CN106179945A - An integrated processing production line for onion cleaning, sorting and cutting - Google Patents

Abstract

The invention relates to an agricultural product processing production line, in particular to an onion cleaning, sorting and cutting integrated processing production line which comprises vibrating screen equipment, first conveying equipment, cleaning equipment, second conveying equipment, sorting equipment and cutting equipment, wherein the vibrating screen equipment comprises: the end-to-end connection of the vibrating screen equipment is connected to the starting end of the first conveying equipment, the end-to-end connection of the first conveying equipment is connected to the feeding end of the cleaning equipment, the discharging end of the cleaning equipment is connected to the starting end of the second conveying equipment, the end-to-end connection of the second conveying equipment is connected to the feeding hole of the sorting equipment, the sorting equipment comprises a plurality of discharging ends, and a plurality of cutting equipment is installed below the discharging ends. The production line has the advantages of simple structure, scientific, reasonable and small size, high cleaning efficiency and high cleaning degree; the screening process is stable, the amplitude is even, the screening efficiency is high, the high comprehensive outstanding effect of precision, and possesses cutting high efficiency, cutting accuracy is high, the smooth effect of cutting to improve the work efficiency of production line on the whole.

Description

An integrated processing production line for onion cleaning, sorting and cutting

technical field

The invention relates to an agricultural product processing production line, in particular to an integrated processing production line for onion sieve cleaning, transportation, sorting and cutting.

Background technique

Onion has a large area of cultivation all over the world. The output of onion in the world is second only to tomato, accounting for about 10% of the total amount of vegetables in the world, and its resources are extremely rich. China is currently the largest onion producer in the world, with an annual output of 18.5 million tons. Our country mainly uses fresh food, and the deep processing of onions is still in its infancy. Relatively rare, with the rising cost of artificial labor and the gradual improvement of people's living standards, the demand for onion deep-processing products will continue to rise, and the onion processing equipment industry will surely usher in huge development opportunities. In the current onion processing industry, after the onion is harvested, it is necessary to remove impurities such as soil and skin on the onion, and then wash the onion and then classify it according to size, and then perform the next step of processing such as cutting and slicing; traditional In the processing of onions, cleaning, sorting, and cutting are all done manually, which is not only inefficient, time-consuming and labor-intensive, but also increases costs, and is not suitable for batch-scale and continuous integrated processing of onions;

For the processing and production of onions, the onions need to be cleaned first. However, the traditional onion cleaning equipment is a brush cleaning machine. Since the onions are relatively thin and soft, the brush cleaning will seriously damage the onions, which increases the screening work after cleaning, and Cause greater waste, onion is a herbaceous plant, the plant is relatively low, and the fruit is tender and juicy, which makes it vulnerable to pests and microorganisms. Therefore, in the process of growing onions, pesticides are often used. These pesticides, fertilizers, and germs are easy to attach to the rough surface of mushrooms. If they are not cleaned well, they may cause diarrhea or even pesticide poisoning. The amount of flushing is not enough, resulting in insufficient cleaning and poor cleaning effect;

In the traditional onion screening work, people often use large-scale sieve trays for screening, so the grade of the sorted onions is not fine enough, and the grading standards are not detailed enough, resulting in large individual differences after grading. If the mesh size of the sieve tray is increased, It will result in a large footprint and numerous processes, which not only consumes time and labor, but also results in low work efficiency and increased labor costs;

The processing and cutting of onion is generally to cut off the onion head and root, leaving the main body of the onion to obtain onion raw materials. The traditional cutting process is carried out manually or by separate equipment, which is time-consuming and labor-intensive, which increases labor costs and is less efficient. Low;

Therefore, for the field of onion processing, there is an urgent need for an efficient, practical, accurate and effective production line to achieve integrated equipment to improve the production efficiency of onion processing.

Contents of the invention

Aiming at the problems and deficiencies in the above-mentioned prior art, the present invention provides an assembly line equipment capable of performing a series of processing steps of dust removal, transportation, cleaning, sorting, and cutting, so as to realize automatic processing and save manual labor , improve work efficiency, the present invention is achieved in that a kind of onion cleaning, sorting and cutting integrated processing production line is composed of vibrating screen equipment (1), the first conveying equipment (2), cleaning equipment (3), the second conveying equipment (4), sorting equipment (5) and cutting equipment (6) constitute, wherein: the end of vibrating screen equipment (1) is connected to the beginning of the first conveying equipment (2), the end of the first conveying equipment (2) is connected To the feed end of the cleaning device (3), the discharge end of the cleaning device (3) is connected to the beginning of the second conveying device (4), and the end of the second conveying device (4) is connected to the inlet of the sorting device (5). At the feed port, the sorting device (5) includes a plurality of discharge ends, and several cutting devices (6) are installed below the discharge ends.

Further, the cleaning equipment (3) includes a cleaning frame (31), placed on the cleaning frame (31) to be provided with a cleaning drum (32), a feed chute (33) and a water adding device, the power unit (34 ) is placed on one side of the cleaning frame (31), the cleaning cylinder (32) has a front opening (35) and a rear opening (36), and the cleaning cylinder (32) is horizontally placed on the cleaning frame (31) in the direction of the front and rear openings , the power unit (34) is connected to the cleaning drum (32) and the water adding device, the water adding device is placed above the feeding chute (33) for replenishing water, and the bottom of the feeding chute (33) extends into the rear opening of the cleaning drum (32) (36), there are several glue sticks (37) vertically facing the rolling axis of the cleaning cylinder (32) in the interior of the cleaning cylinder (32). Sheet (38), several plectrums (38) are horizontally placed on the cleaning cylinder (32) inner surface by the same inclination direction and angle not parallel to the cleaning cylinder (32) shaft axis direction.

Further, the water adding device includes a water tank (39), a water pump (391), a water pipe (392), and a water outlet device (393). The water tank (39) is placed under the cleaning frame (31), and the water pump (391) is placed under the cleaning On the frame (31), the water tank (39) is connected to the water pump (391) through the water pipe (392), and the water pump (391) is connected to the water outlet device (393) placed above the feeding chute (33) through the water pipe (392) , the feed chute (33) is wide at the top and narrow at the bottom, extending into the rear opening (36) of the cleaning drum (32) in an inclined shape, and baffles ( 40), the water outlet device (393) is placed above the feeding chute (33) and fixed on the cleaning frame (31), and the water outlet device (393) covers the upper mouth of the feeding chute (33) horizontally and evenly discharges water .

