CN215159439U - Separation and reunion type paper advance wheel mechanism and printer - Google Patents
Separation and reunion type paper advance wheel mechanism and printer Download PDFInfo
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- CN215159439U CN215159439U CN202121453660.7U CN202121453660U CN215159439U CN 215159439 U CN215159439 U CN 215159439U CN 202121453660 U CN202121453660 U CN 202121453660U CN 215159439 U CN215159439 U CN 215159439U
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- paper feeding
- feeding wheel
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- wheel body
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- 230000007246 mechanism Effects 0.000 title claims abstract description 25
- 238000000926 separation method Methods 0.000 title abstract description 12
- 230000000694 effects Effects 0.000 abstract description 11
- 230000009286 beneficial effect Effects 0.000 description 8
- 230000006978 adaptation Effects 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
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Abstract
The utility model relates to a separation and reunion type paper advance wheel mechanism and printer belongs to printer technical field. This separation and reunion type paper advance wheel mechanism includes: a paper feed wheel body; the paper feeding wheel body is rotatably connected to the supporting rod; two ends of the supporting rod penetrate through the two swing arms; the output ends of the two return devices are connected with one ends of the two swing arms, and the two return devices drive the paper feeding wheel body to move upwards through the two swing arms; and the output ends of the two downward-pressing elastic devices are respectively abutted against the two ends of the supporting rod, and the paper feeding wheel body is pushed to press the medium through the downward-pressing elastic devices. The clutch type paper feeding wheel mechanism can conveniently put media, the condition of askew walking is avoided, and the printing effect is ensured.
Description
Technical Field
The utility model belongs to the technical field of the printer, concretely relates to separation and reunion type paper advance wheel mechanism and printer.
Background
Thermal transfer printers are widely used in various industries because of their advantages of high printing speed, long storage time of printed products, and the like. In the thermal transfer printer, a medium needs to be put in, and then the medium is driven to move by a paper feeding wheel to print.
Most of the current paper feeding wheels are fixed wheels, when a medium enters, the medium needs to be manually plugged in, and the situation of skew running can occur due to manual plugging, so that the printing effect is seriously influenced.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve above-mentioned technical problem and provide a separation and reunion type paper feed wheel mechanism and printer, can conveniently put into the medium, askew condition can not appear walking, has guaranteed the printing effect.
The utility model provides an above-mentioned technical problem's technical scheme as follows: a clutch-type feed roller mechanism comprising:
a paper feed wheel body;
the paper feeding wheel body is rotatably connected to the supporting rod;
two ends of the supporting rod penetrate through the two swing arms;
the output ends of the two return devices are connected with one ends of the two swing arms, and the two return devices drive the paper feeding wheel body to move upwards through the two swing arms;
and the output ends of the two downward-pressing elastic devices are respectively abutted against the two ends of the supporting rod, and the paper feeding wheel body is pushed to press the medium through the downward-pressing elastic devices.
The utility model has the advantages that: (1) the clutch function can be conveniently realized through the matching of the return device and the pressing elastic device, when a medium needs to be added, the medium can be added conveniently, the skew condition can not occur, and the printing effect is ensured;
(2) in the matched buffering of the return device and the pressing elastic device, when the medium is conveyed, the tension of the medium can be adapted, the condition that the medium is wrinkled can be effectively avoided, and the printing effect is improved;
(3) the clutch type paper feeding wheel mechanism is simple in structure, does not need to be provided with electric equipment such as a sensor and the like, and saves space.
On the basis of the technical scheme, the utility model discloses can also do following improvement.
Further, return means includes torsional spring and axle, the torsional spring rotates the cover and establishes epaxial, the one end of axle with the one end of swing arm is connected, through the torsional spring drives the swing arm rotates.
The beneficial effect of adopting the further scheme is that: conveniently realize the return effect, can support the torsional spring through the axle.
The shaft is fixedly connected with the other end of the shaft, and the fixed seat is used for being installed on external equipment.
The beneficial effect of adopting the further scheme is that: the connection of the shaft with external equipment is facilitated.
Further, the elastic device pushes down includes spring, pressure head and mount pad, the one end of spring with the mount pad is connected, the other end with pressure head fixed connection, the pressure head with the tip butt of bracing piece.
The beneficial effect of adopting the further scheme is that: the pressing head is pushed by the elasticity of the spring to drive the supporting rod to move downwards, so that the paper feeding wheel body is favorably contacted with a medium, and the medium is favorably conveyed.
