An automatic guide belt deviation rectifying mechanism and a printer

Abstract

The present invention discloses an automatic guide belt deviation correction mechanism, comprising a fixed frame, an offset structure, and an adjustment shaft. The offset structure is rotatably arranged on the fixed frame, and the upper portion of the offset structure rotates in conjunction with the lower portion of the offset structure when being pushed by the guide belt deviation; at least one of the two ends of the adjustment shaft is radially movable, and the radially movable end of the adjustment shaft moves radially when being rotated and squeezed by the lower portion of the offset structure. The present invention also discloses a printer comprising an automatic guide belt deviation correction mechanism. Since the upper portion of the offset structure rotates in conjunction with the lower portion of the offset structure when being pushed by the guide belt deviation, the radially movable end of the adjustment shaft moves radially when being rotated and squeezed by the lower portion of the offset structure. Therefore, when the guide belt deviates from its normal working position, the upper portion of the offset structure is pushed, causing the lower portion of the offset structure to rotate, so that the guide belt generates a lateral force when moving on the adjustment shaft, thereby pulling the guide belt to its normal working position.

Description

Technical Field

[0001] The present invention relates to the technical field of printers, and in particular to an automatic guide belt deviation correction mechanism and a printer. Background Art

[0002] When the printer is performing printing operations, the printed parts are usually transported by means of a printing guide belt, which is stretched by two front and rear support shafts, wherein the two support shafts are an active support shaft and a driven support shaft respectively. The active support shaft is driven by a driving component to rotate, thereby driving the printing guide belt to move.

[0003] During movement, the printing blanket can deviate from its normal operating position, affecting printing quality. In the prior art, an adjustment roller is typically used to adjust the printing blanket back to its normal operating position. The adjustment roller is initially installed perpendicular to the direction of movement of the printing blanket. When the printing blanket deviates from its normal operating position, the adjustment roller is adjusted so that it is not perpendicular to the direction of movement. This creates a lateral force when the printing blanket moves on the adjustment roller, pulling the printing blanket back to its normal operating position.

[0004] When the adjustment roller is not perpendicular to the movement direction of the printing guide belt, the usual adjustment methods include manual adjustment screw method and electric adjustment method; among them, the manual adjustment screw method drives one side of the adjustment roller to move, which is difficult to adjust to the exact position, the adjustment accuracy is not high, and it is time-consuming and labor-intensive; although the electric adjustment method can be accurately adjusted, its structure is complex and the cost is high, and the electronic components are easily affected by the environment. Summary of the Invention

[0005] The present invention aims to solve at least one of the technical problems in the above-mentioned technology to a certain extent. To this end, one object of the present invention is to provide an automatic guide belt deviation correction mechanism, which realizes automatic guide belt deviation correction with a simple structure and low cost, and the adjustment is not affected by the environment.

[0006] A second object of the present invention is to provide a printer comprising an automatic guide belt deflection correction mechanism, which realizes automatic guide belt deflection correction, has a simple structure and low cost, and the adjustment is not affected by the environment.

[0007] To achieve the above-mentioned object, a first embodiment of the present invention provides a guide belt automatic deviation correction mechanism, comprising:

[0008] Fixed frame;

[0009] An offset structure, wherein the offset structure is rotatably disposed on the fixed frame, and an upper portion of the offset structure rotates together with a lower portion of the offset structure when the upper portion of the offset structure is pushed by the guide belt;

[0010] An adjustment shaft, at least one of the two ends of the adjustment shaft is radially movable, and the radially movable end of the adjustment shaft moves radially when being rotated and squeezed by the lower part of the offset structure.

[0011] According to an embodiment of the present invention, an automatic guide belt deviation-correcting mechanism employs a mechanism in which the upper portion of the offset structure, when pushed by the guide belt, causes the lower portion of the offset structure to rotate, and the radially movable end of the adjustment shaft moves radially when pressed by the rotation of the lower portion of the offset structure. Therefore, when the guide belt deviates from its normal operating position, the upper portion of the offset structure is pushed, causing the lower portion of the offset structure to rotate. The rotation of the lower portion of the offset structure presses the radially movable end of the adjustment shaft radially, causing the adjustment shaft to deviate from the perpendicular direction of the guide belt's movement. In other words, the adjustment shaft and the guide belt's movement directions are not perpendicular, resulting in a lateral force generated when the guide belt moves on the adjustment shaft, pulling the guide belt back to its normal operating position.

