A system and method for automatic roll changing and receiving of flexible coils

Abstract

The invention discloses a system and method for automatically changing coils and receiving materials for flexible coils. In the system, a first coil is provided on a first unwinding mechanism, and after the first coil is released, it is carried out by a first unwinding negative pressure conveying device. Convey and send to the main negative pressure conveying device. The second unwinding mechanism is equipped with a second coil. After the second coil is released, it is conveyed by the second unwinding negative pressure conveying device and sent to the main negative pressure conveying device. The gluing device is located on one side of the main negative pressure conveying device, and along the conveying direction of the material, the gluing device is arranged in front of the first unwinding negative pressure conveying device and the second unwinding negative pressure conveying device. The method is that the first unwinding negative pressure conveying device and the second unwinding negative pressure conveying device alternately convey coils to the main negative pressure conveying device, and complete the splicing under the cooperation of the main negative pressure conveying device and the gluing device. The invention can replace the traditional manual operation, has high roll changing efficiency, and has less tailing waste, which can effectively reduce the production cost.

Description

Technical field [0001] The present invention relates to the field of manufacturing technology for disposable hygiene products, in particular to a flexible coiling material for automatic coiling and receiving system and method. Background [0002] One of the basic units of disposable hygiene product production equipment (currently mainly sanitary napkin production equipment, diaper production equipment, pull-up pants production equipment, etc.) is the material rewinding unit, and the layout of these units is generally as follows: such as Figure 1 As shown, the material unwinding part uses the motor to drive the unwinding reel, each material has two unwinding reels each other as a backup, when one of the materials on the unwinding reel is about to run out, through the automatic splicing mechanism 2 to splice the two rolls of materials head and tail splicing together, to ensure the continuous supply of materials for production, the reel with the automatic splicing mechanism, suppl...

AI Technical Summary

Problems solved by technology

In the current production line, such a mechanism has been able to realize high-speed continuous production of the equipment, but there are still the following defects in actual production: (1) At the position of unwinding the material, when a certain roll of material is used up, it needs to be manually removed. The new coil is set on the unwinding shaft, and a production equipment generally has 5 to 7 kinds of unwinding materials, and every 3 to 8 minutes will use up a roll of material, and then the material needs to be replaced once; each time To change the material, first manually turn the unwinding switch to loosen the paper tube, then take down the paper tube, put a new coil on the air shaft, turn the switch to tighten the coil, and then stick the material head Apply adhesive tape, then pull the material head into the automatic splicing unit, and wait for the material to be spliced; it can be seen that the operation process of changing rolls includes a series of actions such as the operation of unwinding the reel and the operation of the automatic splicing unit. Although the working process is simple, However, the process is complicated, so this station has not realized automatic operation; in the current production equipment, a set of equipment generally needs to be equipped with 3 material changers

The 3 refueling personnel account for half of the 6 start-up personnel of the whole set of equipment. The labor cost is high and the work intensity is high, so the production cost cannot be effectively controlled.

(2) In the automatic splicing unit, when two coils are spliced ​​end to end, a section of the end of the coil that is about to be used up needs to be reserved and fixed on the unwinding shaft so as to be tensioned and spliced ​​with the new coil. The section of material from the automatic splicing mechanism to the unwinding shaft (commonly known as "tailing") is discarded, which easily causes the loss of raw materials, and the loss of raw materials is large, which is also one of the reasons why the production cost cannot be effectively controlled

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