Konjac peeling device and method

Abstract

The invention discloses a kind of konjak peeling device and method, comprise steam peeling device and mechanical peeling device, the material outlet of steam peeling device is just opposite the material inlet of mechanical peeling device, steam peeling device comprises pressure tank main body, pressure tank main body is tilted and fixed on support, the sidewall of pressure tank main body is provided with steam port, the opening of pressure tank main body upper end is movably connected with the feeding end cover mechanism of inner opening type, the opening of pressure tank main body lower end is movably connected with the unloading end cover mechanism of outer opening type, agitating mechanism is provided in pressure tank main body, mechanical peeling device comprises frame, frame inside is provided with feeding chute, spiral blade for conveying material and several brush rollers for peeling are rotatably installed in feeding chute, brush roller is evenly arranged in arc shape below spiral blade.Konjak peeling device and method of the present invention are applicable to the konjak peeling that individual difference is larger, do not need to be graded before processing, simplify konjak peeling processing step, improve processing efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of intelligent devices, in particular to a konjac peeling device. In addition, the present invention also includes a method for peeling konjac by using the konjac peeling device. Background Art

[0002] With the vigorous development of the food processing industry, various values ​​of fruits and vegetables such as chemical, medical, and health care have been discovered. How to process food deeply to maximize its value has become increasingly important to society. Peeling is an important step in fruit and vegetable processing. Many subsequent deep processing processes have high requirements for the peeling rate of fruits and vegetables. The common methods of peeling fruits and vegetables are as follows:

[0003] Manual peeling: Use special knives to peel, plan, etc., with a high peeling rate and less pulp loss, but the overall efficiency is low, the yield is limited, and some fruit and vegetable juices are corrosive to the skin. Long-term work will cause greater damage to the skin.

[0004] Mechanical peeling: Peeling is done by rotary cutting, brushing with brush rollers, or friction. It is mainly used for conventional fruits and vegetables. However, it is difficult to peel fruits and vegetables with irregular shapes or many concave surfaces, resulting in a large loss of pulp and serious waste of raw materials.

[0005] Chemical peeling: Pectin has a fixing effect on the skin of fruits and vegetables. The principle of chemical peeling is to use chemical solutions to decompose pectin to achieve the peeling effect. Caustic soda is commonly used, and it takes some experiments to determine the concentration of the chemical solution and the treatment time. After treatment, the fruits and vegetables need to be rinsed with plenty of clean water until the surface is free of alkaline smell.

[0006] Thermal peeling: Fruits and vegetables are subjected to a short, high-temperature treatment in a medium such as steam or hot water to de-gelatinize the pectin between the flesh and the peel. Subsequent processing removes any remaining peel adhering to the surface. This method is suitable for fruits and vegetables with irregular shapes or those at a high degree of maturity. This peeling method is highly efficient, unaffected by the shape of the fruit or vegetable, and results in minimal pulp loss during processing.

[0007] Enzymatic peeling: Use pectinase to decompose the pectin between the pulp and the skin of fruits and vegetables to achieve the peeling effect. Since pectinase will be inactivated when it exceeds a certain temperature and pH range, the working environment should be strictly controlled.

[0008] Frozen peeling: The fruits and vegetables are placed in a freezing device at low temperature until the surface is slightly frozen, then thawed. The pectin loses its gelling properties and the peel is separated from the flesh. This method of peeling is effective but the cost is relatively high.

[0009] Konjac is the root vegetable with common surface irregular shape, its fruit is oblate, and surface is uneven, because its growth environment has particularity and deep-processed product value-added height, research finds, the heteropolysaccharide konjac glucomannan (KGM) extracted from konjac tuber has pharmacological action, because KGM has the characteristics such as water absorption, edibility, cohesiveness, low caloric value, in food processing, fruits and vegetables are kept fresh, each field such as health product, all has good application prospect, gradually caused the extensive concern of people from all walks of life.What domestic konjac peeling adopts at present is the mode that manual peeling and mechanical peeling combine, namely first konjac is put into mechanical peeling machine and processed a few minutes, after that, the epidermis that the concave eye place is not processed clean is cleaned by the worker holding scraper.Because the mucus after konjac peeling has corrosiveness to people's skin, so the worker needs to wear gloves and mask work. Moreover, the surface of konjac pulp will turn brown after a few minutes of contact with air, affecting the subsequent processing output. Therefore, how to improve the peeling efficiency of the konjac peeling machine and reduce the time that the konjac pulp is exposed to the air is an urgent problem to be solved in the fruit and vegetable peeling device. Summary of the Invention

[0010] The invention provides a konjac peeling device and a konjac peeling method, so as to solve the technical problems that the existing fruit and vegetable peeling device is not suitable for konjac with irregular surface shape, resulting in low peeling efficiency and long peeling time, which makes the surface of konjac pulp easy to brown.

