Corrugated carton production of common problems Raiders - plastic, veneer process (1)

Silicone, veneer process

Problem 1: Collaring Paper

Cause Analysis:

Did not receive and issue according to the requirements of the "Procedural Notice" and "Product Drawing".

ways to improve:

All links are strictly based on the "manufacturing order notice" and "product drawings" for the issuance and collection of face paper.

Question 2: Open plastic, foaming

Cause Analysis:

(1) uneven thickness of the tissue; (2) inappropriate adjustment of the amount of glue applied; (3) irregular warping of the panel or height; (4) uneven unevenness of the surface paper; (5) quality problems of the glue; (6 ) Face paper misalignment after contact with the box board; (7) uneven sizing; (8) too little or uneven pressure; (9) short pressing time.

ways to improve:

(1) Strictly control the ration of face paper when entering the factory; (2) Correctly adjust the amount of glue applied; (3) Disable warped or sloppy boxboards; (4) Check the moisture content of the paper, and pay attention to the size of the paper. Storage and storage; (5) The use of qualified corn adhesive, the viscosity of 25 seconds to 35 seconds; (6) grasp the position of Qi Qi, to ensure a composite; (7) depending on the number of layers and 楞 type, adjust the right and bottom glue Roll gap; (8) strictly in accordance with the provisions of the implementation; (9) pressing time not less than 10 minutes.

Question 3: False Bonding

Cause Analysis:

(1) The quality of the glue; (2) The amount of glue applied is too small; (3) The pressure is too small or the time is too short.

ways to improve:

(1) Use a qualified corn adhesive with a viscosity of 25 seconds to 35 seconds; (2) Strictly follow the regulations; (3) The time for manual tamping is not less than 10 minutes.

Problem 4: Excessive amount of glue applied, resulting in soft board and severe glue penetration

Cause Analysis:

(1) The gap between the scraper roller and the rubber roller is too large; (2) The gap between the rubber roller is small, resulting in a large amount of glue; (3) The pressure of the lamination is large; (4) The surface paper is thin.

ways to improve:

(1) Reasonable adjustment of the gap between the scraper roller and the rubber roller; (2) Adjusting the gap of the rubber roller according to the box thickness of different thickness; (3) Adjusting the gap between the upper and lower conveyor belts (semi-automatic laminating machine) depending on the thickness of the jaw box and the box; ( 4) Appropriately reduce the amount of glue and the gap between the rollers.

Question 5: There is more glue in the box or inside

Cause Analysis:

(1) The mishandling of the machine is caused by miscellaneous glue; (2) The cardboard is leaked or the glue is stuck on the depleted material; (3) The speed of the machine is too fast; (4) The viscosity of the glue is too large or too small; (5 ) The gap of the gluing roller is too small (five layers of 裱 six layers or three layers 裱 four layers); (6) Paper glue (water roll deficient or gap adjustment is improper).

ways to improve:

(1) Improve worker's operation skills; (2) Pay attention to the uniform size of the inner paper and the crepe paper when the single-sided machine runs the board, and align the box boards to align; (3) Control the speed of the machine; (4) The preparation worker is strict According to the standard blending adhesive; (5) correct adjustment of the gap between the rubber roller and the pressure roller; (6) check the water level of the water tank and adjust the water roller gap.