CN102803077B

CN102803077B - Device for vacuum packaging, particularly of food products

Info

Publication number: CN102803077B
Application number: CN201180010037.7A
Authority: CN
Inventors: M·斯科拉罗
Original assignee: Extru SA
Current assignee: Extru SA
Priority date: 2010-02-19
Filing date: 2011-01-18
Publication date: 2014-11-19
Anticipated expiration: 2031-01-18
Also published as: CN102803077A; WO2011101190A1; ES2452516T3; CO6571859A2; EP2536637B1; RU2546227C2; EP2536637A1; US20120297729A1; BR112012020487A2; RU2012140012A

Abstract

A packaging device (1a, 1b), particularly for manually or automatically packaging trays containing food products or technical materials which can be inserted, by means of a loading platform (13), between longitudinally folded parts of a single-folded film (7) and comprising means for thermal bonding or heat-sealing for sealing, and at least one nozzle for producing a vacuum and/or for introducing the gas or mixture, and a vacuum chamber (3). The single-folded film (7) is fixed and the vacuum chamber is movable and comprises at least one movable presser arranged above the single-folded film. The presser is forced on top of the tray and is provided with means adapted to convey the streams of air and/or gas. The return of air into the vacuum chamber (3) occurs by means of a series of holes provided between a transverse heat-sealing bar and the wall of the vacuum chamber (3) that is parallel thereto.

Description

For vacuum packaging, be particularly useful for the vacuum-packed equipment of food

Technical field

The present invention relates to packaging facilities, relate in particular to the packaging facilities for packaged food and packaging industry material.

Background technology

Current, vacuum packing machine as you know, it has bell chamber and comprises the vacuum pump that is connected to this chamber, and this chamber is also referred to as vacuum chamber, conventionally the preformed sack of three limit openings is arranged in vacuum chamber, and food is just placed in sack.

In the machine of these known types, then, the sack of wherein having placed food is placed in vacuum chamber, then in vacuum chamber, produce vacuum, after this at the free edge place of preform sack, carry out heat seal.

This known technology is essential uses preformed sack, so sack will have and the sizable size of food, thereby need to have suitable labour power.

Therefore, exist a plurality of control steps, in order to reach these steps of vacuum packaging of food, need spended time; In addition, if packing occurs in controlled atmosphere, gas can slattern mostly, because gas is not only dispersed in sack, and major part is dispersed in vacuum chamber.

EP603704 is also known, wherein, by the film that uses plastic material to make, the packing of food occurs, and film transmission is by folding station, to obtain bilayer film, then carries out heat seal and forms pocket.

Before loading food and sealing, with size or the capacity requiring, obtain these pockets.

After heat seal and shaping pocket, load and seal and cut thus obtained pocket or sack: yet, this scheme is quite complicated, other operation that must sequentially stand in order to carry out film that plastic material makes, and this scheme comprises a plurality of stations that separate.

In addition, such scheme comprises heat or the cold shaping of plastic sheeting, by means of nozzle, load liquid product, flour or fine particle materials, therefore, shown in can not considering to use, scheme is loaded the solid product with predetermined, for example, sliced meat, meat, stripping and slicing cheese, and the pallet that contains food and non-food stuff.

In addition, in described known scheme, in order to reach sealing pocket or sack, must make pocket or sack by each control step, therefore at each station, need centering sack best, so that operating process is best and reach desirable requirement.

EP0405718 is also known, it has described a kind of scheme, this scheme has illustrated the packing device that is particularly useful for food or industrial materials packing, food or industrial materials can be inserted between the longitudinal folding part of single folding film from film open side, this device comprises hot adhesion or thermosealed device, it is substantially L-shaped, so that at longitudinal side of opening wide and its cross side place sealing film, has at least a nozzle to be used for forming vacuum and/or introduces gas or compound.

EP0832819B1 is also known, it requires the senior interest to the disclosures in Italian patent application AL960002 of 26 submissions September in 1996, this patent description comprise the packing device of vacuum chamber, vacuum chamber can open to receive at least single film of rolling over of certain length, need packaged material to insert wherein, and chamber is hermetically closing correspondingly, after this, just can form vacuum and/or introduce gas or compound, make the film of a part or certain length be pocket sample shape, also be provided with apparatus for heat sealing, it is arranged in vacuum chamber and operates, at least one nozzle placement is at vacuum chamber place, with after vacuum chamber is closed towards unlimited longitudinal side and/or the cross side of film length.

