Rice cleaning sieve

Abstract

The utility model discloses an unhulled rice cleaning sieve, which belongs to the technical field of unhulled rice cleaning sieves, and comprises an inclined blanking support seat, the bottom end of the inclined blanking support seat is fixedly connected with two triangular brackets which are symmetrically arranged, and the two sides of the top end of the inclined blanking support seat are rotatably connected with rotating shafts through bearing seats; according to the rice cleaning sieve, when the rice cleaning sieve is used, rice materials needing to be screened and subjected to impurity cleaning can be placed in the feeding hopper in an inverted mode, the double-shaft motor is started, then the movable baffle moves back and forth on the feeding hopper in a drawing and inserting mode, and therefore the rice can be intermittently discharged on the sieve net; and through cooperation of the arrangement of a transmission groove, the screen can move back and forth through a U-shaped plate, so that falling rice is efficiently screened, the rice passing through screening can be discharged through a discharging port, and screened impurities and dust can fall down and be discharged through an inclined discharging supporting seat.

Description

Technical Field

[0001] The utility model belongs to the technical field of rice cleaning screens, and in particular relates to a rice cleaning screen. Background Art

[0002] The rice cleaning screen is a device used to clean rice. It is mainly used to remove impurities, brown rice, sand, straw and other impurities in rice to improve the quality and purity of rice. The cleaning screen usually adopts the vibration screening method to separate impurities and brown rice of different sizes and weights through different sieve hole sizes and vibration frequencies, so as to achieve the purpose of cleaning.

[0003] The rice cleaning sieve of the prior art has the following disadvantages when used:

[0004] On the one hand, the rice that needs to be screened and cleaned is generally poured into the feeding hopper of the rice cleaning screen equipment, but there is no intermittent feeding structure on the feeding hopper, which causes the rice to fall quickly and accumulate on the screening structure of the rice cleaning screen equipment, greatly reducing the efficiency of screening and cleaning impurities;

[0005] On the other hand, the rice cleaning screen equipment is generally welded by a frame, which makes it impossible to fold and store it when not in use, making subsequent transportation and storage inconvenient. Therefore, a rice cleaning screen is needed. Utility Model Content

[0006] The utility model aims to provide a rice cleaning sieve to solve the problems raised in the above background technology.

[0007] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a rice cleaning sieve,

[0008] It comprises an inclined downward material support seat, the bottom end of which is fixedly connected to two symmetrically arranged triangular brackets, both sides of the top end of the inclined downward material support seat are rotatably connected to a rotating shaft through a bearing seat, the two rotating shafts are fixedly connected to the same rotating frame at one end opposite to each other, the top end of the rotating frame is fixedly connected to the same feeding hopper through two inverted L-shaped plates, a U-shaped plate is slidably connected to the inner side wall of the rotating frame, an inclined baffle is fixedly connected to the inner wall of the U-shaped plate, one side of the inclined baffle is also provided with a discharge port opened on one side wall of the rotating frame, a screen is movably fitted on the bottom of the inclined baffle, and the screen is connected to the U-shaped plate through a convenient disassembly and assembly component;

[0009] It also includes a linkage structure and a support structure. The linkage structure is installed on the rotating frame and is connected to the feeding hopper and the U-shaped plate. The linkage structure can make the rice in the feeding hopper fall intermittently and can also realize the reciprocating forward and backward movement of the screen mesh in linkage.

[0010] The support structure is installed at the bottom end of the rotating frame and is connected to the top end of the downward material support seat. The support structure can be folded when the cleaning screen device is not in use, which is convenient for subsequent storage and transportation.

[0011] As a preferred embodiment, sliding seats with an I-shaped vertical section are fixedly connected to both side walls of the U-shaped plate, and the sliding seats are slidably connected to sliding grooves provided on the outer side of the rotating frame.

[0012] As a preferred embodiment, the convenient disassembly and assembly component includes insertion strips fixed to both side walls of the screen, the vertical cross-section of the insertion strips is an isosceles trapezoidal structure, and slots matching the insertion strips are provided on both side inner walls of the U-shaped plate. The length of the insertion strips is greater than the length of the screen, and hand screws are threadedly penetrated at positions on the insertion strips away from the feeding hopper, and one end of the hand screws after being locked is pressed against the inner wall of the slot.

