Grain polishing machine based on multi-stage friction

Abstract

The utility model discloses a grain polishing machine based on multistage friction, concretely relates to grain polishing technical field, including polishing shell, the inside of polishing shell is installed with two height different support arc frame, is provided with the polishing shake box between two support arc frames, the surface of polishing shake box is installed with first sliding block, the surface of polishing shake box is installed with second sliding block, and first sliding block and second sliding block are slidably connected with two height different support arc frame respectively, the inside of polishing shake box is installed with multistage stepped polishing plate, is seted up with the discharge chute in the inside of multistage stepped polishing plate, is provided with the feeding mechanism on polishing shell, and is provided with the cradle mechanism on polishing shell and feeding mechanism. The utility model discloses through placing the polishing box on the high low arc track, makes the linkage rod drive polishing box sway like cradle, is equipped with multistage step grinding plate, and when grain rolls down with sway, each surface can contact the grinding surface of different roughness, effectively solves the problem of grain leakage.

Description

Technical Field

[0001] This utility model relates to the field of grain polishing technology, and more specifically, to a grain polishing machine based on multi-stage friction. Background Technology

[0002] After being hulled, paddy rice becomes brown rice. Brown rice, after having most of its bran and part of its germ removed, becomes white rice. The surface of white rice grains still has a small amount of bran powder, which affects the appearance, storage quality, and taste of the cooked rice. Therefore, it is necessary to remove this bran powder through a "polishing" process. Polishing is one of the key processes in clean rice processing. Because polishing can remove the bran powder from the surface of the rice grains, it can make the surface of the rice grains have a certain gloss, resulting in a better appearance and increased commercial value.

[0003] Common multi-stage friction grain polishing machines can only grind and polish grains, but it is difficult to polish a large amount of grains completely. In the actual processing, the grains will come into contact with each other in the grinding space. As a result, a large part of the grain surface will not come into contact with the grinding surface due to the contact between the grains, which will ultimately reduce the polishing effect.

[0004] In summary, to achieve a polishing effect on grains, it is necessary to address the issue of some grain surfaces not being polished. This requires spreading the grains out fully in the polishing space and shaking them to ensure thorough polishing. Utility Model Content

[0005] The problem to be solved by the grain polishing machine based on multi-stage friction provided by this utility model is that a large part of the grain surface does not come into contact with the polishing surface due to the contact between grains.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a grain polishing machine based on multi-stage friction, comprising a polishing shell, two supporting arc frames of different heights installed on the inner side of the polishing shell, a polishing shaking box arranged between the two supporting arc frames, a first sliding block installed on the surface of the polishing shaking box, a second sliding block installed on the surface of the polishing shaking box, the first sliding block and the second sliding block being slidably connected to the two supporting arc frames of different heights respectively, a multi-stage stepped polishing plate installed inside the polishing shaking box, a discharge groove opened inside the multi-stage stepped polishing plate, a feeding mechanism arranged on the polishing shell, and a cradle mechanism arranged on the polishing shell and the feeding mechanism.

[0007] In a preferred embodiment, the feeding mechanism is used to transport grain into the polishing shaker. The feeding mechanism includes a drive component and a screw component. The output end of the drive component is connected to the screw component. The drive component is used to control the rotational movement of the screw component. The screw component is used to transport grain into the polishing shaker and perform the first coarse polishing.

[0008] In a preferred embodiment, the drive assembly includes a motor mounted on the surface of the polished housing, a drive shaft mounted on the output end of the motor, and a connecting rod mounted on the end of the drive shaft away from the motor. The motor is used to control the rotational movement of the drive shaft.

[0009] In a preferred embodiment, the spiral assembly includes a spiral feed blade mounted on the outside of the drive shaft and a spiral polishing block mounted on the outside of the drive shaft.

[0010] In a preferred embodiment, the input end of the cradle mechanism is connected to the drive component. The cradle mechanism is used to shake the polishing cradle. The cradle mechanism includes a transmission component and a linkage component. The output end of the transmission component is connected to the linkage component. The transmission component is used to transmit the rotational force of the drive component to the linkage component. The output end of the linkage component is connected to the second sliding block. The linkage component is used to control the sliding of the second sliding block.

