A sesame raw material sieving device

Abstract

This application belongs to the technical field of screening devices and discloses a sesame raw material screening device, including a screening box and a feed hopper fixed and connected to the top of the screening box. A discharge through-hole is provided through the side wall of the screening box. An L-shaped partition block is fixed inside the screening box. An annular frame is fixed between the inner side wall of the screening box and the vertical section of the partition block. A screen plate is slidably arranged inside the screening box. The distance between the screen plate and the bottom of the screening box gradually decreases from the annular frame to the partition block. The distance between the end of the screen plate near the partition block and the annular frame is greater than the distance between the side wall of the partition block away from the annular frame and the annular frame. A spring is provided between the screen plate and the annular frame. A lifting mechanism is provided on the screening box. This application, through improvements to the existing technical structure, eliminates the need to remove residues from the surface of the screen plate, thus improving the screening efficiency of the device.

Description

Technical Field

[0001] This utility model relates to the field of screening device technology, and in particular to a sesame raw material screening device. Background Technology

[0002] Sesame, belonging to the Pedaliaceae family, is one of the oldest known crops. Today, sesame is widely cultivated in tropical and subtropical regions and is an important high-quality oilseed crop worldwide. It is also a crucial oilseed crop and specialty agricultural product for the production of high-quality edible oil in China. Before processing, sesame seeds need to be sieved to remove impurities such as sesame stalk fragments.

[0003] Chinese utility model patent CN215507701U discloses a screening device for sesame oil processing, including a box body. A feed hopper connected to the interior of the box body is fixedly installed at the middle of the top of the box body. A screening component is provided inside the box body. The screening component includes a screening plate and two slides. The two slides are respectively fixedly installed on the inner walls of the two sides of the box body. Slide plates that slide and engage with the slides are fixedly installed on both sides of the screening plate. A rack plate is fixedly installed at the top of one slide plate. A drive motor is fixedly installed at the top of one slide. An incomplete gear that meshes with the rack plate is fixedly installed on the drive shaft of the drive motor. A slot corresponding to the incomplete gear is opened at the top of one slide. A material leveling component is provided at the top of the screening plate. A discharge port is opened at the bottom of one side of the box body.

[0004] In the process of using the above-mentioned screening device for sesame oil processing, after screening sesame seeds for a period of time, in order to prevent the screening plate from becoming clogged, the residue on the surface of the screening plate needs to be removed before subsequent screening can be carried out. This is not conducive to improving the overall screening efficiency of the device. Utility Model Content

[0005] To solve the above problems, this utility model provides a sesame raw material screening device.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a sesame raw material sieving device, comprising a sieving box and a feed hopper fixed and connected to the top of the sieving box, wherein a discharge through hole is provided through the side wall of the sieving box, an L-shaped partition block is fixed inside the sieving box, an annular frame is fixed between the inner side wall of the sieving box and the vertical section of the partition block, a sieve plate is slidably arranged inside the sieving box, the distance between the sieve plate and the bottom of the sieving box gradually decreases from the annular frame to the partition block, the distance between the end of the sieve plate near the partition block and the annular frame is greater than the distance between the side wall of the vertical section of the partition block away from the annular frame and the annular frame, and a spring is provided between the sieve plate and the annular frame.

[0007] By adopting the above technical solution, the sesame seeds to be screened are first discharged from the feed hopper into the screening box. The sesame seeds fall back onto the surface of the screen plate, where they are screened. The screened sesame seeds fall onto the inner bottom wall of the screening box. Because the distance between the screen plate and the bottom of the screening box gradually decreases from the annular frame to the dividing block, impurities roll down from the top of the screen plate to the top of the horizontal section of the dividing block, eliminating the need to remove residue from the screen plate surface and improving the screening efficiency of the device. Furthermore, the force generated by the free fall of the sesame seeds acts on the surface, and the spring vibrates under the force, thereby reducing the probability of sesame seed accumulation and clogging, and also helping residues roll onto the dividing block.

