Online code scanning equipment

Abstract

The utility model discloses an on-line code scanning device, which belongs to the technical field of PCB (printed circuit board) production, and comprises a case, the top of the case is connected with adjustable driving assemblies used for driving a workpiece to move, and the driving width between the adjustable driving assemblies is adjusted according to the width of the workpiece; the moving assembly is connected with a limiting assembly used for stopping and positioning a workpiece. The adjustable driving assembly is provided with a detection assembly used for online code scanning in the feeding direction. The detection assembly comprises a light supplementing lamp, code scanners, a supporting assembly, a two-dimensional adjusting connecting assembly and a three-dimensional adjusting connecting assembly, the supporting assembly is connected with the adjusting type driving assembly, the supporting assembly is connected with the two-dimensional adjusting connecting assembly and the three-dimensional adjusting connecting assembly, the two-dimensional adjusting connecting assembly is connected with the code scanners at equal intervals, and the code scanners are connected with the three-dimensional adjusting connecting assembly. The three-dimensional adjusting connecting assembly is symmetrically connected with light supplementing lamps. By means of the mode, the online bar code reading and detecting assembly can expand the code reading area, product model changing is easy and convenient, and meanwhile the online bar code reading and detecting assembly is suitable for code scanning of workpieces with different widths.

Description

Technical Field

[0001] The utility model relates to the technical field of PCB production, and particularly relates to an online code scanning device. Background Art

[0002] During the processing of the circuit board (PCB board) used in the SMT industry, a two-dimensional code is required for tracing the production process, and a code scanning device is needed to scan the code during subsequent processing.

[0003] Chinese Patent CN216656756U discloses an energy meter PCB board laser engraving and code scanning device, which relates to the technical field of PCB board laser engraving and code scanning, and solves the technical problems that the laser engraving and code scanning of the existing laser engraving and code scanning machine work independently and separately, resulting in discontinuous code scanning work and low work efficiency. The device includes a laser engraving machine main body, a laser engraving laser lens, a code scanning device and a working material level track. The laser engraving laser lens and the code scanning device are both arranged at the upper end of the working material level track. The working material level track can convey the PCB board. The laser engraving machine main body can enable the laser engraving laser lens to engrave codes on the PCB board, and the code scanning device can scan the codes engraved on the PCB board. The utility model combines laser engraving two-dimensional codes and code scanning operations into one. After laser engraving, the PCB board is directly conveyed under the code scanning device for code scanning work, and the scanned code data is stored in the code scanning control system, improving the quality and efficiency of products, with a simple and efficient structure and low cost.

[0004] However, the existing device still has the following problems: the code scanning device can only scan a single PCB board and cannot be used for multiple boards. At the same time, the working material level track can only adapt to the conveyance of PCB boards with a single width.

[0005] Based on this, the utility model designs an online code scanning device to solve the above problems. Content of the Utility Model

[0006] In view of the above-mentioned drawbacks of the prior art, the utility model provides an online code scanning device.

[0007] To achieve the above objectives, the utility model is realized through the following technical solutions:

[0008] An online code scanning device includes a chassis:

[0009] A regulating drive assembly for driving the workpiece to move is connected to the top of the chassis, and the drive width between the regulating drive assemblies is adjusted according to the width of the workpiece;

[0010] A limiting assembly for blocking and positioning the workpiece is connected to the moving assembly;

[0011] The adjustable drive assembly is provided with a detection assembly for online code scanning in the feeding direction;

[0012] The detection component includes a fill light, a barcode scanner, a support component, a two-dimensional adjustment connection component and a three-dimensional adjustment connection component. The support component is connected to the adjustable drive component, and the two-dimensional adjustment connection component and the three-dimensional adjustment connection component are connected to the support component. The two-dimensional adjustment connection component is connected to the barcode scanner at equal intervals, and the three-dimensional adjustment connection component is symmetrically connected to the fill light, and the barcode scanner is located directly above the position covered by the fill light.

[0013] Furthermore, the adjustable drive assembly includes a spacing adjustment assembly, a follower drive assembly and a moving assembly. The follower drive assembly and the spacing adjustment assembly are installed on the top of the chassis. The spacing adjustment assembly is connected to the moving assembly, and the moving assembly is connected to the follower drive assembly.

