JPH04100967A - Continuous drying apparatus for dyed specimen cloth - Google Patents

Abstract

PURPOSE:To prepare an accurate specimen for the judgment of color by suspending a dyed specimen cloth with a clip attached to a chain, and continuously and automatically drying and cooling the cloth in such a manner as to constantly keep definite water content and cloth temperature. CONSTITUTION:Motors 17b, 26b and 33 are energized by throwing switches 41, 42 and 43 to drive fans 17a, 26a and a conveyor chain 30. At the same time, a controller 40 supplies steam to a heater 16a via valves 16d and 23d and cold water to a radiator 23a according to the detection signals transmitted from sensors 19, 21 and 27 to control a drying chamber 13 and a cooling chamber 14 to prescribed temperatures. A dyed specimen cloth S is held with a clip 34 attached to the above continuously circulating chain 30, introduced through an inlet 22 into the drying chamber 13, dried with hot air sent from the fan 17a, transferred to the cooling chamber 14, cooled with cold air sent from the fan 26a and taken out of the chamber through an outlet 28.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is applicable to dyeing a long fabric such as a woven fabric or a knitted fabric by continuously dyeing sample fabrics taken from the fabric during dyeing for color matching. The present invention relates to a device suitable for drying.

[Conventional technology] Advances in electronic engineering and optics have led to the development of superior color measuring instruments, and color matching, which is the determination of the color difference between a fabric or sample cloth and a standard color sample, is now possible in addition to the conventional judgment with the naked eye. It has become possible to perform extremely accurate measurements based on the measurement results of color embellishing equipment.

Dyeing of fabric is carried out under predetermined conditions after accurately weighing the dye and auxiliary agent according to the weight of the fabric, and the fabric is colored with a desired hue. Usually, when the same fabric is dyed multiple times,
Due to human and mechanical causes such as measurement errors of fabrics and dyes, variations in dyeing conditions, and the state of the fabric before dyeing, the hue of the dyed fabric is not necessarily constant for each dyeing.

For this reason, when dyeing a long piece of fabric with a dyeing machine, a part of the fabric is cut out during the dyeing process to make a sample fabric, which is then dried and compared with a standard color sample with the naked eye or with a colorimeter. The staining conditions are adjusted.

Conventionally, drying of the dyed sample cloth was carried out by passing the sample cloth cut from the wet cloth between a pair of rubber rollers pressed against each other to dehydrate it to a moisture content of about 60%, and then drying the sample cloth with hot air. The dryer is placed in the dryer, the degree of dryness is determined by the feel of the dryer, and the product is removed from the dryer and left in the air to cool.

[Problems to be Solved by the Invention] Generally, the hue of a cloth or sample cloth changes depending on its moisture content; for example, a fabric with a high moisture content appears darker. Fabrics have different weights and textures depending on the season, such as winter, summer, spring and autumn, so the moisture content after dehydration tends to change. For this reason, the moisture content of sample fabrics dried using conventional drying equipment tends to vary, and the sample fabrics may be compared with standard color samples with the naked eye or with a colorimetric device while the sample fabrics are insufficiently dried or overdried.

In this case, even if the color measurement method is excellent, it is not possible to make an appropriate judgment because the hue of the sample fabric changes as the moisture content of the dyed sample fabric becomes normal. .

In addition, fabrics dyed with acid dyes may change color due to heat, and if colors are matched without sufficient cooling after drying, accurate color measurements cannot be made.

Due to the above-mentioned problems, in the conventional drying apparatus, the dyed hue of a long piece of fabric may not match the standard color sample.

SUMMARY OF THE INVENTION An object of the present invention is to provide a continuous drying device for dyed sample cloth that maintains constant moisture content and temperature after drying of the dyed sample cloth to support accurate hue determination.

Another object of the present invention is to provide a continuous drying device for sample cloth, which can automatically dry a dyed sample cloth simply by holding it in a clip, cool it, and then take it out.

Yet another object of the present invention is to provide a continuous drying device that can be installed in a small space.

[Means for Solving the Problem] In order to achieve the above object, the continuous drying apparatus of the present invention has the following features:
a dryer having a drying chamber in which hot air circulates; a cooler having a cooling chamber provided close to the drying chamber and in which cold air circulates; an endless conveyor chain arranged to reach the outside of the drying room and return to the outside of the drying room; a motor that drives the conveyor chain; and a clip that is attached to the conveyor chain and that removably holds the sample fabric. and a release tool provided near the conveyor chain path outside the cooling chamber to open the clip and release the sample fabric.

[Function] A wet sample cloth after dyeing is held by a conveyor chain clip outside the drying room. By passing the conveyor chain through a drying chamber and a cooling chamber, the dried and cooled sample fabric is removed from the clips by a release device upon exiting the cooling chamber.

