Onion impurity removing and skin breaking machine

Abstract

The embodiment of the invention relates to the technical field of onion skin breaking, and provides an onion impurity removing and skin breaking machine which comprises an impurity removing box, a skin breaking and impurity removing roller set, an impurity removing power box and a pneumatic skin breaking mechanism, at least two impurity removing cavities are formed in the upper portion of the impurity removing box, and an impurity discharging cavity is formed in the lower portion of the impurity removing box; the number of the peel breaking and impurity removing roller sets is at least two, the peel breaking and impurity removing roller sets correspond to the impurity removing cavities in a one-to-one mode, the peel breaking and impurity removing roller sets are rotationally arranged on the lower portions of the impurity removing cavities in the impurity removing box, the impurity removing power box is arranged on one side of the impurity removing box, and an impurity removing power set capable of driving the at least two peel breaking and impurity removing roller sets to rotate is arranged in the impurity removing power box. The pneumatic peel breaking mechanism is arranged in the impurity removing power box and connected with the impurity removing power set. By means of the technical scheme, the problems that in the prior art, an onion impurity removing and skin breaking machine is low in processing efficiency, and incomplete skin peeling is prone to occurring are solved.

Description

Technical Field

[0001] Embodiments of the present disclosure relate to the technical field of onion peeling, and more specifically, to an onion impurity removing and peeling machine. Background Art

[0002] As a common food ingredient, onions are prone to having a large number of impurities and complex types in the raw materials due to the complex growth environment and long storage and transportation processes, such as soil, plastic film, sand, wire rope, metal, etc. Therefore, before use, onions usually need to be peeled before further processing. Nowadays, for the peeling process of onions, an onion impurity removing and peeling machine is mostly used for impurity removing and peeling operations.

[0003] There are mainly two peeling methods for existing onion impurity removing and peeling machines. One is to make knife marks on the onion surface and then spray high-pressure air to gradually peel the onion epidermis centered on the knife marks. The other is to make knife marks on the onion surface and then put it into a roller with a brush on its surface, and rub off the onion epidermis by the rotation of the roller.

[0004] However, in the actual processing process, the above two onion impurity removing and peeling methods both require pre-peeling treatment of the onions before peeling, resulting in low processing efficiency. Moreover, when peeling onions, diamond-shaped or special-shaped blades are mostly used, which not only have high usage costs and short service lives, but also have relatively few scratches (1-2) on the onion surface and relatively shallow scratches on thick-skinned onions, often resulting in incomplete peeling on the onion surface. Summary of the Invention

[0005] To overcome the above defects, embodiments of the present disclosure provide an onion impurity removing and peeling machine to solve the problems in the background art that the existing onion impurity removing and peeling machines have low processing efficiency and are prone to incomplete peeling.

[0006] According to one aspect, at least one embodiment of the present disclosure provides an onion impurity removing and peeling machine, including an impurity removing box, a peeling and impurity removing roller group, an impurity removing power box, and a pneumatic peeling mechanism; At least two impurity removing cavities are provided in the upper part of the impurity removing box, and a waste removing cavity is provided in the lower part of the impurity removing box; At least two peeling and impurity removing roller groups are provided and correspond to the impurity removing cavities one by one. The peeling and impurity removing roller groups are rotatably arranged in the lower part of the impurity removing cavities in the impurity removing box; The impurity removing power box is arranged on one side of the impurity removing box, and an impurity removing power group capable of driving at least two peeling and impurity removing roller groups to rotate is provided in the impurity removing power box; The pneumatic peeling mechanism is arranged in the impurity removal power box and is connected to the impurity removal power group. A number of high-pressure jet nozzles capable of jetting high-pressure gas into the impurity removal cavity are provided on the pneumatic peeling mechanism for removing the outer skin of onions. Among them, the peeling and impurity removal roller group includes a conveying roller and a peeling roller. The conveying roller is rotatably arranged in the impurity removal box, and spiral feeding blades are arranged on the conveying roller. The peeling roller is rotatably arranged in the impurity removal box. A number of serrated circular knives capable of cutting the surface of onions are equidistantly arranged on the peeling roller. A conveying cavity is formed between the peeling roller and the conveying roller.

