CN210591064U

CN210591064U - Paper feeding driving device and printer comprising same

Info

Publication number: CN210591064U
Application number: CN201921215434.8U
Authority: CN
Inventors: 唐国初; 卢刚
Original assignee: Hunan Dingyi Zhiyuan Technology Development Co Ltd
Current assignee: Hunan Dingyi Zhiyuan Technology Development Co Ltd
Priority date: 2019-07-30
Filing date: 2019-07-30
Publication date: 2020-05-22
Anticipated expiration: 2029-07-30

Abstract

The utility model relates to a paper feed drive arrangement and contain its printer, paper feed drive arrangement includes the frame, the paper feed drive roller, pinch roller and adjustment mechanism, the both ends of paper feed drive roller are rotated with the frame and are connected, adjustment mechanism includes moving mechanism, pressure spring and slider, the pinch roller rotates with the slider to be connected and with paper feed drive roller parallel arrangement, moving mechanism installs in the frame, the both ends of pressure spring respectively with moving mechanism and slider butt or fixed connection, the frame has first spout, the slider sets up in first spout and can follow the spout and slide, the slider is close to or keeps away from the paper feed drive roller under moving mechanism's effect. The utility model has the advantages that: the utility model discloses a paper feed drive arrangement can adjust the space of pinch roller and paper feed drive roller in a flexible way through moving mechanism in order to adapt to the print media of different thickness, and the phenomenon of card paper can be avoided producing by the pressure spring in the paper feed process to make the pinch roller compress tightly the paper feed drive roller all the time.

Description

Paper feeding driving device and printer comprising same

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 frame, paper feed drive roller, pinch roller and adjustment mechanism, the both ends of paper feed drive roller with the frame rotates to be connected, adjustment mechanism includes moving mechanism, pressure spring and slider, the pinch roller with the slider rotate to be connected and with paper feed drive roller parallel arrangement, moving mechanism installs in the frame, the both ends of pressure spring respectively with moving mechanism with slider butt or fixed connection, the frame has first spout, the slider set up in can follow in the first spout the spout slides, the slider is in be close to or keep away from under moving mechanism's the effect paper feed drive roller.

The utility model has the advantages that: the moving mechanism pushes the sliding block to move and enable the pressing roller to be close to the paper feeding driving roller, the printing medium is clamped between the paper feeding driving roller and the pressing roller, the paper feeding driving roller rotates and drives the printing medium to move by means of friction, the pressing roller presses the printing medium and rotates along with the movement of the printing medium, a pressure spring is arranged between the moving mechanism and the sliding block, when the printing medium generates wrinkles or is uneven due to other reasons, the thickness of the printing medium changes and pushes the pressing roller to be far away from the paper feeding driving roller, the pressure spring is compressed at the moment and can be used for the printing medium to pass through smoothly, and meanwhile, the printing medium can be pressed tightly. The utility model discloses a paper feed drive arrangement can adjust the space of pinch roller and paper feed drive roller in a flexible way through moving mechanism in order to adapt to the print media of different thickness, and the phenomenon of card paper can be avoided producing by the pressure spring in the paper feed process to make the pinch roller compress tightly the paper feed drive roller all the time.

On the basis of the technical scheme, the utility model discloses can also do following improvement.

Further, the moving mechanism comprises a first motor, a screw rod and a moving block, the first motor is fixedly connected with the rack, the rack is provided with a second sliding groove, the moving block is arranged in the second sliding groove in a sliding mode, an output shaft of the first motor is in transmission connection with one end of the screw rod, the screw rod is in threaded connection with the moving block, the first motor drives the screw rod to rotate and drives the moving block to slide in the second sliding groove, and the moving block is abutted to or fixedly connected with one end of the pressure spring.

The beneficial effect of adopting the further scheme is that: the first motor drives the screw rod to rotate, the screw rod drives the moving block to move, and the moving block further enables the sliding block to move through the pressure spring, so that the adjustment of the distance between the compression roller and the paper feeding driving roller is achieved. Through screw rod and movable block threaded connection, can adjust the distance that the movable block removed through the number of turns of rotation and pitch accuracy of screw rod, adjust the precision height, simple structure, the reliability is high.

The sliding block is fixedly connected with the sliding block, the limiting plate is provided with a strip-shaped hole, one end of the limiting pin is fixedly connected with the moving block, and the other end of the limiting pin is arranged in the strip-shaped hole in a sliding mode.

