A transmission guide belt deviation correcting device

Abstract

A kind of transmission guide band deviation rectifying device, it is related to digital printing field, including guide band deviation rectifying support and guide band deviation rectifying compression piece, installation groove is provided in guide band deviation rectifying support, the lower end of guide band deviation rectifying compression piece is provided with protruding portion, protruding portion is installed in installation groove, the lower end of guide band deviation rectifying compression piece is equidistantly distributed with several guide cylinder pieces being rotatably installed, adjusting component is respectively arranged on the both ends of guide band deviation rectifying compression piece, the threaded column of adjusting component lower end penetrates protruding portion and guide band deviation rectifying support, the utility model discloses through adjustable gap structure, conical guide cylinder piece of covering sponge buffer layer, cooperate with triangular indication part precision leveling and chamfer guide design, it realizes the initiative, smooth, low-loss deviation rectification to the deviation guide band;It can use the guide component force and rolling friction of conical surface when guide band deviates, gently guide guide band back to the right track, effectively avoid the guide band wear, jam and vibration caused by traditional rigid blocking.

Description

Technical Field

[0001] This utility model relates to the field of digital printing, and in particular to a transmission belt correction device. Background Technology

[0002] In digital textile printing equipment, the guide belt, as the core component for carrying and transporting fabric, directly determines the alignment accuracy of the printed pattern and the quality of the final product due to its straight-line running accuracy. However, in actual production, due to various complex factors such as manufacturing errors of the guide belt itself, uneven tension, parallelism deviation of the drive rollers during installation, and asymmetrical fabric bonding, the guide belt inevitably experiences lateral deviation (i.e., misalignment) during high-speed operation. If not corrected in time, this deviation can lead to ghosting, blurring, or even scrapping of the printed pattern, resulting in serious economic losses.

[0003] To address the issue of belt misalignment, existing technologies commonly employ mechanical limit and correction devices. The most common approach involves installing fixed baffles or friction plates on both sides of the belt. When the belt deviates, its edges contact the baffles, forcing it back to its correct position through frictional resistance. However, this rigid contact correction method has significant drawbacks: First, the continuous friction between the fixed baffles and the high-speed running belt edges causes severe wear on the belt edges, greatly shortening its lifespan. This rigid "blocking" correction method is ineffective and can easily lead to belt jamming, serpentine trajectories, or even edge curling, thus exacerbating operational instability and affecting printing quality. Utility Model Content

[0004] The purpose of this invention is to provide a transmission belt correction device to solve the problems mentioned in the background art.

[0005] The technical problem solved by this utility model is achieved through the following technical solution:

[0006] A transmission belt correction device includes a belt correction support and a belt correction clamping component. The belt correction support has a mounting groove, and the lower end of the belt correction clamping component has a protrusion that is installed in the mounting groove. A plurality of guide cylinders are rotatably mounted at equal intervals on the lower end face of the belt correction clamping component. Adjustment components are provided at both ends of the belt correction clamping component. The threaded post at the lower end of the adjustment component passes through the protrusion and the belt correction support, and is threadedly connected to the protrusion.

[0007] Preferably, the surface of the guide cylinder is covered with a sponge layer.

[0008] Preferably, the guide cylinder is configured in a conical shape.

[0009] Preferably, the guide belt correction support is provided with a heightening part, and the upper end surface of the heightening part is provided with a triangular indicator part at the position of each of the adjustment components, and the tip of the triangular indicator part points vertically to the center of the adjustment component.

[0010] Preferably, the upper surface of the guide belt correction support is provided with chamfered portions at the front and rear ends of the cross-section to facilitate the transmission of the guide belt.

[0011] Preferably, when the bottom end of the protrusion contacts the bottom wall of the mounting groove, a gap is left between the lower end face of the guide belt correction clamping member and the upper end face of the guide belt correction support member.

