Flexible connection multi-direction pressing printing head assembly

Abstract

The utility model relates to the technical field of printers, and discloses a flexible connection multi-direction pressing printing head assembly, which comprises a shell, the rear end of the shell is fixedly connected with a frame to be processed, the inner side wall of the shell is rotatably connected with a bracket, the bottom end of the front side of the bracket is fixedly connected with a printing head, and the printing head is fixedly connected with the printing head. A downward pressing mechanism is detachably mounted on the side wall of the inner side of the bracket; the downward pressing mechanism comprises a top plate, the bottom end of the top plate is fixedly connected with an electric telescopic plate, the bottom end of the electric telescopic plate is rotatably connected with a smoothing roller, the bottom end of the top plate is fixedly connected with a fixing plate, the outer wall of the fixing plate is rotatably connected with a connecting plate, and a dismounting mechanism is arranged on the inner wall of the support. According to the utility model, when the paper is subjected to mobile printing, the pressing plate is driven to rotate through the movement of the smoothing roller, so that the wrinkled paper can be smoothed, and the smoothed paper is printed through the printing head, so that the printing quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of printers, in particular to a print head assembly with a flexible connection and multi-directional downward pressure. Background Art

[0002] Thermal transfer printers use heating elements to sublimate ink, pigment, or dye from a ribbon, then precisely transfer it to various media (such as paper, fabric, plastic, and metal), creating clear, durable text, images, or barcodes. The core principle is based on a heat transfer process. By controlling the temperature of the print head, the printing material on the ribbon transforms from a solid state to a gaseous or semi-liquid state at high temperatures. This state is then transferred to the surface of the print medium, where it cools and firmly bonds to the medium.

[0003] When printing is required, the cover of the shell is opened, and the paper to be processed is installed, and then the carbon ribbon is installed. After the paper to be printed and the carbon ribbon are adjusted, the printing operation can be carried out.

[0004] In the actual printing process, paper comes from various sources and may become wrinkled or uneven due to factors such as storage and transportation. For example, if ordinary A4 paper is squeezed when stored in a warehouse, or is placed haphazardly and frequently withdrawn in an office environment, wrinkles are likely to form. When these wrinkled papers enter the printer, the wrinkles come into contact with the print head during printing, causing the printed pattern or text to become blurred, resulting in a decrease in print quality. To this end, a flexible-connected multi-directional downward-pressing print head assembly is proposed to solve the above problem. Utility Model Content

[0005] In order to remedy the above deficiencies, the present invention provides a print head assembly with a flexible connection and multi-directional downward pressure, which aims to improve the problem in the prior art that printing on wrinkled paper may lead to reduced print quality.

[0006] In order to achieve the above-mentioned object, the utility model adopts the following technical solution: a flexible connection multi-directional downward pressure print head assembly, comprising a housing, the rear end of the housing is fixedly connected to the processing frame, the inner side wall of the housing is rotatably connected to the bracket, the front bottom end of the bracket is fixedly connected to the print head, and the inner side wall of the bracket is detachably mounted with a downward pressure mechanism;

[0007] The pressing mechanism includes a top plate, the bottom end of the top plate is fixedly connected to an electric telescopic plate, the bottom end of the electric telescopic plate is rotatably connected to a smoothing roller, the movable end of the electric telescopic plate is fixedly connected to a connecting plate, the bottom end of the top plate is fixedly connected to a fixed plate, the outer wall of the fixed plate is rotatably connected to a connecting plate, the inner wall of the connecting plate is elastically connected to a pressure plate via a connecting spring, the outer wall of the connecting plate is fixedly connected to a contact column, and the inner wall of the bracket is provided with a disassembly mechanism.

[0008] As a further description of the above technical solution:

[0009] The inner wall of the bottom end of the shell is fixedly connected with a support plate, and the top end of the support plate is rotatably connected with a support roller.

[0010] As a further description of the above technical solution:

[0011] The outer wall of the top plate is detachably mounted on the inner side wall of the bracket.

