Positioning device for logistics supply chain

Abstract

The invention relates to the technical field of logistics supply chains, in particular to a positioning device for a logistics supply chain, which comprises symmetrically distributed brackets, symmetrically distributed rotating rollers are rotatably connected between the brackets, the rotating rollers are in transmission connection through a conveying belt, a top plate is fixed at the tops of the brackets, and a mounting plate is arranged below the top plate. A scanner and a cleaning mechanism are mounted at the bottom of the mounting plate, the cleaning mechanism is used for cleaning the top of an article, and the mounting plate is connected with a lifting mechanism which is used for driving the mounting plate to move up and down; according to the device, the height of the scanner can be adaptively adjusted according to the height of the article, so that the height of the scanner changes along with the change of the height of the article, and on one hand, the view range of the scanner can cover the whole two-dimensional code or bar code; on the other hand, it can be guaranteed that the distance between the scanner and the two-dimensional code or the bar code is not too large, scanning details are clearer, and the scanning success rate, accuracy and efficiency are guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of logistics supply chain, in particular to a positioning device for logistics supply chain. Background Art

[0002] The logistics supply chain integrates corporate logistics, household logistics, non-profit organization logistics and green logistics. We can call it a complete logistics chain or complete supply chain. With the rapid development of economic globalization and enterprise informatization, the original competition between enterprises has been replaced by competition between supply chains. Supply chain management has therefore become a new management model. Logistics connects the various enterprises in the supply chain and is the bond for mutual cooperation between enterprises. Therefore, it is necessary to effectively manage the logistics of the entire supply chain.

[0003] At present, when locating items in the logistics supply chain, most of the items are transported by conveyor belts. During the transportation of the items, the QR code or barcode on the top of the item is scanned by a scanner, and the scan result is uploaded to the cloud platform. The item information is obtained through the cloud platform, and then the item is transported to the designated location based on the item information, thereby completing the positioning of the item.

[0004] However, most scanners in the prior art are fixed and cannot adaptively adjust the distance between the scanner and the object. When the distance between the object and the scanner is small, the scanning range of the scanner may not be able to cover the entire QR code or barcode. When the distance between the object and the scanner is large, the scanning accuracy is reduced, and the details are difficult to identify, which may cause scanning errors. At the same time, dust may adhere to the surface of the QR code or barcode, making it impossible for the scanner to clearly read the information of the QR code or barcode, thereby causing scanning failure. Summary of the invention

[0005] The purpose of the present invention is to provide a positioning device for a logistics supply chain to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A positioning device for a logistics supply chain comprises symmetrically distributed brackets, wherein the brackets are rotatably connected with symmetrically distributed rotating rollers, and the rotating rollers are connected through a conveyor belt transmission. A top plate is fixed on the top of the bracket, and a mounting plate is provided below the top plate. A scanner and a cleaning mechanism are installed at the bottom of the mounting plate, and the cleaning mechanism is used to clean the top of the object, wherein the mounting plate is connected with a lifting mechanism, and the lifting mechanism is used to drive the mounting plate to move up and down, thereby changing the distance between the scanner and the top of the object; before the scanner scans a barcode or a two-dimensional code, the cleaning mechanism will clean the top of the object, thereby ensuring the clarity of the two-dimensional code or the barcode, reducing the situation where the scanner misreads or cannot read, and the mounting plate is driven up and down by the lifting mechanism, thereby adjusting the height of the scanner. For example, when the object is high, the lifting mechanism drives the scanner to move upward through the support plate, so that the field of view of the scanner can cover the entire two-dimensional code or barcode, which is suitable for high objects.

[0008] Preferably: the cleaning mechanism includes a base plate arranged below the mounting plate, a plurality of air outlet holes are provided at the bottom of the base plate, an air pressure cylinder is fixed to the top of the base plate, the air pressure cylinder passes through the mounting plate and is rotatably connected to the mounting plate, the air pressure cylinder is communicated with the plurality of air outlet holes, a air pressure rod passes through the top of the air pressure cylinder, the air pressure rod is slidably connected to the inner wall of the air pressure cylinder, the air pressure rod and the air pressure cylinder are connected to a rotating assembly, and the rotating assembly is used to drive the air pressure rod and the air pressure cylinder to rotate.

