Drying device for printed cloth

Abstract

The invention relates to the technical field of drying devices, in particular to a drying device for printed cloth, a drying box is used for providing a hot drying environment for the cloth and comprises a box body, a plurality of hot air circulating fans oppositely arranged on the lower side of the side wall of the box body and a plurality of combustors for providing heat; the conveying mechanism is used for conveying cloth in the drying box and comprises a support arranged in a box body and an upper net belt conveying assembly, a middle net belt conveying assembly and a lower net belt conveying assembly which are arranged on the support, and the cloth is conveyed in a snakelike mode through the net belt conveying assemblies. The air supply mechanism is arranged on the upper side of each group of horizontally conveyed cloth and is used for applying downward air pressure to the surface of the cloth; the atomized air applicator is used for permeating and infiltrating the cloth; hot air is stably conveyed through the hot air circulating fan and the combustor, the atomized air applicator is arranged, atomized air is evenly sprayed to the printed cloth through the air supply mechanism, permeation of dye is accelerated, meanwhile, the sufficient temperature guarantees subsequent cloth drying, the production period is greatly shortened, and the productivity and the product quality are improved.

Description

Technical Field

[0001] The present invention belongs to the field of drying devices, and particularly relates to a drying device for printed fabrics. Background Art

[0002] Printed fabrics are widely welcomed due to their rich colors and pattern designs. However, when printing on thicker or furry fabrics, the dye penetration is poor. For example, polyester plush fabrics have a thick physical structure and are covered with abundant plush fibers on the surface. Such structural characteristics make it difficult for dyes to quickly and fully penetrate into the fabric during the printing process. If the dyes are not fully penetrated and then dried, it is extremely easy to cause uneven dyeing on the fabric surface, resulting in problems such as light colors and color spots, seriously affecting the dyeing effect and aesthetics of the fabric, and reducing the product quality and market competitiveness. In addition, the unpenetrated dyes are likely to fall off due to factors such as friction and washing during subsequent use, affecting the durability of the product.

[0003] Meanwhile, in order to achieve a better dyeing effect, in the prior art, after printing, the fabric is usually left standing under normal temperature and pressure conditions to allow the dyes to penetrate into the fabric, and then the fabric is dried. Often, due to poor effects, the printing and drying processes need to be repeated multiple times, which not only increases the production time and cost but also causes waste of energy and resources.

[0004] In the process of solving the problem, the R & D personnel tried to spray atomized air on the fabric through an air knife at normal temperature. However, since the atomized air is likely to liquefy and form water droplets on the surface of the air knife at normal temperature, if the water droplets drip on the fabric surface, it will affect the fabric quality, be unfavorable for the uniformity of fabric printing, and the dyeing effect is poor. Therefore, it is necessary to design a drying device for printed fabrics to solve the above problems. Summary of the Invention

[0005] To solve the above technical problems, the present invention provides a drying device for printed fabrics to solve the problems of poor penetration effect, poor printing effect, and low working efficiency of thicker or furry fabrics in the existing market as described in the above background art.

[0006] To achieve the above object, the technical solution of the present invention is as follows:

[0007] A drying device for printed fabrics, comprising:

[0008] A drying box for providing a hot drying environment for the fabric, including a box body and a plurality of hot air circulation fans and a plurality of burners for providing heat, which are relatively arranged on the lower side of the side wall of the box body;

[0009] A conveying mechanism for conveying fabrics within the box body, including a bracket disposed within the box body and upper, middle, and lower sets of mesh belt conveying components disposed on the bracket, and the fabrics are conveyed in a serpentine manner through the mesh belt conveying components;

[0010] An air supply mechanism is disposed above each set of horizontally conveyed fabrics for applying a downward wind pressure to the fabric surface;

[0011] An atomized air applicator for infiltrating and wetting the fabrics is disposed on the side wall of the box body above the hot air circulation fan, and the output end of the atomized air applicator is aligned with the uppermost air supply mechanism, and the atomized air is applied to the fabric surface along with the air supply mechanism.

[0012] As a further improvement of the present invention, the mesh belt conveying component includes a Teflon mesh belt, a driving roller disposed near the discharge end, a conveying motor for driving the driving roller to rotate, a driven roller disposed near the feed end, a plurality of supporting rollers for supporting the Teflon mesh belt, and a tensioning component for tensioning the Teflon mesh belt. There are also two sets of redirecting rollers between the mesh belt conveying components for helping the fabrics change direction.

