CN101264699B - Printer - Google Patents
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- CN101264699B CN101264699B CN2007100794434A CN200710079443A CN101264699B CN 101264699 B CN101264699 B CN 101264699B CN 2007100794434 A CN2007100794434 A CN 2007100794434A CN 200710079443 A CN200710079443 A CN 200710079443A CN 101264699 B CN101264699 B CN 101264699B
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- 238000005520 cutting process Methods 0.000 claims abstract description 34
- 238000006073 displacement reaction Methods 0.000 claims abstract description 4
- 230000007246 mechanism Effects 0.000 claims description 82
- 238000000034 method Methods 0.000 claims description 5
- 210000001503 joint Anatomy 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims description 2
- 230000009471 action Effects 0.000 description 15
- 238000010586 diagram Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000593 degrading effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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Abstract
The invention discloses a printer, comprising a main frame, a first moving frame, a second moving frame, a split cutter which is composed of a moving blade and a shear blade, a first fixed apparatus which is positioned on the sidewall of the second moving frame, and a second fixed apparatus which is positioned on the sidewall of the main frame. The moving blade and the shear blade are respectively fixed on the first and the second moving frames. The first and the second moving frames are respectively hinged on both sides of the main frame through rotating shafts. The first fixed apparatus and the second fixed apparatus are respectively arranged on both sides of the cutter edges, wherein, the first fixed apparatus is positioned on a side near the moving blade, and is used to limit the displacement of the second moving frame corresponding with the main frame while cutting the paper; the second fixed apparatus is positioned on a side near to the shear blade, and is used to limit the rotation of the second moving frame corresponding with the main frame. The printer has the advantages of adding to the location stability of the shear blade while cutting the paper, and prolonging the service life of the cutter.
Description
Technical Field
The invention relates to the technical field of printing, in particular to a printer with a split cutter.
Background
A conventional dot matrix printer prints ink on an ink ribbon opposite to the print head by using the needles of the print head to form images or characters on a printing medium. At present, in order to improve the printing function and improve the printing efficiency, a large number of printers having an automatic cutting mechanism are available on the market, and the printing medium can be automatically cut off by the automatic cutting mechanism after printing is completed.
As shown in fig. 1, a printer disclosed in chinese patent CN03148992 has a structure as follows: the fixed frame 12 of the printer supports the print head 20, the movable frame 13 supports the paper support member 55, and the movable frame 13 is supported by the fixed frame 12 and is rotated relative to the fixed frame 12 through a hinge shaft. Further, the printer further includes: the first path 15 is used to guide the printing medium, and the second path 36 is used to guide the ink ribbon 9 to be placed in the printing position. The printer further comprises an automatic cutter whose fixed blade 31 is arranged between the first passage 15 and the second passage 36, and whose movable blade 32 is arranged on the movable frame 13, opposite to the fixed blade 31. The movable frame 13 can bring the movable blade 32 to rotate together, thereby opening the first path 15 for mounting the paper roll.
However, the prior art has at least the following problems: since the fixed blade 31 is fixed between the first passage 15 and the second passage 36, this makes the print head 20 and the paper support member 55 not fully exposed after opening the printer housing, thereby degrading the maintainability of the printer. Meanwhile, the width dimension of the fixed blade 31 is also strictly required, and if the fixed blade 31 is wide, the ink ribbon 9 may interfere with the fixed blade 31 when mounted, thereby making the mounting of the ink ribbon 9 difficult.
As shown in fig. 2, the chinese patent also discloses a printer (patent number: 200520088709.8), which has the structure: an upper frame 2 is hinged to the printer main body 1, a movable blade 21 is further provided on the upper frame 2, a fixed blade frame 3 is further hinged to the upper frame 2 on the other side of the printer main body 1, and a fixed blade 31 is provided on the fixed blade frame 3. The technology can open the upper bracket 2 by rotating along the hinge shaft so as to install the paper roll; also, the fixed blade holder 3 may be rotated open along the hinge shaft to facilitate the installation of the ink ribbon cartridge.
However, this technique has at least the following problems: since the fixed blade holder 3 is hinged to the printer body 1 and is rotatable about a hinge axis, the fixed blade 31 is unstable in position. Accordingly, the precise and stable positional relationship between the fixed blade 31 and the movable blade 21 is affected during the cutting of the paper, and thus the stability and reliability of the cutting of the cutter are affected, and the wear of the blade due to the excessive friction between the blade and the paper is caused because the relative positions of the fixed blade 31 and the movable blade 21 are unstable during the cutting of the paper, thereby reducing the life span of the cutter.
