Spraying preparation method for high barrier container

Abstract

The present invention relates to the technical field of containers and discloses a spraying preparation method for high-barrier containers, comprising the following preparation steps: 1) placing the container on a spraying station; 2) using an inner nozzle to spray a barrier glue liquid on the inner ring side wall to form an inner film layer; 3) using an outer nozzle to spray a barrier glue liquid on the outer ring side wall to form an outer film layer; 4) baking and solidifying the inner film layer and the outer film layer; placing the container on a spraying station, using the inner nozzle to spray the barrier glue liquid on the inner ring side wall to form an inner film layer, using the outer nozzle to spray the barrier glue liquid on the outer ring side wall to form an outer film layer, baking and solidifying the inner film layer and the outer film layer to form an integral structure with the surrounding wall; the surrounding wall is clamped by the inner film layer and the outer film layer, and can play a high barrier role against external gas and moisture, so that the material placed in the container is highly isolated from the outside world, and plays a moisture-proof and sealing role.

Description

Technical Field

[0001] The patent of this invention relates to the technical field of containers, specifically, to a spraying preparation method for high-barrier containers. Background Art

[0002] A container is a device that is used to hold materials, fluids, etc. and is mainly composed of a shell. Commonly used containers include cups and pipes. The cup can hold materials and fluids, etc., while the pipe serves as a container for the flow of materials and fluids.

[0003] At present, for some materials with high sealing requirements, they need to maintain high sealing in the container, that is, the container needs to have high barrier properties, including high gas barrier properties and high moisture barrier properties, etc., to prevent gas and moisture from entering the interior of the container and causing contamination to the materials.

[0004] In the prior art, materials placed in containers often require better sealing properties, that is, the container needs to have high barrier properties to protect the materials from moisture and seal them. However, existing containers often have poor barrier properties, resulting in poor sealing of the materials. Summary of the Invention

[0005] The purpose of the present invention is to provide a spraying preparation method for high-barrier containers, aiming to solve the problem of poor barrier properties of containers in the prior art.

[0006] The present invention is achieved by a spraying method for preparing a high barrier container, comprising the following preparation steps:

[0007] 1) Place a container on a spraying station, wherein the container has a surrounding wall arranged around the container, wherein the surrounding wall surrounds and forms an inner cavity, wherein the inner side of the surrounding wall has an inner ring side wall, and the outer periphery of the surrounding wall has an outer ring side wall;

[0008] 2) Using an inner nozzle placed in the inner cavity, spraying barrier glue on the inner ring side wall, the barrier glue forms an inner film layer on the inner ring side wall;

[0009] 3) Using an external nozzle to spray a barrier adhesive on the outer periphery of the surrounding wall to form an outer film layer on the outer ring side wall;

[0010] 4) placing the container in a baking station to bake and solidify the inner film layer and the outer film layer.

[0011] Furthermore, the spraying station is provided with a rotating table, and in the construction step 1), the container is placed on the rotating table;

[0012] In the construction step 2), when the inner nozzle is spraying the barrier glue in the inner cavity, the inner nozzle moves along the circumference of the container and simultaneously moves along the axial direction of the container.

[0013] Furthermore, in the preparation step 2), the direction in which the inner nozzle moves in the inner cavity along the circumference of the container is different from the rotation direction of the turntable.

[0014] Furthermore, a longitudinally arranged external air pipe is provided in the middle of the rotating table, the top of the external air pipe is closed, and a plurality of longitudinally arranged external air blowing grooves are provided on the sidewall of the external air pipe. The plurality of external air blowing grooves are arranged at intervals along the circumference of the external air pipe, and the external air blowing grooves are arranged along the axial direction of the external air pipe;

[0015] In the preparation step 2), when the inner nozzle sprays the barrier glue in the inner cavity, the outer air pipe blows air toward the inner ring side wall through multiple outer blowing grooves to evenly spread the inner film layer on the inner ring side wall.

