Automatic stirring device of flour falling number tester

Abstract

The application relates to the technical field of flour falling number value testers, in particular to an automatic stirring device of a flour falling number value tester, which comprises a stirring driving assembly and a stirring executing assembly. The stirring driving assembly is connected with a stirring shaft through a transmission mechanism, drives the rotation of stirring blades, the stirring blades are adjusted in angle and position through an adjusting mechanism, and the different sample amounts or viscosity requirements can be adapted. A flow guide plate is arranged at the top of a shell, and a baffle is arranged at the bottom of the shell, which are respectively used for guiding feeding and controlling discharging. The stirring driving assembly and the stirring executing assembly are arranged, power is provided through a motor and a speed reducer, power is transmitted to the stirring shaft through a gear set and a transmission rod, the rotation of the stirring blades is driven, and the stirring operation on the flour is completed. The stirring blades are connected with the stirring shaft through the adjusting mechanism, the angle and position of the stirring blades can be adjusted according to actual requirements, the stirring requirements of different sample amounts or viscosities can be adapted, and the stirring efficiency and uniformity are improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of food testing equipment, specifically an automatic stirring device for a flour falling value tester. Background Technology

[0002] In flour quality testing, the falling number is a crucial indicator of flour quality. Currently, existing flour falling number testers on the market typically require manual stirring, a method highly dependent on human effort and prone to uneven mixing due to human error, affecting the accuracy of the results. Furthermore, existing stirring devices often employ a single-drive design, making it difficult to adapt to varying sample volumes or viscosities, thus limiting the equipment's applicability. While some existing stirring devices utilize complex mechanical transmission mechanisms, their designs are often fixed and lack flexibility, making adjustments inconvenient for different testing needs. These factors indicate that existing technologies still have room for improvement in terms of stirring efficiency, ease of operation, and adaptability.

[0003] Therefore, we have made improvements to this by proposing an automatic stirring device for a flour falling value measuring instrument. Utility Model Content

[0004] The purpose of this invention is to solve the problems of existing flour falling value measuring instruments' stirring devices relying on manual operation, uneven stirring, and lack of flexibility in structural design.

[0005] To achieve the above objectives, this utility model provides an automatic stirring device for a flour falling value tester, including a stirring drive component and a stirring execution component. The stirring drive component is connected to the stirring execution component via a transmission mechanism. The stirring execution component includes a stirring shaft and stirring blades. Mounting seats are provided at both ends of the stirring shaft. The mounting seats are used to fix the stirring shaft and enable it to rotate around its own axis. The stirring blades are distributed along the axial direction of the stirring shaft, and the stirring blades are connected to the stirring shaft via an adjustment mechanism. The adjustment mechanism is used to adjust the angle and position of the stirring blades to adapt to the stirring requirements of different sample amounts or viscosities.

[0006] The stirring drive assembly includes a motor and a reducer. The output shaft of the motor is connected to the input end of the reducer. The output end of the reducer is connected to one end of the stirring shaft through a transmission mechanism. The transmission mechanism includes a gear set and a transmission rod. The gear set consists of multiple meshing gears. One gear is fixed to the output end of the reducer, and another gear is fixed to one end of the transmission rod. The other end of the transmission rod is connected to the stirring shaft. Power is transmitted to the stirring shaft through the meshing transmission of the gear set.

[0007] As a preferred technical solution of this application, the adjustment mechanism includes a sliding sleeve and a locking bolt. The sliding sleeve is sleeved on the outside of the stirring shaft. The outside of the sliding sleeve is provided with a mounting hole. The stirring blade is connected to the sliding sleeve through the mounting hole. The locking bolt passes through the outer wall of the sliding sleeve. By tightening the locking bolt, the sliding sleeve is fixed on the stirring shaft, thereby fixing the position of the stirring blade.

[0008] As a preferred technical solution of this application, the stirring blade includes a base plate and a scraper. The inner side of the base plate is provided with a connecting hole, which is aligned with the mounting hole of the sliding sleeve and connected by bolts. The scraper is fixed on the outer side of the base plate and the scraper is arc-shaped with the convex surface of the arc facing the stirring direction. The surface of the scraper is provided with a number of grooves, which are distributed along the length of the scraper to increase the disturbance effect on the flour during the stirring process.

