Printer and its voltage regulating structure

Abstract

A printer and its pressure regulating structure, the printer includes a frame, a paper feeding mechanism, a ribbon mechanism and a printing mechanism. The paper feeding mechanism, the ribbon mechanism and the printing mechanism are all fixed on the frame, and the ribbon mechanism is located above the printing mechanism, and the paper feeding mechanism is located on one side of the printing mechanism. Among them, the printing mechanism includes a print head and a pressure regulating structure. The pressure regulating structure includes a housing assembly, a first elastic member and at least two core barrel assemblies with pressure regulating keys. At least two of the core barrel assemblies are arranged side by side in the housing assembly along the horizontal direction of the pressure regulating structure. One end of the first elastic member abuts against the core barrel assembly, and the other end of the first elastic member abuts against the housing assembly. At least two of the pressure regulating keys are located outside the housing assembly after passing through the housing assembly.

Description

Technical Field

[0001] The present invention relates to the technical field of printers, and particularly to a printer and its pressure regulating structure. Background Art

[0002] A barcode printer, also known as a label printer or tag printer, is a professional printing device that uses self-adhesive labels, PET labels, hangtags, washable fabrics, etc. as printing media and can print barcodes, text, symbols, and pictures in large quantities and quickly.

[0003] Currently, the print head of a barcode printer is usually pressed by springs at two points. This not only cannot completely avoid the balance problem of the print head, but also requires adjusting the pressure of the print head by replacing or adding / subtracting springs, which is troublesome and complex to operate, with low efficiency. Even professional personnel are needed to disassemble and replace in combination with the structure of the barcode printer. Summary of the Invention

[0004] The present invention provides a printer and its pressure regulating structure, which can adjust the pressing force of the printer by at least two core cylinder components. It can not only press the print head at a single point, but also press the print head at multiple points simultaneously, facilitating operation, with high practicality, reducing a lot of unnecessary troubles, and not requiring professional personnel to complete the pressure adjustment of the print head.

[0005] According to a first aspect of the present invention, there is provided a printer, including a frame, a paper feeding mechanism, a carbon ribbon mechanism, and a printing mechanism. The paper feeding mechanism, the carbon ribbon mechanism, and the printing mechanism are all fixed on the frame, and the carbon ribbon mechanism is located above the printing mechanism, and the paper feeding mechanism is located on one side of the printing mechanism.

[0006] Wherein, the printing mechanism includes a print head and a pressure regulating structure. The pressure regulating structure includes a housing assembly, a first elastic member, and at least two core cylinder components having pressure regulating keys. At least two of the core cylinder components are arranged in parallel along the horizontal direction of the pressure regulating structure in the housing assembly. One end of the first elastic member abuts against the core cylinder component, and the other end of the first elastic member abuts against the housing assembly. At least two of the pressure regulating keys pass through the housing assembly and are located outside the housing assembly for contacting or separating from the print head.

[0007] In the printer according to an embodiment of the present invention, the core cylinder component includes a core cylinder connected to the housing assembly and a plug having a threaded structure. One end of the core cylinder is provided with a threaded hole, and the other end of the core cylinder forms a shaft hole communicating with the threaded hole. The plug is inserted into the shaft hole, and the threaded structure is threadedly connected to the threaded hole. The pressure regulating key is connected to the end of the plug extending out of the core cylinder for adjusting the length of the plug extending out of the core cylinder.

[0008] In the printer according to an embodiment of the present invention, the core cylinder assembly further includes a cylinder cover and a second elastic member. One of the core cylinder and the cylinder cover is provided with a snap protrusion, and the other of the core cylinder and the cylinder cover is provided with a slot through hole. The cylinder cover is movably connected to the core cylinder through the cooperation of the snap protrusion and the slot through hole, and the second elastic member abuts between the cylinder cover and the plug pin.

[0009] In the printer according to an embodiment of the present invention, the core cylinder includes a core cylinder body and a riveting member having the threaded hole. A preset hole is provided on the core cylinder body, and the riveting member is fixed in the preset hole.

[0010] In the printer according to an embodiment of the present invention, a connecting pin is connected to one end of the plug pin extending out of the core cylinder. The pressure regulating key has a connecting hole, and a plurality of limiting ribs are formed in the connecting hole. When the plug pin is connected to the pressure regulating key, the plurality of limiting ribs are formed on both sides of the connecting pin.

[0011] In the printer according to an embodiment of the present invention, a plurality of side ear structures are provided on the outer side of the core cylinder. At least part of the side ear structures abut against the first elastic member, and at least part of the side ear structures are clamped with the snap structure of the housing assembly.

[0012] In the printer according to an embodiment of the present invention, the housing assembly includes a cover component, a side cover component, a connecting cylinder, and a fixing frame connected to the frame. The cover component and the side cover component are fixed on both sides of the connecting cylinder. The fixing frame covers the upper ends of the cover component and the side cover component. At least two core cylinder assemblies are sequentially installed in the connecting cylinder, and the pressure regulating key is movably installed on the fixing frame and at least part of the structure passes through the fixing frame.

[0013] In the printer according to an embodiment of the present invention, the cover component includes a cover, a snap structure, and a third elastic member. A plurality of accommodating grooves are provided on the connecting cylinder, and guiding grooves are provided on one side or both sides of each accommodating groove. The snap structure is rotatably installed on the cover, and the third elastic member always maintains an elastic force in the direction of the connecting cylinder to drive the snap structure to rotate towards the guiding groove for clamping with at least part of the side ear structures.

