Broken rice screening machine

Abstract

The utility model discloses a broken rice screening machine. Comprising a base, an inclined screening unit located above the base, a first rotating frame hinged to the bottom of the screening unit and the base, a length-adjustable second rotating frame with the two ends hinged to the bottom of the screening unit and the base, and a driving mechanism assembled on the base and used for driving the first rotating frame to swing in a reciprocating mode. The screening unit comprises an inclined supporting frame and a filter screen detachably assembled on the supporting frame through a mounting mechanism, when different varieties of rice need to be screened, the mounting mechanism can be opened, and the filter screen can be replaced, so that the filter screen is matched with the screened rice; therefore, different varieties of rice can be screened, and the practicability is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of rice processing, in particular to a rice broken rice screening machine. BACKGROUND

[0002] The broken rice screening is to ensure the quality of rice, remove byproducts or impurities affecting the quality of rice. In the processing of rice, in order to ensure the quality of rice, the broken rice contained in the rice needs to be screened. Broken rice will affect the taste of rice, and the price of broken rice will not be the same as good rice, which will seriously affect the economic income of the manufacturer.

[0003] The utility model discloses a rice screening device, and the driving motor drives the vibrator to vibrate the screen to screen rice in the vibrating screen body, meanwhile, the driving motor drives the connecting shaft to move through the transmission assembly, the connecting shaft drives the plow rake component to force the rice to move and screen, and meanwhile, the adjustable discharge component is driven to adjust the discharge expansion through the movement of the connecting shaft, compared with the prior art, the screening effect of rice can be improved, and the range of the discharge expansion can be adjusted to prevent the scattering of rice.

[0004] However, the above-mentioned patent still has the following disadvantages: when screening different varieties of rice, different mesh size screening nets need to be used, that is, filtering nets with matching pore sizes need to be used, and the filtering nets in the above-mentioned screening device are inconvenient to replace, so that the screening device can only screen single flat rice and cannot screen different varieties of rice, and therefore a rice broken rice screening machine needs to be designed. UTILITY MODEL CONTENTS

[0005] In view of the above technical problems, the utility model aims at overcoming the problem that the screening device in the prior art is inconvenient to replace filtering nets of different specifications.

[0006] In order to achieve the above-mentioned purpose, the utility model provides a rice broken rice screening machine, which comprises a base, an inclined screening unit located above the base, a first rotating frame hinged to the bottom of the screening unit and hinged to the base, a second rotating frame with adjustable length and hinged to the bottom of the screening unit and the base at both ends, and a driving mechanism assembled on the base for driving the first rotating frame to reciprocating swing.

[0007] The screening unit comprises an inclined support frame and a filtering net detachably assembled on the support frame through a mounting mechanism.

[0008] Preferably, the screening unit further comprises a bottom disc with an open top and fitted on the edge of the support frame, and a U-shaped baffle with three side edges respectively connected with the inclined bottom edge and two inclined side edges of the support frame.

[0009] The upwardly inclined bottom of the base is provided with a discharge port, and the first rotary frame and the second rotary frame are both hingedly connected to the bottom of the base.

[0010] Preferably, the top of the support frame is provided with a strip-shaped groove of the same length direction on each of the two inclined side edges arranged in a relative state, and the strip-shaped groove is located on the inner side of the baffle.

[0011] The mounting mechanism comprises a pair of mounting members respectively detachably assembled on the opposite two side edges of the baffle through a plurality of mounting bolts, the mounting members can be pressed on the upper surface of the filter screen, and the bottom of the mounting member is fixedly provided with a plurality of positioning pins arranged at intervals and capable of being inserted into the strip-shaped groove through the filter screen.

[0012] Preferably, the second rotary frame comprises a first connecting arm rotationally connected to the bottom of the base, a second connecting arm rotationally connected to the base, an X-shaped deformation frame for connecting the first connecting arm and the second connecting arm, and a control mechanism assembled on the second connecting arm for driving the X-shaped deformation frame to deform.

[0013] Preferably, a strip-shaped sliding groove of the same length direction is arranged on each of the first connecting arm and the second connecting arm, one of the upper ends of the X-shaped deformation frame is hingedly connected to the first connecting arm, and the other upper end is provided with a first hinge pin sliding through the strip-shaped sliding groove on the first connecting arm.

[0014] One of the lower ends of the X-shaped deformation frame is hingedly connected to the second connecting arm, and the other lower end is provided with a second hinge pin sliding through the strip-shaped sliding groove on the second connecting arm.