[0011] In a preferred embodiment, the transmission assembly includes a drive block mounted on the outside of the connecting rod, a vertical transmission rod rotatably connected to the surface of the drive block, a first connecting rod rotatably connected to the end of the vertical transmission rod away from the drive block, and a transverse transmission rod rotatably connected to the end of the first connecting rod away from the vertical transmission rod. The transverse transmission rod is rotatably connected to the polishing housing.

[0012] In a preferred embodiment, the linkage assembly includes a second linkage member rotatably connected to the end of the transverse transmission rod away from the first linkage member, a first linkage rod rotatably connected to the end of the second linkage member away from the transverse transmission rod, a second linkage rod rotatably connected to the end of the second linkage member away from the transverse transmission rod, a third linkage rod rotatably connected to the end of the first linkage rod away from the second linkage member, a fourth linkage rod rotatably connected to the end of the second linkage rod away from the second linkage member, a first limiting rod rotatably connected to the inner side of the polishing housing, and a second limiting rod rotatably connected to the inner side of the polishing housing. The first limiting rod is rotatably connected to the third linkage rod, the second limiting rod is rotatably connected to the second linkage rod, the end of the third linkage rod away from the first linkage rod is rotatably connected to the second sliding block, and the end of the fourth linkage rod away from the second linkage rod is rotatably connected to the second sliding block.

[0013] In a preferred embodiment, a feeding groove is provided at the upper end of the polishing shell, a feeding guide frame is installed on the inner side of the polishing shell, and a feeding port is provided at the upper end of the polishing shell.

[0014] The beneficial effects of this utility model are as follows:

[0015] This invention places the polishing box on two arc-shaped tracks of different heights, causing the linkage structure to drive the polishing box to sway back and forth like a cradle. At the same time, the inside of the box is designed with multi-stage stepped grinding plates. After the grain is fed in, it rolls and falls down the steps as the box shakes, ensuring that each side can fully contact the grinding surfaces of different roughness. It can take into account everything from coarse grinding to fine polishing, solving the problem of traditional methods where grain is squeezed together and some surfaces are not ground. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the overall cross-sectional structure of this utility model.

[0018] Figure 3 This is a schematic diagram of the cross-sectional structure of the polished outer shell of this utility model.

[0019] Figure 4 This is a schematic diagram of the multi-stage grinding component of this utility model.

[0020] Figure 5 This is a cross-sectional schematic diagram of the feeding mechanism of this utility model.

[0021] Figure 6 This is a schematic cross-sectional view of the polishing shaker of this utility model.

[0022] Figure 7 This is a schematic diagram of the cradle mechanism of this utility model.

[0023] The attached figures are labeled as follows: 1. Polishing shell; 11. Supporting arc frame; 12. Polishing shaker box; 13. First sliding block; 14. Second sliding block; 15. Multi-stage stepped polishing plate; 16. Discharge chute; 17. Feeding chute; 18. Feeding guide frame; 19. Feed inlet; 211. Motor; 212. Drive shaft; 213. Connecting rod; 221. Spiral feed blade; 222. Spiral polishing block; 311. Drive block; 312. Vertical transmission rod; 313. First connecting rod; 314. Horizontal transmission rod; 321. Second connecting rod; 322. First linkage rod; 323. Second linkage rod; 324. Third linkage rod; 325. Fourth linkage rod; 326. First limiting rod; 327. Second limiting rod. Detailed Implementation

[0024] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0025] Refer to the instruction manual appendix Figures 1 to 7 A grain polishing machine based on multi-stage friction includes a polishing shell 1. Two support arc frames 11 of different heights are installed on the inner side of the polishing shell 1. A polishing shaker 12 is arranged between the two support arc frames 11. A first sliding block 13 and a second sliding block 14 are installed on the surface of the polishing shaker 12. The first sliding block 13 and the second sliding block 14 are slidably connected to the two support arc frames 11 of different heights, respectively. A multi-stage stepped polishing plate 15 is installed inside the polishing shaker 12. A discharge groove 16 is opened inside the multi-stage stepped polishing plate 15. A feeding mechanism is provided on the polishing shell 1. A cradle mechanism is provided on the polishing shell 1 and the feeding mechanism.

