Automatic weighing and conveying mechanism for food processing raw materials

Abstract

The invention relates to the technical field of weighing structures, in particular to a food processing raw material automatic weighing and conveying mechanism which comprises a supporting cylinder, a feeding pipe, a filling pipe and an arc-shaped tooth row, the axis of the supporting cylinder and the axis of the feeding pipe are both vertical and coaxial, the filling pipe is rotationally installed at the position of an opening in the lower side of the feeding pipe, and the arc-shaped tooth row is arranged on the supporting cylinder. The filling pipe is communicated with the feeding pipe, the axis of an opening in the lower side of the filling pipe deviates from the axis of the feeding pipe, and the arc-shaped tooth row is fixed to the outer wall of the filling pipe; the raw materials in the material containing box are gradually increased, so that the material containing box moves downwards, the spring is pulled through the supporting plate to generate elastic deformation, the weight of the raw materials in each material containing box can be accurately controlled through the design, the consistency of the feeding amount every time is guaranteed, and the weighing precision is improved.

Description

Technical Field

[0001] The invention relates to the technical field of weighing structures, in particular to an automatic weighing and feeding mechanism for food processing raw materials. Background Art

[0002] In the modern food processing industry, the application of automation technology has become a key factor in improving production efficiency, ensuring product quality and reducing production costs. With the continuous improvement of consumers' requirements for food safety and quality, as well as the continuous increase in labor costs, traditional manual or semi-automatic production lines have been unable to meet market demand.

[0003] At present, many food production companies still use manual or semi-automatic weighing methods to control the input of raw materials. This method is not only inefficient, but also prone to human errors, resulting in unstable product quality. In addition, frequent manual operations will increase the risk of cross-contamination and affect food safety. Therefore, realizing automated and accurate weighing of raw materials is not only a reflection of technological progress, but also an inevitable trend in the development of the industry. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides an automatic weighing and feeding mechanism for food processing raw materials, and the specific technical solution adopted is: According to a first aspect of the present invention, there is provided an automatic weighing and feeding mechanism for food processing raw materials, comprising a support tube, a feed tube, a filling tube and an arc-shaped tooth row, wherein the axis of the support tube and the axis of the feed tube are both vertical and coaxial with each other, the filling tube is rotatably mounted at the lower opening position of the feed tube, and the filling tube and the feed tube are connected to each other, the axis of the lower opening position of the filling tube deviates from the axis of the feed tube, and the arc-shaped tooth row is fixed on the outer wall of the filling tube; A plurality of material containing boxes are distributed in an annular shape on the inner wall of the support tube, and the material containing boxes can slide vertically on the support tube. A support plate is arranged at the bottom of the material containing box, and a transmission unit and a spring are arranged on the support plate. The spring is used to provide an upward elastic pulling force for the support plate, and a gear used in conjunction with an arc-shaped tooth row is arranged on the transmission unit. A connecting frame is arranged at the bottom of the filling tube, and an arc-shaped baffle is arranged on the connecting frame; The bottom of the material holding box is inclined, and a discharge port is provided on the side wall of the material holding box. When the arc-shaped baffle moves to the position of the discharge port of the material holding box, the arc-shaped baffle blocks the discharge port.

[0005] Furthermore, the transmission unit includes a fixed seat fixed on the outer wall of the support tube and a threaded rod fixed on the support plate, a threaded sleeve is rotatably arranged on the fixed seat, a gear is arranged on the top of the threaded sleeve, and the top of the threaded rod is inserted into the threaded sleeve and threadedly connected to each other.

[0006] Furthermore, an outer sliding sleeve of the support tube is provided with an outer ring, the outer ring slides in the vertical direction, the top of the spring is fixed on the outer ring, a plurality of connecting plates are fixed on the outer wall of the support tube, and the connecting plates and the outer ring are fastened and connected by bolts and nuts; Among them, in the natural state, the support plate contacts the bottom of the support tube, and when the outer ring moves in the vertical direction, the storage amount of raw materials in the material box changes.

[0007] Furthermore, a ratchet is fixed on the top of the threaded sleeve, and the gear is mounted on the ratchet.

[0008] Furthermore, a support plate is rolled on the side wall of the filling tube, a top column is horizontally slidably arranged on the support plate, one end of the top column presses on the outer wall of the feeding tube, and the other end of the top column is connected to the support plate via a first elastic sheet.

[0009] Furthermore, a material guide plate is obliquely arranged on the top of each material containing box.

