Axial transportation roller type oil tea fruit seed and shell sorting machine

Abstract

The invention provides an axial transportation roller type oil tea fruit seed shell sorting machine, which relates to the field of agricultural product processing machinery, and comprises a rack, and a feed hopper, a sorting mechanism and a discharge hopper which are arranged on the rack, the sorting mechanism comprises two sorting rollers which are rotationally arranged on the rack and arranged side by side in the horizontal direction, and felt layers used for hooking camellia oleifera shells are laid on the surfaces of the sorting rollers; the removing mechanism is used for removing the camellia oleifera shells on the sorting roller; the conveying mechanism is arranged between the two sorting rollers and used for conveying the seed and shell mixture from the first ends of the sorting rollers to the second ends of the sorting rollers; the first driving mechanism is used for driving the two sorting rollers to rotate reversely so as to drive the camellia oleifera shells on the sorting rollers to be away from the conveying mechanism; a discharging opening of the feeding hopper faces the first end of the sorting roller; a feeding port of the discharging hopper faces the second end of the sorting roller. The oil tea fruit seed shell sorting device has the effect of improving the oil tea fruit seed shell sorting efficiency and the stability of the sorting effect.

Description

Technical Field

[0001] The present application relates to the field of agricultural product processing machinery, and in particular to an axial transport roller-type oil-tea camellia seed shell sorting machine. Background Art

[0002] Camellia oleifera is a nutritious, all-natural edible vegetable oil rich in unsaturated fatty acids, minerals, and other beneficial ingredients. It is produced by pressing the seeds from the camellia oleifera fruit. Separating the seeds from the shells after shelling is a critical step in camellia oleifera processing, as the separation directly impacts subsequent oil extraction efficiency and tea quality. Therefore, developing efficient and stable seed and shell separation technology is crucial for improving the quality of camellia oleifera production.

[0003] In the prior art, the patent application with publication number CN119175217A discloses a camellia shell seed sticking and separating machine, which winds a number of sticking strips on a sticking roller, feeds the material from above the sticking roller through a feed hopper, and the camellia shell mixture falls into the sorting space between the sticking roller and the cloth plate. When the seed shell mixture contacts the sticking strips, the rough camellia shells are taken away by the adhesion of the sticking strips, and are separated as the sticking roller continues to roll, thereby achieving sorting. In order to ensure the sorting effect, a swing mechanism is designed in the technology to make the cloth plate The material plate intermittently beats the sticky selection roller, thereby increasing the probability of the oil tea shells being adhered to and carried away by the sticky selection strip, achieving a higher sorting efficiency; however, the applicant found during long-term use of the equipment that although the structural design has a higher sorting efficiency, due to the intermittent queuing principle of the material plate, the gap between the lower edge of the material plate and the sticky selection roller will change, causing a small amount of oil tea seeds to fall before reaching the discharge port and mix into the oil tea shell collecting hopper, resulting in a small amount of oil tea seeds in the separated oil tea shells. Therefore, there is room for further research and development and improvement of this technology. Summary of the Invention

[0004] In order to improve the problems of low separation efficiency and unstable sorting effect in camellia oleifera seed shell sorting, the present application provides an axial transport roller type camellia oleifera seed shell sorting machine.

[0005] The present application provides an axial transport roller-type oil tea seed shell sorting machine that adopts the following technical solutions: An axial transport roller type oil tea seed shell sorting machine comprises a frame and a feed hopper, a sorting mechanism and a lower hopper which are sequentially arranged on the frame from top to bottom; The sorting mechanism comprises: The sorting rollers are rotatably arranged on the frame, and two of them are arranged side by side in the horizontal direction, and the surfaces of the sorting rollers are covered with a felt layer for hooking the oil-tea camellia shells; A cleaning mechanism is used to remove camellia shells from the sorting roller; A conveying mechanism is provided between the two sorting rollers and is used to convey the seed shell mixture from the first end of the sorting roller to the second end of the sorting roller; a first driving mechanism for driving the two sorting rollers to rotate in opposite directions, so as to drive the oil-tea camellia shells on the sorting rollers away from the conveying mechanism; The feed hopper is located above the sorting roller, and its discharge port faces the first end of the sorting roller; The lower hopper is located below the sorting roller, and its feed port faces the second end of the sorting roller.

