CN114619770B

CN114619770B - Printing head assembly for thermal transfer printer

Info

Publication number: CN114619770B
Application number: CN202210329081.4A
Authority: CN
Inventors: 郭洋
Original assignee: Shenzhen Putian Technology Co ltd
Current assignee: Shenzhen Putian Technology Co ltd
Priority date: 2022-03-30
Filing date: 2022-03-30
Publication date: 2023-03-03
Anticipated expiration: 2042-03-30
Also published as: CN114619770A

Abstract

The invention relates to the technical field of thermal transfer printers, and discloses a printing head assembly for a thermal transfer printer, which solves the problems that the pressure of a printing head is insufficient, the adhesion effect of printed colors is poor, once the pressure of the printing head is too large, the conditions that an adhesive tape and an ink ribbon cannot move and are clamped easily occur, and if the printing head is not parallel to printing paper, the situation that the color of one side is darker and the color of the other side is lighter can occur; can be to the inclination that the thermal transfer printer head body was beaten to the regulation thermal transfer for the thermal transfer printer head body is parallel with printing paper, and then makes the printing effect better, and is convenient for adjust the dynamics that the thermal transfer printer head body pressed printing paper.

Description

Printing head assembly for thermal transfer printer

Technical Field

The invention belongs to the technical field of thermal transfer printers, and particularly relates to a printing head assembly for a thermal transfer printer.

Background

The principle of thermal transfer printers is the process of transferring ink from a carbon ribbon medium to paper or film using heat and pressure to transfer the ink to the label as it passes through the print head and platen of the printer. The print head needs to be pressure adjusted before printing.

In the thermal transfer process, once the pressure of the printing head is insufficient, the adhesion effect of the printed color is poor; once the pressure of the printing head is too large, the situation that the adhesive tape and the ink ribbon cannot be moved and clamped easily occurs, in the printing process, whether the printing head of the thermal transfer printer is parallel to the printing paper directly influences the printing effect, and if the printing head is not parallel to the printing paper, the situation that one side of the printing head is dark in color and the other side of the printing head is light in color may occur.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides the printing head assembly for the thermal transfer printer, which effectively solves the problems that the printing head pressure in the background technology is insufficient, the adhesion effect of the printed color is poor, once the printing head pressure is too high, the condition that the adhesive tape and the ink ribbon are not easy to be stuck and clamped easily occurs, in the printing process, whether the printing head of the thermal transfer printer is parallel to the printing paper or not directly influences the printing effect, and if the printing head is not parallel to the printing paper, the condition that the color of one side is darker and the color of the other side is lighter can occur.

In order to achieve the purpose, the invention provides the following technical scheme: a printing head assembly for a thermal transfer printer comprises a thermal transfer printing head body, wherein a fixed supporting seat is arranged above the thermal transfer printing head body, the bottom of the fixed supporting seat is fixedly connected with a first fixed column, the bottom of the first fixed column is fixedly connected with a fixed ball, the top of the thermal transfer printing head body is provided with a fixed connecting block, the top of the fixed connecting block is provided with a spherical groove, the spherical groove is matched with the fixed ball, the fixed connecting block and the thermal transfer printing head body pass through a printing head anti-falling mechanism, and a printing head multidirectional adjusting and pressing assembly matched with the thermal transfer printing head body is arranged on the fixed supporting seat;

print head multidirectional regulation and press down subassembly including setting up in two first thread bushings and two second thread bushings of fixed bolster below, the equal fixedly connected with in bottom of first thread bushing and second thread bushing presses the briquetting, the equal fixedly connected with extension board in both sides of heat-transfer seal print head body, be equipped with first screw thread regulation post in the first thread bushing, be equipped with second screw thread regulation post in the second thread bushing, first screw thread regulation post and second screw thread regulation post all run through fixed bolster, first screw thread regulation post and second screw thread regulation post all are connected with fixed bolster through first bearing, the top of fixed bolster is equipped with four first gears, the top of first screw thread regulation post and second screw thread regulation post respectively with the first gear fixed connection who corresponds, equal fixedly connected with first fixed plate on first thread bushing and the second thread bushing, four locating plates of bottom fixedly connected with of fixed bolster, and the locating plate runs through first fixed plate, the screw thread opposite direction on two first screw thread regulation posts, be equipped with on the fixed bolster with first thread bushing and the second thread bushing different to the gear synchronous regulation gear hole of top of fixed bolster, the top fixed bolster is equipped with the second gear connection control mechanism that the second screw thread regulation post and the top of supporting bolster is equipped with the mechanism.

Preferably, print press control mechanism including setting up in the third screw thread regulation post of fixed bolster top, the bottom and the fixed bolster of third screw thread regulation post pass through the second bearing and are connected, the outside cover of second bearing is equipped with the ring gear, two second fixed plates of fixedly connected with on the third screw thread regulation post, the one end of second fixed plate is connected through first connecting plate with the top of ring gear, the outside cover of third screw thread regulation post is equipped with the third thread bush, the top fixedly connected with regulating plate of third thread bush, the equal fixedly connected with curb plate in both sides of regulating plate, one side that the regulating plate was kept away from to the curb plate is equipped with the backup pad, the bottom of backup pad and the top fixed connection of fixed bolster, the top of regulating plate is equipped with the mounting panel, first recess has been seted up at the top of curb plate, two first slides of bottom fixedly connected with of mounting panel, the bottom of first slide is located first recess, and the bottom inner wall of first slide is connected through first compression spring.