This scheme also has shortcoming unavoidably, because have been found that formed micro-gauffer in the step process of heat-seal film, this may throw into question in seal process, and the attractive in appearance of packaging external appearance degenerated.

In addition, in film, gas flow is not good, has therefore reduced the efficiency of device.

Finally, when operator pulls plastic tab, thin slice may present off-square and arrange.

Also to point out another problem: in bell chamber, provide vacuum, while therefore forming vacuum in sack, must partly compensate this vacuum with gas; Yet, if overcompensate is just opened bell chamber in heat seal step process.

Because operator carrys out maneuvering system with variable especially balance, so, pocket that introducing forming or the gas volume in sack can not accurately be controlled.

Therefore be still retained in gas absolute value in the sack of formation and the amount of relative value (%) and extremely can change, be difficult to be controlled, this forms a series of sacks or packing inflation more or less or venting, depending on various situations.

If must often change package form, problem is just worse.

At film, be heat sealed and on cross side in cut heat seal step process, found another problem, for the working direction of film itself: because film is often made by heat-shrinkable materials, so film can shrink, reduced its width, this can hinder and hold the pallet that will enter.

Therefore, pallet can arrive and find a space that is not enough to hold it, and this causes film to redirect towards sack open side, longitudinally on heat seal bar, is stopping, and causes machine to stop, for clearing up and having wasted the time.

Finally, should be noted that, for structural reason, the phenomenon that air turns back in bell chamber or vacuum chamber usually occurs in the region away from heat seal bar, or consistent with vacuum ports by means of the use of triple valve, but this does not optimize the transmission of bell chamber indoor moveable.

Summary of the invention

Target of the present invention is to solve above-mentioned technical matters, eliminate cited various shortcoming in background technology, the invention provides a kind of equipment, it can obtain the vacuum packaging of technical products or food or the vacuum packaging of compensation, the all sliced meat in this way of so-called food, meat, stripping and slicing cheese, the pallet of food and non-food stuff is housed, therefore the gas in sack can be optimized, sack or the packing of even inflation can be obtained like this.

In this target, the object of this invention is to provide a kind of equipment, even if operator was not subject to the Special Training of the adjustment of packing format change, also can use this equipment.

Another object is to provide a kind of equipment, and it allows pallet to insert best in the film of single folding, and this film is heat seal cutting on cross side previously.

Therefore another object is to provide a kind of equipment, and its permission is inserted pallet in sack best, avoids machine to stop and has wasted the time for cleaning.

Another object is to provide a kind of equipment that adds above-mentioned feature, simple in its structure, uses reliable and safety.

This target and above-mentioned these objects and more clearly other object that will become hereinafter, can reach by packaging facilities, this equipment is used for especially manually or the pallet of food or industrial materials is automatically housed, food or industrial materials can be inserted between the longitudinal folding part of single folding film by means of weighted platform, this equipment comprises hot adhesion or the apparatus for heat sealing for sealing, and at least one is for generation of vacuum and/or for introducing the nozzle of gas or compound, and vacuum chamber, it is characterized in that, described single folding film is fixed, described vacuum chamber can move transverse to described pallet direction of insertion, it comprises at least one compressor, this compressor can move on described single folding film, its reinforcing is on the top of described pallet, and be provided with the device that is suitable for transmitting air and/or gas flow, by means of a series of being arranged on, form the transverse heat seal rod of described hot adhesion device and the hole between parallel vacuum chamber wall with it, air is turned back in described vacuum chamber.

Accompanying drawing explanation

By means of the limiting examples in accompanying drawing, show four special embodiment, from below, to the detailed description of these four specific embodiments, it is more clear that other features and advantages of the present invention will become, wherein:

Fig. 1 is the side isometric view of installing in the embodiment of the present invention;

Fig. 2 is the cutaway view along this device of Fig. 1 center line II-II intercepting, in the state that this device is opened in vacuum chamber;

Fig. 3 is the view that is similar to upper figure, in the state that the pallet of this figure in single folding film is opened, is placed on to vacuum chamber is inserted into;

Fig. 4 is the view that is similar to upper figure, this figure in vacuum chamber close, compressor is placed in the state of single folding film top;

Fig. 5 is the cutaway view along this device of Fig. 4 center line V-V intercepting;

Fig. 6 is the birds-eye view of this device, wherein, in order to make this figure more understand and can understand, has omitted the paired supporting member for single folding film;

