Anti-scald printer
By setting up switchable printhead and driver modules on the printer, the risk of burns caused by exposed printheads is eliminated, achieving a safe printing process and efficient printing results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-26
- Publication Date
- 2026-03-24
AI Technical Summary
The printer head is exposed to the outside and gets very hot, posing a risk of burns to users.
Design a scalding-proof printer by setting a printhead module and a drive module on the printer body, so that the printhead module can switch between a raised position and a lowered position. During printing, the printhead is exposed for heating and printing, and after printing is completed, it is retracted into the printer to isolate the user.
It effectively prevents users from being burned during printing and when picking up paper, reducing the risk of burns and improving printing accuracy and efficiency.
Smart Images
Figure CN224028672U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of printers, and particularly relates to a scald-preventing printer. BACKGROUND
[0002] In the prior art, when a printer prints a label paper, a print head of the printer needs to be heated to print the label paper. However, the print head is exposed outside the printer, and the temperature of the print head is still high after printing the label paper. Therefore, a user may be scalded when using the printer. CONTENT OF THE UTILITY MODEL
[0003] The present application provides a scald-preventing printer, which can solve the technical problem that a user may be scalded when using the printer.
[0004] The present application provides a scald-preventing printer, which comprises:
[0005] A printer main body having a printing opening;
[0006] A print head module movably arranged on the printer main body, wherein the print head module comprises a print head;
[0007] A driving module arranged on the printer main body and in transmission connection with the print head module, and configured to drive the print head module to switch between a raised position and a lowered position;
[0008] When the print head module is in the raised position, the print head is exposed from the printing opening, and when the print head module is in the lowered position, the print head module is located in the printer main body.
[0009] In some embodiments, the scald-preventing printer further comprises a carbon ribbon cassette, which is assembled on the printer main body and comprises a carbon ribbon.
[0010] When the print head module is in the raised position, the print head module is configured to drive the carbon ribbon to be in a taut state.
[0011] In some embodiments, the driving module is in rotational connection with the printer main body, and the driving module is in transmission connection with the print head module, and the print head module is driven to switch between the raised position and the lowered position by rotating the driving module.
[0012] In some embodiments, the driving module comprises:
[0013] A rotating shaft in rotational connection with the printer main body;
[0014] a cam mechanism connected to the rotating shaft and in driving contact with the printhead module;
[0015] a handle connected to the rotating shaft and partially extending out of the printer body.
[0016] In some embodiments, when the cam mechanism drives the printhead module to move to the raised position, the contact point between the cam mechanism and the printhead module passes the dead point of the cam mechanism.
[0017] In some embodiments, the cam mechanism comprises:
[0018] a first cam connected to the rotating shaft and in driving contact with the printhead module;
[0019] a second cam connected to the rotating shaft and in driving contact with the printhead module, and the second cam is spaced apart from the first cam along the axial direction of the rotating shaft.
[0020] In some embodiments, the width of the first cam and the second cam along the axial direction of the rotating shaft is d, and d satisfies: 2cm≥d≥0.8mm.
[0021] In some embodiments, the cam mechanism further comprises a rib connecting the first cam and the second cam.
[0022] In some embodiments, the center of the first cam and the center of the second cam have a first connecting line, and the distance between the midpoint of the first connecting line and the center of the printhead along the axial direction of the rotating shaft is less than 1cm.
[0023] In some embodiments, along the axial direction of the rotating shaft, the printhead module has opposite first and second edges, the first cam is close to the first edge, and the distance between the first cam and the first edge is less than 4cm, and the second cam is close to the second edge, and the distance between the second cam and the second edge is less than 4cm.
[0024] In some embodiments, the printhead module comprises:
[0025] a mounting shaft connected to the printer body;
[0026] a printhead assembly rotatably connected to the mounting shaft, and the driving module is configured to drive the printhead assembly to rotate between the raised position and the lowered position.
[0027] In some embodiments, the printhead module further comprises a reset member, one end of the reset member is connected with the printer body, the other end of the reset member is connected with the printhead assembly, and the reset member is used to drive the printhead assembly to move towards the lowered position.
