Potato peeling and cleaning machine

Abstract

The utility model discloses a potato peeling and cleaning machine which comprises a machine frame, a conveying assembly, a high-pressure washing assembly and a peeling assembly. The conveying assembly is matched with a longitudinal brush through a spiral blade to realize uniform rolling and conveying of potatoes; the high-pressure washing assembly tangentially sprays water flow through symmetrically-distributed high-pressure water jet cutters, and dynamic friction peeling is formed by combining a rotary brush of the peeling assembly and a notch gap in the bottom of the conveying assembly. Cooperative operation of skin softening, impurity stripping and efficient peeling is achieved through water jet cutter dip angle adjustment, brush spacing adaptation and intelligent speed adjustment of a variable frequency motor. The device obviously improves the peeling uniformity, reduces the surface damage of potatoes, effectively reduces the consumption of water resources, and has the characteristics of convenience in maintenance and stability in operation.

Description

Technical Field

[0001] This utility model relates to the field of vegetable cleaning equipment, and in particular to a potato peeling and cleaning machine. Background Technology

[0002] Potatoes, a widely consumed root vegetable globally, require meticulous cleaning and peeling before processing for food hygiene and efficiency. Traditional potato peeling and cleaning methods rely heavily on manual labor or semi-mechanized equipment, resulting in the following technical drawbacks: 1. Low efficiency: Manual peeling is labor-intensive, and existing machinery (such as friction rollers) often results in uneven peeling due to insufficient potato tumbling, requiring repeated processing. 2. High damage rate: Direct contact with hard brushes or blades can easily scratch the potato surface, affecting the quality of the finished product; some equipment suffers from potato breakage rates exceeding 15% due to improper pressure control. 3. Water waste: Conventional high-pressure spraying requires a continuous high-flow-rate water supply, and dead spots in the rinsing process leave residual wastewater, resulting in water consumption of 30-50 L / kg per unit of potato. 4. Poor adaptability: Existing equipment is difficult to adjust parameters to accommodate different potato varieties (such as variations in skin thickness), and maintenance and disassembly are complex, leading to long downtime due to malfunctions.

[0003] Based on the above problems, there is an urgent need for an automated device that integrates efficient conveying, precise peeling, and water-saving rinsing to improve potato processing quality and resource utilization. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a potato peeling and washing machine.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] This utility model discloses a potato peeling and washing machine, comprising a frame, a conveying assembly fixed on the frame, a high-pressure rinsing assembly, and a peeling assembly. The conveying assembly includes a housing, a spiral shaft coaxially disposed within the housing, and a first motor driving the spiral shaft. Spiral blades are fixed on the spiral shaft, and longitudinal brushes are vertically fixed in the gaps between the spiral blades. The housing has an inlet and an observation window at the top, an outlet on the side, and several peeling slots at the bottom. The high-pressure rinsing assembly includes a water jet fixing frame fixed to the top of the housing, multiple high-pressure water jets symmetrically distributed on both sides of the spiral shaft along the water jet fixing frame, and a water collection tank disposed below the peeling assembly. The peeling assembly includes a peeling roller corresponding to the peeling slots at the bottom of the housing, axial brushes distributed along the circumference of the roller, a second motor driving the roller, and baffles fixed to both sides of the roller.

[0007] As a preferred embodiment of this utility model, the longitudinal brushes are distributed in an equidistant array between the spiral blades at a spacing of 100-150mm, and the brush hardness is Shore A70-90.

[0008] As a preferred technical solution of this utility model, the spray angle of the high-pressure water jet is adjusted from 30° to 60° by a universal adjustment mechanism, and the water jet spray direction is directed towards the tangent direction of the inner wall of the outer shell.

[0009] As a preferred technical solution of this utility model, the side of the outer shell is provided with a quick-release buckle, which is located between the discharge port and the inlet port and is used to quickly disassemble the upper part of the outer shell.

[0010] As a preferred embodiment of this utility model, the distance between the axial brush of the peeling roller and the peeling groove at the bottom of the outer shell is 5-10mm, and the rotation speed of the peeling roller is 1.2-1.5 times the rotation speed of the spiral shaft.

[0011] In a preferred embodiment of this invention, the second motor is a variable frequency motor and is linked to the controller via a torque sensor. The torque sensor is coaxially connected to the transmission shaft via a flange coupling, and detects resistance in real time and feeds it back to the controller to adjust the speed.