[0012] After the guide belt returns to its normal operating position, the offset structure, unaffected by the belt's deflection, automatically returns to its initial position due to gravity. The lower portion of the offset structure no longer presses against the radially movable end of the adjustment shaft, and the adjustment shaft, acting upon the belt's tension, partially returns to its original position, achieving dynamic equilibrium. This enables automatic guide belt deviation correction, resulting in a simple, low-cost structure and unaffected adjustment.

[0013] In addition, the automatic guide belt deviation correction mechanism according to the above embodiment of the present invention may also have the following additional technical features:

[0014] Furthermore, both ends of the adjustment shaft are respectively arranged on the fixing brackets in a radially movable manner, and the offset structure can be rotatably arranged on each of the fixing brackets.

[0015] Furthermore, the radially movable end of the adjustment shaft is provided with an inclined surface, and the inclined surface drives the radially movable end of the adjustment shaft to move radially when being rotated and squeezed by the lower part of the offset structure.

[0016] Furthermore, the offset structure is a lever, the lever is pivotally connected to the fixing frame, the upper portion of the lever is opposite to the guide belt, and the upper portion of the lever rotates together with the lower portion of the lever when being pushed by the guide belt offset.

[0017] Furthermore, the lever is rotatably mounted on the fixing frame via an inlaid solid lubricating bearing.

[0018] Furthermore, a buffer rod is provided on the side of the upper portion of the lever opposite to the fixing frame.

[0019] Furthermore, a slope is provided at the lower portion of the offset structure, and the slope rotates along with the lower portion of the offset structure to squeeze the radially movable end of the adjustment shaft to drive it to move radially.

[0020] Furthermore, a guide rod is provided on the fixing frame, and a radially movable end of the adjustment shaft is provided on the guide rod.

[0021] To achieve the above-mentioned object, a second embodiment of the present invention provides a printer, including the automatic guide belt deflection correction mechanism, wherein the automatic guide belt deflection correction mechanism includes:

[0022] Fixed frame;

[0023] An offset structure, wherein the offset structure is rotatably disposed on the fixed frame, and an upper portion of the offset structure rotates together with a lower portion of the offset structure when the upper portion of the offset structure is pushed by the guide belt;

[0024] An adjustment shaft, at least one of the two ends of the adjustment shaft is radially movable, and the radially movable end of the adjustment shaft moves radially when being rotated and squeezed by the lower part of the offset structure.

[0025] In a printer according to an embodiment of the present invention, the upper portion of the offset structure, when pushed by the guide belt, causes the lower portion of the offset structure to rotate, and the radially movable end of the adjustment shaft moves radially when pressed by the rotation of the lower portion of the offset structure. Therefore, when the guide belt deviates from its normal operating position, the upper portion of the offset structure is pushed, causing the lower portion of the offset structure to rotate. The rotation of the lower portion of the offset structure presses the radially movable end of the adjustment shaft radially, causing the adjustment shaft to deviate from the perpendicular direction of the guide belt's movement. In other words, the adjustment shaft is not perpendicular to the direction of movement of the guide belt. This generates a lateral force when the guide belt moves on the adjustment shaft, pulling the guide belt back to its normal operating position.

[0026] After the guide belt returns to its normal operating position, the offset structure, unaffected by the belt's deflection, automatically returns to its initial position due to gravity. The lower portion of the offset structure no longer presses against the radially movable end of the adjustment shaft, and the adjustment shaft, acting upon the belt's tension, partially returns to its original position, achieving dynamic equilibrium. This enables automatic guide belt deviation correction, resulting in a simple, low-cost structure and unaffected adjustment.