Fig. 7 is the part sectional view that is arranged in the pallet in vacuum chamber and is suitable for the device of transmission cavity room air and/or gas flow;

Fig. 8 is the cutaway view along this device of Fig. 1 center line II-II intercepting, in the state that this device is opened in vacuum chamber;

Fig. 9 is the view that is similar to upper figure, in the state that the pallet of this figure in single folding film is opened, is placed on to vacuum chamber is inserted into;

Figure 10 is the view that is similar to upper figure, this figure in vacuum chamber close, compressor is placed in the state of single folding film top;

Figure 11 is the cutaway view along this device of Figure 10 center line XI-XI intercepting;

Figure 12 is the birds-eye view of this device, wherein, in order to make this figure more understand and can understand, has omitted the paired supporting member for single folding film;

Figure 13 to 15 is with the semi-sictional view birds-eye view that is arranged in the vacuum chamber of the pallet in vacuum chamber and is suitable for the device of transmission cavity room air and/or gas flow in each adsorbed.

The specific embodiment

Referring to figs. 1 through 7, Reference numeral 1a represents to be used in particular for the packaging facilities of industrial materials or food, and industrial materials or food represent with Reference numeral 2.

Equipment 1a comprises bell vacuum chamber, and this vacuum chamber represents by Reference numeral 3, and it consists of bottom container 4 and closable upper cap 5 substantially; Be used for airtight belt or packing seal 6 around the perimeter of container 4 and lid 5.

This device is used single folding film 7, so this film has first closed longitudinal side 8 and second longitudinal side 9 of opening wide.

The first L shaped heat seal bar 10 is arranged in bell vacuum chamber 3, and a side is adjacent to the entrance 11 of food; Substantially L-shaped cutting blade (not shown) side direction is adjacent to the first heat seal bar 10 layouts, and two straight lines of shape L are parallel to respectively and arrange perpendicular to the first heat seal bar 10.

Industrial materials or food 2 are stored in suitable pallet 12, and pallet is placed on weighted platform 13, and platform is subject to power driven or movement easily in appropriate device, for example, on roller bed, move.

Single folding film 7 keeps opening wide by means of a pair of supporting member 14a, 14b, and weighted platform 13 is just inserted in this between supporting member 14a, 14b; This can move by means of the suitable handwheel 15 that is suitable for adjusting their mutual positions close to each other to supporting member 14a, 14b.

Equipment 1a comprises that at least one is suitable for pulling the device of single folding film 7, and this device consists of suitable electrical motor 16, and electrical motor 16 activates roller 17, and roller 17 coordinates with complementary roller 18, makes single folding film 7 by between these two rollers.

Electrical motor 16, roller 17 and complementary roller 18 are supported by suitable arm, and this arm highlights from suitable fixing base 19.

Paired supporting member 14a, 14b and handwheel 15 and weighted platform 13 are also fixing with respect to base 19, and like this, single folding film 7 only can slide along the axis of weighted platform 13 in its use procedure, but it is fixing with respect to other possible motion.

Yet vacuum chamber 3 can move along the axis transverse to single folding film 7 working direction, this direction is consistent with the direction of insertion of pallet 12.

Bell vacuum chamber 3 is arranged in suitable frame 20, this framework consists of a column 21a, 21b and pair of beams 22a, 22b, a pair of the first cylinder 23a of beam supporting, 23b, this is suitable for mobile upper cap 5 to the first cylinder, and supporting guide 24 be suitable for making framework 20 with the suitable complementary guide 25 of base 19 shape all-in-one-pieces on slide.

The shelf 26 rising is arranged in bottom container 4, is adjacent to the end of weighted platform 13, and the shelf of this rise is suitable for supporting the pallet 12 in bell vacuum chamber 3.

In upper cap 5 inside, have at least one compressor 27, it moves by means of a pair of suitable the second cylinder 28a, 28b, the second cylinder 28a, 28b be adjacent to upper beam 22a inside and outside, region be connected to upper cap 5.

A pair of the 3rd cylinder 29a, 29b and a pair of the 4th cylinder 30a, 30b are also arranged on the outside face of upper cap 5, they are arranged along mutually perpendicular direction, and be suitable for activating the second heat seal bar 31, this heat seal bar about 10 one-tenth Mirror Symmetries of the first heat seal bar arrange.

