A fine powder screening device

Abstract

The utility model relates to screening device technical field discloses a kind of fine powder screening devices, including base, and base is equipped with mounting seat, and mounting seat is equipped with collection frame, and collection frame is equipped with sieve frame;Sieve frame is equipped with sieve screen in the shape of circular table, and sieve frame is equipped with top cover, and the side wall of top cover is equipped with feeding hopper;Top cover is equipped with scattering subassembly inside, and scattering subassembly includes rotatable rotating rod, and rotating rod is equipped with limit slot along its axial direction, and rotating rod is equipped with mounting ring, and mounting ring is equipped with limit block that enters limit slot, and mounting ring is also equipped with scattering plate;Rotating rod is equipped with lifting assembly;The side wall of sieve frame is equipped with discharge pipe, and discharge pipe is equipped with sealing element inside.The setting of scattering subassembly makes rotating rod rotate, can drive limit block and mounting ring to drive scattering plate to rotate by limit slot, so that scattering plate rotation can scatter into top cover inside konjak powder, so that konjak powder can be more dispersed and fall on sieve screen.

Description

Technical Field

[0001] This utility model relates to the field of screening device technology, and more specifically, to a fine powder screening device. Background Technology

[0002] Currently, the main process in konjac processing involves crushing dried konjac flakes to obtain konjac flour. This flour contains impurities such as tubers and outer skin. To remove these impurities and obtain refined konjac flour, a screening device is typically used. The screens in these devices separate the refined flour from the impurities. However, in practice, existing screening devices feed the konjac flour through a hopper, resulting in a concentrated accumulation of flour on the screen. This leads to a longer screening time, which is not ideal for practical use. Summary of the Invention

[0003] The purpose of this invention is to provide a fine powder screening device to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A fine powder screening device includes a base, a vibrating mounting seat on the base, a collection frame on the mounting seat, and a screen frame on the collection frame. A frustum-shaped screen is installed inside the screen frame, and a top cover is provided on the screen frame. A feeding hopper for adding fine powder into the screen frame is located on the side wall of the top cover. A dispersing component is installed inside the top cover to disperse the fine powder entering the top cover. The dispersing component includes a rotatable rotating rod with a limiting groove along its axial direction. A mounting ring is fitted around the rotating rod, and a limiting block extending into the limiting groove is provided on the mounting ring. A dispersing plate is also provided on the mounting ring. A lifting component is provided on the rotating rod to drive the dispersing plate downwards to clean impurities on the screen. A discharge pipe is provided on the side wall of the screen frame, and a seal for controlling the opening and closing of the discharge pipe is provided inside the discharge pipe.

[0006] Furthermore, the lifting assembly includes a threaded cylinder, which is threadedly mounted on the top cover and sleeved around the rotating rod. The threaded cylinder has openings at both ends, and a fixing ring is provided at the lower opening of the threaded cylinder. A rotatable rotating cylinder is provided on the upper side wall of the mounting ring, and the upper end of the rotating cylinder extends into the threaded cylinder. The extended end of the rotating cylinder has an abutment ring that abuts against the fixing ring. The rotation of the threaded cylinder drives the rotating cylinder to move the mounting block and the dispersing plate up and down. The top cover is provided with a telescopic component for driving the rotating cylinder to extend and retract within the threaded cylinder.

[0007] Furthermore, the telescopic component includes a mounting plate, which is fixedly mounted on the rotating rod located inside the threaded cylinder. The telescopic component also includes a second spring, which is sleeved on the rotating rod located inside the threaded cylinder. Its upper end abuts against the mounting plate, and its lower end abuts against the abutting ring. The second spring is used to push the abutting ring to always abut against the fixed ring.

[0008] Furthermore, the discharge pipe is provided with a slot that connects to the discharge pipe, and the sealing element includes an L-shaped sealing plate. One end of the sealing plate is inserted into the discharge pipe through the slot, and a locking bolt is provided on the side wall of the sealing plate. The locking bolt is threaded onto the side wall of the discharge pipe to achieve the sealing of the discharge pipe by the sealing plate.

[0009] Furthermore, the upper end of the threaded cylinder extends through the top cover, and a hand crank is provided at the end of the extended end.

