CN115196069B

CN115196069B - Closed tail-closing type inert gas filling preservative film packaging box

Info

Publication number: CN115196069B
Application number: CN202211121247.XA
Authority: CN
Inventors: 宋清魁; 赵勇; 赵鹏
Original assignee: Cangzhou Jinsanyang Plastic Industry Co ltd
Current assignee: Cangzhou Jinsanyang Plastic Industry Co ltd
Priority date: 2022-09-15
Filing date: 2022-09-15
Publication date: 2022-11-29
Anticipated expiration: 2042-09-15
Also published as: CN115196069A

Abstract

The invention belongs to the technical field of preservative film packaging, and particularly relates to a closed tailing type inert gas filling type preservative film packaging box which comprises a packaging main body, an inert gas filling mechanism, an upper top type annular shrinkage point type bottom sealing mechanism and a self-cutting and film-covering flattening mechanism, wherein the upper top type annular shrinkage point type bottom sealing mechanism is arranged at the upper end in the packaging main body, the self-cutting and film-covering flattening mechanism is arranged at the lower end of the upper top type annular shrinkage point type bottom sealing mechanism, and the inert gas filling mechanism is arranged at the lower end of the self-cutting and film-covering flattening mechanism; the invention provides an upper top type annular shrinkage point type bottom sealing mechanism which can simply and quickly wrap a box body through the mutual matching of a rotary type closing assembly, an opening and closing type transmission assembly and an anti-toppling pressing assembly.

Description

Closed tail-closing type inert gas filling preservative film packaging box

Technical Field

The invention belongs to the technical field of preservative film packaging, and particularly relates to a closed tailing type inert gas filling type preservative film packaging box.

Background

In the market, two kinds of common plastic wrap package, one kind is rectangle paper packing carton, places cylindric plastic wrap in the box, takes out the plastic wrap during the use, finds the initial position of plastic wrap, cuts or tears the plastic wrap of suitable length with scissors or other instruments according to actual demand, and the packing carton only plays the packing effect. The other is to give a gift a plastic wrap cutterbar when selling the plastic wrap, places the plastic wrap in the plastic box body, finds the plastic wrap initial position during the use, and the blade on the reuse cutterbar cuts off the plastic wrap, however, among the prior art that provides above-mentioned, when using the plastic wrap, the user all need drag the plastic wrap by oneself, cuts or tears the plastic wrap with the help of other instruments to manual parcel food, the user uses inconveniently.

Disclosure of Invention

Aiming at the situation and overcoming the defects of the prior art, the invention provides a closed tailing type inert gas filling type preservative film packaging box, aiming at solving the problems that in the prior art, when a preservative film is used, a user needs to pull the preservative film by himself, cut or tear the preservative film by other tools, wrap food manually and be inconvenient to use by the user, the invention provides an upper top type annular shrinkage point type bottom sealing mechanism, and the box body can be wrapped simply and quickly by the mutual matching of a rotary type closing assembly, an opening and closing type driving machine assembly and an anti-toppling pressing assembly.

The technical scheme adopted by the invention is as follows: the invention provides a closed tailing type inert gas filling type preservative film packaging box which comprises a packaging main body, an inert gas filling mechanism, an upper top type annular shrinkage point type bottom sealing mechanism and a self-cutting coating film flattening mechanism, wherein the upper top type annular shrinkage point type bottom sealing mechanism is arranged at the upper end in the packaging main body; the upper top type annular shrinkage point type bottom sealing mechanism comprises a rotary type closing assembly, an opening and closing type driving machine assembly and an anti-toppling pressing assembly, wherein the rotary type closing assembly is arranged on the upper top type annular shrinkage point type bottom sealing mechanism, the opening and closing type driving machine assembly is arranged on the rotary type closing assembly, and the anti-toppling pressing assembly is arranged at the upper end of the rotary type closing assembly.

Further, the parcel main part includes that the packing material places mouth, encapsulation chamber, equipment chamber, lift cylinder, drags the end, extension board and discharge gate, the equipment chamber is located in the parcel main part, the upper end in equipment chamber is located to the encapsulation chamber, the packing material is placed the mouth and is located the equipment intracavity, the inside lower extreme in equipment chamber is located to the lift cylinder, drag the end and locate the output of lift cylinder, the extension board is located and is dragged the end, the upper end in encapsulation chamber is located to the discharge gate.

