CN108792400B - Intelligent warehouse with automatic access function - Google Patents

Abstract

The invention relates to an intelligent warehouse with automatic access function, which can improve the access efficiency and accuracy, comprising: a plurality of shelves which are staggered with each other and driven by the lifting devices to lift, wherein each shelf is provided with at least one stacking area; the working platform is horizontally arranged above the shelves, an inlet and an outlet are arranged at the positions corresponding to the shelves, and identifiers for acting with the labels on the materials positioned in the inlet and the outlet are respectively embedded in the inlets and the outlets; the conveying main line comprises a main body part horizontally arranged at one side of the goods shelves and a buffer conveyor positioned in front of the main body part, a parking device is arranged at the rear end of the buffer conveyor, a stopping device and a sensing switch are respectively arranged at the rear ends of the main body part and the various stacking areas of the goods shelves, a first reader is arranged at the front section of the main body part, and a sensor is arranged on a working platform between the goods shelves and the conveying main line; the transfer line is horizontally arranged on the other sides of the plurality of shelves; and the storage device is used for transferring materials among the conveying main line, the goods shelves and the transfer line.

Description

Smart warehouse with automatic access function

Technical field

The present invention relates to the technical field of warehouse equipment, and in particular to an intelligent warehouse with automatic access function.

Background technique

In manufacturing enterprises, material management is an indispensable part of the entire enterprise management. Especially in industries that use a large amount of materials and have many types of materials, such as the brake pad production industry, whether the required materials can be obtained quickly and accurately directly affects the production efficiency and production cost of the enterprise.

The current SMT material warehouse is still mainly based on manual control. This model consumes a lot of human resources and has low efficiency. In addition, it is often prone to wrong materials, lost materials, sluggish materials, etc.; the existing semi-automatic three-dimensional warehouse is used to process materials. Management, only batch access can be achieved, and single material access can only be achieved with manual search. Accurate access of individual materials cannot be automatically carried out, and manual write-off is required. Although some existing small automated three-dimensional warehouses can achieve single material access, Accurate access, but the capacity is small and large-scale material management cannot be achieved.

Contents of the invention

The purpose of the present invention is to provide an intelligent warehouse with automatic access function to improve the efficiency and accuracy of material access.

The technical solution adopted by this invention is:

Smart warehouse with automatic access function, including:

A plurality of shelves are arranged staggered with each other and are driven up and down by respective lifting devices. Each shelf has at least one stacking area;

The working platform is arranged horizontally above the plurality of shelves, and the working platform is provided with an inlet and outlet corresponding to each shelf. Each inlet and outlet is embedded with an identification tag for interacting with the labels on the materials located in the inlet and outlet. device;

The main conveying line includes a main part horizontally arranged on a working platform on one side of the plurality of shelves and a buffer conveyor located in front of the main part. The buffer conveyor is provided with a parker at the rear end, and the main part is Stoppers and sensor switches are respectively provided at positions corresponding to the rear ends of each stacking area in each shelf, and a first reader is provided in the front section of the main body part. On the working platform between each shelf and the main conveying line Equipped with sensors;

A transfer line, set horizontally on the work platform on the other side of the multiple shelves; and

The access device transfers materials between the main conveying line, shelves and transfer lines.

Preferably, the main body part of the main conveying line includes independent conveyors respectively arranged corresponding to each shelf, and the first reader is arranged in the front section of the frontmost independent conveyor, and each independent conveyor is connected to each shelf. The stoppers are respectively provided at corresponding positions at the rear end of each stacking area. Each stopper is installed on the side of the independent conveyor away from the shelf. The induction switch is set on the surface of the stopper that interacts with the material. .

Preferably, a guide conveyor belt is also provided on the action surface of the stopper.

Preferably, a fourth reader for reading tags on blocked materials is provided at the parking position.

Preferably, the access device includes an access cylinder, a guide rail, a mounting plate, a slide and a clamping assembly, and the access cylinder is installed on a working platform on a side of the transfer line away from the plurality of shelves. On the top, the guide rail extends perpendicular to the main part of the main conveying line and is arranged on the working platform and is staggered with each inlet and outlet. The mounting plate is vertically installed at the end of the piston rod of the access cylinder and has an installation gap at its bottom end. The width of the installation plate is greater than the width of the transfer line. A rolling screw driven by a servo motor is horizontally arranged on the top wall of the installation gap through a bearing seat. The clamping assembly is threaded on the rolling screw through a slide seat. On the conveyor belt, the clamping assembly has two movable clamping plates extending parallel and facing each other toward the main conveying line.

Preferably, each shelf has a support bottom plate for supporting the stack of materials and connected to the lifting device. A boss matching the inlet and outlet is protruding from the center of the support bottom plate, and the bottom of the working platform surrounds the periphery of each inlet and outlet. Stability rings are provided respectively, and a through slot for the stability rings to pass through is provided at a position of the support bottom plate corresponding to the stability rings.

Preferably, each shelf has a support column and a support bottom plate for supporting the stack of materials and connected to the lifting device. A boss matching the inlet and outlet is protruding from the center of the support bottom plate. The support bottom plate and the support column There is a synchronization mechanism between them.

Preferably, each shelf has a support bottom plate for supporting the stack of materials and connected to the lifting device. One end of each support bottom plate has a sensor plate that projects horizontally outwards. The position of the bottom of the work platform corresponding to each sensor plate There are distance sensors at each location; or/and

Each shelf has a support bottom plate for supporting the stack of materials and connected to the lifting device. Weighing sensors are respectively provided on the support bottom plates corresponding to the stacking positions of each material.

