Shoe Manufacturing Process Management Process

First,

Purchasing is connected with manufacturers according to the confirmed color cards, so that they can confirm whether they can produce the material.

Two, cutting

1, knife pipe: responsible for receiving the cardboard cutting die from the development department, and managing all the molds.

2, blanking: divided into big Chong and small Chong.

Dash: several materials can be cut together, mainly for leather, lining and accessories.

Small punch: can not be cut, mainly leather.

3. Spot check: count and check the materials that have been rushed out.

4, draw lines and cut edges.

5, ingredients: responsible for matching materials to avoid chromatic aberration.

Three, sewing side

Different styles of shoes have different sewing processes, but they have the following common features:

1, first of all, in the head of the joint, the edge of the back of the joint, head, edge splicing;

2, subsidize strong.

Generally, it is reinforced by slicing, hot melt adhesive or rich and rich cloth.

3, wrap the tongue of sea cotton, booked the tongue;

4, the fabric has a reverse position to beat.

5, according to the order from inside to outside, sewing the upper.

6, post lining, wrapped in sponge.

7, non waterproof shoes: only after the car;

It is necessary to reverse the connection between the tongue, the back and the inside.

8, punch, shoe buckle.

The main concerns are:

1, cleanliness; 2, drop needle, jump needle, drop line, float line; 3, car wrong line; 4, toe nose, rear crooked; 5, nose car crooked, tongue and tongue on the wrong side; 6, leather and skin injury; 7, tongue and sponge fracture; 8, margin too large, the route is not smooth; 9, left and right parts are not symmetrical; 9, leather color difference; 10, embroidered pattern embroidered skew; 10, high frequency pressure is not in place; 10, front and rear lining is not in place, drop lining; rear and rear sponge is not uniform; Hou, rear sponge is not in place;

Four. Molding

Molding process:

1. the preceding paragraph: materials, materials, shoes, shoe last, brush, harbor, treasure, water, shoes, belts, cars, nets, feet, brushes, white glue, and white glue.

2, the middle part: the bottom of the material is broken, the bottom is broken, the glue is broken, the base is two times, the bottom is glued, the bottom is two times, the bottom is pressed, the machine is pressed, the edge is freezer, the shoe is untied.

3., the following section: the surface of the material, the lining paper, the drying line, the shoelace, the upper sole, the cleaning shoe, the label, the hanging tag and the inner box.

The following are the instructions for each specific process.

Brush harbor treasure water: strengthen harbor treasure hardness.

Allocate suitable proportions of port treasure water.

General fast drying: toluene ratio of 7:3, temperature and material can be adjusted according to the appropriate proportion.

Gently pull the inner collar and wipe it evenly with the brush.

Not too much to prevent infiltration and pollution.

Hong Bao water should not be brushed to the upper part of the shoe.

Lace should not be tied too loosely or tied too tightly.

The foot of the car is: the vamp is fully occupied by car, with a distance of 3-5mm.

Double check: check the size of the left and right feet.

The size of the shoe toe, the height of the back sleeve and the size of the help feet must be the same.

If printing or anti fur face is chromatic aberration, all pairs should be placed one by one.

Brush the white glue: brush the white glue along the edge of the shoe 10-12mm.

Even in place, the shoe must be the same as the last.

Brush at the bottom of white glue: medium plate fine cloth around the location of a circle of white glue, width of about 12-15mm, the other side of the front palm and heel brush once a white glue.

At the bottom of the bottom, the white glue is brushed before and after the bottom, and the position is consistent with that of the middle plate brush.

Climbing front: the heel height is good first, and the inner collar exposs the middle plate.

Place the last shoe on the supporting table and aim at the center point of the first claw.

Shoes must be straight, with toe ends, eye sleeves and heels at the center point in a straight line.

Sweep the knives for at least 3 seconds.

The size of the toe must be the same as that of the sample.

Pull the waist Gang: first aim at the heel height mark point, and the back sleeve must be higher than the middle plate.

