A flour testing sieve

Abstract

The utility model discloses a flour test powder sieve, including bottom plate, limit board and circular test powder sieve, be provided with limit board on the bottom plate, the inboard of limit board is provided with circular test powder sieve, the first servo motor is fixed with eccentric wheel on the output shaft of first servo motor one end rear side of top surface of bottom plate, the side frame fixed mounting is in limit board outer wall one side, the support wheel is rotatably installed on the bottom surface of limit board outside, the support wheel bottom end is combined with the track groove bottom surface, the stable cylinder is rotatably installed in limit board inboard wall top, and the stable cylinder one end is combined with the sidewall bottom of circular test powder sieve. This flour test powder sieve adopts novel structure design, and two groups of driving mechanisms are increased, makes the powder sieve can carry out horizontal and vertical small amplitude vibration in the rotation process simultaneously, improves the screening efficiency, and greatly shortens the screening time, realizes the quick efficient grading test powder to the relatively large amount of flour.

Description

Technical Field

[0001] The utility model relates to the technical field of flour production, and particularly relates to a flour inspection sieve. Background Technique

[0002] The circular inspection sieve is a professional equipment used in industries such as grain, flour processing, and food inspection to measure the fineness (or processing precision) of powdery materials (such as flour, starch, rice flour, etc.). Its core working principle can be summarized as: driving a standard circular sieve body to perform a uniform rotary motion in the horizontal plane by a motor, using the aperture of the sieve mesh to classify the powder sample, and calculating the percentage of the fineness of the sample by weighing the residue on the sieve or the material passing through the sieve.

[0003] The existing circular inspection sieve can perform a uniform rotary motion, but its screening efficiency is low, the overall time consumption is long, and it cannot quickly and efficiently classify and inspect a large amount of flour. In view of the above problems, an innovative design is carried out on the basis of the original flour inspection sieve. Content of the Utility Model

[0004] The purpose of the utility model is to provide a flour inspection sieve to solve at least one of the technical problems mentioned in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a flour inspection sieve, including a bottom plate, a limiting plate, and a circular inspection sieve. A limiting plate is arranged on the bottom plate, and a circular inspection sieve is arranged inside the limiting plate. A first servo motor is fixed at the rear side of one end of the top surface of the bottom plate, and an eccentric wheel is fixed on the output shaft of the first servo motor. The end of the eccentric wheel is in contact with the inner wall of the side frame;

[0006] The side frame is fixedly installed on one side of the outer wall of the limiting plate. A supporting wheel is rotatably installed on the bottom surface of the outer side of the limiting plate, and the bottom end of the supporting wheel is in contact with the bottom surface of the track groove. The track groove is opened in the middle of the top surface of the bottom plate, and a reset spring telescopic rod is fixed on the other side of the outer wall of the limiting plate;

[0007] A stable roller is rotatably installed at the top of the inner side wall of the limiting plate. One end of the stable roller is in contact with the bottom of the side wall of the circular inspection sieve. A supporting spring telescopic rod is fixed on the bottom surface of the inner side of the limiting plate, and the top end of the supporting spring telescopic rod is fixedly connected to the bottom end of the circular inspection sieve. A second servo motor is fixed at the rear side of the bottom surface of the inner side of the limiting plate, and an extrusion cylinder is fixed on the output shaft of the second servo motor. The top of the extrusion cylinder is in contact with the bottom end of the resistance reduction roller. The extrusion cylinder is rotatably installed on the bottom surface of the circular inspection sieve.

[0008] Preferably, the front view shape of the limiting plate is "U"-shaped, and the top view width of the limiting plate is greater than the top view width of the bottom of the circular inspection sieve.

[0009] Preferably, the eccentric wheel and the side frame are symmetrically distributed about the center of the limiting plate, the diameter of the eccentric wheel is equal to the inner width of the side frame, and the two ends of the eccentric wheel are respectively attached to the two ends of the inner wall of the side frame.

[0010] Preferably, the support wheels are symmetrically distributed about the center of the limiting plate, the center of the support wheels and the center of the track groove are on the same vertical plane, and the track groove is evenly distributed.

[0011] Preferably, the end of the return spring telescopic rod is connected and fixed to one side of the side plate, the side plate is fixedly installed on the other end of the top surface of the base plate, and the return spring telescopic rods are evenly distributed.

[0012] Preferably, the stabilizing rollers are evenly spaced in the vertical direction, and the stabilizing rollers are symmetrically distributed about the center of the circular powder sieve.

