JPH0362626B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to a rolling and guiding device for raw fabric in a spreading machine, and in particular, a device for folding and storing a traveling body that is reciprocated along a workbench and placed on a mounting table. This invention relates to an original fabric deferral and guide device for feeding out the original fabric onto a workbench and opening it as the traveling main body reciprocates.

[Conventional technology]

When cutting, sewing, etc. are performed on the rolled up fabric, the fabric, that is, the original fabric, is first placed on the workbench, and preliminary work such as folding and cutting to the required length is carried out. A spreading machine is generally used for such work.

Conventionally known as this type of spreading machine, the original fabric is stored in a folded state on a traveling body that is reciprocated with respect to a workbench, and as the traveling body moves back and forth, The original fabric stored in a folded state is continuously pulled out from one end in the longitudinal direction, and is unrolled onto a workbench.

FIG. 3 is a configuration diagram showing an outline of a conventional spreader. In the figure, numeral 11 is an elongated workbench, and numeral 12 is arranged on the upper part of this workbench 11. This is a traveling main body that is configured to be able to freely move back and forth in the A-B direction. On one side (hereinafter referred to as the rear part) of the traveling main body 12 in the moving direction, a mounting table 13 on which the original fabric 14 can be folded and stored is provided, and on the other side of the traveling main body 12 in the moving direction. (hereinafter referred to as the front part) includes a pair of front and rear unwind rolls 18 and 19 which are driven and rotated by a motor (not shown), and which are disposed below the rolls 18 and 19 to unwind the raw fabric 14 upward onto the workbench 11. A payout roll device is provided which includes a final stage deferral roll 20.

Reference numerals 15 and 16 denote a pair of upper and lower guide rolls that are disposed above the mounting table 13 and supported by the traveling body 12, and these guide rolls 15 and 16 are used to guide the portion of the original fabric 14 that is fed upward from the mounting table 13. The main body 12 slides into contact with both the front and back surfaces and runs the 14 portion of the original fabric.
Both of them are non-rotatable. 17 moves the original fabric 14 whose direction has been changed by the pair of upper and lower guide rolls 15 and 16 along a substantially horizontal plane in the upper part of the traveling main body 12, and then bends it downward until it reaches the delivery rolls 18 and 19. This is a group of intermediate rolls to be guided.

In the spreader with such a configuration, as the traveling main body 12 moves back and forth, the raw fabric 14 pulled upward from the mounting table 13 is turned to a forward position by a pair of upper and lower guide rolls 15 and 16. After that, it passes through the intermediate roll group 17 to the payout rolls 18 and 19, and is rolled out to a required length on the workbench 11 via the final rolling roll 20, and unfolded so as to be folded. still,
21 in FIG. 3 is a cutter.

[Problem to be solved by the invention]

In the conventional apparatus having the above-mentioned configuration, the following inconvenience occurs when the raw material 14 is fed out between the upper and lower pair of guide rolls 15 and 16 disposed above the mounting table 13. It was hot.

That is, when the traveling main body 12 travels forward as shown by arrow A in FIG.
Wind pressure generated in the space formed between the upper end and the guide rolls 15 and 16 in the direction of arrow C, which is opposite to the running direction A of the running body 12, is applied to the web 14a passing through the space. Working, the original fabric part 14a
As shown by the solid line in FIG. 4, it swells greatly toward the rear side, and when this bulge becomes severe, the swollen part 4a of the fabric is drawn in by the movement of the fabric 14, and as a result, as shown by the two-dot chain line, Then, it becomes entangled between the intermediate roll group 17 from above.

On the other hand, when the traveling main body 12 turns backward as shown by arrow B in FIG. As shown by the solid line in FIG. 5, the original fabric portion 14a swells forward to a large extent as shown by the solid line in FIG. As a result, as shown by the two-dot chain line in the figure, the intermediate roll group 17
It will be entangled from the bottom of the gap.

These entanglement phenomena occur particularly when the traveling body 12 is turned back, that is, when the traveling movement is switched. Since it cannot be rolled out on the street, it is necessary to stop the traveling body 12 and reset it, which significantly impedes the smooth progress of the unfolding operation and impedes the efficiency of the unfolding.

This invention was made in view of the above-mentioned circumstances, and aims to prevent the bulge of the original fabric and entanglement caused by the bulge, regardless of the direction of movement of the traveling body, and to facilitate the unfolding operation. It is an object of the present invention to provide an original fabric deferral guide device in a fabric spreading machine that can be used in a fabric spreading machine.

