Motor vehicle license plate sorting and packaging apparatus

Abstract

The motor vehicle license plate shunting packaging equipment relates to the technical field of license plate shunting packaging, and comprises a license plate buffer feeding device, a license plate finished product verification device, a license plate shunting device and a license plate packaging device; the license plate buffer feeding device comprises a license plate buffer feeding box, a buffer feeding conveyor belt and a buffer feeding translation mechanism; the license plate finished product verification device comprises a verification conveyor belt, a light uniformizing assembly and a verification camera; the license plate shunting device comprises a shunting feeding conveyor belt, a shunting transfer mechanism, a license plate turnover mechanism and a shunting discharging conveyor belt; the license plate packaging device comprises a vacuum conveyor belt, a packaging bag feeding device, a license plate packaging translation device and a solid sealing feeding device; the vacuum conveyor belt is provided with a packaging bag opening mechanism, a packaging bag sealing mechanism and a packaging bag labeling device. The application can realize the whole process operation of motor vehicle license plate shunting packaging, eliminate the manual carrying breakpoints between processes, improve the operation efficiency and sorting and packaging quality, and reduce the labor cost.

Description

Technical Field

[0001] This invention relates to the field of license plate diversion and packaging technology, and more particularly to motor vehicle license plate diversion and packaging equipment. Background Technology

[0002] After vehicle license plates are produced, they undergo several stages including temporary storage, verification, sorting, and packaging. Ultimately, the license plates are processed either for on-site distribution or mail delivery. Currently, these stages primarily rely on a combination of manual operation and simple equipment. Completed license plates are removed piece by piece from the production line and temporarily stored on racks or in turnover boxes. During verification, operators pick up the license plates from the temporary storage area and move them to a separate verification station for visual inspection or comparison using a camera. After verification, operators manually sort the license plates according to the distribution method to the on-site distribution area or the mail packaging area. For mail packaging, operators manually place two license plates and their matching sealing bags into a packaging bag, adjust the bag opening, and then seal it using a handheld heat-sealing device. Some stages also require manual affixing of postal labels or forms. The entire process is handled manually, requiring operators to constantly move between temporary storage areas, verification stations, sorting areas, and packaging stations. The material flow path is long and the frequency of repeated handling is high, making it difficult to form a continuous and efficient assembly line operation.

[0003] The aforementioned manual processing methods have revealed several shortcomings in actual operation. Frequent manual picking and handling of vehicle license plates, with repeated contact of fingers with the surface, easily leaves stains or scratches, affecting the appearance quality of the finished product. Manual judgment of distribution methods and sorting, after prolonged work, can easily lead to sorting errors due to fatigue or negligence, resulting in the wrong placement of mailed vehicle license plates in the on-site distribution area or mixing on-site vehicle license plates into the mailing channel, causing distribution chaos. During mailing and sealing, manual distribution of sealing bags relies on the operator's visual judgment of the vehicle license plate specifications and manual handling, which carries the risk of quantity errors or model mismatches. Handheld heat sealing operations cannot guarantee uniform sealing temperature and pressure, easily resulting in wrinkles, incomplete seals, or burns at the seal, affecting the airtightness and appearance standardization of postal parcels. More importantly, the equipment or workstations in each processing stage are independently laid out, and there is no direct automated transport connection between caching, verification, diversion, and packaging. The transfer of vehicle license plates between processes relies entirely on manual handling, which limits the overall processing efficiency and makes it difficult to achieve full-process quality traceability and intelligent scheduling. This has become a structural bottleneck restricting the improvement of the overall automation level of the vehicle license plate processing production line. Summary of the Invention

[0004] In view of this, the technical problem to be solved by the present invention is to provide a vehicle license plate sorting and packaging device that can realize the fully automated operation of license plates from buffer feeding, finished product verification, automatic sorting to packaging, eliminate manual handling interruptions between processes, improve operation efficiency and sorting and packaging quality, and reduce labor costs.

[0005] To solve the above-mentioned technical problems, the technical solution of the present invention is as follows:

[0006] Motor vehicle license plate diversion and packaging equipment includes a license plate buffer feeding device, a license plate finished product verification device, a license plate diversion device and a license plate packaging device arranged sequentially along the motor vehicle license plate conveying direction;

[0007] The license plate buffer loading device includes a license plate buffer loading box, a buffer loading conveyor belt, and a buffer loading translation mechanism. The license plate buffer loading box is used to store several vehicle license plates stacked along the Y direction and arranged along the X direction in the length direction. A buffer loading lifting mechanism is installed on the license plate buffer loading box, which is used to drive the vehicle license plates to move along the Y direction. The buffer loading conveyor belt is arranged in the X direction in the conveying direction. The buffer loading translation mechanism is located above the license plate buffer loading box and the buffer loading conveyor belt. The moving end of the buffer loading translation mechanism is equipped with a buffer loading suction mechanism that reciprocates along the Y direction.

[0008] The license plate verification device includes a verification conveyor belt, a light distribution component, and a verification camera; the verification conveyor belt is located downstream of the buffer feeding conveyor belt; the light distribution component includes a light distribution cover and light strips installed on both sides of the bottom of the light distribution cover, the light distribution cover spans the verification conveyor belt, and the light strips are inclined towards the inner wall of the light distribution cover; the verification camera is installed on the top of the light distribution cover and faces the verification conveyor belt.

[0009] The license plate diversion device includes a diversion loading conveyor belt, a diversion transfer mechanism, a license plate flipping mechanism, and a diversion unloading conveyor belt. The diversion loading conveyor belt is located downstream of the verification conveyor belt. Manual dispensing stations and the diversion unloading conveyor belt are respectively located on both sides of the diversion loading conveyor belt in the Z direction. The diversion transfer mechanism is located above the diversion loading conveyor belt and can reciprocate along the Z direction. The diversion transfer mechanism includes a diversion transfer suction gripper that can move up and down in the Y direction. The license plate flipping mechanism can reciprocate along the Z direction and straddles the diversion unloading conveyor belt. The license plate flipping mechanism includes two license plate flipping grippers arranged opposite each other in the X direction. Both license plate flipping grippers can reciprocate around the X-axis and synchronously move up and down in the Y direction.

[0010] The license plate packaging device includes a vacuum conveyor belt, the conveying direction of which is along the Z-axis. Along the conveying direction of the vacuum conveyor belt, a packaging bag feeding device, a license plate packaging translation device, and a sealing feeding device are sequentially arranged on the outer side of the vacuum conveyor belt. The packaging bag feeding device is used to feed packaging bags onto the vacuum conveyor belt. The license plate packaging translation device is correspondingly located downstream of the diversion conveyor belt, and is used to carry the vehicle license plate along the Z-axis and translate it along the X-axis towards the vacuum conveyor belt. The sealing feeding device is used to release a sealing bag onto the vehicle license plate during the process of the license plate packaging translation device carrying the vehicle license plate along the X-axis, so that the sealing bag is placed into the packaging bag along with the vehicle license plate. A packaging bag opening mechanism is provided on the vacuum conveyor belt, the packaging bag opening mechanism corresponding to the position of the license plate packaging translation device along the X-axis. Downstream of the packaging bag opening mechanism, a packaging bag sealing mechanism and a packaging bag labeling device are also sequentially arranged along the conveying direction of the vacuum conveyor belt.

[0011] Preferably, the buffer feeding and suction mechanism includes a buffer feeding and suction gripper, the buffer feeding and suction gripper including a buffer feeding suction cup mounting plate and a buffer feeding suction cup adjusting plate; a buffer feeding suction cup is mounted on both the buffer feeding suction cup mounting plate and the buffer feeding suction cup adjusting plate; the buffer feeding suction cup adjusting plate is slidably mounted below the buffer feeding suction cup mounting plate, a self-locking knob plunger is mounted on the buffer feeding suction cup mounting plate, the actuating end of the self-locking knob plunger is located between the buffer feeding suction cup mounting plate and the buffer feeding suction cup adjusting plate; the buffer feeding suction cup adjusting plate has a plurality of self-locking adjustment holes adapted to the actuating end of the self-locking knob plunger;

[0012] The buffer feeding and suction mechanism further includes a buffer feeding adjusting cylinder and a buffer feeding suction cylinder arranged along the Y direction; the buffer feeding adjusting cylinder is installed on the actuating end of the buffer feeding translation mechanism, and the buffer feeding suction cylinder is installed on the actuating end of the buffer feeding adjusting cylinder; the actuating end of the buffer feeding suction cylinder is fixedly connected to the buffer feeding suction cup mounting plate.

