Printer

Abstract

Disclosed in the present application is a printer, comprising a main unit and a cover assembly, wherein the main unit has a supporting portion configured to support an object to be printed; the cover assembly comprises a first movable cover and a second movable cover; the first movable cover is movably connected to the main unit, and is configured to press against the object to be printed; the second movable cover is movably connected to the main unit; and during the process of the second movable cover moving from a closed state to an open state, the second movable cover is linked with the first movable cover, so as to drive the first movable cover to move to the open state. In the printer of the present application, when the second movable cover is opened, the first movable cover can be driven to open, so as to release the pressing against the object to be printed, which simplifies the step for removing the object to be printed and is simple to operate, thereby improving the user experience.

Description

printer

[0001] This application claims priority to Chinese Patent Application No. 2024232651166, entitled "Printer", filed on December 27, 2024, with the State Intellectual Property Office of China; Chinese Patent Application No. 202423264517X, entitled "A Wire Marking Tube Printer"; and Chinese Patent Application No. 2024232646280, entitled "Printer", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of printing equipment technology, and in particular to a printer. Background Technology

[0003] In today's era of rapid technological advancement, printers have become indispensable equipment in many fields. Wire marking printers are one such example. They accurately print identification information for various cables, greatly simplifying the installation, management, maintenance, and troubleshooting processes.

[0004] Printers typically consist of a main unit and a cover. When printing, the item to be printed must first be mounted on the main unit, for example, by threading a wire through it. Then, the item is secured before closing the cover and printing. However, after printing, removing unprinted items is extremely inconvenient. The cover must be opened first, and then the item must be removed from its fixed position. If the item is threaded, it needs to be rotated in the opposite direction; if it's clip-on, the clips need to be pressed or pried open. The disassembly process is complex and cumbersome. Summary of the Invention

[0005] This application provides a printer that simplifies the disassembly process of the item to be printed, making it easy to operate and improving the user experience.

[0006] To achieve the above objectives, this application provides a printer, which includes a main unit and a cover assembly. The main unit has a support portion configured to carry the workpiece to be printed. The cover assembly includes a first movable cover and a second movable cover. The first movable cover is movably connected to the main unit and configured to press against the workpiece to be printed. The second movable cover is movably connected to the main unit, and during the process of the second movable cover moving from a closed state to an open state, the second movable cover is linked with the first movable cover to drive the first movable cover to move to the open state.

[0007] In some embodiments, both the first movable cover and the second movable cover are rotatably connected to the host, and the first movable cover is located between the second movable cover and the host. During the process of the second movable cover rotating from the closed state to the open state, the second movable cover is linked with the first movable cover to drive the first movable cover to rotate to the open state.

[0008] In some embodiments, the cover assembly further includes a transmission component rotatably connected to the host, wherein the first movable cover is linked to the second movable cover via the transmission component, so that opening the second movable cover drives the first movable cover to open.

[0009] In some embodiments, the second movable cover includes a drive arm rotatably connected to the host, the first movable cover includes a linkage arm rotatably connected to the host, one end of the transmission member is configured to abut against the drive arm, and the other end is connected to the linkage arm through a first elastic member;

[0010] The rotation directions of the first movable cover and the second movable cover both include an opening direction and a closing direction, which are opposite to each other. When the second movable cover rotates along the closing direction, the driving arm abuts against the transmission member and drives the transmission member to rotate along the opening direction. When the transmission member rotates along the opening direction, it drives the linkage arm to rotate along the closing direction via the first elastic member, so that the first movable cover closes on the host.

[0011] Furthermore, when the first elastic element is in the closed state, the first elastic element stores elastic potential energy. When the drive arm rotates along the opening direction, the drive arm disengages from the transmission element, and the first elastic element releases its elastic potential energy, thereby driving the linkage arm to rotate along the opening direction so that the first movable cover opens.

[0012] In some embodiments, the transmission element includes:

[0013] The connecting part is connected to the linkage arm; and

[0014] The abutting part is connected at an angle to the connecting part and is configured to abut against the drive arm, and the connection between the abutting part and the connecting part is rotatably connected to the main unit.

[0015] In some embodiments, the drive arm has a first contact surface, and the abutment portion has a second contact surface configured to abut against the first contact surface, wherein the first contact surface is an arcuate surface and the second contact surface is a planar surface.

[0016] In some embodiments, the first elastic element includes one of a tension spring and an elastic rubber element.

[0017] In some embodiments, the cover assembly further includes a second elastic element, one end of which is connected to the first movable cover and the other end of which is connected to the host unit, and the second elastic element stores elastic potential energy when the first movable cover is in the closed state.

[0018] In some embodiments, the first movable cover includes:

[0019] The linkage arm is rotatably connected to the main unit; and

[0020] The limiting part is located on one side of the linkage arm;

[0021] The second elastic member is located between the limiting part and the linkage arm, and one end of the second elastic member abuts against the linkage arm and the other end abuts against the host.

[0022] In some embodiments, the second elastic element includes one of a torsion spring and an elastic rubber element.

[0023] In some embodiments, the first movable cover includes a rotating arm, and the main unit also has a mounting slot configured for the rotating arm to extend into, the rotating arm being rotatably connected to the main unit within the mounting slot.

[0024] In some embodiments, the sidewall of the rotating arm abuts against the inner sidewall of the mounting groove, and one of the sidewall of the rotating arm and the inner sidewall of the mounting groove has a third contact surface, which is an arc-shaped surface.

[0025] In some embodiments, the sidewall of the rotating arm abuts against the inner sidewall of the mounting groove, and the contact area between the sidewall of the rotating arm and the inner sidewall of the mounting groove is not less than 1 mm. 2 and no larger than 4mm 2 .

[0026] In some embodiments, the first movable cover includes a first cover body and a pressing component configured to press against the workpiece to be printed, the pressing component being resiliently connected to the first cover body.

[0027] In some embodiments, the pressing component includes at least one pressing block, and a third elastic element is provided between the pressing block and the first cover. One end of the third elastic element is connected to the pressing block, and the other end is connected to the first cover. The third elastic element stores elastic potential energy when the pressing block presses against the printable part.

[0028] In some embodiments, the second movable cover is rotatably mounted on the main unit and has a closed position and an open position;

[0029] The printer also includes:

[0030] A printing component, installed in the host computer, is configured to print ink onto the surface of the workpiece; and

[0031] A conveying component is located upstream of the printing component in the direction of movement of the workpiece to be printed;

[0032] The conveying assembly includes a conveying roller, a floating roller, and a linkage structure. The conveying roller is rotatably mounted on the host machine, the floating roller is rotatably mounted on the linkage structure, and the linkage structure is mounted on the host machine. The linkage structure is configured to link with the second movable cover as the second movable cover moves from the open position to the closed position, and to drive the floating roller to approach the conveying roller to clamp the workpiece to be printed. The conveying roller and the floating roller rotate towards each other to convey the workpiece to be printed to the printing assembly.

[0033] In some embodiments, the second movable cover is rotatably mounted on the main unit about a direction perpendicular to the axis of the conveying rubber roller; the linkage structure is configured to move in conjunction with the second movable cover and move in the forward direction as the second movable cover moves from the open position to the closed position, so as to drive the floating rubber roller to approach the conveying rubber roller in a direction perpendicular to the axis of the conveying rubber roller.

[0034] In some embodiments, the second movable cover includes a first rotating pressure block; the linkage structure includes a second rotating pressure block and a rubber roller mounting plate connected to the second rotating pressure block, the rubber roller mounting plate being rotatably mounted on the main unit in a direction parallel to the axial direction of the conveying rubber roller, and a floating rubber roller being mounted on the rubber roller mounting plate; wherein, the second rotating pressure block is rotatably mounted on the main unit in a direction perpendicular to the axial direction of the conveying rubber roller, during the process of the second movable cover moving from the open position to the closed position, the first rotating pressure block is configured as the second rotating pressure block and drives the second rotating pressure block to rotate, thereby driving the rubber roller mounting plate to rotate relative to the main unit in a direction parallel to the axial direction of the conveying rubber roller, thereby driving the floating rubber roller to approach the conveying rubber roller.

[0035] In some embodiments, the second rotating pressure block includes a pressing part and a driving part. The pressing part is rotatably mounted on the main unit and includes a first end configured to contact the first rotating pressure block. The driving part is connected to the portion of the pressing part away from the first end and is movably connected to the rubber roller mounting plate.

[0036] In some embodiments, the host includes a fixed column whose axis is parallel to the axis of the conveying roller, and a roller mounting plate is rotatably mounted on the fixed column about the fixed column.

[0037] In some embodiments, the host machine has a first guide portion and the rubber roller mounting plate has a second guide portion. The first guide portion cooperates with the second guide portion to guide the rubber roller mounting plate to rotate about the rotation center of the rubber roller mounting plate. The first guide portion is located in the area between the rotation center of the rubber roller mounting plate and the conveying rubber roller.

[0038] In some embodiments, one of the first guide portion and the second guide portion is a guide post and the other is a guide groove. The guide groove is an arc shape centered on the rotation center of the rubber roller mounting plate. The guide post passes through the guide groove and guides the rubber roller mounting plate to rotate around the rotation center of the rubber roller mounting plate.

[0039] In some embodiments, the linkage structure further includes a linkage elastic element, and the second rotating pressure block is movably connected to the rubber roller mounting plate through the linkage elastic element.

[0040] In some embodiments, the linkage structure is configured to gradually separate from and move in the opposite direction to the second movable cover as the second movable cover moves from the closed position to the open position, thereby driving the floating rubber roller away from the conveying rubber roller in a direction perpendicular to the axial direction of the conveying rubber roller.

[0041] In some embodiments, the linkage structure further includes a reset elastic element, one end of which is connected to the host and the other end of which is connected to the part of the linkage structure where the floating rubber roller is installed.

[0042] In some embodiments, the conveying roller includes a first gear section, and the floating roller includes a second gear section; the wire marking printer also includes a drive assembly, which includes a drive motor and a transmission wheel assembly. The drive motor is connected to the transmission wheel assembly and configured to drive the transmission wheel assembly to rotate, so that the transmission wheel assembly drives the first gear section and the second gear section to rotate synchronously.

[0043] In some embodiments, when the floating rubber roller and the conveying rubber roller are configured to clamp the wire tube, the first gear portion and the second gear portion mesh; the transmission wheel set includes a first gear, which meshes with the first gear portion, or the first gear meshes with the second gear portion, and the drive motor is connected to the first gear.

