CN106275598A - Grain collecting device - Google Patents

Grain collecting device Download PDF

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Publication number
CN106275598A
CN106275598A CN201610674640.XA CN201610674640A CN106275598A CN 106275598 A CN106275598 A CN 106275598A CN 201610674640 A CN201610674640 A CN 201610674640A CN 106275598 A CN106275598 A CN 106275598A
Authority
CN
China
Prior art keywords
hopper
pin joint
frame plate
plate
collecting device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610674640.XA
Other languages
Chinese (zh)
Inventor
陈泳东
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN201610674640.XA priority Critical patent/CN106275598A/en
Publication of CN106275598A publication Critical patent/CN106275598A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B37/00Supplying or feeding fluent-solid, plastic, or liquid material, or loose masses of small articles, to be packaged
    • B65B37/02Supplying or feeding fluent-solid, plastic, or liquid material, or loose masses of small articles, to be packaged by gravity flow
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B1/00Packaging fluent solid material, e.g. powders, granular or loose fibrous material, loose masses of small articles, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
    • B65B1/04Methods of, or means for, filling the material into the containers or receptacles
    • B65B1/06Methods of, or means for, filling the material into the containers or receptacles by gravity flow
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B43/00Forming, feeding, opening or setting-up containers or receptacles in association with packaging
    • B65B43/42Feeding or positioning bags, boxes, or cartons in the distended, opened, or set-up state; Feeding preformed rigid containers, e.g. tins, capsules, glass tubes, glasses, to the packaging position; Locating containers or receptacles at the filling position; Supporting containers or receptacles during the filling operation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B65/00Details peculiar to packaging machines and not otherwise provided for; Arrangements of such details
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G65/00Loading or unloading
    • B65G65/28Piling or unpiling loose materials in bulk, e.g. coal, manure, timber, not otherwise provided for

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Storage Of Harvested Produce (AREA)

Abstract

The invention discloses a kind of grain collecting device, the cylinder body driving cylinder is fixedly connected in air cylinder fixed plate, inner side with two pieces of frame plates respectively, the two ends of air cylinder fixed plate is connected, the piston rod free end driving cylinder is connected with the center of slide bar connecting plate, upper end with two upright sliding bars respectively, the two ends of slide bar connecting plate is connected, and the lower end of upright sliding bar is hinged with hopper and is connected along the hopper slide on frame plate;The upper end of described hopper buffer unit is connected in air cylinder fixed plate, and is positioned at the lower section driving cylinder, and hopper buffer unit is horizontally disposed with, and its free end pushes against with hopper when hopper upset is to final position.After using above structure, owing to this device volume is small and exquisite, therefore, it is adaptable to small-sized silo;Further, frame plate is provided with buffering stop block, makes the upset of hopper have buffering with spacing, thus more ensure that being normally carried out of production, be conducive to improving production efficiency.

