CN110577054A - logistics roller conveying assembly line - Google Patents

logistics roller conveying assembly line Download PDF

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Publication number
CN110577054A
CN110577054A CN201910889004.2A CN201910889004A CN110577054A CN 110577054 A CN110577054 A CN 110577054A CN 201910889004 A CN201910889004 A CN 201910889004A CN 110577054 A CN110577054 A CN 110577054A
Authority
CN
China
Prior art keywords
connecting rod
lifter
magnet steel
folding leg
reversible
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.)
Withdrawn
Application number
CN201910889004.2A
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Chinese (zh)
Inventor
叶锦标
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.)
Quanzhou Kai Yun Network Technology Service Co Ltd
Original Assignee
Quanzhou Kai Yun Network Technology Service Co Ltd
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 Quanzhou Kai Yun Network Technology Service Co Ltd filed Critical Quanzhou Kai Yun Network Technology Service Co Ltd
Priority to CN201910889004.2A priority Critical patent/CN110577054A/en
Publication of CN110577054A publication Critical patent/CN110577054A/en
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • B65G13/00Roller-ways
    • B65G13/08Roller-ways of curved form; with branch-offs
    • 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
    • B65G13/00Roller-ways
    • B65G13/11Roller frames
    • B65G13/12Roller frames adjustable
    • 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
    • B65G41/00Supporting frames or bases for conveyors as a whole, e.g. transportable conveyor frames
    • B65G41/001Supporting frames or bases for conveyors as a whole, e.g. transportable conveyor frames with the conveyor adjustably mounted on the supporting frame or base

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Load-Engaging Elements For Cranes (AREA)

Abstract

The invention discloses a logistics roller conveying assembly line, which structurally comprises a support and a conveying table, wherein the conveying table is provided with side plates, rollers, a folding frame and a lifter, and the logistics roller conveying assembly line has the beneficial effects that: can lift in the adjustment tank at permanent magnetism lifting device and the mutually supporting of pulling up the ware under drive connecting rod, because the folding leg is being connected to the connecting rod, so it also can drive the folding leg and go up and down to go up and down at the connecting rod lift, thereby adjust the height of folding leg, permanent magnetism lifting device produces powerful magnetic attraction under the mutually supporting of reversible magnet steel and fixed magnet steel, thereby make the connecting rod can not break away from the fixed of draw-in groove, the magnetic attraction that unloads when reversible magnet steel conversion angle, thereby unload the connecting rod, make the folding leg descend, through the magnetic attraction and the lift of the lifting control connecting rod who hangs the silk, the power saving in time, put in place in one step, need not carry out the regulation of folding leg through manual regulation support, the transfer rate and the efficiency of cylinder assembly line have been improved.

