A blueberry sorting device

Abstract

The application relates to the field of blueberry screening, and discloses a blueberry sorting device which comprises a workbench, a material distributing device, a screening mechanism and a conveying mechanism. A plurality of parallel guide grooves are formed on the workbench. The material distributing device is installed at one end of the workbench and comprises a storage hopper and a sliding plate connected to the bottom of the storage hopper. A discharge port aligned with each guide groove is installed in the sliding plate. The workbench under the guide grooves is hollow. The screening mechanism is installed in the workbench in the length direction of the guide grooves in sequence. The screening mechanism drives the blueberries away from the material distributing device. A dropping port is formed on the workbench under the guide grooves. The conveying mechanism is located below the dropping port. The screening mechanism is arranged on the workbench, different sizes of blueberries can be dropped from different dropping ports, and the damage of the blueberries caused by mutual extrusion and extrusion with the screen holes during screening can be avoided, so that the waste rate of the blueberries is greatly reduced, and the economic benefits of the blueberries are effectively ensured.

Description

Technical Field

[0001] This invention relates to the field of blueberry sorting, and in particular to a blueberry sorting device. Background Technology

[0002] Blueberries have a sweet and sour taste and are rich in nutrients. They have functions such as preventing brain nerve aging, protecting eyesight, strengthening the heart, fighting cancer, softening blood vessels, and enhancing human immunity. They are a small berry tree species with high economic value and broad development prospects.

[0003] However, blueberries are small in size, and traditionally they are harvested by hand according to their ripeness. This method is extremely inefficient. To solve this problem, mechanical harvesting is used when the blueberries are relatively uniform in ripeness. However, although this method is efficient, the size and ripeness of the berries are inconsistent, so the blueberries need to be sorted.

[0004] Existing sorting devices use sieves or screening rollers with different particle sizes to separate blueberries. While this method is efficient, ripe blueberries are soft and easily spoil. As the blueberries roll over the sieves or rollers, they collide with each other and with the sieve openings, significantly increasing the reject rate. These reject blueberries are large, ripe, and of high quality. If they could be selected undamaged and sold as whole berries, they would bring good economic benefits. However, due to the unreasonable structure of the sorting device, they can only be made into jam, which seriously affects the economic benefits of blueberries. Summary of the Invention

[0005] The purpose of this invention is to solve the problems in the background art and provide a blueberry sorting device. This sorting device can effectively protect the blueberry fruits during the sorting process, greatly reduce the blueberry waste rate, and effectively ensure the economic benefits of blueberries.

[0006] The objective of this invention is achieved through the following technical solution:

[0007] A blueberry sorting device includes a workbench, a dispensing device, a screening mechanism, and a conveying mechanism. Multiple parallel guide grooves are machined on the workbench. The dispensing device is installed at one end of the workbench and includes a storage hopper and a sliding plate connected to the bottom of the storage hopper. A discharge port aligned with each guide groove is installed inside the sliding plate. The workbench below the guide grooves is hollow. The screening mechanism is installed sequentially inside the workbench along the length of the guide grooves. The screening mechanism includes a conveyor chain, a support, a tensioning wheel, and a guide plate. Two conveyor chains are symmetrically installed inside the workbench along the centerline of the guide groove length. The supports are sequentially installed on the outer walls of the conveyor chains, with each support on the two conveyor chains corresponding to the other. When the two supports are closed, they form a positioning groove for storing blueberries. The two conveyor chains rotate in opposite directions, moving the blueberries away from the dispensing device. The spacing between the conveyor chains gradually increases along the conveying direction. A tensioning wheel is installed on each conveyor chain. A discharge port is machined on the workbench below the guide grooves, and the conveying mechanism is located below the discharge port.

[0008] Multiple sets of support rollers for adjusting the spacing between adjacent conveyor chains are sequentially arranged along the length direction on both sides of the guide groove. Each support roller set includes a U-shaped base, a slide block, a threaded adjusting rod, a support spring, and a free roller. The U-shaped base is installed below the conveyor chain, and two aligned sliding grooves are machined on the surface of the U-shaped base. The slide block is slidably installed in the corresponding sliding groove. A threaded adjusting rod for adjusting the position of the slide block in the sliding groove is horizontally and rotatably installed at the end of the U-shaped base. The support spring is horizontally installed in the sliding groove at the end of the slide block away from the threaded adjusting rod. A free roller supporting the inner wall of the conveyor chain is installed on the slide block.

[0009] The support roller assembly is equipped with quick-connect clamps that are adapted to the profile of the discharge port. Symmetrically arranged teeth are machined on the side walls on both sides of the discharge port, and positioning teeth that cooperate with the teeth are machined on the inner wall of the clamps.

