CN221022911U - Printer with a printing mechanism - Google Patents

Abstract

The utility model discloses a printer, which comprises a frame, a printing head, an abutting part, an adjusting part, an elastic part and a locking part, wherein the frame is provided with a screw connection part extending along a first direction; the printing head moves between a printing state and a preparation state relative to the frame; the abutting piece moves along a first direction or moves away from the first direction relative to the frame, and when the abutting piece moves along the first direction, the abutting piece abuts against the printing head to enable the printing head to move from a preparation state to a printing state; the adjusting piece is in threaded connection with the threaded connection part; the two ends of the elastic piece respectively act on the adjusting piece and the abutting piece, the elastic piece stores energy when the abutting piece moves away from the first direction, and the abutting piece is driven to move along the first direction by releasing energy; the locking piece is in threaded connection with the threaded connection part and abuts against one end of the adjusting piece, which is away from the elastic piece. The printing head can apply a proper force to the printing roller through the adjustment of the adjusting piece, so that the printing effect is ensured. The locking piece prevents the regulating part from loosening and retreating, ensures that the elastic piece applies consistent force to the printing head in the using process, and reduces maintenance.

Description

Printer with a printing mechanism

Technical Field

The utility model relates to the field of printing equipment, in particular to a printer.

Background

In the existing thermal sublimation printer, the printing head is pressurized, so that the printing head and the printing roller are better attached, a better printing effect is achieved, the two ends of the elastic piece are usually acted on the frame and the printing head respectively, so that pressure is applied to the printing head, however, according to the setting position of the printing head, the force finally acted on the printing head is affected, and if the printing head is upwards, the force of the elastic piece is reduced due to gravity, and finally the printing effect is deteriorated.

Disclosure of utility model

The present utility model has been made to overcome the above-mentioned drawbacks or problems occurring in the prior art, and an object of the present utility model is to provide a printer.

To achieve the above object, the present utility model and its preferred embodiments adopt the following technical solutions but the embodiments are not limited to the following solutions:

A printer includes

A frame provided with a screw portion extending in a first direction;

A print head mounted to the frame and movable relative to the frame between a print state and a ready state;

An abutment member that moves in or away from the first direction relative to the frame, the abutment member abutting the printhead when moved in the first direction to move the printhead from a ready state to a print state;

an adjusting piece which is in threaded connection with the threaded connection part;

The two ends of the elastic piece respectively act on the adjusting piece and the abutting piece, and the elastic piece stores energy when the abutting piece moves away from the first direction and drives the abutting piece to move along the first direction through energy release; and

The locking piece is in threaded connection with the threaded connection part and abuts against one end, deviating from the elastic piece, of the adjusting piece.

According to the second scheme, based on the first scheme, the number of the printing heads is at least two, and the number of the screw connection part, the abutting part, the adjusting part, the elastic part and the locking part is the same as the number of the printing heads and corresponds to the number of the printing heads one by one.

The third scheme is based on the first scheme, and the printing device further comprises a first driving piece and a second driving piece, wherein the first driving piece is arranged between the frame and the printing head, stores energy when the abutting piece moves along a first direction, and drives the printing head to move from a printing state to a preparation state through energy release; the second driving piece is provided with a fixing part and an output end, the fixing part is fixed relative to the stand or the abutting piece, and correspondingly, the output end is suitable for abutting the abutting piece or the stand; the output end moves relative to the fixed part and has a first stroke and a second stroke; releasing the constraint on the abutment by the second driving member in the first stroke allows the elastic member to drive the abutment to move in a first direction, and driving the abutment to move away from the first direction by the second driving member in the second stroke.

According to a fourth aspect, based on the third aspect, the second driving member is a linear motor, and the output end is adapted to extend or shorten in a first direction relative to the fixing portion.

The fifth scheme is based on the first scheme, the printing head extends along a second direction perpendicular to the first direction, the abutting piece is provided with a plurality of convex hulls distributed along the second direction, the convex hulls are suitable for abutting the printing head, and the convex hulls are symmetrical relative to a symmetry plane perpendicular to the second direction so that the convex hulls at two ends of the symmetry plane are symmetrical to each other; the elastic member acts on the abutment member on the symmetry plane.

