JPH0615926Y2 - Spreading machine - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention is to roll out roll-wound fabric (original fabric) from a loom, unwind it into a sheet, and cut it to a predetermined length for work. The present invention relates to a spreading machine for stacking work on a table body.

(Prior Art) A conventional spreading machine is composed of a workbench and a spreading machine body, and a supporting device for rolling a roll-shaped piece of cloth and a feeding device for unwinding and unwinding the piece of cloth supported by the supporting device into a sheet shape. The spreader main body equipped with a cutter device that cuts a piece of material that has been unwound by a feeding device is configured to be able to travel forward and backward along a workbench for stacking pieces of material.

In this type of spreading machine, the spreading work is performed according to the following procedure, for example. That is, a catcher for fixing an end of a piece of cloth to one end on a horizontal workbench is provided on this workbench, and the main body of the spreading machine with traveling wheels supported on this workbench is directed toward the catcher. While it is installed so as to be able to move back and forth, the roll-wound piece of fabric is set in a rotatable state on the retraction machine body, and the fabric is fed by the feeding roll group forming the feeding device of the retraction machine body. Be able to feed in order toward the catcher. Then, first, the main body of the spreader is moved forward to the catcher, and the end of the piece of cloth that has been prepared for feeding is fixed on the workbench by the catcher.After that, the feeding roll group and the traveling wheels are driven to spread the sheet. The backward movement of the main body and the feeding of the unwound material by the unwinding roll group are synchronized to spread the unwound unwound material on the workbench. When the piece of cloth is spread by a predetermined width, driving of the feeding roll group and the backward traveling of the main body of the spreading machine are stopped, and the spread cloth is cut by the cutter device provided in the main body of the spreading machine and cut. And disconnect it from the main body. After that, the main body of the fabric spreading machine is moved forward to the catcher while the feeding roll group is stopped, and the new end of the piece of fabric is fixed on the work table by the catcher, and one cycle of the operation is completed. By repeating such a cycle operation many times, it is possible to stack a large number of pieces of cloth cut into predetermined widths on the workbench.

[Problems to be solved by the invention]

In the above-mentioned spreading operation, in order to fix the new end of the piece of cloth on the workbench with the catcher, the new end of the piece of cloth is passed over the piece of cloth that has been unraveled on the workbench. Need to bring up. When such fabric spreading work is performed and the fabric pieces are sequentially stacked on the workbench,
As the pile height of the piece of fabric increases as the work progresses, the feeding end of the piece of fabric from the machine is set higher than the pile height of the piece of fabric piled on the workbench. There must be. Due to such requirements, in the conventional spreading machine, the feeding end of the piece of cloth was set at a high place apart from the workbench, so that the main body of the spreading machine became tall and There was a risk that running stability would be impaired due to sideways shake or sideways fall during running.

On the other hand, according to Japanese Utility Model Laid-Open No. 57-181755, an inner frame equipped with a supporting device for a piece of cloth, a feeding device, and a cutter device is attached to the outer frame via a lifting drive device, and traveling wheels provided on the outer frame are used as a workbench. A type of reversing machine that allows the vehicle to move forward and backward is proposed. In this type of spreading machine,
At the start of spreading operation, that is, when too many pieces of material are piled up on the table, the position of the inner frame is lowered and the feeding end of the piece of material is set near the work table. When the pile-up height of the fabric is increased due to the progress of the reciprocating work, the inner frame is raised to raise its position, and the feeding end portion of the fabric is set at a position away from the workbench.

Therefore, in this type of spreader, when the height of piled pieces of fabric on the workbench gradually increases, the center of gravity of the spreader main body becomes high because the inner frame is located at a high place, and Since a state in which the horizontal swing and the horizontal fall of the sheet are likely to occur is generated, there is a problem that the stability during the spreading operation is reduced.

The present invention solves this problem. Even if the position of the inner frame becomes high and the center of gravity of the machine itself becomes high, it is highly safe to carry out the work of spreading and falling sideways during running. It is an object of the present invention to provide a postponing machine capable of carrying out.

