A laser signing system and a signing method thereof

Abstract

The application provides a laser signing system and a signing method thereof. The signing system comprises a control system, a printing and photographing combined machine table, a card flipping machine table, a laser printing device, a camera device and a plurality of sensors which are respectively in communication connection with the control system. The printing and photographing combined machine table is configured to drive the card to move to or away from a predetermined printing and photographing position. The card flipping machine table is configured to drive the card to move to or away from a predetermined translation position. The card flipping machine table is further configured to flip the card to a predetermined flipping position when the card reaches the predetermined translation position. The plurality of sensors are respectively configured to detect whether the card is at the predetermined printing and photographing position, the predetermined translation position and the predetermined flipping position. In the predetermined printing and photographing position, the laser printing device performs laser printing on the card, and the camera device performs unobstructed photographing on the card. The signing speed is fast, the efficiency is high, the signing is easy to control, and the signing effect is stable and accurate.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of laser printing, in particular to a laser signing system and a signing method thereof. BACKGROUND

[0002] Certificate cards, such as identity cards, driver's licenses, and other personal identification documents, are used to prove identity, experience, and the like. Personalized information, such as a person's portrait, name, age, and the like, on identification cards, driver's licenses, and passports needs to be printed using a printer. The certificate cards to be printed generally include two printing surfaces, namely a front printing surface and a back printing surface.

[0003] A laser printing system is a commonly used certificate card printing device, which generally includes a control system, a printer table, and a laser printing device in communication with the control system. The printer table is used to carry the certificate cards to be printed, and the laser printing device prints target printing information onto the current printing surface of the certificate cards to be printed according to the printing instructions from the control system.

[0004] In some printing practices, specific public template information is pre-printed on the front printing surface and the back printing surface of the certificate cards to be printed. The laser printing system needs to print printing information (i.e., personalized information) that matches the public template information in the predetermined area of the front printing surface and the back printing surface of the certificate cards. The public template information and the printing information constitute the complete card surface information after printing. Of course, the public template information and the printing information can include text and / or images.

[0005] The existing laser printing system has the following defects: (1) the laser printing device is located above the turnover device, and the turnover device serves as a marking position. Its structure may cause unstable transmission, slippage, and card jamming in the device; (2) during the signing process, the certificate cards are photographed. Due to the guide wheels and other settings of the turnover device, there is some obstruction on the surface of the certificate cards, which cannot achieve unobstructed and panoramic photography of the card surface, and has some influence on the identification and inspection of the card; (3) the laser printing device is unstable due to external vibration, and has low accuracy and precision. In addition, external light interferes with the laser light source, causing the photographed photos to have different brightness and uneven brightness; (4) the laser printing system uses a camera for positioning, and the camera needs to slow down, take photos, and identify the card. Therefore, the speed of card transmission and positioning is slow.

[0006] Therefore, it is necessary to provide a new technical solution. SUMMARY

[0007] To solve the technical problems in the prior art, the present application discloses a laser signing system and a signing method thereof, which has fast signing speed, high efficiency, easy control, and high stability and accuracy of signing effect. The specific technical solution is as follows:

[0008] According to one aspect of the present application, the present application provides a laser signing system, which comprises a control system, a printing and photographing combined machine table, a card flipping machine table, a laser printing device, a camera device and a plurality of sensors respectively connected in communication with the control system,

[0009] The printing and photographing combined machine table is configured to drive the card to translate to or away from a predetermined printing and photographing position, the card flipping machine table is configured to drive the card to translate to or away from a predetermined translation position, and the card flipping machine table is further configured to flip the card to a predetermined flipping position when the card reaches the predetermined translation position, a plurality of sensors are respectively configured to detect whether the card is at the predetermined printing and photographing position, the predetermined translation position and the predetermined flipping position, at the predetermined printing and photographing position, the laser printing device performs laser printing on the card, and the camera device performs unobstructed photographing on the card.

[0010] According to another aspect of the present application, the present application provides a laser signing method for continuously laser printing on a first printing surface and a second printing surface of a card using a laser signing system, the laser signing system comprising a control system and a printing and photographing combined machine table, a card flipping machine table, a second sensor, a third sensor, a fourth sensor, a fifth sensor, a laser printing device and a camera device respectively connected in communication with the control system, characterized in that the laser signing method comprises:

[0011] The control system acquires to-be-printed information;

[0012] The translation module of the printing and photographing combined machine table translates the to-be-printed card in the original direction, and the second sensor detects whether the to-be-printed card reaches a predetermined printing and photographing position; if the to-be-printed card reaches the predetermined printing and photographing position, the camera device acquires an image of the current first printing surface and sends the image to the control system, the control system identifies the image of the first printing surface to determine the type and direction of the first printing surface; and sends a first printing information template matched with the type and direction of the current first printing surface to the laser printing device, and the laser printing device prints a pattern and / or text corresponding to the first printing information template on the first printing surface;

[0013] The translation module of the printing and photographing combined machine table reversely translates the card with the first printing surface printed to the card flipping machine table;

[0014] The fourth sensor detects whether the reverse translation front end of the current card exceeds the card flipping machine, the fifth sensor detects whether the reverse translation rear end of the current card exceeds the card flipping machine, if the reverse translation front end and the reverse translation rear end of the current card do not exceed the card flipping machine, the flipping mechanism flips the card to flip the current printing surface of the card into a second printing surface, the third sensor detects whether the flipped card is horizontal, if yes, the translation mechanism of the card flipping machine translates the flipped card to the printing and photographing combined machine,

[0015] The control system judges the type and direction of the second printing surface based on the type and direction of the first printing surface and the flipping mode of the flipping mechanism, or the camera obtains an image of the second printing surface and sends the image to the control system, the control system identifies the image of the second printing surface to judge the type and direction of the second printing surface, and the control system sends a second printing information template matched with the type and direction of the second printing surface to the laser printing device, and the laser printing device prints a pattern and / or text corresponding to the second printing information template on the second printing surface.