[0013] As a preferred embodiment, the linkage structure includes a double-axis motor fixed on a rotating frame, the output shafts at both ends of the double-axis motor are respectively fixed with a turntable and an eccentric wheel, a transmission column is fixed at the top edge of the turntable, and a movable baffle is movably inserted on the feeding hopper.

[0014] As a preferred embodiment, one end of the movable baffle is movably fitted to the inner wall of the feeding hopper, and the other end extends to the outside of the feeding hopper, and is provided with a transmission channel that cooperates with the transmission column, and the eccentric wheel is movably overlapped in the transmission groove opened on the U-shaped plate.

[0015] As a preferred embodiment, the support structure includes a synchronization frame slidably connected to the two inclined surfaces at the top of the oblique downward material support seat, and the bottom end of the synchronization frame is fixedly connected to two symmetrically arranged moving seats, the vertical cross-sections of the moving seats are convex structures, and the moving seats are slidably connected to the moving grooves opened on the top inclined surfaces of the oblique downward material support seat, and support rods are hinged on both sides of the top of the synchronization frame, and the top ends of the support rods are hinged to the bottom end of the rotating frame.

[0016] As a preferred embodiment, a one-way screw is threadedly connected to one of the movable seats, both ends of the one-way screw are rotatably connected in the movable groove, one end of the one-way screw away from the rotating shaft extends to the outside of the oblique downward material support seat, and is fixedly connected to a hand wheel, and a hand-tightened nut threadedly connected to the outside of the one-way screw is provided between the hand wheel and the oblique downward material support seat.

[0017] Compared with the prior art, the rice cleaning sieve provided by the utility model has at least the following beneficial effects:

[0018] In the utility model, when the rice cleaning screen is used, the rice material to be screened and cleaned of impurities can be inverted into the feeding hopper, and the dual-axis motor can be started to make the movable baffle plate perform a reciprocating pumping and inserting movement on the feeding hopper, so that the rice can be intermittently dropped onto the screen. In addition, the rotation of the eccentric wheel, in conjunction with the setting of the transmission groove, allows the screen to reciprocate back and forth through the U-shaped plate, thereby realizing efficient screening of the fallen rice, and the screened rice can be discharged through the discharge port, and the screened impurities and dust can fall and be discharged through the inclined downward feeding support seat, without worrying about the rice piling up on the screen. The screen mesh affects the efficiency of screening and cleaning impurities and dust; in addition, when the rice cleaning screen is not in use, the hand-tightening nut can be loosened, and the one-way screw can be rotated by the hand wheel, so that the moving seat moves in the direction of the hand wheel, combined with the action of the synchronous frame and the two support rods, the rotating frame can be flipped downward and folded on the inclined downward material support seat, so as to facilitate its subsequent transportation and storage, and it is easy to use; finally, when the screen mesh needs to be replaced or disassembled for cleaning, the two hand-tightening screws can be loosened, and the screen mesh can be hand-held and pulled out in the direction away from the feeding hopper to achieve the purpose. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall three-dimensional first-view structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the overall three-dimensional second viewing angle structure of the utility model;

[0021] Figure 3 It is a schematic diagram of the three-dimensional structure of the utility model after the screen is pulled out.

[0022] In the figure: 1. oblique downward material support seat; 2. triangular bracket; 3. rotating shaft; 4. rotating frame; 41. feeding hopper; 5. U-shaped plate; 51. sliding seat; 52. inclined baffle; 53. discharge port; 6. screen; 61. insert; 62. hand screw; 63. slot; 7. linkage structure; 71. movable baffle; 72. transmission channel; 73. transmission column; 74. turntable; 75. dual-axis motor; 76. eccentric wheel; 77. transmission groove; 8. support structure; 81. moving seat; 82. synchronous frame; 83. support rod; 84. one-way screw; 85. hand wheel; 86. hand nut. DETAILED DESCRIPTION

[0023] The present invention will be further described below in conjunction with the embodiments.

[0024] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution of the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings of the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all of the embodiments. Based on the described embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0025] The following examples are used to illustrate the present invention, but cannot be used to limit the scope of protection of the present invention. The conditions in the examples can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.

