Walnut screening and grading device

Abstract

The utility model relates to the technical field of walnut screening, in particular to a walnut screening and grading device which comprises a base and further comprises an adjusting mechanism and a sorting mechanism, the sorting mechanism comprises a screening box, a first filter frame, a second filter frame, a driving assembly and two reciprocating sliding assemblies, and the adjusting mechanism is arranged on the outer wall of the first filter frame. The adjusting mechanism comprises a telescopic assembly and a plurality of arc-shaped blocking pieces, an avoiding groove is formed in the top of each oval filtering hole in a penetrating mode, each arc-shaped blocking piece is arranged at the top of the corresponding avoiding groove in a sliding mode through a sliding strip, and the telescopic assembly is arranged among the multiple sliding strips. And the shapes of the filter holes can be flexibly adjusted according to the shapes of walnuts needing to be screened, the grading screening work of the walnuts of different shapes is met, and the flexibility of the device is improved.

Description

Technical Field

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

[0002] Walnuts come in different sizes. Even walnuts of the same variety may have irregular shapes and sizes due to various reasons during their growth. In order to facilitate later storage and sales, walnuts usually need to be graded and screened.

[0003] The existing device for walnut grading and screening has the following shortcomings:

[0004] 1. The shapes of existing walnuts are mostly round and oval, and the filter holes designed for existing grading and screening devices are generally round. When it is necessary to screen individual oval walnuts, the size difference between the major and minor axes will cause the oval walnuts to deviate when passing through the circular filter holes. Oval walnuts may not be able to pass through the circular filter holes completely or may get stuck in the circular filter holes, seriously affecting the subsequent walnut screening work.

[0005] 2. The existing screening device cannot screen out the broken walnuts mixed in the walnuts while screening and grading the walnuts. The practicality of the device needs to be improved. Utility Model Content

[0006] The purpose of this utility model is to provide a walnut screening and grading device to improve the above problems. In order to achieve the above purpose, the technical solution adopted by this utility model is as follows:

[0007] The present application provides a walnut screening and grading device, comprising a base;

[0008] It also includes regulating and sorting mechanisms;

[0009] The sorting mechanism is arranged on the top of the base, and the sorting mechanism includes a screening box, a first filter frame, a second filter frame, a driving assembly and two reciprocating sliding assemblies. The screening box is fixedly arranged on the top of the base, and the first filter frame and the second filter frame are both slidably arranged inside the screening box. A plurality of elliptical filter holes are evenly spaced on the outer wall of the first filter frame, and a plurality of filter holes are evenly spaced on the outer wall of the second filter frame. The driving assembly is arranged on the top of the base, and the two reciprocating sliding assemblies are arranged between the driving assembly, the first filter frame and the second filter frame.

[0010] The adjustment mechanism is arranged on the outer wall of the first filter frame. The adjustment mechanism includes a telescopic component and several arc-shaped baffles. The top of each elliptical filter hole is provided with an avoidance groove. Each arc-shaped baffle is slidably arranged on the top of an avoidance groove through a slide bar, and the telescopic component is arranged between several slide bars.

[0011] Preferably, the drive assembly includes a dual-axis motor, two driving wheels, two driven wheels, two belts and two cams. The dual-axis motor is fixed on the top of the base, and the two driving wheels are respectively fixed on the two output ends of the dual-axis motor through two transmission shafts. Each driven wheel is rotated by a rotating shaft and is arranged on the outer wall of one end of the screening box. The belt is arranged between the driving wheel and the driven wheel, and each cam is fixed on a rotating shaft.

[0012] Preferably, each reciprocating sliding assembly includes an abutment block, a return spring, an insertion rod and a slider. Two slide grooves are symmetrically provided at both ends of the screening box. The slider slides inside one of the slide grooves. The insertion rod is fixed on the slider. The abutment block is fixed at one end of the insertion rod. The outer edge of the abutment block contacts the outer wall of the cam. The return spring is fixed between the top of the slider and the inner wall of the slide groove.

[0013] Preferably, a connecting plate is fixed between the first filter frame, the second filter frame and the end of the insertion rod away from the abutment block, eight sliding columns are fixed on the outer walls of both ends of the first filter frame and the second filter frame, and eight guide rods are fixed on the inner wall of the screening box, and each sliding column is slidably connected to a guide rod through a sliding bearing.

