Printer
By setting a protrusion on the ribbon supply path, the top of the protrusion supports the ribbon to form a small hill shape, which solves the problem of ribbon wrinkles, improves printing effects and reduces printer costs.
Patent Information
- Application Number
- CN202422967473.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-02
- Publication Date
- 2025-09-26
- Estimated Expiration
- 2034-12-02
AI Technical Summary
In the existing technology, wrinkles are easily generated in the path of the ribbon supplied to the print head, affecting the printing effect. Simply increasing the tension has a poor effect.
A protrusion is provided on the ribbon supply path. The protrusion has a vertex and an end point. The vertex protrudes further from the printing position than the end point, forming a small hill shape, which supports the ribbon to flatten and concentrate tension, thereby reducing wrinkles.
It effectively flattens the ribbon, reduces wrinkles, and improves printing quality, while reducing the power requirements of the tension-providing components and lowering printer costs.
Smart Images
Figure CN223384203U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of printing technology, and in particular to a printer. Background Art
[0002] The printer is equipped with a ribbon roll and a media roll, which can supply the ribbon and media to the print head. The heat of the print head melts the toner on the ribbon, and the melted toner is transferred to the media, thus realizing the printing operation.
[0003] During the ribbon's journey from the printer to the printhead, wrinkles can easily form, affecting print quality. Existing techniques typically address this issue by adjusting system tension, for example by using dual motors or motors with greater pulling force. However, simply increasing tension is ineffective in addressing ribbon wrinkles. Utility Model Content
[0004] This application provides a printer for solving the problem that wrinkles are easily generated in the path of the ribbon supplied to the print head, affecting the printing effect.
[0005] A printer provided in an embodiment of the present application includes: a body and a printing component, wherein a pressure roller is provided in the body, and the printing component includes a print head, and the print head can abut against the pressure roller, and the position where the two contact is the printing position; the body includes a ribbon rack, and the ribbon rack has a frame and a supply shaft provided on the frame, and a ribbon roll is installed on the supply shaft, and the ribbon is supplied from the supply shaft to the printing position; a protrusion is provided on the path where the ribbon is supplied from the supply shaft to the printing position, at least a part of the protrusion is in contact with the ribbon, and the protrusion has two endpoints and at least one vertex located between the two endpoints, and the vertex protrudes from the printing position to a greater extent than the endpoints.
[0006] In a possible design, along the path of the ribbon supplied to the printing position, the vertex is farther from the printing position than the end point.
[0007] In a possible design, along a direction perpendicular to the path of the ribbon supplied to the printing position, the protrusion protrudes from the printing position to the same extent at different positions.
[0008] In a possible design, along a direction perpendicular to a path of the ribbon supplied to the printing position, the vertex protrudes from the printing position to a greater extent than the end point.
[0009] In one possible design, along the path direction of the ribbon being supplied to the printing position, the distances between the protrusion at different positions and the printing position are the same; along the path direction perpendicular to the path direction of the ribbon being supplied to the printing position, the vertex protrudes from the printing position to a greater extent than the end point.
[0010] In a possible design, the protrusion has two vertices between the two end points, and along a direction perpendicular to the path of the ribbon supplied to the printing position, the portion of the protrusion between the two vertices protrudes from the printing position to the same extent.
[0011] In a possible design, along the path of the ribbon being supplied to the printing position, a portion of the protrusion between two vertices is at the same distance from the printing position.
[0012] In a possible design, the ink ribbon does not contact other structures of the printer on the path of the ink ribbon being supplied from the protrusion to the printing position.
[0013] In a possible design, the printing assembly further includes a mounting bracket, the print head is mounted on the mounting bracket, and the mounting bracket is disposed on the frame; the protrusion is disposed on the mounting bracket or the frame.
[0014] In a possible design, the protrusion is integrally formed with the mounting bracket or the frame.
[0015] In this application, when the ribbon passes through the protrusion, the apex supports the ribbon, causing the center of the ribbon to bulge out, creating a hilly overall shape. This flattens the ribbon and reduces wrinkles. Furthermore, the protrusion concentrates the tension on the ribbon at the point of contact with the apex. This allows the printer to apply less tension to the ribbon, flattening the ribbon and reducing wrinkles, thereby achieving better printing results. Furthermore, the protrusion is relatively simple in structure, and its installation is inexpensive, without increasing the complexity of the printer's structure or its production costs.
