CN116409009B - Production method of super-hydrophobic composite corrugated carton based on nano titanium dioxide - Google Patents

Production method of super-hydrophobic composite corrugated carton based on nano titanium dioxide Download PDF

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Publication number
CN116409009B
CN116409009B CN202310437958.6A CN202310437958A CN116409009B CN 116409009 B CN116409009 B CN 116409009B CN 202310437958 A CN202310437958 A CN 202310437958A CN 116409009 B CN116409009 B CN 116409009B
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paper
film
corrugated
cleaning
titanium dioxide
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CN202310437958.6A
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Chinese (zh)
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CN116409009A (en
Inventor
李孝文
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Wuhan Zhongwang Packaging Co ltd
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Wuhan Zhongwang Packaging Co ltd
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Priority to CN202310437958.6A priority Critical patent/CN116409009B/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B31MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31BMAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00Making rigid or semi-rigid containers, e.g. boxes or cartons
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B31MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31BMAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/006Controlling; Regulating; Measuring; Improving safety
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B31MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31BMAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/14Cutting, e.g. perforating, punching, slitting or trimming
    • B31B50/20Cutting sheets or blanks
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B31MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31BMAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/74Auxiliary operations
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B31MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31BMAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/74Auxiliary operations
    • B31B50/741Moistening; Drying; Cooling; Heating; Sterilizing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B31MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31BMAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/74Auxiliary operations
    • B31B50/88Printing; Embossing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B31MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31FMECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F1/00Mechanical deformation without removing material, e.g. in combination with laminating
    • B31F1/20Corrugating; Corrugating combined with laminating to other layers
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H27/00Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/30Multi-ply
    • D21H27/40Multi-ply at least one of the sheets being non-planar, e.g. crêped
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/64Paper recycling

Abstract

The application relates to the technical field of corrugated boxes, and particularly discloses a production method of a super-hydrophobic composite corrugated box based on nano titanium dioxide, which comprises the following steps of S1, covering chitosan with paper pulp; s2, performing secondary film coating to obtain kraft pulp; s3, preparing special paper for the surface layer of the corrugated paper; s4, preparing corrugated boards; s5, preparing a carton; whether utilize detection device to dry printing ink detects to utilize focusing device to focus ultraviolet lamp assigned position, detection device including install in support, activity set up in film roll on the support, be used for carrying out the winding mechanism of winding to film roll, be used for moving the film to the adjustment mechanism with cardboard butt position, be provided with on the support and be used for adjusting the conveyer of cardboard position, ultraviolet lamp is located the conveyer top. The method has the effect of detecting whether the carton ink is dried or not, and improves the quality of carton finished products.

Description

Production method of super-hydrophobic composite corrugated carton based on nano titanium dioxide
Technical Field
The application relates to the technical field of corrugated boxes, in particular to a production method of a super-hydrophobic composite corrugated box based on nano titanium dioxide.
Background
The present corrugated paper box is made of corrugated paper board, waxed corrugated paper board and other materials, and is a packaging container with certain rigidity and strength. The corrugated paper box has the advantages of light weight, high cost performance, good structural performance, foldability, strong printing adaptability, environmental protection, recycling property, suitability for automatic packaging operation and the like, becomes a paper packaging container which is commonly used so far and is rapid in development, is one of the most important packaging forms in modern packaging, simultaneously accords with the concept of green development in China at present, accelerates the circulation of various products due to the development of logistics industry, is mainly applied to frozen foods and products requiring low-temperature fresh-keeping, can be used for fresh-keeping transportation of fresh fruits and vegetables, and has good waterproof performance when the corrugated paper box for transportation of the products is required to have good strength. The traditional waterproof corrugated paper box needs to form a waterproof layer on the surface of the paper box, and the current waterproof agent coating method is many. (1) A liquid coating tank is additionally arranged on a corrugated board processing assembly line, and a layer of water repellent agent taking wax and rosin as main raw materials is directly coated on the surface of the corrugated board; (2) the whole roll of base paper was coated with an imported acrylic water-repellent coating (food grade) using a coater. Although the waterproof problem can be solved, the coating problem is adopted, and the environment is not protected.
