A printer with carbon tape pressure detection function

Abstract

A printer with carbon tape pressure detection function, the printer comprises a rubber roller mechanism, an adjusting mechanism and a rack for fixing the rubber roller mechanism and the adjusting mechanism, a gap is formed between the adjusting mechanism and the rubber roller mechanism for the label paper to pass through, and the adjusting mechanism is used for adjusting the pressure between the print head arranged on the adjusting mechanism and the rubber roller mechanism; the adjusting mechanism comprises a fixed support, a fixer, a mounting block, a pressure sensor, a print head and an adjusting assembly, the print head and the pressure sensor are mounted on the fixer through the mounting block, one end of the fixer is rotationally connected with one side of the fixed support, the adjusting assembly is mounted on the other side of the fixed support and connected with the other end of the fixer, the adjusting assembly is used for adjusting the pressing force of the print head and transmitting the pressing force to the pressure sensor, so that the pressure sensor can transmit the pressing force to the display screen of the printer and display.

Description

Technical Field

[0001] This utility model relates to the field of printer technology, and in particular to a printer with ribbon pressure detection function. Background Technology

[0002] Printers are widely used in people's daily lives, especially in offices where they are standard equipment. Currently, printer adjustment mechanisms cannot accurately determine the actual pressure applied to the ribbon during adjustment, leading to uneven print density and even affecting print clarity. Utility Model Content

[0003] This invention provides a printer with ribbon pressure detection function, aiming to solve at least one of the technical problems existing in the prior art.

[0004] This utility model provides a printer with a ribbon pressure detection function. The printer includes a rubber roller mechanism, an adjustment mechanism, and a frame for fixing the rubber roller mechanism and the adjustment mechanism. A gap is formed between the adjustment mechanism and the rubber roller mechanism for label paper to pass through. The adjustment mechanism is used to adjust the pressure between the print head disposed on the adjustment mechanism and the rubber roller mechanism.

[0005] The adjustment mechanism includes a fixed bracket, a retainer, a mounting block, a pressure sensor, a printhead, and an adjustment assembly. The printhead and pressure sensor are mounted on the retainer via the mounting block. One end of the retainer is rotatably connected to one side of the fixed bracket. The adjustment assembly is mounted on the other side of the fixed bracket and connected to the other end of the retainer. It is used to adjust the clamping force of the printhead and transmit the clamping force to the pressure sensor, so that the pressure sensor can transmit the clamping force to the printer's display screen for display.

[0006] In a printer according to one embodiment of the present invention, the fixture includes a rotating shaft and a cantilever structure. The cantilever structure includes a cantilever beam and a mounting surface connected to one end of the cantilever beam. The pressure sensor is mounted on the mounting surface via the mounting block. The free end of the cantilever beam is rotatably connected to the fixed bracket via the rotating shaft.

[0007] In a printer according to one embodiment of the present invention, the cantilever beam has a fixed end connected to the mounting surface and a free end away from the mounting surface, a recess is formed between the free end and the fixed end, or the width of the cantilever beam gradually decreases from the free end toward the fixed end.

[0008] In a printer according to one embodiment of the present invention, the ratio of the width of the free end to the width of the fixed end is not less than 1.36; and / or, the ratio of the width of the free end to the length of the cantilever beam is not greater than 0.5.

[0009] In a printer according to one embodiment of the present invention, the adjustment mechanism further includes an elastic element, the two ends of which are respectively connected to the cantilever beam and the fixed bracket, for maintaining an elastic force in the direction of the adjustment assembly to drive the mounting surface facing the adjustment assembly to rotate.

[0010] In a printer according to one embodiment of the present invention, the cantilever beam includes a first cantilever beam and a second cantilever beam. The first cantilever beam has a first gap with the fixed bracket, and the second cantilever beam has a second gap with the fixed bracket. The first gap is larger than the second gap, and at least a portion of the elastic element is disposed in the first gap.

[0011] In a printer according to one embodiment of the present invention, a strip-shaped hole is provided on the mounting surface, and the mounting block is installed in the strip-shaped hole.