[0012] As a further description of the above technical solution:

[0013] One end of the connecting spring is fixedly connected to the inner wall of the connecting plate, the other end of the connecting spring is fixedly connected to the top of the pressing plate, and the outer wall of the pressing plate is slidably connected to the inner wall of the connecting plate.

[0014] As a further description of the above technical solution:

[0015] An oblique groove is provided on the inner wall of the connecting plate, and the outer wall of the contact column contacts the inner wall of the oblique groove.

[0016] As a further description of the above technical solution:

[0017] The disassembly mechanism includes a reset spring, one end of which is fixedly connected to the inner wall of the bracket, and the other end of which is fixedly connected to a plug-in board. The outer wall of the plug-in board is slidably connected to the inner wall of the bracket, and plug-in holes are provided at both left and right ends of the top plate.

[0018] As a further description of the above technical solution:

[0019] The side of the plug-in plate away from the return spring is plugged into the inner wall of the plug-in hole.

[0020] As a further description of the above technical solution:

[0021] The plug board is arranged in an L shape, and a slope is provided on one side facing the top board.

[0022] The utility model has the following beneficial effects:

[0023] 1. In the present invention, the shell, bracket, print head and its pressing mechanism cooperate with each other, so that when the paper is moved for printing, the movement of the smoothing roller drives the pressure plate to rotate, thereby making it possible to smooth out the wrinkled paper, and the smoothed paper is printed by the print head, thereby improving the printing quality.

[0024] 2. In the present invention, the mutual coordination between the disassembly mechanism and other structures is improved. When different types of paper need to be accommodated, the two sets of plug-in plates can be moved to release the limit between the plug-in plates and the top plate, and the top plate can be taken out for replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is an overall three-dimensional schematic diagram of a flexible connection multi-directional downward pressing print head assembly proposed by the utility model;

[0026] Figure 2 This is a schematic diagram of the internal cross-section of a shell of a print head assembly with a flexible connection and multi-directional downward pressure proposed by the present invention;

[0027] Figure 3 This is an enlarged structural diagram of point A of a flexible connection multi-directional downward pressing print head assembly proposed by the present invention;

[0028] Figure 4 This is a schematic overall three-dimensional diagram of the top plate of a print head assembly with a flexible connection and multi-directional downward pressure proposed by the present invention;

[0029] Figure 5 This is an enlarged structural diagram of point B of a flexible connection multi-directional downward pressing print head assembly proposed by the present invention;

[0030] Figure 6 This is an overall three-dimensional schematic diagram of the return spring of a print head assembly with a flexible connection and multi-directional downward pressure proposed by the present invention;

[0031] Figure 7 This is an overall three-dimensional schematic diagram of a plug-in board of a print head assembly with a flexible connection and multi-directional downward pressure proposed by the present invention.

[0032] Legend:

[0033] 1. Shell; 2. Bracket; 3. Frame to be processed; 4. Print head; 5. Pressing mechanism; 501. Support plate; 502. Electric telescopic plate; 503. Support roller; 504. Connecting plate; 505. Fixed plate; 506. Top plate; 507. Pressing plate; 508. Smoothing roller; 509. Connecting plate; 510. Contact column; 511. Connecting spring; 6. Disassembly mechanism; 601. Reset spring; 602. Plug-in plate; 603. Plug-in hole. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] Reference Figure 1 - Figure 2 The utility model provides an embodiment: a soft-connected multi-directional downward-pressing print head assembly, comprising a shell 1, a rear end of the shell 1 fixedly connected to a rack 3 to be processed, the shell 1 as a whole is a thermal transfer printer shell 1, a reversible cover is provided on the top, the outer wall of the rack 3 to be processed can be used to place paper to be processed, the inner side wall of the shell 1 is rotatably connected to a bracket 2, the front bottom end of the bracket 2 is fixedly connected to a print head 4, the bracket 2 can be flipped to expose the print head 4, and then the print head 4 can be installed and disassembled, the installation and disassembly work is the existing technology and will not be explained in detail here, the inner side wall of the bracket 2 is detachably installed with a downward-pressing mechanism 5; the downward-pressing mechanism 5 can further enable the paper to be processed to be smoothed in multiple directions.

