Natto powder preparation device with vibrating screen for impurity removal

Abstract

The utility model relates to natto powder manufacturing technical field, especially a kind of natto powder is made with vibrating screen separation and impurity removal equipment.The utility model provides a kind of natto powder is made with vibrating screen separation and impurity removal equipment, including support frame, support rod, outer frame, blanking frame and vibrating motor etc., four support rods are fixedly connected with the circumferential direction in the top of support frame, slidingly connected with outer frame between support rod, outer frame top is connected with blanking frame, and vibrating motor is installed in blanking frame right side.The utility model drives scraper bar one and scraper bar two to continuously scrape the inner wall of blanking frame and screen frame by motor one, in combination with the high-frequency micro-amplitude vibration of vibrating motor and the up-down reciprocating vibration brought by cam mechanism, effectively prevent the agglomeration and adhesion of natto powder in screening process, reach the effect of significantly reducing screen mesh blockage, improve screening efficiency.

Description

Technical Field

[0001] This utility model relates to the field of natto powder production technology, and in particular to a vibrating sieve for removing impurities in natto powder production. Background Technology

[0002] In the industrial production of natto powder, raw natto or semi-finished powder often contains natto shell fragments, fiber bundles, clumps, and other foreign impurities introduced during processing. The presence of these impurities directly affects the purity, taste, and quality consistency of the final product. Traditional impurity removal methods mostly rely on manual sieving or preliminary filtration using fixed mesh screens, which are inefficient and difficult to control in terms of sieving precision. This is especially true for natto powder with low moisture content and a certain degree of adhesion, which can easily lead to screen clogging and a sharp drop in sieving efficiency. At the same time, manual operation carries a high risk of secondary contamination and is labor-intensive. The large size of the screen makes it difficult to meet the needs of continuous and large-scale production. Although mechanical vibrating screen technology has been applied in fields such as grain processing and chemical raw materials, it still faces significant adaptability challenges when directly applied to specific materials such as natto powder. For example, the amplitude and frequency parameters of conventional vibrating screens are designed for general materials. However, due to the unique viscosity and easy agglomeration characteristics of natto powder, the material often does not flow smoothly on the screen surface, and the screen holes are frequently stuck and blocked. The effective screening area is rapidly reduced, which not only reduces production efficiency but may also lead to incomplete removal of impurities and affect product quality.

[0003] Therefore, there is an urgent need for a vibrating sieve for removing impurities in natto powder production. Utility Model Content

[0004] In order to overcome the shortcomings of existing vibrating screening equipment when used for impurity removal in natto powder production, such as severe screen clogging and low screening efficiency due to the sticky and easily agglomerated characteristics of the material, this utility model provides a vibrating screening equipment for impurity removal in natto powder production.

[0005] The technical solution is as follows: A vibrating sieve for removing impurities in natto powder production, comprising a support frame, support rods, an outer frame, a feeding frame, a vibrating motor, a feed pipe, a first motor, a first scraper, a sieve frame, a second scraper, a second motor, a cam, a slide bar, a return spring, and a discharge frame. Four support rods are fixedly connected circumferentially to the top of the support frame, and the outer frame is slidably connected between the support rods. A feeding frame is fixedly connected to the top of the outer frame. A vibrating motor is fixedly installed on the right side of the feeding frame, and a feed pipe is fixedly connected to the top left side of the feeding frame. A first motor is fixedly installed at the center of the top of the feeding frame, and a scraper is fixedly connected to the output shaft of the first motor. Scraper 1 is located inside the feeding frame, with its lower part in contact with the bottom of the feeding frame and extending beyond the bottom of the feeding frame. A screen frame is slidably connected to the upper part of the outer frame. Scraper 2 is fixedly connected to the bottom of scraper 1, with its bottom in contact with the bottom of the screen frame. Motor 2 is fixedly installed on the rear side of the outer frame. A cam is fixedly connected to the output shaft of motor 1. The cam is located inside the outer frame, with its protrusion in contact with the rear side of the screen frame. A discharge frame is fixedly connected to the lower part of the outer frame. Five sliding rods and five return springs are circumferentially connected between the screen frame and the discharge frame, with the return springs respectively sleeved on the corresponding sliding rods.

[0006] Furthermore, it also includes connecting rods, with three connecting rods slidably fitted between the feeding frame and the outer frame along the circumference.

[0007] Furthermore, it also includes a screw cap, with the screw cap threaded into the feed pipe.

[0008] Furthermore, it also includes a protective shell, which is fixedly connected to the center of the top of the feeding frame, and the motor is located inside the protective shell.

[0009] Furthermore, it also includes a discharge pipe and a vacuum cleaner. A waste discharge port is provided on the left side of the screen frame, and a discharge pipe is fixedly connected to this waste discharge port, and a vacuum cleaner is connected to the discharge pipe.

[0010] Furthermore, it also includes spring shock absorbers. Four spring shock absorbers are provided circumferentially between the bottom of the outer frame and the top of the support frame. The telescopic ends of the spring shock absorbers are fixedly connected to the bottom of the outer frame, and the fixed ends of the spring shock absorbers are fixedly connected to the top of the support frame. The four spring shock absorbers and the four support rods are staggered.