[0006] Furthermore, the conveying mechanism includes a conveying guide chain and a plurality of carriers; The conveying guide chain includes a conveying sprocket, a conveying chain and a conveying motor; the conveying sprocket is rotatably connected to the frame, and two conveying sprockets are respectively provided at both ends of the sorting roller; the conveying chain is meshed and wound around the two conveying sprockets and is located between the two sorting rollers; the conveying motor is fixedly provided on the frame and is used to drive the conveying sprocket to rotate; The first end of the carrier is fixedly connected to the conveying chain, and the second end is provided with a carrying surface for carrying the seed shell mixture. The plurality of carriers are evenly distributed along the conveying chain track, and the plurality of carrying surfaces are spliced between the two sorting rollers to form a conveying channel for conveying camellia seeds. The carrying surface can transport at most one camellia seed in the width direction.

[0007] Furthermore, the cleaning mechanism includes: Two brush rollers are respectively provided below the two sorting rollers, and hard bristles are provided on their surfaces; The second driving mechanism is used to drive the two brush rollers to rotate in the same direction as the sorting roller above them, so as to clean the camellia shells on the two sorting rollers respectively.

[0008] Furthermore, a material guiding mechanism is provided between the feed hopper and the sorting roller, and the material guiding mechanism is used to guide the seed shell mixture in the feed hopper to between the first ends of the two sorting rollers; The material guiding mechanism comprises: a feed guide chute, which is arranged to be inclined downward from an end close to the feed hopper to an end away from the feed hopper, and is used to guide the seed shell mixture in the feed hopper to the buffer mechanism; A buffer mechanism, used to slow down the falling speed of the seed shell mixture; The vibration mechanism is arranged on the feeding guide chute and is used to control the shaking of the feeding guide chute.

[0009] Furthermore, one end of the feed guide chute close to the feed hopper is hinged to the frame; The vibration mechanism includes a vibration motor, a connecting rod and a tension spring. The vibration motor is arranged at the bottom of the feed guide trough, the connecting rod is fixedly arranged on the frame, one end of the tension spring is connected to the end of the feed guide trough away from the feed hopper, and the other end is connected to the connecting rod.

[0010] Furthermore, the buffer mechanism includes a buffer bracket and a buffer arc plate. The buffer bracket is fixedly arranged on the frame. The inner arc surface of the buffer arc plate faces the lower end of the feed guide trough and is located on the side of the first end of the sorting roller. The lower end of the buffer arc plate is arranged between the two sorting rollers.

[0011] Furthermore, side plates are provided on both sides of the buffer arc plate, the distance between the two side plates is smaller than the diameter of the sorting roller, and baffles extending to the top of the sorting roller are provided on the side plates.

[0012] Furthermore, an avoidance gap is provided between the baffle and the sorting roller for the oil tea shell to pass through, and the bottom of the baffle is provided with barrier bristles for blocking the oil tea seeds from passing through. The barrier bristles are soft bristles and are filled in the avoidance gap. The oil tea shell passes through the barrier bristles driven by the felt layer.

[0013] Furthermore, the sorting mechanism, the feed hopper, the material guide mechanism, and the lower hopper are arranged in multiple groups side by side in the horizontal direction, the first driving mechanism and the second driving mechanism are both located on the side of the first end of the sorting roller, the first driving mechanism simultaneously drives the multiple groups of sorting hoppers to rotate, and the second driving mechanism simultaneously drives the multiple groups of brush rollers to rotate; The first driving mechanism includes a first sprocket, a first chain and a first motor. A plurality of the first sprockets are coplanarly arranged. A first sprocket is coaxially fixedly connected to the rotating shaft of each sorting roller, and a first sprocket is coaxially fixedly connected to the rotating shafts of the two brush rollers at both ends. The first motor is fixedly arranged on the frame, and its output end is coaxially fixedly connected to a first sprocket. The first chain is meshed and wound around each first sprocket, and the meshing and winding direction is opposite to that of the two first sprockets on the rotating shafts of the two sorting rollers in the same group. The second driving mechanism includes a second sprocket, a second chain and a second motor. Multiple second sprockets are arranged in the same plane and staggered with the first sprocket. A second sprocket is coaxially fixedly connected to the rotating shaft of each brush roller, and a second sprocket is coaxially fixedly connected to the rotating shaft of the two sorting rollers at both ends; the second motor is fixedly arranged on the frame, and its output end is coaxially fixedly connected to a second sprocket; the second chain is meshed and wound around each second sprocket, and the winding direction is opposite to that of the two second sprockets on the rotating shafts of the two sorting rollers in the same group.

