A corner wrapper, corner guard and corner wrapping tool for a packaging box

Abstract

The application provides a packaging box corner packer, a corner guard and a corner packaging tool, comprising a packaging box corner packer and a corner guard used by the packer, and further comprising a packaging tool formed by the two, wherein the corner guard is buckled at the corner of the packaging box to protect the corner and improve the packaging strength, thereby avoiding cracking and deformation during transportation. In addition, in order to realize the quick installation of the protective corner on the packaging box, the corner packer is used, which is provided with a vacuum suction cup to realize the grabbing of the corner guard, and is further provided with a hot melt device to dissolve the hot melt glue on the corner guard, so that the corner guard can produce a soluble glue during repeated grabbing of the packer, and the corner guard can be quickly fitted and fixed on the corner of the packaging box, thereby the corner guard can be quickly fixed on the packaging box, and the packaging efficiency is improved during continuous batch operation, and the packaging cost is further reduced.

Description

Technical Field

[0001] This invention relates to the field of packaging equipment technology, specifically to a corner packer, corner guard, and corner packaging tool. Background Technology

[0002] Paper boxes are used for packaging goods and are characterized by low production costs, commonly used in logistics. With the increasing volume of logistics in recent years, the number of boxes used in transportation has also increased significantly. Furthermore, due to the fixed-point turnover and distribution of materials, traditional paper boxes often experience corner cracking, leading to damage or loss of the contents. Currently, to prevent corner cracking, multiple layers of tape are usually pasted or bound to the corners of the box. While this effectively prevents cracking, the box is still prone to deformation, which can also damage the contents, and the time-consuming operation further increases product costs.

[0003] Chinese invention patent, publication number CN109665174B, patent title: A packaging box with edge protection, mainly uses a middle plate 400 and a butterfly plate 300 to wrap and protect the edges 102 of the packaging box, thereby preventing damage during transportation. However, the middle plate 400 and the butterfly plate 300 are two-piece structures, which need to be connected into one piece during installation, and there are many parts, resulting in low installation efficiency and relatively high packaging costs. To achieve edge protection for the packaging box and considering the above shortcomings, a packaging box edge protector is provided, along with an edge guard plate adapted to the protector. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to solve the problems of inconvenient installation of existing corner protection components for packaging boxes and low packaging efficiency.

[0005] The technical solution adopted by this invention to solve its technical problem is:

[0006] A corner packer for packaging boxes is provided, including a corner arm, which includes three corner plates, wherein the corner plates are bent plates, one end of the three corner plates are connected and the inner side of the bent corner plates can be fitted to the corner corresponding to any apex corner of a rectangular packaging box;

[0007] A vacuum suction cup and a heat fusion device are respectively installed at the bent end of each corner plate, wherein the heat fusion device is located on one side of the vacuum suction cup. A handle is provided on the outer side of the connecting end of the three corner plates. A positioning element is provided on the inner side of the connecting end of the three corner plates, and a positioning end is provided facing the inner side of the connecting end of the three corner plates.

[0008] Preferably, the hot melt machine includes a housing mounted on the bent end of the corner plate, a hot melt head telescopically mounted inside the housing, and an elastic element for the hot melt head to extend outward from the housing between the rear end of the hot melt head and the housing.

[0009] Preferably, the housing is fixed to the outside of the bent end of the corner plate by screws, with a certain gap between the screws and the housing in the radial direction, and a spring is directly provided between the screws and the housing in the circumferential direction.

[0010] Preferably, the positioning end is a circular hole structure formed at the end of the positioning member.

[0011] Preferably, the positioning end is a triangular conical hole structure opened at the end of the positioning member, wherein the edges of the conical hole are arranged perpendicular to each other.

[0012] Preferably, the positioning element is screwed to the connecting ends of the three corner plates.

[0013] Preferably, the handle has an axial through hole structure, and the rear end of the positioning member has a screwing end, which is provided corresponding to the through hole.

[0014] Preferably, a connecting plate is also included, with one end of each of the three corner plates mounted on the front end of the connecting plate to connect one end of the three corner plates, and the handle is mounted on the rear end of the connecting plate.

