A flour rapid drying and screening integrated device
By designing an integrated device for rapid flour drying and screening, the problem of uneven flour drying is solved by utilizing the rotational coordination of the ring base, screen cylinder, and lever, combined with the drive of a worm gear reducer and a reciprocating motor, thus achieving efficient flour drying and screening.
Patent Information
- Application Number
- CN202522304084.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-30
- Publication Date
- 2026-11-06
- Estimated Expiration
- 2035-10-30
AI Technical Summary
In existing flour drying and screening equipment, the feeding rod can only work in a fixed position, which leads to uneven flour drying and easily affects the screening effect.
An integrated device for rapid flour drying and screening was designed. Through the cooperation of components such as a ring base, a screen cylinder, a straight shaft, and a lever, the screen cylinder is rotated and the lever is reciprocated. Combined with the drive of a worm gear reducer and a reciprocating motor, the flour is uniformly dispersed and dried.
It achieves uniform drying and screening of flour, reduces the risk of flour leakage and splashing, and improves drying efficiency and screening effect.
Smart Images

Figure CN224938562U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of flour drying and screening equipment, specifically to an integrated device for rapid flour drying and screening. Background Technology
[0002] Flour is a powdery substance made from milled wheat. Based on its protein content, flour can be classified into high-gluten flour, medium-gluten flour, low-gluten flour, and gluten-free flour. During the humid and rainy summer season, some microorganisms in flour multiply rapidly, leading to mold growth and affecting flour quality. Regularly drying flour can extend its shelf life, increase market share, and reduce quality risks. Therefore, there is a need for an automatic flour dryer to prevent mold growth. Patent number CN202323385019.6 discloses a fully automatic intelligent flour drying device that uses electricity... The machine drives a rotating shaft, which in turn drives a first gear. The first gear then drives a second gear and a support shaft, which in turn drives a screen cylinder. This screen cylinder tumbles the flour, spreading it out and accelerating drying. During tumbling, the flour comes into contact with multiple feeding rods, which break up clumps of flour and improve drying efficiency. However, in the use of flour drying and screening equipment, the fixed position of the fixed column means the feeding rods can only feed material from a fixed location inside the screen cylinder. This can negatively impact the drying and screening process as the screen cylinder rotates. Therefore, we propose an integrated device for rapid flour drying and screening. Utility Model Content
[0003] To address the problems in the existing technology, this utility model provides an integrated device for rapid drying and screening of flour.
[0004] The technical solution adopted by this utility model to solve its technical problem is an integrated device for rapid drying and screening of flour, including a frame. The top surface of the frame is integrally constructed with a ring seat for support, and there are two sets of ring seats. A sieve cylinder for screening flour is rotatably installed between the two sets of ring seats. A sealing cover is bolted to the outer wall surface of the ring seat. A cylinder seat for support is bolted to the outer wall surface of the disc cover. A straight shaft for adjustment is slidably installed on the inner side of the cylinder seat. An arc-shaped groove that fits the cylinder seat is opened on the outer circumference of the straight shaft. A lever is integrally constructed at one end of the straight shaft located inside the sieve cylinder.
[0005] The inner circumference of the straight shaft is fitted with a threaded sleeve for adjustment by bolts, and the outer wall surface of the disc cover is fitted with an L-shaped plate for support. The outer wall surface of the L-shaped plate is fitted with a worm gear reducer for support by bolts, and the power output end of the worm gear reducer is fitted with a lead screw that is screwed into the threaded sleeve. The power input end of the worm gear reducer is fitted with a reciprocating motor.
[0006] By adopting the above technical solution, during the use of the flour rapid drying and screening equipment, the drive structure can drive the screen cylinder between the two sets of ring seats to rotate and dry and screen the flour. At the same time, the protrusion inside the cylinder seat can fit with the arc groove on the outer periphery of the straight shaft and facilitate sliding displacement, so that the straight shaft can drive the lever to move back and forth and slide inside the screen cylinder, which facilitates the dispersing of the flour inside the screen cylinder. The reciprocating lever can make the flour dispersed more evenly.
[0007] During the drying and screening of flour, the reciprocating motor at the power input end of the worm gear reducer on the L-shaped plate outside the screen cover is activated. The operation of the reciprocating motor facilitates the rotation of the lead screw under the operation of the worm gear reducer, allowing the lead screw to engage with the threaded sleeve on the inner circumference of the straight shaft. Under the force of the engagement, the straight shaft is driven to slide and move inside the cylinder, which in turn drives the lever to move back and forth inside the screen cylinder. At the same time, the heating rod on the outer circumference of the lever is activated, generating heat to dry and heat the flour, facilitating screening. The operation of the reciprocating motor also allows the lever to move back and forth, facilitating the breaking up of the flour.
