A kind of preparation equipment of yogurt starter

Abstract

The present invention belongs to the technical field of starter preparation, and in particular discloses a preparation device for yogurt starter, including a bio-enzyme fermentation tank, the bio-enzyme fermentation tank including a bio-enzyme fermentation tank body, a stirring component for stirring a mixed liquid is arranged inside the bio-enzyme fermentation tank body, the overall shape of the bio-enzyme fermentation tank is arranged in an inverted cone shape, a drain outlet is arranged at the center of the bottom of the bio-enzyme fermentation tank body, and a plug is clamped at the bottom of the drain outlet. The present invention drives a matching frame to move downward through a scraper frame, and multiple scrapers and multiple matching frames scrape the residual mixed liquid on the inner wall of the bio-enzyme fermentation tank body, and under the limitation of the oblique annular surface, the scraper frame and the matching frame are convenient to scrape the residual mixed liquid on the oblique annular surface, so as to prevent the mixed liquid from remaining inside the bio-enzyme fermentation tank body and avoid the waste of the mixed liquid.

Description

Technical Field

[0001] The invention belongs to the technical field of starter preparation, and in particular relates to equipment for preparing yogurt starter. Background Art

[0002] Yogurt production is a relatively complicated process. Various factors will affect the quality of yogurt. Fermentation is a necessary step in yogurt production. Currently, yogurt fermentation is usually carried out in yogurt fermentation tanks. After the yogurt fermentation is completed, the viscosity of the emulsion is relatively high, which causes the yogurt to stick to the wall.

[0003] The current processing method is that after the fermentation is completed, manual entry is often required to clean the bio-enzyme fermentation tank, which is not only time-consuming and labor-intensive, but also has low work efficiency.

[0004] Therefore, it is necessary to invent a preparation device of a yogurt starter to solve the above problems. Summary of the invention

[0005] In view of the above problems, the present invention provides a preparation device for yogurt starter to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: a preparation device of yogurt starter, comprising a biological enzyme fermentation tank, the biological enzyme fermentation tank comprising a biological enzyme fermentation tank body, a stirring component for stirring and mixing liquid is arranged inside the biological enzyme fermentation tank body, the overall shape of the biological enzyme fermentation tank is arranged in an inverted cone shape, a drain outlet is arranged at the center of the bottom of the biological enzyme fermentation tank body, a plug is clamped at the bottom of the drain outlet, a plurality of pillars are fixed to the bottom of the biological enzyme fermentation tank body, the plurality of pillars are arranged in parallel in a ring, and a plurality of An inner rod, multiple inner rods correspond to multiple pillars one by one, the bottom ends of the inner rods are correspondingly inserted into the tops of the pillars, a ring edge is provided at the bottom of the bio-enzyme fermentation tank body, the bottom ends of multiple inner rods are fixedly connected to the ring edge, the ring edge is wrapped around the outside of the drain outlet, an inner groove corresponding to the inner rod is provided on the inner side of the pillar, an elastic part is provided inside the inner groove, the top end of the elastic part is connected to the bottom end of the inner rod, the top end of the elastic part is connected to the inner bottom surface of the inner groove, the top ends of the multiple inner rods are connected to scraper frames by sliding parts, the outer circumferential sides of the multiple scraper frames are all in contact with the inner wall of the bio-enzyme fermentation tank body, and a matching frame is connected between two adjacent scraper frames.

[0007] Furthermore, the cooperating frame includes a first scraper and a second scraper, and slide grooves are provided at both ends of the scraper. The outer ends of the first scraper and the second scraper are clamped on the inner side of the slide groove at the end of the scraper. The downwardly moving ring edge uses the inner rod to drive the scraper frame downward, and multiple scrapers drive multiple cooperating frames to move downward. The multiple scrapers and multiple cooperating frames scrape the residual mixed liquid on the inner wall of the bio-enzyme fermentation tank body.

[0008] Furthermore, the inner ends of the first scraper and the second scraper are matched with each other, the first scraper and the second scraper are both provided with arc surfaces, and the first scraper and the second scraper are both fitted with the inner wall of the enzyme fermentation tank body by using the arc surfaces.