Preferably, a rectangular hole is formed in one side of the supporting plate, a sliding block is arranged in the rectangular hole, one side of the sliding block is fixedly connected with one side of the side plate, the gear ring is meshed with the gear hole, a first handle is fixedly connected to the top of the first connecting plate, after the position of the thermal transfer printing head body is adjusted, the thermal transfer printing head body is contacted with printing paper, the mounting plate is mounted on a box cover of the printer, the first compression spring is in a compression state, and further the first compression spring applies pressure to the side plate, through the elasticity that first compression spring produced for the thermal transfer printer head body presses printing paper, adjusts the post rotation through driving third screw thread, adjusts the length that the third screw thread regulation post is located the third thread bush, and then adjusts the position of regulating plate and curb plate, thereby adjusts the distance between curb plate and the first slide, can adjust first compression spring's deformation degree, thereby adjusts the dynamics that the thermal transfer printer head body pressed printing paper.

Preferably, the gear resetting mechanism comprises two first through holes formed in the top of the fixed support seat, two second fixed columns fixedly connected to the bottom of the second gear, two first limiting holes are formed in the second fixed columns, second through holes are formed in the inner wall of each first through hole, one side of the fixed support seat is provided with a pulling plate, two limiting rods fixedly connected to one side of the pulling plate, two second grooves are formed in one side of the fixed support seat, two second sliding plates fixedly connected to one side of each pulling plate, the second sliding plates are located in the second grooves, and one side of each second sliding plate is connected with the inner wall of one side of each second groove through a stretching spring.

Preferably, the second fixing column penetrates through the first through hole, the limiting rod penetrates through the second through hole, one end of the limiting rod is located in one corresponding first limiting hole, one side of the pull plate, which is far away from the fixed support seat, is fixedly connected with a pull ring, the position of the third threaded adjusting column is limited by the cooperation of the second gear and the first gear, the first threaded adjusting column and the second threaded adjusting column are limited, the first threaded adjusting column and the second threaded adjusting column are prevented from rotating due to non-human factors, the third threaded adjusting column is prevented from rotating due to non-human factors by the cooperation of the gear hole and the gear ring, the third threaded adjusting column is prevented from rotating due to non-human factors by driving the pull plate, one end of the limiting rod is separated from the corresponding first limiting hole by driving the pull plate, the extension spring is in a stretching state, limitation on the position of the second fixing column can be removed, the second gear is moved upwards, the second threaded adjusting column is prevented from being meshed with the gear ring, the gear hole is prevented from being meshed with the gear ring, limitation on the position of the third threaded adjusting column is removed, one side of the first gear is moved to one side of the second threaded adjusting column, and the second threaded adjusting column is prevented from being meshed with the pull plate, and the second gear, the second gear is prevented from being meshed with the pull plate, and the support seat, and the second gear is prevented from being meshed with the second gear, and the second gear.

Preferably, the four first gears are respectively arranged around the second gear, the first gears are meshed with the second gear, bottoms of the two pressing blocks are in contact with the top of the extension plate, and bottoms of the other two pressing blocks are in contact with the top of the thermal transfer printing head body.

Preferably, the different-direction synchronous adjusting mechanism comprises a first worm arranged below the fixed support seat, a second worm is arranged below the first worm, worm wheels are sleeved outside the first thread adjusting column and the second thread adjusting column, third fixing plates are arranged at two ends of the first worm and the second worm, the top of each third fixing plate is fixedly connected with the bottom of the fixed support seat, one ends of the first worm and the second worm are respectively connected with the corresponding third fixing plates through third bearings, and the other ends of the first worm and the second worm respectively penetrate through the other corresponding third fixing plate.

Preferably, the first worm and the second worm have one end fixedly connected with a rotary table, the rotary table is provided with two second handles, the first worm is meshed with a worm wheel on the first thread adjusting column, the second worm is meshed with a worm wheel on the second thread adjusting column, the first thread adjusting column and the second thread adjusting column stably move in the vertical direction through the matching of the first fixing plate and the positioning plate, one of the rotary tables is driven to rotate, the rotary table drives the first worm to rotate, the two first thread adjusting columns rotate through the matching of the first worm and the worm wheel, the thread directions on the two first thread adjusting columns are opposite, the two first thread adjusting columns move in the opposite vertical direction, the inclination angle of the left and right directions of the thermal transfer printing head body is driven to change through the two pressing blocks, the other rotary table is driven to rotate, the two second thread adjusting columns rotate through the matching of the second worm and the worm wheel, the thread directions on the two second thread adjusting columns are opposite, the inclination angle of the two second thread adjusting columns moves in the opposite vertical directions, and the inclination angle of the thermal transfer printing head body is driven to change through the front and back directions of the two pressing blocks.

