A tumbling machine with adjustable positive and negative pressure

Abstract

The present invention discloses a positive and negative pressure adjustable tumbling and kneading machine and a hot braising process thereof, comprising a frame, a support, a tumbling and kneading barrel, a rotary drive mechanism, an angle adjustment mechanism, and an air pressure adjustment component, wherein the tumbling and kneading barrel is arranged on the support, and the rear end of the tumbling and kneading barrel is connected to the output shaft of the rotary drive mechanism, the rotary drive mechanism is used to drive the tumbling and kneading barrel to rotate, the support is connected to the frame through the angle adjustment mechanism, the angle adjustment mechanism is used to adjust the angle of the tumbling and kneading barrel, and the air pressure adjustment component is used to adjust the air pressure inside the tumbling and kneading barrel, by forming a high-temperature braising environment for braising soup under a negative pressure state, and at the same time keeping the heat through the hot water circulation of the barrel body, and then forming a stewing method similar to a pressure cooker through a slight positive pressure, such a process can not only shorten the braising time and improve the production efficiency, but also enable the product to better absorb the braising soup, thereby making it more flavorful and improving the net yield.

Description

Technical Field

[0001] The invention relates to the technical field of food processing, in particular to a tumbling machine with adjustable positive and negative pressures and a hot brine process thereof. Background Art

[0002] In the traditional food processing field, stewing is a common cooking process used to make various meat, poultry, bean products and other foods. The processing methods of stewed products are generally divided into two methods: low-temperature stewing and high-temperature stewing.

[0003] The low-temperature braising method uses a slow-cooking and soaking method to soak the food ingredients in the braising soup for a long time, usually for 3 to 5 hours, and sometimes even overnight. This long soaking helps to improve the net yield and flavor, so that the same raw materials can produce more finished products, thereby reducing costs. However, the disadvantage of this method is that the braising time is too long, the efficiency is low, and it is not suitable for large-scale or rapid production needs.

[0004] The traditional high-temperature braising method is the opposite. It speeds up the process by increasing the temperature of the braising soup and shortening the braising time, so that the product can be quickly taken out of the pot. This method is suitable for processing small items, but the net yield is relatively low because high temperature may cause some nutrients in the food raw materials to be lost, and it may also affect the taste and flavor of the food.

[0005] Therefore, it is necessary to design a tumbling machine with adjustable positive and negative pressure and its hot brine process to overcome the above technical problems. Summary of the invention

[0006] In order to solve the above technical problems, the present invention relates to a positive and negative pressure adjustable tumbling machine and a hot brine process thereof. The structure is simple and reliable, effectively solves the above technical problems, and is suitable for popularization and use. In order to achieve the above purpose, the present invention is implemented by the following technical solutions:

[0007] A tumbling and kneading machine with adjustable positive and negative pressures comprises a frame, a support, a tumbling and kneading barrel, a rotary drive mechanism, an angle adjustment mechanism, and an air pressure adjustment component. The tumbling and kneading barrel is arranged on the support, and the rear end of the tumbling and kneading barrel is connected to the output shaft of the rotary drive mechanism. The rotary drive mechanism is used to drive the tumbling and kneading barrel to rotate. The support is connected to the frame via an angle adjustment mechanism. The angle adjustment mechanism is used to adjust the angle of the tumbling and kneading barrel. The air pressure adjustment component is used to adjust the air pressure inside the tumbling and kneading barrel.

[0008] On the basis of the above scheme and as a preferred scheme of the above scheme: an openable and closable barrel cover is arranged on the front side of the tumbling barrel, the air pressure regulating assembly comprises a support tube, an outer conduit, an inner conduit, a suction tube, a first air exhaust pipe, a second air exhaust pipe, and an inflation tube, one end of the support tube is fixedly connected to the center of the barrel cover, the outer conduit passes through the inner hole of the support tube, the inner conduit is coaxially arranged with the outer conduit and is located on the inner side of the outer conduit, an air exhaust channel is formed between the inner conduit and the outer conduit, one end of the outer conduit is connected to the second air exhaust pipe, the second air exhaust pipe and the outer conduit are perpendicular to each other, and the second The inner cavity of the tumbling barrel is connected with the air suction channel, the other end of the outer conduit is connected with the first air suction pipe, the first air suction pipe is located on the outside of the tumbling barrel and is perpendicular to the outer conduit, the first air suction pipe is provided with a vacuum switch valve, the first air suction pipe is connected to the vacuum system, one end of the inner conduit is connected with the inner cavity of the tumbling barrel, the other end of the inner conduit is connected with the suction pipe and the inflation pipe through a three-way pipe, the inflation pipe is provided with a positive pressure inflation switch valve, the inflation pipe is connected to the air supply system, the suction pipe is provided with a feeding switch valve, and the suction pipe is connected to the feeding system.

