CN212636937U - Printer capable of being used for various paper widths - Google Patents

Abstract

The utility model relates to a printer capable of being used for various paper widths, which comprises a main body and an upper cover body, wherein a lower cavity for placing printing paper is arranged on the main body, and a paper width adjusting mechanism is arranged on the lower cavity; be equipped with carriage release lever and sliding tray down on the cavity, adjustment mechanism locates on the carriage release lever to can follow carriage release lever and sliding tray and remove in order to adapt to the wide printing paper of different paper, the utility model discloses an adjustment mechanism can adapt to the printing paper of multiple width, and convenience of customers uses.

Description

Printer capable of being used for various paper widths

Technical Field

The utility model relates to a thermal printer technical field particularly, relates to a printer that can be used to multiple paper width.

Background

At present, the micro printer is generally a paper bin with a fixed paper width, but the paper width required to be printed in daily life is various, so that inconvenience is brought to life of people, and a plurality of printers with various models are required to be prepared sometimes. For example, patent "a mini printer with stable opening and closing cover", patent publication No. CN106827834A, discloses the main techniques as follows: a micro printer with a stable opening and closing cover comprises a shell body and an upper cover, wherein the upper cover is buckled on the shell body, and the top surface of the shell body and the bottom surface of the upper cover are matched surfaces; the bottom surface of the upper cover is provided with a buckling piece protruding towards the shell main body, the shell main body is correspondingly provided with a clamping groove, and the buckling piece is buckled with the clamping groove; an elastic convex point is arranged in the clamping groove and abuts against the buckling piece towards the buckling point; the upper cover can be pushed forwards and backwards relative to the shell body, when the upper cover is opened, the upper cover is pushed, the elastic salient points are separated from abutting against the buckling pieces, and the buckling pieces are separated from being matched with the clamping grooves.

In addition, some large-scale printing equipment is also added with a paper width adjusting mechanism, but the paper width adjusting mechanism is relatively complex and has various parts; there is also a mode of adding a card by using a gear, but the mode has poor stability and is inconvenient to operate when the printing paper is fixed.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a can be used to the wide printer of multiple paper, simple structure solves same printer can be applicable to the wide problem of different paper.

The utility model adopts the following scheme:

a printer capable of being used for various paper widths comprises a main body and an upper cover body, wherein a lower cavity for placing printing paper is arranged on the main body, and a paper width adjusting mechanism is arranged on the lower cavity; be equipped with carriage release lever and sliding tray down on the cavity, adjustment mechanism locates on the carriage release lever to can follow carriage release lever and sliding tray and remove in order to adapt to the printing paper of different paper widths.

As a further improvement, the adjusting mechanism comprises a baffle and a control rod, the baffle is arranged on the moving rod and can move left and right along the moving rod, and the control rod locks the baffle and enables the baffle to be fixed on the moving rod.

As a further improvement, the baffle is provided with a control rod mounting groove, and the control rod is arranged in the mounting groove and is pivoted on the movable rod.

As a further improvement, a limiting block is arranged in the mounting groove, and when the control rod swings downwards to lock the stop piece, the control rod is prevented from swinging back.

As a further improvement, two inclined grooves are arranged in the mounting groove, and a bulge matched with the two grooves is arranged on the control rod.

As a further improvement, when the control rod rotates around the moving rod and swings downwards, the control rod is pressed against the wall of the mounting groove in an interference fit manner so as to fix the baffle on the moving rod.

As a further improvement, the baffle extends along the direction of the moving rod to form a reinforcing part, and the reinforcing part is matched with the moving rod.

As a further improvement, a limiting block is arranged on the limiting groove to limit the movement of the baffle sheet so as to form a printing paper placing cavity with the minimum paper width.

As a further improvement, an upper cavity for accommodating printing paper is arranged on the upper cover body, a step for accommodating the adjusting mechanism is arranged on the side edge of the upper cavity, and a wire guide groove for a wire to pass through is arranged on the back of the step.