[0007] On the basis of the foregoing solution, the impurity removal power group includes a power frame, a power shaft, a power gear, and a power motor. The power frame is arranged in the impurity removal power box. A number of power shafts are provided and are rotatably arranged on the power frame. The power shafts correspond to the conveying roller and the peeling roller one by one. One end of the power shaft is connected to one end of the conveying roller or the peeling roller. A number of power gears are provided and correspond to the power shafts one by one. The power gears are arranged on the power shafts, and adjacent two power gears are meshed with each other. The power motor is installed on the power frame, and the output end of the power motor is connected to one end of one of the power shafts.

[0008] As a preferred technical solution of the present disclosure, the pneumatic peeling mechanism includes a gas generation part and a gas transmission part. The gas generation part is arranged on the power frame and is in transmission connection with one of the power shafts. Two groups of gas transmission parts are provided and are symmetrically arranged on both sides of the impurity removal power box. The gas transmission parts are communicated with the gas generation part.

[0009] On the basis of the foregoing solution, further, the gas generation part includes a gas generation disc, an eccentric shaft, a gas generation box, an annular gas generation slideway, and a gas pipeline group. The gas generation disc is rotatably arranged on the power frame, and a gas generation belt pulley group is arranged in transmission between the gas generation disc and one of the power shafts. The eccentric shaft is rotatably arranged at an eccentric position on the side of the gas generation disc away from the power frame. Two gas generation boxes are provided and are arranged on the power frame. The two gas generation boxes are symmetrically distributed on both sides of the gas generation disc. A gas generation slider is hermetically and slidably arranged in each gas generation box. A gas generation rod is arranged on one side of each gas generation slider close to the gas generation disc. The annular gas-making slideway is arranged between the two gas-making rods. The eccentric shaft is rotatably arranged in the annular gas-making slideway. By driving the eccentric shaft through the gas-making disc, the annular gas-making slideway can be driven to move linearly back and forth. There are two sets of gas pipelines, which correspond to the gas-making boxes one by one. The gas pipelines are arranged through the impurity removal power box and are communicated with the side of the gas-making box away from the gas-making disc.

[0010] On the basis of the foregoing solution, further, the gas pipeline group includes a three-way gas pipe, an intake pipe and an exhaust pipe; The three-way gas pipe is arranged through the impurity removal power box, and one end of the three-way gas pipe is communicated with one end of the gas-making box; The intake pipe is communicated and arranged at one end of the three-way gas pipe, and an intake check valve is installed on the intake pipe; The exhaust pipe is communicated and arranged at one end of the three-way gas pipe, and an exhaust check valve is installed on the exhaust pipe.

[0011] On the basis of the foregoing solution, further, the gas delivery part includes a gas storage tank and a pressure relief valve; The gas storage tank is arranged on one side of the impurity removal power box, and one end of the exhaust pipe is communicated with the gas storage tank; The pressure relief valve is installed on the gas storage tank.

[0012] On the basis of the foregoing solution, several of the high-pressure jet nozzles are all communicated with the adjacent gas storage tank through air supply pipes, and an air supply valve is installed on each air supply pipe.

[0013] On the basis of the foregoing solution, a diversion plate capable of guiding the onions to fall is arranged on the side of the impurity removal box away from the impurity removal power box.

[0014] On the basis of the foregoing solution, a feed baffle is arranged on the side of several of the impurity removal cavities close to the impurity removal power box.

[0015] On the basis of the foregoing solution, a pressure detection sensor is also communicated with the gas storage tank.