Further, the sorting device (5) includes a chassis (51), a vibrating screen spring (52), a vibrating motor (53), a frame (54), a mesh sieve plate (55), and a guide plate (56) , the feed opening (57), the bottom of the frame (54) is connected and placed on the chassis (51) by several vibrating screen springs (52), and the vibrating motor (53) is placed above the frame (54), Several layers of mesh sieve plates (55) are installed from top to bottom in the frame (54), and the ends of the mesh sieve plates (55) are connected with corresponding guide plates (56) respectively, and the ends of the guide plates (56) are in the shape of Pointed, the end of the guide plate (56) is provided with a corresponding feeding port (57), and several sieve holes (58) are evenly distributed on the mesh sieve plate (55), and each layer of mesh sieve plate ( The sieve hole (58) aperture on 55) is identical, and the inner diameter of each layer of sieve hole (58) from the upper floor to the bottom layer of the mesh sieve plate (55) is arranged and installed in layers from large to small successively, and the mesh sieve plate ( 55) and the beginning of guide plate (56) are inclined downwards towards the end direction.

Further, the frame (54) is composed of a mullion (541), a beam (543), a horizontal frame (542), a side plate (544) and a rear plate (545), and the two side plates (544) face each other And yes, the mesh sieve plate (55) is placed between the two side plates (544), and the back plate (545) is placed on the rear side of the mesh sieve plate (55) and connected to the two side plates (544) respectively to form a Box type, several vertical frames (541) are fixed on the outer short side and the middle surface of the side plate (544), and several horizontal frames (542) are fixed on the upper and lower long sides of the side plate (544) and connected Corresponding mullions (541), several crossbeams (543) are fixed horizontally between the horizontal frames (542) on the two side plates (544), wherein, there are two horizontal beams (543) parallel and horizontally placed on the two horizontal frames In the middle of (542) and fixedly install vibration motor (53) in the middle thereof.

Further, the mullions (541) extend downwards, and the lowermost end of each mullion (541) is placed on the chassis (51) by connecting the vibrating screen springs (52) fixed on the chassis (51). , the end feeding openings (57) of each layer of the guide plate (56) are all staggered and embedded with each other.

Further, the cutting device (6) includes a casing (610) and a pushing mechanism (620), a feeding mechanism (630), a righting guide mechanism (640) and a cutting mechanism (650) placed in the casing (610). ), the pushing mechanism (620) is connected to the blanking mechanism (630) and placed below it, the pushing mechanism (620) is connected to the righting guide mechanism (640), and the cutting mechanism (650) is installed inside the righting guide mechanism (640).

Further, the pushing mechanism (620) includes a cylinder (621), a piston rod (622), and a push plate (623), the cylinder (621) is fixed on the casing (610), and the cylinder (621) is connected to the piston rod (622 ), the end of the piston rod (622) is connected to the push plate (623); the feeding mechanism (630) includes a feed hopper (631), a piston door panel (632), a piston extension spring (633), and a feed hopper ( 631) is placed on the casing (610) in a conical shape, the lower opening of the feed hopper (631) contacts the plate surface of the piston door plate (632), the bottom surface of the piston door plate (632) is connected to the push mechanism (620), and the piston door plate On the front surface of (632) or on the side, connect the piston extension spring (633) that is installed on the casing (610).

Further, the righting guide mechanism (640) includes a righting link (641), a righting roller (642), a righting guide rod (643), a righting guide plate (644), a guide block (645), and a righting guide piece (646 ), guide rollers (647) and righting tension springs (648), two righting connecting rods (641) are fixed on the inner top wall of the casing (610) and extend downwards to fix the righting rollers (642), and the righting rollers (642) Facing the pushing direction of the pushing mechanism (620), two righting guide rods (643) are fixed on the inner bottom wall of the casing (610) to extend in the pushing direction of the pushing mechanism (620) and the distance is gradually reduced. The end of (643) faces two pieces of righting guide plates (644) that are fixed on the inner wall of the casing (610), and two pieces of righting guide plates (644) face each other and stand horizontally, and the top of the righting guide plates (644) is provided with a The guide block (645) on the inner top wall of the casing (610); the beginning ends of the two righting guide rods (643) are respectively equipped with parallel guide rollers (647), and the guide rollers (647) are connected to their respective The righting extension spring (648) fixed on the inner bottom wall of the casing (610); the two sides of the pushing direction of the pushing direction of the pushing mechanism (620) of the said righting guide plate (644) are respectively equipped with a pair of right-angled Triangular righting guide vanes (646); the hypotenuses of the righting guide vanes (646) are relative up and down.

Further, the cutting mechanism (650) includes a cutting motor (651), a cutting blade (652), the cutting motor (651) is placed horizontally on the outside of the righting guide plate (644), and the cutting motor (651) connects two cutting blades (652 ), two cutting blades (652) are placed on the inner side of the righting guide plate (644) respectively close to the righting guide plate (644) on both sides but do not touch the righting guide plate (644); The middle gradually becomes thicker and thinner. The outer sides of the two righting guide plates (644) are connected to the inner side wall of the casing (610) through several compression springs (653), and the righting guide plates (646) move towards the pushing mechanism (620 ) flares outwards in the direction.

The working principle of the present invention is introduced: an onion cleaning, sorting and cutting integrated processing production line, which feeds the harvested onions to the vibrating sieve equipment (1), and the vibrating sieve equipment (1) plays the role of vibrating, transporting, and sieving off onions. Skin, impurities, soil, etc., and transport the onion to the conveying equipment. The first conveying equipment (2) is a lifting conveyor belt, which transports the onion material to the cleaning equipment (3) for cleaning. After cleaning, it falls into the second The conveying device (4), the second conveying device (4) is a conveying device with the functions of raising material and filtering water, conveying the onion material to the feeding end of the sorting device (5), and the onion material enters the sorting device (5) Finally, it is screened according to the size of the head, sorted into several sizes with different sizes, and discharged to the cutting device (6) to complete the cutting of onions, to achieve the processing purpose of the production line, improve work efficiency, save manpower.

