Printing consumable installation structure and printer

Abstract

The utility model provides a printing consumable installation structure and a printer. The printing consumable installation structure comprises a machine body and a cover body. The machine body comprises a printing head and a transmission gear set. The mounting cavity of the machine body comprises a first position matched with a material roll shell and a second position matched with a recovery shell, the cover body comprises a roller and a roller gear which are coaxially connected, and the roller gear is meshed with the transmission gear set; when the printing supplies are placed in the mounting cavity and the cover body covers the machine body, the transmission gear set is meshed with the furling gear; the device further comprises a first positioning structure; the roller abuts against the support, the first position and a first positioning structure between the material roll shell are in a matched state, and acting force generated by transmission of the transmission gear set and the winding gear forces the material roll shell to rotate and swing in the direction penetrating into the mounting cavity with the contact position of the roller and the support as a fulcrum. The printer comprises the printing consumable installation structure. The thermal transfer ribbon recycling device solves the problem that thermal transfer ribbon recycling fails due to acting force generated by gear meshing.

Description

Technical Field

[0001] The utility model relates to the technical field of printers, in particular to a printing consumables installation structure of a thermal transfer integrated consumables and a printer. Background Art

[0002] A conventional integrated consumables assembly for a thermal transfer printer includes a housing, a reel, a reel, and a reel gear. The housing includes a larger roll housing, a smaller reel housing, and two brackets connected between the roll and reel housings. The reel is rotatably mounted within the roll housing, with the consumables wound around it and positioned within the roll housing. The reel is rotatably mounted within the reel housing, with one end of the reel extending axially outward from the reel housing and coaxially connected to the reel gear. The consumables are drawn out of the roll housing, extending exposed between the two brackets, and then into the reel housing, where they connect to the reel.

[0003] A printer compatible with these printing consumables consists of a main body and a flip cover. The main body is equipped with a mounting cavity for the consumables, a drive unit, a transmission gear set, and, naturally, a print head. The flip cover is equipped with a rubber roller and a coaxial rubber roller gear. When the consumables are placed in the mounting cavity, the rewinding gear engages with the transmission gear set. When the flip cover is closed, the exposed section of the consumables is squeezed between the rubber roller and the print head, and the rubber roller gear engages with the transmission gear set. When the drive unit in the main body drives the transmission gear set, both the rewinding shaft in the consumables and the rubber roller on the flip cover rotate, cooperating with the print head to complete printing.

[0004] The problem with existing thermal transfer printers of this type is that the consumables have a certain amount of looseness due to the need to be disassembled and assembled, and the flip cover does not block the downward pressure on the recovery shell. As a result, during the printing process, when the winding gear is subjected to the upward tooth force from the transmission gear set, the consumables will float slightly and move out of their original position, causing the carbon ribbon recovery to fail and even affecting the printing effect. Utility Model Content

[0005] The first purpose of the utility model is to provide a printing consumables installation structure that solves the problem of carbon ribbon recovery failure caused by the force generated by gear meshing.

[0006] The second purpose of the present utility model is to provide a printer that solves the problem of carbon ribbon recovery failure caused by the force generated by gear meshing.

[0007] The first object of the present invention provides a printing consumables installation structure, wherein the printing consumables to be installed include a material roll shell, a bracket and a recovery shell connected in sequence, and the printing consumables also include a winding gear arranged on the recovery shell; the printing consumables installation structure includes a machine body and a cover body; the machine body is provided with an installation cavity, the installation cavity includes a first position cooperating with the material roll shell and a second position cooperating with the recovery shell, the machine body includes a print head and a transmission gear set; the cover body includes a roller and a roller gear connected coaxially, the print head and the roller are arranged relative to each other and are between the first position and the second position, and the roller gear is meshed with the transmission gear set; when the printing consumables are placed in the installation cavity and the cover body covers the machine body, the transmission gear set is meshed with the winding gear; it also includes a first positioning structure arranged between the first position and the material roll shell; when the printing consumables are placed in the installation cavity, the roller abuts against the bracket, the first positioning structure is in a mating state, and the force generated by the transmission of the transmission gear set and the winding gear forces the material roll shell to swing in the direction of going deeper into the installation cavity with the contact position of the roller and the bracket as the fulcrum.

