A carbon tape recovery shaft anti-winding device

Abstract

The utility model discloses a kind of carbon tape recovery shaft anti-winding devices, it is related to printer technical field.The utility model includes carbon tape anti-winding guide roller, both ends of the carbon tape anti-winding guide roller are movably connected with support plate;Tension self-regulating mechanism is provided at the side of the support plate, and the tension self-regulating mechanism includes connecting rod fixedly connected to the side of the support plate.The utility model can automatically adjust the position of carbon tape anti-winding guide roller according to the change of diameter during carbon tape recovery process by setting tension self-regulating mechanism, so that carbon tape always maintains suitable tension, effectively prevents carbon tape relaxation, deviation or winding problem caused by insufficient tension, improves the stability and neatness of carbon tape recovery, and through the cooperation of limiting mechanism and adjusting baffle, the limiting position on carbon tape anti-winding guide roller can be flexibly adjusted according to the width of carbon tape, to prevent carbon tape from shifting horizontally during operation, and further enhance the anti-winding effect.

Description

Technical Field

[0001] This utility model belongs to the field of printer technology, and in particular relates to an anti-winding device for a ribbon recycling shaft. Background Technology

[0002] In the field of thermal transfer printing technology, ribbon, as a common consumable, operates in tandem with label paper. The heat from the printhead transfers the toner from the ribbon onto the label material, completing the printing process. During this process, used ribbons are promptly and neatly wound up by a dedicated recycling shaft to prevent the accumulation and tangling of waste ribbons, which could affect the normal operation of the printer. To ensure that the ribbon is flat and tight during winding, preventing problems such as misalignment, wrinkling, or tangling due to looseness, printing equipment typically incorporates anti-tangling devices along the recycling path.

[0003] Existing anti-tangle devices, when used with a take-up shaft, primarily function to provide a defined path and apply appropriate tension to the running ribbon, ensuring it remains taut and thus guaranteeing winding quality. However, their positions are mostly fixed. At the initial stage of a printing operation, the take-up shaft is empty, and the ribbon tension along the path from the feed shaft to the take-up shaft is at a preset and relatively ideal value. But as the printing continues, the diameter of the ribbon roll on the take-up shaft increases. According to the principles of physics, with a constant take-up shaft rotation speed, an increase in roll diameter leads to an increase in its linear velocity. If the position of the guide or tension device remains fixed and cannot be dynamically adjusted, the effective tension applied to the ribbon will gradually decrease. Consequently, the ribbon is prone to slack, and in severe cases, tangling occurs, affecting ribbon recovery.

[0004] To address this issue, we provide a carbon ribbon recycling shaft anti-winding device. Utility Model Content

[0005] The purpose of this invention is to provide a carbon ribbon recovery shaft anti-winding device, which solves the problem of tension not being adjustable in the existing anti-winding devices by using a combination of a tension self-adjusting mechanism and a limiting mechanism.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0007] This utility model relates to an anti-winding device for a carbon ribbon recycling shaft, comprising an anti-winding guide roller for carbon ribbon, with support plates movably connected to both ends of the guide roller; a tension self-adjusting mechanism is provided on one side of the support plate, the tension self-adjusting mechanism comprising a connecting rod fixedly connected to one side of the support plate, an adjusting box disposed on one side of the support plate, a spring fixedly connected to the front side inside the adjusting box, and a movable plate fixedly connected to the rear side of the spring; a limiting mechanism is provided on the other side of the support plate, the limiting mechanism comprising an adjusting baffle sleeved on the surface of the anti-winding guide roller for carbon ribbon, and a limiting pin disposed on the top of the adjusting baffle.

[0008] The present invention is further configured such that the tension self-adjusting mechanism includes a movable groove opened on one side of the adjustment box, and an openable sealing gasket fixedly connected to one side inside the movable groove.

[0009] The present invention is further configured such that the limiting mechanism includes a first limiting hole opened on the top of the carbon ribbon anti-winding guide roller and a second limiting hole opened on the top of the adjusting baffle.

[0010] The present invention is further configured such that a slider is fixedly connected to one side of the movable plate, and the slider is slidably connected to one side of the inside of the adjustment box.

[0011] The present invention is further configured such that a mounting plate is fixedly connected to one side of the regulating box, and a mounting hole is provided on one side of the mounting plate.

[0012] The present invention is further configured such that a limiting block is fixedly connected to one side inside the adjusting baffle, and the limiting block is slidably connected to the carbon belt anti-winding guide roller.

[0013] The present invention is further configured such that the connecting rod extends through the side away from the support plate into the interior of the adjustment box and is fixedly connected to the movable plate, and the movable plate is in contact with the adjustment box.

[0014] The present invention has the following beneficial effects.