[0044] In some embodiments, when the floating rubber roller and the conveying rubber roller are configured to clamp the wire tube, the first gear section and the second gear section are spaced apart; the transmission wheel set includes a second gear and a third gear that mesh with each other, the second gear meshes with the first gear section, the third gear meshes with the second gear section, and the drive motor is connected to the second gear.

[0045] In some embodiments, the transmission gear set includes two fourth gears, one of which meshes with a first gear and the other with a second gear; the drive assembly includes two drive motors, each drive motor being connected to one of the fourth gears, and the two drive motors driving the two fourth gears to rotate synchronously.

[0046] In some embodiments, the host includes a base having a conveying space and a tube placement groove and a positioning groove communicating with the conveying space. The tube placement groove and the positioning groove are connected, and the floating rubber roller moves within the positioning groove to approach or move away from the conveying rubber roller. Both the conveying rubber roller and the floating rubber roller are located in the conveying space.

[0047] In some embodiments, the tube-laying groove has a tube-laying support surface. In the axial direction of the conveying rubber roller, both the first gear portion and the second gear portion are located below the tube-laying support surface, and the distance between them is M, where 0.5mm≤M≤20mm.

[0048] In some embodiments, the floating rubber roller has a first limit position and a second limit position. In the first limit position, the distance between the floating rubber roller and the conveying rubber roller is the largest, and in the second limit position, the distance between the floating rubber roller and the conveying rubber roller is the smallest. The reciprocating stroke of the floating rubber roller in the first limit position and the second limit position is X1, 10mm≤X1≤12mm; and / or, in the second limit position, the radial distance between the floating rubber roller and the conveying rubber roller is X2, 0.1mm≤X2≤0.5mm.

[0049] In the printer provided in this application embodiment, the cover assembly includes a first movable cover and a second movable cover. The first movable cover is configured to press the workpiece to be printed against the support portion. The second movable cover is linked with the first movable cover. When the second movable cover opens, it drives the first movable cover to open, thereby releasing the pressure on the workpiece to be printed. This simplifies the disassembly steps of the workpiece to be printed, makes the operation simple, and improves the user experience. Attached Figure Description

[0050] 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 the structures shown in these drawings without creative effort.

[0051] Figure 1 is a schematic diagram of the structure of a printer carrying a work to be printed in one embodiment of this application;

[0052] Figure 2 is a schematic diagram of the printer structure in one embodiment of this application;

[0053] Figure 3 is a schematic diagram of the printer structure after hiding the host portion structure in one embodiment of this application;

[0054] Figure 4 is a schematic diagram of the structure of the drive arm, transmission component, first elastic component and linkage arm in one embodiment of this application.

[0055] Figure 5 is another structural schematic diagram of the drive arm, transmission component, first elastic component and linkage arm in one embodiment of this application;

[0056] Figure 6 is a schematic diagram of another structure of a printer carrying a work to be printed in one embodiment of this application;

[0057] Figure 7 is an enlarged view of point A in Figure 6;

[0058] Figure 8 is a partial structural schematic diagram of the rotating arm and the host in one embodiment of this application;

[0059] Figure 9 is a structural schematic diagram of the first movable cover and the third elastic member in one embodiment of this application;

[0060] Figure 10 is a three-dimensional structural diagram of the printer in the open position according to an embodiment of this application;

[0061] Figure 11 is a three-dimensional structural diagram of part of the printer in Figure 10;

[0062] Figure 12 is an enlarged view of point B in Figure 11;

[0063] Figure 13 is a top view of a portion of the printer's structure in the open position according to an embodiment of this application;

[0064] Figure 14 is a top view of a portion of the printer's structure in the closed position according to an embodiment of this application;

[0065] Figure 15 is a cross-sectional view of section AA in Figure 10;

[0066] Figure 16 is an enlarged schematic diagram of point E in Figure 15;

[0067] Figure 17 is an enlarged view of point C in Figure 13;

[0068] Figure 18 is an enlarged schematic diagram of point D in Figure 14;

[0069] Figure 19 is a schematic diagram of a printer carrying a work to be printed according to another embodiment of this application;

[0070] Figure 20 is a partial structural schematic diagram of the first movable cover in one embodiment of this application.

[0071] Reference numerals in the attached figures: 1. Main unit; 11. Fixing column; 12. First guide part; 121. Guide column; 13. Base; 130. Bearing part; 131. Tube placement groove; 131A. Tube placement support surface; 132. Movement groove; 14. Carbon ribbon box; 2. Cover assembly; 21. First movable cover; 211. First cover body; 212. Linkage arm; 213. Limiting part; 214. Rotating arm; 215. Pressing assembly; 2141. Third contact surface; 2151. Pressing block; 216. Locking structure; 2161. Lock; 2162. Lock groove; 22. Second movable cover; 221. Second cover body; 222. Drive arm; 2221. First contact surface; 223. First rotating pressing block; 224. Cover assembly; 23 1. Transmission component; 231. Connecting part; 232. Abutting part; 2321. Second contact surface; 24. First elastic element; 25. Second elastic element; 26. Third elastic element; 3. Printing assembly; 4. Conveying assembly; 41. Conveying roller; 411. First gear part; 42. Floating roller; 421. Second gear part; 43. Linkage structure; 431. Second rotating pressure block; 431A. Pressing part; 431b. Driving part; 432. Roller mounting plate; 4321. Second guide part; 4321A. Guide groove; 433. Linkage elastic element; 434. Reset elastic element; 5. Driving assembly; 51. Transmission wheel set; 100. Workpiece to be printed; 200. Mounting groove; 300. Mounting cavity.

[0072] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0073] 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.

[0074] This application provides a printer that simplifies the disassembly process of the item to be printed, making it easy to operate and improving the user experience.

[0075] Specifically, please refer to Figures 1 and 2. Figure 1 is a schematic diagram of the structure of a printer carrying a workpiece to be printed provided in an embodiment of this application; Figure 2 is a schematic diagram of the structure of a printer provided in an embodiment of this application.

[0076] The printer in this embodiment can be configured as various types, such as a wire marking tube printer, a label printer, a barcode printer, etc. Correspondingly, the part to be printed 100 can be in various forms, such as wire marking tubes, various labels, barcode paper, etc. Among them, a wire marking tube printer is a printer configured to print markings, such as numbers, letters, symbols, etc., on wire marking tubes to mark cables. The following description will use a wire marking tube printer as the printer in this embodiment and a wire marking tube as the part to be printed 100.

[0077] The printer in this embodiment consists of a main unit 1 and a cover assembly 2. The main unit 1, as the core supporting part of the entire printer, may include a base 13 and a printing assembly and a conveying assembly mounted on the base 13. The print head in the printing assembly is the component that prints the marking information of the wire tubes, and can accurately print characters, numbers, or symbols on the surface of the wire tubes according to preset instructions. The conveying roller of the conveying assembly is configured to convey the wire tubes. The base 13 has a supporting part 130 configured to support the workpiece 100 (wire tube) to be printed. For example, in this embodiment, the supporting part 130 is a tube placement groove formed on the base 13. The wire tubes pass through the tube placement groove on the base 13 and pass through the conveying roller. The conveying roller gradually conveys the wire tubes to the corresponding position of the print head through rotational movement to ensure the smooth operation of the printing operation.

[0078] The cover assembly 2 in this embodiment includes a first movable cover 21 and a second movable cover 22. Both the first movable cover 21 and the second movable cover 22 are movably connected to the base 13. The movable connection can be achieved using a hinge, slide rail, or other structure, ensuring that the first movable cover 21 and the second movable cover 22 can open and close flexibly, facilitating the installation and removal of the wire marking tube. Exemplarily, both the first movable cover 21 and the second movable cover 22 are rotatably connected to the base 13, and this rotatable connection can be achieved using a hinge structure. The first movable cover 21 is configured to press against the wire marking tube, and can press against the wire marking tube when closed. Exemplarily, the first movable cover 21 includes a first and second movable cover 2211 and a pressing component 215. The pressing component 215 is connected to the side of the first and second movable cover 2211 facing the base 13, so as to press against the wire marking tube when the first movable cover 21 is closed on the base 13.

[0079] In this embodiment, the first movable cover 21 can be located between the second movable cover 22 and the base 13. When the cover assembly 2 is closed, the first movable cover 21 directly contacts and presses against the wire tube, making the pressing relationship between the first movable cover 21 and the wire tube more direct and able to fix the wire tube more stably. In addition, the first movable cover 21 can also be embedded in the second movable cover 22. For example, the second movable cover 22 has a mounting cavity, and the first movable cover 21 can be installed in the mounting cavity to achieve embedding in the second movable cover 22. When the first movable cover 21 is embedded in the second movable cover 22, the first movable cover 21 is initially hidden inside the second movable cover 22. From the appearance, the entire cover assembly 2 presents a relatively simple overall structure.

[0080] In this embodiment, during the process of the second movable cover 22 rotating from the closed state to the open state, the second movable cover 22 is linked with the first movable cover 21 to drive the first movable cover 21 to rotate to the open state. Exemplarily, the second movable cover 22 and the first movable cover 21 are connected by a transmission mechanism, so that when the second movable cover 22 opens, it drives the first movable cover 21 to open. In one embodiment, the second movable cover 22 and the first movable cover 21 are driven by a gear set, with meshing gears respectively provided at specific positions on the second movable cover 22 and the first movable cover 21. When the second movable cover 22 rotates to open, the gear set drives the first movable cover 21 to open. This transmission method utilizes the mechanical characteristics of gear transmission to stably achieve the linkage between the second movable cover 22 and the first movable cover 21. In another embodiment, the second movable cover 22 and the first movable cover 21 are driven by a chain, with cooperating chains and sprockets respectively provided at specific positions on the second movable cover 22 and the first movable cover 21. The chain wraps around the two sprockets to form a closed transmission chain. When the second movable cover 22 rotates to open, the sprocket at the second movable cover 22 drives the chain to move, and the chain in turn drives the sprocket at the first movable cover 21 to rotate, thereby enabling the first movable cover 21 to open.

[0081] When using the printer of this embodiment, the operator first inserts the wire gauge tube into the tube placement slot of the base 13 of the main unit 1, and then passes it through the conveying roller of the conveying assembly. Next, the first movable cover 21 and the second movable cover 22 are closed on the base 13. At this time, under the cooperative action of the second movable cover 22 and the first movable cover 21, the wire gauge tube is firmly pressed against the printing position. When it is necessary to remove the wire gauge tube, simply open the second movable cover 22. Since the second movable cover 22 is linked to the first movable cover 21, opening the second movable cover 22 will cause the first movable cover 21 to open, thereby automatically releasing the pressure on the wire gauge tube. The operator can easily remove the wire gauge tube from the tube placement slot without performing additional complex operations to separately release the pressure of the first movable cover 21 on the wire gauge tube. This simplifies the wire gauge tube removal steps, reduces the operator's operating time and labor intensity, and greatly improves work efficiency and user experience.