[0008] It can be seen from the above scheme that the utility model uses a roller to press the bracket of the printing consumables, and the pressure point of the two becomes the fulcrum for the swing of the printing consumables. Once the printer is working and the lifting force generated by the engagement of the gears acts on the recovery shell on one side of the swing fulcrum, under the principle of leverage, the side of the material roll shell on the other side of the fulcrum will tend to swing downward in the opposite direction and penetrate into the installation cavity. The cooperation of the first positioning structure is more accurate, thereby prompting the printing consumables to sink to a more accurate position. Since the shell of the printing consumables is integrated, the floating of the recovery shell is also suppressed, the separation between the gears is avoided, and the gears are kept in a good transmission cooperation state, ensuring that the consumables recovery, tape feeding and printing are all carried out stably and effectively.

[0009] A further solution is that the first positioning structure includes an axis positioning structure at the axis of the roll shell.

[0010] A further solution is that the axis positioning structure includes a center positioning groove provided at the first position and a center positioning column protruding from the material roll shell, and the center positioning groove and the center positioning column are matched at the axis.

[0011] As can be seen from the above, the printing consumables are provided with a reel-out shaft and a reel-in shaft to rotate. The accurate position of the axis of the printing consumables can ensure a good matching relationship between the printing consumables and the printer and ensure stable tape running. To this end, the first positioning structure is set as an axis positioning structure to facilitate effective positioning of the printing consumables. A more preferred method is that the axis positioning structure includes a center positioning groove provided at the first position and a center positioning column protruding from the material roll housing. The center positioning groove and the center positioning column cooperate at the axis. In this way, when the printing consumables are placed in the installation cavity, the center positioning column can naturally enter the center positioning groove, which is not only conducive to positioning but also convenient for installation.

[0012] A further solution is to further include a second positioning structure arranged between the first position and the material roll shell, and the second positioning structure is an axial positioning structure arranged on the outer periphery of the material roll shell.

[0013] A further solution is that the second positioning structure includes a groove arranged at the bottom of the first position and a protrusion protruding from the outer periphery of the material roll shell.

[0014] As can be seen from the above, the purpose of the axial positioning structure is to ensure the axial position of the printing consumables, preventing the consumables from shifting and causing wrinkles, which in turn affects the printing quality. Alternatively, the axial positioning structure is provided in the form of protrusions and grooves to facilitate the positioning and fit of the printing consumables when placed in the installation cavity.

[0015] A further solution is to set an arc-shaped boss in the first position, which includes a concave arc surface. When the printing consumables are placed in the installation cavity, the circumferential surface of the material roll shell cooperates with the arc surface; the groove is recessed in the arc surface.

[0016] As can be seen from the above, the arc-surface boss produces a further positioning effect on the material roll shell.

[0017] Another further solution is that the roller includes an optical axis segment, and the optical axis segment abuts against the bracket.

[0018] As can be seen from the above, since the roller will be driven to rotate and the bracket is stationary, friction will occur between the two. Providing an optical axis segment on the roller to perform friction cooperation with the bracket can reduce the occurrence of problems such as heat, rotation obstruction and damage caused by friction.

[0019] A further solution is that, along the axial direction of the roller, the printing consumables include two brackets arranged opposite to each other; and the two axial sides of the optical axis segment are respectively in contact with a corresponding bracket.

[0020] As can be seen from the above, this arrangement can form a more stable abutment relationship between the roller and the printing consumables, and can form two swing fulcrums on both sides of the axis, thereby avoiding the problem of the printing consumables swinging under force and affecting the printing quality.

[0021] A further solution is to provide a spring buckle on the machine body, which is engaged with the optical axis segment.

[0022] As can be seen from the above, the spring buckle can buckle the optical axis segment and keep it in the position of the compression bracket to prevent it from loosening and affecting the compression effect.

[0023] The second object of the present invention is to provide a printer comprising the above-mentioned printing consumables installation structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a structural diagram of the printing consumables to be installed.

[0025] Figure 2 This is a structural diagram of the printer body of an embodiment of the present invention.

[0026] Figure 3 This is a structural diagram of the cooperation between the printing consumables installation structure and the printing consumables in an embodiment of the printer of the present utility model.

[0027] Figure 4 This is a schematic diagram of the cooperation between the printing consumables installation structure and the printing consumables in an embodiment of the printer of the present utility model. DETAILED DESCRIPTION

[0028] See also Figure 1 The housing of the printing consumables 9 to be installed in the present invention comprises a roll housing 91, a bracket 93, and a recovery housing 92, which are connected in sequence. The roll housing 91 is larger in volume than the recovery housing 92, while the axis of the recovery housing 92 is higher than the axis of the roll housing 91. Two brackets 93 are arranged on either side of the width of the printing consumables 9 and extend upwardly from the side of the roll housing 91 to the side of the recovery housing 92. The width of the printing consumables 9 is aligned with the axial direction of the roll housing 91.

