Drying device for knitted fabric

Abstract

The drying device comprises a drying box, a box door is arranged on the front side of the drying box, a feeding port and a discharging port are formed in the left side of the drying box, a hot air cavity is formed in the rear side of the drying box, the hot air cavity is connected with an air inlet pipe, an induced draft fan and a heating device are connected to the air inlet pipe, and a supporting frame is arranged in the drying box and close to the box door. A plurality of rotating guide rollers are arranged between the supporting frame and the inner wall of the rear side of the drying box and are distributed in a circle in the vertical direction, air supply holes are formed in the guide rollers, a plurality of first air outlet holes communicating with the air supply holes are formed in the outer walls of the guide rollers, and the air supply holes communicate with the hot air cavity; a feeding roller and a discharging roller which are located at the feeding port and the discharging port respectively are arranged on the inner wall of the left side of the drying box, and by means of the fabric drying device, the fabric drying efficiency can be improved, and the drying effect is even.

Description

Technical Field

[0001] The utility model relates to the technical field of textiles, in particular to a drying device for knitted fabrics. Background Art

[0002] Usually after the fabric is woven, it needs to be pre-shrunk at high temperature and high humidity and washed. After the pre-shrunk and washed, the fabric contains a large amount of moisture, so the fabric needs to be dried. Since the fabric is usually placed in rolls, some drying devices in the prior art neatly discharge the rolled fabrics into a drying chamber for high-temperature drying. However, in this way, since the rolled fabrics have a certain thickness, the heat inside and outside the fabrics is uneven, which leads to a slow drying speed of the internal fabrics. Utility Model Content

[0003] In order to solve the above-mentioned deficiencies in the prior art, the utility model provides a drying device for knitted fabrics.

[0004] In order to achieve the above technical effects, the utility model adopts the following scheme:

[0005] A drying device for knitted fabrics, comprising a drying box, wherein a box door is hingedly provided on the front side of the drying box, a feed port and a discharge port are provided on the left side of the drying box, the feed port and the discharge port are distributed in the vertical direction, a hot air chamber is provided on the rear side of the drying box, the hot air chamber is connected with an air inlet pipe, and the air inlet pipe is connected with an induced draft fan and a heating device, a support frame is provided in the drying box near the box door, a plurality of rotating guide rollers are provided between the support frame and the inner wall of the rear side of the drying box, the plurality of guide rollers are distributed in a circle in the vertical direction, the two ends of the guide rollers are rotatably mounted on the support frame and the inner wall of the drying box through a rotating shaft, the guide rollers are provided with air supply holes arranged parallel to the length direction of the guide rollers, the outer wall of the guide rollers is provided with a plurality of first air outlet holes connected with the air supply holes, the rotating shaft on the guide roller connected with the inner wall of the drying box passes through the side wall of the drying box, and the rotating shaft is provided with a first ventilation hole connected with the air supply hole and the hot air chamber, and the left inner wall of the drying box is provided with a feed roller and a discharge roller respectively located at the feed port and the discharge port.

[0006] A preferred technical solution is that a hot air duct is further provided between the support frame and the rear inner wall of the drying box, the end of the hot air duct connected to the support frame is closed, the end of the hot air duct connected to the inner wall of the drying box is connected to a second ventilation hole arranged through the side wall of the drying box, the other end of the second ventilation hole is connected to the hot air cavity, the hot air duct is located at the center of an area surrounded by a plurality of guide rollers, and the surface of the hot air duct has a plurality of second air outlet holes connected to the hot air duct.

[0007] According to a preferred technical solution, the heating device comprises a heating box, one end of which is connected to the hot air chamber, the other end of which is connected to the air inlet pipe, and a PTC heater is provided in the heating box.

[0008] A preferred technical solution is that the upper end of the drying box is connected to an exhaust pipe, the exhaust pipe is connected to a condensing device, the exhaust pipe is vertically arranged, the condensing device includes an inclined condensing pipe, the condensing pipe is coiled into a spiral shape, the upper end of the condensing pipe is connected to the upper end of the exhaust pipe, the outer side of the condensing pipe is covered with a cooling pipe, the lower end of the cooling pipe is provided with a water inlet, and the upper end of the cooling pipe is provided with a water outlet.

[0009] According to a preferred technical solution, a heat insulating layer is provided on the side of the drying box, and the heat insulating layer is a polyurethane foam layer.

[0010] According to a preferred technical solution, a high temperature resistant rubber layer is provided on the surface of the guide roller, and a plurality of third air outlet holes are provided on the high temperature resistant rubber layer, which are connected one by one with the first air outlet holes.

