Angular arc-shaped unfolding structure for inner cover of tow box

Abstract

The utility model discloses a tow box inner cover corner angle arc-shaped unfolding structure which comprises an inner plate, a long-edge side plate and a short-edge side plate, the short-edge side plate and a connecting block extend at the connecting position to form a stroke crease, a first bending auxiliary groove is formed in the short-edge side plate on one side of the stroke crease, and a second bending auxiliary groove is formed in the short-edge side plate on the other side of the stroke crease. The first bending auxiliary groove, the stroke crease and the second bending auxiliary groove are arranged in an outward radial mode, the first bending auxiliary groove and the stroke crease form a first arc-shaped edge at the top of the short-edge side plate, and the second bending auxiliary groove and the stroke crease form a second arc-shaped edge at the top of the long-edge side plate. After the tows are filled, the first bending auxiliary groove and the second bending auxiliary groove move outwards in the horizontal direction, the stroke folding marks move inwards in the horizontal direction, then a first arc-shaped edge and a second arc-shaped edge are formed in the upper corner angle position of the inner cover, and the first arc-shaped edge and the second arc-shaped edge are better matched with the inner side of the surrounding plate with the deformed bottom. Gaps between corner positions are reduced, and external impurities are prevented from entering the box body.

Description

TECHNICAL FIELD

[0001] The utility model relates to a box body lock structure, in particular to a silk bundle box inner cover corner arc shape development structure. BACKGROUND

[0002] The filter tip refers to the upper half of a cigarette, and is a tool specially designed for smokers, which can effectively reduce the smoke, tar and suspended particles generated during combustion at the entrance during smoking. The three main functions of the cigarette filter tip include direct interception, inertia compression and diffusion deposition.

[0003] The conventional filter tip has been developed from cellulose soft filler, cotton, asbestos and activated carbon to polypropylene filament and other materials as the material inside the filter tip. The existing silk bundle transportation usually adopts the way of top and bottom cover carton to realize the transportation of raw materials to the post-processing site.

[0004] In the prior art, the Chinese utility model patent with the application number CN201520328651.3 discloses a top and bottom cover paper box with heat transfer resistance, which comprises a top cover, a surrounding box and a bottom cover. The bottom and top of the surrounding box are covered in the height direction, thereby playing a role in closing the box body. However, during transportation, in order to facilitate transportation and ensure the safety of the structure, the current variant is to embed the top and bottom covers into the top and bottom of the surrounding box. However, this brings the problem that the corner position is too hard and is prone to deformation and damage after impact. Subsequently, impurities from the outside can enter the box body through the gap and pollute the silk bundle. UTILITY MODEL CONTENT

[0005] The utility model aims to provide a silk bundle box inner cover corner arc shape development structure, which has the advantage of reducing the gap caused by damage to the corner position.

[0006] The above technical purpose of the utility model is realized through the following technical scheme: a silk bundle box inner cover edge angle arc-shaped unfolding structure, including inner plate, long side plate and short side plate, the long side plate is connected at the both sides of inner plate long side, the short side plate is connected at the both sides of inner plate short side, the both ends of short side plate length direction extend outward and have connecting block, the both ends of long side plate length direction are provided with connecting groove matched with connecting block, the connecting groove extends in the length direction of long side plate, the connecting groove and connecting block form clamping gap for connecting block moving and rotating in vertical direction, the short side plate and connecting block extend and form stroke crease at connecting position, the short side plate forms first bending auxiliary groove at one side of stroke crease, the connecting block forms second bending auxiliary groove at the other side of stroke crease, the first bending auxiliary groove, stroke crease and second bending auxiliary groove are provided outward radial, the first bending auxiliary groove and stroke crease form first arc-shaped edge at the top of short side plate, the second bending auxiliary groove and stroke crease form second arc-shaped edge at the top of long side plate.

[0007] Preferably, the stroke crease is formed by hot pressing, the thickness of the stroke crease is less than that of the short side plate, the outer side surface of the stroke crease is lower than that of the short side plate, and the inner side surface of the stroke crease is lower than that of the short side plate.

[0008] By adopting the above technical scheme, the stroke crease is formed by pressing, which reduces the difficulty of rotation and facilitates the relative rotation between the short side plate and the connecting block.

[0009] Preferably, the inner surface and the outer surface of the stroke crease are inversely arc-shaped.

[0010] By adopting the above technical scheme, the stroke crease is formed by hot pressing, which facilitates the rotation of the short side plate and the connecting block in the horizontal direction.

[0011] Preferably, the width of the first bending auxiliary groove and the second bending auxiliary groove is less than that of the stroke crease, the width of the stroke crease is 10-20 mm, and the width of the first bending auxiliary groove is 2-5 mm.

