CN211764296U

CN211764296U - Printer, printing head external member and printing head fixing assembly

Info

Publication number: CN211764296U
Application number: CN202020163554.4U
Authority: CN
Inventors: 陈可君; 江咸坤
Original assignee: TSC Auto ID Technology Co Ltd
Current assignee: TSC Auto ID Technology Co Ltd
Priority date: 2020-02-12
Filing date: 2020-02-12
Publication date: 2020-10-27
Anticipated expiration: 2030-02-12

Abstract

The utility model discloses a printer, type printing head external member and type printing head fixed subassembly, this printer contain upper cover mechanism and base mechanism. The upper cover mechanism comprises an upper cover body and a printing head suite. The printing head external member comprises a fixing frame, a printing head module and an abutting piece. The fixing frame is fixedly arranged on the upper cover body and comprises a plurality of first fixing structures. The lettering head module is fixedly arranged on the fixing frame. The abutting piece is provided with a plurality of second fixing structures, and the abutting piece can be detachably fixed on the fixing frame in at least more than two postures through the mutual matching of the second fixing structures, the first fixing structures and the locking pieces. The upper cover mechanism is arranged above the base mechanism. When the printer prints the preset pattern on the medium material to be printed through the print head module, the medium material to be printed moves from the print head module to the direction of the propping piece.

Description

Printer, printing head external member and printing head fixing assembly

Technical Field

The utility model relates to a printer, printing head external member and printing head fixed subassembly, in particular to printer and printing head external member, printing head fixed subassembly that are used for printing bar code, label.

Background

The existing printer for printing bar codes or labels comprises a printing head suite, wherein the printing head suite comprises a printing head and a fixing mechanism, the printing head is fixed on the fixing mechanism, and the fixing mechanism is fixed on a body of the printer. Generally, the fixing mechanism is made of a metal material by integral molding, and after the print head is mounted on the fixing mechanism, a gap is formed between the print head and a part of the fixing mechanism due to various factors such as manufacturing tolerance and assembling tolerance.

When printing information on a sheet or a label to be printed, the printer generally moves the sheet back and forth to adjust the printing position of the sheet (i.e., a calibration operation). However, when the paper to be printed moves backward, the front edge of the paper to be printed may fall into the gap, and when the paper to be printed is driven again to move forward, the paper to be printed is likely to jam, and the paper to be printed deviates from the originally predetermined position, which may cause problems such as that the printer cannot print normally or the print head does not print information correctly on the default position of the paper to be printed.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a printer, printing head external member and printing head fixed subassembly mainly are used for improving, and current label, bar code printer are carrying out the in-process that the paper was rectified, and the back-and-forth movement of paper will probably take place the situation that the leading edge of paper falls into the clearance between printing head and the fixed establishment, and then probably take place card paper, printing head and do not print information correctly at the acquiescence position scheduling problem of waiting to print media material.

The utility model discloses one of them embodiment is a printer, and it contains: an upper cover mechanism and a base mechanism, upper cover mechanism contain an upper cover body and a printing head external member, and the printing head external member contains: the fixing frame is fixedly arranged on the upper cover body and comprises a plurality of first fixing structures; the printing head module is fixedly arranged on the fixing frame and used for printing a preset pattern on a medium material to be printed; the abutting piece is detachably and fixedly arranged on the fixing frame through the plurality of second fixing structures, the plurality of first fixing structures and the plurality of locking pieces, and the plurality of second fixing structures, the plurality of first fixing structures and the plurality of locking pieces can be mutually matched to enable the abutting piece to be fixed on the fixing frame in at least more than two postures; the base mechanism is connected with the upper cover mechanism, and the upper cover mechanism is arranged above the base mechanism; the printing head module is used for pushing the medium material to be printed to the butting piece, and the medium material to be printed is pushed to the butting piece by the pushing piece.