[0027] In addition, a printer according to the above embodiment of the present invention may also have the following additional technical features:

[0028] Furthermore, it also includes a frame, on which the fixing frame and the guide belt driven to rotate by the power component are installed. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 2 is a schematic structural diagram of an automatic guide belt deviation-correcting mechanism according to an embodiment of the present invention;

[0030] Figure 2 for Figure 1 A partial enlarged view of

[0031] Figure 32. It is a front view of the automatic guide belt deviation-correcting mechanism according to an embodiment of the present invention;

[0032] Figure 4 A side view of an automatic guide belt deviation-correcting mechanism according to an embodiment of the present invention;

[0033] Figure 5 A top view of an automatic guide belt deviation-correcting mechanism according to an embodiment of the present invention;

[0034] Figure 6 Schematic diagram of the adjustment process of the automatic guide belt deviation correction mechanism according to an embodiment of the present invention.

[0035] Label Description

[0036] Fixed frame 1 First fixed frame 11

[0037] Second fixing frame 12 offset structure 2

[0038] First offset structure 21 Second offset structure 22

[0039] Adjustment axis 3 First adjustment axis 31

[0040] Second adjustment shaft 32 inclined surface 33

[0041] Guide belt 4 Inlaid solid lubricating bearing 5

[0042] Buffer rod 6 guide rod 7. DETAILED DESCRIPTION

[0043] The following describes embodiments of the present invention in detail, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and are not to be construed as limiting the present invention.

[0044] Example 1

[0045] like Figures 1 to 6 As shown, a guide belt automatic deviation-correcting mechanism disclosed in Embodiment 1 of the present invention includes a fixed frame 1, an offset structure 2, and an adjustment shaft 3. The offset structure 2 is rotatably mounted on the fixed frame 1. When the upper portion of the offset structure 2 is pushed by the guide belt 4, the lower portion of the offset structure 2 rotates in conjunction with the upper portion of the offset structure 2. At least one of the ends of the adjustment shaft 3 is radially movable. The radially movable end of the adjustment shaft 3 moves radially when the lower portion of the offset structure 2 rotates and presses. The adjustment shaft 3 may be an adjustment roller.

[0046] Because the upper portion of the offset structure 2 is pushed and squeezed by the guide belt 4, causing the lower portion of the offset structure 2 to rotate, the radially movable end of the adjustment shaft 3 moves radially as it is squeezed and squeezed by the rotation of the lower portion of the offset structure 2. Therefore, when the guide belt 4 deviates from its normal operating position, it pushes the upper portion of the offset structure 2, causing the lower portion of the offset structure 2 to rotate. The rotation of the lower portion of the offset structure 2 compresses the radially movable end of the adjustment shaft 3, causing the adjustment shaft 3 to deviate from the perpendicular direction of the movement of the guide belt 4. In other words, the adjustment shaft 3 and the movement directions of the guide belt 4 are not perpendicular. As the guide belt 4 moves on the adjustment shaft 3, a lateral force is generated, pulling the guide belt 4 back to its normal operating position.

[0047] like Figure 6 As shown, after the guide belt 4 returns to its normal operating position, the offset structure 2 is no longer pushed by the guide belt 4 and automatically returns to its initial position due to gravity. The lower portion of the offset structure 2 no longer presses the radially movable end of the adjustment shaft 3, and the adjustment shaft 3 is partially reset by the tension of the guide belt 4, achieving dynamic balance. This achieves automatic deviation correction of the guide belt 4, with a simple and low-cost structure and adjustment that is unaffected by the environment.

[0048] In this example, both ends of the adjustment shaft 3 are radially movable on the fixed frame 1, and each fixed frame 1 is rotatably provided with an offset structure 2. When the adjustment shaft 3 is radially movablely connected to the fixed frame 1, a guide rod 7 can be provided on the fixed frame 1, with the radially movable end of the adjustment shaft 3 being provided on the guide rod 7.

