Environment-friendly paper packaging barrel with embedded buckle

Abstract

The utility model discloses an environment-friendly paper packaging barrel with an embedded buckle, and belongs to the technical field of packaging containers. Which comprises a barrel body and a barrel cover, and is characterized in that a pair of buckle cavities is formed in the near middle of the barrel body in the height direction, and buckles are embedded in the buckle cavities respectively; a barrel body bottom plate supporting and positioning folded edge is folded and unfolded at the bottom of the barrel body towards the direction of a barrel body cavity, a barrel body bottom plate is supported and positioned on the barrel body bottom plate supporting and positioning folded edge, and a barrel body bottom plate moisture-proof film is combined on the surface of one side, back to the barrel body cavity, of the barrel body bottom plate; the upper edge of the barrel cover is folded inwards to form a barrel cover folding edge, the peripheral edge part of the barrel cover plate is fixed with the downward side of the barrel cover folding edge, a barrel cover plate moisture-proof film is combined on the upward side surface of the barrel cover plate, and the periphery of the barrel cover plate moisture-proof film extends to the upward side surface of the barrel cover folding edge. The method has the advantages that the requirements of mutual attaching and manual quick carrying are met; moisture is prevented from invading to protect the raw materials in the barrel body cavity; the use cost is reduced; and saving type and energy-saving type circular economy is embodied.

Description

Technical Field

[0001] This utility model belongs to the field of packaging container technology, specifically relating to an environmentally friendly paper packaging bucket with an embedded handle. Background Technology

[0002] As is known in the industry, many powdery raw materials with relatively low specific gravity, such as pigments and dyes, are usually first packaged in thin film bags like PVC, and then placed into paper packaging drums with a capacity or volume of 30-40L. The advantages of using paper packaging drums for secondary packaging include at least: improving compressive strength, preventing stacking deformation, isolating raw materials from external contamination, achieving lightweight packaging, moisture protection, and environmental friendliness, among others.

[0003] In recent years, the requirements for paper packaging drums have become increasingly stringent. For example, paper packaging drums used for exported products are required to meet ISTA3A transport tests, ASTM D642 stacking tests, and the EU EN13428 moisture-proof clauses, thus forcing manufacturers to improve the structure of traditional paper packaging drums. Typical examples of so-called traditional paper packaging drums include CN2915695Y (all-paper packaging drum), CN200957921Y (packaging drum), CN207107288U (an environmentally friendly paper packaging drum), CN205186710U (paper packaging drum), and CN222769901U (environmentally friendly paper packaging drum), etc. The drawbacks of paper packaging drums are not limited to the following: perhaps due to technical bias, it is believed that adding handles to the outer wall of the drum will interfere with neat stacking in the logistics process, such as increasing the space between adjacent drums and reducing the number of drums that can be stacked, thus increasing transportation costs. However, this brings about a trade-off, because the absence of handles will affect the speed of handling in certain situations. Furthermore, the lid and bottom of the drum are susceptible to moisture, but there are no effective measures to prevent moisture from penetrating the drum. Utility Model Content

[0004] The objective of this invention is to provide an environmentally friendly paper packaging barrel with embedded handles that can avoid interference between adjacent barrels in situations such as stacking, thus meeting the requirement of close proximity, while also facilitating quick manual handling and significantly improving the moisture protection effect of the lid and bottom.

[0005] The present invention achieves its objective by providing an environmentally friendly paper packaging barrel with embedded handles, comprising a barrel body and a lid that mates with the barrel body lid for opening and closing the barrel body cavity. The invention is characterized by a pair of handle cavities located near the center of the barrel body along its height direction. These cavities are positioned face-to-face, spaced 180° apart around the circumference of the barrel body, and each cavity contains a handle. A bottom plate supporting and positioning flange is horizontally folded around the bottom of the barrel body, facing the barrel body cavity. The barrel body's bottom plate is supported and positioned on the barrel body bottom plate support positioning folded edge. A barrel body bottom plate moisture-proof film is attached to the side surface of the barrel body bottom plate opposite to the barrel body cavity. The periphery of the barrel body bottom plate moisture-proof film extends to the side of the barrel body bottom plate support positioning folded edge opposite to the barrel body cavity. A barrel lid folded edge is folded inward around the upper edge of the barrel lid. The periphery of the barrel lid plate is fixed to the downward-facing side of the barrel lid folded edge. A barrel lid plate moisture-proof film is attached to the upward-facing side surface of the barrel lid plate. The periphery of the barrel lid plate moisture-proof film extends to the upward-facing side surface of the barrel lid folded edge.