According to the sixth scheme, based on the fifth scheme, the frame is provided with a guide pillar extending along a first direction, the abutting piece is provided with a first guide hole penetrating through the abutting piece along the first direction, the first guide hole is in sliding fit with the guide pillar along the first direction, the central shaft of the guide pillar and the central shaft of the first guide hole are located on the symmetrical plane, and the elastic piece is sleeved on the guide pillar.

Seventh, based on the sixth, the frame is provided with a guide pin extending in the second direction;

the abutting piece comprises two sliding parts arranged along a second direction and an abutting part connected with the two sliding parts and extending along the second direction, the convex hulls and the first guide holes are arranged on the abutting part, the two sliding parts are respectively provided with a second guide hole penetrating through the sliding parts along the second direction and extending along the first direction, and the two second guide holes are respectively matched with the two ends of the guide pin in a sliding mode along the first direction.

In an eighth aspect, based on the first aspect, the print head is rotatably connected to the frame about an axis perpendicular to the first direction so as to rotate between a printing state and a ready state with respect to the frame.

According to the ninth scheme, based on the eighth scheme, the frame is provided with a rotating shaft, the printing head is provided with a first rotating hole and a second rotating hole which are in rotating fit with the rotating shaft, the size of the first rotating hole is matched with the shaft diameter of the rotating shaft, and the size of the second rotating hole is larger than the shaft diameter of the rotating shaft.

In a tenth aspect, a printer includes

A frame provided with a screw portion extending in a first direction;

A print head mounted to the frame and movable relative to the frame between a print state and a ready state;

an adjusting piece which is in threaded connection with the threaded connection part;

The two ends of the elastic piece respectively act on the adjusting piece and the printing head and apply force to the printing head; and

The locking piece is in threaded connection with the threaded connection part and abuts against one end, deviating from the elastic piece, of the adjusting piece.

As can be seen from the above description of the present utility model and the preferred embodiments thereof, compared with the prior art, the technical solution of the present utility model and the preferred embodiments thereof have the following beneficial effects due to the following technical means:

1. In the first scheme and the preferred embodiment thereof, as the two ends of the elastic piece act on the adjusting piece and the abutting piece respectively, when the adjusting piece is in threaded connection with the threaded connection part, and the adjusting piece approaches to or is far away from the abutting piece along the opposite direction of the first direction, the elastic piece can be correspondingly compressed or stretched, so that the force applied by the elastic piece to the abutting piece is changed, the force applied to the printing head is changed, the printing head can apply a force with a proper magnitude to the printing roller through the adjustment of the adjusting piece, and the printing effect is ensured.

The locking piece is in threaded connection with the threaded connection part and abuts against one end of the adjusting piece, which is away from the elastic piece, and the adjusting piece is propped against the adjusting piece, unless the adjusting piece and the locking piece rotate simultaneously, the adjusting piece cannot loosen and retreat due to the force or vibration of the elastic piece, and the like, so that the force applied by the elastic piece to the printing head is consistent in the using process, and the maintenance is reduced.

The elastic piece drives the abutting piece to move along the first direction through releasing energy, the abutting piece abuts against the printing head when moving along the first direction to enable the printing head to move from the preparation state to the printing state, the elastic piece applies force to the printing head, the elastic piece is easy to control the stroke of the printing head due to the energy storage and energy release effects, the elastic piece has the buffering effect, and the elastic piece applies force to the printing head to prevent the printing head from excessively colliding with the printing roller.

2. In the second scheme and the preferred embodiment thereof, the number of the printing heads is at least two, the number of the screw connection parts, the abutting parts, the adjusting parts, the elastic parts and the locking parts is the same as the number of the printing heads and corresponds to each other one by one, when a plurality of printing heads are arranged, because the gravity, the manufacturing difference of the elastic parts and the like cause that the forces finally acting on the printing heads are possibly different, the forces of the printing heads on the printing rollers are different, and the adjusting parts corresponding to the printing heads are adjusted to be consistent, so that the effect of the printing heads is consistent, and the final printing effect is better.