[0010] The conveying mechanism includes a conveyor belt and several flexible guide plates installed on the conveyor belt. The conveying direction of the conveyor belt is perpendicular to the guide groove. Adjacent flexible guide plates divide the conveyor belt into smooth conveying channels in the shape of U or C. The top of the flexible guide plate is machined with a hanging lug that connects to the U-shaped base. Multiple storage bins are connected to the end of the conveyor belt.

[0011] The conveyor chain is framed by four sprockets. The positions of the sprockets on adjacent conveyor chains are symmetrical along the guide groove. The drive sprockets on the symmetrical conveyor chains are connected to gears, and the two gears mesh with each other.

[0012] The support has a tapered groove machined on the side wall away from the conveyor chain, and a shock-absorbing pad is installed on the inner wall of the groove.

[0013] The beneficial effects of the blueberry sorting device provided by this invention are:

[0014] (1) By setting up a screening mechanism on the workbench, and by using the cooperation of the conveyor chain and the support, blueberries of different sizes can be dropped from the discharge port at different positions. At the same time, the conveyor chain and the support carry the blueberries separately, which effectively avoids the damage caused by the blueberries squeezing each other and squeezing the screen holes during screening, greatly reduces the scrap rate of blueberries, and effectively ensures the economic benefits of blueberries.

[0015] (2) By setting up a support roller group and adjusting the position of the free roller on the slide block by adjusting the threaded adjustment rod, the size and spacing of the screening channel can be adjusted to ensure the screening efficiency of blueberries;

[0016] (3) By setting quick-connect clamps on the support roller group, it is not only convenient to disassemble the support roller group, but also to adjust the position of the support roller group according to the adjustment size, so as to improve the stability of screening.

[0017] (4) By setting a flexible guide plate on the conveying mechanism and suspending the flexible guide plate on the support roller group through the hanging ear, the flexible guide plate will also move when the position of the support roller group is adjusted, thereby shortening the equipment debugging time.

[0018] (5) By setting gears to drive the two transmission chains to move relative to each other, the synchronization effect of the transmission chains can be improved, thereby avoiding inaccurate blueberry sorting caused by misalignment of the support and the situation of squeezing blueberries. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a top view structural diagram provided for an embodiment of the present invention.

[0021] Figure 2 This is a schematic diagram of the internal structure of the workbench provided in an embodiment of the present invention.

[0022] Figure 3 This is a schematic diagram of the support structure provided in an embodiment of the present invention.

[0023] Figure 4 This is a schematic diagram of the structure of the corresponding support after it is closed, as provided in an embodiment of the present invention.

[0024] Figure 5 This is a side view of the screening mechanism provided in an embodiment of the present invention.

[0025] Figure 6 This is a schematic diagram of the structure of the support roller assembly provided in an embodiment of the present invention.

[0026] Figure 7 A schematic diagram of the conveying mechanism provided in an embodiment of the present invention. Figure 1 .

[0027] Figure 8 A schematic diagram of the conveying mechanism provided in an embodiment of the present invention. Figure 2 .

[0028] Reference numerals: 1. Workbench; 11. Guide groove; 12. Material discharge port; 2. Material distribution device; 21. Storage hopper; 22. Sliding plate; 23. Discharge port; 3. Screening mechanism; 31. Conveyor chain; 32. Support; 33. Tensioning wheel; 34. Groove; 35. Positioning groove; 36. Sprocket; 37. Gear; 38. Shock-absorbing pad; 4. Conveying mechanism; 41. Conveyor belt; 42. Flexible guide plate; 43. Hanging lug; 44. Storage box; 5. Support roller group; 51. Slide groove; 52. U-shaped base; 53. Slide seat; 54. Threaded adjusting rod; 55. Support spring; 56. Free roller; 57. Quick-connect clamp; 58. Tooth; 59. Positioning tooth. Detailed Implementation

