Collagen peptide extraction device

Abstract

The invention relates to the technical field of enzymolysis extraction, and discloses a collagen peptide extraction device which comprises an enzymolysis tank, the enzymolysis tank comprises an upper enzymolysis cover and a lower enzymolysis cabin, and the upper enzymolysis cover is detachably connected with the lower enzymolysis cabin; a stirring assembly is arranged in the enzymolysis tank and comprises a plurality of magnetic stirring rods, a lifting driving part and a rotating driving part, the magnetic stirring rods are used for adsorbing or releasing immobilized enzyme, and the lifting driving part is used for adjusting the depth position of each magnetic stirring rod in the enzymolysis tank; the rotation driving part is used for controlling the magnetic stirring rod to rotate, at least one magnetic stirring rod is arranged at any depth position in the liquid to be subjected to enzymolysis in the enzymolysis tank, and the magnetic immobilized enzyme enzymolysis device has the advantages that the magnetic immobilized enzyme can be guided to be uniformly distributed in the liquid to be subjected to enzymolysis in the enzymolysis tank, and enzymolysis and collection of the immobilized enzyme are facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of enzymatic extraction, and particularly to an extraction device for collagen peptides. Background Art

[0002] Collagen is a structurally rich protein in animals. After collagen is decomposed by enzymatic hydrolysis, acid-base hydrolysis, pyrolysis, fermentation and other technologies, collagen peptides composed of 2-20 amino acid residues can be obtained. Therefore, enzymatic hydrolysis technology is mainly used in the extraction and preparation of collagen peptides, supplemented by acid treatment, alkali treatment, heat treatment, ultrasonic treatment and other means.

[0003] In the application of existing enzymatic extraction technology, in order to improve the utilization rate of enzymes, magnetic microspheres are used to immobilize the enzymes. After enzymatic hydrolysis, an external magnetic field can be used to separate them, and then they can be reused.

[0004] Chinese Patent Application No. 2012203418415 discloses a special enzymatic hydrolysis tank for magnetically immobilized enzymes, including a tank body with a heat preservation layer on its outer surface and a corresponding power supply. The top of the tank body is provided with a discharging port, a sampling hole, and a manhole, the bottom center is provided with a discharging port, and a stirring mechanism is arranged inside. An electromagnetic device is arranged at the bottom inside the tank body. The electromagnetic device includes an internal coil encapsulated by resin, and the upper surface of the electromagnetic device is an electromagnetic chuck; its shape is an annular structure surrounding the discharging port, and the bottom shape fits closely with the bottom of the tank body and is closely attached to the bottom of the tank body; the strength of its magnetism can be controlled by current. This enzymatic hydrolysis tank can realize the instant recovery and instant release of magnetically immobilized enzymes, with complete recovery, easy cleaning after reaction, centralized discharge of waste enzymes, energy conservation and environmental protection, which is conducive to the scientific and reasonable use of magnetically immobilized enzymes and is convenient for industrial promotion and application; it can completely recover magnetically immobilized enzymes. However, the electromagnetic device in this enzymatic hydrolysis tank can only achieve simple adsorption of magnetically immobilized enzymes and cannot control the uniform distribution of immobilized enzymes. At the initial contact, the immobilized enzymes are concentrated in a specific area in the enzymatic hydrolysis tank and completely rely on the stirring of the stirring mechanism to achieve the dispersion of enzymes. However, during the rotation of the stirring rod, the enzymes can only move along with the flow direction of the liquid and cannot be quickly dispersed in the tank body, relatively reducing the efficiency of collagen peptide enzymatic extraction.

[0005] In summary, there is an urgent need for an extraction device for collagen peptides that can guide magnetically immobilized enzymes to be evenly distributed in the liquid to be enzymatically hydrolyzed in the enzymatic hydrolysis tank and is convenient for the enzymatic hydrolysis and collection of immobilized enzymes. Summary of the Invention

[0006] In view of the problem of uneven enzyme distribution existing in the prior art, an extraction device for collagen peptides is proposed, which can guide magnetically immobilized enzymes to be evenly distributed in the liquid to be enzymatically hydrolyzed in the enzymatic hydrolysis tank and is convenient for the enzymatic hydrolysis and collection of immobilized enzymes.