[0028] In some embodiments, the printhead assembly comprises:
[0029] a panel, the panel is rotationally connected with the mounting shaft, and the side of the panel away from the drive module is provided with the printhead;
[0030] a back plate, the back plate is arranged on the side of the panel facing the drive module, and the back plate is drivingly connected with the drive module.
[0031] In some embodiments, the printhead assembly further comprises an elastic member, the elastic member is arranged in compression between the panel and the back plate, and the opposite ends of the elastic member are connected with the panel and the back plate respectively.
[0032] In some embodiments, the anti-scald printer further comprises a paper outlet plate, the paper outlet plate is arranged on the printer body, and the top end of the paper outlet plate is higher than the printhead and is arranged obliquely away from the printhead.
[0033] In some embodiments, an included angle a is formed between the paper outlet plate and the printhead, and a satisfies: 165°≥a≥120°.
[0034] In some embodiments, the width of the paper outlet plate is h, and h satisfies: 20mm≥h≥10mm.
[0035] The anti-scald printer based on the embodiments of the present application has at least the following beneficial effects:
[0036] By arranging a printing opening on the printer body, movably arranging the printhead module on the printer body, and arranging the printhead module to comprise the printhead, arranging the drive module on the printer body, and drivingly connecting the drive module with the printhead module, the printhead module can be switched between the raised position and the lowered position. When printing is needed, the drive module drives the printhead module to move to the raised position, at this time the printhead is exposed from the printing opening, so that the printhead can heat the carbon ribbon to realize printing, and the cover on the printer body is closed to isolate the printhead, which can prevent the user from being scalded. When the printing is completed, the drive module can drive the printhead module to move to the lowered position, at this time the printhead module is located inside the printer body, i.e. the printhead is retracted into the printer body, which can prevent the user from being scalded when taking the printed paper, and can reduce the risk of the user being scalded. BRIEF DESCRIPTION OF DRAWINGS
[0037] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.
[0038] Figure 1 A schematic diagram of a three-dimensional structure of a scald-preventing printer is provided for the embodiments of the present application.
[0039] Figure 2 A cross-sectional view of A-A in Figure 1
[0040] Figure 3 A schematic diagram of a bottom structure of a scald-preventing printer is provided for the embodiments of the present application.
[0041] Figure 4 A schematic diagram of a three-dimensional structure of a first perspective of a driving module and a print head module is provided for the embodiments of the present application.
[0042] Figure 5 A schematic diagram of a three-dimensional structure of a second perspective of a driving module and a print head module is provided for the embodiments of the present application.
[0043] Figure 6 A schematic diagram of a three-dimensional structure of a third perspective of a driving module and a print head module is provided for the embodiments of the present application.
[0044] Figure 7 A schematic diagram of a three-dimensional structure of a driving module is provided for the embodiments of the present application.
[0045] Explanation of reference signs:
[0046] 10, printer main body; 101, printing opening;
[0047] 20, print head module; 21, print head; 22, mounting shaft; 23, print head assembly; 231, face plate; 232, back plate; 24, reset member; 25, elastic member; 201, first edge; 202, second edge;
[0048] 30, driving module; 31, rotating shaft; 32, cam mechanism; 321, first cam; 322, second cam; 33, handle; 34, rib;
[0049] 40, carbon tape box;
[0050] 50, paper outlet plate. DETAILED DESCRIPTION
[0051] In order to make the purposes, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not intended to limit the present application.
[0052] Referring to Figures 1 to 3 A scald-preventing printer is provided for the embodiments of the present application, the scald-preventing printer comprises a printer main body 10, a print head module 20 and a driving module 30, the printer main body 10 has a printing opening 101, the print head module 20 is movably arranged on the printer main body 10, the print head module 20 comprises a print head 21, the driving module 30 is arranged on the printer main body 10 and is in transmission connection with the print head module 20, and is used for driving the print head module 20 to switch between a raised position and a lowered position, wherein when the print head module 20 is located at the raised position, the print head 21 is exposed from the printing opening 101, and when the print head module 20 is located at the lowered position, the print head module 20 is located in the printer main body 10.
