JPH0364419B2 - - Google Patents

Description

Detailed Description of the Invention (Industrial Field of Application) This invention relates to improvement of a fabric spreading machine, and is used, for example, to cut a fabric at both ends of the folded fabric. .

(Prior art) In general, fabrics are wound up into large rolls when they come out of the loom, so when cutting or other processing is to be performed on these fabrics, it is necessary to first unroll the fabrics and It is necessary to cut them to the required length and stack or fold them. To this end, a roll-shaped fabric placed on the spreader body is spread onto the workbench by a spreader body that can reciprocate in the spreading direction on a horizontally installed workbench. A contrary spreading machine has been developed in the past.

As such a spreading machine, Japanese Patent Application Laid-Open No. 58-119550
No. 58-139971.

(Problem to be solved by the invention) However, in these conventional methods, the starting end of the fabric is fed out in a state almost parallel to the fabric that has already been spread and stacked on the workbench, and then the spreading machine body Since it is designed to run, it is possible to spread the fabric in one direction without a catcher, but if you try to spread the fabric in the opposite direction as well, the fabric will be twisted or wrinkled, and the edges of the stacked fabrics will be damaged. The disadvantage is that the lines become uneven. Therefore, when performing facing-to-center spreading, the fabric must be wound up into a roll and then reversed. This requires a winding and reversing mechanism, which complicates the equipment and also requires time for winding and reversing. This required time for the machine to return to the starting end side of the machine body, and the efficiency of the spread was poor. Furthermore, when both ends of the fabric are cut after the conventional folding and stretching process, there is a problem in that fabric is lost.

In addition, with conventional fabric spreading machines, when cutting the fabric with a cutter, there was no means to securely fix the fabric at the front side of the cutting position, so when the cutter moved the fabric in the width direction and cut it. There was also the problem that the cutting position of the cloth fabric was likely to fluctuate, and as a result, the cut edges of the cloth fabric became jagged or curved and became irregular, reducing the commercial value of the rolled fabric.

The present invention aims to solve the above problems.

(Technical Means) The technical means of the present invention is that the main body 2 of the spreading machine is capable of reciprocating in the spreading direction on the horizontally installed workbench 1.
The roll-shaped fabric C placed on the main body 2 of the fabric spreading machine is cut into pieces of required fabric length, and the fabric C placed on the fabric spreading machine main body 2 is cut into pieces to the required spreading length. A guide plate 9 that is inclined and guides the feeding of the cloth C, a cutter unit 16 in which a rotary blade 16b provided near the lower end of the guide plate 9 reciprocates to cut the cloth C, and the cutter unit a presser bar 11 that elastically presses the cloth C against the guide plate 9 over the entire width direction thereof on the lower end side of the guide plate 9 when the cloth C is cut by the lower end side of the guide plate 9; a guide member 18 provided below to guide the feeding of the cloth C toward the lower side of the guide plate 9;
The pressing bar 11 is provided with a handling rod 23 that is fed out a certain length and passes through so as to scrape the lower surface of the end of the cloth C suspended on the workbench 1, and the pressing bar 11 is rotated by a required angle by a driving means 14. rotation axis 1
3 through a leaf spring 12.

Embodiments Hereinafter, the present invention will be described based on embodiments with reference to the drawings.

FIG. 1 is a front view showing the appearance of the spreading machine.
A spreader main body 2 is configured to run in the left-right direction in FIG. 1 on a horizontally installed workbench 1. The spreading machine main body 2 includes wheels 3 for running, an unraveling roller 4 for unraveling the roll-shaped fabric C, a feeding roller 5 for feeding out the fabric C downward, and a connection to rotate in synchronization with the feeding roller 5. A lifting unit 7 is provided which is movable up and down between the conveyor 6 and the side plates 2a on both sides of the main body 2 of the spreading machine.

