CN215153149U

CN215153149U - Pinch roller mechanism with pressure regulation function and printer

Info

Publication number: CN215153149U
Application number: CN202121453623.6U
Authority: CN
Inventors: 高卫民; 谭佳武; 唐国初
Original assignee: Hunan Dingyi Zhiyuan Technology Development Co Ltd
Current assignee: Hunan Dingyi Zhiyuan Technology Development Co Ltd
Priority date: 2021-06-29
Filing date: 2021-06-29
Publication date: 2021-12-14
Anticipated expiration: 2031-06-29

Abstract

The utility model relates to a pinch roller mechanism and printer with regulated pressure belongs to printer technical field. This pinch roller mechanism includes: the pressing wheel set comprises a first pressing wheel and a second pressing wheel, a first rotating hole is formed in the axis of the first pressing wheel, and a second rotating hole is formed in the axis of the second pressing wheel; the first pressing wheel is rotatably sleeved on the supporting shaft through the first rotating hole, and the inner ring wall of the first rotating hole and the outer ring wall of the supporting shaft are arranged in a clearance mode; the second pinch roller is rotatably sleeved on the support shaft through the second rotary hole, and the inner annular wall of the second rotary hole is abutted to the outer annular wall of the support shaft; and the adjusting part is used for driving the supporting shaft to move up and down, and the output end of the adjusting part is in transmission connection with the supporting shaft. The pinch roller mechanism can adjust the conveying pressure according to the required functions, and is suitable for conveying different media.

Description

Pinch roller mechanism with pressure regulation function and printer

Technical Field

The utility model belongs to the technical field of the printer, concretely relates to pinch roller mechanism and printer with regulated pressure.

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. Thermal transfer printers need to continuously transport media to print media.

In the prior art, two groups of rollers are mainly used for clamping a medium to convey, the two groups of rollers generate the same pressure, different conveying forces cannot be generated according to different media for conveying the medium, and when die cutting operation is performed, the conveying forces to the medium are insufficient, so that the die cutting operation is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve above-mentioned technical problem and provide a pinch roller mechanism and printer with regulated pressure, can be according to the function adjustment conveying pressure that needs, adapt to the transport of different media.

The utility model provides an above-mentioned technical problem's technical scheme as follows: a pinch roller mechanism with regulated pressure, comprising:

the pressing wheel set comprises a first pressing wheel and a second pressing wheel, a first rotating hole is formed in the axis of the first pressing wheel, and a second rotating hole is formed in the axis of the second pressing wheel;

the first pressing wheel is rotatably sleeved on the supporting shaft through the first rotating hole, and the inner ring wall of the first rotating hole and the outer ring wall of the supporting shaft are arranged in a clearance mode; the second pinch roller is rotatably sleeved on the support shaft through the second rotary hole, and the inner annular wall of the second rotary hole is abutted to the outer annular wall of the support shaft;

and the adjusting part is used for driving the supporting shaft to move up and down, and the output end of the adjusting part is in transmission connection with the supporting shaft.

The utility model has the advantages that: (1) the requirements on the conveying pressure of different media can be met through the matching of the first pressing wheel and the second pressing wheel, the conveying of the media is guaranteed, when paper or a film needs to be conveyed, the second pressing wheel is lifted, the first pressing wheel is enabled to be connected with the paper or the film, when a die-cutting medium needs to be conveyed, the second pressing wheel is pressed downwards, and the die-cutting medium is simultaneously pressed by the second pressing wheel and the first pressing wheel for conveying;

(2) the pressing wheel mechanism can conveniently adjust the conveying pressure of the medium, is very convenient to operate, and can improve the conveying stability of the medium.

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

Furthermore, the number of the first pressing wheels is two, and the second pressing wheel is located between the two first pressing wheels.

The beneficial effect of adopting the further scheme is that: the conveyance stability of the medium can be improved.

Further, the adjustment part includes drive division, rotates the piece and connects the locating part, drive division's output with rotate the piece and connect, through drive division drives rotate the piece and rotate, the one end of connecting the locating part with rotate the piece and connect, the other end with the back shaft is connected.

The beneficial effect of adopting the further scheme is that: can conveniently drive the back shaft and reciprocate.

Furthermore, the other end of connecting the locating part is equipped with two and connects the stabilizer blade, two connect the stabilizer blade respectively with the backing shaft is connected, the second pinch roller and two first pinch roller is located two connect between the stabilizer blade.

The beneficial effect of adopting the further scheme is that: the convenience is connected with the back shaft, does not influence the rotation of first pinch roller and second pinch roller simultaneously.