Preferably, the smart warehouse also includes a rotary line, the entrance of the rotary line is connected to the main conveying line behind the rearmost shelf, and the outlet of the rotary line is connected to the main conveying line in front of the buffer conveyor. The main line also includes a transition conveyor disposed at a position opposite to the entrance of the turn line. The transition conveyor is provided with a first sensor and a diverter corresponding to the entrance of the turn line. There is also a first sensor and a diverter at the entrance of the turn line. Second sensor.

Preferably, the smart warehouse also includes a branch line, the entrance of the branch line is connected to the main conveying line in front of the buffer conveyor, the outlet of the branch line is connected to the main part, and the main parts before and behind the branch line outlet are independent of each other. sub-system; a second reader is provided on the main conveyor line in front of the entrance of the branch line, a third reader is provided on the main conveyor line connected to the outlet of the branch line, and an industrial robot is provided at the entrance of the branch line. The outlet of the branch line is a second buffer conveyor and a second stopper is provided on the second buffer conveyor.

Beneficial effects of the present invention:

1. The present invention sets the main part of the main conveying line on one side of the shelf, and sets the transfer line on the other side of the shelf. The access device transfers materials between the main part, the shelf and the transfer line, and the access device transfers the materials on the main part. The materials are stored on the shelves or the materials on the shelves are taken to the main part and then sent out. The used goods on the shelves are also taken to the transfer line through the access device and then sent out. The materials are equipped with labels to indicate their uniqueness. In this way, through The same access device can complete the access of materials on the corresponding shelves, allowing the materials on the shelves to be taken out first before adding new ones, avoiding the mixing of old and new materials and affecting the inventory process, and improving the efficiency and accuracy of access.

2. There are multiple shelves in the present invention, and each shelf has at least one overlapping area. That is, each shelf can have only one stack of materials, or there can be multiple stacks of materials spaced side by side, and the multiple stacks of materials can all be the same. Materials can also be stacked and stacked materials belong to different materials. This makes it easier to comprehensively arrange and set the storage shelves and stacking areas of each material according to the usage of each material and other factors, and then store them before inventory. Input the database and save it to facilitate the pertinence and accuracy of subsequent storage and retrieval.

3. Each shelf of the present invention is arranged correspondingly under the inlet and outlet of the work platform. Materials are stored in the shelf or taken out from the shelf through the inlet and outlet, and a distance sensor is provided between the support bottom plate of the shelf and the bottom surface of the work platform, or/and Weighing sensors are respectively provided on each stacked area of the support base plate. The remaining amount of the corresponding material can be judged through the distance signal of the distance sensor or/and the weight signal of the weighing sensor. When it is less than the safe distance or safe quantity, a notification can be made. Managers carry out corresponding purchasing activities and can accurately know the types of materials to be purchased.

4. In the present invention, a stabilizing ring is protruding from the bottom surface of the working platform around the entrance and exit. By surrounding the upper material with the stabilizing ring, the overall stability of the material stack can be enhanced. At the same time, corresponding slots are provided on the supporting bottom plate to facilitate the use of shelves. When rising to a high position, the stabilizing ring can pass through the slot without blocking the material from rising. Furthermore, each stacking area is on the boss supporting the bottom plate. The boss can be accessed in and out, which ensures that the material at the bottom can also be raised. The working platform is taken out by the access device.

5. The present invention has a stopper movable in the main part corresponding to the overlapping area of each shelf. The stopper keeps the material in a relatively fixed position and can correct the posture of the material through the guide conveyor belt on the stopper and stop it. There is an induction switch on the conveyor. When the material is stopped at the stopper, it will interact with the induction switch, causing the main part or the corresponding independent conveyor to stop, and the stopper will automatically retract after stopping for the set time, thus facilitating Clamping of access devices. The sensor switch is set on the action surface of the stopper, which can prevent the sensor switch from erroneously responding to other materials on the path and causing abnormal shutdown.

6. The present invention has a buffer conveyor connected to the front end of the main part, and a parking device is provided on the buffer conveyor. The parking device stops a material to prevent the materials from being crowded with each other and affecting the normal operation of the inventory. On the shelves, A sensor is installed on the working platform between the main part and the main part. When the access device removes the material from the main part, the sensor can be sensed to cause the parking device to be lifted up and released.

7. The present invention further adds the setting of branch lines, through which the materials are sent into the main part in batches. This can reduce the waiting time and transportation path of the materials on the rear shelves, and further adds the setting of a rotary line, through which the materials will not be The materials accurately read by the reader are sent back to the loading line and processed on the rotary line to greatly increase the probability of being accurately read.

Description of the drawings

Figure 1 is a top view of the basic smart warehouse of the present invention.

Figure 2 is a top view of the upgraded smart warehouse with a rotary line according to the present invention.

Figure 3 is a top view of the upgraded smart warehouse with a rotary line and a branch line according to the present invention.

Figure 4 is a front view of the shelf and work platform of the present invention.

Figure 5 is a top view of the supporting base plate of the present invention.

Figure 6 is a schematic structural diagram of the stopper of the present invention.

Figure 7 is a schematic diagram of the installation structure of the parker and the fourth reader of the present invention.

Figure 8 is a schematic diagram of the installation structure of the second parker and the fifth reader of the present invention.

Figure 9 is a schematic structural diagram of the access device of the present invention.

Figure 10 is a schematic structural diagram of the clamping side of the access device of the present invention.

