Crop screening machine
By designing adjustable spacing material limiting plates and guiding structures, the problem of insufficient adaptability of existing crop screening equipment has been solved, achieving efficient separation of crops and optimized utilization of resources.
Patent Information
- Application Number
- CN202423143052.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-18
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2034-12-18
AI Technical Summary
Existing crop sorting equipment cannot adapt to crops of different sizes, resulting in the need for multiple sets of equipment, which wastes resources and takes up space, and the equipment is idle during the off-season.
Design a crop screening machine that changes the gap between screening rollers by driving a limiting plate, and uses an arc-shaped limiting plate to match the screening rollers, combined with a guide seat and guide plate, to achieve the gradual separation and collection of crops.
It achieves efficient separation of crops of different sizes, reduces equipment requirements, saves space, and adapts to the screening needs of different crops.
Smart Images
Figure CN223946234U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of crop screening, and particularly relates to a crop screening machine. BACKGROUND
[0002] In the planting production of crops, because the growth rates of plants are inconsistent, the sizes of the products of crops are inconsistent at the time of harvesting, and the selling prices of crops of different sizes are also inconsistent. However, because the actual sizes of the products cannot be distinguished by the naked eye during the picking of crops, the products are first collected uniformly and then screened by size. However, the spacing of the currently used screening machines is consistent, and the equipment capable of screening cherry tomatoes cannot be used to screen tomatoes with a larger size difference, so that a set of screening equipment is required for each crop for screening, which requires a large amount of capital investment and occupies a large area, and when the crop is not planted, the screening equipment becomes a decoration. SUMMARY
[0003] To solve the above technical problems, the utility model provides a crop screening machine, which changes the gap spacing of the conveying rollers on the screening roller group by driving the limiting plate, so that the crops on the feeding roller group can be screened according to different gap sizes, and the crops exceeding the gap size are continuously conveyed and collected.
[0004] To achieve the above purpose, the utility model adopts the technical scheme of:
[0005] A crop screening machine, comprising a rack, a conveying assembly, and a screening assembly, wherein the conveying assembly is sequentially connected by a feeding roller group, a screening roller group, and a discharging roller group; the feeding roller group is formed by parallel arraying a plurality of conveying rollers with equal lengths; the screening roller group is formed by arc arraying a plurality of conveying rollers with equal lengths; the discharging roller group is formed by parallel arraying a plurality of conveying rollers with gradually decreasing lengths; the feeding roller group, the screening roller group, and the discharging roller group are all rotatably connected to the rack; the screening assembly comprises a limiting plate and a motor; the motor is arranged on the rack; the output end of the motor is connected to the limiting plate; and the limiting plate is translated on the upper end of the screening roller group under the driving of the motor.
[0006] The limiting plate is in an arc shape, the arc profile of the limiting plate is consistent with the size of the outer end profile of the screening roller group, the output end of the motor is connected to the outer arc surface of the limiting plate, the limiting plate is translated in the direction of the arc center of the screening roller group under the driving of the motor, and the lower end of the limiting plate is provided with an abutting portion composed of a plurality of hard bristles, which is abuttingly connected to the screening roller group.
[0007] The screening assembly further comprises a guide seat and a guide plate, the guide seat is arranged at the connection between the outer contour of the screening roller group and the feeding roller group, the left and right ends of the guide plate are respectively detachably connected to the guide seat and the limiting plate, and the guide plate is a deformable elastic plate.
[0008] The screening machine for crops has the rotating feeding roller group, the screening roller group and the discharging roller group connected end to end in sequence on the frame. The feeding roller group formed by the parallel array of the equal-length conveying rollers can convey the crops thereon. The screening roller group formed by the arc-shaped array of the equal-length conveying rollers has the structure that the gaps between the conveying rollers gradually increase from the inner arc surface to the outer arc surface. The discharging roller group formed by the parallel array of the successively shortened conveying rollers can gradually gather the crops thereon to the shortest conveying roller and then discharge and collect the crops in a region.
