A high-stability filing stamp printer

Abstract

The utility model discloses a high stability's filing chapter printer, including printing platform, frame, print head, vertical movement mechanism and horizontal movement mechanism, the frame includes two vertical boards and is connected in two the crossbeam between vertical board, the horizontal movement mechanism includes horizontal shift board and is used for driving the first drive assembly of horizontal shift board horizontal shift, be provided with two mutually parallel first guide on the crossbeam, be provided with two first sliding block on the horizontal shift board, vertical movement mechanism sets up on the horizontal shift board, the one side of horizontal shift board is close to the crossbeam and is provided with first photoelectricity response sheet, the one side of crossbeam is provided with at least two first groove type photoelectricity inductor, and the first groove type photoelectricity inductor is used for sensing the entry or removal of first photoelectricity response sheet. The utility model can avoid the deformation of the collision of first photoelectricity response sheet and both sides vertical board, and, can reduce the quantity of first photoelectricity response sheet, reduce cost.

Description

Technical Field

[0001] This utility model relates to the field of printer technology, specifically to a highly stable archive stamp printer. Background Technology

[0002] An archive stamp printer is a device specifically designed to print archive stamp numbers. It is mainly used to replace the traditional manual stamping method, improve archiving efficiency, and facilitate the standardized management of archives.

[0003] Existing archival stamp printers include a printing platform, a gantry, a lateral movement mechanism, a vertical movement mechanism, and a printhead. The lateral movement mechanism drives the printhead to move laterally, and the vertical movement mechanism drives the printhead to move vertically. During printing, paper is placed on the printing platform, and the lateral and vertical movement mechanisms work together to drive the printhead to move along a set trajectory. The printhead then sprays ink onto the paper to achieve printing.

[0004] The lateral movement mechanism includes a lateral moving base and a driving component for driving the lateral movement of the lateral moving base. Sensing plates are arranged on both sides of the lateral moving base, protruding from the base. Slotted photoelectric sensors are respectively installed on the inner sides of the two side columns of the gantry frame. When the driving component drives the lateral moving base to the leftmost or rightmost end, the sensing plates on the left or right side of the lateral moving base enter the grooves of the slotted photoelectric sensors on the left or right side. The sensing plates block the light path of the slotted photoelectric sensors, triggering a signal. Upon receiving the signal from the slotted photoelectric sensors, the driving component stops moving, thus enabling the positioning of the extreme positions at both ends of the lateral moving base.

[0005] However, signal transmission delay, slow braking response time of the drive components, and improper deceleration curve settings can all lead to mechanical overshoot of the transverse slide, causing the sensing element on the transverse slide to collide with the column. Moreover, the sensing element is relatively thin, and it is easy for it to deform when it collides with the column, which in turn causes interference between the sensing element and the groove of the slotted photoelectric sensor. Utility Model Content

[0006] In order to overcome the shortcomings of the prior art, this utility model provides a highly stable archiving stamp printer that can prevent the first photoelectric sensor from colliding with the vertical plates on both sides and deforming it. Moreover, it can reduce the number of the first photoelectric sensor and reduce costs.

[0007] The technical solution adopted by this utility model to solve its technical problem is:

[0008] A highly stable archiving stamp printer, comprising:

[0009] A printing platform is used to hold paper.

[0010] The frame includes two vertical plates and a crossbeam connecting the two vertical plates, the two vertical plates being positioned on top of the printing platform;

[0011] The print head is used to print the archival stamp;

[0012] A vertical moving mechanism is used to drive the print head to move vertically.

[0013] A lateral moving mechanism, used to drive the print head to move laterally, is disposed on the crossbeam and includes a lateral moving plate and a first driving component for driving the lateral moving plate to move laterally. Two parallel first guide rails are disposed on the crossbeam, and two first sliders are disposed on the lateral moving plate. The first sliders are slidably connected to the first guide rails. A vertical moving mechanism is disposed on the lateral moving plate. A first photoelectric sensor is disposed on the side of the lateral moving plate near the crossbeam, and at least two first slotted photoelectric sensors are disposed on one side of the crossbeam. The first slotted photoelectric sensors are used to sense the entry or exit of the first photoelectric sensor.