[0007] To solve the above problems, the technical solution of the present invention is as follows:

[0008] An extraction device for collagen peptides, comprising an enzymatic hydrolysis tank, the enzymatic hydrolysis tank includes an upper enzymatic hydrolysis cover and a lower enzymatic hydrolysis chamber, and the upper enzymatic hydrolysis cover is detachably connected to the lower enzymatic hydrolysis chamber; a stirring assembly is arranged in the enzymatic hydrolysis tank, the stirring assembly includes a plurality of magnetic adsorption stirring rods, a lifting driving member, and a rotation driving member, the magnetic adsorption stirring rods are used for adsorbing or releasing immobilized enzymes, the lifting driving member is used for adjusting the depth position of each magnetic adsorption stirring rod in the enzymatic hydrolysis tank, and the rotation driving member is used for controlling the rotation of the magnetic adsorption stirring rods. Among them, there is at least one magnetic adsorption stirring rod at any depth position in the liquid to be enzymatically hydrolyzed in the enzymatic hydrolysis tank.

[0009] As a preferred technical solution, the lifting driving member is a telescopic rod, and one end of the telescopic rod is connected to the magnetic adsorption stirring rod.

[0010] As a preferred technical solution, the rotation driving member is a driving motor, and a plurality of telescopic rods connecting each magnetic adsorption stirring rod are connected to the driving shaft of the driving motor.

[0011] As a preferred technical solution, the lifting driving member includes a limit sleeve, a lifting sleeve, and a threaded rod; a plurality of limit grooves are arranged on the limit sleeve, and the bottoms of the limit grooves are located in different planes perpendicular to the axial direction of the limit sleeve; the rotation of the threaded rod drives the lifting sleeve to move up and down along the threaded rod, the rotation driving member drives the threaded rod to rotate, and the bottom of the limit sleeve is connected to the lower enzymatic hydrolysis chamber through a bearing.

[0012] As a preferred technical solution, a buckle is arranged at the end of the magnetic adsorption stirring rod, and the buckle is adapted to the limit groove; the lifting sleeve is located below each buckle and can push the buckle to move up along the limit groove.

[0013] As a preferred technical solution, the limit sleeve includes a lower chamber pipe and an upper cover pipe, and the lower chamber pipe is detachably connected to the upper cover pipe.

[0014] As a preferred technical solution, the threaded rod includes a lower chamber screw and an upper cover screw, and the lower chamber screw is detachably connected to the upper cover screw.

[0015] As a preferred technical solution, a connecting ring is arranged in the upper cover pipe, and the connecting ring is connected to the upper enzymatic hydrolysis cover through a bearing. The connecting ring is movably connected to the inner wall of the upper cover pipe through a contraction rod. First bevel blocks are arranged on the inner wall of the upper cover pipe, and when the buckle rises along the first bevel blocks, the upper cover pipe can contract towards the axis.

[0016] As a preferred technical solution, a second bevel block is provided on the inner wall below the bottom of the limiting groove of the lower cabin pipe, and the lifting sleeve descends along the second bevel block so that the threaded rod is engaged with the limiting sleeve.

[0017] As a preferred technical solution, after the enzymatic hydrolysis starts and the magnetic stirring bar rotates, the adsorption capacity of the magnetic stirring bar for the immobilized enzyme gradually decreases.

