JPH07106813B2 - Fabric release method and release core - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a discharging method for improving the dimensional stability of a cloth before cutting and a discharging method for winding the cloth to be discharged into a roll shape. Reuse core.

[Conventional technology]

For example, in a sewing factory, the fabric is cut prior to cutting the fabric in order to improve the dimensional stability after removing the vertical and horizontal stretch deformation that is applied to the fabric in the previous processing process such as the dyeing process and the stress caused by stacking the fabric. Then, the release process is performed.

In this regard, conventionally, as shown in FIG. 12, the dough 45 wound in a roll is continuously fed to the sponge 46 to make the dough 45
Is exposed to steam, heat and mechanical vibrations while passing through the sponge 46 to relieve stress. Further Sponge 46
The dough 47 dried at the final stage is folded and laminated on a base plate 48 having a constant width so that tension is not applied, and in this state, the laminated dough 49 is left for a long time to be discharged. Was there.

[Problems to be Solved by the Invention]

In the above-mentioned release form, the stress applied to the dough can be removed when the dough is rolled in the storage process or the previous process step, but the folded part of the laminated dough can be folded as a new stress. The biggest difficulty was in the attachment. In other words, even if the fabric is relaxed and contracted by the sponge to release the stress, there is a problem in the release form of the fabric thereafter.

In order to avoid the above-mentioned folding, it is conceivable to cut the dough immediately after being treated with the sponge, but the dough just after the treatment is not completely relaxed and contracted. Therefore, when cutting and sewing are performed as they are, the size of the sewn parts is changed and a large number of product defects occur. For these reasons, bunting to calm the fabric is indispensable as a pretreatment for cutting. It is said that the longer the repulsion time is, the better it is. However, in the related art, the folding is also strong.

In addition, the dough laminated on the base plate has a larger storage space than roll-wound dough, and it requires extra labor for transportation within the factory or transportation between factories, and the fabric for cutting is stretched. It is also disadvantageous in that it is inconvenient to handle, such as the need to rewind the laminated fabric into a roll state at times.

Therefore, an object of the present invention is to eliminate the addition of new stress to the fabric at the time of release, improve the dimensional stability of the fabric thereafter, and eliminate the product defects based on the relaxation shrinkage phenomenon to improve the productivity. is there.

Another object of the present invention is to discharge the material in a more compact form as compared with the laminated fabric, and to optimize the storage, transportation, and subsequent handling.

[Means for Solving the Problems]

In the present invention, the stress-released fabric is wound into a roll with a discharge core and discharged, but at this time, the core is reduced in diameter to relax the fabric roll. It is to release the take-up tension force applied to the dough roll when the roll is wound.

That is, according to the discharge method of the present invention, the stress release step 2 of releasing the stress of the roll-wound original fabric 1a with the sponger 5 and the stress-released fabric 1b are wound with the release core 6 in a roll shape. The dough winding step 3 and the core 6 are subjected to a diameter reduction operation to relax the dough roll 1c wound around the core 6 and to release the take-up tension force applied to the dough roll 1c in the winding step 3 described above. After the process 4 and the release, the release is performed. Next, both ends of the core are supported by the gantry 7, and the lower half peripheral surface of the dough roll 1c in a relaxed state is held by the supporting member 9 provided on the gantry 7 to lift and support the dough roll 1c over the entire width of the dough roll 1c. The roll 1c is released in a completely relaxed state.

The repulsion core of the present invention has a main shaft 11 and a roll body 15 divided in the winding direction, a plurality of core divided bodies 12 arranged around the main shaft 11, and an inner surface of each core divided body 12. Is fixed to, the joint wall 16 that connects the core divided body 12 and the main shaft 11, and the core expansion / contraction member 13 that is provided in each core divided body 12 and that relatively displaces the core divided body 12 inward and outward in the radial direction, And a spring (14) for biasing the core divided body (12) toward the radial contraction direction.

The core expansion / contraction member 13 is provided between the core division body 12 in which the joint wall 16 is fixed to the main shaft 11 and the core division body 12 in which the joint wall 16 is slidably connected to the main shaft 11 in the radial direction. .