The wheels 3, the unraveling roller 4, and the feeding roller 5
is controlled and driven by a pulse motor, DC servo motor, etc. so that its rotational speed and number of revolutions are closely related to each other. The structure of this part is a well-known structure as described in the above-mentioned Japanese Patent Application Laid-Open No. 58-139971, so a detailed explanation will be omitted.

In FIGS. 2 and 3, the lifting unit 7 is driven up and down in accordance with the stacked thickness of the stretched fabrics, but the fact that the lifting unit 7 is driven up and down and the mechanism for that purpose is Since this is well known, the explanation will be omitted. Between the side plates 8 provided at both ends of the lifting unit 7, a horizontally long guide plate 9 formed with a downwardly convex smooth curved surface is installed on the workbench 1.
It is installed at an angle to the This guide plate 9
is for guiding the feeding of cloth C,
The cloth C fed out from the feeding roller 5 is guided obliquely downward substantially along this guide plate 9, and extends downward from the lower end side 9a. 10 is a spiral roller, and this spiral roller 1
0 is a circular roller 10a in which a wire rod 10b is wound spirally in opposite directions around the center in the longitudinal direction around the circumferential surface of the roller 10a. It spreads from the center in the width direction to both ends to smooth out wrinkles in the length direction of the fabric.

A presser bar 11 for holding down the cloth C when cutting the cloth C is integrally attached to a rotating shaft 13 via a plurality of leaf springs 12, and this rotating shaft 13 is attached to the side plate 8. The rotary solenoid 14 is connected to an output shaft 14a of a rotary solenoid 14 as a driving means via levers 15a, 15b and a link rod 15c.

Therefore, since the rotary solenoid 14 is not energized at all times, the presser bar 11 is in the third position.
As shown in the figure, the rotary solenoid 14 is held at a position apart upward from the cloth C, but when the rotary solenoid 14 is energized when cutting the cloth C, its output shaft 14a rotates by a predetermined angle. The rotation shaft 13 is rotated by a predetermined angle in the clockwise direction with respect to FIG. 3 via the levers 15a, 15b and the ring rod 15c.
is elastically pressed against the upper surface of the lower end side portion 9a of the guide plate 9 over its entire width direction. In addition, after cutting, the rotary solenoid 14
The energization is cut off, the output shaft 14a is reversed and returned to its position, and the rotating shaft 13 is rotated in the opposite direction accordingly, and the presser bar 11 returns to the position separated from the cloth C as shown in FIG. I will do it.

Now, near the lower end side 9a of the guide plate 9, the rotary blade 16b and dough scooping member 16c of the cutter unit 16 are arranged, and these are driven to reciprocate in the horizontal direction integrally with the main body 16a. , the fabric is cut in the width direction by running in either direction. The cutter unit 16 is movably supported by a duct 17 in such a position that the rotary blade 16b rotates in a plane slightly inclined from the vertical plane. Below the lower end side portion 9a, the cloth is placed on the lower side of the guide plate 9, that is, the third
A guide member 18 is provided that serves as a guide when being fed out to the left in the figure. This guide member 18
A roller tube 21 rotatably attached via a bearing 21a to a shaft portion 20 that is mounted between attachment plates 19 attached to both outer sides of both side plates 8, and a roller tube 21 near the end of the roller tube 21. The motor 22 rotates this in the right direction in FIG. 3 via an O-ring-like belt 22a.
By rotating the roller tube 21, the end of the cloth after being cut by the cutter unit 16 can reliably pass through the right side of the roller tube 21 in FIG. 3, and small wrinkles in the cloth can be prevented. Depending on the position of the roller tube 21 and the thickness or hardness of the fabric, it may not be necessary to rotate it. The above-mentioned shaft part 2
0 serves as a drive shaft for driving a cleaning rod 23 that reciprocates in the direction of paper spreading below the roller tube 21.

