Closed quantitative feeding flour raw material mixing machine

Abstract

The invention discloses a closed quantitative feeding flour raw material mixing machine, which relates to the technical field of flour processing, and comprises a mixing cylinder and a stirring mechanism in the middle of the mixing cylinder; a material storage box is mounted at the top of the mixing barrel, a discharging auger is arranged below the material storage box, a transmission belt is arranged at the top of the inner side of the mixing barrel, the transmission belt is integrally arranged in an arch shape, and the transmission belt is divided into an arc-shaped section and a straight chord section; a transmission wheel is attached to the side edge of the straight chord section, and the discharging auger is driven in a matched meshing transmission mode through the transmission wheel. An arc-shaped movable baffle is arranged between the arc-shaped section and the side wall of the mixing barrel; the top of the outer end of the stirring mechanism is provided with an attaching movable block which moves synchronously, and quantitative feeding proportion adjustment is carried out by adjusting the attaching interval of the arc-shaped movable baffle and the attaching movable block. According to the invention, the stirring mechanism is used for continuous quantitative feeding during stirring, feeding can be gradually carried out in batches in a small amount to ensure full mixing, and the quantitative feeding proportion of each raw material is ensured to improve the flour processing quality.

Description

Technical Field

[0001] The invention relates to the technical field of flour processing, in particular to a closed quantitative feeding flour raw material mixer. Background Art

[0002] Flour is an indispensable ingredient in our daily life. It can be used to make a wide variety of foods. Conventional flour is usually a single powder directly ground from wheat, and different types of food have different requirements for flour. In addition to conventional seasonings and other additives, the singleness of flour itself is not conducive to improving the taste of pasta products. For example, slightly softer bread, chewier steamed buns or multi-grain pasta products all require different flour materials, so various flour materials need to be mixed, and the mixing process of flour is usually carried out through corresponding stirring and mixing devices.

[0003] At the same time, various additions of flour are usually required to be carried out in a certain ratio while stirring and mixing. For example, the existing stirring and mixing device is a flour mixing device for spicy strip production in CN214413945U, which includes a feeding component, a feeding component and a mixing box. The top of the feeding component is movably installed with a feeding component, and the bottom of the feeding component is movably provided with a mixing box. A fastening bolt is installed between the mixing box and the feeding component. By movably installing the feeding component on the top of the feeding component, the sealing cover can be fixedly installed by using the support block to cooperate with the fastening bolt. The disassembly and assembly are simple, which is convenient for the staff to carry out cleaning work and ensure the normal use of the mixing box. Then, the feeding pipe is used for feeding work, and then the plug is used to be movably connected with the plug sleeve, and then the transparent feeding cylinder is used to add the seasoning, and then the scale line is used to accurately locate the amount of the seasoning, so as to improve the quality of spicy strip production, and then the draw plate is opened to put the seasoning into the inside of the mixing box, so that the staff can carry out the mixing work.

[0004] However, at present, this type of quantitative addition is usually only for the addition of a small amount of additives, and the mixing processing of some large quantities of flour materials is usually still carried out by direct manual or auxiliary mechanical equipment and then stirring. At the same time, the addition is usually carried out directly in large quantities. In order to ensure the uniformity of the mixture, a lot of time is required for stirring, and the mixing efficiency is low. In addition, adding ingredients to flour manually is also prone to errors in the proportion of added ingredients, which will ultimately affect the taste and mouthfeel of the finished pastry. In view of this, in-depth research was conducted on the above-mentioned problems, which led to the creation of this case. Summary of the invention

