A cleaning mechanism for food additive screening equipment

Abstract

The invention discloses a cleaning mechanism for food additive screening equipment, and relates to the technical field of equipment cleaning. The mechanism comprises an annular screening shell, wherein a screening net for screening food additives is arranged inside the annular screening shell, and is characterized in that a cleaning unit is arranged on the annular screening shell, and the cleaning unit comprises an annular sleeve plate, an annular sleeve plate is rotatably arranged on the top of the annular screening shell, and a retractable cleaning tube body is arranged on the annular sleeve plate, and the cleaning tube body has two states: when the screening net vibrates and screens the food additives, the cleaning tube body is in a contracted state; when the food additives are cleaned on the screening net, the cleaning tube body is in a stretched state to spray a solution for dissolving the food additives onto the screening net, so that the cleaning tube body can clean the screening net; when the screening net is blocked, the cleaning tube body sprays the cleaning solution onto the screening net, and can clean the screening net.

Description

Technical Field

[0001] The invention relates to the technical field of equipment cleaning, in particular to a cleaning mechanism for food additive screening equipment. Background Art

[0002] It is well known that food additive screening equipment is a device that screens food additives according to their volume. When food additives are screened, the particle size that passes through the sieve holes is called the undersize product, and the particle size that remains on the sieve is called the oversize product. After use, the food additive screening equipment needs to be cleaned to ensure the hygiene of the food additives during screening, to ensure that the food additives will not be contaminated during screening, and thus to ensure the safety of the food additives.

[0003] Food additives are often used in production. Magnesium oxide is a type of food additive. The application of magnesium oxide in food mainly includes adjusting pH, increasing expansion, preventing caking, supplementing magnesium, anti-oxidation and helping digestion. After magnesium oxide is added to food additives, due to the characteristics of magnesium oxide, it makes the material (that is, food additives) sticky (that is, there is a certain viscosity after adding magnesium oxide to food additives), so after the food additives come into contact with the screening equipment, there is a certain adhesion between the food additives and the screen, which makes it difficult to clean the screen, thereby affecting the screening efficiency of the food additives.

[0004] For example, the patent with the publication number CN211134198U and the publication date of July 31, 2020, entitled "A Screening Cleaning Equipment for Food Processing", provides a screening cleaning equipment for food processing. The screening cleaning equipment for food processing includes a bottom plate, a dust removal box is fixedly connected to the left side of the top of the bottom plate through a bracket, a screening box is fixedly connected to the top of the dust removal box through a bracket, and a cleaning box is fixedly connected to the right side of the top of the bottom plate through a bracket. The screening cleaning equipment for food processing provided by the patent can cut the material entering the screening cylinder through a screening cylinder and a spiral blade, and can only be discharged through the screening hole after the material size and volume meet the conditions, so as to prevent the material from being too large and difficult to clean. The dirt and dust on the surface of the material can be shaken off by the screen and the vibration motor, reducing the difficulty of cleaning. The dust and soil can be collected by the dust collection box to prevent accumulation in the dust removal box and affect the cleanliness of the material. The material can be rinsed clean by a high-pressure nozzle, and the material can be dried by a heating box and a blower.

[0005] The shortcoming of the existing technology is that, since the food additive (i.e., magnesium oxide) has a certain viscosity, when the magnesium oxide is screened, magnesium oxide often remains on the screen, which causes the screen to be blocked. The screen blockage needs to be cleaned in time, and the cleaning of the screen blockage requires manual cleaning by the staff, which makes the cleaning efficiency of the screen low, thereby resulting in low screening efficiency of magnesium oxide. Summary of the invention

[0006] The purpose of the present invention is to provide a cleaning mechanism for food additive screening equipment to solve the technical problems in the related art.

[0007] In order to achieve the above-mentioned object, the present invention provides the following technical solution: a cleaning mechanism for food additive screening equipment, comprising an annular screening shell, a screening net for screening food additives is arranged in the annular screening shell, a cleaning unit is arranged on the annular screening shell, and the cleaning unit comprises an annular sleeve plate, an annular sleeve plate is rotatably arranged on the top of the annular screening shell, and a retractable cleaning tube body is arranged on the annular sleeve plate, and the cleaning tube body has two states:

[0008] When the screening net vibrates and screens the food additives, the cleaning tube body is in a contracted state;

[0009] When the food additives are cleaned on the screening net, the cleaning tube body is in a stretched state to spray a solution for dissolving the food additives onto the screening net, so that the cleaning tube body can clean the screening net.

[0010] As mentioned above, the cleaning tube body is divided into a first tube body and a second tube body, the first tube body is fixedly mounted on the outer wall of the annular sleeve, and the second tube body is slidably and sealingly mounted in the first tube body and passes through the annular sleeve.

[0011] As mentioned above, the cleaning unit also includes a positioning plate, a positioning plate is provided at the bottom end of the annular sleeve plate, a first driving member is provided inside the positioning plate, a driving wheel is installed at the output end of the first driving member, and the driving wheel is pressed against the outer wall of the annular screening shell.

[0012] As mentioned above, a plurality of driven teeth are evenly arranged on the outer wall of the second tube body, a connecting round rod is arranged on the driving wheel, a driving gear is arranged on the connecting round rod, and the driving gear and each of the driven teeth are meshed with each other.

[0013] As mentioned above, a slide groove is respectively provided at both ends of the driven tooth on the second tube body, and a movable tooth is slidably arranged in each of the two slide grooves.

[0014] As mentioned above, the two movable teeth are connected to the inner wall of the corresponding sliding groove respectively through an elastic member.