[0011] According to one aspect of the present invention, a konjac peeling device is provided, comprising a steam peeling device and a mechanical peeling device, wherein the material outlet of the steam peeling device is arranged opposite to the material inlet of the mechanical peeling device so that the konjac peeled by the steam falls directly into the mechanical peeling device, the steam peeling device comprises a pressure tank body, the upper end of the pressure tank body is provided with an opening for feeding, the lower end of the pressure tank body is provided with an opening for discharging, the pressure tank body is tilted and fixed on a bracket to facilitate the discharge of condensed water, a steam port for filling and / or discharging steam is provided on the side wall of the pressure tank body, the feed port of the pressure tank body is movably connected with an inwardly opening feeding end cover mechanism, the discharge port of the pressure tank body is movably connected with an outwardly opening unloading end cover mechanism, a stirring mechanism is arranged inside the pressure tank body, the mechanical peeling device comprises a frame, a feeding trough is provided inside the frame, a spiral blade for conveying material and a plurality of brush rollers for peeling are rotatably installed in the feeding trough, and the brush rollers are evenly arranged in an arc shape below the spiral blade.

[0012] Furthermore, an upper hopper is provided at the feed port of the pressure tank body. The pressure tank body is in a frustum shape with a small top and a large bottom, so as to mitigate the impact of konjac when it falls into the interior of the pressure tank body.

[0013] Furthermore, the stirring mechanism is arranged at the bottom of the pressure tank body, and the stirring mechanism includes a stirring shaft, a stirring paddle connected to the stirring shaft, and a driving component for driving the stirring shaft to rotate. The stirring paddle is L-shaped, and the horizontal side of the stirring paddle is fixedly connected to the stirring shaft.

[0014] Furthermore, the feeding end cover mechanism includes an upper end cover, an arc-shaped connecting rod mechanism and a first driving mechanism, one end of the arc-shaped connecting rod mechanism is connected to the upper end cover, and the other end of the arc-shaped connecting rod mechanism is hinged to the side wall of the pressure tank body, and the first driving mechanism is hinged on the side wall of the pressure tank body. The first driving mechanism is connected to the arc-shaped connecting rod mechanism, and the arc-shaped connecting rod mechanism is driven to rotate around the shaft seat by the first driving mechanism, thereby driving and controlling the opening and closing of the upper end cover.

[0015] Furthermore, the discharge port of the pressure tank body is provided with a vertically arranged discharge hopper, and the discharge end cover mechanism is arranged in the discharge hopper. The discharge end cover mechanism includes a lower end cover, a connecting rod mechanism and a second driving mechanism. One side of the lower end cover is hinged to the lower end surface of the pressure tank body, and the connecting rod mechanism and the second driving mechanism are both hinged between the discharge hopper and the lower end cover. The connecting rod mechanism includes a first connecting rod and a second connecting rod hinged to each other. The movement of the connecting rod mechanism is driven and controlled by the telescopic movement of the piston rod of the second driving mechanism, thereby driving and controlling the opening and closing of the lower end cover.

[0016] Furthermore, a first step portion is provided on the edge of the lower end cover, and a second step portion is provided at the position where the bottom surface of the pressure tank body contacts the lower end cover. The first step portion and the second step portion match each other, and an elastic sealing material layer is provided on the first step portion and / or the second step portion.

[0017] Furthermore, the middle parts of the first connecting rod and the second connecting rod are made of Q235 material, and the two ends of the first connecting rod and the second connecting rod are made of high-performance carbon fiber as hinge joints.

[0018] Furthermore, the brush roller is driven by gear transmission, chain transmission or synchronous belt transmission to achieve synchronous rotation of the brush roller.

[0019] Furthermore, the brush roller adopts chain transmission, the brush shaft of each brush roller is circumferentially positioned with the corresponding sprocket, a chain is connected between two adjacent sprockets, and the brush shaft of one of the brush rollers is connected to the motor through a coupling.

[0020] According to another aspect of the present invention, a konjak peeling method is also provided, which adopts above-mentioned konjak peeling device, comprising the following steps:

[0021] S1, prepare konjak raw material, clean and remove the earth foreign matter on described konjak surface;

[0022] S2, by measuring funnel, described konjaku is added described steam peeling device and is heat treated, the operating pressure of described steam peeling device is 0.8~1.5Mpa;

[0023] S3, after described konjaku steam treatment is completed, discharge steam quickly, described konjaku epidermis is carried out to " steam explosion " process, open lower end cover, make described konjaku fall in described mechanical peeling device;

[0024] S4, described konjac is carried out mechanical peeling, remove the useless skin that adheres to described konjac surface;

[0025] S5. Collect the products and transport them to the next level of processing equipment.