[0013] As a further improvement of the present invention, the air supply mechanism includes a plurality of air inlet ducts disposed above each set of horizontally conveyed fabrics, and a plurality of air knives are disposed below each air inlet duct, and the air knives are arranged perpendicular to the fabric conveying direction;

[0014] As a further improvement of the present invention, the air inlet duct becomes narrower from the hot air circulation fan to the burner direction, the cross-section of the air inlet duct is a right triangle, and the lower wall of the air inlet duct is horizontally arranged.

[0015] As a further improvement of the present invention, a plurality of return air ducts are disposed below each set of horizontally conveyed fabrics, and the return air ducts correspond to the air inlet ducts one by one.

[0016] As a further improvement of the present invention, an air extraction device is installed through a pipeline on the side of the uppermost return air duct.

[0017] As a further improvement of the present invention, the downward blowing wind force received by the upper side of the uppermost layer of fabric is greater than the downward suction wind force received by the lower side of the fabric.

[0018] As a further improvement of the present invention, a guiding plate is disposed on the inner wall of the box body below the atomized air applicator, the cross-section of the guiding plate is integrally an obtuse triangle, and the side of the guiding plate away from the atomized air applicator is arranged in an arc shape.

[0019] As a further improvement of the present invention, a plurality of said atomized air applicators are provided at the air inlet end of the air inlet duct on the upper side of the fabric near the discharge end of the middle layer, and the atomized air applicators correspond to the air inlet ducts one by one.

[0020] As a further improvement of the present invention, a heat preservation layer is pasted on the inner wall of the box body.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0022] The present invention sets a hot air circulation fan and a burner to stably convey hot air. At the same time, an atomized air applicator is set to evenly spray atomized air onto the printed fabric through a air supply mechanism to accelerate the penetration of the dye. At the same time, sufficient temperature ensures the subsequent drying of the fabric. It serves two purposes at once, effectively making the dye penetrate and completing the drying of the fabric, greatly shortening the production cycle, improving production capacity and product quality.

[0023] The present invention sets an atomized air applicator and a plurality of air knives above the printed fabric, so that the atomized air blows towards the printed fabric along with the hot air, making the dye floating on the surface of the printed fabric penetrate into the printed fabric. At the same time, the atomized air helps to preserve the color of the print. Compared with the penetration under normal temperature and pressure, the print of this method is more vivid.

[0024] The present invention places the atomized air applicator inside the drying box, and the temperature inside the drying box is sufficient to ensure that the atomized air will not condense into water droplets on the air knife due to low temperature, making the penetration of the dye more uniform.

[0025] The present invention sets an air inlet duct with a right-angled triangle cross-section and a gradually narrowing width, which helps to ensure that the air pressure in the entire air inlet duct is as consistent as possible, making the wind force blowing towards the fabric as uniform as possible, and making the penetration of the dye more uniform.

[0026] The present invention sets a return air duct below the fabric, connects an air extraction device to the return air duct, and makes the wind force of the air extraction device less than the blowing wind force above the fabric, so that the dye penetrates better. At the same time, the smaller air extraction wind force avoids excessive penetration of the dye.

[0027] The present invention sets a guide plate, which first prevents the diffusion of atomized air downward, and at the same time guides the transmission direction of the hot air, making more effective use of the heat of the hot air and preventing the diffusion of heat.

[0028] The present invention sets a plurality of atomized air applicators in the middle layer. If it is found during operation that the penetration is insufficient when the fabric is conveyed to the discharge end of the upper layer, the atomized air applicators in the middle layer can be opened for further penetration printing. Description of the Drawings

[0029] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0030] Figure 1 It is a schematic side view structure diagram of the present invention;

[0031] Figure 2 It is a schematic front view structure diagram of the present invention;

[0032] Figure 3 It is a schematic partial front view structure diagram of the present invention.

[0033] Among them, the names represented by the part numbers in the above 3 schematic diagrams are as follows:

[0034] 1. Box body; 11. Bracket;

[0035] 2. Hot air circulation fan;

[0036] 3. Burner;

[0037] 4. Mesh belt conveyor assembly; 41. Teflon mesh belt; 42. Driving roller; 43. Conveyor motor; 44. Driven roller; 45. Supporting roller; 46. Tensioning assembly; 47. Redirecting roller;

[0038] 5. Air inlet duct; 51. Air knife;

[0039] 6. Atomized air applicator;

[0040] 7. Air return duct; 71. Pipeline;

[0041] 8. Guide plate;

[0042] 9. Heat insulation layer. Specific embodiments

[0043] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0044] The present invention provides the following embodiments:

[0045] A drying device for printed fabrics, comprising:

[0046] A drying oven, which is used to provide a hot drying environment for fabrics, includes a box body 1, a number of hot air circulation fans 2 and a number of burners 3 that are relatively arranged at the lower side of the side wall of the box body 1. The burners 3 provide heat for the entire interior of the box body 1. The heat requirement is determined according to the specific situation of the specific fabric, and the temperature can be adjusted up or down. The hot air circulation fans 2 ensure the hot air circulation inside the box body 1. Similarly, the wind force is determined according to the specific situation of the specific fabric, and the wind force can be adjusted up or down. The inner wall of the box body 1 is pasted with a heat insulation layer 9, and the heat insulation layer 9 helps to prevent the heat dissipation inside the box body 1 and helps to keep the box body 1 warm.

