automatic strapping machine

Description

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

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 introduction of each part of automatic strapping machine

The strapping head incorporates a buckle-free interlocking unit based on German technology. It utilizes split-design clamping jaws and a fixed stamping die, featuring a mature and reliable structure with high precision fit. The tooth profile has been optimized over years of German refinement for superior performance.

The interlock unit directly interlocks the top and bottom strapping strip through meshing teeth that tighten under tension. A three-row lock design includes a central wedge-shaped safety latch. The entire lock bends and conforms tightly, preventing loosening from rebound forces. Compared to other buckle-free stamping technologies on the market, this design increases the service life of wear parts by over 30%.

(1) Buckle form : free-buckle( Six (three pairs) bites

(2) Buckling efficiency (strength):The strength in the joint is 75%~80% of the steel strip itself.

(3) Driving mode: Servo motor

(4) Tension range :Max:20,000N(adjustable)

(5) Feeding speed of strapping strip:Max. 2000 mm/sec

(6) Electromagnetic valve voltage:DC24V

(7) Size:L 600 x W 610 x H 616 mm

(8) The required top plane length of bundle:Min.160mm

(9) Strapping time :≤20second/strapping strip

Strapping strip dispenser Function :The dispenser can load and feed the strip to the strapping head automatically.

The working process:

The upper idle wheels and motion wheels include multiple wheels for stocking strip,Ensure that the motor does not repeatedly switch between forward and reverse .

The motion wheel group uses its own weight to ensure that the straps between the idle wheels group and the motion wheel group can tightly adhere to the guide wheel without loosening.

When the motion wheels move to the upper set position, the motor starts feeding strip. When the motion wheels falls to the lower set position, the motor stops to feed the strip.and then tighten the strip to make the motion wheel stop at the set position ,if the machine is abnormal and  the motion wheels reach the upper limit position ,the upper limit sensor is triggered, the strapping machine will stop to run and alarm.

If the strapping strip run out ,the testing sensor will test it and then the indicator light is on and it will emit a prompt tone to prompt the worker to change strapping strip.

Structure:it is composed of 

No.1 frame

No.2 idle wheels

No.3 motion wheels

No.4 the reel and the motor with reducer

No.5: sensor

Parameter:

1) Motor:1.1KW,model:GDPWJ90S-4,Three phase asynchronous motor.

2) Reducer model:GKAF49-YPEJ1.1-4P-56.83-M2-180°-3

Strapping strip specification

(1) Strapping strip width:31.75 ± 0.13 mm

(2) Strapping strip thickness:0.8-1.1 ±0.035 mm

(3) Material:Cold rolled carbon steel

(4) Surface treatment:Bluing/galvanizing/painting/surface waxing

(5) Camber :Less than 12.4mm in the 2.4m in length.

(6) Angulation:Every 2.4m in length is not longer than 30.

(7) External diameter :Less than ø840mm

(8) Inner diameter:φ406mm ±2mm

(9) Max weight:430KG±30KG 

(10) Strip coil height:190mm ± 5mm on the vertical axis

The guide chute system 

Function : to guide the strapping strip into the strapping head

The structure :

It is composed of 

No.1 Corner guide chute assembly.

No.2 Straight guide chute assembly

No.3. Strapping strip track

No.4 Reverse roller wheel

Electrical system

(1) Console + electrical cabinet( the console is installed near the strapping machine)

(2) The cabinets have a protection level:IP52.

(3) The communication between the strapping machine and the customer's conveyor system adopts PROFINET communication.

(4) The hard wiring of the strapping machine adopts a passive contact (dry contact) method

(5) The main control console of the trapping machine is equipped with a touch screen for easy on-site operation.

working mode of automatic strapping machine

(1) Fully automatic :

After receiving the strapping start signal from the conveyor control circuit, the machine automatically completes a designated trapping

(2) Offline automatic (local operation):

By pressing a specific switch by the operator, the machine can complete a designated trapping cycle without the need for online signals from conveyor. After completion, the machine will wait for the operator to give the next instruction. In this state, the upper system still needs to provide interlocking signals.

(3) Semi automatic:

Part of the work program needs to be completed step by step during commissioning. But there are some actions that have interlocks added to the electrical program to prevent accidental and erroneous operations from causing equipment damage.

(4) Manual mode

For maintenance purposes, each active part of the trapping machine can operate independently

The bought out component list