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            RPM - Pimpex - Logo
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          www www.plasticimpex.cn
          Chinese Version Contact with Pimpex@RPM, China
          Pimpex@RPM - Xiamen RPM Imp.&Exp. Co.Ltd.

           

          Automatic Injection Blow Molding Plastic Machinery

          Automatic Injection Blow Moulding Plastic Machinery
                 
          www www.plasticimpex.cn

          Main Specification
          Table 1
          No.
          Model of Machine
          Unit
          Injection Blow Molding Machine
          Injection Blow Molding Machine for PC
          WB07-5
          WB2-1B
          WB2PC-1
          WB2PC-2
          1
          Screw Diameter
          mm
          40
          50
          42
          52
          2
          Screw Speed
          rpm
          0-190
          0-180
          0-180
          0-180
          3
          Injection Capacity
          g
          175
          300
          190
          320
          4
          Clamping Force of Injection Moulds
          KN
          150
          210
          240
          310
          5
          Clamping Force of Blow Moulds
          KN
          30
          65
          50
          65
          7
          Formability Materials
          PE, PP, PS, SAN
          PC, PMMA
          8
          Production Capacity
          pcs/h
          850-1600
          1100-2000
          200-600
          150-400
          9
          Motor Power
          KW
          11
          15
          15
          18.5
          10
          Heating Power
          KW
          7
          11
          11
          13
          11
          Compressed Air
          MPa
          0.6-1
          0.8-1.2
          12
          Cooling Water
          bar
          1-3
          13
          Machine Dimensions
          cm
          230x125x250
          280x140x260
          260x135x260
          285x150x260
          14
          Machine Weight
          kg
          2500
          3500
          3500
          4000
          Recommended Hydraulic Oil
          Table 2

          No.

          Item

          China code

          ISO code

          Old China code

          Viscosity
          (mm/s50 0C)

          1

          Wear-Resist

          YB-N46
          YB-N48

          HN

          30#
          40#

          27-33
          37-43

          2

          Hydraulic oil

          YB-N46
          YB-N48

          HL

          30#
          40#

          27-33
          37-43

          3

          Mechanical

          YB-N30

           

          30#
          40#

          27-33
          37-43

          Function and Sign of Every Approach Switch
          Table 3

          Input Port of PLC

          Function

          Input Port of PLC

          Functions

          X0

          Stopping for the screw mould moving down

          X10

          Stopping for the unrod air cylinder out

          X1

          Injecting stopping

          X11

          The blow mould opening speed turned to slow

          X2

          Stopping for the screw mould moving up slowly

          X12

          The blow mould closing speed turned to slow

          X3

          Stopping for the blow mould closing

          X13

          The screw mould up quick speed turned to slow

          X4

          The plastic melting stopping

          X14

          The screw mould down speed turned to slow speed

          X5

          The screw back stopping

          X15

          Stopping for the screw mould up quickly

          X6

          Stopping for the blow mould opening

          X17

          The screw mould protection

          X7

          Stopping for the unrod air cylinder in

          X22

          Core-in limit

          Electrical Elements
          Table 4

          No

          Norms and Model

          Item

          Power/ Parameter

          Numbers

          1

          FX2n-80M

          Mitsubishi PLC

           

          1

          2

          PACR φ 30PB-30N

          Starting motor button

           

          1

          3

          φ 22 2N0

          Electing switch

           

          2

          4

          φ 22 2NC

          Urgency stop switch

           

          1

          5

          φ 30 DC24

          Buzzer

           

          1

          6

          EA63B60A

          Automatic air switch

          60A

          1

          7

          1p6A

          Automatic air switch

          6A

          1

          8

          1P25A

          Automatic air switch

          25A

          4

          9

          100-C09A10

          AC contactor

          Single phase 9A

          4

          10

          SKG

          Temperature controller

           

          1

          11

          H2DA-RPK

          Temperature controller

           

          4

          12

          YM10-2M

          Thermocouple

           

          5

          13

          P/N 2123XST

          Extractor fan , protective casing

          -220V/0.14A

          1

          14

          SC-1N

          AC contactor

          32A

          3

          15

          TR-2N/3(24-26)

          Thermal relay

          24A-36A

          1

          16

          PR12-40N

          Approach switch

           