[0010] Furthermore, a servo motor is mounted on the top cover via a mounting bracket; the upper end of the rotating rod extends through the threaded cylinder, and the output end of the servo motor is connected to the upper end of the rotating rod via a coupling.

[0011] Furthermore, the lower side of the dispersing plate is provided with bristles.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. In this utility model, by setting up a dispersing component, the rotating rod can rotate, which in turn drives the limiting block and the mounting ring to rotate through the limiting groove. This allows the mounting ring to drive the dispersing plate to rotate, and the rotation of the dispersing plate can disperse the konjac powder entering the top cover, so that the konjac powder can fall more dispersedly onto the screen.

[0014] In this invention, the lifting assembly drives the dispersing plate to move the brush bristles downward, allowing them to contact the screen. At this point, the discharge pipe is opened through the sealing element, and the servo motor is started to continue driving the rotating rod to rotate. This allows the dispersing plate to drive the brush bristles to rotate and sweep the impurities accumulated on the screen, thereby allowing the impurities accumulated on the screen to be discharged through the discharge pipe. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a fine powder screening device according to the present invention.

[0016] Figure 2 This is a schematic diagram showing the position and structure of the dispersing plate and the screen in this utility model.

[0017] Figure 3 This is a cross-sectional structural diagram of the lifting component in this utility model.

[0018] Figure 4This is an enlarged structural diagram of part A in this utility model.

[0019] Figure 5 This is a schematic diagram of the cross-sectional structure of the telescopic component in this utility model.

[0020] Figure 6 This is an exploded structural diagram of the lifting assembly and telescopic component in this utility model.

[0021] The meanings of the labels in the diagram are as follows: 100, base; 101, collection frame; 102, sieve frame; 103, top cover; 104, servo motor; 105, rotating rod; 106, hand crank; 107, feeding hopper; 108, discharge pipe; 109, sealing plate; 110, locking bolt; 111, sliding column; 112, first spring;

[0022] 200. Threaded cylinder; 201. Rotating cylinder; 202. Mounting ring; 203. Dispersing plate; 204. Screen; 205. Mounting base; 206. Vibrating motor;

[0023] 300. The second spring;

[0024] 400. Mounting plate; 401. Limiting groove;

[0025] 500, Abutment ring; 501, Retaining ring;

[0026] 600, Limit Block. Detailed Implementation

[0027] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments are merely illustrative of this utility model and are not intended to limit it.

[0028] The following is in conjunction with the appendix Figures 1-6 This embodiment will be described in further detail.

[0029] Combination Figures 1-6This embodiment of a fine powder screening device includes a base 100, a vibrating mounting seat 205 on the base 100, a collection frame 101 on the mounting seat 205, and a sieve frame 102 on the collection frame 101. A frustum-shaped sieve 204 is provided inside the sieve frame 102. A top cover 103 is provided on the sieve frame 102, and a feeding hopper 107 for adding fine powder into the sieve frame 102 is provided on the side wall of the top cover 103. A dispersing component is provided inside the top cover 103 to disperse the fine powder entering the top cover 103. The dispersing component includes... A rotatable rotating rod 105 has a limiting groove 401 along its axial direction. An installation ring 202 is fitted over the rotating rod 105. A limiting block 600 that extends into the limiting groove 401 is provided on the installation ring 202. A dispersing plate 203 is also provided on the installation ring 202. A lifting assembly is provided on the rotating rod 105. The lifting assembly is used to drive the dispersing plate 203 to move downward to clean impurities on the screen 204. A discharge pipe 108 is provided on the side wall of the screen frame 102. A sealing element is provided inside the discharge pipe 108 to control the opening and closing of the discharge pipe 108.

[0030] In practical use, in order to install the mounting base 205 on the base 100, the upper end of the base 100 extends outward to form a flange ring. A plurality of sliding columns 111 are evenly arranged on the mounting base 205. The sliding columns 111 pass through the flange ring. A positioning nut is provided at the lower end of the sliding column 111. A first spring 112 is sleeved on the sliding column 111 located between the mounting base 205 and the base 100, so that the mounting base 205 can be installed on the base 100. Specifically, a vibration motor 206 is provided on the mounting base 205. The vibration motor 206, together with the first spring 112 and other structures, realizes the vibration of the mounting base 205.

