Automatic preparation device for high-temperature and high-pressure modified starch

Abstract

The invention provides a high-temperature and high-pressure modified starch automatic preparation device, and relates to the field of starch preparation, the high-temperature and high-pressure modified starch automatic preparation device comprises a high-temperature and high-pressure reaction tank, the top of the high-temperature and high-pressure reaction tank is fixedly connected with a bridge, the side wall of the bridge is fixedly provided with a driving motor, and the middle of the bridge is rotatably connected with a transmission shaft; the end, penetrating into the high-temperature and high-pressure reaction tank, of the transmission shaft is connected with a stirring mechanism, and the driving motor and the transmission shaft are in transmission fit through a belt pulley assembly. The driving motor works to drive the transmission shaft to drive the hollow shaft column to rotate, the hollow shaft column can drive the stirring shaft to rotate during rotation, and the stirring shaft can be engaged with the gear II through the gear I during rotation, so that rotation of the stirring shaft is realized, and starch raw materials are stirred through the stirring blades; the telescopic shaft can stretch out and draw back relative to the stirring shaft under the extrusion of the cam, so that the purpose of pushing the scraping plate to clean the inner wall of the high-temperature and high-pressure reaction tank is achieved.

Description

Technical Field

[0001] The present invention relates to the field of starch preparation, and more particularly, to an automatic preparation device for high-temperature and high-pressure modified starch. Background Art

[0002] After being treated by a certain method, modified starch changes its original physical or chemical properties to varying degrees. On the basis of the inherent properties of natural starch, in order to improve the performance of starch and expand its application scope, physical, chemical or enzymatic treatment is used to introduce new functional groups onto the starch molecules or change the starch molecular size and starch granule properties, thereby changing the natural properties of starch. When preparing starch, it is necessary to place the starch milk in a high-temperature, high-humidity and high-pressure environment to make the starch milk evenly heated, and at the same time add auxiliary materials.

[0003] Therefore, when preparing starch, stirring is required to effectively modify the starch. However, in traditional preparation equipment, manual feeding is required, resulting in a reduction in the production efficiency of starch. Therefore, we have made improvements in this regard and proposed an automatic preparation device for high-temperature and high-pressure modified starch. Summary of the Invention

[0004] The purpose of the present invention is to provide an automatic preparation device for high-temperature and high-pressure modified starch, which solves the problem of low production efficiency of traditional starch preparation equipment.

[0005] Specifically, this application is as follows:

[0006] It includes a high-temperature and high-pressure reaction tank. A bridge is fixedly connected to the top of the high-temperature and high-pressure reaction tank. A driving motor is fixedly installed on the side wall of the bridge. A transmission shaft is rotatably connected to the middle of the bridge. One end of the transmission shaft passing into the high-temperature and high-pressure reaction tank is connected to a stirring mechanism. The driving motor and the transmission shaft are in transmission cooperation through a pulley assembly. It further includes:

[0007] A batching component, connected to the side wall of the bridge, for supplying batching;

[0008] A material taking component, slidably installed outside the transmission shaft, for taking out the materials inside the batching component;

[0009] A feed pipe, connected to the top of the high-temperature and high-pressure reaction tank, which can cooperate with the material taking component to put the materials into the high-temperature and high-pressure reaction tank.

[0010] As a preferred technical solution of this application, the pulley assembly includes a first pulley fixedly connected to the driving motor and a second pulley fixedly connected to the top of the transmission shaft. The first pulley and the second pulley are connected by a belt in transmission. Installing the driving motor on the side wall of the bridge can improve the stability of the driving motor. At the same time, using the pulley assembly for transmission can achieve the purpose of speed change.

[0011] As a preferred technical solution of the present application, the stirring mechanism includes a hollow shaft column fixedly connected to the bottom of the transmission shaft, the side wall of the hollow shaft column is rotatably connected to the stirring shaft, the side wall of the stirring shaft is fixedly installed with a stirring blade, the inner side wall of the stirring shaft is also slidably installed with a telescopic shaft, one end of the telescopic shaft is fixedly connected to a scraper, and the other end of the telescopic shaft is fixedly connected to gear 1. The rotation of the hollow shaft column can drive the stirring shaft and the stirring blade to move, and when gear 1 at the top of the telescopic shaft engages with gear 2, the stirring shaft can be driven to rotate.