[0015] In the above, two straight plates are symmetrically installed on the bottom side of the outer wall of the annular screening shell, a positioning shaft is arranged between the two straight plates, a driven disc is arranged on the positioning shaft, a bottom cover is connected to the driven disc, and the bottom cover has two states:

[0016] When the screening net is vibrating and screening the food additives, the bottom cover is in an open state;

[0017] When food additives are blocked on the screening net, the cleaning tube body cleans the screening net, and the bottom cover seals the annular screening shell.

[0018] As mentioned above, a sealing ring is arranged on the bottom cover, and the sealing ring is used to seal the gap between the bottom cover and the annular screening shell.

[0019] As mentioned above, the straight plate is provided with an active mechanism, and the active mechanism is used to drive the bottom cover to seal the annular screening shell.

[0020] As mentioned above, a limiting mechanism is arranged on the other side of the driven disc on the bottom cover, and the limiting mechanism is used to position the bottom cover on the annular screening shell.

[0021] The beneficial effects of the present invention are as follows: when the screening net vibrates and screens the food additives, the cleaning tube body contracts to prevent the cleaning tube body from affecting the screening of the food additives; when the food additives are blocked on the screening net, the cleaning tube body is stretched to allow the cleaning tube body to extend into the central part of the screening net; a cleaning liquid (i.e., a mixed liquid of hydrochloric acid and pure water in a ratio of 40% hydrochloric acid and 60% pure water) is sprayed onto the screening net through the cleaning tube body; the cleaning liquid reacts with the magnesium oxide on the screening net so that the cleaning liquid completely cleans the magnesium oxide on the screening net; and then clean water is transported to the screening net through the cleaning tube body so that the screening net can be completely cleaned, thereby improving the cleaning efficiency of the screening net. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0023] Figure 1 A schematic diagram of a partial three-dimensional structure of an embodiment provided by the present invention;

[0024] Figure 2 For the present invention Figure 1 Bottom view of

[0025] Figure 3 For the present invention Figure 1 A schematic diagram of the cross-sectional structure of;

[0026] Figure 4 It is a schematic cross-sectional structure diagram of a plurality of cleaning tubes evenly arranged on the annular sleeve of the present invention;

[0027] Figure 5 A schematic diagram of a partial cross-sectional structure of another embodiment provided by the present invention at a first viewing angle;

[0028] Figure 6 For the present invention Figure 5 A schematic diagram of a partially enlarged cross-sectional structure at M;

[0029] Figure 7 A schematic diagram of a partial cross-sectional structure of another embodiment provided by the present invention at a second viewing angle;

[0030] Figure 8 It is a partial cross-sectional structural schematic diagram of the transmission gear and the straight rod position of the present invention;

[0031] Fig. 9 It is a partial cross-sectional structural schematic diagram of the driven gear and the square rod position of the present invention;

[0032] Fig.10 A schematic cross-sectional view of another embodiment of the present invention;

[0033] Fig.11 A schematic cross-sectional structure diagram of a closed circular plate sealing a perforation in another embodiment provided by the present invention.

[0034] Description of reference numerals:

[0035] 1. Annular screening shell; 2. Screening net; 3. Annular sleeve; 4. Cleaning tube body; 5. First tube body; 6. Second tube body; 7. Sprinkling tube; 8. Positioning plate; 9. First driving member; 10. Driving wheel; 11. Driven teeth; 12. Connecting round rod; 13. Driving gear; 14. Slide; 15. Movable teeth; 16. Elastic member; 17. Straight plate; 18. Positioning shaft; 19. Driven disc; 20. Bottom cover; 21. Sealing ring; 22. Second driving member; 23. Auxiliary gear; 24. Passive teeth; 25. Perforation; 26. Transmission gear; 27. Straight rod; 28. Through hole; 29. ​​Lifting rod; 30. Closed circular plate; 31. Driven gear; 32. Square rod; 33. Arc panel; 34. Third driving member; 35. Power gear; 36. Spherical rod; 37. Spherical groove; 38. Limiting round rod. DETAILED DESCRIPTION

[0036] In order to enable those skilled in the art to better understand the technical solution of the present invention, Figure 1To Attachment Fig.11 The present invention is further described in detail.

[0037] An embodiment provided by the present invention relates to a cleaning mechanism for food additive screening equipment.

[0038] The invention comprises an annular screening housing 1, wherein a screening net 2 for screening food additives is arranged in the annular screening housing 1, and a cleaning unit is arranged on the annular screening housing 1, and the cleaning unit comprises an annular sleeve plate 3, and an annular sleeve plate 3 is rotatably arranged at the top of the annular screening housing 1, and a retractable cleaning tube body 4 is arranged on the annular sleeve plate 3, and the cleaning tube body 4 has two states:

[0039] When the screening net 2 vibrates and screens the food additives, the cleaning tube 4 is in a contracted state;

[0040] When food additives are being cleaned on the screening net 2 , the cleaning tube body 4 is in a stretched state to spray a solution for dissolving the food additives onto the screening net 2 , so that the cleaning tube body 4 can clean the screening net 2 .