[0008] Specifically, the outer periphery of the disc cover is bolted with an L-shaped tube for guiding material, and a feeding screw for guiding material is rotatably installed inside the L-shaped tube. The outer wall surface of the L-shaped tube is bolted with an electric motor for driving the feeding screw.
[0009] By adopting the above technical solution, the L-shaped tube facilitates the feeding of flour to be dried, allowing the flour to be added more stably into the screen cylinder, which is convenient for subsequent screening. At the same time, it enables the motor to operate and drive the feeding screw inside the L-shaped tube to rotate, allowing the flour to be added more stably into the screen cylinder, which is convenient for subsequent drying and screening.
[0010] Specifically, a hopper is fitted onto the top surface of the L-shaped tube.
[0011] By adopting the above technical solution, the hopper allows flour to be added more smoothly into the L-shaped tube, facilitating the feeding process.
[0012] Specifically, the top surface of the hopper is hinged with a cover plate for sealing.
[0013] By adopting the above technical solution, the cover plate is easy to open and close, and it is convenient to seal and protect the hopper.
[0014] Specifically, a frame bucket located at the bottom of the screen cylinder is assembled between the two sets of ring seats, and an arc-shaped cover located on the outer periphery of the screen cylinder is bolted to the top surface of the frame bucket.
[0015] By adopting the above technical solution, the flour that has been heated and screened inside the sieve cylinder can fall into the hopper, allowing the flour to be discharged to the designated position. The arc-shaped cover facilitates cooperation with the hopper and reduces the random splashing of flour during screening, enabling the screened flour to be discharged more stably.
[0016] Specifically, the arc-shaped cover and the frame both fit into the ring base.
[0017] By adopting the above technical solution, the two ends of the arc-shaped cover and the two ends of the frame hopper are respectively fitted with the ring seat, which facilitates the improvement of the tightness of the connection between the frame hopper and the arc-shaped cover and the ring seat, thereby reducing the leakage of flour.
[0018] Compared with the prior art, the present invention has the following beneficial effects:
[0019] 1. The technical solution of this application, through the design of ring seat, screen cylinder, disc cover, cylinder seat, straight shaft, arc groove and lever, enables the drive structure to drive the screen cylinder between the two sets of ring seats to rotate and dry and screen the flour during the use of the flour rapid drying and screening equipment. At the same time, the protrusion inside the cylinder seat can fit with the arc groove on the outer periphery of the straight shaft and facilitate sliding displacement, so that the straight shaft can drive the lever to move back and forth and slide inside the screen cylinder, which facilitates the dispersing of the flour inside the screen cylinder. Moreover, the reciprocating movement of the lever can make the flour dispersed more evenly.
[0020] 2. The technical solution of this application, through the design of an L-shaped plate, a threaded sleeve, a worm gear reducer, a lead screw, and a reciprocating motor, enables the reciprocating motor at the power input end of the worm gear reducer on the outer L-shaped plate of the disc cover to operate during the drying and screening of flour. The operation of the reciprocating motor facilitates the rotation of the lead screw under the operation of the worm gear reducer, allowing the lead screw to engage with the threaded sleeve on the inner circumference of the straight shaft. This engagement force drives the straight shaft to slide within the cylinder, which in turn facilitates the reciprocating movement of the lever within the sieve cylinder. Simultaneously, the heating rod on the outer circumference of the lever operates, generating heat to dry and heat the flour, facilitating screening. Furthermore, the reciprocating motor's operation causes the lever to reciprocate, facilitating the dispersing of the flour. Attached Figure Description
[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0022] Figure 1 This is an isometric view of the present invention;
[0023] Figure 2 This is a schematic diagram of the connection structure between the disc cover and the lever of this utility model;
[0024] Figure 3This is a schematic diagram of the connection structure between the feeding screw and the hopper of this utility model;
[0025] In the diagram: 1. Frame; 2. Ring seat; 3. Screen cylinder body; 4. Disc cover; 5. Cylinder seat; 6. Straight shaft; 7. Arc groove; 8. L-shaped lever; 9. L-shaped plate; 10. Threaded sleeve; 11. Worm gear reducer; 12. Lead screw; 13. Reciprocating motor; 14. L-shaped tube; 15. Feeding screw; 16. Motor; 17. Hopper; 18. Cover plate; 19. Frame hopper; 20. Arc cover. Detailed Implementation
[0026] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0027] Please see Figure 1-3 This utility model provides a technical solution: an integrated device for rapid drying and screening of flour, including a frame 1. The top surface of the frame 1 has an integrally formed ring seat 2 for support, and there are two sets of ring seats 2. A sieve cylinder 3 for flour screening is rotatably installed between the two sets of ring seats 2. A sealing disc cover 4 is bolted to the outer wall surface of the ring seat 2. A supporting cylinder seat 5 is bolted to the outer wall surface of the disc cover 4. A straight shaft 6 for adjustment is slidably installed inside the cylinder seat 5. An arc-shaped groove 7 is provided to fit the cylinder base 5, and a lever 8 is integrally constructed at one end of the straight shaft 6 located inside the screen cylinder; a threaded sleeve 10 for adjustment is installed on the inner circumference of the straight shaft 6 by bolts, and an L-shaped plate 9 for support is installed on the outer wall surface of the disc cover 4. A worm gear reducer 11 for support is installed on the outer wall surface of the L-shaped plate 9 by bolts, and a lead screw 12 that is screwed into the threaded sleeve 10 is installed at the power output end of the worm gear reducer 11. A reciprocating motor 13 is installed at the power input end of the worm gear reducer 11.