[0012] By adopting the above technical scheme, the first bending auxiliary groove and the second bending auxiliary groove play a role in assisting the formation of the arc-shaped edge, and the width plays a role in ensuring the structural strength of the edge corner position, i.e., avoiding arbitrary bending of the position.

[0013] Preferably, the depth of the first bending auxiliary groove and the second bending auxiliary groove is one-fifth to one-quarter of the short side plate, and the depth of the stroke crease is one-half to five-thirds of the short side plate.

[0014] By adopting the above technical scheme, the positions of the first bending auxiliary groove and the second bending auxiliary groove are less deformed.

[0015] Preferably, the first bending auxiliary groove and the second bending auxiliary groove both intersect at the bottom of the travel fold, and the first bending auxiliary groove, the second bending auxiliary groove and the travel fold are in V shape in the unfolded state.

[0016] By adopting the above technical scheme, when the first bending auxiliary groove, the second bending auxiliary groove and the travel fold are formed by pressing, the ends of the first bending auxiliary groove, the second bending auxiliary groove and the travel fold intersect at the bottom position of the short side plate, i.e. the corner position is in an outward opening state.

[0017] Preferably, the first bending auxiliary groove and the second bending auxiliary groove both intersect above the bottom of the travel fold, and the first bending auxiliary groove, the second bending auxiliary groove and the travel fold are in Y shape in the unfolded state.

[0018] By adopting the above technical scheme, when the first bending auxiliary groove, the second bending auxiliary groove and the travel fold are formed by pressing, the first bending auxiliary groove and the second bending auxiliary groove meet at the upper position of the bottom of the travel fold, so that the bottom of the corner position has a certain vertical section upward.

[0019] Preferably, at least one first bending auxiliary groove is arranged on the short side plate, and at least one second bending auxiliary groove is arranged on the long side plate.

[0020] By adopting the above technical scheme, a plurality of bending auxiliary grooves can be arranged to control the shape of the arc-shaped edge.

[0021] Preferably, the inner plate, the long side plate and the short side plate are integrally cut from an S-shaped plastic hollow plate.

[0022] By adopting the above technical scheme, compared with the prior art paper top and bottom cover box, the box has stronger structural strength and bending resistance, and can better ensure the shape and curvature of the first arc-shaped edge and the second arc-shaped edge.

[0023] To sum up, during use, the inner cover can serve as the top and bottom cover of the box with a top and bottom cover. The inner cover is first placed on the inner bottom of the enclosure, and the outer walls of the long side panels and the short side panels first contact the inner walls of the enclosure. When the enclosure is filled with wire bundles, the tops of the short side panels and the long side panels can be opened outward, and then at the corner position, the first bending auxiliary groove and the second bending auxiliary groove move outward, and the stroke fold moves inward, and then the first arc edge and the second arc edge are formed at the upper corner position of the inner cover. The first arc edge and the second arc edge ensure that the corner position has a certain structural strength. At the same time, after the corner is hit, due to the existence of the first bending auxiliary groove and the second bending auxiliary groove, it can be deformed and restored inward, effectively reducing the generation of gaps and reducing the pollution of the interior of the box by external impurities. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is the die-cutting pattern of Example 1;

[0025] Figure 2 This is a schematic diagram of the structure of Example 1 at the corner position;

[0026] Figure 3 yes Figure 2 An enlarged schematic diagram of part A is shown;

[0027] Figure 4 This is a schematic diagram of the structure of Example 2 at the corner position;

[0028] Figure 5 yes Figure 4 The enlarged schematic diagram of part B is shown;

[0029] In the figure, 1, inner plate; 2, long side plate; 21, connecting groove; 3, short side plate; 31, connecting block; 41, first bending auxiliary groove; 42, travel crease; 43, second bending auxiliary groove; 44, first arcuate edge; 45, second arcuate edge. DETAILED DESCRIPTION

[0030] The present invention will be described in further detail below with reference to the accompanying drawings.

[0031] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

[0032] Example 1:

[0033] Figure 1Disclosed is a knife mold drawing of a topper of a tow box, which is formed by die cutting on a plastic hollow plate, and the plastic hollow plate can adopt an S-shaped plastic hollow plate, and then the topper structure is formed by bending.

[0034] As shown in Figures 1 to 3 , a topper corner arc unfolding structure of a tow box comprises an inner plate 1, a long-side side plate 2 and a short-side side plate 3, the inner plate 1 is rectangular or square, the long-side side plate 2 is connected to both sides of the long side of the inner plate 1, and the short-side side plate 3 is connected to both sides of the short side of the inner plate 1, and the long-side side plate 2 and the short-side side plate 3 can be bent upwards along the height direction.