[0012] As a preferred technical solution of the present application, the stirring mechanism also includes a secondary shaft fixedly connected to the bottom wall of the high-temperature and high-pressure reaction tank, and the side wall of the secondary shaft is fixedly connected to gear 2, and gear 2 is meshed with gear 1. Gear 2 is fixed, and gear 1 moves, and it will rotate when it moves, thereby achieving the purpose of driving the stirring shaft.

[0013] As a preferred technical solution of the present application, the side wall of the secondary shaft is also fixedly connected with a cam, and the cam is in contact with the telescopic shaft. The telescopic shaft is elastically matched with the stirring shaft through a spring 1. The spring 1 can provide elastic potential energy for the telescopic shaft, so that the telescopic shaft can be pressed against the cam. The cam can be used to intermittently push the telescopic shaft, so that the scraper can intermittently clean the side wall of the high-temperature and high-pressure reaction tank.

[0014] As a preferred technical solution of the present application, the dosing component includes a dosing tank clamped on the side wall of the bridge frame, the bottom of the dosing tank is threadedly connected to an end cover, the middle of the end cover is plugged with a feeding pipe, the top of the feeding pipe is fixedly connected to a plug, the bottom of the plug is fixedly connected to a spring 2, the plug is elastically matched with the end cover through the spring 2, and the spring 2 can make the plug close the dosing tank in a free state.

[0015] As a preferred technical solution of the present application, the side wall of the end cover is rotatably connected to a handle through a torsion shaft, and the handle is fitted to the outer wall of the material extraction tube. When the blockage is opened, the material can be taken out through the material extraction tube. The handle is connected by torsion rotation, and the handle can be automatically reset, thereby effectively closing the blockage.

[0016] As a preferred technical solution of the present application, the material taking component includes an electric telescopic rod fixedly connected to the top of the high-temperature and high-pressure reaction tank. The top of the electric telescopic rod is fixedly connected with a push plate. A support arm is carried on the top of the push plate. A spline is fixedly connected to the side wall of the transmission shaft. The top and bottom of the spline are both triangular structures. A clamping groove adapted to the spline is formed in the inner side wall of the support arm, and the top and bottom of the support arm are both smooth inclined surfaces. One end of the support arm is fixedly connected with a material taking hopper. The bottom of the material taking hopper has a covering hopper. A spring three is fixedly connected to the inner side wall of the material taking hopper. The top of the spring three is fixedly connected with a blocking plate. When the blocking plate fits the material taking hopper, the material taking hopper is closed. The use of the covering hopper can facilitate the docking with the feed pipe. When the support arm is clamped with the spline, the material taking hopper can be driven to move to take raw materials from different batching tanks. The spring three can drive the blocking plate to close the material taking hopper. The feed pipe can be inserted into the material taking hopper to push the blocking plate open.

[0017] As a preferred technical solution of the present application, a spring four is fixedly connected to the inner side wall of the feed pipe. The bottom of the spring four is fixedly connected with an anti-overflow cover. In the free telescopic state, the spring four can make the anti-overflow cover close the feed pipe.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] In the solution of the present application:

[0020] Through the settings of the high-temperature and high-pressure reaction tank, the bridge, the driving motor, the transmission shaft, the stirring mechanism, the batching component, the material taking component and the feed pipe, the starch undergoes high-temperature denaturation in the high-temperature and high-pressure reaction tank. During the denaturation, the driving motor works, and driving the transmission shaft can drive the hollow shaft column to rotate. When the hollow shaft column rotates, it can drive the stirring shaft to rotate. When the stirring shaft rotates, it can drive the gear one to engage with the gear two, thereby realizing the rotation of the stirring shaft. The starch raw materials are stirred by the stirring blades. At the same time, when the stirring shaft rotates, the telescopic shaft will stretch relative to the stirring shaft under the extrusion of the cam, so as to achieve the purpose of pushing the scraping plate to clean the inner wall of the high-temperature and high-pressure reaction tank. At the same time, when the scraping plate changes its position, it can stir the starch at different positions. When it is necessary to add batching, the electric push rod extends, so that the push plate pushes the support arm to move upward. When the support arm is clamped at the spline position, it can rotate with the transmission shaft to make the material taking hopper move to the batching tank position. When taking materials, the electric push rod continues to extend, so that the support arm disengages from the spline. At this time, the material taking hopper can push the rocker handle upward to open the blockage and automatically take materials. Similarly, when the electric push rod contracts, the material taking hopper moves to the position of the material taking pipe and moves downward. The material taking pipe pushes the blocking plate open, so that the materials in the material taking hopper automatically enter the material taking pipe. The gravity of the materials can push the anti-overflow cover to open automatically, realizing automatic feeding. When not in use, the anti-overflow cover will automatically close under the elastic potential energy of the spring four, so as to achieve the purpose of preventing overflow. Description of the Drawings

