CN212313079U

CN212313079U - Digital coil steel printing equipment

Info

Publication number: CN212313079U
Application number: CN202021651559.8U
Authority: CN
Inventors: 邹炎斌; 赵秀娟; 赵军
Original assignee: Hefei Hegang New Material Technology Co ltd; Qingdao Hegang New Material Technology Co ltd; Qingdao Hbis Composite New Material Technology Co ltd
Current assignee: Hefei Hegang New Material Technology Co ltd; Qingdao Hegang New Material Technology Co ltd; Qingdao Hbis Composite New Material Technology Co ltd
Priority date: 2020-08-10
Filing date: 2020-08-10
Publication date: 2021-01-08
Anticipated expiration: 2030-08-10

Abstract

The utility model relates to a digital coil steel printing device, which comprises an unreeling component, an oil removing component, a bluing component, a digital printing component, a primary drying component, a primary cooling component, a paint spraying component, a secondary drying component, a secondary cooling component and a reeling component which are arranged in sequence; the digital printing assembly comprises a bottom platform, wherein conveying rollers capable of conveying coil steel are arranged at two ends of the bottom platform, a printing frame is arranged on the upper side of the middle part of the bottom platform, and an ink-jet printer head is arranged on the printing frame; the subassembly that sprays paint includes the platform of spraying paint, and the both ends of the platform of spraying paint all rotate and are connected with the feed roll that can carry the coil steel, and the upside rigid coupling of the platform of spraying paint has the frame of spraying paint, and the last adjustable shelf that can follow vertical direction motion that is provided with of the frame of spraying paint is provided with the varnish spray gun that can spray the varnish down on the adjustable shelf. The utility model discloses have the effect that can realize the polychrome printing of quick continuous coil steel.

Description

Digital coil steel printing equipment

Technical Field

The utility model belongs to the technical field of the technique of coil steel printing and specifically relates to a digital coil steel printing apparatus and method thereof is related to.

Background

The metal color plate has high mechanical performance, high processability and metal texture, and is always a common shell material for various household electrical appliances. The metal color plate substrate is usually made of galvanized plate, stainless steel plate, aluminum plate, etc. Common metal plates are not corrosion resistant, and different appearances are usually formed on the surface of a substrate by using paint or a color film through different processes. The appearance effect of the metal color plate is enriched, and the corrosion resistance is improved. But different processes are superior and inferior. In the conventional process, in order to improve the production efficiency, the pattern is single, and complicated patterns cannot be printed. Finer patterns are achieved, typically at slower speeds.

The conventional process prints patterns by laminating a color film, screen printing, gravure printing, lithographic digital printing, and the like. The screen printing needs to be carried out according to patterns in advance, a screen is used as a plate base, a screen printing plate with the patterns is manufactured through photosensitive plate making, ink is poured into one end of the screen printing plate, a scraper plate is used for applying pressure to the ink of a screen printing plate, meanwhile, the scraper plate moves towards the other end of the screen printing plate at a constant speed, and the ink is extruded to the surface of a substrate from meshes of image-text parts by the scraper plate in moving to form the patterns. After the pattern is formed, baking and curing to form a product; gravure printing, namely, a plate engraving roller is needed, the prepared coating is placed in a material tray, and the coating is transferred to the surface of a metal plate through a steel roller and a rubber roller; lithography uses single-board digital printing. Placing the cut sizing material on a printing table, and enabling a printing head to jet ink back and forth to form a pattern; the metal plate is covered with the color film, and the film and the metal plate are attached together by high-temperature heating by using glue. In the glue coating process, VOC is released, and the working environment is severe. And PVC is usually added to the colored film. And toxic substances such as dioxin and the like are released in the PVC heating process.

However, the existing screen printing has single color, cannot draw fine patterns with complex colors, and has high cost for full-printing colors; the transfer printing needs to be provided with a printing roller, so that the cost is high; laser engraving cannot print colorful patterns; the gravure printing has high color cost, large VOC concentration in a printing chamber, high solvent recycling difficulty and high environmental protection pressure.

The flat-plate digital printing needs to prepare the sizing material with the required size and place the sizing material on the printing table-board, has no automatic feeding and discharging, has low speed and can not form flow line production. Severely restricting the amount of orders.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a not enough to prior art exists, the utility model aims at providing a digital coil steel printing apparatus has the polychrome printing that can realize quick continuous coil steel.