Disclosure of Invention
In view of the above, an object of one or more embodiments of the present invention is to provide a split cutter printer capable of securing a fixed blade during cutting of paper to improve the life of the cutter.
In order to solve the above problem, an embodiment of the present invention provides a printer, including:
a main frame; a first movable frame and a second movable frame; the split cutter is used for automatically cutting off the printed medium and comprises a movable blade and a fixed blade, and the movable blade and the fixed blade are respectively fixed on the first movable frame and the second movable frame; the first movable frame and the second movable frame are respectively hinged on two sides of the main frame through rotating shafts; wherein, on the second movable frame and the lateral wall of main frame, still include:
the first fixing mechanism and the second fixing mechanism are respectively positioned on two sides of the edge of the cutter; wherein,
the first fixing mechanism is positioned on one side close to the movable blade and used for limiting the displacement of the second movable frame relative to the horizontal direction and the vertical direction of the main frame when the paper is cut; and a process for the preparation of a coating,
the second fixing mechanism is located on one side close to the fixed blade and used for limiting the rotation of the second movable frame relative to the main frame when the paper is cut.
Preferably, the first fixing mechanism includes: the first positioning groove is located on the side wall of one of the main frame and the second movable frame, the first positioning shaft is located on the side wall of the other one of the main frame and the second movable frame, and when the second movable frame is closed, the first positioning shaft is in butt joint with the first positioning groove.
Preferably, the first positioning groove is located at the edge of the side wall where the groove is located.
Preferably, the second fixing mechanism includes: the second location axle and location limit, the second location axle is located on the lateral wall of one of main frame and the movable frame of second, the location limit is located on the border of the lateral wall of the other one of main frame and the movable frame of second, when the movable frame of second is closed, the overlap joint of second location axle is in the location limit.
Preferably, the second fixing mechanism includes: the second positioning groove is located in the side wall of one of the main frame and the second movable frame, the second positioning shaft is located in the side wall of the other one of the main frame and the second movable frame, and when the second movable frame is closed, the second positioning shaft is in butt joint with the second positioning groove.
Preferably, the second detent is located at the edge of the side wall where the slot is located.
Compared with the prior art, the embodiment of the invention has the following advantages:
the first and second fixing mechanisms of the present invention can not only limit the movement of the movable frame with the fixed blade, but also limit the rotation of the movable frame in a vertical plane, so that the movable frame with the fixed blade can be fixed on the main frame during paper cutting, thereby enhancing the stability of the fixed blade and prolonging the service life of the split cutter.
In addition, the fixing mechanism consists of a positioning groove and a positioning shaft, and is simple in structure, simple in process and easy to realize.
Drawings
FIG. 1 is a schematic cross-sectional view of a printer of the first prior art;
FIG. 2 is a schematic cross-sectional view of a printer of the second prior art;
FIG. 3 is an overall external view of a printer according to a preferred embodiment of the present invention;
FIG. 4 is a schematic cross-sectional view of a printer in accordance with a preferred embodiment of the present invention;
FIG. 5a is an enlarged view of the area G of the printer shown in FIG. 4;
FIG. 5b is a schematic structural view of a fixing mechanism of the printer shown in FIG. 4;
FIG. 6a is a force-bearing schematic diagram of the first fixing mechanism during paper cutting according to the embodiment of the invention;
FIG. 6b is a schematic view of the fixing mechanism being subjected to a horizontal force component during cutting of paper according to an embodiment of the present invention;
FIG. 6c is a schematic view of the fixing mechanism being subjected to a vertical force component during cutting of paper according to an embodiment of the present invention.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Fig. 3 is a schematic diagram of an overall appearance of a printer according to a preferred embodiment of the present invention. A preferred embodiment of the present invention provides a printer including: a printing mechanism (not shown), a ribbon cartridge mounting mechanism 15, an automatic paper cutting mechanism 17, a printing medium housing mechanism 13, a main frame 1, a first movable frame 2, and a second movable frame 3. Wherein, the main frame 1 is provided with a printing mechanism (not marked in the figure), an ink ribbon cassette mounting mechanism 14 and a printing medium accommodating mechanism 13; the first movable frame 2 is hinged to one side of the main frame 1 through a first rotating shaft 22, and the second movable frame 3 is opposite to the first movable frame 2, located on the other side of the main frame 1 and hinged through a second rotating shaft 32. The print head 16 of the printing mechanism (not shown) is positioned opposite to a paper support member (not shown) of the first movable frame 2 for printing. A printing medium accommodating mechanism 13 is further disposed below the first movable frame 2, and the printing medium accommodating mechanism 13 is located on the main frame 1 and is used for installing and accommodating a printing medium. The first movable frame 2 can be rotated about the first rotation axis 22 to open the printing medium accommodating mechanism 13 and exchange the printing medium. An ink ribbon cassette mounting mechanism 14 is further provided below the second movable frame 3, and the ink ribbon cassette mounting mechanism 14 is provided on the main frame 1 for mounting an ink ribbon cassette 15. The second movable frame 3 can open the cassette mounting mechanism 14 by rotating about the second rotation shaft 32, and can detach and mount the ink ribbon cassette.
