Multi-layer vegetable pickling process based on turnover structure

Abstract

The invention relates to the technical field of vegetable pickling, and discloses a multi-layer vegetable pickling process based on a turnover structure, which comprises the following steps: S1, selecting fresh vegetables with moderate maturity and compact texture, and thoroughly cleaning silt, pesticide residues and impurities on the surfaces of the vegetables with flowing clear water; s2, performing root cutting, peeling and leaf removing treatment according to the characteristics of the vegetables, and airing to remove excessive water; and S3, putting the pretreated vegetables and the pickling liquid into vegetable pickling equipment. The multi-layer vegetable pickling process based on the overturning structure can effectively solve the problems that in the prior art, vegetables and pickling liquid are commonly placed in an open or covered pool body, the pickling process is completed by means of natural permeation, but the occupied area is large, the utilization rate is low, the requirement of large-scale production is difficult to meet, and meanwhile, the cost is low. A traditional device cannot achieve independent pickling of multiple varieties of vegetables, different varieties of vegetables need to share the same pickling pool, and flavor tainting is easily caused.

Description

Technical Field

[0001] The present invention relates to the technical field of vegetable pickling, and particularly relates to a multi-layer vegetable pickling process based on a flipping structure. Background Art

[0002] As a food preservation and flavor improvement technology with a long history, pickled vegetables are widely used in the food processing industry. With the improvement of consumers' requirements for the quality of pickled vegetables and the expansion of industrial production scale, the limitations of traditional pickling processes and equipment have gradually emerged. Currently, common vegetable pickling methods mainly include static immersion pickling and simple mechanical stirring pickling.

[0003] In the prior art, vegetables and pickling liquid are usually placed together in an open or covered tank, and the pickling process is completed by natural penetration. However, it has a large floor area and low utilization rate, making it difficult to meet the needs of large-scale production. At the same time, traditional devices cannot achieve independent pickling of multiple varieties of vegetables. Different categories need to share the same pickling tank, which easily leads to flavor cross-taste. Summary of the Invention

[0004] In view of the above-mentioned drawbacks of the prior art, the present invention provides a multi-layer vegetable pickling process based on a flipping structure, which can effectively solve the problems in the prior art that vegetables and pickling liquid are usually placed together in an open or covered tank, and the pickling process is completed by natural penetration. However, it has a large floor area and low utilization rate, making it difficult to meet the needs of large-scale production. At the same time, traditional devices cannot achieve independent pickling of multiple varieties of vegetables. Different categories need to share the same pickling tank, which easily leads to flavor cross-taste.

[0005] To achieve the above object, the present invention is realized through the following technical solutions: The present invention provides a multi-layer vegetable pickling process based on a flipping structure, including: S1. Select fresh, moderately mature, and firm-textured vegetables, and thoroughly wash the sediment, pesticide residues, and impurities on the surface of the vegetables with flowing water; S2. Perform root trimming, peeling, and leaf removal on the vegetables according to their characteristics, and air-dry to remove excess moisture; S3. Place the pre-treated vegetables and pickling liquid into a vegetable pickling device, and use the diffusion and osmosis of the solution to evenly infiltrate the salt solution into the internal tissues of the vegetables; S4. Determine the flipping frequency and flipping angle according to the characteristics of the processed vegetables, and perform flipping treatment on the pickled vegetables; S5. After pickling is completed, the vegetables need to be washed to remove excess salt and impurities on the surface, and dehydrated for easy storage and packaging; Among them, the vegetable pickling device described in S3 includes a rotating part. The rotating part includes a vertical frame fixed on the upper surface of the base. One side of the vertical frame is respectively rotatably connected with an upper sprocket and a lower sprocket. The upper sprocket and the lower sprocket are distributed in sequence from top to bottom. The outer surfaces of the upper sprocket and the lower sprocket are both meshed and connected with chains. The chains are provided with connecting plates at intervals on the side far from the vertical frame. The outer surface of the connecting plate far from the vertical frame is fixedly connected with a hollow shaft; A placing part, the placing part includes a pickling cylinder. The pickling cylinder is rotatably connected with the circumferential outer surface of the hollow shaft through a rotating groove opened at its outer end. There are two vertical frames, and the two vertical frames are symmetrically distributed at both ends of the pickling cylinder. A turning part for driving the pickling cylinder to rotate is arranged on the side of the vertical frame close to the chain.

