CN118023164A - Multichannel small fruit vision sorter - Google Patents
Multichannel small fruit vision sorter Download PDFInfo
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- CN118023164A CN118023164A CN202410440594.1A CN202410440594A CN118023164A CN 118023164 A CN118023164 A CN 118023164A CN 202410440594 A CN202410440594 A CN 202410440594A CN 118023164 A CN118023164 A CN 118023164A
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- 235000013399 edible fruits Nutrition 0.000 title claims abstract description 51
- 235000021022 fresh fruits Nutrition 0.000 claims abstract description 51
- 238000012216 screening Methods 0.000 claims abstract description 45
- 230000000007 visual effect Effects 0.000 claims abstract description 33
- 239000002184 metal Substances 0.000 claims abstract description 23
- 238000007599 discharging Methods 0.000 claims abstract description 9
- 238000001514 detection method Methods 0.000 claims description 6
- 230000009194 climbing Effects 0.000 claims description 5
- 238000005452 bending Methods 0.000 claims description 4
- 238000005192 partition Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 238000007664 blowing Methods 0.000 abstract description 2
- 240000000851 Vaccinium corymbosum Species 0.000 description 11
- 235000003095 Vaccinium corymbosum Nutrition 0.000 description 11
- 235000017537 Vaccinium myrtillus Nutrition 0.000 description 11
- 235000021014 blueberries Nutrition 0.000 description 11
- 230000005540 biological transmission Effects 0.000 description 6
- 230000003247 decreasing effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000002829 reductive effect Effects 0.000 description 3
- 244000175448 Citrus madurensis Species 0.000 description 2
- 235000017317 Fortunella Nutrition 0.000 description 2
- 244000141353 Prunus domestica Species 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 235000020251 goat milk Nutrition 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000000670 limiting effect Effects 0.000 description 2
- 230000036961 partial effect Effects 0.000 description 2
- 235000021018 plums Nutrition 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- RFSUNEUAIZKAJO-ARQDHWQXSA-N Fructose Chemical compound OC[C@H]1O[C@](O)(CO)[C@@H](O)[C@@H]1O RFSUNEUAIZKAJO-ARQDHWQXSA-N 0.000 description 1
- 229930091371 Fructose Natural products 0.000 description 1
- 239000005715 Fructose Substances 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000019771 cognition Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- 230000002452 interceptive effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
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Abstract
The invention discloses a multi-channel small fruit vision sorting machine, which belongs to the technical field of fresh fruit screening and comprises the following structures: a frame for mounting each component; the feeding area comprises a feeding frame, wherein the feeding frame is obliquely arranged and is in a bucket shape with a wide upper part and a narrow lower part; the chain net conveying belt comprises a plurality of chain nets, and the initial ends of the chain nets are supported and connected at the lower end opening of the feeding frame; according to the invention, fresh fruits conveyed on the frame openings of the chain frame are identified by the visual identification camera of the visual identification unit, and the opening and closing states of the frame openings of the chain frame are switched when the telescopic sheet metal control turning plate is driven to pass through the blanking openings by virtue of the cylinder corresponding to the PLC control screening module, so that the automatic specification screening of the fresh fruits is completed; the screening mode adopts a flap type falling type screening mode, is different from the current main stream screen screening and the damage of high-pressure airflow blowing to the fruit body, and improves the discharging quality; and reduce equipment workflow, reduce fruit body motion distance, reduce the residence time of fruit body on equipment, promote the use convenient degree of equipment.
Description
Technical Field
The invention discloses a fresh fruit screening technology, and particularly relates to a multi-channel small fruit vision sorting machine.
