CN111070912B - Rack device of portable thermal sublimation printer - Google Patents
Rack device of portable thermal sublimation printer Download PDFInfo
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- CN111070912B CN111070912B CN201811219755.5A CN201811219755A CN111070912B CN 111070912 B CN111070912 B CN 111070912B CN 201811219755 A CN201811219755 A CN 201811219755A CN 111070912 B CN111070912 B CN 111070912B
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- Prior art keywords
- rack
- roller
- gear
- pickup roller
- platen
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
- B41J3/36—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for portability, i.e. hand-held printers or laptop printers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J11/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
- B41J11/02—Platens
- B41J11/04—Roller platens
Abstract
The invention relates to a rack device of a portable thermal sublimation printer. The invention can simultaneously control the ascending/descending of the paper pressing roller and the ascending/descending operation of the paper pickup roller of the portable sublimation printer through the structure of the rack and the auxiliary gear, and can form the rack device of the portable sublimation printer with thin thickness and light weight.
Description
Technical Field
The present invention relates to a rack device of a portable sublimation printer capable of simultaneously controlling an ascending/descending operation of a platen roller and an ascending/descending operation of a paper pickup roller of the portable sublimation printer by a rack and pinion structure and capable of constituting a thin and lightweight portable sublimation printer.
Background
Recently, due to the rapid spread of smart phones, many people take photographs of activities or daily lives.
However, most printers are set up and used in offices or homes, and most printers are black and white printers.
Even if a color printer is provided, since a high-quality photograph cannot be printed, the photograph can be output only by a special printing mechanism in order to print the photograph taken by the smartphone.
For this reason, portable sublimation printers capable of wired/wireless communication with portable smartphones and printing photographs taken by smartphones with high quality on site are being developed and popularized gradually in recent years.
The thermal sublimation printing mechanism is a thermal recording head that sequentially prints three colors of yellow (Y), magenta (M), and cyan (C) on a printing sheet, and further prints an image on the printing sheet with high quality.
At this time, the raising/lowering operation of the paper pickup roller for moving the printing paper and the control of the raising/lowering operation of the platen roller for bringing the printing paper into close contact with the thermal recording head should be performed in accurate timing in association with each other.
For this reason, the conventional portable sublimation printer mechanism is operated by using a cam to link the ascending/descending operation of the pickup roller and the ascending/descending operation of the platen roller, but in the case of using a cam device, a separate reflector is required because a dc motor is used, and thus there are problems that the device configuration is complicated, the thickness of the printer is increased, and the weight is increased.
Further, a device for transferring the printing paper to the thermal recording head and winding the ink ribbon in association with the printing operation is required, a separate lever is required for transmitting/blocking the power to the device for winding the ink ribbon, and there is a problem that the platen roller lowering operation is not clear or the power conversion cannot be smoothly performed if the operation of the lever is not smooth.
[ Prior art documents ]
[ patent document ]
(patent document 1) document 1, Korean patent office granted patent publication No. 10-1486327 "
(cover device for portable sublimation printer) "
(patent document 2) document 2, Korean patent office granted patent publication No. 10-1507064 "
(ribbon take-up spool device for sublimation type photo printer) "
(patent document 3) document 3, Korean patent office granted patent publication No. 10-0226018 "
(video Printer) "
Disclosure of Invention
The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a rack device of a portable sublimation printer, which can accurately control the ascending/descending movements of a platen roller and a pickup roller by the sliding movement of a rack using a rack and pinion structure, can rotate the pickup roller by the sliding movement of the rack without a separate motor, and can perform power conversion of a turntable gear by the sliding movement of the rack.
Another object of the present invention is to provide a rack device for a portable sublimation printer, which has a simple structure, a small thickness, and a light weight.
