CN111804560A

CN111804560A - Fruit screening machine

Info

Publication number: CN111804560A
Application number: CN202010806748.6A
Authority: CN
Inventors: 杨龙新
Original assignee: Qingdao Zhikun Food Machinery Equipment Co ltd
Current assignee: Qingdao Zhikun Food Machinery Equipment Co ltd
Priority date: 2020-08-12
Filing date: 2020-08-12
Publication date: 2020-10-23

Abstract

The invention relates to the field of screening equipment, in particular to a fruit screening machine which comprises a machine frame, a screening part and a conveying part, wherein the screening part and the conveying part are connected with the machine frame, the screening part comprises transmission shafts which are uniformly arranged on an annular transmission chain, clamping parts on two sides of each transmission shaft are clamped with limiting grooves fixedly connected on the transmission chain, each transmission shaft comprises a fixed shaft and a movable shaft which are arranged at intervals, the clamping parts of the fixed shafts are fixedly arranged at the tops of the limiting grooves, the clamping parts of the movable shafts move in the limiting grooves and are lapped on limiting plates, the limiting plates are a plurality of strip-shaped flat plates, and the height positions of the limiting plates are sequentially reduced. The fruit sorting machine can realize the sorting and screening of the fruits from small to large, the sorted fruits are conveyed while the screening is finished, the whole process is finished by the screening machine, manual assistance is not needed, and the labor cost is effectively reduced; the fruit falls to the conveying part through the vertical clearance between the adjacent transmission shaft, adjusts the letter sorting standard of fruit through adjusting the clearance size, easy operation, application scope is wide.

Description

Fruit screening machine

Technical Field

The invention relates to the field of screening equipment, in particular to a fruit screening machine.

Background

After the fruits are picked, screening and grading are carried out according to the sizes of the fruits so as to sell the fruits at different prices according to the fruit varieties. The mode of manual sorting is adopted in traditional screening, and workman labour cost is high, sorts inefficiency and damages the fruit easily. The existing screening equipment can not adjust the fruit screening standard according to the requirement, and can cause higher fruit damage rate in the screening process.

Disclosure of Invention

The invention aims to solve the problems, and provides a fruit screening machine taking cherry tomato fruits as an example, the scheme can be also suitable for other fruits, and the adopted technical scheme is as follows:

a fruit screening machine comprises a rack, a screening part and a conveying part, wherein the screening part and the conveying part are connected with the rack, the screening part comprises transmission shafts which are uniformly arranged on an annular transmission chain, clamping parts on two sides of each transmission shaft are clamped with limiting grooves fixedly connected to the transmission chain, a transmission part is arranged between the clamping parts, each transmission shaft comprises a fixed shaft and a movable shaft which are arranged at intervals, the clamping parts of the fixed shafts are fixedly arranged at the tops of the limiting grooves, the clamping parts of the movable shafts move up and down in the limiting grooves and are lapped on limiting plates, the limiting plates are a plurality of strip-shaped flat plates, and the height positions of the limiting plates are sequentially reduced along the; the conveying part comprises a sorting conveying belt corresponding to the lower part of each limiting plate.

On the basis of the scheme, a second bending plate is arranged behind the tail end of the limiting plate along the moving direction of the transmission chain, the number of the second bending plates is 2, the second bending plates are respectively arranged on the inner sides of the moving tracks of the clamping parts on the two sides of the transmission shaft, each second bending plate comprises an inclined part, a second arc part and a second flat plate part, the second arc parts and the transmission chain wheel on the side are coaxially arranged, the clamping parts of the transmission shaft are abutted against the top end of the limiting groove by the outer peripheral surface of each second bending plate part, each second flat plate part is of a flat plate structure which is horizontally connected with the upper end and the lower end of the second arc part respectively, and each inclined part is an inclined flat plate of which the; the second bending plate opposite end corresponds sets up first bending plate, includes first circular arc portion and first flat board portion, and is the same with the mode that sets up of second circular arc portion and second flat board portion respectively, and the upper surface height of the flat board of first flat board portion top is not less than the upper surface height of adjacent limiting plate.

Preferably, the lateral surface of the limiting block is provided with an installation block, an adjusting bolt penetrates through the installation block, the upper portion of the adjusting bolt penetrates through the rack, the top end of the adjusting bolt is provided with an adjusting handle, the adjusting handle is in threaded connection with the rack and the installation block respectively, the bottom of the adjusting bolt is rotatably abutted to the groove of the installation seat, and the installation seat is fixedly connected to the rack.