Description

Grain collecting device
Technical field
The present invention relates to field of mechanical technique, be especially a kind of grain collecting device.
Background technology
Annual summer Qiu Liangjishi peasant household and grain storage unit concentrate time period of grain storage, therefore, silo needs grain Carry out pack process, in order to the later stage preferably stores grain.In prior art, the staff of major part silo is to pass through people The mode of work carries out pack process to grain, and on the one hand labor efficiency is low, on the other hand needs several staff to work in coordination with Operation, the most this traditional grain pack is wasted time and energy.
Therefore, mechanical sack-filling device occurs on the market, to improve production efficiency.On State Intellectual Property Office website " sack filling machine collected automatically by grain " patent of invention of disclosed Patent No. " ZL201210230214.9 ", it includes leaking grain cleaning Device, auger, group grain device, elevator, wind power knot screen, grain intake mechanism, vibrosieve and magnetic impurity removing device, grain Storehouse, quantitatively pack transport bag system, automatic bag sealing system, power and drive system etc., all devices are all fixed in frame, collaborative Worked the collection of grain.It uses auger that grain is delivered to elevator lower end, and grain is delivered to top by elevator again, Grain falls to sack from top.But, this device structure is complicated, fuselage is huge, and floor space is also big, is only applicable to big The large granary in space, and for those small-sized silos, this equipment is the most inapplicable.
It addition, also disclose on State Intellectual Property Office website Patent No. " ZL02208631.5 " " movable wind gives Foodstuff bagging machine " utility model patent, it is to be made up of by formant part support, air operated mechanism and electrical control cubicles, support Being to be provided with wheel bottom a horizontal deckle board and top is provided with the vehicle type stand of support, air operated mechanism includes suction tank, puts out cereal Device, blower fan and high-order silo and multistage connecting tube assemble and form semi-closed system, and suction tank is to be connected to height on the upside of a can body The low aspiration channel of the connection drawn on blower fan split and the air intake of outer company inhale grain flexible pipe, high-order silo shape similar suction tank And at its funnel mouth of pipe, it is equiped with the shifting grain short tube of living of band gate.First air intake is inhaled the tube head of grain flexible pipe and is inserted in bulk by it In grain heap, under the effect of blower fan, grain is inhaled into suction tank, then is allocated by grain output device, and then grain send grain transfering tube to enter through wind Enter high-order silo, then move from living grain short tube to fall into and put grain sack and realize pack.But, this foodstuff bagging machine is from grain heap to dress Needing through suction tank, grain output device between Dai, enter back into high-order silo, the process in the middle of this is longer, and step is more, on the one hand energy The loss of amount is more, and the specification of the blower fan used is bigger;On the other hand grain is after carrying through very long tortuous pipeline, Some grain and remain in pipeline, the time one is long, causes the cleaning difficulty of pipeline;The parts that another further aspect relates to Or more, keep in repair cumbersome.
Summary of the invention
The technical problem to be solved is to provide the grain that a kind of volume is little, production efficiency is high and easy to maintenance Collection device.
For solving above-mentioned technical problem, the grain collecting device that the present invention provides, it includes movable base, frame Plate, for being socketed the sack fixing device of loading bag, hopper, hopper driving means and hopper buffer unit;Described frame plate Being two pieces, the lower end of every piece of frame plate is fixedly connected on the edge of movable base;Sack fixing device is connected to two pieces Between frame plate, and it is positioned at the middle part of frame plate in the vertical direction;Hopper is rotatably connected on two pieces of frame plates, and this turn It is dynamically connected and is a little positioned at the top of sack fixing device edge;Described hopper driving means include driving cylinder, two vertically Slide bar, slide bar connecting plate and air cylinder fixed plate, drive the cylinder body of cylinder to be fixedly connected in air cylinder fixed plate, air cylinder fixed plate Inner side with two pieces of frame plates respectively, two ends is connected, and drives the center of the piston rod free end of cylinder and slide bar connecting plate even Connecing, upper end with two upright sliding bars respectively, the two ends of slide bar connecting plate is connected, the lower end of upright sliding bar hinged with hopper and This pin joint connects along the hopper slide on frame plate;The upper end of described hopper buffer unit is connected to cylinder and fixes On plate, and being positioned at the lower section driving cylinder, hopper buffer unit is horizontally disposed with, and its free end is when hopper upset is to final position Push against with hopper.