[0013] Preferably, the light distribution mask has a cross-section in a vertical plane perpendicular to the X direction that is a semi-ellipse extending upward along the Y direction, and the height of the light distribution mask is greater than its width along the Z direction; the license plate finished product verification device further includes a heat dissipation assembly, which includes a plurality of light distribution mask fans installed on the outer wall of the light distribution mask and a camera fan installed on the top of the light distribution mask, and the air outlet of the camera fan is set towards the verification camera.

[0014] Preferably, the license plate diversion device further includes a diversion translation drive mechanism, the actuating end of which is fixedly connected to the license plate flipping mechanism, and the diversion transfer mechanism and the license plate flipping mechanism are fixedly connected by a transfer translation link; the diversion translation drive mechanism drives the diversion transfer mechanism and the license plate flipping mechanism to reciprocate in the same direction simultaneously.

[0015] Preferably, the license plate flipping mechanism further includes a license plate flipping frame and two license plate flipping drive assemblies mounted thereon; the license plate flipping drive assembly includes a license plate flipping drive cylinder, a license plate flipping gear one, and a license plate flipping gear two; the cylinder body of the license plate flipping drive cylinder is hinged to the license plate flipping frame, the piston rod of the license plate flipping drive cylinder is eccentrically hinged to the license plate flipping gear one, the license plate flipping gear one meshes with the license plate flipping gear two, and the gear shaft of the license plate flipping gear two is fixedly connected to a license plate flipping gripper to drive the license plate flipping gripper to reciprocate around the X-axis.

[0016] Preferably, a diversion temporary storage rack is provided between the diversion feeding conveyor belt and the diversion unloading conveyor belt, and a plurality of diversion temporary storage suction cups are installed on the diversion temporary storage rack; a license plate diversion baffle is provided on the diversion feeding conveyor belt along the Z direction.

[0017] Preferably, the license plate packaging translation device includes a roller conveyor and a translation pushing mechanism; the conveying direction of the roller conveyor is set along the Z direction, and a plurality of license plate packaging feeding rollers are rotatably mounted on the roller conveyor;

[0018] The translational pushing mechanism includes at least two translational synchronous belt assemblies arranged along the X direction, and each translational synchronous belt assembly is arranged sequentially along the Z direction. The translational synchronous belt assembly is disposed between two adjacent license plate packaging and feeding rollers. Each translational synchronous belt assembly has at least two translational teeth on its translational synchronous belt. The top of the translational teeth extends beyond the license plate packaging and feeding roller and is located above it. The four translational teeth on the two translational synchronous belt assemblies together form a receiving area for accommodating the vehicle license plate. The translational teeth are used to push the vehicle license plate, along with the sealing bag already released onto it, into the packaging bag along the X direction.

[0019] The solid sealing feeding device includes a solid sealing vibrating plate and a solid sealing chute disposed at its feeding end. The solid sealing chute is inclined and its end is located above the X-direction translation path of the vehicle license plate.

[0020] Preferably, the packaging bag opening mechanism includes a packaging bag opening cylinder, a packaging bag opening suction nozzle, and a packaging bag opening assembly; the packaging bag opening cylinder is arranged along the Y direction; the packaging bag opening suction nozzle is located below the packaging bag opening cylinder and is fixedly connected to its piston rod; the packaging bag opening assembly includes two opening members arranged at intervals along the Z direction, and the opening members are driven by an opening motor to drive it to reciprocate around the Y axis.

[0021] Preferably, the packaging bag sealing mechanism includes a packaging bag sealing plate, two packaging bag pressure rollers, a packaging bag heat sealing assembly, and an anti-wrinkle smoothing assembly; the two packaging bag pressure rollers are spaced apart along the Z-axis and can rotate around the X-axis; the packaging bag heat sealing assembly is disposed between the two packaging bag pressure rollers, and the packaging bag heat sealing assembly includes a packaging bag heat sealing cylinder and an upper heat pressing mold, with a corresponding lower heat pressing mold disposed below the upper heat pressing mold; the anti-wrinkle smoothing assembly includes a smoothing cylinder and a smoothing crossbar, and the smoothing crossbar is disposed between the upstream packaging bag pressure roller and the packaging bag heat sealing assembly.

[0022] Preferably, the packaging bag labeling device includes a packaging bag label feeder, a packaging bag labeling translation slide, and a packaging bag labeling assembly; the packaging bag labeling translation slide is positioned above the vacuum conveyor belt along the X direction, and the packaging bag labeling assembly includes a packaging bag labeling cylinder and a packaging bag labeling suction cup located below it;

[0023] The vacuum conveyor belt is also equipped with a packaging bag coding device, which is located downstream of the packaging bag labeling device. The packaging bag coding device includes a first packaging bag coding translation slide, a second packaging bag coding translation slide, and a printing nozzle. The first packaging bag coding translation slide is arranged along the Z-axis, the second packaging bag coding translation slide is arranged along the X-axis above the vacuum conveyor belt and installed at the moving end of the first packaging bag coding translation slide, and the printing nozzle is arranged along the Y-axis and installed at the moving end of the second packaging bag coding translation slide.

[0024] After adopting the above technical solution, the beneficial effects of the present invention are:

[0025] Because the vehicle license plate diversion and packaging equipment of the present invention integrates the license plate buffer feeding device, the license plate finished product verification device, the license plate diversion device, and the license plate packaging device sequentially along the vehicle license plate conveying direction, it realizes the fully automated continuous operation of the entire process of vehicle license plate from buffer feeding, finished product verification, automatic diversion to packaging. The license plate buffer feeding device lifts the stacked vehicle license plates one by one to the verification device through the buffer feeding lifting mechanism, the buffer feeding suction mechanism, and the buffer feeding translation mechanism; the license plate finished product verification device provides uniform diffused lighting with a light diffuser and light strip during the vehicle license plate conveying process, and the verification camera completes image acquisition; the license plate diversion device automatically allocates the vehicle license plates to the manual distribution station or the postal distribution station according to the distribution method, and the license plate flipping mechanism flips the postal distribution vehicle license plates; the license plate packaging device uses the translation and pushing mechanism to move and push the vehicle license plates together with the sealing bag released synchronously by the sealing supply device into the packaging bag, and then the packaging bag sealing mechanism and the packaging bag labeling device sequentially complete the sealing and labeling. The various devices are directly connected by conveyor belts, eliminating the breakpoints in the existing manual production line where each process relies on manual handling. This avoids surface damage caused by frequent manual contact with vehicle license plates, eliminates errors caused by fatigue or negligence in manual sorting, significantly improves operational efficiency and distribution accuracy, and effectively reduces labor costs and labor intensity. Attached Figure Description

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0027] Figure 1 This is a schematic diagram of the structure of the vehicle license plate diversion and packaging device according to an embodiment of the present invention;

[0028] Figure 2 yes Figure 1 Top view;

[0029] Figure 3 yes Figure 1 Schematic diagram of the medium-sized license plate buffer feeding device;

[0030] Figure 4 yes Figure 3 A schematic diagram of the feeding and suction mechanism for the medium buffer;

[0031] Figure 5 yes Figure 1 Schematic diagram of the finished product verification device for medium-sized license plates;

[0032] Figure 6 yes Figure 1 Schematic diagram of the medium-sized license plate diversion device;

[0033] Figure 7 yes Figure 6 A diagram showing the movement of vehicle license plates;

[0034] Figure 8 yes Figure 6 A schematic diagram of the medium-sized license plate flipping mechanism;

[0035] Figure 9 yes Figure 1 A schematic diagram of the medium-sized license plate packaging device;

[0036] Figure 10 yes Figure 9 Top view;

[0037] Figure 11 yes Figure 9 A schematic diagram of the structure from the other direction after removing the rack;

[0038] Figure 12 yes Figure 11 Enlarged view of part A;

[0039] Figure 13 yes Figure 11 A schematic diagram of the packaging bag sealing mechanism, packaging bag labeling device, and packaging bag coding device from another direction;

[0040] Figure 14 yes Figure 11 Schematic diagram of the medium-sized plate packaging translation device and the solid sealing feeding device;