[Means for solving problems]

In order to achieve the above-mentioned object, the spreader of the present invention comprises a workbench in which left and right legs for supporting the workbench main body are provided in a workbench main body to which a piece of material is spread, and a spreader main body. , A guide rail horizontally laid near the lower end of each of the left and right legs of the workbench, and the rebel machine main body is supported by the support device and the support device wound in a roll shape. And a feeding device for feeding and disentangling a piece of fabric into a sheet,
A cutter device for cutting a piece of material unraveled by the feeding device, an inner frame equipped with a supporting device, a feeding device, and a cutter device, and a workbench main body with its lower end positioned lower than the workbench main body. An outer frame provided with a pair of plate bodies that are arranged on both sides of the sandwiched frame, and an inner frame that supports the inner frame by the outer frame and that has a height corresponding to the stacking height of the piece of material that is extended on the workbench body. Elevating and lowering drive device for raising and lowering, traveling wheels supported by the workbench main body for moving the outer frame forward and backward along the workbench main body, and a pair of plate members in the outer frame rotatably provided around the vertical axis And a guide roller that follows the side surface of each of the guide rails.

[Action]

When the elevating and lowering drive device is operated to elevate and lower the inner frame in the retraction machine of this configuration, the support device, the feeding device, and the cutter device for the fabric object move up and down together with the inner frame. Therefore, as the inner frame is moved up and down, the height of the feeding end portion of the piece of material in the retraction machine body from the workbench body is increased or decreased.
As a result, even if the feeding end portion is not fixedly set at a high place apart from the workbench main body, the inner frame is gradually raised as the height of the piece of material loaded on the workbench main body increases. If this is done, proper spreading work can be performed at all times.

In addition, the main body of the cloth spreader is moved forwards and backwards along the main body of the work table via the traveling wheels supported by the main body of the work bench. It is suppressed or prevented by the guiding action in cooperation with the guide roller provided on the frame.

The guide rails are laid horizontally near the lower ends of the left and right legs of the workbench, and the guide rollers are a pair of plate members of the outer frame, that is, the lower end is lower than the workbench main body. Since it is rotatably provided around the vertical axis on each of the pair of plate bodies located, the copying position of the guide roller with respect to the side surface of the guide rail must be set at a position considerably lower than the height of the workbench body. In addition, the guide rails are provided on each of the left and right legs, and the guide rollers are imitated on the respective side surfaces of the guide rails, so that the inner frame rises and the main body of the fabric Even if the center of gravity of the robot is high and horizontal shake or sideways tilt is likely to occur, it is possible to reliably suppress such horizontal shake or sideways fall and spread it at a low position on both sides of the left and right legs of the workbench. Machine book It can be kept running stability.

〔Example〕

 Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a partially cutaway plan view showing a spreader installed on a workbench 1, and FIG. 2 is a vertical sectional side view thereof. In the figure,
In the first operation, the workbench main body 1a is provided with left and right legs 1b, 1b for supporting the workbench main body 1a. The catcher 2 is installed at one end of the workbench body 1a.

The spreader main body 3 includes a support device 6, a feeding device 7, a cutter device 8, an inner frame 4, and a pair of plate bodies 5a and 5a arranged on both sides of the workbench main body 1a. Frame 5 and lifting drive device 100 (see FIG. 3)
And a traveling wheel 40 and a guide roller 45, which will be described in detail below.

The support device 6 includes a pair of support bases 9 and 10 arranged in a V shape.
The support base 9 on the rear side is provided with a plurality of belts 9b arranged side by side around a pair of long rollers 9a, 9a. Similarly, the front support 10 also has a plurality of belts 10b arranged side by side between a pair of long rolls 10a, 10a. FIG. 4 shows the drive system of the supporting device 6, and as is apparent from this, among the long rolls 9a and 10a of both supporting bases 9 and 10, those arranged close to each other are an odd number, for example, three. The gears 11 are connected to each other, and the sprocket 13 fixed to the one long roll 10a is connected to the sprocket 15 of the motor 14 by the chain 16. With such a configuration, when the motor 14 is rotated in the normal direction, its rotational force is transmitted to the long roll 10a via the sprocket 15, the chain 16, and the sprocket 13, and further transmitted to the long roll 9a via the gears 11 ... To be done. Therefore, the pair of support bases 9 and 10
By the rotation of the belts 9b and 10b, the roll-wound fabric A supported by the support device 6 is rotated in the feeding direction. Further, the rear support base 9 can be erected. A specific configuration for this purpose is illustrated in FIG. That is, the nut 17 is rotatably attached to the support base 9 around the shaft 18, and the box 20 is rotatably attached to the inner frame 4 around the shaft 19, so that the box 20 can only rotate. The attached screw shaft 21 is screwed into the nut 17. A motor 22 is installed in the box 20. The motor 22 and the screw shaft 2 are
1 is connected by gears 23 and 24. In this configuration, when the motor 22 is rotationally driven, the rotational force is transmitted to the screw shaft 21 by the gears 23 and 24. Then, when the screw shaft 21 rotates, the nut 17 is screwed into and out of the screw shaft 21 in accordance with the rotation direction thereof, and accordingly, the support base 9 tilts up and down with the lower long roll 9a as a fulcrum. In the same figure, the phantom line shows the state in which the support base 9 is tilted. As a means for raising and lowering the support base 9, needless to say, other than the means illustrated in FIG. 5, an air cylinder or a hydraulic cylinder can be used, and other well-known means can be used.