[0014] Furthermore, the spacing adjustment assembly includes a first fixed box, a driving member, a second fixed box, a threaded rod, a guide rod and a second linkage assembly. The first fixed box and the second fixed box are fixedly installed on the front and rear sides of the top of the chassis. Both ends of the first fixed box and the second fixed box are rotatably connected to the threaded rod through bearings. A group of threaded rod front ends are fixedly connected to the driving member, and the rear end of the threaded rod is transmission connected through the second linkage assembly. The second linkage assembly is located in the second fixed box. A guide rod is provided on the outside of the threaded rod, and both ends of the guide rod are fixedly connected to the first fixed box and the second fixed box respectively. The threaded rod and the guide rod are both connected to the moving assembly.

[0015] Furthermore, the follower drive assembly includes a polygonal rod, a first linkage assembly, a motor, a first follower wheel and a second follower wheel. The motor is fixedly connected to the top of the chassis, the motor is transmission connected to the polygonal rod through the first linkage assembly, the two ends of the polygonal rod are rotatably connected to the first fixed box and the second fixed box through bearings, the polygonal rod is slidably connected to the first follower wheel, the second follower wheel is fixedly connected to the polygonal rod, and the first follower wheel and the second follower wheel are both connected to the moving assembly.

[0016] Furthermore, the moving assembly includes a synchronous wheel, a mounting plate, a movable plate and a synchronous belt. The movable plate is threadedly connected to the threaded rod through a threaded sleeve, and the movable plate is slidably connected to the guide rod through a slide cylinder. Mounting plates are connected between the movable plates and the inner wall of the first fixed box. The mounting plate is rotatably connected to multiple groups of identical synchronous wheels, and the outer wall of the synchronous wheel is rotatably connected to a synchronous belt. The synchronous belt on the first fixed box side is rotatably connected to the second follower wheel, the synchronous belt on the movable plate side is rotatably connected to the first follower wheel, and the first follower wheel is rotatably connected to the side wall of the movable plate.

[0017] Furthermore, the polygonal rod is rotatably connected in the transverse hole provided in the movable plate, and the polygonal rod does not contact the movable plate.

[0018] Furthermore, the limiting component includes a limiting baffle and a baffle. A baffle is installed on the outer side of the mounting plate connected to the movable plate. The driving end of the baffle is fixedly connected to the limiting baffle, and the upright part of the limiting baffle is located between the two groups of mounting plates.

[0019] Furthermore, the supporting component includes a third mounting rod and a straight rod. The straight rod is fixedly connected to the tops of the first fixed box and the second fixed box. The top of the straight rod is fixedly connected to the third mounting rod, and the third mounting rod is movably connected to the two-dimensional adjustment connection component and the three-dimensional adjustment connection component.

[0020] Furthermore, the two-dimensional adjustment connection component includes a first mounting rod, a second mounting rod, a first clamping block and a second clamping block. The second clamping block is movably connected to the third mounting rod. The top of the second clamping block is fixedly connected to the second mounting rod. The first clamping block is slidably connected to the second mounting rod in a fitting manner. The side wall of the first clamping block is fixedly connected to the first mounting rod, and the barcode scanners are equidistantly installed on the first mounting rod. The first clamping block is locked and fixed to the second mounting rod by bolts, and the second clamping block is locked to the third mounting rod by bolts.

[0021] Furthermore, the three-dimensional adjustment connection component includes a U-shaped mounting plate, a third clamping block, a fourth mounting rod, a fourth clamping block, a fifth mounting rod, a fifth clamping block and a connecting block. The third clamping block is slidably connected to the third mounting rod in a fitting manner. The third clamping block is slidably connected to the fourth mounting rod in a fitting manner. The bottom of the fourth mounting rod is fixedly connected to the fourth clamping block through a mounting block. The fourth clamping block is horizontally arranged. The fifth clamping block is slidably connected to the fourth clamping block. The fifth clamping block is fixedly connected to the fifth mounting rod. The fifth mounting rod is fixedly connected to the U-shaped mounting plate. The fill lights are fixedly installed on the left and right inner walls of the U-shaped mounting plate, and the fill lights are symmetrically arranged.