The above object of the present invention is achieved by the following technical solutions:

a digital coil steel printing device comprises an unreeling component, an oil removing component, a bluing component, a digital printing component, a primary drying component, a primary cooling component, a paint spraying component, a secondary drying component, a secondary cooling component and a reeling component which are arranged in sequence; the bluing assembly comprises a heating box and a cooling box arranged at the rear side of the heating box, and an air supply device capable of introducing inert gas is arranged at one side of the heating box; the digital printing assembly comprises a bottom table, wherein conveying rollers capable of conveying coil steel are arranged at two ends of the bottom table, a printing frame is arranged on the upper side of the middle part of the bottom table, and an ink-jet printer head is arranged on the printing frame; the primary drying assembly comprises a UV oven; the subassembly that sprays paint includes the platform of spraying paint, the both ends of the platform of spraying paint are all rotated and are connected with the feed roll that can carry the coil steel, the upside rigid coupling of the platform of spraying paint has the frame of spraying paint, it can follow the adjustable shelf of vertical direction motion to spray paint to be provided with on the frame, be provided with the varnish spray gun that can spray the varnish down on the adjustable shelf.

By adopting the technical scheme, in the working process, the coil steel to be processed is unreeled through the unreeling assembly, the coil steel is unfolded and conveyed, then the unreeled coil steel enters the oil removal assembly for surface oil removal, and then is conveyed to the heating box of the bluing assembly for heating, when the coil steel is conveyed into the heating box for heating, inert gas is conveyed through the gas supply device to protect the coil steel, after the coil steel is heated to bluing temperature, the coil steel is conveyed to the cooling box to be bluing by contacting with air, so that an oxide film is formed on the surface of the coil steel, the surface tension of the coil steel is further improved, then the bluing coil steel is cooled and then enters the bottom platform of the digital printing assembly again, the support conveying is carried out through the two conveying rollers, the printing surface is arranged upwards, when the coil steel passes through the printing frame, the ink-jet printer head carries out ink-jet printing on the surface of the coil steel, and then the coil steel is conveyed to, make printing ink solidification in a coil steel surface, then, the coil steel gets into cooling module once more and cools off, then, reentrant platform that sprays paint, drive varnish spray gun downstream adjusting position through the adjustable shelf, then through varnish spray gun work, can evenly spray varnish to a coil steel surface, then, the coil steel is delivered to secondary stoving subassembly and is made varnish solidification in a coil steel surface, finally, the coil steel is through the cooling of secondary cooling module, and accomplish the rolling through the rolling subassembly, realize the continuous polychrome printing of coil steel, the efficiency of work has been improved greatly.

The present invention may be further configured in a preferred embodiment as: the length direction of the movable frame is the same as that of the feeding roller; the movable frame is rotatably connected with a screw rod which is the same with the length direction of the movable frame, the movable frame is connected with a spray gun frame in a sliding mode along the length direction of the movable frame, the spray gun frame is connected to the screw rod in a threaded mode, and the varnish spray gun is arranged on the spray gun frame.

Through adopting above-mentioned technical scheme, the during operation, the screw rod rotates, can drive the spray gun frame and slide along the adjustable shelf to adjust the varnish spray gun, adapt to different operating modes, realize spraying paint.

The present invention may be further configured in a preferred embodiment as: the paint spraying frame is fixedly connected with a plurality of vertically arranged driving cylinders, and telescopic rods of the driving cylinders are arranged downwards and fixedly connected to the movable frame.

Through adopting above-mentioned technical scheme, during operation, the actuating cylinder drives the telescopic link and stretches out and draws back and can drive the adjustable shelf lift to adjust the height of varnish spray gun, adapt to different operating modes.

The present invention may be further configured in a preferred embodiment as: the last length direction perpendicular to of being provided with of carriage coils a supporting beam that hangs violently of steel direction of delivery, the inkjet printer head sets up in violently hanging a supporting beam, and the inkjet printer head can slide along violently hanging a supporting beam length direction, the vertical sliding of carriage is connected in the foundation bed, be provided with on the foundation bed and drive carriage vertical motion elevating system.

By adopting the technical scheme, when the device is used, the ink-jet printer head slides on the transverse suspension supporting beam, and the position of the ink-jet printer head on the upper side of the bottom table is adjusted, so that the device is suitable for coil steel with different widths; secondly, the elevating system who adopts can drive and print the frame and move along vertical direction to adjust the distance between printer head and the coil steel upper surface, satisfy the printing demand.

The present invention may be further configured in a preferred embodiment as: the upside of print frame sets up the ink memory, the ink memory is provided with the ink feed pipe with inkjet printer head, the ink memory is provided with the control valve one that can close the ink feed pipe, the upside of print frame is provided with the cleaning solution case, be provided with the liquid feed pipe between cleaning solution case and the inkjet printer head, be provided with the control valve two that can close the liquid feed pipe on the cleaning solution case.