Preferably, the fixing frame comprises a top plate and two side plates, the printing head module is fixedly arranged on a wide side surface of the top plate, the two side plates are formed by extending two opposite side edges of the top plate to a direction far away from the wide side surface, and the two side plates are arranged opposite to each other; each side plate is provided with two first fixing structures, and each first fixing structure is a lock hole; two opposite ends of the propping piece are respectively provided with two second fixing structures, and each second fixing structure is a lock hole; the inner diameter of each first fixing structure is larger than that of each second fixing structure; each locking piece is a screw; when the locking pieces do not enable the abutting pieces to be completely fixed with the fixing frame, the abutting pieces can move relative to the fixing frame in the direction far away from or close to the printing head module; the body is provided with a groove, and two opposite wide side surfaces of the body are respectively defined as a top surface and a bottom surface; the groove is used for accommodating the limiting structure; when the locking pieces are not completely fixed with the fixing frame, the limiting structures are correspondingly arranged in the grooves and can move in the grooves, and the limiting structures and the grooves can limit the moving range of the abutting pieces moving towards the direction far away from or close to the printing head module relative to the fixing frame.

Preferably, the fixing frame comprises a top plate and two side plates, the printing head module is fixedly arranged on a wide side surface of the top plate, the two side plates are formed by extending two opposite side edges of the top plate to a direction far away from the wide side surface, and the two side plates are arranged opposite to each other; each side plate is provided with at least one first fixing structure, and each first fixing structure is a lock hole; two opposite ends of the propping piece are respectively provided with at least one second fixing structure, and each second fixing structure is a lock hole; the inner diameter of each first fixing structure is larger than that of each second fixing structure; each locking piece is a screw; when the plurality of locking pieces do not enable the abutting piece to be completely fixed with the fixing frame, the abutting piece can rotate relative to the fixing frame.

Preferably, the print head module comprises a heat dissipation block, a circuit board and a heating assembly, two opposite wide side surfaces of the heat dissipation block are respectively defined as a top surface of the heat dissipation block and a bottom surface of the heat dissipation block, the top surface of the heat dissipation block is provided with a plurality of lock holes, the heat dissipation block can be fixedly locked on the fixing frame by matching with a plurality of screws, and the bottom surface of the heat dissipation block is provided with the circuit board; a narrow side surface of the circuit board is not flush with a narrow side surface of an adjacent circuit board, and the narrow side surface of the circuit board and the top surface of the radiating block form a gap together; the heating component is fixed on the circuit board; a protruding structure is formed by protruding a narrow side of the body, and two opposite sides of the narrow side are respectively connected with the top surface and the bottom surface; when the propping piece is fixed on the locking piece, the narrow side face is arranged on one side of the heat dissipation block, and at least one part of the protruding structure is correspondingly positioned in the notch.

The utility model discloses a one of them embodiment is a printing head external member, and it is fixed in a printer, and printing head external member contains: the printing head comprises a fixing frame, a printing head module and a propping piece, wherein the fixing frame comprises a plurality of first fixing structures; the printing head module is fixedly arranged on the fixing frame and used for printing a preset pattern on a medium material to be printed; the abutting piece is detachably and fixedly arranged on the fixing frame through the plurality of second fixing structures, the plurality of first fixing structures and the plurality of locking pieces, and the plurality of second fixing structures, the plurality of first fixing structures and the plurality of locking pieces can be mutually matched to enable the abutting piece to be fixed on the fixing frame in at least more than two postures; the printing head module is used for pushing the medium material to be printed to the butting piece, and the medium material to be printed is pushed to the butting piece by the pushing piece.

Preferably, the print head module comprises a heat dissipation block, a circuit board and a heating assembly, two opposite wide side surfaces of the heat dissipation block are respectively defined as a top surface of the heat dissipation block and a bottom surface of the heat dissipation block, the top surface of the heat dissipation block is provided with a plurality of lock holes, the heat dissipation block can be fixedly locked on the fixing frame by matching with a plurality of screws, and the bottom surface of the heat dissipation block is provided with the circuit board; a narrow side surface of the circuit board is not flush with a narrow side surface of an adjacent circuit board, and the narrow side surface of the circuit board, the top surface of the radiating block and the narrow side surface of the radiating block form a gap together; the heating component is fixed on the circuit board; a protruding structure is formed by protruding a narrow side of the body, and two opposite sides of the narrow side are respectively connected with the top surface and the bottom surface; when the propping piece is fixed on the locking piece, the narrow side face is arranged on one side of the heat dissipation block, and at least one part of the protruding structure is correspondingly positioned in the notch.