Explanation of reference symbols:

10. Shelf; 11. Support base plate; 12. Guide mechanism; 13. Shelf body; 14. Boss; 15. Synchronous shaft; 16. Synchronous rack; 17. Induction plate; 20. Main conveyor line; 21. Independent conveyor ; 22. Buffer conveyor; 23. Transition conveyor; 24. Diverter; 201. First reader; 202. Second reader; 203. Third reader; 204. Fourth reader; 205. Fifth reader; 206. First sensor; 207. Second sensor; 208. Sensor; 30. Transfer line; 40. Rotary line; 50. Branch line; 51. Second buffer conveyor; 52 , Second parking device; 53. Industrial robot; 60. Access device; 61. Access cylinder; 62. Mounting plate; 63. Guide rail; 64. Slide seat; 65. Clamping assembly; 66. Rolling screw ; 70. Lifting device; 80. Working platform; 81. Import and export; 82. Stability circle; 83. Distance sensor; 84. Identifier; 91. Parking device; 911. Parking cylinder; 912. Parking plate; 92 , stopper; 921, stop cylinder; 922, stop plate; 923, induction switch; 924, guide conveyor belt.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings:

Example 1:

As shown in Figures 1, 2, and 4-10, this embodiment provides an intelligent warehouse with automatic access function, including an industrial control host, a main conveying line 20, a transfer line 30, a rotary line 40, an access device 60 and multiple Shelves 10. The function of each shelf 10 is to store materials. Each material is provided with a label to store its detailed information (label such as QR code or barcode, the information includes product name, use period, supplier, serial number, etc.). The transportation The function of the main line 20 is to transport the materials to be stored to the vicinity of the corresponding shelf 10 or to export the materials to be taken out of the warehouse. The function of the transfer line 30 is to export the old goods on each shelf 10 to the warehouse before new products are put on the shelves so as not to affect the main conveying line. 20, the function of the rotary line 40 is to return the materials that have not been accurately read by the first reader 201 on the main conveying line 20 due to various reasons and re-send them into the main conveying line 20. The function of the retrieval device 60 is to deposit the materials to be stored from the main conveying line 20 into the designated shelf 10 or to move the materials to be retrieved to the main conveying line 20 or the transfer line 30. The function of the industrial control host is to control the operation of the above components. Industrial control hosts are available on the market, such as TD-IPC-710.

In this embodiment, each shelf 10 is driven up and down by its own lifting device 70 . The plurality of shelves 10 are staggered to each other. Preferably, the plurality of shelves 10 are arranged side by side and spaced apart. The same shelf above each shelf 10 A working platform 80 is provided at a horizontal height. The working platform 80 has an inlet and outlet 81 for loading and unloading materials. Specifically, the shelf 10 includes a shelf body 13 located below the working platform 80 and a guide mechanism arranged parallel to the lifting direction of the material. 12 and the support bottom plate 11 that is slidingly fitted on the guide mechanism 12. The materials are placed in layers on the support bottom plate 11, either in one stack or in two stacks side by side, or even more stacks. The side-by-side direction is consistent with the transportation of the materials on the main conveyor line 20. Same direction. The lifting device 70 is connected to the supporting bottom plate 11, and may be two lifting cylinders disposed on symmetrical sides of the bottom of the shelf body 13, or may be a combination of the lifting cylinders located on the working platform 80 and the supporting bottom plate 11. A chain-driven lifting mechanism is provided between the supporting base plates 11. The chain-driven lifting mechanism is a conventional structure and will not be described again here. The lifting device 70 can be used to lift the topmost material of the target stack to a point that protrudes relative to the top surface of the work platform 80 when picking up goods, thereby facilitating the operation of the access device 60 , or to raise the topmost material of the target stack to a level just high enough to support the stocking process. Place the materials dropped from the working platform 80 at the height. In the standby state, the uppermost material is close to the inlet and outlet 81 of the working platform 80. During the stocking process, the materials fall one by one, and during the picking process, they rise one by one. The inlet and outlet 81 may be an annular through-hole structure, or may be connected with spacers at corresponding positions in the space between the annular through-hole structure and adjacent stacking areas on the same shelf 10 .

Furthermore, in order to enhance the balance of the stacked materials, in this embodiment, stabilizing rings 82 can be provided at the bottom of the working platform 80 around each inlet and outlet 81. The height of the stabilizing rings 82 is preferably 2 to 4 material heights. In addition, the supporting bottom plate 11 is provided with a slot at a position corresponding to the stabilizing ring 82 for the stabilizing ring 82 to pass through. This ensures that the bottom material on the supporting bottom plate 11 can be raised onto the working platform 80 . In order to realize that the lowest layer of materials can be raised and projected onto the working platform 80 only through the lifting device 70, a boss 14 matching the inlet and outlet 81 is protruding from the center of the support bottom plate 11 in this embodiment. The height of the platform 14 is greater than or equal to the vertical depth of the corresponding inlet and outlet 81. The boss 14 can move up and down in the inlet and outlet 81, so that the material at the bottom layer can also be lifted up the working platform 80 and taken out.

Furthermore, in order to ensure that the support bottom plate 11 does not tilt during the lifting process and to ensure the level of the support bottom plate 11, this embodiment is also provided with a synchronization mechanism on each shelf 10. Specifically: the support bottom plate 11 of this embodiment is provided with a synchronization mechanism. The front and rear ends are recessed downward to form installation grooves. A synchronization shaft 15 is installed horizontally and rotatably in each installation groove through a bearing seat. Synchronization gears are fixedly mounted on both ends of each synchronization shaft 15 and each synchronization gear is close to the main body of the shelf. On one of the supporting columns of 13, the supporting columns of the shelf body 13 adjacent to the synchronizing gear are respectively arranged up and down with synchronizing racks 16 meshing with the synchronizing gear. In this way, the four corners of the supporting bottom plate 11 are maintained through the synchronizing mechanism. The same horizontal plane is raised and lowered synchronously without being partially tilted, thus preventing the stacked materials on the supporting bottom plate 11 from slipping due to tilt. Moreover, the height from the top of the synchronization gear to the top surface of the boss 14 is greater than the vertical depth of the corresponding inlet and outlet 81, thus preventing the synchronization mechanism from colliding with the bottom surface of the working platform 80 when the bottom layer of material projects upward onto the working platform 80.

