Rotary cut sago anti-sticking slicer

By incorporating a three-cooling-air-channel structure into the rotary-cut lotus root starch slicer, the problem of lotus root slices sticking together is solved by using cold air to lower the temperature, thereby improving slicing quality and efficiency, reducing equipment maintenance costs, and ensuring food safety.

CN122125782APending Publication Date: 2026-06-02HUBEI FAFENGMAO AGRICULTURAL SCIENCE & TECHNOLOGY DEVELOPMENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HUBEI FAFENGMAO AGRICULTURAL SCIENCE & TECHNOLOGY DEVELOPMENT CO LTD
Filing Date
2026-04-09
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing rotary lotus root slicers are prone to lotus root slices sticking together during the cutting process, which affects slicing efficiency and quality, and is difficult to clean, posing a food safety hazard.

Method used

The design incorporates a three-channel cooling system, covering the feeding area, cutting area, and slice receiving area respectively. The cooling air lowers the temperature to reduce starch stickiness and prevent lotus root slices from sticking together.

Benefits of technology

It effectively prevents lotus root slices from sticking together, ensuring slicing quality and efficiency, reducing equipment maintenance costs, and guaranteeing food safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention relates to the field of lotus root starch processing technology and discloses a rotary-cutting lotus root starch anti-sticking slicing machine, the core of which adopts a three-cooling-air-channel anti-sticking technology. A drive motor is fixed to the bottom wall inside the equipment casing. The drive motor drives the rotating shaft, blade holder, and cutter to rotate at high speed through a flexible coupling to complete the rotary cutting. A food-grade PP material water collection tank is located inside the casing, below the first air guide hood. The bottom of the tank has a drain plug to collect lotus root juice and condensate, preventing wastewater overflow. The three-cooling-air-channel precisely acts on the cutting surface, slicing disc, and feeding area. Combined with a stable drive system and wastewater collection structure, this effectively solves the problem of lotus root slice sticking during cutting, improving processing efficiency and cleanliness.
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Description

Technical Field

[0001] This invention relates to the field of lotus root starch processing technology, and in particular to a rotary-cut lotus root starch anti-sticking slicer. Background Technology

[0002] In the production and processing of lotus root starch, slicing the lotus root is one of the key steps. The uniformity and integrity of the slices directly affect the efficiency of subsequent drying, grinding, and other processes, as well as the quality of the final lotus root starch product. Currently, most lotus root slicing equipment on the market adopts a traditional rotary cutting structure, which cuts the lotus root pieces by rotating a cutter.

[0003] However, because lotus root itself contains a lot of starch and water, during the cutting process, lotus root slices easily stick to the surface of the cutter, the inner wall of the slicing channel, or other contact parts of the equipment due to the stickiness of the starch and the effect of the water. This sticking problem has many drawbacks: First, it affects slicing efficiency, as the sticky lotus root slices can hinder the feeding and cutting of subsequent lotus root pieces, leading to malfunctions in the equipment; second, it reduces slicing quality, as the sticky lotus root slices may be squeezed and damaged by subsequent cutting actions, resulting in uneven thickness and irregular shapes; third, it increases the difficulty of cleaning the equipment, as the sticky starch and lotus root residue are difficult to remove, and long-term accumulation may also breed bacteria, affecting food hygiene and safety.

[0004] To address the aforementioned sticking problem, existing technologies have employed methods such as increasing cutter lubrication and raising cutting speed, but the results have been unsatisfactory. Increasing lubrication may introduce foreign impurities, affecting the purity of the lotus root starch; increasing cutting speed may result in insufficient cutting of the lotus root pieces and can easily generate significant equipment vibration and noise. Therefore, a slicing device is needed that can fundamentally solve the problem of lotus root slice sticking during cutting without affecting product quality and processing efficiency. Summary of the Invention

[0005] To address the technical shortcomings of existing rotary-cut lotus root slicers, which cause lotus root slices to stick together and affect processing efficiency and quality, this invention provides a rotary-cut lotus root starch anti-sticking slicer. Through a three-channel cold air design, it achieves comprehensive cold air coverage of the feeding area, cutting area, and slice receiving area. The cold air lowers the temperature of the lotus root slices and the contact points with the equipment, reducing starch stickiness and effectively preventing sticking during the lotus root slice cutting process, thus improving slicing quality and processing efficiency.

