Operation Instructions of high-speedAutomatic Double-blow Cold HeaderSHIXI ENTERPRISE ORGANIZATION★2004 ★CONTENTSPREFACE……………………………………………………………(3) A、Use range and performance of cold header (4)B、Main technology specifications of cold header (4)C、Structure and transmission of cold header............(5) D、Structure introduction of cold header..................(5) E、Lubrication and electricity of cold header.........(7) F、Various members Adjustment of cold header (8)1、Adjusting of feedingmechanism (8)2、Adjusting of cuttingmechanism (9)3、Mounting of cutting knife and diecavity (11)4、Adjusting of punch and die horizontalposition (11)5、Adjusting of knock outmechanism (12)6、Adjusting of punch bigslide (14)7、Adjusting of punch liftmechanism (15)8、Points for attention about usingheader (17)PREFACEFastener is a common use part of all trades and professions of national economy. Shixi companymainly manufacture various high-speed automatic cold header and thread rolling machine for many fastener manufacturers.Shixi company founded in 1980, it was organized as Shixi Enterprise Organization in 1991. Now, the Organization is a united economic leaguer body dealing with researching、developing and manufacturing. In 2000, it obtained the international attestation of ISO9001, In 2003, Shixi Enterprise Organization was awarded“high &new technology enterprise”by the science & technology bureau of Guangdong province. At the same time, Shixi’s 2 die 3 blow parts former obtained special class prize of whole nation trades.In order to make things convenience for the user. Our company edited and translated《Operation Instructions of High-speed Automatic Double-blow Cold Header》.This 《operation instructions》includes main performance & technology data、structure & operation principle、use method and adjustment、maintenance、trouble elimination and so on.This 《operation instructions》is suitable for 2D3B、SX-20A、SX-20B、SX-5A、SX-K20A、SX-K5A type cold header that our company manufactured.Because it is pressed for time, and translator & editor are limited by level, incorrect expression are hard to avoid, we hope you’ll not spare your comments.Editor: Shixi Enterprise Organization Dongguan Guoling machinery Co.Ltd.Translator: Guangdong Screw Machinery SellingCompany (SWH) CHINA.May. 18,2004A、Use range and performance of cold headerCold header is a machine that manufacture various shapes blank of bolts、Screws and rivets with high quality wire rod. The manufacturing process is full automatic from feeding、cutting、transferring、heading to knock out blank.（high quality wire rod is a material that headed bolts screws and rivets without crack .）B、Main technology specification of cold header(Notes: 2 Die 3 Blow Parts Former Series can also mount such as: computer control device、brake system、P. K. O. device. Stripper device and so on. )C、Structure and transmission of cold header.D、Structure introduction of cold headerA heading machine consists of many members as follows：a)Wire rod straightening deviceb)Feeding devicec)Stopping block deviced)Cutting and transferring mechanisme)Punch lift mechanismf)Upsetting mechanismg)Knock out mechanismh)Transmission systemWhen cold header working, the wire rod that put in the wire stock via straightening device consisted of 5 rollers, then via press blank wheels, wire rod is continuously transmitted up to stop block device and cut off by shearing knife, then transmitted to die cavity hole (headed position) by shearing lever. It is formed into cone shape (i.e. near to finished product) by initial punch of the punch big slide, then using precise punch form into required head shape of the product. Finally the product knocked out by knock out device, and drop into product-box. This is full process of heading operation.Operation of heading mechanism is driven by belt pulley of motor & crank, and carrying connect lever, and via piston driving big slide. Operation of other mechanism is driven by cam shaft or eccentric device, rotating of the cam shaft is carried by mated gears (drive ratio i=1:2)and crank.Feeding mechanism mainly consists of two parallel shafts、connecting lever and feeding rollers. Eccentric wheel carrying swing part and the pawl driving ratchet, ratchet device is discontinuously made to feed wire to header. The feeding length is decided by eccentricity of eccentric driving wheel.Shearing operation is finished by shearing knife, shearing lever carrying shearing knife to do reciprocating remove, it is finished by slide of shearing device driving roller in chute. Because roller in chute put on one end of shear Lever, slide is driven by eccentric small shaft of rotating disk of cam shaft.Heading operation of punch is finished by up and down two punches, and preforming & finish upsetting to blank in turn. Up and down remove of punch lift slide is finished by lift cam carrying lift big plate、lift swing parts and lift plate of punch.After heading finished, the headed half-finished product is knocked out by ejector pin in die cavity. Once this heading process has finished, next heading process start repeatly.Heading speed is decided by finished product length. Belt pulley of main motor have two class belt