[0015] 1. This utility model, by setting a tension self-adjusting mechanism, can automatically adjust the position of the carbon ribbon anti-winding guide roller according to the change in roll diameter during carbon ribbon recycling, so that the carbon ribbon always maintains a suitable tension, effectively preventing carbon ribbon slack, deviation or winding problems caused by insufficient tension, and improving the stability and uniformity of carbon ribbon recycling. Through the cooperation of the limiting mechanism and the adjusting baffle, the limiting position on the carbon ribbon anti-winding guide roller can be flexibly adjusted according to the width of the carbon ribbon, preventing the carbon ribbon from shifting laterally during operation, further enhancing the anti-winding effect, and is suitable for carbon ribbons of different specifications in different application scenarios.

[0016] 2. This utility model uses a spring and a movable plate inside the adjustment box, along with a connecting rod, to achieve dynamic tension adjustment. The overall structure is compact and easy to install. It is suitable for the ribbon recovery system of various thermal transfer printing equipment. The design of the movable groove and the openable and closable sealing gasket effectively prevents dust and impurities from entering the adjustment box, extending the service life of the mechanism and ensuring stability during long-term operation.

[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0019] Figure 1 This is a perspective view of a carbon ribbon recycling shaft anti-winding device.

[0020] Figure 2 This is a cross-sectional view of the regulating box in a carbon ribbon recovery shaft anti-winding device.

[0021] Figure 3 This is a cross-sectional view of the carbon ribbon anti-winding guide roller in a carbon ribbon recycling shaft anti-winding device.

[0022] Figure 4 This is a diagram showing the removal state of the limit pin in a carbon ribbon recycling shaft anti-winding device.

[0023] Figure 5 This is a cross-sectional view of an adjusting baffle in a carbon ribbon recycling shaft anti-winding device.

[0024] In the attached diagram: 1. Carbon ribbon anti-winding guide roller; 2. Support plate; 3. Tension self-adjusting mechanism; 31. Connecting rod; 32. Adjustment box; 33. Spring; 34. Movable plate; 35. Movable groove; 36. Opening and closing sealing gasket; 4. Limiting mechanism; 41. Adjusting baffle; 42. Limiting pin; 43. First limiting hole; 44. Second limiting hole; 5. Mounting plate. Detailed Implementation

[0025] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Example 1

[0027] Please see Figures 1-5This utility model is a carbon ribbon recycling shaft anti-winding device, including a carbon ribbon anti-winding guide roller 1, with support plates 2 movably connected to both ends of the carbon ribbon anti-winding guide roller 1; a tension self-adjusting mechanism 3 is provided on one side of the support plate 2, the tension self-adjusting mechanism 3 includes a connecting rod 31 fixedly connected to one side of the support plate 2, an adjustment box 32 provided on one side of the support plate 2, a spring 33 fixedly connected to the front side inside the adjustment box 32, and a movable plate 34 fixedly connected to the rear side of the spring 33; a limiting mechanism 4 is provided on the other side of the support plate 2, the limiting mechanism 4 includes an adjusting baffle 41 sleeved on the surface of the carbon ribbon anti-winding guide roller 1, and a limiting pin 42 provided on the top of the adjusting baffle 41.

[0028] In a preferred embodiment of the above, the carbon ribbon anti-winding guide roller 1 is movably connected to the support plate 2 via a bearing. As a guiding component in the carbon ribbon recovery path, the carbon ribbon anti-winding guide roller 1 guides the carbon ribbon to wind smoothly and neatly onto the recovery shaft, preventing the carbon ribbon from shifting, wrinkling, or winding during operation. The support plate 2 supports and fixes the carbon ribbon anti-winding guide roller 1, enabling it to rotate stably. The connecting rod 31 connects the support plate 2 and the movable plate 34, transmitting the tension adjustment force of the spring 33, allowing the guide roller to automatically adjust its position according to changes in the carbon ribbon winding diameter. The adjustment box 32 houses the spring 33 and the movable plate 34, providing structural support. The support and movement space ensure the stability and reliability of tension adjustment. Spring 33 provides continuous tension. As the diameter of the take-up shaft increases, spring 33 gradually contracts, automatically adjusting the position of the guide roller to maintain constant carbon ribbon tension. Movable plate 34 slides in adjustment box 32, and drives connecting rod 31 and support plate 2 to move through the action of spring 33, realizing dynamic adjustment of the guide roller position. Adjustment baffle 41 can move on the surface of carbon ribbon anti-winding guide roller 1. Adjustment baffle 41 is connected to carbon ribbon anti-winding guide roller 1 through limit pin 42. Adjustment baffle 41 is used to limit the lateral position of carbon ribbon on guide roller to prevent carbon ribbon from running off-center.