In order to achieve the above object, a rack device of a portable sublimation printer according to the present invention includes: a rack 106 provided with a rack 107 engaging with the pinion 102 and moving inside the printer frame; a wedge part 115 having an inclined surface form fastened to one side of the rack 106 and lifting the platen roller 133 when the rack 106 slides; a turning lever 117 that rotates the turntable gear 120 when the rack gear 106 slides and transmits power to the winding-section driving part 127 or blocks the power; and a pickup roller driving section for moving up or down the pickup roller 105 positioned on the upper portion of the cartridge case 134 for storing the printing paper when the rack 106 slides, so that the rack device is configured to operate in association with the elevation of the platen roller 133, the rotation of the turn lever 117, and the elevation of the pickup roller 105 when the rack 106 slides.
At this time, it is characterized by further comprising: and a platen roller elevation restricting part for restricting elevation of the platen roller 133 when the rack 106 slides.
Further, the pickup roller driving section includes: a pickup roller guide groove 108 having a horizontal section 109 formed in a groove shape on a side surface of the rack 106 and an inclined section 110 extending in an inclined manner in the horizontal section 109; a support shaft 104a hinged to the printer frame; a pick roller shaft 105a spaced apart from the holder shaft 104a by a predetermined interval and hinge-coupled to the pick roller holder 104; a pickup roller holder arm 128 protruding from the holder shaft 104a in a direction perpendicular to the holder shaft 104 a; a projection 129 projected from the holder arm 128 to be inserted into the pickup roller guide groove 108, so that the rack gear device is configured as: when the protrusion 129 of the pickup roller holder arm 128 passes through the inclined section 110, the pickup roller 105 rotates and rotates centering on the holder shaft 104 a.
Further, a pickup roller gear 103 is fastened to the pickup roller shaft 105a, and the pickup roller gear 103 is engaged with a pinion 102, so that the rack device is configured such that: the pickup roller 105 rotationally moves in association with the rotation of the pinion 102.
Further, the turning lever 117 includes: body 118, rod configuration; a transport roller shaft fixing groove 119 formed on one side of the main body 118 and into which a transport roller 132 shaft is inserted; a rotary plate gear 120 hinge-coupled to the transport roller shaft fixing groove 119 at a predetermined interval; and a rotation lever fixing port 121 protruded from the other side of the body 118, wherein the rotation lever fixing port 121 is configured to be in contact with a turntable gear guide surface 112 formed on a surface extended from a lower surface of the rod 111 having a predetermined height difference from the rack gear 106, so that the rack gear device is configured such that the turntable gear 120 is engaged with or separated from the winding gear 126 when the rotation lever fixing port 121 is in contact with and passes through the inclined surface 114 of the turntable gear guide surface 112 when the rack gear 106 is slidably moved.
Further, since the turntable gear 120 is engaged with a gear fastened to a shaft of the conveying roller 132 and rotates in conjunction with the conveying roller 132, when the turntable gear 120 is engaged with the winding portion gear 126, the winding portion gear 126 rotates in conjunction with the conveying roller 132.
Further, the platen roller elevation restricting section has a platen roller shaft fixing groove 124 formed in a middle portion thereof, into which the platen roller 133 is inserted, a transport roller shaft fixing groove 119 formed in one side of the platen roller shaft fixing groove 124, into which the transport roller 132 is inserted, and a platen arm 122 having a platen arm fixing port 125 formed in the other side of the platen roller shaft fixing groove 124 so as to project laterally, the platen arm fixing port 125 being configured to contact a turntable gear guide surface 112 formed on a surface extending from a lower surface of the rod 111 having a predetermined height difference from the rack 106, and the rack device is configured such that: when the rack 106 slides, the platen arm fixing port 125 passes through the inclined surface 114 of the turntable gear guide surface 112 and contacts the lower surface of the rack 106, and the restriction of the elevation of the platen roller 133 is released.
The wedge portion 115 is formed as an inclined surface on one side of the rack 106, and when the rack 106 slides, the wedge portion 115 is inserted into or removed from the lower portion of the platen holder 136, and the platen roller 133 is raised.
