CN113561627B - Printing machine capable of inhibiting ink flying phenomenon - Google Patents
Printing machine capable of inhibiting ink flying phenomenon Download PDFInfo
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- CN113561627B CN113561627B CN202110845803.7A CN202110845803A CN113561627B CN 113561627 B CN113561627 B CN 113561627B CN 202110845803 A CN202110845803 A CN 202110845803A CN 113561627 B CN113561627 B CN 113561627B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F9/00—Rotary intaglio printing presses
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F31/00—Inking arrangements or devices
- B41F31/02—Ducts, containers, supply or metering devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F31/00—Inking arrangements or devices
- B41F31/20—Ink-removing or collecting devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
- B41P2231/00—Inking devices; Recovering printing ink
- B41P2231/20—Recovering printing ink
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- Mechanical Engineering (AREA)
- Inking, Control Or Cleaning Of Printing Machines (AREA)
Abstract
The present invention relates to a printing press, and more particularly, to a printing press having a function of suppressing ink flying. A printing machine capable of inhibiting ink flying phenomenon comprises a gravure printing roller, an impression roller and an ink box, wherein an electric field is applied in the printing environment of the printing machine, so that charged ink flying in the printing environment is intensively collected and removed under the action of the electric field. The electric field is utilized to remove most of flying ink under the action of the flying ink with charges, the electric field is invisible, the problem of shielding cannot be caused when workers clean the gravure printing roller, the gravure printing roller is very convenient to clean, and the quality of the printing ink cannot be influenced.
Description
Technical Field
The present invention relates to a printing press, and more particularly, to a printing press having a function of suppressing ink flying.
Background
In the ink transfer, the fibrous material is cut or stretched at two or more points on two rollers in contact with each other to form a spherical shape by surface tension. At this time, the electric double layer existing at the interface between the fiber and the segment is broken, and a part of the electric double layer remains in the ink, and the other part of the electric double layer escapes to the atmosphere with opposite charges. When the fibrous material shortens, the electric charge remaining in the ink is gradually accumulated on the surface of the ink roller and the paper. The fragments, because of the same charge as the ink, are repelled into the air as they approach the roller or sheet, forming ink droplets.
The existing treatment of the flying ink is generally in two modes, the first mode is to arrange a baffle plate around a gravure printing roller and intercept the flying ink by utilizing the baffle plate, but the interception is not thorough enough, and the baffle plate needs to be disassembled and assembled when the gravure printing roller is cleaned, so that the trouble of cleaning the gravure printing roller is caused; the second method is to add electrolyte into the ink, so that the flying ink contains the electrolyte to conduct away charges in the flying ink, and further the flying ink is prevented from being repelled in the air, but the addition of the electrolyte can cause the quality of the ink to be reduced and influence the printing quality.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a printing machine capable of inhibiting ink flying phenomenon, which utilizes an electric field to intensively collect and remove charged ink flying in a printing environment under the action of the electric field.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a printing machine capable of inhibiting ink flying phenomenon, comprising:
a gravure roll;
the paper to be printed passes through the space between the gravure printing roller and the embossing roller;
the ink box is arranged beside the gravure printing roller and contains printing ink, and one side of the gravure printing roller is immersed in the printing ink of the ink box;
applying an electric field in the printing environment of the printer, so that the charged flying ink in the printing environment is intensively collected and removed under the action of the electric field.
As a further improvement of the technical proposal, the device also comprises a first electrode, a second electrode and an adsorption mechanism, the first electrode comprises a first electrode block in the middle and second electrode blocks positioned at two sides of the first electrode block, the second electrode blocks are at least two and are respectively arranged at two sides of the first electrode block in a foldable manner, the first electrode block is arranged at the lower side of the ink box, the second electrode comprises a third electrode block in the middle and fourth electrode blocks positioned at two sides of the third electrode block, the number of the fourth electrode blocks is at least two and the fourth electrode blocks are respectively arranged at two sides of the third electrode block in a foldable way, intervals for the paper to pass through are arranged between the fourth electrode block and the third electrode block, the third electrode block is positioned above the embossing roller, the first electrode is a positive electrode, and the second electrode is a negative electrode;
the adsorption mechanisms are arranged on two sides of the ink box in a foldable mode, the adsorption mechanisms are located between the first electrode and the second electrode, the edges, close to the ink box, of the adsorption mechanisms are in contact with the ink box, the edges, close to the ink box, of the adsorption mechanisms are lower than or equal to the top end of the ink box, and the adsorption mechanisms are made of insulating adsorption materials;
the ink box is made of insulating materials.