[0014] As a further improvement to the above technical solution, the first drive assembly includes a first motor, a drive wheel, a driven wheel, and a belt. A first mounting plate is provided on one of the vertical plates, the first motor is mounted on the first mounting plate, the drive wheel is disposed on the output shaft of the first motor, the driven wheel is rotatably connected to the other vertical plate, the belt is wound around the drive wheel and the driven wheel, the transverse plate is connected to the belt, the drive wheel and the driven wheel are the same size, and the center line connecting the drive wheel and the driven wheel is parallel to the first guide rail.

[0015] As a further improvement to the above technical solution, the vertical moving mechanism includes a second motor, a lead screw, a lead screw nut, and a nut seat. A second mounting plate is provided on the horizontal moving plate, the second motor is mounted on the second mounting plate, the lead screw is connected to the output shaft of the second motor, the lead screw is vertically arranged, the lead screw nut is threadedly connected to the lead screw, the lead screw nut is fixedly connected to the nut seat, and the print head is connected to the nut seat.

[0016] As a further improvement to the above technical solution, a second guide rail is provided on the transverse plate, and a second slider is provided on the nut seat. The second guide rail is vertically arranged, and the second slider is slidably connected to the second guide rail.

[0017] As a further improvement to the above technical solution, a second photoelectric sensor is also provided on one side of the nut seat, and a second slotted photoelectric sensor is provided on the second mounting plate. The second slotted photoelectric sensor is used to sense the entry or exit of the second photoelectric sensor.

[0018] As a further improvement to the above technical solution, a humidification box is provided on the printing platform, and the print head includes a housing and an inkjet head disposed on the housing. The inkjet head protrudes from the bottom of the housing, and the humidification box is used to humidify the inkjet head. A limit sensing component is provided on the housing, and the limit sensing component is used to sense the position of the inkjet head entering the humidification box.

[0019] As a further improvement to the above technical solution, the limiting sensing component includes a third groove-shaped photoelectric sensor, a pressure limiting post, a spring, a fixing plate, and two fixing posts. The two fixing posts are vertically connected to the bottom wall of the housing. The two sides of the third groove-shaped photoelectric sensor are respectively fixed to the top of the two fixing posts. The two sides of the fixing plate are respectively fixed to the two fixing posts. A boss is provided in the middle of the pressure limiting post. The spring is sleeved on the upper part of the pressure limiting post. A guide hole is opened in the middle of the fixing plate, through which the upper part of the pressure limiting post passes. The lower part of the pressure limiting post penetrates the bottom of the print head. The third groove-shaped photoelectric sensor is used to sense the upper part of the pressure limiting post entering or leaving.

[0020] As a further improvement to the above technical solution, a laser positioning assembly is provided on the frame. The laser positioning assembly includes a bracket, a U-shaped fixing frame disposed on the bracket, a clamping sleeve disposed in the U-shaped fixing frame, and a laser emitter disposed in the clamping sleeve. The two ends of the bracket are respectively connected to the two vertical plates, and the emitting end of the laser emitter faces the printing platform. The laser emitter is used to emit a laser beam.

[0021] As a further improvement to the above technical solution, the two ends of the U-shaped fixing frame are folded outward to form connecting ears. The connecting ears are fixed to the bracket by the first bolt. The connecting ears are provided with waist-shaped holes. The length direction of the waist-shaped holes extends laterally. The bracket is provided with a plurality of first threaded holes. The first bolt passes through the waist-shaped holes and screws into the first threaded holes.