[0006] Furthermore, the turning part includes a guide rail plate fixedly connected to the outer surface of the vertical frame. A toothed belt is fixedly connected to the inner wall surface of the guide rail plate. A connecting rod is slidably connected to the inner wall surface of the guide rail plate. A ratchet groove is opened inside the pickling cylinder, and the inside of the ratchet groove is communicated with the inside of the rotating groove. The outer end of the connecting rod penetrates through the hollow shaft and extends into the inside of the ratchet groove. A gear meshing with the outer surface of the toothed belt is fixedly connected to the circumferential outer surface of the connecting rod.

[0007] Furthermore, the outer end of the connecting rod is fixedly connected with a connecting ring. A special-shaped groove is opened on the outer surface of the connecting ring. A pawl fitting with the inner wall surface of the ratchet groove is rotatably connected to the special-shaped groove through a shaft rod arranged on its inner wall surface.

[0008] Furthermore, a torsion spring connected to the inside of the pawl is sleeved on the circumferential outer surface of the shaft rod. A limiting post fitting with the inner wall of the special-shaped groove is fixedly connected to the outer surface of the pawl.

[0009] Furthermore, a sealing cover is hinged on the circumferential outer surface of the pickling cylinder. A counterweight rod is fixedly connected to the circumferential outer surface of the pickling cylinder. A toothed ring is fixedly connected to the outer end of the pickling cylinder.

[0010] Furthermore, a placing plate is fixedly connected between the two vertical frames. The placing plate is fixedly connected with a supporting plate through a hydraulic cylinder arranged on its upper surface. The upper surface of the supporting plate is designed with an arc surface fitting with the outer surface of the pickling cylinder.

[0011] Furthermore, a driving base for driving the lower sprocket to rotate is arranged on the side of the vertical frame far from the pickling cylinder. An anti-slip layer is arranged on the upper surface of the supporting plate.

[0012] The technical solution provided by the present invention has the following beneficial effects compared with the prior art: The present invention is provided with an upright frame, an upper sprocket, a lower sprocket, a chain, a connecting plate and a pickling cylinder. A plurality of pickling cylinders on the outer surface of the upright frame are driven by a vertically arranged chain. The rotation direction of the upper sprocket is the same as that of the lower sprocket. The chain continuously bypasses the upper sprocket and the lower sprocket to complete the transmission of power from the lower sprocket to the upper sprocket, forming a stable closed-loop transmission system. The chain drives the connecting plate to move inside the guide plate. Correspondingly, the connecting plate drives the pickling cylinder to rotate around a circular ring through a hollow shaft arranged on its outer side. The whole is a vertical storage structure, extending in the vertical direction, using the height space of the equipment to accommodate pickled vegetables. Compared with the traditional horizontal or planar layout, it can achieve a larger storage and pickling capacity within a limited factory building area, especially suitable for scenarios with high land costs or tight factory building space, and can effectively improve the site utilization rate. Different types of vegetables can be placed in different pickling cylinders for pickling at the same time to avoid cross-contamination between different batches of vegetables, while in a conventional pickling pond, the mixed pickling of vegetables easily leads to flavor mixing or hygienic problems. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0014] Figure 1 It is a process flow chart of a multi-layer vegetable pickling process based on a flipping structure according to an embodiment of the present invention; Figure 2 It is a three-dimensional structure schematic diagram of an embodiment of the present invention; Figure 3 It is a cross-sectional structure schematic diagram of a pickling cylinder according to an embodiment of the present invention; Figure 4 It is an embodiment of the present invention Figure 3 The enlarged partial structure schematic diagram at A in the figure; Figure 5 It is a structure schematic diagram of an upright frame, a placement plate, a hydraulic cylinder and a support plate according to an embodiment of the present invention; Figure 6 It is a structure schematic diagram of a connecting plate, a chain, a hollow shaft and a guide plate according to an embodiment of the present invention; Figure 7 It is a separated structure schematic diagram of an upright frame, a guide plate and a pickling cylinder according to an embodiment of the present invention; Figure 8 It is a cross-sectional structure schematic diagram of a connecting ring according to an embodiment of the present invention; Figure 9 It is an embodiment of the present invention Figure 8 The enlarged partial structure schematic diagram at B in the figure; Figure 10 Schematic diagram of the separation structure of the hollow shaft, connecting rod, torsion spring and ratchet pawl in the embodiment of the present invention.