[0016] Furthermore, a rotatably arranged inner air pipe is sleeved in the outer air pipe, the top of the inner air pipe is closed, and a plurality of inner air blowing grooves are provided in the side wall of the inner air pipe. The plurality of inner air blowing grooves are arranged at intervals along the circumference of the inner air pipe, and the inner air blowing grooves are arranged along the longitudinal extension of the inner air pipe;

[0017] An annular air cavity is formed between the inner air tube and the outer air tube, the bottom of the annular air cavity is closed, and the top of the annular air cavity is closed;

[0018] In the preparation step 2), when the inner nozzle is spraying the barrier glue in the inner cavity, the inner air pipe blows air into the annular air cavity through the inner blowing groove, and the gas in the annular air cavity is blown toward the inner ring side wall through the outer blowing groove, so that the inner film layer on the inner ring side wall is evenly spread out.

[0019] Furthermore, the outer air pipe is arranged to rotate, and the rotation direction of the outer air pipe is different from that of the inner air pipe; in the preparation step 2), when the inner nozzle sprays the barrier glue in the inner cavity, the inner air pipe and the outer air pipe rotate synchronously to change the direction of the gas blown out by the outer blowing groove.

[0020] Furthermore, in the preparation step 2), when the inner air tube and the outer air tube rotate synchronously, the rotation speed of the inner air tube is lower than the rotation speed of the outer air tube.

[0021] Furthermore, the outer nozzle has a glue spraying surface arranged toward the outer ring side wall, and the glue spraying surface is arranged in an arc shape along the circumference of the container to form an arc-shaped surface, and a plurality of outer nozzles are provided on the arc-shaped surface, and the outer nozzles are distributed throughout the entire glue spraying surface;

[0022] In the preparation step 3), when the outer nozzle is placed on the outer periphery of the surrounding wall and the glue spraying surface is less than a set distance from the outer ring side wall, the outer nozzle moves along the circumferential and axial directions of the surrounding wall to spray the barrier glue on the outer ring side wall.

[0023] Furthermore, the glue spraying surface is covered with a fine mesh layer, the fine mesh layer has a plurality of fine mesh holes, the plurality of fine mesh holes facilitate the arrangement of the entire fine mesh layer, and the diameter of the fine mesh holes is smaller than the diameter of the outer nozzle;

[0024] There is a glue spraying gap between the fine mesh layer and the glue spraying surface. In the preparation step 3), the barrier glue sprayed from the multiple external nozzles passes through the multiple fine mesh holes of the fine mesh layer to form a mist glue, and the mist glue is sprayed on the side wall of the outer ring.

[0025] Furthermore, the outer periphery of the fine mesh layer is elastically connected to the outer periphery of the glue spraying surface via an elastic ring. In the preparation step 3), when the barrier glue sprayed from the plurality of external nozzles passes through the fine mesh layer, the fine mesh layer elastically reciprocates along the circumferential direction.

[0026] Compared with the prior art, the spraying preparation method of the high-barrier container provided by the present invention places the container on a spraying station, uses an inner nozzle to spray a barrier glue liquid on the inner ring side wall to form an inner film layer, uses an outer nozzle to spray a barrier glue liquid on the outer ring side wall to form an outer film layer, bakes and solidifies the inner and outer film layers to form an integrated structure with the surrounding wall; the surrounding wall is clamped by the inner film layer and the outer film layer, and can play a high barrier role against external gas and moisture, so that the material placed in the container is highly isolated from the outside world, and plays a moisture-proof and sealing role. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic cross-sectional view of the high barrier container provided by the present invention;

[0028] Figure 2 is a schematic cross-sectional view of the external trachea provided by the present invention;

[0029] Figure 3 is a schematic cross-sectional view of the inner trachea provided by the present invention;

[0030] Figure 4 It is a cross-sectional schematic diagram of the cooperation between the inner trachea and the outer trachea provided by the present invention;

[0031] Figure 5 It is a schematic main view of the external nozzle provided by the present invention. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0033] The implementation of the present invention is described in detail below with reference to specific embodiments.

[0034] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", etc. indicate the orientation or position relationship, they are based on the orientation or position relationship shown in the drawings. This is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0035] Reference Figure 1-5 The figure shows a preferred embodiment of the present invention.

[0036] The high-barrier container 100 can be used to contain materials, which can be solids, fluids, gases, etc.