[0015] Preferably, the control mechanism comprises an adjusting screw arranged in parallel with the second connecting arm and hingedly connected to the second connecting arm at both ends, and a sliding block slidingly connected to the second connecting arm and threadedly sleeved on the adjusting screw, the sliding block is connected to the second hinge pin, and the end of the adjusting screw is recessed to form a hexagonal groove.

[0016] Preferably, a horizontal first connecting shaft is fixedly arranged on the first rotary frame, the driving mechanism comprises a second connecting shaft arranged in parallel with the first connecting shaft and hingedly connected to the base, a first connecting sleeve rotationally sleeved on the first connecting shaft, a rotating disc fixedly sleeved on the second connecting shaft in an off-center manner, a second connecting sleeve rotationally sleeved on the outer side of the rotating disc, a connecting rod fixedly connected to the first connecting sleeve and the second connecting sleeve at both ends, and a motor assembled on the base and connected to the second connecting shaft at one end.

[0017] According to the above technical scheme, the rice broken rice screening machine has the following beneficial effects in use:

[0018] One, when different varieties of rice need to be screened, the installation mechanism can be opened, the filter screen can be replaced, so that the filter screen matches the rice to be screened, thereby screening different varieties of rice, and the practicability is high.

[0019] Secondly, by adjusting the length of the second rotating frame, the inclination angle of the supporting frame can be adjusted, the advancing speed of the rice on the filter screen can be adjusted, that is, the time length of the rice passing through the entire filter screen, and the practicability is high.

[0020] Other features and advantages of the present application will be described in detail in the following specific embodiments; and the parts not involved in the present application are the same as or can be realized by the prior art. BRIEF DESCRIPTION OF DRAWINGS

[0021] The accompanying drawings are used to provide a further understanding of the present application, and constitute a part of the specification, and are used to explain the present application together with the following specific embodiments, but do not constitute a limitation on the present application. In the drawings:

[0022] Figure 1 is a three-dimensional structural schematic view of a rice broken rice screening machine provided by the present application;

[0023] Figure 2 is a three-dimensional structural schematic view of a rice broken rice screening machine provided by the present application Figure One ;

[0024] Figure 3 is a three-dimensional structural schematic view of a rice broken rice screening machine provided by the present application

[0025] Figure 4 is a three-dimensional structural schematic view of a rice broken rice screening machine provided by the present application

[0026] Figure 5 is an enlarged schematic view of position A in the rice broken rice screening machine provided by the present application.

[0027] BRIEF DESCRIPTION OF DRAWINGS

[0028] 1, base; 2, first rotating frame; 3, second rotating frame; 4, supporting frame; 5, filter screen; 6, bottom disc; 7, baffle; 8, discharge port; 9, strip-shaped groove; 10, mounting bolt; 11, mounting piece; 12, positioning needle; 13, first connecting arm; 14, second connecting arm; 15, X-shaped deformation frame; 16, strip-shaped sliding groove; 17, adjusting screw; 18, sliding block; 19, first connecting shaft; 20, second connecting shaft; 21, first connecting sleeve; 22, rotating disc; 23, second connecting sleeve; 24, connecting rod; 25, motor. DETAILED DESCRIPTION

[0029] The specific embodiments of the present application are described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely intended to illustrate and explain the present application, and are not intended to limit the present application.

[0030] In the present application, unless otherwise stated, the orientation words contained in the terms such as "up, down, in, out" only represent the orientation of the terms in the normal use state, or the common name understood by those skilled in the art, and should not be regarded as a limitation of the terms.

[0031] As shown in Figures 1-5 A rice broken rice screening machine, comprising: a base 1, an inclined screening unit above the base 1, a first rotating frame 2 hinged to the bottom of the screening unit and hinged to the base 1, a second rotating frame 3 with adjustable length hinged to the bottom of the screening unit and the base 1 at both ends, and a driving mechanism assembled on the base 1 for driving the first rotating frame 2 to reciprocating swing;

[0032] The screening unit comprises an inclined support frame 4 and a filter screen 5 detachably assembled on the support frame 4 through a mounting mechanism.

[0033] When the driving mechanism is started, the first rotating frame 2 can be driven to reciprocating swing, thereby driving the support frame 4 to swing, and the second rotating frame 3 will also be driven by the support frame 4 to reciprocating swing, so that the rice is put on the inclined lower end of the support frame 4 and can be discharged from the inclined upper end of the support frame 4, while the broken rice will fall downward through the filter screen 5.

