CN210591063U - Paper feeding driving device and printer comprising same - Google Patents
Paper feeding driving device and printer comprising same Download PDFInfo
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- CN210591063U CN210591063U CN201921214321.6U CN201921214321U CN210591063U CN 210591063 U CN210591063 U CN 210591063U CN 201921214321 U CN201921214321 U CN 201921214321U CN 210591063 U CN210591063 U CN 210591063U
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Abstract
The utility model relates to a paper feed drive arrangement and contain its printer, paper feed drive arrangement include drive roller, pinch roller and adjustment mechanism, and the drive roller is parallel to each other and corresponds the setting in the both sides of print media with the pinch roller, and adjustment mechanism includes lever mechanism and regulation actuating mechanism, and the pinch roller rotates with lever mechanism's one end to be connected, adjusts actuating mechanism and drives lever mechanism's the other end and removes and make the pinch roller be close to or keep away from the drive roller. The utility model has the advantages that: the adjusting driving mechanism drives the pressing roller to compress or keep away from the driving roller through the lever mechanism, so that the printing medium and the driving roller are compressed or loosened, the pressing roller compresses the printing medium in the printing process, the driving roller provides power for moving the printing medium, the pressing roller is loosened when the printing medium needs to be withdrawn, the printing medium is withdrawn, and the power can be saved by reasonably setting the length ratio of force arms on two sides of a fulcrum of the lever mechanism.
Description
Technical Field
The utility model relates to a printer field, concretely relates to paper feed drive arrangement and contain its printer.
Background
In the printing process of the printer, after the printing of the printing medium is finished, the printing medium needs to be provided with forward power during the process of advancing. In the prior art, a rotating roller is usually arranged below or above a printing medium, and the printing medium is driven to move by friction force, but the transmission mode is easy to slip and unreliable.
SUMMERY OF THE UTILITY MODEL
The utility model discloses how the technical problem that will solve drives print media and removes.
The utility model provides an above-mentioned technical problem's technical scheme as follows: the utility model provides a paper feed drive arrangement, includes drive roller, pinch roller and adjustment mechanism, the drive roller with the pinch roller is parallel to each other and corresponds the both sides that set up at print medium, adjustment mechanism includes lever mechanism and regulation actuating mechanism, the pinch roller with lever mechanism's one end is rotated and is connected, it drives to adjust actuating mechanism lever mechanism's the other end removes and makes the pinch roller is close to or keeps away from the drive roller.
The utility model has the advantages that: the adjusting driving mechanism drives the pressing roller to compress or keep away from the driving roller through the lever mechanism, so that the printing medium and the driving roller are compressed or loosened, the pressing roller compresses the printing medium in the printing process, the driving roller provides power for moving the printing medium, the pressing roller is loosened when the printing medium needs to be withdrawn, the printing medium is withdrawn, and the power can be saved by reasonably setting the length ratio of force arms on two sides of a fulcrum of the lever mechanism.
On the basis of the technical scheme, the utility model discloses can also do following improvement.
Furthermore, the adjusting and driving mechanism comprises an electromagnet, the lever mechanism is made of ferromagnetic metal, and the electromagnet drives the other end of the lever mechanism to move through magnetic adsorption.
The beneficial effect of adopting the further scheme is that: the adjusting driving mechanism comprises an electromagnet, magnetic force is generated after the electromagnet is electrified, the other end of the lever mechanism is adsorbed, and whether the pressing roller presses the driving roller or not can be controlled by controlling the on-off of the electromagnet.
Furthermore, the adjusting and driving mechanism further comprises a yoke, and the yoke is fixedly connected to one side, close to the lever mechanism, of the electromagnet.
The beneficial effect of adopting the further scheme is that: the yoke iron is used for enhancing the suction force of the electromagnetic coil of the electromagnet, and magnetic lines of force generated by the electromagnetic coil are sealed inside, so that the efficiency of the electromagnet is improved.
Further, still include stop gear, spherical cavity has in the yoke, one side of spherical cavity has the cavity opening, stop gear's one end penetrates spherical cavity, the other end wear out the cavity opening and with lever mechanism's other end fixed connection.
The beneficial effect of adopting the further scheme is that: the rotation range of the lever mechanism is prevented from being too large after the electromagnet is powered off, the rotation range of the lever mechanism is reduced, the control of the electromagnet on the reciprocating movement of the lever mechanism is facilitated, and meanwhile, the guiding in the rotation process of the lever mechanism can be realized.
Furthermore, the limiting mechanism is a ball head screw rod, a ball head of the ball head screw rod penetrates into the spherical cavity, and the screw rod of the ball head screw rod is in threaded connection with the other end of the lever mechanism.
