CN113578592B - Preparation method of paper-plastic packaging structure and spraying tool - Google Patents
Preparation method of paper-plastic packaging structure and spraying tool Download PDFInfo
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- CN113578592B CN113578592B CN202110860917.9A CN202110860917A CN113578592B CN 113578592 B CN113578592 B CN 113578592B CN 202110860917 A CN202110860917 A CN 202110860917A CN 113578592 B CN113578592 B CN 113578592B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
- B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
- B05B13/0221—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work characterised by the means for moving or conveying the objects or other work, e.g. conveyor belts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
- B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
- B05B13/0221—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work characterised by the means for moving or conveying the objects or other work, e.g. conveyor belts
- B05B13/0228—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work characterised by the means for moving or conveying the objects or other work, e.g. conveyor belts the movement of the objects being rotative
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Abstract
The invention discloses a preparation method of a paper-plastic packaging structure and a spraying tool, wherein the preparation method of the paper-plastic packaging structure comprises the following steps: providing a body and paint, wherein a cavity for accommodating an electronic product is formed on one side of the body, the body is provided with a film coating area, and the film coating area comprises the inner wall surface of the cavity; forming a coating layer on the coating region using the coating; and curing the coating layer to form a protective film layer. According to the invention, the coating layer is formed on the film covering region by using the coating, and the coating layer is cured to form the protective film layer, so that the inner wall surface can be protected, when an electronic product is rubbed with a paper-plastic packaging structure, paper scraps cannot fall off from the inner wall surface due to the protection of the protective film layer, and the problem of product surface dirt or function failure caused by the falling of the paper scraps is solved.
Description
Technical Field
The invention relates to the technical field of product packaging, in particular to a preparation method of a paper-plastic packaging structure and a spraying tool.
Background
Because paper pulp molding (paper molding for short) has the advantages of environmental protection, low price and the like, nowadays, paper molding products are widely applied to package linings or outer packages of electronic products such as VR/AR equipment, headsets, smart home products and the like. Taking a paper-plastic liner as an example, the existing paper-plastic liner is generally prepared by a dry pressing or wet pressing method, and then the surface of the paper-plastic liner is subjected to calendaring treatment. Electronic products are generally placed directly in the cavity formed by the paper-plastic liner.
During transportation, vibration and impact are often accompanied. During the period, friction occurs between the electronic product and the paper-plastic lining, so that paper scraps are easy to fall off from the paper-plastic lining. The wastepaper that drops can't discharge in the packing carton, can cause electronic product surface dirty, even, if the wastepaper enters into electronic product inside, still cause product function failure easily, influence user experience.
Disclosure of Invention
The invention mainly aims to provide a preparation method of a paper-plastic packaging structure and a spraying tool, and aims to solve the problem that scraps are easy to fall off in the conventional paper-plastic packaging structure.
In order to achieve the purpose, the invention provides a preparation method of a paper-plastic packaging structure, which comprises the following steps:
providing a body and paint, wherein a cavity for accommodating an electronic product is formed on one side of the body, the body is provided with a film coating area, and the film coating area comprises the inner wall surface of the cavity;
forming a coating layer on the coating region using the coating;
and curing the coating layer to form a protective film layer to obtain the paper-plastic packaging structure.
Optionally, the step of forming a coating layer on the film covering region using the coating material includes:
providing spraying equipment, wherein the spraying equipment is provided with a spraying station and a spray head arranged towards the spraying station;
placing the body on the spraying station;
and spraying the coating to the film covering area.
Optionally, the body has a first side and a second side which are oppositely arranged, one side of the body where the cavity is formed is the first side, and the film covering region includes the first side and the second side;
the step of spraying the coating to the film covering area comprises the following steps:
spraying the coating to a first side of the body;
and overturning the body, and spraying the coating to the second side of the body.
Optionally, the spraying stations include a first station and a second station, the coating is sprayed to the first side of the body when the body is located on the first station, and the coating is sprayed to the second side of the body when the body is located on the second station.
Optionally, the central axis direction of the body located on the spraying station is a first direction;
the spraying direction of shower nozzle with the first direction is the contained angle setting, the contained angle is greater than 0 and is less than 90, the body is located when on the spraying station, can wind first direction sets up with rotating.