Through adopting above-mentioned technical scheme, the during operation can send the ink to in the ink storage ware, then open control valve one, make the ink send to inkjet printer head to realize the inkjet printing, after finishing printing, when needing to the inside cleanness of inkjet printer head, directly close control valve one, then open control valve two, send the cleaning solution to opening inkjet printer head in the inkjet printing mechanism, it can to wash remaining printing ink in the inkjet printer head.

The present invention may be further configured in a preferred embodiment as: the middle part rigid coupling of printing the frame has the waste liquid groove of level setting, the both ends of horizontal suspension supporting beam all slide along the direction of transfer of conveying roller and connect in printing the frame, be provided with in the printing frame and drag the mechanism that can drag horizontal suspension supporting beam and remove to the inkjet printer head and be located the waste liquid groove upside.

Through adopting above-mentioned technical scheme, the during operation, when clean to ink jet printing mechanism, can directly drive horizontal suspension supporting beam through dragging the mechanism and remove, and then drive ink jet printing head and remove to waste liquid groove position to make ink jet printing head spun waste ink flow to the waste liquid inslot and realize the collection of waste liquid.

The present invention may be further configured in a preferred embodiment as: the deoiling subassembly is including removing the oil tank, the feed inlet has been seted up to the one end that removes the oil tank, it has the deoiling agent to remove the incasement packing, it is provided with a plurality of last switching-over rollers of arranging along coil steel direction of delivery in the oil tank to remove, the downside that the oil tank corresponds last switching-over roller all is provided with down the switching-over roller, go up the switching-over roller submergence under the deoiling agent, the discharge gate has been seted up to the other end that removes the oil tank.

Through adopting above-mentioned technical scheme, the during operation, the coil steel gets into from the feed inlet and removes in the oil tank, then, is snakelike conveying at the deoiling incasement according to the mode of walking around an upper reversing roller and a lower reversing roller in proper order, sends out to the discharge gate at last to guarantee that the coil steel can with the deoiling agent fully contact in the deoiling incasement, get rid of coil steel surface fluid, the subsequent processing of being convenient for.

The present invention may be further configured in a preferred embodiment as: a first feeding roller capable of conveying coil steel is arranged at one end, far away from the discharge port, of the drying box, and a second feeding roller capable of conveying coil steel is arranged at the outer end of the discharge port of the oil removing box; the upper side and the lower side of the blow-drying box are provided with hot air blowing pipes which are inclined towards the direction close to each other and tend to be far away from the direction of the discharge hole, and the lower side of the blow-drying box is inclined downwards from one side close to the discharge hole to one side far away from the discharge hole.

Through adopting above-mentioned technical scheme, after the coil steel conveys out from the degreaser, will get into through a feed roll switching-over and blow the dry box, then along with the transport of coil steel, convey to between two hot blast pipes, two hot blast pipes are bloied respectively to the upper and lower surface of coil steel, can blow the moisture on coil steel surface to the coil steel surface that makes through two hot blast pipes is dry, and from the water droplet that the coil steel surface drips to weathering the bottom of the case face also will directly drip back to the deoiling incasement through weathering the bottom of the case face landing.

To sum up, the utility model discloses a following at least one useful technological effect:

1. when the digital printing device works, the coil steel to be processed is unreeled through the unreeling component, the coil steel is unfolded and conveyed, then the flattened coil steel enters the oil removal component for surface oil removal, and then is conveyed to the heating box of the bluing component for heating, when the coil steel is conveyed into the heating box for heating, inert gas is conveyed through the gas supply device to protect the coil steel, after the coil steel is heated to bluing temperature, the coil steel is conveyed to the cooling box to be bluing through being contacted with air, so that an oxide film is formed on the surface of the coil steel, the surface tension of the coil steel is further improved, then the bluing coil steel is cooled and then enters the bottom platform of the digital printing component again, the digital printing component is supported and conveyed through the two conveying rollers, the printing surface is arranged to be upward, when the coil steel passes through the printing rack, the ink-jet printer head performs ink-jet printing on the surface of the coil steel, then the coil steel is conveyed to the UV oven of, then, the coil steel enters the primary cooling assembly again for cooling, then enters the paint spraying table again, drives the varnish spray gun to move downwards through the movable frame to adjust the position, then the varnish spray gun works to uniformly spray the varnish on the surface of the coil steel, then the coil steel is conveyed to the secondary drying assembly to solidify the varnish on the surface of the coil steel, and finally the coil steel is cooled through the secondary cooling assembly and is wound through the winding assembly, so that the continuous multicolor printing of the coil steel is realized, and the working efficiency is greatly improved;

2. when the device is used, the ink-jet printer head slides on the transverse suspension support beam, and the position of the ink-jet printer head on the upper side of the bottom table is adjusted, so that the device is suitable for coil steel with different widths; secondly, the adopted lifting mechanism can drive the printing frame to move along the vertical direction, so that the distance between the printer head and the upper surface of the coil steel is adjusted, and the printing requirement is met;

3. the during operation can send the ink to in the ink storage ware, then open control valve one, makes the ink send to the inkjet printer head to realize the inkjet printing, after finishing printing, when needing to the inside cleanness of inkjet printer head, directly close control valve one, then open control valve two, send the cleaning solution to and open the inkjet printer head in the inkjet printing mechanism, it can to wash remaining printing ink in the inkjet printer head.

