A device for printing and fast inventory based on RFID electronic tags

Abstract

The present invention provides a device for printing and fast inventorying based on RFID electronic tags, and relates to the technical field of material management. The device for printing and fast inventorying based on RFID electronic tags includes a main control computer, a wireless communication module, an inventorying structure, a printing structure, and a shelf. In the present invention, a plurality of shelves are connected by rails, and the inventorying structure can be driven by a translation driving structure to sequentially inventory a plurality of shelves along the rails, and is not constrained by problems such as small shelf spacing and uneven ground. The overall structure is simple and the operation requirements are not high. The lifting slide can be driven to rise and fall by the lifting driving structure to achieve the purpose of adjustable inventory identification range. A printing box with a label printer is also provided on the lifting slide. The damaged labels and newly added materials identified by the visual sensor can be controlled by the main control computer to print RFID electronic labels on site, which is convenient for the staff to replace and post after completion.

Description

Technical Field

[0001] The present invention relates to the technical field of material management, and specifically relates to a device for RFID electronic tag printing and rapid inventory taking. Background Art

[0002] In terms of the application of inventory taking technology, a method that is relatively mature in technology and controllable in cost is generally the identification method based on RFID tags. First, RFID tags are pasted on the surface of materials, and the material information is bound to the RFID chip. Then, through various movable machines or devices (such as AGV cars, drones, etc.) equipped with RFID reading devices, the RFID chips bound to the surfaces of materials in each warehouse are sensed by traversing all warehouses, and the quantity of on-site physical objects is collected. Further, it is compared with the ledger information in the background, so as to automatically obtain the inventory taking result.

[0003] For example, a vision-based commodity inventory taking device, its system and inventory taking method proposed in the existing public technology. The main body of this inventory taking device is a vertical structure composed of a mobile base and an inverted "U"-shaped support part, including a depth vision camera, a high-definition camera, an ultrasonic radar, a universal mobile base, and a lidar. This commodity inventory taking device has a delicate structure and can freely shuttle through the aisles between shops and warehouses, quickly and accurately identify the shelves, numbers, and goods, and quickly take inventory of these data; the system includes: the internal system of the inventory taking device and the server system that is wirelessly interconnected with the internal system of the inventory taking device through a data transceiver module. The obvious defects of this structure are, first, that it has high requirements for ground traffic conditions, and second, its recognition range is a fixed range and does not have an adjustable function. As is well known, affected by the site area, the distance between each shelf cannot be set too large. The recognition method that cannot adjust the recognition range in this technology will inevitably have a large blind area;

[0004] There is also a public technology that proposes a method and system for rapid inventory taking of three-dimensional shelf materials based on drone inventory taking. Its method is to construct a space coordinate system for the three-dimensional shelf, obtain the hovering coordinate points of the drone during inventory taking in each storage location, determine the material inventory taking task according to the material inventory taking priority, match the material inventory taking task and the hovering coordinate points of the drone during inventory taking in each storage location, obtain the set of hovering coordinate points that the drone needs to traverse corresponding to the material inventory taking task, construct an objective function for optimizing the drone path with the shortest total flight path of the drone inventory taking, determine the constraint conditions, solve the objective function for optimizing the drone path, and obtain the optimal path of the drone. The cost of the drone solution is very high and the technical requirements for the inventory taking personnel are relatively high.

[0005] To sum up, it is necessary to develop a device based on RFID electronic tag printing and rapid inventory counting for material management, in order to solve the problems of high access conditions, unadjustable recognition range, high cost and high technical requirements of personnel in the existing technology based on RFID electronic tag printing and rapid inventory counting devices. Summary of the invention