[0034] When different varieties of rice need to be screened, the mounting mechanism can be opened to replace the filter screen 5, so that the filter screen 5 matches the rice being screened, thereby screening different varieties of rice, which is highly practical.

[0035] By adjusting the length of the second rotating frame 3, the inclination angle of the support frame 4 can be adjusted, and the forward speed of the rice on the filter screen 5, i.e. the time length of the rice passing through the entire filter screen 5, can be adjusted according to the specific use, which is highly practical.

[0036] The screening unit further comprises a bottom disc 6 which is open at the top and is fitted on the edge of the support frame 4, and a U-shaped baffle 7 which is connected to the inclined bottom edge and two inclined side edges of the support frame 4 respectively;

[0037] The upwardly inclined bottom of the bottom disc 6 is provided with a discharge port 8, and the first rotating frame 2 and the second rotating frame 3 are both hinged to the bottom of the bottom disc 6.

[0038] The baffle plate 7 is used to prevent rice from falling off the edge of the support frame 4 to the ground, and the bottom plate 6 is used to catch the broken rice passing through the filter screen 5 and discharge the broken rice from the discharge port 8.

[0039] The support frame 4 is provided with two lengthwise strip-shaped grooves 9 on the two opposite sides of the top of the support frame 4.

[0040] The mounting mechanism comprises a pair of mounting members 11 which are detachably mounted on the two opposite sides of the baffle plate 7 through a plurality of mounting bolts 10.

[0041] When the filter screen 5 needs to be replaced, the mounting bolts 10 are loosened, the mounting members 11 are lifted upward, and the positioning pins 12 are removed from the strip-shaped grooves 9.

[0042] The second rotating frame 3 comprises a first connecting arm 13 rotatably connected to the bottom of the bottom plate 6, a second connecting arm 14 rotatably connected to the base 1, an X-shaped deformation frame 15 for connecting the first connecting arm 13 and the second connecting arm 14, and a control mechanism mounted on the second connecting arm 14 for deforming the X-shaped deformation frame 15.

[0043] The deformation degree of the X-shaped deformation frame 15 can be controlled through the control mechanism, so as to adjust the distance between the first connecting arm 13 and the second connecting arm 14.

[0044] The first connecting arm 13 and the second connecting arm 14 are provided with lengthwise strip-shaped sliding grooves 16.

[0045] One of the upper ends of the X-shaped deformation frame 15 is hingedly connected to the first connecting arm 13, and the other upper end is provided with a first hinge pin sliding through the strip-shaped sliding groove 16 on the first connecting arm 13.

[0046] One of the lower ends of the X-shaped deformation frame 15 is hingedly connected to the second connecting arm 14, and the other lower end is provided with a second hinge pin sliding through the strip-shaped sliding groove 16 on the second connecting arm 14.

[0047] Through the tool inserting into the hexagonal recess, the adjusting screw 17 can be driven to rotate, the adjusting screw 17 can drive the sliding block 18 to slide on the second connecting arm 14, the sliding block 18 can drive one end of the X-shaped deforming frame 15 to move through the second hinge pin, so as to adjust the distance between the first connecting arm 13 and the second connecting arm 14.

[0048] The first rotating frame 2 is fixedly provided with a horizontal first connecting shaft 19, the driving mechanism comprises a second connecting shaft 20 which is arranged in parallel with the first connecting shaft 19 and is connected with the base 1, a first connecting sleeve 21 which is rotatably sleeved on the first connecting shaft 19, a rotating disc 22 which is fixedly sleeved on the second connecting shaft 20, a second connecting sleeve 23 which is rotatably sleeved on the outer side of the rotating disc 22, a connecting rod 24 which is fixedly connected with the first connecting sleeve 21 and the second connecting sleeve 23 at two ends respectively, and a motor 25 which is assembled on the base 1 and is connected with the second connecting shaft 20 at one end.

[0049] The motor 25 is started to drive the second connecting shaft 20 to rotate, the second connecting shaft 20 drives the rotating disc 22 to rotate, the rotating disc 22 rotates in the second connecting sleeve 23, and since the second connecting shaft 20 and the rotating disc 22 are arranged in a skew axis, when the rotating disc 22 rotates, the first connecting shaft 19 can be pulled or pushed through the second connecting sleeve 23, the connecting rod 24 and the first connecting sleeve 21, so as to drive the first rotating frame 2 to reciprocating swing.

