A printer with high adaptability

Abstract

This invention provides a highly adaptable printer, comprising a frame, a paper width adjustment device and a print head assembly mounted on the frame. The paper width adjustment device includes an adjustment base and an adjustment component, the adjustment component being mounted on and slidably connected to the adjustment base to accommodate paper rolls of different widths. The print head assembly includes a print head support and a printing component mounted on the print head support. A print head fixing rod is movably disposed between the two side walls of the print head support. The front end of the printing component is movably connected to the print head support, and its rear end is movably connected to the print head fixing rod. This printer, by using a rotatable rotating rod in conjunction with a sliding base, not only achieves paper width adjustment but also enables lateral paper roll loading and unloading. Furthermore, by movably mounting the print head assembly, it can adapt to paper consumables of different thicknesses, greatly improving the printer's adaptability to different types of paper.

Description

Technical Field

[0001] This invention relates to the technical field of industrial printers, and in particular to a highly adaptable printer. Background Technology

[0002] A printer is a computer output device used to print computer-processed results onto relevant media. Three key metrics for evaluating printer quality are print resolution, print speed, and noise level. There are many types of printers. Based on whether the printing element strikes the paper, they are divided into impact printers and non-impact printers. Based on the structure of the printed characters, they are divided into full-character printers and dot-matrix printers. Based on how a line of text is formed on the paper, they are divided into serial printers and line printers. Based on the technology used, they are divided into column printers, ball printers, inkjet printers, thermal printers, laser printers, electrostatic printers, magnetic printers, and LED printers, among others. With the widespread application of thermal printers, they are used not only in bank ATMs, supermarket checkouts, and e-commerce shipping counters, but also, especially, in the rapidly growing e-commerce and express delivery industries, where printing demands higher stability, durability, and printing accuracy and speed.

[0003] Currently, while small portable printers can adjust printing based on paper width, their paper width adjustment mechanisms only support vertical paper roll loading and unloading. When the printer has a paper roll lever, the paper roll can only be moved along the axial direction of the lever, making vertical paper roll loading and unloading unsuitable for this purpose. Furthermore, some printer cartridges are not compatible with a wide range of consumable thicknesses. Printing is required for consumable thicknesses from 0.06 to 1.5 mm, especially for RFID consumables with thicknesses from 1 to 1.5 mm. Current technology requires different models of printers to achieve this, necessitating the purchase of multiple units. Moreover, the hardness of consumables varies greatly, and the existing printers' springs are difficult to adjust or can only accommodate a small portion of consumables, resulting in poor print quality. Therefore, current printers have poor adaptability.

[0004] In view of this, the inventors specifically designed a highly adaptable printer, which led to this invention. Summary of the Invention

[0005] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention proposes a highly adaptable printer. By setting a rotatable rotating rod in conjunction with a sliding block, it can not only adjust the paper width but also achieve lateral paper roll loading and unloading. Furthermore, by movably mounting the printhead assembly, it can adapt to paper consumables of different thicknesses from 0.06 to 1.5 mm, and allows for quick and convenient replacement of the printhead assembly. The adjustable structure allows for adjustment of different pressures on the printhead assembly to accommodate the elasticity requirements of consumables with different paper hardness, greatly improving the printer's adaptability to different paper types and overcoming the shortcomings of poor adaptability in currently used printers.

[0006] The present invention provides a highly adaptable printer, including a frame, and further including a paper width adjustment device and a printhead assembly disposed on the frame:

[0007] The paper width adjustment device includes an adjustment base and an adjustment component. The adjustment component is disposed on the adjustment base and slidably connected to the adjustment base to adapt to paper rolls of different paper widths. The adjustment component includes a slide seat disposed on the adjustment base and slidably connected to the adjustment base, and a rotating rod disposed on the slide seat and rotatably connected to the slide seat.

[0008] The mechanism includes a mechanism support, a printing component and a paper guide component mounted on the mechanism support, with a paper path formed between the printing component and the paper guide component. A printhead fixing rod is movably mounted between the two side walls of the mechanism support. The front end of the printing component is movably connected to the mechanism support and its rear end is movably connected to the printhead fixing rod. A paper thickness adjustment mechanism is provided on any side wall of the mechanism support for adjusting the position of the printhead fixing rod along the height direction of the mechanism support.

[0009] The printer of this invention, by setting a rotatable rotating rod in conjunction with a slide, can not only adjust the paper width but also enable lateral paper roll loading and unloading. Furthermore, by movably mounting the printhead assembly, it can accommodate paper consumables of different thicknesses from 0.06 to 1.5 mm and allows for quick and convenient replacement of the printhead assembly. The adjustable structure can regulate different pressures on the printhead assembly to adapt to the elastic requirements of consumables with different paper hardness, greatly improving the printer's adaptability to different types of paper.

[0010] In some embodiments of the present invention, an outer casing disposed on a frame is further included. The outer casing includes a paper output cover plate, and an antenna device rotatably connected thereto is disposed on the paper output cover plate. The antenna device includes a base disposed on the paper output cover plate, an antenna module disposed on the base and rotatably connected at one end to the base, and a locking mechanism disposed at the other end of the antenna module and detachably connected to the paper output cover plate.

[0011] In some embodiments of the present invention, the antenna module has two states, one being a usage state and the other a paper-changing state. The antenna module is provided with a protrusion, and the base is provided with a first limiting groove and a second limiting groove that cooperate with the protrusion. The protrusion cooperates with the first limiting groove or the second limiting groove respectively to correspond to the usage state or the paper-changing state of the antenna module.

