Paper positioning mechanism

Abstract

This application provides a paper positioning mechanism disposed at the paper output position of a printer. The paper positioning mechanism includes a paper output holder, a transmission assembly, two linkage assemblies, and two clamping members. The transmission assembly and the two linkage assemblies are disposed on the paper output holder. A guide rail is provided on the top side of the paper output holder. The two linkage assemblies are respectively disposed on both sides of the transmission assembly. The two clamping members are disposed on the guide rail and respectively connected to the two linkage assemblies. When the printer outputs a piece of paper, the transmission assembly drives the two linkage assemblies to rotate in opposite directions, thereby causing the two clamping members to move along the guide rail and move closer to each other to clamp the paper, or move further apart to release the paper. Therefore, this application can effectively prevent label paper from shifting during alignment.

Description

Technical Field

[0001] This application relates to a paper positioning mechanism, and more particularly to a paper positioning mechanism for a printer. Background Technology

[0002] Existing roll label printers require alignment calibration when outputting labels. Generally, the label paper is retracted a short distance during alignment to ensure accurate positioning. However, during this process, the label paper is prone to shifting due to unstable transmission, improper structural design, or insufficient accuracy of the alignment mechanism. This can lead to incorrect printing positions, wasted labels, and even affect subsequent automatic labeling processes.

[0003] Therefore, improving the stability and accuracy of label paper during the alignment process through structural design improvements to overcome the aforementioned defects has become one of the most important issues to be addressed in this technical field. Utility Model Content

[0004] The technical problem to be solved by this application is to provide a paper positioning mechanism for a printer, so as to solve the technical problem in the prior art that the paper is prone to shifting during the alignment process and causing alignment error.

[0005] To address the aforementioned technical problems, one technical solution adopted in this application is to provide a paper positioning mechanism, which is disposed at the paper output position of a printer. The paper positioning mechanism includes a paper output holder, a transmission assembly, two linkage assemblies, and two clamping members. The transmission assembly and the two linkage assemblies are disposed on the paper output holder. A guide rail is provided on the top side of the paper output holder. The two clamping members are disposed on the guide rail and are respectively connected to the two linkage assemblies. When the printer outputs a piece of paper, the transmission assembly drives the two linkage assemblies to rotate in opposite directions, thereby causing the two clamping members to move along the guide rail and move closer to each other to clamp the paper, or move further apart to release the paper.

[0006] Preferably, the paper output holder has an inner side and an outer side, with the inner side facing the inside of the printer and the outer side facing the outside of the printer, and the transmission assembly and two linkage assemblies are disposed inside the printer.

[0007] Preferably, the paper output holder is further provided with a first guide hole and two guide slots. The first guide hole is located between the two guide slots and extends through the inner and outer sides. The transmission component includes a lever and a rack. The lever is connected to the rack and is disposed in the first guide hole. The rack is located between the two linkage components.

[0008] Preferably, the transmission assembly further includes a fixed plate, the rack is fixed to the fixed plate, the fixed plate includes two second guide holes, and the rack is located between the two second guide holes; wherein, the paper output seat is provided with two guide posts on its inner side, and the two guide posts are respectively disposed in the two second guide holes.

[0009] Preferably, each linkage assembly includes a ratchet and a connecting rod, with one end of the connecting rod connected to the ratchet and the other end connected to a corresponding clamping member. The two ratchets of the two linkage assemblies mesh with the rack.

[0010] Preferably, each ratchet component has a convex shaft, and the two convex shafts are respectively disposed in two guide grooves.

[0011] Preferably, the lever is used to push the rack upward, which in turn drives the two ratchet members to rotate, and drives the two connecting rods to rotate about the two ratchet members as axes in a direction away from each other, thereby causing the two clamping members to move away from each other.

[0012] Preferably, while the rack drives the two ratchet components to rotate, it also further pushes the two ratchet components to move upward along the two guide grooves respectively.

[0013] Preferably, the lever pushes the rack downward by flicking it, the rack further drives the two ratchet members to rotate, and further drives the two connecting rods to rotate about the two ratchet members as axes in a direction closer to each other, thereby driving the two clamping members to approach each other.

[0014] Preferably, while the rack drives the two ratchet components to rotate, it also further pushes the two ratchet components to move downwards along the two guide grooves respectively.

[0015] One of the advantages of this application is that the paper positioning mechanism provided can be set at the paper output position of the printer. When the label paper is being aligned during the output process, the paper positioning mechanism can drive two linkage components through the transmission component, and further synchronously drive two clamping members to jointly hold the label paper. This effectively prevents the label paper from shifting during alignment, ensuring accurate positioning, further improving print quality and alignment accuracy, and avoiding printing errors or material waste caused by shifting.

