CN110182469A - A kind of back cover structure of packing box - Google Patents

Abstract

The present invention relates to a kind of back cover structures of durian packing box, including inner box, inner box is formed by rectangular cardboard is equivalent, the first folding line is equidistantly provided in rectangular cardboard, first folding line is arranged along rectangular cardboard width direction, the side of rectangular cardboard offers the second notch, second notch is in a strip shape and is disposed to extend along the length direction for stating rectangular cardboard, second notch is provided at the first folding line position, back cover cardboard is provided between adjacent second notch, back cover cardboard mutually fastens and constitutes the cassette bottom of inner box, it is opened up using cardboard tapping equipment at one end interval of rectangular cardboard, after back cover cardboard passes through line-folding machine folding line, back cover cardboard mutually fastens the cassette bottom that may make up inner box, and then formation is to the support of pallet, the back cover structure can be realized to the further stabilising packaging of durian, avoid durian excessive due to weight And the problem of being fallen from the lower end of inner box.

Description

A kind of back cover structure of packing box

Technical field

The present invention relates to article packing technique fields, and in particular to a kind of back cover structure of durian packing box.

Background technique

Durian is known as the title of " king of fruit ", deep by a person sponging on an aristocrat's because it has nutritive value abundant and soft glutinous mouthfeel Like, since durian belongs to tropical fruit (tree), pick and need to be transported immediately, can avoid well-done durian is rotten from rotting The problem of, for the holding time for improving durian, the durian picked is generally not full ripe fruit, due to durian Appearance be covered with spine, and quality is hard, is inconvenient in practical harvester transport process, and durian is in practical fortune During defeated, durian will receive that transhipment time is too long or temperature influences, and there are individual maturations, durian is mature Afterwards, durian crust can be blown from top, and after durian pericarp is blown, durian pulp is easily subject to pollute and rot The problem of, in the prior art, to avoid the top place of durian pericarp from blowing, opening is excessive, bundlees rubber using the appearance in durian The mode of muscle, the durian of above-mentioned binding rubber band although can effectively avoid be open caused by the top place of durian pericarp is blown it is excessive The problem of, thus avoid durian meat fall off and the too fast problem that goes bad, however using rubber band binding by the way of not only operate Inconvenience, and during transporting, mutual extrusion between durian, it is easy to lead to the problem of and squeeze rotten, cause the pin of durian It is poor to sell end condition.

Summary of the invention

The object of the present invention is to provide a kind of back cover structures of durian packing box, can effectively improve to durian packing box The back cover reliability at bottom.

The technical solution that the present invention takes is specific as follows.

A kind of back cover structure of packing box, including inner box, the inner box are formed by rectangular cardboard is equivalent, the rectangle The first folding line is equidistantly provided on cardboard, first folding line is arranged along rectangular cardboard width direction, the rectangular cardboard Side offer the second notch, second notch is in a strip shape and is disposed to extend along the length direction for stating rectangular cardboard, institute It states the second notch to be provided at the first folding line position, back cover cardboard, the back cover cardboard phase is provided between adjacent second notch Mutually fasten and constitute the cassette bottom of inner box.

The technical effect that the present invention obtains are as follows: it is opened up using cardboard tapping equipment at one end interval of rectangular cardboard, thus Can isolate single back cover cardboard, after back cover cardboard passes through line-folding machine folding line, back cover cardboard mutually fastens be may make up it is interior The cassette bottom of box body, and then the support to pallet is formed, then using durian to be placed in supporting case body, strapping is tensed, Inner box may make to shrink, thus realize the contraction to support box body, and then to ensure that operation is tied up in the clamping to durian, Then packing work personnel hold durian carpopodium connection packaging and are placed in packing tube, further steady to durian to realize Fixed packaging, avoids the problem that durian is fallen since weight is excessive from the lower end of inner box.

Detailed description of the invention

Fig. 1 and Fig. 2 is two kinds of visual angle schematic diagrames of packing box；

Fig. 3 is that packing box removes the structural schematic diagram after bung；

Fig. 4 is the structural schematic diagram for being clamped cardboard；

Fig. 5 and Fig. 6 be inner box and support box body be set in together after two kinds of viewing angle constructions schematic diagrames；

Fig. 7 is the top view after inner box, support box body and gas bag bag are assembled together；

Fig. 8 and Fig. 9 is two kinds of viewing angle constructions schematic diagrames for supporting box body and pallet；

Figure 10 is the top view for supporting box body and pallet；

Figure 11 is the partial structure diagram supported in box body；

Figure 12 is the floor map supported after box body expansion；

Figure 13 is the structural schematic diagram of inner box；

Figure 14 and Figure 15 is the floor map after two kinds of embodiment expansion of inner box；

Figure 16 is the status diagram when rectangular cardboard of inner box is equivalent.

