在使用切菜机输送带的过程中，我们有时会发现输送带顺纹运行的现象。输送带顺纹运行的危害一般不大，光滑的纹理不仅是表面的问题，而且是上下盖胶的问题。沿线出现裂纹，导致覆盖胶层提前劣化损坏，关系到输送带的使用寿命。那么，输送带顺纹的原因有哪些呢？
In the process of using the conveyor belt of the vegetable cutting machine, we sometimes find that the conveyor belt runs along the grain. The damage of the conveyor belt running along the grain is generally small. The smooth texture is not only a problem of the surface, but also a problem of the upper and lower cover glue. Cracks along the line lead to early deterioration and damage of the covering layer, which is related to the service life of the conveyor belt. So, what are the reasons for the smooth grain of the conveyor belt?
1、输送带下纹出现在特定的NN和EP平纹织物上。对比不同芯织物的基本性能，不难发现NN和EP织物具有纬向伸长过大的特点，其纬向断裂伸长率是棉和维尼纶织物的4倍以上。
1. The lower grain of the conveyor belt appears on certain NN and EP plain fabrics. Comparing the basic properties of different core fabrics, it is not difficult to find that NN and EP fabrics have the characteristics of excessive weft elongation, and their weft elongation at break is more than 4 times that of cotton and vinylon fabrics.
2、输送带硫化时，喇叭紧贴带坯挤压带芯。
2. When the conveyor belt is vulcanized, the horn presses the belt core against the belt blank.
3、与输送带的硫化设备有关。如果平板表面局部不平整，缺陷处就会产生颗粒。
3. It is related to the vulcanization equipment of the conveyor belt. If the surface of the plate is locally uneven, particles will be generated at the defect.
4、带材成型质量相关。如果覆盖胶有孔洞，布层会随着胶料的流动形成局部光滑的纹路。
4. Related to strip forming quality. If the covering glue has holes, the cloth layer will form local smooth lines with the flow of the glue.
5、与硫化时的预拉伸量有关。另外，也考虑是织物热收缩过大造成的。
5. It is related to the pre stretching amount during vulcanization. In addition, it is also considered that it is caused by excessive thermal shrinkage of the fabric.
一般来说，形成平行纹的原因还有很多。直纹对输送带正常输送物料影响很大，可能导致输送带接头困难。它也很容易松开和脱离，导致停机和摇头损失。因此，工作人员在发现顺纹时一定要找出具体原因，及时处理问题，以免造成不必要的损失。
Generally speaking, there are many reasons for the formation of parallel lines. Straight lines have a great impact on the normal conveying of materials by the conveyor belt, which may cause difficulty in the joint of the conveyor belt. It is also easy to loosen and disengage, resulting in downtime and shaking loss. Therefore, the staff must find out the specific causes when finding the smooth lines, and deal with the problems in time to avoid unnecessary losses.
此外，由于蔬菜要和输送带直接接触，因此多功能切菜机上使用的输送带，需要符合食品卫生标准，可与食品直接接触。使用多功能切菜机进行加工的蔬菜，也有可能是还未清洗过的，因此所使用的输送带就需要选择无污染，耐油，且容易清洗的。由于工作量比较大，所选的输送带就需要具备高强度的抗拉能力，曲绕性要好，轻巧耐用。
In addition, since vegetables need to be in direct contact with the conveyor belt, the conveyor belt used on the multi-functional vegetable chopper needs to meet the food hygiene standards and can be in direct contact with food. The vegetables processed by the multi-functional vegetable cutting machine may also have not been cleaned. Therefore, the conveyor belt used needs to be non-toxic, pollution-free, oil-resistant and easy to clean. As the workload is relatively large, the selected conveyor belt needs to have high-strength tensile capacity, good winding, light and durable.
由于切菜机需要对蔬菜进行切割，刀片在输送带上切割的频率较高，为此在选择输送带的时候，就要考虑
切菜机输送带的耐磨性、耐切割性。
As the multi-functional vegetable cutting machine needs to cut vegetables, the blade has a high cutting frequency on the conveyor belt. Therefore, when selecting the conveyor belt, the wear resistance and cutting resistance of the conveyor belt of the vegetable cutting machine should be considered.
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