Printer

Abstract

The printer comprises a host, a cover body and a printing piece, a paper feeding channel is formed in the host, the cover body is rotationally arranged on the host and has a covering state and an unfolding state, a pressing roller is arranged on the cover body, the printing piece comprises a back plate, a panel and an elastic assembly, and a heating printing line is arranged on the side, opposite to the back plate, of the panel. The panel can move relative to the main machine, the elastic assembly is located between the back plate and the panel and connected with the back plate and the panel, when the cover body is in the unfolding state, the side, facing the paper feeding channel, of the panel forms part of the wall face of the paper channel, and when the cover body is switched from the unfolding state to the covering state, the pressing roller abuts against the panel so that the panel can move towards the side where the back plate is located; thus, when the cover body is in a covering state, the panel can enable the heating printing line on the panel to make full contact with the pressing roller under the elastic effect of the elastic assembly, and therefore it is guaranteed that the label paper is evenly stressed during printing, and the printing effect is improved.

Description

Technical Field

[0001] This application relates to the field of printing technology, and more particularly to a printer. Background Technology

[0002] In related technologies, when printing labels, the labels are clamped between the print head and the rubber roller. The rotation of the rubber roller drives the labels out of the paper. However, the clamping force between the rubber roller and the print head may be uneven, resulting in uneven force on the labels and affecting the printing effect. Utility Model Content

[0003] This application provides a printer that can solve the problem that the clamping force between the rubber roller and the print head may be uneven, resulting in uneven force on the label paper and thus affecting the printing effect.

[0004] This application provides a printer, including:

[0005] The host computer has a paper feeding channel for feeding label paper;

[0006] A cover, rotatably mounted on the main unit, has both a closed and an open state; the cover is equipped with a pressure roller; and

[0007] A printed component, comprising a back plate, a front plate, and an elastic component, wherein the back plate and the front plate are both connected to the host computer, and the front plate is movable relative to the host computer. A heated printing line is provided on the side of the front plate facing away from the back plate. The elastic component is located between the back plate and the front plate and is connected to both the back plate and the front plate.

[0008] When the cover is in the unfolded state, the side of the panel facing the paper feeding channel constitutes part of the wall of the paper feeding channel. When the cover switches from the unfolded state to the closed state, the pressure roller presses against the panel to move the panel toward the side where the back plate is located.

[0009] In some embodiments, the host is provided with a pivot, the panel is provided with a first through hole, and the pivot passes through the first through hole to realize the movable connection between the panel and the host. The inner sidewall of the first through hole and the outer sidewall of the pivot are separated by a gap.

[0010] In some embodiments, the first through hole includes a round hole and a waist hole, the rotating shaft passes through the round hole and the waist hole, the length direction of the waist hole is perpendicular to the plane where the heating printing line is located, and the rotating shaft can move along the length direction of the waist hole.

[0011] In some embodiments, the waist hole has two first sidewalls spaced apart along its width direction, and the pivot and the first sidewall have a first gap d1 along the width direction of the waist hole, where d1 satisfies: 0 < d1 ≤ 0.1 mm.

[0012] In some embodiments, the waist hole is located at the end of the circular hole.

[0013] In some embodiments, the first through hole is provided in two sets, and the waist hole is located at the end of the through hole facing the other through hole.

[0014] In some embodiments, the back plate is provided with a second through hole, through which the rotating shaft passes, so that the back plate can rotate relative to the rotating shaft.

[0015] In some embodiments, the back panel has a first protrusion on the side facing the panel, the panel has a second protrusion on the upper surface facing the back panel, one end of the elastic component is mounted on the first protrusion, and the other end of the elastic component is mounted on the second protrusion.

[0016] In some embodiments, one of the back plate and the front panel is provided with a first hook, and the other is provided with a positioning hole. Under the elastic action of the elastic component, the first hook abuts against the wall of the positioning hole.

[0017] One of the back panel and the front panel is provided with a second hook, and the other is provided with a hook position, wherein the second hook engages with the hook position.

[0018] The first hook and the second hook are located at opposite ends of the panel, and the elastic component is located between the first hook and the second hook.