groove. If heading shank length is more then medium length, you should select lower speed belt groove.E、Lubrication and electricity of cold headera)LubricationOur header lubrication use high pressure inject-type lubrication, i.e. lubricating oil flowing from high pressure pump forcedly inject into all lubricant points. Thus, oil film between relative motion parts can keep in long time, however, good film can be kept by oil continuously flowing and replacing of oil.Thus, mechanical impurity between motion parts are continuously cleared away, machine life is prolonged greatly, and as oil film have cushioning effect, lower noise of our header make operator feeling well.Few of frictional points that can not automatically inject lubricating oil still require lubricating with oil-can.Header is equipped with unrefined oil filter and refined oil filter in oil route, it need often to clean for keeping cleanness of mobile oil.Mobile oil is usually 20# or 30# industrial mineral oil.b) Electro circuit drawingF、Various members adjustment of cold header1)Adjusting of feed mechanismRotating adjust screw rod being capable of removing eccentric slide, thus can adjust feeding length.If feeding rollers are too loose, you can tighten compression spring, if feeding rollers are too tight, you can rotate proper loose compression spring.2)Adjusting of shear mechanismWhen heading shank length is different, first, need adjusting stop blank device, if shank of the part is longer, stop block is adjusted to far feed die holder direction, otherwise, stop block is adjusted to near feed die holder direction.In general, adjust of shear mechanism is mainly for adjustment of shear adjust disk. If shank of the part is longer, shear adjust disk toward anticlockwise rotating, if shank of the part is shorter, shear adjust disk toward clockwiserotating.When adjust eccentric shaft position, ought to notice after cutting off blank, the blank should be accurately transferred on axial line of die cavity hole.While blank is thrust in die cavity hole, shear knife must leave in time to avoid colliding with punch. Particularly, when heading shorter blank, ought to notice the accuracy of adjusting retract.According to accumulate experience to adjust eccentric shaft position of shear disk, after completing the adjustment,don’t start on operation at once, you should turn to flywheel with iron stick for many circles. Only when you think the machine is under normal conditions, you can start the working. When adjusting shear knife position, you can simultaneously adjust groove of shear lever and adjust screw socket.3)Mounting of shear knife and die cavity4)Adjusting horizontal position of punch and dieWhen horizontal position of first and second punchdon’t coincide with heading axle line, need turning loose lock nut and bolt, lead punch to remove in horizontal direction, when once reaching the required position, tighten the lock nut again.First & second punch are fixed with lock bolt of dragging punch. If you take off punch, only need turning loose nut of lock bolt.5)Adjusting of knock out mechanismWhen heading product, as shank length is different, thus knock out mechanism should also have appropriate stroke, according to shank length of the product to adjust the stroke.When adjusting knock out mechanism, first turning flywheel to carry cam shaft and cam. the cam that is in minimum radius position driving roller, the roller drive ejector pin tripod and knock out slide rod. Adjust bolt of knock out slide rod end to drive ejector pin swing part, knock out slide rod、ejector pin and other parts aught to close together, it can not have any clearance between two parts. This time, you insert required blank into the die hole, then using special sampler and measuring tool to measure the blank length that stretch out the die surface. When you think it conform with the demands, limited screw is turned against ejector pin swing part and is locked, then adjust bolt is turned in an opposite direction in half circle, maintaining a little clearance between adjust bolt and ejector pine swing part, then fastening adjust bolt. After you think the adjustment is appropriate, turning the flywheel to knock out the blank from the die. When turn up to maximum knockout position, pay attention to ejector pin swing part whether make cam top unable to turn round the roller.If happen this condition, adjust bolt should be draw back, and increase clearance between adjust bolt and ejector pin swing part, to make cam regular to revolve. About adjust beginning knockout time, after cam saw tooth plate should be revolve up required beginning time, fixing the cam saw tooth plate.6) Adjusting of punch big slideWhen manufacturing product of different diameter ordamaging die and tool, need replacing the die or punch. Replacing punch must adjust for shaft position of big slide under normal conditions. But clearance between die and punch must be moderate size, making machine able to run normally.If you want to adjust big slide forward near to the die, first release small lock nut and piston lock nut & bolt, then turning adjust screw socket and making it to go up, big slide can be adjusted