[0082] Please refer to Figures 3 to 5. Figure 3 is a schematic diagram of the printer structure after hiding part of the host 1 structure provided in the embodiment of this application; Figure 4 is a schematic diagram of the structure of the drive arm 222, transmission component 23, first elastic component 24 and linkage arm 212 provided in the embodiment of this application; Figure 5 is another schematic diagram of the structure of the drive arm 222, transmission component 23, first elastic component 24 and linkage arm 212 provided in the embodiment of this application.

[0083] In some embodiments, the cover assembly 2 further includes a transmission member 23, which is a key component that links the second movable cover 22 with the first movable cover 21.

[0084] Specifically, the first movable cover 21 also includes a linkage arm 212, which is connected to the first and second movable covers 2211, and can be integrally formed with the first and second movable covers 2211. The linkage arm 212 is rotatably connected to the base 13, and the rotatable connection can be achieved by a pivot passing through both the linkage arm 212 and the base 13, or by a hinge structure connecting it to the base 13.

[0085] The second movable cover 22 includes a second cover body 221 and a drive arm 222 connected together. When the cover is closed, the second cover body 221 covers the support part 130 of the host 1, providing a relatively closed and stable environment for printing operations and reducing interference from external factors such as dust and airflow. The drive arm 222 is rotatably connected to the base 13. The rotatable connection can be achieved by passing through both the linkage arm 212 and the base 13 via a pivot, or by connecting the linkage arm 212 to the base 13 via a hinge structure.

[0086] The transmission component 23 is rotatably connected to the base 13. One end of the transmission component 23 is configured to abut against the drive arm 222, and the other end is connected to the linkage arm 212 via the first elastic element 24, so that the second movable cover 22 is linked with the first movable cover 21. Specifically, as shown in FIG4, the transmission component 23 includes a connecting portion 231 and an abutting portion 232. The connecting portion 231 is connected to the linkage arm 212 via the first elastic element 24, and the abutting portion 232 is connected to the connecting portion 231 at an angle and configured to abut against the drive arm 222. The connection between the abutting portion 232 and the connecting portion 231 is rotatably connected to the base 13. In this way, the transmission component 23 can transmit power during the linkage of the first movable cover 21 and the second movable cover 22.

[0087] As shown in Figure 4, when the second movable cover 22 rotates in the closing direction (counterclockwise in the figure), the drive arm 222 abuts against the abutting part 232 of the transmission member 23, causing the transmission member 23 to rotate in the opening direction (clockwise in the figure). The connecting part 231 of the transmission member 23 is connected to the linkage arm 212 of the first movable cover 21 through the first elastic member 23. Therefore, when the transmission member 23 rotates in the opening direction, it will drive the linkage arm 212 to rotate in the closing direction, so that the first movable cover 21 closes on the base 13. At this time, the first elastic member 24 stores elastic potential energy. The first elastic member 24 includes one of a tension spring and an elastic rubber member. In this embodiment, the first elastic member 24 is a tension spring. When the first movable cover 21 is in the closed state, the tension spring is in the stretched state.

[0088] As shown in Figure 5, when the second movable cover 22 is opened, the drive arm 222 rotates in the opening direction (clockwise in the figure). At this time, the drive arm 222 disengages from the ground contact 232 of the transmission component 23. Since the drive arm 222 no longer applies driving force to the transmission component 23, the elastic potential energy stored in the first elastic element 24 is released. The released elastic potential energy will drive the linkage arm 212 to rotate in the opening direction (clockwise in the figure), thereby realizing the opening action of the first movable cover 21.

[0089] The linkage structure between the second movable cover 22 and the first movable cover 21 in this embodiment greatly simplifies the disassembly steps of the wire gauge tube. Simply open the second movable cover 22 and the first movable cover 21 will automatically open. Operators can directly remove or replace the wire gauge tube, reducing operational steps and improving work efficiency.

[0090] In some embodiments, the drive arm 222 of this embodiment has a first contact surface 2221, which is an arc-shaped surface, and the abutment portion 232 has a second contact surface 2321 configured to abut against the first contact surface 2221, which is a plane. When the drive arm 222 rotates along the closing direction (counterclockwise), the arc-shaped first contact surface 2221 gradually approaches and contacts the second contact surface 2321 of the transmission member 23 and presses against the transmission member 23, thereby driving the transmission member 23 to rotate along the opening direction (clockwise), so that the second movable cover 22 drives the first movable cover 21 to close.

[0091] When the first movable cover 21 needs to be opened, the drive arm 222 rotates in the opening direction (clockwise). Due to the special geometric relationship between the first contact surface 2221 (arc-shaped surface) and the second contact surface 2321 (plane), the arc-shaped surface of the drive arm 222 gradually separates from the plane during rotation. At this time, the transmission component 23 is no longer subjected to the pressure force of the drive arm 222. As the drive arm 222 continues to rotate, the elastic potential energy stored in the tension spring begins to be released. The released elastic potential energy is converted into kinetic energy, driving the linkage arm 212 to rotate in the opening direction (clockwise), thereby realizing the automatic opening action of the first movable cover 21.

[0092] Please refer to Figures 6 and 7. Figure 6 is another structural schematic diagram of a printer with wire marking tubes installed according to an embodiment of this application; Figure 7 is an enlarged view of point A in Figure 6.

[0093] The cover assembly 2 in this embodiment also includes a second elastic element 25, which plays a key auxiliary role in the automatic opening of the first movable cover 21. The second elastic element 25 includes one of a torsion spring and an elastic rubber element.

[0094] Specifically, the second elastic element 25 is a torsion spring, which can store and release elastic potential energy during torsional deformation. One end of the second elastic element 25 is connected to the first movable cover 21, specifically to the linkage arm 212 of the first movable cover 21. The other end of the second elastic element 25 is connected to the base 13, which has a corresponding groove or protrusion structure, allowing the end of the second elastic element 25 to stably abut against it. When the first movable cover 21 is closed, due to the closing action of the second movable cover 22 and the action of the transmission component 23 on the linkage arm 212, the second elastic element 25 will be twisted at a certain angle and store elastic potential energy.

[0095] The first movable cover 21 in this embodiment also includes a limiting part 213 located on one side of the linkage arm 212. The limiting part 213 plays multiple roles in the structure of the first movable cover 21. On the one hand, the limiting part 213 uses its positional relationship with the linkage arm 212 to limit the second elastic member 25 (torsion spring). A specific space is formed between the limiting part 213 and the linkage arm 212, and the second elastic member 25 is placed in this space. The limiting part 213 can prevent the second elastic member 25 from lateral displacement or leaving its normal working position during operation. For example, the linkage arm 212 is connected to the base 13 via a pivot. Along the axial direction of the pivot, a limiting part 213 is spaced apart from the linkage arm 212. A second elastic element 25 passes through the pivot between the limiting part 213 and the linkage arm 212. The pivot restricts the radial movement of the second elastic element 25, while the distance between the limiting part 213 and the linkage arm 212 controls the axial position of the second elastic element 25, ensuring that the second elastic element 25 maintains its normal working position during torsion. Furthermore, the aforementioned limiting structure simplifies the overall structural design of the first movable cover 21. This embodiment does not require an additional complex elastic element fixing device, reducing the number of parts and assembly difficulty of the first movable cover 21.

[0096] When the first movable cover 21 needs to be opened, the drive arm 222 rotates in the opening direction (clockwise). The drive arm 222 disengages from the transmission component 23, and the first elastic element 24 (such as a tension spring) releases its elastic potential energy, driving the linkage arm 212 to rotate in the opening direction (clockwise). Simultaneously, with the assistance of the second elastic element 25 (torsion spring), the opening action of the first movable cover 21 is smoother. Since the second elastic element 25 stored elastic potential energy when the first movable cover 21 was closed, it releases this energy, generating an auxiliary torque. This torque works in conjunction with the tension of the first elastic element 24 to accelerate the rotation of the linkage arm 212, thereby enabling the first movable cover 21 to open quickly and smoothly.

[0097] Please refer to Figure 8, which is a partial structural schematic diagram of the rotating arm 214 and the host 1 provided in the embodiment of this application.

[0098] The first movable cover 21 in this embodiment also includes a rotating arm 214. The rotating arm 214 serves as a rotating connection component between the first movable cover 21 and the main unit 1, and its structure balances strength and flexibility. For example, the rotating arm 214 can be made of high-strength engineering plastics or lightweight alloy materials, possessing a certain rigidity to ensure that it will not deform excessively when subjected to various forces during the rotation of the first movable cover 21. Its length can be determined according to the size of the first movable cover 21 and the required rotation radius, and its cross-sectional shape can be circular, rectangular, or irregular, etc.

[0099] A mounting groove 200 is formed on the base 13 of the main unit 1, and the mounting groove 200 has multiple functions. On the one hand, the mounting groove 200 is configured to mount the rotating arm 214 and also serves to avoid interference or collision between the rotating arm 214 and other parts of the base 13. For example, the shape and size of the mounting groove 200 are designed according to the outer contour and rotation trajectory of the rotating arm 214, ensuring that the rotating arm 214 can rotate freely within the mounting groove 200 without being collided or obstructed due to insufficient space, thereby facilitating the opening of the first movable cover 21. On the other hand, the inner sidewall of the mounting groove 200 abuts against the sidewall of the rotating arm 214, which can limit the position of the rotating arm 214 and ensure the stability of the rotation of the first movable cover 21. A third contact surface 2141 is provided on one of the inner sidewall of the mounting groove 200 and the sidewall of the rotating arm 214, and the third contact surface 2141 is an arc-shaped surface. The arc-shaped third contact surface 2141 effectively reduces the contact area between the rotating arm 214 and the inner wall of the mounting groove 200, thereby reducing the frictional force experienced by the first movable cover 21 during rotation, which facilitates the opening of the first movable cover 21. At the same time, the inner walls on both sides of the mounting groove 200 can also confine the rotating arm 214 within the mounting groove 200, thereby ensuring sufficient contact stability and preventing the rotating arm 214 from shaking or shifting.