[0022] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0023] Select and turn on the corresponding number of barcode scanners according to the detection orientation. The two-dimensional adjustment connection component adjusts the barcode scanners to a suitable position. Then, according to the position of the barcode scanners, the three-dimensional adjustment connection component adjusts the position of the fill lights. Turn on the fill lights and the barcode scanners. Then, according to the width of the workpiece, adjust the width of the adjustable driving component to adapt to the width of the workpiece. Convey the workpiece to the adjustable driving component. The adjustable driving component drives the workpiece to move. When the workpiece moves below the barcode scanners, the limiting component blocks the workpiece. The fill lights and the barcode scanners cooperate to perform barcode scanning on it, perform online barcode reading. The detection component can expand the code reading area, and the product type change is simple. At the same time, it is suitable for workpieces of different widths to perform barcode scanning. Description of the Drawings

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0025] Figure 1 A three-dimensional view of an online code scanning device of the present invention Figure 1 ;

[0026] Figure 2 A front view of an online code scanning device of the present invention;

[0027] Figure 3 A three-dimensional view of an online code scanning device of the present invention Figure 2 ;

[0028] Figure 4 A three-dimensional view of an online code scanning device of the present invention Figure 3 ;

[0029] Figure 5 A three-dimensional view of an online code scanning device of the present invention Figure 4 ;

[0030] Figure 6 A three-dimensional view of an online code scanning device when the second fixed box of the present invention is opened.

[0031] The reference numerals in the figure respectively represent:

[0032] 1. Chassis 2. Adjustable drive assembly 21. First fixed box 22. Driving member 23. Synchronous pulley 24. Mounting plate 25. Movable plate 26. Second fixed box 27. Synchronous belt 28. Polygonal rod 29. First linkage assembly 210. Threaded rod 211. Guide rod 212. Motor 213. First follower pulley 214. Second linkage assembly 215. Second follower pulley 3. Limiting assembly 31. Limiting baffle 32. Baffle 4. Detection assembly 41. Supplementary light 42. U-shaped mounting plate 43. Code scanner 44. First mounting rod 45. Second mounting rod 46. First clamping block 47. Second clamping block 48. Third mounting rod 49. Third clamping block 410. Fourth mounting rod 411. Fourth clamping block 412. Fifth mounting rod 413. Fifth clamping block 414. Connecting block 415. Straight rod Detailed implementation manners

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts fall within the scope of protection of the present utility model.

[0034] In the following description, "left", "right", "front", "rear", "up", and "down" mentioned are oriented in the perspective direction of the front view.

[0035] In some embodiments, please refer to the specification appendix Figures 1-6 , an online code scanning device, including a chassis 1:

[0036] A regulating drive assembly 2 for driving the movement of the workpiece is connected to the top of the chassis 1, and the driving width between the regulating drive assemblies 2 is adjusted according to the width of the workpiece;

[0037] The moving assembly is connected with a limiting assembly 3 for blocking and positioning the workpiece;

[0038] The regulating drive assembly 2 is provided with a detection assembly 4 for online code scanning in the feeding direction;

[0039] The detection assembly 4 includes a fill light 42, a code scanner 43, a support assembly, a two-dimensional adjustment connection assembly, and a three-dimensional adjustment connection assembly. The support assembly is connected to the regulating drive assembly 2, and the two-dimensional adjustment connection assembly and the three-dimensional adjustment connection assembly are connected to the support assembly. The code scanners 43 are connected at equal intervals by the two-dimensional adjustment connection assembly, and the fill lights 42 are symmetrically connected by the three-dimensional adjustment connection assembly, and the code scanner 43 is directly above the orientation covered by the fill light 42.