Preferably, beat printer head anti-disengaging mechanism and include that two set up in the splint that printer head body top was beaten in the heat-transfer seal, printer head body and splint fixed connection are beaten in the heat-transfer seal, the spacing hole of second has been seted up to one side of splint, one side of splint is equipped with the fly leaf, one side fixedly connected with limiting plate of fly leaf, the slot has been seted up at the top of fly leaf, two reference columns of the equal fixedly connected with in both sides of fixed connection block, and the reference column runs through the fly leaf, the outside cover of fixed connection block is equipped with the loose ring, the equal fixedly connected with second connecting plate in both sides of loose ring, the bottom fixedly connected with picture peg of second connecting plate, the equal fixedly connected with fourth fixed plate in both sides of fixed connection block, fourth fixed plate and loose ring pass through second compression spring and connect.

Preferably, two splint contact with the both sides of fixed connection piece respectively, the limiting plate is located the spacing downthehole of second, the picture peg is located the slot, the loose ring is located between fourth fixed plate and the reference column, shift up through the drive loose ring, make second compression spring be in compression state, and then make the picture peg break away from the slot, remove the fixed to the fly leaf position, remove through the drive fly leaf, make the limiting plate break away from the spacing hole of second, cooperation through reference column and fly leaf, avoid the vertical direction of fly leaf relatively fixed connection piece to rock, when the limiting plate breaks away from the spacing hole of second, can remove the fixed to splint, and then remove the fixed to thermal transfer printer head body.

Compared with the prior art, the invention has the beneficial effects that:

(1) The fixed connecting block can rotate in multiple directions relative to the first fixed column and the fixed ball through the cooperation of the fixed ball and the spherical groove, the first thread sleeve and the second thread sleeve can stably move in the vertical direction through the cooperation of the first fixed plate and the positioning plate, one of the turntables is driven to rotate, the turntables drives the first worm to rotate, the two first thread adjusting columns are driven to rotate through the cooperation of the first worm and the worm wheel, the thread directions on the two first thread adjusting columns are opposite, the two first thread sleeves can move in different vertical directions, the inclination angle in the left and right directions of the thermal transfer printing head body is driven to change through the two pressing blocks, the other turntable is driven to rotate, the two second thread adjusting columns are driven to rotate through the cooperation of the second worm and the worm wheel, the thread directions on the two second thread adjusting columns are opposite, the two second thread sleeves can move in different vertical directions, the inclination angle in the front and back directions of the thermal transfer printing head body can be changed through the cooperation of the two pressing blocks, the inclination angle of the thermal transfer printing head body can be adjusted in multiple directions, the thermal transfer printing head body is parallel to the printing paper, and the printing effect is better;

(2) After the position of the thermal transfer printing head body is adjusted, the thermal transfer printing head body is contacted with printing paper, the mounting plate is mounted on a box cover of a printer, the first compression spring is in a compression state, and further exerts pressure on the side plate through the first compression spring, so that the thermal transfer printing head body presses the printing paper through the elastic force generated by the first compression spring;

(3) The first thread adjusting column and the second thread adjusting column are prevented from rotating due to non-human factors by matching the second gear with the first gear, the position of the third thread adjusting column is limited by matching the gear hole with the gear ring, the third thread adjusting column is prevented from rotating due to non-human factors, one end of the limiting rod is separated from the corresponding first limiting hole by driving the pulling plate to move, the stretching spring is in a stretching state, the limitation on the position of the second fixing column can be removed, the second gear is moved upwards, the second gear is not meshed with the first gear any more, the first thread adjusting column and the second thread adjusting column can rotate, the gear hole is not meshed with the gear ring any more, the limitation on the position of the third thread adjusting column is removed, the other first limiting hole is moved to one side of the limiting rod, the pulling plate is loosened, the stretching spring drives the pulling plate to move, the limiting rod is inserted into the corresponding first limiting hole, the second fixing column is fixed relatively, the second gear is kept not meshed with the second gear and the supporting seat is not required to be in a supporting state;

(4) The utility model discloses a portable thermal transfer printer, including a movable plate, a limiting plate, a reference column, a movable plate, a slot, a limiting plate, a movable ring, a movable plate, a second compression spring, a picture peg, a slot, remove the fixing to the fly leaf position, remove through the drive fly leaf, make the limiting plate break away from the spacing hole of second, through the cooperation of reference column and fly leaf, avoid the vertical direction of fly leaf relatively fixed connection piece to rock, when the limiting plate breaks away from the spacing hole of second, can remove the fixing to splint, and then remove the fixing to thermal transfer printer head body, be convenient for demolish thermal transfer printer head body, the dismouting efficiency is improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.