As a further improvement, the main body and the upper cover body are covered to form a prism body with at least four prisms, the output port and the pivot shaft are respectively positioned on two nonadjacent prisms, and the joint surface of the output port and the pivot shaft is positioned between the two nonadjacent prism bodies and cuts the printer along the prism direction; the main part with the upper cover body is triangle-shaped in the first direction, and this printer is being close to delivery outlet department is equipped with the print roller, the print roller extremely the slope is provided with motor and the reduction gear group that drive the print roller rotation between the paper storehouse bottom.

By adopting the technical scheme, the utility model discloses can gain following technological effect:

1. the utility model discloses a be equipped with carriage release lever and sliding tray on the cavity down, adjustment mechanism locates on the carriage release lever to can follow the mode that carriage release lever and sliding tray removed and adapt to the wide printing paper of different papers, adjust the back like this and beat printing paper and stabilize fixedly, easy operation simultaneously.

2. The utility model discloses a washer directly locks the carriage release lever with control lever interference fit's mode to the regulation that beats the printing paper width in paper storehouse has been realized fixed, simple structure.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic structural diagram of a first directional projection according to the present invention;

fig. 3 is a schematic structural view of the utility model after the upper cover body is turned over;

fig. 4 is an exploded view of the upper cover of the present invention;

fig. 5 is an exploded view of the upper bracket of the present invention;

fig. 6 is a schematic structural view of a first viewing angle of the upper bracket of the present invention;

fig. 7 is an exploded view of the upper bracket according to the present invention;

fig. 8 is an exploded view of the main body of the present invention;

figure 9 is a schematic cross-sectional view a-a of figure 2 according to the present invention;

fig. 10 is a first perspective structural view of the main body of the present invention;

FIG. 11 is a schematic cross-sectional view of the adjustment mechanism of FIG. 10B-B in accordance with the present invention shown in the locked position;

figure 12 is a schematic cross-sectional view of the adjustment mechanism of figure 10B-B of the present invention shown unlocked;

icon: 1. a main body; 2. an upper cover body; 3. an output port; 4. a button; 5. a paper bin; 6. an adjustment mechanism; 7. a thermal head; 8. a print roller; 9. a cutter; 11. a base; 12. a lower housing; 13. a V-shaped decorative piece; 21. an upper bracket; 22. an upper housing; 23. a decorative member; 51. an upper cavity; 52. a lower cavity; 61. a travel bar; 62. a baffle plate; 63. a control lever; 71. a support portion; 72. an elastic member; 91. A fixing hole; 92. a square hole; 100. a pivot shaft; 101. a transmitting unit; 102. a receiving unit; 103. A connecting shaft; 111. a battery; 112. a motor; 113. a reduction gear set; 114. a hinge portion; 200. A diagonal line; 211. a separator plate; 212. a reinforcing strip; 213. a control circuit board; 214. a hinged tube; 215. an accommodating chamber; 216. a wire guide groove; 521. a sliding groove; 522. a fixed block; 621. mounting grooves; 622. a limiting block; 623. a groove; 624. an inner wall; 625 a reinforcing part; 631. a protrusion; 1141. a hole of abdication; 2111. fixing a column; 2112. positioning blocks; 2121. a projection; 2141. a wire hole; 2151. A limiting groove; 2152. a stop bar; 2153. and (6) mounting the column.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more 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; either directly or indirectly through intervening media, either internally or in any other relationship. 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 present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Examples

The first direction in the utility model is the X direction and the-X direction in the attached drawing, the second direction is the Y direction and the-Y direction in the attached drawing, and the third direction is the Z direction and the-Z direction in the attached drawing.

The structure and function of the solution of the present application will now be described in detail with reference to fig. 1 to 12.

With reference to fig. 1 to 3, the present embodiment provides a printer, which includes a main body 1 and an upper cover 2, wherein the upper cover 2 is pivotally connected to the main body 1 and can rotate around a pivot shaft 100 to open or close the printer, the main body 1 and the upper cover 2 cover a paper compartment 5 for storing printing paper and a printing paper output port 3, and a printing roller 8 and a thermal head 7 are disposed at a position close to the output port 3. As shown in fig. 1 and 2, the main body 1 and the upper cover 2 are covered to form a prism with four prisms, and the joint surface formed by covering the main body 1 and the upper cover 2 is located between two opposite prisms and cuts the printer along the prism direction. The printer also comprises a control button 4, the control button 4 and the pivot shaft 100 are arranged on one of the two prisms, and a printing paper output port 3 is arranged on the other prism. The pivot shaft 100 passes through the control button 4. The printer is provided with a pivot shaft 100, a paper bin 5 for containing printing paper, a paper feeding channel, a printing area formed by oppositely arranging a thermal head 7 and a printing roller 8 and a printing paper output port 3 along a combining surface in sequence. In this embodiment, a quadrangular prism is preferred, and the concept of the present invention may be applied to other prisms, such as a pentagonal prism, where the junction surface of the quadrangular prism passes through two non-adjacent prisms.

