The out-of-case method is the comprehensive application of all the above knowledge (here is an example of the nominative case first and then the frame).
1. First, introduce (introduction means using a knife to cut the paper grid) a piece of paper that is larger than the length and width of the back panel.
2. Insert a straight line in the center of the paper as a number axis (cannot be broken, just fold it in half), fold it in half, and then use an iron leg of the garden ruler to make a roar directly above the number axis. Introduce another straight line (cannot be interrupted) as the second number axis, so that there are two mutually perpendicular number axes on the paper.
3. Fold in half along the second number axis and make a roar on the first axis. If the fold position is also on the axis of the other folded surface, the coordinate system is qualified and this piece of paper can be used to continue. In particular, if the coordinate system is unqualified, this piece of paper can be removed (coordinate system verticality test).
4. Measure the surface length and width of the back panel of the handbag, and take half of each plus the length of the paper opening as the coordinates. Measure the surface length of the back panel.
5. In the coordinate system, find the point with (129/16, 107/16) as the coordinates, and fold the coordinate axis in half to find the point (-129/16, 107/16 )(-129/16,-107/16)(129/16,-107/16)***Three points. Remove the excess paper along these points, and you will get the shape of a rectangular back panel. Its specifications are (129/16) × (107/16 × 2), that is, 251/8 × 211/8. Compared with its surface specification 24T/2×201/4, the length and width of this specification of SG are 5/8 longer each, that is, the length of two paper openings.
If the four corners of the back panel are arc-shaped, you can use a compass to find out its arc. For any other shape, use the coordinate method to solve it.
Sixth, according to the shape of the back panel, according to the structural triangle gap and position of the handbag, write various text marks on the back panel paper grid, and the end of the back panel is declared.
Seventh, use the main frame to create the front panel and large circle of the secondary frame.
Many front panels are an amalgamation of several pieces of material, with the same shape and size as the back panels. Therefore, the back width can be used to mold the shape of the front width combined material, but the structural rule is: rear width perimeter = total length of the large circumference. Once the rear width is determined, the rear width must be used to measure the total length of the large circumference. The width of the large girth can only be determined by measuring the handbag. The total length of the large girth = bottom girth + zipper girth; bottom width = zipper girth × 2. In this way, according to the order of drawing, use the paper grid to measure the paper grid to determine the shape of each paper grid, and mark the various marks of the paper grid until the paper grid is completed.
Handbags are three-dimensional, and the components cannot be taken down to touch out the paper grid. Although the finished paper grid can be picked up and compared with the original, the surface shape of the corresponding handbag components is at the paper exit. . In order to compare the two with each other, we can first make the dimensions according to the size of the surface components of the handbag, and compare the dimensions with the surface components of the handbag until the shape and size are the same as the surface shape of the components, and then use the length of a paper opening as the unit. Using a compass to enlarge the paper grid is a more practical and acceptable method.
* Application of ergonomics in handbag design
* 1. Design should take into account individual differences of people - gender, age, race.
* 2 Factors that must be considered in design - physiological and psychological
* 3 Design should consider the scope of use of the handbag - life and career.
*4 Design must consider people’s aesthetic taste—color, texture, and materials.
* 5 Design must consider people’s consumption level—the economic situation of the country and region.
* Application of ergonomics in handbag design
* ———Indicates wheel angle
* ======Indicates rubber stock
p>~~~~~~~~ represents a zipper
* Drawing principles and requirements
* 1. There must be a three-dimensional sense and the proportions must be restricted
< p> * 2 The pattern must be clear and distinct* 3 The wheel corner lines must be evenly rounded and clear and distinct
* 4 There must be angular restrictions on the front, rear, left and right
* 5. Craftsmanship Production must have location constraints
* Drawing requirements
* 1 Increase the understanding of handbags and better understand handbags
* 2 Indicate the paper grid requirements to make the special patterns clear Objectives
* 3 can provide management with a clear data basis
* 4 is the best means of publicity for marketing product advertising
* 5 can Provide good styles and basis for various production orders
* 6 three-dimensional drawings are flat design and special design
* Drawings for drawings
* Sketch of handbags and three-dimensional view
* Hard bags are mainly made of paper, soft bags are mainly made of materials and linings, and neutral bags are mainly made of materials and supporting glue
* Purpose classification
* Men's bags: briefcases, handbags, waist bags, large backpacks
* Women's bags: fashionable bags, small backpacks, mommy bags
* Mixed bags: Boxes, travel bags, schoolbags
* Material classification
* Cloth bags: waist bags and backpacks
* Genuine leather bags: briefcases, handbags, wallets and fashionable bags
p>* Artificial leather: briefcase, fashion bag, waist bag, small backpack, mommy bag
* Nylon material: travel bag, backpack, school bag, fashion bag
* Properties< /p>
* Hard bags, paper bags, boxes, briefcases, fashion bags
* Soft bags: fashion bags, mommy bags, backpacks, waist bags, leisure bags
* Unisex bags : Stylish bag, fashion bag, handbag
*
Brief description of handbags Handbags can not only hold objects, but also play a decorative role. The common basic shapes are: square, cylindrical, oblate square, oblate circle, triangle, fan shape, plane square, side three-dimensional shape, three-dimensional rectangle, plane trapezoid, three-dimensional shape, etc.