[0009] Furthermore, an inclined rod is arranged inside the slide groove, two adjacent scraper frames are arranged opposite to each other, and the inclined rods on the inner sides of two opposite slide grooves are arranged opposite to each other, and the distance between the inner ends of the two opposite inclined rods is greater than the distance between the outer ends of the two opposite inclined rods, and a slide plate is sleeved on the outer end surface of the inclined rod, and the top surface and bottom surface of the slide plate are respectively fitted with the inner top surface and the inner bottom surface of the slide groove, and the outer ends of the first scraper and the second scraper are fixed with a convex rod passing through the slide plate, and the outer ends of the convex rod are connected to a pressure plate, and the pressure plate is inside the slide groove, and a plurality of first spring plates are arranged between the pressure plate and the slide plate.

[0010] Furthermore, the first scraper and the second scraper are both configured as L-shaped structures, and the second scraper is inverted on the top of the first scraper, and the first scraper and the second scraper are staggered, and an oblique annular surface is provided at the bottom of the inner wall of the bio-enzyme fermentation tank body, and the outer side surfaces of the first scraper and the second scraper correspond to the oblique annular surface.

[0011] Furthermore, the sliding component includes a limiting frame, which is fixedly installed on the top of the inner rod, a sliding rod is fixed on the inside of the limiting frame, a sleeve rod is fixed to the bottom end of the scraper frame, the bottom end of the sleeve rod is slidably sleeved on the surface of the sliding rod, a spring is sleeved on the surface of the sliding rod, one end of the spring is connected to the sleeve rod, and the other end of the spring is connected to the inner wall of the limiting frame, and a plurality of grooves are provided on the surface of the oblique annular surface, and the limiting frame corresponds to the grooves.

[0012] Furthermore, the stirring component includes a stirring rod, the top end of the stirring rod passes through the top surface of the bio-enzyme fermentation tank body, the top end of the stirring rod is connected to the output end of the motor, the motor is installed on the top surface of the bio-enzyme fermentation tank body by means of a bracket, the top surface of the bio-enzyme fermentation tank body is provided with two relatively arranged feed ports, and the top cover of the feed port is covered with a cover sleeve, the bottom end of the stirring rod corresponds to the plug, two relatively side panels are provided on the inner side of the stirring rod, a plurality of cross bars are fixed on the outer side of the side plate, the plurality of cross bars correspond to and pass through the stirring rod, a ring is provided on the outer side of the stirring rod and is sleeved on the surface of the cross bar, the side plate is connected with a vertical plate by means of a plurality of cross bars, and a second spring piece is connected between the two relatively side plates.

[0013] Furthermore, a side block is fixed to the bottom end of the side plate, a clamping rod is fixed to the inner top surface of the plug, the clamping rod is correspondingly clamped between the two side blocks, a clamping bead is fixed to the surface of the clamping rod, and an inner groove corresponding to the clamping bead is provided on the inner side surface of the side block, and a plurality of convex edges are fixed to the top of the outer circumferential surface of the plug, and the top surface of the convex edge is in contact with the bottom surface of the ring edge.

[0014] Technical effects and advantages of the present invention:

[0015] 1. The present invention drives the matching frame to move downward through the scraper frame, and multiple scrapers and multiple matching frames scrape the residual mixed liquid on the inner wall of the biological enzyme fermentation tank body. Under the limitation of the inclined ring surface, the scraper frame and the matching frame are convenient to scrape the residual mixed liquid on the inclined ring surface, preventing the mixed liquid from remaining on the inner side of the biological enzyme fermentation tank body, avoiding waste of the mixed liquid.

[0016] 2. The present invention uses the elastic force of the first spring sheet to ensure that the outer end face of the first scraper is always in contact with the end face of the scraper frame. At the same time, the elastic force of the first spring sheet also ensures that the outer end face of the second scraper is always in contact with the end face of the scraper frame. The elastic force of the first spring sheet is used to ensure that the arc surface of the matching frame is always in correspondence with the circumferential outer surface of the scraper frame, making it convenient for the downward-moving scraper frame and the matching frame to scrape the mixed liquid on the surface of the oblique annular surface.

