Printer core structure and printer

Abstract

The utility model provides a printer core structure and a printer, the printer core structure comprises a core support, a printing head assembly and a paper guiding assembly are arranged in the core support, a paper feeding channel is formed between the printing head assembly and the paper guiding assembly, a printing head fixing rod is movably arranged between two side walls of the core support, and the printing head fixing rod is connected with the paper guiding assembly. The front end of the printing head assembly is movably connected with the machine core support, the rear end of the printing head assembly is movably connected with the printing head fixing rod, and one side wall of the machine core support is provided with a paper thickness adjusting mechanism used for adjusting the position of the printing head fixing rod in the height direction of the machine core support. The printing head assembly can adapt to paper consumables with different thicknesses, realizes rapid and convenient replacement of the printing head assembly, adapts to elastic requirements of consumables with different paper hardness, realizes static electricity export, and better protects the printing head.

Description

Technical Field

[0001] The utility model relates to the technical field of printer cores, in particular to a printer core structure and a printer. Background Art

[0002] The existing thermal transfer printers have the following problems:

[0003] 1. It cannot adapt to the range of consumable thickness. When the thickness of consumables ranges from 0.06 to 1.5 mm, printing must be possible. Especially when the thickness of RFID consumables reaches 1 to 1.5 mm, the thickness of consumables must be supported. However, the existing technology requires the use of different models of series printers to achieve this, and users need to purchase multiple devices;

[0004] 2. The hardness of consumables varies greatly. Depending on the consumables, the elastic force of existing printers is difficult to adjust or can only meet the needs of a small number of consumables, resulting in poor printing quality;

[0005] 3. During the printing process, the consumables generate static electricity due to friction, which can easily cause damage to the print head;

[0006] 4. The print head is a consumable part, and the existing print head is difficult to replace after being damaged.

[0007] In view of this, the inventor specially designed a printer mechanism structure and a printer, and this case was thus generated. Utility Model Content

[0008] In order to solve the above problems, one of the technical solutions of the utility model is as follows:

[0009] A printer movement structure and a printer, comprising a movement bracket, wherein a print head assembly and a paper guide assembly are arranged inside the movement bracket, a paper feeding channel is formed between the print head assembly and the paper guide assembly, a print head fixing rod is movably arranged between the two side walls of the movement bracket, the front end of the print head assembly is movably connected to the movement bracket and the rear end thereof is movably connected to the print head fixing rod, and one side wall of the movement bracket is provided with a paper thickness adjustment mechanism for adjusting the position of the print head fixing rod along the height direction of the movement bracket.

[0010] Preferably, the print head fixing rod includes a fixed shaft and rotating seats symmetrically arranged at both ends of the fixed shaft, the fixed shaft is arranged on one side of the line connecting the centers of the two rotating seats to form an eccentric structure, and the two rotating seats are rotatably connected between the side walls of the movement bracket.

[0011] Preferably, the end of the rotating seat passes through the outside of the movement bracket and is fixed with a shift plate, and a side of the shift plate away from the rotating seat is provided with a limiting tooth, and the outer wall of the movement bracket is provided with a plurality of limiting grooves that cooperate with the limiting teeth around the circumference of the rotating seat.

[0012] Preferably, movable mounting plates are symmetrically provided at the rear end of the print head assembly and on both sides in the width direction thereof, and mounting grooves are penetrated through the two movable mounting plates. The fixed shaft passes through the two mounting grooves along both sides of the print head assembly and is fixed to the rotating seats on both sides.

[0013] Preferably, the installation groove forms an opening in a direction away from the front end of the print head assembly so that the installation groove as a whole is "U"-shaped, and the front end of the print head assembly and on both sides in its width direction are symmetrically provided with limit plates, and the inner side walls on both sides of the movement bracket are symmetrically provided with an L-shaped quick-release slot at a position opposite to the front end of the print head assembly, and the quick-release slot includes a horizontal card-in channel and a fixed channel along the vertical lower edge of the end of the horizontal card-in channel, the front side of the horizontal card-in channel extends to the front side of the movement bracket, and the width of the fixed channel is adapted to the limit plate.

