CN212920855U - Printer core frame and printer - Google Patents

Abstract

The utility model relates to a printer core frame, which comprises a base and a mounting frame consisting of an upper bracket and a lower bracket, wherein the base part is arranged in the mounting frame to form a printing component mounting cavity and a printing paper accommodating cavity; the printer further comprises a connecting frame arranged at the front end of the mounting frame and a gear plate arranged on the side edge of the mounting frame, wherein the connecting frame is used for connecting an outer shell of the printer; the mounting bracket also comprises a fixing plate positioned on the side edge of the mounting bracket, and the fixing plate is connected with the gear plate and the extending part of the connecting bracket to form a gear set mounting cavity. The utility model also provides a frivolous printer. The utility model discloses a structure is torn open and is optimized, makes each functional unit's installation deviation can not appear, and then influences the printer quality.

Description

Printer core frame and printer

Technical Field

The utility model relates to a printer technical field particularly, relates to a printer core frame and printer.

Background

The printer is required to be printed in work, when people go out, the printer needs to be designed to be as small as possible in order to be convenient to carry, and the micro printer is slowly popularized in our life. In order to achieve the lightness and thinness of the printer and maintain the supporting strength required by the functions, the common printer core is formed by punching a metal bracket. For example, a photo printer, patent publication No. CN107639941A, discloses the following main technologies: a photo printer for printing an image or a text by applying heat of a predetermined temperature to a paper sheet having a thermal-sensitive color expressed thereon, comprising: a substrate accommodating the paper; a pickup roller protruding from a bottom surface of the base plate to feed the accommodated paper forward; a paper pressing roller for discharging the paper supplied by the paper pickup roller forward; a head portion formed on an upper portion of the platen roller and configured to apply heat to the paper; a swing bracket having a mounting portion formed at a front side thereof to which the head portion is coupled, and a coupling portion formed at a rear side thereof to be rotatably coupled to the base plate so that the head portion swings; and a pressing member for pressing the head portion downward to be in close contact with the paper fed between the head portion and the platen roller. As can be seen from the description, the printer core frame of the above patent is mainly formed by stamping a metal plate to form a support seat, various functional components are mounted on the support seat, and the matching precision between the functional components is also high.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, optimize structural design, the utility model provides a following technical scheme, include:

a printer core frame comprises a base and a mounting frame consisting of an upper support and a lower support, wherein the base is partially arranged in the mounting frame to form a printing component mounting cavity and a printing paper accommodating cavity; the printer further comprises a connecting frame arranged at the front end of the mounting frame and a gear plate arranged on the side edge of the mounting frame, wherein the connecting frame is used for connecting an outer shell of the printer; the mounting bracket also comprises a fixing plate positioned on the side edge of the mounting bracket, and the fixing plate, the gear plate and the extending part of the connecting bracket jointly form a gear set mounting cavity.

As a further improvement, the upper bracket is rotatably arranged on the mounting bracket, and an adapter shaft thereof passes through the lower bracket and the fixing plate and is spaced from the base to form a printing paper feeding passage.

As a further improvement, the left side and the right side of the front end of the upper support are provided with elastic piece mounting frames, the corresponding positions of the fixing plate and the lower support are provided with elastic piece limiting parts, and the limiting parts penetrate through the mounting frames to fix the elastic pieces.

As a further improvement, the bottom of the mounting frame is provided with an upward bulge, and the bulge is used for fixing the elastic piece to prevent the elastic piece from falling off.

As a further improvement, the fixed plate and the lower bracket are both L-shaped, one side of the fixed plate is fixed with the lower bracket, and the other side of the fixed plate is fixed with the base.

As a further improvement, a positioning block is arranged on the fixing plate, a positioning groove is arranged on the lower support, and the fixing plate is fixed after positioning through the positioning block and the positioning groove.

As a further improvement, the fixed plate with the base forms the driving gear installation cavity, be equipped with motor, drive gear and driving gear on the fixed plate, the motor install in outside the driving gear installation cavity, drive gear and driving gear are installed in it, the driving gear is connected with the gear train and is rotatory in order to drive the print roller.

As a further improvement, the printer further comprises a paper feeding roller, wherein the paper feeding roller is arranged on the base and protrudes out of the bottom of the printing paper accommodating cavity so as to drive the printing paper to move towards the printing roller.

The utility model also provides a printer, including foretell printer core frame, still include base and upper cover, the base passes through the link with the printer core is connected fixedly.

As a further improvement, the base and the base jointly form a paper bin for storing printing paper, an upper cover is arranged on the paper bin, and a pressure piece for applying force to the printing paper is arranged on the upper cover.

