CN111746153A - Interim license plate printing apparatus - Google Patents

Abstract

The invention discloses a temporary license plate printing device which comprises a conveying device and a printing device, wherein the conveying device is sequentially provided with a paper feeding channel, a transition channel and a paper discharging channel according to the conveying direction of a printing substrate, the paper feeding channel is obliquely arranged, the paper discharging channel is horizontally arranged, a paper rubbing mechanism capable of bringing a printing substrate into the transition channel from the paper feeding channel is arranged between the paper feeding channel and the transition channel, a scanning mechanism for scanning and identifying the authenticity of the printing substrate is arranged on the transition channel, a roller mechanism capable of bringing the printing substrate into the paper discharging channel from the transition channel is arranged between the transition channel and the paper discharging channel, and a cleaning mechanism capable of cleaning the surface of the temporary license plate printing substrate is arranged on the paper discharging channel. By adopting the invention, the risks of printing by using a fake printing substrate and randomly tampering the license plate number can be avoided, the illegal cost is increased, the new vehicle violation or criminal behaviors are reduced, and the supervision loophole is blocked.

Description

Interim license plate printing apparatus

Technical Field

The invention belongs to the technical field of printers, and particularly relates to a temporary license plate printing device.

Background

At present, a temporary license plate is provided for a vehicle owner before a new vehicle is licensed, and the temporary license plate is made of paper and is used by the vehicle owner in the vehicle.

Many car owners do not place interim license plate in the car, when leading to new car to break rules and regulations or the driver uses new car to carry out the criminal act of offending, can not find the car owner, even place interim license plate on the windshield in the car in addition, with current technique, electronic police's camera still can not accomplish the car owner of breaking rules and regulations of using interim license plate of any angle snapshot. This is a difficult problem to break through nationwide, and many cities have regulatory vulnerabilities in this regard.

In order to improve the supervision loophole, some experts propose to change the paper material of the temporary license plate into a plastic sheet with reflective paint, and verify and issue two sheets which are respectively hung on the vehicle head and the vehicle tail. However, no matter the temporary license plate is made of paper sheets, plastic sheets or other base materials, the temporary license plate can be obtained by copying through a simple means, and the risk of randomly modifying the number of the license plate exists. Therefore, it is necessary to design a printing apparatus dedicated to printing temporary license plates.

Disclosure of Invention

The invention aims to provide temporary license plate printing equipment which can avoid the risks of printing by using a fake printing base material and randomly tampering license plate numbers, increase the illegal cost, reduce the occurrence of new vehicle violation or criminal behaviors and block supervision holes.

In order to achieve the purpose, the invention provides temporary license plate printing equipment which comprises a conveying device and a printing device, wherein the conveying device is sequentially provided with a paper feeding channel, a transition channel and a paper discharging channel according to the conveying direction of a printing substrate, the paper feeding channel is obliquely arranged, the paper discharging channel is horizontally arranged, a paper rubbing mechanism capable of bringing one printing substrate into the transition channel from the paper feeding channel is arranged between the paper feeding channel and the transition channel, a scanning mechanism used for scanning and identifying the authenticity of the printing substrate is arranged on the transition channel, a roller mechanism capable of bringing the printing substrate into the paper discharging channel from the transition channel is arranged between the transition channel and the paper discharging channel, and a cleaning mechanism capable of cleaning the surface of the printing substrate is arranged on the paper discharging channel.

In a preferred embodiment of the present invention, the inclination angle of the paper feed path is 45 to 65 degrees.

As a preferred embodiment of the present invention, an inlet supporting plate and a guiding block are disposed on a side of the paper feeding channel close to the transition channel, a plurality of supporting rollers are disposed on a side of the paper feeding channel away from the transition channel, the inlet supporting plate and the supporting rollers are both supported on a bottom surface of a printing substrate on the paper feeding channel, the guiding block is disposed beside the paper feeding channel and above the inlet supporting plate, and an edge of the printing substrate passes through a space between the guiding block and the inlet supporting plate; and a guide inclined plane is arranged on one side of the guide block, which is far away from the transition channel.