[0012] In a printer according to one embodiment of the present invention, the adjustment assembly includes an adjustment wheel, a deformable component, an adjustment rod, and a fixed block mounted on the fixed bracket. The adjustment wheel is rotatably mounted in the fixed block and protrudes from both sides of the fixed block. The adjustment rod passes through the fixed block and can cooperate with the adjustment wheel to squeeze the deformable component to adjust the clamping force of the print head.

[0013] In a printer according to one embodiment of the present invention, the adjustment component includes a pressure shaft, and the fixing block is mounted on the fixing bracket via the pressure shaft.

[0014] In a printer according to one embodiment of the present invention, the printer includes a cable fixing structure and a high-frequency cable. The cable fixing structure includes a shielding layer made of conductive material and a fixing frame. The pressure sensor is connected to the signal processing board of the printer through the high-frequency cable. The shielding layer is wrapped around the outside of the high-frequency cable. The fixing frame fixes the shielding layer wrapped around the outside of the high-frequency cable to the fixing device and the fixing bracket. The shielding layer and the fixing bracket are electrically connected.

[0015] The technical solution provided in this application embodiment can include the following beneficial effects: This application designs a printer with ribbon pressure detection function, which includes a rubber roller mechanism, an adjustment mechanism, and a frame. Both the rubber roller mechanism and the adjustment mechanism are mounted on the frame. The adjustment mechanism includes a fixed bracket, a retainer, a mounting block, a pressure sensor, a printhead, and an adjustment component. The printhead and pressure sensor are mounted on the retainer via the mounting block. One end of the retainer is rotatably connected to one side of the fixed bracket. The adjustment component is mounted on the other side of the fixed bracket and connected to the other end of the retainer. It is used to adjust the clamping force of the printhead and transmit the clamping force to the pressure sensor, enabling the pressure sensor to transmit the clamping force to the printer's display screen for display. This transforms the original pressure adjustment based on feel into precise digital control, allowing the operator to directly see the pressure value on the screen, making the settings standardized and recordable. Insufficient pressure leads to blurry and unclear printing; excessive pressure accelerates the wear of the printhead and rubber roller, and may even wrinkle labels or ribbons. Therefore, this application ensures that after each replacement of consumables or the printhead, the pressure setting can be quickly restored to the optimal setting, guaranteeing stable quality for large-volume printing.

[0016] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of an adjustment mechanism provided in one embodiment of this application;

[0019] Figure 2 yes Figure 1 A schematic diagram of the adjustment mechanism from another angle;

[0020] Figure 3 yes Figure 1 An exploded view of the regulating mechanism;

[0021] Figure 4 yes Figure 3 Partial structural diagram of the adjustment mechanism in the middle;

[0022] Figure 5 yes Figure 4 A partially exploded view of the regulating mechanism;

[0023] Figure 6 yes Figure 1 A schematic diagram of the cantilever structure in the diagram;

[0024] Figure 7 yes Figure 3 An exploded view of the adjustment components;

[0025] Figure 8 yes Figure 7 A partial schematic diagram of the adjustment components.

[0026] Explanation of reference numerals in the attached figures:

[0027] 100. Adjustment mechanism;

[0028] 10. Fixed bracket; 20. Fixing device; 21. Cantilever structure; 211. Cantilever beam; 212. Mounting surface; 213. Strip hole; 22. Rotating shaft; 30. Mounting block; 40. Pressure sensor; 50. Adjustment assembly; 51. Fixed block; 52. Adjusting wheel; 53. Adjusting rod; 54. Deformable part; 55. Pressing part; 551. Pressing nut; 552. Pressing sleeve; 56. Pressure shaft; 57. Rotating handle; 60. Elastic element. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0030] It should also be understood that the terminology used in this utility model specification is merely for describing specific aspects of the present application. It is important to understand that terms such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present application 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 the present application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0031] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0032] like Figures 1 to 8 As shown, this application provides a printer with a ribbon pressure detection function. The printer includes a rubber roller mechanism, an adjustment mechanism 100, and a frame for fixing the rubber roller mechanism and the adjustment mechanism 100. A gap is formed between the adjustment mechanism 100 and the rubber roller mechanism for the label paper to pass through. The adjustment mechanism 100 is used to adjust the pressure between the print head and the rubber roller mechanism, which is mounted on the adjustment mechanism 100, to ensure reliable contact between the print head and the ribbon during printing. The frame also includes a drive mechanism, which is connected to the rubber roller assembly of the rubber roller mechanism. The drive mechanism drives the rubber roller assembly to rotate, thereby moving the label paper along a preset path through friction. The label paper can be printing media or a ribbon; this application does not limit the use of either.

