Feeding device for white rice grading and screening

Abstract

The utility model discloses a feeding device for white rice grading and screening. The feeding device comprises a rack, a lifting mechanism, a treading mechanism and a dust collection mechanism, and a groove is formed in the rack; the lifting mechanism is fixedly installed at a groove in the rack, the treading mechanism is rotatably installed at the top of an opening in one side of the lifting mechanism, the treading mechanism comprises a cover body rotatably arranged at the top of the hopper, and the cover body is used for shielding the opening in the top end of the hopper; the dust collection mechanism is arranged at one end of the rack and is used for adsorbing dust raised when the white rice is dumped. When the feeding device for rice grading and screening is used, when rice is poured into the hopper, feet are separated from the pedal plate, at the moment, under the gravity of the cover body, the cover body seals and covers the top end of the hopper, then the phenomenon that dust flies outwards is reduced, and meanwhile external pollutants are prevented from entering the hopper.

Description

Technical Field

[0001] The utility model relates to the technical field of white rice grading and screening, in particular to a feeding device for white rice grading and screening. Background Art

[0002] After the white rice is processed, it needs to be graded and screened to separate the white rice into good quality and poor quality. When grading and screening the white rice, the white rice needs to be lifted to the feeding port of the white rice grading and screening machine, which will reduce the quality and the working efficiency of the screening machine. Therefore, a feeding device for the white rice grading and screening machine is designed.

[0003] When the hopper of the existing white rice grading and screening feeding device is in an open state, some external debris may accidentally fall into the white rice, thereby causing the white rice to be impure and raising dust when the white rice is poured into the hopper, which pollutes the surrounding environment. Utility Model Content

[0004] The utility model aims to provide a feeding device for grading and screening white rice, so as to solve the problem of low dustproof effect of the device proposed in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a feeding device for grading and screening white rice, comprising: a frame, a lifting mechanism, a treading mechanism and a dust suction mechanism, the frame being provided with a groove; the lifting mechanism being fixedly mounted at the groove on the frame, the lifting mechanism comprising a hopper fixed at the groove on the top of the frame, a loading barrel connected to the bottom of the hopper and inclined, and a conveying assembly rotatably mounted inside the loading barrel, the lifting mechanism being used to convey the white rice upward; the treading mechanism being rotatably mounted at the top of an opening on one side of the lifting mechanism, the treading mechanism comprising a cover body rotatably mounted at the top of the hopper, the cover body being used to shield the opening at the top of the hopper; the dust suction mechanism being arranged at one end of the frame, the dust suction mechanism being used to absorb dust raised when the white rice is dumped.

[0006] Preferably, the lifting mechanism further comprises a discharge cylinder connected to a top position of an upper cylinder away from a hopper, and the discharge cylinder is located above an inlet of the white rice grading and screening machine.

[0007] Preferably, the conveying assembly includes an auger shaft rotating inside the upper barrel and a driving motor installed at the bottom of the upper barrel to drive the upper barrel to rotate.

[0008] Preferably, the pedaling mechanism also includes slide grooves opened at both ends of one side close to the frame, a foot pedal sliding on one side of the frame, and limit blocks fixed at both ends of the foot pedal, and the limit blocks extend outside the frame through the slide groove, and the limit blocks and the frame are slidably connected through the slide groove.

[0009] Preferably, the pedaling mechanism also includes a fixed wheel fixed on one side of the rotating foot pedal, a line limiting wheel fixed on one side of the loading barrel and the frame, and a pull rope connected to the top of the cover body, and the other end of the pull rope is fixedly connected around the line limiting wheel and the fixed wheel.

[0010] Preferably, the dust suction mechanism includes a fixed frame fixed at one end of the frame, a dust hood connected to the middle position of the top of the cover body, a pipe fixedly connecting the fixed frame and the dust hood, and a negative pressure fan installed on the fixed frame, and the input end of the negative pressure fan and the pipe are connected to each other, and a protective net is arranged inside the connection between the negative pressure fan and the pipe.

[0011] Preferably, the dust collection mechanism further comprises a dust hopper sliding in the fixed frame, a filter cloth fixed on the surface of the dust hopper and close to the high end of the ground, and a U-shaped handle is fixed on the surface of the dust hopper.

[0012] Compared with the prior art, the beneficial effects of the utility model are: first, when the white rice is poured into the hopper, the foot is separated from the foot pedal. At this time, under the weight of the cover, the cover body seals the top of the hopper, thereby reducing the phenomenon of dust flying outward and preventing external pollutants from entering the hopper; second, the negative pressure fan is started. After the negative pressure fan is started, negative pressure is formed in the pipeline. Under the action of negative pressure, the dust raised during the process of pouring the white rice into the hopper or when the white rice is transported upward is adsorbed, thereby reducing pollution to the surrounding environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0014] Figure 2 It is a side view structural diagram of the connection between the wire limiting wheel and the pull rope of the utility model;

[0015] Figure 3 For the utility model Figure 1 The enlarged structural diagram at A in the middle;

[0016] Figure 4 It is a schematic diagram of the side structure of the dust collection mechanism of the utility model.