[0015] The reference numerals in the figure respectively represent: 1, rotating part; 11, vertical frame; 12, upper sprocket; 13, lower sprocket; 14, chain; 141, connecting plate; 15, hollow shaft; 16, placing plate; 161, hydraulic cylinder; 162, supporting plate; 163, anti-slip layer; 2, placing part; 21, pickling cylinder; 211, rotating groove; 212, ratchet groove; 213, tooth ring; 22, flipping member; 221, guide rail plate; 222, tooth belt; 223, connecting rod; 224, gear; 225, connecting ring; 2251, special-shaped groove; 226, ratchet pawl; 227, torsion spring; 228, limiting column; 23, sealing cover; 24, counterweight rod. Specific embodiments

[0016] In order to make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0017] The present invention will be further described below with reference to the embodiments. Embodiment:

[0018] Please refer to Figures 1 - 10 , the present invention provides a technical solution: a multi-layer vegetable pickling process based on a flipping structure, including: S1. Select fresh, moderately mature and firm-textured vegetables, and thoroughly wash the sediment, pesticide residues and impurities on the surface of the vegetables with flowing water; S2. Perform root trimming, peeling and leaf removal on the vegetables according to their characteristics, and air-dry to remove excess moisture; S3. Place the pre-treated vegetables and pickling solution into a vegetable pickling device, and use the diffusion and osmosis of the solution to evenly infiltrate the salt solution into the internal tissues of the vegetables; S4. Determine the flipping frequency and flipping angle according to the characteristics of the processed vegetables, and perform flipping on the pickled vegetables; S5. After pickling, the vegetables need to be washed to remove excess salt and impurities on the surface, and dehydrated for easy storage and packaging; Among them, the vegetable pickling device described in S3 includes a rotating part 1. The rotating part 1 includes a vertical frame 11 fixed on the upper surface of the base. On one side of the vertical frame 11, an upper sprocket 12 and a lower sprocket 13 are respectively rotatably connected. The upper sprocket 12 and the lower sprocket 13 are distributed in sequence from top to bottom. The outer surfaces of the upper sprocket 12 and the lower sprocket 13 are both meshed and connected with a chain 14. On the side of the chain 14 away from the vertical frame 11, connecting plates 141 are arranged at intervals. The outer surface of the connecting plate 141 away from the vertical frame 11 is fixedly connected with a hollow shaft 15; A placing part 2. The placing part 2 includes a pickling cylinder 21. The pickling cylinder 21 is rotatably connected with the circumferential outer surface of the hollow shaft 15 through a rotating groove 211 opened at its outer end. There are two vertical frames 11, and the two vertical frames 11 are symmetrically distributed at both ends of the pickling cylinder 21. On the side of the vertical frame 11 close to the chain 14, there is a turning piece 22 for driving the pickling cylinder 21 to rotate.

[0019] The turning piece 22 includes a guide rail plate 221 fixedly connected to the outer surface of the vertical frame 11. The inner wall surface of the guide rail plate 221 is fixedly connected with a toothed belt 222. The inner wall surface of the guide rail plate 221 is slidably connected with a connecting rod 223. A ratchet groove 212 is opened inside the pickling cylinder 21, and the inside of the ratchet groove 212 is communicated with the inside of the rotating groove 211. The outer end of the connecting rod 223 penetrates through the hollow shaft 15 and extends into the inside of the ratchet groove 212. The circumferential outer surface of the connecting rod 223 is fixedly connected with a gear 224 meshing with the outer surface of the toothed belt 222.

[0020] The outer end of the connecting rod 223 is fixedly connected with a connecting ring 225. An irregular-shaped groove 2251 is opened on the outer surface of the connecting ring 225. The irregular-shaped groove 2251 is rotatably connected with a pawl 226 that fits against the inner wall surface of the ratchet groove 212 through a shaft rod arranged on its inner wall surface.