[0006] According to one aspect of the present invention, a rotary-cut lotus root starch anti-sticking slicing machine is provided, comprising a shell, a partition fixedly connected to the inner side of the shell, a refrigeration module mounted on the partition, a slicing module located on the left side of the partition fixedly connected to the inner side of the shell, a drive motor fixedly installed on the inner bottom wall of the shell, a cold air assembly fixedly connected to the front side wall of the shell, a first air guide hood fixedly connected to the front side of the bottom of the slicing module, and a water collection tank placed on the inner bottom wall of the shell, the water collection tank being located below the first air guide hood; The refrigeration module includes a refrigeration fan and a distributor fixedly installed on the left and right sides of the partition. The refrigeration fan and the distributor are connected through a main air duct. The distributor is connected to the first air guide hood at the bottom of the slicing module through a lower air duct, and is also connected to the interior of the slicing module through a telescopic air duct, and to the cold air assembly through an upper air duct. The refrigeration fan is an industrial-grade scroll-type cold air fan with a rated power of 1.2kW, an adjustable outlet temperature range of -5℃ to 5℃, and an air volume of 800~1200m³ / h, which can meet the refrigeration requirements of continuous processing. The main air duct, lower air duct, and upper air duct all adopt... Made of food-grade 304 stainless steel with an inner diameter of 80mm, the tube is wrapped with 5mm thick insulation cotton to prevent condensation during cold air delivery. The telescopic duct is made of food-grade silicone, which can withstand a temperature range of -20℃ to 80℃, and has a telescopic stroke of 100~200mm to accommodate the installation and adjustment gaps of the slicing module. The cold air generated by the refrigeration fan is divided into three independent channels by a distributor. The distribution ratio can be adjusted by the valve inside the distributor. The default distribution ratio is 40% for the first cold air channel, 30% for the second cold air channel, and 30% for the third cold air channel, forming a three-cold air anti-stick structure.

[0007] Furthermore, the slicing module includes a fixed frame, a slicing disc is inclinedly mounted on the top of the fixed frame, a rotating shaft is movably connected inside the slicing disc, a blade holder is fixedly connected to the outside of the top of the rotating shaft, a cutting blade is fixedly connected to the outside of the blade holder, and the blade holder and the cutting blade are internally connected, an air outlet is opened on the surface of the cutting blade, a limiting sleeve located outside the rotating shaft is fixedly connected to the bottom of the fixed frame, the lower end of the rotating shaft is connected to the drive shaft of the drive motor through a coupling, the telescopic air duct connects the distributor and the blade holder, after the cold air delivered through the telescopic air duct enters the blade holder, it can be directly blown onto the cutting contact surface between the cutting blade and the lotus root piece through the air outlet on the surface of the cutting blade, realizing the anti-sticking function of the first cold air channel and preventing the lotus root slices from sticking to the cutting blade.

[0008] Furthermore, the lower half of the slicing tray is provided with an air guide, the position of which corresponds vertically to the first air guide hood. After the cold air delivered by the distributor through the lower air duct enters the first air guide hood, it is blown through the air guide of the slicing tray to the lotus root slice receiving area inside the slicing tray, forming a second cold air channel to prevent the lotus root slices from sticking to the slicing tray.

[0009] Furthermore, the cold air assembly includes a mounting frame with a second air guide hood fixedly connected to its bottom. The second air guide hood is connected to a distributor via an upper air duct. The cold air delivered by the distributor through the upper air duct enters the second air guide hood to form a third cold air channel, which pre-treats the lotus root pieces in the feeding area with cold air and also reduces the sticking of the lotus root pieces during the slicing process.

[0010] Furthermore, the front of the outer casing has a feeding port and a discharging port. The feeding port is located above the discharging port. A feed pipe is fixedly connected to the feeding port, and a guide cover is fixedly connected to the discharging port. An installation opening is provided on the top of the outer casing, and an adjustment door is movably installed in the installation opening. A control host is also installed on the front of the outer casing. Both its left and right sides are open structures with maintenance doors movably installed. The control host can start and stop the drive motor and the refrigeration fan and adjust their speed. The adjustment door and maintenance door facilitate the debugging and maintenance of the equipment.

[0011] Furthermore, the bottom end of the feed pipe is provided with an opening that is perpendicular to the second air guide hood, ensuring that the cold air from the third cold air channel can be accurately blown onto the lotus root block at the bottom of the feed pipe, pre-cooling the lotus root block before it enters the cutting area, reducing the surface moisture activity, and reducing the possibility of sticking during subsequent cutting.