[0019] In some embodiments, the first hook extends into the positioning hole and is movable within the positioning hole along the thickness direction of the panel.

[0020] In some embodiments, the size of the positioning hole along the thickness direction of the panel is d2, where d2 satisfies 2mm≤d2≤6mm.

[0021] In some embodiments, the printer further includes a driver disposed on the host and connected to the back panel to drive the back panel to move relative to the host.

[0022] In some embodiments, the printer further includes a torsion spring, one end of which is connected to the printhead and the other end of which is connected to the host unit. Under the elastic action of the torsion spring, the printhead has a tendency to move away from the pressure roller.

[0023] In some embodiments, one end of the torsion spring is connected to the back plate, and the other end of the torsion spring is connected to the main unit.

[0024] In some embodiments, the elastic component is provided in multiple sets, and the multiple sets of elastic components are arranged at intervals along the length direction of the heated printing line.

[0025] In some embodiments, the panel has a first side and a second side along the length of the heated printing line, and the panel also has a vertical surface located between the first side and the second side, and the vertical surface is also perpendicular to the heated printing line.

[0026] The plurality of elastic components are symmetrically distributed about the vertical plane.

[0027] The printer based on the embodiments of this application includes a main unit, a cover, and a printing component. The main unit has a paper feed channel, the cover has a pressure roller, and the printing component includes a back plate, a front panel, and an elastic component. A heated printing line is provided on the side of the front panel facing away from the back plate, allowing the front panel to move relative to the main unit. The elastic component is located between the back plate and the front panel and connects the back plate and the front panel. When the cover is in the open state, the side of the front panel facing the paper feed channel constitutes part of the wall surface of the paper feed channel. When the cover switches from the open state to the closed state, the pressure roller presses against the front panel, causing the front panel to move towards the side where the back plate is located. Thus, when the cover is in the closed state, the heated printing line on the front panel can fully contact the pressure roller under the elastic action of the elastic component, thereby ensuring that the label paper is evenly stressed during printing and improving the printing effect. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 A schematic diagram of the printer with its cover in an unfolded state, as provided in an embodiment of this application;

[0030] Figure 2 This is a schematic diagram of the internal structure of the printer provided in an embodiment of this application;

[0031] Figure 3 This is a schematic diagram of the structure of the cover provided in an embodiment of this application;

[0032] Figure 4 for Figure 3 Enlarged schematic diagram of the structure at point A;

[0033] Figure 5 A schematic diagram of the structure of the printed part provided in the embodiments of this application;

[0034] Figure 6 A schematic diagram of the panel structure provided in the embodiments of this application;

[0035] Figure 7 A structural schematic diagram of the panel from another perspective provided in the embodiments of this application;

[0036] Figure 8 for Figure 7 A schematic diagram of the cross-section at point AA;

[0037] Figure 9 The structural diagram of the printout and the driver provided in this application embodiment is shown.

[0038] Figure reference numerals:

[0039] 100. Main unit; 100a. Paper feed path;

[0040] 200. Cover body; 201. Pressure roller;

[0041] 300, Printed part; 310, Back plate; 310a, Second through hole; 311, First hook; 312, Second hook; 320, Front panel; 320a, First through hole; 320a1, Round hole; 320a2, Waist hole; 320b, Positioning hole; 320c, Hook position; 330, Elastic component;

[0042] 400. Heated printer line;

[0043] 500, pivot;

[0044] 600. Drive components;

[0045] 700, Torsion spring. Detailed Implementation

[0046] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0047] In the prior art, when printing labels, the labels are clamped between the print head and the rubber roller. The rotation of the rubber roller drives the labels to be output. However, the clamping force between the rubber roller and the print head may be uneven, resulting in uneven force on the labels and affecting the printing effect.

[0048] To resolve the above technical issues, please refer to Figure 1-2 This application proposes a printer, including a host 100, a cover 200, and a printable part 300.