As a preferred scheme of the present invention, the paper twisting mechanism includes a first paper pressing wheel, a paper twisting wheel and a first driving unit for driving the paper twisting wheel to rotate, the first paper pressing wheel and the paper twisting wheel are arranged in an up-down opposite manner, and a first pinch channel capable of bringing a printing substrate from the paper feeding channel into the transition channel is formed between the first paper pressing wheel and the paper twisting wheel; a first sensor is arranged on one side, close to the transition channel, of the paper feed channel and is electrically connected with the first driving unit; when the first sensor detects that the printing base material is conveyed to the inlet supporting plate, the system controls the first driving unit to be started, and the paper twisting wheel is driven to drive the printing base material to convey to one side of the transition channel.

As a preferable scheme of the present invention, the scanning mechanism includes a scanning head and a second sensor, the scanning head is disposed above the transition channel, the second sensor is disposed beside the transition channel, and the second sensor is electrically connected to the scanning head, when the second sensor detects that the printing substrate is sent to a position of the transition channel corresponding to the scanning head, the system controls the scanning head to be opened and scans the printing substrate, wherein a unique two-dimensional code is disposed on the printing substrate, and when the scanning head scans the two-dimensional code, the system can automatically identify information of the two-dimensional code and determine authenticity of the printing substrate.

As a preferred scheme of the invention, a transition supporting plate and two anti-warping rollers are arranged on the transition channel, the transition supporting plate supports the bottom surface of the printing substrate on the transition channel, the two anti-warping rollers are arranged on the front side and the rear side of the transition supporting plate in parallel, the left end and the right end of each anti-warping roller are rotatably connected to the transition supporting plate through roller seats respectively, and the printing substrate passes through the space between each anti-warping roller and the transition supporting plate.

As a preferable scheme of the present invention, a roller mechanism is disposed between the transition channel and the paper output channel, the roller mechanism includes a second paper pressing wheel, a conveying roller and a second driving unit for driving the conveying roller to rotate, the second paper pressing wheel and the conveying roller are disposed opposite to each other in an up-down direction, and a second pinch channel capable of bringing the printing substrate from the transition channel into the paper output channel is formed between the second paper pressing wheel and the conveying roller.

As a preferable scheme of the present invention, the cleaning mechanism includes an upper cleaning roller, a lower roller and a cleaning cotton roller, the upper cleaning roller and the lower roller are disposed opposite to each other in a vertical direction, the printing substrate passes between the upper cleaning roller and the lower roller, the cleaning cotton roller is disposed above the upper cleaning roller and contacts with the upper cleaning roller, a rubber adhesion layer is disposed on an outer surface of the upper cleaning roller, and a double-sided tape is disposed on an outer surface of the cleaning cotton roller.

As a preferred scheme of the present invention, an inlet limiting block for preventing the printing substrate from swinging left and right is arranged on one side of the paper feed channel close to the transition channel; the paper outlet channel is close to one side of the printing device, and an outlet limiting block used for preventing the printing substrate from swinging left and right is arranged on one side of the printing device.

As a preferred scheme of the invention, the printing device comprises a printing channel connected with the paper outlet channel, a printing head arranged above the printing channel, a printing roller arranged at the tail end of the printing channel and a carbon ribbon retracting mechanism used for releasing and recovering a carbon ribbon, wherein the printing channel is horizontally arranged, the top end of the printing roller and the printing channel are positioned on the same horizontal plane, the printing head is an end face printing head, the printing end face of the printing head is opposite to the top end of the printing roller, a heating wire is embedded in the printing end face of the printing head, the width of the contact part of the printing end face of the printing head and a printing substrate is 0.3-0.4 mm, two side faces connected with the front side and the rear side of the printing end face of the printing head respectively form an included angle with the horizontal plane where the printing channel is positioned, the printing end face of the printing head is coated with a wear-resistant coating, and the printing device, the third sensor is arranged on the printing channel, and when the third sensor detects that the printing base material is sent to the printing channel, the system controls the printing device to be started and prints the printing base material.

Compared with the prior art, the temporary license plate printing equipment provided by the invention has the beneficial effects that:

(1) the invention designs the paper feed channel into oblique paper feed, which can reduce the length of the printer and reduce the position of occupying the desk;

(2) according to the invention, through the arrangement of the scanning mechanism, the authenticity of the printing base material can be scanned and identified, the risks of printing by using the counterfeit printing base material and randomly tampering the number plate number can be avoided, the illegal cost is increased, the occurrence of new car violation or criminal behaviors is reduced, and the supervision loophole is blocked;

(3) according to the invention, through the arrangement of the cleaning mechanism, the printing substrate is cleaned of dust on the surface (namely the printing surface) before entering the printing device, so that the printing quality of the temporary license plate is ensured;

(4) according to the invention, through the design of the transition channel, the paper feeding channel and the paper discharging channel can be in smooth transition, so that the printing substrate is prevented from being folded and damaged due to excessive bending, meanwhile, the mounting space is provided for the scanning mechanism, and the position of an office table is further reduced;

(5) according to the invention, through the arrangement of the paper twisting mechanism and the roller mechanism, the oblique conveying power and the horizontal conveying power are respectively provided for the printing base material, so that the printing base material can be smoothly transferred from an oblique moving state to a horizontal moving state, and the stability of conveying the printing base material is ensured.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly described below.