The rack device of the portable sublimation printer according to the present invention, which is constructed as described above, can accurately control the ascending/descending movements of the platen roller and the pickup roller by the sliding movement of the rack, and can rotate the pickup roller without a separate motor by the sliding movement of the rack, and perform power conversion of the turntable gear 120 by the sliding movement of the rack, thereby realizing a portable sublimation printer having a simple structure and a thin thickness.
Drawings
Fig. 1 is a sectional view illustrating an internal structure of a portable sublimation printer of the invention.
Fig. 2 is a front perspective view illustrating a main portion of a rack apparatus of a portable sublimation printer according to the present invention.
Fig. 3 is a rear perspective view illustrating a main portion of a rack apparatus of a portable sublimation printer according to the present invention.
Fig. 4 is a perspective view illustrating a pick roller holder constituting the rack gear device of the present invention.
Fig. 5 is a front perspective view illustrating a rack gear constituting the rack gear device of the present invention.
Fig. 6 is a front view illustrating a rack constituting the rack gear of the present invention.
Fig. 7 is a rear perspective view illustrating a rack constituting the rack gear of the present invention.
Fig. 8 is a rear view illustrating a rack constituting the rack gear of the present invention.
Fig. 9 is a perspective view illustrating a rotation lever and a platen arm constituting the rack gear of the present invention.
Fig. 10 is a front view illustrating a rack device in a neutral state.
Fig. 11 is a front view of the rack device illustrating a state where the rack slides rearward.
Fig. 12 is a front view of the rack device illustrating a state where the rack is slidingly moved forward.
Fig. 13 is a rear view illustrating a rack gear in a neutral state.
Fig. 14 is a rear view of the rack device illustrating a state where the rack is slid rearward.
Fig. 15 is a rear view of the rack gear illustrating a state where the rack gear is slidingly moved forward.
Fig. 16 to 21 are diagrams illustrating an operation process of the portable sublimation printer of the present invention in steps.
Description of the symbols
101: the mode motor 102: auxiliary gear
103: pickup roller gear 104: pick-up roller support
104 a: the support shaft 105: pickup roller
105 a: pickup roller shaft 105 b: picking roller cover
106: the rack 107: rack gear tooth
108: pickup roller guide groove 109: horizontal interval
110: tilt section 111: rod
112: turntable gear guide surface 113: horizontal plane
114: inclined surface 115: wedge-shaped part
117: the turning lever 118: main body
119: conveying roller shaft fixing groove 120: turntable gear
121: swivel lever fixing port 122: paper pressing arm
123: main body 124: fixing groove for paper pressing roll shaft
125: platen arm fixing port 126: coiling part gear
127: winding unit drive unit 128: pick-up roller support arm
129: projection 130: thermal recording head
131: pickup roller 132: conveying roller
133: platen roller 134: ink box casing
135: the reduction gear 136: paper pressing bracket
Detailed Description
The present invention will be described in detail below with reference to preferred embodiments thereof and the accompanying drawings, in which like reference numerals denote like components.
When it is mentioned that any one constituent element "includes" another constituent element in the detailed description of the invention or the scope of the claims, unless otherwise specified, it should not be construed as being limited to be constituted only by the constituent element, but should be understood as also including other constituent elements.
In general, as shown in fig. 1, in a portable sublimation printer, a cartridge case 134 containing printing paper is stored inside the printer, and when a printing process is started, a pickup roller 105 is lowered to take out upper printing paper among the printing paper stacked inside the cartridge case 134 from the cartridge case 134, and the printing paper passes through a thermal recording head 130.
The taken out printing paper passes through the thermal recording head 130 by driving of a pinch roller 131 and a feed roller 132 of the printer, and then enters the lower part of the thermal recording head 130 again, and the thermal recording head 130 heats the ink ribbon, thereby printing a specific color on the printing paper.
At this time, a platen roller (presser) 133 is raised to bring the printing paper into close contact with the thermal recording head 130.
When printing of a specific color is completed, the platen roller 133 is lowered, the print paper is moved again by driving the pinch roller 131 and the transport roller 132 to pass through the thermal recording head 130, and then the print paper is moved to the thermal recording head 130 by driving the pinch roller 131 and the transport roller 132 to print another color. At this time, the platen roller 133 also rises to cause the printing paper to closely adhere to the thermal recording head 130.