[0013] Preferably, the supporting spring telescopic rods are distributed in a straight line at equal intervals in the front-to-back direction, and the supporting spring telescopic rods are symmetrically distributed about the center of the circular powder sieve.

[0014] Preferably, the front view cross-sectional shape of the extrusion cylinder is teardrop-shaped, the side view length of the extrusion cylinder is greater than half of the bottom side view length of the circular powder sieve, and the extrusion cylinders are symmetrically distributed about the center of the circular powder sieve.

[0015] Preferably, the side view length of the drag-reducing roller is greater than the side view length of the extrusion cylinder, and the drag-reducing roller is densely distributed at equal intervals.

[0016] The flour testing sieve of this invention has the following beneficial effects:

[0017] The new structural design adds two sets of drive mechanisms, enabling the flour sieve to simultaneously vibrate horizontally and vertically during rotation, which improves sieving efficiency and significantly shortens sieving time, achieving rapid and efficient grading and testing of large quantities of flour.

[0018] 1. The eccentric wheel is driven to rotate stably by the first servo motor, which continuously squeezes the side frame, so that the limiting plate and the circular powder sieve can move horizontally back and forth along the track groove with the support wheel. With the help of the reset spring telescopic rod and the side plate, the circular powder sieve can achieve stable small-amplitude horizontal vibration of the whole.

[0019] 2. The symmetrically distributed second servo motors drive the symmetrically distributed extrusion cylinders to rotate at the same speed but in opposite directions, intermittently extruding the drag-reducing rollers upwards. Together with the stabilizing rollers and the supporting spring telescopic rods, the circular powder sieve achieves stable small-amplitude vertical vibration. Combined with the rotational screening of the circular powder sieve itself, the screening efficiency is greatly improved. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a front view structural diagram of the present invention;

[0022] Figure 2 This is a front view cross-sectional structural diagram of the base plate and the limiting plate of this utility model;

[0023] Figure 3 This is a side sectional view of the base plate and the limiting plate of this utility model.

[0024] Figure 4 This is a top view of the support wheel and track groove of this utility model;

[0025] Figure 5 This is a top view schematic diagram of the supporting spring telescopic rod and the extrusion cylinder of this utility model;

[0026] Figure 6 This is a top view sectional diagram of the side frame and stabilizing roller of this utility model.

[0027] [Explanation of Key Component Symbols]

[0028] 1. Base plate; 2. Limiting plate; 3. Circular powder sieve; 4. First servo motor; 5. Eccentric wheel; 6. Side frame; 7. Support wheel; 8. Track groove; 9. Reset spring telescopic rod; 10. Side plate; 11. Stabilizing roller; 12. Support spring telescopic rod; 13. Second servo motor; 14. Extrusion cylinder; 15. Resistance reducing roller. Detailed Implementation

[0029] The flour testing sieve of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0030] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0031] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0032] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products, or devices.

[0033] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0034] Please see Figure 1-6 This utility model provides a technical solution: a flour testing sieve, including a base plate 1, a limiting plate 2, a circular testing sieve 3, a first servo motor 4, an eccentric wheel 5, a side frame 6, a support wheel 7, a track groove 8, a reset spring telescopic rod 9, a side plate 10, a stabilizing roller 11, a support spring telescopic rod 12, a second servo motor 13, an extrusion cylinder 14, and a resistance-reducing roller 15. The limiting plate 2 is provided on the base plate 1, and the circular testing sieve 3 is provided inside the limiting plate 2. The first servo motor 4 is fixed to the rear side of one end of the top surface of the base plate 1. The eccentric wheel 5 is fixed on the output shaft of the first servo motor 4, and the end of the eccentric wheel 5 is in contact with the inner wall of the side frame 6.

[0035] The side frame 6 is fixedly installed on one side of the outer wall of the limit plate 2. A support wheel 7 is rotatably installed on the outer bottom surface of the limit plate 2. The bottom end of the support wheel 7 is in contact with the bottom surface of the track groove 8. The track groove 8 is opened in the middle of the top surface of the bottom plate 1. On the other side of the outer wall of the limit plate 2, a reset spring telescopic rod 9 is fixed;

[0036] At the top of the inner wall of the limit plate 2, a stable roller 11 is rotatably installed. One end of the stable roller 11 is in contact with the bottom of the side wall of the circular flour sieve 3. On the inner bottom surface of the limit plate 2, a support spring telescopic rod 12 is fixed. The top end of the support spring telescopic rod 12 is connected and fixed to the bottom end of the circular flour sieve 3. At the rear of the inner bottom surface of the limit plate 2, a second servo motor 13 is fixed. On the output shaft of the second servo motor 13, an extrusion cylinder 14 is fixed. The top of the extrusion cylinder 14 is in contact with the bottom end of the resistance reduction roller 15. The extrusion cylinder 14 is rotatably installed on the bottom surface of the circular flour sieve 3.