[0009] In order to adapt to crops of different sizes and shapes, the screening assembly is arranged at the upper end of the screening roller group. The limiting plate is driven by the motor to translate above the screening roller group. In order to adapt to the arc-shaped array structure of the screening roller group, the limiting plate is arranged in an arc-shaped structure, so that the arc-shaped contour of the limiting plate is consistent with the outer contour of the screening roller group. Therefore, the limiting plate is driven by the motor to translate toward the arc center of the screening roller group, so as to change the maximum gap. When screening cherry tomatoes, the limiting plate is close to the inner arc surface of the screening roller group, so that the largest cherry tomatoes cannot pass through the gap and can only be discharged from the discharging roller group, so as to realize the screening of large crops. Crops smaller than the size can be separated in size by adding a conveying belt or a storage box below the screening roller group according to the size of the passing gap. When screening tomatoes, the limiting plate is close to the outer arc surface of the screening roller group to increase the size of the gap and change the passing gap of the screening, so that the screening machine can be applied to crops of various sizes.
[0010] In order to make the material limiting plate more fit the screening roller group, the lower end of the material limiting plate is provided with an abutting part composed of a plurality of hard bristles, the abutting part is inserted into the gap between the conveying rollers from top to bottom, and even if the gap between the conveying rollers changes during the displacement of the material limiting plate, the bristles can still change positions in the gap, thereby avoiding the crops from passing under the material limiting plate and achieving better material blocking effect, in order to ensure that the crops passing through the feeding roller group can all enter between the inner side arc surface of the material limiting plate and the screening roller group, a guide seat is arranged at the connection between the outer contour of the screening roller group and the feeding roller group, and a deformable guide plate is arranged on the guide seat and the material limiting plate, so that the position close to the feeding roller group of the material limiting plate is always blocked by the guide plate during the forward and backward movement of the material limiting plate, and therefore the crops entering the screening roller group from this position can be guided to enter between the inner side arc surface of the material limiting plate and the screening roller group.
[0011] Further, the material guiding assembly includes a first side plate, a second side plate and a third side plate, the first side plate includes two groups and is arranged on the left and right ends of the feeding roller group, the second side plate is arranged on the inner side arc surface of the screening roller group, and the third side plate includes two groups and is arranged on the left and right ends of the discharging roller group, the two groups of first side plates, the second side plate, the material limiting plate and the two groups of third side plates enclose a front-to-back through material guiding groove, and the material guiding groove is provided with a material guiding opening at the end of the discharging roller group.
[0012] Compared with the prior art, the advantage of the utility model lies in that the gradually increasing structure of the gap between the conveying rollers on the screening roller group can gradually separate the crops thereon according to the size of the gap, and the forward and backward movement of the material limiting plate is used to change the position of the largest gap, so that the largest crops can be collected in a region through the discharging roller group, and other crops can be separated according to the size of the gap and are discharged through the conveying belt or the storage box arranged below the screening roller group, thereby realizing size separation, and the screening machine can effectively separate crops of different sizes, and one machine can be used for multiple purposes. BRIEF DESCRIPTION OF DRAWINGS
[0013] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor.
[0014] Figure 1 It is a front view of the utility model;
[0015] Figure 2The utility model discloses a Figure 1 The utility model discloses a
[0016] Figure 3 The utility model discloses a
[0017] 1, frame, 2, conveying assembly, 21, feed roller group, 22, screening roller group, 23, discharge roller group, 24, conveying roller, 3, screening assembly, 31, material limiting plate, 311, abutting portion, 32, motor, 33, guide seat, 34, guide plate, 4, material guiding assembly, 41, first side plate, 42, second side plate, 43, third side plate, 44, material guiding groove, 441, material guiding port. DETAILED DESCRIPTION
[0018] In order to make the utility model's purpose, technical scheme and advantage more clear, below will to the utility model's technical scheme carry out clear, complete's description. Obviously, the described embodiment is only the utility model a part embodiment, instead of all the embodiment. Based on the embodiment in the utility model, all other embodiments that the ordinary skill in the art obtains without making the creative labor belong to the range that the utility model protects.