First pull the waist, waist smooth, paste last.

When you pull your waist, you must not wrinkle your shoes.

It must be right. Generally, the waist is higher than the waist.

After climbing, the height of the heel must be marked with the heel height.

Hong Kong Bao and inner collar must climb into the middle plate.

Do not turn corners, wrinkle.

It takes at least 3 seconds to sweep the knife.

Draw line: adjust the line drawing machine pressure, choose the right hydrolytic pen or silver pen.

The arc of the wire drawing die pad must be in line with the radii of the bottom.

The bottom die is not available.

When drawing the line, circle the circle along the big bottom edge.

The shoes should be placed straight, not skewed, the height of the left and right feet, and the size of the feet should be the same.

Rough: vamp is PVC material, do not rough, only the heel of the toe can be grind.

PU material should not be damaged.

The roughing of the dermis should be done according to the drawing line position.

Rough must be in place, but not over line; rough powder should be treated cleanly.

Rough is to make glue better penetrate into the material, the material will be more flexible.

Sulfur addition: stabilizing effect.

Straighten out the tongue, check the semi finished products with OK and put them into the sulfur tank. The shoes should not collide with the hanging basket to avoid breaking or dirty the shoe upper.

The sulphur temperature is 80 degrees -110, and the time is 115-17 minutes.

Face breaking: means cleaning the upper with potion.

Choose the potion that is in conformity with the quality. The potion must be evenly washed and placed in line with the drawing line.

The potion should not be spilt over the vamp. The anti fur liquid should not exceed the drawing line.

Bottom break: to clean the sole with potion.

Choose the potion that is in conformity with the quality. The potion must be evenly washed and washed in place.

The potion should not spill over the surface of the side wall.

One time glue: according to the line position, brush in place, do not exceed the drawing line; shoe upper can not be glued; glue can not pollute the upper.

Once the base glue: brush the glue in place, do not spill over the big bottom wall, do not pile glue, glue can not be accumulated in the big bottom, so as not to rot the sole.

Two times glue: press glue line, do not exceed one time glue line.

Two base glue: same bottom glue.

Affixed to the bottom: the number of the vamp, the last type code and the large base code should be consistent, and there should be no error.

Look at the center point. First stick the toe cap on the heel, do not glue or glue.

The vamp and the sole will fit well within 40 seconds of leaving the oven.

Upper freezer: stable type.

Product inspection OK semi finished shoes with double put in freezer, shoes neat, can not squeeze collision, in order to prevent damage or dirty shoes.

The temperature is 4 -5 C, and the time is 12-17 minutes.

After leaving the freezer, there is no water on the vamp.

Pull last: adjust the height of the pullout machine's belt, make the back and bottom of the shoes evenly stressed.

Lining: check the finished product SIZE first and smooth the corresponding lining into the shoe.

The shoe toe must be in place, not left or right.

Stopper: according to customer's request.

(to keep shoes from becoming deformed).

Vamp cleaning: wash the vamp stains, print water line and hydrolytic pen line with the grease.

Do not use toluene to wash; anti fur material can not stick to any treatment agent; vamp should not be rubbed vigorously to prevent fading.

Clean the floor: clean the large base stains with the grease.

Do not rub hard so as not to smooth the floor and shine.

Do not use quick drying toluene.

Remove the glue thread: remove the glue line from the edge of the base by removing glue stick or raw rubber block.

Do not damage the vamp and sole when you are clear.

Hang tag: the tag should be hung in the position requested by the guests according to the SIZE, color and number.

Double knot: according to the customer's requirement, do you have a double?

Small package: the inner box must be used in the correct paragraph.

Packaging paper, material, color and desiccant should be used according to customer requirements.

The placement method of finished shoes is also in accordance with customer requirements.

After molding, the main points are as follows:

1, cleanliness;

2, outside harbor treasure hardness;

3. Do you have wrinkles on the sides?

4. The adhesion of the bottom.

5, matching double cases;

6, packaging.