[0053] It can be understood that the printer main body 10 comprises a shell and an upper cover, the upper cover can rotate relative to the printer main body 10 to switch between an open position and a closed position, the top surface of the shell can have the printing opening 101, and the shell further has a placement cavity, the placement cavity can be provided with a printing paper, the printing paper can pass through the printing opening 101, the upper cover further has a printing roller, when the upper cover is located at the closed position, the upper cover is covered with the shell, the upper cover can seal the placement cavity, and the upper cover and the shell further have a gap, the gap can form a paper outlet, the printing paper passes through above the printing opening 101 and extends from the paper outlet, and the printing roller can press the printing paper to be in contact with the print head 21 exposed from the printing opening 101, so that the print head 21 can print the printing paper, and the upper cover rotates away from the shell to switch from the closed position to the open position, so as to open the placement cavity and facilitate the user to replace the printing paper.
[0054] The print head module 20 can be movably arranged in the interior of the printer main body 10, i.e. the print head module 20 is movably arranged in the interior of the shell, and the driving module 30 can be arranged on the printer main body 10, the driving module 30 can be in transmission connection with the print head module 20 to drive the print head 21 to switch between the raised position and the lowered position.
[0055] When printing is needed, the driving module 30 drives the print head module 20 to move to the raised position, at this time the print head 21 is exposed by the printing opening 101, so that the print head 21 can heat the carbon ribbon to realize printing, and the cover on the printer body 10 is closed to isolate the print head 21, which can prevent the user from being scalded, when the printing is completed, the driving module 30 can drive the print head module 20 to move to the lowered position, at this time the print head module 20 is located inside the printer body 10, that is, the print head 21 is retracted into the printer body 10, which can prevent the user from being scalded when taking the printed paper, and can reduce the risk of the user being scalded.
[0056] In order to improve the accuracy and efficiency of printing, please refer to Figures 1 to 3 In some embodiments, the anti-scald printer further comprises a carbon ribbon cartridge 40, the carbon ribbon cartridge 40 is assembled in the printer body 10, and the carbon ribbon cartridge 40 comprises a carbon ribbon, when the print head module 20 is in the raised position, the print head module 20 can drive the carbon ribbon to be in a taut state.
[0057] Optionally, the side wall of the printer body 10 can be provided with an assembly cavity, the carbon ribbon cartridge 40 can be detachably assembled in the assembly cavity, the carbon ribbon cartridge 40 can comprise a cartridge body, a winding shaft and a dispensing shaft, the cartridge body can have a winding cavity and a dispensing cavity, the winding cavity and the dispensing cavity are communicated, the winding shaft is rotatably installed in the winding cavity, the dispensing shaft is rotatably installed in the dispensing cavity, and the carbon ribbon is wound on the dispensing shaft, the carbon ribbon can be dispensed from the dispensing shaft to the winding shaft,
[0058] When the print head module 20 is in the raised position, the print head module 20 can drive the carbon ribbon to be in a taut state, and the print head 21 can be in contact with the carbon ribbon, so that the print head 21 can heat the carbon ribbon to transfer heat to the toner on the carbon ribbon, so that the toner is melted or sublimated after being heated and adheres to the printing medium (such as paper, plastic film, etc.), thereby forming the required printed image or text, in addition, during printing, driving the carbon ribbon to be in a taut state can make the carbon ribbon move uniformly and stably, thereby preventing printing from being blurred, unclear or ghosted, etc., and improving the accuracy and efficiency of printing.
[0059] Please refer to Figures 2 to 4 In some embodiments, the driving module 30 is rotatably connected with the printer body 10, and the driving module 30 is drivingly connected with the print head module 20, and the print head module 20 is switched between the raised position and the lowered position by rotating the driving module 30.
