Fabric drying device with disinfection function

Abstract

The present application relates to the technical field of fabric drying and disinfecting equipment, and particularly relates to a fabric drying device with a disinfecting function, which comprises a disinfecting and drying box, a rotary driving mechanism, a rotary drum, a plurality of hanging rods symmetrically arranged on the outer circumferential wall of the rotary drum, a plurality of disinfecting units arranged in the disinfecting and drying box, an air inlet pipe and an air outlet pipe arranged on the disinfecting and drying box; the fabric on the hanging rods is slowly rotated by the rotary drum, so that the fabric is uniformly heated and fully disinfected under the irradiation of hot air and ultraviolet light, and dead angles caused by fabric accumulation are avoided. In addition, the upper air inlet pipe, the lower air inlet pipe and the corresponding air outlet pipe are arranged, and the upper and lower air supply is realized alternately through the electromagnetic valve and the controller, so that the hot air can penetrate the fabric from different directions, and the drying efficiency is improved. The hollow pipe is adopted for the hanging rod, and pulse jet holes are arranged, so that pulse air flow can be injected to the inner side of the fabric while the fabric is rotating, and the fabric is unfolded and the water evaporation is accelerated.

Description

Technical Field

[0001] This invention relates to the field of fabric drying and disinfection equipment, and in particular to a fabric drying device with disinfection function. Background Technology

[0002] Fabrics such as bed sheets, curtains, and work clothes are prone to harboring bacteria, fungi, and other microorganisms during use, requiring regular drying and disinfection. Existing fabric drying equipment is mostly drum-type or cabinet-type, which has the following shortcomings: First, fabrics tend to tangle and pile up during the drying process, preventing hot air and ultraviolet rays from evenly reaching the fabric surface, resulting in unsatisfactory disinfection; second, drying efficiency is low and energy consumption is high; third, there is a lack of multi-angle, multi-directional disinfection unit arrangements, creating disinfection blind spots; and fourth, the air intake and exhaust methods are singular, making it impossible to dynamically adjust airflow organization according to the drying stage.

[0003] Therefore, developing a highly efficient disinfection and drying device that can fully unfold fabrics, disinfect in multiple directions, and allow for adjustable airflow has significant practical value. Summary of the Invention

[0004] The purpose of this invention is to provide a fabric drying device with disinfection function, which solves the problems of fabric accumulation, incomplete disinfection, and monotonous airflow organization during conventional fabric drying and disinfection.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The present invention provides a fabric drying device with disinfection function, including a disinfection drying box, a rotary drive mechanism disposed at the bottom center of the disinfection drying box, a rotary cylinder disposed on the rotary drive mechanism, a plurality of hanging rods symmetrically disposed on the outer peripheral wall of the rotary cylinder, a plurality of disinfection units disposed in the disinfection drying box, and an air inlet pipe and an air outlet pipe disposed on the disinfection drying box. The disinfection and drying box has a cylindrical structure, and its outer wall is provided with at least one sealed door for easy loading and unloading of fabrics; A blower capable of heating air is connected to the air inlet duct; a temperature sensor is installed inside the disinfection and drying chamber.

[0006] In this embodiment, a first sealing door and a second sealing door are further provided on the disinfection and drying box.

[0007] Furthermore in this embodiment, multiple upper air inlet pipes and multiple upper air outlet pipes are provided on the top of the disinfection and drying box; Multiple lower air inlet pipes and multiple lower air outlet pipes are provided at the bottom of the disinfection and drying oven; Solenoid valves are installed on the upper air inlet pipe, the upper air outlet pipe, the lower air inlet pipe, and the lower air outlet pipe. Each solenoid valve and temperature sensor is electrically connected to a controller.

[0008] Furthermore in this embodiment, both the upper air inlet pipe and the lower air inlet pipe are connected to a blower, and a heater is installed on the blower's air supply pipe.

[0009] Furthermore in this embodiment, the rotary drive mechanism includes a rotary bearing at the bottom of the disinfection and drying chamber and a rotary support for supporting the rotary bearing; The slewing bearing includes an outer support ring fixed on the slewing support, an inner support ring rotatably disposed within the outer support ring, and a servo motor disposed on the slewing support for driving the inner support ring to rotate. The inner circumferential wall of the support inner ring is provided with internal teeth, and a gear that meshes with the internal teeth is provided on the power output shaft of the servo motor.