3. In the third aspect and the preferred embodiments thereof, the fixing portion of the second driving member is fixed relative to the frame or the abutment member, and accordingly, the output end of the second driving member is adapted to abut against the abutment member or the frame, so that the output end of the second driving member moves relative to the fixing portion, and when the second driving member releases the constraint on the abutment member in the first stroke, the second driving member does not drive the abutment member to move along the first direction, and damage is not caused by excessive collision between the printing head and the printing roller due to the stroke of the output end. And the second driving piece drives the abutting piece to move away from the first direction in the second stroke of the output end, at the moment, the abutting piece does not apply pressure to the printing head any more, and at the moment, the first driving piece drives the printing head to move from the printing state to the preparation state through energy release, so that the two states of the printing head are switched.

4. In the fourth aspect and the preferred embodiment thereof, the second driving member is a linear motor, the output end is adapted to extend or shorten along the first direction relative to the fixing portion so as to drive the abutting member to slide along the first direction or away from the first direction, when the linear motor is used, the linear motor has a self-locking function, the abutting member can be lifted even if the output end is closed after the output end extends, a certain state can be maintained without keeping working all the time, and unnecessary energy waste is reduced.

5. In the fifth aspect and the preferred embodiments thereof, since the elastic member acts on the abutment member on the symmetry plane, and the convex hulls at the two ends of the symmetry plane are symmetrical to each other, the biasing force applied to the abutment member by the elastic member is evenly distributed to the two ends of the abutment member and finally transferred to the two ends of the printing head, so that the biasing force applied to the printing head where the printing head contacts the printing roller is the same, and the printing effect is better. Because only one elastic piece is used for applying force to the abutting piece, the phenomenon of uneven stress caused by deviation among a plurality of elastic pieces can not occur.

6. In the sixth aspect and the preferred embodiment thereof, the frame is provided with a guide post extending along a first direction, the abutting portion is provided with a first guide hole penetrating through the abutting portion along the first direction, the first guide hole is in sliding fit with the guide post along the first direction, a central shaft of the guide post and a central shaft of the first guide hole are located on a symmetrical plane, and the elastic piece is sleeved on the guide post, so that assembly and positioning of the elastic piece are achieved, and the elastic piece can act on the abutting piece on the symmetrical plane.

7. In the seventh aspect and the preferred embodiment thereof, the sliding fit relationship between the second guide hole and the guide pin, and the first guide hole and the guide post, makes the abutting piece unable to rotate relative to the frame, limits the degree of freedom of the abutting piece, improves the motion precision, and ensures that the abutting piece cannot apply force or change the force application position to the printing head due to deflection.

8. In the eighth aspect and the preferred embodiment thereof, since the abutting member is provided, even if the movement direction of the elastic member driving the abutting member is different from the movement direction of the print head, the movement conversion can be achieved by the abutting member abutting the print head through the force component, thereby achieving the rotation of the print head and the frame about the axis perpendicular to the first direction.

9. In scheme nine and its preferred embodiment, when the relative surface slope of printing roller of print head, print head one end is suitable for laminating the printing roller, the other end then can have the clearance with the printing roller, thereby it is not good to lead to printing effect, this scheme is equipped with the pivot through the frame, print head be equipped with pivot normal running fit's first pivot and second pivot, the hole size of first pivot is greater than the diameter of axle of pivot with the diameter of axle adaptation of pivot, the size of second pivot is greater than the diameter of axle of pivot, under the power that the elastic component applyed, the print head is located the one end of second pivot and can be adjusted relative to the pivot, thereby make the position of print head can be adjusted, make the both ends homoenergetic laminating printing roller of print head, realize the self-adaptation of print head.

