Anti-curling open-width pad dyeing dryer

Abstract

The utility model discloses an anti-curling open-width pad dyeing dryer which comprises a dip dyeing device, a padder and a drying device which are sequentially arranged from front to back according to a fabric conveying path, and the padder is provided with a padder cloth inlet end and a padder cloth outlet end. An edge unfolding assembly used for unfolding the edge of the fabric is installed between the dip dyeing device and the padder, and the edge unfolding assembly is arranged close to the padder. An edge blowing device is installed below a fabric at the fabric feeding end of the padder, the edge blowing device is communicated with a mangle system pipeline, the edge blowing device comprises a main pipe, nozzles are installed at the two ends of the main pipe, and the nozzles are arranged towards the edge of the fabric at the fabric feeding end of the padder. The edge blowing device communicated with the liquid supply system achieves edge blowing with liquid, the high-pressure spraying liquid enables the edge of the fabric subjected to edge unfolding through the edge unfolding assembly to be fully unfolded before the fabric enters the padder, hemming is reduced, and the effect of supplementing mangle liquid to prevent mangle liquid loss is achieved.

Description

Technical Field

[0001] This utility model relates to the field of printing and dyeing machinery and equipment, and in particular to a flat-width dyeing and drying machine with anti-curling properties. Background Technology

[0002] Pad dyeing is a common continuous dyeing process. After the fabric is immersed in the dye liquor, it needs to undergo intermediate drying (pre-drying) to remove some moisture. This prevents dye migration or hydrolysis caused by excessive moisture during subsequent steaming or baking for color fixation. It also improves the fabric's heating efficiency and shortens processing time. This process helps to achieve higher color fixation rates and colorfastness.

[0003] The dryer used in pad dyeing is divided into three zones according to the process flow: the dyeing zone, the padding zone, and the drying zone. For fabrics prone to edge curling, during the dyeing stage in the dyeing zone, before entering the padding machine after dyeing, and after padding into the drying zone, the fabric passes through multiple guide rollers, overfeed mechanisms, and edge-peeling mechanisms. Because the edges of the fabric lack restraint, the yarns try to straighten under the pull of the guide rollers, leading to edge curling. This phenomenon causes uneven heating between the middle and edges of the fabric, thus affecting the quality of subsequent products. Therefore, it is urgent to improve the existing dryer to enhance product quality. Utility Model Content

[0004] The purpose of this utility model is to provide a flat-width dyeing and drying machine that prevents edge curling.

[0005] The technical solution to achieve the purpose of this utility model is: a flat-width pad-dyeing and drying machine for preventing edge curling, comprising a dyeing device, a padding car, and a drying device arranged sequentially from front to back along the fabric conveying path. The padding car has a padding car inlet end and a padding car outlet end, and the padding car includes two tangential rollers. An edge-spreading assembly for unfolding the edges of the fabric is installed between the dyeing device and the padding car, and the edge-spreading assembly is positioned close to the padding car. An edge-blowing device is installed below the fabric on the side of the padding car inlet end, and the edge-blowing device is connected to the padding liquid system pipeline. The edge-blowing device includes a main pipe, and nozzles are installed at both ends of the main pipe, with the nozzles facing the edge of the fabric at the edge-spreading outlet end. The edge-spreading assembly unfolds the edges of the fabric on it, and the edge-blowing device connected to the liquid supply system achieves edge-blowing with liquid. The high-pressure spray liquid not only fully unfolds the edges of the fabric before entering the padding car to prevent edge curling, but also replenishes the padding liquid and prevents padding liquid loss.

[0006] Furthermore, the edge-spreading assembly has an edge-spreading feed end. The edge-spreading assembly includes an arc-shaped plate fixed on the frame. The central axis of the arc-shaped plate is parallel to the axial direction of the roll. A first filament-splitting unit and a second filament-splitting unit are respectively arranged on both sides of the arc-shaped plate with the center of the upper surface of the arc-shaped plate as a reference. The first filament-splitting unit includes several arc-shaped first filaments arranged parallel and spaced along the length direction of the arc-shaped plate. The second filament-splitting unit includes several arc-shaped second filaments arranged parallel and spaced along the length direction of the arc-shaped plate. The projection of any first filament and any second filament on the horizontal plane forms a figure-eight shape that expands outward from the edge-spreading feed end to the roll feed end.