[0036] Reference Figure 3 - Figure 5 The pressing mechanism 5 includes a top plate 506, and the bottom end of the top plate 506 is fixedly connected to the electric telescopic plate 502. The top plate 506 can be installed and disassembled as a whole to replace the top plate 506 of different models. The inner wall of the electric telescopic plate 502 is provided with an electric telescopic rod, and the movement of the electric telescopic rod drives the movable end of the telescopic plate to move downward. The electric telescopic rod is a prior art and will not be explained in detail here. The bottom end of the electric telescopic plate 502 is rotatably connected to the smoothing roller 508, and the movable end of the electric telescopic plate 502 is fixedly connected to the connecting plate 509. The movable end of the electric telescopic plate 502 moves, thereby driving multiple groups of connecting plates 509 to move downward. The bottom end of the top plate 506 is fixedly connected to the fixed plate 505, and the outer wall of the fixed plate 505 is rotatably connected to the connecting plate 504. The fixed plate 505 plays a connecting role, and the rotation center point of the connecting plate 504 is the bottom end of the fixed plate 505. The inner wall of the connecting plate 504 is elastically connected to the pressure plate 507 through the connecting spring 511. When the pressure plate 507 is in a vertical state, the connecting spring 511 is squeezed and the length becomes shorter. The outer wall of the connecting plate 509 is fixedly connected to the contact column 510, and the movement trajectories of the two are consistent. The inner wall of the bracket 2 is provided with a disassembly mechanism 6, through which the top plate 506 can be quickly installed and disassembled.

[0037] Reference Figure 3 - Figure 5The top of the support roller 503 is rotatably connected to the inner wall of the bottom end of the shell 1, and the top of the support plate 501 is rotatably connected to the support roller 503. The top of the support roller 503 can support the printing paper to be processed, and the outer wall of the top plate 506 can be detachably mounted on the inner side wall of the bracket 2. The two are detachable and can install top plates 506 of different models, and the installation method is plug-in. One end of the connecting spring 511 is fixedly connected to the inner wall of the connecting plate 504, and the other end of the connecting spring 511 is fixedly connected to the top of the pressure plate 507. The outer wall of the pressure plate 507 is slidably connected to the inner wall of the connecting plate 504. The elasticity of the connecting spring 511 enables the pressure plate 507 to have the function of resetting and squeezing. The inner wall of the connecting plate 504 is provided with an oblique groove, and the outer wall of the contact column 510 contacts the inner wall of the oblique groove. The vertical movement of the contact column 510 drives the connecting plate 504 to rotate to achieve the purpose of smoothing.

[0038] Reference Figure 5 - Figure 7 The disassembly mechanism 6 includes a return spring 601, one end of the return spring 601 is fixedly connected to the inner wall of the bracket 2, and the other end of the return spring 601 is fixedly connected to the plug-in plate 602. The outer wall of the plug-in plate 602 is slidably connected to the inner wall of the bracket 2. The elasticity of the return spring 601 enables the plug-in plate 602 to have the functions of resetting and limiting. Plug-in holes 603 are provided at both ends of the top plate 506. The side of the plug-in plate 602 away from the return spring 601 is plugged into the inner wall of the plug-in hole 603. The two are plugged together to limit and fix the top plate 506. The plug-in plate 602 is set to be L-shaped, and a slope is provided on one side of the top plate 506. The L-shaped front end protrudes, and the protruding setting is convenient for manual movement of the plug-in plate 602, and the slope is convenient for installation of the top plate 506.

