KR102781776B1 - Process air control system for fabric tenter machine - Google Patents

Abstract

The present invention is characterized in that it comprises: a main body (10) having a processing unit (13), a drying chamber (15), and a cooling chamber (17) on a fabric transport path by a transporter (11); a hot air member (20) for causing drying of a fabric by a plurality of hot air pipes (21) and hot air blowers (25) provided in the drying chamber (15); a cooling member (30) for causing cooling of a fabric by a cooler (35) and a cold air pipe (37) connected to the cooling chamber (17); an exhaust member (40) for arranging an exhaust duct (41) above the drying chamber (15) and purifying it by a filter (45) and a dust collector (47); and a control means (50) for connecting the main body (10), the hot air member (20), the cooling member (30), and the exhaust member (40) to a controller (51) and controlling them by a set algorithm.
Accordingly, in the process of restoring shrunken fibers to their original state after the fabric mass production process has been completed, the heating and cooling air in the drying chamber is efficiently and safely controlled, thereby substantially improving quality and productivity.

Description

Process air control system for fabric tenter machine

The present invention relates to a tenter system for textiles, and more specifically, to a process air control system for a tenter system for textiles used in the process of restoring shrunken fibers to their original state during the textile processing process.

In mass production of fabrics, when going through wet processes such as refining, bleaching, dyeing, and processing, the fabric receives tension in the warp direction, so it shrinks a lot in the width direction. Therefore, a tenter is used to restore the shrinkage fibers to their original width and recover the structure. In the operation of the tenter, air control for heating/cooling is a process element that greatly affects the quality of the fabric. In addition, periodic maintenance of the tenter, which consumes a lot of energy and generates a lot of dust in mass production sites, is also essential.

As prior art documents that can be referenced in relation to tenters, Korean Patent Publication No. 1425109 (prior art document 1) and Korean Patent Publication No. 2063748 (prior art document 2) are known.

Prior art document 1 describes an air ejection nozzle used to eject air onto the surface of a resin film, which is installed at intervals relative to the passage surface of a resin film that is returned in one direction, and the nozzle is provided with a plurality of circular air ejection holes arranged in a zigzag manner. Accordingly, uniform heat treatment characteristics in the width direction of the resin film are expected by a tenter oven using the air ejection nozzle.

Prior art document 2 includes a housing having an outlet for discharging a cleaning gas from which foreign substances have been removed; a primary dust removal device for removing coarse fiber dust from exhaust gas within the housing; and an energy recovery type secondary dust removal device for recovering energy from exhaust gas through heat exchange. Accordingly, it is expected to have the effects of convenience in maintenance and cost reduction by preventing fiber dust from sticking.

However, according to the above-mentioned prior literature, various factors related to the operation of the tenter machine at the mass production site are not sufficiently reflected, and thus there is room for improvement.

Korean Patent Publication No. 1425109 "Air jet nozzle and tenter oven using the same" (Publication date: 2009.11.30.) Korean Patent Publication No. 2063748 "Waste heat recovery and dust removal device for tenter equipment" (Publication date: 2019.10.01.)

The purpose of the present invention to improve the above-mentioned conventional problems is to provide a process air control system of a textile tenter machine for efficiently and safely controlling the heating and cooling air of a drying chamber in the process of restoring shrinkage of fibers to their original state after the process in a textile mass production site.

In order to achieve the above object, the present invention is characterized by comprising: a system for controlling process air of a fabric tenter, comprising: a main body having a processing unit, a drying chamber, and a cooling chamber on a fabric transport path by a transporter; a hot air member for causing drying of the fabric by a plurality of hot air pipes and hot air blowers provided in the drying chamber; a cooling member for causing cooling of the fabric by a cooler and a cold air pipe connected to the cooling chamber; an exhaust member for arranging an exhaust duct above the drying chamber and purifying the air by a filter and a dust collector; and a control means for connecting the main body, the hot air member, the cooling member, and the exhaust member to a controller and controlling them by a set algorithm.

According to a detailed configuration of the present invention, the hot air member is characterized in that it forms a hole in at least a part of the hot air pipe, overlaps a control plate having the hole, and causes displacement of the control plate by a control device.

According to a detailed configuration of the present invention, the cooling member is characterized by having a fixed nozzle that sprays cold air at a fixed position, a movable nozzle that sprays cold air in a position-changeable manner, and a movable device that causes displacement of the movable nozzle.