[0009] Preferably: the rotating assembly includes a first gear fixed to the outside of the pneumatic rod, a guide cylinder rotatably connected to the bottom of the top plate, a second gear fixed to the outside of the guide cylinder, the second gear meshing with the first gear, a guide rod fixed to the top of the mounting plate, the guide rod extends into the inside of the guide cylinder and is slidably connected to the inner wall of the guide cylinder, wherein a limiting component is provided between the guide cylinder and the guide rod, the limiting component is used to limit the guide rod and the guide cylinder, so that when the guide rod and the guide cylinder are relatively displaced, the guide rod can drive the guide cylinder to rotate, and a connecting component is provided between the pneumatic rod and the pneumatic cylinder, the connecting component is used to connect the two, so that the pneumatic cylinder can rotate with the pneumatic rod.

[0010] Preferably, the limiting component comprises a protrusion fixed on the outside of the guide rod, a spiral groove matched with the protrusion is provided on the inner wall of the guide cylinder, and the protrusion is located inside the spiral groove and is slidably connected to the spiral groove.

[0011] Preferably, the connecting component comprises a guide groove arranged on the side wall of the pneumatic rod, a clamping block is fixed on the outer wall of the pneumatic cylinder, and one end of the clamping block away from the pneumatic cylinder is located inside the guide groove and is slidably connected to the inner wall of the guide groove.

[0012] Preferably: the lifting mechanism includes a support rod fixedly connected to the top of the mounting plate, a piston cylinder is fixed on the top of the top plate, a piston is slidably connected inside the piston cylinder, the support rod passes through the top plate and the bottom of the piston cylinder and is slidably connected to the two, the top of the support rod is fixedly connected to the bottom of the piston, wherein the piston cylinder is connected to an inflation assembly, the inflation assembly is used to inflate the inside of the piston cylinder, a first elastic member is fixed on the top of the mounting plate, and the upper end of the first elastic member is fixedly connected to the top plate.

[0013] Preferably: the inflation component includes a first trough body arranged inside the top plate, a first rotating rod is rotatably connected inside the first trough body, a first baffle is fixed to the outside of the first rotating rod in a symmetrical manner, a fixed plate is fixed to the outside of the first rotating rod, an arc rod is fixedly connected to the bottom of the fixed plate, an arc cylinder adapted to the arc rod is fixed to the bottom of the top plate, one end of the arc rod away from the fixed plate extends into the interior of the arc cylinder and is slidably connected to the inner wall of the arc cylinder, the arc cylinder is connected to an air pipe, and the other end of the air pipe is connected to the piston cylinder.

[0014] Preferably, a self-locking component is provided at the bottom of the top plate, and when the scanner rises to the maximum position, the self-locking component is used to fix the support rod.

[0015] Preferably: the self-locking component includes a limiting cylinder fixed at the bottom of the top plate, the support rod passes through the limiting cylinder and is slidably connected to the limiting cylinder, a pin rod passes through the side wall of the limiting cylinder, a stopper is fixed to one end of the pin rod, the stopper is connected to the side wall of the limiting cylinder through a second elastic member, the other end of the pin rod is in contact with the side wall of the support rod, a pin groove matching the pin rod is provided on the side wall of the support rod, wherein the pin rod is connected to a traction member, and the traction member is used to pull the pin rod to the outside of the pin groove.

[0016] Preferably: the traction member includes a second trough body arranged inside the top plate, a second rotating rod is rotatably connected inside the second trough body, a second baffle plate symmetrically distributed is fixed outside the second rotating rod, a traction rope is fixed outside the second rotating rod, and the other end of the traction rope is fixedly connected to the baffle.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: when scanning an object, the device can adaptively adjust the height of the scanner according to the height of the object, so that the height of the scanner changes with the height of the object. On the one hand, the field of view of the scanner can cover the entire two-dimensional code or barcode, and on the other hand, it can ensure that the distance between the scanner and the two-dimensional code or barcode is not too large, so that the scanning details are clearer, and the scanning success rate, accuracy and efficiency are guaranteed;

[0018] The present invention drives the scanner to move upward through the support plate, and the upward movement of the support plate also drives the air cylinder to move upward. When the air cylinder moves upward, the air rod squeezes the gas inside the air cylinder, so that the gas inside the air cylinder enters the inside of the bottom plate and is discharged from the air outlet. The gas discharged from the air outlet acts on the top of the object, thereby cleaning the dust on the top of the object, thereby ensuring the clarity of the two-dimensional code or bar code, reducing the situation where the scanner misreads or cannot read, and significantly improving the scanning success rate, accuracy and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Schematic diagram of the overall structure of the positioning device in an embodiment of the present invention.