[0041] Specifically, the food additive screening equipment is a device for vibrating and screening magnesium oxide. Since magnesium oxide is in powder form, a smaller mesh size of the screening net 2 is required, that is, the magnesium oxide powder can pass through the mesh size of the screening net 2, while other impurities remain on the screening net 2. Therefore, the screening net selects a gauze screening net to adapt to the screening of magnesium oxide, so that the gauze screening net is more suitable for the screening of magnesium oxide. The vibrating screening equipment (also known as the food additive screening equipment) performs a vibrating screening operation on magnesium oxide by tightening the screening net 2 (also known as the gauze screening net). The annular screening shell 1 is the shell of the vibrating screening equipment. The annular screening shell 1 is an annular tubular shell. A cleaning unit is arranged on the annular screening shell 1. The cleaning unit includes an annular sleeve plate 3. An annular sleeve plate 3 is rotatably arranged on the annular screening shell 1 so that the annular sleeve plate 3 can rotate at the top of the annular screening shell 1. The cleaning tube body 4 arranged on the annular sleeve plate 3 can be one or multiple cleaning tube bodies 4 are evenly arranged on the annular sleeve plate 3 (such as Figure 4As shown), the number of cleaning tube bodies 4 arranged on the annular sleeve 3 is determined by the circumference of the annular screening shell 1, that is, the longer the circumference of the annular screening shell 1, the more cleaning tube bodies 4 are arranged on the annular sleeve 3; the shorter the circumference of the annular screening shell 1, the fewer cleaning tube bodies 4 are arranged on the annular sleeve 3; the purpose of such a setting is to be able to spray the cleaning solution more evenly on the screening net 2 through the setting of the cleaning tube bodies 4, so that each position of the screening net 2 can be sprayed with the cleaning solution. It should be noted that the cleaning solution is hydrochloric acid and pure water, according to the ratio of 40% hydrochloric acid and 60% pure water. The mixed liquid, the mixed solution of hydrochloric acid and pure water, reacts chemically with the magnesium oxide remaining on the screening net 2, so that the magnesium oxide on the screening net 2 can be fully cleaned. The cleaning tube body 4 is divided into a first tube body 5 and a second tube body 6. The first tube body 5 is fixedly installed on the outer wall of the annular sleeve 3, and the second tube body 6 is slidably sealed and installed in the first tube body 5 and penetrates the annular sleeve 3. The second tube body 6 penetrates the annular sleeve 3 and extends into the annular sleeve 3. The second tube body 6 is an "L-shaped circular tube", one end of the second tube body 6 faces the screening net 2, and the other end of the second tube body 6 is slidably sealed and installed in the first tube body 5, a plurality of uniform injection ports are arranged at one end of the second tube body 6 facing the screening net 2, and a plurality of spray pipes 7 are also connected to the side wall of the second tube body 6, so that the cleaning solution or clean water can be evenly sprayed from the second tube body 6 on the screening net 2. When the screening net 2 vibrates and screens the food additives, the cleaning tube body 4 is in a contracted state (that is, the second tube body 6 is located in the first tube body 5), so that the cleaning tube body 4 will not affect the screening of the food additives; when the food additives are blocked on the screening net 2, the cleaning tube body 4 is stretched (that is, the second tube body 6 slides out of the first tube body 5, so that the first The ends of the tube body 5 and the second tube body 6 are in abutment with each other), so that the cleaning tube body 4 extends into the central part of the screening mesh 2, and the cleaning liquid (that is, a mixed liquid of hydrochloric acid and pure water in a ratio of 40% hydrochloric acid and 60% pure water) is sprayed on the screening mesh 2 through the cleaning tube body 4, and the cleaning liquid reacts with the magnesium oxide on the screening mesh 2, so that the cleaning liquid completely cleans the magnesium oxide on the screening mesh 2, and then clean water is transported to the screening mesh 2 through the cleaning tube body 4, so that the screening mesh 2 can be completely cleaned, thereby improving the cleaning efficiency of the screening mesh 2, and there is no need for the staff to manually clean the screening mesh 2.

[0042] The shortcoming of the existing technology is that, since the food additive (i.e., magnesium oxide) has a certain viscosity, when the magnesium oxide is screened, magnesium oxide often remains on the screen, which causes the screen to be blocked. The screen blockage needs to be cleaned in time, and the cleaning of the screen blockage requires manual cleaning by the staff, which makes the cleaning efficiency of the screen low, thereby resulting in low screening efficiency of magnesium oxide.

[0043] The beneficial effect of this embodiment is that when the screening net 2 vibrates and screens the food additives, the cleaning tube body 4 contracts to prevent the cleaning tube body 4 from affecting the screening of the food additives. When the food additives are blocked on the screening net 2, the cleaning tube body 4 is stretched so that the cleaning tube body 4 extends into the central part of the screening net 2. The cleaning liquid (that is, a solution for dissolving food additives, preferably a mixed liquid in which hydrochloric acid and pure water are mixed in a ratio of 40% hydrochloric acid and 60% pure water, and obviously, other liquids that can effectively remove magnesium oxide and achieve cleaning operations are acceptable) is sprayed onto the screening net 2 through the cleaning tube body 4, and the cleaning liquid reacts with the magnesium oxide on the screening net 2 so that the cleaning liquid completely cleans the magnesium oxide on the screening net 2, and then clean water is transported to the screening net 2 through the cleaning tube body 4, so that the screening net 2 can be completely cleaned, thereby improving the cleaning efficiency of the screening net 2.

[0044] In another embodiment provided by the present invention, the cleaning unit further comprises a positioning plate 8, a positioning plate 8 is provided at the bottom end of the annular sleeve plate 3, a first driving member 9 such as a small micro motor is provided in the positioning plate 8, a driving wheel 10 is installed at the output end of the first driving member 9, the driving wheel 10 is pressed against the outer wall of the annular screening housing 1 to realize friction transmission (obviously, tooth meshing transmission is also possible); a plurality of driven teeth 11 are evenly arranged on the outer wall of the second tube body 6, a connecting round rod 12 is coaxially arranged on the driving wheel 10, a driving gear 13 is provided on the connecting round rod 12, and the driving gear 13 is connected to each The driven teeth 11 are meshed with each other; a slide groove 14 is provided at each end of the driven teeth 11 on the second tube body 6, and a movable tooth 15 is slidably arranged in each of the two slide grooves 14, that is, there is a movable movable tooth 15 at each end of the driven tooth 11; the two movable teeth 15 are connected to the inner walls of the corresponding slide grooves 14 by an elastic member 16, and a limiting round rod 38 is provided on the inner walls of the two slide grooves 14, and the elastic member 16 is sleeved on the outer wall of the limiting round rod 38. When the elastic member 16 is in the original length state, the end of the limiting round rod 38 abuts against the movable tooth 15.