[0026] The present invention has the following beneficial effects:

[0027] The konjac peeling device of the present invention comprises a steam peeling device and a mechanical peeling device, wherein the steam peeling device comprises a pressure tank main body, a feeding end cover mechanism and a discharging end cover mechanism, wherein the feeding end cover mechanism is an inward-opening structure, and when steam is introduced, the upper end cover is more closely attached to the feed end opening under pressure, thereby having an automatic sealing effect; the discharging end cover mechanism is an outward-opening structure, and the lower end port does not collide with a stirring mechanism when the lower end port is opened for discharging; the pressure tank of the steam peeling device is fixed, and the electronic control cost is low, and steam pipelines and the like are all conventionally connected, the volume of the pressure tank can be greatly increased, and a condensed water passage can be provided, thereby reducing the degree of steaming in the konjac processing process and shrinking the ripening circle; the mechanical peeling device adopts a spiral blade plus a brush roller, and the brush roller is evenly arranged in an arc below the spiral blade, and the conveying gap is small, so that the peeling of konjac with large individual differences (konjac size range of 15-25 cm) can be applied, and no classification is required before konjac processing, thereby simplifying the konjac peeling processing step and improving processing efficiency.

[0028] The konjac peeling method of the present invention adopts steam peeling first and then mechanical peeling, and has little pulp loss during the peeling process, effectively reducing material waste in the peeling process, achieving high peeling quality, and effectively removing the skin at the concave parts of the konjac surface. The peeling principle is physical peeling, no chemical waste liquid is discharged, and the environment is not polluted. A ripening ring with a thickness of 1 to 2 mm is generated on the treated konjac surface, and enzymes on the surface of the ripened pulp are inactivated, thereby hindering the precipitation of KGM in the ripening ring and prolonging the time for the konjac to be exposed to the air without browning after peeling. After steam peeling, the konjac directly falls into a mechanical peeling device without being transported by a spiral elevator, thereby reducing the time the konjac stays in the equipment, improving the processing efficiency, and effectively preventing the konjac pulp from browning.

[0029] In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0031] Figure 1 2. It is a schematic diagram of the spatial arrangement of a konjac peeling device according to a preferred embodiment of the present invention;

[0032] Figure 2 2. It is a structural diagram of a steam peeling device of a konjac peeling device according to a preferred embodiment of the present invention;

[0033] Figure 3 yes Figure 2 A schematic structural diagram of the steam peeling device from another perspective;

[0034] Figure 4 yes Figure 2 An enlarged schematic diagram of the middle and bottom material end cover mechanism;

[0035] Figure 5 It is another structural schematic diagram of the steam peeling device of the konjac peeling device of the preferred embodiment of the present invention;

[0036] Figure 6 It is a structural diagram of a mechanical peeling device of a konjac peeling device of a preferred embodiment of the present invention;

[0037] Figure 7 yes Figure 6 AA sectional view of the mechanical peeling device.

[0038] Legend:

[0039] 1. Steam peeling device; 10. Pressure tank body; 11. Steam port; 12. Loading end cover mechanism; 121. Upper end cover; 122. Arc connecting rod mechanism; 123. First driving mechanism; 1231. Hydraulic cylinder; 1232. Piston rod; 13. Unloading end cover mechanism; 131. Lower end cover; 1311. First step; 1312. Second step; 132. Connecting rod mechanism; 1321. First connecting rod; 1322. Second connecting rod Connecting rod; 133, second driving mechanism; 1331, hydraulic cylinder; 1332, piston rod; 14, stirring mechanism; 141, stirring shaft; 142, stirring paddle; 143, driving assembly; 15, upper hopper; 16, lower hopper; 17, mounting assembly; 18, metering funnel; 2, mechanical peeling device; 20, frame; 21, spiral blade; 22, brush roller; 23, sprocket; 24, chain; 25, coupling; 26, motor. DETAILED DESCRIPTION

[0040] The embodiments of the present invention are described in detail below with reference to the accompanying drawings. However, the present invention can be implemented in many different ways as defined and covered below.

[0041] like Figures 1 to 7 As shown, the konjac peeling device of the present embodiment comprises a steam peeling device 1 and a mechanical peeling device 2, the material outlet of the steam peeling device 1 is arranged opposite to the material inlet of the mechanical peeling device 2, so that the konjac peeled by steam falls directly into the mechanical peeling device 2, the steam peeling device 1 comprises a pressure tank body 10, the upper end of the pressure tank body 10 is provided with an opening for feeding, the lower end of the pressure tank body 10 is provided with an opening for discharging, the pressure tank body 10 is tilted and fixed on a bracket to facilitate the discharge of condensed water, and a side wall of the pressure tank body 10 is provided with a pressure tank body for discharging. A steam port 11 for filling and / or discharging steam, the feed port of the pressure tank body 10 is movably connected with an inward-opening feeding end cover mechanism 12, the discharge port of the pressure tank body 10 is movably connected with an outward-opening unloading end cover mechanism 13, a stirring mechanism 14 is arranged inside the pressure tank body 10, and the mechanical peeling device 2 includes a frame 20, a feeding trough is provided inside the frame 20, and a spiral blade 21 for conveying materials and a plurality of brush rollers 22 for peeling are rotatably installed in the feeding trough, and the brush rollers 22 are evenly arranged in an arc shape below the spiral blade 21.