[0016] The beneficial effects of the embodiments of the present disclosure are: 1. In the present disclosure, by arranging a peeling and impurity-removing roller group in each impurity-removing cavity, not only can the onion be processed synchronously through multiple chambers, but also when the onion enters the conveying cavity during the processing of the onion, the rotation of the spiral feeding blades on the conveying roller can push the onion to move. At the same time, the rotation of the peeling roller can drive the serrated circular knife to rotate, cutting the surface of the onion. With the cooperation of the two, compared with the traditional blade cutting, the serrated circular knives evenly distributed on the peeling roller can also cut multiple scratches on the surface of the onion, completing the peeling operation of the onion during the process of conveying the onion, reducing additional operation steps and improving work efficiency.

[0017] 2. In the present disclosure, by arranging a pneumatic peeling mechanism, when the impurity-removing power group drives the peeling and impurity-removing roller group to rotate, the pneumatic generating part can compress gas into the pneumatic conveying part, so that the compressed gas is ejected from the high-pressure jet head through the air supply pipe. The gas ejected from the high-pressure jet head is used to remove the loosened epidermis after cutting the onion epidermis. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following will briefly introduce the drawings required for the description of the embodiments of the present disclosure. Obviously, the following drawings are only some exemplary embodiments of the present disclosure. For those of ordinary skill in the art, other drawings can also be obtained based on the content of the exemplary embodiments of the present disclosure and these drawings without creative efforts.

[0019] Figure 1 It is a schematic structural diagram of an overall onion impurity-removing and peeling machine in an embodiment of the present disclosure; Figure 2 It is a schematic structural diagram of a partial cross-section of an onion impurity-removing and peeling machine in an embodiment of the present disclosure; Figure 3 For the present disclosure Figure 2 It is a schematic diagram of a partial enlarged structure at A in the embodiment; Figure 4 It is a schematic structural diagram of the cooperation of the impurity-removing box, the diversion plate and the feeding baffle in an embodiment of the present disclosure; Figure 5 It is a schematic structural diagram of the cooperation of the peeling and impurity-removing roller group and the impurity-removing power group in an embodiment of the present disclosure; Figure 6 It is a schematic structural diagram of a partial cross-section of the pneumatic peeling mechanism in an embodiment of the present disclosure.

[0020] In the figure: 001, impurity-removing power group; 002, pneumatic peeling mechanism; 1. Impurity removal box; 2. Impurity removal power box; 3. High-pressure jet head; 4. Conveyor roller; 5. Spiral feeding blade; 6. Skin-breaking roller; 7. Serrated circular knife; 8. Power frame; 9. Power shaft; 10. Power gear; 11. Power motor; 12. Gas-making disc; 13. Gas-making pulley set; 14. Eccentric shaft; 15. Gas-making box; 16. Gas-making slider; 17. Gas-making rod; 18. Annular gas-making slideway; 19. Three-way gas pipe; 20. Inlet pipe; 21. Inlet check valve; 22. Exhaust pipe; 23. Exhaust check valve; 24. Gas storage tank; 25. Pressure relief valve; 26. Gas supply pipe; 27. Gas supply valve; 28. Deflector; 29. Feed baffle; 30. Air pressure detection sensor. Detailed implementation mode

[0021] The following further details the present disclosure in conjunction with the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present disclosure, rather than limiting the present disclosure.

[0022] To make the drawings concise, only the parts related to the disclosure are schematically shown in each drawing, and they do not represent the actual structure of the product. Additionally, to make the drawings concise and easy to understand, for components with the same structure or function in some drawings, only one of them is schematically shown, or only one of them is labeled. In this article, "one" not only means "only this one", but also means "more than one" situation, and "several" includes "two" and "more than two".

[0023] In this article, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0024] In the present disclosure, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "over", and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under", and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicating that the horizontal height of the first feature is lower than that of the second feature.

[0025] In the description of this embodiment, the orientation or positional relationships such as "upper", "lower", "left", "right", etc. are based on the orientation or positional relationships shown in the drawings. These are only for the convenience of description and simplifying the operations, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present disclosure.