[0010] Furthermore, a fixed guide rail, a movable guide rail and a slider are arranged on the guide plate on the material holding box, the movable guide rail slides within a specified interval on the fixed guide rail, the slider slides within a specified interval on the movable guide rail, a push-pull plate is rotatably arranged on the slider, the bottom of the push-pull plate is rotatably mounted on the inner wall of the adjacent material holding box, and the push-pull plate is connected to the adjacent material holding box through a second elastic sheet; Wherein, the material guide plate rotates on the material containing box.

[0011] Furthermore, a bottom plate is provided at the bottom of the support cylinder, a discharge pipe is vertically inserted on the bottom plate, an inclined pipe is connected to the top of the discharge pipe, a receiving hopper is connected to the side wall of the arc-shaped baffle, and the receiving hopper and the inclined pipe are connected to each other.

[0012] The beneficial effects of the present invention are: By utilizing the gradual increase of raw materials inside the material box, the material box is moved down and the spring is pulled by the support plate to cause elastic deformation. This design allows the weight of the raw materials in each material box to be accurately controlled, thereby ensuring the consistency of the amount of material added each time and improving the accuracy of weighing. The entire weighing process does not require manual intervention, and the filling tube is driven to rotate by the weight of the raw materials themselves, realizing automatic operation. In addition, the structure does not require energy supply and can operate using the weight of the raw materials themselves, which not only improves production efficiency, but also reduces labor costs and energy losses. Since the position of the arc baffle is controlled by the filling tube, it can realize automatic blocking of the discharge port of the material box and open control mode, avoiding the risk of cross contamination caused by frequent manual operations. The invention can realize the function of automatic weighing and feeding of raw materials in a safe way, and ensure the food safety. At the same time, the closed design of the whole mechanism is also helpful to keep it clean, which meets the hygiene standards of the food industry. The mechanism mainly relies on mechanical transmission and elastic deformation to realize its function, and its structure is relatively simple, which is easy to maintain and clean. The circular motion of the filling tube on the feeding tube realizes the functions of continuous quantitative weighing and discharging and conveying. After each material box completes one weighing, the filling tube will automatically move to the next material box, which ensures the continuity and stability of production. In summary, the automatic weighing and feeding mechanism for food processing raw materials provided by the invention not only solves many problems in the traditional weighing and feeding process, but also greatly improves the production efficiency and product quality through innovative design and efficient automatic operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art 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 be obtained based on these drawings without paying creative work.

[0014] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 yes Figure 1 Schematic diagram of the middle support tube and the structure above it; Figure 3 yes Figure 1 Schematic diagram of the middle feed pipe and the structure thereon; Figure 4 yes Figure 2 Schematic diagram of the middle material box and its upper structure; Figure 5 yes Figure 4 Schematic diagram of the structure of the middle guide plate.

[0015] Reference numerals: 1. Support cylinder; 2. Feeding pipe; 3. Filling pipe; 4. Arc-shaped gear row; 5. Material box; 6. Support plate; 7. Spring; 8. Gear; 9. Connecting frame; 10. Arc-shaped baffle plate; 11. Fixed seat; 12. Threaded sleeve; 13. Threaded rod; 14. Outer ring; 15. Connecting plate; 16. Ratchet; 17. Support plate; 18. Top column; 19. First spring piece; 20. Guide plate; 21. Fixed guide rail; 22. Movable guide rail; 23. Sliding block; 24. Push-pull plate; 25. Second spring piece; 26. Bottom plate; 27. Discharge pipe; 28. Inclined pipe; 29. ​​Receiving hopper. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0017] In the description of the present invention, it should be noted that the orientations or positional relationships indicated by “center”, “up”, “down”, “left”, “right”, “vertical”, “horizontal”, “inside” and “outside”, etc., are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0018] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. This embodiment is written in a progressive manner.