That is, the handling rod 23 is fixed at both ends to the lower ends of two arms 25 which are rotatably attached to both mounting plates 19 by shafts 24 on the same axis. A chain 26 is stretched between the attached sprocket 24a and the sprocket 20a attached to the end of the shaft section 20, and by rotationally driving the shaft section 20 with a motor (not shown), the handling rod 23 is moved to the shaft 24. It is designed to be rotated around , and reciprocated between, for example, the position shown by the solid line in FIG. 3 and the position shown by the chain line. By this, Judgment Rod 23
After the cloth has been cut, it is swung out a certain amount to scrape the lower surface of the drooping end of the cloth C, thereby handling the end of the cloth C. For example, as shown by the solid lines in FIG. 4A and B, when the fed-out cloth is hanging down with wrinkles and twists on the already spread cloth C1 on the workbench 1, the handling rod 23 It passes by rubbing the lower surface of the end of the cloth C, and the cloth C is divided in the direction in which the handling rod 23 moves, as shown by the imaginary line, and becomes in a natural state without wrinkles. FIG. 4A shows the case where the fabric is spread from the right to the left in the figure, and FIG. 4B shows the case where the fabric is spread in the opposite direction.

Therefore, if the stopping position of the main body 2 of the fabric spreading machine 2 on the workbench 1 and the rotation speed of the feeding roller 5 are controlled to keep the feeding length, that is, the swinging amount of the fabric C constant, the fabric C can be moved in any direction. Tanmono C also in spreading
The starting ends of 1 can be aligned. In this case, in order to keep the length of the feed roller 5 at the end constant, or to adjust it to the length that will allow the best separation and alignment of the edges, the motor that drives the feed roller 5 is set to a timer. It may be operated only for a certain adjusted time, or the total number of rotations may be controlled.

Now, how the operation of this spreader is controlled will be explained below.

FIG. 5 is a flowchart showing the outline of the operation when folding and cutting both ends and spreading the fabric using the fabric spreading machine.
In this, the main body refers to the spreading machine main body 2,
The direction is based on Figure 1. The left direction in these figures is the forward direction, and the right direction is the backward direction. To explain this flowchart a little bit, first, while the main body is stopped at the stop end of the traveling section (in this case, the retreat end), the cloth C is fed out by the swing amount by the rotation of the feeding roller 5. , As a result, the cloth C becomes the state shown in FIG. 4A. Next, the handling rod 23 moves to the right and handles the cloth C, resulting in the state shown by the imaginary line in the figure.
After that, the fabric spreading machine main body 2 moves forward and feeds out the fabric C to spread the fabric, but when starting and stopping running, it is necessary to prevent wrinkles from occurring in the spread fabric and to reduce shock. It is now possible to drive at low speeds. At the forward end, the cutter unit 16 runs to cut the cloth C in the width direction, thereby completing one stretching in the forward direction. Next, by rotating the feeding roller 5 again, the cloth C is fed out by a different swing amount, resulting in the state shown in FIG. 4B. Then, the handling rod 23 moves to the left and handles the cloth C, resulting in the state shown by the imaginary line in the figure. Thereafter, the fabric spreading machine main body 2 moves back and feeds out the fabric C to spread the fabric. At this time, the roller cylinder 21 lightly touches the back (top surface) of the fabric C and serves as a guide. At the retreating end, the fabric C is cut, which means that it has been stretched once in the retreating direction. By repeating these steps, the spreading of the sheet facing toward the middle surface can be quickly performed.
Incidentally, the spiral roller 10 and the roller cylinder 21 are always in a rotating state, and the presser bar 11 is adapted to press the cloth C only when the cutter unit 16 is operated.

As mentioned above, by performing the handling using the handling rod 23 at the starting end of the rolling process, there are almost no wrinkles in the rolled fabric, and the ends of the fabric are well aligned. It will be done. It goes without saying that in addition to the spreading according to the flowchart described above, it can also be applied to unidirectional spreading in either the forward direction or the backward direction.