[0040] According to the detection orientation, the corresponding number of groups of code scanners 43 are selected to be turned on. The two-dimensional adjustment connection assembly adjusts the code scanner 43 to a suitable position, and then according to the position of the code scanner 43, the three-dimensional adjustment connection assembly adjusts the position of the fill light 42. After turning on the fill light 42 and the code scanner 43, according to the width of the workpiece, the width of the regulating drive assembly 2 is adjusted to adapt to the width of the workpiece. The workpiece is conveyed to the regulating drive assembly 2, and the regulating drive assembly 2 drives the workpiece to move. When the workpiece moves below the code scanner 43, the limiting assembly 3 blocks the workpiece, and the fill light 42 and the code scanner 43 cooperate to perform code scanning processing, online bar code reading. The detection assembly 4 can expand the code reading area, the product model change is simple, and at the same time, it is suitable for workpieces of different widths to perform code scanning.

[0041] The adjustable drive assembly 2 includes a spacing adjustment assembly, a follower drive assembly and a moving assembly. The follower drive assembly and the spacing adjustment assembly are installed on the top of the chassis 1. The spacing adjustment assembly is connected to the moving assembly, and the moving assembly is connected to the follower drive assembly.

[0042] In some embodiments, please refer to the attached instructions. Figures 1-6 , the spacing adjustment component includes a first fixed box 21, a driving member 22, a second fixed box 26, a threaded rod 210, a guide rod 211 and a second linkage component 214, the first fixed box 21 and the second fixed box 26 are fixedly installed on the front and rear sides of the top of the chassis 1, the first fixed box 21 and the second fixed box 26 are rotatably connected to the threaded rod 210 at both ends through bearings, a group of threaded rods 210 are fixedly connected to the driving member 22 at the front end, and the threaded rod 210 is connected to the rear end through the second linkage component 214, and the second linkage component 214 is located in the second fixed box 26, and a guide rod 211 is provided at the outer side of the threaded rod 210, and the two ends of the guide rod 211 are fixedly connected to the first fixed box 21 and the second fixed box 26, respectively, and the threaded rod 210 and the guide rod 211 are both connected to the moving component;

[0043] The driving member 22 is a hand wheel or a servo motor;

[0044] The follower drive assembly includes a polygonal rod 28, a first linkage assembly 29, a motor 212, a first follower wheel 213 and a second follower wheel 215. The motor 212 is fixedly connected to the top of the chassis 1. The motor 212 is transmission-connected to the polygonal rod 28 through the first linkage assembly 29. Both ends of the polygonal rod 28 are rotationally connected to the first fixed box 21 and the second fixed box 26 through bearings. The polygonal rod 28 is slidably connected to the first follower wheel 213. The second follower wheel 215 is fixedly connected to the polygonal rod 28. The first follower wheel 213 and the second follower wheel 215 are both connected to the moving assembly.

[0045] The polygonal rod 28 and the second linkage assembly 214 are selected from a synchronous belt assembly, a sprocket assembly or a pulley assembly.

[0046] The moving assembly includes a synchronous wheel 23, a mounting plate 24, a movable plate 25 and a synchronous belt 27. The movable plate 25 is threadedly connected to the threaded rod 210 through a threaded sleeve. The movable plate 25 is slidably connected to the guide rod 211 through a slide tube. The movable plates 25 and the inner wall of the first fixed box 21 are connected with mounting plates 24. The mounting plates 24 are rotatably connected to multiple groups of identical synchronous wheels 23. The outer wall of the synchronous wheel 23 is rotatably connected to the synchronous belt 27. The synchronous belt 27 on the side of the first fixed box 21 is rotatably connected to the second follower wheel 215. The synchronous belt 27 on the side of the movable plate 25 is rotatably connected to the first follower wheel 213. The first follower wheel 213 is rotatably connected to the side wall of the movable plate 25.