[0016] The present application has the following advantages:

[0017] Compared with the prior art, the laser printing device is arranged above the printing and photographing combined machine, i.e., the printing and photographing combined machine is a marking position, and the card is positioned by multiple sensors, the printed card is flipped by the card flipping machine and then directly printed by the laser printing device at the printing and photographing combined machine, so that the signing speed is fast, the efficiency is high, the signing effect is stable and accurate, and the signing effect is stable and accurate.

[0018] Additional aspects and advantages of the present application will be made apparent from the following description. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only show some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without any creative effort.

[0020] Figure 1 It is a three-dimensional schematic view of the laser signing system in the present application;

[0021] Figure 2 It is a three-dimensional schematic view of the laser signing system in the present application from a first perspective;

[0022] Figure 3 for Figure 2 a top view schematic diagram of the laser marking system in the present application;

[0023] Figure 4 for a perspective view of the laser printing device of the laser marking system in the present application;

[0024] Figure 5 for a perspective view of the laser marking system in the present application with multiple sensors arranged at a first viewing angle;

[0025] Figure 6 for a perspective view of the laser marking system in the present application with multiple sensors arranged at a second viewing angle;

[0026] Figure 7 for a perspective view of the printing and photographing combined machine table of the laser marking system in the present application at a photographing position;

[0027] Figure 8 for a perspective view of the printing and photographing combined machine table of the laser marking system in the present application at an initial position. DETAILED DESCRIPTION

[0028] Embodiments of the present application are described in detail below with reference to the accompanying drawings, wherein the same or similar notations used throughout the drawings and the specification denote the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present application, and should not be understood as limiting the present application.

[0029] In the description of the present application, it should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be understood as limiting the present application. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified and limited.

[0030] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0031] Please refer to Figures 1 to 8 ,Figure 1 This is a three-dimensional schematic diagram of the laser endorsement system in this invention; Figure 2 This is a three-dimensional schematic diagram of the laser endorsement system of the present invention from a first perspective. Figure 3 for Figure 2 A top-down view; Figure 4 This is a perspective view of the laser printing device of the laser endorsement system in this invention; Figure 5 A stereoscopic view of the laser marking system of the present invention, showing the setup of multiple sensors from a first-view perspective. Figure 6 A stereoscopic view from a second perspective showing the setup of multiple sensors in the laser marking system of this invention. Figure 7 This is a perspective view of the combined printing and photographing machine of the laser endorsement system in this invention in the photographing position; Figure 8 This is a perspective view of the printing and photographing combined machine of the laser endorsement system of this invention in its initial position. Figures 1 to 8 The diagram shown is a side view of the laser endorsement system of the present invention. The laser endorsement system of the present invention includes: an automatic card issuing device 10, a card reading and writing device 20, a card flipping machine 30", a printing and photographing combined machine 90", a camera device 50, a laser printing device 60, and a control system 70 (not shown). The automatic card issuing device 10, the card reading and writing device 20, the card flipping machine 30", the printing and photographing combined machine 90", the camera device 50, the laser printing device 60, and the control system 70 (not shown) are all mounted on the workbench 1.

[0032] The laser endorsement system of the present invention also includes a bracket 2, which is fixed to the worktable 1, and the laser printing device 60 is fixed to the bracket 2. The laser printing device is stably fixed to the worktable 1 from below by the bracket 2, preventing instability caused by external vibrations and improving the accuracy and precision of laser printing. In a preferred embodiment, the bracket 2 is a frame-type bracket located outside the printing and photographing combined machine 90”. In the direction of card translation 100, the length of the bracket 2 is greater than the length of the printing and photographing combined machine 90”. In this case, the horizontal fixing width of the bracket 2 is wider, providing more stable support for the laser printing device. In another embodiment, in the direction of card translation, the length of the bracket 2 may be less than or equal to the length of the printing and photographing combined machine 90”.

[0033] The support 2 is also equipped with a light-shielding plate 21, which is fixed to the side of the support 2. The light-shielding plate 21 is positioned around the laser light source to block external light sources. The laser light source is shielded from external light by the light-shielding plate 21, preventing interference with external light. Furthermore, the laser light source has been improved from a strip light source to a surface light source, resulting in photos without areas of varying brightness and with more uniform brightness.

[0034] The laser printing system further comprises a plurality of sensors, including a first sensor 940, a second sensor 950, a third sensor 330, a fourth sensor 340, and a fifth sensor 350. The second sensor 950 and the first sensor 940 are both arranged on the printing and photographing combined machine 90”. The third sensor 330 is arranged on one side of the card flipping machine 30”. The fourth sensor 340 and the fifth sensor 350 are arranged at the two ends of the card flipping machine 30” in the translation direction of the card.

[0035] Please continue to refer to Figure 7 and Figure 8 , the printing and photographing combined machine 90” specifically comprises a photographing rack 910, a driving module 920, and a translation module 930.

