An automatic production device for low-temperature enzymatic extraction of fruit juice and automatic separation of residue and liquid

Abstract

The application discloses a kind of automatic production equipment of juice low-temperature enzymatic extraction and residue-liquid automatic separation, and relates to juice processing technical field, including base, low-temperature enzymatic tank is fixedly installed on base, the bottom of low-temperature enzymatic tank is equipped with the discharge hopper being communicated with low-temperature enzymatic tank, the top of low-temperature enzymatic tank is equipped with the enzyme extraction mechanism for driving stirring shaft, base is also equipped with the filtrate plate for residue-liquid separation, and filtrate plate is rotatably connected below discharge hopper by residue-liquid separation mechanism, base is respectively fixedly installed with fruit juice barrel and fruit residue tank for collecting fruit residue and fruit juice, when using, by setting the transmission wheel that can be driven to lift by screw rod motor, cooperate annular array distribution stirring shaft and the deposit material of scraping plate that is adapted with discharge hopper, realize stirring shaft full tank dead angle stirring, and can scrape out the sediment material in the bottom of tank and discharge hopper inner wall in the tail of enzyme hydrolysis, effectively avoid pectinase and enzyme hydrolysis product residue.

Description

Technical Field

[0001] This invention relates to the field of fruit juice processing technology, specifically to an automated production equipment for low-temperature enzymatic extraction of fruit juice and automatic separation of residue and liquid. Background Technology

[0002] Fruit juice is an important raw material in the food industry, and its processing quality directly affects the nutritional value and market competitiveness of the final product.

[0003] Low-temperature enzymatic hydrolysis extraction technology has become one of the mainstream technologies in the fruit juice extraction field because it effectively avoids the destruction of vitamins, flavor substances, and other nutrients in fruit juice caused by high-temperature processing. Simultaneously, it breaks down the cell wall structure of the raw materials and decomposes pectin-like substances through enzymatic hydrolysis, significantly improving juice yield and clarity. The core step in low-temperature enzymatic hydrolysis extraction of fruit juice is adding pectinase to the fruit juice raw materials (such as fruit pulp and juice). Under low-temperature conditions, the pectin components in the raw materials are decomposed through enzymatic hydrolysis, breaking down the cell structure of the pulp and allowing for the full release of juice. To accelerate the enzymatic hydrolysis reaction and ensure uniform mixing of the pectinase and the fruit juice raw materials, existing production equipment typically includes a stirring device in the hydrolysis tank. The rotation of the stirring rod mixes the raw materials and enzyme preparation, ensuring the sufficiency of the enzymatic hydrolysis reaction.

[0004] In existing enzymatic hydrolysis tanks, the stirring devices are mostly set at a fixed height, and the stirring range of the stirring rod is limited to a fixed area inside the tank. When the reaction is nearing its end, pectinase is consumed by the reaction and gravity, and the enzymatic hydrolysis products (such as pectin degradation products and a small amount of fine fruit pulp residue) settle on the bottom wall of the enzymatic hydrolysis tank. Since the stirring rod at a fixed height cannot reach the deposited part at the bottom of the tank, it is easy for the pectinase and products deposited at the bottom of the tank to be difficult to completely drain. After the enzymatic hydrolysis is completed, the enzymatic hydrolysis mixture needs to be transferred to a separately set solid-liquid separation mechanism through a conveying pipeline. This solid-liquid separation mechanism usually adopts a screw conveyor driven structure, and the separation of residue and liquid is achieved by the rotation of the screw conveyor, which makes the entire production equipment occupy a large area. Summary of the Invention

[0005] In view of the problems existing in the prior art, the present invention is proposed.

[0006] Therefore, the purpose of this invention is to provide an automated production equipment for low-temperature enzymatic hydrolysis extraction of fruit juice and automatic separation of residue and liquid. The problem to be solved is that in the process of low-temperature enzymatic hydrolysis of fruit juice, the stirring device of the existing enzymatic hydrolysis tank has a fixed height and a limited stirring range, making it difficult to contact the pectinase and enzymatic hydrolysis products that tend to settle at the bottom of the tank at the end of the reaction, thus causing the discharge to be obstructed. At the same time, after enzymatic hydrolysis, the mixture needs to be transferred to a separate auger-driven solid-liquid separation mechanism, resulting in a large footprint of the entire production equipment.