Described hopper buffer unit includes gag lever post, buffer spring and fixed block, and the two ends of fixed block are fixing respectively to be connected Being connected on the inner side of two pieces of frame plates, the upper end of gag lever post is fixedly connected on fixed block, and buffer spring is socketed on gag lever post also And the upper end of buffer spring is fixedly connected on fixed block.
Described hopper is the first pin joint with the pin joint of frame plate, and upright sliding bar is the second hinge with the pin joint of hopper Contact, hopper track is as radius of the distance with the first pin joint as the center of circle, between the first pin joint and the second pin joint Section arc-shaped slot, in hopper track wherein horizontal direction, the distance near the one end to movable base driving cylinder is less than another One end is to the distance of movable base.
Described driving cylinder is horizontally disposed with, when the second pin joint slides into one end of hopper track close driving cylinder, Second pin joint and the first pin joint are on same level line.
Described hopper is hinged with frame plate to be referred to, this pin joint includes the first bearing pin, one end of the first bearing pin and hopper Hopper port connect near one end outer wall of sack fixing device is fixing, the other end of the first bearing pin is hinged with frame plate.
The hopper port of described hopper is away from being fixedly connected with the second bearing pin on one end outer wall of sack fixing device, and second sells The other end of axle is slidably connected in hopper track, and described upright sliding bar is provided with the chute of vertical direction, and the second bearing pin is same Time be slidably connected in chute.
The hopper port of described hopper is hinged with baffle plate away from one end of sack fixing device.
Described hopper is angle away from driving one end of cylinder, the pin joint of angle lower end to hopper and frame plate away from From the distance more than angle upper end to hopper Yu the pin joint of frame plate.
The bottom of described movable base is provided with four wheels, and four wheels is respectively provided with brake gear.
After using above structure, the present invention compared with prior art, has the advantage that
1) small and exquisite due to this device volume, therefore, it can be applicable to small-sized silo;Further, frame plate is provided with Buffering stop block, makes the upset of hopper have buffering with spacing, it is to avoid irreducible phenomenon after occurring hopper excessively to overturn, Thus more ensure that being normally carried out of production, be conducive to improving production efficiency;
2) and, this device use the second bearing pin to be connected with hopper slide while again with upright sliding bar slide Connect, thus under the effect driving cylinder, utilize upright sliding bar to drive hopper to overturn for fulcrum with the first bearing pin, because of This, simple in construction, amount of parts is few, low cost;
3) under the effect driving cylinder, hopper directly can shovel out grain from grain heap and directly pour in loading bag, because of This, be greatly improved production efficiency;
4), after hopper port has added baffle plate, there is stop when hopper upset puts in place and carries out and topple over grain, it is to avoid grain occurs The phenomenon of loading bag poured out in toppling process by food;
5) hopper is designed as angle for the one end shoveling grain, is to enable the most more effectively grain to be shoveled material bin In;
6) base is designed as packaged type, makes this device more flexible, can move to the pack carrying out grain Anywhere Operation.
Accompanying drawing explanation
Fig. 1 is the grain collecting device of the present invention structural representation when original state.
Fig. 2 is the grain collecting device of the present invention structural representation when end-state.
Fig. 3 is the left view structural representation of Fig. 2.
Detailed description of the invention
With detailed description of the invention, the present invention is described in more detail below in conjunction with the accompanying drawings.
From the structural representation of the grain collecting device of the present invention shown in Fig. 1~Fig. 3, it includes movable base 11, frame plate 3, for being socketed the sack fixing device 13 of loading bag 12, hopper 9, hopper driving means and hopper buffer unit. Described frame plate 3 is two pieces, and the lower end of every piece of frame plate 3 is fixedly connected on the edge of movable base 11;Sack is solid Determine device 13 to be connected between two pieces of frame plates 3, and be positioned at the middle part of frame plate 3 in the vertical direction.Hopper 9 is rotatably connected on On two pieces of frame plates 3, and this is rotationally connected the top being a little positioned at sack fixing device 13 edge.Described hopper drives dress Putting and include driving 1, two upright sliding bars 6 of cylinder, slide bar connecting