CN112337718B - Precision coating machine for rubber coated fabric - Google Patents
Precision coating machine for rubber coated fabric Download PDFInfo
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- CN112337718B CN112337718B CN202011049429.1A CN202011049429A CN112337718B CN 112337718 B CN112337718 B CN 112337718B CN 202011049429 A CN202011049429 A CN 202011049429A CN 112337718 B CN112337718 B CN 112337718B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
- B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
- B05C1/06—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length by rubbing contact, e.g. by brushes, by pads
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C9/00—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
- B05C9/08—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation
- B05C9/14—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation the auxiliary operation involving heating or cooling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/04—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases
- B05D3/0406—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases the gas being air
- B05D3/0413—Heating with air
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/04—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases
- B05D3/0406—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases the gas being air
- B05D3/0426—Cooling with air
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/007—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by mechanical or physical treatments
- D06N3/0077—Embossing; Pressing of the surface; Tumbling and crumbling; Cracking; Cooling; Heating, e.g. mirror finish
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0086—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique
- D06N3/0088—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique by directly applying the resin
Abstract
The invention discloses a precise coating machine for rubber coated fabrics, which comprises a rack, wherein an unreeling unit, a rotary multi-knife coating unit, a pretreatment gum dipping unit, a drying unit, a cooling unit and a reeling unit are sequentially arranged on the rack along the conveying direction of a coated substrate. The precision coating machine can be used for carrying out fabric pretreatment and production and manufacture of coated fabric products. The coating unit adopts a rotary multi-knife coating structure, and can coat fabrics with different thicknesses, different base fabrics, different coatings and different process requirements; the drying unit adopts an internal circulation type drying oven and a secondary return air utilization technology, the thermal efficiency of the internal circulation type drying oven is improved by more than 10% compared with that of a drying oven with a traditional structure, and the secondary return air utilization technology saves 70% of heat energy loss; the cooling unit adopts a multiple-effect cooling mode of natural cooling and medium cooling, so that the coating of the coated fabric is slowly cooled, the shrinkage of the coated fabric is reduced, and the quality stability of the coated fabric product is improved.
Description
Technical Field
The invention belongs to the technical field of precision coating equipment, and particularly relates to a precision coating machine for rubber coated fabrics.
Background
Rubber-coated fabrics and articles are an important branch of the rubber industry, and the articles are widely applied to every corner of social life, and the coated fabric articles are used in various fields of industry, agriculture, navigation, aviation and the like. The rubber precision coating machine is special equipment for manufacturing rubber coated fabrics, and the structure, precision and stability of the equipment play a critical role in the manufacturing quality of the rubber coated fabrics. The traditional rubber coating is annular coating, and has the advantages of high labor intensity, simple structure, low equipment precision and poor stability. The coating unit adopts a rotary multi-knife coating structure, the drying unit adopts an internal circulation type drying oven and secondary return air utilization technology, the cooling unit adopts a multi-effect cooling mode of natural cooling and medium cooling, the equipment adopts a PLC system + an intelligent housekeeper system + a cloud service technology, and the equipment is connected with a Maiss system in production, manufacturing and operation, so that the production, manufacturing and operation management of coated fabric products are more convenient, intelligent and automatic, and equipment manufacturers can remotely process and solve equipment faults in the production process.
Disclosure of Invention
The invention aims to provide a precise coating machine for rubber coated fabrics, which solves the problems of poor coating precision, high labor intensity and low production efficiency of the existing rubber coating machine.
The invention adopts the technical scheme that the precise coating machine for the rubber coated fabric comprises a coating machine frame, wherein an unreeling unit, a rotary multi-knife coating unit, a pretreatment gum dipping unit, a drying unit, a cooling unit and a reeling unit are sequentially arranged on the coating machine frame along the conveying direction of a coated substrate.
The present invention is also characterized in that,
the rotary multi-knife coating unit comprises a rack, wherein an air cylinder is arranged at the upper part of the rack, the lower part of a piston rod of the air cylinder is connected with the upper part of a bearing support, the lower part of the bearing support is connected with the upper part of a precision screw rod, the lower part of the precision screw rod is connected with a main shaft of a precision servo motor, a rotary knife rest is further fixed on the bearing support, and three coating knives are uniformly fixed on the rotary knife rest along the circumferential direction; a transmission shaft is fixed at the center of the rotary tool rest, the transmission shaft is connected with a main shaft of a tool rest rotating motor through a tool rest coupling, and the tool rest rotating motor is fixed on the rotary tool rest; the frame is also fixed with a coating bottom roller which is positioned under the rotary knife rest, the feeding side of the coating bottom roller is provided with a deviation rectifying roller, the lower part of the coating bottom roller is provided with an arc roller, and the lower part of the arc roller is provided with a coating guide roller.