[0029] Example 2

[0030] Please see Figures 1-5 Based on embodiment 1, the tension self-adjusting mechanism 3 further includes a movable groove 35 opened on one side of the adjusting box 32, an openable sealing gasket 36 fixedly connected to one side inside the movable groove 35, and a limiting mechanism 4 further includes a first limiting hole 43 opened on the top of the carbon ribbon anti-winding guide roller 1, a second limiting hole 44 opened on the top of the adjusting baffle 41, a slider fixedly connected to one side of the movable plate 34, the slider being slidably connected to one side inside the adjusting box 32, an mounting plate 5 fixedly connected to one side of the adjusting box 32, an mounting hole opened on one side of the mounting plate 5, a limiting block fixedly connected to one side inside the adjusting baffle 41, the limiting block being slidably connected to the carbon ribbon anti-winding guide roller 1, and a connecting rod 31 extending into the adjusting box 32 from the side away from the support plate 2 and fixedly connected to the movable plate 34, with the movable plate 34 in contact with the adjusting box 32.

[0031] As a preferred embodiment of the above: the openable and closable sealing gasket 36 is in close contact with the connecting rod 31, the movable groove 35 provides a movement channel for the connecting rod 31 to ensure its smooth movement during adjustment, the openable and closable sealing gasket 36 seals the gap between the movable groove 35 and the connecting rod 31 to prevent dust and impurities from entering the interior of the adjustment box 32 and affecting the movement of the mechanism, the dimensions of the first limiting hole 43 and the second limiting hole 44 are both adapted to the limiting pin 42, the limiting pin 42 is inserted into the first limiting hole 43 and the second limiting hole 44 to fix the position of the adjusting baffle 41 to adapt to carbon ribbons of different widths, a sliding groove adapted to the slider is opened on one side inside the adjustment box 32, and a limiting groove adapted to the limiting block is opened on the surface of the carbon ribbon anti-winding guide roller 1.

[0032] The working principle of this utility model is as follows: The entire device is installed on the ribbon recovery path via the mounting plate 5 and mounting holes. In the initial state, the position of the adjusting baffle 41 is adjusted according to the ribbon width, causing the limiting pin 42 to insert into the corresponding first limiting hole 43 and second limiting hole 44 to restrict the lateral movement of the ribbon. During the ribbon recovery process, as the ribbon roll diameter on the recovery shaft increases, the tension of the ribbon on the ribbon anti-winding guide roller 1 changes. At this time, the spring 33 in the tension self-adjusting mechanism 3 pulls the movable plate 34 according to the tension change, which drives the support plate 2 and the ribbon anti-winding guide roller 1 to move as a whole through the connecting rod 31, achieving dynamic adjustment of the ribbon tension. This process continues to ensure that the ribbon is always taut during the winding process, avoiding entanglement caused by uneven tension or slack.

[0033] The cooperation between the adjusting baffle 41 and the limiting block further restricts the lateral displacement of the carbon belt, ensuring that the carbon belt runs smoothly on the guide roller, thereby comprehensively improving the reliability and uniformity of carbon belt recycling.

[0034] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A carbon ribbon recycling shaft anti-winding device, comprising a carbon ribbon anti-winding guide roller (1), characterized in that: Both ends of the carbon ribbon anti-winding guide roller (1) are movably connected to support plates (2); a tension self-adjusting mechanism (3) is provided on one side of the support plate (2), the tension self-adjusting mechanism (3) includes a connecting rod (31) fixedly connected to one side of the support plate (2), an adjustment box (32) provided on one side of the support plate (2), a spring (33) fixedly connected to the front side inside the adjustment box (32), and a movable plate (34) fixedly connected to the rear side of the spring (33); a limiting mechanism (4) is provided on the other side of the support plate (2), the limiting mechanism (4) includes an adjusting baffle (41) sleeved on the surface of the carbon ribbon anti-winding guide roller (1), and a limiting pin (42) provided on the top of the adjusting baffle (41).

2. The carbon ribbon recycling shaft anti-winding device according to claim 1, characterized in that: The tension self-adjusting mechanism (3) also includes a movable groove (35) opened on one side of the adjustment box (32) and an openable sealing gasket (36) fixedly connected to one side of the movable groove (35).

3. The carbon ribbon recycling shaft anti-winding device according to claim 1, characterized in that: The limiting mechanism (4) further includes a first limiting hole (43) opened on the top of the carbon ribbon anti-winding guide roller (1) and a second limiting hole (44) opened on the top of the adjusting baffle (41).

4. The carbon ribbon recycling shaft anti-winding device according to claim 1, characterized in that: A slider is fixedly connected to one side of the movable plate (34), and the slider is slidably connected to one side of the inside of the adjustment box (32).

5. The carbon ribbon recycling shaft anti-winding device according to claim 1, characterized in that: The regulating box (32) is fixedly connected to one side of the mounting plate (5), and the mounting plate (5) has a mounting hole on one side.

6. The carbon ribbon recycling shaft anti-winding device according to claim 1, characterized in that: A limiting block is fixedly connected to one side of the inside of the adjusting baffle (41), and the limiting block is slidably connected to the carbon belt anti-winding guide roller (1).

7. The carbon ribbon recycling shaft anti-winding device according to claim 1, characterized in that: The connecting rod (31) extends through the side away from the support plate (2) into the interior of the regulating box (32) and is fixedly connected to the movable plate (34), with the movable plate (34) in contact with the regulating box (32).

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