In the drawings:

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of a portion A of the structure of FIG. 1;

FIG. 3 is a schematic view of a fixing support base according to the present invention;

FIG. 4 is a schematic view of a portion of the enlarged structure at B in FIG. 3;

FIG. 5 is a schematic structural diagram of a printing press control mechanism according to the present invention;

FIG. 6 is a schematic structural view of the gear return mechanism of the present invention;

FIG. 7 is a schematic structural diagram of the asynchronous adjusting mechanism of the present invention;

FIG. 8 is a schematic structural view of a print head retaining mechanism according to the present invention;

in the figure: 1. a thermal transfer printhead body; 2. fixing the supporting seat; 3. a first fixed column; 4. fixing the ball; 5. fixing a connecting block; 6. a spherical groove; 7. a first threaded sleeve; 8. a second threaded sleeve; 9. a first threaded adjustment post; 10. a second threaded adjustment post; 11. a first gear; 12. a first bearing; 13. a first fixing plate; 14. positioning a plate; 15. a second gear; 16. a gear hole; 17. a pressing block; 18. a third threaded adjustment post; 19. a second bearing; 20. a gear ring; 21. a second fixing plate; 22. a first connecting plate; 23. a third thread bush; 24. an adjusting plate; 25. mounting a plate; 26. a side plate; 27. a first slide plate; 28. a first groove; 29. a first compression spring; 30. a support plate; 31. a rectangular hole; 32. a slider; 33. a first handle; 34. a first through hole; 35. a second fixed column; 36. a second through hole; 37. a first limit hole; 38. a limiting rod; 39. pulling a plate; 40. a second groove; 41. a second slide plate; 42. an extension spring; 43. a pull ring; 44. a first worm; 45. a second worm; 46. a worm gear; 47. a third fixing plate; 48. a third bearing; 49. a turntable; 50. a second handle; 51. a splint; 52. a second limiting hole; 53. a movable plate; 54. a limiting plate; 55. a slot; 56. a movable ring; 57. a second connecting plate; 58. inserting plates; 59. a fourth fixing plate; 60. a second compression spring; 61. a positioning column; 62. an extension plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments; all other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

In a first embodiment, as shown in fig. 1 to 8, the thermal transfer printing head comprises a thermal transfer printing head body 1, a fixed support seat 2 is arranged above the thermal transfer printing head body 1, a first fixed column 3 is fixedly connected to the bottom of the fixed support seat 2, a fixed ball 4 is fixedly connected to the bottom of the first fixed column 3, a fixed connection block 5 is arranged at the top of the thermal transfer printing head body 1, a spherical groove 6 is formed at the top of the fixed connection block 5, the spherical groove 6 is matched with the fixed ball 4, the fixed connection block 5 and the thermal transfer printing head body 1 pass through a printing head anti-falling mechanism, and a printing head multidirectional adjusting and pressing assembly matched with the thermal transfer printing head body 1 is arranged on the fixed support seat 2;

print head multidirectional regulation and press the subassembly including setting up two first thread bush 7 and two second thread bushes 8 in fixed bolster 2 below, the equal fixedly connected with in bottom of first thread bush 7 and second thread bush 8 presses the briquetting 17, the equal fixedly connected with extension plate 62 in both sides of printer head body 1 is beaten in the heat-transfer seal, be equipped with first screw thread regulation post 9 in the first thread bush 7, be equipped with second screw thread regulation post 10 in the second thread bush 8, first screw thread regulation post 9 and second screw thread regulation post 10 all run through fixed bolster 2, first screw thread regulation post 9 and second screw thread regulation post 10 all are connected with fixed bolster 2 through first bearing 12, the top of fixed bolster 2 is equipped with four first gear 11, the top of first screw thread regulation post 9 and second screw thread regulation post 10 respectively with the first gear 11 fixed connection that corresponds, all fixedly connected with first fixed plate 13 on first thread bush 7 and the second thread bush 8, the bottom fixed bolster 2 is connected with four locating plates 14, and locating plate 14 runs through first fixed plate 13, two screw thread regulation post 9 on, the top of second screw thread regulation post 10 is equipped with the opposite direction on the fixed bolster 2 and the top of second screw thread regulation post 15, the top fixed bolster 2 is equipped with the synchronous press the mechanism 15 and the second screw thread regulation post 15, the top that the screw thread regulation mechanism 15 is equipped with the synchronous press the second gear 15 on the fixed bolster 2 and the fixed gear 15.

Second embodiment, on the basis of the first embodiment, as shown in fig. 1, 2 and 5, the printing press control mechanism includes a third threaded adjusting column 18 disposed above the fixed support seat 2, a bottom end of the third threaded adjusting column 18 is connected to the fixed support seat 2 through a second bearing 19, a gear ring 20 is sleeved outside the second bearing 19, two second fixing plates 21 are fixedly connected to the third threaded adjusting column 18, one end of each second fixing plate 21 is connected to a top of the gear ring 20 through a first connecting plate 22, a third threaded sleeve 23 is sleeved outside the third threaded adjusting column 18, an adjusting plate 24 is fixedly connected to a top of the third threaded sleeve 23, side plates 26 are fixedly connected to both sides of the adjusting plate 24, a support plate 30 is disposed on a side of the side plate 26 away from the adjusting plate 24, a bottom of the support plate 30 is fixedly connected to a top of the fixed support seat 2, a mounting plate 25 is disposed above the adjusting plate 24, a top of the side plate 26 is provided with a first groove 28, two first sliding plates 27 are fixedly connected to a bottom of the mounting plate 25, a bottom end of the first sliding plate 27 is disposed in the first groove 28, a bottom of the first sliding plate 27 is connected to a first sliding plate 32, a sliding block 32 is disposed on a side of the first sliding block, and a sliding block 32 is connected to a sliding block 16, and a sliding block 16 is disposed on a side of the first sliding block 16;