[0036] The photographing rack 910 is formed with a transmission channel 912 for the card 100 (sometimes referred to as a card to be printed above) to pass through. In the specific embodiment shown in Figure 7 , the photographing rack 910 comprises a first photographing side plate 914, a second photographing side plate 916, a first blocking strip 917, and a second blocking strip 918. The first photographing side plate 914 and the second photographing side plate 916 are arranged vertically and oppositely. The first blocking strip 917 and the second blocking strip 918 are symmetrically connected above the first photographing side plate 914 and the second photographing side plate 916, respectively. The length direction of the first blocking strip 917 and the second blocking strip 918 is consistent with the conveying direction of the card 100. The transmission channel 912 for the card 100 to pass through is formed between the first blocking strip 917 and the second blocking strip 918. In a preferred embodiment, the first blocking strip 917 and the second blocking strip 918 are detachably connected to the first photographing side plate 914 and the second photographing side plate 916, respectively. The first blocking strip 917 and the second blocking strip 918 can be flexibly replaced according to the size of the card, so that the card transmission channel has high spacing accuracy and can stably convey and position the card. The first blocking strip and the second blocking strip of the present application are made of wear-resistant material and will not be worn after the card passes through.

[0037] The translation module 930 is used to drive the card 100 to translate to or away from a predetermined printing and photographing position. The driving module 920 is used to drive the translation module 930 to switch between a shielding state and a non-shielding state. The camera 50 is configured to take a non-shielded photograph of the card when the translation module 930 is in the non-shielding state. The second sensor 950 (see Figure 5) is configured to detect whether the card translation reaches the marking position, i.e. the second sensor 950 detects whether the card translation reaches a predetermined printing and photographing position, and outputs a translation-to-position signal when the second sensor 950 detects that the card translation reaches the marking position. Wherein, the card translation reaching the marking position includes forward translation and reverse translation.

[0038] The driving module 920 includes oppositely arranged first and second rotating shafts 921 and 922. The first rotating shaft 921 is rotatably arranged on the photographing rack 910 and is disposed on one side of the transmission channel 912 along the direction of card transmission; and the second rotating shaft 922 is rotatably arranged on the photographing rack 910 and is disposed on the other side of the transmission channel 912 along the direction of card transmission. Figure 7 In the specific embodiment shown, the first rotating shaft 921 is rotatably arranged on the top of the first photographing side plate 914; and the second rotating shaft 922 is rotatably arranged on the top of the second photographing side plate 916.

[0039] The translation module 930 includes a plurality of first translation upper driving wheels 931 and a plurality of first translation lower driving wheels 932 arranged on one side of the transmission channel 912, and a plurality of second translation upper driving wheels 933 and a plurality of second translation lower driving wheels 934 arranged on the other side of the transmission channel 912.

[0040] The plurality of first translation upper driving wheels 931 are sequentially arranged on the first rotating shaft 921 along the axial direction of the first rotating shaft 921; the plurality of first translation lower driving wheels 932 are arranged on the photographing rack 910 and sequentially arranged on one side of the transmission channel 912 along the axial direction of the first rotating shaft 921, and are located below the plurality of first translation upper driving wheels 931 and are perpendicular to the direction of the card; and the plurality of first translation upper driving wheels 931 correspond to the plurality of first translation lower driving wheels 932 one-to-one. The plurality of second translation upper driving wheels 933 are sequentially arranged on the second rotating shaft 922 along the axial direction of the second rotating shaft 922; the plurality of second translation lower driving wheels 934 are arranged on the photographing rack 910 and sequentially arranged on the other side of the transmission channel 912 along the axial direction of the second rotating shaft 922, and are located below the plurality of second translation upper driving wheels 933 and are perpendicular to the direction of the card; and the plurality of second translation upper driving wheels 933 correspond to the plurality of second translation lower driving wheels 934 one-to-one.

[0041] The plurality of first translation upper driving wheels 931 are sequentially arranged on the inner side of the first photographing side plate 914; and the plurality of second translation upper driving wheels 933 are sequentially arranged on the inner side of the second photographing side plate 916. Figure 7In the illustrated embodiment, the first upper translation transmission wheels 931 and the first lower translation transmission wheels 932 are each three in number, and the second upper translation transmission wheels 933 and the second lower translation transmission wheels 934 are each three in number. In other embodiments, the first upper translation transmission wheels 931 and the first lower translation transmission wheels 932 can be two, four, five or more in number; the second upper translation transmission wheels 933 and the second lower translation transmission wheels 934 can be two, four, five or more in number.

[0042] When the first rotation shaft 921 drives the first upper translation transmission wheels 931 to flip to the initial position, the first upper translation transmission wheels 931 are placed perpendicularly to the card direction, and a translation gap is formed between the first upper translation transmission wheels 931 and the first lower translation transmission wheels 932 opposite thereto, so as to clamp one side of the card 100 and drive the card 100 to translate, at which time the translation module 930 is in the shielding state; when the first rotation shaft 921 drives the first upper translation transmission wheels 931 to flip to the photographing position, the first upper translation transmission wheels 931 are placed parallel to the card direction, so as to avoid (or not shield) the card 100, at which time the translation module 930 is in the non-shielding state. When the second rotation shaft 922 drives the second upper translation transmission wheels 933 to flip to the initial position, the second upper translation transmission wheels 933 are placed perpendicularly to the card direction, and a translation gap is formed between the second upper translation transmission wheels 933 and the second lower translation transmission wheels 934 opposite thereto, so as to clamp the other side of the card and drive the card to translate, at which time the translation module 930 is in the shielding state; when the second rotation shaft 922 flips to the printing and photographing position (which can also be referred to as the second position), the second upper translation transmission wheels 933 are placed parallel to the card direction, so as to avoid (or not shield) the card 100, at which time the translation module 930 is in the non-shielding state.