[0042] The edible part fruit of konjaku is oblate, and the surface is uneven, and traditional machinery peeling is difficult to it being comparatively thoroughly peeled, the konjaku peeling device of the present embodiment comprises steam peeling device and mechanical peeling device, the steam peeling device is to adopt thermal peeling, and pulp loss is few in the processing process, effectively reduced the waste of materials in the peeling process, the peeling quality is high, the skin of the depressed position on the konjaku surface also can effectively be removed, and the peeling principle is a physical peeling, and is discharged without chemical waste liquid, and does not pollute the environment; Processed konjaku surface can produce the ripening circle of 1~2mm thickness, and ripening pulp surface enzyme inactivation has hindered the separation of KGM in the ripening circle, and can prolong the time that konjaku is exposed to the air after peeling and browning does not occur; The material outlet of steam peeling device is laid out just to the material inlet of mechanical peeling device, and the konjaku after treatment directly falls in the mechanical peeling device from below the steam peeling device, need not to carry material by spiral elevator, reduced the time that material stops in equipment, improved processing efficiency, effectively avoided the konjaku pulp to take place browning.

[0043] The steam peeling device includes a pressure tank body, a loading end cover mechanism and a unloading end cover mechanism. The loading end cover mechanism is an inward-opening structure. When steam is introduced, the upper end cover is closer to the feed end opening under the action of pressure, which has an automatic sealing effect; the unloading end cover mechanism is an outward-opening structure. This is because a stirring mechanism is provided inside the pressure tank body, and the stopping position of the stirring mechanism is uncertain. If the lower end cover is designed to open inward, it may cause the lower end cover to collide with the stirring mechanism. Therefore, the unloading end cover mechanism is set to an outward-opening type.

[0044] The konjak peeling device of the present embodiment, the pressure tank of the steam peeling device is fixed, and electronic control cost is lower, and steam pipeline etc. are all conventional connections, and pressure tank volume can be greatly increased, and production capacity can reach more than 1.5t / h, and condensed water passage can be set, reduce the boiling degree in the konjak processing procedure, dwindle ripening circle; Mechanical peeling device adopts spiral blade to add brush roller, and brush roller is evenly arranged in the below of spiral blade in arc shape, and conveying gap is less, can be applicable to the konjak peeling that individual difference is larger (konjac size range 15~25cm), and konjac does not need to be classified before processing, simplifies the konjac peeling processing step, and improves processing efficiency.

[0045] In the present embodiment, the steam port position is provided with a safety valve and / or a pressure relief valve, and the operating pressure of the pressure tank body is 0.8~1.5Mpa. The harvest season of konjac is usually in September and October, and indoor processing is performed. Therefore, the operating temperature of the pressure tank body is selected to be carried out at room temperature. Q235-B (yield strength is 235Mpa) can be selected as the material for making the pressure tank body, which can meet the strength requirement during work.

[0046] In this embodiment, Figure 2 、 Figure 3As shown, the feed opening of pressure tank body 10 is provided with upper hopper 15, and pressure tank body 10 is in the shape of a truncated cone with small upper part and large lower part, for slowing down the impact that konjaku is subjected to when falling into pressure tank body 10 inside. The sidewall of pressure tank body 10 is provided with mounting assembly 17, for pressure tank body 10 being tilted and fixed on support, the central axis of pressure tank body 10 is 40~50 °, preferably 45 ° with horizontal, to facilitate the discharge of condensed water in tank body. Pressure tank body 10 is set to be in the shape of a truncated cone with small upper part and large lower part, material can slide down to bottom along the inwall of pressure tank body 10, can effectively reduce the material loss that material produces owing to collision with barrel wall in falling process, preferably, the sidewall of pressure tank body is 70~80 ° with tank body bottom surface, and the impact that konjaku is subjected to when falling into pressure tank is minimum.