In order to facilitate the timely replenishment of new goods to the corresponding shelves 10, one end of each support bottom plate 11 has a horizontally outwardly protruding sensor plate 17. The bottom of the working platform 80 is provided with an industrial control host at a position corresponding to each sensor plate 17. The electrically connected distance sensor 83, such as the GP2D12 infrared distance sensor, when the support base 11 is driven by the lifting device 70 to rise to a certain height, the distance sensor 83 detects that the distance between the support base 11 and the working platform 80 is less than the safe distance and sends supplies to the industrial control host. Signal, then the manager can learn that the materials on the corresponding shelf 10 need to be purchased. In addition, in order to avoid that the materials placed on the same shelf 10 are different and the specific materials that need to be replenished cannot be automatically known, this embodiment can also be provided with electrical connections to the industrial control host at the corresponding material stacking positions of the supporting bottom plate 11 Weighing sensor, since the weight of a single material is basically fixed and the materials stored in each position are set, the quantity of each stack of materials on each shelf 10 can be converted and obtained in real time through the weighing sensor. When the quantity is reduced to a safe After the quantity is displayed, the manager will be reminded to purchase the corresponding goods.

An identifier 84 is embedded in the entrance and exit 81 corresponding to the label on the material located in the entrance and exit 81. The identifier 84 can determine the corresponding overlapping material information and store the material information including the location in the industrial control system. On the host computer, the convenient access device 60 accurately stores the corresponding materials in the corresponding stack or removes the materials from the shelf 10 to avoid misoperation and ensure traceability of material use. Moreover, if multiple stacks of materials on the same shelf 10 are all the same material, in order to ensure that the height of each stack is basically the same or similar, if the shorter stack does not sense the presence of materials during inventory, the newly entered materials will be stacked there first. Among the shorter stacks, if only the taller stack has a sensing signal when picking up goods, the goods will be picked up from the taller stack first. If the stacks of materials on the same shelf 10 are different, they will be processed according to conventional procedures, that is, they will go down after receiving the goods and rise after being shipped.

In this embodiment, the main conveying line 20 includes a main body part, a loading line connected to the front end of the main body part, and a unloading line connected to the rear end of the main body part. The main part of the main conveying line 20 is horizontally disposed on the The plurality of shelves 10 are on the working platform 80 on one side, and their conveying surface is on the same level as the top surface of the working platform 80 . The input end of the loading line can be extended to the unloading point of the warehouse, so that after the goods arrive at the warehouse, they can be placed directly on the loading line one by one, eliminating the need to transport the goods and reducing labor intensity and cost. In addition, the The feeding line also increases the speed to increase the distance between two adjacent materials on the feeding line. The output end of the unloading line can be connected to a feeding device for transporting each material to the target use site. This feeding device is not within the scope of the smart warehouse in this embodiment and will not be described again here.

The loading line includes a buffer conveyor 22 located at its output end. The buffer conveyor 22 is also driven by its power device. A parking device 91 is provided at the rear end of the buffer conveyor 22. The parking device 91 Located in front of the first reader 201, the parking device 91 can be a pneumatic stopper located across the conveying surface of the buffer conveyor 22. The pneumatic stopper includes a fixed frame, a parking cylinder 911 and a parking stopper. Plate 912, the fixed frame is in the form of a gantry and its two ends are fixed on both sides of the frame of the buffer conveyor 22, the parking cylinder 911 is installed on the horizontal plate of the fixed frame, the parking plate 912 is fixed on It is driven by the parking cylinder 911 to move up and down between the conveying surface and the horizontal plate.

The main part may be an entire conveyor line. However, it is more preferable that the main body part includes independent conveyors 21 respectively provided corresponding to each shelf 10, and each independent conveyor 21 is driven by its own driving motor. At the same time, a first reader 201 for reading tags on materials is installed in the front section of the frontmost independent conveyor 21. The first reader 201 is connected to the industrial control host. Through the first reader 201 Send detailed information of each material to the industrial control host, and then the industrial control host sends drive instructions to the corresponding relevant equipment based on the obtained material information.

The independent conveyor 21 is provided with a stopper 92 at a position corresponding to the rear end of each stack in each shelf 10. When the material moves along the main conveying line 20 and is read by the first reader 201, the industrial control host The drive stopper 92 operates to keep the materials to be stored in a relatively fixed position to facilitate accurate operation of the access device 60 . Preferably, the stopper 92 is installed on the side of the independent conveyor 21 away from the shelf 10. The stopper 92 includes a stop cylinder 921 fixed on one side of the independent conveyor 21 through a transverse boss and a stop cylinder 921. The stop plate 922 is driven to protrude perpendicularly to the conveying direction of the independent conveyor 21 to block or inwardly scale the materials. The action surface of the stop plate 922 is parallel to the rear edge of the material in the stacked state. The stop plate 922 has The action surface is provided with an induction switch 923 for sensing material transport to the position of the stopper 92. The induction switch 923 is electrically connected to the industrial control host. When the industrial control host receives the induction signal sent by the induction switch 923, it controls the stopper. The independent conveyor 21 where 92 is located is stopped, the stopper 92 is extended and stopped, and the material is allowed to be stored in the access device 60 corresponding to the shelf 10. At the same time, the working time of the stopper 92 is set to extend and stop. When the working time After reaching it, it will automatically retract and be in the release state. The working platform 80 between each independent conveyor 21 and the corresponding shelf 10 is provided with a sensor 208 for detecting the transfer of materials by the access device 60 to the shelf 10. When the material is taken away, the sensor 208 outputs a sensing signal and then the industrial control host A start signal is sent to the drive motor of the corresponding independent conveyor 21, the independent conveyor 21 resumes normal operation, and the parking device 91 is released upward.