Description

Logistics roller conveying assembly line
Technical Field
The invention relates to the field of roller production lines, in particular to a logistics roller conveying production line.
Background
in the commodity circulation conveying system, cylinder production line is the commonly used conveying mode, and cylinder production line influences the speed that the commodity circulation was carried, also has certain influence to putting on the shelf of commodity circulation simultaneously, and cylinder production line has different design modes according to different needs, and some are not only the conveying, still have the material loading function of lift.
Aiming at the current logistics roller conveying production line, a relative scheme is established for the following problems:
When the existing logistics roller conveying production line carries out logistics conveying and feeding, the packages are required to be conveyed to logistics cabinets with different heights, once the required heights are difficult to adjust, the conveying speed of the packages can be affected, so that the high requirements are met in the aspect of roller lifting adjustment, the general roller conveying lifting is adjusted by adjusting the height of the support, however, the manual adjustment is needed by workers, the workload and the working difficulty of the height adjustment can be increased if the roller production line is long, and meanwhile, the effect required to be achieved by the logistics conveying can not be achieved necessarily.
Disclosure of Invention
The invention mainly aims to overcome the defects of the prior art and provide a logistics roller conveying production line.
The invention is realized by adopting the following technical scheme: a logistics roller conveying assembly line structurally comprises a support and a conveying table, wherein the support is welded on two sides of the bottom of the conveying table, the conveying table is welded on the top of the support, the support is provided with a travelling wheel, and the travelling wheel is connected to the bottom of the support through a bolt; the conveying table is provided with side plates, rollers, a folding rack and a lifter, the side plates are embedded at two ends of the rollers, the rollers are uniformly laid between the side plates, the folding rack is connected between the rollers and the lifter through bolts, and the lifter is connected to the folding rack through bolts.
as an optimization, the folding leg is equipped with the connecting rod, the connecting rod passes through threaded connection between the folding leg, the connecting rod is the metal material, the connecting rod is circular shaft-like structure.
As optimization, the riser is equipped with adjustment tank, permanent magnetism lifts by crane ware, draws and rises the ware, the adjustment tank inlays and locates the riser both sides, the permanent magnetism lifts by crane the ware and welds inside the riser, it welds in adjustment tank one side to draw and rises the ware, the adjustment tank is F column structure, the permanent magnetism lifts by crane the ware and is 2, it is 2 groups to draw to rise the ware.
as optimization, the adjustment tank is equipped with slide, draw-in groove, the slide welds on the adjustment tank inner wall, the draw-in groove inlays to be located between the slide, the slide is arc platelike structure, the slide is 2, the draw-in groove is 3.
As optimization, the permanent magnet lifting jack is provided with a rotating rod, reversible magnetic steel, a coil and fixed magnetic steel, the rotating rod is embedded between the coil and the reversible magnetic steel, the reversible magnetic steel is embedded on the rotating rod, the coil is arranged between the reversible magnetic steel and the fixed magnetic steel, the fixed magnetic steel is embedded at one end of the rotating rod, the rotating rod is of a circular rod-shaped structure, the rotating rod is made of metal, and the reversible magnetic steel is of a rectangular strip-shaped structure.
And optimally, the reversible magnetic steel and the fixed magnetic steel are symmetrically distributed on the rotating rod.
As optimization, the ware is equipped with hanging wire, motor, pivot, pulley to draw, the hanging wire is connected between connecting rod and pivot, the motor inlays to be located inside the riser, the pivot is welded in the motor top, the pulley welds in the pivot top, the hanging wire is the metal material, the pivot is circular shaft-like structure, the pivot is the metal material, the pulley is 1.
Advantageous effects
When the logistics roller conveying assembly line works:
the lifting device is provided with the adjusting groove, the permanent magnet lifting device and the pulling device, the pulling device is driven to work through the gravity of the connecting rod, the reversible magnetic steel on the permanent magnet lifting device is driven to rotate by the pulling device, so that the permanent magnet lifting device generates magnetism, the connecting rod is sucked up through adsorption, the connecting rod is driven to be lifted under the driving of the pulling device, and then the connecting rod is fixed in the adjusting groove under the adsorption of the permanent magnet lifting device, so that the folding frame is driven to carry out lifting adjustment;
The lifting device is provided with the adjusting groove, the permanent magnet lifting device and the lifting device, when the connecting rod is stressed, the lifting wire can be pulled to move, so that the motor works to drive the permanent magnet lifting device to work, and meanwhile, the rotating shaft is driven to rotate to drive the lifting wire to lift, so that the lifting wire slides under the auxiliary action of the pulley, and meanwhile, the connecting rod is pulled to lift in the adjusting groove;
When the motor drives the reversible magnetic steel on the permanent magnet lifting device to rotate on the rotating rod, two magnetic poles on the reversible magnetic steel are changed in position, the positions of the two magnetic poles on the reversible magnetic steel are opposite to those on the fixed magnetic steel, the coil is cut to generate magnetism, and strong magnetic attraction is generated at two ends of the permanent magnet lifting device, so that the connecting rod made of metal is adsorbed and clamped in the clamping groove;
Through being equipped with an adjustment tank, the adjustment tank is equipped with slide, the draw-in groove, after the card rises in the draw-in groove when the connecting rod lifts by crane the drive of ware at permanent magnetism, the connecting rod stops on certain height, this height has decided the rise height of folding leg, when the folding leg descends, then through the direction that changes reversible magnet steel, make reversible magnet steel and fixed magnet steel homopolar, thereby make the connecting rod at the draw-in groove power of borrowing of breaking away from magnetic attraction, thereby make the connecting rod slip out the draw-in groove under the arc slope of slide, thereby make the connecting rod descend, drive the folding leg simultaneously and descend.
Compared with the prior art, the invention has the beneficial effects that: can lift in the adjustment tank at permanent magnetism lifting device and the mutually supporting of pulling up the ware under drive connecting rod, because the folding leg is being connected to the connecting rod, so it also can drive the folding leg and go up and down to go up and down at the connecting rod lift, thereby adjust the height of folding leg, permanent magnetism lifting device produces powerful magnetic attraction under the mutually supporting of reversible magnet steel and fixed magnet steel, thereby make the connecting rod can not break away from the fixed of draw-in groove, the magnetic attraction that unloads when reversible magnet steel conversion angle, thereby unload the connecting rod, make the folding leg descend, through the magnetic attraction and the lift of the lifting control connecting rod who hangs the silk, the power saving in time, put in place in one step, need not carry out the regulation of folding leg through manual regulation support, the transfer rate and the efficiency of cylinder assembly line have been improved.