[0008] Furthermore, the screening box is provided with a lifting mechanism, which includes a lifting assembly. The lifting assembly includes a rotating rod that passes through and is rotatably connected to the screening box, a cam plate that is fixedly sleeved on the rotating rod and located below the screen plate, a vertical rod that is fixed to the top of the screen plate, and a limiting block that is fixed to the lower end of the vertical rod. The vertical rod passes through the annular frame and is slidably engaged. The spring is fixed between the limiting block and the annular frame. The lifting mechanism also includes a rotating assembly for driving the rotating rod to rotate.

[0009] By adopting the above technical solution, the rotating component drives the rotating rod to rotate, causing the cam plate connected to the rotating rod to rotate. During this process, the side wall of the cam plate away from its axis first moves closer to the screen plate and comes into contact with it, causing the screen plate, the vertical rod connected to the screen plate, and the limiting block connected to the vertical rod to rise. The spring is stressed and gradually extends. Finally, the side wall of the cam plate away from its axis moves away from the screen plate and separates from it. The spring gradually contracts and returns to its original position, causing the limiting block connected to the spring, the spring slot connected to the limiting block, and the screen plate connected to the vertical rod to fall. The lifting component improves the reset and frequency of the screen plate's lifting and lowering, thereby improving the anti-clogging effect.

[0010] Furthermore, the screening box is provided with a conveying mechanism, which includes a main synchronous wheel rotatably installed inside the screening box and located below the partition block, a driven synchronous wheel rotatably installed inside the screening box and located in the discharge through hole, a synchronous belt for connecting the main synchronous wheel and the driven synchronous wheel, and a motor fixed on the screening box and driving the main synchronous wheel to rotate. The synchronous belt meshes with both the main synchronous wheel and the driven synchronous wheel.

[0011] By adopting the above technical solution, the sifted sesame seeds will fall to the top of the synchronous belt. At this time, the motor works and drives the main synchronous wheel to rotate, so that the synchronous belt connected to the main synchronous wheel and the slave synchronous wheel connected to the synchronous belt will both rotate, thereby discharging the sifted sesame seeds from the sifting box through the discharge hole, which facilitates the discharge of the device.

[0012] Furthermore, the rotating assembly includes a drive sprocket fixedly sleeved on a rotating rod and a drive shaft fixedly sleeved on and coaxially arranged with the driven sprocket. The drive shaft passes through the screening box and is rotatably connected. The rotating assembly also includes a driven sprocket fixedly sleeved on the drive shaft and a chain for connecting the drive sprocket and the driven sprocket. The chain meshes with both the driven sprocket and the drive sprocket.

[0013] By adopting the above technical solution, during the rotation of the synchronous pulley, the drive shaft connected to the synchronous pulley, the driven sprocket connected to the drive shaft, the chain connected to the driven sprocket, the driving sprocket connected to the chain, and the rotating rod connected to the driving sprocket all rotate, thereby achieving the purpose of rotating the cam plate.

[0014] Furthermore, a discharge mechanism is provided on the partition block, and a chip removal through hole is provided through the side wall of the screening box at the position corresponding to the partition block. The distance between the top of the horizontal section of the partition block and the bottom of the screening box is greater than the distance between the bottom wall of the chip removal through hole and the bottom of the screening box. The discharge mechanism includes a discharge component, which includes a scraper block slidably disposed on the top of the horizontal section of the partition block and a slider fixed on the scraper block. A sliding groove is provided on the inner side wall of the screening box to slide with the slider. The distance between the sliding groove and the bottom of the screening box gradually decreases from the annular frame to the partition block. The distance between the top of the horizontal section of the partition block and the bottom of the screening box gradually decreases from the partition block to the chip removal through hole. The discharge mechanism also includes a displacement component for driving the scraper block to move.