[0047] The polygonal rod 28 is rotatably connected within a transverse hole formed in the movable plate 25, and the polygonal rod 28 does not contact the movable plate 25;

[0048] According to the width of the workpiece, the driving member 22 of the spacing adjustment assembly of the adjustable driving assembly 2 drives the threaded rod 210 to rotate. The threaded rod 210 drives the movable plate 25 of the moving assembly to slide along the guide rod 211. The movable plate 25 drives the mounting plate 24 connected to the movable plate 25 to move. The mounting plate 24 drives the width of the synchronous belt 27 between the two groups to be adjusted to adapt to the width of the workpiece. The movable plate 25 drives the first follower wheel 213 to slide along the polygonal rod 28 of the follower driving assembly. The workpiece is conveyed onto the synchronous belt 27. The motor 212 drives the polygonal rod 28 to rotate through the first linkage assembly 29. The polygonal rod 28 drives the first follower wheel 213 and the second follower wheel 215 to rotate. The first follower wheel 213 and the second follower wheel 215 drive the synchronous belt 27 to rotate. The synchronous belt 27 rotates along the synchronous wheel 23. The synchronous wheel 23 drives the workpiece to move, enabling workpieces of different widths to move;

[0049] In some embodiments, please refer to the accompanying specification Figures 1-3 , the limiting assembly 3 includes a limiting baffle 31 and a baffle 32. A baffle 32 is installed on the outer side of the mounting plate 24 connected to the movable plate 25. The driving end of the baffle 32 is fixedly connected to the limiting baffle 31, and the upright portion of the limiting baffle 31 is located between the two mounting plates 24;

[0050] When the adjustable driving assembly 2 drives the workpiece to move, the baffle 32 of the limiting assembly 3 drives the limiting baffle 31 to move downward. The limiting baffle 31 blocks the workpiece. After the limiting baffle 31 blocks, the detection assembly 4 performs code scanning. After code scanning, the baffle 32 drives the limiting baffle 31 to move upward. After the limiting baffle 31 separates from the workpiece, the adjustable driving assembly 2 drives the workpiece to continue moving;

[0051] In some embodiments, please refer to the accompanying specification Figures 1-6 , the support assembly includes a third mounting rod 48 and a straight rod 415. The first fixed box 21 and the top of the second fixed box 26 are fixedly connected with a straight rod 415. The top of the straight rod 415 is fixedly connected with a third mounting rod 48. The third mounting rod 48 is movably connected to the two-dimensional adjustment connection assembly and the three-dimensional adjustment connection assembly;

[0052] The two-dimensional adjustment connection component includes a first mounting rod 44, a second mounting rod 45, a first clamping block 46 and a second clamping block 47. The second clamping block 47 is movably connected to a third mounting rod 48. A second mounting rod 45 is fixedly connected to the top of the second clamping block 47. The first clamping block 46 is in sliding fit connection with the second mounting rod 45. A first mounting rod 44 is fixedly connected to the side wall of the first clamping block 46. And the barcode scanners 43 are equidistantly installed on the first mounting rod 44. The first clamping block 46 is fixedly locked to the second mounting rod 45 by bolts. The second clamping block 47 is locked to the third mounting rod 48 by bolts;

[0053] The three-dimensional adjustment connection component includes a U-shaped mounting plate 41, a third clamping block 49, a fourth mounting rod 410, a fourth clamping block 411, a fifth mounting rod 412, a fifth clamping block 413 and a connection block 414. The third clamping block 49 is in sliding fit connection with the third mounting rod 48. A fourth mounting rod 410 is in sliding fit connection with the third clamping block 49. The bottom of the fourth mounting rod 410 is fixedly connected to the fourth clamping block 411 through a mounting block. The fourth clamping block 411 is horizontally arranged. The fifth clamping block 413 is in sliding connection with the fourth clamping block 411. A fifth mounting rod 412 is fixedly connected to the fifth clamping block 413. A U-shaped mounting plate 41 is fixedly connected to the fifth mounting rod 412. The fill lights 42 are fixedly installed on the left and right inner walls of the U-shaped mounting plate 41. And the fill lights 42 are symmetrically arranged;