The production of handbags is ever-changing, but it remains the same. Its commonly used objects are:
Front and rear panels - refers to the front and rear main parts of the handbag.
Large body material-the front and back panels are connected to the bottom in one piece.
Body girdle - a single piece of side and bottom parts.
Horizontal material - refers to the side parts of the handbag.
Bottom girth - refers to the bottom component of the body, which can also extend to the sides.
Bottom material--is the bottom part of the bag.
Inner sticker - refers to the inner pocket parts of various bags.
Chain patch - refers to the component sewn on both sides of the zipper cloth.
Pasting - refers to the decorative parts of the bag and a means of reducing material loss.
The specific name can be called according to its location, such as front, back, left, right, upper, middle, lower, bottom sticker, inner sticker, horizontal head sticker, horizontal head circumference sticker,
Big body Surround stickers etc.
Ear material--used to fix square buckles, D buckles, iron ring clip connections, shoulder straps, and small parts of the handle.
Outer bag-refers to any small bag installed on the outside of the handbag.
Organ bag - refers to a bag with no bottom and only side panels. The side part of the bag is like an organ, and one or several middle compartments can be installed in the bag.
Zipper window - a component that uses a knife and fork chain window at the bag opening to form three or more spaces on both sides.
Middle compartment - refers to the compartment component in which the main bag of the handbag is divided into three or more spaces on two sides.
Shoulder strap material - refers to the parts used to carry, carry, carry and carry handbags. There are various design forms such as fixed, movable, single and double.
Handle material - refers to the parts used to carry handbags. There are single handles and double handles, with a medium height between four inches and six inches.
Handles - refers to the handles of various handbags and luggage, which are made of metal, plastic and leather.
Hijab material--The hijab has a bottom surface, the upper part is the covering fabric, and the lower part is the covering base material.
Lizi material - a small part that is put on the hijab, or can replace the relatively few parts of the hijab.
Edging material - refers to a process in which the edge of the material is loosened and a certain width of leather is wrapped on the edge. There are loose opening wrapping and single-turn wrapping. The double review is eloquent and eloquent.
Cord material - generally used on the rope material of the backpack bag mouth to fix the expansion and contraction of the bag mouth.
Chain tail material - refers to the part sewn at both ends of the zipper fabric to prevent the curtain fabric from unraveling.
(2) Lining:
Main body lining, front and back lining, middle lining, cover bottom lining, cover bottom lining, bottom lining, horizontal head lining, side lining Inside, bottom inside, chain sticker inside, inside and outside slip pockets, front pockets inside, side pockets, side pockets inside, front pockets, slip pockets,
Pockets inside, organ inside.
(3) Accessories:
Miscellaneous glue, pull-back glue, PE rubber sheet, sandwich (double-sided glue), leather bran paper, sponge, pearl cotton, cotton core, Non-woven fabrics, paper sheets, Japanese paper, kraft paper, webbing, elastic bands, chain cloth, spring ribs, rubber ribs, hoses, transparent gelatin, etc.
(4) Hardware:
Buckle types: pin buckle, square buckle, circle, Japanese buckle, pull button, D buckle, O-shaped buckle, I-shaped buckle, hook Buckle, key tag, key ring, side clip, etc.
Nails: impact nails, hollow nails, screws, foot nails, nipple nails, etc.
Button type: magnetic buttons (large, small, thick, thin, shadow shape, nail type). Emergency buttons (No. 4, 12*5, No. 5, 15 millimeters), hood buttons (No. 4, No. 5), four-button buttons.
Locks: combination locks, mortise locks, key locks, twist locks, push button locks.
Hinges: flat hinge, overlapping hinge, spring hinge, hexagonal hinge.
Other accessories: hardware marks, zipper pullers, chain tail hardware, corner hardware, metal, plastic chains, code corners, (metal handles, wood and bamboo handles, plastic handles,) shoulder strap head hardware , hand restraint seat, iron pipe, tie rod, pulley, rubber pad.
Chapter 2 Handbag length units and conversion relationships
(1) In actual length units, most of them use imperial length units. The imperial units are in base 8.
