A printer carriage height adjustable device

By using an adjustable printhead height device, and employing a knob and bevel gear transmission system, the problems of media damage and blurry printing caused by the fixed printhead height of traditional printers are solved, enabling the printer to adapt to different media thicknesses and improving print quality.

CN224323757UActive Publication Date: 2026-06-05HENAN YOTO MASCH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HENAN YOTO MASCH CO LTD
Filing Date
2025-08-20
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

Traditional printers have a fixed printhead height design, which cannot be flexibly adjusted according to the thickness of the printing media. This results in an unsuitable distance between the printhead and the media, causing media damage, ink smudging, or blurry printing.

Method used

The spray truck adopts an adjustable spray truck height device, which uses a combination of knobs, bevel gears and lifting screws to achieve flexible adjustment of the spray truck height and ensure that the distance between the nozzle and the medium is appropriate.

Benefits of technology

It enables flexible adjustment based on the thickness of the printing medium, avoiding printhead scratching and blurry printing issues, and improving the printer's adaptability to media of different thicknesses and print quality.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224323757U_ABST
    Figure CN224323757U_ABST
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Abstract

The utility model relates to printer technical field, especially a kind of printer spray vehicle height adjustable device, including spray vehicle bottom plate, first L type side plate is fixedly connected in the left part of spray vehicle bottom plate upper end, second L type side plate is fixedly connected in the right part of spray vehicle bottom plate upper end, first L type side plate rear end and second L type side plate rear end are fixedly connected with fixed assembly, installation assembly is movably sleeved in the rear end of fixed assembly, adjusting assembly is fixedly connected in the front end of installation assembly.The utility model relates to a kind of printer spray vehicle height adjustable device, the distance between nozzle and medium can be flexibly adjusted according to the thickness of printing medium by the adjusting assembly set, both avoid the scratch problem when thick medium, also solve the printing fuzzy problem when thin medium, improve the adaptability and printing quality of printer to different thickness printing medium.
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Description

Technical Field

[0001] This utility model relates to the field of printer technology, and in particular to a printer printhead height adjustable device. Background Technology

[0002] The printer printhead is the core component that enables the printer to print. It carries key components such as the printhead, and the distance between the printhead and the printing medium directly affects the printing accuracy and effect.

[0003] However, traditional printer carriages have a fixed height design, which cannot be flexibly adjusted according to the thickness of the printing media. When using thicker printing media, the distance between the printhead and the media is too close, which can easily cause the printhead to scratch the media, resulting in media damage or printhead wear. It can also cause ink smudging, affecting print quality. Conversely, when using thinner printing media, the distance is too far, causing the ink to spray out unevenly, resulting in blurry prints and uneven colors. This fixed height design greatly limits the printer's ability to adapt to printing media of different thicknesses, making it difficult to meet diverse printing needs. Therefore, we have introduced a printer carriage height adjustable device. Utility Model Content

[0004] The main objective of this invention is to provide a printer printhead height adjustable device, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A printer carriage height adjustable device includes a carriage base plate. A first L-shaped side plate is fixedly connected to the upper left part of the carriage base plate, and a second L-shaped side plate is fixedly connected to the upper right part of the carriage base plate. A fixing component is fixedly connected to the rear ends of the first L-shaped side plate and the second L-shaped side plate. An installation component is movably sleeved at the rear end of the fixing component, and an adjustment component is fixedly connected to the front end of the installation component.

[0007] Preferably, the adjustment component includes a first fixing block and a second fixing block. There are two first fixing blocks, and a rotating rod is movably connected between the two first fixing blocks. A knob is fixedly connected to the left end of the rotating rod, and a first bevel gear is fixedly connected to the right end of the rotating rod. A second bevel gear is fixedly connected to the lower end of the second fixing block, and a lifting screw is fixedly connected to the lower end of the second bevel gear. A screw nut is threaded onto the outer surface of the lifting screw.

[0008] By adopting the above technical solution: the knob is easy to operate, the first bevel gear and the second bevel gear realize the power direction conversion, and the lifting screw and screw nut cooperate to realize height adjustment, providing power transmission for the height adjustment of the spray truck.

[0009] Preferably, the fixing component includes a lifting spray truck support plate, and two sliders are fixedly connected to the rear end of the lifting spray truck support plate. Each of the two sliders has a groove at its rear end. The front end of the lifting spray truck support plate is fixedly connected to the rear end of the first L-shaped side plate and the rear end of the second L-shaped side plate.

[0010] By adopting the above technical solution: the lifting spray truck can drive the spray truck base plate to lift and lower synchronously, and the slider and slide groove provide a guiding foundation for lifting and lowering, so as to realize the adjustment of the overall height of the spray truck.

[0011] Preferably, the mounting assembly includes a lifting spray truck backplate, the front end of which has two mounting slots, and each of the two mounting slots is fixedly connected to a slide rail.