[0016] It should be understood that the foregoing general description and the following detailed description are merely illustrative and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a schematic structural diagram of a printer provided in this application in a specific embodiment, wherein the printer body is in a closed state;
[0018] Figure 2 for Figure 1 A schematic structural diagram of the printer in FIG. 1 is shown in FIG. 2 , wherein the printer body is in an open state;
[0019] Figure 3 for Figure 2 Schematic diagram of the structure of the middle ribbon frame and printing assembly;
[0020] Figure 4 for Figure 2 Schematic diagram of the structure of the printing assembly and the pressure roller;
[0021] Figure 5 for Figure 4 A schematic structural diagram of the protrusion in Example 1;
[0022] Figure 6 for Figure 1 A top view of the printer;
[0023] Figure 7 for Figure 6 The AA-axis cross-sectional view of the printer;
[0024] Figure 8 for Figure 7 A partial enlarged view of the middle Ⅰ area;
[0025] Figure 9 for Figure 6 The cross-sectional view of the printer in the BB direction;
[0026] Figure 10 for Figure 9 A partial enlarged view of the middle II area;
[0027] Figure 11 for Figure 4 A schematic structural diagram of the protrusion in Example 2.
[0028] Reference numerals:
[0029] 1- body;
[0030] 11-cover;
[0031] 12-base;
[0032] 121-pressure roller;
[0033] 13-ribbon rack;
[0034] 131-frame;
[0035] 132-supply shaft;
[0036] 133-Recovery shaft;
[0037] 134-Connecting rod
[0038] 14- medium outlet;
[0039] 2-Media roll;
[0040] 3- Print components;
[0041] 31-print head;
[0042] 32-Mounting bracket
[0043] 4- protrusion;
[0044] 41-Vertex;
[0045] 42-Endpoint.
[0046] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application. DETAILED DESCRIPTION
[0047] In order to better understand the technical solution of the present application, the embodiments of the present application are described in detail below with reference to the accompanying drawings.
[0048] It should be clear that the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.
[0049] The terms used in the embodiments of the present application are for the purpose of describing specific embodiments only and are not intended to limit the present application. The singular forms "a", "an", "the" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise.
[0050] It should be understood that the term "and / or" as used herein is merely a description of the relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Furthermore, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.
[0051] It should be noted that the directional words such as "upper", "lower", "left", and "right" described in the embodiments of the present application are described based on the angles shown in the accompanying drawings and should not be understood as limiting the embodiments of the present application. In addition, in the context, it should be understood that when it is mentioned that an element is connected to another element "on" or "under", it can not only be directly connected to the other element "on" or "under", but also be indirectly connected to the other element "on" or "under" through an intermediate element.
[0052] This application provides a printer, such as Figure 1 and Figure 2As shown, the printer includes a body 1, which includes a cover 11, a base 12, and a ribbon drawer 13. The cover 11 is rotatably connected to the base 12, and the ribbon drawer 13 is disposed therebetween. The body 1 has an open state and a closed state. When the body 1 is closed, the cover 11 covers the base 12, and the ribbon drawer 13 is enclosed between the cover 11 and the base 12. When the body 1 is open, the cover 11 rotates open relative to the base 12, exposing the ribbon drawer 13 to the user. The ribbon drawer 13 also has a connecting rod 134, which is rotatably connected to the cover 11 via the connecting rod 134. Therefore, when the cover 11 rotates open relative to the base 12, the ribbon drawer 13 can also be rotated and raised relative to the base 12.
[0053] like Figure 2 As shown, the printer further includes: a printing assembly 3, and a pressure roller 121 is provided on the base 12. When the cover 11 covers the base 12, the print head 31 can abut against the pressure roller 121, and the position where the two contact is the printing position P ( Figure 8 and Figure 10 The printing position P is shown in FIG.
[0054] like Figure 3 As shown, the ribbon rack 13 has a frame 131 and a supply shaft 132 and a recovery shaft 133 provided on the frame 131. The supply shaft 132 is provided with a ribbon roll. The printing assembly 3 is provided on the ribbon rack 13. When the printer performs a printing operation, the ribbon is supplied from the supply shaft 132 to the printing position P, and then recovered from the printing position P to the recovery shaft 133. Figure 2 As shown, a printing medium roll 2 is installed between the ribbon holder 13 and the base 12. The printing medium and the ribbon are supplied together to the printing position P. The pressure roller 121 presses the printing medium and the ribbon against the print head 3, and the ink on the ribbon is transferred to the printing medium. Figure 1 As shown, a medium outlet 14 is further provided between the cover 11 and the base 12 , and the printed print medium can be discharged from the medium outlet 14 under the rotation of the pressure roller 121 .
[0055] like Figure 4 and Figure 5 As shown, a protrusion 4 is provided on the path where the ribbon is supplied from the supply shaft 132 to the printing position P, at least a portion of the protrusion 4 is in contact with the ribbon, the protrusion 4 has two endpoints 42 and at least one vertex 41 located between the two endpoints, and the vertex 41 protrudes from the printing position P to a greater extent than the endpoint 42.
