Drying equipment for toilet paper processing

By designing separate high-temperature and low-temperature zones, optimizing the hot air jetting method, and establishing a stable conveying mechanism, the problems of uneven drying and moisture regain in toilet paper have been solved, achieving efficient and uniform drying and stable storage.

CN223963748UActive Publication Date: 2026-03-03ANHUI ZIZHU HEALTH TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-13
Publication Date
2026-03-03

AI Technical Summary

Technical Problem

Traditional toilet paper drying methods result in uneven drying, making it difficult to completely evaporate internal moisture. Furthermore, the finished product is susceptible to moisture regain due to environmental humidity, affecting storage stability and usability.

Method used

The design incorporates high-temperature and low-temperature zones, combined with L-shaped air ducts and S-shaped heating pipes for hot air jetting, along with a stable conveying mechanism and moisture-proof treatment, to ensure that toilet paper is dried evenly and to reduce the risk of moisture regain.

Benefits of technology

It improves drying uniformity and storage stability, reduces energy consumption, ensures that toilet paper maintains a suitable degree of dryness after leaving the factory, and improves product quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to drying equipment for toilet paper processing, which comprises an underframe for bearing a conveying mechanism and capable of transferring toilet paper. A drying cabin is arranged above the conveying mechanism, the interior of the drying cabin is sequentially divided into a high-temperature section and a low-temperature section, and an opposite drying mechanism is erected to dry toilet paper; the conveying mechanism is composed of rolling shafts at the head end and the tail end of the bottom frame, a chain wheel and a traction chain, a Z-shaped centralizing rail is arranged in the middle section to lift the traction chain to run circularly, and a plate-shaped chain plate is attached to the inner side of the traction chain to carry toilet paper. The drying mechanism comprises a square box cover mounted at the top of the drying cabin, an L-shaped air pipe is inserted in the square box cover, the long end of the air pipe is connected with a high-speed fan, a bamboo-hat-shaped air outlet sleeves the lower part of the air pipe, and an S-shaped heating pipe is coiled in the air outlet and can jet hot air along with the fan; the high-temperature section is used for high-temperature drying, and the low-temperature section is used for low-temperature moisture prevention to ensure uniform drying of toilet paper; the defects of a traditional drying mode are overcome, the drying uniformity and storage stability of the toilet paper are improved, and the high practical value is achieved.
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Description

Technical Field

[0001] This utility model belongs to the technical field of toilet paper drying equipment, and specifically relates to a drying equipment for toilet paper processing. Background Technology

[0002] With the increasing demand for quality of life, especially in modern society where hygiene, comfort, and quality requirements are constantly rising, toilet paper drying technology has gradually developed and become an indispensable core link in toilet paper production lines. Toilet paper undergoes multiple steps in the papermaking process, including wet forming, pressing and dewatering, and drying and shaping. The effectiveness of the drying process determines the moisture content and softness of the toilet paper. However, due to the relatively loose fiber structure and strong hygroscopicity of toilet paper, moisture is often difficult to completely evaporate during the drying process, resulting in residual moisture in the finished toilet paper, affecting its storage stability and usability.

[0003] Traditional toilet paper drying methods primarily rely on high-temperature hot air drying, where hot air penetrates the paper's fiber structure to evaporate internal moisture. However, due to the thinness of toilet paper and its large, stacked transport, the penetration of hot air through the paper layers is severely limited, making it difficult for internal moisture to evaporate quickly. Especially after short-term high-temperature drying, surface moisture evaporates rapidly, while internal moisture remains, resulting in uneven drying. Furthermore, if the drying temperature is too high, it is usually controlled within a certain range to prevent the paper from becoming brittle or even scorching, which further restricts complete moisture evaporation. On the other hand, if toilet paper is not effectively dehumidified after drying, it may reabsorb moisture due to environmental humidity, causing the finished toilet paper to become damp during storage or transportation, affecting its feel and even potentially leading to bacterial growth. Therefore, a new type of drying equipment for toilet paper processing has emerged. Utility Model Content