[0010] Furthermore in this embodiment, the bottom of the rotating cylinder is vertically fixed to the inner ring of the support.

[0011] Furthermore in this embodiment, the hanging rod is a hollow tube with multiple pulse jet holes on its outer wall, and a pulse air pump is installed inside the rotating cylinder; the pulse air pump is connected to each of the hanging rods through an air guide pipe.

[0012] Furthermore, in this embodiment, a diagonal brace is provided on the side wall of the rotating cylinder to support the hanging rod.

[0013] Furthermore, in this embodiment, a first vertical disinfection unit that is misaligned with the hanging rod is provided on the outer wall of the rotating cylinder, and a plurality of second vertical disinfection units are provided on the inner wall of the disinfection and drying box.

[0014] Furthermore, in this embodiment, multiple top disinfection units and multiple bottom disinfection units are respectively provided at the inner top and inner bottom of the disinfection and drying box; wherein the first vertical disinfection unit, the second vertical disinfection unit, the top disinfection unit and the bottom disinfection unit are all ultraviolet lamps or microwave generators.

[0015] Compared with the prior art, the beneficial technical effects of the present invention are as follows: This application utilizes a rotating drum to slowly rotate the fabric on the hanging rod, ensuring even heating and comprehensive disinfection under hot air and ultraviolet radiation, preventing fabric accumulation and dead zones. Furthermore, it incorporates upper and lower air inlets and corresponding exhaust pipes, with solenoid valves and controllers enabling alternating airflow from both directions, allowing hot air to penetrate the fabric and improving drying efficiency. The hanging rods are hollow tubes with pulse jet nozzles, which spray pulsed airflow into the fabric during rotation, aiding in fabric unfolding and accelerating moisture evaporation. Disinfection units are arranged in multiple directions on the outer wall of the rotating drum, the inner wall of the chamber, the top, and the bottom, achieving full-space, three-dimensional disinfection without any blind spots. Driven by a slewing bearing and a servo motor, the structure is stable and offers high control precision, making it suitable for batch processing of large fabrics such as bed sheets and work clothes. Attached Figure Description

[0016] The invention will be further described below with reference to the accompanying drawings. Figure 1 This is a schematic diagram of the internal structure of the fabric drying device with disinfection function of the present invention; Figure 2 This is an external schematic diagram of the fabric drying device with disinfection function of the present invention; Figure 3 This is a schematic diagram of the rotating suspension mechanism inside the fabric drying device with disinfection function of the present invention; Figure 4 for Figure 1 Top view of section AA; Figure 5 for Figure 1 A bottom view of the middle BB section; Figure 6 for Figure 1 A magnified view of a portion of the image.

[0017] Explanation of reference numerals in the attached drawings: 1. Disinfection and drying oven; 11. First sealing door; 12. Second sealing door; 13. Upper air inlet duct; 14. Upper exhaust duct; 15. Lower air inlet duct; 16. Lower exhaust duct; 2. Rotary support; 3. Rotary bearing; 31. Servo motor; 32. Outer ring of the support; 33. Inner ring of the support; 4. Rotating cylinder; 5. Hanging rod; 51. Pulse jet nozzle; 52. Diagonal brace; 6. Pulse air pump; 61. Air guide pipe; 7. Top disinfection unit; 8. First vertical disinfection unit; 9. Second vertical disinfection unit; 10. Bottom disinfection unit. Detailed Implementation

[0018] Example 1 refer to Figure 1This embodiment discloses a fabric drying device with disinfection function, including a disinfection drying box 1, a rotary drive mechanism installed at the bottom center of the disinfection drying box 1, a rotary cylinder 4 installed on the rotary drive mechanism, multiple hanging rods 5 symmetrically installed on the outer peripheral wall of the rotary cylinder 4, multiple disinfection units installed inside the disinfection drying box 1, and an air inlet pipe and an air outlet pipe installed on the disinfection drying box 1; the disinfection drying box 1 is a cylindrical structure made of stainless steel, and its outer wall is equipped with a sealed door for easy loading and unloading of fabrics; a blower for heating air is connected to the air inlet pipe; and a temperature sensor is installed inside the disinfection drying box 1.