10. In the tenth scheme and the preferred embodiment thereof, as the two ends of the elastic member act on the adjusting member and the printing head respectively, when the adjusting member is in threaded connection with the threaded connection portion, the elastic member is correspondingly compressed or stretched when the adjusting member approaches to the printing head along the first direction or moves away from the printing head along the opposite direction of the first direction, the force applied by the elastic member to the printing head is changed, the printing roller is applied with a proper force by the printing head through the adjustment of the adjusting member, and the printing effect is ensured. The elastic piece applies force to the printing head, the stroke of the printing head is easy to control due to the energy storage and release effects of the elastic piece, and the printing head is not excessively collided with the printing roller due to the fact that the elastic piece applies force to the printing head.

The locking piece is in threaded connection with the threaded connection part and abuts against one end of the adjusting piece, which is away from the elastic piece, and the adjusting piece is propped against the adjusting piece, unless the adjusting piece and the locking piece rotate simultaneously, the adjusting piece cannot loosen and retreat due to the force or vibration of the elastic piece, and the like, so that the force applied by the elastic piece to the printing head is consistent in the using process, and the maintenance is reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required to be used in the description of the embodiments below are briefly introduced, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a perspective view showing a part of the structure of a printer according to the first embodiment;

FIG. 2 is a front view showing a part of the structure of a printer according to the first embodiment;

FIG. 3 is a left side view of a printhead according to the first embodiment;

FIG. 4 is a right side view of a printhead according to the first embodiment;

FIG. 5 is a perspective view of an abutment according to an embodiment;

fig. 6 is a side view of a part of the structure of the printer in the first embodiment.

The main reference numerals illustrate:

A frame 1; a frame 11; a guide post 111; a guide pin 112; an adjusting member 12; a locking member 13; a rotating shaft 14;

A print head 2; a first rotating hole 21; a second swivel hole 22;

An abutment 3; a sliding portion 31; a second guide hole 311; an abutment portion 32; a first guide hole 321; convex hull 322;

An elastic member 4; a first driving member 5; a second driving member 6; a fixing portion 61; an output 62;

a first direction 91; a second direction 92; a plane of symmetry 93.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. It is to be understood that the described embodiments are preferred embodiments of the utility model and should not be taken as excluding other embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without creative efforts, are within the protection scope of the present utility model.

In the claims, specification and drawings hereof, unless explicitly defined otherwise, the terms "first," "second," or "third," etc. are used for distinguishing between different objects and not for describing a particular sequential order.

In the claims, specification and drawings of the present utility model, unless explicitly defined otherwise, references to orientation or positional relationship such as the terms "center", "lateral", "longitudinal", "horizontal", "vertical", "top", "bottom", "inner", "outer", "upper", "lower", "front", "rear", "left", "right", "clockwise", "counterclockwise", etc. are based on the orientation and positional relationship shown in the drawings and are merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus or element referred to must have a particular orientation or be constructed and operated in a particular orientation, nor should it be construed as limiting the particular scope of the utility model.

In the claims, specification and drawings of the present utility model, unless explicitly defined otherwise, the term "fixedly connected" or "fixedly connected" should be construed broadly, i.e. any connection between them without a displacement relationship or a relative rotation relationship, that is to say includes non-detachably fixedly connected, integrally connected and fixedly connected by other means or elements.

In the claims, specification and drawings of the present utility model, the terms "comprising," having, "and variations thereof as used herein, are intended to be" including but not limited to.

Example 1

Referring to fig. 1 to 6, a printer includes a frame 1, a printhead 2, an abutment 3, an elastic member 4, a first driving member 5, and a second driving member 6.

Referring to fig. 2, the frame 1 includes a frame body 11, an adjusting member 12, and a locking member 13. The frame 11 is provided with a guide post 111 extending in a first direction 91 and a guide pin 112 extending in a second direction 92 perpendicular to the first direction 91; the guide post 111 is further provided with a threaded portion extending in the first direction 91. The adjusting member 12 and the locking member 13 are both in threaded connection with the threaded connection portion, the locking member 13 and the adjusting member 12 are arranged along the first direction 91, and the locking member 13 abuts against the adjusting member 12. The frame 1 is also provided with a rotation shaft 14.