On the basis of the scheme, the upper surface of the limiting block is provided with a nylon strip.

Preferably, the conveying part comprises a conveying belt motor, a reduction gearbox and a conveying belt connecting shaft which are sequentially connected, a coupler is arranged between the conveying belt connecting shafts, and the conveying belt connecting shaft is connected with a driving shaft of the sorting conveying belt through a chain wheel structure in the conveying belt linkage part.

Preferably, the limiting groove is internally provided with a vertically arranged sliding groove, and the clamping portion of the fixing shaft is fixed at the position of a stop block welded in the sliding groove through the lower portion of the clamping portion.

On the basis of the scheme, the shaft section of the clamping part of the transmission shaft is square.

Preferably, the transmission shaft is provided with brushes at intervals above the transmission shaft, the upper side transmission shaft is provided with a collecting tank below the transmission shaft, and the collecting tank is arranged between the first flat plate parts on two sides of the rack.

On the basis of the scheme, conveying belt baffles are arranged on two sides of the sorting conveying belt.

The invention has the beneficial effects that: the fruit grading screening from small to large is realized according to the moving direction of the transmission shaft, the sorted fruits are simultaneously conveyed, the whole process is completed by the screening machine, manual assistance is not needed, and the labor cost is effectively reduced; the fruits fall to the conveying part through the vertical gap between the adjacent transmission shafts, the sorting standard of the fruits is adjusted by adjusting the size of the gap, the operation is simple, and the application range is wide; the noise of the transmission shaft generated in the transmission process is effectively reduced through the bending plates at the two end parts of the rack.

Drawings

FIG. 1: the invention has a schematic structure;

FIG. 2: the invention is a schematic diagram of the matching position of a limiting plate and a transmission shaft;

FIG. 3: the invention A part enlarges;

FIG. 4: the structure of the limiting groove is schematically shown;

FIG. 5: the invention discloses a schematic diagram of a limiting plate mounting structure.

Detailed Description

The invention is further illustrated by the following examples in conjunction with the accompanying drawings:

in the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description of the present invention, it is to be understood that the terms "center", "length", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

As shown in fig. 1 to 5, a fruit sorting machine includes a frame 11, a sorting part connected to the frame, and a conveying part, wherein cherry tomatoes to be sorted are sorted by volume in the sorting part, fall to the conveying part, and are conveyed to the next process. The screening part is in a chain wheel and chain structure, and a main motor 12 drives a transmission chain wheel 13 to drive a transmission chain 14 to run. Screening portion is still including evenly setting up the transmission shaft on annular drive chain 14, fixed connection's spacing groove 15 joint on the joint portion 22 of transmission shaft both sides and the drive chain 14, set up transmission portion 21 between the joint portion 22, transmission portion 21 is used for the delivery and filters the cherry tomato, the transmission shaft includes fixed axle 23 and loose axle 25 that the interval set up, fixed axle 23's joint portion 22 is fixed to be set up at spacing groove 15 top, as shown in fig. 4, the inside spout that is provided with vertical setting of spacing groove 15, the joint portion 22 of fixed axle 23 fixes its position through dog 24 of its below welding in the spout. The engaging portion 22 of the movable shaft 25 moves up and down in the sliding slot of the limiting groove 15, and is overlapped on the limiting plate 3, and moves up and down in the sliding slot of the limiting groove 15 with the height position of the limiting plate 3, so that a gap exists between the adjacent fixed shaft 23 and the movable shaft 25 in the vertical direction, the gap is adjustable, and cherry tomatoes having a volume smaller than the gap fall from the gap to the conveying portion below. The limiting plates 3 are a plurality of strip-shaped flat plates, as shown in fig. 2, each of the limiting plates includes a first limiting plate 31, a second limiting plate 32 and a third limiting plate 33, the height positions of the first limiting plate 31, the second limiting plate 32 and the third limiting plate 33 are sequentially lowered along the moving direction of the transmission shaft, so that the gaps between the adjacent fixed shafts 23 and the movable shafts 25 are gradually increased, as shown in fig. 3, cherry tomatoes falling on the screening portion are classified from small to large along the moving direction of the transmission shaft and fall on the conveying portion below the screening portion, and the conveying portion includes a sorting conveyor belt 55 corresponding to the lower portion of each limiting plate 3, so that cherry tomatoes of different sizes are respectively conveyed from different.

