JPS644870Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) This invention relates to a tenter device for mercerizing fabric, which immerses the fabric in a caustic soda aqueous solution.
The fabric is stretched around a large number of cylinders and transferred while being tensioned in the warp direction, and is then used for stabilization by lowering the caustic soda concentration in the fabric and reducing the shrinkage force.

(Prior Art) As shown in FIG. 3, a tenter device used in mercerizing fabric includes an entrance mangle 1, an entrance guide roller 2, a tenter 3, an exit guide roller 4, a dicer roller 5, and an expander roller. 6 and outlet mangle 7 are arranged in order, and a plurality of cleaning liquid showering devices 8 are arranged above the tenter rail 3a of the tenter 3, and a suction type dehydrating device 9 is installed below the tenter rail 3a, and a plurality of cleaning liquid showering devices 8 are arranged below the tenter rail 3a. The latter suction type dewatering device 9 is installed so as to be located slightly on the exit side, and while the fabric F impregnated with the caustic soda aqueous solution and taut is transferred in front of the inlet mangle 1 (left side in the figure) using the tenter 3, The cleaning liquid is injected from above, and the cleaning liquid is sucked downward by the liquid removing device 9, so that the cleaning liquid penetrates the fabric F perpendicularly to clean the fabric F. Furthermore, the exit side guide roller 4, dancer roller 5, and expander roller It is known that the liquid is drawn out through an outlet mangle 7 through a tube 6 and sent to a washing tank (not shown). However, the above-mentioned suction type deliquid device 9
4 comes into contact with the lower surface of the fabric F, which is being transported with both sides held by the tenter chain, so in order to prevent both left and right ends of the liquid removing device 9 from coming into contact with the tenter rail 3a and the tenter chain, it is shown in FIG. As shown in FIG. 5, the dewatering device 9 can be formed to be horizontally rotatable, and the dewatering device 9 can be rotated in response to changes in the setting of the spacing between the left and right tenter rails 3a, 3a, or a short dewatering device can be formed as shown in FIG. 9a, 9b, 9c are arranged side by side, and the dewatering devices 9a, 9c on both sides are formed to be slidable in the width direction, and the left and right dewatering devices 9a, 9c are moved according to the interval between the tenter rails 3a, 3a. Was.

(Problem to be solved by the invention) The suction type deliquor devices 9, 9a, 9b, 9c are fabric
does not contact within a range of approximately 20 to 30 mm between both ears of fabric F, and while both ears of fabric F are held and transferred by tenter chains, the central part is transferred by the above-mentioned dewatering devices 9 and 9a, The suction resistance due to 9b and 9c is large,
This suction resistance continues to act even after both ears of the fabric F are removed from the tenter chain. Moreover, the drive roller constituting the exit mangle 7 and the upper roller pressed against its upper surface are both parallel rollers with substantially uniform diameters, so that the tensile force that nips and pulls the fabric is substantially applied to each part in the width direction. Therefore, there was a problem in that the weft threads of the fabric F were curved toward the lag side, resulting in curved stitches. As shown in Fig. 5, when short deliquor devices 9a, 9b, and 9c are arranged side by side, an overlapping part will occur and the suction resistance at the overlapping part will increase, so the above-mentioned eye curvature will become even greater. Ta.

This invention attempts to prevent the occurrence of the above-mentioned bending by pulling the center part of the fabric more strongly than the both heel parts using the exit mangle.

(Means for solving the problem) Compare the tensile force of the fabric at the center in the width direction of the nip between the drive roller and the upper roller of the exit mangle with the tensile forces at both sides to determine the suction resistance of the suction type deliquoring device. Set it large enough to almost cancel out the delay in the center of the fabric due to force.

(Function) When a fabric impregnated with an aqueous solution of caustic soda is placed and transferred in the same manner as in the past, the caustic soda concentration of the fabric is reduced by the shear of the cleaning liquid and the suction of the suction-type deliquid device, and then the fabric is pulled out by the exit mangle. and sent to the next process. However,
The exit mangle pulls the center part of the fabric more strongly than both sides to cancel the delay in the center part of the fabric due to the suction resistance of the suction type deliquor, so that the fabric that has been curved to the lag side due to the suction resistance is removed. When the weft thread passes through the mangle, it is modified and becomes almost straight.

(Example) FIG. 1 shows an example of the exit mangle 10, and the third
It is provided at the location of the exit mangle 7 in the figure. In FIG. 1, reference numeral 11 denotes a drive roller with a uniform diameter, supported by a bearing 12, and connected to a drive motor (not shown) via a drive pulley 13 at one end.