[0043] It should be noted that in other embodiments, when the first upper translation transmission wheels 931 flip to the printing and photographing position, the first upper translation transmission wheels 931 can not be placed parallel to the card direction, as long as the first upper translation transmission wheels 931 avoid (or do not shield) the card 100; similarly, when the second upper translation transmission wheels 933 flip to the printing and photographing position, the second upper translation transmission wheels 933 can not be placed parallel to the card direction, as long as the second upper translation transmission wheels 933 avoid (or do not shield) the card 100.

[0044] In order to drive the first rotation shaft 921 and the second rotation shaft 922 to rotate, a first driving motor 941 and a second driving motor 942 are arranged on the translation module 930, and the first rotation shaft 921 and the second rotation shaft 922 are respectively connected to the first driving motor 941 and the second driving motor 942. Figure 7In the embodiment shown, the driving module 920 further comprises a rotating shaft driving mechanism (not shown), which comprises a third rotating shaft 923 located at one end of the first rotating shaft 921 and the second rotating shaft 922 and perpendicular to the first rotating shaft 921 and the second rotating shaft 922; a first gear 9212 arranged at one end of the first rotating shaft 921; a second gear 9222 arranged at one end of the second rotating shaft 922; a third gear 9232 arranged at one end of the third rotating shaft 923 and matched with the first gear 9212; a fourth gear 9234 arranged at the other end of the third rotating shaft 923 and matched with the second gear 9222; the third rotating shaft 923 drives the first rotating shaft 921 to rotate via the third gear 9232 and the first gear 9212, and the third rotating shaft 923 drives the second rotating shaft 922 to rotate via the fourth gear 9234 and the second gear 9222.

[0045] In Figure 7 In the embodiment shown, the rotating shaft driving mechanism further comprises a rotating shaft driving driving wheel (not shown) arranged outside the first photographing side plate 914, a rotating shaft driving driven wheel 925 arranged at one end of the third rotating shaft 923, a belt (not shown) connecting the rotating shaft driving driving wheel and the rotating shaft driving driven wheel 925, and a rotating shaft driving motor (not shown) arranged inside the first photographing side plate 914. The rotating shaft driving motor is electrically connected with the rotating shaft driving driving wheel, and the rotating shaft driving motor is used to drive the rotating shaft driving driving wheel to rotate. The rotating shaft driving driving wheel (not shown) drives the third rotating shaft 923 to rotate via the belt and the rotating shaft driving driven wheel 925.

[0046] It should be noted that in another embodiment, other structures of rotating shaft driving mechanisms can also be used to drive the first rotating shaft 921 and the second rotating shaft 922 to rotate.

[0047] In another embodiment, the third rotating shaft 923 is coated with a wear-resistant layer 9231, the wear-resistant layer 9231 is close to the middle of the third rotating shaft 923, and the width of the wear-resistant layer 9231 is greater than or equal to the width of the ID card. The wear-resistant layer 9231 can more stably convey and position the ID card, and the ID card will not be worn after passing through.

[0048] In Figures 5 to 8In the embodiment shown, the second sensor 950 is arranged on the printing and photographing combined machine 90" at the end from which the card is moved out. When the second sensor 950 detects that the card moves in the original direction to the marking position, it means that the second sensor detects that the card moves in the original direction to the printing and photographing position. The first sensor 940 detects whether the first plurality of translation driving wheels 931 and the second plurality of translation driving wheels 933 are flipped to the position, i.e., whether the first plurality of translation driving wheels 931 and the second plurality of translation driving wheels 933 are flipped to the printing and photographing position. For example, when the first sensor 940 detects that the first plurality of translation driving wheels 931 and the second plurality of translation driving wheels 933 are flipped to the printing and photographing position, it outputs a flip-to-position signal.

[0049] In Figure 7 and Figure 8 In the specific embodiment shown, the first sensor 940 includes a baffle 942 and a photoelectric sensor (not shown). The baffle 942 is arranged on the first rotating shaft 921, and the photoelectric sensor is located outside the first photographing side plate 914 and close to the first rotating shaft 921. When the first rotating shaft 921 drives the first plurality of translation driving wheels 931 to rotate away from the printing and photographing position, the baffle 942 is flipped to the outside of the photoelectric sensor, the emission-receiving light path in the photoelectric sensor is unblocked, and the first sensor 940 generates a first sensing signal; when the first rotating shaft 921 drives the first plurality of translation driving wheels 931 to flip to the printing and photographing position, the baffle 942 is flipped to the photoelectric sensor to block the emission-receiving light path in the photoelectric sensor, and the first sensor 940 generates a second sensing signal (i.e., the flip-to-position signal).

[0050] The camera 50 is located above the photographing rack 910 of the printing and photographing combined machine 90", and the camera 50 is used to take a photograph of the card 100 carried in the transmission channel 912 of the photographing rack 910.

[0051] In order to facilitate understanding of the present application, the following specifically introduces Figures 1 to 8 the working process of the printing and photographing combined machine.