[0015] By adopting the above technical solution, the scraper block is driven to move by the displacement component, so that the slider connected to the scraper block moves along the groove. The scraper block discharges the residue located on the horizontal section of the separator block into the screening box through the chip discharge hole, which facilitates the discharge of residue by the device.

[0016] Furthermore, the top of the scraper is provided with a slot, and the displacement assembly includes an insert plate inserted into the slot, a horizontal plate fixed to the top of the insert plate, and a connecting rod that is slidably disposed on the screening box, the connecting rod being fixed to the horizontal plate.

[0017] By adopting the above technical solution, the connecting rod is pulled and the horizontal plate is moved, so that the insert plate connected to the horizontal plate and the scraper connected to the insert plate are both moved, thereby achieving the purpose of discharging the residue.

[0018] Furthermore, a storage box is fixed on the side wall of the screening box near the discharge through hole, the storage box is located below the discharge through hole, and a partition is fixed inside the storage box.

[0019] By adopting the above technical solution, during the rotation of the synchronous belt, the sesame seeds on it will move with the synchronous belt and fall into the storage box for storage, so as to facilitate subsequent operations. In addition, the partition divides the storage box into two parts. Since the density of stones is greater than that of sesame seeds, the weight of stones of the same volume is greater than that of sesame seeds. This causes the sesame seeds and stones to fall to the two sides of the partition respectively, further screening the sesame seeds and thus improving the screening effect of the device.

[0020] In summary, the present invention has the following beneficial effects: In this application, by improving the existing technical structure, it is not necessary to remove the residue on the surface of the sieve plate, thereby improving the screening efficiency of the device. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0022] Figure 2 This is a cross-sectional structural schematic diagram of an embodiment of the present utility model;

[0023] Figure 3 This is a plan view of an embodiment of the present invention to highlight the internal structure of the screening box;

[0024] Figure 4 This is a schematic diagram illustrating the connection structure between the insert plate and the slot in this embodiment of the present invention;

[0025] Figure 5 yes Figure 2 Enlarged diagram of point A in the middle.

[0026] In the diagram: 1. Screening box; 2. Feed hopper; 3. Discharge through hole; 4. Divider block; 5. Ring frame; 6. Screen plate; 7. Spring; 8. Lifting mechanism; 81. Lifting assembly; 811. Rotating rod; 812. Cam plate; 813. Vertical rod; 814. Limiting block; 82. Rotating assembly; 821. Drive sprocket; 822. Drive shaft; 823. Driven sprocket; 824. Chain; 9. Conveying mechanism; 91. Main synchronous pulley; 92. Driven synchronous pulley; 93. Synchronous belt; 94. Motor; 10. Discharge mechanism; 101. Discharge assembly; 1011. Scraper; 1012. Slider; 102. Displacement assembly; 1021. Insert plate; 1022. Horizontal plate; 1023. Connecting rod; 11. Chip discharge through hole; 12. Slide groove; 13. Slot; 14. Storage box; 15. Divider plate. Detailed Implementation

[0027] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0028] like Figure 1-5 As shown in the embodiment of this application, a sesame raw material sieving device is disclosed, including a sieving box 1, a lifting mechanism 8, a conveying mechanism 9, and a discharge mechanism 10. The top of the sieving box 1 is fixed and connected to a feed hopper 2. A discharge through hole 3 is provided through the side wall of the sieving box 1, and an L-shaped partition block 4 is fixed inside the sieving box 1. A chip removal through hole 11 is provided through the side wall of the sieving box 1 at the position corresponding to the partition block 4. The distance between the top of the horizontal section of the partition block 4 and the bottom of the sieving box 1 is greater than the distance between the bottom wall of the chip removal through hole 11 and the bottom of the sieving box 1. The distance between the top of the horizontal section of the partition block 4 and the bottom of the sieving box 1 gradually decreases from the partition block 4 to the chip removal through hole 11. An annular frame 5 is fixed between the inner side wall of the sieving box 1 and the vertical section of the partition block 4. A sieve plate 6 is slidably arranged inside the sieving box 1, and the distance between the sieve plate 6 and the bottom of the sieving box 1 gradually decreases from the annular frame 5 to the partition block 4. The distance between the end of the sieve plate 6 near the separator block 4 and the ring frame 5 is greater than the distance between the side wall of the vertical section of the separator block 4 away from the ring frame 5 and the ring frame 5. A spring 7 is provided between the sieve plate 6 and the ring frame 5.