[0011] Compared with the prior art, the present invention has the following advantages: 1. The present invention uses a motor to drive scraper one and scraper two to continuously scrape the inner wall of the feeding frame and the screen frame. Combined with the high-frequency micro-amplitude vibration of the vibrating motor and the up-and-down reciprocating vibration brought by the cam mechanism, it effectively prevents the natto powder from clumping and adhering during the screening process, thereby significantly reducing screen blockage and improving screening efficiency.

[0012] 2. This utility model guides the screen frame to vibrate smoothly up and down by cooperating with the return spring and the slide rod. At the same time, a spring shock absorber is provided to buffer the vibration transmitted from the outer frame to the support frame, ensuring stable operation of the equipment, reducing the impact of vibration on the overall structure, and extending the service life of the device.

[0013] 3. This utility model achieves sealed feeding by setting a spiral cover on the feed pipe. After screening, the impurities and dust in the screen frame are efficiently removed by a vacuum cleaner through the discharge pipe, which improves the operating environment, prevents dust from escaping, and enhances the convenience and thoroughness of impurity cleaning. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a partial sectional view of the components of this utility model, including the feeding frame, vibrating motor, and screw cap.

[0016] Figure 3 This is a partial sectional view of the scraper rod, return spring, and slide rod of this utility model.

[0017] Figure 4 This is a three-dimensional structural diagram of the components of this utility model, including the motor, discharge pipe, and screen frame.

[0018] Reference numerals: 1. Support frame, 11. Support rod, 12. Outer frame, 2. Discharge frame, 20. Vibration motor, 201. Connecting rod, 21. Feed pipe, 22. Screw cap, 3. Motor one, 301. Protective shell, 31. Scraper one, 4. Screen frame, 41. Scraper two, 42. Motor two, 43. Cam, 44. Slide rod, 45. Spring, 5. Discharge pipe, 51. Vacuum cleaner, 6. Discharge frame, 7. Spring shock absorber. Detailed Implementation

[0019] Example: A vibrating sieve for removing impurities in natto powder production, such as... Figures 1-4As shown, the device includes a support frame 1, support rods 11, an outer frame 12, a feeding frame 2, a vibrating motor 20, a feed pipe 21, a first motor 3, a first scraper 31, a screen frame 4, a second scraper 41, a second motor 42, a cam 43, a slide rod 44, a return spring 45, and a discharge frame 6. Four support rods 11 are fixedly connected circumferentially to the top of the support frame 1. The outer frame 12 is slidably connected between the support rods 11. The feeding frame 2 is fixedly connected to the top of the outer frame 12. A vibrating motor 20 is fixedly installed on the right side of the feeding frame 2. A feed pipe 21 is fixedly connected to the top left side of the feeding frame 2. A first motor 3 is fixedly installed at the center of the top of the feeding frame 2. The output shaft of the first motor 3 faces downwards, and the output shaft of the first motor 3 is fixedly connected to a first scraper 31, which is located inside the feeding frame 2. Furthermore, the lower part of scraper 31 contacts the bottom of the inner part of the feeding frame 2, and scraper 31 extends out of the bottom of the feeding frame 2. The upper part of the inner part of the outer frame 12 is slidably connected to the screen frame 4. The bottom of scraper 31 is fixedly connected to scraper 41, and the bottom of scraper 41 contacts the bottom of the inner part of the screen frame 4. The rear side of the outer frame 12 is fixedly installed with motor 42. The output shaft of motor 3 faces forward, and the output shaft of motor 3 is fixedly connected to cam 43. Cam 43 is located inside the outer frame 12, and the protrusion of cam 43 contacts the rear side of screen frame 4. The lower part of the inner part of the outer frame 12 is fixedly connected to the discharge frame 6. Five sliding rods 44 and five return springs 45 are connected circumferentially between screen frame 4 and discharge frame 6. The return springs 45 are respectively sleeved on the corresponding sliding rods 44, forming an elastic vibration support for the screen frame.

[0020] like Figures 1-2 As shown, it also includes connecting rods 201. Three connecting rods 201 are slidably sleeved between the feeding frame 2 and the outer frame 12 in the circumferential direction to enhance stability.

[0021] like Figure 2 As shown, it also includes a screw cap 22, and the feed pipe 21 is internally threaded with a screw cap 22 for sealing the feed pipe 21.

[0022] like Figures 1-2 As shown, it also includes a protective shell 301. The protective shell 301 is fixedly connected to the top center of the feeding frame 2. The motor 3 is located inside the protective shell 301 to protect the motor 3.

[0023] like Figure 4 As shown, it also includes a discharge pipe 5 and a vacuum cleaner 51. The left side of the screen frame 4 is provided with a discharge port, and the discharge pipe 5 is fixedly connected to the discharge port. The vacuum cleaner 51 is connected to the discharge pipe 5 for cleaning the impurities trapped in the screen frame 4.