[0021] Figure 1 A schematic diagram of the three-dimensional structure of a high-temperature and high-pressure modified starch automatic preparation device provided in this application;

[0022] Figure 2 A schematic diagram of the stirring mechanism structure of a high-temperature and high-pressure modified starch automatic preparation device provided in this application;

[0023] Figure 3 A schematic diagram of the partial structure of a stirring mechanism of a high-temperature and high-pressure modified starch automatic preparation device provided in the present application;

[0024] Figure 4 A high temperature and high pressure modified starch automatic preparation device provided in this application Figure 3 The enlarged structural diagram at A in the middle;

[0025] Figure 5 A schematic cross-sectional structure diagram of a high-temperature and high-pressure modified starch automatic preparation device provided in the present application;

[0026] Figure 6 A schematic diagram of the matching structure of a hollow shaft column and a stirring shaft of a high-temperature and high-pressure modified starch automatic preparation device provided in the present application;

[0027] Figure 7 A schematic diagram of the structure of the batching component and the material taking component of a high-temperature and high-pressure modified starch automatic preparation device provided in the present application;

[0028] Figure 8 A schematic cross-sectional structure diagram of a batching component and a material taking component of a high-temperature and high-pressure modified starch automatic preparation device provided in the present application;

[0029] Figure 9 This is a schematic diagram of the partially cutaway structure of a batching tank of a high-temperature and high-pressure modified starch automatic preparation device provided in the present application.

[0030] Indicated in the figure:

[0031] 10. High temperature and high pressure reaction tank; 11. Bridge frame; 12. Driving motor; 13. Transmission shaft; 14. Pulley assembly;

[0032] 20. stirring mechanism; 21. hollow shaft column; 22. stirring shaft; 23. stirring blade; 24. telescopic shaft; 25. scraper; 26. gear 1; 27. secondary shaft; 28. gear 2; 29. ​​cam; 210. spring 1;

[0033] 30. Batching component; 31. Batching tank; 32. End cover; 33. Material taking pipe; 34. Blockage; 35. Spring 2; 36. Crank handle;

[0034] 40. Material taking component; 41. Electric telescopic rod; 42. Push plate; 43. Support arm; 44. Spline; 45. Material taking hopper; 46. Cover hopper; 47. Spring III; 48. Plug plate;

[0035] 50. Feed pipe; 51. Spring IV; 52. Anti - overflow cover. Detailed implementation manners

[0036] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention.

[0037] Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the claimed present invention, but merely represents some embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0038] It should be noted that, without conflict, the embodiments in the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0039] It should be noted that: Similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0040] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by terms such as "upper", "lower", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the product of the present invention is normally placed, or the orientation or positional relationship commonly understood by those skilled in the art. Such terms are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. In addition, terms such as "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0041] Please refer to Figures 1 to 9 , the present invention provides a technical solution: An automatic preparation device for high - temperature and high - pressure modified starch, including a high - temperature and high - pressure reaction tank 10. A bridge 11 is fixedly connected to the top of the high - temperature and high - pressure reaction tank 10. A driving motor 12 is fixedly installed on the side wall of the bridge 11. A transmission shaft 13 is rotatably connected to the middle of the bridge 11. One end of the transmission shaft 13 passing into the high - temperature and high - pressure reaction tank 10 is connected to a stirring mechanism 20. The driving motor 12 and the transmission shaft 13 are in transmission cooperation through a pulley assembly 14. It further includes:

[0042] The batching component 30 is connected to the side wall of the bridge 11 and is used for supplying batching.