[0006] In view of the shortcomings of the prior art, the present invention provides a device based on RFID electronic tag printing and rapid inventory counting to solve the problems of high requirements on access conditions, unadjustable recognition range, high cost and high technical requirements on personnel in the prior art based on RFID electronic tag printing and rapid inventory counting devices.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a device based on RFID electronic tag printing and rapid inventory counting, including a main control computer, a wireless communication module, an inventory counting structure, a printing structure and a shelf, the shelf having a front and rear double-sided storage area, a fixed seat fixedly connected to the top of the shelf, a guide rail fixedly connected to the outer wall of the fixed seat, the guide rail surrounds the shape of the shelf in a top view, a transition arc angle is set at the corner of the guide rail, a T-slot is set at the outer wall of the guide rail and in the center, and the outer wall of the guide rail and located at the T-slot A first flat groove is provided on both the upper and lower sides, and the inner wall of the T-shaped groove is provided with multiple groups of support plates distributed left and right, and a front wall of a middle group of the multiple groups of support plates is fixedly connected to a translation slide, and a rectangular frame is fixedly connected to the front wall of the translation slide near the lower end, and the lower end of the rectangular frame extends toward the lower side of the translation slide and the horizontal height of the lower end of the rectangular frame is close to the bottom of the shelf, and a rectangular opening that passes through the front and back is provided on the inner wall of the rectangular frame, and a lifting slide is slidably connected to the inner wall of the rectangular opening, and the inventory structure and the printing structure are both arranged on the front wall of the lifting slide.

[0008] Preferably, a first rolling structure is provided in the multiple groups of support plates and T-slots, a multiple groups of fixed columns are fixedly connected to the front wall of a middle group of support plates, the translation slide is fixedly connected to the end of the multiple groups of fixed columns away from the support plate, a second rolling structure is provided between the translation slide and the first flat groove, a translation driving structure for driving the translation slide to move along the guide rail shape is provided between the translation slide and the guide rail, a lifting driving structure for driving the lifting slide to rise and fall is provided between the lifting slide and the rectangular frame, a second opening which runs through the lifting slide from front to back is provided on the inner wall of the lifting slide, the inventory structure is provided on the inner side wall of the second opening, and the printing structure is provided on the front wall of the lifting slide and is located below the inventory structure.

[0009] Preferably, two adjacent left and right groups of the multiple groups of support plates are rotatably connected via multiple groups of connecting blocks, and the connecting blocks between two adjacent groups of support plates in the multiple groups of connecting blocks are distributed in sequence with equal intervals up and down.

[0010] Preferably, the first rolling structure includes multiple groups of first rollers, and the multiple groups of first rollers are rotatably connected to the upper and lower ends of the multiple groups of support plates respectively, and the outer walls of the multiple groups of first rollers are rollingly connected to the inner side walls of the T-slots.

[0011] Preferably, the second rolling structure includes two groups of connecting shafts and second rollers. The two groups of connecting shafts are fixedly connected to the rear wall of the translation slide and are respectively opposite to the front and rear of the two groups of first flat grooves. The two groups of second rollers are respectively rotatably connected to the ends of the two groups of connecting shafts away from the translation slide, and the circumferential outer walls of the two groups of second rollers are respectively rollingly connected to the inner side walls of a group of first flat grooves.

[0012] Preferably, the translation drive structure includes a first motor, a first tooth plate and a first gear, the first motor is fixedly connected to the front wall of the translation slide, the first tooth plate is fixedly connected to the outer wall of the guide rail and is distributed along the length direction of the guide rail, the inner wall of the translation slide and above the first motor is provided with a first opening that passes through from front to back, the horizontal height of the first opening is adapted to the horizontal height of the first tooth plate, the first gear is fixedly connected to the end of the shaft extending from the first motor, the outer wall of the first gear passes through the first opening and meshes with the first tooth plate.

[0013] Preferably, the lifting drive structure includes a second motor, two groups of second tooth plates and two groups of second gears, the two groups of second tooth plates are fixedly connected to the front wall of the rectangular frame and are respectively located on the left and right sides of the rectangular opening, the length directions of the two groups of second tooth plates are parallel to the length direction of the rectangular frame, the second motor is fixedly connected to the front wall of the lifting slide and is located near the upper end of the lifting slide, the second motor is a double-headed motor, the two groups of second gears are respectively fixedly connected to the ends of the two groups of output shafts of the second motor, and the outer walls of the two groups of second gears are respectively meshed with a group of second tooth plates.