after the position control of thermal transfer printer head body 1 finishes, thermal transfer printer head body 1 contacts with printing paper, the mounting panel 25 is installed on the case lid of printer, first compression spring 29 is in compression state, and then first compression spring 29 exerts pressure to curb plate 26, elasticity through first compression spring 29 production, make thermal transfer printer head body 1 press printing paper, adjust post 18 through driving the third screw thread and rotate, adjust the length that third screw thread adjusts post 18 and is located third thread bush 23, and then adjust the position of regulating plate 24 and curb plate 26, thereby adjust the distance between curb plate 26 and the first slide 27, can adjust the deformation degree of first compression spring 29, thereby adjust the dynamics that thermal transfer printer head body 1 pressed printing paper.

Third embodiment, on the basis of the second embodiment, as shown in fig. 3 and 6, the gear resetting mechanism includes two first through holes 34 formed in the top of the fixed support base 2, two second fixed columns 35 are fixedly connected to the bottom of the second gear 15, two first limiting holes 37 are formed in the second fixed columns 35, second through holes 36 are formed in the inner walls of the first through holes 34, a pulling plate 39 is disposed on one side of the fixed support base 2, two limiting rods 38 are fixedly connected to one side of the pulling plate 39, two second grooves 40 are formed in one side of the fixed support base 2, two second sliding plates 41 are fixedly connected to one side of the pulling plate 39, the second sliding plates 41 are located in the second grooves 40, one side of the second sliding plates 41 is connected to the inner wall of one side of the second grooves 40 through an extension spring 42, the second fixed columns 35 penetrate through the first through holes 34, the limiting rods 38 penetrate through the second through holes 36, one end of the limiting rods 38 is located in one of the corresponding first limiting holes 37, a pulling plate 39 is fixedly connected to one side of the pulling plate 41, four first gears 11 are respectively disposed on the second gear 15, and the top of the second gear 15 is engaged with the top of the thermal transfer printing head 17;

through the cooperation of the second gear 15 and the first gear 11, the first thread adjusting column 9 and the second thread adjusting column 10 are limited, the first thread adjusting column 9 and the second thread adjusting column 10 are prevented from rotating due to non-human factors, through the cooperation of the gear hole 16 and the gear ring 20, the position of the third thread adjusting column 18 is limited, the third thread adjusting column 18 is prevented from rotating due to non-human factors, the pulling plate 39 is driven to move, one end of the limiting rod 38 is separated from the corresponding first limiting hole 37, the extension spring 42 is in a stretching state, limitation on the position of the second fixing column 35 can be removed, the second gear 15 is moved upwards, the second gear 15 is not meshed with the first gear 11, the first thread adjusting column 9 and the second thread adjusting column 10 can rotate, meanwhile, the gear hole 16 is not meshed with the gear ring 20, limitation on the position of the third thread adjusting column 18 is removed, the other first limiting hole 37 moves to one side of the limiting rod 38, the pulling plate 39 is loosened, the extension spring 42 drives the pulling plate 39 to move, the corresponding second thread adjusting column 38 is inserted into the second gear hole 38, and the supporting seat 15 is not required to be meshed with the second gear 15, and the supporting seat 15 is kept in a state.

Fourth embodiment, on the basis of the first embodiment, as shown in fig. 3 and 7, the asynchronous adjusting mechanism includes a first worm 44 disposed below the fixed support base 2, a second worm 45 is disposed below the first worm 44, worm wheels 46 are respectively sleeved outside the first threaded adjusting column 9 and the second threaded adjusting column 10, third fixing plates 47 are respectively disposed at two ends of the first worm 44 and the second worm 45, a top of each third fixing plate 47 is fixedly connected with a bottom of the fixed support base 2, one ends of the first worm 44 and the second worm 45 are respectively connected with the corresponding third fixing plates 47 through third bearings 48, the other ends of the first worm 44 and the second worm 45 respectively penetrate through the other corresponding third fixing plate 47, a rotary table 49 is fixedly connected to one ends of the first worm 44 and the second worm 45, two second handles 50 are disposed on the rotary table 49, the first worm 44 is engaged with the worm wheel 46 on the first threaded adjusting column 9, and the second worm 45 is engaged with the worm wheel 46 on the second threaded adjusting column 10;

through the cooperation of first fixed plate 13 and locating plate 14, make the steady removal of first thread bush 7 and the vertical direction of second thread bush 8, rotate through driving one of them carousel 49, make carousel 49 drive first worm 44 and rotate, and then through the cooperation of first worm 44 and worm wheel 46, make two first screw thread regulation posts 9 rotate, and the screw thread direction on two first screw thread regulation posts 9 is opposite, and then make two first thread bushes 7 vertical direction incorgruous removal, thereby the inclination of direction about driving thermal transfer printer head body 1 through two pressing blocks 17 changes, the same thing, drive another carousel 49 and rotate, through the cooperation of second worm 45 and worm wheel 46, make two second screw thread regulation posts 10 rotate, and the screw thread direction on two second screw thread regulation posts 10 is opposite, and then make two second thread bushes 8 vertical direction incorgruous removals, thereby the inclination of direction about driving thermal transfer printer head body 1 through two pressing blocks 17 changes, the inclination of thermal transfer printer head body 1 can be adjusted to the multidirectional, make thermal transfer printer head body 1 parallel, and then make the printing paper more good printing effect.