[0006] In one embodiment of the present invention, a bucket mouth reinforcing folded edge is provided along the upper edge of the bucket body and in the direction of the circumference of the bucket body toward the bucket body cavity, and the cross-sectional shape of the bucket mouth reinforcing folded edge is n-shaped.

[0007] In another embodiment of this utility model, a barrel anti-deformation hoop is attached to the barrel body and located above the pair of handle cavities, surrounding the outer wall of the barrel body. When the barrel lid is fitted with the barrel body lid, the lower surface of the barrel lid contacts the upper surface of the barrel anti-deformation hoop. The handle includes a handle insert and a handle limiting flange. The handle insert fits into the handle cavity and extends into the barrel body cavity. The handle insert forms a finger insertion cavity. The handle limiting flange is formed around the outward-facing side of the handle insert and is in close contact with the outer wall of the barrel body.

[0008] In another embodiment of the present invention, a buckle insert is formed on the outer wall of each end of the buckle insert. The buckle insert is in close contact with the cavity wall of the barrel cavity corresponding to the buckle cavity, and the buckle insert is also connected to the buckle limiting flange edge. The buckle insert is C-shaped.

[0009] In another embodiment of this utility model, the handle insert and the handle limiting flange edge are formed by plastic molding to form an integral structure.

[0010] In another embodiment of this utility model, the four edges of the bottom plate of the barrel facing downwards and at the position corresponding to the support and positioning fold of the bottom plate of the barrel are fixed by an adhesive layer to the side of the support and positioning fold of the bottom plate of the barrel facing upwards; the four edges of the lid of the barrel facing upwards and at the position corresponding to the lid fold are fixed by an adhesive layer to the side of the lid fold facing downwards.

[0011] In a further embodiment of this utility model, the widths of the bottom plate support positioning fold and the lid fold are equal and each is 3-4 cm.

[0012] In a further embodiment of this utility model, the moisture-proof film on the bottom plate of the barrel and the moisture-proof film on the lid of the barrel are made of the same material and have the same weight.

[0013] In yet another embodiment of this utility model, the moisture-proof film on the bottom plate of the barrel and the moisture-proof film on the lid are both made of kraft paper with a biaxially oriented polypropylene film bonded to the outward-facing surface, and the basis weight of the kraft paper is 160-240 g / m². 2 The basis weight of biaxially oriented polypropylene film is 20-25 g / m³. 2 .

[0014] The technical effects of the present invention are as follows: A pair of handle cavities spaced 180° apart are provided in the middle of the barrel's height direction, with the handles embedded in these cavities. This avoids interference between adjacent barrels during stacking, ensuring close proximity and facilitating quick manual handling. Furthermore, the presence of a moisture-proof film on the bottom plate and a moisture-proof film on the lid effectively prevents moisture intrusion and protects the raw materials inside the barrel cavities. The ability to be reused reduces operating costs. Finally, the ability to be recycled after damage embodies the spirit of a resource-saving and circular economy. Attached Figure Description

[0015] Figure 1 This is a structural diagram of one embodiment of the present invention;

[0016] Figure 2 for Figure 1 Enlarged view of part A;

[0017] Figure 3 for Figure 1 The enlarged view of section B is shown. Detailed Implementation

[0018] Please see Figures 1 to 3The illustration shows a paper barrel 1 and a paper lid 2, which fits the barrel 1 and is used to cover or remove the cover of the barrel cavity 11. The illustration features a pair of handle cavities 12 located slightly above the center of the barrel 1 in the height direction. These handle cavities 12 are 180° apart and face each other around the circumference of the barrel 1, and each handle 121 is embedded in one of these cavities. A barrel bottom plate support and positioning flange 13 is folded horizontally around the bottom of the barrel 1, facing inwards towards the barrel cavity 11. The barrel bottom plate 14 supports and positions the barrel. On the bottom plate support and positioning folded edge 13, a bottom plate moisture-proof film 141 is attached to the side surface of the bottom plate 14 facing away from the aforementioned bottom cavity 11. The bottom plate moisture-proof film 141 extends around the bottom plate support and positioning folded edge 13 to the side facing away from the bottom cavity 11. A lid folded edge 21 is folded inward around the top edge of the lid 2 and around the lid 2. The lid plate 22 of the lid 2 is fixed to the downward-facing side of the lid folded edge 21. A lid plate moisture-proof film 221 is attached to the upward-facing side surface of the lid plate 22. The lid plate moisture-proof film 221 extends around the top edge surface of the lid folded edge 21.