[0033] In an optional embodiment, the adjustment mechanism 100 includes a fixed bracket 10, a retainer 20, a mounting block 30, a pressure sensor 40, a printhead, and an adjustment assembly 50. The printhead and pressure sensor 40 are mounted on the retainer 20 via the mounting block 30. One end of the retainer 20 is rotatably connected to one side of the fixed bracket 10. The adjustment assembly 50 is mounted on the other side of the fixed bracket 10 and connected to the other end of the retainer 20. It is used to adjust the clamping force of the printhead and transmit the clamping force to the pressure sensor 40, enabling the pressure sensor 40 to transmit the clamping force to the printer's display screen for display. This transforms the previously intuitive pressure adjustment into precise digital control, allowing the operator to directly see the pressure value on the screen, making the settings standardized and recordable. Insufficient pressure leads to blurry and unclear printing; excessive pressure accelerates the wear of the printhead and roller assembly, and may even wrinkle labels or ribbons. Therefore, this application ensures that after each replacement of consumables or the printhead, the pressure setting can be quickly restored to the optimal level, guaranteeing stable quality for high-volume printing.

[0034] By adopting the above technical solution, this application uses the lever principle of the retainer 20 to convert the linear motion of the adjusting component 50 into the pressing action of the print head, and integrates the pressure sensor 40 into the force transmission path. This transforms the original pressure adjustment based on feel into precise digital control, allowing operators to directly see the pressure value on the screen, making the settings standardized and recordable. It also avoids premature print head damage and deformation of the rubber rollers on the roller assembly due to improper pressure settings, reducing printer maintenance costs and downtime. Furthermore, it eliminates the need for experienced technicians; ordinary operators can perform precise pressure adjustments after simple training, improving the convenience and efficiency of equipment use.

[0035] In an optional embodiment, the fixture 20 includes a rotating shaft 22 and a cantilever structure 21. The cantilever structure 21 includes a cantilever beam 211 and a mounting surface 212 connected to one end of the cantilever beam 211. A pressure sensor 40 is mounted on the mounting surface 212 via a mounting block 30. The free end of the cantilever beam 211 is rotatably connected to the fixed bracket 10 via the rotating shaft 22. When the operator operates the adjustment component 50, the adjustment component 50 applies a force to the point of application of the cantilever beam 211. This force attempts to rotate the entire cantilever beam 211 structure around the rotating shaft 22, causing the mounting surface 212 to move downward, thereby pressing the printhead against the roller and ultimately creating pressure on the printhead. The pressure sensor 40 is directly mounted on the mounting surface 212, so it can directly and in real time measure the magnitude of this downward pressure. At the same time, the pressure sensor 40 and the printhead are both fixed on the same rigid mounting block 30 and mounting surface 212, so the pressure they bear is synchronous and consistent, avoiding measurement errors caused by friction, structural deformation, and other factors, resulting in very accurate results. In addition, the cantilever beam 211 structure itself has excellent rigidity, which can ensure that the print head remains stable during the pressing process and will not tilt or shake, thereby ensuring uniform pressure and print quality.

[0036] In an optional embodiment, the cantilever beam 211 has a fixed end connected to the mounting surface 212 and a free end away from the mounting surface 212. A recess is formed between the free end and the fixed end, so that when the cantilever beam 211 is subjected to bending force, the deformation and stress will be concentrated in this carefully designed arc-shaped recess. By guiding the stress to this controllable area and using a smooth arc transition, catastrophic stress peaks at structural abrupt changes can be effectively avoided. This ensures that the critical fixed end of the cantilever beam 211 connected to the mounting surface 212 will not crack due to excessive stress, making the stress distribution more uniform. This greatly reduces the risk of material fatigue under repeated pressing actions and extends the service life of the component. Alternatively, the width of the cantilever beam 211 may gradually decrease from the free end toward the fixed end, so that unnecessary materials can be removed while ensuring strength, achieving a lightweight design, saving costs and reducing inertia, achieving the most uniform stress distribution, avoiding excessive stress in any local area, thereby maximizing the efficiency and lifespan of the structure, so that under long-term, repeated stress cycles, the cantilever beam 211 of the adjustment mechanism 100 will not be damaged due to fatigue, thereby ensuring the long-term accuracy and stability of the pressure detection function.