[0020] Figure 2 Schematic diagram of the bottom structure of the top plate in an embodiment of the present invention.

[0021] Figure 3 Schematic diagram of the mounting plate connection structure in an embodiment of the present invention.

[0022] Figure 4 Schematic diagram of the connection structure between the gas pressure rod and the gas pressure cylinder in an embodiment of the present invention.

[0023] Figure 5 Schematic diagram of the internal structure of the bottom plate and the air pressure cylinder in an embodiment of the present invention.

[0024] Figure 6 Schematic diagram of the internal structure of the guide cylinder in an embodiment of the present invention.

[0025] Figure 7 Schematic diagram of the internal structure of the piston cylinder and the limiting cylinder in an embodiment of the present invention.

[0026] In the figure: 1- bracket, 2- cleaning mechanism, 21- air pressure rod, 22- air pressure cylinder, 23- bottom plate, 24- air outlet, 25- block, 26- guide groove, 27- guide rod, 28- guide cylinder, 29- bump, 210- spiral groove, 211- first gear, 212- second gear, 3- lifting mechanism, 31- first trough body, 32- second trough body, 33- first rotating rod, 34- second rotating rod, 35- first Baffle, 36-second baffle, 37-fixing plate, 38-arc rod, 39-arc cylinder, 310-trachea, 311-piston cylinder, 312-support rod, 313-first elastic member, 314-traction rope, 315-piston, 316-limiting cylinder, 317-pin rod, 318-pin groove, 319-second elastic member, 320-block, 4-rotating roller, 5-conveyor belt, 6-top plate, 7-scanner, 8-mounting plate. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0028] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0029] In one embodiment, see Figure 1 and Figure 2 A positioning device for a logistics supply chain comprises symmetrically distributed brackets 1, wherein the brackets 1 are rotatably connected with symmetrically distributed rotating rollers 4, and the rotating rollers 4 are connected through a conveyor belt 5. A top plate 6 is fixed on the top of the bracket 1, and a mounting plate 8 is provided below the top plate 6. A scanner 7 and a cleaning mechanism 2 are installed at the bottom of the mounting plate 8. The cleaning mechanism 2 is used for cleaning the top of the object, wherein the mounting plate 8 is connected with a lifting mechanism 3, and the lifting mechanism 3 is used for driving the mounting plate 8 to move up and down, thereby changing the distance between the scanner 7 and the top of the object.

[0030] In this embodiment, when the device positions the object, one of the rotating rollers 4 is driven to rotate by an external motor, and the rotating roller 4 drives the conveyor belt 5 to circulate, and the conveyor belt 5 transports the object. When the object moves to the bottom of the scanner 7, the scanner 7 scans the barcode or QR code on the top of the object, and uploads the scanning result to the cloud platform, obtains the object information through the cloud platform, and then transports the object to the designated position according to the object information, thereby completing the positioning of the object. A cleaning mechanism 2 is installed at the bottom of the mounting plate 8. Before the scanner 7 scans the barcode or QR code, the cleaning mechanism 2 will clean the top of the object, thereby ensuring the clarity of the QR code or barcode, reducing the situation where the scanner 7 misreads or cannot read, and significantly improving the scanning success rate, accuracy and efficiency. In addition, the mounting plate 8 can be driven up and down by the lifting mechanism 3 Movement, thereby regulating the height of the scanner 7. For example, when the object is high, the lifting mechanism 3 drives the scanner 7 to move upward through the support plate, so that the field of view of the scanner 7 can cover the entire two-dimensional code or barcode, which is suitable for higher objects and can effectively avoid the situation where the scanner 7 cannot completely scan the two-dimensional code or barcode, resulting in an inability to read, thereby improving the scanning success rate, accuracy and efficiency. That is, the present invention can adaptively regulate the height of the scanner 7 through the lifting mechanism 3, and the height of the scanner 7 will change with the height of the object. On the one hand, the field of view of the scanner 7 can cover the entire two-dimensional code or barcode, and on the other hand, it can ensure that the distance between the scanner 7 and the two-dimensional code or barcode will not be too large, making the scanning details clearer, thereby ensuring the scanning success rate, accuracy and efficiency.

