Printing system for anti-counterfeiting two-dimensional code for packing card paper

An anti-counterfeiting printing and printing system technology, applied in the printing field, can solve problems such as error-prone, inconsistent printing of two-dimensional codes, delay in production, etc., and achieve the effect of low error rate production and guaranteed identity

Active Publication Date: 2018-06-15
SHANGHAI DONGGANG PRINTING
6 Cites 3 Cited by

AI-Extracted Technical Summary

Problems solved by technology

When the existing packaging jammed paper is fed, it is usually manually or mechanically sucked and placed directly at the paper inlet in front of the printing unit. It is easy to make mistakes, but it is difficult to control the angle of paper feeding by using the method of manipulator adsorption and feeding, and it is easy to cause the problem that the position of the two-dimensional code is not uniform.
[0004] In addition, the paper delivery device of the entire set of anti-counterfeiting print...
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Abstract

The invention relates to a printing system for an anti-counterfeiting two-dimensional code for packing card paper. The printing system comprises a paper feeding device (1), a paper feeding guide device (2), a code spraying printing device (3) and a paper collecting device (4); the paper feeding device (1) comprises a paper feeding cavity, a paper placing platform (15) arranged in the paper feedingcavity and a paper feeding wheel (17) which is suspended above the paper feeding cavity; the paper feeding guide device (2) comprises a paper feeding conveying table (23) for receiving a paper feeding outlet (13), and a guide plate (21) and guide balls (22) which are arranged on the upper part of the paper feeding conveying table (23); the code spraying printing device (3) comprises a code spraying conveying belt and a code spraying unit (32) arranged on the code spraying conveying belt (31); and the paper collecting device (4) comprises a paper collecting conveying belt (41) and a paper collecting unit (42) arranged below the rear part of the paper collecting conveying belt (41). Compared with the prior art, the paper feeding device, the paper feeding guide device, the paper collecting device and the like are arranged so that high-efficiency and high-identity production in the anti-counterfeit printing process of the whole packaging card paper can be achieved, and manpower and material resources are saved.

Application Domain

Technology Topic

Material resourcesSecurity printing +1

Image

  • Printing system for anti-counterfeiting two-dimensional code for packing card paper
  • Printing system for anti-counterfeiting two-dimensional code for packing card paper
  • Printing system for anti-counterfeiting two-dimensional code for packing card paper

Examples

  • Experimental program(2)