Referring to fig. 2, the printhead 2 extends in a second direction 92, and the printhead 2 moves relative to the frame 1 between a printing state and a ready state, in which the printhead 2 is rotatably coupled to the frame 1 about an axis to rotate relative to the frame 1 between the printing state and the ready state, and in which the printhead 2 is closer to the print medium and the printhead 2 is farther from the print medium. Specifically, referring to fig. 3 and 4, the print head 2 is provided with a first rotating hole 21 and a second rotating hole 22, which are in rotating fit with the rotating shaft 14 of the frame 1, the first rotating hole 21 is sized to be matched with the shaft diameter of the rotating shaft 14, the second rotating hole 22 is sized to be larger than the shaft diameter of the rotating shaft 14, and the second rotating hole 22 is an elliptical hole. The number of the printing heads 2, the abutting parts 3, the first driving parts 5, the second driving parts 6, the adjusting parts 12, the locking parts 13 and the screw connection parts are the same as the number of the printing heads 2 and are in one-to-one correspondence.

The abutment 3 moves in a first direction 91 or away from the first direction 91 relative to the frame 1, and the abutment 3 abuts the printhead 2 when moving in the first direction 91 to move the printhead 2 from the ready state to the printing state.

Referring to fig. 2, in the present embodiment, the abutment 3 slides in the first direction 91 with respect to the frame 1, and the rotational axis of the printhead 2 is perpendicular to the first direction 91, since the abutment 3 is provided, even if the movement direction of the elastic member 4 driving the abutment 3 is different from the movement direction of the printhead 2, the abutment of the printhead 2 by the abutment 3 can achieve movement conversion by the component of force.

Referring to fig. 5, specifically, the abutment 3 includes two sliding portions 31 and an abutment portion 32, the two sliding portions 31 are disposed along a second direction 92 and each extend along a first direction 91, and the two sliding portions 31 are each provided with a second guide hole 311 penetrating the sliding portion 31 along the second direction 92 and extending along the first direction 91. The abutting portion 32 is configured to abut against the print head 2, the abutting portion 32 extends along the second direction 92, two sliding portions 31 are connected to two ends of the abutting portion 32, and the abutting portion 32 is provided with a first guide hole 321 penetrating the abutting portion 32 along the first direction 91. The abutment 32 comprises at least two convex hulls 322 running in a second direction 92 perpendicular to the first direction 91, the convex hulls 322 being adapted to abut against the print head 2, each convex hull 322 being symmetrical with respect to a plane of symmetry 93 perpendicular to the second direction 92 such that the convex hulls 322 at both ends of the plane of symmetry 93 are symmetrical with each other. In this embodiment, the number of convex hulls 322 is two; when there are three convex hulls 322, one of the convex hulls 322 is located at the symmetry plane 93.

Referring to fig. 1 and 2, two ends of the guide pin 112 extend into two second guide holes 311 respectively, so that the two second guide holes 311 are in sliding fit with two ends of the guide pin 112 along the first direction 91 respectively; the first guide hole 321 is slidably engaged with the guide post 111 along the first direction 91. Through the sliding fit relationship between the second guide hole 311 and the guide pin 112, the first guide hole 321 and the guide post 111, the abutting piece 3 cannot rotate relative to the frame 1, so that the freedom degree of the abutting piece 3 is limited, the movement precision is improved, and the abutting piece 3 cannot deflect due to gravity, vibration or the like to cause the incapability of applying force to the printing head 2 or the change of the force application position.

Referring to fig. 2, the elastic member 4 is installed between the frame 1 and the abutment member 3, and the elastic member 4 stores energy when the abutment member 3 moves away from the first direction 91 and drives the abutment member 3 to move along the first direction 91 by releasing the energy; specifically, the elastic member 4 is a spring, rubber, or the like. The two ends of the elastic piece 4 respectively act on one side of the adjusting piece 12 and the abutting piece 3 of the frame 11, which deviate from the abutting part 32, so that the force applied by the elastic piece 4 to the abutting piece 3 can be adjusted through the threaded connection of the adjusting piece 12 and the threaded connection part, the force applied to the printing head 2 is changed, the locking piece 13 is in threaded connection with the threaded connection part and abuts against one end of the adjusting piece 12, which deviates from the elastic piece 4, and the adjusting piece 12 is propped against, and unless the adjusting piece 12 and the locking piece 13 rotate simultaneously, the adjusting piece 12 cannot loosen and retreat due to the force or vibration of the elastic piece 4, and the like, so that the force applied by the elastic piece 4 to the printing head 2 in the using process is ensured to be consistent, and maintenance is reduced.