[0009] On the basis of the above scheme and as a preferred scheme of the above scheme: the rotating drive mechanism includes a motor, a transmission shaft, and a bearing seat, the rear baffle of the tumbling barrel is provided with a support plate, the output shaft of the motor is fixedly connected to one end of the transmission shaft, and the other end of the transmission shaft is provided with a positioning plate, the positioning plate and the support plate are fixedly connected by a plurality of bolts evenly spaced along the circumferential direction, the bearing seat is fixed on the support, and the transmission shaft rotates in cooperation with the bearing in the bearing seat.

[0010] On the basis of the above scheme and as a preferred scheme of the above scheme: the angle adjustment mechanism includes a cylinder, two groups of cylinders are symmetrically arranged on both sides of the frame, the front ends of the supports are rotatably connected to the frame through support shafts, the cylinder bodies of the cylinders are rotatably connected to the hinged seats on the frame, and the piston rods of the cylinders are rotatably connected to the hinged seats at the rear of the supports, and the extension and retraction of the piston rods of the cylinders can cause the supports to rotate around the axial direction of the support shaft.

[0011] On the basis of the above scheme and as a preferred scheme of the above scheme: it also includes a heat preservation mechanism, the heat preservation mechanism includes a heat preservation sleeve, a guide cover, a sleeve, a first water pipe, and a second water pipe. The heat preservation sleeve cover is arranged on the outer side of the barrel wall of the tumbling barrel, and a heat preservation chamber is formed between the heat preservation sleeve and the tumbling barrel. The heat preservation chamber is used for circulating hot water. The sleeve is arranged on the outer side of the transmission shaft, and sealing rings are respectively arranged at both ends of the sleeve. The transmission shaft is provided with a first water passage and a second water passage respectively at the upper and lower ends. The two first water pipes are respectively connected to the first water passage and the second water passage. The first water pipe is used to connect with the mold temperature controller, and the two second water pipes are respectively connected to the first water passage and the second water passage. The other end of the second water pipe is connected to the heat preservation chamber through the guide cover.

[0012] On the basis of the above scheme and as a preferred scheme of the above scheme: it also includes a rotating support assembly, the rotating support assembly includes a roller and a fixed seat, the two fixed seats are symmetrically installed at the front end of the support, the roller is arranged on the inner side of the fixed seat, the roller is rotatably connected to the fixed seat, and the roller is in contact with the rolling and kneading barrel.

[0013] On the basis of the above scheme and as a preferred scheme of the above scheme: an annular inflatable sealing ring is installed on the inner side of the barrel cover, and an annular handle is provided on the outer side of the barrel cover.

[0014] On the basis of the above scheme and as a preferred scheme of the above scheme: a safety valve is also provided on the barrel cover.

[0015] On the basis of the above scheme and as a preferred scheme of the above scheme: it also includes an automatic lid opening component, which includes a support rod, a mounting plate, a rotating motor, and an adjusting rod. The support rod is fixedly mounted on the front side of the support, the mounting plate is arranged on the top end of the support rod, the rotating motor is arranged on the mounting plate, the output end of the rotating motor is connected to the adjusting rod, the adjusting rod is fixedly connected to the support tube through a positioning connecting rod, and the rotating motor is used to drive the barrel cover to rotate.

[0016] The present invention also designs a hot brine method of a tumbling machine with adjustable positive and negative pressures, comprising the following steps:

[0017] S1, loading, opening the barrel cover by rotating the motor to expose the opening of the tumbling barrel, and then putting the food materials to be stewed into the tumbling barrel;

[0018] S2, vacuuming, opening the vacuum switch valve to perform vacuuming operation, so that the inside of the tumbling and kneading barrel reaches a preset negative pressure value, then stopping the vacuuming operation and closing the vacuum switch valve to maintain the negative pressure inside the tumbling and kneading barrel;

[0019] S3, feeding auxiliary materials, opening the feed switch valve so that the auxiliary materials of the braising soup at a preset temperature are sucked into the tumbling and kneading barrel, and then closing the feed switch valve, wherein the preset temperature of the auxiliary materials of the braising soup corresponds to the preset negative pressure value inside the tumbling and kneading barrel so that the auxiliary materials of the braising soup can be boiled and vaporized after entering the tumbling and kneading barrel;