1, Inches: INCH Abbreviation: IN
Feet: FOOT Abbreviation: F
Code: YARD Abbreviation: Y
2, The relationship between them is: 1 yard == 3 feet 1 foot == 12 inches 1 yard == 36 inches 1 inch == 8 cents
1 yard == 91*44 cm 1 inch = =0*762 city inches 1 inch==0, 3175 centimeters 1 inch==2, 54 centimeters
1 square yard==0, 8359 square meters 1 meter==3 feet==3, 281 feet 1 foot == 0, 305 meters == 0, 914 feet
1 square meter == 10, 764 square feet 1 foot == 10 feet == 100 inches == 1000 points
1 meter == 10 decimeters == 100 centimeters == 1000 millimeters 1 meter == 1, 09375 yards 1 yard == 0·9143 meters
3·Inches are particularly important in handbags ” symbol is usually represented by “””
1 point == 1/8” == 0·125” 2 points == 1/4” == 0·25” 3 points == 3. /8”==0·375” 4 points==1/2”==0·5” 5 points==5/8”==0·625”
6 points==3/ 4”==0·75” 7 points==0·875”==7/8” 8 points==1”
Today there are many types of handbags. The most common ones we have are backpacks and briefcases. , cosmetic bags, ice bags, school bags, wallets, waist bags, pencil cases, CD bags, etc. The silver bags our company often makes are divided into short bags, long bags, hinged bags, zipper bags, broken silver bags, key bags, etc. Short bags are also divided into horizontal or vertical single bags, double-leaf bags, loose-leaf bags and tri-fold bags. . The main materials for making wallets include various genuine leathers, artificial leathers, nylons, etc. (Understanding the materials used is very important when we go out of our way). The main production techniques include single folding, double folding, wrapping, loose mouth, voltage, etc. So here we will explain the consistent practice of our company's out of the box, as well as some knowledge that needs to be mastered in the out of the box:
1. The definition of the handbag out of the box
The so-called handbag out of the box is According to the original board of the handbag (or design drawing, photography), using paper grid as material, designing the shape of the components of the handbag, and putting various marks on the paper grid components to indicate the handbag manufacturing method.
2. Responsibilities of the Chuge Master
First, make an overall structural analysis of the original board (or drawing) provided by the customer.
Second, analyze the shape of the components of the original board (or picture).
Third, the relevant information that makes up this bag includes:
1. The number of paper grids. 2. Specifications, colors and quantities of hardware and plastic sealing materials. 3. Number, specification and quantity of zippers and webbing. 4. Hemming and bone specifications.
3. Special tools
1. A steel ruler in inches or centimeters.
2. A soft measuring tape in inches or centimeters.
3. One garden rule.
Four. A knife (including blade).
5. One pencil and one eraser.
6. Some 250P paper.
7. Workbench
8. The specification is 100×50 cm with a rubber pad.
9. Position the iron piece.
10. A movable stool.
The above is a set of handbag special tools that every special staff member must have when working.
4. Use of special tools
1. Steel ruler: 1. Used to measure the length of straight, hard materials. 2． Dot it with the lower left corner. 3. Intermediate line
2. Soft measuring tape: 1. Measure the length and circumference of curved, wrinkled, and soft materials.
3. Garden rules: 1. Draw an arc. 2． Enlarge the paper grid. 3. Punch. 4. degree position.
Four. Introduction: 1. Hit the cross position. 2． Paper grid.
5. Pencil and eraser, draw up or modify the pattern.
6. 250P paper, special material.
7. Rubber pad: a padding material used to keep the paper grid blade straight and protect the desktop when the paper grid is out of order.
8. Positioning iron: When two pieces of paper overlap, use a positioning iron to fix the position to prevent displacement.
9. Table: special support.
10. Movable stools: Special personnel need to stand and sit sometimes, and they need to move from all directions. The stools must be movable.
Things to note when inserting paper with a knife:
When holding the knife, hold it with your hand and press it down
When using the knife to insert paper, press it with your left hand. Hold the center of the steel ruler, hold the knife in your right hand, the edge of the knife is close to the edge of the steel ruler, and the direction of the pulling force is straight towards the direction where the person who is out of line is standing. If the force is to the left, the steel ruler will be displaced; if the force is to the right, the insert knife will break away from the edge of the steel ruler, and the paper grid under both will be unqualified.
5. Special knowledge
1. Understanding of yards, feet, inches and minutes
The steel rulers and soft tape rulers used by many handbag factories are measured in inches. To make units, we must have an understanding of the British length unit system.
Code: English YARD, represented by the letter "Y".
Foot: English FOOT, represented by the letter "F" or "'".
Inch: English INCH, use the letters "IN" or """.