[0017] 3. The present invention uses the side plate to drive the side blocks to rotate through the rotating stirring rod. The two side blocks rotate on the surface of the clamping rod, and the side blocks use the inner groove to limit the clamping beads on the surface of the clamping rod, thereby improving the clamping effect of the plug on the drain outlet. At this time, the plug uses multiple convex edges to support the ring edge, and the elastic force of the plug and the elastic member cooperates to support the ring edge, thereby preventing the scraper from moving directly downward inside the enzyme fermentation tank body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is an overall three-dimensional schematic diagram of a biological enzyme fermentation tank according to an embodiment of the present invention;

[0019] Figure 2 Schematic diagram of the internal components of the bio-enzyme fermentation tank according to an embodiment of the present invention;

[0020] Figure 3 Schematic diagram of the ring edge connecting the scraper frame by the inner rod according to the embodiment of the present invention;

[0021] Figure 4 2 is a schematic diagram corresponding to a scraper frame and a matching frame according to an embodiment of the present invention;

[0022] Figure 5 is a schematic diagram of a stirring rod of a stirring component according to an embodiment of the present invention;

[0023] In the figure: 1, bio-enzyme fermentation tank body; 2, drain outlet; 3, plug; 4, pillar; 401, elastic member; 5, inner rod; 6, ring edge; 7, scraper; 8, first scraper; 9, second scraper; 10, slide; 11, oblique rod; 12, slide plate; 13, convex rod; 14, pressure plate; 15, first spring piece; 16, oblique ring surface; 17, limiting frame; 18, slide rod; 19, sleeve rod; 20, spring; 21, slot; 22, stirring rod; 23, motor; 24, feed port; 25, side plate; 26, cross bar; 27, sleeve ring; 28, vertical plate; 29, second spring piece; 30, side block; 31, clamping rod; 32, clamping bead; 33, convex edge. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0025] Example 1

[0026] The invention provides a yogurt starter, comprising a mixed bacterial strain and a fermentation enzyme culture medium. The mixed bacterial strain consists of bulgaricus lactobacillus and thermophilus streptococcus and is stored in a glycerol tube. The ratio of live bacteria per milliliter of bacterial liquid is: the number of live thermophilus streptococcus: the number of live lactobacillus bulgaricus=10:1. The fermentation enzyme culture medium comprises, by weight percentage, maltose: 1% to 7%, glucose: 3% to 4%, lactose: 2% to 8%, skim milk powder: 3% to 7%, whey powder: 1% to 11%, magnesium sulfate: 0.1% to 1%, manganese sulfate: 0.01% to 1%, Tween 80: 0.1% to 1%, and biotin: 0.1% to 1%.

[0027] The preparation method uses the above-mentioned yogurt starter, comprising the following steps:

[0028] S1, adding fermentation enzyme culture medium and a certain amount of water into a biological enzyme fermentation tank to form a fermentation culture solution;

[0029] S2, putting the mixed strains into a bio-enzyme fermentation tank, and fermenting the mixed strains with the fermentation culture liquid in the bio-enzyme fermentation tank to form a mixed liquid, setting the fermentation temperature of the bio-enzyme fermentation tank to 43° C., the speed to 60 to 120 rpm, and adjusting the initial pH of the fermentation to 6.0 with sodium hydroxide;

[0030] S3. After fermentation is completed, the biological enzyme fermentation tank discharges the internal mixed liquid to obtain a yogurt starter.

[0031] Example 2

[0032] The present invention also provides a device for preparing a yogurt starter. Figures 1 to 4 In the invention, a bio-enzyme fermentation tank is included, the bio-enzyme fermentation tank includes a bio-enzyme fermentation tank body 1, a stirring component for stirring a mixed liquid is arranged inside the bio-enzyme fermentation tank body 1, the overall shape of the bio-enzyme fermentation tank is arranged in an inverted cone shape, a drain port 2 is arranged at the center of the bottom of the bio-enzyme fermentation tank body 1, two oppositely arranged feed ports 24 are arranged on the top surface of the bio-enzyme fermentation tank body 1, and a cover sleeve is placed on the top of the feed port 24, and a plug 3 is clamped at the bottom of the drain port 2. The plug 3 is used to block the drain port 2, the cover sleeve is opened, and the mixed liquid is passed into the bio-enzyme fermentation tank body 1 through the feed port 24, the mixed liquid gradually accumulates inside the bio-enzyme fermentation tank body 1, the stirring component stirs the mixed liquid, and the fermentation effect of the mixed liquid inside the bio-enzyme fermentation tank body 1 is improved, and after fermentation for a period of time, a yogurt starter is obtained.