[0007] To achieve the above objectives, the present invention provides the following technical solution: an automated production equipment for low-temperature enzymatic hydrolysis extraction and automatic separation of pulp and liquid in fruit juice, comprising a base, on which a low-temperature enzymatic hydrolysis tank is fixedly installed, a hopper connected to the bottom of the low-temperature enzymatic hydrolysis tank, an enzymatic extraction mechanism for driving a stirring shaft is provided at the top of the low-temperature enzymatic hydrolysis tank, a filter plate for separating pulp and liquid is also provided on the base, and the filter plate is rotatably connected to the bottom of the hopper through the pulp and liquid separation mechanism, and a fruit juice tank and a fruit pulp box for collecting fruit pulp and fruit juice are fixedly installed on the base respectively; The enzymatic extraction mechanism includes drive wheels concentrically distributed with the low-temperature enzymatic hydrolysis tank. Guide rods parallel to the stirring shaft are fixedly installed on the drive wheels. Vertically distributed stirring shafts are fixedly installed on the drive wheels, and the stirring shafts are linearly arranged along the axial direction of the stirring shafts and distributed in a ring array around the stirring shafts. A scraper is also fixedly installed at one end of the stirring shaft in the low-temperature enzymatic hydrolysis tank. The scraper is adapted to the inner wall of the discharge hopper. A threaded sliding sleeve driven to rise and fall by a lead screw motor is also fixedly installed on the drive wheels.

[0008] As a preferred embodiment of the automated production equipment for low-temperature enzymatic extraction of fruit juice and automatic separation of residue and liquid described in this invention, the enzymatic extraction mechanism further includes a driven gear for driving the transmission wheel to rotate. A guide sleeve corresponding to the guide rod is fixedly installed on the driven gear. The top end of the guide rod extends into the guide sleeve, and the transmission wheel is slidably connected to the driven gear below along the axial direction of the guide sleeve.

[0009] As a preferred embodiment of the automated production equipment for low-temperature enzymatic extraction of fruit juice and automatic separation of residue and liquid described in this invention, wherein: a lifting frame is fixedly installed at the top of the base, the driven gear is rotatably connected to the lifting frame through a bearing seat, the lifting frame is also rotatably connected to a driving gear that meshes with the driven gear through a bearing seat, and a stirring motor that is drively connected to the driving gear is also fixedly installed on the lifting frame.

[0010] As a preferred embodiment of the automated production equipment for low-temperature enzymatic extraction of fruit juice and automatic separation of residue and liquid described in this invention, the lead screw motor is fixedly installed on the lifting frame, and the output shaft of the lead screw motor is drivenly connected to a lifting lead screw. The end of the lifting lead screw away from the lead screw motor extends into the threaded sleeve and is threadedly connected to the threaded sleeve. The lifting frame is also provided with a guide ring seat for limiting the sliding of the threaded sleeve, and the bottom end of the threaded sleeve is rotatably connected to the transmission wheel through a bearing.

[0011] As a preferred embodiment of the automated production equipment for low-temperature enzymatic extraction of fruit juice and automatic separation of residue and liquid described in this invention, the following features are provided: the hopper is equipped with an electrically controlled valve for controlling the on / off state; the top of the low-temperature enzymatic hydrolysis tank is fixedly installed with a sealed chamber adapted to the transmission wheel; the transmission wheel slides along the axial direction of the sealed chamber and is in clearance fit with the sealed chamber; the sealed chamber is also equipped with a pressure relief valve and an explosion-proof valve for balancing the air pressure.

[0012] As a preferred embodiment of the automated production equipment for low-temperature enzymatic extraction of fruit juice and automatic separation of residue and liquid as described in this invention, the base is provided with a feeding area corresponding to the feeding hopper, and a receiving rack for receiving the filter plate is fixedly installed on the feeding area. The receiving rack consists of a horizontal section and a vertical section. The vertical section of the receiving rack is fixedly connected to the base, and a liquid-gathering hopper corresponding to the feeding area is fixedly installed on the horizontal section of the receiving rack, with one end of the liquid-gathering hopper extending into the fruit juice tank.