[0037] The spraying preparation method of a high barrier container comprises the following preparation steps:

[0038] 1) Place the container 100 on the spraying station. The container 100 has a surrounding wall 101 arranged around the container. The surrounding wall 101 surrounds and forms an inner cavity. The inner side of the surrounding wall 101 has an inner ring side wall, and the outer periphery of the surrounding wall 101 has an outer ring side wall.

[0039] 2) Using an inner nozzle placed in the inner cavity, spraying barrier glue on the inner ring side wall, the barrier glue forms an inner film layer 102 on the inner ring side wall;

[0040] 3) Using the outer nozzle 400, a barrier glue liquid is sprayed on the outer periphery of the surrounding wall 101 and the outer ring side wall, and the barrier glue liquid forms an outer film layer 103 on the outer ring side wall;

[0041] 4) Place the container 100 in a baking station to bake and solidify the inner film layer 102 and the outer film layer 103.

[0042] The spraying preparation method of the high-barrier container provided above is to place the container 100 on the spraying station, use the inner nozzle to spray the barrier glue on the inner ring side wall to form the inner film layer 102, use the outer nozzle 400 to spray the barrier glue on the outer ring side wall to form the outer film layer 103, bake and solidify the inner film layer 102 and the outer film layer 103 to form an integrated structure with the surrounding wall 101; the surrounding wall 101 is clamped by the inner film layer 102 and the outer film layer 103, and can play a high barrier role against external gas and moisture, so that the material placed in the container 100 is highly isolated from the outside world, and plays a moisture-proof and sealing role.

[0043] In this embodiment, a rotating table is provided on the spraying station. In the construction step 1), the container 100 is placed on the rotating table. In the construction step 2), the inner nozzle moves along the circumference of the container 100 while spraying the barrier glue in the inner cavity, and the inner nozzle moves synchronously along the axial direction of the container 100.

[0044] The container 100 is placed on a rotating table and rotates synchronously with the rotating table. At the same time, the inner nozzle sprays the barrier glue liquid through circumferential movement and axial movement, so that the barrier glue liquid can be spread over the entire inner ring side wall.

[0045] In this embodiment, in preparation step 2), the inner spray head moves in a direction along the circumference of the container 100 within the inner cavity that is different from the rotation direction of the turntable. This circumferential movement of the inner spray head differs from the rotation direction of the turntable, and the staggered movement between the inner spray head and the container 100 increases the spraying speed and prevents the barrier adhesive layer from being too thick in certain areas.

[0046] In this embodiment, a longitudinally arranged external air pipe 200 is provided in the middle of the rotating table, the top of the external air pipe 200 is closed, and the side wall of the external air pipe 200 is provided with a plurality of longitudinally arranged external air blowing grooves 201. The plurality of external air blowing grooves 201 are arranged at intervals along the circumference of the external air pipe 200, and the external air blowing grooves 201 are arranged along the axial extension of the external air pipe 200.

[0047] In preparation step 2), while the inner nozzle is spraying the barrier glue in the inner cavity, the outer air pipe 200 blows air toward the inner ring side wall through the multiple outer blowing slots 201 to evenly spread the inner film layer 102 on the inner ring side wall.

[0048] By providing the external air pipe 200, during the process of spraying the barrier glue, the gas blown out by the external blowing groove 201 is simultaneously used to break up the sprayed barrier glue into mist, and the inner film layer 102 on the inner ring side wall is vertically and evenly arranged.

[0049] In this embodiment, a rotatably arranged inner air tube 300 is sleeved in the outer air tube 200, the top of the inner air tube 300 is closed, and a plurality of inner air blowing grooves 301 are provided in the side wall of the inner air tube 300. The plurality of inner air blowing grooves 301 are arranged at intervals along the circumference of the inner air tube 300, and the inner air blowing grooves 301 are arranged along the longitudinal extension of the inner air tube 300.

