Bending size of the mold, no unloading, uneven feeding, poor riveting
Bending size
a. The mold is not adjusted in place, resulting in angle error, which causes dimension deviation, poor closing height or poor angle difference b. Insufficient elasticity leads to poor angle, resulting in dimensional deviation Replace the spring c. The material does not meet the requirements, resulting in poor angle, which leads to size change or re adjustment of gap deviation d. Poor angle caused by material thickness deviation determines the material thickness due to size deviation. Replace the material or readjust the gap difference e. Size deviation caused by improper positioning Adjust the positioning to make the size OK f. Design or processing errors cause repair welding and grinding between the bending male parts, eliminate the gap between the parts, and lead to small bending size~ g. There is no R angle for forming, and the bending height is too small under the angle and other normal conditions for forming the common R angle h. The bending size on both sides is too large
Unstable size caused by unilateral bending and drawing, increase spring force, and adjust positioning
j. Unreasonable clearance, resulting in poor angle and dimension deviation k. The height of the folding knife is not enough. The bending punch is too short to close the folding knife. The height of the folding knife is increased to make the bending punch close to the folding knife position as much as possible, causing more bad angles l. When bending, the speed is too fast, causing deformation at the bending root. Adjust the speed ratio and select a reasonable speed m. The structure is unreasonable, the folding knife is not inserted into the fixed template, and the groove is milled again. When the folding knife is inserted into the template for stamping, the gap becomes larger n. The hardness of the forming male during heat treatment is not enough, resulting in the collapse of the pressing line or the flattening of the reshaping male pressing line
No unloading
a. Improper positioning or feeding Adjust the positioning or feeding device b. Refuge position is not enough, repair and grind the avoidance position c. The inner guide pillar is strained, which causes the blocking movement to be impeded. Replace the inner guide pillar d. The punch is strained or the surface is not smooth Replace the punch e. Unreasonable layout of ejector pin Relocate the position of ejector pin f. The ejection force is not enough or the stripping force is not enough. Replace the ejection spring or stripping spring g. The punch and the splint don't fit smoothly. Repair the punch and the splint to make the punch fit smoothly h. The formed slider does not fit smoothly. Trim the slider and the guide groove to make them fit smoothly
The stamping heat treatment is not suitable, and the deformation occurs after stamping for a period of time. Grind the stamping again, and correct the deformation
j. The punch is too long or the length of the ejector pin is not enough. Increase the length of the ejector pin or replace it with a punch with a suitable length k. Punch break Replace the punch l. The template is not magnetized, and the workpiece is demagnetized upward to the template
Unsmooth feeding
a. The mold is not upright, resulting in the material belt not in the same line with the feeder and the mold to re frame the mold or adjust the feeder b. Uneven belt leveling machine or material replacement c. If the feeding is not smooth due to non unloading, refer to the non unloading solution Die maker magazine WeChat attention! d. Positioning is too tight Adjust positioning e. The guide pin is too tight or the straight wall position is too long Adjust the guide pin f. The punch is not fixed well or is too long to interfere with the strip. Replace the punch with a suitable length and fix it again g. The ejector pin is too short, and the strip interferes with the forming block. Adjust the length of the ejector pin to avoid interference h. Improper arrangement of floating block position Adjust floating block position
Poor riveting
a. The closing height of the die is improper. The riveting is not in place. Adjust the closing height b. The workpiece is not put in place, and the positioning deviation is adjusted for positioning c. Before riveting, confirm whether the riveting hole is chamfered by referring to the countermeasures for solving the defective workpiece. If there is no chamfer, increase the chamfer d. The riveting punch is not long enough. Replace it with a punch with proper length e. Confirm that the riveting punch does not meet the requirements and use the riveting punch that meets the requirements
Stamping parts on automobile body are generally divided into covering parts, beam frame parts and general stamping parts. The stamping part that can clearly represent the image characteristics of the automobile is the automobile panel. Therefore, the automobile die referred to by GATT can be said to be "automobile panel stamping die". It is called … Processing technology and characteristics…
Classification of automobile tire molds: Processing technology of automobile tire mould (taking mould as an example): Mold Classification and Processing Technology of Vulcanized Automobile Tire Vulcanized automobile tires are essential components of modern vehicles. They are made using a complex manufacturing process that involves several stages, including mold classification and processing technology. In this article, … Mold classification and processing…
What conditions should the cooling water design of plastic mold meet? 1、 The edge distance between water conveyance and product material level shall not be less than 10MM generally, and shall be designed between 10MM and 12MM as far as possible; Alloy die is generally 25MM; 2、 The design of water transport margin and insert … What conditions should the…
It is very important to develop mold standard parts and implement specialized production of molds In recent years, the plastic mold industry has developed rapidly in China, which is followed by increasingly fierce market competition. After joining the WTO, foreign mold manufacturers enter the domestic market. To stand out in the fierce competition, it is … develop mold standard parts…
