01r VPC gear pump sunny hitek hg132

required NPSH	0 5m
Material	cast steel
specification	hg1-32-01r-vpc
Flow rate	63m3/h
driving mode	electric
Scope of application	hydraulic system

Sunny internal gear pump Hg American Sonny adopts the principle of internal gear engagement
The pitch circle of the internal and external gears is close to one side, and the other side is separated by the "crescent plate" on the pump cover
The driving inner gear on the main shaft drives the inner and outer gears to rotate in the same direction
The gears separate from each other at the inlet to form a negative pressure and suck in the liquid
The gears are continuously embedded and meshed at the outlet to squeeze the liquid out
Due to this unique structure, it is especially suitable for conveying media with high viscosity
The viscosity range is 0
2-1000000cp; The basic composition of a clearance compensated internal gear pump with fixed displacement is; Front cover pump body rear cover gear shaft inner ring gear sliding bearing front and rear side plate positioning rod crescent sub plate crescent main plate plastic rod radial compensation function
Sunny internal gear pump  
It has the following characteristics; 1
Axial and radial pressure compensation design is adopted, which can maintain high volumetric efficiency even at low speed and low viscosity  
2
Ultra low noise
High strength cast iron and unique internal silencing design are used to reduce the noise
3
Extremely low flow and pressure pulsation can maintain stable flow and pressure output at low speed
4
High pressure design, high pressure can reach 35MPa
5
The speed range is wide, and the high speed can reach 3000r/min
 
6
It can be combined to form a duplex pump
7
Insensitive to oil pollution and long service life
8
It can be widely used in industry, such as plastic machine, shoe machine, die-casting machinery and forklift industry
It is especially suitable for energy-saving systems with servo variable-frequency drives

Model description; HG0-8-1R-VPC HG0-10-1R-VPC HG1-13-1R-VPC HG1-16-1R-VPC HG1-20-1R-VPC HG1-25-1R-VPC 
HG1-32-1R-VPC HG1-40-1R-VPC HG1-50-1R-VPC HG1-63-1R-VPC HG2-80-1R-VPC HG2-100-1R-VPC HG2-125-1R-VPC HG2-160-1R-VPC HG0-8-1R-VSC HG0-10-1R-VSC HG1-13-1R-VSC HG1-16-1R-VSC HG1-20-1R-VSC HG1-25-1R-VSC HG1-32-1R-VSC HG1-40-1R-VSC HG1-50-1R-VSC HG1-63-1R-VSC HG2-80-1R-VSC HG2-100-1R-VSC HG2-125-1R-VSC HG2-160-1R-VSC 
If the injection molding machine widely used in the plastic manufacturing industry uses energy-saving full digital AC servo motor and driver to control the oil pump, it can not only improve the reliability and service life of the equipment, but also save a lot of power consumption, which greatly improves the economic benefits and market competitiveness of the enterprise

Power saving principle: the traditional oil pump has been running at high speed for a long time since it was started
At present, the widely used vane and constant flow pump have high output pressure, so the load is high
However, the oil pump has been in the load state all the time, and the excess flow and pressure overflow through the overflow valve makes this part of electric energy wasted
For example, the special servo control oil pump motor installed by our company can control the speed and start and stop of the oil pump in a closed loop
The oil pump realizes soft start, reduces the oil supply of the equipment, realizes accurate control, realizes the soft start of the motor, reduces the impact and vibration on the equipment, greatly improves the service life of the equipment, saves the excess power consumption when the oil pump is under no load and low pressure, and generally saves 20-80% of the power, bringing considerable economic benefits to the enterprise, Greatly improve the market competitiveness of products
Comprehensively analyze the servo system of injection molding machine and its future market trend
Executive Summary:
The early injection molding machine was mainly full hydraulic, and its contribution to energy conservation and environmental protection was obviously weak
The full electric injection molding machine is a representative equipment technology in the contribution of energy conservation and environmental protection
The main difference between the two is the use of servo motor, while the oil electric hybrid injection molding machine has the advantages of both hydraulic and servo
  With the increasing demand for environmental protection and the encouragement of policies, various energy-saving facilities, equipment or technologies have been paid attention to in recent decades, such as servo technology in the field of injection molding machines
The injection molding business department of fuqiangxin group, one of the top three plastic injection molding machine and equipment enterprises in Taiwan, began brewing the application of energy-saving systems in injection molding machines as early as 2008
The first batch of servo energy-saving and environmental friendly injection molding machines began mass production in February 2008
These machines have achieved excellent characteristics such as high energy saving, high precision, high response, low noise, low oil temperature, etc
in an ideal state, compared with variable displacement pump models, energy saving can reach 40%, Compared with the traditional constant displacement pump, the energy saving reaches 70-80%
Then, the servo energy-saving system is successively expanded to other different models, including fast machine, bakelite machine and large two board machine, which saves at least 50-60% of the annual electricity charge for the client
Overview of servo energy saving technology
  The early injection molding machine was mainly full hydraulic, and its contribution to energy conservation and environmental protection was obviously weak
The full electric injection molding machine is a representative equipment technology in the contribution of energy conservation and environmental protection
The main difference between the two is the use of servo motor, while the oil electric hybrid injection molding machine has the advantages of both hydraulic and servo
In addition, when the oil press maintains high pressure and high output for a long time, it still has the advantage that the full motor cannot completely replace it
Therefore, the full hydraulic system with energy conservation and environmental protection is also a potential equipment technology at this stage

