A QR code inkjet printing device for printing presses

Abstract

The utility model discloses a two-dimensional code inkjet device for a printing machine, comprising a lifting beam which can be moved in a vertical direction on a gantry bracket, and a plurality of two-dimensional code spraying modules arranged side by side on the lifting beam; a linear guide rail is provided on the lifting beam along its length direction, and a horizontal slide plate which is slidably connected to the linear guide rail by a slider is the same as the number of the two-dimensional code spraying modules; a vertical fine-tuning frame is fixedly connected to the front side end of the horizontal slide plate, and a vertical slide plate which can slide in a vertical direction is provided on the vertical fine-tuning frame, and the two-dimensional code spraying modules are all fixed on the vertical slide plates corresponding thereto; a nozzle at the end of the two-dimensional code spraying module faces vertically downward, and an infrared positioning lamp is fixedly connected to one side of the nozzle; a photoelectric positioning mechanism is provided on the two side beams of the gantry bracket below the nozzle; the utility model has the advantages of simple structure, low cost, convenient adjustment of the two-dimensional code spraying position, high precision of the two-dimensional code spraying position, and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of printing, in particular to a two-dimensional code spraying device for a printing machine. Background Art

[0002] With the continuous development of product packaging, more and more products are sprayed with QR codes. The QR code can contain various types of information and is used for promotional activities or product anti-counterfeiting. Patent publication number CN212267022U discloses an integrated device for spraying and detecting QR codes on printed materials, and discloses a device for spraying QR codes on packaged printed materials. The existing packaged printed materials have a large number of horizontal rows during production, and multiple nozzles are required. When replacing packaging film products of different thicknesses or needing to rearrange the QR code spraying position, there are problems such as inconvenient adjustment of the QR code spraying position, low precision of the QR code spraying position, complex equipment structure, and high equipment cost. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide a two-dimensional code inkjet device for a printing machine. The device has a simple structure, low equipment cost, convenient adjustment of the two-dimensional code spraying position, and high precision of the two-dimensional code spraying position, which can effectively solve the problems in the background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a two-dimensional code inkjet device for a printing machine, comprising a gantry bracket and a lifting beam, the lifting beam is provided with a plurality of two-dimensional code spraying modules arranged side by side, the lifting beam is slidably connected between the two side beams of the gantry bracket, and the top beam of the gantry bracket is provided with a lifting drive mechanism that can drive the lifting beam to move in the vertical direction; a linear guide rail is provided on the lifting beam along its length direction, and a horizontal slide plate with the same number as the two-dimensional code spraying modules is slidably connected to the linear guide rail through a slider; a brake groove is provided on one side wall of the lifting beam along its length direction, and a double-rod cylinder is fixedly connected at the position corresponding to the brake groove on the horizontal slide plate, and the two ends of the double-rod cylinder are The telescopic ends on both sides are located in the brake groove, the telescopic ends on both sides of the double-rod cylinder are arranged back to back and perpendicular to the opening direction of the brake groove, and the telescopic ends of the double-rod cylinder are fixedly connected with brake pads; the front side end of the horizontal slide is fixedly connected with a vertical fine-tuning frame, and the vertical fine-tuning frame is provided with a vertical slide that can slide in the vertical direction, and the QR code spraying modules are fixed on the corresponding vertical slides; the nozzles at the end of the QR code spraying module are vertically facing downward, and one side of the nozzle is fixedly connected with an infrared positioning lamp; photoelectric positioning mechanisms are provided on the two side beams of the gantry bracket below the nozzles, and the photoelectric positioning mechanism includes a mounting frame, which is detachably fixed to the side beams of the gantry bracket by bolts, and the mounting frame is connected with a photoelectric switch.

[0005] Furthermore, the lifting beam is a U-shaped plate structure with an opening toward the front, the linear guide rail is arranged in the opening of the lifting beam, and the transverse slide is slidably nested in the opening of the lifting beam; the brake groove is opened at the front side end of the web of the lifting beam.

