A kind of coarse grain flour screening and impurity removing machine

Abstract

This utility model relates to the field of flour production technology and discloses a screening and impurity removal machine for mixed grain flour. It includes a machine body and a collection box located below the machine body. Two supports are fixedly installed on both sides of the top of the inner cavity of the machine body, and a screening frame is slidably connected between the two supports. Several de-lumping frames are arranged inside the screening frame. A protective cover plate is hinged to the top right of the machine body. The tops of the de-lumping frames are fixedly installed to the bottom wall of the protective cover plate. A drive motor is fixedly installed on the left side of the top wall of the machine body. The output end of the drive motor extends into the inner cavity of the machine body and is fixedly installed with an eccentric wheel for pushing the screening frame. Symmetrical reset grooves are formed on the bottom of the sides of the two supports that are close to each other, and reset mechanisms are arranged inside the two reset grooves. This utility model improves the screening and discharge efficiency of the flour by setting reset mechanisms, thus enhancing the practicality of the equipment.

Description

Technical Field

[0001] This utility model relates to the field of flour production technology, and in particular to a screening and impurity removal machine for mixed grain flour. Background Technology

[0002] A search revealed that application number 202322299798.1 discloses a flour production impurity removal machine, including a main body mechanism. An adjustment mechanism is connected to the inner end of the main body mechanism, and an impurity removal mechanism is connected to the lower end of the adjustment mechanism. The impurity removal mechanism includes a driving component. A first umbrella wheel is installed on the transmission end of the driving component. A second umbrella wheel is meshed with the outer end of the first umbrella wheel. A striking block is rotatably connected to the inner end of the second umbrella wheel. A screening frame is rotatably connected to the outer end of the striking block. Multiple sliders are installed at the bottom end of the screening frame, and springs are movably connected to the outer ends of the sliders.

[0003] The flour production impurity removal machine in this patent application uses a motor to drive a lead screw to rotate and engage with multiple de-lumping frames in a spiral motion. This allows the moving de-lumping frames to conduct flour from the inner end of the sieving frame, effectively preventing flour from clumping. However, during this process, because the motor is mounted on the receiving cover, it vibrates synchronously with the vibration of the sieving frame, which can easily damage the motor and reduce the service life of the equipment. Therefore, we propose a mixed grain flour sieving and impurity removal machine. Utility Model Content

[0004] The present invention aims to solve the technical problems existing in the prior art and provide a screening and impurity removal machine for mixed grain flour.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a grain flour sieving and impurity removal machine, comprising an impurity removal machine body and a collection box disposed below the impurity removal machine body. Two supports are fixedly installed on both sides of the top of the inner cavity of the impurity removal machine body, and a sieving frame is slidably connected between the two supports. Four vibration springs are connected between the two supports and the sieving frame. Several block removal frames are arranged inside the sieving frame. A protective cover plate is hinged to the top right of the impurity removal machine body. The tops of the block removal frames are fixedly installed to the bottom wall of the protective cover plate. A drive motor is fixedly installed on the left side of the top wall of the impurity removal machine body, and the output end of the drive motor extends to the impurity removal machine. An eccentric wheel for moving the screening frame is fixedly installed inside the internal cavity of the main body. The bottom of the two supports, which are close to each other, is symmetrically provided with reset grooves. The reset mechanism is provided inside the two reset grooves. The reset mechanism includes two reset sliders that are slidably connected to the top of the two reset grooves and two reset springs that are fixedly connected to the bottom of the two reset sliders. A discharge hopper is fixedly connected between the two reset sliders. The bottom of the discharge hopper extends through the bottom wall of the internal cavity of the impurity remover to the outside. Four stress protrusions are fixedly installed on the front and rear sides of the top of the discharge hopper. Four force-applying protrusions corresponding to the positions of the four stress protrusions are fixedly installed on the bottom of the screening frame.

[0006] Furthermore, four support legs arranged in a matrix are fixedly installed at the four corners of the bottom wall of the cleaning machine body.

[0007] Furthermore, two limiting slide rods are fixedly installed on both sides of the top of the two brackets, and four vibration springs are respectively sleeved on the outer walls of the two limiting slide rods at both ends.