As a further improvement of the above technical solution, the printer further comprises a first hinge portion, a fixed block and a second hinge portion, wherein the first hinge portion is arranged on both sides of the first electrode block and connected with the second electrode block on both sides of the first electrode block through the first hinge portion on both sides of the first electrode block, the second hinge portion is arranged on the fourth electrode block close to the third electrode block, the second hinge portion is arranged on the frame of the printer, and the third electrode block is fixed on the frame of the printer through the fixed block.
As the further improvement of the technical scheme, the ink charging device further comprises an ink charge processing mechanism, a liquid outlet pipe, a first hydraulic pump, a liquid inlet pipe and a second hydraulic pump, wherein the ink charge processing mechanism is a closed container, the charge of ink can be controlled and is located in a threshold value P, one side of the ink charge processing mechanism is provided with the liquid outlet pipe, the other end of the liquid outlet pipe is communicated with the ink box, the liquid outlet pipe can enable the ink processed by the ink charge processing mechanism to be introduced into the ink box under the action of the first hydraulic pump, the other side of the ink charge processing mechanism is provided with the liquid inlet pipe, the other end of the liquid inlet pipe is communicated with the ink box, and the liquid inlet pipe can enable the used ink in the ink box to be introduced into the ink charge processing mechanism under the second hydraulic pump for processing.
As a further improvement of the above technical solution, the ink charge processing mechanism includes:
an ink tank;
the partition plates are uniformly arranged in the ink box at intervals along the direction from the liquid outlet pipe to the liquid inlet pipe, the space in the ink box is sequentially divided into a plurality of identical compartments along the direction from the liquid outlet pipe to the liquid inlet pipe by the partition plates, the liquid outlet pipe is communicated with the leftmost compartment, the liquid inlet pipe is communicated with the rightmost compartment, and the first hydraulic pump is positioned in the leftmost compartment;
the spray heads are metal spray heads, each partition plate is penetrated by at least one spray head, the heads of the spray heads face the liquid outlet pipe, and the opening degree of the spray heads is adjustable;
the tail parts of the spray heads are all communicated with the guide pipes;
a third hydraulic pump, each of said compartments having said third hydraulic pump disposed therein, each of said spray heads being connected to said third hydraulic pump in said compartment at the rear thereof through said conduit connected thereto, the power of said third hydraulic pump being adjustable;
the metal bottom plate, the rightmost compartment is provided with the metal bottom plate, the metal bottom plate passes through wire ground connection.
As a further improvement of the above technical solution, the partition structure further comprises a net-shaped cubic metal frame, and the net-shaped cubic metal frame is located on the metal bottom plate and fills the space in the rightmost compartment.
As a further improvement of the above technical solution, the ink cartridge further comprises a first liquid level sensor, a second liquid level sensor, a liquid feeding pipe and a fourth hydraulic pump, wherein the liquid feeding pipe is arranged outside the ink tank and communicated with the rightmost compartment, the fourth hydraulic pump is arranged on the liquid feeding pipe, the rightmost compartment is internally provided with the first liquid level sensor and is used for detecting the height of an ink liquid level B in the ink tank, and the second liquid level sensor is arranged on the side wall of the ink cartridge and is used for detecting the height of an ink liquid level a in the ink cartridge;
the first hydraulic pump and the second hydraulic pump are both normally open pumps;
when the height of the ink liquid level A is lower than a set value N, the power of the first hydraulic pump is larger than that of the second hydraulic pump, so that the height of the ink liquid level A is within a range of the set value N;
when the height of the ink liquid level A is higher than a set value N, the power of the first hydraulic pump is smaller than that of the second hydraulic pump, so that the height of the ink liquid level A is within a range of the set value N;
when the height of the ink liquid level B is lower than a set value N, starting the third hydraulic pump, and adding new ink into the rightmost compartment through the liquid adding pipe;
the first hydraulic pump, the second hydraulic pump, the third hydraulic pump and the fourth hydraulic pump are controlled to enable the ink in the printing machine to be always maintained in a stable circulating flow state.