[0045] Specifically, when it is necessary to set a plurality of cleaning tube bodies 4 on the annular sleeve plate 3, the various parts in this embodiment are also correspondingly set on the annular sleeve plate 3. When the food additives are blocked on the screening net 2, the cleaning tube body 4 needs to be stretched. The first driving member 9 is started (the first driving member 9 is a device capable of forward and reverse motion at the output end, preferably a forward and reverse motor) to drive the driving wheel 10 to rotate clockwise. Since the driving wheel 10 is pressed against the outer wall of the annular screening shell 1, the driving wheel 10 moves along the outer wall trajectory of the annular screening shell 1, so that the driving wheel 10 drives the annular sleeve plate through the positioning plate 8. 3 rotates along the top of the annular screening housing 1. While the driving wheel 10 drives the annular sleeve 3 to rotate, the driving wheel 10 drives the driving gear 13 to rotate clockwise. Since the driving gear 13 and the driven teeth 11 on the outer wall of the second tube body 6 are meshed with each other, the driving gear 13 drives the second tube body 6 to slide out of the first tube body 5, so that the second tube body 6 extends into the middle part of the annular sleeve 3 (that is, above the screening net 2), and the cleaning liquid is transported from the first tube body 5 to the second tube body 6. The cleaning solution is evenly sprayed on the screening net 2 from the second tube body 6. When the driving gear 13 drives the driven teeth 11 to move to the middle part of the annular sleeve 3 (that is, above the screening net 2), the cleaning liquid is transported from the first tube body 5 to the second tube body 6. The cleaning solution is evenly sprayed on the screening net 2 from the second tube body 6. At the end of the stroke, the active gear 13 and the movable teeth 15 are meshed with each other. Since the movable teeth 15 are slidably installed in the slide groove 14, and since the movable teeth 15 are connected to the inner wall of the slide groove 14 through the elastic member 16 (the elastic member 16 is a component that can be retracted and reset, preferably a spring), under the rotation of the active gear 13, the active gear 13 pushes the movable teeth 15 to perform linear reciprocating motion in the slide groove 14, so that the active gear 13 is idle and does not drive the second tube body 6 to continue to slide in the first tube body 5. At this time, the second tube body 6 slides to the end of its stroke in the first tube body 5, and the second tube body 6 extends out. The length is the longest, and at the same time, through the rotation of the annular sleeve 3, the first tube body 5 and the second tube body 6 can evenly spray the cleaning solution on the screening net 2, that is, initially, the driving wheel 10 drives the annular sleeve 3, the first tube body 5 and the second tube body 6 to rotate through the positioning plate 8, and the second tube body 6 gradually slides out of the first tube body 5. When the second tube body 6 slides to the end of its stroke in the first tube body 5, the second tube body 6 no longer slides in the first tube body 5, but drives the first tube body 5 and the second tube body 6 to rotate along the trajectory of the annular screening shell 1 through the driving wheel 10, so that the cleaning solution can be evenly sprayed on the screening net 2.

[0046] When the cleaning solution reacts with the residual magnesium oxide on the screening net 2, clean water is sprayed on the screening net 2 through the first tube body 5 and the second tube body 6, so that the clean water cleans the screening net 2; when the clean water cleans the screening net 2, the first driving member 9 drives the driving wheel 10 to rotate counterclockwise. Since the driving wheel 10 is pressed against the outer wall of the annular screening shell 1, the driving wheel 10 moves along the outer wall trajectory of the annular screening shell 1, so that the driving wheel 10 drives the annular sleeve plate 3 to rotate along the top of the annular screening shell 1 through the positioning plate 8. While the driving wheel 10 drives the annular sleeve plate 3 to rotate, the driving wheel 10 drives the driving gear 13 to rotate counterclockwise. Since the driven teeth 11 on the outer wall of the second tube body 6 of the driving gear 13 are meshed with each other, and the driven teeth 11 are pushed by the driving gear 13, the driving gear 13 pushes the driven teeth 11 to press against the end of the limiting rod 38. Due to the limiting effect of the limiting rod 38, the driven teeth 11 are no longer Sliding occurs, so that the driving gear 13 can mesh with the driven teeth 11, so that the driving gear 13 drives the second tube body 6 to slide into the first tube body 5, so that the second tube body 6 and the first tube body 5 are contracted. When the driving gear 13 drives the driven teeth 11 to move to the end of its stroke, the driving gear 13 and the movable teeth 15 are meshed with each other. Since the movable teeth 15 are slidably installed in the slide groove 14, and since the movable teeth 15 are connected to the inner wall of the slide groove 14 through the elastic member 16 (the elastic member 16 is an element that can be telescopically reset, preferably a spring), under the rotation and pushing action of the driving gear 13, the driving gear 13 pushes the movable teeth 15 to perform a linear reciprocating motion in the slide groove 14, so that the driving gear 13 idles and does not drive the second tube body 6 to slide into the first tube body 5. At this time, the second tube body 6 is contracted in the first tube body 5, and the second tube body 6 is received in the first tube body 5, so as to prevent the second tube body 6 from affecting the screening operation of the screening net 2 on magnesium oxide.