When the cleaning equipment (3) is in use, the onion material is poured into the feeding chute (33) from a high place through the first conveying equipment (2), and in the feeding chute (33) comes into contact with the clean water from the water adding device , along with clear water, the onion material slides into the rear opening (36) of the cleaning drum (32) from the feed chute (33), that is, the inside of the cleaning drum (32), and the cleaning drum (32) is provided by the power unit (34). Rotate on the cleaning frame (31) after the rotation power, thereby driving the onion material to roll and stir in the cleaning drum (32), because the glue stick (37) is a soft material, so it will not cause damage to the onion skin and surface pulp , but between the onion and the onion in the cleaning drum (32), between the onion and the inner wall of the drum, between the onion and the glue stick (37), between the onion and the water phase, rub and collide with each other to achieve the cleaning effect until the onion It meets the requirements of peeling and cleaning. Different from the traditional brush cleaning machine, while cleaning, the onion material is soaked and stirred with clean water, which can fully achieve the cleaning effect, and can also remove harmful substances attached to the surface of the onion. and the purpose of cleaning, the effect is all good; on the inner surface of the cleaning cylinder (32), there are also several plectrums (38) distributed, and several plectrums (38) are not parallel to the same direction of the cleaning cylinder (32) shaft axis. The direction of inclination and the angle are placed horizontally on the inner surface of the cleaning cylinder (32). It is not enough to stir the onion material only by the glue stick (37), and the glue stick (37) is difficult to stir the water body, and it is difficult to achieve the best cleaning effect and cleaning efficiency only by the rotation of the cleaning drum (32). After adding the paddle (38), the paddle (38) can effectively stir and roll the water body and the onion material during rotation, and strengthen the material and material, material and glue stick (37), The friction contact efficiency between the material and the water body effectively increases the cleaning effect and cleaning efficiency; the water adding device includes a water tank (39), a water pump (391), a water pipe (392), a water outlet device (393), and the water tank (39) Below the cleaning frame (31), the water pump (391) is placed on the cleaning frame (31), and the water tank (39) is connected to the water pump (391) by a water pipe (392). The water outlet device (393) above the feed chute (33). The feed chute (33) is wide at the top and narrow at the bottom, and extends into the rear opening (36) of the cleaning drum (32) in an inclined shape. Baffles (40) are arranged on both sides of the feed chute (33). ). The water outlet device (393) is placed above the feeding chute (33) and fixed on the cleaning frame (31). The water outlet device (393) covers the top of the feeding chute (33) laterally and discharges water evenly. The water pump (391) pumps clean water from the water tank (39) upwards into the water outlet device (393), and the water outlet device (393) is placed at a high position, which can send water to the high place and then fall from the high place, with the release of a potential energy, so that The water flow can be washed onto the surface of the onion at a certain speed, and the water outlet device (393) is as long as the upper opening of the feed chute (33), so that the entire cross section of the feed chute (33) can be covered by the water flow, reaching the cleaning area. The maximization of the onion makes the onion fully contact with the water flow, which increases the cleaning efficiency and cleaning degree. After the onion is soaked in clear water, it enters the cleaning drum (32), and finally achieves the best cleaning effect. When the cleaning is completed, stop the cleaning drum (32) from rotating. The onion and water are poured out from the front opening (35) of the cleaning drum (32) and filtered to obtain the onion after cleaning. Therefore, the cleaning device (3) will not damage the surface layer of the onion pulp, and can also remove harmful substances attached to the surface layer of the onion, so as to achieve the purpose of cleaning and cleaning, and has the excellent effect of high cleaning efficiency and high cleaning degree. The structure of the present invention is reasonable Science, small size.

The cleaned onion material is transported to the sorting device (5) through the second conveying device (4), and the frame (54) vibrates up and down on the vibrating screen spring (52) under the vibration of the vibrating motor (53). After the onion material enters the sorting equipment (5), it first falls on the first mesh sieve plate (55). Under the action of vibration, the mesh sieve plate (55) starts to move in an inclined direction due to the inclined slope. , passing through the sieve holes (58) distributed on the mesh sieve plate (55), since the uppermost sieve hole (58) has the largest aperture, most of the onion materials whose diameter is smaller than the uppermost sieve hole (58) aperture Fall into the next layer of mesh sieve plate (55) from the sieve hole (58), and the onion material that cannot fall continues to enter the guide plate (56) toward the discharge port ( 57) rolling, flowing out from the feeding port (57); the sieve hole (58) aperture of the mesh sieve plate (55) of the second layer is smaller than the sieve hole (58) aperture of the first layer, and the material continues to flow in the second layer of mesh Repeat the original work on the first layer on the perforated sieve plate (55)—continue to sieve the small onion material downwards, and the materials that cannot pass through the second layer of mesh sieve plate (55) are guided from the second layer. Plate (56) enters the feed opening (57) of the second layer, completes the screening of the second stage, and the onion material entering the third layer of mesh sieve plate (55) continues to repeat the above-mentioned screening work until the last layer The mesh sieve plate (55) sieves onion materials of different sizes and sizes and classifies them uniformly to achieve the purpose of sorting sizes;

Mullions (541), transverse frames (542) and crossbeams (543) are interconnected to form the outer skeleton of the box formed by side plates (544) and rear plates (545), increasing its strength, and the mullions (541) and transverse frames (542) are all connected and covered by extending the edge of the side plate (544) and the rear plate (545), forming the support and protection of key stress points, ensuring the stability of the frame (54) in vibration, and allowing it to Integralization enables the mesh sieve plate (55) to be evenly stressed during vibration, and the overall amplitude is consistent, which improves the screening stability of the equipment, improves the screening efficiency, and also increases the quality of the equipment, thereby ensuring the service life of the equipment; The frame (541) is connected to the vibrating screen spring (52), so that the mullion (541) and the vibrating screen spring (52) act as supporting points to achieve the best effect of vibration, while ensuring that the main force of the vibration is controlled by the mullion (541 ) bearing, distributed from the mullion (541) to the horizontal frame (542), the beam (543) and the mesh screen plate (55), which can ensure the overall force in the vibration of the equipment, and achieve the overall consistency of the vibration frequency of the vibrating screen to achieve the best Excellent vibration effect and force uniformity;

The sorted onion materials need to be collected and cut separately. Since the structure of this equipment is reasonable and rigorous, the overall structure is relatively compact. In order to achieve a reasonable size of the equipment, reduce the occupied area and avoid complex and huge structural design, based on the overall structure The original intention of simplifying the design is to stagger the position of the discharge port (57) at the end of the guide plate (56), avoiding the problem of overlapping stations between the upper and lower guide plates (56) when the material is collected, so that the upper and lower layers can be carried out simultaneously. The materials on the layer guide plates (56) are collected or processed at the same time, so that there is no need for too much space between the guide plates (56) structurally, the sorting equipment (5) can be minimized, and the structure is simplified. Scientific, reasonable and compact, with excellent effects of reducing floor space and saving resources;

The sorting production equipment has a simplified structure, scientific and reasonable compactness, reduces floor space and saves resources, and has a stable vibration force structure design, which makes the vibrating screening process stable, uniform in amplitude, high in screening efficiency, and high in precision.