Specific embodiment

In order to which objects and advantages of the present invention are more clearly understood, the present invention is carried out with reference to embodiments specific It is bright.It should be appreciated that following text is only used to describe one or more of specific embodiments of the invention, not to the present invention The protection scope specifically requested carries out considered critical.As used in this article, it is tight to be not limited to it for term " parallel " and " vertical " The geometric definition of lattice, but including reasonable for machining or mankind's error and inconsistency tolerance；Elaborate this below The specific features of packing box:

Below with reference to entire packing box, explanation in detail is made to the back cover structure of packing box of the invention:

A kind of packing box, including inner box 10, the chamber radial dimension that the inner box 10 encloses can increase or become smaller, described interior It is additionally provided with strapping 20 outside box body 10, the strapping 20 is disposed to extend along the circumferential direction of inner box 10, the inner box Support box body 30 is additionally provided in the cavity of body 10, the chamber that the support box body 30 encloses is used for support durian, described interior The bottom of box body 10 is provided with pallet 40, and the inner box 10 is arranged in packing tube 50；

In conjunction with shown in Fig. 1 to Figure 13, durian will support box body 30, packing tube when actually using packing box packaging first 50, inner box 10 and pallet 40 are got ready, and pallet 40 is then placed on to the cylinder bottom of inner box 10, and support box body 30 is placed on In inner box 10, packing work personnel's hand holds durian, durian is placed in the chamber of support box body 30, so that durian The end of fruit is resisted against on pallet 40, and then packing work personnel hold strapping 20, strapping 20 is tightened, so that interior The radial direction size of box body 10 becomes smaller, so that the radial dimension of support box body 30 becomes smaller, to realize to durian It ties up, the durian top pericarp for avoiding durian from occurring due to maturation is open excessive problem, then by packaged pomegranate Lotus fruit is placed in packing tube 50 together with pallet 40, inner box 10 and support box body 30, so that realizing has entire durian Imitate packing machine support；

Above-mentioned durian is supported using support box body 30, when tightening strapping 20, so that the radial direction side of inner box 10 During contraction, so that coupled support box body 30 is shunk, during support box body 30 is shunk, the inner wall of box body 30 is supported Pericarp crust with durian is against while capable of effectively realizing to the clamping of durian crust, moreover it is possible to effectively realize to durian The limit of fruit, the shaking problem for avoiding durian during actual shipment, and occurring can be realized using support box body 30 to pomegranate While lotus fruit pericarp clamps, moreover it is possible to realize the elastic clamping to durian, avoid excessively shaking and occurring in durian transport The problem of durian opening is blown；

Stability to durian packaging not only can be improved using this kind of packing box packaging durian, also can ensure that durian short It is not in rotten problem in time, in actual shipment, moreover it is possible to which individually transport prevents the inconvenient problem of durian transport.

As a preferred solution of the present invention, in conjunction with shown in Fig. 3 and Fig. 4, the opening of the inner box 10 is provided with clamping Cardboard 60, the edge end face of the clamping cardboard 60 and the chamber inner wall of inner box 10 on the clamping cardboard 60 against being arranged There is the opening 61 passed through for durian carpopodium；

To realize the limit to durian carpopodium, using setting clamping cardboard 60, pomegranate at the chamber opening that inner box 10 encloses The carpopodium of lotus fruit passes through the opening 61 at clamping 60 center of cardboard, to stretch out at the box mouth of inner box 10；

Since the difference of durian can lie in the fruit on table top with apple or other tops, during durian is integrally presented Between state big, small in ends, and the shape of most of durian is not above-mentioned state small in the end and big in the middle yet, mostly Irregular form, therefore be difficult so that durian carpopodium is presented naturally state upward, thus by one end of durian against On pallet 40, carpopodium one end of durian is clamped using clamping cardboard 60, so as to effectively realize to durian two The limit at end carries out avoiding durian from arbitrarily moving, to avoid packet so that durian is transported with the posture of carpopodium upward Durian is located in packing box and is arbitrarily moved when mounted box is shaken.

