Bar code printing deviation correction device and method

Abstract

The invention discloses a bar code printing deviation correction device, which relates to the technical field of bar code printing deviation correction and comprises a machine body and a switching mechanism, and a hydraulic rod is mounted at the top of the machine body. According to the bar code printing deviation correction device and method, when the top of a cargo is printed with codes, the cargo located at the wrong printing position can be corrected, the cargo is placed on the conveying belt, the conveying belt can drive the cargo to move, the cargo is made to move to the bottom of the code spraying head, the servo motor drives the switching mechanism to move, and the code spraying head is started. When the transmission mechanism is driven to move, the limiting mechanism is driven to move upwards, at the moment, the goods stop moving when moving upwards to the highest position, deviation generated when the goods are printed is corrected through the positioning mechanism, after code spraying is completed, the servo motor rotates reversely and drives the goods subjected to code spraying to move downwards, and after the goods on the top of the support fall onto the conveying belt, the conveying belt is driven to move upwards. And the conveying belt moves again to convey the cargos subjected to code spraying.

Description

Technical Field

[0001] The present invention relates to the technical field of barcode printing deviation correction, and in particular to a barcode printing deviation correction device and method. Background Art

[0002] The barcode printing device is a device used to print barcode patterns on various materials. It can be divided into thermal printers, thermal transfer printers, inkjet printers and laser printers according to the printing method. When an inkjet printer prints a barcode on a packaging carton, the position of the carton needs to be corrected through a deviation correction device to prevent the inkjet printer from making printing errors. Therefore, the deviation correction device is used to correct printing errors of the inkjet printer.

[0003] For example, the printing device with classification number CN218020729U has the function of calibrating and correcting the anti-counterfeiting label. This scheme can calibrate the anti-counterfeiting label after it is offset through the coordination of the base, the protective shell, the calibration correction mechanism and the forward and reverse motors, thereby effectively avoiding the situation where the anti-counterfeiting label printing is unqualified due to the failure to calibrate the offset anti-counterfeiting label. This not only effectively avoids the waste of resources due to unqualified printing, but also reduces the trouble of the staff.

[0004] When the printing device in the above scheme prints labels on goods, in order to prevent deviation during printing, it is necessary to start the driving device to drive the gear to rotate, so that the gear engages with the two sets of positioning plates, and drives the two sets of positioning plates to contact the two sides of the goods, thereby positioning the goods, and then the inkjet print head is used to print the inkjet code on the bottom of the goods. However, this printing method can only print barcodes on the top of goods of the same height. When the heights of the goods printed continuously are different, the size and position of the font will change due to the different distances between the goods and the inkjet print head. In addition, when the distance between the nozzle and the product is too far, the printed characters will be scattered and the dot matrix will be incorrect. In order to prevent the barcode printed by the inkjet print head from deviation errors, the height of the print head needs to be frequently adjusted so that the bottom of the inkjet print head is at the same distance from the top of each group of goods. Not only is the operation cumbersome, but it also takes a lot of time. In addition, the existing printing device can only position the goods in one direction, and the goods will still be offset in the other direction, resulting in printing errors. Summary of the invention

[0005] The object of the present invention is to provide a barcode printing deviation correction device and method to solve the problem that the existing barcode printing deviation correction device proposed in the above background technology is difficult to correct the deviation of goods with different heights.

[0006] To achieve the above object, the present invention provides the following technical solution: a barcode printing deviation correction device, comprising a machine body and a switching mechanism, a hydraulic rod is installed on the top of the machine body, a spraying platform is fixedly connected to the bottom of the hydraulic rod, a conveyor belt is arranged inside the machine body, and two sets of fixed plates are arranged at the bottom of the spraying platform,