[0047] In this embodiment, the stirring mechanism 14 is arranged at the bottom of the pressure tank body 10. The stirring mechanism 14 includes a stirring shaft 141, a stirring paddle 142 connected to the stirring shaft 141, and a driving assembly 143 for driving the stirring shaft 141 to rotate. The stirring paddle 142 is L-shaped, and the horizontal side of the stirring paddle 142 is fixedly connected to the stirring shaft 141. The pressure tank body 10 is a truncated cone with a small top and a large bottom. The upper end cover generally covers the upper end of the entire pressure tank body 10, while the lower end of the pressure tank body 10 has a larger surface area. The movable lower end cover can be selected to cover only a part of the lower end of the pressure tank body 10, and the other part is covered by a fixed end cover. The outward-opening lower end cover is hinged on the fixed end cover. The stirring mechanism 14 is arranged at the bottom of the pressure tank body 10. The stirring shaft 141 passes through the fixed end cover at the bottom of the pressure tank body 10 and is connected to the driving assembly 143. This can reduce the complexity of the feeding end cover mechanism 12 and reduce the difficulty of sealing. The form of bottom stirring can also make stirring shaft shorter, and shaft diameter is less, does not need intermediate bearing, is easy to maintain, overhaul, has long life, has reduced the requirement when stirring shaft is installed.The area of ​​stirring paddle 142 should not be too large, prevents that once stirring konjac too much causes torque too large, stirring paddle 142 is L-shaped, and its outer edge shape is identical with pressure tank shape, and the angle of the vertical side of i.e. L-shaped stirring paddle is identical with the angle of horizontal side and pressure tank body side wall and bottom surface.The spacing of stirring paddle 142 and the inwall of pressure tank body 10 should not be too large, prevents the occurrence of material that fails to obtain uniform processing because of leaking between stirring paddle and pressure tank body inwall.Preferably, realize synchronous rotation by key connection between stirring paddle 142 and stirring shaft 141, use countersunk screw axial positioning, stirring shaft sleeve is guaranteed airtightness by placing rotating seal ring between the round cover part on stirring shaft 141 and the bottom end cover of pressure tank body 10.Drive assembly 143 comprises coupling and reduction motor, and stirring shaft 141 connects reduction motor by coupling.

[0048] In the present embodiment, feeding end cap mechanism 12 comprises upper end cap 121, arcuate connecting rod mechanism 122 and first driving mechanism 123, one end of arcuate connecting rod mechanism 122 is connected with upper end cap 121, the other end is hinged with the upper end sidewall of pressure tank body 10, first driving mechanism 123 is hinged on the sidewall of pressure tank body 10, first driving mechanism 123 is connected with arcuate connecting rod mechanism 122, rotate around axle seat by first driving mechanism 123 driving control arcuate connecting rod mechanism 122, and then the opening and closing of driving control upper end cap 121.In order to measure the konjac of processing, above upper hopper 15, also be provided with metering funnel 18, konjac quantitatively falls into upper hopper 15 from metering funnel 18, then upper end cap 121 is opened to pressure tank body 10 insides, konjac falls into pressure tank body 10, so feeding end cap mechanism 12 will at least satisfy the feeding opening size that opens and will be greater than the individual maximum diameter of konjac, to prevent that material is blocked. The first drive mechanism 123 can be a pneumatic device or a hydraulic device. In this embodiment, the first drive mechanism 123 is a hydraulic device, including a hydraulic cylinder 1231 and a piston rod 1232. The lower end of the hydraulic cylinder 1231 is hinged on the side wall of the pressure tank body 10, and the piston rod 1232 is connected to the arc-shaped connecting rod mechanism 122. The opening and closing of the upper end cover 121 is controlled by the telescopic movement of the piston rod 1232: when the piston rod of the hydraulic cylinder is extended, it drives the arc-shaped connecting mechanism to rotate around the shaft seat, the upper end cover opens inward, the hydraulic cylinder piston rod is retracted, and the upper end cover closes. In other embodiments, the first drive mechanism 123 can also be configured as a pneumatic device, including a cylinder and a piston rod. The lower end of the cylinder is hinged on the side wall of the pressure tank body 10, and the piston rod is connected to the arc-shaped connecting rod mechanism 122. The opening and closing of the upper end cover 121 is controlled by the telescopic movement of the piston rod.

[0049] In this embodiment, the discharge port of the pressure tank body 10 is provided with a vertically arranged discharge hopper 16, and the discharge end cover mechanism 13 is arranged in the discharge hopper 16. The discharge end cover mechanism 13 includes a lower end cover 131, a connecting rod mechanism 132 and a second driving mechanism 133. One side of the lower end cover 131 is hinged to the lower end surface (fixed end cover) of the pressure tank body 10. The connecting rod mechanism 132 and the second driving mechanism 133 are both hinged between the discharge hopper 16 and the lower end cover 131. The connecting rod mechanism 132 includes a first connecting rod 1321 and a second connecting rod 1322 that are hinged to each other. The connecting rod mechanism 132 is driven and controlled by the telescopic movement of the piston rod of the second driving mechanism 133, thereby driving and controlling the opening and closing of the lower end cover 131.

