Thermal printer core

Abstract

The utility model discloses a thermal printer machine core, comprising a machine core housing and a head sheet assembly, the machine core housing is provided with an accommodating cavity, and the head sheet assembly is installed in the accommodating cavity; the head piece assembly comprises a head piece support (5) and a base plate (6), a mounting groove (501) is formed in the head piece support (5), a first connecting piece (601) and a second connecting piece (602) are arranged on the two opposite sides of the base plate (6) respectively, and the first connecting piece (601) and the second connecting piece (602) are movably connected to the two opposite side walls of the mounting groove (501) respectively. The base plate (6) is limited between the two opposite side walls of the mounting groove (501) through the first connecting piece (601) and the second connecting piece (602), and the base plate (6) can move back and forth in the height direction of the head piece support (5). The connecting structure is arranged between the side wall of the head piece support and the side wall of the base plate of the thermal printer machine core, the head piece support and the base plate are assembled reliably, the movement direction of the base plate can be effectively limited, the phenomena of deviation and the like are avoided, and therefore the printing effect is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of thermal printers, and more specifically to a thermal printer core. Background Art

[0002] The working principle of a thermal printer is that a semiconductor heating element is installed on the print head. After the print head is heated and contacts the thermal printing paper, the required pattern can be printed. Its principle is similar to that of a thermal fax machine. The image is generated by a chemical reaction in the film through heating. The head chip assembly is the core component of the thermal printer. Therefore, the reliability of the installation of the head chip assembly directly affects the printing effect of the thermal printer.

[0003] The utility model patent with the patent publication number CN220662042U discloses a thermal printer core and a printer, including: a chassis, a rotating bracket, a head chip bracket and an elastic member. The chassis is provided with an installation groove and includes a short shaft integrally connected to the inner side of the installation groove. The number of short shafts is two and they are arranged coaxially along the X-axis. A sliding groove is provided along the Y-axis direction on the inner side of the installation groove; a rotating bracket is arranged in the installation groove. The rotating bracket is provided with an opening groove and is rotatably connected to the short shaft through the opening groove; a head chip bracket is arranged in the installation groove. The head chip bracket is slidably arranged between the two sliding grooves and is limited inside the sliding grooves in the X-axis and Z-axis directions; the elastic member is arranged between the rotating bracket and the head chip bracket. The elastic member pushes and tops the head chip bracket through elastic force and is limited at one end of the sliding groove in the Y-axis direction, and pushes and tops the rotating bracket to rotate and is limited by the head chip bracket through elastic force. There is no direct connection structure between the side wall of the head chip bracket and the side wall of the rotating bracket of this thermal printer core, and the assembly structure of the two is unreliable. After a long time of use, the head chip bracket may shift, thus affecting the printing effect. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide a thermal printer core. The head chip assembly of this thermal printer core has a simple structure and is convenient to assemble, which can effectively reduce the production cost; a connection structure is provided between the side wall of the head chip bracket and the side wall of the substrate, and the assembly of the two is relatively reliable, which can effectively limit the movement direction of the substrate and will not appear phenomena such as offset, so as to ensure the printing effect.

[0005] The technical solution of the present utility model is to provide a thermal printer movement with the following structure, including a movement housing and a head sheet assembly. A receiving cavity is provided on the movement housing, and the head sheet assembly is installed in the receiving cavity. The head sheet assembly includes a head sheet bracket and a substrate. An installation groove is provided on the head sheet bracket. First connectors and second connectors are respectively provided on opposite sides of the substrate. The first connector and the second connector are respectively movably connected to opposite side walls of the installation groove. The substrate is limited between the opposite side walls of the installation groove through the first connector and the second connector, and the substrate can move back and forth along the height direction of the head sheet bracket.

[0006] After adopting the above structure, the thermal printer movement of the present utility model has the following advantages compared with the prior art:

[0007] Since the head sheet assembly of the thermal printer movement of the present utility model includes a head sheet bracket and a substrate, the assembly structure between the head sheet bracket and the substrate is simple and convenient to assemble, which can effectively reduce the production cost. The two sides of the substrate are respectively movably connected to the two side walls of the installation groove through the first connector and the second connector, so that the connection between the substrate and the head sheet bracket is relatively reliable, which can effectively limit the movement direction of the substrate and prevent phenomena such as deviation, thereby ensuring the printing effect.

[0008] As an improvement, a first limiting hole is provided on the side wall of the installation groove corresponding to the first connector, and the first connector is slidably fitted and limited in the first limiting hole. After adopting this structure, the connection structure between the first connector and the side wall of the installation groove is simple and convenient to assemble.

[0009] As an improvement, one end of the first connector is connected to the substrate, and a barb is provided at the other end of the first connector. The first connector extends into the first limiting hole, and the barb is limited between the two ends of the first limiting hole. After adopting this structure, the barb can limit the first connector in the first limiting hole to prevent the substrate from disengaging from the head sheet bracket. The head sheet is installed more stably.