[0007] A servo motor is provided at the bottom of the conveyor belt, and a switching mechanism is provided at the output end of the servo motor, and the switching mechanism includes a connecting sleeve a provided at the output end of the servo motor, and a toggle plate is fixedly connected to the output end of the servo motor, and a toggle block a is abutted on one side of the toggle plate, and a sliding rod is fixedly connected on one side of the toggle block a, and a toggle block b is fixedly connected on one end of the sliding rod, and a rotating ring is fixedly connected to one side of the toggle block b and the toggle block a, and a moving ring is provided on one side of the rotating ring, and a push rod is abutted on one side of the moving ring through a ball bearing, and a connecting shaft a is fixedly connected to one side of the connecting sleeve a, and one end of the connecting shaft a A limiting mechanism is provided, which includes a connecting rod slidably connected to the inner side of a connecting shaft a through a ball bearing, a limiting plate is fixedly connected to the outer side of the connecting rod, a moving block is provided at the bottom of the limiting plate, a positioning mechanism for positioning goods is provided in the middle of the conveyor belt, the positioning mechanism includes a bracket provided in the middle of the conveyor belt, a rotating block is movably connected to the bracket around a rotating shaft, a bevel gear c is fixed to one side of the rotating block, a bevel gear d is meshedly connected to the outer side of the bevel gear c, a connecting shaft b is fixedly connected to the bottom of the bevel gear d, and a transmission mechanism for driving the positioning mechanism to move is provided at one end of the connecting rod.

[0008] Preferably, a raised block is fixedly connected to the outer side of the toggle plate, a fixed block is slidably connected to the outer side of the slide rod, one side of the fixed block is fixed to the connecting sleeve a, the slide rod has an arc-shaped shape, the outer sides of the toggle blocks a and b are both slidably connected to the connecting sleeve a, and the outer side of the rotating ring is movably connected to the inner side of the connecting sleeve a.

[0009] Preferably, multiple groups of wedge blocks a are fixedly connected to one side of the rotating ring, and the multiple groups of wedge blocks a are distributed at equal angles with respect to the central axis of the rotating ring, one side of the wedge block a is abutted against a wedge block b, and one side of the wedge block b is fixed to the moving ring.

[0010] Preferably, the bottom of the movable ring is slidably connected to the connecting sleeve a through a slider, one end of the push rod is slidably connected to the connecting sleeve a, the other end of the push rod is slidably connected to the fixed frame, a return spring a is sleeved on the middle part of the push rod, one end of the return spring a is abutted against the fixed frame, and one end of the push rod is wedge-shaped.

[0011] Preferably, one end of the connecting rod is connected to a return spring b, one end of the return spring b is in contact with the connecting shaft a, the limit plate is disc-shaped, the interior of the moving block is fixedly connected to a compression spring a, the top of the compression spring a is fixedly connected to a clamping block, the outer side of the moving block is slidably connected to a fixed frame, the two sides of the fixed frame are in contact with compression springs b, the top of the compression spring b is in contact with the fixed frame, and the outer side of the clamping block is in contact with the moving block.

[0012] Preferably, the transmission mechanism includes a bevel gear a fixedly connected to one end of a connecting rod, the outer side of the bevel gear a is meshingly connected to a bevel gear b, the bottom of the bevel gear b is fixedly connected to a connecting sleeve b, the outer side of the connecting sleeve b is movably connected to the body through a bearing and a mounting frame, and the internal thread of the connecting sleeve b is connected to a threaded rod.

[0013] Preferably, the bottom of the bracket is fixedly connected to the threaded rod, the top of the connecting shaft b is movably connected to the bracket through a bearing, one side of the bevel gear c is movably connected to the bracket through a rotating shaft, and a connecting frame is connected through the outer side of the connecting shaft b, and both ends of the connecting frame are fixed to the inner side of the body.

[0014] Preferably, a protrusion is fixedly connected to the inner side of the connecting frame, and the end of the protrusion is hemispherical, and a guide groove a for the protrusion to slide is provided inside the connecting shaft b, one end of the guide groove a is connected to a guide groove b, and the guide groove b is provided on the outer side of the connecting shaft b, the guide groove a is a spiral groove, and the guide groove b is a straight groove.

[0015] Preferably, one side of the rotating block is movably connected to a rotating frame via a rotating shaft, one end of the rotating frame is movably connected to a connecting roller via a rotating shaft, the inner side of the rotating frame is fixedly connected to a tension spring, one end of the tension spring is fixed to the rotating block, and the connecting rollers are provided in multiple groups and are distributed at equal angles with respect to the central axis of the threaded rod.