[0008] Furthermore, four vibration springs are fitted at both ends of the outer walls of the two limiting slide rods.

[0009] Furthermore, one end of each of the four vibration springs is fixedly connected to one end of each of the four limiting sliders.

[0010] Furthermore, the other ends of the four vibration springs are respectively fixedly installed on the upper side wall of the two brackets.

[0011] Furthermore, a stress wheel is rotatably connected to the left wall of the screening frame, and the right end of the eccentric wheel is in rolling contact with the left end of the stress wheel.

[0012] Furthermore, the bottom ends of the two reset springs are respectively fixedly connected to the bottom wall surfaces of the two reset grooves.

[0013] Furthermore, the four force-applying protrusions are respectively fixedly installed at the bottom ends of the four limiting sliders.

[0014] Furthermore, a discharge channel corresponding to the bottom end of the discharge hopper is provided through the bottom wall of the inner cavity of the impurity removal machine body.

[0015] Furthermore, the bottom end of the discharge hopper is disposed through the interior of the discharge channel.

[0016] This utility model provides a screening and impurity removal machine for mixed grain flour. It has the following beneficial effects:

[0017] 1. This type of grain flour sieving and impurity removal machine, through the setting of a reset mechanism, operates by opening the protective cover, adding the flour to be processed into the inner cavity of the sieving frame, and closing the protective cover. The protective cover drives several de-lumping frames to insert into the sieving frame. The drive motor is turned on, driving the eccentric wheel to rotate. The rotation of the eccentric wheel intermittently compresses the stress wheel, forcing the stress wheel to push the sieving frame and drive four limit sliders to move along the surfaces of two limit sliders. When the four limit sliders move, they compress or stretch four vibration springs. Under the combined action of the elastic force of the four vibration springs, the sieving frame vibrates in the horizontal direction, vibrating and sieving the flour inside the sieving frame. Since the positions of the de-lumping frames are fixed on the protective cover, the de-lumping frames reciprocate left and right relative to the sieving frame inside the sieving frame, vibrating and sieving the flour inside the sieving frame. The system effectively prevents flour from clumping by conducting the flour through the sieving frame. No additional device is needed to move the lumping racks. The sifted flour falls into the discharge hopper through the sieving frame. When the sieving frame moves the four limit sliders left and right, these sliders in turn move the four force-applying protrusions left and right, creating intermittent pressure on the four stress protrusions. This forces the four stress protrusions to move the discharge hopper downwards. The discharge hopper then moves the two reset sliders to compress the two reset springs. Combined with the elastic force of the two reset springs, this causes the discharge hopper to vibrate vertically. The vibration fully discharges the flour that has fallen into the discharge hopper and collects it in the collection box. This operation is simple and practical, with a reasonable and compact structure, improving the sifting and discharge efficiency of the flour and enhancing the equipment's usability. Attached Figure Description

[0018] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this utility model can be implemented, and therefore have no substantial technical significance.

[0019] Figure 1 This is a cross-sectional view of the mixed grain flour screening and impurity removal machine of this utility model;

[0020] Figure 2 This is a cross-sectional view of the protective cover of the grain flour screening and impurity removal machine of this utility model in the open state;

[0021] Figure 3 for Figure 1 Enlarged diagram of A in the middle;

[0022] Figure 4 for Figure 1Enlarged diagram of B in the diagram.

[0023] Legend:

[0024] 10. Impurity removal machine body; 101. Support leg; 11. Collection box; 12. Bracket; 13. Screening frame; 15. Limiting slide bar; 16. Limiting slider; 17. Vibration spring; 18. Drive motor; 19. Eccentric wheel; 20. Stress wheel; 21. Deblocking frame; 22. Protective cover plate; 23. Discharge hopper; 24. Reset slide groove; 25. Reset slider; 26. Reset spring; 27. Stress protrusion; 28. Force application protrusion; 29. ​​Discharge channel. Detailed Implementation