[0011] Compared with the prior art, the beneficial effects are:

[0012] The utility model has a simple structure and is easy to use. The utility model is installed on a production line, and the fabrics are spread out and sent into a drying box from a material inlet, and then sent out from a material outlet after being wound around a plurality of guide rollers. The air flow heated by the heating device enters the air supply hole through the hot air cavity, and then is discharged from the first air outlet, so that the fabrics attached to the guide rollers are dried with hot air. Through the utility model, the drying efficiency of the fabrics can be accelerated, and the drying effect is uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a front view cross-sectional schematic diagram of the utility model;

[0014] Figure 2 It is a side cross-sectional schematic diagram of the utility model;

[0015] Figure 3 It is a schematic cross-sectional view of the guide roller in the utility model;

[0016] Figure 4 It is a schematic diagram of the structure of the condensing device in the utility model.

[0017] Figure numerals: 1, drying box; 2, feeding port; 3, discharging port; 4, feeding roller; 5, discharging roller; 6, supporting frame; 7, guide roller; 8, hot air duct; 9, exhaust pipe; 10, box door; 11, first air outlet; 12, second air outlet; 13, hot air chamber; 14, heating box; 15, air inlet duct; 16, induced draft fan; 17, PTC heater; 18, rotating shaft; 19, second ventilation hole; 20, air supply hole; 21, first ventilation hole; 22, high temperature resistant rubber layer; 23, third air outlet; 24, condenser; 25, cooling pipe; 26, water inlet; 27, water outlet. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0019] A drying device for knitted fabrics, comprising a drying box 1, wherein a door 10 is hingedly provided at the front side of the drying box 1, and the door 10 is hingedly connected to the drying box 1 in a conventional manner, and the door 10 can be opened from the front side of the drying box 1 to facilitate maintenance in the drying box 1 and guide the fabric at the beginning of drying, wherein a feed port and a discharge port 3 are provided at the left side of the drying box 1, wherein the feed port and the discharge port 3 are distributed in the vertical direction, and the feed port is provided above the discharge port 3, and a hot air chamber 13 is provided at the rear side of the drying box 1, wherein the hot air chamber 13 is connected to an air inlet pipe 15, wherein an induced draft fan 16 and a heating device are connected to the air inlet pipe 15, and air from the induced draft fan 16 is sent into the heating device for heating and then enters the hot air chamber 13;

[0020] A support frame 6 is provided near the door 10 in the drying box 1, and a plurality of rotating guide rollers 7 are provided between the support frame 6 and the rear inner wall of the drying box 1. The plurality of guide rollers 7 are vertically arranged in a circle, and the two ends of the guide rollers 7 are rotatably mounted on the support frame 6 and the inner wall of the drying box 1 through a rotating shaft 18, respectively. The guide roller 7 has an air supply hole 20 arranged parallel to the length direction of the guide roller 7, and the outer wall of the guide roller 7 has a plurality of first air outlet holes 11 connected with the air supply hole 20, and the plurality of first air outlet holes 11 surround the guide roller 7 to and evenly distributed along the length direction of the guide roller 7; the rotating shaft 18 on the guide roller 7 connected to the inner wall of the drying box 1 passes through the side wall of the drying box 1, and the rotating shaft 18 has a first ventilation hole 21 connecting the air supply hole 20 and the hot air chamber 13; the left inner wall of the drying box 1 is provided with a feeding roller 4 and a discharging roller 5 located at the feeding port and the discharging port 3 respectively; the hot air in the hot air chamber 13 enters the air supply hole 20 from the first ventilation hole 21 on the rotating shaft 18, and then is blown out from the first air outlet 11 to dry the fabric passing through the surface of the guide roller 7.

[0021] The utility model is installed on the production line, the fabric is spread out and sent into the drying box 1 from the material inlet 2, and then sent out from the material outlet 3 after passing through a circle of several guide rollers 7. The air flow heated by the heating device passes through the hot air cavity 13 into the air supply hole 20, and then is discharged from the first air outlet, so that the fabric attached to the guide roller 7 is dried by hot air. Through the utility model, the drying efficiency of the fabric can be accelerated and the drying effect is uniform.

[0022] A preferred technical solution is that a hot air duct 8 is further provided between the support frame 6 and the rear inner wall of the drying box 1, the end of the hot air duct 8 connected to the support frame 6 is closed, the end of the hot air duct 8 connected to the inner wall of the drying box 1 is connected to a second ventilation hole 19 arranged through the side wall of the drying box 1, the other end of the second ventilation hole 19 is connected to the hot air cavity 13, the hot air duct 8 is located at the center of the area surrounded by a plurality of guide rollers 7, the surface of the hot air duct 8 has a plurality of second air outlet holes 12 connected to the hot air duct 8, and the plurality of air outlet holes surround the hot air duct 8 and are evenly distributed along the length direction of the hot air duct 8.

[0023] The hot air in the hot air chamber 13 enters the hot air pipe 8 from the second ventilation hole 19, and then is blown out from the second air outlet 12 to dry the fabric portion suspended between the two guide rollers 7, thereby accelerating the drying efficiency.

[0024] The preferred technical solution is that the heating device includes a heating box 14, one end of which is connected to the hot air chamber 13, and the other end of the heating box 14 is connected to the air inlet pipe 15. A PTC heater 17 is provided in the heating box 14, and the PTC heater 17 heats up quickly and has low energy consumption.