And the elastic member 4 acts on the abutment 3 on the symmetrical surface 93 so that the same biasing force can be applied to both convex hulls 322. Specifically, the elastic member 4 is sleeved on the guide post 111, and the central axes of the guide post 111 and the first guide hole 321 are also located on the symmetry plane 93.

Referring to fig. 6, a first driving member 5 is installed between the frame 1 and the printhead 2, stores energy when the abutment member 3 moves in a first direction 91, and drives the printhead 2 from a printing state to a ready state by releasing energy, and specifically, the first driving member 5 is a tension spring, both ends of which respectively hook the frame 11 and the printhead 2.

Referring to fig. 2, the second driving member 6 is provided with a fixing portion 61 and an output end 62, the fixing portion 61 is fixed relative to the frame 1, the output end 62 is adapted to abut against the abutment member 3, and the output end 62 moves relative to the fixing portion 61 and has a first stroke and a second stroke; releasing the constraint on the abutment 3 by the second driving member 6 in the first stroke allows the elastic member 4 to drive the abutment 3 to slide in the first direction 91, and driving the abutment 3 to move away from the first direction 91 by the second driving member 6 in the second stroke. In this embodiment, the second driving member 6 is a linear motor, the output end 62 is a screw rod thereof, the output end 62 is adapted to extend or shorten in the first direction 91 relative to the fixing portion 61, the second stroke corresponds to the extension, the first stroke corresponds to the shortening, the linear motor has a self-locking function, and after the output end 62 extends, the lifting of the abutting member 3 can be ensured even if the output end 62 is closed, a certain state can be maintained without always keeping working, and unnecessary energy waste is reduced.

It should be understood that the fixing portion 61 may be fixed relative to the abutment member 3, and the output end 62 is adapted to abut against the frame 1, and the second driving member 6 is exemplified as a linear motor, and the second stroke corresponds to the extension and the first stroke corresponds to the shortening.

Of course, the output end 62 of the second driving member 6 may also be a cam structure, which will not be described in detail.

Since the output end 62 of the second driving member 6 is in abutting relationship with the abutting member 3, when the second driving member 6 releases the constraint on the abutting member 3 in the first stroke, the second driving member 6 does not drive the abutting member 3 to move along the first direction 91, and damage caused by excessive collision between the printhead 2 and the printing roller due to the stroke of the output end 62 is avoided. When the output end 62 is in the first stroke, the elastic member 4 drives the abutting member 3 to move along the first direction 91 through releasing energy, the abutting member 3 abuts against the printing head 2 when moving along the first direction 91 to enable the printing head 2 to move from the ready state to the printing state, the elastic member 4 applies force to the printing head 2, the elastic member 4 has the effects of energy storage and energy release, the stroke of the printing head 2 is easy to control, the buffering effect is achieved, and the elastic member 4 applies force to the printing head 2, so that excessive collision between the printing head 2 and the printing roller cannot be caused. In the second stroke of the output end 62, the second driving member 6 drives the abutting member 3 to move away from the first direction 91, at this time, the abutting member 3 will no longer apply pressure to the printing head 2, and at this time, the first driving member 5 drives the printing head 2 to move from the printing state to the preparing state through releasing energy, so as to realize the switching of the two states of the printing head 2.

Since the elastic member 4 acts on the abutting member 3 on the symmetrical surface 93, and the convex hulls 322 at both ends of the symmetrical surface 93 are symmetrical to each other, the biasing force applied to the abutting member 3 by the elastic member 4 is equally divided to both ends of the abutting member 3 and finally transmitted to both ends of the printing head 2, so that the biasing force applied to the printing head 2 where it contacts the printing roller is the same, and the printing effect is better.

