Plastic ammunition packaging box with foamed product inner cavity

Abstract

The invention discloses an ammunition plastic packaging box with a foamed product inner cavity, and the packaging box is of a side-by-side double-barrel type structure and can contain two ammunitions. Comprising a box cover, a box body, a handle, a buffer pad, a supporting piece, a lining bullet support, a sealing ring, a damping pad and an adjusting pad. A thread structure is formed in the box cover, and the box cover is in threaded connection with the box body; the handle is mounted on the outer side of the box body; a buffer pad and a supporting piece are arranged at the end, away from the box cover, of the box body, a lining bullet support is arranged in the box body, an inner cavity of the lining bullet support is used for containing ammunition, and the lining bullet support is made of a PU foaming material; a sealing ring is installed in a groove of the box body, a shock pad and an adjusting pad are placed in the box body, and the shock pad and the adjusting pad are located between the tail of the ammunition and the box cover. The garment has high protection performance. The surface of the lining ammunition support is smooth, so that when ammunition is boxed and taken out, friction force is small, and loading and taking service operation is convenient and fast.

Description

Technical Field

[0001] The invention relates to the technical field of packaging boxes, in particular to an ammunition plastic packaging box with a foamed inner cavity. Background Art

[0002] General ammunition packaging usually consists of a hard plastic outer shell and a soft lining to provide double protection inside and outside. The plastic outer shell and the lining are both separate structures, and the lining and the outer shell are bonded with glue or not.

[0003] The method of gluing the lining and the shell together has the following disadvantages: it is difficult to achieve full-face bonding, the bonding process is inconsistent, it is time-consuming and costly.

[0004] The method of not bonding the liner to the shell has the following defects: there is a gap between the liner and the shell, which is prone to shaking; the liner is not fixed and there is a risk of loosening; it needs to be assembled separately, which is costly. Summary of the invention

[0005] In view of the above-mentioned deficiencies of the prior art, the technical problem to be solved by this patent application is how to provide a plastic packaging box for ammunition with a foamed inner cavity, so as to increase the contact area between the ammunition and the cartridge case in the packaging box, and the fine-pore foamed structure and appropriate hardness of the inner cartridge case ensure that the ammunition has a high protective performance during transportation and vibration. The inner cartridge case has a smooth surface, so that the friction is small when the ammunition is packed and taken out, and the loading and unloading service operation is convenient and fast.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] A plastic packaging box for ammunition with a foamed inner cavity, which is a double-tube structure in parallel and can hold two rounds of ammunition; it includes a box cover, a box body, a handle, a cushion, a support, an inner liner, a sealing ring, a shock-absorbing pad and an adjustment pad;

[0008] The box cover has a threaded structure formed inside, and the box cover is connected to the box body through threads; the handle is installed on the outside of the box body;

[0009] A buffer pad and a support are provided at one end of the box body away from the box cover, and an inner liner is provided in the box body. The inner cavity of the inner liner is used to place ammunition, and the inner liner is made of PU foam material; a sealing ring is installed in the groove of the box body, and a shock-absorbing pad and an adjustment pad are placed in the box body, and the shock-absorbing pad and the adjustment pad are located between the tail of the ammunition and the box cover.

[0010] There are two handles, which are fastened to the side of the box body by bolts and nuts embedded in the box body.

[0011] Among them, the box cover is injection molded of plastic material, and a threaded structure is directly molded inside; the box body is blow molded of plastic material; the handle is injection molded of plastic material; the buffer pad is injection molded of elastomeric material; the support part is machined from a plastic tube, and a metal limit ring is assembled on the outside; the lining support is foamed with PU foam; the sealing ring is a silicone O-ring; and the shock-absorbing pad and adjustment pad are both injection molded of elastomeric material.

[0012] Among them, the inner liner support molding process is as follows: after the injection-molded box body is loaded into the mold and fixed through the foam mold, the ammunition-shaped core rod is loaded into the foaming mold, the buffer pad and the support part are loaded into the core rod fixed position, and then the high-pressure PU foam material is flushed into the foaming mold. The foaming agent triggers the PU material to foam and fill the gap space between the inner wall of the box and the core rod, so that the inner liner body is completely molded.