The beneficial effect of adopting the further scheme is that: the ball head screw rod is of an existing structure, can be directly purchased and used, an additional structure is not required to be designed, production cost is reduced, and production efficiency is improved.
Further, the lever mechanism comprises a supporting rod and a swinging arm, the supporting rod is parallel to the pressing roller, the middle of the swinging arm is rotatably connected with the supporting rod, the pressing roller is rotatably connected with one end of the swinging arm, and the adjusting and driving mechanism drives the other end of the swinging arm to move and enables the swinging arm to rotate around the supporting rod.
Further, still include the motor, the output shaft of motor with drive roller transmission is connected and drive the drive roller axial rotation.
The beneficial effect of adopting the further scheme is that: the motor drives the driving roller to rotate, and moving power is provided for the printing medium.
Furthermore, the number of the adjusting mechanisms is two, and two ends of the pressing roller are respectively connected with one end of each of the two lever mechanisms in a rotating mode.
The beneficial effect of adopting the further scheme is that: two ends of the pressing roller are provided with two adjusting mechanisms, so that the transmission is stable, and the pressing force applied to the printing medium is more uniform.
The utility model discloses still relate to a printer, include a paper feed drive arrangement.
Drawings
Fig. 1 is a three-dimensional view of a paper feed driving device according to the present invention;
fig. 2 is a front view of a paper feeding driving device of the present invention;
fig. 3 is a sectional view of a paper feeding driving device of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
11. the device comprises a driving roller 12, a motor 2, a pressure roller 3, an adjusting mechanism 31, a lever mechanism 311, a supporting rod 312, a swinging arm 32, an adjusting driving mechanism 321, an electromagnet 322, a yoke iron 4 and a limiting mechanism.
Detailed Description
The principles and features of the present invention are described below, with the examples being given only for the purpose of illustration and not for the purpose of limiting the scope of the invention.
As shown in fig. 1, a paper feeding driving device includes a driving roller 11, a pinch roller 2 and an adjusting mechanism 3, where the driving roller 11 and the pinch roller 2 are parallel to each other and are correspondingly disposed on two sides of a printing medium, the adjusting mechanism 3 includes a lever mechanism 31 and an adjusting driving mechanism 32, the pinch roller 2 is rotatably connected to one end of the lever mechanism 31, and the adjusting driving mechanism 32 drives the other end of the lever mechanism 31 to move and enables the pinch roller 2 to approach or be away from the driving roller 11.
Specifically, the printing medium may be printing paper, or may be base paper in a thermal transfer printer, or may be another printing medium.
As a further scheme of this embodiment, the adjustment driving mechanism 32 includes an electromagnet 321, the lever mechanism 31 is made of ferromagnetic metal, and the electromagnet 321 drives the other end of the lever mechanism 31 to move through magnetic attraction.
As a further solution of this embodiment, the adjustment driving mechanism 32 further includes a yoke 322, and the yoke 322 is fixedly connected to a side of the electromagnet 321 close to the lever mechanism 31.
As a further scheme of this embodiment, the positioning device further includes a limiting mechanism 4, a spherical cavity is provided in the yoke 322, a cavity opening is provided on one side of the spherical cavity, one end of the limiting mechanism 4 penetrates into the spherical cavity, and the other end penetrates out of the cavity opening and is fixedly connected with the other end of the lever mechanism 31.
As a further scheme of this embodiment, the limiting mechanism 4 is a ball head screw, a ball head of the ball head screw penetrates into the spherical cavity, and a screw of the ball head screw is in threaded connection with the other end of the lever mechanism 31.
Specifically, the spherical cavity is slightly larger than the ball head, and the ball head can move and rotate in the ball head hole to adapt to the rotation of the lever mechanism 31.
As a further scheme of this embodiment, the lever mechanism 31 includes a supporting rod 311 and a swing arm 312, the supporting rod 311 is parallel to the pressing roller 2, a middle portion of the swing arm 312 is rotatably connected to the supporting rod 311, the pressing roller 2 is rotatably connected to one end of the swing arm 312, and the adjusting driving mechanism 32 drives the other end of the swing arm 312 to move and enables the swing arm 312 to rotate around the supporting rod 311.
Specifically, the pressure roller 2 is rotatably connected with the swing arm 312 through a bearing, the bearing is sleeved on the outer side of the pressure roller 2, a swing arm bearing hole is formed in the end portion of the swing arm 312, and the swing arm 312 is sleeved on the outer side of the bearing through the swing arm bearing hole.
Specifically, the device further comprises a bracket, the bracket is fixedly connected with the side wall of the adjusting driving mechanism 32, and the supporting rod 311 penetrates through the bracket and is fixedly connected with the bracket.
