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Shear and end welding machine

The general description of shear and automatic welding machine
Together with the accumulator, it permits to change coil and joint it with the
already working strip maintaining constant the speed of the tube mill.
We design the shear and welding machine according to the strip thickness and width.

Description

Shear and end welding machine

1.The general description of shear and automatic welding machine

Together with the accumulator, it permits to change coil and joint it with the

already working strip maintaining constant the speed of the tube mill.

We design the shear and welding machine according to the strip thickness and width.


The shearing and end welding machine composed by

1)Pinch system for the strip head

2)Entry guiding system for the strip head

3)Hydraulic clamping system for the strip head

4)Hydraulic hearing system for the strip head and strip tail

5)Welding assembly for the strip head and strip tail.

6)Pinch system for the strip tail

7)Exit guiding system for the strip tail

8)Clamping system for the strip tail

9)Operation box for the welding machine

10)The console of shear and end welding machine.

11)Hydraulic station


The detailed description

The pinch system clamp the incoming strip head and feeds it to the entry guiding system ,the pinch system is equipped with the geared motor and hydraulic cylinder .when the strip head enter the pinch system ,the strip head is fed into the entry guiding system , the vertical movement of upper roll of pinch system is controlled by hydraulic cylinder. The rotation of the upper roller is controlled by A geared motor .

The guiding system is controlled by the hydraulic, which provides the correct alignment,and then the strip head moves to the clamping system.

With the same operation method,to make the strip tail into the clamping system for the strip tail.

After both head and tail of strips are clamped by the the hydraulic clamping system . the powerful hydraulic shear with 2 blades cut the head and tail of strips synchronously.

After cutting, both hydraulic clamping systems for centering movement. This result in the correct alignment of strip head and tail. And then ,strip head and tail are welded together by the CO2 gas shielded arc welding.

The support for welding torch is placed on a transversal sliding system controlled by a stepped motor through a screw and this machine is equipped with welder CO2 and one torch.

Once the operator has confirmed all the position of strip head and tail.

With the correct sequence of operations, the

automatic welding cycle of the strip can start.

All functions are performed by the operator

through the push buttons on the console and operation box of welding machine, this ensure the operator’s safety

The welding torch can be adjusted by up/down and left/right,this result in aligning the welding torch with the weld seam


2.The general description of manual shear and automatic welding machine

Together with the accumulator, it permits to change coil and joint it with the

already working strip maintaining constant the speed of the tube mill.

The shear and end welding machine only process the strip less than 4mm .

The strip is sheared by hydraulic manually, and the strip hear and end is welded together by TIG automatically.


The shearing and end welding machine composed by

1)The TIG welder

2)The hydraulic station

3)The shearing unit

4)The welding unit

5)The electrical control unit

6)The touch screen

7)The guide rail

8)The geared motor


3.The general description of manual shear and automatic welding machine

Together with the accumulator, it permits to change coil and joint it with the

already working strip maintaining constant the speed of the tube mill.

The manual shear and automatic welding machine is a tailored -equipment ,which process 460mm width strip with 1.5mm thickness.

The strip is sheared by hydraulic manually, and the strip hear and end is welded together by TIG automatically.


The shearing and end welding machine composed by

9)The TIG welder

10)The hydraulic station

11)The shearing unit

12)The welding unit

13)The electrical control unit

14)The touch screen

15)The guide rail

16)The geared motor


1.The general description of horizontal spiral Accumulator


The horizontal spiral accumulator design is based on the principle of the difference in the length of an equal number of spirals around different diameters. This system allows to accumulate a big quantity of strip, in regards to the occupied area and it works in spiral mode. Moreover, this machine doesn't need special on-site construction work and can be easily moved. The completely automatic operation allows to exploit totally the economic advantages offered by a continuous production.


The entry end strip deviator( twisting unit,horizontal unit) and driven pinch rolls guide the strip from the horizontal exit of

the shear and end welder to the vertical pinch roll of the accumulator.

The horizontal spiral accumulator is filled by the pinch roll driven by the A.C. motor and with pneumatic

cylinders that give the pressure to guarantee the friction with the strip.

The drive system for the rotation table is composed by one AC motor with one reducer and cardan shaft.

The rotating motor and pinch motor are controlled by a frequency variable system. The strip exits from the center of the accumulator and is again angled horizontally by one high horizontal support roll to the forming machine


The horizontal accumulator is composed by

1)Twisting unit to guide the strip at the entry of the rolls-feeder

2)Rolls-feeder (called introducer) driven by a AC motor to feed the storage

3)Storage (called accumulator) with revolving table driven by AC motor

4)Exit guide unit to conduit the strip at the exit of the machine.

5)Console


The benefit of accumulator :

●Large storage capacity

●Minimal maintenance

●Low noise


The accumulator can operate with the following methods:

●Synchronized operation: inlet and outlet speed are the same as the line.

●During welding the coil end/head. In this phase, the line takes the material stored in the accumulator.

●When the welding process is finished, the inlet speed is higher than the outlet speed to quickly accumulate the strip amount used during the welding phase.

●When the defined amount of strip is reached, the machine automatically synchronizes with the speed of the tube line.


2.The general description of cage Accumulator


The cage accumulator can storage 500-700m length strip, which can maintain the tube mill consistent running during changing steel coil and joining the strip heard and end together.