[0029] First, the sesame seeds to be screened are discharged from the feed hopper 2 into the screening box 1. The sesame seeds fall back onto the surface of the screen plate 6, which screens them. The screened sesame seeds fall onto the inner bottom wall of the screening box 1. Since the distance between the screen plate 6 and the bottom of the screening box 1 gradually decreases from the annular frame 5 to the dividing block 4, impurities will roll down from the top of the screen plate 6 to the top of the horizontal section of the dividing block 4. There is no need to clean the residue on the surface of the screen plate 6, which improves the screening efficiency of the device. In addition, the force generated by the free fall of the sesame seeds will act on the surface, and the spring 7 will vibrate under the force, thereby reducing the probability of sesame seed accumulation and clogging. At the same time, it helps the residue to roll onto the dividing block 4.

[0030] A lifting mechanism 8 is mounted on the screening box 1. The lifting mechanism 8 includes a lifting component 81 and a rotating component 82. The lifting component 81 includes a rotating rod 811, a cam plate 812, a vertical rod 813, and a limiting block 814. The rotating rod 811 passes through the screening box 1 and is rotatably connected. The cam plate 812 is fixedly sleeved on the rotating rod 811 and located below the screen plate 6. The vertical rod 813 is fixed to the top of the screen plate 6. The limiting block 814 is fixed to the lower end of the vertical rod 813. The vertical rod 813 passes through the annular frame 5 and is slidably engaged. A spring 7 is fixed between the limiting block 814 and the annular frame 5. The rotating component 82 drives the rotating rod 811 to rotate, causing the cam plate 812 connected to the rotating rod 811 to rotate. During this process, the side wall of the cam plate 812 away from its axis moves closer to the screen plate 6 and comes into contact with the screen plate 6, causing the screen plate 6, the vertical rod 813 connected to the screen plate 6, and the limiting block 814 connected to the vertical rod 813 to rise. The spring 7 is stressed and gradually extends. Finally, the side wall of the cam plate 812 away from its axis moves away from the screen plate 6 and separates from the screen plate 6. The spring 7 gradually contracts and returns to its original position, causing the limiting block 814 connected to the spring 7, the spring 7 slot 13 connected to the limiting block 814, and the screen plate 6 connected to the vertical rod 813 to fall. The lifting component 81 improves the reset and frequency of the screen plate 6's lifting and lowering, thereby improving the anti-clogging effect.

[0031] A conveying mechanism 9 is mounted on the screening box 1. The conveying mechanism 9 includes a main synchronous pulley 91, a driven synchronous pulley 92, a synchronous belt 93, and a motor 94. The main synchronous pulley 91 is rotatably mounted inside the screening box 1 and located below the separator block 4. The driven synchronous pulley 92 is rotatably mounted inside the screening box 1 and located within the discharge through-hole 3. The synchronous belt 93 connects the main synchronous pulley 91 and the driven synchronous pulley 92. The synchronous belt 93 meshes with both the main synchronous pulley 91 and the driven synchronous pulley 92. The motor 94 is fixed to the screening box 1 and drives the main synchronous pulley 91 to rotate. Screened sesame seeds fall to the top of the synchronous belt 93. At this time, the motor 94 operates and drives the main synchronous pulley 91 to rotate, causing both the synchronous belt 93 connected to the main synchronous pulley 91 and the driven synchronous pulley 92 connected to the synchronous belt 93 to rotate, thereby discharging the screened sesame seeds through the discharge through-hole 3 into the screening box 1, facilitating the discharge of the device.