[0007] Furthermore, a branch hose is installed at each end of the main pipe, and the branch hose has a water outlet end. The nozzle is installed at the water outlet end of the hose. Next to each branch hose, a nozzle adjustment mechanism for adjusting the nozzle position is installed. The nozzle adjustment mechanism includes a sleeve, a clamp, and a baffle plate. The sleeve is detachably fitted onto the main pipe. The clamp is fixedly installed on the side of the sleeve near the nozzle. The water outlet end of the hose is clamped and fixed by the clamp. The baffle plate is located on the outer side of the edge of the fabric and is fixedly connected to the sleeve.

[0008] Furthermore, the drying device has a drying feed end, which is equipped with a needle plate chain assembly and an edge detector. The fabric exit end of the roller press is adjacent to the drying feed end, and the fabric conveying path between the roller press exit end and the drying feed end is a straight line. This utility model's anti-curling flat-width dyeing and drying machine eliminates the traditional guide rollers and overfeed mechanisms between the pressing zone and the drying zone. After pressing, the fabric directly enters the drying zone onto the needle plate in a straight line, effectively preventing edge curling before entering the drying zone, ensuring uniform drying, and improving production efficiency.

[0009] Furthermore, an upper needle support plate for supporting the fabric is installed between the fabric exit end of the rolling mill and the fabric inlet end of the drying machine. The upper needle support plate is located below the conveying path at the edge of the fabric. Adding an upper needle support plate can further prevent the fabric from curling in front of the upper needle plate.

[0010] Furthermore, the edge probe has a fabric edge probe, the upper needle support plate is located in the optical path of the fabric edge probe, and the upper needle support plate has a through hole to make way for the optical path of the fabric edge probe.

[0011] Furthermore, the dyeing apparatus includes a push-pull feed trough, in which two active rollers are horizontally mounted. Above the two active rollers is a movable and pressurizable passive roller, which is tangent to the two active rollers during operation. After the fabric is dipped in the feed trough, it undergoes a two-dip, two-paste pressing process, which improves the saturation of the dye and enhances the quality. During operation in the feed trough, most of the fabric is covered by the roller surface, effectively preventing edge curling.

[0012] Furthermore, the drying room includes a drying oven with three drying zones arranged from top to bottom. The uppermost drying zone is equipped with the needle plate chain assembly, and the remaining two drying zones are each equipped with a mesh belt conveyor. The drying oven is designed with a three-layer fabric feeding system, including one layer of needle clamps and two layers of mesh belts, using a hot air drying method that combines tight and loose connections. This achieves high drying thermal efficiency and improves drying quality.

[0013] The present invention provides a flat-width pad dyeing and drying machine with anti-curling edge. The edge spreading component spreads the edge of the fabric, and the edge blower connected to the liquid supply system realizes liquid-blowing edge. The high-pressure spray liquid not only makes the edge of the fabric fully spread before entering the padding car to prevent curling, but also has the effect of replenishing padding liquid and preventing padding liquid loss. Attached Figure Description

[0014] Figure 1 This is a simplified structural diagram of the anti-rolling flat-width dyeing and drying machine according to an embodiment of the present invention, wherein the arrows represent the fabric conveying path;

[0015] Figure 2 for Figure 1 A magnified structural diagram of part A in the middle;

[0016] Figure 3 This is a schematic diagram of the installation structure of the rolling mill, edge-spreading assembly, edge blower, and upper needle support plate described in an embodiment of this utility model;

[0017] Figure 4 This is a schematic diagram of the front view structure of the edge-spreading component according to an embodiment of the present utility model;

[0018] Figure 5 This is a schematic diagram of the structure of the edge blower described in an embodiment of the present utility model. Detailed Implementation

[0019] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0020] like Figure 1 and Figure 2As shown, a flat-width pad-dyeing and drying machine for preventing edge curling includes a dyeing device 1, a padding car 2, and a drying device 3 arranged sequentially from front to back along the conveying path of the fabric 100. The padding car 2 has a padding car inlet end 201 and a padding car outlet end 202. The padding car 2 includes two vertically tangent rollers 21, which are inclined relative to each other towards the padding car inlet end 201. The drying device has a drying inlet end 301, on which a needle plate chain assembly 31 and an edge probe 32 are horizontally mounted. The padding car outlet end 202 and the drying inlet end 301 are adjacent to each other, and the fabric conveying path between the padding car outlet end 202 and the drying inlet end 301 is a straight line.