plate 5 and air cylinder fixed plate 2, the cylinder body driving cylinder 1 is fixing even Being connected in air cylinder fixed plate 2, inner side with two pieces of frame plates 3 respectively, the two ends of air cylinder fixed plate 2 is connected, and drives the work of cylinder 1 Stopper rod free end is connected with the center of slide bar connecting plate 5, upper with two upright sliding bars 6 respectively of the two ends of slide bar connecting plate 5 End connects, and the lower end of upright sliding bar 6 is hinged with hopper 9 and this pin joint slides even along the hopper track 15 on frame plate 3 Connect.The upper end of described hopper buffer unit is connected in air cylinder fixed plate 2, and is positioned at the lower section driving cylinder 1, and hopper buffers Device is horizontally disposed with, and its free end pushes against with hopper 9 when hopper 9 overturns to final position.
Described hopper buffer unit includes gag lever post 18, buffer spring 19 and fixed block 17, and the two ends of fixed block 17 are divided Not being fixedly connected on the inner side of two pieces of frame plates 3, the upper end of gag lever post 18 is fixedly connected on fixed block 17, and buffer spring 19 overlaps It is connected on gag lever post 18 and the upper end of buffer spring 19 is fixedly connected on fixed block 17.
Described hopper 9 is the first pin joint with the pin joint of frame plate 3, and the pin joint of upright sliding bar 6 and hopper 9 is the Two pin joints, hopper track 15 be the distance with the first pin joint as the center of circle, between the first pin joint and the second pin joint be half One section of arc-shaped slot in footpath, near driving one end of cylinder 1 to movable base 11 in hopper track 15 wherein horizontal direction Distance less than the other end to the distance of movable base 11.
Described driving cylinder 11 is horizontally disposed with, and the second pin joint slides into hopper track 15 near driving the one of cylinder 1 During end, the second pin joint and the first pin joint are on same level line.
Described hopper 9 is hinged with frame plate 3 to be referred to, this pin joint includes the first bearing pin 14, one end of the first bearing pin 14 It is connected near one end outer wall of sack fixing device 13 is fixing with the hopper port of hopper 9, the other end of the first bearing pin 14 and frame Plate 3 is hinged.
The hopper port of described hopper 9 away from being fixedly connected with the second bearing pin 8 on one end outer wall of sack fixing device 13, The other end of two bearing pins 8 is slidably connected in hopper track 15, and described upright sliding bar 6 is provided with the chute 7 of vertical direction, the Two bearing pins 8 are slidably connected in chute 7 simultaneously.
The hopper port of described hopper 9 is hinged with baffle plate 4 away from one end of sack fixing device 13.
Described hopper 9 is angle 16 away from one end of driving cylinder 1, and angle 16 lower end is to the hinge of hopper 9 with frame plate 3 The distance of contact is more than the distance of angle 16 upper end to hopper 9 with the pin joint of frame plate 3.
The bottom of described movable base 11 is provided with four wheels 10, and four wheels 10 is respectively provided with brake dress Put.
The work process of the present invention is as follows: first moved to grain heap by this device, until the angle 8 of hopper 9 inserts grain In heap, stepping on the brake gear on wheel 10, start two groups and drive cylinder 1, drive the piston rod of cylinder 1 to receive inwards, drive is drawn One end of bar 5 is to driving cylinder 1 direction to move, and the other end of pull bar 5 hauls the second bearing pin 6 and hopper 9 along on frame plate 2 Hopper track 4 slides, until stopping driving the operation of cylinder 1 when the second bearing pin 6 slides into the other end of hopper track 4;At material In the switching process of bucket 9, hopper 9 the most first touches buffer spring 19, and hopper 9 slowly continues to turn under spring force Turn, until hopper 9 pushes against with gag lever post 18;Now baffle plate 3 is under gravity, and the hopper of hopper 9 is left in the lower end of baffle plate 3 Mouthful, the grain in hopper 9 just pours in the loading bag 12 below hopper 9 in hopper 9.After pack terminates, drive cylinder 1 anti- Direction action, makes piston rod move to away from the direction driving cylinder 1, forces the other end of pull bar 5 to drive the second bearing pin 6 and material Bucket 9 slides along hopper track 4, until stopping driving the action of cylinder 1 when the second bearing pin 6 arrives the end of hopper track 4, makes Hopper 9 is returned to initial position, waits for grain bagging operations next time.
The invention is not limited in structures described above, wherein: the end of the first, the first bearing pin or the second bearing pin can Weld with the outer wall with hopper, it is also possible to be threaded;The second, the first bearing pin or the second bearing pin can be that diameter is identical Optical axis, it is also possible to be Step Shaft, wherein the stub end of Step Shaft is connected with hopper;Etc..The above change each falls within this Within bright protection domain.