Furthermore, since the posture of the material on the main conveying line 20 is not necessarily in a positive posture, this embodiment also has a guiding conveyor belt 924 embedded in the action surface of the stop plate 922. The conveying of the guiding conveyor belt 924 is The surface is parallel to the rear edge of the material stacked state and runs along the expansion and contraction direction of the stop plate 922. It is set so that the guide conveyor belt 924 is started by the stop signal output of the sensor switch 923 and runs at a constant low speed for a set time (such as 2 seconds). ~3 seconds), thus correcting the posture of the material by guiding the conveyor belt 924. Preferably, the conveying surface of the guide conveyor belt 924 is flush with the action surface of the stop plate 922 .

In addition, it should be noted that the reason why it is better to configure the main part to include several independent conveyors 21 is because this allows for a more flexible design and reduces the waiting time for inventory. For example, this embodiment can also provide a fourth reader 204 for reading tags on blocked materials at the position of the parking device 91. The fourth reader 204 is connected to the industrial control host. If The material information sent by the fourth reader 204 to the industrial control host is not the same product as the previous material and its corresponding shelf 10 is in front of the shelf 10 corresponding to the previous material, then the industrial control host controls the parking device 91 to lift and release , and when the released material passes through the first reader 201, its corresponding stopper 92 also starts to act. The released material continues to be transported to its corresponding stopper 92 and interacts with the sensor switch 923. The independent stopper 92 is located The conveyor 21 stops, the stopper 91 is extended and stopped, and the material is allowed to be stored in the access device 60 corresponding to the shelf 10. At the same time, the working time of the stopper 92 is set, and when the working time is reached, Automatically retracts and is in release state. If there are multiple materials on the main part undergoing inventory work, and the material information sent by the fourth reader 204 to the industrial control host belongs to the rear of the shelf 10 corresponding to the last material on the line, it must be received by the industrial control host. The sensors 208 corresponding to all materials on the line send feedback signals before they are released.

The entrance of the rotary line 40 is connected to the main conveying line 20 behind the rearmost shelf 10 , and the outlet of the rotary line 40 is connected to the main conveying line 20 in front of the buffer conveyor 22 . There is a label inspection station and a labeling station on the machine. Through the inspection station and labeling station, it is ensured that the materials returned to the feeding line have accurate labels. The main conveying line 20 also includes a transition conveyor 23 disposed at a position opposite to the entrance of the rotary line 40. The transition conveyor 23 has an input end connected to the main conveying line 20 in front and a conveying end in the rear. A first output side connected to the main line 20 and a second output side connected to the entrance of the rotary line 40. The transition conveyor 23 is provided with a first sensor connected to the industrial control host at the corresponding entrance to the rotary line 40. 206 and diverter 24, and the first sensor 206 only plays a role in the inventory process. When the material reaches the position of the first sensor 206, the first sensor 206 responds by sending a steering signal to the industrial control host, and the industrial control host drives The transition conveyor 23 stops and moves the material to the turning line 40 through the diverter 24. After reaching the position, the diverter 24 resets so as not to block the conveying path of the main conveying line 20. The entrance of the rotary line 40 is also provided with a second sensor 207 connected to the industrial control host. When the material to be rotated passes the second sensor 207, the industrial control host controls the transition conveyor 23 to re-operate. The first sensor 206 and the second sensor 207 can both use photoelectric sensors, and the diverter 24 can use a pneumatic push rod.

In this embodiment, the transfer line 30 is horizontally disposed on the work platform 80 on the other side of the plurality of shelves 10 and its conveying surface is on the same level as the top surface of the work platform 80 . In order to avoid confusion in accessing the same shelf 10, it is preferably set so that before all the used goods on the shelf 10 are transferred to the transfer line 30, all the corresponding materials on the shelf 10 will not be put into the loading line, or enter the main conveying line 20 All materials corresponding to the shelf 10 are not blocked but are directly sent back from the rotary line 40 to the loading line. The way to determine whether there are old goods on the shelf 10 is until the corresponding identifier 84 in the entrance and exit 81 corresponding to the shelf 10 has no induction signal output. Specifically, all the stacked materials on the shelf 10 are the same material. Then it is required that all the identifiers 84 have no sensing signals, and if there are multiple stacks of non-identical materials on the shelf 10, it is required that all the identifiers 84 corresponding to the same type of products as the materials to be stored have no sensing signals.

In this embodiment, the access device 60 moves between the main part of the main conveying line 20 , the shelves 10 and the transfer line 30 , and its movement direction is perpendicular to the conveying direction of the main part of the main conveying line 20 . Preferably, the access device 60 includes an access cylinder 61 , a guide rail 63 , a mounting plate 62 , a slide 64 and a clamping assembly 65 . The access cylinder 61 is installed on the transfer line 30 away from the multiplexers. On the working platform 80 on one side of the shelf 10, the guide rail 63 is extended and arranged on the working platform 80 perpendicular to the main body part of the conveying main line 20 and staggered with each inlet and outlet 81. The mounting plate 62 is installed vertically on the existing work platform 80. Take the end of the piston rod of the cylinder 61 and have a mounting gap at its bottom end. The width of the mounting plate 62 is greater than the width of the transfer line 30. The length of the mounting gap is equivalent to the front and rear length of the entire inlet and outlet 81 above the shelf 10. A rolling screw 66 driven by a servo motor is horizontally arranged on the top wall through a bearing seat. The clamping assembly 65 is threadedly engaged on the rolling screw 66 through a slide seat 64. The clamping assembly 65 has two For the movable clamping plates extending in parallel and facing each other towards the main conveying line 20 , it is preferred that the clamping assembly 65 adopts a pneumatic clamping jaw or an electric clamping jaw.