In the related art, the Chinese patent with the application number of CN201810789753.3 proposes a production method of a super-hydrophobic composite corrugated paper box based on nano titanium dioxide, firstly, a multilayer film is constructed on the surface of the fiber by adopting a method of performing layer-by-layer self-assembly on the chitosan and the modified nano titanium dioxide respectively, and as the number of layers is increased, chitosan/nano titanium dioxide powder grows on the surface of the kraft fiber, paper fiber is gradually covered by the modified titanium dioxide, and the kraft paper with the super-hydrophobic surface can be obtained through the traditional papermaking process and the high-temperature heat treatment due to the good hydrophobic performance and the gradually increased contact angle with water; the kraft paper and the ultrathin calendered kraft paper are bonded by using the molten polyethylene, so that the bonding effect is achieved, two layers of kraft paper are compounded, and more importantly, the adhesive forms a layer of film, so that the waterproof, dampproof, barrier performance, puncture strength, burst strength and the like of the compounded surface layer paper are further improved.
In the related art, when the ink is dried by irradiating ultraviolet rays, it is not provided to detect whether the ink is completely dried or not, and if the ink is not dried and accumulated, there is a defect that the quality of the corrugated cardboard box is affected.
Disclosure of Invention
In order to solve the problem that the quality of the paperboard is affected by the non-drying of printing ink, the application provides a production method of a super-hydrophobic composite corrugated carton based on nano titanium dioxide.
The application provides a production method of a super-hydrophobic composite corrugated carton based on nano titanium dioxide, which adopts the following technical scheme:
a production method of a super-hydrophobic composite corrugated carton based on nano titanium dioxide comprises the following steps,
s1, covering chitosan with paper pulp, dispersing kraft pulp in a chitosan solution with the concentration of 1g/L, stirring to form a suspension, and carrying out suction filtration by using a Buchner funnel;
s2, secondarily coating to obtain kraft pulp, dispersing the fibers obtained in the S1 into a modified nano titanium dioxide solution with the concentration of 2g/L, stirring into a fiber suspension, and separating the fiber suspension by using a Buchner funnel to obtain the kraft pulp;
s3, preparing special paper for the surface layer of the corrugated paper, repeating the steps S1 and S2 for a plurality of times to obtain pulp fibers covered with multi-layer chitosan and modified nano titanium dioxide, processing the modified kraft paper and ultrathin calendered kraft paper into composite paper, and finally preparing special paper for the surface layer of the corrugated paper;
s4, preparing a corrugated board, namely respectively placing the corrugated board on a base paper frame according to the sequence of special paper on the surface layer of the corrugated board, roll paper for core paper and special paper on the surface layer of the corrugated board, and bonding and drying the corrugated board by using a single-sided machine to prepare the corrugated board;
s5, preparing a paper box, cutting the paper board, transferring the printing ink on the paper board through an offset press, radiating by an ultraviolet lamp tube to enable the printing ink to be dried quickly, feeding the paper box into a folding machine for folding, and finally feeding the paper box into a die-cutting machine for die-cutting into the paper box with specified specification;
whether utilize detection device to dry printing ink detects to utilize focusing device to focus ultraviolet lamp assigned position, detection device including install in support, activity set up in film roll on the support, be used for carrying out the winding mechanism of winding to film roll, be used for moving the film to the adjustment mechanism with cardboard butt position, be provided with on the support and be used for adjusting the conveyer of cardboard position, ultraviolet lamp is located the conveyer top.
Optionally, the adjustment mechanism includes with support sliding connection's regulating plate, be used for driving the reciprocating piece that the regulating plate moved towards the cardboard, two relative movements are in slider on the regulating plate, be used for driving two the drive assembly and two respectively with slider fixed connection's regulating roller, two the distance between the regulating roller is not less than the cardboard and corresponds the size in direction.
Optionally, the drive assembly includes double-end threaded rod, slide bar and driving motor, two the slider respectively with the both ends screw fit of double-end threaded rod, the double-end threaded rod with the regulating plate rotates to be connected, the slide bar with regulating plate fixed connection, just slide bar length direction with the length direction parallel arrangement of double-end threaded rod, the driving motor output with the one end fixed connection of double-end threaded rod, driving motor install in on the regulating plate.
Optionally, the winding mechanism includes winding roller, pull roll and traction motor, winding roller with the pull roll is located the both sides of cardboard respectively, and all with the support rotates to be connected, the both ends of film roll respectively with winding roller and the perisporium fixed connection of pull roll, traction motor output with the tip fixed connection of pull roll.
Optionally, focusing device include with support sliding connection's handling frame, with handling piece fixed connection's convex lens and be used for responding to cardboard focus position temperature's control by temperature change subassembly, the handling frame is followed the film roll direction of operation motion, convex lens focuses on the stoving to cardboard printing ink undried position, the support is provided with and is used for realizing handling frame motion's first cylinder.