[0052] When the card 100 needs to move to the predetermined printing and photographing position, the first plurality of translation driving wheels 931 and the second plurality of translation driving wheels 933 are all in the initial position (see Figure 8). A plurality of first translation upper driving wheels 931 are arranged perpendicularly to the direction of the card, and a translation gap is formed between the first translation upper driving wheels 931 and the first translation lower driving wheels 932 opposite to the first translation upper driving wheels 931, so as to clamp one side of the card 100 and drive the card to translate; a plurality of second translation upper driving wheels 933 are arranged perpendicularly to the direction of the card, and a translation gap is formed between the second translation upper driving wheels 933 and the second translation lower driving wheels 934 opposite to the second translation upper driving wheels 933, so as to clamp the other side of the card 100 and drive the card to translate. At this time, the translation upper driving wheels 931, 933 and the translation lower driving wheels 932, 934 play a role of conveying the card 100.

[0053] When the card 100 needs to be printed and photographed after being translated to the predetermined printing and photographing position along the transmission channel 912, the third rotating shaft 923 is rotated to the second rotating direction, the first rotating shaft 921 is driven to rotate via the third gear 9232 and the first gear 9212, so as to make the plurality of first translation upper driving wheels 931 flip to the printing and photographing position, the second rotating shaft 922 is driven to rotate via the fourth gear 9234 and the second gear 9222, so as to make the plurality of second translation upper driving wheels 933 flip to the printing and photographing position. The plurality of first translation upper driving wheels 931 are arranged parallel to the direction of the card, so as to make the plurality of first translation upper driving wheels 931 avoid the card 100; the plurality of second translation upper driving wheels 933 are arranged parallel to the direction of the card, so as to make the plurality of second translation upper driving wheels 933 avoid the card 100. That is, when the card at the predetermined printing and photographing position needs to be printed and photographed, the plurality of first translation upper driving wheels 931 and the plurality of second translation upper driving wheels 933 are opened. At this time, the baffle 942 enters the photoelectric sensor 944, and the sensor 940 generates and outputs a flip-to-position signal. Subsequently, the camera 50 located above the photographing rack 910 photographs the card 100 at the predetermined printing and photographing position, and the laser printing device prints the card.

[0054] When the card 100 needs to be translated to leave the predetermined printing and photographing position after the photographing and printing are completed, the third rotating shaft 923 is rotated to the first rotating direction (the first rotating direction is opposite to the second rotating direction), the first rotating shaft 921 is driven to rotate via the third gear 9232 and the first gear 9212, so as to make the plurality of first translation upper driving wheels 931 flip to the initial position, the second rotating shaft 922 is driven to rotate via the fourth gear 9234 and the second gear 9222, so as to make the plurality of second translation upper driving wheels 933 flip to the initial position. That is, when the card needs to be translated to reach or leave the predetermined printing and photographing position, the plurality of first translation upper driving wheels 931 and the plurality of second translation upper driving wheels 933 are reset (or closed). Subsequently, the translation module 930 conveys the card 100 out in the original direction or the reverse direction.

[0055] Referring to Figure 5 , the card flipping machine 30" includes a translation mechanism and a flipping mechanism. The translation mechanism is configured to drive the card to translate; the fourth sensor 340 and the fifth sensor 350 are configured to cooperate to detect whether the card is at a predetermined translation position, i.e., the fourth sensor 340 is configured to detect whether the front end of the current card in translation exceeds the card flipping machine 30"; the fifth sensor 350 is configured to detect whether the rear end of the current card in translation exceeds the card flipping machine 30". The flipping mechanism is configured to flip the card to flip the current printing surface of the card from the first printing surface to the second printing surface. The third sensor 330 is configured to detect whether the card flipping is at a predetermined flipping position, i.e., the third sensor 330 is configured to detect whether the current card flipping is horizontal. It should be noted that in the present embodiment, the detection principles of the second sensor 950, the third sensor 330, the fourth sensor 340 and the fifth sensor 350 are the same as those of the first sensor 940, which will not be described here.

[0056] The present application adopts multiple sensors for positioning, which has fast positioning speed and high signing efficiency.

[0057] Referring to Figure 2 , the translation mechanism of the card flipping machine 30" includes a plurality of sets of pinch rollers, each set of pinch rollers including an upper pinch roller 31 and a lower pinch roller (not shown), a gap for the card to pass being provided between the upper pinch roller 31 and the lower pinch roller, and the contact area of the pinch roller with the card being less than or equal to the contact area of the transmission wheel 210 of the card reading and writing device with the card. The card flipping machine in the present application is not a marking position, the translation mechanism adopts the upper pinch roller and the lower pinch roller, and the pinch roller is located at the center, the pinch roller is wide, the contact area with the card is large, the card can be stably conveyed and flipped, and the card will not slip or be stuck in the device.

[0058] The working process of the laser signing system of the present application will be introduced below:

[0059] When single-sided printing is performed, the card 100 is quickly fed to the printing and photographing combined machine 90 by the automatic card feeding device 10. The translation module 930 of the printing and photographing combined machine 90 is driven to rotate forward to translate the card 100, and the front end of the card 100 is translated to the position of the second sensor 950. When the second sensor 950 detects that the card reaches the printing and photographing position, the shaft driving motor 926 works, and the third shaft 923 at one end is driven to rotate by the driving sprocket at the side, and the third shaft 923 drives the third gear 9232 and the fourth gear 9234 at both ends of the third shaft 923 to rotate, and the third gear 9232 and the fourth gear 9234 drive the first gear 9212 and the second gear 9222 to rotate, respectively. With the rotation of the first gear 9212 and the second gear 9222, the first translation driving sprocket 931 and the second translation driving sprocket 933 are rotated outward to open, and the first translation driving sprocket 931 and the second translation driving sprocket 933 change from the original direction perpendicular to the card 100 to the direction parallel to the card 100. At this time, the photographing is performed by the camera 50, and the first side is marked by the laser printing device 60. After the photographing and marking are completed, the first translation driving sprocket 931 and the second translation driving sprocket 933 are restored to the initial position, and the card 100 is conveyed along the original direction. It should be noted that in another embodiment, the first side is marked by the laser printing device 60, and after the photographing and marking are completed, the photographing can be performed again for verification. After verification, the first translation driving sprocket 931 and the second translation driving sprocket 933 are restored to the initial position, and the card 100 is conveyed along the original direction.

