KR100357687B1 - A hot air drying machine for textile - Google Patents

Abstract

The present invention relates to a hot air device for drying fibers, and to provide a hot air device having a technical configuration capable of performing a high quality fiber drying by uniformly blowing high temperature hot air along the fiber fabric to be transported.

The present invention for realizing this, the heat source unit for heating the ambient air through heat exchange in the lower portion of the device forming a predetermined space by the frame and the wall plate; A pair of blowing fans which draw air heated by the heat source in the horizontal direction on the opposite side and then force it to blow in the vertical direction, each having an independent drive source; A hot air guide duct for guiding a high temperature hot air forcedly blown by the blowing fan in an upward direction; A plurality of injection ducts installed in communication at an upper end of the hot air guide duct to be jetted to the opposite sides through a plurality of injection holes after the guided hot air is branched into a plurality of paths; A single opening and closing plate rotatably installed at an inflow side of the injection duct to selectively introduce or block hot air guided through a hot air guide duct; And branching the hot air flowing into the injection duct into a plurality of paths, and controlling the amount of air flowed while being rotated about one end.

Description

Hot air dryer for fiber drying {A HOT AIR DRYING MACHINE FOR TEXTILE}

The present invention relates to a hot air drying device for fiber drying, and more particularly, by forcibly blowing high temperature hot air generated from the heat source unit using a blower fan and uniformly spraying a predetermined area through an air injection duct. The present invention relates to a hot air device for improving drying efficiency.

In general, in the various processes performed during the production of the fiber, the fibers that are dyed and printed are wetted by the dye solution, so that the fibers are quickly dried using a hot air drying apparatus and then transferred to the next step.

As an apparatus for performing such a drying process, a shrink (SHRINK) or a tenter (TENTER) is mainly used. In the present invention, a tenter is described as a main embodiment.

The tenter is one of the energy-saving equipments used by general textile companies and uses about a quarter of the total energy used in the dyeing process, and heat setting is performed by the pre-dyeing process during the processing of the fiber fabric. It is used to perform a drying process, a shrinkage process by heat treatment, etc., which is performed by a step or a post-dyeing step, and an example of a tenter according to the prior art is illustrated in FIG. 1.

That is, the fiber drying tenter according to the prior art is provided with a drive motor M on one side of the lower side of the rectangular chamber 1 having a substantially rectangular parallelepiped shape, and the blower fan is provided on the motor shaft 2 of the drive motor M. (3) is fixed.

Here, the blower fan (3) is an axial fan (Axial Fan) formed so as to blow in a direction perpendicular to the suction direction of the air is used. A burner (B), which is a heat source, is provided at a lower side of the rectangular chamber 1 corresponding to the opposite side on which the driving motor M is installed.

Between the burner (B) and the blower fan (3) of the drive motor (M), a duct member (4) through which air flows is fixed, and one end thereof is installed to surround the entire blower fan (3). When the blowing fan 3 is rotated by the driving motor M, the heat generated from the burner B serves to guide the suction flow to the blowing fan 3 in the arrow direction.

The hot air guide duct 5 which is connected to the upper side is branched and installed in the duct member 4 in which the blower fan 3 is installed, and the heat generated from the burner B by the blower fan 3 is converted into hot air. And flows into the hot air guide duct (5).

Specifically, the hot air guide duct 5 includes a pair of upper and lower branch ducts 5a and 5b configured to be spaced apart from each other with a predetermined upper and lower sides, and is connected to the upper and lower branch ducts 5a and 5b to maintain a predetermined interval vertically. It is installed so as to be spaced apart, and the upper and lower spray ducts 6 and 7 for spraying hot air to the fiber fabric are fixed.

The upper and lower spray ducts 6 and 7 have a structure in which the inside is sealed to the outside, and a plurality of minute spray holes (not shown) are formed on sides facing up and down, respectively, and the hot air guide ducts are formed. Hot air transferred through (5) is injected into the fine injection hole to reach the fiber fabric (T) passing between the upper and lower injection ducts (6, 7).