[0006] Furthermore, a lateral fine-tuning mechanism is provided between the lifting beam and the vertical fine-tuning frame, and the lateral fine-tuning mechanism includes a bevel rack provided at the top end of the lifting beam along its length direction. A vertically arranged rotating shaft is rotatably connected to the back plate of the vertical fine-tuning frame through a connecting ear plate, a handle is provided at the top end of the rotating shaft, and a gear meshing with the bevel rack is fixedly connected to the rotating shaft.

[0007] Furthermore, the lifting drive mechanism includes a dual-axis motor arranged on the top beam of the gantry bracket, and two-axis steering boxes are fixedly provided at both ends of the gantry bracket. The output shaft of the dual-axis motor is connected to the input shaft of the corresponding two-axis steering box through a coupling and a transmission shaft. The output shaft of the two-axis steering box is vertically downward and fixedly connected to a screw A, which is rotatably connected to the side beam of the gantry bracket, and the two ends of the lifting beam are respectively rollingly connected to the screw A on both sides.

[0008] Furthermore, the front side end of the vertical fine-tuning frame is rotatably connected to a screw B via a connecting ear plate, and the front side end of the vertical fine-tuning frame is also provided with a vertically arranged linear guide rail 2, and a slider 2 that slides with the linear guide rail 2 is fixedly connected to the back plate of the vertical slide plate, and the slider 2 is rollingly connected to the screw B; the top end of the screw B is fixedly connected to a handle 1.

[0009] Furthermore, the mounting frame is an inverted L-shaped plate structure, and a linear guide rail three is provided in the vertical direction along the vertical plate of the mounting frame, and a slider three is slidably connected to the linear guide rail three, and the photoelectric switch is horizontally fixed on the slider three; an adjusting screw is threadedly connected to the top plate of the mounting frame, and the end of the adjusting screw passes through the top plate of the mounting frame, and the slider three is rollingly connected to the adjusting screw, and locking nuts are connected to the upper and lower ends of the adjusting screw located on the top plate of the mounting frame.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows: the two-dimensional code inkjet device for the printing machine realizes rapid and high-precision adjustment of the two-dimensional code spraying module in the lateral position through a lateral slider that can move along the lifting beam and a lateral fine-tuning mechanism, and cooperates with the infrared positioning lamp to further improve the accuracy of the lateral adjustment of the two-dimensional code spraying module, and the accuracy of the two-dimensional code spraying position is high; the descending height of the two-dimensional code spraying module can be fine-tuned by rotating the adjusting screw to adapt to the accuracy and clarity of the two-dimensional code spraying position of packaging films of different thicknesses; the two-dimensional code inkjet device has a simple structure, low equipment cost, and convenient adjustment of the two-dimensional code spraying position. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1It is a schematic diagram of the structure of the utility model;

[0012] Figure 2 This is a schematic diagram of the front structure of the utility model;

[0013] Figure 3 This is a schematic diagram of the sliding connection structure between the lifting beam and the QR code spraying module of the utility model;

[0014] Figure 4 This is a schematic diagram of the sliding cooperation structure between the lifting beam and the horizontal slide plate of the utility model;

[0015] Figure 5 This is a partial enlarged view of the vertical fine-tuning frame of the utility model;

[0016] Figure 6 This is a schematic diagram of the structure of the photoelectric positioning mechanism of the utility model.

[0017] In the figure: 1. gantry bracket; 2. lifting drive mechanism; 21. dual-axis motor; 22. two-axis steering box; 23. transmission shaft; 24. screw A; 3. lifting beam; 31. linear guide rail 1; 32. brake groove; 4. horizontal slide plate; 41. slide block 1; 42. double-rod cylinder; 421. brake pad; 5. vertical fine-tuning frame; 51. screw B; 52. linear guide rail 2; 53. slide block 2; 54. vertical slide plate; 6. QR code spraying module; 61. nozzle; 7. infrared positioning lamp; 8. photoelectric positioning mechanism; 81. mounting frame; 82. linear guide rail 3; 83. slide block 3; 84. adjusting screw; 85. photoelectric switch; 86. locking nut; 9. horizontal fine-tuning mechanism; 91. rotating shaft; 92. gear; 93. bevel rack. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example

