Flexing machine, enhancing efficient production in the post-processing of sandpaper!

 Flexing machine, enhancing efficient production in the post-processing of sandpaper!

In the precision chain of sandpaper production, the post-processing step of "flexing" may seem unremarkable, but it actually plays a pivotal role. It directly determines the final softness and polishing fit of the sandpaper - these two key indicators that affect the user's operational feel and polishing effect.

Has the traditional flexing method reached a bottleneck?

How can we make sandpaper possess superior flexibility and surface fit ability while maintaining its strength?

Shanghai Winsing Intelligent Technology Co., Ltd. has devoted itself to research and development and launched a new generation of composite structure flexing equipment, injecting new vitality into sandpaper performance with innovative technology.

在砂纸生产的精密链条中，“柔曲” 这道后处理工序，看似不起眼，实则举足轻重。它直接决定了砂纸最终的柔软度和打磨贴合度——这两个关键指标，影响着用户的操作手感和打磨效果。传统柔曲方式是否已遇到瓶颈？

如何让砂纸在保持强度的同时，拥有更出色的柔韧性与曲面贴合能力？

上海文声智能技术有限公司潜心研发，推出新一代复合结构柔曲设备，以创新技术为砂纸性能注入全新活力！”

1. Background introduction

一、背景介绍

01

Flexibility: The "finishing touch" of sandpaper quality

柔曲：砂纸品质的“点睛之笔”

The harder the sandpaper, the better is not necessarily true. If it is too hard, it lacks flexibility and struggles to conform closely to irregular surfaces, potentially leading to uneven polishing and missed corners. Conversely, if it is too soft, it lacks sufficient support, affecting polishing efficiency and flatness. The ideal sandpaper requires a balance of hardness and softness. The flexible bending process precisely involves "shaping" the coated sandpaper substrate through specific mechanical actions, optimizing its internal stress distribution and fiber arrangement, and endowing it with just the right level of bending elasticity and recovery. It can be said that flexible bending is the core post-process technology that endows sandpaper with a "soul" and enhances its application performance.

砂纸并非越硬越好。过硬则缺乏韧性，难以紧密贴合异形曲面，容易造成打磨不均、边角遗漏；过软则支撑力不足，影响打磨效率和平整度。理想的砂纸需要刚柔并济。柔曲工艺，正是通过特定的机械作用，对完成涂附的砂纸基体进行“塑形”，优化其内部应力分布和纤维排列，使其获得恰到好处的弯曲弹性和回复性。可以说，柔曲是赋予砂纸“灵魂”、提升其应用性能的核心后道工艺。

02

Traditional flexion-extension pain points: limitations of a single structure

传统柔曲痛点：单一结构的局限

In the past, common flexible bending equipment often used a single roller for rolling or a simple bending device. Although these methods can have a certain softening effect, they have obvious limitations:

Insufficient/uneven flexibility:

Insufficient fiber stretching of sandpaper substrates (especially heavy substrates) results in limited overall or local softness improvement.

Poor fit:

The resulting soft curve effect is often unidirectional or not natural enough, making it difficult to perfectly simulate the various complex surfaces that sandpaper needs to adhere to during polishing.

Stability Challenge:

Under high-speed continuous production, a single structure is more sensitive to fluctuations in process parameters, which can easily lead to performance differences between batches.

过去常见的柔曲设备，往往采用单一的辊筒碾压或简单的弯曲装置。这些方式虽然能起到一定柔化作用，但存在明显局限：

柔度不足/不均：

对砂纸基材（尤其是厚重基材）的纤维舒展不够充分，导致整体或局部柔软度提升有限。

贴合度欠佳：

产生的柔曲效果往往是单一方向的或不够“自然”，难以完美模拟打磨时砂纸需要贴合的各种复杂曲面。

稳定性挑战：

在高速连续生产下，单一结构对工艺参数的波动更敏感，容易造成批次间性能差异。

2. Winsing Intelligent Felexing Solution

二、文声智能柔曲方案

01

Product actual photos

产品实拍

02

performance parameters

性能参数

3、 Product Highlights

三、产品亮点

01

Precise control, efficient production

精准控制，高效生产

The sandpaper substrate passes between two sets of precision controlled, synchronously counter rotating screws. The unique positive and negative 45 ° spiral groove design of the screw applies multi-directional, progressive kneading, squeezing, and stretching forces to sandpaper. Like a massage, it deeply releases the internal stress of the substrate, fully stretches the fiber bundles, and significantly improves the overall softness and uniformity. Especially suitable for deep softening of heavy substrates such as cloth.

Adopting advanced motion control technology, unwinding pneumatic brake control, winding vector variable frequency motor constant tension adjustment, control accuracy ± 3%.

Install high-precision and adjustable curved support devices at key positions after twin-screw processing. Provide customized and just right reverse support force for sandpaper based on preset or real-time feedback process parameters. Accurately control the bending curvature and rebound performance of sandpaper, guiding it to form a "memory" that is more conducive to fitting complex surfaces. Effectively solves the limitation of single directional flexibility and greatly improves the polishing fit.

Integrating auxiliary functions such as meter counting, speed measurement, and correction to ensure consistent softness of each roll of sandpaper.

Support multi-stage dimension settings, automatically adjust torque according to changes in roll diameter, to avoid uneven material stretching or breakage.