[0014] Preferably, the inventory structure includes a visual sensor, a wide-mouth scanning gun and two groups of fill lights. The inner wall of the lifting slide is provided with a second opening which passes through from front to back. The inner lower wall of the second opening is fixedly connected with a support plate extending toward the front side of the lifting slide. The visual sensor is detachably connected to the upper wall of the support plate by screws, and the wide-mouth scanning gun is detachably connected to the inner upper wall of the second opening by screws. The two groups of fill lights are respectively rotatably connected to the inner left wall and the inner right wall of the second opening by a group of brackets.

[0015] Preferably, the printing structure includes a printing box and a label printer, the printing box is fixedly connected to the front wall of the lifting slide and close to the lower wall of the lifting slide, the label printer is fixedly connected to the inner rear wall of the printing box and close to the upper wall of the printing box, and the front wall of the printing box is rotatably connected to the front door.

[0016] Preferably, both left and rear side walls of the lifting slide are provided with sliders, and both inner left wall and inner right wall of the rectangular opening of the rectangular frame are provided with second flat grooves, and the two groups of sliders are slidably connected to the inner side walls of the two groups of second flat grooves respectively.

[0017] The present invention provides a device for printing and quickly counting electronic tags based on RFID. It has the following beneficial effects:

[0018] 1. Compared with the prior art, the RFID electronic tag printing and rapid inventory device has a track above the shelf distributed along the top view of the shelf. Multiple shelves are connected by the track. The inventory structure can be driven by the translation drive structure to carry out inventory on multiple shelves in sequence along the track. It is not constrained by problems such as small shelf spacing and uneven ground. It can effectively realize rapid inventory operations, and the overall structure is simple and the operation requirements are not high.

[0019] 2. Compared with the prior art, the RFID electronic tag printing and rapid inventory counting device has a lifting slide installed with an inventory counting structure that can be driven up and down by a lifting drive structure, thereby achieving the purpose of adjusting the inventory counting identification range and effectively avoiding identification blind spots.

[0020] 3. Compared with the existing technology, the RFID electronic label printing and rapid inventory device is also equipped with a printing box with a label printer on the lifting slide. The damaged labels and new substances identified by the visual sensor can be controlled by the main control computer to print RFID electronic labels on site, which is convenient for the staff to replace and post them after completion. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the present invention;

[0022] Figure 2 For the present invention Figure 1 A partial enlarged view of the middle A;

[0023] Figure 3 For the present invention Figure 1 A partial enlarged view of point B in the middle;

[0024] Figure 4 For the present invention Figure 1 A partial enlarged view of point C in the middle;

[0025] Figure 5 It is a partial side cross-sectional view of the connecting structure of the guide rail, the translation slide, and the rectangular frame of the present invention;

[0026] Figure 6 For the present invention Figure 5 A partial enlarged view of point D in the middle;

[0027] Figure 7 For the present invention Figure 5 A partial enlarged view of point E in the middle;

[0028] Figure 8 It is a partial cross-sectional view of the connection structure of multiple groups of support plates of the present invention;

[0029] Fig. 9 It is a partial cross-sectional view of the internal structure of the printing box of the present invention;

[0030] Fig.10 It is a top view schematic diagram of the lifting slide and the slider connection structure of the present invention;

[0031] Fig.11 This is a schematic diagram of the front structure of the translation slide of the present invention;

[0032] Fig.12 It is a schematic diagram of the front structure of the lifting slide of the present invention.

