Drying device for laundry sheet drying oven

By designing an L-shaped air duct and air volume regulation system in the drying device, the problems of low efficiency and uneven heat utilization in the laundry sheet drying equipment were solved, achieving efficient and stable drying results.

CN224266747UActive Publication Date: 2026-05-22WUXI LEILEJIA MASCH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUXI LEILEJIA MASCH CO LTD
Filing Date
2025-04-21
Publication Date
2026-05-22

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    Figure CN224266747U_ABST
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Abstract

The utility model relates to the technical field of drying equipment, in particular to a drying device for a laundry sheet drying oven, which comprises a drying oven, a drying frame, a drying conveying belt, a hot air frame and an L-shaped air duct, an L-shaped air duct is arranged at the air inlet end of the draught fan box and connected to an air outlet cover, an air inlet pipe is arranged at the air inlet end of the draught fan box, an air inlet of the air inlet pipe extends to the upper side of the drying frame, the L-shaped air duct is used for guiding hot air output by the draught fan box, heat flow can flow to the air outlet cover through the L-shaped air duct, and then the surface of the drying conveying belt is dried. The air inlet of the air inlet pipe extends to the upper side of the drying frame, and hot air on the upper side of the drying frame can be recycled through the air inlet pipe, so that the working efficiency of the fan box is improved, and the working loss of the fan box is reduced.
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Description

Technical Field

[0001] This utility model relates to the field of drying equipment technology, and in particular to a drying device for a laundry sheet drying oven. Background Technology

[0002] Laundry detergent sheets are products made by crushing, mixing, shaping, and drying various components. The production methods are mostly manual brushing and natural air drying, which are too traditional, inefficient, and fail to meet market demand, creating significant obstacles to the widespread use of laundry detergent sheets. Secondly, the internal structure of current laundry detergent sheet drying ovens is relatively simple, consisting of multiple layers. This design results in uneven heating of the sheets, making them prone to deformation and cracking. Furthermore, effectively utilizing the drying heat source, reducing heat loss, and improving the efficiency of the drying equipment during the drying process requires heat recycling. Therefore, a drying device for laundry detergent sheet drying ovens is needed. Utility Model Content

[0003] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a drying device for laundry detergent drying oven, which solves the problem of improving the drying effect of laundry detergent in the prior art.

[0004] To achieve the above and other related objectives, this utility model provides the following technical solution:

[0005] A drying device for a laundry detergent drying oven includes a drying oven and further includes:

[0006] A drying rack is located inside a drying oven. The drying rack is equipped with drying rollers, and the drying rollers are equipped with a drying conveyor belt for carrying laundry sheets.

[0007] A hot air rack is provided with multiple sets of air outlet hoods, the openings of which face the drying rack. A fan box is provided on the lower side of the hot air rack, and an L-shaped air duct is provided at the air outlet of the fan box, which is connected to the air outlet hood. An air inlet pipe is provided at the air inlet end of the fan box, and the air inlet of the air inlet pipe extends to the upper side of the drying rack.

[0008] To achieve the above technical solution, the drying conveyor belt can carry the laundry sheets to be dried for drying. By installing multiple sets of air outlet hoods on the hot air rack, the fan box outputs hot air to the air outlet hoods, which heats the surface of the drying conveyor belt, thereby increasing the temperature of the drying conveyor belt and drying the laundry sheets on it. By setting an L-shaped air duct connected to the air outlet hood, the L-shaped air duct can guide the hot air output from the fan box, allowing the hot air to flow through the L-shaped air duct to the air outlet hood, thereby drying the surface of the drying conveyor belt. By extending the air inlet of the air inlet pipe to the upper side of the drying rack, the hot air on the upper side of the drying rack can be recovered and reused by the air inlet pipe, thereby improving the working efficiency of the fan box and reducing the working loss of the fan box.

[0009] In one embodiment of the present invention, the short side of the L-shaped air duct is connected to the fan box, and multiple sets of air volume regulating boxes are provided on the long side of the L-shaped air duct, with each set of air volume regulating boxes connected to the air outlet hood.