Optionally, the support sliding connection has the vertical pole, vertical pole sliding connection has the horizontal pole, the horizontal pole goes up and down to be provided with the marker that is used for carrying out extrusion mark to the cardboard, vertical pole slip direction is followed cardboard direction of delivery, horizontal pole slip direction is followed the direction of motion setting of film roll.
Optionally, the temperature control component includes a temperature sensor, the temperature sensor is located right below the convex lens, and the temperature sensor is electrically connected with the first cylinder.
Optionally, the support still is provided with the cleaning device who is used for carrying out the clearance to printing ink on the film roll, cleaning device include with support fixed connection's cleaning box, lift set up in lifter plate in the cleaning box and be used for the auxiliary assembly of supplementary clearance, cleaning box intussuseption is filled with the cleaning agent, cleaning box both sides wall all sets up the wearing mouth that is used for the film to pass, wearing mouth is located the top of cleaning agent liquid level in the cleaning box.
Optionally, the auxiliary assembly comprises a foam-rubber cushion and a rolling element for kneading the film, wherein the foam-rubber cushion is arranged on the bottom wall of the cleaning box and is positioned below the liquid level of the cleaning agent.
Optionally, the rolling piece sets up to the circle roller, circle roller outer wall equidistant distribution has a plurality of round bars, round bar length direction is followed the length direction setting of circle roller, the circle roller with the lifter plate rotates to be connected.
In summary, the present application includes at least one of the following beneficial technical effects:
1. ultraviolet lamp dries printing ink on the cardboard, and the transfer roller conveys the cardboard to the film below, and the pulling roll pulls and releases the film this moment, and driving motor control double-end threaded rod turns to simultaneously, and two sliders all move on the slide bar, realize the effect of adjusting the distance between two regulating rolls, and the regulating plate drives the regulating roll and moves down, and the regulating roll moves the film to the position that supports with the cardboard, and whether the staff is through observing adhesion printing ink on the film, and then judges whether the cardboard corresponds position printing ink stoving;
2. when ink is adhered to the film, the corresponding position is extruded and marked through the marking rod, the paper board is moved to the lower part of the ultraviolet lamp through the conveying roller and transversely moved, meanwhile, the convex lens is moved to the appointed position, the marking position on the paper board is moved to the lower part of the convex lens, at the moment, under the focusing and drying action of the convex lens, the drying efficiency of the non-dry ink on the paper board is greatly improved, and under the protection action of the temperature sensor, the drying safety performance of the paper board is ensured;
3. the film is wound through the traction roller, the film enters the cleaning box, the film is in contact with the sponge cushion at the moment, the sponge cushion is extruded and deformed, the round bar kneads the film at the moment along with the rotation of the round roller, the efficiency of cleaning ink is greatly improved, and the recycling effect of the film is achieved at the moment along with the thorough cleaning of the film.
Drawings
FIG. 1 is a process flow diagram of an embodiment of the present application.
Fig. 2 is a schematic view of a buchner funnel of an embodiment of the present application.
Fig. 3 is a schematic overall structure of an embodiment of the present application.
Fig. 4 is a schematic diagram of a detecting device, a focusing device and a cleaning device according to an embodiment of the present application.
FIG. 5 is a schematic view of a cleaning device and a winding mechanism according to an embodiment of the present application.
Reference numerals: 1. a buchner funnel; 2. a bracket; 3. a roll of film; 4. a conveying roller; 5. an adjusting plate; 6. a shuttle; 7. a slide block; 8. an adjusting roller; 9. a double-ended threaded rod; 10. a slide bar; 11. a driving motor; 12. a traction roller; 13. a winding roller; 14. a traction motor; 15. an operation rack; 16. a convex lens; 17. a temperature sensor; 18. a first cylinder; 19. a longitudinal bar; 20. a cross bar; 21. a marker; 22. a cleaning box; 23. a lifting plate; 24. a sponge cushion; 25. a round roller; 26. round strips; 27. a rotating lever; 28. a stirring rod; 29. a belt; 30. a rotating motor; 31. sealing cover.
Description of the embodiments
The application is described in further detail below with reference to fig. 1-5.