Further, shown in combined Fig. 5, Fig. 7, Fig. 8, Fig. 9 and Figure 10, the support box body 30 includes holding out against box 31, It is described hold out against box 31 along support box body 30 chamber circumferential direction interval setting it is multiple, the length direction for holding out against box 31 with It supports the length direction of box body 30 parallel and section is triangle；

Above-mentioned 31 equidistant interval of box that holds out against is arranged in the chamber of support box body 30, and durian is placed on and is held out against in box 31 Afterwards, the pericarp of durian with hold out against the outer wall of box 31 against and the section for holding out against box 31 is triangle, so that holding out against box 31 Side straight flange constitutes the inner surface of support 31 chamber of box body, supports so that the epidermis of durian is compiled with the side for holding out against box 31 It leans on, the box 31 that holds out against of triangle pair is capable of forming the cavity held out against, and it is more stable to hold out against box 31, when tightening strapping When 20, so that 10 radial contraction of inner box, after 10 radial contraction of inner box, so that support box body 30 also generates radial contraction, from And realize the clamp operation to durian pericarp, during holding out against box 31 and being held out against with durian pericarp, so that holding out against box 31 Deformation is generated, and then the deformation energy for holding out against the generation of box 31 due to the cavitation problem that durian appearance is irregular and occurs can be eliminated The clamp operation to durian is enough effectively improved, on the one hand can avoid being located in packing box due to shaking and arbitrarily moving and occur Problem of colliding with, another party can effectively improve the pericarp clamping degree to durian, avoid durian due to mature after-opening mistake Big problem.

Specifically, the inner box 10 is formed by rectangular cardboard 11 is equivalent, is equidistantly provided in the rectangular cardboard 11 First folding line 111, first folding line 111 are arranged along 11 width direction of rectangular cardboard, are set at first folding line 111 It is equipped with perforation 112, one end of the strapping 20 sequentially passes through perforation 112 and both ends are located at the bonding at 11 both ends of rectangular cardboard Place；

In conjunction with shown in Fig. 5 and Fig. 6, after the first folding line 111 of above-mentioned rectangular cardboard 11 is folded by line-folding machine, on line-folding machine Laminating mechanism makes rectangular cardboard 11 that repeatedly equivalent state be presented around the first folding line 111, and the first folding line 111 is distributed In the two sides of rectangular cardboard 11, cardboard engagement device is then utilized, so that the both ends of rectangular cardboard are equivalent together, and then is formed One tubular packing box without bottom edge then opens up perforation 112 at the first folding line 111, by 20 one end of strapping by this Perforation 112 passes through, and then the strapping 20 is distributed in the rectangular cardboard 11, when it is desired to be used, by the rectangular cardboard 11 Both ends be combined together, so as to constitute a tubular inner box 10.

The equivalent structure that is serrated of the first above-mentioned folding line 111, and the both ends of rectangular cardboard 11 are connected as one, In actual use, due to the carton that laciniation encloses, inner box 10 is enabled to be located at 11 position of the first folding line The cardboard of two sides produces relative rotation, so that the internal diameter of inner box 10 generates the increase of radial direction, enables adaptation to To the packaging of various sizes of durian；

The first above-mentioned folding line 111 is the general designation to the folding line of 11 width direction of rectangular cardboard setting, actually the first folding line 111 It is constituted comprising multiple points of folding lines, to facilitate realization to bend rectangular cardboard 11, and realizes and open up 112 operations of perforation；

In conjunction with shown in Figure 13 to Figure 15, in fact, the first folding line 111 include first, second, third point of folding line 1111,1112, 1113, the two sides that first point of folding line 1111 and third divide folding line 1113 to be located at second point of folding line 1112, first point of folding Constitute first point of folded plate 1114 between trace 1111 and second point of folding line 1112, second point of folding line 1112 and third divide folding line 1113 it Between constitute second point of folded plate 1115, angle is arranged between first point of folded plate 1114 and second point of folded plate 1115, described first, the Two, third divides folding line 1111,1112,1113 to be equally spaced along the length direction of rectangular cardboard 11 multiple, and adjacent first, Two, third divides folding line 1111,1112,1113 to constitute cabinet coaming plate 1116, and the width of the cabinet coaming plate 1116 should be 2 times the The width of one point of folded plate 1114 and second point of folded plate 1115 facilitates and carries out folding behaviour to rectangular cardboard 11 using line-folding machine implementation Make, line-folding machine may also set up the when implementing to operate 11 folding line of rectangular cardboard, at the width direction center of cabinet coaming plate 1116 Four points of folding lines 1117, the 4th point of folding line 1117 do not require folding line to stablize, to form an effective inflection point to facilitate, work as line-folding machine After implementing to 11 folding line of rectangular cardboard, using paperboard laminate machine, so that rectangular cardboard 11 is bent rotating around the first folding line 111, And makes respective first point of folding line 1111 and third that folding line 1113 be divided to be bonded to each other together, and make cabinet coaming plate 1116 are superimposed together around the 4th point of folding line 1117, and first point of folding line 1111 is conveniently located at using tapping equipment and third divides folding line 1113 places of being bonded to each other open up rectangular through-holes 112, and strapping 20 is set in rectangular through-holes 1112 using threading device, To realize the arrangement to strapping 20.