Background
Along with the further popularization of the small fruit market, the cognition of people on the small fruits is higher and higher, and the fresh small fruits enter the high-end market industry of the fruits, so that the small fruits become the main operation direction of growers. The small fruits comprise fruits with fruit diameters of less than 40mm, such as small kumquats, prunes, girls, goat milk fruits, plums, blueberries and the like, china is a large-population country with large purchasing power, along with the increasing of the living standard of people, the requirements of consumers on the quality of the small fruits are higher and higher, and people favor purchasing the small fruits with relatively low sizes and small fruits with relatively uniform sizes. Small fruit sorting is of great importance in pursuit of higher economic interest. As a grower in the yield-increasing and enrichment post industry, sorting is a key link in a sales chain, and the market at present has larger requirements on high-quality fruits and small fruit production areas have larger requirements on small fruit screening.
The main flow screening modes of the small fruit screening machine at present are a high-pressure airflow dropping mode and a vibration screen dropping mode, and the two screening modes have certain defects, for example, the vibration screen dropping adopts large equipment body, the assembly line is long, the fruit bodies of the fresh small fruits are easy to damage, and the integrity of the fruit bodies is difficult to ensure; the high-pressure airflow falls the equipment work flow that adopts many and equipment is bulky and still has certain damage to the fruit body, for example the blueberry can form one deck natural blueberry fruit powder on the surface at the growth in-process, like one deck white frost spills on the blueberry, this kind of material is that fructose liquid condenses and forms, can slow down the dehydration speed of blueberry fruit, avoid blueberry moisture to run off, but also can prevent that blueberry surface humidity is too high and breed the fungus, avoid appearing the blueberry rotten, reduce the quality of blueberry, and the high-pressure airflow falls the fruit powder on blueberry surface and has the damage. Therefore, both screening modes have certain damage to the discharging quality of the small fruits.
Disclosure of Invention
The invention aims to solve the problems and provide a multi-channel small fruit visual sorting machine.
In order to achieve the above purpose, the present invention provides the following technical solutions: a multi-channel small fruit vision sorting machine comprises the following structures:
a frame for mounting each component;
The feeding area comprises a feeding frame, wherein the feeding frame is obliquely arranged and is in a bucket shape with a wide upper part and a narrow lower part;
The chain net conveying belt comprises a plurality of chain nets, and the initial ends of the chain nets are supported and connected at the lower end opening of the feeding frame;
The arrangement conveyor belt is supported below the highest conveying position of the chain net conveyor belt and comprises a plurality of arrangement rails which are arranged at intervals, and the arrangement rails are separated by a plurality of erected partition boards;
the screening mechanism is supported below the arrangement conveying belt and comprises a chain conveying belt with a plurality of chain frames, a guide rail and a screening module;
the visual identification unit is positioned above the front end of the chain conveyor belt and comprises bracket components arranged on two sides of the chain conveyor belt and a plurality of groups of visual identification cameras which are arranged on the bracket components and used for detecting fresh fruits;
The discharging device is positioned between the upper part and the lower part of the chain type conveying belt and comprises a plurality of groups of power conveying belts which are arranged, and the power conveying belts correspond to fresh fruits with different specifications;
The screening module comprises a plurality of frame openings arranged on the chain frame, a turning plate hinged with the chain frame, a cylinder controlled by a PLC (programmable logic controller) and telescopic metal plates driven by the cylinder, wherein a blanking opening is formed in the upper part of the chain conveyor belt through the guide rail, the telescopic metal plates can be pushed down by the cylinder to control the turning plate to pass through the blanking opening so as to switch the opening and closing states of the frame openings of the chain frame, and the telescopic metal plates are arranged at intervals corresponding to the arrangement interval of the power conveyor belt below;
the mechanism of the turning plate triggering screening is as follows:
S1, when a visual recognition camera recognizes that fresh fruits below meet the specification of a corresponding power conveyor belt, when the fresh fruits pass through a feed opening above the power conveyor belt, the corresponding telescopic metal plates retract under the driving of a cylinder controlled by a PLC, the turning plate is opened downwards, after passing through the feed opening, the turning plate is jacked up for resetting after being contacted with the telescopic metal plates, and then the cylinder is reset;
S2, when the visual recognition camera recognizes that the fresh fruits below do not meet the specification of the corresponding power conveying belt, the air cylinder does not work when the fresh fruits pass through the discharging opening above the power conveying belt.