This process is repeated to print cyan (C), magenta (M), and yellow (Y) in this order, thereby printing a photograph on the printing paper.
In such a printing process, the platen roller 133 is raised and the printing paper is brought into close contact with the thermal recording head 130 during the printing process, whereas the platen roller 133 is lowered during a simple movement of the printing paper during a non-printing process, and the printer's winding section driving unit 127 continues to wind the ink ribbon and supplies a new ink ribbon during the printing process, thereby maintaining the printing quality.
The rack device of the portable sublimation printer according to the present invention is configured to be driven and controlled in association with the pickup roller 105, the platen roller 133, and the winding section driving section 127 of the printer by a rack (rack) and pinion (pinion) structure.
As shown in fig. 2 and 3, in the rack gear device according to the present invention, a pinion 102 is connected to a shaft of a mode motor 101, and the pinion 102 is engaged with a rack gear tooth (rack gear)107 formed on an upper surface of a rack 106 in a bar state.
At this time, it is preferable that the rotation shaft of the mode motor 101 and the pinion 102 are connected through a reduction gear 135.
The rack 106 is provided with a pickup roller driving unit for moving up and down the pickup roller 105, and the pickup roller driving unit is configured as follows.
As shown in fig. 4, the pinion 102 is fastened to one side of a holder shaft 104a that is hinge-coupled to a printer main body (not shown), and is fastened to be rotatable with respect to the holder shaft 104 a.
As shown in fig. 4, the pickup roller holder 104 includes: a holder shaft 104a having both end portions hinge-coupled to a printer main body (not shown); a pick roller shaft 105a spaced apart from the holder shaft 104a by a predetermined interval; and a pick-up roller 105 fixedly secured to the pick-up roller shaft 105 a.
In this case, the pickup roller 105 is preferably housed in and protected by a pickup roller cover 105b formed on the holder shaft 104 a.
A pickup roller gear 103 is fixedly fastened to one end of the pickup roller shaft 105a, and the pickup roller gear 103 is engaged with the pinion 102.
As shown in fig. 4, a pickup roller holder arm 128 having a predetermined length is protruded from the holder shaft 104a in a direction perpendicular to the shaft 104a, and a protrusion 129 is protruded from the holder arm 128 toward one side.
As shown in fig. 3, the pinion 102 is engaged with rack gear teeth 107 formed on an upper surface of the rack 106, as shown in fig. 5 to 8, the rack gear teeth 107 are formed on the upper surface of the rack 106, as shown in fig. 8, a rod 111 is formed at an end of the rack 106 in a form in which the rack 106 extends, and the rod 111 is formed to be spaced apart from the rack 106 in a lower direction by a height.
And, a dial gear guide surface 112 is formed on a lower surface of the rod 111, and the dial gear guide surface 112 includes a flat horizontal surface 113 and an inclined surface 114 inclined at a predetermined angle.
A pickup roller guide groove 108 is formed in a groove shape on one side surface of the rack 106, and the pickup roller guide groove 108 includes a flat horizontal section 109 and an inclined section 110 formed to extend such that the horizontal section 109 is inclined downward.
A projection 129 of the pickup roller holder arm 128 of the pickup roller holder 104 is inserted into the pickup roller guide groove 108 in the form of a groove formed in one side surface of the rack gear 106.
As shown in fig. 2 and 5 to 8, a wedge portion 115 in the form of an inclined surface is integrally formed with the rack 106 on one side of the rack 106.
When the sliding motion of the rack gear 106 is generated by the rotation of the pinion gear 102, the protrusion 129 of the pickup roller holder arm 128 formed on the pickup roller holder 104 rotates about the holder shaft 104a along the pickup roller guide groove 108 formed on the side surface of the rack gear 106, and the pickup roller 105 is driven to move up and down.