[0019] See also Figure 1-6 The utility model provides a technical solution: a two-dimensional code inkjet device for a printing machine, comprising a gantry support 1 and a lifting beam 3, wherein the lifting beam 3 is a U-shaped plate structure with an opening facing the front side; a plurality of two-dimensional code spraying modules 6 arranged side by side are arranged on the lifting beam 3, the lifting beam 3 is slidably connected between the two side beams of the gantry support 1, and a lifting drive mechanism 2 that can drive the lifting beam 3 to move in the vertical direction is provided on the top beam of the gantry support 1;

[0020] The lifting drive mechanism 2 includes a double-axis motor 21 arranged on the top beam of the gantry bracket 1, and two-axis steering boxes 22 are fixedly provided at both ends of the gantry bracket 1. The output shaft of the double-axis motor 21 is connected to the input shaft of the corresponding two-axis steering box 22 through a coupling and a transmission shaft 23. The output shaft of the two-axis steering box 22 is vertically downward and fixedly connected to a lead screw A24, which is rotatably connected to the side beam of the gantry bracket 1, and the two ends of the lifting beam 3 are respectively connected to the lead screw A24 on both sides in a rolling manner;

[0021] A linear guide rail 31 is provided in the opening of the lifting beam 3 along its length direction, and the linear guide rail 31 is slidably connected with the same number of transverse slides 4 as the two-dimensional code spraying module 6 through a slider 41, and the transverse slide 4 is slidably nested in the opening of the lifting beam 3; a brake groove 32 is opened at the front side end of the web of the lifting beam 3 along its length direction, and a double-rod cylinder 42 is fixedly connected at the position corresponding to the brake groove 32 on the transverse slide 4, and the telescopic ends on both sides of the double-rod cylinder 42 are both located in the brake groove 32, and the telescopic ends on both sides of the double-rod cylinder 42 are arranged opposite to each other and are perpendicular to the opening direction of the brake groove 32, and the telescopic ends of the double-rod cylinder 42 are fixedly connected with brake pads 421;

[0022] The front side end of the horizontal slide 4 is fixedly connected to a vertical fine-tuning frame 5, and the front side end of the vertical fine-tuning frame 5 is rotatably connected to a lead screw B51 through a connecting ear plate, and a handle 1 is fixedly connected to the top of the lead screw B51. The front side end of the vertical fine-tuning frame 5 is also provided with a vertically arranged linear guide rail 2 52, and a vertical slide 54 is slidably connected to the linear guide rail 2 52 through a slider 2 53, and the slider 2 53 is rollingly connected to the lead screw B51; and the two-dimensional code spraying modules 6 are all fixed on the vertical slides 54 corresponding thereto;

[0023] The nozzle 61 at the end of the two-dimensional code spraying module 6 is vertically downward, and an infrared positioning lamp 7 is fixedly connected to one side of the nozzle 61; a photoelectric positioning mechanism 8 is provided below the nozzle 61 on the two side beams of the gantry bracket 1, and the photoelectric positioning mechanism 8 includes a mounting frame 81, which is detachably fixed to the side beam of the gantry bracket 1 by bolts, and a photoelectric switch 85 is connected to the mounting frame 81, and the photoelectric switch 85 is used to sense the nozzle 61, so as to control the distance between the nozzle 61 and the packaging film; the mounting frame 81 It is an inverted L-shaped plate structure, and a linear guide rail 3 82 is provided in the vertical direction along the vertical plate of the mounting frame 81, and a slider 3 83 is slidably connected to the linear guide rail 3 82, and the photoelectric switch 85 is horizontally fixed on the slider 3 83; an adjusting screw 84 is threadedly connected to the top plate of the mounting frame 81, and the end of the adjusting screw 84 passes through the top plate of the mounting frame 81, and the slider 3 83 is rollingly connected to the adjusting screw 84, and the upper and lower ends of the adjusting screw 84 located on the top plate of the mounting frame 81 are connected with locking nuts 86.

[0024] A lateral fine-tuning mechanism 9 is provided between the lifting beam 3 and the vertical fine-tuning frame 5. The lateral fine-tuning mechanism 9 includes a bevel rack 93 provided at the top end of the lifting beam 3 along its length direction. A vertically arranged rotating shaft 91 is rotatably connected to the back plate of the vertical fine-tuning frame 5 through a connecting ear plate. A handle 2 is provided at the top end of the rotating shaft 91, and a gear 92 meshing with the bevel rack 93 is fixedly connected to the rotating shaft 91.