[0050] like Figure 2 、 Figure 4As shown, an embodiment of a discharge end cover mechanism 13 is provided, the discharge end cover mechanism 13 includes a lower end cover 131, a connecting rod mechanism 132 and a second driving mechanism 133, one side of the lower end cover 131 is hinged to the fixed end cover on the lower bottom surface of the pressure tank body 10, the connecting rod mechanism 132 includes a first connecting rod 1321 and a second connecting rod 1322 hinged to each other, the free end of the first connecting rod 1321 is hinged to the lower end cover 131, the free end of the second connecting rod 1322 is hinged to the side wall of the discharge hopper 16, and the second driving mechanism 13 3 includes a hydraulic cylinder 1331 and a piston rod 1332. The hydraulic cylinder 1331 is hinged on the inner wall of the lower hopper 16. The piston rod 1332 is connected to the hinge point between the first connecting rod and the second connecting rod, or the piston rod 1332 is hinged to the end position of the first connecting rod or the end position of the second connecting rod near the hinge point between the first connecting rod and the second connecting rod. The telescopic movement of the piston rod 1332 drives the connecting rod mechanism 132 to operate, thereby driving the opening and closing of the lower end cover 131. The hydraulic cylinder 1331 can also be replaced by a pneumatic cylinder. When the upper end cover 121 is closed and steam is introduced into the pressure tank body 10, the lower end cover 131 is subjected to pressure perpendicular to the lower end cover due to the pressure difference between the inside and outside. The pin hole of the hinge point of the connecting rod mechanism 132 is subjected to pressure from the pin shaft. The connecting rod mechanism 132 is in an extreme position, that is, the first connecting rod 1321 and the second connecting rod 1322 are in a straight line, the pressure angle is equal to 90 degrees, and it enters the dead point, becoming a two-force rod. When the steam treatment is completed, the piston rod 1332 of the hydraulic cylinder 1331 retracts, pulling the connecting rod mechanism 132 away from the dead point. The first connecting rod 1321 and the second connecting rod 1322 form an angle, and the lower end cover 131 is opened outward. To ensure that the connecting rod mechanism 132 stops at the dead point and does not continue to rotate about the hinge point, the first connecting rod 1321 and the second connecting rod 1322 can only rotate within a range of 180 degrees.

[0051] like Figure 5 As shown, another embodiment of the unloading end cover mechanism 13 is provided, the unloading end cover mechanism 13 includes a lower end cover 131, a connecting rod mechanism 132 and a second driving mechanism 133, one side of the lower end cover 131 is hinged to the fixed end cover of the lower end surface of the pressure tank body 10, the connecting rod mechanism 132 includes a first connecting rod 1321 and a second connecting rod 1322 hinged to each other, the free end of the first connecting rod 1321 is hinged to the lower end cover 131, and the free end of the second connecting rod 1322 is hinged to the side wall of the unloading hopper 16, the second driving mechanism 133 includes a hydraulic cylinder 1331 and a piston rod 1332, the hydraulic cylinder 1331 is hinged to the inner wall of the unloading hopper 16, and the piston rod 1332 is hinged to the side wall of the lower end cover 131, and the telescopic movement of the piston rod 1332 drives the connecting rod mechanism 132 to move, thereby driving and controlling the opening and closing of the lower end cover 131, and the hydraulic cylinder 1331 can also be replaced by a cylinder. The working principle of the blanking end cover mechanism 13 is the same as that of the previous embodiment.

[0052] In this embodiment, a first step 1311 is provided on the edge of the lower end cap 131, and a second step 1312 is provided where the bottom surface of the pressure tank body 10 contacts the lower end cap 131. The first step 1311 and the second step 1312 match each other, and a layer of elastic sealing material is provided on the first step 1311 and / or the second step 1312. The stepped portion effectively enhances airtightness when the lower end cap 131 is in contact with the lower bottom surface of the pressure tank body 10. The provision of the elastic sealing material layer reduces steam leakage caused by positional errors of the connecting rod mechanism 132. The elastic sealing material can be an elastic expanded PTFE sealing material, which is made from PTFE plastic that has been expanded to 100%. This material is soft and flexible, easy to bend and has high strength. It is highly compressible and can easily flow through uneven contours, corners and narrow gaps and fill them. As long as it is tightened with low compression force, there will be no leakage. The thickness of the material is usually 1.5 to 3.0 mm.

[0053] In this embodiment, the middle portions of the first and second connecting rods 1321, 1322 are made of Q235A material, and the ends of the first and second connecting rods 1321, 1322 are hinged with high-performance carbon fiber. Stress analysis shows that when the steam peeling device is operating, the stress in the connecting rod mechanism 132 is primarily concentrated at the ends and at the hinged joints, while the stress in the middle of the connecting rod is relatively low. Therefore, the middle portion of the connecting rod is made of Q235A material, and the hinged joints at the ends of the connecting rod are made of high-performance carbon fiber (allowable stress 2000 MPa, elastic modulus 350 GPa), which can better meet the strength requirements.

[0054] In this embodiment, Figure 6 As shown, the frame 20 is tilted and fixed on the bracket, the rotating shaft of the spiral blade 21 and the brush roller 22 are arranged tilted to the horizontal direction, the rotating shaft of the spiral blade 21 is driven to rotate by a motor, and the spiral blade 21 lifts the peeled konjac upward and transports it to the discharging port, and the discharging port is provided with a discharging hopper. The inclination angle of the rotating shaft of the spiral blade and the brush roller to the horizontal direction is preferably 30 to 45 degrees. A soft scraper is installed on the spiral blade 21 to improve the peeling efficiency and increase the pressure between the konjac and the brush roller.