Therefore, the fiber fabric (T) in the contracted state by hot air is adjusted to a constant width to prevent deformation of the product.

However, according to the prior art, the heat of the burner (B) is forcibly sucked along the duct member (4) by the blowing fan (3) rotated in accordance with the drive of the drive motor (M) near the blowing fan (3) The flow path is changed upward by approximately 90 °, and then blown into the hot air guide duct (5), in which the hot air guide duct (5) located in the upper portion of the blow fan (3) is a hot air due to the narrow space Since the flow path is shortened, the heat of the burner (B) is not mixed properly, resulting in a difference in temperature distribution, resulting in a bad effect on the quality of the fabric, such as streaked marks on the fiber fabric.

In addition, in the hot air supply system according to the prior art, when the fiber fabric T passing through the air injection ducts suddenly stops due to external conditions, in order to prevent the hot air from being excessively supplied to the fiber fabric. After extinguishing the burner (B) which is a heat source in sequence, the current supplied to the driving motor is cut off, and then the driving of the blower fan is also stopped. This causes the motor shaft to rotate temporarily.

As the motor shaft is temporarily rotated in this way, hot air is forced to the fiber fabric through the air blowing duct by a blower fan, which causes a stop mark on the fiber fabric, thereby degrading the quality of the fabric. By extinguishing (B), the temperature inside the chamber is lowered after a certain time has elapsed, and the problem of retarding the drying time as well as causing a defect of the fiber fabric while increasing to a certain temperature upon restarting.

On the other hand, in order to prevent the occurrence of such a stop mark, by installing a separate opening and closing door on the inlet side of the injection duct, respectively, the transfer of the fiber fabric (T) is stopped and at the same time close the opening and closing door to block the inflow of hot air. However, this technical configuration has a problem that the number of parts of the device is increased due to the opening and closing door and a separate drive means for driving the duct in each duct, thus increasing the failure factor of the device.

The present invention has been proposed to solve the above problems in the prior art, and an object of the present invention is to provide a hot air supply structure through which hot air can be evenly distributed to the fiber fabric to prevent deterioration of the quality of the fiber fabric to be dried.

In addition, another object of the present invention is to install an opening and closing plate on the inlet side of the injection duct for controlling the hot air to be injected with a simplified technical configuration, the hot air directly to the fiber fabric when the transfer of the fiber fabric is stopped To prevent it from being supplied.

Still another object of the present invention is to allow hot air to flow by a plurality of blower fans, and by installing a hot air guide duct for guiding the hot air in a vertical direction, the entire hot air path is extended to be sucked and blown out of a heat source. It is to distribute the temperature equalization effect of the hot air more evenly and at the same time improve the space utilization compared to using a single blower fan.

Fiber drying hot air apparatus of the present invention for achieving the above object, the heat source unit for heating the ambient air through heat exchange in one side of the lower chamber of the device forming a predetermined space by the frame and the wall plate; A pair of blowing fans each of which draws air heated by the heat source unit on one side of the lower chamber in a horizontal direction on the opposite side and then forcedly blows it in a vertical direction, each having an independent driving source; A hot air guide duct for guiding a high temperature hot air forcedly blown by the blowing fan in an upward direction; A plurality of injection ducts which are installed in communication at the upper end of the hot air guide duct so that the guided hot air is branched into a plurality of paths and then sprayed to the opposite sides; A single opening and closing plate installed at an inlet side of the injection duct to selectively introduce or block hot air guided through a hot air guide duct, connected to a link section rotated around one side; And branching the hot air flowing into the injection duct into a plurality of paths, and controlling the amount of air flowed while being rotated about one end.

1 is a cross-sectional view of a hot air device presented in the prior art.

Figure 2 is an exploded perspective view of the wall plate of the hot air device according to an embodiment of the present invention.

3 is a cross-sectional view showing a hot air supply state of the hot air device according to the embodiment.