[0009] As a preferred technical solution of this application, the mounting base includes a fixed base and a bearing. The fixed base is fixed on the inner wall of the housing of the stirring device, and the bearing is embedded in the inside of the fixed base. The two ends of the stirring shaft are respectively inserted into the inner rings of the two bearings. The rolling friction of the bearings reduces the resistance when the stirring shaft rotates. The outer side of the fixed base is provided with a positioning hole, which is used to fix the fixed base to the housing with bolts.

[0010] As a preferred technical solution of this application, keyways are provided at both ends of the transmission rod. The keyways are connected to the stirring shaft and the gear by a key. The cross-sectional shape of the key is rectangular. The width of the keyway matches the width of the key. The length of the key is less than the depth of the keyway. The synchronous rotation between the transmission rod, the stirring shaft, and the gear is achieved by connecting them by the key.

[0011] As a preferred technical solution of this application, the top of the shell is provided with a feed inlet, and the inner side of the feed inlet is provided with a guide plate. The guide plate is inclined, with one end connected to the inner wall of the feed inlet and the other end extending to the top of the stirring shaft. The surface of the guide plate is provided with a plurality of guide grooves, which are distributed along the inclined direction of the guide plate to guide the flour into the stirring area evenly.

[0012] As a preferred technical solution of this application, the bottom of the shell is provided with a discharge port, the inner side of the discharge port is provided with a baffle, the baffle is slidably connected to the bottom of the shell, and the outer side of the baffle is provided with a pull rod. One end of the pull rod is fixedly connected to the baffle, and the other end extends to the outside of the shell. By pulling the pull rod, the opening and closing of the baffle is controlled, thereby controlling the discharge of flour.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: By incorporating a stirring drive assembly and a stirring execution assembly, power is provided by a motor and reducer, and transmitted to the stirring shaft via gear sets and transmission rods. This drives the stirring blades to rotate, completing the stirring operation of the flour. The stirring blades are connected to the stirring shaft via an adjustment mechanism, allowing users to adjust the angle and position of the blades according to actual needs, adapting to different sample volumes or viscosities and improving stirring efficiency and uniformity. Simultaneously, the stirring shaft is connected to the mounting base via bearings, reducing frictional resistance during rotation and extending the equipment's service life. The guide plate at the top of the housing and the baffle at the bottom guide flour into the stirring zone and control flour discharge, respectively, further improving the equipment's ease of operation and applicability. The above technical solution solves the problems of existing stirring devices relying on manual operation, uneven stirring, and lack of structural design flexibility. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the stirring actuator.

[0016] Figure 3 This is a schematic diagram of the transmission mechanism.

[0017] Figure 4 This is a schematic diagram of the material outlet and baffle at the bottom of the shell.

[0018] The attached figures are labeled as follows: 1. Stirring drive assembly; 2. Stirring execution assembly; 3. Stirring shaft; 4. Stirring blades; 5. Adjustment mechanism; 6. Transmission mechanism; 7. Gear set; 8. Transmission rod; 9. Housing; 10. Feed inlet; 11. Guide plate; 12. Discharge outlet; 13. Baffle; 14. Pull rod. Detailed Implementation

[0019] This utility model provides an automatic stirring device for a flour falling value tester, the overall structure of which is as follows: Figure 1 As shown, the device includes a stirring drive assembly 1, a stirring execution assembly 2, and a housing 9. The stirring drive assembly 1 is connected to the stirring execution assembly 2 via a transmission mechanism 6. The stirring execution assembly 2 is located inside the housing 9. The housing 9 has a feed inlet 10 at the top and a discharge outlet 12 at the bottom. The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0020] The stirring drive assembly 1 includes a motor and a reducer. The output shaft of the motor is connected to the input end of the reducer, and the output end of the reducer is connected to the stirring shaft 3 in the stirring execution assembly 2 via a transmission mechanism 6. The specific structure of the transmission mechanism 6 is as follows: Figure 3As shown, the device includes a gear set 7 and a transmission rod 8. The gear set 7 consists of multiple meshing gears, one of which is fixed to the output end of the reducer, and another gear is fixed to one end of the transmission rod 8. The other end of the transmission rod 8 is connected to the stirring shaft 3. Keyways are provided at both ends of the transmission rod 8. The keyways are connected to the stirring shaft 3 and the gears via keys. The cross-sectional shape of the key is rectangular, the width of the keyway matches the width of the key, and the length of the key is less than the depth of the keyway. The key connection enables synchronous rotation between the transmission rod 8, the stirring shaft 3, and the gears, thereby transmitting power from the motor to the stirring shaft 3.