FIG. 1 is a schematic structural diagram of a temporary license plate printing device provided by the present invention;

FIG. 2 is a schematic structural diagram (one) of the conveying device, the paper rubbing mechanism, the scanning mechanism, the roller mechanism and the cleaning mechanism;

FIG. 3 is a schematic structural diagram (II) of the conveying device, the paper rubbing mechanism, the scanning mechanism, the roller mechanism and the cleaning mechanism;

FIG. 4 is a schematic view of a printing apparatus;

FIG. 5 is a view showing the arrangement of the mounting of the end face print head and the print roller in the structure shown in FIG. 4;

fig. 6 is a mounting arrangement diagram of a conventional flat print head and print roller.

The labels in the figure are:

1. the device comprises a conveying device, a paper feeding channel, a paper discharging channel, a transition channel, a paper discharging channel, a paper inlet supporting plate, a paper outlet limiting block, a paper inlet limiting block, a paper outlet limiting block and a paper outlet limiting block;

2. the printing device 21, the printing channel 22, the printing head 23, the printing roller 24, the carbon ribbon retracting mechanism 25, the carbon ribbon 26, the third sensor 27 and the printing end face;

3. printing a substrate;

4. a paper twisting mechanism 41, a first paper pressing wheel 42, a paper twisting wheel 43 and a first sensor;

5. a scanning mechanism 51, a scanning head 52 and a second sensor;

6. a roller mechanism 61, a second paper pressing wheel 62 and a conveying roller;

7. cleaning mechanism, 71, upper cleaning roller, 72, lower roller, 73, cleaning cotton wheel.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the machine or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. It should be understood that the terms "first", "second", etc. are used herein to describe various information, but the information should not be limited to these terms, which are only used to distinguish one type of information from another. For example, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information, without departing from the scope of the present invention.

As shown in fig. 1 to 5, a temporary license plate printing apparatus according to a preferred embodiment of the present invention includes a conveying device 1 and a printing device 2, the conveying device 1 is provided with a paper inlet channel 11, a transition channel 12 and a paper outlet channel 13 in sequence according to the conveying direction of the printing substrate 3, the paper feeding channel 11 is arranged obliquely, the paper discharging channel 13 is arranged horizontally, a paper twisting mechanism 4 capable of bringing a printing substrate 3 from the paper feeding channel 11 into the transition channel 12 is arranged between the paper feeding channel 11 and the transition channel 12, the transition channel 12 is provided with a scanning mechanism 5 for scanning and identifying the authenticity of the printing substrate 3, a roller mechanism 6 capable of bringing the printing substrate 3 into the paper outlet channel 13 from the transition channel 12 is arranged between the transition channel 12 and the paper outlet channel 13, and a cleaning mechanism 7 capable of cleaning the surface of the printing substrate 3 is arranged on the paper outlet channel 13.

Therefore, the temporary license plate printing equipment provided by the embodiment of the invention has the key points that: firstly, the paper feed channel 11 is designed to feed paper obliquely, so that the length of the printer can be reduced, and the position occupied by an office table is reduced; secondly, through the arrangement of the scanning mechanism 5, the authenticity of the printing base material 3 can be scanned and identified, the risks of printing by using the counterfeit printing base material 3 and randomly tampering the number of the license plate can be eliminated, the illegal cost is increased, the occurrence of new vehicle violation or criminal behaviors is reduced, and the supervision loophole is blocked; thirdly, through the arrangement of the cleaning mechanism 7, the printing substrate 3 is cleaned of dust on the surface (namely a printing surface) before entering the printing device 2, so that the printing quality of the temporary license plate is ensured; fourthly, through the design of the transition channel 12, the paper feeding channel 11 and the paper discharging channel 13 can be in smooth transition, the printing substrate 3 is prevented from being bent excessively to cause breakage, meanwhile, the mounting space is provided for the scanning mechanism 5, and the position of an office table is further reduced; finally, through the arrangement of the paper twisting mechanism 4 and the roller mechanism 6, oblique conveying power and horizontal conveying power are respectively provided for the printing substrate 3, so that the printing substrate 3 can be smoothly switched from an oblique moving state to a horizontal moving state, and the conveying stability of the printing substrate 3 is ensured.