4 is a rear view of the hot air device according to the embodiment.

Figures 5a, b, c is a state diagram showing the flow of hot air flow in accordance with the rotation direction of the blowing fan installed on the rear of the hot air device, respectively

Figure 6 is a cross-sectional view showing a hot air flow state when the opening and closing plate shields the inlet of the injection duct in the present invention.

7 is a state in which a heat exchanger is applied to a heat source unit according to another embodiment of the present invention.

8 is a state in which a plurality of hot air devices are arranged in the same direction according to an application example of the present invention.

9 is a state in which a plurality of hot air devices are arranged in an alternating direction according to an application example of the present invention.

<Explanation of symbols for the main parts of the drawings>

100: frame 101: wall board

102: transfer hole 103: insertion hole

104: exhaust port 105: injection duct

106: hot air guide duct 106a: guide portion

107: opening and closing plate 108: blowing fan

110: first load 111: second load

112: Link Clause 113: Operational Load

114: duct member 117: ventilation holes

119: air volume control damper 120: air cylinder

121: tension chain

Hereinafter, a specific embodiment of the fiber drying hot air apparatus according to the present invention will be described in detail with reference to FIGS. 2 to 10.

Figure 2 is an exploded perspective view of the hot air device according to an embodiment of the present invention, Figure 3 is an internal cross-sectional view of the hot air device, Figure 4 is a rear view of the hot air device, Figure 5 is hot air according to various rotational direction setting of the blowing fan It is a state diagram which showed the flow of airflow, respectively, and FIG. 6: shows the state diagram at the time of the opening-closing board shielding the inlet part of the injection duct.

First, the configuration of the hot air device according to the embodiment is as follows.

As shown in FIG. 2, the drying hot air device according to the present embodiment separates the inner space from the outside by combining a plurality of wall plates 101 on each side of the frame 100 constituting the frame. The side wall plate (101a) is formed with a feed hole (102) into and out of the fiber fabric, the rear wall plate (101b) is formed with a drive motor insertion hole (103), and the upper wall plate (101c) with an exhaust port (104). ) Is formed.

In addition, a pair of spraying ducts 105 fixed to the upper and lower sides of the support frame 100 are fixedly installed, and the spraying ducts 105 are transport holes 102 formed on both side wall plates 101a. At the same height as)) spaced apart by a predetermined interval, the end is fixedly installed via a support bracket (not shown).

By installing as described above, the fiber fabric (T) is discharged through the fiber fabric feed port 102 on the other side while being fed through the fiber fabric feed port 102 on one side and then transported along the injection duct 105. .

Each of the upper and lower injection ducts 105 is provided with a plurality of fine air injection holes (not shown) on the surface facing each other so that air is injected toward the upper and lower surfaces of the fiber fabric (T).

Meanwhile, as shown in FIG. 3, one opening and closing plate 107 is installed at the inlet side of the injection duct 105 to open or close the hot air guided through the hot air guide duct 106. The lower end of the 106 is mounted with a blowing fan 108 for forcibly transferring hot air and a driving motor 109 for transmitting a driving force.

The hinge rod 107 ′ of the opening and closing plate 107 is fixed to the first rod 110 having a predetermined length so as to maintain a constant angle, and a second rod having a predetermined length is provided at an end of the first rod 110. The 111 is rotatably coupled, and the end of the second rod 111 is connected to one end 112a of the cramped link section 112. The other end 112b opposite to the link section 112 is rotatably connected to the operating rod 113 of the air cylinder 120, and the bent portion 112c of the suspension is formed outside the hot air guide duct 106. By being supported by both side wall plates 101a, a rotation shaft is formed.

The branching points of the upper and lower injection ducts 105, which are the lower positions of the opening and closing plates 107, branch the incoming hot air into a plurality of paths, but are rotated by receiving a separate power around the one end 119a. An air volume control damper 119 is installed to control the amount of air flow branched.