The drying unit comprises a box body and an air cavity, the air cavity is positioned in the box body, two air inlets are formed in the air cavity, and an air outlet is formed in the center of the lower surface of the box body; two air inlet volume adjusting systems and an air exhaust volume adjusting system are also arranged in the box body; the air inlet volume adjusting system comprises a heater, a filter is arranged on one side of the heater, a precise servo motor b is arranged in the heating pipeline, an output shaft of the precise servo motor b is connected with a connecting rod a, the end part of the connecting rod a is connected with a choke plate a, the other side part of the heater is connected with an air inlet fan through a pipeline, and the air inlet fan is connected with an air inlet pipeline; the air exhaust volume adjusting system comprises an air exhaust fan, the air exhaust fan is connected with an air outlet through a pipeline, a precise servo motor c is arranged in the pipeline, an output shaft of the precise servo motor c is connected with a connecting rod b, the end part of the connecting rod b is connected with a choke plate b, the pipeline is also connected with an air exhaust recycling pipeline, the air exhaust recycling pipeline is connected with one air inlet, and the other side of the air exhaust fan is connected with an air exhaust pipeline; the air outlet of the air cavity is provided with a plurality of air volume adjusting plates a which are horizontally uniform, and each air volume adjusting plate a is provided with an air nozzle.
An oven guide rod is also arranged in the box body, is horizontally arranged and is positioned at the lower part of the air quantity adjusting plate a; one end of the oven guide rod is provided with an electrostatic device, and the other end of the oven guide rod is provided with a deviation correcting device.
The box body is provided with a concentration alarm device and a pressure gauge, and the center of the upper surface of the box body is provided with an explosion-proof opening; the bottom of the air inlet pipeline is provided with an air quantity monitoring meter a; and a wind quantity monitoring meter b is arranged at the bottom of the exhaust pipeline.
The concentration alarm device, the pressure gauge, the air volume monitoring meter a, the precise servo motor b, the precise servo motor c, the air volume monitoring meter b and the PLC are electrically connected.
The cooling unit comprises an air cooling box cooling part and a cooling roller cooling part, the air cooling box cooling part comprises an air cooling box, a plurality of conveying rollers which are continuously arranged in a Z shape are vertically arranged in the upper part of the air cooling box, each conveying roller comprises guide rollers which are vertically arranged, the two guide rollers are connected through an obliquely arranged tension roller, an air inlet fan is fixed at the top of the air cooling box through a support, an air flow adjusting plate is arranged on the upper surface of the air cooling box, and an air outlet of the air inlet fan is opposite to the air flow adjusting plate; the air outlet is arranged at the bottom of the cold air box and connected with an air exhaust fan through a pipeline.
The cooling part of the cooling roller comprises a cooling roller wallboard, the upper part of the cooling roller wallboard is fixedly provided with the cooling roller, and guide rollers a are arranged on the upper part and the lower part of the cooling roller wallboard and are positioned at the lower part of the cooling roller; the cooling roller wallboard and the cold air box are arranged side by side, and the distance is 300-500 mm.
The chill roll includes inside hollow cylindrical barrel, center department is provided with the center tube in the cylindrical barrel, cylindrical barrel is stretched out to center tube one end, and stretch out the end and be connected with the cooling water inlet tube, the center tube other end is provided with the opening, cylindrical barrel inner wall both sides are provided with the honeycomb duct, the honeycomb duct both ends all are provided with the clearance with cylindrical barrel both ends, and the one end of one of them honeycomb duct is connected with the circulation outlet pipe, circulation outlet pipe and cooling water inlet tube are located same one side of cylindrical barrel, inside the guide plate that is the heliciform and arranges that is provided with of honeycomb duct.
The beneficial effect of the invention is that,
the precision coating machine can be used for carrying out fabric pretreatment and production and manufacture of coated fabric products. The coating unit adopts a rotary multi-knife coating structure, and can coat fabrics with different thicknesses, different base fabrics, different coatings and different process requirements; the drying unit adopts an internal circulation type drying oven and a secondary return air utilization technology, the heat efficiency of the internal circulation type drying oven is improved by more than 10% compared with that of a drying oven with a traditional structure, and the secondary return air utilization technology saves 70% of heat energy loss; the cooling unit adopts a multiple-effect cooling mode of natural cooling and medium cooling, so that the coating of the coated fabric is slowly cooled, the shrinkage of the coated fabric is reduced, and the quality stability of the coated fabric product is improved. By adopting a PLC system + intelligent housekeeper system + cloud service technology, the problems of high labor intensity, low production efficiency, poor automation and precision and the like of the traditional coating machine are effectively solved.