[0012] The advantages and positive effects of this utility model are:

[0013] This invention achieves active, smooth, and low-loss correction of misaligned guide belts through an adjustable gap structure, a conical guide cylinder covered with a sponge buffer layer, and a triangular indicator for precise leveling and chamfering guidance. When the guide belt deviates, it utilizes the guiding force of the conical surface and rolling friction to gently guide the guide belt back to the correct track, effectively avoiding the wear, jamming, and vibration caused by traditional rigid obstructions. This significantly improves the correction accuracy and guide belt lifespan, ensuring the continuous and stable operation of digital printing equipment and high-quality printing output. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 This is a schematic diagram of the overall structure of a transmission belt correction device according to the present invention;

[0016] Figure 2 This is a partially enlarged structural diagram of a transmission belt correction device according to the present invention;

[0017] Figure 3 This is a schematic diagram of the unfolded structure of a transmission belt correction device according to the present invention.

[0018] The markings in the attached drawings are described as follows: 10 for guide belt correction support; 11 for heightening part; 12 for mounting groove; 13 for triangular indicator part; 14 for guide belt correction clamping part; 15 for protrusion; 16 for adjusting part; and 17 for guide cylinder. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention. These drawings are simplified schematic diagrams, which are only used to illustrate the basic structure of the present invention in an illustrative manner. Therefore, they only show the components related to the present invention.

[0020] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the utility model will be more thorough and complete.

[0021] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium; they can refer to the internal communication of at least two components or the interaction relationship of at least two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances. The embodiments of this invention are further described in detail below with reference to the accompanying drawings:

[0022] Please see Figure 1-3This utility model provides an embodiment of a transmission belt correction device, comprising a belt correction support 10 and a belt correction clamping member 14. The belt correction support 10 has a mounting groove 12. The lower end of the belt correction clamping member 14 has a protrusion 15, which is installed in the mounting groove 12. A plurality of guide cylinders 17 are rotatably mounted at equal intervals on the lower end face of the belt correction clamping member 14. Adjustment members 16 are respectively provided at both ends of the belt correction clamping member 14. The threaded post at the lower end of the adjustment member 16 passes through the protrusion 15 and the belt correction support 10, and is threadedly connected to the protrusion 15. When the bottom end of part 15 contacts the bottom wall of the mounting groove 12, there is a gap between the lower end face of the guide belt correction clamping member 14 and the upper end face of the guide belt correction support member 10 for the guide belt with the smallest thickness. By rotating the adjusting member 16, the gap between the upper end faces of 14 and 10 is adjusted according to the thickness of the guide belt. The edge of the guide belt is embedded in the gap. When the guide belt deviates, the edge of the guide belt will contact the guide cylinder 17, thereby using the guide cylinder 17 to generate sufficient lateral constraint force on the guide belt for correction. At the same time, it can also effectively reduce the friction between the guide belt and the guide cylinder 17, thereby avoiding the problem of guide belt wear during the correction process.

[0023] It is worth mentioning that, in this embodiment, the surface of the guide cylinder 17 is covered with a sponge layer, thereby utilizing the cushioning energy of the sponge to further reduce damage to the guide belt.

[0024] In another embodiment, the guide cylinder 17 is provided in a conical shape, and the cone can actively guide the guide belt back, making the correction process smoother and more natural, avoiding harsh obstruction and possible jamming.

[0025] In another embodiment, the guide belt correction support 10 is provided with a heightening part 11. The upper end surface of the heightening part 11 is provided with a triangular indicator part 13 at the position of each adjustment component 16. The tip of the triangular indicator part 13 points vertically to the center of the adjustment component 16, which greatly facilitates the height adjustment of the guide belt correction clamping component 14. The guide belt correction clamping component 14 is adjusted by rotating the adjustment components 16 on both sides, and the triangular indicator part 13 is used to ensure that both ends are at the same adjustment height.

[0026] In another embodiment, the upper end face of the guide belt correction support 10 is provided with chamfered portions at the front and rear ends of the cross-section to facilitate the transmission of the guide belt.

