High-fineness white rice classifying screen structure with double screen ships
By introducing slots, screen plates, baffles, and discharge valves into the high-precision double-screen white rice grading sieve structure, the problem of difficult discharge of white rice or impurities after screening is solved, realizing a fast and convenient discharge process and improving screening efficiency.
Patent Information
- Application Number
- CN202422782743.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-14
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-11-14
AI Technical Summary
The existing high-precision double-screen grading sieve structure for white rice makes it difficult to conveniently discharge white rice or impurities after screening. The screen needs to be removed from the inside of the screening cylinder for discharge, which is inconvenient.
The design incorporates slots, a screen plate, a baffle plate, and a discharge valve. A motor-driven cam causes the screen box to vibrate up and down, which in turn causes the screen plate to vibrate. The slots and discharge valve allow for the rapid discharge of rice or impurities, eliminating the need for screen disassembly.
It enables the rapid and convenient discharge of white rice or impurities without disassembling the sieve plate, thus improving screening efficiency and convenience.
Smart Images

Figure CN223655457U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to white rice processing field, concretely is a kind of high-precision double screen ship white rice grading screen structure. BACKGROUND
[0002] White rice is a kind of rice after refining, and the grain is small. In the processing of white rice, only the procedures such as fine grinding and removing the bran layer of rice are carried out, and the appearance is not as beautiful as that of refined rice, so it is easy to be mistaken for old rice or broken rice. In the processing of white rice, different varieties of white rice such as rice need to be husked. After the husking of rice is completed, there are a large amount of sand and chaff in the white rice. At this time, the sand and chaff need to be screened from the white rice. Generally, we need to screen the whole raw rice into different sizes according to the size of the impurities in the white rice, such as large impurities, fine rice, broken rice and small impurities. To complete such screening operation.
[0003] The current high-precision double screen ship white rice grading screen structure, as described in the patent with publication number CN217450963U, includes a screening cylinder connected to a support rod through a vibration assembly. The support rod is fixedly connected to a plurality of mounting plates. The mounting plates are connected to a mounting ring through a connecting assembly. The mounting ring is connected to a fixed plate through a spring. The fixed plate is fixedly connected to a screening ring at the top. The screening ring is fixedly connected to a screen on one side. The screening ring is fixedly connected to a blocking ring at the top.
[0004] According to the above-mentioned related technology, the inventors believe that the screened white rice or impurities will remain on each layer of screen after screening. Since the screening cylinder does not have an outlet corresponding to each layer of screen, it is necessary to remove the screen from the inside of the screening cylinder for discharging when the white rice and impurities need to be removed, which makes the discharging inconvenient. UTILITY MODEL CONTENTS
[0005] The utility model aims to provide a high-precision double screen ship white rice grading screen structure to solve the problems raised in the above background technology.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:
[0007] A high-precision double screen ship white rice grading screen structure includes
[0008] The utility model provides a screening mechanism, the screening mechanism includes the sieve box, the inner wall of sieve box is evenly provided with a plurality of insertion slot, the inside of each group insertion slot is inserted with the sieve ship board of adaptation, one side of sieve box is rotatably connected with the baffle of adaptation, the one side of baffle is evenly fixedly connected with a plurality of connecting blocks, the outer wall one side of sieve box is evenly fixedly connected with a plurality of limit blocks, the inside of each group limit blocks is slidably connected with the insertion rod, each group insertion rod is penetrated each group connecting block respectively, the side of baffle away from baffle is evenly fixedly connected with a plurality of discharge valves, each group discharge valve is corresponding with each group insertion slot respectively,
[0009] The utility model provides a screening mechanism, the screening mechanism includes the sieve box, the inner wall of sieve box is evenly provided with a plurality of insertion slot, the inside of each group insertion slot is inserted with the sieve ship board of adaptation, one side of sieve box is rotatably connected with the baffle of adaptation, the one side of baffle is evenly fixedly connected with a plurality of connecting blocks, the outer wall one side of sieve box is evenly fixedly connected with a plurality of limit blocks, the inside of each group limit blocks is slidably connected with the insertion rod, each group insertion rod is penetrated each group connecting block respectively, the side of baffle away from baffle is evenly fixedly connected with a plurality of discharge valves, each group discharge valve is corresponding with each group insertion slot respectively,
[0010] As a further scheme of the utility model: the top of each group insertion rod is fixedly connected with the adjusting block, and the adjusting rod is fixedly penetrated in the inside of each group adjusting block.
