JPH0637259B2 - Dismantling device 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 defibrating device used for pulling out an end of a fabric body from a raw fabric roll supported by a raw fabric supporting portion in a fabric spreading machine that performs folding work such as folding and folding.

(Problems to be Solved by the Related Art and Invention) In the spreading machine as described above, as is well known in the art, a raw material roll can be forcibly rotationally driven in the unraveling direction while being horizontally supported. An anti-support portion is provided.

In the conventional spreading machine, even if the original fabric roll can be mechanically supplied and transferred to the original fabric support part, the end of the fabric body of the original fabric roll on the original fabric support part is conveyed by the fabric conveyor or The dismantling work to pull out onto the roller had to be done manually.

Therefore, even with a spreading machine capable of automatically supplying and spreading the original fabric roll, a great deal of time and labor is required for the unwinding work after the original fabric roll is transferred, It was not possible to achieve complete rationalization.

(Means for Solving the Problems) In order to solve the above-mentioned conventional problems, the present invention provides
A movable table movable in a perspective direction with respect to the unwinding side surface of the original roll horizontally supported by the original supporting part of the fabric spreading machine, a driving means for reciprocating the movable table, and a shaft supported by the movable table. A drivable resolving roller and a controller for controlling the movable table driving means are provided, and the controller is
After the solution moving roller abuts the original fabric roll surface in a rotating state due to the forward movement of the movable table, the movable table is reciprocated in a small stroke to move the solution solution roller to the original fabric roll surface a plurality of times. The present invention proposes a defibrating device for a retraction machine configured to be brought into contact with each other intermittently.

(Operation) When the original fabric roll is transferred onto the original fabric support portion, the movable table is moved forward in the original fabric roll direction by the movable table drive means while the unraveling roller is rotationally driven in a predetermined direction. To move. After the defusing roller first contacts the surface of the original roll, as a result of the controller controlling the movable table driving means, the movable table reciprocates in a small stroke and rotates. The roller will come into contact with the surface of the original roll several times intermittently.

That is, the rotating defibrating roller is repeatedly brought into contact with the surface of the drawn end portion of the cloth body on the surface of the original fabric roll a plurality of times. Therefore, if the driving torque of the motor for driving the defibrating roller is small and the defibrating roller is continuously brought into contact with the surface of the original fabric roll, the defusing roller will stop. In this case, even if the amount of pulling out of the cloth due to the contact of the disentangling roller with the surface of the original fabric roll once is small, the disintegrating roller intermittently contacts the surface of the original fabric roll multiple times. By making contact with each other, the end of the fabric body can be reliably pulled out from the surface of the original fabric by the required length. In other words, the movable table may be reciprocally moved in a small stroke until the end of the cloth is reliably pulled out, and its length can be determined by the elapsed time or the number of reciprocations of the movable table.

(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 conventionally well-known spreading machine, which can reciprocate on a spreading work table 2 in the length direction of the work table 2 and is mounted on an original fabric support portion 3 on the upper side. The fabric body 4a delivered from the horizontally supported original fabric roll 4 can be sent to the fabric body front-rear separation and cutting device 8 via the first belt conveyor 5, the second belt conveyor 6, and the delivery roller 7. .

A pair of front and rear belt conveyors 9 are provided on the original fabric support portion 3.
A and 9B are arranged in a V shape, and the belt conveyor 9A on the material transfer side can be vertically swung to change the angle. 3 is transferred to the outside, the belt conveyor 9A is laid down to the outside as shown by an imaginary line, and the original roll 4 rolls on the belt conveyor 7A in this laid state to be transferred to the other belt conveyor 9B. Reach the middle position. The configuration of the original fabric support portion 3 using the pair of belt conveyors 9A and 9B is an example, and for example, an inclined rail that supports the original fabric roll 4 via its core shaft 4b and a lower end side of the inclined rail. The original fabric supporting portion may be a combination with a drivable cloth feeding roller that comes into contact with the unwinding side surface of the original fabric roll 4.

Reference numeral 10 is a disassembly device according to the present invention, which is a guide rail 1
1, a resolving roller 13 is pivotally supported on the tip of a movable table 12 which can reciprocate along the movable table 12.
Is a pair of belt conveyors 9A, 9A of the original fabric supporting portion 3.
It is possible to approach the surface of the original roll 4 supported on B from the unwinding side (the side where the fabric feeding belt conveyor 9B is located) obliquely from above.

As shown in FIGS. 2 and 3, the unraveling roller 13 is used.
Is horizontally supported by the left and right side wall portions 12a, 12b of the movable table 12 via bearings 14a, 14b and both end support shaft portions 13a, 13b, and has a length of a reaction ring 13c made of a soft elastic material such as sponge. It is attached at proper intervals in the direction. M1 is a motor for driving the disentanglement roller 13, and includes a drive shaft 16 supported by one side wall portion 12a via a bearing 15, the drive shaft 16 and the support shaft portion 13a of the disentanglement roller 13. Timing pulleys 17, 18 attached to the vehicle and both timing pulleys 17, 1
It is interlockingly connected to the unraveling roller 13 via a timing belt 19 hung between the rollers 8.

