Printer

Abstract

The printer comprises a host and a cover assembly, and the host is provided with a bearing part used for bearing a to-be-printed piece; the cover assembly comprises a first movable cover and a second movable cover, and the first movable cover is movably connected with the host and used for abutting against a to-be-printed piece; the second movable cover is movably connected with the host, and the second movable cover covers the bearing part in a closed state so as to perform printing operation; the first movable cover is in a closed state and abuts against the to-be-printed piece when the second movable cover is opened. According to the printer, a technician can check the position of the fault point in the working state of the printer, the specific position of the fault is judged in time, and therefore the maintenance efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of printing equipment, in particular to a printer. BACKGROUND

[0002] In today's era of rapid development of science and technology, printers have become indispensable equipment in many fields. The line tube printer is one of them. The line tube printer can accurately print identification information for various cables, greatly facilitating the installation, management, maintenance, and troubleshooting of the cable workflow.

[0003] The printer is usually composed of a main machine and a cover. The normal working process is to install the to-be-printed object on the main machine, such as threading the line tube on the main machine, and then closing the cover to press the to-be-printed object, so as to ensure that the to-be-printed object maintains a stable position during printing, so as to complete the printing task.

[0004] However, the printer will inevitably malfunction during long-term operation, such as the line tube being stuck in a certain place in the main machine during transportation. When a fault occurs, a technician needs to check and repair it. In related technologies, if you want to check the fault point position, you must open the cover. But once the cover is opened, the to-be-printed object loses the pressing effect of the cover. Since the operation of the printer often depends on the to-be-printed object being in a stable and pressed state, the entire printer cannot be checked for fault point position in a working state after the cover is opened. Therefore, when a fault occurs, it is difficult for the technician to determine the specific location of the fault in a timely and accurate manner, which reduces the maintenance efficiency. UTILITY MODEL CONTENT

[0005] The printer provided by the embodiments of the present application can check the fault point position in a working state, so that the technician can determine the specific location of the fault in a timely manner, thereby improving the maintenance efficiency.

[0006] In order to achieve the above purpose, the printer provided by the embodiments of the present application comprises:

[0007] a main machine having a bearing part for bearing a to-be-printed object; and

[0008] a cover assembly comprising:

[0009] a first movable cover movably connected with the main machine and used for pressing the to-be-printed object; and

[0010] a second movable cover movably connected with the main machine, the second movable cover covering the bearing part when the second movable cover is in a closed state to perform a printing operation;

[0011] wherein the first movable cover is in a closed state and presses the to-be-printed object when the second movable cover is opened.

[0012] In some embodiments, the printer further comprises a locking structure for locking the first movable cover on the main body when the first movable cover is closed.

[0013] In some embodiments, the locking structure comprises a lock and a slot, one of the main body and the first movable cover is provided with the lock and the other is provided with the slot.

[0014] In some embodiments, the main body comprises a base, a conveying roller for conveying the object to be printed, and a ribbon cartridge for providing printing medium, the base has a mounting cavity for mounting the conveying roller and the ribbon cartridge;

[0015] The slot is formed on the inner wall of the mounting cavity, and the slot has a clearance gap between the slot and the conveying roller and between the slot and the ribbon cartridge.

[0016] In some embodiments, the clearance gap is not less than 1.5 cm and not more than 5 cm.

[0017] In some embodiments, when the lock is engaged with the slot, the lock partially protrudes from the slot.

[0018] In some embodiments, the length of the part of the lock protruding from the slot is less than the clearance gap.

[0019] In some embodiments, the first movable cover and the second movable cover are rotatably connected to the main body, and the first movable cover is located between the second movable cover and the main body.

[0020] In the process of rotating the second movable cover from the open state to the closed state, the second movable cover is linked with the first movable cover to drive the first movable cover to rotate to the closed state.

[0021] In some embodiments, the cover assembly further comprises a transmission member rotatably connected to the main body, and the second movable cover is linked with the first movable cover through the transmission member.