[0060] Optionally, the driving module 30 is rotatably installed below the printhead module 20, and the driving module 30 is in transmission connection with the printhead module 20, when the driving module 30 rotates in a first direction, the driving module 30 can drive the printhead module 20 to rise to the raised position, when the driving module 30 rotates in a second direction, the second direction is opposite to the first direction, the driving module 30 can drive the printhead module 20 to fall to the lowered position, the printhead module 20 can be conveniently switched between the raised position and the lowered position by rotating the driving module 30.
[0061] Please refer to Figures 2 to 4 In some embodiments, the driving module 30 comprises a rotating shaft 31, a cam mechanism 32 and a handle 33, the rotating shaft 31 is in rotational connection with the printer body 10, the cam mechanism 32 is connected with the rotating shaft 31, and the cam mechanism 32 is in transmission contact with the printhead module 20, the handle 33 is connected with the rotating shaft 31, and the handle 33 partially extends out of the printer body 10.
[0062] It can be understood that the rotating shaft 31 is an elongated circular shaft, the inside of the printer body 10 can have a mounting seat, the rotating shaft 31 is rotatably installed on the mounting seat, the rotating shaft 31 is located below the printhead module 20, the cam mechanism 32 is a component with a curved profile, the cam mechanism 32 is connected with the rotating shaft 31, and the cam mechanism 32 can be in transmission contact with the printhead module 20, the printhead module 20 is driven to move back and forth by the rotation of the cam mechanism 32, that is, the printhead module 20 is switched between the raised position and the lowered position.
[0063] In this embodiment, the handle 33 can be directly connected with the cam mechanism 32, or the handle 33 is directly integrally formed with the cam structure, so that the handle 33 is connected with the rotating shaft 31, and the handle 33 partially extends out of the printer body 10, so that the user can drive the cam mechanism 32 to rotate by rotating the handle 33.
[0064] Exemplarily, the bottom surface of the printer body 10 is provided with a communication port, the handle 33 can extend out of the printer body 10 from the communication port, and the extension direction of the communication port can be perpendicular to the axial direction of the rotating shaft 31, so that the communication port can provide sufficient space for the handle 33 to move, and the user can conveniently operate the handle 33.
[0065] In some embodiments, when the cam structure drives the printhead module 20 to move to the raised position, the contact point between the cam mechanism 32 and the printhead module 20 passes the dead point position of the cam mechanism 32.
[0066] It should be explained that the dead point position of the cam mechanism 32 refers to a position where the transmission angle of the printhead module 20 at the contact point with the cam mechanism 32 is zero during the rotation of the cam mechanism 32. At this position, the effective moment of rotation of the driving force on the printhead module 20 is zero, and the printhead module 20 cannot continue to move, which is referred to as the dead point position of the cam mechanism 32.
[0067] Therefore, when the cam structure drives the printhead module 20 to move to the raised position, and the contact point of the cam mechanism 32 with the printhead module 20 passes the dead point position of the cam mechanism 32, it can be ensured that the printhead module 20 can maintain a stable raised state to realize stable printing function.
[0068] Please refer to Figures 4 to 7 In some embodiments, the cam mechanism 32 includes a first cam 321 and a second cam 322, both of which are connected with the rotating shaft 31, and the first cam 321 and the second cam 322 are arranged in the axial direction of the rotating shaft 31, and both of which are in transmission contact with the printhead module 20.
[0069] Optionally, the first cam 321 and the second cam 322 are both connected with the rotating shaft 31, so that the first cam 321 and the second cam 322 can rotate synchronously, and the shapes of the first cam 321 and the second cam 322 are the same, the projection of the first cam 321 in the axial direction of the rotating shaft 31 coincides with the projection of the second cam 322 in the axial direction of the rotating shaft 31, and both of which are in transmission contact with the printhead module 20, so that the first cam 321 and the second cam 322 can synchronously drive the printhead module 20 to switch between the raised position and the lowered position during synchronous rotation, and can more stably drive the printhead module 20.
[0070] Please refer to Figure 7 In some embodiments, the width of the first cam 321 and the second cam 322 in the axial direction of the rotating shaft 31 is d, and d satisfies: 2cm≥d≥0.8mm.