[0031] Specifically, the upper and lower side walls of the collection frame 101 are provided with first flanges, and the collection frame 101 is fixedly installed on the mounting base 205 through the first flanges; the upper and lower walls of the screen frame 102 are provided with second flanges, and the screen frame 102 is fixedly installed on the collection frame 101 through the second flanges; wherein, in order to realize the disassembly and assembly of the top cover 103 on the screen frame 102, the lower end of the top cover 103 is provided with a third flange.

[0032] The screen 204 has multiple screen holes evenly distributed on it. The screen 204 is fixedly installed inside the screen frame 102, so that the screen frame 102 can drive the screen 204 to vibrate. When sieving konjac powder, the konjac powder to be sieved is added into the top cover 103 through the feeding hopper 107, so that the konjac powder can fall onto the screen 204. The vibration of the screen 204 can separate the konjac powder and impurities, so that the sieved konjac powder can enter the collection frame 101 below through the screen holes for collection. Impurities can remain on the screen 204 and be discharged through the discharge pipe 108.

[0033] In actual use, a servo motor 104 is mounted on the top cover 103 via a mounting bracket. The upper end of the rotating rod 105 extends through the top cover 103. The output end of the servo motor 104 is connected to the upper end of the rotating rod 105 via a coupling. The dispersing plate 203 is fixedly mounted on the outer wall of the mounting ring 202, and the dispersing plate 203 is inclined to cooperate with the frustum surface of the screen 204. When it is necessary to disperse the konjac powder added to the screen frame 102, the mounting ring is driven by the lifting component. The 202 drive dispersing plate 203 to move up to the highest position along the limiting groove 401, and drive the rotating rod 105 to rotate through the servo motor 104. This allows the rotating rod 105 to drive the limiting block 600 through the limiting groove 401, thereby driving the mounting ring 202 to rotate, which in turn drives the dispersing plate 203 to rotate, so that the konjac powder added by the feeding hopper 107 is dispersed. This allows the konjac powder to fall more dispersedly onto the screen 204, thereby shortening the screening time of the screen 204 for the konjac powder.

[0034] The lower side of the dispersing plate 203 is provided with bristles. When it is necessary to discharge the impurities accumulated on the screen 204, the vibration motor 206 stops driving the mounting base 205 to vibrate, and the servo motor 104 stops driving the rotating rod 105 to rotate. Then, the lifting component drives the dispersing plate 203 to move the bristles down so that the bristles can contact the screen 204. At this time, the discharge pipe 108 is opened through the sealing element, and the servo motor 104 is started to continue driving the rotating rod 105 to rotate, so that the dispersing plate 203 can drive the bristles to rotate and sweep the impurities accumulated on the screen 204, thereby allowing the impurities accumulated on the screen 204 to be discharged through the discharge pipe 108.

[0035] Specifically, since the screen 204 is truncated cone-shaped, the impurities accumulated on the screen 204 can slide down along the truncated cone surface of the screen 204 and be cleaned by the rotation of the brush bristles driven by the dispersing plate 203, so that the impurities can be discharged through the discharge pipe 108 in a better way.

[0036] The sealing of the discharge pipe 108 by the sealing element can prevent konjac powder from being discharged from the discharge pipe 108 during the vibrating sieving process.

[0037] Combination Figures 3-6As shown, in this embodiment, the lifting assembly includes a threaded cylinder 200, which is threadedly mounted on the top cover 103 and sleeved around the rotating rod 105. The threaded cylinder 200 has openings at both ends. The upper end of the rotating rod 105 extends through the threaded cylinder 200. A fixing ring 501 is provided at the lower opening of the threaded cylinder 200. A rotatable rotating cylinder 201 is provided on the upper side wall of the mounting ring 202. The upper end of the rotating cylinder 201 extends into the threaded cylinder 200, and its extended end is provided with an abutment ring 500, which abuts against the fixing ring 501. The rotation of the threaded cylinder 200 drives the rotating cylinder 201 to move the mounting block and the dispersing plate 203 up and down. The top cover 103 is provided with a telescopic component for driving the rotating cylinder 201 to extend and retract within the threaded cylinder 200.