[0022] As a further improvement to the above technical solution, an angle adjustment assembly is provided between the clamping sleeve and the U-shaped fixing frame. The angle adjustment assembly includes an angle adjustment frame, two second bolts and two third bolts. The angle adjustment frame has a second threaded hole and a third threaded hole on both sides. The U-shaped fixing frame has a through hole and an arc-shaped elongated hole on both sides. The arc-shaped elongated hole is concentric with the through hole. The second bolt passes through the through hole and screws into the second threaded hole. The third bolt passes through the arc-shaped elongated hole and screws into the third threaded hole.

[0023] The beneficial effects of this utility model are as follows: This utility model provides a highly stable archiving stamp printer. By placing the first slotted photoelectric sensor on one side of the crossbeam and the first photoelectric sensor sheet on the side of the transverse plate near the crossbeam, the first photoelectric sensor sheet is hidden inside the transverse plate. This fully utilizes the internal space and prevents deformation caused by external impacts. Simultaneously, when the transverse plate moves the first photoelectric sensor sheet laterally, the first photoelectric sensor sheet enters or exits the groove of the first slotted photoelectric sensor, thus preventing collisions and deformation between the first photoelectric sensor sheet and the vertical plates on both sides. Moreover, only one first photoelectric sensor sheet is needed, reducing the number of first photoelectric sensor sheets and lowering costs. Attached Figure Description

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] Figure 1 This is a structural schematic diagram provided by an example of this utility model;

[0026] Figure 2 yes Figure 1 A schematic diagram of a partial structure;

[0027] Figure 3 yes Figure 2 Another structural diagram from a different perspective;

[0028] Figure 4 yes Figure 1 A schematic diagram of the printhead structure;

[0029] Figure 5 yes Figure 4 A sectional view;

[0030] Figure 6 yes Figure 1 A schematic diagram of the laser positioning component.

[0031] Figure label:

[0032] 100-Printing platform;

[0033] 200 - Frame, 210 - Vertical plate, 220 - Horizontal beam;

[0034] 300-Print head, 310-Housing, 320-Inkjet head, 330-Limit sensing assembly, 331-Third slot type photoelectric sensor, 332-Pressure limit post, 333-Spring, 334-Fixing plate, 335-Fixing post, 336-Boss;

[0035] 400 - Vertical moving mechanism, 410 - Second motor, 420 - Lead screw, 430 - Lead screw nut, 440 - Nut seat, 450 - Second mounting plate, 460 - Second guide rail, 470 - Second slider, 480 - Second photoelectric sensor, 490 - Second slotted photoelectric sensor;

[0036] 500 - Lateral movement mechanism, 510 - Lateral plate, 520 - First drive assembly, 521 - First motor, 522 - Drive wheel, 523 - Driven wheel, 524 - Belt, 525 - First mounting plate, 530 - First guide rail, 540 - First slider, 550 - First photoelectric sensor, 560 - First slotted photoelectric sensor;

[0037] 600-Moisturizing Box;

[0038] 700-Laser positioning component, 710-Bracket, 711-First threaded hole, 720-U-shaped fixing bracket, 721-Connecting ear, 722-Oval hole, 723-Through hole, 724-Arc-shaped elongated hole, 730-Clamping sleeve, 740-Laser emitter, 750-Angle adjustment bracket, 751-Second threaded hole, 752-Third threaded hole. Detailed Implementation

[0039] The following will clearly and completely describe the concept, specific structure, and technical effects of this utility model in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are all within the scope of protection of this utility model. Furthermore, all connections / linkages involved in the patent do not simply refer to direct contact between components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. The various technical features in this utility model can be combined interactively without contradicting each other.

[0040] Reference Figures 1 to 3 This utility model provides a highly stable archiving stamp printer, including a printing platform 100, a frame 200, a print head 300, a vertical moving mechanism 400, and a horizontal moving mechanism 500. The printing platform 100 is used to carry paper, the print head 300 is used to print archiving stamps, and the frame 200 is used to support the vertical moving mechanism 400 and the horizontal moving mechanism 500. The vertical moving mechanism 400 is used to drive the print head 300 to move vertically, and the horizontal moving mechanism 500 is used to drive the print head 300 to move horizontally.