[0017] In the figure: 1. frame; 2. lifting mechanism; 21. hopper; 22. upper barrel; 23. discharge barrel; 24. conveying assembly; 3. pedal mechanism; 31. cover body; 32. limit wheel; 33. pull rope; 34. fixed wheel; 35. foot pedal; 36. limit block; 37. slide; 4. dust suction mechanism; 41. fixed frame; 42. dust hood; 43. pipeline; 44. negative pressure fan; 45. filter cloth; 46. dust hopper. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] It should be noted that, in the description of the present invention, the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0020] Furthermore, it should be understood that for the sake of ease of description, the sizes of the various components shown in the drawings are not drawn according to actual proportions. For example, the thickness or width of certain layers may be exaggerated relative to other layers.

[0021] It should be noted that like reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined or described in one drawing, it will not require further detailed discussion and description in the description of the subsequent drawings.

[0022] See also Figure 1-4 The utility model provides an embodiment: a feeding device for grading and screening white rice, comprising: a frame 1, a lifting mechanism 2, a pedal mechanism 3 and a dust suction mechanism 4, the frame 1 is provided with a groove; the lifting mechanism 2 is fixedly installed at the groove on the frame 1, the lifting mechanism 2 comprises a hopper 21 fixed at the groove on the top of the frame 1, a feeding barrel 22 connected to the bottom of the hopper 21 and inclined, and a conveying assembly 24 rotatably installed inside the feeding barrel 22, the lifting mechanism 2 is used to convey the white rice upward; the conveying assembly 24 comprises an auger shaft rotating inside the feeding barrel 22 and a driving motor installed at the bottom of the feeding barrel 22 to drive the feeding barrel 22 to rotate. The discharge barrel 23 is located above the inlet of the white rice grading and screening machine, thereby ensuring that the white rice falls accurately into the white rice grading and screening machine. By conveying the white rice upward, there is no need for employees to lift the white rice upward to the inlet of the white rice grading and screening machine, thereby saving physical strength. After the white rice falls into the upper barrel 22, after the drive motor is started, the output shaft of the drive motor drives the auger shaft to rotate, and the white rice is lifted during the rotation of the auger shaft. The white rice moves to the highest point in the upper barrel 22 and then falls into the discharge barrel 23.

[0023] The pedal mechanism 3 is rotatably mounted on the top of the opening on one side of the lifting mechanism 2. The pedal mechanism 3 includes a cover body 31 that rotates on the top of the hopper 21. The cover body 31 is used to cover the top opening of the hopper 21, and the upper surface of the cover body 31 is equal to the size of the opening on the upper surface of the hopper 21. When the cover body 31 is in a horizontal state, the cover body 31 covers the upper surface of the hopper 21, thereby preventing dust from flying outward, and also preventing external pollutants from falling into the hopper 21 and mixing with the white rice; the pedal mechanism 3 also includes a slide groove 37 opened at both ends of one side close to the frame 1, a foot pedal 35 sliding on one side of the frame 1, and a limit block 36 fixed at both ends of the foot pedal 35, and the limit block 36 extends to the outside of the frame 1 through the slide groove 37, and the limit block 36 and the frame 1 are slidably connected through the slide groove 37. In addition, the pedal mechanism 3 also includes a fixed wheel 34 fixed on one side of the pedal 35, a limiting wheel 32 fixed on one side of the upper barrel 22 and the frame 1, and a pull rope 33 connected to the top of the cover 31, and the other end of the pull rope 33 is fixedly connected around the limiting wheel 32 and the fixed wheel 34. The limiting wheel 32 limits the pull rope 33. The pedal 35 is limited on one side of the frame 1 under the cooperation of the limiting block 36 and the slide 37, so that the pedal 35 can only move up and down, that is, after the upper surface of the limiting block 36 and the upper surface of the slide 37 are attached, the cover 31 is in a horizontal state, and after the lower surface of the limiting block 36 and the lower surface of the slide 37 are in contact, the cover 31 is in an inclined state, and the upper surface of the hopper 21 is in an open state at this time, so as to facilitate operation.