[0056] As the ribbon passes over protrusion 4, apex 41 props up the ribbon, causing the center of the ribbon to bulge out, creating a hilly slope. This flattens the ribbon and reduces wrinkles. Furthermore, protrusion 4 concentrates the tension on the ribbon at the point of contact with apex 41. This allows the printer to apply less tension to the ribbon, flattening the ribbon and reducing wrinkles, resulting in better printing results.
[0057] In addition, the structure of the protrusion 4 is relatively simple, and the cost of providing the protrusion 4 is low, which will not increase the complexity of the printer structure, nor will it increase the production cost of the printer.
[0058] Further, such as Figure 4 As shown, on the path where the ribbon is supplied from the protrusion 4 to the printing position P, the ribbon does not contact other structures of the printer, so that the force applied to the ribbon will not be changed by other structures of the printer, thereby keeping the ribbon in a wrinkle-free state before reaching the printing position P.
[0059] Furthermore, if Figure 4 As shown, the printing assembly 3 further includes a mounting bracket 32, the print head 31 is mounted on the mounting bracket 32, the mounting bracket 32 is disposed on the frame 131, and the protrusion 4 is disposed on the mounting bracket 32 or the frame 131. That is, the protrusion 4 can be disposed on the mounting bracket 32 so as to be located on the path where the ribbon is supplied from the supply shaft 132 to the printing position P, or it can be disposed on the frame 131 so as to be located on the path where the ribbon is supplied from the supply shaft 132 to the printing position P.
[0060] Optionally, the protrusion 4 is integrally formed with the mounting bracket 32 or the frame 131 , thereby facilitating the production of the protrusion 4 and reducing the complexity of printer assembly.
[0061] Optionally, the protrusion 4 and the mounting bracket 32 or the frame body 131 are provided separately, and the protrusion 4 can be connected to the mounting bracket 32 or the frame body 131 by bonding, clamping, etc.
[0062] The present application provides the following various embodiments for the specific structure of the protrusion 4. It is understood that the structure of the protrusion 4 is not limited to the following embodiments, and the following embodiments do not constitute a limitation on the structure of the protrusion 4.
[0063] Example 1
[0064] In this embodiment, if Figures 6 to 10 As shown, along the path direction X of the ribbon supplied to the printing position P, the vertex 41 is farther away from the printing position P than the end point 42, and along the path direction Y perpendicular to the ribbon supplied to the printing position P, the vertex 41 protrudes from the printing position P to a greater extent than the end point 42.
[0065] In the path of the ribbon supplied to the printing position P, the ribbon first contacts the vertex 41 and is lifted up by the vertex 41, so that the path length of the ribbon moving from the center position to the printing position P is longer than the path length of the ribbon moving from the edge positions at both ends to the printing position P. The ribbon has a tendency and force to choose a shorter path, so the ribbon appears in the shape of a small hill, the ribbon is flattened, and there are no wrinkles on the ribbon, so that the ribbon reaching the printing position P is wrinkle-free, and the printing effect of the printer is better.
[0066] At the same time, the tension at the point where the ribbon contacts the vertex 41 is concentrated, so that the ribbon has lower requirements on the tension provided by the printer. The printer can choose a tension providing component with relatively small power (such as a motor), which is beneficial to reducing the cost of the printer.
[0067] For the convenience of description, the path direction of the ribbon supplied to the printing position P is defined as a first direction X, and the path direction perpendicular to the ribbon supplied to the printing position P is defined as a second direction Y.
[0068] Furthermore, along the first direction X, the distance between the protrusion 4 and the printing position P gradually decreases from the vertex 41 to the end point 42; along the second direction Y, the degree to which the protrusion 4 protrudes from the printing position P gradually decreases from the vertex 41 to the end point 42, making the protrusion 4 relatively smooth as a whole without sharp protrusions, thereby preventing the ribbon from being scratched. Preferably, the protrusion 4 is arc-shaped.
[0069] Optionally, the contact position between the vertex 41 and the ribbon may be the center of the ribbon in the second direction Y, or may be slightly offset from the center of the ribbon in the second direction Y.
[0070] It can be understood that along the path direction X where the ribbon is supplied to the printing position P, the distances between the protrusion 4 at different positions and the printing position P are the same, and along the path direction Y where the ribbon is supplied perpendicular to the printing position P, the vertex 41 protrudes from the printing position P to a greater extent than the end point 42, which can also achieve the purpose of flattening the ribbon and reducing wrinkles.