[0037] In this example, the front view shape of the limit plate 2 is "凵"-shaped, and the top view width of the limit plate 2 is greater than the top view width of the bottom of the circular flour sieve 3. The above structural design can provide a stable installation foundation for the circular flour sieve 3 and limit the bottom of the circular flour sieve 3.

[0038] In this example, both the eccentric wheel 5 and the side frame 6 are symmetrically distributed about the center of the limit plate 2. The diameter of the eccentric wheel 5 is equal to the inner width of the side frame 6. Both ends of the eccentric wheel 5 are in contact with both ends of the inner wall of the side frame 6. The above structural design enables the eccentric wheel 5 to always contact the inner wall of the side frame 6 and stably push the side frame 6 and the connected mechanism to perform horizontal reciprocating movement.

[0039] In this example, the support wheels 7 are symmetrically distributed about the center of the limit plate 2. The center of the support wheel 7 and the center of the track groove 8 are in the same vertical plane. The track grooves 8 are equally spaced. The above structural design enables the limit plate 2 to smoothly linearly displace along the track groove 8 with the support wheels 7.

[0040] In this example, the end of the reset spring telescopic rod 9 is connected and fixed to one side of the side plate 10. The side plate 10 is fixedly installed at the other end of the top surface of the bottom plate 1. The reset spring telescopic rods 9 are equally spaced, and the above structural design can utilize the elasticity of the reset spring telescopic rods 9 to further improve the stability of the limit plate 2 during horizontal movement.

[0041] In this example, the stable rollers 11 are equally spaced in the vertical direction and are symmetrically distributed about the center of the circular flour sieve 3 left and right. The above structural design can greatly reduce the resistance when the bottom of the circular flour sieve 3 vertically moves inside the limit plate 2 and improve the stability of the circular flour sieve 3.

[0042] In this example, the support spring telescopic rods 12 are distributed in a straight line at equal intervals in the front-to-back direction. The support spring telescopic rods 12 are symmetrically distributed about the center of the circular powder sieve 3. The above structural design enables the support spring telescopic rods 12 to provide stable support and limit the circular powder sieve 3.

[0043] In this example, the front view of the extrusion cylinder 14 is teardrop-shaped. The side view length of the extrusion cylinder 14 is greater than half of the bottom side view length of the circular powder sieve 3. The extrusion cylinder 14 is symmetrically distributed about the center of the circular powder sieve 3. The above structural design enables the extrusion cylinder 14 to use its structural characteristics to intermittently extrude the resistance-reducing roller 15 upwards, thereby pushing the circular powder sieve 3 to move vertically in a stable manner.

[0044] In this example, the side view length of the drag-reducing roller 15 is greater than that of the extrusion cylinder 14. The drag-reducing rollers 15 are densely distributed at equal intervals. The above structural design can reduce the resistance when the extrusion cylinder 14 rotates, ensuring that the extrusion cylinder 14 can smoothly and intermittently extrude and push the circular powder sieve 3.

[0045] Working principle: During operation, following the normal operating procedure of the existing circular flour sieve 3, flour is added to the top sieve, the top cover is closed, the locking mechanism is installed, and the circular flour sieve 3 is started to rotate and sieve.

[0046] Then, the first servo motor 4 is started. The first servo motor 4 stably drives the eccentric wheel 5 to rotate unidirectionally at a suitable speed through the output shaft. The eccentric wheel 5 utilizes its biased installation characteristic to first... Figure 2 The side frame 6 is pushed to the right, and then pushed to the left to reset. The side frame 6, along with the limiting plate 2, the circular powder sieve 3 and the support wheel 7, moves horizontally to the right along the track groove 8 to compress the reset spring telescopic rod 9, and then moves horizontally to the left to reset, thus performing stable small-amplitude horizontal vibration.