[0014] In the printer according to an embodiment of the present invention, the side cover component includes a lamp cover, a control board having an indicator light, and a light-transmitting cover made of a software material. The control board is installed on one side of the lamp cover facing the connecting cylinder. The lamp cover is connected to the cover to form an installation cavity for accommodating the connecting cylinder. The light-transmitting cover is installed on the lamp cover and is located outside the indicator light for displaying the working state of the core cylinder assembly.

[0015] According to a second aspect of the present invention, the present invention further provides a pressure regulating structure for use in a printer. The pressure regulating structure includes a housing assembly, a first elastic member, and at least two core barrel assemblies each having a pressure regulating key. The at least two core barrel assemblies are arranged side by side in the housing assembly along the horizontal direction of the pressure regulating structure. One end of the first elastic member abuts against the core barrel assembly, and the other end of the first elastic member abuts against the housing assembly. The at least two pressure regulating keys are located outside the housing assembly after passing through the housing assembly and are used to adjust the pressure of the print head of the printer.

[0016] The technical solutions provided in the embodiments of the present application may include the following beneficial effects: The present application designs a printer, which includes a frame, a paper feeding mechanism, a ribbon mechanism, and a printing mechanism. The paper feeding mechanism, the ribbon mechanism, and the printing mechanism are all fixed on the frame. Among them, the printing mechanism includes a print head and a pressure regulating structure. The pressure regulating structure includes a housing assembly, a first elastic member, and at least two core barrel assemblies each having a pressure regulating key. The at least two core barrel assemblies are arranged side by side in the housing assembly along the horizontal direction of the pressure regulating structure. One end of the first elastic member abuts against the core barrel assembly, and the other end of the first elastic member abuts against the housing assembly. The at least two pressure regulating keys are located outside the housing assembly after passing through the housing assembly and are used to adjust the pressure of the print head, so as to be able to achieve single-point pressing on the print head, and can also achieve multi-point simultaneous pressing on the print head, which is convenient for operation, has high practicability, reduces a lot of unnecessary troubles, and does not require professional personnel to complete the pressure adjustment of the print head.

[0017] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1 is a partial schematic diagram of a printer provided by an embodiment of the present application;

[0020] Figure 2 is Figure 1 the exploded schematic diagram of the printer in ;

[0021] Figure 3 is Figure 1 the structural schematic diagram of the pressure regulating structure in ;

[0022] Figure 4 is Figure 1 the cross-sectional schematic diagram of the pressure regulating structure in ;

[0023] Figure 5 is Figure 1 a schematic exploded view of the pressure regulating structure in

[0024] Figure 6 is Figure 1 a schematic view of the structure of the fixing bracket in

[0025] Figure 7 is Figure 1 a schematic exploded view of the cover buckling assembly in

[0026] Figure 8 is Figure 1 a schematic exploded view of the side cover assembly in

[0027] Figure 9 is Figure 1 a partial exploded view of the pressure regulating structure in

[0028] Figure 10 is Figure 1 a schematic view of the structure of the connecting cylinder in

[0029] Figure 11 is Figure 1 a schematic cross-sectional view of the core cylinder assembly in

[0030] Figure 12 is Figure 1 a schematic exploded view of the core cylinder assembly in

[0031] Figure 13 is Figure 1 a schematic view of the structure of the core cylinder in

[0032] Figure 14 is Figure 1 a schematic cross-sectional view of the core cylinder in

[0033] Figure 15 is Figure 1 a schematic view of the structure of the pressure regulating key in

[0034] Figure 16 is a partial schematic view of a printer provided by another embodiment of the present application;

[0035] Figure 17 is Figure 16 a partial schematic view of the printer from another angle in

[0036] Figure 18 is Figure 16 a partial exploded view of the printer in

[0037] Figure 19 is Figure 16 a schematic exploded view of the frame in

[0038] Figure 20 is Figure 1 a schematic structural diagram of the label supply part in

[0039] Figure 21 is Figure 1 an exploded schematic diagram of the recycling component in

[0040] Figure 22 is Figure 1 an exploded schematic diagram of the supply component in Specific embodiments

[0041] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0042] It should also be understood that the terms used in the description of the present invention herein are only for the purpose of describing specific embodiments. In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present application. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more, unless otherwise specifically defined.

[0043] Next, some embodiments of the present application will be described in detail in conjunction with the accompanying drawings. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0044] Such as Figures 1 to 22As shown in the figure, the present application provides a printer, which includes a frame 200, a paper feeding mechanism 400, a ribbon mechanism 300, and a printing mechanism 100. The paper feeding mechanism 400, the ribbon mechanism 300, and the printing mechanism 200 are all arranged on the frame 200, and the ribbon mechanism 300 is located above the printing mechanism 100, and the paper feeding mechanism 400 is located on one side of the printing mechanism 200. Among them, the printing mechanism 100 includes a print head and a pressure regulating structure 101. The pressure regulating structure 101 includes a housing assembly 10, a first elastic member 30, and at least two core barrel assemblies 20 having pressure regulating keys 21. The at least two core barrel assemblies 20 are arranged in the housing assembly 10, and the first elastic member 30 is arranged between the core barrel assembly 20 and the housing assembly 10, so that the core barrel assembly 20 always maintains an elastic force in the direction of the print head, so that the pressure regulating key 21 can press the print head in the working state; at the same time, the pressure applied by the pressure regulating structure 101 to the print head in the working state can also be adjusted through the pressure regulating key 21, and the pressure regulating structure 101 can also be separated from the print head in the non-working state, so as to be able to realize single-point pressing on the print head, and can also realize multi-point simultaneous pressing on the print head, which is convenient for operation, has high practicability, reduces a lot of unnecessary troubles, and does not require professionals to complete the pressure adjustment of the print head.