[0033] Among them, 1. shelf; 2. fixed seat; 3. guide rail; 301. T-slot; 302. first flat slot; 4. translation slide; 401. first opening; 5. first tooth plate; 6. first motor; 7. first gear; 8. rectangular frame; 801. rectangular opening; 802. second flat slot; 9. second tooth plate; 10. lifting slide; 1001. slider; 1002. second opening; 11. second motor; 12. second gear; 13. support plate; 14. visual sensor; 15. wide-mouth scanner; 16. fill light; 17. printing box; 18. front door; 19. connecting shaft; 20. second roller; 21. support plate; 22. connecting block; 23. fixing column; 24. first roller; 25. label printer. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Example:

[0036] like Figures 1 to 12As shown, an embodiment of the present invention provides a device for printing and rapid inventory based on RFID electronic tags, including a main control computer, a wireless communication module, an inventory structure, a printing structure and a shelf 1. The shelf 1 has a front and rear double-sided storage area. A fixing seat 2 is fixedly connected to the top of the shelf 1. A guide rail 3 is fixedly connected to the outer wall of the fixing seat 2. The guide rail 3 surrounds the shape of the shelf 1 in a top view. A transition arc angle is set at the corner of the guide rail 3. In this embodiment, the shelf 1 can be a plurality of shelves 1 arranged in a rectangular shape. The plurality of shelves 1 are connected by a set of continuous guide rails 3. Through the continuous guide rails 3, the inventory structure can realize the inventory operation of the storage area of ​​each shelf 1.

[0037] In order to enable the translation slide 4 to move along the guide rail 3 arranged around the shape of the shelf 1, a T-slot 301 is arranged on the outer wall of the guide rail 3 and in the center position, and a first flat groove 302 is arranged on the outer wall of the guide rail 3 and on both sides of the upper and lower sides of the T-slot 301, and a plurality of groups of support plates 21 distributed left and right are arranged on the inner side wall of the T-slot 301, and a front wall of a middle group of the plurality of support plates 21 is fixedly connected with the translation slide 4, and the left and right adjacent groups of the plurality of support plates 21 are rotatably connected by a plurality of groups of connecting blocks 22, and the connecting blocks 22 located between the two adjacent groups of support plates 21 are distributed in sequence at equal intervals up and down, and the plurality of groups of support plates 21 form an overall supporting force to support the translation slide 4, and the plurality of groups of connecting blocks 22 enable the plurality of groups of support plates 21 to be rotatably connected, and the translation slide 4 can pass smoothly at the transition arc angle of the guide rail 3 through the rotatable connection between the plurality of groups of support plates 21 without getting stuck;

[0038] In order to enable the translation slide 4 to translate along the length direction of the guide rail 3, a rectangular frame 8 is fixedly connected to the front wall of the translation slide 4 and near the lower end. The lower end of the rectangular frame 8 extends toward the lower side of the translation slide 4 and the horizontal height of the lower end of the rectangular frame 8 is close to the bottom of the shelf 1. The inner wall of the rectangular frame 8 is provided with a rectangular opening 801 that runs through the front and back. The inner wall of the rectangular opening 801 is slidably connected with a lifting slide 10. Slide blocks 1001 are provided on both the left and rear side walls of the lifting slide 10. The inner left wall and the inner right wall of the rectangular opening 801 of the rectangular frame 8 are provided with second flat grooves 802. Two groups of slide blocks 1001 are slidably connected to the inner walls of the two groups of second flat grooves 802 respectively. The inventory structure and the printing structure are both arranged on the front wall of the lifting slide 10. Multiple groups of support plates 21 and T-slots 301 are provided with a first rolling structure. A plurality of fixed columns 23 are fixedly connected to a front wall of a middle group of support plates 21, and a translation slide 4 is fixedly connected to one end of the plurality of fixed columns 23 away from the support plate 21. The first rolling structure includes a plurality of first rollers 24, which are rotatably connected to the upper and lower ends of the plurality of support plates 21 respectively, and the outer walls of the plurality of first rollers 24 are all rollingly connected to the inner wall of the T-slot 301. When the front wall of the translation slide 4 is subjected to force, the force is transmitted to the support plate 21 fixedly connected to the fixed column 23 through the fixed column 23, and then the bearing force is distributed to other support plates 21 through the plurality of connecting blocks 22. The first rollers 24 at the upper and lower ends of the support plate 21 are rollingly connected to the inner wall of the T-slot 301, so that the translation slide 4 can be suspended on the front wall of the guide rail 3 and can move along the length direction of the guide rail 3.