[0049] The main unit 100, as the main structure of the printer, provides stable support for all other components, ensuring the stability and durability of the printer during operation. Furthermore, the main unit 100 is the core component of the entire label printer, responsible for controlling the printing process, processing print data, and providing support and power to other components. The main unit 100 integrates key electronic components such as circuit boards, power management modules, and data processing units. Upon receiving a print command, the print head ejects ink or toner onto the printable surface 300 according to a preset pattern or text information, completing the printing task. The main unit 100 also has a print head for printing. In addition, the main unit 100 has a accommodating cavity for housing printing or driving components. The main unit 100 forms a paper feed path 100a, which is mainly used for feeding label paper during the printing process.

[0050] The cover 200 is rotatably mounted on the host 100 and has a closed state and an open state. When the cover 200 is closed, it can protect the internal components of the printer from dust, dirt and other external factors, making it easy to keep the printer clean and operate normally. When the cover 200 is open, it is convenient for users to change label paper, clean the printer or perform other maintenance work.

[0051] Optionally, the cover 200 integrates an operation interface (such as a display screen, buttons, etc.) to enable users to easily set printing parameters, monitor printing progress, or perform other operations. The cover 200 is equipped with a pressure roller 201, also known as a printing roller, which is used to press the label paper when the cover 200 is in the closed state, thereby improving the printing effect of the label paper.

[0052] Please see Figure 3-4The printable component 300 includes a back plate 310, a front panel 320, and an elastic component 330. Both the back plate 310 and the front panel 320 are connected to the host 100, and the front panel 320 can move relative to the host 100. A heated printing line 400 is provided on the side of the front panel 320 facing away from the back plate 310. The elastic component 330 is located between the back plate 310 and the front panel 320 and is connected to both the back plate 310 and the front panel 320. The heated printing line 400 is used to convert electrical energy into heat energy, and the front panel 320 transfers the heat energy to the ribbon, thereby thermally transferring the toner on the ribbon onto the label paper.

[0053] In the actual printer assembly process, when the pressure roller 201 is installed on the cover 200, there may be some errors. For example, the pressure roller 201 may be installed on the cover 200 at a relatively tilted position. When the pressure roller 201 clamps the label paper with the printing part 300, one end of the roller may be pressed against the heating printing line 400, while the other end may not be pressed against the heating printing line 400. This will cause uneven force on the label paper, making the label paper feed uneven and thus affecting the printing effect.

[0054] Therefore, in this embodiment, when the cover 200 is in the unfolded state, the side of the panel 320 facing the paper feeding channel 100a constitutes part of the wall surface of the paper feeding channel 100a. When the cover 200 switches from the unfolded state to the closed state, the pressure roller 201 presses against the panel 320 to make the panel 320 move towards the side where the back plate 310 is located. During this process, the elastic component 330 is compressed, which will drive the panel 320 to move towards the pressure roller 201, so that the panel 320 is also tilted relative to the host 100. That is, along the width direction of the printer, one end of the panel 320 is high and the other end is low, so that the heated printing line 400 on the panel 320 can fully contact the pressure roller 201. In this way, during printing, both ends of the label paper can be evenly squeezed by the pressure roller 201, thereby fully contacting the heated printing line 400, thus making the label paper feed smoothly and ultimately ensuring the printing effect.

[0055] Please see Figure 5-6 In one embodiment of this application, a pivot 500 is provided on the host 100, and a first through hole 320a is provided on the panel 320. The pivot 500 passes through the first through hole 320a to realize the movable connection between the panel 320 and the host 100. The inner sidewall of the first through hole 320a and the outer sidewall of the pivot 500 have a gap.

[0056] The presence of the gap allows the panel 320 to move smoothly and steadily relative to the host 100 within a certain range, making it difficult for it to jam. Secondly, it also restricts the rotation of the panel 320 around the axis of the pivot 500.

[0057] The panel 320 can move relative to the host 100 within a certain range. Even if the pressure roller 201 is tilted relative to the cover 200, the panel 320 has enough room to move so that the heated printing line 400 can fully contact the pressure roller 201, ensuring that the heated printing line 400 is subjected to uniform force.

[0058] Furthermore, the first through hole 320a includes a round hole 320a1 and a waist hole 320a2. The rotating shaft 500 passes through the round hole 320a1 and the waist hole 320a2. The length direction of the waist hole 320a2 is perpendicular to the plane where the heating printing line 400 is located. The rotating shaft 500 can move along the length direction of the waist hole 320a2.