[0045] Exemplarily, the printing mechanism 200 further includes a swing arm structure. Support columns are provided on both sides of the pressure regulating structure 101, and the support columns are connected to the swing arm structure, so that the swing arm structure can drive the entire pressure regulating structure 101 to swing; among them, the pressure regulating structure 101 has a first state and a second state under the drive of the swing arm structure. When the pressure regulating structure 101 is in the first state, the pressure regulating structure 101 can press the print head in the working state; when the pressure regulating structure 101 is in the second state, the pressure regulating structure 101 cannot press the print head, that is, the pressure regulating structure 101 in the present application can adjust the pressure on the print head in the first state. Similarly, when the pressure regulating structure 101 is in the non-working state, the pressure regulating structure 101 will not press the print head either.

[0046] After adopting the above technical solutions, since at least two core barrel assemblies 20 are provided on the pressure regulating structure 101, each core barrel assembly 20 can press the print head in the working state, and the pressure between the core barrel assembly 20 and the print head can be adjusted, which not only improves the problem of limited position of the existing double-point pressing structure, but also can provide adaptive adjustment of single-point or multi-point selectable positions in various situations; at the same time, the pressing force of each core barrel assembly 20 at each point can be adjusted, avoiding affecting the life of the print head due to long-term repeated disassembly and replacement of springs.

[0047] In an alternative embodiment, the cartridge assemblies 20 are arranged side by side along the horizontal direction of the pressure regulating structure 101, such that the directions of the cartridge assemblies 20 installed within the housing assembly 10 are the same, facilitating the disassembly and assembly of the cartridge assemblies 20. Meanwhile, generally, the horizontal direction of the housing assembly 10 is relatively wide. By arranging the cartridge assemblies 20 side by side along the horizontal direction, the width of the cartridge assemblies 20 can be ensured, thereby accommodating larger-sized cartridge assemblies 20 and reducing the height of the housing assembly 10. Moreover, compared with arranging at least two cartridge assemblies 20 side by side in other directions of the housing assembly 10, reasonable design of the installation space within the housing assembly 10 and the orientation of the cartridge assemblies 20 is required. In this application, by arranging at least two cartridge assemblies 20 side by side along the horizontal direction, the cartridge assemblies 20 can be directly arranged in the installation space penetrating the upper and lower ends of the housing assembly 10, with a simple and practical structure.

[0048] In an alternative embodiment, one end of the first elastic member 30 abuts against the cartridge assembly 20, and the other end of the first elastic member 30 abuts against the housing assembly 10, for providing an elastic force towards the print head direction to the cartridge assembly 20, such that the pressure regulating key 21 of the cartridge assembly 20 can press against the print head during the working state.

[0049] In an alternative embodiment, the number of the pressure regulating keys 21 is adapted to the number of the cartridge assemblies 20. One pressure regulating key 21 is correspondingly connected to each cartridge assembly 20. At least two pressure regulating keys 21 are located outside the housing assembly 10 after passing through the housing assembly, for abutting against the print head and capable of being adjusted to change the pressure abutting against the print head, such that the pressure regulating key 21 contacts or separates from the print head, thereby enabling single-point pressing against the print head or multi-point simultaneous pressing against the print head, and further being used to adjust the working stability of the print head.

[0050] In an alternative embodiment, the cartridge assembly 20 includes a cartridge 22 connected to the housing assembly 10 and a plug 23 having a threaded structure; wherein, one end of the cartridge 22 is provided with a threaded hole, and the other end of the cartridge 22 is formed with a shaft hole 2211 communicating with the threaded hole. The plug 23 is inserted into the shaft hole 2211, and the threaded structure is threadedly connected to the threaded hole. The pressure regulating key 21 is connected to the end of the plug 23 extending out of the cartridge 22, for adjusting the length of the plug 23 extending out of the cartridge 22, such that the pressure regulating key 21 contacts or separates from the print head, so as to be able to change the pressure abutting against the print head by adjusting the extending length of the plug 23, and also enabling single-point pressing against the print head or multi-point simultaneous pressing against the print head, and further being used to adjust the working stability of the print head.

[0051] Exemplarily, the pressure regulating structure 101 has a working state and a non - working state. The pressure regulating key 21 can be switched between the working state and the non - working state, and the pressure regulating key 21 can also adjust the pressure applied to the print head when the pressure regulating structure 101 is in the working state to ensure the working stability of the print head. Among them, the threaded hole can be directly opened on the core cylinder 22, or the core cylinder 22 can be opened on other components and then fixed on the core cylinder 22 by means of assembly or integral molding process, which is not limited in this application.

[0052] It should be noted that the pressure regulating structure 101 can also adjust the working stability of the print head through the elastic force of the first elastic member 30, which is not limited in this application.

[0053] In an alternative embodiment, the core cylinder assembly 20 further includes a cylinder cover 24 and a second elastic member 25. One of the core cylinder 22 and the cylinder cover 24 is provided with a snap - buckle protrusion 241, and the other of the core cylinder 22 and the cylinder cover 24 is provided with a slot through - hole 2213, so that the cylinder cover 24 can be movably connected to the core cylinder 22 through the cooperation of the snap - buckle protrusion 241 and the slot through - hole 2213, and the second elastic member 25 abuts between the cylinder cover 24 and the plug 23.

[0054] Exemplarily, the snap - buckle protrusion 241 is arranged on the cylinder cover 24, and the slot through - hole 2213 is opened on the side wall of the core cylinder 22 and communicated with the shaft hole 2211. Among them, one end of the plug 23 is provided with a flat - head structure. The cylinder cover 24 is snap - connected in the slot through - hole 2213 through the snap - buckle protrusion 241. One end of the second elastic member 25 is connected to the flat - head structure, and the other end of the second elastic member 25 abuts against the cylinder cover 24, for applying an elastic force towards the pressure regulating key 21 to the plug 23.