The utility model discloses a fixed subassembly of type head is disclosed to one of them embodiment, and it is arranged in making a type head module be fixed in a printer, and the fixed subassembly of type head contains: a mount and a top piece, the mount includes: the printing head module comprises a top plate, two side plates and four first fixing structures, wherein one wide side surface of the top plate is used for arranging the printing head module; the two side plates are formed by extending two opposite side edges of the top plate to the direction far away from the wide side surface, and the two side plates are arranged opposite to each other; each first fixing structure is a lock hole, two first fixing structures are formed on one side plate, and the other two second fixing structures are formed on the other side plate; two opposite ends of the propping piece are respectively provided with two first fixing structures, and each second fixing structure is a lock hole; the butting piece is detachably and fixedly arranged on the fixing frame through the plurality of second fixing structures, the four first fixing structures and the plurality of locking pieces, and the plurality of second fixing structures, the four first fixing structures and the plurality of locking pieces can be mutually matched to enable the butting piece to be fixed on the fixing frame in at least more than two postures; the printing head module is fixed on the fixing frame, the printing head fixing assembly is arranged in the printer, and in the process that the printer prints a preset pattern on a medium material to be printed, the medium material to be printed moves from the printing head module to the direction of the abutting piece.

Preferably, the abutting piece comprises a body, two opposite wide side surfaces of the body are respectively defined as a top surface and a bottom surface, the body protrudes from the top surface to form a limiting structure, and the fixing frame is provided with a groove; the groove is used for accommodating the limiting structure; when the plurality of locking parts do not enable the abutting part to be completely fixed with the fixing frame, the limiting structures are correspondingly arranged in the grooves and can move in the grooves, the limiting structures and the grooves can limit the moving range of the abutting part moving towards the direction far away from or close to the printing head relative to the fixing frame, and the abutting part can rotate relative to the fixing frame; wherein, a protruding structure is formed by protruding a narrow side of the body, and two opposite sides of the narrow side are respectively connected with the top surface and the bottom surface; when the propping piece is fixed on the locking piece, at least one part of the protruding structure can be correspondingly positioned in a notch of the printing head module.

To sum up, the utility model discloses a printer, first external member of type and the fixed subassembly of type, set up in the design of mount through supporting a detachably, the assembly personnel is at the equipment type head, support the in-process of top member and type head, will be able to support the fixed position of top member through the adjustment, reduce the type head and support the clearance between the top member, therefore, carry out the paper correction when the printer, and when treating the printing medium material back-and-forth movement, treat that the leading edge of printing medium material will be difficult to fall into the type head and support the clearance between the top member, and then can reach better printing quality.

For a further understanding of the features and technical content of the present invention, reference should be made to the following detailed description and accompanying drawings, which are only intended to illustrate the present invention, and not to limit the scope of the present invention.

Drawings

Fig. 1 is a schematic diagram of a printer according to the present invention.

Fig. 2 is a schematic diagram of a base mechanism of the printer according to the present invention.

Fig. 3 is a schematic diagram of the upper cover mechanism of the printer according to the present invention.

Fig. 4 is a partially enlarged schematic view of the cover mechanism of the printer according to the present invention.

Fig. 5 is an exploded view of the upper cover body and the print head set of the upper cover mechanism of the printer according to the present invention.

Fig. 6 is a schematic view of the printing head set of the present invention.

Fig. 7 is a partially exploded view of the printing head set according to the present invention.

Fig. 8 is a partially exploded view of another view angle of the printing head set according to the present invention.

Fig. 9 is another partially exploded view of the printing head set according to the present invention.

Fig. 10 is a side view of the abutting member of the printing head set according to the present invention.

Fig. 11 is a partial sectional view of the printing head set according to the present invention.

Fig. 12 is a side view of the printing head set of the present invention.

Fig. 13 is a schematic side view of the upper cover mechanism of the present invention with a carbon ribbon.

Fig. 14 is a schematic side view of a thermal transfer ribbon wound around a print head set.

Fig. 15 is a partially enlarged schematic view of another embodiment of the capping mechanism of the printer according to the present invention.

Detailed Description

In the following description, reference is made to or shown in the accompanying drawings for the purpose of illustrating the subject matter described herein, and in which is shown by way of illustration only, and not by way of limitation, specific reference may be made to the drawings.