[0031] See also Figure 4 and Figure 5 The cleaning mechanism 2 includes a bottom plate 23 arranged below the mounting plate 8, a plurality of air outlet holes 24 are arranged at the bottom of the bottom plate 23, a pneumatic cylinder 22 is fixed to the top of the bottom plate 23, the pneumatic cylinder 22 passes through the mounting plate 8 and is rotatably connected to the mounting plate 8, the pneumatic cylinder 22 is communicated with the plurality of air outlet holes 24, wherein a pneumatic rod 21 passes through the top of the pneumatic cylinder 22, the pneumatic rod 21 is slidably connected to the inner wall of the pneumatic cylinder 22, the pneumatic rod 21 and the pneumatic cylinder 22 are connected with a rotating assembly, and the rotating assembly is used to drive the pneumatic rod 21 and the pneumatic cylinder 22 to rotate;

[0032] When an object passes under the bottom plate 23, the lifting mechanism 3 drives the mounting plate 8 to move upward, and the mounting plate 8 drives the air cylinder 22 to move upward. When the air cylinder 22 moves upward, the air rod 21 moves downward relative to the air cylinder 22. At this time, the air rod 21 squeezes the gas inside the air cylinder 22, so that the gas inside the air cylinder 22 enters the bottom plate 23 and is discharged from the air outlet 24. The gas discharged from the air outlet 24 acts on the top of the object, thereby cleaning the dust on the top of the object, effectively preventing the dust from being adsorbed on the barcode or The interference caused by the QR code surface on the scanning of the scanner 7 ensures that the scanner 7 can clearly read the information of the barcode or QR code. In addition, the pneumatic rod 21 and the pneumatic cylinder 22 are connected with a rotating component. While the pneumatic rod 21 squeezes the gas inside the pneumatic cylinder 22, the rotating component will also drive the two to rotate. The pneumatic cylinder 22 drives the bottom plate 23 to rotate, and the bottom plate 23 drives the air outlet 24 to move in a circle, which effectively improves the cleaning effect on the top of the object. The pneumatic rod 21 can be rotatably connected to the top plate 6 through a bearing, and the pneumatic cylinder 22 can be rotatably connected to the mounting plate 8 through a bearing.

[0033] See also Figure 4 and Figure 6 The rotating assembly includes a first gear 211 fixed to the outside of the pneumatic rod 21, a guide cylinder 28 rotatably connected to the bottom of the top plate 6, a second gear 212 is fixed to the outside of the guide cylinder 28, and the second gear 212 is meshed with the first gear 211. A guide rod 27 is fixed to the top of the mounting plate 8, and the guide rod 27 extends into the inside of the guide cylinder 28 and is slidably connected to the inner wall of the guide cylinder 28, wherein a limiting component is provided between the guide cylinder 28 and the guide rod 27, and the limiting component is used to limit the guide rod 27 and the guide cylinder 28, so that when the guide rod 27 and the guide cylinder 28 are relatively displaced, the guide rod 27 can drive the guide cylinder 28 to rotate, and a connecting component is provided between the pneumatic rod 21 and the pneumatic cylinder 22, and the connecting component is used to connect the two, so that the pneumatic cylinder 22 can rotate with the pneumatic rod 21;

[0034] When an object passes under the bottom plate 23, the lifting mechanism 3 drives the mounting plate 8 to move upward, and the mounting plate 8 also drives the guide rod 27 to move inside the guide cylinder 28. When the guide rod 27 moves, the guide cylinder 28 is driven to rotate through the limiting component, wherein the guide cylinder 28 can be rotatably connected to the top plate 6 through a bearing, and when the guide cylinder 28 rotates, the pneumatic rod 21 is driven to rotate through the engagement of the first gear 211 and the second gear 212. The pneumatic rod 21 drives the pneumatic cylinder 22 to rotate through the connecting component, and the pneumatic cylinder 22 drives the bottom plate 23 to rotate, so that the air outlet 24 at the bottom of the bottom plate 23 can move in a circle, which effectively increases the cleaning range of the top of the object and thus ensures the cleaning effect.

[0035] See also Figure 6 The limiting component includes a convex point 29 fixed to the outside of the guide rod 27, and a spiral groove 210 adapted to the convex point 29 is provided on the inner wall of the guide cylinder 28. The convex point 29 is located inside the spiral groove 210 and is slidably connected to the spiral groove 210;

[0036] When the guide rod 27 moves upward, it also drives the protrusion 29 to move upward. When the protrusion 29 moves upward, it squeezes the guide cylinder 28 through the spiral groove 210, thereby causing the guide cylinder 28 to rotate. When the guide cylinder 28 rotates, the engagement of the first gear 211 and the second gear 212 drives the pneumatic rod 21 to rotate, thereby enabling the bottom plate 23 to rotate, effectively improving the cleaning effect on the top of the object.