Drawings
other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
Fig. 1 is a schematic structural diagram of a logistics roller conveying line according to the invention.
Fig. 2 is an enlarged schematic view of the folding leg according to the present invention.
Fig. 3 is a schematic structural view of the folding leg and the lifter in a matching state.
Fig. 4 is a schematic external side view of the lifter of the present invention.
Fig. 5 is a schematic view of the internal cross-sectional structure of the lifter of the present invention.
Fig. 6 is a schematic structural diagram of the permanent magnet lifter in the unloading state.
Fig. 7 is a schematic structural diagram of the permanent magnet lifting device in an adsorption state.
In the figure: the device comprises a support 1, a conveying table 2, a traveling wheel 10, a side plate 20, a roller 21, a folding frame 22, a lifter 23, a connecting rod 220, an adjusting groove 230, a permanent magnet lifter 231, a pulling lifter 232, a sliding plate A, a clamping groove B, a rotating rod C, reversible magnetic steel D, a coil E, fixed magnetic steel F, a suspension wire G, a motor H, a rotating shaft I and a pulley J.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-7, the present invention provides a technical solution of a logistics roller conveying line: the structure of the device comprises a support 1 and a conveying table 2, wherein the support 1 is welded on two sides of the bottom of the conveying table 2, the conveying table 2 is welded on the top of the support 1, the support 1 is provided with a traveling wheel 10, and the traveling wheel 10 is connected to the bottom of the support 1 through a bolt; the conveying table 2 is provided with side plates 20, rollers 21, a folding rack 22 and a lifter 23, the side plates 20 are embedded at two ends of the rollers 21, the rollers 21 are uniformly laid between the side plates 20, the folding rack 22 is connected between the rollers 21 and the lifter 23 through bolts, the lifter 23 is connected on the folding rack 22 through bolts, the folding rack 22 is provided with a connecting rod 220, the connecting rod 221 is connected between the folding rack 22 through threads, the connecting rod 220 is used for driving the folding rack 22 to be stretched and folded and simultaneously used for driving the folding rack 22 to lift, the lifter 23 is provided with an adjusting groove 230, a permanent magnet lifter 231 and a pulling lifter 232, the adjusting groove 230 is embedded at two sides of the lifter 23, the permanent magnet lifter 231 is welded inside the lifter 23, the pulling lifter 232 is welded at one side of the adjusting groove 230, the adjusting groove 230 is used for driving the folding rack 22 to perform lifting adjustment, the permanent magnet lifter 231 is used for lifting and adjusting the connecting rod 220, the puller 232 is used for controlling the lifting height of the connecting rod 220, the adjusting groove 230 is provided with a sliding plate A and a clamping groove B, the sliding plate A is welded on the inner wall of the adjusting groove 230, the clamping groove B is embedded between the sliding plates A, the sliding plate A is used for assisting in driving the connecting rod 220 to slide, the clamping groove B is used for clamping the connecting rod 220, the permanent magnet lifter 231 is provided with a rotating rod C, a reversible magnetic steel D, a coil E and a fixed magnetic steel F, the rotating rod C is embedded between the coil E and the reversible magnetic steel D, the reversible magnetic steel D is embedded on the rotating rod C, the coil E is arranged between the reversible magnetic steel D and the fixed magnetic steel F, the fixed magnetic steel F is embedded at one end of the rotating rod C, the rotating rod C is used for driving the reversible magnetic steel D to rotate, and the reversible magnetic steel D is matched, reversible magnet steel D is symmetric distribution on bull stick C with fixed magnet steel F, it is equipped with hang spring G, motor H, pivot I, pulley J to draw liter ware 232, hang spring G connects between connecting rod 220 and pivot I, motor H inlays and locates inside riser 23, pivot I welds in the motor H top, pulley J welds in pivot I top, hang spring G is used for pulling connecting rod 220 to rise, motor H is used for driving pivot I to rotate, pulley J is used for supplementary hang spring G to stimulate.
When the lifting device is used, the pulling-up device 232 is driven to work through the gravity of the connecting rod 220, the reversible magnetic steel D on the permanent magnet lifting device 231 is driven to rotate by the pulling-up device 232, so that the permanent magnet lifting device 231 generates magnetism, the connecting rod 220 is sucked up through adsorption, the connecting rod 220 is driven by the pulling-up device 232 to be lifted, and then the connecting rod 220 is fixed in the adjusting groove 23 under the adsorption of the permanent magnet lifting device 231, so that the folding frame 22 is driven to be lifted and lowered for adjustment; when the connecting rod 220 is stressed, the hoisting wire G is pulled to move, so that the motor H works, the permanent magnet lifting device 231 is driven to work, the rotating shaft I is driven to rotate, the hoisting wire G is driven to lift, the hoisting wire G slides under the auxiliary action of the pulley J, and the connecting rod 220 is pulled to lift in the adjusting groove 230; when the motor H drives the reversible magnetic steel D on the permanent magnet lifter 231 to rotate on the rotating rod C, so that the two magnetic poles on the reversible magnetic steel D change positions, and the positions of the two magnetic poles on the reversible magnetic steel D are opposite to those on the fixed magnetic steel F, the cutting coil E generates magnetism, so that strong magnetic attraction is generated at the two ends of the permanent magnet lifter 231, and the connecting rod 220 made of metal is adsorbed and clamped in the clamping groove B; after the card rises in draw-in groove B under the drive of permanent magnetism lifting appliance 231 as connecting rod 220, connecting rod 220 stops on certain height, this height has decided the rise height of folding leg 22, when folding leg 22 descends, then through the direction that changes reversible magnetic steel D, make reversible magnetic steel D and fixed magnetic steel F homopolar, thereby make connecting rod 220 in draw-in groove B the power of borrowing of the magnetic attraction that breaks away from, thereby make connecting rod 220 roll off draw-in groove B under slide A's arc slope, thereby make connecting rod 220 descend, drive folding leg 22 simultaneously and descend.
Compared with the prior art, the invention has the technical progress that:
Can lift in the adjustment tank at permanent magnetism lifting device and the mutually supporting of pulling up the ware under drive connecting rod, because the folding leg is being connected to the connecting rod, so it also can drive the folding leg and go up and down to go up and down at the connecting rod lift, thereby adjust the height of folding leg, permanent magnetism lifting device produces powerful magnetic attraction under the mutually supporting of reversible magnet steel and fixed magnet steel, thereby make the connecting rod can not break away from the fixed of draw-in groove, the magnetic attraction that unloads when reversible magnet steel conversion angle, thereby unload the connecting rod, make the folding leg descend, through the magnetic attraction and the lift of the lifting control connecting rod who hangs the silk, the power saving in time, put in place in one step, need not carry out the regulation of folding leg through manual regulation support, the transfer rate and the efficiency of cylinder assembly line have been improved.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.