After the sorted onions enter the cutting device (6), under the action of the pushing mechanism (620), the onion materials are dropped and pushed in a single and orderly manner in the unloading mechanism (630) at a uniform speed, avoiding the If multiple onion materials accumulate and cause problems such as blockage of the cutting opening or disordered cutting positions, the righting guide mechanism (640) can select the individual position of the onion, and transport the onion materials adjusted to the correct orientation to the cutting mechanism (650), ensuring cutting The accuracy of the cutting position at the time makes the standard of the cut onion slices uniform, improving the yield and cutting efficiency;

During the working process, the cylinder (621) drives the piston rod (622) to perform repeated telescopic movements, and when the piston rod (622) stretches out, it drives the push plate (623) to move forward to push the onion material in the station , pushed to the next station, when the piston rod (622) retracts, the piston door (632) below the feed hopper (631) will be opened, allowing an onion to fall into the station in front of the push plate (623) When the piston rod (622) is pushed again, the piston door panel (632) under the feed hopper (631) is closed, and other onions are prohibited from falling, so that the onion materials can be dropped and pushed in an orderly manner in the repeated process. The work of piston extension spring (633) is used for fixing and resetting piston door panel (632);

The onion material is pushed to the centering guide mechanism (640), and the onion material first enters the pole position of the centering guide rod (643), and the upper part of the onion material touches the centering roller (642) during the pushing process. Onion tooth) upwards, then it will touch the righting roller (642), forcing the onion to fall from one of the two sides of the righting roller (642), and keep the onion rolling forward in the direction of the side. The righting guide rod (643) enters the limit channel formed by the righting guide plate (644) and the guide block (645), so that the onion will be deflected according to the stress condition and fully seated, reaching the body angle required for cutting;

When the individual onion contacts the guide roller (647) under the pushing action of the pushing mechanism (620), it can advance into the centering guide rod (643) along the guide roller (647) with the least resistance effect, and enter the centering guide rod (643) when the onion individual accidentally After being pushed crookedly by the pushing mechanism (620), the individual onion will deflect back to the advancing direction of the centering guide rod (643) under the action of the centering tension spring (648) according to the force direction, so as to ensure that the onion presses The function of rolling in the predetermined direction improves the accuracy and precision of righting and guiding;

The righting guide (646) is used to gather the onions from all possible directions to the entrance of the limiting channel and maintain the required rolling direction to improve positioning efficiency and positioning accuracy;

Although the cut onions are all of the same size through sorting, individual differences still exist. When each onion has a different individual, the opened righting guide piece (646) will play a guiding effect of gathering and collecting. The righting guide plate (644) is kept balanced by the active force of the compression spring (653), and when individual onions with differences enter into the righting guide piece (646), the compression spring (653) will play a role in adjusting the gap between the righting guide pieces (646). The role of the gap and pressure avoids the problems of onion jamming and accumulation blockage, so that the cutting device is suitable for cutting onions of various shapes and sizes, improving the cutting efficiency and cutting accuracy of the equipment and ensuring the safety of the cutting equipment (6). Smooth and smooth performance, thereby improving the work efficiency of the production line as a whole.

The onion that enters between the righting guide plates (644) is moved forward by the cutting blade (652), and the two ends (onion teeth, onion root) are cut off, and the cutting process of the onion is completed;

To sum up, an onion cleaning, sorting and cutting integrated processing production line provided by the present invention has the following advantages:

(1) The cleaning equipment will not damage the pulp surface of the onion through the use of glue sticks, and the harmful substances attached to the surface of the onion can be removed by stirring and rinsing with water, so as to achieve the purpose of cleaning and cleaning, and it has high cleaning efficiency and high cleaning degree. Effect.

(2) The entire production line has a simplified structure, scientific and reasonable compactness, reduces floor space and saves resources, and has a stable vibration force structure design, which makes the vibrating screening process stable, uniform in amplitude, high in screening efficiency, and high in precision.

(3) The cutting equipment realizes the orderly and individual falling and pushing of onion materials in the repeated process; the uprighting mechanism makes the onion deflect and completely position according to the stress condition, so as to achieve the body angle required for cutting; avoid The problem of onion jamming, accumulation and blockage is eliminated, so that the cutting device is suitable for onion cutting work of various shapes and sizes, and the accuracy and precision of righting and guiding are improved; the cutting efficiency and cutting precision of the equipment are improved and the cutting equipment is guaranteed. The smooth and smooth performance of the machine can improve the work efficiency of the production line as a whole.

(4) The present invention has reasonable and scientific structure, small and exquisite body shape, and realizes the integrated assembly line production of onion processing.

Description of drawings

Fig. 1 is the structural connection schematic diagram of the present invention;

Fig. 2 is the three-dimensional structure schematic diagram of onion cleaning equipment;

Fig. 3 is a schematic diagram of the internal structure of the cleaning drum;

Fig. 4 is a side view of the onion cleaning equipment.

Fig. 5 is the structural connection schematic diagram of sorting equipment;

Fig. 6 is the side view of sorting equipment;

Fig. 7 is the side upward view of sorting equipment;

Fig. 8 is a three-dimensional structural schematic diagram of a cutting device;

Fig. 9 is a schematic diagram of the internal structure of the cutting device;

Figure 10 is a schematic diagram of the internal structure of the cutting device;

Among them: 1—vibrating screen equipment, 2—first conveying equipment, 3—cleaning equipment, 4—second conveying equipment, 5—sorting equipment, 6—cutting equipment, 7—onion body, 8—onion head, 9— Onion root, 31—cleaning rack, 32—cleaning drum, 33—feed chute, 34—power unit, 35—front opening, 36—rear opening, 37—glue stick, 38—pick, 39—water tank, 391—water pump, 392—water pipe, 393—water outlet device, 40—baffle plate, 51—bottom frame, 52—vibrating screen spring, 53—vibrating motor, 54—frame, 55—mesh sieve plate, 56—guiding plate , 57—feeding port, 541—vertical frame, 543—beam, 542—horizontal frame, 544—side plate, 545—rear plate, 610—casing, 620—push mechanism, 630—feeding mechanism, 640—righting Guide mechanism, 650—cutting mechanism, 621—cylinder, 622—piston rod, 623—push plate, 631—feed hopper, 632—piston door plate, 633—piston extension spring, 641—righting connecting rod, 642—righting roller, 643—righting guide rod, 644—righting guide plate, 645—guiding pressure block, 646—righting guide piece, 647—guiding roller, 648—righting extension spring, 651—cutting motor, 652—cutting blade, 653—pressure spring.