Drawings

Fig. 1 is a schematic view of the overall structure of the embodiment of the present invention.

Fig. 2 is a schematic structural diagram of an oil removal assembly according to an embodiment of the present invention.

Fig. 3 is an enlarged view of a portion a in fig. 2.

Fig. 4 is a schematic structural diagram of a bluing assembly according to an embodiment of the present invention.

Fig. 5 is a schematic structural diagram of a digital printing assembly according to an embodiment of the present invention.

Fig. 6 is a structural schematic diagram of a primary drying assembly in an embodiment of the present invention.

Fig. 7 is a schematic structural diagram of a paint spraying assembly according to an embodiment of the present invention.

Fig. 8 is a schematic structural diagram of the secondary drying assembly in the embodiment of the present invention.

In the figure, 1, a unreeling rack; 11. unwinding rollers; 12. a winding frame; 121. a wind-up roll; 2. an oil removal assembly; 21. removing an oil tank; 211. a feed inlet; 212. a discharge port; 22. a material guide roller; 23. an upper reversing roller; 24. a slider; 241. a lower reversing roller; 25. a blow-drying box; 251. a first feeding roller; 252. a hot blast pipe; 26. a second feeding roller; 3. a bluing component; 31. a heating box; 311. a driving roller; 312. an air supply pipe; 32. a cooling tank; 321. a fixed roller; 322. a slider; 323. a gravity roller; 4. a digital printing component; 41. a base table; 411. a conveying roller; 412. a baffle ring; 413. tightly abutting against the bolt; 414. a lift cylinder; 42. a rubber roller; 43. a printing frame; 431. transversely suspending the support beam; 432. a dragging cylinder; 433. a lead screw; 44. an inkjet printer head; 45. an ink reservoir; 451. an ink feed tube; 46. a cleaning liquid tank; 461. a liquid delivery pipe; 47. a waste liquid tank; 5. a primary drying assembly; 51. UV oven; 52. a UV lamp; 6. a primary cooling assembly; 61. a first air cooling box; 7. a paint spraying assembly; 71. a paint spraying table; 711. a third feeding roller; 72. a paint spraying frame; 721. a drive cylinder; 73. a movable frame; 731. a screw; 74. a spray gun stand; 741. a varnish spray gun; 8. a secondary drying component; 81. an electric heating oven; 82. a conveying roller; 9. a secondary cooling assembly; 91. and a second air cooling box.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example (b): referring to fig. 1, for the utility model discloses a digital coil steel printing apparatus, including set gradually unreel the subassembly, deoiling subassembly 2, bluing subassembly 3, digital printing subassembly 4, a stoving subassembly 5, a cooling module 6, the subassembly 7 that sprays paint, secondary stoving subassembly 8, secondary cooling module 9 and rolling subassembly.

Referring to fig. 2, unreeling the subassembly and including unreeling frame 1, unreeling frame 1's upside is rotated and is connected with the level and sets up unreeling roller 11, unreels frame 1 and corresponds the one end rigid coupling of unreeling roller 11 and has can drive unreeling roller 11 pivoted servo motor. During operation, the coil steel to be processed is arranged on the unwinding roller 11 of the unwinding frame 1, and then the unwinding roller 11 is driven to rotate through the servo motor, so that unwinding of the coil steel can be realized.

The deoiling subassembly 2 is including removing oil tank 21, and the feed inlet 211 has been seted up to the one end that is close to the rolling frame 12 that removes oil tank 21, and its other end has seted up discharge gate 212, removes the feed inlet 211 outside of oil tank 21 and rotates and be connected with two guide rolls 22, and the axis direction of two guide rolls 22 is the same with the axis direction of unreeling roller 11, and two guide rolls 22 are arranged along vertical direction, leaves the guide clearance between two guide rolls 22. Remove the oil tank 21 internal rotation and be connected with many axial directions and the same last switching-over roller 23 of guide roller 22 axial direction, many last switching-over rollers 23 are arranged along the length direction who removes oil tank 21, it is connected with a plurality of sliders 24 to remove the equal vertical slip in both sides in oil tank 21, it is connected with down switching-over roller 241 to correspond to rotate between the slider 24, the axial direction of lower switching-over roller 241 is the same with the axial direction of last switching-over roller 23, lower switching-over roller 241 is located the below of last switching-over roller 23, it is filled with except that the oil tank 21, except that the oil agent submergence in last switching-over roller 23 top and be less than feed inlet 211 and. During operation, the coil steel gets into from feed inlet 211 except that in the oil tank 21, then, is snakelike conveying in deoiling case 21 according to the mode of walking around an upper reversing roller 23 and a lower reversing roller 241 in proper order, sends out to discharge gate 212 at last to guarantee that the coil steel can with remove the finish and fully contact in deoiling case 21, get rid of coil steel surface fluid, the subsequent processing of being convenient for. In addition, through lower reversing roller 241, the switching-over of realization coil of steel that on the one hand can be convenient is carried, makes the abundant contact with the degreaser in deoiling case 21 of coil of steel, and on the other hand utilizes the self gravity of lower reversing roller 241, can realize the automatic adjustment of coil of steel traction force, guarantees that the coil of steel is in the state of flare-outing all the time.