[0055] In an alternative embodiment, the core cylinder 22 includes a core cylinder body 221 and a riveting part 222 with a threaded hole. A pre - formed hole 2212 is provided on the core cylinder body 221, and the riveting part 222 is fixed in the pre - formed hole. Among them, by applying pressure, the serrated teeth of the riveting part 222 are squeezed into the core cylinder body 221, causing plastic deformation around the pre - formed hole, and the deformed material is squeezed in, thereby producing a locking effect on the riveting part 222.

[0056] In an alternative embodiment, one end of the plug 23 extending out of the core cylinder 22 is connected with a connecting pin 231. The pressure regulating key 21 has a connecting hole 213, and a plurality of limiting ribs 214 are formed in the connecting hole 213. When the plug 23 is connected to the pressure regulating key 21, the plurality of limiting ribs 214 are formed on both sides of the connecting pin 231 to limit the rotation of the plug 23 relative to the pressure regulating key 21, so that the pressure regulating key 21 can adjust the connection position of the threaded structure and the threaded hole through the connecting pin 231, thereby adjusting the length of the connecting pin 231 extending out of the core cylinder 22, and further adjusting the length of the pressure regulating key 21 extending out of the housing assembly 10, playing a role in adjusting the pressure.

[0057] In an alternative embodiment, a plurality of side ear structures 2214 are provided on the outer side of the core cylinder 22, and at least a part of the side ear structures 2214 are in contact with the first elastic member 30, so that the first elastic member 30 can provide an elastic force toward the pressure regulating key 21 to the core cylinder 22; at least a part of the side ear structures 2214 are clamped with the buckle structure 112 of the housing assembly 10 to fix the side ear structures 2214 in the housing assembly 10.

[0058] Exemplarily, the side ear structure 2214 includes a first side ear 22141. The side of the first side ear 22141 facing away from the pressure regulating key 21 is an inclined surface structure, and the side of the first side ear 22141 facing the pressure regulating key 21 is a flat surface structure. When the core cylinder 22 is installed into the housing assembly 10, the buckle structure 112 can move along the inclined surface structure and be clamped on the flat surface structure. The structure is simple, which not only facilitates the installation of the core cylinder 22, but also enables the core cylinder 22 to be stably installed into the housing assembly 10 through the buckle structure 112.

[0059] Exemplarily, the side ear structure 2214 further includes a second side ear 22142. The structure of the second side ear 22142 is different from that of the first side ear 22141, which can play an anti-mistake role to avoid the wrong installation of the core cylinder 22. Wherein, both the side of the second side ear 22142 facing the pressure regulating key 21 and the side facing away from the pressure regulating key 21 are flat surface structures, and the first elastic member 30 abuts against this flat surface structure.

[0060] In an alternative embodiment, the number of both the first side ears 22141 and the second side ears 22142 is two. The two first side ears 22141 are arranged on two opposite sides of the core cylinder 22, and the two second side ears 22142 are arranged on the other two opposite sides of the core cylinder 22, and the connection line of the two first side ears 22141 is parallel to the connection line of the two second side ears 22142.

[0061] In an alternative embodiment, the housing assembly 10 includes a buckle cover assembly 11, a side cover assembly 12, a connecting cylinder 14 and a fixing bracket 13 connected to the frame; wherein, the buckle cover assembly 11 and the side cover assembly 12 are fixed on both sides of the connecting cylinder 14, the fixing bracket 13 covers the upper ends of the buckle cover assembly 11 and the side cover assembly 12, and at least two core cylinder assemblies 20 are sequentially installed in the connecting cylinder 14, and the pressure regulating key 21 is movably installed on the fixing bracket 13 and at least a part of the structure passes through the fixing bracket 23.

[0062] Exemplarily, support columns are arranged on both sides of the fixing bracket 13, so that the fixing bracket 13 can be connected to the swing arm structure through the support columns, and the swing arm structure is connected to the frame 200.

[0063] In an alternative embodiment, the voltage regulating key 21 includes a protruding portion 211 and a limiting portion 212. The fixing bracket 13 is provided with a fixing bracket groove 132 and a fixing bracket through hole 131. A fixing bracket rib 133 and a connecting protrusion 134 formed by a recess on one side are formed in the fixing bracket groove 132. The fixing bracket rib 133 is connected between two adjacent fixing bracket through holes 131, and the connecting protrusion 134 is disposed between two adjacent fixing bracket through holes 131 on both sides. The diameter of the protruding portion 211 is adapted to the diameter of the fixing bracket through hole 131, and the diameter of the limiting portion 212 is larger than the diameter of the fixing bracket through hole 131, so that the protruding portion 211 can move in the fixing bracket through hole 131, and the limiting portion 212 is used to limit the length of the protruding portion 211 extending out of the fixing bracket through hole 131.

[0064] In an alternative embodiment, the buckle cover assembly 11 includes a buckle cover 111, a buckle structure 112, and a third elastic member 113. The connecting cylinder 14 is provided with a plurality of receiving grooves 141, and a guiding groove 143 is formed on one side or both sides of each receiving groove 141. The buckle structure 112 is rotatably mounted on the buckle cover 111, and the third elastic member 113 always maintains an elastic force in the direction of the connecting cylinder 14 to drive the buckle structure 112 to rotate towards the guiding groove 143 for engaging with at least a part of the side ear structure 2214.

[0065] Exemplarily, the core cylinder assembly 20 is installed into the receiving groove 141 through the first side ear 22141 along the guiding groove 143. After the core cylinder assembly 20 is completely installed into the receiving groove 141, the buckle structure 112 is engaged with the planar structure of the first side ear 22141, so that the core cylinder assembly 20 can be stably fixed in the receiving groove 141.