Drawings
FIG. 1 is a schematic view of a precision coater for rubber-coated fabric according to the present invention;
FIG. 2 is a schematic view showing the construction of a rotary multi-blade coating unit in a precision coater for rubber-coated fabric according to the present invention;
FIG. 3 is a schematic view showing the structure of a rotary blade holder in a precision coater for rubber-coated fabric according to the present invention;
FIG. 4 is a schematic structural view of a drying unit in the precision coater for rubber-coated fabric according to the present invention;
FIG. 5 is a schematic structural diagram of an air intake quantity regulating system in a precision coating machine for rubber coated fabrics according to the present invention;
FIG. 6 is a schematic structural view of an exhaust air volume adjusting system in a precision coater for rubber-coated fabric according to the present invention;
FIG. 7 is a schematic view showing the structure of a cooling part of an air-cooling box of a cooling unit in a precision coater for rubber-coated fabric according to the present invention;
FIG. 8 is a schematic view showing the structure of a cooling part of a cooling roll of a cooling unit in a precision coater for rubber-coated fabric according to the present invention;
FIG. 9 is a schematic view showing the structure of a cooling roll in a precision coater for rubber-coated fabric according to the present invention.
1. An unreeling unit, 2 a rotary multi-knife coating unit, 3 a pretreatment gum dipping unit, 4 a drying unit, 5 a cooling unit, 6 a reeling unit, 2-1 cylinders, 2-2 rotating knife rests, 2-3 coating knives, 2-4 coated fabrics, 2-5 transmission shafts, 2-6 bearing supports, 2-7 precision screw rods, 2-8 precision servo motors a, 2-9 coating bottom rollers, 2-10 deviation correcting rollers, 2-11 arc rollers, 2-12 coating guide rollers, 2-13 machine frames, 4-1 a concentration alarm device, 4-2 explosion-proof ports, 4-3 pressure gauges, 4-4 air inlets, 4-5 air inlet fans, 4-6 heaters, 4-7 filters, 4-8 parts of a precision servo motor b, 4-9 parts of a connecting rod a, 4-10 parts of an air outlet, 4-11 parts of an air exhaust fan and 4-12 parts of an air volume adjusting plate a; 4-13. blast nozzle; 4-14 oven guide rods; 4-15. air cavity; 4-16, a deviation rectifying device; 4-17. an electrostatic device; 4-18. a box body; 4-19 supports, 4-20 air inlet pipes, 4-21 choke plates a, 4-22 air volume monitoring meters a, 4-23 precise servo motors c, 4-24 connecting rods b, 4-25 choke plates b, 4-26 exhaust recycling pipes, 4-27 exhaust pipes, 4-28 air volume monitoring meters b, 5-1 cooling rollers, 5-2 tension rollers, 5-3 guide rods, 5-4 air volume adjusting plates, 5-5 air outlets, 5-6 air inlets, 5-7 exhaust outlets, 5-8 exhaust fans, 5-9 cold air boxes, 5-10 air box supports, 5-11 cooling roller wall plates, 5-12 guide rods a, 5-1-1 cylindrical barrels, 5-1-2 parts of guide plate, 5-1-3 parts of central tube, 5-1-4 parts of guide tube, 5-1-5 parts of cooling water inlet tube and 5-1-6 parts of circulating water outlet tube.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
The invention relates to a precision coating machine for rubber coated fabrics, which comprises a coating machine frame as shown in figure 1, wherein an unreeling unit 1, a rotary multi-blade coating unit 2, a pretreatment dipping unit 3, a drying unit 4, a cooling unit 5 and a reeling unit 6 are sequentially arranged on the coating machine frame along the conveying direction of a coated substrate,
the unreeling unit 1 adopts a single station to unreel, the lower part is unreeling, the upper part is cloth liner rolling, and the middle part is a pneumatic pressing and cutting device and a sewing and cloth receiving device. The unwinding unit controls the surface tension of the coated fabric by a closed loop tension control system to provide constant tension and traction power to the coated fabric.
And the pretreatment gumming unit 3 is mainly used for pretreating the coated fabric before coating. The coated fabric is dipped into the gap of the coated fabric through the action of a dip-coating roller in a dipping tank, and then the excess glue is removed through an extrusion roller and enters a drying unit for drying.
The winding unit 6 adopts a single station for unwinding, the lower part is for winding, the upper part is for laying cloth for unwinding, and the middle part is a pneumatic pressing and cutting device. The unwinding unit controls the surface tension of the coated fabric by a closed-loop tension control system, and provides constant tension and tightening power for the coated fabric.