The embodiment of the application discloses a production method of a super-hydrophobic composite corrugated carton based on nano titanium dioxide. Referring to fig. 1 and 2, a method for producing a super-hydrophobic composite corrugated carton based on nano titanium dioxide includes the steps of,
s1, covering chitosan with paper pulp, dispersing dry kraft pulp in a chitosan solution with the concentration of 1g/L, stirring to form a suspension, and carrying out suction filtration by using a Buchner funnel 1; in this example, the dispersion was carried out in a proportion of 1 liter of a chitosan solution having a concentration of 1g/L per 5 g of oven dried kraft pulp; and stirring for 20-30 minutes by adopting low-speed magnetic stirring, and rinsing the obtained fiber with ultra-pure water for 2-3 times after the suction filtration work is completed.
The opening part of buchner funnel 1 can threaded connection have sealed lid 31 in this embodiment, sealed lid 31 rotates the dwang 27 of connection, the dwang 27 is located two puddlers 28 of one end outer wall fixedly connected with in buchner funnel 1, the puddler 28 is used for carrying out slow stirring to the material in buchner funnel 1, realize the effect of spreading out, and then be favorable to promoting the effect of suction filtration, simultaneously, sealed lid 31 top outer wall installs rotating motor 30, can adopt belt 29 to realize transmission connection between rotating motor 30's the output and the dwang 27, the dwang 27 inner wall is hollow setting, cooling water is equipped with in the dwang 27, the cooling water is used for reducing the temperature in suction filtration and stirring in-process, simultaneously after suction filtration work is accomplished, can spray into liquid nitrogen in the cooling water in this moment, the cooling water in the dwang 27 cools down into ice fast, under the effect of the ice-cube in the dwang 27 this moment, and then to the effect of lowering down in buchner funnel 1, the work efficiency of suction filtration is accelerated.
Referring to fig. 1 and 2, S2, a second coating to obtain kraft pulp, dispersing the fiber obtained in S1 into a modified nano titania solution with a concentration of 2g/L, and specifically preparing the modified titania solution by: dissolving a proper amount of nano titanium dioxide particles in a 9:1 ethanol/water system, regulating the pH of the system to 4-5 by using acetic acid, setting the temperature to 70-80 ℃, stirring for 4-5 hours at the speed of 450-500 rpm, and slowly dropwise adding a hexadecyltrimethoxysilane solution with the concentration of 15% into an absolute ethanol system; centrifuging the system after the reaction time is cut off, taking modified titanium dioxide precipitate, purifying and centrifuging for 2-3 times by using ethanol, drying the final product at 60 ℃ for 24 hours, and dissolving the final product in a proper amount of water to obtain a modified nano titanium dioxide solution with the concentration of 2 g/L; separating the fiber suspension by using a Buchner funnel 1 after stirring the fiber suspension into fiber suspension by adopting low-speed magnetic force, and rinsing the separated fiber with ultrapure water for 2-3 times to obtain secondary tectorial membrane to obtain kraft pulp;
s3, preparing special paper for the surface layer of the corrugated paper, repeating the steps S1 and S2 for a plurality of times to obtain pulp fibers covered with multi-layer chitosan and modified nano titanium dioxide, preparing modified kraft paper according to the conventional kraft paper growth step, processing the modified kraft paper and ultrathin calendered kraft paper into composite paper, and finally preparing special paper for the surface layer of the corrugated paper;
s4, preparing corrugated boards, namely respectively placing the special paper on the surface layer of the corrugated boards, the roll layer paper for core paper and the special paper on the surface layer of the corrugated boards on a base paper frame in the sequence of the special paper on the surface layer of the corrugated boards, respectively preheating each paper web by a preheater, regulating the moisture of the roll layer paper by the preheater, ironing the paper web, then entering a single-sided machine, using the single-sided machine to carry out edge pressing and bonding, carrying out edge pressing and bonding by upper and lower corrugated rolls, coating an adhesive, then bonding the paper web with the special paper on the surface layer of the corrugated boards, entering a drying device of a double-sided machine set, and carrying out bonding and drying to obtain the corrugated boards;
s5, preparing a paper box, cutting the paper board, transferring the printing ink on the paper board through an offset press, radiating by an ultraviolet lamp tube to enable the printing ink to be dried quickly, feeding the paper box into a folding machine to be folded, and finally feeding the paper box into a die cutting machine to be die-cut into the paper box with the specified specification.