Fifth embodiment, based on the first embodiment, as shown in fig. 3, 4, and 8, the print head anti-drop mechanism includes two clamping plates 51 disposed on the top of the thermal transfer print head body 1, the thermal transfer print head body 1 is fixedly connected to the clamping plates 51, one side of the clamping plate 51 is provided with a second limiting hole 52, one side of the clamping plate 51 is provided with a movable plate 53, one side of the movable plate 53 is fixedly connected to a limiting plate 54, the top of the movable plate 53 is provided with a slot 55, two sides of the fixed connection block 5 are fixedly connected to two positioning posts 61, the positioning posts 61 penetrate through the movable plate 53, the fixed connection block 5 is externally sleeved with a movable ring 56, two sides of the movable ring 56 are fixedly connected to a second connection plate 57, the bottom of the second connection plate 57 is fixedly connected to an inserting plate 58, two sides of the fixed connection block 5 are fixedly connected to a fourth fixing plate 59, the fourth fixing plate 59 and the movable ring 56 are connected by a second compression spring 60, the two clamping plates 51 are respectively contacted to two sides of the fixed connection block 5, the limiting plate 54 is located in the second limiting hole 52, the inserting plate 58 is located in the slot 55, and the movable ring 56 is located between the fourth fixing plate 59 and the positioning post 61;

move up through the drive activity ring 56 for second compression spring 60 is in compression state, and then make picture peg 58 break away from slot 55, remove the fixed to the fly leaf 53 position, move through drive fly leaf 53, make limiting plate 54 break away from second spacing hole 52, through the cooperation of reference column 61 and fly leaf 53, avoid fly leaf 53 to rock relative fixed connection block 5 vertical direction, when limiting plate 54 breaks away from second spacing hole 52, can remove the fixed to splint 51, and then remove the fixed to thermal transfer printer head body 1, be convenient for demolish thermal transfer printer head body 1, the dismouting efficiency has been improved.