[0013] Among them, the inner lining support is made by adding a conductive agent to the PU foam material and stirring it evenly at high speed in a high-pressure mixing tank to ensure that the conductive medium is evenly distributed after the support is formed and the surface resistivity reaches <1×1012Ω.

[0014] Among them, the liner cartridge is polished by the mold core rod, and the polishing degree is ≥800 mesh. The core rod is designed with a cooling water channel. The cooling water circulates to quickly cool the core rod, so that the inner surface of the liner cartridge is quickly hardened and crusted, forming a smooth and hard surface layer, which is convenient for ammunition loading and removal operations.

[0015] Among them, the lining support can control the foaming density and surface hardness index through the adjustment of PU foaming material and foaming process, ensuring that the lining support has good supporting strength and cushioning performance.

[0016] Among them, the inner cavity size of the liner buttstock is controlled by the core rod size of the foaming mold and the foaming process parameters, ensuring that the size of the liner buttstock is stable and suitable for loading and unloading ammunition.

[0017] In summary, compared with the prior art, the ammunition plastic packaging box with foamed inner cavity of this product has the following beneficial effects: the ammunition packaging box, the box plastic shell is formed by blow molding, the cavity forms a hollow structure, the box is positioned in the foam mold, and after the mold core rod imitating the shape of ammunition is loaded into the box for positioning, the space between the box and the core rod is filled with high-pressure PU foaming material, and the PU material is foamed by the foaming agent and parameter control to form a uniform fine-porous foaming structure of the inner lining butt. The inner cavity of the inner lining butt imitates the shape of ammunition, and the surface adopts rapid cooling technology to form a smooth and hard surface layer.

[0018] The inner cavity contour structure of the liner buttstock can increase the contact area between the ammunition and the buttstock in the packaging box. The fine-pore foam structure and appropriate hardness of the liner buttstock ensure that the ammunition has high protection performance during transportation and vibration. The surface of the liner buttstock is smooth, which reduces the friction when loading and unloading the ammunition, making loading and unloading operations convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic structural diagram of an ammunition plastic packaging box with a foamed inner cavity as described in the present invention.

[0020] Figure 2 for Figure 1 Side view of.

[0021] Figure 3 The present invention provides a cross-sectional view of an ammunition plastic packaging box with a foamed inner cavity.

[0022] Figure 4 for Figure 3 A magnified schematic diagram of center A.

[0023] Figure 5 This is a schematic diagram of the installation of the handle and protective box.

[0024] Figure 6 for Figure 5 Sectional view of AA. DETAILED DESCRIPTION

[0025] The present invention is further described in detail below in conjunction with the accompanying drawings. In the description of the present invention, it should be understood that the directions or positional relationships indicated by directional words such as "upper, lower" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description. Unless otherwise stated, these directional words do not indicate or imply that the devices or components referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0026] like Figure 1-6As shown, a plastic packaging box for ammunition with a foamed inner cavity is provided, the packaging box is a side-by-side double-cylinder structure and can hold two rounds of ammunition; it comprises a box cover 1, a box body 2, a handle 3, a cushion 5, a support 6, an inner liner support 7, a sealing ring 8, a shock-absorbing pad 9 and an adjustment pad 10; a threaded structure is formed inside the box cover, and the box cover is connected to the box body by threads; the handle is installed on the outside of the box body; a cushion and a support are provided at one end of the box body away from the box cover, one of the cushions is assembled on one side of the support and then positioned in the foam mold, and is fixed in the box body and the foam support when the inner liner support is foamed, an inner liner support is provided in the box body, the inner cavity of the inner liner support is used for placing ammunition, and the inner liner support is made of PU foam material; a sealing ring is installed in the groove of the box body, a shock-absorbing pad and an adjustment pad are placed in the box body, and the shock-absorbing pad and the adjustment pad are located between the tail of the ammunition and the box cover. The shock-absorbing pad is assembled in the positioning column inside the box cover; the adjusting pad is placed between the tail of the ammunition and the box cover according to the actual situation when the product is contained, and the tightening tightness is adjusted; the box cover and the box body are tightened by threads.