[0019] refer to Figure 1 and Figure 2 The disinfection and drying oven 1 is provided with a first sealing door 11 and a second sealing door 12; the two sealing doors are arranged opposite each other, which makes it convenient to load and unload large-sized fabrics such as bed sheets and curtains from both sides.

[0020] refer to Figure 1 Multiple upper air inlet pipes 13 and multiple upper air outlet pipes 14 are installed on the top of the disinfection and drying chamber 1; multiple lower air inlet pipes 15 and multiple lower air outlet pipes 16 are installed on the bottom of the disinfection and drying chamber 1; each of the upper air inlet pipes 13, the upper air outlet pipes 14, the lower air inlet pipes 15, and the lower air outlet pipes 16 is equipped with a solenoid valve, and each solenoid valve and temperature sensor is electrically connected to a controller (e.g., a PLC controller). Both the upper air inlet pipes 13 and the lower air inlet pipes 15 are connected to a blower, and an electric heater is installed on the air supply duct of the blower to heat the air to a set temperature (e.g., 70-80℃). A temperature sensor is installed in the middle of the inner wall of the disinfection and drying chamber 1 to provide real-time feedback of the chamber temperature to the controller.

[0021] refer to Figure 1 and Figure 6 The rotary drive mechanism includes a slewing bearing 3 at the bottom of the sterilization and drying chamber 1 and a slewing support 2 for supporting the slewing bearing 3. The slewing bearing 3 includes a support outer ring 32 fixed on the slewing support 2, a support inner ring 33 rotatably disposed within the support outer ring 32, and a servo motor 31 disposed on the slewing support 2 for driving the support inner ring 33 to rotate. The inner circumferential wall of the support inner ring 33 is provided with internal teeth, and a gear that meshes with the internal teeth is disposed on the power output shaft of the servo motor 31. The bottom of the rotating cylinder 4 is fixed to the upper end face of the support inner ring 33 by bolts. When the servo motor 31 drives the support inner ring 33 to rotate, the rotating cylinder 4 and the hanging rod 5 rotate together.

[0022] refer to Figure 1 and Figure 3The hanging rod 5 is a hollow tube with multiple pulse jet holes 51 on its outer wall. A pulse air pump 6 is installed inside the rotating cylinder 4. The pulse air pump 6 is connected to each of the hanging rods 5 through air guide pipes 61. The air guide pipes 61 can pass through the sealed joints on the side wall of the rotating cylinder 4. The pulse air pump 6 is a miniature electromagnetic pulse air pump, which can generate intermittent high-pressure airflow, which is ejected from the pulse jet holes 51 and blown directly onto the inner side of the suspended fabric, assisting the fabric to unfold and accelerating moisture evaporation. In addition, to prevent the hanging rod 5 from deforming due to excessive cantilever length, a diagonal brace 52 is welded to the side wall of the rotating cylinder 4. The outer end of the diagonal brace 52 is connected to the middle or outer end of the hanging rod 5. refer to Figure 4 and Figure 5 A first vertical disinfection unit 8, offset from the hanging rod 5, is installed on the outer wall of the rotating cylinder 4, and multiple second vertical disinfection units 9 are installed on the inner wall of the disinfection and drying chamber 1. Multiple top disinfection units 7 and multiple bottom disinfection units 10 are installed at the inner top and inner bottom of the disinfection and drying chamber 1, respectively; wherein the first vertical disinfection unit 8, the second vertical disinfection unit 9, the top disinfection unit 7, and the bottom disinfection unit 10 are all ultraviolet lamps or microwave generators.

[0023] Specifically, in this embodiment, all disinfection units use ultraviolet lamps.

[0024] refer to Figure 3 Multiple first vertical disinfection units 8 are fixed to the outer wall of the rotating drum 4 via brackets. These first vertical disinfection units 8 are staggered with the hanging rods 5 in the circumferential direction (i.e., an ultraviolet lamp is placed between every two hanging rods). Multiple second vertical disinfection units 9 are fixed to the inner wall of the disinfection and drying chamber 1. In addition, multiple top disinfection units 7 are installed at the inner top of the disinfection and drying chamber 1, and multiple bottom disinfection units 10 are installed at the inner bottom. All disinfection units are directed towards the center of the rotating drum 4 for irradiation. In this way, when the fabric is suspended on the hanging rods 5 and rotates slowly with the rotating drum 4, the front, back, sides, and top and bottom of the fabric can be irradiated with ultraviolet light, achieving disinfection without dead angles.