[0022] In some embodiments, the cover assembly further comprises a first elastic member, the second movable cover comprises a driving arm rotatably connected to the main body, the first movable cover comprises a linkage arm rotatably connected to the main body, one end of the transmission member is used to abut against the driving arm, and the other end is connected to the linkage arm through the first elastic member.

[0023] The rotation direction of the first movable cover and the second movable cover each includes a cover opening direction and a cover closing direction, the driving arm and the transmission member abut when the second movable cover rotates in the cover closing direction, and the transmission member drives the linkage arm to rotate in the cover closing direction through the first elastic member when the transmission member rotates in the cover opening direction, so that the first movable cover is closed on the main machine.

[0024] In some embodiments, the transmission member includes:

[0025] The connecting portion is connected with the linkage arm; and

[0026] The abutting portion is connected with the connecting portion at an angle, used for abutting with the driving arm, and the connection between the abutting portion and the connecting portion is rotationally connected with the main machine.

[0027] The first elastic member includes one of a tension spring and an elastic rubber member.

[0028] In some embodiments, the second movable cover includes a second cover body and a cover pressing assembly, the second cover body is rotationally connected with the main machine, and the cover pressing assembly is connected to a side of the second cover body facing the first movable cover.

[0029] In some embodiments, the cover assembly further includes a second elastic member, one end of the second elastic member is connected with the first movable cover, the other end is connected with the main machine, and the second elastic member stores elastic potential energy when the first movable cover is in a closed state.

[0030] In some embodiments, the first movable cover further includes a limiting portion on one side of the linkage arm, the second elastic member is located between the limiting portion and the linkage arm, one end of the second elastic member abuts with the linkage arm, and the other end is connected with the base.

[0031] In some embodiments, the main machine further has a limiting column, one end of the second elastic member abuts with the linkage arm, and the other end is connected with the limiting column.

[0032] The second elastic member is a torsion spring or an elastic rubber member.

[0033] The printer provided by the embodiment of the present application comprises a second movable cover and a first movable cover, the first movable cover is used for pressing the to-be-printed object against the bearing part, and the first movable cover still maintains the closed state and presses the line number pipe after the second movable cover is opened. Once the printer fails, the technician can check the fault point position in the working state of the printer, and determine the specific position of the fault in time, thereby improving the maintenance efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0034] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of the drawings shown.

[0035] Figure 1 The structure diagram of the printer provided by the embodiment of the present application is shown in the figure.

[0036] Figure 2 The structure diagram of the printer provided by the embodiment of the present application is shown in the figure.

[0037] Figure 3 The partial structure diagram of the first movable cover provided by the embodiment of the present application is shown in the figure.

[0038] Figure 4 The structure diagram of the printer provided by the embodiment of the present application is shown in the figure.

[0039] Figure 5 The structure diagram of the driving arm, the transmission member, the first elastic member and the linkage arm provided by the embodiment of the present application is shown in the figure.

[0040] Figure 6 The structure diagram of the printer provided by the embodiment of the present application is shown in the figure.

[0041] Figure 7 The structure diagram of the printer provided by the embodiment of the present application is shown in the figure. Figure 6 The enlarged view of A in the figure.

[0042] Explanation of reference numerals:

[0043] 1, host; 11, base; 12, conveying roller; 13, carbon tape box; 100, bearing part; 200, mounting cavity; 2, cover assembly; 21, first movable cover; 22, second movable cover; 23, transmission member; 24, first elastic member; 25, second elastic member; 211, first cover body; 212, linkage arm; 213, limiting part; 214, locking structure; 2141, lock catch; 2142, catch groove; 221, second cover body; 222, driving arm; 223, gland assembly; 231, connecting part; 232, abutment part; 3, to-be-printed piece.

[0044] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0045] To make the purpose, technical solutions and advantages of the present application more clear, the following will further describe the embodiments of the present application in connection with the drawings.

[0046] The following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all the embodiments consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0047] In the description of the present application, it is understood that the terms "first", "second" and the like are used only for the purpose of description and can not be understood as indicating or implying relative importance. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. In addition, in the description of the present application, unless otherwise specified, "multiple" means two or more. "And / or", the association between the associated objects, means that there can be three relationships, for example, A and / or B, which can represent the existence of A, the existence of A and B, and the existence of B. The character " / " generally represents the relationship between the front and rear associated objects is "or".