Further, the rotation piece includes transmission arm and regulating spindle, the one end of connecting the locating part with the regulating spindle is connected, the one end of transmission arm with the regulating spindle is connected, the other end with the output transmission of driver part is connected, driver part passes through the transmission arm drives the regulating spindle rotates.

The beneficial effect of adopting the further scheme is that: do benefit to and drive the regulating spindle and rotate for the back shaft rotates around the axis of regulating spindle, realizes reciprocating.

Further, the driving part comprises an adjusting motor, an eccentric wheel and a rotating wheel, the eccentric wheel is eccentrically connected with the output end of the adjusting motor, the eccentric wheel is driven to eccentrically rotate by the adjusting motor, the rotating wheel is rotatably connected to the other end of the transmission arm, and the outer ring wall of the rotating wheel is abutted to the outer ring wall of the eccentric wheel.

The beneficial effect of adopting the further scheme is that: the driving arm is driven to rotate.

Further, the output of adjustment motor with still be equipped with spacing dish and spacing seat between the eccentric wheel, the axle center of spacing dish with the output of adjustment motor is connected, the adjustment motor drives spacing dish rotates, spacing seat is located the vertical below of spacing dish, be equipped with the spacing groove on the spacing seat, spacing dish is located the spacing inslot.

The beneficial effect of adopting the further scheme is that: the rotation direction of the eccentric wheel can be ensured.

Further, still include conveying assembly, conveying assembly's output with first pinch roller or with first pinch roller with the second pinch roller butt.

The beneficial effect of adopting the further scheme is that: the conveying of the medium can be conveniently realized.

Further, the conveying assembly comprises a conveying wheel, a conveying shaft, a conveying motor and a conveying transmission mechanism, the conveying motor is used for driving the conveying wheel to rotate, the output end of the conveying motor is in transmission connection with one end of the conveying transmission mechanism, the other end of the conveying transmission mechanism is in transmission connection with the conveying shaft, the conveying wheel is fixedly sleeved on the conveying shaft, the conveying wheel and the conveying shaft rotate coaxially, and the conveying wheel is abutted against the first pinch roller or the first pinch roller and the second pinch roller.

The beneficial effect of adopting the further scheme is that: the conveying wheel is driven to rotate.

The utility model also provides a printer, include as foretell pinch roller mechanism that has regulated pressure.

Drawings

Fig. 1 is a schematic perspective view of a pinch roller mechanism of the present invention;

FIG. 2 is a front view of the pinch roller mechanism of the present invention;

FIG. 3 is a right side view of the adjustment member of the present invention;

fig. 4 is a schematic perspective view of the driving member of the present invention;

FIG. 5 is a schematic view of the connection between the supporting shaft and the pressing wheel set of the present invention;

FIG. 6 is a schematic view showing the connection relationship between the support shaft and the second pressing wheel;

fig. 7 is a schematic view of the connection relationship between the support shaft and the first pressing wheel of the present invention.

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

1. a delivery wheel; 2. a delivery shaft; 3. a conveying motor; 4. a conveying transmission mechanism; 5. a support shaft; 6. a first pinch roller; 7. a second pinch roller; 8. an adjustment shaft; 9. connecting a limiting part; 10. a drive arm; 11. a rotating wheel; 12. an eccentric wheel; 13. a limiting disc; 14. a limiting seat; 15. and adjusting the motor.

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 to 7, the present embodiment provides a pressure wheel mechanism with regulated pressure, including: the pressing wheel group, the supporting shaft 5 and an adjusting part for driving the supporting shaft 5 to move up and down.

The pinch roller set comprises a first pinch roller 6 and a second pinch roller 7, a first rotary hole is formed in the axis of the first pinch roller 6, and a second rotary hole is formed in the axis of the second pinch roller 7. The first pinch roller 6 is rotatably sleeved on the support shaft 5 through a first rotary hole, and the inner annular wall of the first rotary hole and the outer annular wall of the support shaft 5 are arranged in a clearance mode. The second pinch roller 7 is rotatably sleeved on the support shaft 5 through a second rotary hole, and the inner annular wall of the second rotary hole is abutted to the outer annular wall of the support shaft 5. The output end of the adjusting component is in transmission connection with the supporting shaft 5.

The pressing wheel set is used for pressing the medium, so that the medium keeps moving along with the pressing wheel set, and the medium is conveyed. The outer diameter of the first pinch roller 6 is slightly larger than that of the second pinch roller 7, the first pinch roller 6 is firstly contacted with a medium, and when the pressure needs to be increased, the second pressure is contacted with the medium.