[0037] See also Figure 5 The connecting component includes a guide groove 26 arranged on the side wall of the pneumatic rod 21, and a block 25 is fixed on the outer wall of the pneumatic cylinder 22. The end of the block 25 away from the pneumatic cylinder 22 is located inside the guide groove 26 and is slidably connected to the inner wall of the guide groove 26;

[0038] When the pneumatic cylinder 22 moves up and down relative to the pneumatic rod 21, it also drives the block 25 to move inside the guide groove 26. The guide groove 26 limits the guide cylinder 28 through the block 25, so that the guide cylinder 28 can rotate following the guide rod 27, and then the guide cylinder 28 can drive the bottom plate 23 to rotate. Through the setting of the guide groove 26 and the block 25, the pneumatic cylinder 22 moves up and down relative to the pneumatic rod 21, and the pneumatic rod 21 can also drive the pneumatic cylinder 22 to rotate.

[0039] See also Figure 3The lifting mechanism 3 includes a support rod 312 fixedly connected to the top of the mounting plate 8, a piston cylinder 311 is fixed to the top of the top plate 6, a piston 315 is slidably connected inside the piston cylinder 311, the support rod 312 passes through the top plate 6 and the bottom of the piston cylinder 311 and is slidably connected to the two, the top of the support rod 312 is fixedly connected to the bottom of the piston 315, wherein the piston cylinder 311 is connected to an inflation component, and the inflation component is used to inflate the inside of the piston cylinder 311, and a first elastic member 313 is fixedly connected to the top of the mounting plate 8, and the upper end of the first elastic member 313 is fixedly connected to the top plate 6;

[0040] When the conveyor belt 5 transports the item to a certain position, the inflation component inflates the piston cylinder 311. The air pressure inside the piston cylinder 311 increases and squeezes the piston 315, so that the piston 315 drives the support rod 312 to move upward. The support rod 312 moves upward and pulls the mounting plate 8, so that the mounting plate 8 drives the scanner 7 to move upward. When the item moves to the other side of the scanner 7, the piston cylinder 311 begins to release pressure. The mounting plate 8 drives the scanner 7 to move downward under the action of the first elastic member 313. The first elastic member 313 can be a spring. Through this structure, the height of the scanner 7 can be adaptively adjusted. The height of the scanner 7 will change with the height of the item. On the one hand, the field of view of the scanner 7 can cover the entire two-dimensional code or barcode. On the other hand, it can also ensure that the distance between the scanner 7 and the two-dimensional code or barcode will not be too large, making the scanning details clearer and ensuring the scanning success rate, accuracy and efficiency.

[0041] See also Figure 1 , Figure 3 and Figure 7 The inflation assembly includes a first slot body 31 arranged inside the top plate 6, a first rotating rod 33 is rotatably connected inside the first slot body 31, a first baffle 35 symmetrically distributed is fixed outside the first rotating rod 33, a fixing plate 37 is fixed outside the first rotating rod 33, an arc rod 38 is fixedly connected to the bottom of the fixing plate 37, an arc cylinder 39 adapted to the arc rod 38 is fixed to the bottom of the top plate 6, one end of the arc rod 38 away from the fixing plate 37 extends into the arc cylinder 39 and is slidably connected to the inner wall of the arc cylinder 39, the arc cylinder 39 is connected to the air pipe 310, and the other end of the air pipe 310 is connected to the piston cylinder 311;

[0042] When the conveyor belt 5 conveys the article to a certain position, the article pushes the first baffle plate 35, so that the first baffle plate 35 drives the first rotating rod 33 to rotate. While the first rotating rod 33 rotates, the arc rod 38 is driven to slide inside the arc cylinder 39 through the fixed plate 37. The arc rod 38 squeezes the gas inside the arc cylinder 39, so that the gas inside the arc cylinder 39 enters the piston cylinder 311 through the air pipe 310, thereby increasing the gas pressure inside the piston cylinder 311 and driving the piston 315 to move upward. When the article moves to the other side of the first baffle plate 35, the first baffle plate 35 is automatically reset under the action of gravity, and the first rotating rod 33 drives the arc rod 38 to automatically reset through the fixed plate 37. Negative pressure is formed inside the piston cylinder 311, thereby extracting the gas inside the piston cylinder 311. Negative pressure is formed inside the piston cylinder 311, and then the piston 315 drives the mounting plate 8 to move downward through the support rod 312, so that the scanner 7 is automatically reset. The rotation amplitude of the first rotating rod 33 driven by the first baffle 35 will change with the change of the height of the object, that is, the higher the object is, the greater the degree of squeezing of the first baffle 35 by the object, the greater the inclination angle of the first baffle 35, the greater the rotation angle of the first rotating rod 33, and the greater the degree of squeezing of the gas inside the arc cylinder 39 by the arc rod 38, so that more gas can enter the piston cylinder 311 through the air pipe 310, and then the amplitude of the upward movement of the scanner 7 is also greater.