Compressor 27 is provided with the device that is suitable for transmitting air and/or gas flow, and these devices consist of a plurality of ribs 32, and these ribs 32 are outstanding from device along pallet 12 directions, and arranges transverse to single folding film 7 working direction.

These rib 32 the most handy rubber are made, to can be bonded in 33 places, edge of pallet 12, therefore formation is suitable for the passage 34 that allows air and/or gas pass through.

Advantageously, compressor 27 moves together with the opening and closing of bell vacuum chamber 3.The shape of compressor 27 and function can be better in the interior formation vacuum of packing 35, and allow to introduce better and more consistently gas wherein.

In addition, the motion of compressor can be suitable for the height of pallet 12, and the angle 36 that prevents from being inflated to the such packing of air bag 35 in introducing gas process arrives the upper height of pallets 12: in the upper window of therefore avoiding allowing appreciiable heat seal 37 be positioned at packing 35, therefore avoid the packaging external appearance utmost point not attractive in appearance, yet this inaesthetic outward appearance can be seen in background technology.

Packing device further consists of the device that is suitable for transmitting air and/or gas flow, this device consists of nozzle 38, nozzle and bell vacuum chamber 3 form one, and be contained in hermetically in box-shaped etcetera 39, this etcetera 39 is arranged in two and half shells, and this two and half shell is lateral to bell vacuum chamber 3 along the axis projection perpendicular to single folding film working direction out.

Like this, single folding film 7 is limited, and the free end 40 that makes second longitudinal side 9 of opening wide is restricted up and down nozzle, when gas is introduced, forces gas to enter and forms the sack of packing 35, washes away inside and then flows out and enter in bell vacuum chamber 3.

Guarantee to have obtained thus vacuum, and guarantee the air in sack that filling thereafter and replacement be equipped with product, by list folding film 7 is engaged on nozzle 38 more or less, keep the pulling system of single folding film 7 in static simultaneously, use long nozzle just can easily revise the size of the sack that forms packing 35.

Obviously, make bell vacuum chamber 3 keep the application force of the cylinder of closing to be greater than the application force of heat seal cylinder, and the shape that supports their framework 20 similarly is closed cage.

Therefore can form vacuum whole or part, and with gas compensation until bar pressure, avoid, as working in the highly unstable pressure span for gas filling sack of being occurred in background technology, using compressor just can in whole batch, obtain identical packing simultaneously.

In addition, device comprises a plurality of for allowing air turn back to the hole 41 in bell vacuum chamber 3, to after packing 35 heat seals, make vacuum chamber get back to bar pressure.These holes 41 are arranged between the first heat seal bar 10 and the adjacent wall 42 of bell vacuum chamber 3.

Thus, just after heat seal, obtained cooling to heat seal 37 simultaneously, therefore prevented that packing 35 from retracting.

With reference to the Fig. 8 to 15 previously having quoted, Reference numeral 1b represents to be used in particular for the packing device of industrial materials or food, and industrial materials or food represent with Reference numeral 2.

Device 1b comprises bell vacuum chamber, and this vacuum chamber represents by Reference numeral 3, and it consists of bottom container 4 and closable upper cap 5 substantially; Be used for airtight belt or packing seal 6 around the perimeter of container 4 and lid 5.

The first transverse heat seal rod 10a is positioned near the entrance of bell vacuum chamber 3, or rather, is positioned at the entrance 11 that bell vacuum chamber 3, one sides are adjacent to food; Cutting blade (not shown) side direction is adjacent to the first transverse heat seal rod 10a and arranges.

Industrial materials or food 2 can be stored in suitable pallet 12, and pallet is placed on weighted platform 13, and platform is subject to power driven or movement easily in appropriate device, for example, upper mobile at roller bed (roller-way).

As a kind of, substitute, industrial materials or food 2 can directly be arranged on weighted platform 13, so that the packing that there is no pallet 12 to be directly provided.

Single folding film 7 keeps opening wide by means of a pair of supporting member 14a, 14b, and weighted platform 13 is just between this is to supporting member 14a, 14b; This can move by means of the suitable handwheel 15 that is suitable for adjusting their mutual positions close to each other to supporting member 14a, 14b.

Device 1b also comprises that at least one is suitable for pulling the device of single folding film 7, and this device consists of suitable motors 16, and electrical motor 16 activates roller 17, and roller 17 coordinates with complementary roller 18, makes single folding film 7 by between these two rollers.

Electrical motor 16, roller 17 and complementary roller 18 are supported by suitable arm, and projection is out from suitable fixing base 19 for this arm.