[0066] In an alternative embodiment, the number of the buckle structures 112 matches the number of the receiving grooves 141, so that the core cylinder assemblies 20 installed in the receiving grooves 141 can all be engaged by the buckle structures 112.

[0067] In an alternative embodiment, the buckle structure 112 has a buckle rotating shaft 1122 and a buckle reset end 1121. The buckle cover 111 is provided with a buckle shaft hole 1111. The buckle structure 112 is rotatably mounted in the buckle shaft hole 1111 through the buckle rotating shaft 1122. The buckle reset end 1121 is used to implement the reset function of the buckle structure 112, so that the buckle structure 112 is separated from the planar structure of the first side ear 22141, and thus the core cylinder assembly 20 can be taken out from the receiving groove 141.

[0068] In an alternative embodiment, a spring limiting portion 142 is provided in the receiving groove 141 for limiting the position of the first elastic member 30 in the receiving groove 141, so that the first elastic member 30 can provide a stable elastic force for the core cylinder assembly 20.

[0069] In an alternative embodiment, the side cover assembly 12 includes a lamp cover 121, a control board 122 having an indicator lamp 1221, and a light-transmitting cover 123 made of a software material. The control board 122 is mounted on the side of the lamp cover 121 facing the connecting cylinder 14. The lamp cover 121 is connected to the buckle cover 111 to form an installation cavity for accommodating the connecting cylinder 14. The light-transmitting cover 123 is mounted on the lamp cover 121 and located outside the indicator lamp 1221, and is used to display the working state of the core cylinder assembly 20. Wherein, the light-transmitting cover 123 is made of TEP transparent soft rubber, and the indicator lamp 1221 can emit light when the core cylinder assembly 20 is in the working state, indicating that the core cylinder assembly 20 at the current position is in the working state.

[0070] Exemplarily, the number of the indicator lamps 1221 is the same as the number of the core cylinder assemblies 20, and the position of each indicator lamp 1221 corresponds to the position of the accommodating groove 141, and is used to display the working state of the core cylinder assembly 20 in the corresponding accommodating groove 141.

[0071] In an alternative embodiment, the printer further includes a first detection component 500 and a second detection component 600. The carbon ribbon mechanism 300 includes a supply component 302 for supplying the carbon ribbon to be transferred and a recovery component 301 for recovering the transferred carbon ribbon. The paper feeding mechanism 400 includes a label supply member for placing the label paper roll. The supply component 302 and the recovery component 301 are arranged adjacent to each other, and the label supply member is arranged on the side of the supply component 302 facing away from the recovery component 301. Wherein, the first detection component 500 is used to detect the supply state of the label supply member, and the second detection component 600 is used to detect the recovery state of the recovery component 301, so as to be able to give corresponding reminders to the user, enabling the user to more timely understand the usage of the consumables in the printer and the working state of the driving motor, facilitating the user's operation and reducing the labor cost.

[0072] Exemplarily, the first detection component 500 can obtain the remaining amount of the label paper roll placed on the label supply member through the rotation angle of the label supply member; the second detection component 600 can obtain the winding number of the carbon ribbon wound on the recovery component 301 through the rotation angle of the recovery component 301, so as to be able to judge the remaining amount of the carbon ribbon to be transferred on the supply component 302 through the recovery state of the recovery component 301, and be able to give reminders to the user through means such as indicator lamps, buzzers or display screens when the label paper roll and the carbon ribbon to be transferred are insufficient; at the same time, it can also monitor the working state of the driving motor in combination with the speed of the driving motor driving the printer to work, so as to be able to give corresponding reminders to the user, enabling the user to more timely understand the usage of the consumables in the printer and the working state of the driving motor, facilitating the user's operation and reducing the labor cost.

[0073] Specifically, the printer further includes a central processing unit and a warning device. The first detection component 500 and the second detection component 600 are electrically connected to the central processing unit and the warning device. When the first detection component 500 and the second detection component 600 detect that the remaining amount of the label paper roll or the carbon ribbon to be transferred is insufficient, the first detection component 500 and the second detection component 600 transmit the information to the central processing unit, and the central processing unit makes corresponding visual reminders through the warning device, which is convenient for users to operate and reduces labor costs.

[0074] Alternatively, when the first detection component 500 and the second detection component 600 determine that the driving motor is in an abnormal state by combining the speed of the driving motor that drives the printer to work, the information can also be transmitted to the central processing unit, and the central processing unit makes corresponding visual reminders through the warning device, so as to immediately detect whether serious situations such as paper jams occur in the printer, which is convenient for users to operate and reduces labor costs.

[0075] In an alternative embodiment, the warning device includes, but is not limited to, an indicator light, a buzzer, or a display screen, etc.

[0076] In an alternative embodiment, the first detection component 500 includes a first magnet and a first Hall sensor. The first magnet is disposed on the label supply member, and the first Hall sensor is disposed on the frame 200 for sensing the magnetic field change of the first magnet, and further can calculate the rotational speed value of the label supply member. Wherein, each time the label supply member rotates one circle, the first magnet contacts the first Hall sensor once. The change in the magnetic field sensed by the first Hall sensor generates a low level at the output through a pull-up resistor and is sent to the central processing unit. The IO port of the central processing unit detects the falling edge to trigger an interrupt, and by controlling the counting time, the count value can correspond to the rotational speed value of the label supply member.