[0049] like Figure 6 As shown, when the guide belt 4 deviates from its normal operating position and deflects toward one end of the adjustment shaft 3, it pushes against the upper portion of the deflection structure 2, causing the lower portion of the deflection structure 2 to rotate. This rotation of the lower portion of the deflection structure 2 compresses the radially movable end of the adjustment shaft 3 radially, causing the adjustment shaft 3 to deviate from the direction of motion of the guide belt 4. That is, the directions of motion of the adjustment shaft 3 and the guide belt 4 are not perpendicular. This causes the guide belt 4 to generate a lateral force as it moves on the adjustment shaft 3, pulling the guide belt 4 to its normal operating position. After the guide belt 4 returns to its normal operating position, the deflection structure 2 is no longer pushed by the deflection of the guide belt 4 and automatically returns to its initial position due to gravity. The lower portion of the deflection structure 2 no longer compresses the radially movable end of the adjustment shaft 3, and the adjustment shaft 3 is partially reset by the tension of the guide belt 4.

[0050] Similarly, when the guide belt 4 deviates from its normal operating position and deflects toward the other end of the adjustment shaft 3, it pushes against the upper portion of the deflection structure 2, causing the lower portion of the deflection structure 2 to rotate. This rotation of the lower portion of the deflection structure 2 compresses the radially movable end of the adjustment shaft 3, causing the adjustment shaft 3 to deviate from the perpendicular direction of the movement of the guide belt 4. That is, the movement directions of the adjustment shaft 3 and the guide belt 4 are not perpendicular. This causes the guide belt 4 to generate a lateral force when moving on the adjustment shaft 3, pulling the guide belt 4 to its normal operating position. After the guide belt 4 returns to its normal operating position, the deflection structure 2 is no longer pushed by the deflection of the guide belt 4 and automatically returns to its initial position due to gravity. The lower portion of the deflection structure 2 no longer compresses the radially movable end of the adjustment shaft 3, and the adjustment shaft 3 is partially reset by the tension of the guide belt 4.

[0051] In this way, the guide belt 4 reciprocates between the offset structures 2 at both ends of the adjustment shaft 3 to form a dynamic balance, thereby achieving automatic deviation correction of the guide belt 4. The structure is simple and the cost is low, and the adjustment is not affected by the environment.

[0052] Of course, a first offset structure 21 may also be provided on the first fixing frame 11 on one side of the guide belt 4, with one end of a first adjustment shaft 31 radially movably connected to the first fixing frame 11 and the other end of the first adjustment shaft 31 fixed, thereby adjusting the offset on one side of the guide belt 4. Simultaneously, a second offset structure 22 may also be provided on the second fixing frame 12 on the other side of the guide belt 4, with one end of a second adjustment shaft 32 radially movably connected to the second fixing frame 12 and the other end of the second adjustment shaft 32 fixed, thereby adjusting the offset on one side of the guide belt 4.

[0053] In this example, the radially movable end of the adjustment shaft 3 is provided with an inclined surface 33. This inclined surface 33, when pressed by the rotational compression of the lower portion of the offset structure 2, drives the radially movable end of the adjustment shaft 3 to move radially. When the guide belt 4 deviates from its normal operating position toward one end of the adjustment shaft 3, it pushes against the upper portion of the offset structure 2, causing the lower portion of the offset structure 2 to rotate. The rotation of the lower portion of the offset structure 2 compresses the inclined surface 33 of the adjustment shaft 3, thereby driving the radially movable end of the adjustment shaft 3 to move radially. This causes the adjustment shaft 3 to deviate from the direction of movement of the guide belt 4, i.e., the adjustment shaft 3 and the direction of movement of the guide belt 4 are not perpendicular. This creates a lateral force when the guide belt 4 moves on the adjustment shaft 3, pulling the guide belt 4 back to its normal operating position.

[0054] In this example, the offset structure 2 can be a lever pivotally connected to the fixed frame 1. The upper portion of the lever opposes the guide belt 4. When the upper portion of the lever is pushed by the offset of the guide belt 4, the lower portion of the lever rotates in conjunction with the upper portion of the lever. When the guide belt 4 deviates from its normal operating position and deviates toward one end of the adjustment shaft 3, the upper portion of the lever is pushed, causing the lower portion of the lever to rotate. The rotation of the lower portion of the lever compresses the radially movable end of the adjustment shaft 3 to move radially, causing the adjustment shaft 3 to deviate from the perpendicular direction of movement of the guide belt 4. In other words, the adjustment shaft 3 and the direction of movement of the guide belt 4 are not perpendicular. This causes the guide belt 4 to generate a lateral force when moving on the adjustment shaft 3, pulling the guide belt 4 to its normal operating position.