[0021] The stirring actuator 2 includes a stirring shaft 3 and stirring blades 4. Mounting seats are provided at both ends of the stirring shaft 3, which are used to fix the stirring shaft 3 and enable it to rotate around its own axis. The specific structure of the mounting seat includes a fixed base and bearings. The fixed base is fixed to the inner wall of the housing 9, and the bearings are embedded inside the fixed base. Both ends of the stirring shaft 3 are inserted into the inner rings of the two bearings, reducing the resistance to rotation of the stirring shaft 3 through rolling friction of the bearings. Positioning holes are provided on the outer side of the fixed base, which are used to fix the fixed base to the housing 9 with bolts, thereby ensuring the stability of the stirring shaft 3 during operation.

[0022] The stirring blades 4 are distributed along the axial direction of the stirring shaft 3 and are connected to the stirring shaft 3 via the adjusting mechanism 5. The specific structure of the adjusting mechanism 5 is as follows: Figure 2 As shown, the device includes a sliding sleeve and a locking bolt. The sliding sleeve is fitted onto the outside of the stirring shaft 3. The outer side of the sliding sleeve has mounting holes through which the stirring blades 4 connect. The locking bolt passes through the outer wall of the sliding sleeve; tightening the locking bolt secures the sliding sleeve to the stirring shaft 3, thus fixing the position of the stirring blades 4. Users can adjust the angle and position of the stirring blades 4 according to actual needs to adapt to stirring requirements of different sample volumes or viscosities.

[0023] The stirring blade 4 comprises a base plate and a scraper. The inner side of the base plate has a connecting hole, which aligns with the mounting hole of the sliding sleeve and is connected by bolts. The scraper is fixed to the outer side of the base plate, and the scraper is arc-shaped with its convex surface facing the stirring direction. The surface of the scraper has several grooves distributed along its length to increase the agitation of the flour during stirring.

[0024] The top of the housing 9 is provided with a feed inlet 10, and the inner side of the feed inlet 10 is provided with a guide plate 11, the structure of which is as follows: Figure 2As shown. The guide plate 11 is inclined, with one end connected to the inner wall of the feed inlet 10 and the other end extending above the stirring shaft 3. The surface of the guide plate 11 is provided with several guide grooves, distributed along the inclined direction of the guide plate 11, to guide flour evenly into the stirring area. The bottom of the shell 9 is provided with a discharge port 12, and the inner side of the discharge port 12 is provided with a baffle 13, which is slidably connected to the bottom of the shell 9. A pull rod 14 is provided on the outer side of the baffle 13, with one end fixedly connected to the baffle 13 and the other end extending to the outside of the shell 9. Pulling the pull rod 14 controls the opening and closing of the baffle 13, thereby controlling the discharge of flour.

[0025] In actual operation, the flour to be mixed is first poured into the housing 9 through the feed inlet 10. Under the action of gravity, the flour slides down along the guide plate 11, and the guide grooves on the guide plate 11 ensure that the flour is evenly distributed in the mixing area. After the motor is started, the output shaft of the motor drives the reducer to rotate. The output end of the reducer transmits power to the transmission rod 8 through the gear set 7, and the transmission rod 8 then transmits power to the mixing shaft 3 through a key connection. The mixing shaft 3 rotates around its own axis under the support of the bearings, while driving the mixing blades 4 to perform the mixing operation. The scrapers on the mixing blades 4 disturb the flour during rotation, and the grooves further enhance the mixing effect. After mixing is completed, the baffle 13 is opened by pulling the lever 14, and the mixed flour is discharged from the discharge port 12.

[0026] During use, users can adjust the position and angle of the stirring blades 4 according to actual needs. The specific operating steps are as follows: Loosen the locking bolts to allow the sliding sleeve to slide on the stirring shaft 3, and simultaneously adjust the rotation angle of the sliding sleeve to change the direction of the stirring blades 4. After adjustment, tighten the locking bolts to fix the sliding sleeve on the stirring shaft 3. This design allows the stirring device to flexibly adapt to the stirring requirements of different sample volumes or viscosities, thus expanding the applicability of the equipment.

