Paper feeding positioning mechanism of printer

Abstract

The utility model relates to the technical field of printer paper feeding, and discloses a printer paper feeding positioning mechanism which comprises a lower shell, the top end of the lower shell is rotatably connected with an upper shell, the top end of the upper shell is provided with a display panel, the left side of the top end of the upper shell is fixedly connected with a button, the top end of the lower shell is fixedly connected with a positioning mechanism, and the top end of the lower shell is fixedly connected with the display panel. The left side of the top end of the lower shell is fixedly connected with a locking mechanism; the positioning mechanism comprises two mounting blocks, rotating rods are arranged at the top ends of the two mounting blocks in a matched mode, anti-shaking assemblies are slidably connected to the outer portions of the rotating rods, and storage grooves are formed in the sides, close to each other, of the lower shell and the upper shell. According to the utility model, the material paper can be effectively prevented from shaking in the printing process, the material paper with different widths can be adapted, the flexibility of the equipment is greatly improved, the possibility of paper jamming is reduced, and the situation that the printing task is interrupted due to paper jamming is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of printer paper feeding, in particular to a printer paper feeding positioning mechanism. Background Art

[0002] Printers are an indispensable output device in modern office equipment, and label printers are one such device. They can print text, graphics, barcodes, QR codes, and other information onto a variety of label materials, such as paper, polyester, and vinyl. These labels are used in a wide range of applications, including product identification, inventory management, asset management, document classification, and postal parcels. Labels typically have specific size and format requirements to carry accurate information. A paper feed positioning mechanism precisely guides the label paper into the print area, ensuring the printed content is accurately positioned on the label.

[0003] Most printer paper loading systems usually consist of a storage slot, a printing upper shell, a printing lower shell, a paper output hole, a rotating rod and other structures. When installing the material, the material is placed on the rotating rod and then placed in the storage slot. At this time, the shell is closed so that the upper shell and the lower shell are closed to complete the positioning of the material.

[0004] In the prior art, some printers usually use a predetermined positioning slot when positioning the material paper, or directly install the printer on a rotating rod. The predetermined positioning slot is difficult to adapt to material papers of different widths, reducing the flexibility of the equipment, while directly installing the printer on a rotating rod will cause the material paper to shake during operation, directly resulting in a deviation in the position of the printed content on the label, and will also increase the possibility of paper jams, interrupting printing tasks and reducing work efficiency. Therefore, in response to the above shortcomings, a paper positioning mechanism for a printer is proposed. Utility Model Content

[0005] The purpose of the present utility model is to solve the shortcomings existing in the prior art and to propose a printer paper positioning mechanism, which aims to improve the problems in the prior art such as poor compatibility of the positioning groove and easy shaking of the paper on the rotating rod, thereby causing printing position deviation, high risk of paper jam and low work efficiency.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A printer paper positioning mechanism comprises a lower housing, the top of the lower housing being rotatably connected to an upper housing, the top of the upper housing being provided with a display panel, a button being fixedly connected to the left side of the top of the upper housing, a positioning mechanism being fixedly connected to the top of the lower housing, and a locking mechanism being fixedly connected to the left side of the top of the lower housing;

[0008] The positioning mechanism includes two mounting blocks, the top ends of the two mounting blocks are fitted with a rotating rod, the outside of the rotating rod is slidably connected to an anti-shake component, storage slots are provided on the adjacent sides of the lower shell and the upper shell, and paper outlet holes are provided on the left sides of the lower shell and the upper shell, and a clamping component is fixedly connected to the bottom end of the top paper outlet hole.

[0009] Furthermore, the locking mechanism includes two limiting rods, a receiving hole is opened inside the top end of the limiting rod, a strong spring is arranged inside the receiving hole, and a locking block is slidably connected to the inner wall of one side of the limiting rod, and the adjacent sides of the two locking blocks are fixedly connected to the limiting plate.

[0010] Furthermore, the anti-shake assembly includes two baffles, the outer portions of the baffles are slidably connected to the inner portion of the rotating rod, the outer portion of the rotating rod is sleeved with a telescopic spring, and the outer portion of the rotating rod is slidably connected to two extrusion plates.

[0011] Furthermore, one end of the telescopic spring is fixedly connected to one side of the baffle, and the other end of the telescopic spring is fixedly connected to one side of the extrusion plate.