[0047] Simultaneously, the symmetrically distributed second servo motor 13 is activated. Using existing control technology, the symmetrically distributed second servo motor 13 drives the symmetrically distributed extrusion cylinders 14 to rotate at the same speed but in opposite directions. Since the extrusion cylinders 14 are symmetrically distributed, during rotation, the protruding part of the extrusion cylinder 14 will synchronously contact the bottom end of the drag-reducing roller 15, squeezing and pushing the drag-reducing roller 15 and the circular powder sieve 3 to move vertically upward along the inner side of the limiting plate 2, and stretching the support spring telescopic rod 12. Subsequently, the protruding part of the extrusion cylinder 14 synchronously separates from the bottom end of the drag-reducing roller 15. Under the action of gravity and the elastic force of the support spring telescopic rod 12, the circular powder sieve 3 moves vertically downward along the inner side of the limiting plate 2 to reset. This process is repeated, and the circular powder sieve 3 performs stable small-amplitude vertical vibration along the inner side of the limiting plate 2. Combined with the rotation of the circular powder sieve 3 itself, efficient sieving is achieved. After sieving, the first servo motor 4 and the second servo motor 13 are stopped first, then the drive mechanism of the circular powder sieve 3 is turned off, the locking mechanism is released, and the powder sieve can be removed.

[0048] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the scope of protection of the present utility model.

Claims

1. A flour testing sieve, characterized in that, Including: A bottom plate (1), a limit plate (2), and a circular flour sifter (3). A limit plate (2) is provided on the bottom plate (1), and a circular flour sifter (3) is provided inside the limit plate (2). At the rear side of one end of the top surface of the bottom plate (1), a first servo motor (4) is fixed. A eccentric wheel (5) is fixed on the output shaft of the first servo motor (4), and the end of the eccentric wheel (5) is in contact with the inner wall of the side frame (6). The side frame (6) is fixedly installed on one side of the outer wall of the limit plate (2). A support wheel (7) is rotatably installed on the outer bottom surface of the limit plate (2), and the bottom end of the support wheel (7) is in contact with the bottom surface of the track groove (8). The track groove (8) is opened in the middle of the top surface of the bottom plate (1). On the other side of the outer wall of the limit plate (2), a reset spring telescopic rod (9) is fixed. On the top of the inner side wall of the limit plate (2), a stable roller (11) is rotatably installed. One end of the stable roller (11) is in contact with the bottom of the side wall of the circular flour sifter (3). On the inner bottom surface of the limit plate (2), a support spring telescopic rod (12) is fixed, and the top end of the support spring telescopic rod (12) is fixedly connected to the bottom end of the circular flour sifter (3). At the rear side of the inner bottom surface of the limit plate (2), a second servo motor (13) is fixed. A extrusion cylinder (14) is fixed on the output shaft of the second servo motor (13), and the top of the extrusion cylinder (14) is in contact with the bottom end of the resistance reduction roller (15). The extrusion cylinder (14) is rotatably installed on the bottom surface of the circular flour sifter (3).

2. The flour testing sieve according to claim 1, characterized in that: The front view shape of the limit plate (2) is "U" shaped, and the top view width of the limit plate (2) is greater than the top view width of the bottom of the circular flour sifter (3).

3. The flour testing sieve according to claim 1, characterized in that: The eccentric wheel (5) and the side frame (6) are both symmetrically distributed about the center of the limit plate (2). The diameter of the eccentric wheel (5) is equal to the inner width of the side frame (6), and both ends of the eccentric wheel (5) are in contact with both ends of the inner wall of the side frame (6).

4. A flour testing sieve according to claim 1, characterized in that: The support wheels (7) are symmetrically distributed about the center of the limit plate (2). The center of the support wheel (7) and the center of the track groove (8) are on the same vertical plane, and the track grooves (8) are equally spaced.

5. A flour testing sieve according to claim 1, characterized in that: The end of the reset spring telescopic rod (9) is fixedly connected to one side of the side plate (10). The side plate (10) is fixedly installed at the other end of the top surface of the bottom plate (1), and the reset spring telescopic rods (9) are equally spaced.

6. A flour testing sieve according to claim 1, characterized in that: The stable rollers (11) are equally spaced in the vertical direction and are symmetrically distributed about the center of the circular flour sifter (3) left and right.

7. A flour testing sieve according to claim 1, characterized in that: The support spring telescopic rods (12) are linearly equally spaced in the front and rear directions and are symmetrically distributed about the center of the circular flour sifter (3) left and right.

8. A flour testing sieve according to claim 1, characterized in that: The front view cross-sectional shape of the extrusion cylinder (14) is water droplet shaped. The side view length of the extrusion cylinder (14) is greater than half of the side view length of the bottom of the circular flour sifter (3). The extrusion cylinder (14) is symmetrically distributed about the center of the circular flour sifter (3) left and right.

9. A flour testing sieve according to claim 1, characterized in that: The side view length of the resistance reduction roller (15) is greater than the side view length of the extrusion cylinder (14), and the resistance reduction rollers (15) are densely equally spaced.

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