[0071] Specifically, the circumferential surface of the first cam 321 is in contact with the printhead module 20, and the circumferential surface of the second cam 322 is also in contact with the printhead module 20, and the width of the circumferential surface of the first cam 321 and the circumferential surface of the second cam 322 in the axial direction of the rotating shaft 31 is d, and d satisfies: 2cm≥d≥0.8mm.
[0072] It should be noted that the width d of the circumferential surface is the thickness of the first cam 321 and the second cam 322, d cannot be too small, if d < 0.8mm, it will cause the structural strength of the first cam 321 and the second cam 322 to be insufficient to support the print head module 20, the first cam 321 and the second cam 322 are easy to break, of course d also cannot be too large, if d > 2cm, the contact area between the first cam 321 and the print head module 20 will be larger, causing the friction between the first cam 321 and the print head module 20 to increase, the larger friction will make it difficult for the first cam 321 to drive the print head module 20 to move, the user needs to use a lot of effort to drive the print head module 20 to switch between the raised position and the lowered position, which is very inconvenient to use, the second cam 322 is the same as this place and will not be repeated here, therefore, when d satisfies: 2cm ≥ d ≥ 0.8mm, it can facilitate the user to use, and can also support the print head module 20.
[0073] Please refer to Figure 7 In some embodiments, the cam mechanism 32 further comprises a rib 34, and the rib 34 is connected to the first cam 321 and the second cam 322.
[0074] Optionally, the cam mechanism 32 can further comprise a plurality of ribs 34, and the plurality of ribs 34 can be respectively connected to the first cam 321 and the second cam 322. By providing the rib 34, the structural strength of the first cam 321 and the second cam 322 can be increased, so that the first cam 321 and the second cam 322 are not easy to break and can stably drive the print head module 20 to move.
[0075] Please refer to Figures 4 to 6 In some embodiments, the center of the first cam 321 and the center of the second cam 322 have a first connecting line, and the distance between the midpoint of the first connecting line and the center point of the print head 21 along the axial direction of the rotating shaft 31 is less than 1cm.
[0076] It can be understood that the first cam 321 has a first through hole for the rotating shaft 31 to pass through, the midpoint of the first cam 321 is on the axial center line of the first through hole, and the distance between the midpoint of the first cam 321 and the opposite ends of the first through hole is equal. Similarly, the second cam 322 has a second through hole for the rotating shaft 31 to pass through, the midpoint of the second cam 322 is on the axial center line of the second through hole, and the distance between the midpoint of the second cam 322 and the opposite ends of the second through hole is equal. The connecting line between the midpoint of the first cam 321 and the midpoint of the second cam 322 is the first connecting line, the first connecting line has a midpoint along its length direction, the print head 21 has a center point along its length direction, and the distance between the midpoint of the first connecting line and the center point of the print head 21 along the axial direction of the rotating shaft 31 is less than 1cm, which can facilitate the first cam 321 and the second cam 322 to drive the print head module 20 to move to the raised position.
[0077] More specifically, the printing head module 20 is divided into left and right parts by a line passing through the center point of the printing head 21 and perpendicular to the axis of the rotating shaft 31, the contact position of the first cam 321 with the printing head module 20 is located in the left part of the printing head module 20, and the contact position of the second cam 322 with the printing head module 20 is located in the right part of the printing head module 20, so that the first cam 321 and the second cam 322 can resist the left and right parts of the printing head module 20, and the driving force provided by the first cam 321 and the second cam 322 can uniformly act on the left and right parts of the printing head module 20, so that the printing head module 20 is more uniformly stressed and can be more easily driven to move.
[0078] Referring to Figures 4 to 6 In some embodiments, along the axis of the rotating shaft 31, the printing head module 20 has opposite first and second edges 201 and 202, the first cam 321 is close to the first edge 201, and the distance between the first cam 321 and the first edge 201 is less than 4 cm, and the second cam 322 is close to the second edge 202, and the distance between the second cam 322 and the second edge 202 is less than 4 cm.
