Classification screening device for agricultural food processing

Abstract

The utility model relates to the technical field of food processing machinery, and provides a grading screening device for agricultural food processing, which comprises a rack and a transmission mechanism, an adjusting mechanism is arranged on the rack, and the adjusting mechanism comprises a fixed frame fixedly connected to the rack, a plurality of adjusting rods detachably connected to the fixed frame, and a plurality of baffle plates are arranged on the fixed frame. Each adjusting rod is detachably connected with a guide rail, the transmission mechanism is fixedly connected with a plurality of fixing plates, each fixing plate is rotationally connected with a guide groove plate provided with a guide notch, a guide rod is slidably connected into each guide notch, and the two ends of each guide rod are rotationally connected with a guide wheel and a sleeve correspondingly. The bottoms of the guide wheels are in rolling contact with the tops of the guide rails; the lower portion of each connecting rod is elastically connected with and slidably arranged on the inner bottom wall of the corresponding sleeve in a sleeving mode. A roller lever is rotationally connected between the upper portions of the two connecting rods correspondingly arranged in the two adjusting mechanisms. By means of the technical scheme, the problem that in the prior art, a grader is poor in adjustment adaptability is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of food processing machinery, and in particular to a grading and screening device for agricultural food processing. Background Art

[0002] In the process of agricultural food production, the quality of agricultural food produced will vary due to the differences in agricultural food varieties and growth environments. Before agricultural food processing, grading and screening of agricultural food can not only facilitate processing and improve agricultural food processing efficiency, but also improve the economic benefits of agricultural food.

[0003] A relatively common grading and screening device is a machine for screening agricultural foods such as tomatoes and potatoes. It allows multiple foods to be transported and moved on multiple rolling rollers with different intervals between the multiple rollers, so as to screen foods of different sizes. When the size of the food is smaller than the specific roller spacing, the food will fall from the roller spacing and fall to the corresponding collection area, thereby completing the grading and screening of different sizes.

[0004] When grading and screening different agricultural foods, it is often necessary to adjust the screening spacing of the equipment due to the large size differences between different types of agricultural foods or between the same types. When adjusting the grading and screening spacing, the equipment mainly arranges multiple rollers perpendicular to the variable pitch screws between two variable pitch screws (which are different from traditional screws. The screw grooves on traditional screws are equidistant, while the screw grooves on variable pitch screws are variable). When the variable pitch screw rotates, the multiple rollers move in the preset screw grooves on the variable pitch screw, and the gaps between the multiple rollers can change, thereby completing the adjustment of the grading and screening spacing. However, in order to adapt to the grading of different products, this technology can only customize variable pitch screws with different pitches, and the adaptability of adjustment is relatively poor. Utility Model Content

[0005] The utility model provides a grading and screening device for agricultural food processing, which solves the problem of poor adjustment adaptability of a grading machine in the related technology.

[0006] The technical solution of the utility model is as follows:

[0007] A grading and screening device for agricultural food processing, comprising a frame, a transmission mechanism arranged in the frame, two adjustment mechanisms and a plurality of roller bars, two adjustment mechanisms are symmetrically arranged on the frame, and the adjustment mechanisms include:

[0008] A fixing frame, the frame being fixedly connected to the fixing frame;

[0009] An adjustment rod, a plurality of the adjustment rods being detachably connected to the fixing frame;

[0010] A guide rail, each of the adjustment rods is detachably connected to the guide rail, and the adjustment rod is used to adjust the inclination angle of the guide rail;

[0011] A fixed plate, a plurality of the fixed plates being fixedly connected to the transmission mechanism;

[0012] A guide slot plate, each of the fixed plates is rotatably connected to a guide slot plate, and each of the guide slot plates is provided with a guide slot opening;

[0013] A guide rod, each of the guide slot plates is slidably connected to the guide rod, and the two ends of the guide rod are cylindrical, the middle section is square, the middle section of the guide rod is located in the guide slot, and when the guide rod slides in the guide slot, the outer side of the middle section of the guide rod fits with the inner wall of the guide slot of the guide slot plate;

[0014] A guide wheel, one end of each guide rod is rotatably connected to the guide wheel, and when the guide wheel is located at the top of the frame, the bottom of the guide wheel is in rolling contact with the top of the guide rail;

[0015] A sleeve, the other end of each guide rod being rotatably connected to the sleeve;

[0016] Connecting rods, the lower portion of each connecting rod being elastically connected and slidably sleeved on the inner bottom wall of each sleeve;

[0017] Wherein, a plurality of roller bars are rotatably connected between the upper parts of the two connecting rods correspondingly arranged in the two adjusting mechanisms.