[0005] The object of the present invention is to provide a closed type quantitative feeding flour raw material mixer to solve the problem that the mixing and processing of large quantities of flour materials is inconvenient for quantitative control and the mixing efficiency is low as mentioned in the above background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solutions: a closed type quantitative feeding flour raw material mixer, comprising a mixing drum and a stirring mechanism in the middle of the mixing drum; A material storage box is installed on the top of the mixing cylinder, and a material unloading auger is arranged below the material storage box, and the material unloading auger is located inside the mixing cylinder; A transmission belt is arranged at the top of the inner side of the mixing cylinder, and the transmission belt is arranged in an arch shape as a whole. The transmission belt is divided into an arc section and a straight chord section, and fitting holes are evenly distributed on the middle surface of the transmission belt as a whole; A transmission wheel is fitted on the side of the straight chord section, and fitting tooth grooves are evenly distributed on the outer ring surface of the transmission wheel, and the fitting tooth grooves are consistent with the fitting holes at the straight chord section; a synchronously rotating meshing gear is coaxially arranged on the side of the transmission wheel; a transmission shaft for driving rotation is arranged at the shaft end of the unloading auger, and a transmission gear is keyed to the shaft end of the transmission shaft, and the transmission gear and the meshing gear constitute a bevel gear meshing transmission structure; The arc segment and the side wall of the mixing cylinder are arranged at equal intervals, and an arc-shaped movable baffle is arranged between the arc segment and the side wall of the mixing cylinder; a synchronously movable fitting block is arranged on the top of the outer end of the stirring mechanism, and a support spring for maintaining elastic support is arranged between the fitting movable block and the top of the stirring mechanism; the fitting movable block is movably fitted with the arc-shaped movable baffle, and the fitting holes of the fitting movable block and the arc segment are mutually matched, and the quantitative feeding ratio is adjusted by adjusting the fitting interval between the arc-shaped movable baffle and the fitting movable block.

[0007] Preferably, the stirring mechanism includes a drive shaft, a stirring paddle body and an external stirring frame, and a drive motor is installed at the top of the mixing barrel corresponding to the drive shaft, the external stirring frame is located outside the drive shaft, and the stirring paddle body is located between the external stirring frame and the drive shaft.

[0008] By adopting the above technical solution, in addition to the stirring paddle main body, an additional external stirring frame can be used to facilitate uniform shear stirring over a large area, thereby ensuring a stirring and mixing effect.

[0009] Preferably, the outer stirring frame is distributed in a cross shape inside the mixing barrel as a whole, and the outer edge of the outer stirring frame is parallel to the inner wall of the mixing barrel; The fitting movable block is located at the inner side of the top end of the outer stirring frame.

[0010] By adopting the above technical solution, the blind area of ​​mixing is reduced by cooperating with the external mixing frame to make the mixing more uniform. At the same time, the fitting movable block can be directly installed on the top of the external mixing frame to cooperate with the transmission belt of the outer ring for synchronous transmission.

[0011] Preferably, a feeding pipe is provided below the material storage box, and the feeding auger is located inside the feeding pipe, and 2-4 material storage boxes are provided around the top of the mixing cylinder.

[0012] By adopting the above technical solution, different raw materials can be stored separately through multiple storage boxes, and the corresponding unloading augers can be used for stable unloading processing, making it convenient to add multiple materials separately.

[0013] Preferably, a connecting soft sleeve is connected between the outer end of the feeding tube and the storage box, and a transmission gear is located at the other end of the feeding tube, and a feeding port is opened at the lower side of the feeding tube near the transmission gear. The connecting soft sleeve, the feeding tube and the feeding port constitute a feeding passage in sequence.

[0014] By adopting the above technical solution, the feeding pipe is used in conjunction with the unloading auger to perform stable feeding and conveying. The feeding pipe is horizontally arranged and the transmission gear is located outside the feeding pipe, and the feeding structure and the driving structure do not affect each other.

[0015] Preferably, a material unloading movable plate is provided on the side of the connecting soft sleeve, and the material unloading movable plate is movably hinged between the material storage box and the feeding tube.

[0016] By adopting the above technical solution, a material unloading movable plate is provided at the connecting soft sleeve, and the connecting soft sleeve can be slapped to make it shake when needed, so that the material can be ensured to fall when the operation starts, and the unloading auger can normally contact the material for stable transportation.

[0017] Preferably, fitting protrusions are evenly distributed on the upper end of the arc-shaped movable baffle, and the fitting protrusions are movably fitted with the lower surface of the material removal movable plate, and a movable fitting groove is provided in the middle of the material removal movable plate corresponding to the fitting protrusions.

[0018] By adopting the above technical scheme, on the one hand, the fitting protrusion can fit and limit at the movable fitting groove, so that it can maintain the limited state of the arc movable baffle during normal operation, maintain the fitting interval of the arc movable baffle and the fitting movable block, and change the quantitative ratio of multiple materials through the proportion of multiple fitting intervals; on the other hand, when the arc movable baffle is active, the fitting protrusion can cooperate with the ups and downs of the active fitting of the arc movable baffle to synchronously drive the movement of the unloading movable plate to clear the material.