[0059] The round hole 320a1 and the waist hole 320a2 are connected. The waist hole 320a2 is also called a "waist-shaped hole". Therefore, the design of the waist hole 320a2 allows the panel 320 to move along the length direction of the waist hole 320a2, that is, the panel 320 can move along the thickness direction of the panel 320. In this way, even if the pressure roller 201 is installed at an angle, by moving the panel 320 along the length direction of the waist hole 320a2, the heating printing line 400 on the panel 320 can accurately and fully contact the pressure roller 201, reducing the possibility of the heating printing line 400 deviating from the pressure roller 201.

[0060] Based on the previous embodiment, please refer to Figure 7-8 The waist hole 320a2 has two first sidewalls spaced apart along its width direction. Along the width direction of the waist hole 320a2, the rotating shaft 500 and the first sidewall have a first gap d1, where d1 satisfies: 0 < d1 ≤ 0.1 mm.

[0061] Wherein, d1 can be any two of the ranges of 0.01mm, 0.03mm, 0.05mm, 0.08mm, 0.1mm, or above. By having d1 fall within the above range, it is convenient for the rotating shaft 500 to pass through the waist hole 320a2. At the same time, it can also ensure that the movement of the rotating shaft 500 within the waist hole 320a2 is always along the width direction of the waist hole 320a2, that is, the thickness direction of the panel 320. When the cover 200 is in the closed state, it can ensure that the heating printing line 400 on the panel 320 makes accurate and full contact with the pressure roller 201, reducing the possibility of the heating printing line 400 deviating from the pressure roller 201.

[0062] Optionally, the waist hole 320a2 is located at the end of the round hole 320a1. Since there is sufficient clearance between the rotating shaft 500 and the inner wall of the round hole 320a1, the round hole 320a1 provides a stable and unobstructed channel, so the rotating shaft 500 can easily pass through the round hole 320a1. The wide opening of the waist hole 320a2 at the end provides initial guidance for the insertion of the rotating shaft 500, enabling the rotating shaft 500 to quickly align with the hole opening and reducing the centering accuracy requirement. Secondly, the non-waist hole 320a2 located at the end of the round hole 320a1 allows for slight offset of the rotating shaft 500 during insertion. The shape of the waist hole 320a2 naturally corrects the path, reducing the assembly difficulty.

[0063] In another embodiment of this application, please refer to Figure 5-6 The first through hole 320a is provided in two sets, and the waist hole 320a2 is located at the end of the through hole facing the other through hole.

[0064] The two sets of through holes 320a2 are located at opposite ends, forming a bidirectional guiding structure. Regardless of which side the shaft 500 is inserted from, it can be quickly aligned via the wide opening of the 320a2, reducing the difficulty of centering. Furthermore, the design of the two sets of 320a2 allows for some adjustment space on both sides of the shaft 500. Even if there is a slight deviation between the shaft and the hole, it can be naturally corrected by the wide opening of the 320a2, preventing jamming.

[0065] It is important to understand that the centerlines of the first through holes 320a in the two sets coincide, which reduces the difficulty for the rotating shaft 500 to pass through the two first through holes 320a.

[0066] Please see Figure 5 In one embodiment of this application, a second through hole 310a is provided on the back plate 310, and the rotating shaft 500 passes through the second through hole 310a so that the back plate 310 can rotate relative to the rotating shaft 500.

[0067] The swivel 500 can simultaneously provide mounting positions for both the back panel 310 and the front panel 320, avoiding the need for additional brackets or connectors, thereby saving internal space in the printer and facilitating the overall lightweight and miniaturized design of the printer.

[0068] By connecting the back panel 310 directly to the main unit 100 via the hinge 500, the overall structural layout of the printer is simplified, unnecessary components and connection points are reduced, and the internal structure of the printer is made more concise and clear. This not only improves the reliability and durability of the printer, but also reduces manufacturing costs.

[0069] In one embodiment of this application, a first protrusion is provided on the side of the back plate 310 facing the panel 320, and a second protrusion is provided on the upper surface of the panel 320 facing the back plate 310. One end of the elastic component 330 is installed on the first protrusion, and the other end of the elastic component 330 is installed on the second protrusion.