[0014] Furthermore, partitions are provided on both sides of the feeding port of the lower hopper, the conveying sprocket close to the second end of the sorting roller is located between the two partitions, and the top surface of the partition is higher than the conveying channel.

[0015] In summary, this application includes at least one of the following beneficial technical effects: 1. The camellia seed shell mixture is fed into the space between the first ends of the two sorting rollers through the feed hopper. The camellia shells are carried away by the felt layer on the sorting rollers rotating outward, so that the camellia shells are separated from the camellia seeds. The conveying mechanism continuously conveys the seed shell mixture from the first end to the second end of the sorting rollers along the axial direction (length direction) of the sorting rollers, which greatly increases the contact time between the seed shell mixture and the sorting rollers. By setting the sorting rollers to a length sufficient to completely separate the seeds and shells, the sorting rollers continuously carry the camellia shells away from the conveying mechanism during the conveying process of the seed shell mixture. The conveying mechanism carries the camellia seeds and continuously conveys the camellia seeds to the lower hopper, so that the camellia seeds and camellia shells are more thoroughly separated, solving the problem of incomplete sorting in existing seed shell sorting machines and reducing the probability of manual intervention, thereby greatly improving the efficiency of camellia seed shell sorting and the stability of the sorting effect. 2. By arranging a conveying guide chain and a carrier between the two sorting rollers, the bearing surfaces of the multiple carriers form a conveying channel between the two sorting rollers, thereby continuously conveying the seed-husk mixture. The bearing surface can convey at most one tea seed in the width direction. Since the size of tea husks is generally larger than that of tea seeds, this ensures that the conveying mechanism can transport the tea seeds and that the tea husks exceed the range of the bearing surface and contact the sorting rollers, so that most of the tea husks can be taken away by the sorting rollers, further improving the efficiency of tea seed shell separation. 3. The cleaning mechanism is set to continuously clean the tea husks on the sorting roller, so that there is no tea husk attached to the felt layer surface of the sorting roller when it passes through the conveying mechanism, thereby improving the efficiency of the sorting roller in hooking tea husks; 4. Driven by a vibration motor and in conjunction with a tension spring, the feed guide chute vibrates regularly, ensuring that the seed shell mixture is delivered to the sorting roller at a uniform speed and stable flow rate. By setting a buffer arc plate towards the lower end of the feed guide chute, the falling speed of the boring material can be effectively slowed down, avoiding scattering or accumulation of materials due to excessive impact, and ensuring that the material enters between the two sorting rollers in an appropriate state. 5. By arranging side plates on both sides of the buffer arc plate and baffles on the side plates, the first end of the sorting roller has a certain material accumulation capacity; an avoidance gap is set between the baffle and the sorting roller, and blocking bristles are set in the avoidance gap area, so that the tea shells hooked by the felt layer can pass through the blocking bristles, while the smooth tea seeds are blocked by the blocking bristles, so that the seed shell mixture accumulated at the first end of the sorting roller can be sorted normally, thereby further improving the efficiency of oil tea fruit seed shell sorting. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0018] Figure 2 yes Figure 1 Schematic diagram from another perspective with one of the sorting rollers and the lower hopper hidden.

[0019] Figure 3 It is a top view of an embodiment of the present application.

[0020] Figure 4 It is along Figure 3 Schematic diagram of the cross-sectional structure along the BB line.

[0021] Figure 5 It is along Figure 3 Schematic diagram of the cross-sectional structure along the CC line.

[0022] Figure 6 yes Figure 5 Schematic diagram of the enlarged portion B.

[0023] Figure 7 It is a left view of the embodiment of the present application.

[0024] Figure 8 yes Figure 1 Enlarged schematic diagram of part A.

[0025] Figure 9 It is a structural schematic diagram of the material guiding mechanism of an embodiment of the present application.

[0026] Figure 10 yes Figure 5 Schematic diagram from another perspective.

[0027] Figure markings: 1. Frame; 2. Feed hopper; 3. Material guiding mechanism; 31. Feed guide trough; 32. Vibration mechanism; 321. Vibration motor; 322. Connecting rod; 323. Tension spring; 33. Buffer mechanism; 331. Buffer bracket; 332. Buffer arc plate; 34. Side plate; 35. Baffle; 36. Barrier brush; 4. Sorting roller; 5. Cleaning mechanism; 51. Brush roller; 52. Second driving mechanism; 521. Second sprocket; 522. Second chain; 523. Second motor; 6. Conveying mechanism; 61. Conveying guide chain; 611. Conveying sprocket; 612. Conveying chain; 613. Conveying motor; 62. Carrying member; 621. Carrying surface; 7. First driving mechanism; 71. First sprocket; 72. First chain; 73. First motor; 8. Lower hopper; Partition 81. DETAILED DESCRIPTION

[0028] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0029] The embodiment of the present application discloses an axial transport roller-type oil-tea camellia seed shell sorting machine.