Through adopting above-mentioned technical scheme, carry out recognition and autofilter of many specifications to fresh fruit through screening module to correspond the fresh fruit of different specifications through power conveyer belt, accomplish continuous screening through the mode that the range interval set up, accomplish autofilter and reset function through this mechanism that turns over the board and trigger the screening.
Preferably, the chain net conveyer belt and the arrangement conveyer belt are all obliquely arranged, and the chain net conveyer belt and the arrangement conveyer belt convey fresh fruits in a climbing lifting mode.
Through adopting above-mentioned technical scheme, adopt the mode that climbs the slope and promote to make accumulational fresh fruit dispersion and edulcoration, fresh fruit granule separation enters into on the chain mouth of chain frame when conveniently getting into next flow.
Preferably, the receiving parts of the chain net conveyer belt and the arrangement conveyer belt and the receiving parts of the arrangement conveyer belt and the chain conveyer belt are respectively provided with a groove separating plate.
By adopting the technical scheme, the stacked fresh fruits are separated through the groove separating plates.
Preferably, the bracket component is symmetrically provided with masks at positions corresponding to the detection areas of the visual recognition cameras, and the size of the interval area between the masks can be adjusted through the bracket plates.
By adopting the technical scheme, the angle and the position of the mask plate are adjusted through the support plate, so that the function of adjusting the detection area of the visual recognition camera is achieved.
Preferably, the power conveyer belt is provided with a dismounting structure for dismounting the power conveyer belt from the rack, the dismounting structure comprises a bending plate arranged on the power conveyer belt and an L-shaped frame plate with one end locked with the rack through threads, and one end of the L-shaped frame plate, far away from the rack, is locked through a ball head quick-release pin.
By adopting the technical scheme, the quick assembly and disassembly between the power conveying belt and the frame are realized through the ball head quick-release pin.
Compared with the prior art, the invention has the beneficial effects that:
The fresh fruits (such as fruits with fruit diameters below 40mm, such as kumquats, prunes, girls, goat milk fruits, plums, blueberries and the like) of the small fruits conveyed on the chain frame openings are identified by a visual identification camera of a visual identification unit, and the opening and closing states of the chain frame openings are switched when a telescopic sheet metal control turning plate is driven to pass through the blanking openings by virtue of a cylinder corresponding to a PLC control screening module, so that automatic specification screening of the fresh fruits is completed; the screening mode adopts a flap type falling type screening mode, is different from the current main stream screen screening and the damage of high-pressure airflow blowing to the fruit body, and improves the discharging quality; the working flow of the equipment is reduced, the movement distance of the small fruits is reduced, the residence time of the small fruits on the equipment is reduced, and the using convenience of the equipment is improved; secondly, the capacity and the screening rate can be controlled by adjusting the distance between the guide rail and the blanking port or increasing and decreasing the number of the frame ports on the chain frame, and the power conveyer belt can be rapidly assembled and disassembled, so that the requirements of adapting to different small fruits by increasing and decreasing the power conveyer belts with different specifications can be expanded.
Drawings
FIG. 1 is a perspective view of a multi-channel small fruit vision sorter;
FIG. 2 is a side view of a multi-channel small fruit visual classifier;
Fig. 3 is a schematic structural view of a support plate in the visual recognition unit;
FIG. 4 is a schematic diagram of the structure of the screening module with and without triggered screening;
FIG. 5 is a partial schematic diagram of a screening module triggering screening;
FIG. 6 is a partial schematic diagram of a screening module when screening is not triggered;
FIG. 7 is a schematic view of a discharging device;
FIG. 8 is a schematic view of a power transmission belt;
fig. 9 is a schematic view of a detachable structure in the power transmission belt.