[0077] In an alternative embodiment, the second detection component 600 includes a second magnet and a second Hall sensor. The second magnet is disposed on the recycling component 301, and the second Hall sensor is disposed on the frame 200 for sensing the magnetic field change of the second magnet. Wherein, each time the recycling component 301 rotates one circle, the second magnet contacts the second Hall sensor once. The change in the magnetic field sensed by the second Hall sensor generates a low level at the output through a pull-up resistor and is sent to the central processing unit. The IO port of the central processing unit detects the falling edge to trigger an interrupt, and by controlling the counting time, the count value can correspond to the rotational speed value of the recycling component 301.

[0078] In an alternative embodiment, the first detection component 500 includes a first code disk grating 502 and a first optocoupler 501. The first code disk grating 502 rotates synchronously with the label supply member, and the first optocoupler 501 is used to detect the rotation angle of the first code disk grating 502.

[0079] Exemplarily, the first optocoupler 501 includes a first light-emitting element and a first light-receiving element. The first code disk grating 502 includes a first disk having a first light-passing slot. The first disk is fixed on the label supply member. The first light-emitting element and the first light-receiving element are arranged on both sides of the first disk. When the label supply member drives the first disk to rotate, the first light-receiving element is periodically illuminated, generating electrical pulses. By counting the pulses within a certain time, the rotation speed of the label supply member can be calculated and sent to the central processing unit. When the IO port of the central processing unit detects the change of high and low levels, by controlling the counting time, the rotation speed value of the counter corresponding to the label supply member can be achieved.

[0080] In an alternative embodiment, the second detection assembly 600 includes a second code disk grating 602 and a second optocoupler 601. The second code disk grating 602 rotates synchronously with the recycling assembly 301. The second optocoupler 601 is used to detect the rotation angle of the second code disk grating 602.

[0081] Exemplarily, the second optocoupler 601 includes a second light-emitting element and a second light-receiving element. The second code disk grating 602 includes a second disk having a second light-passing slot. The second disk is fixed on the recycling assembly 301. The second light-emitting element and the second light-receiving element are arranged on both sides of the second disk. When the recycling assembly 301 drives the second disk to rotate, the second light-receiving element is periodically illuminated, generating electrical pulses. By counting the pulses within a certain time, the rotation speed of the recycling assembly 30 can be calculated and sent to the central processing unit. When the IO port of the central processing unit detects the change of high and low levels, by controlling the counting time, the rotation speed value of the counter corresponding to the recycling assembly 30 can be achieved.

[0082] In an alternative embodiment, the printer further includes a third detection assembly 700. The third detection assembly 700 is installed on the frame 200 and is used to detect the supply state of the supply assembly 302.

[0083] In an alternative embodiment, the third detection assembly 700 includes a third code disk grating 702 and a third optocoupler 701. The third code disk grating 702 rotates synchronously with the supply assembly 302. The third optocoupler 701 is used to detect the rotation angle of the third code disk grating 702.

[0084] Exemplarily, the third optocoupler 701 includes a third light-emitting element and a third light-receiving element. The third code disk grating 702 includes a third disk having third light-passing slots. The third disk is fixed on the supply assembly 302. The third light-emitting element and the third light-receiving element are arranged on both sides of the third disk. When the supply assembly 302 drives the third disk to rotate, the third light-receiving element is periodically illuminated to generate electrical pulses. By counting the pulses within a certain time, the rotation speed of the supply assembly 302 can be calculated and sent to the central processing unit. When the IO port of the central processing unit detects the change of high and low levels, by controlling the counting time, the rotation speed value of the counter corresponding to the supply assembly 302 can be achieved.

[0085] In an alternative embodiment, the label supply member includes a first rotating shaft 402 and a first sleeve 401 provided with a first anti-slip elastic piece 4011. The first sleeve 401 is rotatably mounted on one side of the frame 200 through the first rotating shaft 402, and the first detection assembly 500 is arranged on the other side of the frame 200. Among them, the first anti-slip elastic piece 4011 is used to internally support and fix the label paper roll.

[0086] Exemplarily, the frame 200 includes a base plate 202, a support plate 201, and a first connecting plate 203 in a concave shape. The first rotating shaft 402 is mounted on the first connecting plate 203 through a first bearing seat 204. The support plate 201 is fixed on the base plate 202, and the first connecting plate 203 is vertically mounted on the support plate 201 along the height direction of the support plate 201 to enhance the support strength of the support plate 201. In this embodiment, the frame 200 further includes a second connecting plate 203 and a first bearing member 208 arranged inside the second connecting plate 203. The second connecting plate 203 is fixed on the side of the frame 200 facing away from the first sleeve 401. The first rotating shaft 402 sequentially passes through the first connecting plate 203 and the support plate 201 and then is rotatably connected to the first bearing member 208. The first optocoupler 501 is arranged on the second connecting plate 203, and the first disk is mounted on the end of the first rotating shaft 402 passing through the second connecting plate 203, making the rotation of the first rotating shaft 402 more stable and the detection of the first optocoupler 501 more accurate.

[0087] In an alternative embodiment, the recycling assembly 301 includes a second rotating shaft 3012 and a second sleeve 3011 for winding the transferred carbon ribbon. The second sleeve 3011 is rotatably mounted on one side of the frame 200 through the second rotating shaft 3012, and the second detection assembly 600 is arranged on the other side of the frame 200.

[0088] Exemplarily, the recycling assembly 301 further includes a fixing disk 3016, a connecting kit 3013, and a connecting nut 3014. The second rotating shaft 3012 is fixed to the frame 200 through the fixing disk 3016. The second sleeve 3011 is fixed to the outside of the second rotating shaft 3012 through the connecting nut 3014. The connecting kit 3013 is disposed between the second sleeve 3011 and the connecting nut 3014.

[0089] In an alternative embodiment, the printer further includes a driving motor 800. The driving motor 800 is in transmission connection with the second rotating shaft 3012 and is configured to drive the second rotating shaft 3012 to drive the second sleeve 3011 to rotate about the axis.