[0041] The frame 200 includes two vertical plates 210 and a crossbeam 220 connecting the two vertical plates 210. The two vertical plates 210 are located on top of the printing platform 100.

[0042] Structurally, the lateral moving mechanism 500 includes a transverse plate 510 and a first driving assembly 520 for driving the transverse plate 510 to move laterally, which is mounted on the crossbeam 220. The crossbeam 220 is provided with two parallel first guide rails 530, and the transverse plate 510 is provided with two first sliders 540, which are slidably connected to the first guide rails 530. The vertical moving mechanism 400 is mounted on the transverse plate 510. A first photoelectric sensor 550 is provided on the side of the transverse plate 510 near the crossbeam 220, and at least two first slotted photoelectric sensors 560 are provided on one side of the crossbeam 220. The first slotted photoelectric sensors 560 are used to sense the entry or exit of the first photoelectric sensor 550.

[0043] On the one hand, when the first drive assembly 520 drives the transverse plate 510 to move laterally, the transverse plate 510 drives the vertical moving mechanism 400 and the print head 300 to move together. The two first sliders 540 on the transverse plate 510 move along the length direction of the two first guide rails 530 respectively, thereby ensuring the stability of the print head 300 when moving laterally, preventing the print head 300 from shaking, and improving the printing quality of the archival stamp.

[0044] On the other hand, the first slotted photoelectric sensor 560 is located on one side of the crossbeam 220, which is the main load-bearing structure of the frame 200. Its rigidity is much higher than that of the vertical plates 210 on both sides, which can improve the installation stability of the first slotted photoelectric sensor 560 and prevent shaking during equipment operation. The first photoelectric sensor 550 is located on the side of the transverse plate 510 near the crossbeam 220, so that the first photoelectric sensor 550 is hidden inside the transverse plate 510. This can make full use of the internal space and prevent external force from impacting the first photoelectric sensor 550 and causing deformation. At the same time, when the transverse plate 510 moves the first photoelectric sensor 550 laterally, the first photoelectric sensor 550 enters or exits the groove of the first slotted photoelectric sensor 560, thereby avoiding the first photoelectric sensor 550 from colliding with the vertical plates 210 on both sides and deforming. Moreover, only one first photoelectric sensor 550 needs to be set, which can reduce the number of first photoelectric sensor 550s and reduce costs.

[0045] In this embodiment, there are three first slotted photoelectric sensors 560, which are arranged sequentially in the horizontal direction. The three first slotted photoelectric sensors 560 are located at the left extreme position, the printing position, and the right extreme position, respectively.

[0046] When the first drive assembly 520 drives the transverse plate 510 to move laterally, the transverse plate 510 causes the first photoelectric sensor 550 to enter the first slotted photoelectric sensor 560 at different positions. The corresponding first slotted photoelectric sensor 560 triggers a signal, and the first drive assembly 520 stops operating. Specifically, when the first photoelectric sensor 550 enters the first slotted photoelectric sensor 560 at the left limit position, the printing position, or the right limit position, the first drive assembly 520 stops operating. On the one hand, this can accurately control the printing position of the print head 300; on the other hand, it can prevent the transverse plate 510 from exceeding its travel range and colliding with the frame 200, thereby protecting the hardware from damage.

[0047] In some preferred embodiments, the first drive assembly 520 includes a first motor 521, a drive wheel 522, a driven wheel 523, and a belt 524. A first mounting plate 525 is provided on one of the vertical plates 210, the first motor 521 is mounted on the first mounting plate 525, the drive wheel 522 is disposed on the output shaft of the first motor 521, the driven wheel 523 is rotatably connected to another vertical plate 210, the belt 524 is wound around the drive wheel 522 and the driven wheel 523, and a transverse plate 510 is connected to the belt 524. The drive wheel 522 and the driven wheel 523 are the same size, and the center line connecting the drive wheel 522 and the driven wheel 523 is parallel to the first guide rail 530.