[0016] The other effects and embodiments of this application are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of a printer according to an embodiment of this application;

[0019] Figure 2 This is a schematic diagram of the paper positioning mechanism according to an embodiment of this application;

[0020] Figure 3 This is another schematic diagram of the paper positioning mechanism according to an embodiment of this application;

[0021] Figure 4 This is a schematic diagram of a paper output holder according to an embodiment of this application;

[0022] Figure 5 This is a schematic diagram of the transmission assembly according to an embodiment of this application;

[0023] Figure 6 This is a schematic diagram of the linkage component and clamping member according to an embodiment of this application;

[0024] Figure 7 This is a schematic diagram of the meshing and linkage components of the transmission assembly according to an embodiment of this application;

[0025] Figure 8 This is a cross-sectional view of the printer outputting paper according to an embodiment of this application.

[0026] Figure 9 This is a schematic diagram of the paper positioning mechanism in an embodiment of this application when positioning paper. Detailed Implementation

[0027] The following specific embodiments illustrate the implementation of the "paper positioning mechanism" disclosed in this application. Those skilled in the art can understand the advantages and effects of this application from the content disclosed in this specification. This application can be implemented or applied through other different specific embodiments, and various details in this specification can also be modified and changed based on different viewpoints and applications without departing from the concept of this application. Furthermore, the accompanying drawings of this application are for simple illustration only and are not depictions of actual dimensions, as stated in advance. The following embodiments will further describe the relevant technical content of this application in detail, but the disclosed content is not intended to limit the scope of protection of this application.

[0028] It should be understood that while terms such as "first," "second," and "third" may be used in this document to describe various components, these components should not be limited by these terms. These terms are primarily used to distinguish one component from another. Furthermore, the term "or" as used in this document should, depending on the context, include any combination of one or more related items listed.

[0029] Example

[0030] See Figure 1 As shown, Figure 1 This is a schematic diagram of a printer according to an embodiment of this application. This application provides a paper positioning mechanism M, which is installed at the paper output position of a printer D. For example, printer D is a label printer, mainly used for outputting label paper.

[0031] See Figure 2 and Figure 3 As shown, Figure 2 and Figure 3 This is a schematic diagram of the paper positioning mechanism according to an embodiment of this application from different perspectives. The paper positioning mechanism M includes a paper output seat 1, a transmission assembly 2, two linkage assemblies 3, and two clamping members 4. The transmission assembly 2 and the two linkage assemblies 3 are all disposed on the paper output seat 1. A guide rail 11 is provided on the top side of the paper output seat 1. The two clamping members 4 are disposed on the guide rail 11, and the two clamping members 4 are respectively connected to the two linkage assemblies 3. The paper output seat 1 has an inner side surface 101 and an outer side surface 102. Further cooperation is possible. Figure 1 As shown, when the paper positioning mechanism M is installed on the printer D, the inner side 101 faces the inside of the printer D (or, in other words, is located inside the printer D), and the outer side 102 faces the outside of the printer D (or, in other words, is located outside the printer D). Furthermore, the transmission assembly 2 and the two linkage assemblies 3 are both located inside the printer D.

[0032] See Figure 4 As shown, Figure 4 This is a schematic diagram of a paper output holder according to an embodiment of this application. The paper output holder 1 also has a first guide hole 12, two guide grooves 13, and two guide posts 14. The first guide hole 12 is located between the two guide grooves 13, and the two guide grooves 13 are located between the two guide posts 14. The first guide hole 12 penetrates through the inner side surface 101 and the outer side surface 102. The two guide grooves 13 and the two guide posts 14 are all disposed on the inner side surface 101.

[0033] See Figure 5 As shown, Figure 5This is a schematic diagram of the transmission assembly according to an embodiment of this application. The transmission assembly 2 includes a lever 21, a rack 22, and a fixing plate 23. The rack 22 is disposed on the fixing plate 23, and the lever 21 is connected to the rack 22. When the transmission assembly 2 is installed on the paper output holder 1, the lever 21 is disposed in the first guide hole 12 and exposed on the outer side 102 of the paper output holder 1, so that the user can move the transmission assembly 2 by moving the lever 21. Further, the fixing plate 23 is provided with two second guide holes 230, and the rack 22 is located between the two second guide holes 230. It should be noted that in this application, the rack 22 has a double tooth surface structure, that is, the rack 22 has tooth surfaces on both opposite sides, and can simultaneously interact with two linkage components 3 (see...) respectively disposed on its two sides. Figure 6 ) mesh with each other. Through the double-tooth surface design, the rack 22 can realize the linkage mechanism on both sides (i.e. Figure 6 The synchronous drive of the two linkage components 3) ensures that the movements on the left and right sides are consistent, which helps to improve the stability and clamping accuracy of the paper positioning mechanism M.