Next, the feeding device 7 will be described. In this embodiment, the supporting device 6 constitutes a part of the feeding device 7. That is, the feeding device 7 includes the support device 6 and a pair of long rolls 25.
A plurality of belts 25b are arranged side by side between a and 25a, and a slanting base 25 is wound around them, and a guide roll 2 is provided at a proper position.
6, and the tilt table 25 is driven to rotate in the direction in which a piece of material is fed by a motor (not shown).

The cutter device 8 has a cutter 8b built in a case 8a, and the cutter 8b is moved in the axial direction of the roll-wound cloth A so that the unwound cloth A ₁ can be cut straight.

The inner frame 4 is attached to the outer frame 5 so as to be able to move up and down. FIG. 3 exemplifies a configuration for raising and lowering the inner frame 4, and 27 and 27 show screw shafts attached to plate members 5a and 5a of the outer frame 5 via brackets 28 and 28 in an upright state. ing. 29 is a motor as a lifting drive source, and the gear 30 of the motor 29 and the gear 32 of the rotary shaft 31 are connected by a chain 33,
Moreover, the rotating shaft 31 and one screw shaft 27 are connected by a bevel gear mechanism 34. Also, a pair of screw shafts 2
7, 27 are connected by a tuning mechanism 35. The tuning mechanism 35 includes a rotary shaft 35a inserted through long holes 4b, 4b formed in the plate bodies 4a, 4a of the inner frame 4, and a transmission for connecting one end of the rotary shaft 35a to the rotary shaft 31. It comprises a mechanism 35b, a rotating shaft 37 connected to the other screw shaft 27 by a bevel gear mechanism 36, and a transmission mechanism 35c connecting the other end of the rotating shaft 35a. In contrast,
The screw shafts 27, 27 include plate members 4a, 4 of the inner frame 4.
Nuts 38, 38 fixed to a are screwed together. In such a configuration, when the motor 29 is driven in the forward or reverse direction to rotate the one screw shaft 27, the other screw shaft 27 also rotates in synchronization with the one screw shaft 27 by the action of the tuning mechanism 35. Therefore, these screw shafts 27, 2
Nuts 38, 38 screwed onto the screw shafts 27, 27
The inner frame 4 is moved up and down with respect to the outer frame 5 accordingly. Inner frame 4
The ascending / descending width of is set according to the stacking height of the unwound material unwound on the workbench 1. That is, if the work of spreading is repeated, the stacking height of the piece of fabric gradually increases. Therefore, the inner frame 4 is moved up and down to a height corresponding to the stacking height at each time. A method of controlling the elevation width of the inner frame 4 will be described later. The screw shaft 27, the nut 38, the bevel gear mechanisms 34 and 36, the motor 29, and the like described above are the lifting drive device 100.
However, the lifting drive device may be an air cylinder, a hydraulic cylinder, or any other known lifting means.

As shown in FIGS. 2 and 3, traveling wheels 40 ... Are provided on the outer frame 5. FIG. 6 shows a drive system for the traveling wheels 40. As is clear from this figure, the left and right traveling wheels 40, 40 are connected by a tuning mechanism 41, and one traveling wheel 40 is connected to a motor 42 via a transmission mechanism 43. As shown in FIG. 2, FIG. 3 and FIG. 6, the traveling wheels 40 are the workbench body 1a.
It is possible to drive on. Further, as shown in FIG. 3, a pair of plate members 5a, 5a forming the outer frame 5 is formed.
Are arranged on both sides of the workbench main body 1a with the lower end positioned lower than the workbench main body 1a. The guide rollers 45, 45 are provided at the lower end of each of the plate bodies 5a, 5a. In addition to being provided, guide rollers 44, 44 are also provided on these plate bodies 5a, 5a at corresponding positions with the workbench body 1a.