[0019] Preferably, an adjusting movable groove is opened on the upper surface of the mixing cylinder corresponding to the arc-shaped movable baffle, and the front and rear sections of the adjusting movable groove are divided into an arc-shaped receiving groove and a movable through groove; the arc-shaped movable baffle forms a telescopic structure on the inner side of the arc-shaped receiving groove, and the arc-shaped movable baffle is movably fitted with the fitting movable block at the movable through groove.

[0020] By adopting the above technical scheme, the arc-shaped movable baffle can be adjusted by telescopic adjustment at the arc-shaped receiving groove and the fitting range of the movable block. The fitting movable block at the movable through groove can directly contact and transmit with the arc-shaped segment of the transmission belt, and the extended arc-shaped movable baffle is restricted at the movable through groove, thereby changing the contact transmission range of the arc segment and the transmission belt, and then adjusting the transmission feeding of the unloading auger.

[0021] Preferably, a guide plate is provided on the inner side of the transmission belt, and the guide plate is arched as a whole, and fixed wheels are installed at the vertices on both sides of the guide plate, and the transmission belt is wound around the outer side of the fixed wheels.

[0022] By adopting the above technical solution, the transmission belt is guided and supported by the guide plate so that it is kept in a stable bow-shaped structure, and the fixed wheel is used to facilitate the stable rotation of the transmission belt at the corner.

[0023] Preferably, movable rollers are evenly distributed on the outer surface of the guide plate, and the movable rollers are arranged in pairs at the upper and lower ends of the guide plate.

[0024] By adopting the above technical scheme, the flexible rotation of the transmission belt is further ensured by the setting of movable rollers. At the same time, the movable rollers arranged in pairs at the upper and lower ends facilitate the rolling guidance of the transmission belt, while leaving a certain gap in the middle to avoid affecting the stable interlocking transmission of the fitting movable block and the transmission belt at the fitting hole.

[0025] Compared with the prior art, the invention has the following beneficial effects: the closed quantitative feeding flour raw material mixer can ensure the quantitative feeding ratio of each raw material to improve the flour processing quality and the taste of the finished pastry after processing, and can be quickly and flexibly adjusted, which is conducive to the flexible quantitative ratio addition of different materials. At the same time, it can be combined with the continuous quantitative feeding method during stirring, and gradually add small amounts of materials in batches to ensure sufficient mixing, further improve the mixing effect, and improve the flour processing efficiency. The specific structural advantages include: 1. Through the continuous stirring of the stirring mechanism and the intermittent transmission of the transmission belt, continuous intermittent feeding is directly carried out inside the closed equipment to ensure the mixing effect. During the use of the equipment, the stirring mechanism continues to stir, and when the fitting movable block on the top of the stirring mechanism moves to the corresponding transmission belt position under each storage box, the fitting movable block will fit into the fitting hole at the arc section of the transmission belt under the elastic support of the support spring, driving the transmission belt to transmit intermittently, and the straight chord section of the transmission belt can drive the transmission wheel to rotate synchronously, and the meshing transmission of the meshing gear and the transmission gear drives the feeding auger to rotate and drive the material to move and feed, thereby achieving continuous intermittent feeding and stirring to ensure the mixing effect; 2. The transmission interval of the fitting movable block and the transmission belt is adjusted by the arc-shaped movable baffle to effectively adjust the quantitative proportion of the corresponding material storage box. During the use of the equipment, the contact interval of the fitting movable block and the arc segment can be adjusted by turning the arc-shaped movable baffle corresponding to each storage box. The part of the arc-shaped movable baffle extending from the arc-shaped receiving groove to the movable through groove and the arc-shaped receiving groove itself will block the contact between the fitting movable block and the arc segment, thereby adjusting the continuous driving time ratio of the fitting movable block and the transmission belt at different storage boxes, and then correspondingly changing the quantitative proportion of the material feeding of different storage boxes; 3. The arc-shaped movable baffle can further cooperate with the material discharge movable plate to slap the material discharge connection, so as to maintain the stable feeding of the material discharge auger to prevent blockage when the material is started to be added. When the material feeding and mixing process begins, the arc-shaped movable baffle is adjusted while the arc-shaped movable baffle can simultaneously drive the material discharge movable plate to rise and fall, and slap the connecting soft sleeve to make it shake. At the beginning of the operation, it can ensure that the material falls, which is convenient for dredging the material to ensure stable feeding. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the mixing cylinder of the present invention; Figure 3 This is a schematic diagram of the structure of the mixing cylinder from another perspective of the present invention; Figure 4 This is a schematic diagram of the stirring mechanism structure of the present invention; Figure 5 This is a schematic diagram of the movable through slot structure of the present invention; Figure 6 This is a schematic diagram of the structure of the arc-shaped storage groove of the present invention; Figure 7 It is a schematic diagram of the structure of the transmission belt and the arc-shaped movable baffle of the present invention; Figure 8 This is a schematic diagram of the internal structure of the feeding pipe of the present invention; Fig. 9 It is a schematic diagram of the structure of the transmission belt and the guide plate of the present invention; Fig.10 This is a schematic diagram of the guide plate structure of the present invention; Fig.11 A schematic diagram of the structure of the arc-shaped movable baffle of the present invention; Fig.12 For the present invention Figure 2 The enlarged structural diagram at a in the middle.