[0004] This utility model addresses the shortcomings of existing technologies by providing a drying device for toilet paper processing. The specific technical solution is as follows:

[0005] This utility model provides a drying device for toilet paper processing, which includes a base frame supporting a conveying mechanism for immediate transfer of toilet paper. A drying chamber is provided above the conveying mechanism, which is divided into a high-temperature section and a low-temperature section. A drying mechanism is mounted above the conveying mechanism to dry and transfer toilet paper. The conveying mechanism includes rollers passing through the two ends of the base frame, with sprockets fitted at both ends. A traction chain is engaged between the sprockets on the same side, and a Z-shaped cross-section straightening rail is mounted in the middle section to support the upper part of the traction chain for cyclic reciprocating motion. Plate-shaped chain plates are attached to the inner side of the traction chain for combined transport of toilet paper.

[0006] The drying mechanism includes a square box cover mounted on the top of the drying chamber, with an L-shaped air duct inserted inside. A high-speed fan is longitudinally connected to the long end of the air duct, and a sleeve-shaped air outlet is fitted below it. An S-shaped heating tube is coiled inside the air outlet, which can spray high-temperature hot air with the fan. The hot air in the high-temperature section is different from that in the low-temperature section. The high-temperature section dries at high temperature, while the low-temperature section prevents moisture at low temperature.

[0007] As a preferred technical solution of this utility model, the bottom side of the chain plate is vertically connected to a rotatable stabilizing wheel, the outer circumference of which is in contact with the straightening rail, and can provide secondary fixation for the movement of the chain plate as the traction chain rotates, for shock-absorbing conveying of toilet paper drying.

[0008] As a preferred technical solution of this utility model, the bottom of the straightening rail is provided with a clamping rail parallel to it, which clamps the lower part of the traction chain and can provide multiple fixation for the movement of the chain plate as the traction chain rotates, for the non-destructive conveying of toilet paper drying.

[0009] As a preferred technical solution of this utility model, the side of the air outlet extends downward from the top wall of the drying chamber and is provided with a heat insulation plate, which can guide the drying airflow back for efficient circulation of toilet paper drying.

[0010] As a preferred technical solution of this utility model, the chain plate has a hollow bottom design, which can reduce the rolling load of the traction chain and enable the long-term use of the conveying mechanism.

[0011] As a preferred technical solution of this utility model, a sterilization section is provided after the low temperature section, and a UV sterilization lamp is installed on the inner side of the section, which can sterilize the toilet paper instantly as it is dried.

[0012] The beneficial effects of this utility model are:

[0013] 1. Combination of high-temperature and low-temperature sections improves drying uniformity: This toilet paper drying equipment adopts a zoned design with high-temperature and low-temperature sections. The high-temperature section is used to quickly evaporate the moisture on the surface of the toilet paper, while the low-temperature section is used to further stabilize the drying effect and play a role in moisture prevention. This segmented treatment method can avoid the problems of excessively rapid surface moisture evaporation and internal moisture residue caused by single high-temperature drying, thus improving drying uniformity.

[0014] 2. Optimized hot air jetting method to improve drying efficiency: The drying mechanism of the equipment adopts an L-shaped air duct design and provides strong hot air through a high-speed fan. Combined with a conical air outlet and an S-shaped heating tube, the hot air can be evenly distributed, ensuring that the toilet paper is heated evenly during the conveying process. This optimized hot air jetting method improves drying efficiency while reducing energy consumption.

[0015] 3. Stable operation of the conveying mechanism ensures even heating of toilet paper: The conveying mechanism of this equipment adopts a design of rollers, sprockets, traction chains, and Z-shaped straightening rails to ensure stable conveying of toilet paper during the drying process and avoid local overheating or underheating caused by uneven conveying. In addition, the chain plate structure design can effectively support the toilet paper, keeping it stable during the drying process and improving the drying quality.