Optionally, the included angle is 45 degrees, and the injection pressure of the nozzle is 0.8-1.2 MPa.
Optionally, the coating comprises a water-resistant coating or a scratch-resistant coating.
Optionally, the coating is
73。
In addition, the invention further provides a spraying tool used in the preparation method of the paper-plastic packaging structure, and the spraying tool comprises:
the inner ring and the outer ring are concentrically arranged, the inner ring can be rotatably arranged on the inner ring wall of the outer ring around the central shaft of the inner ring, and the outer ring can be rotatably arranged around the radial direction of the inner ring so as to drive the inner ring to turn over; and (c) a second step of,
and the plurality of clamping pieces are arranged on the inner ring wall of the inner ring at intervals along the circumferential direction of the inner ring and used for clamping the paper-plastic packaging structure.
Optionally, the clamping member includes a first clamping portion and a second clamping portion, which are oppositely disposed, the first clamping portion is disposed on the inner annular wall of the inner ring, and the second clamping portion is movably disposed on the first clamping portion in a direction close to or away from the first clamping portion; and/or the presence of a gas in the atmosphere,
the outer ring wall of the outer ring is provided with a rotating shaft, a gear is sleeved on the rotating shaft and used for being matched with the insection part of the driving mechanism, and the outer ring is driven to rotate by the driving mechanism.
According to the technical scheme, the coating is formed on the film covering area by using the coating, the coating is solidified to form the protective film layer, the protective film layer at least covers the inner wall surface of the cavity, so that the inner wall surface can be protected, when an electronic product is rubbed with a paper-plastic packaging structure, paper scraps cannot fall off from the inner wall surface due to the protection of the protective film layer, and the problem that the surface of the product is dirty or the function is invalid due to the falling of the paper scraps is solved.
Drawings
In order to more clearly illustrate the embodiments or technical solutions of the present invention, the drawings used in the embodiments or technical solutions of the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic flow chart of an embodiment of a method for manufacturing a paper-plastic packaging structure according to the present invention;
FIG. 2 is a schematic flow chart of another embodiment of the method for manufacturing a paper-plastic packaging structure according to the present invention;
FIG. 3 is a schematic diagram showing a positional relationship between a body and a nozzle at a spraying station in the manufacturing method of the paper-plastic packaging structure shown in FIG. 2;
FIG. 4 is a schematic flow chart illustrating a method for manufacturing a paper-plastic packaging structure according to another embodiment of the present invention;
fig. 5 is a schematic structural diagram of an embodiment of a spraying tool provided in the present invention.
The reference numbers illustrate:
the implementation, functional features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indication is changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
Taking a paper-plastic liner as an example, the existing paper-plastic liner is generally prepared by a dry pressing or wet pressing method, and then the surface of the paper-plastic liner is subjected to calendaring treatment. Electronic products are generally placed directly in the cavity formed by the paper-plastic liner.
During transportation, vibration and impact are often accompanied. During the period, friction occurs between the electronic product and the paper-plastic lining, so that paper scraps are easy to fall off from the paper-plastic lining. The paper scraps that drop can cause the surface of the electronic product to be dirty because the paper scraps can not be discharged in the packaging box, and even if the paper scraps enter the electronic product, the product function is easy to fail, and the customer experience is influenced. If bagging or film covering treatment is adopted for electronic products, although surface dirt and functional failure can be avoided, the cost of packaging is increased at the same time; in addition, the consumer needs to additionally increase bag-removing operation, which affects the customer experience, and the removed packaging bag also causes pollution to the environment.
In view of this, the invention provides a method for manufacturing a paper-plastic packaging structure, which can be used for manufacturing the paper-plastic packaging structure. Fig. 1 to 4 show an embodiment of a method for manufacturing a paper-plastic packaging structure according to the present invention. The paper-plastic packaging structure manufactured by the method comprises a body 200 and a protective film layer, wherein the body 200 is provided with a cavity for accommodating the electronic product, the protective film layer is arranged on the body 200 and at least covers the inner wall surface of the cavity, and the protective film layer is used for limiting the inner wall surface from desquamation under the action of external force. The electronic product can be a mobile terminal, a headset, VR/AR equipment, an intelligent household product and the like; the paper-plastic packaging structure can be used as a packaging lining, placed in an outer packaging box and also integrally formed with the outer packaging box.