[0012] Furthermore, the clamping assembly includes multiple rubber rods, the top ends of the multiple rubber rods are fixedly connected to the bottom ends of the paper outlet holes at the top ends, the bottom ends of the multiple rubber rods are fixedly connected to a connecting plate, and the bottom end of the connecting plate is rotatably connected to a roller.

[0013] Furthermore, both the front and rear sides of the upper shell are provided with engaging holes, and the outer portion of the engaging block is engaged with the inner portion of the engaging hole.

[0014] Furthermore, two limiting holes are provided on the left side of the bottom end of the upper shell, and the outer portion of the limiting rod is slidably connected to the inner portion of the limiting hole.

[0015] Furthermore, the outer portion of the limiting plate is slidably connected to the inner portion of the accommodating hole, and one side of the engaging block is in contact with the inner portion of the limiting hole.

[0016] The utility model has the following beneficial effects:

[0017] 1. In this utility model, when paper is placed on the rotating rod, the telescopic spring automatically adjusts the position of the squeeze plate according to the paper's width, ensuring that the paper is stably clamped on the rotating rod. This effectively prevents the paper from shaking during printing, can accommodate paper of varying widths, greatly improves the flexibility of the device, and reduces the possibility of paper jams, which can interrupt printing tasks.

[0018] 2. In the utility model, when the material paper is being loaded, the engaging block is pressed to disengage from the engaging hole. This process causes the strong spring to be squeezed and generates a rebound force, so that after the paper is loaded, the shell can be quickly locked without the need for complicated additional operations or tool assistance, reducing the operation steps and time, significantly improving the operator's work efficiency, and making the paper loading process smoother and more efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a three-dimensional diagram of a paper positioning mechanism for a printer proposed in the present invention;

[0020] Figure 2 This is a schematic diagram of the lower shell structure of a printer paper positioning mechanism proposed by the present invention;

[0021] Figure 3 for Figure 2 A magnified view of point A in the figure;

[0022] Figure 4 for Figure 2 Enlarged view of point B in FIG.

[0023] Figure 5 for Figure 2 Enlarged view of point C in the figure.

[0024] Legend:

[0025] 1. Lower shell; 2. Upper shell; 3. Display panel; 4. Button; 5. Mounting block; 6. Rotating rod; 7. Baffle; 8. Telescopic spring; 9. Squeeze plate; 10. Storage slot; 11. Paper outlet hole; 12. Rubber rod; 13. Connecting plate; 14. Roller; 15. Engaging hole; 16. Limiting hole; 17. Limiting rod; 18. Accommodating hole; 19. Power spring; 20. Engaging block; 21. Limiting plate. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] Reference Figures 1 to 3, the utility model provides an embodiment: a printer paper positioning mechanism, including a lower shell 1, the lower shell 1 serves as the basic support part of the entire printer paper positioning mechanism, and its top is rotatably connected to the upper shell 2. This rotatable connection method allows the upper shell 2 to be flexibly opened and closed relative to the lower shell 1, which is convenient for the placement and replacement of material paper, etc. A display panel 3 is provided at the top of the upper shell 2, and the display panel 3 can be used to display relevant working status information of the printer, such as the remaining paper amount, printing task progress, equipment fault prompts, etc., so that the operator can intuitively understand the operation status of the printer. A button 4 is fixedly connected to the left side of the top of the upper shell 2, and a positioning mechanism is fixedly connected to the top of the lower shell 1. The two mounting blocks 5 in this positioning mechanism play a key bearing and positioning role. The rotating rod 6 that fits in with their tops provides a basic support axis for the placement of material paper. The anti-shake component that is slidably connected to the outside of the rotating rod 6 includes two baffles 7, and the baffle 7 is externally slidably connected to the inside of the rotating rod 6;

[0028] The telescopic spring 8, sleeved on the outside of the rotating rod 6, and the two extrusion plates 9, which are slidably connected to the outside of the rotating rod 6, work together. When a sheet of material is placed on the rotating rod 6, the sheet of material interacts with the extrusion plates 9, which slide outside the rotating rod 6 and compress the telescopic spring 8. The telescopic spring 8 automatically adjusts its degree of expansion and contraction based on the width of the sheet of material, driving the extrusion plates 9 to move to an appropriate position, thereby stably clamping the sheet of material and preventing it from shaking during printing, thereby achieving precise positioning of sheet of material of different widths. Storage slots 10 are provided on adjacent sides of the lower housing 1 and the upper housing 2. Storage slots 10 provide a certain amount of storage space for the sheet of material. When the printer is not working or paused, the sheet of material can be partially placed in the storage slots 10 to protect and organize the paper.