[0016] A barcode printing deviation correction method comprises the following steps:

[0017] S1. Feed the goods that need to be printed with barcodes onto the conveyor belt, and transport them to the bottom of the spraying terminal through the conveyor belt;

[0018] S2. The positioning mechanism is driven upward by the switching mechanism. The limit mechanism and the switching mechanism cooperate with each other to deliver goods of different heights to a fixed height. When the positioning mechanism moves upward, the goods are positioned to correct the deviation caused by barcode printing.

[0019] S3. Use the spraying terminal to spray the code on the top of the corrected goods.

[0020] Compared with the prior art, the beneficial effect of the present invention is that the bar code printing deviation correction device and method can correct the goods in the wrong printing position when coding the top of the goods, and by placing the goods on the conveyor belt, the conveyor belt will drive the goods to move, so that the goods move to the bottom of the spraying terminal, and the servo motor drives the switching mechanism to move, while driving the transmission mechanism to move, it drives the limit mechanism to move upward. At this time, the goods will stop moving when they move to the highest point, and the deviation generated when the goods are printed is corrected by the positioning mechanism. When the coding is completed, the servo motor will reverse and drive the goods that have been coded to move downward. When the goods on the top of the bracket falls onto the conveyor belt, the conveyor belt will move again to transport the goods that have been coded. In this way, through the above operation, goods at different heights can be positioned and sent to a position at the same distance from the spraying terminal, thereby correcting the position of the printing error. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional schematic diagram of the present invention;

[0022] Figure 2 It is a three-dimensional schematic diagram of the interior of the present invention;

[0023] Figure 3 It is a three-dimensional schematic diagram of the positioning mechanism of the present invention;

[0024] Figure 4 It is a three-dimensional cross-sectional schematic diagram of the fixing frame of the present invention;

[0025] Figure 5 It is a schematic cross-sectional front view of the fixing frame of the present invention;

[0026] Figure 6 It is a three-dimensional schematic diagram of the limiting mechanism of the present invention;

[0027] Figure 7 For the present invention Figure 5 A magnified schematic diagram of point A;

[0028] Figure 8 It is a three-dimensional schematic diagram of the connecting sleeve a of the present invention;

[0029] Fig. 9 It is a three-dimensional cross-sectional schematic diagram of the moving block of the present invention;

[0030] Fig.10 It is a three-dimensional cross-sectional schematic diagram of the bracket of the present invention.

[0031] In the figure: 1, machine body; 2, hydraulic rod; 3, spray terminal; 4, conveyor belt; 5, fixed plate; 6, switching mechanism; 601, connecting sleeve a; 602, toggle plate; 603, toggle block a; 604, slide rod; 605, toggle block b; 606, fixed block; 607, rotating ring; 608, wedge block a; 609, wedge block b; 610, moving ring; 611, push rod; 612, return spring a; 613, connecting shaft a; 614, fixed frame; 7, limit mechanism; 701, connecting rod; 702, return spring b; 703, compression spring a; 704, limit plate; 705, moving block; 706, compression spring b; 707, clamping block; 8, transmission mechanism; 801, bevel gear a; 802, bevel gear b; 803, connecting sleeve b; 804, threaded rod; 9, positioning mechanism; 901, bracket; 902, rotating block; 903, bevel gear c; 904, bevel gear d; 905, connecting shaft b; 906, connecting frame; 907, protrusion; 908, guide groove a; 909, guide groove b; 910, rotating frame; 911, tension spring; 912, connecting roller; 10, servo motor. DETAILED DESCRIPTION

[0032] 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.

