Novel flat electric appliance paper tube packaging structure

Abstract

The utility model discloses a novel flat electric appliance paper tube packaging structure, and relates to the technical field of electric appliance packaging. The novel flat electric appliance paper tube packaging structure comprises a concave hollow paper tube and a runway type hollow paper tube, the concave hollow paper tube comprises an outer paper tube blank and an inner groove part, and the inner groove part is integrally formed in the outer wall of one side of the outer paper tube blank and distributed in the axial direction of the outer paper tube blank; the two groups of runway type hollow paper tubes are arranged on the inner side of the outer paper tube blank, and each runway type hollow paper tube comprises an inner paper tube blank and a fillet part. According to the novel paper tube packaging structure for the flat electric appliance, a packaged product can be well wrapped, the product can be conveniently protected, the novel paper tube packaging structure has certain bearing capacity, the product has good safety in the processes of stacking, transporting, loading and unloading and the like, the novel paper tube packaging structure for the flat electric appliance has good impact resistance, and under the conditions of advancing, retreating and emergency braking in the transporting process, the product is not prone to falling off. Or when falling off from a certain high altitude, the packaging material can absorb corresponding impact energy, so that the product is protected from being damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical appliance packaging, and particularly relates to a novel paper tube packaging structure for flat electrical appliances. Background Art

[0002] Previously, the packaging of flat electrical appliances used foam molding materials. With the improvement of environmental protection requirements, especially in European and American countries where the use of foam packaging materials has been strictly prohibited, the use of degradable paper packaging materials has been widely developed and applied.

[0003] The purpose of developing the novel paper tube packaging material for flat electrical appliances is to replace the foam material packaging and meet the environmental protection requirements of being degradable. This is a revolutionary measure, and its highlights are as follows:

[0004] 1. After being used, the paper packaging can be recycled and reused, meeting the environmental protection requirements;

[0005] 2. The paper packaging structure is made into a hollow structure, which has certain elastic properties and can absorb a certain amount of impact energy, and has stronger impact resistance than the foam material packaging;

[0006] 3. Through the design of the paper tube packaging structure, the development of forming equipment, and the optimization of forming processes, mass production can be carried out to meet the market demand.

[0007] At present, some of the paper tube packaging structures for flat electrical appliances on the market are either relatively thin and have poor protection performance, or have high costs and complex processes; for this reason, a novel paper tube packaging structure for flat electrical appliances is provided to solve the above problems. Content of the Utility Model

[0008] The purpose of the utility model is to provide a novel paper tube packaging structure for flat electrical appliances, which can solve the problems raised in the above background art.

[0009] To achieve the above purpose, the utility model provides the following technical solution: A novel paper tube packaging structure for flat electrical appliances, comprising a concave hollow paper tube and a runway-shaped hollow paper tube. The concave hollow paper tube includes an outer paper tube blank and an inner groove part. The inner groove part is integrally formed on one outer wall of the outer paper tube blank and is distributed along the axial direction of the outer paper tube blank. The number of the runway-shaped hollow paper tubes is two groups and they are arranged inside the outer paper tube blank. The runway-shaped hollow paper tube includes an inner paper tube blank and a rounded corner part. The two groups of inner paper tube blanks are inserted side by side inside the concave hollow paper tube and are in contact with the inner wall of the concave hollow paper tube. The rounded corner part is integrally formed at the four corners of the inner paper tube blank.

[0010] Preferably, the outer paper tube blank is the same length as the inner paper tube blank, and the inner paper tube blank is located below the inner groove part; the cross-sectional area of the inner groove part is not less than one-fourth of the cross-sectional area of the concave hollow paper tube, and the cross-sectional area of the inner paper tube blank is equal to the cross-sectional area of the inner groove part; the thickness of the concave hollow paper tube is 1-1.5 mm, and the thickness of the concave hollow paper tube is equal to that of the runway-shaped hollow paper tube.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] 1. It can have good wrapping property for the products to be packaged, facilitating the protection of the products.

[0013] 2. It has a certain load-bearing capacity, enabling the products to have good safety during processes such as stacking, transportation, loading and unloading.

[0014] 3. It has good impact resistance performance. When the products are moving forward, backward, making an emergency brake during transportation, or falling from a certain height, the packaging material itself can absorb the corresponding impact energy to protect the products from being damaged.

[0015] 4. It can ensure mass production in terms of production equipment and technology to meet the market demand. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present utility model will be further described below in conjunction with the drawings and embodiments:

[0017] Figure 1 : Schematic diagram of the concave hollow paper tube;

[0018] Figure 2 : Schematic diagram of the runway-shaped hollow paper tube;

[0019] Figure 3 : Figure 1 and Figure 2 Schematic diagram of the combined flat electrical appliance packaging paper tube;

[0020] Figure 4 : Schematic diagram after the flat electrical appliance is packaged;

[0021] Figure 5 : Schematic diagram of the static forming principle of the concave hollow paper tube;

[0022] Figure 6 : Schematic diagram of the dynamic forming principle of the concave hollow paper tube.