[0020] S4, pressurizing, after the air pressure inside the tumbling and kneading barrel is balanced, the positive pressure inflation switch valve is opened, clean compressed air is filled into the tumbling and kneading barrel through the inflation pipe until the preset positive pressure value is reached, and then the positive pressure inflation switch valve is closed;

[0021] S5, start rolling and kneading, adjust the rolling and kneading barrel to an inclined state through the angle adjustment mechanism, and drive the rolling and kneading barrel to start rotating through the rotation drive mechanism;

[0022] S6, heat preservation, controlling the temperature of the hot water through the mold temperature controller and circulating the hot water in the heat preservation chamber of the tumbling barrel and the heat preservation sleeve;

[0023] S7, unloading, after the braising is completed, the tumbling and kneading barrel is reset and the barrel cover is opened for unloading.

[0024] Compared with the prior art, the present invention has the following outstanding and beneficial technical effects: in order to overcome the shortcomings of the conventional braising process, the present invention improves the conventional tumbling machine and develops a new braising process, which utilizes a tumbling machine with adjustable positive and negative pressure for braising, forms a high-temperature braising environment for the braising soup under a negative pressure state, and simultaneously keeps the heat through the hot water circulation in the barrel body, and then forms a stewing method similar to a pressure cooker through a slight positive pressure. Such a process can not only shorten the braising time and improve production efficiency, but also enable the product to better absorb the braising soup, thereby making it more flavorful and improving the net yield.

[0025] The present invention improves the equipment and the braising process. By accurately controlling the pressure state of the tumbling and kneading barrel, the temperature of the braising soup, the rotation and the tilt angle of the tumbling and kneading barrel, etc., the food raw materials can be evenly heated and flavored, while the braising efficiency and product quality are improved. This method is particularly suitable for food processing enterprises that require rapid production and high efficiency, and can also meet consumers' high requirements for food taste and flavor, thereby improving the competitiveness of products. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the equipment;

[0027] Figure 2 It is a three-dimensional schematic diagram of the barrel cover structure;

[0028] Figure 3 1. It is a schematic diagram of the angle adjustment mechanism of the rolling and kneading barrel;

[0029] Figure 4 It is a heat preservation mechanism;

[0030] Figure 5 is a schematic diagram of the gas pressure regulating mechanism;

[0031] Figure 6 It is a schematic diagram of the boiling point of water in a vacuum state. DETAILED DESCRIPTION

[0032] In order to make the objectives, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments. However, the specific implementation methods and embodiments described below are for illustrative purposes only and are not intended to limit the present invention.

[0033] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate directions or positional relationships based on the attached Figure 1 The directions or positional relationships shown are only for the convenience of describing the present invention, and are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the present invention.

[0034] In the description of this application, the terms "first", "second", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.

[0035] In order to solve the above technical problems, Figure 1-6 As shown, the present invention designs a positive and negative pressure adjustable tumbling and kneading machine, including a frame 1, a support 2, a tumbling and kneading barrel 3, a rotation drive mechanism 4, an angle adjustment mechanism 5, and an air pressure adjustment component 6. The tumbling and kneading barrel 3 is arranged on the support 2, and the rear end of the tumbling and kneading barrel 3 is connected to the output shaft of the rotation drive mechanism 4. The rotation drive mechanism 4 is used to drive the tumbling and kneading barrel 3 to rotate. The support 2 is connected to the frame 1 through the angle adjustment mechanism 5. The angle adjustment mechanism 5 is used to adjust the angle of the tumbling and kneading barrel 3. The air pressure adjustment component 6 is used to adjust the internal air pressure of the tumbling and kneading barrel 3.