Furthermore, a groove with an opening at one side is formed in the mounting seat, the spring is located in the groove, one end of the spring is fixedly connected with the groove wall of the groove, and the other end of the spring extends out of the groove and is fixedly connected with the pressure head.
The beneficial effect of adopting the further scheme is that: the spring is convenient to install, and the excessive deformation of the spring is avoided.
Further, the paper feed wheel body is provided with a plurality of, and is a plurality of the paper feed wheel body is all rotated and is connected on the bracing piece, and is a plurality of the paper feed wheel body is even interval setting.
The beneficial effect of adopting the further scheme is that: the pressure to the medium is uniform, and the medium conveying is ensured.
Furthermore, a plurality of both ends of walking the paper wheel body all are equipped with first spacing knot, be equipped with on the bracing piece with the draw-in groove of first spacing knot adaptation.
The beneficial effect of adopting the further scheme is that: the influence on medium conveying caused by random movement of the paper feeding wheel body is avoided.
Furthermore, two ends of the supporting rod penetrate through the middle parts of the two swing arms.
The beneficial effect of adopting the further scheme is that: the support rod can be driven to move in a small range.
And furthermore, a connecting rod is arranged between the other ends of the two swing arms, and two ends of the connecting rod are respectively fixedly connected with the other ends of the two swing arms.
The beneficial effect of adopting the further scheme is that: the connection strength is improved.
The utility model also provides a printer, include as above-mentioned separation and reunion type paper advance wheel mechanism.
Drawings
FIG. 1 is a perspective view of the clutch type paper feeding wheel mechanism of the present invention;
fig. 2 is a schematic perspective view of the downward pressing elastic device of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. a support bar; 2. a connecting rod; 3. swinging arms; 4. a fixed seat; 5. a torsion spring; 6. a paper feed wheel body; 7. a first limit buckle; 8. a second limit buckle; 9. pressing down the elastic device; 10. a mounting seat; 11. a groove; 12. a pressure head; 13. a spring.
Detailed Description
The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.
Examples
As shown in fig. 1 and 2, the present embodiment provides a clutch type paper feed roller mechanism including: the paper feeding wheel comprises a paper feeding wheel body 6, a support rod 1, two swing arms 3, two return devices and two pressing elastic devices 9.
The paper feeding wheel body 6 is rotatably connected to the support rod 1. Two ends of the support rod 1 penetrate through the two swing arms 3. The output ends of the two return devices are connected with one ends of the two swing arms 3, and the two return devices drive the paper feeding wheel body 6 to move upwards through the two swing arms 3. The output ends of the two pressing elastic devices 9 are respectively abutted against the two ends of the supporting rod 1, and the paper feeding wheel body 6 is pushed to press the medium through the pressing elastic devices 9.
The paper feeding wheel body 6 is used for contacting with a medium to push the medium to move, and when the medium moves, the paper feeding wheel body 6 rotates along with the medium. The surface of the paper feeding wheel body 6 can be provided with rubber which can protect media.
Wherein, bracing piece 1 is used for supporting paper advance wheel body 6, and bracing piece 1 can drive paper advance wheel body 6 and reciprocate simultaneously, realizes contact and the separation with the medium, realizes the separation and reunion function, when the medium is put into to needs, can lift paper advance wheel body 6 to the skew condition is placed to the medium can not appear, has guaranteed the printing effect to the medium, and the medium here can be the paper.
Wherein, two swing arms 3 are used for cooperating with return means, drive bracing piece 1 and paper feed wheel body 6 rebound for paper feed wheel body 6 leaves the medium, conveniently puts into the medium, and pushes down resilient means 9 and is used for promoting bracing piece 1 and paper feed wheel body 6 rebound, with the medium contact, realizes controlling the paper feed direction. The clutch function is realized through the pressure difference between the pressing elastic device 9 and the return device, the downward pressure of the pressing elastic device 9 is larger than the return force of the return device in the normal working state, when a medium needs to be put in, the downward pressure of the pressing elastic device 9 is manually reduced, the return device pushes the paper feeding wheel body 6 to move upwards, the medium can be put in, and the operation is very convenient.