[0029] The printing consumables 9 also includes a rewinding gear 94 provided on the recycling shell 92. The unwinding shaft is rotatably mounted in the roll shell 91. The consumables are wound on the unwinding shaft and are located in the roll shell 91. The consumables are led out of the roll shell 91, extend from the position between the two brackets 93, and enter the recycling shell 92 to be connected to the rewinding shaft. Figure 1 As shown, the consumable material includes a belt section 99 that is exposed between two brackets 93.

[0030] The reel shaft is rotatably mounted in the recovery housing 92, with one end of the reel shaft extending axially outward from the recovery housing 92 and being coaxially rotatably connected to the reel gear 94. The axis of the roll housing 91 is the axis of the unwinding shaft in the roll housing 91, and the axis of the recovery housing 92 is the axis of the reel shaft in the recovery housing 92.

[0031] At both axial ends of the roll housing 91, circular center positioning posts 911 are provided at the axis of the roll housing 91. In addition, two protrusions 912 are provided on the outer periphery of the roll housing 91, which protrude radially outward from the roll housing 91 and are arranged axially along the roll housing 91.

[0032] Recombination Figure 2 and Figure 3The printing consumables mounting structure includes a body 1 and a cover (not shown). Body 1 includes a print head 11 and a transmission gear set 19. Body 1 defines a mounting cavity 100. Mounting cavity 100 includes a first position 101 that engages with the roll housing 91 and a second position 102 that engages with the recovery housing 92. Both the print head 11 and the transmission gear set 19 are located between first position 101 and second position 102. Furthermore, body 1 includes a spring catch 14 positioned between first position 101 and second position 102. Two spring catches 14 are positioned on either side of the width of mounting cavity 100, with one spring catch 14 positioned adjacent to the gear set 19 along the width of mounting cavity 100. The width of mounting cavity 100 aligns with the axial direction of roll housing 91.

[0033] In the first position 101, support seats 12 are protruded on the inner wall surfaces on both sides of its width, and a central positioning groove 120 with a semicircular depression is provided on the support seat 12, and the central positioning groove 120 is open toward the entry direction of the installation cavity 100; in addition, in the first position 101, a curved boss 13 is provided between its bottom wall and the rear wall in the length direction of the body 1, and the curved boss 13 has an arc surface 131 that is concave and faces the entrance of the first position 101, and the curved boss 13 is provided with two grooves 130 recessed in the arc surface 131, and the grooves 130 are open toward the entry direction of the installation cavity 100, and the two grooves 130 are respectively provided on both sides of the width of the installation cavity 100.

[0034] See especially Figure 3 The cover includes a coaxially connected roller 21 and a roller gear 22. The cover of this embodiment is a flip cover; in addition, the roller 21 includes an optical axis section 211, and the two optical axis sections 211 are respectively located on both sides of the main roller section of the roller 21 in the axial direction.

[0035] When the printing consumables 9 are placed in the installation cavity 100, the roll housing 91 is in the first position 101 and the recovery housing 92 is in the second position 102, and the rewinding gear 94 is engaged with a corresponding transmission gear in the transmission gear set 19. Figure 1 and Figure 2 At this time, the two center positioning posts 911 are each located in a corresponding center positioning groove 120 to achieve axial positioning of the printing consumables 9, and the two protrusions 912 are each located in a corresponding groove 130 to achieve axial positioning of the printing consumables 9. In addition, the arc surface 131 cooperates with the circumferential surface of the roll housing 91.

[0036] Among them, the center positioning column 911 and the center positioning groove 120 that cooperate with each other constitute the first positioning structure and the axial positioning structure of the utility model set between the first position 101 and the material roll shell 91, and the protrusion 912 and the groove 130 that cooperate with each other constitute the second positioning structure and the axial positioning structure of the utility model set between the first position 101 and the material roll shell 91.

[0037] Then, when the cover is closed onto the machine body 1 and shields the printing consumables 9 in the installation cavity 100, the print head 11 and the roller 21 on the cover are positioned relative to each other and are positioned between the first position 101 and the second position 102. The belt segment 99 is positioned between the print head 11 and the roller 21, and the roller gear 22 engages with a corresponding transmission gear in the transmission gear set 19. More importantly, at this point, the two optical axis segments 211 each abut against the upper side of the opposite bracket 93, pressing the bracket 93 from above. Furthermore, the two optical axis segments 211 are each engaged by a corresponding snap 14.