The inventory working process of this embodiment is:

Step A1: Plan and set the storage shelf 10 of each material and the overlapping area on the shelf 10 according to factors such as the usage of each material, and enter the detailed information of each material into the label and the database of the industrial control host;

Step A2: Start the system and put the stopper 91 on the buffer conveyor 22 in the lifting and releasing state, then put the materials into the feeding line one by one and create a gap on the feeding line;

Step A3: After the material P passes through the parking device 91 in the lifting and releasing state, the first reader 201 reads and determines the information of the material P. The industrial control host matches and controls the stop corresponding to the material P based on the read information. The device 92 causes the corresponding stopper 92 to operate and protrude on the conveying path of the independent conveyor 21, and at the same time, the shelf 10 corresponding to the material P is driven up to a predetermined height by the lifting device 70;

Step A4: The material P continues to be transported from the main conveyor line 20 to the corresponding stopper 92 position and stopped by the stopper 92. The sensor switch 923 responds. When the corresponding independent conveyor 21 stops, the stopper 91 moves in the down-extended position. Stop state;

Step A5: The stopper 92 moves in the reverse direction and is in the release state. Further, before the stopper 92 moves in the reverse direction, the posture of the material P can be corrected through the guide conveyor belt 924 on it;

Step A6: The operation of the servo motor on the access device 60 drives the clamping assembly 65 to move laterally to a position corresponding to the overlapping area of the material P to be stored on the shelf 10, and then the access cylinder 61 operates to move the clamping assembly 65 toward independence. The conveyor 21 moves and clamps the material P, and then returns to the entrance and exit 81 along the original route. The clamping assembly 65 is released to allow the material P to fall on the shelf 10. After receiving the material P, the shelf 10 drops until the material is lower than the working platform. 80, and interacts with the sensor 208 on the way back to cause the corresponding independent conveyor 21 to re-operate and the parking device 91 to lift up and release;

Step A7: Repeat the above steps A3-A6 for the next material inventory process.

In the above step A3, if the first reader 201 fails to read the label on the material, the stopper 92 on each independent conveyor 21 will not operate, and the material will be transported backward until it reaches the transition conveyor 23 and is connected with the transition conveyor 23. The first sensor 206 interacts to generate a steering signal, and the industrial control host drives the diverter 24 to send the material to be rotated into the rotary line 40 and give it a valid label, and then sends it along the rotary line 40 to the main conveying line 20 . In addition, the predetermined height described in step A3 is controlled by the identifier 84 in the entrance and exit 81 interacting with the label on the uppermost existing material to send a sensing signal.

The tags on the blocked materials are read through the fourth reader 204. If the material information sent by the fourth reader 204 to the industrial control host does not belong to the same product as the previous material and its corresponding shelf 10 corresponds to the previous material. In front of the shelf 10, the stopper 91 is lifted up and released. The next material does not need to wait for the previous material to complete steps A3-A6, and the inventory process of the released material repeats the above-mentioned steps A3-A6.

In the above step A6, the identifier 84 in each entrance and exit 81 is used to determine whether there are still the same kind of materials in the corresponding area on the corresponding shelf 10. If there are still old goods on the shelf 10 corresponding to the material (that is, the identifier 84 and the material The tags on the machine interact with each other to generate a response signal and send it to the industrial control host), then the access device 60 needs to perform the following clearing operation before picking up the materials on the main conveyor line 20, specifically step A6.1: the lifting device 70 drives the supporting bottom plate 11 rises to the top of the corresponding stack of materials Q and projects onto the working platform 80; Step A6.2: The servo motor on the access device 60 operates to drive the clamping assembly 65 to move laterally to the overlapping area with the material Q on the shelf 10 Corresponding point; Step A6.3: The access cylinder 61 moves the clamping assembly 65 towards the shelf 10 and clamps the material Q to the transfer line 30. After it is in place, release it so that the material Q falls on the transfer line 30 and moves backward. Conveying; Step A6.4: If there are still old goods in the corresponding area of the corresponding shelf 10, perform the above steps A6.1-A6.3 again until there are no old goods.

In addition, if there are multiple stacks on the same shelf 10 and at least two stacks are of the same material, the height of each stack can be determined through the identifier 84 in each entrance and exit 81, because a taller stack of materials will be replaced by a shorter stack of materials. It will be recognized by the corresponding identifier 84. At the same time, the system is set to order inventory according to certain rules for each material stack that has not been recognized by the identifier 84 or for each material stack that has been recognized by the identifier 84. For example, From front to back (parallel to the conveying direction of the main conveying line 20), and the higher stack of materials has the lowest inventory level, at the rear.

The process of picking up goods in this embodiment is:

Step B1: Plan and set the storage shelf 10 of each material and the overlapping area on the shelf 10 according to factors such as the usage of each material, and enter the detailed information of each material into the label and the database of the industrial control host;

Step B2: The industrial control host retrieves the database according to the information of the materials to be picked up and sends control instructions to the lifting device 70 corresponding to the shelf 10, and the supporting bottom plate 11 is raised to the convex working platform 80 corresponding to the uppermost material M of the stack through the lifting device 70;

Step B3: The operation of the servo motor on the access device 60 drives the clamping assembly 65 to move laterally to a position corresponding to the material M to be picked up, and then the access cylinder 61 moves the clamping assembly 65 toward the shelf 10 and clamps the material M. , and then continue to move towards the main conveying line 20 with the material M. After reaching the position, the clamping assembly 65 is released so that the material M falls on the main conveying line 20 and is transported backward. The access cylinder 61 retracts and waits for the next picking operation;

Step B4: The lifting devices 70 and the access devices 60 corresponding to different shelves 10 are performed separately without interfering with each other. For the next material removal process on the same shelf 10, the above steps B2-B3 are repeated.