[0055] In this example, the lever is rotatably mounted on the fixed frame 1 via an inlaid solid lubricating bearing 5. The inlaid solid lubricating bearing 5 allows the lever to rotate more smoothly and is convenient for adjustment.

[0056] In this example, a buffer rod 6 is provided on the upper side of the lever opposite to the fixing frame 1. When the guide belt 4 deflects greatly and the impact force on the lever is large, it plays a buffering role so as not to damage the lever.

[0057] Of course, an inclined surface can also be provided on the lower portion of the offset structure 2. This inclined surface rotates with the lower portion of the offset structure 2, squeezing the radially movable end of the adjustment shaft 3 and driving radial movement. When the guide belt 4 deviates from its normal operating position and deviates toward one end of the adjustment shaft 3, it pushes against the upper portion of the offset structure 2, causing the lower portion of the offset structure 2 to rotate. The inclined surface of the lower portion of the offset structure 2 rotates and squeezes the adjustment shaft 3, thereby driving radial movement of the radially movable end of the adjustment shaft 3. This causes the adjustment shaft 3 to deviate from the direction of movement of the guide belt 4, i.e., the direction of movement of the adjustment shaft 3 and the guide belt 4 are not perpendicular. This creates a lateral force when the guide belt 4 moves on the adjustment shaft 3, pulling the guide belt 4 back to its normal operating position.

[0058] Example 2

[0059] like Figures 1 to 6 As shown, a printer disclosed in a second embodiment of the present invention includes a guide belt automatic deflection correction mechanism and a frame. The guide belt automatic deflection correction mechanism includes a fixed frame 1, an offset structure 2, and an adjustment shaft 3. The offset structure 2 is rotatably mounted on the fixed frame 1. When the upper portion of the offset structure 2 is deflected and pushed by the guide belt 4, the lower portion of the offset structure 2 rotates in conjunction with the offset structure 2. At least one end of the adjustment shaft 3 is radially movable. The radially movable end of the adjustment shaft 3 moves radially when the lower portion of the offset structure 2 rotates and presses. The fixed frame 1 and the guide belt 4, which is driven to rotate by a power component, are mounted on the frame. The adjustment shaft 3 may be an adjustment roller.

[0060] Because the upper portion of the offset structure 2 is pushed and squeezed by the guide belt 4, causing the lower portion of the offset structure 2 to rotate, the radially movable end of the adjustment shaft 3 moves radially as it is squeezed and squeezed by the rotation of the lower portion of the offset structure 2. Therefore, when the guide belt 4 deviates from its normal operating position, it pushes the upper portion of the offset structure 2, causing the lower portion of the offset structure 2 to rotate. The rotation of the lower portion of the offset structure 2 compresses the radially movable end of the adjustment shaft 3, causing the adjustment shaft 3 to deviate from the perpendicular direction of the movement of the guide belt 4. In other words, the adjustment shaft 3 and the movement directions of the guide belt 4 are not perpendicular. As the guide belt 4 moves on the adjustment shaft 3, a lateral force is generated, pulling the guide belt 4 back to its normal operating position.

[0061] In this example, both ends of the adjustment shaft 3 are radially movable on the fixed frame 1, and each fixed frame 1 is rotatably provided with an offset structure 2. When the adjustment shaft 3 is radially movablely connected to the fixed frame 1, a guide rod 7 can be provided on the fixed frame 1, with the radially movable end of the adjustment shaft 3 being provided on the guide rod 7.

