JPS6031110Y2 - Soaking device for continuous loop steamer for knitted fabrics - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a heating device for a continuous loop steamer for knitted fabrics used for dyeing knitted fabrics with dyes.

Conventionally, in a continuous loop steamer for knitted fabrics, as shown in FIG. The conveyor bar b is placed on a conveyor or the like within the steaming chamber a, and is rotated by some mechanism to move the suspended position in the vertical direction while moving the bar b in the steaming chamber a in a loop. Saturated steam or superheated steam generated by a steam generator (not shown) is lowered from the ceiling e of the steaming room a toward the knitted fabric A through a blowing pipe C and a steam supply duct d for dyeing. There is a known method in which the steam is deposited and then the steam is discharged from an exhaust duct f by a fan (not shown).

In addition, g is a side wall heat insulation board.

However, in the type shown in FIG. 1, since the steam is of a non-circulating type and is discharged after one use, it is not possible to increase the flow rate of steam without limit, and therefore, the steam flowing down cannot be increased. The flow rate slows down,
For example, even if the loop length is relatively short, about 2.5 m, the top and bottom ends of the knitted fabric will have a temperature of 20°C to 25°C when the steaming temperature is 180°C. There is a difference, and at the same time there is a considerable difference in humidity.

Therefore, in order to prevent uneven dyeing of the knitted fabric due to such differences in temperature and humidity, the conveyor bar is rotated to change the vertical position of each part of the knitted fabric. This allows for even heating and humidification.

However, increasing the rotational speed of the conveyor bar causes disadvantages such as slippage of the knitted fabric and collapse of the loop length, so there is a limit to increasing the rotational speed. It takes a long time to dye.

In addition, since the knitted fabric must remain in the steaming chamber until its vertical position is switched, the length of the knitted fabric that stays in the steaming chamber must be increased accordingly. must stay for at least 150 yyt.

Furthermore, since a large steaming room is required to accommodate such a large amount of knitted fabrics, the entire loop steamer becomes large and requires a large space for installation. If the chamber is too large, there will be a lot of wasted knitting fabric and energy.

Furthermore, as shown in FIG. 2, a conventional loop steamer of this kind includes a circulation type steamer in which the steam that has descended in the steaming chamber a is blown up again by a blower and descended from the ceiling.

Note that i is a heater.

In the case shown in FIG. 2, since a blower is used, the difference in temperature and humidity between the top and bottom ends of the loop of the knitted fabric is smaller than in the case shown in FIG. If the air flow rate is increased, the vibration of the knitted fabric will increase, causing wrinkles and inadequate loop length.There is also a limit to increasing the amount of air supplied.
At a loop length of 377L and a steaming temperature of 180°C, there is a temperature difference of about 15°C between the uppermost end and the lowermost end of the knitted fabric.

Therefore, uniform heating and humidification of the knitted fabric is still achieved only by the rotation of the bar, and the disadvantages of the conventional example shown in FIG. 1 cannot be overcome.

This invention was developed with a focus on these circumstances.
A first discharge duct for lowering steam toward the knitted fabric from above, a second discharge duct for raising steam toward the knitted fabric from below, and steam supplied from a steam blowing box. By providing an air blower that forcibly sends steam into each of the discharge ducts, and an air supply amount adjusting means to adjust the amount of steam supplied to the steaming chamber through each of the discharge ducts, It is possible to keep the temperature and humidity within the dyeing tolerance, and the loop steam can be made smaller. Therefore, it is possible to dye a wide variety of small quantities of knitted fabrics, etc.
Moreover, the present invention provides a heat soaking device for a continuous loop steamer for knitted fabrics, which can shorten the time required for dyeing.

An embodiment of the present invention will be described below with reference to FIGS. 3 and 4.

A knitted fabric A transported by a transport mechanism 1 is suspended from a transport bar 3 in a steaming chamber 2.

The conveyor bar 3 is sequentially moved within the steaming chamber 2 by a first conveyor 4 and a second conveyor 5.

Here, the first conveyor 4 is a pair of chain-type conveyors that circulate vertically and longitudinally in the steaming chamber 2, and has a metal fitting for suspending the conveyor bar 3. When crossing the conveyor 5 vertically, the carrier passes the conveyor bar 3.

The second conveyor 5 is a pair of chain-type conveyors that move horizontally in the upper part of the steaming chamber 2, and receives the conveyor bar 3 from the first conveyor 4 for a required distance. It is conveyed and handed over to the first conveyor 4 again.