[0048] It is understandable that the first motor 521 drives the drive wheel 522 to rotate, the drive wheel 522 drives the belt 524 to rotate, and the driven wheel 523 rotates accordingly. The belt 524 drives the transverse plate 510 to move laterally. The first drive component has a simple structure and fewer parts, which makes it easier to manufacture and assemble, and reduces manufacturing costs.

[0049] In some preferred embodiments, the vertical moving mechanism 400 includes a second motor 410, a lead screw 420, a lead screw nut 430, and a nut seat 440. A second mounting plate 450 is provided on the transverse plate 510. The second motor 410 is mounted on the second mounting plate 450. The lead screw 420 is connected to the output shaft of the second motor 410 and is vertically arranged. The lead screw nut 430 is threadedly connected to the lead screw 420 and is fixedly connected to the nut seat 440. The print head 300 is connected to the nut seat 440.

[0050] Understandably, the second motor 410 drives the lead screw 420 to rotate. Since the lead screw nut 430 is restricted from rotating, the lead screw nut 430 moves linearly along the length of the lead screw 420. The lead screw nut 430 drives the nut seat 440 and the print head 300 to move in the vertical direction, thereby improving the positional accuracy of the print head 300.

[0051] Furthermore, a second guide rail 460 is provided on the transverse plate 510, and a second slider 470 is provided on the nut seat 440. The second guide rail 460 is vertically arranged, and the second slider 470 is slidably connected to the second guide rail 460. When the nut seat 440 drives the second slider 470 to move, the second slider 470 can slide along the length direction of the second guide rail 460, thereby ensuring the stability of the print head 300 when moving vertically and further improving the printing position accuracy.

[0052] Furthermore, a second photoelectric sensor 480 is provided on one side of the nut seat 440, and a second slotted photoelectric sensor 490 is provided on the second mounting plate 450. The second slotted photoelectric sensor 490 is used to sense the entry or exit of the second photoelectric sensor 480.

[0053] Understandably, when the vertical moving mechanism 400 drives the print head 300 to rise, the nut seat 440 drives the second photoelectric sensor 480 to rise until it enters the second slotted photoelectric sensor 490. The second slotted photoelectric sensor 490 triggers a signal, and the second motor 410 in the vertical moving mechanism 400 stops running. This prevents the nut seat 440 and the print head 300 from exceeding their travel range and colliding with the frame 200 or the lateral moving assembly, thereby protecting the hardware from damage.

[0054] Reference Figure 1 , Figure 4 and Figure 5 In some preferred embodiments, a humidification box 600 is provided on the printing platform 100, and the print head 300 includes a housing 310 and an inkjet head 320 disposed on the housing 310. The inkjet head 320 protrudes from the bottom of the housing 310. The humidification box 600 is used to humidify the inkjet head 320. A limit sensing component 330 is provided on the housing 310. The limit sensing component 330 is used to sense the position of the inkjet head 320 entering the humidification box 600.

[0055] Understandably, when the printer completes a printing task, the horizontal moving mechanism 500 drives the print head 300 to move directly above the humidifier cartridge 600, aligning the inkjet head 320 with the humidifier cartridge 600. Then, the vertical moving mechanism 400 drives the print head 300 to descend, allowing the inkjet head 320, which protrudes from the bottom of the housing 310, to enter the humidifier cartridge 600. Simultaneously, the limit sensing component 330 senses the preset depth of the inkjet head 320 entering the humidifier cartridge 600. When the limit sensing component 330 is triggered, the vertical moving mechanism 400 stops moving. This seals and humidifies the inkjet head 320, preventing ink evaporation and clogging, and also preventing external dust from contaminating the inkjet head 320, thereby extending the lifespan of the inkjet head 320.