          14

          17

          PR17-50N

          Approach switch

           

          3

          18

          TH670 DC 1A

          Current instruments

           

          2

          19

          220V/9V, 24V

          Transformer 1 #

          S VA-300VA

          1

          20

          220V/35V, 70V

          Transformer 2 #

          S VA-100VA

          1

          21

           

          Proportional amplifying panel

           

          1

          22

           

          Regulated power supply panel

           

          1

          23

           

          Power amplifying panel for the valves

           

          1

          24

           

          Manual operation panel

           

          1

          25

           

          Automatic operation panel

           

          1

          26

          ¢120 × 135

          heater

          1600W

          6

          27

          ¢60 × 50

          heater

          350W

          1

          28

          ¢32 × 20

          heater

          20W

          1

          29

          ¢50 × 50

          heater

          250W

          1

          30

          ¢10 × 150

          Heating rod

          300W

          4

          31

           

          Motor

          13kW

          1

          31

          KBPC3510

          Rectifier

          30A

          1

          Trouble Shooting for Product Quality of Injection Blow Process
          Table 5

          Trouble

          Possible Fault

          Remedy

          1 Pre-form not formed well.

          • The melt index material higher.
          • High temperature of core mould.
          • The temperature of female mould too higher.
          • Surface polishing of the female mould not good.
          • The melt index the material should below 2.
          • Decrease the oil temperature of the oil temperature controller.
          • Decrease the temperature of the female mould.
          • Increase the quality of surface polishing of the female mould.

          2 Too much scrap for the preform

          • Quality of the mould not good.
          • Injection pressure higher.
          • Too more capacity of injection.
          • Longer time of keeping pressure
          • Increase quality of the mould manufacture.
          • Decrease Injection pressure.
          • Reduce capacity of injection.
          • Reduce the time of keeping pressure.

          3 Blow molding is not good.

          • The temperature of the bottom of pre-form higher.
          • The material not good for injection and blow process.
          • The heating temperature not right(higher or lower).
          • The temperature of pre-form not adjusted well.
          • The thickness of pre-form not uniform.
          • Decrease the temperature of the bottom of pre-form.
          • Choose the right melt index or change material.
          • Adjust heating temperature.
          • Adjust the pre-form temperature.
          • Repair or adjust the mould.

          4 Insufficient preform

          • Injection capacity not enough.
          • Injection pressure lower.
          • Melted material comes out from nozzle not uniform.
          • Temperature of the material lower.
          • Air exhausting from the female mould not well.
          • Adding material is not enough when keeping pressure.
          • Increase injection capacity.
          • Increase injection pressure.
          • Repair the nozzle of channel for the melting material out.
          • Increase the temperature of the material.
          • Make air exhausting channels on the female mould.
          • Increase the time of keeping pressure.

          5 After blow molding, it explodes when the blow moulds open.

          • The air exhausting valve not operating(opens).
          • The air exhausting part blocked by materials.
          • The air exhausting piston not action.
          • The sealing of exhausting piston defected.
          • The time of air exhausting not enough.
          • Check the electrical circuit.
          • Clean away the left materials and polish the sealing surface.
          • Check the air exhausting piston.
          • Change the sealing.
          • Protract the time of air exhausting.
          Trouble Shooting for Machinery
          Table 6

          Trouble

          Possible Fault

          Remedy

          1 No pressure after starting the oil pump

          • The adjust handle of the overflow valve loosed .
          • The oil pipe is blocked.
          • Pressure proportioned valve not well adjusted.
          • Wrong running direction of the motor.
          • Adjust the handle.
          • Clean away all the dirty matters.
          • Check the electrical control circuit.
          • Change running direction of the motor.

          2 Noise of oil pump too higher.

          • Oil level in the tank is lower.
          • Air get into the hydraulic system.
          • Oil filter blocked.
          • Problem of the pump.
          • Charge in some oil.
          • Check the oil suction hole.
          • Clean the oil filter.
          • Check the oil pump.

          3 Hydraulic motor not running.

          • The pressure too lower.
          • The temperature of the barrel lower.
          • Foreign matters get into the barrel.
          • Hydraulic motor has something problem.
          • Increase the pressure.
          • Increase the temperature of the barrel.
          • Check the barrel.
          • Repair hydraulic motor.