Under the force exerted by the elastic piece 4, one end of the printing head 2, which is positioned at the second rotating hole 22, can be adjusted relative to the rotating shaft 14, so that the position of the printing head 2 can be adjusted, the two ends of the printing head 2 along the second direction 92 can be attached to the printing roller, the self-adaption of the printing head 2 is realized, and the better printing effect is realized.

Example two

Unlike the first embodiment, there is no abutment 3 in this embodiment.

In the present embodiment, too, the frame 1 is provided with a screw portion extending in the first direction; the printing head 2 is arranged on the frame 1 and moves between a printing state and a preparation state relative to the frame 1; the adjusting piece 12 is in threaded connection with the threaded connection part; the two ends of the elastic piece 4 respectively act on the adjusting piece and the printing head and apply force to the printing head; the locking piece 13 is in threaded connection with the threaded connection part and abuts against one end of the adjusting piece 12, which is away from the elastic piece 4.

Because the two ends of the elastic member 4 act on the adjusting member 12 and the printing head 2 respectively, when the adjusting member 12 is in threaded connection with the threaded connection part, and the adjusting member 12 is close to the printing head 2 along the first direction or is far away from the printing head 2 along the opposite direction of the first direction, the elastic member 4 can be correspondingly compressed or stretched, the force applied by the elastic member 4 to the printing head 2 is changed, the printing head 2 can apply a force with a proper magnitude to the printing roller through the adjustment of the adjusting member 12, and the printing effect is ensured. The elastic piece 4 applies force to the printing head 2, so that the elastic piece 4 has the effects of energy storage and energy release, the stroke of the printing head 2 is easy to control, the buffer effect is achieved, and the printing head 2 cannot be excessively collided with a printing roller due to the fact that the elastic piece 4 applies force to the printing head 2.

The locking piece 13 and the spiro union portion spiro union and with the one end that regulating piece 12 deviates from the elastic component offset, withstands regulating piece 12, unless regulating piece 12 and locking piece 13 rotate simultaneously, regulating piece 12 just can not loosen and move back because of reasons such as the power of elastic component 4 or vibrations, guarantees that in the use, the elastic component 4 is unanimous to the power that printing head 2 applys, reduces the maintenance.

Also in the present embodiment, since the abutting piece 3 is not provided, the first driving piece 5 may not be provided, the fixing portion 61 of the second driving piece 6 is fixed with respect to the frame 1, and the output end 62 abuts against the print head 2 accordingly (or the fixing portion 61 is opposite to the position of the output end 62), thereby achieving movement of the print head 2 to the ready state.

The foregoing description of the embodiments and description is presented to illustrate the scope of the utility model, but is not to be construed as limiting the scope of the utility model. Modifications, equivalents, and other improvements to the embodiments of the utility model or portions of the features disclosed herein, as may occur to persons skilled in the art upon use of the utility model or the teachings of the embodiments, are intended to be included within the scope of the utility model, as may be desired by persons skilled in the art from a logical analysis, reasoning, or limited testing, in combination with the common general knowledge and/or knowledge of the prior art.

Claims (10)

1. A printer, characterized by: comprising

A frame (1) provided with a screw portion extending in a first direction (91);

A print head (2) mounted to the frame (1) and movable relative to the frame (1) between a printing state and a ready state;

An abutment (3) that moves in a first direction (91) or away from the first direction (91) relative to the chassis (1), the abutment (3) abutting the printhead (2) when moved in the first direction (91) to move the printhead (2) from a ready state to a print state;

an adjusting member (12) screwed to the screw portion;

The two ends of the elastic piece (4) respectively act on the adjusting piece (12) and the abutting piece (3), the elastic piece (4) stores energy when the abutting piece (3) moves away from the first direction (91), and the abutting piece (3) is driven to move along the first direction (91) through energy release; and

And the locking piece (13) is in threaded connection with the threaded connection part and abuts against one end of the adjusting piece (12) deviating from the elastic piece (4).