[0032] The rotating assembly 82 drives the rotating rod 811 to rotate. The rotating assembly 82 includes a driving sprocket 821, a drive shaft 822, a driven sprocket 823, and a chain 824. The driving sprocket 821 is fixedly sleeved on the rotating rod 811. The drive shaft 822 is fixed to the driven synchronous pulley 92 and coaxially arranged with the driven synchronous pulley 92. The drive shaft 822 passes through the screening box 1 and is rotatably connected. The driven sprocket 823 is fixedly sleeved on the drive shaft 822. The chain 824 connects the driving sprocket 821 and the driven sprocket 823, and the chain 824 meshes with both the driven sprocket 823 and the driving sprocket 821. As the synchronous pulley 92 rotates, the drive shaft 822 connected to the synchronous pulley 92, the driven sprocket 823 connected to the drive shaft 822, the chain 824 connected to the driven sprocket 823, the driving sprocket 821 connected to the chain 824, and the rotating rod 811 connected to the driving sprocket 821 all rotate, thereby achieving the purpose of rotating the cam plate 812.

[0033] A discharge mechanism 10 is disposed on the partition block 4, and includes a discharge component 101 and a displacement component 102. The discharge component 101 includes a scraper 1011 and a slider 1012. The scraper 1011 is slidably disposed on the top of the horizontal section of the partition block 4. A slot 13 is provided on the top of the scraper 1011, and the slider 1012 is fixed on the scraper 1011. A groove 12 is provided on the inner side wall of the screening box 1 to slide and engage with the slider 1012. The distance between the groove 12 and the bottom of the screening box 1 gradually decreases from the annular frame 5 to the partition block 4. The displacement component 102 drives the scraper 1011 to move, causing the slider 1012 connected to the scraper 1011 to move along the groove 12. The scraper 1011 discharges the residue located on the horizontal section of the partition block 4 into the screening box 1 through the chip discharge hole 11, facilitating the discharge of residue by the device.

[0034] The displacement assembly 102 drives the scraper block 1011 to move. The displacement assembly 102 includes an insert plate 1021, a horizontal plate 1022, and a connecting rod 1023. The insert plate 1021 is inserted into the slot 13, and the horizontal plate 1022 is fixed to the top of the insert plate 1021. The connecting rod 1023 is slidably mounted on the screening box 1 and is fixed to the horizontal plate 1022. Pulling the connecting rod 1023 moves the horizontal plate 1022, causing both the insert plate 1021 connected to the horizontal plate 1022 and the scraper block 1011 connected to the insert plate 1021 to move, thereby achieving the purpose of discharging residue.

[0035] A storage box 14 is fixed to the side wall of the screening box 1 near the discharge through-hole 3. The storage box 14 is located below the discharge through-hole 3, and a partition 15 is fixed inside the storage box 14. During the rotation of the synchronous belt 93, the sesame seeds on it will move with the synchronous belt 93 and fall into the storage box 14 for storage, so as to facilitate subsequent operations. In addition, the partition 15 divides the storage box 14 into two parts. Since the density of stones is greater than that of sesame seeds, the weight of stones of the same volume is greater than that of sesame seeds. This causes the sesame seeds and stones to fall to the two sides of the partition 15 respectively, further screening the sesame seeds and improving the screening effect of the device.

[0036] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A sesame raw material screening device, comprising a screening box (1) and a feed hopper (2) fixed and communicated with the top of the screening box (1), a discharge through hole (3) is provided through the side wall of the screening box (1), characterized in that: The screening box (1) is fixed with an L-shaped partition block (4). An annular frame (5) is fixed between the inner side wall of the screening box (1) and the vertical section of the partition block (4). A sieve plate (6) is slidably arranged inside the screening box (1). The distance between the sieve plate (6) and the bottom of the screening box (1) gradually decreases from the annular frame (5) to the partition block (4). The distance between the end of the sieve plate (6) near the partition block (4) and the annular frame (5) is greater than the distance between the side wall of the vertical section of the partition block (4) away from the annular frame (5) and the annular frame (5). A spring (7) is arranged between the sieve plate (6) and the annular frame (5).