[0021] like Figure 3 and Figure 4 As shown, a spreading assembly 4 is installed between the dyeing device 1 and the rolling mill 2, and the spreading assembly 4 is positioned close to the rolling mill 2; the spreading assembly 4 has a spreading fabric infeed end 401, and the spreading assembly 4 includes an arc-shaped plate 41 fixed on the frame, the central axis of the arc-shaped plate 41 being parallel to the axial direction of the rolling mill 21, and a first filament splitting unit 42 and a second filament splitting unit 42 are respectively arranged on both sides of the arc-shaped plate 41 with the center of the upper surface 411 of the arc-shaped plate 41 as a reference. Unit 43, the first filament unit 42 includes several arc-shaped first filaments 421 arranged parallel to each other and at equal intervals along the length direction of the arc plate 41, and the second filament unit 43 includes several arc-shaped second filaments 431 arranged parallel to each other and at equal intervals along the length direction of the arc plate 41. The projection of any first filament 421 and any second filament 431 on the horizontal plane forms a figure-eight shape that expands outward from the edge-spreading fabric inlet end 401 to the rolling mill fabric inlet end 201.

[0022] like Figure 3 and Figure 5As shown, an edge blower 5 is installed below the fabric on the side of the fabric inlet end 201 of the rolling mill. The edge blower 5 includes a main pipe 51, which is connected to a liquid supply system (not shown). A branch hose 52 is installed at each end of the main pipe 51. Each branch hose 52 has a hose outlet 521, and a nozzle 53 is installed at the hose outlet 521. Next to each branch hose 52, a nozzle adjustment mechanism 54 for adjusting the position of the nozzle 53 is installed. The nozzle adjustment mechanism 54 includes a sleeve 541 and a clamp. The device includes a clamp 542 and a baffle plate 543. The sleeve 541 is fitted onto the main pipe 51 and connected to the main pipe 51 by bolts 544. The clamp 542 is fixedly installed on the side of the sleeve 541 near the nozzle 53. The water outlet end 521 of the hose is clamped and fixed by the clamp 542. The baffle plate 543 is located on the outside of the edge of the fabric 100. The baffle plate 543 is fixedly connected to the sleeve 541. The nozzle 53 is arranged facing the edge of the fabric 100 at the edge of the unfolded fabric outlet end 402.

[0023] Furthermore, such as Figure 2 and Figure 3 As shown, the edge probe 32 has a fabric edge probe 321. An upper needle support plate 6 for supporting the fabric is installed between the fabric exit end 202 of the rolling mill and the fabric inlet end 301 of the drying mill. The upper needle support plate 6 is located below the conveying path of the edge of the fabric 100 and in the optical path of the fabric edge probe 321. The upper needle support plate 6 has a through hole (not shown) to make way for the optical path of the fabric edge probe 321.

[0024] like Figure 1 As shown, the dyeing apparatus includes a push-pull material tank 11, in which two active rollers 12 are horizontally installed. Above the two active rollers 12, a passive roller 13 that can be raised and lowered and can apply pressure is installed. During operation, the passive roller 13 is tangent to the two active rollers 12 respectively.

[0025] like Figure 1 As shown, the drying device 3 also includes an oven 33, which has three drying zones 331 arranged from top to bottom. The uppermost drying zone 331 is equipped with the needle plate chain assembly 31, and the remaining two drying zones 3231 are equipped with mesh belt conveyors 34.

[0026] The working principle of the anti-curling flat-width dyeing and drying machine implemented by this utility model is as follows:

[0027] After the fabric is fed into the fabric feed rack, it is sequentially dipped and rolled around the active rollers 12 and passive rollers 13 of the dyeing device. After dipping and rolling, it enters the rolling mill 2 through the upper surface of the arc plate 41 for pressing. The projection of any first filament 421 and any second filament 431 on the horizontal plane forms a figure-eight shape that expands outward from the edge-spreading feed end 401 to the edge-spreading output end 402, thus spreading the fabric edge. The edge blower 5 sprays high-pressure liquid from below to the edge of the fabric 100 to prevent fabric curling and liquid loss. Then, the fabric 100 passes through the rolling mill 21 for pressing and rolling and directly enters the drying oven 33 onto the needle plate. The anti-curling flat-width pad-dyeing and drying machine implemented in this embodiment improves production efficiency through the anti-curling design of three dipping and rolling positions.

[0028] The edge-spreading component structure described in this utility model is not limited to the embodiment shown. A splitting roller can also be used for edge spreading, but the contact area of ​​the fabric on the curved plate is larger and the edge spreading effect is better.

[0029] The structure of the blower is not limited to that shown in the embodiment, and the nozzle adjustment mechanism makes the nozzle position adjustable.

[0030] The rolling mill roll structure is not limited to an inclined setting; the rolls can be set vertically or horizontally.

