Packing boxes
The use of aseptic cartons as packaging for dairy products often causes problems. The bottom of the carton before filling is not well formed, resulting in unsteady placement of the carton. The reasons for this problem are the following:
· The carton is damp due to improper storage;
· Cartons pre-folding device improper adjustment;
• Improper adjustment of the bottom press-fitting device results in insufficient pressure, high or uneven pressure, and the device fails to align with the molding rod;
• The bottom heater position is incorrect;
· Improper ice water regulation;
• The bottom molding temperature is incorrect.
Its specific solution: pay attention to the storage of the carton to prevent moisture and pollution; the commissioning of the machine requires professionals to operate; for the consideration of the user, Cree equipment has a bottom groove device, after processing The bottom of the box can be very smooth.
On this issue, there are other aspects of the statement: the paper box: the storage conditions of the paper box is very important, first of all, the carton height should not exceed five, and second, the storage environment of the paper box requires a constant temperature (21-
About 27 degrees), constant humidity (400%-60% humidity). Because the tray is too high, the box may be deformed; the environment is dry and the cartons are brittle; the humidity is high and the bacteria are easily generated, and the hardness of the box is also affected; these may cause the bottom of the box to be not well formed. Equipment: adjust the carton jaws to ensure that the carton is in the correct position on the mandrel; adjust the relevant links to allow the folding flaps to fold in place; adjust the angle and clearance of the carton press front rails , to ensure that the cartons slide smoothly on the guide rails.
For roof boxes, drip leaks that occur at the sealing area are also frequently occurring. The specific causes and avoidance methods are as follows:
In terms of causes:
Filling piston and cylinder have clearance;
Poor cylinder movement in the filling drive unit;
· The filling piston nut is loose and the clearance is too large;
· Too much filling volume;
Filling time is not coordinated;
· The material itself contains more foam;
The top heater temperature is not appropriate;
· Inappropriate amount of hot air;
The heating time is not appropriate
The heater is not in place;
• Cartridge-guided cooling water pipes are not in the correct position;
The position of the crimping line is not appropriate;
Sealing gap is not appropriate;
The seal pressure is not appropriate
Sealing time is not appropriate.
Can be solved by the following ways:
Replace piston
Check the air pressure of the cylinder and adjust the cylinder piston rod movement speed;
· Fasten nuts or replace pistons
Adjust the filling volume adjustment handle;
·Adjust the carton positioning speed;
·Add defoaming device; adjust heating temperature;
·Adjust hot air;
·Adjust the time and cylinder speed;
Adjust the heater position
·Adjust the position of the guide cooling water pipe;
· Adjust the position of the pressure line;
·Adjust the guide angle;
· adjust the pressure;
• Adjust the sealing time.