Illustratively, the inclination angle of the paper feeding path 11 is preferably 45 degrees to 65 degrees, and the inclination angle enables the printing substrate 3 to slide down to the paper feeding side of the paper pickup mechanism 4 under the action of self weight, and simultaneously can avoid the problem that the printing substrate 3 is excessively bent and damaged due to an excessively large inclination angle.

Illustratively, in order to ensure that the printing substrate is fed straightly, the paper feed channel 11 is provided with an inlet support plate 14 and a guide block 15 at a side close to the transition channel 12, the inlet support plate 14 supports the bottom surface of the printing substrate 3 on the paper feed channel 11, the guide block 15 is arranged at a side (specifically, a side wall) of the paper feed channel 11 and above the inlet support plate 14, and an edge portion of the printing substrate 3 passes between the guide block 15 and the inlet support plate 14; paper feed passageway 11 is keeping away from transition passageway 12 one side is equipped with a plurality of bearing rollers 16, bearing roller 16 bearing is in the bottom surface of printing substrate 3 on the paper feed passageway 11, this bearing roller 16's design can reduce paper feed passageway 11 to the resistance of printing substrate 3, conveniently prints substrate 3 landing under the dead weight effect. Further, the guiding block 15 is provided with a guiding inclined surface at a side far away from the transition channel 12, and the guiding inclined surface can facilitate the edge of the printing substrate 3 to be inserted between the guiding block 15 and the inlet support plate 14.

Illustratively, the pickup mechanism 4 includes a first paper pressing wheel 41, a pickup wheel 42 and a first driving unit for driving the pickup wheel 42 to rotate, the first paper pressing wheel 41 and the pickup wheel 42 are arranged opposite to each other in the vertical direction, and a first pinch channel capable of bringing a printing substrate 3 from the paper feeding channel 11 into the transition channel 12 is formed between the first paper pressing wheel 41 and the pickup wheel 42. The first paper pressing wheel 41 has a certain displacement space, and can be close to or far from the paper twisting wheel 42, and the first paper pressing wheel 41 presses the paper twisting wheel 42 or the printing substrate 3 under the action of a spring. Thus, when the first driving unit drives the pickup roller 42 to rotate, an engagement force is formed between the first platen roller 41 and the pickup roller 42 to bring the printing substrate 3 from the paper feeding path 11 into the transition path 12.

Further, the paper feeding channel 11 is provided with a first sensor 43 at a side close to the transition channel 12, the first sensor 43 is arranged on the inlet tray 14, and the first sensor 43 is electrically connected with the first driving unit; when the first sensor 43 detects that the printing substrate 3 is sent to the inlet pallet 14, the system controls the first driving unit to be started, and drives the paper pickup wheel 42 to drive the printing substrate 3 to be conveyed to one side of the transition channel 12. Therefore, the first sensor 43 can control the start and stop of the first driving unit, effectively avoid the generation of invalid work of the first driving unit, and save energy consumption.

Exemplarily, the scanning mechanism 5 includes a scanning head 51 and a second sensor 52, the scanning head 51 is disposed above the transition passage 12, the second sensor 52 is disposed beside the transition passage 12, and the second sensor 52 is electrically connected to the scanning head 51, when the second sensor 52 detects that the printing substrate 3 is sent to the transition passage 12 corresponding to the position of the scanning head 51, the system controls the scanning head 51 to open and scan the printing substrate 3, wherein, a unique two-dimensional code is disposed on the printing substrate 3, and when the scanning head 51 scans the two-dimensional code, the system can automatically identify the two-dimensional code information and determine whether the printing substrate 3 is true or false. If the used printing substrate 3 is judged to be true, printing the temporary number plate applied by the applicant; if the used printing substrate 3 is judged to be false, printing is stopped, and error information is sent. It should be further noted that the second sensor 52 can control the start and stop of the scanning head 51, so as to effectively avoid the generation of the ineffective work of the scanning head 51 and save energy consumption.