As a further improvement of the above technical means, any one of the adsorption mechanisms includes:
the liquid storage box is arranged on one side of the ink box and is hinged with the side edge of the ink box, the upper end of the liquid storage box is provided with an opening, and the liquid storage box is made of an insulating material;
the sliding plate is movably arranged between two side walls in the liquid storage box;
the liquid absorbing block is arranged between one side of the sliding plate and the side wall in the liquid storage box;
a pull motor located outside the electric field;
the pull rope is arranged between the pull motor and the sliding plate, and the pull motor pulls the sliding plate to move through the pull rope;
as a further improvement of the technical scheme, the adsorption mechanism further comprises a guide pulley, the guide pulley is arranged on the outer wall of the liquid storage box, and the pull rope is connected with the pulling motor by bypassing the guide pulley;
as a further improvement of the technical scheme, the pull rope and the liquid absorption block are both made of pure cotton, the pull rope is a pure cotton pull rope, and the liquid absorption block is a pure cotton block.
As a further improvement of the technical scheme, the ink box further comprises a first connecting pipeline, a second connecting pipeline, a backflow port and a backflow control valve, wherein the rightmost side of the partition outer wall is provided with the backflow port and communicated with the backflow port, the backflow control valve is arranged on the backflow port and used for controlling the opening and closing of the backflow port, one side of the ink box is provided with a liquid storage box, the liquid storage box is communicated with the backflow port through the first connecting pipeline, and the other side of the ink box is provided with a liquid storage box, the liquid storage box is communicated with the backflow port through the second connecting pipeline.
As a further improvement of the above technical scheme, the ink box the partition plate the drain pipe the feed liquor pipe the liquid feeding pipe with the backward flow mouth the first connecting pipeline with the second connecting pipeline are made of insulating materials.
The invention has the beneficial effects that:
1. the electric field is utilized to remove most of flying ink under the action of the flying ink with charges, the electric field is invisible, the problem of shielding cannot be caused when workers clean the gravure printing roller, the gravure printing roller is very convenient to clean, and the quality of the printing ink cannot be influenced.
2. The ink used by the gravure roller and the impression roller flows into the ink charge processing mechanism through the liquid inlet pipe, the ink charge processing mechanism enables the ink flowing in through the liquid inlet pipe to be processed with the charge amount, the ink is enabled to be within the threshold value P, and then the ink flows back to the ink box through the liquid outlet pipe again, so that a dynamic balance of ink flow circulation and the ink charge amount is formed, the ink flow circulation can prevent the ink from being bonded under a static state, the dynamic balance of the ink charge amount enables the ink charge amount to be within the safety range threshold value P, and the use safety performance of the ink is improved.
Drawings
Fig. 1 is a schematic structural view of the printing press according to the embodiment.
Fig. 2 is a schematic structural diagram of the electrode block of the present embodiment.
FIG. 3 is a schematic structural diagram of the ink charge handling mechanism according to this embodiment.
Fig. 4 is a schematic structural diagram of the adsorption mechanism of the present embodiment.
Fig. 5 is a sectional view of the adsorption mechanism of the present embodiment.
Fig. 6 is an exploded view of the adsorption mechanism of the present embodiment.
Wherein the figures include the following reference numerals: 1. gravure roll, 2, platen roll, 3, paper, 4, ink cartridge, 5, first electrode, 51, first electrode block, 52, second electrode block, 5201, first hinge part, 6, second electrode, 61, third electrode block, 6101, fixed block, 62, fourth electrode block, 6201, second hinge part, 64, insulating sleeve, 7, ink tank, 8, partition, 9, liquid outlet pipe, 10, first hydraulic pump, 11, liquid inlet pipe, 12, second hydraulic pump, 13, spray head, 14, conduit, 15, third hydraulic pump, 16, first liquid level sensor, 17, second liquid level sensor, 18, liquid feeding pipe, 19, fourth hydraulic pump, 20, metal base plate, 21, mesh cubic metal frame, 22, adsorption mechanism, 2201, liquid storage cartridge, 2202, slide plate, 2203, liquid suction block, 2205, guide pulley, 2206, pure cotton pull rope, 23, 2306, return port, 1, return control valve, 24. a first connecting pipe 25, a second connecting pipe.
Detailed Description
The present invention now will be described more fully hereinafter with reference to the accompanying drawings, in which presently preferred embodiments of the invention are shown. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided for completeness and fully convey the scope of the invention to the skilled person.
As shown in fig. 1 to 6, a printing machine with suppressed ink flying phenomenon includes a gravure roll 1, a platen roll 2, and an ink cartridge 4, a sheet 3 to be printed passes between the gravure roll 1 and the platen roll 2; the ink box 4 is arranged beside the gravure printing roller 1, the ink box 4 contains printing ink, one side of the gravure printing roller 1 is soaked in the printing ink of the ink box 4, and an electric field is applied in the printing environment of the printing machine, so that the charged flying ink in the printing environment is intensively collected and removed under the action of the electric field.