[0060] When double-sided printing is performed, after single-sided printing is completed, the first translation driving sprocket 931 and the second translation driving sprocket 933 of the printing and photographing combined machine 90 are restored to the initial position, and the card 100 is conveyed to the card flipping machine 30 in the reverse direction. At this time, the translation mechanism of the card flipping machine 30 is reversely rotated, so that when the end of the card (the front end of the card after reverse translation) reaches the position of the fourth sensor 340 and the front end of the card (the rear end of the card after reverse translation) does not exceed the fifth sensor 350, that is, at this time the card is located in the channel of the card flipping machine, the flipping mechanism of the card flipping machine 30 starts to flip. When the third sensor 330 detects that the current card flipping is in a horizontal position, the translation mechanism of the card flipping machine is driven to rotate forward to continue the forward movement of the card to the printing and photographing position of the printing and photographing combined machine 90, and the second side is marked and photographed. Finally, the card is fed out by the automatic card feeding device 80 in the original direction.

[0061] It should be noted that in the above-described embodiment, the positions of the card flipping machine 30 and the card reading and writing device 20 of the laser signing system can be interchanged.

[0062] In another embodiment, the present application also provides a laser inscription method for continuously laser printing a first printing surface and a second printing surface of an ID card using a laser inscription system, the laser inscription system comprising a control system and a printing and photographing combined machine table, an ID card flipping machine table 30", a second sensor 950, a third sensor 330, a fourth sensor 340, a fifth sensor 350, a laser printing device 60 and a camera 50, which are respectively connected in communication with the control system, the laser inscription method comprising:

[0063] The control system acquires printing information.

[0064] The translation module of the printing and photographing combined machine table 90" translates the ID card 100 to be printed in the original direction, and the second sensor 950 detects whether the ID card to be printed reaches a predetermined printing and photographing position.

[0065] If the ID card to be printed reaches the predetermined printing and photographing position, the camera 50 acquires an image of the current first printing surface and sends the image to the control system, the control system identifies the image of the first printing surface to determine the type and direction of the first printing surface, and sends a first printing information template matching the type and direction of the current first printing surface to the laser printing device, and the laser printing device prints a pattern and / or text corresponding to the first printing information template on the first printing surface.

[0066] The translation module of the printing and photographing combined machine table 90" translates the ID card with the first printing surface printed to the ID card flipping machine table 30" in the reverse direction.

[0067] The fourth sensor 340 of the ID card flipping machine table detects whether the front end of the current ID card translated in the reverse direction exceeds the ID card flipping machine table, and the fifth sensor 350 detects whether the rear end of the current ID card translated in the reverse direction exceeds the ID card flipping machine table, if neither the front end nor the rear end of the current ID card translated in the reverse direction exceeds the ID card flipping machine table, the flipping mechanism flips the ID card to flip the current printing surface of the ID card to the second printing surface, and the third sensor 330 detects whether the flipped ID card is horizontal, if yes, the translation mechanism of the ID card flipping machine table translates the flipped ID card in the original direction to the printing and photographing combined machine table 90".

[0068] The control system judges the type and direction of the second printing surface based on the type and direction of the first printing surface and the overturning mode of the overturning mechanism, or the camera obtains the image of the second printing surface and sends the image to the control system, the control system identifies the image of the second printing surface to judge the type and direction of the second printing surface, the control system sends the second printing information template matched with the type and direction of the second printing surface to the laser printing device, and the laser printing device prints the pattern and / or text corresponding to the second printing information template on the second printing surface.

[0069] The present application has the following advantages:

[0070] (1) The laser printing device of the present application is located above the printing and photographing combined machine, i.e., the printing and photographing combined machine is a marking position, and the card can be photographed without obstruction and signed at the same station.

[0071] (2) The laser printing device is stably fixed on the workbench through the support below, and the laser printing device will not be unstable due to external vibration, improving the accuracy and precision of laser printing; the light source is shielded by the light shield plate, and will not be affected by external light. And the laser light source is changed from the previous strip light source to the surface light source of the present application, so that the photos obtained by photographing will not have different areas of light and dark, and the photo brightness is more uniform.

[0072] (3) The card overturning machine is not a marking position, the translation mechanism adopts two groups of pressure rollers above and below, and the pressure rollers are located in the center structure, the pressure rollers are wider, and the contact area with the card is larger, which can more stably convey and overturn the card.

[0073] (4) The blocking bars are arranged on both sides of the card transmission channel of the printing and photographing combined machine, the blocking bars are made of wear-resistant materials, and the blocking bars can be flexibly replaced according to the size of the card, the card transmission channel has high spacing precision, and the card can be more stably conveyed and positioned, and the card will not be worn after passing through.

[0074] (5) The laser signing system of the present application adopts multiple sensors for positioning, which has high positioning speed and high signing efficiency.

[0075] In summary, the laser signing system of the present application has high signing speed, high efficiency, easy control, and improved stability and accuracy of signing effect.