[0055] The brush roller 22 can be driven by gear transmission, chain transmission or synchronous belt transmission to achieve synchronous rotation of the brush roller 22. There are multiple brush rollers 22, and it is necessary to achieve synchronous rotation of multiple brush rollers 22. Gear transmission, chain transmission and synchronous belt transmission can all achieve synchronous rotation of the brush rollers 22.

[0056] Taking into account the actual work needs and cost factors, such as Figure 7As shown, in this embodiment, the brush rollers 22 are chain-driven, and the brush shaft of each brush roller 22 is circumferentially positioned with the corresponding sprocket 23. A chain 24 is connected between two adjacent sprockets 23, and the brush shaft of one of the brush rollers 22 is connected to the motor 26 via a coupling 25. The brush shaft and the sprocket can be circumferentially positioned with a flat key so that the brush shaft and the sprocket can rotate synchronously. When one of the brush rollers is driven by the motor to rotate, it synchronously drives the corresponding sprocket to rotate. The sprocket acts as a driving wheel to drive the two adjacent sprockets to rotate, and the transmission is carried out in this way, driving all the brush rollers to rotate synchronously.

[0057] Adopt above-mentioned konjaku peeling device that konjaku is peeled the method for comprising the following steps:

[0058] S1, prepare konjac raw material, clean and remove the earth foreign matter on konjac surface;

[0059] S2, by measuring funnel, konjac is added steam peeling device and is heat treated, the operating pressure of steam peeling device is 0.8~1.5Mpa; For ensuring steam treatment effect, the material volume is 1 / 3~1 / 2 of pressure tank volume; The operating temperature of steam peeling device can be room temperature;

[0060] After S3, konjaku is carried out steam treatment and is completed, steam is discharged quickly, and the konjaku epidermis is carried out to " steam explosion " and is processed, and opens lower end cover, and konjaku is fallen in the mechanical peeling device; Steam port is provided with pressure relief valve, opens pressure relief valve, and steam is instantaneously discharged, and the outer skin on konjaku surface bursts, and the lower end cover of pressure tank main body is opened, and konjaku directly falls in the feed opening of mechanical peeling device;

[0061] S4, mechanical peeling is carried out to konjac, remove the useless skin that adheres to konjac surface; The brush roller rotation of mechanical peeling device contacts the useless skin that removes konjac surface with konjac, and spiral blade is upwards promoted conveying by konjac, and the konjac after final mechanical peeling is discharged by discharging port;

[0062] S5. Collect the products and transport them to the next level of processing equipment.

[0063] The konjac peeling method of the present invention adopts steam peeling first and then mechanical peeling, and has little pulp loss during the peeling process, effectively reducing material waste in the peeling process, achieving high peeling quality, and effectively removing the skin at the concave parts of the konjac surface. The peeling principle is physical peeling, no chemical waste liquid is discharged, and the environment is not polluted. A ripening ring with a thickness of 1 to 2 mm is generated on the treated konjac surface, and enzymes on the surface of the ripened pulp are inactivated, thereby hindering the precipitation of KGM in the ripening ring and prolonging the time for the konjac to be exposed to the air without browning after peeling. After steam peeling, the konjac directly falls into a mechanical peeling device without being transported by a spiral elevator, thereby reducing the time the konjac stays in the equipment, improving the processing efficiency, and effectively preventing the konjac pulp from browning.

[0064] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A konjac peeling device, characterized in that, The invention comprises a steam peeling device (1) and a mechanical peeling device (2), wherein the material outlet of the steam peeling device (1) is arranged opposite to the material inlet of the mechanical peeling device (2), so that the konjac peeled by the steam falls directly into the mechanical peeling device (2). The steam peeling device (1) comprises a pressure tank body (10), the upper end of the pressure tank body (10) is provided with an opening for feeding, the lower end of the pressure tank body (10) is provided with an opening for discharging, the pressure tank body (10) is tilted and fixed on a bracket to facilitate the discharge of condensed water, the side wall of the pressure tank body (10) is provided with a steam port (11) for charging and / or discharging steam, the feeding port of the pressure tank body (10) is movably connected to an inward-opening feeding end cover mechanism (12), the discharging port of the pressure tank body (10) is movably connected to an outward-opening unloading end cover mechanism (13), and a stirring mechanism (14) is arranged inside the pressure tank body (10). The mechanical peeling device (2) comprises a frame (20), a feeding trough is provided inside the frame (20), a spiral blade (21) for conveying materials and a plurality of brush rollers (22) for peeling are rotatably installed in the feeding trough, and the brush rollers (22) are evenly arranged in an arc shape below the spiral blade (21); The discharge port of the pressure tank body (10) is provided with a vertically arranged discharge hopper (16), and the discharge end cover mechanism (13) is arranged in the discharge hopper (16). The discharge end cover mechanism (13) includes a lower end cover (131), a connecting rod mechanism (132) and a second driving mechanism (133). One side of the lower end cover (131) is hinged to the lower end surface of the pressure tank body (10). The connecting rod mechanism (132) and the second driving mechanism (133) are both hinged between the discharge hopper (16) and the lower end cover (131). The connecting rod mechanism (132) includes a first connecting rod (1321) and a second connecting rod (1322) that are hinged to each other. The piston rod of the second driving mechanism (133) is connected to the hinge point between the first connecting rod and the second connecting rod, or the piston rod is hinged to the end position of the first connecting rod near the connection point between the first connecting rod and the second connecting rod or the end position of the second connecting rod. The connecting rod mechanism (132) is driven and controlled by the telescopic movement of the piston rod of the second driving mechanism (133), thereby driving and controlling the opening and closing of the lower end cover (131); the rotation of the first connecting rod and the second connecting rod is limited to a range of 180 degrees; When steam is introduced into the pressure tank body (10), the lower end cover (131) is subjected to a pressure perpendicular to the lower end cover due to the pressure difference between the inside and outside, and the piston rod (1322) is extended to make the connecting rod mechanism (132) in the extreme position. The first connecting rod (1321) and the second connecting rod (1322) are located in a straight line, and the pressure angle is equal to 90 degrees. They enter the dead point and become a two-force rod. When the steam treatment is completed, the piston rod (1322) retracts and pulls the connecting rod mechanism (132) to make the connecting rod mechanism (132) leave the dead point. The first connecting rod (1321) and the second connecting rod (1322) form an angle, and the lower end cover (131) is opened outward.