[0012] In some embodiments of the present invention, the antenna module has a mounting cavity for mounting a locking mechanism inside the end away from the base, and the mounting cavity has a U-shaped groove inside; the locking mechanism includes a locking buckle that can slide in the mounting cavity and an elastic element disposed between the locking buckle and the groove.

[0013] In some embodiments of the present invention, one end of the antenna module is fixed to the base by a first bolt, the base is provided with a snap-fit ​​part and a first mounting part, the paper output cover is provided with a locking step that cooperates with the snap-fit ​​part, the paper output cover is provided with a second mounting part for fixing the first mounting part, and the first mounting part is locked to the first mounting part by a second bolt.

[0014] In some embodiments of the present invention, a locking mechanism is provided at the other end of the antenna assembly to prevent the antenna module from rotating with the base.

[0015] In some embodiments of the present invention, a first rotating shaft is provided on the base, and one end of the antenna module is provided in a first mounting hole that cooperates with the first rotating shaft.

[0016] In some embodiments of the present invention, the first mounting hole is provided along its central axis in an elastic groove communicating with the outer side wall.

[0017] In some embodiments of the present invention, the antenna device is mounted on the paper output cover, the base is disposed on the paper output cover, and the locking mechanism can be locked onto the paper output cover.

[0018] The paper output cover is provided with locking holes for locking by the locking mechanism.

[0019] In some embodiments of the present invention, the second mounting portion is cylindrical, and the first mounting portion is located on one side of the second mounting portion and is provided with an annular step that mates with the second mounting portion.

[0020] In some embodiments of the present invention, a first rotating part is provided on the slide, one end of the rotating rod is provided in a second through hole rotatably connected to the first rotating part, and the rotating rod is installed on the slide by a first locking member.

[0021] In some embodiments of the present invention, the slide is provided with an elastic step to prevent the rotating rod from rotating on its own, and two anti-rotation grooves that cooperate with the elastic step are provided on the side of the rotating rod facing the elastic step.

[0022] In some embodiments of the present invention, a first through hole is formed on the slide to form an L-shaped elastic arm, and the elastic step is disposed on the elastic wall.

[0023] In some embodiments of the present invention, an adjusting member is further included, which is disposed on the adjusting seat and slidably connected to the adjusting seat. The adjusting member is disposed opposite to the adjusting assembly, and the paper roll is located between the adjusting member and the adjusting assembly. The adjusting member and the adjusting assembly are connected by a linkage mechanism to bring the adjusting member and the adjusting assembly closer to each other or further apart. The linkage mechanism includes a gear disposed on the back of the adjusting seat and rotatably connected to the adjusting seat, a first rack disposed on the adjusting assembly and meshing with the gear, and a second rack disposed on the adjusting member and meshing with the gear.

[0024] In some embodiments of the present invention, the adjusting seat is provided with an adjusting hole, the slide is provided with a sliding step that is embedded in the adjusting hole, the sliding step is provided with a mounting post, the first rack is provided with a first mounting groove for the mounting post to be embedded, and the first rack is provided on the slide by a third locking member.

[0025] In some embodiments of the present invention, the adjusting seat is further provided with a scale, the slide is provided with a raised first actuating part, and the rotating rod is located on one side of the paper roll and is flush with the side wall of the first actuating part of the slide.

[0026] In some embodiments of the present invention, the printhead fixing rod includes a fixed shaft and rotating seats symmetrically disposed at both ends of the fixed shaft. The fixed shaft is disposed on one side of the line connecting the centers of the two rotating seats to form an eccentric structure. The two rotating seats are rotatably connected between the two side walls of the mechanism support. The end of the rotating seat extends out of the outside of the mechanism support and is fixed with a lever plate. The side of the lever plate away from the rotating seat is provided with a limiting tooth. The outer side wall of the mechanism support is provided with a plurality of limiting slots that cooperate with the limiting tooth for limiting.

[0027] In some embodiments of the present invention, movable mounting plates are symmetrically provided at the rear end of the printing component and on both sides of its width direction. The two movable mounting plates are provided with a second mounting groove. The fixed shaft passes through the two second mounting grooves along both sides of the printing component and is fixed to the rotating seats on both sides. The second mounting groove forms an opening in the direction away from the front end of the printing component so that the second mounting groove is U-shaped. Limiting pieces are symmetrically provided at the front end of the printing component and on both sides of its width direction. An L-shaped quick-release slot is symmetrically provided on the inner sidewalls of both sides of the mechanism support and at the position opposite to the front end of the printing component. The quick-release slot includes a horizontal locking channel and a fixed channel along the vertical lower edge of the end of the horizontal locking channel. The front side of the horizontal locking channel extends to the front side of the mechanism support. The width of the fixed channel is adapted to the limiting piece.

[0028] In some embodiments of the present invention, the printing assembly includes a printhead fixing plate for forming the upper side of the paper feed path, the printhead fixing plate being integrally stamped from a stainless steel plate.

[0029] In some embodiments of the present invention, a terminal wiring terminal is provided on the upper front side of the printing component.

