Printer label paper stripping structure

Abstract

The utility model relates to a printer label paper stripping structure which comprises a shell and a stripping plate, the stripping plate is fixed on the front side of the shell and located below a printing outlet of the shell, the front side of the shell is provided with a groove, a turning cover is rotatably installed in the groove, a pressing roller is rotatably installed on the turning cover, a shaft rod A is rotatably installed in the shell, and a driving roller is fixedly sleeved on the shaft rod A; a driving device used for driving the shaft rod A to rotate is arranged in the shell, when the turning cover covers the interior of the groove, the outer wall of the pressing roller makes contact with the outer wall of the driving roller, and the pressing roller is located below the front side of the driving roller. The pressing roller and the driving roller are arranged in a staggered mode, when backing paper is pulled and conveyed, the pressing roller and the driving roller are arranged up and down and make contact with different heights of the backing paper, then tension gradient is formed, traction force is overlapped in the vertical direction, and effective traction tension can be formed on a backing paper conveying path. It is ensured that the backing paper cannot slip or deviate during conveying, and the label stripping stability is improved.

Description

Technical Field

[0001] This utility model relates to the field of printer technology, and in particular to a label paper peeling structure for printers. Background Technology

[0002] A thermal printer is a device that prints by heating the coating of thermal paper with a thermal printhead, causing a chemical reaction that reveals the color of the coating. It does not require ink or toner and has advantages such as fast printing speed, low noise, simple structure, and relatively low cost. It is widely used in scenarios such as printing supermarket receipts, convenience store labels, express delivery waybills, and various reports in the medical industry. However, the printed content has a limited shelf life and is prone to fading due to factors such as high temperature and light exposure.

[0003] Traditional thermal printers lack a peel-off function, requiring the label to be peeled off from the backing paper after printing, which is time-consuming and laborious. Existing technology includes printers with peel-off labels. In these printers, the drive roller and pressure roller are on the same plane, and the backing paper passes between them. The pressure from the drive roller and pressure roller on the backing paper is concentrated at the same height, resulting in insufficient driving tension and making the backing paper prone to slippage or shifting, thus affecting the label peel-off effect. Utility Model Content

[0004] The purpose of this utility model is to provide a label paper peeling structure for printers, which effectively solves the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution.

[0006] A label paper peeling structure for a printer includes a housing and a peeling plate. The peeling plate is fixed to the front side of the housing and located below the printing exit of the housing. The front side of the housing has a groove, and a flip cover is rotatably installed in the groove. A pressure roller is rotatably installed on the flip cover. A shaft A is rotatably installed in the housing, and a drive roller is fixedly mounted on the shaft A. A drive device for driving the shaft A to rotate is provided in the housing. When the flip cover is closed inside the groove, the outer wall of the pressure roller contacts the outer wall of the drive roller, and the pressure roller is located below the front side of the drive roller.

[0007] As can be seen, the staggered arrangement of the pressure roller and the drive roller, when traction and conveying the base paper, with the pressure roller and the drive roller arranged one above the other, contacting different heights on the base paper, thereby forming a tension gradient. The traction force is superimposed vertically upward, which can form an effective traction tension on the base paper conveying path, ensuring that the base paper will not slip or deviate during conveying, and improving the stability of label peeling.

[0008] Furthermore, a shaft D is rotatably installed between the inner walls on both sides of the groove. The shaft D passes through the flip cover and is fixedly connected to the flip cover.

[0009] Furthermore, a shaft B is rotatably mounted on the flip cover, and a pressure roller is fixedly mounted on the shaft B.

[0010] Furthermore, when the flap closes into the groove, a paper inlet is formed between the bottom of the flap and the bottom of the peeling plate to guide the bottom paper between the drive roller and the pressure roller.

[0011] Furthermore, when the flap closes into the groove, a paper outlet is formed between the flap and the inner wall of the groove, which is used to guide the bottom paper out to the outside of the housing.

[0012] Furthermore, the drive device includes a drive motor, a drive gear, driven gear A, driven gear B, driven gear C, and driven gear D. One end of shaft A extends through to the outside of the housing and is fixedly mounted with driven gear C. The drive motor is fixed inside the housing, and the drive gear is fixed on the output shaft of the drive motor. Shaft C is rotatably mounted inside the housing, and driven gear A and driven gear D are fixedly mounted on shaft C. Driven gear B is rotatably mounted on the housing. Driven gear B meshes with driven gear C and driven gear A respectively, and driven gear D meshes with the drive gear.

[0013] Furthermore, anti-slip textures are evenly distributed on the outer wall of the pressure roller.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows.