According to the detailed configuration of the present invention, the exhaust member is characterized in that it forms a filter by laminating a metal material and a felt material, and displaceably supports two filter materials on a filter frame.

According to the detailed configuration of the present invention, the control means is characterized by having a process detector that detects speed/temperature/moisture during the process of conveying, processing, and drying the fabric, a hazardous detector that detects emission of hazardous components from the exhaust member, a fire detector that detects overheating and ignition of the main body, and a thermoelectric generator that generates electricity by recovering exhaust waste heat.

As described above, according to the present invention, in the process of restoring shrinkage in fibers to their original state after the process at a fabric mass production site is carried out, the heating and cooling air of a drying chamber is efficiently and safely controlled, thereby substantially improving quality and productivity.

Figure 1 is a schematic diagram showing the entire system according to the present invention.
Figure 2 is a schematic diagram showing a hot air member of a system according to the present invention.
Figure 3 is a schematic diagram showing a cooling member of a system according to the present invention.
Figure 4 is a block diagram showing the control circuit of the system according to the present invention.

Hereinafter, embodiments of the present invention will be described in detail based on the attached drawings.

The present invention proposes a system for controlling process air of a tenter machine in a mass production site. In particular, it targets an air system of a process for bleaching/dyeing woven fiber fabric (fabric), but is not necessarily limited thereto. Process air refers to air that is injected/expelled during a series of processes.

The main body (10) according to the present invention has a structure including a processing unit (13), a drying chamber (15), and a cooling chamber (17) on a fabric transport path by a transporter (11).

Referring to FIG. 1, a conveyor (11), a processing unit (13), a drying chamber (15), a cooling chamber (17), etc., which constitute a main body (10) are shown. The conveyor (11) conveys a fabric using a conveyor, etc., and spreads and centers the fabric to both sides. The processing unit (13) is equipped with a mangle unit that evenly penetrates a dye into the fabric, an overfeed unit that pulls the fabric to adjust the density, etc. The drying chamber (15) is arranged downstream of the processing unit (13) and evaporates moisture contained in the fabric. The cooling chamber (17) is arranged adjacent to the downstream of the drying chamber (15) and fixes the state of the fabric by applying external air (cold air) to the fabric.

According to the present invention, the hot air member (20) has a structure that causes drying of the fabric by means of a plurality of hot air pipes (21) and a hot air blower (25) provided in the drying chamber (15).

Referring to FIGS. 1 and 2, a hot air pipe (21) and a hot air blower (25) constituting a hot air member (20) are shown on a drying chamber (15). The drying chamber (15) is configured by connecting a plurality of sections in series, and each section is equipped with a hot air pipe (21) and a hot air blower (25). The hot air pipe (21) is arranged to face the upper and lower surfaces of the fabric being transported, and sprays hot air to induce drying of the fabric. The hot air blower (25) can apply various heat sources such as gas and electricity, and sends hot air to the hot air pipe (21) using a blower.

According to the detailed configuration of the present invention, the hot air member (20) is characterized by forming a hole (22) in at least a part of the hot air pipe (21), overlapping a control plate (23) having the hole (22), and causing displacement of the control plate (23) by a control device (27).

In Fig. 2, a control plate (23) and a controller (27) constituting a hot air member (20) are shown on a hot air pipe (21). The bottom surface of the upper hot air pipe (21) facing the fabric and the upper surface of the lower hot air pipe (21) are provided with a plurality of injection holes (nozzles). As shown in the figure, a long hole (22) is formed in a part of the upstream hot air pipe (21) and the control plate (23) is supported so as to be displaceable. The control plate (23) has a long hole (22) of the same size and pattern as the hot air pipe (21) and is maintained in close contact with the surface of the hot air pipe (21) where the long hole (22) is formed. The controller (27) is configured with a motor-ball screw, etc., and causes displacement of the control plate (23). When the control plate (23) is displaced, the injection opening due to the long hole (22) that overlaps vertically changes.

According to this configuration, the amount of hot air sprayed can be varied in a specific area of the hot air pipe (21) depending on the type of fabric, and at the same time, the amount of hot air sprayed can be varied in the remaining area of the hot air pipe (21).

Meanwhile, the control plate (23) is not limited to two locations on the upstream side like a city, but can be installed in more areas. For example, if the control plate (23) is installed on the upstream and downstream sides of the hot air pipe (21), more detailed control is possible.

In addition, according to the present invention, the cooling member (30) has a structure that causes cooling of the fabric by means of a cooler (35) and a cooling air pipe (37) connected to the cooling chamber (17).