[0018] Advantages of the present invention:

[0019] For the extraction device of collagen peptide of the present invention, the enzymatic hydrolysis tank is composed of a detachable upper enzymatic hydrolysis cover and a lower enzymatic hydrolysis cabin, and its stirring assembly includes a number of magnetic stirring bars. Each magnetic stirring bar can be distributed at different depth positions in the lower enzymatic hydrolysis cabin under the action of a lifting driving member. Combining with the rotation of the rotation driving member and the orderly decrease of the magnetic force of the magnetic stirring bar, the immobilized enzyme attached to the magnetic stirring bar can be released to every place of the enzymatic hydrolysis solution, so as to realize the uniform distribution of the immobilized enzyme in the enzymatic hydrolysis solution. When the magnetic stirring bars are arranged in a ring shape, they can be gathered in the upper enzymatic hydrolysis cover, which is convenient for transfer following the upper enzymatic hydrolysis cover. After the transfer, it is convenient to process the immobilized enzyme on the magnetic stirring bar, such as making the magnetic stirring bar fully adsorb the immobilized enzyme or cleaning the recovered immobilized enzyme on the magnetic stirring bar. Description of the drawings

[0020] Attached Figure 1 is a three-dimensional schematic diagram of the collagen peptide of the present invention;

[0021] Attached Figure 2 is a schematic diagram of the upper enzymatic hydrolysis cover and its stirring assembly of the present invention;

[0022] Attached Figure 3 is a schematic diagram of the lower enzymatic hydrolysis cabin and the stirring state of the present invention;

[0023] Figure 4 is a schematic diagram of the limiting sleeve of the present invention;

[0024] Figure 5 is a schematic diagram of the threaded rod of the present invention;

[0025] Figure 6 Attached Figure 5 is a partial enlarged schematic diagram of A in

[0026] Figure 7 is a partial sectional view of the bottom of the limiting sleeve of the present invention;

[0027] Figure 8 is a partial schematic diagram of the upper cover pipe and the magnetic stirring bar of the present invention;

[0028] Figure 9 is a schematic diagram of the detachable threaded rod of the present invention;

[0029] Figure 10 It is a schematic diagram of the adaptation of another magnetic stirring rod of the present invention to the limiting groove in the stirring state.

[0030] The reference numerals and components involved in the drawings are shown as follows:

[0031] 1. Enzymolysis tank; 2. Upper enzymolysis cover; 3. Lower enzymolysis chamber;

[0032] 4. Stirring assembly; 41. Magnetic stirring rod; 411. Buckle; 42. Lifting driving member; 43. Rotating driving member;

[0033] 5. Limiting sleeve; 51. Upper cover pipe; 52. Lower chamber pipe; 53. Limiting groove; 511. First beveled block; 512. Connecting ring; 513. Retracting rod; 521. Second beveled block;

[0034] 6. Lifting sleeve;

[0035] 7. Threaded rod; 71. Upper cover screw; 72. Lower chamber screw. Detailed implementation manners

[0036] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the following will describe the detailed implementation manners of the present invention with reference to the drawings of the specification. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0037] To better understand an extraction device for collagen peptides provided in this embodiment, the following first briefly introduces the existing extraction devices for collagen peptides. The existing extraction device for collagen peptides, such as the Chinese patent application with the application number 202220471585.5, discloses an enzymolysis tank for rapidly recovering immobilized enzymes, which includes a tank body with an inner cavity. A driving motor is fixedly connected to the upper surface of the tank body. The output shaft of the driving motor movably penetrates the upper wall of the tank body and extends into the interior of the inner cavity. A regulating mechanism is fixedly connected to the lower end of the output shaft of the driving motor. By designing the stirring paddle in the tank body as an electromagnet type and simultaneously changing the original shape of the stirring paddle to a spiral shape to increase its contact area with the fermentation broth, and using magnetic nanomaterials as the carrier of the immobilized enzyme to ensure that the immobilized enzyme can be adsorbed on the stirring paddle with current applied. The magnetic property of the stirring paddle is used to fully adsorb the immobilized enzyme in the fermentation broth on the stirring paddle. When used next time, the current is disconnected to make the immobilized enzyme detach from the stirring paddle, and the stirring action is used to make it evenly distributed in the fermentation broth, so as to achieve the effect of rapid separation while ensuring purity. However, as described in its own record, it can still only adjust the distribution of the enzyme in the fermentation broth by the stirring action.