[0050] An annular air cavity is formed between the inner air tube 300 and the outer air tube 200. The bottom and top of the annular air cavity are sealed. In preparation step 2), while the inner nozzle sprays the barrier adhesive into the inner cavity, the inner air tube 300 blows air into the annular air cavity through the inner blowing groove 301. The air in the annular air cavity is blown toward the inner ring sidewall through the outer blowing groove 201, thereby evenly spreading the inner film layer 102 on the inner ring sidewall.

[0051] During the rotation of the inner air pipe 300, multiple states of separation, misalignment and overlap are formed between the inner air blowing groove 301 and the outer air blowing groove 201. During these multiple states, the direction of the gas blown out by the outer air blowing groove 201 can be changed, so as to achieve the purpose of changing the blowing angle of the gas blown out by the outer air blowing groove 201 along the circumferential direction, and can achieve a wider range of blowing, and can make the inner film layer 102 spread out and evenly arranged in the circumferential direction.

[0052] In this embodiment, the outer air pipe 200 is arranged in a rotating manner, and the rotation direction of the outer air pipe 200 is different from that of the inner air pipe 300; in preparation step 2), when the inner nozzle sprays the barrier glue in the inner cavity, the inner air pipe 300 and the outer air pipe 200 rotate synchronously to change the direction of the gas blown out by the outer blowing groove 201.

[0053] The outer air pipe 200 rotates synchronously with the inner air pipe 300, so that the direction of the gas blown out of the outer blowing groove 201 can be changed faster, the barrier glue sprayed out by the inner nozzle can be better misted, and the inner film layer 102 on the inner ring side wall can be better spread circumferentially.

[0054] In this embodiment, during preparation step 2), when the inner air tube 300 and the outer air tube 200 rotate synchronously, the rotation speed of the inner air tube 300 is slower than that of the outer air tube 200. The differential circumferential rotation between the outer air tube 200 and the inner air tube 300 can cause the air blown from the outer blowing slot 201 to change direction more frequently.

[0055] In this embodiment, the outer nozzle 400 has a glue spraying surface 401 arranged toward the outer ring side wall. Along the circumference of the container 100, the glue spraying surface 401 is arranged in an arc shape to form an arc surface. A plurality of external nozzles are provided on the arc surface, and the external nozzles are distributed throughout the entire glue spraying surface 401.

[0056] In preparation step 3), when the outer nozzle 400 is placed on the outer periphery of the surrounding wall 101 and the spraying surface 401 is less than the set distance from the outer ring side wall, the outer nozzle 400 moves along the circumferential and axial directions of the surrounding wall 101 to spray the barrier glue on the outer ring side wall.

[0057] The glue spraying surface 401 is set to an arc shape, which can match the shape of the outer ring side wall, and can achieve a better effect of spraying the barrier glue liquid onto the outer ring side wall.

[0058] In this embodiment, the glue spraying surface 401 is covered with a fine mesh layer 404, which has multiple fine mesh holes. The multiple fine mesh holes facilitate the arrangement of the entire fine mesh layer 404, and the diameter of the fine mesh holes is smaller than the diameter of the outer nozzle.

[0059] There is a glue spraying gap 403 between the fine mesh layer 404 and the glue spraying surface 401. In the preparation step 3), the barrier glue sprayed from multiple external nozzles passes through the multiple fine mesh holes of the fine mesh layer 404 to form a mist glue, which is sprayed on the outer ring side wall.

[0060] The periphery of the fine mesh layer 404 is elastically connected to the periphery of the glue spraying surface 401 through an elastic ring. In the preparation step 3), when the barrier glue sprayed from multiple external nozzles passes through the fine mesh layer 404, the fine mesh layer 404 elastically vibrates back and forth along the circumferential direction, thereby achieving a wide range of spraying of the non-converted mist glue.