Reference numerals: 1. a feeding area; 2. a chain-net conveyor belt; 3. arranging a conveying belt; 4. a visual recognition unit; 5. a screening mechanism; 6. a discharging device; 7. a slotted plate; 8. a bracket member; 9. a mask; 10. a support plate; 11. a guide rail; 12. a chain frame; 13. a flexible metal plate; 14. turning plate; 15. a cylinder; 16. a power transmission belt; 17. a bending plate; 18. an L-shaped frame plate; 19. and (5) quick-release pins of the ball heads.
Detailed Description
In the following description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
A multi-channel small fruit visual separator, as shown in fig. 1-2, comprising the following structure:
a frame for mounting each component;
the feeding area 1 comprises a feeding frame which is obliquely arranged and is in a bucket shape with a wide upper part and a narrow lower part;
the chain net conveying belt 2 comprises a plurality of chain nets, and the initial ends of the chain nets are supported and connected at the lower end opening of the upper material frame;
the arrangement conveying belt 3 is supported below the highest conveying position of the chain net conveying belt 2 and comprises a plurality of arrangement rails which are arranged at intervals, and the arrangement rails are separated by a plurality of erected partition boards;
a screening mechanism 5 which is received below the arrangement conveyor 3 and which comprises a chain conveyor with a plurality of chain frames 12, a guide rail 11 and a screening module;
The visual identification unit 4 is positioned above the front end of the chain conveyor belt and comprises bracket parts 8 arranged on two sides of the chain conveyor belt and a plurality of groups of visual identification cameras which are arranged on the bracket parts 8 and used for detecting fresh fruits;
As shown in fig. 3, the bracket component 8 is symmetrically provided with the mask plates 9 at positions corresponding to the detection areas of the visual recognition cameras, the size of the interval areas between the mask plates 9 can be adjusted by the bracket plate 10, the bracket plate 10 is provided with arc grooves in threaded connection with the bracket component 8, so as to shield other areas on two sides from interfering with the detection areas of the visual recognition cameras, and the range of the detection areas can be controlled by properly adjusting;
The discharging device 6 is positioned between the upper part and the lower part of the chain conveyor belt and comprises a plurality of groups of power conveyor belts 16 which are arranged, and the power conveyor belts 16 correspond to fresh fruits with different specifications;
as shown in fig. 4, the screening module includes a plurality of frame openings formed on the chain frame 12, a turning plate 14 hinged with the chain frame 12, a cylinder 15 controlled by a PLC and a telescopic sheet metal 13 driven by the cylinder 15, wherein the cylinder 15 and the telescopic sheet metal 13 are mounted on a frame at the blanking opening, the upper part of the chain conveyor belt is provided with a blanking opening by the guide rail 11, and the telescopic sheet metal 13 can switch the opening and closing states of the frame openings of the chain frame 12 when the turning plate 14 is pushed and controlled to pass through the blanking opening under the driving of the cylinder 15. The capacity and the screening rate can be controlled by adjusting the distance between the guide rail 11 and the feed opening or increasing or decreasing the number of the openings on the chain frame 12 in the screening module.
As shown in fig. 7-9, the power transmission belt 16 is provided with a dismounting structure for dismounting from the frame, the dismounting structure comprises a bending plate 17 arranged on the power transmission belt 16 and an L-shaped frame plate 18 with one end locked with the thread of the frame, one end of the L-shaped frame plate 18 far away from the frame is locked by a ball head quick-release pin 19, and the ball head quick-release pin 19 is convenient for hand screwing to quickly dismount and assemble the power transmission belt 16. And because the power conveyer belt 16 can be assembled and disassembled quickly, the requirements of increasing and decreasing the power conveyer belts 16 with different specifications to adapt to different fruits can be expanded.