The automatic paper cutting mechanism 17 is located above the printing mechanism (not shown) and automatically cuts the printed medium. The automatic paper cutting mechanism 17 includes a movable portion 21 and a fixed portion 31. Meanwhile, please refer to fig. 4, which is a schematic cross-sectional view of a printer according to an embodiment of the present invention. Wherein the movable portion 21 includes a movable blade 210 and a driving device 211, and the movable portion 21 is located on the first movable frame 2 and is rotatable around the first rotating shaft 22 together with the first movable frame 2; the fixed part 31 includes a fixed blade 310 and a supporting device 311, and the fixed part 31 is fixed to the second movable frame 3 and is rotatable around the second rotation axis 32 together with the second movable frame 3.
And a first fixing mechanism 4 and a second fixing mechanism 5 are respectively arranged on two sides of the second movable frame 3 and two side walls of the second movable frame contacting with the main frame 1. Meanwhile, referring to fig. 5, the action points of the fixed blade 310 and the movable blade 210 of the automatic paper cutting mechanism 17 are set as a, and the first fixing mechanism 4 and the second fixing mechanism 5 are located below the point a and form a triangular frame mechanism with a moment of 0 with the point a, so that the acting force generated by the first fixing mechanism 4 and the second fixing mechanism 5 can be offset with the acting force generated by the action point a during paper cutting, and the second movable frame 3 with the fixed blade 310 can be fixed on the main frame 1 of the printer during paper cutting. The preferred positional relationship of the first fixing mechanism 4 and the second fixing mechanism 5 will be described in detail below. As shown in fig. 5, the first fixing mechanism 4 is located below the action point a and on the side close to the movable blade 210, and the second fixing mechanism 5 is located below the action point a and on the side close to the fixed blade 310. As shown in fig. 5b, preferably, the first fixing mechanism 4 includes a first positioning shaft 40 and a first positioning groove 41, the first positioning groove 41 is located on a side wall of one of the main frame 1 and the second movable frame 3, the first positioning shaft 40 is located on a side wall of the other of the main frame 1 and the second movable frame 3, and when the second movable frame is closed, the first positioning shaft 40 is abutted to the first positioning groove 41. In fig. 5b, the first positioning groove 41 is located at the upper edge of the side wall of the main frame 1, and the first positioning shaft 40 is located at the position opposite to the first positioning groove 41 on the side wall of the second movable frame 3.
When the second movable frame is closed to the main frame, the first positioning shaft 40 is engaged with the first positioning groove 41, so that the second movable frame 3 is fixed to the main frame 1, and displacement of the second movable frame is restricted. The cross section of the first positioning groove 41 and the first positioning shaft 40 matched with the first positioning groove can be any geometric shape such as a circle, a square, a triangle and the like. And the depth of the first positioning groove 41 is at least equal to the distance from the axial center of the first positioning shaft 40 to the bottom of the groove. Similarly, the second fixing mechanism 5 may preferably include a second positioning shaft 50 and a positioning edge 51, as shown in fig. 5b, the positioning edge 51 is an upper edge of the side wall of the main frame 1, and the second positioning shaft 50 is located on the side wall of the second movable frame 3 at a position opposite to the positioning edge 51. When the second movable frame 3 is closed, the second positioning shaft 50 is overlapped on the positioning edge 51, so that the second movable frame 3 is limited from rotating relative to the main frame 1 in the vertical plane, and the stability of the second movable frame is enhanced. In addition, the second fixing mechanism may further include a second positioning groove formed in a side wall of one of the main frame and the second movable frame, and a second positioning shaft formed in a side wall of the other of the main frame and the second movable frame, the second positioning shaft abutting against the second positioning groove when the second movable frame is closed, so as to restrict rotation of the second movable frame 3 in the vertical plane. The cross section of the second positioning groove and the second positioning shaft matched with the second positioning groove can be in any geometrical shape such as a circle, a square, a triangle and the like.