Exemplarily, be equipped with transition layer board 17 and two warpage preventing rollers 18 on transition passageway 12, transition layer board 17 bearing is in the bottom surface of printing substrate 3 on transition passageway 12, two warpage preventing rollers 18 set up parallelly in both sides around transition layer board 17, both ends are rotationally connected to through the roller bearing seat respectively about warpage preventing rollers 18 on the transition layer board 17, printing substrate 3 follows warpage preventing rollers 18 with pass through between the transition layer board 17. Due to the design, the printing substrate 3 can be conveyed on the transition channel 12 in a straight mode, the printing substrate 3 is prevented from warping, accurate detection and positioning of the second sensor 52 are facilitated, and the scanning head 51 can scan the two-dimensional code on the printing substrate 3 conveniently.

Illustratively, a roller mechanism 6 is arranged between the transition channel 12 and the paper output channel 13, the roller mechanism 6 includes a second paper pressing wheel 61, a conveying roller 62 and a second driving unit for driving the conveying roller 62 to rotate, the second paper pressing wheel 61 and the conveying roller 62 are arranged in an up-down opposite manner, and a second pinch channel capable of bringing the printing substrate 3 from the transition channel 12 into the paper output channel 13 is formed between the second paper pressing wheel 61 and the conveying roller 62. The second platen 61 has a displacement space that can be close to or away from the transport roller 62, and the second platen 61 presses the transport roller 62 or the print substrate 3 under the action of a spring. Thus, when the second driving unit drives the conveying roller 62 to rotate, an engagement force is formed between the second platen roller 61 and the conveying roller 62 to bring the printing substrate 3 from the transition path 12 into the paper ejection path 13.

It should be noted that the first driving unit and the second driving unit of the present embodiment are the same driving unit, and the paper feeding roller 42 and the conveying roller 62 are synchronously rotated through the gear transmission mechanism.

Illustratively, the cleaning mechanism 7 includes an upper cleaning roller 71, a lower roller 72 and a cleaning cotton wheel 73, the upper cleaning roller 71 and the lower roller 72 are arranged in an up-down opposite manner, the printing substrate 3 passes between the upper cleaning roller 71 and the lower roller 72, the cleaning cotton wheel 73 is arranged above the upper cleaning roller 71 and contacts with the upper cleaning roller 71, a rubber adhesive layer is arranged on the outer surface of the upper cleaning roller 71, and a double-sided adhesive is arranged on the outer surface of the cleaning cotton wheel 73. The design of the lower roller 72 can reduce the resistance of the paper output channel 13 to the printing substrate 3; the upper cleaning roller 71 has a displacement space capable of approaching or separating from the lower roller 72, and the upper cleaning roller 71 presses the lower roller 72 or the printing substrate 3 under the action of a spring. Therefore, when the printing substrate 3 passes through the upper cleaning roller 71 and the lower roller 72, the printing substrate 3 can drive the upper cleaning roller 71 to rotate, the rubber adhesion layer on the upper cleaning roller 71 can adhere dust on the surface (namely a printing surface) of the printing substrate 3, and when the upper cleaning roller 71 rotates to contact with the cleaning cotton wheel 73, the surface of the cleaning cotton wheel 73 consists of double-sided adhesive, so that the dust on the upper cleaning roller 71 can be effectively adhered and cannot fall off, and the surface dust on the printing substrate 3 is cleaned.

It should be noted that, since the cleaning cotton wheel 73 needs to be replaced in time in consideration of the poor dust removal effect caused by the dust on the surface of the cleaning cotton wheel 73, the cleaning cotton wheel 73 is preferably of an easily detachable structure and is convenient to replace.

Illustratively, an inlet stopper 19a for preventing the printing substrate 3 from swinging left and right is disposed on a side of the paper feeding path 11 close to the transition path 12. The inlet stopper 19a is connected to a side of the paper feeding path 11 through a spring and is disposed opposite to the guide block 15. Therefore, the inlet limiting block 19a presses the printing substrate 3 on the side wall of the other side of the paper feeding channel 11 under the action of the spring, so that left and right deviations of the printing substrate 3 in the conveying process are prevented, and the printing precision is improved.