The rotary multi-knife coating unit 2 comprises a rack 2-13, wherein an air cylinder 2-1 is arranged at the upper part of the rack 2-13, the lower part of a piston rod of the air cylinder 2-1 is connected with the upper part of a bearing support 2-6, the lower part of the bearing support 2-6 is connected with the upper part of a precision screw rod 2-7, the lower part of the precision screw rod 2-7 is connected with a main shaft of a precision servo motor 2-8, a rotary knife rest 2-2 is also fixed on the bearing support 2-6, three coating knives 2-3 are fixed on the rotary knife rest 2-2, and the three coating knives 2-3 are uniformly distributed along the circumferential direction; as shown in fig. 3, a transmission shaft 2-5 is fixed at the center of the rotary tool holder 2-2, the transmission shaft 2-5 is connected with a main shaft of a tool holder rotating motor through a tool holder coupler, and the tool holder rotating motor is fixed on the rotary tool holder 2-2;
a coating bottom roller 2-9 is also fixed on the frame 2-13, the coating bottom roller 2-9 is positioned under the rotary knife rest 2-2, and two ends of the coating bottom roller 2-9 are fixed with the frame 2-13 through a bearing base;
the feeding side of the coating bottom roller 2-9 is provided with a deviation rectifying roller 2-10 (the fabric is opposite to the traveling direction of the coating bottom roller), the deviation rectifying roller 2-10 is arranged in front of the coating bottom roller 2-9 according to the feeding direction of the coated fabric 2-4, the deviation rectifying roller 2-10 is used for adjusting the position of the fabric, the coating position of the fabric on the coating bottom roller 2-9 is ensured, and the fabric is prevented from deviating from the coating roller so as to avoid slurry leakage and influence on the coating quality and progress; two ends of the rectification roller 2-10 are fixed with the frame 2-13 through a bearing base; the horizontal line of the top end of the rectification roller 2-10 is upward at an angle of 10-20 degrees compared with the horizontal line of the top end of the coating bottom roller 2-9.
The lower part of the coating bottom roller 2-9 is provided with an arc roller 2-11, and the lower part of the arc roller 2-11 is provided with a coating guide roller 2-12; the curved roller 2-11 spreads the fabric flat for uniform coating, and the coating guide roller 2-12 is a roller through which the fabric is moved forward under tension by the coating guide roller 2-12.
The two ends of the arc-shaped roller 2-11 and the coating guide roller 2-12 are fixed with the frame 2-13 through a bearing base.
The coating knife 2-3 is a knife shape with various structures, the knife shape is selected according to the coating thickness of the coated fabric, the viscosity of coating slurry and the material characteristics of the fabric, the coating knife 2-3 is installed on the coating knife rest 2-2, the coating knife rest adopts an integral structure formed by performing grinding processing on thick-wall steel, the precision is high, and no deformation is caused. The circumference of the coating knife rest 2-2 is equally provided with 3 coating knives 2-3 with different knife shapes. The coating knife 2-3 and the coating knife rest 2-2 adopt a quick-change structure, so that the knife shape is convenient to change.
The running process of the rotary multi-knife coating unit 2 takes the running direction of a fabric (coated fabric 2-4) as a main line, the fabric enters the guide rollers 2-12 of the rotary multi-knife coating unit after passing through the emptying unit, the fabric is run to the arc-shaped rollers 2-11 through the coating guide rollers 2-12, the fabric is flattened by the arc-shaped rollers 2-11 and then runs to the rectification rollers 2-10, and the fabric runs to the coating bottom rollers 2-9 after being adjusted by the coating positions of the rectification rollers 2-10. The cylinder 2-1 pushes a cylinder piston rod, the piston rod pushes a bearing support 2-6 to move, the bearing support 2-6 drives a rotary tool rest 2-2 to move downwards, a coating tool 2-3 moves downwards along with the rotary tool rest 2-2 to a precise adjustment upper limit position, then a precise adjusting motor 2-8 is matched with a high-precision speed reducer to drive a precise screw rod 2-7, a coating gap is adjusted according to the coating thickness requirement, the precise screw rod 2-7 continuously drives the bearing support 2-6 and the rotary tool rest 2-2 to move downwards to a proper position, a fabric enters the coating gap through a coating bottom roller 2-9, and coating slurry is uniformly scraped and coated on the fabric through the coating tool 2-3 to form a coated fabric. In the process of fabric pretreatment, the pressure is released by the air cylinder 2-1 to push the air cylinder piston to move upwards, the whole knife rest is driven to be lifted, the coating gap is at the maximum position at the moment, and the fabric is ensured to enter the pretreatment gum dipping unit 3 through the coating gap.