[0010] To achieve the above technical solution, multiple sets of air volume regulating boxes are installed on the long side of the L-shaped air duct. The air volume at each set of air outlet hoods can be adjusted using the air box regulating boxes, thereby achieving the effect of independently controlling the air volume of each set of air outlet hoods.

[0011] In one embodiment of this utility model, the air volume regulating box is provided with a rotatable blade, and an adjusting rod extending out of the air volume regulating box is provided on one side of the blade. Rotating the adjusting rod adjusts the size of the ventilation area of ​​the air volume regulating box.

[0012] To achieve the above technical solution, a rotatable blade is installed inside the air volume regulating box. By rotating the regulating rod, the rotation angle of the blade can be adjusted to change the size of the ventilation area inside the air volume regulating box, thereby enabling control of the air volume and adjusting the heating effect at different positions on the drying conveyor belt.

[0013] In one embodiment of this utility model, the adjusting rod is provided with an adjusting handle.

[0014] To achieve the above technical solution, an adjustment handle is provided on the adjustment rod to facilitate manual adjustment of the blade angle. The blade angle can be adjusted by manually rotating the adjustment handle from the outside.

[0015] In one embodiment of the present invention, a flow guide is provided between the air inlet pipe and the fan box. The flow guide is a flow guide with a trapezoidal cross-section, and the opening end of the flow guide faces the end of the air inlet pipe.

[0016] To achieve the above technical solution, the deflector can guide the airflow at the air inlet of the fan box. The deflector is a trapezoidal deflector, which can better cooperate with the air inlet pipe to achieve stable delivery of airflow in the air inlet pipe.

[0017] In one embodiment of the present invention, a guide pipe is provided between the air inlet pipe and the air inlet, and the guide pipe is located inside the oven on the side away from the fan box.

[0018] To achieve the above technical solution, the guide pipe can guide the airflow entering the air inlet. Placing the guide pipe inside the oven away from the fan box can improve the airflow smoothness, meet the air intake requirements of the fan box, and ensure the stable operation of the hot air blower inside the fan box.

[0019] In one embodiment of the present invention, a roller groove is provided between the two ends of the drying roller and the drying frame, and the two ends of the drying roller are rotatably connected in the roller groove.

[0020] The above technical solution involves rotatably connecting both ends of the drying roller within the roller groove, which facilitates the stable operation of the drying roller.

[0021] In one embodiment of the present invention, a support is provided between the drying rack and the drying oven, the support supports the bottom of the drying rack in a suspended manner, and multiple sets of the support are provided along the length of the drying rack.

[0022] The above technical solution achieves the goal of suspending the bottom of the drying rack by supporting it with brackets, which provides operating space for the drying conveyor belt and ensures the stability of the drying conveyor belt. Multiple sets of brackets are set along the length of the drying rack, which can improve the reliability of the brackets supporting the drying rack.

[0023] As described above, the drying device for a laundry sheet drying oven of this utility model has the following beneficial effects: by setting an L-shaped air duct connected to the air outlet hood, the L-shaped air duct can be used to guide the hot air output from the fan box, so that the hot air can flow through the L-shaped air duct to the air outlet hood, thereby drying the surface of the drying conveyor belt. By extending the air inlet of the air inlet pipe to the upper side of the drying rack, the hot air on the upper side of the drying rack can be recovered and reused by the air inlet pipe, thereby improving the working efficiency of the fan box and reducing the working loss of the fan box. Attached Figure Description

[0024] Figure 1 The diagram shown is a structural schematic of the drying device for a laundry sheet drying oven disclosed in an embodiment of this utility model.

[0025] Figure 2 The diagram shown is a schematic diagram of the L-shaped air duct structure of the drying device for a laundry sheet drying oven disclosed in an embodiment of this utility model.

[0026] Figure 3 The diagram shown is a schematic diagram of the flow guide structure of the drying device for the laundry sheet drying oven disclosed in the embodiments of this utility model.

[0027] Figure 4 Displayed as Figure 3 A partial enlarged view of the figure marked A in the attached diagram.

[0028] Figure 5 Displayed as Figure 3 A magnified view of part labeled B in the attached figure.

