Screening equipment for grain processing

Abstract

The utility model relates to the technical field of grain processing, in particular to screening equipment for grain processing. The screening equipment for grain processing comprises a screening barrel, a first chain wheel is arranged on the right side of the screening barrel, a second chain wheel is placed below the first chain wheel, a chain is meshed with the outer side of the first chain wheel and the outer side of the second chain wheel, and a reciprocating lead screw is arranged on the left side of the second chain wheel. A reciprocating sliding block is in threaded connection with the outer side wall of the reciprocating lead screw, a motor is arranged on the left side of the reciprocating lead screw, a first sliding groove is formed in the left side of the reciprocating sliding block in a penetrating mode, a protection plate is arranged in the first sliding groove, and a supporting frame is arranged at the top of the reciprocating sliding block; the supporting frame is driven by the motor to reciprocate left and right in the screening barrel, the screening barrel is driven to rotate, and grains can be uniformly distributed in the screening barrel by moving the supporting frame left and right to be matched with the conveyor, so that the grain screening efficiency of the screening barrel is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of grain processing, in particular to screening equipment for grain processing. BACKGROUND

[0002] Grain is the main source of human body heat, the world's major grain has rice, wheat, rye, sorghum, corn and millet, and grain processing refers to the operating activities of converting raw grain into semi-finished grain, finished grain, or converting semi-finished grain into finished grain. With the improvement of people's requirements for food, the quality of grain is more concerned by people. The grain needs to be screened by using a screening device during processing to screen out the broken grain, so as to ensure the quality of the grain.

[0003] The existing screening equipment for grain processing is mostly through the vibration screen to make the debris fall from the holes of the screen, but when the grain is poured on the vibration screen, the speed of pouring the grain needs to be controlled manually, and when the pouring speed is too fast, the grain accumulated on the vibration screen is too much, so that the vibration screen cannot fully screen the grain accumulated on the screen, thereby affecting the screening quality. In view of the above situation, technical innovation is made on the basis of the existing screening equipment for grain processing. UTILITY MODEL CONTENT

[0004] The utility model aims at providing screening equipment for grain processing to solve the problems in the background art.

[0005] To achieve the above object, the utility model provides the following technical scheme: screening equipment for grain processing, comprising:

[0006] The screening barrel is provided with a first sprocket on the right side, a second sprocket is placed below the first sprocket, a chain is engaged on the outer side of the first sprocket and the second sprocket, a reciprocating screw rod is arranged on the left side of the second sprocket, a reciprocating sliding block is screwed on the outer side wall of the reciprocating screw rod, a motor is arranged on the left side of the reciprocating screw rod, a first sliding groove is formed on the left side of the reciprocating sliding block, a guard plate is arranged in the first sliding groove, a supporting frame is arranged on the top of the reciprocating sliding block, an installation groove is formed on the right side of the supporting frame, a conveyor is arranged in the installation groove, a storage box is connected and arranged on the top of the supporting frame, a feeding hopper is arranged at the bottom of the storage box, a discharge port is formed on the right side of the feeding hopper, and the bottom of the feeding hopper is attached to the top of the conveyor.

[0007] Preferably, two groups of limiting rings are uniformly arranged on the outer ring of the screening barrel, and two annular support seats are uniformly placed on the outer ring of the screening barrel, an annular groove is formed in the inner side wall of the annular support seat, and the limiting ring is arranged in the annular groove.

[0008] Preferably, the right side of the annular support seat is provided with an avoiding slot, a guide rail is arranged in the avoiding slot, a second sliding slot is arranged on the top left side of the guide rail, a reciprocating screw rod is arranged in the second sliding slot, the guard plate is fixedly arranged in the second sliding slot and is above the reciprocating screw rod, and the reciprocating sliding block is slidingly arranged in the second sliding slot.

[0009] Preferably, the motor is arranged on the left side of the guide rail, the output end of the motor is connected with the reciprocating screw rod through the left side of the guide rail, and the right side of the reciprocating screw rod is connected with the second chain wheel through the right side of the guide rail.

[0010] Preferably, the top right side of the guide rail is provided with a discharging slot, the discharging slot is below the screening barrel, the left side of the screening barrel is provided with a through hole, and the right side of the support frame is arranged in the through hole.

[0011] Preferably, the top of the screening barrel is provided with a discharging port, the discharging port is arranged with a sealing plate, two groups of fixing ears are uniformly arranged on the top of the sealing plate, bolts are arranged in the fixing ears, two groups of threaded holes are uniformly arranged on the top of the screening barrel, and the bolts are screwed with the threaded holes.