[0012] By adopting the above technical solution: the lifting spray truck backplate provides the installation base, and the slide rail and slide groove cooperate to provide stable guidance for the lifting of the fixed components, ensuring a smooth lifting process.

[0013] Preferably, the two slide rails are movably fitted into the corresponding two slide grooves.

[0014] By adopting the above technical solution, the sliding rail and the sliding groove are fitted together, which restricts the movement direction of the fixed component and ensures that it only moves up and down in the vertical direction, thereby improving the stability of the adjustment process.

[0015] Preferably, the rear ends of the two first fixing blocks and the rear ends of the second fixing block are both fixedly connected to the front end of the lifting spray truck back plate, and the lower end of the screw nut is fixedly connected to the upper end of the lifting spray truck back plate.

[0016] By adopting the above technical solution, the adjustment component is firmly connected with the installation component and the fixing component, ensuring that the adjustment power can be effectively transmitted to the spray truck, thereby achieving height adjustment.

[0017] Preferably, the outer surface of the second bevel gear meshes with the outer surface of the first bevel gear.

[0018] By adopting the above technical solution, the rotational power in the horizontal direction is converted to the vertical direction, ensuring that the rotation of the knob can drive the lifting screw to rotate, thus providing a power transmission guarantee for height adjustment.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] In this invention, the operator rotates the knob in the adjustment assembly, causing the rotating rod and the first bevel gear to rotate. Through the meshing transmission of the first and second bevel gears, the horizontal power is transmitted to the vertical lifting screw, causing the lifting screw to rotate. Under the action of the screw nut, the lifting spray carriage in the fixing assembly moves up and down from the plate. During the movement, the slider at the rear end of the lifting spray carriage slides on the slide rail of the mounting assembly through the slide groove, ensuring the stability of the movement. The lifting spray carriage then drives the first L-shaped side plate, the second L-shaped side plate, and the spray carriage base plate to move synchronously, realizing the adjustment of the spray carriage height. Through this process, the distance between the printhead and the medium can be flexibly adjusted according to the thickness of the printing medium, which not only avoids the scratching problem when using thick media, but also solves the printing blurring problem when using thin media, improving the printer's adaptability to printing media of different thicknesses and the printing quality. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of a printer printhead height adjustable device according to the present invention;

[0022] Figure 2 This is a schematic diagram of the fixing component of a printer printhead height adjustable device according to the present invention;

[0023] Figure 3 This is a schematic diagram of the installation assembly of a printer printhead height adjustable device according to the present invention;

[0024] Figure 4 This is an exploded view of the installation assembly of a printer printhead height adjustable device according to this utility model;

[0025] Figure 5 This is a schematic diagram of the structure of the adjusting component of a printer printhead height adjustable device according to the present invention;

[0026] Figure 6 This utility model relates to an adjustable height device for a printer printhead. Figure 5 Enlarged view of the structure at point A in the image.

[0027] In the diagram: 1. Spray truck base plate; 2. First L-shaped side plate; 3. Second L-shaped side plate; 4. Fixing assembly; 5. Mounting assembly; 6. Adjusting assembly; 41. Lifting spray truck base plate; 42. Slider; 43. Slide groove; 51. Lifting spray truck back plate; 52. Mounting groove; 53. Slide rail; 61. First fixing block; 62. Second fixing block; 63. Rotating rod; 64. Knob; 65. First bevel gear; 66. Lifting screw; 67. Second bevel gear; 68. Screw nut. Detailed Implementation

[0028] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0029] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] Please see Figure 1-6 This utility model provides a technical solution:

[0032] A printer carriage height adjustable device includes a carriage base plate 1, a first L-shaped side plate 2 fixedly connected to the upper left of the carriage base plate 1, a second L-shaped side plate 3 fixedly connected to the upper right of the carriage base plate 1, a fixing component 4 fixedly connected to the rear ends of the first L-shaped side plate 2 and the second L-shaped side plate 3, an installation component 5 movably sleeved at the rear end of the fixing component 4, and an adjustment component 6 fixedly connected to the front end of the installation component 5.