[0019] Based on common sense, covering the aforementioned bucket lid 2 will protect the opening of the aforementioned bucket cavity 11, and vice versa.

[0020] A barrel opening reinforcing folded edge 15 is folded along the upper edge of the aforementioned barrel body 1 and in the direction of the circumference of the barrel body 1 toward the aforementioned barrel cavity 11. The cross-sectional shape of the barrel opening reinforcing folded edge 15 is n-shaped.

[0021] On the aforementioned barrel body 1, and above the aforementioned pair of handle cavities 12, a barrel anti-deformation hoop 16 is attached around the outer wall of the barrel body 1 by hot melt adhesive or other similar adhesive, which acts like a belt. The barrel anti-deformation hoop 16 is made of the same material as the barrel body 1. When the aforementioned barrel lid 2 is fitted onto the barrel body 1, the lower surface 23 of the barrel lid 2 contacts the upper surface 161 of the barrel anti-deformation hoop 16, that is, the two are closed. The aforementioned handle 121 includes a handle insert 1211 and a handle limiting flange 1212. The handle insert 1211 fits into the aforementioned handle cavity 12 and extends into the aforementioned barrel cavity 11. The handle insert 1211 forms a finger insertion cavity 12111. The handle limiting flange 1212 is formed around the outward side of the handle insert 1211 and is in close contact with the outer wall of the aforementioned barrel body 1.

[0022] Preferably, a handle insert 12112 is formed on the outer wall of each end of the aforementioned handle insert 1211. The handle insert 12112 is in close contact with the cavity wall of the aforementioned barrel cavity 11 at the position corresponding to the aforementioned handle cavity 12, and the handle insert 12112 is also connected to the aforementioned handle limiting flange edge 1212. Since the shape of the aforementioned handle insert 12112 is C-shaped, the handle insert 12112 can be a handle insert retaining ring.

[0023] The aforementioned handle insert 1211 and handle limiting flange 1212 are molded from plastic to form an integral structure.

[0024] The four edges of the aforementioned barrel base plate 14 facing downwards, and at positions corresponding to the aforementioned barrel base plate support and positioning fold 13, are fixed to the barrel base plate support and positioning fold 13 facing upwards by an adhesive layer; the four edges of the aforementioned barrel lid plate 22 facing upwards, and at positions corresponding to the aforementioned barrel lid fold 21, are fixed to the barrel lid fold 21 facing downwards by an adhesive layer. The aforementioned adhesive layer is such as a hot melt adhesive layer, but is not limited to a hot melt adhesive layer.

[0025] The widths of the aforementioned barrel bottom plate support positioning fold 13 and barrel lid fold 21 are equal and preferably 3-4 cm each; in this embodiment, it is 4 cm.

[0026] The materials and weights of the aforementioned moisture-proof membrane 141 on the bottom plate of the barrel and the moisture-proof membrane 221 on the lid of the barrel are the same.

[0027] The aforementioned moisture-proof film 141 on the bottom plate of the barrel and the aforementioned moisture-proof film 221 on the lid are both made of kraft paper with a biaxially oriented polypropylene film bonded to the outward-facing surface. The basis weight of the kraft paper is preferably 160-240 g / m². 2 The optimal value is 180-220 g / m³. 2 Ideally, it should be 200 g / m 2 In this embodiment, 200 g / m³ is selected. 2 The preferred basis weight of biaxially oriented polypropylene film is 20-25 g / m³. 2 The optimal value is 22 g / m 2 In this embodiment, 22 g / m 2 .

[0028] It is not limited to the method mentioned by the applicant in the background section above, where the raw materials are placed in an inner liner bag, such as a PVC film bag, and then the PVC film bag is placed inside the barrel cavity 11 and the barrel lid 2 is closed. Of course, sealing tape can also be wrapped around the mating area between the barrel lid 2 and the barrel anti-deformation hoop 16.

[0029] In summary, the technical solution provided by this invention makes up for the shortcomings of the prior art, successfully completes the invention task, and accurately realizes the technical effects described by the applicant in the above technical effects column.