Please refer to fig. 1 to 5 together, fig. 1 is a schematic diagram of the printer of the present invention, fig. 2 is a schematic diagram of the base mechanism of the printer of the present invention, fig. 3 is a schematic diagram of the upper cover mechanism of the printer of the present invention, fig. 4 is a schematic diagram of the upper cover mechanism of the printer of the present invention with a partially enlarged view, and fig. 5 is a schematic diagram of the upper cover body and the printing head set of the upper cover mechanism of the printer of the present invention. The printer 100 of the present invention is used to print a predetermined pattern (such as various bar codes, characters, numbers, etc.) on a medium to be printed (such as label paper or various types of paper). In the following description, only some components of the printer 100 of the present invention will be described in detail, and the parts not described may be designed according to the requirements, which is not limited herein.

As shown in fig. 1 to 3, the printer 100 of the present invention includes a base mechanism 1 and a cover mechanism 2. The upper cover mechanism 2 is connected with the base mechanism 1. In practical applications, the base mechanism 1 and the cover mechanism 2 may be connected in such a manner that, for example, one end of the cover mechanism 2 is pivoted to the base mechanism 1, and a user can rotate the cover mechanism 2 relative to the base mechanism 1 according to requirements. In different embodiments, the base mechanism 1 and the cover mechanism 2 may not be pivotally connected to each other, and the base mechanism 1 and the cover mechanism 2 are only detachably engaged and fixed.

The base mechanism 1 includes a base body 10, a pressing roller 11 and a paper roll fixing frame 12. The pressing roller 11 is arranged on the base body 10, the paper roll fixing frame 12 is arranged on the base body 10, the pressing roller 11 is arranged at the front end of the base mechanism 1, and the paper roll fixing frame 12 is arranged at the rear end of the base mechanism 1. The pressing roller 11 is used for pressing the medium material to be printed when the printer 100 prints a predetermined pattern on the medium material to be printed, and the paper roll fixing frame 12 is used for fixing the paper roll to be printed.

As shown in fig. 3 to 5, the capping mechanism 2 includes a capping body 20 and a print head set 21. The print head kit 21 is detachably fixed to the upper cover body 20, the print head kit 21 is located at the front end of the upper cover body 20, the rear end of the upper cover body 20 may have a receiving slot 201, and the receiving slot 201 is used for receiving a paper roll to be printed.

Please refer to fig. 6 to 10 together, fig. 6 is a schematic view of the printing head kit of the present invention, fig. 7 is a schematic view of the local decomposition of the printing head kit of the present invention, fig. 8 is a schematic view of another viewing angle of the printing head kit of the present invention, fig. 9 is a schematic view of the local decomposition of the printing head kit of the present invention, and fig. 10 is a side view of the printing head kit of the present invention.

The print head set 21 includes: a fixing frame 211, a printhead module 212, a supporting member 213 and a printhead protection cover 214. The fixing frame 211 is used to be fixedly disposed on the upper lid body 20. The printhead module 212 is fixedly disposed on the fixing frame 211, and the printhead module 212 is used for printing a predetermined pattern on a medium to be printed. In practical applications, the type and form of the print head module 212 can be selected according to requirements, for example, the print head module 212 can print part of the ink on the carbon ribbon onto the medium to be printed in a thermal induction manner. The propping element 213 is detachably fixed on the fixing frame 211. The printhead protection cover 214 is fixedly disposed on the fixing frame 211, and a portion of the printhead protection cover 214 covers the circuit board of the printhead module 212 to protect related electronic components on the circuit board.

As shown in fig. 7, the fixing frame 211 may further include a top plate 2111 and two side plates 2112. The head module 212 is fixed to one wide side 21111 of the top plate 2111. The two side plates 2112 are formed by extending both sides of the top plate 2111 opposite to each other in a direction away from the wide side 21111, and the two side plates 2112 are disposed facing each other. It should be noted that the terms "wide" and "narrow" in this document are relative terms, and the width of the wide side of an object is greater than the width of the narrow side of the object, and are not intended to limit the specific size values of the wide side and the narrow side of the object.

Each side plate 2112 is formed with two first securing structures 21121, each of which may be, for example, a locking hole. The number of first fixing structures 21121 of each side plate 2112 is not limited to two, and in different embodiments, each side plate 2112 may have only one first fixing structure 21121. In addition, the position of the first fixing structure 21121 formed on the side plate 2112 of each side plate 2112 may vary according to the requirements, and is not limited to the illustration in the drawings.