[0047] In another embodiment provided by the present invention, two straight plates 17 are symmetrically installed on the bottom side of the outer wall of the annular screening shell 1, a positioning shaft 18 is arranged between the two straight plates 17, a driven disc 19 is arranged on the positioning shaft 18, a bottom cover 20 is connected to the driven disc 19, the rotation of the driven disc 19 drives the bottom cover 20 to swing, and there are two states in the swing stroke of the bottom cover 20: when the screening net 2 vibrates and screens the food additives, the bottom cover 20 is in an open state; when the food additives are blocked on the screening net 2, the cleaning tube body 4 cleans the screening net 2, and the bottom cover 20 seals the bottom opening of the annular screening shell 1; a sealing ring 21 is arranged on the bottom cover 20, and the sealing ring 21 is used to seal the gap between the bottom cover 20 and the annular screening shell 1.

[0048] Specifically, since the screening mesh 2 is mainly a textile product, the gauze screening mesh 2 has a certain elasticity. When the screening mesh 2 is impacted by the cleaning solution (or clean water) for a long time, and the cleaning solution (or clean water) is adsorbed on the screening mesh 2, the weight of the screening mesh 2 increases, which leads to the loosening of the screening mesh 2. The screening mesh 2 needs to be in a taut state when screening magnesium oxide. The loosening of the screening mesh 2 will affect the screening of magnesium oxide. When the screening mesh 2 vibrates and screens the food additive (that is, magnesium oxide), the bottom cover 20 is set on the straight plate 17 through the positioning shaft 18. The bottom cover 20 opens the bottom end of the annular screening shell 1, so that the magnesium oxide can be discharged from the bottom end of the annular screening shell 1. When the food additive (that is, magnesium oxide) is in the screening mesh 2, When accumulation and blockage occur, before the cleaning tube body 4 cleans the screening net 2, the bottom cover 20 is driven to rotate around the driven disc 19 and the positioning shaft 18, so that the bottom cover 20 seals the bottom end of the annular screening shell 1. Since the bottom cover 20 is provided with a sealing ring 21, the bottom cover 20 and the sealing ring 21 seal the bottom end of the annular screening shell 1. When the cleaning tube body 4 (that is, the first tube body 5 and the second tube body 6) sprays the cleaning solution on the screening net 2, the cleaning solution is stored in the bottom cover 20 and the annular screening shell 1, so that the cleaning solution overflows the screening net 2, so that the cleaning solution stored in the bottom cover 20 and the annular screening shell 1 and the screening net 2 are fully immersed, and at this time, the existing vibration of the screening net 2 is started. In the food additive screening mode (that is, when the bottom cover 20 and the cleaning solution stored in the annular screening shell 1 can fully immerse the screening net 2), the food additive screening equipment is started, so that the screening net 2 and the annular screening shell 1 are in a vibrating state, so that the cleaning solution in the annular screening shell 1 can shake, so that the cleaning solution in the annular screening shell 1 performs a vibration cleaning operation on the screening net 2, thereby improving the cleaning quality of the cleaning solution on the screening net 2, and cleaning the screening net 2 by immersion can improve the cleaning efficiency of the screening net 2, the screening net 2 is immersed in the cleaning solution, the cleaning solution has a certain buoyancy, and will not stretch the screening net 2 to a certain extent, thereby preventing the screening net 2 from absorbing more cleaning solution and becoming loose and deformed, and because the screening net 2 The screen 2 is immersed in the cleaning solution, and there is no need to spray the cleaning solution all the time. Instead, the cleaning solution stored in the bottom cover 20 and the annular screening shell 1 can overflow the screen 2, thereby reducing the use of the cleaning solution. When the cleaning solution has completed the cleaning effect on the screen 2, the bottom cover 20 is opened to allow the cleaning solution to be discharged from the bottom end of the annular screening shell 1. When the cleaning solution is discharged from the annular screening shell 1, the bottom cover 20 is closed again, and clean water is sprayed on the screen 2 from the cleaning tube body 4 until the bottom cover 20 and the clean water stored in the annular screening shell 1 overflow the screen 2. When the clean water has completed the cleaning effect on the screen 2, the bottom cover 20 is opened to allow the clean water to be discharged from the bottom end of the annular screening shell 1, and the screen 2 is cleaned by immersion.The cleaning quality of the screen mesh 2 is improved, and the cleaning solution and clean water sprayed on the screen mesh 2 may be uneven. The screen mesh 2 is cleaned by immersion or soaking, which improves the cleaning efficiency and effect of the screen mesh 2.

[0049] Preferably, an active mechanism is provided on the straight plate 17, and the active mechanism is used to drive the bottom cover 20 to seal the annular screening housing 1. The active mechanism includes a second driving member 22, wherein a second driving member 22 is provided on one of the straight plates 17, and an auxiliary gear 23 is installed at the output end of the second driving member 22. A plurality of passive teeth 24 are evenly provided on the outer wall of the driven disc 19 along its circumferential direction (the bottom cover 20 is connected to the side wall of the driven disc 19), and each of the passive teeth 24 is meshed with the auxiliary gear 23.

