15358968703
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Application and technology of tension leveling and rewinding unit
Brief description of production process
The incoming material coil of the unit is hoisted by the crane in the workshop to the incoming material storage platform at the front of the unit, and the storage platform is equipped with a coil detection sensor. Manual winding or automatic winding is adopted. The winding trolley is manually moved to the bottom of the tape roll on the storage table, and the tape roll is lifted and moved horizontally. Before the tape roll enters the reel, the saddle of the trolley is manually operated by visual inspection. The seat is raised and lowered so that the center of the tape roll is aligned with the center of the uncoiler reel in the height direction. After the height direction is aligned, the trolley continues to move laterally, and controls the operation according to the ruler on the uncoiler reel and manual visual inspection, so that the tape reel is basically aligned with the center line of the unit, and the tape reel is sleeved on the reel of the uncoiler. Or the height direction and the horizontal direction are automatically positioned. The distance between the coil and the sensor is detected by the laser ranging sensor in the height direction, and the coil diameter is calculated. The width of the coil is detected by the photoelectric switch and the photoelectric encoder. The shaft head support lifts the support reel, the saddle of the trolley descends, and the uncoiler reel expands in diameter and then presses down the pressure roller, and the trolley returns. Roll-up is complete.
At the beginning, first rotate the belt head to a suitable position, and manually cut the strapping belt on the belt roll on the back side of the uncoiler. The scraper of the starter swings out to the working position. Jog the uncoiler to rotate the tape roll, so that the tape head is opened and advanced along the scraper of the head leveler into the pinch roller of the head leveler, and the upper roller of the pinch roll presses down and clamps the strip. The scraper of the starter retracts and swings down. Jog the uncoiler and the starter to make the strip continue to move forward. After the straight head of the five-roll straightener, the head of the strip enters the cutting head and shears. Complete the beginning of the tape roll. The CPC system is put into operation. Tension uncoiler between the starter and the uncoiler.
When cutting the head, first swing the swinging guide table after cutting the head. The starting machine and the five-roll straightening machine feed forward, and the lead enters the cutting head and shears, and the feeding stops. The head cutter cuts and cuts off the tape head. The cut scrap tape heads fall into the scrap trolley. Repeat the process as needed to complete the trimming of the strip. Or set the cutting length to automatically cut the head.
The strip continues to be fed forward, with human assistance leading the way through the welder. When the belt head passes through the 1# tension roller, the 1# pressure roller is pressed down, and continues to feed forward. #, 4# tension rollers continue to feed the belt forward together with the previous equipment, so that the strip passes through the body of the leveler, and after passing through the 5#, 6#, 7#, 8# tension rollers, the 3#, 4# pressure rollers press Down; 5#, 6#, 7#, 8# tension rollers are fed together with the previous equipment.
After the strip passes through the turning roller, the looper, and the looper outlet tension roller, the pressure roller of the looper outlet tension roller is pressed down, and the looper outlet tension roller and the preceding equipment are linked together to feed the material, so that the strip passes through the outlet rectifying roller. The strip enters the trimming disc shear for trimming. The strip after trimming continues to advance through the gantry. The cut waste tape edge enters the waste edge pit through the waste edge guide groove on the disc cutter. Manually lead the waste edge head out of the waste edge pit to the edge crimping machine, insert it into the reel of the edge curling machine, jog the edge curling machine, and coil the waste edge. Then put it in a linked state.
The belt head passes through the inspection table and is sent to the pinch roller. The pinch roller and the front-end equipment are fed forward together. After passing through the oiler, through the slitting and shearing, and passing through the turning roller, the strip is guided along the guide plate of the coiler to the coiler. With the help of The coiler winds the strip onto the reel of the coiler. The coiler coils several turns of strip at low speed, and the coiler is turned on.
The EPC is put into work, the unwinding pressure roller is lifted, the roll gap of the starter and the five-bar leveler is opened, the pressure rollers of the tension roller at the exit of the stretch-bending leveler and the entrance are opened, and the pressure rollers of the tension roller at the looper outlet are opened. The looper outlet and inlet tension rollers are put in, the guide plate table of the inspection table is withdrawn from the unit, the pinch roller is opened, the coiler guide plate is swung down, and the coiler is retreated. When these linkage conditions are met, the elongation is manually set, the unit starts to build tension, the roll system of the leveler is put into operation, the shape of the plate is adjusted at low speed, the speed is increased and the production is normal.
When the weight of the strip on the coiler is close to the set value, the automatic metering system of the unit controls the coiling section of the unit to automatically stop. The coiler is pressed down by the roller, and the strip is cut by slitting and shearing. Jog the coiler. The roller of the coiler is raised, the diameter of the coiler is reduced, and the saddle of the unloading trolley is raised to hold the coil. After confirming that the support of the shaft head is retracted, the unloading trolley moves laterally towards the direction of the storage table. The finished coils are bundled one or two times on the unloading trolley. When the unloading trolley reaches the position of the finished product storage platform, the saddle of the unloading trolley is lowered, and the coil is placed on the storage platform to complete the automatic unloading process. Coils can be bundled on the stock table. The coil is conveyed to the handover saddle of the walking beam, and the coil is conveyed to the outside of the line by the walking beam, and weighed at the 1# coil position of the walking beam.
When the coiling section stops, the upper roller of the pinch roller is pressed down, the pressure roller of the tension roller at the looper outlet is pressed down, and the equipment at the front of the looper continues to straighten the strip at the crawling speed and store the straightened strip in the looper. In this case, the pinch roller and the looper outlet tension roller provide the outlet tension of the strip. When the coiler unloads the coil, the pinch roller and the looper outlet tension roller feed to the coiler together. When the coil is coiled for 3-5 laps, the coiler increases the tension and increases the speed. normal production.
When a large coil is completed, after the coil on the uncoiler is produced, the upper straightening roller of the five-roll straightening machine is pressed down to straighten and cut the tape tail, and make the tape tail stop at the at the welder. After the next coil goes through the beginning, straightening, cutting, and centering the lead by the vertical guide roller, the lead is sent to the welding machine for narrow lap welding. The unit stops and starts welding and punching. When the welding process is completed, it continues to feed the belt forward, and the welding seam reaches the crescent shear, and the edge welding seam is cut off. The roll gap of the starting machine and the five-roller leveler is opened, the outlet of the stretch-bending leveler, the pressure roller of the inlet tension roller is opened, the pressure roller of the looper outlet tension roller is opened, the guide table of the inspection table is withdrawn from the unit, and the pinch roller is opened. , the unit enters the low-speed linkage working state (the elongation returns to zero), and the welding passes through the stretching and bending leveling machine (when the welding seam is close to the bending straightening roller, the stretching and bending straightening roller system is automatically opened to allow the welding seam to pass through. After that, the roller system is automatically pressed down and put in), after the welding seam reaches the slitting and shearing, the upper roller of the pinch roller is pressed down, and the pressing roller of the tension roller at the outlet of the strip looper is pressed down, and the welding seam is cut off, and there will be a welding seam. The waste tape is taken away, and the equipment at the front of the looper continues to fill the sleeve at the crawling speed. After the welding seam is processed, the lead is passed to the coiler for normal production.
When a large coil is produced, repeat the strip threading process from welding, slitting to coiler, and perform shearing, straightening, sub-coiling or re-coiling operations.
Shear sampling is performed at the slitting shear. When sampling, the feeding length of the sample is controlled by manual operation, and it is cut by slitting shears, and the cut samples are taken manually.
The unit is equipped with an inspection table with a stroboscope to manually inspect the upper and lower surfaces of the strip.
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15358968703
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15358968703