[0056] Furthermore, the limit sensing assembly 330 includes a third slotted photoelectric sensor 331, a pressure limiting post 332, a spring 333, a fixing plate 334, and two fixing posts 335. The two fixing posts 335 are vertically connected to the bottom wall of the housing 310. The two sides of the third slotted photoelectric sensor 331 are respectively fixed to the top of the two fixing posts 335, and the two sides of the fixing plate 334 are respectively fixed to the two fixing posts 335. A boss is provided in the middle of the pressure limiting post 332. 336, Spring 333 is sleeved on the upper part of pressure limiting post 332. A guide hole is opened in the middle of the fixing plate 334. The guide hole allows the upper part of pressure limiting post 332 to pass through, so that the top end of spring 333 abuts against the bottom of fixing plate 334 and the bottom end of spring 333 abuts against boss 336. The lower part of pressure limiting post 332 passes through the bottom of print head 300. The third slotted photoelectric sensor 331 is used to sense the upper part of pressure limiting post 332 entering or leaving.

[0057] When the printhead 300 is in working condition, the pressure limiting post 332 is separated from the printing platform 100, the spring 333 is in a pre-compressed state, and the elastic force of the spring 333 pushes the limiting post downward. The bottom of the boss 336 abuts against the bottom wall of the housing 310. At this time, the lower part of the pressure limiting post 332 protrudes from the bottom of the printhead 300 housing 310, and the upper part of the pressure limiting post 332 is located directly below the groove of the third slot-shaped photoelectric sensor 331.

[0058] When the printhead 300 descends, the bottom end of the pressure limiting post 332 first contacts the printing platform 100. As the printhead 300 continues to descend, the pressure limiting post 332 is blocked from moving by the printing platform 100, while the housing 310 and the inkjet head 320 continue to descend. At this time, the bottom end of the pressure limiting post 332 is subjected to an upward reaction force from the printing platform 100. The reaction force is greater than the elastic force of the spring 333, and the spring 333 is compressed. The pressure limiting post 332 moves relative to the housing 310, and the upper part of the pressure limiting post 332 slides in the guide block until it enters the groove of the third groove-shaped photoelectric sensor 331. The upper part of the pressure limiting post 332 blocks the light path of the third groove-shaped photoelectric sensor 331, and the third groove-shaped photoelectric sensor 331 is triggered. The vertical moving mechanism 400 stops moving, thereby enabling precise control of the preset depth of the inkjet head 320 entering the humidification box 600.

[0059] Reference Figure 6 In some preferred embodiments, a laser positioning assembly 700 is provided on the frame 200. The laser positioning assembly 700 includes a bracket 710, a U-shaped fixing frame 720 disposed on the bracket 710, a clamping sleeve 730 disposed in the U-shaped fixing frame 720, and a laser emitter 740 disposed in the clamping sleeve 730. The two ends of the bracket 710 are respectively connected to two vertical plates 210. The emitting end of the laser emitter 740 faces the printing platform 100 and is used to emit a laser beam.

[0060] Understandably, the laser beam emitted by the laser emitter 740 illuminates the paper surface on the printing platform 100, forming a laser mark of light or crosshairs on the paper surface. This laser mark can accurately indicate the projection position of the print head 300 on the printing platform 100. The operator moves the paper according to the laser mark so that the target position to be stamped on the paper coincides with the laser mark, thereby achieving precise positioning of the paper stamping position.

[0061] Furthermore, the two ends of the U-shaped fixing bracket 720 are folded outward to form connecting ears 721. The connecting ears 721 are fixed to the bracket 710 by the first bolt (not shown in the figure). The connecting ears 721 are provided with waist-shaped holes 722. The length direction of the waist-shaped holes 722 extends laterally. The bracket 710 is provided with a plurality of first threaded holes 711. The plurality of first threaded holes 711 are arranged laterally at a certain interval. The first bolt passes through the waist-shaped holes 722 and screws into the first threaded holes 711.

[0062] Understandably, during installation, the shank of the first bolt passes through the oblong hole 722 on the connecting lug 721 and is then screwed into the corresponding first threaded hole 711 on the bracket 710. The head of the first bolt presses the connecting lug 721 against the surface of the bracket 710, thereby fixing the U-shaped fixing bracket 720 onto the bracket 710.