[0029] Reference Figure 1 、 Figure 2 and Figure 4 The top left side of the lower shell 1 is fixedly connected to a locking mechanism, which is used to ensure the stability of the upper shell 2 and the lower shell 1 in the closed state. A paper outlet 11 is provided on the left side of both the lower shell 1 and the upper shell 2. The clamping assembly fixedly connected to the bottom end of the top paper outlet 11 includes a plurality of rubber rods 12. The top ends of these rubber rods 12 are fixedly connected to the bottom end of the top paper outlet 11, and the bottom ends are fixedly connected to a connecting plate 13. The bottom end of the connecting plate 13 is internally connected to a roller 14 for rotation. When the printer starts printing, the paper moves toward the paper outlet 11 under the drive of the internal transmission mechanism. When it reaches the paper outlet 11, the paper first contacts the connecting plate 13 supported by the rubber rod 12. The connecting plate 13 presses the paper to prevent it from loosening and jamming. As the paper continues to move, the roller 14 that contacts and slides relative to the paper begins to rotate, effectively reducing the friction between the paper and the paper outlet 11, so that the paper can be output smoothly, reducing the possibility of paper jams, and ensuring smooth printing.

[0030] Reference Figure 1 、 Figure 2 and Figure 5 , the front and rear sides of the upper shell 2 are provided with a locking hole 15, and two limiting holes 16 are provided on the left side of the bottom end. The outside of the limiting rod 17 is slidably connected to the inside of the limiting hole 16, and the top of the two limiting rods 17 in the locking mechanism is provided with a receiving hole 18. A strong spring 19 is provided inside the receiving hole 18. A locking block 20 is slidably connected to the inner wall of one side of the limiting rod 17. One side of the locking block 20 is in contact with the inside of the limiting hole 16 and its outside is engaged with the inside of the locking hole 15. The two locking blocks 20 are fixedly connected to the limiting plate 21 on one side, and the limiting plate 21 is slidably connected to the inside of the receiving hole 18. The operator presses the locking block 20, and the locking block 20 slides on the inner wall of one side of the limit rod 17 and disengages from the locking hole 15. This process squeezes the strong spring 19 to cause it to produce compression deformation and store elastic potential energy, so that the upper shell 2 can be opened around the rotating connection. After the material paper is placed, the upper shell 2 is rotated to close. The rebound force of the strong spring 19 pushes the locking block 20 to slide in the opposite direction on the inner wall of one side of the limit rod 17 and re-engage the locking hole 15 to achieve quick locking, reduce the operation steps and time, and make the paper loading process smoother and more efficient.

[0031] Working Principle: First, the operator presses the locking block 20, which slides along the inner wall of the retaining rod 17, releasing the locking block 20 from the locking hole 15. During this process, the sliding of the locking block 20 compresses the powerful spring 19 within the receiving hole 18, causing the powerful spring 19 to compress and store elastic potential energy. As the locking block 20 exits the locking hole 15, the upper housing 2 pivots open around its pivoting connection with the lower housing 1, preparing for the placement of paper material.

[0032] When the paper is placed on the rotating rod 6 and contacts the anti-shake assembly that slides on the outside of the rotating rod 6, the width of the paper will affect the anti-shake assembly. Specifically, the paper pushes the two squeeze plates 9, causing them to slide outside the rotating rod 6. The sliding of the squeeze plates 9 in turn squeezes the telescopic spring 8, which deforms under the force. Depending on the width of the paper, the telescopic spring 8 automatically adjusts its own degree of expansion and contraction, driving the squeeze plates 9 connected to it to move to the appropriate position. Ultimately, the paper is stably clamped on the rotating rod 6, achieving adaptive positioning for paper of different widths and effectively preventing the paper from shaking during subsequent printing.