[0041] Figure 15 yes Figure 14 Exploded view of the medium-sized plate packaging translation device;

[0042] In the picture:

[0043] 1. License plate buffer feeding device; 11. License plate buffer feeding box; 12. Buffer feeding lifting mechanism; 13. Buffer feeding conveyor belt; 14. Buffer feeding translation mechanism; 15. Buffer feeding suction mechanism; 151. Buffer feeding suction cylinder; 152. Buffer feeding suction gripper; 1521. Buffer feeding suction cup mounting plate; 1522. Buffer feeding suction cup; 1523. Buffer feeding suction cup adjusting plate; 1524. Self-locking knob plunger; 153. Buffer feeding adjusting cylinder;

[0044] 2. License plate finished product verification device; 21. Verification conveyor belt; 22. Light distribution component; 221. Light distribution cover; 222. Light strip; 23. Heat dissipation component; 231. Light distribution cover fan; 232. Camera fan; 24. Verification camera;

[0045] 3. License plate diversion device; 31. License plate diversion frame; 311. Slider rail assembly; 32. Diversion feeding conveyor belt; 321. License plate diversion stop bar; 33. Diversion transfer mechanism; 331. Diversion transfer suction gripper; 332. Diversion transfer lifting cylinder; 34. License plate flipping mechanism; 341. License plate flipping gripper; 342. License plate flipping lifting cylinder; 343. License plate flipping frame; 344. License plate flipping drive assembly; 3441. License plate flipping drive cylinder; 3442. License plate flipping gear one; 3443. License plate flipping gear two; 35. Diversion translation drive mechanism; 36. Manual dispensing station; 37. Diversion unloading conveyor belt; 38. Diversion temporary storage rack; 381. Diversion temporary storage suction cup; 39. Transfer translation linkage;

[0046] 4. License plate sealing device; 41. Vacuum conveyor belt; 411. Sealing bag; 412. Packaging bag; 42. Packaging bag feeding device; 421. Packaging bag storage bin; 422. Packaging bag feeding lifting slide; 423. Packaging bag feeding translation slide; 424. Packaging bag feeding suction cylinder; 425. Packaging bag picking gripper; 43. License plate sealing translation device; 431. Roller conveyor; 4311. License plate sealing... 432. Loading roller; 4321. Translational pushing mechanism; 4322. Translational synchronous belt assembly; 4323. Translational gear; 4324. Encapsulation translational motor; 435. Encapsulation translational mounting plate; 436. Encapsulation translational material blocking mechanism; 4371. Encapsulation translational material blocking cylinder; 4382. Encapsulation translational material blocking plate; 49. Solid sealing feeding device; 401. Solid sealing vibratory feeder; 412. Solid sealing chute; 42. Packaging bag opening. Mechanisms; 451. Packaging bag opening cylinder; 452. Packaging bag opening nozzle; 453. Packaging bag mouth-holding assembly; 4531. Mouth-holding component; 46. Packaging bag sealing mechanism; 461. Packaging bag sealing plate; 462. Packaging bag pressure roller; 463. Packaging bag heat-sealing assembly; 4631. Packaging bag heat-sealing cylinder; 4632. Upper heat-pressing mold; 464. Anti-wrinkle smoothing assembly; 4641. Smoothing cylinder; 4642. 47. Straightening crossbar; 471. Packaging bag labeling device; 472. Packaging bag labeling translation slide; 473. Packaging bag labeling assembly; 4731. Packaging bag labeling cylinder; 4732. Packaging bag labeling suction cup; 48. Packaging bag coding device; 481. Packaging bag coding translation slide one; 482. Packaging bag coding translation slide two; 483. Printer head; 49. Postal delivery station;

[0047] 5. Motor vehicle license plate. Detailed Implementation

[0048] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0049] like Figures 1 to 15 As shown in the figure, the present invention includes a license plate buffer feeding device 1, a license plate finished product verification device 2, a license plate diversion device 3, and a license plate packaging device 4 arranged sequentially along the conveying direction of the vehicle license plate 5.

[0050] The license plate buffer feeding device 1 includes a license plate buffer feeding box 11, a buffer feeding conveyor belt 13, and a buffer feeding translation mechanism 14. The license plate buffer feeding box 11 is used to store several motor vehicle license plates 5 stacked along the Y direction and arranged along the X direction in the length direction. A buffer feeding lifting mechanism 12 is installed on the license plate buffer feeding box 11, which is used to drive the motor vehicle license plates 5 to move along the Y direction. The conveying direction of the buffer feeding conveyor belt 13 is arranged along the X direction. The buffer feeding translation mechanism 14 is located above the license plate buffer feeding box 11 and the buffer feeding conveyor belt 13. The actuating end of the buffer feeding translation mechanism 14 is equipped with a buffer feeding suction mechanism 15 that reciprocates along the Y direction.

[0051] The license plate finished product verification device 2 includes a verification conveyor belt 21, a light uniform component 22, and a verification camera 24. The verification conveyor belt 21 is located downstream of the buffer feeding conveyor belt 13. The light uniform component 22 includes a light uniform cover 221 and light strips 222 installed on both sides of the bottom of the light uniform cover 221. The light uniform cover 221 spans across the verification conveyor belt 21, and the light strips 222 are inclined towards the inner wall of the light uniform cover 221. The verification camera 24 is installed on the top of the light uniform cover 221 and faces the verification conveyor belt 21.

[0052] The license plate diversion device 3 includes a diversion loading conveyor belt 32, a diversion transfer mechanism 33, a license plate flipping mechanism 34, and a diversion unloading conveyor belt 37. The diversion loading conveyor belt 32 is located downstream of the verification conveyor belt 21. Manual dispensing stations 36 and diversion unloading conveyor belts 37 are respectively located on both sides of the diversion loading conveyor belt 32 in the Z direction. The diversion transfer mechanism 33 is located above the diversion loading conveyor belt 32 and can move back and forth in the Z direction. The diversion transfer mechanism 33 includes a diversion transfer suction gripper 331 that can be raised and lowered in the Y direction. The license plate flipping mechanism 34 can move back and forth in the Z direction and straddles the diversion unloading conveyor belt 37. The license plate flipping mechanism 34 includes two license plate flipping grippers 341 arranged opposite each other in the X direction. Both license plate flipping grippers 341 can rotate back and forth around the X axis and rise and fall synchronously in the Y direction.

[0053] The license plate sealing device 4 includes a vacuum conveyor belt 41, which is arranged in the Z-direction. Along the conveying direction of the vacuum conveyor belt 41, a packaging bag feeding device 42, a license plate sealing translation device 43, and a sealing feeding device 44 are sequentially arranged on the outer side of the vacuum conveyor belt 41. The packaging bag feeding device 42 is used to feed packaging bags 412 onto the vacuum conveyor belt 41. The license plate sealing translation device 43 is correspondingly located downstream of the diversion and unloading conveyor belt 37, and is used to carry the vehicle license plate 5 and move it along the Z-direction towards the vacuum conveyor belt in the X-direction. 41. Translation; The sealing and feeding device 44 is used to release the sealing bag 411 onto the vehicle license plate 5 during the process of the license plate sealing translation device 43 carrying the vehicle license plate 5 moving along the X direction, so that the sealing bag 411 is put into the packaging bag 412 together with the vehicle license plate 5; The vacuum conveyor belt 41 is provided with a packaging bag opening mechanism 45, which corresponds to the position of the license plate sealing translation device 43 along the X direction; Downstream of the packaging bag opening mechanism 45 along the conveying direction of the vacuum conveyor belt 41, a packaging bag sealing mechanism 46 and a packaging bag labeling device 47 are also arranged in sequence.