[0043] See also Figure 3 , a self-locking component is provided at the bottom of the top plate 6, and when the scanner 7 rises to the maximum position, the self-locking component is used to fix the support rod 312;

[0044] When the object moves to the other side of the first baffle plate 35, the object no longer squeezes the first baffle plate 35. The first baffle plate 35 drives the rotating rod to automatically reset under the action of gravity. The rotating rod drives the arc rod 38 to reset through the fixing plate 37. At the same time, the mounting plate 8 automatically resets under the action of the first elastic member 313. At this time, although the object moves to the other side of the first baffle plate 35, it does not move to the other side of the scanner 7. The scanner 7 may contact the top of the object while resetting, thereby causing the scanner 7 to be unable to scan the QR code or bar code on the top of the object. In severe cases, the scanner 7 may also be damaged. In this embodiment, when the scanner 7 rises to the maximum position, the self-locking component will automatically fix the support rod 312, thereby fixing the mounting plate 8 and the scanner 7. Even if the object moves to the other side of the first baffle plate 35, the object no longer squeezes the first baffle plate 35, and the support plate will not move downward under the action of the first elastic member 313, thereby ensuring the distance between the scanner 7 and the top of the object.

[0045] See also Figure 7The self-locking component includes a limiting cylinder 316 fixed to the bottom of the top plate 6, the support rod 312 passes through the limiting cylinder 316 and is slidably connected to the limiting cylinder 316, a pin rod 317 passes through the side wall of the limiting cylinder 316, one end of the pin rod 317 is fixed with a stopper 320, the stopper 320 is connected to the side wall of the limiting cylinder 316 through a second elastic member 319, and the other end of the pin rod 317 is in contact with the side wall of the supporting rod 312, and a pin groove 318 adapted to the pin rod 317 is provided on the side wall of the supporting rod 312, wherein the pin rod 317 is connected to a traction member, and the traction member is used to pull the pin rod 317 to the outside of the pin groove 318;

[0046] When the mounting plate 8 drives the support rod 312 to move upward, the support rod 312 will also slide inside the limiting cylinder 316. When the scanner 7 rises to the highest position, the end of the pin rod 317 automatically enters into one of the pin grooves 318 under the action of the stopper 320 and the second elastic member 319. At this time, the pin rod 317 plays a fixed supporting role for the support rod 312 through the pin groove 318, thereby limiting the downward movement of the support rod 312, effectively improving the stability of the mounting plate 8 and ensuring the scanner 7 and the top of the object. The second elastic member 319 can be a spring. When the object is completely moved to the other side of the scanner 7, the traction member automatically pulls the pin 317 to the outside of the pin groove 318, and the fixation of the pin 317 is lost. The mounting plate 8 drives the scanner 7 to automatically reset under the action of the first elastic member 313. The bottom of the pin 317 has an inclined surface at one end close to the support rod 312. When the support rod 312 moves upward, the inclined surface of the pin 317 will be squeezed by the pin groove 318, and the pin 317 will not interfere with the upward movement of the support rod 312.

[0047] See also Figure 1 , Figure 3 and Figure 7 The traction member includes a second slot body 32 arranged inside the top plate 6, a second rotating rod 34 is rotatably connected inside the second slot body 32, a second baffle 36 symmetrically distributed is fixed outside the second rotating rod 34, a traction rope 314 is fixed outside the second rotating rod 34, and the other end of the traction rope 314 is fixedly connected to the stopper 320;

[0048] When the object moves to the other side of the scanner 7, the object pushes the second baffle 36, so that the second baffle 36 drives the second rotating rod 34 to rotate. The second rotating rod 34 rotates while winding the traction rope 314, so that the traction rope 314 pulls the stopper 320, and the traction rope 314 pulls the pin rod 317 to the outside of the pin groove 318 through the stopper 320, thereby releasing the fixation of the pin rod 317 to the support rod 312. When the object moves to the other side of the second baffle 36, the object does not squeeze the second baffle 36, and the second baffle 36 automatically resets under the action of gravity. The second rotating rod 34 unwinds the traction rope 314, so that the traction rope 314 no longer pulls the pin rod 317 through the stopper 320.