[0025] The two-axle steering box 22 is a spiral bevel gear steering box.

[0026] Working principle:

[0027] When the two-dimensional code spraying is working, the transmission shaft 23 is driven to rotate by the double-axis motor 21, and the transmission shaft 23 drives the lead screw A24 to rotate through the two-axis steering box 22, so that the lifting beam 3 drives the two-dimensional code spraying module 6 to descend. When the photoelectric switch 85 senses the nozzle 61, the double-axis motor 21 stops working, and the packaging film is sprayed with the two-dimensional code through the nozzle 61; when the equipment needs to be maintained, the lifting beam 3 and the two-dimensional code spraying module 6 are driven to rise by the double-axis motor 21; when the spacing of the two-dimensional code spraying module 6 needs to be adjusted, the brake pad 421 is retracted by the telescopic end of the double-rod cylinder 42 to make it The contact between the brake groove 32 and the side wall is broken, and the vertical fine-tuning frame 5 is pushed to make the horizontal slide plate 4 and the two-dimensional code spraying module 6 slide quickly along the linear guide rail 31. The infrared positioning lamp 7 irradiates the packaging film to form a rectangular frame, and the rectangular frame irradiated by the infrared positioning lamp 7 on the packaging film corresponds to the position of the two-dimensional code sprayed on the packaging film by the nozzle 61. The adjustment position of the two-dimensional code spraying module 6 is determined by observing the rectangular frame irradiated by the infrared positioning lamp 7 on the packaging film. In order to improve the accuracy of the lateral adjustment of the two-dimensional code spraying module 6, the vertical fine-tuning frame 5 is pushed to determine the two-dimensional code spraying After the approximate position of the module 6 is determined, the position of the two-dimensional code spraying module 6 is adjusted with high precision through the lateral fine-tuning mechanism 9, specifically, the gear 92 is meshed and rotated with the bevel rack 93 by rotating the rotating shaft 91, so that the lateral slide plate 4 and the two-dimensional code spraying module 6 are driven to slide slowly along the linear guide rail 31, thereby improving the accuracy of the lateral adjustment of the two-dimensional code spraying module 6; when the lateral position of the two-dimensional code spraying module 6 is adjusted, the telescopic end of the double-rod cylinder 42 pushes the brake plate 421 to press it against the side wall of the brake groove 32, locks the lateral slide plate 4, and limits the vertical fine-tuning frame 5 And the lateral movement of the two-dimensional code spraying module 6; when the two-dimensional code spraying module 6 needs to be fine-tuned vertically, the vertical slide plate 54 and the two-dimensional code spraying module 6 are moved vertically along the linear guide rail 2 52 by rotating the screw B51; when the descent height of the two-dimensional code spraying module 6 needs to be fine-tuned when replacing packaging films of different thicknesses, the locking nut 86 is loosened and the adjusting screw 84 is rotated to make the slider three 83 and the photoelectric switch 85 slide vertically along the linear guide rail three 82, thereby fine-tuning the height of the photoelectric switch 85 in the vertical direction, and realizing fine-tuning of the descent height of the two-dimensional code spraying module 6.

[0028] The two-dimensional code inkjet printing device for a printing machine disclosed in the present embodiment realizes rapid and high-precision adjustment of the two-dimensional code spraying module 6 in the lateral position through a lateral slide plate 4 movable along the lifting beam 3 and a lateral fine-tuning mechanism 9, and cooperates with an infrared positioning lamp 7 to further improve the accuracy of the lateral adjustment of the two-dimensional code spraying module 6, and the accuracy of the two-dimensional code spraying position is high; the descending height of the two-dimensional code spraying module 6 can be fine-tuned by rotating the adjusting screw 84 to adapt to the accuracy and clarity of the two-dimensional code spraying position of packaging films of different thicknesses; the two-dimensional code inkjet printing device has a simple structure and the two-dimensional code spraying position is easy to adjust.

