在使用切菜機輸送帶的過程中，我們有時會發(fā)現(xiàn)輸送帶順紋運行的現(xiàn)象。輸送帶順紋運行的危害一般不大，光滑的紋理不僅是表面的問題，而且是上下蓋膠的問題。沿線出現(xiàn)裂紋，導(dǎo)致覆蓋膠層提前劣化損壞，關(guān)系到輸送帶的使用壽命。那么，輸送帶順紋的原因有哪些呢？

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、輸送帶下紋出現(xiàn)在特定的NN和EP平紋織物上。對比不同芯織物的基本性能，不難發(fā)現(xiàn)NN和EP織物具有緯向伸長過大的特點，其緯向斷裂伸長率是棉和維尼綸織物的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、輸送帶硫化時，喇叭緊貼帶坯擠壓帶芯。

2. When the conveyor belt is vulcanized, the horn presses the belt core against the belt blank.

3、與輸送帶的硫化設(shè)備有關(guān)。如果平板表面局部不平整，缺陷處就會產(chǎn)生顆粒。

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、帶材成型質(zhì)量相關(guān)。如果覆蓋膠有孔洞，布層會隨著膠料的流動形成局部光滑的紋路。

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、與硫化時的預(yù)拉伸量有關(guān)。另外，也考慮是織物熱收縮過大造成的。

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.

一般來說，形成平行紋的原因還有很多。直紋對輸送帶正常輸送物料影響很大，可能導(dǎo)致輸送帶接頭困難。它也很容易松開和脫離，導(dǎo)致停機和搖頭損失。因此，工作人員在發(fā)現(xiàn)順紋時一定要找出具體原因，及時處理問題，以免造成不必要的損失。

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，由于蔬菜要和輸送帶直接接觸，因此多功能切菜機上使用的輸送帶，需要符合食品衛(wèi)生標(biāo)準(zhǔn)，可與食品直接接觸。使用多功能切菜機進行加工的蔬菜，也有可能是還未清洗過的，因此所使用的輸送帶就需要選擇無污染，耐油，且容易清洗的。由于工作量比較大，所選的輸送帶就需要具備高強度的抗拉能力，曲繞性要好，輕巧耐用。

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.

由于切菜機需要對蔬菜進行切割，刀片在輸送帶上切割的頻率較高，為此在選擇輸送帶的時候，就要考慮切菜機輸送帶的耐磨性、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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