[0100] In some embodiments, the contact area between the side wall of the rotating arm 214 and the inner side wall of the mounting groove 200 is controlled to be not less than 1 mm. 2 and no larger than 4mm 2 Within the range. When the contact area is less than 1mm. 2 At this time, the contact relationship between the rotating arm 214 and the mounting groove 200 may be unstable, easily resulting in gaps, thus failing to effectively limit the position of the rotating arm 214 and causing it to deviate excessively during rotation. Furthermore, when the contact area is greater than 4mm... 2 When this happens, it will increase the friction between the rotating arm 214 and the inner wall of the mounting groove 200, which is not conducive to the smooth opening of the first movable cover 21.

[0101] Please refer to Figure 9, which is a structural schematic diagram of the first movable cover 21 and the third elastic member 26 provided in the embodiment of this application.

[0102] In this embodiment, the pressure-blocking component 215 is elastically connected to the first and second movable covers 2211. It is not only configured as a pressure-blocking tube, but also plays an auxiliary role in the automatic opening process of the first movable cover 21.

[0103] Specifically, the pressing assembly 215 includes at least one pressing block 2151. The pressing block 2151 is a component that directly contacts and fixes the wire tube. Its material has a certain degree of hardness and wear resistance, such as being made of hard rubber or engineering plastic. The pressing block 2151 is cylindrical in shape, such as a pressure roller.

[0104] A third elastic element 26 is provided between the pressure block 2151 and the first and second movable covers 2211. The third elastic element 26 can be a compression spring or a torsion spring. Taking a compression spring as an example, one end of the compression spring is connected to the pressure block 2151, and a connecting post or groove is provided on the pressure block 2151, where the end of the compression spring can be sleeved or snapped. The other end of the compression spring is connected to the first and second movable covers 2211, and a mounting seat is provided at a corresponding position on the first and second movable covers 2211, where the compression spring can be installed. When the pressure block 2151 presses against the wire tube, the compression spring is compressed and stores elastic potential energy due to the closing action of the first movable cover 21 and the reaction force of the wire tube. For example, in the normal working state of the printer, the first movable cover 21 is closed, and the pressure block 2151 moves downward under the action of the first and second movable covers 2211. The compression spring is gradually compressed, and the stored elastic potential energy increases with the increase of the compression. At this time, the wire tube is firmly fixed between the base 13 and the pressure block 2151, ensuring the accuracy and stability of the printing process.

[0105] When the first movable cover 21 needs to be opened, the third elastic element 26 (such as a compression spring), which was originally in a compressed state and stored elastic potential energy, begins to release its elastic potential energy. The spring force pushes the first movable cover 21 upward, thereby improving the smoothness of opening the first movable cover 21. When two or more pressure blocks 2151 are provided, for example, two pressure blocks 2151 are provided at intervals, and each pressure block 2151 is connected to an independent third elastic element 26, the two third elastic elements 26 will release their elastic force simultaneously. The resultant force of the two elastic forces will act more evenly on the first movable cover 21, making the first movable cover 21 open more smoothly, thereby improving the opening speed and smoothness of the first movable cover 21.

[0106] In the exemplary technology of the wire marking tube printer, the wire marking tube is mainly fed by the rotation of the printing roller. Since the friction between the printing roller and the wire marking tube is limited, and slippage may occur after a long time or when encountering great resistance, the tube cannot be fed accurately. This not only affects the consistency of the printing position, but may also damage the printed pattern and cause the printed information to accumulate.

[0107] Please refer to Figures 10 to 12. In order to solve the above-mentioned technical problems, in some embodiments, the printer includes a host 1, a second movable cover 22, a printing component 3, and a transport component 4.

[0108] Specifically, the second movable cover 22 is rotatably mounted on the host 1 and has a closed position and an open position. The printing component 3 is mounted on the host 1 and configured to print ink on the surface of the workpiece 100 to be printed. The conveying component 4 is located upstream of the printing component 3 in the direction of movement of the workpiece 100 to be printed. The conveying component 4 includes a conveying roller 41, a floating roller 42 and a linkage structure 43. The conveying roller 41 is rotatably mounted on the host 1, the floating roller 42 is rotatably mounted on the linkage structure 43, and the linkage structure 43 is mounted on the host 1. The linkage structure 43 is configured to link with the second movable cover 22 as the second movable cover 22 moves from the open position to the closed position, and drive the floating roller 42 to approach the conveying roller 41 to clamp the workpiece 100 to be printed. The conveying roller 41 and the floating roller 42 rotate towards each other to convey the workpiece 100 to the printing component 3.

[0109] In this application, when the second movable cover 22 is in the closed position, the floating rubber roller 42 of the conveying assembly 4 and the conveying rubber roller 41 can jointly clamp the workpiece 100 to be printed, so as to ensure that the floating rubber roller 42 and the conveying rubber roller 41 provide a certain pressure to the workpiece 100. When the floating rubber roller 42 and the conveying rubber roller 41 rotate in opposite directions, they can provide friction in the corresponding direction to drive the workpiece 100 to be printed, so that the workpiece 100 has a certain initial velocity, thereby reducing the tube feeding pressure of the printing assembly 3 and facilitating smooth tube feeding. The printing assembly 3 can print evenly at the corresponding position of the workpiece 100, achieving excellent printing effect. At the same time, the linkage structure 43 can link the movement of the second movable cover 22 and the floating rubber roller 42. When the second movable cover 22 moves from the open position to the closed position, it can link the movement of the floating rubber roller 42, simplifying the manual operation steps of the printer and improving the working efficiency of the printer.

[0110] In practical applications, the host unit 1 provides the mounting base for the various components of the printer. In addition to providing the relevant structure for the installation of other components, the host unit 1 also integrates the corresponding electrical control system to ensure that the printer can operate normally.

[0111] Correspondingly, the second movable cover 22 has a closed position that covers and cooperates with the host 1. When in the closed position, the second movable cover 22 can cover the workpiece 100 to be printed and other internal components, effectively preventing external interference and ensuring the normal operation of the printer. The second movable cover 22 also has an open position that is set at an angle to the host 1. The second movable cover 22 can rotate relative to the host 1 to switch between the two positions. When the second movable cover 22 is in the closed position, the distance between the conveying roller 41 and the floating roller 42 of the conveying assembly 4 is the smallest. When the second movable cover 22 is in the open position, the distance between the conveying roller 41 and the floating roller 42 is the largest, thereby realizing the clamping and releasing of the workpiece 100 to be printed.

[0112] In this embodiment, the conveying component 4 is located upstream of the printing component 3 in the direction of movement of the printable part 100. It is understood that during the printing process, the printable part 100 is divided into a printing end and an unprinted end, with the conveying component 4 located on the unprinted side. In some embodiments, the rotational speed of the conveying component 4 is slightly greater than that of the printing component 3, thereby further ensuring smooth tube feeding by the conveying component 4. The conveying component 4 is configured to provide a certain initial velocity to the printable part 100 and ensure that the printable part 100 can move smoothly to the printing component 3. This configuration ensures that the printed printable part 100 can be conveyed out of the host 1 without being stretched, preventing damage to the printed part and resulting in better printing quality.

[0113] In addition, the linkage structure 43 can drive the floating rubber roller 42 to move when the second movable cover 22 moves. This process does not require manual adjustment of the operation of the floating rubber roller 42 and the conveying rubber roller 41, which simplifies the operation and improves the automation level of the printer.

[0114] Referring to Figures 11 and 12, the second movable cover 22 is rotatably mounted on the main unit 1 in a direction perpendicular to the axis of the conveyor roller 41. The linkage structure 43 is configured to move in tandem with the second movable cover 22 and move forward during the movement of the second movable cover 22 from the open position to the closed position, thereby driving the floating roller 42 to approach the conveyor roller 41 in a direction perpendicular to the axis of the conveyor roller 41. It can be understood that the linkage structure 43 can move synchronously with the second movable cover 22 and move forward. This forward movement means that at least a portion of the linkage structure 43 can move along the closing direction of the second movable cover 22. This configuration ensures that the floating roller 42 can quickly respond to the action of the second movable cover 22. The linkage effect achieved through the mechanical connection improves the consistency of each linkage process and reduces instability caused by the electronic linkage method, thus enhancing the reliability of the printer.

[0115] In some embodiments, referring to Figures 13 and 14, the axial direction of the conveying roller 41 is vertical, the rotation direction of the second movable cover 22 is about the horizontal direction, and the linkage structure 43 is driven by the second movable cover 22. Therefore, at least a part of the linkage structure 43 also rotates about the horizontal direction, while the floating roller 42 moves closer to the conveying roller 41 in the horizontal direction. It can be understood that part of the linkage structure 43 in this application has a stroke that moves about the horizontal direction, and another part has a stroke that moves along the horizontal direction. The linkage structure 43 can realize the direction change during the driving process, and play a driving effect on the floating structure.

[0116] Referring to Figure 12, the second movable cover 22 includes a first rotating pressure block 223; the linkage structure 43 includes a second rotating pressure block 431 and a rubber roller mounting plate 432 connected to the second rotating pressure block 431. The rubber roller mounting plate 432 is rotatably mounted on the host machine 1 in a direction parallel to the axial direction of the conveying rubber roller 41, and the floating rubber roller 42 is mounted on the rubber roller mounting plate 432. The second rotating pressure block 431 is rotatably mounted on the host machine 1 in a direction perpendicular to the axial direction of the conveying rubber roller 41. During the process of the second movable cover 22 moving from the open position to the closed position, the first rotating pressure block 223 is configured as the second rotating pressure block 431 and drives the second rotating pressure block 431 to rotate, thereby driving the rubber roller mounting plate 432 to rotate relative to the host machine 1 in a direction parallel to the axial direction of the conveying rubber roller 41, and thus driving the floating rubber roller 42 to approach the conveying rubber roller 41.

[0117] Specifically, the first rotating pressure block 223 can rotate together with the second movable cover 22 in a direction perpendicular to the axial direction of the conveying rubber roller 41. The second rotating pressure block 431 is also mounted on the host machine 1 in a direction perpendicular to the axial direction of the conveying rubber roller 41. In this embodiment, the first rotating pressure block 223 has a travel distance close to the second rotating pressure block 431. As the second movable cover 22 moves from the open position to the closed position, the first rotating pressure block 223 gradually approaches the second rotating pressure block 431 and abuts against it. After the two abut against each other, the first rotating pressure block 223 continues to rotate and drives the second rotating pressure block 431 to rotate until the second movable cover 22 closes to the host machine 1. During this process, since the second rotating pressure block 431 is connected to the rubber roller mounting plate 432, the movement of the second rotating pressure block 431 can pull the movement of the rubber roller mounting plate 432. The rubber roller mounting plate 432 further drives the floating rubber roller 42 closer to the conveying rubber roller 41.