[0033] A plurality of pillars 4 are fixed at the bottom of the bio-enzyme fermentation tank body 1, and the plurality of pillars 4 are arranged in parallel in a ring shape. A plurality of inner rods 5 are arranged on the inner side of the bio-enzyme fermentation tank body 1, and the plurality of inner rods 5 correspond to the plurality of pillars 4 one by one. The bottom ends of the inner rods 5 are correspondingly plugged into the tops of the pillars 4. A ring edge 6 is arranged at the bottom of the bio-enzyme fermentation tank body 1, and the bottom ends of the plurality of inner rods 5 are fixedly connected to the ring edge 6, and the ring edge 6 is wrapped around the outside of the drain outlet 2. An inner groove corresponding to the inner rod 5 is arranged on the inner side of the pillar 4, and an elastic member 401 is arranged inside the inner groove, and the top end of the elastic member 401 is connected to the bottom end of the inner rod 5, and the top end of the elastic member 401 is connected to the inner groove. On the side bottom surface, the tops of the multiple inner rods 5 are connected with a scraper 7 by means of a sliding component, the outer circumferential surfaces of the multiple scrapers 7 are all in contact with the inner wall of the bio-enzyme fermentation tank body 1, and a matching frame is connected between two adjacent scrapers 7, the matching frame includes a first scraper 8 and a second scraper 9, both ends of the scraper 7 are provided with a slide groove 10, the outer ends of the first scraper 8 and the second scraper 9 are both clamped on the inner side of the slide groove 10 at the end of the scraper 7, the downwardly moving ring edge 6 drives the scraper 7 to move downward by means of the inner rod 5, and the multiple scrapers 7 drive the multiple matching frames to move downward, and the multiple scrapers 7 and the multiple matching frames scrape the residual mixed liquid on the inner wall of the bio-enzyme fermentation tank body 1. The elastic force of the elastic member 401 supports the multiple scrapers 7 through the multiple inner rods 5, and since the bottom ends of the multiple inner rods 5 are fixedly connected by means of the ring edge 6, the bottom ends of the multiple inner rods 5 are in the same horizontal plane through the ring edge 6, and at this time, the multiple scrapers 7 are in the same horizontal plane on the inner side of the bio-enzyme fermentation tank body 1. Remove the plug 3 from the bottom of the drain port 2, and the yogurt starter on the inner side of the bio-enzyme fermentation tank body 1 is discharged through the drain port 2, pulling the ring edge 6 downward, and the downwardly moving ring edge 6 uses the inner rod 5 to drive multiple scraping racks 7 to move downward synchronously, and the two adjacent scraping racks 7 drive the matching rack to move downward. During the downward movement, the multiple scraping racks 7 and the multiple matching racks scrape the mixed liquid on the inner wall of the bio-enzyme fermentation tank body 1 to prevent the mixed liquid from remaining on the inner wall of the bio-enzyme fermentation tank body 1, thereby avoiding waste of the mixed liquid.

[0034] exist Figure 3 and Figure 4In the embodiment, the inner ends of the first scraper 8 and the second scraper 9 cooperate with each other, and the first scraper 8 and the second scraper 9 are both provided with arcuate surfaces, and the first scraper 8 and the second scraper 9 both utilize the arcuate surfaces to fit the inner wall of the enzyme fermentation tank body 1, an inclined rod 11 is provided inside the slide 10, and the two adjacent scraper frames 7 are arranged opposite to each other, and the inclined rods 11 inside the two opposite slides 10 are arranged opposite to each other, and the distance between the inner ends of the two opposite inclined rods 11 is greater than the distance between the outer ends of the two, and a slide plate 12 is sleeved on the outer end surface of the inclined rod 11, and the top and bottom surfaces of the slide plate 12 are respectively fitted with the inner top and inner bottom surfaces of the slide 10, and the outer ends of the first scraper 8 and the second scraper 9 are fixed with a convex rod 13 that passes through the slide plate 12, and the outer ends of the convex rod 13 are connected with a pressing plate 14, and the pressing plate 14 is inside the slide 10, and a plurality of first spring pieces 15 are provided between the pressing plate 14 and the slide plate 12. When the ring edge 6 drives the inner rod 5 to move downward, the top end of the inner rod 5 drives the scraper 7 to move downward synchronously by using the sliding component, and the elastic force of the first spring sheet 15 limits the pressing plate 14 and the sliding plate 12. At this time, the outer end faces of the first scraper 8 and the second scraper 9 are in contact with the end face of the scraper 7. At this time, the first scraper 8 and the second scraper 9 are in contact with the inner wall of the bio-enzyme fermentation tank body 1 by using the arc surface. When the scraper 7 drives the matching frame to move downward, the outer circumferential surface of the scraper 7 and the arc surface of the matching frame cooperate to scrape the residual mixed liquid on the inner wall of the bio-enzyme fermentation tank body 1.