In addition, by forming a curved guide portion 106a that gradually reduces the duct width at the inner end of the hot air guide duct 106, the hot air is extended while the path of the initial hot air forcedly blown from the blower fan 108 is extended. It can be distributed evenly.

In the duct member 114 located in the lower part of the apparatus, the burner B is installed at a position opposite to the blower fan 108 to warm the air in the duct. A fuel such as gas is provided at the rear end of the burner B. Burner fan 116 is installed to supply air from the outside to be mixed with the ignition.

In addition, the upper portion of the burner (B) is formed with a vent 117 for the return of air, the vent 117 is provided with a double filter 118 for blocking foreign substances contained in the return air. .

On the other hand, as shown in Figure 3 is the fiber fabric (T) is supported by both ends by a predetermined width or tension chain 121, the state is prevented from sagging downward by its own weight in the process of transport It can be seen that the passage between the duct 105 for the furnace injection.

As shown in FIG. 4, the rotation direction of the blower fan 108 according to the present embodiment is preferably rotated symmetrically from the inner side to the outer direction, which is most appropriately distributed and diffused in the inside of the apparatus. It turns out that you can.

That is, the initial hot air forced up into the hot air guide duct 106 along the outside is unevenly transferred from both sides, but the air flow is mixed while passing through the guide part 106a which gradually reduces the air flow passage space in the duct. As a result, hot air can be uniformly mixed and distributed.

However, in addition to this, if necessary, as shown in the accompanying FIG. 5A, each of them may be rotated from the outside inward to maintain the same rotation speed, or both clockwise (FIG. 5B) or counterclockwise (FIG. 5C). It can be rotated by, it can be controlled by a simple operation in the control unit outside the device according to the shape of the duct.

Looking at the operation of the drying hot air device according to an embodiment of the present invention configured as described above are as follows.

The fiber fabric (T) to be conveyed through the transfer port 102 of the side wall plate 101a forming the appearance of the drying hot air device of the present invention passes between the upper and lower spraying duct 105, the burner (B) ) Is operated to generate a flame, the air temperature in the duct member 114 gradually increases, and the driving motor 109 is sequentially driven by applying a current.

As the driving motors 109 are driven in the above, the blowing fan 108 is rotated. As shown in FIG. 4, the paired blowing fans 108 are rotated in opposite directions to face each other. The heat generated by the flame of burner B is sucked in.

Thereafter, the hot air sucked into the blower fan 108 is discharged into the hot air guide duct 106 forming a vertical guide flow path while being heated in the pair of rotating blower fans and forced to rise.

At this time, the hot air discharged into the hot air guide duct 106 is mixed once again while hitting the guide portion 106a of the curved shape, and thus the temperature deviation and the air volume deviation of the heat occurs at the top of the hot air guide duct 106. Instead of maintaining a more uniform temperature distribution, the flow of hot air is achieved.

Thus, even though the hot air flowing along the inside of the hot air guide duct 106 is restricted by the flow rate by the guide part 106a, the hot air flowing through the blowing fan 108 maintains a stable wind speed up to the injection duct 105. do.

Then, the hot air is raised to a certain wind speed is introduced into the up and down injection duct 105 in the state that the opening and closing plate 107 is opened, wherein the introduced hot wind is rotated around the one end (119a) axis damper It branches to the upper / lower side by control of 119. FIG.

The hot air branched into the upper and lower injection duct 105 is sprayed to the fiber fabric (T) through the respective injection holes to perform the drying operation, thereby improving the quality of the fiber fabric produced without temperature variation as a whole. I can do it.

At this time, when the air volume injected through the injection hole is different from the upper / lower side, by controlling the rotation angle of the air volume control damper 119 can maintain the same air volume sprayed on the upper and lower surfaces of the fiber fabric (T). In addition, even if the amount of air injected to the upper and lower surfaces of the fiber fabric is to be changed as necessary, it is possible to control through the air volume control damper (119).

