Thermal Paper Coating Machine
Usage:Used in the production of thermal induced paper. Single conversion coating of coated paper.
The main parameter:
GSM:40-150g/m2
speed:100-300m/min
net width:1092-2400m/m
capacity:10-100t/d
Structure and characteristics:unreeling (automatic paper receiving)+scraper+gas floating type drying oven+pull roll+scraper+gas floating type drying oven+back coating+gas floating type drying oven+the groom cylinder+4 rolls 2 nips soft
calendar +rolling(automatic paper receiving)
Finishing section:high speed roll paper slitting.bobbin paper slitting machine.small coiling block slitting.
Coating preparation: boil glue tank.high speed disperse tank . before grinding jar. sand mill. storage tanks. blending tank. the nose can. vibrating screen
Motor driving section:
frequency control of motor speed distribution transmission.hardened reduce
Detailed Photos
FAQ
Not included:
Building of the house
Foundation building
House ventilation
Installation materials and work
Pipe materials and work
Wire materials and work (links and control lines between equipment operation cabinet)
Pipe materials and work (equipment is connected water delivery and supply)
Lighting system
Electricity receiving device
Steam source for drying and gas source for equipment control (pipeline, valve, water supply used for equipment)
Examination fees by users or their agnets
Devices and design or engineering not mentioned in this note
The coating machine contains five main parts, it is acceptable to purchase only one part of them, and we can provide all the technical data of five parts, which need to pay the technical fee,it depends.Please be informed and understand that.
Product Description
Thermal Paper coating machine
1, Overview:
This coater is an external double-sided coater, which is suitable for coating, drying and finishing of water-soluble coatings (without flammable and explosive solvents) on base paper, and is mainly used to produce thermal paper.
2, Main technical parameters:
2.1 Paper grade: thermal paper
Base paper width: ≤ 1450mm
Base paper weight: 40-60 g/m2
Base paper moisture: 5-6%
Web tension: 250-500N/m
Maximum diameter of unwinding: 1100mm
Maximum winding diameter: 1200mm
2.2 Working speed: 180-200m/min
Design speed: 230m/min
Balanced speed: 300m/min
2.3 Power supply voltage: 3X380/50 (V/HZ)
Control voltage: 220/50 (V/HZ)
Compressed air pressure: 0.5MPa
Clean water pressure: 0.3 MPa
Clean water temperature: 25-37 ºC
Temperature of chilled water: 3-8 ºC
Hot water pressure: 0.3MPa
Steam pressure: 0.5MPa
2.4 Paint property: water-soluble paint.
Coating amount: 4-10g/m2 for pre coating, 2.5-6g/m2 for top coating, 1-2 g/m2 for back wetting
Solid content: scraper 33-40%, air knife 18-23%
2.5 Drying method: single side hot air drying
Back coating: air floating drying oven
2.6 Transmission mode: the main transmission is AC variable frequency step-by-step transmission.
2.7 Color of the machine: the main body of the machine is light milky white, the walking platform and handrails are dark gray, the drive bracket is black, the drive rotating parts are red, and the belt cover is safe color (orange).
2.8 Arrangement mode: the left hand is the operator.
Maximum lifting weight: 3t
Overall dimensions of host (length x width x height): 42000mmX5600mmX6700mm
Gauge: 2100mm
3, Environmental description:
1. Wool tension: design tension: 4.5kN/m, work and use tension: 3-4kN/m
2. Requirements for water, electricity, steam and compressed air
2.1 Clean water
Requirements: clean, colorless and desanded
PH value: 6 ~ 8
Cold water: 15 ºC
2.2 Power supply parameters
AC voltage: 380V ± 10%
Control voltage: AC220V
Frequency: 50HZ ± 1%
2.3 Drying oven is heated by natural gas burner
Adjust steam heating of cylinder group
Drying cylinder: ≤ 0.3Mpa
2.4 Compressed air
Air source pressure: 0.7Mpa
Service pressure: ≤ 0.5Mpa
Quality requirements: filtration, oil removal, water removal and drying
Air supply temperature: ≤ 35 ºC
3. Requirements for dynamic balance of roller:
Roller: Grade G2.5
Dryer: G4
4, This machine is an external coater, with the structure flow as follows:
Paper withdrawing device (automatic paper receiving) - traction roller - scraper coater - first section: open hot air dryer (2 sections, 8m in total) - one section of finishing cylinder group (2 φ 500 chrome plating drying cylinder) - scraper coater - the second section: open hot air dryer (3 sections, 12m in total) - back wetting device - air floating drying oven - finishing cylinder group (3 φ 1500 chrome plating dryer) - two roller calender - paper receiving device (automatic paper receiving).