[0019] The specific implementation of the utility model will be described below with reference to the drawings:
[0020] As shown in Figures 1-3 A crop screening machine, comprising a frame 1, a conveying assembly 2 and a screening assembly 3, the conveying assembly 2 is sequentially connected by a feed roller group 21, a screening roller group 22 and a discharge roller group 23, the feed roller group 21 is formed by a plurality of equal-length conveying rollers 24 arranged in parallel, the screening roller group 22 is formed by a plurality of equal-length conveying rollers 24 arranged in an arc shape, the discharge roller group 23 is formed by a plurality of sequentially shortened conveying rollers 24 arranged in parallel, and the feed roller group 21, the screening roller group 22 and the discharge roller group 23 are all rotatably connected to the frame 1; the screening assembly 3 comprises a material limiting plate 31 and a motor 32, the motor 32 is arranged on the frame 1, the output end of the motor 32 is connected to the material limiting plate 31, and the material limiting plate 31 translates on the upper end of the screening roller group 22 under the drive of the motor 32.
[0021] The material limiting plate 31 is in an arc shape, the arc profile of the material limiting plate 31 is consistent with the outer end profile of the screening roller group 22, the output end of the motor 32 is connected to the outer arc surface of the material limiting plate 31, the material limiting plate 31 translates towards the arc center of the screening roller group 22 under the drive of the motor 32, the lower end of the material limiting plate 31 is provided with an abutting portion 311 composed of a plurality of hard bristles, and the abutting portion 311 is abuttingly connected to the screening roller group 22.
[0022] The screening assembly 3 further comprises a guide seat 33 arranged at the connecting position of the screening roller group 22 and the outer contour of the feeding roller group 21, and a guide plate 34, the left and right ends of which are respectively detachably connected to the guide seat 33 and the limiting plate 31, and the guide plate 34 is a deformable elastic plate.
[0023] Further, the material guiding assembly 4 is further included, which comprises a first side plate 41, a second side plate 42 and a third side plate 43, the first side plate 41 comprises two groups and is arranged at the left and right ends of the feeding roller group 21, the second side plate 42 is arranged on the inner arc surface of the screening roller group 22, and the third side plate 43 comprises two groups and is arranged at the left and right ends of the discharging roller group 23, the two groups of first side plates 41, the second side plate 42, the limiting plate 31 and the two groups of third side plates 43 are enclosed to form a front-to-back through material guiding groove 44, and the material guiding groove 44 is provided with a material guiding opening 441 at the end of the discharging roller group 23.
[0024] The working mode of the utility model is described as follows:
[0025] The screening machine for crops adopts the structure, the rotatable feeding roller group 21, the screening roller group 22 and the discharging roller group 23 on the rack 1 are sequentially connected in a head-to-tail mode, the feeding roller group 21 formed by the parallel array of a plurality of equal-length conveying rollers 24 can convey the crops thereon, the screening roller group 22 formed by the arc array of a plurality of equal-length conveying rollers 24 forms a structure in which the gap between the conveying rollers 24 gradually increases from the inner arc surface to the outer arc surface, and the discharging roller group 23 formed by the parallel array of a plurality of sequentially shortened conveying rollers 24 can gradually fold the crops thereon to the shortest conveying roller 24 and then concentrate in a region for discharging and collection.
[0026] In order to adapt to different sizes and shapes of crops, the sieve assembly 3 is arranged at the upper end of the sieve roller group 22. The limiting plate 31 is driven by the motor 32 to translate above the sieve roller group 22. In order to adapt to the arc array structure of the sieve roller group 22, the limiting plate 31 is arranged in an arc structure, so that the arc profile is consistent with the outer end profile of the sieve roller group 22. Therefore, under the drive of the motor 32, the limiting plate 31 will translate to the arc center of the sieve roller group 22, thereby changing the maximum gap. When sieving cherry tomatoes, since the cherry tomatoes are small in size, the limiting plate 31 can be close to the inner arc surface of the sieve roller group 22, so that the largest cherry tomatoes cannot pass through the gap, and only the largest cherry tomatoes can be discharged from the discharge roller group 23, thereby realizing the screening of large crops. Crops smaller than the size can be separated by the size of the passing gap and the additional conveyor belt or storage box below the sieve roller group 22.