Reference numeral 20 denotes a drive means for the movable base 12, which is a side wall portion 12
A drive shaft 12 rotatably supported between a and 12b via bearings 21a and 21b, and a pair of left and right fixed chains 23a and 23b attached above the pair of left and right guide rails 11 for guiding the movable base 12. , These two fixed chains 23
a and 23b, toothed shafts 24a and 24b fixed to both ends of the drive shaft 22, a motor M2 connected to one end of the drive shaft 22, and a movable base 12 for urging the movable base 12 in an ascending direction. It is composed of a torsion coil spring 25. This torsion coil spring 25
Both ends are locked by the spring locking member 26 fixed to the drive shaft 22 and one side wall portion 12a while being loosely fitted to the drive shaft 22. Reference numeral 27 is a guide wheel fitted to the pair of left and right guide rails 11, and is pivotally supported on both side wall portions 12a and 12b of the movable table 12. Of course, instead of the guide wheel 27 fitted to the guide rail 11, it is also possible to use a guide wheel that sandwiches the guide rail from above and below.

As shown in FIG. 4, the timing belt 19 of the transmission system that drives the unraveling roller 13 is configured to be tensioned by the tension pulley 28. This tension pulley 28 is the drive side timing pulley 1
Timing belt 19 is pulled by the rotation of 7
In the unloaded state in which the defibrating roller 13 driven is axially supported by the movable arm 30 which is biased in the direction of the arrow 29 (a spring is not shown) so as to be pressed against Then, as shown in the drawing, the movable arm 30 moves in the direction of the arrow 29 and the tension pulley 28 tensions the timing belt 19. However, as shown in FIG. When pressure is applied and a load is applied, the timing belt 19 on the side pulled by the driving timing pulley 17 linearly tensions and pushes the tension pulley 28 outward, so that the movable arm 30 resists the urging force. Since it moves in the 31 direction, the arrow 3 of the movable arm 30 serves as a detector for detecting that the unrolling roller 13 is pressed against the original roll 4. It is provided a limit switch LSW for detecting a movement in the direction. In the illustrated example, the tension pulley 2 is driven by the actuator of the limit switch LSW.
The movable arm 30 that pivotally supports 8 is also used.

As shown in FIG. 6, the motors M1 and M2 are controlled by a controller 33 such as various sequencers (programmable controller or the like) or a microcomputer based on the unraveling start command 32 or the ON / OFF signal of the limit switch LSW. Hereinafter, the control method by the controller 33 will be specifically described.

As shown in FIG. 7, the cloth 4a is formed on the surface of the original roll 4.
The detected mark 34 is attached in advance at a position spaced apart from the free end of the. As shown in FIG. 8, the original fabric roll 4 is moved between the pair of belt conveyors 9A and 9B of the original fabric support portion 3 in a direction in which the cloth 4a can be pulled out from the lower side of the original fabric roll 4 by the belt conveyor 9B. List. At the time of this transfer,
As described above, since the original roll 4 rolls on the belt conveyor 9A which has fallen down, the end of the cloth body 4a may be disturbed. Therefore, after the transfer of the original fabric roll 4 is completed, the belt conveyors 9A and 9B are reversely driven for a certain period of time to rotate the original fabric roll 4 in the cloth winding direction. However, when a reflection type photoelectric switch 35 disposed below the belt conveyors 9A and 9B detects the mark 34 on the surface of the original roll after a certain period of time, the belt conveyors 9A and 9B are detected.
Stop the reverse drive of. At this time, the detected end is positioned so that the free end of the cloth body 4a of the original roll 4 is at a position that is a proper distance above the position facing the defusing roller 13 in the defibrating device 10 as shown in the figure. The attachment position of the mark 34 is determined.

When the transfer of the original fabric roll 4 to the original fabric support portion 3 and the positioning of the cloth end portion are completed as described above, the unraveling start command 32 is given to the controller 33. The controller 33 is programmed to perform the control shown in the flowchart of FIG. 9 by the unwinding start command 32.
That is, the motor M1 is driven to rotationally drive the unraveling roller 13 in a predetermined direction, and the motor M2 is driven to rotate both toothed wheels 24a and 24b through the drive shaft 22 in the movable table advancing and descending direction. Driven. Fixed chain 23
When the toothed wheels 24a and 24b that engage with the a and 23b rotate, the movable table 12 moves forward and downward along the guide rail 11, but the torsion coil spring 25 is wound by the rotation of the drive shaft 22. .

As shown in FIG. 5, the disassembling roller 13 is the original fabric roll 4
When the braking force is applied to the unwinding roller 13 by contacting the surface of the movable roller 30, the movable arm 30 pivotally supporting the tension pulley 28 is moved in the direction of the arrow 31 by the tension of the timing belt 19 as described above. The limit switch LSW is turned on. This limit switch LS
When the W is turned on, the motor M2 is stopped and the drive shaft 2
Since 2 is switched to the free state, the driving shaft 22 and the two tooth mechanisms 24a and 24b are rotationally driven in the opposite direction (moving table retracting and ascending direction) by the biasing force of the twisted coil spring 25 that has been wound.