A rod 111 formed by extending an end of the rack 106 controls the turn lever 117 and the platen arm 122 of fig. 2 and 3.
As shown in fig. 9, the turn lever 117 is formed with a body 118 in a bar shape, a conveying roller shaft fixing groove 119 in a hole shape at one side of the body 118, and a turn lever fixing port 121 projected in a direction of the other side of the body 118.
A turntable gear 120 that rotates in conjunction with the conveying roller 132 is hinged to an upper portion of the conveying roller shaft fixing groove 119.
The platen arm 122 is formed in a rod shape as a main body 123, a transport roller shaft fixing groove 119 is formed in a hole shape at one side of the main body 123, a platen arm fixing opening 125 protruding in a lateral direction is formed at the other side of the main body 123, and a platen roller shaft fixing groove 124 is formed in a hole shape at a middle portion of the main body 123.
A transport roller shaft is inserted into the transport roller shaft fixing groove 119 of the pivoting lever 117 and the platen arm 122. As shown in fig. 1, when the shaft of the transport roller 132 is inserted into the transport roller shaft fixing groove 119 of the turn lever 117 and the platen arm 122, the turn lever fixing opening 121 of the turn lever 117 and the platen arm fixing opening 125 of the platen arm 122 come into contact with the turntable gear guide surface 112, which is the lower surface of the rod 111 of the rack 106, as shown in fig. 3.
The dial gear 120 is located on the side of the winding gear 126 of the winding drive unit 127 for winding the ink ribbon inside the printer.
The operation of the rack device of the portable sublimation printer of the present invention configured as above will be described.
Fig. 10, 13, and 16 are views showing a state of the rack device in a neutral state in which the printer does not perform a printing operation.
In the neutral state, the protrusion 129 of the pickup roller holder arm 128 formed in the pickup roller holder 104 is positioned at the lower portion of the inclined section 110 of the pickup roller guide groove 108, and the pickup roller 105 is in a raised state.
The rotation lever fixing opening 121 of the rotation lever 117 and the platen arm fixing opening 125 of the platen arm 122 are arranged in a state of being in contact with the end of the horizontal plane 113 in the direction of the inclined surface 114 of the turntable gear guide surface 112 as the lower surface of the rod 111, and the turntable gear 120 of the rotation lever 117 is in a state of being spaced apart from the winding gear 126 by a predetermined interval.
Further, the platen roller 133 is in a fully down position, the pickup roller 105 is in a fully up position, and the paper is in a state of being positioned inside the cartridge case 134.
When printing is started in this state, as shown in fig. 17, the rack 106 slightly moves to the left (in the direction of the thermal recording head 130), and the wedge 115 formed on the rack 106 slightly lifts the platen holder 136, thereby lifting the platen roller 133 to a half-up (half up) position.
The rack gear 106 slightly moves to the left side while the swing lever fixing port 121 of the swing lever 117 moves from the horizontal surface 113 to the inclined surface 114 of the rack gear 106, the turntable gear 120 engages with the gear of the winding-section driving section 127, and the winding-section driving section 127 is rotated in the counterclockwise direction, thereby supplying a new ink ribbon to the thermal recording head 130.
At this time, since the projection 129 of the pickup roller holder arm 128 is still positioned in the inclined section 110 of the pickup roller guide groove 108, the pickup roller 105 is kept in a state of ascending without descending.
When a new ink ribbon is supplied to the thermal recording head 130 as described above, the mode motor 101 is activated to rotate the pinion 102 and move the rack 106 to the right (in the direction opposite to the thermal recording head 130) as shown in fig. 11, 14, and 18.
When the rack 106 moves backward as described above, as shown in fig. 11 and 14, the projection 129 of the pickup roller holder arm 128 rises along the inclined section 110 of the pickup roller guide groove 108 of the rack 106 and enters the horizontal section 109, and the pickup roller holder arm 128 rotates about the holder shaft 104a, so that the pickup roller 105 rotates about the holder shaft 104a and descends.