[0030] like Figure 1 、 Figure 2 As shown, the axial transport roller type oil tea seed shell sorting machine includes a frame 1 and a feed hopper 2, a sorting mechanism, and a lower hopper 8 arranged on the frame 1 from top to bottom; The sorting mechanism comprises: The sorting roller 4 is rotatably arranged on the frame 1, and two are arranged side by side in the horizontal direction, and a felt layer for hooking the oil tea shells is laid on the surface of the sorting roller 4; wherein the felt layer is a fiber cloth wrapped on the sorting roller 4, and the fiber cloth is obtained by using ultrafine fibers through the warp and weft weaving process. The limiting cloth obtained in this way has a very excellent sorting effect.

[0031] The cleaning mechanism 5 is used to remove the camellia shells on the sorting roller 4; The conveying mechanism 6 is provided between the two sorting rollers 4 and is used to convey the seed shell mixture from the first end of the sorting roller 4 to the second end of the sorting roller 4; The first driving mechanism 7 is used to drive the two sorting rollers 4 to rotate in opposite directions, so as to drive the oil-tea camellia shells on the sorting rollers 4 away from the conveying mechanism 6; The feed hopper 2 is a conical hopper with a rectangular cross section, located above the sorting roller 4, and its discharge port faces the first end of the sorting roller 4; The lower hopper 8 is located below the sorting roller 4 , and its feed port faces the second end of the sorting roller 4 .

[0032] When the sorting machine of the present invention is sorting tea seed shells, the seed shell mixture is put into the feed hopper 2, and the tea seed shell mixture is put between the first ends of the two sorting rollers 4 through the feed hopper 2. The tea shells are taken away by the felt layer on the sorting rollers 4 rotating outward, so that the tea shells and the tea seeds are separated. The conveying mechanism 6 continuously transmits the seed shell mixture from the first end to the second end of the sorting rollers 4 along the circumference of the sorting rollers 4. During the transmission process, the sorting rollers 4 continue to sort the tea seed shells, greatly increasing the contact time between the seed shell mixture and the sorting rollers 4, making the tea seeds and tea shells more fully sorted, and reducing the probability of manual intervention, thereby greatly improving the efficiency of tea seed shell sorting and the stability of the sorting effect.

[0033] Specifically, such as Figure 4 、 Figure 5 、 Figure 6 As shown, the conveying mechanism 6 includes a conveying guide chain 61 and a plurality of carriers 62 arranged on the conveying guide chain 61 .

[0034] The conveying guide chain 61 includes a conveying sprocket 611, a conveying chain 612, and a conveying motor 613. The conveying sprocket 611 is rotatably mounted on the frame 1 via a rotating shaft and a bearing seat. Two conveying sprockets 611 are arranged horizontally, and are located at both ends of the sorting roller 4. The conveying chain 612 is meshed and wound around the two conveying sprockets 611, and the distance between the two conveying sprockets 611 is greater than the distance between the sorting rollers 4, so that the horizontal section length of the conveying chain 612 can cover the length of the sorting roller 4. In this embodiment, the length of the sorting roller 4 is set to 1m, and the distance between the two conveying sprockets 611 is set to 1.3m. The conveying motor 613 is fixed to the frame 1 by bolts, and its output end is fixedly connected to the rotating shaft of one of the conveying sprockets 611.

[0035] The carrier 62 is an inverted L-shaped plate, such as Figure 6 As shown, the first end of the carrier 62 is fixed to the conveying chain 612 by screws, and the top surface of the second end of the carrier 62 is set as a bearing surface 621. In addition, each carrier 62 is fixed to each link of the conveying chain 612, and the bearing surfaces 621 of the carrier 62 located between the two sorting rollers 4 are coplanar to form a planar conveying channel. The conveying channel is a horizontal plane. The carrier 62 expands at the end of the sorting roller 4. This cycle is repeated to continuously convey the seed-shell mixture, and at the same time, cooperate with the sorting roller 4 to achieve the separation of camellia seeds and camellia shells.