[0014] Preferably, the print head assembly comprises a print head fixing plate for forming an upper side of the paper feeding channel, and the print head fixing plate is formed by integrally stamping a stainless steel plate.

[0015] Preferably, a terminal connection terminal is provided on the front side of the upper end of the print head assembly.

[0016] Preferably, the upper end of the movement bracket is located above the print head assembly to form a movement cover, the lower end of the movement cover is provided with a support rod, the bottom sliding sleeve of the support rod is provided with a clamping seat, the outer peripheral side of the support rod and slidingly provided with an adjusting sleeve above the clamping seat, a clamping spring is provided between the adjusting sleeve and the clamping seat and on the movable sleeve on the outer peripheral side of the support rod, and the movement cover is provided with an adjustment structure for changing the distance between the adjusting sleeve and the clamping seat.

[0017] Preferably, the adjustment structure includes an adjustment seat and a shift block arranged on one side of the adjustment seat, the bottom of the adjustment seat forms a plurality of step surfaces which can respectively fit with the upper end surface of the adjustment sleeve, a make way groove for making way for the support rod is provided in the middle part of the adjustment seat and along the distribution direction of the plurality of step surfaces, the upper end surface of the adjustment sleeve is provided with a positioning protrusion, and a plurality of the step surfaces are provided with positioning grooves which cooperate with the positioning protrusion.

[0018] The second technical solution of the utility model is as follows:

[0019] A printer includes a movement structure.

[0020] The beneficial effects of the utility model are as follows:

[0021] By installing the print head assembly movably, it can adapt to paper consumables with different thicknesses from 0.06 to 1.5 mm, and can realize quick and convenient replacement of the print head assembly;

[0022] The adjustment structure can adjust different pressures on the print head assembly to meet the elastic requirements of different paper hardness consumables;

[0023] The stainless steel print head fixing plate can better dissipate static electricity and better protect the print head. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0025] in:

[0026] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0027] Figure 2 It is a schematic diagram of a partial explosion structure highlighting a print head assembly in the utility model;

[0028] Figure 3 It is a partial cross-sectional structural schematic diagram highlighting the print head assembly in the utility model;

[0029] Figure 4 It is a partial exploded structural schematic diagram highlighting the installation structure of the print head assembly in the utility model;

[0030] Figure 5 It is a three-dimensional structural schematic diagram highlighting the installation structure of the pressing seat in the utility model;

[0031] Figure 6 It is a cross-sectional structural schematic diagram highlighting the installation structure of the pressing seat in the utility model;

[0032] Figure 7 It is a three-dimensional structural schematic diagram highlighting the pressing seat, the support rod and the adjusting sleeve in the utility model;

[0033] Figure 8 It is a three-dimensional structural schematic diagram highlighting the carbon belt force balancing mechanism in the utility model.

[0034] Description of labels:

[0035] 10. Movement bracket; 11. Paper feed channel; 12. Quick release slot; 121. Horizontal insertion channel; 122. Fixed channel; 13. Movement cover; 14. Window; 15. Balance slot; 16. Waist-shaped slot; 20. Print head assembly; 21. Movable mounting plate; 22. Mounting slot; 23. Limiting piece; 24. Print head fixing plate; 25. Terminal terminal; 30. Print head fixing rod; 31. Fixed shaft; 32. Rotating seat; 40. Paper thickness adjustment mechanism; 41. Dial plate; 42. Limiting tooth; 43. Limit Positioning slot; 44, auxiliary toggle part; 50, support rod; 51, clamping seat; 511, limiting cavity; 52, adjusting sleeve; 53, clamping spring; 54, positioning protrusion; 60, adjusting structure; 61, adjusting seat; 62, shifting block; 63, step surface; 64, clearance groove; 65, positioning groove; 70, screw; 71, gasket; 80, carbon ribbon force balancing mechanism; 81, carbon ribbon recovery balance rod; 811, flat key; 812, bayonet slot; 82, spring fixing seat; 821, bayonet part; 83, balance spring. DETAILED DESCRIPTION