[0026] Example

[0027] On the one hand, the rice to be screened and cleaned is generally poured into the feeding hopper 41 of the rice cleaning screen device, but the feeding hopper 41 is not provided with an intermittent feeding structure, which causes the rice to fall quickly and accumulate on the screening structure of the rice cleaning screen device, greatly reducing the efficiency of screening and cleaning impurities;

[0028] Secondly, the rice cleaning screen equipment is generally welded by the frame, which makes it impossible to fold and store it when not in use, making subsequent transportation and storage inconvenient;

[0029] To do this, see Figure 1-3 The utility model provides a rice cleaning sieve, comprising:

[0030] An inclined downward material support seat 1, the bottom end of which is fixedly connected with two symmetrically arranged triangular brackets 2, both sides of the top end of the inclined downward material support seat 1 are rotatably connected with rotating shafts 3 through bearing seats, the two rotating shafts 3 are fixedly connected with the same rotating frame 4 at one end opposite to each other, the top end of the rotating frame 4 is fixedly connected with the same feeding hopper 41 through two inverted L-shaped plates, a U-shaped plate 5 is slidably connected to the inner side wall of the rotating frame 4, an inclined baffle 52 is fixedly connected to the inner wall of the U-shaped plate 5, one side of the inclined baffle 52 is also provided with a discharge port 53 opened on one side wall of the rotating frame 4, a screen 6 is movably fitted on the bottom of the inclined baffle 52, and the screen 6 is connected to the U-shaped plate 5 through a convenient disassembly and assembly component;

[0031] The machine also includes a linkage structure 7 and a support structure 8. The linkage structure 7 is installed on the rotating frame 4 and is connected to the feeding hopper 41 and the U-shaped plate 5. The linkage structure 7 can make the rice in the feeding hopper 41 fall intermittently and can also realize the back and forth movement of the screen 6 in linkage.

[0032] The support structure 8 is installed at the bottom end of the rotating frame 4 and is connected to the top end of the downward material support seat 1. The support structure 8 can be folded when the cleaning screen device is not in use, which is convenient for subsequent storage and transportation.

[0033] The vertical section of the rotating frame 4 is an inverted L-shaped structure, the longitudinal vertical section obliquely toward the lower material support seat 1 is a U-shaped structure, and the transverse vertical section is a hockey stick-shaped structure. The inclined baffle 52 can discharge the rice after the impurities are screened out.

[0034] Further as Figure 1-3 As shown, it is worth to explain in detail that the two side walls of the U-shaped plate 5 are fixedly connected with sliding seats 51 with an I-shaped structure in vertical section, and the sliding seats 51 are slidably connected to the sliding grooves arranged on the outer side of the rotating frame 4.

[0035] The arrangement of the sliding seat 51 can ensure that the U-shaped plate 5 can move back and forth stably.

[0036] Further as Figure 1-3 As shown, it is worth specifically explaining that in order to facilitate the disassembly and assembly of the screen 6, a convenient disassembly and assembly component is provided, including insertion strips 61 fixed to both side walls of the screen 6, the vertical cross-section of the insertion strips 61 is an isosceles trapezoidal structure, and slots 63 matching the insertion strips 61 are provided on both side inner walls of the U-shaped plate 5. The length of the insertion strips 61 is greater than the length of the screen 6, and a hand screw 62 is threadedly penetrated at a position on the insertion strips 61 away from the feeding hopper 41, and one end of the hand screw 62 after being locked is pressed against the inner wall of the slot 63.

[0037] Further as Figure 1-3 As shown, it is worth explaining in detail that in order to allow the rice in the feeding hopper 41 to be intermittently dropped and to be able to realize the reciprocating forward and backward movement of the screen 6 for screening, a linkage structure 7 is set up, including a double-axis motor 75 fixedly connected to the rotating frame 4, and the output shafts at both ends of the double-axis motor 75 are respectively fixedly connected to a turntable 74 and an eccentric wheel 76, and a transmission column 73 is fixedly connected to the top edge of the turntable 74. A movable baffle 71 is movably inserted into the feeding hopper 41, and one end of the movable baffle 71 is movably fitted to the inner wall of the feeding hopper 41, and the other end extends to the outside of the feeding hopper 41, and a transmission channel 72 cooperating with the transmission column 73 is opened, and the eccentric wheel 76 is movably overlapped in the transmission groove 77 opened on the U-shaped plate 5.