[0036] Therefore, the conveying sprocket 611 is driven to rotate by the conveying motor 613, which drives the conveying chain 612 to rotate in a circular manner. The conveying channel constructed by the supporting member 62 continuously conveys the seed shell mixture located at the first end of the sorting roller 4 to the second end. During the conveying process, the oil tea shells above the conveying channel are continuously carried away by the felt layer on the sorting roller 4, thereby realizing the separation of the seed shells.

[0037] In order to ensure the efficiency of seed-shell separation, if the width of the bearing surface 621 is too narrow, it will be difficult to effectively transport the camellia seeds. If the width of the bearing surface 621 is too wide, the camellia shells in the middle of the bearing surface 621 will not be able to contact the sorting roller 4. Therefore, the width of the bearing surface 621 needs to be reasonably designed according to the size of the camellia seeds and camellia shells. Usually, the middle diameter of the camellia shells ranges from 20-40mm, and the middle diameter of the camellia seeds ranges from 8-15mm. In order to enable the camellia shells to fully contact the sorting roller 4, the bearing surface 621 needs to be able to transport at most one camellia seed in the width direction. Considering that the camellia seeds are oblate and the diameter of the ends of the camellia seeds is less than 8mm, as a preferred embodiment, the width of the bearing surface 621 is designed to be 8mm, and the distance between the intersection of the two sorting rollers 4 and the plane where the conveying channel is located is 15mm, so that the ends of the camellia seeds can contact the bearing surface 621 and can be transported by the bearing member 62. The camellia shells can fully contact the felt layer on the surface of the sorting roller 4 to ensure efficient separation.

[0038] On the other hand, Figure 5 As shown, the cleaning mechanism 5 includes a brush roller 51 and a second driving mechanism 52. The brush roller 51 is rotatably arranged on the frame 1 through a rotating shaft and a bearing seat, and is parallel to the axis of the sorting roller 4. Two brush rollers 51 are respectively arranged directly below the two sorting rollers 4. The brush rollers 51 have the same direction as the sorting rollers 4 directly above them. In addition, a plurality of hard bristles are evenly laid on the surface of the brush roller 51 to facilitate the removal of the oil tea shells on the surface of the sorting roller 4. Figure 5 In the direction shown, the sorting roller 4 and the brush roller 51 on the left side rotate in the counterclockwise direction, and the sorting roller 4 and the brush roller 51 on the right side rotate in the clockwise direction, so that the brush roller 51 pushes the camellia shells on the surface of the sorting roller 4 away from the conveying mechanism 6. The second driving mechanism 52 is used to drive the brush roller 51 to rotate.

[0039] In order to further improve the efficiency of seed shell sorting, the sorting mechanism, the feed hopper 2 and the lower hopper 8 are arranged in multiple groups side by side in the horizontal direction, such as Figure 7 As shown, in this embodiment, the sorting mechanism, the feed hopper 2 and the lower hopper 8 are each provided with two groups, the two lower hoppers 8 are integrally formed, and the two groups of conveying mechanisms 6 share the same conveying motor 613.

[0040] The first driving mechanism 7 and the second driving mechanism 52 are both located on the side of the first end of the sorting roller 4, and the first driving mechanism 7 drives the two groups of sorting hoppers to rotate simultaneously, and the second driving mechanism 52 drives the two groups of brush rollers 51 to rotate simultaneously.

[0041] Specifically, such as Figure 7 and Figure 8 As shown, the first drive mechanism 7 includes a first sprocket 71, a first chain 72, and a first motor 73. Multiple first sprockets 71 are coplanarly arranged. In this embodiment, seven first sprockets 71 are provided, one of which is coaxially fixedly connected to the output shaft of the first motor 73. Four of the first sprockets 71 are coaxially fixedly connected to the rotating shafts of the four sorting rollers 4, respectively. Two of the first sprockets 71 are coaxially fixedly connected to the rotating shafts of the two brush rollers 51 at both ends. The first chain 72 is meshed and wound around each first sprocket 71, and is meshed and wound oppositely to the two first sprockets 71 on the main shafts of the two sorting rollers 4 in the same group.