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

1. the utility model discloses a rationally tear a spare one off core frame and locate the link of mounting bracket front end with locate the pinion rack of mounting bracket side to this required spatial position of installation and the required accuracy requirement of satisfying functional unit

2. In the novel core frame, the fixing plate and the lower support are designed to be L-shaped, one side of the fixing plate is fixed with the lower support, and the other side of the fixing plate is fixed with the base, so that all parts forming the core frame are simple in structure and easy to produce.

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 view of a base and a mounting frame of the present invention;

FIG. 2 is a schematic structural view of the core holder of the present invention;

FIG. 3 is a schematic view of the exploded structure of the core holder of the present invention;

FIG. 4 is a schematic view of a symmetrical cross-section of the core frame of the present invention;

FIG. 5 is a schematic view of the core frame of the present invention with the connecting frame removed from the first view;

fig. 6 is a schematic view of the connection structure of the motor, the driving gear, the gear set and the printing roller on the fixing plate according to the present invention;

FIG. 7 is a schematic structural view of the printer according to the present invention with the upper cover removed;

FIG. 8 is a schematic cross-sectional view of the printer of the present invention;

icon: 1. a base; 2. a mounting frame; 3. a connecting frame; 4. a gear plate; 5. a printing assembly; 6. a fixing plate; 7. an upper cover; 8. a base; 9. a paper bin; 10. a pressure member; 11. a printing assembly receiving cavity; 12. a printing paper accommodating chamber; 21. an upper bracket; 22. a lower bracket; 31 an extension portion; 41 gear set mounting cavity; 42. a gear set; 43. a support hole; 51. a printing device; 52. a print roller; 61. positioning blocks; 121. a paper feed roller; 211. installing a frame; 212 an elastic member; 213. a transfer shaft; 214. connecting holes; 221. positioning a groove; 222. a limiting part; 231. a motor; 232. a drive gear; 233. a driving gear; 421. a first pinion gear; 2111. an installation part; 2112. a protrusion; 2331. a main rotating shaft.

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

Referring to fig. 1, the present embodiment provides a printer cartridge including a base 1 and a mounting frame 2, the mounting frame 2 being formed by combining an upper bracket 21 and a lower bracket 22 in a separable manner. The base 1 is partially provided in the mounting frame 2 to form a printing block accommodating chamber 11 and a printing paper accommodating chamber 12.

Referring to fig. 2, a printing block accommodating chamber 11 is formed at a front end of the mounting frame 2, and a printing paper accommodating chamber 12 is formed at a rear end. The paper feeding roller 121 is disposed on the base 1 and protrudes from the bottom of the printing paper accommodating cavity 12 to drive the printing paper to move toward the printing component accommodating cavity 11, the printing component 5 includes a printing roller 52 and a printing device 51, the printing roller 52 and the printing device 51 are disposed opposite to each other, one is disposed above and connected to the upper bracket 21, and the other is disposed below and connected to the lower bracket 22, with the base 1 as a boundary. In this embodiment the printing roller 52 is attached to the lower frame 22 and the printing device 51 is attached to the upper frame 21.

Referring to fig. 2, the gear rack further comprises a connecting frame 3 arranged at the front end of the mounting frame 2 and a gear plate 4 arranged at the side edge of the mounting frame 2. The connecting frame 3 is used for connecting an outer casing (not shown) of the printer to protect the core frame, and the gear plate 4 is provided with a plurality of supporting holes 43 for supporting a rotating shaft of the gear set 42 and protecting the rotation of the gear set 42, so as to prevent the gear set 42 from being interfered by the outside.

Referring to fig. 2 and 3, the mounting frame 2 further includes a fixing plate 6 disposed at a side of the mounting frame 2, and since the printing device 51 is kept under a certain pre-load by the elastic member 212, the printing device 51 is tightly attached to the printing paper during printing, so that one side of the fixing plate 6 is fixed to the upper frame 21 or the lower frame 22 connected to the printing roller 52 to keep the fixing plate 6 fixed. When the print roller 52 is mounted on the upper frame 21, the fixing plate 6 is fixed to the upper frame 21, and when the print roller 52 is mounted on the lower frame 22, the fixing plate 6 is fixed to the lower frame 22, and in this embodiment, the fixing plate 6 is fixedly connected to the lower frame 22. The fixed plate 6, the gear plate 4 and the extension portion 31 of the connecting frame 3 together form a gear set installation cavity 41, the fixed plate 6 is arranged in parallel with the gear plate 4, and an opening corresponding to the support hole 43 of the gear plate 4 is arranged on the fixed plate 6 to support the rotating shaft of the gear set 42, so that the gear set 42 is rotatably installed in the gear set installation cavity 41. The fixing plate 6 and the lower bracket 22 are both L-shaped, at least 2 fixing holes are arranged on two side edges, one side of the fixing plate is fixed with the lower bracket 22, and the other side of the fixing plate is fixed with the base 1, so that all parts forming the core frame are simple in structure and easy to produce.