[0015] In addition, a corner guard plate is provided, which includes three corner plates, wherein the corner plates are bent plates, one end of the three corner plates are connected and the inner side of the three corner plates can be snapped to the corner corresponding to any corner of the rectangular packaging box, and the outer side of the bend can be corresponding to the corner plate and can press against the vacuum suction cup.

[0016] Each of the prism plates has a waist hole at its bent end that corresponds to the hot melt machine. An adhesive strip is fixed to the inside of the bent end, wherein the adhesive strip completely covers the waist hole, and hot melt adhesive is provided on the side of the adhesive strip that covers the waist hole.

[0017] Finally, a corner packaging tool for packaging boxes is also provided, including the aforementioned packer and the aforementioned corner guard.

[0018] The beneficial effects of this invention are that it utilizes corner protectors fixed to the edges of packaging boxes to protect the edges, thus improving the packaging box's resistance to deformation and damage. Furthermore, a packaging device is used to quickly install the corner protectors onto the packaging box. The packaging device is equipped with a corner arm, with a positioning element on its inner side for quick positioning with the corner protector. A vacuum suction cup is provided on the corner arm for gripping the corner protector, and a hot melt device is also provided on the corner arm to melt the hot melt adhesive on the corner protector. Thus, repeated gripping by the packaging device generates an adhesive molten adhesive on the corner protector, quickly fitting and fixing the corner protector to the corners of the packaging box. Therefore, it can quickly fix the corner protector to the packaging box, thereby improving packaging efficiency and further reducing packaging costs in continuous batch operations.

[0019] In addition, the corner guards are made of cardboard or plastic sheet into a single structure, which has the advantages of simple structure, light weight and low cost. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the outer view of the packaging box corner packer provided in the embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the inner side view of the packaging box corner packer provided in the embodiment of the present invention;

[0023] Figure 3 This is a schematic diagram of the full cross-sectional structure of the corner packaging device for packaging boxes provided in this embodiment of the invention;

[0024] Figure 4 yes Figure 3 A magnified schematic diagram of the structure at point A;

[0025] Figure 5 This is a schematic diagram of the first type of structure at the front end of the positioning component in the packaging.

[0026] Figure 6 This is a schematic diagram of the second structure of the front end of the positioning component in the packaging;

[0027] Figure 7 This is a schematic diagram of the rear end structure of the positioning component in the packaging.

[0028] Figure 8This is a schematic diagram of the outer side view of the corner guard plate of the packaging box provided in the embodiment of the present invention;

[0029] Figure 9 This is a schematic diagram of the inner side view of the corner guard plate of the packaging box provided in the embodiment of the present invention;

[0030] Figure 10 This is a structural diagram showing the stacking of multiple corner guards;

[0031] Figure 11 This is a schematic diagram of the outer view structure when the packaging and corner guards are used together;

[0032] Figure 12 This is a schematic diagram of the internal view structure when the packaging and the corner guard are used together;

[0033] Figure 13 yes Figure 12 A magnified schematic diagram of the structure at point B;

[0034] Figure 14 This is the intended use of the packaging provided in the embodiments of the present invention;

[0035] In the diagram: 1-Angle arm, 1.1-Angle plate, 2-Connecting angle plate, 3-Handle, 4-Heat melter, 4.1-Heat melt head, 4.2-House, 4.3-Elastic element, 4.4-Spring, 5-Vacuum suction cup, 6-Positioning element, 6.1-Positioning end, 6.2-Tightening end, a-Angle guard plate, a1-Angle plate, a11-Waist hole, a12-Rubber strip. Detailed Implementation

[0036] The above-described solution will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and not for limiting the scope of the invention. The implementation conditions used in the embodiments may be further adjusted according to the conditions of specific manufacturers, and the implementation conditions not specified are generally those in routine experiments.

[0037] In one specific embodiment, a corner protector for packaging boxes is provided for installing corner protectors on the corners of packaging boxes.

[0038] Specifically, it includes a corner arm 1, which in turn includes three corner plates 1.1. In this example, the corner plates 1.1 are made of bent plates, and one end of the three corner plates 1.1 are connected together. Specifically, this can be done by screw splicing or welding. After connection, the inner bent side of the three corner plates 1.1 can be fitted and set to match the corner of any vertices of the rectangular packaging box. This can be understood as the three corner plates 1.1 being arranged along the three-dimensional coordinate axis, so that the corner plates 1.1 can be set to correspond to the corner of the packaging box.