[0043] The material taking component 40 is slidably installed outside the transmission shaft 13 and is used for taking out the materials inside the batching component 30.

[0044] The feed pipe 50 is connected to the top of the high-temperature and high-pressure reaction tank 10 and can cooperate with the material taking component 40 to put the materials into the high-temperature and high-pressure reaction tank 10.

[0045] As a preferred embodiment, on the basis of the above method, further, the pulley assembly 14 includes a first pulley fixedly connected to the driving motor 12 and a second pulley fixedly connected to the top of the transmission shaft 13. The first pulley and the second pulley are connected by belt drive. Installing the driving motor 12 on the side wall of the bridge 11 can improve the stability of the driving motor 12, and at the same time, using the pulley assembly 14 for transmission can achieve the purpose of speed change.

[0046] As a preferred embodiment, on the basis of the above method, further, the stirring mechanism 20 includes a hollow shaft column 21 fixedly connected to the bottom of the transmission shaft 13. The side wall of the hollow shaft column 21 is rotatably connected with a stirring shaft 22. The side wall of the stirring shaft 22 is fixedly installed with stirring blades 23. A telescopic shaft 24 is also slidably installed on the inner side wall of the stirring shaft 22. One end of the telescopic shaft 24 is fixedly connected with a scraper 25, and the other end of the telescopic shaft 24 is fixedly connected with a first gear 26. When the hollow shaft column 21 rotates, it can drive the stirring shaft 22 and the stirring blades 23 to move. When the first gear 26 at the top end of the telescopic shaft 24 meshes with the second gear 28, it can drive the stirring shaft 22 to rotate.

[0047] As a preferred embodiment, on the basis of the above method, further, the stirring mechanism 20 further includes a secondary shaft 27 fixedly connected to the inner bottom wall of the high-temperature and high-pressure reaction tank 10. A second gear 28 is fixedly connected to the side wall of the secondary shaft 27. The second gear 28 meshes with the first gear 26. The second gear 28 is fixed and the first gear 26 moves. When moving, it will rotate to achieve the purpose of driving the stirring shaft 22.

[0048] A cam 29 is also fixedly connected to the side wall of the secondary shaft 27. The cam 29 is in contact and cooperation with the telescopic shaft 24. The telescopic shaft 24 is elastically cooperated with the stirring shaft 22 through a first spring 210. The first spring 210 can provide elastic potential energy for the telescopic shaft 24, so that the telescopic shaft 24 can press against the cam 29. Using the cam 29 can intermittently push the telescopic shaft 24, so that the scraper 25 intermittently cleans the side wall of the high-temperature and high-pressure reaction tank 10.

[0049] As a preferred embodiment, on the basis of the above method, further, the batching component 30 includes a batching tank 31 clamped to the side wall of the bridge 11. A end cover 32 is threadedly connected to the bottom of the batching tank 31. A material taking pipe 33 is inserted in the middle of the end cover 32. A plug 34 is fixedly connected to the top of the material taking pipe 33. A second spring 35 is fixedly connected to the bottom of the plug 34. The plug 34 is elastically matched with the end cover 32 through the second spring 35. The second spring 35 can make the plug 34 close the batching tank 31 in a free state.

[0050] A torsion handle 36 is rotatably connected to the side wall of the end cover 32 through a torsion rotating shaft. The torsion handle 36 fits on the outer wall of the material taking pipe 33. When the plug 34 is opened, the material can be taken out through the material taking pipe 33. By using a torsion connection to connect the torsion handle 36, the torsion handle 36 can automatically reset, so that the plug 34 can be effectively closed.