[0024] like Figure 1As shown, it also includes spring dampers 7. Four spring dampers 7 are arranged circumferentially between the bottom of the outer frame 12 and the top of the support frame 1. The telescopic ends of the spring dampers 7 are fixedly connected to the bottom of the outer frame 12, and the fixed ends of the spring dampers 7 are fixedly connected to the top of the support frame 1. The four spring dampers 7 and the four support rods 11 are staggered to buffer vibration.

[0025] When the operator uses this device to sieve and remove impurities from natto powder, first place the container under the discharge frame 6, then rotate and remove the threaded cap, and feed the natto powder to be sieved into the discharge frame 2 through the feed pipe 21. Then start the vibration motor 20 to make the outer frame 12 and the discharge frame 2 vibrate at high frequency and micro amplitude, so as to promote the initial dispersion and falling of the material. Next, start motor 3 and motor 42 in sequence. Motor 3 drives scraper 31 to rotate in the discharge frame 2 to scrape the inner wall to avoid the adhesion and accumulation of sticky powder. At the same time, scraper 31 drives scraper 41 to rotate synchronously in the sieve frame 4 to continuously scrape the bottom of the sieve frame 4 to prevent the natto powder from clumping or sticking to the sieve frame. Inside the screen frame 4, motor 42 drives cam 43 to periodically push the screen frame 4 downwards. Combined with the resetting action of the return spring 45, the screen frame 4 vibrates up and down. During this process, qualified powder passes through the screen frame 4 and falls from the discharge frame 6 into the pre-prepared container, while impurities are trapped in the screen frame 4. After screening, the vibration motor 20, motor 3, and motor 42 are turned off in sequence, and the vacuum cleaner 51 is turned on to absorb the impurities and residual dust trapped in the screen frame 4. After cleaning, the vacuum cleaner 51 is turned off. In addition, the entire equipment uses spring shock absorber 7 to buffer the transmission of vibration to the support frame 1, thereby ensuring the smoothness and stability of operation.

Claims

1. A vibrating sieve for removing impurities in natto powder production, characterized in that: The system includes a support frame (1), support rods (11), outer frame (12), feeding frame (2), vibrating motor (20), feed pipe (21), motor one (3), scraper one (31), screen frame (4), scraper two (41), motor two (42), cam (43), slide rod (44), return spring (45), and discharge frame (6). The top of the support frame (1) is connected to four support rods (11) along the circumferential direction. The outer frame (12) is slidably connected between the support rods (11). The top of the outer frame (12) is connected to the feeding frame (2). The vibrating motor (20) is installed on the right side of the feeding frame (2). The feed pipe (21) is connected to the left side of the top of the feeding frame (2). Motor one (3) is installed at the center of the top of the feeding frame (2). The output shaft of motor one (3) is connected to scraper one (31). Scraper one (31) is located at the bottom. Inside the material frame (2), the lower part of scraper 1 (31) is in contact with the bottom of the material frame (2), and scraper 1 (31) passes through the bottom of the material frame (2). The upper part of the outer frame (12) is slidably connected to the screen frame (4). The bottom of scraper 1 (31) is connected to scraper 2 (41). The bottom of scraper 2 (41) is in contact with the bottom of the screen frame (4). Motor 2 (42) is installed on the rear side of the outer frame (12). The output shaft of motor 1 (3) is connected to cam (43). Cam (43) is located inside the outer frame (12), and the protrusion of cam (43) is in contact with the rear side of screen frame (4). The lower part of the outer frame (12) is connected to discharge frame (6). Five slide rods (44) and five return springs (45) are connected circumferentially between screen frame (4) and discharge frame (6). The return springs (45) are respectively sleeved on the corresponding slide rods (44).

2. The vibrating sieve for removing impurities in natto powder production as described in claim 1, characterized in that: It also includes connecting rods (201), and three connecting rods (201) are slidably sleeved between the feeding frame (2) and the outer frame (12) in the circumferential direction.

3. The vibrating sieve for removing impurities in natto powder production as described in claim 2, characterized in that: It also includes a screw cap (22), and the feed pipe (21) is internally threaded with a screw cap (22).

4. The vibrating sieve for removing impurities in natto powder production as described in claim 3, characterized in that: It also includes a protective shell (301), the top center of the feeding frame (2) is connected to the protective shell (301), and the motor (3) is located inside the protective shell (301).

5. The vibrating sieve for removing impurities in natto powder production as described in claim 4, characterized in that: It also includes a discharge pipe (5) and a vacuum cleaner (51). The screen frame (4) has a waste discharge port on the left side, and the discharge pipe (5) is connected to the waste discharge port, and the vacuum cleaner (51) is connected to the discharge pipe (5).

6. The vibrating sieve for removing impurities in natto powder production as described in claim 5, characterized in that: It also includes spring shock absorbers (7). Four spring shock absorbers (7) are provided circumferentially between the bottom of the outer frame (12) and the top of the support frame (1). The telescopic ends of the spring shock absorbers (7) are fixedly connected to the bottom of the outer frame (12), and the fixed ends of the spring shock absorbers (7) are fixedly connected to the top of the support frame (1). The four spring shock absorbers (7) and the four support rods (11) are staggered.

Images