Example Embodiment

[0051] Example 1
[0052] An anti-counterfeit QR code printing system for packaging cardboard, its structure is as follows figure 1 Shown, including:
[0053] Paper feeding device 1: such as figure 2 As shown, it includes a paper feeding cavity, a paper feeding platform 15 arranged in the paper feeding cavity, and a paper feeding wheel 17 suspended above the paper feeding cavity. The paper feeding cavity is composed of two parallel longitudinal baffles 11 and a transverse baffle 12 The height of the horizontal baffle 12 is smaller than that of the vertical baffle 11, and a paper inlet is formed between the horizontal baffle 12 and the vertical baffle 11, and the paper feeding platform 15 can feed paper along The inner wall of the cavity moves up and down, so that the packaging jam paper placed on the paper placing platform 15 can be resisted by the paper feeding wheel 17 and taken out;
[0054] Paper feed guide 2: see Figure 4 with Figure 5 As shown, it includes a paper feeding table 23 that accepts the paper feeding outlet, and a guide plate 21 and a guide ball 22 arranged above the paper feeding table 23. The cross section of the guiding plate 21 is L-shaped and includes The positioning vertical plate 211 on the side of the conveying table 23, and the horizontal plate 212 arranged at the top of the positioning vertical plate 211 and hanging parallel to the paper feeding conveying table 23, the guide ball 22 can be rotatably arranged on the horizontal plate 212, which is connected with the paper feeding A guide gap 24 is formed between the conveying tables 23 so that the packaging paper jam closes to the guide ball 22, and the rotation of the guide ball 22 drives the packaging paper jam to advance and gradually fits the positioning vertical plate 211;
[0055] Code printing device 3: Including a code printing conveyor belt 31, and a code printing unit 32 arranged above the code printing conveyor belt 31 and spraying codes on the packaging jammed paper;
[0056] Paper delivery device 4: includes a delivery conveyor belt 41 and a delivery unit 42 arranged below and behind the delivery conveyor belt 41. The delivery unit 42 includes a rotating base 421 and two tops arranged symmetrically and half-divided on the rotating base 421 Open the collection box 422, and ensure that one of the two collection boxes 422 is always used to accept the packaging jams sent from the collection conveyor 41;
[0057] The paper feeding conveying table 23, the coding conveying belt 31 and the paper receiving conveying belt 41 are connected end to end in sequence and used for conveying the packaging jam.
[0058] In this embodiment, the top ends of the two longitudinal baffles 11 extend into the paper feeding cavity, and form a gap and are always attached to the uppermost limit stop board 14 of the packaging jam on the paper feeding platform 15. More preferably, a lifting unit 16 is provided under the paper unloading platform 15. The lifting unit 16 drives the paper unloading platform 15 to move in a process that meets the following requirements: every time a piece of packaging jammed paper is driven by the paper feed wheel 17 to leave the paper inlet, the lifting unit 16 drives The paper placing platform 15 moves upward so that the uppermost packaging jam on the paper placing platform 15 just fits the limit stop cardboard 14.
[0059] In this embodiment, the paper feeding wheel 17 is composed of two paper feeding arc segments 171 arranged at equal intervals and enclosing a circle. In this way, the interval between the paper feeding arcs 171 can be used to provide sufficient time for the package jam at the top of the paper feeding platform to be completely fed out of the paper feeding device 1, so that the "chasing paper" phenomenon of the next package jam will not occur. At the same time, the rotation speed of the paper feeding wheel 17, the size of the paper feeding wheel 17, and the interval between the paper feeding arc segments 171 satisfy: along the direction of the paper feeding wheel 17 rotation, the paper feeding arc 171 of the latter section rotates to stick to the packaging jam. At the time, the packaging jams driven by the previous paper feeding arc 171 have all left the paper inlet. In addition, the height of the paper feed roller 17 suspended above the paper feed cavity should be moderate, too high or too low, it is difficult to smoothly send out the packaging jam. The height of the paper feed roller 17 is preferably just above the lower surface of the limit stop cardboard 14 at the lowest end edge.
[0060] In this embodiment, several guide balls 22 are arranged on the horizontal plate 212 along the direction of the packaging paper jam. The installation position of the guide balls 22 on the horizontal plate 212 gradually approaches the positioning vertical plate 211 along the direction of the packaging paper jam. The rotation direction of the ball 22 gradually changes from an inclined direction toward the positioning vertical plate 211 to a direction parallel to the positioning vertical plate 211. Along the transport direction of the packaging jam on the paper feeding table 23, the rotation direction of the first guide ball 22 of the horizontal plate 212 and the positioning vertical plate 211 are at an angle of 30°, and the rotation direction of the last guide ball 22 is parallel to the positioning vertical plate 211 . In addition, in order to ensure that the packaging jam will not be dragged by two adjacent guide balls 22 to cause surface deformation and affect printing quality, the distance between two adjacent guide balls 22 is not less than the length of the packaging jam, preferably slightly larger than The paper length is sufficient. At the same time, in order not to affect the transportation of the packaging jam on the paper feeding conveying table 23, its surface is preferably processed into a smooth plane.