Wherein, first pinch roller 6 can rotate on back shaft 5 through first commentaries on classics hole, and second pinch roller 7 can rotate on back shaft 5 through the second commentaries on classics hole to when the medium was carried, rotation can be followed to first pinch roller 6 and second pinch roller 7, keeps the application of pressure to the medium, guarantees the transport of medium.

Wherein, the clearance setting of the inner ring wall in first commentaries on classics hole and the outer annular wall of back shaft 5 for when back shaft 5 reciprocated under the effect of regulating part, can not change the position of first pinch roller 6, make first pinch roller 6 keep the contact with the medium under the effect of self dead weight.

Wherein, the inner ring wall in second commentaries on classics hole and the outer annular wall butt of back shaft 5 for second pinch roller 7 can rotate 5 rotations of back shaft relatively, and when back shaft 5 reciprocated, second pinch roller 7 followed back shaft 5 and reciprocated simultaneously, thereby changed the contact pressure of second pinch roller 7 and medium, thereby realized adjusting pressure. When needs pressure regulation, can adjust the degree that reciprocates of back shaft 5 through adjusting part for change the degree of contact of second pinch roller 7 with the medium, first pinch roller 6 can guarantee the contact to the medium simultaneously, when only needing first pinch roller 6 to act on, can directly lift second pinch roller 7 can.

The effect of the technical scheme of this embodiment is, can realize the demand to the delivery pressure of different media respectively through the cooperation of the first pinch roller 6 that sets up and second pinch roller 7, guarantee the transport to the medium, when paper or film are carried to needs, lift second pinch roller 7 for first pinch roller 6 and paper or film, when the cross cutting medium is carried to needs, push down second pinch roller 7, make second pinch roller 7 and first pinch roller 6 exert pressure to the cross cutting medium simultaneously, carry. The pressing wheel mechanism can conveniently adjust the conveying pressure of the medium, is very convenient to operate, and can improve the conveying stability of the medium.

Preferably, in this embodiment, there are two first rollers 6, and the second roller 7 is located between the two first rollers 6. The two first pinch rollers 6 are good in balance, and the conveying stability of the medium can be improved.

Preferably, in this embodiment, the pressing wheel sets can be a plurality of sets, and are uniformly distributed on the supporting shaft 5 at intervals, so as to better contact with the medium. In this embodiment, the number of the pressing wheel sets is 4.

Preferably, in this embodiment, the adjusting part includes a driving part, a rotating part and a connection limiting part 9, an output end of the driving part is connected to the rotating part, the driving part drives the rotating part to rotate, one end of the connection limiting part 9 is connected to the rotating part, and the other end is connected to the supporting shaft 5.

Wherein, the driver part is used for driving and rotates a piece and rotates, and connects locating part 9 and be used for linking into an integrated entity rotating piece and back shaft 5 for back shaft 5 rotates along with rotating a piece, when back shaft 5 rotated, can realize reciprocating.

Wherein, in this embodiment, connect locating part 9 quantity and be a plurality of to correspond with the quantity of pinch roller group, can also carry on spacingly to pinch roller group through connecting locating part 9, make pinch roller group keep rotating on back shaft 5, position change can not appear. In this embodiment, the number of the connection limiting members 9 is 4, and the connection limiting members are arranged in parallel.

Preferably, in this embodiment, the other end of the connection limiting member 9 is provided with two connection legs, the two connection legs are respectively connected with the support shaft 5, and the second pressing wheel 7 and the two first pressing wheels 6 are located between the two connection legs.

Wherein, the two connecting feet have a space for the rotation of the second pressing wheel 7 and the first pressing wheel 6, thereby not influencing the rotation of the second pressing wheel 7 and the first pressing wheel 6. Wherein, the supporting shaft 5 passes through the two connecting legs and is fixedly connected, so that the supporting shaft 5 can move along with the connecting limiting member 9.

Preferably, in this embodiment, the rotating member includes a transmission arm 10 and an adjusting shaft 8, one end of the connection limiting member 9 is connected to the adjusting shaft 8, one end of the transmission arm 10 is connected to the adjusting shaft 8, the other end of the transmission arm is connected to the output end of the driving member in a transmission manner, and the driving member drives the adjusting shaft 8 to rotate through the transmission arm 10.

Wherein, regulating spindle 8 and back shaft 5 parallel arrangement, the one end of transmission arm 10 and the one end fixed connection of regulating spindle 8, when transmission arm 10 rotated around the axis of regulating spindle 8, regulating spindle 8 followed the rotation.