Further, when the knitted fabric A is suspended on the conveyor bar 3 and conveyed by the first conveyor 4, it is formed into a loop shape by the wind pressure blown from the fan 6 through the nozzle-equipped duct 7. It is configured as follows.

In addition, a chain wheel end is fixed to one end of the conveyor bar 3, and the chain wheel 8 is laid horizontally on the mounting base 9. Therefore, when the conveyor bar 3 is also moved by the second conveyor 5, the chain wheel 8 is configured to roll while meshing with the chain wheel 711.
・It is designed to roll together with the

Further, a heat equalizing device is provided in the steaming chamber 2.

This heat equalizing device includes first discharge ducts 12 disposed vertically at both ends of the steaming chamber 2, and a first discharge duct 12 disposed approximately horizontally at the bottom near the entrance of the steaming chamber 2. 2
discharge duct 13, and both discharge ducts 12 and 1.
3, a steam generator (not shown) and a steam blowing pipe 15 that introduces the steam generated by the steam generator into the suction port of the blower 14, and the steam in the steaming chamber 2. a steam supply box 16 for introducing steam into the blower 14;
Dampers 17 and 18 serving as air supply amount adjusting means provided in each of the discharge ducts 12 and 13, and each of the discharge ducts 12 and 12
．． Steam blowing device 1 for replenishing steam to 13
9 and 21.

The first discharge duct 12 has an inlet 12 a connected to an upward discharge port of the blower 14 and an outlet 12 b opened near the ceiling of the steaming chamber 2 .

Furthermore, a damper 17 is interposed inside the first discharge duct 12 to adjust the amount of air supplied, and in addition, a steam blowing device 19 is connected to the first discharge duct 12 to replenish steam. I'm trying to make it possible.

The second discharge duct 13 has its ends 13a, 13a connected to the horizontal discharge ports of the blower 14, and an outlet 13b provided in the middle of the second discharge duct 13, which is located near the entrance of the steaming chamber 2. It faces the bottom side of the knitted fabric A, and is configured so that steam rises from the outlet tab.

Furthermore, a damper 18 is interposed inside the duct 13, and a steam blowing device 21 is also connected thereto.

The blower 14 communicates with both the discharge ducts 12 and 13, and is driven by a motor so as to be able to forcefully ventilate both the discharge ducts 12 and 13 at the same time.

The steam blowing pipe 15 is connected to the steam supply box 16
, and the steam is introduced into the blower 14 through the steam supply box 16.

The steam supply box 16 has a suction port 16a opened in the steaming chamber 2 and a supply port 16b connected to the suction port of the blower 14, so that the steam to be supplied is kept in the dryest state at atmospheric pressure. It is also possible to store hot water.

The steam blowing device 19 supplies superheated steam or spray to the first discharge duct 12 via an auxiliary steam blowing pipe 22 from an auxiliary steam generator (not shown) capable of generating superheated steam or spray using steam.
Similarly, the steam blowing device 21 is configured to blow superheated steam or spray into the second discharge duct 13 from an auxiliary steam generator (not shown) through an auxiliary steam blowing pipe 23. That's what happens.

With such a configuration, when the knitted fabric A is carried into the steaming chamber 2 by the transport mechanism 1, the knitted fabric A is successively suspended from the transport bar 3... It is transported inside the steaming chamber 2.

That is, first, when the fabric A is suspended from the conveyor bar 3 being moved by the first conveyor 4, wind is blown onto the knitted fabric A from the nozzle duct 7 by the fan 6, and this wind pressure causes The knitted fabric A becomes a loop with a length of 1.5rrL to 2m.

Subsequently, the conveyor bar 3...the music is transferred from the first conveyor 4 to the second conveyor.
When transferred to the second conveyor 5, the loop-shaped knitted fabric A is transferred to the second conveyor 5 together with the conveyor bar 3.
It moves in the horizontal direction.

While being moved by the second conveyor 5, steam is supplied from the steam blowing pipe 15 and the steam supply box 16 depending on the type of knitted fabric, and is sent to the first discharge duct 12 and the second discharge duct 13 by the blower 14. The forcedly fed spray, saturated steam or superheated steam that cannot be sent into the first discharge duct 12 is sent from the upper outlet 12b, and that which is sent to the second discharge duct 13 is sent from the bottom, respectively. It is discharged towards textile A.

At this time, by adjusting the temperature and humidity of the steam discharged from above and the steam discharged from below to the knitted fabric A, the difference in temperature and humidity between the top and bottom ends of the knitted fabric A can be reduced. The window can be reduced to the extent that uneven wearing does not occur.