Further, the strapping 20 is arranged at intervals with two groups along 10 length direction of inner box；Two groups of above-mentioned bundles Band 20, which can be effectively improved, ties up effect to durian, avoids durian from being located at pericarp opening and blows excessive problem.

In conjunction with shown in Figure 15, one end of the rectangular cardboard 11 is arranged at intervals with two the first notches 113, and described first lacks Mouth 113 is in a strip shape, and the length of described two first notches 113 is consistent with the length direction of rectangular cardboard 11, two the first notches It is provided with limit folding bar 114 between 113, is provided with second between limit folding bar 114 and the top of two the first notches 113 Folding line 115, the other end of the rectangular cardboard 11 and limit folding bar 114 against；

Above-mentioned inner box 10 opens up out two the first notches in one end of rectangular cardboard 11 after folding line, using shedding motion 113, and the second folding line of bending device bending place 115 is utilized, so that limit folding bar 114 is formed, in practical operation, so that square The other end and limit folding bar 114 of shape cardboard 11 are against to realize the limit to 11 other end of rectangular cardboard, by applying mucilage binding It sets and is coated with bonding glue in one end of rectangular cardboard 11, to can realize to the connection of 11 other end of rectangular cardboard, utilize second The limit folding bar 114 that folding line 115 is constituted enables to the other end of rectangular cardboard 11 accurately to import in limit folding bar 114, and With limit folding bar 114 against to realize the closing to entire rectangular cardboard 11.

In conjunction with shown in Figure 14, as a preferred solution of the present invention, one end of the rectangular cardboard 11 is provided with jack 11a, The other end of the rectangular cardboard 11 is provided with slotting cardboard 11b, and the slotting cardboard 11b is plugged in jack 11a, the jack 11a is rectangular opening and hole length direction is parallel with the width direction of rectangular cardboard 11, and the length of the slotting cardboard 11b is slightly less than jack The length of 11a is coincide, and can conveniently be preferred so that inserting cardboard 11b insertion jack 11a, the slotting cardboard 11b is rectangle, inserts paper The both ends of plate 11b are provided with limit card board 11c, the extending direction of the limit card board 11c and the length direction of rectangular cardboard 11 Unanimously, after plant plate 11b is plugged in jack 11a, two limit card board 11c are tilted by one end, so that limit card board 11c shape At the tilting buckle and jack 11a that are formed where rectangular cardboard 11 against to realize to the company at 11 both ends of rectangular cardboard It connects, being formed for above-mentioned limit card board 11c can open up opening at the both ends for inserting cardboard 11b, so that opening two sides and slotting paper The both ends plate 11b can form the limit card board 11c for connection, and the reliability for improving connection simultaneously, in practical operation, is packed Staff only needs slotting cardboard 11b to be inserted into jack 11a by hand, and limit card board 11c is tilted, so that Limit card board 11c is fitted in the rectangular cardboard 11 where jack 11a, thus can realize the connection to 11 both ends of rectangular cardboard, Easy to operate and packing box cost of manufacture is lower.

In conjunction with shown in Figure 14 and Figure 15, further, the side of the rectangular cardboard 11 offers the second notch 116, institute It is in a strip shape and be disposed to extend along the length direction for stating rectangular cardboard 11 to state the second notch 116, second notch 116 is provided with At first folding line, 111 position, back cover cardboard 117 is provided between adjacent second notch 116, the back cover cardboard 117 is mutually buckled Close and constitute the cassette bottom of inner box 10.

It is opened up using cardboard tapping equipment at one end interval of rectangular cardboard 11, it is ensured that so that the second notch 116 is provided with First point of folding line 1111 and third are divided at 1113 position of folding line, so as to isolate single back cover cardboard 117, back cover cardboard 117 by the way that after line-folding machine folding line, back cover cardboard 117 mutually fastens the cassette bottom that may make up inner box 10, and then is formed to pallet 40 support is then placed in support box body 30 using by durian, tenses strapping 20, that is, inner box 10 may make to receive Contracting, to realize the contraction to support box body 30, and then to ensure that operation is tied up in the clamping to durian, then packing work people The hand-held durian carpopodium connection packaging of member is placed in packing tube 50, to realize to the further stabilising packaging of durian, is avoided The problem of durian is fallen since weight is excessive from the lower end of inner box 10.