[0025] The controller uses a programmable logic controller (PLC) or a microcontroller and is electrically connected to the temperature sensor, solenoid valves, servo motor 31, pulse air pump 6, blower, heater, and each disinfection unit. The controller has a preset drying and disinfection program.

[0026] The working process of this embodiment is as follows: First, load the materials. Specifically, open the first sealing door 11 or the second sealing door 12, and hang the fabrics to be processed, such as bed sheets, curtains, and work clothes, on the hanging rod 5 in sequence, ensuring that the fabrics hang naturally and do not overlap each other; then close the two sealing doors.

[0027] Next, the program is started. The operator selects the drying and sterilization mode (such as standard mode, fast mode, or powerful sterilization mode) via the control panel and presses the start button. The controller activates the servo motor 31, driving the inner support ring 33 and the rotating drum 4 to rotate at a low speed (e.g., 2-6 revolutions per minute), causing the fabric on the hanging rod 5 to rotate slowly. Simultaneously, the controller activates all sterilization units (first vertical sterilization unit 8, second vertical sterilization unit 9, top sterilization unit 7, and bottom sterilization unit 10), and ultraviolet light begins to irradiate the fabric surface. The rotational motion ensures that each surface of the fabric faces the ultraviolet light source in turn, eliminating blind spots in the irradiation.

[0028] At the same time, hot air drying is also carried out. The controller starts the blower and heater to heat the air according to the set temperature (e.g., 75°C). Meanwhile, the controller controls the opening and closing of each solenoid valve according to the preset airflow organization strategy.

[0029] In the initial stage (0-10 minutes): the solenoid valves of the upper air inlet pipe 13 and the lower air inlet pipe 15 are opened, and the solenoid valves of the upper exhaust pipe 14 and the lower exhaust pipe 16 are closed. Hot air enters the chamber from the top and bottom at the same time and is discharged intermittently from the exhaust port on the side wall or through the exhaust pipe, so that the chamber temperature rises rapidly.

[0030] Mid-term (10-40 minutes): Alternating air supply mode is used. The controller first opens the solenoid valves of the upper air inlet duct 13 and the upper air outlet duct 16 (or the lower air outlet duct 16), allowing hot air to penetrate the fabric from top to bottom; after running for 5 minutes, it switches to the lower air inlet duct 15 and the lower air outlet duct 14, allowing hot air to penetrate the fabric from bottom to top. This cycle is repeated to avoid heating one side of the fabric and causing the other side to become damp.

[0031] Later stage (40-50 minutes): Only open the lower air inlet pipe 15 and the upper air outlet pipe 14 to form hot air from bottom to top, using the principle of hot air rising naturally to remove residual moisture inside the fabric.

[0032] During the drying process, the temperature sensor monitors the temperature inside the chamber in real time, and the controller adjusts the heater power according to the temperature feedback to keep the temperature within the set range (fluctuation not exceeding ±3℃).

[0033] During the later stages of drying (e.g., starting at the 20th minute), the controller activates the pulse air pump 6. The pulse air pump 6 delivers a pulsed airflow with a frequency of 0.5-2Hz and a pressure of 10-30kPa through the air guide pipe 61 to each hanging rod 5. The airflow is then ejected from the pulse jet hole 51, directly impacting the inner side of the fabric. This causes the fabric to shake and unfold slightly, preventing it from sticking to the hanging rod due to moisture, while simultaneously accelerating the evaporation of moisture from the inner side.

[0034] After the drying and sterilization process is complete and the set time (e.g., 60 minutes) is reached, the controller shuts off the heater, blower, pulse air pump 6, and sterilization unit, and the servo motor 31 stops rotating. All exhaust duct solenoid valves are opened to expel the hot and humid air from the chamber. Once the temperature inside the chamber drops to a safe level (e.g., below 50°C), the controller issues a warning sound, and the operator opens the sealed door to remove the dried and thoroughly sterilized fabric.