[0029] Figure 6 The diagram shown is a schematic of the airflow regulating box of the drying device for a laundry sheet drying oven disclosed in this embodiment of the present invention.

[0030] Figure 7 The diagram shown is a schematic diagram of the guide pipe structure of the drying device for the laundry sheet drying oven disclosed in the embodiments of this utility model.

[0031] Component designation explanation

[0032] 1. Drying rack; 2. Drying roller; 3. Drying oven; 4. Drying conveyor belt; 5. Hot air rack; 6. Air outlet hood; 7. Fan box; 8. L-shaped air duct; 9. Air inlet pipe; 10. Air volume regulating box; 11. Adjusting rod; 12. Paddle; 13. Adjusting handle; 14. Flow guide hood; 15. Flow guide pipe; 16. Support; 17. Roller groove. Detailed Implementation

[0033] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. It should be noted that, unless otherwise specified, the following embodiments and features can be combined with each other.

[0034] Please see Figures 1 to 7 This utility model provides a drying device for a laundry sheet drying oven, including an oven 3 and a drying rack 1 located inside the oven 3. The drying rack 1 is equipped with a drying roller 2, and the drying roller 2 is equipped with a drying conveyor belt 4 for carrying laundry sheets. The hot air rack 5 is equipped with multiple sets of air outlet hoods 6, and the openings of the air outlet hoods 6 are set towards the drying rack 1. A fan box 7 is provided on the lower side of the hot air rack 5. An L-shaped air duct 8 is provided at the air outlet of the fan box 7 and is connected to the air outlet hood 6. An air inlet pipe 9 is provided at the air inlet end of the fan box 7 and the air inlet of the air inlet pipe 9 extends to the upper side of the drying rack 1.

[0035] The drying conveyor belt 4 carries the laundry sheets to be dried for drying. Multiple air outlet hoods 6 are installed on the hot air frame 5. Hot air is output from the fan box 7 to the air outlet hoods 6, heating the surface of the drying conveyor belt 4 and increasing its temperature. This allows the laundry sheets on the conveyor belt 4 to be dried. An L-shaped air duct 8 connects to the air outlet hoods 6, guiding the hot air output from the fan box 7 to the air outlet hoods 6 for further drying. Extending the air inlet of the air inlet pipe 9 to the upper side of the drying rack 1 allows for the recycling and reuse of hot air from the upper side of the drying rack 1, improving the working efficiency of the fan box 7 and reducing its wear and tear.

[0036] The short side of the L-shaped air duct 8 is connected to the fan box 7. Multiple sets of air volume regulating boxes 10 are installed on the long side of the L-shaped air duct 8. Each set of air volume regulating boxes 10 is connected to the air outlet hood 6. By installing multiple sets of air volume regulating boxes 10 on the long side of the L-shaped air duct 8, the air volume at each set of air outlet hoods 6 can be adjusted by using the air box regulating boxes, so as to achieve the effect of independently controlling the air volume of each set of air outlet hoods 6.

[0037] The air volume regulating box 10 is equipped with a rotatable blade 12. An adjusting rod 11 extending out of the air volume regulating box 10 is provided on one side of the blade 12. Rotating the adjusting rod 11 adjusts the size of the ventilation area of ​​the air volume regulating box 10. By providing a rotatable blade 12 in the air volume regulating box 10 and rotating the adjusting rod 11, the rotation angle of the blade 12 can be adjusted to achieve the size of the ventilation area in the air volume regulating box 10, thereby enabling the control of the air volume and adjusting the heating effect at different positions on the drying conveyor belt 4.

[0038] An adjustment handle 13 is provided on the adjustment rod 11. In order to facilitate manual adjustment of the blade 12 angle, the adjustment handle 13 is provided on the adjustment rod 11. The blade 12 angle can be adjusted by manually turning the adjustment handle 13 from the outside.

[0039] A guide shroud 14 is installed between the air inlet duct 9 and the fan box 7. The guide shroud 14 has a trapezoidal cross-section and its open end faces the air inlet duct 9. The guide shroud 14 can guide the airflow at the air inlet end of the fan box 7. The trapezoidal cross-section of the guide shroud 14 can better cooperate with the air inlet duct 9 to achieve stable delivery of airflow in the air inlet duct 9.