[0014] Preferably, the telescopic assembly includes a micro electric push rod, two connecting rods and several comb-shaped plates. The two connecting rods are symmetrically arranged at the bottom of the first filter frame. Four limit blocks are fixedly provided at the bottom of the first filter frame. Four limit rods are fixedly provided at the bottom of the two connecting rods. Each limit rod is slidably connected to a limit block. Several comb-shaped plates are fixed between the two connecting rods and several sliding strips. The micro electric push rod is fixed at the bottom of the first filter frame, and its output end is fixedly connected to one of the connecting rods.

[0015] Preferably, a partition is fixedly provided inside the screening box, and a first feed port and a second feed port are respectively provided at the top and bottom of the partition, and a material guide shell is fixedly provided on the sides of the first feed port and the second feed port. Two material discharge ports are provided on the outer walls at both ends of the screening box, and the open end of each material guide shell is aligned with a material discharge port.

[0016] Preferably, a feeding port is fixedly provided on the top of the screening box.

[0017] Preferably, the inner bottom of the screening box is a slope structure, and a discharge outlet is provided at one end of the bottom of the screening box.

[0018] The beneficial effects of the utility model are:

[0019] 1. The utility model is designed with an adjustment mechanism, namely, a telescopic component and a plurality of arc-shaped baffles. In the initial state, the arc-shaped baffles overlap with the elliptical filter holes to form circular filter holes, which is convenient for screening and grading of round individual walnuts. When it is necessary to grade and screen the elliptical individual walnuts, the telescopic component drives the plurality of arc-shaped baffles to move out of the elliptical filter holes, so that the circular filter holes are transformed into elliptical filter holes, and the elliptical individual walnuts are prevented from being offset when passing through the circular filter holes due to the inconsistency of the dimensions of the major and minor axes. The elliptical walnuts can pass through the elliptical filter holes quickly, thereby improving the grading and screening efficiency of the elliptical walnuts. The device can flexibly adjust the shape of the filter holes according to the shape of the individual walnuts to be screened, meet the grading and screening work of walnuts of different shapes, and improve the flexibility of the use of the device.

[0020] 2. The utility model designs an adjustment mechanism and a sorting mechanism, and designs a first filter frame and a second filter frame. The adjustment mechanism and the sorting mechanism are installed at an angle, and a plurality of filter holes are designed on the second filter frame. It can not only realize the size screening of walnuts, but also sort out broken walnuts or pulp mixed in the walnuts, avoiding waste and improving the practicality of the device.

[0021] 3. The utility model is designed with a discharge port, a first feed port, a second feed port, two material guide shells and two discharge ports, which can realize the size screening of walnuts, the discharge of materials on each side after screening and the separate discharge of broken walnuts without causing confusion, thereby achieving the effect of graded screening and multi-purpose of one machine.

[0022] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or understood by practicing the embodiments of the present invention. The objectives and other advantages of the present invention can be achieved and obtained by the structures particularly pointed out in the written description, claims, and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0025] Figure 2 for Figure 1 A magnified view of point A in the figure;

[0026] Figure 3This is a schematic diagram of the cross-sectional structure of the present utility model;

[0027] Figure 4 for Figure 3 Enlarged view of point B in FIG.

[0028] Figure 5 This is a schematic diagram of the bottom structure of the first filter frame of the present invention;

[0029] Figure 6 for Figure 5 Enlarged view of point C in the figure;

[0030] Figure 7 It is a side view of the utility model;

[0031] Figure 8 It is a schematic diagram of a partial three-dimensional structure of the utility model.

[0032] Markings in the figure: screening box 1, first filter frame 2, second filter frame 3, elliptical filter hole 4, filter hole 5, arc-shaped baffle 6, avoidance groove 7, slide bar 8, dual-axis motor 9, driving wheel 10, driven wheel 11, belt 12, cam 13, abutment block 14, return spring 15, insertion rod 16, slider 17, connecting plate 18, slide column 19, micro electric push rod 20, connecting rod 21, comb plate 22, limit block 23, limit rod 24, partition 25, first feed port 26, second feed port 27, material guide shell 28, discharge port 29, loading port 30, discharge port 31. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the utility model for protection, but merely represents selected embodiments of the present invention. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0034] It should be noted that similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings. At the same time, in the description of this utility model, the terms "first", "second", etc. are used only to distinguish the description and should not be understood as indicating or implying relative importance.