[0030] In some embodiments of the present invention, a mechanism cover is formed at the upper end of the mechanism support and above the printing assembly. A rod is provided at the lower end of the mechanism cover. A clamping seat is slidably fitted at the bottom of the rod. An adjusting sleeve is slidably provided on the outer periphery of the rod and above the clamping seat. A clamping spring is movably fitted between the adjusting sleeve and the clamping seat and on the outer periphery of the rod. The mechanism cover is provided with an adjusting structure for changing the distance between the adjusting sleeve and the clamping seat. The adjusting structure includes an adjusting seat and a lever provided on one side of the adjusting seat. The bottom of the adjusting seat forms several stepped surfaces that can respectively fit with the upper end face of the adjusting sleeve. A clearance groove for the support rod is provided through the middle of the adjusting seat along the distribution direction of the several stepped surfaces. A positioning protrusion is provided on the upper end face of the adjusting sleeve. A positioning groove that cooperates with the positioning protrusion is provided on the several stepped surfaces. Attached Figure Description

[0031] The accompanying drawings, which are provided to further illustrate the invention and constitute a part of this invention, are illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention.

[0032] in:

[0033] Figure 1 This is a schematic diagram of the internal structure of the printer of this invention;

[0034] Figure 2 This is a schematic diagram of the printer structure of the present invention;

[0035] Figure 3This is a schematic diagram of the paper width adjustment device of the present invention. Figure 1 ;

[0036] Figure 4 This is a schematic diagram of the paper width adjustment device of the present invention. Figure 2 ;

[0037] Figure 5 This is an exploded view of the paper width adjustment device of the present invention;

[0038] Figure 6 This is a schematic diagram of the slide block of the present invention;

[0039] Figure 7 This is a schematic diagram of the rotating rod of the present invention;

[0040] Figure 8 This is a schematic diagram of the paper width adjustment device for picking up and putting down paper rolls according to the present invention;

[0041] Figure 9 This is a schematic diagram of the overall structure of the movement device of the present invention;

[0042] Figure 10 This is a partial exploded view of the printhead assembly in this invention;

[0043] Figure 11 This is a partial cross-sectional view of the printhead assembly in this invention;

[0044] Figure 12 This is a partial exploded view of the printhead assembly mounting structure in this invention;

[0045] Figure 13 This is a three-dimensional structural diagram highlighting the clamping seat mounting structure in this invention;

[0046] Figure 14 This is a cross-sectional view of the clamping seat mounting structure in this invention;

[0047] Figure 15 This is a three-dimensional structural diagram highlighting the clamping seat, support rod, and adjusting sleeve in this invention;

[0048] Figure 16 This is a three-dimensional structural diagram highlighting the force balance mechanism of the carbon ribbon in this invention.

[0049] Figure 17 This is a schematic diagram of the antenna device of the present invention;

[0050] Figure 18 This is a schematic diagram of the structure of the base of the present invention;

[0051] Figure 19 This is a schematic diagram of the antenna module of the present invention;

[0052] Figure 20 This is a schematic diagram of the installation of the locking mechanism of the present invention;

[0053] Figure 21 This is a schematic diagram of the installation of the base of the present invention;

[0054] Figure 22 This is a schematic diagram of the antenna device of the present invention in the paper-changing state.

[0055] Label Explanation:

[0056] 10. Frame; 20. Paper width adjustment device; 21. First adjustment seat; 211. Adjustment hole; 212. Scale; 22. Adjustment assembly; 221. Slide; 2211. First rotating part; 2212. Elastic step; 2213. First through hole; 2214. Elastic arm; 2215. Mounting post; 2217. First actuating part; 2216. Sliding step; 222. Rotating rod; 2221. Second through hole; 2222. Anti-rotation groove; 223. First locking element; 23. Adjusting element; 24. Linkage mechanism; 241. Gear; 242. First rack; 2421. First mounting groove; 24 3. Second rack; 25. Second locking element; 26. Third locking element; 30. Machine mechanism assembly; 31. Machine mechanism support; 311. Paper path; 312. Quick-release slot; 3121. Horizontal locking channel; 3122. Fixed channel; 313. Machine mechanism top cover; 314. Window; 315. Balance slot; 316. Waist-shaped slot; 32. Printing assembly; 321. Movable mounting plate; 322. Second mounting slot; 323. Limiting piece; 324. Printhead fixing plate; 325. Terminal block; 33. Printhead fixing rod; 331. Fixing shaft; 332. Rotating seat; 34. Paper thickness adjustment mechanism; 34 1. Paddle; 342. Limiting tooth; 343. Limiting slot; 344. Auxiliary actuating part; 35. Support rod; 351. Pressing seat; 3511. Limiting cavity; 352. Adjusting sleeve; 353. Pressing spring; 354. Positioning protrusion; 36. Adjusting structure; 361. Second adjusting seat; 362. Paddle block; 363. Stepped surface; 364. Clearance groove; 365. Positioning groove; 37. Screw; 371. Washer; 38. Carbon ribbon force balancing mechanism; 381. Carbon ribbon recovery balance bar; 3811. Flat key; 3812. Bayonet groove; 382. Spring fixing seat; 3821. Bayonet part; 383. Balance spring; 40. Outer shell; 41. Paper output cover; 411. Locking step; 412. Second mounting part; 413. Locking hole; 50. Antenna device; 51. Base; 511. First rotating shaft; 512. First limiting groove; 513. Second limiting groove; 514. Buckle part; 515. First mounting part; 5151. Annular step; 52. Antenna module; 521. First mounting hole; 522. Elastic groove; 523. Protrusion; 524. Mounting cavity; 525. Groove; 53. Locking mechanism; 531. Locking buckle; 532. Elastic element; 54. First bolt; 55. Second bolt. Detailed Implementation

[0057] To make the technical problems, solutions, and beneficial effects 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 scope of the invention.