[0037] In one optional implementation, the ratio of the width of the free end to the width of the fixed end is not less than 1.36, so that the maximum bending stress at each point on the cantilever beam 211 is as close to equal as possible, ensuring the most uniform stress distribution, significantly reducing the risk of stress concentration, and enabling the cantilever beam 211 to withstand millions or even tens of millions of pressing cycles without cracking or breaking. This allows for the removal of as much unnecessary material as possible while ensuring strength and safety, reducing the weight of moving parts, and making the start-stop response of the printhead assembly faster, which has a positive impact on improving printing speed. It can also reduce material usage and lower manufacturing costs.

[0038] In an alternative implementation, the ratio of the width of the free end to the length of the cantilever beam 211 is no greater than 0.5, ensuring that the cantilever beam 211 has sufficient lateral stiffness and stability to prevent harmful torsional or lateral vibrations.

[0039] In an optional embodiment, the adjustment mechanism 100 further includes an elastic element 60, the two ends of which are connected to the cantilever beam 211 and the fixed bracket 10, respectively. The elastic element 60 is used to maintain an elastic force in the direction of the adjustment assembly 50 to drive the mounting surface 212 to rotate toward one side of the adjustment assembly 50. This ensures that the movement of the cantilever beam 211 is unidirectionally controlled and always provides a clear force to the cantilever beam 211, making it tend to move toward the adjustment assembly 50. It also eliminates all possible gaps in the adjustment mechanism 100, ensuring the accuracy and responsiveness of the movement.

[0040] For example, during high-speed operation of the printer, without the constant elastic force of the elastic element 60, the printhead would frequently lift and press down, potentially creating tiny gaps and impacts at the connection points, leading to noise and component wear. When the operator needs to reduce pressure, they need to rotate the adjustment assembly 50 in the opposite direction. At this time, the force of the elastic element 60 assists this action, helping the printhead to lift smoothly, making the adjustment process easier and smoother. Therefore, this application, through the preload of the elastic element 60, can always eliminate these gaps, making the operation smooth and quiet, protecting mechanical components, and effectively preventing damage to the printhead and roller due to dry friction collisions without pressure control, thus protecting both the printhead and roller components in the printer.

[0041] In an optional embodiment, the cantilever beam 211 includes a first cantilever beam 211 and a second cantilever beam 211. The first cantilever beam 211 has a first gap with the fixed support 10, and the second cantilever beam 211 has a second gap with the fixed support 10. The first gap is larger than the second gap. At least a portion of the elastic element 60 is disposed within the first gap, preventing interference between the elastic element 60 and the fixed support 10 or other components, ensuring that it can only extend and retract along the designed direction, and ensuring reliable operation. The large first gap provides sufficient space for the elastic element 60 to extend and retract, while the small second gap acts as a physical limiter on the movement of the cantilever beam 211. In the event of pressure adjustment or a malfunction, the elastic element 60 pulls the cantilever beam 211 assembly toward the support, and the second cantilever beam 211 first contacts the fixed support 10. This contact point becomes a mechanical limiter, preventing damage to the entire mechanism due to excessive elastic rebound, or keeping the print head in a safe initial position, providing a guiding function and ensuring the entire frame rotates smoothly without swaying left or right.

[0042] In an optional embodiment, the mounting surface 212 is provided with a strip hole 213, and the mounting block 30 is installed in the strip hole 213 so that the position of the mounting block 30 can be adjusted to ensure the parallelism adjustment between the print head and the rubber roller; at the same time, it can also reduce the manufacturing difficulty and cost.