Further, the closed subassembly of rotation type includes ring gear, motor, ring, slider, stabilizer blade two and annular spout, the inside lower extreme of encapsulation chamber is located to the annular spout, the one end of slider is slided and is located in the annular spout, the other end of slider is located to the ring gear, the inside lower extreme of encapsulation chamber is located to stabilizer blade two, the ring is located on the stabilizer blade two, the inside lower extreme of encapsulation chamber is located to the motor, the output of motor is located to the gear, ring gear and gear are continuous for the meshing rotation.

Further, the type that opens and shuts transmission machine subassembly includes closing leaf, transmission return bend, mounting one, mounting two and mounting three, mounting one is located on the ring gear, mounting three is located on the ring gear, the one end of closing leaf is rotated and is cup jointed and locate on mounting three, the other end of closing leaf is located to mounting two, the one end of transmission return bend is rotated and is cup jointed and locate on mounting one, the other end of transmission return bend is rotated and is cup jointed and locate on mounting two.

Further, prevent empting and press the subassembly and include that hinge, spring, elastic memory alloy dial piece and buffer, the upper end of encapsulation chamber is located to the hinge, elastic memory alloy dials the one end of piece and locates on the hinge, elastic memory alloy dials the other end downside of piece is located to the buffer, the upper end of encapsulation chamber is located to the one end of spring, elastic memory alloy dials the lower extreme of piece is located to the other end of spring.

Further, from cutting out, tectorial membrane exhibition paper mechanism includes plastic wrap leveling mechanism and equal area cutting type adsorption type material loading subassembly, the equipment intracavity is located to plastic wrap leveling mechanism, equal area cutting type adsorption type material loading subassembly locates the lower extreme of encapsulation chamber.

Further, plastic wrap levels mechanism includes axis of rotation one, plastic wrap, axis of rotation two, axis of rotation three and axis of rotation four, the inside wall lower extreme in equipment chamber is located in the rotation of axis of rotation one, the inside wall upper end in equipment chamber is located in the rotation of axis of rotation two, the inside wall upper end in equipment chamber is located to axis of rotation three, the left side of axis of rotation two is located to axis of rotation three, the inside wall upper end in equipment chamber is located to axis of rotation four, the left side of axis of rotation three is located to axis of rotation four, axis of rotation one is removable to be located on the axis of rotation one.

Further, equal area cutting type absorption formula material loading subassembly includes rubber layer, telescopic cylinder, sucking disc, air pump, telescopic exhaust tube and cutting knife, the rubber layer cup joints and locates on axis of rotation four, telescopic cylinder locates the inside upper end in equipment chamber, telescopic cylinder's output is located to the sucking disc, the inside upper end in equipment chamber is located to the cutting knife, the lateral wall upper end in equipment chamber is located to the air pump, the input of air pump is located to the one end of telescopic exhaust tube, the other end through connection of telescopic exhaust tube is on the sucking disc.

Further, inert gas filling mechanism includes inert gas storage jar, bellows, venthole and electronic valve, equipment intracavity lower extreme is located to the inert gas storage jar, the output of inert gas storage jar is located to bellows's one end, the venthole is located and is dragged on the end, bellows's the other end link up and locate on the venthole, electronic valve locates on the bellows.

Further, the buffer is made of rubber.

The invention with the structure has the following beneficial effects: the invention provides a closed tailing type inert gas filling type preservative film packaging box, which realizes the following beneficial effects:

(1) The invention provides an upper top type annular shrinkage point type bottom sealing mechanism, which can simply and quickly wrap a box body, and realizes the automatic wrapping function of a preservative film through the mutual matching of a rotary type closing assembly, an opening and closing type transmission assembly and an anti-toppling pressing assembly.

(2) The invention further improves the practicability and the generalization performance, and provides a self-cutting film-covering flattening mechanism, which realizes the automatic film-covering function of food through the mutual matching of the preservative film flattening mechanism and the equal-area cutting type adsorption feeding assembly.