5, Technical description of main structures and scope of supply:
5.1. Automatic paper splicing and unloading device 1 set
The automatic two-way paper feeding rack consists of a rotary paper feeding rack and a paper feeder.
The rotary paper feeding rack is composed of a frame, a rotary swing arm device, a paper roll brake and transmission device, a paper guide roller, etc.
The paper feeder is composed of swing arm, paper roll speed measuring device, paper pressing roller, paper breaking roller, paper breaking knife, compressed air system and electrical control system.
Maximum roll diameter φ 1100mm.
5.1.1 Rack 1 set
The frame is welded with A3 steel plate and profile steel. HT200 cast iron base plate.
5.1.2 Rotary arm device 1 set
The rotary arm is welded by steel plate, and the rotary arm device is driven by the worm gear transmission box to rotate. The motor of worm gear transmission case is equipped with brake device. The motor power is 3KW.
5.1.3 Roll brake and auxiliary device 1 set
During operation, the braking and assistance of the paper roll are completed by two 7.5KW variable frequency motors.
5.1.4 Paper breaking device 1 set
The paper breaking device is composed of a paper pressing roller, a paper cutter and an air cylinder.
Paper pressing roller 1 set
Overall dimensions φ 190X1600mm
Roll body material: seamless steel pipe rubber coating
Rubber hardness: Shore 50 ± 2 °
Glue coating thickness: 10mm
5.1.5 3-inch air expansion shafts 2 sets (supplied by domestic professional manufacturers).
5.1.6 Compressed air system 1 set
5.2 Scraper coaters 2 sets
The scraper coater is mainly composed of a feeding roller, a scraper back roller, a knife clamp adjusting device, and a paint tank. The pressure and angle between the scraper blade and the paper surface can be easily adjusted. The solid content of the paint is 33~40g/m2.
5.2.1 Rack 1 set
Frame: welded with profile steel and A3 steel plate, wrapped with stainless steel
Base plate: HT200 cast iron
5.2.2 Feeding roller 1 set
Overall dimensions: φ 320X1700
Roll body material: seamless steel pipe wrapped with glue
Cladding material: neoprene, 15mm thick
Bearing lubrication: grease
Equipped with drive motor: 3KW
5.2.3 Scraper back roll 1 set
Overall dimensions φ 500X1700
Roll body material: 20 # steel plate roll welding
Cladding material: neoprene, 20mm thick
Rubber hardness: Shore 75 ± 2 °
Bearing lubrication: grease
Equipped with transmission motor: 5.5KW
5.2.4 Paint metering unit 1 set
The blade is clamped on the cutterbed through several small cylinders. When working, the entire cutterbed is pressed against the paper surface under the pull of the cylinder. The angle between the blade and the paper can be adjusted through a set of worm gear device. The local pressure in the transverse direction between the blade and the paper can be adjusted through the fine adjustment bolt.
The scraper blade is 100mm wide and 0.38mm thick.
The single point adjusting device for banner coating amount is a precision threaded device. The spacing of banner coating is 70mm.
5.2.5 Material trough 1 set
The material trough is made of stainless steel with interlayer, which can be connected with cold water, and can be divided into feeding room, return room and overflow room.
Supply to the flange port of the main pipe.
5.2.6 Limit devices 2 sets
The distance between the back roll and the loading roll, the scraper head and the back roll can be adjusted during operation.
5.2.7 Roller edge lubricating device 1 set
5.2.8 Scraping device 1 set
It is installed on both sides of the feeding roller. The scraper blade is made of rubber and the feeding width can be adjusted.
5.2.9 Compressed air system 1 set
1 control box, equipped with air source processing element, actuating element and control element.
Control unit: scraper beam movement, feeding roller movement, paint groove movement, scraper blade clamping.
