Device for reducing cloth edge looseness of grey cloth after water washing and heat setting

Abstract

The utility model relates to a device for reducing cloth edge looseness of grey cloth after water washing and heat setting, which is characterized in that a needle-plate-free drying room is arranged between a water washing tank and a heating roller of a traditional refining device and comprises a heat exchanger which is arranged inside the needle-plate-free drying room and is communicated with an external steam source; the air feeder and the exhaust fan are installed on the top of the needle-plate-free drying room, the conical air pipe and the air grooves are installed in the needle-plate-free drying room, the conical air pipe receives supplied air from the air feeder and is provided with a plurality of air supply outlets, and the air grooves are communicated with the air supply outlets respectively. And the plurality of cloth guide rollers are arranged in the needle-plate-free drying room, the plurality of cloth guide rollers and the plurality of air grooves are alternately arranged, and the exhaust fan is used for exhausting waste gas in the needle-plate-free drying room. According to the utility model, the fabric edge looseness of the gray fabric in the refining processing process can be alleviated, so that the product quality and physical property effect are improved.

Description

Technical Field

[0001] This utility model relates to the field of textile machinery, and in particular to a device applied to the washing and heat-setting process of greige fabric. This device can reduce selvage loosening of the greige fabric during the refining process, thereby improving product quality and physical properties. Background Technology

[0002] The greige fabric coming off the loom often undergoes a washing and heat-setting process. The main purpose of this process is to reduce surface contamination from oils and other substances, increase dimensional stability, and improve the fabric's physical properties. The washing and heat-setting process mainly consists of greige fabric feeding, fabric storage, washing tank, roller heat setting, fabric storage, and take-up. Existing refining equipment such as... Figure 1 As shown. The grey fabric enters the first fabric storage container 20 via the unwinding device 10, and then enters the first washing tank 41 and the second washing tank 42 via the refining tank 30. Although in Figure 1 Two washing tanks are shown, but more or fewer can be used as needed. The greige fabric exiting the second washing tank 42 is then heat-set via rollers 50. Although in Figure 1 Eight rollers are shown, but more or fewer rollers can be used depending on actual needs. The fabric exiting roller 50 is then cooled by two cooling rollers 60. Although in Figure 1 Two cooling rollers are shown, but more or fewer rollers can be used depending on actual needs. After passing through the second storage unit 70, the cloth reaches the winding device 81 or 82 for winding.

[0003] However, when using the aforementioned washing equipment, for fabrics with severe frilly edges and relatively soft texture, the edges become loose and cannot adhere to the rollers after being heated and set in the washing drums due to moisture. Even if they do adhere, the edge condition is inconsistent with the center, resulting in uneven fabric properties. This unevenness leads to dimensional deviations during cutting, causing significant waste. To improve the loose fabric texture and enhance quality and properties, the existing equipment needs improvement. Utility Model Content

[0004] This utility model provides a device for reducing fabric looseness. Its main purpose is to improve the shortcomings of existing devices, thereby effectively reducing fabric looseness during the production process, improving appearance quality and physical properties, and with low cost.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows: a device for reducing the loosening of the fabric edge after washing and heat setting, comprising an unwinding device, a first fabric holder, a refining tank, a washing tank, a heating roller, a cooling roller, a second fabric holder, and a winding device, characterized in that: the device for reducing the loosening of the fabric edge after washing and heat setting further includes a needle-free plate drying chamber disposed between the washing tank and the heating roller, the needle-free plate drying chamber including a heat exchanger installed inside the needle-free plate drying chamber, the heat exchanger being connected to an external steam... The equipment includes: a steam source connection; a blower and an exhaust fan installed on the top of the needle-free plate drying oven; a conical air duct installed inside the needle-free plate drying oven, the conical air duct receiving air from the blower and having multiple air outlets; multiple air ducts installed inside the needle-free plate drying oven, the multiple air ducts being connected to the multiple air outlets respectively; and multiple guide rollers installed inside the needle-free plate drying oven, the multiple guide rollers being alternately arranged with the multiple air ducts, and the exhaust fan being used to discharge the waste gas in the needle-free plate drying oven.

[0006] The needle-free drying oven in this application is in contrast to the traditional needle-plate drying oven, meaning a drying oven without a needle plate.

[0007] In this invention, a heat exchanger supplies heat, and a blower located at the top of the needleless drying chamber blows air into a conical duct, which then passes through multiple air ducts to evenly distribute the air to the fabric passing through the guide rollers inside the needleless drying chamber. The exhaust gas from heating the fabric is then discharged from the needleless drying chamber by an exhaust fan.

[0008] In one specific implementation, four heat exchangers are arranged at the four corners inside the needle-free plate drying chamber. This arrangement facilitates the uniform distribution of heat.

[0009] In one specific embodiment, the needleless plate drying chamber is provided with a first curved guide roller at the entrance and a second curved guide roller at the exit, and the curvature of each of the first and second curved guide rollers is adjustable.

[0010] In one specific implementation, the heat exchanger is connected to an external steam source via an automatic pressure regulating valve.

[0011] This invention effectively reduces fabric loosening during production and improves appearance quality and physical properties by adding a specially designed needle-free drying chamber that can uniformly heat and dehumidify the fabric from the washing tank. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of an existing water washing and heat setting device.

[0013] Figure 2This is a schematic diagram of a device for reducing loosening and wrinkling of fabric edges after washing and heat setting according to this utility model.

[0014] Figure 3 yes Figure 2 A schematic diagram of the needle-free drying oven according to the present invention, viewed from direction AA.