[0039] In order to increase the stability of the translation slide 4, a second rolling structure is provided between the translation slide 4 and the first flat groove 302, and the second rolling structure includes two groups of connecting shafts 19 and second rollers 20. The two groups of connecting shafts 19 are fixedly connected to the rear wall of the translation slide 4 and are respectively opposite to the two groups of first flat grooves 302 in front and back. The two groups of second rollers 20 are respectively rotatably connected to the ends of the two groups of connecting shafts 19 away from the translation slide 4. The circumferential outer walls of the two groups of second rollers 20 are respectively rollingly connected to the inner side walls of a group of first flat grooves 302. When the translation slide 4 is suspended on the front wall of the guide rail 3, the two groups of second rollers 20 are rollingly connected to the inner side walls of the first flat grooves 302, thereby further improving the bearing capacity of the translation slide 4, making the translation slide 4 more stable, which is conducive to improving the recognition accuracy.

[0040] In order to realize the translational movement of the translation slide 4, a translation driving structure for driving the translation slide 4 to move along the outer shape of the guide rail 3 is arranged between the translation slide 4 and the guide rail 3. The translation driving structure includes a first motor 6, a first tooth plate 5 and a first gear 7. The first motor 6 is fixedly connected to the front wall of the translation slide 4. The first tooth plate 5 is fixedly connected to the outer wall of the guide rail 3 and is distributed along the length direction of the guide rail 3. A first opening 401 that is through-through from front to back is arranged on the inner wall of the translation slide 4 and above the first motor 6. The horizontal height of the first opening 401 is adapted to the horizontal height of the first tooth plate 5. The first gear 7 is fixedly connected to the end of the shaft extending from the first motor 6. The outer wall of the first gear 7 passes through the first opening 401 and meshes with the first tooth plate 5. When the first motor 6 rotates, the first gear 7 is driven to rotate. The first gear 7 drives the translation slide 4 to move left and right through the meshing relationship with the first tooth plate 5, so as to achieve the purpose of translation of the translation slide 4. The goods in the length direction on the shelf 1 can be identified and counted in sequence, and multiple shelves 1 can also be identified and counted in sequence. When the first motor 6 stops rotating, the first gear 7 stops rotating synchronously, and the current position of the translation slide 4 is maintained through the self-locking effect of the first motor 6 and the meshing relationship between the first gear 7 and the first tooth plate 5, thereby playing a limiting role.

[0041] In order to realize the lifting action of the lifting slide 10, a lifting drive structure for driving the lifting slide 10 to rise and fall is arranged between the lifting slide 10 and the rectangular frame 8. The lifting drive structure includes a second motor 11, two sets of second tooth plates 9 and two sets of second gears 12. The two sets of second tooth plates 9 are fixedly connected to the front wall of the rectangular frame 8 and are respectively located on the left and right sides of the rectangular opening 801. The length directions of the two sets of second tooth plates 9 are parallel to the length direction of the rectangular frame 8. The second motor 11 is fixedly connected to the front wall of the lifting slide 10 and is located near the upper end of the lifting slide 10. The second motor 11 is a double-headed motor. The two sets of second gears 12 are respectively fixedly connected to the second motor 11 At the ends of the two groups of output shafts, the outer walls of the two groups of second gears 12 are respectively meshed with a group of second toothed plates 9. When the second motor 11 rotates, the second gear 12 is driven to rotate. The second gear 12 drives the lifting slide 10 to move up and down through the meshing relationship with the second toothed plate 9, so as to achieve the purpose of lifting the lifting slide 10, and realize the function of identifying and counting the goods in different height ranges on the shelf 1, effectively avoiding blind spots. When the second motor 11 stops rotating, the second gear 12 stops rotating synchronously, and the current position of the lifting slide 10 is maintained through the self-locking effect of the second motor 11 and the meshing relationship between the second gear 12 and the second toothed plate 9, thereby playing a limiting role;