[0090] In an alternative embodiment, a driving gear 801 is connected to the driving motor 800. The recycling assembly 301 further includes a driven gear 3015. The driven gear 3015 is installed at one end of the second rotating shaft 3012 passing through the frame 200 and is configured to be in transmission connection with the driving gear 801. In this embodiment, the frame 200 includes a third connecting plate 205. The third connecting plate 205 covers the outside of the driven gear 3015. The second encoder grating 602 is installed at one end of the second rotating shaft 3012 passing through the third connecting plate 205. The second optocoupler 601 is fixed to the third connecting plate 205, making the rotation of the second rotating shaft 3012 more stable and the detection of the second optocoupler 601 more accurate.

[0091] In an alternative embodiment, the driven gear 3015 is provided with a tooth-shaped structure. The tooth-shaped structure 2312 is a deformable damping member, such that the driving gear 801 can be in close fit with the limiting gear through the deformable damping member. The driving gear 801 can also be in local direct close fit with the limiting gear through the deformable damping member. The tension generated by the compression deformation of the deformable damping member acts between the driving gear 801 and the driven gear 3015 and generates contact friction to form damping. Even if the deformable damping member has slight wear, due to its deformability after being compressed, the change in the tension generated after deformation is usually relatively small, so that the damping force value is not easily attenuated, having good stability and being very suitable for occasions with high requirements for installation height.

[0092] In an alternative embodiment, the supply assembly 302 includes a third rotating shaft 3022 and a third sleeve 3021 provided with a third anti-slip spring piece 30211. The third sleeve 3021 is rotatably installed on one side of the frame 200 through the third rotating shaft 3022. The third detection assembly 700 is disposed on the side of the frame 200 facing the third sleeve 3021. The third anti-slip spring piece 30211 is configured to internally support and fix the carbon ribbon to be transferred.

[0093] Exemplarily, a light shield 206 is provided on the frame 200. The light shield 206 has a first notch. The third optocoupler 701 is installed in the first notch. The third encoder grating 702 is fixed on the third rotating shaft 3022 and has an annular portion extending toward the third optocoupler 701. The third light passing groove is provided on the annular portion. The annular portion is rotatably installed in the light shield 206.

[0094] In an alternative embodiment, the supply assembly 302 includes a spring abutting member 3024, a connecting barrel sleeve 3023, and a bolt fastener 3025. The third sleeve 3021 is installed on the third rotating shaft 3022 through the bolt fastener 3025. The spring abutting member 3024 abuts between the third sleeve 3021 and the bolt fastener 3025. The connecting barrel sleeve 3023 covers the outside of the spring abutting member 3024.

[0095] In an alternative embodiment, the printer further includes a fourth detection assembly for obtaining the rotation angle of the driving motor 800.

[0096] In an alternative embodiment, the printer further includes an electrostatic eliminator provided on the second rotating shaft 3012 and the third rotating shaft 3022. Wherein, the inner connection end of the electrostatic eliminator can be grounded to remove the static electricity generated by the movement of the carbon tape on the second rotating shaft 3012 and the third rotating shaft 3022, thereby avoiding wrinkles of the carbon tape and making the carbon tape roll back more smoothly, which is beneficial to improving printing stability.

[0097] In an alternative embodiment, the print head includes a print head bracket, a print head rotating shaft, and a thermal sheet. The print head rotating shaft passes through the print head bracket and is fixed on the frame 200. The print head bracket can rotate around the print head rotating shaft. The thermal sheet is arranged on the lower side of the print head bracket. The thermal sheet is arranged opposite to the rubber roller. The frame 200 is provided with an installation hole penetrating through the upper side of the print head bracket. A stepped portion is provided on the outer periphery of the inner side of the installation hole. The stepped portion includes two symmetrically arranged annular stepped walls. Multiple stepped surfaces are provided on the annular stepped walls. The heights of the multiple stepped surfaces increase sequentially in the circumferential direction. The heights of the multiple stepped surfaces are rotationally symmetrically arranged. A limiting protrusion is provided between adjacent two stepped surfaces. Among them, the voltage regulating structure 101 is arranged on the back sides of both ends of the thermal sheet. The regulating key 21 is provided with an operating portion on the back side of the stepped portion. The operating portion protrudes outside the installation hole. The operating portion extends radially outward of the installation hole and is provided with a protruding portion. An annular gear marking is provided on the outer end surface of the installation hole. The protruding portion is located in the gear marking.

[0098] In the description of the present application, it should be noted that, unless otherwise clearly specified and defined, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0099] In the present application, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "below" and "beneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely means that the horizontal height of the first feature is lower than that of the second feature.

[0100] The above disclosure provides many different embodiments or examples for implementing different structures of the present application. To simplify the disclosure of the present application, the components and settings of specific examples are described above. Of course, they are only examples and are not intended to limit the present application. In addition, the present application may repeat reference numerals and / or reference letters in different examples. Such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present application provides examples of various specific processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and / or the use of other materials.