[0035] The first scraper 8 and the second scraper 9 are both set to an L-shaped structure, and the second scraper 9 is inverted on the top of the first scraper 8, and the first scraper 8 and the second scraper 9 are staggered. The bottom of the inner wall of the bio-enzyme fermentation tank body 1 is provided with an oblique annular surface 16, and the outer side surfaces of the first scraper 8 and the second scraper 9 correspond to the oblique annular surface 16. The sliding component includes a limiting frame 17, the limiting frame 17 is fixedly mounted on the top of the inner rod 5, a sliding rod 18 is fixed inside the limiting frame 17, a sleeve rod 19 is fixed at the bottom end of the scraper frame 7, the bottom end of the sleeve rod 19 is slidably sleeved on the surface of the sliding rod 18, and a spring 20 is sleeved on the surface of the sliding rod 18, one end of the spring 20 is connected to the sleeve rod 19, and the other end of the spring 20 is connected to the inner wall of the limiting frame 17, and a plurality of card slots 21 are provided on the surface of the oblique annular surface 16, and the limiting frame 17 and the card slots 21 are correspondingly matched. The scraper 7 drives the matching frame to move down to the top of the beveled annular surface 16. When the ring edge 6 pulls the inner rod 5 and the scraper 7 to continue to move down, the limiting frame 17 at the top of the inner rod 5 enters the inside of the slot 21 of the beveled annular surface 16, and the limiting frame 17 uses the slide rod 18 and the sleeve rod 19 to drive the scraper 7 to move down. The outer side surface of the scraper 7 moves down on the surface of the beveled annular surface 16. The reaction force of the beveled annular surface 16 on the scraper 7 makes the scraper 7 slide on the surface of the slide rod 18 using the sleeve rod 19. The scraper 7 gradually moves inward, and the scraper 7 uses the sleeve rod 19 to squeeze the spring 20 on the surface of the slide rod 18 until the bottom surface of the limiting frame 17 fits with the inner bottom surface of the slot 21. At this time, the outer side surface of the scraper 7 scrapes the mixed liquid on the beveled annular surface 16.

[0036] When the scraper 7 uses the slide plate 12 to drive the matching frame to move downward, due to the limitation of the inclined ring surface 16 on multiple scrapers 7, at this time, multiple scrapers 7 gradually approach the center of the bio-enzyme fermentation tank body 1, and two adjacent scrapers 7 gradually approach each other. The two adjacent scrapers 7 use the pressure plate 14 and the convex rod 13 to drive the first scraper 8 and the second scraper 9 to move respectively. At this time, the first scraper 8 and the second scraper 9 move in an offset manner, and the first scraper 8 and the second scraper 9 gradually overlap. The overlapping first scraper 8 and the second scraper 9 both use the arc surface to scrape the mixed liquid on the inclined ring surface 16.

[0037] When the scraper frame 7 drives the matching frame to move downward, the reaction force of the inclined ring surface 16 on the matching frame enables the matching frame to use the convex rod 13 to drive the slide plate 12 to move on the surface of the inclined rod 11. Since the inclined rod 11 is inclined, the inwardly moved slide plate 12 gradually approaches the pressure plate 14 under the limitation of the inclined rod 11. During the inward movement, the slide plate 12 cooperates with the pressure plate 14 to squeeze the first elastic sheet 15. The elastic force of the first elastic sheet 15 makes the outer end face of the first scraper plate 8 always fit with the end face of the scraper frame 7. At the same time, the elastic force of the first elastic sheet 15 also makes the outer end face of the second scraper plate 9 always fit with the end face of the scraper frame 7. The elastic force of the first elastic sheet 15 makes the arc surface of the matching frame always correspond to the circumferential outer surface of the scraper frame 7, so that the downwardly moved scraper frame 7 and the matching frame can scrape the mixed liquid on the surface of the inclined ring surface 16.