[0042] In order to identify and count the goods on the shelf 1, the inner wall of the lifting slide 10 is provided with a second opening 1002 that runs through from front to back, the inventory structure is arranged on the inner side wall of the second opening 1002, the printing structure is arranged on the front wall of the lifting slide 10 and is located below the inventory structure, the inventory structure includes a visual sensor 14, a wide-mouth scanning gun 15 and two sets of fill lights 16, the inner wall of the lifting slide 10 is provided with a second opening 1002 that runs through from front to back, and the lower inner wall of the second opening 1002 is fixedly connected with a support plate 13 extending toward the front side of the lifting slide 10, The visual sensor 14 is detachably connected to the upper wall of the support plate 13 by screws, the wide-mouth scanner 15 is detachably connected to the upper wall inside the second opening 1002 by screws, and two groups of fill lights 16 are rotatably connected to the inner left wall and the inner right wall of the second opening 1002 by a group of brackets respectively. The fill lights 16 are used to supplement the light source to improve the accuracy of identification and inventory. The visual sensor 14 is used to identify and collect cargo information, and the wide-mouth scanner 15 is used to read the cargo information recorded on the RFID electronic tag on the cargo to transmit it to the main control computer for storage location information confirmation;

[0043] In order to print RFID electronic tags on site, the printing structure includes a printing box 17 and a label printer 25. The printing box 17 is fixedly connected to the front wall of the lifting slide 10 and is close to the lower wall of the lifting slide 10. The label printer 25 is fixedly connected to the inner rear wall of the printing box 17 and is close to the upper wall of the printing box 17. The front wall of the printing box 17 is rotatably connected to the front door 18. During the on-site inventory process, any damaged labels or new substances found can be identified by the visual sensor 14, and the main control computer can control the label printer 25 to print RFID printed labels and store them in the printing box 17. After the inventory is completed, the on-site inventory personnel can open the front door 18 and take out new electronic labels to post them according to the location information.

[0044] Working principle: In this embodiment, the shelves 1 can be multiple shelves 1 arranged in a rectangular shape, and the multiple shelves 1 are connected by a set of continuous guide rails 3. Through the continuous guide rails 3, the inventory structure can realize the inventory operation of the storage area of ​​each shelf 1. Multiple groups of support plates 21 form an overall supporting force to support the translation slide 4. Multiple groups of connecting blocks 22 enable the multiple groups of support plates 21 to be rotatably connected. At the transition arc angle of the guide rail 3, the translation slide 4 can pass smoothly through the rotation connection between the multiple groups of support plates 21 without getting stuck. When the front wall of the translation slide 4 is subjected to force, the force is transmitted to the support plate 21 fixedly connected to the fixed column 23 through the fixed column 23, and then the load-bearing force is transmitted through the multiple groups of connecting blocks 22. The first gear 7 is driven by the meshing relationship with the first toothed plate 5, and the first gear 7 drives the translation slide 4 to move left and right, thereby realizing the translation of the translation slide 4, and the goods in the length direction of the shelf 1 can be identified one by one. When the second motor 11 stops rotating, the second gear 12 stops rotating synchronously, and the meshing relationship between the first gear 7 and the first tooth plate 5 is used to maintain the current position of the translation slide 4, thereby playing a limiting role. When the second motor 11 rotates, it drives the second gear 12 to rotate. The second gear 12 drives the lifting slide 10 up and down through the meshing relationship with the second tooth plate 9, so as to achieve the purpose of lifting the lifting slide 10, and realize the function of identifying and counting the goods in different height ranges on the shelf 1, effectively avoiding blind spots. When the second motor 11 stops rotating, the second gear 12 stops rotating synchronously, and the self-locking effect of the second motor 11 and the second gear 12 are used to drive the lifting slide 10 up and down. The meshing relationship between the wheel 12 and the second tooth plate 9 maintains the current position of the lifting slide 10, thereby playing a limiting role. The fill light 16 is used to supplement the light source to improve the accuracy of identification and inventory. The visual sensor 14 is used to identify and collect cargo information. The wide-mouth scanner 15 is used to read the cargo information recorded on the RFID electronic tag on the cargo to transmit it to the main control computer for confirmation of the storage location information. During the on-site inventory process, any damaged labels or new materials found can be identified by the visual sensor 14, and the main control computer can control the label printer 25 to print RFID printed labels and store them in the printing box 17. After the inventory is completed, the on-site inventory personnel can open the front door 18 and take out the new electronic label to post it according to the location information.