As shown in fig. 4, the drying unit 4 comprises a box body 4-18 and an air cavity 4-15, the air cavity 4-15 is located in the box body 4-18, two air inlets 4-4 are arranged on the air cavity 4-15, and the box body 4-18 is fixed on a support 4-19; a concentration alarm device 4-1 and a pressure gauge 4-3 are arranged on the box body 4-18, and an explosion-proof opening 4-2 is formed in the center of the upper surface of the box body 4-18; an air outlet 4-10 is arranged at the center of the lower surface of the box body 4-18;
two air inlet adjusting systems and an air exhaust adjusting system are also arranged in the boxes 4-18; as shown in fig. 5, the air intake and volume regulation system comprises a heater 4-6, a filter 4-7 is arranged on one side of the heater 4-6, a heating pipeline is positioned on one side of the heater 4-6, a precise servo motor b4-8 is arranged in the heating pipeline, an output shaft of the precise servo motor b4-8 is connected with a connecting rod a4-9, the end of the connecting rod a4-9 is connected with a choke plate a4-21, the other side of the heater 4-6 is connected with an air intake fan 4-5 through a pipeline, the air intake fan 4-5 is connected with an air intake pipeline 4-20, the air intake pipeline 4-20 is respectively connected with two air inlets 4-4, and the bottom of the air intake pipeline 4-20 is provided with an air volume monitoring meter a 4-22;
the working principle of the air inlet volume adjusting system is as follows: the air inlet fan 4-5 is turned on, cold air (cold air) enters from the opening of the heating pipeline, the wind blocking plate a4-21 is connected with the connecting rod a4-9, and the rotation angle of the wind blocking plate is adjusted through the precision servo motor b4-8 to control the entering air quantity. Cold air (cold air) is filtered by a filter 4-7 and then enters a heater 4-6, and after the temperature of the oven is heated to the temperature required by the oven, hot air is sent into the oven through an air inlet pipeline by an air inlet fan (exhaust fan) 4-5. The air quantity monitoring meters a4-22 are arranged at the lower parts of the air inlet pipes 4-20, the air quantity can be converted into analog signals to be transmitted to the PLC, in addition, the precision servo motor feeds back the adjustment quantity to the driver, the driver transmits the signals to the PLC, the PLC processes the transmitted signals and returns the signals to the servo motor driver, and the driver controls the precision servo motor b4-8 to adjust the angular positions of the choke plates a4-21, so that the air inlet quantity is accurately adjusted.
As shown in fig. 6, the exhaust air volume adjusting system comprises an exhaust fan 4-11, the exhaust fan 4-11 is connected with an exhaust outlet 4-10 through a pipeline, the pipeline is positioned at one side of the exhaust fan 4-11, a precise servo motor c4-23 is arranged in the pipeline, an output shaft of the precise servo motor c4-23 is connected with a connecting rod b4-24, the end part of the connecting rod b4-24 is connected with a choke plate b4-25, the pipeline is also connected with an exhaust air recycling pipeline 4-26, the exhaust air recycling pipeline 4-26 is connected with one air inlet 4-4, the other side of the exhaust fan 4-11 is connected with an exhaust pipeline 4-27, the bottom of the exhaust pipeline 4-27 is provided with an air volume monitoring meter b4-28, and the exhaust pipeline 4-27 is connected with the exhaust pipeline;
the working principle of the air exhaust air quantity adjusting system is as follows: the exhaust fan 4-11 is opened, hot air used in the oven is exhausted from the exhaust port 4-10, the wind blocking plate b4-25 is connected with the connecting rod b4-24, and the rotation angle of the wind blocking plate is adjusted through the precise servo motor c4-23 to control the exhaust air volume. One part of hot air exhausted from the air exhaust port 4-10 enters the air inlet 4-4 through an air exhaust recycling pipeline 4-26 for secondary recycling, and the other part enters the waste discharge pipeline through an air exhaust pipeline 4-27 for treatment under the action of an exhaust fan 4-11. The lower parts of the exhaust pipelines 4-27 are provided with air volume monitoring meters b4-28, which can convert the air volume into analog signals to be transmitted to a PLC, in addition, a precise servo motor feeds back the adjustment volume to a driver, the driver transmits the signals to the PLC, the PLC processes the transmitted signals and returns the signals to the servo motor driver, and the driver controls the precise servo motors c4-23 to adjust the angular positions of the choke plates b4-25, so as to accurately adjust the exhaust volume.