Therefore, it is no longer necessary to spend a long time changing the vertical position of the knitted fabric in order to eliminate uneven dyeing due to differences in temperature and humidity, which is required in the past, and the length of time the knitted fabric stays in the steaming room can be reduced. Since it can be shortened, even a small amount of knitted fabric can be dyed.

Furthermore, since the steaming chamber can be small, the loop steamer as a whole can be made smaller, and installation is easier.

Furthermore, since the time required to raise and lower the temperature in the steaming chamber can be shortened by making the steaming chamber smaller, the time required for dyeing can be shortened.

For example, for polyester, it is heated at 17°C for 5 minutes, and for nylon or acrylic, it is heated at 100'C!~103'C! for 1 minute.
It is sufficient to allow the powder to stay in the steaming room for 5 to 2 minutes.

It should be noted that the present invention is of course not limited to the above-mentioned embodiments, and the blower is not limited to one that can simultaneously supply air to the first discharge duct and the second discharge duct. They may be provided separately for each duct.

Further, the air supply amount adjusting means is of course not limited to the damper, and for example, when a blower for the first discharge duct and a blower for the second discharge duct are separately provided as described above. Alternatively, the ratio between the amount of air blown from above and the amount of air blown from below may be adjusted by controlling the operating speed of each of the blowers.

Further, the loop length of the knitted fabric is not limited to 1.5rrL to 2m, but it is most practical if it is 1.5mm to 2mm.

Further, the present invention also includes a device in which only one of the first discharge duct or the second discharge duct is equipped with a steam blowing device, and a device without a steam blowing device.

However, if both the lower and lower discharge ducts are equipped with steam blowing devices, the difference in temperature and humidity within the steaming chamber can be further reduced.

For example, when an auxiliary steam generator that can generate superheated steam or atomization using steam is installed and used to adjust the temperature in high-temperature steaming at 160°C to 180°C, the temperature of a device without a steam blowing device The difference was about 6℃, but it was able to be kept within 3℃, and when used for humidity adjustment in low-temperature steaming between 100℃ and 103℃, it was able to maintain the humidity closest to saturated steam. Ta.

Further, the second discharge duct is not limited to being provided near the entrance of the steaming chamber, but if it is provided near the entrance, the difference in temperature and humidity within the steaming chamber can be further reduced.

Various other modifications can be made without departing from the spirit of the present invention.

As explained above, the present invention makes it possible to reduce the difference in temperature and humidity in the steaming room by supplying steam to the knitted fabric from both the top and bottom. It has the following effects.

(1) Since knitted fabrics can be dyed evenly even in small quantities, color development and discharge printing of a wide variety of small quantities is easy.

For example, in the above embodiment, the knitted fabric was allowed to stay in the steaming chamber for 50 yyz.

(2) Since the continuous loop steamer for knitting and fabrics can be downsized, it can be installed even in small factories.

In the above embodiment, the installation area and volume can be reduced to about 50% of the conventional one.

(3) Since miniaturization is possible, the time required to raise and lower the temperature of the steaming chamber can be shortened, and dyeing can be carried out in a correspondingly short time.

In the above example, the time required to raise and lower the temperature was 5 times shorter than that of the conventional one.
It was possible to shorten the time to 0-60%.

[Brief explanation of the drawing]

1 and 2 are schematic explanatory diagrams showing a conventional example, FIG. 3 is a schematic front sectional view showing an embodiment of the present invention, and FIG. 4 is a schematic sectional view taken along the line IV-IV in FIG. 3. It is. 2... Steaming chamber, 3... Conveyance bar, 12... First discharge duct, 13...
...Second discharge duct, 14...Blower, 16
...Steam supply box, 17.18...
...Air supply amount adjustment means (damper), 19, 21...
...Steam blowing device.

Claims (2)

[Scope of utility model registration request] (1) In a continuous loop steamer configured to allow knitted fabrics to be dyed to be sequentially suspended in a loop shape from a conveyor bar and retained in a steaming chamber for a required period of time, the knitted fabrics are a first discharge duct for raising steam toward the knitted fabric from below; a second discharge duct for raising steam toward the knitted fabric from below; and a steam blowing box for directing steam supplied from a steam blowing box to the discharge duct. A knitted fabric characterized in that it is provided with an air blower that forcibly sends air to the steam chamber, and an air supply amount adjusting means for adjusting the amount of steam supplied to the steaming chamber through each of the discharge ducts. Heat equalization device for continuous loop steamer. (2) The continuous loop steamer according to claim 1, wherein at least one of the discharge ducts is equipped with a steam blowing device for replenishing steam. Soaking device.