[0027] In the figure: 1. mixing barrel; 2. stirring mechanism; 201. driving shaft; 202. stirring paddle body; 203. outer stirring frame; 3. material storage box; 4. unloading auger; 5. transmission belt; 501. arc segment; 502. straight chord segment; 503. fitting hole; 6. transmission wheel; 7. fitting tooth groove; 8. meshing gear; 9. transmission shaft; 10. transmission gear; 11. arc-shaped movable baffle; 12. fitting movable block; 13. supporting spring; 14. driving motor; 15. feeding pipe; 16. connecting soft sleeve; 17. feeding port; 18. unloading movable plate; 19. fitting protrusion; 20. movable fitting groove; 21. adjusting movable groove; 211. arc-shaped receiving groove; 212. movable through groove; 22. guide plate; 23. fixed wheel; 24. movable roller. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] See also Figure 1-12 The present invention provides a technical solution: a closed type quantitative feeding flour raw material mixer, comprising a mixing drum 1 and a stirring mechanism 2 in the middle of the mixing drum 1; the stirring mechanism 2 comprises a driving shaft 201, a stirring paddle body 202 and an external stirring frame 203, and a driving motor 14 is installed at the top of the mixing drum 1 corresponding to the driving shaft 201, the external stirring frame 203 is located outside the driving shaft 201, and the stirring paddle body 202 is located between the external stirring frame 203 and the driving shaft 201. In addition to the stirring paddle body 202, the use of an additionally arranged external stirring frame 203 can facilitate uniform shear stirring over a large area to ensure the stirring and mixing effect. The external stirring frame 203 is distributed in a cross shape inside the mixing drum 1 as a whole, and the outer edge of the external stirring frame 203 is parallel to the inner wall of the mixing drum 1; the fitting movable block 12 is located on the inner side of the top of the external stirring frame 203. The outer stirring frame 203 cooperates with the stirring to reduce the blind area of ​​the mixing and mixing, making the mixing and mixing more uniform. At the same time, the fitting movable block 12 can be directly installed on the top of the outer stirring frame 203 to cooperate with the outer ring transmission belt 5 for synchronous transmission.

[0030] Combination Figure 1-2 and Figure 6-8 As shown, a storage box 3 is installed on the top of the mixing barrel 1, and a feeding auger 4 is arranged below the storage box 3, and the feeding auger 4 is located inside the mixing barrel 1; a feeding pipe 15 is arranged below the storage box 3, and the feeding auger 4 is located inside the feeding pipe 15, and 2-4 storage boxes 3 are arranged around the top of the mixing barrel 1. Different raw materials can be stored separately through multiple storage boxes 3, and the corresponding feeding auger 4 is used for stable feeding processing, which is convenient for feeding multiple materials separately. A connecting soft sleeve 16 is connected between the outer end of the feeding pipe 15 and the storage box 3, and the transmission gear 10 is located at the other end of the feeding pipe 15, and a feeding port 17 is opened at the lower side of the feeding pipe 15 near the transmission gear 10. The connecting soft sleeve 16, the feeding pipe 15 and the feeding port 17 constitute a feeding passage in sequence. The feeding pipe 15 cooperates with the unloading auger 4 to perform stable feeding and conveying. The feeding pipe 15 is horizontally placed and the transmission gear 10 is located outside the feeding pipe 15. The feeding structure and the driving structure do not affect each other.