The beneficial effect of adopting the further scheme is that: the spacing between the sliding block and the moving block is limited by the limiting plate and the limiting pin, so that the separation of the pressure spring is avoided, and meanwhile, the guide in the relative sliding process of the sliding block and the moving block can be realized.

Furthermore, the moving mechanism further comprises a connecting block, one end of the connecting block is fixedly connected with the moving block, the other end of the connecting block is provided with a pressure spring hole, and one end of the pressure spring abuts against the pressure spring hole.

The beneficial effect of adopting the further scheme is that: the compression spring hole in the connecting block realizes the positioning of the compression spring, avoids the dislocation of the compression spring, and has simple and convenient installation and reliable connection.

Furthermore, one end of the sliding block, facing the connecting block, is provided with a second pressure spring hole matched with the connecting block, the other end of the pressure spring abuts against the inside of the second pressure spring hole, and the other end of the connecting block slides in the second pressure spring hole.

The beneficial effect of adopting the further scheme is that: the other end of the connecting block is arranged in the second pressure spring hole, the pressure spring is limited in the pressure spring hole and the second pressure spring hole, and meanwhile, the other end of the connecting block and the second pressure spring hole can also realize guiding in the moving process.

Further, still include screw rod bearing frame and screw rod bearing, the screw rod bearing housing is established in the screw rod bearing frame, the screw rod bearing housing is established the outside of screw rod, screw rod bearing frame 7 with frame fixed connection.

The beneficial effect of adopting the further scheme is that: the screw bearing seat and the screw bearing support the screw, so that the strength of the screw is ensured, and the deformation caused by uneven stress of the screw is avoided.

Further, the screw rod bearing blocks and the screw rod bearings are arranged in a one-to-one correspondence mode, the two screw rod bearings are respectively sleeved at two ends of the screw rod, the moving block faces one side of the rack and is provided with a containing groove, the other end of the screw rod penetrates through the side wall of the containing groove, the middle of the screw rod is in threaded connection with the side wall of the containing groove, and one of the screw rod bearing blocks is contained in the containing groove.

The beneficial effect of adopting the further scheme is that: realize that the movable block is spacing, one of them screw rod bearing frame is in the holding tank simultaneously, and the screw rod is more stable in the motion process, and overall structure is compact, has reduced paper feed drive arrangement's volume.

Furthermore, the number of the adjusting mechanisms is two, and the two adjusting mechanisms are respectively installed at two ends of the pressing roller.

The beneficial effect of adopting the further scheme is that: and the two ends of the pressing roller are provided with the adjusting mechanisms, so that the pressing roller is stable in movement and uniform in stress.

Further, still include the second motor, the second motor with frame fixed connection, the output shaft of second motor with paper feed drive roller fixed connection drives the paper feed drive roller rotates.

The utility model discloses still relate to a printer, include 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 sectional view of a paper feed driving device according to the present invention;

fig. 3 is a front sectional view of an adjusting mechanism of a paper feeding driving device according to the present invention;

fig. 4 is a top view of a paper feeding driving device according to the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. the paper feeding device comprises a rack, 11, a first sliding groove, 12, a second sliding groove, 2, a paper feeding driving roller, 3, a pressing roller, 4, an adjusting mechanism, 41, a moving mechanism, 411, a first motor, 412, a screw rod, 413, a moving block, 414, a connecting block, 42, a pressure spring, 43, a sliding block, 5, a limiting plate, 6, a limiting pin, 7, a screw bearing seat, 8, a screw bearing, 9 and a second motor.

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. 1-4, the utility model relates to a paper feeding driving device, including frame 1, paper feeding drive roller 2, pinch roller 3 and adjustment mechanism 4, the both ends of paper feeding drive roller 2 with frame 1 rotates and connects, adjustment mechanism 4 includes moving mechanism 41, pressure spring 42 and slider 43, pinch roller 3 with slider 43 rotates and connects and with paper feeding drive roller 2 parallel arrangement, moving mechanism 41 installs in frame 1, the both ends of pressure spring 42 respectively with moving mechanism 41 with slider 43 butt or fixed connection, frame 1 has first spout 11, slider 43 set up in first spout 11 and can follow spout 11 slides, the slider 43 is in the effect of moving mechanism 41 is close to or is kept away from paper feeding drive roller 2.