[0026] In addition, in the description of this application, the terms "first", "second", etc. are only used for distinguishing descriptions and cannot be construed as indicating or implying relative importance.

[0027] As Figures 1 - 6 shown, it shows a kind of onion impurity removing and skinning machine in an embodiment of the present disclosure, which includes an impurity removing box 1, an impurity removing and skinning roller group, an impurity removing power box 2, and a pneumatic skinning mechanism 002.

[0028] As described above, at least two impurity removing cavities are provided in the upper part of the impurity removing box 1, and a waste discharging cavity is provided in the lower part of the impurity removing box 1. By providing the waste discharging cavity, the epidermis and impurities after onion impurity removal can be discharged.

[0029] As Figure 5 shown, as described above, the impurity removing and skinning roller group has at least two, and corresponds to the impurity removing cavities one by one. The impurity removing and skinning roller group is rotatably arranged at the lower part of the impurity removing cavities in the impurity removing box 1. The impurity removing and skinning roller group includes a conveying roller 4 and a skinning roller 6. The conveying roller 4 is rotatably arranged in the impurity removing box 1, and spiral feeding blades 5 are arranged on the conveying roller 4. The skinning roller 6 is rotatably arranged in the impurity removing box 1, and a plurality of serrated circular knives 7 capable of cutting the surface of the onion are arranged on the skinning roller 6 at equal distances. A conveying cavity is formed between the skinning roller 6 and the conveying roller 4.

[0030] Specifically, after placing the onions to be processed into the conveying cavity, the rotation of the spiral feeding blades 5 on the conveying roller 4 can push the onions to move. At the same time, the rotation of the skinning roller 6 can drive the serrated circular knives 7 to rotate, which can cut the surface of the onions. With the cooperation of the two, compared with the traditional blade cutting, the serrated circular knives 7 evenly distributed on the skinning roller 6 can also cut multiple scratches on the surface of the onions, completing the skinning operation of the onions during the process of conveying the onions, reducing additional operation steps and improving work efficiency.

[0031] As Figures 2 - 4As shown, the above-mentioned impurity removal power box 2 is arranged on one side of the impurity removal box 1, and the impurity removal power box 2 is provided with an impurity removal power group 001 capable of driving at least two skin breaking and impurity removal roller groups to rotate, and the impurity removal power group 001 includes a power frame 8, a power shaft 9, a power gear 10 and a power motor 11, the power frame 8 is arranged in the impurity removal power box 2, a plurality of power shafts 9 are provided, and are rotatably arranged on the power frame 8, the power shaft 9 corresponds to the conveying roller 4 and the skin breaking roller 6 one by one, one end of the power shaft 9 is connected to one end of the conveying roller 4 or the skin breaking roller 6, a plurality of power gears 10 are provided, and correspond to the power shaft 9 one by one, the power gear 10 is provided on the power shaft 9, and two adjacent power gears 10 are meshed with each other, and the power motor 11 is installed on the power frame 8, and the output end of the power motor 11 is connected to one end of one of the power shafts 9.

[0032] Specifically, the power motor 11 is started, and the output end of the power motor 11 can drive the power shaft 9 connected thereto to rotate. The rotation of the power shaft 9 can drive multiple power gears 10 to rotate synchronously. The power gear 10 drives the power shaft 9, the conveying roller 4 and the skin-breaking roller 6 to rotate. The rotation of the spiral feeding blade 5 on the conveying roller 4 can push the onion to move. At the same time, the rotation of the skin-breaking roller 6 can drive the serrated circular knife 7 to rotate to cut the surface of the onion. The two cooperate with each other. Compared with traditional blade cutting, the serrated circular knife 7 distributed at equal distances on the skin-breaking roller 6 can also cut multiple scratches on the surface of the onion. The onion skinning operation is completed during the onion conveying process, which reduces additional operation steps and improves work efficiency.