[0013] As a preferred embodiment of the automated production equipment for low-temperature enzymatic extraction of fruit juice and automatic separation of residue and liquid as described in this invention, the residue and liquid separation mechanism includes a distributing slide slidably connected to a base, and the base is provided with a slide groove for limiting the sliding of the distributing slide. A sealed platform is fixedly installed on the side of the distributing slide away from the fruit residue box. The distributing slide is also provided with a sealing rubber ring for sealingly connecting with the discharge hopper. The filter plate is rotatably connected to the sealed platform through a hinge shaft. A discharge push rod for driving the sealed platform is also fixedly installed on the base.

[0014] As a preferred embodiment of the automated production equipment for low-temperature enzymatic extraction of fruit juice and automatic separation of residue and liquid described in this invention, wherein: a storage cylinder adapted to the filter plate is fixedly installed on the dispensing slide, and the storage cylinder is adapted to the feeding area, and the filter plate is rotatably connected to the bottom of the storage cylinder through a hinge shaft.

[0015] In summary, the present invention has at least one of the following beneficial effects: 1. This invention, by setting a transmission wheel that can be driven and lifted by a lead screw motor, combined with a ring-shaped array of stirring shafts and scraper blades adapted to the hopper, achieves stirring of the entire tank without dead angles, and can scrape off the deposited material at the bottom of the tank and the inner wall of the hopper at the end of enzymatic hydrolysis, effectively avoiding the residue of pectinase and enzymatic hydrolysis products.

[0016] 2. This invention integrates the slag-liquid separation mechanism below the hopper, and utilizes the coordinated operation of the storage cylinder, filter plate and distribution slide to eliminate the need for a separate auger-driven separation mechanism, thus significantly reducing the overall footprint of the equipment.

[0017] 3. This invention achieves fully automated operation of enzymatic hydrolysis stirring, residue-liquid separation, fruit residue dumping, and equipment reset by controlling the linkage of the stirring motor, lead screw motor, electric control valve, and feeding push rod. No manual intervention is required, which effectively improves production efficiency. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a cross-sectional perspective view of the present invention; Figure 3 This is a structural diagram showing the assembly of the enzymatic extraction mechanism and the enzymatic hydrolysis tank of the present invention. Figure 4 This is a structural diagram showing the assembly of the enzymatic extraction mechanism and the stirring shaft of the present invention. Figure 5 This is a structural diagram of the enzymatic hydrolysis and extraction mechanism of the present invention; Figure 6 This is a structural diagram showing the assembly of the sludge-liquid separation mechanism and the base of the present invention. Figure 7 This is a cross-sectional view of the sludge-liquid separation mechanism and the base of the present invention. Figure 8 This is a structural diagram showing the assembly of the sludge-liquid separation mechanism and the filter plate of the present invention.

[0020] Explanation of reference numerals in the attached figures: 1. Base; 11. Feeding area; 111. Slide groove; 12. Receiving rack; 121. Liquid collection hopper; 2. Low-temperature enzymatic hydrolysis tank; 21. Feeding hopper; 22. Sealed chamber; 3. Stirring shaft; 4. Enzymatic extraction mechanism; 41. Transmission wheel; 411. Guide rod; 412. Threaded sliding sleeve; 42. Stirring shaft; 421. Scraper; 43. Driven gear; 431. Guide sleeve; 432. Screw motor; 4321. Lifting screw; 44. Elevating frame; 441. Bearing seat; 442. Guide ring seat; 45. Drive gear; 451. Stirring motor; 5. Filter plate; 51. Hinge shaft; 6. Slag-liquid separation mechanism; 61. Distributing slide; 611. Sealed platform; 612. Sealing rubber ring; 62. Storage cylinder; 63. Feeding push rod; 7. Fruit juice tank; 8. Fruit pomace box. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] This invention discloses an automated production equipment for low-temperature enzymatic extraction of fruit juice and automatic separation of residue and liquid. Example 1