Referring to fig. 1 and 3, a positioning groove 221 is formed in a side of the lower bracket 22 connected to the fixing plate 6, a positioning block 61 is disposed on the fixing plate 6, and the fixing plate 6 is fixed to the lower bracket 22 after the fixing plate 6 is accurately positioned by matching the positioning block 61 with the positioning groove 221. When the positioning block 61 is matched with the positioning slot 221, one side of the fixing plate 6 is tightly attached to the bottom edge of the lower bracket 22, and at this time, the fixing hole on the fixing plate 6 just corresponds to the hole position on the lower bracket 22, so that the fixing block and the fixing plate are quickly positioned and fixed. Similarly, when the positioning block 61 is engaged with the positioning slot 221, the other side of the fixing plate 6 is also tightly attached to the base 1, and the fixing holes on the other side are also corresponding to the hole positions on the base 1, so as to quickly fix the fixing plate 6 on the core frame.

Referring to fig. 2, 4 and 5, the upper frame 21 is rotatably mounted on the mounting frame 2, a pivot shaft 213 thereof is pivotally connected to the base 1 after passing through the lower frame 22 and the fixing plate 6, and the upper frame 21 rotates about the pivot shaft 213. The pivot shaft 213 may be provided with a plurality of ways, such as a pivot pin, connecting holes 214 are formed on both sides of the upper frame 21, the pivot pin passes through the lower frame 22 and the fixing plate 6 through the connecting holes 214 and then is engaged with the holes of the pivot pin on the base 1, and a locking hole is formed at the tail of the pivot pin to lock the pivot pin through a latch, so that the upper frame 21 is pivotally connected to the mounting frame 2 and the base 1. After the printing paper in the printing paper accommodating chamber 12 is conveyed forward to the printing component accommodating chamber 11 by the paper feeding roller 121, a paper feeding passage is needed to convey the printing paper forward, and the upper bracket 21 is installed on the printing device 51 and keeps a gap with the base 1 to form the paper feeding passage, because the printing paper is conveyed forward and output by the rotation of the printing roller 52 after being conveyed to the printing component 5 for printing.

An elastic member 212 is provided between the upper frame 21 and the base 1, and the elastic member 212 brings both the printing device 51 and the printing roller 52 into close contact with the printing paper in a state where the printing paper is sandwiched between the printing device 51 and the printing roller 52. The elastic member 212 provides an elastic force to press the upper holder 21 toward the print roller 52 to press the printing device 51. One of the preferred embodiments of the resilient member 212 in this embodiment is a compression spring by which the upper bracket 21 is held in downward pressure. The pressure spring is installed before upper bracket 21 and base 1, and the concrete structure is as follows: the left and right sides of the front end of the upper bracket 21 extend downwards to form a left and right elastic element mounting frame 211, the bottom of the mounting frame 211 is a mounting part 2111 of the elastic element 212, the corresponding positions of the fixing plate 6 and the lower bracket 22 extend forwards to the top of the elastic element mounting frame 211 to form an elastic element limiting part 222, the elastic element 212 is fixed through the limiting part 222, and the mounting part 2111 and the limiting part 222 form a mounting space of a pressure spring. Preferably, a protrusion 2112 is provided upward on the mounting portion 2111, the protrusion 2112 is used for fixing the elastic element 212 to prevent it from falling off, and the elastic element 212 is better fixed in the elastic element mounting frame 211 by the cooperation of the protrusion 2112 and the limiting portion 222. The position of the elastic member 212 may be various, and is not limited to the above-mentioned position, and may be disposed on the upper frame 21, for example.