Upper roller 14 in contact with the upper surface of drive roller 11
is a cylindrical tube 15 with a rubber layer 15a formed on its outer surface.
It has a large diameter part 16a with a predetermined width in the center and is inserted into the cylindrical pipe 15, and the large diameter part 16a is inserted into the cylindrical pipe 15 at the center.
and a central axis 16 fixed at point a. An inner bearing case 17 and an outer bearing case 18, which are movable up and down, are respectively attached to the journal 16b of the central shaft 16 via self-aligning bearings (not shown). The inner bearing case 16 is connected to a frame (not shown).
Main diaphragm type pressurizing device 19 fixed to
A sub-diaphragm type pressurizing device 22 is connected with a pin to the outer end of a horizontal lever 21 which is connected to the output rod 19a of the output rod 19a via a link 20 and is swingably connected to this link 20 with a pin. The outer bearing case 18 is connected to the output rod 22a of the device 22 via a link 23. On the other hand, the inner end of the horizontal lever 21 is connected to a cylindrical shaft 15b fixed to the end of the cylindrical tube 15 via a bearing and a bearing case 24.

In the above structure, when the drive roller 11 is driven and compressed air is sent to the main diaphragm type pressure device 19 to push down the output rod 19a, the large diameter portion 16a of the central shaft 16 of the upper roller 14 moves into the cylindrical tube 15.
The drive roller 11 is pressed into contact with the drive roller 11 through the drive roller 11, and the drive roller 11 curves downward in a convex shape as shown in the figure, and the cylindrical tube 15 curves along the upper surface of the drive roller 11. Then, when compressed air is sent to the sub-diaphragm type pressurizing device 22 to energize the output rod 22a, the sub-diaphragm pressurizing device 22 moves up and down due to the reaction force, and the horizontal lever 2
The inner end of 1 moves up and down to connect the drive roller 11 and the cylindrical tube 1.
5 to change the distribution of nip pressure. Therefore, by changing the compressed air pressure, the distribution of the nip pressure can be adjusted and the tensile force of the fabric F can be increased by making the center part stronger than the both sides. In this embodiment, since the distribution of the nip pressure can be easily adjusted, the setting of the tensile force can be changed depending on the type of fabric F.

Instead of the above-mentioned upper roller 14 or drive roller 11, a so-called crown roller 25 is used, as shown in FIG. In this case, the structure becomes simple.

(Effect of the device) This device is designed to offset the delay in the center of the fabric caused by the suction resistance of the suction type deliquor by pulling the center of the fabric more strongly than both sides. The weft threads of the fabric passing through the process become almost straight, the curvature of the stitches is corrected, and the quality of the mercerized fabric is improved.

[Brief explanation of drawings]

Figure 1 is a front view of the main parts of the embodiment of this invention, Figure 2 is a front view of a modified example, Figure 3 is a side view of the tenter device, and Figures 4 and 5 are of the suction type deliquor device. FIG. 1...Entrance Mangle, 3...Tenta, 3a...
Tenter rail, 5... Dicer roller, 6... Expander roller, 7, 10... Exit mangle, 8
...Cleaning liquid injection device, 9...Suction deliquid device, 11
... Drive roller, 14 ... Upper roller, 15 ...
Cylindrical tube, 16... Central axis, 16a... Large diameter part, 2
5...Crown roller.

Claims (1)

[Scope of claims for utility model registration] (1) A cleaning liquid shower device above the tenter rail,
In addition, a suction type deliquid device was installed at the bottom so that the latter was located on the advancing side of the fabric, and an exit mangle consisting of a drive roller and an upper roller pressed against the upper surface of the tenter rail was installed behind the exit of the tenter rail. In a tenter device for fabric mercerization processing, the suction resistance force of the suction type deliquoring device is determined by comparing the tensile force of the fabric at the center in the width direction of the nip between the driving roller and the upper roller of the mangle with the tensile force at both sides. A tenter device for mercerizing fabric, characterized in that the delay is set large enough to almost cancel out the delay at the center of the fabric caused by the mercerization process. (2) The driving rollers of the exit mangle are parallel rollers of substantially uniform diameter, and the upper roller is connected to a cylindrical tube and a central shaft inserted through the cylindrical tube and fixed to the cylindrical tube at the central large diameter part. A load is applied to both ends of the central axis so that the nip pressure between the upper roller and the drive roller is greater at the center than at both sides. Tenter device for mercerization processing. (3) The tenter device for mercerizing fabric according to claim 1, wherein at least one of the drive roller and the upper roller of the exit mangle is a crown roller.