specific embodiment

Embodiment 1: An onion cleaning, sorting and cutting integrated processing production line is composed of vibrating screen equipment 1, first conveying equipment 2, cleaning equipment 3, second conveying equipment 4, sorting equipment 5 and cutting equipment 6, wherein: The end of the vibrating screen equipment 1 is connected to the beginning of the first conveying equipment 2, the end of the first conveying equipment 2 is connected to the feeding end of the cleaning equipment 3, the discharge end of the cleaning equipment 3 is connected to the beginning of the second conveying equipment 4, and the first The end of the second conveying device 4 is connected to the feed inlet of the sorting device 5 , and the sorting device 5 includes a plurality of discharge ends, and the discharge ends are all connected to corresponding cutting devices 6 . Feed the harvested onions to the vibrating screen equipment 1, the vibrating screen equipment 1 can vibrate and transport, sieve off the onion skin, impurities, soil, etc., and transport the onions to the conveying equipment, the first conveying equipment 2 is for lifting The conveyor belt transports the onion material to the cleaning device 3 for cleaning. After cleaning, it falls into the second conveying device 4. The second conveying device 4 is a conveying device with the functions of lifting material and filtering water, and conveys the onion material to the distribution point. At the feeding end of the sorting device 5, the onion material enters the sorting device 5 and is screened according to the size of the head, sorted into several sizes of different sizes, and discharged to the cutting device 6 to complete the cutting of the onion , to achieve the processing purpose of the production line, improve work efficiency and save manpower.

Described cleaning equipment 3 comprises cleaning frame 31, is placed on cleaning frame 31 and is provided with cleaning drum 32, feeding chute 33 and water adding device, and power unit 34 is placed on cleaning frame 31 side, and cleaning drum 32 has front Opening 35 and rear opening 36, cleaning cylinder 32 is horizontally placed on cleaning frame 31 by the direction of front and back opening, and power unit 34 is connected to cleaning cylinder 32 and water adding device, and water adding device is placed on feed chute 33 tops and replenishes water, feeds The bottom of the material chute 33 extends into the rear opening 36 of the cleaning drum 32 , and the inside of the cleaning drum 32 is staggered with several glue sticks 37 vertically facing the rolling axis of the cleaning drum 32 . When in use, the onion material is poured into the feeding chute 33 from a high place manually or by lifting equipment, and in the feeding chute 33, it contacts the clear water from the water adding device. With the clear water, the onion material flows from the feeding chute 33 slides into the rear opening 36 of the cleaning drum 32, that is, the inside of the cleaning drum 32, and the cleaning drum 32 rotates on the cleaning frame 31 after the rotational power provided by the power unit 34, thereby driving the onion material to roll and stir in the cleaning drum 32, Because glue stick 37 is soft material, therefore can not cause damage to onion epidermis and surface layer pulp, but between onion and onion in cleaning drum 32, between onion and cylinder inner wall, between onion and glue stick 37, onion and The water phases rub and collide with each other to achieve the cleaning effect until the onion meets the peeling and cleaning requirements. Different from the traditional brush cleaning machine, while cleaning, the onion material is also soaked and stirred with clean water, which can fully To achieve the cleaning effect, it can also remove the harmful substances attached to the surface of the onion, to achieve the purpose of cleaning and cleaning, and the effect is excellent;

Several plectrums 38 are also distributed on the inner surface of the cleaning drum 32, and several plectrums 38 are horizontally placed on the inner surface of the cleaning drum 32 according to the same inclination direction and angle not parallel to the axis direction of the cleaning drum 32 shaft. It is not enough to stir the onion material only by the glue stick 37, and the glue stick 37 is difficult to stir the water body. It is difficult to achieve the best cleaning effect and cleaning efficiency only by the rotation of the cleaning drum 32 itself. Therefore, adding the paddle 38 Finally, the plectrum 38 can effectively stir and roll the water body and the onion material in rotation, and strengthen the frictional contact efficiency between the material and the material, the material and the glue stick 37, and the material and the water body, thereby effectively Increased cleaning effect and cleaning efficiency;

Described water adding device comprises water tank 39, water pump 391, water pipe 392, water outlet device 393, and water tank 39 is placed below cleaning frame 31, and water pump 391 is placed on cleaning frame 31, and water tank 39 is connected to water pump 391 by water pipe 392, and water pump 391 It is connected to a water outlet device 393 placed above the feed chute 33 through a water pipe 392 . The feed chute 33 is wide at the top and narrow at the bottom, extending obliquely into the rear opening 36 of the cleaning drum 32 , and baffles 40 are provided on both sides of the feed chute 33 . The water outlet device 393 is placed above the feeding chute 33 and fixed on the cleaning frame 31. The water outlet device 393 covers the upper opening of the feeding chute 33 laterally and discharges water evenly. The water pump 391 pumps clean water from the water tank 39 to the top into the water outlet device 393. The water outlet device 393 is placed at a high position, which can send water to the high point and then fall from the high point. It has a release of potential energy, so that the water can be washed at a certain speed. On the surface of the onion, the water outlet device 393 is as long as the upper opening of the feeding chute 33, so that the entire cross section of the feeding chute 33 can be covered by the water flow to maximize the cleaning area, so that the onion is fully in contact with the water flow, increasing the cleaning time. Efficiency and cleaning degree, the onion enters the cleaning drum 32 after soaking in clear water, and finally reaches the best cleaning effect. After the cleaning is completed, stop the cleaning drum 32 from rotating, pour the onions and water from the front opening 35 of the cleaning drum 32, and then filter the water. The cleaned onions are obtained, and the cleaned onions are then transported to the sorting device 5 for sorting, and then sequentially cut to complete the production and processing of the onions, realizing an integrated production line production mode.