[0033] In this embodiment, the adjusting component 6 includes a first fixing block 61 and a second fixing block 62. Two first fixing blocks 61 are provided, and a rotating rod 63 is movably connected between the two first fixing blocks 61. A knob 64 is fixedly connected to the left end of the rotating rod 63, and a first bevel gear 65 is fixedly connected to the right end of the rotating rod 63. A second bevel gear 67 is fixedly connected to the lower end of the second fixing block 62, and a lifting screw 66 is fixedly connected to the lower end of the second bevel gear 67. A screw nut 68 is threaded onto the outer surface of the lifting screw 66. The fixing component 4 includes a lifting spray truck support plate 41, and two sliders 42 are fixedly connected to the rear end of the lifting spray truck support plate 41. Both sliders 42 have openings at their rear ends. The sliding groove 43 connects the front end of the lifting spray truck from the plate 41 to the rear end of the first L-shaped side plate 2 and the second L-shaped side plate 3. The mounting assembly 5 includes a lifting spray truck back plate 51 with two mounting slots 52 at its front end. Each mounting slot 52 has a slide rail 53 fixedly connected to it. The two slide rails 53 are movably fitted into the corresponding two sliding grooves 43. The rear ends of the two first fixing blocks 61 and the rear ends of the second fixing blocks 62 are fixedly connected to the front end of the lifting spray truck back plate 51. The lower end of the screw nut 68 is fixedly connected to the upper end of the lifting spray truck from the plate 41. The outer surface of the second bevel gear 67 meshes with the outer surface of the first bevel gear 65.

[0034] It should be noted that this utility model is a printer printhead height adjustable device. During use, when it is necessary to adjust the printer printhead height according to different printing media thicknesses, the operator can rotate the knob 64 in the adjusting component 6. The knob 64 drives the rotating rod 63 to rotate between the two first fixed blocks 61. When the rotating rod 63 rotates, the first bevel gear 65 at its right end rotates accordingly. Since the first bevel gear 65 is meshed with the second bevel gear 67, it will drive the second bevel gear 67 to rotate, realizing the transmission of power from the horizontal direction to the vertical direction. When the second bevel gear 67 rotates, the lifting screw 66 fixedly connected to its lower end also rotates. As the lifting screw 66 rotates, the screw nut 68, which is threaded on the outer surface of the lifting screw 66, drives the lifting printhead to move up and down from the plate 41 under the action of the thread. During the movement of the lifting printhead from the plate 41, the two sliders 42 at its rear end slide on the two slide rails 53 of the lifting printhead back plate 51 in the mounting assembly 5 through the slide groove 43, ensuring that the lifting printhead from the plate 41 moves stably in the vertical direction. When the lifting printhead from the plate 41 moves up and down, it will drive the first L-shaped side plate 2 and the second L-shaped side plate 3, which are fixedly connected to its front end, and the printhead base plate 1, which are fixedly connected to them, to move synchronously, thereby realizing the adjustment of the printer printhead height to adapt to printing media of different thicknesses.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A printer printhead height adjustable device, comprising a printhead base plate (1), characterized in that: The upper left side of the spray truck base plate (1) is fixedly connected to a first L-shaped side plate (2), and the upper right side of the spray truck base plate (1) is fixedly connected to a second L-shaped side plate (3). The rear ends of the first L-shaped side plate (2) and the rear ends of the second L-shaped side plate (3) are fixedly connected to a fixing component (4). The rear end of the fixing component (4) is movably sleeved with an installation component (5), and the front end of the installation component (5) is fixedly connected to an adjustment component (6). The adjustment component (6) includes a first fixing block (61) and a second fixing block (62). There are two first fixing blocks (61), and a rotating rod (63) is movably connected between the two first fixing blocks (61). A knob (64) is fixedly connected to the left end of the rotating rod (63), and a first bevel gear (65) is fixedly connected to the right end of the rotating rod (63). A second bevel gear (67) is fixedly connected to the lower end of the second fixing block (62), and a lifting screw (66) is fixedly connected to the lower end of the second bevel gear (67). A screw nut (68) is threaded onto the outer surface of the lifting screw (66).

2. The printer printhead height adjustable device according to claim 1, characterized in that: The fixed component (4) includes a lifting spray truck plate (41), and two sliders (42) are fixedly connected to the rear end of the lifting spray truck plate (41). The rear ends of the two sliders (42) are each provided with a groove (43). The front end of the lifting spray truck plate (41) is fixedly connected to the rear end of the first L-shaped side plate (2) and the rear end of the second L-shaped side plate (3).

3. The printer printhead height adjustable device according to claim 1, characterized in that: The installation assembly (5) includes a lifting spray truck back plate (51), and the front end of the lifting spray truck back plate (51) has two installation slots (52), and each of the two installation slots (52) is fixedly connected with a slide rail (53).

4. The printer printhead height adjustable device according to claim 3, characterized in that: The two slide rails (53) are respectively movably fitted into the corresponding two slide grooves (43).

5. The printer printhead height adjustable device according to claim 1, characterized in that: The rear ends of the two first fixing blocks (61) and the rear ends of the second fixing block (62) are fixedly connected to the front end of the lifting spray truck back plate (51), and the lower end of the screw nut (68) is fixedly connected to the upper end of the lifting spray truck from plate (41).

6. The printer printhead height adjustable device according to claim 1, characterized in that: The outer surface of the second bevel gear (67) meshes with the outer surface of the first bevel gear (65).