[0054] During operation, the vehicle license plates 5 stored in the license plate buffer loading box 11 are lifted along the Y direction by the buffer loading lifting mechanism 12. The buffer loading translation mechanism 14 drives the buffer loading suction mechanism 15 to transfer the vehicle license plates 5 one by one to the buffer loading conveyor belt 13, completing the orderly temporary storage and automatic single output. The vehicle license plates 5 enter the verification conveyor belt 21 via the buffer loading conveyor belt 13. The light strips 222 on both sides of the bottom of the uniform light cover 221 are tilted to illuminate the inner wall of the uniform light cover 221, forming a uniform diffused light covering the surface of the license plate. The verification camera 24 completes online image acquisition during the transportation of the vehicle license plates 5. The verified vehicle license plate 5 enters the diversion and loading conveyor belt 32. The diversion and transfer mechanism 33 moves to its upper position along the Z direction, and the diversion and transfer suction gripper 331 lifts and lifts the vehicle license plate 5 along the Y direction. If it is an on-site issuance type, the diversion and transfer mechanism 33 transfers the vehicle license plate 5 to the manual issuance station 36. If it is a mail type, the diversion and transfer mechanism 33 transfers two vehicle license plates 5 in sequence and stacks them. Then, the two license plate flipping claws 341 of the license plate flipping mechanism 34 clamp them and flip them around the X axis before releasing them to the diversion and unloading conveyor belt 37. After being flipped, the vehicle license plate 5 enters the license plate sealing device 4. The license plate sealing translation device 43 first carries the vehicle license plate 5 along the Z-axis and then moves it along the X-axis. During the movement of the vehicle license plate 5 along the X-axis, the sealing supply device 44 simultaneously releases the sealing bag 411 onto it, so that the sealing bag 411, along with the vehicle license plate 5, is loaded into the packaging bag 412 on the vacuum conveyor belt 41, whose opening has been opened by the packaging bag opening mechanism 45. Subsequently, the vacuum conveyor belt 41 sequentially sends the packaging bag 412 to the packaging bag sealing mechanism 46 and the packaging bag labeling device 47 to complete the sealing and labeling. Thus, the vehicle license plate 5 achieves fully automated continuous operation from buffer feeding, online verification, automatic diversion to sealing. The devices are directly connected by conveyor belts, eliminating manual handling interruptions between processes and avoiding surface damage caused by frequent manual contact with the vehicle license plate 5. The distribution of the sealing bag 411 is completed simultaneously with the bagging of the vehicle license plate 5, significantly improving work efficiency and sealing quality.

[0055] like Figures 1 to 4As shown, the buffer feeding and suction mechanism 15 includes a buffer feeding and suction gripper 152, which includes a buffer feeding suction cup mounting plate 1521 and a buffer feeding suction cup adjusting plate 1523. The buffer feeding suction cup mounting plate 1521 and the buffer feeding suction cup adjusting plate 1523 are slidably engaged by a slider and slide rail assembly. Buffer feeding suction cups 1522 are mounted on both the buffer feeding suction cup mounting plate 1521 and the buffer feeding suction cup adjusting plate 1523. The buffer feeding suction cup adjusting plate 1523 is slidably mounted below the buffer feeding suction cup mounting plate 1521. A self-locking knob plunger 1524 is mounted on the buffer feeding suction cup mounting plate 1521. The actuating end of 524 is located between the buffer feeding suction cup mounting plate 1521 and the buffer feeding suction cup adjusting plate 1523; the buffer feeding suction cup adjusting plate 1523 has several self-locking adjusting holes (obscured in the figure) adapted to the actuating end of the self-locking knob plunger 1524; the buffer feeding suction mechanism 15 also includes a buffer feeding adjusting cylinder 153 and a buffer feeding suction cylinder 151 arranged along the Y direction; the buffer feeding adjusting cylinder 153 is installed on the actuating end of the buffer feeding translation mechanism 14, and the buffer feeding suction cylinder 151 is installed on the actuating end of the buffer feeding adjusting cylinder 153; the actuating end of the buffer feeding suction cylinder 151 is fixedly connected to the buffer feeding suction cup mounting plate 1521. In this application, the buffer feeding translation mechanism 14 is a linear slide, and the buffer feeding lifting mechanism 12 can be a linear slide or a lead screw and nut assembly driven by a motor, as long as linear drive is achieved.

[0056] When the buffer loading and suction mechanism 15 is working, the buffer loading adjusting cylinder 153 first adjusts the initial working height of the buffer loading and suction cylinder 151 according to the stacking height of the vehicle license plates 5 in the current license plate buffer loading box 11 and maintains it at that position. Each subsequent suction action is completed independently by the buffer loading and suction cylinder 151. The piston rod of the buffer loading and suction cylinder 151 extends downward along the Y direction, driving the buffer loading suction cup mounting plate 1521 and the buffer loading suction cup adjusting plate 1523 to descend synchronously. After the buffer loading suction cup 1522 installed on the buffer loading suction cup mounting plate 1521 and the buffer loading suction cup adjusting plate 1523 contacts the surface of the vehicle license plate 5 and suctions it, the piston rod of the buffer loading and suction cylinder 151 resets, completing the suction of a single vehicle license plate 5. When it is necessary to switch between different sizes of vehicle license plates 5, the self-locking knob plunger 1524 is operated so that its actuating end disengages from the current self-locking adjustment hole. The buffer feeding suction cup adjustment plate 1523 can then slide along the Z-axis relative to the buffer feeding suction cup mounting plate 1521, adjusting the spacing between the buffer feeding suction cups 1522. After reaching the target position, the actuating end of the self-locking knob plunger 1524 engages in the corresponding self-locking adjustment hole, locking the buffer feeding suction cup adjustment plate 1523. Thus, the buffer feeding adjustment cylinder 153 undertakes the production change adjustment function, and the buffer feeding suction cylinder 151 undertakes the cyclic execution function, decoupling height adaptation from frequent actions, reducing the difference in stroke of a single action, and improving the stability and consistency of the suction cycle. The buffer feeding suction cup adjustment plate 1523 and the self-locking knob plunger 1524 work together to achieve rapid adjustment of the spacing between the buffer feeding suction cups 1522, enabling the buffer feeding suction mechanism 15 to adapt to various sizes of vehicle license plates 5 without replacing the suction cup components, making adjustment convenient and positioning reliable.

[0057] like Figure 1 , Figure 2 , Figure 5 As shown, the light distribution mask 221 has a cross-section in a vertical plane perpendicular to the X direction that is a semi-ellipse extending upward along the Y direction, and the height of the light distribution mask 221 is greater than its width along the Z direction; the license plate finished product verification device 2 also includes a heat dissipation component 23, which includes a plurality of light distribution mask fans 231 installed on the outer wall of the light distribution mask 221 and a camera fan 232 installed on the top of the light distribution mask 221, with the air outlet of the camera fan 232 facing the verification camera 24.

[0058] During operation, the light strips 222 installed on both sides of the bottom of the light diffuser 221 are tilted upwards to illuminate the inner wall of the light diffuser 221. After being reflected by the semi-elliptical inner wall, the light forms a large area of ​​uniform diffused light, covering the surface of the vehicle license plate 5 on the verification conveyor belt 21. The height of the light diffuser 221 is greater than its width along the Z direction, allowing the reflected light to spread fully and ensuring that the entire width area of ​​the vehicle license plate 5 is illuminated. The verification camera 24 is located at the top of the light diffuser 221 and takes a picture of the vehicle license plate 5 below through the photo-taking through-hole. Because the light source does not shine directly on the surface of the license plate, but is uniformly diffused after being reflected by the inner wall of the light diffuser 221, the problem of local overexposure and blurry characters caused by the reflection of the coating on the surface of the vehicle license plate 5 is eliminated from the root, making the license plate characters and QR code images clearly distinguishable and significantly improving the verification and recognition accuracy. In the heat dissipation assembly 23, the diffuser fan 231 continuously blows air onto the outer wall of the diffuser 221 to dissipate the heat accumulated by the light strip 222 during long-term operation, preventing deformation or light decay of the diffuser 221. The air outlet of the camera fan 232 is directed towards the verification camera 24 to accelerate the airflow around it and prevent temperature rise from causing image drift or increased noise. The two sets of fans work together to ensure the imaging consistency and operational stability of the license plate verification device 2 under continuous operating conditions.

[0059] like Figure 1 , Figure 2 , Figures 6 to 8 As shown in the diagram, the license plate diversion device 3 also includes a license plate diversion frame 31; the license plate diversion frame 31 is equipped with a diversion feeding conveyor belt 32, a diversion transfer mechanism 33, a license plate flipping mechanism 34, and a diversion translation drive mechanism 35; wherein, the actuating end of the diversion translation drive mechanism 35 is fixedly connected to the license plate flipping mechanism 34, the diversion transfer mechanism 33 and the license plate flipping mechanism 34 are fixedly connected by a transfer translation link 39, and both the diversion transfer mechanism 33 and the license plate flipping mechanism 34 are slidably mounted on the license plate diversion frame 31 through a slider rail assembly 311; the diversion translation drive mechanism 35 drives the diversion transfer mechanism 33 and the license plate flipping mechanism 34 to reciprocate in the same direction simultaneously.