Claims (7)

1. The utility model provides a commodity circulation cylinder conveying assembly line, its structure includes support (1), conveying platform (2), support (1) welds in conveying platform (2) bottom both sides, conveying platform (2) weld in support (1) top, its characterized in that:
The walking wheel (10) is arranged on the support (1), and the walking wheel (10) is connected to the bottom of the support (1) through a bolt;
conveying platform (2) are equipped with curb plate (20), running roller (21), folding leg (22), riser (23), curb plate (20) are inlayed and are located running roller (21) both ends, running roller (21) are evenly laid between curb plate (20), folding leg (22) are through bolted connection between running roller (21) and riser (23), riser (23) are through bolted connection on folding leg (22).
2. The logistics drum conveying line of claim 1, wherein: the folding frames (22) are provided with connecting rods (220), and the connecting rods (221) are connected between the folding frames (22) through threads.
3. The logistics drum conveying line of claim 2, wherein: the lifter (23) is provided with an adjusting groove (230), a permanent magnet lifter (231) and a pulling lifter (232), the adjusting groove (230) is embedded in two sides of the lifter (23), the permanent magnet lifter (231) is welded inside the lifter (23), and the pulling lifter (232) is welded on one side of the adjusting groove (230).
4. the logistics roller conveying line of claim 3, wherein: adjusting groove (230) are equipped with slide (A), draw-in groove (B), slide (A) weld on adjusting groove (230) inner wall, draw-in groove (B) inlay and locate between slide (A).
5. The logistics roller conveying line of claim 3, wherein: permanent magnetism lifts by crane ware (231) and is equipped with bull stick (C), reversible magnet steel (D), coil (E), fixed magnet steel (F), bull stick (C) inlays to be located between coil (E) and reversible magnet steel (D), reversible magnet steel (D) inlays to be located on bull stick (C), reversible magnet steel (D) and fixed magnet steel (F) are located between coil (E), fixed magnet steel (F) inlays to be located bull stick (C) one end.
6. The logistics roller conveying line of claim 5, wherein: the reversible magnetic steel (D) and the fixed magnetic steel (F) are symmetrically distributed on the rotating rod (C).
7. The logistics roller conveying line of claim 3, wherein: the puller (232) is provided with a suspension wire (G), a motor (H), a rotating shaft (I) and a pulley (J), the suspension wire (G) is connected between the connecting rod (220) and the rotating shaft (I), the motor (H) is embedded inside the lifter (23), the rotating shaft (I) is welded above the motor (H), and the pulley (J) is welded above the rotating shaft (I).
CN201910889004.2A 2019-09-19 2019-09-19 logistics roller conveying assembly line Withdrawn CN110577054A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910889004.2A CN110577054A (en) 2019-09-19 2019-09-19 logistics roller conveying assembly line