[0033] like Figure 2 and Figure 6 As shown, the above-mentioned pneumatic skin breaking mechanism 002 is arranged in the impurity removal power box 2 and is connected to the impurity removal power group 001. The pneumatic skin breaking mechanism 002 is provided with a plurality of high-pressure jet heads 3 which can spray high-pressure gas into the impurity removal cavity to remove the onion skin. The pneumatic skin breaking mechanism 002 includes a gas generating part and a gas conveying part. The gas generating part is arranged on the power frame 8 and is transmission-connected to one of the power shafts 9. The gas conveying part is provided with two groups and is symmetrically arranged on both sides of the impurity removal power box 2. The gas conveying part is communicated with the gas generating part.

[0034] Among them, the gas generation part includes a gas generation disc 12, an eccentric shaft 14, a gas generation box 15, an annular gas generation slideway 18 and a gas pipeline group. The gas generation disc 12 is rotatably arranged on the power frame 8, and a gas generation belt pulley group 13 is arranged in transmission between the gas generation disc 12 and one of the power shafts 9. The eccentric shaft 14 is rotatably arranged at an eccentric position on the side of the gas generation disc 12 away from the power frame 8. There are two gas generation boxes 15, which are arranged on the power frame 8, and the two gas generation boxes 15 are symmetrically distributed on both sides of the gas generation disc 12. A gas generation slider 16 is hermetically and slidably arranged in each gas generation box 15. A gas generation rod 17 is arranged on one side of each gas generation slider 16 close to the gas generation disc 12. The annular gas generation slideway 18 is arranged between the two gas generation rods 17. The eccentric shaft 14 is rotatably arranged in the annular gas generation slideway 18. By driving the eccentric shaft 14 to move through the gas generation disc 12, the annular gas generation slideway 18 can be driven to move linearly back and forth. There are two gas pipeline groups, which correspond to the gas generation boxes 15 one by one. The gas pipeline groups penetrate through the impurity removal power box 2 and are connected to the side of the gas generation box 15 away from the gas generation disc 12.

[0035] The gas pipeline group includes a three-way gas pipe 19, an inlet gas pipe 20 and an exhaust gas pipe 22. The three-way gas pipe 19 penetrates through the impurity removal power box 2. One end of the three-way gas pipe 19 is connected to one end of the gas generation box 15. The inlet gas pipe 20 is connected and arranged at one end of the three-way gas pipe 19. An inlet gas one-way valve 21 is installed on the inlet gas pipe 20. The exhaust gas pipe 22 is connected and arranged at one end of the three-way gas pipe 19. An exhaust gas one-way valve 23 is installed on the exhaust gas pipe 22.

[0036] Specifically, when the power shaft 9 rotates, the gas generation disc 12 can be driven to rotate through the gas generation belt pulley group 13. The rotation of the gas generation disc 12 can drive the eccentric shaft 14 to move. The movement of the eccentric shaft 14 in the annular gas generation slideway 18 can drive the annular gas generation slideway 18 to move linearly back and forth. The movement of the annular gas generation slideway 18 can drive the gas generation rod 17 to move. The movement of the gas generation rod 17 can drive the gas generation slider 16 to move linearly back and forth in the gas generation box 15. When the gas generation slider 16 moves towards the end away from the three-way gas pipe 19 in the gas generation box 15, external gas will enter the gas generation box 15 through the inlet gas pipe 20 and the inlet gas one-way valve 21. When the gas generation slider 16 moves towards the side close to the three-way gas pipe 19, the gas in the gas generation box 15 will be discharged through the exhaust gas pipe 22 and the exhaust gas one-way valve 23.

[0037] As described above, the gas transmission part includes a gas storage tank 24 and a pressure relief valve 25. The gas storage tank 24 is arranged on one side of the impurity removal power box 2. One end of the exhaust gas pipe 22 is connected to the gas storage tank 24. The pressure relief valve 25 is installed on the gas storage tank 24. A pressure detection sensor 30 is also connected to the gas storage tank 24.