up to required position, then tightening screw rod fixing nut, finally, retighten big lock nut and piston lock nut.If you want to adjust big slide rearward departing from the die, using the same method, first release small lock nut and piston fastening nut & bolt, then turning adjust screw socket and making it to go down, this time there is a clearance between big slide and piston, then tighten piston fastening bolt for eliminating the clearance, finally retighten big lock nut and piston lock nut.Big slide is adjusted towards the front or the back, under normal conditions, operator is unable to finish in one time, need gradually adjusting for two or three times.7)Adjusting of punch lift mechanismSpring frame of lift mechanism mounts in the right hand side of cold header, it adjusted well as leaving the factory, thus, operator need not adjust it to prevent messing caused by unskilled operation, making machine unable to work normally or damaging the members of machine. In fact, when our cold header put into use, if need adjusting punch lift position, only require a very little adjustment, may only adjust up & down limited bolt, need not adjusting the parts of spring frame. But, in order to operator understands working principle of spring frame of lift mechanism, for this reason, we only tell you the working principle about it.Two lift touch rollers of spring frame are driven by cam on inside of cam shaft gear, the spring frame is slid in front and back under limitation of lift big copper slide plate. When removing in frontward, traverser at the center of spring frame drive spring, the spring drive lift spring long jacket, the lift spring long jacket drive two lock circular nuts. Through screw rod carrying slide, the slide carrying lift swing part to make punch slide plate to go up. When rising punch is limited by limit nut, the spring frame continuously remove towards the front.This time, the spring is compressed by two small lock nuts and lift spring long jacket, because lift swing part、slide and screw rod are all in quiescent state, therefore, when adjusting small lock nut, need not excessively compressing the spring to make the spring to lose elasticity for fatigue.When spring frame removes in backward, the big plate tail screw socket drive lift spring, the lift spring drives lift spring short jacket and lock circular nut. Through screw rod carrying slide result in lift swing part to swing in downward. This time, punch slide plate removes in downward, up to touch with lower limited bolt of punch, the spring frame still continue removing rearward. At this time, lift swing part、slide、short removing jacket and screw rod are all in quiescent state, the spring is compressed by big plate end screwed socket, so you should proper adjust big plate screw socket.8) Points for attention about using headerBefore starting a machine, first turning flywheel by hands or pushing“point starting”push button, making flywheel to rotate 2 circles, if the machine is running well, you can start the machine. First starting oil pump, then starting main motor, at same time, the place which can not automatic lubricate inject oil by oil-can.After starting the machine, you need watching whether there is enough feeding length (i.e. feeding wire rod whether get in touch with stop block), if can not, first checking whether feeding rollers are too loose, if so, you should proper press & tight the spring, if not, you should check and find another cause.You should check blank whether accurately thrust in the die hole, if not, need going on adjustment for shearing mechanism.When machine is working. You need watching the machine whether normal running absolutely. If the machine working or running sound is abnormal, you should stop running to check the machine in time. Before stopping machine, first, you need taking off pawl of feeding device for stop feeding, then interrupting power source.If running time of the machine is too long, it will lead throwaway unit to wear and tear, and will reduce the products quality and dies life. You should stop working to repair and replace parts to be worn and torn.When cold header begin to work, you should check whether headed bolt、screw、rivet’s head is eccentric for the shank, if happen this condition, you should adjust for punch.If diameter and thickness to be formed bolt、screw、rivet’s head are not stable. (i.e. dia. small or unfilled for corner) youneed checking fed blank length. If the length is not enough, maybe the feeding did not arrive at stop block, or the distance of the stopper is not enough long, you should adjust once more.There are burrs on the formed bolt、screw and rivet’s head, the reason is entered blank too long, or no appropriate adjustment for thrusting mechanism, the blank length that thrust in die cavity hole is not enough long, result in outside blank of die hole is too long. You should adjust feeding mechanism and thrusting mechanism one more.If unable to form into head of a shank in heading operation, need checking ejector pin whether or not broken.When formed head of the shank is abnormal, need checking punch whether or not damaged, if so, you should replace a new punch.。