[0033] See also Figure 1-Figure 10 The present invention provides a technical solution: a barcode printing deviation correction device, comprising a machine body 1 and a switching mechanism 6, a hydraulic rod 2 is installed on the top of the machine body 1, a spraying platform 3 is fixedly connected to the bottom of the hydraulic rod 2, a conveyor belt 4 is arranged on the inner side of the machine body 1, and two sets of fixed plates 5 are arranged at the bottom of the spraying platform 3,

[0034] A servo motor 10 is provided at the bottom of the conveyor belt 4, and a switching mechanism 6 is provided at the output end of the servo motor 10. The switching mechanism 6 includes a connecting sleeve a601 provided at the output end of the servo motor 10, and a toggle plate 602 is fixedly connected to the output end of the servo motor 10, and a toggle block a603 is abutted on one side of the toggle plate 602, and a slide bar 604 is fixedly connected to one side of the toggle block a603, and a toggle block b605 is fixedly connected to one end of the slide bar 604, and a rotating ring 607 is fixedly connected to the toggle block b605 and one side of the toggle block a603, and a moving ring 610 is provided on one side of the rotating ring 607, and a push rod 611 is abutted on one side of the moving ring 610 through a ball bearing, and a connecting shaft a613 is fixedly connected to one side of the connecting sleeve a601, and a connecting shaft a613 is fixedly connected to the connecting shaft a613. A limiting mechanism 7 is provided at one end, and the limiting mechanism 7 includes a connecting rod 701 slidably connected to the inner side of the connecting shaft a613 through a ball bearing, and the outer side of the connecting rod 701 is fixedly connected to a limiting plate 704, and a moving block 705 is provided at the bottom of the limiting plate 704. A positioning mechanism 9 for positioning goods is provided in the middle of the conveyor belt 4, and the positioning mechanism 9 includes a bracket 901 provided in the middle of the conveyor belt 4, and a rotating block 902 is movably connected to the bracket 901 around the rotating block 902 through a rotating shaft, and a bevel gear c903 is fixed to one side of the rotating block 902, and the outer side of the bevel gear c903 is meshedly connected to a bevel gear d904, and the bottom of the bevel gear d904 is fixedly connected to a connecting shaft b905, and a transmission mechanism 8 for driving the positioning mechanism 9 to move is provided at one end of the connecting rod 701;

[0035] The outer side of the toggle plate 602 is fixedly connected with a raised block, the outer side of the slide bar 604 is slidably connected with a fixed block 606, one side of the fixed block 606 is fixed to the connecting sleeve a601, the outer side of the slide bar 604 is arc-shaped, the outer sides of the toggle block a603 and the toggle block b605 are both slidably connected to the connecting sleeve a601, and the outer side of the rotating ring 607 is movably connected to the inner side of the connecting sleeve a601; one side of the rotating ring 607 is fixedly connected with multiple groups of wedge blocks a608, and the multiple groups of wedge blocks a608 are distributed at equal angles with respect to the central axis of the rotating ring 607, one side of the wedge block a608 is abutted with a wedge block b609, and the wedge block b609 One side is fixed to the moving ring 610; the bottom of the moving ring 610 is slidably connected to the connecting sleeve a601 through a slider, one end of the push rod 611 is slidably connected to the connecting sleeve a601, and the other end of the push rod 611 is slidably connected to the fixing frame 614. A return spring a612 is sleeved on the middle part of the push rod 611, and one end of the return spring a612 abuts against the fixing frame 614. One end of the push rod 611 is wedge-shaped, and a through hole matching the slide rod 604 is opened inside the fixing block 606. The slide rod 604 and the fixing block 606 constitute a sliding structure, and the push rod 611, the return spring a612 and the fixing frame 614 constitute an elastic telescopic structure;

[0036] One end of the connecting rod 701 is connected to a return spring b702, one end of the return spring b702 is in contact with the connecting shaft a613, the limiting plate 704 is in the shape of a disc, the interior of the moving block 705 is fixedly connected with a compression spring a703, the top of the compression spring a703 is fixedly connected with a clamping block 707, the outer side of the moving block 705 is slidably connected with the fixed frame 614, the two sides of the fixed frame 614 are in contact with compression springs b706, the top of the compression spring b706 is in contact with the fixed frame 614, the outer side of the clamping block 707 is in contact with the moving block 705, the bottom of the moving block 705 is provided with an oblique groove, the interior of the moving block 705 is provided with a sliding groove matching the clamping block 707, and the clamping block 707 is provided with a plurality of movable blocks. 07 and the moving block 705 form a sliding structure, the outer shape of the connecting rod 701 is rectangular, and a rectangular groove matching the connecting rod 701 is provided inside the connecting shaft a613; the transmission mechanism 8 includes a bevel gear a801 fixedly connected to one end of the connecting rod 701, the outer side of the bevel gear a801 is meshingly connected with a bevel gear b802, the bottom of the bevel gear b802 is fixedly connected with a connecting sleeve b803, the outer side of the connecting sleeve b803 is movably connected to the body 1 through a bearing and a mounting frame, the inner thread of the connecting sleeve b803 is connected with a threaded rod 804, the connecting sleeve b803 and the threaded rod 804 form a threaded transmission structure, and the bevel gear a801 and the bevel gear b802 form a meshing transmission structure;