In embodiment, the back cover cardboard 117 and the side of rectangular cardboard 11 are provided with third folding line 118, the third The length direction of folding line 118 is vertical with the length direction of rectangular cardboard 11, and the plate end of the back cover cardboard 117 is provided with profile 119, the profile 119 is arranged vertically with back cover cardboard 117, and rectangle jack 1171 is provided on the back cover cardboard 117, described The both ends of profile 119 are provided with plug 1191, and the plug 1191 is plugged in rectangle jack 1171；

To ensure to the closed reliability in 10 bottom of inner box, above-mentioned third folding line 118 makes back cover cardboard 117 inwardly curved Folding, is arranged profile 119 in the end of back cover cardboard 117, and plug 1191 is arranged at the both ends of profile 119, in back cover operation, makes It obtains plug 1191 to be plugged in the rectangle jack 1171 of adjacent back cover cardboard 117, to realize the company of adjacent back cover cardboard 1171 It connects, it is ensured that the connection reliability of back cover cardboard 1171.

In actual use due to inner box 10, the internal diameter of inner box 10 can have increasing or reducing for radial direction, institute It states rectangle jack 1171 to arrange in "eight" shape, the width dimensions of the rectangle jack 1171 are greater than the thickness of plug 1191；

The thickness that the width of above-mentioned rectangle jack 1171 is greater than plug 1191 makes when the internal diameter of inner box 10 increases or reduces Plug 1191 is located in rectangle jack 1171 and moves so that inner box 10 can smoothly realize the deformation of radial direction, To adapt to the packaging needs of different size and durian of different shapes.

Further, in conjunction with shown in Figure 14 and Figure 15, the plug 1191 be thin plate-shaped structure, the two of the plug 1191 Side is provided with clamping step 1192, and the both ends of the plug 1191 are provided with introduction bevel 1193, and the plug 1191 is inserted into When in rectangle jack 1171, the table top of the clamping step 1192 and back cover cardboard 117 where rectangle jack 1171 against；

For the reliability for realizing plug 1191 and 1171 grafting of rectangle jack, avoid plug 1191 random from rectangle jack 1171 Export, the two sides of the plug 1191 are provided with clamping step 1192, when plug 1191 is inserted into rectangle jack 1171, so that The table top of step 1192 and the back cover cardboard 117 where rectangle jack 1171 are clamped against to realize the limit to plug 1191 Position, avoids plug 1191 from removing out of rectangle jack 1171, and the length of above-mentioned plug 1191 is slightly larger than rectangle jack 1171, When practical operation, plug 1191 is plugged in rectangle jack 1171 by packing work personnel, to realize the limit to plug 1191 Position, avoids the problem that plug 1191 is arbitrarily removed out of rectangle jack 1171.

To avoid adjacent profile 119 interlaced at one piece, avoid interfering between adjacent profile 119, the profile The evacuation notch 1194 for avoiding adjacent profile 119 is offered on 119；

When adjacent profile 119 implements snap-action, so that a profile 119 passes through evacuation notch 1194, to implement to another The evacuation of profile 119, it is ensured that effective back cover of inner box 10 operates.

Further, in conjunction with shown in Figure 14 and Figure 15, for the effect for ensuring back cover, the back cover cardboard 117 is separated by two First folding line 111 arrangement, offers third notch 110 in the rectangular cardboard 11 where between adjacent back cover cardboard 117, and described the The length direction of three notches 110 is parallel with the length direction of rectangular cardboard 11, and the elongated end of the third notch 110 is provided with The length direction of four folding lines 1101, the 4th folding line 1101 is vertical, and the cardboard at the 4th folding line 1101 is converted into back cover Baffle 12；

The molding of above-mentioned back cover cardboard 117 is separated by two the first folding line 111 arrangements dependent on the formation of third folding line 118, So that forming enough avoiding spaces between back cover cardboard 117, it is ensured that can smoothly be fastened between back cover cardboard 117 Together, it is ensured that the reliability that back cover cardboard 117 seals；

Above-mentioned third notch 110 is capable of forming back cover baffle 12, and by the 4th folding line 1101, so that back cover baffle 12 prolongs It stretches, and extends to the lower position of back cover cardboard 117, the back cover baffle 12 of formation makes the bottom of inner box 10 more flat It is whole, facilitate and import inner box 10 in packing tube 50, and makes the cylinder bottom of back cover baffle 12 and packing tube 50 against thus complete The suit of pairs of inner box 10, so that inner box 10 can be stable is placed in packing tube 50.