[0058] Please see Figures 1 to 22 This is a highly adaptable printer, a preferred embodiment of the present invention, comprising a frame 10, and a paper width adjustment device 20 and a print assembly 30 disposed on the frame 10. The paper width adjustment device 20 includes an adjustment seat and an adjustment component 22. The adjustment component 22 is disposed on and slidably connected to the adjustment seat to accommodate paper rolls of different widths. The adjustment component 22 includes a slide 221 disposed on and slidably connected to the adjustment seat, and a rotating rod 222 disposed on and rotatably connected to the slide 221. The paper width adjustment device 20, through the rotatable rotating rod 222 and the slide 221, can not only adjust the paper width but also allow for lateral paper roll loading and unloading. The print assembly 30 includes a print support 31 and a printing component 32 disposed on the print support 31. The paper guide assembly and the printing assembly 32 form a paper path 311. A printhead fixing rod 33 is movably arranged between the two side walls of the mechanism support 31. The front end of the printing assembly 32 is movably connected to the mechanism support 31 and its rear end is movably connected to the printhead fixing rod 33. A paper thickness adjustment mechanism 34 is provided on any side wall of the mechanism support 31 to adjust the position of the printhead fixing rod 33 along the height direction of the mechanism support 31. By movably installing the printhead assembly, the mechanism device 30 can adapt to paper consumables of different thicknesses from 0.06 to 1.5 mm and can realize quick and convenient replacement of the printhead assembly. The adjustment structure 36 can adjust the different pressures on the printhead assembly to adapt to the elastic requirements of consumables with different paper hardness, which greatly improves the printer's adaptability to different papers.

[0059] Please refer to details. Figure 6 A first rotating part 2211 is provided on the slide 221. One end of a rotating rod 222 is provided in a second through hole 2221 rotatably connected to the first rotating part 2211. The rotating rod 222 is installed on the slide 221 via a first locking member 223. After the second through hole 2221 is fitted onto the first rotating part 2211, it is threadedly connected to the first rotating part 2211 via the first locking member 223, thus restricting the rotating rod 222 onto the slide 221. Specifically, the second through hole 2221 is rotatably connected to the first rotating part 2211, and the first locking member 223 is used to fit and hold the second through hole 2221 onto the first rotating part 2211. The first locking member 223 can be a bolt.

[0060] The slide block 221 is provided with an elastic step 2212 to prevent the rotating rod 222 from rotating on its own. Two anti-rotation grooves 2222 are provided on the side of the rotating rod 222 facing the elastic step 2212, which cooperate with the elastic step 2212. One anti-rotation groove 2222 corresponds to the paper width adjustment state, and the other anti-collision groove corresponds to the paper roll loading / unloading state. A first through hole 2213 is provided on the slide block 221 to form an L-shaped elastic arm 2214. The elastic step 2212 is provided on the elastic wall to make the elastic step 2212 elastic. Under the action of external force, the elastic step 2212 can disengage from the anti-collision groove. Through the cooperation of the elastic step 2212 and the anti-collision groove, the rotating rod 222 can be prevented from rotating on its own. Because the elastic step 2212 is elastic, even if the elastic step 2212 is embedded in the anti-collision groove, it can still disengage from the anti-collision groove under the action of external force.

[0061] Please refer to the details. Figure 3 , 4 5. The paper width adjustment structure 36 further includes an adjustment member 23 fixedly disposed on the first adjustment seat 21, the adjustment member 23 being disposed opposite to the adjustment component 22, and the paper roll being located between the adjustment member 23 and the adjustment component 22; or the paper width adjustment structure 36 further includes an adjustment member 23 disposed on the first adjustment seat 21 and slidably connected to the first adjustment seat 21, the adjustment member 23 being disposed opposite to the adjustment component 22, and the paper roll being located between the adjustment member 23 and the adjustment component 22; when the adjustment member 23 is slidably connected to the first adjustment seat 21, the adjustment member 23 and the adjustment component 22 are connected by a linkage mechanism 24 to make the adjustment member 23 and the adjustment component 22 move closer to each other or further away from each other.

[0062] Please refer to details. Figure 4 , 5The linkage mechanism 24 includes a gear 241 disposed on the back of the first adjusting seat 21 and rotatably connected to the first adjusting seat 21, a first rack 242 disposed on the adjusting component 22 and meshing with the gear 241, and a second rack 243 disposed on the adjusting member 23 and meshing with the gear 241. When the adjusting component 22 moves, it drives the first rack 242 to move. Since the first rack 242 meshes with the gear 241, it drives the gear 241 to rotate. Under the action of the rotation of the gear 241, it drives the second rack 243 to move. Therefore, the adjusting member 23 and the adjusting component 22 can move closer or further apart to adapt to printing of different paper widths. Specifically, a second rotating part is provided on the back of the first adjusting seat 21, which is rotatably connected to the gear 241. The second rotating part is provided with an internal threaded hole. The gear 241 is mounted on the second rotating part through the second locking member 25, and a limiting step is provided on the gear 241 so that the first rack 242 and the second rack 243 can move stably between the first adjusting seat 21 and the limiting step. The gear 241 is sleeved on the second rotating part, and then the second locking member 25 is threadedly connected to the second rotating part so that the gear 241 can rotate on the second rotating part. The rotational connection method of the gear 241 is the same as the rotational connection method of the rotating rod 222. The second locking member 25 can also be a bolt.

[0063] The first adjusting seat 21 is provided with an adjusting hole 211, and the slide 221 is provided with a sliding step 2216 that is embedded in the adjusting hole 211. The sliding step 2216 is provided with a mounting post 2215. The first rack 242 is provided with a first mounting groove 2421 for the mounting post 2215 to be embedded. The first rack 242 is mounted on the slide 221 by a third locking member 26, wherein the third locking member 26 can also be a bolt. The mounting post 2215 is provided with an internal threaded hole. After the mounting post 2215 is embedded in the first mounting groove 2421, the third locking member 26 is threadedly connected to the mounting post 2215 so that the first rack 242 is mounted on the slide 221. The connection method between the adjusting member 23 and the second rack 243 is the same as the connection method between the slide 221 and the first rack 242, and will not be described in detail.