[0026] It should be noted that the two support arc frames 11 of different heights form an inclined support track, which causes the polishing shaker box 12 to oscillate periodically when sliding. The multi-stage stepped polishing plates 15 are distributed in a stepped manner, with the height of each polishing surface increasing and the surface roughness decreasing step by step, realizing the progressive processing of grain from coarse grinding to fine polishing. The discharge trough 16 is opened at the last polishing plate to ensure that the grain falls in an orderly manner after polishing.

[0027] It is worth noting that the first sliding block 13 is slidably connected to the high-position support arc frame 11, and the second sliding block 14 is slidably connected to the low-position support arc frame 11, so that the polishing cradle 12 shakes under the drive of the cradle mechanism, forcing the grain to roll on the surface of the stepped plate, thus solving the problem of polishing dead corners caused by grain accumulation.

[0028] Refer to the instruction manual appendix Figures 1 to 5 The feeding mechanism is used to transport grain into the polishing shaker 12. The feeding mechanism includes a drive component and a screw component. The output end of the drive component is connected to the screw component. The drive component is used to control the rotation of the screw component. The screw component is used to transport grain into the polishing shaker 12 and perform the first coarse polishing.

[0029] It should be noted that the drive assembly is powered by the motor 211, and the spiral assembly uses rotational motion to push the grain from the feed port 19 into the polishing shaker 12. At the same time, the spiral polishing block 222 performs preliminary friction on the surface of the grain during the feeding process to achieve pre-polishing.

[0030] Refer to the instruction manual appendix Figures 2 to 5 The drive assembly includes a motor 211 mounted on the surface of the polished housing 1, a drive shaft 212 mounted on the output end of the motor 211, and a connecting rod 213 mounted on the end of the drive shaft 212 away from the motor 211. The motor 211 is used to control the rotational movement of the drive shaft 212.

[0031] It should be noted that the connecting rod 213 extends into the polished housing 1 to synchronously transmit power to the cradle mechanism, realizing a single power drive dual system.

[0032] Refer to the instruction manual appendix Figure 5 The spiral assembly includes a spiral feed blade 221 mounted on the outside of the drive shaft 212 and a spiral polishing block 222 mounted on the outside of the drive shaft 212.

[0033] It should be noted that the spiral feed blade 221 is located at the feed end and is responsible for transporting the grain. The spiral polishing block 222 has wear-resistant abrasive particles embedded on its surface. When the grain is pushed forward, it completes coarse polishing through rotational friction.

[0034] Refer to the instruction manual appendix Figures 2 to 7 The input end of the cradle mechanism is connected to the drive component. The cradle mechanism is used to shake the polishing cradle box 12. The cradle mechanism includes a transmission component and a linkage component. The output end of the transmission component is connected to the linkage component. The transmission component is used to transmit the rotational force of the drive component to the linkage component. The output end of the linkage component is connected to the second sliding block 14. The linkage component is used to control the sliding of the second sliding block 14.

[0035] It should be noted that the transmission assembly converts the rotational motion of the drive shaft 212 into reciprocating oscillation, and the linkage assembly pushes the polishing sway box 12 to slide along the support arc frame 11 through the second sliding block 14, generating swaying.

[0036] It is worth noting that the cradle mechanism reuses the power of the feeding mechanism, requiring no additional energy, and the swing amplitude is adjustable to adapt to the polishing needs of different grain varieties.

[0037] Refer to the instruction manual appendix Figures 4 to 7 The transmission assembly includes a drive block 311 mounted on the outside of the connecting rod 213, a vertical transmission rod 312 rotatably connected to the surface of the drive block 311, a first connecting rod 313 rotatably connected to the end of the vertical transmission rod 312 away from the drive block 311, and a transverse transmission rod 314 rotatably connected to the end of the first connecting rod 313 away from the vertical transmission rod 312. The transverse transmission rod 314 is rotatably connected to the polished housing 1.

[0038] It should be noted that the drive block 311 is eccentrically mounted on the connecting rod 213, which converts the rotational motion into the up-and-down reciprocating motion of the vertical transmission rod 312, and then drives the horizontal transmission rod 314 to perform reciprocating rotational motion through the first connecting rod 313.