The printhead module 212 includes a heat sink 2121, a circuit board 2122 and a heating element 2123, two opposite sides of the heat sink 2121 define a heat sink top surface 21211 and a heat sink bottom surface 21212, the heat sink top surface 21211 has a plurality of locking holes, and the heat sink 2121 can be locked to the fixing frame 211 by a plurality of screws. The heat slug bottom surface 21212 is provided with a circuit board 2122. The heating element 2123 is fixed to the circuit board 2122. The heating element 2123 comprises a plurality of heating points, and the heating element 2123 can be controlled to raise the temperature of a specific heating point so as to transfer the ink of the ribbon onto the medium to be printed or change the color of a part of the heat-sensitive paper. Since the heating element 2123 generates a large amount of heat energy during operation, the heat dissipation block 2121 is used to assist the heating element 2123 in dissipating heat.

Two opposite ends of the abutting member 213 are respectively provided with two second fixing structures 2131, the abutting member 213 is detachably fixed to the fixing frame 211 through four second fixing structures 2131, four first fixing structures 21121 and four locking members 215, and the four second fixing structures 2131, the four first fixing structures 21121 and the four locking members 215 can be mutually matched, so that the abutting member 213 is fixed to the fixing frame 211 in at least two postures. The number of the first fixing structures 21121, the second fixing structures 2131 and the locking elements 215 can be increased or decreased according to the requirement, and is not limited to four.

As shown in fig. 7 to 9, in practical applications, each of the first fixing structures 21121 and each of the second fixing structures 2131 may be a lock hole, for example, and the inner diameter of each of the first fixing structures 21121 is larger than the inner diameter of each of the second fixing structures 2131, and the plurality of locking elements 215 are screws. When the supporting member 213 is disposed on the fixing frame 211, the plurality of locking holes (the first fixing structures 21121) of the fixing frame 211 can be disposed opposite to the plurality of locking holes (the second fixing structures 2131) of the supporting member 213, and the plurality of screws can be locked in the plurality of locking holes disposed opposite to each other, so that the supporting member 213 and the fixing frame 211 are fixed to each other.

Since the inner diameter of each first fixing structure 21121 is greater than the inner diameter of each second fixing structure 2131, when the related assembling personnel assemble the abutting member 213 on the fixing frame 211, the assembling personnel may not lock the screws, but only connect the abutting member 213 and the fixing frame 211, at this time, the assembling personnel may move the abutting member 213 back and forth relative to the fixing frame 211 in a direction approaching or departing from the printing head module 212 according to the requirement, or the assembling personnel may rotate the abutting member 213 relative to the fixing frame 211, so as to change the posture of the abutting member 213 relative to the fixing frame 211. After the assembling personnel adjusts the posture of the abutting member 213 relative to the fixing frame 211, the assembling personnel can lock the screws, so that the abutting member 213 is fixed to the fixing frame 211 in the adjusted posture of the assembling personnel.

As shown in fig. 7, 10 and 11, in order to facilitate the assembling personnel to adjust the posture of the abutting member 213 with respect to the fixing frame 211, the abutting member 213 may further include a limiting structure 2132. In detail, the propping element 213 may include a body 213A and the limiting structure 2132. Two opposite wide side surfaces of the body 213A are respectively defined as a top surface 213B and a bottom surface 213C, the top surface 213B of the body 213A protrudes to form the limiting structure 2132, the bottom surface 213C of the body 213A is used for pressing and guiding the medium to be printed or the carbon ribbon, and at least a portion of the bottom surface may be in an arc shape.

As shown in fig. 7 and fig. 11, the fixing frame 211 may have a groove 211A corresponding to the limiting structure 2132 of the propping element 213. The recess 211A is used for accommodating the limiting structure 2132, and the width W1 of the limiting structure 2132 is smaller than the width W2 of the recess 211A. When the plurality of fasteners 215 do not completely fix the supporting member 213 and the fixing frame 211, the limiting structure 2132 is correspondingly disposed in the recess 211A, and the limiting structure 2132 can move in the recess 211A, and the limiting structure 2132 and the recess 211A can limit a moving range of the supporting member 213 moving in a direction away from or close to the print head module 212 with respect to the fixing frame 211.