As shown in fig. 2, the main body 1 and the upper cover 2 are triangular in the first direction, and one of the preferred embodiments of the present invention is triangular with right angles, and the right angles have circular chamfer angles to prevent sharp edges and easy scratching. The main body 1 and the upper cover 2 are covered and projected in a substantially square shape in a first direction, the two prisms are connected in the first direction to form a diagonal line 200, and the pivot shaft 100 and the printing paper output port 3 are respectively located at both ends of the diagonal line 200, that is, on the two prisms. The printer is a regular body or an approximate cube as a whole. In this embodiment, the whole printer is in a cube shape, most of the joint surface of the main body 1 and the upper cover 2 after being covered is overlapped with the diagonal line 200, and the paper bin 5 is close to the pivot shaft 100, so that the front end space of the printer can be effectively utilized to arrange other functional components. Due to the adoption of the shape and the structural layout of the printer, the volume of the paper bin can be increased to 40-70% of the volume of the printer. Therefore, the printing paper amount placed in the paper bin can be maximized.

Referring to fig. 4, the upper cover 2 includes an upper bracket 21, an upper case 22 for wrapping the upper bracket 21, and a decoration 23 for decorating the upper case 22. The shape of the upper bracket 21 is similar to a bucket, the projection of the middle end of the thermal head 7 in the first direction is arranged at the front end of the upper bracket and is in a semicircular arc shape, the upper cavity 51 for placing printing paper is used for matching and installing a winding drum with the printing paper, and the projection of the rear end in the first direction is in a cylindrical shape and is used as a hinged pipe 214 for connecting the printer main body 1 and the upper cover body 2. The projection of the upper casing 22 in the first direction is approximately triangular, and the top is a right angle with a circular arc chamfer, the upper bracket 21 can be completely accommodated in the upper casing 22, the front end of the upper casing 22 is provided with a square opening for printing paper output port 3, and the rear end of the upper casing 22 is a circular arc chamfer to match the hinged pipe 214 of the upper bracket 21, and the upper cover 2 can have a sufficient opening angle to facilitate installation of a roll of printing paper without mutual interference with the main body 1. The projection of decoration 23 on the first direction is the V type in order to match the two right-angle sides of casing 22, and decoration 23 can select different colours according to different hobbies for use, makes the appearance of printer more pleasing to the eye, and can select different materials such as metal film material in order to increase the intensity of printer, prevents that the printer from crushing easily because the size is small and exquisite.

Referring to fig. 1 and 3, after the main body 1 and the upper cover 2 are closed, a projection in the first direction is substantially square, the pivot shaft 100 is disposed on the center of the hinge pipe 214 at the end of the substantially square diagonal line 200 and extends in the first direction, the printer is further provided with the control button 4, the control button 4 is disposed on the side surface of the printer, and the pivot shaft 100 is perpendicular to the side surface and passes through the control button 4, so that the length of the electrical connection path between the control button 4 and the upper cover 2 or the main body 1 and the wire material can be reduced, and the assembly is easier. The output port 3 of the printer is arranged on the other end part of the diagonal line 200 and is parallel to the pivot shaft 100, so that the output port 3 of the printer is divided into an upper part and a lower part when the main body 1 and the upper cover body 2 are opened so as to facilitate the installation of printing paper, and the front end of the printing paper is stretched to the output port 3 of the printing paper.