Paired supporting member 14a, 14b and handwheel 15 and weighted platform 13 are fixing with respect to base 19, and like this, single folding film 7 only can slide along the axis of weighted platform 13 in its use procedure, but it is fixing with respect to other possible motion.

Vacuum chamber 3 is arranged in suitable frame 20, this framework 20 consists of a column 21a, 21b and pair of beams 22a, 22b, a pair of the first cylinder 23a of beam supporting, 23b and guide 24, this is suitable for mobile upper cap 5 to the first cylinder, guide 24 be suitable for making framework 20 with the suitable complementary guide 25 of base 19 shape all-in-one-pieces on slide.

The shelf 26 rising is arranged in bottom container 4, is adjacent to the end of weighted platform 13, and the shelf of this rise is suitable for pallet 12 to be bearing in bell chamber 3.

As a kind of, substitute, single folding film 7 can keep static, bell vacuum chamber 3 to move with respect to single folding film 7.

Also, in the outer surface of upper cap 5, have a pair of the 3rd cylinder 29a, 29b, they are suitable for activating the second transverse heat seal rod 31a, and this second heat seal bar becomes Mirror Symmetry about the first transverse heat seal rod 10a and arranges.

As a kind of, substitute, the first transverse heat seal rod 10a and the second transverse heat seal rod 31a can be arranged in bell vacuum chamber 3 outsides.

Like this, can advantageously obtain more tall and thin structure, make the 3rd cylinder 29a, 29b be arranged in bell vacuum chamber 3 outsides, can make the interior available useful volume of bell vacuum chamber 3 increase.

In bell vacuum chamber 3, there is first longitudinal heat seal bar 10a, to roll over unlimited longitudinal side 9 of film 7 corresponding to the list of food, and can intersect at the heat seal of being carried out by transverse heat seal rod 10a.

Side direction is adjacent to first longitudinal heat seal bar 10b, there is a cutting blade, outer surface at lid 5 has a pair of the 4th cylinder 30a, 30b, and they are suitable for activating second longitudinal heat seal bar 31b, and this heat seal bar becomes Mirror Symmetry about first longitudinal heat seal bar 10b and arranges.

Like this, just likely along the horizontal direction with respect to single folding film 7 direction of slips one by one fill order roll over a plurality of heat seals of film 7, so that before carrying out vacuumizing, prepare a plurality of pallets 12, then, to intersecting at single longitudinal heat seal of all transverse heat seal, carry out vacuumizing.

Compressor 27 is provided with the device that is suitable for transmitting air and/or gas flow, and this device consists of a plurality of ribs 32, and these ribs out, and are arranged transverse to the working direction of single folding film 7 along the projection from device of the direction of pallet 12.

These rib 32 the most handy rubber are made, to can be bonded to the edge 33 of pallet 12, have formed and have been suitable for the passage 34 that allows air and/or gas pass through.

Compressor 27 advantageously moves with the opening and closing of bell vacuum chamber 3.The shape of compressor 27 and function make it possible to better in the interior acquisition vacuum of packing 35, and allow to introduce better and more consistently gas wherein.

In addition, the motion of compressor can be suitable for the height of pallet 12, and the angle 36 that prevents from being inflated to the such packing of air bag 35 in gas introducing process arrives the upper height of pallets 12: therefore, on the upper window of avoiding allowing appreciiable heat seal 37 be positioned at packing 35, therefore, avoid occurring inaesthetic outward appearance, and this inaesthetic outward appearance can be in sight in background technology.

Packing device also consists of the device that is suitable for transmitting air and/or gas flow, these devices consist of nozzle 38, nozzle 38 forms one with bell vacuum chamber 3, and be contained in hermetically in the box-shaped etcetera 39 being arranged in two and half shells, two and half shells are lateral to 3 projections of bell vacuum chamber out along the axis of the axis that advances perpendicular to single folding film.

Like this, single folding film 7 is locked, make the free end 40 of second longitudinal side 9 of opening wide be limited in nozzle up and down, therefore,, when gas is introduced, force gas to enter the sack that forms packing 35, wash away sack inside, then flow out and enter in bell vacuum chamber 3.

In addition, device comprises a plurality of for allowing air turn back to the hole 41 in bell vacuum chamber 3, to after packing 35 heat seals, make air turn back to bar pressure.These holes 41 are arranged between the first transverse heat seal rod 10a and the adjacent wall 42 of bell vacuum chamber 3.