[0023] Reference Figure 1-8This is the first embodiment of the present invention, which provides an automated production equipment for low-temperature enzymatic extraction of fruit juice and automatic separation of residue and liquid. This automated production equipment includes a base 1, on which a low-temperature enzymatic hydrolysis tank 2 is fixedly installed. The bottom of the low-temperature enzymatic hydrolysis tank 2 is provided with a feeding hopper 21 connected to it. The top of the low-temperature enzymatic hydrolysis tank 2 is provided with an enzymatic extraction mechanism 4 for driving a stirring shaft 3. A filter plate 5 for separating residue and liquid is also provided on the base 1, and the filter plate 5 is rotatably connected to the bottom of the feeding hopper 21 via the residue-liquid separation mechanism 6. The hopper 21 is equipped with a fruit juice tank 7 and a fruit residue box 8 for collecting fruit pomace and fruit juice, respectively. The enzymatic extraction mechanism 4 includes a transmission wheel 41 concentrically distributed with the low-temperature enzymatic hydrolysis tank 2. A guide rod 411 parallel to the stirring shaft 42 is fixedly installed on the transmission wheel 41. A vertically distributed stirring shaft 42 is fixedly installed on the transmission wheel 41. The stirring shafts 3 are linearly arranged along the axial direction of the stirring shaft 42 and arranged in a ring array around the stirring shaft 42. A scraper 421 is also fixedly installed at one end of the stirring shaft 42 in the low-temperature enzymatic hydrolysis tank 2. The scraper 421 is flush with the inner wall of the discharge hopper 21. Correspondingly, a threaded sliding sleeve 412, driven and lifted by a lead screw motor 432, is fixedly installed on the transmission wheel 41. The base 1 serves as the supporting foundation for the entire equipment. The low-temperature enzymatic hydrolysis tank 2 has a double-layer insulation structure. The inner layer is used to contain the fruit juice raw materials and pectinase, while the outer layer is filled with insulation cotton to maintain the low-temperature enzymatic hydrolysis environment inside the tank. The feed hopper 21 is funnel-shaped with a smooth inner wall design, which facilitates the smooth flow of the residue-liquid mixture after enzymatic hydrolysis. The filter plate 5 has a porous structure, which can achieve efficient separation of fruit residue and fruit juice in a closed state. The fruit juice tank 7 has a bottom but no lid structure. The transmission wheel 41 can ensure the smooth rotation of the stirring shaft 4. 2 drives the stirring shaft 3 to stir evenly in the tank. The guide rod 411 is used to limit the lifting direction of the transmission wheel 41, ensuring that it can only lift and lower along the axial direction. The scraper 421 is made of flexible silicone material, which can fit tightly against the inner wall of the feeding hopper 21 when the transmission wheel 41 descends. It scrapes off the deposited material attached to the inner wall of the feeding hopper 21 by rotating. During the enzymatic hydrolysis stage, it separates from the inner wall of the feeding hopper 21 to reduce wear on its inner wall. The threaded sleeve 412 cooperates with the lifting screw 4321 to provide power support for the lifting of the transmission wheel 41, ensuring the stability of the lifting process during the enzymatic hydrolysis stirring rotation.

[0024] The enzymatic extraction mechanism 4 also includes a driven gear 43 for driving the transmission wheel 41 to rotate. A guide sleeve 431 corresponding to the guide rod 411 is fixedly installed on the driven gear 43. The top end of the guide rod 411 extends into the guide sleeve 431, and the transmission wheel 41 is slidably connected to the lower part of the driven gear 43 along the axial direction of the guide sleeve 431. The driven gear 43 meshes with the driving gear 45, transmitting the power of the stirring motor 451 to the transmission wheel 41, driving the stirring shaft 42 and the stirring shaft 3 to rotate, thereby realizing the stirring function. The guide sleeve 431 and the guide rod 411 are clearance-fitted, which ensures that the guide rod 411 can slide smoothly along the axial direction of the guide sleeve 431 to realize the lifting and lowering of the transmission wheel 41, and also realizes the transmission of rotational power to the transmission wheel 41, while ensuring the coaxiality of the transmission wheel 41 when it rotates. When the transmission wheel 41 rotates with the driven gear 43, it drives the transmission wheel 41 to rotate synchronously, without affecting the lifting and lowering action of the transmission wheel 41 along the axial direction, thus realizing the coordinated operation of the stirring and lifting functions.