Air quantity adjusting plates a4-12 are arranged at air outlets of the air cavities 4-15, a plurality of air quantity adjusting plates a4-12 are arranged and are uniform in the horizontal direction, and each air quantity adjusting plate a4-12 is provided with an air nozzle 4-13; an oven guide rod 4-14 is also arranged in the box body 4-18, the oven guide rod 4-14 conveys the dried coated fabric, and the oven guide rod 4-14 is horizontally arranged and is positioned at the lower part of the air volume adjusting plate 4-12; one end of the oven guide roller 4-14 is provided with an electrostatic device 4-17, the electrostatic device 4-17 is positioned at the inlet of the coated fabric 2-4, the other end of the oven guide roller 4-14 is provided with a deviation correcting device 4-16, and the deviation correcting device 4-16 is positioned at the outlet of the coated fabric 2-4;
the concentration alarm device 4-1, the pressure gauge 4-3, the air volume monitoring meter a4-22, the precise servo motor b4-8, the precise servo motor c4-22 and the air volume monitoring meter b4-28 are electrically connected with the PLC;
the operation process of the oven unit 4 takes the operation direction of the coated fabric as a main line, and the function of the oven unit is to realize effective drying and shaping of the rubber coated fabric. The air volume, the temperature and the like in the oven unit 4 enter the PLC controller by using temperature and air volume measurement and control points in the box bodies 4-18, and the temperature and the air volume are controlled and adjusted by PID. When the volatile gas in the oven body is too high and exceeds the safety warning in the operation process of the oven unit 4, the concentration alarm 4-1 can give an alarm in time, and the alarm is solved by adding fresh air or increasing exhaust air; the explosion-proof opening 4-2 at the top of the box body 4-18 is used for cracking the explosion-proof membrane 4-2 when the pressure exceeds the bearing pressure of the oven, and the pressure is removed, so that the safety of human bodies and equipment is ensured. The oven unit 4 adopts an oil heating and hot air control mode, an internal circulation structure and a secondary waste heat recycling technology, the heat efficiency is high and can reach 98 percent, the traditional energy-saving and emission-reducing effect is only 85 percent at present, and in addition, the energy consumption loss can be reduced by 70 percent and the exhaust emission can be reduced.
The cooling unit 5, the cooling unit 5 includes air-cooled case cooling part and chill roll cooling part, and wherein the air-cooled case cooling part carries out the natural cooling to the coating fabric surface through natural wind, and the chill roll cooling part is with cold water as the medium, carries out cooling to the coating fabric surface through chill roll 5-1 roll body special construction.
As shown in fig. 7, the cooling part of the air cooling box comprises a cold air box 5-9, the cold air box 5-9 is fixed on an air box bracket 5-10, a plurality of conveying rollers which are continuously arranged in a zigzag manner are arranged in the upper part of the cold air box 5-9, each conveying roller comprises guide rods 5-3 which are arranged up and down, the two guide rods 5-3 are connected through tension rollers 5-2 which are obliquely arranged, and two ends of each guide rod 5-3 and two ends of each tension roller 5-2 are fixed on the inner wall of the cold air box 5-9 through mounting seats;
an air inlet fan 5-6 is fixed at the top of the cold air box 5-9 through a support, an air volume adjusting plate 5-4 is arranged on the upper surface of the cold air box 5-9, and an air outlet 5-5 of the air inlet fan 5-6 is opposite to the air volume adjusting plate 5-4; the bottom of the cold air box 5-9 is provided with an air outlet 5-7, and the air outlet 5-7 is connected with an air exhaust fan 5-8 through a pipeline;
as shown in FIG. 8, the cooling part of the cooling roller comprises a cooling roller wall plate 5-11, the upper part of the cooling roller wall plate 5-11 is fixed with a cooling roller 5-1, and two ends of the cooling roller 5-1 are fixed on the cooling roller wall plate 5-11 through mounting seats; guide rollers a5-12 are arranged on the upper part and the lower part of the cooling roller wall plate 5-11, and the guide rollers a5-12 are all positioned at the lower part of the cooling roller 5-1; two ends of the guide roller a5-12 are fixed on the cooling roller wall plates 5-11 through mounting seats; the cooling roller wall plates 5-11 and the cold air boxes 5-9 are arranged side by side, and the spacing is 300-500 mm.
As shown in fig. 9, the cooling roll 5-1 comprises a cylindrical barrel 5-1-1 with a hollow interior, and two ends of the cylindrical barrel 5-1-1 are fixed on the cooling roll wall plates 5-11; the center of the cylindrical barrel 5-1-1 is provided with a central tube 5-1-3, one end of the central tube 5-1-3 extends out of the cylindrical barrel 5-1-1, the extending end is connected with a cooling water inlet tube 5-1-5, the other end of the central tube 5-1-3 is provided with an opening, two sides of the inner wall of the cylindrical barrel 5-1-1 are provided with a flow guide tube 5-1-4, two ends of the flow guide tube 5-1-4 and two ends of the cylindrical barrel 5-1-1 are provided with gaps, one end of one flow guide tube 5-1-4 is connected with a circulating water outlet tube 5-1-6, the circulating water outlet tube 5-1-6 and the cooling water inlet tube 5-1-5 are positioned on the same side of the cylindrical barrel 5-1-1, the guide pipe 5-1-4 is internally provided with guide plates 5-1-2 which are spirally arranged, and a cooling water inlet pipe 5-1-5 and a circulating water outlet pipe 5-1-6 are respectively connected with a circulating water inlet and a circulating water outlet of the cold and hot integrated machine to form a closed cycle.