[0016] 4. Reduced risk of moisture regain and improved storage stability: The low-temperature section is designed not only for the final stage of drying but also for post-drying moisture protection of the toilet paper, reducing the impact of ambient humidity and thus lowering the risk of moisture regain and improving storage stability. This dual control method ensures that the toilet paper maintains appropriate dryness after leaving the factory, improving product quality.

[0017] In summary, this toilet paper drying equipment overcomes the shortcomings of traditional drying methods by combining high-temperature and low-temperature sections, optimizing the hot air jetting method, establishing a stable conveying mechanism, and implementing a moisture-proof design. It improves the drying uniformity and storage stability of toilet paper and has high practical value. Attached Figure Description

[0018] Figure 1 A schematic diagram of the overall structure of this utility model is shown;

[0019] Figure 2 A front view of the present invention is shown;

[0020] Figure 3 It shows Figure 2 Cross-sectional view of section AA in the middle;

[0021] Figure 4 It shows Figure 1 Enlarged view of part B in the middle;

[0022] Figure 5 A three-dimensional structural schematic diagram of the drying mechanism in this utility model is shown;

[0023] The diagram shows: 1. Base frame; 2. Conveying mechanism; 21. Roller; 22. Traction chain; 23. Chain plate; 231. Stabilizing wheel; 232. Alignment rail; 233. Clamping rail; 3. Drying chamber; 31. High temperature section; 32. Low temperature section; 33. Sterilization section; 4. Drying mechanism; 41. Heating tube; 42. Fan; 43. Air duct; 44. Heat insulation plate; 45. Air outlet; 46. Cover. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this utility model.

[0025] Example 1

[0026] To address the technical problems in the background section, the following drying equipment for toilet paper processing is provided:

[0027] Combination Figure 1-5 As shown, a toilet paper drying device includes a base frame 1 that supports a conveying mechanism 2 for immediate transfer of toilet paper. A drying chamber 3 is mounted above the conveying mechanism 2 and is divided into a high-temperature section 31 and a low-temperature section 32. A drying mechanism 4 is mounted above the conveying mechanism 2 and is arranged opposite to each other for drying and transferring toilet paper. The conveying mechanism 2 includes rollers 21 that pass through the two ends of the base frame 1. Sprockets are fitted at both ends of the rollers. A traction chain 22 is engaged between the sprockets on the same side. A Z-shaped guide rail 232 is mounted in the middle section to support the upper part of the traction chain 22 for reciprocating circulation. A plate-shaped chain plate 23 is attached to the inner side of the traction chain 22 for transporting toilet paper.

[0028] The drying mechanism 4 includes a square box cover 46 mounted on the top of the drying chamber 3, with an L-shaped air duct 43 inserted inside. A high-speed fan 42 is longitudinally connected to the long end of the air duct 43, and a sleeve-shaped air outlet 45 is sleeved below it. An S-shaped heating tube 41 is coiled inside the air outlet 45, which can spray high-temperature hot air with the fan 42. The hot air in the high-temperature section 31 is different from that in the low-temperature section 32. The high-temperature section 31 dries at high temperature, while the low-temperature section 32 is low-temperature and moisture-proof.

[0029] Please refer to the instruction manual appendix. Figure 1-5 This utility model provides a first embodiment of a drying device for toilet paper processing. In this embodiment, the drying device mainly consists of a base frame 1, on which a conveying mechanism 2 is mounted for immediate transfer of toilet paper. A drying chamber 3 is mounted above the conveying mechanism 2. The drying chamber 3 is divided into a high-temperature section 31 and a low-temperature section 32. A drying mechanism 4 is mounted on top of the chamber, which can dry the toilet paper during transfer. The conveying mechanism 2 includes rollers 21 passing through both ends of the base frame 1. Sprockets are fitted at both ends of the rollers 21. A traction chain 22 is engaged between the sprockets. A Z-shaped cross-section straightening rail 232 is mounted in the middle of the traction chain 22. The straightening rail 232 can support the upper part of the traction chain 22, causing the traction chain 22 to move cyclically along the conveying path. Plate-shaped chain plates 23 are attached to the inner side of the traction chain 22. The chain plates 23 can be combined to carry the toilet paper, keeping the toilet paper stable during transport.