[0037] The bottom of the bracket 901 is fixedly connected to the threaded rod 804, the top of the connecting shaft b905 is movably connected to the bracket 901 through a bearing, one side of the bevel gear c903 is movably connected to the bracket 901 through a rotating shaft, and the outer side of the connecting shaft b905 is connected with a connecting frame 906, and the two ends of the connecting frame 906 are fixed to the inner side of the body 1; the inner side of the connecting frame 906 is fixedly connected with a protrusion 907, and the end of the protrusion 907 is hemispherical, and the interior of the connecting shaft b905 is provided with a guide groove a908 for the protrusion 907 to slide, and one end of the guide groove a908 is connected to a guide groove b909, and the guide groove b909 is provided on the outer side of the connecting shaft b905. On the side, the guide groove a908 is a spiral groove, and the guide groove b909 is a straight groove; one side of the rotating block 902 is movably connected to a rotating frame 910 through a rotating shaft, and one end of the rotating frame 910 is movably connected to a connecting roller 912 through a rotating shaft, and the inner side of the rotating frame 910 is fixedly connected with a tension spring 911, and one end of the tension spring 911 is fixed to the rotating block 902. There are multiple groups of connecting rollers 912, and they are distributed at equal angles with respect to the central axis of the threaded rod 804. The rotating block 902 forms a rotating structure with the rotating frame 910 through the rotating shaft, the bevel gear c903 and the bevel gear d904 form an engaging transmission structure, and the connecting shaft b905 and the connecting frame 906 form a sliding structure.

[0038] In specific implementation, the barcode printing deviation correction device and method can correct the goods in the wrong printing position when coding the top of the goods. By placing the goods on the conveyor belt 4, the conveyor belt 4 will drive the goods to move and move the goods to the bottom of the spray terminal 3. At this time, the photoelectric sensor on the top of the body 1 will detect the goods and transmit the signal to the PLC controller to control the conveyor belt 4 to stop moving and start the servo motor 10 to rotate. The servo motor 10 will rotate forward and rotate a fixed number of circles. The toggle plate 602 at one end of the servo motor 10 will rotate with it and contact the toggle block a603 through the outer protrusion block, thereby pushing the toggle block a60 3 moves, the toggle block a603 will slide inside the fixed block 606 through the sliding rod 604 on one side, and drive the toggle block b605 to move, and the rotating ring 607 fixed on the side of the toggle block b605 will also rotate accordingly, and through the multiple groups of wedge blocks a608 on one side, the multiple groups of wedge blocks b609 are squeezed to move, so that the moving ring 610 on the side of the wedge block b609 also starts to move, and when the moving ring 610 moves, it will push the push rod 611 on one side to slide in the fixed frame 614 and trigger the limit mechanism 7, and the push rod 611 will push the moving block 705 to move upward through the wedge groove at one end, so that the card block 707 on the top of the moving block 705 moves to one side of the limit plate 704;