[0027] The stirring shaft 3 is connected to the mounting base via bearings. The rolling friction of the bearings effectively reduces the resistance during the rotation of the stirring shaft 3, extending the service life of the equipment. Meanwhile, the gear set 7 and key connection design in the transmission mechanism 6 ensure stable power transmission, avoiding reduced stirring efficiency due to poor transmission. The guide plate 11 at the top of the housing 9 and the baffle 13 at the bottom further improve the ease of operation. The guide plate 11 ensures that flour enters the stirring area evenly, while the baffle 13 allows the user to easily control the flour discharge process.

[0028] This invention achieves automated stirring through the aforementioned structural design, solving the problems of manual operation, uneven stirring, and lack of flexibility in structural design found in existing stirring devices. The connections and fits between the various components are meticulously designed to ensure the high efficiency and reliability of the equipment in practical applications.

[0029] To enable those skilled in the art to fully understand and implement this utility model, the following supplementary explanation of the specific implementation principle of this utility model is provided in conjunction with a specific application scenario.

[0030] In actual operation, the flour to be mixed is first poured into the shell 9 through the feed inlet 10. At this point, the design of the guide plate 11 plays a crucial role; its inclined setting ensures that the flour can slide evenly along the guide channels into the mixing area inside the shell 9. The distribution of the guide channels on the guide plate 11 is carefully designed to guide the flour into the mixing area at an appropriate flow rate and with uniform distribution under the influence of gravity, thereby avoiding the impact of flour accumulation or uneven distribution on subsequent mixing effects. The core principle of this design lies in utilizing gravity in conjunction with the geometry of the guide channels, reducing human intervention while improving the uniformity of flour entering the mixing area.

[0031] After the motor is started, its output shaft drives the reducer, and the reducer's output transmits power to the transmission rod 8 via gear set 7. The keyways at both ends of the transmission rod 8 are connected to the gears and the stirring shaft 3 via keys, achieving synchronous rotation. This design ensures efficient and stable power transmission. The rectangular cross-section fit between the keyways and keys prevents relative slippage between the transmission rod 8 and the stirring shaft 3, thus guaranteeing the rotational accuracy of the stirring shaft 3. Simultaneously, the two ends of the stirring shaft 3 are connected to the fixed base via bearings. The rolling friction of the bearings significantly reduces the resistance during the rotation of the stirring shaft 3, extending the equipment's service life and reducing energy loss due to friction.

[0032] Driven by the stirring shaft 3, the stirring blade 4 begins to rotate. The scraper blades on its base plate, with their arc-shaped convex surfaces facing the stirring direction, agitate the flour. The grooves on the scraper surface further enhance the stirring effect. The principle behind this is that the grooves can create localized vortices during rotation, increasing the collision frequency between flour particles and thus improving the uniformity of the stirring. Furthermore, the user can adjust the position and angle of the stirring blade 4 according to actual needs. Specifically, after loosening the locking bolt, the sliding sleeve can slide or rotate on the stirring shaft 3. After adjustment, tightening the locking bolt will fix the position of the stirring blade 4. This adjustment mechanism design allows the stirring device to flexibly adapt to the stirring requirements of different sample volumes or viscosities, significantly improving the applicability of the equipment.

[0033] After mixing is complete, the user controls the opening and closing of the baffle 13 by pulling the lever 14, thereby discharging the flour. The baffle 13 is slidably connected to the bottom of the housing 9, and its opening and closing process is smooth and controllable. The design of the lever 14 allows the user to conveniently complete the flour discharge operation without directly contacting the inside of the housing 9. This design not only improves the ease of operation but also avoids the problem of flour residue caused by improper manual operation.

[0034] During the aforementioned operation, the coordination between various components was meticulously designed to ensure the high efficiency and reliability of the equipment. For example, the gear set 7 and key connection design in the transmission mechanism 6 effectively avoid the problem of reduced stirring efficiency due to poor transmission; the guide plate 11 at the top of the housing 9 and the baffle 13 at the bottom optimize the operation process of the equipment from the feeding and discharging stages, respectively. These designs work together to solve the problems of manual operation, uneven stirring, and lack of structural flexibility in existing stirring devices.