[0030] Preferably, in order to achieve more efficient drying of toilet paper, in this embodiment, the drying mechanism 4 includes a square cover 46 mounted on the top of the drying chamber 3. An L-shaped air duct 43 is inserted inside the square cover 46. A high-speed fan 42 is longitudinally connected to the long end of the L-shaped air duct 43, which can provide strong hot air flow. A sleeve-shaped air outlet 45 is sleeved below the L-shaped air duct 43. An S-shaped heating tube 41 is coiled inside the sleeve-shaped air outlet 45. The S-shaped heating tube 41 can spray high-temperature hot air with the fan 42, so that a stable hot air circulation is formed inside the drying chamber 33.

[0031] Furthermore, in this embodiment, to better achieve the zoned drying effect of the high-temperature section 31 and the low-temperature section 32, the high-temperature section 31 has a higher drying temperature to quickly evaporate the moisture on the surface of the toilet paper, while the low-temperature section 32 has a lower drying temperature, mainly serving a moisture-proof function to ensure that the toilet paper maintains a suitable moisture content after drying. The internal structural design of the drying chamber 3 ensures that the hot air flow directions of the high-temperature section 31 and the low-temperature section 32 remain independent, avoiding hot air mixing that could affect the drying effect, thereby ensuring that the toilet paper can be heated evenly during the drying process and achieve an ideal drying state.

[0032] Example 2

[0033] Combination Figure 1-4 As shown, based on the above embodiments, this embodiment further provides the following:

[0034] In this embodiment, a rotatable stabilizing wheel 231 is vertically connected to the bottom side of the chain plate 23. Its outer circumferential surface is in contact with the straightening rail 232. It can provide secondary fixation for the movement of the chain plate 23 as the traction chain 22 rotates, and is used for shock-absorbing conveying of toilet paper drying.

[0035] The bottom of the straightening rail 232 is provided with a clamping rail 233 parallel to it, which clamps the lower part of the traction chain 22. It can provide multiple fixation for the movement of the chain plate 23 as the traction chain 22 rotates, and is used for non-destructive conveying of toilet paper drying.

[0036] The chain plate 23 has a hollow bottom design, which can reduce the rolling load on the traction chain 22 and enable the long-term use of the conveying mechanism 2.

[0037] Please refer to the instruction manual appendix. Figure 1-4 This utility model provides a second embodiment of a drying device for toilet paper processing. In this embodiment, the conveying mechanism 2 of the drying device for toilet paper processing is mainly composed of a traction chain 22. A plate-shaped chain plate 23 is attached to the inner side of the traction chain 22. A rotatable stabilizing wheel 231 is vertically connected to the bottom side of the chain plate 23. The outer circumferential surface of the stabilizing wheel 231 is attached to the straightening rail 232. It can provide secondary fixation for the movement of the chain plate 23 as the traction chain 22 rotates, so that the toilet paper remains stable during the conveying process and the drying process is smooth.

[0038] Preferably, to further improve the stability of the conveying mechanism 2, in this embodiment, a clamping rail 233 parallel to the bottom of the straightening rail 232 is provided. The clamping rail 233 clamps the lower part of the traction chain 22 between the straightening rail 232 and the clamping rail 233, so that the traction chain 22 can maintain stable operation during the conveying process. The clamping rail 233 can provide multiple fixations for the movement of the chain plate 23 as the traction chain 22 rotates, further enhancing the stability of the conveying mechanism 2 and avoiding uneven drying and damage of toilet paper due to shaking and deviation during the conveying process.