[0012] Compared with the prior art, the device has the following beneficial effects:

[0013] The device drives the support frame to move back and forth in the screening barrel through the motor, drives the screening barrel to rotate, and uniformly distributes the grain in the screening barrel through cooperation of the support frame and the conveyor, so that the screening efficiency of the screening barrel is improved.

[0014] The reciprocating screw rod is protected by the guard plate, so that when the grain is poured into the storage box, part of the grain slides from the outside of the storage box to the guide rail and contacts the reciprocating screw rod, the reciprocating screw rod drives the reciprocating sliding block to move stably, and the use reliability of the device is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structural schematic view of the grain processing screening device of the utility model;

[0016] Figure 2 It is a front view of the grain processing screening device of the utility model;

[0017] Figure 3 It is an enlarged view of A of the utility model Figure 2

[0018] ​In the figure: 1, guide rail; 11, motor; 12, guard plate; 13, discharge chute; 14, reciprocating sliding block; 141, reciprocating screw rod; 15, support frame; 151, conveyor; 152, feeding hopper; 153, discharge port; 16, storage box; 17, screening bucket; 18, first sprocket; 19, second sprocket; 2, chain; 21, annular support seat; 211, limiting ring; 22, sealing plate; 23, fixing lug; 24, bolt. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0020] Please refer to Figures 1-3, the grain processing is with screening equipment, including screening bucket 17, the right side of screening bucket 17 is fixedly provided with first sprocket 18, the lower portion of first sprocket 18 is placed with second sprocket 19, the outer side of first sprocket 18 and second sprocket 19 is engaged with chain 2, the left side of second sprocket 19 is fixedly provided with reciprocating screw rod 141, the outer side wall of reciprocating screw rod 141 is screwed with reciprocating sliding block 14, the left side of reciprocating screw rod 141 is fixedly provided with motor 11, reciprocating screw rod 141 is driven to rotate by motor 11, reciprocating sliding block 14 is driven to reciprocate left and right by reciprocating screw rod 141, and second sprocket 19 is driven to rotate, second sprocket 19 drives first sprocket 18 to rotate through chain 2, and screening bucket 17 is driven to rotate through first sprocket 18, first sliding groove is formed in the left side of reciprocating sliding block 14, guard plate 12 is slidably arranged in first sliding groove, support frame 15 is fixedly arranged on the top of reciprocating sliding block 14, mounting groove is formed in the right side of support frame 15, conveyor 151 is fixedly arranged in mounting groove, storage tank 16 is fixedly arranged on the top of support frame 15, inlet hopper 152 is fixedly arranged on the bottom of storage tank 16, discharge port 153 is formed in the right side of inlet hopper 152, the bottom of inlet hopper 152 is attached to the top of conveyor 151, and the grain is poured into storage tank 16 and inlet hopper 152, when conveyor 151 starts to work, the grain in inlet hopper 152 is transported out along discharge port 153 and moves to the right and falls into screening bucket 17, discharge port is formed in the top of screening bucket 17, sealing plate 22 is arranged in discharge port, two groups of fixed ears 23 are uniformly fixedly arranged on the top of sealing plate 22, bolts 24 are rotatably arranged in fixed ears 23, two groups of threaded holes are uniformly formed in the top of screening bucket 17, and the threaded holes are screwed with bolts 24, when screening bucket 17 completes the screening of grain, bolts 24 are unscrewed, then sealing plate 22 and fixed ears 23 can be moved upward and separated from screening bucket 17, at this time, screening bucket 17 is rotated, so that the grain is discharged through discharge port.

[0021] The outer circle of the screening barrel 17 is uniformly provided with two groups of limiting rings 211, and the outer circle of the screening barrel 17 is uniformly provided with two annular support seats 21. The inner side wall of the annular support seat 21 is provided with an annular groove, and the limiting ring 211 is rotationally arranged in the annular groove. The annular support seat 21 and the limiting ring 211 support the screening barrel 17 to rotate in cooperation. The right side of the annular support seat 21 is provided with an avoiding groove, and the avoiding groove is fixedly provided with a guide rail 1. The top left side of the guide rail 1 is provided with a second sliding groove, and the second sliding groove is rotationally provided with a reciprocating screw rod 141. The guard plate 12 is fixedly arranged in the second sliding groove and located above the reciprocating screw rod 141. The reciprocating screw rod 141 is protected by the guard plate 12, so that when the grain is poured into the storage box 16, part of the grain slides from the outside of the storage box 16 into the guide rail 1 and contacts the reciprocating screw rod 141, which affects the stable movement of the reciprocating sliding block 14 driven by the reciprocating screw rod 141, thereby ensuring the use reliability of the device. The reciprocating sliding block 14 is slidingly arranged in the second sliding groove. The motor 11 is fixedly arranged on the left side of the guide rail 1. The output end of the motor 11 penetrates the left side of the guide rail 1 and is connected with the reciprocating screw rod 141. The right side of the reciprocating screw rod 141 penetrates the right side of the guide rail 1 and is connected with the second sprocket 19. The top right side of the guide rail 1 is provided with a discharge chute 13, and the discharge chute 13 is located below the screening barrel 17. The left side of the screening barrel 17 is provided with a through hole, and the right side of the support frame 15 is slidingly arranged in the through hole.