Referring to fig. 4 and 5, when the upper frame 21 is disposed in the upper housing 22, since the upper cavity 51 is disposed at the rear end of the upper frame 21, after the upper frame 21 is matched with the upper housing 22, the front end of the upper frame has a certain space for placing other components, so that the printer has a smaller size and is convenient to carry. An upper cavity 51 forming the paper bin 5, namely, a middle-end semicircular arc shape of the upper support 21, is arranged on one side of the upper cover body 2 close to the pivot shaft 100, a control circuit board 213 is arranged on the back surface of the upper cavity 51, support columns are arranged on the upper support 21 on the back surface of the upper cavity 51 to fix the control circuit board 213, preferably, four support columns are arranged to respectively fix the periphery of the control circuit board 213, the control circuit board 213 is arranged in parallel with the opposite surface of the upper shell 22 at the angle of downward inclination of the arc surface, the support columns at the arc top are longer, and the support columns at the arc bottom are shorter, so that the control circuit board 213 is arranged in an inclined manner along the top of the upper cavity 51 to the output port 3 to compactly and reasonably utilize the inner space of the upper cover body. The control circuit board 213 is electrically connected to the control button 4, and the control circuit board 213 is controlled by the control button 4 to turn on or off the printer.

Referring to fig. 5 and 6, connecting arms extending forward on both sides of the front end of the upper frame 21 are provided with a partition plate 211, so that the partition plate 211 and the upper frame 21 form a receiving cavity 215 for mounting the thermal head 7 on the inner side, and a cutter 9 is fixed on the outer side of the partition plate 211 for cutting and separating the printed printing paper from the printer. The partition plate 211 separates the thermal head 7 and the cutter 9 to prevent static electricity on the cutter 9 from affecting the printing quality of the thermal head 7 on the printing paper. It can be understood that the cutter 9 is basically made of a metal material, and the front end of the cutter 9 is exposed to air for a long time, and static electricity is easily accumulated during use. If the partition board 211 is not arranged between the cutter 9 and the thermal head 7, the cutter 9 is easy to generate static electricity to influence the printing quality of the thermal head 7 on printing paper, and the thermal head 7 is arranged in the accommodating cavity 215, so that the static electricity on the cutter 9 can be reduced to be transmitted to the thermal head 7, and the printing quality is improved. In this embodiment, it is preferable that the isolation plate 211 and the upper bracket 21 are integrally formed by a resin material, preferably, an insulating resin material.

A positioning block 2112 and a fixing column 2111 are arranged on one side of the upper shell 22 above the isolation plate 211, and a square hole 92 matched with the positioning block 2112 is arranged on the cutter 9 to limit the left and right movement of the cutter 9 when cutting printing paper, so that the paper cutter is convenient to use. The cutter 9 is fixed on the isolation board 211 through the fixing column 2111 in a hot melting mode, the interior of the printer is generally formed by plastic injection, the isolation board 211 is also formed by plastic injection, the thickness of the cutter 9 is thinner, a plurality of fixing holes 91 are formed in the cutter 9, the fixing columns 2111 are melted on the fixing holes 91 through the hot melting mode, the cutter 9 is fixed on the isolation board 211, the cutter 9 and the isolation board 211 are integrated, and the cutter 9 is prevented from falling off due to vibration of a thermal head 7 in the printing process. Of course, other fastening means such as screws may be used. The partition 211 is close to the output port 3, which enables the serrated end of the cutter 9 to protrude out of the output port 3 to cut and separate printed printing paper. A stopper 2152 for preventing the printing paper from entering the housing chamber 215 when the printing paper is retracted is provided on the side of the partition plate 211 facing the housing chamber 215 of the thermal head 7. Specifically, because thermal head 7 can vibrate from top to bottom at the printing in-process, consequently thermal head 7 installs the front end that holds in chamber 215 and can not butt division board 211, and have the gap between division board 211, after printing paper printing has been finished cutting the separation back through cutter 9 like this, the foremost end of printing paper can beat printing paper delivery outlet 3 parallel and level, because beat printing paper and cut and be the pull-up, beat printing paper and roll back in-process front end and can upwards curl up, make easily beat printing paper front end and get into from the gap and hold chamber 215, and set up shelves strip 2152 on division board 211, beat printing paper after having prevented to print once more and roll up the possibility that holds chamber 215, thereby prevent the card paper jam. Preferably, there are a minimum of 4 bars 2152, and the bars 2152 are spaced apart, so that there are multiple supporting points when the printing paper is retracted, which can greatly reduce the possibility that the printing paper enters the accommodating chamber 215 when the printing paper is retracted, and thus cause a paper jam.