[0063] When the lateral position of the laser emitter 740 needs to be adjusted, first loosen the first bolt. The first bolt does not need to be completely removed so that the connecting ear 721 is not subjected to the clamping force of the head of the first bolt. Then, push the U-shaped fixing bracket 720. The screw of the first bolt can restrict the U-shaped fixing bracket 720 to move only along the length direction of the waist-shaped hole 722. When the U-shaped fixing bracket 720 moves the laser emitter 740 to the desired position, tighten the first bolt so that the head of the first bolt presses the connecting ear 721 against the surface of the bracket 710. This makes it easy to adjust the lateral position of the laser emitter 740 and thus adapt to the printing of archival stamps at different positions on the paper.

[0064] Furthermore, an angle adjustment assembly is provided between the clamping sleeve 730 and the U-shaped fixing bracket 720. The angle adjustment assembly includes an angle adjustment bracket 750, two second bolts (not shown in the figure), and two third bolts (not shown in the figure). The angle adjustment bracket 750 has a second threaded hole 751 and a third threaded hole 752 on both sides. The U-shaped fixing bracket 720 has a round through hole 723 and an arc-shaped elongated hole 724 on both sides. The arc-shaped elongated hole 724 is concentric with the round through hole 723. The second bolts pass through the round through hole 723 and screw into the second threaded hole 751, and the third bolts pass through the arc-shaped elongated hole 724 and screw into the third threaded hole 752.

[0065] Understandably, during installation, the screw of the second bolt is passed through the through hole 723 on the U-shaped fixing bracket 720, and then screwed into the second threaded hole 751 of the angle adjusting bracket 750. Next, the position of the angle adjusting bracket 750 is adjusted so that the third threaded hole 752 corresponds to the arc-shaped elongated hole 724. Then, the screw of the third bolt is passed through the arc-shaped elongated hole 724, and then screwed into the third threaded hole 752 of the angle adjusting bracket 750. Finally, the second and third bolts are tightened to fix the angle adjusting bracket 750 on the U-shaped fixing bracket 720.

[0066] When it is necessary to adjust the irradiation angle of the laser emitter 740, loosen the second and third bolts respectively, and then move the angle adjustment bracket 750. At this time, the arc-shaped elongated hole 724 can restrict the screw of the third bolt to move only along its arc trajectory, so that the angle adjustment bracket 750 swings around the axis of the second bolt as the rotation center. When the angle adjustment bracket 750 drives the laser emitter 740 to swing to the required angle, tighten the second and third bolts again to fix the angle adjustment bracket 750 on the U-shaped fixing bracket 720, thereby facilitating the adjustment of the emission angle of the laser emitter 740.

[0067] The above is a detailed description of the preferred embodiments of the present utility model. However, the present utility model is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A highly stable archiving stamp printer, characterized in that, include: A printing platform is used to hold paper. The frame includes two vertical plates and a crossbeam connecting the two vertical plates, the two vertical plates being positioned on top of the printing platform; The print head is used to print the archival stamp; A vertical moving mechanism is used to drive the print head to move vertically. A lateral moving mechanism, used to drive the print head to move laterally, is disposed on the crossbeam and includes a lateral moving plate and a first driving component for driving the lateral moving plate to move laterally. Two parallel first guide rails are disposed on the crossbeam, and two first sliders are disposed on the lateral moving plate. The first sliders are slidably connected to the first guide rails. A vertical moving mechanism is disposed on the lateral moving plate. A first photoelectric sensor is disposed on the side of the lateral moving plate near the crossbeam, and at least two first slotted photoelectric sensors are disposed on one side of the crossbeam. The first slotted photoelectric sensors are used to sense the entry or exit of the first photoelectric sensor.

2. The high-stability archiving stamp printer according to claim 1, characterized in that, The first drive assembly includes a first motor, a drive wheel, a driven wheel, and a belt. A first mounting plate is provided on one of the vertical plates, the first motor is mounted on the first mounting plate, the drive wheel is disposed on the output shaft of the first motor, the driven wheel is rotatably connected to the other vertical plate, the belt is wound around the drive wheel and the driven wheel, and the transverse plate is connected to the belt. The drive wheel and the driven wheel are the same size, and the center line connecting the drive wheel and the driven wheel is parallel to the first guide rail.