The working principle is as follows: during operation, the fixed connecting block 5 can rotate in multiple directions relative to the first fixed column 3 and the fixed ball 4 through the matching of the fixed ball 4 and the spherical groove 6, the first thread bush 7 and the second thread bush 8 can stably move in the vertical direction through the matching of the first fixed plate 13 and the positioning plate 14, one of the turntables 49 is driven to rotate, the turntable 49 drives the first worm 44 to rotate, the two first thread adjusting columns 9 are driven to rotate through the matching of the first worm 44 and the worm wheel 46, the thread directions on the two first thread adjusting columns 9 are opposite, the two first thread bushes 7 can move in different vertical directions, the inclination angle of the thermal transfer printing head body 1 in the left and right directions is driven to change through the two pressing blocks 17, the other turntable 49 is driven to rotate, and the two second thread adjusting columns 10 are driven to rotate through the matching of the second worm 45 and the worm wheel 46, and the thread directions on the two second thread adjusting columns 10 are opposite, so that the two second thread sleeves 8 move in opposite directions in the vertical direction, the inclination angles of the thermal transfer printing head body 1 in the front and back directions are driven to change by the two pressing blocks 17, the inclination angle of the thermal transfer printing head body 1 can be adjusted in multiple directions, so that the thermal transfer printing head body 1 is parallel to printing paper, and the printing effect is better, after the position of the thermal transfer printing head body 1 is adjusted, the thermal transfer printing head body 1 is in contact with the printing paper, the mounting plate 25 is mounted on a box cover of a printer, the first compression spring 29 is in a compression state, and the first compression spring 29 applies pressure to the side plate 26, so that the thermal transfer printing head body 1 presses the printing paper by the elastic force generated by the first compression spring 29, and the third thread adjusting column 18 is driven to rotate, the length of the third thread adjusting column 18 in the third thread sleeve 23 is adjusted, and then the positions of the adjusting plate 24 and the side plate 26 are adjusted, so that the distance between the side plate 26 and the first sliding plate 27 is adjusted, the deformation degree of the first compression spring 29 can be adjusted, the force of pressing printing paper by the thermal transfer printing head body 1 is adjusted, through the cooperation of the second gear 15 and the first gear 11, the cooperation of the first thread adjusting column 9 and the second thread adjusting column 10 is limited, the rotation of the first thread adjusting column 9 and the second thread adjusting column 10 due to non-human factors is avoided, through the cooperation of the gear hole 16 and the gear ring 20, the position of the third thread adjusting column 18 is limited, the rotation of the third thread adjusting column 18 due to non-human factors is avoided, through driving the pulling plate 39 to move, one end of the limiting rod 38 is separated from the corresponding first limiting hole 37, the pulling spring 42 is in a stretching state, the limitation on the position of the second fixed column 35 can be removed, the second gear 15 is moved upwards, the second gear 15 is not meshed with the first gear 11 any more, the first thread adjusting column 9 and the second thread adjusting column 10 can rotate, meanwhile, the gear hole 16 is not meshed with the gear ring 20 any more, the limitation on the position of the third thread adjusting column 18 is removed, the third thread column 18 can rotate, the other first limiting hole 37 moves to one side of the limiting rod 38, the pulling plate 39 is loosened, the pulling plate 39 is driven by the pulling spring 42 to move, the limiting rod 38 is inserted into the corresponding first limiting hole 37, the second fixed column 35 is fixed relative to the fixed support base 2, the second gear 15 is kept in a state of not being meshed with the second gear 15 and the gear ring 20, the second gear 15 does not need to be always supported, the second compression spring 60 is in a compressed state by driving the movable ring 56 to move upwards, and then the inserting plate 58 is separated from the inserting slot 55, the fixing of the position of the movable plate 53 is released, the movable plate 53 is driven to move, the limit plate 54 is separated from the second limit hole 52, the movable plate 53 is prevented from shaking in the vertical direction relative to the fixed connecting block 5 through the matching of the positioning column 61 and the movable plate 53, when the limit plate 54 is separated from the second limit hole 52, the fixing of the clamping plate 51 can be released, the fixing of the thermal transfer printing head body 1 is released, the thermal transfer printing head body 1 is convenient to detach, and the dismounting efficiency is improved.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A printhead assembly for a thermal transfer printer, comprising a thermal transfer printhead body (1), characterized in that: a fixed supporting seat (2) is arranged above the thermal transfer printing head body (1), the bottom of the fixed supporting seat (2) is fixedly connected with a first fixed column (3), the bottom of the first fixed column (3) is fixedly connected with a fixed ball (4), the top of the thermal transfer printing head body (1) is provided with a fixed connecting block (5), the top of the fixed connecting block (5) is provided with a spherical groove (6), the spherical groove (6) is matched with the fixed ball (4), the fixed connecting block (5) and the thermal transfer printing head body (1) are arranged in a matched mode through a printing head anti-falling mechanism, and a printing head multidirectional adjusting and pressing assembly matched with the thermal transfer printing head body (1) is arranged on the fixed supporting seat (2);

the multidirectional adjusting and pressing assembly of the printing head comprises two first threaded sleeves (7) and two second threaded sleeves (8) which are arranged below a fixed supporting seat (2), the two first threaded sleeves (7) are respectively positioned at the left side and the right side below the fixed supporting seat (2), the two second threaded sleeves (8) are respectively positioned at the inner side and the outer side below the fixed supporting seat (2), pressing blocks (17) are respectively and fixedly connected at the bottoms of the first threaded sleeves (7) and the second threaded sleeves (8), extension plates (62) are respectively and fixedly connected at the two sides of a body (1) of the thermal transfer printing head, first threaded adjusting columns (9) are arranged in the first threaded sleeves (7), second threaded adjusting columns (10) are arranged in the second threaded sleeves (8), the first threaded adjusting columns (9) and the second threaded adjusting columns (10) penetrate through the fixed supporting seat (2), the first threaded adjusting columns (9) and the second threaded adjusting columns (10) are respectively connected with the fixed supporting seat (2) through first bearings (12), four first gears (11) are arranged at the top of the fixed supporting seat (2), the first threaded adjusting columns (9) and the second threaded adjusting columns (10) are respectively connected with a positioning plate (13) which corresponds to the top of the fixed supporting seat (7), the positioning plate (14) penetrates through the first fixing plate (13), the directions of threads on the two first thread adjusting columns (9) are opposite, the directions of threads on the two second thread adjusting columns (10) are opposite, a heterodromous synchronous adjusting mechanism matched with the first thread sleeve (7) and the second thread sleeve (8) is arranged on the fixing supporting seat (2), a second gear (15) is arranged at the top of the fixing supporting seat (2), a gear hole (16) is formed in the top of the second gear (15), the second gear (15) is connected with the fixing supporting seat (2) through a gear resetting mechanism, and a printing pressing control mechanism is arranged at the top of the fixing supporting seat (2); the anti-drop mechanism of the printing head comprises two clamping plates (51) arranged at the top of a body (1) of the thermal transfer printing head, the body (1) of the thermal transfer printing head is fixedly connected with the clamping plates (51), one side of each clamping plate (51) is provided with a second limiting hole (52), one side of each clamping plate (51) is provided with a movable plate (53), one side of each movable plate (53) is fixedly connected with a limiting plate (54), the top of each movable plate (53) is provided with a slot (55), two sides of each fixed connecting block (5) are fixedly connected with two positioning columns (61), each positioning column (61) penetrates through each movable plate (53), a movable ring (56) is sleeved outside each fixed connecting block (5), two sides of each movable ring (56) are fixedly connected with a second connecting plate (57), the bottom of each second connecting plate (57) is fixedly connected with an inserting plate (58), two sides of each fixed connecting block (5) are fixedly connected with a fourth fixing plate (59), and the fourth fixing plates (59) and the movable rings (56) are connected through second compression springs (60); the two clamping plates (51) are respectively contacted with two sides of the fixed connecting block (5), the limiting plate (54) is positioned in the second limiting hole (52), the inserting plate (58) is positioned in the inserting groove (55), and the movable ring (56) is positioned between the fourth fixing plate (59) and the positioning column (61).