[0012] Furthermore, the debugging door includes a flip door with an observation window and a handle at the top. The observation window allows for real-time observation of the slicing status inside the equipment, while the handle facilitates the opening and closing of the debugging door.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. This invention constructs three independent cold air channels through a refrigeration module and a distributor, which respectively act on the cutting contact surface, the slicing receiving area, and the feeding pretreatment area, achieving cold air coverage throughout the entire lotus root slice cutting process. The cold air can reduce the temperature of the lotus root pieces and the contact parts with the equipment, reduce the stickiness of the starch, and at the same time reduce the water activity on the surface of the lotus root pieces, fundamentally solving the sticking problem during the lotus root slice cutting process and ensuring smooth slicing.

[0014] 2. Because it effectively avoids the sticking of lotus root slices, the cutter can always maintain a good cutting state, and the cut lotus root slices are of uniform thickness and complete in shape, without being squeezed or broken; at the same time, the absence of sticking obstacles makes the feeding and cutting process smoother, greatly improving slicing efficiency, and is suitable for large-scale lotus root powder processing and production.

[0015] 3. The overall structure of the equipment is compact, and the layout of the cold air assembly and slicing module is scientific and reasonable. The control host can realize centralized control of key components and is easy to operate. The observation window of the debugging door facilitates real-time monitoring of the slicing status. The maintenance doors on the left and right sides and the open structure facilitate the inspection and cleaning of the internal components of the equipment, reducing the maintenance cost of the equipment.

[0016] 4. This invention uses a cold air anti-sticking method, which eliminates the need for any lubricating medium and avoids contamination of lotus root starch products by external impurities. At the same time, it reduces the accumulation of lotus root residue inside the equipment, lowers the risk of bacterial growth, and ensures the hygiene and safety of food processing.

[0017] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of the present invention, nor is it intended to limit the scope of the invention. Other features of the invention will become readily apparent from the following description. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the rotary-cut lotus root starch anti-sticking slicing machine of the present invention; Figure 2 This is a top view of the internal structure of the outer shell of the rotary-cut lotus root starch anti-sticking slicer of the present invention; Figure 3 This is an internal side view of the outer shell structure of the rotary-cut lotus root starch anti-sticking slicer of the present invention.

[0020] Figure 1-3 middle: 1-Outer shell, 2-Feeding port, 3-Feeding pipe, 4-Discharge port, 5-Guide cover, 6-Installation opening, 7-Debugging door, 70-Flip door, 71-Observation window, 72-Handle, 8-Control host, 9-Maintenance door, 10-Partition, 11-Refrigeration module, 110-Refrigeration fan, 111-Diverter, 112-Main air duct, 113-Upper air duct, 114-Lower air duct, 115-Telescopic air duct, 12-Slicing module, 120-Fixing frame, 121-Slicing disc, 122-Rotating shaft, 123-Knife holder, 124-Cutter, 125-Air outlet, 126-Air guide, 127-Limit sleeve, 13-Drive motor, 14-Coupling, 15-First air guide cover, 16-Water collection tank, 17-Cold air assembly, 170-Mounting bracket, 171-Second air guide cover. Detailed Implementation

[0021] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0022] like Figure 1 As shown, a rotary-cut lotus root starch anti-sticking slicer includes a shell 1. A partition 10 is welded and fixed to the inner side of the shell 1. The partition 10 is used to divide the internal space of the equipment and provides an installation carrier for the refrigeration module 11. A refrigeration fan 110 is fixedly installed on the left side of the partition 10 by bolts, and a distributor 111 is fixedly installed on the right side. The refrigeration fan 110 and the distributor 111 are sealed and connected through a main air duct 112. After the refrigeration fan 110 is started, it can generate cold air and deliver it to the distributor 111 through the main air duct 112.

[0023] A slicing module 12 is fixedly connected to the inner side of the outer shell 1 on the left side of the partition 10. The slicing module 12 includes a fixing frame 120, which is fixedly connected to the inner wall of the outer shell 1 by bolts. A slicing disc 121 is installed at an incline on the top of the fixing frame 120. The inclined slicing disc 121 facilitates the sliding of the cut lotus root slices along the disc wall to the discharge port 4. A rotating shaft 122 is movably connected to the inside of the slicing disc 121 through a bearing. A blade holder 123 is fixedly connected to the outside of the top of the rotating shaft 122 through a flat key. Multiple cutting blades 124 are evenly welded to the outside of the blade holder 123. The cutting blades 124 are radially distributed. Hollow channels are provided inside the blade holder 123 and are interconnected. Multiple air outlets 125 are evenly opened near the blade edge of the cutting blade 124.