[Embodiment] Next, an embodiment of the present invention will be described in detail with reference to the drawings.

As shown in Figures 1 to 5, the continuous drying device is a dryer 1.
1 and a cooler 12, a drying chamber 13 of the dryer 11 and a cooling chamber 14 of the cooler 12 are separated by a heat insulating wall 15 and provided adjacent to each other. The insulation wall 15 has a chain passage hole 15
It has a.

The dryer 11 has a heating device 16 on the side, a blower device 17, an outside air intake damper 18, and a first temperature sensor 19 at the bottom, and a water vapor discharge damper 20 and a second temperature sensor 21 at the top. It has a chain population 22 at the front lower part. The heating device 16 includes a steam heater 16a, a steam pipe 16b connected to the heater, and a drain pipe 16c.
A flow control valve 16d is provided in the drain pipe 16c, and a trap 16e is provided in the drain pipe 16c. The blower device 17 includes a blower fan 17a and a motor 17b that drives the fan.

The cooler 12 has a cooling device 23 on the side, a humidifying damper 24, a humidifier 25, and a blower 26 on the top, a third temperature sensor 27 on the bottom, and a chain outlet 28 on the front bottom. . The cooling device 23 includes a radiator 23a1, a water supply pipe 23b and a drain pipe 23c connected to the radiator, and the water supply pipe 23b is provided with an on-off valve 23d. The blower device 26 includes a blower fan 26a and a motor 26b that drives the fan.

An endless conveyor chain 30 is provided in the drying chamber 13 and the cooling chamber 14. That is, this chain 30 is
The chain enters the chain 22 from the outside of No. 3, ascends while rotating inside the drying chamber 13, enters the cooling chamber 14 through the chain passage hole 15a, descends while also rotating within the cooling chamber 14, and exits from the chain outlet 28. It is arranged so as to go out of the cooling chamber 14 and return to the outside of the drying chamber 13 again. For this purpose, the drying chamber 13 and the cooling chamber 14 are provided with a number of freely rotating sprockets 31 and a single drive sprocket 32 for deflecting the chain 30 (FIG. 5).

The drive sprocket 32 is driven by a chain drive motor 33 with a speed change mechanism.

As shown in FIG. 6, clips 34 for removably holding the sample cloth are attached to the conveyor chain 3o at predetermined intervals. This clip 34 is attached to the L of the chain 30.
A fixing plate 34a welded to the letter-shaped protruding piece 30a;
It is composed of a presser foot 34b pressed against the fixed plate 34a by a coil spring (not shown), and a lever 34c provided at the lower end of the presser foot 34b and curved upward.

In addition, the sample fabric S
A release tool 37 for releasing is fixed via a bracket 38. In this example, the release tool 37 is formed in the shape of an arm that curves away from the rail. A trade fair container 39 is arranged below the release tool 37 to accommodate the sample fabric S dropped from the clip 34 by the release tool 37.

Returning to FIG. 1, 40 is a controller that includes motor start switches 41, 42 and 43.

Switch 41 is for motor 17b1 Switch 42 is for motor 2
The 6a1 switch 43 starts and stops the motor 33, respectively. A temperature sensor 1 is provided as a control input of the controller 40.
9.21 and 27 outputs are connected. controller 4
0 is equipped with thermometers 19a, 21a, and 27a that display the temperatures detected by these sensors 19, 21, and 27, and is further equipped with a knob 44 that changes the rotation speed of the motor 33.

The control output of the controller 40 is the motor 17b, 26b,
33. It is connected to the flow rate control valve 16d and the on-off valve 23d.

Next, a method of drying the sample cloth S using the continuous drying device having such a configuration will be explained.

First, turn on the switches 41, 42 and 43 to turn on the motor 17b.
, 26b and 33. Fans 17a and 26a
begins to rotate, and the conveyor chain 30 begins to move. Turn the knob 44 of the controller 40 to adjust the chain speed.

The controller 40 opens the flow control valve 16d and the on-off valve 23d based on the detection outputs of the sensors 19, 21 and 27,
Steam is supplied to the heater 16a, and cold water is supplied to the radiator 23a. The controller 40 has a memory (not shown), and automatically controls opening and closing of the flow rate control valve 16d and the opening/closing valve 23d so that the drying chamber 13 and the cooling chamber 14 have a predetermined temperature. The outside air intake damper 18 and the water vapor discharge damper 20 are opened as appropriate by manual operation.