[0043] In an optional embodiment, the adjustment assembly 50 includes an adjustment wheel 52, a deformable element 54, an adjustment rod 53, and a fixed block 51 mounted on the fixed bracket 10. The adjustment wheel 52 is rotatably mounted in the fixed block 51 and protrudes from both sides of the fixed block 51. The adjustment rod 53 passes through the fixed block 51 and can cooperate with the adjustment wheel 52 to squeeze the deformable element 54 to adjust the clamping force of the print head. This allows for adjustable control of the contact pressure between the ribbon and the printing medium during printer operation, ensuring uniformity, flatness, and stability of the print density. Simultaneously, the adjustment wheel 52 can be freely adjusted to a suitable pressure position according to the different thicknesses of the printing medium and the printing speed, achieving precise control of the print head clamping force and ensuring pressure balance between the printing medium and the ribbon.

[0044] For example, the printhead is rotatably connected to the fixed bracket 10 via a rotating shaft 22 on the side away from the adjustment component 50. The fixed bracket 10 is provided with an arc-shaped track groove for engaging with the limiting pin on the printhead, thereby achieving a floating installation of the printhead. This allows for precise control of the printing pressure through the deformation capability of the deformable component 54. Since the adjustment wheel 52 protrudes from both sides of the fixed block 51, it is not obstructed after the ribbon is installed, and pressure adjustment can still be performed, ensuring consistent print quality and significantly reducing the technical requirements for operators.

[0045] In an optional embodiment, the fixing block 51 includes a first mounting surface 212 and a second mounting surface 212. The first mounting surface 212 is provided with a first groove, and the second mounting surface 212 is provided with a second groove. The adjusting wheel 52 is rotatably installed in the first groove and the second groove, which realizes the stable bearing and precise positioning of the adjusting wheel 52, and simplifies the assembly process.

[0046] In an optional embodiment, the adjusting rod 53 includes a screw structure and a limiting member. The screw structure is installed in the first mounting surface 212 and the second mounting surface 212 through the limiting member. The adjusting wheel 52 is threadedly connected to the screw structure, so that the screw structure can form an integral structure with the fixing block 51, realizing precise fine adjustment and mechanical self-locking of the print head pressure. At the same time, the double mounting surfaces 212 of the fixing block 51 can be used to achieve stable support.

[0047] In an optional embodiment, the adjustment assembly 50 further includes a pressing member 55. The fixing block 51 is provided with a receiving groove, and the pressing member 55 is disposed in the receiving groove. One end of the screw structure extending into the fixing block 51 is connected to the pressing member 55. This not only evenly distributes the axial thrust of the screw structure to the deformable member 54, avoiding local stress concentration that could lead to premature failure of the deformable member 54, but also ensures that the pressing member 55 moves only axially by being constrained by the side wall of the receiving groove. When the pressure exceeds the limit, the pressing member 55 contacts the bottom of the receiving groove to form a mechanical hard limit, thereby optimizing the pressure transmission path and load balancing of the print head, and also improving the stability of the adjustment accuracy.

[0048] In an optional embodiment, the pressure member 55 includes a pressure nut 551 and a pressure sleeve 552. The screw structure is threadedly connected to the pressure nut 551, and the pressure sleeve 552 is fitted on the outside of the pressure nut 551, thereby achieving a balance between fine control of pressure regulation and long-term durability.

[0049] In an optional embodiment, the deformable element 54 includes an adjusting spring and an adjusting plug. The adjusting plug is installed at one end of the screw structure that extends out of the fixing block 51. The two ends of the adjusting spring abut against the adjusting plug and the adjusting wheel 52, respectively, so as to convert the linear movement of the adjusting wheel 52 along the screw structure into a controllable elastic pressure output, thereby realizing the dynamic adjustment and adaptability of the print head clamping force, and greatly improving the system durability while ensuring the adjustment accuracy.

[0050] In an optional embodiment, the deformable element 54 includes a connecting shaft, one end of which passes through the screw structure and is secured by a retaining ring. An adjusting plug is movably mounted on the other end of the connecting shaft, extending out of the screw structure. When the adjusting wheel 52 presses down on the adjusting spring, the adjusting spring undergoes elastic deformation. The greater the deformation, the greater the pressure, and thus the greater the clamping force of the printhead on the ribbon and printing medium. Furthermore, this application can also achieve self-adjusting pressure compensation during the movement of the ribbon and printing medium based on the elastic deformation characteristics of the adjusting spring.