[0079] Optionally, along the axis of the rotating shaft 31, the opposite two side edges of the printing head module 20 are the first and second edges 201 and 202, the first cam 321 is arranged close to the first edge 201, the second cam 322 is arranged close to the second edge 202, and the distance between the first cam 321 and the first edge 201 is less than 4 cm, and the distance between the second cam 322 and the second edge 202 is less than 4 cm, so that the first cam 321 and the second cam 322 can be arranged close to the opposite two side edges of the printing head module 20, respectively, which can prevent the first cam 321 and the second cam 322 from being concentrated near the center point of the printing head module 20, can prevent the driving force received by the printing head module 20 from being too concentrated, and can prevent the printing head module 20 from being difficult to move due to unbalanced stress.
[0080] Referring to Figure 2 and Figure 4 In some embodiments, the printing head module 20 includes a mounting shaft 22 and a printing head assembly 23, the mounting shaft 22 is connected with the printer body 10, the printing head assembly 23 is rotationally connected with the mounting shaft 22, and the driving module 30 is used to drive the printing head assembly 23 to rotate between the raised position and the lowered position.
[0081] Optionally, the mounting shaft 22 is shaped similarly to the rotating shaft 31, and the mounting shaft 22 is connected to the inside of the printer main body 10, and the printhead assembly 23 is rotatably connected to the mounting shaft 22, so that the printhead assembly 23 can rotate around the mounting shaft 22, and rotating the first cam 321 and the second cam 322 can drive the printhead assembly 23 to rotate between the raised position and the lowered position, more specifically, the printhead assembly 23 can be rotated upward to the raised position, and the printhead assembly 23 can be rotated downward to the lowered position, and by rotatably connecting the printhead assembly 23 to the mounting shaft 22, the drive module 30 can drive the printhead assembly 23 to move more conveniently.
[0082] Please refer to Figure 5 In some embodiments, the printhead module 20 further comprises a reset member 24, one end of the reset member 24 is connected to the printer main body 10, the other end of the reset member 24 is connected to the printhead assembly 23, and the reset member 24 is used to drive the printhead assembly 23 to move towards the lowered position.
[0083] It should be noted that there is a certain friction between the printhead assembly 23 and the mounting shaft 22, and the frictional resistance can prevent the printhead assembly 23 from rotating, so that the printhead assembly 23 may not be able to move downward simply by relying on the gravity of the printhead assembly 23.
[0084] In this embodiment, the reset member 24 can be a torsion spring, and the reset member 24 has hooks at opposite ends, one end of the reset member 24 can be hooked to the printer main body 10, and the other end of the reset member 24 can be hooked to the printhead assembly 23, and when the printhead assembly 23 moves upward to the raised position, the upward lifting process of the printhead assembly 23 can stretch the reset member 24, so that the reset member 24 has a tendency to drive the printhead assembly 23 to move downward to the lowered position, and when the user actuates the handle 33 to drive the first cam 321 and the second cam 322 to no longer lift the printhead assembly 23, the reset member 24 can drive the printhead assembly 23 to move downward to the lowered position, which can further reduce the risk of the user being scalded.
[0085] Please refer to Figures 4 to 6 In some embodiments, the printhead assembly 23 comprises a face plate 231 and a back plate 232, the face plate 231 is rotatably connected to the mounting shaft 22, and the side of the face plate 231 away from the drive module 30 is provided with the printhead 21, and the back plate 232 is arranged on the side of the face plate 231 facing the drive module 30, and the back plate 232 is drivingly connected to the drive module 30.
[0086] Specifically, the panel 231 is provided with a through hole, the mounting shaft 22 is arranged in the through hole, so that the panel 231 can rotate relative to the mounting shaft 22, the panel 231 is located above the driving module 30, and the side, away from the driving module 30, of the panel 231 is provided with the print head 21. The back plate 232 is in the same shape as the panel 231, and the back plate 232 can be connected to the side, facing the driving module 30, of the panel 231, so that the driving module 30 can be drivingly connected to the back plate 232. The driving module 30 can drive the back plate 232 and the panel 231 to rotate synchronously, so as to drive the panel 231 to move to the raised position and expose the print head 21 from the printing opening 101.