[0023] Reference numerals: 1. Concave hollow paper tube; 11. Outer paper tube blank; 12. Inner groove part; 2. Runway-shaped hollow paper tube; 21. Inner paper tube blank; 22. Rounded corner part. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] In the description of the present utility model, it should be understood that for the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc., it is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0025] Please refer to Figures 1-6 , the present utility model provides a technical solution: a new flat electrical appliance paper tube packaging structure, including a concave hollow paper tube 1 and a runway-shaped hollow paper tube 2. The concave hollow paper tube 1 includes an outer paper tube blank 11 and an inner groove portion 12. The inner groove portion 12 is integrally formed at one side outer wall of the outer paper tube blank 11 and is distributed along the axial direction of the outer paper tube blank 11. The number of the runway-shaped hollow paper tubes 2 is two groups and they are arranged inside the outer paper tube blank 11. The runway-shaped hollow paper tube 2 includes an inner paper tube blank 21 and a rounded corner portion 22. The two groups of inner paper tube blanks 21 are inserted side by side inside the concave hollow paper tube 1 and are in contact with the inner wall of the concave hollow paper tube 1. The rounded corner portion 22 is integrally formed at the four corners of the inner paper tube blank 21.

[0026] Wherein, the outer paper tube blank 11 and the inner paper tube blank 21 are of the same length, and the inner paper tube blank 21 is located below the inner groove portion 12; the cross-sectional area of the inner groove portion 12 is not less than one-fourth of the cross-sectional area of the concave hollow paper tube 1, and the cross-sectional area of the inner paper tube blank 21 is equal to the cross-sectional area of the inner groove portion 12; the thickness of the concave hollow paper tube 1 is 1 - 1.5 mm, and the thickness of the concave hollow paper tube 1 and the runway-shaped hollow paper tube 2 is equal.

[0027] For the new flat electrical appliance paper tube packaging, we choose an inner hollow concave structure. See the concave hollow paper tube (1) in the attached drawings for details.

[0028] 1. Choose a hollow concave structure, and the concave part reflects the wrapping property for carrying the flat electrical appliance.

[0029] 2. Choose to be inner hollow, which means there is a certain buffer space for the product under the state of dynamic impact, and a certain amount of impact energy can be absorbed, playing a role in protecting the product.

[0030] 3. In order to protect the vertical bearing capacity of the packaging and enable the product to be stacked to a certain storage height, two runway-shaped hollow paper tubes are designed in this case. See the attached Figure 3 . Fix them inside the lower space of the concave structure. See the attached Figure 3 .

[0031] 4. To ensure the performance of the above-mentioned packaging paper tubes, ① in terms of material selection, we use kraft paper with good toughness and compressive resistance, and cooperate with some A-grade (or B-grade) core paper with good tensile and compressive resistance for forming. ② In terms of thickness, we will control it within the range of 1 to 1.5 mm. When it is too thick, the bearing capacity will be improved, but the elasticity and the performance of absorbing impact energy after being impacted will be significantly reduced. A balance point should be found between the two.

[0032] The situation of the flat electrical appliance and the flat electrical appliance after being packaged is shown in the appendix Figure 4 .

[0033] 5. The forming process adopted by the concave packaging paper tubes on the current market is divided into two steps. The first step is to first produce matching circular paper tubes; the second step adopts a static extrusion forming process, as detailed in the appendix Figure 5 . The inner mold of this forming process needs to be heated to a certain temperature to prevent rebound at the groove after forming. The disadvantage of this forming process is that the setting time is relatively long, generally about 2 to 3 minutes, and the production efficiency is low, making it difficult to meet the market demand.

[0034] To improve the production efficiency, our company has adopted a dynamic forming process. The specific method is also to first produce matching circular paper tubes, and then carry out dynamic forming. On the one hand, the paper tube is made to move longitudinally, and on the other hand, the paper tube is made to move radially towards the inside of the groove. To prevent rebound at the groove part, some grooves are made on the plane at the rear section of the mold, so that a small part of the paper is pressed into the groove during the final forming stage, forming a reinforcing rib to prevent rebound at the groove part, as detailed in the appendix Figure 6 .

[0035] The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art in the said technical field, various changes can also be made without departing from the gist of the present invention.

Claims

1. A novel flat electrical appliance paper tube packaging structure, characterized in that, Including: A concave hollow paper tube (1) and a runway-shaped hollow paper tube (2). The concave hollow paper tube (1) includes an outer paper tube blank (11) and an inner groove part (12). The inner groove part (12) is integrally formed at one outer wall side of the outer paper tube blank (11) and is distributed along the axial direction of the outer paper tube blank (11). The number of the runway-shaped hollow paper tubes (2) is two groups and they are arranged inside the outer paper tube blank (11). The runway-shaped hollow paper tube (2) includes an inner paper tube blank (21) and a rounded corner part (22). The two groups of inner paper tube blanks (21) are inserted side by side inside the concave hollow paper tube (1) and are in contact with the inner wall of the concave hollow paper tube (1). The rounded corner part (22) is integrally formed at the four corners of the inner paper tube blank (21).

2. The novel flat electrical appliance paper tube packaging structure according to claim 1, wherein: The outer paper tube blank (11) is of the same length as the inner paper tube blank (21), and the inner paper tube blank (21) is located below the inner groove part (12).

3. A novel flat electrical appliance paper tube packaging structure according to claim 2, characterized in that: The cross-sectional area of the inner groove part (12) is not less than one-fourth of the cross-sectional area of the concave hollow paper tube (1), and the cross-sectional area of the inner paper tube blank (21) is equal to the cross-sectional area of the inner groove part (12).

4. A novel flat electrical appliance paper tube packaging structure according to claim 3, characterized in that: The thickness of the concave hollow paper tube (1) is 1 - 1.5 mm, and the thickness of the concave hollow paper tube (1) is equal to the thickness of the runway-shaped hollow paper tube (2).

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