[0039] Since the toggle plate 602 pushes the toggle block a603 to fit tightly with the fixed block 606 at this time, the connecting sleeve a601 fixed on one side of the fixed block 606 can be driven to rotate, and the connecting shaft a613 on one side of the connecting sleeve a601 will also rotate accordingly, and drive the rectangular connecting rod 701 to rotate through the internal rectangular groove. When the connecting rod 701 rotates, it will drive the transmission mechanism 8 to move, and the bevel gear a801 in the transmission mechanism 8 will rotate with the connecting rod 701 and mesh with the outer bevel gear b802, thereby driving the bevel gear b802 and the connecting sleeve b803 at its bottom to rotate. When the connecting sleeve b803 rotates, it will perform threaded transmission with the threaded rod 804, thereby driving the threaded rod 804 to move upward, and the positioning mechanism 9 at the top of the threaded rod 804 will also move accordingly. When the connecting shaft b905 at the end of the bracket 901 moves upward, it will slide inside the connecting frame 906, and the protrusion 907 inside the connecting frame 906 will move on the connecting shaft b905. The bevel gear d904 fixed on the top of the connecting shaft b905 will also rotate and mesh with the bevel gear c903 on the outside, so that the bevel gear c903 starts to rotate. The bevel gear c903 will drive the rotating block 902 to rotate, so that the connecting roller 912 at one end of the rotating block 902 contacts the outer side of the goods on the top of the bracket 901. Since there are four groups of connecting rollers 912 and their transmission parts, the four groups of connecting rollers 912 will rotate at the same time and push the goods around to complete the positioning of the goods, thereby correcting the deviation caused by the printing of the goods. When the goods cannot move, the rotating frame 910 will rotate and pull the tension spring 911 to stretch, so as to adapt to the shape of the goods. When the protrusion 907 moves to the guide groove b909, the connecting shaft b905 will not rotate. At this time, the position of the connecting roller 912 will be fixed to limit the moving goods.

[0040] Since the servo motor 10 is still in a rotating state, the bracket 901 will drive the goods to continue to move up. When the top of the goods contacts the fixed plate 5, the bracket 901 will not be able to move up. Therefore, the resistance when the bevel gear b802 and the bevel gear a801 are meshed will also increase. At this time, the bevel gear b802 will produce a phenomenon of tooth slip with the bevel gear a801 through the outer oblique tooth surface when rotating. The bevel gear a801 will push the bevel gear b802 to move, so that the two are out of meshing state. The connecting rod 701 on one side of the bevel gear a801 will slide in the connecting shaft a613 and squeeze the return spring b702 at one end, and the limit plate 704 on the outside of the connecting rod 701 will squeeze the wedge surface of the block 707 when moving, so that the block 707 will compress the compression spring a70 at the bottom. 3 is squeezed. When the limit plate 704 passes over the block 707, the compression spring a703 pushes the block 707 to move upward, thereby limiting the limit plate 704. Since the limit plate 704 cannot move at this time, the bevel gear a801 will also remain in a state of not meshing with the bevel gear b802, reducing the wear caused by the bevel gear a801 and the bevel gear b802 when the gears slide, and preventing the connecting sleeve b803 and the threaded rod 804 from being in a state of continuous thread transmission, causing continuous squeezing of the top goods. In this way, the switching mechanism 6 and the limiting mechanism 7 can cooperate to deliver goods of different heights to the position with the same distance from the spray terminal 3, thereby ensuring the clarity of the barcode when the spray terminal 3 prints the barcode, and correcting the wrong spraying position of goods of different heights when spraying the code;

[0041] When the inkjet printing is completed, the servo motor 10 will reverse and drive the toggle plate 602 to reverse as well. At this time, the raised block on the outside of the toggle plate 602 will contact the toggle block b605, thereby driving the rotating ring 607 on one side of the toggle block b605 to reverse, so that the wedge block a608 on one side of the rotating ring 607 is separated from the squeeze of the wedge block b609. At this time, the push rod 611 that has lost the squeezing force will be pushed back by the reset spring a612 to cancel the squeezing of the moving block 705. The compression spring b706 on the outside of the moving block 705 will also reset, pushing the moving block 705 to move downward, so that the card block 707 cancels the squeeze on the limit The positioning plate 704 is limited, and the reset spring b702 in the connecting shaft a613 will push the connecting rod 701 to move, and drive the bevel gear a801 to re-engage with the bevel gear b802. The bevel gear b802 will reverse and threadedly transmit with the threaded rod 804 again, driving the bracket 901 to move downward. When the goods on the top of the bracket 901 fall onto the conveyor belt 4, the conveyor belt 4 will move again to transport the goods that have been coded. In this way, the above operation can be used to locate the goods at different heights and send them to the position at the same distance from the inkjet terminal 3, so as to correct the position of the printing error.