[0071] It can be understood that along the path direction X where the ribbon is supplied to the printing position P, the vertex 41 is farther away from the printing position P than the end point 42, and along the path direction Y where the ribbon is supplied perpendicular to the printing position P, the protrusion 4 protrudes from the printing position P to the same extent at different positions, which can also achieve the purpose of flattening the ribbon and reducing wrinkles.
[0072] Example 2
[0073] In this embodiment, if Figure 11As shown, the protrusion 4 has two vertices 41 between two end points 42. Along the path direction Y of the ribbon supplied to the printing position P, the portion of the protrusion 4 between the two vertices 41 protrudes from the printing position P to the same extent, and along the path direction X of the ribbon supplied to the printing position P, the portion of the protrusion 4 between the two vertices 41 is at the same distance from the printing position P.
[0074] As the ribbon travels to printing position P, the two vertices 41 and the area between them lift the ribbon in contact with them. This results in the ribbon's center path being longer than the path from the edges to printing position P. The ribbon tends to take the shorter path and exerts a force, resulting in the ribbon forming a small hillside shape, flattening the ribbon and eliminating wrinkles. The relatively long length of the two vertices 41 and the area between them increases the reliability of the ribbon lift.
[0075] At the same time, the tension at the contact point between the ribbon and the two vertices 41 and the area between the two vertices 41 is concentrated, so that the ribbon has lower requirements on the tension provided by the printer. The printer can choose a tension-providing component with relatively low power (such as a motor), which is beneficial to reducing the cost of the printer.
[0076] Furthermore, along the first direction X, the distance between the protrusion 4 and the printing position P gradually decreases from the vertex 41 to the end point 42; along the second direction Y, the degree to which the protrusion 4 protrudes from the printing position P gradually decreases from the vertex 41 to the end point 42, making the protrusion 4 relatively smooth as a whole without sharp protrusions, thereby preventing the ribbon from being scratched. Preferably, the protrusion 4 is trapezoidal.
[0077] It is understandable that the protrusion 4 may have more vertices 41 between the two end points 42, as long as the purpose of flattening the ribbon and reducing wrinkles can be achieved.
[0078] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.
Claims
1. A printer, characterized in that: The printer comprises: a body (1) and a printing assembly (3); a pressure roller (121) is provided in the body (1); the printing assembly (3) comprises a print head (31); the print head (31) is capable of abutting against the pressure roller (121); and the position where the two contact is a printing position; The machine body (1) includes a ribbon frame (13), the ribbon frame (13) having a frame body (131) and a supply shaft (132) arranged on the frame body (131), a ribbon roll being mounted on the supply shaft (132), and the ribbon being supplied from the supply shaft (132) to the printing position; A protrusion (4) is provided on a path where the ribbon is supplied from the supply shaft (132) to the printing position, at least a portion of the protrusion (4) contacts the ribbon, and the protrusion (4) has two end points (42) and at least one vertex (41) located between the two end points (42), wherein the vertex (41) protrudes from the printing position to a greater extent than the end points (42).
2. The printer according to claim 1, wherein: Along the path direction of the ribbon supplied to the printing position, the vertex (41) is farther from the printing position than the end point (42).
3. The printer according to claim 2, wherein: Along a path perpendicular to the ribbon being supplied to the printing position, the protrusion (4) protrudes from the printing position to the same extent at different positions.
4. The printer according to claim 2, wherein: Along a direction perpendicular to the path of the ribbon supplied to the printing position, the apex (41) protrudes from the printing position to a greater extent than the end point (42).
5. The printer according to claim 1, wherein: Along the path direction of the ribbon being supplied to the printing position, the distances between the protrusion (4) and the printing position at different positions are the same; Along a direction perpendicular to the path of the ribbon supplied to the printing position, the apex (41) protrudes from the printing position to a greater extent than the end point (42).
6. The printer according to claim 1, wherein: The protrusion (4) has two vertices (41) between the two end points (42), and along the path perpendicular to the ribbon supply to the printing position, the portion of the protrusion (4) between the two vertices (41) protrudes from the printing position to the same extent.
7. The printer according to claim 6, wherein: Along the path direction of the ink ribbon supplied to the printing position, the portion of the protrusion (4) between the two vertices (41) is at the same distance from the printing position.
8. The printer according to any one of claims 1 to 7, characterized in that: On the path of the ink ribbon being supplied from the protrusion (4) to the printing position, the ink ribbon does not come into contact with other structures of the printer.
9. The printer according to claim 1, wherein: The printing assembly (3) further comprises a mounting bracket (32), the printing head (31) is mounted on the mounting bracket (32), and the mounting bracket (32) is arranged on the frame (131); The protruding portion (4) is arranged on the mounting bracket (32) or the frame (131).
10. The printer according to claim 9, wherein: The protruding portion (4) is integrally formed with the mounting bracket (32) or the frame body (131).