[0031] The structure of the dyeing device is not limited to the active roller and passive roller tangential structure shown in the embodiment. The upper and lower guide rollers can be separated by a certain distance, but the tangential structure ensures that most of the fabric is covered on the roller surface when running in the feed trough, which can better avoid edge curling.

[0032] The upper needle support plate is set as needed. Adding an upper needle support plate can further prevent the fabric from curling at the front of the upper needle plate and improve work efficiency.

[0033] The oven structure described in this utility model is not limited to the embodiment shown. When the oven is designed with a three-layer fabric feeding method, including a needle clamp and two layers of mesh belts in a tight and loose combination of hot air drying, a higher drying thermal efficiency can be achieved and the drying quality can be improved.

[0034] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent process transformations made using the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A flat-width pad-dyeing and drying machine for preventing edge curling, comprising a dyeing device, a padding car, and a drying device arranged sequentially from front to back along the fabric conveying path, wherein the padding car has a padding car inlet end and a padding car outlet end, and the padding car includes two tangential rollers; characterized in that: An edge-spreading assembly for spreading the edge of the fabric is installed between the dyeing device and the rolling mill. The edge-spreading assembly is located close to the rolling mill. An edge-blowing device is installed below the fabric on the fabric feeding end side of the rolling mill. The edge-blowing device is connected to the dyeing liquid system pipeline. The edge-blowing device includes a main pipe, and nozzles are installed at both ends of the main pipe. The nozzles are arranged toward the edge of the fabric at the edge-spreading exit end.

2. The anti-curling flat-width dyeing and drying machine according to claim 1, characterized in that: The edge-stretching assembly has an edge-stretching feed end. The edge-stretching assembly includes an arc-shaped plate fixed on the frame. The central axis of the arc-shaped plate is parallel to the axial direction of the roll. A first filament-splitting unit and a second filament-splitting unit are respectively arranged on both sides of the arc-shaped plate with the center of the upper surface of the arc-shaped plate as a reference. The first filament-splitting unit includes several arc-shaped first filaments arranged parallel and spaced along the length direction of the arc-shaped plate. The second filament-splitting unit includes several arc-shaped second filaments arranged parallel and spaced along the length direction of the arc-shaped plate. The projection of any first filament and any second filament on the horizontal plane forms a figure-eight shape that expands outward from the edge-stretching feed end to the roll feed end.

3. The anti-curling flat-width dyeing and drying machine according to claim 1, characterized in that: A branch hose is installed at each end of the main pipe. The branch hose has a water outlet end, and the nozzle is installed at the water outlet end of the hose. Next to each branch hose is a nozzle adjustment mechanism for adjusting the position of the nozzle. The nozzle adjustment mechanism includes a sleeve, a clamp, and a baffle plate. The sleeve is detachably fitted onto the main pipe. The clamp is fixedly installed on the side of the sleeve near the nozzle. The water outlet end of the hose is clamped and fixed by the clamp. The baffle plate is located on the outer edge of the fabric and is fixedly connected to the sleeve.

4. The anti-curling flat-width dyeing and drying machine according to claim 1, characterized in that: The drying device has a drying feed end, which is equipped with a needle plate chain assembly and an edge detector. The fabric feed end of the rolling mill is adjacent to the drying feed end, and the fabric conveying path between the rolling mill feed end and the drying feed end is a straight line.

5. The anti-curling flat-width dyeing and drying machine according to claim 4, characterized in that: An upper needle support plate for supporting the fabric is installed between the fabric exit end of the rolling mill and the fabric inlet end of the drying mill. The upper needle support plate is located below the conveying path at the edge of the fabric.

6. The anti-curling flat-width dyeing and drying machine according to claim 5, characterized in that: The edge probe has a fabric edge probe, and the upper needle support plate is located in the optical path of the fabric edge probe. The upper needle support plate has a through hole to make way for the optical path of the fabric edge probe.

7. The anti-curling flat-width dyeing and drying machine according to claim 1, characterized in that: The dyeing apparatus includes a push-pull material tank, in which two active rollers are horizontally installed. Above the two active rollers is a passive roller that can be raised, lowered, and pressurized. During operation, the passive roller is tangent to the two active rollers respectively.

8. The anti-curling flat-width dyeing and drying machine according to claim 4, characterized in that: The drying device also includes a drying oven, which has three drying zones arranged from top to bottom. The uppermost drying zone is equipped with the needle plate chain assembly, and the remaining two drying zones are equipped with mesh belt conveyors.

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