[0025] A type of grain flour screening and impurity removal machine, such as Figure 1-4As shown, the device includes a cleaning machine body 10 and a collection box 11 located below the cleaning machine body 10. Two supports 12 are fixedly installed on both sides of the top of the inner cavity of the cleaning machine body 10. A screening frame 13 is slidably connected between the two supports 12. Four vibration springs 17 are connected between the two supports 12 and the screening frame 13. Several deblocking frames 21 are installed inside the screening frame 13. The deblocking frames 21 are existing technology and will not be described in detail. A protective cover plate 22 is hinged to the right side of the top of the cleaning machine body 10. The tops of the deblocking frames 21 are fixedly installed to the bottom wall of the protective cover plate 22. A [missing information - likely a device name] is fixedly installed on the left side of the top wall of the cleaning machine body 10. Drive motor 18, the output end of drive motor 18 extends into the inner cavity of the impurity remover body 10 and is fixedly installed with an eccentric wheel 19 for pushing the screening frame 13 to move. Two supports 12 have symmetrically opened reset grooves 24 on their bottom sides that are close to each other. Reset mechanisms are provided inside the two reset grooves 24. The reset mechanisms include two reset sliders 25 that are slidably connected to the top of the two reset grooves 24 and two reset springs 26 that are fixedly connected to the bottom of the two reset sliders 25. A discharge hopper 23 is fixedly connected between the two reset sliders 25. The bottom end of the discharge hopper 23 extends through the bottom wall of the inner cavity of the impurity remover body 10 to the outside. Four stress protrusions 27 are fixedly installed on the front and rear sides of the top of the discharge hopper 23. Four force-applying protrusions 28 corresponding to the positions of the four stress protrusions 27 are fixedly installed on the bottom of the screening frame 13. Four support legs 101 arranged in a matrix are fixedly installed at the four corners of the bottom wall of the impurity removal machine body 10. Two limiting slide rods 15 are fixedly installed on the top sides of the two supports 12. Four limiting sliders 16 fixedly connected to the bottom of the screening frame 13 are slidably connected to the outer walls of the two limiting slide rods 15. Four vibration springs 17 are respectively sleeved on the outer walls of the two limiting slide rods 15. One end of the four vibration springs 17 is respectively connected to the outer walls of the two limiting slide rods 15. One end of each of the four limiting sliders 16 is fixedly connected, and the other ends of the four vibration springs 17 are respectively fixedly installed on the upper side wall of the two supports 12. The left wall of the screening frame 13 is rotatably connected to the stress wheel 20. The right end of the eccentric wheel 19 is in rolling contact with the left end of the stress wheel 20. The bottom ends of the two return springs 26 are respectively fixedly connected to the bottom wall of the two return grooves 24. The four force-applying protrusions 28 are respectively fixedly installed on the bottom ends of the four limiting sliders 16. The bottom wall of the inner cavity of the impurity removal machine body 10 is provided with a discharge channel 29 corresponding to the bottom end of the discharge hopper 23. The bottom end of the discharge hopper 23 is provided inside the discharge channel 29.

