Cold Pilgering Mill

Cold Pilgering Mill

Merchandise description:
LD-a hundred and twenty is 3-roll profile-Cold Rolling Mill, The mechanical gear of rolling mill consists of feed system, mandrel parts, hydraulic mandrel chuck, rotating feed mechanism, center bed components, frame, working body, discharge system and major generate mechanism, which can meet up with the creation requirements of stainless steel. superalloy. Titanium and titanium alloys and other black Non-ferrous metal are precision seamless, representative metal grades are as follows:

Breed Consultant Steel
Stainless steel 1Cr18Ni9Ti,0Cr18Ni9,0Cr18Ni10Ti,316HWait
superalloy GH1140,GH3030,GH3039
GH536,GH625, GH163
Titanium and titanium alloys TA2,TA10,TA15,TA18Wait

The three-roll cold rolling mill is a extensively used strategy in the production of metallic tubes. The tubes are fed into a groove which is made up of Mandrel and the pass which moves back and forth periodically. The internal wall is supported by Mandrel, the tube blank can be rolled by the movement of the roller of the set move in the changing groove, and the operate of reducing diameter and minimizing wall can be understood. The metal has excellent plastic deformation situation underneath the motion of 3-dimensional compressive tension in rolling, and the plastic deformation of the steel is dispersed into the total successful rolling process by the reciprocating roller, creating the greatest use of the plasticity of the steel, it is the most effective cold operating method to make full use of the plasticity of the substance, because it can achieve the precise processing charge with considerably less rolling pressure and has exceptional micro-deformation and macro-accumulation effect.

CZPT parameter:

No.                Description   Unit                                     Tube Cold Rolling Equipment Design
LD-one hundred twenty
one    Hollow size Exterior diameter mm φ90~φ160
Wall thickness mm two.five~9
Length m 2~5
2    Tube dimension Exterior diameter mm φ80~φ150
Wall thickness mm 1.eight~eight
Duration m ≤7.5
three      Max. elongation ratio of rolling   It depends on the materials
four       Stroke charge of roller carriage str./min. forty~70
5  Stroke size of roller carriage mm 752.5
6  Length of hollow feed mm 1~eight
7  Rotating angle of hollow for the duration of feed   Deg. 47-72
8          Rotate-and-feed system   Servos Or Direct recent
10              Number of rollers   3
11    Centre peak of hollow mm 800
12     Power of principal motor KW 132



Construction and qualities of equipment:
one,Feeding gadget
The feeding device is composed of a feeding system, a feeding raceway, a chain wheel transmission gadget and a pipe jacking. After the main rod clamping three claws open, the beginning button, the motor via the sprocket transmission device, driving the pipe jacking cart CZPT, by the pipe jacking set up in front of the pipe jacking cart to deliver the billet into the mattress just before the cart, starting up the sprocket drive in the opposite course to exit the pipe jacking, clamping the main rod with the main rod and clamping the 3 claws, beginning the mill to carry out the rolling, at the identical time pushing the pipe back to the again limit, via the cylinder pulling the substance pulling mechanism to change the billet pipe to the substance feeding raceway, the pipe jacking truck slowly delivers the pipe blank to the front restrict situation and waits for the subsequent feeding.
2,Main drive
It is made up of Z4 DC motor, belt push, hydraulic Disc brake and assist. The utility design is utilized for driving the doing work frame of the chilly pipe rolling mill and generating it reciprocating. The method employs a few-section silicon managed rectifier, Z 4 series DC motor to push the trigonometric belt, which is transmitted to a pair of driving gears in the chassis by means of a big pulley. The driving gears are engaged with the crank gears, then via the crank and connecting rod push the function rack for reciprocating movement. In get to empower the rack to stop at a set position (the modest opening of the roller) , a hydraulic Disc brake is mounted on the help and related to the motor shaft. To facilitate belt tightening, the Z4 DC motor, belt push, and hydraulic Disc brake are mounted on a movable assistance.