[0047] A conveying mechanism, which is used to convey fabrics in the drying oven, includes a bracket 11 arranged inside the box body 1 and upper, middle and lower groups of mesh belt conveying components 4 arranged on the bracket 11. The fabrics are conveyed in a serpentine shape through the mesh belt conveying components 4. The mesh belt conveying component 4 includes a Teflon mesh belt 41, a driving roller 42 arranged near the discharge end, a conveying motor 43 that drives the driving roller 42 to rotate, a driven roller 44 arranged near the feed end, a number of supporting rollers 45 for supporting the Teflon mesh belt 41, and a tensioning component 46 for tensioning the Teflon mesh belt 41. There are also two turning rollers 47 for helping the fabrics to change direction between the mesh belt conveying components 4. The printed fabrics are fed from the feed end as shown in Figure 2 the figure, and are conveyed in a serpentine shape to the discharge end through the three groups of mesh belt conveying components 4. Among them, the Teflon mesh belt 41 has ventilation holes to help the ventilation and drying of the fabric. The tensioning component 46 helps to adjust the tightness of the Teflon mesh belt 41, and the turning roller 47 helps the fabric to change direction.

[0048] A air supply mechanism, which is arranged above each group of horizontally conveyed fabrics and is used to apply a downward wind pressure to the surface of the fabrics. The air supply mechanism includes a number of air inlet air ducts 5 arranged above each group of horizontally conveyed fabrics. The air inlet air ducts 5 become narrower from the direction of the hot air circulation fans 2 to the burners 3. The cross-section of the air inlet air ducts 5 is a right triangle, and the lower wall of the air inlet air ducts 5 is horizontally arranged.

[0049] A number of air knives 51 are arranged below the air inlet air ducts 5, and the air knives 51 are arranged perpendicular to the fabric conveying direction. By setting the air inlet air ducts 5 with a right triangle cross-section and gradually narrowing width, the present invention helps to ensure that the wind pressure inside the entire air inlet air ducts 5 is as consistent as possible, makes the wind force blowing on the fabric as uniform as possible, and makes the dye penetrate more evenly.

[0050] Below each group of horizontally conveyed fabrics, a plurality of return air ducts 7 are provided, and the return air ducts 7 correspond to the air inlet ducts 5 one by one; a suction device is installed on the side of the uppermost return air duct 7 through a pipeline 71; the downward blowing wind force on the upper side of the uppermost layer of fabric is greater than the downward suction wind force on the lower side of the fabric; in the present invention, by providing a return air duct 7 below the fabric and connecting a suction device to the return air duct 7, and making the wind force of the suction device less than the blowing wind force above the fabric, the dye can penetrate better, and at the same time, the smaller suction wind force can avoid excessive penetration of the dye;

[0051] An atomized air applicator 6 is used to infiltrate the fabric. A fixing agent and a penetrant are also added into the atomized air applicator 6, which helps the fixation and penetration of the dye. The atomized air applicator 6 is arranged on the side wall of the box body 1 above the hot air circulation fan 2, and the output end of the atomized air applicator 6 is aligned with the uppermost air inlet duct 5; at the air inlet end of the air inlet duct 5 on the upper side of the fabric near the discharge end of the middle layer, a plurality of the atomized air applicators 6 are provided, and the atomized air applicators 6 correspond to the air inlet ducts 5 one by one;

[0052] First, the fabric of the first layer mainly performs the work of infiltration and wetting through atomized air. Then, when the fabric is conveyed to the side near the discharge end of the first layer, the staff can observe the condition of the fabric to decide whether to turn on the atomized air applicator 6 of the second layer. If the penetration effect is not good enough, the atomized air applicator 6 is turned on to continue the penetration, for further penetration printing;

[0053] A guiding plate 8 is provided on the inner wall of the box body 1 below the atomized air applicator 6. The cross-section of the guiding plate 8 is generally an obtuse triangle, and the side of the guiding plate 8 away from the atomized air applicator 6 is arc-shaped; in the present invention, by providing the guiding plate 8, first, it prevents the diffusion of atomized air downward, and at the same time guides the transmission direction of the hot air, making more effective use of the heat of the hot air and preventing the diffusion of heat;