[0036] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and more understandable, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0037] See also Figures 1 to 8 , is a printer movement structure and a printer as the best embodiment of the utility model, including a movement bracket 10, a print head assembly 20 and a paper guide assembly (not shown in the figure) are arranged in the movement bracket 10, a paper feeding channel 11 is formed between the print head assembly 20 and the paper guide assembly, a print head fixing rod 30 is movably arranged between the two side walls of the movement bracket 10, the front end of the print head assembly 20 is movably connected to the movement bracket 10 and the rear end thereof is movably connected to the print head fixing rod 30, and one side wall of the movement bracket 10 is provided with a paper thickness adjustment mechanism 40 for adjusting the position of the print head fixing rod 30 along the height direction of the movement bracket 10.

[0038] Preferably, Figure 2 As shown, the print head fixing rod 30 includes a fixed shaft 31 and a rotating seat 32 symmetrically arranged at both ends of the fixed shaft 31, the rotating seat 32 is a cylindrical seat, the fixed shaft 31 is arranged on one side of the center line of the two rotating seats 32 to form an eccentric shaft structure, and the two rotating seats 32 are rotatably connected between the two side walls on the inner side of the movement bracket 10. Therefore, by rotating the rotating seat 32, the fixed shaft 31 can be rotated relative to the center line of the two rotating seats 32, thereby realizing the position change of the rotating seat 32 in the height direction, and the rear end of the print head assembly 20 is lifted or lowered, so as to facilitate the change of the upper and lower spacing of the paper feeding channel 11.

[0039] Preferably, Figure 1 , 2 As shown, the end of the rotating seat 32 passes through the outside of the movement bracket 10 and is fixed with a dial plate 41. A limiting tooth 42 is provided on the side of the dial plate 41 away from the rotating seat 32. A plurality of limiting grooves 43 that cooperate with the limiting teeth 42 are provided on the outer wall of the movement bracket 10 surrounding the rotating seat 32. The dial plate 41, the limiting teeth 42 and the limiting grooves 43 constitute a paper thickness adjustment mechanism 40. In this embodiment, the dial plate 41 is fan-shaped as a whole and is arranged in contact with the outer wall of the movement bracket 10. The limiting grooves 43 are provided with 3 according to the size of the paper feeding channel 11 that needs to be changed. The three thickness changes corresponding to 0.06 to 1.5 mm can be adjusted respectively. The number and position distribution of the limit slots 43 can also be adjusted according to the needs of other thickness changes, which are not limited here. By rotating the dial plate 41, the limit teeth 42 are limited by the limit slots 43 at different positions, so that different height changes of the print head assembly 20 can be achieved, thereby achieving a change in the upper and lower spacing of the paper feeding channel 11. In addition, an auxiliary dialing portion 44 for facilitating the user's manual dialing is provided on the outer wall of the upper end of the dial plate 41, so as to facilitate the user to perform adjustment operations.

