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Precision Preformer

Precision Preformeris a type of rubber blank manufacturing equipment with high efficiency and high accuracy.

It can process a wide range of all rubber material including silicone, Natural rubber, NBR and FKM compound etc. It is able to extrude rubber blanks of circular, rectangle, strip and odd shapes. It is especially suitable to produce sealing, oil seal, tire valves, bottle stoppers, tennis balls, shoe soles and friction lining, etc. It integrates a variety of different functions such as vacuuming, filtrating, extruding, cutting, weighing, counting, etc.


Structure Introduction

Precision Preformer is composed of a ram extruder and a rubber blank cutter attached to the ram head. It is also equipped with hydraulic, vacuum, heating, pneumatic and electrical system. While in operation, the first step is to open the machine head and load the preheated rolled rubber material into the machine from front part of the barrel. Then set the extruding and cutting speed. After taking vacuum, extruding and cutting, the rubber blank with precise weight will be obtained eventually.

1.Extruding device: It is composed of hydraulic cylinder, batching barrel and machine head.

2.Hydraulic device: Hydraulic oil volume in hydraulic cylinder is controlled by the flow valve and the pressure difference prior to and after throttling is controlled at a constant value so as to ensure the precise weight of the rubber blank to be cut.

3.Pneumatic device: It is used to open and close the machine head moved by pneumatic cylinder.

4.Vacuuming system: Before extruding and cutting of rubber material, the vacuumization aims at eliminating the air entrapped inside the barrel and the machine head in the rubber material so as to improve the quality of cured products in the next following process.

5.Heating system: With the adoption of water circulation heating method, the temperature is controlled and displayed by the digital thermostat which can effectively maintain the constant temperature of machine head and barrel.

6.Cutting device: It is composed of frame, a motor and a speed reducer .And under the bottom of the frame is a conveying device.


Main Industries Served:

JYZ Precision Preformer (Auto Series)
Product Features

- PLC control and touch screen operator interface, convenient to input data, password protection.

- Emergency standby keys on touchscreen for real button switches.

- Weigh scale close loop feedback system for adjusting cutter speed automatically to control blank weight.

- RS232 connection to weigh scale.

- 1000 products technics database available to connect.

- Graphic and text display for failure point and cause.

- Reliable safety performance.

- Interlocks designed for head closing, cutter rotating, and ram moving forward & retract.

- Extended center for easier cleaning.

- Reversing stainless steel conveyer to separate the incorrect weight blanks at initial phase.



可选:

- Cutter driven by synchronous belt, lower noise, cutter speed up to 400 RMP.


- Pulse cut, serve motor control, Continuous and non-continuous cutting, cutter speed at 0.5- 400 RPM.


- Ram position displayed by %.


- Telescope conveyor.


- Anti-sticking conveying belt.


- Customers can provide RS232 connection to weigh scale for use with Preformer.


- Rear load.

Technical Parameter

Items

Unit

JYZ150

JYZ200

JYZ250

JYZ200H

JYZ250H

Head option

mm

150

200

250

200

250

Total power

kW

16.0

16.0

28.0

16.0

28.0

Max. extruding pressure

MPa

36.8

20.7

20.7

40.0

25.0

Max. barrel temperature

°C

95

95

95

95

95

Max. die diameter

mm

125

125

190

125

190

Blank weight range

g

0.3~100

0.3~200

0.3~2000

0.3~200

0.3~2000

Blank weight accuracy

%

±1.0

±1.0

±1.0

±1.0

±1.0

Single load capacity

kg

13~15

20~30

60~70

20~30

60~70

Cutter speed

r/min

35~300

35~300

23~300

35~300

23~300

External dimension

mm

4080×1220×1640

4080×1250×1640

5100×1250×1640

4700×1350×1850

5100×1250×1640

Weight

kg

2500

2500

3600

4600

5000

JY Precision Preformer (Manual Series)
Product Features

- Quick return on investment (labor saving & material saving).

- Suitable to preform all rubber material as vulcanizing required.

- Prepare accurate volume for blank and suit mold cavity to reduce flash.

Technical Parameter

Items

Unit

JY150

JY200

JY250

JY200H

JY250H

Barrel inner diameter

mm

150

200

250

200

250

Total power

kW

16.0

16.0

28.0

16.0

28.0

Max. extruding pressure

MPa

36.8

20.7

20.7

40.0

25.0

Max. barrel temperature

°C

95

95

95

95

95

Max. die diameter

mm

125

125

190

125

190

Blank weight range

g

0.3~100

0.3~200

0.3~2000

0.3~200

0.3~2000

Blank weight accuracy

%

±1.0

±1.0

±1.0

±1.0

±1.0

Single feeding capacity

kg

13~15

20~30

60~70

20~30

60~70

Cutter speed

r/min

35~300

35~300

23~300

35~300

23~300

External dimension

mm

4080×1220×1640

4080×1250×1640

5100×1250×1640

4700×1350×1850

5100×1250×1640

Weight

kg

2500

2500

3600

4600

5000

Update for JY Series Precision Preformer (Manual Series)
Product Features

Fit a set of electronic scale loop feedback system unit in the updated JY Precision Preformer, do not need to change former electrical and mechanical structure, and then achieve in controlling the blank weight automatically.
The operator enters the “Target Blank Weight” on touchscreen, and connect the reference data, to control the blank weight adjusting the cutter speed through the scale weigh loop system. It is with the data saving function which is convenient for production management, which enable to reduce material waste caused by repeated manual adjustments (cutter speed & valve setting), Improve the rubber blank weight accuracy meanwhile improve production efficiency.