Referring to fig. 1, the preparation method of the paper-plastic packaging structure includes the following steps:
step S10, providing a body 200 and a paint, wherein a cavity for accommodating an electronic product is formed on one side of the body 200, the body 200 has a film covering region, and the film covering region includes an inner wall surface of the cavity.
In this embodiment, the body 200 is a pulp molded product formed by dry-pressing or wet-pressing pulp and then calendering the pulp. The body 200 is formed with a cavity for accommodating the electronic product, and the specific structure thereof can be designed according to actual needs. In some embodiments, the middle portion of the body 200 is arched toward one side of the body 200, so as to form a protrusion on one side of the body 200 and a groove on the other side of the body 200, and the groove forms the cavity. Specifically, the body 200 has a first side and a second side which are oppositely arranged, the first side is a first side, and the second side is a second side; the middle part of body 200 to the first side of body 200 arches the setting, thereby the first side of body 200 forms the arch the second side of body 200 forms the recess, the recess constitutes the appearance chamber, this kind of structural design, and it is direct at the slotted mode of setting of second side to compare, because first side is only middle part arch, and need not make planar structure with first side, and the material that needs to consume is still less, and the cost is lower, and when preparing, only need the suppression can the shaping, and manufacturing process is simpler. For the structure of the body 200 described in this embodiment, the first side of the body 200 is the outer surface of the body 200, and the second side is the inner surface of the body 200.
The coating material is a coating material capable of forming a film and having a certain protective effect after the film is formed, and for example, the coating material may be a water-soluble coating material in which a water-soluble resin is used as a film-forming material and an auxiliary agent is added, wherein the auxiliary agent may be at least one of polyvinyl alcohol, a modified substance of polyvinyl alcohol, a water-soluble alkyd resin, a water-soluble epoxy resin, and an inorganic high-molecular water-based resin. In one embodiment, the coating includes a waterproof coating or a scratch-resistant coating, which not only can prevent paper scraps from falling off, but also has a waterproof/scratch-resistant effect. In particular, the coating may be
73 (paint type), and the like.
And S20, forming a coating layer on the film covering area by using the coating.
And S30, curing the coating layer to form a protective film layer to obtain the paper-plastic packaging structure.
In this embodiment, the coating is coated on the surface of the film-coating region of the body 200 to be covered with the protective film layer, so as to form a coating on the surface, and then the coating is cured and formed into the protective film layer, so as to obtain the paper-plastic packaging structure. In this packaging structure is moulded to paper, the protection rete covers the internal face that holds the chamber at least to can play the guard action to the internal face, when electronic product and paper mould packaging structure take place the friction, benefit from the protection of protection rete, the internal face can not drop the wastepaper, has solved the product surface that leads to because of the wastepaper drops dirty or the problem of functional failure, and owing to need not additionally to carry out bagging-off or tectorial membrane to the product, help reducing packaging cost, improve user experience.
In step S20, there are various ways to form the coating layer, and a painting or spraying way may be adopted. In some embodiments, the step S20 specifically includes:
step S21, providing spraying equipment, wherein the spraying equipment is provided with a spraying station and a spray head 300 arranged towards the spraying station;
step S22, placing the body 200 on the spraying station;
and S23, spraying the coating to the film coating area.
In this embodiment, the body 200 is placed on the spraying station first, so that the nozzle 300 faces the coating area, and then the coating is sprayed toward the coating area, and then the coating layer is formed on the coating area.
Specifically, use the tectorial membrane area as the internal face that holds the chamber as the example, because the tectorial membrane area is including the diapire that holds the chamber and being annular lateral wall, consequently, when actual operation, can rotate the spraying around the central line that holds the chamber through ordering about shower nozzle 300, also can fix the shower nozzle, and the rethread orders about body 200 and realizes comprehensive spraying around the central line rotation that holds the chamber, can also set up a plurality of shower nozzles 300 along the circumference that holds the chamber, and the internal face fixed point spraying that the chamber was held to the orientation.
The side of the body 200 where the cavity is formed is set as the first side. In some embodiments, the film-covered region includes a first side and a second side. When the film-covered region includes a first side and a second side, referring to fig. 2, step S23 may be implemented as follows:
step S231 of spraying the paint to the first side of the body 200;
step S232, turning over the body 200, and spraying the paint to the second side of the body 200.