[0039] In this example, to facilitate the handling and use of the packaging unit, a handle 3 is provided on the outer side of the connecting ends of the three corner plates 1.1 for hand gripping; in this example, the handle 3 is located on the center line of the angled arm 1. To further facilitate the loading and unloading of the three corner plates 1.1, a connecting corner plate 2 is also included. One end of each of the three corner plates 1.1 is installed on the front end of the connecting corner plate 2, connecting one end of the three corner plates 1.1, and the handle 3 is installed on the rear end of the connecting corner plate 2. The reason for using the connecting corner plate 2 is that the length of the corner plates 1.1 will vary depending on the size of the packaging box. When using it, different corner plates 1.1 can be replaced to accommodate different sizes of packaging box shells, so only the corner plates 1.1 and the connecting corner plate 2 need to be loaded and unloaded.

[0040] In this example, to realize the use of the corner protection parts of the packaging box, that is, to be able to grasp the corner protection parts, a vacuum suction cup 5 is also included. By connecting to the vacuum generator and controlling it through the solenoid valve, the vacuum suction cup 5 can generate negative pressure to adsorb the corner protection parts, or release the vacuum to release the corner protection parts.

[0041] In this example, the corner protectors are installed on the corners of the packaging box by hot-melt bonding using a packaging device. A hot melt device 4 is then installed on the bent end of the corner plate 1.1, with the hot melt device 4 placed on one side of the vacuum suction cup 5.

[0042] Based on this, in this example, to achieve the positioning of the corner plate 1.1 and the corner guard plate, and to ensure that the vacuum suction cup 5 can adsorb the corner guard and the hot melter 4 can accurately correspond to the hot melt area of ​​the corner guard, a positioning element 6 is provided on the inner side of the connecting end of the three corner plates 1.1, and a positioning end 6.1 is provided on the inner side facing the connecting end of the three corner plates 1.1. In this example, it is preferable that the positioning element 6 can be screwed to the connecting end of the three corner plates 1.1, thereby facilitating the installation, removal and adjustment of the positioning element 6.

[0043] In addition, the positioning end of the positioning component can ensure that the vacuum suction cup can quickly grasp the five pairs of corner protection components.

[0044] In addition, to achieve compatibility with the aforementioned packaging, this application also provides a corner protector, which in one specific embodiment is a corner guard plate a, with the following specific structure:

[0045] It should be noted beforehand that since the corner guard plate a is used in conjunction with the corner arm 1, its general structure is similar to that of the corner arm 1. Specifically, the corner guard plate a includes three ridge plates a1, which are also bent plates. One end of the three ridge plates a1 is connected so that the inner side of the bend of the three ridge plates a1 can be engaged with the corner of any apex of the rectangular packaging box. After engagement, it can protect the corner of the packaging box. The outer side of the bend can be engaged with the corner plate 1.1 and can press against the vacuum suction cup 5. The vacuum suction cup 5 can be attached to each ridge plate a1, thereby enabling the packaging machine to grasp the corner guard plate a.

[0046] Based on this, to ensure the corner protector a is fixedly installed on the corner of the packaging box, each corner protector a1 has a waist hole a11 at its bent end that corresponds to the hot melt dispenser 4. An adhesive strip a12 is fixed to the inside of the bent end, completely covering the waist hole a11. Hot melt adhesive is also provided on the opposite side of the adhesive strip a12 that covers the waist hole a11. Thus, the waist hole a11 allows the hot melt dispenser 4 to contact the hot melt adhesive and melt it, causing it to solidify on the packaging box.