[0029] 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 two-dimensional code spraying device for a printing machine, comprising a gantry support and a lifting beam, wherein a plurality of two-dimensional code spraying modules arranged side by side are arranged on the lifting beam, characterized in that: The lifting beam is slidably connected between the two side beams of the gantry bracket, and a lifting drive mechanism that can drive the lifting beam to move in the vertical direction is provided on the top beam of the gantry bracket; a linear guide rail is provided on the lifting beam along its length direction, and a horizontal slide plate with the same number as the QR code spraying module is slidably connected to the linear guide rail through a slider; a brake groove is opened on one side wall of the lifting beam along its length direction, and a double-rod cylinder is fixedly connected at the position corresponding to the brake groove on the horizontal slide plate, and the telescopic ends on both sides of the double-rod cylinder are both located in the brake groove, and the telescopic ends on both sides of the double-rod cylinder are arranged back to back and are both aligned with the brake groove. The opening directions are perpendicular, and the telescopic ends of the double-rod cylinders are fixedly connected with brake pads; the front side end of the horizontal slide is fixedly connected with a vertical fine-tuning frame, and the vertical fine-tuning frame is provided with a vertical slide that can slide in the vertical direction, and the QR code spraying modules are fixed on the corresponding vertical slides; the nozzles at the end of the QR code spraying modules are vertically facing downward, and one side of the nozzles is fixedly connected with an infrared positioning lamp; photoelectric positioning mechanisms are provided on the two side beams of the gantry bracket below the nozzles, and the photoelectric positioning mechanism includes a mounting frame, which is detachably fixed to the side beams of the gantry bracket by bolts, and the mounting frame is connected with a photoelectric switch.

2. The two-dimensional code inkjet device for a printing machine according to claim 1, characterized in that: The lifting beam is a U-shaped plate structure with an opening toward the front, the linear guide rail is arranged in the opening of the lifting beam, and the transverse slide is slidably nested in the opening of the lifting beam; the brake groove is arranged at the front side end of the web of the lifting beam.

3. The two-dimensional code inkjet device for a printing machine according to claim 1, characterized in that: A lateral fine-tuning mechanism is provided between the lifting beam and the vertical fine-tuning frame. The lateral fine-tuning mechanism includes a bevel rack provided at the top end of the lifting beam along its length direction. A vertically arranged rotating shaft is rotatably connected to the back plate of the vertical fine-tuning frame through a connecting ear plate. A handle is provided at the top end of the rotating shaft, and a gear meshing with the bevel rack is fixedly connected to the rotating shaft.

4. The two-dimensional code inkjet device for a printing machine according to claim 1, characterized in that: The lifting drive mechanism includes a dual-axis motor arranged on the top beam of the gantry bracket, and two-axis steering boxes are fixedly provided at both ends of the gantry bracket. The output shaft of the dual-axis motor is connected to the input shaft of the corresponding two-axis steering box through a coupling and a transmission shaft. The output shaft of the two-axis steering box is vertically downward and fixedly connected to a screw A, which is rotatably connected to the side beam of the gantry bracket, and the two ends of the lifting beam are respectively rollingly connected to the screw A on both sides.

5. The two-dimensional code inkjet device for a printing machine according to claim 1, characterized in that: The front side end of the vertical fine-tuning frame is rotatably connected to a lead screw B via a connecting ear plate. The front side end of the vertical fine-tuning frame is also provided with a vertically arranged linear guide rail 2. A slider 2 that slides with the linear guide rail 2 is fixedly connected to the back plate of the vertical slide plate, and the slider 2 is rollingly connected to the lead screw B; the top end of the lead screw B is fixedly connected to a handle 1.

6. The two-dimensional code inkjet device for a printing machine according to claim 1, characterized in that: The mounting frame is an inverted L-shaped plate structure, and a linear guide rail three is provided in the vertical direction on the upper portion of the vertical plate of the mounting frame, and a slider three is slidably connected to the linear guide rail three, and the photoelectric switch is fixed on the slider three in the horizontal direction; an adjusting screw is threadedly connected to the top plate of the mounting frame, and the end of the adjusting screw passes through the top plate of the mounting frame, and the slider three is rollingly connected to the adjusting screw, and locking nuts are connected to the upper and lower ends of the adjusting screw located on the top plate of the mounting frame.

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