Wherein, connect locating part 9 and be located between regulating spindle 8 and the back shaft 5, the one end of connecting locating part 9 and the lateral wall fixed connection of regulating spindle 8 for back shaft 5 can follow regulating spindle 8, rotates around the axis of regulating spindle 8.

Preferably, in this embodiment, the driving member includes an adjusting motor 15, an eccentric wheel 12 and a rotating wheel 11, the eccentric wheel 12 is eccentrically connected to an output end of the adjusting motor 15, the eccentric wheel 12 is eccentrically rotated by the adjusting motor 15, the rotating wheel 11 is rotatably connected to the other end of the driving arm 10, and an outer circumferential wall of the rotating wheel 11 abuts against an outer circumferential wall of the eccentric wheel 12.

Wherein, runner 11 rotates at the other end of transmission arm 10, and when eccentric wheel 12 rotated the distal end, eccentric wheel 12 promoted runner 11 and outwards removed, and transmission arm 10 can rotate around the axis of adjusting spindle 8 this moment for adjusting spindle 8 follows the rotation, and when eccentric wheel 12 rotated simultaneously, runner 11 followed the rotation, can not influence the rotation of eccentric wheel 12. When the eccentric wheel 12 rotates to the near end, the rotating wheel 11 moves back, so that the transmission arm 10 and the adjusting shaft 8 rotate reversely, and the supporting shaft 5 is driven to move up and down. The adjustment motor 15 is a servo motor.

Preferably, in this embodiment, a limiting disc 13 and a limiting seat 14 are further disposed between the output end of the adjusting motor 15 and the eccentric wheel 12, the axis of the limiting disc 13 is connected to the output end of the adjusting motor 15, the adjusting motor 15 drives the limiting disc 13 to rotate, the limiting seat 14 is located vertically below the limiting disc 13, a limiting groove is disposed on the limiting seat 14, and the limiting disc 13 is located in the limiting groove.

When the adjusting motor 15 drives the eccentric wheel 12 to rotate, the limiting disc 13 rotates along with the eccentric wheel, and the outer edge of the limiting disc 13 can rotate in the limiting groove, so that the rotation stability is guaranteed. In this embodiment, the limiting disc 13 is a semicircular disc, and in this embodiment, the rotation range of the eccentric wheel 12 is small, and the semicircular disc can achieve the limiting effect.

Wherein, the adjusting motor 15 is a servo motor, which can conveniently drive the eccentric wheel 12 to rotate.

Preferably, in this embodiment, the device further comprises a conveying assembly, and an output end of the conveying assembly abuts against the first pressing wheel 6 or the first pressing wheel 6 and the second pressing wheel 7.

Wherein the conveying assembly is used for generating conveying force to the medium. In this embodiment, when a paper or film medium is conveyed, the conveying clamping force for the medium is small, and at this time, the output end of the conveying assembly abuts against the first pressing wheel 6. When the die cutting medium needs to be conveyed, the conveying clamping force on the medium is large, and at the moment, the output end of the conveying assembly is simultaneously abutted to the first pressing wheel 6 and the second pressing wheel 7.

Preferably, in this embodiment, conveying assembly includes delivery wheel 1, carry axle 2, be used for driving delivery wheel 1 pivoted conveying motor 3 and carry drive mechanism 4, conveying motor 3's output and the one end transmission of carrying drive mechanism 4 are connected, carry drive mechanism 4's the other end and carry axle 2 transmission to be connected, delivery wheel 1 fixed cover is established on carrying axle 2, delivery wheel 1 with carry axle 2 coaxial rotation, delivery wheel 1 with first pinch roller 6 or with first pinch roller 6 and second pinch roller 7 butt.

Wherein, carry axle 2 and back shaft 5 parallel arrangement for carry wheel 1 and the position of first pinch roller 6 and second pinch roller 7 to correspond, carry wheel 1 to be a plurality of, quantity and position correspond with first pinch roller 6 and second pinch roller 7, and in this embodiment, carry wheel 1 to be 4.

Wherein, the conveying wheel 1 rotates along with the conveying shaft 2, and the conveying wheel 1 and the conveying shaft 2 rotate coaxially. Wherein, conveying motor 3 drives through carrying drive mechanism 4 and carries axle 2 to rotate, realizes the transport to the medium. The conveying transmission mechanism 4 is a belt and turntable transmission mechanism, and is not described in detail herein for the prior art.