[0038] Among them, the length of the transmission channel 72 is larger than the diameter of the turntable 74, the diameter of the transmission column 73 is equal to the width of the transmission channel 72, the diameter of the eccentric wheel 76 is equal to the width of the transmission groove 77, and the length of the transmission groove 77 is larger than the diameter of the eccentric wheel 76.

[0039] Further as Figure 1-3As shown, it is worth explaining in detail that in order to enable the rotating frame 4 to be folded or unfolded on the top of the inclined downward material support seat 1, an opening structure 8 is provided, which includes a synchronous frame 82 slidably connected to the two inclined surfaces at the top of the inclined downward material support seat 1, and the bottom end of the synchronous frame 82 is fixedly connected to two symmetrically arranged moving seats 81, the vertical cross-sections of the moving seats 81 are convex structures, and the moving seats 81 are slidably connected to the moving grooves opened on the top inclined surfaces of the inclined downward material support seat 1. The top sides of the synchronous frame 82 are hinged with support rods 83, and the tops of the support rods 83 are hinged to the bottom end of the rotating frame 4, and one of the moving seats 81 is threadedly connected with a one-way screw 84, and both ends of the one-way screw 84 are rotatably connected to the moving grooves, and the end of the one-way screw 84 away from the rotating shaft 3 extends to the outside of the inclined downward material support seat 1, and is fixedly connected to a hand wheel 85, and a hand-tightened nut 86 threadedly connected to the outside of the one-way screw 84 is provided between the hand wheel 85 and the inclined downward material support seat 1.

[0040] The synchronization frame 82 is a mouth-shaped plate, so that the falling impurities will not accumulate too much on the synchronization frame 82, and the locking setting of the hand-tightening nut 86 prevents the support rod 83 from loosening after supporting the rotating frame 4.

[0041] In summary, when the rice cleaning screen is used, the rice material to be screened and cleaned of impurities can be inverted into the feeding hopper 41, and the dual-axis motor 75 can be started to make the movable baffle 71 perform a reciprocating pumping motion on the feeding hopper 41, so that the rice can be intermittently discharged onto the screen 6. In addition, the rotation of the eccentric wheel 76, in conjunction with the setting of the transmission groove 77, allows the screen 6 to reciprocate back and forth through the U-shaped plate 5, thereby achieving efficient screening of the fallen rice. The screened rice can be discharged through the discharge port 53, and the screened impurities and dust can fall and be discharged through the oblique lower feeding support seat 1, without worrying about the accumulation of rice on the screen 6 and affecting the efficiency of screening and cleaning impurities and dust.

[0042] In addition, when the rice cleaning screen is not in use, the hand-tightening nut 86 can be loosened, and the one-way screw 84 can be rotated by the hand wheel 85, so that the movable seat 81 moves in the direction of the hand wheel 85, and the synchronous frame 82 and the two support rods 83 are combined to make the rotating frame 4 flip down and fold on the oblique downward material support seat 1, so as to facilitate the subsequent transportation and storage, and it is easy to use;

[0043] Finally, when the screen 6 needs to be replaced or disassembled for cleaning, the purpose can be achieved by loosening the two hand screws 62 and then pulling the screen 6 out in a direction away from the feeding hopper 41 by hand.

[0044] Unless otherwise defined, the technical or scientific terms used in the present invention shall have the usual meanings understood by persons with ordinary skills in the field to which the present invention belongs. The words "including" or "comprising" and the like used in the present invention mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. The words "connect" or "connected" and the like are not limited to physical or mechanical connections, but may also include electrical connections, whether direct or indirect. "Up", "down", "left", "right", etc. are only used to indicate relative position relationships. When the absolute position of the described object changes, the relative position relationship may also change accordingly.