Specifically, the paper feeding driving roller 2 is in transmission connection with a motor of a printer through a transmission mechanism and is driven by the motor of the printer to rotate; or, the paper feeding device also comprises a second motor 9, and the second motor 9 directly drives the paper feeding driving roller 2 to rotate.

Specifically, the both ends of paper advance drive roller 2 are equipped with driving roller bearing respectively in the cover, paper advance drive roller 2 passes through driving roller bearing with frame 1 rotates to be connected.

As a further scheme of this embodiment, the moving mechanism 41 includes a first motor 411, a screw 412 and a moving block 413, the first motor 411 is fixedly connected to the frame 1, the frame 1 has a second sliding groove 12, the moving block 413 is slidably disposed in the second sliding groove 12, an output shaft of the first motor 411 is in transmission connection with one end of the screw 412, the screw 412 is in threaded connection with the moving block 413, the first motor 411 drives the screw 412 to rotate and drives the moving block 413 to slide in the second sliding groove 12, and the moving block 413 abuts against or is fixedly connected to one end of the compressed spring 42.

Specifically, the moving mechanism 41 may be configured by a hydraulic cylinder and a moving block 413, an output end of the hydraulic cylinder may be fixedly connected to the moving block 413, and the moving block 413 may be in contact with or fixedly connected to one end of the compression spring 42.

Specifically, the first chute 11 and the second chute 12 are communicated.

Specifically, the first motor 411 is connected to one end of the screw 412 through a coupling.

As a further scheme of this embodiment, as shown in fig. 1 and fig. 2, the sliding type elevator further includes a limiting plate 5 and a limiting pin 6, one end of the limiting plate 5 is fixedly connected to the slider 43, the limiting plate 5 has a strip-shaped hole, one end of the limiting pin 6 is fixedly connected to the moving block 413, and the other end of the limiting pin is slidably disposed in the strip-shaped hole.

As a further aspect of the present embodiment, the moving mechanism 41 further includes a connecting block 414, one end of the connecting block 414 is fixedly connected to the moving block 413, the other end of the connecting block 414 has a compression spring hole, and one end of the compression spring 42 abuts against the compression spring hole.

As a further solution of this embodiment, one end of the slider 43 facing the connecting block 414 has a second pressure spring hole adapted to the connecting block 414, the other end of the pressure spring 42 abuts against the second pressure spring hole, and the other end of the connecting block 414 slides in the second pressure spring hole.

As the further scheme of this embodiment, still include screw rod bearing frame 7 and screw rod bearing 8, screw rod bearing 8 cover is established in screw rod bearing frame 7, screw rod bearing 8 cover is established the outside of screw rod 412, screw rod bearing frame 7 with frame 1 fixed connection.

As a further scheme of this embodiment, the screw bearing seats 7 and the screw bearings 8 are both provided in a one-to-one correspondence, the two screw bearings 8 are respectively sleeved at two ends of the screw 412, one side of the moving block 413 facing the rack 1 has an accommodating groove, the other end of the screw 412 passes through a side wall of the accommodating groove, the middle part of the screw 412 is in threaded connection with the side wall of the accommodating groove, and one of the screw bearing seats 7 is accommodated in the accommodating groove.

As a further scheme of this embodiment, there are two adjusting mechanisms 4, and the two adjusting mechanisms 4 are respectively installed at two ends of the pressure roller 3.

Specifically, the number of the limiting plates 5 and the number of the limiting pins 6 are two, the limiting plates 5 correspond to the adjusting mechanisms 4 one to one, and the limiting pins 6 correspond to the adjusting mechanisms 4 one to one. The number of the screw bearing seats 7 is four, the number of the screw bearings 8 is four, and each screw 412 is correspondingly provided with two screw bearing seats 7 and two screw bearings 8.

As a further scheme of this embodiment, the paper feeding device further includes a second motor 9, the second motor 9 is fixedly connected to the frame 1, and an output shaft of the second motor 9 is fixedly connected to the paper feeding driving roller 2 and drives the paper feeding driving roller 2 to rotate.

Specifically, the output shaft of the second motor 9 is in transmission connection with the paper feeding driving roller 2 through a speed reducer. Specifically, the output shaft of the second motor 9 is fixedly connected with the input end of the speed reducer, and the output end of the speed reducer is fixedly connected with the paper feeding driving roller 2.