[0042] A barcode printing deviation correction method comprises the following steps:

[0043] S1, the goods to be printed with barcodes are fed into the conveyor belt 4, and transported to the bottom of the spraying terminal 3 through the conveyor belt 4;

[0044] S2. The positioning mechanism 9 is driven upward by the switching mechanism 6. The limiting mechanism 7 cooperates with the switching mechanism 6 to deliver goods of different heights to a fixed height. When the positioning mechanism 9 moves upward, the goods are positioned to correct the deviation caused by barcode printing.

[0045] S3, spray code on the top of the corrected goods through spray terminal 3.

[0046] To sum up, the goods are sent to the conveyor belt 4, the conveyor belt 4 will send the goods to the bottom of the spray terminal 3, and through the cooperation of the switching mechanism 6, the limiting mechanism 7 and the transmission mechanism 8, the top of different goods will be sent to a fixed height, so as to correct the wrong printing position, and then the barcode will be printed on the top of the goods through the spray terminal 3. The contents not described in detail in this specification belong to the existing technology known to professional and technical personnel in this field.

[0047] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A barcode printing deviation correction device, comprising a machine body (1) and a switching mechanism (6), wherein a hydraulic rod (2) is installed on the top of the machine body (1), a spraying platform (3) is fixedly connected to the bottom of the hydraulic rod (2), a conveyor belt (4) is arranged on the inner side of the machine body (1), and two sets of fixed plates (5) are arranged at the bottom of the spraying platform (3), characterized in that: A servo motor (10) is arranged at the bottom of the conveyor belt (4); a switching mechanism (6) is arranged at the output end of the servo motor (10); the switching mechanism (6) comprises a connecting sleeve a (601) arranged at the output end of the servo motor (10); a toggle plate (602) is fixedly connected to the output end of the servo motor (10); a toggle block a (603) is abutted on one side of the toggle plate (602); a sliding rod (603) is fixedly connected on one side of the toggle block a (603); 604), one end of the sliding rod (604) is fixedly connected to a toggle block b (605), one side of the toggle block b (605) and the toggle block a (603) are both fixedly connected to a rotating ring (607), one side of the rotating ring (607) is provided with a moving ring (610), one side of the moving ring (610) is abutted against a push rod (611) via a ball, one side of the connecting sleeve a (601) is fixedly connected to a connecting shaft a (613), and the connecting shaft a (61 A limiting mechanism (7) is provided at one end of the conveyor belt (3), the limiting mechanism (7) comprising a connecting rod (701) slidably connected to the inner side of the connecting shaft a (613) through a ball bearing, the outer side of the connecting rod (701) is fixedly connected to a limiting plate (704), the bottom of the limiting plate (704) is provided with a moving block (705), and a positioning mechanism (9) for positioning goods is provided in the middle of the conveyor belt (4), the positioning mechanism (9) comprising a positioning mechanism (9) provided in the middle of the conveyor belt (4) The bracket (901) is provided with a rotating block (902) movably connected to the bracket (901) around a rotating shaft, a bevel gear c (903) is fixed to one side of the rotating block (902), a bevel gear d (904) is meshedly connected to the outer side of the bevel gear c (903), a connecting shaft b (905) is fixedly connected to the bottom of the bevel gear d (904), and a transmission mechanism (8) for driving the positioning mechanism (9) to move is provided at one end of the connecting rod (701).

2. A barcode printing deviation correction device according to claim 1, characterized in that: The outer side of the toggle plate (602) is fixedly connected with a protruding block, the outer side of the slide rod (604) is slidably connected with a fixed block (606), one side of the fixed block (606) is fixed to the connecting sleeve a (601), the outer shape of the slide rod (604) is arc-shaped, the outer sides of the toggle block a (603) and the toggle block b (605) are both slidably connected to the connecting sleeve a (601), and the outer side of the rotating ring (607) is movably connected to the inner side of the connecting sleeve a (601).