2. A printhead assembly for a thermal transfer printer according to claim 1, wherein: the printing pressing control mechanism comprises a third thread adjusting column (18) arranged above a fixed supporting seat (2), the bottom end of the third thread adjusting column (18) is connected with the fixed supporting seat (2) through a second bearing (19), a gear ring (20) is sleeved outside the second bearing (19), two second fixing plates (21) are fixedly connected onto the third thread adjusting column (18), one end of each second fixing plate (21) is connected with the top of the gear ring (20) through a first connecting plate (22), a third thread sleeve (23) is sleeved outside the third thread adjusting column (18), an adjusting plate (24) is fixedly connected onto the top of the third thread sleeve (23), side plates (26) are fixedly connected onto two sides of the adjusting plate (24), a supporting plate (30) is arranged on one side of the side plate (26) far away from the adjusting plate (24), the bottom of the supporting plate (30) is fixedly connected with the top of the fixed supporting seat (2), a mounting plate (25) is arranged above the adjusting plate (24), a first groove (28) is formed in the top of the side plate (26), two first sliding plates (27) are fixedly connected with two first sliding plates (27), and a first groove (28) is formed in the inner side of the first sliding plate (25), and the bottom of the first sliding plate (27) is connected with the bottom inner wall of the first groove (28) through a first compression spring (29).

3. A printhead assembly for a thermal transfer printer according to claim 2, wherein: rectangular hole (31) have been seted up to one side of backup pad (30), are equipped with slider (32) in rectangular hole (31), one side of slider (32) and one side fixed connection of curb plate (26), gear ring (20) and gear hole (16) mesh mutually, the top fixedly connected with first in command (33) of first connecting plate (22).

4. A printhead assembly for a thermal transfer printer according to claim 1, wherein: the gear resetting mechanism comprises two first through holes (34) formed in the top of the fixed support seat (2), two second fixed columns (35) fixedly connected to the bottom of the second gear (15), two first limiting holes (37) are formed in the second fixed columns (35), second through holes (36) are formed in the inner wall of the first through holes (34), one side of the fixed support seat (2) is provided with a pulling plate (39), two limiting rods (38) fixedly connected to one side of the pulling plate (39), two second grooves (40) are formed in one side of the fixed support seat (2), two second sliding plates (41) fixedly connected to one side of the pulling plate (39), the second sliding plates (41) are located in the second grooves (40), and one side of each second sliding plate (41) is connected with the inner wall of one side of each second groove (40) through a stretching spring (42).

5. The printhead assembly of claim 4, wherein: the second fixing column (35) penetrates through the first through hole (34), the limiting rod (38) penetrates through the second through hole (36), one end of the limiting rod (38) is located in one corresponding first limiting hole (37), and one side, far away from the fixed support base (2), of the pulling plate (39) is fixedly connected with a pulling ring (43).

6. A printhead assembly for a thermal transfer printer according to claim 1, wherein: the four first gears (11) are respectively arranged on the periphery of the second gear (15), the first gears (11) are meshed with the second gear (15), the bottoms of the two pressing blocks (17) along the inner side and the outer side of the thermal transfer printing head body (1) are in contact with the top of the extension plate (62), and the bottoms of the other two pressing blocks (17) are in contact with the top of the thermal transfer printing head body (1).

7. A printhead assembly for a thermal transfer printer according to claim 1, wherein: different direction synchronous control mechanism is including setting up in first worm (44) of fixed bolster (2) below, the below of first worm (44) is equipped with second worm (45), the outside of first screw thread regulation post (9) and second screw thread regulation post (10) all is equipped with worm wheel (46), the both ends of first worm (44) and second worm (45) all are equipped with third fixed plate (47), the top of third fixed plate (47) and the bottom fixed connection of fixed bolster (2), the one end of first worm (44) and second worm (45) all is connected with corresponding third fixed plate (47) respectively through third bearing (48), the other end of first worm (44) and second worm (45) runs through another corresponding third fixed plate (47) respectively.

8. A printhead assembly for a thermal transfer printer according to claim 7, wherein: the one end of first worm (44) and second worm (45) all fixedly connected with carousel (49), is equipped with two second handles (50) on carousel (49), and first worm (44) are engaged with worm wheel (46) that are located first screw thread regulation post (9), and second worm (45) are engaged with worm wheel (46) that are located second screw thread regulation post (10).