2. A printer as claimed in claim 1, wherein: the number of the printing heads (2) is at least two, and the number of the screw connection parts, the abutting parts (3), the adjusting parts (12), the elastic parts (4) and the locking parts (13) is the same as the number of the printing heads (2) and corresponds to one another.

3. A printer as claimed in claim 1, wherein: the printing device further comprises a first driving piece (5) and a second driving piece (6), wherein the first driving piece (5) is arranged between the frame (1) and the printing head (2), stores energy when the abutting piece (3) moves along a first direction (91), and drives the printing head (2) to move from a printing state to a preparation state through energy release; the second driving piece (6) is provided with a fixing part (61) and an output end (62), the fixing part (61) is fixed relative to the stand (1) or the abutting piece (3), and correspondingly the output end (62) is suitable for abutting the abutting piece (3) or the stand (1); the output end (62) moves relative to the fixed part (61) and has a first stroke and a second stroke; releasing the constraint on the abutment (3) by the second driving member (6) in the first stroke causes the elastic member (4) to drive the abutment (3) to move in a first direction (91), and the second driving member (6) drives the abutment (3) to move away from the first direction (91) in the second stroke.

4. A printer according to claim 3, wherein: the second driving member (6) is a linear motor, and the output end (62) is adapted to be elongated or shortened in a first direction (91) relative to the fixed portion (61).

5. A printer as claimed in claim 1, wherein: the print head (2) extends along a second direction (92) perpendicular to the first direction (91), the abutting element (3) is provided with a plurality of convex hulls (322) distributed along the second direction (92), the convex hulls (322) are suitable for abutting the print head (2), and the convex hulls (322) are symmetrical relative to a symmetry plane (93) perpendicular to the second direction (92) so that the convex hulls (322) positioned at two ends of the symmetry plane (93) are symmetrical to each other; the elastic element (4) acts on the abutment (3) on the symmetry plane (93).

6. A printer according to claim 5, wherein: the frame (1) is equipped with guide pillar (111) that extend along first direction (91), abutting piece (3) are equipped with along first direction (91) link up first guide hole (321) of abutting piece (3), first guide hole (321) with guide pillar (111) are along first direction (91) sliding fit, the center pin of guide pillar (111) with the center pin of first guide hole (321) is located symmetry plane (93), elastic component (4) cover is located guide pillar (111).

7. A printer as in claim 6, wherein: the frame (1) is provided with a guide pin (112) extending in a second direction (92);

The abutting piece (3) comprises two sliding parts (31) distributed along a second direction (92) and an abutting part (32) connected with the two sliding parts (31) and extending along the second direction (92), wherein the convex hulls (322) and the first guide holes (321) are arranged on the abutting part (32), the two sliding parts (31) are respectively provided with second guide holes (311) penetrating through the sliding parts (31) along the second direction (92) and extending along the first direction (91), and the two second guide holes (311) are respectively in sliding fit with the two ends of the guide pin (112) along the first direction (91).

8. A printer as claimed in claim 1, wherein: the printhead (2) is rotatably coupled to the frame (1) about an axis perpendicular to the first direction (91) for rotation relative to the frame (1) between a printing position and a ready position.

9. A printer as claimed in claim 8, wherein: the printing machine is characterized in that the frame (1) is provided with a rotating shaft (14), the printing head (2) is provided with a first rotating hole (21) and a second rotating hole (22) which are in rotating fit with the rotating shaft (14), the size of the first rotating hole (21) is matched with the shaft diameter of the rotating shaft (14), and the size of the second rotating hole (22) is larger than the shaft diameter of the rotating shaft (14).

10. A printer, characterized by: comprising

A frame (1) provided with a screw portion extending in a first direction (91);

A print head (2) mounted to the frame (1) and movable relative to the frame (1) between a printing state and a ready state;

an adjusting member (12) screwed to the screw portion;

An elastic member (4) having both ends acting on the regulating member (12) and the printing head (2) and applying a force to the printing head (2), respectively; and

And the locking piece (13) is in threaded connection with the threaded connection part and abuts against one end of the adjusting piece (12) deviating from the elastic piece (4).