Referring to fig. 5 and 7, a limit groove 2151 is formed in the printing paper accommodating chamber 215, support portions 71 matched with the limit groove 2151 are formed at both ends of the thermal head 7, and the front and rear movement of the thermal head 7 is limited by the cooperation of the limit groove 2151 and the support portions 71. An elastic member 72 is arranged between the isolation plate 211 and the thermal head 7, a mounting post 2153 is arranged on the isolation plate 211, and the elastic member 72 is mounted in the mounting post 2153 to provide downward pressure for the thermal head 7, so that the thermal head 7 and the printing roller 8 clamp printing paper to print pictures. A reinforcing strip 212 for increasing the strength of the front end of the upper support 21 is arranged in the accommodating cavity 215, and preferably, the reinforcing strip 212 is made of hard metal material, so that the influence on the output of printing paper due to the change of the height of the paper feeding channel caused by the deformation of the front end of the upper support 21 caused by the heating of the thermal head 7 is prevented. The reinforcing bar 212 is further provided with a projection 2121 which abuts against the rear end of the thermal head 7, so that the thermal head 7 is balanced in the abutment of the elastic member 72 and the projection 2121, and the thermal head 7 is prevented from tilting back and forth.

Referring to fig. 8, the main body 1 includes a base 11 and a lower case 12, and has a triangular shape in a first direction similarly to the upper frame 21 and the upper case 22, and a V-shaped garnish 13 is also provided outside the lower case 12. One side of the base 11 close to the pivot shaft 100 is provided with a lower cavity 52 of the paper bin 5, the back of the lower cavity 52 is sequentially provided with a battery 111, a motor 112 and a reduction gear set 113 from high to far away from the pivot shaft 100, the length of the printer extending forwards can be reduced by the inclined arrangement, the size of the printer is favorably reduced, and the printer is more compact in structure and more convenient to carry. The printing roller 8 is fixed on the base 11 near the output port 3, the printing roller 8 is connected with the reduction gear set 113, the reduction gear set 113 is driven to rotate by the motor 112 so as to drive the rotation of the printing roller 8, and the printing is carried out by the rotation of the printing roller 8 and the clamping of the thermal head 7 so as to convey the printing paper forwards. Two hinge parts 114 are provided on the base 11, the hinge parts 114 and the hinge pipe 214 of the upper frame 21 are coaxially provided with the pivot shaft 100 and rotatably connected together through the connecting shaft 103, and the hinge pipe 214 is connected together with the hinge parts 114 at both sides through the connecting shaft 103 so that the main body 1 and the upper cover 2 can rotate along the pivot shaft 100. The connecting shaft 103 is a hollow shaft, and the middle part of the connecting shaft can allow a conductive wire body to pass through.

Referring to fig. 8 and 9, the hinge tube 214, the hinge portion 114 and the connecting shaft 103 are all hollow, so that the electric wire can pass through the hinge tube 214, the hinge portion 114 and the connecting shaft 103, in order to make the main body 1 and the cover have a threading path and not expose the electric wire for enhancing the appearance, the hinge portion 114 of the base 11 is provided with an abdicating hole 1141 for passing the electric wire through the connecting motor 112, and the abdicating hole 1141 is provided on the other side opposite to the control button 4, so that the limited internal space of the printer can be more reasonably arranged and utilized. A wire hole 2141 for passing a wire is formed in the middle of the hinge pipe 214 so that the control circuit board 213 of the upper cover 2 and the control button 4 can be electrically connected together to control the printer.

Specifically, the electric wire connected to the motor 112 on the base 11 is electrically connected to the control circuit board 213 through the abdicating hole 1141 to control the opening of the printer, and the electric wire connected to the control circuit board 213 of the upper cover 2 is connected to the control button 4 through the electric wire hole 2141 and the connecting shaft 103 to transmit the control information to the control circuit board 213 to start printing.