[0070] The design of the first and second protrusions provides a stable mounting point for the elastic component 330, which reduces the possibility of displacement or loosening of the elastic component 330 during installation, thereby enhancing the stability of the entire structure.

[0071] The elastic component 330 can be a compression spring, a rubber elastomer, or a stainless steel sheet, depending on the specific situation. Considering cost and durability, in one embodiment of this application, the elastic component 330 is exemplarily described as a compression spring.

[0072] The compression spring can be fitted onto the first protrusion and the second protrusion, thereby simplifying the assembly and disassembly process and improving the assembly efficiency of the entire printed part 300. In addition, by placing the compression spring between the back plate 310 and the front panel 320, the space utilization rate can be improved, which facilitates the miniaturization design of the entire printed part 300.

[0073] In some of these embodiments, please refer to Figure 9 One of the back plate 310 and the front panel 320 is provided with a first hook 311, and the other is provided with a positioning hole 320b. Under the elastic action of the elastic component 330, the first hook 311 abuts against the wall of the positioning hole 320b. That is, the first hook 311 can be provided on the back plate 310 and the positioning hole 320b can be provided on the front panel 320, or the positioning hole 320b can be provided on the back plate 310 and the first hook 311 can be provided on the front panel 320.

[0074] Please return and refer to Figure 5 One of the back panel 310 and the front panel 320 is provided with a second hook 312, and the other is provided with a hook position 320c. The second hook 312 and the hook position 320c are engaged with each other. That is, the second hook 312 is provided on the back panel 310 and the hook position 320c is provided on the front panel 320, or the hook position 320c is provided on the back panel 310 and the second hook 312 is provided on the front panel 320.

[0075] This application embodiment does not limit this, and the specific configuration can be set according to the actual situation. Since the first hook 311 and the second hook 312 are located at opposite ends of the panel 320, and under the elastic action of the elastic component 330, the first hook 311 abuts against the wall of the positioning hole 320b, and the second hook 312 engages with the hook position 320c, the user can first assemble the back plate 310, the panel 320 and the elastic component 330 together, and then assemble them onto the printer simultaneously. In this way, the relative position of the panel 320 and the back plate 310 can be accurately guaranteed, thereby ensuring that the heated printing line 400 on the panel 320 can fully contact the pressure roller 201, thus ensuring the printing effect.

[0076] Since the first hook 311 and the second hook 312 are located at opposite ends of the panel 320, and the elastic component 330 is located between the first hook 311 and the second hook 312, that is, under the action of the first hook 311 and the second hook 312, the panel 320 is connected to the back plate 310 on both the side where the first hook 311 is located and the side where the second hook 312 is located. Therefore, when the entire printout 300 is installed on the host 100, the elastic component 330 is unlikely to fall off from the side where the first hook 311 is located or the side where the second hook 312 is located.

[0077] Considering that panel 320 needs to move relative to host 100 so that heated printing line 400 can adapt to adjustment with pressure roller 201, please further refer to... Figure 9 The first hook 311 extends into the positioning hole 320b and can move within the positioning hole 320b along the thickness direction of the panel 320.

[0078] When the cover 200 is in the unfolded state, the first hook 311 abuts against the wall of the positioning hole 320b under the elastic action of the elastic component 330. When the cover 200 switches from the unfolded state to the closed state, the pressure roller 201 will squeeze the panel 320, so that the panel 320 is close to the back plate 310. Therefore, at this time, the first hook 311 disengages from the wall of the positioning hole 320b and moves within the positioning hole 320b. That is, the positioning hole 320b can not only connect the panel 320 and the back plate 310 together, but also provide the first hook 311 with room to move, thereby facilitating the miniaturization design of the entire print 300.

[0079] It should be understood that the first hook 311 can move within the positioning hole 320b along the thickness direction of the panel 320, thus limiting the movement path of the panel 320. This ensures the accuracy of the position of the heated printing line 400 and the pressure roller 201 on the panel 320 when the cover 200 is in the closed state, thereby ensuring smooth paper feeding of the label.