[0024] The distributor 111 is sealed and connected to the blade holder 123 through the telescopic air duct 115, forming the first cold air channel: the cold air generated by the cooling fan 110 enters the distributor 111 through the main air duct 112, then enters the hollow channel of the blade holder 123 through the telescopic air duct 115, and finally blows out from the air outlet 125 on the surface of the cutter 124, directly acting on the cutting contact surface between the cutter 124 and the lotus root piece, cooling the cutter and the cutting area of ​​the lotus root piece in real time, and preventing the lotus root slices from sticking to the cutter 124.

[0025] The front side of the bottom of the slicing module 12 is fixedly connected to the first air guide shroud 15 by bolts. The lower half of the slicing tray 121 has multiple air guide ports 126. The positions of the air guide ports 126 correspond vertically to the first air guide shroud 15. The distributor 111 is sealed and connected to the first air guide shroud 15 through the lower air pipe 114 to form a second cold air channel. The cold air distributed by the distributor 111 enters the first air guide shroud 15 through the lower air pipe 114, and then blows through the air guide ports 126 of the slicing tray 121 to the inner receiving area of ​​the slicing tray 121, cooling the inner wall of the slicing tray 121 and preventing the cut lotus root slices from sticking to the slicing tray 121. At the same time, it can push the lotus root slices to slide down to the discharge port 4.

[0026] A cold air assembly 17 is fixedly connected to the front side wall of the outer casing 1 by bolts. The cold air assembly 17 includes a mounting bracket 170. A second air guide shroud 171 is welded and fixed to the bottom of the mounting bracket 170. A distributor 111 is sealed and connected to the second air guide shroud 171 through an upper air pipe 113. A feed pipe 3 is fixedly connected to the feeding port 2 on the front of the outer casing 1. The bottom and top of the feed pipe 3 have an opening that is perpendicular to the second air guide shroud 171, forming a third cold air channel. The cold air distributed by the distributor 111 enters the second air guide shroud 171 through the upper air pipe 113, and then blows onto the lotus root pieces before they enter the cutting area through the opening at the bottom of the feed pipe 3, pre-cooling the lotus root pieces, reducing the surface moisture activity, and reducing the possibility of sticking during subsequent cutting.

[0027] A drive motor 13 is bolted to the inner bottom wall of the outer casing 1. The drive motor 13 is a three-phase asynchronous motor with a rated power of 2.2kW and a rated speed of 1440r / min, suitable for cutting lotus root slices of different thicknesses. The lower end of the rotating shaft 122 is connected to the drive shaft of the drive motor 13 via a coupling 14. The coupling 14 is a flexible coupling, and the elastic body is made of polyurethane, which is wear-resistant and has excellent buffering performance. After the drive motor 13 starts, it can drive the rotating shaft 122, the knife holder 123 and the cutter 124 to rotate at high speed through the coupling 14, so as to realize the rotary cutting action of the lotus root slices. A water collection tank 16 is placed on the inner bottom wall of the outer casing 1. The water collection tank 16 is made of food-grade PP material and has a volume of 20L. The bottom of the tank is equipped with a drain outlet and a plug for regular drainage of sewage. The water collection tank 16 is located below the first air guide shroud 15, and the upper edge of the tank is 100mm higher than the inner bottom wall to prevent sewage from overflowing. It is used to collect lotus root juice and condensate generated during the slicing process to avoid water accumulation inside the equipment.

[0028] A guide cover 5 is fixedly connected to the discharge port 4 on the front of the outer casing 1, through which the cut lotus root slices can be discharged from the equipment; an adjustment door 7 is installed at the installation opening 6 on the top of the outer casing 1 via a hinge, the adjustment door 7 includes a flip door 70, the flip door 70 is fitted with a transparent observation window 71, and a handle 72 is provided on the top, through which the slicing status inside the equipment can be observed in real time, and the handle 72 facilitates the opening and closing of the adjustment door 7; the control host 8 installed on the front of the outer casing 1 is electrically connected to the drive motor 13 and the cooling fan 110, which can realize the start and stop of both and the speed adjustment; maintenance doors 9 are movably installed on the open structure on the left and right sides of the outer casing 1, opening the maintenance doors 9 allows for the inspection and cleaning of components such as the slicing module 12 and the cooling module 11 inside the equipment.