[0118] Understandably, the roller mounting plate 432 provides stable support for the installation of the floating roller 42. The roller mounting plate 432 is rotatably mounted on the host 1, which facilitates the stable transmission of the floating roller 42 to a position close to the conveyor roller 41. With this setting, the various components cooperate efficiently, which facilitates a more precise mechanical linkage mechanism for the printer, simplifies user operation, and improves the reliability and print quality of the printer.

[0119] In some embodiments, the second movable cover 22 includes a cover plate, a shaft, and a first rotating pressure block 223. The first rotating pressure block 223 is connected to the shaft and protrudes radially from the shaft to facilitate contact with the second rotating pressure block 431. The axial direction of rotation of the first rotating pressure block 223 is parallel to the axial direction of rotation of the second rotating pressure block 431 to facilitate the first rotating pressure block 223 driving the second rotating pressure block 431.

[0120] It is understood that, in order to achieve different movement paths between the second rotating pressure block 431 and the rubber roller mounting plate 432, the linkage structure 43 also includes a reversing linkage component. The reversing linkage component is configured to convert the movement stroke of the second rotating pressure block 431 rotating in the horizontal direction into the movement stroke of the rubber roller mounting plate 432 rotating in the vertical direction. The reversing linkage component can be any of the following components: linkage assembly, gear assembly, sprocket assembly, etc., as long as it can achieve the reversing effect. This application does not impose any restrictions on it.

[0121] Referring to Figure 12, the second rotating pressure block 431 includes a pressing part 431A and a driving part 431b. The pressing part 431A is rotatably mounted on the host 1 and includes a first end configured to contact the first rotating pressure block 223. The driving part 431b is connected to the portion of the pressing part 431A away from the first end and is movably connected to the rubber roller mounting plate 432. Specifically, the pressing part 431A is fixed to the host 1 by a rotating shaft or similar structure, so that the pressing part 431A can rotate in conjunction with the first rotating pressure block 223 in a direction perpendicular to the axial direction of the conveying rubber roller 41. This ensures that the first end of the pressing part 431A contacts the first rotating pressure block 223 when the second movable cover 22 moves to the closed position and rotates with the rotation of the first rotating pressure block 223, ensuring the immediacy and reliability of the triggering action and maintaining the stable performance of the printer.

[0122] Correspondingly, the drive unit 431b can convert the rotation of the pressing part 431A into the movement of the rubber roller mounting plate 432. The rotation of the pressing part 431A has a movement component in the direction perpendicular to the axis of the conveying rubber roller 41, and at least part of the drive unit 431b has a reversing function, which can convert the rotation of the pressing part 431A about the axis perpendicular to the conveying rubber roller 41 into the rotation of the rubber roller mounting plate 432 about the axis parallel to the conveying rubber roller 41, thereby realizing the driving effect of the floating rubber roller 42, ensuring the clamping effect of the workpiece 100 to be printed, and facilitating smooth tube feeding.

[0123] Referring to Figures 13 and 14, the main unit 1 includes a fixed column 11, the axis of which is parallel to the axis of the conveying roller 41. A roller mounting plate 432 is rotatably mounted on the fixed column 11. Specifically, the fixed column 11 is fixedly installed as part of the main unit 1 and will not move with the movement of the roller mounting plate 432. Since the axis of the fixed column 11 is parallel to the axis of the conveying roller 41, the roller mounting plate 432 connected to it can rotate in a direction parallel to the axis of the conveying roller 41, further driving the floating roller 42 closer to the conveying roller 41. The fixed column 11 ensures that the roller mounting plate 432 remains stable during rotation around its axis, reducing swaying or offset during rotation, thereby ensuring the accuracy of the floating roller 42 during movement. It also maintains the stability of the printable part 100 during subsequent movement of the printable part 100 by the floating roller 42 and the conveying roller 41.

[0124] In other embodiments, the roller mounting plate 432 can be movably mounted on the host 1 via a guide rail structure or other similar movable structure. In this embodiment, the use of the fixed column 11 enables the entire linkage structure 43 to effectively utilize the space parallel to the axial direction of the conveying roller 41, reducing the encroachment on the host 1 and facilitating the miniaturization of the printer.

[0125] Please refer to Figures 13 and 14. The main unit 1 has a first guide portion 12, and the rubber roller mounting plate 432 has a second guide portion 4321. The first guide portion 12 and the second guide portion 4321 cooperate to guide the rubber roller mounting plate 432 to rotate around the rotation center of the rubber roller mounting plate 432. The first guide portion 12 is located in the area between the rotation center of the rubber roller mounting plate 432 and the conveying rubber roller 41. It is understandable that, in order to further achieve precise driving of the floating rubber roller 42 by the rubber roller mounting plate 432, the host 1 is provided with a first guide part 12, and the rubber roller mounting plate 432 is provided with a second guide part 4321. The cooperation between the first guide part 12 and the second guide part 4321 can ensure that the rubber roller mounting plate 432 can maintain a precise movement path when rotating around its rotation center, and can always stay on the predetermined movement path during multiple rotations, thereby ensuring that the floating rubber roller 42 can accurately move to the corresponding position and achieve clamping of the workpiece 100 to be printed. In this embodiment, the cooperation of the first guide part 12 and the second guide part 4321 can drive the floating rubber roller 42 to move along the preset path to the corresponding position, improving the stability and reliability of the floating rubber roller 42 during the movement process.

[0126] Furthermore, since the first guide portion 12 is located between the rotation center of the roller mounting plate 432 and the conveying roller 41, the first guide portion 12 and the corresponding second guide portion 4321 do not occupy too much space, which is beneficial to the overall miniaturization design of the printer. In some embodiments, the first guide portion 12 is configured as a slide rail, and the second guide portion 4321 is configured as a slider corresponding to the slide rail, using a sliding engagement to achieve the guiding effect on the roller mounting plate 432. In other embodiments, other guiding methods can also be used, which are not limited herein.

[0127] Specifically, please continue to refer to Figures 13 and 14. One of the first guide portion 12 and the second guide portion 4321 is a guide post 121 and the other is a guide groove 4321A. The guide groove 4321A is an arc shape centered on the rotation center of the rubber roller mounting plate 432. The guide post 121 passes through the guide groove 4321A and guides the rubber roller mounting plate 432 to rotate around the rotation center of the rubber roller mounting plate 432. It should be noted that the guide post 121 is fixedly installed on the main unit 1, and its position will not move with the change of the position of the rubber roller mounting plate 432. It can serve as a reference point for its movement and has good stability. Correspondingly, the second guide part 4321 includes an arc-shaped guide groove 4321A. The guide post 121 passes through the guide groove 4321A and extends at least partially into the outside of the guide groove 4321A, ensuring that the rubber roller mounting plate 432 can move according to the arc shape of the guide groove 4321A when rotating around its rotation center. This can effectively reduce the risk of the rubber roller mounting plate 432 shaking or deviating during the movement process, and correspondingly, it can also improve the stability and reliability of the floating rubber roller 42 during the movement process.

[0128] Furthermore, in conjunction with the above-mentioned embodiments, the host 1 includes a fixed column 11, and the floating roller 42 rotates along the axial direction of the fixed column 11. The axial direction of the fixed column 11 and the axial direction of the guide column 121 are both parallel to the axial direction of the conveying roller 41. In this embodiment, the guide column 121 is at least partially movably connected to the roller mounting plate 432, and to a certain extent, it also provides support for the roller mounting plate 432. The fixed column 11 and the guide column 121 support and fix the roller mounting plate 432 at both ends. While ensuring that the roller mounting plate 432 can slide accurately along a certain moving path, it also provides support and protection for the roller mounting plate 432, thereby enhancing the overall stability of the printer.

[0129] Referring to Figures 12 to 14, the linkage structure 43 also includes a linkage elastic element 433. The second rotating pressure block 431 is movably connected to the rubber roller mounting plate 432 via the linkage elastic element 433. Specifically, the linkage elastic element 433 has an elastic travel along its length direction, providing an elastic connection between the second rotating pressure block 431 and the rubber roller mounting plate 432. It can be understood that the second rotating pressure block 431 and the rubber roller mounting plate 432 move in different directions. The second rotating pressure block 431 rotates about a direction perpendicular to the conveying rubber roller 41, and the rubber roller mounting plate 432 rotates about a direction parallel to the conveying rubber roller 41. The two are connected by the linkage elastic element 433, so that the distance of rotation of the second rotating pressure block 431 about a direction perpendicular to the conveying rubber roller 41 is converted into the elastic force of the linkage elastic element 433. This elastic force has a component force about a direction parallel to the conveying rubber roller 41. The component force in the corresponding direction can pull the rubber roller mounting plate 432 to move, thereby realizing the conveying of the floating rubber roller 42.

[0130] In addition, the linkage elastic element 433 has a certain elasticity, ensuring that there is a certain relative displacement between the second rotating pressure block 431 and the rubber roller mounting plate 432. Therefore, when the second movable cover 22 is in the closed position, the distance between the floating rubber roller 42 and the conveying rubber roller 41 also has a certain adjustment space. On the one hand, the relative adjustment space between the floating rubber roller 42 and the conveying rubber roller 41 can facilitate the floating rubber roller 42 and the conveying rubber roller 41 to adapt to more different sizes of printable parts 100, improving the versatility of the printer. On the other hand, the relative adjustment space between the floating rubber roller 42 and the conveying rubber roller 41 enables the printer to better adapt to the needs under different working conditions. For example, when the diameter of the printable part 100 changes or encounters greater resistance, the linkage elastic element 433 can automatically adapt and adjust the position of the floating rubber roller 42 to ensure that the clamping force is always appropriate, thereby ensuring that the printable part 100 can move smoothly.

[0131] Furthermore, the linkage structure 43 is configured to gradually separate from and move in the opposite direction to the second movable cover 22 as the second movable cover 22 moves from the closed position to the open position, thereby driving the floating rubber roller 42 away from the conveying rubber roller 41 in a direction perpendicular to the axial direction of the conveying rubber roller 41. It is understood that in this embodiment, when the second movable cover 22 moves between the closed and open positions, the floating rubber roller 42 can also move between the clamping and releasing positions along with the movement of the second movable cover 22. Specifically, when the second movable cover 22 is in the closed position, the floating rubber roller 42 is in the clamping position, at which time the distance between the floating rubber roller 42 and the conveying rubber roller 41 is closest; when the second movable cover 22 is in the open position, the floating rubber roller 42 is in the releasing position, at which time the distance between the floating rubber roller 42 and the conveying rubber roller is farthest. In this embodiment, the linkage structure 43 can be configured to realize bidirectional movement of the floating rubber roller 42, thereby reducing manual operation of the printable part 100 before and after printing, further enhancing the automation level of the printer, and improving the reliability of the printer.