[0054] In the present invention, by providing a hot air circulation fan 2 and a burner 3 to stably convey hot air, and at the same time providing an atomized air applicator 6, the atomized air is evenly sprayed onto the printed fabric through an air knife 51 to accelerate the penetration of the dye; at the same time, the atomized air helps to preserve the color of the print. Compared with the penetration under normal temperature and pressure, the print of this method is more vivid; at the same time, by placing the atomized air applicator 6 inside the drying box, the temperature inside the drying box is sufficient to ensure that the atomized air will not condense into water droplets on the air knife 51 due to low temperature, making the penetration of the dye more uniform; at the same time, the sufficient temperature ensures the subsequent drying of the fabric, killing two birds with one stone. It not only effectively makes the dye penetrate but also can complete the drying of the fabric, greatly shortening the production cycle and improving the production capacity and product quality.

[0055] The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A drying device for printed fabrics, characterized in that: include: A drying box, used for providing a hot drying environment for fabrics, comprising a box body (1) and a plurality of hot air circulation fans (2) and a plurality of burners (3) for providing heat, which are arranged relatively on the lower side of the side wall of the box body (1); A conveying mechanism, used for conveying cloth in the box (1), comprising a support (11) arranged in the box (1) and three groups of upper, middle and lower mesh belt conveying components (4) arranged on the support (11); the cloth is conveyed in a serpentine manner through the mesh belt conveying components (4); An air supply mechanism is provided on the upper side of each group of horizontally conveyed fabrics and is used to apply downward wind pressure to the fabric surface; An atomizing air applicator (6) is used for penetrating and soaking the fabric and is arranged on the side wall of the box (1) above the hot air circulation fan (2). The output end of the atomizing air applicator (6) is aligned with the uppermost air supply mechanism, and the atomizing air is applied to the surface of the fabric along with the air supply mechanism.

2. A drying device for printed fabrics according to claim 1, characterized in that: The mesh belt conveyor assembly (4) comprises a Teflon mesh belt (41), an active roller (42) arranged near the discharge end, a conveying motor (43) driving the active roller (42) to rotate, a driven roller (44) arranged near the feed end, a plurality of rollers (45) for supporting the Teflon mesh belt (41), and a tensioning assembly (46) for tensioning the Teflon mesh belt (41). Two groups of redirecting rollers (47) for helping the cloth to change direction are also arranged between the mesh belt conveyor assembly (4).

3. A drying device for printed fabrics according to claim 2, characterized in that: The air supply mechanism comprises a plurality of air inlet ducts (5) arranged on the upper side of each group of horizontally conveyed fabrics, and a plurality of wind knives (51) are arranged on the lower side of the air inlet ducts (5), wherein the wind knives (51) are arranged perpendicular to the fabric conveying direction.

4. A drying device for printed fabrics according to claim 3, characterized in that: The air inlet duct (5) is wide to narrow in the direction from the hot air circulation fan (2) to the burner (3), the cross section of the air inlet duct (5) is a right triangle, and the lower wall of the air inlet duct (5) is arranged horizontally.

5. A drying device for printed fabrics according to claim 4, characterized in that: A plurality of return air ducts (7) are provided on the lower side of each group of horizontally transported fabrics, and the return air ducts (7) correspond one to one to the air inlet ducts (5).

6. A drying device for printed fabrics according to claim 5, characterized in that: An exhaust device is installed on the side of the uppermost return air duct (7) via a pipeline (71).

7. A drying device for printed fabrics according to claim 6, characterized in that: The downward wind force on the upper side of the topmost fabric is greater than the downward wind force on the lower side of the fabric.

8. A drying device for printed fabrics according to claim 7, characterized in that: A guide plate (8) is provided on the inner wall of the box body (1) below the atomizing air applicator (6); the cross section of the guide plate (8) is an obtuse triangle as a whole; and the edge of the guide plate (8) away from the atomizing air applicator (6) is arranged in an arc shape.

9. A drying device for printed fabrics according to claim 8, characterized in that: A plurality of atomizing air applicators (6) are provided at the air inlet end of the air inlet duct (5) on the upper side of the fabric of the middle layer close to the discharge end, and the atomizing air applicators (6) correspond one to one to the air inlet duct (5).

10. A drying device for printed fabrics according to claim 9, characterized in that: The inner wall of the box body (1) is affixed with a heat-insulating layer (9).

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