[0025] A preferred technical solution is that the upper end of the drying box 1 is connected to an exhaust pipe 9, and the exhaust pipe 9 is connected to a condensing device. The exhaust pipe 9 is vertically arranged, and the condensing device includes an inclined condensing pipe 24, and the condensing pipe 24 is coiled into a spiral shape. The upper end of the condensing pipe 24 is connected to the upper end of the exhaust pipe 9, and the outer side of the condensing pipe 24 is covered with a cooling pipe 25. The lower end of the cooling pipe 25 is provided with a water inlet 26, and the upper end of the cooling pipe 25 is provided with a water outlet 27.

[0026] The moisture brought out by the drying fabric is discharged from the exhaust pipe 9, condensed by the condensing device, and recovered. Cold water is injected into the cooling pipe 25 from the water inlet 26, and the steam in the condensing pipe 24 is condensed by the cold water.

[0027] According to a preferred technical solution, a heat insulating layer is provided on the side of the drying box 1, and the heat insulating layer is a polyurethane foam layer.

[0028] A preferred technical solution is that a high temperature resistant rubber layer 22 is provided on the surface of the guide roller 7, and a plurality of third air outlet holes 23 are provided on the high temperature resistant rubber layer 22 which are connected one by one with the first air outlet holes 11. The high temperature resistant rubber layer 22 increases the friction between the guide roller 7 and the fabric, so that the guide roller 7 can be smoothly driven to rotate when the fabric moves.

[0029] In the description of the present utility model, it should be understood that the terms "upper", "lower", "top", "bottom", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is conventionally placed when in use, or are the orientations or positional relationships conventionally understood by those skilled in the art. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present utility model.

[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0031] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

Claims

1. A drying device for knitted fabrics, characterized in that: The invention comprises a drying box (1), wherein a box door (10) is hingedly provided on the front side of the drying box (1), a material inlet and a material outlet (3) are provided on the left side of the drying box (1), a hot air chamber (13) is provided on the rear side of the drying box (1), the hot air chamber (13) is connected to an air inlet pipe (15), the air inlet pipe (15) is connected to an induced draft fan (16) and a heating device, a support frame (6) is provided in the drying box (1) near the box door (10), and the support frame (6) is connected to the drying box (1). ) are provided between the rear inner walls of the drying box (1), the plurality of guide rollers (7) are arranged in a circle in the vertical direction, the guide rollers (7) have air supply holes (20) in them, the outer walls of the guide rollers (7) have a plurality of first air outlet holes (11) connected to the air supply holes (20), the air supply holes (20) are connected to the hot air chamber (13), and the left inner wall of the drying box (1) is provided with a feed roller (4) and a discharge roller (5) respectively located at the feed port and the discharge port (3).

2. A drying device for knitted fabrics as claimed in claim 1, characterized in that: A hot air pipe (8) is also provided between the support frame (6) and the rear inner wall of the drying box (1); the end of the hot air pipe (8) connected to the support frame (6) is closed; the end of the hot air pipe (8) connected to the inner wall of the drying box (1) is connected to a second ventilation hole (19) provided through the side wall of the drying box (1); the other end of the second ventilation hole (19) is connected to the hot air cavity (13); the hot air pipe (8) is located at the center of an area surrounded by a plurality of guide rollers (7); and the surface of the hot air pipe (8) has a plurality of second air outlet holes (12) connected to the inside of the hot air pipe (8).

3. A drying device for knitted fabrics as claimed in claim 1, characterized in that: The heating device comprises a heating box (14), one end of the heating box (14) is connected to the hot air chamber (13), the other end of the heating box (14) is connected to the air inlet pipe (15), and a PTC heater (17) is provided in the heating box (14).

4. A drying device for knitted fabrics as claimed in claim 1, characterized in that: The upper end of the drying box (1) is connected to an exhaust pipe (9), and the exhaust pipe (9) is connected to a condensing device. The exhaust pipe (9) is vertically arranged. The condensing device includes an inclined condensing pipe (24), and the condensing pipe (24) is coiled into a spiral shape. The upper end of the condensing pipe (24) is connected to the upper end of the exhaust pipe (9). The outer side of the condensing pipe (24) is covered with a cooling pipe (25). The lower end of the cooling pipe (25) is provided with a water inlet (26), and the upper end of the cooling pipe (25) is provided with a water outlet (27).

5. A drying device for knitted fabrics as claimed in claim 1, characterized in that: A heat insulation layer is provided on the side of the drying box (1), and the heat insulation layer is a polyurethane foam layer.

6. A drying device for knitted fabrics as claimed in claim 1, characterized in that: The surface of the guide roller (7) is provided with a high temperature resistant rubber layer (22), and the high temperature resistant rubber layer (22) is provided with a plurality of third air outlet holes (23) which are connected one by one with the first air outlet holes (11).

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