[0132] Understandably, in some embodiments, the linkage structure 43 includes a second rotating pressure block 431, a rubber roller mounting plate 432, and a linkage elastic element 433. Understandably, when the floating rubber roller 42 is in the clamping position, the linkage elastic element 433 is in a stretched state. Therefore, when the second movable cover 22 is gradually opened, the linkage elastic element 433 has a travel distance from the stretched state to the original state. The linkage elastic element 433 can drive the floating rubber roller 42 from the clamping position back to the release position, thereby realizing the bidirectional movement of the floating rubber roller 42.

[0133] In some other embodiments, referring to Figures 12 to 14, the linkage structure 43 further includes a reset elastic element 434. One end of the reset elastic element 434 is connected to the host 1, and the other end is connected to the part of the linkage structure 43 where the floating rubber roller 42 is mounted. It is understood that when the second movable cover 22 moves between the closed and open positions, the floating rubber roller 42 can also move between the clamping and releasing positions along with the movement of the second movable cover 22. Specifically, when the second movable cover 22 is in the closed position, the floating rubber roller 42 is in the clamping position, at which time the distance between the floating rubber roller 42 and the transfer rubber roller 41 is closest. When the second movable cover 22 is in the open position, the floating rubber roller 42 is in the releasing position, at which time the distance between the floating rubber roller 42 and the transfer rubber roller is farthest. The reset elastic element 434 is configured to drive the floating rubber roller 42 to move from the clamping position to the releasing position, thereby reducing manual operation of the printable part 100 during the post-printing process, further enhancing the automation level of the printer, and improving the reliability of the printer.

[0134] In some embodiments, the linkage structure 43 includes both a reset elastic element 434 and a linkage elastic element 433, and the reset elastic element 434 and the linkage elastic element 433 are located at both ends of the roller mounting plate 432. It is understood that, according to the above embodiments, the linkage elastic element 433 can also play a certain reset role. The linkage elastic element 433 and the reset elastic element 434 work together on the roller mounting plate 432 to ensure that the floating roller 42 can move to the release position more quickly and smoothly. Even if the effect of one of the reset elastic element 434 and the linkage elastic element 433 is weakened, the other can play a supplementary role, so that the printer can maintain good stability during long-term use.

[0135] Referring to Figures 13 or 16, the conveying roller 41 includes a first gear section 411, and the floating roller 42 includes a second gear section 421. The printer 100 also includes a drive assembly 5, which includes a drive motor and a transmission wheel set 51. The drive motor is connected to the transmission wheel set 51 and configured to drive the transmission wheel set 51 to rotate, so that the transmission wheel set 51 drives the first gear section 411 and the second gear section 421 to rotate synchronously. In this embodiment, the drive motor is configured to provide stable power output and transmit power to the first gear section 411 and the second gear section 421 through the transmission wheel set 51. The first gear section 411 is configured to drive the conveying roller to rotate, and the second gear section 421 is configured to drive the floating roller 42 to rotate, thereby ensuring that the conveying roller 41 and the floating roller 42 can rotate synchronously, improving the smoothness of the conveying roller 41 and the floating roller 42 in feeding the tube.

[0136] In some embodiments, when the second movable cover 22 is in the closed position and the floating rubber roller 42 and the conveying rubber roller 41 are configured to clamp the workpiece 100 to be printed, the first gear portion 411 and the second gear portion 421 also mesh; the transmission wheel set 51 includes a first gear, which meshes with the first gear portion 411, or the first gear meshes with the second gear portion 421, and the drive motor is connected to the first gear. It is understood that in the embodiments of this application, when the first gear portion 411 and the second gear portion 421 mesh, the floating rubber roller 42 and the conveying rubber roller 41 can rotate synchronously.

[0137] The transmission wheel assembly 51 includes a first gear, which can mesh with a first gear section 411 or with a second gear section 421. In some embodiments, the drive motor transmits power to the first gear section 411 through the first gear, thereby driving the conveying rubber roller 41 to rotate. Since the first gear section 411 meshes with the second gear section 421, the floating rubber roller 42 also rotates synchronously. In other embodiments, the drive motor transmits power to the second gear section 421 through the first gear, thereby driving the floating rubber roller 42 to rotate. Since the first gear section 411 meshes with the second gear section 421, the conveying rubber roller 41 also rotates synchronously. In the above embodiments, either the first gear section 411 or the second gear section 421 is a driving gear, and the other is a driven gear. The drive motor can drive the driven gear to rotate by driving the driving gear, thereby reducing the number of drive motors for the driven gear and the number of gears in the transmission wheel assembly 51 connected to it, thus simplifying the design of the drive assembly 5 and facilitating subsequent maintenance and repair.

[0138] In other embodiments, referring to Figures 14 to 16, when the floating roller 42 and the conveying roller 41 are configured to clamp the workpiece 100 to be printed, the first gear portion 411 and the second gear portion 421 are spaced apart; the transmission wheel set 51 includes a second gear and a third gear that mesh with each other, the second gear meshes with the first gear portion 411, the third gear meshes with the second gear portion 421, and the drive motor is connected to the second gear. Understandably, when the printer is configured to print on a large-diameter workpiece 100, the distance between the floating roller 42 and the conveying roller 41 is relatively large. In some cases, the first gear section 411 and the second gear section 421 are spaced apart. In this case, to drive the first gear section 411 and the second gear section 421 to rotate in opposite directions, the transmission wheel assembly 51 includes a second gear and a third gear that mesh with each other. Understandably, the second gear rotates in the forward direction, thereby driving the first gear section 411 and the third gear to rotate in the reverse direction. The reverse rotation of the third gear further drives the second gear section 421 to rotate in the forward direction, thus ensuring the opposite rotation between the first gear section 411 and the second gear section 421. The drive motor drives the second gear to drive the rotation of the third gear, the first gear section 411, and the second gear section 421, thereby simplifying the design of the drive assembly 5 and facilitating subsequent maintenance and repair.

[0139] In some embodiments, the transmission wheel assembly 51 includes two fourth gears, one of which meshes with the first gear section 411, and the other fourth gear meshes with the second gear section 421. The drive assembly 5 includes two drive motors, each connected to one of the fourth gears, and the two drive motors drive the two fourth gears to rotate synchronously. It is understood that the drive assembly 5 includes two motors, each driving one of the two fourth gears. One fourth gear meshes with the first gear section 411, and the other fourth gear meshes with the second gear section 421. The two fourth gears do not interfere with each other. By adjusting the two drive motors, the rotation speeds of the conveying roller 41 and the floating roller 42 are ensured to be consistent. In this embodiment, the use of two drive motors and two fourth gears provides redundancy. Even if one drive motor or gear fails, the other can continue to operate, thereby reducing the failure of the conveying effect due to a single motor failure and improving the reliability and fault tolerance of the printer.

[0140] Referring to Figures 10, 15, and 16, the host unit 1 includes a base 13. The base 13 has a conveying space and a tube placement groove 131 and a movement groove 132 communicating with the conveying space. The tube placement groove 131 and the movement groove 132 are connected, and the floating rubber roller 42 moves within the movement groove 132 to approach or move away from the conveying rubber roller 41. Both the conveying rubber roller 41 and the floating rubber roller 42 are located within the conveying space. In this embodiment, the base 13 is configured to provide internal installation space, and the base 13 is configured to cooperate with the second movable cover 22 to reduce the influence of external factors on the internal structure of the printer. Specifically, the tube placement groove 131 is configured to place the printable part 100 to support its movement. The tube placement groove 131 also facilitates user operation. In actual use, it is only necessary to place the printable part 100 into the tube placement groove 131. The tube placement groove 131 can also guide the printable part 100, making it easy for the printable part 100 to smoothly enter the conveying assembly 4. It is understood that the floating roller 42 has a travel distance relative to the base 13. In order not to hinder the movement of the floating roller 42, the base 13 is provided with a travel groove 132. The floating roller 42 passes through the travel groove 132 and is located in the conveying space. The floating roller 42 can move along the travel groove 132 to clamp and release the workpiece 100 to be printed.

[0141] In some embodiments, referring to FIG16, the tube-laying groove 131 has a tube-laying support surface 131A. Along the axial direction of the conveying roller 41, both the first gear portion 411 and the second gear portion 421 are located below the tube-laying support surface 131A, with a distance M between them, where 0.5mm ≤ M ≤ 20mm. It should be noted that in some embodiments, the heights of the first gear portion 411 and the second gear portion 421 are equal. In this case, the distance M is defined as the distance along the axial direction of the conveying roller 41 between the tube-laying support surface 131A and the upper side surface of either the first gear portion 411 or the second gear portion 421. In other embodiments, the heights of the first gear portion 411 and the second gear portion 421 are unequal. In this case, the distance M is defined as the distance along the axial direction of the conveying roller 41 from the upper side surface of the gear portion closer to the tube-laying support surface 131A to the tube-laying support surface 131A.

[0142] In some embodiments of this application, 0.5mm≤M≤20mm, this setting can increase the gap between the printable part 100 and the first gear part 411 or the second gear, thereby reducing the risk of the printable part 100 being caught in the first gear part 411 or the second gear part 421 corresponding to the conveying assembly 4, and ensuring smooth tube feeding.

[0143] Furthermore, referring to Figures 17 and 18, the floating rubber roller 42 has a first limit position and a second limit position. In the first limit position, the distance between the floating rubber roller 42 and the conveying rubber roller 41 is the largest, and in the second limit position, the distance between the floating rubber roller 42 and the conveying rubber roller 41 is the smallest. The reciprocating stroke of the floating rubber roller 42 in the first limit position and the second limit position is X1, 10mm≤X1≤12mm; and / or, in the second limit position, the radial distance between the floating rubber roller 42 and the conveying rubber roller 41 is X2, 0.1mm≤X2≤0.5mm. Understandably, when the second movable cover 22 is opened, the linkage structure 43 drives the floating rubber roller 42 to the first extreme position, allowing the workpiece 100 to be printed to be smoothly inserted or removed. At this time, the distance between the floating rubber roller 42 and the conveying rubber roller 41 is relatively large, avoiding excessive clamping of the workpiece 100 and ensuring that the workpiece 100 can be released stably. When the second movable cover 22 is closed, the linkage structure 43 drives the floating rubber roller 42 to the second extreme position, bringing the floating rubber roller 42 closer to the conveying rubber roller 41, clamping the workpiece 100 and pushing it through the conveying space. The reciprocating stroke of the floating rubber roller 42 between the first and second extreme positions is X1, and 10mm≤X1≤12mm. This stroke range ensures that the floating rubber roller 42 can flexibly adjust the distance between itself and the conveying rubber roller 41 under different conditions, which can both meet the clamping requirements of the workpiece 100 and ensure the stability of the workpiece 100 during the transmission process.