[0038] In actual use, the top cover 103 is provided with a threaded hole and an internal thread. The outer wall of the threaded cylinder 200 is provided with an external thread that mates with the internal thread. By rotating the threaded cylinder 200, the threaded cylinder 200 can move up and down on the top cover 103. Through the cooperation of the abutment ring 500 and the fixed ring 501, when the threaded cylinder 200 drives the fixed ring 501 to move upward, the fixed ring 501 can drive the abutment ring 500 to drive the rotating cylinder 201 to move upward, thereby enabling the rotating cylinder 201 to drive the mounting ring 202 to drive the dispersing plate 203 to move upward along the limiting groove 401. When the threaded cylinder 200 drives the fixed ring 501 to move downward, the abutment ring 500 can always abut against the fixed ring 501 through the push of the telescopic member, thereby enabling the rotating cylinder 201, the mounting ring 202 and the dispersing plate 203 to move downward.

[0039] Specifically, the retaining ring 501 is fixedly installed at the lower end opening of the threaded cylinder 200, and the abutment ring 500 is fixedly installed at the upper cylinder opening of the rotating cylinder 201.

[0040] In actual use, when there are too many impurities accumulated on the screen 204, in order to prevent the dispersing plate 203 from being unable to continue moving down and making the brush bristles contact the screen 204 due to the dispersing plate 203 being pressed against the impurities during the downward movement of the rotating cylinder 201, the telescopic component is set so that when the dispersing plate 203 is squeezed by the impurities during the downward movement of the rotating cylinder 201, the telescopic component can drive the rotating cylinder 201 to move up and retract into the threaded hole so that the dispersing plate 203 can be buffered. At this time, the servo motor 104 drives the dispersing plate 203 to drive the brush bristles to clean the impurities. When the dispersing plate 203 is gradually no longer squeezed, the telescopic component can gradually push the rotating cylinder 201 out of the threaded hole so that the abutting ring 500 can abut against the fixed ring 501.

[0041] The rotating cylinder 201 is rotatably mounted on the mounting ring 202 via a bearing. The engagement of the internal and external threads makes it difficult for the threaded cylinder 200 to rotate.

[0042] Specifically, the top cover 103 has a mounting block on its upper side, and a positioning bolt is threaded on the mounting block. When the dispersing plate 203 drives the brush to clean the impurities on the screen 204, the positioning bolt is turned so that one end of the positioning bolt can press against the outer wall of the threaded cylinder 200, making it difficult for the threaded cylinder 200 to rotate. When it is necessary to rotate the threaded cylinder 200, the positioning bolt is turned so that one end of the positioning bolt can move away from the outer wall of the threaded cylinder 200, allowing the operator to rotate the threaded cylinder 200.

[0043] In order to facilitate the operator to rotate the threaded cylinder 200, in this embodiment, the upper end of the threaded cylinder 200 extends through the top cover 103, and a hand crank 106 is fixedly provided at the end of the extended end. The hand crank 106 facilitates the operator to rotate the threaded cylinder 200.

[0044] In this embodiment, the telescopic component includes a mounting plate 400, which is fixedly mounted on a rotating rod 105 located inside the threaded cylinder 200. The telescopic component also includes a second spring 300, which is sleeved on the rotating rod 105 located inside the threaded cylinder 200. Its upper end abuts against the mounting plate 400, and its lower end abuts against the abutment ring 500. The second spring 300 is used to push the abutment ring 500 to always abut against the fixed ring 501.

[0045] In actual use, when the dispersing plate 203 is pressed down, the dispersing plate 203 presses the rotating cylinder 201, causing the abutment ring 500 to move up and compress the second spring 300, so that the rotating cylinder 201 can retract into the threaded cylinder 200. When the dispersing plate 203 is not pressed, the second spring 300 pushes the rotating cylinder 201 outward so that the abutment ring 500 can abut against the fixed ring 501.

[0046] The second spring 300 has rubber pads at both ends, which makes it difficult for the second spring 300 to move on the rotating rod 105.

[0047] Combination Figure 3 As shown, in this embodiment, the discharge pipe 108 is provided with a slot that connects to the discharge pipe 108, and the sealing element includes an L-shaped sealing plate 109. One end of the sealing plate 109 is inserted into the discharge pipe 108 through the slot, and a locking bolt 110 is provided on the side wall of the sealing plate 109. The locking bolt 110 is threadedly connected to the side wall of the discharge pipe 108 to achieve the sealing of the discharge pipe 108 by the sealing plate 109.

