作为Habasit UK的织物传送带技术经理，我经常通过客户联系，当他们在倾斜和拒绝输送应用程序上遇到产品滑动问题时。可滑动的结果，包括产品损坏和废物，线路停工，减少生产，需要立即解决方案。
Fabric conveyor belts, both with and without coatings, are the cost-effective workhorses of a wide variety of industries. But in this blog I want to focus on two particular sectors:
- Dry food processingof biscuits, cookies and crackers
- 分销中心处理盒子和板条箱
倾斜和拒绝输送应用
In many cases, it turns out that the slippage problems began after the belt became soiled, or there was a change in the specifications of the products conveyed. For example:
- 食品加工：传达的饼干类型被改变，这意味着产品更含糊或油性，或者现在存在淀粉或糖粉尘着陆，这损坏了皮带的摩擦。通常被忽视的滑动和位置丧失的原因也可以是由偏心辊，特别是支撑辊或具有产品堆积的辊引起的微妙振动。
- Distribution:the boxes on the belts now had less content and/or a lower weight (not so unusual nowadays), or the packaging surface of the boxes was different, e.g. more waxy, which contaminated the surface of the grip-top structure and reduced friction.
已经建立了造成困难的原因，如果很清楚，只需用相同的新人取代旧皮带不是答案，下一步就是找到解决麻烦的最具成本效益的方式。
What’s your angle?
首先要查看的是皮带的梯度或倾斜，看它是否可以改变。角度的减少可以很好地解决问题而无需进一步措施。
确定用带Y传送产品X的最大可能角度Δmax的最大可能角度非常简单。固定样品带（1）在固定的支撑上，如木板（2）, and place on it one or more of the goods to be conveyed（3）。现在倾向于支撑，直到货物开始幻灯片。在滑动开始之前测量梯度高度HT，并将此高度除以支持LT LT的长度。最大可能倾斜角度的公式是：
干粮应用
We usually advise a gradient of 12º to 14º at maximum for biscuit conveyance. There are cases where steeper inclines of 15º or 16º work, usually with woven fabric belts without a coating, as the surface has a better grip. This is because the peaks and troughs in the weave provide a physical grip characteristic, and allow any debris to fall into the troughs. However, if the product specification changes and the belt surface becomes more saturated or coated with oil or fats, or there is a loss of friction, the gradient may need to change, or a belt with a coating or special surface, or even flights, may be required.
分发应用程序
同样，虽然盒子可以在高达30º到35º的斜面上携带，但如果箱占地面积保持相同但重量减小，则盒子的重心，其抓地带将变化，导致滑动。在这里，皮带梯度的变化可以有助于，虽然通常，也需要新的带表面和配件，如飞行，型材或夹板。
新的皮带涂层，表面结构，飞行和夹板
In cases where adjusting the gradient of the conveyor is ineffective or impossible, it’s time to look at changing the belt coating or surface, and/or using accessories such as transverse profiles, which can be welded onto a belt using the same compound as the cover.
食品加工：Since cleats or profiles can often be unsuitable for food processing applications due to hygiene and conveyor design restrictions, in these situations, coatings and surface structures offer an excellent way to provide easy cleaning, good release, and reliable positioning without slippage.
有三种用于食品加工的普通涂层类型（其他可用）：
- 热塑性聚氨酯TPU, which offers good grip, is very soft, and has high flexibility, excellent abrasion and wear resistance, plus resistance to edible fats and oils
- 热塑性烯烃TPO，用于使用的Habasit’s Cleanline范围，并提供优异的耐化学性和优秀的产品释放
- Silicone, which provides the best grip, with excellent release properties, high-temperature resistance, and good hydrolysis and chemical resistance. Silicone is less abrasion resistant, however, and also the most expensive.
A wide range of special surface structures, from smooth to waffle structures, is also available to support reliable conveying. Even subtle embossing can help to grip the underside of a cracker and prevent slippage. Illustrations of surface structures are accessible on our网站。
Distribution:虽然夹板和型材可用于帮助管理产品滑动，但是许多带表面具有更高握把的皮带表面可用，例如具有锯齿或握把顶部峰值。在这些情况下也经常使用PVC覆盖物以抓住重型盒的下侧。更轻的箱子可能需要具有更多表面的带槽带，基于软化合物。有许多选择可用。表面结构的插图可以访问我们的网站。
联系我们以获得支持
您是否在织物皮带干粮加工或分销应用中遇到问题？如果是这样，请随意联系me for assistance with finding the right solution.
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