[0064] The first adjustment seat 21 is also provided with a scale 212 so that the adjustment component 22 and the adjustment part 23 can be directly adjusted into place according to the width of the paper roll. The slide 221 is provided with a raised first actuating part 2217 to facilitate the movement of the slide 221. The rotating rod 222 is located on one side of the paper roll and is flush with the side wall of the first actuating part 2217 of the slide 221. Therefore, when the slide 221 is adjusted into place, the entire adjustment component 22 is adjusted into place.

[0065] The paper width adjustment device 20 of the present invention is adjusted as follows: First, according to the width of the paper roll, adjust the distance between the adjustment component 22 and the adjustment member 23. Then, rotate the rotating rod 222 upward so that one anti-collision groove is embedded in the elastic step 2212 and kept in place to prevent the rotating rod 222 from falling off by itself. Then, put the paper roll in from the side so that one end of the paper roll abuts against the adjustment member 23. Then, rotate the adjustment rod downward so that the other anti-collision groove is embedded in the elastic step 2212 and kept in place. When it is necessary to replace the paper roll, the operation is reversed.

[0066] Please refer to details. Figure 10 The printhead fixing rod 33 includes a fixed shaft 331 and rotating seats 332 symmetrically arranged at both ends of the fixed shaft 331. The rotating seats 332 are cylindrical seats. The fixed shaft 331 is located on one side of the line connecting the centers of the two rotating seats 332 to form an eccentric shaft structure. The two rotating seats 332 are rotatably connected between the two side walls inside the mechanism support 31. Thus, by rotating the rotating seats 332, the fixed shaft 331 can be rotated relative to the line connecting the centers of the two rotating seats 332, thereby changing the position of the rotating seats 332 in the height direction, raising or lowering the rear end of the printing assembly 32, and thus facilitating the change of the vertical spacing of the paper feeding channel 311.

[0067] Please refer to details. Figure 9 , 10 The end of the rotating seat 332 extends outward from the outer side of the mechanism support 31 and is fixed with a lever 341. A limiting tooth 342 is provided on the side of the lever 341 away from the rotating seat 332. Several limiting slots 343, which cooperate with the limiting teeth 342, are provided around the outer wall of the mechanism support 31 around the rotating seat 332. The lever 341, the limiting teeth 342, and the limiting slots 343 constitute the paper thickness adjustment mechanism 34. In this embodiment, the lever 341 is fan-shaped and fits against the outer wall of the mechanism support 31. A total of three limiting slots 343 are provided, depending on the size of the paper feed channel 311 that needs to be changed. Each of the three limiting slots 343 corresponds to three thickness variations from 0.06 to 1.5 mm. The number and position distribution of the limiting slots 343 can also be adjusted according to other thickness changes. No limitation is made here. By rotating the dial plate 341, the limiting teeth 342 are limited to the limiting slots 343 at different positions, which can realize different height changes of the printing component 32, thereby changing the vertical spacing of the paper feed channel 311. In addition, an auxiliary dialing part 344 is provided on the upper outer wall of the dial plate 341 for easy manual adjustment by the user.

[0068] Please refer to details. Figure 10 , 1112. The printing component 32 has symmetrically arranged movable mounting plates 321 at its rear end and on both sides in its width direction. The two movable mounting plates 321 are perforated by second mounting grooves 322. A fixed shaft 331 passes through the two second mounting grooves 322 along both sides of the printing component 32 and is fixed to the rotating seats 332 on both sides. Specifically, in this embodiment, the second mounting grooves 322 form openings in a direction away from the front end of the printing component 32, so that the second mounting grooves 322 are generally U-shaped. The printing component 32 has symmetrically arranged limiting pieces 323 at its front end and on both sides in its width direction. The inner sidewalls of the mechanism bracket 31 on both sides, at positions opposite to the front end of the printing component 32, are symmetrically provided with L-shaped quick-release clips. The slot 312 includes a horizontal insertion channel 3121 and a fixed channel 3122 along the vertical lower edge of the end of the horizontal insertion channel 3121. The front side of the horizontal insertion channel 3121 extends to the front side of the mechanism bracket 31. The width of the fixed channel 3122 is adapted to the limiting piece 323. Thus, the U-shaped second mounting slot 322 is first aligned with the fixed shaft 331. While pushing the second mounting slot 322 toward the fixed shaft 331, the limiting piece 323 at its front end is inserted along the horizontal insertion channel 3121. Finally, it is engaged at the bottom of the fixed channel 3122, thus facilitating the quick installation and removal of the entire printing assembly 32 and enabling rapid replacement of the print head after damage.

[0069] Please refer to details. Figure 11 The printing assembly 32 includes a printhead fixing plate 324 for forming the upper side of the paper path 311. The printhead fixing plate 324 is formed by stamping a stainless steel plate in one piece, or it can be made of other easily conductive metal plates. Thus, the paper path 311 through which the ribbon passes is made of metal instead of the original plastic, and the static electricity is grounded by the printhead fixing plate 324 made of stainless steel or other metal materials, so that the static electricity can be better discharged and the printhead can be protected from electrostatic discharge.

[0070] Please refer to details. Figure 12 The printing component 32 has a terminal block 325 on the front side of its upper end, which allows for more convenient wiring.