[0026] The working principle of this utility model is as follows: In use, open the protective cover 22, add the flour to be processed into the inner cavity of the sieving frame 13, and close the protective cover 22. The protective cover 22 drives several de-lumping frames 21 to insert into the sieving frame 13. Turn on the drive motor 18 to drive the eccentric wheel 19 to rotate. The eccentric wheel 19 intermittently compresses the stress wheel 20, forcing the stress wheel 20 to push the sieving frame 13, causing the four limiting sliders 16 to move along the surfaces of the two limiting slide rods 15. When the four limiting sliders 16 move, they compress or stretch the four vibration springs 17. Combined with the elastic force of the four vibration springs 17, this causes the sieving frame 13 to vibrate horizontally, performing vibration sieving on the flour inside the sieving frame 13. Since the positions of the de-lumping frames 21 are fixed on the protective cover 22, the de-lumping frames 21 reciprocate left and right within the sieving frame 13, vibrating and sieving the flour inside the sieving frame 13. The flour is conducted through the sieving frame 13, effectively preventing flour from clumping. No additional device is needed to move several de-lumping frames 21. The sieving flour falls into the discharge hopper 23 through the sieving frame 13. When the sieving frame 13 drives the four limit sliders 16 to move back and forth, the four limit sliders 16 drive the four force-applying protrusions 28 to move back and forth. The four force-applying protrusions 28 intermittently squeeze the four stress protrusions 27, forcing the four stress protrusions 27 to drive the discharge hopper 23 to move downward. The discharge hopper 23 drives the two reset sliders 25 to compress the two reset springs 26. Under the elastic force of the two reset springs 26, the discharge hopper 23 vibrates in the vertical direction, so that the flour falling into the discharge hopper 23 is fully discharged under the vibration and falls into the collection box 11 for collection. The above operation is simple and practical, the structure is reasonable and compact, improving the sieving and discharge effect of the flour and improving the practicality of the equipment.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A sieving and impurity removal machine for mixed grain flour, characterized in that, The system includes a cleaning machine body (10) and a collection box (11) located below the cleaning machine body (10). Two brackets (12) are fixedly installed on both sides of the top of the inner cavity of the cleaning machine body (10). A screening frame (13) is slidably connected between the two brackets (12). Four vibration springs (17) are connected between the two brackets (12) and the screening frame (13). Several deblocking frames (21) are provided inside the screening frame (13). A protective cover plate (22) is hinged to the right side of the top of the cleaning machine body (10). The top of the several deblocking frames (21) is fixedly installed to the bottom wall of the protective cover plate (22). A drive motor (18) is fixedly installed on the left side of the top wall of the cleaning machine body (10). The output end of the drive motor (18) extends into the inner cavity of the cleaning machine body (10) and is fixedly installed with a pusher. The eccentric wheel (19) of the moving screening frame (13) has a reset groove (24) symmetrically opened on the bottom of the side of the two supports (12) that are close to each other. The reset mechanism is provided inside the two reset grooves (24). The reset mechanism includes two reset sliders (25) that are slidably connected to the top of the two reset grooves (24) and two reset springs (26) that are fixedly connected to the bottom of the two reset sliders (25). A discharge hopper (23) is fixedly connected between the two reset sliders (25). The bottom of the discharge hopper (23) extends through the bottom wall of the inner cavity of the impurity remover body (10) to the outside. Four stress protrusions (27) are fixedly installed on the front and rear sides of the top of the discharge hopper (23). Four force-applying protrusions (28) corresponding to the positions of the four stress protrusions (27) are fixedly installed at the bottom of the screening frame (13).

2. The grain flour screening and impurity removal machine according to claim 1, characterized in that: Four support legs (101) arranged in a matrix are fixedly installed at the four corners of the bottom wall of the cleaning machine body (10).

3. The grain flour screening and impurity removal machine according to claim 1, characterized in that: Two limiting slide rods (15) are fixedly installed on both sides of the top of the two brackets (12). Four limiting sliders (16) that are fixedly connected to the bottom of the screening frame (13) are slidably connected to the outer walls of the two limiting slide rods (15). Four vibration springs (17) are respectively sleeved on the outer walls of the two limiting slide rods (15). One end of the four vibration springs (17) is fixedly connected to one end of the four limiting sliders (16), and the other end of the four vibration springs (17) is fixedly installed on the upper side wall of the two brackets (12).

4. The grain flour sieving and impurity removal machine according to claim 1, characterized in that: The left wall of the screening frame (13) is rotatably connected to a stress wheel (20), and the right end of the eccentric wheel (19) is in rolling contact with the left end of the stress wheel (20).

5. The grain flour sieving and impurity removal machine according to claim 1, characterized in that: The bottom ends of the two reset springs (26) are fixedly connected to the bottom wall surfaces of the two reset grooves (24).

6. The grain flour sieving and impurity removal machine according to claim 3, characterized in that: The four force-applying protrusions (28) are respectively fixedly installed at the bottom ends of the four limiting sliders (16).

7. The grain flour sieving and impurity removal machine according to claim 1, characterized in that: The bottom wall of the inner cavity of the impurity removal machine body (10) is provided with a discharge channel (29) corresponding to the bottom position of the discharge hopper (23), and the bottom end of the discharge hopper (23) is provided inside the discharge channel (29).

Images