Referring to fig. 3 and 4, whether the ink is dried or not is detected by using the detecting device, and the ultraviolet lamp is focused at the designated position by using the focusing device, the detecting device comprises a bracket 2 installed on the offset press, a film roll 3 movably arranged on the bracket 2, a winding mechanism for winding the film roll 3, and an adjusting mechanism for moving the film to a position abutting against the paper board, wherein the bracket 2 is installed on the offset press, and the bracket 2 is further provided with a transmission device for adjusting the position of the paper board, the transmission device selects a plurality of transmission rollers 4 for transmission in the embodiment, the plurality of transmission rollers 4 are driven by a plurality of sprockets and chains in the prior art, the paper board transportation effect can be realized in the process of simultaneously rotating the plurality of transmission rollers 4, the ultraviolet lamp is positioned above the plurality of transmission rollers 4, the ultraviolet lamp is staggered with the film, the paper board is firstly dried by the ultraviolet lamp, after the drying operation is finished, whether the paper board is adhered to the position of the film roll 3 is judged by judging whether the ink is adhered to the film, and therefore, if the film is adhered with the ink, workers can find out that the ink is convenient.
Referring to fig. 4 and 5, the winding mechanism includes a winding roller 13, a traction roller 12 and a traction motor 14, the winding roller 13 and the traction roller 12 are respectively located at two sides of the cardboard and are both rotatably connected with the bracket 2, two ends of the film roll 3 are respectively fixedly connected with the winding roller 13 and a peripheral wall of the traction roller 12, an output end of the traction motor 14 is fixedly connected with an end of the traction roller 12, when the cardboard moves to below the film, the traction motor 14 controls the traction roller 12 to rotate at the moment, the film is pulled to above the cardboard at the moment, and the size of a pulled part of the film is larger than the corresponding size of the cardboard, so that the film is conveniently extruded to be abutted with the cardboard.
Referring to fig. 3 and 4, the adjusting mechanism includes an adjusting plate 5 slidably connected with the bracket 2, a reciprocating member 6 for driving the adjusting plate 5 to move towards the cardboard, two sliding blocks 7 relatively moving on the adjusting plate 5, a driving assembly for driving the two sliding blocks 7 to move, and two adjusting rollers 8 fixedly connected with the sliding blocks 7 respectively, wherein the distance between the two adjusting rollers 8 is not smaller than the dimension of the cardboard corresponding direction, in this embodiment, the adjusting rollers 8 and the sliding blocks 7 may also be rotationally connected, the length dimension of the adjusting rollers 8 is not smaller than the width dimension of the film, the reciprocating member 6 may be a cylinder or an electric cylinder in this embodiment, and other equipment capable of reciprocating motion, and the reciprocating member 6 controls the adjusting plate 5 to move towards the cardboard.
The drive assembly includes double-end threaded rod 9, slide bar 10 and driving motor 11, two sliders 7 respectively with the both ends screw cooperation of double-end threaded rod 9, the screw direction at double-end threaded rod 9 both ends is opposite, the length direction of double-end threaded rod 9 is along film direction of motion, the length direction parallel arrangement of double-end threaded rod 9 and slide bar 10, the both ends of double-end threaded rod 9 all rotate with regulating plate 5 and are connected, slide bar 10 and regulating plate 5 fixed connection, driving motor 11's output and the one end fixed connection of double-end threaded rod 9, driving motor 11 installs on regulating plate 5, according to the size of different cardboard along film direction of motion, the distance between two regulating rollers 8 needs to be controlled at this moment, ensure that the distance is greater than the cardboard size of cardboard corresponding direction, driving motor 11 controls double-end threaded rod 9 and rotates, under the restriction of slide bar 10, slider 7 rotates regulating roller 8, distance between two regulating rollers 8 takes place to be close to each other or keep away from each other and move, realize the effect that controls the distance between two regulating rollers 8 at this moment, through reciprocating member 6 control regulating plate 5 moves down, move down, two regulating rollers drive to the position to the realization film, and whether film is dried to the printing ink is carried out to the position, and then realize the film is pressed to the position.
After film and cardboard butt, need fine setting regulating plate 5 distance up this moment for let the distance between film and the cardboard fine setting for the film is in the relaxation state, and the contact between film and the cardboard is not fully contacted, also can control pull roll 12 simultaneously and rotate, make just completely separate between film and the cardboard, be convenient for the staff observe the film this moment, see whether there is printing ink on the film, because the film is transparent state, whether the staff of being convenient for judges on the film has printing ink, accomplish the detection effect to printing ink.