[0025] A lifting frame 44 is fixedly installed at the top of the base 1. The driven gear 43 is rotatably connected to the lifting frame 44 through a bearing seat 441. The lifting frame 44 is also rotatably connected to the driving gear 45, which meshes with the driven gear 43, through a bearing seat 441. A stirring motor 451, which is driven by the driving gear 45, is also fixedly installed on the lifting frame 44. The height of the lifting frame 44 is determined according to the height of the low-temperature enzymatic hydrolysis tank 2 and the lifting stroke of the transmission wheel 41. The bearing seat 441 ensures that the driven gear 43 and the driving gear 45 always maintain precise meshing, avoiding power transmission failure due to gear meshing deviation. The stirring motor 451 is a variable frequency motor, which can adjust the speed according to different stages of the enzymatic hydrolysis reaction. High-speed stirring is used in the early stage of enzymatic hydrolysis to accelerate the mixing of pectinase and raw materials. Low-speed stirring is used in the later stage of enzymatic hydrolysis to facilitate scraping.

[0026] The lead screw motor 432 is fixedly mounted on the lifting frame 44, and the output shaft of the lead screw motor 432 is driven and connected to the lifting lead screw 4321. The end of the lifting lead screw 4321 away from the lead screw motor 432 extends into the threaded sleeve 412 and is threadedly connected to the threaded sleeve 412. The lifting frame 44 is also provided with a guide ring seat 442 for limiting the sliding of the threaded sleeve 412, and the bottom end of the threaded sleeve 412 is rotatably connected to the transmission wheel 41 through a bearing. The lead screw motor 432 is a servo motor that can precisely control the lifting and lowering of the transmission wheel 41. The height is designed to meet the needs of different stirring heights, especially at the end of the enzymatic hydrolysis reaction. It can drive the stirring shaft 3 to descend to the bottom of the tank, and work with the scraper 421 to clean up the deposited material. The guide ring seat 442 is sleeved on the outside of the threaded sliding sleeve 412 to restrict the rotation of the threaded sliding sleeve 412, ensuring that it can only move up and down in the axial direction. This prevents the threaded sliding sleeve 412 from rotating synchronously with the lifting screw 4321, ensuring the normal rotation and lifting of the transmission wheel 41. It also allows the transmission wheel 41 to rotate freely relative to the threaded sliding sleeve 412, so that the stirring and lifting actions do not interfere with each other.

[0027] The hopper 21 is equipped with an electrically controlled valve for controlling the on / off state. The top of the low-temperature enzymatic hydrolysis tank 2 is fixedly installed with a sealed chamber 22 that is compatible with the drive wheel 41. The drive wheel 41 slides along the axial direction of the sealed chamber 22 and is clearance-fitted with the sealed chamber 22. The sealed chamber 22 is also equipped with a pressure relief valve and an explosion-proof valve for balancing the gas pressure. The electrically controlled valve on the hopper 21 is an electromagnetic control valve, which is electrically connected to the control system of the equipment. It can realize the automatic control of the on / off state of the hopper 21. After the enzymatic hydrolysis reaction is completed, the control system sends a signal, and the electrically controlled valve automatically opens. The residue-liquid mixture is discharged through the hopper 21. The sealed chamber 22 is used to seal the connection between the drive wheel 41 and the low-temperature enzymatic hydrolysis tank 2 to prevent the leakage of low-temperature gas in the tank and the entry of outside air during the enzymatic hydrolysis process. The drive wheel 41 also plays a certain sealing role.

[0028] The base 1 has a feeding area 11 corresponding to the feeding hopper 21. A receiving frame 12 for receiving the filter plate 5 is fixedly installed on the feeding area 11. The receiving frame 12 consists of a horizontal section and a vertical section. The vertical section of the receiving frame 12 is fixedly connected to the base 1. A liquid-gathering hopper 121 corresponding to the feeding area 11 is fixedly installed on the horizontal section of the receiving frame 12. One end of the liquid-gathering hopper 121 extends into the fruit juice tank 7. The feeding area 11 is located directly below the feeding hopper 21 and is used to provide space for the falling and separation of the residue-liquid mixture. The receiving frame 12 has an L-shaped structure. The horizontal section is used to support the liquid-gathering hopper 121 and the filter plate 5 to ensure their stable position. The liquid-gathering hopper 121 is funnel-shaped with a smooth inner wall. It is used to receive the fruit juice after filtration by the filter plate 5, gather the dispersed fruit juice together, and guide it into the fruit juice tank 7. The connection between the liquid-gathering hopper 121 and the fruit juice tank 7 is sealed with a flexible sealing sleeve to prevent fruit juice leakage.