As such, a part of the waste hot air sprayed through the injection hole to dry the fiber fabric T is discharged to the outside through the exhaust port 104 formed in the upper wall plate 101c, and the rest is discharged through the lower air vent 117. By being recovered into the duct member 114 is heated again by the burner (B) to be able to cyclically perform the hot air drying operation.

At this time, since the waste hot air reduced through the vent 117 contains a large amount of foreign matters generated from the fiber fabric, the foreign matters are filtered out by the filter 118, and the filter 118 filters while the drying operation is in progress. It is desirable to install a double so that can be replaced.

That is, since the filter 118 has a double structure, even if one filter is replaced while the fiber drying process is performed by the hot air device, foreign matter is filtered out of the other filter, without interruption of operation. It is possible to achieve a continuous drying operation.

Therefore, as well as improving the productivity of the fiber fabric, the temperature of the hot air can be kept constant so that it is possible to produce a superior product.

On the other hand, the mechanism of the link section 112 by the operation of the air cylinder 120, as shown in Figure 6 to prevent hot air injection to the fiber fabric (T) when the transfer of the fiber fabric (T) is temporarily stopped. The opening and closing plate 107 blocks the inlet of the injection duct 105 by the kinetic movement, wherein the hot air blown while the burner B and the blower fan 108 are continuously operated is indicated by the arrows. Likewise guided along the inner surface of the upper wall plate 101c is immediately exhausted to the outside through the exhaust port 104 or is recovered through the vent 117 to maintain a continuous hot air circulation.

Therefore, since the temperature decrease in the duct member 114 does not occur, time for warming up to a predetermined temperature when the fiber fabric T is restarted is prevented, and at the same time, a stop mark is prevented from occurring in the fabric fabric T. It becomes possible.

Looking at the operation of the opening and closing plate 107 in more detail, when the operating rod 113 is lowered in accordance with the operation of the air cylinder 120, as shown enlarged, the other end 112b at the lower end of the operating rod 113 ) Is connected to the link section 112 is rotated in the counterclockwise direction by using the bent portion (112c) as a rotating shaft, thereby the second rod 111 connected to one end (112a) of the link section (112) Is pulled in the rotational direction of the link section 112, wherein the first rod 110 connected to one end is also rotated counterclockwise around the hinge shaft 107 ', so that the opening and closing plate 107 is a predetermined angle. By maintaining the hinge shaft 107 'is rotated together with the center is to block the inlet of the injection duct 105.

As a comparative example once again, in the prior art, the driving of the blower fan and the burner was stopped at the time when the transfer of the fiber fabric T was stopped to prevent the supply of hot air, but in this state, the fiber fabric T again. In order to carry out the drying process, it was inconvenient to take time to drive the burner again to warm the air to the set temperature.

However, in the present invention, since the burner B and the blowing fan 108 are in a state where continuous operation is being made, the hot air can continuously maintain the set temperature.

Therefore, when the transfer of the fiber fabric T is resumed, when the operation rod 113 is raised and the opening and closing plate 107 is opened in a process opposite to the closing operation of the opening and closing plate 107, the opening is continued. It can be seen that the hot wind is supplied to the duct 105 for the injection back to the hot blast injection to the fiber fabric (T).

In addition, in the prior art in which the door for opening and closing is adopted, a complicated component configuration is achieved because the doors for opening and closing are respectively provided on two injection duct inlet sides which are branched, but in the present invention, the inlet side of the injection duct 105 is provided. As the operation of closing only one installed single opening and closing plate 107 is performed, it can be seen that a more simplified configuration is achieved.

On the other hand as shown in Figure 7 is another embodiment of the heat source of the present invention, instead of the burner (B) in the embodiment consists of a circulating pipe 201 and heat dissipation fins 202 through which hot steam or heat medium is circulated. By installing the heat exchanger 200, the temperature of the surrounding air passing through the heat radiating fin 202 may be increased through a heat exchange action.