[0060] The diversion and translation drive mechanism 35 serves as the Z-axis transfer power source for the license plate diversion device 3. Its actuating end is directly and fixedly connected to the license plate flipping mechanism 34. Simultaneously, the license plate flipping mechanism 34 and the diversion and transfer mechanism 33 are fixedly connected via a transfer and translation link 39. When the diversion and translation drive mechanism 35 actuates, it drives the license plate flipping mechanism 34 to move along the Z-axis. The license plate flipping mechanism 34, through the transfer and translation link 39, drives the diversion and transfer mechanism 33 to move synchronously and in the same direction. Both move smoothly on the license plate diversion frame 31 via the slider rail assembly 311. Thus, a single power source combined with the rigid connection of the transfer and translation link 39 achieves dual-mechanism linkage, ensuring that the movement of the license plate flipping mechanism 34 and the diversion and transfer mechanism 33 in the Z-axis remains synchronized. This avoids potential deviations or timing conflicts that might occur with independent drives, resulting in a compact structure, reliable transmission, and improved coordination of the diversion operation and equipment stability.

[0061] The license plate flipping mechanism 34 also includes a license plate flipping frame 343 and two license plate flipping drive assemblies 344 mounted thereon; the license plate flipping drive assembly 344 includes a license plate flipping drive cylinder 3441, a license plate flipping gear one 3442 and a license plate flipping gear two 3443; the cylinder body of the license plate flipping drive cylinder 3441 is hinged to the license plate flipping frame 343, the piston rod of the license plate flipping drive cylinder 3441 is eccentrically hinged to the license plate flipping gear one 3442, the license plate flipping gear one 3442 meshes with the license plate flipping gear two 3443, and the gear shaft of the license plate flipping gear two 3443 is fixedly connected to a license plate flipping gripper 341 to drive the license plate flipping gripper 341 to reciprocate around the X-axis.

[0062] When flipping the vehicle license plate 5, the piston rod of the license plate flipping drive cylinder 3441 extends along the Y direction and pushes the license plate flipping gear 3442 to rotate around the X-axis through an eccentric hinge with the license plate flipping gear 3442. The license plate flipping gear 3442 meshes with and drives the license plate flipping gear 3443 to rotate synchronously. The gear shaft of the license plate flipping gear 3443 drives the license plate flipping gripper 341, which is fixedly connected to it, to rotate around the X-axis, thereby realizing the 180° flipping of the two vehicle license plates 5. This structure uses a cylinder linear drive combined with gear meshing transmission to achieve precise rotation of the license plate flipping gripper 341. The flipping angle is accurate and controllable, the transmission is smooth and reliable, and the synchronous action of the license plate flipping drive components 344 on both sides ensures that the two vehicle license plates 5 are subjected to uniform force and have a stable posture during the flipping process. This eliminates the risk of bending or scratching of the vehicle license plate 5 caused by manual flipping operation and improves the efficiency and consistency of the flipping operation.

[0063] In this application, the license plate flipping mechanism 34 further includes a license plate flipping mounting plate and a license plate flipping lifting cylinder 342; wherein, the license plate flipping mounting plate is slidably mounted on the license plate diverter frame 31 via a slider rail assembly 311, and the license plate flipping mounting plate is arranged along the X direction; the license plate flipping lifting cylinder 342 is mounted on the license plate flipping mounting plate; the license plate flipping frame 343 is located below the license plate flipping mounting plate, and the piston rod of the license plate flipping lifting cylinder 342 passes downward along the Y direction through the license plate flipping mounting plate and is fixedly connected to the license plate flipping frame 343.

[0064] The license plate flipping and lifting cylinder 342 is mounted on the license plate flipping mounting plate, and its piston rod is fixedly connected to the license plate flipping frame 343 below. During operation, the piston rod of the license plate flipping and lifting cylinder 342 extends and retracts along the Y-axis, driving the license plate flipping frame 343 and the two license plate flipping drive components 344 and license plate flipping grippers 341 mounted on it to rise and fall synchronously. When it is necessary to grip two stacked vehicle license plates 5, the license plate flipping and lifting cylinder 342 drives the license plate flipping frame 343 to descend, causing the two license plate flipping grippers 341 to reach the gripping position. After gripping, the license plate flipping and lifting cylinder 342 drives the license plate flipping frame 343 to reset and lift the vehicle license plate 5, preparing for subsequent flipping and transfer. This structure uses a single lifting cylinder to drive the entire flipping assembly to rise and fall synchronously, with coordinated movements on both sides, ensuring accurate height positioning when gripping and releasing the vehicle license plate 5, and a smooth and reliable lifting process. Combined with the Z-axis transfer action of the diversion and translation drive mechanism 35, it enables flexible spatial scheduling of the flipping mechanism.

[0065] The diversion and transfer mechanism 33 also includes a diversion and transfer mounting plate and a diversion and transfer lifting cylinder 332. The diversion and transfer mounting plate is slidably mounted on the license plate diversion frame 31 and is positioned along the X-direction. The diversion and transfer lifting cylinder 332 is mounted on the diversion and transfer mounting plate, and its piston rod passes downwards along the Y-direction through the diversion and transfer mounting plate and is fixedly connected to the diversion and transfer suction gripper 331. The diversion and transfer lifting cylinder 332 is used to synchronously lift and lower the diversion and transfer suction gripper 331 and the vehicle license plate 5 it adheres to.

[0066] Preferably, a diversion temporary storage rack 38 is provided between the diversion feeding conveyor belt 32 and the diversion unloading conveyor belt 37. The diversion temporary storage rack 38 is fixedly installed on the license plate diversion machine frame 31, and a number of diversion temporary storage suction cups 381 are installed on the diversion temporary storage rack 38. A license plate diversion baffle 321 is provided on the diversion feeding conveyor belt 32 along the Z direction.

[0067] When the mail-type vehicle license plate 5 is transferred from the diversion and transfer mechanism 33 to the diversion temporary storage rack 38, several diversion temporary storage suction cups 381 installed on the diversion temporary storage rack 38 simultaneously adsorb the lower surface of the vehicle license plate 5, keeping it stably in the predetermined position of the diversion temporary storage rack 38. This prevents the vehicle license plate 5 from shifting or slipping due to equipment vibration or airflow disturbance, ensuring that the position is accurate and consistent when the subsequent license plate flipping mechanism 34 clamps it. The license plate diversion baffle 321 set along the Z direction on the diversion feeding conveyor belt 32 stops the front end of the conveyed vehicle license plate 5, making it stop at the predetermined X direction position on the diversion feeding conveyor belt 32, ensuring that the vehicle license plate 5 is in the preset suction position every time the diversion transfer suction gripper 331 descends to suction. Together, the two components—the diversion and temporary storage suction cup 381—use multi-point vacuum adsorption to achieve non-destructive temporary storage and positioning of the vehicle license plate 5, and the license plate diversion stop bar 321—uses mechanical stop to achieve precise positioning at the end of the conveying process—together improve the reliability of the diversion operation and the accuracy of subsequent flipping and gripping.

[0068] like Figure 1 , Figure 2 , Figures 9 to 15 As shown, the packaging bag feeding device 42 includes a packaging bag storage box 421, a packaging bag feeding lifting slide 422, a packaging bag feeding translation slide 423, a packaging bag feeding suction cylinder 424, and a packaging bag grabber 425. The packaging bag storage box 421 is arranged along the Y-direction and is used to store several packaging bags 412 stacked along the Y-direction, with each packaging bag 412 having its length direction along the X-direction. The packaging bag feeding lifting slide 422 is mounted on the packaging bag storage box 421, and its actuating end extends into the box of the packaging bag storage box 421. The packaging bag feeding translation slide 423 is arranged in the X-direction and spans above the packaging bag storage box 421 and the vacuum conveyor belt 41. The packaging bag feeding suction cylinder 424 is fixedly installed on the actuating end of the packaging bag feeding translation slide 423.