The core expansion / contraction member 13 includes a screw shaft 23 and a nut 24 engaged with the screw shaft 23.
Are used as adjusting elements, and one of the nuts 24 of the screw shaft 23 is supported by the one core divided body 12 so as not to move in the axial direction.

Further, another discharge core of the present invention relates to a core expansion / contraction member 13, one end of which is in contact with the inner surface of the one core divided body 12, and an intermediate portion of which is swingably supported by a main shaft 11. A plurality of diameter expanding levers 37, a link lever 38 connected to the other end of the diameter expanding lever 37, and a joint wall 16 fixed to the main shaft 11 are supported to push and pull the link bar 38 along the main shaft 11. Including a screw shaft 39 and a nut 40 for screwing the screw shaft 39,
The nut 40 is arranged at the side end opening of the core divided body 12. [Operation] Since the cloth 1b is wound in a roll shape and discharged, the folding of the cloth which cannot be avoided by the conventional discharge method is performed. You can eliminate habits.

The dough roll 1c can release the tension force at the time of winding by performing the diameter reduction operation of the core 6, so that new stress is not applied to the dough 1b in spite of being wound into a roll shape.

At the time of discharging, since the core 6 is supported by the gantry 7 and the lower half peripheral surface of the loose material roll 1c is lifted and supported by the supporting member 9, new stress is not applied to the weighted material roll 1c of the material itself.

Since the fabric 1b after releasing the stress is wound into a roll and released, compared to the case where the fabric is released in a laminated state,
The form when released can be made compact.

〔The invention's effect〕

Therefore, according to the present invention, it is possible to improve the dimensional stability of the fabric after that, by eliminating new stress such as crease and winding distortion upon the fabric when it is released. This allows
For example, in a series of work processes from cutting to sewing, it is possible to prevent the occurrence of product defects due to relaxation shrinkage, eliminate product defects due to instability of the fabric dimensions, and improve productivity.

Compared with laminated fabric, the fabric can be discharged in a compact state, so not only can the storage space be kept small, but the fabric can be moved to the next process, and the transportation work between factories can be performed efficiently with less effort. The handling can be simplified. Moreover, when spreading is performed in the cutting process, the core 6 can be expanded to immediately load the fabric roll 1c after the release into the spreading machine, and a series of operations from the release to the cutting can be efficiently performed. You can do it.

[First Embodiment] FIGS. 1 to 8 show a first embodiment of the present invention.

In FIG. 1, reference numeral 1a denotes a roll-wound original fabric before the release process. In order to release various stresses applied to the original fabric 1a and improve the dimensional stability thereafter, the stress release process 2, the fabric winding process 3, and the roll relaxation process 4 are sequentially performed and released. I do.

In the stress releasing step 2, the sponger 5 causes the cloth to undergo relaxation contraction, and the stress potentially contained in the cloth is released. For details, the original fabric 1a that is sent continuously.
Give steam, heat and mechanical vibration to the original fabric 1a
Positively causes relaxation contraction while passing through the sponge 5. By this pretreatment, the raw fabric 1a shrinks to almost the same state as before being subjected to stress, but there is still some room for shrinkage.

The cloth 1b whose stress is released by the sponge 5 is wound around the discharge core 6 at the end of the sponger 5 in a roll shape. In the dough winding step 3, the dough 1b is wound with a tension force as small as possible within a range where slack does not occur. However, the tension is not zero, so fabric 1b
Is rolled with the tension force applied.

In order to release the tension force, the diameter of the core 6 is immediately reduced after the winding is finished to loosen the dough roll 1c from the inside. After passing through the roll loosening step 4, the fabric roll 1c together with the core 6 is allowed to stand on the pedestal 7 and released for a predetermined time.

In the discharged state, both ends of the core 6 are supported by the support frames 8 provided on the frame 7. The lower half peripheral surface of the cloth roll 1c in a relaxed state is lifted and supported by the supporting member 9 provided on the frame 7 over the entire width of the roll. In this way, the weight of the core 6 is supported by the support frame 8, and the dough roll 1c is further supported by the support member 9
In the state of being lifted and supported by, the core weight and the weight of the cloth itself can be prevented from acting on the cloth layer.