5.3. Back water application and coating device 1 set
In this device, a roller immersed in the water tank transfers water (or glue) to a metering roller, and then the metering roller applies the water film (or glue film) on the paper. These two rollers are equipped with separate drives and can be adjusted. The amount of water applied can be controlled by adjusting their speed and the gap between the two rollers.
5.3.1 Rack 1 set
Section steel and A3 steel plate welding, cast iron base plate.
5.3.2 Immersion roll 1 set
Overall dimensions φ 300X1700
Roll body material: seamless steel pipe wrapped with glue
Cladding material: neoprene, 10mm thick
Rubber hardness: Shore 50 ± 2 °
Bearing lubrication: grease
Equipped with drive motor: 3KW
5.3.3 Metering roll 1 set
Overall dimensions φ 320X1700
Roll body material: seamless steel pipe
Roll surface treatment: ceramic coating
Bearing lubrication: grease
Equipped with drive motor 1.5KW
5.3.4 Paper pressing roller 1 set
Overall dimensions φ 150X1700
Roll body material: aluminum guide roll
Roll surface treatment: hardening treatment
Bearing lubrication: grease
5.3.5 Limit devices 2 sets
The gap between the metering roll and the feeding roll, the paper pressing roll and the metering roll can be adjusted during operation.
5.3.6 Scraping device 1 set
It is installed on both sides of the feeding roller. The scraper blade is made of rubber and the feeding width can be adjusted.
5.3.7 Stainless steel water tank 1 set
5.3.8 Compressed air system 1 set
5.4. Hot air drying system 5 sets
Two sets of hot air drying oven are equipped after the first coating;
Three sets of hot air drying oven are equipped after the second coating.
One set of air floating drying oven is equipped after the back is wet.
5.4.1 Open oven for drying 5 sets
The wall thickness of the oven is 80mm, and the skeleton steel is welded. The inside and outside walls of the oven are galvanized plates. The interlayer of the oven wall is filled with insulating rock wool, and the air nozzle is made of stainless steel.
The upper and lower box structure, the box can be opened by the cylinder, and the opening height is 450mm.
Boundary dimension of box (L x W x H): 4mX2mX1.25m.
5.4.2 Hot air system 5 sets
The hot air system consists of heating fan, heat exchanger, regulating damper, temperature measuring device, etc.
Heating fans (4-72NO7C) 5 sets
Fan power: 11KW
Air volume: 20540m3/h
Air pressure: 2115Pa
Fan control mode: relay control
5 sets of hot blast stove
Specification: 200000 kcal
Combustion engine: direct fired proportional combustion unit DCM20
Material of hot air stove: 316S stainless steel for internal use and insulation cotton for external use
It is produced by domestic professional manufacturers.
5.4.3 Air floating oven
The wall thickness of the oven is 80mm, and the skeleton steel is welded. The inner wall of the oven is 1mm 304 stainless steel plate, the outer wall of the oven is 1mm 304 stainless steel plate, the interlayer of the oven wall is filled with insulating rock wool, and the air nozzle is aluminum alloy structure, with a length of 2570mm.
The upper box can be opened by air cylinder with opening height of 400mm, which is convenient for paper introduction and oven cleaning.
The oven and the air duct outside the oven are connected by a flexible air duct, which is made of silicone tape. The distance between the upper and lower air nozzles is 10-50mm adjustable.
Boundary dimension of box: 4000X2000X1700mm
5.4.4 Hot air system
The hot air system consists of hot air blower, air duct, 200000 kcal hot air stove and damper temperature control device. (Including automatic temperature regulating proportional 200000 kcal combustion engine)
Air duct: 1.5mm steel plate is welded and the surface is coated with temperature resistant paint.
Damper: 1.5mm steel plate is welded and the surface is coated with temperature resistant paint.
Hot air blower: one Y5-47, 7C, 30KW.
Temperature control device: including temperature controller, automatic valve, sensor, etc.
5.5. Finishing cylinder 2 sets
After precoating, it is the first group of finishing traction cylinders, which consists of four φ 500X1700 chrome plating cylinder, with upper and lower layers of drying cylinder arranged;
After the second coating, the second group of finishing cylinders is composed of three φ 1500X1700 chrome plated cylinder, with upper and lower layers of drying cylinder arranged.