[0031] Combination Figure 6-7 and Fig. 9As shown, a transmission belt 5 is arranged at the top of the inner side of the mixing barrel 1, and the transmission belt 5 is arranged in an arch shape as a whole. The transmission belt 5 is divided into an arc section 501 and a straight chord section 502, and the middle surface of the transmission belt 5 as a whole is evenly distributed with fitting holes 503; a transmission wheel 6 is arranged on the side of the straight chord section 502, and the outer ring surface of the transmission wheel 6 is evenly distributed with fitting tooth grooves 7, and the fitting tooth grooves 7 are consistent with the fitting holes 503 at the straight chord section 502; a synchronously rotating meshing gear 8 is coaxially arranged on the side of the transmission wheel 6; a transmission shaft 9 for driving rotation is arranged at the shaft end of the unloading auger 4, and a transmission gear 10 is connected to the shaft end of the transmission shaft 9 by a key, and the transmission gear 10 and The meshing gears 8 constitute a bevel gear meshing transmission structure; the arc segment 501 and the side wall of the mixing drum 1 are arranged at equal intervals, and an arc-shaped movable baffle 11 is arranged between the arc segment 501 and the side wall of the mixing drum 1; a synchronously movable fitting block 12 is arranged at the top of the outer end of the stirring mechanism 2, and a support spring 13 for maintaining elastic support is arranged between the fitting movable block 12 and the top of the stirring mechanism 2; the fitting movable block 12 is movably fitted with the arc-shaped movable baffle 11, and the fitting movable block 12 and the fitting hole 503 of the arc segment 501 are mutually matched, and the quantitative feeding ratio is adjusted by adjusting the fitting interval between the arc-shaped movable baffle 11 and the fitting movable block 12.

[0032] Combination Figure 2 and Fig.11 As shown, a material unloading movable plate 18 is provided on the side of the connecting soft sleeve 16, and the material unloading movable plate 18 is movably hinged between the material storage box 3 and the feeding tube 15. By providing the material unloading movable plate 18 at the connecting soft sleeve 16, the connecting soft sleeve 16 can be slapped to make it shake when needed, so that the material can be ensured to fall when the operation starts, and the unloading auger 4 can normally contact the material for stable transportation. The upper end of the arc-shaped movable baffle 11 is evenly distributed with fitting protrusions 19, and the fitting protrusions 19 and the lower surface of the material unloading movable plate 18 are movably fitted, and a movable fitting groove 20 is opened in the middle of the material unloading movable plate 18 corresponding to the fitting protrusions 19. On the one hand, the fitting protrusion 19 can fit and limit at the movable fitting groove 20, so that it can maintain the limited state of the arc-shaped movable baffle 11 during normal operation, maintain the fitting interval of the arc-shaped movable baffle 11 and the fitting movable block 12, and change the quantitative ratio of multiple materials through the proportion of multiple fitting intervals. On the other hand, when the arc-shaped movable baffle 11 moves, the fitting protrusion 19 can cooperate with the ups and downs of the movable fitting of the arc-shaped movable baffle 11 to synchronously drive the movement of the unloading movable plate 18 to clear the material.

[0033] Combination Figure 5-7 and Fig.11As shown, the upper surface of the mixing barrel 1 is provided with an adjustable movable groove 21 corresponding to the arc-shaped movable baffle 11, and the front and rear sections of the adjustable movable groove 21 are divided into an arc-shaped receiving groove 211 and an active through groove 212; the arc-shaped movable baffle 11 forms a telescopic structure inside the arc-shaped receiving groove 211, and the arc-shaped movable baffle 11 is movably fitted with the fitting movable block 12 at the active through groove 212. The arc-shaped movable baffle 11 can be adjusted by telescopic adjustment at the arc-shaped receiving groove 211 and the fitting interval of the fitting movable block 12, and the fitting movable block 12 at the active through groove 212 can directly contact and drive with the arc-shaped segment 501 of the transmission belt 5, and the extended arc-shaped movable baffle 11 is restricted at the active through groove 212, thereby changing the contact transmission range of the arc-shaped segment 501 and the transmission belt 5, and then adjusting the transmission feeding of the unloading auger 4.