[0034] See Figure 6 As shown, Figure 6 This is a schematic diagram of the linkage assembly and clamping member according to an embodiment of this application. Each linkage assembly 3 includes a ratchet member 31 and a connecting rod 32. The connecting rod 32 has a first end 321 and a second end 322. The first end 321 is fixedly connected to the ratchet member 31, and the second end 322 is connected to one of the corresponding clamping members 4. In addition, the ratchet member 31 is provided with a convex shaft 311. Furthermore, the connecting rod 32 is also provided with an extension arm 323 at the position of the second end 322. The extension arm 323 extends out from the position of the second end 322 and together with the second end 322 forms a U-shaped member.

[0035] Continue reading Figure 6 The clamping member 4 may include a C-shaped hook 41 and a connecting arm 42 connected to the bottom side of the C-shaped hook 41. When the clamping member 4 is installed to the corresponding linkage assembly 3, the connecting arm 42 can extend into the U-shaped member provided on the linkage assembly 3 and be positioned between the second end 322 and the extension arm 323. Subsequently, a fixing pin (not shown in the figure) passes through the second end 322, the connecting arm 42 and the extension arm 323 in sequence, firmly connecting the three together. In this way, the clamping member 4 is actually pivotally connected to the connecting rod 32 of the linkage assembly 3 with the pin as the pivot, and can rotate relative to the linkage assembly 3.

[0036] In addition, such as Figure 3As shown, it should be noted that before the clamping component 4 is installed to the corresponding linkage component 3, its connecting arm 42 will first pass through the guide rail 11 of the paper output seat 1 and then pivotally connect to the connecting rod 32. In this way, the clamping component 4 can be guided and restricted by the guide rail 11, ensuring that it has a specific action path and stable support during movement, which helps to improve the accuracy of the clamping action and the smoothness of the overall mechanism operation.

[0037] See Figure 4 and Figure 7 As shown, Figure 7 This is a schematic diagram of the transmission assembly meshing and linkage assembly according to an embodiment of this application. Figure 7 This diagram primarily illustrates the actuating relationship between the clamping component 4, the linkage assembly 3, and the transmission assembly 2. For ease of illustration, the structure of the paper output holder 1 is omitted from the diagram. When the clamping component 4, the linkage assembly 3, and the transmission assembly 2 are actually assembled into the paper output holder 1, the convex shafts 311 located on the two ratchet components 31 will be respectively positioned within the two guide grooves 13 provided in the paper output holder 1, allowing the ratchet components 31 to slide along the guide grooves 13. Figure 7 In the diagram, the two guide slots 13 are represented by dashed boxes to indicate their reference positions and relative relationships, and from... Figure 7 It can be seen that the two ratchet parts 31 of the two linkage components 3 can mesh with the rack 22 (because the rack 22 has a double tooth surface structure).

[0038] See Figures 7 to 9 As shown, Figure 8 This is a cross-sectional view of the printer outputting paper according to an embodiment of this application. Figure 9 This is a schematic diagram of the paper positioning mechanism in this embodiment of the application when positioning paper. When the printer outputs paper P, the operator (i.e., the user) can operate the transmission component 2, that is, push the rack 22 up and down by moving the lever 21, thereby driving the two linkage components 3 to rotate in opposite directions. Through this transmission action, the two linkage components 3 will drive the two clamping members 4 to move synchronously along the guide rail 11 on the paper output seat 1, thereby moving closer to each other to clamp the paper, or moving away from each other to release the paper, realizing the clamping and releasing functions.

[0039] In detail, when the lever 21 is moved upward, the rack 22 moves upward and simultaneously drives the two ratchet members 31 to rotate in opposite directions. This rotation causes the two connecting rods 32 to rotate about the two ratchet members 31 as their axes of rotation, moving them away from each other. This causes the two clamping members 4 to move to both sides along the guide rail 11 and move away from each other, thus releasing the paper P they are holding. Simultaneously, the upward movement of the rack 22 further pushes the two ratchet members 31 upward along their respective guide grooves 13, ensuring the synchronicity and stability of the overall movement.

[0040] On the other hand, when lever 21 is moved downwards, rack 22 moves downwards, similarly driving the two ratchet members 31 to rotate. At this time, the two connecting rods 32 rotate about the two ratchet members 31 as their central axes, moving towards each other, thereby driving the two clamping members 4 to move towards each other along guide rail 11 and close together to clamp the output paper P. At the same time, the downward movement of rack 22 also drives the two ratchet members 31 to move downwards along their guide grooves 13, making the overall clamping action more stable and smooth.