[0061] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A spraying method for preparing a high barrier container, characterized in that: The method comprises the following preparation steps: 1) Place a container on a spraying station, wherein the container has a surrounding wall arranged around the container, wherein the surrounding wall surrounds and forms an inner cavity, wherein the inner side of the surrounding wall has an inner ring side wall, and the outer periphery of the surrounding wall has an outer ring side wall; 2) Using an inner nozzle placed in the inner cavity, spraying barrier glue on the inner ring side wall, the barrier glue forms an inner film layer on the inner ring side wall; 3) Using an external nozzle to spray barrier glue on the outer periphery of the surrounding wall, the barrier glue forms an outer film layer on the outer ring side wall; 4) placing the container in a baking station to bake and solidify the inner film layer and the outer film layer; The spraying station is provided with a rotating table, and in the preparation step 1), the container is placed on the rotating table; In the preparation step 2), during the process of spraying the barrier glue solution in the inner cavity, the inner nozzle moves along the circumference of the container and simultaneously moves along the axial direction of the container; In the preparation step 2), the direction in which the inner nozzle moves in the inner cavity along the circumference of the container is different from the rotation direction of the rotating table; A longitudinally arranged external air pipe is provided in the middle of the rotating table. The top of the external air pipe is closed. A plurality of longitudinally arranged external air blowing grooves are provided on the sidewall of the external air pipe. The plurality of external air blowing grooves are arranged at intervals along the circumference of the external air pipe and extend axially along the external air pipe. In the preparation step 2), when the inner nozzle sprays the barrier glue in the inner cavity, the outer air pipe blows air toward the inner ring side wall through the multiple outer blowing grooves to evenly spread the inner film layer on the inner ring side wall; The outer air tube is sleeved with a rotatably arranged inner air tube, the top of the inner air tube is closed, and a plurality of inner air blowing grooves are provided in the side wall of the inner air tube. The plurality of inner air blowing grooves are arranged at intervals along the circumference of the inner air tube and are arranged along the longitudinal extension of the inner air tube; An annular air cavity is formed between the inner air tube and the outer air tube, the bottom of the annular air cavity is closed, and the top of the annular air cavity is closed; In the preparation step 2), when the inner nozzle sprays the barrier glue in the inner cavity, the inner air pipe blows air into the annular air cavity through the inner blowing groove, and the gas in the annular air cavity is blown toward the inner ring side wall through the outer blowing groove, so that the inner film layer on the inner ring side wall is evenly spread out; The outer air pipe is arranged to rotate, and the rotation direction of the outer air pipe is different from that of the inner air pipe; in the preparation step 2), when the inner nozzle sprays the barrier glue in the inner cavity, the inner air pipe and the outer air pipe rotate synchronously to change the direction of the gas blown out from the outer blowing groove.

2. The spraying method for preparing a high barrier container according to claim 1, characterized in that: In the preparation step 2), when the inner air tube and the outer air tube rotate synchronously, the rotation speed of the inner air tube is lower than the rotation speed of the outer air tube.

3. The spraying method for preparing a high barrier container according to any one of claims 1 to 2, characterized in that: The outer nozzle has a glue spraying surface arranged toward the outer ring side wall. The glue spraying surface is arranged in an arc shape along the circumference of the container to form an arc-shaped surface. The arc-shaped surface is provided with a plurality of outer nozzles, and the outer nozzles are distributed throughout the glue spraying surface. In the preparation step 3), when the outer nozzle is placed on the outer periphery of the surrounding wall and the glue spraying surface is less than a set distance from the outer ring side wall, the outer nozzle moves along the circumferential and axial directions of the surrounding wall to spray the barrier glue on the outer ring side wall.

4. The spraying method for preparing a high barrier container according to claim 3, characterized in that: The glue spraying surface is covered with a fine mesh layer, wherein the fine mesh layer has a plurality of fine mesh holes, and the plurality of fine mesh holes facilitate the arrangement of the entire fine mesh layer, and the diameter of the fine mesh holes is smaller than the diameter of the outer nozzle; There is a glue spraying gap between the fine mesh layer and the glue spraying surface. In the preparation step 3), the barrier glue sprayed from the multiple external nozzles passes through the multiple fine mesh holes of the fine mesh layer to form a mist glue, which is sprayed on the outer ring side wall.

5. The spraying preparation method of a high barrier container according to claim 4, characterized in that: The periphery of the fine mesh layer is elastically connected to the periphery of the glue spraying surface via an elastic ring. In the preparation step 3), when the barrier glue sprayed from the plurality of external nozzles passes through the fine mesh layer, the fine mesh layer elastically vibrates back and forth along the circumferential direction.

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