Referring to fig. 3, 6 and 10, after the main body 1 and the upper cover 2 are closed, a paper bin 5 for storing printing paper, a paper feeding channel for the printing paper, a printing area formed by oppositely arranging the thermal head 7 and the printing roller 8, and a printing paper output port 3 are sequentially formed, wherein the paper feeding channel is directly formed by the upper surface of the main body 1 and the lower surface of the upper cover 2 and is used for connecting the paper bin 5 with the printing area, and the length of the paper feeding channel can be reduced by obliquely arranging a circuit control board in the upper cover 2 and a battery 111, a motor 112 and a reduction gear set 113 in the main body 1, generally, the length of the paper feeding channel can be smaller than 3.0cm, so that the problems of paper jam, paper inclination or slow transmission speed possibly caused by overlong printing paper feeding channel can be reduced, and the printing quality can be improved.

A detection device for detecting the information of the printing paper is arranged on the paper feeding channel, the detection device comprises a transmitting unit 101 and a receiving unit 102, one of the transmitting unit 101 and the receiving unit 102 is arranged on the main body 1, the other is arranged on the upper cover body 2, the transmitting unit 101 transmits the information to the receiving unit 102 when detecting that the printing paper passes through the paper feeding channel, and the receiving unit 102 provides the information to the control circuit board 213 after receiving the information.

Referring to fig. 10, a paper width adjusting mechanism 6, a moving bar 61, and a sliding slot 521 are provided on the lower chamber 52, and the paper width adjusting mechanism 6 is provided on the moving bar 61 and is movable along the moving bar 61 and the sliding slot 521 to accommodate printing paper of different paper widths. The movable rod 61 traverses the entire width of the lower cavity 52 and is fixed on both sides of the lower cavity 52, the lower end of the sliding groove 521 is a circular arc-shaped curved surface, and the upper end is a linear plane, so that the lower end can better slide when the paper width adjusting mechanism 6 is unlocked, and the upper end can be better limited when the paper width adjusting mechanism 6 is locked.

The adjusting mechanism 6 comprises a blocking piece 62 and a control rod 63, the blocking piece 62 is arranged on the moving rod 61 and can move left and right along the moving rod 61, specifically, a through hole for the moving rod 61 to pass through is arranged at the front end of the blocking piece 62, the blocking piece 62 is sleeved on the moving rod 61, the shape of the blocking piece 62 is consistent with that of the sliding groove 521, and the rear end of the blocking piece 62 is clamped in the sliding groove 521 and can move along a first direction when in use. The lower end of the baffle plate 62 is provided with an arc-shaped part matched with the lower cavity 52 so that the baffle plate 62 is tightly attached to the lower cavity 52. The stopper piece 62 is provided with a mounting groove 621 for the control lever 63, the control lever 63 is mounted in the mounting groove 621 and pivotally connected to the moving rod 61, and the stopper piece 62 is locked by the control lever 63 and fixed to the moving rod 61. Specifically, referring to fig. 11 and 12, a limiting block 622 is disposed in the mounting groove 621, when the control rod 63 swings downward, the control rod 63 contacts against an inner wall 624 of the mounting groove 621 in an interference fit manner to fix the stopper 62 on the moving rod 61, and simultaneously, the rear end of the stopper 62 contacts against the sliding groove 521 to limit the stopper 62 from moving in the second direction. In order to prevent the control rod 63 from swinging back, a stop block 622 is disposed in the mounting groove 621, and when the control rod 63 swings down to the locking stop piece 62, the stop block 622 just abuts against the side wall of the control rod 63 to prevent the control rod 63 from swinging back by rotating around the moving rod 61. When the control rod 63 swings upwards, the control rod 63 is in clearance fit with the inner wall 624 of the mounting groove 621, so that the moving rod 61 and the blocking piece 62 are unlocked, the blocking piece 62 can move along the moving rod 61, two inclined grooves 623 are further arranged in the mounting groove 621, the control rod 63 is provided with a protrusion 631 matched with the two grooves 623, the protrusion 631 is elastically connected to the control rod 63, the control rod 63 can rotate under the action of external force, otherwise, the protrusion 631 abuts against the side wall of the groove 623 to fix the control rod 63. The mode that moves along carriage release lever 61 and sliding tray 521 through adjustment mechanism 6 adapts to the printing paper of different paper widths, locks washer 62 by control lever 63 again, through washer 62 and control lever 63 interference fit's mode direct lock carriage release lever 61 to the regulation of the printing paper width of having realized paper storehouse 5 is fixed, and the back of adjusting is beaten printing paper stable fixed like this, easy operation simultaneously.