[0050] Specifically, when the bottom cover 20 needs to be closed to seal the bottom end of the annular screening housing 1, the second driving member 22 is started (the second driving member 22 is a device that can perform forward and reverse motion at the output end, preferably a forward and reverse motor) to drive the auxiliary gear 23 to rotate clockwise. Since the auxiliary gear 23 is meshed with the passive teeth 24 on the outer wall of the driven disc 19, the auxiliary gear 23 drives the driven disc 19 and the positioning shaft 18 to rotate as the center through the passive teeth 24, and the driven disc 19 drives the bottom cover 20 to rotate, so that the bottom cover 20 and the sealing ring 21 seal the bottom end of the annular screening housing 1, so that the bottom cover 20, the sealing ring 21 and the annular screening housing 1 are sealed. The cleaning solution (or clean water) can be stored in the annular screening housing 1; when the bottom cover 20 needs to be opened to open the bottom end of the annular screening housing 1, the second driving member 22 is started to drive the auxiliary gear 23 to rotate counterclockwise. Since the auxiliary gear 23 is meshed with the passive teeth 24 on the outer wall of the driven disc 19, the auxiliary gear 23 drives the driven disc 19 and the positioning shaft 18 to rotate as the center through the passive teeth 24, and the driven disc 19 drives the bottom cover 20 to rotate, so that the bottom cover 20 and the sealing ring 21 release the sealing operation on the bottom end of the annular screening housing 1, so that the cleaning solution (or clean water) or magnesium oxide can be discharged from the annular screening housing 1.

[0051] Preferably, a limiting mechanism is provided on the bottom cover 20 on the other side of the driven disc 19, and the limiting mechanism is used to position the bottom cover 20 on the annular screening housing 1. The limiting mechanism may be provided with a lock tongue on the bottom cover 20 and a lock body on the annular screening housing 1, that is, the bottom cover 20 and the annular screening housing 1 are respectively provided with two end surfaces of the electromagnetic lock adsorbed to each other (that is, the lock tongue and the lock body), so that the limiting mechanism can position the bottom cover 20 on the annular screening housing 1. Specifically, when the bottom cover 20 is closed, the bottom end of the annular screening housing 1 is sealed. During operation, the lock tongue provided on the bottom cover 20 and the lock body provided on the annular screening shell 1 are adsorbed against each other, so that the bottom cover 20 and the annular screening shell 1 are positioned against each other, making the closing of the bottom cover 20 more stable. The mutual adsorption and separation and automatic control of the lock tongue and the lock body on the electromagnetic lock are common knowledge in the field and are not elaborated. When the bottom cover 20 needs to be opened, the lock tongue provided on the bottom cover 20 and the lock body provided on the annular screening shell 1 are separated from each other, so that the bottom cover 20 and the annular screening shell 1 are separated from each other, so that the bottom cover 20 can open the bottom end of the annular screening shell 1.

[0052] It should be noted that the limiting mechanism can also be a mutually plugged positioning structure (such as a mechanical lock, a door lock, etc.), that is, the limiting mechanism can position the end of the bottom cover 20 away from the driven disc 19 on the annular screening housing 1. This is common knowledge in the field and will not be repeated.

[0053] In another embodiment provided by the present invention, a through hole 25 is provided at the center position of the bottom cover 20, and a closing mechanism is provided on the bottom cover 20, and the closing mechanism includes a transmission gear 26, and a transmission gear 26 is rotatably provided at the bottom end of the bottom cover 20, and a straight rod 27 is provided on the side of the transmission gear 26 close to the bottom cover 20, and a through hole 28 is provided at the end of the straight rod 27, and a lifting rod 29 is slidably provided in the through hole 28, and a lifting inclined surface is provided at the bottom end of the lifting rod 29, and a closed circular plate 30 for sealing the through hole 25 is provided at the top of the lifting rod 29, and a driven gear 31 is also rotatably provided on the bottom end of the bottom cover 20, and the driven gear 31 is far A square rod 32 is provided on the side away from the bottom cover 20, and an arc panel 33 is connected to the end of the square rod 32. The arc panel 33 is provided with a gradually inclined active slope along the arc direction thereof, and the active slope and the lifting slope at the bottom end of the lifting rod 29 are wedge-matched with each other. The transmission gear 26 and the driven gear 31 are symmetrical with respect to the axis of the cleaning tube body 4, and the transmission gear 26 and the driven gear 31 have the same specifications and are meshed with each other. A third driving member 34 is also provided on the bottom cover 20, and a power gear 35 is connected to the output end of the third driving member 34, and the power gear 35 and the transmission gear 26 are meshed with each other.