5.5.1 Finishing traction cylinder 1 set
Q235 steel plate and shape steel welding, cast iron base plate.
5.5.1.1 Drying cylinder 1 set
Cylinder block size φ 500X1700 2 pcs
Cylinder block material: Q235
Surface treatment: chrome plating 0.08mm
Cylinder surface roughness: Ra0.8
Bearing housing: cast iron
Lubricating method: lubricating grease
5.5.1.2 Belt pulleys 2 sets
Material: Q235
5.5.1.3 Two sets of each left and right rotary joints for water inlet and drainage
5.5.2 One set of two sets of drying cylinders
Q235 steel plate and shape steel welding, cast iron base plate.
5.5.2.1 Dryers 3 sets
Cylinder block size φ 1500X1700
Cylinder block material: Q235
Surface treatment: chrome plating 0.08mm
Cylinder surface roughness: Ra0.8
Bearing housing: cast iron
Lubricating method: lubricating grease
5.5.2.2 Steam rotary joints 3 sets
5.6 Single press zone soft calender 1 set
The maximum working line pressure can reach 100KN/m
5.6.1 Rack 1 set
The frame is welded with A3 steel plate and cast iron base plate.
5.6.2 1 hard roll
Roller body size φ 400X1650
Roll body material: chilled cast iron
Surface treatment: chrome plating
Lubrication method: grease
Power: 15KW
5.6.3. Fixed medium and high soft roll 1 pc
Roller body size φ 400X1650
Roll body material: cast iron
Surface treatment: glue coating with thickness of 12.5mm, shore D 88 ± 2
Lubrication method: grease
Power: 15KW
5.6.4 Pressurizing device 1 set
Pneumatic pressurization
5.6.5 Scraper device 1 set
Scraper material: steel plate welding
Blade material: EP blade
5.6.6 Compressed air system 1 set
5.7 Automatic paper receiving device 1 set
The automatic two-way paper receiving rack consists of a rotary paper receiving rack and a paper receiver.
The rotary paper receiving rack is composed of a frame, a rotary swing arm device, a paper roll drive device, a paper guide roller, etc.
The paper receiver is composed of swing arm, paper roll speed measuring device, paper pressing roller, paper breaking roller, paper breaking knife, compressed air system and electrical control system.
Diameter of electrically large paper roll φ 1200mm.
5.7.1 Rack 1 set
The frame is welded with A3 steel plate and profile steel. HT200 cast iron base plate.
5.7.2 Rotary arm device 1 set
The rotary arm is welded by steel plate, and the rotary arm device is driven by the worm gear transmission box to rotate. The motor of worm gear transmission case is equipped with brake device.
The motor power is 3KW.
5.7.3 Paper roll drive device 1 set
When working, the paper roll is driven by two 15KW variable frequency motors.
5.7.4 Paper breaking device 1 set
The paper breaking device is composed of a paper pressing roller, a paper cutter and an air cylinder.
Paper Press roll: 1 pc
Overall dimensions: φ 190X1600mm
Roll body material: seamless steel pipe rubber coating
Rubber hardness: Shore 50 ± 2 °
Glue coating thickness: 10mm
5.7.5 6-inch air expansion shafts 2 sets
Supported by domestic professional manufacturers.
5.7.6 Compressed air system 1 set
5.8 Support system according to drawings
5.8.1 Complete set of rack
Section steel is welded and the surface is sprayed.
The base plate is cast iron.
Provide foundation bolts and correction sizing blocks.
5.8.2 Full set of walking platform
Walkway framework is welded with profiled steel, lined with 5mm checkered plate,
Tread width 650mm,
Handrail is welded with 1-inch seamless steel pipe.
5.9 Rollers as per drawings
5.9.1 Paper guide roller φ 120X1700 23 pcs
Surface anodic passivation treatment
5.9.2 Movable arc rollers 3 sets
Roller body size φ 100X1700
Roll body material: seamless steel pipe
Roll surface treatment: chrome plating
Radian adjustment: worm gear
5.9.3 Tension roll devices 3 sets
Roller body size φ 120X1700
Roll body material aluminum alloy
Roll surface treatment anodizing
5.9.4 Traction rolls 2 sets
Roller body size φ 340X1700
Roll body material: 20 # steel plate roll welding
Roll surface treatment: rubber coating 12.5mm
Belt drive shaft.