As shown in fig. 2, the limiting plate 3 is provided with a second bending plate 42 at the rear end of the moving direction of the transmission chain 14, that is, at the rear end of the third limiting plate 33, the number of the second bending plates 42 is 2, and the second bending plates are respectively arranged at the inner sides of the moving tracks of the clamping portions 22 at the two sides of the transmission shaft, each second bending plate 42 includes an inclined portion 421, a second arc portion 423 and a second flat plate portion 422, the second arc portion 423 is coaxially arranged with the transmission chain wheel 13 at the side, the outer peripheral surface of each second bending plate portion abuts against the top end of the limiting groove 15, each second flat plate portion 422 is a flat plate structure horizontally connected with the upper end and the lower end of the second arc portion 423, and each inclined portion 421 is an inclined flat plate extending from the free end of the second flat plate. Through the above structure, the engaging portion 22 of the movable shaft 25 passing through the third limiting plate 33 slides to the top of the sliding groove in the limiting groove 15 along the inclined portion 421, and is sequentially conveyed to the transmission chain 14 below along the upper side of the second flat plate portion 422, the second arc portion 423 and the lower side of the second flat plate portion 422, so that the engaging portion 22 is prevented from colliding with the end of the sliding groove in the limiting groove 15 when rotating to the lower side along with the transmission chain 14, and noise is generated. Second bending plate 42 looks remote site is corresponding to set up first bending plate 41, including first circular arc portion 411 and first flat board 412, it is the same with the mode that sets up of second circular arc portion 423 and second flat board 422 respectively, the dull and stereotyped upper surface height in first flat board 412 top is not less than the upper surface height of adjacent limiting plate 3, through above-mentioned structure, make joint portion 22 rotate to the upside along first bending plate 41 from the below along drive chain 14, joint portion 22 of loose axle 25 is located the top of spout in spacing groove 15 all the time, prevent on the one hand that joint portion 22 from rotating the in-process and dropping to spout bottom noise generation, on the other hand makes joint portion 22 can follow higher position and fall to first limiting plate 31 on, avoid joint portion 22 and first limiting plate 31 to take place to interfere.

As shown in fig. 5, the outer side surface of the limit block 3 is provided with a mounting block, an adjusting bolt 35 penetrates through the mounting block, the upper portion of the adjusting bolt 35 penetrates through the frame 11, the top end of the adjusting bolt is provided with an adjusting handle 36, the adjusting bolt is respectively in threaded connection with the frame 11 and the mounting block, the bottom of the adjusting bolt 35 is rotatably abutted to the groove of the mounting seat 34, the mounting seat 34 is fixedly connected to the frame 11, so that the height of the limit block 3 relative to the frame 11 is adjusted by rotating the adjusting handle 36, and further, the gap between the fixed shaft 23 and the movable shaft 25. The stopper 3 upper surface is provided with nylon strip 37 to prevent that joint portion 22 from producing the noise when moving on stopper 3. Preferably, in order to prevent the transmission shaft from rotating relative to the transmission chain 14 and breaking the cherry tomato peel, the shaft section of the clamping portion 22 of the transmission shaft is square and clamped in the sliding groove to avoid rolling. The brushes 16 are arranged above the transmission shaft at intervals and used for enabling the fruits to be evenly and flatly paved on the transmission shaft, so that the fruits are prevented from being stacked, and meanwhile, impurities on the fruits are swept away. Collecting grooves 15 are arranged below the upper side transmission shaft, and the collecting grooves 15 are arranged between the first flat plate parts 412 on the two sides of the rack 11 and used for collecting the stalks, leaves and the like of the miscellaneous fruits and the fruits.

The conveying part comprises a conveyor belt motor 51, a reduction gearbox 52 and conveyor belt connecting shafts 53 which are sequentially connected, a shaft coupler is arranged between the conveyor belt connecting shafts 53, and the conveyor belt connecting shafts 53 are connected with a driving shaft of a sorting conveyor belt 55 through a chain wheel structure in a conveyor belt linkage part 54, so that a plurality of sets of sorting conveyor belts 55 can be driven by one motor at the same time, the energy consumption is reduced, and the structural volume is reduced. The sorting conveyor belt 55 is provided with conveyor belt baffles at both sides to prevent the cherry tomatoes from rolling down to both sides in the conveying process.