[0038] exist Figure 1 , Figure 2 and Figure 5 In the embodiment, the stirring component includes a stirring rod 22, the top of the stirring rod 22 penetrates the top surface of the bio-enzyme fermentation tank body 1, the top of the stirring rod 22 is connected to the output end of the motor 23, the motor 23 is installed on the top surface of the bio-enzyme fermentation tank body 1 by a bracket, the bottom of the stirring rod 22 corresponds to the plug 3, two opposite side plates 25 are arranged on the inner side of the stirring rod 22, a plurality of cross bars 26 are fixed on the outer side of the side plate 25, a plurality of cross bars 26 correspondingly penetrate the stirring rod 22, a collar 27 sleeved on the surface of the cross bar 26 is arranged on the outer side of the stirring rod 22, the side plate 25 is connected with a vertical plate 28 by a plurality of cross bars 26, and a second elastic piece 29 is connected between the two opposite side plates 25. When the motor 23 works, the stirring rod 22 at the output end of the motor 23 rotates inside the bio-enzyme fermentation tank body 1, and the rotating stirring rod 22 stirs the mixed liquid inside the bio-enzyme fermentation tank body 1 by the collar 27 and the vertical plate 28.

[0039] A side block 30 is fixed to the bottom end of the side plate 25, and a clamping rod 31 is fixed to the inner top surface of the plug 3. The clamping rod 31 is correspondingly clamped between the two side blocks 30. A clamping bead 32 is fixed on the surface of the clamping rod 31, and an inner groove corresponding to the clamping bead 32 is provided on the inner side surface of the side block 30. A plurality of convex edges 33 are fixed to the top of the circumferential outer side surface of the plug 3, and the top surface of the convex edge 33 is in contact with the bottom surface of the ring edge 6. When the plug 3 is clamped in the corresponding position of the drain outlet 2, the clamping rod 31 on the inner top surface of the plug 3 enters into the drain outlet 2, and the top of the clamping rod 31 is inserted between the two side blocks 30. At this time, the two side blocks 30 are gradually separated, and the two separated side blocks 30 use the side plates 25 to pull the second spring pieces 29. The second spring pieces 29 stretch out, and the moving side plates 25 drive the cross bar 26 to move inside the ring 27, and the moving cross bar 26 drives the vertical plate 28 to stir the rod 22 until the beads 32 on the clamping rod 31 correspond to the inner grooves of the two side blocks 30. At this time, the elastic force of the second spring pieces 29 makes the two side blocks 30 cooperate to squeeze the clamping rod 31.

[0040] The rotating stirring rod 22 uses the side plate 25 to drive the side block 30 to rotate. The two side blocks 30 rotate on the surface of the clamping rod 31, and the side block 30 uses the inner groove to limit the clamping bead 32 on the surface of the clamping rod 31, thereby improving the clamping effect of the plug 3 on the drain outlet 2. At this time, the plug 3 uses multiple convex edges 33 to support the ring edge 6, and the elastic force of the plug 3 and the elastic member 401 cooperates to support the ring edge 6.

[0041] Working principle of the present invention:

[0042] Reference Figures 1 to 5 As shown, the drain port 2 is correspondingly blocked by the plug 3, the cover sleeve is opened, and the mixed liquid is passed into the interior of the bio-enzyme fermentation tank body 1 through the feed port 24, and the mixed liquid gradually accumulates on the inner side of the bio-enzyme fermentation tank body 1, the motor 23 works, and the stirring rod 22 at the output end of the motor 23 rotates on the inner side of the bio-enzyme fermentation tank body 1, and the rotating stirring rod 22 stirs the mixed liquid on the inner side of the bio-enzyme fermentation tank body 1 by using the sleeve ring 27 and the vertical plate 28, so as to improve the fermentation effect of the mixed liquid on the inner side of the bio-enzyme fermentation tank body 1, and after fermentation for a period of time, a yogurt starter is obtained.

[0043] Remove the plug 3 from the bottom of the drain port 2, and the yogurt starter on the inner side of the bio-enzyme fermentation tank body 1 is discharged through the drain port 2, pulling the ring edge 6 downward, and the downwardly moving ring edge 6 uses the inner rod 5 to drive multiple scraping racks 7 to move downward synchronously, and the two adjacent scraping racks 7 drive the matching rack to move downward, and the multiple scraping racks 7 and the multiple matching racks scrape the mixed liquid on the inner wall of the bio-enzyme fermentation tank body 1 during the downward movement.