[0029] The working process of this embodiment is as follows: First, the cooling fan 110 is started by the control host 8. The cold air generated by the cooling fan enters the distributor 111 through the main air duct 112. After being split, it is delivered to the corresponding area through three cold air channels. Then, the drive motor 13 is started to drive the cutter 124 to rotate at high speed. The lotus root pieces to be cut are put into the feed pipe 3. Under the action of gravity, the lotus root pieces enter the slicing tray 121. Before entering the cutting area, they are pre-cooled by the cold air in the third cold air channel. The high-speed rotating cutter 124 spins the lotus root pieces. During the cutting process, the cold air in the first cold air channel blows directly onto the cutting contact surface to prevent the lotus root slices from sticking to the cutter. The cut lotus root slices fall onto the slicing tray 121. The cold air in the second cold air channel cools the slicing tray and pushes the lotus root slices to slide down the discharge port 4. Finally, they are discharged through the guide cover 5. The lotus root juice and condensate generated during the slicing process fall into the water collection tank 16 and can be cleaned periodically.

[0030] All of the electrical devices mentioned above are connected by wires, and the models of the electrical devices are all commonly used models in this field.

[0031] The specific embodiments described above do not constitute a limitation on the scope of protection of this invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A rotary-cut lotus root starch anti-sticking slicer, comprising a shell (1), characterized in that: A partition (10) is fixedly connected to the inner side of the outer shell (1). A refrigeration module (11) is installed on the partition (10). A slicing module (12) located on the left side of the partition (10) is fixedly connected to the inner side of the outer shell (1). A drive motor (13) is fixedly installed on the inner bottom wall of the outer shell (1). A cold air assembly (17) is fixedly connected to the front side wall of the outer shell (1). A first air guide shroud (15) is fixedly connected to the front side of the bottom of the slicing module (12). A water collection tank (16) is placed on the inner bottom wall of the outer shell (1). The water collection tank (16) is located below the first air guide shroud (15). The refrigeration module (11) includes a refrigeration fan (110) and a distributor (111) fixedly installed on the left and right sides of the partition (10). The refrigeration fan (110) and the distributor (111) are connected through a main air duct (112). The distributor (111) is connected to the first air guide hood (15) at the bottom of the slicing module (12) through a lower air duct (114), and is connected to the inside of the slicing module (12) through a telescopic air duct (115). It is also connected to the cold air assembly (17) through an upper air duct (113).

2. The rotary-cut lotus root starch anti-sticking slicer according to claim 1, characterized in that, The slicing module (12) includes a fixed frame (120), a slicing disk (121) is installed obliquely on the top of the fixed frame (120), a rotating shaft (122) is movably connected inside the slicing disk (121), a knife holder (123) is fixedly connected to the outside of the top of the rotating shaft (122), a cutter (124) is fixedly connected to the outside of the knife holder (123), and the knife holder (123) and the cutter (124) are internally connected. An air outlet (125) is opened on the surface of the cutter (124). A limiting sleeve (127) located outside the rotating shaft (122) is fixedly connected to the bottom of the fixed frame (120). The lower end of the rotating shaft (122) is connected to the drive shaft of the drive motor (13) through a coupling (14). The telescopic air duct (115) connects the distributor (111) and the knife holder (123).

3. The rotary-cut lotus root starch anti-sticking slicer according to claim 2, characterized in that, The lower half of the slicing disc (121) is provided with an air guide (126), and the position of the air guide (126) corresponds vertically to the first air guide shroud (15).

4. The rotary-cut lotus root starch anti-sticking slicer according to claim 1, characterized in that, The cooling air assembly (17) includes a mounting bracket (170), the bottom of which is fixedly connected to a second air guide hood (171), which is connected to a splitter (111) through an upper air duct (113).

5. The rotary-cut lotus root starch anti-sticking slicer according to any one of claims 1 to 4, characterized in that, The outer shell (1) has a feeding port (2) and a discharging port (4) on the front. The feeding port (2) is located above the discharging port (4). A feeding pipe (3) is fixedly connected to the feeding port (2). A guide cover (5) is fixedly connected to the discharging port (4). An installation opening (6) is opened on the top of the outer shell (1). An debugging door (7) is movably installed at the installation opening (6). A control host (8) is also installed on the front of the outer shell (1). Both its left and right sides are open structures and are movably installed with maintenance doors (9).

6. The rotary-cut lotus root starch anti-sticking slicer according to claim 5, characterized in that, The bottom end of the feed pipe (3) is provided with an opening, which is perpendicular to the second air guide shroud (171).

7. The rotary-cut lotus root starch anti-sticking slicer according to claim 5, characterized in that, The debugging door (7) includes a flip door (70), which is fitted with an observation window (71) and a handle (72) at the top.