[0035] As shown in Figures 1 to 3 , in order to realize the connection of the short-side side plate 3 and the long-side side plate 2 in the vertical state, Figure 1 the two ends of the short-side side plate 3 in the length direction extend outwardly with a connecting block 31, and the two ends of the long-side side plate 2 in the length direction are provided with a connecting groove 21 matched with the connecting block 31, the connecting groove 21 extends in the length direction of the long-side side plate 2, and then a clamping gap for the connecting block 31 to move and rotate in the vertical direction is formed between the connecting groove 21 and the connecting block 31, that is, the top of the long-side side plate 2 and the short-side side plate 3 can be unfolded outwardly to a certain extent.

[0036] As shown in Figure 2 and Figure 3 , in order to facilitate the rotation of the short-side side plate 3 and the connecting block 31 in the horizontal direction, the short-side side plate 3 and the connecting block 31 are extended at the connecting position to form a stroke crease 42, the stroke crease 42 extends from the bottom of the short-side side plate 3 to the top of the short-side side plate 3, the stroke crease 42 is formed by hot pressing after die cutting, so that the thickness of the stroke crease 42 is smaller than the thickness of the short-side side plate 3, that is, the outer side surface of the stroke crease 42 is lower than the outer side surface of the short-side side plate 3, the inner side surface of the stroke crease 42 is lower than the inner side surface of the short-side side plate 3, and the inner surface and the outer surface of the stroke crease 42 are in reverse arc shape, the width of the stroke crease 42 is 10mm-20mm, and the width in example 1 is 15mm, and the depth of the stroke crease 42 is one-half to three-fifths of the short-side side plate 3.

[0037] As shown in Figure 2 and Figure 3As shown, in order to facilitate the top of the corner position to be curved instead of right-angled, to reduce damage and gaps, the short side panel 3 forms a first bending auxiliary groove 41 on one side of the stroke crease 42, and the connecting block 31 forms a second bending auxiliary groove 43 on the other side of the stroke crease 42. The first bending auxiliary groove 41, the stroke crease 42 and the second bending auxiliary groove 43 are arranged radially outward, and the first bending auxiliary groove 41 and the stroke crease 42 form a first curved edge 44 at the top of the short side panel 3, and the second bending auxiliary groove 43 and the stroke crease 42 form a second curved edge 45 at the top of the long side panel 2. The width of the first bending auxiliary groove 41 and the second bending auxiliary groove 43 are both smaller than the width of the stroke crease 42. The width range of the first bending auxiliary groove 41 and the second bending auxiliary groove 43 is 2mm-5mm, and the depth of the first bending auxiliary groove 41 and the second bending auxiliary groove 43 is one-fifth to one-quarter of the short side panel 3, which is determined by the thickness of the short side panel 3.

[0038] like Figure 3 As shown, it is a structure with low bottom structural strength and small outward deformation. During the processing process, considering the width of the stroke fold 42, the ends of the stroke fold 42, the first bending auxiliary groove 41 and the second bending auxiliary groove 43 are intersected on the pressing mark, that is, the first bending auxiliary groove 41 and the second bending auxiliary groove 43 both intersect at the bottom of the stroke fold 42, and the first bending auxiliary groove 41, the second bending auxiliary groove 43 and the stroke fold 42 are V-shaped in the unfolded state.

[0039] It should also be known that in Example 1, a first bending auxiliary groove 41 is provided on the short side panel 3, and a second bending auxiliary groove 43 is provided on the long side panel 2. On thinner materials, in order to ensure the required unfolding curvature and shape, multiple first bending auxiliary grooves 41 and second bending auxiliary grooves 43 may be provided, that is, at least one or more.

[0040] Working principle:

[0041] During use, the inner cover is first placed on the inner bottom of the enclosure, and the outer walls of the long side panels 2 and the short side panels 3 are in contact with the inner walls of the enclosure. When the enclosure is filled with wire bundles, the tops of the short side panels 3 and the long side panels 2 can be opened outward under the action of horizontal pressure. At the corner position, the first bending auxiliary groove 41 and the second bending auxiliary groove 43 move outward in the horizontal direction, and the stroke fold 42 moves inward in the horizontal direction, thereby forming the first arcuate edge 44 and the second arcuate edge 45 at the upper corner position of the inner cover. The first arcuate edge 44 and the second arcuate edge 45 better cooperate with the inner side of the enclosure that is deformed at the bottom, reducing the gap between the corner positions and preventing external impurities from entering the box. At the same time, after the corner is hit, the first bending auxiliary groove 41 and the second bending auxiliary groove 43 can be deformed inward, effectively reducing the damage to the corner position.