[0101] In the description of this specification, the descriptions with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiments or examples are included in at least one embodiment or example of the present application. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

Claims

1. A printer, characterized in that: It includes a frame, a paper supply mechanism, a carbon ribbon mechanism and a printing mechanism, wherein the paper supply mechanism, the carbon ribbon mechanism and the printing mechanism are all arranged on the frame, and the carbon ribbon mechanism is located above the printing mechanism, and the paper supply mechanism is located on one side of the printing mechanism; The printing mechanism comprises a print head and a pressure regulating structure, the pressure regulating structure comprises a housing component, a first elastic member and at least two core barrel components with pressure regulating keys, at least two core barrel components are arranged in parallel in the housing component along the horizontal direction of the pressure regulating structure, one end of the first elastic member abuts against the core barrel component, and the other end of the first elastic member abuts against the housing component, and at least two pressure regulating keys are located outside the housing component after passing through the housing component, and are used to contact or separate from the print head; The core barrel assembly comprises a core barrel connected to the shell assembly and a latch having a threaded structure, one end of the core barrel is provided with a threaded hole, the other end of the core barrel is formed with an axial hole connected to the threaded hole, the latch is inserted into the axial hole, the threaded structure is threadedly connected to the threaded hole, and the pressure adjustment key is connected to one end of the latch extending out of the core barrel, so as to adjust the length of the latch extending out of the core barrel; The core barrel assembly further includes a barrel cover and a second elastic member, one of the core barrel and the barrel cover is provided with a buckle protrusion, the other of the core barrel and the barrel cover is provided with a slot through hole, the barrel cover is movably connected to the core barrel through the cooperation of the buckle protrusion and the slot through hole, and the second elastic member abuts between the barrel cover and the latch; The core barrel comprises a core barrel body and a rivet having the threaded hole, the core barrel body is provided with a preset hole, and the rivet is fixed in the preset hole; A plurality of side ear structures are provided on the outer side of the core barrel, at least some of the side ear structures are in contact with the first elastic member, and at least some of the side ear structures are in contact with the buckle structure of the outer shell assembly; The housing assembly comprises a buckle cover assembly, a side cover assembly, a connecting tube and a fixing frame connected to the frame, the buckle cover assembly and the side cover assembly are fixed on both sides of the connecting tube, the fixing frame covers the upper ends of the buckle cover assembly and the side cover assembly, at least two core tube assemblies are sequentially installed in the connecting tube, the pressure regulating key is movably installed on the fixing frame and at least part of the structure passes through the fixing frame; Support columns are arranged on both sides of the fixing frame, so that the fixing frame can be connected to the swing arm structure of the printing mechanism through the support columns, and the swing arm structure is connected to the frame; The buckle cover assembly includes a buckle cover, a snap-on structure and a third elastic member. A plurality of accommodating grooves are provided on the connecting tube. A guide groove is provided on one side or both sides of each accommodating groove. The snap-on structure is rotatably mounted on the buckle cover. The third elastic member always maintains an elastic force in the direction of the connecting tube to drive the snap-on structure to rotate toward the guide groove, so as to be snap-connected with at least part of the side ear structure.

2. The printer according to claim 1, characterized in that: One end of the latch extending out of the core tube is connected to a connecting pin, and the pressure regulating key has a connecting hole, and a plurality of limiting ribs are formed in the connecting hole. The plurality of limiting ribs are formed on both sides of the connecting pin when the latch is connected to the pressure regulating key.

3. The printer according to claim 1, characterized in that: The side cover assembly includes a lamp cover, a control panel with an indicator light, and a light-transmitting cover made of soft material. The control panel is installed on the side of the lamp cover facing the connecting tube. The lamp cover is connected to the buckle cover to form an installation cavity for accommodating the connecting tube. The light-transmitting cover is installed on the lamp cover and is located on the outside of the indicator light to display the working status of the core tube assembly.

4. A voltage regulating structure, used in a printer, the printer comprising a frame, characterized in that: The printer comprises a housing component, a first elastic member and at least two core barrel components with pressure adjustment keys, wherein at least two core barrel components are arranged in parallel in the housing component along the horizontal direction of the pressure adjustment structure, one end of the first elastic member abuts against the core barrel component, and the other end of the first elastic member abuts against the housing component, and at least two pressure adjustment keys are located outside the housing component after passing through the housing component, and are used to adjust the pressure of the print head of the printer; The core barrel assembly comprises a core barrel connected to the shell assembly and a latch having a threaded structure, one end of the core barrel is provided with a threaded hole, the other end of the core barrel is formed with an axial hole connected to the threaded hole, the latch is inserted into the axial hole, the threaded structure is threadedly connected to the threaded hole, and the pressure adjustment key is connected to one end of the latch extending out of the core barrel, so as to adjust the length of the latch extending out of the core barrel; The core barrel assembly further includes a barrel cover and a second elastic member, one of the core barrel and the barrel cover is provided with a buckle protrusion, the other of the core barrel and the barrel cover is provided with a slot through hole, the barrel cover is movably connected to the core barrel through the cooperation of the buckle protrusion and the slot through hole, and the second elastic member abuts between the barrel cover and the latch; The core barrel comprises a core barrel body and a rivet having the threaded hole, the core barrel body is provided with a preset hole, and the rivet is fixed in the preset hole; A plurality of side ear structures are provided on the outer side of the core barrel, at least some of the side ear structures are in contact with the first elastic member, and at least some of the side ear structures are in contact with the buckle structure of the outer shell assembly; The housing assembly comprises a buckle cover assembly, a side cover assembly, a connecting tube and a fixing frame connected to the frame, the buckle cover assembly and the side cover assembly are fixed on both sides of the connecting tube, the fixing frame covers the upper ends of the buckle cover assembly and the side cover assembly, at least two core tube assemblies are sequentially installed in the connecting tube, the pressure regulating key is movably installed on the fixing frame and at least part of the structure passes through the fixing frame; The buckle cover assembly includes a buckle cover, a snap-on structure and a third elastic member. A plurality of accommodating grooves are provided on the connecting tube. A guide groove is provided on one side or both sides of each accommodating groove. The snap-on structure is rotatably mounted on the buckle cover. The third elastic member always maintains an elastic force in the direction of the connecting tube to drive the snap-on structure to rotate toward the guide groove, so as to be snap-connected with at least part of the side ear structure.

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