[0071] Please refer to details. Figure 13 , 1415. A mechanism cover 313 is formed at the upper end of the mechanism support 31 and above the printing assembly 32. A support rod 35 is provided at the lower end of the mechanism cover 313. A clamping seat 351 is slidably fitted at the bottom of the support rod 35. An adjusting sleeve 352 is slidably provided on the outer periphery of the support rod 35 and above the clamping seat 351. A clamping spring 353 is movably fitted between the adjusting sleeve 352 and the clamping seat 351 and on the outer periphery of the support rod 35. The mechanism cover 313 is provided with an adjusting structure 36 for changing the distance between the adjusting sleeve 352 and the clamping seat 351. Specifically, the adjusting structure 36... 6 includes a second adjusting seat 361 and a lever 362 disposed on one side of the second adjusting seat 361. The bottom of the second adjusting seat 361 forms a plurality of stepped surfaces 363 that can respectively fit against the upper end surface of the adjusting sleeve 352. The middle of the second adjusting seat 361 and along the distribution direction of the plurality of stepped surfaces 363 are provided with a relief groove 364 for accommodating the support rod 35. The upper end surface of the adjusting sleeve 352 is provided with a positioning protrusion 354. The plurality of stepped surfaces 363 are provided with positioning grooves 365 that cooperate with the positioning protrusion 354. In this embodiment, the upper cover 313 of the movement is provided with a hollow portion for the second The adjusting seat 361 slides and the lever 362 extends and adjusts. A strip-shaped window 314 is formed on the front side of the upper cover 313 of the mechanism to allow the levers 362 on both sides to extend and slide. Two sets of the aforementioned elastic clamping structures are symmetrically distributed on both sides of the upper end of the printing assembly 32. The stepped surface 363 of the second adjusting seat 361 has three layers, which change at equal intervals to achieve three-level adjustment. When it is necessary to adjust the elastic pressure of the clamping seat 351 on the printing assembly 32, simply press down on the adjusting sleeve 352 to compress the clamping spring 353, thus adjusting the second... The lateral movement of the adjusting seat 361 allows for a distance to be left and right. By moving the lever 362 of the second adjusting seat 361, the position of the second adjusting seat 361 can be adjusted left and right, so that different step surfaces 363 are aligned with the upper end face of the adjusting sleeve 352. Finally, the adjusting sleeve 352 is released, so that the positioning protrusion 354 at its upper end is engaged in the positioning groove 365 of the corresponding step surface 363. This allows for the adjustment of the clamping spring force of the clamping seat 351, thereby adjusting the pressure of the clamping seats 351 on both sides according to the different elastic clamping forces required on both sides of the printing component 32.

[0072] In addition, in this embodiment, the upper and lower ends of the support rod 35 are respectively provided with two screws 37 with washers 371. The upper screw 37 is used to fix the support rod 35 and the upper cover 313 of the mechanism, and the lower screw 37 is used to limit the position of the support rod 35 and the pressure seat 351. The inner side of the pressure seat 351 is hollow and forms a limiting cavity 3511 with a diameter larger than that of the support rod 35. The lower screw 37 and the corresponding washer 371 abut against the bottom of the limiting cavity 3511, thereby limiting the position of the support rod 35 and the pressure seat 351. While ensuring the smooth sliding of the pressure seat 351 and the support rod 35, the support rod 35 and the pressure seat 351 are prevented from dislodging.

[0073] Specifically, this embodiment also includes a ribbon force balancing mechanism 38, which includes a ribbon recovery balancing rod 381, a spring fixing seat 382, ​​and a balancing spring 383. The two ends of the ribbon recovery balancing rod 381 form flat keys 3811 that are inserted and engaged with the spring fixing seat 382. An easy-to-install bayonet structure is formed between the end of the ribbon recovery balancing rod 381 and the spring fixing seat 382, ​​namely, an annular bayonet groove 3812 is formed at the end of the ribbon recovery balancing rod 381, and a bayonet portion 3821 that engages with the bayonet groove 3812 is formed inside the spring fixing seat 382. The main body of the spring fixing seat 382 is perpendicularly distributed to the ribbon recovery balancing rod 381, and the spring fixing seat 382 is located away from the ribbon recovery balancing rod 381. One end is recessed inward to form an adaptation groove (not shown in the figure). A balance spring 383 is movably installed in the adaptation groove. The upper front side of the mechanism support 31 has symmetrical balance grooves 315 for the spring fixing seat 382 to be inserted into. The length of the balance groove 315 is greater than the extension length of the spring fixing seat 382. The end of the balance spring 383 movably contacts the side wall of the balance groove 315. The side wall of the mechanism support 31 has a strip-shaped waist groove 316. The waist groove 316 is connected to the balance groove 315 and is used to pass through the carbon ribbon recovery balance rod 381. Thus, through the spring fixing seat 382 and the spring, the carbon ribbon recovery balance rod 381 can move adaptively in the extension direction of the waist groove 316 and in the balance groove 315, thereby adapting to different pressures during carbon ribbon recovery.