When the drying preparation of the continuous drying device is completed, the sample cloth S is dried according to the following procedure. That is, a sample cloth S cut from a wet cloth in the middle of dyeing is passed between a pair of rubber rollers (not shown) to dehydrate it to a moisture content of about 60%, and then a clip attached to the chain 30 before entering the drying chamber 13 is used. Hold the upper end of the sample cloth S at 34 and let it hang down.

The motor 33 causes the sample fabric S to enter the drying chamber 13 along with the chain 30 from the chain assembly 22, and ascend while rotating sequentially. The sample cloth S is dried by receiving hot air circulating in the drying chamber 13 by the fan 17a. A part of the air that dried the sample fabric S is discharged from the damper 20, as shown by the solid arrow in FIG. .

The sample cloth S passes through the chain passage hole 15a, moves to the cooling chamber 14, and descends while turning sequentially. The sample cloth S is cooled by receiving cold air circulating in the cooling chamber 14 by the fan 26a. If necessary, open the damper 24 and manually turn on the humidifier 2.
5 may be activated to introduce humid air into the cooling chamber 14. As a result, the sample cloth S is simultaneously cooled and humidified. As shown by the broken line arrow in FIG. 1, the cold air circulates through the radiator 23a and the cooling chamber 14.

Furthermore, as shown in FIGS. 7 and 8, when the sample fabric S held by the clip 34 exits the cooling chamber 14 from the chain outlet 28 and reaches the release tool 37 together with the chain 30, the lever 34c of the clip 34 When the chain 30 comes into contact with the release tool 37 and moves further, the lever 34c is pushed up and the presser foot 34b is released from the fixed plate 34a. The sample fabric S falls under its own weight and enters the sample filling container 39 below.

The sample cloth S contained in the sample filling container 39 has a predetermined moisture content and cloth temperature suitable for color matching.

In addition, in the above example, the dampers 18, 20.24 and the humidifier 2
5 was manually opened, closed or activated, or the controller 40
It may be automatically controlled or remotely operated.

Furthermore, in the above example, drying of a sample cloth cut from a long cloth in the process of being dyed was described, but the present invention is not limited to this.
Of course it can be applied to beaker dyed sample fabrics.

[Effects of the Invention] As described above, according to the continuous drying apparatus of the present invention, the dyed sample cloth is dried at a predetermined temperature and cooled, so that the moisture content and cloth temperature of the sample cloth can be adjusted to desired levels. value, and even after repeated drying, a constant moisture content and cloth temperature can always be obtained.
Accurate hue determination can be supported.

In addition, the continuous drying device of the present invention can automatically dry, cool, and take out the dyed sample fabric while holding it in the clip, which greatly reduces the number of man-hours required to dry the sample fabric. I can do it.

Furthermore, if the conveyor chain that moves between the drying chamber and the cooling chamber is arranged so as to rotate, there is an advantage that the continuous drying device can be installed compactly without taking up much space.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a continuous drying apparatus according to an embodiment of the present invention. FIG. 2 is a view seen from the nn line direction of FIG. 1. FIG. 3 is a view seen from the direction of the line ■-■ in FIG. FIG. 4 is a plan view of FIG. 1. FIG. 5 is a perspective view showing the moving path of the conveyor chain. FIG. 6 is an enlarged perspective view showing details of the conveyor chain, clip, and release tool. FIGS. 7 and 8 are cross-sectional views showing how the sample cloth comes off from the clip. 11, Dryer, 12: Cooler, 13: Drying room, 14: Cooling room, 24: Humidifying damper (humidifying means), 25, Humidifier (humidifying means), 30: Conhair chain, 33: Chain drive motor, 34: Clip, 37. Release tool, 39. Sample filling container. “Burning” (〆〆Fig.

Claims (1)

[Scope of Claims] 1) A dryer having a drying chamber in which hot air circulates; a cooler having a cooling chamber provided adjacent to the drying chamber and in which cool air circulates; and an endless conveyor chain disposed to pass through a cooling chamber to the outside of the cooling chamber and return to the outside of the drying chamber; a motor for driving the conveyor chain; and a sample fabric attached to the conveyor chain. A continuous drying device for dyed sample cloth, comprising: a clip for removably holding the sample cloth; and a release tool provided near a conveyor chain path outside the cooling chamber for opening the clip and releasing the sample cloth. 2) The continuous drying device for dyed sample cloth according to claim 1, wherein the cooling chamber is provided with a humidifying means for humidifying the cold air. 3) An endless conveyor chain enters the drying chamber from outside the drying chamber, ascends while turning inside the drying chamber, enters the cooling chamber, descends while turning within the cooling chamber, and exits outside the cooling chamber. 2. The continuous drying device for dyed sample cloth according to claim 1, wherein the device is arranged to exit and return to the outside of the drying chamber.