The dough roll 1c that has been discharged is sent to a cutting process, where it is spread by a spreading machine, and cut and laminated to a predetermined size. At this time, the core 6 is returned to the state before the diameter reduction, supports the material roll 1c in a non-idling manner, and makes the feeding rotation thereof smooth and stable.

Next, a detailed structure of the core 6 and the support member 9 applied to the above-mentioned discharge processing will be described.

2 to 4, the core 6 is a spindle that is long in the left and right directions.
11, a pair of core divided bodies 12 divided into two in the circumferential direction, a core expansion / contraction member 13 provided between the divided bodies 12 and 12, and a diameter reducing spring 14.
Etc.

The pair of core divided bodies 12 each include a roll body 15 formed in a gutter shape having a semicircular cross section, and a pair of joint walls 16 welded to both ends of the inner surface of the roll body 15 with respect to the spindle 11. They are supported so that they can be displaced relative to each other inward and outward in the radial direction.

Specifically, as shown in FIG. 3 and FIG. 4, the core divided body 12 on the upper side in the drawing is connected to the main shaft 11 via the joint wall 16.
The joint wall 16 of the lower core divided body 12 is adjacent to the outside of the former joint wall 16 by welding. And the outer joint wall 16
Is provided with a pair of vertically long slide grooves 17 and a U-shaped relief groove 18 for avoiding buffering with the main shaft 11, and a bolt 19 screwed into the inner joint wall 16 is used to insert the lower split body through each slide groove 17. 12
Is supported so that it can slide up and down. Due to this sliding structure, the upper and lower core divided bodies 12 and 12 are each roll body 15
Can be displaced between a winding posture in which the rolls are vertically separated (state in FIG. 4) and a relaxing posture in which opposite edges of both roll bodies 15 are close to each other (state in FIG. 5).

In order to perform displacement operation of the upper and lower core divided bodies 12, 12, a bracket 21 is extended to the upper end of the lower joint wall 16, and a core expansion / contraction member 13 is provided between the bracket 21 and the upper roll body 15. . The core expansion / contraction member 13 is fixed to the receiving plate 22 screwed to the bracket 21 and the upper roll body 15, and is fixed to the main shaft.
A screw shaft 23 extending toward 11 and a nut 24 screwed into the screw shaft 23. The receiving plate 22 is provided with an insertion hole 25 having a diameter slightly larger than that of the screw shaft 23.

The nut 24 is provided so as to face the side end opening of the core divided body 12, and the screwing operation can be easily performed even when the dough is wound around the outer surface of the core 6 as shown in FIG. . When the nut 24 is positioned at the lower end of the screw shaft 23, the receiving plate 22 is pushed down by the nut 24 and moves away from the upper roll body 15, so that the core 6 is in the winding posture. When the nut 24 is operated in reverse, the receiving plate 22 approaches the upper roll plate 15, so that the core 6 is in a relaxed posture.

A reducing spring 14 is provided between the main shaft 11 and the lower roll body 15 to assist the upper and lower roll bodies 15 in moving closer to each other when the core 6 is in the relaxed posture. As shown in FIGS. 3 and 6, this spring 14 is a tension coil spring, and a wing nut 26 fixed to the inner surface of the lower roll body 15 by winding the middle part thereof around the upper half peripheral surface of the main shaft 11. Hook the hooks on both ends to attach it. Even when the core 6 is completely relaxed, the spring 14 urges the upper and lower roll bodies 15 toward each other.

In FIG. 7 and FIG. 8, the support member 9 includes a pair of suspension rods 28 arranged in parallel with the core 6, a total of four rod brackets 29 for receiving and supporting each suspension rod 28, and a space between both suspension rods 28. A holding sheet 30 made of cloth stretched over the upper and lower sides of the dough roll 1c, which is placed on the support frame 8 of the gantry 7, is lifted and supported by the holding sheet 30 over its entire width. The rod bracket 29 is a bracket main body 31 that is hooked on the support frame 8.
And a V-shaped receiving frame 32 fixed to its lower end,
A suspension rod with a pair of receiving frames 32 facing each other in the longitudinal direction of the core 6.
Support 28.

