Honeycomb cardboard production line can be divided into two parts: the paper core and composite board.
Among them, the processing technology of honeycomb paperboard core is the core of the honeycomb cardboard production.
Paper core agglutination and drawing process is the key to produce paper core, it directly resolution utilization of paper honeycomb core and honeycomb cardboard quality, so the function of paper processing equipment has a great influence on the quality.
Products of cardboard production efficiency.
In the process of machining and the nonuniformity of base paper, paper core stretching, paper core overstretch, the accumulation of paper core, severe waste materials.
Produce of honeycomb paperboard core with different standards, defects such as uneven stretch and the insufficiency, the product quality is difficult to ensure.
Stretching way to feed the packaging information structure, and the adhesive bar on the data of dislocation, cut, stack, and then according to the need to cut into strips, then stretched into a honeycomb paperboard core.
Adhesion and tensile general combination is applied, as shown in figure 3.
In the stretching method, the weight of glue is only 1%, or even smaller.
Therefore, the core of the tensile way is way, and the fruit of the selection of paper honeycomb.
Rolling method about honeycomb with big wall thickness, non-metallic materials or special abnormal hexagonal honeycomb body, generally choose rolling method.
Treatment method includes the following steps: out of corrugated sheet shape, and then laminated corrugated materials, adhesive, baking, and the proper pressure.
Because the pressure is not too big, the amount of glue applied generally amounted to 10% of cellular components, this is one of the reasons for the rolling method cannot be widely used, namely processing.
Paper core processing to the core in the stretch to make a process can be further divided into winding core making and cascading core production.
See figure 5 and figure 6.
The characteristics of the winding type is continuous automatic laminated, higher production efficiency and the longitudinal agglutination process.
Paper core fiber to perpendicular to the surface, under the condition of same type pressure higher than laminated.
Defects after winding core of paper is difficult to cut, more waste, low utilization rate of materials.
Type laminated material utilization ratio is high, can produce big and wide paper core, but the core efficiency is low, the rubber line bearing cumulative azimuth error is large, paper core fiber is parallel to the face, the compressive strength than the longitudinal rubber coating.
In practice production, in pursuit of yield, roll core core core stretching processing method generally fall into two kinds, one is vacuum adsorption tensile, the other is a double side double differential drawing drawing.
Two ways of treatment principle and the equipment is completely different.
Vacuum adsorption stretching adsorption stretching machine is a corrugated pipe produced by negative pressure adsorption of the honeycomb core beside of the equipment, and during the travel will be the core to form uniform hexagonal honeycomb paper core.
Specific work process is as follows: compaction of the honeycomb core into narrow mouth, mesh conveyor belt driven by a motor installed on both sides of the wall, conveyor belt, close to the wind side as shown in figure 6, corrugated pipe beside the 2 connected grid is a conveyor belt mesh, air blower through air pipe to the air evacuation, and next to the negative pressure suction paper surface.
Article core through a conveyor belt mesh and forward delivery.
Dongguan industrial cardboard composite factory research and development, production and sales of industrial composite board.
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