In this embodiment, firstly, the body 200 is placed on the spraying station, the spraying head 300 is used to spray the coating to the first side of the body 200, so that the coating forms a first coating on the first side of the body 200, then the body 200 is turned over by 180 degrees, so that the second side of the body 200 is opposite to the spraying head 300, and then the spraying head 300 is used to spray the coating to the second side, so that the coating forms a second coating on the second side of the body 200, namely, the spraying to the body 200 is completed. Thus, the surface of the body 200 is completely coated with a coating, and after baking, a protective film layer completely coating the body 200 is formed on the surface of the body 200.
Further, the spraying stations include a first station and a second station, when the body 200 is located at the first station, the coating is sprayed to the first side of the body 200, and when the body 200 is located at the second station, the coating is sprayed to the second side of the body 200. Specifically, the spraying equipment further comprises a conveying mechanism for conveying the body 200 from the first station to the second station, so that the spraying process of the body 200 can be streamlined. Referring to fig. 4, in the present embodiment, step S20 may be implemented as follows:
step S201, providing a spraying device, where the spraying device includes a conveying mechanism and a nozzle 300, and has a first station and a second station sequentially arranged along a conveying direction.
One or more spray heads 300 may be provided; when one spray head 300 is provided, the spray head 300 can be arranged between the first station and the second station in a reciprocating manner; when the spray head 300 is provided in plurality, at least one spray head 300 is correspondingly provided at each of the first station and the second station.
Step S202, placing the body 200 on a conveying mechanism, enabling the first side of the body 200 to face to the side where the spray head 300 is located, and spraying the coating to the first side of the body 200 through the spray head 300 when the body 200 is conveyed to a first station;
step S203, after the body 200 leaves the first station, the body 200 is turned over by 180 degrees so that the second side of the body 200 faces the side where the spray head 300 is located, and when the body 200 is conveyed to the second station, the coating is sprayed to the first side of the body 200 through the spray head 300.
This embodiment is through setting up two stations along direction of transfer for the spraying process of body 200 can pipeline work, thereby has improved paper and plastic packaging structure's production efficiency.
In addition, referring to fig. 3, the central axis direction of the main body 200 located on the spraying station is set as the first direction 10, specifically, the axial direction passing through the center of the main body 200 and perpendicular to the first side of the main body 200 is the central axis direction of the main body 200, and if the first side of the main body 200 located on the spraying station is disposed upward, the first direction 10 is the vertical direction.
Because the main body 200 is provided with a cavity at one side, if the nozzle 300 sprays paint to the cavity in a direction perpendicular to the bottom of the cavity, the sidewall of the cavity cannot be uniformly coated. In view of this, in the embodiment, the spraying direction of the spraying head 300 is arranged at an included angle α with the first direction 10, the included angle α is greater than 0 ° and smaller than 90 °, so that when the main body 200 is located at the spraying station, the coating material is sprayed to the first side/the second side at an inclined angle. Meanwhile, in this embodiment, when the body 200 is located on the spraying station, the body may be rotationally disposed around the first direction 10, so that the spraying of the first side/the second side of the body 200 may be achieved by rotating the body 200, and the coating may be uniformly distributed on the surface of the body 200. Preferably, in this embodiment, the included angle is 45 °, and the spray pressure of the spray head is 0.8 to 1.2MPa, and within this parameter range, not only can the sprayed coating be ensured to sufficiently cover the first side/the second side, but also in the case that the body 200 located at the spraying station can rotate freely, the spray pressure of 0.8 to 1.2MPa is enough to drive the body 200 to rotate at a suitable speed, so that the coating layer can be uniformly formed everywhere in the coating region.
It should be noted that the rotation of the main body 200 can be driven by the impact force carried during paint spraying, or can be driven by other driving mechanisms.
In addition, in step S30, various ways of curing the coating layer are implemented, such as baking and drying, or UV irradiation curing. In one embodiment, the coating layer is cured by baking and drying, wherein the baking temperature and time can be adjusted according to the selected coating characteristics, so as to
73 by way of example, the baking temperature is 80 ℃ and the baking is carried outBaking time is 10min.
In addition, in order to make the above manufacturing method easier to implement, the present invention further provides a spraying tool 100, and the spraying tool 100 can be used in the manufacturing method of the paper-plastic packaging structure as described above. Fig. 5 shows a specific embodiment of the spray coating tool 100 according to the present invention.