The cage accumulator need less floor space and it is easy to install it .


The cage accumulator is composed by

No.1.Feeding Unit:

●Base

●Motor

●Pinch roller

●Guide roller

●Centering unit

NO.2 Cage accumulator assembly

●Inner case

●Outside cage

No.3 Feeding motor


3--The general description of floor type accumulator


The cage accumulator can storage 700m-1000 length strip, which can maintain the tube mill consistent running during changing steel coil and joining the strip heard and end together.

The floor type accumulator is work with the ERW114---ERW325 tube mill .which handle the strip width 160mm--600mm with thickness 1.5---12mm


The floor type accumulator accumulator is composed by

1)The horizontal support bracket

2)The twisting bracket

3)Pneumatic brake

4)Roller feeding unit

5)Accumulator assembly

6)High support bracket


--The general description of cold cutting saw

Function:To cut off the steel tubes into the required lengths online. the tube length accuracy up to ±1.5mm, the tube Min.length is 1 m can be cut .


The cold cutting saw is composed by:

1)Cutting System

●No. of blade: single blade.

●Diameter of blade: Φ350mm.

●Material of blade: TCT./HSS

●Cutting motor: AC variable frequency motor(SIEMENS) or Servo motor(YASKAWA) as option

2)Feeding System

●Feeding motor: servo motor (brand: YASKAWA)

●Feeding model: servo motor + ball screw.

●Multi-stage speed feeding.

●The round tube can be cut from any angle, and the square and rectangular tube is cut at a certain angle.

3)Clamping System

●3 or2 sets clamping jig are provided.  

●The tube is clamped by hydraulic or pneumatic

●The clamping jigs are made of ductile iron that has good wear resistance that can prevent tube from scratching.

4)Drive System

●Driving motor: servo motor

●A precise planetary reducer is provided with large transmission torque, low noise, high efficiency and free of maintenance within 3 years.

●The HIWIN brand of linear guide rail is provided with heavy-duty slider, the whole guide rail is not spliced.

●The anti-collision is made of rubber block.  

5)Electrical Control System

●The cold cutting saw is controlled by Motion Controller(TRIO,UK)

● 1 electrical cabinet and 1 console are provided .

●Electrical control cabinet is fitted with a warning light as a fault alarm.

●The parameters are shown on HMI ,The data of 6 groups tube information can be stored on HMI.

●Specified length of tube can be set .

●Interlocking protection interface with console of HF welder is reserved.

●Automatic and manual function are available.

●The system is stable and reliable, with complete protection and security functions.

●All the States and values of the equipment operation are displayed on the screen.

●Maintenance-free (except for normal lubrication and cleaning of each shift).

6)Automatic Lubrication System

●Saw blade is fitted with automatic emulsifier lubrication cooling device.

●The guide rail and slider are greased by an automatic lubrication pump.


Automatic fork arm Stacking Machine

---The general information of automatic fork arm Stacking Machine

Function :It is used to pack automatically round tubes and square &rectangular profile. It possible to obtain either square,rectangular or hexagonal bundle .


The Feature

Fit to Round, Square and Rectangular pipes.Automatically,

●All data set up at HMI panel.

●Multi packing style, such as quadrangle or hexagon style.

●Quick packing speed

●No damage for pipe’s surface.


The composition of automatic fork arm Stacking Machine

Tube pickup unit

unit of tube alignment

Stacking unit

Aligning unit

The conveying roller table

Tube bundle storage unit

Water draining device

Electric control system


The automatic electromagnet disc stacking machine

Function :It is used to pack automatically round tubes and square &rectangular profile. It possible to obtain either square,rectangular or hexagonal bundle .


The Feature

Fit to Round, Square and Rectangular pipes.Automatically,

●All data set up at HMI panel.

●Multi packing style, such as quadrangle or hexagon style.

●Quick packing speed

●No damage for pipe’s surface.

The composition of automatic electromagnet disc stacking machine

①Drawing chain

②he steel frame of electromagnetic sucking discs system

③Motorized alignment rollers

④System of pipe calculation

⑤System of pipe alignment

⑥Electromagnetic sucking discs system

⑦Stacking frame

⑧Carriage of tube bundle

⑨Conveying roller table for bundle delivering

⑩Motorized chain type bundle stocking area.

⑪Electrical control system


Automatic strapping machine

--The General description

Function To strap the steel tube bundle with strapping belt automatically online .

The number of strap can be set as per customer’s requirement

The automatic strapping machine is composed of

No.1: strapping head.

No.2 electric console system+console

No.3.main frame

No.4 lifting mechanism of strapping head

No.5.guide chute mechanism of strapping strip

No.6 pneumatic system

No.7 strapping strip dispenser

No.8 cantilever crane


The bought out component list

NO.Item nameBrand
1Main low voltage electric elementsSCHNEIDER/ABB
2Servo motor and its controllerINVT
3PLCSIEMENS SIMATIC S7-1200
4HMISIEMENS KTP 900 Basic
5SensorSICK/IFM/P+F/ELCO
6TerminalSCHNEIDER/PHOENIX
7Linear guide railHIWIN \ PMI \ SLM \ PDF
6ReducerGUOMAO/DONLY
7BearingHRB,ZWZ,LYC
8Pneumatic partAIRTAC/FESTO
9Ac driverSIEMENSE