[0038] Specifically, the gas discharged through the exhaust pipe 22 will enter the air storage tank 24, pneumatically pressurize the inside of the air storage tank 24. Through the air pressure detection sensor 30, the air pressure inside the air storage tank 24 can be detected. When the gas inside the air storage tank 24 exceeds the set pressure, the excessive gas can be discharged through the pressure relief valve 25.

[0039] It should be emphasized that the above-mentioned several high-pressure jet heads 3 are all connected to the adjacent air storage tank 24 through the air supply pipes 26, and an air supply valve 27 is installed on each air supply pipe 26.

[0040] Specifically, the gas inside the air storage tank 24 can pass through the adjusted air supply valve 27, so that the gas is continuously and stably ejected from the high-pressure jet head 3 through the air supply pipe 26, removing the outer skin and impurities of the onion.

[0041] It is further supplemented and explained that a deflector 28 capable of guiding the onion to fall is provided on one side of the impurity removal box 1 away from the impurity removal power box 2.

[0042] During the actual processing, in order to prevent adhesion on the conveying roller 4 and the skin-breaking roller 6 from reducing the onion conveying and skin-cutting effects, cleaning rods are also provided at the bottoms of the conveying roller 4 and the skin-breaking roller 6, so that the cleaning rods are in transmission connection with the conveying roller 4 and the skin-breaking roller 6. Through the rotation of the cleaning rods, the conveying roller 4 and the skin-breaking roller 6 are cleaned.

[0043] After removing the impurities and epidermis on the surface of the onion through the skin-breaking and impurity-removing roller group and the pneumatic skin-breaking mechanism 002, it can be guided to the transmission device through the deflector 28 for subsequent processing of the onion.

[0044] The above-mentioned several impurity removal cavities are all provided with feeding baffles 29 on the side close to the impurity removal power box 2, so as to quickly place the onions to be processed into the inside of the impurity removal cavities.

[0045] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure and not to limit them. Although the present disclosure has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present disclosure can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present disclosure, and they should all be covered within the scope of the claims of the present disclosure.

Claims

1. An onion impurity removal and peeling machine, characterized in that: include: A debris removal box (1), wherein the upper portion of the debris removal box (1) is provided with at least two debris removal cavities, and the lower portion of the debris removal box (1) is provided with a debris discharge cavity; At least two skin-breaking and impurity-removing roller groups are provided and correspond one to one with the impurity-removing cavities. The skin-breaking and impurity-removing roller groups are rotatably arranged at the lower part of the impurity-removing cavity in the impurity-removing box (1); A debris removal power box (2) is arranged on one side of the debris removal box (1), wherein the debris removal power box (2) is provided with a debris removal power group (001) capable of driving at least two of the skin-breaking and debris removal roller groups to rotate; A pneumatic peeling mechanism (002) is arranged in the impurity removal power box (2) and connected to the impurity removal power group (001). The pneumatic peeling mechanism (002) is provided with a plurality of high-pressure jet heads (3) capable of jetting high-pressure gas into the impurity removal cavity, so as to remove the outer skin of the onion; Wherein, the skin breaking and impurity removing roller group comprises: A conveying roller (4) is rotatably arranged in the impurity removal box (1), and a spiral conveying blade (5) is arranged on the conveying roller (4); A skin-breaking roller (6) is rotatably arranged in the impurity removal box (1), and a plurality of equidistantly distributed sawtooth circular knives (7) capable of cutting the surface of the onions are provided on the skin-breaking roller (6), and a conveying cavity is formed between the skin-breaking roller (6) and the conveying roller (4).