Embodiment 2: On the basis of implementing 1, the sorting device 5 includes a chassis 51, a vibrating screen spring 52, a vibrating motor 53, a frame 54, a mesh sieve plate 55, a guide plate 56, and a feeding port 57 , the bottom of the frame 54 is connected to the bottom frame 51 through six vibrating screen springs 52, the vibrating motor 53 is placed above the frame 54, and four layers of mesh sieve plates are installed from top to bottom in the frame 54 55. The ends of the mesh sieve plates 55 are connected to their corresponding guide plates 56, the ends of the guide plates 56 are pointed, and the ends of the guide plates 56 are provided with corresponding feeding ports 57. Several sieve holes 58 are evenly distributed, and the sieve holes 58 on each layer of mesh sieve plate 55 have the same aperture, and the inner diameters of each layer of sieve holes 58 of the mesh sieve plate 55 are arranged in layers from large to small from the upper layer to the bottom layer. , the beginning ends of the mesh sieve plate 55 and the guide plate 56 are inclined downward toward the end. The frame 54 vibrates up and down on the vibrating screen spring 52 under the vibration of the vibrating motor 53. After the onion material enters the sorting device 5, it first falls on the first layer of mesh sieve plate 55. Under the action of the vibration, due to The mesh sieve plate 55 has an inclined slope, and starts to move in an inclined direction, passing through the sieve holes 58 distributed on the mesh sieve plate 55. Since the sieve holes 58 of the uppermost layer have the largest aperture, most of the diameters are smaller than those of the uppermost layer. The onion material with the aperture of the sieve hole 58 all falls from the sieve hole 58 into the mesh sieve plate 55 of the next layer, and the onion material that cannot fall continues to enter the guide plate 56 toward the discharge port 57 along the mesh sieve plate 55 of the uppermost layer. Roll and flow out from the feeding port 57; the sieve hole 58 aperture of the mesh sieve plate 55 of the second layer is smaller than the sieve hole 58 aperture of the first layer, and the material continues to repeat on the second layer of mesh sieve plate 55 originally in the first layer. The work on the layer—continue to sieve the small onion material downwards, and the material that cannot pass through the second layer of mesh sieve plate 55 enters the second layer’s discharge port 57 from the second layer’s guide plate 56, and completes The screening of the second stage, the onion material entering the third layer of mesh sieve plate 55 continues to repeat the above-mentioned screening work, until the last layer of mesh sieve plate 55, sieves out the onion materials of different sizes and different sizes and separates them. Unified classification to achieve the purpose of sorting size;

The frame 54 is composed of a mullion 541, a beam 543, a horizontal frame 542, a side plate 544 and a rear plate 545. The two side plates 544 face each other, and the mesh sieve plate 55 is placed between the two side plates 544. The rear plate 545 is placed behind the mesh sieve plate 55 and connected to two side plates 544 respectively to form a box shape. Six vertical frames 541 are fixed on the outer short side and the middle plate surface of the side plate 544. Four horizontal frames 542 Fixed on the upper and lower long sides of the side plate 544 and connected to the corresponding vertical frame 541, the four cross beams 543 are fixed horizontally between the horizontal frames 542 on the two side plates 544, and the two middle beams 543 are parallel It is horizontally placed in the middle of the two horizontal frames 542 and a vibrating motor 53 is fixedly installed in the middle thereof. The vertical frame 541, the horizontal frame 542 and the cross beam 543 are connected to each other to form the outer frame of the box formed by the side plate 544 and the rear plate 545 to increase its strength. The ribs are connected and covered to form the support and protection of key stress points, ensuring the stability of the frame 54 in vibration, and making it integrated, so that the mesh sieve plate 55 can be stressed evenly in vibration and the overall amplitude is consistent , improve the screening stability of the equipment, improve the efficiency of screening, and also increase the quality of the equipment, thereby ensuring the service life of the equipment.

The vertical frames 541 extend downwards, and the lowermost end of each vertical frame 541 is placed on the bottom frame 51 by connecting the vibrating screen springs 52 fixed on the bottom frame 51 . Connect the vibrating screen spring 52 through the mullion 541, so that the mullion 541 acts as a support point on the vibrating screen spring 52 to achieve the best effect of vibration, and at the same time ensure that the main force of the vibration is borne by the mullion 541 and dispersed by the mullion 541 To the horizontal frame 542, the beam 543 and the mesh sieve plate 55, it can ensure the overall force during the vibration of the equipment, achieve the overall consistency of the vibration frequency of the vibrating screen, and achieve the best vibration effect and force uniformity.

The discharge openings 57 at the ends of the guide plates 56 of each layer are all staggered and embedded with each other. The sorted onion materials need to be collected and cut separately. Since the structure of this equipment is reasonable and rigorous, the overall structure is relatively compact. In order to achieve a reasonable size of the equipment, reduce the occupied area and avoid complex and huge structural design, based on the overall structure The original intention of simplifying the design is to stagger the position of the discharge port 57 at the end of the guide plate 56, which avoids the problem of station overlap between the upper and lower guide plates 56 when the material is collected, so that the upper and lower guide plates 56 can be simultaneously processed. Materials are collected or processed at the same time, and structurally, there is no need for too much space between the guide plates 56, and the sorting equipment 5 can be minimized to achieve a simplified structure, scientific and reasonable compactness, and the advantages of reducing floor space and saving resources Effect.

Embodiment 3: On the basis of Embodiment 1 or 2, the cutting device 6 includes a casing 610 and a pushing mechanism 620 placed in the casing 610, a blanking mechanism 630, a righting guide mechanism 640 and a cutting mechanism 650, pushing The mechanism 620 is connected to the unloading mechanism 630 and placed below it, the pushing mechanism 620 is connected to the righting guide mechanism 640, and the cutting mechanism 650 is installed inside the righting guide mechanism 640. After the onion material enters the cutting device 6, under the action of the pushing mechanism 620, the onion material falls and pushes in a single and orderly manner in the unloading mechanism 630 at a uniform speed, avoiding the clogging or blocking of the cutting opening caused by the accumulation of multiple onion materials. For problems such as disordered cutting parts, the righting guide mechanism 640 can select the individual body position of the onion, and transport the onion material with the correct orientation to the cutting mechanism 650, which ensures the accuracy of the cutting part during cutting, and makes the onion slices obtained after cutting the standard Unified, improving the yield and cutting efficiency;