[0036] Specifically, an openable and closable barrel cover 7 is provided on the front side of the tumbling barrel 3, and an annular inflatable sealing ring is installed on the inner side of the barrel cover 7. The sealing ring is expanded by inflation and is in close contact with the sealing surface to form an effective seal. It is suitable for pipeline ports and valves that are frequently opened and closed, reducing maintenance hours and installation difficulty. An annular handle is provided on the outer side of the barrel cover 7. In addition, the barrel cover 7 is also connected to an automatic lid opening component 8, and the automatic lid opening component 8 includes a support rod 81, a mounting plate 82, a rotating motor 83, and an adjusting rod 84. The support rod 81 is fixedly installed on the front side of the support 2, the mounting plate 82 is arranged on the top of the support rod 81, the rotating motor 83 is arranged on the mounting plate 82, and the output end of the rotating motor 83 is connected to the adjusting rod 84. The adjusting rod 84 is fixedly connected to the supporting tube 61 through the positioning connecting rod, and the rotating motor 83 is used to drive the barrel cover 7 to rotate. Through the design of the automatic opening cover assembly 8, the automatic opening and closing of the barrel cover 7 can be controlled by the electric rotation of the barrel cover 7, without manual operation, which greatly improves the convenience and efficiency of operation. The automatic opening cover assembly 8 can ensure that the operator controls the barrel cover 7 within a safe distance, reduce operating risks, and avoid burns caused by high-temperature steam or brine splashing. The annular inflatable sealing ring installed on the inside of the barrel cover 7 can form a good seal when the barrel cover 7 is closed, prevent steam leakage during the braising process, ensure that the required negative pressure or slightly positive pressure is maintained in the barrel, and also prevent outside air from entering to ensure the stability of the braising environment.

[0037] Furthermore, the air pressure regulating assembly 6 includes a support tube 61, an outer conduit 62, an inner conduit 63, a suction tube 64, a first air extraction tube 65, a second air extraction tube 66, and an air charging tube 67. One end of the support tube 61 is fixedly connected to the center of the barrel cover 7. The outer conduit 62 passes through the inner hole of the support tube 61. The inner conduit 63 is coaxially arranged with the outer conduit 62 and is located on the inner side of the outer conduit 62. An air extraction channel is formed between the inner conduit 63 and the outer conduit 62. One end of the outer conduit 62 is connected to the second air extraction tube 66. The second air extraction tube 66 and the outer conduit 62 are perpendicular to each other. The inner cavity of the tumbling and kneading barrel 3 is connected to the air extraction channel by the second air extraction pipe 66, and the other end of the outer guide tube 62 is connected to the first air extraction pipe 65. The first air extraction pipe 65 is located on the outside of the tumbling and kneading barrel 3 and is perpendicular to the outer guide tube 62. The first air extraction pipe 65 is provided with a vacuum switch valve. The first air extraction pipe 65 is connected to the vacuum system. The vacuum system mainly includes a vacuum pump. The vacuum pump can quickly extract the air in the tumbling and kneading barrel 3 to form a negative pressure environment, and can accurately control the air pressure in the tumbling and kneading barrel 3 to meet the specific requirements of different food processing processes for air pressure and ensure the quality of food processing.

[0038] One end of the inner conduit 63 is communicated with the inner cavity of the tumbling barrel 3, and the other end of the inner conduit 63 is connected to the suction pipe 64 and the inflation pipe 67 through a three-way pipe. The inflation pipe 67 is provided with a positive pressure inflation switch valve, and the inflation pipe 67 is connected to the air supply system. The suction pipe 64 is provided with a feed switch valve, and the suction pipe 64 is connected to the feed system. The vacuum switch valve equipped with the first exhaust pipe 65 and the positive pressure inflation switch valve on the inflation pipe 67 allow the operator to accurately control the pressure in the barrel according to different stages of the braising process, thereby optimizing the braising effect. The design of the outer conduit 62 and the inner conduit 63 , realizing the gas exchange inside and outside the braising barrel, the outer conduit 62 connects the first exhaust pipe 65 and the second exhaust pipe 66, so that the required negative pressure state can be quickly reached during the braising process, and the inflation pipe 67 is used to fill clean compressed air when needed to form a slightly positive pressure environment. At the same time, the negative pressure characteristics can also be used to realize the automatic suction of braising soup and food raw materials, reducing manual operation, improving production efficiency and convenience of operation. The precisely controlled air pressure environment helps to improve the quality of braising food and ensure that the food raw materials are evenly heated and absorb the braising soup during the braising process, thereby improving the net rate and flavor of the product.

[0039] In addition, a safety valve 68 is also provided on the barrel cover 7. The safety valve 68 provided on the barrel cover 7 provides additional safety protection for the tumbling barrel 3 to prevent excessive pressure caused by operating errors or system failures, thereby ensuring the safety of the operation process.