[0080] Furthermore, along the thickness direction of panel 320, the size of positioning hole 320b is d2, which satisfies 2mm≤d2≤6mm. Here, the size of positioning hole 320b can be understood as the distance between two opposite inner sidewalls of positioning hole 320b along the thickness direction of panel 320. d2 can be within any range of 2mm, 3mm, 5mm, 6mm or more. By ensuring that d2 is within the above range, the structure of the entire printout 300 is compact, facilitating the miniaturization design of the entire printer. It also ensures that panel 320 has sufficient room for movement. When pressure roller 201 is installed at an angle, the heated printing line 400 on panel 320 can still be fully attached to pressure roller 201 through the movement of panel 320, thereby ensuring the printing effect of label paper during printing.

[0081] To improve the protection of the heated printing line 400, the entire printing component 300 needs to be retracted when the printer is not printing, which can prevent the user from accidentally touching the panel 320 and the heated printing line 400. Therefore, in one embodiment of this application, the printer also includes a driver 600, which is disposed on the host 100 and connected to the back plate 310 to drive the back plate 310 to move relative to the host 100.

[0082] The drive unit 600 can be electrically driven or manually driven. Furthermore, the drive unit 600 can be a cylinder, a cam, or a crank connecting rod, etc. This application describes the drive unit 600 as a cam. The side of the cam abuts against the back plate 310. The cam is connected to a rotating rod, which is rotatably connected to the main unit 100. The rotating rod can be fixedly connected to a handle. By swinging the handle, the cam is driven to rotate, thereby driving the movement of the back plate 310.

[0083] Further, please refer to Figure 5 The printer also includes a torsion spring 700, one end of which is connected to the printout 300 and the other end of which is connected to the host 100. Under the elastic action of the torsion spring 700, the printout 300 tends to move away from the pressure roller 201.

[0084] Since the torsion spring 700 can make the printed part 300 move away from the pressure roller 201, when the drive part 600 drives the back plate 310 to move, the back plate 310 will be subjected to the elastic force of the torsion spring 700, which can make the back plate 310 move more smoothly, thereby improving the stability of the entire printer.

[0085] Following the above, one end of the torsion spring 700 is connected to the back plate 310, and the other end of the torsion spring 700 is connected to the host 100. That is, the elastic effect of the torsion spring 700 will only act on the back plate 310 and will not cause one side of the panel 320 to tilt. In other words, when the pressure roller 201 is installed in the correct position, the force at the contact point between the panel 320 and the pressure roller 201 is uniform, thereby ensuring the printing quality of the label paper.

[0086] In one embodiment of this application, to improve the uniformity of force distribution on panel 320, please refer to [further details]. Figure 4 Multiple sets of elastic components 330 are provided, and these multiple sets of elastic components 330 are arranged at intervals along the length of the heating printing line 400. The arrangement of multiple sets of elastic components 330 means that the panel 320 will be subjected to uniformly distributed elastic force along the entire length of the heating printing line 400. The uniformly distributed elastic force helps to ensure that the contact pressure between the pressure roller 201 and the panel 320 remains consistent, thereby avoiding over-compression or under-compression in some positions.

[0087] When the contact pressure between the pressure roller 201 and the panel 320 is uniform, the ink on the ribbon can be transferred to the label paper more evenly, thus avoiding problems such as blurry printing, uneven color, or missed printing.

[0088] Furthermore, panel 320 has a first side and a second side along the length of the heated printing line 400, and panel 320 also has a vertical surface located between the first side and the second side, and the vertical surface is also perpendicular to the heated printing line 400, wherein a plurality of elastic components 330 are symmetrically distributed about the vertical surface.

[0089] Since the elastic components 330 are symmetrically distributed about the vertical plane, the force exerted by the elastic components 330 on the panel 320 is balanced on both sides of the vertical plane, ensuring that the panel 320 is subjected to uniform force in the direction of the heating and printing line 400. This avoids problems such as deformation of the panel 320 or inconsistent pressure of the pressure roller 201 caused by uneven force, thereby ensuring the printing effect.