[0022] Working principle: pour the grain into the storage box 16 and the feeding hopper 152. When the conveyor 151 starts to work, the grain in the feeding hopper 152 will be transported out along the discharge port 153 and move to the right and fall into the screening barrel 17. The reciprocating screw rod 141 is driven to rotate by the motor 11. The reciprocating sliding block 14 is driven to slide left and right by the reciprocating screw rod 141, and the second sprocket 19 is driven to rotate. The first sprocket 18 is driven to rotate by the chain 2, and the screening barrel 17 is driven to rotate by the first sprocket 18. When the reciprocating sliding block 14 slides left and right, the support frame 15 moves left and right in the screening barrel 17, and the grain is uniformly distributed in the screening barrel 17 by cooperating with the conveyor 151, thereby improving the screening efficiency of the grain. When the screening barrel 17 rotates, the grain is rolled, thereby completing the screening work. The impurities screened out will fall into the discharge chute 13 through the screen holes of the screening barrel 17 and be discharged. When the screening barrel 17 completes the screening of the grain, the bolt 24 is unscrewed, and then the cover plate 22 and the fixing lug 23 are moved upward and separated from the screening barrel 17. At this time, the screening barrel 17 is rotated, so that the grain is discharged through the discharge port. The reciprocating screw rod 141 is protected by the guard plate 12, so that when the grain is poured into the storage box 16, part of the grain slides from the outside of the storage box 16 into the guide rail 1 and contacts the reciprocating screw rod 141, which affects the stable movement of the reciprocating sliding block 14 driven by the reciprocating screw rod 141, thereby ensuring the use reliability of the device.

Claims

1. A screening apparatus for grain processing, characterized in that The application relates to a screening barrel (17) provided with a first chain wheel (18) on the right side, a second chain wheel (19) arranged below the first chain wheel (18), a chain (2) engaged with the outer sides of the first chain wheel (18) and the second chain wheel (19), a reciprocating screw rod (141) arranged on the left side of the second chain wheel (19), a reciprocating sliding block (14) screwed on the outer side wall of the reciprocating screw rod (141), a motor (11) arranged on the left side of the reciprocating screw rod (141), a first sliding groove arranged on the left side of the reciprocating sliding block (14), a guard plate (12) arranged in the first sliding groove, a support frame (15) arranged on the top of the reciprocating sliding block (14), a mounting groove arranged on the right side of the support frame (15), a conveyor (151) arranged in the mounting groove, a storage box (16) arranged in communication with the top of the support frame (15), an inlet hopper (152) arranged on the bottom of the storage box (16), an outlet (153) arranged on the right side of the inlet hopper (152) in a penetrating mode, and the bottom of the inlet hopper (152) being attached to the top of the conveyor (151). Two groups of limiting rings (211) are uniformly arranged on the outer ring of the screening barrel (17), and two annular support seats (21) are uniformly arranged on the outer ring of the screening barrel (17).

2. The grain processing screening apparatus of claim 1, wherein: An avoiding groove is arranged on the right side of the annular support seat (21) in a penetrating mode, and a guide rail (1) is arranged in the avoiding groove.

3. The grain processing screening apparatus of claim 2, wherein: The motor (11) is arranged on the left side of the guide rail (1), the output end of the motor (11) is connected with the reciprocating screw rod (141) in a penetrating mode on the left side of the guide rail (1), and the right side of the reciprocating screw rod (141) is connected with the second chain wheel (19) in a penetrating mode on the right side of the guide rail (1).

4. The grain processing screening apparatus of claim 3, wherein: A discharging groove (13) is arranged on the top right side of the guide rail (1), the discharging groove (13) is arranged below the screening barrel (17), a through hole is arranged on the left side of the screening barrel (17) in a penetrating mode, and the right side of the support frame (15) is arranged in the through hole.

5. The grain processing screening apparatus of claim 3, wherein: A discharging opening is arranged on the top of the screening barrel (17) in a penetrating mode, a sealing plate (22) is arranged in the discharging opening, two groups of fixing ears (23) are uniformly arranged on the top of the sealing plate (22), bolts (24) are arranged in the fixing ears (23), two groups of threaded holes are uniformly arranged on the top of the screening barrel (17), and the bolts (24) are screwed with the threaded holes.

6. The grain processing screening apparatus of claim 1, wherein: ​

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