[0035] Figures 1 to 8 As shown, this embodiment provides a walnut screening and grading device, including a base;

[0036] It also includes regulating and sorting mechanisms;

[0037] The sorting mechanism is arranged at the top of the base, and the sorting mechanism includes a screening box 1, a first filter frame 2, a second filter frame 3, a driving assembly and two reciprocating sliding assemblies. The screening box 1 is fixedly arranged at the top of the base, and the first filter frame 2 and the second filter frame 3 are both slidably arranged inside the screening box 1. A plurality of elliptical filter holes 4 are evenly spaced on the outer wall of the first filter frame 2, and a plurality of filter holes 5 are evenly spaced on the outer wall of the second filter frame 3. Each filter hole 5 is smaller than one elliptical filter hole 4. The driving assembly is arranged at the top of the base, and the two reciprocating sliding assemblies are arranged between the driving assembly, the first filter frame 2 and the second filter frame 3;

[0038] The adjustment mechanism is arranged on the outer wall of the first filter frame 2. The adjustment mechanism includes a telescopic assembly and several arc-shaped baffles 6. The top of each elliptical filter hole 4 is provided with an avoidance groove 7. Each arc-shaped baffle 6 is slidably arranged on the top of an avoidance groove 7 through a slide bar 8. The telescopic assembly is arranged between several slide bars 8.

[0039] Figures 1 to 8 As shown, the driving assembly includes a dual-axis motor 9, two driving wheels 10, two driven wheels 11, two belts 12 and two cams 13. The dual-axis motor 9 is fixed on the top of the base, and the two driving wheels 10 are fixed on the two output ends of the dual-axis motor 9 through two transmission shafts. Each driven wheel 11 is rotated on the outer wall of one end of the screening box 1 through a rotating shaft. The belt 12 is sleeved between the driving wheel 10 and the driven wheel 11. Each cam 13 is fixed on a rotating shaft. The device is equipped with a controller, and all electrical equipment on the device is electrically connected to the controller. Before the walnuts are poured into the first filter frame 2, the dual-axis motor 9 is started by the controller, so that its two output ends drive the two driving wheels 10 to rotate. Since each driven wheel 11 and each cam 13 are fixedly connected to a rotating shaft, the driving wheel 10 and the driven wheel 11 are sleeved by the belt 12, thereby driving the two cams 13 to rotate.

[0040] Figures 1 to 8As shown, each reciprocating sliding assembly includes an abutment block 14, a return spring 15, an insertion rod 16 and a slider 17. Two slide grooves are symmetrically provided at both ends of the screening box 1. The slider 17 is slidably arranged inside one of the slide grooves, and the insertion rod 16 is fixed on the slider 17. The abutment block 14 is fixed at one end of the insertion rod 16. The outer edge of the abutment block 14 contacts the outer wall of the cam 13, and the return spring 15 is fixed between the top of the slider 17 and the inner wall of the slide groove. When the cam 13 rotates, the outer edge of the abutment block 14 contacts the outer wall of the cam 13, the slider 17 is slidably connected to the slide groove, and the insertion rod 16 is fixedly connected to the slider 17, thereby driving the slider 17 to rise vertically and then fall vertically inside the slide groove, thereby reciprocating to realize the reciprocating vertical sliding of the insertion rod 16.

[0041] Figures 1 to 8 As shown, a connecting plate 18 is fixed between the first filter frame 2, the second filter frame 3 and the end of the insertion rod 16 away from the abutment block 14, eight sliding columns 19 are fixed on the outer walls of both ends of the first filter frame 2 and the second filter frame 3, and eight guide rods are fixed on the inner wall of the screening box 1. Each sliding column 19 is slidably connected to a guide rod through a sliding bearing. When the insertion rod 16 slides back and forth vertically, since the end of the insertion rod 16 away from the abutment block 14 is fixedly connected to the first filter frame 2 and the second filter frame 3 through the connecting plate 18, the first filter frame 2 and the second filter frame 3 are slidably connected to the screening box 1 through the eight sliding columns 19 and the eight guide rods. , thereby cooperating with another reciprocating sliding component to drive the first filter frame 2 and the second filter frame 3 to slide reciprocatingly vertically, so that the round walnuts falling into the first filter frame 2 are constantly jumping. In the initial state, the arc-shaped baffle 6 overlaps with the elliptical filter hole 4 to form a circular filter hole, which is convenient for screening and grading the round walnuts. When the first filter frame 2 drives the round walnuts to jump continuously, the smaller round walnuts and broken walnuts fall into the interior of the second filter frame 3 through several circular filter holes. Since the first filter frame 2 and the second filter frame 3 are inclined frame structures, the larger round walnuts are transported from the interior of the first filter frame 2 to the end close to the first feed port 26.