[0069] When the packaging bag feeding device 42 is working, the packaging bag feeding lifting slide 422 drives its moving end to gradually lift the packaging bag 412 in the packaging bag storage box 421 along the Y direction, so that the uppermost packaging bag 412 is always maintained at a fixed bag picking height; the piston rod of the packaging bag feeding suction cylinder 424 extends downward along the Y direction, driving the packaging bag picking gripper 425 to descend and pick up the uppermost packaging bag 412 before resetting; then the packaging bag feeding translation slide 423 moves the packaging bag picking gripper 425 and the picked-up packaging bag 412 from above the packaging bag storage box 421 to above the vacuum conveyor belt 41 along the X direction, and the packaging bag picking gripper 425 releases the packaging bag 412, completing the automatic feeding of a single packaging bag 412. Thus, by coordinating three sets of actions—lifting, suction cup bag retrieval, and horizontal transfer—the entire process of packaging bag 412 from stacking and temporary storage to single-sheet output is mechanized, replacing manual picking and placing of packaging bags 412. The bag supply cycle is stable and controllable, eliminating damage or stains on the surface of packaging bags 412 caused by manual bag retrieval. The bag retrieval action is precise and consistent, providing a reliable material supply guarantee for subsequent bag opening and bag filling processes.

[0070] The license plate packaging translation device 43 includes a roller conveyor 431 and a translation pushing mechanism 432. The conveying direction of the roller conveyor 431 is set along the Z-direction, and a plurality of license plate packaging feeding rollers 4311 are rotatably mounted on the roller conveyor 431. The translation pushing mechanism 432 includes at least two translation synchronous belt assemblies 4321 set along the X-direction, and the two translation synchronous belt assemblies 4321 are controlled by the same packaging translation motor 4323. Each translation synchronous belt assembly 4321 is arranged sequentially along the Z-direction, and the translation synchronous belt assembly 4321 is set between two adjacent license plate packaging feeding rollers 4311. The translation synchronous belt assembly 4321 is synchronized with the Z-direction. Each of the stepping belts is provided with at least two translation teeth 4322. The top of the translation teeth 4322 passes over the license plate sealing and feeding roller 4311 and is located above it. The four translation teeth 4322 on the two translation synchronous belt assemblies 4321 together form a receiving area for accommodating the vehicle license plate 5. The translation teeth 4322 are used to push the vehicle license plate 5 together with the sealing bag 411 released thereon into the packaging bag 412 in the X direction. The sealing feeding device 44 includes a sealing vibrating plate 441 and a sealing chute 442 provided at its feeding end. The sealing chute 442 is inclined and its end is located above the X-direction translation path of the vehicle license plate 5.

[0071] During operation, the license plate packaging feeding roller 4311 of the roller conveyor 431 is driven to rotate in the Z direction, smoothly conveying two stacked vehicle license plates 5 from the diversion unloading conveyor belt 37 to the receiving area of ​​the translation pushing mechanism 432. This receiving area is formed by four translation teeth 4322 on the two translation synchronous belt assemblies 4321. The tops of the translation teeth 4322 pass over the license plate packaging feeding roller 4311, reliably limiting the vehicle license plate 5 from both sides in the X direction. Subsequently, the translation synchronous belt assembly 4321 operates synchronously, and the translation teeth 4322 translate along the synchronous belt in the X direction, smoothly pushing the vehicle license plate 5 together with the sealing bag 411 released onto it by the sealing feeding device 44 into the opened packaging bag 412 on the vacuum conveyor belt 41 in the X direction. When the sealing and feeding device 44 is working, the sealing vibrating plate 441 arranges the sealing bags 411 in an orderly manner and conveys them to the sealing chute 442. The sealing chute 442 is inclined and its end is located above the X-direction translation path of the vehicle license plate 5. When the vehicle license plate 5 is pushed by the translation teeth 4322 along the X-direction, the sealing bags 411 fall accurately onto the vehicle license plate 5 under the action of gravity, realizing the dynamic synchronous distribution of the sealing bags 411 and the vehicle license plate 5. Thus, the roller conveyor 431 realizes the smooth feeding of the vehicle license plate 5 in the Z-direction, the translation teeth 4322 realizes the X-direction pushing and bagging, and the sealing chute 442 realizes the natural falling of the sealing bags 411 by the translation of the license plate itself. The three sets of actions work together to complete the three processes of license plate conveying, sealing and feeding, and bagging in the same moving beat. The structure is compact and the action is smooth. It eliminates the problem of quantity error and model mismatch of the sealing bags 411 in manual distribution and significantly shortens the overall sealing operation time.

[0072] Preferably, the translation pushing mechanism 432 further includes a packaging translation mounting plate 433, a translation timing belt assembly 4321 is rotatably mounted above the packaging translation mounting plate 433, and a packaging translation motor 4323 is mounted below the packaging translation mounting plate 433; a packaging translation blocking mechanism 434 is also mounted on the packaging translation mounting plate 433, the packaging translation blocking mechanism 434 includes a packaging translation blocking cylinder 4341, the piston rod of the packaging translation blocking cylinder 4341 extends upward along the Y direction and is fixedly connected to the packaging translation blocking plate 4342.

[0073] The encapsulated translation mounting plate 433 provides a mounting base for the translation pushing mechanism 432. The translation synchronous belt assembly 4321 is rotatably mounted on it, and the encapsulated translation motor 4323 is mounted below it, forming a layered layout of upper transmission and lower drive. The structure is compact and easy to assemble and maintain. The packaging translational blocking mechanism 434 is used to control the orderly feeding of vehicle license plates 5 in groups: when the current group of vehicle license plates 5 enters the receiving area and the translational teeth 4322 begins to push them along the X direction for bagging, the piston rod of the packaging translational blocking cylinder 4341 extends upward along the Y direction, pushing the packaging translational blocking plate 4342 to rise, stopping the subsequent vehicle license plates 5 waiting to enter the receiving area on the roller conveyor 431, preventing them from entering the pushing station prematurely and causing accumulation or misalignment; after the translational synchronous belt assembly 4321 has rotated one revolution and the translational teeth 4322 has reset, the packaging translational blocking cylinder 4341 drives the packaging translational blocking plate 4342 to descend, allowing the next group of vehicle license plates 5 to enter the receiving area. Thus, the lifting and lowering action of the packaging translational blocking plate 4342 coordinates the continuous conveying of the roller conveyor 431 and the intermittent pushing of the translational pushing mechanism 432, ensuring that the bagging action is stable and the positioning is accurate.

[0074] The packaging bag opening mechanism 45 includes a packaging bag opening cylinder 451, a packaging bag opening suction nozzle 452, and a packaging bag opening assembly 453. The packaging bag opening cylinder 451 is arranged along the Y direction. The packaging bag opening suction nozzle 452 is located below the packaging bag opening cylinder 451 and is fixedly connected to its piston rod. The packaging bag opening assembly 453 includes two opening members 4531 arranged at intervals along the Z direction. The opening members 4531 are driven by an opening motor (not shown in the figure) to drive it to reciprocate around the Y axis.

[0075] When the packaging bag opening mechanism 45 is working, the vacuum conveyor belt 41 transports the packaging bag 412 to the opening station and adsorbs and fixes its lower layer. The piston rod of the packaging bag opening cylinder 451 extends downward along the Y direction, driving the packaging bag opening suction nozzle 452 to descend to contact and adsorb the upper layer of the packaging bag 412. Then, the piston rod returns to its original position along the Y direction, and the packaging bag opening suction nozzle 452 lifts the upper layer of the packaging bag 412, and the bag opening opens immediately. After the bag opening is open, the mouth-opening motor drives two mouth-opening components 4531, which are spaced apart along the Z direction, to rotate back and forth around the Y axis. The mouth-opening components 4531 gradually extend into the packaging bag 412 and open the bag opening outward, shaping the bag opening into a stable open state, providing a regular bag entry channel for the vehicle license plate 5 and the sealing bag 411 to be pushed in. Therefore, by utilizing the suction force of the vacuum conveyor belt 41 to fix the lower layer of the packaging bag 412, there is no need for a separate lower layer clamping mechanism. The bag opening can be completed by the packaging bag opening cylinder 451 driving the packaging bag opening suction nozzle 452 to lift from one side. The structure is simple and the operation is reliable. After the bag is opened, the packaging bag opening component 453 further mechanically expands and shapes the bag opening, avoiding the packaging bag 412 from shrinking and closing due to its own elasticity or electrostatic adsorption. This ensures that when the translation and pushing mechanism 432 pushes the vehicle license plate 5 and the sealing bag 411 into the bag, the bag opening size is sufficient and the posture is stable. The pushing process is smooth and unobstructed, which significantly improves the reliability of the bagging action and the consistency of the operation.