[0011] As a further scheme of the utility model: the bottom of the adjusting rod is fixedly connected with the fixed block, the fixed block is screw connected with the fixed bolt in the inside, and the fixed bolt is screw connected with the sieve box.
[0012] As a further scheme of the utility model: the top of two groups fixed plate is fixedly connected with the reinforcing rib plate symmetrically, and each group reinforcing rib plate is fixedly connected with the sieve box.
[0013] As a further scheme of the utility model: the top of two groups reinforcing rib plate is fixedly connected with the reinforcing rib plate symmetrically, and each group reinforcing rib plate is fixedly connected with the sieve box.
[0014] As a further scheme of the utility model: the one side of sieve box is equipped with the draft tube, and the end away from the sieve box of each group discharge valve is fixedly communicated with the draft tube.
[0015] Compared with the prior art, the utility model has the advantages that:
[0016] With the above-described structure, this invention, through the cooperation of slots, sieve plates, baffles, and discharge valves, allows slots with different sizes of sieve holes to be inserted into each set of slots when the baffles are open. After the baffles are closed, the rice to be screened can be poured into the sieve box. Driven by the motor, the cam rotates, pushing the fixed plate and the sieve box up and down, which in turn causes each set of sieve plates to vibrate up and down, thus achieving rapid screening of the sieve box. When it is necessary to discharge the rice or impurities screened from the top of each set of sieve plates, simply open the corresponding slot to discharge the rice or impurities at the top of the slot. This eliminates the need to disassemble the sieve plates when discharging the rice or impurities screened from them, making the discharge of rice or impurities more convenient and faster. Attached Figure Description
[0017] The present invention will be further described in detail below with reference to the embodiments shown in the accompanying drawings, but this does not constitute any limitation on the present invention.
[0018] Figure 1 This is a schematic diagram of the overall structure of a high-precision double-screen grading sieve for white rice.
[0019] Figure 2 A high-precision double-screen grading sieve structure for white rice. Figure 1 A schematic diagram of the structure of part A.
[0020] Figure 3 A high-precision double-screen grading sieve structure for white rice. Figure 1 A schematic diagram of the structure of part B.
[0021] Figure 4 This is a cross-sectional view of a high-precision double-screen grading sieve structure for white rice from another perspective.
[0022] Figure 5 A high-precision double-screen grading sieve structure for white rice. Figure 4 A schematic diagram of the C section structure.
[0023] In the diagram: 1. Screening mechanism; 101. Screen box; 102. Slot; 103. Screening plate; 104. Baffle plate; 105. Connecting block; 106. Limiting block; 107. Insert rod; 108. Adjusting block; 109. Adjusting rod; 110. Fixing block; 111. Fixing bolt; 112. Discharge valve; 113. Guide pipe; 2. Vibration mechanism; 201. Fixing plate; 202. Reinforcing rib plate; 203. Guide column; 204. U-shaped base; 205. Support plate; 206. Spring; 207. Motor; 208. Cam. Detailed Implementation
[0024] The technical solution of this patent will be further described in detail below with reference to specific embodiments.
[0025] Please see Figures 1-5 A high-precision double-screen rice grading structure includes a screening mechanism 1, which comprises a screen box 101. Multiple slots 102 are evenly distributed on the inner wall of the screen box 101. Each slot 102 contains a matching screen plate 103. The slots 102 limit the movement of the screen plates 103, facilitating replacement and allowing for the use of screen plates 103 with different mesh sizes to achieve high-precision rice grading. A matching baffle plate 104 is rotatably connected to one side of the screen box 101, closing one side of the screen box 101 to facilitate the disassembly and replacement of the screen plates 103.