[0041] It should also be noted that, as Figure 3 and Figure 4 As shown, when the clamping component 4, the linkage component 3, and the transmission component 2 are all assembled onto the paper output holder 1, the two guide posts 14 provided on the paper output holder 1 will be inserted into the two second guide holes 230 provided on the transmission component 2, respectively. This ensures that the transmission component 2 is correctly positioned during assembly, guarantees stable sliding along a predetermined trajectory during operation, and also contributes to the alignment and secure installation of the overall mechanism, improving the collaborative operating efficiency and structural stability between different components.

[0042] Beneficial effects of the embodiments

[0043] In summary, the paper positioning mechanism M provided in this application can achieve stable clamping and release of paper, effectively improving alignment accuracy and operational efficiency during the printing process. Specifically, when paper P (i.e., label paper) is output from printer D for alignment correction, the two clamping members 4 can accurately clamp both sides of paper P through the synchronous drive of the transmission component 2 and the two linkage components 3 (see...). Figure 9 This mechanism uses a clamping force to create a stable gripping force, ensuring that the paper P does not slip or shift during alignment. Therefore, the paper positioning mechanism M provided in this application effectively solves the problem of paper P easily shifting during alignment in the prior art, leading to printing errors, and further improves printing quality and label positioning accuracy.

[0044] The embodiments and / or implementation methods described above are merely preferred embodiments and / or implementation methods for implementing the technology of this application, and are not intended to limit the implementation methods of the technology of this application in any way. Any person skilled in the art may make some modifications or alterations to other equivalent embodiments without departing from the scope of the technical means disclosed in this application, but these should still be regarded as the technology or embodiments that are substantially the same as those of this application.

Claims

1. A paper positioning mechanism, disposed at the paper output position of a printer, characterized in that, The paper positioning mechanism includes: A paper output holder, wherein a guide rail is provided on the top side of the paper output holder; A transmission component is disposed at the paper output holder; Two linkage components are disposed at the paper output holder; and Two clamping members are disposed on the guide rail and respectively connected to the two linkage components; When the printer outputs a piece of paper, the transmission component drives the two linkage components to rotate in opposite directions, thereby causing the two clamping members to move along the guide rail to move closer to each other to clamp the paper, or to move away from each other to release the paper.

2. The paper positioning mechanism according to claim 1, characterized in that, The paper output tray has an inner side and an outer side, the inner side facing the interior of the printer and the outer side facing the exterior of the printer, and the transmission assembly and the two linkage assemblies are disposed inside the printer.

3. The paper positioning mechanism according to claim 2, characterized in that, The paper output holder is also provided with a first guide hole and two guide slots. The first guide hole is located between the two guide slots and penetrates the inner side and the outer side. The transmission component includes a lever and a rack. The lever is connected to the rack and is disposed in the first guide hole. The rack is located between the two linkage components.

4. The paper positioning mechanism according to claim 3, characterized in that, The transmission assembly further includes a fixed plate, the rack is fixed to the fixed plate, the fixed plate includes two second guide holes, and the rack is located between the two second guide holes; wherein, the paper output seat is provided with two guide posts on the inner side, and the two guide posts are respectively disposed in the two second guide holes.

5. The paper positioning mechanism according to claim 4, characterized in that, Each of the linkage components includes a ratchet member and a link, one end of the link being connected to the ratchet member and the other end of the link being connected to one of the corresponding clamping members; wherein, the two ratchet members of the two linkage components mesh with the rack.

6. The paper positioning mechanism according to claim 5, characterized in that, Each of the ratchet components has a convex shaft, and the two convex shafts are respectively disposed in the two guide grooves.

7. The paper positioning mechanism according to claim 6, characterized in that, The lever pushes the rack upward by being turned, and the rack further drives the two ratchet members to rotate, and drives the two connecting rods to rotate about the two ratchet members as axes in a direction away from each other, thereby causing the two clamping members to move away from each other.

8. The paper positioning mechanism according to claim 7, characterized in that, While the rack drives the two ratchet components to rotate, it also further pushes the two ratchet components to move upward along the two guide grooves respectively.

9. The paper positioning mechanism according to claim 6, characterized in that, The lever pushes the rack downward by flicking it, and the rack further drives the two ratchet members to rotate, and further drives the two connecting rods to rotate about the two ratchet members as axes in a direction closer to each other, thereby driving the two clamping members to approach each other.

10. The paper positioning mechanism according to claim 9, characterized in that, While the rack drives the two ratchet components to rotate, it also further pushes the two ratchet components to move downwards along the two guide grooves respectively.

Images