Claims

1. An environment-friendly paper packaging barrel with embedded handle, comprising a barrel body (1) and a barrel cover (2) matched with the barrel body (1) cover for shielding or unshielding the opening of the barrel cavity (11) of the barrel body (1), characterized in that: A pair of handgrip cavities (12) are formed in the middle of the height direction of the barrel body (1), and the cavities are 180° apart from each other around the circumference of the barrel body (1) to form a face-to-face relationship, and each of the cavities is embedded with a handgrip (121); a barrel bottom supporting positioning flange (13) is folded horizontally around the circumference of the barrel body (1) towards the barrel cavity (11); the barrel bottom (14) of the barrel body (1) is supported and positioned on the barrel bottom supporting positioning flange (13); a barrel bottom moisture-proof film (141) is combined on the side surface of the barrel bottom (14) facing away from the barrel cavity (11), and the circumference of the barrel bottom moisture-proof film (141) extends to the side of the barrel bottom supporting positioning flange (13) facing away from the barrel cavity (11); a barrel cover flange (21) is folded inward around the circumference of the barrel cover (2) at the upper edge of the barrel cover (2); the peripheral edge of the barrel cover plate (22) of the barrel cover (2) is fixed to the side of the barrel cover flange (21) facing downward; a barrel cover plate moisture-proof film (221) is combined on the side surface of the barrel cover plate (22) facing upward, and the circumference of the barrel cover plate moisture-proof film (221) extends to the side surface of the barrel cover flange (21) facing upward.

2. The environment-friendly paper packaging barrel with embedded handgrip according to claim 1, characterized in that: A barrel mouth reinforcing folded flange (15) is folded around the circumference of the barrel body (1) at the upper edge of the barrel body (1) towards the barrel cavity (11), and the cross-sectional shape of the barrel mouth reinforcing folded flange (15) is in the shape of an n.

3. The environment-friendly paper packing barrel with embedded handgrip according to claim 1, characterized in that: A barrel deformation prevention hoop (16) is combined around the circumference of the outer wall of the barrel body (1) at a position above the pair of handgrip cavities (12) on the barrel body (1), and when the barrel cover (2) is coupled with the barrel body (1), the lower surface (23) of the barrel cover (2) contacts the upper surface (161) of the barrel deformation prevention hoop (16); the handgrip (121) comprises a handgrip insert (1211) and a handgrip limiting flange (1212), the handgrip insert (1211) is embedded with the handgrip cavity (12) and protrudes into the barrel cavity (11), and the handgrip insert (1211) comprises a finger insertion cavity (12111); the handgrip limiting flange (1212) is formed around the side of the handgrip insert (1211) facing outward and closely contacts the outer wall of the barrel body (1).

4. The environment-friendly paper packaging barrel with embedded handgrip according to claim 3, characterized in that: A handgrip insert clamping member (12112) is formed on the outer wall of each end of the handgrip insert (1211), and the handgrip insert clamping member (12112) closely contacts the cavity wall of the barrel cavity (11) at the position corresponding to the handgrip cavity (12), and the handgrip insert clamping member (12112) is connected with the handgrip limiting flange (1212), wherein the shape of the handgrip insert clamping member (12112) is in the shape of a C.

5. The environmentally friendly paper packing barrel with embedded handgrip according to claim 3 or 4, characterized in that: The handgrip insert (1211) and the handgrip limiting flange (1212) are integrally formed by plastic molding.

6. The environment-friendly paper packing barrel with embedded handgrip according to claim 1, characterized in that: The four peripheral edge portions of the downward side of the barrel bottom plate (14) and the position corresponding to the barrel bottom plate supporting positioning flange (13) are fixed by the adhesive layer and the upward side of the barrel bottom plate supporting positioning flange (13); the four peripheral edge portions of the upward side of the barrel cover plate (22) and the position corresponding to the barrel cover flange (21) are fixed by the adhesive layer and the downward side of the barrel cover flange (21).

7. The environmentally friendly paper packing barrel with embedded handgrip according to claim 6, characterized in that: The width of the barrel bottom plate supporting positioning flange (13) and the barrel cover flange (21) is equal to each other and each is 3-4 cm.

8. The environmentally friendly paper packing barrel with embedded handgrip according to claim 1, characterized in that: The material and gram weight of the barrel bottom plate moisture-proof film (141) and the barrel cover plate moisture-proof film (221) are the same.

9. The environmentally friendly paper packing barrel with embedded handgrip according to claim 8, characterized in that: The barrel bottom plate moisture-proof film (141) and the barrel cover plate moisture-proof film (221) are both kraft paper with a double-stretched polypropylene film combined on the outer side surface, the kraft paper has a gram weight of 160-240g / m 2 , and the double-stretched polypropylene film has a gram weight of 20-25g / m 2 .

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