As shown in fig. 3, since the pickup roller gear 103 of the pickup roller shaft 105a is engaged with the pinion gear 102, the pickup roller 105 descends and rotates, and the paper stored in the cartridge case 134 located below the pickup roller 105 is taken out.
At this time, while the pinion 102 rotates and the rack 106 slides, the pickup roller 105 around the pickup roller shaft 105a rotates.
The rotation lever fixing opening 121 of the rotation lever 117 and the platen arm fixing opening 125 of the platen arm 122 are continuously held in contact with the horizontal section of the turntable gear guide surface 112 which is the lower surface of the rod 111 of the rack 106, and the turntable gear 120 is positioned on the gear side of the winding section driving section 127 in which the ink ribbon is wound inside the printer (in an unengaged state).
When the printing process of the printer starts, as shown in fig. 18, the pickup roller 105 descends, contacts the uppermost sheet of the cartridge case 134 and takes out the printing sheet, and moves the taken-out printing sheet until it passes through the thermal recording head 130.
At this time, the platen roller 133 is kept at the fully down position.
As shown in fig. 18, the pickup roller 105 descends to take out the printing paper from the cartridge case 134 and further to pass the printing paper through the thermal recording head 130, and then as shown in fig. 19, the printing paper moves to the thermal recording head 130 to perform printing.
After the sheet passes through the thermal recording head 130, as shown in fig. 12, 15, and 19, the mode motor 101 is reversely rotated, and the pinion 102 is reversely rotated, so that the rack 106 is moved to the left side (in the direction of the thermal recording head 130).
As shown in fig. 12, 15, and 19, when the rack gear 106 moves to the left, the protrusion 129 of the pickup roller holder arm 128 descends along the inclined section 110 of the pickup roller guide groove 108 of the rack gear 106, and the pickup roller holder arm 128 rotates about the holder shaft 104a, and in conjunction with this, the pickup roller 105 rotates about the holder shaft 104a and ascends, and the pickup roller 105 is separated from the sheet.
The rotation lever fixing opening 121 of the rotation lever 117 and the platen arm fixing opening 125 of the platen arm 122 move along the inclined surface 114 of the turntable gear guide surface 112 which is the lower surface of the rod 111 of the rack gear 106, and further move along the horizontal surface 113 to the lower portion of the rack gear 106.
As shown in fig. 16 to 21, since the shaft of the transport roller 132 is inserted into the transport roller shaft fixing groove 119 of the rotation lever 117 and the platen arm 122, when the rotation lever fixing opening 121 of the rotation lever 117 and the platen arm fixing opening 125 of the platen arm 122 move along the inclined surface 114 of the turntable gear guide surface 112 which is the lower surface of the rod 111 of the rack 106 and move to the lower portion of the rack 106 along the horizontal surface 113 as described above, the rotation lever 117 and the platen arm 122 rotate about the shaft of the transport roller 132 (counterclockwise direction in the transport roller shaft fixing groove 119 of fig. 11).
As described above, when the turn lever 117 rotates, as shown in fig. 12, the dial gear 120 of the turn lever 117 meshes with the winding-section gear 126 to rotate the winding-section driving section 127, and the ink ribbon is supplied to the thermal recording head 130.
Although not shown in the drawings, the turntable gear 120 is in a state of being engaged with a gear (not shown) of the rotating conveyance roller during printing, and thus functions to supply power of the conveyance roller 132 to the winding-section driving part 127 or block power of the conveyance roller 132.
As shown in fig. 12, 15, and 19, when the rack 106 moves to the left, the wedge portion 115 formed on one side of the rack 106 is inserted into the lower portion of the platen holder 136, and the platen roller 133 is lifted up to the fully raised (Full up) position, so that the platen roller 133 closely contacts the printing paper to the thermal recording head 130, thereby realizing sharp printing.
Then, as shown in fig. 20, the rack moves to the right side to move the wedge portion, so that the platen roller moves down to the fully lowered position, and the pickup roller 131 and the conveyance roller 132 rotate, so that the printing paper printed with one color moves to the left side again and passes through the thermal recording head 130.