[0048] In actual use, when it is necessary to discharge the impurities on the screen 204, the locking bolt 110 is loosened to release the threaded connection between it and the discharge pipe 108, so that the sealing plate 109 can be pulled out from the discharge pipe 108 through the slot, so that the discharge pipe 108 can be opened and the impurities can be discharged.

[0049] Specifically, the sealing plate 109 is equipped with a rubber gasket, which can seal the sealing plate 109 with the side wall of the discharge pipe 108, thereby better preventing the konjac powder from being discharged.

[0050] In summary, the above description is only a preferred embodiment of the present utility model. All equivalent changes and modifications made within the scope of the patent application of the present utility model shall fall within the scope of the patent of the present utility model.

Claims

1. A fine powder screening device, comprising a base (100), a vibrating mounting seat (205) on the base (100), a collection frame (101) on the mounting seat (205), and a sieve frame (102) on the collection frame (101); characterized in that: A truncated cone-shaped screen (204) is provided inside the screen frame (102). A top cover (103) is provided on the screen frame (102). A feeding hopper (107) for adding refined powder into the screen frame (102) is provided on the side wall of the top cover (103). A dispersing component is provided inside the top cover (103). The dispersing component is used to disperse the refined powder entering the top cover (103). The dispersing component includes a rotatable rotating rod (105). A limiting groove (401) is provided on the rotating rod (105) along its axial direction. The rotating rod (105) has a limiting groove (401) on its outer side. An installation ring (202) is provided, and a limiting block (600) is provided on the installation ring (202) to extend into the limiting groove (401). A dispersing plate (203) is also provided on the installation ring (202). A lifting component is provided on the rotating rod (105), which is used to drive the dispersing plate (203) to move down to clean the impurities on the screen (204). A discharge pipe (108) is provided on the side wall of the screen frame (102), and a sealing element is provided in the discharge pipe (108) to control the opening and closing of the discharge pipe (108).

2. The fine powder screening device according to claim 1, characterized in that: The lifting assembly includes a threaded cylinder (200), which is threadedly mounted on the top cover (103) and sleeved on the rotating rod (105). The threaded cylinder (200) has openings at both ends. A fixing ring (501) is provided at the lower opening of the threaded cylinder (200). A rotatable rotating cylinder (201) is provided on the upper side wall of the mounting ring (202). The upper end of the rotating cylinder (201) extends into the threaded cylinder (200), and an abutment ring (500) is provided at its extended end. The abutment ring (500) abuts against the fixing ring (501). The rotation of the threaded cylinder (200) is used to drive the rotating cylinder (201) to drive the mounting block and the dispersing plate (203) to lift and lower. The top cover (103) is provided with a telescopic component for driving the rotating cylinder (201) to extend and retract within the threaded cylinder (200).

3. The fine powder screening device according to claim 2, characterized in that: The telescopic component includes a mounting plate (400), which is fixedly mounted on a rotating rod (105) located inside a threaded cylinder (200). The telescopic component also includes a second spring (300), which is sleeved on the outside of the rotating rod (105) located inside the threaded cylinder (200). Its upper end abuts against the mounting plate (400), and its lower end abuts against the abutment ring (500). The second spring (300) is used to push the abutment ring (500) to always abut against the fixed ring (501).

4. The fine powder screening device according to claim 1, characterized in that: The discharge pipe (108) is provided with a slot for communicating with the discharge pipe (108). The sealing element includes an L-shaped sealing plate (109). One end of the sealing plate (109) is inserted into the discharge pipe (108) through the slot. The side wall of the sealing plate (109) is provided with a locking bolt (110). The locking bolt (110) is threaded to the side wall of the discharge pipe (108) to achieve the sealing of the discharge pipe (108) by the sealing plate (109).

5. The fine powder screening device according to claim 2, characterized in that: The upper end of the threaded cylinder (200) extends through the top cover (103) and a hand crank (106) is provided at the end of the extended end.

6. The fine powder screening device according to claim 2, characterized in that: A servo motor (104) is mounted on the top cover (103) via a mounting bracket; the upper end of the rotating rod (105) extends through the threaded cylinder (200), and the output end of the servo motor (104) is connected to the upper end of the rotating rod (105) via a coupling.

7. The fine powder screening device according to claim 1, characterized in that: The lower side of the dispersing plate (203) is provided with bristles.

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