(3) The gas is vented from the vent holes to allow the inert gas to surround the box, thereby reducing oxidation of the food product after packaging.

(4) The punch presses the upper end of the box to prevent the box from toppling over during packaging.

(5) The arrangement of the adhesive layer and the sucker facilitates the feeding of the preservative film.

Drawings

FIG. 1 is a front view of a closed tailing type inert gas filling type plastic wrap packaging box according to the present invention;

FIG. 2 is a front sectional view of a closed tailing type inert gas filled preservative film packaging box according to the present invention;

FIG. 3 is a schematic view of a packaging state of a closed tailing type inert gas filled preservative film packaging box provided by the invention;

FIG. 4 is a top view of a closed tailing type inert gas filled preservative film packaging box according to the present invention;

FIG. 5 is a top sectional view of a closed tailing type inert gas filled preservative film packaging box according to the present invention;

FIG. 6 is a schematic view of the rotary closure assembly and the opening and closing drive assembly in a closed position;

FIG. 7 is a schematic view of the rotary closure assembly and the opening and closing drive assembly in their original state;

FIG. 8 is a top view of the mop base;

FIG. 9 is an enlarged view of a portion A of FIG. 2;

fig. 10 is a partially enlarged view of a portion B in fig. 2.

Wherein, 1, a package body, 2, an upper top type annular shrinkage point type bottom sealing mechanism, 3, a self-cutting film covering and flattening mechanism, 4, an inert gas filling mechanism, 5, a package placing opening, 6, a packaging cavity, 7, an equipment cavity, 8, a lifting cylinder, 9, a bottom dragging mechanism, 10, a support plate, 11, a rotary closing component, 12, an opening and closing type transmission mechanism component, 13, an anti-toppling pressing component, 14, a gear ring, 15, a gear, 16, a motor, 17, a circular ring, 18, a slide block, 19, a second support leg, 20, a closing leaf, 21, a transmission bent pipe, 22, a first fixing part, 23 and a second fixing part, 24, three fixing parts, 25, a hinge, 26, a spring, 27, an elastic memory alloy shifting part, 28, a buffer part, 29, a preservative film leveling mechanism, 30, an equal-area cutting type adsorption feeding assembly, 31, a first rotating shaft, 32, a preservative film, 33, a second rotating shaft, 34, a third rotating shaft, 35, a fourth rotating shaft, 36, a rubber layer, 37, a telescopic cylinder, 38, a sucking disc, 39, an air pump, 40, a telescopic exhaust pipe, 41, a cutting knife, 42, an inert gas storage tank, 43, a telescopic corrugated pipe, 44, an air outlet, 45, an electronic valve, 46, an annular chute, 47 and a discharge port.

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments; all other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.

As shown in fig. 1-10, the present invention provides a closed tailing type inert gas filling type plastic wrap packaging box, which comprises a wrapping main body 1, an inert gas filling mechanism 4, an upper top type annular shrinkage point type bottom sealing mechanism 2 and a self-cutting coating film flattening mechanism 3, wherein the upper top type annular shrinkage point type bottom sealing mechanism 2 is arranged at the upper end in the wrapping main body 1, the self-cutting coating film flattening mechanism 3 is arranged at the lower end of the upper top type annular shrinkage point type bottom sealing mechanism 2, and the inert gas filling mechanism 4 is arranged at the lower end of the self-cutting coating film flattening mechanism 3; go up top formula annular and contract some type back cover mechanism 2 and include rotation type closed assembly 11, the type of opening and shutting transmission machine subassembly 12 and prevent empting and press subassembly 13, rotation type closed assembly 11 is located on top formula annular contracts some type back cover mechanism 2, and on rotation type closed assembly 11 was located to the type of opening and shutting transmission machine subassembly 12, prevent empting and press subassembly 13 and locate the upper end of rotation type closed assembly 11.

Parcel main part 1 includes that the packing material places mouthful 5, encapsulation chamber 6, equipment chamber 7, lift cylinder 8, drag end 9, extension board 10 and discharge gate 47, equipment chamber 7 is located in parcel main part 1, the upper end of equipment chamber 7 is located to encapsulation chamber 6, the packing material is placed mouthful 5 and is located in equipment chamber 7, lift cylinder 8 locates the inside lower extreme of equipment chamber 7, drag end 9 and locate lift cylinder 8's output, extension board 10 is located and is dragged on the end 9, the upper end of encapsulation chamber 6 is located to the discharge gate 47.