[0018] Furthermore, the transmission mechanism comprises:

[0019] A motor, wherein the motor is mounted on the frame;

[0020] Axles, a plurality of which are rotatably connected in the frame;

[0021] A sprocket, wherein the two ends of the shaft are symmetrically fixedly connected to the sprockets, and one of the sprockets is fixedly connected to the output end of the motor;

[0022] Inner link;

[0023] An outer chain link, each of the fixing plates being fixedly connected to the outer chain link;

[0024] Chain, two chains are symmetrically arranged on the frame, the chain is composed of a plurality of inner chain links and a plurality of outer chain links rotatably connected, and the chain is meshed with a plurality of sprockets.

[0025] Furthermore, it also includes a U-shaped limit frame, two of which are symmetrically and detachably connected to the top of the frame, and when the roller bar moves to the top of the frame, the two ends of the roller bar roll in contact with the inner top wall of the U-shaped limit frame;

[0026] Furthermore, it also includes a reset plate, which is fixedly connected to the left side, the right side and the bottom of the frame, and when the guide wheels are located at the two sides and the bottom of the frame, the outer part of the guide wheels is in rolling contact with the inner part of the reset plate;

[0027] Furthermore, it also includes:

[0028] A discharge hopper, wherein a plurality of the discharge hoppers are fixedly connected to the interior of the frame;

[0029] Buffer cotton, each of the discharge hoppers is fixedly connected with the buffer cotton.

[0030] Furthermore, it also includes a U-shaped baffle, and two of the U-shaped baffles are symmetrically and detachably connected to the top of the rack.

[0031] The working principle and beneficial effects of the utility model are:

[0032] 1. Compared with the existing grading and screening device for agricultural food processing, when the transmission mechanism pushes the guide wheel to move onto the guide rail, the guide wheel moves horizontally and moves vertically up and down along the guide rail at the same time. Due to the different inclination angles of the guide rail and the guide groove plate, the guide wheel pushes the guide rod to slide in the guide groove, and then the guide rod pushes the sleeve, connecting rod and roller bar to move, and the gap between the two adjacent roller bars will change. Agricultural food leaks into the discharge hopper from different gaps to complete the grading. Adjust the adjusting rod, adjust the inclination angle of the guide rail, or rotate the guide groove plate to adjust the inclination angle of the guide groove plate, so that the relative inclination angle of the guide groove plate and the guide rail changes, and then the gap between the two adjacent roller bars changes, and then the grading adjustment is completed.

[0033] 2. Due to the limitation of the limiting plate and the elastic connection between the connecting rod and the sleeve, when the guide wheel pushes the guide rod and the sleeve to move, the roller bar can only move horizontally, thereby avoiding the misalignment of the roller bar moving up and down, which may cause damage to agricultural food. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0035] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0036] Figure 2 It is a structural schematic diagram of the frame of the utility model;

[0037] Figure 3 For this utility model Figure 1 A schematic diagram of the partially enlarged structure at point A in the middle;

[0038] Figure 4 It is a structural schematic diagram of the connecting rod of the utility model;

[0039] Figure 5 This is a schematic diagram of the structure of the outer chain link, the fixing plate and the guide groove of the utility model;

[0040] Figure 6 The utility model is a schematic structural diagram of the cross section of the roller lever, the adjusting rod, the connecting rod and the sleeve.

[0041] In the figure: 1, frame; 2, roller bar; 3, fixed frame; 4, adjusting rod; 5, guide rail; 6, fixed plate; 7, guide groove plate; 8, guide rod; 9, guide wheel; 10, sleeve; 11, connecting rod; 12, U-shaped limit frame; 13, reset plate; 14, unloading hopper; 15, buffer cotton; 16, U-shaped baffle; 101, motor; 102, shaft; 103, sprocket; 201, chain; 202, inner chain link; 203, outer chain link. DETAILED DESCRIPTION