[0144] In another embodiment, at the second extreme position, the radial distance between the floating rubber roller 42 and the conveying rubber roller 41 is X2, 0.1mm≤X2≤0.5mm. This radial distance ensures that there is a certain gap between the floating rubber roller 42 and the conveying rubber roller 41 at the second extreme position, avoiding friction between the floating rubber roller 42 and the conveying rubber roller 41. At the same time, this gap is not too large, so that the workpiece 100 to be printed can be clamped and conveyed.

[0145] This application also provides a printer that can check the location of faults while in operation, enabling technicians to determine the specific location of the fault in a timely manner, thereby improving maintenance efficiency.

[0146] Specifically, referring to Figure 19, the printer in this embodiment includes a main unit 1 and a cover assembly 2. The main unit 1, as the core supporting part of the entire printer, may include a base 13 and a printing assembly and a transport assembly mounted on the base 13. Exemplarily, the base 13 serves as the basic support structure for the entire main unit 1, and its interior is provided with a mounting cavity 300, providing a stable mounting space for the printing assembly and the transport assembly. The printing assembly includes a print head and a ribbon cartridge 14. The print head is the core component for printing the wire marking information, and can accurately print characters, numbers, or symbols on the surface of the wire marking tube according to preset instructions. The ribbon cartridge 14 is installed in the mounting cavity 300 of the base 13 and is configured to provide the ribbon medium required for printing. The transport assembly includes a floating roller 42, which is also installed in the mounting cavity 300 of the base 13 and is configured to transport the wire marking tube. The base 13 also has a support portion 130 configured to support the workpiece 100 (wire tube) to be printed. For example, in this embodiment, the support portion 130 is a tube placement groove formed on the base 13. The wire tube passes through the tube placement groove on the base 13 and passes through the floating rubber roller 42. The floating rubber roller 42 gradually transports the wire tube to the corresponding position of the print head through rotational movement to ensure the smooth progress of the printing operation.

[0147] In this embodiment, the cover assembly 2 includes a first movable cover 21 and a second movable cover 22. Both the first movable cover 21 and the second movable cover 22 are movably connected to the base 13. The movable connection can be achieved by using a hinge, slide rail, or other structure to ensure that the first movable cover 21 and the second movable cover 22 can be opened and closed flexibly, facilitating the installation and removal of the wire gauge tube.

[0148] The first movable cover 21 is configured to press against the workpiece 100 to be printed. For example, the side of the first movable cover 21 that contacts the workpiece 100 has a pressing structure, such as an elastic rubber pad or pressure block, to provide appropriate pressing force according to the type and material of the workpiece 100. When the second movable cover 22 is opened for troubleshooting, the pressing structure of the first movable cover 21 maintains stable pressing against the wire gauge tube, ensuring that the position of the wire gauge tube remains essentially the same as during normal printing. This provides great convenience for technicians, who can directly observe the relative positional relationship between the wire gauge tube and the print head, checking for wire gauge tube feeding jams, abnormal wear or damage to the print head, etc., without worrying that opening the cover would cause the wire gauge tube position to change and interfere with fault diagnosis.

[0149] The shape and size of the second movable cover 22 are adapted to the space above the support section 130 of the host unit 1. During normal printing, the second movable cover 22 can tightly cover the support section 130, creating a closed and stable environment for printing operations, reducing interference from external factors such as dust and airflow, and ensuring printing accuracy. During troubleshooting, the opening action of the second movable cover 22 is independent of the first movable cover 21; that is, opening the second movable cover 22 will not cause the first movable cover 21 to move or change position. Thus, after opening the second movable cover 22, technicians can directly inspect some components inside the printer (such as the printable part 100 located below the second movable cover 22, and some structures of the print head, etc.). At the same time, since the first movable cover 21 remains closed and presses against the signal tube, technicians can observe the operation of the entire printing system and quickly locate the fault. For example, when printing quality problems occur, technicians can directly observe the relative position and contact between the print head and the workpiece 100 to quickly determine whether it is a problem with the print head's precision, whether there are foreign objects interfering with the printing process, or whether the conveying components are causing abnormal transport of the workpiece 100.

[0150] As can be seen, in this embodiment, since the first movable cover 21 can still remain closed and press against the printable part 100 after the second movable cover 22 is opened, technicians can perform troubleshooting in a state close to normal printer operation, making the fault point more accurate and faster, greatly shortening the troubleshooting time and improving maintenance efficiency.

[0151] In some embodiments, the printer further includes a locking structure 216 configured to lock the first movable cover 21 onto the host 1 when the first movable cover 21 is closed.

[0152] The locking structure 216 can take various forms. In one embodiment, the locking structure 216 is an electromagnetic locking structure. The locking structure 216 includes an electromagnetic induction element simultaneously disposed on the first movable cover 21 and the main unit 1. When the first movable cover 21 is closed in place, the electromagnetic induction element is energized to generate a magnetic force, which tightly attracts the first movable cover 21 to the main unit 1. The above-described electromagnetic locking method has the advantages of fast response, firm locking, and easy control, and can be automatically operated through the printer's control system.

[0153] In another embodiment, please refer to FIG20, which is a partial structural schematic diagram of the first movable cover 21 provided in this application embodiment. The locking structure 216 is a mechanical latch structure. The locking structure 216 includes a latch 2161 and a latch groove 2162 that cooperate with each other. One of the host 1 and the first movable cover 21 is provided with the latch 2161, and the other is provided with the latch groove 2162. Exemplarily, the latch 2161 is provided on the edge of the first movable cover 21, and the latch groove 2162 is provided on the host 1 at the position corresponding to the latch 2161. The latch 2161 has a certain strength and elasticity, and its shape is adapted to the latch groove 2162, so that it can be accurately inserted into the latch groove 2162 when the first movable cover 21 is closed, thereby achieving stable locking. For example, the latch 2161 can be made of metal and has a certain degree of bending elasticity. During the closing process, when the latch 2161 contacts the edge of the latch groove 2162, it can bend and deform to a certain extent, smoothly slide into the latch groove 2162, and then return to its original shape, tightly engaging with the latch groove 2162. The latch groove 2162 is formed on the inner wall of the mounting cavity 300, and the depth and width of the latch groove 2162 match the size of the latch 2161, ensuring that the latch 2161 will not easily come out after insertion.

[0154] There are clearances between the locking groove 2162 and the floating rubber roller 42, and between the locking groove 2162 and the ribbon cartridge 14. These clearances are no less than 1.5cm and no more than 5cm. If the clearance is less than 1.5cm, it will be difficult for the operator to smoothly insert their hand into the mounting cavity 300 to operate the latch 2161 when unlocking the locking structure 216. For example, when the operator attempts to insert their finger into the locking groove 2162 to unlock, the space is too narrow, and the finger may not be able to accurately reach the latch 2161, or it may easily touch the floating rubber roller 42 or the ribbon cartridge 14 during operation. This not only affects the smooth progress of the unlocking operation but may also cause the floating rubber roller 42 or the ribbon cartridge 14 to shift or be damaged, affecting the normal operation of the printer. While a clearance greater than 5cm provides more operating space for the operator, it makes the internal structure of the main unit 1 less compact, increasing the overall size and weight of the printer.

[0155] In this embodiment, due to the reasonable layout of the latch 2161 and the latching groove 2162, the operator can easily perform locking and unlocking operations when using the printer. When installing the printable part 100, simply open the first movable cover 21, place the printable part 100 on the support part 130, and then close the first movable cover 21. The latch 2161 will automatically lock with the latching groove 2162, making the operation simple and quick. When it is necessary to replace the printable part 100 or perform equipment maintenance, the operator's hand can easily reach into the mounting cavity 300 to unlock it without worrying about touching other parts, thus improving the convenience and efficiency of operation.

[0156] In some embodiments, when the latch 2161 is engaged with the latch groove 2162, a portion of the latch 2161 protrudes from the opening of the latch groove 2162. This protrusion design allows the operator to easily unlock the latch 2161 by directly contacting it with their hand. For example, the protruding portion of the latch 2161 can be designed as an arc or raised shape that is easy for the fingers to grip, and its surface has a certain roughness to increase the friction between the finger and the latch 2161. Thus, the operator only needs to gently press their finger against the protruding portion of the latch 2161 and apply appropriate force to disengage the latch 2161 from the latch groove 2162, greatly simplifying the unlocking process and improving the convenience and efficiency of the operation.

[0157] The length of the portion of the latch 2161 protruding from the latch groove 2162 is less than the clearance. This solves the interference problem between the latch 2161 and internal components such as the floating roller 42 and the ribbon cartridge 14. Because the protruding length of the latch 2161 is within the clearance range, even if part of the latch 2161 protrudes during the latching and unlocking process, it will not come into contact or collide with the floating roller 42 or the ribbon cartridge 14. For example, when an operator performs an unlocking operation, even if a certain force is applied to the latch 2161 by the finger, causing some displacement, its limited protruding length will prevent it from entering the operating space of the floating roller 42 or the ribbon cartridge 14, thus avoiding interference with these components, ensuring the normal operation of all internal components of the printer, and improving the reliability and stability of the equipment. It also helps protect the latch 2161 and internal components, reducing wear and damage caused by collisions and extending the service life of the components.

[0158] As shown in Figure 19, in order to further improve the pressure effect on the wire tube, the second movable cover 22 in this embodiment also includes a pressure cap assembly 224. Specifically, the pressure cap assembly 224 is connected to the side of the second movable cover 22 facing the first movable cover 21. When the second movable cover 22 is fully closed, the pressure cap assembly 224 will apply additional pressure to the first movable cover 21, so that the pressure component on the first movable cover 21 presses the wire tube more tightly.

[0159] In some embodiments, the pressure cap assembly 224 includes at least one pressure roller configured to press against the first movable cover 21. The pressure roller is made of a material with good wear resistance and appropriate hardness, such as rubber or plastic, so that the pressure roller undergoes slight deformation when in contact with the first movable cover 21, thus applying more uniform pressure to the first movable cover 21. When two pressure rollers are provided, the two pressure rollers are spaced apart. The spaced arrangement allows the first movable cover 21 to be subjected to more uniform force when pressure is applied, avoiding problems such as deformation of the first movable cover 21 or insecure fixing of the wire tube due to excessive or insufficient local pressure.