The effect of the technical scheme of this embodiment is that, can conveniently realize the separation and reunion function through the return means that sets up and the cooperation of pushing down elastic device 9, when the medium was added to needs, very convenient can add, the crooked condition can not appear, has guaranteed the printing effect. In the cooperation buffering through return means and elastic device 9 pushes down, when the medium was carrying, the tension of medium can also be adapted, can effectively avoid the condition of fold to appear in the medium, improved the printing effect. The clutch type paper feeding wheel mechanism is simple in structure, does not need to be provided with electric equipment such as a sensor and the like, and saves space.
Preferably, in this embodiment, the return means includes a torsion spring 5 and a shaft, the torsion spring 5 is rotatably sleeved on the shaft, one end of the shaft is connected with one end of the swing arm 3, and the swing arm 3 is driven to rotate by the torsion spring 5.
Wherein, the axle is used for supporting torsional spring 5, and the one end and the swing arm 3 fixed connection of axle, the one end and the swing arm 3 of torsional spring 5 are connected to realize the gyration, the other end of axle is used for being connected with external equipment, and the other end of torsional spring 5 is used for being connected with external equipment, thereby the gyration drives swing arm 3 and rotates, realizes driving the rebound of paper advance wheel body 6. The return effect can be conveniently realized through the torsional spring 5 that sets up, simple structure, and torsional spring 5 realizes that the buffering effect is better simultaneously.
Preferably, in this embodiment, the device further includes a fixing base 4, the fixing base 4 is fixedly connected to the other end of the shaft, and the fixing base 4 is used for being mounted on an external device.
Wherein, fixing base 4 is used for being connected the axle with external equipment, and fixing base 4 passes through the screw installation on external equipment for the axle is connected with external equipment.
Preferably, in this embodiment, the pressing elastic device 9 includes a spring 13, a pressing head 12 and a mounting seat 10, one end of the spring 13 is connected with the mounting seat 10, the other end is fixedly connected with the pressing head 12, and the pressing head 12 abuts against the end of the supporting rod 1.
Wherein, the spring 13 is a compression spring 13 for pushing the pressure head 12 to press down the support rod 1, wherein the mounting seat 10 is used for being mounted on an external device so as to fix the spring 13, and the mounting seat 10 is mounted on the external device through a screw. Wherein, the spring 13 keeps the compression state, so that the spring 13 continuously pushes the pressure head 12 to move downwards, and the contact of the paper feeding wheel body 6 and the medium is ensured. When the support rod 1 needs to move upwards, the support rod 1 moves upwards under the action of the torsion spring 5 by controlling the pushing force of the spring 13, so that the filling of the medium is realized.
Preferably, in this embodiment, the mounting seat 10 is provided with a groove 11 with an opening on one side, the spring 13 is located in the groove 11, one end of the spring 13 is fixedly connected with a groove wall of the groove 11, and the other end extends out of the groove 11 and is fixedly connected with the pressure head 12.
Wherein, through the opening that sets up, the other end that can conveniently play extends recess 11 for promote the removal of pressure head 12, through installing spring 13 in recess 11, avoid spring 13 to appear the excessive condition of elasticity.
Preferably, in this embodiment, the paper feed wheel body 6 is provided with a plurality of, and a plurality of paper feed wheel bodies 6 all rotate to be connected on bracing piece 1, and a plurality of paper feed wheel bodies 6 are the even interval setting.
Set up a plurality ofly with paper advance wheel body 6, can avoid adopting a big paper advance wheel to appear the uneven condition of pressure to the medium, and the even interval of a plurality of paper advance wheel bodies 6 sets up for pressure to the medium is even, has guaranteed the transport of medium.
Preferably, in this embodiment, a plurality of both ends of paper advance wheel body 6 all are equipped with first spacing knot 7, are equipped with the draw-in groove with first spacing knot 7 adaptation on the bracing piece 1.
Wherein, first spacing knot 7 card is in the draw-in groove that corresponds to be located the both ends of paper advance wheel body 6, thereby avoid paper advance wheel body 6 to remove at will on bracing piece 1, guaranteed the even pressure to the medium, guaranteed the transport of medium.
Wherein, the both ends of bracing piece 1 still are equipped with the second limit buckle 8 that is used for with the external equipment adaptation, guarantee that bracing piece 1 connects on the external equipment.
Preferably, in the present embodiment, both ends of the support rod 1 pass through the middle portions of the two swing arms 3. Thereby drive bracing piece 1 and carry out reciprocating of minizone, only need produce can fill the gap of medium can, do not need bracing piece 1 to remove too high.