[0054] Specifically, the bottom cover 20 is provided with an inclined annular groove with the perforation 25 as the center, and the cleaning solution (or clean water) on the bottom cover 20 can flow into the perforation 25 from the inclined annular groove, so that the cleaning solution (or clean water) on the bottom cover 20 can be discharged from the perforation 25 to the annular screening housing 1. Since the cleaning solution (or clean water) stored between the annular screening housing 1 and the bottom cover 20 needs to be repeatedly opened or closed to be discharged from the inside, and since the bottom cover 20 is relatively large, it is more troublesome to open and close it. The bottom cover 20 is provided with a perforation 25 at the center position. When the bottom cover 20 needs to seal the bottom end of the annular screening housing 1, the circular plate 30 needs to be closed to block the perforation 25, so that the cleaning solution (or clean water) stored in the annular screening housing 1 will not flow out from the perforation 25. The liquid is discharged from the hole 25. When the through hole 25 needs to be closed, the third driving member 34 is started (the third driving member 34 is a device whose output end can perform forward and reverse motion, preferably a forward and reverse motor) to drive the power gear 35 to rotate clockwise. Since the power gear 35 and the transmission gear 26 are meshed with each other, the power gear 35 can drive the transmission gear 26 to rotate, and the transmission gear 26 drives the straight rod 27 to rotate toward the side close to the through hole 25. The straight rod 27 drives the lifting rod 29 and the closing circular plate 30 to rotate toward the side close to the through hole 25. At the same time, since the transmission gear 26 and the driven gear 31 are meshed with each other, and the transmission gear 26 and the driven gear 31 are symmetrical about the axis of the cleaning tube body 4, the specifications of the transmission gear 26 and the driven gear 31 are the same. The transmission gear 26 drives the driven gear 31 to rotate, and the driven gear 31 drives the square rod 32 and the arc panel 33 to rotate toward the side close to the through hole 25, that is, the transmission gear 26 and the driven gear 31 respectively drive the lifting rod 29 and the end of the arc panel 33 close to each other to rotate. When the top end of the arc panel 33 and the bottom end of the lifting rod 29 abut against each other, since the arc panel 33 is provided with a gradually inclined active inclined surface along its arc surface direction, the bottom end of the lifting rod 29 is provided with a lifting inclined surface, and the active inclined surface on the arc panel 33 and the lifting inclined surface at the bottom end of the lifting rod 29 are wedge-shapedly matched with each other, the arc panel 33 gradually pushes the lifting rod 29 to move toward the end close to the bottom cover 20, until the lifting rod 29 drives the center of the closed circular plate 30 to coincide with the center of the through hole 25. The closed circular plate 30 is extended into the perforation 25, so that the closed circular plate 30 performs a sealing operation on the perforation 25, and the arc panel 33 pushes the lifting rod 29 and the closed circular plate 30 to seal the perforation 25, so as to achieve the sealing of the perforation 25 on the bottom cover 20. In the prior art, it is only necessary to seal the perforation 25 by the closed circular plate 30 and the perforation 25 against each other, and there is no need for the closed circular plate 30 to extend into the perforation 25 after moving to the position of the perforation 25. When the cleaning solution stored in the bottom cover 20 and the annular screening shell 1 and the screening net 2 are fully immersed, it is necessary to start the vibration mode of the screening net 2 (that is, when the cleaning solution stored in the bottom cover 20 and the annular screening shell 1 can fully immerse the screening net 2), start the food additive screening equipment,The screening net 2 and the annular screening housing 1 are in a vibrating state, so that the cleaning solution in the annular screening housing 1 can shake, so that the cleaning solution in the annular screening housing 1 performs a vibration cleaning operation on the screening net 2. When the cleaning solution in the annular screening housing 1 shakes, it may cause a certain vibration to the closed circular plate 30, so that the closed circular plate 30 loosens the seal on the perforation 25. In this embodiment, the closed circular plate 30 extends into the perforation 25, so that the perforation 25 limits the closed circular plate 30 to a certain extent, so that the closed circular plate 30 performs a certain sliding seal in the perforation 25, and the stability of the bottom cover 20 sealing the bottom end of the annular screening housing 1 is achieved.

[0055] When the bottom cover 20 needs to open the annular screening housing 1, the cleaning solution (or clean water) in the annular screening housing 1 is discharged. At this time, the closed circular plate 30 is required to stop blocking the through hole 25. When the through hole 25 needs to be opened, the third driving member 34 is started to drive the power gear 35 to rotate counterclockwise. Since the power gear 35 and the transmission gear 26 are meshed with each other, the power gear 35 can drive the straight rod 27 to rotate away from the through hole 25 through the transmission gear 26. The straight rod 27 drives the lifting rod 29 and the closed circular plate 30 to rotate away from the through hole 25. At the same time, since the transmission gear 26 and the driven gear 31 are meshed with each other, The transmission gear 26 drives the square rod 32 and the arc panel 33 to rotate toward the side away from the through hole 25 through the driven gear 31, that is, the transmission gear 26 and the driven gear 31 respectively drive the lifting rod 29 and the end of the arc panel 33 away from each other to rotate, and the lifting rod 29 and the closing circular plate 30 slide in the through hole 28 on the straight rod 27 toward the end away from the bottom cover 20 until the top end of the arc panel 33 and the bottom end of the lifting rod 29 are separated from each other, and the closing circular plate 30 opens the through hole 25 on the bottom cover 20, so that the cleaning solution (or clean water) in the annular screening shell 1 can be discharged from the through hole 25. Repeating the above operation can repeatedly realize the opening and closing of the bottom cover 20.

[0056] In another embodiment provided by the present invention, a spherical rod 36 is provided at the top of the lifting rod 29, and a spherical groove 37 is provided on the closed circular plate 30. The spherical rod 36 on the lifting rod 29 is rotatably set in the spherical groove 37, so that the closed circular plate 30 has a smaller angle change on the lifting rod 29.