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910889004.2A CN110577054A (en) 2019-09-19 2019-09-19 logistics roller conveying assembly line

Publications (1)

Publication Number Publication Date
CN110577054A true CN110577054A (en) 2019-12-17

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Application Number Title Priority Date Filing Date
CN201910889004.2A Withdrawn CN110577054A (en) 2019-09-19 2019-09-19 logistics roller conveying assembly line

Country Status (1)

Country Link
CN (1) CN110577054A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114212493A (en) * 2021-12-20 2022-03-22 江苏绿能汽配科技有限公司 Transfer chain with function of returning to center
CN114940334A (en) * 2022-07-21 2022-08-26 山东协和学院 Conveyor is used to store commodity circulation in health base

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KR20120003286A (en) * 2010-07-02 2012-01-10 (주)은성이엔지 A foldable auto conveyor
CN204021707U (en) * 2014-07-29 2014-12-17 湖北科迪玻璃工业有限公司 Type variable glass conveyer frames
CN204056991U (en) * 2014-09-05 2014-12-31 国家电网公司 Electric power facility is installed with Moveable telescopic hydraulic lifting handling bridge
CN204528351U (en) * 2015-04-08 2015-08-05 边祥成 Road and bridge construction feedway
CN204802556U (en) * 2015-06-17 2015-11-25 上海斐讯数据通信技术有限公司 Collapsible flexible conveyer
CN106144424A (en) * 2016-08-26 2016-11-23 长沙理工大学 Hydraulic telescopic conveying arm
CN107934362A (en) * 2017-12-20 2018-04-20 惠州市科力达科技有限公司 Logistics roller transmits assembly line
CN108217121A (en) * 2018-02-01 2018-06-29 合肥工业大学 A kind of energy-saving container pipeline
CN108706273A (en) * 2018-05-02 2018-10-26 陆开云 A kind of scalable roller conveyor for pannage
CN109928137A (en) * 2017-12-15 2019-06-25 中车齐齐哈尔车辆有限公司 Roller way system can be turned to

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201587714U (en) * 2010-01-18 2010-09-22 宁波鼎能物流机械制造有限公司 Electric following wheel transmission device
KR20120003286A (en) * 2010-07-02 2012-01-10 (주)은성이엔지 A foldable auto conveyor
CN204021707U (en) * 2014-07-29 2014-12-17 湖北科迪玻璃工业有限公司 Type variable glass conveyer frames
CN204056991U (en) * 2014-09-05 2014-12-31 国家电网公司 Electric power facility is installed with Moveable telescopic hydraulic lifting handling bridge
CN204528351U (en) * 2015-04-08 2015-08-05 边祥成 Road and bridge construction feedway
CN204802556U (en) * 2015-06-17 2015-11-25 上海斐讯数据通信技术有限公司 Collapsible flexible conveyer
CN106144424A (en) * 2016-08-26 2016-11-23 长沙理工大学 Hydraulic telescopic conveying arm
CN109928137A (en) * 2017-12-15 2019-06-25 中车齐齐哈尔车辆有限公司 Roller way system can be turned to
CN107934362A (en) * 2017-12-20 2018-04-20 惠州市科力达科技有限公司 Logistics roller transmits assembly line
CN108217121A (en) * 2018-02-01 2018-06-29 合肥工业大学 A kind of energy-saving container pipeline
CN108706273A (en) * 2018-05-02 2018-10-26 陆开云 A kind of scalable roller conveyor for pannage

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114212493A (en) * 2021-12-20 2022-03-22 江苏绿能汽配科技有限公司 Transfer chain with function of returning to center
CN114212493B (en) * 2021-12-20 2022-11-15 江苏绿能汽配科技有限公司 Transfer chain with function of returning to center
CN114940334A (en) * 2022-07-21 2022-08-26 山东协和学院 Conveyor is used to store commodity circulation in health base
CN114940334B (en) * 2022-07-21 2022-10-21 山东协和学院 Conveyor is used to store commodity circulation in health base

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Application publication date: 20191217