[0076] The packaging bag sealing mechanism 46 includes a packaging bag sealing plate 461, two packaging bag pressure rollers 462, a packaging bag heat sealing assembly 463, and an anti-wrinkle smoothing assembly 464. The packaging bag sealing plate 461 is fixedly installed. The two packaging bag pressure rollers 462 are spaced apart along the Z direction, and the packaging bag pressure rollers 462 are rotatably installed on the packaging bag sealing plate 461 and can rotate around the X axis. The packaging bag heat sealing assembly 463 is disposed between the two packaging bag pressure rollers 462. The packaging bag heat sealing assembly 463 includes a packaging bag heat sealing cylinder 4631 and an upper heat pressing mold 4632. A lower heat pressing mold (obscured in the figure) is correspondingly disposed below the upper heat pressing mold 4632. The anti-wrinkle smoothing assembly 464 includes a smoothing cylinder 4641 and a smoothing crossbar 4642. The smoothing crossbar 4642 is disposed between the upstream packaging bag pressure roller 462 and the packaging bag heat sealing assembly 463.

[0077] When the packaging bag sealing mechanism 46 is working, the packaging bag 412 containing the vehicle license plate 5 and the sealing bag 411 is conveyed to the sealing station along the Z direction by the vacuum conveyor belt 41. Two packaging bag pressure rollers 462, which are spaced apart along the Z direction and can rotate around the X axis, continuously press the bag opening during the movement of the packaging bag 412 to keep the bag opening flat. Subsequently, the packaging bag heat sealing cylinder 4631 of the packaging bag heat sealing assembly 463 drives the upper heat pressing mold 4632 to descend along the Y direction, and cooperates with the lower heat pressing mold to heat-seal the bag opening of the packaging bag 412. After sealing, the smoothing cylinder 4641 of the anti-wrinkle smoothing assembly 464 drives the smoothing crossbar 4642 to move along the Z direction to smooth the bag opening that has just been heat-sealed while it is still hot, eliminating wrinkles at the seal. Thus, the three processes of rolling and flattening, hot pressing and sealing, and smoothing while hot work together. The packaging bag pressure roller 462 rotates as the packaging bag 412 moves, constantly applying pressure to the bag opening to keep it flat before entering the heat sealing process. The packaging bag heat sealing component 463 uses a cylinder pressurization method to ensure that the sealing temperature and pressure are uniform. The anti-wrinkle smoothing component 464 immediately smooths the sealing area after heat sealing to prevent wrinkles from forming after cooling. The sealing strength is stable and reliable, which significantly improves the flatness, sealing strength and appearance standardization of the packaging bag 412 seal, and eliminates the wrinkles, incomplete seals or burns that occur in manual hand-held heat sealing operations.

[0078] The packaging bag labeling device 47 includes a packaging bag label feeder 471, a packaging bag labeling translation slide 472, and a packaging bag labeling assembly 473. The packaging bag labeling translation slide 472 is arranged above the vacuum conveyor belt 41 along the X direction. The packaging bag labeling assembly 473 includes a packaging bag labeling cylinder 4731 and a packaging bag labeling suction cup 4732 located below it.

[0079] When the packaging bag labeling device 47 is working, the packaging bag label feeder 471 provides labels, and the packaging bag labeling translation slide 472 moves the packaging bag labeling component 473 above the packaging bag label feeder 471 along the X direction. The piston rod of the packaging bag labeling cylinder 4731 extends downward along the Y direction, driving the packaging bag labeling suction cup 4732 to descend, pick up the label, and then reset. Subsequently, the packaging bag labeling translation slide 472 moves the packaging bag labeling component 473 with the label adsorbed along the X direction to the vacuum conveyor belt 41 above the sealed packaging bag 412. The packaging bag labeling cylinder 4731 drives the packaging bag labeling suction cup 4732 to descend again, pressing the label onto the surface of the packaging bag 412, completing the labeling action. Therefore, the automatic label picking and attaching is achieved by using a sliding table for transfer and a cylinder for lifting and suction, replacing manual labeling operations. The labeling position is accurate and consistent, and the action rhythm is synchronized with the main packaging line. It can directly attach postal labels with postal information or attach blank labels for subsequent inkjet printing, adapting to the needs of different business scenarios and improving the automation and standardization of packaging operations.

[0080] The packaging bag label feeder 471 is used to provide labels, which can be postal labels with postal information or blank labels. If the label is blank, it needs to be printed with inkjet printing by the packaging bag inkjet printing device 48; or, if information needs to be added to the label, it can also be printed with inkjet printing by the packaging bag inkjet printing device 48.

[0081] Therefore, a packaging bag coding device 48 is also provided on the vacuum conveyor belt 41. The packaging bag coding device 48 is located downstream of the packaging bag labeling device 47. The packaging bag coding device 48 includes a packaging bag coding translation slide 481, a packaging bag coding translation slide 482, and a printing nozzle 483. The packaging bag coding translation slide 481 is arranged along the Z direction, the packaging bag coding translation slide 482 is arranged along the X direction above the vacuum conveyor belt 41 and installed at the moving end of the packaging bag coding translation slide 481, and the printing nozzle 483 is arranged along the Y direction and installed at the moving end of the packaging bag coding translation slide 482.

[0082] When the packaging bag coding device 48 is working, the packaging bag 412 with a label is conveyed to the coding station along the Z-axis by the vacuum conveyor belt 41. The packaging bag coding translation slide 1 481 moves along the Z-axis, driving the packaging bag coding translation slide 2 482. The packaging bag coding translation slide 2 482 moves along the X-axis, driving the print head 483. The two slides work together to position the print head 483 at any position in the XZ plane. The print head 483 then performs coding on the label on the packaging bag 412 along the Y-axis. After coding is completed, the packaging bag 412 continues to be conveyed along the Z-axis by the vacuum conveyor belt 41 and slides down to the downstream postal distribution station 49. Therefore, by using the dual-slide linkage to achieve flexible positioning and printing of the print head 483 on the label surface, the postal tracking number, recipient information and other content can be directly printed on the label. When used in conjunction with the packaging bag labeling device 47, it takes into account both pre-printed label application and blank label online coding business modes. The coding position is accurate and the printed content is clear and standardized, realizing the fully automated connection from packaging to output.

[0083] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. Motor vehicle license plate sorting and packaging apparatus, characterized in that, It includes a license plate buffer feeding device, a license plate finished product verification device, a license plate diversion device, and a license plate packaging device, which are arranged sequentially along the direction of vehicle license plate conveying; The license plate buffer loading device includes a license plate buffer loading box, a buffer loading conveyor belt, and a buffer loading translation mechanism. The license plate buffer loading box is used to store several vehicle license plates stacked along the Y direction and arranged along the X direction in the length direction. A buffer loading lifting mechanism is installed on the license plate buffer loading box, which is used to drive the vehicle license plates to move along the Y direction. The buffer loading conveyor belt is arranged in the X direction in the conveying direction. The buffer loading translation mechanism is located above the license plate buffer loading box and the buffer loading conveyor belt. The moving end of the buffer loading translation mechanism is equipped with a buffer loading suction mechanism that reciprocates along the Y direction. The license plate verification device includes a verification conveyor belt, a light distribution component, and a verification camera; the verification conveyor belt is located downstream of the buffer feeding conveyor belt; the light distribution component includes a light distribution cover and light strips installed on both sides of the bottom of the light distribution cover, the light distribution cover spans the verification conveyor belt, and the light strips are inclined towards the inner wall of the light distribution cover; the verification camera is installed on the top of the light distribution cover and faces the verification conveyor belt. The license plate diversion device includes a diversion loading conveyor belt, a diversion transfer mechanism, a license plate flipping mechanism, and a diversion unloading conveyor belt. The diversion loading conveyor belt is located downstream of the verification conveyor belt. Manual dispensing stations and the diversion unloading conveyor belt are respectively located on both sides of the diversion loading conveyor belt in the Z direction. The diversion transfer mechanism is located above the diversion loading conveyor belt and can reciprocate along the Z direction. The diversion transfer mechanism includes a diversion transfer suction gripper that can move up and down in the Y direction. The license plate flipping mechanism can reciprocate along the Z direction and straddles the diversion unloading conveyor belt. The license plate flipping mechanism includes two license plate flipping grippers arranged opposite each other in the X direction. Both license plate flipping grippers can reciprocate around the X-axis and synchronously move up and down in the Y direction. The license plate packaging device includes a vacuum conveyor belt, the conveying direction of which is along the Z-axis. Along the conveying direction of the vacuum conveyor belt, a packaging bag feeding device, a license plate packaging translation device, and a sealing feeding device are sequentially arranged on the outer side of the vacuum conveyor belt. The packaging bag feeding device is used to feed packaging bags onto the vacuum conveyor belt. The license plate packaging translation device is correspondingly located downstream of the diversion conveyor belt, and is used to carry the vehicle license plate along the Z-axis and translate it along the X-axis towards the vacuum conveyor belt. The sealing feeding device is used to release a sealing bag onto the vehicle license plate during the process of the license plate packaging translation device carrying the vehicle license plate along the X-axis, so that the sealing bag is placed into the packaging bag along with the vehicle license plate. A packaging bag opening mechanism is provided on the vacuum conveyor belt, the packaging bag opening mechanism corresponding to the position of the license plate packaging translation device along the X-axis. Downstream of the packaging bag opening mechanism, a packaging bag sealing mechanism and a packaging bag labeling device are also sequentially arranged along the conveying direction of the vacuum conveyor belt.