[0040] It is worth mentioning that the air pressure regulating assembly 6 integrates necessary elements such as the support tube 61, inner and outer ducts 62, the suction tube 64, the exhaust pipe and the inflation pipe 67 to form a compact unit, which reduces space occupancy and simplifies the pipeline layout. The inner duct 63 is coaxially arranged with the outer duct 62. This design not only saves space, but also makes the layout of the exhaust channel more reasonable, which is convenient for the suction of braising soup and the extraction of gas in the barrel. The vertical connection between the second exhaust pipe 66 and the outer duct 62, and the vertical docking of the first exhaust pipe 65 and the outer duct 62, this design optimizes the gas flow path, reduces the resistance of gas flow, and improves the efficiency of exhaust and inflation. Due to the simple structure, the manufacturing and maintenance costs are relatively low. Moreover, due to its high efficiency, the braising process can be realized in a shorter time, thereby improving production efficiency and reducing the overall production cost.

[0041] In the present embodiment, it is further preferred that the rotary drive mechanism 4 comprises a motor 41, a transmission shaft 42 and a bearing seat 43, a support plate 44 is provided on the rear baffle of the tumbling barrel 3, the output shaft of the motor is fixedly connected to one end of the transmission shaft 42, and a positioning plate 45 is provided on the other end of the transmission shaft 42, the positioning plate 45 and the support plate 44 are fixedly connected by a plurality of bolts evenly spaced along the circumferential direction, the direct connection between the motor and the transmission shaft 42 ensures the effective transmission of power, reduces energy loss, and improves the working efficiency of the tumbling machine, the bolted fixed connection evenly arranged between the positioning plate 45 and the support plate 44 ensures the stability of the transmission shaft 42, reduces vibration and swing during rotation, thereby ensuring the uniformity and stability of the rotation of the tumbling barrel 3, the scheme adopts a simple mechanical connection method, is easy to assemble and maintain, and reduces manufacturing and operating costs, the bearing seat 43 is fixed on the support 2, the transmission shaft 42 is rotatably matched with the bearing in the bearing seat 43, the bearing in the bearing seat 43 provides stable support for the transmission shaft 42, ensures the long-term stable operation of the transmission shaft 42, and extends the service life of the equipment.

[0042] It is further preferred in this embodiment that the angle adjustment mechanism 5 includes a cylinder 51, and two groups of cylinders 51 are symmetrically arranged on both sides of the frame 1. The front ends of the support 2 are rotatably connected to the frame 1 through support shafts 52. The cylinder body of the cylinder 51 is rotatably connected to the hinge seat on the frame 1, and the piston rod of the cylinder 51 is rotatably connected to the hinge seat at the rear of the support 2. The extension and retraction of the piston rod of the cylinder 51 can make the support 2 rotate around the axial direction of the support shaft 52. The use of the cylinder 51 as the adjustment mechanism simplifies the traditional complex gear or chain drive system and reduces the number of mechanical components. The number of tumbling and kneading drums 3 is reduced, which reduces the failure rate and maintenance cost. The inclination angle of the tumbling and kneading drum 3 can be accurately controlled through the telescopic movement of the cylinder 51 to adapt to different processing requirements and process flows. By adjusting the inclination angle of the tumbling and kneading drum 3, the rolling mode and force conditions of the food raw materials in the drum can be changed, thereby improving the massage effect of the food and making it absorb the marinade or pickling liquid more evenly. Different food raw materials may require different tumbling and kneading angles to achieve the best processing effect. The angle adjustment mechanism 5 allows the operator to make adjustments according to the specific product characteristics and processing requirements to adapt to diverse processing needs.

[0043] It is further preferred in the present embodiment that it also includes an insulation mechanism 9, which includes an insulation sleeve 91, a guide cover 92, a sleeve 93, a first water conduit 94, and a second water conduit 95. The insulation sleeve 91 is arranged on the outer side of the barrel wall of the tumbling barrel 3, and an insulation chamber is formed between the insulation sleeve 91 and the tumbling barrel 3. The insulation chamber is used to circulate hot water to accurately control the temperature in the barrel, thereby providing a suitable temperature control environment for food processing. The design of the insulation sleeve 91 can reduce heat loss during the processing, improve energy efficiency, and save energy. This is particularly important for food processing that requires long-term insulation. Uniform temperature control helps to improve the quality of food processing, ensure that the food is heated evenly during the tumbling process, and improve the taste and texture of the final product. The sleeve 93 is sleeved on the outside of the transmission shaft 42, and sealing rings are respectively provided at both ends of the sleeve 93 to ensure the sealing effect and prevent liquid leakage. The transmission shaft 42 is provided with a first water passage 96 and a second water passage 97 respectively at the upper and lower parts. Two first water pipes 94 are respectively connected to the first water passage 96 and the second water passage 97. The first water pipe 94 is used to connect with the mold temperature controller, and the two second water pipes 95 are respectively connected to the first water passage 96 and the second water passage 97. The other end of the second water pipe 95 is connected to the heat preservation chamber through the guide cover 92. When working, high-temperature water can be introduced through the water channel above and low-temperature water can be exported through the water channel below, so that high-temperature hot water can be realized in The external circulation of the three walls of the tumbling barrel keeps the product warm during the entire braising process. The water channel is directly integrated into the design of the drive shaft, which not only saves space but also improves the heat exchange efficiency. This design usually means less heat loss and faster temperature response time. This design ensures uniform temperature throughout the barrel and avoids local overheating or overcooling problems, which is crucial to ensuring the consistency of product quality during food processing. The mold temperature controller is equipped with an automated control system that can automatically adjust heating and cooling according to the preset temperature, reducing the need for manual monitoring and adjustment, and improving the convenience and safety of operation. Precise temperature control helps to increase product yield and improve the overall quality of the product.