During the operation of the printing machine, flying ink is formed, and is repelled into the air when approaching the ink roller or paper 3 due to the same electric charge as the ink, at this time, an electric field is applied in the printing environment, most of the flying ink is deflected under the action of the electric field and is deposited into the ink box 4, and the flying ink repelled into the air is removed.
In the embodiment, most of flying ink is removed by utilizing the effect of the electric field on the flying ink with charges, the electric field is invisible, the problem of shielding cannot be caused when workers clean the gravure printing roller 1, and the gravure printing roller 1 is very convenient to clean.
In the embodiment, the effect of the electric field on the charged flying ink is used for removing most of the flying ink, and the quality of the ink is not affected.
Further, the ink cartridge comprises a first electrode 5, a second electrode 6 and an adsorption mechanism 22, wherein the first electrode 5 comprises a middle first electrode block 51 and second electrode blocks 52 positioned on two sides of the first electrode block 51, the second electrode blocks 52 are at least two and are respectively arranged on two sides of the first electrode block 51 in a foldable manner, the first electrode block 51 is arranged on the lower side of the ink cartridge 4, the second electrode 6 comprises a middle third electrode block 61 and fourth electrode blocks 62 positioned on two sides of the third electrode block 61, the fourth electrode blocks 62 are at least two and are respectively arranged on two sides of the third electrode block 61 in a foldable manner, a gap for paper 3 to pass through is arranged between each fourth electrode block 62 and the third electrode block 61, the third electrode block 61 is positioned above the embossing roller 2, the first electrode 5 is a positive electrode, and the second electrode 6 is a negative electrode; the adsorption mechanisms 22 are arranged on two sides of the ink box 4 in a foldable mode, the adsorption mechanisms 22 are located between the first electrode 5 and the second electrode 6, the edges, close to the ink box 4, of the adsorption mechanisms 22 are all in contact with the ink box 4, the edges, close to the ink box 4, of the adsorption mechanisms 22 are all lower than or equal to the top end of the ink box 4, and the adsorption mechanisms 22 are made of insulating adsorption materials; the ink cartridge 4 is made of an insulating material.
During the operation of the printing machine, negatively charged ink droplets are formed, the first electrode 5 is a positive electrode, the second electrode 6 is a negative electrode, so that an upward electric field is formed between the first electrode 5 and the second electrode 6, the negatively charged ink droplets are centrifuged from the gravure roll 1 and enter the electric field, so that the negatively charged ink droplets move along a parabola under the action of the vertically downward electric field force and the gravity thereof, and according to the difference of the direction and the magnitude of the speed of leaving the gravure roll 1, a part of the ink droplets move along the parabola into the ink cartridge 4, and the other part of the ink droplets move along the parabola to the adsorption mechanisms 22 at the two sides of the ink cartridge 4 and are adsorbed by the adsorption mechanisms.
In this embodiment, since the charged ink in the ink cartridge 4 and the charged flying ink are close to each other and are mutually repelled, most of the charged flying ink is adsorbed by the adsorption mechanism 22 in the actual process.
In this embodiment, the second electrode block 52 is foldable on both sides of the first electrode block 51, and the adsorption mechanism 22 is foldable on both sides of the ink cartridge 4, and the fourth electrode block 62 is foldable on both sides of the third electrode block 61, therefore, when the gravure roll 1 is not used or cleaned, the second electrode block 52 can be turned over and folded downwards, the adsorption mechanism 22 can be turned over and folded downwards, and the fourth electrode block 62 can be turned over and folded upwards, thereby avoiding the interference of the second electrode block 52, the adsorption mechanism 22 and the fourth electrode on the cleaning of the gravure roll 1, preventing the inconvenience of cleaning workers, and avoiding the occupation of unnecessary space and the collision of the motor block and the adsorption mechanism 22 when the gravure roll is not used.
In this embodiment, the first electrode 5 and the second electrode 6 are wrapped with an insulating sleeve 64
Further, the printer further comprises a first hinge portion 5201, a fixing block 6101, and a second hinge portion 6201, wherein the first hinge portion 5201 is disposed on both sides of the first electrode block 51 and is connected to the second electrode block 52 on both sides thereof through the first hinge portions 5201 on both sides thereof, the second hinge portion 6201 is disposed on the fourth electrode block 62 close to the third electrode block 61, the second hinge portions 6201 are disposed on the frame of the printer, and the third electrode block 61 is fixed on the frame of the printer through the fixing block 6101.