Fresh fruits are manually fed from the feeding area 1 after picking, after the fresh fruits are poured into a feeding frame, the fresh fruits fall into the starting end of the chain-net conveying belt 2 after being collected by the upper end opening and the lower end opening due to the bucket shape with wide upper part and narrow lower part, the chain-net conveying belt 2 is obliquely arranged, the chain-net conveying belt 2 adopts a climbing lifting mode, the fresh fruits are lifted along the climbing of the chain net on the chain-net conveying belt 2, and impurities such as dust attached to the fresh fruits fall from a chain-net gap through impurity removal and separation of the chain net;
The receiving parts of the chain net conveyer belt 2 and the arranging conveyer belt 3 and the receiving parts of the arranging conveyer belt 3 and the chain conveyer belt are respectively provided with a groove dividing plate 7, fresh fruits are scattered and fall into an arrangement track which is arranged at intervals through the groove dividing plates 7 when reaching the highest point of the upper part of the chain net conveyer belt 2, after the piled fresh fruits are separated by a partition plate to form a plurality of rows of conveying queues, the arranging conveyer belt 3 conveys the fresh fruits in a climbing lifting mode, the fresh fruits are further scattered, then the fresh fruits are scattered and fall onto the frame openings of the chain conveyer belt chain frame 12 at the highest point of the arranging conveyer belt 3 through the groove dividing plates 7, the chain net conveyer belt 2 moves, each time when fresh fruits carried by a group of frame openings pass through the visual identification unit 4, the visual identification camera above scans, the internal image sensor receives light rays which pass through the visual identification camera lens, optical signals are converted into electric signals, after the digital images are formed through the digital circuits, the digital images are further analyzed and processed through the PLC, the digital images are distinguished, and when the group of fresh fruits pass through the blanking openings, the frame openings are screened according to preset specifications.
Example 2
The mechanism by which the flap 14 triggers screening is as follows:
S1, when a visual recognition camera recognizes that fresh fruits below meet the specification of a corresponding power conveying belt 16, when the fresh fruits pass through a feed opening above the power conveying belt 16, the corresponding telescopic metal plate 13 is retracted under the driving of a cylinder 15 controlled by a PLC, and the cylinder 15 is reset after passing through the feed opening;
S2, when the visual recognition camera recognizes that the fresh fruits below do not meet the specification of the corresponding power conveying belt 16, the air cylinder 15 does not work when the fresh fruits pass through a feed opening above the power conveying belt 16;
As shown in fig. 5 and 6, when fresh fruits meet screening, the PLC controls the air cylinder 15 to drive the corresponding telescopic sheet metal 13 to retract when the fresh fruits are conveyed to the power conveying belt 16 with corresponding specifications, as the lower part is not supported by the guide rail 11 and the telescopic sheet metal 13 retracts when the fresh fruits pass through the feed opening, the interval between the telescopic sheet metal 13 and the guide rail 11 is larger than the length of the turning plate 14, so that the turning plate 14 is unsupported and is opened downwards along the hinge point, the fresh fruits lose the blocking of the turning plate 14, fall onto the power conveying belt 16 corresponding to the lower part from the frame opening of the chain frame 12, then the chain frame 12 drives the turning plate 14 to continue conveying, the turning plate 14 is jacked up to reset after being contacted with the telescopic sheet metal 13, and then the air cylinder 15 resets;
When fresh fruits do not meet the screening, when the fresh fruits pass through the blanking opening above the non-corresponding power conveying belt 16, the air cylinder 15 does not work, the interval between the telescopic sheet metal 13 and the guide rail 11 is smaller than the length of the turning plate 14, the turning plate 14 is limited to be incapable of being opened downwards, the fresh fruits are kept to be continuously conveyed on the chain frame 12 until being conveyed to the position above the power conveying belt 16 meeting the corresponding specification, the telescopic sheet metal 13 is arranged at intervals corresponding to the arrangement interval of the power conveying belt 16 below, and the fresh fruits can be reset after continuous screening.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (5)