[0042] In addition, the second driving mechanism 52 includes a second sprocket 521, a second chain 522, and a second motor 523. Multiple second sprockets 521 are coplanar and staggered with the first sprocket 71. In this embodiment, seven second sprockets 521 are provided, one of which is coaxially fixedly connected to the output shaft of the second motor 523. Four of the second sprockets 521 are coaxially fixedly connected to the rotating shafts of the four brush rollers 51, and two of the second sprockets 521 are coaxially fixedly connected to the rotating shafts of the two sorting rollers 4 at both ends. The second chain 522 is meshed and wound around each second sprocket 521, and is meshed and wound oppositely to the two first sprockets 71 on the main shafts of the two brush rollers 51 in the same group.

[0043] By cleverly arranging the first sprocket 71, the first chain 72, the second sprocket 521 and the second chain 522, a single first motor 73 and a single second motor 523 are provided, which can synchronously drive multiple groups of sorting rollers 4 and multiple groups of brush rollers 51 to rotate in the required direction.

[0044] On the other hand, in order to facilitate the accurate delivery of the seed shell mixture from the discharge port of the lower hopper 8 to between the first ends of the two sorting rollers 4, in this embodiment, a material guiding mechanism 3 is provided between the feed hopper 2 and the sorting rollers 4.

[0045] Specifically, such as Figure 9As shown, the material guiding mechanism 3 includes a feed guide trough 31, a vibration mechanism 32, and a buffer mechanism 33. The cross section of the feed guide trough 31 is U-shaped, with a sealed end close to the feed hopper 2 and an open end away from the feed hopper 2. It is tilted downward from the end close to the feed hopper 2 to the end away from the feed hopper 2, so as to facilitate guiding the seed shell mixture from the feed hopper 2 to the buffer mechanism 33. The vibration mechanism 32 provided on the feed guide trough 31 controls the reciprocating vibration of the feed guide trough 31 to control the uniform discharge of the seed shell mixture. The buffer mechanism 33 buffers the seed shell mixture from the feed guide trough 31, reducing the speed of the seed shell mixture when it reaches the sorting roller 4, thereby avoiding material splashing due to excessive discharge speed.

[0046] The end of the feed chute 31 near the feed hopper 2 is hinged to the frame 1 via a hinge shaft. The vibration mechanism 32 comprises a vibration motor 321, a connecting rod 322, and a tension spring 323. The vibration motor 321 is bolted to the bottom of the feed chute 31. The connecting rod 322 is fixed to the frame 1 above the end of the feed chute 31 away from the feed hopper 2. Two tension springs 323 are provided. Two hanging holes are defined on either side of the feed chute 31. The connecting rod 322 has two annular grooves for the tension springs 323 to hook onto. One end of the tension spring 323 hooks into the hanging hole, and the other end hooks into the connecting rod 322. The annular grooves provide a position limit for the tension springs 323.

[0047] Therefore, by controlling the vibration frequency of the vibration motor 321 and cooperating with the tension spring 323, the feed guide chute 31 generates regular vibration, ensuring that the seed shell mixture is delivered to the buffer mechanism 33 at a uniform speed and stable flow rate.

[0048] like Figure 10 As shown, the buffer mechanism 33 includes a buffer bracket 331 and a buffer arc plate 332. The buffer bracket 331 is fixedly mounted on the frame 1. The buffer arc plate 332 is fixedly welded to the top of the buffer bracket 331 and is located on the side of the first end of the sorting roller 4. The inner arc surface of the buffer arc plate 332 is arranged toward the open end of the feed guide groove 31, and its lower end is facing between the two sorting rollers 4.

[0049] Therefore, after the seed shell mixture leaves the feeding guide groove 31, it directly collides with the buffer arc plate 332 to slow down, and under the action of gravity, rolls at a low speed along the buffer arc plate 332 to between the two sorting rollers 4, realizing low-speed feeding, so that the seed shell mixture can stably enter between the two sorting rollers 4.

[0050] In addition, in order to allow a portion of the seed hull mixture to accumulate between the first ends of the two sorting rollers 4, so as to increase the allowable flow rate of the seed hull mixture during the sorting process, in this embodiment, side plates 34 are provided on both sides of the buffer arc plate 332, and the distance between the two side plates 34 is smaller than the diameter of the sorting roller 4, so as to limit the seed hull mixture on the buffer arc plate 332 between the two sorting rollers 4. In addition, a baffle 35 is provided on the side plate 34, extending to the upper middle part of the sorting roller 4, as shown in FIG. Figure 9 、 Figure 10 As shown, by providing a side plate 34 and providing a baffle 35 on the side plate 34 extending to the top of the sorting roller 4, the bottom end of the sorting roller 4 has a certain material accumulation capacity.

