Mechanism capable of balancing and adjusting pressure of printing head

Abstract

The utility model discloses a mechanism capable of balancing and adjusting the pressure of a printing head. The mechanism comprises the printing head, a printing head support, a film pressure sensor, a sensor pad, a spring, a pressing gasket, an indicator lamp plate, an adjusting screw and an upper shell. And the printing head is fixedly connected with the printing head bracket through a screw. The thin film pressure sensor is pasted above the positioning groove of the printing paper support. And the adjusting screw is mounted at the mounting hole of the upper shell right above the thin film pressure sensor. The lower end of the adjusting screw abuts against the pressing gasket, the pressing gasket presses the spring and the sensor pad and the thin film pressure sensor below, and meanwhile the thin film pressure sensor is connected to the indicator lamp panel. When the printing head is adjusted, the pressing gasket at the lower end of the adjusting screw downwards compresses the spring under the action of the adjusting screw, and the spring presses the sensor pad and the film pressure sensor. The thin film pressure sensor sends data to the indicator lamp panel, and the pressure of the printing head is adjusted through data comparison. The device is simple in structure and high in reliability.

Description

Technical Field

[0001] This utility model relates to the field of printers, and in particular to a mechanism for balancing and adjusting printhead pressure. Background Technology

[0002] In modern society, printers are becoming increasingly common. They are also widely used in medical laboratories. As the core component of a printer, the printhead's pressure adjustment directly affects print quality and the lifespan of the device. Different types of paper often require different printhead pressures. However, the printhead pressure applied to the paper in most commercially available printers is not adjustable. Furthermore, most printheads on the market are either spring-loaded in the middle or at both ends, often resulting in uneven pressure distribution. Therefore, there is a pressing need for a device that can adjust printhead pressure and monitor its uniformity. Summary of the Invention

[0003] To address the problems in current technology, this invention provides a mechanism for balancing and adjusting printhead pressure, which can adjust the printhead pressure and balance the pressure at both ends of the printhead.

[0004] To achieve the above objectives, this utility model provides the following technical solution: when installing the printhead, the adjusting screw is rotated to change the pressure at both ends of the printhead, and the pressure value of the printhead is monitored by a thin-film pressure sensor.

[0005] Preferably, when installing the printhead, the adjusting screw can be turned downwards. The pressure washer at the lower end of the adjusting screw compresses the spring downwards, pressing against the sensor pad and transmitting force to the thin-film pressure sensor. The thin-film pressure sensor sends pressure data to the indicator light panel. If the readings of the thin-film pressure sensors on both sides are the same, the pressure on both sides is consistent, and the LED on the indicator light panel displays green. When the pressures are different, the LED on the indicator light panel displays red.

[0006] The advantages of this invention are as follows: the printhead pressure can be adjusted by rotating the adjusting screw. Furthermore, a thin-film pressure sensor monitors the printhead pressure value in real time. For installers, simply observing the red and green lights on the indicator panel is sufficient to balance and adjust the printhead pressure. This structure is simple and reliable, making it more convenient for operators to use. Attached Figure Description

[0007] Figure 1 This is a perspective view of the present invention.

[0008] Figure 2 This is the front view of this utility model.

[0009] Figure 3This is the left view of this utility model.

[0010] Figure 4 This is a top view of the present invention.

[0011] Figure 5 This is an exploded view of this utility model.

[0012] In the diagram: 1. Printhead; 2. Printhead support; 3. Thin-film pressure sensor; 4. Sensor pad; 5. Spring; 6. Pressure pad; 7. Indicator panel; 8. Adjusting screw; 9. Upper housing. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] In the description of this utility model, it should be noted that the terms "upper", "lower", "front end", "rear end", "both ends", "one end", "the other end", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are 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.

[0015] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" 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.

[0016] Please see Figures 1 to 5The present invention provides an embodiment of a mechanism for balancing and adjusting printhead pressure, comprising a printhead (1), a printhead support (2), a thin-film pressure sensor (3), a sensor pad (4), a spring (5), a clamping pad (6), an indicator light panel (7), an adjusting screw (8), and an upper housing (9). The printhead (1) is fixedly connected to the printhead support (2) by screws; the thin-film pressure sensor (3) is attached above the positioning groove of the paper holder (2); the adjusting screw (8) is installed at the mounting hole of the upper housing (9) directly above the thin-film pressure sensor (3); the lower end of the adjusting screw (8) presses against the clamping pad (6), and the clamping pad (6) presses against the spring (5) and the sensor pad (4) below, transmitting force to the thin-film pressure sensor (3). At the same time, the thin-film pressure sensor (3) is connected to the indicator light panel (7), and the indicator light panel (7) is fixed to the printhead support (2) by screws.

[0017] Working principle: When installing the printhead (1), the adjusting screw (8) can be rotated downwards. The pressure washer (6) at the lower end of the adjusting screw (8) is compressed downwards by the adjusting screw (8) to compress the spring (5). The spring (5) presses against the sensor pad (4), transmitting the force to the thin-film pressure sensor (3). The thin-film pressure sensor (3) sends the pressure data to the indicator panel (7). If the values ​​of the thin-film pressure sensors (3) at both ends are the same, the pressure at both ends is consistent, and the LED on the indicator panel (7) displays green. When the pressure is different, the LED on the indicator panel (7) displays red, and the installer can use this to determine whether the printhead pressure is adjusted correctly.

[0018] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A mechanism for balancing and adjusting printhead pressure, characterized in that: The device includes a printhead (1), a printhead bracket (2), a thin-film pressure sensor (3), a sensor pad (4), a spring (5), a clamping pad (6), an indicator light panel (7), an adjusting screw (8), and an upper housing (9). The printhead (1) and the printhead bracket (2) are fixedly connected by screws. The thin-film pressure sensor (3) is attached above the positioning groove of the paper holder (2). The adjusting screw (8) is installed at the mounting hole of the upper housing (9) directly above the thin-film pressure sensor (3). The lower end of the adjusting screw (8) presses against the clamping pad (6), which presses against the spring (5) and the sensor pad (4) below, transmitting force to the thin-film pressure sensor (3). At the same time, the thin-film pressure sensor (3) is connected to the indicator light panel (7), which is fixed to the printhead bracket (2) by screws.

2. The mechanism for balancing and adjusting printhead pressure according to claim 1, characterized in that: When the printhead (1) is installed, the adjusting screw (8) can be rotated to make it downward; the pressure pad (6) at the lower end of the adjusting screw (8) is compressed downward by the adjusting screw (8) to compress the spring (5), and the spring (5) presses against the sensor pad (4), transmitting the force to the thin film pressure sensor (3).

3. The mechanism for balancing and adjusting printhead pressure according to claim 1, characterized in that: The thin-film pressure sensor (3) sends pressure data to the indicator board (7). If the values ​​of the thin-film pressure sensors (3) at both ends are the same, the pressure at both ends is consistent, and the LED on the indicator board (7) displays green. When the pressure is different, the LED on the indicator board (7) displays red.

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