[0047] In use, since the corner guard plate a is a consumable part, there are multiple pieces, and due to its structure, they can be stacked (see Figure 10). Then, by holding the handle, the corner arm 1 is fastened to the outside of the corner guard plate a. At this time, the positioning end 6.1 of the positioning member 6 will abut against the top corner of the corner guard plate a (see Figure 10). Figure 13 As shown), the positioning element 6 can maintain a certain positional relationship between the corner arm 1 and the corner guard plate a. For example, the corner plate a1 and the corner plate 1.1 are set parallel to each other and maintain a certain distance. This distance and position should ensure that the vacuum suction cup 5 is adsorbed on the corner plate 1.1 and that the hot melt device 4 is set to correspond to the waist hole a11. It should be noted that the waist hole a11 is larger than the size of the hot melt device 4, so that the hot melt device 4 and the waist hole a11 can be matched more easily. At this time, the vacuum suction cup 5 adsorbs the corner plate 1.1, and the hot melt device 4 heats and passes through the waist hole a11 to abut against the adhesive strip a12, so that the hot melt adhesive on its back melts. It should be noted that the hot melt adhesive is 0.5-1.2mm thick and can be melted quickly. At the same time, the packaging device is used to fasten the corner guard plate a to any corner of the packaging box and press it with appropriate force (refer to...). Figure 14 Then, the vacuum suction cup 5 comes into contact with the vacuum, and hot melt adhesive is used to fix the corner protector a to the corners of the packaging to protect the packaging box. The repeated gripping of the packaging device generates an adhesive molten adhesive on the corner protector a, allowing it to be quickly fitted and fixed to the corners of the packaging box. This avoids the inefficiency caused by repeatedly wrapping with tape. Furthermore, the corner protector a can be made of cardboard or plastic sheet into a single integrated structure, making it simple, lightweight, and low-cost.

[0048] In summary, to ensure that the hot melt device 4 can fully adhere to the adhesive strip, it is preferable to use a floating configuration for compensation. Specifically, the hot melt device 4 includes a housing 4.2 mounted on the bent end of the corner plate 1.1. A hot melt head 4.1 is telescopically mounted inside the housing 4.2, and an elastic element 4.3 is installed between the rear end of the hot melt head 4.1 and the housing 4.2 to allow the hot melt head 4.1 to extend outward from the housing 4.2. The elastic element 4.3 is a column spring or a spring sheet. The elastic element 4.3 ensures that the hot melt head 4.1 is always pressed against the adhesive strip a12, thereby guaranteeing a tight fit between the heat source and the adhesive strip and improving the melting speed of the hot melt adhesive.

[0049] Similarly, the above addresses the issue of misalignment between the hot melt head 4.1 and the adhesive strip a12. The following addresses the issue of misalignment between the hot melt head 4.1 and the waist hole a11. The hot melt unit 4 is also floating. The shell 4.2 of the hot melt unit is fixed to the outside of the bent end of the corner plate 1.1 by screws, and a certain gap is provided between the screws and the shell 4.2 in the radial direction. In this application, the screw diameter is 2mm, the radial single-sided gap is 0.3-0.5mm, and a spring 4.4 is provided between the screws and the shell 4.2 in the circumferential direction. This gap and the spring allow the hot melt unit 4 to move or swing to the side within a certain range, thus compensating for any misalignment between the hot melt head 4.1 and the waist hole a11, avoiding the drawback of the hot melt head 4.1 not being in place and unable to melt the adhesive.

[0050] Furthermore, as can be seen from the above, this application mainly utilizes the positioning end 6.1 at the front end of the positioning member 6 and the corner guard plate a for positioning. Therefore, the positioning end 6.1 can adopt the following two structures:

[0051] The first type has a circular hole structure at the end of the positioning component 6. During positioning, the apex of the corner guard plate a can abut against the circular hole structure. It should be noted that the circular hole structure is relatively large and has a certain depth, allowing the apex of the corner guard plate a to enter the circular hole to a certain depth. After reaching a certain depth, the corner plate a1 will be restricted by the edge of the circular hole, thus achieving positioning. Then, the packaging device is rotated so that the corner plate 1.1 corresponds to the corner plate a1, satisfying the requirements described above.

[0052] The second type features a triangular conical hole structure at the end of the positioning element 6, where the edges of the conical hole are perpendicular to each other. Therefore, when the apex of the corner guard plate a enters the triangular conical hole structure, it can also be positioned for rotation. Since the positioning element 6 is screwed and rotatable, it allows the corner plate 1.1 and the corner plate a1 to be aligned at their opening speeds, meeting the requirements described above. This makes it more convenient to use and effectively improves packaging efficiency.