[0015] The pressure roller and drive roller are arranged in a staggered manner. When the backing paper is being pulled and conveyed, the pressure roller and drive roller are arranged one above the other and contact different heights on the backing paper, thereby forming a tension gradient. The traction force is superimposed vertically upward, which can form an effective traction tension on the backing paper conveying path, ensuring that the backing paper will not slip or deviate during conveying, and improving the stability of label peeling. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a partial cross-sectional view of the present invention;

[0018] Figure 3 This is a schematic diagram of the installation of the pressure roller structure in this utility model;

[0019] Figure 4 This is a partial structural diagram of the present invention;

[0020] Figure 5 for Figure 4 Enlarged schematic diagram of the structure at point A in the middle.

[0021] In the diagram: 1. Housing; 101. Groove; 11. Printing exit; 2. Peeling plate; 3. Drive roller; 31. Shaft A; 4. Pressure roller; 41. Shaft B; 5. Drive unit; 51. Drive motor; 52. Drive gear; 53. Shaft C; 54. Driven gear A; 55. Driven gear B; 56. Driven gear C; 57. Driven gear D; 6. Shaft D; 7. Flip cover; 71. Paper inlet; 72. Paper outlet. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-5 The present invention provides a label paper peeling structure for a printer, comprising a housing 1 and a peeling plate 2. The peeling plate 2 is fixed on the front side of the housing 1 and located below the printing outlet 11 of the housing 1. The front side of the housing 1 has a groove 101, and a flip cover 7 is rotatably installed in the groove 101. The flip cover 7 can be rotated open and closed. A pressure roller 4 is rotatably installed on the flip cover 7. A shaft A31 is rotatably installed in the housing 1, and a drive roller 3 is fixedly mounted on the shaft A31. A drive device 5 for driving the shaft A31 to rotate is provided in the housing 1. When the flip cover 7 is closed inside the groove 101, the outer wall of the pressure roller 4 contacts the outer wall of the drive roller 3.

[0024] When it is necessary to peel off the label, first turn the flip cover 7 to open, making room for operation in the groove 101. Then, the bottom paper led out of the groove 101 goes around the front side of the peeling plate 2 and bends downward. After passing the front side of the drive roller 3, it is finally led out from the bottom of the groove 101.

[0025] Then, the flip cover 7 is rotated to close, and the flip cover 7 drives the pressing roller 4 to move synchronously, thereby pressing the bottom paper onto the drive roller 3;

[0026] While printing out the paper, the drive device 5 works to drive the shaft A31 and drive the drive roller 3 to rotate. The rotating drive roller 3 cooperates with the pressure roller 4 to pull and convey the bottom paper, so that the bottom paper is always in a tight state.

[0027] When the backing paper bends at the tip of the peeling plate 2, the label is more flexible than the backing paper and does not bend with it, thus detaching from the backing paper. The staff can then remove the label, completing the entire label peeling process.

[0028] When the flip cover 7 is closed in the groove 101, a paper inlet 71 is formed between the bottom of the flip cover 7 and the bottom of the peeling plate 2, so that the bottom paper can be guided into the housing 1 and then into the space between the drive roller 3 and the pressing roller 4. A paper outlet 72 is formed between the flip cover 7 and the inner wall of the groove 101, which is used to guide the bottom paper out to the outside of the housing 1.

[0029] In addition, the pressure roller 4 is located below the front side of the drive roller 3, so that the pressure roller 4 and the drive roller 3 are staggered. When the backing paper is being pulled and conveyed, the pressure roller 4 and the drive roller 3 are arranged one above the other and contact different heights on the backing paper, thereby forming a tension gradient. The traction force is superimposed vertically upward, which can form an effective traction tension on the backing paper conveying path, ensuring that the backing paper will not slip or deviate during conveying, and improving the stability of label peeling.

[0030] Specifically, a shaft D6 is rotatably installed between the inner walls on both sides of the groove 101. The shaft D6 passes through the flip cover 7 and is fixedly connected to the flip cover 7. The shaft D6 provides the flip cover 7 with the ability to rotate and open. A shaft B41 is rotatably installed on the flip cover 7. The pressure roller 4 is fixedly mounted on the shaft B41. The shaft B41 provides the pressure roller 4 with the ability to rotate, so that the pressure roller 4 can rotate adaptably when pulling and conveying the bottom paper.

[0031] In addition, a latching element is provided on the flip cover 7. The latching element is used to engage with the housing 1 to lock the closed flip cover 7. The latching element also has an unlocking effect so that the flip cover 7 can be opened. The latching element adopts existing technology. The specific structure and working principle will not be described in detail and are not shown in the attached drawings.