[0048] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terms used in the specification of the present application are only for the purpose of describing the specific embodiments and are not intended to limit the present application. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0049] The same or similar reference numerals in the drawings of the embodiments correspond to the same or similar components; in the description of the present application, it is understood that if the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right" and the like are based on the orientations or positional relationships shown in the drawings, they are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the terms describing the positional relationships in the drawings are only used for exemplary illustration, and cannot be understood as a limitation of the present application, for those skilled in the art, the specific meanings of the above terms can be understood according to the specific circumstances.

[0050] The embodiment of the present application provides a printer, which can check the fault point position in the working state, so that the technician can determine the specific position of the fault in time, thereby improving the maintenance efficiency.

[0051] Specifically, refer to Figure 1 and Figure 2 , Figure 1 The structural schematic diagram of the printer provided by the embodiment of the present application is provided with a to-be-printed piece 3; Figure 2 The structural schematic diagram of the printer provided by the embodiment of the present application is provided with a to-be-printed piece 3;

[0052] The printer of the embodiment can be applied to various types, such as a line number tube printer, a label printer, a barcode printer and the like. Correspondingly, the to-be-printed piece 3 can be a line number tube, various labels, barcode paper and the like in various forms. Among them, the line number tube printer is a printer used for printing marks such as numbers, letters, symbols and the like on the line number tube to mark the cable. In the following, the printer of the embodiment will be described as a line number tube printer, and the to-be-printed piece 3 will be described as a line number tube.

[0053] The printer of the embodiment is composed of a main body 1 and a cover assembly 2. The main body 1 is the core bearing part 100 of the whole printer, which can include a base 11 and a printing assembly and a pipe feeding assembly mounted on the base 11. Exemplarily, the base 11 is the basic support structure of the whole main body 1, and an installation cavity 200 is arranged in the base 11 to provide a stable installation space for the printing assembly and the pipe feeding assembly. The printing assembly includes a print head and a carbon tape box 13. The print head is the core component for realizing the printing of the identification information of the wire number pipe, and can accurately print characters, numbers or symbols on the surface of the wire number pipe according to the preset instructions. The carbon tape box 13 is mounted in the installation cavity 200 of the base 11 and is used to provide the carbon tape medium required for printing. The pipe feeding assembly includes a conveying roller 12, which is also mounted in the installation cavity 200 of the base 11 and is used to convey the wire number pipe. The base 11 also has a bearing part 100 for bearing the to-be-printed object 3 (wire number pipe). For example, the bearing part 100 of the embodiment is a wire running groove formed on the base 11. The wire number pipe is arranged in the wire running groove on the base 11 and passes through the conveying roller 12. The conveying roller 12 gradually conveys the wire number pipe to the corresponding position of the print head through the rotating movement, so as to ensure the smooth performance of the printing operation.

[0054] The cover assembly 2 of the embodiment includes a first movable cover 21 and a second movable cover 22. The first movable cover 21 and the second movable cover 22 are movably connected with the base 11. The movable connection mode can adopt a hinge, a sliding rail or the like, so as to ensure that the first movable cover 21 and the second movable cover 22 can be flexibly opened and closed, and the installation and disassembly of the wire number pipe are facilitated.

[0055] The first movable cover 21 is used to press the to-be-printed object 3. Exemplarily, the side of the first movable cover 21 in contact with the to-be-printed object 3 is provided with a pressing structure, such as an elastic rubber pad or a pressing block, so as to provide a suitable pressing force according to the type and material of the to-be-printed object 3. When the second movable cover 22 is opened for troubleshooting, the pressing structure of the first movable cover 21 still stably presses the wire number pipe, so that the position of the wire number pipe is basically consistent with that in the normal printing, which greatly facilitates the technicians. They can directly observe the relative position relationship between the wire number pipe and the print head, check whether there is a jam of the wire number pipe, whether the print head is abnormally worn or damaged, and the like, without worrying that the opening of the cover body will cause the position of the wire number pipe to change and interfere with the fault judgment.