[0076] In the description of the specification, the description using the terms "one embodiment", "some embodiments", "an example", "a specific example" or "some examples" etc. means that the particular feature, structure, material or characteristic being described is included in at least one embodiment or example of the present application. The illustrative appearance of the above-mentioned terms in various places in the specification does not necessarily refer to the same embodiment or example. Moreover, the particular features, structures, materials or characteristics can be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate different embodiments or examples described in the specification.

[0077] Although the embodiments of the present application have been shown and described above, it is understood that the above-described embodiments are exemplary, and are not to be interpreted as limiting the present application, and those skilled in the art can make changes, modifications and variations to the above-described embodiments within the scope of the present application.

Claims

1. A laser signing system, characterized by, It includes a control system (70), a printing and photographing combined machine (90'') connected with the control system respectively, a card flipping machine (30''), a laser printing device (60), a camera device (50) and a plurality of sensors, The printing and photographing combined machine is configured to drive the card to translate to or away from a predetermined printing and photographing position, the card flipping machine is configured to drive the card to translate to or away from a predetermined translation position, and the card flipping machine is further configured to flip the card to a predetermined flipping position when the card reaches the predetermined translation position, a plurality of sensors are respectively configured to detect whether the card is at the predetermined printing and photographing position, the predetermined translation position and the predetermined flipping position, at the predetermined printing and photographing position, the laser printing device performs laser printing on the card, and the camera device performs unobstructed photographing on the card; The printing and photographing combined machine further includes: A photographing rack (910) is formed with a transmission channel (912) for the card to pass through; A translation module (930) is configured to drive the card to translate to or away from a predetermined printing and photographing position; A driving module (920) is configured to drive the translation module to switch between an obstructed state and an unobstructed state, Wherein the camera device (50) is configured to unobstructed photograph the card reaching the marking position when the translation module (930) is in the unobstructed state; The driving module (920) includes a first rotating shaft (921), which is rotatably arranged on the photographing rack and is located on one side of the transmission channel along the direction of card transmission; The translation module includes a plurality of first translation upper transmission wheels (931) and a plurality of first translation lower transmission wheels (932) located on one side of the transmission channel, the plurality of first translation upper transmission wheels are sequentially arranged on the first rotating shaft along the axial direction of the first rotating shaft; the plurality of first translation lower transmission wheels are arranged on the photographing rack and sequentially arranged on the other side of the transmission channel along the axial direction of the first rotating shaft, the plurality of first translation lower transmission wheels are located below the plurality of first translation upper transmission wheels and are perpendicular to the direction of the card, The driving module further includes a second rotating shaft (922) arranged opposite to the first rotating shaft (921), the second rotating shaft is rotatably arranged on the photographing rack and is located on the other side of the transmission channel along the direction of card transmission, The translation module further includes a plurality of second translation upper transmission wheels (933) and a plurality of second translation lower transmission wheels (934) located on the other side of the transmission channel, The plurality of second translation upper transmission wheels are sequentially arranged on the second rotating shaft along the axial direction of the second rotating shaft; the plurality of second translation lower transmission wheels are arranged on the photographing rack and sequentially arranged on the other side of the transmission channel along the axial direction of the second rotating shaft, the plurality of second translation lower transmission wheels are located below the plurality of second translation upper transmission wheels and are perpendicular to the direction of the card.

2. The laser inscription system of claim 1, wherein, The photographing frame comprises a first photographing side plate (914), a second photographing side plate (916), a first blocking strip (917) and a second blocking strip (918), the first photographing side plate and the second photographing side plate are oppositely arranged, the first blocking strip (917) and the second blocking strip (918) are symmetrically connected to the first photographing side plate and the second photographing side plate respectively, and the first blocking strip (917) and the second blocking strip (918) form the transmission channel (912) for the card to pass through, The first rotating shaft is rotatably arranged at the top of the first photographing side plate, and the second rotating shaft is rotatably arranged at the top of the second photographing side plate. The first plurality of translation transmission wheels are sequentially arranged on the inner side of the first photographing side plate, and the second plurality of translation transmission wheels are sequentially arranged on the inner side of the second photographing side plate.

3. The laser inscription system of claim 2, wherein, The first blocking strip (917) and the second blocking strip (918) are detachably connected to the top of the first photographing side plate and the second photographing side plate respectively, the length direction of the first blocking strip (917) and the second blocking strip (918) is consistent with the transmission direction of the card, and the first blocking strip (917) and the second blocking strip (918) are wear-resistant blocking strips.

4. The laser inscription system of claim 1, wherein, The sensor comprises a first sensor (940) and a second sensor (950), the first sensor (940) and the second sensor (950) are arranged on the printing and photographing combined machine (90''), The second sensor (950) is configured to detect whether the card translation reaches a predetermined printing and photographing position, and outputs a translation positioning signal when the second sensor detects that the card translation reaches the predetermined printing and photographing position; The first sensor (940) is configured to detect whether the first plurality of translation transmission wheels and the second plurality of translation transmission wheels are flipped to the position, and outputs a flipping positioning signal when the first sensor (940) detects that the first plurality of translation transmission wheels and the second plurality of translation transmission wheels are flipped to the photographing position, the first sensor (940) comprises a baffle (942) and a photoelectric sensor, the baffle is arranged on the first rotating shaft, when the first rotating shaft drives the first plurality of translation transmission wheels to flip to the photographing position, the baffle flips to the photoelectric sensor to block the emission and reception light path in the photoelectric sensor, and the first sensor generates and outputs the flipping positioning signal.