[0029] Example

[0030] like Figures 1 to 8As shown, the blueberry sorting device provided in this embodiment includes a workbench 1, a dispensing device 2, a screening mechanism 3, and a conveying mechanism 4. The workbench 1 has multiple parallel guide grooves 11 machined on it. The number of guide grooves 11 is adjusted according to the size of the screening machine. The dispensing device 2 is installed at one end of the workbench 1. The dispensing device 2 includes a storage hopper 21 and a sliding plate 22 connected to the bottom of the storage hopper 21. The sliding plate 22 has a discharge port 23 aligned with each guide groove 11. The workbench 1 below the guide grooves 11 is hollow. The screening mechanism 3 is sequentially installed inside the workbench 1 along the length of the guide groove 11. The screening mechanism 3 includes a conveyor chain 31, a support 32, a tensioning wheel 33, and a slot 34. Two conveyor chains 31 are symmetrically installed inside the workbench 1 along the centerline of the guide groove 11. The conveyor chains 31 are framed by four sprockets 36. The sprockets 36 on adjacent conveyor chains 31 are symmetrically positioned along the guide groove 11. Gears 37 are connected to the drive sprockets 36 on the symmetrical conveyor chains 31, and the two gears 37 mesh with each other. Wheel 37 ensures that the chain conveyor chain 31 moves at the same speed and in the same direction within the guide groove 11. The conveyor chain 31 is roughly the same as existing chain conveyor belts, consisting of chain plates that are hinged sequentially. The support 32 is sequentially installed on the outer wall of the conveyor chain 31. The support 32 is an independent support plate assembly, with each support 32 corresponding to each chain plate. The support 32 on the two conveyor chains 31 correspond one-to-one. When two support 32 are closed, they form a positioning groove 35 for storing blueberries. The side wall of the support 32 away from the conveyor chain 31 is machined with a conical groove 34. The conical slot 34 allows the blueberries to be positioned between the two supports 32, thus ensuring that the blueberries can be properly sorted. To prevent the supports 32 from damaging the blueberries, the inner wall of the slot 34 is equipped with a shock-absorbing pad 38. The two conveyor chains 31 rotate in opposite directions and move the blueberries away from the dispensing device 2. The spacing between the conveyor chains 31 gradually increases along the conveying direction. Each conveyor chain 31 is equipped with a tension wheel 33, which is used to keep the conveyor chain 31 taut to prevent the supports 32 from being misaligned and affecting the sorting of the blueberries.Multiple sets of support roller groups 5 for adjusting the spacing between adjacent conveyor chains 31 are sequentially arranged along the length direction on both sides of the guide groove 11. Each support roller group 5 includes a U-shaped base 52, a slide block 53, a threaded adjusting rod 54, a support spring 55, and a free roller 56. The U-shaped base 52 is installed below the conveyor chain 31, and two aligned sliding grooves 51 are machined on its surface. The slide block 53 is slidably installed in the corresponding sliding groove 51. A threaded adjusting rod 54 for adjusting the position of the slide block 53 within the sliding groove 51 is horizontally and rotatably installed at the end of the U-shaped base 52. The support spring 55 is horizontally installed in the sliding groove 51 at the end of the slide block 53 away from the threaded adjusting rod 54. A free roller 56 supporting the inner wall of the conveyor chain 31 is installed on the slide block 53. By setting the support roller groups 5, the spacing between the support seats 32 can be adjusted according to the screening specifications, thereby improving the screening accuracy. The support roller groups 5 are machined with rollers that correspond to the discharge port 12. The quick-connect caliper 57 is fitted with symmetrically arranged teeth 58 on the side walls of the discharge port 12. Positioning teeth 59 that mate with the teeth 58 are machined on the inner wall of the caliper. The working length of the corresponding screening channel can be adjusted according to the size of the blueberries using the quick-connect caliper 57, enabling batch screening of good products. The discharge port 12 is machined on the workbench 1 below the guide groove 11. The conveying mechanism 4 is located below the discharge port 12. The conveying mechanism 4 includes a conveyor belt 41 and several flexible guide plates 42 mounted on the conveyor belt 41. The conveying direction of the conveyor belt 41 is perpendicular to the guide groove 11. Adjacent flexible guide plates 42 divide the conveyor belt 41 into smooth U-shaped or C-shaped conveying channels. The top of the flexible guide plate 42 is machined with a hanging lug 43 that connects to a U-shaped base 52. Multiple storage boxes 44 are connected to the end of the conveyor belt 41. The flexible guide plates 42 can guide the separated blueberries to the corresponding storage boxes 44.

[0031] The method of using this invention is as follows:

[0032] When using, prepare the corresponding workbench 1 according to the quantity of blueberries and the required time. Then, adjust the spacing between adjacent support roller groups 5 and the spacing between the slides 53 on each support roller group 5 according to the size of the screening scheme. This will allow the blueberries of the corresponding size to fall from the support roller groups 5 with the corresponding gaps. After the adjustment is completed, splice multiple workbench 1 together and connect the hanging ears 43 on the flexible guide plate 42 to the support roller group 5 to complete the preparation work. The blueberries to be screened are then fed into the storage hopper 21. The blueberries move along the sliding plate 22 toward different discharge ports 23 and fall into the guide groove 11. As the corresponding conveyor chain 31 in each guide groove 11 works, the blueberries gradually fall into the positioning groove 35 on the support 32. As the conveyor chain 31 moves, the distance between the supports 32 gradually increases. Smaller blueberries will fall from the support 32 first. According to the distance and size set by the support roller group 5, blueberries of the corresponding size will fall into the conveying channel enclosed by the corresponding flexible guide plate 42. Since the cross-section of the conveying channel is C-shaped or U-shaped, after the blueberries fall, they can use their rounded characteristics to make smooth contact with the conveyor belt 41, thereby converting gravity into motion force to reduce the damage to the blueberries caused by collision.