[0056] The second movable cover 22 is shaped and sized to fit the space above the bearing portion 100 of the main machine 1. In normal printing, the second movable cover 22 can tightly cover the bearing portion 100 to create a closed and stable environment for printing operation, reducing the interference of external factors such as dust, air flow, etc. on the printing process, and ensuring the accuracy of printing. 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 linkage or position change of the first movable cover 21. In this way, after opening the second movable cover 22, the technician can directly check part of the internal components of the printer (such as the to-be-printed piece 3 and part of the structure of the print head located below the second movable cover 22). At the same time, since the first movable cover 21 still maintains the closed state and presses the line number tube, the technician can observe the operation of the entire printing system and quickly locate the fault point. For example, when there is a problem with the printing quality, the technician can directly observe the relative position and contact between the print head and the to-be-printed piece 3, quickly determine whether it is a precision problem of the print head, whether there is foreign matter interfering with the printing process, or whether the feeding tube assembly causes abnormal feeding of the to-be-printed piece 3, etc.

[0057] As can be seen, in the present embodiment, since the first movable cover 21 can still maintain the closed state and press the to-be-printed piece 3 after the second movable cover 22 is opened, the technician can perform the check in a state close to the normal working state of the printer during troubleshooting, making the judgment of the fault point more accurate and rapid, greatly shortening the troubleshooting time and improving the maintenance efficiency.

[0058] Further, the printer further comprises a locking structure 214 for locking the first movable cover 21 on the main machine 1 when the first movable cover 21 is closed.

[0059] The locking structure 214 can adopt various forms. In one embodiment, the locking structure 214 is an electromagnetic locking structure. The locking structure 214 comprises electromagnetic induction elements arranged on the first movable cover 21 and the main machine 1 at the same time. When the first movable cover 21 is closed in place, the electromagnetic induction elements are energized to generate a magnetic force to tightly attract the first movable cover 21 on the main machine 1. The above-mentioned electromagnetic locking method has the advantages of fast response, firm locking and easy control, and can be automatically operated through the control system of the printer.

[0060] In another embodiment, please refer to Figure 1 and Figure 3 , Figure 3A part structure diagram of the first movable cover 21 is provided in the embodiments of the present application. The locking structure 214 is in the form of a mechanical clasp 2141. The locking structure 214 comprises a clasp 2141 and a clasp groove 2142 that cooperate with each other. One of the main machine 1 and the first movable cover 21 is provided with the clasp 2141, and the other is provided with the clasp groove 2142. Exemplarily, the clasp 2141 is arranged at the edge of the first movable cover 21, and the clasp groove 2142 is arranged at the position corresponding to the clasp 2141 of the main machine 1. The clasp 2141 has a certain strength and elasticity, and its shape is adapted to the clasp groove 2142, so that it can be accurately inserted into the clasp groove 2142 when the first movable cover 21 is closed, thereby achieving stable locking. For example, the clasp 2141 can be made of metal material and has a certain bending elasticity. During the closing process, when the clasp 2141 contacts the edge of the clasp groove 2142, it can be bent and deformed to a certain extent, smoothly slide into the clasp groove 2142, and then restore to the original state, tightly engage with the clasp groove 2142. The clasp groove 2142 is formed in the inner wall of the mounting cavity 200, and the depth and width of the clasp groove 2142 are matched with the size of the clasp 2141, so as to ensure that the clasp 2141 cannot be easily taken out after being inserted.