[0057] Specifically, when the through hole 25 needs to be closed, the third driving member 34 drives the transmission gear 26 to rotate through the power gear 35, the transmission gear 26 drives the straight rod 27 to rotate toward the side close to the through hole 25, and the straight rod 27 drives the lifting rod 29 and the closing circular plate 30 to rotate toward the side close to the through hole 25. At the same time, since the transmission gear 26 and the driven gear 31 are meshed with each other, the transmission gear 26 drives the driven gear 31 to rotate, and the driven gear 31 drives the square rod 32 and the arc panel 33 to rotate toward the side close to the through hole 25, that is, the transmission gear 26 and the driven gear 31 respectively drive the ends of the lifting rod 29 and the arc panel 33 that are close to each other to rotate, when the top end of the arc panel 33 and the bottom end of the lifting rod 29 abut against each other. When connected, since the arc panel 33 is provided with a gradually inclined active inclined surface along its arc surface direction, the bottom end of the lifting rod 29 is provided with a lifting inclined surface, and the active inclined surface on the arc panel 33 and the lifting inclined surface at the bottom end of the lifting rod 29 are wedge-shapedly matched with each other, the arc panel 33 gradually pushes the lifting rod 29 to move toward one end close to the bottom cover 20, and the lifting rod 29 pushes the closed circular plate 30 to slide toward one end inside the through hole 25 through the spherical rod 36. Since the lifting rod 29 and the closed circular plate 30 are movably connected to each other through the spherical groove 37 and the spherical rod 36, the closed circular plate 30 has a certain angle change, so that the closed circular plate 30 can adapt to the smaller angle change of the lifting rod 29 and the arc panel 33 when being lifted. The closed circular plate 30 can perform a stable sealing operation on the perforation 25; when the perforation 25 needs to be opened, the third driving member 34 is started to drive the power gear 35 to rotate counterclockwise. Since the power gear 35 and the transmission gear 26 are meshed with each other, the power gear 35 can drive the straight rod 27 to rotate away from the perforation 25 through the transmission gear 26, and the straight rod 27 drives the lifting rod 29 and the closed circular plate 30 to rotate away from the perforation 25. At the same time, since the transmission gear 26 and the driven gear 31 are meshed with each other, the transmission gear 26 drives the square rod 32 and the arc plate 33 to rotate away from the perforation 25 through the driven gear 31, that is, the transmission gear 26 and the driven gear 31 are meshed with each other. The lifting rod 29 and the arc panel 33 are respectively driven to rotate at one end away from each other, and the lifting rod 29 and the closed circular plate 30 slide in the through hole 28 on the straight rod 27 toward the end away from the bottom cover 20, and the closed circular plate 30 is separated from the perforation 25. Cleaning solution (or clean water) is discharged from the perforation 25, and the cleaning solution (or clean water) performs a certain flushing operation on the closed circular plate 30, and the closed circular plate 30 has a certain angle change on the lifting rod 29. Under the flushing action of the cleaning solution (or clean water), the closed circular plate 30 is tilted on the lifting rod 29 to a certain extent, so that the cleaning solution (or clean water) can clean the closed circular plate 30, which is convenient for the subsequent use of the closed circular plate 30.

[0058] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A cleaning mechanism for food additive screening equipment, comprising an annular screening housing, wherein a screening net for screening food additives is arranged in the annular screening housing, characterized in that: The annular screening shell is provided with a cleaning unit, the cleaning unit comprises an annular sleeve plate, the top of the annular screening shell is rotatably provided with an annular sleeve plate, the annular sleeve plate is provided with a retractable cleaning tube body, the cleaning tube body has two states: when the screening net vibrates and screens the food additives, the cleaning tube body is in a retracted state; when the food additives are cleaned on the screening net, the cleaning tube body is in a stretched state to spray a solution for dissolving the food additives onto the screening net, so that the cleaning tube body can clean the screening net; The cleaning tube body is divided into a first tube body and a second tube body, the first tube body is fixedly mounted on the outer wall of the annular sleeve, and the second tube body is slidably sealed and mounted in the first tube body and passes through the annular sleeve; The cleaning unit further comprises a positioning plate, the bottom end of the annular sleeve plate is provided with a positioning plate, a first driving member is provided inside the positioning plate, a driving wheel is installed at the output end of the first driving member, and the driving wheel is pressed against the outer wall of the annular screening shell; A plurality of driven teeth are evenly arranged on the outer wall of the second tube body, a connecting round rod is arranged on the driving wheel, a driving gear is arranged on the connecting round rod, and the driving gear and each of the driven teeth are meshed with each other; The second tube body is provided with a slide groove at both ends of the driven tooth, and a movable tooth is slidably arranged in each of the two slide grooves; The two movable teeth are connected to the inner wall of the corresponding slide groove via an elastic member; Two straight plates are symmetrically installed on the bottom side of the outer wall of the annular screening shell, a positioning shaft is arranged between the two straight plates, a driven disc is arranged on the positioning shaft, a bottom cover is connected to the driven disc, and the bottom cover has two states: when the screening net vibrates and screens the food additives, the bottom cover is in an open state; when the food additives are blocked on the screening net, the cleaning tube body cleans the screening net, and the bottom cover seals the annular screening shell; A perforation is provided at the center position of the bottom cover, and a closing mechanism is provided on the bottom cover, and the closing mechanism includes a transmission gear, a transmission gear is rotatably provided at the bottom end of the bottom cover, a straight rod is provided on the side of the transmission gear close to the bottom cover, and a through hole is provided at the end of the straight rod, a lifting rod is slidably provided in the through hole, a lifting inclined surface is provided at the bottom end of the lifting rod, and a closed circular plate for sealing the perforation is provided at the top of the lifting rod, and a driven gear is also rotatably provided on the bottom end of the bottom cover, and a square rod is provided on the side of the driven gear away from the bottom cover, and an arc panel is connected to the end of the square rod, and the arc panel is provided with a gradually inclined active inclined surface along the arc surface direction, and the active inclined surface and the lifting inclined surface at the bottom end of the lifting rod are wedge-shapedly matched with each other, and the transmission gear and the driven gear are symmetrical about the axis of the cleaning tube body, and the specifications of the transmission gear and the driven gear are the same and meshing with each other, and a third driving member is also provided on the bottom cover, and the output end of the third driving member is connected to a power gear, and the power gear and the transmission gear are meshing with each other.

2. A cleaning mechanism for food additive screening equipment according to claim 1, characterized in that: The bottom cover is provided with a sealing ring, and the sealing ring is used to seal the gap between the bottom cover and the annular screening shell.

3. A cleaning mechanism for food additive screening equipment according to claim 1, characterized in that: The straight plate is provided with an active mechanism for driving the bottom cover to seal the annular screening housing, and the driven disc is provided with a plurality of passive teeth evenly along its circumferential direction.

4. A cleaning mechanism for food additive screening equipment according to claim 1, characterized in that: A limiting mechanism is arranged on the bottom cover at the other side of the driven disc, and the limiting mechanism is used to position the bottom cover on the annular screening shell.

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