[0054] Loosen the second clamping block 47 of the two-dimensional adjustment connection component, slide the second clamping block 47, and the second clamping block 47 drives the barcode scanner 43 to adjust the position in the front and back directions. Then lock the second clamping block 47. Then loosen the first clamping block 46. The first clamping block 46 slides up and down on the second mounting rod 45. The first clamping block 46 drives the barcode scanner 43 to adjust the position in the vertical direction through the first mounting rod 44. Then lock the first clamping block 46 to realize the two-dimensional position adjustment of the barcode scanner 43. Then, loosen the connection position between the third clamping block 49 and the third mounting rod 48. The third clamping block 49 slides on the third mounting rod 48. The third mounting rod 48 drives the fill light 42 to adjust the position in the front and back directions. Then loosen the connection position between the third clamping block 49 and the fourth mounting rod 410. The fourth mounting rod 410 slides in the third clamping block 49. The fourth mounting rod 410 drives the fill light 42 to adjust the position in the vertical direction. Then lock the third clamping block 49. Loosen the fifth clamping block 413. The fifth clamping block 413 slides on the fourth clamping block 411. The fifth clamping block 413 drives the fill light 42 to adjust the position in the left and right directions to realize the three-dimensional adjustment of the fill light 42;

[0055] Select and turn on the corresponding number of barcode scanners 43 according to the detection orientation. The two-dimensional adjustment connection component adjusts the barcode scanner 43 to a suitable position, and then adjusts the position of the fill light 42 according to the position of the barcode scanner 43 by the three-dimensional adjustment connection component. Turn on the fill light 42 and the barcode scanner 43. Then, adjust the width of the adjustable drive component 2 to adapt to the width of the workpiece according to the width of the workpiece. Convey the workpiece to the adjustable drive component 2, and the adjustable drive component 2 drives the workpiece to move. When the workpiece moves below the barcode scanner 43, the limit component 3 blocks the workpiece, and the fill light 42 and the barcode scanner 43 cooperate to perform barcode scanning processing and online barcode reading. The barcode scanner 43 can expand the code reading area, and the product type change is simple. At the same time, it is suitable for barcoding workpieces of different widths.

[0056] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements will not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An online code scanning device, comprising a chassis (1), characterized in that: The top of the chassis (1) is connected to an adjustable drive assembly (2) for driving the workpiece to move, and the drive width between the adjustable drive assemblies (2) is adjusted according to the width of the workpiece; The moving component is connected with a limiting component (3) for blocking and positioning the workpiece; The adjustable drive component (2) is provided with a detection component (4) for online code scanning in the feeding direction; The detection component (4) comprises a fill light (42), a code scanner (43), a support component, a two-dimensional adjustment connection component and a three-dimensional adjustment connection component. The support component is connected to the adjustable drive component (2). The two-dimensional adjustment connection component and the three-dimensional adjustment connection component are connected to the support component. The two-dimensional adjustment connection component is connected to the code scanner (43) at equal intervals. The three-dimensional adjustment connection component is symmetrically connected to the fill light (42), and the code scanner (43) is located directly above the position covered by the fill light (42).

2. The online code scanning device according to claim 1, characterized in that: The adjustable drive assembly (2) comprises a spacing adjustment assembly, a follower drive assembly and a moving assembly. The follower drive assembly and the spacing adjustment assembly are mounted on the top of the chassis (1). The spacing adjustment assembly is connected to the moving assembly, and the moving assembly is connected to the follower drive assembly.

3. The online code scanning device according to claim 2, characterized in that: The spacing adjustment component comprises a first fixed box (21), a driving member (22), a second fixed box (26), a threaded rod (210), a guide rod (211) and a second linkage component (214). The first fixed box (21) and the second fixed box (26) are fixedly installed on the front and rear sides of the top of the chassis (1). Both ends of the first fixed box (21) and the second fixed box (26) are rotatably connected to the threaded rod (210) through bearings. The front end of a group of threaded rods (210) is fixedly connected to the driving member (22). The rear end of the threaded rod (210) is transmission-connected through the second linkage component (214). The second linkage component (214) is located in the second fixed box (26). A guide rod (211) is provided at the outer side of the threaded rod (210). Both ends of the guide rod (211) are fixedly connected to the first fixed box (21) and the second fixed box (26). Both the threaded rod (210) and the guide rod (211) are connected to the moving component.