[0019] like Figures 1 to 5 As shown, an automatic weighing and feeding mechanism for food processing raw materials of the present invention comprises a support tube 1, a feeding tube 2, a filling tube 3 and an arc-shaped tooth row 4, the axis of the support tube 1 and the axis of the feeding tube 2 are both vertical and coaxial with each other, the filling tube 3 is rotatably installed at the lower opening position of the feeding tube 2, and the filling tube 3 and the feeding tube 2 are connected with each other, the axis of the lower opening position of the filling tube 3 and the axis of the feeding tube 2 deviate from each other, and the arc-shaped tooth row 4 is fixed on the outer wall of the filling tube 3; A plurality of material boxes 5 are distributed in an annular shape on the inner wall of the support tube 1. The material boxes 5 can slide vertically on the support tube 1. A support plate 6 is provided at the bottom of the material box 5. A transmission unit and a spring 7 are provided on the support plate 6. The spring 7 is used to provide an upward elastic pulling force for the support plate 6. A gear 8 used in conjunction with the arc-shaped gear row 4 is provided on the transmission unit. A connecting frame 9 is provided at the bottom of the filling tube 3. An arc-shaped baffle 10 is provided on the connecting frame 9. The bottom of the material holding box 5 is inclined, and a discharge port is provided on the side wall of the material holding box 5. When the arc-shaped baffle 10 moves to the position of the discharge port of the material holding box 5, the arc-shaped baffle 10 blocks the discharge port.

[0020] In detail, the support cylinder 1 is mainly used to support the structure above it, the position of the feeding tube 2 is fixed and used for continuous feeding, the filling tube 3 is inclined, the top of the filling tube 3 is rotatably connected with the bottom of the feeding tube 2 and communicated with each other, the bottom of the filling tube 3 deviates from the axis of the feeding tube 2 and is located above the material holding box 5, the raw materials in the feeding tube 2 can be transported to the material holding box 5 through the filling tube 3, the support plate 6 is used to support the transmission unit and the spring 7, when the raw materials are placed in the material holding box 5, as the raw materials gradually increase, the material holding box 5 moves down and pulls the spring 7 through the support plate 6 to elastically deform, and the gear 8 is used to communicate with the arc gear row 4 When used in conjunction, when the lower opening of the filling tube 3 moves to the top of a material holding box 5, the arc-shaped tooth row 4 meshes with the gear 8 on the material holding box 5, and at this time, the arc-shaped baffle 10 synchronously moves to the discharge port position of the material holding box 5, and the arc-shaped baffle 10 blocks the discharge port, and the material holding box 5 can store raw materials normally. With the continuous filling of raw materials, the weight of the material holding box 5 increases and gradually moves downward. At this time, the material holding box 5 will drive the gear 8 to rotate through the support plate 6 and the transmission unit, and the gear 8 drives the filling tube 3 to rotate on the feed tube 2 through the arc-shaped tooth row 4, and the lower opening of the filling tube 3 gradually moves toward the next material holding box. 5, when the weight of the raw materials in the material storage box 5 reaches the specified value, the lower opening of the filling tube 3 moves to the top of the next material storage box 5 and no more raw materials are poured into the material storage box 5, thereby realizing the movement of the filling tube 3 between two adjacent material storage boxes 5. At this time, the gear 8 on the next material storage box 5 meshes with the arc-shaped gear row 4 and continues to push the filling tube 3 to rotate, so that the filling tube 3 can perform a circular motion on the feed pipe 2 and continue to introduce raw materials into different material storage boxes 5. Since the rotation of the filling tube 3 drives the connecting frame 9 and the arc-shaped baffle 10 to rotate, when the arc-shaped baffle 10 is in contact with the material storage box with the specified weight of raw materials, the filling tube 3 is rotated. When the material holding box 5 is separated, the arc baffle 10 stops blocking the discharge hole on the material holding box 5, and the raw materials in the material holding box 5 can be discharged naturally. The tension of the spring 7 is used to gradually reset the material holding box 5, thereby realizing the continuous quantitative weighing and discharge and conveying work. In addition, this structure does not require power control, and can achieve the purpose of weighing and rotating the filling tube 3 and feeding the material to different material holding boxes 5 only by relying on the weight of the raw materials themselves. At the same time, the discharge work of the material holding box 5 can also utilize the rotation of the filling tube 3 to make the arc baffle 10 block and open the discharge openings on different material holding boxes 5.