[0061] In this embodiment, between the paper delivery conveyor belt 41 and the paper delivery unit 42, a paper delivery guide platform 43 inclined backward and downward is also provided. The top of the paper delivery guide platform 43 receives the tail end of the paper delivery belt 41, and the bottom end is butted. The opening of a paper receiving box 422 on the rotating base 421, and the bottom end of the paper receiving guide 43 is also provided with a flip-up baffle 44 which is rotatably connected to it on one side. The setting of the delivery guide platform 43 can adjust the angle of the packaging jammed paper into the delivery box 422 on the one hand, and facilitate the smooth entry of the packaging jam into the delivery box 422. On the other hand, the delivery guide platform 43 can store the packaging jam in a short time. Function, so as to provide operating time margin for the exchange position of the receiving box 422. The flip-up baffle 44 has two states, the flat state and the upturned state. The flattened state is in the same plane as the delivery guide platform 43, and the upturned state is perpendicular to the delivery guide platform 43. When turned up, it can be temporarily fixed, so that the delivery guide 43 temporarily cuts off the path leading to the delivery box 422 so as not to affect the exchange of the delivery box 422.
[0062] In this embodiment, the collection box 422 includes a bottom plate 426 and a side panel 425 surrounding the bottom plate 426. A weighing unit 424 is also arranged on the bottom plate 426. The weighing unit 424 is installed on the weighing unit 424 to receive a paper picking plate 423 separate from the side panel 425. . Since packaging jams are processed by assembly lines, under the premise of controlling the processing accuracy of assembly line coding and other processing accuracy, the weight of each packaging jam should be the same. In this way, the paper picking plate 423 of the receiving box 422 is measured by the weighing unit 424. By weighing, the quantity of jammed packaging paper stored in the receiving box 422 can be calculated. The weighing unit 424 may use an instrument such as a load cell, an electronic weighing instrument, and the like.
[0063] In this embodiment, a second control unit and a reminder are also arranged on the rotating base 421, and the weighing unit 424 is feedback connected to the second control unit, so that when the weight value fed back by the weighing unit 424 reaches the set threshold, the first The second control unit controls the reminder to send out a signal to take the paper box 422 away. The second control unit is also provided with a display screen, and the value corresponding to the packaging jam in the receiving box 422 is displayed on the display screen. The prompt setting threshold is slightly less than the value of the number of paper jams that the receiving box 422 should actually accept. In this way, the operator can promptly replace the receiving box 422 after hearing the prompt signal, and adjust the inner packaging card of the receiving box 422 slightly. The number of papers can complete the counting of wrapping units. The second control unit can be a commonly used control module, such as a PLC control module.
[0064] In this embodiment, the code jet printing device 3 may be a commonly used ink jet printer on the market, and it may include one or more jet docks for jetting papers, and each jet dock can independently jet codes.
[0065] The specific working principle of this embodiment is:
[0066] The packaging jam paper to be printed with the anti-counterfeit QR code is placed on the paper placing platform 15 and moved up and down by the paper placing platform 15 so that the packaging jam paper can always be resisted by the paper feeding wheel 17 and taken out of the paper outlet 13. The packaging jam paper sent out from the paper outlet 13 is directly sent to the smooth paper feeding conveying table 23. The width of the guide gap 24 is just enough to satisfy the guide ball 22 to fit the packaging jam paper through the guide ball 22. The rotation guide of the packaging paper can always enter the next step of the inkjet printing device 3 at an angle that fits the positioning vertical plate 211 after passing through the paper feeding conveying table 23. After the anti-counterfeiting QR code is printed by the code printing device 3, the package jam paper is sent along the code printing conveyor belt 31 and the paper delivery conveyor belt 41 to the paper receiving box 422 under the paper receiving guide 43 in the paper receiving unit 42. After the packaging jam in the receiving box 422 is received to a certain extent, that is, when the weight signal fed back by the weighing unit 424 exceeds the set threshold, the second control unit controls the prompter to send a signal to take the receiving box 422, and the operator hears the signal After that, the flip-up baffle 44 can be manually turned up to cut off the paper delivery path. Then, the position of the two collection boxes 422 can be changed. Then, the flip-up baffle 44 can be turned down again to insert the temporarily stored packaging paper In the receiving box 422, the number of jammed papers in the receiving box 422 that is full of packaging jams is adjusted to the number of wrapping units according to the count value displayed by the weight, and the cycle is repeated.

Example Embodiment

[0067] Example 2
[0068] On the basis of embodiment 1, this embodiment is further set as follows:
[0069] The two ends of the paper feeding platform 15 protrude upward to form a limiting protrusion 18 whose height is not greater than the thickness of the packaging cardboard. The limit protrusion 18 can effectively prevent the contact friction between the paper feeding platform and the paper feeding roller. In addition, a pressure sensor is arranged on the lower surface of the limit stop cardboard 14, the pressure sensor is connected to the first control unit in feedback, and the lifting unit 16 is also connected to the first control unit to control the lifting. In this way, through the pressure signal fed back by the pressure sensor, the second control unit can adjust the degree of up and down of the lifting unit, thereby ensuring that the packaging jam on the paper feeding platform can effectively contact the paper feed roller, and it will not happen due to paper and Excessive pressing force between the limit stop cardboards causes the paper feed roller to slip.
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the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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