As a preferred solution of the present invention, the support box body 30 is formed by support cardboard 32 is equivalent, the support cardboard Multiple 4th folding lines 321 are equidistantly arranged at intervals on 32, the 4th folding line 321 is arranged along the width direction of support cardboard 32 And be parallel to each other, this coaming plate of the first folding line 111 of the equivalent coaming plate of the 4th folding line 321 and rectangular cardboard 11 coincide, And the arrangement corresponding with 321 position of the 4th folding line of the first folding line 111；

The 4th above-mentioned folding line 321 makes the profile of the profile for supporting cardboard 32 equivalent and inner box 10 coincide, so as to suitable It answers the variation of inner box 10 and changes, when the radial direction of inner box 10 increases or reduces, support cardboard 32 by the 4th folding line 321 box like structure formed are plugged in inner box 10, so that the first folding line 111 is corresponding with the position of the 4th folding line 321, it can be true Protect the variation that support box body 30 complies with inner box 10.

Specifically, in conjunction with shown in Figure 11, the outer wall for holding out against box 31 includes the first, second, third, fourth segmentation folding line 311, it 312,313,314 enclosing and constitutes, the third, the 4th segmentation folding line 313,314 constitute and hold out against the top of box 31, and described the 33 middle section of unit coaming plate that four folding lines 321 are partitioned into is provided with the five, the 6th segmentation folding lines 331,332, the 5th segmentation folding The first adhesive board 333, the 6th segmentation folding line 332 and the 4th segmentation folding line are constituted between trace 331 and third segmentation folding line 313 The second adhesive board 334 is constituted between 314, first adhesive board 333 is bonded and is bonded as one with the second adhesive board 334；

The above-mentioned box 31 that holds out against is enclosed by the first, second, third, fourth above-mentioned segmentation folding line 311,312,313,314, So that holding out against 31 Formation cross-section of box is the three-dimensional box like structure of triangle, so that holding out against the one side of box 31 becomes top The box face of tight durian epidermis avoids making out since durian is mature so as to ensure the clamping effect to durian Mouth blows excessive problem；

The unit coaming plate 33 that the 4th above-mentioned folding line 321 is partitioned into can be used to fixation and hold out against box 31, hold out against the top of box 31 with The link position of coaming plate 33 is provided with the five, the 6th segmentation folding lines 331,332, and the 5th segmentation folding line 331 and third divide folding line The first adhesive board 333 is constituted between 313, constitutes the second adhesive board between the 6th segmentation folding line 332 and the 4th segmentation folding line 314 334, so that the top for holding out against box 31 is connect with the middle section of unit coaming plate 33, so that the top connector of box 31 is constituted and holds out against, The interconnecting piece includes the first adhesive board 333 and the second adhesive board 334, and the first adhesive board 333 is enclosed with the second adhesive board 334 with unit The plate face of plate 33 is vertical, when hold out against the outer wall of box 31 and durian against and when implementing to wrap durian, hold out against 31 stress of box, So that holding out against box 31 is located at the deflection that certain angle is generated at 334 bonding position of first adhesive board 333 and the second adhesive board, from And the problem of adapting to 30 internal diameter of support box body generated in 10 contraction process of inner box variation, so that holding out against the one of box 31 Lateral box wall is always with the outer wall of durian against to ensure to hold out against packaging effect to durian.

It is further preferable that as shown in connection with fig. 7, to further increase the reliability to durian packaging, it is ensured that durian The reliability that the reliability and pericarp of support clamp is provided with gas bag bag 70 in the chamber for holding out against box 31；

In virtual package operation, the gas bag bag 70 with buffer function is filled in the box body for holding out against box 31, thus realization pair The further filling for holding out against 31 internal cavity of box, not only support strength is high for the box 31 that holds out against filled with gas bag bag 70, but also avoids pushing up The box 31 that holds out against occurred when tight box 31 is contacted with durian crust deforms excessive problem, to realize having for group's durian Effect clamps, and realizes the resilient support to durian.

To further increase the support reliability to durian, the disk of the pallet 40 is provided with flase floor 80；

Above-mentioned flase floor 80 selects cardboard flase floor, flase floor 80 is placed on supporting plate 40, so that the end of durian is supported It leans against on flase floor 80, can effectively realize the limit to durian, avoid the random movement of durian, it is ensured that pallet 40 is to pomegranate The reliability of lotus fruit support, avoids the random movement of durian.