The dye sublimation printer sequentially prints cyan (C), magenta (M), and yellow (Y) colors, wherein one color is printed through the process as described above, and the above process is repeated, thereby printing the remaining colors.
After all three colors are printed, as shown in fig. 21, the printing paper is discharged from the printer, and the thermal recording head 130 coats (over coats) the printing paper and discharges the printing paper, whereby the printing process is ended and the neutral state shown in fig. 16 is restored.
The restriction portion is configured so that the platen roller 133 cannot be raised when the printer is in the neutral state, and as shown in fig. 10, the platen arm fixing port 125 of the platen arm 122 is caught by the horizontal surface 113 of the lever 111 so that the platen arm 122 is restricted from being raised, and as shown in fig. 14, when the platen arm 122 is separated from the region of the turntable gear guide surface 112, the restriction of the platen arm 122 is released and the platen roller 133 can be rotated.
As described above, the present invention can accurately control the ascending/descending movements of the platen roller 133 and the pickup roller 105 by the structure of the rack 106 and the pinion 102, can rotate the pickup roller 105 without a separate motor by the sliding movement of the rack 106, and can realize the power conversion of the turntable gear 120 by the sliding movement of the rack 106, thereby realizing a portable thermal sublimation printer having a simple structure and a thin thickness.
The technical idea of the present invention is described by the above-described embodiments.
It will be apparent to those skilled in the art to which the present invention pertains that various modifications and variations can be made in the embodiments described above, as will be apparent from the disclosure of the invention.
Further, even if not explicitly shown or described, it is clear to those skilled in the art to which the present invention pertains from the description of the present invention that various modifications including the technical ideas of the present invention can be made, and the modifications fall within the scope of the claims of the present invention.
The embodiments described above with reference to the drawings are described for illustrative purposes, and the scope of the claims of the present invention is not limited to these embodiments.
Claims (7)
1. A rack gear device of a portable sublimation printer, comprising:
a rack (106) equipped with rack gear teeth (107) that mesh with the pinion (102) and that moves inside the printer frame;
a wedge-shaped part (115) which has an inclined surface form, is fastened to one side of the rack (106), and raises the paper pressing roller (133) when the rack (106) slides;
a turning lever (117) that rotates the turntable gear (120) when the rack (106) slides, and transmits power to the winding section driving section (127) or blocks power; and
a pickup roller driving part for raising or lowering a pickup roller (105) positioned at the upper part of a cartridge case (134) for storing printing paper when the rack (106) slides,
whereby the rack device is constituted: when the rack (106) slides and moves, the operation is related to the lifting of the paper pressing roller (133), the rotation of the rotary lever (117) and the lifting of the pickup roller (105),
wherein the swivel lever (117) comprises:
a body (118), a rod state;
a conveying roller shaft fixing groove (119) formed on one side of the main body (118) and into which a conveying roller (132) shaft is inserted;
a turntable gear (120) hinge-coupled to the transport roller shaft fixing groove (119) at a predetermined interval;
a pivoting lever fixing port (121) protruding from the other side of the body (118),
the rotary lever fixing opening (121) is configured to be in contact with a turntable gear guide surface (112) formed on a surface extending from a lower surface of a rod (111) having a predetermined height difference with the rack (106),
whereby the rack device is constituted: when the rack (106) slides and moves, the rotating lever fixing opening (121) is contacted with and passes through the inclined surface (114) of the rotating disc gear guide surface (112), and the rotating disc gear (120) is meshed with or separated from the winding part gear (126).
2. The rack device of a portable sublimation printer as claimed in claim 1, further comprising:
and a platen roller elevation restricting section for restricting elevation of the platen roller (133) when the rack (106) slides.