[0027] During implementation, two handles are provided and are fastened to the side of the box body through bolts 4 and nuts 13 embedded in the box body.

[0028] During implementation, the box cover is injection molded from plastic material, and a threaded structure is directly molded inside; the box body is blow molded from plastic material, and the mold cavity is used to ensure that the box body shape and size are consistent with the mold. The handle assembly nut is embedded in the mold and then injection molded; the handle is injection molded from plastic material; the buffer pad is injection molded from elastomer material; the support is machined from a plastic tube, and a metal limit ring is assembled on the outside; the lining elastic support is foamed from PU foam; the sealing ring is a silicone O-type sealing ring; the shock-absorbing pad and adjustment pad are both injection molded from elastomer material. The bolts, nuts, fastening bolts, etc. are all standard parts.

[0029] During implementation, the liner support molding process is as follows: the ammunition is placed in two independent liner support cavities respectively, the contact surface between the liner support and the ammunition is designed according to the shape of the ammunition, the injection-molded box body is loaded into the mold and fixed through the foam mold, the ammunition profiling core rod is loaded into the foaming mold, the buffer pad and the support part are loaded into the core rod fixed position, and then the high-pressure PU foaming material is flushed into the foaming mold, the PU material is foamed by the foaming agent, and the gap space between the inner wall of the box and the core rod is filled, so that the liner body is completely molded.

[0030] During implementation, the lining spring support is made by adding a conductive agent to the PU foam material and stirring it evenly at high speed in a high-pressure stirring tank to ensure that after the spring support is formed, the conductive medium is evenly distributed and the surface resistivity reaches <1×1012Ω.

[0031] During implementation, the liner cartridge is polished through the mold core rod, and the polishing degree is ≥800 mesh. The core rod is designed with a cooling water channel. The cooling water circulates to quickly cool the core rod, so that the inner surface of the liner cartridge is quickly hardened and crusted, forming a smooth and hard surface layer, which is convenient for ammunition loading and removal operations.

[0032] During implementation, the liner support can control the foaming density and surface hardness index through the adjustment of PU foaming material and foaming process, so as to ensure that the liner support has good supporting strength and cushioning performance.

[0033] During implementation, the inner cavity size of the liner buttress is controlled by the core rod size of the foaming mold and the foaming process parameters, ensuring that the size of the liner buttress is stable and suitable for loading and unloading ammunition.

[0034] The support is made of plastic pipe, and the outer limit platform is machined, and the metal ring is installed on the outer side of the support limit platform. The metal ring has high hardness and good strength, which ensures that when the ammunition is axially impacted, the support generates a meridional force due to contact with the conical structure of the ammunition, so that after the support expands, the ammunition moves to the front end, affecting the safety of the ammunition.

[0035] The sealing ring is a standard O-ring made of silicone material. The sealing ring is fixed in the positioning groove at the mouth of the box body. When the box cover is tightened, the box cover and the box body compress the sealing ring to achieve the sealing function. It has the function of charging pressure of 0.02MPa and no air leakage.

[0036] When the box cover is injection molded, the box cover nut 12 is embedded in the mold to fix the nut on the box cover. After the box cover is installed in the box body, the shell body detects the sealing performance of the packaging box through the box cover nut hole. The nut hole is sealed by pressing the sealing gasket through the box cover bolt 11.

[0037] After the ammunition is loaded into the packaging box, the ammunition is completely covered in the conformal liner cartridge case in the longitudinal direction; the ammunition side is fastened and buffered by support parts and buffer parts; the tail side is fastened and buffered by shock-absorbing pads.

[0038] When the ammunition is loaded into the packaging box, since the length direction of the packaging box and the ammunition product varies within the tolerance range, soft adjustment pads are set. The use of adjustment pads (0 to 2 pieces) can ensure that the ammunition is firmly fixed in the axial direction.

[0039] The two handles are connected to the box body through four bolts and nuts embedded in the box body respectively. The handles can slide upward in the stacking state Z, so that when the handles are in use, there is enough space for the palm to grasp. When not in use, the stacking space is ensured to meet the stacking space.