[0034] Combination Figure 9-10 As shown, a guide plate 22 is provided on the inner side of the transmission belt 5, and the guide plate 22 is in an arch shape as a whole, and fixed wheels 23 are installed at the vertices on both sides of the guide plate 22, and the transmission belt 5 is wound around the outside of the fixed wheels 23. The transmission belt 5 is guided and supported by the guide plate 22 to keep it in a stable arch structure, and the fixed wheels 23 are used to facilitate the stable rotation of the transmission belt 5 at the corner. The outer surface of the guide plate 22 is evenly distributed with movable rollers 24, and the movable rollers 24 are arranged in pairs at the upper and lower ends of the guide plate 22. The flexible rotation of the transmission belt 5 is further ensured by the arrangement of the movable rollers 24. At the same time, the movable rollers 24 arranged in pairs at the upper and lower ends facilitate the rolling guidance of the transmission belt 5, and a certain gap is left in the middle to avoid affecting the stable interlocking transmission of the fitting movable block 12 and the transmission belt 5 at the fitting hole 503.

[0035] During the use of the equipment, the stirring mechanism 2 continues to stir, and when the fitting movable block 12 on the top of the stirring mechanism 2 moves to the corresponding transmission belt 5 position under each storage box 3, the fitting movable block 12 will engage with the fitting hole 503 at the arc section 501 of the transmission belt 5 under the elastic support of the support spring 13, driving the transmission belt 5 to transmit intermittently, and the straight chord section 502 of the transmission belt 5 can drive the transmission wheel 6 to rotate synchronously, and the meshing transmission of the meshing gear 8 and the transmission gear 10 drives the unloading auger 4 to rotate, driving the material to move and feed, thereby achieving continuous Intermittent feeding and stirring can ensure the mixing effect. At the same time, the contact area between the fitting movable block 12 and the arc segment 501 can be adjusted by turning the corresponding arc movable baffle 11 at each storage box 3. The part of the arc movable baffle 11 extending from the arc receiving groove 211 to the movable through groove 212 and the arc receiving groove 211 itself will block the contact between the fitting movable block 12 and the arc segment 501, thereby adjusting the continuous driving time ratio of the fitting movable block 12 and the transmission belt 5 at different storage boxes 3, and then correspondingly changing the quantitative ratio of material feeding in different storage boxes 3.

[0036] In summary, by maintaining a stable stirring and continuously adding materials in small quantities, adding materials gradually in batches to ensure sufficient mixing, the mixing effect is further improved, and the flour processing efficiency is improved. At the same time, the quantitative addition ratio of each raw material can be guaranteed to improve the flour processing quality and ensure the taste of the finished pastry after processing.

[0037] Contents not described in detail in this specification belong to the prior art known to professional and technical personnel in the field. Although the embodiments of the present invention have been shown and described, it is understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A closed type quantitative feeding flour raw material mixer, comprising a mixing drum (1) and a stirring mechanism (2) in the middle of the mixing drum (1), characterized in that: A material storage box (3) is installed on the top of the mixing cylinder (1), and a material discharge auger (4) is arranged below the material storage box (3), and the material discharge auger (4) is located inside the mixing cylinder (1); A transmission belt (5) is arranged at the top of the inner side of the mixing cylinder (1), and the transmission belt (5) is arranged in an arch shape as a whole. The transmission belt (5) is divided into an arc section (501) and a straight section (502), and fitting holes (503) are evenly distributed on the middle surface of the transmission belt (5); A transmission wheel (6) is provided on the side of the straight chord section (502), and a matching tooth groove (7) is evenly distributed on the outer ring surface of the transmission wheel (6), and the matching tooth groove (7) is matched with the matching hole (503) at the straight chord section (502); a synchronously rotating meshing gear (8) is coaxially provided on the side of the transmission wheel (6); a transmission shaft (9) for driving rotation is provided on the shaft end of the unloading auger (4), and a transmission gear (10) is key-connected to the shaft end of the transmission shaft (9), and the transmission gear (10) and the meshing gear (8) constitute a bevel gear meshing transmission structure; The arc segment (501) and the side wall of the mixing cylinder (1) are arranged at equal intervals, and an arc-shaped movable baffle (11) is arranged between the arc segment (501) and the side wall of the mixing cylinder (1); a synchronously movable fitting block (12) is arranged at the top of the outer end of the stirring mechanism (2), and a support spring (13) for maintaining elastic support is arranged between the fitting movable block (12) and the top of the stirring mechanism (2); the fitting movable block (12) and the arc-shaped movable baffle (11) are movably fitted, and the fitting movable block (12) and the fitting hole (503) of the arc segment (501) are mutually matched, and the quantitative feeding ratio is adjusted by adjusting the fitting interval between the arc-shaped movable baffle (11) and the fitting movable block (12).

