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How to choose suitbale coil feeder machine?
The modern metal stamper must build capacity and flexibility into his coil-processing and stamping machinery to meet the challenges presented by evolving product lines and new customers and markets. These overlying challenges present a substantial obstacle when specifying a new straightener. The stamper faces fundamental decisions early in the game related to the ability of the straightener to handle a variety of applications.For example, a straightener with seven 100mm dia. work rollers located on 170mm centers, and given adequate power and gears, will straighten 6mm.-thick cold-rolled steel. The same machine will have minimal effect on 1.2mm. cold-rolled steel. Likewise, a straightener designed with seven 76mm dia. work rolls located on 127mm. centers will effectively straighten the 1.2mm thick steel but will lack the horsepower and roll strength to process 6mm material. If an application calls for this type of variation in material thickness, a fundamental decision must be made in regards to the cost effectiveness of building a special machine to meet the full spectrum of needs, versus building a standard machine that will provide optimum straightening at either the light-gauge or heavy-gauge end.Stampers also must consider the maximum width of the material and machine, and the range of material thicknesses to be processed. As straightener width increases so does the tendency for work rolls and journals to deflect under load, thus impacting the machine’s ability to process material with a defined thickness and width. This deflection can result in a loss of contact-surface area, decreased straightening efficiency, material slippage or broken work rolls.Note: Do not request a machine capable of processing wide material without considering the effect that narrower material will have on the machine. A machine rated to straighten 1200mm wide by 3mm -thick steel may struggle to process the same thickness of steel, but as 300mm wide strip. The cross section and strength of the 300mm material is substantially less than the 1200mm. material, but the straightener rolls most likely will experience a greater amount of deflection when running the narrower material, as the forces and stresses are concentrated at the roll center. This area is furthest from the end journals and bearings that support the rolls. (A single row of backup rolls would allow the machine to efficiently straighten the narrower material.)
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The 3in1 feeder refers to a special equipment for stamping or blanking of metal coils. Specifically, one equipment includes three functions: unwinding, leveling (straightening), feeding, and pressing against punching or shearing during installation. The machine is simple, easy to operate and saves space.The characteristics of the three-in-one feeder are:First, the operation is convenient, the automatic mode is adopted for feeding, feeding and feeding, which realizes automation, greatly saves labor and reduces safety risks;Second, the structure is compact and the space occupied is small. The split type stamping production line needs to reserve the waiting area between the machine and the machine table, especially the material above the middle plate, which is often laid about 10 meters. Some even need to dig the ground for the ground, and the precision three-in-one feeder The structure is compact, and the floor space is fully utilized compared to the traditional separate and independent stamping;Third, the leveling effect is better, and the corresponding finished product quality is better. The split stamping production line consisting of a single material rack, leveling machine and feeder is a completely separate three equipment, and there is a waiting area between each equipment, which makes even if each equipment is installed. Inverter, its operation and matching can not be completely synchronized, and ultimately more or less will affect the accuracy requirements of leveling and feeding, and the precision three-in-one feeder integrates the rack, leveling and feeding into one machine. This makes the machine's matching achieve complete synchronization, photoelectric material arc control system, the feeding line height adopts advanced worm gear adjusting device, which truly ensures the leveling feeding accuracy;Fourth, the import of core components, a complete lubrication system, comes with self-test procedures, the failure rate is extremely low. For example, the servo motor and electronic device have perfect lubrication system and self-testing program, which makes the whole machine wear very little and the maintenance is very simple and convenient.According to the thickness of the material, the three-in-one feeder is roughly divided into three types: thin plate, medium plate and thick plate. It is divided into economical, practical and high-matching according to the actual use requirements of customers.The thickness of the material is between 0.3-3.2mm, the middle plate is between 0.6-4.5mm, and the thick plate is between 1.0-10.0mm. The three-in-one feeder equipment is mainly used in auto parts, motorcycle parts and households. Electrical appliances, motor stator and rotor stamping, shelf punching and so on.