The difference between traditional quantitative pump and servo system
  From the standard action, the injection molding machine can be divided into several stages, such as mold locking, glue injection / pressure maintaining, feeding, cooling, mold opening, ejection, etc
each stage needs to provide different and appropriate pressure and flow
For the oil pump motor, the molding process of the injection molding machine belongs to the changing load state
In the hydraulic system of the constant displacement pump, the motor continuously provides constant flow at a constant speed
Although the results of the pressure and flow proportional configuration required at each stage can be achieved through the proportional pressure flow proportional valve (Efbg), the hydraulic oil required for control must still be discharged back to the oil tank
For the injection molding machine, the power consumption caused by the output power consumption is continuous, that is, if the injection molding machine is in the standby state, the quantitative pump still continuously provides a constant flow and directly discharges it back to the oil tank, resulting in considerable and unnecessary power consumption

  The control technology of servo system can improve the shortcomings of the above quantitative pump hydraulic system
The servo motor transmits signals back to the driver through the encoder for precise rotation control, so that the flow demand of the controlled hydraulic oil is directly output through the oil pump, that is, the output flow is obtained through the increase or decrease control of the precise speed
In terms of hydraulic oil pressure control, through the pressure sensor connected in series on the oil pump, the pressure signal result is transmitted and fed back to the driver end for continuous closed-loop control, so as to achieve the purpose of accurate pressure control
In this way, the servo control system can accurately provide the pressure and flow required in each stage of injection molding
Compared with the quantitative pump system, the output power consumption can be greatly reduced

Energy saving principle of injection molding
  From the power consumption state of each stage of injection molding, the feeding and cooling stages belong to long-time actions, and its power is worth saving, especially cooling
The servo system does not need to do work for the injection molding machine at all
In other words, the longer the cooling time in the product molding cycle, the more significant the energy-saving benefits

Composition of servo energy saving system of injection molding machine
  Generally, the servo energy-saving system used in full hydraulic injection molding machine is composed of three components: servo motor, driver and oil pump group
Servo motors are divided into AC induction servo and permanent magnet servo (synchronous servo); The control technology of the driver is divided into frequency conversion control and servo control according to the characteristics of the motor; The types of oil pumps commonly include gear pump, plunger pump and vane pump
Gear pump includes external gear, internal gear and screw type

  In addition to the above three standard components, the servo control system also requires the following accessories:
  1) Controlcard
  Some are called PG cards, which are used for communication and conversion of communication interfaces, so that the encoder signal can be fed back to the card for vector control of speed

  2) Encoder transmission line (encoder)
  The signals of each terminal on the encoder are transmitted to the driver end, and the driver end usually uses 9pind sub as the communication interface

  3) Breakresistance
  It is also called brake resistance or pick-up resistance to prevent the current generated by the motor reversal from directly recharging to the driver end when the motor suddenly turns to an emergency stop, causing the driver to burn out, and the brake resistance will consume this recharging current and turn it into heat release
At present, a technology has been developed to store and reuse the recharge current, which is another progress in energy conservation

  4) Pressure sensor
  The servo system is an important feedback component for pressure closed-loop control of injection molding, which is often set at the outlet of the hydraulic oil pump
The common pressure specification is 0-10V, and the corresponding high pressure is 250bar

  5) Electromagnetic interference filter
  It is connected between RST and the driver to avoid the driver being interfered or the electromagnetic interference generated by the main body extending to RST, which will also affect the operation of other machines

  6) AC reactance
  Reduce the harmonic and peak current of the main power supply, protect the electronic components of the driving mechanism, and prevent the tripping caused by the voltage sharp pulse of the main power supply
It is recommended to install it in areas with poor power quality

  7) Reactance ring: used to reduce radiation interference and reduce the instability of signal transmission caused by interference

Performance and energy saving verification of servo control system
  Servo energy-saving systems on the market include a variety of products from Taiwan, the mainland, Japan, Europe and the United States
The key components of each system are almost highly matched, but the performance stability, controllability and price rationality of the assembled system still need to be examined
Complete servo control system