[0061] The clasp groove 2142 has an avoidance gap between the conveying roller 12 and the carbon ribbon cartridge 13, and the clasp groove 2142 has an avoidance gap between the conveying roller 12 and the carbon ribbon cartridge 13. The avoidance gap is not less than 1.5 cm and not more than 5 cm. If the avoidance gap is less than 1.5 cm, when the operator needs to unlock the locking structure 214, it is difficult for the hand to smoothly enter the mounting cavity 200 to operate the clasp 2141. For example, when the operator's finger tries to extend into the position of the clasp groove 2142 to unlock, due to the too small space, the finger may not be able to accurately touch the clasp 2141, or it is easy to touch the conveying roller 12 or the carbon ribbon cartridge 13 during the operation, which not only affects the smooth progress of the unlocking operation, but also may cause the conveying roller 12 or the carbon ribbon cartridge 13 to be displaced or damaged, affecting the normal operation of the printer. When the avoidance gap is greater than 5 cm, although the operation space of the operator is relatively spacious, the internal structure of the main machine 1 becomes less compact, increasing the overall volume and weight of the printer.

[0062] In the embodiments, due to the reasonable layout of the clasp 2141 and the clasp groove 2142, the operator can conveniently perform the locking and unlocking operations when using the printer. When installing the to-be-printed piece 3, the first movable cover 21 only needs to be easily opened, the to-be-printed piece 3 is placed on the bearing part 100, and then the first movable cover 21 is closed, so that the clasp 2141 can be automatically locked with the clasp groove 2142, which is simple and fast. When the to-be-printed piece 3 needs to be replaced or the equipment needs to be maintained, the hand of the operator can smoothly extend into the mounting cavity 200 to unlock, without worrying about touching other components, thereby improving the convenience and efficiency of the operation.

[0063] Further, when the lock catch 2141 is buckled in the buckle slot 2142, the lock catch 2141 partially protrudes from the slot of the buckle slot 2142. The design that the lock catch 2141 partially protrudes from the slot of the buckle slot 2142 can facilitate the operator to directly contact the lock catch 2141 with hand for unlocking operation. For example, the protruding part of the lock catch 2141 can be designed as an arc or convex shape which is convenient for finger to grasp, and the surface has a certain roughness to increase the friction between the finger and the lock catch 2141. In this way, the operator only needs to lightly press the protruding part of the lock catch 2141 with the finger, and apply appropriate force to make the lock catch 2141 out of the buckle slot 2142, which greatly simplifies the unlocking process and improves the convenience and efficiency of operation.

[0064] The length of the part of the lock catch 2141 protruding from the buckle slot 2142 is less than the avoidance gap. In this way, the interference problem of the lock catch 2141 with the internal components such as the transfer roller 12 and the ribbon cartridge 13 is solved. Since the protruding length of the lock catch 2141 is within the avoidance gap, during the buckling and unlocking process of the lock catch 2141, even if the lock catch 2141 has a certain displacement due to the force applied by the finger, it will not contact and collide with the transfer roller 12 or the ribbon cartridge 13. For example, when the operator performs the unlocking operation, even if the finger applies a certain force to the lock catch 2141 and makes the lock catch 2141 have a certain displacement, since the protruding length is limited, it will not enter the running space of the transfer roller 12 or the ribbon cartridge 13, thereby avoiding the interference with these components, ensuring the normal operation of the internal components of the printer, and improving the reliability and stability of the equipment. At the same time, it is also helpful to protect the lock catch 2141 and the internal components, reduce the wear and damage caused by collision, and prolong the service life of the components.

[0065] Please refer to Figure 4 and Figure 5 , Figure 4 the structure schematic view of the printer provided by the embodiment of the present application after hiding part of the structure of the host 1; Figure 5 the structure schematic view of the driving arm 222, the transmission member 23, the first elastic member 24 and the linkage arm 212 provided by the embodiment of the present application.

[0066] In some embodiments, the first movable cover 21 and the second movable cover 22 are both rotationally connected with the base 11, and the rotational connection can be achieved by a hinge structure or a rotating shaft. The first movable cover 21 can be located between the second movable cover 22 and the base 11, and the first movable cover 21 directly contacts and presses the cable tube when the cover assembly 2 is closed, so that the pressing relationship between the first movable cover 21 and the cable tube is more direct, and the cable tube can be more stably fixed. In addition, the first movable cover 21 can also be embedded on the second movable cover 22, for example, the second movable cover 22 has an inner recessed mounting groove, and the first movable cover 21 can be mounted in the mounting groove to realize embedding on 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 hidden inside the second movable cover 22 in the initial state, and from the appearance, the entire cover assembly 2 presents a relatively simple overall structure.