[0028] When in use, the flour rapid drying and screening equipment can drive the drive structure to rotate the screen cylinder 3 between the two sets of ring seats 2 and dry and screen the flour. At the same time, the protrusion inside the cylinder seat 5 can fit with the arc groove 7 on the outer periphery of the straight shaft 6 and facilitate sliding displacement. This allows the straight shaft 6 to drive the lever 8 to move back and forth and slide inside the screen cylinder 3, which facilitates the dispersing of the flour inside the screen cylinder 3. The reciprocating lever 8 can make the flour dispersed more evenly.
[0029] When drying and screening flour, the reciprocating motor 13 at the power input end of the worm gear reducer 11 on the outer L-shaped plate 9 of the disc cover 4 can operate. The operation of the reciprocating motor 13 facilitates the rotation of the lead screw 12 under the operation of the worm gear reducer 11, so that the lead screw 12 can be screwed into the threaded sleeve 10 on the inner circumference of the straight shaft 6. Under the screwing force, the straight shaft 6 can be driven to slide and move inside the cylinder 5, which in turn facilitates the reciprocating movement of the lever 8 inside the sieve cylinder 3. At the same time, the heating rod on the outer circumference of the lever 8 can operate and generate heat to dry and heat the flour, which is convenient for screening. Under the operation of the reciprocating motor 13, the lever 8 can be moved back and forth, which is convenient for breaking up the flour.
[0030] like Figure 1 and Figure 3 As shown, an L-shaped tube 14 for guiding material is bolted to the open end of the outer periphery of the cover 4, and a feeding screw 15 for guiding material is rotatably installed on the inner side of the L-shaped tube 14. An electric motor 16 for driving the feeding screw 15 is bolted to the outer wall surface of the L-shaped tube 14.
[0031] When in use, the L-shaped tube 14 facilitates the feeding of flour to be dried, allowing the flour to be added more stably into the screen cylinder 3, which is convenient for subsequent screening. At the same time, it enables the motor 16 to operate and drive the feeding screw 15 inside the L-shaped tube 14 to rotate, allowing the flour to be added more stably into the screen cylinder 3, which is convenient for subsequent drying and screening.
[0032] like Figure 1 and Figure 3 As shown, a hopper 17 is fitted on the top surface of the L-shaped tube 14.
[0033] When in use, the hopper 17 allows the flour to be fed into the L-shaped tube 14 more smoothly, making it easier to guide the flour.
[0034] like Figure 1 and Figure 3 As shown, a cover plate 18 for sealing is hinged to the top surface of the hopper 17.
[0035] When in use, the cover plate 18 is easy to open and close, and facilitates sealing and protection of the hopper 17.
[0036] like Figure 1 As shown, a frame hopper 19 located at the bottom of the screen cylinder 3 is assembled between the two sets of ring seats 2, and an arc-shaped cover 20 located on the outer periphery of the screen cylinder 3 is bolted to the top surface of the frame hopper 19.
[0037] During use, the flour that has been heated and screened inside the sieve cylinder 3 falls into the hopper 19, allowing the flour to be discharged to the designated position. The arc-shaped cover 20 can easily cooperate with the hopper 19 and can reduce the random splashing of flour during screening, so that the screened flour can be discharged more stably.
[0038] like Figure 1 As shown, the arc-shaped cover 20 and the frame 19 both fit into the ring seat 2.