[0044] Taking into account the rotation stability of the tumbling and kneading barrel 3, the present device also includes a rotating support assembly 10, which includes a roller 1001 and a fixed seat 1002. The two fixed seats 1002 are symmetrically installed at the front end of the support 2, and the roller 1001 is arranged on the inner side of the fixed seat 1002. The roller 1001 is rotatably connected to the fixed seat 1002, and the roller 1001 is in contact with the tumbling and kneading barrel 3. The rollers 1001 on both sides are preferably arranged at forty-five degrees. The symmetrical roller 1001 design provides better support stability, ensures the balance of the tumbling and kneading barrel 3 during rotation, and reduces vibration. The forty-five-degree symmetrical design allows the roller 1001 to bear pressure evenly, thereby extending the service life of the roller 1001 and related supporting components and reducing maintenance costs. The design of the rotating support assembly 10 reduces the safety risks caused by equipment instability or failure, and provides a safer working environment for operators.

[0045] The present invention also designs a hot brine method of a tumbling machine with adjustable positive and negative pressures, comprising the following steps:

[0046] S1, loading, opening the barrel cover 7 by rotating the motor 83 to expose the opening of the tumbling barrel 3, putting the food materials to be stewed into the tumbling barrel 3 by any means such as loading by a loading machine, loading on a conveyor line or manually, and then closing the barrel cover 7 after completion;

[0047] S2, vacuuming, opening the vacuum switch valve to perform vacuuming operation, so that the inside of the tumbling and kneading barrel 3 reaches a preset negative pressure value, then stopping the vacuuming operation and closing the vacuum switch valve, so that the inside of the tumbling and kneading barrel 3 maintains a negative pressure state;

[0048] S3, feed the auxiliary materials, open the feed switch valve so that the auxiliary materials of the braising soup at the preset temperature are sucked into the tumbling and kneading barrel 3, and then close the feed switch valve. The preset temperature of the auxiliary materials of the braising soup corresponds to the preset negative pressure value inside the tumbling and kneading barrel 3 so that the auxiliary materials of the braising soup can be boiled and vaporized after entering the tumbling and kneading barrel 3. In this embodiment, the preset negative pressure value inside the tumbling and kneading barrel 3 is -85kpa. Figure 6 As shown, the preset temperature of the corresponding braising soup ingredients is 55°C, so the braising soup quickly boils and vaporizes under the action of negative pressure, forming a high-temperature braising environment.

[0049] S4, pressurizing. After the air pressure inside the tumbling and kneading barrel 3 is balanced, the positive pressure inflation switch valve is opened, and clean compressed air is filled into the tumbling and kneading barrel 3 through the inflation pipe 67 until the preset positive pressure value is reached, and then the positive pressure inflation switch valve is closed. The pressure value of the compressed air is 50 kPa, so that a micro-positive pressure state is formed in the tumbling and kneading machine to perform micro-positive pressure high-temperature stewing. Micro-positive pressure high-temperature stewing helps to improve the texture of foods such as meat products, making them more tender and smooth, and improve the market competitiveness of products. Under a micro-positive pressure environment, the water retention capacity of food raw materials is enhanced, which helps to maintain the moisture and juiciness of the food and improve the taste of the final product;

[0050] S5, start tumbling and kneading, adjust the tumbling and kneading barrel 3 to a tilted state through the angle adjustment mechanism 5, and drive the tumbling and kneading barrel 3 to start rotating through the rotary drive mechanism 4. The tilted state can increase the turning and massaging effect of the food raw materials in the barrel, so that the raw materials move more evenly inside the tumbling and kneading barrel 3. When the tumbling and kneading barrel 3 is tilted and rotated, the meat pieces and other raw materials in the barrel can be more fully in contact with the marinade, which helps the seasoning and marinade to evenly penetrate into the raw materials, thereby improving the flavor and texture consistency of the final product;