Referring to fig. 2 and 6, the fixing plate 6 and the base 1 form a pinion installation cavity, a motor 231, a driving gear 232 and a pinion 233 are disposed on the fixing plate 6, the motor 231 is installed outside the pinion installation cavity, the driving gear 232 and the pinion 3 are installed inside the motor, and the driving gear and the gear set 42 are connected to drive the printing roller 52 to rotate. The motor 231 drives the driving gear 232 to rotate, the driving gear 232 is meshed with the driving gear 233 to drive the driving gear 233 to rotate, the driving gear 233 is coaxially disposed with the first pinion 421 in the gear set 42, and the rotation of the driving gear 233 drives the main shaft 2331 to rotate, so that the first pinion 421 rotates to drive the entire gear set 42 to rotate. The main shaft 2331 spans the pinion gear 233 installation chamber and the gear train installation chamber 41 and is supported on the support holes 43 of the fixed plate 6 and the gear plate 4.

Through with core frame reasonable tear a spare one-tenth installing frame 2 and locate the link 3 of 2 front ends of installing frames and the gear plate 4 of locating 2 sides of installing frames to this required spatial position of installation and the required precision requirement of satisfying functional assembly.

Referring to fig. 7 and 8, the present invention further provides a printer, which includes the above core frame, further includes a base 8 and an upper cover 7, the base 8 is connected and fixed with the printer core frame through the connecting frame 3, preferably, the connecting frame 3 is provided with bolt holes, and the base 8 is fixed on the core frame through bolt connection.

The base 1 and the base 8 jointly form a paper bin 9 for storing printing paper, and a pressure piece 10 for applying pressure to the printing paper is arranged on the upper cover 7 of the paper bin 9, so that the printing paper is tightly attached to the bottom of the paper bin 9, the friction force between the paper feeding roller 121 and the printing paper is increased, and the forward conveying of the printing paper is facilitated.

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. A printer movement frame comprises a base (1) and a mounting frame (2) composed of an upper support (21) and a lower support (22), wherein the base (1) is partially arranged in the mounting frame (2) to form a printing component mounting cavity (11) and a printing paper accommodating cavity (12), the printer movement frame is characterized by further comprising a connecting frame (3) arranged at the front end of the mounting frame (2) and a gear plate (4) arranged on the side edge of the mounting frame (2), and the connecting frame (3) is used for being connected with an outer shell of a printer; the mounting frame (2) further comprises a fixing plate (6) located on the side edge of the mounting frame (2), and the fixing plate (6), the gear plate (4) and the extending portion (31) of the connecting frame (3) jointly form a gear set mounting cavity (41).

2. The printer cartridge of claim 1, wherein said upper frame (21) is rotatably mounted on said mounting frame (2) with a pivot shaft (213) passing through said lower frame (22) and said stationary plate (6) and leaving a gap with said base (1) to form a paper feed path for printing paper.

3. The printer cartridge holder according to claim 2, wherein the upper bracket (21) is provided with elastic member mounting frames (211) at left and right sides of a front end thereof, the fixing plate (6) and the lower bracket (22) are provided with elastic member limiting portions (222) at corresponding positions, and the limiting portions (222) penetrate through the mounting frames (211) to fix the elastic members (212).

4. The printer cartridge of claim 3, wherein the bottom of the mounting frame (211) is provided with an upward protrusion (2112), and the protrusion (2112) is used for fixing the elastic member (212) to prevent it from falling off.

5. The printer cartridge of claim 1, wherein said holding plate (6) and said lower support (22) are L-shaped, one side of said holding plate (6) being fixed to said lower support (22) and the other side being fixed to said base (1).

6. The printer cartridge of claim 5, wherein the fixing plate (6) is provided with a positioning block (61), the lower bracket (22) is provided with a positioning groove (221), and the fixing plate (6) is fixed after being positioned by the positioning block (61) and the positioning groove (221).

7. The printer cartridge holder according to claim 1, wherein the fixing plate (6) and the base (1) form a driving gear installation cavity, the fixing plate (6) is provided with a motor (231), a driving gear (232) and a driving gear (233), the motor (231) is installed outside the driving gear installation cavity, the driving gear (232) and the driving gear (233) are installed inside the driving gear installation cavity, and the driving gear (233) is connected with the gear set (42) to drive the printing roller (52) to rotate.

8. The printer cartridge of claim 1, further comprising a paper feed roller (121), wherein the paper feed roller (121) is disposed on the base (1) and protrudes from the bottom of the printing paper receiving cavity (12) to drive the printing paper to move toward the printing roller (52).

9. A printer comprising a printer cartridge as claimed in any one of claims 1 to 8, further comprising a base (8) and an upper cover (7), said base (8) being connected to said printer cartridge by said connecting frame (3).

10. Printer according to claim 9 characterized in that said base (1) and said base (8) together form a paper compartment (9) for storing printing paper, said paper compartment (9) being provided with an upper cover (7), said upper cover (7) being provided with a pressure member (10) for applying a force to said printing paper.

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