The ink charging device further comprises an ink charge processing mechanism, a liquid outlet pipe 9, a first hydraulic pump 10, a liquid inlet pipe 11 and a second hydraulic pump 12, wherein the ink charge processing mechanism is a closed container and can control the charge of ink to be within a threshold value P, the liquid outlet pipe 9 is arranged on one side of the ink charge processing mechanism, the other end of the liquid outlet pipe 9 is communicated with the ink box 4, the liquid outlet pipe 9 can introduce the ink processed by the ink charge processing mechanism into the ink box 4 under the action of the first hydraulic pump 10, the liquid inlet pipe 11 is arranged on the other side of the ink charge processing mechanism, the other end of the liquid inlet pipe 11 is communicated with the ink box 4, and the liquid inlet pipe 11 can introduce the used ink in the ink box 4 into the ink charge processing mechanism for processing under the second hydraulic pump 12.
In this embodiment, only the flying ink with charges can be acted by an electric field force in the electric field, if the flying ink with charges is not enough, the effect of the electric field is not good, and only a few flying inks in the air can be removed, so the ink needs to be charged, but the ink is a flammable organic matter, if the amount of charges is too much, safety accidents such as explosion and combustion are easily caused, the ink charge processing mechanism can process the ink and enable the charges of the ink to be within a threshold value P, and the threshold value P is a safety range obtained through experiments.
In the embodiment, the ink used by the gravure roller 1 and the impression roller 2 flows into the ink charge processing mechanism through the liquid inlet pipe 11, the ink charge processing mechanism enables the ink flowing in through the liquid inlet pipe 11 to be processed with the charge amount to be within the threshold value P, and then the ink charge processing mechanism enables the ink flowing in through the liquid outlet pipe 9 to flow back to the ink box 4 again, so that an ink flow circulation and dynamic balance of the ink charge amount are formed, the ink flow circulation can prevent the ink from being bonded under a static state, and the dynamic balance of the ink charge amount enables the ink charge amount to be within the safety range threshold value P, so that the use safety performance of the ink is improved.
Further, the ink charge processing mechanism comprises an ink tank 7, partition plates 8, a spray head 13, a guide pipe 14, a third hydraulic pump 15 and a metal bottom plate 20, the partition plates 8 are uniformly arranged in the ink tank 7 at intervals along the direction from the liquid outlet pipe 9 to the liquid inlet pipe 11, the partition plates 8 divide the space in the ink tank 7 into a plurality of same compartments in sequence along the direction from the liquid outlet pipe 9 to the liquid inlet pipe 11, the liquid outlet pipe 9 is communicated with the leftmost compartment, the liquid inlet pipe 11 is communicated with the rightmost compartment, and the first hydraulic pump 10 is positioned in the leftmost compartment; the spray heads 13 are metal spray heads 13, each partition plate 8 is penetrated by at least one spray head 13, the heads of the spray heads 13 face the liquid outlet pipe 9, and the opening degree of the spray heads 13 is adjustable; the tail parts of the spray heads 13 are all communicated with a guide pipe 14; a third hydraulic pump 15 is arranged in each compartment, each spray head 13 is connected with the third hydraulic pump 15 in the compartment at the tail part thereof through a conduit 14 connected with the spray head, and the power of the third hydraulic pump 15 is adjustable; the rightmost compartment is provided with a metal chassis 20, the metal chassis 20 being grounded by a wire.
The ink used by the gravure roller 1 and the impression roller 2 flows into the rightmost compartment through the liquid inlet pipe 11, the charge amount of the ink flowing into the rightmost compartment is generally over-standard (the ink is required to rub the gravure roller 1, the impression roller 2 and the paper 3 when in use, and the charge amount is increased), the rightmost compartment is provided with a metal bottom plate 20, the metal bottom plate 20 is grounded through a lead, so that the charge of the ink flowing into the rightmost compartment is guided away, in the embodiment, the gravure roller further comprises a reticular cubic metal frame 21, the reticular cubic metal frame 21 is positioned on the metal bottom plate 20 and fills the space in the rightmost compartment, the contact area between the charged ink and the metal frame can be enlarged, most of the charge in the charged ink is guided away, and the charge amount of the charged ink is reduced and is far lower than a safety range threshold value P, then, the third hydraulic pumps 15 in the other compartments are simultaneously started, so that the ink in the rightmost compartment after the electric charge reduction amount sequentially passes through the metal nozzles 13 to reach the leftmost compartment, the ink can take negative charges after passing through the metal nozzles 13, in the embodiment, the opening degree of each metal nozzle 13 and the speed of each third hydraulic pump 15 are adjusted, so that the speed of the ink spraying out of the metal nozzles 13 is controlled, the friction degree of the ink and the metal nozzles 13 can be controlled, the electric charge amount of the ink ribbon is controlled to a certain extent, the electric charge amount of the ink ribbon flowing into the leftmost compartment is within a safety range threshold value P through adjustment of multiple experiments, the ink in the leftmost compartment flows into the ink cartridge 4 through the liquid outlet pipe 9, and the dynamic balance of the electric charge amount of the ink ribbon is further realized.