In the above step B2, if there are multiple stacks of the same material on the same shelf 10, the height of each stack is determined through the identifier 84 in each inlet and outlet 81, because a taller stack of materials will be higher than a shorter stack of materials. Identified by the corresponding identifier 84, and at the same time, the system is set to pick up each stack of materials in accordance with certain rules in order, such as from front to back (according to the conveying direction of the main conveying line 20), And the higher material stack has the highest picking level, first.

Example 2:

This embodiment provides a smart warehouse with automatic access function. This embodiment further adds a branch line 50 on the basis of the above-mentioned Embodiment 2. The branch line 50 is provided for the purpose of improving the number of shelves 10. Can reduce waiting time when materials are in stock.

As a preferred way, as shown in FIG. 3 , there is one branch line 50 , and the entrance of the branch line 50 is connected to the main conveying line 20 in front of the buffer conveyor 22 and the entrance of the branch line 50 is on the turn line 40 Behind the exit, the exit of the branch line 50 is connected to one of the independent conveyors 21 in the middle, and the exit of the branch line 50 is in front of the entrance of the turn line 40. The main part in front of the exit of the branch line 50 and the main body behind the exit of the branch line 50 The parts are mutually independent conveying subsystems. The outlet of the branch line 50 is a second buffer conveyor 51 and a second stopper 52 is provided on the second buffer conveyor 51. The entrance of the branch line 50 is provided with The industrial robot 53 is connected to the industrial control host. The main conveying line 20 in front of the entrance of the branch line 50 is provided with a second reader 202. The second reader 202 obtains the material information transported there and sends it to the industrial control host. , the industrial control host retrieves the database and analyzes the storage shelves 10 of the materials. If the shelf 10 is behind the exit of the branch line 50, it will be sent to the branch line 50 through the industrial robot 53. If it is the shelf 10 in front of the exit of the branch line 50, it will be sent along the main conveying line 20. Keep going. When the materials are transported along the branch line 50 to the exit of the branch line 50, they are sent one by one to the adjacent independent conveyor 21 through the second stopper 52, and the front end of the independent conveyor 21 is provided with a third reading device. 203 and the industrial control host only requires the material on the branch line 50 to respond to the signal sent by the third reader 203 (that is to say, the premise for the industrial control host to respond to the signal of the third reader 203 is that the The corresponding shelf 10 of the material is at the rear and the industrial control host has received the signal sent by the second reader 202). The inventory process of the material on the branch line 50 is the same as that described in Embodiment 1. The second parking device 52 The structure is the same as that of the parker 91 but the size is different.

As another preferred way, there are two branch lines 50 , dividing the main body of the entire conveying main line 20 into three parts: front, middle and rear. The entrances of the two branch lines 50 are connected to the conveyor in front of the buffer conveyor 22 On the main line 20 and behind the exit of the rotary line 40, the outlet of one branch line 50 is connected to an independent conveyor 21 at the junction of the front and middle parts and in front of the entrance of the rotary line 40, while the outlet of the other branch line 50 The outlet is connected to one of the independent conveyors 21 at the junction of the middle and rear parts and is in front of the entrance of the rotary line 40. The main parts at the front and rear of the outlet of each branch line 50 are mutually independent conveying subsystems. Similarly, a second buffer conveyor 51 is provided at the outlet of each branch line 50 and a second parking device 52 is provided on the second buffer conveyor 51. An industrial robot connected to an industrial control host is provided at the entrance of each branch line 50. 53. A second reader 202 is provided on the main conveyor line 20 in front of the entrance of the branch line 50. A third reader 203 is provided at the front end of the independent conveyor 21 and the industrial control host responds to the signal sent by the third reader 203. Only the materials on the corresponding branch line 50 are required to respond. Another third reader 203 is also provided at the front end of the independent conveyor 21 and the industrial control host only responds to the signal sent by the third reader 203 It is required that only the materials on the corresponding branch line 50 respond. The inventory process of the materials on each branch line 50 is the same as that described in Embodiment 1.

In the same way, the above two preferred methods for the branch line 50 can also be provided with a fifth reader 205 on the second dock 52 respectively. The fifth reader 205 is connected to the industrial control host. If the fifth reader 205 is connected to the industrial control host, if The material information sent by the fifth reader 205 to the industrial control host is not the same product as the previous material and its corresponding shelf 10 is in front of the shelf 10 corresponding to the previous material, then the industrial control host controls the second parking device 52 to lift and release , and when the released material passes through the third reader 203, its corresponding stopper 92 also starts to act. The released material continues to be transported to its corresponding stopper 92 and interacts with the sensor switch 923. The independent stopper 92 is located The conveyor 21 stops, the second stopper 52 extends down to stop, and allows the material to be stored in the access device 60 corresponding to the shelf 10. At the same time, the working time of the stopper 92 is set. When the working time reaches Then it will automatically retract and be in the release state. If there are multiple materials in the corresponding part of the main part for inventory work, and the material information sent by the fifth reader 205 to the industrial control host belongs to the rear of the shelf 10 corresponding to the last material on the line, it must be in the industrial control The host receives feedback signals from the sensors 208 corresponding to all materials on the line before releasing them.