[0021] A torsion spring 227 connected to the inside of the pawl 226 is sleeved on the circumferential outer surface of the shaft rod. The outer surface of the pawl 226 is fixedly connected with a limiting post 228 that fits against the inner wall of the irregular-shaped groove 2251.

[0022] A sealing cover 23 is hinged on the circumferential outer surface of the pickling cylinder 21. A counterweight rod 24 is fixedly connected to the circumferential outer surface of the pickling cylinder 21. A toothed ring 213 is fixedly connected to the outer end of the pickling cylinder 21.

[0023] A placing plate 16 is fixedly connected between the two vertical frames 11. The placing plate 16 is fixedly connected with a supporting plate 162 through a hydraulic cylinder 161 arranged on its upper surface. The upper surface of the supporting plate 162 is designed with an arc surface that fits against the outer surface of the pickling cylinder 21.

[0024] On one side of the upright frame 11 away from the pickling cylinder 21, there is a driving base for driving the lower sprocket 13 to rotate. The upper surface of the pallet 162 is provided with an anti-slip layer 163 to increase the friction force and avoid the situation that the pickling cylinder 21 keeps swaying due to unstable center of gravity during the feeding process.

[0025] The interior of the pickling cylinder 21 is designed in a conical shape, which is convenient for the pickled vegetables and waste liquid to be completely discharged, reducing material residue, lowering the risk of bacterial growth, and facilitating subsequent cleaning work.

[0026] In the prior art, the static pickling method is mostly used to pickle vegetables. Static immersion pickling is to place the vegetables and pickling liquid in a container and rely on natural osmosis to achieve the pickling process. This method has significant defects: on the one hand, due to the lack of effective mixing means, an obvious concentration gradient is formed in the container of the pickling liquid, resulting in uneven pickling effects between the upper and lower layers of the vegetables. The bottom vegetables are too salty due to being soaked in the high-concentration pickling liquid for a long time, while the upper-layer vegetables are insufficiently flavored; on the other hand, the pickling cycle is long, which greatly affects the production efficiency, and long-term static placement is prone to the risk of local mildew, making it difficult to meet the needs of large-scale industrial production.

[0027] When the output end of the driving seat rotates in reverse, while multiple pickling cylinders 21 move synchronously along the path of the guide rail plate 221, the pickling cylinder 21 also rotates around its axis to turn over the pickled vegetables inside the pickling cylinder 21. When the output end of the driving seat rotates in reverse, multiple pickling cylinders 21 rotate synchronously along the path of the guide rail plate 221, only performing revolution and not continuous rotation, for moving the loading and unloading positions of the pickling cylinder 21 (the loading position of the pickling cylinder 21 is at the top, and the unloading position of the pickling cylinder 21 is at the bottom). The process of loading vegetables: The position where the pickling cylinder 21 rotates to the topmost along with the chain 14 is the loading end. In the initial state, the pickling cylinder 21 between the two upright frames 11 is in an empty barrel state.

[0028] When the output end of the driving seat rotates forward, after the power source in the driving seat is started, it outputs rotational power, which is transmitted to the central axis of the lower sprocket 13 through the output shaft, causing the lower sprocket 13 to start rotating counterclockwise around its axis. When the lower sprocket 13 rotates, its teeth mesh with the links of the chain 14 one by one. By virtue of the thrust of the teeth on the links, the chain 14 is driven to move along the circumferential direction of the sprocket. Under the action of the pulling force, the chain 14 successively bypasses the lower sprocket 13 and the upper sprocket 12 to form a continuous circular motion path. The movement of the chain 14 drives the upper sprocket 12 to rotate counterclockwise synchronously through the meshing relationship. The rotation direction of the upper sprocket 12 is the same as that of the lower sprocket 13. The chain 14 continuously bypasses the upper sprocket 12 and the lower sprocket 13 to complete the power transmission from the lower sprocket 13 to the upper sprocket 12, forming a stable closed-loop transmission system. During the movement process, each link of the chain 14 meshes with and separates from the sprocket teeth in turn to ensure smooth power output.