Referring to fig. 3 and 4, the support 2 is slidably connected with a vertical rod 19, the vertical rod 19 is slidably connected with a cross rod 20, a marker 21 for extruding and marking the paper board is arranged on the cross rod 20 in a lifting manner, the sliding direction of the vertical rod 19 is along the conveying direction of the paper board, the sliding of the vertical rod 19 and the sliding of the cross rod 20 can be controlled by an air cylinder, the movement of the air cylinder can be driven to move by a screw rod, a conventional technical means is omitted in the embodiment, the control of the marker 21 can be controlled by the air cylinder, the marker 21 can be set to be a marker rod with high hardness, the effect of extruding and marking the paper board can be achieved, when a worker sees that the ink is adhered on the film, the mark on the paper board can be moved to a designated position by using the marker 21 to extrude downwards, and the position of the paper board where the ink is not dried is marked, so that the subsequent drying is facilitated.
The focusing device comprises an operation frame 15 which is in sliding connection with the support 2, a convex lens 16 which is fixedly connected with the operation block, and a temperature component for sensing the temperature of the focusing position of the paper board, wherein the operation piece moves along the running direction of the film, the position of the convex lens 16 in the vertical direction is adjusted according to the position of the ultraviolet lamp between the starting operation, the focusing on the paper board is ensured, the position of the paper board, which is not dry with printing ink, is convenient to dry at the moment, the convex lens 16 focuses and dries the position of the paper board, the support 2 is provided with a first air cylinder 18 for realizing the movement of the operation frame 15, when the focusing and drying of the printing ink on the paper board are needed, the first air cylinder 18 controls the operation frame 15 to move to a designated position, in the embodiment, the position of the convex lens 16 is located above the conveying roller 4, the position of the side wall of the support 2 is located, and the paper board is reversely rotated by the conveying roller 4, and the paper board is returned to the lower part of the ultraviolet lamp.
In the embodiment, the control of the position of the paper board along the axial direction of the conveying roller 4 can be realized by adopting the air cylinder to be matched with the clamping arm, namely, the clamping arm clamps the paper board, and the air cylinder controls the paper board to move along the axial direction of the conveying roller 4, so that the position of the non-dried ink can be moved to the lower part of the convex lens 16 by combining the conveying effect of the conveying roller 4, and the ultraviolet lamp is focused at the non-dried ink position under the action of the convex lens 16, so that the efficiency of drying the ink is greatly improved; in this embodiment, the ink on the cardboard is not dried in a lot according to the actual situation, so that it is more convenient to move the cardboard relative to the position of the movable convex lens 16.
Referring to fig. 3 and 4, the temperature control assembly includes a temperature sensor 17 (as shown in fig. 5), the temperature sensor 17 is located under the convex lens 16, the temperature sensor 17 is electrically connected with the first cylinder 18, the temperature sensor 17 is controlled and connected with a PLC controller, the PLC controller is controlled and connected with the first cylinder 18, the set temperature is lower than the ignition point of the paper board, but higher than the temperature of the ink drying, the safety effect on the ink focusing and drying process is achieved, when the temperature of the focusing position of the convex lens 16 exceeds the set value, the temperature sensor 17 triggers the first cylinder 18 to work at the moment, the first cylinder 18 moves the operation frame 15 to a position far away from the paper board, and the effect of drying the non-dried ink position of the paper board is achieved.
Referring to fig. 4 and 5, after the printing ink is dried, the film needs to be cleaned at this time to achieve the recycling effect, the support 2 is further provided with a cleaning device for cleaning the printing ink on the film roll 3, the cleaning device comprises a cleaning box 22 fixedly connected with the support 2, a lifting plate 23 arranged in the cleaning box 22 in a lifting manner and an auxiliary assembly for assisting cleaning, the cleaning box 22 is filled with cleaning agents, white vinegar or alcohol or soapy water can be selected as the cleaning agents in the embodiment, two opposite side walls of the cleaning box 22 are respectively provided with a penetrating opening for the film to penetrate, the penetrating openings are located above the cleaning agent liquid level in the cleaning box 22, the lifting plate 23 is driven by an air cylinder in the embodiment, when the film enters the cleaning agents in the cleaning box 22, the lifting plate 23 is controlled to move downwards, the film is pushed into the cleaning agents by the lifting plate 23, the printing ink on the film is dissolved in the cleaning agents at this time, and the effect of cleaning the printing ink on the film is achieved.