3. The rack device of a portable sublimation printer according to claim 1 or 2,
the pickup roller driving section includes:
a pickup roller guide groove (108) having a horizontal section (109) formed in a groove shape on a side surface of the rack (106) and an inclined section (110) extending in an inclined manner in the horizontal section (109);
a support shaft (104a) hinged to the printer frame;
a pick roller shaft (105a) spaced apart from the holder shaft (104a) by a predetermined interval and hinge-coupled to the pick roller holder (104);
a pickup roller holder arm (128) that protrudes from the holder shaft (104a) in a direction perpendicular to the holder shaft (104 a);
a protrusion (129) protruding from the holder arm (128) to be inserted into the pickup roller guide groove (108),
whereby the rack device is constituted: when the protrusion 129 of the pickup roller holder arm 128 passes through the inclined section 110, the pickup roller 105 rotates around the holder shaft 104a and moves up and down.
4. The rack device of a portable sublimation printer according to claim 3,
a pickup roller gear (103) is fastened to the pickup roller shaft (105a), and the pickup roller gear (103) is engaged with a pinion (102), so that the rack device is configured such that: the pickup roller (105) rotationally moves in association with the rotation of the pinion (102).
5. The rack device of a portable sublimation printer according to claim 1, wherein the rack device is constituted by:
the turntable gear (120) is engaged with a gear fastened to a shaft of the conveying roller (132) to rotate in conjunction with the conveying roller (132), and therefore, when the turntable gear (120) is engaged with the winding portion gear (126), the winding portion gear (126) rotates in conjunction with the conveying roller (132).
6. The rack device of a portable sublimation printer according to claim 2,
the platen roller elevation restricting part forms a platen roller shaft fixing groove (124) for inserting a platen roller (133) shaft in the middle part, a conveying roller shaft fixing groove (119) for inserting a conveying roller (132) is formed on one side of the platen roller shaft fixing groove (124),
a platen arm (122) with a platen arm fixing port (125) protruding to the side is formed on the other side of the platen roller shaft fixing groove (124),
the platen arm fixing port (125) is configured to be in contact with a turntable gear guide surface (112) formed on a surface extending from a lower surface of a rod (111) having a predetermined height difference with the rack (106),
whereby the rack device is constituted: when the rack (106) slides, if the platen arm fixing port (125) is contacted with the lower surface of the rack (106) through the inclined surface (114) of the turntable gear guide surface (112), the ascending restriction of the platen roller (133) is released.
7. The rack device of the portable sublimation printer of claim 1 or 2, wherein the rack device is constituted by:
the wedge-shaped part (115) is formed on one side of the rack (106) in an inclined surface form, so that when the rack (106) slides, the wedge-shaped part (115) is inserted into the lower part of the paper pressing bracket (136) or is taken out, and the paper pressing roller (133) is lifted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811219755.5A CN111070912B (en) | 2018-10-19 | 2018-10-19 | Rack device of portable thermal sublimation printer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811219755.5A CN111070912B (en) | 2018-10-19 | 2018-10-19 | Rack device of portable thermal sublimation printer |
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| Publication Number | Publication Date |
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| CN111070912A CN111070912A (en) | 2020-04-28 |
| CN111070912B true CN111070912B (en) | 2021-03-16 |
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| CN201811219755.5A Active CN111070912B (en) | 2018-10-19 | 2018-10-19 | Rack device of portable thermal sublimation printer |
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| KR100481528B1 (en) * | 2002-12-30 | 2005-04-08 | 삼성전자주식회사 | Power clutch that use lever |
| JP6066640B2 (en) * | 2012-09-14 | 2017-01-25 | キヤノン株式会社 | Image forming apparatus |
| KR101486327B1 (en) * | 2013-11-14 | 2015-02-06 | 프리닉스(주) | Cam for portable thermal sublimation printer |
| KR101507064B1 (en) * | 2014-01-24 | 2015-04-07 | 프리닉스(주) | Take-up reel operator for thermal sublimation printer |
| EP2910382A1 (en) * | 2014-02-20 | 2015-08-26 | APS Trading OOD | Platen roller presence detection system for thermal printing device |
| US10245855B2 (en) * | 2016-07-21 | 2019-04-02 | Ds Global | Photo printer |
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