A printer includes the paper feed driving device. The first motor 411 and the second motor 9 are both electrically connected to a controller of the printer. The printer further comprises a printing assembly and a printing medium reel, one end of the printing medium is wound on the printing medium reel, the other end of the printing medium passes through the printing assembly and then is clamped between the paper feeding driving roller 2 and the pressing roller 3, the printing assembly is used for printing, and the paper feeding driving roller 2 drives the printing medium to move through friction force.

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

1. The paper feeding driving device is characterized by comprising a rack (1), a paper feeding driving roller (2), a pressing roller (3) and an adjusting mechanism (4), wherein two ends of the paper feeding driving roller (2) are rotatably connected with the rack (1), the adjusting mechanism (4) comprises a moving mechanism (41), a pressure spring (42) and a sliding block (43), the pressing roller (3) is rotatably connected with the sliding block (43) and is arranged in parallel with the paper feeding driving roller (2), the moving mechanism (41) is installed on the rack (1), two ends of the pressure spring (42) are respectively abutted against or fixedly connected with the moving mechanism (41) and the sliding block (43), the rack (1) is provided with a first sliding groove (11), the sliding block (43) is arranged in the first sliding groove (11) and can slide along the sliding groove (11), and the sliding block (43) is close to or far away from the paper feeding driving roller (2) under the action of the moving mechanism (41) .

2. The paper feeding driving device according to claim 1, wherein the moving mechanism (41) includes a first motor (411), a screw (412) and a moving block (413), the first motor (411) is fixedly connected to the frame (1), the frame (1) has a second sliding slot (12), the moving block (413) is slidably disposed in the second sliding slot (12), an output shaft of the first motor (411) is in transmission connection with one end of the screw (412), the screw (412) is in threaded connection with the moving block (413), the first motor (411) drives the screw (412) to rotate and drives the moving block (413) to slide in the second sliding slot (12), and the moving block (413) abuts against or is fixedly connected to one end of the compression spring (42).

3. The paper feeding driving device according to claim 2, further comprising a limiting plate (5) and a limiting pin (6), wherein one end of the limiting plate (5) is fixedly connected with the sliding block (43), the limiting plate (5) is provided with a strip-shaped hole, one end of the limiting pin (6) is fixedly connected with the moving block (413), and the other end of the limiting pin is slidably arranged in the strip-shaped hole.

4. A paper feeding driving device according to claim 2, wherein the moving mechanism (41) further comprises a connecting block (414), one end of the connecting block (414) is fixedly connected with the moving block (413), the other end of the connecting block (414) is provided with a pressure spring hole, and one end of the pressure spring (42) abuts against the pressure spring hole.

5. A paper feeding driving device according to claim 4, wherein one end of the sliding block (43) facing the connecting block (414) is provided with a second pressure spring hole matched with the connecting block (414), the other end of the pressure spring (42) abuts in the second pressure spring hole, and the other end of the connecting block (414) slides in the second pressure spring hole.

6. The paper feeding driving device according to claim 2, further comprising a screw bearing seat (7) and a screw bearing (8), wherein the screw bearing (8) is sleeved in the screw bearing seat (7), the screw bearing (8) is sleeved outside the screw (412), and the screw bearing seat (7) is fixedly connected with the frame (1).

7. The paper feeding driving device according to claim 6, wherein the screw bearing seats (7) and the screw bearings (8) are provided in two and one-to-one correspondence, the two screw bearings (8) are respectively sleeved at two ends of the screw (412), the moving block (413) has a receiving groove at one side facing the frame (1), the other end of the screw (412) passes through a side wall of the receiving groove, the middle part of the screw (412) is in threaded connection with the side wall of the receiving groove, and one of the screw bearing seats (7) is received in the receiving groove.

8. A drive arrangement according to any one of claims 1-7, wherein there are two adjustment mechanisms (4), and wherein two adjustment mechanisms (4) are mounted at each end of the pressure roller (3).

9. A paper advance drive device according to any one of claims 1-7, further comprising a second motor (9), wherein the second motor (9) is fixedly connected to the frame (1), and an output shaft of the second motor (9) is fixedly connected to the paper advance drive roller (2) and drives the paper advance drive roller (2) to rotate.

10. A printer comprising a paper feed drive as claimed in any one of claims 1 to 9.