Each of these guide rollers 44, ..., 45 is rotatably supported about the vertical axis. The upper guide rollers 44, 44 are made to follow the side end surface of the workbench main body 1a, and the lower guide rollers 45, ... Are paired to form a pair of left and right legs 1b, 1b of the workbench 1. Each of the guide rails 46, 4 laid horizontally near the lower end
The guide rails 46 and 46 are shaped so as to sandwich the guide rail 6 between them.

Therefore, when the traveling wheels 40 are driven and the retraction machine body 3 travels forward and backward along the workbench body 1a, the guide action of the guide roller 44 by the side end surface of the workbench body 1a and the guide rollers by the guide rails 46, 46 are performed. 45 ..., 45 ...
With the guiding action of (1), sideways shake and sideways fall of the retraction machine body 3 are prevented. In particular, the guide rails 46 are laid horizontally at positions near the lower ends of the left and right legs 1b, 1b of the workbench 1, and the guide rollers 45, ... Are a pair of plate members 5a, 5a of the outer frame 5, That is, since the lower end portion is provided rotatably around the vertical axis on each of the pair of plate members 5a, 5a located below the workbench body 1a,
The copying position of the guide rollers 45 with respect to the side surface of the guide rail 46 is set to a position considerably lower than the height of the workbench main body 1a.
Is provided on each of the left and right legs 1b and 1b,
Since the guide rollers 46 ... Are imitated on the respective side surfaces of the guide rails 45, 45, the inner frame 4
Even if the position of the center of gravity of the retraction machine main body 3 rises and the side shake and the sideways fall are likely to occur, such a situation occurs at low positions on both sides of the left and right legs 1b and 1b of the workbench 1. Lateral shake and lateral fall are reliably suppressed, and the traveling stability of the retraction machine body 3 is maintained. Guide roller 4 by the side end surface of workbench 1
The guiding action of No. 4 assists the guiding action of the guide rollers 45, ..., 45 by the guide rails 46, 46, and is particularly useful for suppressing lateral shake. However, it is not enough to provide the guide roller 44 with the lateral tilt, and the guide rail 4
Only when the guiding action of the guide rollers 45, ..., 45 on the left and right sides of the guide rollers 45, 46 at low positions is exerted, the lateral shake as well as the lateral tilt is surely prevented. Therefore, even by omitting the guide rolls 44, it is possible to suppress lateral shake and sideways tilt during traveling of the retraction machine 3 and perform safe retraction work.

In the above, the roll-wound roll-wound fabric A is held between the pair of support bases 9 and 10 of the support device 6, and the fabric A ₁ delivered from the support device 6 is made to follow the inclined platform 25 of the delivery device 7. . From this state, the retraction machine main body 3 is moved forward, the end of the piece of cloth A ₁ is fixed on the workbench main body 1 by the catcher 2, and then the retraction machine main body 3 is moved backward and the feeding device 7 is synchronized. When this is done, the cloth is spread as in the conventional case. Here, for example, when the previous spreading is completed and the process proceeds to the next spreading, the inner frame 4 is raised by a predetermined width with respect to the outer frame 5, and the end portion of the piece of cloth A ₁ is worked by the previous spreading. Be careful not to collide with the piece of material spread on the table 1. As a control method at this time,
For example, the following can be adopted. That is, first, a reflection type photoelectric tube is installed at a predetermined position of the rebel machine main body 3, and the inner frame 4 is raised while detecting the unworn article that has been expanded by the unfolding until the last time. The method of stopping the rise of the inner frame 4 at the time when it no longer detects and moving to the current spreading, secondly, installing a light emitting tube and a power receiving tube at a predetermined position of the main body 3 of the paper spreading machine to emit light. The inner frame 4 is raised while the light emitted from the tube is shielded by the piece of cloth that has been spread by the previous stretch, and when the light is detected by the receiving tube, the rise of the inner frame 4 is stopped and Third, a method of storing the relationship between the number of revolutions of the screw shafts 27, 27 and the vertical movement width of the inner frame 4 in a computer, and controlling the vertical movement width of the inner frame 4 by the computer. Etc. Adopting the third method has an advantage that automation of spreading can be easily achieved.