2. The motor vehicle license plate shuffler packaging apparatus of claim 1, wherein, The buffer feeding and suction mechanism includes a buffer feeding and suction gripper, which includes a buffer feeding suction cup mounting plate and a buffer feeding suction cup adjusting plate. A buffer feeding suction cup is mounted on both the buffer feeding suction cup mounting plate and the buffer feeding suction cup adjusting plate. The buffer feeding suction cup adjusting plate is slidably mounted below the buffer feeding suction cup mounting plate. A self-locking rotary plunger is mounted on the buffer feeding suction cup mounting plate, and the actuating end of the self-locking rotary plunger is located between the buffer feeding suction cup mounting plate and the buffer feeding suction cup adjusting plate. The buffer feeding suction cup adjusting plate has several self-locking adjustment holes adapted to the actuating end of the self-locking rotary plunger. The buffer feeding and suction mechanism further includes a buffer feeding adjusting cylinder and a buffer feeding suction cylinder arranged along the Y direction; the buffer feeding adjusting cylinder is installed on the actuating end of the buffer feeding translation mechanism, and the buffer feeding suction cylinder is installed on the actuating end of the buffer feeding adjusting cylinder; the actuating end of the buffer feeding suction cylinder is fixedly connected to the buffer feeding suction cup mounting plate.

3. The vehicle license plate diversion and packaging equipment as described in claim 1, characterized in that, The light distribution mask has a cross-section in a vertical plane perpendicular to the X direction that is a semi-ellipse extending upward along the Y direction, and the height of the light distribution mask is greater than its width along the Z direction; the license plate finished product verification device also includes a heat dissipation assembly, which includes a plurality of light distribution mask fans installed on the outer wall of the light distribution mask and a camera fan installed on the top of the light distribution mask, with the air outlet of the camera fan facing the verification camera.

4. The vehicle license plate diversion and packaging equipment as described in claim 1, characterized in that, The license plate diversion device also includes a diversion translation drive mechanism. The actuating end of the diversion translation drive mechanism is fixedly connected to the license plate flipping mechanism. The diversion transfer mechanism and the license plate flipping mechanism are fixedly connected by a transfer translation link. The diversion translation drive mechanism drives the diversion transfer mechanism and the license plate flipping mechanism to reciprocate in the same direction simultaneously.

5. The vehicle license plate diversion and packaging equipment as described in claim 1, characterized in that, The license plate flipping mechanism further includes a license plate flipping frame and two license plate flipping drive assemblies mounted thereon; the license plate flipping drive assembly includes a license plate flipping drive cylinder, a license plate flipping gear one, and a license plate flipping gear two; the cylinder body of the license plate flipping drive cylinder is hinged to the license plate flipping frame, the piston rod of the license plate flipping drive cylinder is eccentrically hinged to the license plate flipping gear one, the license plate flipping gear one meshes with the license plate flipping gear two, and the gear shaft of the license plate flipping gear two is fixedly connected to a license plate flipping gripper to drive the license plate flipping gripper to reciprocate around the X-axis.

6. The vehicle license plate diversion and packaging equipment as described in claim 1, characterized in that, A diversion temporary storage rack is provided between the diversion feeding conveyor belt and the diversion unloading conveyor belt, and a number of diversion temporary storage suction cups are installed on the diversion temporary storage rack; a license plate diversion baffle is provided on the diversion feeding conveyor belt along the Z direction.

7. The vehicle license plate diversion and packaging equipment as described in claim 1, characterized in that, The license plate packaging translation device includes a roller conveyor and a translation pushing mechanism; the conveying direction of the roller conveyor is set along the Z direction, and a plurality of license plate packaging feeding rollers are rotatably mounted on the roller conveyor; The translation and pushing mechanism includes at least two translation synchronous belt assemblies arranged along the X direction. Each translation synchronous belt assembly is arranged sequentially along the Z direction. The translation synchronous belt assembly is located between two adjacent license plate packaging and feeding rollers. Each translation synchronous belt assembly has at least two translation teeth. The top of the translation teeth extends beyond the license plate packaging and feeding roller and is located above it. The four translation teeth on the two translation synchronous belt assemblies together form a receiving area for accommodating motor vehicle license plates. The translation teeth are used to push the vehicle license plate along with the sealing bag that has been released onto it into the packaging bag along the X direction. The solid sealing feeding device includes a solid sealing vibrating plate and a solid sealing chute disposed at its feeding end. The solid sealing chute is inclined and its end is located above the X-direction translation path of the vehicle license plate.

8. The motor vehicle license plate diversion and packaging equipment as described in claim 1, characterized in that, The packaging bag opening mechanism includes a packaging bag opening cylinder, a packaging bag opening suction nozzle, and a packaging bag opening assembly; the packaging bag opening cylinder is arranged along the Y direction; the packaging bag opening suction nozzle is located below the packaging bag opening cylinder and is fixedly connected to its piston rod; the packaging bag opening assembly includes two opening members arranged at intervals along the Z direction, and the opening members are driven by an opening motor to drive it to reciprocate around the Y axis.

9. The motor vehicle license plate diversion and packaging equipment as described in claim 1, characterized in that, The packaging bag sealing mechanism includes a packaging bag sealing plate, two packaging bag pressure rollers, a packaging bag heat sealing assembly, and an anti-wrinkle smoothing assembly. The two packaging bag pressure rollers are spaced apart along the Z-axis and can rotate around the X-axis. The packaging bag heat sealing assembly is disposed between the two packaging bag pressure rollers. The packaging bag heat sealing assembly includes a packaging bag heat sealing cylinder and an upper heat pressing mold. A lower heat pressing mold that is adapted to the upper heat pressing mold is disposed below the upper heat pressing mold. The anti-wrinkle smoothing assembly includes a smoothing cylinder and a smoothing crossbar. The smoothing crossbar is disposed between the upstream packaging bag pressure roller and the packaging bag heat sealing assembly.

10. The motor vehicle license plate diversion and packaging equipment as described in claim 1, characterized in that, The packaging bag labeling device includes a packaging bag label feeder, a packaging bag labeling translation slide, and a packaging bag labeling assembly; the packaging bag labeling translation slide is positioned above the vacuum conveyor belt along the X direction, and the packaging bag labeling assembly includes a packaging bag labeling cylinder and a packaging bag labeling suction cup located below it; The vacuum conveyor belt is also equipped with a packaging bag coding device, which is located downstream of the packaging bag labeling device. The packaging bag coding device includes a first packaging bag coding translation slide, a second packaging bag coding translation slide, and a printing nozzle. The first packaging bag coding translation slide is arranged along the Z-axis, the second packaging bag coding translation slide is arranged along the X-axis above the vacuum conveyor belt and installed at the moving end of the first packaging bag coding translation slide, and the printing nozzle is arranged along the Y-axis and installed at the moving end of the second packaging bag coding translation slide.

Images