[0050] The preferred embodiments of the utility model are described in detail above in combination with the drawings, however, the utility model is not limited to the specific details in the above-mentioned embodiments, and various simple modifications can be made to the technical scheme of the utility model within the technical concept of the utility model, and these simple modifications all belong to the protection scope of the utility model.

[0051] In addition, it should be noted that various specific technical features described in the above-mentioned specific embodiments can be combined in any appropriate manner without contradiction, and in order to avoid unnecessary repetition, the utility model will not further describe various possible combination manners.

[0052] In addition, various different embodiments of the utility model can also be combined in any manner, as long as it does not deviate from the technical concept of the utility model, and it should be considered as the disclosed content of the utility model.

Claims

1. A rice broken rice screening machine characterized by comprising: It comprises: a base (1), an inclined screening unit above the base (1), a first rotating frame (2) hinged to the bottom of the screening unit and to the base (1), a second rotating frame (3) with two ends hinged to the bottom of the screening unit and the base (1) and adjustable in length, and a driving mechanism assembled on the base (1) for driving the first rotating frame (2) to swing back and forth; The screening unit comprises an inclined support frame (4) and a filter screen (5) detachably assembled on the support frame (4) through a mounting mechanism.

2. The rice broken rice screening machine according to claim 1, characterized by, The screening unit further comprises a bottom disc (6) with an open top and fitted on the edges of the support frame (4), and a U-shaped baffle (7) with three sides respectively connected to the inclined bottom and two inclined sides of the support frame (4). The upwardly inclined bottom of the bottom disc (6) is provided with a discharge port (8), and the first rotating frame (2) and the second rotating frame (3) are both hinged to the bottom of the bottom disc (6).

3. The rice broken rice screening machine according to claim 2, characterized by, The top of the support frame (4) is provided with two inclined side edges in a relative state, and each side edge is recessed with a strip-shaped groove (9) in the same length direction, and the strip-shaped groove (9) is located inside the baffle (7). The mounting mechanism comprises a pair of mounting pieces (11) detachably assembled on the two opposite side edges of the baffle (7) through a plurality of mounting bolts (10), the mounting pieces (11) can be pressed on the upper surface of the filter screen (5), and the bottom of the mounting piece (11) is fixedly provided with a plurality of positioning pins (12) spaced apart and capable of being inserted into the strip-shaped groove (9) through the filter screen (5).

4. The rice broken rice screening machine according to claim 2, characterized by, The second rotating frame (3) comprises a first connecting arm (13) rotationally connected to the bottom of the bottom disc (6), a second connecting arm (14) rotationally connected to the base (1), an X-shaped deformation frame (15) for connecting the first connecting arm (13) and the second connecting arm (14), and a control mechanism assembled on the second connecting arm (14) for driving the X-shaped deformation frame (15) to deform.

5. The rice broken rice screening machine according to claim 4, wherein The first connecting arm (13) and the second connecting arm (14) are both provided with a strip-shaped sliding groove (16) in the same length direction, one of the upper ends of the X-shaped deformation frame (15) is hinged to the first connecting arm (13), and the other upper end is provided with a first hinge pin sliding through the strip-shaped sliding groove (16) on the first connecting arm (13); One of the lower ends of the X-shaped deformation frame (15) is hinged to the second connecting arm (14), and the other lower end is provided with a second hinge pin sliding through the strip-shaped sliding groove (16) on the second connecting arm (14).

6. The rice broken rice screening machine according to claim 5, wherein The control mechanism comprises an adjusting screw (17) arranged in parallel with the second connecting arm (14) and having both ends hinged to the second connecting arm (14), and a sliding block (18) slidingly connected to the second connecting arm (14) and threadedly sleeved on the adjusting screw (17), the sliding block (18) is connected to the second hinge pin, and the end of the adjusting screw (17) is recessed with a hexagonal groove.

7. The rice broken rice screening machine according to claim 1, wherein The first rotating frame (2) is fixedly provided with a horizontal first connecting shaft (19), the driving mechanism comprises a second connecting shaft (20) which is arranged in parallel with the first connecting shaft (19) and is connected with the base (1) in an axle manner, a first connecting sleeve (21) which is rotatably sleeved on the first connecting shaft (19), a rotating disc (22) which is fixedly sleeved on the second connecting shaft (20) in an off-axis manner, a second connecting sleeve (23) which is rotatably sleeved on the outer side of the rotating disc (22), a connecting rod (24) which is fixedly connected with the first connecting sleeve (21) and the second connecting sleeve (23) at two ends respectively, and a motor (25) which is assembled on the base (1) and is connected with the second connecting shaft (20) at one end.

Images