[0026] Multiple connecting blocks 105 are evenly fixedly connected to one side of the baffle plate 104, and multiple limiting blocks 106 are evenly fixedly connected to one side of the outer wall of the screen box 101. Each set of limiting blocks 106 has a slidingly connected insert rod 107 inside, and each set of insert rods 107 passes through each set of connecting blocks 105. The insert rods 107 are used to limit the movement of the connecting blocks 105 and the baffle plate 104. An adjusting block 108 is fixedly connected to the top of each set of insert rods 107, and an adjusting rod 109 is fixedly fixedly connected inside each set of adjusting blocks 108. The adjusting rod 109 is used to drive the adjusting blocks 108 and the insert rods 107 up and down during movement, thereby achieving synchronous adjustment of each set of insert rods 107.
[0027] A fixing block 110 is fixedly connected to the bottom of the adjusting rod 109. A fixing bolt 111 is threadedly connected to the inside of the fixing block 110. The fixing bolt 111 is threadedly connected to the sieve box 101. The fixing bolt 111 is set to limit the fixing block 110 and the adjusting rod 109 after being screwed to the sieve box 101, thereby reducing the probability that the insertion rod 107 will disengage from the inside of the connecting block 105 during the screening of white rice. Multiple discharge valves 112 are evenly fixedly connected to the side of the baffle plate 104 away from the baffle plate 104. Each set of discharge valves 112 corresponds to a set of slots 102. The discharge valves 112 are set to discharge the screened white rice or impurities on the top of the corresponding sieve plate 103 when opened, so that the screened white rice and impurities can be discharged without disassembling the sieve plate 103.
[0028] A guide pipe 113 is provided on one side of the sieve box 101. The end of each set of discharge valves 112 away from the sieve box 101 is fixedly connected to the guide pipe 113. The guide pipe 113 is used to guide the white rice or impurities discharged by the discharge valves 112. The vibration mechanism 2 includes fixed plates 201 symmetrically fixedly connected to both sides of the outer wall of the sieve box 101. The top of each set of fixed plates 201 is symmetrically fixedly connected to reinforcing ribs 202. Each set of reinforcing ribs 202 is fixedly connected to the sieve box 101. The reinforcing ribs 202 are used to further connect and fix the fixed plates 201 to the sieve box 101, thereby improving the connection stability between the sieve box 101 and the fixed plates 201.
[0029] Two sets of fixed plates 201 are symmetrically fixedly connected to their bottoms with springs 206. Support plates 205 are fixedly connected to the ends of the springs 206 away from the fixed plates 201 on both sides. The support plates 205 and springs 206 provide support for the fixed plates 201. U-shaped bases 204 are fixedly connected to the opposite sides of the two sets of support plates 205, providing further support. Guide posts 203 are symmetrically fixedly connected to the tops of the two sets of support plates 205. The guide posts 203 penetrate the interior of the two fixed plates 201 and are slidably connected to them. The guide posts 203 guide the vertical movement of the fixed plates 201.
[0030] Motors 207 are fixedly connected to both sides of the U-shaped base 204. Cams 208 are fixedly connected to the output ends of the two sets of motors 207. The two sets of cams 208 are respectively set at the bottom of the two sets of fixed plates 201. The motors 207 are set to drive the cams 208 to rotate when the machine starts working. When the cams 208 rotate, they can push the fixed plates 201 and the screen box 101 to shake up and down, thereby improving the screening efficiency of the screen plate 103 for white rice.
[0031] In use, tighten the fixing bolt 111 until it disengages from the sieve box 101. Then, move the adjusting rod 109 upwards, causing it to move the adjusting blocks 108 and the insert rods 107 upwards until the insert rods 107 push away from the interior of the connecting blocks 105, thus engaging the limiting positions of the connecting blocks 105 and the baffle plate 104. Then, open the baffle plate 104. Next, select the sieve plate 103 with the corresponding sieve hole size according to the required particle size of the white rice to be sieved. Then, insert the sieve plates 103 from top to bottom into the corresponding slots 102 according to the sieve holes from largest to smallest. Then, close the baffle plate 104 again and move the adjusting rod 109 downwards, causing the adjusting blocks 108 and the insert rods 107 to move downwards until the insert rods 107 penetrate the interior of the connecting blocks 105. Finally, pour the white rice to be sieved from the top of the sieve box 101. The rice is fed into the container and the motors 207 on both sides are started. When the motors 207 start working, they can drive the cam 208 to rotate. When the cam 208 rotates, it can push the fixed plate 201 and the screen box 101 to shake up and down, thereby causing each set of screen plates 103 to shake up and down. When each set of screen plates 103 shakes up and down, it can perform multi-stage screening of white rice. When it is necessary to discharge the white rice or impurities filtered out from the top of each set of slots 102, simply open one set of discharge valves 112. This allows the white rice or impurities on the top of the screen plate 103 corresponding to the discharge valve 112 to be discharged into the interior of the guide pipe 113 through the corresponding discharge valve 112 and finally discharged from the guide pipe 113. After the white rice or impurities on the top of one set of discharge valves 112 are discharged, the next set of discharge valves 112 is opened, thereby realizing the discharge of white rice or impurities on the top of the next set of screen plates 103. This process is repeated until the white rice or impurities on the top of each set of discharge valves 112 are discharged.