[0051] To ensure that the husk mixture near the first end of the sorting roller 4 can still be sorted, a clearance gap is provided between the baffle 35 and the sorting roller 4 for the camellia husks to pass through. The height of the clearance gap should be greater than the maximum diameter of the camellia husks; preferably, the clearance gap is set to 40 mm. To ensure that the camellia husks can pass through the clearance gap while preventing the camellia berries from passing through it, a soft barrier bristle 36 is installed at the bottom of the baffle 35 to fill the clearance gap.

[0052] Due to the rough surface of the camellia shells, they can be hooked relatively stably on the felt layer of the sorting roller 4, allowing the camellia shells to overcome the resistance of the barrier bristles 36 and pass through the avoidance space. The surface of the camellia seeds is relatively smooth, and they rely on accumulation to reach the height of the baffle 35. When the sorting roller 4 rotates, it only provides radial support force to the camellia seeds, but no tangential force. The camellia seeds are always located in the inner curved area of the sorting roller 4 and do not have the tangential force to move outward. As a result, the camellia shells cannot overcome the resistance of the barrier bristles 36 and are intercepted between the two baffles 35. This ensures that the seed shell mixture accumulated at the first end of the sorting roller 4 can be normally separated, further improving the efficiency of the seed shell separation of the present application.

[0053] In addition, if Figure 10 As shown, the vertical cross-section of the lower hopper 8 is a right triangle, with the right-angled side located on the side of the lower hopper 8 away from the sorting roller 4. The top opening of the lower hopper 8 is set as its inlet, and the bottom is provided with a discharge port for the seed shell mixture to be discharged from the lower hopper 8. The width of the lower hopper 8 is smaller than the diameter of the sorting roller 4. This design can concentrate the discharge of camellia seeds and facilitate the collection of sorted camellia seeds.

[0054] Since the tea seeds that have escaped from the conveying channel may collide and rebound with the end support member 62 during the process of falling into the lower hopper 8, they cannot smoothly enter the lower hopper 8 (see the shell for details). Figure 4(The positional relationship between the support member 62 at the middle end and the lower hopper 8 is discussed in greater detail below.) Therefore, in this embodiment, rectangular partitions 81 are provided on both sides of the inlet of the lower hopper 8. The conveyor sprocket 611 near the second end of the sorting roller 4 is located between the two partitions 81, and the support member 62 near the conveyor sprocket 611 is also located between the two partitions 81. Furthermore, the top surface of the partition 81 is higher than the conveying channel, thereby limiting the position of tea seeds that have escaped the conveying channel, allowing them to accurately fall into the lower hopper 8, facilitating their collection.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. An axial transport roller type tea seed shell sorting machine, characterized in that: It includes a frame and a feed hopper, a sorting mechanism, and a lower hopper which are sequentially arranged on the frame from top to bottom; The sorting mechanism comprises: The sorting rollers are rotatably arranged on the frame, and two of them are arranged side by side in the horizontal direction, and the surfaces of the sorting rollers are covered with a felt layer for hooking the oil-tea camellia shells; A cleaning mechanism is used to remove camellia shells from the sorting roller; A conveying mechanism is provided between the two sorting rollers and is used to convey the seed shell mixture from the first end of the sorting roller to the second end of the sorting roller; a first driving mechanism for driving the two sorting rollers to rotate in opposite directions, so as to drive the oil-tea camellia shells on the sorting rollers away from the conveying mechanism; The feed hopper is located above the sorting roller, and its discharge port faces the first end of the sorting roller; The lower hopper is located below the sorting roller, and its feed port faces the second end of the sorting roller.

2. The axial transport roller type tea seed shell separator according to claim 1, characterized in that: The conveying mechanism includes a conveying guide chain and a plurality of bearing members; The conveying guide chain includes a conveying sprocket, a conveying chain and a conveying motor; the conveying sprocket is rotatably connected to the frame, and two conveying sprockets are respectively provided at both ends of the sorting roller; the conveying chain is meshed and wound around the two conveying sprockets and is located between the two sorting rollers; the conveying motor is fixedly provided on the frame and is used to drive the conveying sprocket to rotate; The first end of the carrier is fixedly connected to the conveying chain, and the second end is provided with a carrying surface for carrying the seed shell mixture. The plurality of carriers are evenly distributed along the conveying chain track, and the plurality of carrying surfaces are spliced between the two sorting rollers to form a conveying channel for conveying camellia seeds. The carrying surface can transport at most one camellia seed in the width direction.

