1. Basic specifications:

1. Applicable raw materials: LDPE, LLDPE, HDPE, recycled raw materials, masterbatch, etc.

2. Product specifications: Ф16mm

Drip tape spacing (mm): 100, 150, 200, 250, 300 (hole spacing is adjustable)

Drip tape flow (l/h): (depending on the flow of the patch dripper)

3. Product wall thickness: in accordance with national standards

4. Product weight: in accordance with national standards

5. Extrusion volume: about 260kg/h

6. Design speed: 450m/min The actual production speed is determined according to the material quality and product spacing

7. Total power: about 120KW

8. Overall dimensions (length × width × height): 36m*2.8m*3m

2. Equipment composition:

3. Main technical parameters

(I) Extruder, dripper conveying and screening device

Equipped with a 75KG floor-standing suction machine

Feeding method: vacuum suction method

Extruder: SJ-90/38

Main motor power: 80Kw servo AC motor

Heating method: cast aluminum electric heater (with air cooling structure).

The extruder is equipped with a stainless steel cover, which is beautiful and generous.

1. Barrel and screw

The barrel is based on 38CrMoA1A, which is tempered and nitrided;

Screw design: 38CrMoAlA, the screw adopts a new separation structure, BM type + oblique barrier type + high-efficiency mixing head

2. Extruder reducer

The gear used in the reducer is made of high-quality low-carbon alloy steel, which is carburized, quenched, and ground. The gear accuracy reaches level 6, and the hardness is HRC54-62

Extruder reducer model: ZLYJ 250 (high reliability)

Connection method with the main motor: Direct connection with elastic coupling

3. Screen changer

Screen changer form: Hydraulic screen changer Hydraulic screen changer has fast operation time

4. Hengxiang flying saucer dripper screening and conveying system has applied for national invention patent

 (ii) Die head, sizing, vacuum cooling system

1. Die head (side-feed spiral die head)

The die head is made of die steel and is cast. Machining process: rough machining → quenching and tempering HB230-260 → semi-finishing → rough polishing → drilling and milling → finishing → polishing Ra0.4 → hard chrome plating, thickness 0.03±0.003mm → fine polishing to A4 mirror surface → assembly.

Die head designated brand: Hengxiang

2. Die head heating

Heating method: Electric heating with stainless steel heater, independent temperature control, to facilitate the adjustment and control of the uniformity of the drip irrigation belt.

Heating section: 1 zone Heating power: 2.2KW

3. Cooling system (center height 1000mm)

4. According to the production characteristics of Hengxiang plastic machinery, special customized industrial chillers are produced:

Power: 20P

Provide constant temperature, constant flow, and constant pressure cooling water to better ensure equipment operation and improve production efficiency.

(III) Punching machine, traction device

1. Traction punching platform: The traction platform is a rubber-coated multi-V belt double traction form, with reasonable structure, standard materials and good stability; the table and punching platform are finely processed by CNC planer, which effectively ensures the punching stability under high-speed operation.

2. Traction motor: servo

3. Traction servo motor power: 2KW

4. Clamping form: pneumatic clamping

5. Effective track length: 900mm

6. Punching method: servo vacuum chip suction six punching system

7. Servo punching motor power: 400W*6

(IV) Line tension controller

The winding length is controlled by the solenoid valve. When the equipment is in high-speed production, the drip irrigation tape can be effectively stored to prevent it from falling off, making the winding operation more stable.

(V) Automatic winding device

This unit is composed of a double-station winder with automatic tension control, which can rewind neatly. It has the functions of length-counting rewinding, fixed-length alarm, and automatic reel changing.

(VI) Electrical control system

1. A set of complete machine system control cabinet (extruder system temperature, output, line speed, etc. Including control cabinets for auxiliary machines such as traction and winding).

2. Control system (highly automated, can be controlled through 3 computer screens at key points of the entire line to achieve online control of the entire machine)

3. Visual tracking system (high-speed online tracking camera system, automatic alarm for dripper leakage, deviation, etc.

(VII) List of subcontractors for major supporting parts