[0090] It is understandable that the number of elastic components 330 is even, that is, two, four, six, etc., so as to allow for the installation of an equal number of elastic components 330 on both sides of the vertical plane.

[0091] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" 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 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, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0092] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A printer, characterized in that, include: The host computer has a paper feeding channel for feeding label paper; A cover, rotatably mounted on the main unit, has both a closed and an open state; the cover is equipped with a pressure roller; and A printed component, comprising a back plate, a front plate, and an elastic component, wherein the back plate and the front plate are both connected to the host computer, and the front plate is movable relative to the host computer. A heated printing line is provided on the side of the front plate facing away from the back plate. The elastic component is located between the back plate and the front plate and is connected to both the back plate and the front plate. When the cover is in the unfolded state, the side of the panel facing the paper feeding channel constitutes part of the wall of the paper feeding channel. When the cover switches from the unfolded state to the closed state, the pressure roller presses against the panel to move the panel toward the side where the back plate is located.

2. The printer according to claim 1, characterized in that, The host is provided with a pivot, and the panel is provided with a first through hole. The pivot passes through the first through hole to realize the movable connection between the panel and the host. The inner sidewall of the first through hole and the outer sidewall of the pivot are separated by a gap.

3. The printer according to claim 2, characterized in that, The first through hole includes a round hole and a waist hole. The rotating shaft passes through the round hole and the waist hole. The length direction of the waist hole is perpendicular to the plane where the heating printing line is located. The rotating shaft can move along the length direction of the waist hole.

4. The printer according to claim 3, characterized in that, The waist hole has two first sidewalls spaced apart along its width direction. Along the width direction of the waist hole, the rotating shaft and the first sidewall have a first gap d1, where d1 satisfies: 0 < d1 ≤ 0.1 mm.

5. The printer according to claim 3, characterized in that, The waist hole is located at the end of the circular hole.

6. The printer according to claim 3, characterized in that, The first through hole is provided in two sets, and the waist hole is located at the end of the through hole facing the other through hole.

7. The printer according to claim 2, characterized in that, The back plate is provided with a second through hole, and the rotating shaft passes through the second through hole so that the back plate can rotate relative to the rotating shaft.

8. The printer according to claim 1, characterized in that, The back panel has a first protrusion on the side facing the front panel, and the front panel has a second protrusion on the upper surface facing the back panel. One end of the elastic component is mounted on the first protrusion, and the other end of the elastic component is mounted on the second protrusion.

9. The printer according to claim 1, characterized in that, One of the back plate and the front plate is provided with a first hook, and the other is provided with a positioning hole. Under the elastic action of the elastic component, the first hook abuts against the wall of the positioning hole. One of the back panel and the front panel is provided with a second hook, and the other is provided with a hook position, wherein the second hook engages with the hook position. The first hook and the second hook are located at opposite ends of the panel, and the elastic component is located between the first hook and the second hook.

10. The printer according to claim 9, characterized in that, The first hook extends into the positioning hole and can move within the positioning hole along the thickness direction of the panel.

11. The printer according to claim 10, characterized in that, Along the thickness direction of the panel, the size of the positioning hole is d2, which satisfies 2mm≤d2≤6mm.

12. The printer according to claim 1, characterized in that, The printer also includes a driver unit, which is located on the host unit and connected to the back panel to drive the back panel to move relative to the host unit.

13. The printer according to claim 12, characterized in that, The printer also includes a torsion spring, one end of which is connected to the printable part and the other end of which is connected to the host unit. Under the elastic action of the torsion spring, the printable part has a tendency to move away from the pressure roller.

14. The printer according to claim 13, characterized in that, One end of the torsion spring is connected to the back plate, and the other end of the torsion spring is connected to the main unit.

15. The printer according to claim 1, characterized in that, The elastic component is provided in multiple sets, and the multiple sets of elastic components are arranged at intervals along the length direction of the heating printing line.

16. The printer according to claim 15, characterized in that, The panel has a first side and a second side along the length of the heating printing line, and the panel also has a vertical surface located between the first side and the second side, and the vertical surface is also perpendicular to the heating printing line. The plurality of elastic components are symmetrically distributed about the vertical plane.

Images