Referring to fig. 2 and 3, a drying box 25 is fixedly connected to one end, close to the discharge port 212, of the oil removing box 21, one end, far away from the discharge port 212, of the drying box 25 is rotatably connected with a first feeding roller 251, the axial direction of the first feeding roller 251 is the same as that of the upper reversing roller 23, the outer end, far away from the discharge port 212, of the oil removing box 21 is rotatably connected with a second feeding roller 26, the axial direction of the second feeding roller 26 is the same as that of the first feeding roller 251, hot blowing pipes 252 are fixedly connected to the upper side and the lower side of the drying box 25, the length direction of the hot blowing pipes 252 is the same as that of the second feeding roller 26, and blowing ports are formed in one side, close to each other, of the hot blowing pipes 252 can face one side, close to each. The outer side of the blow-drying box 25 is provided with a hot air conveying device communicated with hot air, and the lower side of the blow-drying box 25 is obliquely and downwards arranged from one side close to the discharge port 212 to one side far away from the discharge port 212. After the coil steel is conveyed out of the oil removing agent, the coil steel enters the blow-drying box 25 through the first feeding roller 251 in a reversing mode, then is conveyed between the two hot air blowing pipes 252 along with the conveying of the coil steel, the two hot air blowing pipes 252 respectively blow air to the upper surface and the lower surface of the coil steel, and the moisture on the surface of the coil steel can be blown, so that the surface of the coil steel passing through the two hot air blowing pipes 252 is dried, and water drops dropping from the surface of the coil steel to the bottom surface of the blow-drying box 25 directly drop back into the oil removing box 21 through the bottom surface of the blow-drying box 25 in a sliding mode.

Referring to fig. 4, the bluing module 3 includes a heating box 31 and a cooling box 32 fixed to the rear side of the heating box 31, a plurality of driving rollers 311 are rotatably connected in the heating box 31, the axial direction of the driving rollers 311 is the same as the axial direction of the first feeding roller 251, a heating mechanism is provided in the heating box 31, the heating module used in this embodiment is an electromagnetic induction heating coil, an air feeding pipe 312 (see fig. 1) communicating with the heating box 31 is fixed to one side of the heating box 31, and an air feeding device capable of feeding inert gas into the air feeding pipe 312 is fixed to the other end of the air feeding pipe 312. The upper side in the cooling box 32 is rotatably connected with a plurality of fixed rollers 321 with the same axial direction as the driving roller 311, the two sides of the cooling box 32 are vertically connected with sliding blocks 322 in a sliding manner, and gravity rollers 323 with the same axial direction as the fixed rollers 321 are rotatably connected between the corresponding sliding blocks 322 on the two sides. The coil steel gets into deoiling subassembly 2 and carries out the surface deoiling, convey again to the heating cabinet 31 of bluing subassembly 3 and heat through electromagnetic induction heating coil, when the coil steel is delivered to heating cabinet 31 internal heating, send into inert gas through air supply device and protect the coil steel, treat that the coil steel heats to bluing temperature after, carry to cooler bin 32 and walk around fixed roll 321 and gravity roller 323 in proper order and bluing with the air contact, make the surface formation oxide film of coil steel, and then improve the surface tension of coil steel, and can play the requirement of drawing the follow-up printing of being convenient for of keeping in to the coil steel.

Referring to fig. 5, the digital printing assembly 4 includes a base 41, the two ends of the base 41 are rotatably connected with conveying rollers 411, the circumferential surfaces of the two conveying rollers 411 are respectively sleeved with a retaining ring 412 capable of sliding along the axial direction of the conveying rollers 411, and the circumferential surfaces of the retaining ring 412 are respectively connected with a tightening bolt 413 capable of tightening the conveying rollers 411 in a threaded manner. A rubber roller 42 is rotatably connected to an end of the base 41 close to the cooling tank 32 above the conveying roller 411, and a servo motor capable of driving the rubber roller 42 to rotate is fixedly connected to an end of the base 41 corresponding to the rubber roller 42. During operation, coil steel sends the bottom platform 41 upside through a conveying roller 411, then sends out through another conveying roller 411, and through the adoption set up the feeding that can assist coil steel in the rubber roll 42 of bottom platform 41 feed end, guarantees coil steel's input speed.