3. The axial transport roller type tea seed shell separator according to claim 2, characterized in that: The cleaning mechanism comprises: Two brush rollers are respectively provided below the two sorting rollers, and hard bristles are provided on their surfaces; The second driving mechanism is used to drive the two brush rollers to rotate in the same direction as the sorting roller above them, so as to clean the camellia shells on the two sorting rollers respectively.

4. The axial transport roller type tea seed shell separator according to claim 3, characterized in that: A material guiding mechanism is provided between the feed hopper and the sorting roller, and the material guiding mechanism is used to guide the seed shell mixture in the feed hopper to between the first ends of the two sorting rollers; The material guiding mechanism comprises: a feed guide chute, which is arranged to be inclined downward from an end close to the feed hopper to an end away from the feed hopper, and is used to guide the seed shell mixture in the feed hopper to the buffer mechanism; A buffer mechanism, used to slow down the falling speed of the seed shell mixture; The vibration mechanism is arranged on the feeding guide chute and is used to control the shaking of the feeding guide chute.

5. The axial transport roller type tea seed shell separator according to claim 4, characterized in that: One end of the feed guide chute close to the feed hopper is hinged to the frame; The vibration mechanism includes a vibration motor, a connecting rod and a tension spring. The vibration motor is arranged at the bottom of the feed guide trough, the connecting rod is fixedly arranged on the frame, one end of the tension spring is connected to the end of the feed guide trough away from the feed hopper, and the other end is connected to the connecting rod.

6. The axial transport roller type tea seed shell separator according to claim 1, characterized in that: The buffer mechanism includes a buffer bracket and a buffer arc plate. The buffer bracket is fixedly arranged on the frame. The inner arc surface of the buffer arc plate faces the lower end of the feed guide groove and is located on the side of the first end of the sorting roller. The lower end of the buffer arc plate is arranged between the two sorting rollers.

7. The axial transport roller type tea seed shell separator according to claim 6, characterized in that: Side plates are provided on both sides of the buffer arc plate, the distance between the two side plates is smaller than the diameter of the sorting roller, and baffles extending to the top of the sorting roller are provided on the side plates.

8. The axial transport roller type tea seed shell separator according to claim 7, characterized in that: An avoidance gap is provided between the baffle and the sorting roller for the oil tea shell to pass through. The bottom of the baffle is provided with barrier bristles for blocking the oil tea seeds from passing through. The barrier bristles are soft bristles and are filled in the avoidance gap. The oil tea shell passes through the barrier bristles driven by the felt layer.

9. The axial transport roller type tea seed shell separator according to claim 3, characterized in that: The sorting mechanism, the feed hopper, the material guide mechanism, and the lower hopper are arranged in multiple groups side by side in the horizontal direction. The first driving mechanism and the second driving mechanism are both located on the side of the first end of the sorting roller. The first driving mechanism simultaneously drives multiple groups of sorting hoppers to rotate, and the second driving mechanism simultaneously drives multiple groups of brush rollers to rotate. The first driving mechanism includes a first sprocket, a first chain and a first motor. A plurality of the first sprockets are coplanarly arranged. A first sprocket is coaxially fixedly connected to the rotating shaft of each sorting roller, and a first sprocket is coaxially fixedly connected to the rotating shafts of the two brush rollers at both ends. The first motor is fixedly arranged on the frame, and its output end is coaxially fixedly connected to a first sprocket. The first chain is meshed and wound around each first sprocket, and the meshing and winding direction is opposite to that of the two first sprockets on the rotating shafts of the two sorting rollers in the same group. The second driving mechanism includes a second sprocket, a second chain and a second motor. Multiple second sprockets are arranged in the same plane and staggered with the first sprocket. A second sprocket is coaxially fixedly connected to the rotating shaft of each brush roller, and a second sprocket is coaxially fixedly connected to the rotating shaft of the two sorting rollers at both ends; the second motor is fixedly arranged on the frame, and its output end is coaxially fixedly connected to a second sprocket; the second chain is meshed and wound around each second sprocket, and the winding direction is opposite to that of the two second sprockets on the rotating shafts of the two sorting rollers in the same group.

10. The axial transport roller type tea seed shell separator according to claim 2, characterized in that: Partitions are provided on both sides of the feeding port of the lower hopper, and the conveying sprocket close to the second end of the sorting roller is located between the two partitions, and the top surface of the partition is higher than the conveying channel.

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