[0039] Refer to the instruction manual appendix Figure 7The linkage assembly includes a second link 321 rotatably connected to the end of the transverse transmission rod 314 away from the first link 313; a first linkage rod 322 rotatably connected to the end of the second link 321 away from the transverse transmission rod 314; a second linkage rod 323 rotatably connected to the end of the second link 321 away from the transverse transmission rod 314; a third linkage rod 324 rotatably connected to the end of the first linkage rod 322 away from the second link 321; and a third linkage rod 324 rotatably connected to the end of the second linkage rod 323 away from the second link 313. The fourth linkage rod 325 at one end is rotatably connected to the first limiting rod 326 and the second limiting rod 327 rotatably connected to the inner side of the polishing housing 1. The first limiting rod 326 is rotatably connected to the third linkage rod 324, the second limiting rod 327 is rotatably connected to the second linkage rod 323, the end of the third linkage rod 324 away from the first linkage rod 322 is rotatably connected to the second sliding block 14, and the end of the fourth linkage rod 325 away from the second linkage rod 323 is rotatably connected to the second sliding block 14.

[0040] It should be noted that the second connecting rod 321 decomposes the rotational motion of the transverse transmission rod 314 into the first connecting rod 322 and the second connecting rod 323, and then forms a quadrilateral structure through the third connecting rod 324 and the fourth connecting rod 325, so that the second sliding block 14 slides along a fixed trajectory. The first limiting rod 326 and the second limiting rod 327 constrain the range of motion of all connecting rods to prevent overload damage. The multi-rod linkage design amplifies the swing amplitude and ensures that the polishing rocker box 12 swings fully.

[0041] Refer to the instruction manual appendix Figure 3 The upper end of the polishing shell 1 is provided with a feeding groove 17, the inner side of the polishing shell 1 is provided with a feeding guide frame 18, and the upper end of the polishing shell 1 is provided with a feeding port 19.

[0042] It should be noted that the feeding guide frame 18 is installed at an angle below the feeding trough 17 to guide the grain into the interior of the polishing shaker 12, while the feed inlet 19 allows the grain to enter the inner cavity of the polishing shell 1 and is conveyed towards the feeding trough 17 by the spiral assembly.

[0043] Working principle: Grain enters the polishing shell 1 through the feed inlet 19. The motor 211 drives the drive shaft 212 to rotate, which in turn drives the spiral feed blade 221 and spiral polishing block 222 installed on the outside of the drive shaft 212 to rotate. The spiral feed blade 221 pushes the grain along the feed guide frame 18 through the feed trough 17 into the polishing shaker box 12. At the same time, the spiral polishing block 222 performs the first rough polishing on the surface of the grain. The connecting rod 213 at the end of the drive shaft 212 synchronously drives the drive block 311 installed on its outside to rotate. The drive block 311 pulls the first connecting rod 313 through the vertical transmission rod 312 rotatably connected to it, causing the horizontal transmission rod 314 rotatably connected to the first connecting rod 313 to reciprocate. The horizontal transmission rod 314 drives the second connecting rod 321 rotatably connected to it to reciprocate in a fan shape. The second connecting rod 321 drives the first linkage rod 322 rotatably connected to it. The second linkage rod 323 moves, and then forms a compound linkage motion through the third linkage rod 324 rotatably connected to the end of the first linkage rod 322 and the fourth linkage rod 325 rotatably connected to the end of the second linkage rod 323. The ends of the third linkage rod 324 and the fourth linkage rod 325 are respectively rotatably connected to the second sliding block 14 and push it to move, so that the second sliding block 14 slides along the lower support arc frame 11. At the same time, the first sliding block 13 on the polishing shaker 12 slides along the higher support arc frame 11. The two support arc frames 11 with different heights force the polishing shaker 12 to produce a periodic shaking motion, so that the grain continuously rolls on the surface of the multi-stage stepped polishing plate 15 installed inside the polishing shaker 12. The grain moves step by step from the high-roughness primary step to the low-roughness final step, realizing progressive fine polishing. Finally, the polished grain is discharged in an orderly manner through the discharge chute 16.