Preferably, in this embodiment, a return spring may be further disposed on the supporting shaft 5, and the supporting shaft 5 can be kept moving downward by the disposed return spring, so that the first pressing wheel 6 and the second pressing wheel 7 are abutted to the conveying wheel 1 at the same time, when the eccentric wheel 12 rotates to a far end to contact with the rotating wheel 11, the driving arm 10 can overcome the action of the return spring, so as to achieve upward movement of the supporting shaft 5, and when the eccentric wheel 12 rotates to a near end to contact with the rotating wheel 11, the return spring can drive the supporting shaft 5 to move downward.

The embodiment also provides a printer which comprises the pressure wheel mechanism with the pressure adjusting function.

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

1. A pinch roller mechanism with regulated pressure, comprising:

the pressing wheel set comprises a first pressing wheel (6) and a second pressing wheel (7), a first rotating hole is formed in the axis of the first pressing wheel (6), and a second rotating hole is formed in the axis of the second pressing wheel (7);

the first pressing wheel (6) is rotatably sleeved on the supporting shaft (5) through the first rotating hole, and the inner ring wall of the first rotating hole and the outer ring wall of the supporting shaft (5) are arranged in a clearance mode; the second pressing wheel (7) is rotatably sleeved on the supporting shaft (5) through the second rotary hole, and the inner annular wall of the second rotary hole is abutted to the outer annular wall of the supporting shaft (5);

and the adjusting part is used for driving the supporting shaft (5) to move up and down, and the output end of the adjusting part is in transmission connection with the supporting shaft (5).

2. Pressure roller mechanism with regulated pressure according to claim 1, characterized in that the number of the first pressure rollers (6) is two and the second pressure roller (7) is located between the two first pressure rollers (6).

3. The pressure wheel mechanism with pressure regulation according to claim 2, characterized in that the regulating component comprises a driving component, a rotating component and a connection limiting component (9), the output end of the driving component is connected with the rotating component, the rotating component is driven by the driving component to rotate, one end of the connection limiting component (9) is connected with the rotating component, and the other end is connected with the supporting shaft (5).

4. A pressure roller mechanism with pressure regulation according to claim 3, characterized in that the other end of the connection limiting member (9) is provided with two connecting legs, the two connecting legs are respectively connected with the supporting shaft (5), and the second pressure roller (7) and the two first pressure rollers (6) are located between the two connecting legs.

5. The pressure-regulating pinch roller mechanism according to claim 3, characterized in that the rotating member comprises a transmission arm (10) and a regulating shaft (8), one end of the connection limiting member (9) is connected with the regulating shaft (8), one end of the transmission arm (10) is connected with the regulating shaft (8), the other end of the transmission arm is in transmission connection with the output end of the driving member, and the driving member drives the regulating shaft (8) to rotate through the transmission arm (10).

6. A pressure regulating roller mechanism according to claim 5, characterized in that the driving member comprises an adjusting motor (15), an eccentric wheel (12) and a rotating wheel (11), the eccentric wheel (12) is eccentrically connected with the output end of the adjusting motor (15), the eccentric wheel (12) is eccentrically rotated by the adjusting motor (15), the rotating wheel (11) is rotatably connected with the other end of the transmission arm (10), and the outer ring wall of the rotating wheel (11) is abutted with the outer ring wall of the eccentric wheel (12).

7. The pinch roller mechanism with pressure regulation according to claim 6, characterized in that a limiting disc (13) and a limiting seat (14) are further arranged between the output end of the adjustment motor (15) and the eccentric wheel (12), the axis of the limiting disc (13) is connected with the output end of the adjustment motor (15), the adjustment motor (15) drives the limiting disc (13) to rotate, the limiting seat (14) is located vertically below the limiting disc (13), a limiting groove is arranged on the limiting seat (14), and the limiting disc (13) is located in the limiting groove.

8. Pressure roller mechanism with regulated pressure according to any of claims 1-7, characterized by further comprising a transport assembly, the output end of which abuts the first pressure roller (6) or the first pressure roller (6) and the second pressure roller (7).

9. The pinch roller mechanism with pressure regulation according to claim 8, characterized in that the conveying assembly comprises a conveying wheel (1), a conveying shaft (2), a conveying motor (3) for driving the conveying wheel (1) to rotate, and a conveying transmission mechanism (4), an output end of the conveying motor (3) is in transmission connection with one end of the conveying transmission mechanism (4), the other end of the conveying transmission mechanism (4) is in transmission connection with the conveying shaft (2), the conveying wheel (1) is fixedly sleeved on the conveying shaft (2), the conveying wheel (1) rotates coaxially with the conveying shaft (2), and the conveying wheel (1) abuts against the first pinch roller (6) or the first pinch roller (6) and the second pinch roller (7).

10. A printer comprising a pressure regulating pinch mechanism according to any of claims 1-9.