5.10 Main engine transmission system and electrical control
It includes frequency motor, gear reducer, coupling and protective device.
5.11 Main driving point parameters KW
| Item |
Transmission point name |
Kw |
Qty |
Transmission model |
| 1 |
Paper unreel brake motor |
7.5 |
2 |
Frequency conversion |
| 2 |
S roller rotary drive |
4 |
1 |
| 3 |
Scrape roller back motor |
5.5 |
2 |
| 4 |
Lower roller for two roll calender drive |
15 |
2 |
| 5.1 |
Roller drive for pre-drying |
4 |
1 |
| 6 |
Cylinder drive for item 5.1 |
5.5 |
1 |
| 5.2 |
Guide roller drive for second drying |
4 |
1 |
| 6 |
Cylinder drive for item 5.2 |
15 |
1 |
| 7 |
Reeling roll drive |
15 |
2 |
| |
Total |
118.5KW |
|
|
5.12.2 Auxiliary motor parameters KW
| Item |
Transmission point name |
Kw |
Qty |
Transmission model |
| 1 |
Unreel and reel paper roller drive |
3 |
2 |
Frequency conversion |
| 2 |
Scraper feeding roller drive |
1.5 |
2 |
| 3 |
Back coating metering roller drive |
5.5 |
1 |
| 4 |
Hot air fan for drying |
11 |
6 |
| |
Total |
78.9KW |
|
|
5.12.3 Electrical control system
The whole machine adopts German Siemens human-machine interface and DP field bus control system.
Shanghai Kedi Electric tension control system is adopted for tension control;
The frequency converter is a full digital AC frequency conversion unit of Shenzhen Huichuan.
The touch screen realizes man-machine dialogue, speed digital display, and automatic control of all parts of the equipment provided, as follows:
The action of the paper withdrawing rack, the heating of the hot air system, the moisture exhaust fan, the temperature display of the hot air system, the compressed air system, the action of the air knife coating, the action of the scraper coating, the action of the drying box, the action of the paper reeler, the action of the continuous paper receiving, the speed up and down of the main drive system of the whole machine and the interlock control.
- Coating paint preparation system
| Disperse tank |
With stainless steel tank (frequency conversion control) |
3 sets |
| Boiling Glue tank |
3 sets |
| Mixing tank |
1 set |
| Storage tank |
1 set |
| Motor head tank |
2 sets |
| Recycle pipe |
3 sets |
| Electric diaphragm pump |
2 sets |
| Eneumatic diaphragm pump |
3 sets |
| Back coating tank |
1 set |
| Grinding miller |
60L |
2 sets |
| Frequency conversion box |
|
Full set |
7, Scope of supply
7.1 The Supplier shall provide:
the machinery and electrical appliances from paper withdrawal to paper receipt listed above (the other details not listed shall be subject to the Supplier's drawings), including all the paper guiding rollers and drive motors, reducers, pneumatic control devices and electrical controls on the general assembly drawing.
7.2 The Supplier does not provide:
Air compressor, cable, etc.
Civil engineering design and construction.
Materials required for commissioning and installation.
Wiring from switch cabinet to control box.
Power supply and wiring.
The air pipe from the air source to the control box.
Steam source, compressed air source and water source.
Pipes and valves between the water source and the main engine, and condensate discharge pipes.
Lighting and wiring inside the machine.
Thermal insulation material of air duct.
8, Quality assurance
The contractor guarantees that the manufacturing of the equipment provided within the scope of supply meets the standards of the paper machine industry of the Ministry of Light Industry.
The warranty period of this product is 18 months.
9, Technical documents and data:
The seller shall provide the following technical data free of charge:
9.1 Within 30 legal working days after the contract comes into effect, the preliminary data of civil design (general equipment drawing and foundation drawing) shall be provided.
9.2 Provide English version of technical documents such as equipment general drawing, foundation drawing, installation drawing, design and operation instructions, wearing parts drawing, electrical schematic diagram, external wiring diagram, terminal list, etc.
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