[0044] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A grain polishing machine based on multi-stage friction, characterized in that: The polishing shell (1) includes a polishing shell (1), two support arc frames (11) of different heights are installed on the inner side of the polishing shell (1), a polishing cradle (12) is provided between the two support arc frames (11), a first sliding block (13) is installed on the surface of the polishing cradle (12), a second sliding block (14) is installed on the surface of the polishing cradle (12), the first sliding block (13) and the second sliding block (14) are slidably connected to the two support arc frames (11) of different heights respectively, a multi-level stepped polishing plate (15) is installed inside the polishing cradle (12), a discharge groove (16) is opened inside the multi-level stepped polishing plate (15), a feeding mechanism is provided on the polishing shell (1), and a cradle mechanism is provided on the polishing shell (1) and the feeding mechanism.

2. The grain polishing machine based on multi-stage friction according to claim 1, characterized in that: The feeding mechanism is used to transport grain into the polishing shaker (12). The feeding mechanism includes a drive component and a screw component. The output end of the drive component is connected to the screw component. The drive component is used to control the rotation of the screw component. The screw component is used to transport grain into the polishing shaker (12) and perform the first coarse polishing.

3. The grain polishing machine based on multi-stage friction according to claim 2, characterized in that: The drive assembly includes a motor (211) mounted on the surface of the polished housing (1), a drive shaft (212) mounted on the output end of the motor (211), and a connecting rod (213) mounted on the end of the drive shaft (212) away from the motor (211). The motor (211) is used to control the rotational movement of the drive shaft (212).

4. The grain polishing machine based on multi-stage friction according to claim 3, characterized in that: The spiral assembly includes a spiral feed blade (221) mounted on the outside of the drive shaft (212) and a spiral polishing block (222) mounted on the outside of the drive shaft (212).

5. The grain polishing machine based on multi-stage friction according to claim 4, characterized in that: The input end of the cradle mechanism is connected to the drive component. The cradle mechanism is used to shake the polishing cradle (12). The cradle mechanism includes a transmission component and a linkage component. The output end of the transmission component is connected to the linkage component. The transmission component is used to transmit the rotational force of the drive component to the linkage component. The output end of the linkage component is connected to the second sliding block (14). The linkage component is used to control the sliding of the second sliding block (14).

6. The grain polishing machine based on multi-stage friction according to claim 5, characterized in that: The transmission assembly includes a drive block (311) mounted on the outside of the connecting rod (213), a vertical transmission rod (312) rotatably connected to the surface of the drive block (311), a first connecting rod (313) rotatably connected to the end of the vertical transmission rod (312) away from the drive block (311), and a transverse transmission rod (314) rotatably connected to the end of the first connecting rod (313) away from the vertical transmission rod (312). The transverse transmission rod (314) is rotatably connected to the polished housing (1).

7. The grain polishing machine based on multi-stage friction according to claim 6, characterized in that: The linkage assembly includes a second link (321) fixedly connected to the end of the transverse transmission rod (314) away from the first link (313); a first linkage rod (322) rotatably connected to the end of the second link (321) away from the transverse transmission rod (314); a second linkage rod (323) rotatably connected to the end of the second link (321) away from the transverse transmission rod (314); a third linkage rod (324) rotatably connected to the end of the first linkage rod (322) away from the second link (321); and a third linkage rod (324) rotatably connected to the end of the second linkage rod (323) away from the second link (321). The fourth linkage rod (325) at one end is rotatably connected to the first limiting rod (326) and the second limiting rod (327) rotatably connected to the inner side of the polishing shell (1). The first limiting rod (326) is rotatably connected to the third linkage rod (324), the second limiting rod (327) is rotatably connected to the second linkage rod (323), the end of the third linkage rod (324) away from the first linkage rod (322) is rotatably connected to the second sliding block (14), and the end of the fourth linkage rod (325) away from the second linkage rod (323) is rotatably connected to the second sliding block (14).

8. The grain polishing machine based on multi-stage friction according to claim 1, characterized in that: The upper end of the polishing shell (1) is provided with a feeding groove (17), the inner side of the polishing shell (1) is provided with a feeding guide frame (18), and the upper end of the polishing shell (1) is provided with a feeding port (19).

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