Further, 60 entirety of clamping cardboard is in disk-shaped, and the edge circumferential direction of the clamping cardboard 60 is equidistant It is extended with top plate 62,62 extending direction of top plate is consistent with the clamping radial direction of cardboard 60, the elongated end of the top plate 62 Be provided with blade fin 621, the blade fin 621 in flap-like and with 111 folding section of the first folding line of rectangular cardboard 11 Plate face against；

After durian is packaged by inner box 10, inner box 10 and support box body 30 are placed in packing tube 50, thus Realize the packaging to durian, straight up, clamping cardboard 60 is set on durian for packaged durian carpopodium, so that The carpopodium of durian passes through opening 61 so that top plate 62 is scheduled at the opening inner wall of inner box 10, and blade fin 621 with it is interior 10 inner wall resilient abutment of box body so that the carpopodium of durian is in the state of vertical correcting, and utilizes clamping cardboard 60 It is set on carpopodium, can avoid touching the problem of stabbing after durian.

Opening 61 is passed through for convenience of durian carpopodium, the clamping cardboard 60 is provided centrally with circumferential notch, the circle The edge of v notch v is circumferentially equidistant to be extended with elastic claw 63, and the extending direction of the elastic claw 63 is towards the radial direction side of circumferential notch To extension, the center of circumferential notch is arranged in the opening 61；

The setting of 63 equidistant interval of elastic claw, after carpopodium is passed through by opening 61, elastic claw 63 is bent, so as to effectively realize pair The evacuation of carpopodium avoids the problem that the muscle ball due to carpopodium surface causes to opening 61 periphery cardboards damage.

To further increase the effect that tightens to durian, the tube port position of the packing tube 50 is provided with hook 51, described Strapping 20 is elastic webbing and both ends are provided with hanging ring, and the hanging ring, which is hung, to be located on hook 51；

The hook 51 of the nozzle inner wall setting of above-mentioned packing tube 50, hook 51 is metal hook, utilizes inner box 10 and supporting case After body 30 packages durian, it then will entirely pack and import in packing tube 50, and then make the hanging ring at 20 both ends of strapping Hang and be located on hook 51, to realize constraint to strapping 20, to realize that the tightening to strapping 20 operates, durian from Under the action of weight, it is ensured that strapping 20 is in the state being straightened always, tightens operation to durian to realize.

More specifically, to ensure the gas permeability inside packing tube 50, the maturation for avoiding durian from occurring due to sealing Too fast problem, the cylinder bottom of the packing tube 50 offer the first air hole 52, and the cylinder feather edge of the packing tube 50 is provided with Extension 53, the edge setting jagged 531 of the extension 53, the tube port position of the packing tube 50 is provided with bung 54, institute It states and is provided with the second air hole 541 on bung 54, handle 542, the barrel week of the packing tube 50 are provided on the bung 54 To offering third venthole 55；

The notch 531 of the edge setting of above-mentioned extension 53, and third venthole is circumferentially opened up in the barrel of packing tube 50 55, the second air hole 541 is set on bung 54, so as to effectively realize the ventilation to packing tube 50, it is mature to extend durian Time.

Below with reference to entire packing box, which is illustrated:

The method for packaging food includes the following steps:

A, semi-matured durian is harvested, selects that fruit shape is uniform and seamless durian as far as possible；

B, the both ends of the rectangular cardboard 11 after folding line and opening manipulation are linked together, to form a complete tubular inner box Body 10 seals the lower end of inner box 10；

C, the both ends of the support cardboard 32 after operating folding line link together, will to form the support box body 30 of a tubular Support box body 30 is plugged in inner box 10, and to support the folding line of box body 30 corresponding with the folding line of inner box 10；

D, pallet 40 is placed on to the bottom of support box body 30, the carpopodium of durian is held, so that the end of durian is resisted against On pallet 40；

E, strapping 20 is tightened, so that inner box 10 is shunk, with the clamp operation to durian lower end of realization；

F, clamping cardboard 60 is set in the upper end cover of inner box 10, so that durian carpopodium is passed through from the opening 61 of clamping cardboard 60；

G, packaged durian is placed in packing tube 50, covers bung 54, complete the packaging to durian.

In the step D, before pallet 40 to be placed on to support 30 bottom of box body, flase floor is placed on pallet 40 80。

In the step G, after durian is placed on packing tube 50, so that the both ends of strapping 20 hang over packing tube On the hook 51 of 50 tube port position, bung 54 is then covered to the tube port position for being located at packing tube 50.