The following describes, with reference to fig. 5, the fixing mechanism's fixing effect on the second movable frame 3 when the printer cuts paper:
when the printer cuts paper, the driving device 211 of the movable part 21 of the automatic paper cutting mechanism 17 pushes the movable blade 210 to press the fixed blade 310, so that cutting is achieved. In this process, the action point a of the fixed blade 310 and the movable blade 210 receives the horizontal component F1 and the vertical component F2 applied by the movable blade 210. A first positioning groove 41 of the first fixing mechanism 4 is matched with a first positioning shaft 40 to form a first positioning point B; the second positioning slot 51 of the second fixing mechanism 5 is matched with the second positioning shaft 50 to form a second positioning point C. When cutting paper, the first positioning point B generates a horizontal force F1 ' opposite to the point a and a vertical upward component F2 ' due to the action and reaction of the action point a, wherein the component F1 ' can balance the horizontal component F1, and the movement of the fixed part 31 in the horizontal direction is restrained; the vertically downward force component F2' balances the vertically upward force component F2, limiting the movement of the fixed part 31 in the vertical direction. However, as shown in fig. 6a, it is a schematic diagram of the force applied to the first fixing mechanism when cutting paper according to the embodiment of the present invention. Although the combination of the first positioning point B and the action point a restricts the movement of the fixed portion 31 of the automatic paper cutting mechanism 17, due to the existence of the horizontal force F1 and the vertical force F2 at the action point a, when the resultant force direction of the horizontal component force F1 and the vertical component force F2 is not on the connecting line of the action points a and B, the fixed portion 31 tends to rotate around the first positioning point B in the vertical plane. Therefore, the second fixing mechanism 5 is provided to prevent the fixing portion 31 from rotating in a vertical plane during sheet cutting.
Fig. 6b is a schematic diagram of the fixing mechanism receiving a horizontal component force when cutting paper according to the embodiment of the present invention. The action point A, the first positioning point B and the second positioning point C form a triangular frame mechanism taking the first positioning point B as a hinge point. Thus, the horizontal force F1 at the point of action a generates a torque M1 relative to the first location point B, which can be counteracted by a torque M1 'generated by a vertically upward force F2' at the second location point C. Meanwhile, as shown in fig. 6C, in the vertical direction, since the action point a is located between the first fixing mechanism 4 and the second fixing mechanism 5, the first positioning point B, the second positioning point C and the action point a form a simple beam mechanism of a mechanical principle, so that the torque formed by the vertically upward component force F2 'generated by the first positioning point B and the vertically upward component force F2' generated by the second positioning point C is balanced with the torque formed by the vertically downward component force F2 generated by the action point a, the rotation of the fixing portion 31 of the automatic paper cutting mechanism 17 around the first positioning point B in the vertical plane is limited, and the position of the fixing portion 31 during paper cutting is ensured to be stable.
In the above embodiment of the present invention, the first fixing mechanism and the second fixing mechanism are matched to stabilize the second movable frame 3, so that the fixed cutter 310 can be stably matched with the movable blade 210 to cut paper in the paper cutting process of the printer. The service life of the cutter is further prolonged.
The two fixing mechanisms in the above embodiment are respectively used for fixing the fixed blade 310 to move with the second movable frame 3 and rotate in the vertical plane, so as to increase the position stability of the fixed blade 310. In addition, the fixing mechanisms provided on the printer side walls of the present invention are not limited to the two fixing mechanisms disclosed in the above embodiments, and for example, only one fixing mechanism may be provided on the side walls of the printer main frame 1, and the fixing mechanism is located in the direction of the acting force generated at the acting point a of the cutter when cutting paper, so that the fixing mechanism can generate a reaction force having the same magnitude as the acting force generated at the acting point a and having the opposite direction when cutting paper, and counteract the acting force at the acting point a, thereby stabilizing the second movable frame 3 having the fixed blade 310. Further, the number of the fixing mechanisms on one side of the printer main frame may be more than two. For example, between the first fixing mechanism 4 and the second fixing mechanism 5 in the above embodiments, a plurality of fixing mechanisms having a combination of positioning holes and positioning shafts may be further provided. In short, the position and number of the fixing mechanism are within the scope of the present invention as long as the fixing mechanism can fix the second movable frame 3 having the fixed blade 310 to the main frame 1 of the printer, that is, as long as the torque generated by the fixing mechanism can be offset from the torque generated at the operating point a of the cutting blade during cutting.