Referring to FIGS. 1 and 3, a cooler (35) and a cold air pipe (37) constituting a cooling member (30) are shown on a cooling chamber (17). The cooling chamber (17) can also be configured to be divided into two sections. In this case, one section is cooled using outside air, and the other section is cooled using the cooler (35). The cooler (35) adopts a structure that forms a refrigerant cycle to generate and send out cold air. The cold air pipe (37) is installed to connect from the cooler (35) to the cooling chamber (17) via a union (38). The cold air pipe (37) and the union (38) can also be used in an area that supplies outside air to the cooling chamber (17).

According to the detailed configuration of the present invention, the cooling member (30) is characterized by having a fixed nozzle (31) that sprays cold air at a fixed position, a movable nozzle (32) that sprays cold air in a position-changeable manner, and a movable member (33) that causes displacement of the movable nozzle (32).

In Fig. 3, a fixed nozzle (31), a movable nozzle (32), a movable part (33), etc., which constitute a cooling member (30) are shown. The fixed nozzle (31) can be configured using a spray pipe having a length that covers the width of the fabric. The fixed nozzle (31) sprays outside air or cold air through the nozzle of the spray pipe at a fixed position. The movable nozzle (32) can also be configured using a spray pipe like the fixed nozzle (31) and is supported so as to be positionally variable by interposing a movable part (33). The movable part (33) is configured with a part that supports the linear motion of the movable nozzle (32) and a part that induces motion using a motor-ball screw, etc.

According to this configuration, cold air is added to the fixed nozzle (31) and the movable nozzle (32) depending on the type of fabric, and when more detailed control is required, the position of the movable nozzle (32) is changed using the movable unit (33).

In addition, according to the present invention, the exhaust member (40) is structured to purify with a filter (45) and a dust collector (47) while arranging an exhaust duct (41) on the upper side of the drying chamber (15).

In Fig. 1, the filter (45) and the dust collector (47) constituting the exhaust member (40) are shown on the upper side of the drying chamber (15). While the fabric passes through the drying chamber (15), a large amount of vapor and dust are generated. The exhaust duct (41) is arranged on the upper side of the drying chamber (15) and collects each exhaust from a section of the drying chamber (15) and sends it to the flue (42). The filter (45) primarily collects the vapor and dust in the exhaust duct (41) to reduce the burden on the dust collector (47) and prevent fire. More than 80% of tenter fires are caused by the accumulation of foreign substances in the hot air pipe (21) and the dust collector (47). The dust collector (47) applies a cyclone method, an electric dust collector method, etc. so as to be differentiated from the filter (45).

According to the detailed configuration of the present invention, the exhaust member (40) is characterized by forming a filter (45) by laminating a metal material and a felt material, and displaceably supporting two filter materials (45) on a filter frame (44).

In Fig. 1, a state in which a filter chamber (43) is installed in an exhaust duct (41) between an exhaust duct (41) and a flue (42) is shown. The filter chamber (43) supports a filter frame (44) equipped with a filter (45) so as to be slidably displaced. The filter (45) is composed of a metal material on the upstream side and a felt material on the downstream side, and separates vapor through the metal material and absorbs dust through the felt material. In the drawing, the filter chamber (43) is divided into a central area, a left area, and a right area, and is connected to the flue (42) in the central area. The filter frame (44) is equipped with two filter media (45) corresponding to the two areas of the filter chamber (43). While the filter media (45) on one side is in operation in the central area of the filter chamber (43), the filter media (45) on the other side is maintained in a standby state. When replacement of the filter material (45) is required, the filter material (45) can be replaced by sliding and displacing only the filter frame (44) without stopping the process.

In addition, according to the present invention, the control means (50) is structured to connect the main body (10), the hot air member (20), the cooling member (30), and the exhaust member (40) to the controller (51) and control them using a set algorithm.

Referring to FIGS. 1 and 5, a control means (50) is connected to a main body (10), a hot air member (20), a cooling member (30), and an exhaust member (40) based on a controller (51). The controller (51) is composed of a microcomputer circuit having a microprocessor, a memory, and an input/output interface. The algorithm of the controller (51) is stored in the memory in the form of a program and data and is executed by the microprocessor. The algorithm of the controller (51) also includes general control for the main body (10), the hot air member (20), the cooling member (30), and the exhaust member (40).