3. The highly stable archiving stamp printer according to claim 1, characterized in that, The vertical moving mechanism includes a second motor, a lead screw, a lead screw nut, and a nut seat. A second mounting plate is provided on the horizontal moving plate. The second motor is mounted on the second mounting plate. The lead screw is connected to the output shaft of the second motor. The lead screw is vertically arranged. The lead screw nut is threadedly connected to the lead screw. The lead screw nut is fixedly connected to the nut seat. The print head is connected to the nut seat.

4. A highly stable archiving stamp printer according to claim 3, characterized in that, The transverse plate is provided with a second guide rail, and the nut seat is provided with a second slider. The second guide rail is vertically arranged, and the second slider is slidably connected to the second guide rail.

5. A highly stable archiving stamp printer according to claim 3, characterized in that, A second photoelectric sensor is also provided on one side of the nut seat, and a second slotted photoelectric sensor is provided on the second mounting plate. The second slotted photoelectric sensor is used to sense the entry or exit of the second photoelectric sensor.

6. A highly stable archiving stamp printer according to claim 1, characterized in that, The printing platform is provided with a humidification box. The printhead includes a housing and an inkjet head disposed on the housing. The inkjet head protrudes from the bottom of the housing. The humidification box is used to humidify the inkjet head. A limit sensing component is provided on the housing. The limit sensing component is used to sense the position of the inkjet head entering the humidification box.

7. A highly stable archiving stamp printer according to claim 6, characterized in that, The limiting sensing assembly includes a third groove-shaped photoelectric sensor, a pressure limiting post, a spring, a fixing plate, and two fixing posts. The two fixing posts are vertically connected to the bottom wall of the housing. The two sides of the third groove-shaped photoelectric sensor are respectively fixed to the top of the two fixing posts. The two sides of the fixing plate are respectively fixed to the two fixing posts. A boss is provided in the middle of the pressure limiting post. The spring is sleeved on the upper part of the pressure limiting post. A guide hole is opened in the middle of the fixing plate, through which the upper part of the pressure limiting post passes. The lower part of the pressure limiting post penetrates the bottom of the print head. The third groove-shaped photoelectric sensor is used to sense the upper part of the pressure limiting post entering or leaving.

8. A highly stable archiving stamp printer according to claim 1, characterized in that, The frame is equipped with a laser positioning assembly, which includes a bracket, a U-shaped fixing frame mounted on the bracket, a clamping sleeve mounted inside the U-shaped fixing frame, and a laser emitter mounted inside the clamping sleeve. The two ends of the bracket are respectively connected to the two vertical plates, and the emitting end of the laser emitter faces the printing platform. The laser emitter is used to emit a laser beam.

9. A highly stable archiving stamp printer according to claim 8, characterized in that, The two ends of the U-shaped fixing frame are folded outward to form connecting ears. The connecting ears are fixed to the bracket by the first bolt. The connecting ears are provided with waist-shaped holes. The length direction of the waist-shaped holes extends laterally. The bracket is provided with a plurality of first threaded holes. The first bolt passes through the waist-shaped holes and screws into the first threaded holes.

10. A highly stable archiving stamp printer according to claim 8, characterized in that, An angle adjustment assembly is provided between the clamping sleeve and the U-shaped fixing frame. The angle adjustment assembly includes an angle adjustment bracket, two second bolts, and two third bolts. The angle adjustment bracket has a second threaded hole and a third threaded hole on both sides. The U-shaped fixing frame has a through hole and an arc-shaped elongated hole on both sides. The arc-shaped elongated hole is concentric with the through hole. The second bolt passes through the through hole and screws into the second threaded hole. The third bolt passes through the arc-shaped elongated hole and screws into the third threaded hole.

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