[0042] Example 2:

[0043] As shown in Figures 4 to 5 Example 2 differs from Example 1 in that, due to the difference in the process, i.e. whether the stroke crease 42 is pre-pressed first or whether the first bending auxiliary groove 41 and the second bending auxiliary groove 43 are formed first, i.e. Figure 1 The three are attributed to one point on the die, but due to the larger width of the stroke crease 42, the first bending auxiliary groove 41 and the second bending auxiliary groove 43 both intersect above the bottom of the stroke crease 42, and the first bending auxiliary groove 41, the second bending auxiliary groove 43 and the stroke crease 42 are Y-shaped in the unfolded state.

[0044] Working principle:

[0045] It will result in a vertical section at the corner bottom, with better structural strength, and a larger outward opening arc, i.e. a larger degree of deformation.

Claims

1. A tow box inner cover with an angular arc-shaped expansion structure, characterized in that: The invention comprises an inner plate (1), a long side plate (2) and a short side plate (3), wherein the long side plate (2) is connected to both sides of the long side of the inner plate (1), and the short side plate (3) is connected to both sides of the short side of the inner plate (1), and connecting blocks (31) are extended outward at both ends of the length direction of the short side plate (3), and connecting grooves (21) are provided at both ends of the length direction of the long side plate (2) to match the connecting blocks (31), and the connecting grooves (21) extend in the length direction of the long side plate (2), and a clamping gap is formed between the connecting grooves (21) and the connecting blocks (31) for the connecting blocks (31) to move and rotate in the vertical direction, and the short side plate (3) and the connecting blocks ( 31) is extended to form a travel fold (42) at the connection position, the short side plate (3) forms a first bending auxiliary groove (41) on one side of the travel fold (42), and the connecting block (31) forms a second bending auxiliary groove (43) on the other side of the travel fold (42), the first bending auxiliary groove (41), the travel fold (42) and the second bending auxiliary groove (43) are arranged radially outward, the first bending auxiliary groove (41) and the travel fold (42) form a first arcuate edge (44) at the top of the short side plate (3), and the second bending auxiliary groove (43) and the travel fold (42) form a second arcuate edge (45) at the top of the long side plate (2).

2. The tow box inner cover angular arc-shaped expansion structure according to claim 1, characterized in that: The travel fold (42) is formed by hot pressing, the thickness of the travel fold (42) is less than the thickness of the short side plate (3), the outer surface of the travel fold (42) is lower than the outer surface of the short side plate (3), and the inner surface of the travel fold (42) is lower than the inner surface of the short side plate (3).

3. The tow box inner cover angular arc-shaped expansion structure according to claim 2, characterized in that: The inner surface and outer surface of the stroke fold (42) are in an inverse arc shape.

4. The tow box inner cover angular arc-shaped expansion structure according to claim 2, characterized in that: The widths of the first bending auxiliary groove (41) and the second bending auxiliary groove (43) are both smaller than the width of the travel fold (42), the width of the travel fold (42) is 10 mm-20 mm, and the width of the first bending auxiliary groove (41) is 2 mm-5 mm.

5. The tow box inner cover angular arc-shaped expansion structure according to claim 4, characterized in that: The depth of the first bending auxiliary groove (41) and the second bending auxiliary groove (43) is one-fifth to one-quarter of the short side plate (3), and the depth of the travel fold (42) is one-half to three-fifths of the short side plate (3).

6. The tow box inner cover angular arc-shaped expansion structure according to claim 5, characterized in that: The first bending auxiliary groove (41) and the second bending auxiliary groove (43) both intersect at the bottom of the travel fold (42); the first bending auxiliary groove (41), the second bending auxiliary groove (43) and the travel fold (42) are V-shaped in the unfolded state.

7. The tow box inner cover angular arc-shaped expansion structure according to claim 5, characterized in that: The first bending auxiliary groove (41) and the second bending auxiliary groove (43) both intersect above the bottom of the travel fold (42); the first bending auxiliary groove (41), the second bending auxiliary groove (43) and the travel fold (42) are Y-shaped in the unfolded state.

8. The tow box inner cover angular arc-shaped expansion structure according to claim 6 or 7, characterized in that: At least one of the first bending auxiliary grooves (41) is provided on the short side plate (3), and at least one of the second bending auxiliary grooves (43) is provided on the long side plate (2).

9. The tow box inner cover angular arc-shaped expansion structure according to claim 1, characterized in that: The inner plate (1), the long side plates (2) and the short side plates (3) are formed by integrally die-cutting an S-shaped plastic hollow plate.

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