The holding sheet 30 is arranged so as to be circumscribed on the lower half peripheral surface of the dough roll 1c, and is wound around one of the suspension rods 28 so that the lifting amount is appropriate according to the diameter and the amount of relaxation of the dough roll 1c. To be In order to maintain this proper lifted state, a plurality of pin holes 33 are provided along the side end peripheral surface of the suspension rod 28, and the stopper pin 34 can be inserted and removed and engaged therewith. The stopper pin 34 is received by the side end of the receiving frame 32 to prevent the suspension rod 28 from rotating.

The gantry 7 is at the front and rear ends of the center frame 7a supported by casters,
The support frame 8 is provided so as to project vertically in multiple stages, and a large number of dough rolls 1c can be placed on it. On the upper surface of each support frame 8, a regulation frame 35 that stands up against the lateral movement of the spindle 11 is erected. According to this gantry 7, it is possible to transfer the dough roll 1c to the cutting step or carry it to a remote factory while keeping the dough roll 1c placed.

Second Embodiment FIGS. 9 to 11 show a second embodiment in which the core expansion / contraction member 13 of the discharge core according to the present invention is changed.

In this case, the core expansion / contraction member 13 is swingably supported by the main shaft 11 so that a pair of left and right expanding levers 37, a link bar 38 connecting the levers 37, and a joint wall 16 integral with the upper roll body 15 are provided.
And a screw shaft 39 supported by the flange 43 for pushing and pulling the link bar 38 and a nut 40 for screwing the screw shaft 39.
Consists of.

The diametrical expansion levers 37 are arranged at two locations on the inner surface of the core divided body 12 near the left and right ends, and as shown in FIG. Has been done. A roll 42 is rotatably supported on the lower end of the diameter expansion lever 37. The roll 42 comes into contact with the inner surface of the lower roll body 15 to expand the roll body 15 against the tension of the diameter reducing spring 14.

As shown in FIG. 1, in the winding posture in which the upper and lower roll bodies 15 are vertically separated from each other, the diameter expansion lever 37 stands up at a large angle with respect to the main shaft 11. When the nut 40 is operated to move the screw shaft 39 inward from the joint wall 16 from this state, the diameter expansion lever 37 swings toward the side closer to the main shaft 11 and loosens the upper and lower roll bodies 15. You can In order to absorb the operation at this time, at least one of the connecting pin holes of the diameter expanding lever 37 and the link bar 38 is formed as a long hole.

According to the core 6 configured as described above, the upper and lower roll bodies can be simply operated by screwing the nut 40 provided on one side thereof.
The 15 can be uniformly expanded and contracted in the longitudinal direction, and the core diameter can be quickly and accurately restored when the dough roll 1c is loosened or cut.

[Another embodiment]

In the above embodiment, the core 6 is composed of the two core divided bodies 12, but the core divided body 12 may be divided into three or more.
Each core divided body 12 does not necessarily have to be divided evenly.
The core 6 does not necessarily have to have a circular roll shape, and may have two or more core divided bodies assembled in a skein shape.

The support member 9 can be modified so that the holding sheet 30 is supported by one suspension rod 28. The support member 9 may be configured as a gutter-shaped frame, and the sheet need not necessarily be a lifting member. The holding sheet 30 may be formed of a plastic sheet, a net, paper, or the like.

The core 6 can be used as a winding core when storing the cloth in a roll-wound state other than when the cloth is discharged. For example, the core 6 can be applied to the winding core of the cloth after inspection to reduce stress applied to the cloth.