In this embodiment, the ink tank 7 is a closed negative pressure tank, and the inside oxygen content is small, thereby avoiding the ink combustion and further improving the safety performance of the ink.
Further, the ink box comprises a first liquid level sensor 16, a second liquid level sensor 17, a liquid adding pipe 18 and a fourth hydraulic pump 19, wherein the liquid adding pipe 18 is arranged outside the ink box 7 and communicated with the rightmost compartment, the fourth hydraulic pump 19 is arranged on the liquid adding pipe 18, the first liquid level sensor 16 is arranged in the rightmost compartment and used for detecting the height of an ink liquid level B in the ink box 7, and the second liquid level sensor 17 is arranged on the side wall of the ink box 4 and used for detecting the height of an ink liquid level A in the ink box 4; the first hydraulic pump 10 and the second hydraulic pump 12 are both normally open pumps; when the height of the ink liquid level A is lower than a set value N, the power of the first hydraulic pump 10 is larger than that of the second hydraulic pump 12, so that the height of the ink liquid level A reaches the range of the set value N; when the height of the ink liquid level A is higher than the set value N, the power of the first hydraulic pump 10 is smaller than that of the second hydraulic pump 12, so that the height of the ink liquid level A reaches the range of the set value N; when the ink level B is lower than the set value N, the fourth hydraulic pump 19 is activated to add new ink to the rightmost compartment through the filler tube 18; the first hydraulic pump 10, the second hydraulic pump 12, the third hydraulic pump 15 and the fourth hydraulic pump 19 are controlled to maintain a stable circulation flow state of the ink in the printing machine.
Further, any one of the adsorption mechanisms 22 comprises a liquid storage box 2201, a sliding plate 2202, a liquid absorption block 2203, a pulling motor and a pull rope, wherein the liquid storage box 2201 is arranged on one side of the ink box 4 and is hinged with the side edge of the ink box 4, the liquid storage box 2201 is open at the upper end, and the liquid storage box 2201 is made of an insulating material; the sliding plate 2202 is movably arranged between two side walls in the liquid storage box 2201; a liquid suction block 2203 is arranged between one side of the sliding plate 2202 and the side wall in the liquid storage box 2201; the pulling motor is positioned outside the electric field; a pull rope is provided between the pull motor and the sliding plate 2202, and the pull motor pulls the sliding plate 2202 to move through the pull rope.
Flying ink is adsorbed by the liquid absorption block 2203, when the liquid absorption block 2203 is adsorbed to saturation, the sliding plate 2202 is pulled by the pulling motor through the pulling rope to move, so that the liquid absorption block 2203 is extruded, ink adsorbed by the liquid absorption block 2203 is extruded into the liquid storage box 2201 to be stored, and the cyclic utilization of the liquid absorption block 2203 is realized.
Preferably, the device further comprises a guide pulley 2205, wherein the guide pulley 2205 is arranged on the outer wall of the liquid storage box 2201, and the pulling rope is wound around the guide pulley 2205 and connected with a pulling motor.
Preferably, the pull rope and the liquid absorption block 2203 are both made of pure cotton, the pull rope is a pure cotton pull rope 2206, the liquid absorption block 2203 is a pure cotton block, the pure cotton cannot generate static electricity, and the repulsion of charged ink flying and the liquid absorption block 2203 is avoided.
Further, still including first connecting tube 24, second connecting tube 25, backward flow mouth 23 and backward flow control valve 2301, the compartment outer wall on rightmost side is provided with backward flow mouth 23 and backward flow mouth 23 rather than the intercommunication, backward flow control valve 2301 sets up on backward flow mouth 23 and is used for controlling the switching of backward flow mouth 23, the stock solution box 2201 of ink cartridge 4 one side is linked together with backward flow mouth 23 through first connecting tube 24, the stock solution box 2201 of ink cartridge 4 opposite side is linked together with backward flow mouth 23 through second connecting tube 25.
