Portable thermal printer core overturning, separating and pressing mechanism

Abstract

The utility model discloses a portable thermal printer core overturn separation and press fit mechanism, which comprises a lower shell, an upper shell and printing paper, the lower shell and the upper shell are hinged with each other, and the printing paper is positioned in the lower shell; one end of the push block is fixedly connected to the upper shell, and the other end of the push block is hinged to the interior of the lower shell; the transmission assembly is located in the lower shell; the rack assembly is located in the lower shell; and the printing assembly is located in the lower shell. Compared with the prior art, the printer has the advantages that when the upper shell and the lower shell are closed, the printing head sheet automatically presses printing paper to the rubber roller, the printing head sheet is straightened and fixed in parallel with the rubber roller, paper installation is facilitated, the size is small, carrying is convenient, when the shells are opened, the printing head sheet is turned over and separated, and a paper containing space is reserved.

Description

Technical Field

[0001] The utility model relates to the technical field of thermal printers, in particular to a flipping, separation and pressing mechanism for a portable 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 heating and chemical reactions in the film. This thermal printer chemical reaction is carried out at a certain temperature. High temperature will accelerate this chemical reaction. When the temperature is below 60°C, it takes a long time, even several years, for the paper to turn dark; when the temperature is 200°C, this reaction will be completed in a few microseconds.

[0003] Currently, the separation mechanism on the market is to separate the rubber roller and the print head piece in parallel, which cannot guarantee the printing quality and the feel of opening the cover, and the buckle assembly structure is complex and difficult to assemble. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the above technical defects and provide a portable thermal printer movement flipping, separation and pressing mechanism. When the upper and lower shells are closed, the print head piece automatically presses the printing paper to the rubber roller, and the print head piece is aligned and fixed parallel to the rubber roller, which is convenient for paper installation. The utility model has a small size and is easy to carry. When the shell is opened, the print head piece is flipped and separated, leaving space for paper installation.

[0005] In order to solve the above problems, the technical solution of the utility model is: a portable thermal printer movement flip separation and pressing mechanism, including a lower shell, an upper shell, and printing paper, the lower shell and the upper shell are hinged to each other, and the printing paper is located inside the lower shell;

[0006] A push block, one end of which is fixedly connected to the upper shell, and the other end of which is hinged inside the lower shell;

[0007] A transmission assembly, wherein the transmission assembly is located inside the lower housing;

[0008] A frame assembly, wherein the frame assembly is located inside the lower housing;

[0009] A printing assembly, wherein the printing assembly is located inside the lower housing;

[0010] The frame assembly comprises a flip frame, one end of the flip frame is provided with a connecting bracket, one end of the connecting bracket is provided with a head chip base frame, the other end of the head chip base frame is provided with a printing head chip, and the lower end of the flip frame is provided with a spring.

[0011] Further, the transmission assembly includes a cover-closing push block which is slidably connected inside the lower housing. The two ends of the cover-closing push block are provided with inclined plates. A second spring is arranged inside the cover-closing push block, and the other end of the second spring is fixedly connected to the lower housing.

[0012] Further, the printing assembly includes a gear rack. One side of the upper end of the gear rack is provided with a motor, and the other side of the upper end of the gear rack is provided with a rubber roller. A gear set is arranged at the lower end of the gear rack. The lower end of the first spring is fixedly connected to the gear rack, and the lower end of the connecting bracket is rotatably connected to one end of the gear rack.

[0013] Further, a rotating shaft is arranged inside the connecting bracket. Connecting ears are arranged on the upper and lower sides of one end of the head piece base frame. The connecting ears are sleeved on the rotating shaft. A torsion spring is arranged on the surface of the rotating shaft, and snap rings are arranged at the upper and lower ends of the rotating shaft.

[0014] Further, the gear set includes four gears. The four gears are rotatably connected to the lower side of the gear rack. Adjacent two gears are meshed and connected. The output end of the motor is connected to one of the gears, and the lower end of the rubber roller is connected to another one of the gears.

[0015] The advantages of the present utility model compared with the prior art are as follows:

[0016] (1) When the upper housing and the lower housing of the present utility model are in an open state, the print head piece and the rubber roller form a V shape with a certain gap, which facilitates the installation of the printing paper. When the upper housing closes towards the lower housing, it drives the push block to rotate. The push block contacts the inclined plate at one end of the cover-closing push block, and drives the cover-closing push block to slide inside the lower housing through the inclined plate. The second spring is compressed. The inclined plate at the other end of the cover-closing push block contacts and moves the lower end of the flipping frame. The inclined plate can drive the flipping frame to rotate. The flipping frame rotates on the gear rack through the connecting bracket, and the first spring is stretched. The print head piece presses the printing paper against the rubber roller, and the print head piece is aligned and fixed parallel to the rubber roller.

[0017] It is small in size and convenient to carry and use. Description of the Drawings

[0018] Figure 1 is a perspective view of a flip-separation and pressing mechanism of a portable thermal printer movement of the present utility model.