[0033] After the paper material is placed, the upper shell 2 is rotated so that it gradually closes downward with the lower shell 1. At this time, the strong spring 19 squeezed in the receiving hole 18 uses its stored elastic potential energy to generate a rebound force, which pushes the locking block 20, causing the locking block 20 to slide in the opposite direction on the inner wall of one side of the limit rod 17, so that the locking block 20 is re-engaged in the locking hole 15 of the upper shell 2, achieving rapid locking of the shell. The entire process does not require complicated additional operations or tool assistance, reducing the operation steps and time, making the paper loading process smoother and more efficient.

[0034] When the printer starts printing, the paper gradually moves toward the paper outlet 11 driven by the internal transmission mechanism. When the paper reaches the paper outlet 11, the clamping assembly connected to the bottom of the top paper outlet 11 begins to function. Multiple rubber rods 12 are connected to the connecting plate 13. The paper first contacts the connecting plate 13. The connecting plate 13, supported by the rubber rods 12, exerts a certain degree of compression on the paper to prevent the paper from being loose and jammed. At the same time, as the paper continues to move, the roller 14 connected to the bottom of the connecting plate 13 begins to rotate. The paper contacts and slides relative to the roller 14. The rotation of the roller 14 can reduce the friction between the paper and the paper outlet 11, allowing the paper to be smoothly output from the paper outlet 11, effectively reducing the possibility of paper jams and the interruption of printing tasks due to paper jams, thereby ensuring the smooth completion of printing work.

[0035] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A paper positioning mechanism for a printer, comprising a lower housing (1), characterized in that: The top of the lower shell (1) is rotatably connected to the upper shell (2), the top of the upper shell (2) is provided with a display panel (3), the left side of the top of the upper shell (2) is fixedly connected to a button (4), the top of the lower shell (1) is fixedly connected to a positioning mechanism, and the left side of the top of the lower shell (1) is fixedly connected to a locking mechanism; The positioning mechanism comprises two mounting blocks (5), the top ends of the two mounting blocks (5) are fitted with a rotating rod (6), the outer portion of the rotating rod (6) is slidably connected to an anti-shake component, the lower shell (1) and the upper shell (2) are both provided with a storage slot (10) on the adjacent side, the lower shell (1) and the upper shell (2) are both provided with a paper outlet hole (11) on the left side, and the bottom end of the top paper outlet hole (11) is fixedly connected to a pressing component.

2. A printer paper positioning mechanism according to claim 1, characterized in that: The locking mechanism comprises two limiting rods (17), a receiving hole (18) is provided inside the top end of the limiting rod (17), a strong spring (19) is provided inside the receiving hole (18), a locking block (20) is slidably connected to the inner wall of one side of the limiting rod (17), and the adjacent sides of the two locking blocks (20) are fixedly connected to the limiting plate (21).

3. The printer paper positioning mechanism according to claim 1, characterized in that: The anti-shake assembly comprises two baffles (7), the outer portion of the baffles (7) is slidably connected to the inner portion of the rotating rod (6), the outer portion of the rotating rod (6) is sleeved with a telescopic spring (8), and the outer portion of the rotating rod (6) is slidably connected to two extrusion plates (9).

4. A printer paper positioning mechanism according to claim 3, characterized in that: One end of the telescopic spring (8) is fixedly connected to one side of the baffle (7), and the other end of the telescopic spring (8) is fixedly connected to one side of the extrusion plate (9).

5. The printer paper positioning mechanism according to claim 1, characterized in that: The pressing assembly comprises a plurality of rubber rods (12), the top ends of the plurality of rubber rods (12) are fixedly connected to the bottom ends of the paper outlet holes (11) at the top ends, the bottom ends of the plurality of rubber rods (12) are fixedly connected to a connecting plate (13), and the bottom end of the connecting plate (13) is rotatably connected to a roller (14) inside.

6. The printer paper positioning mechanism according to claim 2, characterized in that: The upper shell (2) is provided with engaging holes (15) on both the front and rear sides, and the outside of the engaging block (20) is engaged with the inside of the engaging hole (15).

7. The paper positioning mechanism for a printer according to claim 2, characterized in that: Two limiting holes (16) are provided on the left side of the bottom end of the upper shell (2), and the outer portion of the limiting rod (17) is slidably connected to the inner portion of the limiting hole (16).

8. The printer paper positioning mechanism according to claim 7, characterized in that: The outside of the limiting plate (21) is slidably connected to the inside of the accommodating hole (18), and one side of the engaging block (20) is in contact with the inside of the limiting hole (16).

Images