[0029] The chain 14 is formed by connecting multiple chain links in series. Link connecting plates 141 are arranged at intervals on the surface of the chain links. Taking the chain 14 as the movement track, the path spacing between two adjacent connecting plates 141 is equal. A hollow shaft 15 is fixedly connected to the outer surface of the connecting plate 141. Both ends of the pickling cylinder 21 are rotationally connected to the outer surface of the hollow shaft 15 through the rotation grooves 211 opened. Driven by the connecting plate 141, the movement track of the multiple pickling cylinders 21 along with the chain 14 is a rectangular ring with an arc, that is, the overall movement track moves along the inside of the guide rail plate 221. The guide rail plate 221 is fixedly connected to the surface of the vertical frame 11 and is always in a static state. Correspondingly, the toothed belt 222 fixedly connected inside the guide rail plate 221 is also always in a static state. When components such as the connecting plate 141, the pickling cylinder 21, the hollow shaft 15, and the connecting rod 223 follow the chain 14 and move along the inside of the guide rail plate 221, and the whole rotates counterclockwise (the left side is the descending section and the right side is the ascending section), a relative movement is generated between the gear 224 fixedly connected to the outer circumference of the connecting rod 223 and the toothed belt 222. The teeth on the outer surface of the gear 224 are engaged with the tooth grooves on the outer surface of the toothed belt 222, and the gear 224 rotates counterclockwise.

[0030] In the initial state, the torsion spring 227 sleeved on the outer surface of the shaft rod drives the pawl 226 to expand outwards, so that the output end surface of the pawl 226 fits with the notch surface of the ratchet groove 212. Correspondingly, under the action of the torsion spring 227, the end of the limit post 228 far from the shaft rod rotates towards the axis of the connecting ring 225, and the outer surface of the limit post 228 fits with the inner wall side surface of the special-shaped groove 2251 to limit the maximum expansion degree of the pawl 226.

[0031] Gear 224 is fixedly connected to connecting rod 223 and connecting ring 225. Counterclockwise rotation of gear 224 drives connecting ring 225 to rotate counterclockwise within ratchet groove 212. Connecting ring 225 causes ratchet 226, located on its outer circumference, to rotate counterclockwise. The inclined surface of ratchet 226 slides against the inclined surface of ratchet groove 212. As the distance between the inclined surface and the center of connecting ring 225 gradually decreases, ratchet 226 rotates around the shaft, with its output end retracting toward the center of connecting ring 225. During the movement of curing cylinder 21, since two counterweight rods 24 are fixedly attached to either side of the bottom of the curing cylinder 21 in its initial state, the center of gravity of the curing cylinder 21 is close to one side of the counterweight rods 24 when the cylinder is empty. The curing drum 21 is supported by hollow shafts 15 at both ends. As the chain 14 operates, the drum 21 automatically adjusts its center of gravity, positioning the counterweight rods 24 at the bottom of the drum 21 and parallel to the base. Supported by the hollow shafts 15, the drum 21 experiences minimal friction when rotating on the outer surface of the hollow shafts 15, providing a certain degree of damping. Once both counterweight rods 24 are at the bottom, angling the drum 21 vertically downward, the drum 21 maintains this position and moves along the path of the guide plate 221.

[0032] The plane between the axis of the pickling cylinder 21 and the center of the sealing cover 23 is perpendicular to the plane of the two counterweight rods 24. Therefore, when the two counterweight rods 24 are at the bottom of the pickling cylinder 21 and the plane they lie on is horizontal, the sealing cover 23 of the pickling cylinder 21 is directly above, making it easy to load and place vegetables.

[0033] The loading end (i.e., the top of the stand 11) is equipped with a conveyor device for loading vegetables. When a pickling cylinder 21 reaches the top, a hydraulic cylinder 161 on the upper surface of the placement plate 16 is activated. A support plate 162, which conforms to the outer surface of the pickling cylinder 21, is fixedly connected to the output end of the hydraulic cylinder 161. Under the action of the hydraulic cylinder 161, the anti-slip layer 163 on the curved upper surface of the support plate 162 contacts the lower surface of the pickling cylinder 21 at the top, supporting the pickling cylinder 21 and ensuring its stability. This prevents the pickling cylinder 21 from rocking back and forth during the loading process due to its unstable center of gravity. The sealing cover 23 opens, and the external conveyor device pours the vegetables and pickling liquid into the top pickling cylinder 21 for pickling.