Illustratively, the paper output channel 13 is provided with an outlet stopper 19b at a side close to the printing device 2 for preventing the printing substrate 3 from swinging left and right. The outlet limiting block 19b is connected to the side of the paper discharging channel 13 through a spring. From this, export stopper 19b will print substrate 3 and compress tightly on the lateral wall of play paper passageway 13 opposite side under the spring action to prevent to print substrate 3 and control the deviation about appearing in transportation process, improved the precision of printing.

For example, since the conventional flat printing head has a certain angle with the paper path, and the printing plane of the flat printing head has an adhesive for encapsulating electronic components (e.g., IC), which protrudes and deviates from the top end of the printing roller (as shown in fig. 6), when printing a hard and thick (0.5mm to 1.2mm) printing substrate, the adhesive portion presses the printing substrate to bend the printing substrate, and since the material (e.g., PC, PVC, or PET) of the printing substrate 3 is hard, the heating line of the printing head is difficult to completely adhere to the printing surface of the printing substrate 3, thereby affecting the printing quality and showing the result that the printing is not clear or the characters and images cannot be printed; and the coating of the existing printing head cannot adapt to the scratch of the hard printing substrate 3, and the printing head is easy to damage. Therefore, the printing apparatus 2 of the present embodiment selects the end face print head, and changes the installation manner of the print head and the print roller, specifically: printing device 2 include with go out paper passageway 13 continuous print passageway 21, set up at the printer head 22 of printing passageway 21 top, set up at the printing roller 23 of printing passageway 21 end and be used for releasing and retrieve carbon ribbon winding and unwinding mechanism 24 of carbon ribbon 25, print passageway 21 is the horizontal setting, the top of printing roller 23 with print passageway 21 is located same horizontal plane, printer head 22 is the terminal surface print head, printer head 22 the printing terminal surface 27 with printer head 23's top is relative, printer head 22's printing terminal surface 27 inlays and has set up the line that generates heat. Therefore, by selecting the end face printing head and changing the installation mode of the printing head 22 and the printing roller 23, the invention can ensure that the contact position of the printing end face 27 of the printing head 22 and the printing base material 3 is just positioned at the top end position of the printing roller 23, so that the whole printing base material 3 is printed and conveyed in a flat state, the printing requirement of a hard and thick printing base material is met, the printing base material cannot be bent by pressing, the heating line of the printing head 22 is perfectly attached to the printing base material 3, and high-quality fonts and images are printed.

Illustratively, the width of the printing end face 27 of the printing head 22 in contact with the printing substrate 3 is 0.3mm to 0.4 mm. Due to the design, the width of the contact part of the printing end face 21 of the printing head 22 and the printing base material 3 is only the width of one heating wire, and the perfect fit of the heating wire of the printing head 2 and the printing base material 3 is ensured.

Illustratively, the print head 22 has a wear-resistant coating on the print face 27 to improve the wear resistance of the print head so that the print head is not easily damaged when printing hard print substrates.

Illustratively, the printing device 2 is electrically connected with a third sensor 26, the third sensor 26 is arranged on the printing channel 21, and when the third sensor 26 detects that the printing substrate 3 is sent to the printing channel 21, the system controls the printing device 2 to start and print the printing substrate 3. Therefore, the third sensor 26 can control the start and stop of the printing device 2, effectively avoiding the invalid operation of the printing device 2 and saving energy consumption.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.

Claims (10)

1. The utility model provides an interim license plate printing apparatus, includes conveyor and printing device, its characterized in that, conveyor is equipped with paper feed passageway, transition passageway and goes out the paper passageway according to the direction of delivery who prints the substrate in proper order, the paper feed passageway is the slope setting, it is the level setting to go out the paper passageway, the paper feed passageway with be equipped with between the transition passageway and can follow a printing substrate the paper feed passageway is taken into the paper rubbing mechanism of transition passageway, be equipped with on the transition passageway and be used for scanning and discernment to print the scanning mechanism of substrate true and false, the transition passageway with it follows to be equipped with between the play paper passageway the transition passageway is taken into the gyro wheel mechanism of play paper passageway, be equipped with on the play paper passageway and can clean the clean mechanism of printing substrate surface.

2. The printing apparatus of claim 1, wherein the paper feeding path is inclined at an angle of 45 to 65 degrees.

3. The printing apparatus of claim 2, wherein the paper feeding path is provided with an inlet tray and an inlet block at a side close to the transition path, the paper feeding path is provided with a plurality of supporting rollers at a side far from the transition path, the inlet tray and the supporting rollers support a bottom surface of the printing substrate on the paper feeding path, the inlet block is disposed at a side of the paper feeding path and above the inlet tray, and an edge portion of the printing substrate passes between the inlet block and the inlet tray; and a guide inclined plane is arranged on one side of the guide block, which is far away from the transition channel.