The upper side of the middle part of the bottom table 41 is provided with a printing frame 43, the printing frame 43 is vertically connected to the bottom table 41 in a sliding manner, and the bottom table 41 is provided with a lifting mechanism capable of driving the printing frame 43 to vertically move. The lifting mechanism adopted in this embodiment is a lifting cylinder 414, a transverse suspension support beam 431 is connected to the printing frame 43 in a sliding manner along the length direction of the base table 41, a dragging mechanism is fixedly connected to the printing frame 43, in this embodiment, the dragging mechanism is a dragging cylinder 432, a telescopic rod of the dragging cylinder 432 is fixedly connected to the transverse suspension support beam 431 and can drag the transverse suspension support beam 431 to slide, the length direction of the transverse suspension support beam 431 is the same as the axis direction of the conveying roller 411, an inkjet printer head 44 is connected to one side of the transverse suspension support beam 431 in a sliding manner along the length direction, the inkjet printer head 44 is arranged downwards, a lead screw 433 which is the same as the length direction of the transverse suspension support beam 431 is rotatably connected to the transverse suspension support beam 431, the inkjet printer head 44 is in threaded connection with the lead screw 433, and a servo motor. When passing through the printing frame 43, the inkjet printer head 44 slides on the transversely suspended support beam 431, the position of the inkjet printer head 44 on the upper side of the base table 41 is adjusted, the lifting cylinder 414 drives the printing frame 43 to move along the vertical direction, so that the distance between the printer head and the upper surface of the coil steel is adjusted, and inkjet printing can be performed on the surface of the coil steel through the inkjet printer head 44.

An ink reservoir 45 is provided on the upper side of the printing frame 43, an ink feed tube 451 is fixed to the ink reservoir 45 and the inkjet printer head 44, a first control valve capable of closing the ink feed tube 451 is provided on the ink reservoir 45, a cleaning liquid tank 46 is fixed to the upper side of the printing frame 43, a liquid feed tube 461 is provided between the cleaning liquid tank 46 and the inkjet printer head 44, and a second control valve capable of closing the liquid feed tube 461 is provided on the cleaning liquid tank 46. The middle part of the printing frame 43 is fixedly connected with a horizontally arranged waste liquid groove 47, the length direction of the waste liquid groove 47 is the same as that of the cross suspension supporting beam 431, and both sides of the waste liquid groove 47 tend to be bent inwards in the approaching direction. During operation, can send the ink to in the ink storage 45, then open control valve one, make the ink send to inkjet printer head 44, thereby realize the inkjet printing, after finishing printing, when needing to the inside cleanness of inkjet printer head 44, directly close control valve one, drive horizontal suspension supporting beam 431 through dragging jar 432 and remove, drive inkjet printer head 44 and remove to survey on waste liquid groove 47 position, then open control valve two, send the cleaning solution to and open inkjet printer head 44 in the inkjet printing mechanism, wash remaining printing ink in inkjet printer head 44, thereby make the collection of waste liquid of inkjet printer head 44 spun waste ink flow to waste liquid groove 47 in realize.

Referring to fig. 6, primary drying assembly 5 includes UV oven 51, and the rigid coupling has a plurality of UV lamps 52 in UV oven 51, and primary cooling assembly 6 includes air-cooled case 61, and the rigid coupling has a plurality of fans in air-cooled case 61, and the coil steel will directly send to UV oven 51 after printing, makes printing ink solidification in coil steel surface, then, coil steel reentrant air-cooled case 61, accomplishes the cooling.

Referring to fig. 7, the paint spraying assembly 7 includes a paint spraying table 71, two ends of the paint spraying table 71 are rotatably connected with a third feeding roller 711, the axial direction of the third feeding roller 711 is the same as the axial direction of the conveying roller 411, a paint spraying frame 72 is fixedly connected to the upper side of the paint spraying table 71, a plurality of driving cylinders 721 are vertically and fixedly connected to the paint spraying frame 72, telescopic rods of the driving cylinders 721 extend to the lower side of the paint spraying frame 71 and are fixedly connected with a movable frame 73, the length direction of the movable frame 73 is the same as the length direction of the third feeding roller 711, a gun frame 74 is slidably connected to the lower side of the movable frame 73 along the length direction of the movable frame 73, a screw 731, the length direction of which is the same as the length direction of the movable frame 73, the gun frame 74 is rotatably connected to the screw 731, a servo motor is fixedly connected to one side of the movable frame 73, an output shaft of the servo motor is fixedly connected. After the coil steel enters the paint spraying table 71, the driving cylinder 721 drives the movable frame 73 to descend, the servo motor drives the screw 731 to rotate, the gun frame 74 is driven to slide along the movable frame 73, the position of the varnish spray gun 741 is adjusted, and then the varnish spray gun 741 is opened, so that the paint spraying on the surface of the coil steel can be realized.

