The whole process of cardboard box assembly: a detailed guide from unfolding to sealing

First, how to assemble cardboard boxes preparation before assembly: clean and complete is the basis

The preparation before assembling the carton cannot be ignored. A good start can greatly improve the operation efficiency and the final packaging quality.

1. Prepare cartons and tools

Make sure you have:

Sufficient number of cardboard boxes (select according to the required size);

Sealing tape (recommended width is not less than 4.5cm);

Sealing knife or scissors (for cutting tape);

Optional filling materials (such as foam, corrugated paper, waste newspaper, etc.);

Marker or label paper (for external identification).

2. Clean the work surface

Choose a clean, flat table or ground operation area. A clean environment can not only keep the surface of the carton clean, but also prevent the tape from adhering to dust and affecting the pasting effect.

Second,how to assemble cardboard boxes unfold the carton: restore the three-dimensional structure from the plane

When assembling, the carton is usually stacked flat. The first step is to unfold it into a three-dimensional box.

Steps:

Place the carton on the operating table;

Open the carton from both ends with both hands;

Stand up the four corners of the carton to present a complete box shape;

Fully open the four folding plates of the box cover (usually on the top of the carton) to prepare for the subsequent sealing operation.

Third, how to assemble cardboard boxes bottom folding and packaging: a key step to stabilize the structure

The bottom of the carton is the main load-bearing part. If the structure is not firm, it is very easy for the items to slip or penetrate the bottom, so the folding method and the bottom sealing technique are crucial.

1. Fold the bottom flaps

First fold the shorter flaps on both sides inward;

Then cover the longer flaps on the upper and lower sides;

Pay attention to adjust so that there is no gap between the bottom cardboards.

2. Bottom sealing reinforcement

Use sealing tape to stick from the center line and stick a whole strip of tape along the seam direction;

In order to enhance firmness, the “H” shape sticking method or “double cross sealing method” can be used to strengthen the structural strength, especially suitable for heavy boxes

Fourth, how to assemble cardboard boxes filling and packing: Place items properly to protect their safety

Before putting items in a carton, if there is space or protection requirements, consider filling with cushioning materials to prevent items from shaking or colliding.

Recommended fillers:

Foam particles, bubble film;

Folded newspapers, paper scraps, corrugated paper pads;

Cloth or soft sponges can be used as separators in DIY crafts.

Main points for packing:

Put heavy items at the bottom and light items at the top to balance the center of gravity;

Pack fragile items separately and pack them;

Make sure the items are placed firmly and not crushed;

Try to avoid wasting space while keeping the buffer layer intact.

Fifth, how to assemble cardboard boxes sealing the box lid: Seal firmly to prevent loosening and opening

The sealing operation is the last and most critical step of the carton. It is necessary not only to ensure that the box lid is closed flat, but also to use tape to seal it thoroughly.

1. Folding the cover

Fold the small “ear”-shaped folding plates on both sides inward first;

Then press the upper and lower two large cover plates together in sequence to cover the entire box opening;

Check whether the cover surface is flat and has no warping edges.

2. Tape sealing

Apply a horizontal tape along the center seam;

Add tape to the bevels or edges on both sides to strengthen the seal as needed;

The cross-taping method or two-way taping can be used, which is suitable for packaging larger or important items.

Sixth, how to assemble cardboard boxes marking and classification: more worry-free transportation and storage

After sealing, remember to mark or label the outside of the carton to facilitate item identification, handling or storage management.

Common marking content:

Recipient’s name and phone number (for logistics);

Name or number of items in the box (for classification management);

Special instructions, such as “fragile” and “do not invert” warning labels;

In moving scenes, “living room supplies” and “kitchen sundries” can be marked.