[0051] S6, heat preservation, the hot water temperature is controlled by the mold temperature controller and the hot water is circulated in the heat preservation chamber of the tumbling and kneading barrel 3 and the heat preservation sleeve 91, so that the food raw materials are evenly heated and absorb the brine in the tumbling and kneading barrel 3;

[0052] S7, unloading, after the braising is completed, the tumbling and kneading barrel 3 is reset and the barrel cover 7 is opened to unload the materials.

[0053] In order to overcome the shortcomings of the conventional braising process, the present invention improves the conventional tumbling machine and develops a new braising process, which utilizes a new type of micro-positive pressure vacuum tumbling machine for braising, by forming a high-temperature braising environment for the braising soup under a negative pressure state, while keeping it warm through the hot water circulation in the barrel body, and then forming a stewing method similar to a pressure cooker through micro-positive pressure. Such a process can not only shorten the braising time and improve production efficiency, but also enable the product to better absorb the braising soup, thereby adding more flavor and improving the net yield.

[0054] The present invention improves the equipment and the braising process. By accurately controlling the pressure state of the tumbling and kneading barrel 3, the temperature of the braising soup, the rotation and the tilt angle of the tumbling and kneading barrel 3, etc., the food raw materials are evenly heated and flavored, and the braising efficiency and product quality are improved. This method is particularly suitable for food processing enterprises that require rapid production and high efficiency, and can also meet consumers' high requirements for food taste and flavor, thereby improving product competitiveness.

[0055] It is worth noting that the technical features such as the vacuum system, air supply system, feeding system, motor, cylinder, mold temperature controller, etc. involved in the patent application of this invention should be regarded as the prior art. The specific structure, working principle and possible control method and spatial layout method of these technical features can be selected according to the conventional selection in the field, and should not be regarded as the inventive point of the patent of this invention. The patent of this invention will not be further elaborated.

[0056] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made by technicians in the relevant technical field based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A tumbling machine with adjustable positive and negative pressure, characterized in that: It includes a frame, a support, a rolling and kneading barrel, a rotation drive mechanism, an angle adjustment mechanism, and an air pressure adjustment component. The rolling and kneading barrel is arranged on the support. The rear end of the rolling and kneading barrel is connected to the output shaft of the rotation drive mechanism. The rotation drive mechanism is used to drive the rolling and kneading barrel to rotate. The support is connected to the frame through the angle adjustment mechanism. The angle adjustment mechanism is used to adjust the angle of the rolling and kneading barrel. The air pressure adjustment component is used to adjust the air pressure inside the rolling and kneading barrel. The rotary drive mechanism includes a motor, a transmission shaft, and a bearing seat. The rear baffle of the tumbling barrel is provided with a support plate. The output shaft of the motor is fixedly connected to one end of the transmission shaft. The other end of the transmission shaft is provided with a positioning plate. The positioning plate and the support plate are fixedly connected by a plurality of bolts evenly spaced in the circumferential direction. The bearing seat is fixed on the support, and the transmission shaft is rotatably matched with the bearing in the bearing seat. The angle adjustment mechanism includes a cylinder, two groups of cylinders are symmetrically arranged on both sides of the frame, the front ends of the support are rotatably connected to the frame through the support shaft, the cylinder body of the cylinder is rotatably connected to the hinge seat on the frame, and the piston rod of the cylinder is rotatably connected to the hinge seat at the rear of the support, and the piston rod of the cylinder is extended and retracted to make the support rotate around the axis direction of the support shaft; It also includes a heat preservation mechanism, which includes a heat preservation sleeve, a guide cover, a sleeve, a first water pipe, and a second water pipe. The heat preservation sleeve cover is arranged on the outer side of the barrel wall of the tumbling barrel, and a heat preservation chamber is formed between the heat preservation sleeve and the tumbling barrel. The heat preservation chamber is used to circulate and introduce hot water. The sleeve is sleeved on the outer side of the transmission shaft, and sealing rings are respectively arranged at both ends of the sleeve. The upper and lower sides of the transmission shaft are respectively provided with a first water passage and a second water passage. The two first water pipes are respectively connected to the first water passage and the second water passage. The first water pipe is used to connect with the mold temperature controller, and the two second water pipes are respectively connected to the first water passage and the second water passage. The other end of the second water pipe is connected to the heat preservation chamber through the guide cover; Also included is a hot brine method, The following steps are included: S1, loading, opening the barrel cover by rotating the motor to expose the opening of the tumbling barrel, and then putting the food materials to be stewed into the tumbling barrel; S2, vacuuming, opening the vacuum switch valve to perform vacuuming operation, so that the inside of the tumbling and kneading barrel reaches a preset negative pressure value, then stopping the vacuuming operation and closing the vacuum switch valve to maintain the negative pressure inside the tumbling and kneading barrel; S3, feeding auxiliary materials, opening the feed switch valve so that the auxiliary materials of the braising soup at a preset temperature are sucked into the tumbling and kneading barrel, and then closing the feed switch valve, wherein the preset temperature of the auxiliary materials of the braising soup corresponds to the preset negative pressure value inside the tumbling and kneading barrel so that the auxiliary materials of the braising soup can be boiled and vaporized after entering the tumbling and kneading barrel; S4, pressurizing, after the air pressure inside the tumbling and kneading barrel is balanced, the positive pressure inflation switch valve is opened, clean compressed air is filled into the tumbling and kneading barrel through the inflation pipe until the preset positive pressure value is reached, and then the positive pressure inflation switch valve is closed; S5, start rolling and kneading, adjust the rolling and kneading barrel to an inclined state through the angle adjustment mechanism, and drive the rolling and kneading barrel to start rotating through the rotation drive mechanism; S6, heat preservation, controlling the temperature of the hot water through the mold temperature controller and circulating the hot water in the heat preservation chamber of the tumbling barrel and the heat preservation sleeve; S7, unloading, after the braising is completed, the tumbling and kneading barrel is reset and the barrel cover is opened for unloading.