In the above-described embodiment, the cutting rod 23 is shaped like a strip, but it may be shaped like a round pipe, a square pipe, a round bar, or other shapes. Further, the processing rod 23 may be moved back and forth parallel to the workbench 1. By selecting the material of the cutting rod 23 or applying an appropriate coating to the surface of the cutting rod 23, the friction between the cloth and the cutting rod 23 during sorting can be adjusted to an appropriate level, and wrinkles can be prevented. It is possible to obtain an optimal state with good repeatability without the occurrence of. Instead of the roller tube 21, it may be a round bar or a long plate with an appropriately curved surface.

(Effects of the Invention) According to the present invention, the occurrence of twists or wrinkles at the starting end of the cloth can be almost completely eliminated by handling the starting end of the cloth that is being rolled using the handling rod. Moreover, since the unwinding length of the end of the fabric hanging on the workbench is constant, it is possible to spread the fabric by passing the handling rod outward along the bottom surface of the edge of the fabric. Therefore, the starting end of the cloth is always located at a fixed position, so that the end alignment can be reliably performed with high precision.

Further, according to the present invention, a presser bar is provided which elastically presses the fabric against the guide plate over the entire width direction of the guide plate on the lower end side of the guide plate when cutting the fabric by the cutter unit. Since it is integrally attached via a leaf spring to the rotating shaft that is rotated within the required angle range by the drive means, the presser bar is normally kept away from the fabric and the drive means is not engaged when cutting the fabric with the cutter unit. By activating and rotating the rotating shaft by a required angle, the presser bar can elastically press the fabric near the cutting position and securely fix the fabric. Especially in this case, since the presser bar is designed to elastically press the fabric, even if the thickness of the fabric to be spread changes, each fabric can be securely held and fixed without changing the mounting position of the presser bar. I can do it.

Therefore, the cutting of the cloth by the rotary blade of the cutter unit 16 can be performed appropriately, the cut edge of the cloth does not exhibit a jagged or curved shape, and the commercial value of the cloth does not decrease.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and FIG. 1 is a front view of the spreading machine as seen from a direction perpendicular to the running direction, and FIG.
The figure is a view seen from the arrow in Figure 1 showing an enlarged view of the main part, Figure 3 is a schematic diagram showing the main part of Figure 1 in an enlarged manner, and Figures 4 A and B show how the cloth C is being handled. The figure shown in FIG. 5 is a flowchart. C... Cloth material, 1... Workbench, 2... Spreading machine main body, 9... Guide plate, 9a... Lower edge portion, 10...
...Spiral roller, 10b...Spiral part, 11...Press bar, 12...Plate spring, 13...Rotation shaft, 14
... Rotary solenoid (driving means, 16 ... cutter unit, 16a ... rotary blade, 18 ... guide member, 21 ... roller cylinder, 23 ... cleaning rod.

Claims (1)

[Scope of Claims] 1 A roll-shaped fabric placed on the fabric spreading machine body is stretched to a required length by a fabric spreading machine body that can reciprocate in the fabric spreading direction on a horizontally installed workbench. In a spreading machine that cuts the fabric into lengths and spreads it on the workbench, there is a guide plate that is inclined with respect to the workbench and guides the feeding of the cloth, and a guide plate that is installed near the lower end of the guide plate. A cutter unit in which a rotary blade provided thereon reciprocates to cut the cloth, and when the cutter unit cuts the cloth, the cutter unit elastically presses the cloth against the guide plate over the entire width of the guide plate at the lower end side of the guide plate. a presser bar attached to the guide plate; a guide member provided below the lower end side of the guide plate to guide the downward feeding of the guide plate; a handling rod that is fed out for a certain length and passes through so as to scrape the bottom surface of the end of the cloth hanging on the workbench; A spreading machine characterized in that it is integrally attached to the machine via a leaf spring. 2. The spreading machine according to claim 1, wherein the driving means is a rotary solenoid. 3. The fabric spreading machine according to claim 1 or 2, wherein the cutter unit is capable of cutting the fabric by traveling in any direction during reciprocating movement.