[0087] Referring to Figure 6 In some embodiments, the print head assembly 23 further comprises an elastic member 25, the elastic member 25 is arranged in compression between the panel 231 and the back plate 232, and the opposite ends of the elastic member 25 are connected to the panel 231 and the back plate 232 respectively.
[0088] Optionally, the panel 231 is connected to the back plate 232 through the elastic member 25. When the upper cover of the printer main body 10 is in the closed position, the upper cover is closed with the shell, and the print roller of the upper cover can press the print head 21, so that the panel 231 and the back plate 232 can press the elastic member 25. When the driving module 30 no longer supports the print head module 20, the elastic member 25 in the compressed state can drive the back plate 232 to move downward, so that the print head module 20 is more easily moved downward to the lowered position, which can further prevent the user from being scalded.
[0089] Referring to Figure 1 In some embodiments, the anti-scalding printer further comprises a paper outlet plate 50, the paper outlet plate 50 is arranged on the printer main body 10, and the top end of the paper outlet plate 50 is higher than the print head 21. The top end of the paper outlet plate 50 is also arranged to be inclined away from the print head 21.
[0090] Optionally, the paper outlet plate 50 can be arranged on the top of the printer main body 10, and the paper outlet plate 50 can also be arranged at an angle with the plane where the printing opening 101 is located. When the print head module 20 moves to the raised position, the paper outlet plate 50 can be arranged at an angle with the print head 21, and the top end of the paper outlet plate 50 is higher than the print head 21. The top end of the paper outlet plate 50 is also arranged to be inclined away from the print head 21, so that the paper outlet plate 50 is inclined away from the side of the upper cover of the printer main body 10. This can prevent the upper cover from interfering with the paper outlet plate 50 when the upper cover is closed, avoiding the situation that the upper cover cannot be closed.
[0091] Referring to Figure 1 In some embodiments, an angle α is formed between the paper outlet plate 50 and the print head 21, and α satisfies: 165°≥α≥120°.
[0092] Optionally, an angle a can be formed between the paper outlet plate 50 and the print head 21. If a is greater than 165°, the paper outlet plate 50 and the print head 21 tend to be parallel, more specifically, the paper outlet plate 50 and the print head 21 tend to be horizontal, so that the vertical distance between the top end of the paper outlet plate 50 and the print head 21 is too small, and the user can easily touch the print head 21, increasing the risk of the user being scalded. If a is less than 120°, when the upper cover of the printer main body 10 is closed, the upper cover is likely to hit the paper outlet plate 50.
[0093] Please refer to Figure 1 In some embodiments, the width of the paper outlet plate 50 is h, and h satisfies: 20mm≥h≥10mm.
[0094] More specifically, the width h of the paper outlet plate 50 cannot be too small. If h is less than 10cm, the vertical distance between the top end of the paper outlet plate 50 and the print head 21 is also too small, and the user can easily touch the print head 21, increasing the risk of the user being scalded. Of course, the width h of the paper outlet plate 50 cannot be too large. If h is greater than 20cm, the volume of the printer becomes too large.
[0095] 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 should be 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 on the present patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to the specific circumstances.
[0096] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application shall be included in the protection scope of the present application.
Claims
1. A scald-proof printer, characterized in that, include: The printer body (10) has a printing opening (101). A printhead module (20) is movably mounted on the printer body (10), and the printhead module (20) includes a printhead (21). A drive module (30) is disposed on the printer body (10) and is connected to the print head module (20) for driving the print head module (20) to switch between the raised position and the lowered position; When the printhead module (20) is in the raised position, the printhead (21) is exposed through the print opening (101). When the printhead module (20) is in the lowered position, the printhead module (20) is located inside the printer body (10).
2. The anti-scalding printer according to claim 1, characterized in that, The anti-scalding printer also includes a ribbon cartridge (40), which is assembled to the printer body (10) and includes a ribbon. When the printhead module (20) is in the raised position, the printhead module (20) is used to drive the ribbon to be in a taut state.