4. The temporary license plate printing device of claim 1, wherein the pickup mechanism comprises a first platen roller, a pickup roller and a first driving unit for driving the pickup roller to rotate, the first platen roller and the pickup roller are arranged in an up-down opposite manner, and a first pinch passage capable of bringing a printed substrate from the paper feed passage into the transition passage is formed between the first platen roller and the pickup roller; a first sensor is arranged on one side, close to the transition channel, of the paper feed channel and is electrically connected with the first driving unit; when the first sensor detects that the printing base material is conveyed to the inlet supporting plate, the system controls the first driving unit to be started, and the paper twisting wheel is driven to drive the printing base material to convey to one side of the transition channel.

5. The temporary license plate printing device of claim 1, wherein the scanning mechanism comprises a scanning head and a second sensor, the scanning head is arranged above the transition passage, the second sensor is arranged beside the transition passage, the second sensor is electrically connected with the scanning head, when the second sensor detects that the printing substrate is sent to the position of the transition passage corresponding to the scanning head, the system controls the scanning head to be opened and scans the printing substrate, a unique two-dimensional code is arranged on the printing substrate, and when the scanning head scans the two-dimensional code, the system can automatically identify information of the two-dimensional code and judge the authenticity of the printing substrate.

6. The printing device for the temporary license plate of claim 1, wherein a transition channel is provided with a transition support plate and two anti-warping rollers, the transition support plate supports the bottom surface of the printing substrate on the transition channel, the two anti-warping rollers are arranged on the front side and the rear side of the transition support plate in parallel, the left end and the right end of each anti-warping roller are rotatably connected to the transition support plate through roller seats respectively, and the printing substrate passes through the anti-warping rollers and the transition support plate.

7. The temporary license plate printing device of claim 1, wherein a roller mechanism is disposed between the transition channel and the paper exit channel, the roller mechanism comprises a second paper pressing wheel, a conveying roller and a second driving unit for driving the conveying roller to rotate, the second paper pressing wheel and the conveying roller are disposed opposite to each other in an up-down direction, and a second pinch channel capable of bringing a printing substrate from the transition channel into the paper exit channel is formed between the second paper pressing wheel and the conveying roller.

8. The printing device for the temporary license plate of claim 1, wherein the cleaning mechanism comprises an upper cleaning roller, a lower roller and a cleaning cotton wheel, the upper cleaning roller and the lower roller are arranged oppositely up and down, the printing substrate passes through the upper cleaning roller and the lower roller, the cleaning cotton wheel is arranged above the upper cleaning roller and is in contact with the upper cleaning roller, a rubber adhesion layer is arranged on the outer surface of the upper cleaning roller, and a double-sided adhesive tape is arranged on the outer surface of the cleaning cotton wheel.

9. The printing device for the temporary license plate of claim 1, wherein an inlet stopper for preventing the printing substrate from swinging left and right is arranged at one side of the paper feed channel close to the transition channel; the paper outlet channel is close to one side of the printing device, and an outlet limiting block used for preventing the printing substrate from swinging left and right is arranged on one side of the printing device.

10. The printing device for the temporary license plate of any one of claims 1 to 9, wherein the printing device comprises a printing channel connected with the paper outlet channel, a printing head arranged above the printing channel, a printing roller arranged at the tail end of the printing channel, and a carbon ribbon retracting mechanism for releasing and recovering a carbon ribbon, the printing channel is horizontally arranged, the top end of the printing roller and the printing channel are positioned on the same horizontal plane, the printing head is an end face printing head, the printing end face of the printing head is opposite to the top end of the printing roller, a heating wire is embedded in the printing end face of the printing head, the width of the contact part of the printing end face of the printing head and a printing base material is 0.3 mm-0.4 mm, two side faces connected with the front side face and the rear side face of the printing end face of the printing head respectively form an included angle with the horizontal plane where the printing channel is positioned, the printing device is characterized in that the printing end face of the printing head is coated with a wear-resistant coating, the printing device is electrically connected with a third sensor, the third sensor is arranged on the printing channel, and when the third sensor detects that a printing substrate is sent to the printing channel, the system controls the printing device to be started and print the printing substrate.

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