2. A closed type quantitative feeding flour raw material mixer according to claim 1, characterized in that: The stirring mechanism (2) comprises a driving shaft (201), a stirring paddle body (202) and an external stirring frame (203), and a driving motor (14) is installed at the top of the mixing barrel (1) corresponding to the driving shaft (201), the external stirring frame (203) is located outside the driving shaft (201), and the stirring paddle body (202) is located between the external stirring frame (203) and the driving shaft (201).

3. A closed type quantitative feeding flour raw material mixer according to claim 2, characterized in that: The outer stirring frame (203) is distributed in a cross shape inside the mixing barrel (1) as a whole, and the outer edge of the outer stirring frame (203) is parallel to the inner wall of the mixing barrel (1); The fitting movable block (12) is located on the inner side of the top end of the outer stirring frame (203).

4. A closed type quantitative feeding flour raw material mixer according to claim 1, characterized in that: A feeding pipe (15) is arranged below the material storage box (3), and a feeding auger (4) is located inside the feeding pipe (15), and 2 to 4 material storage boxes (3) are arranged around the top of the mixing cylinder (1).

5. A closed type quantitative feeding flour raw material mixer according to claim 4, characterized in that: A connecting soft sleeve (16) is connected between the outer end of the feeding tube (15) and the material storage box (3), the transmission gear (10) is located at the other end of the feeding tube (15), and a feeding port (17) is opened at the lower side of the feeding tube (15) near the transmission gear (10), and the connecting soft sleeve (16), the feeding tube (15) and the feeding port (17) sequentially constitute a feeding passage.

6. A closed type quantitative feeding flour raw material mixer according to claim 5, characterized in that: A material unloading movable plate (18) is provided on the side of the connecting soft sleeve (16), and the material unloading movable plate (18) is movably hinged between the material storage box (3) and the feeding pipe (15).

7. A closed type quantitative feeding flour raw material mixer according to claim 6, characterized in that: The upper end of the arc-shaped movable baffle (11) is evenly distributed with fitting protrusions (19), and the fitting protrusions (19) and the lower surface of the material removal movable plate (18) are movably fitted, and a movable fitting groove (20) is provided in the middle of the material removal movable plate (18) corresponding to the fitting protrusions (19).

8. A closed type quantitative feeding flour raw material mixer according to claim 1, characterized in that: An adjusting movable groove (21) is provided on the upper surface of the mixing cylinder (1) corresponding to the arc-shaped movable baffle (11), and the front and rear sections of the adjusting movable groove (21) are divided into an arc-shaped receiving groove (211) and a movable through groove (212); the arc-shaped movable baffle (11) forms a telescopic structure inside the arc-shaped receiving groove (211), and the arc-shaped movable baffle (11) is movably fitted with the fitting movable block (12) at the movable through groove (212).

9. A closed type quantitative feeding flour raw material mixer according to claim 1, characterized in that: A guide plate (22) is disposed on the inner side of the transmission belt (5), and the guide plate (22) is arched as a whole. Fixed wheels (23) are installed at the vertices on both sides of the guide plate (22), and the transmission belt (5) is wound around the outside of the fixed wheels (23).

10. A closed type quantitative feeding flour raw material mixer according to claim 9, characterized in that: Movable rollers (24) are evenly distributed on the outer surface of the guide plate (22), and the movable rollers (24) are arranged in pairs at the upper and lower ends of the guide plate (22).

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