[0160] 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 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 component 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.

[0161] The above are merely preferred embodiments of this application and are 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, wherein, include: The host has a carrier portion configured to carry the workpiece to be printed; as well as Cover components, including: A first movable cover is movably connected to the host computer and configured to press against the workpiece to be printed; as well as The second movable cover is movably connected to the main unit. During the process of the second movable cover moving from the closed state to the open state, the second movable cover is linked with the first movable cover to drive the first movable cover to move to the open state.

2. The printer according to claim 1, wherein, Both the first movable cover and the second movable cover are rotatably connected to the main unit, and the first movable cover is located between the second movable cover and the main unit.

3. The printer according to claim 1, wherein, The cover assembly also includes a transmission component rotatably connected to the host computer. The first movable cover is linked to the second movable cover via the transmission component, so that when the second movable cover is opened, it drives the first movable cover to open.

4. The printer according to claim 3, wherein, The cover assembly further includes a first elastic element, the second movable cover includes a drive arm rotatably connected to the main unit, the first movable cover includes a linkage arm rotatably connected to the main unit, one end of the transmission element is configured to abut against the drive arm, and the other end is connected to the linkage arm through the first elastic element; The rotation directions of the first movable cover and the second movable cover both include an opening direction and a closing direction, which are opposite to each other. When the second movable cover rotates along the closing direction, the driving arm abuts against the transmission member and drives the transmission member to rotate along the opening direction. When the transmission member rotates along the opening direction, it drives the linkage arm to rotate along the closing direction via the first elastic member, so that the first movable cover closes on the host. Furthermore, when the first elastic element is in the closed state, the first elastic element stores elastic potential energy. When the drive arm rotates along the opening direction, the drive arm disengages from the transmission element, and the first elastic element releases its elastic potential energy, thereby driving the linkage arm to rotate along the opening direction so that the first movable cover opens.

5. The printer according to claim 4, wherein, The transmission component includes: The connecting part is connected to the linkage arm; and The abutting part is connected at an angle to the connecting part and is configured to abut against the drive arm, and the connection between the abutting part and the connecting part is rotatably connected to the main unit.

6. The printer according to claim 5, wherein, The drive arm has a first contact surface, and the abutting portion has a second contact surface configured to abut against the first contact surface. The first contact surface is an arc-shaped surface, and the second contact surface is a plane.

7. The printer according to claim 4, wherein, The first elastic element includes one of a tension spring and an elastic rubber element.

8. The printer according to claim 1, wherein, The cover assembly further includes a second elastic element, one end of which is connected to the first movable cover and the other end of which is connected to the host. The second elastic element stores elastic potential energy when the first movable cover is in the closed state.

9. The printer according to claim 8, wherein, The first movable cover includes: The linkage arm is rotatably connected to the main unit; and The limiting part is located on one side of the linkage arm; The second elastic member is located between the limiting part and the linkage arm, and one end of the second elastic member abuts against the linkage arm and the other end abuts against the host.

10. The printer according to claim 8, wherein, The second elastic element includes one of a torsion spring and an elastic rubber element.

11. The printer according to claim 1, wherein, The first movable cover includes a rotating arm, and the main unit also has a mounting slot configured for the rotating arm to extend into, the rotating arm being rotatably connected to the main unit within the mounting slot.

12. The printer according to claim 11, wherein, The side wall of the rotating arm abuts against the inner side wall of the mounting groove, and one of the side wall of the rotating arm and the inner side wall of the mounting groove has a third contact surface, which is an arc-shaped surface.

13. The printer according to claim 11, wherein, The side wall of the rotating arm abuts against the inner side wall of the mounting groove, and the contact area between the side wall of the rotating arm and the inner side wall of the mounting groove is not less than 1 mm. 2 and no larger than 4mm 2 .

14. The printer according to claim 1, wherein, The first movable cover includes a first cover body and a pressing component configured to press against the workpiece to be printed, the pressing component being elastically connected to the first cover body.

15. The printer according to claim 14, wherein, The pressing component includes at least one pressing block, and a third elastic element is provided between the pressing block and the first cover. One end of the third elastic element is connected to the pressing block, and the other end is connected to the first cover. The third elastic element stores elastic potential energy when the pressing block presses against the printable part.

16. The printer according to claim 1, wherein, The second movable cover is rotatably mounted on the main unit and has a closed position and an open position; The printer also includes: A printing component, installed in the host computer, is configured to print ink onto the surface of the workpiece; and A conveying component is located upstream of the printing component in the direction of movement of the workpiece to be printed; The conveying assembly includes a conveying roller, a floating roller, and a linkage structure. The conveying roller is rotatably mounted on the host machine, the floating roller is rotatably mounted on the linkage structure, and the linkage structure is mounted on the host machine. The linkage structure is configured to link with the second movable cover as the second movable cover moves from the open position to the closed position, and to drive the floating roller to approach the conveying roller to clamp the workpiece to be printed. The conveying roller and the floating roller rotate towards each other to convey the workpiece to be printed to the printing assembly.

17. The printer according to claim 16, wherein, The second movable cover is rotatably mounted on the main unit in a direction perpendicular to the axis of the conveying roller; The linkage structure is configured to move in conjunction with the second movable cover and move in the forward direction as the second movable cover moves from the open position to the closed position, so as to drive the floating rubber roller to approach the conveying rubber roller in a direction perpendicular to the axial direction of the conveying rubber roller.

18. The printer according to claim 16, wherein, The second movable cover includes a first rotating pressure block; The linkage structure includes a second rotating pressure block and a rubber roller mounting plate connected to the second rotating pressure block. The rubber roller mounting plate is rotatably mounted on the main unit in a direction parallel to the axial direction of the conveying rubber roller, and the floating rubber roller is mounted on the rubber roller mounting plate. The second rotating pressure block is rotatably mounted on the main unit in a direction perpendicular to the axis of the conveying rubber roller. During the process of the second movable cover moving from the open position to the closed position, the first rotating pressure block is configured as the second rotating pressure block and drives the second rotating pressure block to rotate, thereby driving the rubber roller mounting plate to rotate relative to the main unit in a direction parallel to the axis of the conveying rubber roller, and thus driving the floating rubber roller to move closer to the conveying rubber roller.

19. The printer according to claim 18, wherein, The second rotating pressure block includes a pressing part and a driving part. The pressing part is rotatably mounted on the main unit. The pressing part includes a first end configured to contact the first rotating pressure block. The driving part is connected to the portion of the pressing part away from the first end, and the driving part is movably connected to the rubber roller mounting plate.

20. The printer according to claim 18, wherein, The main unit includes a fixed column, the axis of which is parallel to the axis of the conveying rubber roller, and the rubber roller mounting plate is rotatably mounted on the fixed column around the fixed column.

21. The printer according to claim 18, wherein, The main unit has a first guide portion, and the rubber roller mounting plate has a second guide portion. The first guide portion and the second guide portion cooperate to guide the rubber roller mounting plate to rotate around the rotation center of the rubber roller mounting plate. The first guide portion is located in the area between the rotation center of the rubber roller mounting plate and the conveying rubber roller.

22. The printer according to claim 21, wherein, One of the first guide portion and the second guide portion is a guide post and the other is a guide groove. The guide groove is an arc shape centered on the rotation center of the rubber roller mounting plate. The guide post passes through the guide groove to guide the rubber roller mounting plate to rotate around the rotation center of the rubber roller mounting plate.

23. The printer according to claim 18, wherein, The linkage structure also includes a linkage elastic element, and the second rotating pressure block is movably connected to the rubber roller mounting plate through the linkage elastic element.

24. The printer according to claim 16, wherein, The linkage structure is configured such that, as the second movable cover moves from the closed position to the open position, it gradually separates from the second movable cover and moves in the opposite direction, thereby driving the floating rubber roller away from the conveying rubber roller in a direction perpendicular to the axial direction of the conveying rubber roller.

25. The printer according to claim 16, wherein, The linkage structure also includes a reset elastic element, one end of which is connected to the host and the other end of which is connected to the part of the linkage structure where the floating rubber roller is installed.

26. The printer according to claim 16, wherein, The conveying roller includes a first gear section, and the floating roller includes a second gear section; The printer further includes a drive assembly, which includes a drive motor and a transmission wheel assembly. The drive motor is connected to the transmission wheel assembly and configured to drive the transmission wheel assembly to rotate, so that the transmission wheel assembly drives the first gear section and the second gear section to rotate synchronously.

27. The printer according to claim 26, wherein, When the floating rubber roller and the conveying rubber roller are configured to clamp the workpiece to be printed, the first gear portion meshes with the second gear portion; The transmission wheel set includes a first gear, which meshes with a first gear section, or the first gear meshes with a second gear section, and the drive motor is connected to the first gear.

28. The printer according to claim 26, wherein, When the floating rubber roller and the conveying rubber roller are configured to clamp the workpiece to be printed, the first gear portion and the second gear portion are spaced apart. The transmission wheel assembly includes a second gear and a third gear that mesh with each other. The second gear meshes with the first gear section, and the third gear meshes with the second gear section. The drive motor is connected to the second gear.

29. The printer according to claim 26, wherein, The transmission gear set includes two fourth gears, one of which meshes with the first gear section, and the other fourth gear meshes with the second gear section; The drive assembly includes two drive motors, each drive motor is connected to one of the fourth gears, and the two drive motors drive the two fourth gears to rotate synchronously.

30. The printer according to claim 26, wherein, The host includes a base, the base having a conveying space and a tube placement groove and a positioning groove communicating with the conveying space, the tube placement groove and the positioning groove communicating with each other, and the floating rubber roller moving within the positioning groove to approach or move away from the conveying rubber roller. Both the conveying roller and the floating roller are located in the conveying space.

31. The printer according to claim 30, wherein, The tube-laying groove has a tube-laying support surface. In the axial direction of the conveying rubber roller, the first gear part and the second gear part are both located below the tube-laying support surface, and the distance between them is M, 0.5mm≤M≤20mm.

32. The printer according to claim 16, wherein, The floating rubber roller has a first limit position and a second limit position. At the first limit position, the distance between the floating rubber roller and the conveying rubber roller is the largest, and at the second limit position, the distance between the floating rubber roller and the conveying rubber roller is the smallest. The stroke of the floating rubber roller reciprocating between the first and second extreme positions is X1, where 10mm ≤ X1 ≤ 12mm; and / or, At the second extreme position, the radial distance between the floating rubber roller and the conveying rubber roller is X2, 0.1mm≤X2≤0.5mm.

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