[0015] Figure 4 yes Figure 2 A schematic diagram of the top view of the needle-free drying oven of this utility model after removing the top part. Detailed Implementation

[0016] The present invention will now be further described with reference to the accompanying drawings. It should be understood that the embodiments shown in the drawings are for illustrative purposes only and should not be construed as limiting the present invention in any way. The scope of the present invention is defined by the appended claims.

[0017] It should be understood that the accompanying drawings of this utility model are only for illustration and are not necessarily drawn to scale.

[0018] It should also be understood that directional terms that may appear in this utility model, such as "above", "below", "right", "left", "front", "back", "bottom", "top", "upper part", "lower part", etc., are only for the convenience of describing this utility model and should not be interpreted as a limitation of this utility model in any way.

[0019] Reference Figure 1 , Figure 2 The device in this utility model for reducing the loosening of the fabric edge after water washing and heat setting ( Figure 2 ) and existing water washing heat setting equipment ( Figure 1 The key difference is that a specially designed needle-free drying chamber 90 is added between the washing tank (composed of washing tanks 41 and 42, but not limited to these; one or more washing tanks may also be used) and the heat setting roller.

[0020] Simultaneously refer to Figure 3 . Figure 3 A schematic diagram of a needle-free plate drying chamber is shown in view AA. The needle-free plate drying chamber 90 includes heat exchangers 911 and 912 installed on both sides of the interior of the chamber. Heat exchangers 911 and 912 are connected to an external steam source to provide heating steam. Heat exchangers 911 and 912 are preferably connected to the external steam source via automatic pressure regulating valves. Those skilled in the art will understand that the number of heat exchangers is not limited to two; one or more heat exchangers may be used. Preferably... Figure 4 As shown, four heat exchangers 911, 912, 913, and 914 are installed at the four corners of the needle-free plate drying chamber 90 to provide more uniform heating.

[0021] The needle-free board drying oven 90 also includes a blower 92 and an exhaust fan 97 installed on the top of the oven, and conical air ducts 931 and 932 installed inside the oven. The conical air ducts 931 and 932 receive air from the blower 92 through blower interfaces 921 and 922, respectively, and each conical air duct 931 and 932 has multiple air outlets (not shown). Multiple air ducts 96, such as but not limited to slit-type air ducts, are also provided inside the needle-free board drying oven 90, and each air duct 96 is connected to multiple air outlets.

[0022] In this application, a tapered duct refers to a duct that runs from top to bottom (see [reference]). Figure 3 This type of duct has a gradually decreasing cross-sectional area. This duct can ensure that the air supply pressure remains basically constant, thus ensuring the air supply effect.

[0023] The needleless drying oven 90 is also equipped with multiple guide rollers 94. The multiple guide rollers 94 are alternately arranged with multiple air ducts 96 to fully and evenly blow air to dry the fabric passing through the multiple guide rollers 94.

[0024] The exhaust fan 97 is used to exhaust the waste gas inside the needleless plate drying room 90.

[0025] In this application, external steam enters the heat exchanger through an automatic pressure regulating valve, hot air is sent into the conical air duct by a blower, enters the air channel through the air outlet of the conical air duct, and then enters the needleless board drying room through the air channel to heat and dry the fabric. Finally, the exhaust gas is extracted and discharged by an exhaust fan.

[0026] like Figure 4 The needleless drying chamber 80 shown may have a first curved guide roller 95 at its entrance and a second curved guide roller 98 at its exit. The curvature of each of the first and second curved guide rollers is adjustable.

[0027] The needleless drying oven 90 specially designed in the above embodiments can uniformly heat and dehumidify the greige fabric from the washing tanks 41 and 42, thereby effectively reducing the fabric relaxation phenomenon that occurs in the existing production process and improving the appearance quality and physical properties.

[0028] Based on the description of the preferred embodiments of the present invention, it should be clear that the present invention as defined by the appended claims is not limited to the specific details set forth in the above description, and many obvious changes to the present invention without departing from the spirit or scope of the present invention may also achieve the purpose of the present invention.

Claims

1. A device for reducing selvage looseness of greige fabric after washing and heat setting, comprising an unwinding device, a first fabric holder, a refining tank, a washing tank, a heating roller, a cooling roller, a second fabric holder, and a winding device, characterized in that: The device for reducing the loosening of the fabric edge after washing and heat setting also includes a needle-free plate drying chamber disposed between the washing tank and the heating roller. The needle-free plate drying chamber includes a heat exchanger installed inside the drying chamber and connected to an external steam source; a blower and an exhaust fan installed on the top of the drying chamber; a conical air duct installed inside the drying chamber, the conical air duct receiving air from the blower and having multiple air outlets; multiple air ducts disposed inside the drying chamber, the multiple air ducts being connected to the multiple air outlets respectively; and multiple guide rollers installed inside the drying chamber, the multiple guide rollers and the multiple air ducts being alternately arranged. The exhaust fan is used to discharge the waste gas in the needle-free plate drying chamber.

2. The device for reducing the loosening of the fabric edge after washing and heat setting according to claim 1, characterized in that: There are four heat exchangers, which are respectively located in the four corners of the needle-free plate drying room.

3. The device for reducing the loosening of the fabric edge after washing and heat setting according to claim 1, characterized in that: The needleless drying chamber is provided with a first curved guide roller at the entrance and a second curved guide roller at the exit. The curvature of each of the first and second curved guide rollers is adjustable.

4. The device for reducing the loosening of the fabric edge after washing and heat setting according to claim 1, characterized in that: The heat exchanger is connected to an external steam source via an automatic pressure regulating valve.

5. The device for reducing the loosening of the fabric edge after washing and heat setting according to claim 1, characterized in that: The multiple air ducts are slit-type air ducts.

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