[0019] Figure 2 is an exploded view (without housing) of a flip-separation and pressing mechanism of a portable thermal printer movement of the present utility model.

[0020] Figure 3 is a side view (without housing) of a flip-separation and pressing mechanism of a portable thermal printer movement of the present utility model.

[0021] Figure 4It is a top view (without the housing) of a flip - separation and pressing mechanism for the core of a portable thermal printer according to the present utility model.

[0022] As shown in the figure: 1. Lower housing; 2. Upper housing; 3. Push block; 4. Transmission assembly; 5. Frame assembly; 6. Printing paper; 7. Flip frame; 8. Connecting bracket; 9. Head piece base frame; 10. Print head piece; 11. Spring 1; 12. Rotating shaft; 13. Torsion spring; 14. Snap ring; 15. Cover - closing push block; 16. Inclined plate; 17. Spring 2; 18. Gear frame; 19. Motor; 20. Gear set; 21. Rubber roller; 22. Printing assembly. Specific embodiments

[0023] The following further illustrates the specific embodiments of the present utility model with reference to the accompanying drawings. Among them, the same components are denoted by the same reference numerals.

[0024] It should be noted that the terms "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the terms "inner" and "outer" respectively refer to the directions towards or away from the geometric center of a specific component.

[0025] In order to make the content of the present utility model more clearly understood, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

[0026] Embodiment 1

[0027] As Figure 1 As shown in the figure, a flip - separation and pressing mechanism for the core of a portable thermal printer includes a lower housing 1 and an upper housing 2. The lower housing 1 and the upper housing 2 are hinged to each other and can be closed. The printing paper 6 is located inside the lower housing 1.

[0028] One end of the push block 3 is fixedly installed on the upper housing 2, and the other end of the push block 3 is hingedly installed inside the lower housing 1. When the upper housing 2 closes towards the lower housing 1, it can drive the push block 3 to rotate. The transmission assembly 4 is located inside the lower housing 1. The transmission assembly 4 includes a cover - closing push block 15. The cover - closing push block 15 is installed inside the lower housing 1 and can slide. Inclined plates 16 are installed at both ends of the cover - closing push block 15. A groove is provided in the cover - closing push block 15, and one end of a spring 2 17 is installed in the groove, and the other end of the spring 2 17 is fixedly installed on the lower housing 1. When the upper housing 1 is closed, it drives the push block 3 to rotate. The push block 3 contacts the inclined plate 16 at one end of the cover - closing push block 15, and drives the cover - closing push block 15 to slide inside the lower housing 1 through the inclined plate 16, and the spring 2 17 is compressed.

[0029] The frame assembly 5 is located inside the lower housing 1. The frame assembly 5 includes a flipping frame 7. One end of the flipping frame 7 is installed with a connecting bracket 8. The lower end of the connecting bracket 8 is rotatably connected to one end of the gear frame 18. A first spring 11 is installed at the lower end of the flipping frame 7, and the other end of the first spring 11 is installed at the gear frame 18. When the lid-closing push block 15 moves, the inclined plate 16 at the other end of the lid-closing push block 15 contacts and moves the lower end of the flipping frame 7. The inclined plate 16 can drive the flipping frame 7 to rotate. The flipping frame 7 rotates on the gear frame 18 through the connecting bracket 8, and the first spring 11 is stretched.

[0030] The printing assembly 22 is located inside the lower housing 1. The printing assembly 22 includes a gear frame 18. A motor 19 is installed on one side of the upper end of the gear frame 18, and a rubber roller 21 is installed on the other side of the upper end of the gear frame 18. A gear set 20 is installed at the lower end of the gear frame 18. The gear set 20 includes four gears. The four gears are rotatably installed on the lower side of the gear frame 18 and are linearly arranged. Adjacent two gears are meshed and connected. The output end of the motor 19 is connected to one of the gears, and the lower end of the rubber roller 21 is connected to another one of the gears. When the motor 19 starts, the rubber roller 21 can be driven to rotate through the gear set 20. One end of the connecting bracket 8 is installed with a head piece base frame 9, and the other end of the head piece base frame 9 is installed with a printing head piece 10. The printing head piece 10 is located on one side of the rubber roller 21. The free end of the printing paper 6 is located between the printing head piece 10 and the rubber roller 21, and printing can be performed.

[0031] After the flipping frame 7 drives the connecting bracket 8 to rotate, the printing head piece 10 presses the printing paper against the rubber roller 21. When the upper housing 2 and the lower housing 1 are opened, the push block 3 is separated from the lid-closing push block 15, and the second spring 17 returns and is no longer compressed, thereby driving the lid-closing push block 15 away from the flipping frame 7. Thus, the second spring 17 is no longer stretched, and thus the flipping frame 7 and the connecting bracket 8 rotate in a direction away from the rubber roller 21, and the printing head piece 10 moves away from the rubber roller 21. The printing head piece 10 and the rubber roller 21 form a V shape with a certain gap, which is convenient for installing the printing paper 6.