[0027] In order to make the limiting plate 31 more closely fit the sieve roller group 22, the abutting portion 311 composed of a plurality of hard bristles is arranged at the lower end of the limiting plate 31. The abutting portion 311 is inserted into the gap between the conveying rollers 24 from top to bottom. During the displacement of the limiting plate 31, even if the gap between the conveying rollers 24 changes, the bristles can still change position between the gaps, thereby avoiding the crops from passing under the limiting plate 31 and also playing a better blocking role. In order to ensure that the crops passing through the feed roller group 21 can all enter between the limiting plate 31 and the inner arc surface of the sieve roller group 22, the guide seat 33 is arranged at the connection between the outer profile of the sieve roller group 22 and the feed roller group 21. The deformable guide plate 34 is arranged on the guide seat 33 and the limiting plate 31. Therefore, during the forward and backward movement of the limiting plate 31, the position close to the feed roller group 21 is always blocked by the guide plate 34. Therefore, the crops entering the sieve roller group 22 from this position can be guided into the inner arc surface between the limiting plate 31 and the sieve roller group 22.
[0028] In order to avoid the crops conveyed on the screening machine from falling out, the guide assembly 4 is additionally arranged. The guide groove 44 is enclosed by the two groups of first side plates 41, second side plates 42, limiting plate 31 and two groups of third side plates 43. Therefore, the crops conveyed thereon are limited in the area inside the guide groove 44. The crops larger in size are guided out at the guide port 441 of the guide groove 44 on the end of the discharge roller group 23 for centralized collection.
[0029] The utility model discloses beneficial effect lies in: through the structure that the gap between a plurality of conveying rollers 24 on sieve material roller group 22 gradually increases, can gradually separate the crops on it according to the size of gap, and the front -back movement of supplementary material limiting board 31, change the biggest gap position space, so that in view of different crops size can be the biggest, through the discharge roller group 23 and concentrate on the shortest conveying roller 24 after gathering in an area export and collect, and other size can be according to the size position of passing through the gap and add the conveying belt or storage box under sieve material roller group 22, thereby carry out the size separation, the screening machine can effectively separate different crops size, so that one thing serves many purposes.
[0030] The above embodiments are only used to illustrate the technical solutions of the utility model, and not to limit them; although the utility model is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some or all of the technical features can be replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.
Claims
1. A screening machine for agricultural crops, characterized in that: The application relates to a material screening device, which comprises a rack, a conveying assembly and a screening assembly, the conveying assembly is sequentially connected by a feeding roller group, a screening roller group and a discharging roller group, the feeding roller group is formed by parallel array of a plurality of equal-length conveying rollers, the screening roller group is formed by arc array of a plurality of equal-length conveying rollers, and the discharging roller group is formed by parallel array of a plurality of sequentially shortened conveying rollers, and the feeding roller group, the screening roller group and the discharging roller group are rotationally connected to the rack; the screening assembly comprises a material limiting plate and a motor, the motor is arranged on the rack, the output end of the motor is connected to the material limiting plate, and the material limiting plate is driven by the motor to translate on the upper end of the screening roller group.
2. The sorting machine of crops according to claim 1, characterized in that: The material limiting plate is in an arc structure, the arc profile of the material limiting plate is consistent with the size of the outer end profile of the screening roller group, the output end of the motor is connected to the outer arc surface of the material limiting plate, and the material limiting plate is driven by the motor to translate towards the arc center of the screening roller group.
3. The sorting machine of crops according to claim 2, characterized in that: The lower end of the material limiting plate is provided with an abutting part composed of a plurality of hard bristles, and the abutting part is abuttingly connected to the screening roller group.
4. The sorting machine of crops according to claim 3, characterized in that: The screening assembly further comprises a guide seat and a guide plate, the guide seat is arranged at the outer profile connection position of the screening roller group and the feeding roller group, the left and right ends of the guide plate are detachably connected to the guide seat and the material limiting plate respectively, and the guide plate is a deformable elastic plate.
5. The sorting machine of crops according to claim 4, characterized in that: The application further comprises a material guiding assembly, the material guiding assembly comprises a first side plate, a second side plate and a third side plate, the first side plate comprises two groups and is arranged on the left and right ends of the feeding roller group, the second side plate is arranged on the inner arc surface of the screening roller group, the third side plate comprises two groups and is arranged on the left and right ends of the discharging roller group, and the two groups of first side plates, the second side plate, the material limiting plate and the two groups of third side plates are enclosed to form a front-to-back through material guiding groove.
6. The sorting machine of crops according to claim 5, characterized in that: The material guiding groove is provided with a material guiding opening on the end of the discharging roller group.