[0042] Figures 1 to 8As shown, the telescopic assembly includes a micro electric push rod 20, two connecting rods 21 and a plurality of comb-shaped plates 22. The two connecting rods 21 are symmetrically arranged at the bottom of the first filter frame 2. Four limit blocks 23 are fixedly provided at the bottom of the first filter frame 2. Four limit rods 24 are fixedly provided at the bottom of the two connecting rods 21. Each limit rod 24 is slidably connected to a limit block 23. A plurality of comb-shaped plates 22 are fixed between the two connecting rods 21 and a plurality of slide bars 8. The micro electric push rod 20 is fixed at the bottom of the first filter frame 2, and its output end is fixedly connected to one of the connecting rods 21. The shapes of existing walnuts mainly include circular and elliptical. The filter holes of existing walnut screening devices are generally circular structures, and the screening of circular filter holes depends on the matching of the particle size of the circular walnuts with the aperture size. When the walnut shape is elliptical, the size difference between the major axis and the minor axis will cause the elliptical walnuts to pass through the circular filter holes. When the filter is sized, the filter element 20 is moved to the filter housing 22 so that the filter element 20 is not moved to the filter housing 22. When the filter is sized, the filter element 20 is moved to the filter housing 22 so that the filter element 20 is moved to the filter housing 22. When the filter is sized, the filter element 20 is moved to the filter housing 22 so that the filter element 20 is moved to the filter housing 22.

[0043] Figures 1 to 8As shown, a partition 25 is fixedly provided inside the screening box 1, and a first feed port 26 and a second feed port 27 are respectively provided on the top and bottom of the partition 25. A guide shell 28 is fixedly provided on the sides of the first feed port 26 and the second feed port 27. Two discharge ports 29 are provided on the outer walls of both ends of the screening box 1. The open end of each guide shell 28 is aligned with a discharge port 29. The larger round walnuts fall from the first feed port 26 into the guide shell 28 beside the first feed port 26 under the filtering effect of several circular filter holes, while the smaller round walnuts and broken walnuts directly pass through several circular filter holes. The holes fall into the interior of the second filter frame 3. Under the shaking action of the second filter frame 3, since each filter hole 5 is smaller than a circular filter hole and an elliptical filter hole 4, the broken walnuts fall from the several filter holes 5 in the second filter frame 3 to the bottom of the screening box 1, while the smaller round walnuts slide from the second feed port 27 into the guide shell 28 next to the second feed port 27. Since the open end of each guide shell 28 is aligned with a discharge port 29, the larger round walnuts and the smaller round walnuts are discharged from the two discharge ports 29 to the outside of the screening box 1 respectively, thereby achieving the grading and screening effect of the walnuts.

[0044] Figures 1 to 8 As shown, a loading port 30 is fixedly provided on the top of the screening box 1 . When walnut screening and grading is performed, the walnuts are manually poured from the loading port 30 into the top of the first filter frame 2 .

[0045] Figures 1 to 8 As shown, the inner bottom of the screening box 1 is a slope structure, and a discharge outlet 31 is provided at one end of the bottom of the screening box 1. The inner bottom of the screening box 1 is designed to be a slope structure, so that the broken walnuts filtered out from the several filter holes 5 can slide along the slope to the discharge outlet 31 after falling into the inner bottom of the screening box 1, and finally be discharged from the discharge outlet 31 to the outside of the screening box 1, thereby achieving the screening and grading effect of the walnuts, and further improving the screening effect of the walnuts.