[0032] A rotating shaft 12 is installed inside the connecting bracket 8. Connecting ears are installed on the upper and lower sides of one end of the head piece base frame 9. The connecting ears are sleeved on the rotating shaft 12. A torsion spring 13 is installed on the surface of the rotating shaft 12, and snap rings 14 are installed at the upper and lower ends of the rotating shaft 12. The snap rings 14 can fix the head piece base frame 9 and facilitate the disassembly and replacement of the head piece base frame 9 and the printing head piece 10.

[0033] Embodiment 2

[0034] Based on the description of the first embodiment, when the upper housing 2 and the lower housing 1 are in the open state, the print head sheet 10 and the rubber roller 21 form a V shape with a certain gap, which facilitates the installation of the printing paper 6. When the upper housing 2 closes towards the lower housing 1, it drives the push block 3 to rotate. The push block 3 contacts the inclined plate 16 at one end of the lid-closing push block 15, and drives the lid-closing push block 15 to slide inside the lower housing 1 through the inclined plate 16. The second spring 17 is compressed. The inclined plate 16 at the other end of the lid-closing push block 15 contacts and moves the lower end of the flipping frame 7. The inclined plate 16 can drive the flipping frame 7 to rotate. The flipping frame 7 rotates on the gear frame 18 through the connecting bracket 8. The first spring 11 is stretched. The print head sheet 10 presses the printing paper 6 against the rubber roller 21. The motor 19 starts and drives the rubber roller 21 to rotate through the gear set 20. The free end of the printing paper 6 is located between the print head sheet 10 and the rubber roller 21, and printing can be performed.

[0035] All the electrical components mentioned in this article can be powered by the battery inside the device or connected to the socket through the data cable. And the main controller can be a conventional known device such as a computer for control. The detailed descriptions of the known functions and known components are omitted in the specific implementation manners of the present disclosure. To ensure the compatibility of the device, the operating means adopted are consistent with the parameters of the market instruments.

[0036] The above describes the present invention and its implementation manners. Such a description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present invention, and the actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and design a structural manner and an embodiment similar to the technical solution without creative work without departing from the purpose of the present invention creation, they shall fall within the protection scope of the present invention.

Claims

1. A portable thermal printer movement flip separation and pressing mechanism, characterized in that: include: A lower shell (1), an upper shell (2), and printing paper (6), wherein the lower shell (1) and the upper shell (2) are hingedly connected to each other, and the printing paper (6) is located inside the lower shell (1); A push block (3), one end of the push block (3) is fixedly connected to the upper shell (2), and the other end of the push block (3) is hinged inside the lower shell (1); A transmission assembly (4), wherein the transmission assembly (4) is located inside the lower housing (1); A frame assembly (5), wherein the frame assembly (5) is located inside the lower housing (1); A printing assembly (22), wherein the printing assembly (22) is located inside the lower housing (1); The frame assembly (5) comprises a flip frame (7), one end of the flip frame (7) is provided with a connecting bracket (8), one end of the connecting bracket (8) is provided with a head chip base frame (9), the other end of the head chip base frame (9) is provided with a printing head chip (10), and the lower end of the flip frame (7) is provided with a spring 1 (11).

2. According to claim 1, a portable thermal printer movement flip separation and pressing mechanism is characterized in that: The transmission assembly (4) comprises a cover-closing push block (15), the cover-closing push block (15) is slidably connected to the interior of the lower housing (1), inclined plates (16) are provided at both ends of the cover-closing push block (15), a second spring (17) is provided inside the cover-closing push block (15), and the other end of the second spring (17) is fixedly connected to the lower housing (1).

3. The portable thermal printer movement flipping, separation and pressing mechanism according to claim 1, characterized in that: The printing assembly (22) comprises a gear frame (18), a motor (19) is provided on one side of the upper end of the gear frame (18), a rubber roller (21) is provided on the other side of the upper end of the gear frame (18), a gear group (20) is provided on the lower end of the gear frame (18), the lower end of the spring 1 (11) is fixedly connected to the gear frame (18), and the lower end of the connecting bracket (8) is rotatably connected to one end of the gear frame (18).

4. The portable thermal printer movement flipping, separation and pressing mechanism according to claim 1, characterized in that: A rotating shaft (12) is provided inside the connecting bracket (8), and connecting ears are provided on the upper and lower sides of one end of the head piece base frame (9), and the connecting ears are sleeved on the rotating shaft (12). A torsion spring (13) is provided on the surface of the rotating shaft (12), and a retaining spring (14) is provided at the upper and lower ends of the rotating shaft (12).

5. The portable thermal printer movement flipping, separation and pressing mechanism according to claim 3, characterized in that: The gear set (20) comprises four gears, the four gears are rotatably connected to the lower side of the gear frame (18), two adjacent gears are meshed and connected, the output end of the motor (19) is connected to one of the gears, and the lower end of the rubber roller (21) is connected to another gear.

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