          4 Injection and screw back not starting.

          • The pressure at pressure reducer is too lower,
          • The keys of transfer spindle damage.
          • Direction valve blocked.
          • Electrical signal off.
          • The temperature of material too lower.
          • Adjust the pressure of pressure reducer.
          • Change the key sleeve of spindle.
          • Clean the direction valve.
          • Check the electrical circuit.
          • Increase the temperature of material.
          Definition table of the I/O of PLC
          Table 7

          Input Port

          Definition

          Output Port

          Define

          X0

          Screw mould moving down stopping

          Y0

          Address

          X1

          Injection stopping

          Y1

          Address

          X2

          First stopping for screw mould moving up

          Y2

          Address

          X3

          Blow mould closing stopping

          Y3

          Address

          X4

          Plastic melting stopping

          Y4

           

          X5

          Screw back stopping

          Y5

           

          X6

          Blow mould opening stopping

          Y6

           

          X7

          Unrod air cylinder in stopping

          Y7

          Manual operating

          X10

          Unrod air cylinder out stopping

          Y10

          Semiautomatic operating

          X11

          Blow mould opening speed turned to slow

          Y11

          Unrod air cylinder selection

          X12

          Blow mould closing speed turned to slow

          Y12

          Preset operating

          X13

          Screw mould up quick speed turned to slow

          Y13

          Address

          X14

          Screw mould down speed turned to slow

          Y14

          Address

          X15

          screw mould up stopping

          Y15

          Address

          X16

          Motor overload

          Y16

          Automatic operating

          X17

          Screw mould protection

          Y17

           

          X20

          Hearting

          Y20

          Data

          X21

          Motor running

          Y21

          Data

          X22

          Core-in stopping

          Y22

          Data

          X23

           

          Y23

          Data

          X24

           

          Y24

          Data

          X25

           

          Y25

          Data

          X26

           

          Y26

          Data

          X27

           

          Y27

          Data

          X30

          Core-out

          Y30

          Data

          X31

          Core-in

          Y31

          Data

          X32

          Air blowing

          Y32

          Data

          X33

          Air exhausting

          Y33

          Data

          X34

          Unrod air cylinder in

          Y34

          Data

          X35

          The products sideslip

          Y35

          Data

          X36

          Screw mould down

          Y36

          Data

          X37

          Standby

          Y37

          Data

          X40

          Screw mould up slowly

          Y40

          Pressure D0

          X41

          Screw mould up quickly

          Y41

          Flow D0

          X42

          Plastic melting

          Y42

          Flow D1

          X43

          Screw back

          Y43

          Flow D2

          X44

          Standby

          Y44

          Flow D3

          X45

          Injection

          Y45

          Flow D4

          X46

          Blow mould closing

          Y46

          Flow D5

          X47

          Blow mould opening

          Y47

          Flow D6

          X50

          Manual operation

          Y50

          Unrod air cylinder turning

          X51

          Semiautomatic operation

          Y51

          Buzzing

          X52

          Automatic operation

          Y52

          Pressure D6

          X53

          Unrod air cylinder selection

          Y53

          Pressure D5

          X54

          Automatic operation cycle time

          Y54

          Pressure D4

          X55

          Indicating for output

          Y55

          Pressure D3

          X56

          Pre-set (Adjusting)

          Y56

          Pressure D2

          X57

          Pressure adjust

          Y57

          Pressure D1

          X60

          Flow adjust

          Y60

          Blow mould opening S1

          X61

          Moving backward

          Y61

          Blow mould closing S2

          X62

          Cyclic moving forward

          Y62

          Screw mould down S3

          X63

          Current value +1

          Y63

          Screw mould up S4

          X64

          Current value –1

          Y64

          Core-out S5

          X65

          Data memory

          Y65

          Injecting S6

          X66

           

          Y66

          Screw back S7

          X67

           

          Y67

          Plastic melting S8

          X70

           

          Y70

          Blow mould opening keep S9

          X71

           

          Y71

          Core-in S9

          X72

           

          Y72

          Wyes starting for motor

          Y73

          Pressurize S12

          Y76

          Air exhausting S15

          Y74

          Pressure keep S13

          Y77

          Unrod air cylinder in or out S16

          Y75

          Air blowing S14

           

          Contact with Pimpex Plastic, China



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