A high-efficiency and energy-saving printing and dyeing drying machine

Abstract

This utility model discloses a high-efficiency and energy-saving printing and dyeing dryer. In the process of drying the printed and dyed fabric, the lower end of the fabric output from the unwinding device first passes sequentially through two upper rollers and two lower rollers. Then, through a hot air circulation drying mechanism, air circulates along the heating chamber, a first exhaust fan, a first air inlet pipe, a second air inlet pipe, the space above the two lower rollers, the gap between the two lower rollers, the space below the two lower rollers, a second exhaust fan, an air drying component, and the heating chamber, thus heating the fabric. Because the hot air flows along both sides of the fabric, the drying efficiency is improved. After this portion of the fabric is dried, it is wound onto a winding device. Then, through the cooperation of the unwinding and winding devices, the drying operation is gradually completed. Additionally, a water collection tray is used to collect water dripping from the fabric.

Description

Technical Field

[0001] This utility model relates to the field of printing and dyeing technology, and in particular to a high-efficiency and energy-saving printing and dyeing dryer. Background Technology

[0002] Drying the fabric after printing and dyeing is a key step to ensure the dyeing quality and fabric performance. The main reasons and functions are as follows: (1) Fixing dyes and auxiliaries: Drying evaporates water, so that the dyes and auxiliaries are positioned on the fibers to prevent migration during subsequent washing; (2) Ensuring the stability of subsequent processes: The fabric needs to be set in order to stabilize its physical properties (such as width and shrinkage rate). Insufficient drying will lead to uneven setting.

[0003] After printing and dyeing, the fabric needs to be dried using a printing and dyeing dryer. For example, Chinese patent application publication number CN120444848A, published on August 8, 2025, discloses a drying mechanism for printed and dyed fabrics. By setting up an L-shaped air duct, an exhaust fan, a U-shaped pipe, an air outlet box, and a drying box, some of the heat inside the drying box is transported into the L-shaped air duct through the air outlet, and then into the U-shaped pipe by the exhaust fan. Then, it is blown into the interior from the other end of the U-shaped pipe. The desiccant inside the drying box dries the hot air, reducing the moisture in the hot air, and then blows it back into the interior of the drying box, so that some of the heat inside the drying box is circulated. This prevents a large amount of heat from being lost from the two rectangular openings inside the drying box, which would affect the drying effect.

[0004] However, when the aforementioned drying mechanism dries the fabric, hot air is applied from above. But if the fabric is thick, the lower surface of the fabric may not be completely dry even when the upper surface is already dry, thus affecting the drying efficiency of the fabric. Utility Model Content

[0005] The purpose of this invention is to provide a high-efficiency and energy-saving printing and dyeing dryer, which improves the drying efficiency of fabrics.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a high-efficiency and energy-saving printing and dyeing dryer, comprising a machine casing, an unwinding device disposed on the upper side of one side of the machine casing, a winding device disposed on the lower side of the other side of the machine casing, a door disposed on the machine casing, and a hot air circulation drying mechanism disposed inside the machine casing. A fabric inlet is disposed on the upper side of one side of the machine casing near the unwinding device, and a fabric outlet is disposed on the lower side of the other side of the machine casing near the winding device. Two upper rollers are rotatably disposed on the upper part of the machine casing for the fabric to pass through the inlet and then through, and two lower rollers are rotatably disposed on the lower part of the machine casing for the fabric to pass through and then through the outlet. The hot air circulation drying mechanism includes a heating box disposed on one side of the machine casing, an electric heating tube disposed inside the heating box, and a device for drying the fabric. The system includes a first exhaust fan for drawing hot air from the heating chamber, a T-junction at the outlet of the first exhaust fan, a first air inlet pipe between the T-junction and one side of the casing, a second air inlet pipe between the T-junction and the other side of the casing door, a second exhaust fan for drawing air from the space below the two lower rollers, and an air drying assembly connected between the outlet of the second exhaust fan and the heating chamber. A baffle assembly covering the space between the two lower rollers and both sides of the casing is located below the casing. During operation of the second exhaust fan, air in the space above the two lower rollers flows along the gap between the two lower rollers into the space below the two lower rollers. A water collection tray is retractable at the bottom of the casing.