[0067] In the embodiment, during the process of the second movable cover 22 rotating from the open cover state to the closed cover 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 closed cover state. For example, the second movable cover 22 is in transmission connection with the first movable cover 21 to drive the first movable cover 21 to close when the second movable cover 22 closes. In one embodiment, the second movable cover 22 and the first movable cover 21 are in transmission through a gear set, and the second movable cover 22 and the first movable cover 21 are respectively provided with gears that mesh with each other at specific positions. When the second movable cover 22 rotates to close, the first movable cover 21 is driven to close by the gear set. This transmission mode utilizes the mechanical characteristics of gear transmission to stably realize 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 in transmission through a chain, and the second movable cover 22 and the first movable cover 21 are respectively provided with a chain and a sprocket that cooperate with each other at specific positions. The chain is looped around the two sprockets to form a closed transmission chain. When the second movable cover 22 rotates to close, 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, so that the first movable cover 21 realizes the closing action.

[0068] As shown in FIG. 1, Figure 4 The cover assembly 2 of the embodiment further includes a transmission member 23 and a first elastic member 24, and the transmission member 23 is a key component for the linkage between the second movable cover 22 and the first movable cover 21.

[0069] Specifically, the first movable cover 21 includes a first cover body 211 and a linkage arm 212, and the linkage arm 212 is connected with the first cover body 211, which can be integrally formed with the first cover body 211. The linkage arm 212 is rotationally connected with the base 11, and the rotational connection can be achieved by a rotating shaft penetrating the linkage arm 212 and the base 11, or by a hinge structure connected with the base 11.

[0070] The second movable cover 22 includes a second cover body and a drive arm 222 connected together. When the second cover body is in the closed state, it covers the support part 100 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 on the printing process. The drive arm 222 is rotatably connected to the base 11. The rotatable connection can be achieved by passing through both the linkage arm 212 and the base 11 via a pivot, or by connecting the linkage arm 212 to the base 11 via a hinge structure.

[0071] The transmission component 23 is rotatably connected to the base 11. One end of the transmission component 23 is used to abut against the drive arm 222, and the other end is connected to the linkage arm 212 through the first elastic element 24, so that the second movable cover 22 is linked with the first movable cover 21. Specifically, as shown... Figure 5 As shown, 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 a first elastic member 24. The abutting portion 232 is connected to the connecting portion 231 at an angle and is used 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 11. 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.

[0072] When the second movable cover 22 rotates in the closing direction (counterclockwise in the diagram), 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 diagram). 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 24. 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 11. The first elastic member 24 includes either a tension spring or an elastic rubber component. 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 a stretched state.

[0073] The linkage structure between the second movable cover 22 and the first movable cover 21 in this embodiment greatly simplifies the steps of closing the cover for printing. Simply close the second movable cover 22 and the first movable cover 21 will automatically close. There is no need to manually close the first movable cover 21, which reduces the number of operation steps and improves work efficiency.

[0074] like Figure 1As shown, in order to further improve the pressing effect on the cable marker, the second movable cover 22 of the embodiment further comprises a pressing cap assembly 2232. Specifically, the pressing cap assembly 2232 is connected to the side of the second cover body 221 facing the first movable cover 21. When the second movable cover 22 is fully closed, the pressing cap assembly 2232 will exert additional pressure on the first movable cover 21, so that the pressing assembly on the first movable cover 21 presses the cable marker more tightly.

[0075] Further, the pressing cap assembly 2232 comprises at least one pressing roller for pressing the first movable cover 21. The material of the pressing roller has good wear resistance and appropriate hardness, such as rubber or plastic material, so that the pressing roller slightly deforms when it contacts the first movable cover 21. In this way, the pressure exerted by the pressing roller on the first movable cover 21 is more uniform. When two pressing rollers are provided, the two pressing rollers are arranged in a spaced manner. The spaced arrangement can make the first movable cover 21 more uniformly stressed when it is subjected to pressure, avoiding the problems of deformation of the first movable cover 21 or insecure fixing of the cable marker caused by excessive or insufficient local pressure.