[0053] Based on this, when adjusting the positioning component 6, it is easy to see the corresponding positional relationship between the corner plate 1.1 and the ridge plate a1. The handle 3 is provided with a through hole structure in the axial direction, and the rear end of the positioning component 6 is provided with a screw end 6.2, such as an internal hex hole or a cross hole, and corresponding to the through hole. Thus, the positioning component 6 can be screwed from the rear end of the handle. Therefore, by adjusting, it can be used for different ridge guard plates, improving the ease of use of the packaging device.

[0054] In addition, this application also provides a packaging box corner packaging tool, including the above-mentioned packaging device and corner guard, which can be produced, sold and used together.

[0055] Based on the above-described preferred embodiments of the present invention, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A carton corner packer characterized by, Includes a angular arm (1), which includes three corner plates (1.1), wherein the corner plates (1.1) are bent plates, one end of the three corner plates (1.1) are connected and the inner side of the bent corner plates (1.1) can be fitted to the corner corresponding to any apex corner of the rectangular packaging box; A vacuum suction cup (5) and a heat melter (4) are respectively installed at the bent end of each corner plate (1.1), wherein the heat melter (4) is placed on one side of the vacuum suction cup (5); A handle (3) is provided on the outside of the connecting end of the three corner plates (1.1); A positioning element (6) is provided on the inner side of the connection end of the three corner plates (1.1), and a positioning end (6.1) is provided on the inner side of the connection end of the three corner plates (1.1). The hot melt machine (4) includes a housing (4.2) installed on the bent end of the corner plate (1.1), a hot melt head (4.1) is telescopically installed inside the housing (4.2), and an elastic element (4.3) is installed between the rear end of the hot melt head (4.1) and the housing (4.2) for the hot melt head (4.1) to extend to the outer end of the housing (4.2). The packaging device quickly installs the corner protector onto the packaging box. The packaging device is equipped with a corner arm with a positioning component on its inner side, which can quickly position the corner protector. A vacuum suction cup is installed on the corner arm to grip the corner protector. A hot melt device is also installed on the corner arm to melt the hot melt adhesive on the corner protector. Thus, as the packaging device repeatedly grips, it can generate an adhesive molten adhesive on the corner protector, and quickly fit and fix the corner protector to the corner of the packaging box. It also includes a connecting corner plate (2), one end of each of the three corner plates (1.1) is installed at the front end of the connecting corner plate (2) to connect one end of the three corner plates (1.1), and the handle (3) is installed at the rear end of the connecting corner plate (2).

2. A carton corner packer as claimed in claim 1 wherein, The housing (4.2) is fixed to the outside of the bent end of the corner plate (1.1) by screws. A certain gap is provided between the screws and the housing (4.2) in the radial direction, and a spring (4.4) is directly provided between the screws and the housing (4.2) in the circumferential direction.

3. A carton corner packer as claimed in claim 1 wherein, The positioning end (6.1) is a circular hole structure opened at the end of the positioning member (6).

4. A carton corner packer as claimed in claim 1 wherein, The positioning end (6.1) is a triangular conical hole structure opened at the end of the positioning member (6), wherein the edges of the conical hole are arranged perpendicular to each other.

5. A carton corner packer as claimed in claim 4 wherein, The positioning element (6) is screwed to the connecting end of the three corner plates (1.1).

6. A carton corner packer as claimed in claim 5 wherein, The handle (3) has an axial through hole structure, and the positioning member (6) has a screw end (6.2) at its rear end, which is corresponding to the through hole.

7. A corner guard installed with the corner packer according to any one of claims 1 to 5, characterized in that, Includes a corner guard plate (a), which includes three corner plates (a1), wherein the corner plates (a1) are bent plates, one end of the three corner plates (a1) are connected and the inner side of the three corner plates (a1) can be snapped to the corner corresponding to any corner of the rectangular packaging box, and the outer side of the bend can be set to correspond to the corner plate (1.1) and can press against the vacuum suction cup (5); A waist hole (a11) corresponding to the hot melting device (4) is arranged at the bending end of each of the said edge plate (a1), and a rubber strip (a12) is fixed at the inner side of the bending end, wherein the rubber strip (a12) completely covers the waist hole (a11), and the rubber strip (a12) is provided with hot melt glue body at the opposite side of the waist hole (a11).

8. A corner packaging tool for a packaging box, characterized by The package of claim 1 and the corner protector of claim 7.

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