[0012] As a preferred embodiment of this utility model, the observation window is embedded with an openable transparent acrylic plate, and a rubber sealing ring is provided on the inner side of the window cover.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. Improved peeling efficiency and uniformity: The longitudinal brushes (100-150mm spacing, Shore A 70-90 hardness) between the spiral blades push the potatoes to tumble, combined with the tangential scouring of the high-pressure water jet (30°-60° adjustable angle), achieving skin softening and impurity removal, increasing peeling efficiency by more than 40% and uniformity to 95%; the axial brushes of the peeling roller and the groove gap (5-10mm) work together with a speed difference of 1.2-1.5 times to create dynamic friction, resulting in a skin removal rate >90% and a damage rate <5%;

[0015] 2. Optimized water saving and cleaning effect: High-pressure water jet directional spray (pointing to the tangent of the inner wall of the outer shell) forms a vortex, covering the entire spiral conveyor, reducing the dead corners of rinsing, and reducing the unit water consumption to 10-15L / kg;

[0016] 3. Intelligent control and maintenance convenience: The variable frequency motor automatically adjusts the drum speed by feeding back the load resistance in real time through the torque sensor (such as reducing the speed by 10%-20% when the resistance is high) to prevent overload and save 15%-25% of energy; the quick-release buckle and the openable observation window (acrylic plate + sealing ring) simplify equipment cleaning and troubleshooting, reducing maintenance time by 60%. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

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

[0019] Figure 2 This is the front view of this utility model;

[0020] Figure 3 This is a cross-sectional structural schematic diagram of the present invention;

[0021] Figure 4 This is a top view of the present invention;

[0022] Figure 5 This is a schematic diagram of the peeling roller in this utility model;

[0023] In the diagram: 1. Frame; 2. Conveying assembly; 3. High-pressure rinsing assembly; 4. Peeling assembly; 21. Housing; 22. Spiral shaft; 23. First motor; 24. Spiral blades; 25. Longitudinal brush; 26. Feed inlet; 27. Discharge outlet; 28. Observation window; 29. ​​Peeling groove; 30. Quick-release buckle; 31. Water jet fixing bracket; 32. High-pressure water jet; 33. Water collection trough; 41. Peeling roller; 42. Axial brush; 43. Second motor; 44. Water baffle; 281. Transparent acrylic plate; 321. Universal adjustment mechanism; 431. Torque sensor; 432. Controller; 433. Drive shaft; 434. Flange coupling. Detailed Implementation

[0024] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0025] In the attached diagram, all identical reference numerals refer to the same components.

[0026] like Figure 1-5As shown, this utility model provides a potato peeling and washing machine, including a frame 1, a conveying assembly 2, a high-pressure rinsing assembly 3, and a peeling assembly 4. The frame 1 is a rectangular welded frame, the conveying assembly 2 is horizontally fixed in the middle of the frame 1, the high-pressure rinsing assembly 3 is installed on the top of the conveying assembly 2, and the peeling assembly 4 is located directly below the conveying assembly 2 and connected to the frame 1 by bolts.

[0027] Conveying assembly 2 includes a housing 21, a spiral shaft 22, a first motor 23, spiral blades 24, a longitudinal brush 25, a feed inlet 26, a discharge outlet 27, an observation window 28, and a peeling groove 29.

[0028] The outer shell 21 is made of 304 stainless steel. The top has a feed inlet 26 and an observation window 28. The feed inlet 26 has a funnel-shaped structure, and the observation window 28 has a transparent acrylic plate embedded in it for real-time monitoring. The side has a discharge outlet 27, and the bottom has strip-shaped peeling grooves 29 with a width of 8mm evenly distributed.

[0029] Spiral shaft 22: driven by the first motor 23, with an adjustable speed range of 20-50 rpm. Spiral blades 24 are welded to the surface of the shaft. The pitch of the spiral blades 24 is 200 mm. Vertical brushes 25 (Shore A85 hardness) with a spacing of 120 mm are welded vertically in the gap between the blades.

[0030] First motor 23: It is coaxially connected to the screw shaft 22 via a coupling, with a power of 2.2kW, and can be adjusted for forward and reverse rotation to adapt to different conveying directions.

[0031] The high-pressure flushing assembly 3 includes a water jet holder 31, a high-pressure water jet 32, and a water collection tank 33.

[0032] Water jet mounting bracket 31: It is an inverted U-shaped bracket that spans the top of the outer shell 21. Six sets of high-pressure water jets 32 are symmetrically installed on both sides of it. Each set of water jets 32 can adjust the spray angle to 45° through a universal adjustment mechanism. The water jet spray direction is directed towards the tangent of the inner wall of the outer shell 21 to form a vortex.

[0033] High-pressure water jet 32: The working pressure is 5-8MPa, the diameter of the high-pressure water jet nozzle is 1.5mm, the water source is supplied by an external water pump, and the single-row flow rate is 10L / min.

[0034] Water collection tank 33: It is inclined and located below the peeling component 4. A drain valve is provided at the bottom of the tank for recycling and filtering the rinsing wastewater for reuse.

[0035] Peeling assembly 4 includes peeling roller 41, axial brush 42, second motor 43, and baffle plate 44.

[0036] Peeling roller 41: 300mm in diameter, with axially distributed brushes 42 (Shore A75 hardness) on the surface. The brushes 42 maintain an 8mm gap with the peeling groove 29 at the bottom of the outer shell 21. The roller is driven by a second motor 43, with a rotation speed of 1.3 times that of the spiral shaft 22 (i.e., 26-65 rpm).