As a further scheme of this embodiment, the device further includes a motor 12, and an output shaft of the motor 12 is in transmission connection with the driving roller 11 and drives the driving roller 11 to axially rotate.
As a further scheme of this embodiment, there are two adjusting mechanisms 3, and two ends of the pressure roller 2 are respectively rotatably connected to one ends of the two lever mechanisms 31. The two adjusting driving mechanisms are respectively and correspondingly arranged at the other ends of the two lever mechanisms 31.
The utility model discloses still relate to a printer, include a paper feed drive arrangement still includes the frame. The adjusting driving mechanism 32 is fixedly connected with the frame through a bolt, and the driving roller 11 is rotatably connected with two opposite side walls of the frame through a bearing. The controller of the printer is electrically connected with a power supply, the controller is electrically connected with the electromagnet 321 and controls the connection or disconnection of the electromagnet 321, and the controller is electrically connected with the motor 12 and controls the connection or disconnection of the motor 12. The controller control electro-magnet 321 with the control method of motor 12 can adopt prior art to realize, and above-mentioned control method is not the utility model discloses the technical scheme who claims protects, for the expression is succinct, no longer gives unnecessary details here.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. 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 application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
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.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
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 (9)
1. The utility model provides a paper feed drive arrangement, characterized in that, includes drive roller (11), pinch roller (2) and adjustment mechanism (3), drive roller (11) with pinch roller (2) are parallel to each other and correspond the setting in the both sides of print media, adjustment mechanism (3) include lever mechanism (31) and regulation actuating mechanism (32), pinch roller (2) with the one end of lever mechanism (31) is rotated and is connected, it drives to adjust actuating mechanism (32) the other end of lever mechanism (31) removes and makes pinch roller (2) are close to or keep away from drive roller (11).
2. A paper feeding driving device according to claim 1, wherein the adjusting driving mechanism (32) comprises an electromagnet (321), the lever mechanism (31) is made of ferromagnetic metal, and the electromagnet (321) drives the other end of the lever mechanism (31) to move through magnetic attraction.
3. A paper advance drive as claimed in claim 2, wherein the adjustment drive (32) further comprises a yoke (322), the yoke (322) being fixedly attached to a side of the electromagnet (321) adjacent to the lever mechanism (31).
4. A paper feeding driving device according to claim 3, further comprising a limiting mechanism (4), wherein the yoke (322) has a spherical cavity therein, one side of the spherical cavity has a cavity opening, one end of the limiting mechanism (4) penetrates into the spherical cavity, and the other end of the limiting mechanism penetrates out of the cavity opening and is fixedly connected with the other end of the lever mechanism (31).
5. A paper feeding driving device according to claim 4, wherein the limiting mechanism (4) is a ball screw, a ball of the ball screw penetrates into the spherical cavity, and a screw of the ball screw is in threaded connection with the other end of the lever mechanism (31).
6. A paper feeding driving device according to any one of claims 1-5, wherein the lever mechanism (31) comprises a supporting rod (311) and a swing arm (312), the supporting rod (311) is parallel to the pressing roller (2), the middle part of the swing arm (312) is rotatably connected to the supporting rod (311), the pressing roller (2) is rotatably connected to one end of the swing arm (312), and the adjusting driving mechanism (32) drives the other end of the swing arm (312) to move and rotate the swing arm (312) around the supporting rod (311).
7. A paper advance drive according to any one of claims 1-5 and further comprising a motor (12), wherein an output shaft of the motor (12) is in transmission connection with the drive roller (11) and drives the drive roller (11) to rotate axially.
8. A drive unit as claimed in any one of claims 1-5, characterized in that said adjusting means (3) are two, and both ends of said pressure roller (2) are pivotally connected to one end of two said lever means (31), respectively.
9. A printer comprising a paper feed drive as claimed in any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921214321.6U CN210591063U (en) | 2019-07-30 | 2019-07-30 | Paper feeding driving device and printer comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921214321.6U CN210591063U (en) | 2019-07-30 | 2019-07-30 | Paper feeding driving device and printer comprising same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210591063U true CN210591063U (en) | 2020-05-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921214321.6U Active CN210591063U (en) | 2019-07-30 | 2019-07-30 | Paper feeding driving device and printer comprising same |
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| CN (1) | CN210591063U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110271306A (en) * | 2019-07-30 | 2019-09-24 | 湖南鼎一致远科技发展有限公司 | A kind of paper feed driving device and the printer comprising it |
-
2019
- 2019-07-30 CN CN201921214321.6U patent/CN210591063U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110271306A (en) * | 2019-07-30 | 2019-09-24 | 湖南鼎一致远科技发展有限公司 | A kind of paper feed driving device and the printer comprising it |
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