Aluminum extrusion procedures and precautions
1、Notes for machine squad leader
The quality of the production plan directly affects the normal situation of production. The key is to make the staff of the whole class understand the plan of the squad leader, what should be produced first, what to produce next, and what to produce again, besides arranging the molds and aluminum rods in the order of production. Production has clues. To use the plane die and splitter die, the special pad must be prepared before production, and the next set of upper die can not be pulled out from the die oven after the die set is released, and no special pad can be found, resulting in the die The drop in temperature will not cause pressure or damage to the mold, which will affect the planned completion time and increase the production cost. When the mold on the machine to see whether the mold number is the same as the scheduling, the wall thickness, length, color, order number of the master is conducive to increase production, control the quality.
2, the host hand matters needing attention
A qualified host must have a good understanding of the monitor, be able to communicate with the monitor, understand the monitor's production plan, and monitor the production when the monitor is not on site, without causing downtime.
Only by familiarizing with the production plan, the operator can understand the skills of starting, and control the extrusion speed according to different surface treatment methods, sections and wall thicknesses to increase production and reduce waste production.
It is the sacred duty of the operator to operate strictly in accordance with the process and equipment operation procedures. The robot and the master cylinder must pay close attention when they enter, and the hand cannot leave the control switch of the operation console to prevent the extrusion stem from being pressed on the cake or the failure of the mechanical hand. The accident occurred.
3, the interruption of the operating procedures
When the worker is interrupted, he must first check whether the blade is fixed, the rotating device, the safety device and the buttons are normal.
Pay close attention to whether or not the discharge port profile is running smoothly. When the required length of the profile is reached, sawing is started.
Press the handle switch or the foot pad switch to press the saw blade to the discharge profile. During the sawing process, the saw blade must be moved in the same direction as the discharge speed. When the profile is cut off, the saw blade must be quickly removed from the profile.
Then saw the broken profile into the rack cooling, and every three to five points must saw the sample plate to check the surface quality, while the appropriate application of the lubricant to the blade.
4 straightening work procedures
The straightener checks the mechanical fasteners and the hydraulic transmission system during the shift, and the operating handle and button are normal. Start hydraulic pump, motor is normal.
According to the length of the profile, the distance of the rear clamp is properly adjusted, and after the clamp is fixed, the empty load test run is performed, the operating jaw is “opened-closed”, the cart “stretch-returns” several times, and the check is normal. Straightening can only be carried out when the profile temperature is lower than 50°C. The jaws of the feeding operation are released and clamped. The cart returns to the limit position, and the rear gripper is in the straightened state at the same time when clamping.
During the straightening process, straighten the profile by hand to make it straight, or press the chuck to rotate the profile straight, press the stretching handle, the stretching starts, the stretching rate should not exceed 1.5%, and pay attention to the profile shape size The change, to avoid excessive stretching, after the end of the stretch, the cart back, loosen the front and rear chucks, the profile sent to the storage station.
Profiles should be straightened in time to prevent the blanks from accumulating on the cold bed, resulting in bumps, scratches, and rubbing of flowers. The decorative surface of the profile faces upwards to prevent the decorative surface from rubbing the flowers. The conveyer belt of the blank after conveying and straightening is kept in synchronous operation with the bridge belt.
5 Sawing and Packing Operation Procedure
First check the blade fixing, transmission, safety device and the buttons are normal, and then according to the "squeeze production order" on the profile length, color, direction, loading, can not be mixed. Feed the sawing table until it hits a stop and straighten the profile. Spray a proper amount of cooling lubricating oil on the saw blade and begin sawing. When sawing, it is necessary to control the number of sawings at one time to prevent rubbing, and when sawing the finished blank and the light fabric, it is necessary to use a clean cloth for spacing between each branch.
The sawed section is loaded into the specified material frame, and the material with quality problems cannot be put into the frame. The heavy and heavy sections are installed below during the loading process and the light and thin sections are installed above. At the same time, it should be done gently to prevent crushing, embossing, and squeezing. Each section of the profile must be covered with bars, and the profiles of different lengths and lengths are not mixed in principle. When it is necessary to mix and match, it is necessary to adopt a frame method with long and short lengths. After the frame is properly covered with a striped cloth, it must be turned in time. Transferred into the furnace aging time.