[0039] When in use, the two ends of the arc-shaped cover 20 and the two ends of the frame 19 fit together with the ring seat 2, which facilitates the tightness of the connection between the frame 19 and the arc-shaped cover 20 and the ring seat 2, thereby reducing the leakage of flour.
[0040] The working principle and usage process of this utility model are as follows: In use, first, install the corresponding structural components in suitable positions to facilitate the feeding of flour to be dried and screened from the hopper 17 into the L-shaped tube 14. Then, use the controller to operate the motor 16, which conveniently drives the feeding screw 15 inside the L-shaped tube 14 to rotate, allowing the flour to be added more stably into the sieve cylinder 3. This enables the drive structure to rotate the sieve cylinder 3 between the two sets of ring seats 2, drying and screening the flour. Simultaneously, the protrusion inside the cylinder seat 5 engages with the arc-shaped groove 7 on the outer periphery of the straight shaft 6, facilitating sliding displacement. This allows the straight shaft 6 to drive the lever 8 to reciprocate and slide within the sieve cylinder 3, easily dispersing the flour inside. The reciprocating lever 8 ensures more even flour dispersion and enables the reciprocating motor 13 at the power input end of the worm gear reducer 11 on the outer L-shaped plate 9 of the disc cover 4 to operate. The machine 13 operates conveniently by rotating the lead screw 12 under the operation of the worm gear reducer 11. This allows the lead screw 12 to engage with the threaded sleeve 10 on the inner circumference of the straight shaft 6. Under the force of the engagement, the straight shaft 6 slides within the cylinder seat 5, which in turn drives the lever 8 to move back and forth within the sieve cylinder 3. Simultaneously, the heating rod on the outer circumference of the lever 8 operates, generating heat to dry and heat the flour, facilitating its screening. The reciprocating motor 13 also causes the lever 8 to move back and forth, further dispersing the flour and ensuring more stable drying and screening. The heated and screened flour inside the sieve cylinder 3 falls into the hopper 19, discharging it to a designated location. The arc-shaped cover 20 works in conjunction with the hopper 19, reducing the risk of flour splashing during screening and ensuring more stable discharge of the screened flour. The integrated structure makes it more stable and convenient to use.
[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. An integrated device for rapid drying and screening of flour, characterized in that, The machine includes a frame (1), the top surface of which is integrally constructed with a ring seat (2) for support, and there are two sets of ring seats (2). A sieve cylinder (3) for flour screening is rotatably installed between the two sets of ring seats (2). A disc cover (4) for sealing is bolted to the outer wall surface of the ring seat (2). A cylinder seat (5) for support is bolted to the outer wall surface of the disc cover (4). A straight shaft (6) for adjustment is slidably installed on the inner side of the cylinder seat (5). An arc groove (7) that fits the cylinder seat (5) is opened on the outer circumference of the straight shaft (6). A lever (8) is integrally constructed at one end of the straight shaft (6) located inside the sieve cylinder. The inner circumference of the straight shaft (6) is fitted with a threaded sleeve (10) for adjustment by bolts, and the outer wall surface of the disc cover (4) is fitted with an L-shaped plate (9) for support. The outer wall surface of the L-shaped plate (9) is fitted with a worm gear reducer (11) for support by bolts, and the power output end of the worm gear reducer (11) is fitted with a lead screw (12) that is screwed into the threaded sleeve (10). The power input end of the worm gear reducer (11) is fitted with a reciprocating motor (13).
2. The integrated rapid flour drying and screening device according to claim 1, characterized in that, The outer periphery of the disc cover (4) is bolted to an L-shaped tube (14) for guiding material, and a feeding screw (15) for guiding material is rotatably installed on the inner side of the L-shaped tube (14). The outer wall surface of the L-shaped tube (14) is bolted to a motor (16) for driving the feeding screw (15) in a transmission connection.
3. The integrated device for rapid drying and screening of flour according to claim 2, characterized in that, The top surface of the L-shaped tube (14) is fitted with a hopper (17).
4. The integrated rapid flour drying and screening device according to claim 3, characterized in that, The top surface of the hopper (17) is hinged to a cover plate (18) for sealing.
5. The integrated rapid flour drying and screening device according to claim 1, characterized in that, Between the two sets of ring seats (2), a frame bucket (19) located at the bottom of the screen cylinder (3) is assembled, and an arc-shaped cover (20) located on the outer periphery of the screen cylinder (3) is bolted to the top surface of the frame bucket (19).
6. The integrated device for rapid drying and screening of flour according to claim 5, characterized in that, The arc-shaped cover (20) and the frame (19) both fit into the ring base (2).
Citation Information
Patent Citations
Full-automatic intelligent flour drying device
CN221781104U