2. The onion impurity removal and peeling machine according to claim 1, characterized in that: The impurity removal power group (001) comprises: A power frame (8) disposed in the impurity removal power box (2); A plurality of power shafts (9) are provided and are rotatably arranged on the power frame (8); the power shafts (9) correspond one to one with the conveying roller (4) and the skin-breaking roller (6); one end of the power shaft (9) is connected to one end of the conveying roller (4) or the skin-breaking roller (6); A plurality of power gears (10) are provided, and correspond one to one with the power shafts (9); the power gears (10) are arranged on the power shafts (9), and two adjacent power gears (10) are meshed with each other; A power motor (11) is mounted on the power frame (8), and an output end of the power motor (11) is connected to one end of one of the power shafts (9).

3. The onion impurity removal and peeling machine according to claim 2, characterized in that: The pneumatic skin-breaking mechanism (002) comprises: A gas generating unit, arranged on the power frame (8) and drivingly connected to one of the power shafts (9); The gas conveying parts are provided with two groups and are symmetrically arranged on both sides of the impurity removal power box (2); the gas conveying parts are connected to the gas generating part.

4. The onion impurity removal and peeling machine according to claim 3, characterized in that: The gas generating unit comprises: An aeration disc (12) is rotatably mounted on the power frame (8), and an aeration pulley assembly (13) is provided between the aeration disc (12) and one of the power shafts (9) for transmission; An eccentric shaft (14) rotatably disposed at an eccentric position on a side of the gas generating disk (12) away from the power frame (8); Two gas-generating boxes (15) are provided and arranged on the power frame (8), the two gas-generating boxes (15) are symmetrically distributed on both sides of the gas-generating disk (12), each gas-generating box (15) is sealed and slidably provided with a gas-generating slider (16), and each gas-generating slider (16) is provided with a gas-generating rod (17) on one side close to the gas-generating disk (12); An annular gas-generating slideway (18) is arranged between the two gas-generating rods (17); the eccentric shaft (14) is rotatably arranged in the annular gas-generating slideway (18); the eccentric shaft (14) is driven to move by the gas-generating disk (12), thereby driving the annular gas-generating slideway (18) to perform linear reciprocating motion; Two gas delivery pipe groups are provided, and correspond one to one with the gas making boxes (15). The gas delivery pipe groups are arranged through the impurity removal power box (2) and are connected to a side of the gas making box (15) away from the gas making disk (12).

5. The onion impurity removal and skin breaking machine according to claim 4, characterized in that: The gas pipeline group comprises: A three-way air pipe (19) is provided through the impurity removal power box (2), one end of the three-way air pipe (19) is connected to one end of the gas generating box (15); An air intake pipe (20) is arranged in communication with one end of the three-way air pipe (19), and an air intake check valve (21) is installed on the air intake pipe (20); An exhaust pipe (22) is arranged in communication with one end of the three-way air pipe (19), and an exhaust check valve (23) is installed on the exhaust pipe (22).

6. The onion impurity removal and peeling machine according to claim 5, characterized in that: The gas delivery unit comprises: An air storage box (24) is arranged on one side of the impurity removal power box (2), and one end of the exhaust pipe (22) is connected to the air storage box (24); A pressure relief valve (25) is installed on the air storage box (24).

7. The onion impurity removal and skin breaking machine according to claim 6, characterized in that: The plurality of high-pressure jet heads (3) are connected to the adjacent air storage box (24) via an air supply pipe (26), and an air supply valve (27) is installed on each of the air supply pipes (26).

8. The onion impurity removal and peeling machine according to claim 1, characterized in that: A guide plate (28) capable of guiding the onions to fall is provided on a side of the impurity removal box (1) away from the impurity removal power box (2).

9. The onion impurity removal and peeling machine according to claim 1, characterized in that: A feed baffle (29) is provided on one side of the plurality of impurity removal cavities close to the impurity removal power box (2).

10. The onion impurity removal and skin breaking machine according to claim 6, characterized in that: The air storage box (24) is also connected to an air pressure detection sensor (30).

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