Referring to fig. 5, the spraying tool 100 includes an inner ring 1 and an outer ring 2 which are concentrically arranged, and a plurality of clamping pieces 3, the inner ring 1 is rotatably installed on an inner ring wall of the outer ring 2 around a central axis of the inner ring, the outer ring 2 is rotatably installed around a radial direction of the inner ring 1 to drive the inner ring 1 to turn over, and the plurality of clamping pieces 3 are arranged on the inner ring wall of the inner ring 1 at intervals along a circumferential direction of the inner ring 1 to clamp the paper-plastic packaging structure.
The spraying tool 100 provided by the invention can be at least one part of the above mentioned spraying equipment, when the spraying tool is used for preparing a paper-plastic packaging structure, the body 200 is fixed at the center of the inner ring 1 through a plurality of clamping pieces 3, and as the center of the inner ring 1 defines a ring hole with openings at two ends, the first side and the second side of the body 200 fixed at the center of the inner ring 1 can be exposed at two sides of the inner ring 1; because the inner ring 1 can rotate around the central axis thereof (i.e. the axis passing through the center of the inner ring 1 and perpendicular to the end surface of the inner ring 1), when the spraying tool 100 provided with the body 200 is placed on a spraying station, the body 200 and the inner ring 1 can be driven to rotate by the impact force of the coating sprayed at an inclined angle. Specifically, taking the embodiment shown in fig. 4 as an example, one spray head 300 is correspondingly arranged above the first station and the second station, an included angle α between the spraying direction of each spray head 300 and the first direction 10 is set to be about 45 degrees, and the spraying air pressure of each spray head 300 is set to be about 1 MPa. During spraying, the body 200 is fixed among the clamping pieces 3, then the spraying tool 100 provided with the body 200 is placed on the conveying mechanism, the first side of the body 200 faces upwards, when the spraying tool 100 provided with the body 200 is conveyed to a first station, the spray head 300 corresponding to the first station sprays paint towards the first side, the paint impact force drives the body 200 to automatically rotate, and therefore, all parts of the first side of the body 200 can be sprayed comprehensively through the automatic rotation of the body 200; after the spraying of the first side is finished, the conveying mechanism continues to convey the spraying tool 100, and during the period, the outer ring 1 is driven to rotate around the inner ring 1 in the radial direction, so that the body 200 installed in the inner ring 1 is driven to rotate synchronously until the second side of the body 200 faces upwards; after the body 200 is transferred to the second station along with the spraying tool 100, the spray head 300 corresponding to the second station sprays the coating toward the second side, and the impact force of the coating drives the body 200 to rotate automatically, so that all parts on the second side of the body 200 can be sprayed comprehensively, the efficiency is high, and the cost is saved.
The clamping piece 3 comprises a first clamping part 31 and a second clamping part 32 which are oppositely arranged, the first clamping part 31 is arranged on the inner annular wall of the inner ring 1, and the second clamping part 32 is movably arranged on the first clamping part 31 in the direction close to or far away from the first clamping part 31; specifically, referring to fig. 5, in the present embodiment, when the body 200 is installed, the bolt 6 is firstly loosened, then the body 200 is placed in the clamping space formed between the first clamping portion 31 and the second clamping portion 32, and then the bolt 6 is tightened so that the second clamping portion 32 is close to the first clamping portion 31, the clamping space is reduced, and the body 200 is fixed between the two.
In addition, a rotating shaft 4 is arranged on the outer ring wall of the outer ring 2, a gear 5 is sleeved on the rotating shaft 4, and the gear 5 is used for being matched with the insection part of the driving mechanism so as to drive the outer ring 2 to rotate under the driving of the driving mechanism. In this way, the outer ring 2 can be rotated in the radial direction of the inner ring 1 by the transmission action between the thread portions and the gear 5 under the driving of the driving mechanism. The driving mechanism can be a motor, a cylinder and the like, and the insection part can be a gear arranged on an output shaft of the motor or a rack connected with the output shaft of the cylinder and the like.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all equivalent structural changes made by using the contents of the specification and drawings, or any other related technical fields, which are directly or indirectly applied to the present invention, are included in the scope of the present invention.