[0034] Process of pickling vegetables: When the materials are loaded into the multiple pickling cylinders 21, Specifically, the rotation time, flipping frequency, and flipping degree for turning over can be selected according to the vegetable variety. Flipping is a key step in vegetable pickling to adjust conditions such as osmosis, fermentation, and temperature through physical turning. The core is to break the non-uniformity of static stacking to ensure the safety, efficiency, and consistent flavor of the pickling process. Vegetable cells remain intact at the initial stage of pickling. When flipping the vegetables, the cells can be slightly squeezed, causing the cell walls to break, accelerating the release of water and sugar inside the cells, and at the same time promoting the penetration of salt and spice components in the pickling liquid. Excessive stacking of vegetables will hinder the flow of the pickling liquid. Flipping can loosen the stacking structure, form a liquid circulation channel, and prevent the bottom vegetables from becoming mushy and spoiled due to long-term immersion in high-concentration juice.

[0035] After the power source in the driving seat is started, the output end rotates in reverse, outputs rotational power, and is transmitted through the output shaft to the central axis of the lower sprocket 13, causing the lower sprocket 13 to start rotating clockwise around its axis. When the lower sprocket 13 rotates, its teeth mesh with the links of the chain 14 one by one. Relying on the thrust of the teeth on the links, the chain 14 is driven to move along the circumferential direction of the sprocket. Under the action of the pulling force, the chain 14 successively bypasses the lower sprocket 13 and the upper sprocket 12 to form a continuous circular motion path. The movement of the chain 14 drives the upper sprocket 12 to rotate clockwise synchronously through the meshing relationship. The rotation direction of the upper sprocket 12 is the same as that of the lower sprocket 13. The chain 14 continuously bypasses the upper sprocket 12 and the lower sprocket 13 to complete the power transmission from the lower sprocket 13 to the upper sprocket 12, forming a stable closed-loop drive system. During the movement process, each link of the chain 14 meshes with and separates from the sprocket teeth in turn to ensure smooth power output.

[0036] The chain 14 drives the connecting plate 141 to move inside the guide rail plate 221. Correspondingly, the connecting plate 141 drives the pickling cylinder 21 to rotate around a circular ring through the hollow shaft 15 arranged on its outer side, causing the pickling cylinder 21 on the left to gradually move upward and the pickling cylinder 21 on the right to gradually move downward. The gear 224 fixed on the outer surface of the circumferential of the connecting rod 223 has a relative movement with the toothed belt 222. The teeth on the outer surface of the gear 224 mesh with the tooth grooves on the outer surface of the toothed belt 222, and the gear 224 rotates clockwise.

[0037] The gear 224 is fixedly connected to the connecting rod 223 and the connecting ring 225. When the gear 224 rotates clockwise, it will drive the connecting ring 225 to rotate clockwise inside the ratchet groove 212. The connecting ring 225 drives the pawl 226 arranged on its circumferential outer surface to rotate clockwise. The output end of the pawl 226 fits against the inner wall of the tooth groove of the ratchet groove 212. When the connecting ring 225 is driven to rotate clockwise by an external force, the hook end of the pawl 226 contacts the locking surface of the ratchet groove 212, driving the pickling cylinder 21 to rotate clockwise synchronously, realizing power linkage, so that the pickling cylinder 21 rotates clockwise on the outer surface of the hollow shaft 15 through the rotating grooves 211 provided at both ends thereof. In this process, only by driving the lower sprocket 13 to reverse can the synchronous turning of multiple pickling cylinders 21 be realized. While multiple pickling cylinders 21 revolve along the path of the guide rail plate 221, they also rotate on their own axes. Among them, the driving seat can adjust the angle of a single turn and the frequency of turning according to specific requirements. The driving seat has a self-locking function and can keep the chain 14 stationary when the movement stops, ensuring the stability during the normal pickling process of vegetables.