Therefore, the movable table 12 is switched from the forward descending movement to the backward raising movement. As a result, the unraveling roller 13 is again separated from the surface of the original fabric roll 4 and returns to the unloaded state, so that the movable arm 30 pivotally supporting the tension pulley 28 is urged by the urging force of the arrow 29 as described above. And the timing belt 19 is tensioned, and the limit switch LSW is turned off. This limit switch LS
By turning off W, the toothed wheel 24 is again driven by the motor M2
a and 24b are driven in the forward and downward directions of the movable table to move the movable table 1
2 is forcibly moved forward and downward.

By repeating the above-mentioned action, the movable table 12 repeats the backward ascending movement and the forward descending movement with a small stroke after the disassembling roller 13 first comes into contact with the surface of the original fabric roll 4. The unrolling roller 13 that is rotationally driven to contact the surface of the original roll 4 intermittently. Due to the intermittent contact action of the unraveling roller 13 with respect to the surface of the original fabric roll 4, the free end of the cloth body 4a wound around the surface of the original fabric roll 4 as shown by the broken line in FIG. The rotating force of the reaction roller 13 is intermittently received and fed downward, and finally peeled off from the position facing the reaction roller 13 and transferred onto the belt conveyor 9B. That is, the reaction reaction is completed.

The time for moving the movable table 12 back and forth with a small stroke is set in advance in the controller 33 such that it is slightly longer than the longest predicted time until the reaction is completed. However, if this set time elapses, the motor M
While stopping the driving of the unraveling roller 13 by 1,
The movable table 12 is moved backward to the upper limit position. The backward movement of the movable table 12 to the upper limit position can be performed only by the urging force of the coiled torsion coil spring 25, but the motor M2 is reversely driven to drive the drive shaft 22 and the toothed wheels 24a, 24a. 24b is forcibly reversed to move the movable table 12
It is also possible to forcibly retreat to the upper limit position.

The method of reciprocally moving the movable table 12 with a small stroke so as to bring the solution-resolving roller 13 into contact with the surface of the original fabric roll intermittently a plurality of times is not limited to the method of the above embodiment. For example, without using the torsion coil spring 25, the toothed wheels 24a and 24b may be repeatedly driven in the forward and reverse directions by the motor M2. Further, a sensor for detecting the surface of the original roll 4 in contact or non-contact when the unraveling roller 13 contacts the surface of the original roll 4 is provided, and the movable table 12 is moved based on the detection signal of this sensor. It is also possible to switch to backward and upward movement. However, in the case of the configuration of the above-described embodiment, it is easy to switch the resolving roller 13 to the backward ascending movement after pressing it firmly against the surface of the original fabric roll 4 with certainty.

Further, in the above-described embodiment, the movable table 12 that linearly reciprocates.
However, it is also possible to use a movable table that swings around a support shaft.

(Effects of the Invention) According to the unraveling device of the present invention as described above, as long as the original fabric roll is transferred onto the original fabric support part in a predetermined state, the original fabric roll does not require any manpower. The end of the cloth can be pulled out from the machine, and the efficiency of the unraveling work can be improved and rationalized.

In particular, in the device of the present invention, it is possible to utilize a small and light motor having a small torque as a motor for driving the unraveling roller, and even if it is a pile cloth having a large friction between the cloth weight and the weight portion. The edge of the fabric body can be reliably pulled out within a relatively short time, and there is almost no risk of undeflecting.

[Brief description of drawings]

FIG. 1 is a schematic side view for explaining the configuration of the entire web spreading machine,
The drawing is a cross-sectional plan view showing the essential parts of the unraveling device of the present invention, FIG. 3 is the same vertical sectional front view, FIG. 4 is the same longitudinal sectional side view, and FIG. Fig. 6 is a vertical sectional side view of the motor control system, and Fig. 6 is a block diagram for explaining the motor control system.
FIG. 7 is a perspective view showing one end of the original fabric roll, FIG. 8 is a side view for explaining the reaction action, and FIG. 9 is a flow chart for explaining the control procedure. 3 ... Original fabric support part, 4 ... Original fabric roll, 4a ... Fabric body,
9A, 9B ... Belt conveyor, 10 ... Dismantling device, 1
1 ... Guide rail, 12 ... Movable base, 13 ... Dissolution roller, 16, 22 ... Drive shaft, 19 ... Timing belt, 20 ... Movable base drive means, 23a, 23b.
Fixed chain, 24a, 24b ... Tooth wheel, 25 ... Torsion coil spring, 27 ... Guide wheel, 28 ...
Tension pulley, 30 ... Movable arm, 33 ... Controller, M1, M2 ... Motor, LSW ... Limit switch.

Claims (1)

[Claims] 1. A movable base movable in a perspective direction with respect to a resolving side surface of an original roll horizontally supported by an original support portion of a reversing machine, a driving means for reciprocating the movable base, and the movable base. And a controller for controlling the movable table drive means, wherein the controller is a forward movement of the movable table, and the solution roller is in a rotating state and the original roll surface. After the first contact, the movable table is reciprocally moved with a small stroke to intermittently contact the defibrating roller with the surface of the original fabric roll a plurality of times.