The rectangular cardboard 11 for constituting inner box 10 is located on assembly line and is processed, positioned at the upstream of assembly line by rectangular paper The both ends of plate 11 are connected as one, and are carried out positioned at cylinder bottom of the middle reaches of assembly line to the tubular packing box that rectangular cardboard 11 encloses Back cover operation, takes out from the downstream of assembly line by inner box 10 after molding；

The support cardboard 32 for constituting support box body 30, which is located on assembly line, to be processed, and will be supported positioned at the upstream of assembly line The carry out folding line of cardboard 32 bonds the position of folding line positioned at the middle reaches of assembly line, holds out against box 31 to be formed, and will branch The both ends of support cardboard 32 are connected as one, and are taken out support box body 30 after molding positioned at the downstream of assembly line, and be placed on In inner box 10.

The durian, which is located on conveyer belt, to be conveyed, and the inner box 10 and support box body 30 are located at durian Outlet port arrangement.

The box 31 that holds out against is along multiple, the length for holding out against box 31 of chamber circumferential direction interval setting of support box body 30 Degree direction is parallel with the support length direction of box body 30 and section is triangle.

The inner box 10 is formed by rectangular cardboard 11 is equivalent, is equidistantly provided with the first folding line in the rectangular cardboard 11 111, first folding line 111 is arranged along 11 width direction of rectangular cardboard, is provided with perforation at first folding line 111 112, one end of the strapping 20 sequentially passes through perforation 112 and both ends are located at the bonding place at 11 both ends of rectangular cardboard.

The strapping 20 is arranged at intervals with two groups along 10 length direction of inner box.

After above-mentioned inner box 10 is packaged with support box body 30, gas bag bag 70 is placed in box 31 respectively holding out against, so as to Enough further increase the support reliability to durian.

Claims (10)

1. a kind of back cover structure of packing box, it is characterised in that: including inner box (10), the inner box (10) is by rectangular cardboard (11) it converts into and forms, be equidistantly provided with the first folding line (1111) on the rectangular cardboard (11), the first folding line (111) edge Rectangular cardboard (11) width direction arrangement, the side of the rectangular cardboard (11) offers the second notch (116), described second Notch (116) is in a strip shape and is disposed to extend along the length direction for stating rectangular cardboard (11), and second notch (116) is provided with At first folding line (111) position, it is provided with back cover cardboard (117) between adjacent second notch (116), the back cover cardboard (117) mutually fasten and constitute the cassette bottom of inner box (10).

2. the back cover structure of packing box according to claim 1, it is characterised in that: the back cover cardboard (1117) and rectangle The side of cardboard (11) is provided with third folding line (118), length direction and rectangular cardboard (11) of the third folding line (118) Length direction is vertical.

3. the back cover structure of packing box according to claim 1, it is characterised in that: the plate end of the back cover cardboard (117) It is provided with profile (119), the profile (119) is arranged vertically with back cover cardboard (117), is arranged on the back cover cardboard (117) Have rectangle jack (1171), the both ends of the profile (119) are provided with plug (1191), and the plug (1191) is plugged on rectangle In jack (1171).

4. the back cover structure of packing box according to claim 2, it is characterised in that: the rectangle jack (1171) is in " eight " Font arrangement.

5. the back cover structure of packing box according to claim 2, it is characterised in that: the width of the rectangle jack (1171) Size is greater than the thickness of plug (1191).

6. the back cover structure of packing box according to claim 5, it is characterised in that: the plug (1191) is lamellar knot Structure, the two sides of the plug (1191) are provided with clamping step (1192), and the both ends of the plug (1191) are provided with importing Inclined-plane (1193), when the plug (1191) insertion rectangle jack (1171) is interior, the table top and square of clamping step (1192) Back cover cardboard (117) where shape jack (1171) against.

7. the back cover structure of packing box according to claim 6, it is characterised in that: opened up on the profile (119) useful In the evacuation notch (1194) for avoiding adjacent profile (119).

8. the back cover structure of packing box according to claim 7, it is characterised in that: the back cover cardboard (117) is separated by two A first folding line (111) is arranged, offers third notch in the rectangular cardboard (11) where between adjacent back cover cardboard (117) (110), the length direction of the third notch (110) is parallel with the length direction of rectangular cardboard (11).

9. the back cover structure of packing box according to claim 8, it is characterised in that: the extension of the third notch (110) End is provided with the 4th folding line (1101), and the length direction of the 4th folding line (1101) is vertical, at the 4th folding line (1101) Cardboard be converted into back cover baffle (12).

10. packing box, it is characterised in that: the packing box includes the back cover of packing box described in claim 1 to 9 any one Structure.