[0038] A chute is provided on the upper surface of the base. When discharging is required, the discharging carrier cart (with racks provided on both sides) is pushed into the chute on the upper surface of the base. When the discharging carrier cart is pushed in, its accommodating cavity is located below the lower surface of the pickling cylinder 21 at the bottom. As it continues to enter, the racks on both sides enter the space between the vertical frame 11 and the outer end of the pickling cylinder 21. The teeth on the upper surface of the rack mesh with the outer surface of the toothed ring 213, and during the forward movement, the pickling cylinder 21 is driven to rotate around the hollow shaft 15 (the gear 224, the connecting rod 223, and the connecting ring 225 all remain stationary, and the pickling cylinder 21 rotates clockwise), so that the sealing cover 23 on the outer surface of the pickling cylinder 21 rotates from the top position to the position where the sealing cover 23 is located at the bottom of the pickling cylinder 21, and the sealing cover 23 is in an open state. Under the action of gravity, the pickled vegetables are naturally discharged and enter the discharging carrier cart.

[0039] In summary, the pickled vegetable equipment has the following advantages: Advantage 1: Multiple pickling cylinders 21 on the outer surface of the vertical frame 11 are driven by a vertically arranged chain 14, which is a vertical storage structure and extends in the vertical direction. The height space of the equipment is utilized to accommodate vegetables. Compared with traditional horizontal or planar layouts, it can achieve a larger storage and pickling capacity within a limited factory building area, especially suitable for scenarios with high land costs or tight factory building space, and can effectively improve the site utilization rate.

[0040] Advantage 2: When the output end of the driving seat rotates forward, the pickling cylinder 21 only revolves along the guide rail plate 221, which is used to accurately position the loading and unloading positions (loading at the top and unloading at the bottom), avoiding self-rotation from interfering with the material handling; when the output end of the driving seat rotates in reverse, the pickling cylinder 21 revolves and rotates synchronously, realizing automatic turning over without manual intervention, improving the pickling effect of vegetables. When the pickling cylinder 21 rotates, the vegetable cells are slightly squeezed, accelerating the release of moisture and sugar inside the cells, and at the same time promoting the penetration of salt and spice components in the pickling liquid, improving the pickling effect. At the same time, it can loosen the stacked structure of vegetables, form a liquid circulation channel, and prevent the bottom vegetables from becoming mushy and deteriorating due to long-term immersion in high-concentration juice.

[0041] Advantage 3: When loading, the two counterweight rods 24 at the bottom of the pickling cylinder 21 can make the center of gravity of the pickling cylinder 21 in the empty cylinder state vertically downward, ensuring that the position of the sealing cover 23 is always upward during loading, the opening is vertically upward during loading, and the hydraulic cylinder 161 and the pallet 162 are used to assist it to maintain stability, avoiding the pickling cylinder 21 from freely rotating around the hollow shaft 15 during loading, and automatically filling the vegetables and pickling liquid into the pickling cylinder 21, improving production efficiency.

[0042] Advantage 4: When the unloading carrier cart is pushed in, through the engagement of the rack and the toothed ring 213, the pickling cylinder 21 is driven to rotate, so that the sealing cover 23 rotates to the bottom, and its opening faces downward. Under the action of gravity, the pickled vegetables are naturally unloaded. The unloading process is simple and fast, reducing manual operation and improving production efficiency.

[0043] Advantage 5: This vegetable pickling equipment can pickle different types of vegetables in different pickling cylinders 21 during the same period, avoiding cross-contamination between different batches of vegetables, while in a conventional pickling pool, the mixed pickling of vegetables easily leads to flavor cross-taste or hygiene problems.

[0044] Advantage 6: The inside of the pickling cylinder 21 is designed in a conical shape, which is convenient for the pickled vegetables and waste liquid to be completely discharged, reducing material residue and the risk of bacterial growth. At the same time, it is convenient for subsequent cleaning work, and the cleaning and maintenance are more convenient.