The self-cutting and film-covering flattening mechanism 3 comprises a preservative film flattening mechanism 29 and an equal-area cutting type adsorption feeding assembly 30, the preservative film flattening mechanism 29 is arranged in the equipment cavity 7, and the equal-area cutting type adsorption feeding assembly 30 is arranged at the lower end of the packaging cavity 6.

The plastic wrap mechanism 29 that levels includes axis of rotation one 31, plastic wrap 32, two 33 of axis of rotation, three 34 of axis of rotation and four 35 of axis of rotation, the inside wall lower extreme of locating equipment chamber 7 is rotated to one 31 of axis of rotation, two 33 of axis of rotation rotate and locate the inside wall upper end of equipment chamber 7, the inside wall upper end of equipment chamber 7 is located to three 34 of axis of rotation, two 33 of axis of rotation left sides are located to three 34 of axis of rotation, four 35 of axis of rotation locate the inside wall upper end of equipment chamber 7, the left side of three 34 of axis of rotation is located to four 35 of axis of rotation, one 31 of axis of rotation is removable to be located on one 31 of axis of rotation.

Equal area cutting type absorption formula material loading subassembly 30 includes rubber layer 36, telescopic cylinder 37, sucking disc 38, air pump 39, telescopic exhaust tube 40 and cutting knife 41, rubber layer 36 cup joints on locating four 35 of axis of rotation, telescopic cylinder 37 locates the inside upper end of equipment chamber 7, telescopic cylinder 37's output is located to sucking disc 38, the inside upper end in equipment chamber 7 is located to cutting knife 41, the lateral wall upper end in equipment chamber 7 is located to air pump 39, the input of air pump 39 is located to the one end of telescopic exhaust tube 40, telescopic exhaust tube 40's the other end through connection is on sucking disc 38.

The inert gas filling mechanism 4 comprises an inert gas storage tank 42, a telescopic corrugated pipe 43, an air outlet 44 and an electronic valve 45, wherein the inert gas storage tank 42 is arranged at the lower end in the equipment cavity 7, one end of the telescopic corrugated pipe 43 is arranged at the output end of the inert gas storage tank 42, the air outlet 44 is arranged on the mop bottom 9, the other end of the telescopic corrugated pipe 43 is communicated with the air outlet 44, and the electronic valve 45 is arranged on the telescopic corrugated pipe 43.

The buffer 28 is made of rubber.

The rotary type closing assembly 11 comprises a toothed ring 14, a gear 15, a motor 16, a circular ring 17, a sliding block 18, two support legs 19 and an annular sliding groove 46, the annular sliding groove 46 is formed in the inner lower end of the packaging cavity 6, one end of the sliding block 18 is arranged in the annular sliding groove 46 in a sliding mode, the toothed ring 14 is arranged at the other end of the sliding block 18, the two support legs 19 are arranged at the inner lower end of the packaging cavity 6, the circular ring 17 is arranged on the two support legs 19, the motor 16 is arranged at the inner lower end of the packaging cavity 6, the gear 15 is arranged at the output end of the motor 16, and the toothed ring 14 is connected with the gear 15 in a meshing rotation mode.

The opening and closing type transmission machine component 12 comprises a closing leaf 20, a transmission bent pipe 21, a first fixing piece 22, a second fixing piece 23 and a third fixing piece 24, wherein the first fixing piece 22 is arranged on the toothed ring 14, the third fixing piece 24 is arranged on the circular ring 17, one end of the closing leaf 20 is rotatably sleeved on the third fixing piece 24, the second fixing piece 23 is arranged at the other end of the closing leaf 20, one end of the transmission bent pipe 21 is rotatably sleeved on the first fixing piece 22, and the other end of the transmission bent pipe 21 is rotatably sleeved on the second fixing piece 23.