[0040] Preferably, Figure 2 , 3 As shown in Figure 4, movable mounting plates 21 are symmetrically provided at the rear end of the print head assembly 20 and on both sides in the width direction thereof, and mounting grooves 22 are penetrated by the two movable mounting plates 21. The fixed shaft 31 passes through the two mounting grooves 22 along both sides of the print head assembly 20 and is fixed to the rotating seats 32 on both sides. Specifically, in this embodiment, the mounting groove 22 is formed with an opening in a direction away from the front end of the print head assembly 20 so that the mounting groove 22 is "U"-shaped as a whole, and the front end of the print head assembly 20 and on both sides in the width direction thereof are symmetrically provided with limit plates 23, and the inner side walls on both sides of the movement bracket 10 and located at a position opposite to the front end of the print head assembly 20 are symmetrically provided with an L-shaped The quick-release card slot 12 includes a horizontal card-in channel 121 and a fixed channel 122 along the vertical lower edge of the end of the horizontal card-in channel 121. The front side of the horizontal card-in channel 121 extends to the front side of the movement bracket 10. The width of the fixed channel 122 is adapted to the limiting plate 23. Therefore, the U-shaped mounting groove 22 is first aligned with the fixed shaft 31, and the limiting plate 23 at its front end is inserted along the horizontal card-in channel 121 while pushing the mounting groove 22 toward the fixed shaft 31, and finally it is engaged with the bottom of the fixed channel 122, thereby facilitating the quick-release and quick-installation process of the entire print head assembly 20, and quickly replacing the print head after it is damaged.

[0041] Preferably, Figure 3As shown, the print head assembly 20 includes a print head fixing plate 24 for forming the upper side of the paper feeding channel 11. The print head fixing plate 24 is formed by integrally stamping a stainless steel plate, and can also be made of other conductive metal plates. Therefore, the paper feeding channel 11 through which the carbon ribbon passes uses metal to replace the original plastic, and the print head fixing plate 24 made of metal materials such as stainless steel is grounded to conduct static electricity to the ground, thereby better conducting static electricity and protecting the print head from static electricity breakdown.

[0042] Preferably, Figure 4 As shown, a terminal connection terminal 25 is provided on the front side of the upper end of the print head assembly 20 , so that more convenient wiring can be achieved through the terminal connection terminal 25 .

[0043] Preferably, as shown in Figures 5, 6, and 7, the upper end of the movement bracket 10 is located above the print head assembly 20 to form a movement cover 13, and a support rod 50 is provided at the lower end of the movement cover 13. A sliding sleeve is provided at the bottom of the support rod 50 with a clamping seat 51, and an adjusting sleeve 52 is provided on the outer peripheral side of the support rod 50 and above the clamping seat 51. A clamping spring 53 is provided between the adjusting sleeve 52 and the clamping seat 51 and on the outer peripheral side of the support rod 50. The movement cover 13 is provided with an adjustment structure for changing the distance between the adjusting sleeve 52 and the clamping seat 51. 60, specifically, the adjustment structure 60 includes an adjustment seat 61 and a shift block 62 arranged on one side of the adjustment seat 61, a plurality of step surfaces 63 are formed at the bottom of the adjustment seat 61, which can be respectively fitted with the upper end surface of the adjustment sleeve 52, a clearance groove 64 for making way for the support rod 50 is provided in the middle of the adjustment seat 61 and along the distribution direction of the plurality of step surfaces 63, a positioning convex point 54 is provided on the upper end surface of the adjustment sleeve 52, and a plurality of step surfaces 63 are provided with positioning grooves 65 that cooperate with the positioning convex point 54. In this embodiment, the upper cover 13 of the movement is provided with a hollow part for The adjustment seat 61 slides and the shift block 62 penetrates and adjusts, wherein a strip-shaped window 14 is formed on the front side of the upper cover 13 of the movement, so that the shift blocks 62 on both sides can penetrate and slide. Two groups of the above-mentioned structures for elastic compression are symmetrically distributed on both sides of the upper end of the print head assembly 20. The step surface 63 of the adjustment seat 61 is provided with 3 layers, and the intervals are changed in sequence, so as to realize three-speed adjustment. When it is necessary to adjust the elastic pressure of the compression seat 51 on the print head assembly 20, it is only necessary to press the adjustment sleeve 52 downward to compress the compression spring 53. To leave space for the lateral movement of the adjustment seat 61, the position of the adjustment seat 61 can be adjusted left and right by toggling the dial block 62 of the adjustment seat 61, so that the different step surfaces 63 are aligned with the upper end surface of the adjustment sleeve 52, and finally the adjustment sleeve 52 is loosened so that the positioning protrusion 54 at its upper end is inserted into the positioning groove 65 of the corresponding step surface 63, so that the clamping elastic force of the clamping seat 51 can be adjusted, thereby adjusting the pressure of the clamping seat 51 on both sides according to the needs of different elastic clamping forces on both sides of the print head assembly 20.