[0046] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

[0047] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A walnut screening and grading device, comprising a base, characterized in that: It also includes regulating and sorting mechanisms; The sorting mechanism is arranged on the top of the base, and the sorting mechanism includes a screening box (1), a first filter frame (2), a second filter frame (3), a driving assembly and two reciprocating sliding assemblies. The screening box (1) is fixedly arranged on the top of the base, and the first filter frame (2) and the second filter frame (3) are both slidably arranged inside the screening box (1). A plurality of elliptical filter holes (4) are arranged at equal intervals on the outer wall of the first filter frame (2), and a plurality of filter holes (5) are arranged at equal intervals on the outer wall of the second filter frame (3). The driving assembly is arranged on the top of the base, and the two reciprocating sliding assemblies are arranged between the driving assembly, the first filter frame (2) and the second filter frame (3); The adjustment mechanism is arranged on the outer wall of the first filter frame (2), and includes a telescopic assembly and a plurality of arc-shaped baffles (6). A avoidance groove (7) is provided through the top of each elliptical filter hole (4). Each arc-shaped baffle (6) is slidably arranged on the top of a avoidance groove (7) through a slide bar (8), and the telescopic assembly is arranged between the plurality of slide bars (8).

2. The walnut screening and grading device according to claim 1, characterized in that: The driving assembly includes a dual-axis motor (9), two driving wheels (10), two driven wheels (11), two belts (12) and two cams (13). The dual-axis motor (9) is fixed on the top of the base. The two driving wheels (10) are fixed on the two output ends of the dual-axis motor (9) through two transmission shafts. Each driven wheel (11) is rotated on the outer wall of one end of the screening box (1) through a rotating shaft. The belt (12) is sleeved between the driving wheel (10) and the driven wheel (11). Each cam (13) is fixed on a rotating shaft.

3. The walnut screening and grading device according to claim 2, characterized in that: Each reciprocating sliding assembly includes an abutment block (14), a return spring (15), an insertion rod (16) and a slider (17). Two chute grooves are symmetrically provided at both ends of the screening box (1). The slider (17) is slidably arranged inside one of the chute grooves. The insertion rod (16) is fixed on the slider (17). The abutment block (14) is fixed on one end of the insertion rod (16). The outer edge of the abutment block (14) contacts the outer wall of the cam (13). The return spring (15) is fixed between the top of the slider (17) and the inner wall of the chute.

4. The walnut screening and grading device according to claim 3, characterized in that: A connecting plate (18) is fixedly provided between the first filter frame (2), the second filter frame (3) and the end of the insertion rod (16) away from the abutment block (14); eight sliding columns (19) are fixedly provided on the outer walls of both ends of the first filter frame (2) and the second filter frame (3); eight guide rods are fixedly provided on the inner wall of the screening box (1); each sliding column (19) is slidably connected to a guide rod via a sliding bearing.

5. The walnut screening and grading device according to claim 4, characterized in that: The telescopic assembly comprises a micro electric push rod (20), two connecting rods (21) and a plurality of comb-shaped plates (22), wherein the two connecting rods (21) are symmetrically arranged at the bottom of the first filter frame (2), four limit blocks (23) are fixedly provided at the bottom of the first filter frame (2), four limit rods (24) are fixedly provided at the bottom of the two connecting rods (21), each limit rod (24) is slidably connected to a limit block (23), the plurality of comb-shaped plates (22) are fixedly arranged between the two connecting rods (21) and the plurality of slide bars (8), the micro electric push rod (20) is fixedly arranged at the bottom of the first filter frame (2), and its output end is fixedly connected to one of the connecting rods (21).

6. The walnut screening and grading device according to claim 5, characterized in that: A partition (25) is fixedly provided inside the screening box (1), and a first feed port (26) and a second feed port (27) are respectively provided at the top and bottom of the partition (25). A material guide shell (28) is fixedly provided on the sides of the first feed port (26) and the second feed port (27). Two discharge ports (29) are provided on the outer walls at both ends of the screening box (1), and the open end of each material guide shell (28) is aligned with one of the discharge ports (29).

7. The walnut screening and grading device according to claim 6, characterized in that: A loading port (30) is fixedly provided on the top of the screening box (1).

8. The walnut screening and grading device according to claim 7, characterized in that: The inner bottom of the screening box (1) is a sloped structure, and a discharge outlet (31) is provided at one end of the bottom of the screening box (1).

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