[0051] In an alternative embodiment, the adjusting plug is made of silicone material, which can prevent the adjusting component 50 from scratching other parts during use and thus provide protection.

[0052] In an optional embodiment, the adjustment component 50 includes a pressure shaft 56, and a fixing block 51 is mounted on the fixing bracket 10 via the pressure shaft 56. This can be used to adjust the axial direction of the adjustment component 50 to accommodate the width of different printing media, i.e., to make flexible adjustments according to different paper widths.

[0053] In an alternative embodiment, the pressure shaft 56 has a flat portion, and the fixing block 51 has a flat hole 311 fixed in the flat portion. The flat portion can serve as an assembly reference to ensure that the fixing block 51 is accurately positioned on the pressure shaft 5636 and to avoid circumferential runout.

[0054] In one alternative implementation, the pressure shaft 56 is a milled flat shaft, which can prevent circumferential runout of the fixing block 51. Alternatively, the pressure shaft 56 is a smooth shaft, and the fixing block 51 can be tightened against the smooth shaft with an M3 screw to ensure that the fixing block 51 is accurately positioned on the pressure shaft 56 and avoid circumferential runout.

[0055] In an alternative embodiment, the adjustment assembly 50 further includes a rotary handle 57 mounted at one end of the pressure shaft 56.

[0056] In one optional embodiment, the printer includes a cable fixing structure and a high-frequency cable. The cable fixing structure includes a shielding layer made of conductive material and a fixing bracket. The pressure sensor 40 is connected to the printer's signal processing board via the high-frequency cable. The shielding layer wraps around the outside of the high-frequency cable. The fixing bracket fixes the shielding layer wrapped around the outside of the high-frequency cable to the fixing device 20 and the fixing bracket 10. The shielding layer and the fixing bracket 10 are electrically connected. This not only facilitates the orderly and neat arrangement of the high-frequency cables inside the printer, thereby avoiding the problem of mutual tangling caused by the large number of high-frequency cables, but also reduces signal interference between high-frequency cables.

[0057] In an optional embodiment, the cable fixing structure further includes an elastic structure. The shielding layer is wrapped around the outside of the high-frequency cable, and the fixing frame fixes the elastic structure and the shielding layer wrapped around the high-frequency cable to the fixing device 20 and the fixing bracket 10. In this embodiment, the elastic structure is disposed between the fixing frame and the shielding layer, and one end of the elastic structure abuts against the fixing device 20 and the fixing bracket 10, while the other end of the elastic structure abuts against the fixing frame. This allows the shielding layer to adhere to the fixing device 20 and the fixing bracket 10, and the shielding layer is electrically connected to the fixing device 20 and the fixing bracket 10.

[0058] Specifically, the elastic structure can be any type of elastic body with elastic force. The shielding layer wrapped around the high-frequency cable can adhere to the retainer 20 and the fixing bracket 10 under the action of elastic force. In one embodiment, the shielding layer, the retainer 20, and the fixing bracket 10 are all made of conductive materials. This allows the shielding layer to be electrically connected to the retainer 20 and the fixing bracket 10. By grounding through the retainer 20 and the fixing bracket 10, not only can signal interference from other components or cables inside the printer be avoided, but the high-frequency cable can also be prevented from being interfered with by external electromagnetic waves or noise, thereby ensuring the stability of the high-frequency cable in signal transmission.

[0059] By adopting the above technical solution, since this application displays the real data read back by the pressure sensor 40 on the display screen, the contact pressure between the carbon ribbon and the medium can be precisely and adjustablely controlled, ensuring uniform, flat and stable printing density. It is simple and convenient to use, allowing ordinary users to easily and accurately adjust the pressure and conveniently adapt to different media thicknesses, widths and printing speeds.

[0060] In one optional implementation, after the printer is powered on, the system inside the printer performs a self-test. The reading of pressure sensor 40 returns to zero or displays a very small initial preload value, and the display screen lights up to show the current pressure value. When the operator needs to switch from printing thick labels to printing thin paper labels, they can determine the optimal pressure range required for printing thin materials based on experience and display the current pressure in real time on the screen. This completely eliminates human interference, ensures extremely high consistency and traceability of printing results, greatly reduces debugging time and material waste, and not only facilitates on-site operation but also makes it possible to realize remote monitoring, production data networking, predictive maintenance, and ultimately fully automatic closed-loop pressure control.