[0044] In addition, in the present embodiment, two screws 70 with gaskets 71 are provided at the upper and lower ends of the support rod 50 respectively. The upper screw 70 is used to fix the support rod 50 and the movement upper cover 13, and the lower screw 70 is used to limit the support rod 50 and the clamping seat 51. The inner side of the clamping seat 51 is hollow and forms a limiting cavity 511 whose diameter is larger than that of the support rod 50. The lower screw 70 and the corresponding gasket 71 abut against the bottom of the limiting cavity 511, thereby limiting the position of the support rod 50 and the clamping seat 51, and preventing the support rod 50 and the clamping seat 51 from dislocating while ensuring the smooth sliding of the clamping seat 51 and the support rod 50.

[0045] In particular, the present embodiment further includes a carbon ribbon force balancing mechanism 80, which includes a carbon ribbon recovery balance bar 81, a spring fixing seat 82 and a balance spring 83. Flat keys 811 are formed at both ends of the carbon ribbon recovery balance bar 81 and are plugged and engaged with the spring fixing seat 82. An easy-to-install bayonet structure is formed between the end of the carbon ribbon recovery balance bar 81 and the spring fixing seat 82, that is, an annular bayonet groove 812 is formed at the end of the carbon ribbon recovery balance bar 81 and a bayonet portion 821 that is engaged with the bayonet groove 812 is formed on the inner side of the spring fixing seat 82. The main body of the spring fixing seat 82 is vertically distributed with the carbon ribbon recovery balance bar 81, and the spring fixing seat 82 is away from a portion of the carbon ribbon recovery balance bar 81. The end is recessed inward to form an adaptation groove (not shown in the figure), and a balance spring 83 is movably installed in the adaptation groove. Balance grooves 15 for spring fixing seats 82 to be inserted are symmetrically provided on both sides of the front side of the upper end of the movement bracket 10, and the length of the balance groove 15 is greater than the extension length of the spring fixing seat 82. The end of the balance spring 83 movably contacts the side wall of the balance groove 15, and the side wall of the movement bracket 10 is provided with a strip-shaped waist groove 16, which is connected to the balance groove 15 and is used to pass through the carbon ribbon recovery balance bar 81, so that the carbon ribbon recovery balance bar 81 can be adaptively moved in the extension direction of the waist groove 16 and in the balance groove 15 through the spring fixing seat 82 and the spring, so as to adapt to different pressures during carbon ribbon recovery.

[0046] The second technical solution of the utility model is as follows:

[0047] A printer comprises the above-mentioned movement structure.

[0048] The beneficial effects of the utility model are as follows:

[0049] By movably installing the print head assembly 20, it can adapt to paper consumables with different thicknesses ranging from 0.06 to 1.5 mm, and can achieve quick and convenient replacement of the print head assembly 20;

[0050] The adjustment structure 60 can adjust different pressures on the print head assembly 20 to meet the elastic requirements of different paper hardness consumables;

[0051] The print head fixing plate 24 made of stainless steel can better conduct static electricity and better protect the print head.

[0052] The utility model is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the utility model is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the utility model, or the concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A printer mechanism structure, comprising a mechanism support (10), wherein a print head assembly (20) and a paper guide assembly are arranged in the mechanism support (10), and a paper feeding channel (11) is formed between the print head assembly (20) and the paper guide assembly, characterized in that: A print head fixing rod (30) is movably provided between the two side walls of the movement support (10); the front end of the print head assembly (20) is movably connected to the movement support (10) and the rear end thereof is movably connected to the print head fixing rod (30); and one side wall of the movement support (10) is provided with a paper thickness adjustment mechanism (40) for adjusting the position of the print head fixing rod (30) along the height direction of the movement support (10).