According to the detailed configuration of the present invention, the control means (50) is characterized by having a process detector (53) that detects speed/temperature/moisture during the process of conveying, processing, and drying fabric, a hazardous detector (54) that detects emission of hazardous components from the exhaust member (40), a fire detector (55) that detects overheating and ignition of the main body (10), and a thermoelectric generator (57) that generates electricity by recovering exhaust waste heat.

In FIG. 1 and FIG. 5, a state in which a process detector (53), a hazardous detector (54), a fire detector (55), a thermoelectric element detector (57), etc. are connected to a controller (51) is shown. A process detector (53), a hazardous detector (54), a fire detector (55), etc. are connected to an input interface of the controller (51). A conveyor (11), a regulator (27), an actuator (33), a cooler (35), etc. are connected to an output interface of the controller (51). The process detector (53) detects speed, temperature, moisture, etc. during the conveying, processing, and drying processes of fabric. The hazardous detector (54) detects whether environmentally hazardous gases are generated from an exhaust duct (41), etc. The fire detector (55) detects overheating and ignition during the entire process using a thermal imaging camera, etc. The thermoelectric element detector (57) absorbs waste heat from the exhaust duct (41) to generate electricity and can provide power to a cooler (35), etc. The thermoelectric element detector (57) helps improve energy efficiency while taking up a relatively small space in the exhaust duct (41), etc.

As an example of operation, the controller (51) performs a series of processes while transporting the fabric under set conditions, controls hot air applied to the fabric through the regulator (27) of the drying chamber (15), controls cold air applied to the fabric through the actuator (33) of the cooling chamber (17), and generates an alarm when an abnormality in the process or the occurrence of a fire is detected.

The present invention is not limited to the described embodiments, and it is obvious to those skilled in the art that various modifications and variations can be made without departing from the spirit and scope of the present invention. Accordingly, such modifications or variations should fall within the scope of the claims of the present invention.

10: Body 11: Transporter
13: Processing machine 15: Drying chamber
17: Cooling chamber 20: Hot air member
21: Hot air balloon 22: Jang Gong
23: Control panel 25: Heater
27: Regulator 30: Cooling element
31: Fixed nozzle 32: Movable nozzle
33: actuator 35: cooler
37: Cold air pipe 38: Union
40: Exhaust member 41: Exhaust duct
42: Year 43: Filtration chamber
44: Filter frame 45: Filter material
47: Dust collector 50: Control means
51: Controller 53: Process Detector
54: Hazardous substance detector 55: Fire detector
57: Thermoelectric generator

Claims (5)

In a system for controlling process air of a fabric tenter:
A main body (10) equipped with a processing machine (13), a drying chamber (15), and a cooling chamber (17) on a fabric transport path by a transporter (11);
A hot air member (20) that causes drying of the fabric by means of a plurality of hot air pipes (21) and hot air blowers (25) provided in the drying chamber (15);
A cooling member (30) that causes cooling of the fabric by means of a cooler (35) and a cooling air pipe (37) connected to the above cooling chamber (17);
An exhaust duct (41) is placed on the upper side of the drying chamber (15), and an exhaust member (40) that purifies with a filter (45) and a dust collector (47); and
A process air control system for a fabric tenter, characterized in that it comprises a control means (50) that controls the main body (10), hot air member (20), cooling member (30), and exhaust member (40) by connecting them to a controller (51) using a set algorithm. In claim 1,
A process air control system for a fabric tenter, characterized in that the hot air member (20) forms a hole (22) in at least a part of the hot air pipe (21), overlaps a control plate (23) having the hole (22), and causes displacement of the control plate (23) by a control device (27). In claim 1,
A process air control system for a fabric tenter, characterized in that the cooling member (30) comprises a fixed nozzle (31) that sprays cold air at a fixed location, a movable nozzle (32) that sprays cold air so that the location can be changed, and a movable member (33) that causes displacement of the movable nozzle (32). In claim 1,
A process air control system for a fabric tenter, characterized in that the exhaust member (40) forms a filter (45) by laminating a metal material and a felt material, and supports two filter materials (45) on a filter frame (44) so as to be displaceable. In claim 1,
The above control means (50) is a process air control system for a fabric tenter, characterized in that it comprises a process detector (53) for detecting speed/temperature/moisture during the transport, processing, and drying processes of the fabric, a hazardous detector (54) for detecting emission of hazardous substances from the exhaust member (40), a fire detector (55) for detecting overheating and ignition of the main body (10), and a thermoelectric generator (57) for generating electricity by recovering exhaust waste heat.