[0062] like Figure 6 As shown, when the guide belt 4 deviates from its normal operating position and deflects toward one end of the adjustment shaft 3, it pushes against the upper portion of the deflection structure 2, causing the lower portion of the deflection structure 2 to rotate. This rotation of the lower portion of the deflection structure 2 compresses the radially movable end of the adjustment shaft 3 radially, causing the adjustment shaft 3 to deviate from the direction of motion of the guide belt 4. That is, the directions of motion of the adjustment shaft 3 and the guide belt 4 are not perpendicular. This causes the guide belt 4 to generate a lateral force as it moves on the adjustment shaft 3, pulling the guide belt 4 to its normal operating position. After the guide belt 4 returns to its normal operating position, the deflection structure 2 is no longer pushed by the deflection of the guide belt 4 and automatically returns to its initial position due to gravity. The lower portion of the deflection structure 2 no longer compresses the radially movable end of the adjustment shaft 3, and the adjustment shaft 3 is partially reset by the tension of the guide belt 4.

[0063] Similarly, when the guide belt 4 deviates from its normal operating position and deflects toward the other end of the adjustment shaft 3, it pushes against the upper portion of the deflection structure 2, causing the lower portion of the deflection structure 2 to rotate. This rotation of the lower portion of the deflection structure 2 compresses the radially movable end of the adjustment shaft 3, causing the adjustment shaft 3 to deviate from the perpendicular direction of the movement of the guide belt 4. That is, the movement directions of the adjustment shaft 3 and the guide belt 4 are not perpendicular. This causes the guide belt 4 to generate a lateral force when moving on the adjustment shaft 3, pulling the guide belt 4 to its normal operating position. After the guide belt 4 returns to its normal operating position, the deflection structure 2 is no longer pushed by the deflection of the guide belt 4 and automatically returns to its initial position due to gravity. The lower portion of the deflection structure 2 no longer compresses the radially movable end of the adjustment shaft 3, and the adjustment shaft 3 is partially reset by the tension of the guide belt 4.

[0064] In this way, the guide belt 4 reciprocates between the offset structures 2 at both ends of the adjustment shaft 3 to form a dynamic balance, thereby achieving automatic deviation correction of the guide belt 4. The structure is simple and the cost is low, and the adjustment is not affected by the environment.

[0065] Of course, a first offset structure 21 may also be provided on the first fixing frame 11 on one side of the guide belt 4, with one end of a first adjustment shaft 31 radially movably connected to the first fixing frame 11 and the other end of the first adjustment shaft 31 fixed, thereby adjusting the offset on one side of the guide belt 4. Simultaneously, a second offset structure 22 may also be provided on the second fixing frame 12 on the other side of the guide belt 4, with one end of a second adjustment shaft 32 radially movably connected to the second fixing frame 12 and the other end of the second adjustment shaft 32 fixed, thereby adjusting the offset on one side of the guide belt 4.

[0066] In this example, the radially movable end of the adjustment shaft 3 is provided with an inclined surface 33. This inclined surface 33, when pressed by the rotational compression of the lower portion of the offset structure 2, drives the radially movable end of the adjustment shaft 3 to move radially. When the guide belt 4 deviates from its normal operating position toward one end of the adjustment shaft 3, it pushes against the upper portion of the offset structure 2, causing the lower portion of the offset structure 2 to rotate. The rotation of the lower portion of the offset structure 2 compresses the inclined surface 33 of the adjustment shaft 3, thereby driving the radially movable end of the adjustment shaft 3 to move radially. This causes the adjustment shaft 3 to deviate from the direction of movement of the guide belt 4, i.e., the adjustment shaft 3 and the direction of movement of the guide belt 4 are not perpendicular. This creates a lateral force when the guide belt 4 moves on the adjustment shaft 3, pulling the guide belt 4 back to its normal operating position.

[0067] In this example, the offset structure 2 can be a lever pivotally connected to the fixed frame 1. The upper portion of the lever opposes the guide belt 4. When the upper portion of the lever is pushed by the offset of the guide belt 4, the lower portion of the lever rotates in conjunction with the upper portion of the lever. When the guide belt 4 deviates from its normal operating position and deviates toward one end of the adjustment shaft 3, the upper portion of the lever is pushed, causing the lower portion of the lever to rotate. The rotation of the lower portion of the lever compresses the radially movable end of the adjustment shaft 3 to move radially, causing the adjustment shaft 3 to deviate from the perpendicular direction of movement of the guide belt 4. In other words, the adjustment shaft 3 and the direction of movement of the guide belt 4 are not perpendicular. This causes the guide belt 4 to generate a lateral force when moving on the adjustment shaft 3, pulling the guide belt 4 to its normal operating position.