[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for printing and fast inventorying electronic tags based on RFID, characterized in that: The invention comprises a main control computer, a wireless communication module, an inventory structure, a printing structure and a shelf (1), wherein the shelf (1) has a front and rear double-sided storage area, the top of the shelf (1) is fixedly connected to a fixing seat (2), the outer wall of the fixing seat (2) is fixedly connected to a guide rail (3), the guide rail (3) surrounds the outer shape of the shelf (1) in a top view projection, a transition arc angle is arranged at the corner of the guide rail (3), a T-shaped groove (301) is arranged on the outer wall of the guide rail (3) and in the middle, a first flat groove (302) is arranged on the outer wall of the guide rail (3) and on both the upper and lower sides of the T-shaped groove (301), and the inner wall of the T-shaped groove (301) is provided with a plurality of grooves. A plurality of groups of support plates (21) are arranged to be distributed in the left and right directions. A front wall of a middle group of the plurality of support plates (21) is fixedly connected to a translation slide (4). A rectangular frame (8) is fixedly connected to the front wall of the translation slide (4) and near the lower end thereof. The lower end of the rectangular frame (8) extends toward the lower side of the translation slide (4) and the horizontal height of the lower end of the rectangular frame (8) is close to the bottom of the shelf (1). A rectangular opening (801) is arranged on the inner wall of the rectangular frame (8) and is through-through from front to back. A lifting slide (10) is slidably connected to the inner wall of the rectangular opening (801). The inventory counting structure and the printing structure are arranged on the front wall of the lifting slide (10).

2. The RFID-based electronic label printing and rapid inventory device according to claim 1 is characterized in that: A first rolling structure is arranged between the multiple groups of support plates (21) and the T-slots (301); multiple groups of fixed columns (23) are fixedly connected to a front wall of a middle group of the multiple groups of support plates (21); the translation slide (4) is fixedly connected to one end of the multiple groups of fixed columns (23) away from the support plate (21); a second rolling structure is arranged between the translation slide (4) and the first flat groove (302); a translation driving structure for driving the translation slide (4) to move along the outer shape of the guide rail (3) is arranged between the translation slide (4) and the guide rail (3); a lifting driving structure for driving the lifting slide (10) to rise and fall is arranged between the lifting slide (10) and the rectangular frame (8); a second opening (1002) which is through-through from front to back is arranged on the inner wall of the lifting slide (10); the inventory structure is arranged on the inner side wall of the second opening (1002); and the printing structure is arranged on the front wall of the lifting slide (10) and is located below the inventory structure.

3. The RFID-based electronic label printing and rapid inventory device according to claim 2 is characterized in that: Two adjacent left and right groups of the plurality of groups of support plates (21) are rotatably connected via a plurality of groups of connecting blocks (22), and the connecting blocks (22) located between two adjacent groups of support plates (21) of the plurality of groups of connecting blocks (22) are sequentially distributed at equal intervals up and down.

4. The RFID-based electronic label printing and rapid inventory device according to claim 3 is characterized in that: The first rolling structure comprises a plurality of groups of first rollers (24), the plurality of groups of first rollers (24) being rotatably connected to the upper and lower ends of the plurality of groups of support plates (21), and the outer walls of the plurality of groups of first rollers (24) being rollingly connected to the inner side walls of the T-shaped slots (301).