In practice, as shown in FIG. 12, when the circuit board 2122 is fixed to the heat slug 2121 due to manufacturing and assembly tolerances, a narrow side 2122A of the circuit board 2122 is not flush with a narrow side 2121A of the heat slug 2121, and the narrow side 2122A of the circuit board 2122 and the bottom 21212 of the heat slug together form a notch C.

As shown in fig. 10 to fig. 12, a narrow side surface 213D of the body 213A of the abutting member 213 may also be protruded to form a protruded structure 2133, and two opposite sides of the narrow side surface 213D are respectively connected to the top surface 213B and the bottom surface 213C. As shown in fig. 11, when the abutting member 213 is fixed to the locking member 215, the narrow side surface 213D faces one side of the heat dissipating block 2121, and at least a portion of the protruding structure 2133 is located in the notch C, so that the protruding structure 2133 can greatly reduce the gap between the abutting member 213 and the print head module 212, and the printer 100 can have better printing quality.

More specifically, during the process of printing the predetermined pattern on the medium to be printed by the printer 100, the medium to be printed is moved from the print head module 212 to the abutting member 213 to leave the printer 100. Generally, before printing a predetermined pattern on a medium to be printed, the printer 100 generally moves the medium to be printed forward and backward to perform a calibration operation. When the printer 100 performs the calibration operation, if the size of the notch C is relatively large, the front edge of the medium to be printed may fall into the notch C, and if the front edge of the medium to be printed falls into the notch C, the medium to be printed may be squeezed, and the paper jam may not be printed, and the like, and even if the medium to be printed falls into the notch C and is driven to move out of the notch C, the medium to be printed may deviate from the originally default position, and the printer 100 may not correctly print the predetermined pattern on the predetermined position of the medium to be printed. In short, when the size of the notch C is relatively large, the printer 100 is prone to unexpected problems, which may affect the printing quality and cause paper jam.

Therefore, the above-mentioned abutting member 213 of the embodiment, through the design of the protruding structure 2133, when the user installs the abutting member 213, the user can adjust the position of the abutting member 213 relative to the fixing frame 211, so as to fill at least a part of the gaps C with the protruding structure 2133, thereby greatly improving the various unpredictable problems when the printer 100 performs the calibration operation on the medium to be printed.

It is particularly emphasized that, in the embodiment where the abutting member 213 does not have the protruding structure 2133, the assembling personnel can still adjust the posture of the abutting member 213 to enable the abutting member 213 to be disposed close to the print head module 212, so that a gap is prevented from being additionally formed between the abutting member 213 and the print head module 212 except for the gap C, and thus, the probability of unexpected problems caused by the fact that the front edge of the medium to be printed falls into the gap C can also be greatly reduced.

As shown in fig. 6, 7 and 13, the print head protection cover 214 can be pivotally fixed to the fixing frame 211, and when the print head protection cover 214 is fixed to the fixing frame 211, the print head protection cover 214 can rotate relative to the fixing frame 211 to a limited extent. One side of the printhead protection cover 214 may have a supporting section 2141 and two guiding sections 2142, the supporting section 2141 is located between the two guiding sections 2142, the two guiding sections 2142 may be inclined planes, and the supporting section 2141 may be a circular arc section. As shown in fig. 13, in a side view of the print head set 21, the outer edge of the print head protection cover 214 opposite to the fixing frame 211 is substantially V-shaped, and the abutting section 2141 is used for abutting and guiding the medium to be printed. In practical applications, the shapes of the abutting section 2141 and the two guiding sections 2142 can be changed to change the angle at which the medium to be printed enters the print head module 212; in addition, in the embodiment where the printer 100 is provided with the thermal transfer ribbon, by changing the shapes of the abutting section 2141 and the two guiding sections 2142, the angle at which the thermal transfer ribbon enters the printhead module 212 can also be changed.