[0049] Working principle: The device uses a conveyor belt 5 to convey articles. When the conveyor belt 5 conveys the articles to a certain position, the articles push the first baffle plate 35, so that the first baffle plate 35 drives the first rotating rod 33 to rotate. When the first rotating rod 33 rotates, it drives the arc rod 38 to slide inside the arc cylinder 39 through the fixed plate 37. The arc rod 38 squeezes the gas inside the arc cylinder 39, so that the gas inside the arc cylinder 39 enters the piston cylinder 311 through the air pipe 310, thereby increasing the air pressure inside the piston cylinder 311 and driving the piston 315 to move upward. The piston 315 drives the support rod 312 to move upward. When the support rod 312 moves upward, it pulls the mounting plate 8, so that the mounting plate 8 drives the scanner 7 to move upward, and can play an adaptive adjustment role on the height of the scanner 7, so that the height of the scanner 7 changes with the height of the object. On the one hand, the field of view of the scanner 7 can cover the entire two-dimensional code or barcode, and on the other hand, it can ensure that the distance between the scanner 7 and the two-dimensional code or barcode is not too large, so that the scanning details are clearer, and the scanning success rate, accuracy and efficiency are guaranteed. When the object moves below the scanner 7, the scanner 7 scans the barcode or two-dimensional code on the top of the object, and uploads the scanning result to the cloud platform, obtains the object information through the cloud platform, and then transports the object to the specified location according to the object information, thereby completing the positioning of the object;

[0050] When the support plate moves upward, it also drives the air cylinder 22 and the guide rod 27 to move upward. When the air cylinder 22 moves upward, the air rod 21 moves downward relative to the air cylinder 22. At this time, the air rod 21 squeezes the gas inside the air cylinder 22, so that the gas inside the air cylinder 22 enters the bottom plate 23 and is discharged from the air outlet 24. The gas discharged from the air outlet 24 acts on the top of the object, thereby cleaning the dust on the top of the object. When the guide rod 27 moves upward, it drives the convex point 29 to move upward. When the convex point 29 moves upward, it squeezes the guide cylinder 28 through the spiral groove 210, thereby causing the guide cylinder 28 to rotate. When the guide cylinder 28 rotates, the engagement of the first gear 211 and the second gear 212 drives the air rod 21 to rotate. The air rod 21 drives the air cylinder 22 to rotate through the guide groove 26 and the block 25. The air cylinder 22 drives the bottom plate 23 to rotate, and the bottom plate 23 drives the air outlet 24 to move in a circle, which effectively improves the cleaning effect on the top of the object.

[0051] In addition, when the scanner 7 rises to the highest position, the end of the pin rod 317 automatically enters into one of the pin grooves 318, and the pin rod 317 plays a fixed supporting role on the support rod 312 through the pin groove 318, thereby limiting the downward movement of the support rod 312, effectively improving the stability of the mounting plate 8, and ensuring the distance between the scanner 7 and the top of the object. When the object moves to the other side of the scanner 7, the object pushes the second baffle plate 36, and the second baffle plate 36 drives the second rotating rod 34 to rotate. While the second rotating rod 34 rotates, the traction rope 314 is reeled in, so that the traction rope 314 pulls the stopper 320, and the traction rope 314 pulls the pin rod 317 to the outside of the pin groove 318 through the stopper 320, thereby releasing the fixation of the pin rod 317 to the support rod 312. The fixation of the pin rod 317 is lost, and the mounting plate 8 drives the scanner 7 to reset.

[0052] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A positioning device for a logistics supply chain, comprising symmetrically distributed brackets; characterized in that: The brackets are rotatably connected with symmetrically distributed rotating rollers, which are connected by a conveyor belt transmission. A top plate is fixed on the top of the bracket, a mounting plate is provided under the top plate, a scanner and a cleaning mechanism are installed at the bottom of the mounting plate, and the cleaning mechanism is used to clean the top of the object. The mounting plate is connected with a lifting mechanism, and the lifting mechanism is used to drive the mounting plate to move up and down, thereby changing the distance between the scanner and the top of the object.