The above-described embodiments of the present invention do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A printer comprises a main frame, a first movable frame, a second movable frame and a split cutter for automatically cutting off printed media, wherein the split cutter comprises a movable blade and a fixed blade, and the movable blade and the fixed blade are respectively fixed on the first movable frame and the second movable frame; first, the movable frame of second articulates through the pivot respectively the both sides of main frame, its characterized in that at the movable frame of second and on the lateral wall of main frame, still include:
the first fixing mechanism and the second fixing mechanism are respectively positioned on two sides of the edge of the cutter; wherein,
the first fixing mechanism is positioned on one side close to the movable blade and used for limiting the displacement of the second movable frame relative to the horizontal direction and the vertical direction of the main frame when the paper is cut; and a process for the preparation of a coating,
the second fixing mechanism is located on one side close to the fixed blade and used for limiting the rotation of the second movable frame relative to the main frame when the paper is cut.
2. The printer of claim 1, wherein the first securing mechanism comprises: the first positioning groove is located on the side wall of one of the main frame and the second movable frame, the first positioning shaft is located on the side wall of the other one of the main frame and the second movable frame, and when the second movable frame is closed, the first positioning shaft is in butt joint with the first positioning groove.
3. The printer of claim 2, wherein the first detent is located at an edge of the side wall where the slot is located.
4. The printer of claim 1, wherein the second securing mechanism comprises: the second location axle and location limit, the second location axle is located on the lateral wall of one of main frame and the movable frame of second, the location limit is located on the border of the lateral wall of the other one of main frame and the movable frame of second, when the movable frame of second is closed, the overlap joint of second location axle is in the location limit.
5. The printer of claim 1, wherein the second securing mechanism comprises: the second positioning groove is located in the side wall of one of the main frame and the second movable frame, the second positioning shaft is located in the side wall of the other one of the main frame and the second movable frame, and when the second movable frame is closed, the second positioning shaft is in butt joint with the second positioning groove.
6. A printer according to claim 5, wherein the second detent is located at an edge of the side wall at which the slot is located.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100794434A CN101264699B (en) | 2007-03-12 | 2007-03-12 | Printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100794434A CN101264699B (en) | 2007-03-12 | 2007-03-12 | Printer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101264699A CN101264699A (en) | 2008-09-17 |
| CN101264699B true CN101264699B (en) | 2011-03-16 |
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ID=39987479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007100794434A Active CN101264699B (en) | 2007-03-12 | 2007-03-12 | Printer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101264699B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101722735B (en) | 2008-10-10 | 2011-05-04 | 山东新北洋信息技术股份有限公司 | Dot-matrix printer |
| CN102211464B (en) * | 2010-04-09 | 2013-07-10 | 北京思普瑞特科技发展有限公司 | Miniprinter |
| US9694599B2 (en) * | 2014-03-24 | 2017-07-04 | Seiko Epson Corporation | Tape printing device and tape printing system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1159393A (en) * | 1995-11-21 | 1997-09-17 | 精工爱普生株式会社 | Printer with paper cutter |
| CN1470393A (en) * | 2002-07-04 | 2004-01-28 | ������������ʽ���� | Printer |
| CN2827733Y (en) * | 2005-10-31 | 2006-10-18 | 山东新北洋信息技术股份有限公司 | Printer |
| CN1861415A (en) * | 2005-05-12 | 2006-11-15 | 精工爱普生株式会社 | Platen gap adjustment assembly, and printing apparatus |
| CN2841346Y (en) * | 2005-07-01 | 2006-11-29 | 山东新北洋信息技术股份有限公司 | Printing machine |
-
2007
- 2007-03-12 CN CN2007100794434A patent/CN101264699B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1159393A (en) * | 1995-11-21 | 1997-09-17 | 精工爱普生株式会社 | Printer with paper cutter |
| CN1470393A (en) * | 2002-07-04 | 2004-01-28 | ������������ʽ���� | Printer |
| CN1861415A (en) * | 2005-05-12 | 2006-11-15 | 精工爱普生株式会社 | Platen gap adjustment assembly, and printing apparatus |
| CN2841346Y (en) * | 2005-07-01 | 2006-11-29 | 山东新北洋信息技术股份有限公司 | Printing machine |
| CN2827733Y (en) * | 2005-10-31 | 2006-10-18 | 山东新北洋信息技术股份有限公司 | Printer |
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| CN101264699A (en) | 2008-09-17 |
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