[Means to solve the problem]

In order to achieve the above object, the original fabric spreading guide device in the fabric spreading machine according to the present invention is provided with a traveling main body disposed above a workbench and configured to be able to reciprocate along the workbench in a moving direction. A loading table capable of folding and storing the original fabric is provided on one side, and on the other side in the moving direction of the traveling main body, the original fabric is fed out onto the workbench as the traveling main body moves. A feed-out roll device for opening the web is provided, and the upper part of the mounting table slides on both the front and back sides of the web portion that is fed upward from the mounting table so that the feeding direction of the web portion is directed in the moving direction of the traveling main body. a pair of upper and lower guide rolls that change the direction along the upper and lower guide rolls, and a group of intermediate rolls that move and guide the raw material that is redirected and fed out by the pair of upper and lower guide rolls to the feed roll device. In the original fabric deferral guide device in the machine, the moving direction of the traveling body is switched so that the upper guide roll of the pair of upper and lower guide rolls is always located on the rear side of the lower guide roll in the moving direction of the traveling body. Along with this, the structure is configured to be able to swing back and forth around the lower guide roll, and each of these pair of upper and lower guide rolls has a part of the original material from the above-mentioned mounting base to between the pair of upper and lower guide rolls of the traveling main body. An entanglement prevention member that prevents the vehicle from expanding beyond a certain level toward the rear in the direction of movement is attached so that it can be selectively switched to an entanglement prevention position when the direction of movement of the traveling body is changed.

[Effect]

According to the original fabric deferral guide device having the above configuration,
Entanglement prevention members, each attached to a pair of upper and lower guide rolls placed above the stacking table that folds and stores the original fabric, selectively adopt an entanglement prevention posture as the moving direction of the traveling body changes. Regardless of the moving direction of the traveling body, the wind pressure during traveling will cause the unreeled web portion to swell to the rear in the moving direction beyond a certain level, and the bulging original web portion will Entanglement between roll groups can be reliably prevented.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of the original fabric deferral guide device in a fabric spreading machine according to the present invention will be described in detail with reference to FIGS. 1 and 2.

FIGS. 1 and 2 are configuration diagrams showing an outline of the deferred support device to which this embodiment is applied for each running state, and in these FIGS. 1 and 2,
Components that are the same or corresponding to those of the conventional example shown in FIG. 3 are given the same reference numerals, and detailed explanation thereof will be omitted.

In this embodiment device, a pair of upper and lower guide rolls 15 and 16 arranged above the mounting table 13 are used.
Among them, the upper guide roll 15 has one end of an entanglement prevention member 21 which also serves as a material movement guide member and extends forward along the lower surface of the material 14 to be fed out toward the next intermediate roll group 17. Further, one end of an entanglement prevention member 22 which extends rearward and also serves as a movement guide is fixed to the lower guide roll 16, respectively.

More specifically, each of the entanglement prevention members 21 and 22 is made of, for example, a lightweight and thin plate-like material such as a steel plate or a thin aluminum plate, or a large number of thin steel rods or aluminum rods arranged in parallel as necessary. Further, the upper and lower guide rolls 15 and 16 are integrally connected at both ends in the longitudinal direction by short connecting rods 23 and 23, and the upper and lower guide rolls 15 and 16 are connected together by short connecting rods 23 and 23 at both ends in the longitudinal direction. A pair of support frames 24, for example in a Y-shape, are erected on the
Both ends of the lower guide roll 16 in the longitudinal direction are supported over a period of 24 hours, and as a result, the upper guide roll 16 is moved around the lower guide roll 16 by the reaction force caused by switching the moving direction of the traveling body 12. The roll 15 side is configured to swing back and forth so that the upper guide roll 15 is always located on the rear side with respect to the lower guide roll 16 in the moving direction of the traveling body 12.

In the spreader having such a configuration, as in the conventional example, the unwinding end of the raw web 14 folded and stored on the rear mounting table 13 of the traveling main body 12 is first placed under the lower entanglement prevention member 22. The intermediate roll group 17 is passed from the side between the pair of upper and lower guide rolls 15 and 16 and above the upper entanglement prevention member 21.
While pulling it out to the side, both feeding rolls 18,
19 and a deferral roll 20. By reciprocating the traveling main body 12 along the workbench 11 in this state, the raw fabric 14 on the mounting table 13 is sequentially fed out, folded to a required length on the workbench 11, and unfolded. The details of this unfolding operation are as follows.

That is, when moving the traveling main body 12 in the direction of arrow A in FIG. 1, as shown in the figure,
The upper guide roll 15 tilts backward by swinging around the lower guide roll 16, and in this state,
The lower entanglement prevention member 22 is tilted backward and downward, and is positioned so as to cover the rear side of the web 14 that is being pulled upward from the mounting table 13, and the upper entanglement prevention member 21 is in a substantially horizontal position. It will be raised to.