At this time, the air introduced by the suction action when the blower fan 108 is driven is forced by the blower fan 108 in a high temperature state where the heat exchanger 202 is naturally heat exchanged while passing through the heat exchanger 200. Will be done.

8 and 9 show a state in which a plurality of tenters constituting the configuration of the embodiment is connected and arranged as an application example of the present invention.

That is, as shown in Figure 8 by arranging a plurality of tenter assembly having a configuration according to the embodiment so as to face in the same direction, respectively, so that the conveying port 102 formed in each side wall plate is in communication with each other, In the process in which the fiber fabric T supplied in the width D is conveyed while continuously passing a plurality of tenters, a drying process can be performed for a predetermined time.

Alternatively, as shown in FIG. 9, in arranging the plurality of tenter assemblies in communication with the transfer ports 102, the positions of the blower fan 108 and the burner B in each assembly are alternated with each other in opposite directions. You can also place it.

The arrangement method as shown in FIG. 9 compensates for the temperature deviation of the hot air injected from the injection duct 105 (since the hot air temperature may be different between the tip and the end depending on the length of the injection duct), thereby providing a predetermined width (D). It will be shown that the more uniform hot air drying can be made for the entire surface of the fiber fabric (T) supplied to the).

This can be seen that it is possible to process a fiber fabric of a superior quality.

In addition, although specific embodiments of the present invention have been described above, it is apparent that the technical construction of the hot air drying device for fiber drying may be variously performed by those skilled in the art not only in the tenter described above but also in other hot air devices such as shrinks. One is true.

However, these various modified embodiments should not be understood individually from the technical spirit or prospects of the present invention, these modified embodiments should fall within the appended claims of the present invention.

In the drying hot air apparatus of the present invention as described above, the hot air is uniformly spread by the guide in the hot air guide duct extending the path as much as possible in the process of forcibly raising the hot air heated by the heat source. By allowing the supply to be made, it is possible to evenly form the temperature distribution of the hot air to be injected through the injection duct is possible to dry to a fabric of excellent quality.

In addition, the opening and closing operation of the inlet portion of the air injection duct for supplying the hot air can be achieved by only one opening and closing plate to achieve a simplified operation structure, thereby reducing the number of parts of the corresponding portion. .

In addition, when the transfer of the fiber fabric is suspended, the burner can continuously maintain the operating state so that the temperature of the heat source portion can maintain the set temperature, so that the hot air can be supplied immediately when the transfer of the fiber fabric is continued. .

In addition, by separately providing a control damper for controlling the air volume distribution at the branch point of the air injection duct in which the opening and closing plate is located, the hot air is injected to the fiber fabric through the injection hole of the upper and lower injection ducts to achieve the same air volume It can be seen that the effect such as easy to control is made.

Claims (3)

A heat source unit for raising the temperature of ambient air at one lower side of the device forming a predetermined space by the frame and the wall plate; A pair of blowing fans which draw air heated by the heat source in the horizontal direction on the opposite side and then force it to blow in the vertical direction, each having an independent drive source; A hot air guide duct for guiding high temperature hot air forcedly blown in a vertical direction by the blowing fan to an upper portion of the apparatus; A plurality of injection ducts installed in communication at an upper end of the hot air guide duct and branched into a plurality of paths so that the guided hot air is injected to the opposite sides through a plurality of injection holes; A single opening and closing plate rotatably installed at an inflow side of the injection duct to selectively introduce or block hot air guided through a hot air guide duct; And a wind volume control damper for branching the hot air introduced into the injection duct into a plurality of paths and controlling the amount of air flowed while being rotated about one end. The method according to claim 1, The hot air guide duct is a fiber drying hot air device, characterized in that for forming a curved guide portion to gradually reduce the duct width at the tip of the forced air blown by the blowing fan. The method according to claim 1, The opening and closing plate is hinged to one end of the rod connected to the multi-stage to enable the rotation, the rotational force is provided to receive from the operating rod flowing up and down by the air cylinder characterized in that the fiber drying hot air Device.