The present invention has been described above by way of example, but the present invention is not limited to the above-described specific embodiments, and any modification or variation made based on the present invention is within the scope of the present invention as claimed.

Claims

1. The fruit screening machine is characterized by comprising a rack (11), a screening portion and a conveying portion, wherein the screening portion and the conveying portion are connected with the rack, the screening portion comprises transmission shafts which are uniformly arranged on an annular transmission chain (14), clamping portions (22) on two sides of each transmission shaft are clamped with limiting grooves (15) which are fixedly connected with the transmission chain (14), transmission portions (21) are arranged between the clamping portions (22), each transmission shaft comprises a fixed shaft (23) and a movable shaft (25) which are arranged at intervals, the clamping portions (22) of the fixed shafts (23) are fixedly arranged at the tops of the limiting grooves (15), the clamping portions (22) of the movable shafts (25) move up and down in the limiting grooves (15) and are lapped on limiting plates (3), the limiting plates (3) are a plurality of strip-shaped flat plates, and the height positions of the limiting plates are sequentially reduced along the moving direction of the; the conveying part comprises a sorting conveyor belt (55) corresponding to the lower part of each limiting plate (3).

2. Fruit screening machine according to claim 1, characterized in that the limit plate (3) is provided with a second bending plate (42) behind the end in the direction of movement of the drive chain (14), the number of the second bending plates (42) is 2, the second bending plates are respectively arranged at the inner sides of the moving tracks of the clamping parts (22) at the two sides of the transmission shaft, each second bending plate (42) comprises an inclined part (421), a second arc part (423) and a second flat plate part (422), the second arc part (423) is coaxially arranged with the transmission chain wheel (13) at the side, the outer peripheral surface of the limiting plate supports the clamping part (22) of the transmission shaft against the top end of the limiting groove (15), the second flat plate part (422) is of a flat plate structure which is horizontally connected with the upper end and the lower end of the second arc part (423) respectively, and the inclined part (421) is an inclined flat plate extending from the free end of the upper second flat plate part (422) to the lower part of the tail end of the limiting plate (3); the second bending board (42) opposite end corresponds sets up first bending board (41), including first circular arc portion (411) and first flat board portion (412), is the same with the mode of setting of second circular arc portion (423) and second flat board portion (422) respectively, and the upper surface height of the flat board in first flat board portion (412) top is not less than the upper surface height of adjacent limiting plate (3).

3. The fruit screening machine according to claim 1, characterized in that an installation block is arranged on the outer side surface of the limiting block (3), an adjusting bolt (35) is arranged in the installation block in a penetrating manner, the upper portion of the adjusting bolt (35) penetrates through the rack (11) and the top end of the adjusting bolt is provided with an adjusting handle (36) and is respectively in threaded connection with the rack (11) and the installation block, the bottom of the adjusting bolt (35) is rotatably abutted against the groove of the installation seat (34), and the installation seat (34) is fixedly connected to the rack (11).

4. A fruit screening machine according to claim 3, characterized in that the upper surface of the stopper (3) is provided with nylon strips (37).

5. A fruit screening machine according to claim 1, characterized in that the conveying part comprises a conveyor belt motor (51), a reduction gearbox (52) and a conveyor belt connecting shaft (53) which are connected in sequence, a shaft coupling is arranged between the conveyor belt connecting shafts (53), and the conveyor belt connecting shaft (53) is connected with a driving shaft of a sorting conveyor belt (55) through a chain wheel structure in a conveyor belt linkage part (54).

6. A fruit screening machine according to claim 1, wherein the limiting groove (15) is provided with a vertically arranged chute therein, and the clamping portion (22) of the fixing shaft (23) is fixed in position by a stopper (24) welded in the chute below the clamping portion.

7. Fruit screening machine according to claim 6, characterized in that the axial section of the snap-in part (22) of the drive shaft is square.

8. A fruit screening machine according to claim 1, wherein brushes (16) are spaced above the drive shaft and collection troughs (15) are provided below the upper drive shaft, the collection troughs (15) being provided between the first plate portions (412) on either side of the frame (11).

9. Fruit screening machine according to claim 5, characterized in that the sorting conveyor (55) is provided with conveyor baffles on both sides.