Referring to fig. 14 and 15 together, fig. 14 is a schematic side view of another embodiment of the capping mechanism of the printer of the present invention, and fig. 15 is a schematic partially enlarged view of another embodiment of the capping mechanism of the printer of the present invention. In the embodiment of the printer 100 with the thermal ribbon R disposed therein, the thermal ribbon R bypasses the print head assembly 21, and when the printer 100 is in operation, a portion of the thermal dots in the heating unit of the print head module 212 heats a portion of the thermal ribbon R, so as to transfer the ink on the thermal ribbon to the medium to be printed. When the thermal transfer ribbon R passes around the print head assembly 21, a partial section of the thermal transfer ribbon R is abutted by the abutting section 2141 of the print head protection cover 214 and the bottom surface 213C of the abutting member 213, and an included angle θ between the thermal transfer ribbon R and a horizontal line is an acute angle in a side view of the thermal transfer ribbon R. In a specific application, the related assembler may change the angle of the included angle θ by adjusting the abutting member 213, so that the printer 100 can better print the predetermined pattern on the medium material to be printed and the label paper with different thicknesses.

More specifically, when the related assembling personnel assemble the abutting member 213 on the fixing frame 211, the assembling personnel may not lock the screw first, but only connect the abutting member 213 and the fixing frame 211, and at this time, the assembling personnel may rotate the abutting member 213 relative to the fixing frame 211 according to the requirement, so as to change the posture of the abutting member 213 relative to the fixing frame 211, and thus, the included angle θ may be changed.

In particular, the print head set 21 may be manufactured and sold separately, but the print head set 21 is not limited to be manufactured and sold as one printer 100 together with the upper cover body 20 and the base mechanism 1. In addition, the fixing frame 211 and the propping member 213 can be manufactured and sold as a print head fixing component.

The above only is the feasible embodiment of preferred of the utility model, therefore not limit the patent scope of the utility model, the event holds the application the equivalent technical change that the content of the description and the attached drawing was done all contains in the protection scope of the utility model.

Claims

1. A printer, characterized in that the printer comprises:

an upper cover mechanism, it includes an upper cover body and a printing head external member, the printing head external member includes:

the fixing frame is fixedly arranged on the upper cover body and comprises a plurality of first fixing structures;

the printing head module is fixedly arranged on the fixed frame and used for printing a preset pattern on a medium material to be printed; and

the abutting part is detachably and fixedly arranged on the fixing frame through the plurality of second fixing structures, the plurality of first fixing structures and the plurality of locking parts, and the plurality of second fixing structures, the plurality of first fixing structures and the plurality of locking parts can be mutually matched to enable the abutting part to be fixed on the fixing frame in at least more than two postures;

and the base mechanism is connected with the upper cover mechanism, and the upper cover mechanism is arranged above the base mechanism.

2. The printer according to claim 1, wherein said holder includes a top plate and two side plates, said printhead module is fixedly disposed on a wide side of said top plate, said two side plates are formed by extending opposite sides of said top plate away from said wide side, and said two side plates are disposed opposite to each other; each side plate is provided with two first fixing structures, and each first fixing structure is a lock hole; two opposite ends of the abutting piece are respectively provided with two second fixing structures, and each second fixing structure is a lock hole; the inner diameter of each first fixing structure is larger than that of each second fixing structure; each locking piece is a screw; the supporting part comprises a body, two opposite wide side surfaces of the body are respectively defined as a top surface and a bottom surface, the body protrudes from the top surface to form a limiting structure, and the fixing frame is provided with a groove; the groove is used for accommodating the limiting structure.

3. The printer according to claim 1, wherein said holder includes a top plate and two side plates, said printhead module is fixedly disposed on a wide side of said top plate, said two side plates are formed by extending opposite sides of said top plate away from said wide side, and said two side plates are disposed opposite to each other; each side plate is provided with at least one first fixing structure, and each first fixing structure is a lock hole; two opposite ends of the abutting piece are respectively provided with at least one second fixing structure, and each second fixing structure is a lock hole; the inner diameter of each first fixing structure is larger than that of each second fixing structure; each locking piece is a screw.

4. The printer according to claim 1, wherein the printhead module comprises a heat sink, a circuit board, and a heating element, wherein two opposite wide sides of the heat sink are respectively defined as a top surface of the heat sink and a bottom surface of the heat sink, the top surface of the heat sink is provided with a plurality of locking holes, the heat sink is capable of being locked to the fixing frame by a plurality of screws, and the bottom surface of the heat sink is provided with the circuit board; a narrow side surface of the circuit board is not flush with a narrow side surface of the adjacent circuit board, and the narrow side surface of the circuit board and the top surface of the heat dissipation block together form a gap; the heating component is fixed on the circuit board; a protruding structure is formed by protruding a narrow side face of the body, and two opposite side edges of the narrow side face are respectively connected with the top face and the bottom face; at least one part of the protruding structure is correspondingly positioned in the notch.