[0038] Recombination Figure 4 At this point, the contact point between the upper side of the bracket 93 and the optical axis section 211 becomes the fulcrum 90, while the recovery housing 92 and the material roll housing 91 are at opposite swinging ends on either side of the fulcrum 90. When the transmission gear of the transmission gear set 19 meshes with the rewinding gear 94 and transmits power, the tooth force tends to lift the recovery housing 92. However, due to the optical axis section 211 pressing the bracket 93 from above, the recovery housing 92 will not be lifted. Instead, the lever principle will cause the material roll housing 91 at the opposite swinging end to move deeper into the first position 101, facing away from the entrance of the first position 101 ( Figure 4 The first positioning structure 91 is in a mating state, and the force generated by the transmission gear set 19 and the rewinding gear 94 forces the roll housing 91 to rotate, with the contact point between the roller 21 and the bracket 93 serving as the fulcrum 90, in a direction that tends to further accurately mate with the first positioning structure.

[0039] This prevents the transmission gear of the transmission gear set 19 from separating from the take-up gear 94, ensuring a good transmission coordination between the gears and ensuring stable and effective consumables recovery, tape feeding, and printing. Furthermore, the present invention further considers the friction issues that arise when the roller 21 rotates while the bracket 93 is stationary. To this end, this embodiment provides an optical axis segment 211 on the roller 21 with a smaller roughness and a smoother surface. The contact between the optical axis segment 211 and the bracket 93 reduces friction. Furthermore, the present invention further considers the continued effectiveness of the roller 21 pressing against the bracket 93 by providing a snap hook 14.

[0040] Finally, it should be emphasized that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various changes and modifications. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A printing consumables installation structure, wherein the printing consumables to be installed include a roll housing, a bracket, and a recovery housing connected in sequence, and the printing consumables also include a winding gear provided on the recovery housing; The printing consumables installation structure includes a body and a cover; The machine body is provided with an installation cavity, the installation cavity including a first position cooperating with the material roll housing and a second position cooperating with the recovery housing, and the machine body includes a print head and a transmission gear set; The cover body includes a roller and a roller gear connected coaxially, the print head and the roller are arranged opposite to each other and are located between the first position and the second position, and the roller gear is engaged with the transmission gear set; When the printing consumables are placed in the installation cavity, the transmission gear set is engaged with the winding gear; Its characteristics are: Also included is a first positioning structure disposed between the first location and the roll housing; When the printing consumables are placed in the installation cavity and the cover body covers the machine body, the roller abuts against the bracket, the first positioning structure is in a mating state, and the force generated by the transmission gear set and the winding gear transmission forces the material roll shell to swing in the direction of going deeper into the installation cavity with the contact position between the roller and the bracket as the fulcrum.

2. The printing consumables installation structure according to claim 1, characterized in that: The first positioning structure includes an axis positioning structure at the axis of the roll shell.

3. The printing consumables installation structure according to claim 2, characterized in that: The axis center positioning structure includes a center positioning groove provided at the first position and a center positioning column protruding from the material roll shell, and the center positioning groove and the center positioning column are matched at the axis center.

4. The printing consumables installation structure according to claim 2, characterized in that: The invention also includes a second positioning structure provided between the first position and the material roll shell, wherein the second positioning structure is an axial positioning structure provided on the outer periphery of the material roll shell.

5. The printing consumables installation structure according to claim 4, characterized in that: The second positioning structure includes a groove arranged at the bottom of the first position and a protrusion protruding from the outer periphery of the material roll shell.

6. The printing consumables installation structure according to claim 5, characterized in that: A curved boss is provided in the first position, and the curved boss includes a concave arc surface. When the printing consumables are placed in the installation cavity, the circumferential surface of the roll housing cooperates with the arc surface. The groove is recessed in the arc surface.

7. The printing consumables installation structure according to any one of claims 1 to 6, characterized in that: The roller includes an optical axis segment, and the optical axis segment abuts against the bracket.

8. The printing consumables installation structure according to claim 7, characterized in that: Along the axial direction of the roller, the printing consumables include two brackets arranged opposite to each other; Both axial sides of the optical axis segment are in contact with a corresponding one of the brackets.

9. The printing consumables installation structure according to claim 8, characterized in that: The machine body is provided with a spring buckle, and the spring buckle is buckled with the optical axis segment.

10. A printer, characterized in that The printing consumables installation structure includes the printing consumables installation structure according to any one of claims 1 to 9.

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