The anti-toppling pressing assembly 13 comprises a hinge 25, a spring 26, an elastic memory alloy shifting piece 27 and a buffer piece 28, wherein the hinge 25 is arranged at the upper end of the packaging cavity 6, one end of the elastic memory alloy shifting piece 27 is arranged on the hinge 25, the buffer piece 28 is arranged at the lower side of the other end of the elastic memory alloy shifting piece 27, one end of the spring 26 is arranged at the upper end of the packaging cavity 6, and the other end of the spring 26 is arranged at the lower end of the elastic memory alloy shifting piece 27.

When the device is used, firstly, a box to be packaged is placed on the support plate 10, the air pump 39 starts the suction disc 38 to adsorb the preservative film 32 on the rubber layer 36, the output end of the telescopic cylinder 37 moves to drive the suction disc 38 to move, the suction disc 38 moves to drive the preservative film 32 to move to the left end in the equipment cavity 7, the output end of the lifting cylinder 8 moves to drive the mop bottom 9 to move, the mop bottom 9 moves to drive the support plate 10 to move, so as to drive the box to move upwards, the electronic valve 45 is opened while the output end of the lifting cylinder 8 moves, inert gas is diffused from the air outlet 44, namely inert gas surrounds the box, so that oxidation of food after packaging is reduced, the box pushes against the preservative film 32 when moving upwards, the preservative film 32 is cut when moving upwards and contacting the cutting knife 41, the buffer 39 stops at the moment, the buffer 28 presses the upper end of the box to prevent the box from toppling during packaging, the rotation of the output end of the motor 16 drives the gear 15 to rotate, the gear 15 rotates to drive the gear ring 14 to rotate, the first fixing piece 22 rotates to drive the second fixing piece 21 to drive the air pump to move, so as to close the lower end of the support plate 32, and the box can be used repeatedly.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

The present invention and its embodiments have been described above, and the description is not intended to be limiting, and the drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides a closed tail formula inert gas filling type plastic wrap packing carton, includes parcel main part (1) and inert gas filling mechanism (4), its characterized in that: the closed tail-closing inert gas filling type preservative film packaging box further comprises an upper top type annular shrinkage point type bottom sealing mechanism (2) and a self-cutting film-covering flattening mechanism (3), wherein the upper top type annular shrinkage point type bottom sealing mechanism (2) is arranged at the inner upper end of the packaging main body (1), the self-cutting film-covering flattening mechanism (3) is arranged at the lower end of the upper top type annular shrinkage point type bottom sealing mechanism (2), and the inert gas filling mechanism (4) is arranged at the lower end of the self-cutting film-covering flattening mechanism (3); go up top formula annular shrinkage point type back cover mechanism (2) including rotation type closed component (11), the type of opening and shutting transmission machine subassembly (12) and prevent empting and press subassembly (13), rotation type closed component (11) are located on top formula annular shrinkage point type back cover mechanism (2), open and shut transmission machine subassembly (12) are located on rotation type closed component (11), prevent empting and press subassembly (13) and locate the upper end of rotation type closed component (11).

2. The closed tailing type inert gas filling type preservative film packaging box according to claim 1, characterized in that: parcel main part (1) include that the packing material places mouth (5), encapsulation chamber (6), equipment chamber (7), lift cylinder (8), drag end (9), extension board (10) and discharge gate (47), in parcel main part (1) was located in equipment chamber (7), the upper end in equipment chamber (7) is located in encapsulation chamber (6), the packing material is placed mouth (5) and is located in equipment chamber (7), the inside lower extreme in equipment chamber (7) is located in lift cylinder (8), drag end (9) and locate the output of lift cylinder (8), extension board (10) are located and are dragged on end (9), the upper end in encapsulation chamber (6) is located in discharge gate (47).

3. The closed tailing type inert gas filling type preservative film packaging box according to claim 2, characterized in that: closed subassembly (11) of rotation type includes ring gear (14), gear (15), motor (16), ring (17), slider (18), stabilizer blade two (19) and annular spout (46), the inside lower extreme of encapsulation chamber (6) is located in annular spout (46), the one end of slider (18) slides and locates in annular spout (46), the other end of slider (18) is located in ring gear (14), the inside lower extreme of encapsulation chamber (6) is located in stabilizer blade two (19), on stabilizer blade two (19) is located in ring gear (17), the inside lower extreme of encapsulation chamber (6) is located in motor (16), the output of motor (16) is located in gear (15), ring gear (14) and gear (15) link to each other for mesh rotation.