2. A positioning device for logistics supply chain according to claim 1, characterized in that: The cleaning mechanism includes a base plate arranged below the mounting plate, a plurality of air outlet holes being provided at the bottom of the base plate, a pneumatic cylinder being fixed to the top of the base plate, the pneumatic cylinder penetrating the mounting plate and being rotatably connected to the mounting plate, the pneumatic cylinder being communicated with the plurality of air outlet holes, a pneumatic rod being penetrating the top of the pneumatic cylinder, the pneumatic rod being slidably connected to the inner wall of the pneumatic cylinder, the pneumatic rod and the pneumatic cylinder being connected to a rotating assembly, the rotating assembly being used to drive the pneumatic rod and the pneumatic cylinder to rotate.

3. A positioning device for logistics supply chain according to claim 2, characterized in that: The rotating assembly includes a first gear fixed to the outside of the pneumatic rod, a guide cylinder rotatably connected to the bottom of the top plate, a second gear fixed to the outside of the guide cylinder, the second gear meshing with the first gear, a guide rod fixed to the top of the mounting plate, the guide rod extends into the inside of the guide cylinder and is slidably connected to the inner wall of the guide cylinder, wherein a limiting component is provided between the guide cylinder and the guide rod, the limiting component is used to limit the guide rod and the guide cylinder, so that when the guide rod and the guide cylinder are relatively displaced, the guide rod can drive the guide cylinder to rotate, and a connecting component is provided between the pneumatic rod and the pneumatic cylinder, the connecting component is used to connect the two, so that the pneumatic cylinder can rotate with the pneumatic rod.

4. A positioning device for logistics supply chain according to claim 3, characterized in that: The limiting component includes a convex point fixed on the outside of the guide rod, and a spiral groove matched with the convex point is provided on the inner wall of the guide cylinder. The convex point is located inside the spiral groove and is slidably connected with the spiral groove.

5. A positioning device for logistics supply chain according to claim 3, characterized in that: The connecting component comprises a guide groove arranged on the side wall of the air pressure rod, a clamping block is fixed on the outer wall of the air pressure cylinder, and one end of the clamping block away from the air pressure cylinder is located inside the guide groove and is slidably connected to the inner wall of the guide groove.

6. A positioning device for logistics supply chain according to claim 1, characterized in that: The lifting mechanism includes a support rod fixedly connected to the top of the mounting plate, a piston cylinder fixed on the top of the top plate, a piston slidably connected inside the piston cylinder, the support rod passes through the top plate and the bottom of the piston cylinder and is slidably connected to the two, the top of the support rod is fixedly connected to the bottom of the piston, wherein the piston cylinder is connected to an inflation component, the inflation component is used to inflate the inside of the piston cylinder, a first elastic member is fixed on the top of the mounting plate, and the upper end of the first elastic member is fixedly connected to the top plate.

7. A positioning device for logistics supply chain according to claim 6, characterized in that: The inflation assembly includes a first trough body arranged inside the top plate, a first rotating rod is rotatably connected inside the first trough body, a first baffle is fixed to the outside of the first rotating rod in a symmetrical manner, a fixed plate is fixed to the outside of the first rotating rod, an arc rod is fixedly connected to the bottom of the fixed plate, an arc cylinder adapted to the arc rod is fixed to the bottom of the top plate, one end of the arc rod away from the fixed plate extends into the interior of the arc cylinder and is slidably connected to the inner wall of the arc cylinder, the arc cylinder is connected to an air pipe, and the other end of the air pipe is connected to the piston cylinder.

8. A positioning device for a logistics supply chain according to claim 6 or 7, characterized in that: A self-locking component is provided at the bottom of the top plate. When the scanner rises to the maximum position, the self-locking component is used to fix the support rod.

9. A positioning device for logistics supply chain according to claim 8, characterized in that: The self-locking component includes a limiting cylinder fixed at the bottom of the top plate, a support rod passes through the limiting cylinder and is slidably connected to the limiting cylinder, a pin rod passes through the side wall of the limiting cylinder, a stopper is fixed to one end of the pin rod, the stopper is connected to the side wall of the limiting cylinder through a second elastic member, and the other end of the pin rod is in contact with the side wall of the support rod, a pin groove matching the pin rod is provided on the side wall of the support rod, wherein the pin rod is connected to a traction member, and the traction member is used to pull the pin rod to the outside of the pin groove.

10. A positioning device for logistics supply chain according to claim 9, characterized in that: The traction member includes a second slot body arranged inside the top plate, a second rotating rod is rotatably connected inside the second slot body, a second baffle plate symmetrically distributed is fixed outside the second rotating rod, a traction rope is fixed outside the second rotating rod, and the other end of the traction rope is fixedly connected to the baffle.

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