2. A printer mechanism structure according to claim 1, characterized in that: The print head fixing rod (30) comprises a fixing shaft (31) and rotating seats (32) symmetrically arranged at both ends of the fixing shaft (31); the fixing shaft (31) is arranged on one side of a line connecting the centers of the two rotating seats (32) to form an eccentric structure; the two rotating seats (32) are rotatably connected between the side walls of the movement bracket (10).

3. A printer mechanism structure according to claim 2, characterized in that: The end of the rotating seat (32) passes through the outside of the movement bracket (10) and is fixed with a shift plate (41), and a side of the shift plate (41) away from the rotating seat (32) is provided with a limiting tooth (42), and the outer wall of the movement bracket (10) is provided with a plurality of limiting grooves (43) that cooperate with the limiting teeth (42) around the circumference of the rotating seat (32).

4. A printer mechanism structure according to claim 2, characterized in that: A movable mounting plate (21) is symmetrically provided at the rear end of the print head assembly (20) and on both sides thereof in the width direction, and mounting grooves (22) are penetrated through the two movable mounting plates (21). The fixed shaft (31) passes through the two mounting grooves (22) along both sides of the print head assembly (20) and is fixed to the rotating seats (32) on both sides.

5. A printer mechanism structure according to claim 4, characterized in that: The installation slot (22) is formed with an opening in a direction away from the front end of the print head assembly (20) so that the installation slot (22) is in a "U" shape as a whole. The front end of the print head assembly (20) and on both sides thereof in the width direction are symmetrically provided with limit plates (23). The inner side walls of both sides of the movement bracket (10) and located at a position opposite to the front end of the print head assembly (20) are symmetrically provided with an L-shaped quick-release slot (12). The quick-release slot (12) comprises a horizontal insertion channel (121) and a fixed channel (122) along the vertical lower edge of the end of the horizontal insertion channel (121). The front side of the horizontal insertion channel (121) passes through to the front side of the movement bracket (10), and the width of the fixed channel (122) is adapted to the limit plate (23).

6. A printer mechanism structure according to claim 1, characterized in that: The print head assembly (20) comprises a print head fixing plate (24) for forming the upper side of the paper feeding channel (11); the print head fixing plate (24) is formed by integrally stamping a stainless steel plate.

7. A printer mechanism structure according to claim 1, characterized in that: The front side of the upper end of the print head assembly (20) is provided with a terminal connection terminal (25).

8. A printer mechanism structure according to claim 1, characterized in that: The upper end of the movement support (10) is located above the print head assembly (20) to form a movement cover (13); a support rod (50) is provided at the lower end of the movement cover (13); a pressing seat (51) is provided on the bottom of the support rod (50); an adjusting sleeve (52) is provided on the outer peripheral side of the support rod (50) and is slidably provided above the pressing seat (51); a pressing spring (53) is provided between the adjusting sleeve (52) and the pressing seat (51) and is movably provided on the outer peripheral side of the support rod (50); and an adjusting structure (60) is provided on the movement cover (13) for changing the distance between the adjusting sleeve (52) and the pressing seat (51).

9. A printer mechanism structure according to claim 8, characterized in that: The adjustment structure (60) comprises an adjustment seat (61) and a shifting block (62) arranged on one side of the adjustment seat (61); a plurality of step surfaces (63) which can respectively fit with the upper end surface of the adjustment sleeve (52) are formed at the bottom of the adjustment seat (61); a clearance groove (64) for making way for the support rod (50) is arranged in the middle of the adjustment seat (61) and along the distribution direction of the plurality of step surfaces (63); a positioning convex point (54) is arranged on the upper end surface of the adjustment sleeve (52); and a plurality of the step surfaces (63) are provided with positioning grooves (65) which match with the positioning convex point (54).

10. A printer, characterized in that: It comprises the movement structure as claimed in claim 1.

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