[0038] Example 1

[0039] Please refer to the appendix Figure 1 ; The extraction device of the collagen peptide of the present invention includes an enzymolysis tank 1, and the enzymolysis tank 1 has a cavity structure with a conical upper and lower part and a cylindrical middle part. In order to enable the immobilized enzyme to enter the fermentation broth uniformly and controllably, the enzymolysis tank 1 includes an upper enzymolysis cover 2 and a lower enzymolysis chamber 3. The upper enzymolysis cover 2 is detachably connected to the lower enzymolysis chamber 3, and the upper enzymolysis cover 2 can be separated from the lower enzymolysis chamber 3 through a hoisting mechanism. Please refer to the appendix Figure 2 ; A stirring assembly 4 is arranged in the enzymolysis tank 1. The stirring assembly 4 includes a plurality of magnetic stirring rods 41, a lifting driving member 42, and a rotation driving member 43. An electromagnetic assembly is arranged in the magnetic stirring rod 41. The electromagnetic assembly is a prior art and can change the magnetic attraction ability of the magnetic stirring rod 41 by changing the magnitude of the current. When the magnetic attraction ability decreases, the adsorbed immobilized enzyme will be released; a plurality of magnetic stirring rods 41 are arranged around the center of the enzymolysis tank 1. A lifting driving member 42 is arranged in the chamber of the upper enzymolysis cover 2, and the lifting driving member 42 is correspondingly connected to each magnetic stirring rod 41, and the positions of the respective magnetic stirring rods 41 in the enzymolysis tank 1 can be controlled separately. Please refer to the appendix Figure 3 ; After each magnetic stirring rod 41 reaches the corresponding position, the rotation driving member 43 can drive each magnetic stirring rod 41 to rotate in the liquid to be enzymolyzed in the lower enzymolysis chamber 3.

[0040] Specifically, in this embodiment, the lifting driving member 42 is a telescopic rod structure, which is realized by a hydraulic telescopic system or a threaded rod 7 telescopic system, etc. Taking the hydraulic telescopic rod as an example, the hydraulic cylinder is located in the upper enzymolysis cover 2 and is arranged around the axis of the enzymolysis tank 1. The bottom of the hydraulic cylinder is connected to a disc, and the disc is connected to the rotating shaft of the rotation driving member 43. The rotation driving member 43 is a driving motor arranged above the upper enzymolysis cover 2. The end of the hydraulic telescopic rod is connected to the magnetic stirring rod 41. Preferably, the length of the magnetic stirring rod 41 is slightly less than the radius of the enzymolysis tank 1 at the corresponding position.