[0039] Furthermore, in this embodiment, to reduce the rolling load on the traction chain 22 and improve the service life of the conveying mechanism 2, the chain plate 23 adopts a bottom hollow design. The hollow structure can effectively reduce the overall weight of the chain plate 23, reduce the load pressure on the traction chain 22 during operation, enable the conveying mechanism 2 to operate stably for a long time, and improve its durability. At the same time, the hollow design does not affect the load-bearing capacity of the chain plate 23 for toilet paper, ensuring that the toilet paper can still maintain a stable conveying state during the conveying process.

[0040] Example 3

[0041] Combination Figure 1-3 As shown, based on the above embodiments, this embodiment further provides the following:

[0042] In this embodiment, a heat insulation plate 44 is provided on the side of the air outlet 45 extending downward from the top wall of the drying chamber 3, which can guide the drying airflow back for efficient circulation of toilet paper drying.

[0043] A sterilization section 33 is provided after the low-temperature section 32, and a UV sterilization lamp is installed on its inner side, which can sterilize the toilet paper as it passes through.

[0044] Please refer to the instruction manual appendix. Figure 1-3 This utility model provides a third embodiment of a drying equipment for toilet paper processing. In this embodiment, a heat insulation plate 44 is provided on the side of the air outlet 45 of the drying equipment, extending downward from the top wall of the drying chamber 3. The heat insulation plate 44 can guide the drying airflow back, so that the hot air forms a circulation flow inside the drying chamber 3, ensuring that the toilet paper is continuously subjected to the hot air during the conveying process and improving the drying stability.

[0045] Preferably, in order to better improve the hygiene quality of toilet paper, in this embodiment, a sterilization section 33 is provided behind the low temperature section 32, and a UV sterilization lamp is mounted on the inner side of the sterilization section 33. The UV sterilization lamp can sterilize the toilet paper immediately after drying, ensuring that the toilet paper can be effectively sterilized after drying, thereby improving the hygiene standards of the product.

[0046] Furthermore, in this embodiment, the installation position of the UV germicidal lamp is optimized to cover the entire conveying path, ensuring that all toilet paper passing through is irradiated with ultraviolet light, thus avoiding uneven sterilization caused by positional deviations. Simultaneously, the light intensity of the UV germicidal lamp is rationally set to ensure that sterilization does not affect the physical properties of the toilet paper, maintaining stable quality after drying.

[0047] Working principle and usage process of this utility model:

[0048] Toilet paper is first placed on the conveying mechanism 2. During the conveying process, the upper part of the traction chain 22 passes through the Z-shaped cross-section of the straightening rail 232. The straightening rail 232 can support the traction chain 22 and keep it stable during the conveying process. At the same time, the bottom side of the chain plate 23 is vertically connected to a rotatable stabilizing wheel 231. The outer circumference of the stabilizing wheel 231 is in contact with the straightening rail 232 and can provide secondary fixation for the movement of the chain plate 23 as the traction chain 22 rotates, ensuring that the toilet paper remains stable during the conveying process.

[0049] When toilet paper enters the drying chamber 3, it first passes through the high-temperature section 31. The drying mechanism 4 of the high-temperature section 31 consists of a square box cover 46 mounted on the top of the drying chamber 3. An L-shaped air duct 43 is inserted inside the box cover 46. A high-speed fan 42 is longitudinally connected to the long end of the air duct 43. After the high-speed fan 42 is started, it drives hot air into the air duct 43. A sleeve-shaped air outlet 45 is fitted below the air duct 43. An S-shaped heating tube 41 is coiled inside the air outlet 45. The heating tube 41 can spray high-temperature hot air with the fan 42 to dry the toilet paper at high temperature. During the drying process in the high-temperature section 31, a heat insulation plate 44 is installed on the side of the air outlet 45 extending downward from the top wall of the drying chamber 3. The heat insulation plate 44 can guide the drying airflow back, so that the hot air circulates within the drying chamber 3, ensuring that the drying airflow fully acts on the toilet paper.