Support multiple flexible bending methods such as spiral flexible rods, optical axis flexible rods, and flexible knives, allowing users to flexibly configure according to process requirements.

Integrated roll up and roll up function, as a one-stop solution, can be put into use as an independent production line.

砂纸基材在两组精密控制、同步反向旋转的螺杆之间通过。螺杆独特的正反45°螺旋沟槽设计，对砂纸施加多方向、渐进式的揉搓、挤压和舒展力。如同“按摩”一般，深度释放基材内应力，充分舒展纤维束，显著提升整体柔软度和均匀性。特别适用于厚重基材（如布基）的深度柔化。

采用先进运动控制技术，放卷气动制动器控制，收卷矢量变频电机恒张力调节，控制精度±3%。

在双螺杆处理后的关键位置，配置高精度、可调曲面支撑装置。根据预设或实时反馈的工艺参数，为砂纸提供定制化的、恰到好处的反向支撑力。精准控制砂纸的弯曲弧度和回弹性能，引导其形成更利于贴合复杂曲面的“记忆”。有效解决了单一方向柔曲的局限性，极大提升打磨贴合度。

集计米、测速和纠偏等辅助功能，确保每一卷砂纸的柔曲效果一致。

支持多阶段维度设置，根据卷径变化自动调整扭矩，避免材料拉伸不均或断裂。

支持螺旋柔曲杆、光轴柔曲杆和柔曲刀等多种柔曲方式，用户根据工艺要求灵活配置。

集成收放卷功能，作为一站式解决方案，可作为独立生产线投入使用。

02

Safe and reliable, easy to operate

安全可靠，操作便捷

The roller meshing and power transmission components are mechanically protected to ensure personnel safety.

Built in maintenance and debugging mode facilitates quick troubleshooting and reduces downtime.

Strict power and air pressure detection mechanisms ensure stable operation of the equipment.

It has user permission management function, and different users correspond to different operation permissions.

Optimize the threading path to provide convenient threading experience for operators.

辊筒啮合及动力传动部件均有机械防护，确认人员安全。

内置维修调试模式，便于快速排查故障，减少停机时间。

严格的电源与气压检测机制，确保设备运行稳定。

具有用户权限管理功能，不同用户对应不同操作权限。

优化穿布路径，为操作人员提供便捷穿布体验。

03

Intelligent interface, production without disturbance

智能界面，生产无扰

Equipped with a high-definition touch screen, supporting bilingual switching between Chinese and English, with simple and intuitive operation.

Real time monitoring of production data (speed, roll diameter, thickness, etc.), with alarm prompt function to ensure production safety.

According to customer needs, the flexible bending mode of the light rod or the flexible bending mode of the threaded rod can be selected to meet different production process requirements.

Support switching between jog and automatic modes to adapt to diverse production scenarios.

配备高清触摸屏，支持中英文双语切换，操作简单直观。

实时监控生产数据（速度、卷径、厚度等），并具备报警提示功能，确保生产安全。

可根据客户需求选择光杆柔曲或螺纹杆柔曲模式，满足不同生产工艺要求。

支持点动与自动模式切换，适应多样化生产场景。

4、 Efficiency and effectiveness

四、效益效能

Significant improvement in softness:

The composite force makes the sandpaper feel softer and more resilient overall, greatly reducing grinding fatigue, especially suitable for fine polishing and long-term operation.

The polishing adhesion has increased significantly:

Sandpaper can adhere more tightly and evenly to the surface of the workpiece (whether it is flat, concave, convex, or corner), reduce grinding dead corners, and improve the consistency and smoothness of surface treatment.

More stable and reliable performance:

The composite structure design buffers the impact of a single wave and, combined with an intelligent control system, ensures a high degree of consistency in the flexibility effect during mass production.

More extensive applicability:

It can efficiently process various sandpaper substrates from lightweight paper to heavy-duty cloth, meeting the needs of different application scenarios.

柔软度显著提升：

复合作用力使砂纸整体手感更柔软、韧性更佳，大幅减轻打磨疲劳感，尤其适合精细打磨和长时间操作。

打磨贴合度跃升：

砂纸能更紧密、更均匀地贴合工件表面（无论是平面、凹面、凸面或边角），减少打磨死角，提升表面处理的一致性和光洁度。

性能更稳定可靠：

复合结构设计缓冲了单一波动的影响，结合智能控制系统，确保大批量生产下柔曲效果的高度一致性。

适用性更广：

能高效处理从轻型纸基到重型布基的各种砂纸基材，满足不同应用场景的需求。

5、 Conclusion

五、结语

The softness of sandpaper is another expression of strength. The composite flexible bending equipment launched by Wensheng Intelligence redefines the standard of flexible bending technology with the deep stretching of twin-screw and precise shaping of supporting flexible bending, combining the two swords. Let every sandpaper have just the right amount of "flexible bones", achieving a more fitting, efficient, and comfortable polishing experience!

砂纸的“柔”，是力量的另一种表达。文声智能推出的复合柔曲设备，以双螺杆的深度舒展和支撑柔曲的精准塑形，双剑合璧，重新定义柔曲工艺标准。让每一张砂纸，都拥有恰到好处的“柔韧筋骨”，成就更贴合、更高效、更舒适的打磨体验！

Wensheng Machinery is always committed to using innovative technology to promote industry development and making unremitting efforts for the future of intelligent automation!

文声机械，始终致力于用创新技术推动行业发展，为智能自动化的未来不懈努力！