Referring to fig. 8, the secondary drying assembly 8 includes an electric heating oven 81, a plurality of conveying rollers 82 having the same axial direction as the painting roller 73 are rotatably connected in the electric heating oven 81, and a plurality of electric heating tubes are fixedly connected in the electric heating oven 81. Secondary cooling unit 9 includes two 91 of forced air cooling casees, and the rigid coupling has a plurality of fans in two 91 of forced air cooling casees, and rolling subassembly includes rolling frame 12, and the last rotation of rolling frame 12 is connected with wind-up roll 121, and one side rigid coupling of rolling frame 12 has can drive wind-up roll 121 pivoted servo motor. After the coil steel is sprayed with varnish, the coil steel is conveyed to the electric heating oven 81 to be solidified on the surface of the coil steel, then the coil steel is cooled and conveyed out through the second air cooling box 91, and finally the winding roller 121 is driven to rotate through the servo motor to drive the coil steel to be wound and complete the collection of the printed coil steel.

The implementation principle of the embodiment is as follows: during operation, the coil steel gets into from feed inlet 211 except that in the oil tank 21, then, is snakelike conveying in deoiling case 21 according to the mode of walking around an upper reversing roller 23 and a lower reversing roller 241 in proper order, sends out to discharge gate 212 at last to guarantee that the coil steel can with remove the finish and fully contact in deoiling case 21, get rid of coil steel surface fluid, the subsequent processing of being convenient for. In addition, through lower reversing roller 241, on the one hand can be convenient realize the switching-over of coil steel and carry, make the coil steel abundant in deoiling case 21 with the contact of deoiling agent, on the other hand, utilize the self gravity of lower reversing roller 241, can realize the automatic adjustment of switching-over area traction force, guarantee that coil steel is in the state of flare-outing all the time.

The coil steel gets into deoiling subassembly 2 and carries out the surface deoiling, convey again to the heating cabinet 31 of bluing subassembly 3 and heat through electromagnetic induction heating coil, when the coil steel is delivered to heating cabinet 31 internal heating, send into inert gas through air supply device and protect the coil steel, treat that the coil steel heats to bluing temperature after, carry to cooler bin 32 and walk around fixed roll 321 and gravity roller 323 in proper order and bluing with the air contact, make the surface formation oxide film of coil steel, and then improve the surface tension of coil steel, and can play the requirement of drawing the follow-up printing of being convenient for of keeping in to the coil steel.

Then, the coil steel is sent to the upper side of the base 41 through a conveying roller 411, and then sent out through another conveying roller 411, and the feeding of the coil steel can be assisted by adopting a rubber roller 42 arranged at the feeding end of the base 41, so that the feeding speed of the coil steel is ensured.

When passing through the printing frame 43, the inkjet printer head 44 slides on the transversely suspended support beam 431, the position of the inkjet printer head 44 on the upper side of the base table 41 is adjusted, the lifting cylinder 414 drives the printing frame 43 to move along the vertical direction, so that the distance between the printer head and the upper surface of the coil steel is adjusted, and inkjet printing can be performed on the surface of the coil steel through the inkjet printer head 44.

After printing, the coil steel is directly sent to a UV oven 51, so that the printing ink is solidified on the surface of the coil steel, and then the coil steel enters a first air cooling box 61 to finish cooling. Then, after the coil steel enters the paint spraying table 71, the driving cylinder 721 drives the movable frame 73 to descend, the servo motor drives the screw 731 to rotate, the gun frame 74 is driven to slide along the movable frame 73, the position of the varnish spray gun 741 is adjusted, and then the varnish spray gun 741 is opened, so that the paint spraying on the surface of the coil steel can be realized.