[0021] By utilizing the gradual increase of the raw materials inside the material holding box 5, the material holding box 5 is moved down and the spring 7 is pulled by the support plate 6 to elastically deform. This design allows the weight of the raw materials in each material holding box 5 to be accurately controlled, thereby ensuring the consistency of the amount of material added each time and improving the weighing accuracy; the entire weighing process does not require manual intervention, and the filling tube 3 is driven to rotate by the weight of the raw materials themselves, thereby realizing automatic operation, and the structure does not require energy supply, and can be operated by the weight of the raw materials themselves, which not only improves production efficiency, but also reduces labor costs and energy losses; because the position of the arc baffle 10 is controlled by the filling tube 3, it is possible to realize the automatic blocking of the discharge port of the material holding box 5 and the open control mode, thereby avoiding cross contamination caused by frequent manual operations. The risk of contamination is reduced, ensuring food safety. At the same time, the closed design of the entire mechanism is also helpful to keep it clean and meet the hygiene standards of the food industry. The mechanism mainly relies on mechanical transmission and elastic deformation to realize its functions, and the structure is relatively simple, easy to maintain and clean on a daily basis. The circular motion of the filling tube 3 on the feeding tube 2 realizes the functions of continuous quantitative weighing and discharging and conveying. After each material box 5 completes a weighing, the filling tube 3 will automatically move to the next material box 5, ensuring the continuity and stability of production. In summary, the automatic weighing and conveying mechanism for food processing raw materials provided by the present invention, through innovative design and efficient automated operation, not only solves many problems in the traditional weighing and conveying process, but also greatly improves production efficiency and product quality.

[0022] Furthermore, the transmission unit includes a fixed seat 11 fixed on the outer wall of the support tube 1 and a threaded rod 13 fixed on the support plate 6, a threaded sleeve 12 is inserted and rotatably arranged on the fixed seat 11, the gear 8 is arranged at the top of the threaded sleeve 12, and the top of the threaded rod 13 is inserted into the threaded sleeve 12 and is threadedly connected to each other.

[0023] In detail, by utilizing the threaded connection relationship between the threaded sleeve 12 and the threaded rod 13, when the material holding box 5 moves in the vertical direction, the threaded rod 13 will move in the vertical direction relative to the threaded sleeve 12. At this time, the threaded sleeve 12 will rotate, and the threaded sleeve 12 will drive the gear 8 to rotate, thereby providing power for the circular motion of the arc-shaped gear row 4 and the filling tube 3.

[0024] Furthermore, an outer sliding sleeve of the support tube 1 is provided with an outer ring 14, the outer ring 14 slides in the vertical direction, the top of the spring 7 is fixed on the outer ring 14, and a plurality of connecting plates 15 are fixed on the outer wall of the support tube 1, and the connecting plates 15 are fastened to the outer ring 14 by bolts and nuts; In the natural state, the support plate 6 is in contact with the bottom of the support tube 1 , and when the outer ring 14 moves in the vertical direction, the storage amount of the raw material in the material box 5 changes.

[0025] In detail, the bolt is screwed on the connecting plate 15, and the bottom of the bolt is rotatably installed on the outer ring 14, and the nut can tighten the bolt on the connecting plate 15. When the weighing weight needs to be adjusted, it is only necessary to adjust the height position of the outer ring 14 on the connecting plate 15 by the bolt and the nut. Since the support plate 6 is in contact with the bottom of the support tube 1 at the beginning, when the filling tube 3 moves from one material holding box 5 to another material holding box 5, the rotation range of the filling tube 3 remains unchanged, that is, the descending activity range of the material holding box 5 remains unchanged. At this time, the elastic strength of the spring 7 of the material holding box 5 changes when it reaches the specified position, thereby facilitating the adjustment of the amount of raw materials stored in the material holding box 5.

[0026] Furthermore, a ratchet 16 is fixed to the top of the threaded sleeve 12 , and the gear 8 is mounted on the ratchet 16 .

[0027] In detail, in order to enable the filling tube 3 to move smoothly from one material holding box 5 to another material holding box 5, there needs to be a chance for the two gears 8 on the two adjacent material holding boxes 5 to mesh with the arcuate tooth row 4 at the same time, so as to ensure that the filling tube 3 continues to rotate, and to avoid the situation where the arcuate tooth row 4 is separated from one material holding box 5 and the filling tube 3 is in an unloaded state when the arcuate tooth row 4 has not yet meshed with the gear 8 on the adjacent material holding box 5. Due to the existence of this opportunity, the material holding box 5 that has not yet been filled with raw materials will exert a force on the material holding box 5 that has completed weighing when it moves downward, causing the material holding box 5 to continue to move downward until the gear 8 on the material holding box 5 is separated from the arcuate tooth row 4, which causes the two adjacent material holding boxes 5 to interfere with each other.

[0028] The setting of the ratchet 16 can ensure that when the material box 5 moves downward, it can drive the filling tube 3 to move smoothly, and the next material box 5 cannot interfere with the material box 5 that has completed the weighing work.

[0029] Furthermore, a support plate 17 is rolled on the side wall of the filling tube 3, and a top column 18 is horizontally slidably arranged on the support plate 17. One end of the top column 18 presses on the outer wall of the feeding tube 2, and the other end of the top column 18 is connected to the support plate 17 through a first elastic sheet 19.