[0007] By adopting the above technical solution, in the process of drying the dyed fabric, the lower end of the fabric output from the unwinding device first passes through two upper rollers and two lower rollers in sequence. Then, through the hot air circulation drying mechanism, the air circulates along the heating box, the first exhaust fan, the first air inlet pipe and the second air inlet pipe, the space above the two lower rollers, the gap between the two lower rollers, the space below the two lower rollers, the second exhaust fan, the air drying components, and the heating box to heat the fabric. At this time, because the hot air flows along both sides of the fabric, the drying efficiency of the fabric can be improved. After this part of the fabric is dried, the dried fabric is wound up on the winding device. Then, through the cooperation of the unwinding device and the winding device, the drying operation of the fabric is gradually completed. In addition, the water collection tray is used to collect the water dripping from the fabric.

[0008] A further feature of this invention is that the air drying assembly includes a drying chamber, multiple mesh partitions disposed within the drying chamber, and multiple desiccant packs stacked between two adjacent mesh partitions. The two ends of the drying chamber are respectively connected to the outlet end of a second exhaust fan and a heating chamber, and the air flows through the multiple desiccant packs as it flows along the drying chamber.

[0009] By adopting the above technical solution, the air passes through multiple desiccant packs as it flows along the drying chamber, thereby drying the air, reducing the moisture in the hot air used for drying, and improving drying efficiency.

[0010] A further feature of this invention is that the baffle assembly includes two symmetrically arranged arc-shaped guide plates, a plurality of fixing bolts for fixing the upper end of the arc-shaped guide plates into the housing, and two rubber sheets respectively arranged below the arc-shaped guide plates and abutting against the highest point of the lower roller shaft.

[0011] By adopting the above technical solution, the arc-shaped guide plate is set to guide the airflow process, so that the air in the space above the two lower roller shafts can flow more efficiently along the gap between the two lower roller shafts to the space below the two lower roller shafts, thereby improving the flow efficiency during the air circulation process; at the same time, the rubber sheet can make the air flow out along the gap between the lower roller shafts as much as possible.

[0012] A further feature of this invention is that a drawer is slidably provided at the bottom of the water collection tray, guide rails are provided between the two sides of the drawer and the chassis, the water collection tray is placed inside the drawer, and lifting rings are provided on both sides of the water collection tray.

[0013] By adopting the above technical solution, the water collection tray can be moved to the outside of the chassis after the drawer is opened, and then the water collection tray can be taken out of the drawer by the lifting ring to clean the wastewater in the water collection tray.

[0014] A further feature of this invention is that: a controller is provided on the heating box, a temperature sensor is provided inside the casing, the electric heating tube is signal-connected to the controller, and the temperature sensor is signal-connected to the controller.

[0015] By adopting the above technical solution, the temperature inside the chassis is detected by a temperature sensor, and the signal is transmitted to the controller. The controller controls the heating power of the electric heating tube so that the hot air used for drying inside the chassis is within the set range. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a structural cross-sectional view of the present invention;

[0018] Figure 3 This is a structural cross-sectional view of the air drying component in this utility model.

[0019] Reference numerals: 1. Machine casing; 11. Fabric inlet; 12. Fabric outlet; 13. Upper roller shaft; 14. Lower roller shaft; 15. Temperature sensor; 2. Unwinding device; 3. Rewinding device; 4. Door; 5. Hot air circulation drying mechanism; 51. Heating chamber; 52. Electric heating tube; 53. First exhaust fan; 54. T-joint; 55. First air inlet pipe; 56. Second air inlet pipe; 57. Second exhaust fan; 58. Air drying assembly; 581. Drying chamber; 582. Mesh partition; 583. Desiccant pack; 6. Baffle assembly; 61. Arc-shaped guide plate; 62. Fixing bolt; 63. Rubber sheet; 7. Water collection tray; 71. Lifting ring; 8. Drawer; 81. Guide rail; 9. Controller. Detailed Implementation

[0020] The present invention will be further described in detail below with reference to the accompanying drawings.