[0050] After passing through the high-temperature section 31, the toilet paper enters the low-temperature section 32. The hot air temperature in the low-temperature section 32 is relatively low, mainly for moisture prevention, ensuring that the toilet paper maintains a suitable moisture content after drying. Following the low-temperature section 32 is a sterilization section 33, with a UV germicidal lamp mounted on its inner side. After passing through the low-temperature section 32, the toilet paper enters the sterilization section 33, where the UV germicidal lamp irradiates the toilet paper with ultraviolet light, achieving immediate sterilization.

[0051] Throughout the conveying process, a clamping rail 233 parallel to the bottom of the straightening rail 232 is provided. The clamping rail 233 clamps the lower part of the traction chain 22 between the straightening rail 232 and the clamping rail 233, providing multiple fixations for the movement of the chain plate 23 as the traction chain 22 rotates, ensuring the stability of the toilet paper during conveying. Simultaneously, the chain plate 23 features a hollowed-out bottom design, reducing the rolling load on the traction chain 22 and enabling the conveying mechanism 2 to operate stably for extended periods. After the toilet paper has finished drying and sterilization, it is transported out of the drying chamber 3 by the conveying mechanism 2, completing the entire drying process.

[0052] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A drying device for toilet paper processing, comprising a base frame (1) supporting a conveying mechanism (2) for immediate transfer of toilet paper, wherein a drying chamber (3) is provided above the conveying mechanism (2), and is sequentially divided into a high-temperature section (31) and a low-temperature section (32), and a drying mechanism (4) is provided above the conveying mechanism (2) for drying and transferring toilet paper, characterized in that: The conveying mechanism (2) includes rollers (21) respectively passing through the two ends of the base frame (1), with sprockets sleeved at both ends. A traction chain (22) is engaged between the sprockets on the same side, and a Z-shaped cross-section straightening rail (232) is mounted in the middle section to support the upper part of the traction chain (22) for repeated circulation. The inner side of the traction chain (22) is attached with a plate-shaped chain plate (23) which can be combined to transport toilet paper. The drying mechanism (4) includes a square box cover (46) mounted on the top of the drying chamber (3), with an L-shaped air duct (43) inserted inside. A high-speed fan (42) is longitudinally connected to the long end of the air duct (43), and a sleeve-shaped air outlet (45) is sleeved below it. An S-shaped heating tube (41) is coiled inside the air outlet (45), which can spray high-temperature hot air with the fan (42). The hot air in the high-temperature section (31) is different from that in the low-temperature section (32). The high-temperature section (31) dries at high temperature, while the low-temperature section (32) is low-temperature and moisture-proof.

2. The drying equipment for toilet paper processing according to claim 1, characterized in that: The bottom side of the chain plate (23) is vertically connected to a rotatable stabilizing wheel (231), the outer circumference of which is in contact with the straightening rail (232). It can provide secondary fixation for the movement of the chain plate (23) as the traction chain (22) rotates, and is used for shock-absorbing conveying of toilet paper drying.

3. The drying equipment for toilet paper processing according to claim 2, characterized in that: The bottom of the straightening rail (232) is provided with a clamping rail (233) parallel to it, which clamps the lower part of the traction chain (22) and can provide multiple fixation for the movement of the chain plate (23) as the traction chain (22) rotates, for non-destructive conveying of toilet paper drying.

4. The drying equipment for toilet paper processing according to claim 3, characterized in that: The side of the air outlet (45) extends downward from the top wall of the drying chamber (3) and is provided with a heat insulation plate (44), which can guide the drying airflow back for efficient circulation of toilet paper drying.

5. The drying equipment for toilet paper processing according to claim 4, characterized in that: The chain plate (23) has a hollow bottom design, which can reduce the rolling load of the traction chain (22) and enable the long-term use of the conveying mechanism (2).

6. A drying device for toilet paper processing according to any one of claims 1-5, characterized in that: A sterilization section (33) is provided after the low-temperature section (32), and a UV sterilization lamp is installed on its inner side, which can sterilize the toilet paper as it passes through.