The pushing mechanism 620 includes a cylinder 621 , a piston rod 622 , and a push plate 623 . The cylinder 621 is fixed on the housing 610 . The cylinder 621 is connected to the piston rod 622 , and the end of the piston rod 622 is connected to the push plate 623 . The feeding mechanism 630 includes a feed hopper 631, a piston door plate 632, and a piston extension spring 633. The feed hopper 631 is conically placed on the casing 610, and the lower opening of the feed hopper 631 contacts the plate surface of the piston door plate 632. , the bottom surface of the piston door plate 632 is connected with the pushing mechanism 620 , and the front surface or the side surface of the piston door plate 632 is connected with the piston extension spring 633 installed on the casing 610 . During the working process, the cylinder 621 drives the piston rod 622 to perform repeated telescopic movements. When the piston rod 622 stretches out, it drives the push plate 623 to move forward to push the onion material in this station to the next station. When the piston rod 622 is retracted, the piston door plate 632 below the feed hopper 631 will be opened, so that an onion will fall into the station in front of the push plate 623, and when the piston rod 622 is pushed again, the feed hopper 631 will be closed. The piston door plate 632 below prohibits other onions from falling, thereby realizing the orderly single drop and push work of onion materials in the repeated process, and the piston extension spring 633 is used to fix and reset the piston door plate 632;

The onion material is pushed to the righting guide mechanism 640. The righting guide mechanism 640 includes a righting connecting rod 641, a righting roller 642, a righting guide rod 643, a righting guide plate 644, and a guide block 645. Two righting connecting rods 641 are fixed on the casing The inner top wall of 610 extends downwards to fix the righting roller 642, and the righting roller 642 faces the pushing direction of the pushing mechanism 620. The spacing is gradually reduced, and the ends of the two righting guide rods 643 face to the two righting guide plates 644 fixed on the inner wall of the casing 610. The two righting guide plates 644 face each other and stand horizontally. The guide block 645 on the inner top wall of the shell 610. The onion material first enters the pole position of the righting guide rod 643, and the upper part of the onion material touches the righting roller 642 during the pushing process. Topple over from one side of the both sides of the righting roller 642, and keep the onion rolling forward in the direction of the side, and enter into the limiting channel formed by the righting guide plate 644 and the guide briquetting block 645 after passing through the righting guide rod 643, so that The onion will be deflected according to the stress conditions and completely seated, reaching the required body angle for cutting;

The righting guide mechanism 640 also includes a guide roller 647 and a righting tension spring 648. The starting ends of the two righting guide rods 643 are respectively equipped with parallel guide rollers 647, and the guide rollers 647 are connected and fixed in the casing 610 respectively. Centralizing extension spring 648 on the bottom wall. When the individual onion contacts the guide roller 647 under the pushing action of the pushing mechanism 620, it can advance into the righting guide rod 643 along the guiding roller 647 with the minimum resistance effect, and enter the righting guide rod 643 when the onion individual is accidentally pushed by the pushing mechanism 620. After the situation, the individual onion will be deflected back to the advancing direction of the centralizing guide rod 643 under the action of the centralizing extension spring 648 in the direction of force, so as to ensure that the onion rolls in a predetermined direction, and improve the accuracy and accuracy of centralizing and guiding. accuracy;

The righting guide plate 644 facing the pushing direction of the pushing mechanism 620 is provided with a pair of right-angled triangle righting guide pieces 646 that are symmetrical along the pushing direction, and the hypotenuses of the righting guide pieces 646 face up and down. The righting guide piece 646 is used to gather the onions from all possible directions to the entrance of the limiting channel and maintain the required rolling direction to improve positioning efficiency and positioning accuracy;

The cutting mechanism 650 includes a cutting motor 651 and a cutting blade 652. The cutting motor 651 is placed horizontally on the outside of the righting guide plate 644. The cutting motor 651 is connected to two cutting blades 652. The two cutting blades 652 are placed on the inner side of the righting guide plate 644 and are close to both sides. but does not touch the righting fence 644. The onion main body 7 entering between the righting guide plates 644 is moved forward by the cutting blade 652, and the two ends: the onion head 8 and the onion root 9 are cut off, and the cutting process of the onion is completed;

The two sides of the wheel surface of the righting roller 642 gradually become thinner toward the middle, and the outer sides of the two righting guide plates 644 are connected to the inner side wall of the casing 610 through several compression springs 653, and the righting guide plates 646 face toward the center. The direction in which the pushing mechanism 620 is located is flared outwards. Although the cut onions are of the same size through sorting, individual differences still exist. When the individuality of each onion is different, the opened righting guide 646 will play a guiding effect of collecting and collecting, and the righting guide will 644 is kept balanced by the force of compression spring 653. When individual onions with differences enter into the guide piece 646, the compression spring 653 will play a role in adjusting the gap and pressure between the guide piece 646, avoiding onion jamming , accumulation blockage and other problems, so that the cutting device is suitable for cutting onions of various shapes and sizes, improving the cutting efficiency and cutting accuracy of the equipment and ensuring the smooth and smooth performance of the cutting equipment 6, thereby improving the work efficiency of the production line as a whole.

Claims (10)