[0045] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A multi-layer vegetable pickling process based on a flipping structure, characterized in that Including: S1. Select fresh, moderately mature, and firm-textured vegetables, and thoroughly wash the sediment, pesticide residues, and impurities on the surface of the vegetables with flowing water; S2. Perform root trimming, peeling, and leaf removal on the vegetables according to their characteristics, and air-dry to remove excess moisture; S3. Place the pre-treated vegetables and pickling solution into a vegetable pickling device, and use the diffusion and osmosis of the solution to evenly infiltrate the salt solution into the internal tissues of the vegetables; S4. Determine the turning frequency and turning angle according to the characteristics of the processed vegetables, and turn the pickled vegetables; S5. After pickling, the vegetables need to be washed to remove excess salt and impurities on the surface, and dehydrated for easy storage and packaging; Among them, the vegetable pickling device described in S3 includes a rotating part (1), and the rotating part (1) includes a vertical frame (11) fixed on the upper surface of the base. On one side of the vertical frame (11), an upper sprocket (12) and a lower sprocket (13) are respectively rotatably connected. The upper sprocket (12) and the lower sprocket (13) are distributed from top to bottom in sequence. The outer surfaces of the upper sprocket (12) and the lower sprocket (13) are both meshed with a chain (14). On the side of the chain (14) away from the vertical frame (11), connecting plates (141) are arranged at intervals. The outer surface of the connecting plate (141) away from the vertical frame (11) is fixedly connected with a hollow shaft (15); A placing part (2), the placing part (2) includes a pickling cylinder (21). The pickling cylinder (21) is rotatably connected to the circumferential outer surface of the hollow shaft (15) through a rotating groove (211) opened at its outer end. There are two vertical frames (11), and the two vertical frames (11) are symmetrically distributed at both ends of the pickling cylinder (21). On the side of the vertical frame (11) close to the chain (14), there is a turning member (22) for driving the pickling cylinder (21) to rotate.

2. The multi-layer vegetable pickling process based on a flipping structure according to claim 1, characterized in that: The turning member (22) includes a guide rail plate (221) fixedly connected to the outer surface of the vertical frame (11). A toothed belt (222) is fixedly connected to the inner wall surface of the guide rail plate (221). A connecting rod (223) is slidably connected to the inner wall surface of the guide rail plate (221). A ratchet groove (212) is opened inside the pickling cylinder (21), and the inside of the ratchet groove (212) is communicated with the inside of the rotating groove (211). The outer end of the connecting rod (223) penetrates through the hollow shaft (15) and extends into the inside of the ratchet groove (212). A gear (224) meshing with the outer surface of the toothed belt (222) is fixedly connected to the circumferential outer surface of the connecting rod (223).

3. A multi-layer vegetable pickling process based on a flipping structure according to claim 2, characterized in that: The outer end of the connecting rod (223) is fixedly connected with a connecting ring (225). An irregular groove (2251) is opened on the outer surface of the connecting ring (225). An arrester pawl (226) fitting with the inner wall surface of the ratchet groove (212) is rotatably connected to the irregular groove (2251) through a shaft rod arranged on its inner wall surface.

4. A multi-layer vegetable pickling process based on a flipping structure according to claim 3, characterized in that: A torsion spring (227) connected to the inside of the pawl (226) is sleeved on the circumferential outer surface of the shaft rod, and a limiting post (228) that fits against the inner wall of the special-shaped groove (2251) is fixedly connected to the outer surface of the pawl (226).

5. A multi-layer vegetable pickling process based on a flipping structure according to claim 2, characterized in that: A sealing cover (23) is hinged on the circumferential outer surface of the pickling cylinder (21), a counterweight rod (24) is fixedly connected to the circumferential outer surface of the pickling cylinder (21), and a toothed ring (213) is fixedly connected to the outer end of the pickling cylinder (21).

6. A multi-layer vegetable pickling process based on a flipping structure according to claim 1, characterized in that: A placing plate (16) is fixedly connected between the two upright frames (11). The placing plate (16) is fixedly connected to a supporting plate (162) through a hydraulic cylinder (161) arranged on its upper surface. The upper surface of the supporting plate (162) is designed with an arc surface that fits against the outer surface of the pickling cylinder (21).

7. A multi-layer vegetable pickling process based on a flipping structure according to claim 6, characterized in that: A driving base for driving the lower sprocket (13) to rotate is arranged on one side of the upright frame (11) away from the pickling cylinder (21), and an anti-slip layer (163) is arranged on the upper surface of the supporting plate (162).

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