4. The online code scanning device according to claim 3, characterized in that: The follower drive assembly comprises a polygonal rod (28), a first linkage assembly (29), a motor (212), a first follower wheel (213) and a second follower wheel (215); the motor (212) is fixedly connected to the top of the chassis (1); the motor (212) is transmission-connected to the polygonal rod (28) through the first linkage assembly (29); both ends of the polygonal rod (28) are rotationally connected to the first fixed box (21) and the second fixed box (26) through bearings; the polygonal rod (28) is slidably connected to the first follower wheel (213); the second follower wheel (215) is fixedly connected to the polygonal rod (28); and both the first follower wheel (213) and the second follower wheel (215) are connected to the moving assembly.

5. The online code scanning device according to claim 4, characterized in that: The moving assembly comprises a synchronous wheel (23), a mounting plate (24), a movable plate (25) and a synchronous belt (27); the movable plate (25) is threadedly connected to a threaded rod (210) through a threaded sleeve; the movable plate (25) is slidably connected to a guide rod (211) through a slide tube; mounting plates (24) are connected between the movable plates (25) and the inner wall of the first fixed box (21); the mounting plates (24) are rotatably connected to multiple groups of identical synchronous wheels (23); the outer wall of the synchronous wheel (23) is rotatably connected to a synchronous belt (27); the synchronous belt (27) on the side of the first fixed box (21) is rotatably connected to the second follower wheel (215); the synchronous belt (27) on the side of the movable plate (25) is rotatably connected to the first follower wheel (213); and the first follower wheel (213) is rotatably connected to the side wall of the movable plate (25).

6. The online code scanning device according to claim 5, characterized in that: The polygonal rod (28) is rotatably connected in a transverse hole provided in the movable plate (25), and the polygonal rod (28) does not contact the movable plate (25).

7. The online code scanning device according to claim 6, characterized in that: The limiting assembly (3) comprises a limiting baffle (31) and a baffle (32); the baffle (32) is installed on the outside of the mounting plate (24) connected to the movable plate (25); the driving end of the baffle (32) is fixedly connected to the limiting baffle (31); and the upright part of the limiting baffle (31) is located between the two groups of mounting plates (24).

8. The online code scanning device according to any one of claims 3 to 7, characterized in that: The support assembly comprises a third mounting rod (48) and a straight rod (415); the straight rod (415) is fixedly connected to the top of the first fixed box (21) and the second fixed box (26); the third mounting rod (48) is fixedly connected to the top of the straight rod (415); and the third mounting rod (48) is movably connected to the two-dimensional adjustment connection assembly and the three-dimensional adjustment connection assembly.

9. The online code scanning device according to claim 8, characterized in that: The two-dimensional adjustment connection assembly comprises a first mounting rod (44), a second mounting rod (45), a first clamping block (46) and a second clamping block (47); the second clamping block (47) is movably connected to the third mounting rod (48); the top of the second clamping block (47) is fixedly connected to the second mounting rod (45); the first clamping block (46) and the second mounting rod (45) are slidably connected in a close fit; the side wall of the first clamping block (46) is fixedly connected to the first mounting rod (44); the barcode scanner (43) is installed on the first mounting rod (44) at equal intervals; the first clamping block (46) is fixedly fixed to the second mounting rod (45) by bolts; and the second clamping block (47) is locked to the third mounting rod (48) by bolts.

10. The online code scanning device according to claim 9, characterized in that: The three-dimensional adjustment connection component comprises a U-shaped mounting plate (41), a third clamping block (49), a fourth mounting rod (410), a fourth clamping block (411), a fifth mounting rod (412), a fifth clamping block (413) and a connecting block (414); the third clamping block (49) is slidably connected to the third mounting rod (48); the third clamping block (49) is slidably connected to the fourth mounting rod (410); the bottom of the fourth mounting rod (410) is fixedly connected to the fourth clamping block (411) through the mounting block; the fourth clamping block (411) is horizontally arranged; the fifth clamping block (413) is slidably connected to the fourth clamping block (411); the fifth clamping block (413) is fixedly connected to the fifth mounting rod (412); the fifth mounting rod (412) is fixedly connected to the U-shaped mounting plate (41); the fill light (42) is fixedly installed on the left and right inner walls of the U-shaped mounting plate (41); and the fill light (42) is symmetrically arranged.

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