[0040] A guide pipe 15 is provided between the air inlet pipe 9 and the air inlet. The guide pipe 15 is located inside the oven 3 on the side away from the fan box 7. The guide pipe 15 can guide the airflow entering the air inlet pipe 9 at the air inlet. The guide pipe 15 is located inside the oven 3 on the side away from the fan box 7, which can improve the airflow smoothness, meet the air intake requirements of the fan box 7, and ensure that the hot air blower inside the fan box 7 can operate stably.

[0041] The drying roller 2 has roller grooves 17 between its two ends and the drying rack 1. The two ends of the drying roller 2 are rotatably connected in the roller grooves 17. By rotatably connecting the two ends of the drying roller 2 in the roller grooves 17, the drying roller 2 can be easily and stably operated.

[0042] A support 16 is provided between the drying rack 1 and the drying oven 3. The support 16 supports the bottom of the drying rack 1 and suspends it in the air. Multiple sets of the support 16 are arranged along the length of the drying rack 1. By supporting the bottom of the drying rack 1 in the air, the support 16 can provide operating space for the drying conveyor belt 4 and ensure the operating stability of the drying conveyor belt 4. The multiple sets of the support 16 along the length of the drying rack 1 can improve the reliability of the support 16 for the drying rack 1.

[0043] This invention, by setting an L-shaped air duct connected to the air outlet hood, can guide the hot air output from the fan box, allowing the hot air to flow through the L-shaped air duct to the air outlet hood, thereby drying the surface of the drying conveyor belt. By extending the air inlet of the air inlet pipe to the upper side of the drying rack, the hot air on the upper side of the drying rack can be recovered and reused, thereby improving the working efficiency of the fan box and reducing the working loss of the fan box.

[0044] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit this utility model. All equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A drying device for a laundry detergent drying oven, comprising a drying oven, characterized in that, Also includes: A drying rack is located inside a drying oven. The drying rack is equipped with drying rollers, and the drying rollers are equipped with a drying conveyor belt for carrying laundry sheets. A hot air rack is provided with multiple sets of air outlet hoods, the openings of which face the drying rack. A fan box is provided on the lower side of the hot air rack, and an L-shaped air duct is provided at the air outlet of the fan box, which is connected to the air outlet hood. An air inlet pipe is provided at the air inlet end of the fan box, and the air inlet of the air inlet pipe extends to the upper side of the drying rack.

2. The drying device for a laundry detergent drying oven according to claim 1, characterized in that: The short side of the L-shaped air duct is connected to the fan box, and multiple sets of air volume regulating boxes are provided on the long side of the L-shaped air duct. Each set of air volume regulating boxes is connected to the air outlet hood.

3. The drying device for a laundry detergent drying oven according to claim 2, characterized in that: The air volume regulating box is equipped with a rotatable blade, and an adjusting rod extending out of the air volume regulating box is provided on one side of the blade. Rotating the adjusting rod adjusts the size of the ventilation area of ​​the air volume regulating box.

4. The drying device for a laundry detergent drying oven according to claim 3, characterized in that: An adjustment handle is provided on the adjustment rod.

5. The drying device for a laundry detergent drying oven according to claim 1, characterized in that: A flow guide shroud is provided between the air inlet pipe and the fan box. The flow guide shroud has a trapezoidal cross-section and its open end faces the air inlet pipe.

6. The drying device for a laundry detergent drying oven according to claim 1, characterized in that: A guide pipe is provided between the air inlet pipe and the air inlet, and the guide pipe is located inside the oven on the side away from the fan box.

7. The drying device for a laundry detergent drying oven according to claim 1, characterized in that: The drying roller has roller grooves between its two ends and the drying rack, and the two ends of the drying roller are rotatably connected in the roller grooves.

8. The drying device for a laundry detergent drying oven according to claim 1, characterized in that: A support frame is provided between the drying rack and the drying oven. The support frame supports the bottom of the drying rack and suspends it in the air. Multiple sets of the support frame are provided along the length of the drying rack.