Cooling water enters a central pipe of the cooling roller 5-1 through a cooling water inlet pipe 5-1-5, the cooling water in the central pipe is blocked by roller walls at two ends of the roller body to form a split flow, the split flow firstly enters a flow guide pipe 5-1-4 and then flows back to the flow guide pipe 5-1-4, the cooling water runs in a spiral flow guide plate 5-1-2 and finally is collected into a circulating water outlet pipe of the cooling roller 5-1;
the coated fabric passes through the last guide roller 5-3 of the cold air box part and then is directly coated on the cooling roller 5-1 and then reaches the upper guide roller a5-12 to form a wrap angle, so that the cooling area and the cooling time are increased, and the cooling efficiency is improved. Finally the coated fabric is guided to the take-up unit by guide rollers b5-12 below the chill roll wall panels 5-11.
Claims (5)
1. The precise coating machine for the rubber coated fabric is characterized by comprising a coating machine frame, wherein an unreeling unit (1), a rotary multi-knife coating unit (2), a pretreatment gum dipping unit (3), a drying unit (4), a cooling unit (5) and a reeling unit (6) are sequentially arranged on the coating machine frame along the conveying direction of a coated substrate;
the rotary multi-knife coating unit (2) comprises a rack (2-13), wherein an air cylinder (2-1) is arranged at the upper part of the rack (2-13), the lower part of a piston rod of the air cylinder (2-1) is connected with the upper part of a bearing support (2-6), the lower part of the bearing support (2-6) is connected with the upper part of a precision screw rod (2-7), the lower part of the precision screw rod (2-7) is connected with a main shaft of a precision servo motor (2-8), a rotary knife rest (2-2) is further fixed on the bearing support (2-6), and three coating knives (2-3) are uniformly fixed on the rotary knife rest (2-2) along the circumferential direction; a transmission shaft (2-5) is fixed at the center of the rotary tool rest (2-2), the transmission shaft (2-5) is connected with a main shaft of a tool rest rotating motor through a tool rest coupling, and the tool rest rotating motor is fixed on the rotary tool rest (2-2); a coating bottom roller (2-9) is further fixed on the rack (2-13), the coating bottom roller (2-9) is located right below the rotary knife rest (2-2), a deviation rectifying roller (2-10) is arranged on the feeding side of the coating bottom roller (2-9), an arc-shaped roller (2-11) is arranged on the lower portion of the coating bottom roller (2-9), and a coating guide roller (2-12) is arranged on the lower portion of the arc-shaped roller (2-11);
the drying unit (4) comprises a box body (4-18) and an air cavity (4-15), the air cavity (4-15) is located in the box body (4-18), two air inlets (4-4) are formed in the air cavity (4-15), and an air outlet (4-10) is formed in the center of the lower surface of the box body (4-18); two air inlet adjusting systems and an air exhaust adjusting system are also arranged in the box bodies (4-18); the air inlet and air volume adjusting system comprises a heater (4-6), a filter (4-7) is arranged on one side of the heater (4-6), a heating pipeline is positioned on one side of the heater (4-6), a precise servo motor b (4-8) is arranged in the heating pipeline, an output shaft of the precise servo motor b (4-8) is connected with a connecting rod a (4-9), the end part of the connecting rod a (4-9) is connected with a choke plate a (4-21), the other side part of the heater (4-6) is connected with an air inlet fan (4-5) through a pipeline, the air inlet fan (4-5) is connected with an air inlet pipeline (4-20), and the air inlet pipeline (4-20) is respectively connected with two air inlets (4-4); the exhaust air quantity adjusting system comprises an exhaust fan (4-11), the exhaust fan (4-11) is connected with an exhaust outlet (4-10) through a pipeline, a precise servo motor c (4-23) is arranged in the pipeline, an output shaft of the precise servo motor c (4-23) is connected with a connecting rod b (4-24), the end part of the connecting rod b (4-24) is connected with a choke plate b (4-25), the pipeline is also connected with an exhaust recycling pipeline (4-26), the exhaust recycling pipeline (4-26) is connected with one air inlet (4-4) of the exhaust recycling pipeline, and the other side of the exhaust fan (4-11) is connected with an exhaust pipeline (4-27); air quantity adjusting plates a (4-12) are arranged at air outlets of the air cavities (4-15), a plurality of air quantity adjusting plates a (4-12) are arranged and are uniform in the horizontal direction, and air nozzles (4-13) are arranged on each air quantity adjusting plate a (4-12);