4. The closed tailing type inert gas filling type preservative film packaging box according to claim 3, wherein: open and shut type driving machine subassembly (12) is including closed leaf (20), transmission return bend (21), mounting (22), mounting two (23) and mounting three (24), on ring gear (14) is located in mounting (22), on ring gear (17) is located in mounting three (24), the one end of closed leaf (20) is rotated and is cup jointed and locate on mounting three (24), the other end of closed leaf (20) is located in mounting two (23), the one end of transmission return bend (21) is rotated and is cup jointed and locate on mounting (22), the other end of transmission return bend (21) is rotated and is cup jointed and locate on mounting two (23).

5. The closed tailing type inert gas filling type preservative film packaging box according to claim 4, characterized in that: prevent empting and press subassembly (13) and dial piece (27) and buffer (28) including hinge (25), spring (26), elasticity memory alloy, the upper end of encapsulation chamber (6) is located in hinge (25), the one end that elasticity memory alloy dialled piece (27) is located on hinge (25), the other end downside that elasticity memory alloy dialled piece (27) is located in buffer (28), the upper end of encapsulation chamber (6) is located to the one end of spring (26), the lower extreme that elasticity memory alloy dialled piece (27) is located to the other end of spring (26).

6. The closed tailing type inert gas filling type preservative film packaging box according to claim 5, wherein: self-cutting tectorial membrane flattening mechanism (3) include plastic wrap flattening mechanism (29) and equal area cutting type adsorption type material loading subassembly (30), plastic wrap flattening mechanism (29) are located in equipment chamber (7), equal area cutting type adsorption type material loading subassembly (30) locate the lower extreme of encapsulation chamber (6).

7. The closed tailing type inert gas filling type preservative film packaging box according to claim 6, characterized in that: preservative film levelling mechanism (29) is including axis of rotation one (31), preservative film (32), axis of rotation two (33), axis of rotation three (34) and axis of rotation four (35), the inside wall lower extreme in equipment chamber (7) is located in rotation axis one (31), the inside wall upper end in equipment chamber (7) is located in rotation axis two (33) rotation, the inside wall upper end in equipment chamber (7) is located in axis of rotation three (34), the left side in axis of rotation two (33) is located in axis of rotation three (34), the inside wall upper end in equipment chamber (7) is located in axis of rotation four (35), the left side in axis of rotation three (34) is located in axis of rotation four (35), removable the locating of axis of rotation is on one (31) in axis of rotation (31).

8. The closed tailing type inert gas filling type preservative film packaging box according to claim 7, wherein: equal area cutting type adsorption material loading subassembly (30) include rubber layer (36), telescopic cylinder (37), sucking disc (38), air pump (39), flexible exhaust tube (40) and cutting knife (41), rubber layer (36) cup joint and locate on four (35) of axis of rotation, the inside upper end in equipment chamber (7) is located in telescopic cylinder (37), the output in telescopic cylinder (37) is located in sucking disc (38), the inside upper end in equipment chamber (7) is located in cutting knife (41), the lateral wall upper end in equipment chamber (7) is located in air pump (39), the input of air pump (39) is located to the one end of flexible exhaust tube (40), the other end through connection of flexible exhaust tube (40) is on sucking disc (38).

9. The closed tailing type inert gas filling type preservative film packaging box according to claim 8, wherein: inert gas filling mechanism (4) include inert gas storage jar (42), telescopic bellows (43), venthole (44) and electronic valve (45), lower extreme in equipment chamber (7) is located in inert gas storage jar (42), the output of inert gas storage jar (42) is located to the one end of telescopic bellows (43), venthole (44) are located and are dragged on end (9), the other end of telescopic bellows (43) link up and locate on venthole (44), electronic valve (45) are located on telescopic bellows (43).

10. The closed tailing type inert gas filling type preservative film packaging box according to claim 9, wherein: the buffer piece (28) is made of rubber.