2. Konjac peeling device according to claim 1, is characterized in that, An upper hopper (15) is provided at the feed port of the pressure tank body (10). The pressure tank body (10) is in the shape of a truncated cone with a small top and a large bottom, so as to mitigate the impact of the konjac when it falls into the interior of the pressure tank body (10).

3. Konjac peeling device according to claim 1, is characterized in that, The stirring mechanism (14) is arranged at the bottom of the pressure tank body (10), and comprises a stirring shaft (141), a stirring paddle (142) connected to the stirring shaft (141), and a driving assembly (143) for driving the stirring shaft (141) to rotate. The stirring paddle (142) is L-shaped, and the horizontal side of the stirring paddle (142) is fixedly connected to the stirring shaft (141).

4. konjac peeling device according to claim 1, is characterized in that, The feeding end cover mechanism (12) includes an upper end cover (121), an arc-shaped connecting rod mechanism (122) and a first driving mechanism (123), one end of the arc-shaped connecting rod mechanism (122) is connected to the upper end cover (121), and the other end of the arc-shaped connecting rod mechanism (122) is hinged to the side wall of the pressure tank body (10), and the first driving mechanism (123) is hinged to the side wall of the pressure tank body (10). The first driving mechanism (123) is connected to the arc-shaped connecting rod mechanism (122), and the arc-shaped connecting rod mechanism (122) is driven by the first driving mechanism (123) to rotate around the shaft seat, thereby driving and controlling the opening and closing of the upper end cover (121).

5. Konjac peeling device according to claim 1, is characterized in that, A first step portion (1311) is provided on the edge of the lower end cover (131), and a second step portion (1312) is provided at a portion where the bottom surface of the pressure tank body (10) contacts the lower end cover (131). The first step portion (1311) and the second step portion (1312) match each other, and an elastic sealing material layer is provided on the first step portion (1311) and / or the second step portion (1312).

6. The konjac peeling device according to claim 1 or 5, wherein The middle parts of the first connecting rod (1321) and the second connecting rod (1322) are made of Q235 material, and the two ends of the first connecting rod (1321) and the second connecting rod (1322) are made of high-performance carbon fiber hinge joints.

7. The konjac peeling device according to claim 1, wherein The brush roller (22) is driven by gear transmission, chain transmission or synchronous belt transmission to achieve synchronous rotation of the brush roller (22).

8. The konjac peeling device according to claim 7, wherein The brush rollers (22) are chain-driven, and the brush shaft of each brush roller (22) is circumferentially positioned with the corresponding sprocket (23). A chain (24) is connected between two adjacent sprockets (23), and the brush shaft of one of the brush rollers (22) is connected to the motor via a coupling.

9. A konjac peeling method, characterized in that, Adopt the konjac peeling device described in any one of claim 1 to 8, comprise the following steps: S1, prepare konjak raw material, clean and remove the earth foreign matter on described konjak surface; S2, by measuring funnel, described konjaku is added described steam peeling device and is heat treated, the operating pressure of described steam peeling device is 0.8~1.5Mpa; S3, after described konjaku steam treatment is completed, discharge steam quickly, described konjaku epidermis is carried out to " steam explosion " process, open lower end cover, make described konjaku fall in described mechanical peeling device; S4, described konjac is carried out mechanical peeling, remove the useless skin that adheres to described konjac surface; S5. Collect the products and transport them to the next level of processing equipment.

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