[0076] Please refer to Figure 6 and Figure 7 , Figure 6 another structural schematic view of the printer carrying the to-be-printed piece 3 provided by the embodiment of the present application; Figure 7 is Figure 6 an enlarged view of A in FIG. 8.

[0077] In some embodiments, the cover assembly 2 of the embodiment further comprises a second elastic member 25, which plays a key auxiliary role in the opening process of the first movable cover 21 to make the opening of the first movable cover 21 more smooth. The second elastic member 25 comprises one of a torsion spring and an elastic rubber member.

[0078] Specifically, the second elastic member 25 is a torsion spring, which can store and release elastic potential energy during torsional deformation. One end of the second elastic member 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 member 25 is connected to the base 11, and the base 11 is provided with a recess or a protruding structure at a corresponding position, and the end of the second elastic member 25 can stably abut thereon. When the first movable cover 21 is in the closed state, due to the closing action of the second movable cover 22 and the action of the transmission member 23 on the linkage arm 212, the second elastic member 25 will be twisted by a certain angle and store elastic potential energy.

[0079] The first movable cover 21 of the embodiment further comprises a limiting portion 213 located on one side of the linkage arm 212. The limiting portion 213 plays a multi-faceted role in the structure of the first movable cover 21. On the one hand, the limiting portion 213 limits the second elastic member 25 (torsion spring) by virtue of its positional relationship with the linkage arm 212. A specific space is formed between the limiting portion 213 and the linkage arm 212, and the second elastic member 25 is placed in this space. The limiting portion 213 can prevent the second elastic member 25 from being displaced laterally or deviating from its normal working position during operation. For example, the linkage arm 212 is connected to the base 11 by a rotating shaft. In the axial direction of the rotating shaft, the limiting portion 213 is arranged apart from the linkage arm 212. The second elastic member 25 is arranged on the rotating shaft between the limiting portion 213 and the linkage arm 212. The rotating shaft limits the radial movement of the second elastic member 25, and the spacing between the limiting portion 213 and the linkage arm 212 controls the axial position of the second elastic member 25, ensuring that the second elastic member 25 always maintains a normal working position during torsion. On the other hand, the above-mentioned limiting structure simplifies the overall structural design of the first movable cover 21. The embodiment does not require additional complex elastic member fixing devices, reducing the number of parts and assembly difficulty of the first movable cover 21.

[0080] When the first movable cover 21 is unlocked and opened, the cover opening action of the first movable cover 21 is smoother with the assistance of the second elastic member 25 (torsion spring). The second elastic member 25 has stored elastic potential energy when the first movable cover 21 is closed. At this time, the second elastic member 25 releases this part of energy, generates an auxiliary torque, and drives the first movable cover 21 to rotate in the opening direction, so that the first movable cover 21 can be quickly and smoothly opened.

[0081] Further, the base 11 also has a limiting column for providing a stable support point for the second elastic member 25 and limiting its movement range in space. The limiting column can be located near the rotating area of the linkage arm 212 close to the first movable cover 21, and its shape can be cylindrical, square or other geometric shapes. The connection between the limiting column and the base 11 can be achieved by welding, one-piece molding or high-strength bolt connection, etc., to ensure that it will not loosen or deform during long-term operation of the printer.

[0082] One end of the second elastic member 25 abuts against the linkage arm 212, and the other end is connected to the limiting column. When the first movable cover 21 is closed, the second elastic member 25 is twisted and compressed, and its stored elastic potential energy gradually increases. When the first movable cover 21 is opened, the second elastic member 25 returns to its original length, and the elastic potential energy also changes accordingly. Due to the presence of the limiting column, the second elastic member 25 always maintains a predetermined position during the entire process and does not displace laterally or in other directions, so that the first movable cover 21 can be smoothly opened or closed, and the phenomenon of jamming or shaking caused by displacement of the second elastic member 25 does not occur.