Claims (7)
1. The preparation method of the paper-plastic packaging structure is characterized by comprising the following steps of:
providing a body and paint, wherein a cavity for accommodating an electronic product is formed on one side of the body, the body is provided with a film coating area, and the film coating area comprises the inner wall surface of the cavity;
providing spraying equipment, wherein the spraying equipment is provided with a spraying station and a spray head arranged towards the spraying station;
placing the body on the spraying station;
spraying the coating to the film covering area to form a coating layer on the film covering area;
curing the coating layer to form a protective film layer to obtain a paper-plastic packaging structure;
the direction of the central axis of the body on the spraying station is a first direction;
the spraying direction of the spray head and the first direction form an included angle, the included angle is 45 degrees, the spraying pressure of the spray head is 0.8 to 1.2MPa, and the body can be rotationally arranged around the first direction when positioned on the spraying station;
the spraying tool comprises an inner ring, an outer ring and a plurality of clamping pieces, wherein the inner ring and the outer ring are concentrically arranged, the inner ring can be rotatably arranged on the inner ring wall of the outer ring around the central axis of the inner ring, the outer ring can be rotatably arranged around the inner ring in the radial direction so as to drive the inner ring to turn over, and the plurality of clamping pieces are arranged on the inner ring wall of the inner ring at intervals along the circumferential direction of the inner ring and are used for clamping the paper-plastic packaging structure; when being used for paper to mould packaging structure's preparation, will the body is fixed including the ring center through a plurality of holders, because the inner ring can wind its central axis rotation, when the spraying frock that will be equipped with the body was arranged in on the spraying station, the coating that is the inclination and sprays and come can order about body and inner ring rotation from the impact force in area.
2. The method for preparing a paper-plastic packaging structure according to claim 1, wherein the body has a first side and a second side which are oppositely arranged, the side of the body where the cavity is formed is the first side, and the film-covered area comprises the first side and the second side;
the step of spraying the coating material to the film covering area comprises the following steps:
spraying the coating to a first side of the body;
and overturning the body, and spraying the coating to the second side of the body.
3. A method of making a paper-plastic packaging structure as recited in claim 2, wherein said spraying station comprises a first station and a second station, said coating being sprayed onto a first side of said body when said body is positioned on said first station, and said coating being sprayed onto a second side of said body when said body is positioned on said second station.
4. A method of making a paper-plastic packaging structure according to claim 1, wherein said coating comprises a water-resistant coating or a scratch-resistant coating.
5. The method for preparing a paper-plastic packaging structure as claimed in claim 4, wherein the coating is Nomar 73.
6. A spraying tool, which is used in the method for manufacturing a paper-plastic packaging structure according to any one of claims 1 to 5, and comprises:
the inner ring and the outer ring are concentrically arranged, the inner ring can be rotatably arranged on the inner ring wall of the outer ring around the central shaft of the inner ring, and the outer ring can be rotatably arranged around the radial direction of the inner ring so as to drive the inner ring to turn over; and the number of the first and second groups,
and the plurality of clamping pieces are arranged on the inner ring wall of the inner ring at intervals along the circumferential direction of the inner ring and are used for clamping the paper-plastic packaging structure.
7. The spraying tool of claim 6, wherein the clamping member includes a first clamping portion and a second clamping portion that are disposed opposite to each other, the first clamping portion is disposed on an inner annular wall of the inner ring, and the second clamping portion is movably disposed on the first clamping portion in a direction approaching or departing from the first clamping portion; and/or the presence of a gas in the gas,
the outer ring wall of the outer ring is provided with a rotating shaft, a gear is sleeved on the rotating shaft and used for being matched with the insection part of the driving mechanism, and the outer ring is driven to rotate by the driving mechanism.
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| CN202110860917.9A CN113578592B (en) | 2021-07-28 | 2021-07-28 | Preparation method of paper-plastic packaging structure and spraying tool |
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| CN202110860917.9A CN113578592B (en) | 2021-07-28 | 2021-07-28 | Preparation method of paper-plastic packaging structure and spraying tool |
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| CN113578592B true CN113578592B (en) | 2023-02-28 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN112757690B (en) * | 2020-12-31 | 2023-03-07 | 济南晨彩包装印刷有限公司 | Film laminating method for reducing paperboard warping |
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