Then, the copy positions of the guide rollers 45, ..., 45 with respect to the guide rails 46, 46 are leg portions 1b, 1b of the workbench 1.
Since the inner frame 4 is moved upward and the center of gravity position is high so that lateral shake or sideways tilt is likely to occur, the distance between the center of gravity position and the copying position is set. Will be kept particularly long. Therefore, even if the outer frame 5 slightly shakes sideways or tilts sideways, the lateral shake suppressing effect and the lateral tilt suppressing effect due to the copying position are immediately exhibited, and such lateral shake is effectively prevented and the vehicle travels. The stability is improved, and at the same time, sideways fall is reliably prevented and the danger is eliminated.

Further, since the supporting device 6 is located at a low position when the inner frame 4 is most lowered, the work of holding the roll-shaped piece of material A on the supporting device 6 can be performed more easily than in the conventional case. , The workability at that time is improved. further,
When one of the support bases 9 of the support device 6 is tilted as shown by the phantom line in FIG. 5, it becomes easy to collect the piece of fabric, and in this state, a new piece of fabric A is placed on the support base 9 and then When the support base 9 is erected, the work of holding the piece of cloth A by the support device 6 becomes easier to perform.

[Effect of device]

The present invention can be implemented as described above, and a slight lateral shake or lateral tilt of the outer frame can be immediately detected by copying the guide roller to the guide rails laid near the lower ends of the left and right legs of the workbench. Is suppressed by
It is possible to reliably prevent the traveling wheels of the spreading machine from falling off the workbench and the falling machine from falling sideways during the spreading operation. Such an effect stabilizes the running state even when the center of gravity position rises as the inner frame gradually rises as the retraction work progresses, and at the same time, the running wheels fall off due to lateral runout. It is also useful for improving the safety during the work of spreading, as it helps to prevent sideways falling.

[Brief description of drawings]

FIG. 1 is a partially cutaway plan view schematically showing a spreading machine according to an embodiment of the present invention, FIG. 2 is a longitudinal side view of the same, and FIG. 3 is a part for explaining a lifting drive device for an inner frame. Cutaway front view,
FIG. 4 is a principle diagram for explaining the drive system of the supporting device,
FIG. 5 is a principle view showing a configuration for raising and lowering the support base,
FIG. 6 is a principle diagram showing a drive system for traveling wheels. A, A ₁ ... Fabric, ₁ ... Workbench, 1a ... Workbench main body, 1b
... Legs, 3 ... Reversing machine body, 4 ... Inner frame, 5 ... Outer frame, 5a ... Plate, 6 ... Support device, 7 ... Feeding device, 8 ...
Cutter device, 40 ... Traveling wheel, 45 ... Guide roller, 4
6 ... Guide rail, 100 ... Lift drive device.

Claims (1)

[Scope of utility model registration request] 1. A workbench ( ₁ ) comprising a workbench main body (1a) to which a piece (A ₁ ) of fabric is extended and left and right legs (1b) for supporting the workbench main body (1a). , The spreader main body (3) and the guide rails (46) laid horizontally near the lower ends of the left and right legs (1b) of the workbench (1). 3) is a supporting device (6) for the roll-wound cloth (A), and a feeding device (7) for unwinding the cloth (A) supported by the supporting device (6) in a sheet shape, and A cutter device (8) for cutting the piece of material (A ₁ ) that has been disentangled by the feeding device (7),
An inner frame (4) equipped with a supporting device (6), a feeding device (7), and a cutter device (8), and a workbench main body (with a lower end positioned lower than the workbench main body (1a) ( An outer frame provided with a pair of plate bodies (5a) arranged on both sides sandwiching 1a)
(5) and the inner frame (4) are supported by the outer frame (5), and the inner frame (A ₁ ) has a height corresponding to the stacking height of the piece (A ₁ ) that is extended on the workbench body (1a). 4) Lifting drive device that lifts and lowers
(100), a traveling wheel (40) for advancing and retracting the outer frame (5) supported by the workbench main body (1a) along the workbench main body (1a), and a pair of outer wheels (5). Guide rollers provided on each of the plate bodies (5a) so as to be rotatable about the vertical axis and imitated on the side surface of each of the guide rails (46).
(45), and a retraction machine characterized by having.