The auxiliary assembly comprises a foam-rubber cushion 24 and rolling parts for kneading the film, the foam-rubber cushion 24 is arranged on the bottom wall of the cleaning box 22, the foam-rubber cushion 24 is positioned below the liquid level of the cleaning agent, the foam-rubber cushion 24 is used for adsorbing the cleaning agent and for friction cleaning of ink on the film, the rolling parts are round rollers 25, the outer wall of each round roller 25 is fixedly connected with a plurality of round bars 26 at equal intervals, the length direction of each round bar 26 is along the length direction of each round roller 25, the round rollers 25 are rotationally connected with the lifting plate 23, the axial direction of each round roller 25 is perpendicular to the moving direction of the film, the round rollers 25 and the round bars 26 are made of light materials with good rust resistance, a release surface between each round bar 26 and the film is an arc surface, and the abrasion degree of each round bar 26 to the film is reduced; along with the film rolling, the film is in contact with the foam-rubber cushion 24 at this moment, and the foam-rubber cushion 24 is extruded and deformed, along with the rotation of the round roller 25, the round bar 26 kneads the film at this moment, and the efficiency of cleaning the printing ink is greatly improved.
The implementation principle of the production method of the super-hydrophobic composite corrugated paper box based on the nano titanium dioxide provided by the embodiment of the application is as follows: ultraviolet lamp dries printing ink on the cardboard, transfer roller 4 conveys the cardboard to the film below, pull roll 12 pulling and release film this moment, driving motor 11 control double-end threaded rod 9 changes simultaneously, two sliders 7 all move on slide bar 10, realize the effect of adjusting the distance between two dancer rolls 8, dancer roll 8 down is driven to regulating plate 5, dancer roll 8 moves the film to the position with cardboard butt, the staff is through observing whether adhesion printing ink on the film, and then judge whether cardboard corresponds the position printing ink stoving.
When the printing ink is adhered to the film, the corresponding position is extruded and marked through the marking rod, the paper board is moved to the lower part of the ultraviolet lamp through the conveying roller 4 and transversely moved, meanwhile, the convex lens 16 is moved to the appointed position, the marking position on the paper board is moved to the lower part of the convex lens 16, at the moment, under the focusing and drying action of the convex lens 16, the drying efficiency of the non-dried printing ink on the paper board is greatly improved, and under the protection action of the temperature sensor 17, the drying safety performance of the paper board is ensured.
The film is wound through the traction roller 12, the film enters the cleaning box 22, the film is in contact with the foam-rubber cushion 24 at the moment, the foam-rubber cushion 24 is extruded and deformed, the round bar 26 kneads the film at the moment along with the rotation of the round roller 25, the cleaning efficiency of ink is greatly improved, and the recycling effect of the film is achieved at the moment along with the thorough cleaning of the film.
The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.

Claims (3)

1. A production method of a super-hydrophobic composite corrugated carton based on nano titanium dioxide is characterized by comprising the following steps: comprises the following steps of the method,
s1, covering chitosan with paper pulp, dispersing kraft pulp in a chitosan solution with the concentration of 1g/L, stirring to form a suspension, and carrying out suction filtration by using a Buchner funnel (1);
s2, secondarily coating to obtain kraft pulp, dispersing the fibers obtained in the S1 into a modified nano titanium dioxide solution with the concentration of 2g/L, stirring into a fiber suspension, and then separating the fiber suspension by using a Buchner funnel (1) to obtain the kraft pulp by secondarily coating;
s3, preparing special paper for the surface layer of the corrugated paper, repeating the steps S1 and S2 for a plurality of times to obtain pulp fibers covered with multi-layer chitosan and modified nano titanium dioxide, processing the modified kraft paper and ultrathin calendered kraft paper into composite paper, and finally preparing special paper for the surface layer of the corrugated paper;
s4, preparing corrugated boards, namely respectively placing the special paper on the surface layer of the corrugated board, the roll layer paper for core paper and the special paper on the surface layer of the corrugated board on a base paper frame in the sequence of the special paper on the surface layer of the corrugated board, and performing edge pressing bonding by a single-sided machine and bonding and drying by a double-sided machine set to prepare the corrugated boards;
s5, preparing a paper box, cutting the paper board, transferring the printing ink on the paper board through an offset press, radiating by an ultraviolet lamp tube to enable the printing ink to be dried quickly, feeding the paper box into a folding machine for folding, and finally feeding the paper box into a die-cutting machine for die-cutting into the paper box with specified specification;