5. The RFID-based electronic label printing and rapid inventory device according to claim 4 is characterized in that: The second rolling structure comprises two groups of connecting shafts (19) and second rollers (20); the two groups of connecting shafts (19) are fixedly connected to the rear wall of the translation slide (4) and are respectively opposite to the two groups of first flat grooves (302) in front and back; the two groups of second rollers (20) are respectively rotatably connected to one end of the two groups of connecting shafts (19) away from the translation slide (4); and the circumferential outer walls of the two groups of second rollers (20) are respectively rollingly connected to the inner side walls of one group of first flat grooves (302).

6. The RFID-based electronic label printing and rapid inventory device according to claim 5, characterized in that: The translation driving structure comprises a first motor (6), a first tooth plate (5) and a first gear (7); the first motor (6) is fixedly connected to the front wall of the translation slide (4); the first tooth plate (5) is fixedly connected to the outer wall of the guide rail (3) and is distributed along the length direction of the guide rail (3); a first opening (401) which is through-through from front to back is arranged on the inner wall of the translation slide (4) and above the first motor (6); the horizontal height of the first opening (401) matches the horizontal height of the first tooth plate (5); the first gear (7) is fixedly connected to the end of the shaft extending from the first motor (6); the outer wall of the first gear (7) passes through the first opening (401) and meshes with each other at the first tooth plate (5).

7. The RFID-based electronic label printing and rapid inventory device according to claim 6, characterized in that: The lifting drive structure comprises a second motor (11), two groups of second tooth plates (9) and two groups of second gears (12); the two groups of second tooth plates (9) are fixedly connected to the front wall of the rectangular frame (8) and are respectively located on the left and right sides of the rectangular opening (801); the length directions of the two groups of second tooth plates (9) are parallel to the length direction of the rectangular frame (8); the second motor (11) is fixedly connected to the front wall of the lifting slide (10) and is located near the upper end of the lifting slide (10); the second motor (11) is a double-headed motor; the two groups of second gears (12) are respectively fixedly connected to the ends of the two groups of output shafts of the second motor (11); and the outer walls of the two groups of second gears (12) are respectively meshed with one group of second tooth plates (9).

8. The RFID-based electronic label printing and rapid inventory device according to claim 7, characterized in that: The inventory structure includes a visual sensor (14), a wide-mouth scanning gun (15) and two groups of fill lights (16); the inner wall of the lifting slide (10) is provided with a second opening (1002) which is through-through from front to back; the lower inner wall of the second opening (1002) is fixedly connected with a support plate (13) extending toward the front side of the lifting slide (10); the visual sensor (14) is detachably connected to the upper wall of the support plate (13) by screws; the wide-mouth scanning gun (15) is detachably connected to the upper inner wall of the second opening (1002) by screws; the two groups of fill lights (16) are rotatably connected to the inner left wall and the inner right wall of the second opening (1002) respectively by a group of brackets.

9. The RFID-based electronic label printing and rapid inventory device according to claim 8, characterized in that: The printing structure comprises a printing box (17) and a label printer (25); the printing box (17) is fixedly connected to the front wall of the lifting slide (10) and is close to the lower wall of the lifting slide (10); the label printer (25) is fixedly connected to the inner rear wall of the printing box (17) and is close to the upper wall of the printing box (17); and the front wall of the printing box (17) is rotatably connected to a front door (18).

10. The RFID-based electronic label printing and rapid inventory device according to claim 9, characterized in that: The left and rear side walls of the lifting slide (10) are both provided with sliders (1001), the inner left wall and the inner right wall of the rectangular opening (801) of the rectangular frame (8) are both provided with second flat grooves (802), and the two groups of sliders (1001) are respectively slidably connected to the inner side walls of the two groups of second flat grooves (802).

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