[0035] In summary, this utility model, through its rational structural design and close cooperation between components, achieves automated stirring, significantly improving stirring efficiency, uniformity, and the applicability of the equipment. The above description is merely a preferred embodiment of this utility model and is not intended to limit its scope. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within its protection scope.

Claims

1. An automatic stirring device for a farinograph, characterized by comprising: The device includes a stirring drive assembly (1) and a stirring execution assembly (2). The stirring drive assembly (1) is connected to the stirring execution assembly (2) via a transmission mechanism (6). The stirring execution assembly (2) includes a stirring shaft (3) and stirring blades (4). The stirring shaft (3) has mounting seats at both ends. The mounting seats are used to fix the stirring shaft (3) and enable it to rotate around its own axis. The stirring blades (4) are distributed along the axial direction of the stirring shaft (3). The stirring blades (4) are connected to the stirring shaft (3) via an adjustment mechanism (5). The adjustment mechanism (5) is used to adjust the angle and position of the stirring blades (4).

2. The automatic stirring device of a flour falling number tester according to claim 1, characterized in that, The stirring drive assembly (1) includes a motor and a reducer. The output shaft of the motor is connected to the input end of the reducer. The output end of the reducer is connected to one end of the stirring shaft (3) through a transmission mechanism (6). The transmission mechanism (6) includes a gear set (7) and a transmission rod (8). The gear set (7) consists of multiple meshing gears. One gear is fixed at the output end of the reducer, and another gear is fixed at one end of the transmission rod (8). The other end of the transmission rod (8) is connected to the stirring shaft (3).

3. The automatic stirring device of a flour falling number tester according to claim 1, characterized in that, The adjustment mechanism (5) includes a sliding sleeve and a locking bolt. The sliding sleeve is sleeved on the outside of the stirring shaft (3). The outside of the sliding sleeve is provided with a mounting hole. The stirring blade (4) is connected to the sliding sleeve through the mounting hole. The locking bolt passes through the outer wall of the sliding sleeve.

4. The automatic stirring device of a flour falling number tester according to claim 1, characterized in that, The stirring blade (4) includes a base plate and a scraper. The inner side of the base plate is provided with a connecting hole, which is aligned with the mounting hole of the sliding sleeve and connected by bolts. The scraper is fixed on the outer side of the base plate and is arc-shaped with the convex surface of the arc facing the stirring direction. The surface of the scraper is provided with several grooves, which are distributed along the length of the scraper.

5. The automatic stirring device of a flour falling number tester according to claim 1, characterized in that, The mounting base includes a fixed base and a bearing. The fixed base is fixed on the inner wall of the housing (9). The bearing is embedded inside the fixed base. The two ends of the stirring shaft (3) are respectively inserted into the inner rings of the two bearings. The fixed base is provided with a positioning hole on the outside. The positioning hole is used to fix the fixed base to the housing (9) with bolts.

6. The automatic stirring device of a flour falling number tester according to claim 2, characterized in that, The transmission rod (8) has keyways at both ends. The keyways are connected to the stirring shaft (3) and the gear by a key. The cross-sectional shape of the key is rectangular. The width of the keyway matches the width of the key. The length of the key is less than the depth of the keyway.

7. The automatic stirring device of a flour falling number tester according to claim 5, characterized in that, The top of the shell (9) is provided with a feed inlet (10), and the inner side of the feed inlet (10) is provided with a guide plate (11). The guide plate (11) is inclined, with one end connected to the inner wall of the feed inlet (10) and the other end extending to the top of the stirring shaft (3). The surface of the guide plate (11) is provided with a number of guide grooves, which are distributed along the inclined direction of the guide plate (11).

8. The automatic stirring device of a flour falling number tester according to claim 5, characterized in that, The bottom of the housing (9) is provided with a discharge port (12), and the inner side of the discharge port (12) is provided with a baffle (13). The baffle (13) is slidably connected to the bottom of the housing (9). The outer side of the baffle (13) is provided with a pull rod (14). One end of the pull rod (14) is fixedly connected to the baffle (13), and the other end extends to the outside of the housing (9).

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