detecting whether the printing ink is dried or not by using a detection device and focusing an ultraviolet lamp at a designated position by using a focusing device, wherein the detection device comprises a bracket (2) arranged on the offset press, a film roll (3) movably arranged on the bracket (2), a winding mechanism for winding the film roll (3) and an adjusting mechanism for moving the film to a position abutting against a paperboard, the bracket (2) is provided with a conveying device for adjusting the position of the paperboard, and the ultraviolet lamp is positioned above the conveying device; the adjusting mechanism comprises an adjusting plate (5) which is in sliding connection with the bracket (2), a reciprocating piece (6) which is used for driving the adjusting plate (5) to move towards the paperboard, two sliding blocks (7) which relatively move on the adjusting plate (5), a driving component which is used for driving the two sliding blocks (7) to move, and two adjusting rollers (8) which are respectively and fixedly connected with the sliding blocks (7), wherein the distance between the two adjusting rollers (8) is not smaller than the dimension of the paperboard in the corresponding direction; the focusing device comprises an operation frame (15) which is in sliding connection with the support (2), a convex lens (16) which is fixedly connected with the operation frame (15) and a temperature control assembly which is used for sensing the temperature of a focusing position of the paperboard, wherein the operation frame (15) moves along the running direction of the film roll (3), the convex lens (16) focuses and dries the unrefutilely position of the paperboard printing ink, the support (2) is provided with a first cylinder (18) which is used for realizing the movement of the operation frame (15), the temperature control assembly comprises a temperature sensor (17), the temperature sensor (17) is positioned under the convex lens (16), and the temperature sensor (17) is electrically connected with the first cylinder (18); the support (2) is connected with a longitudinal rod (19) in a sliding manner, the longitudinal rod (19) is connected with a cross rod (20) in a sliding manner, a marking piece (21) for marking the paperboard in an extrusion manner is arranged on the cross rod (20) in a lifting manner, the sliding direction of the longitudinal rod (19) is along the conveying direction of the paperboard, and the sliding direction of the cross rod (20) is along the moving direction of the film roll (3); the cleaning device is characterized in that the support (2) is further provided with a cleaning device for cleaning the printing ink on the film roll (3), the cleaning device comprises a cleaning box (22) fixedly connected with the support (2), a lifting plate (23) arranged in the cleaning box (22) in a lifting manner and an auxiliary assembly for assisting cleaning, the cleaning box (22) is filled with cleaning agents, two side walls of the cleaning box (22) are respectively provided with a penetrating opening for the film to penetrate, and the penetrating openings are positioned above the liquid level of the cleaning agents in the cleaning box (22); the auxiliary assembly comprises a foam-rubber cushion (24) and rolling parts used for kneading the film, the foam-rubber cushion (24) is arranged on the bottom wall of the cleaning box (22), the foam-rubber cushion (24) is located under the liquid level of the cleaning agent, the rolling parts are arranged as round rollers (25), a plurality of round strips (26) are distributed on the outer wall of each round roller (25) at equal intervals, the length direction of each round strip (26) is along the length direction of each round roller (25), and the round rollers (25) are rotationally connected with the lifting plate (23).
2. The method for producing the super-hydrophobic composite corrugated paper box based on nano titanium dioxide, which is characterized by comprising the following steps of: the driving assembly comprises a double-end threaded rod (9), a sliding rod (10) and a driving motor (11), wherein the two sliding blocks (7) are respectively in spiral fit with the two ends of the double-end threaded rod (9), the double-end threaded rod (9) is rotationally connected with the adjusting plate (5), the sliding rod (10) is fixedly connected with the adjusting plate (5), the length direction of the sliding rod (10) is parallel to the length direction of the double-end threaded rod (9), the output end of the driving motor (11) is fixedly connected with one end of the double-end threaded rod (9), and the driving motor (11) is installed on the adjusting plate (5).
3. The method for producing the super-hydrophobic composite corrugated paper box based on nano titanium dioxide, which is characterized by comprising the following steps of: the winding mechanism comprises a winding roller (13), a traction roller (12) and a traction motor (14), wherein the winding roller (13) and the traction roller (12) are respectively positioned on two sides of the paperboard and are both rotationally connected with the support (2), two ends of the film roll (3) are respectively fixedly connected with the winding roller (13) and the peripheral wall of the traction roller (12), and the output end of the traction motor (14) is fixedly connected with the end part of the traction roller (12).
CN202310437958.6A 2023-04-20 2023-04-20 Production method of super-hydrophobic composite corrugated carton based on nano titanium dioxide Active CN116409009B (en)

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