[0051] The material taking component 40 includes an electric telescopic rod 41 fixedly connected to the top of the high-temperature and high-pressure reaction tank 10. A push plate 42 is fixedly connected to the top of the electric telescopic rod 41. An arm 43 is carried on the top of the push plate 42. A spline 44 is fixedly connected to the side wall of the transmission shaft 13. The top and bottom of the spline 44 are both triangular structures. A clamping groove adapted to the spline 44 is formed in the inner side wall of the arm 43. The top and bottom of the arm 43 are both smooth inclined surfaces. One end of the arm 43 is fixedly connected to a material taking hopper 45. A cover hopper 46 is provided at the bottom of the material taking hopper 45. A third spring 47 is fixedly connected to the inner side wall of the material taking hopper 45. A blocking plate 48 is fixedly connected to the top of the third spring 47. When the blocking plate 48 fits on the material taking hopper 45, the material taking hopper 45 is closed. By using the cover hopper 46, it is convenient to dock with the feed pipe 50. When the arm 43 is clamped to the spline 44, the material taking hopper 45 can be driven to move to take raw materials from different batching tanks 31. The third spring 47 can drive the blocking plate 48 to close the material taking hopper. The feed pipe 50 can be inserted into the material taking hopper 45 to push the blocking plate 48 to open.

[0052] A fourth spring 51 is fixedly connected to the inner side wall of the feed pipe 50. An anti-overflow cover 52 is fixedly connected to the bottom of the fourth spring 51. The fourth spring 51 can make the anti-overflow cover 52 close the feed pipe 50 in a free telescopic state.

[0053] Specifically, when the high-temperature and high-pressure modified starch automatic preparation device is in operation / use: The starch undergoes high-temperature modification in the high-temperature and high-pressure reaction tank 10. During the modification, the driving motor 12 operates, and driving the transmission shaft 13 can drive the hollow shaft column 21 to rotate. When the hollow shaft column 21 rotates, it can drive the stirring shaft 22 to rotate. When the stirring shaft 22 rotates, it can engage with the gear two 28 through the gear one 26, thereby realizing the rotation of the stirring shaft 22. The starch raw material is stirred by the stirring blades 23. At the same time, when the stirring shaft 22 rotates, the telescopic shaft 24 will expand and contract relative to the stirring shaft 22 under the extrusion of the cam 29, so as to achieve the purpose of pushing the scraping plate 25 to clean the inner wall of the high-temperature and high-pressure reaction tank 10. At the same time, when the scraping plate 25 changes its position, it can stir the starch at different positions. When it is necessary to add ingredients, the electric telescopic rod 41 extends, causing the push plate 42 to push the support arm 43 to move upward. When the support arm 43 is clamped at the spline 44 position, it can rotate with the transmission shaft 13 to move the material taking hopper 45 to the position of the ingredient tank 31. When taking materials, the electric telescopic rod 41 continues to extend, causing the support arm 43 to disengage from the spline 44. At this time, the material taking hopper 45 can push the lever 36 upward to open the blockage 34 and automatically take materials. Similarly, when the electric telescopic rod 41 contracts, the material taking hopper 45 moves to the position of the feed pipe 50 and moves downward. The feed pipe 50 pushes the blocking plate 48 to open, enabling the materials in the material taking hopper 45 to automatically enter the feed pipe 50. The gravity of the materials can push the anti-overflow cover 52 to open automatically, realizing automatic feeding. When not in use, the anti-overflow cover 52 will automatically close under the elastic potential energy of the spring four 51, so as to achieve the purpose of preventing overflow.

[0054] The above embodiments are only used to illustrate the present invention rather than to limit the technical solutions described in the present invention. Although this specification has described the present invention in detail with reference to the above respective embodiments, the present invention is not limited to the above specific implementation manners. Therefore, any modification or equivalent replacement to the present invention; and all technical solutions and their improvements that do not depart from the spirit and scope of the invention are covered by the scope of the claims of the present invention.

Claims

1. A high-temperature and high-pressure modified starch automatic preparation device, comprising a reaction tank (10), characterized in that: The top of the high-temperature and high-pressure reaction tank (10) is fixedly connected to a bridge frame (11), a driving motor (12) is fixedly installed on the side wall of the bridge frame (11), a transmission shaft (13) is rotatably connected to the middle of the bridge frame (11), one end of the transmission shaft (13) that penetrates the high-temperature and high-pressure reaction tank (10) is connected to a stirring mechanism (20), and the driving motor (12) and the transmission shaft (13) are matched for transmission via a pulley assembly (14), and further comprising: A batching component (30) connected to the side wall of the bridge (11) and used for supplying the batching; A material taking component (40) is slidably mounted on the outside of the transmission shaft (13) and is used to take out the material inside the batching component (30); The feed pipe (50) is connected to the top of the high-temperature and high-pressure reaction tank (10) and can cooperate with the material taking component (40) to feed the material into the high-temperature and high-pressure reaction tank (10).