3. The anti-scalding printer according to claim 1, characterized in that, The drive module (30) is rotatably connected to the printer body (10), and the drive module (30) is drive-connected to the print head module (20). By rotating the drive module (30), the print head module (20) is driven to switch between the raised position and the lowered position.
4. The anti-scalding printer according to claim 3, characterized in that, The drive module (30) includes: The rotating shaft (31) is rotatably connected to the printer body (10); A cam mechanism (32) is connected to the rotating shaft (31) and makes transmission contact with the printhead module (20); The handle (33) is connected to the rotating shaft (31), and part of the handle (33) extends out of the printer body (10).
5. The anti-scalding printer according to claim 4, characterized in that, When the cam mechanism (32) drives the printhead module (20) to move to the raised position, the contact point between the cam mechanism (32) and the printhead module (20) passes the dead point position of the cam mechanism (32).
6. The anti-scalding printer according to claim 4, characterized in that, The cam mechanism (32) includes: The first cam (321) is connected to the rotating shaft (31) and makes transmission contact with the printhead module (20); The second cam (322) is connected to the rotating shaft (31) and makes transmission contact with the printhead module (20), and the second cam (322) and the first cam (321) are spaced apart along the axial direction of the rotating shaft (31).
7. The anti-scalding printer according to claim 6, characterized in that, Along the axial direction of the rotation axis (31), the width of the first cam (321) and the second cam (322) is d, and d satisfies: 2cm≥d≥0.8mm.
8. The anti-scalding printer according to claim 6, characterized in that, The cam mechanism (32) further includes a rib (34) that connects the first cam (321) and the second cam (322).
9. The anti-scalding printer according to claim 6, characterized in that, The center of the first cam (321) and the center of the second cam (322) are connected by a first line, and the distance between the midpoint of the first line and the center point of the print head (21) along the axial direction of the rotation axis (31) is less than 1 cm.
10. The anti-scalding printer according to claim 6, characterized in that, Along the axial direction of the rotation axis (31), the printhead module (20) has a first edge (201) and a second edge (202) opposite each other, the first cam (321) is close to the first edge (201) and the distance between the first cam (321) and the first edge (201) is less than 4 cm, the second cam (322) is close to the second edge (202) and the distance between the second cam (322) and the second edge (202) is less than 4 cm.
11. The anti-scalding printer according to claim 1, characterized in that, The printhead module (20) includes: Mounting shaft (22), which is connected to the printer body (10); Printhead assembly (23), which is rotatably connected to the mounting shaft (22), and drive module (30) for driving the printhead assembly (23) to rotate between the raised position and the lowered position.
12. The anti-scalding printer according to claim 11, characterized in that, The printhead module (20) also includes a reset member (24), one end of which is connected to the printer body (10), and the other end of which is connected to the printhead assembly (23). The reset member (24) is used to drive the printhead assembly (23) to move toward the lowered position.
13. The anti-scalding printer according to claim 11, characterized in that, The printhead assembly (23) includes: Panel (231), which is rotatably connected to the mounting shaft (22), and the print head (21) is provided on the side of the panel (231) facing away from the drive module (30). A back plate (232) is disposed on the side of the panel (231) facing the drive module (30), and the back plate (232) is connected to the drive module (30) in a transmission manner.
14. The anti-scalding printer according to claim 13, characterized in that, The printhead assembly (23) also includes an elastic element (25), which is compressed between the panel (231) and the back plate (232), and the opposite ends of the elastic element (25) are respectively connected to the panel (231) and the back plate (232).
15. The anti-scalding printer according to claim 1, characterized in that, The anti-scalding printer also includes an output paperboard (50), which is disposed on the printer body (10), and the top of the output paperboard (50) is higher than the print head (21) and is inclined to the side away from the print head (21).
16. The anti-scalding printer according to claim 15, characterized in that, An angle α is formed between the output paperboard (50) and the print head (21), where α satisfies: 165°≥α≥120°.
17. The anti-scalding printer according to claim 15, characterized in that, The width of the output paperboard (50) is h, and h satisfies: 20mm ≥ h ≥ 10mm.