[0027] In practice, the operator installs a pair of correction devices on both sides of the guide belt's running path. The edge of the guide belt fits precisely into the gap formed by the guide belt correction support 10 and the guide belt correction clamping member 14. The operator adjusts the gap using the adjusting members 16 at both ends according to the thickness of the guide belt currently in use. By observing whether the tip of the triangular indicator 13 is aligned with the same height scale of the adjusting member, the operator ensures that the entire guide belt correction clamping member 14 is in a horizontal state, thereby ensuring that the constraint force on both sides of the guide belt is uniform and symmetrical. When threading a new guide belt, the chamfered portions at both ends of the guide belt correction support 10 play a role, guiding the edge of the guide belt smoothly into the correction gap like a slide, avoiding edge jamming or curling.

[0028] The digital printing machine is running continuously at a speed of 30 meters per minute. Due to slight tension fluctuations or minor unevenness in fabric adhesion within the complex transmission system, the guide belt begins to show a tendency to shift to the right. At this point, the left-side correction device is in a "standby" state, with its guide cylinder 17 maintaining a small gap with the edge of the guide belt. Meanwhile, the right-side correction device is about to take effect. At the moment of contact, the friction of the guide belt drives the guide cylinder 17, covered with a sponge layer, to rotate, transforming harmful sliding friction into low-resistance rolling friction. More importantly, the edge of the guide belt presses against the circular... On the inclined surface of the cone, the positive pressure applied by the guide belt is decomposed into a guiding force. The sponge layer on the surface plays a crucial buffering role at the moment of contact, absorbing possible impact energy and ensuring that the correction process is a "soft contact." This completely avoids damage to the guide belt coating or edge wear that may be caused by hard collisions. Under the guiding force continuously provided by the right-side correction device, the guide belt stops deviating to the right and begins to return to the left (centerline direction). As the guide belt returns to the center position, its edge gradually disengages from the right-side conical guide cylinder 17, and the guiding force disappears. The guide belt eventually stabilizes and runs on the preset center trajectory.

[0029] The entire correction process was dynamic, automatic, and smooth, without any jamming, violent shaking, or visible wear on the guide belt. The printhead on the printing machine continuously and stably sprayed ink, ensuring that the patterns on this batch of high-precision curtain fabrics were flawless.

[0030] It should be emphasized that the embodiments described in this utility model are illustrative rather than limiting. Therefore, this utility model is not limited to the embodiments described in the specific implementation. Any other implementation methods derived by those skilled in the art based on the technical solutions of this utility model are also within the scope of protection of this utility model.

Claims

1. A transmission belt correction device, comprising a belt correction support (10) and a belt correction clamping member (14), characterized in that: The guide belt correction support (10) is provided with an installation groove (12), and the lower end of the guide belt correction clamping member (14) is provided with a protrusion (15). The protrusion (15) is installed in the installation groove (12). Several guide cylinders (17) are rotatably installed at equal intervals on the lower end face of the guide belt correction clamping member (14). Adjustment components (16) are provided at both ends of the guide belt correction clamping member (14). The threaded post at the lower end of the adjustment component (16) passes through the protrusion (15) and the guide belt correction support (10), and is threadedly connected to the protrusion (15).

2. The transmission belt correction device according to claim 1, characterized in that: The surface of the guide cylinder (17) is covered with a sponge layer.

3. The transmission belt correction device according to claim 2, characterized in that: The guide cylinder (17) is arranged in a conical shape.

4. The transmission belt correction device according to claim 1, characterized in that: The guide belt correction support (10) is provided with a heightening part (11), and a triangular indicator part (13) is provided on the upper end surface of the heightening part (11) at the position of each adjustment component (16), and the tip of the triangular indicator part (13) points vertically to the center of the adjustment component (16).

5. A transmission belt correction device according to claim 1, characterized in that: The guide belt correction support (10) has chamfered sections at the front and rear ends of the upper surface.

6. The transmission belt correction device according to claim 1, characterized in that: When the bottom end of the protrusion (15) contacts the bottom wall of the mounting groove (12), there is a gap between the lower end face of the guide belt correction clamping member (14) and the upper end face of the guide belt correction support member (10).

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