The conversion relationship of the rate:
1 yard = 3 feet
1 foot = 12 inches
1 inch = 8 cents (especially remember)
1 cent = 1/8 inch
1 /2 cents=1/16 inches
1/4 cents=1/32 inches
1 inch=2.54CM
2 How to measure handbags Length
Handbags are a special technical task that requires high precision. According to its raw materials and structural characteristics, the following matters should be paid attention to when measuring the length:
1. The object to be measured. It is required to place it flat on the table and measure its natural length. The actual material is absolutely not allowed to be stretched, because many handbag materials are stretchable, otherwise the measured length will be longer than the real thing.
2. To measure the distance between two parallel lines, the steel ruler must be perpendicular to the two parallel lines. The starting end of the steel ruler can be fixed on one parallel line and the other end moves above the other parallel line. The shortest scale obtained is two The distance between parallel lines, because the vertical line segment is the shortest.
3. The starting point of the ruler should coincide with the line position. If the line position cannot be seen in the bone bag, the starting point should be from the center of the bone and the end point should be on the opposite side. Line position or bone center shall prevail.
1. Raw material inspection (IQC)
l The original incoming factory inspection includes three aspects:
① Inventory inspection: Whether the product name, model, quantity, etc. of the raw materials are consistent with the actual situation is generally completed by the warehouse management personnel.
②Quality inspection: Check whether the physical, chemical and other properties of the raw materials comply with the corresponding raw material inspection regulations. Sampling inspection is generally used. < /p>
③Trial inspection: Take small batch samples for production and check whether the production results meet the requirements.
lHandling of unqualified incoming materials:
①Identification: Mark "unqualified" on the outer packaging, place it in the "unqualified area" or hang a "unqualified" sign, etc.
②Disposal: return or transfer or other special purchases.
③Corrective measures: Provide relevant requirements or suggestions to suppliers to prevent the recurrence of batch failures
2 Emergency release: Due to urgent production needs, materials that need to be used before the inspection report is released are. Emergency release. Samples must be kept for inspection, and the released materials must be specially marked and recorded for tracking when necessary.
3 Special procurement:
① Purchase materials from non-qualified suppliers - strengthen inspection.
② Materials used due to unqualified inspection - selected or repaired for use.
4 Special attention should be paid to the losses caused by substandard products:
① It was discovered during the investment stage that the loss cost was 1 yuan.
② During the production stage, it was discovered that the loss cost was 10 yuan.
③ Found in the hands of the customer, the loss cost is 100 yuan.
2. Process inspection (IPQC)
lIPQC inspection scope includes:
①Products: quality of semi-finished products and finished products.
②Personnel: The operator’s process execution quality and equipment operation skills are poor.
③Equipment: Equipment operating status and load level.
④ Process and technology: Whether the process is reasonable and whether the technology meets the product characteristics requirements.
⑤Environment: Whether the environment is suitable for product production needs.
2 Process product inspection: There are great differences and flexibility in the inspection methods for product inspection. The inspection methods can be more flexible based on the actual production situation and product characteristics.
Full inspection by quality inspectors: It is suitable for process products with multiple varieties, small batches, and fatally defective items when key processes are being transferred. If the workload is large, if the work is qualified, it will be allowed to be transferred to the order or stored in the warehouse. If it is not qualified, the operating staff will be required to immediately rework or return for maintenance.
Sampling inspection by quality inspectors: It is suitable for process products that are in large quantities, have low unit value, and have no fatal defects when the process products are transferred to the general process.
Employee self-inspection: Operators conduct self-inspection on the products they process first. Only after passing the inspection can they be sent to the next process. It can improve the pass rate of product circulation and reduce the workload of quality inspectors. It is difficult to manage and control, and sudden abnormalities may occur from time to time.
Mutual inspection of employees: Operators in the next process inspect the products of the employees in the previous process, and they may not accept defective products from the previous process. Mutual supervision is conducive to mobilizing enthusiasm, but it can also lead to cover-up, Noise, etc. may cause abnormal quality.
Combination of multiple methods: organically combine various inspection plans to learn from each other's strengths and prevent defective products from flowing into the next process or into the warehouse, but the inspection cost is high.
3 Process quality inspection: Inspection of personnel, equipment, technology, environment, etc.
3. Finished product factory inspection (OQC)
Factory inspection must be carried out before finished products leave the factory, in order to achieve the goal of zero defective products leaving the factory, customer satisfaction and zero complaints.
Inspection items include:
① Finished product packaging inspection: whether the packaging is firm and meets transportation requirements, etc.
②Finished product identification inspection: such as whether the trademark batch number is correct.
③Finished product appearance inspection: Whether the appearance is damaged, cracked, scratched, etc.
④Finished product functional performance inspection.
If the batch is qualified, it will be released. If the batch is not qualified, it should be reworked or repaired in time until it passes the inspection