[0083] The above merely provides the preferred embodiments of the present application, and is not used to limit the present application. Any modification, equivalent replacement, and improvement made in the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A printer characterized by comprising: The application relates to a printer cover assembly. The printer cover assembly comprises: a main body for carrying a print object; a first movable cover movably connected to the main body and used for pressing the print object; and a second movable cover movably connected to the main body and used for covering the carrying part in a closed state to perform a printing operation. The first movable cover is in the closed state and presses the print object when the second movable cover is opened. The printer cover assembly further comprises a locking structure for locking the first movable cover on the main body when the first movable cover is closed.

2. The printer of claim 1, wherein, The locking structure comprises a lock and a slot matched with each other, one of the main body and the first movable cover is provided with the lock and the other is provided with the slot.

3. The printer of claim 2, wherein, The main body comprises a base, a conveying roller for conveying the print object and a ribbon cartridge for providing a printing medium, the base is provided with a mounting cavity for mounting the conveying roller and the ribbon cartridge.

4. The printer of claim 3, wherein, The slot is formed on the inner wall of the mounting cavity, and the slot is provided with a clearance gap between the conveying roller and the slot and between the slot and the ribbon cartridge. The clearance gap is not less than 1.5 cm and not more than 5 cm.

5. The printer of claim 4, wherein, When the lock is engaged with the slot, the lock partially protrudes from the slot.

6. The printer of claim 4, wherein, The length of the part of the lock protruding from the slot is less than the clearance gap.

7. The printer of claim 6, wherein, The first movable cover and the second movable cover are rotatably connected to the main body, and the first movable cover is located between the second movable cover and the main body.

8. The printer according to any one of claims 1 to 7, characterized in that, During the rotation of the second movable cover from the opened state to the closed state, the second movable cover is linked with the first movable cover to drive the first movable cover to rotate to the closed state. The printer cover assembly further comprises a transmission member rotatably connected to the main body, and the second movable cover is linked with the first movable cover through the transmission member.

9. The printer of claim 8, wherein, The printer cover assembly further comprises a first elastic member, the second movable cover comprises a driving arm rotatably connected to the main body, the first movable cover comprises a linkage arm rotatably connected to the main body, one end of the transmission member is used for abutting against the driving arm, and the other end of the transmission member is connected to the linkage arm through the first elastic member.

10. The printer of claim 9, wherein, The rotation directions of the first movable cover and the second movable cover both comprise an opening direction and a closing direction opposite to each other, when the second movable cover rotates in the closing direction, the driving arm abuts against the transmission member and drives the transmission member to rotate in the opening direction, and when the transmission member rotates in the opening direction, the linkage arm is driven to rotate in the closing direction through the first elastic member, so that the first movable cover is closed on the main body. The transmission member comprises:

11. The printer of claim 10, wherein, a connecting part connected to the linkage arm; and an abutting part connected to the connecting part at an angle and used for abutting against the driving arm, and the connection between the abutting part and the connecting part is rotatably connected to the main body. The first elastic member comprises one of a tension spring and an elastic rubber member. ​ 12. The printer of claim 8, wherein, The second movable cover comprises a second cover body and a gland assembly, the second cover body is rotationally connected with the main machine, and the gland assembly is connected to one side of the second cover body facing the first movable cover.

13. The printer of claim 10, wherein, The cover assembly further comprises a second elastic member, one end of the second elastic member is connected with the first movable cover, the other end is connected with the main machine, and the second elastic member stores elastic potential energy when the first movable cover is in the closed state.

14. The printer of claim 13, wherein, The first movable cover further comprises a limiting portion located on one side of the linkage arm, the second elastic member is located between the limiting portion and the linkage arm, one end of the second elastic member abuts against the linkage arm, and the other end is connected with the base.

15. The printer of claim 14, wherein, The main machine further has a limiting column, one end of the second elastic member abuts against the linkage arm, and the other end is connected with the limiting column. And / or, the second elastic member is a torsion spring or an elastic rubber member.

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