[0032] The above-described embodiments are preferred embodiments of the present utility model and are only used to facilitate the illustration of the present utility model. They are not intended to limit the present utility model in any way. Any person skilled in the art who makes partial modifications or alterations to the technical content disclosed in the present utility model without departing from the scope of the technical features of the present utility model shall still fall within the scope of the technical features of the present utility model.
Claims
1. A high-precision double-screen grading sieve structure for white rice, characterized in that, include A screening mechanism (1) includes a screening box (101). The inner wall of the screening box (101) is evenly provided with multiple slots (102). Each set of slots (102) has a matching screening plate (103) inserted inside. A matching baffle plate (104) is rotatably connected to one side of the screening box (101). Multiple connecting blocks (105) are evenly fixedly connected to one side of the baffle plate (104). Multiple limiting blocks (106) are uniformly fixedly connected to one side of the outer wall of the shield (105). Each set of limiting blocks (106) is slidably connected to the inside of each set of limiting blocks (106). Each set of insert rods (107) passes through each set of connecting blocks (105). Multiple discharge valves (112) are uniformly fixedly connected to the side of the shield (104) away from the shield (104). Each set of discharge valves (112) corresponds to each set of slots (102). The vibration mechanism (2) includes fixed plates (201) symmetrically fixedly connected to both sides of the outer wall of the screen box (101). Springs (206) are symmetrically fixedly connected to the bottom of both sets of fixed plates (201). Support plates (205) are fixedly connected to the ends of the springs (206) away from the fixed plates (201) on both sides. U-shaped bases (204) are fixedly connected to the opposite sides of the two sets of support plates (205). Motors (207) are fixedly connected to both sides of the U-shaped bases (204). Cams (208) are fixedly connected to the output ends of the two sets of motors (207). The two sets of cams (208) are respectively set at the bottom of the two sets of fixed plates (201).
2. The high-precision double-screen grading sieve structure for white rice as described in claim 1, characterized in that, Each set of the insertion rods (107) has an adjustment block (108) fixedly connected to its top, and an adjustment rod (109) is fixedly fixed through the interior of each set of the adjustment block (108).
3. The high-precision double-screen grading sieve structure for white rice as described in claim 2, characterized in that, The bottom of the adjusting rod (109) is fixedly connected to a fixing block (110), and the fixing block (110) is internally threaded with a fixing bolt (111), which is threadedly connected to the screen box (101).
4. The high-precision double-screen grading sieve structure for white rice as described in claim 1, characterized in that, The tops of the two sets of fixing plates (201) are symmetrically fixed with reinforcing ribs (202), and each set of reinforcing ribs (202) is fixedly connected to the sieve box (101).
5. The high-precision double-screen grading sieve structure for white rice as described in claim 1, characterized in that, The tops of the two sets of support plates (205) are symmetrically fixed with guide columns (203), and the guide columns (203) on both sides penetrate the interior of the two fixed plates (201) respectively, and are slidably connected to the two sets of fixed plates (201) respectively.
6. The high-precision double-screen grading sieve structure for white rice as described in claim 1, characterized in that, A guide pipe (113) is provided on one side of the screen box (101), and the end of each set of discharge valves (112) away from the screen box (101) is fixedly connected to the guide pipe (113).