[0040] The ammunition packaging box has a plastic shell that is formed by blow molding, and the cavity forms a hollow structure. The box is positioned in a foam mold. After the mold core rod that imitates the shape of ammunition is installed in the box and positioned, high-pressure PU foaming material is filled into the space between the box and the core rod. Through the foaming agent and parameter control, the PU material is foamed to form a uniform fine-porous foaming structure of the lining butt. The inner cavity of the lining butt imitates the shape of ammunition, and the surface adopts rapid cooling technology to form a smooth and hard surface.

[0041] The inner cavity contour structure of the liner buttstock can increase the contact area between the ammunition and the buttstock in the packaging box. The fine-pore foam structure and appropriate hardness of the liner buttstock ensure that the ammunition has high protection performance during transportation and vibration. The surface of the liner buttstock is smooth, which reduces the friction when loading and unloading the ammunition, making loading and unloading operations convenient and quick.

[0042] Finally, it should be noted that those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. An ammunition plastic packaging box with foamed inner cavity, characterized in that: The packaging box is a side-by-side double-barrel structure that can hold two rounds of ammunition; it includes a box cover, a box body, a handle, a cushion, a support, an inner liner, a sealing ring, a shock-absorbing pad and an adjustment pad; The box cover has a threaded structure formed inside, and the box cover is connected to the box body through threads; the handle is installed on the outside of the box body; A buffer pad and a support are provided at one end of the box body away from the box cover, and an inner liner is provided in the box body. The inner cavity of the inner liner is used to place ammunition, and the inner liner is made of PU foam material; a sealing ring is installed in the groove of the box body, and a shock-absorbing pad and an adjustment pad are placed in the box body, and the shock-absorbing pad and the adjustment pad are located between the tail of the ammunition and the box cover.

2. The ammunition plastic packaging box with foamed inner cavity according to claim 1, characterized in that: The handles are provided with two and are fastened to the side of the box body through bolts and nuts embedded in the box body.

3. The ammunition plastic packaging box with foamed inner cavity according to claim 1, characterized in that: The box cover is injection-molded by plastic material, and a threaded structure is directly molded inside; the box body is blow-molded by plastic material; the handle is injection-molded by plastic material; the buffer pad is injection-molded by elastomeric material; the support member is machined from a plastic tube, and a metal limit ring is assembled on the outside; the lining support is foamed by PU foam; the sealing ring is a silicone O-ring; the shock-absorbing pad and adjustment pad are both injection-molded by elastomeric material.

4. The ammunition plastic packaging box with foamed inner cavity according to claim 1, characterized in that: The inner liner support molding process is as follows: after the injection molded box body is loaded into the mold and fixed through the foam mold, the ammunition-shaped core rod is loaded into the foaming mold, the buffer pad and the support part are loaded into the core rod fixed position, and then the high-pressure PU foam material is flushed into the foaming mold. The PU material is foamed by the foaming agent to fill the gap space between the inner wall of the box and the core rod, so that the inner liner body is completely molded.

5. The ammunition plastic packaging box with foamed inner cavity according to claim 1, characterized in that: The inner lining support is made by adding a conductive agent to the PU foam material and stirring it evenly at high speed in a high-pressure stirring tank to ensure that the conductive medium is evenly distributed after the support is formed and the surface resistivity reaches <1×1012Ω.

6. The ammunition plastic packaging box with foamed inner cavity according to claim 1, characterized in that: The liner cartridge case is polished by the mold core rod, and the polishing degree is ≥800 mesh. The core rod is designed with a cooling water channel. The cooling water circulates to quickly cool the core rod, so that the inner surface of the liner cartridge case hardens and forms a smooth and hard surface layer, which is convenient for loading and removing ammunition.

7. The ammunition plastic packaging box with foamed inner cavity according to claim 1, characterized in that: The liner support can control the foaming density and surface hardness index through the adjustment of PU foaming material and foaming process, so as to ensure that the liner support has good supporting strength and cushioning performance.

8. The ammunition plastic packaging box with foamed inner cavity according to claim 1, characterized in that: The inner cavity size of the liner buttstock is controlled by the core rod size of the foaming mold and the foaming process parameters, ensuring that the size of the liner buttstock is stable and suitable for loading and unloading ammunition.

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