Here, wind pressure in the direction of arrow C is applied to the original fabric portion 14a that is pulled out from the mounting table 13 between the pair of upper and lower guide rolls 15 and 16 and extends upward.
As in the case of the conventional example, the original fabric portion 14a is inflated rearward, but at this time, the lower entanglement prevention member 22 integrated with the lower guide roll 16 is positioned on the rear side thereof. Therefore, the original fabric portion 14a is attached to the lower entanglement prevention member 22.
The bulge is limited to just enough to lightly touch the underside of the . Therefore, there is no fear that the feeding of the web 14 will be hindered, and the wind pressure in the direction of arrow C will flow backward from both left and right ends of the web 14, unlike in the conventional case. It is possible to prevent the bulging original fabric portion from being entangled between the intermediate roll group 17 from above.

On the other hand, when the traveling body 12 turns around in the direction of arrow B in FIG. 15
is tilted forward by swinging around the lower guide roll 16, the lower entanglement prevention member 22 rises slightly, and the upper entanglement prevention member 21 is tilted forward and downward. Therefore, the upper entanglement prevention member 22 comes to cover the front side of the raw fabric 14 as it is being drawn out.

Here, wind pressure in the direction of arrow D is applied to the web portion 14a that is pulled out from above the mounting table 13 between the pair of upper and lower guide rolls 15, 16 and extends upward, causing the web portion 14a to move forward. However, at this time, since the upper entanglement prevention member 21 integrated with the upper guide roll 15 is located on the front side, the original fabric portion 14 tries to inflate forward. The bulge is limited to just enough to lightly contact the lower surface of the upper entanglement prevention member 21. Therefore, there is no fear that the feeding of the web 14 will be hindered, and the wind pressure in the direction of the arrow D will flow backward from both left and right ends of the web 14, unlike in the conventional case. In addition, it is possible to prevent the bulging portion from getting entangled between the intermediate roll groups 17 from below.

〔Effect of the invention〕

As described in detail above, according to the present invention, an entanglement prevention member is attached to each of the pair of upper and lower guide rolls that change the feeding direction of the original fabric folded and stored on the mounting table of the traveling main body. As the traveling direction of the main body changes,
Since the structure is configured so that the posture can be switched to prevent entanglement as an alternative, the material portion from the mounting table of the traveling body to between the pair of upper and lower guide rolls is prevented from shifting due to the wind pressure generated when the traveling body moves back and forth. It is possible to reliably prevent the roll from bulging largely toward the rear side in the direction and from getting the bulging portion entangled in the intermediate roll group. This makes it possible to facilitate the opening work and improve the efficiency of the spreading work.

In addition, a simple structure is sufficient in that the entanglement prevention member is attached to a pair of guide rolls, and a spreading machine that provides the above-mentioned effects can be provided at a low cost.

[Brief explanation of drawings]

FIGS. 1 and 2 are block diagrams showing an overview of one embodiment of the original fabric deferral and guide device in the fabric spreading machine according to the present invention for each running state, and FIG. 3 is a schematic diagram of a conventional fabric spreading machine. The configuration diagrams shown in Figs. 4 and 5
The figure is an explanatory diagram showing an outline of the deferral guide device in the conventional example same as above for each running state. 11...Workbench, 12...Traveling body, 13...
Rear mounting table, 14... original fabric, 15, 16... upper and lower entanglement prevention members.

Claims (1)

[Claims] 1. A mounting table capable of folding and storing the original fabric is provided on one side in the moving direction of the traveling body, which is arranged on the upper part of the workbench and is configured to be able to reciprocate along the workbench, and A feed-out roll device is provided on the other side in the moving direction to feed and unroll the original fabric onto the work table as the traveling main body moves, and an upper part of the placement table is provided with a feed-out roll device that feeds the raw fabric onto the work table and unfolds it as the traveling main body moves. A pair of upper and lower guide rolls slidingly contact both the front and back sides of the web part being fed upward to change the feeding direction of the web part to a direction along the moving direction of the traveling body, and the direction is changed by this pair of upper and lower guide rolls. In a roll-rolling and guiding device for a web spreading machine, the roll-rolling device includes a group of intermediate rolls for moving and guiding the roll-out portion of the roll to the feed-out roll device. The structure is configured to be able to swing back and forth around the lower guide roll as the traveling body changes the moving direction so that the traveling body is always positioned on the rear side in the moving direction of the traveling body with respect to the guide roll. Each of the pair of guide rolls is provided with an entanglement prevention member that prevents the original fabric portion from expanding beyond a certain level in the direction of movement of the traveling main body from the mounting base to between the pair of upper and lower guide rolls.
What is claimed is: 1. A raw fabric spreading guide device in a fabric spreading machine, characterized in that the device is installed so that it can be selectively switched to an entanglement prevention posture as the direction of movement of a traveling body is changed.