Claims (9)

1. a grain collecting device, it is characterised in that: it includes movable base (11), frame plate (3), is used for overlapping tipping The sack fixing device (13) of grain sack (12), hopper (9), hopper driving means and hopper buffer unit;Described frame plate (3) Being two pieces, the lower end of every piece of frame plate (3) is fixedly connected on the edge of movable base (11);Sack fixing device (13) It is connected between two pieces of frame plates (3), and is positioned at the middle part of frame plate (3) in the vertical direction;Hopper (9) is rotatably connected on two On block frame plate (3), and this is rotationally connected the top being a little positioned at sack fixing device (13) edge;Described hopper drives Device includes driving cylinder (1), two upright sliding bars (6), slide bar connecting plate (5) and air cylinder fixed plate (2), driving cylinder (1) Cylinder body be fixedly connected in air cylinder fixed plate (2), the two ends of air cylinder fixed plate (2) respectively with the inner side of two pieces of frame plates (3) Connect, drive the piston rod free end of cylinder (1) to be connected with the center of slide bar connecting plate (5), the two ends of slide bar connecting plate (5) Upper end with two upright sliding bars (6) is connected respectively, and the lower end of upright sliding bar (6) and hopper (9) be hinged and this pin joint edge The hopper track (15) on frame plate (3) is slidably connected;The upper end of described hopper buffer unit is connected to air cylinder fixed plate (2) on, and being positioned at the lower section driving cylinder (1), hopper buffer unit is horizontally disposed with, its free end in hopper (9) upset to Push against with hopper (9) when final position is put.
Grain collecting device the most according to claim 1, it is characterised in that: described hopper buffer unit includes gag lever post (18), buffer spring (19) and fixed block (17), it is interior that the two ends of fixed block (17) are respectively fixedly connected with two pieces of frame plates (3) Side, the upper end of gag lever post (18) is fixedly connected on fixed block (17), buffer spring (19) be socketed in gag lever post (18) upper and The upper end of buffer spring (19) is fixedly connected on fixed block (17).
Grain collecting device the most according to claim 1, it is characterised in that: described hopper (9) and the hinge of frame plate (3) Contact is the first pin joint, and the pin joint of upright sliding bar (6) and hopper (9) is the second pin joint, and hopper track (15) is with the One pin joint is distance is radius one section of arc-shaped slot between the center of circle, the first pin joint and the second pin joint, hopper track (15) wherein distance near one end to movable base (11) of driving cylinder (1) is less than the other end to can in horizontal direction The distance of movable base (11).
Grain collecting device the most according to claim 3, it is characterised in that: described driving cylinder (11) is horizontally disposed with, When second pin joint slides into one end of hopper track (15) close driving cylinder (1), at the second pin joint and the first pin joint On same level line.
Grain collecting device the most according to claim 1, it is characterised in that: described hopper (9) is hinged with frame plate (3) Referring to, this pin joint includes the first bearing pin (14), and the hopper port of one end of the first bearing pin (14) and hopper (9) is fixed near sack One end outer wall of device (13) is fixing to be connected, and the other end of the first bearing pin (14) is hinged with frame plate (3).
Grain collecting device the most according to claim 1, it is characterised in that: the hopper port of described hopper (9) is away from sack Being fixedly connected with the second bearing pin (8) on one end outer wall of fixing device (13), the other end of the second bearing pin (8) is slidably connected at material In bucket track (15), described upright sliding bar (6) is provided with the chute (7) of vertical direction, and the second bearing pin (8) is slidably connected simultaneously In chute (7).
Grain collecting device the most according to claim 1, it is characterised in that: the hopper port of described hopper (9) is away from bag One end of sub-fixing device (13) is hinged with baffle plate (4).
Grain collecting device the most according to claim 1, it is characterised in that: described hopper (9) is away from driving cylinder (1) One end be angle (16), the distance of angle (16) lower end to hopper (9) and the pin joint of frame plate (3) is more than on angle (16) End is to the distance of hopper (9) with the pin joint of frame plate (3).
Grain collecting device the most according to claim 1, it is characterised in that: the bottom of described movable base (11) Being provided with four wheels (10), four wheels is respectively provided with brake gear on (10).
CN201610674640.XA 2016-08-16 2016-08-16 Grain collecting device Pending CN106275598A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610674640.XA CN106275598A (en) 2016-08-16 2016-08-16 Grain collecting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610674640.XA CN106275598A (en) 2016-08-16 2016-08-16 Grain collecting device

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CN106275598A true CN106275598A (en) 2017-01-04

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Application Number Title Priority Date Filing Date
CN201610674640.XA Pending CN106275598A (en) 2016-08-16 2016-08-16 Grain collecting device

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108285040A (en) * 2017-12-12 2018-07-17 安徽省光明粮油工业有限公司 A kind of feeder equipment
CN109264423A (en) * 2018-08-24 2019-01-25 王朝红 A kind of paddy sunning collection device suitable for small rural cement airing field
CN112173179A (en) * 2020-11-05 2021-01-05 白四春 Special grain handling equipment of commodity circulation

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104843203A (en) * 2015-05-18 2015-08-19 慈溪市南盾电器有限公司 Grain bagging apparatus
CN104843204A (en) * 2015-05-18 2015-08-19 慈溪市南盾电器有限公司 Grain collecting device
CN104859872A (en) * 2015-05-18 2015-08-26 慈溪市南盾电器有限公司 Grain bagging machine
CN204750608U (en) * 2015-05-18 2015-11-11 慈溪市南盾电器有限公司 Grain collection device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104843203A (en) * 2015-05-18 2015-08-19 慈溪市南盾电器有限公司 Grain bagging apparatus
CN104843204A (en) * 2015-05-18 2015-08-19 慈溪市南盾电器有限公司 Grain collecting device
CN104859872A (en) * 2015-05-18 2015-08-26 慈溪市南盾电器有限公司 Grain bagging machine
CN204750608U (en) * 2015-05-18 2015-11-11 慈溪市南盾电器有限公司 Grain collection device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108285040A (en) * 2017-12-12 2018-07-17 安徽省光明粮油工业有限公司 A kind of feeder equipment
CN109264423A (en) * 2018-08-24 2019-01-25 王朝红 A kind of paddy sunning collection device suitable for small rural cement airing field
CN109264423B (en) * 2018-08-24 2020-06-09 绍兴市米莉农业科技有限公司 Rice sunning collection device suitable for rural small-size cement sunning ground
CN112173179A (en) * 2020-11-05 2021-01-05 白四春 Special grain handling equipment of commodity circulation

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Application publication date: 20170104