[0033] The blueberry screening method disclosed in this patent differs from traditional blueberry screening methods in that the blueberries are dragged during screening. After reaching the channel of the corresponding size, the blueberries will automatically fall. Compared with traditional blueberry screening, this reduces the collision between blueberries and the screen, and also significantly reduces the collision between blueberries, thereby effectively improving the yield of blueberries. For blueberries with larger diameters, this can greatly increase the yield of finished blueberries, thus effectively ensuring the economic benefits of blueberries.

[0034] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications and substitutions based on the technical solutions and inventive concepts provided by the present invention should be covered within the scope of protection of the present invention. It should be noted that the structures or components illustrated in the accompanying drawings are not necessarily drawn to scale, and the present invention omits descriptions of well-known components, processing technologies, and processes to avoid unnecessarily limiting the present invention.

Claims

1. A blueberry sorting device, comprising a workbench (1), a dispensing device (2), a screening mechanism (3), and a conveying mechanism (4), characterized in that: The workbench (1) has multiple parallel guide grooves (11) machined on it. The material distribution device (2) is installed at one end of the workbench (1). The material distribution device (2) includes a storage hopper (21) and a sliding plate (22) connected to the bottom of the storage hopper (21). The sliding plate (22) has a discharge port (23) aligned with each guide groove (11). The workbench (1) below the guide groove (11) is hollow. The screening mechanism (3) is installed sequentially inside the workbench (1) along the length of the guide groove (11). The screening mechanism (3) includes a conveyor chain (3). 1) Support (32) and tension wheel (33): Two conveyor chains (31) are symmetrically installed inside the workbench (1) along the centerline of the guide groove (11). The support (32) is installed sequentially on the outer wall of the conveyor chain (31), and the support (32) on the two conveyor chains (31) corresponds one to one. When the two support (32) are closed, they form a positioning groove (35) for storing blueberries. The two conveyor chains (31) rotate in opposite directions and drive the blueberries away from the dispensing device (2). The spacing between the conveyor chains (31) gradually increases along the conveying direction. Tensioning wheels (33) are installed on each of the conveyor chains (31). A material drop port (12) is machined on the workbench (1) below the guide groove (11). The conveying mechanism (4) is located below the material drop port (12). Multiple sets of support roller groups (5) for adjusting the spacing between adjacent conveyor chains (31) are arranged sequentially along the length direction on the conveyor chains (31) on both sides of the guide groove (11). The support roller group (5) includes a U-shaped base (52), a slide (53), a threaded adjusting rod (54), a support spring (55), and a free roller (56). 2) Installed below the conveyor chain (31), the U-shaped base (52) has two aligned grooves (51) machined on its surface. The slide (53) is slidably installed in the corresponding groove (51). The end of the U-shaped base (52) is horizontally and rotatably equipped with a threaded adjusting rod (54) for adjusting the position of the slide (53) in the groove (51). The support spring (55) is horizontally installed in the groove (51) at the end of the slide (53) away from the threaded adjusting rod (54). The slide (53) is equipped with a free roller (56) that supports the inner wall of the conveyor chain (31).

2. The blueberry sorting device according to claim 1, characterized in that: The support roller group (5) is machined with a quick-connect clamp (57) that matches the contour of the discharge port (12). The side walls on both sides of the discharge port (12) are machined with symmetrically arranged teeth (58). The inner wall of the clamp is machined with positioning teeth (59) that cooperate with the teeth (58).

3. The blueberry sorting device according to claim 1, characterized in that: The conveying mechanism (4) includes a conveyor belt (41) and several flexible guide plates (42) installed on the conveyor belt (41). The conveying direction of the conveyor belt (41) is perpendicular to the guide groove (11). Adjacent flexible guide plates (42) divide the conveyor belt (41) into smooth conveying channels in the shape of U or C. The top of the flexible guide plate (42) is machined with a hanging ear (43) that connects to the U-shaped base (52). Multiple storage boxes (44) are connected to the end of the conveyor belt (41).

4. The blueberry sorting device according to claim 1, characterized in that: The conveyor chain (31) is framed by four sprockets (36). The positions of the sprockets (36) on adjacent conveyor chains (31) are symmetrical along the guide groove (11). The drive sprockets (36) on the symmetrical conveyor chains (31) are connected to gears (37), and the two gears (37) mesh with each other.

5. The blueberry sorting device according to claim 1, characterized in that: The support (32) has a tapered slot (34) machined on the side wall away from the conveyor chain (31), and a shock-absorbing pad (38) is installed on the inner wall of the slot (34).

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