[0039] Working principle: When the relevant personnel need to print the paper, they first open the cover of the shell 1, then put the paper to be processed on the processing rack 3, and then rotate the bracket 2 from the horizontal direction to the vertical direction, select the corresponding top plate 506 and plug it into the front end of the bracket 2, the outer wall of the top plate 506 will contact the inclined surfaces of the two sets of plug-in plates 602, so that the plug-in plates 602 move toward both ends and squeeze the reset spring 601. When the top plate 506 is fully inserted into the inner wall of the bracket 2, the plug-in plate 602 is reset due to the elasticity of the reset spring 601, and then the plug-in plate 602 and the plug-in holes 602 at both ends of the top plate 506 are connected. 03 Complete the plug-in and fixation. After the fixation is completed, reset the bracket 2 and rotate it to a horizontal state. Then adjust the paper to be processed to the top of the support roller 503 and the bottom of the smoothing roller 508. Then start the electric telescopic plate 502, and then the movable end of the telescopic plate moves downward and drives the connecting plate 509 and the contact column 510 to move downward. At the same time, due to the downward movement of the contact column 510, it moves along the inclined groove, causing the connecting plate 504 to rotate outward. At this time, due to the downward movement of the smoothing roller 508, the paper contact part will be squeezed, and the two sets of pressure plates 507 will rotate outward, thereby smoothing the paper to reduce paper wrinkles.

[0040] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A flexible connection multi-directional downward pressing print head assembly, comprising a housing (1), characterized in that: The rear end of the housing (1) is fixedly connected to a frame to be processed (3), the inner side wall of the housing (1) is rotatably connected to a bracket (2), the front bottom end of the bracket (2) is fixedly connected to a print head (4), and the inner side wall of the bracket (2) is detachably mounted with a pressing mechanism (5); The pressing mechanism (5) comprises a top plate (506), the bottom end of the top plate (506) is fixedly connected to an electric telescopic plate (502), the bottom end of the electric telescopic plate (502) is rotatably connected to a smoothing roller (508), the movable end of the electric telescopic plate (502) is fixedly connected to a connecting plate (509), the bottom end of the top plate (506) is fixedly connected to a fixed plate (505), the outer wall of the fixed plate (505) is rotatably connected to a connecting plate (504), the inner wall of the connecting plate (504) is elastically connected to a pressing plate (507) via a connecting spring (511), the outer wall of the connecting plate (509) is fixedly connected to a contact column (510), and the inner wall of the bracket (2) is provided with a disassembly mechanism (6).

2. The flexible connection multi-directional downward pressing print head assembly according to claim 1, characterized in that: A support plate (501) is fixedly connected to the inner wall of the bottom end of the shell (1), and a support roller (503) is rotatably connected to the top end of the support plate (501).

3. The flexible connection multi-directional downward pressing print head assembly according to claim 1, characterized in that: The outer wall of the top plate (506) is detachably mounted on the inner side wall of the bracket (2).

4. The flexible connection multi-directional downward pressing print head assembly according to claim 1, characterized in that: One end of the connecting spring (511) is fixedly connected to the inner wall of the connecting plate (504), and the other end of the connecting spring (511) is fixedly connected to the top of the pressing plate (507). The outer wall of the pressing plate (507) is slidably connected to the inner wall of the connecting plate (504).

5. The flexible connection multi-directional downward pressing print head assembly according to claim 1, characterized in that: An oblique groove is provided on the inner wall of the connecting plate (504), and the outer wall of the contact column (510) contacts the inner wall of the oblique groove.

6. The flexible connection multi-directional downward pressing print head assembly according to claim 1, characterized in that: The disassembly mechanism (6) includes a return spring (601), one end of which is fixedly connected to the inner wall of the bracket (2), and the other end of which is fixedly connected to a plug-in board (602), the outer wall of which is slidably connected to the inner wall of the bracket (2), and plug-in holes (603) are provided at both left and right ends of the top plate (506).

7. The flexible connection multi-directional downward pressing print head assembly according to claim 6, characterized in that: The side of the plug-in plate (602) away from the return spring (601) is plugged into the inner wall of the plug-in hole (603).

8. The flexible connection multi-directional downward pressing print head assembly according to claim 6, characterized in that: The plug board (602) is configured to be L-shaped, and has an inclined surface on one side facing the top board (506).

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