[0021] Example: A high-efficiency and energy-saving printing and dyeing dryer, such as Figure 1 As shown, it includes a housing 1, an unwinding device 2 located on the upper side of one side of the housing 1, a winding device 3 located on the lower side of the other side of the housing 1, a door 4 located on the housing 1, and a hot air circulation drying mechanism 5 located inside the housing 1.

[0022] like Figure 1 and Figure 2 As shown, a fabric inlet 11 is provided on the upper side of one side of the housing 1, near the unwinding device 2, and a fabric outlet 12 is provided on the lower side of the other side of the housing 1, near the winding device 3. Two upper rollers 13 are rotatably arranged on the upper part of the housing 1, allowing the fabric to pass through the inlet 11 and then through. Two lower rollers 14 are rotatably arranged on the lower part of the housing 1, allowing the fabric to pass through and then exit from the fabric outlet 12.

[0023] like Figures 1 to 3As shown, the hot air circulating drying mechanism 5 includes a heating chamber 51 disposed on one side of the casing 1, an electric heating tube 52 disposed inside the heating chamber 51, a first exhaust fan 53 for extracting hot air from the heating chamber 51, a three-way connector 54 disposed at the outlet end of the first exhaust fan 53, a first air inlet pipe 55 disposed between the three-way connector 54 and the upper side of one side of the casing 1, a second air inlet pipe 56 disposed between the three-way connector 54 and the upper side of the other side of the casing door 4, a second exhaust fan 57 for extracting air from the space below the two lower roller shafts 14 of the casing 1, and an air drying assembly 58 connecting the outlet end of the second exhaust fan 57 and the heating chamber 51. A controller 9 is disposed on the heating chamber 51, a temperature sensor 15 is disposed inside the casing 1, the electric heating tube 52 is signal-connected to the controller 9, and the temperature sensor 15 is signal-connected to the controller 9. Meanwhile, the air drying assembly 58 includes a drying chamber 581, multiple mesh partitions 582 disposed inside the drying chamber 581, and multiple desiccant packs 583 stacked between two adjacent mesh partitions 582. The two ends of the drying chamber 581 are connected to the outlet end of the second exhaust fan 57 and the heating chamber 51, respectively. Air flows along the drying chamber 581 and passes through multiple desiccant packs 583.

[0024] like Figure 2 As shown, a baffle assembly 6 is provided below the housing 1, covering the space between the two lower roller shafts 14 and the two sides of the housing 1. During the operation of the second exhaust fan 57, the air in the space above the two lower roller shafts 14 in the housing 1 flows along the gap between the two lower roller shafts 14 to the space below the two lower roller shafts 14 in the housing 1. The baffle assembly 6 includes two symmetrically arranged arc-shaped guide plates 61, a plurality of fixing bolts 62 for fixing the upper end of the arc-shaped guide plates 61 to the housing body, and two rubber sheets 63 respectively arranged below the arc-shaped guide plates 61 and abutting the highest point of the lower roller shafts 14.

[0025] like Figure 1 and Figure 2 As shown, a water collection tray 7 is provided at the bottom of the chassis 1. Specifically, a drawer 8 is slidably provided at the bottom of the water collection tray 7, and guide rails 81 are provided between the two sides of the drawer 8 and the chassis 1. The water collection tray 7 is placed inside the drawer 8, and lifting rings 71 are provided on both sides of the water collection tray 7.

[0026] Implementation effect: In the process of drying the dyed fabric, the lower end of the fabric output from the unwinding device 2 passes through two upper rollers 13 and two lower rollers 14 in sequence, and then passes through the hot air circulation drying mechanism 5. The air circulates along the heating box 51, the first exhaust fan 53, the first air inlet pipe 55 and the second air inlet pipe 56, the space above the two lower rollers 14 in the machine box 1, the gap between the two lower rollers 14, the space below the two lower rollers 14 in the machine box 1, the second exhaust fan 57, the air drying component 58, and the heating box 51 to heat the fabric. At this time, the hot air flows along both sides of the fabric, thereby improving the drying efficiency of the fabric. After this part of the fabric is dried, the dried fabric is wound up on the winding device 3. Then, through the cooperation of the unwinding device 2 and the winding device 3, the drying operation of the fabric is gradually completed. In addition, the water collection tray 7 is used to collect the water dripping from the fabric.