[Brief description of drawings]

1 to 8 show a first embodiment according to the present invention, FIG. 1 is an explanatory view showing an outline of a discharging method, FIG. 2 is a front view of a discharging core, and FIG. Is a vertical sectional front view of a main part of the discharge core, FIG. 4 is a view taken along the line AA in FIG. 3, and FIG. 5 is a side view equivalent to FIG. 6 is a cross-sectional view taken along the line BB in FIG. 3, FIG. 7 is a vertical sectional side view showing a rebound state, and FIG. 8 is a partially cutaway front view showing the rebound state. 9 to 11 show a second embodiment of the discharge core according to the present invention, FIG. 9 is a front view of the discharge core, and FIG. 10 is a sectional view taken along the line CC in FIG. FIG. 11 is a vertical sectional front view of the main part of the discharge core. FIG. 12 is an explanatory view showing a conventional discharge mode. 1a: original fabric, 1b: fabric after stress release, 1c: fabric roll, 2 ... stress release process, 3 ... fabric winding process, 4 ... roll relaxation process, 5 ... spongeer, 6 …… Core, 7 …… Stand, 9 …… Supporting member, 12 …… Core divided body, 13 …… Core expansion and contraction member, 30 …… Holding sheet.

Claims (3)

[Claims] 1. A stress releasing step (2) of releasing stress of a roll-wound original fabric (1a) with a sponger (5), and a core (1) for releasing the stress-released fabric (1b) ( 6)
In the dough winding step (3), the core (6) is reduced in diameter to loosen the dough roll (1c), and the dough roll (3) is wound in the winding step (3). After the roll loosening step (4) for releasing the winding tension force applied to 1c), both ends of the core (6) are supported by the gantry (7) and the lower half circumference of the dough roll (1c) in a relaxed state. The surface of the dough roll (1c) is lifted and supported by the support member (9) provided on the gantry (7) over the entire width of the dough roll (1c), and the dough roll (1c) is released in the relaxed state. How to release woven fabric. 2. A fabric (1b) which has been subjected to stress release treatment.
A winding core for winding up a roll, which has a main shaft (11) and a roll body (15) divided in the winding direction, and surrounds the main shaft (11). A plurality of core divided bodies (12), a joint wall (16) fixed to the inner surface of each core divided body (12) and connecting the core divided body (12) to the main shaft (11), A core expansion / contraction member (13) that is provided between the core divided bodies (12) and relatively displaces the core divided bodies (12) in and out in the radial direction, and urges the core divided bodies (12) toward the radial contraction direction. A core split body (12) having a spring (14) and a joint wall (16) fixed to the spindle (11), and the joint wall (16) sliding in the radial direction with respect to the spindle (11). A core expansion / contraction member (13) is provided between the core divided body (12) that is freely connected, and the core expansion / contraction member (13) engages the screw shaft (23) and the nut (24). And the adjusting elements, and the screw shaft (2
A discharge core in which one of the nut (24) and the nut (24) is axially immovably supported by the one core split body (12). 3. A fabric (1b) which has been subjected to stress release treatment.
A winding core for winding up a roll, which has a main shaft (11) and a roll body (15) divided in the winding direction, and surrounds the main shaft (11). A plurality of core divided bodies (12), a joint wall (16) fixed to the inner surface of each core divided body (12) and connecting the core divided body (12) to the main shaft (11), A core expansion / contraction member (13) that is provided between the core divided bodies (12) and relatively displaces the core divided bodies (12) in and out in the radial direction, and urges the core divided bodies (12) toward the radial contraction direction. A core split body (12) having a spring (14) and a joint wall (16) fixed to the spindle (11), and the joint wall (16) sliding in the radial direction with respect to the spindle (11). A core expansion and contraction member (13) is provided between the core expansion and contraction member (12) which is freely connected, and the core expansion and contraction member (13) has an inner surface of the one core divisional member (12) at one end. A plurality of diameter-expanding levers (37) that are in contact with each other and whose middle part is swingably supported by the main shaft (11), and a link lever (38) connected to the other end of the diameter-expanding lever (37). ,
A screw shaft (39) for pushing and pulling the link bar (38) along the main shaft (11) supported by a joint wall (16) fixed to the main shaft (11), and a screw shaft (39) for screwing operation Nut (4
0) and the nut (40) is arranged in the side end opening of the core split body (12).