[0041] The usage method of the present invention is as follows. In the initial state, each magnetic stirring rod 41 gathers in the cavity of the upper enzymolysis cover 2 and is located in the same plane in this embodiment. The upper enzymolysis cover 2 is lifted and the magnetic stirring rods 41 are placed in a storage tank of a quantitative immobilized enzyme, so that the energized magnetic stirring device fully adsorbs the immobilized enzyme for enzymolysis; the liquid to be enzymolyzed is placed into the lower enzymolysis chamber 3, and then the upper enzymolysis cover 2 is combined with the lower enzymolysis chamber 3. At this time, the magnetic stirring rods 41 are located above the enzymolysis solution. When the temperature in the enzymolysis chamber stabilizes at an appropriate temperature conducive to the enzymolysis reaction, the lifting drive member 42 is started to move each magnetic stirring rod 41 into the enzymolysis solution. At this time, the magnetic stirring rods 41 still maintain the state of adsorbing the immobilized enzyme until each magnetic stirring rod 41 moves to the corresponding position, so that there is one magnetic stirring rod 41 at each depth position of the enzymolysis solution. In some embodiments, two magnetic stirring rods 41 can be arranged at the corresponding depth positions, etc.; when each magnetic stirring rod 41 is at different depths, the rotation drive member 43 is started to drive each magnetic stirring rod 41 to rotate around the axis of the enzymolysis tank 1. At the same time, the current of the electromagnetic components in each magnetic stirring rod 41 is gradually reduced, and the immobilized enzyme on it is slowly released, so that the immobilized enzyme can diffuse on the movement trajectories of each magnetic stirring rod 41; after the enzymolysis is completed, the adsorption ability of the magnetic stirring rods 41 is restored. During the stirring process, the immobilized enzyme mixed in the enzymolysis solution is adsorbed. After the adsorption is completed, each magnetic stirring rod 41 is lifted by the lifting drive member 42 to restore it to the state of hanging above the enzymolysis solution. It can be left standing for a certain time while maintaining the magnetic attraction state to wait for the liquid on the magnetic stirring rods 41 to drip, or the enzymolysis solution adhered to the magnetic stirring rods 41 can be shaken off by the continuous rotation of the rotation drive member 43; the enzymolyzed enzymolysis solution can be discharged from the liquid discharge port at the bottom of the lower enzymolysis chamber 3; it should be noted that the immobilized enzyme that is still highly active after being re-adsorbed on the magnetic stirring rods 41 after enzymolysis can continue to enzymolyze the next tank of enzymolysis solution until it loses its corresponding activity, and then it is lifted to a recovery container for release and cleaning.

[0042] The enzymolysis tank 1 of the extraction device for collagen peptides according to the present invention is composed of a detachable upper enzymolysis cover 2 and a lower enzymolysis chamber 3. Its stirring assembly 4 includes a number of magnetic stirring rods 41. Each magnetic stirring rod 41 can be distributed at different depth positions in the lower enzymolysis chamber 3 under the action of the lifting drive member 42. Cooperating with the rotation of the rotation drive member 43 and the orderly reduction of the magnetic force of the magnetic stirring rods 41, the immobilized enzyme attached to the magnetic stirring rods 41 can be released to every part of the enzymolysis solution, so as to realize the uniform distribution of the immobilized enzyme in the enzymolysis solution. When the magnetic stirring rods 41 are arranged in a ring, they can gather in the upper enzymolysis cover 2, which is convenient for transfer following the upper enzymolysis cover 2. After the transfer, it is convenient to process the immobilized enzyme on the magnetic stirring rods 41, such as making the magnetic stirring rods 41 fully adsorb the immobilized enzyme or cleaning the recovered immobilized enzyme on the magnetic stirring rods 41.

[0043] Example 2

[0044] To simplify the control system and its drive structure of the stirring assembly 4, this embodiment provides another lifting drive member 42 and a magnetic stirring rod 41 adapted thereto, avoiding a significant reduction in the service life of the corresponding drive elements in a high-temperature and high-humidity working environment.