The ink in the liquid storage box 2201 flows back to the rightmost compartment through the first connecting pipeline 24 and the second connecting pipeline 25, and is subjected to charge reduction treatment in the rightmost compartment together with the ink used by the gravure roll 1 and the embossing roll 2, so that the ink is reused, and the ink is saved.
Furthermore, the ink tank 7, the partition plate 8, the liquid outlet pipe 9, the liquid inlet pipe 11, the liquid feeding pipe 18, the return port 23, the first connecting pipeline 24 and the second connecting pipeline 25 are all made of insulating materials, so that the interference to an electric field and the generation of static electricity are prevented.
The above examples are merely representative of preferred embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, various changes, modifications and substitutions can be made without departing from the spirit of the present invention, and these are all within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (8)
1. A printing press having a function of suppressing ink flying, comprising:
a gravure roll;
the paper to be printed passes through the space between the gravure printing roller and the embossing roller;
the ink box is arranged beside the gravure printing roller, printing ink is contained in the ink box, and one side of the gravure printing roller is immersed in the printing ink of the ink box;
applying an electric field in the printing environment of the printing machine, so that the charged flying ink in the printing environment is intensively collected and removed under the action of the electric field;
the printing ink box comprises a printing ink box body, and is characterized by further comprising a first electrode, a second electrode and an adsorption mechanism, wherein the first electrode comprises a middle first electrode block and second electrode blocks positioned on two sides of the first electrode block, the second electrode blocks are at least two and are respectively arranged on two sides of the first electrode block in a foldable mode, the first electrode blocks are arranged on the lower side of the printing ink box, the second electrode comprises a middle third electrode block and fourth electrode blocks positioned on two sides of the third electrode block, the fourth electrode blocks are at least two and are respectively arranged on two sides of the third electrode block in a foldable mode, a gap for paper to pass through is formed between each fourth electrode block and the third electrode block, the third electrode block is positioned above the embossing roller, the first electrode is a positive electrode, and the second electrode is a negative electrode;
the adsorption mechanisms are arranged on two sides of the ink box in a foldable mode, the adsorption mechanisms are located between the first electrode and the second electrode, the edges, close to the ink box, of the adsorption mechanisms are in contact with the ink box, the edges, close to the ink box, of the adsorption mechanisms are lower than or equal to the top end of the ink box, and the adsorption mechanisms are made of insulating adsorption materials;
the ink box is made of an insulating material;
still including printing ink charge processing mechanism, drain pipe, first hydraulic pump, feed liquor pipe and second hydraulic pump, printing ink charge processing mechanism is a confined container and can control the charge of printing ink and be located threshold value P in, printing ink charge processing mechanism one side is provided with the drain pipe, the drain pipe other end with printing ink box intercommunication, the drain pipe can be with the process printing ink that printing ink charge processing mechanism handled is in let in under the effect of first hydraulic pump in the printing ink box, printing ink charge processing mechanism opposite side is provided with the feed liquor pipe, the feed liquor pipe other end with printing ink box is linked together, the feed liquor pipe can with used printing ink in the printing ink box is in let in under the second hydraulic pump handle in the printing ink charge processing mechanism.
2. A printing press having an ink-flying suppression effect as defined in claim 1, wherein:
the printer is characterized by further comprising a first hinged portion, a fixed block and a second hinged portion, wherein the first hinged portion is arranged on each of two sides of the first electrode block, the first hinged portion is connected with the second electrode block on each of two sides of the first electrode block through the first hinged portion, the fourth electrode block is close to the third electrode block, the second hinged portion is arranged on the rack of the printer, and the third electrode block is fixed on the rack of the printer through the fixed block.