[0024] The dust collecting mechanism 4 is arranged at one end of the frame 1, and the dust collecting mechanism 4 is used to absorb the dust raised when the white rice is dumped. The dust collecting mechanism 4 includes a fixed frame 41 fixed at one end of the frame 1, a dust collecting hood 42 connected to the middle position of the top of the cover body 31, a pipe 43 fixedly connecting the fixed frame 41 and the dust collecting hood 42, and a negative pressure fan 44 installed on the fixed frame 41, and the input end of the negative pressure fan 44 and the pipe 43 are connected to each other, and a protective net is arranged inside the connection between the negative pressure fan 44 and the pipe 43. Among them, the protective net prevents dust from entering the negative pressure fan 44. After the negative pressure fan 44 is started, a negative pressure is formed in the pipe 43 and the dust collecting hood 42. Under the action of the negative pressure, the raised dust can be adsorbed and processed, thereby reducing dust pollution to the environment; in addition, the dust collecting mechanism 4 also includes a dust hopper 46 sliding in the fixed frame 41, a filter cloth 45 fixed on the surface of the dust hopper 46 and close to the high end of the ground, and a U-shaped handle is fixed on the surface of the dust hopper 46. The dust falling through the pipe 43 falls directly into the dust hopper 46, and the dust is collected by the dust hopper 46 for centralized treatment. The adsorbed gas can be discharged by the filter cloth 45, and the handle on the surface of the dust hopper 46 can be used to pull the dust hopper 46 out of the fixed frame 41.

[0025] Working principle: When in use, first, before pouring the white rice into the hopper 21, step on the foot pedal 35, pull the cover 31 through the pull rope 33, open the hopper 21, and start the negative pressure fan 44. After the negative pressure fan 44 is started, negative pressure exists in the pipeline 43, and the dust raised in the process of pouring the white rice into the hopper 21 is adsorbed, and the adsorbed dust falls into the dust hopper 46. After the white rice is poured into the hopper 21, the foot leaves the foot pedal 35. At this time, the cover 31 blocks the upper surface of the hopper 21 under the action of gravity, and the conveying component 24 is opened to convey the white rice in the hopper 21 to the discharge barrel 23, and then the discharge barrel 23 pours the white rice into the white rice grading and screening machine.

[0026] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A feeding device for white rice grading and screening, characterized in that: include: A frame (1), wherein a groove is formed on the frame (1); A lifting mechanism (2), the lifting mechanism (2) being fixedly mounted on a groove on the frame (1), the lifting mechanism (2) comprising a hopper (21) fixed on the groove on the top of the frame (1), an upper material cylinder (22) connected to the bottom of the hopper (21) and in an inclined shape, and a conveying assembly (24) rotatably mounted inside the upper material cylinder (22), the lifting mechanism (2) being used to convey the white rice upwards; A pedal mechanism (3), the pedal mechanism (3) being rotatably mounted on the top of an opening on one side of the lifting mechanism (2), the pedal mechanism (3) comprising a cover body (31) rotatably mounted on the top of the hopper (21), the cover body (31) being used to cover the top opening of the hopper (21); A dust suction mechanism (4) is arranged at one end of the frame (1), and is used to absorb dust raised when white rice is poured.

2. A feeding device for white rice grading and screening according to claim 1, characterized in that: The lifting mechanism (2) further comprises a discharge cylinder (23) connected to the top position of the upper cylinder (22) away from the hopper (21), and the discharge cylinder (23) is located above the inlet of the white rice grading and screening machine.

3. A feeding device for white rice grading and screening according to claim 1, characterized in that: The conveying assembly (24) comprises an auger shaft rotating inside the upper barrel (22) and a driving motor installed at the bottom of the upper barrel (22) for driving the upper barrel (22) to rotate.

4. A feeding device for white rice grading and screening according to claim 1, characterized in that: The pedal mechanism (3) further comprises a slide groove (37) provided at two ends of a side close to the frame (1), a foot pedal (35) sliding on one side of the frame (1), and a limit block (36) fixed at two ends of the foot pedal (35), wherein the limit block (36) extends outside the frame (1) through the slide groove (37), and the limit block (36) and the frame (1) are slidably connected through the slide groove (37).

5. A feeding device for white rice grading and screening according to claim 4, characterized in that: The pedal mechanism (3) further comprises a fixed wheel (34) fixed to one side of the rotating foot pedal (35), a limiting wheel (32) fixed to one side of the loading barrel (22) and the frame (1), and a pull rope (33) connected to the top of the cover body (31), and the other end of the pull rope (33) is fixedly connected around the limiting wheel (32) and the fixed wheel (34).

6. A feeding device for white rice grading and screening according to claim 1, characterized in that: The dust collection mechanism (4) comprises a fixed frame (41) fixed to one end of the frame (1), a dust collection hood (42) connected to the middle position of the top of the cover body (31), a pipeline (43) fixedly connecting the fixed frame (41) and the dust collection hood (42), and a negative pressure fan (44) installed on the fixed frame (41), wherein the input end of the negative pressure fan (44) and the pipeline (43) are connected to each other, and a protective net is arranged inside the connection between the negative pressure fan (44) and the pipeline (43).

7. A feeding device for white rice grading and screening according to claim 6, characterized in that: The dust collecting mechanism (4) further comprises a dust hopper (46) sliding in the fixing frame (41), a filter cloth (45) fixed on the surface of the dust hopper (46) and close to the upper end of the ground, and a U-shaped handle fixed on the surface of the dust hopper (46).

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