Plastic mold manufacturers focus on developing molds with high technology content In recent years, although the growth rate of mould export is greater than that of import, the absolute amount of increase is still that of import is greater than that of export, which leads to the increase of mould foreign trade deficit year by … Plastic mold manufacturers focus…
The four elements of mould include quality, delivery period, price and service In the four elements of mould quality, delivery cycle, price and service, more and more users put the delivery cycle first. It has become a trend to require mold companies to deliver products as soon as possible. Enterprises try their best to improve … The four elements of…
Rely on technical personnel to improve the design and processing level of mold enterprises With the improvement of the design and processing level of mold enterprises, mold manufacturing is mainly relying on technology instead of bench work in the past. This is not only the change of means of production, but also the change of … Rely on technical personnel…
Improper heat treatment process of mould is easy to cause failure of plastic mould The failure of plastic mould is mainly caused by improper heat treatment process of mould, such as improper selection of heat treatment process parameters such as heating temperature, holding time and cooling speed. During the processing of plastic mold, cracks or … Improper heat treatment process…
Causes of Shrinkage Marks at Thicker Positions of Plastic Mold Parts Shrinkage is more severe at thicker locations of plastic mold parts, such as rib or protrusion, than at adjacent locations, because the cooling rate of thicker areas is much slower than that of surrounding areas. Different cooling rates lead to the formation of concavity … Causes of Shrinkage Marks…
Which kind of mould factory is better for cooperation? Foreign capital or private At present, there are many foreign, Taiwan, Hong Kong and private mold factories to choose from in the Pearl River Delta and Yangtze River Delta regions of China. The advantages and disadvantages of mold factories with various qualifications are as follows. (1) … Which kind of mould…
How large is it better to cooperate with mold suppliers? Large scale, medium scale or small scale? The choice in this regard depends on the situation. If we only consider the scale of the factory, many people will think that the larger the scale is, the better, because the scale is large and the facilities … How large is it…
How to select mold manufacturers with complete supporting equipment It is suggested that you should pay attention to one basic common sense when purchasing, that is, you must choose a manufacturer with complete supporting equipment, that is, a mold factory with "five essentials", that is, you must have supporting precision CNC machining center, slow wire … How to select mold…
How can the company effectively reduce the cost of mold procurement? For cost control, first of all, it is necessary to understand the expected order quantity of new products from the personnel of the Marketing Department? Is it huge?In the development and review stage of new products, if the estimated order quantity does not reach … How can the company…
Pits to be avoided when purchasing personnel select appropriate mold suppliers (1) Never blindly believe in low purchase prices. There are always some traps hidden behind the low price, which are unknown to us. We can either pass the shoddy goods off as shoddy ones or cut corners. We should know that any mold factory … Pits to be avoided…
How to choose a reasonable plastic mold cooperation factory? Reasonable selection of cooperative manufacturers is often the first step to successMany customers are blind when they choose plastic mold manufacturers. Now many small factories on the Internet cheat customers after packaging. They often offer much lower prices than their peers to tempt customers to place … How to choose a…
The engineer designs the product considering the rationality of plastic mold making Product engineers need to consider the rationality of mold making when designing productsMany customers only pay attention to the design and R&D speed of products at the initial stage of new product development, ignoring the communication with plastic mold manufacturers, resulting in unnecessary … The engineer designs the…
The selection criteria for plastic mold manufacturers are quality, cycle, service and priceAlthough price is important, quality, cycle and service are indispensable When it comes to manufacturing plastic products, choosing the right plastic mold manufacturer is crucial. With so many options available, it can be challenging to determine which one to select. There are several … The selection criteria for…
One minute understanding of the eight steps of plastic injection molding Injection molding, also known as injection molding, is an injection molding method. The advantages of the injection molding method are fast production speed, high efficiency, automatic operation, a wide variety of patterns, shapes from simple to complex, and sizes from large to small. Moreover, … One minute understanding of…
How to Select Wear Resistant Die Steel for Precision Plastic Injection Molding Injection mold is a tool for producing plastic products; It is also a tool to endow plastic products with complete structure and precise size. Injection molding is a processing method used in batch production of some parts with complex shapes. In the process … How to Select Wear…
What are the common engineering plastics for automobile parts molds? With the development of automobile lightweight and the increase of automobile production, the amount of plastic used in automobiles is increasing. In recent years, the market demand for energy conservation and consumption reduction has been exerting pressure on the lightweight design of automobiles. In order … What are the common…