[0044] The scraper 7 drives the matching frame to move down to the top of the beveled annular surface 16. When the ring edge 6 pulls the inner rod 5 and the scraper 7 to continue to move down, the limiting frame 17 at the top of the inner rod 5 enters the inside of the slot 21 of the beveled annular surface 16, and the limiting frame 17 uses the slide rod 18 and the sleeve rod 19 to drive the scraper 7 to move down. The outer side surface of the scraper 7 moves down on the surface of the beveled annular surface 16. The reaction force of the beveled annular surface 16 on the scraper 7 makes the scraper 7 slide on the surface of the slide rod 18 using the sleeve rod 19. The scraper 7 gradually moves inward, and the scraper 7 uses the sleeve rod 19 to squeeze the spring 20 on the surface of the slide rod 18 until the bottom surface of the limiting frame 17 fits with the inner bottom surface of the slot 21. At this time, the outer side surface of the scraper 7 scrapes the mixed liquid on the beveled annular surface 16.

[0045] When the scraper 7 uses the slide plate 12 to drive the matching frame to move downward, due to the limitation of the inclined ring surface 16 on multiple scrapers 7, at this time, multiple scrapers 7 gradually approach the center of the bio-enzyme fermentation tank body 1, and two adjacent scrapers 7 gradually approach each other. The two adjacent scrapers 7 use the pressure plate 14 and the convex rod 13 to drive the first scraper 8 and the second scraper 9 to move respectively. At this time, the first scraper 8 and the second scraper 9 move in an offset manner, and the first scraper 8 and the second scraper 9 gradually overlap. The overlapping first scraper 8 and the second scraper 9 both use the arc surface to scrape the mixed liquid on the inclined ring surface 16.

[0046] When the scraper frame 7 drives the matching frame to move downward, the reaction force of the inclined ring surface 16 on the matching frame enables the matching frame to use the convex rod 13 to drive the slide plate 12 to move on the surface of the inclined rod 11. Since the inclined rod 11 is inclined, the inwardly moved slide plate 12 gradually approaches the pressure plate 14 under the limitation of the inclined rod 11. During the inward movement, the slide plate 12 cooperates with the pressure plate 14 to squeeze the first elastic sheet 15. The elastic force of the first elastic sheet 15 makes the outer end face of the first scraper plate 8 always fit with the end face of the scraper frame 7. At the same time, the elastic force of the first elastic sheet 15 also makes the outer end face of the second scraper plate 9 always fit with the end face of the scraper frame 7. The elastic force of the first elastic sheet 15 makes the arc surface of the matching frame always correspond to the circumferential outer surface of the scraper frame 7, so that the downwardly moved scraper frame 7 and the matching frame can scrape the mixed liquid on the surface of the inclined ring surface 16.

[0047] The above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them.

Claims

1. A preparation device for a yogurt starter, comprising a biological enzyme fermentation tank, characterized in that: The bio-enzyme fermentation tank comprises a bio-enzyme fermentation tank body (1), a stirring component for stirring and mixing liquid is arranged inside the bio-enzyme fermentation tank body (1), the overall shape of the bio-enzyme fermentation tank is arranged in an inverted cone shape, a drain outlet (2) is arranged at the center of the bottom of the bio-enzyme fermentation tank body (1), a plug (3) is clamped at the bottom of the drain outlet (2), a plurality of pillars (4) are fixed to the bottom of the bio-enzyme fermentation tank body (1), the plurality of pillars (4) are arranged in parallel in a ring, a plurality of inner rods (5) are arranged inside the bio-enzyme fermentation tank body (1), the plurality of inner rods (5) correspond to the plurality of pillars (4) one by one, and the bottom ends of the inner rods (5) are correspondingly plugged into the pillars. (4) top, the bottom of the bio-enzyme fermentation tank body (1) is provided with a ring edge (6), the bottom ends of the plurality of inner rods (5) are fixedly connected to the ring edge (6), the ring edge (6) is wrapped around the outside of the drain outlet (2), the inner side of the pillar (4) is provided with an inner groove corresponding to the inner rod (5), the inner groove is provided with an elastic member (401), the top end of the elastic member (401) is connected to the bottom end of the inner rod (5), the top end of the elastic member (401) is connected to the inner bottom surface of the inner groove, the top ends of the plurality of inner rods (5) are connected to a scraper (7) by means of a sliding member, the circumferential outer sides of the plurality of scrapers (7) are all in contact with the inner wall of the bio-enzyme fermentation tank body (1), and a matching frame is connected between two adjacent scrapers (7); The matching frame comprises a first scraper (8) and a second scraper (9), both ends of the scraper frame (7) are provided with a slide groove (10), the outer ends of the first scraper (8) and the second scraper (9) are both clamped on the inner side of the slide groove (10) at the end of the scraper frame (7), the downwardly moving ring edge (6) drives the scraper frame (7) to move downward by using the inner rod (5), the multiple scraper frames (7) drive the multiple matching frames to move downward, and the multiple scraper frames (7) and the multiple matching frames scrape the residual mixed liquid on the inner wall of the bio-enzyme fermentation tank body (1); The inner ends of the first scraper (8) and the second scraper (9) are matched and correspond to each other, the first scraper (8) and the second scraper (9) are both provided with arc-shaped surfaces, and the first scraper (8) and the second scraper (9) are both fitted with the inner wall of the bio-enzyme fermentation tank body (1) by using the arc-shaped surfaces; An inclined rod (11) is arranged inside the slide groove (10), two adjacent scraper frames (7) are arranged opposite to each other, the inclined rods (11) inside the two opposite slide grooves (10) are arranged opposite to each other, the distance between the inner ends of the two opposite inclined rods (11) is greater than the distance between the outer ends thereof, a slide plate (12) is sleeved on the outer end surface of the inclined rod (11), the top surface and the bottom surface of the slide plate (12) are respectively fitted with the inner top surface and the inner bottom surface of the slide groove (10), the outer ends of the first scraper (8) and the second scraper (9) are both fixed with a convex rod (13) penetrating the slide plate (12), the outer ends of the convex rod (13) are connected with a pressing plate (14), the pressing plate (14) is inside the slide groove (10), and a plurality of first spring plates (15) are arranged between the pressing plate (14) and the slide plate (12); The first scraper (8) and the second scraper (9) are both configured as L-shaped structures, and the second scraper (9) is inverted on the top of the first scraper (8), and the first scraper (8) and the second scraper (9) are staggered, and an oblique annular surface (16) is provided at the bottom of the inner side wall of the bio-enzyme fermentation tank body (1), and the outer side surfaces of the first scraper (8) and the second scraper (9) correspond to the oblique annular surface (16).