[0030] In detail, when the filling tube 3 rotates, the top column 18 will move by friction on the outer wall of the feeding tube 2. At this time, the friction can be used to achieve a deceleration and anti-skid effect on the filling tube 3, thereby preventing the filling tube 3 from rotating randomly due to inertia, making it convenient to use it with the ratchet 16.

[0031] Furthermore, a material guide plate 20 is obliquely provided on the top of each material containing box 5 .

[0032] In detail, when the lower opening of the filling tube 3 moves from one material holding box 5 to another material holding box 5 , the material guide plate 20 can block the gap between two adjacent material holding boxes 5 , thereby preventing the raw materials from being randomly spilled between the two adjacent material holding boxes 5 .

[0033] Further, the guide plate 20 on the material holding box 5 is provided with a fixed guide rail 21, a movable guide rail 22 and a slider 23, the movable guide rail 22 slides within a specified interval on the fixed guide rail 21, the slider 23 slides within a specified interval on the movable guide rail 22, a push-pull plate 24 is rotatably provided on the slider 23, the bottom of the push-pull plate 24 is rotatably mounted on the inner wall of the adjacent material holding box 5, and the push-pull plate 24 is connected to the adjacent material holding box 5 through a second elastic sheet 25; The material guide plate 20 rotates on the material containing box 5 .

[0034] In detail, in the natural state, the guide plate 20 is inclined. As the raw materials in the material box 5 gradually increase, the material box 5 moves downward in the vertical direction. At this time, the material box 5 will pull the slider 23 on the guide plate 20 on the adjacent material box 5 to slide on the movable guide rail 22 through the push-pull plate 24, and the movable guide rail 22 slides on the fixed guide rail 21. When the movable guide rail 22 moves to the bottom of the fixed guide rail 21 and the slider 23 moves to the bottom of the movable guide rail 22, the relative position of the slider 23 and the guide plate 20 is fixed. At this time, the push-pull plate 24 will pull the guide plate 20 to tilt downward, that is, the inclination angle of the guide plate 20 gradually decreases, and it gradually extends to the top of the material box 5 filled with raw materials, and the guide plate 20 actively approaches the bottom of the filling tube 3 in the filling state. At this time, the raw materials discharged from the filling tube 3 will be introduced into the adjacent material box 5 through the guide plate 20. Through this active structure, the smooth transition of the raw materials discharged by the filling tube 3 between the two material boxes 5 can be achieved.

[0035] It should be pointed out that there is a side wall on the push-pull plate 24. In the natural state, the side wall of the push-pull plate 24 fits against the inner wall of the material holding box 5, thereby limiting the position of the push-pull plate 24. At this time, the position of the guide plate 20 is fixed. When the first material holding box 5 completes discharging and the second material holding box 5 is in the filling state, the push-pull plate 24 moves up relative to the guide plate 20. At this time, the position of the push-pull plate 24 on the first material holding box 5 is relatively fixed, and the fixed guide rail 21, the movable guide rail 22 and the slider 23 slide relative to each other in turn, and the guide plate 20 gradually rotates from an inclined state to a vertical state. The fixed guide rail 21, the movable guide rail 22 and the slider 23 are mainly provided to increase the allowable relative movement range of the two adjacent material holding boxes 5.

[0036] Furthermore, a bottom plate 26 is provided at the bottom of the support cylinder 1, a discharge pipe 27 is vertically inserted on the bottom plate 26, an inclined pipe 28 is connected to the top of the discharge pipe 27, and a receiving hopper 29 is connected to the side wall of the arc-shaped baffle 10, and the receiving hopper 29 and the inclined pipe 28 are connected to each other.

[0037] In detail, when the arc-shaped baffle 10 rotates, it can drive the receiving hopper 29 and the inclined tube 28 to rotate, and the bottom plate 26 fixes the discharge pipe 27. When the receiving hopper 29 moves to the discharge port position on the material holding box 5 that has completed the weighing work, the raw materials in the material holding box 5 can be naturally discharged through the receiving hopper 29, the inclined tube 28 and the discharge pipe 27, and multiple material holding boxes 5 can be discharged through the discharge pipe 27, thereby realizing the continuous feeding of the feeding pipe 2 and the intermittent quantitative discharge of the discharge pipe 27.

[0038] It should be noted that, with the discharge of the raw materials and the action of the spring 7, the material holding box 5 will gradually move upwards. During this process, the material receiving hopper 29 and the discharge port on the material holding box 5 are always in an aligned and connected state.