[0042] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0043] like Figures 1 to 6As shown, in this embodiment, the adjustment mechanism includes: a fixed frame 3, an adjusting rod 4, a guide rail 5, a fixed plate 6, a guide groove plate 7, a guide rod 8, a guide wheel 9, a sleeve 10 and a connecting rod 11. The frame 1 is fixedly connected with a fixed frame 3, and a plurality of adjusting rods 4 are detachably connected with the fixed frame 3. Each of the adjusting rods 4 is detachably connected with a guide rail 5. The adjusting rod 4 is used to adjust the inclination angle of the guide rail 5. A plurality of fixed plates 6 are fixedly connected with the transmission mechanism, and each of the fixed plates 6 is rotatably connected with a guide groove plate 7 to adjust the inclination angle between the guide groove plate 7 and the fixed plate 6. A guide groove is provided on each guide groove plate 7, and a guide rod 8 is slidably connected to each guide groove plate 7. The two ends of the guide rod 8 are cylindrical, and the middle section is square, so that the sleeve 10, the connecting rod 11 and the roller bar 2 can maintain the same position during movement. It remains perpendicular to the chain 201 and will not tilt. The middle section of the guide rod 8 is located in the guide groove. When the guide rod 8 slides in the guide groove, the outer side of the middle section of the guide rod 8 fits with the inner wall of the guide groove of the guide groove plate 7. One end of each guide rod 8 is rotatably connected to a guide wheel 9. When the guide wheel 9 is located at the top of the frame 1, the bottom of the guide wheel 9 rolls in contact with the top of the guide rail 5; the other end of each guide rod 8 is rotatably connected to a sleeve 10. When adjusting the inclination angle of the guide groove plate 7, the sleeve 10 is adjusted at the same time to keep the sleeve 10 and the connecting rod 11 perpendicular to the chain 201. The lower part of each connecting rod 11 is elastically connected and slidably sleeved on the inner bottom wall of each sleeve 10; wherein, a plurality of roller bars 2 are rotatably connected between the upper parts of the two connecting rods 11 correspondingly arranged in the two adjustment mechanisms.

[0044] In this embodiment, the transmission mechanism includes: a motor 101, a shaft 102, a sprocket 103, a chain 201, an inner link 202, an outer link 203 and the chain 201, the motor 101 is installed on the frame 1, and multiple shafts 102 are rotatably connected to the frame 1, and the two ends of the shaft 102 are symmetrically fixedly connected to the sprockets 103, and the output end of the motor 101 is fixedly connected to one of the sprockets 103, and each fixed plate 6 is fixedly connected to the outer link 203. Two chains 201 are symmetrically arranged on the frame 1, and the chain 201 is composed of multiple inner links 202 and multiple outer links 203 rotatably connected, and the chain 201 is meshed with multiple sprockets 103.

[0045] In this embodiment, a U-shaped limit frame 12 is also included. Two U-shaped limit frames 12 are symmetrically and detachably connected to the top of the frame 1. When the roller bar 2 moves to the top of the frame 1, the two ends of the roller bar 2 roll in contact with the inner top wall of the U-shaped limit frame 12, so that the roller bar 2 maintains horizontal movement.

[0046] In this embodiment, a reset plate 13 is further included. The left side, right side and bottom of the frame 1 are fixedly connected with the reset plate 13. When the guide wheels 9 are located on both sides and the bottom of the frame 1, the outer portion of the guide wheels 9 rolls with the inner portion of the reset plate 13 to reset the guide rod 8 in the guide slot, thereby reducing the space occupied by the device. At the same time, the guide wheels 9 are graded when they move to the guide rails 5, so that the guide rods 8 are in the same position in the guide slot.

[0047] In this embodiment, it also includes: a discharge hopper 14 and a buffer cotton 15. A plurality of discharge hoppers 14 are fixedly connected inside the frame 1 for collecting the graded agricultural products for further processing. Each discharge hopper 14 is fixedly connected with a buffer cotton 15 to cushion the agricultural food when it falls from the gap between the rollers 2 to the lower hopper, thereby preventing the agricultural food from being damaged due to collision.

[0048] In this embodiment, a U-shaped baffle 16 is also included. Two U-shaped baffles 16 are symmetrically and detachably connected to the top of the frame 1 to prevent agricultural food from falling from both ends of the roller bar 2.

[0049] In this embodiment, when agricultural food is graded, the grading and screening device for agricultural food processing is started, the motor 101 is started, driving the sprocket 103 to rotate, the sprocket 103 drives the chain 201 to rotate, and the fixed plate 6 on the outer link 203 on the chain 201 drives the rotatably connected guide groove plate 7 to move. When moving to the guide rail 5, the guide wheel 9 contacts the guide rail 5. Since the guide rail 5 is inclined at a certain angle, the guide wheel 9 moves horizontally and vertically along the guide rail 5 at the same time. Since the inclination angles of the guide rail 5 and the guide groove plate 7 are different, the guide rod 8 will slide in the guide groove, and the gap between the two adjacent roller bars 2 will change. The agricultural food leaks from different gaps into the discharge hopper 14, and the buffer cotton 15 performs buffering to complete the grading.

[0050] When the grading and screening device for agricultural food processing is in operation, due to the restriction of the reset plate 13 and the elastic connection between the connecting rod 11 and the sleeve 10, the roller bar 2 can only move horizontally and will not move up and down, so the roller bar 2 is kept horizontal.