[0068] In this example, the lever is rotatably mounted on the fixed frame 1 via an inlaid solid lubricating bearing 5. The inlaid solid lubricating bearing 5 allows the lever to rotate more smoothly and is convenient for adjustment.

[0069] In this example, a buffer rod 6 is provided on the upper side of the lever opposite to the fixing frame 1. When the guide belt 4 deflects greatly and the impact force on the lever is large, it plays a buffering role so as not to damage the lever.

[0070] Of course, an inclined surface can also be provided on the lower portion of the offset structure 2. This inclined surface rotates with the lower portion of the offset structure 2, squeezing the radially movable end of the adjustment shaft 3 and driving radial movement. When the guide belt 4 deviates from its normal operating position and deviates toward one end of the adjustment shaft 3, it pushes against the upper portion of the offset structure 2, causing the lower portion of the offset structure 2 to rotate. The inclined surface of the lower portion of the offset structure 2 rotates and squeezes the adjustment shaft 3, thereby driving radial movement of the radially movable end of the adjustment shaft 3. This causes the adjustment shaft 3 to deviate from the direction of movement of the guide belt 4, i.e., the direction of movement of the adjustment shaft 3 and the guide belt 4 are not perpendicular. This creates a lateral force when the guide belt 4 moves on the adjustment shaft 3, pulling the guide belt 4 back to its normal operating position.

[0071] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0072] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0073] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0074] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0075] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification.

[0076] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A guide belt automatic deviation correction mechanism, characterized in that: include: Fixed frame; An offset structure, wherein the offset structure is rotatably disposed on the fixed frame, and an upper portion of the offset structure rotates together with a lower portion of the offset structure when the upper portion of the offset structure is pushed by the guide belt; an adjustment shaft, wherein at least one of the two ends of the adjustment shaft is radially movable, and the radially movable end of the adjustment shaft moves radially when being rotated and squeezed by the lower portion of the offset structure; The radially movable end of the adjustment shaft is provided with an inclined surface, and the inclined surface drives the radially movable end of the adjustment shaft to move radially when being rotated and squeezed by the lower part of the offset structure; Alternatively, a slope is provided at the lower portion of the offset structure, and the slope rotates along with the lower portion of the offset structure to squeeze the radially movable end of the adjustment shaft to drive it to move radially.

2. The automatic guide belt deviation correction mechanism according to claim 1, characterized in that: Both ends of the adjustment shaft are respectively arranged on the fixing brackets in a radially movable manner, and the offset structure is rotatably arranged on each of the fixing brackets.

3. The automatic guide belt deviation correction mechanism according to claim 2, characterized in that: The offset structure is a lever, which is pivotally connected to the fixing frame. The upper portion of the lever is opposite to the guide belt. When the upper portion of the lever is pushed by the guide belt offset, the lower portion of the lever is rotated in conjunction with the upper portion of the lever.

4. The automatic guide belt deviation correction mechanism according to claim 3, characterized in that: The lever is rotatably arranged on the fixing frame via an inlaid solid lubricating bearing.

5. The automatic guide belt deviation correction mechanism according to claim 3, characterized in that: A buffer rod is provided on the side of the upper portion of the lever opposite to the fixing frame.

6. The automatic guide belt deviation correction mechanism according to claim 1, characterized in that: A guide rod is provided on the fixing frame, and a radially movable end of the adjustment shaft is provided on the guide rod.

7. A printer, characterized in that: It comprises the automatic guide belt deviation correction mechanism as described in any one of claims 1 to 6.

8. A printer according to claim 7, characterized in that: The utility model also comprises a frame, on which the fixing frame and the guide belt driven to rotate by a power component are mounted.

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