[0035] Example 2 This embodiment is basically the same as Embodiment 1, except that a microwave generator is used instead of an ultraviolet lamp in the disinfection unit. The microwave generator is installed on the inner wall of the chamber and the outer wall of the rotating cylinder. Microwaves can penetrate the fabric and kill microorganisms using both thermal and non-thermal effects, making it particularly suitable for treating thick fabrics such as towels and quilts. The microwave generator operates at a frequency of 2450MHz±50MHz and its power is adjustable. Because microwaves are harmful to the human body, the sealed door needs to be equipped with an interlock switch that automatically cuts off the microwave output when the door is opened.

[0036] The above embodiments are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A fabric drying device with disinfection function, characterized in that: It includes a disinfection and drying box (1), a rotary drive mechanism located at the bottom center of the disinfection and drying box (1), a rotary cylinder (4) located on the rotary drive mechanism, multiple hanging rods (5) symmetrically arranged on the outer peripheral wall of the rotary cylinder (4), multiple disinfection units located inside the disinfection and drying box (1), and an air inlet pipe and an air outlet pipe located on the disinfection and drying box (1). The disinfection and drying box (1) has a cylindrical structure, and its outer wall is provided with at least one sealed door for easy handling of fabrics; A blower capable of heating air is connected to the air inlet pipe; a temperature sensor is installed inside the disinfection and drying box (1).

2. The fabric drying device with disinfection function according to claim 1, characterized in that: The disinfection and drying oven (1) is equipped with a first sealing door (11) and a second sealing door (12).

3. The fabric drying device with disinfection function according to claim 1, characterized in that: Multiple upper air inlet pipes (13) and multiple upper air outlet pipes (14) are provided on the top of the disinfection and drying box (1). Multiple lower air inlet pipes (15) and multiple lower air outlet pipes (16) are provided at the bottom of the disinfection and drying box (1). Solenoid valves are installed on the upper air inlet pipe (13), the upper air outlet pipe (14), the lower air inlet pipe (15), and the lower air outlet pipe (16), and each solenoid valve and temperature sensor is electrically connected to a controller.

4. The fabric drying device with disinfection function according to claim 2, characterized in that: Both the upper air inlet pipe (13) and the lower air inlet pipe (15) are connected to a blower, and a heater is installed on the air supply pipe of the blower.

5. The fabric drying device with disinfection function according to claim 1, characterized in that: The rotary drive mechanism includes a slewing bearing (3) at the bottom of the disinfection and drying box (1) and a slewing support (2) for supporting the slewing bearing (3). The slewing bearing (3) includes a support outer ring (32) fixed on the slewing support (2), a support inner ring (33) rotatably disposed within the support outer ring (32), and a servo motor (31) disposed on the slewing support (2) and used to drive the support inner ring (33) to rotate. The inner circumferential wall of the inner ring (33) of the support is provided with internal teeth, and a gear that meshes with the internal teeth is provided on the power output shaft of the servo motor (31).

6. The fabric drying device with disinfection function according to claim 5, characterized in that: The bottom of the rotating cylinder (4) is vertically fixed to the inner ring (33) of the support.

7. The fabric drying device with disinfection function according to claim 1, characterized in that: The hanging rod (5) is a hollow tube with multiple pulse jet holes (51) on its outer wall. A pulse air pump (6) is installed inside the rotating cylinder (4). The pulse air pump (6) is connected to each of the hanging rods (5) through the air guide pipe (61).

8. The fabric drying device with disinfection function according to claim 7, characterized in that: A diagonal brace (52) is provided on the side wall of the rotating cylinder (4) to support the hanging rod (5).

9. The fabric drying device with disinfection function according to claim 1, characterized in that: A first vertical disinfection unit (8) is provided on the outer wall of the rotating cylinder (4) and is offset from the hanging rod (5). A plurality of second vertical disinfection units (9) are provided on the inner wall of the disinfection and drying box (1).

10. The fabric drying device with disinfection function according to claim 9, characterized in that: Multiple top disinfection units (7) and multiple bottom disinfection units (10) are respectively provided at the inner top and inner bottom of the disinfection and drying oven (1); wherein the first vertical disinfection unit (8), the second vertical disinfection unit (9), the top disinfection unit (7) and the bottom disinfection unit (10) are all ultraviolet lamps or microwave generators.

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