[0010] As an improvement, a first notch is provided on the side wall of the substrate, and the one end of the first connector is connected to the bottom of the first notch. After adopting this structure, the first connector has a simple structure and is convenient to manufacture.

[0011] As an improvement, a lug is provided on the side wall of the installation groove corresponding to the second connector, a second limiting hole is provided on the lug, the second connector of the substrate is inserted into the second limiting hole, and the second connector is slidably fitted with the second limiting hole. After adopting this structure, the connection structure between the second connector and the side wall of the installation groove is simple and convenient to assemble.

[0012] As an improvement, one end of the second connecting member is connected to the side wall of the substrate, and limiting protrusions are provided on both sides of the other end of the second connecting member, and the limiting protrusions are limited outside the second limiting holes. After adopting this structure, the limiting protrusions can limit the second connecting member in the second limiting holes, preventing the substrate from disengaging from the head piece bracket. The head piece is more stably installed.

[0013] As an improvement, a spring is provided between the substrate and the bottom wall of the installation groove, a positioning protrusion is provided on the bottom wall of the installation groove, one end of the spring is sleeved on the positioning protrusion, and the other end is connected to the substrate. After adopting this structure, the structure is simple, and the spring is convenient and stable to assemble.

[0014] As an improvement, a fixing piece is provided on the head piece bracket, and the fixing piece is fixedly connected to the movement housing. After adopting this structure, the head piece bracket is installed through the fixing piece, and the connection structure is simple and convenient to assemble.

[0015] As an improvement, a second notch is provided on the side wall of the head piece bracket, and the bottom of the second notch extends outward to form the fixing piece. After adopting this structure, the fixing piece has a simple structure and is convenient to manufacture.

[0016] As an improvement, a head piece is fixedly connected to the side of the substrate away from the spring. Description of the Drawings

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the thermal printer movement of the present utility model.

[0018] Figure 2 It is a sectional structural schematic diagram of the thermal printer movement of the present utility model.

[0019] Figure 3 It is a partial three-dimensional structural schematic diagram of the thermal printer movement of the present utility model.

[0020] Figure 4 It is an assembled structural schematic diagram of the head piece bracket and the substrate of the thermal printer movement of the present utility model.

[0021] Figure 5 It is a three-dimensional structural schematic diagram of the head piece bracket of the thermal printer movement of the present utility model.

[0022] Figure 6 It is a three-dimensional structural schematic diagram of the substrate of the thermal printer movement of the present utility model.

[0023] As shown in the figure: 1. First housing, 101. Mounting hole, 2. Second housing, 3. Rubber roller, 4. Head piece, 5. Head piece bracket, 501. Mounting groove, 502. First limiting hole, 503. Lobe, 504. Second limiting hole, 6. Substrate, 601. First connecting piece, 602. Second connecting piece, 603. First notch, 604. Barbed hook, 605. Limiting protrusion, 7. Spring, 8. Paper. Detailed implementation

[0024] To better understand the present application, more detailed descriptions of various aspects of the present application will be made with reference to the accompanying drawings. It should be understood that these detailed descriptions are only descriptions of exemplary embodiments of the present application and do not limit the scope of the present application in any way. Throughout the specification, the same reference numerals refer to the same elements.

[0025] In the drawings, for the sake of clarity, the thickness, dimensions and shape of the objects have been slightly exaggerated. The drawings are only examples and are not drawn to strict scale.

[0026] It should also be understood that the terms "comprising", "including", "having", "containing" when used in this specification denote the presence of the stated features, wholes, steps, operations, elements and / or components, but do not preclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or combinations thereof.

[0027] As Figures 1 to 6 As shown, the present application discloses a thermal printer core, including a core housing and a head piece assembly. The core housing includes a first housing 1 and a second housing 2. The head piece assembly is mounted on the first housing 1, and a rubber roller 3 is mounted on the second housing 2. When the first housing 1 and the second housing 2 are closed, a gap for the paper 8 to pass through is formed between the rubber roller 3 and the head piece assembly. During operation, the rotation of the rubber roller 3 drives the movement of the paper 8, and the rubber roller 3 presses the paper 8 to make it contact with the head piece 4 of the head piece assembly to achieve the effect of thermal printing.

[0028] The first housing 1 is provided with a mounting hole 101. The inner cavity of the mounting hole 101 forms a receiving cavity. The size of the receiving cavity corresponds to the size of the head piece assembly. The head piece assembly is mounted in the receiving cavity. The head piece assembly includes a head piece bracket 5 and a substrate 6. The head piece bracket 5 is provided with a mounting groove 501. Opposite sides of the substrate 6 are respectively provided with a first connecting piece 601 and a second connecting piece 602. The substrate 6 is limited between opposite side walls of the mounting groove 501 through the first connecting piece 601 and the second connecting piece 602.

[0029] A first limiting hole 502 is provided on the side wall of the installation groove 501 corresponding to the first connecting member 601. The first connecting member 601 is in sliding fit and limited within the first limiting hole 502. A first notch 603 is provided on the side wall of the substrate 6. One end of the first connecting member 601 is connected to the bottom of the first notch 603, and the first connecting member 601 stands vertically on the substrate 6. The other end of the first connecting member 601 is provided with a barb 604. The first connecting member 601 extends into the first limiting hole 502, and the barb 604 is limited between the two ends of the first limiting hole 502.