[0032] like Figure 4 and Figure 5 As shown, the drive device 5 includes a drive motor 51, a drive gear 52, a driven gear A54, a driven gear B55, a driven gear C56, and a driven gear D57. One end of the shaft A31 extends through to the outside of the housing 1 and is fixedly mounted with the driven gear C56. The drive motor 51 is fixed inside the housing 1. The drive gear 52 is fixed on the output shaft of the drive motor 51. The shaft C53 is rotatably mounted inside the housing 1. The driven gears A54 and D57 are fixedly mounted on the shaft C53. The driven gear B55 is rotatably mounted on the housing 1. The driven gear B55 meshes with the driven gears C56 and A54 respectively. The driven gear D57 meshes with the drive gear 52.

[0033] The drive motor 51 operates, and its output shaft drives the drive gear 52 to rotate. The rotating drive gear 52 meshes with and drives the driven gear D57, which in turn drives the shaft C53 and the driven gear A54 to rotate. The rotating driven gear A54 meshes with and drives the driven gear B55 to rotate. The rotating driven gear B55 meshes with and drives the driven gear C56, which in turn drives the shaft A31 and the drive roller 3 to rotate, thereby providing a stable drive for the rotation of the drive roller 3.

[0034] The structural parameters of each gear are based on existing technology and will not be described in detail here.

[0035] In addition, the outer wall of the pressure roller 4 is evenly covered with anti-slip texture, which can increase the friction between it and the backing paper and improve the stability of driving the backing paper.

[0036] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art. Furthermore, the specific structure, model and coefficient index of all its components are its own technology. As long as it can achieve its beneficial effect, it can be implemented. Therefore, it will not be described in detail.

[0037] The above is a detailed description of the present invention in conjunction with specific embodiments, and it should not be construed that the specific embodiments of the present invention are limited to these descriptions. For those skilled in the art, any equivalent substitutions or obvious modifications made without departing from the concept of the present invention, and which have the same performance or use, should be considered as falling within the patent protection scope defined by the submitted claims.

Claims

1. A label paper peeling structure for a printer, comprising a housing (1) and a peeling plate (2), characterized in that: The peeling plate (2) is fixed to the front side of the housing (1) and located below the printing outlet (11) of the housing (1); The front side of the housing (1) has a groove (101), and a flip cover (7) is rotatably installed in the groove (101). The clamping roller (4) is rotatably mounted on the flip cover (7); A shaft A (31) is rotatably mounted inside the housing (1), and a drive roller (3) is fixedly mounted on the shaft A (31). A drive device (5) for driving the shaft A (31) to rotate is provided inside the housing (1). When the flap (7) is closed inside the groove (101), the outer wall of the pressing roller (4) contacts the outer wall of the driving roller (3), and the pressing roller (4) is located below the front side of the driving roller (3).

2. The printer label paper peeling structure according to claim 1, characterized in that: A shaft D (6) is rotatably installed between the inner walls on both sides of the groove (101). The shaft D (6) passes through the flip cover (7) and is fixedly connected to the flip cover (7).

3. The printer label paper peeling structure according to claim 1, characterized in that: The flip cover (7) is rotatably mounted with a shaft B (41), and the pressing roller (4) is fixedly mounted on the shaft B (41).

4. The printer label paper peeling structure according to claim 1, characterized in that: When the flap (7) is closed in the groove (101), a paper inlet (71) is formed between the bottom of the flap (7) and the bottom of the peeling plate (2) to guide the bottom paper between the drive roller (3) and the pressure roller (4).

5. The printer label paper peeling structure according to claim 1, characterized in that: When the flap (7) is closed in the groove (101), a paper outlet (72) is formed between the flap (7) and the inner wall of the groove (101) to guide the bottom paper out to the outside of the housing (1).

6. The printer label paper peeling structure according to claim 1, characterized in that: The drive device (5) includes a drive motor (51), a drive gear (52), a driven gear A (54), a driven gear B (55), a driven gear C (56), and a driven gear D (57). One end of the shaft A (31) extends through to the outside of the housing (1) and is fixedly mounted with the driven gear C (56). The drive motor (51) is fixed inside the housing (1), and the drive gear (52) is fixed on the output shaft of the drive motor (51). A shaft C (53) is rotatably mounted inside the housing (1), and the driven gear A (54) and the driven gear D (57) are fixedly mounted on the shaft C (53). A driven gear B (55) is rotatably mounted on the housing (1), and the driven gear B (55) meshes with the driven gear C (56) and the driven gear A (54) respectively; The driven gear D (57) meshes with the driving gear (52).

7. The printer label paper peeling structure according to claim 1, characterized in that: The outer wall of the pressing roller (4) is evenly covered with anti-slip texture.

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