5. The laser marking system of claim 4, wherein: The driving module further comprises a rotating shaft driving mechanism, and the rotating shaft driving mechanism comprises: A third rotating shaft (923) is located at one end of the first rotating shaft and the second rotating shaft and is perpendicular to the first rotating shaft and the second rotating shaft, a wear-resistant layer (9231) is coated on the third rotating shaft, the wear-resistant layer (9231) is close to the middle of the third rotating shaft, and the width of the wear-resistant layer is greater than or equal to the width of the card; A first gear (9212) is arranged at one end of the first rotating shaft; A second gear (9222) is arranged at one end of the second rotating shaft; A third gear (9232) is arranged at one end of the third rotating shaft and cooperates with the first gear. a fourth gear (9234) disposed at the other end of the third rotating shaft and matched with the second gear, when the card needs to be translated to or from the predetermined printing and photographing position, the third rotating shaft rotates in the first rotating direction, drives the first rotating shaft to rotate through the third gear and the first gear, so that the first plurality of translation driving wheels are flipped to the initial position, drives the second rotating shaft to rotate through the fourth gear and the second gear, so that the second plurality of translation driving wheels are flipped to the initial position, and the second sensor (950) detects whether the original translation direction of the card reaches the predetermined printing and photographing position; when the second sensor (950) detects that the original translation direction of the card reaches the predetermined printing and photographing position, the control system controls the translation module to stop moving; when the card in the predetermined printing and photographing position needs to be printed and photographed, the third rotating shaft rotates in the second rotating direction, drives the first rotating shaft to rotate through the third gear and the first gear, so that the first plurality of translation driving wheels are flipped to the printing and photographing position, drives the second rotating shaft to rotate through the fourth gear and the second gear, so that the second plurality of translation driving wheels are flipped to the printing and photographing position; the first rotating direction and the second rotating direction are opposite.

6. The laser inscription system of claim 1, wherein, The sensor further includes a third sensor (330), a fourth sensor (340) and a fifth sensor (350), the third sensor (330) is disposed on one side of the card flipping machine, the fourth sensor (340) and the fifth sensor (350) are respectively disposed at two ends of the card flipping machine in the translation direction of the card, The card flipping machine is located in front of or behind the printing and photographing combined machine, and the card flipping machine includes a translation mechanism and a flipping mechanism, The translation mechanism is configured to drive the card to translate; The flipping mechanism is configured to flip the card to flip the current printing surface of the card from the first printing surface to the second printing surface; The fourth sensor (340) is configured to detect whether the front end of the current card in translation exceeds the card flipping machine; The fifth sensor (350) is configured to detect whether the rear end of the current card in translation exceeds the card flipping machine; The third sensor (330) is configured to detect whether the flipping of the current card is horizontal.

7. The laser inscription system of claim 6, wherein, The translation mechanism of the card flipping machine (30'') includes a plurality of groups of pressure rollers, each group of pressure rollers includes an upper pressure roller (31) and a lower pressure roller, a gap for the card to pass through is disposed between the upper pressure roller and the lower pressure roller, and the contact area of the pressure roller with the card is less than or equal to the contact area of the driving wheel of the card reading and writing device with the card.

8. A method of laser signing, characterized by, The laser signing system includes a control system and a printing and photographing combined machine, a card flipping machine, a second sensor, a third sensor, a fourth sensor, a fifth sensor, a laser printing device and a camera device which are respectively in communication connection with the control system, and the laser signing method includes: the control system acquires to-be-printed information; The translation module of the printing and photographing combined machine table translates the card to be printed in the original direction, the second sensor detects whether the card to be printed reaches the predetermined printing and photographing position, if the card to be printed reaches the predetermined printing and photographing position, the camera obtains the image of the current first printing surface and sends the image to the control system, the control system identifies the image of the first printing surface to determine the type and direction of the first printing surface, and sends the first printing information template matched with the type and direction of the current first printing surface to the laser printing device, and the laser printing device prints the pattern and / or text corresponding to the first printing information template on the first printing surface; The translation module of the printing and photographing combined machine table translates the card to be printed in the original direction, the second sensor detects whether the card to be printed reaches the predetermined printing and photographing position, if the card to be printed reaches the predetermined printing and photographing position, the camera obtains the image of the current first printing surface and sends the image to the control system, the control system identifies the image of the first printing surface to determine the type and direction of the first printing surface, and sends the first printing information template matched with the type and direction of the current first printing surface to the laser printing device, and the laser printing device prints the pattern and / or text corresponding to the first printing information template on the first printing surface; The fourth sensor detects whether the front end of the current card is beyond the card flipping machine table, the fifth sensor detects whether the rear end of the current card is beyond the card flipping machine table, if the front end and the rear end of the current card are both beyond the card flipping machine table, the flipping mechanism flips the card to flip the current printing surface of the card to a second printing surface, the third sensor detects whether the flipped card is horizontal, if yes, the translation mechanism of the card flipping machine table translates the flipped card to the printing and photographing combined machine table, The control system determines the type and direction of the second printing surface based on the type and direction of the first printing surface and the flipping mode of the flipping mechanism, or the camera obtains the image of the second printing surface and sends the image to the control system, the control system identifies the image of the second printing surface to determine the type and direction of the second printing surface, the control system sends the second printing information template matched with the type and direction of the second printing surface to the laser printing device, and the laser printing device prints the pattern and / or text corresponding to the second printing information template on the second printing surface.

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