2. A sesame raw material screening device according to claim 1, characterized in that: The screening box (1) is provided with a lifting mechanism (8). The lifting mechanism (8) includes a lifting component (81). The lifting component (81) includes a rotating rod (811) that passes through the screening box (1) and is rotatably connected to it, a cam plate (812) that is fixedly sleeved on the rotating rod (811) and located below the screen plate (6), a vertical rod (813) that is fixed to the top of the screen plate (6), and a limiting block (814) that is fixed to the lower end of the vertical rod (813). The vertical rod (813) passes through the ring frame (5) and is slidably engaged. The spring (7) is fixed between the limiting block (814) and the ring frame (5). The lifting mechanism (8) also includes a rotating component (82) for driving the rotating rod (811) to rotate.

3. A sesame raw material screening device according to claim 2, characterized in that: The screening box (1) is provided with a conveying mechanism (9), which includes a main synchronous wheel (91) rotatably installed in the screening box (1) and located below the partition block (4), a secondary synchronous wheel (92) rotatably installed in the screening box (1) and located in the discharge through hole (3), a synchronous belt (93) for connecting the main synchronous wheel (91) and the secondary synchronous wheel (92), and a motor (94) fixed on the screening box (1) and driving the main synchronous wheel (91) to rotate. The synchronous belt (93) meshes with both the main synchronous wheel (91) and the secondary synchronous wheel (92).

4. A sesame material screening device according to claim 3, characterized in that: The rotating assembly (82) includes a drive sprocket (821) fixedly sleeved on the rotating rod (811) and a drive shaft (822) fixedly sleeved on the driven synchronous wheel (92) and coaxially arranged with the driven synchronous wheel (92). The drive shaft (822) passes through the screening box (1) and is rotatably connected. The rotating assembly (82) also includes a driven sprocket (823) fixedly sleeved on the drive shaft (822) and a chain (824) for connecting the drive sprocket (821) and the driven sprocket (823). The chain (824) meshes with both the driven sprocket (823) and the drive sprocket (821).

5. A sesame material screening device according to claim 1, characterized in that: A discharge mechanism (10) is provided on the partition block (4). A chip discharge through hole (11) is provided through the side wall of the screening box (1) at the position corresponding to the partition block (4). The distance between the top of the horizontal section of the partition block (4) and the bottom of the screening box (1) is greater than the distance between the bottom wall of the chip discharge through hole (11) and the bottom of the screening box (1). The discharge mechanism (10) includes a discharge component (101). The discharge component (101) includes a scraper (1011) slidably disposed on the top of the horizontal section of the partition block (4) and a scraper fixed to the top of the partition block (4). The slider (1012) on the block (1011) has a sliding groove (12) on the inner side wall of the screening box (1) that slides with the slider (1012). The distance between the sliding groove (12) and the bottom of the screening box (1) gradually decreases from the ring frame (5) to the partition block (4). The distance between the top of the horizontal section of the partition block (4) and the bottom of the screening box (1) gradually decreases from the partition block (4) to the chip discharge through hole (11). The discharge mechanism (10) also includes a displacement component (102) for driving the scraper block (1011) to move.

6. A sesame material screening device according to claim 5, characterized in that: The top of the scraper (1011) is provided with a slot (13). The displacement assembly (102) includes an insert plate (1021) inserted into the slot (13), a horizontal plate (1022) fixed to the top of the insert plate (1021), and a connecting rod (1023) that is slidably disposed on the screening box (1). The connecting rod (1023) is fixed to the horizontal plate (1022).

7. A sesame material screening device according to claim 1, characterized in that: A storage box (14) is fixed on the side wall of the screening box (1) near the discharge through hole (3). The storage box (14) is located below the discharge through hole (3), and a partition (15) is fixed inside the storage box (14).

Images