[0029] The residue-liquid separation mechanism 6 includes a distributing slide 61 slidably connected to a base 1, and a slide groove 111 for limiting the sliding of the distributing slide 61 is provided on the base 1. A sealing platform 611 is fixedly installed on the side of the distributing slide 61 away from the fruit pomace box 8. A sealing rubber ring 612 for sealingly connecting the distributing slide 61 to the discharge hopper 21 is also provided. The filter plate 5 is rotatably connected to the sealing platform 611 through a hinge shaft 51. A discharge push rod 63 for driving the sealing platform 611 is also fixedly installed on the base 1. The distributing slide 61 can slide along the slide groove 111 on the base 1. The sliding, sealed platform 611 is used to install the filter plate 5. Its surface is provided with a sealing groove. When the fruit pomace is poured, it cooperates with the sealing rubber ring 612 to realize the sealed connection between the material distribution slide 61 and the discharge hopper 21, preventing the mixture of residue and liquid from leaking from the connection. The filter plate 5 can rotate flexibly through the hinge shaft 51 to realize the pouring action of the fruit pomace. The discharge push rod 63 is an electric push rod, which is electrically connected to the equipment control system. It can automatically drive the material distribution slide 61 to slide along the slide groove 111, driving the sealed platform 611 and the filter plate 5 to move, realizing the switching between residue and liquid separation and fruit pomace pouring.

[0030] A storage cylinder 62, which is compatible with the filter plate 5, is also fixedly installed on the dispensing slide 61. The storage cylinder 62 is compatible with the feeding area 11. The filter plate 5 is rotatably connected to the bottom of the storage cylinder 62 via the hinge shaft 51. The storage cylinder 62 has a cylindrical structure with openings at both ends. It is used to receive the residue-liquid mixture discharged from the feeding hopper 21 and temporarily store the residue-liquid mixture to facilitate the filter plate 5 to fully separate the residue and liquid. The filter plate 5 is rotatably connected to the bottom of the storage cylinder 62. After the residue-liquid separation is completed, the dispensing slide 61 can be driven to slide along the slide groove 111 by the feeding push rod 63. This causes the filter plate 5, which loses the horizontal support of the receiving frame 12, to deflect due to gravity and rotate around the hinge shaft 51, pouring the filtered fruit pulp into the fruit pulp box 8, thus realizing the automated cleaning of the fruit pulp.