2. The tumbling machine with adjustable positive and negative pressure according to claim 1, characterized in that: The front side of the tumbling barrel is provided with an openable and closable barrel cover, the air pressure regulating assembly comprises a support barrel, an outer conduit, an inner conduit, a suction pipe, a first air extraction pipe, a second air extraction pipe, and an air charging pipe, one end of the support barrel is fixedly connected to the center of the barrel cover, the outer conduit passes through the inner hole of the support barrel, the inner conduit is coaxially arranged with the outer conduit and is located on the inner side of the outer conduit, an air extraction channel is formed between the inner conduit and the outer conduit, one end of the outer conduit is connected with the second air extraction pipe, the second air extraction pipe and the outer conduit are perpendicular to each other, and the second air extraction pipe connects the inner cavity of the tumbling barrel with the second air extraction pipe. The air suction channel is conductive, the other end of the outer conduit is connected to the first air suction pipe, the first air suction pipe is located on the outside of the tumbling barrel and is perpendicular to the outer conduit, the first air suction pipe is provided with a vacuum switch valve, the first air suction pipe is connected to the vacuum system, one end of the inner conduit is connected to the inner cavity of the tumbling barrel, the other end of the inner conduit is connected to the suction pipe and the inflation pipe through a three-way pipe, the inflation pipe is provided with a positive pressure inflation switch valve, the inflation pipe is connected to the air supply system, the suction pipe is provided with a feeding switch valve, and the suction pipe is connected to the feeding system.

3. The tumbling machine with adjustable positive and negative pressure according to claim 1, characterized in that: It also includes a rotating support component, which includes a roller and a fixed seat. The two fixed seats are symmetrically installed at the front end of the support. The roller is arranged on the inner side of the fixed seat. The roller is rotatably connected to the fixed seat and is in contact with the rolling and kneading barrel.

4. The tumbling machine with adjustable positive and negative pressure according to claim 2, characterized in that: An annular inflatable sealing ring is installed on the inner side of the barrel cover, and an annular handle is arranged on the outer side of the barrel cover.

5. The tumbling machine with adjustable positive and negative pressure according to claim 4, characterized in that: The barrel cover is also provided with a safety valve.

6. The tumbling machine with adjustable positive and negative pressure according to claim 5, characterized in that: It also includes an automatic lid opening component, which includes a support rod, a mounting plate, a rotating motor, and an adjusting rod. The support rod is fixedly mounted on the front side of the support, the mounting plate is arranged on the top end of the support rod, the rotating motor is arranged on the mounting plate, the output end of the rotating motor is connected to the adjusting rod, the adjusting rod is fixedly connected to the support tube through a positioning connecting rod, and the rotating motor is used to drive the barrel cover to rotate.

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