The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above. Those skilled in the industry should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and specifications is only to illustrate the present invention. principle, without departing from the creative spirit and scope of the present invention, there will be various changes and improvements in the present invention. These changes and improvements all fall within the scope of the claimed invention. The claimed scope of the present invention is determined by the appended claims and their equivalents.

Claims (10)

1. Have intelligent warehouse of automatic access function, its characterized in that, this intelligent warehouse includes:

the shelves are staggered with each other and driven by the lifting devices to lift up and down, and each shelf is provided with at least one stacking area;

the working platform is horizontally arranged above the plurality of shelves, the corresponding parts of the working platform and each shelf are respectively provided with an inlet and an outlet, and identifiers for acting with the labels on the materials positioned in the inlet and the outlet are respectively embedded in each inlet and outlet;

the conveying main line comprises a main body part horizontally arranged on a working platform at one side of the plurality of shelves and a buffer conveyor positioned in front of the main body part, wherein a parking device is arranged at the rear end of the buffer conveyor, a stopper and a sensing switch are respectively arranged at positions of the main body part corresponding to the rear ends of the stacking areas in the shelves, a first reader is arranged at the front section of the main body part, and a sensor is arranged on the working platform between each shelf and the conveying main line;

The transfer line is horizontally arranged on the working platform at the other side of the plurality of shelves; and

and the storage device is used for transferring materials among the conveying main line, the goods shelves and the transfer line.

2. The intelligent warehouse with the automatic access function according to claim 1, wherein the main body part of the conveying main line comprises independent conveyors which are respectively arranged corresponding to all the shelves, the first reader is arranged at the front section of the foremost independent conveyor, the stoppers are respectively arranged at positions of the independent conveyors corresponding to the rear ends of all the stacking areas in all the shelves, each stopper is respectively arranged at one side of the independent conveyor, which is far away from the shelf, and the inductive switch is arranged on the material interaction surface of the stopper.

3. The intelligent warehouse with automatic access function according to claim 2, wherein the acting surface of the stopper is further provided with a guiding and conveying belt.

4. The intelligent warehouse with automatic access function of claim 2, wherein a fourth reader for reading tags on blocked materials is provided at the parking location.

5. The intelligent warehouse with the automatic access function according to claim 1, wherein the access device comprises an access cylinder, a guide rail, a mounting plate, a sliding seat and a clamping assembly, the access cylinder is mounted on a working platform on one side, far away from the racks, of the transfer line, the guide rail is perpendicular to a main body part of the conveying main line, extends on the working platform and is staggered with each inlet and outlet, the mounting plate is vertically mounted at the tail end of a piston rod of the access cylinder, the bottom end of the mounting plate is provided with a mounting notch, the width of the mounting plate is larger than the width of the transfer line, a rolling screw driven by a servo motor is horizontally arranged on the top wall of the mounting notch through a bearing seat, the clamping assembly is in threaded fit on the rolling screw through the sliding seat, and the clamping assembly is provided with two movable clamping plates which extend in parallel towards the conveying main line respectively and are opposite.

6. The intelligent warehouse with the automatic access function according to claim 1, wherein each goods shelf is respectively provided with a supporting bottom plate which is used for supporting the material stack and is connected with the lifting device, a boss matched with the inlet and the outlet is convexly arranged at the center of the supporting bottom plate, a dimension stabilizing ring is respectively arranged at the bottom of the working platform around the periphery of each inlet and the outlet, and a through groove for the dimension stabilizing ring to pass through is arranged at the position of the supporting bottom plate corresponding to the dimension stabilizing ring.

7. The intelligent warehouse with the automatic storage and retrieval function according to claim 1, wherein each goods shelf is respectively provided with a supporting upright post and a supporting bottom plate which is used for supporting the material stack and is connected with the lifting device, a boss matched with the inlet and the outlet is convexly arranged at the center of the supporting bottom plate, and a synchronizing mechanism is matched between the supporting bottom plate and the supporting upright post.

8. The intelligent warehouse with automatic access function according to claim 1, wherein,

each goods shelf is respectively provided with a supporting bottom plate used for supporting the material stack and connected with the lifting device, one end of each supporting bottom plate is respectively provided with a sensing plate which horizontally and outwards extends outwards, and the positions, corresponding to the sensing plates, of the bottom of the working platform are respectively provided with a distance sensor; or/and (or)

Each goods shelf is respectively provided with a supporting bottom plate used for supporting the material stack and connected with the lifting device, and weighing sensors are respectively arranged at the corresponding material stack positions of the supporting bottom plate.

9. The intelligent warehouse with the automatic access function according to claim 1, further comprising a turning line, wherein an inlet of the turning line is abutted to a conveying main line behind a rearmost shelf, an outlet of the turning line is abutted to the conveying main line in front of the buffer conveyor, the conveying main line further comprises a transition conveyor abutted to a position where the transition conveyor is abutted to the inlet of the turning line, a first sensor and a diverter are arranged at positions where the transition conveyor corresponds to the inlet of the turning line, and a second sensor is further arranged at the inlet of the turning line.

10. The intelligent warehouse with automatic access function according to any one of claims 1 to 9, further comprising a branch line, wherein an inlet of the branch line is abutted to a conveying main line in front of the buffer conveyor, an outlet of the branch line is abutted to a main body part, and the main body parts in front and behind the outlet of the branch line are independent conveying sub-systems; the conveying main line in front of the branch line inlet is provided with a second reader, the conveying main line butted with the branch line outlet is provided with a third reader, the inlet of the branch line is provided with an industrial robot, the outlet of the branch line is a second buffer conveyor, and the second buffer conveyor is provided with a second parking device.