[0039] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An automatic weighing and feeding mechanism for food processing raw materials, characterized in that: The invention comprises a support tube (1), a feed tube (2), a filling tube (3) and an arc-shaped tooth row (4), wherein the axis of the support tube (1) and the axis of the feed tube (2) are both vertical and coaxial with each other, the filling tube (3) is rotatably mounted at the lower opening of the feed tube (2), and the filling tube (3) and the feed tube (2) are connected to each other, the axis of the lower opening of the filling tube (3) and the axis of the feed tube (2) are offset from each other, and the arc-shaped tooth row (4) is fixed on the outer wall of the filling tube (3); A plurality of material containing boxes (5) are distributed in an annular shape on the inner wall of the support tube (1). The material containing boxes (5) can slide vertically on the support tube (1). A support plate (6) is provided at the bottom of the material containing box (5). A transmission unit and a spring (7) are provided on the support plate (6). The spring (7) is used to provide an upward elastic pulling force for the support plate (6). A gear (8) is provided on the transmission unit for use with the arc-shaped gear row (4). A connecting frame (9) is provided at the bottom of the filling tube (3). An arc-shaped baffle (10) is provided on the connecting frame (9). The bottom of the material holding box (5) is inclined, and a discharge opening is provided on the side wall of the material holding box (5). When the arc-shaped baffle plate (10) moves to the position of the discharge opening of the material holding box (5), the arc-shaped baffle plate (10) blocks the discharge opening.

2. The automatic weighing and feeding mechanism for food processing raw materials according to claim 1, characterized in that: The transmission unit comprises a fixing seat (11) fixed on the outer wall of the support tube (1) and a threaded rod (13) fixed on the support plate (6); a threaded sleeve (12) is inserted and rotatably arranged on the fixing seat (11); the gear (8) is arranged on the top of the threaded sleeve (12); the top of the threaded rod (13) is inserted into the threaded sleeve (12) and is threadably connected to each other.

3. The automatic weighing and feeding mechanism for food processing raw materials according to claim 2, characterized in that: An outer sliding sleeve of the support tube (1) is provided with an outer ring (14), the outer ring (14) slides in a vertical direction, the top of the spring (7) is fixed on the outer ring (14), a plurality of connecting plates (15) are fixed on the outer wall of the support tube (1), and the connecting plates (15) and the outer ring (14) are fastened together by bolts and nuts; In the natural state, the support plate (6) is in contact with the bottom of the support tube (1), and when the outer ring (14) moves in the vertical direction, the amount of raw material stored in the material box (5) changes.

4. The automatic weighing and feeding mechanism for food processing raw materials according to claim 3, characterized in that: A ratchet (16) is fixed to the top of the threaded sleeve (12), and the gear (8) is mounted on the ratchet (16).

5. The automatic weighing and feeding mechanism for food processing raw materials according to claim 4, characterized in that: A support plate (17) is rolled on the side wall of the filling tube (3), a top column (18) is horizontally slidably arranged on the support plate (17), one end of the top column (18) presses against the outer wall of the feeding tube (2), and the other end of the top column (18) is connected to the support plate (17) via a first elastic sheet (19).

6. The automatic weighing and feeding mechanism for food processing raw materials according to claim 5, characterized in that: A material guide plate (20) is obliquely arranged on the top of each material storage box (5).

7. The automatic weighing and feeding mechanism for food processing raw materials according to claim 6, characterized in that: The guide plate (20) on the material holding box (5) is provided with a fixed guide rail (21), a movable guide rail (22) and a slider (23); the movable guide rail (22) slides within a specified interval on the fixed guide rail (21); the slider (23) slides within a specified interval on the movable guide rail (22); a push-pull plate (24) is rotatably provided on the slider (23); the bottom of the push-pull plate (24) is rotatably mounted on the inner wall of the adjacent material holding box (5); and the push-pull plate (24) and the adjacent material holding box (5) are connected via a second elastic sheet (25); Wherein, the material guide plate (20) rotates on the material containing box (5).

8. The automatic weighing and feeding mechanism for food processing raw materials according to claim 7, characterized in that: The support tube (1) is provided with a bottom plate (26) at the bottom, a discharge pipe (27) is vertically inserted on the bottom plate (26), an inclined pipe (28) is provided at the top of the discharge pipe (27), and a receiving hopper (29) is provided on the side wall of the arc-shaped baffle plate (10), and the receiving hopper (29) and the inclined pipe (28) are connected to each other.

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