After the coil steel is sprayed with varnish, the coil steel is conveyed to the electric heating oven 81 to be solidified on the surface of the coil steel, then the coil steel is cooled and conveyed out through the second air cooling box 91, and finally the winding roller 121 is driven to rotate through the servo motor to drive the coil steel to be wound and complete the collection of the printed coil steel.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a digital coil steel printing apparatus which characterized in that: the device comprises an unreeling component, an oil removing component (2), a bluing component (3), a digital printing component (4), a primary drying component (5), a primary cooling component (6), a paint spraying component (7), a secondary drying component (8), a secondary cooling component (9) and a reeling component which are sequentially arranged; the bluing assembly (3) comprises a heating box (31) and a cooling box (32) arranged at the rear side of the heating box (31), and one side of the heating box (31) is provided with an air supply device capable of introducing inert gas; the digital printing assembly (4) comprises a bottom table (41), conveying rollers (411) capable of conveying coil steel are arranged at two ends of the bottom table (41), a printing frame (43) is arranged on the upper side of the middle of the bottom table (41), and an ink-jet printer head (44) is arranged on the printing frame (43); the primary drying assembly (5) comprises a UV oven (51); the utility model discloses a paint spraying assembly (7) is including platform (71) of spraying paint, the both ends of platform (71) of spraying paint all rotate and are connected with feed roll (711) that can carry the coil steel, the upside rigid coupling of platform (71) of spraying paint has frame (72) of spraying paint, be provided with adjustable shelf (73) that can follow vertical direction motion on the frame (72) of spraying paint, be provided with varnish spray gun (741) that can spray the varnish down on adjustable shelf (73).

2. The digital coil steel printing device according to claim 1, wherein: the length direction of the movable frame (73) is the same as that of the feeding roller (711); the movable frame (73) is connected with a screw rod (731) which is the same as the movable frame (73) in the length direction in a rotating mode, the movable frame (73) is connected with a spray gun rack (74) in a sliding mode along the length direction of the movable frame (73), the spray gun rack (74) is connected to the screw rod (731) in a threaded mode, and the varnish spray gun (741) is arranged on the spray gun rack (74).

3. The digital coil steel printing device according to claim 2, wherein: the paint spraying device is characterized in that a plurality of vertically arranged driving cylinders (721) are fixedly connected to the paint spraying frame (72), and telescopic rods of the driving cylinders (721) are arranged downwards and fixedly connected to the movable frame (73).

4. The digital coil steel printing device according to claim 1, wherein: be provided with length direction perpendicular to coil steel direction of delivery's horizontal supporting beam (431) that hangs on print frame (43), inkjet printer head (44) set up in horizontal supporting beam (431) that hangs, and inkjet printer head (44) can be followed horizontal supporting beam (431) length direction and slided, print frame (43) vertical sliding connects in bed (41), be provided with on bed (41) and drive print frame (43) vertical motion elevating system.

5. The digital coil steel printing device according to claim 4, wherein: the upper side of printing frame (43) sets up ink storage ware (45), ink storage ware (45) and inkjet printer head (44) are provided with ink feed pipe (451), ink storage ware (45) are provided with the control valve one that can close ink feed pipe (451), the upper side of printing frame (43) is provided with cleaning solution case (46), be provided with between cleaning solution case (46) and inkjet printer head (44) and send liquid pipe (461), be provided with the control valve two that can close liquid feed pipe (461) on cleaning solution case (46).

6. The digital coil steel printing device according to claim 5, wherein: the middle part rigid coupling of printing frame (43) has waste liquid groove (47) that the level set up, the both ends of horizontal suspension supporting beam (431) all slide along the direction of transfer of conveying roller (411) and connect in printing frame (43), be provided with in printing frame (43) and can drag horizontal suspension supporting beam (431) and move to inkjet printer head (44) and be located the drag mechanism of waste liquid groove (47) upside.

7. The digital coil steel printing device according to claim 6, wherein: deoiling subassembly (2) is including removing oil tank (21), feed inlet (211) have been seted up to the one end that removes oil tank (21), it is filled with except that the oil tank (21) is filled, it is provided with a plurality of last switching-over rollers (23) of arranging along a roll steel direction of delivery to remove to be provided with in oil tank (21), the downside that removes oil tank (21) and corresponds switching-over roller (23) all is provided with down switching-over roller (241), go up switching-over roller (23) submergence under removing the oil agent, discharge gate (212) have been seted up to the other end that removes oil tank (21).

8. The digital coil steel printing device according to claim 7, wherein: a first blowing-drying box (25) is fixedly connected to one end, close to the discharge hole (212), in the oil removing box (21), a first feeding roller (251) capable of conveying coil steel is arranged at one end, far away from the discharge hole (212), of the drying box (25), and a second feeding roller (26) capable of conveying coil steel is arranged at the outer end of the discharge hole (212) of the oil removing box (21); the upper side and the lower side of the blow-drying box (25) are respectively provided with a hot air blowing pipe (252) which faces the direction close to each other and tends to be far away from the direction of the discharge hole (212) and is obliquely arranged downwards, and the lower side of the blow-drying box (25) is obliquely arranged from one side close to the discharge hole (212) to one side far away from the discharge hole (212).