2. The preparation device of yogurt starter according to claim 1, characterized in that: The sliding component comprises a limiting frame (17), the limiting frame (17) being fixedly mounted on the top end of the inner rod (5), a sliding rod (18) being fixed inside the limiting frame (17), a sleeve rod (19) being fixed at the bottom end of the scraper frame (7), the bottom end of the sleeve rod (19) being slidably sleeved on the surface of the sliding rod (18), a spring (20) being sleeved on the surface of the sliding rod (18), one end of the spring (20) being connected to the sleeve rod (19), and the other end of the spring (20) being connected to the inner side wall of the limiting frame (17), a plurality of slots (21) being arranged on the surface of the oblique annular surface (16), and the limiting frame (17) and the slots (21) being correspondingly matched.

3. The preparation device of yogurt starter according to claim 1, characterized in that: The stirring component comprises a stirring rod (22), the top end of the stirring rod (22) passes through the top surface of the bio-enzyme fermentation tank body (1), the top end of the stirring rod (22) is connected to the output end of the motor (23), the motor (23) is installed on the top surface of the bio-enzyme fermentation tank body (1) by means of a bracket, the top surface of the bio-enzyme fermentation tank body (1) is provided with two oppositely arranged feed ports (24), and the top of the feed port (24) is covered with a cover sleeve, the bottom end of the stirring rod (22) corresponds to the plug (3), the inner side of the stirring rod (22) is provided with two opposite side plates (25), the outer side surface of the side plate (25) is fixed with a plurality of cross bars (26), the plurality of cross bars (26) correspondingly pass through the stirring rod (22), the outer side surface of the stirring rod (22) is provided with a sleeve (27) sleeved on the surface of the cross bar (26), the side plate (25) is connected with a vertical plate (28) by means of the plurality of cross bars (26), and a second elastic piece (29) is connected between the two opposite side plates (25).

4. The preparation device of yogurt starter according to claim 3, characterized in that: A side block (30) is fixed to the bottom end of the side plate (25), a clamping rod (31) is fixed to the inner top surface of the plug (3), the clamping rod (31) is correspondingly clamped between the two side blocks (30), a clamping bead (32) is fixed to the surface of the clamping rod (31), and an inner side surface of the side block (30) is provided with an inner groove corresponding to the clamping bead (32), and a plurality of convex edges (33) are fixed to the top of the circumferential outer side surface of the plug (3), and the top surface of the convex edge (33) is in contact with the bottom surface of the ring edge (6).

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