[0045] Please refer to the appendix Figure 4 、 Figure 5 、 Figure 6 ; Specifically, the lifting drive member 42 includes a limit sleeve 5, a lifting sleeve 6, and a threaded rod 7; the limit sleeve 5 is a tubular structure including an upper cover tube 51 and a lower cabin tube 52, the lower cabin tube 52 is connected to the lower enzymatic hydrolysis chamber 3, and the lower cabin tube 52 can rotate around its own axis. The upper cover tube 51 is detachably connected to the lower cabin tube 52 in the form of a pin. A number of limit grooves 53 are provided on the limit sleeve 5. The limit grooves 53 are guide grooves for the movement of the magnetic stirring rod 41 arranged along its axial direction, and the bottoms of the limit grooves 53 are located in different planes perpendicular to the axial direction of the lower cabin tube 52 of the limit sleeve 5. That is, when each magnetic stirring rod 41 contacts the bottom of each limit groove 53, at least one magnetic stirring rod 41 is provided on each layer of the lower enzymatic hydrolysis chamber 3; the threaded rod 7 is coaxially arranged with the limit sleeve 5 and is located inside the limit sleeve 5. The inner diameter of the limit sleeve 5 is larger than the diameter of the threaded rod 7, and the threaded rod 7 is adapted to the lifting sleeve 6. The outer wall of the lifting sleeve 6 is adaptively connected to the inner wall of the limit sleeve 5 through a convex block and has a gap with the inner wall of the limit sleeve 5. The rotation drive member 43 drives the threaded rod 7 to rotate, and the rotation of the threaded rod 7 can drive the lifting sleeve 6 to lift along the threaded rod 7. To make the threaded rod 7 be clamped together with the lifting sleeve 6 and the limit sleeve 5, please refer to the appendix Figure 7 ; A second beveled block 521 is provided on the inner wall of the bottom of the lower cabin tube 52. Please refer to the appendix Figure 8 ; A first beveled block 511 is provided on the inner wall of the top of the upper cover tube 51, and a coaxial connection ring 512 is provided inside the upper cover tube 51. The connection ring 512 is connected to the upper enzymatic hydrolysis cover 2 through a bearing. One end of the retractable rod 513 is connected to the outer wall of the connection ring 512 through a shaft rod, and the other end is connected to the inner wall of the upper cover tube 51 through a shaft rod, and a torsion spring is provided on the shaft rod.

[0046] Please refer to the appendix again Figure 8 ; In this embodiment, a buckle 411 is provided at the end of the magnetic stirring rod 41, and the lifting sleeve 6 is located below the buckle 411. An electromagnetic adsorption assembly is provided inside the magnetic stirring rod 41, and its power supply can be battery power supply or wire power supply provided inside the magnetic stirring rod 41, etc.

[0047] Please refer to the appendix Figure 9; The threaded rod 7 also includes an upper cover screw rod 71 and a lower chamber screw rod 72. The upper cover screw rod 71 is connected to the rotation driving member 43, and the lower chamber screw rod 72 is connected to the bottom of the lower enzymatic hydrolysis chamber 3 through a bearing. The upper cover screw rod 71 and the lower chamber screw rod 72 are also detachably connected by a pin.

[0048] Please refer to the appendix Figure 10 ; The usage method of this embodiment: In the initial state, the magnetic stirring rods 41 are located around the upper enzymatic hydrolysis cover 2. At this time, under the restriction of the lifting sleeve 6, the buckle 411 of the magnetic stirring rod 41 contacts the first bevel block, causing the upper cover tube 51 to be in a tightened state, thereby clamping the magnetic stirring rod 41. When the upper enzymatic hydrolysis cover 2 carrying the immobilized enzyme is combined with the lower enzymatic hydrolysis chamber 3, the rotation driving member 43 is started, causing the lifting sleeve 6 to move downward and away from the first bevel block. Under the action of the torsion spring, the upper cover tube 51 releases the clamped magnetic stirring rod 41, and each magnetic stirring rod 41 begins to move downward and descend to the bottom of the corresponding limit groove 53, so that each magnetic stirring rod 41 is located on each layer of the lower enzymatic hydrolysis chamber 3. Under the continuous rotation of the rotation driving member 43, the lifting sleeve 6 moves downward to the second bevel block 521 and forms an extrusion on it, so that the limit sleeve 5, the lifting sleeve 6, and the threaded rod 7 are integrated, and then the rotation driving member 43 drives the magnetic stirring rod 41 to rotate inside the enzymatic hydrolysis tank 1 to uniformly release the immobilized enzyme into the enzymatic hydrolysis solution; after the enzymatic hydrolysis work is completed and the immobilized enzyme is recovered, the rotation driving member 43 is rotated in the reverse direction, and the lifting sleeve 6 begins to rise along the threaded rod 7, successively lifting each magnetic stirring rod 41 into the upper enzymatic hydrolysis cover 2. When the buckle 411 of the magnetic stirring rod 41 re-extrudes the first bevel block 511, the retraction rod 513 retracts, causing the upper cover tube 51 to clamp the magnetic stirring rod 41 again.