1. An onion cleaning, sorting and cutting integrated processing production line is characterized in that it consists of vibrating screen equipment (1), the first conveying equipment (2), cleaning equipment (3), the second conveying equipment (4), sorting equipment (5) and cutting equipment (6) constitute, wherein: the end of vibrating screen equipment (1) is connected to the beginning of first conveying equipment (2), and the end of first conveying equipment (2) is connected to the end of cleaning equipment (3) The feed end, the discharge end of the cleaning equipment (3) is connected to the beginning of the second conveying equipment (4), and the end of the second conveying equipment (4) is connected to the feed port of the sorting equipment (5), and the sorting equipment ( 5) It includes multiple discharge ends, and several cutting devices (6) are installed under the discharge ends. 2. The production line according to claim 1, characterized in that said cleaning equipment (3) comprises a cleaning frame (31), placed on the cleaning frame (31) to be provided with a cleaning drum (32), a feed chute (33) and water adding device, power unit (34) is placed on cleaning frame (31) one side, and cleaning cylinder (32) has front opening (35) and rear opening (36), and cleaning cylinder (32) presses front and rear opening The direction is horizontally placed on the cleaning frame (31), the power unit (34) is connected to the cleaning drum (32) and the water adding device, and the water adding device is placed on the top of the feed chute (33) to replenish water, and the feed chute (33) The bottom extends into the rear opening (36) of the cleaning drum (32), and the inside of the cleaning drum (32) is staggered with several glue sticks (37) vertically facing the rolling axis of the cleaning drum (32). ) is also distributed with several plectrums (38), and several plectrums (38) are horizontally placed on the cleaning cylinder (32) according to the same inclination direction and angle not parallel to the direction of the axis of the cleaning cylinder (32). on the inner surface. 3. The production line according to claim 2, wherein the water adding device comprises a water tank (39), a water pump (391), a water pipe (392), and a water outlet device (393), and the water tank (39) is placed in the cleaning frame ( 31) below, the water pump (391) is placed on the cleaning frame (31), the water tank (39) is connected to the water pump (391) through the water pipe (392), and the water pump (391) is connected to the feeding slide through the water pipe (392). The water outlet device (393) above the groove (33), the feed chute (33) is wide at the top and narrow at the bottom, and extends into the rear opening (36) of the cleaning drum (32) in an inclined shape. There are baffles (40) on both sides of the groove (33), the water outlet device (393) is placed above the feed chute (33) and fixed on the cleaning frame (31), and the water outlet device (393) covers the feed material laterally. The upper opening of the chute (33) is evenly discharged. 4. The production line according to claim 1, characterized in that the sorting equipment (5) comprises a chassis (51), a vibrating screen spring (52), a vibrating motor (53), a frame (54), a mesh Sieve plate (55), guide plate (56), feeding port (57), the bottom of described frame (54) is connected and placed on the chassis (51) by several vibrating screen springs (52), vibrating motor ( 53) placed above the frame (54), several layers of mesh sieve plates (55) are installed from top to bottom in the frame (54), and the ends of the mesh sieve plates (55) are connected to corresponding guide plates ( 56), the end of the guide plate (56) is pointed, and the end of the guide plate (56) is provided with a corresponding feeding port (57), and several sieve holes are evenly distributed on the mesh sieve plate (55) (58), the sieve hole (58) aperture on every layer of mesh sieve plate (55) is the same, and the inner diameter of each layer of sieve hole (58) from the upper floor to the bottom of the mesh sieve plate (55) is divided successively from large to small Layers are arranged and installed, and the beginning ends of the mesh sieve plate (55) and the guide plate (56) are inclined downward toward the end direction. 5. The production line according to claim 4, characterized in that the frame (54) is composed of a mullion (541), a beam (543), a transverse frame (542), side panels (544) and a rear panel (545) Composition, the two side plates (544) face each other, the mesh sieve plate (55) is placed between the two side plates (544), the rear plate (545) is placed behind the mesh sieve plate (55) and Connect two side panels (544) respectively to form a box shape, several vertical frames (541) are fixed on the outer short side and the middle panel surface of the side panels (544), and several horizontal frames (542) are fixed on the side panels (544 ) and connected to the corresponding mullion (541), a number of beams (543) are fixed horizontally placed between the horizontal frames (542) on the two side panels (544), wherein there are two beams (543) is placed horizontally in the middle of two horizontal frames (542) and fixedly installs vibration motor (53) in the middle thereof. 6. The production line according to claim 5, characterized in that the mullions (541) extend downwards, and the lowermost end of each mullion (541) is connected to a vibrating screen spring fixed on the chassis (51) (52) is placed on the chassis (51), and the end feeding openings (57) of each layer of the guide plate (56) are all staggered and embedded with each other. 7. The production line according to claim 1, characterized in that the cutting device (6) comprises a casing (610) and a pushing mechanism (620) placed in the casing (610), a feeding mechanism (630), The righting guide mechanism (640) and the cutting mechanism (650), the pushing mechanism (620) is connected with the blanking mechanism (630) and placed below it, the pushing mechanism (620) is connected with the righting and guiding mechanism (640), and the righting and guiding mechanism (640) A cutting mechanism (650) is installed inside. 8. The production line according to claim 7, characterized in that the pushing mechanism (620) includes a cylinder (621), a piston rod (622), and a push plate (623), and the cylinder (621) is fixed on the casing (610) On, the cylinder (621) is connected to the piston rod (622), and the end of the piston rod (622) is connected to the push plate (623); the feeding mechanism (630) includes a feed hopper (631), a piston door plate (632), The piston extension spring (633), the feed hopper (631) is placed on the casing (610) in a conical shape, the lower opening of the feed hopper (631) contacts the plate surface of the piston door panel (632), and the piston door panel (632) The bottom surface of the bottom surface is connected with the push mechanism (620), and the piston extension spring (633) installed on the casing (610) is connected on the front surface or the side of the piston door plate (632). 9. The production line according to claim 7, characterized in that said righting guide mechanism (640) comprises a righting link (641), a righting roller (642), a righting guide rod (643), a righting guide plate (644), a guide Pressing block (645), righting guide piece (646), guide roller (647) and righting tension spring (648), two righting connecting rods (641) are fixed on the inner top wall of the casing (610) and extend downward The righting roller (642), the righting roller (642) is facing the pushing direction of the pushing mechanism (620), and two righting guide rods (643) are fixed on the inner bottom wall of the casing (610) to extend the pushing direction of the pushing mechanism (620) Extend and gradually reduce the distance, the ends of the two righting guide rods (643) face the two righting guide plates (644) fixed on the inner side wall of the casing (610), and the two righting guide plates (644) stand opposite to each other. The top of the righting guide plate (644) is provided with a guide briquetting block (645) fixed on the inner top wall of the casing (610); the starting ends of the two righting guide rods (643) are respectively equipped with parallel guide rollers ( 647), the guide rollers (647) are all connected to the righting extension springs (648) respectively fixed on the inner bottom wall of the casing (610); A pair of right-angled triangular right-angled guide vanes (646) that are symmetrical in extending and pushing direction are installed respectively; the hypotenuses of the uprighting guide vanes (646) are opposite up and down. 10. The production line according to claim 9, characterized in that the cutting mechanism (650) comprises a cutting motor (651), a cutting blade (652), and the cutting motor (651) is placed horizontally on the outside of the righting guide plate (644), cutting The motor (651) connects two cutting blades (652), and the two cutting blades (652) are placed on the inside of the righting guide plate (644) and are close to the righting guide plates (644) on both sides respectively but do not contact the righting guide plate (644); The two sides of the wheel surface of the roller (642) gradually change from thick to thin toward the middle, and the outer sides of the two righting guide plates (644) are connected to the inner side wall of the casing (610) through several compression springs (653). The righting guide piece (646) flares outwards toward the direction where the pushing mechanism (620) is located.