the cooling unit (5) comprises an air cooling box cooling part and a cooling roller cooling part, the air cooling box cooling part comprises an air cooling box (5-9), a plurality of conveying rollers which are arranged in a Z shape continuously are arranged in the upper portion of the air cooling box (5-9) from top to bottom, the conveying rollers comprise guide rollers (5-3) which are arranged from top to bottom, the two guide rollers (5-3) are connected through tension rollers (5-2) which are installed obliquely, an air inlet fan (5-6) is fixed at the top of the air cooling box (5-9) through a support, an air volume adjusting plate (5-4) is arranged on the upper surface of the air cooling box (5-9), and an air outlet (5-5) of the air inlet fan (5-6) is over against the air volume adjusting plate (5-4); a first exhaust port (5-7) is formed in the bottom of the cold air box (5-9), and the first exhaust port (5-7) is connected with an exhaust fan (5-8) through a pipeline;
the cooling part of the cooling roller comprises cooling roller wall plates (5-11), the upper parts of the cooling roller wall plates (5-11) are fixedly provided with the cooling roller (5-1), guide rollers a (5-12) on the cooling roller wall plates (5-11) are arranged up and down, and the guide rollers a (5-12) are positioned at the lower parts of the cooling rollers (5-1); the cooling roller wall plates (5-11) and the cold air boxes (5-9) are arranged side by side, and the distance between the cooling roller wall plates and the cold air boxes is 300-500 mm.
2. The precision coater for rubber coated fabric according to claim 1, wherein an oven guide roller (4-14) is further arranged in the box body (4-18), and the oven guide roller (4-14) is horizontally arranged and is positioned at the lower part of the air volume adjusting plate a (4-12); one end of the oven guide roller (4-14) is provided with an electrostatic device (4-17), and the other end of the oven guide roller (4-14) is provided with a deviation correcting device (4-16).
3. The precision coating machine for the rubber coated fabric is characterized in that a concentration alarm device (4-1) and a pressure gauge (4-3) are arranged on the box body (4-18), and an explosion-proof opening (4-2) is formed in the center of the upper surface of the box body (4-18); an air quantity monitoring meter a (4-22) is arranged at the bottom of the air inlet pipeline (4-20); and an air quantity monitoring meter b (4-28) is arranged at the bottom of the exhaust pipeline (4-27).
4. The precision coater for rubber coated fabrics according to claim 3, characterized in that the concentration alarm device (4-1), the pressure gauge (4-3), the air quantity monitoring meter a (4-22), the precision servo motor b (4-8), the precision servo motor c (4-23) and the air quantity monitoring meter b (4-28) are electrically connected with the PLC controller.
5. The precision coater for rubber coated fabrics according to claim 1, characterized in that the cooling roll (5-1) comprises a cylindrical barrel (5-1-1) with a hollow interior, a central tube (5-1-3) is arranged at the center of the cylindrical barrel (5-1-1), one end of the central tube (5-1-3) extends out of the cylindrical barrel (5-1-1), the extending end is connected with a cooling water inlet tube (5-1-5), the other end of the central tube (5-1-3) is provided with an opening, flow guide tubes (5-1-4) are arranged on two sides of the inner wall of the cylindrical barrel (5-1-1), two ends of the flow guide tubes (5-1-4) and two ends of the cylindrical barrel (5-1-1) are provided with gaps, and one end of one of the flow guide pipes (5-1-4) is connected with a circulating water outlet pipe (5-1-6), the circulating water outlet pipe (5-1-6) and the cooling water inlet pipe (5-1-5) are positioned at the same side of the cylindrical barrel (5-1-1), and the flow guide plates (5-1-2) which are spirally arranged are arranged in the flow guide pipe (5-1-4).
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| CN107957136A (en) * | 2017-11-13 | 2018-04-24 | 苏州巨联环保科研有限公司 | Coating machine and its natural gas combustion device, drier |
| CN113275215A (en) * | 2021-06-25 | 2021-08-20 | 安徽隆润高分子材料有限公司 | Series rubber coating production control system and production method |
| CN114146863A (en) * | 2021-12-09 | 2022-03-08 | 芜湖荣基密封系统有限公司 | Glue impregnation equipment and glue impregnation method for sealing gasket |
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