5. A printhead assembly for mounting in a printer, the printhead assembly comprising:

a fixing frame, which comprises a plurality of first fixing structures;

and in the process that the printer prints the preset pattern on the medium material to be printed, the medium material to be printed moves towards the propping piece from the printing head module.

6. The printhead assembly of claim 5, wherein the holder includes a top plate and two side plates, the printhead module is fixedly disposed on a wide side of the top plate, the two side plates are formed by extending opposite sides of the top plate away from the wide side, and the two side plates are disposed opposite to each other; each side plate is provided with two first fixing structures, and each first fixing structure is a lock hole; two opposite ends of the abutting piece are respectively provided with two second fixing structures, and each second fixing structure is a lock hole; the inner diameter of each first fixing structure is larger than that of each second fixing structure; each locking piece is a screw; the supporting part comprises a body, two opposite wide side surfaces of the body are respectively defined as a top surface and a bottom surface, the body protrudes from the top surface to form a limiting structure, and the fixing frame is provided with a groove; the groove is used for accommodating the limiting structure.

7. The printhead assembly of claim 5, wherein the holder includes a top plate and two side plates, the printhead module is fixedly disposed on a wide side of the top plate, the two side plates are formed by extending opposite sides of the top plate away from the wide side, and the two side plates are disposed opposite to each other; each side plate is provided with at least one first fixing structure, and each first fixing structure is a lock hole; two opposite ends of the abutting piece are respectively provided with at least one second fixing structure, and each second fixing structure is a lock hole; the inner diameter of each first fixing structure is larger than that of each second fixing structure; each locking piece is a screw.

8. The printhead module according to claim 6, wherein the printhead module includes a heat sink, a circuit board, and a heating element, the opposite wide sides of the heat sink are respectively defined as a top surface of the heat sink and a bottom surface of the heat sink, the top surface of the heat sink is provided with a plurality of locking holes, the heat sink is capable of being locked to the holder by a plurality of screws, and the bottom surface of the heat sink is provided with the circuit board; a narrow side surface of the circuit board is not flush with a narrow side surface of the adjacent circuit board, and the narrow side surface of the circuit board, the top surface of the heat dissipation block and the narrow side surface of the heat dissipation block form a gap together; the heating component is fixed on the circuit board; a protruding structure is formed by protruding a narrow side face of the body, and two opposite side edges of the narrow side face are respectively connected with the top face and the bottom face; at least one part of the protruding structure is correspondingly positioned in the notch.

9. A printhead mounting assembly for mounting a printhead module in a printer, the printhead mounting assembly comprising:

a holder, comprising:

a top plate, one wide side of which is used for arranging the lettering head module;

the two side plates are formed by extending two opposite side edges of the top plate in the direction away from the wide side surface, and the two side plates are arranged in a manner of facing each other;

the first fixing structures are lock holes, two first fixing structures are formed on one side plate, and the other two first fixing structures are formed on the other side plate;

the two opposite ends of the abutting piece are respectively provided with a plurality of second fixing structures, and each second fixing structure is a lock hole; the abutting piece is detachably and fixedly arranged on the fixing frame through the plurality of second fixing structures, the four first fixing structures and the plurality of locking pieces, and the plurality of second fixing structures, the four first fixing structures and the plurality of locking pieces can be mutually matched to enable the abutting piece to be fixed on the fixing frame in at least more than two postures;

the printing head module is fixed on the fixing frame, the printing head fixing component is arranged in the printer, and in the process that the printer prints a preset pattern on a medium material to be printed, the medium material to be printed moves from the printing head module to the direction of the abutting piece.

10. The printhead fixing assembly of claim 9, wherein the abutting member includes a body, two opposite wide side surfaces of the body define a top surface and a bottom surface, respectively, the body protrudes from the top surface to form a limiting structure, and the fixing frame has a groove; the groove is used for accommodating the limiting structure; wherein, a protruding structure is formed by protruding a narrow side surface of the body, and two opposite side edges of the narrow side surface are respectively connected with the top surface and the bottom surface; at least one part of the protruding structure can be correspondingly positioned in a notch of the printing head module.