2. The automatic preparation device for high temperature and high pressure modified starch according to claim 1, characterized in that: The pulley assembly (14) comprises a first pulley fixedly connected to the drive motor (12) and a second pulley fixedly connected to the top of the transmission shaft (13), and the first pulley and the second pulley are connected via a belt transmission.

3. The automatic preparation device for high temperature and high pressure modified starch according to claim 1, characterized in that: The stirring mechanism (20) comprises a hollow shaft column (21) fixedly connected to the bottom of the transmission shaft (13); the side wall of the hollow shaft column (21) is rotatably connected to a stirring shaft (22); a stirring blade (23) is fixedly mounted on the side wall of the stirring shaft (22); a telescopic shaft (24) is slidably mounted on the inner side wall of the stirring shaft (22); one end of the telescopic shaft (24) is fixedly connected to a scraper (25); and the other end of the telescopic shaft (24) is fixedly connected to a gear 1 (26).

4. The automatic preparation device for high temperature and high pressure modified starch according to claim 3, characterized in that: The stirring mechanism (20) further comprises a secondary shaft (27) fixedly connected to the inner bottom wall of the high-temperature and high-pressure reaction tank (10), a side wall of the secondary shaft (27) being fixedly connected to a second gear (28), and the second gear (28) being meshed with the first gear (26).

5. The automatic preparation device for high temperature and high pressure modified starch according to claim 4, characterized in that: The side wall of the secondary shaft (27) is also fixedly connected with a cam (29), and the cam (29) is in abutment with the telescopic shaft (24), and the telescopic shaft (24) is elastically matched with the stirring shaft (22) through a spring 1 (210).

6. The automatic preparation device for high temperature and high pressure modified starch according to claim 1, characterized in that: The batching component (30) comprises a batching tank (31) clamped on the side wall of the bridge frame (11); the bottom of the batching tank (31) is threadedly connected to an end cover (32); a feeding pipe (33) is inserted in the middle of the end cover (32); a plug (34) is fixedly connected to the top of the feeding pipe (33); a second spring (35) is fixedly connected to the bottom of the plug (34); the plug (34) is elastically matched with the end cover (32) through the second spring (35).

7. The automatic preparation device for high temperature and high pressure modified starch according to claim 6, characterized in that: The side wall of the end cover (32) is rotatably connected to a handle (36) via a torsion shaft. The handle (36) fits against the outer wall of the material taking pipe (33). When the plug (34) is opened, the material can be taken out through the material taking pipe (33).

8. The automatic preparation device for high temperature and high pressure modified starch according to claim 1, characterized in that: The material taking component (40) comprises an electric telescopic rod (41) fixedly connected to the top of the high-temperature and high-pressure reaction tank (10), the top of the electric telescopic rod (41) is fixedly connected to a push plate (42), the top of the push plate (42) is equipped with a support arm (43), the side wall of the transmission shaft (13) is fixedly connected to a spline (44), the top and bottom of the spline (44) are both triangular structures, and the inner side wall of the support arm (43) is provided with a spline (44) that is aligned with the spline (44). ) is adapted to have a slot corresponding to the support arm (43), and the top and bottom of the support arm (43) are both smooth inclined surfaces, one end of the support arm (43) is fixedly connected to a material taking hopper (45), the bottom of the material taking hopper (45) has a cover hopper (46), the inner side wall of the material taking hopper (45) is fixedly connected to a spring three (47), the top of the spring three (47) is fixedly connected to a blocking plate (48), and the blocking plate (48) closes the material taking hopper (45) when it is in contact with the material taking hopper (45).

9. The automatic preparation device for high temperature and high pressure modified starch according to claim 8, characterized in that: The inner side wall of the feed pipe (50) is fixedly connected to a spring four (51), and the bottom of the spring four (51) is fixedly connected to an anti-overflow cover (52). The spring four (51) can enable the anti-overflow cover (52) to close the feed pipe (50) in a freely retractable state.

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