[0031] In the process of processing beverage raw materials to be enzymatically hydrolyzed in this device, the first step is the enzymatic preparation and stirring stage: the fruit juice raw materials and pectinase are put into the low-temperature enzymatic hydrolysis tank 2 with a double-layer insulation structure. The outer layer of insulation cotton maintains the low-temperature enzymatic hydrolysis environment inside the tank. The stirring motor 451 is started, and its power is transmitted to the meshing driven gear 43 through the active gear 45. The driven gear 43 drives the transmission wheel 41 to rotate synchronously through the cooperation of the guide sleeve 431 and the guide rod 411, which in turn drives the stirring shaft 42 and the stirring shaft 3 distributed in a ring array to rotate, so as to achieve uniform mixing of raw materials and pectinase. At this time, the vertical height of the stirring shaft 3 remains unchanged. During the stirring process, the stirring motor 451 can adjust its speed according to the enzymatic hydrolysis stage by feeding back data from the corresponding monitoring sensor elements: high-speed stirring accelerates mixing in the early stage of enzymatic hydrolysis, and low-speed stirring in the later stage of enzymatic hydrolysis. The lead screw motor 432 drives the lifting lead screw 4321 to rotate. Through the threaded engagement with the threaded sleeve 412 and under the restriction of the guide ring seat 442, the transmission wheel 41 is driven to rise and fall along the axial direction of the guide sleeve 431, so that the stirring shaft 3 covers different height areas of the low-temperature enzymatic hydrolysis tank 2. At the end of the enzymatic hydrolysis reaction, the transmission wheel 41 descends, causing the scraper 421 to fit tightly against the inner wall of the hopper 21. By rotating, the pectinase and enzymatic hydrolysis product deposits on the bottom of the tank and the inner wall of the hopper 21 are scraped off to avoid material residue. At this time, the scraper 421 is in close contact with the inner wall of the hopper 21 to scrape the material. After the enzymatic hydrolysis reaction is completed, the equipment control system sends a signal, and the electromagnetic control valve on the feeding hopper 21 opens automatically. The mixture of residue and liquid after enzymatic hydrolysis falls into the storage cylinder 62 below along the funnel-shaped feeding hopper 21. At this time, the material distribution slide 61 is in the initial working position, and the storage cylinder 62 is precisely aligned with the feeding area 11. The sealing rubber ring 612 on the sealing platform 611 is sealed to the feeding hopper 21 to prevent the residue and liquid from leaking. The filter plate 5 is kept in a horizontal closed state under the support of the horizontal section of the receiving frame 12. The mixture of residue and liquid falling into the storage cylinder 62 is temporarily stored. The fruit juice is filtered through the porous filter plate 5 under the action of gravity. The filtered fruit juice falls into the collection hopper 121 below. After the collection hopper 121 gathers the dispersed fruit juice, it is introduced into the fruit juice tank 7 through the flexible sealing connection interface to complete the fruit juice collection. The fruit residue is intercepted above the filter plate 5, realizing automatic separation of residue and liquid. After the residue-liquid separation is completed, the control system starts the feeding push rod 63 (electric push rod), which drives the distributing slide 61 to slide horizontally along the slide groove 111 on the base 1. This causes the storage cylinder 62, the filter plate 5, and the sealed platform 611 to move synchronously and move away from directly below the feeding hopper 21. When the distributing slide 61 slides directly above the fruit pomace box 8, the filter plate 5 loses the support of the horizontal section of the receiving frame 12. Under its own gravity and the gravity of the fruit pomace, it deflects and rotates around the hinge shaft 51, pouring the retained fruit pomace into the fruit pomace box 8, completing the automated cleaning of the fruit pomace. At this time, the sealing rubber ring 612 on the sealed platform 611 continues to be sealed and connected to the feeding hopper 21. After the fruit pomace is poured out, the feeding push rod 63 drives the distributing slide 61 to reset to the initial working position in the opposite direction. The filter plate 5 is supported and closed again by the horizontal section of the receiving frame 12, thus preparing for the next residue-liquid separation. The entire process requires no manual intervention and achieves automated continuous operation.

[0032] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. An automated production equipment for low-temperature enzymatic extraction of fruit juice and automatic separation of residue and liquid, characterized in that: The system includes a base (1), on which a low-temperature enzymatic hydrolysis tank (2) is fixedly installed. The bottom end of the low-temperature enzymatic hydrolysis tank (2) is provided with a feeding hopper (21) connected to the low-temperature enzymatic hydrolysis tank (2). The top end of the low-temperature enzymatic hydrolysis tank (2) is provided with an enzymatic extraction mechanism (4) for driving a stirring shaft (3). The base (1) is also provided with a filter plate (5) for separating the residue and liquid. The filter plate (5) is rotatably connected to the bottom of the feeding hopper (21) through the residue and liquid separation mechanism (6). The base (1) is fixedly installed with a fruit liquid bucket (7) and a fruit residue box (8) for collecting fruit residue and fruit liquid, respectively. The enzymatic extraction mechanism (4) includes a transmission wheel (41) concentrically distributed with the low-temperature enzymatic hydrolysis tank (2). A guide rod (411) parallel to the stirring shaft (42) is fixedly installed on the transmission wheel (41). A vertically distributed stirring shaft (42) is fixedly installed on the transmission wheel (41). The stirring shaft (3) is linearly arranged along the axial direction of the stirring shaft (42) and arranged in a ring array around the stirring shaft (42). A scraper (421) is also fixedly installed at one end of the stirring shaft (42) in the low-temperature enzymatic hydrolysis tank (2). The scraper (421) is adapted to the inner wall of the hopper (21). A threaded sleeve (412) driven to rise and fall by a screw motor (432) is also fixedly installed on the transmission wheel (41).