3. A barcode printing deviation correction device according to claim 1, characterized in that: One side of the rotating ring (607) is fixedly connected to multiple groups of wedge blocks a (608), and the multiple groups of wedge blocks a (608) are distributed at equal angles with respect to the central axis of the rotating ring (607), one side of the wedge block a (608) is abutted against a wedge block b (609), and one side of the wedge block b (609) is fixed to the moving ring (610).

4. A barcode printing deviation correction device according to claim 1, characterized in that: The bottom of the movable ring (610) is slidably connected to the connecting sleeve a (601) via a slider, one end of the push rod (611) is slidably connected to the connecting sleeve a (601), the other end of the push rod (611) is slidably connected to the fixing frame (614), a return spring a (612) is sleeved in the middle of the push rod (611), one end of the return spring a (612) is in contact with the fixing frame (614), and one end of the push rod (611) is wedge-shaped.

5. The barcode printing deviation correction device according to claim 1, characterized in that: One end of the connecting rod (701) is connected to a return spring b (702), one end of the return spring b (702) is in contact with the connecting shaft a (613), the limiting plate (704) is disc-shaped, the interior of the moving block (705) is fixedly connected to a compression spring a (703), the top of the compression spring a (703) is fixedly connected to a clamping block (707), the outer side of the moving block (705) is slidably connected to the fixed frame (614), the two sides of the fixed frame (614) are in contact with compression springs b (706), the top of the compression spring b (706) is in contact with the fixed frame (614), and the outer side of the clamping block (707) is in contact with the moving block (705).

6. A barcode printing deviation correction device according to claim 1, characterized in that: The transmission mechanism (8) comprises a bevel gear a (801) fixedly connected to one end of a connecting rod (701); the outer side of the bevel gear a (801) is meshingly connected to a bevel gear b (802); the bottom of the bevel gear b (802) is fixedly connected to a connecting sleeve b (803); the outer side of the connecting sleeve b (803) is movably connected to the machine body (1) via a bearing and a mounting frame; the inner part of the connecting sleeve b (803) is threadedly connected to a threaded rod (804).

7. A barcode printing deviation correction device according to claim 1, characterized in that: The bottom of the bracket (901) is fixedly connected to the threaded rod (804), the top of the connecting shaft b (905) is movably connected to the bracket (901) via a bearing, one side of the bevel gear c (903) is movably connected to the bracket (901) via a rotating shaft, and a connecting frame (906) is connected through the outer side of the connecting shaft b (905), and both ends of the connecting frame (906) are fixed to the inner side of the machine body (1).

8. A barcode printing deviation correction device according to claim 7, characterized in that: A protrusion (907) is fixedly connected to the inner side of the connecting frame (906), and the end of the protrusion (907) is hemispherical. A guide groove a (908) for the protrusion (907) to slide is provided inside the connecting shaft b (905). One end of the guide groove a (908) is connected to a guide groove b (909). The guide groove b (909) is provided on the outer side of the connecting shaft b (905). The guide groove a (908) is a spiral groove, and the guide groove b (909) is a straight groove.

9. A barcode printing deviation correction device according to claim 1, characterized in that: One side of the rotating block (902) is movably connected to a rotating frame (910) via a rotating shaft, one end of the rotating frame (910) is movably connected to a connecting roller (912) via a rotating shaft, the inner side of the rotating frame (910) is fixedly connected to a tension spring (911), one end of the tension spring (911) is fixed to the rotating block (902), and a plurality of connecting rollers (912) are provided and are distributed at equal angles with respect to the central axis of the threaded rod (804).

10. A barcode printing deviation correction method, using the barcode printing deviation correction device described in claim 1, characterized in that: The following steps are involved: S1, feeding the goods to be printed with barcodes onto the conveyor belt (4), and conveying them to the bottom of the spraying terminal (3) through the conveyor belt (4); S2. The switching mechanism (6) drives the positioning mechanism (9) to move upward. The limiting mechanism (7) cooperates with the switching mechanism (6) to deliver goods of different heights to a fixed height. When the positioning mechanism (9) moves upward, the goods are positioned to correct the deviation caused by barcode printing. S3. The top of the corrected goods is sprayed with codes through the spraying terminal (3).

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