[0037] The second motor 43 is a 5.5kW variable frequency motor, which is connected to the drive shaft via a flange coupling. A torque sensor 431 is coaxially mounted on the drive shaft to detect the roller resistance in real time and feed it back to the PLC controller 432 to adjust the speed.

[0038] Water baffle 44: It is an arc-shaped stainless steel plate, symmetrically fixed on both sides of the roller 41 to prevent sewage from splashing to the outside of the frame 1.

[0039] The method of using this utility model is as follows:

[0040] 1. Feeding and conveying: Potatoes enter the outer shell 21 through the feed inlet 26, the spiral shaft 22 drives the spiral blades 24 to rotate, and the longitudinal brush 25 pushes the potatoes to roll and convey them forward;

[0041] 2. High-pressure rinsing: The high-pressure water jet 32 ​​sprays water at a 45° angle to wash away the mud and sand on the surface of the potatoes and soften the skin. The wastewater flows into the collection tank 33 through the peeling groove 29.

[0042] 3. Peeling process: During the conveying process, the potatoes come into contact with the axial brush 42 of the peeling roller 41, and the skin is removed by friction through the speed difference. The peeled potatoes are discharged through the discharge port 27.

[0043] 4. Intelligent control: When the torque sensor 431 detects that the resistance of the roller 41 exceeds the limit, the PLC controller automatically reduces the speed of the second motor 43 by 10% to prevent overload shutdown.

[0044] Tests were conducted on 500 kg of potatoes: Peeling efficiency: processing time ≤ 30 minutes, peeling integrity rate 93%, damage rate 4.2%; Water saving index: water consumption 12L / kg, saving 60% of water compared to traditional equipment; Energy consumption: average power 4.8kW·h, energy saving 18%.

[0045] This utility model is a potato peeling and washing machine. Through the coordinated design of the spiral conveyor assembly, high-pressure water jet and peeling roller, combined with the parameters of 120mm longitudinal brush spacing, 45° tangential water jet and 1.3 times speed difference of the roller, it can achieve efficient potato peeling (93% integrity rate) and water-saving washing (12L / kg), with a damage rate of less than 5%, and the intelligent speed regulation system ensures the stability of operation.

[0046] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A potato peeling and washing machine characterized by comprising: The utility model relates to a high -efficient potato peeling machine, including frame (1), fixed on the conveying assembly (2) of frame (1), high pressure flush subassembly (3) and peeling assembly (4), the conveying assembly (2) includes shell (21), coaxial setting in the spiral rotating shaft (22) of shell (21) and drive the first motor (23) of spiral rotating shaft (22), the spiral blade (24) is fixed with spiral rotating shaft (22), the clearance of spiral blade (24) is vertically fixed with longitudinal brush (25), the top of shell (21) is equipped with feeding port (26) and observation window (28), and the side is equipped with discharge port (27), and the bottom is provided with a plurality of peeling slot (29), the high pressure flush subassembly (3) includes the water jet fixed frame (31) of being fixed to the top of shell (21), a plurality of high pressure water jet (32) along water jet fixed frame (31) is distributed in the both sides of spiral rotating shaft (22) and is set in the water collecting tank (33) below peeling assembly (4), the peeling assembly (4) includes the peeling cylinder (41) with the peeling slot (29) position of shell (21) bottom correspondence, the axial brush (42) of distribution along the circumference of cylinder, the second motor (43) of driving cylinder and the water baffle (44) fixed in the both sides of cylinder.

2. A potato peeling and cleaning machine according to claim 1, characterized in that The longitudinal brush (25) is equidistantly arrayed between the spiral blades (24) at a spacing of 100-150 mm, and the brush hardness is Shore A 70-90.

3. A potato peeling and cleaning machine according to claim 1, wherein The spray angle of the high pressure water jet (32) is adjusted by a universal adjusting mechanism (321) to an inclination angle of 30°-60°, and the water jet spray direction is directed to the tangent direction of the inner wall of the shell (21).

4. The potato peeling and washing machine according to claim 1, wherein The shell (21) is provided with a quick release buckle (30) on the side, which is located between the discharge port (27) and the feeding port (26) for quickly disassembling the upper half of the shell (21).

5. The potato peeling and washing machine according to claim 1, wherein The axial brush (42) of the peeling cylinder (41) is spaced apart from the peeling slot (29) on the bottom of the shell (21) by 5-10 mm, and the rotating speed of the peeling cylinder (41) is 1.2-1.5 times that of the spiral rotating shaft (22).

6. A potato peeling and washing machine according to claim 1, wherein The second motor (43) is a variable frequency motor, and is linked with a controller (432) through a torque sensor (431). The torque sensor (431) is coaxially connected with a transmission shaft (433) through a flange coupling (434), and detects the resistance in real time and feeds back to the controller (432) to adjust the rotating speed.

7. A potato peeling and washing machine according to claim 1, wherein The observation window (28) is inlaid with a transparent acrylic plate (281) that can be opened, and a rubber sealing ring is arranged on the inner side of the window cover.

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