[0051] After the guide wheel 9 leaves the guide rail 5, it continues to move and contacts the reset plate 13, and the outer side of the guide wheel 9 contacts the inner side of the reset plate 13 to complete the reset.

[0052] When different grading requirements are required, the device is stopped, and the inclination angle of the guide rail 5 is changed by adjusting the adjusting rod 4, or the guide groove plate 7 is rotated to adjust the inclination angle of the guide groove plate 7, so that when the roller bar 2 moves on the guide rail 5, the gap between the two roller bars 2 changes.

[0053] When the guide groove plate 7 is rotated to adjust the inclination angle of the guide groove plate 7 , the sleeve 10 is rotated to keep the connecting rod 11 and the roller bar 2 perpendicular to the chain 201 .

[0054] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A grading and screening device for agricultural food processing, comprising a frame (1), wherein a transmission mechanism is arranged in the frame (1), characterized in that: It also comprises two adjustment mechanisms and a plurality of roller bars (2), wherein the frame (1) is symmetrically provided with two of the adjustment mechanisms, and the adjustment mechanisms comprise: A fixed frame (3), the fixed frame (3) being fixedly connected to the frame (1); An adjustment rod (4), wherein a plurality of the adjustment rods (4) are detachably connected to the fixing frame (3); A guide rail (5), each of the adjustment rods (4) being detachably connected to the guide rail (5), and the adjustment rod (4) being used to adjust the inclination angle of the guide rail (5); A fixed plate (6), a plurality of the fixed plates (6) being fixedly connected to the transmission mechanism; A guide groove plate (7), each of the fixed plates (6) is rotatably connected to a guide groove plate (7), and each of the guide groove plates (7) is provided with a guide groove opening; A guide rod (8), each of the guide slot plates (7) is slidably connected with the guide rod (8), and the two ends of the guide rod (8) are cylindrical, and the middle section is square, and the middle section of the guide rod (8) is located in the guide slot, and when the guide rod (8) slides in the guide slot, the outer side of the middle section of the guide rod (8) is in contact with the inner wall of the guide slot of the guide slot plate (7); A guide wheel (9), one end of each guide rod (8) is rotatably connected to the guide wheel (9), and when the guide wheel (9) is located at the top of the frame (1), the bottom of the guide wheel (9) is in rolling contact with the top of the guide rail (5); A sleeve (10), the other end of each guide rod (8) being rotatably connected to the sleeve (10); Connecting rods (11), the lower portion of each connecting rod (11) being elastically connected and slidably sleeved on the inner bottom wall of each sleeve (10); Wherein, a plurality of roller bars (2) are rotatably connected between the upper parts of the two connecting rods (11) correspondingly arranged in the two adjusting mechanisms.

2. The grading and screening device for agricultural food processing according to claim 1, characterized in that: The transmission mechanism comprises: A motor (101), wherein the motor (101) is mounted on the frame (1); Axles (102), a plurality of the axles (102) being rotatably connected in the frame (1); A sprocket (103), wherein two ends of the shaft (102) are symmetrically fixedly connected to the sprocket (103), and an output end of the motor (101) is fixedly connected to one of the sprockets (103); Inner link (202); An outer chain link (203), each of the fixing plates (6) being fixedly connected to the outer chain link (203); Chain (201), two chains (201) are symmetrically arranged on the frame (1), the chain (201) is composed of a plurality of inner chain links (202) and a plurality of outer chain links (203) rotatably connected, and the chain (201) is meshed with a plurality of sprockets (103).

3. The grading and screening device for agricultural food processing according to claim 2, characterized in that: It also comprises a U-shaped limit frame (12), two of which are symmetrically and detachably connected to the top of the frame (1), and when the roller bar (2) moves to the top of the frame (1), the two ends of the roller bar (2) roll in contact with the inner top wall of the U-shaped limit frame (12).

4. The grading and screening device for agricultural food processing according to claim 3, characterized in that: It also includes a reset plate (13), which is fixedly connected to the left side, the right side and the bottom of the frame (1), and when the guide wheel (9) is located on both sides and the bottom of the frame (1), the outside of the guide wheel (9) is in rolling contact with the inside of the reset plate (13).

5. The grading and screening device for agricultural food processing according to claim 4, characterized in that: Also includes: A discharge hopper (14), wherein a plurality of the discharge hoppers (14) are fixedly connected to the interior of the frame (1); Buffer cotton (15), each of the discharge hoppers (14) is fixedly connected with the buffer cotton (15).

6. The grading and screening device for agricultural food processing according to claim 5, characterized in that: It also comprises a U-shaped baffle plate (16), and two of the U-shaped baffle plates (16) are symmetrically and detachably connected to the top of the frame (1).

Images