Preferably, in this embodiment, still be equipped with connecting rod 2 between the other end of two swing arms 3, the both ends of connecting rod 2 respectively with the other end fixed connection of two swing arms 3. The connecting structure of the support rod 1 and the swing arm 3 can be reinforced through the arranged connecting rod 2.
The embodiment also provides a printer, which comprises the clutch type paper feeding wheel mechanism.
Through this separation and reunion type paper advance wheel mechanism, can conveniently realize the separation and reunion function, when the medium is put into to needs, lift up paper advance wheel body 6, there is not the resistance when putting into the medium, does not need the hard stopper medium, also does not need the sensor to detect automatic paper feed after targetting in place. In addition, through the cooperation of the torsion spring 5 and the spring 13, the up-and-down floating force can be realized, the tension of the medium can be adapted, and the medium is prevented from being wrinkled.
In the description of the present invention, it is to be understood that the terms "center", "length", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "inner", "outer", "circumferential", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (10)
1. A clutch type paper feed roller mechanism, comprising:
a paper feeding wheel body (6);
the paper feeding wheel body (6) is rotatably connected to the supporting rod (1);
two swing arms (3), wherein two ends of the support rod (1) penetrate through the two swing arms (3);
the output ends of the two return devices are connected with one ends of the two swing arms (3), and the two return devices drive the paper feeding wheel body (6) to move upwards through the two swing arms (3);
two push down resilient means (9), two push down resilient means's (9) output respectively with the both ends butt of bracing piece (1), through push down resilient means (9) promote paper advance wheel body (6) push down the medium.
2. The clutch type paper feeding wheel mechanism according to claim 1, wherein the return device comprises a torsion spring (5) and a shaft, the torsion spring (5) is rotatably sleeved on the shaft, one end of the shaft is connected with one end of the swing arm (3), and the swing arm (3) is driven to rotate through the torsion spring (5).
3. The clutch type paper feeding wheel mechanism according to claim 2, characterized by further comprising a fixed seat (4), wherein the fixed seat (4) is fixedly connected with the other end of the shaft, and the fixed seat (4) is used for being installed on external equipment.
4. Clutch type feed roller mechanism according to claim 1, characterized in that the depression resilient means (9) comprises a spring (13), a pressure head (12) and a mounting seat (10), one end of the spring (13) is connected with the mounting seat (10) and the other end is fixedly connected with the pressure head (12), the pressure head (12) is abutted against the end of the supporting rod (1).
5. The clutch type paper feeding wheel mechanism according to claim 4, characterized in that a groove (11) with an opening at one side is formed in the mounting seat (10), the spring (13) is positioned in the groove (11), one end of the spring (13) is fixedly connected with the groove wall of the groove (11), and the other end of the spring extends out of the groove (11) and is fixedly connected with the pressure head (12).
6. The clutch type paper feeding wheel mechanism according to claim 1, characterized in that a plurality of paper feeding wheel bodies (6) are provided, the plurality of paper feeding wheel bodies (6) are rotatably connected to the support rod (1), and the plurality of paper feeding wheel bodies (6) are uniformly arranged at intervals.
7. The clutch type paper feeding wheel mechanism according to claim 6, wherein a plurality of paper feeding wheel bodies (6) are provided with first limit buckles (7) at two ends, and the support rod (1) is provided with clamping grooves matched with the first limit buckles (7).
8. Clutch type feed roller mechanism according to claim 1, characterized in that the support bar (1) has its two ends passing through the middle of the two swing arms (3).
9. The clutch type paper feeding wheel mechanism according to claim 8, characterized in that a connecting rod (2) is further arranged between the other ends of the two swing arms (3), and two ends of the connecting rod (2) are respectively and fixedly connected with the other ends of the two swing arms (3).
10. A printer comprising a clutch-type feed roller mechanism according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121453660.7U CN215159439U (en) | 2021-06-29 | 2021-06-29 | Separation and reunion type paper advance wheel mechanism and printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121453660.7U CN215159439U (en) | 2021-06-29 | 2021-06-29 | Separation and reunion type paper advance wheel mechanism and printer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215159439U true CN215159439U (en) | 2021-12-14 |
Family
ID=79380351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121453660.7U Active CN215159439U (en) | 2021-06-29 | 2021-06-29 | Separation and reunion type paper advance wheel mechanism and printer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215159439U (en) |
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2021
- 2021-06-29 CN CN202121453660.7U patent/CN215159439U/en active Active
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