[0027] Air flows through multiple desiccant packs 583 along the drying chamber 581 to dry the air, reducing moisture in the hot air used for drying and improving drying efficiency. The arc-shaped guide plate 61 guides the airflow, allowing air in the space above the two lower rollers 14 to flow more efficiently along the gap between them to the space below, improving air circulation efficiency. Simultaneously, the rubber sheet 63 facilitates airflow out through the gap between the rollers 14. After the drawer 8 is opened, the water collection tray 7 moves to the outside of the chamber 1, allowing it to be removed from the drawer 8 via the lifting ring 71 for wastewater removal. The temperature sensor 15 detects the temperature inside the chamber 1 and transmits this information to the controller 9. The controller 9 controls the heating power of the electric heating element 52 to ensure the hot air used for drying inside the chamber 1 remains within a set range.

[0028] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A high-efficiency and energy-saving printing and dyeing dryer, comprising a casing (1), an unwinding device (2) disposed above one side of the casing (1), a winding device (3) disposed below the other side of the casing (1), a door (4) disposed on the casing (1), and a hot air circulation drying mechanism (5) disposed inside the casing (1), characterized in that: The machine housing (1) has a fabric inlet (11) located above one side near the unwinding device (2), and a fabric outlet (12) located below the other side near the winding device (3). Inside the machine housing (1), there are two upper rollers (13) rotatably arranged above for the fabric to pass through the inlet (11) and then through. Inside the machine housing (1), there are two lower rollers (14) rotatably arranged below for the fabric to pass through and then through the fabric outlet (12). The hot air circulation drying mechanism (5) includes a heating box (51) disposed on one side of the casing (1), an electric heating tube (52) disposed in the heating box (51), a first exhaust fan (53) for extracting hot air from the heating box (51), a three-way connector (54) disposed at the outlet end of the first exhaust fan (53), a first air inlet pipe (55) disposed between the three-way connector (54) and the upper side of one side of the casing (1), a second air inlet pipe (56) disposed between the three-way connector (54) and the upper side of the other side of the door (4), a second exhaust fan (57) for extracting air from the space below the two lower rollers (14) of the casing (1), and an air drying assembly (58) connected between the outlet end of the second exhaust fan (57) and the heating box (51). Below the casing (1) is a baffle assembly (6) that covers the space between the two lower roller shafts (14) and the two sides of the casing (1). During the operation of the second exhaust fan (57), the air in the space above the two lower roller shafts (14) of the casing (1) flows along the gap between the two lower roller shafts (14) to the space below the two lower roller shafts (14) of the casing (1). The bottom of the chassis (1) is equipped with a water collection tray (7) that can be pulled out.

2. The high efficiency energy saving drying machine for printing and dyeing according to claim 1, characterized in that: The air drying assembly (58) includes a drying chamber (581), a plurality of mesh partitions (582) disposed in the drying chamber (581), and a plurality of desiccant packs (583) stacked between two adjacent mesh partitions (582). The two ends of the drying chamber (581) are respectively connected to the outlet end of the second exhaust fan (57) and the heating chamber (51). Air flows through the plurality of desiccant packs (583) along the drying chamber (581).

3. The high efficiency energy saving drying machine for printing and dyeing as claimed in claim 1 wherein: The baffle assembly (6) includes two symmetrically arranged arc-shaped guide plates (61), a plurality of fixing bolts (62) for fixing the upper end of the arc-shaped guide plates (61) into the housing, and two rubber sheets (63) respectively arranged below the arc-shaped guide plates (61) and abutting the highest point of the lower roller shaft (14).

4. The energy efficient drying machine for printing and dyeing according to claim 1, characterized in that: The bottom of the water collection tray (7) is slidably provided with a drawer (8), and guide rails (81) are provided between the two sides of the drawer (8) and the chassis (1). The water collection tray (7) is placed inside the drawer (8), and lifting rings (71) are provided on both sides of the water collection tray (7).

5. The energy efficient drying machine for printing and dyeing as claimed in claim 1 wherein: The heating box (51) is equipped with a controller (9), the housing (1) is equipped with a temperature sensor (15), the electric heating tube (52) is connected to the controller (9) by signal, and the temperature sensor (15) is connected to the controller (9) by signal.

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