1. A multichannel small fruit vision sorter is characterized by comprising the following structures:
a frame for mounting each component;
The feeding area (1) comprises a feeding frame, wherein the feeding frame is obliquely arranged and is in a bucket shape with a wide upper part and a narrow lower part;
The chain net conveying belt (2) comprises a plurality of chain nets, and the initial ends of the chain nets are supported and connected at the lower end opening of the upper material frame;
The arrangement conveying belt (3) is supported below the highest conveying position of the chain net conveying belt (2), and comprises a plurality of arrangement tracks which are arranged at intervals and are separated by a plurality of erected partition boards;
the screening mechanism (5) is supported below the arrangement conveyor belt (3) and comprises a chain conveyor belt with a plurality of chain frames (12), a guide rail (11) and a screening module;
The visual identification unit (4) is positioned above the front end of the chain conveyor belt and comprises bracket components (8) arranged on two sides of the chain conveyor belt and a plurality of groups of visual identification cameras which are arranged on the bracket components (8) and used for detecting fresh fruits;
the discharging device (6) is positioned between the upper part and the lower part of the chain type conveying belt and comprises a plurality of groups of power conveying belts (16) which are arranged, and the power conveying belts (16) correspond to fresh fruits with different specifications;
The screening module comprises a plurality of frame openings arranged on a chain frame (12), a turning plate (14) hinged with the chain frame (12), a cylinder (15) controlled by a PLC and a telescopic sheet metal (13) driven by the cylinder (15), wherein a blanking opening is formed in the upper part of the chain conveyor belt by the guide rail (11), the telescopic sheet metal (13) can be pushed to control the turning plate (14) to pass through the blanking opening under the driving of the cylinder (15) to switch the opening and closing states of the frame openings of the chain frame (12), and the telescopic sheet metal (13) is arranged at intervals corresponding to the arrangement interval of the power conveyor belt (16) below;
The mechanism of the turning plate (14) for triggering screening is as follows:
S1, when a visual recognition camera recognizes that fresh fruits below meet the specification of a corresponding power conveying belt (16), when the fresh fruits pass through a feed opening above the power conveying belt (16), the corresponding telescopic sheet metal (13) is retracted under the driving of a cylinder (15) controlled by a PLC, a turning plate (14) is opened downwards, after passing through the feed opening, the turning plate (14) is jacked up for resetting after contacting with the telescopic sheet metal (13), and then the cylinder (15) is reset;
s2, when the visual recognition camera recognizes that the fresh fruits below do not meet the specification of the corresponding power conveying belt (16), when the fresh fruits pass through a feed opening above the power conveying belt (16), the air cylinder (15) does not work.
2. The multi-channel small fruit visual sorting machine according to claim 1, wherein the chain net conveying belt (2) and the arrangement conveying belt (3) are obliquely arranged, and the chain net conveying belt (2) and the arrangement conveying belt (3) convey fresh fruits in a climbing lifting mode.
3. A multi-channel small fruit visual separator according to claim 2, wherein the receiving parts of the chain net conveyor belt (2) and the arranging conveyor belt (3) and the receiving parts of the arranging conveyor belt (3) and the chain conveyor belt are respectively provided with a groove separating plate (7).
4. A multi-channel small fruit visual separator according to claim 1, characterized in that the frame members (8) are symmetrically provided with masks (9) at positions corresponding to the detection areas of the visual recognition cameras, the size of the interval areas between the masks (9) being adjustable by frame plates (10).
5. The multi-channel small fruit visual sorting machine according to claim 1, wherein the power conveying belt (16) is provided with a dismounting structure for dismounting from the frame, the dismounting structure comprises a bending plate (17) arranged on the power conveying belt (16) and an L-shaped frame plate (18) with one end locked with the frame through threads, and one end of the L-shaped frame plate (18) far away from the frame is locked through a ball head quick-release pin (19).
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