As shown in fig. 10, the stopper piece 62 is formed with a mounting groove 621 of the lever 63 so that a portion of the stopper piece 62 which contacts against the moving bar 61 in the interference fit is too small, and a reinforcing portion 625 is formed in the stopper piece 62 extending in the direction of the moving bar 61 in order to prevent looseness, and the reinforcing portion 625 has a curved surface which is fitted against the fixed moving bar 61 so that the reinforcing portion 625 completely contacts against the moving bar 61 when the lever 63 locks the stopper piece 62.

If the width of the printing paper width is too small, the width of the paper feeding path is not changed during the printing process, and the smaller the width of the printing paper is, the more easily the deviation occurs on the paper feeding path, so that errors can occur during printing, and the printing quality is affected, so that the minimum paper width needs to be set. The sliding groove 521 is provided with a fixing block 522 to limit the movement of the blocking piece 62 so as to form the printing paper bin 5 with a minimum paper width. The moving rod 61 and the upper surface of the lower cavity 52 form a limiting channel for limiting the printing paper to move in a mess, and the limiting channel is connected with the paper feeding channel so that the printing paper can be more smoothly transmitted towards the printing roller.

The step for accommodating the adjusting mechanism 6 is arranged on the side edge of the upper bracket 21, the back of the step is provided with a wire groove 216 through which a wire passes, so that the wire connected through the control button 4 or the main body 1 is arranged in the wire groove 216, the neatness of the wire is facilitated, and the wire can be prevented from being damaged due to the fact that the wire is easily rubbed with the upper shell 22 when being exposed on the side edge.

Above only the utility model discloses an it is preferred embodiment, the utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection.

Claims (10)

1. The utility model provides a printer that can be used to multiple paper width, includes main part and last lid, be equipped with the lower cavity of placing printing paper in the main part, be equipped with the wide adjustment mechanism of paper on the cavity down, its characterized in that, be equipped with carriage release lever and sliding tray on the cavity down, adjustment mechanism locates on the carriage release lever to can follow carriage release lever and sliding tray and remove in order to adapt to the wide printing paper of different paper.

2. The printer of claim 1, wherein said adjustment mechanism comprises a stop and a lever, said stop being disposed on said lever and being movable left and right along said lever, said lever locking said stop to be fixed to said lever.

3. The printer of claim 2, wherein the stop is provided with a mounting slot for the control rod, and the control rod is mounted in the mounting slot and pivotally connected to the movable rod.

4. The printer of claim 3, wherein a stop block is disposed in the mounting slot to prevent the lever from swinging back when the lever swings downward to lock the stopper.

5. A printer according to claim 3, wherein two inclined grooves are provided in the mounting slot, and a protrusion is provided on the lever for engaging with the two grooves.

6. The printer of claim 4, wherein when the lever swings downward around the moving rod, the lever contacts the wall of the mounting groove in an interference fit manner to fix the blocking piece on the moving rod.

7. A printer of claim 2, wherein said stop extends in the direction of said travel bar to form a reinforcement that fits said travel bar.

8. The printer of claim 7, wherein a fixing block is provided on the sliding slot to limit the movement of the blocking plate to form a printing paper placing chamber of a minimum paper width.

9. The printer of claim 1, wherein the upper cover has an upper cavity for receiving printing paper, the upper cavity has a step on its side for receiving the adjusting mechanism, and the step has a guide slot on its back for passing a guide wire.

10. The printer of claim 1, wherein the main body and the upper cover are covered to form a prism having at least four prisms, the output port and the pivot axis are respectively located on two non-adjacent prisms, and the combination surface of the output port and the pivot axis is located between the two non-adjacent prisms and cuts the printer along the prism direction; the main part with go up the lid and be triangle-shaped in the first direction, this printer is being close to delivery outlet department is equipped with the print roller, the slope is provided with motor and the reduction gear group that drive the print roller rotation between print roller to the paper storehouse bottom.

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