[0074] Please refer to details. Figure 2 , 1719. The printer of the present invention also includes a housing 40 disposed on the frame 10. The housing 40 includes a paper output cover 41, on which an antenna device 50 is rotatably connected. The antenna device 50 includes a base 51 disposed on the paper output cover 41, an antenna module 52 disposed on the base 51 and rotatably connected at one end to the base 51, and a locking mechanism 53 disposed at the other end of the antenna module 52 and detachably connected to the paper output cover 41. The antenna module 52, rotatably connected to the base 51, allows for adjustment of its position. During printing, the antenna module 52 is rotated and locked to the paper output cover 41 by the locking mechanism 53 to prevent rotation. When paper needs to be replaced, the locking mechanism 53 can be unlocked, and the antenna module 52 can be rotated to avoid affecting paper replacement. Therefore, the antenna module 52 has two states: a usage state and a non-use state. In the paper-changing state, the antenna module 52 is provided with a protrusion 523, and the base 51 is provided with a first limiting groove 512 and a second limiting groove 513 that cooperate with the protrusion 523. The protrusion 523 cooperates with the first limiting groove 512 or the second limiting groove 513 respectively to correspond to the use state or the paper-changing state of the antenna module 52. When the RFID antenna is needed, the antenna module 52 is rotated so that the protrusion 523 is embedded in the first limiting groove 512, which can effectively prevent the antenna module 52 from rotating on its own. With the locking mechanism 53 locking, the antenna module 52 is securely set and is in the use state. When the RFID antenna is not needed, the locking mechanism 53 is unlocked, the antenna module 52 is rotated, and the protrusion 523 is embedded in the second limiting groove 513. Through the cooperation of the protrusion 523 and the second limiting groove 513, and with the damping effect, the antenna module 52 is held in place.

[0075] One end of the antenna module 52 is fixed to the base 51 by a first bolt 54. A first rotating shaft 511 is provided on the base 51. One end of the antenna module 52 is provided in a first mounting hole 521 that mates with the first rotating shaft 511. The first rotating shaft 511 has a first internal threaded hole along its central axis. The first mounting hole 521 is fitted onto the first rotating shaft 511. The first bolt 54 is locked onto the first rotating shaft 511 to prevent the antenna module 52 from disengaging from the first rotating shaft 511. The first mounting hole 521 is provided in an elastic groove 522 that communicates with the outer wall along its central axis. The inner diameter of the first mounting hole 521 is equal to or less than the outer diameter of the first rotating shaft 511. When the inner diameter of the first mounting hole 521 is less than the outer diameter of the first rotating shaft 511, the elastic groove 522 can play a damping role. Therefore, the antenna module 52 will only rotate under the action of external force.

[0076] The locking mechanism 53 can be locked onto the paper output cover plate 41. The antenna module 52 has a mounting cavity 524 for mounting the locking mechanism 53 at the end away from the base 51. The mounting cavity 524 has a U-shaped groove 525 inside. The mounting cavity 524 and the groove 525 are formed as needed by several support arms located inside the antenna module 52. The paper output cover plate 41 is provided with a locking hole 413 for locking by the locking mechanism 53. The locking mechanism 53 includes a locking buckle 531 that can slide in the mounting cavity 524 and an elastic element 532 disposed between the locking buckle 531 and the groove 525. The elastic element 532 is a spring and always generates elastic potential energy on the locking buckle 531. A locking step is provided below the locking buckle 531. When the antenna module 52 is in use, the locking buckle 531 passes through the locking hole 413 and hooks the inner side of the paper output cover plate 41 through the locking step under the action of the elastic element 532. When it is necessary to unlock, press the locking buckle 531 and move it backward so that the locking step disengages from the inner side of the paper output cover plate, and the locking buckle 531 can move upward through the locking hole 413.

[0077] The base 51 is provided with a snap-fit ​​part 514 and a first mounting part 515. The paper output cover plate 41 is provided with a locking step 411 that cooperates with the snap-fit ​​part 514. The paper output cover plate 41 is provided with a second mounting part 412 for fixing the first mounting part 515. The first mounting part 515 is locked to the first mounting part 515 by a second bolt 55. The second mounting part 412 is provided with a second internal thread hole that cooperates with the second bolt 55. The second bolt 55 passes through the first mounting part 515 and is threadedly connected to the second mounting part 412. After the second bolt 55 is locked in place, the snap-fit ​​part 514 hooks onto the locking step 411. By snapping onto the locking step 411 and locking the base 51 with the second bolt 55, the base 51 is quickly installed on the paper output cover plate 41, improving installation efficiency.

[0078] The second mounting part 412 is cylindrical, and the first mounting part 515 is located on one side of the second mounting part 412 and is provided on the annular step 5151 that mates with the second mounting part 412, so as to quickly position the base 51 on the paper output cover plate 41 and facilitate the tightening of the second bolt 55.

[0079] In summary, the present invention has the following beneficial effects:

[0080] First, the paper width adjustment device, through a rotatable rotating rod in conjunction with a sliding block, can not only adjust the paper width but also enable lateral loading and unloading of paper rolls; it also features a linkage mechanism to simultaneously adjust the positions of the adjustment components and the adjustment parts, thereby achieving paper width adjustment.

[0081] Secondly, by setting up an antenna module that is rotatably connected to the base, the position of the antenna module can be adjusted. When the RFID function is needed, the antenna module is rotated and locked by the locking component to prevent the antenna module from rotating. When the printing paper needs to be replaced, the locking mechanism can be unlocked and the antenna module rotated to avoid interference. At the same time, the base can be quickly installed by using a buckle part in conjunction with the locking step.

[0082] Third, by movably installing the printhead assembly, it can accommodate paper consumables of different thicknesses from 0.06 to 1.5 mm, and can quickly and easily replace the printhead assembly.

[0083] Fourth, by adjusting the structure, different pressures on the printhead assembly can be adjusted to adapt to the elasticity requirements of consumables with different paper hardness.

[0084] Fifth, the stainless steel printhead mounting plate can better discharge static electricity, thus providing better protection for the printhead.