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There are many feeders that can be used in conjunction with punch presses. Air feeders, roller feeders, NC servo feeders, clip feeders, etc. Customers are increasingly choosing in the purchase. It is an NC numerical control feeder. Many customers also have doubts that the NC numerical control feeder is more expensive than the air feeder and the roller feeder. It is slower than the clip feeder. Why do more and more punch presses choose the CNC feeder? Fundamentally speaking, because compared to other models of feeders, NC servo feeders have a number of advantages:1. The feeding step has a wide range and can be fed in multiple stages. The NC numerical control feeder has a wider range of applications. Feeding step is one of the key factors of stamping processing. If air feeder, roller feeder and clip feeder are selected, the feeding step will be limited after the model is selected, the range is very small, and NC control feeding The machine is different, the feeding step can reach 0-10 meters, one machine can meet a variety of processing modes, but reduce the investment cost of customers.2. The operation is simple and intuitive, the professional requirements are not strong, and the investment and labor intensity of the customer's labor cost are reduced. The NC control feeder's step setting and number setting are all simple digital input on the touch screen. One person can operate several automatic punching machine production lines, and the labor cost has been greatly reduced.3. The CNC feeding machine has higher feeding precision, good stability and improved precision of stamping finished products. Jinzhide NC numerical control feeder adopts Japanese Mitsubishi servo motor to directly drive the feeding roller to achieve precise feeding, ensuring high feeding accuracy. Compared with other transmission forms, the CNC feeding machine has better precision and makes the finished product quality. better.4. Low failure rate, good stability, easy maintenance and maintenance, reducing the overall maintenance cost. NC NC feeder only needs to wipe the machine simply, without the need for frequent maintenance and replacement of the seal ring like the air feeder, and it is not necessary to adjust the eccentric wheel, the length of the rod before each boot, and check like the roller feeder. The fastening of each screw.
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The Guide of Straightener roller setting
The guidelines for establishing proper work roll depth settings tend to vary as much as the potential variations in material types, thickness, and width. For the purpose of these examples we will assume the use of a seven roll straightener with three adjustable upper work rolls. The recommended roll depth setting is also referred to as amount of penetration relative to the nominal material thickness. For example, if the material is .125” thick, 100% penetration is at the zero position of the work roll, 50% penetration is at .063” above the zero position of the work roll, and 0% penetration is at .125” above the zero position. As a guideline, the first work roll should do the most straightening work, with each successive roll set to a declining amount of penetration. Regardless of the number of upper work rolls, you should be able to draw a straight line through the center of each upper work roll when the machine is initially set-up. This guideline is demonstrated in Figure
Following are some recommended starting points for straightening MCRS. Some trial and error may be required to obtain an acceptable level of flatness for your specific material. Once again, the variables of material type, thickness, and yield strength combined with the work roll diameter and center distance spacing create a wide range of potential settings.
It is important to use the minimum roll penetration which will produce an acceptable level of flatness. Excessive roll penetration will cause poor straightener efficiency, cause material to slip across the straightener, and ‘place unnecessary strain on the machine drive components. A quick visual check of the flatness can be done before the material is run into the loop area. Use the threading table or similar device to support the leading edge of the material as it exits the straightener. Fine tune the work roll settings to the minimum depth required to give the leading edge a slight upward bend. Document these settings for reference and correct set-up the next time the material is processed.
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How to select a suitable press feeder?
Consider your coil material, strip width, strip thickness, feeding length, feeding speed and precision requirement.Usually, you need to know what product you want to manufacture with metal stamping line.Next, you are going to confirm the dies (progressive dies, single stroke dies, etc).Then, you will select the suitable press for the dies (tonnage, stroke, speed)After this, you will select your press feeder (material, strip width, strip thickness, feeding length requirements, and feeding speed requirements)
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