[0030] A lug 503 is provided on the side wall of the installation groove 501 corresponding to the second connecting member 602. A second limiting hole 504 is provided on the lug 503. One end of the second connecting member 602 is connected to the side wall of the substrate 6. Limiting protrusions 605 are provided on both sides of the other end of the second connecting member 602. The second connecting member 602 of the substrate 6 is inserted into the second limiting hole 504, and the second connecting member 602 is in sliding fit with the second limiting hole 504. The limiting protrusions 605 are limited outside the second limiting hole 504.

[0031] The substrate 6 can move back and forth along the height direction of the headpiece bracket 5, and the opening of the installation groove 501 of the substrate 6 can limit the substrate 6. An elastic member is provided between the substrate 6 and the bottom wall of the installation groove 501. The elastic member is a spring 7. A positioning protrusion 505 is provided on the bottom wall of the installation groove 501, and one end of the spring 7 is sleeved outside the positioning protrusion 505. In this specific embodiment, the spring 7 is a conical spring. The small end of the conical spring is sleeved outside the positioning protrusion 505, and the large end of the conical spring abuts against the substrate 6. A headpiece 4 is fixedly connected to the side of the substrate 6 away from the elastic member, and the headpiece 4 is adhesively fixed to the substrate 6.

[0032] A second notch 506 is provided on the side wall of the headpiece bracket 5. The bottom of the second notch 506 extends outward to form the fixing piece 507, and the fixing piece 507 is fixedly connected to the end face of the mounting hole 101 of the first housing 1 away from the rubber roller 3.

[0033] The present invention is not limited to the above best embodiment. Anyone can obtain other various forms of products under the inspiration of the present invention. However, no matter what changes are made in its shape or structure, as long as it has the same or similar technical solutions as the present application, they all fall within the protection scope of the present invention.

Claims

1. A thermal printer movement, comprising a movement housing and a head chip assembly, wherein the movement housing is provided with a receiving cavity, and the head chip assembly is installed in the receiving cavity; characterized in that: The head piece assembly comprises a head piece bracket (5) and a base plate (6); the head piece bracket (5) is provided with a mounting groove (501); the base plate (6) is provided with a first connecting member (601) and a second connecting member (602) on opposite sides; the first connecting member (601) and the second connecting member (602) are respectively movably connected to opposite side walls of the mounting groove (501); the base plate (6) is limited between the opposite side walls of the mounting groove (501) by the first connecting member (601) and the second connecting member (602); and the base plate (6) can move back and forth along the height direction of the head piece bracket (5).

2. The thermal printer mechanism according to claim 1, characterized in that: A first limiting hole (502) is provided on the side wall of the installation groove (501) corresponding to the first connecting member (601), and the first connecting member (601) is slidably matched and limited in the first limiting hole (502).

3. The thermal printer mechanism according to claim 2, characterized in that: One end of the first connecting member (601) is connected to the base plate (6), and the other end of the first connecting member (601) is provided with a barb (604); the first connecting member (601) extends into the first limiting hole (502), and the barb (604) is limited between the two ends of the first limiting hole (502).

4. The thermal printer mechanism according to claim 3, characterized in that: A first notch (603) is provided on the side wall of the substrate (6), and one end of the first connecting member (601) is connected to the bottom of the first notch (603).

5. The thermal printer mechanism according to claim 1, characterized in that: A lug (503) is provided on the side wall corresponding to the mounting groove (501) and the second connecting member (602), and a second limiting hole (504) is provided on the lug (503). The second connecting member (602) of the substrate (6) is inserted into the second limiting hole (504), and the second connecting member (602) is slidably matched with the second limiting hole (504).

6. The thermal printer mechanism according to claim 5, characterized in that: One end of the second connecting member (602) is connected to the side wall of the base plate (6), and both sides of the other end of the second connecting member (602) are provided with limiting protrusions (605), and the limiting protrusions (605) are limited outside the second limiting hole (504).

7. The thermal printer mechanism according to claim 1, characterized in that: A spring (7) is provided between the base plate (6) and the bottom wall of the mounting groove (501), and a positioning protrusion (505) is provided on the bottom wall of the mounting groove (501). One end of the spring (7) is sleeved on the positioning protrusion (505), and the other end is connected to the base plate (6).

8. The thermal printer mechanism according to claim 1, characterized in that: The head piece bracket (5) is provided with a fixing piece (507), and the fixing piece (507) is fixedly connected to the movement housing.

9. The thermal printer mechanism according to claim 8, characterized in that: A second notch (506) is provided on the side wall of the head piece bracket (5), and the bottom of the second notch (506) extends outwards to form the fixing piece (507).

10. The thermal printer mechanism according to claim 7, characterized in that: A head piece (4) is fixedly connected to a side of the substrate (6) away from the spring (7).

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