[0061] In an alternative implementation, the pressure sensor 40 uses alloy steel or stainless steel as the elastomer material to ensure high strength and long-term stability.

[0062] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. They can refer to a mechanical connection or an electrical connection. They can refer to a direct connection or an indirect connection through an intermediate medium, and they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0063] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0064] The foregoing disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described above. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0065] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with an embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

Claims

1. A printer with ribbon pressure detection function, characterized in that, The printer includes a rubber roller mechanism, an adjustment mechanism, and a frame for fixing the rubber roller mechanism and the adjustment mechanism. A gap is formed between the adjustment mechanism and the rubber roller mechanism for label paper to pass through. The adjustment mechanism is used to adjust the pressure between the print head mounted on the adjustment mechanism and the rubber roller mechanism. The adjustment mechanism includes a fixed bracket, a retainer, a mounting block, a pressure sensor, a printhead, and an adjustment assembly. The printhead and pressure sensor are mounted on the retainer via the mounting block. One end of the retainer is rotatably connected to one side of the fixed bracket. The adjustment assembly is mounted on the other side of the fixed bracket and connected to the other end of the retainer. It is used to adjust the clamping force of the printhead and transmit the clamping force to the pressure sensor, so that the pressure sensor can transmit the clamping force to the printer's display screen for display.

2. The printer according to claim 1, characterized in that, The fixture includes a rotating shaft and a cantilever structure. The cantilever structure includes a cantilever beam and a mounting surface connected to one end of the cantilever beam. The pressure sensor is mounted on the mounting surface via the mounting block. The free end of the cantilever beam is rotatably connected to the fixing bracket via the rotating shaft.

3. The printer according to claim 2, characterized in that, The cantilever beam has a fixed end connected to the mounting surface and a free end away from the mounting surface, with a recess formed between the free end and the fixed end, or the width of the cantilever beam gradually decreases from the free end toward the fixed end.

4. The printer according to claim 3, characterized in that, The ratio of the width of the free end to the width of the fixed end is not less than 1.36; and / or the ratio of the width of the free end to the length of the cantilever beam is not greater than 0.

5.

5. The printer according to claim 2, characterized in that, The adjustment mechanism also includes an elastic element, the two ends of which are connected to the cantilever beam and the fixed bracket respectively, for maintaining an elastic force in the direction of the adjustment assembly to drive the mounting surface facing the adjustment assembly to rotate.

6. The printer according to claim 5, characterized in that, The cantilever beam includes a first cantilever beam and a second cantilever beam. The first cantilever beam has a first gap with the fixed bracket, and the second cantilever beam has a second gap with the fixed bracket. The first gap is larger than the second gap, and at least part of the elastic element is disposed in the first gap.

7. The printer according to claim 2, characterized in that, The mounting surface is provided with a strip-shaped hole, and the mounting block is installed in the strip-shaped hole.

8. The printer according to claim 1, characterized in that, The adjustment assembly includes an adjustment wheel, a deformable element, an adjustment rod, and a fixed block mounted on the fixed bracket. The adjustment wheel is rotatably mounted in the fixed block and protrudes from both sides of the fixed block. The adjustment rod passes through the fixed block and can cooperate with the adjustment wheel to squeeze the deformable element to adjust the clamping force of the print head.

9. The printer according to claim 8, characterized in that, The adjustment assembly includes a pressure shaft, and the fixing block is mounted on the fixing bracket via the pressure shaft.

10. The printer according to claim 1, characterized in that, The printer includes a cable fixing structure and a high-frequency cable. The cable fixing structure includes a shielding layer made of conductive material and a fixing frame. The pressure sensor is connected to the printer's signal processing board through the high-frequency cable. The shielding layer is wrapped around the outside of the high-frequency cable. The fixing frame fixes the shielding layer wrapped around the outside of the high-frequency cable to the fixing device and the fixing bracket. The shielding layer and the fixing bracket are electrically connected.

Images