presswood pallet process description
2.1 The functions of the main equipment in the production line are as follows.
The role of the planing machine: to convert the wood chips into shavings, continuous operation.
Sorting device for shavings; sorts the shavings. Remove oversized chips and fine powder, continuous operation.
Machines No. 1 and No. 2 operate simultaneously and the raw material produced goes into the wet stock bin for storage.
The dryer acts to dry the raw material using hot dry air, and then the fan is used to take the moisture away. Drying temperature 54.6°C. Continuous operation.
The cooling machine utilizes the fan to generate air flow in the drum to take away the heat of the raw material. Continuous operation.
Machine No. 3 and Machine No. 4 start to operate simultaneously when a certain amount of raw material is stored in the wet material reserve bin. When there is a shortage of raw material in the wet stock bin, machine No. 1 and machine No. 2 are operated together. The resulting raw material goes into the dry storage bin for storage.
The mixer is used to mix the dry material with the glue, which is controlled by the motor-driven glue pump. The glue is controlled by the motor-driven glue pump. 14KG of raw material is proportionate to 4KG of glue. The dosage of raw material and glue is controlled by the rotating speed of the belt driven by the motor. Continuous operation.
The role of distributor is to distribute the material to the paver with different presses and keep the material uniform in the front and back direction. It enters the dividing bin for storage. Continuous operation.
Machine No. 5 and machine No. 6 operate simultaneously. The raw material used for pressing is stored in the dividing bins and is waiting to be laid.
Paving is done using a paver truck and weighing is done using load cells. 18 KG material is pressed into 17 KG pallets. The dispenser takes about 25 seconds to lay the 18KG material. Then it is conveyed to the press by the laying mechanical car, and the complete conveying time is 40 S. The time for the press to lower the convex mold is about 37 S. The time for the convex mold to lift up until the complete lifting of the mold after the pressure is released is about 56 S. The time for the press to lift up the convex mold after the release of the pressure is about 56 S.
2.2 Hot press process parameters
1#, 2# press process parameters: pressure: 15-17mpa, holding time: 540s, pressure relief time: 90s, temperature: 140 ℃, size specifications: 1100X1100
3#Press process parameters: pressure: 14-16mpa, holding time: 480s, pressure relief time: 60s, temperature: 150 ℃, size: 1200X1000
