Q&A about Layer bag slitter
To find the truth of pallet bag emptying machine
Q:
Why Layer bag slitter Require Stacked Bags to be as Flat as Possible?
A:
The grabbing mechanism of the layer-by-layer unpacking machine uses claws to hook and pick up the bags. All the claws are located on the same plane and have a grabbing depth of 80-100mm. There are about 80-90 claws installed on the grabbing mechanism to ensure the bags are held securely. Only when the claws of the grabbing mechanism can grab as many bags as possible can the subsequent unpacking process be completed with high quality.
Typically, stacked bags are arranged in layers of five. For various reasons, when the surface of some layers of bags becomes uneven, the plane of the grabbing mechanism will land on the highest point of the stack during the process of descending to grab the bags. Since the grabbing depth of the mechanism is fixed, if the height difference of the bag surfaces exceeds 60mm, the unevenness will prevent the claws from properly reaching and grabbing the lower-positioned bags. As a result, only parts of the lower bags will be grasped, and in extreme cases, only 1 or 2 claws might hold onto a bag.
In situations where the bag is only partially grabbed by a few claws, material may leak out from where it is hooked. During the subsequent process when the cutting blades open the bag, it could lead to the bag being incompletely cut, which may cause various issues. These issues include reduced emptying efficiency, and in severe cases, bags may fall into the hopper.
XUNLI’s layer-by-layer unpacking machine adopts a unique design that better accommodates uneven stacks, reducing the occurrence of anomalies caused by uneven stacking. However, to ensure optimal performance, it is still necessary for the stacked bags to be as flat as possible.
Q:
Why isolate the processing capacity from the emptying rate is meaningless?
A:
There are several well-known manufacturers of bag emptying machine, on the processing capacity of the machine and bag emptying rate, they state the capacity is more than 1200 or 1300 bags / hour, the emptying rate is higher than 99.98% or 99.99%, they give readers the information that their machine can be guaranteed in the case of 1200-1300 bags / hour, at the same time to achieve 99.99% of the emptying rate, But in fact, in the case of such a high speed, the emptying rate can not be guaranteed, because with a speed of 1200 or 1300 bags / hour, it means that each circle will be completed in 15 seconds or 13.8 seconds to complete a layer of bags emptying, however, under such speed, the equipment does not have enough time to complete the material emptying, a large amount of material will be wasted, so out of the premise of the emptying rate of the processing capacity is meaningless.
Q:
Why to get the bag debris cleaned out from the material is important?
A:
The layer bag slitter’s cutter is made up of a set of rotating circular blades. As bags pass through the circular blades, they are cut open from the bottom, and the corners of the bags are also trimmed, producing bag debris of various sizes. This debris can mix into the material, potentially impacting the material transportation system. Additionally, because the bag debris may contain printed words and patterns, it can lead to minor defects in the final product for plastic product enterprises. For the film and blown film industry, where the bag material is PE and the product material is PP, the mixing of PE bag debris into the PP material can result in product spots due to the different melting points of the two materials. Therefore, it is important to minimize bag debris during the cutting process and ensure that the equipment can effectively remove the bag chips from the material.
Q:
Why layer bag slitter not fit for powder material bag emptying?
A:
It is mainly due to three reasons: First, on the top of the machine, there are a lot of mechanical and electrical parts, the powder dust will spread and pile up on these parts, this machine is high and significant, it is hard to get these powder dust cleaned. Second, the emptying device of all similar layer bag slitter works well for pellet material but cannot empty the powder material thoroughly, leading to significant material losses. Third, all similar layer bag slitter cannot have reasonable control of dust because the bag entrance is substantial, which will cause dust leakage.