[0085] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, are all within the protection scope of the present invention.

Claims

1. A highly adaptable printer, comprising a frame, characterized in that, It also includes a paper width adjustment device and a machine core assembly mounted on the frame: The paper width adjustment device includes an adjustment base and an adjustment component. The adjustment component is disposed on the adjustment base and slidably connected to the adjustment base to adapt to paper rolls of different paper widths. The adjustment component includes a slide seat disposed on the adjustment base and slidably connected to the adjustment base, and a rotating rod disposed on the slide seat and rotatably connected to the slide seat. The mechanism includes a mechanism support and a printing component mounted on the mechanism support. A printhead fixing rod is movably mounted between the two side walls of the mechanism support. The front end of the printing component is movably connected to the mechanism support and its rear end is movably connected to the printhead fixing rod. A paper thickness adjustment mechanism is provided on any side wall of the mechanism support for adjusting the position of the printhead fixing rod along the height direction of the mechanism support. The printer also includes a housing mounted on a frame. The housing includes a paper output cover, on which an antenna device is rotatably connected. The antenna device includes a base mounted on the paper output cover, an antenna module mounted on the base and rotatably connected at one end to the base, and a locking mechanism mounted at the other end of the antenna module and detachably connected to the paper output cover. The antenna module has two states: a usage state and a paper replacement state. The antenna module has a protrusion, and the base has a first limiting groove and a second limiting groove that cooperate with the protrusion. The protrusion cooperates with the first limiting groove or the second limiting groove to correspond to the usage state or the paper replacement state of the antenna module, respectively.

2. The highly adaptable printer according to claim 1, characterized in that, The antenna module has a mounting cavity for installing a locking mechanism at one end away from the base. The mounting cavity has a U-shaped groove. The locking mechanism includes a locking buckle that can slide within the mounting cavity and an elastic element disposed between the locking buckle and the groove.

3. The highly adaptable printer according to claim 1, characterized in that, One end of the antenna module is fixed to the base by a first bolt. The base is provided with a buckle and a first mounting part. The paper output cover is provided with a locking step that cooperates with the buckle. The paper output cover is provided with a second mounting part for fixing the first mounting part. The first mounting part is locked to the first mounting part by a second bolt.

4. A highly adaptable printer according to claim 1, characterized in that, The slide block is provided with an elastic step to prevent the rotating rod from rotating on its own, and two anti-rotation grooves that cooperate with the elastic step are provided on the side of the rotating rod facing the elastic step.

5. A highly adaptable printer according to claim 1, characterized in that, It also includes an adjusting member disposed on and slidably connected to the adjusting seat, the adjusting member being disposed opposite to the adjusting assembly, and the paper roll being located between the adjusting member and the adjusting assembly; the adjusting member and the adjusting assembly are connected by a linkage mechanism to bring the adjusting member and the adjusting assembly closer to each other or further apart; the linkage mechanism includes a gear disposed on the back of the adjusting seat and rotatably connected to the adjusting seat, a first rack disposed on the adjusting assembly and meshing with the gear, and a second rack disposed on the adjusting member and meshing with the gear.

6. A highly adaptable printer according to claim 1, characterized in that, The printhead fixing rod includes a fixed shaft and rotating seats symmetrically arranged at both ends of the fixed shaft. The fixed shaft is located on one side of the line connecting the centers of the two rotating seats to form an eccentric structure. The two rotating seats are rotatably connected between the two side walls of the mechanism support. The end of each rotating seat extends out of the outside of the mechanism support and is fixed with a lever. The lever is provided with a limiting tooth on the side away from the rotating seat. The outer side wall of the mechanism support is provided with several limiting slots around the rotating seat that cooperate with the limiting tooth for limiting.

7. A highly adaptable printer according to claim 6, characterized in that, The printing component has symmetrical movable mounting plates at its rear end and on both sides in its width direction. The two movable mounting plates are provided with a second mounting groove. The fixed shaft passes through the two second mounting grooves along both sides of the printing component and is fixed to the rotating seats on both sides. The second mounting groove forms an opening in the direction away from the front end of the printing component so that the second mounting groove is U-shaped. The printing component has symmetrical limiting pieces at its front end and on both sides in its width direction. The inner sidewalls of both sides of the mechanism support are symmetrically provided with an L-shaped quick-release slot at the position opposite to the front end of the printing component. The quick-release slot includes a horizontal locking channel and a fixed channel along the vertical lower edge of the end of the horizontal locking channel. The front side of the horizontal locking channel extends to the front side of the mechanism support. The width of the fixed channel is adapted to the limiting piece.

8. A highly adaptable printer according to claim 1, characterized in that, The upper end of the mechanism support and above the printing assembly forms a mechanism cover. A rod is provided at the lower end of the mechanism cover. A clamping seat is slidably fitted at the bottom of the rod. An adjusting sleeve is slidably provided on the outer periphery of the rod and above the clamping seat. A clamping spring is movably fitted between the adjusting sleeve and the clamping seat and on the outer periphery of the rod. The mechanism cover is provided with an adjustment structure for changing the distance between the adjusting sleeve and the clamping seat. The adjustment structure includes an adjusting seat and a lever on one side of the adjusting seat. The bottom of the adjusting seat forms several stepped surfaces that can respectively fit with the upper end face of the adjusting sleeve. A clearance groove for the support rod is provided through the middle of the adjusting seat along the distribution direction of the several stepped surfaces. The upper end face of the adjusting sleeve is provided with a positioning protrusion. The several stepped surfaces are provided with positioning grooves that cooperate with the positioning protrusion.

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