[0049] The extraction device of collagen peptide in this embodiment realizes the uniform release and recovery of the immobilized enzyme only by switching the forward and reverse rotations of the rotation driving member 43 through the cooperation between the threaded rod 7, the lifting sleeve 6, and the limit sleeve 5.

[0050] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and supplements can still be made, and these improvements and supplements should also be regarded as the protection scope of the present invention.

Claims

1. An extraction device for collagen peptides, including an enzymatic hydrolysis tank, characterized in that, The enzymatic hydrolysis tank includes an upper enzymatic hydrolysis cover and a lower enzymatic hydrolysis chamber, and the upper enzymatic hydrolysis cover is detachably connected to the lower enzymatic hydrolysis chamber; a stirring assembly is provided in the enzymatic hydrolysis tank, and the stirring assembly includes a plurality of magnetic adsorption stirring rods, a lifting driving member, and a rotating driving member. The magnetic adsorption stirring rods are used to adsorb or release immobilized enzymes, the lifting driving member is used to adjust the depth position of each magnetic adsorption stirring rod in the enzymatic hydrolysis tank, and the rotating driving member is used to control the rotation of the magnetic adsorption stirring rods. Among them, at least one magnetic adsorption stirring rod is provided at any depth position in the liquid to be enzymatically hydrolyzed in the enzymatic hydrolysis tank.

2. The extraction device of collagen peptide according to claim 1, wherein, The lifting driving member is a telescopic rod, and one end of the telescopic rod is connected to the magnetic adsorption stirring rod.

3. The extraction device of collagen peptide according to claim 2, characterized in that, The rotating driving member is a driving motor, and a plurality of telescopic rods connecting each magnetic adsorption stirring rod are connected to the driving shaft of the driving motor.

4. The extraction device for collagen peptides according to claim 1, characterized in that, The lifting driving member includes a limit sleeve, a lifting sleeve, and a threaded rod; a plurality of limit grooves are provided on the limit sleeve. Among them, the bottoms of the limit grooves are located in different planes perpendicular to the axial direction of the limit sleeve; the rotation of the threaded rod drives the lifting sleeve to lift along the threaded rod, the rotating driving member drives the threaded rod to rotate, and the bottom of the limit sleeve is connected to the lower enzymatic hydrolysis chamber through a bearing.

5. The extraction device of collagen peptide according to claim 4, wherein, A buckle is provided at the end of the magnetic adsorption stirring rod, and the buckle is adapted to the limit groove; the lifting sleeve is located below each buckle and can push the buckle to move up along the limit groove.

6. The extraction device of collagen peptide according to claim 4, wherein, The limit sleeve includes a lower chamber tube and an upper cover tube, and the lower chamber tube is detachably connected to the upper cover tube.

7. The extraction device of collagen peptide according to claim 4, characterized in that, The threaded rod includes a lower chamber screw and an upper cover screw, and the lower chamber screw is detachably connected to the upper cover screw.

8. The extraction device of collagen peptide according to claim 6, characterized in that, A connecting ring is provided in the upper cover tube, and the connecting ring is connected to the upper enzymatic hydrolysis cover through a bearing. The connecting ring is movably connected to the inner wall of the upper cover tube through a contraction rod. A first beveled edge clamping block is provided on the inner wall of the upper cover tube. When the buckle rises along the first beveled edge clamping block, the upper cover tube can contract towards the axis.

9. The extraction device of collagen peptide according to claim 6, wherein, A second beveled edge clamping block is provided on the inner wall of the lower chamber tube below the bottom of the limit groove. When the lifting sleeve descends along the second beveled edge clamping block, the threaded rod is combined with the limit sleeve.

10. The extraction device of collagen peptide according to claim 1, characterized in that, After the enzymatic hydrolysis starts and the magnetic adsorption stirring rod rotates, the adsorption capacity of the magnetic adsorption stirring rod for the immobilized enzyme gradually decreases.

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