2. The automated production equipment for low-temperature enzymatic extraction of fruit juice and automatic separation of residue and liquid according to claim 1, characterized in that, The enzymatic extraction mechanism (4) further includes a driven gear (43) for driving the transmission wheel (41) to rotate. A guide sleeve (431) corresponding to the guide rod (411) is fixedly installed on the driven gear (43). The top end of the guide rod (411) extends into the guide sleeve (431), and the transmission wheel (41) is slidably connected to the driven gear (43) along the axial direction of the guide sleeve (431).

3. The automated production equipment for low-temperature enzymatic extraction of fruit juice and automatic separation of residue and liquid according to claim 2, characterized in that, A lifting frame (44) is fixedly installed at the top of the base (1). The driven gear (43) is rotatably connected to the lifting frame (44) through a bearing seat (441). The lifting frame (44) is also rotatably connected to a driving gear (45) that meshes with the driven gear (43) through a bearing seat (441). A stirring motor (451) that is driven by the driving gear (45) is also fixedly installed on the lifting frame (44).

4. The automated production equipment for low-temperature enzymatic extraction of fruit juice and automatic separation of residue and liquid according to claim 3, characterized in that, The lead screw motor (432) is fixedly installed on the lifting frame (44), and the output shaft of the lead screw motor (432) is connected to the lifting lead screw (4321). The end of the lifting lead screw (4321) away from the lead screw motor (432) extends into the threaded sleeve (412) and is threadedly connected to the threaded sleeve (412). The lifting frame (44) is also provided with a guide ring seat (442) for limiting the sliding of the threaded sleeve (412), and the bottom end of the threaded sleeve (412) is rotatably connected to the transmission wheel (41) through a bearing.

5. The automated production equipment for low-temperature enzymatic extraction of fruit juice and automatic separation of residue and liquid according to claim 1, characterized in that, The feeding hopper (21) is equipped with an electrically controlled valve for controlling the on and off states. The top of the low-temperature enzymatic hydrolysis tank (2) is fixedly installed with a sealed chamber (22) that is compatible with the transmission wheel (41). The transmission wheel (41) slides along the axial direction of the sealed chamber (22) and is in clearance fit with the sealed chamber (22). The sealed chamber (22) is also equipped with a pressure relief valve and an explosion-proof valve for balancing the air pressure.

6. The automated production equipment for low-temperature enzymatic extraction of fruit juice and automatic separation of residue and liquid according to claim 1, characterized in that, The base (1) is provided with a feeding area (11) corresponding to the feeding hopper (21). A receiving rack (12) for receiving the filter plate (5) is fixedly installed on the feeding area (11). The receiving rack (12) is composed of a horizontal section and a vertical section. The vertical section of the receiving rack (12) is fixedly connected to the base (1). A liquid collection hopper (121) corresponding to the feeding area (11) is fixedly installed on the horizontal section of the receiving rack (12), and one end of the liquid collection hopper (121) extends into the fruit juice tank (7).

7. The automated production equipment for low-temperature enzymatic extraction of fruit juice and automatic separation of residue and liquid according to claim 5, characterized in that, The residue-liquid separation mechanism (6) includes a material distribution slide (61) slidably connected to the base (1), and the base (1) is provided with a slide groove (111) for limiting the sliding of the material distribution slide (61). A sealed platform (611) is fixedly installed on the side of the material distribution slide (61) away from the fruit residue box (8). A sealing rubber ring (612) for sealing connection with the discharge hopper (21) is also provided on the material distribution slide (61). The filter plate (5) is rotatably connected to the sealed platform (611) through a hinge shaft (51). A discharge push rod (63) for driving the sealed platform (611) is also fixedly installed on the base (1).

8. The automated production equipment for low-temperature enzymatic extraction of fruit juice and automatic separation of residue and liquid according to claim 7, characterized in that, The material distribution slide (61) is also fixedly installed with a storage cylinder (62) that is compatible with the filter plate (5), and the storage cylinder (62) is compatible with the feeding area (11). The filter plate (5) is rotatably connected to the bottom of the storage cylinder (62) through a hinge shaft (51).

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