three,CZPTstock device
The box body employs the welding piece, the welding piece carries on the anneal processing and the leakage examination. An upper include is provided on the chassis to avert the splash of the approach lubricant and reduce the noise. The energy transmitted from the driving element is transmitted to the driving shaft by means of the coupling, by way of the driving helical equipment, driving the huge connecting rod put in on the massive eccentric helical equipment, the other end of the big connecting rod is linked with the rocker rod, thus generating the rocker system swing again and forth. Gear content: huge equipment ZG310-570. Pinion forgings for 40Gr. Connecting rod undertake forty five # , normalizing. Connecting Rod Pin, equipment shaft content for 40Cr, conditioning therapy. The eccentric equipment is lubricated by splash and the bearing is lubricated by grease.
The upper conclude of the rocker is connected with the device head through an higher connecting rod and the center connecting Rod is related with the roller cage. When the rocker is shaken, the sleeve of the device head and the roller cage are pushed to transfer respectively, so that the roller and the slide keep track of are in relative motion, when the rollers roll on the slope of the slide, the move shaped by the 3 rollers varies periodically from massive to modest (optimistic stroke) or from tiny to big (reverse stroke) . This spherical-the-clock reciprocating motion is the multi-roll cold mill rolling procedure. The head slide plate is manufactured of QAL-9-four copper, the physique sleeve and trolley are produced of integral solid metal, and the materials is ZG310-570 roll content is GCR15.

4,Rotary feed system
The rotary feed is controlled by Servo Motor. When the equipment head moves to the back starting position, the indicators are sent to the PLC through the sensor, and the PLC respectively instructs the pipe chuck in the center mattress to rotate and feed, in get to fulfill the needs of head rolling pipe. The rotation angle is retained continuous each and every time, stepless adjustable the magnitude of feed amount is recognized by PLC manage Servo Motor rotation angle, and stepless adjustable. The box entire body is welded by steel plate, and the entire human body is tempered.

five,Centre part
The center bed is located among the rotary feeding box and the major box. The mattress is outfitted with a pipe blank chuck, two sets of interior and outer brackets, bearing housing, screw Rod, polished Rod, proximity switch, and so on. The materials of screw rod: Unique Screw Rod Materials YF45MnV ZQSn6-6-3 copper plate framework is adopted in the chuck and slide plate on the bracket of the interior pipe physique of the lathe mattress In buy to enhance the security, the mattress assistance uses 4 coaming to weld into the sq. box.

six,Main Bar and chuck unit
The main rod and the chuck unit are composed of a plug, a main rod and a joint. The plug content is H13, and the Mandrel and rod content is 45 # chilly-drawn thick-walled tube. The plug and the mandrel are linked by screw thread and adhesive rotating and twisting. The main bar chuck makes use of the hydraulic chuck type, the core bar loosens, the clamping is managed by the electromagnetic valve to full

seven,Discharge bench
The discharging program is composed of roller body, discharging platform, oil obtaining plate (manufactured by buyers on their own) and u-formed mixture frame. The discharging platform is each welded body, and the discharging system is geared up with anti-scratch lining board to avoid the pipe substance from getting scratched and bruised, which performs the position of protecting the pipe content.
8,Method Lubrication Method
The approach lubricant is manufactured up of rolling oil (reusable) , oil tank, pump-motor device, pipe fittings, and so forth. . It is employed to awesome and lubricate roll move in rolling process, and also used to lubricate the manual rail and the slide plate in the frameThe approach lubrication station is used to cool and lubricate the perform cone, roller, slide plate of the mill, screw rod of the bed, guide rail and roller bearing in the rolling deformation zone of the metal pipe.
9,CZPTal Technique
In get to satisfy the technological demands of the rolling mill, the Management Heart of the program is Plc.. The entire electrical manage system largely consists of male-device interface, host control technique, rotary feed control system, pneumatic control and auxiliary handle program. All minimal-voltage switches, contactors, relays, etc. are chosen domestic very first-line merchandise.
The guy-equipment interface employs a 10-inch touch monitor. Some necessary parameters of products procedure are input to PLC via male-device interface, and then realized by PLC controlling the corresponding motor or solenoid valve. When the products is managing, the PLC collects the fault or alarm data by means of each and every controller, sensor and so on, and ultimately shows it on the gentleman-machine interface. So that the operator can speedily and precisely identify and fix the dilemma.

Cold Pilgering Mill