[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rice cleaning screen, comprising a downwardly sloping material support seat (1), characterized in that: The bottom end of the inclined downward material support seat (1) is fixedly connected to two symmetrically arranged triangular brackets (2), and both sides of the top end of the inclined downward material support seat (1) are rotatably connected to a rotating shaft (3) through a bearing seat, and the two rotating shafts (3) are fixedly connected to the same rotating frame (4) at one end opposite to each other, and the top end of the rotating frame (4) is fixedly connected to the same feeding hopper (41) through two inverted L-shaped plates, and a U-shaped plate (5) is slidably connected to the inner side wall of the rotating frame (4), and an inclined baffle (52) is fixedly connected to the inner wall of the U-shaped plate (5), and a discharge port (53) opened on one side wall of the rotating frame (4) is also provided on one side of the inclined baffle (52), and a screen (6) is movably fitted on the bottom of the inclined baffle (52), and the screen (6) is connected to the U-shaped plate (5) through a convenient disassembly assembly component; It also includes a linkage structure (7) and a support structure (8). The linkage structure (7) is installed on the rotating frame (4) and is connected to the feeding hopper (41) and the U-shaped plate (5). The linkage structure (7) can make the rice in the feeding hopper (41) fall intermittently and can also realize the reciprocating forward and backward movement of the screen (6) in linkage. The support structure (8) is installed at the bottom end of the rotating frame (4) and is connected to the top end of the downward material support seat (1). When the cleaning screen device is not in use, the support structure (8) can be folded to facilitate subsequent storage and transportation.

2. A rice cleaning sieve according to claim 1, characterized in that: Sliding seats (51) with an I-shaped vertical section are fixedly connected to both side walls of the U-shaped plate (5), and the sliding seats (51) are slidably connected to sliding grooves provided on the outer side of the rotating frame (4).

3. A rice cleaning sieve according to claim 1, characterized in that: The convenient disassembly and assembly assembly comprises an inserting strip (61) fixedly connected to both side walls of the screen (6), the vertical cross-section of the inserting strip (61) is an isosceles trapezoidal structure, and slots (63) matching with the inserting strip (61) are provided on both side inner walls of the U-shaped plate (5), the length of the inserting strip (61) is greater than the length of the screen (6), and a hand screw (62) is threadedly penetrated and connected at a position of the inserting strip (61) away from the feeding hopper (41), and one end of the hand screw (62) after being locked is pressed against the inner wall of the slot (63).

4. A rice cleaning sieve according to claim 1, characterized in that: The linkage structure (7) comprises a double-axis motor (75) fixedly connected to the rotating frame (4); the output shafts at both ends of the double-axis motor (75) are respectively fixedly connected to a rotating disk (74) and an eccentric wheel (76); a transmission column (73) is fixedly connected to the top edge of the rotating disk (74); and a movable baffle (71) is movably inserted on the feeding hopper (41).

5. A rice cleaning sieve according to claim 4, characterized in that: One end of the movable baffle (71) is movably attached to the inner wall of the feeding hopper (41), and the other end extends to the outside of the feeding hopper (41) and is provided with a transmission channel (72) matched with a transmission column (73). The eccentric wheel (76) is movably overlapped in a transmission groove (77) provided on the U-shaped plate (5).

6. A rice cleaning sieve according to claim 1, characterized in that: The support structure (8) comprises a synchronous frame (82) slidably connected to two inclined surfaces at the top of the oblique material support seat (1); the bottom end of the synchronous frame (82) is fixedly connected to two symmetrically arranged moving seats (81); the vertical cross-sections of the moving seats (81) are all convex structures; the moving seats (81) are slidably connected to moving grooves provided on the inclined surfaces at the top of the oblique material support seat (1); support rods (83) are hinged on both sides of the top of the synchronous frame (82); the top ends of the support rods (83) are hinged to the bottom end of the rotating frame (4).

7. A rice cleaning sieve according to claim 6, characterized in that: A one-way screw (84) is threadedly connected to one of the movable seats (81), and both ends of the one-way screw (84) are rotatably connected to the movable groove. One end of the one-way screw (84) away from the rotating shaft (3) extends to the outside of the oblique downward material support seat (1) and is fixedly connected to a hand wheel (85). A hand-tightening nut (86) threadedly connected to the outside of the one-way screw (84) is provided between the hand wheel (85) and the oblique downward material support seat (1).

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