3. A printer with suppressed ink flying phenomenon according to claim 2, wherein said ink charge processing mechanism comprises:
an ink tank;
the partition plates are uniformly arranged in the ink box at intervals along the direction from the liquid outlet pipe to the liquid inlet pipe, the space in the ink box is sequentially divided into a plurality of identical compartments along the direction from the liquid outlet pipe to the liquid inlet pipe by the partition plates, the liquid outlet pipe is communicated with the leftmost compartment, the liquid inlet pipe is communicated with the rightmost compartment, and the first hydraulic pump is positioned in the leftmost compartment;
the spray heads are metal spray heads, each partition plate is penetrated by at least one spray head, the heads of the spray heads face the liquid outlet pipe, and the opening degree of the spray heads is adjustable;
the tail parts of the spray heads are all communicated with the guide pipes;
a third hydraulic pump, each of said compartments having said third hydraulic pump disposed therein, each of said spray heads being connected to said third hydraulic pump in said compartment at the rear thereof through said conduit connected thereto, the power of said third hydraulic pump being adjustable;
the metal bottom plate is arranged in the rightmost compartment and is grounded through a lead, and ink flowing into the rightmost compartment is subjected to charge removal;
the ink of the past charge flows into the compartment on the leftmost side through the metal head, and the metal head and the ink of the past charge are in friction charging to enable the amount of the charged ink flowing into the compartment on the leftmost side to be within a safe range threshold value P.
4. A printing press having an ink-flying suppression effect according to claim 3, wherein:
the metal partition plate is characterized by further comprising a net-shaped cubic metal frame, wherein the net-shaped cubic metal frame is positioned on the metal bottom plate and fills the space in the rightmost compartment.
5. A printing press having an ink-flying suppression effect according to claim 4, wherein:
the ink box is characterized by further comprising a first liquid level sensor, a second liquid level sensor, a liquid feeding pipe and a fourth hydraulic pump, wherein the liquid feeding pipe is arranged outside the ink box and communicated with the rightmost compartment, the fourth hydraulic pump is arranged on the liquid feeding pipe, the rightmost compartment is internally provided with the first liquid level sensor and is used for detecting the height of an ink liquid level B in the ink box, and the second liquid level sensor is arranged on the side wall of the ink box and is used for detecting the height of the ink liquid level A in the ink box;
the first hydraulic pump and the second hydraulic pump are both normally open pumps;
when the height of the ink liquid level A is lower than a set value N, the power of the first hydraulic pump is larger than that of the second hydraulic pump, so that the height of the ink liquid level A is within a range of the set value N;
when the height of the ink liquid level A is higher than a set value N, the power of the first hydraulic pump is smaller than that of the second hydraulic pump, so that the height of the ink liquid level A is within a range of the set value N;
when the height of the ink liquid level B is lower than a set value N, starting the fourth hydraulic pump, and adding new ink into the rightmost compartment through the liquid adding pipe;
the first hydraulic pump, the second hydraulic pump, the third hydraulic pump and the fourth hydraulic pump are controlled, so that the ink in the printing machine is always maintained in a stable circulating flow state.
6. A printer with ink flying suppression according to claim 5, wherein any one of the adsorption mechanisms comprises:
the liquid storage box is arranged on one side of the ink box and is hinged with the side edge of the ink box, the upper end of the liquid storage box is provided with an opening, and the liquid storage box is made of an insulating material;
the sliding plate is movably arranged between two side walls in the liquid storage box;
the liquid absorbing block is arranged between one side of the sliding plate and the side wall in the liquid storage box;
a pull motor located outside the electric field;
the pull rope is arranged between the pull motor and the sliding plate, and the pull motor pulls the sliding plate to move through the pull rope;
the adsorption mechanism further comprises a guide pulley, the guide pulley is arranged on the outer wall of the liquid storage box, and the pull rope is connected with the pulling motor by bypassing the guide pulley;
the pull rope and the liquid absorption block are both made of pure cotton, the pull rope is a pure cotton pull rope, and the liquid absorption block is a pure cotton block.
7. A printing press having an ink-flying suppression effect as defined in claim 6, wherein:
still including first connecting tube, second connecting tube, backward flow mouth and backward flow control valve, the rightmost side the compartment outer wall is provided with the backward flow mouth just backward flow mouth and its inside intercommunication, the backward flow control valve sets up just be used for control on the backward flow mouth the switching of backward flow mouth, printing ink box one side the stock solution box passes through first connecting tube with the backward flow mouth is linked together, printing ink box opposite side the stock solution box passes through the second connecting tube with the backward flow mouth is linked together.
8. A printing press having an ink-flying suppression function according to claim 7, wherein:
ink box the baffle the drain pipe the feed liquor pipe the liquid feeding pipe with the backward flow mouth first connecting tube with the second connecting tube is insulating material and makes.
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| CN113561627B true CN113561627B (en) | 2022-08-09 |
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| US2483462A (en) * | 1945-05-03 | 1949-10-04 | William C Huebner | Process and apparatus for electronographic printing |
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| CN113561627A (en) | 2021-10-29 |
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