In practice, have found that, the present invention has reached fixed target and object, designed a kind of device, the packing that it uses single folding film just can obtain vacuum or revise atmosphere, wherein, forming the sack of this packing or the gas in pocket is optimized, so packing can be inflated equably, can also on a plurality of pallets, carry out vacuumizing simultaneously.

Can move that bell vacuum chamber 3 makes rapidly and easily revise and form the sack of packing or the size of pocket becomes possibility, because operator only needs according to the position of width movable frame 20 and the complex of the element relevant to bell vacuum chamber 3 of wanting packaged pallet 12 in this case, this is without any other thing of contact, its result, the parking period of machine is almost nil.

Obviously, this device can be controlled by suitable device mechanical and/or electronics, so that the ideal position of framework 20 is pre-determined in one or more presets, like this, packing 35 for each type, along with the packing arriving on weighted platform (13) changes, just likely by means of computing machine, automatically set the position of framework 20.

Therefore, in the adjustment training of packing format change, be not subject to the operator of Special Training can use this to install yet, device allows pallet to insert best in single folding film previous good seal and that cut on cross side, therefore, allow pallet to be inserted in sack best, and avoided machine parking period and be cleaning lost hours.

Finally, this apparatus structure is simple, safe and reliable.

Obviously, the present invention is easy to make numerous modifications and variations, and all such modifications and variation are all within the scope of attached claims.

Therefore, for example, can consider to make framework 20 to keep fixing, and single folding film 7 can laterally and with respect to working direction be moved.

In the situation of the technical characterictic heel Reference numeral of mentioning in any claim, including in of these Reference numerals, only in order to improve the intelligibility to claims, therefore, so Reference numeral is to the annotation by each element of designated like this by means of example, without any the effect of restriction.

In example embodiment below, the individual characteristics providing for particular example, in fact can exchange with other the different characteristic being present in other example embodiment.

In addition, should be noted that, in patent forming process, be considered as known any content, should be understood to advocate, and be the theme that will abandon.

Material therefor and the size that forms the indivedual parts of the present invention, can be determined more suitably according to special requirement certainly.

In embodiment shown in the various devices of carrying out some difference in functionality do not need only to coexist in certainly, but itself may reside in many embodiment, comprise those embodiment that do not illustrated.

Be indicated as being favourable, easily or those features of similar characteristics also can omit, or replace by suitable feature.

The application requires the senior interest to disclosures in Italian patent application No.TV2010A000019 and No.TV2010A000117, herein to introduce the content of these two patent applications referring to mode.

Claims

1. be used for manually or the packaging facilities (1a of the pallet of food or industrial materials is automatically housed, 1b), the pallet that food or industrial materials are housed can be inserted between the longitudinal folding part of single folding film (7) by means of weighted platform (13), this packaging facilities comprises hot adhesion or the thermosealed device for sealing, and at least one is for generation of vacuum and/or for introducing the nozzle (38) of gas or compound, and vacuum chamber (3), it is characterized in that, described single folding film (7) is fixed, described vacuum chamber (3) can move transverse to described pallet (12) direction of insertion, and comprise at least one compressor (27), this compressor can be upper mobile at described single folding film (7), described compressor reinforcing is on the top of described pallet (12), and be provided with the device that is suitable for transmitting gas flow, by means of a series of holes that are arranged between the transverse heat seal wall excellent and parallel described vacuum chamber with it that forms described hot adhesion or thermosealed device, air is turned back in described vacuum chamber (3).

2. equipment as claimed in claim 1 (1a), is characterized in that, described vacuum chamber is bell vacuum chamber (3), and it consists of bottom container (4) and closable upper cap (5); Be applicable to airtight belt or packing seal (6) around the perimeter of described container (4) and described upper cap (5), second longitudinal side (9) that described single folding film (7) has first closed longitudinal side (8) and opens wide, described single folding film (7) keeps unlimited by the existence of paired supporting member (14a, 14b), as described weighted platform (13) motor-driven or that movably install, be inserted in this between supporting member, paired described supporting member (14a, 14b) moves close to each other by means of the handwheel (15) that is suitable for adjusting their mutual alignments.

3. equipment as claimed in claim 2 (1a), it is characterized in that, described equipment comprises that at least one is suitable for pulling the device of described single folding film (7), the described device that is suitable for pulling described single folding film (7) consists of electrical motor (16), the roller (17) that described motor activated coordinates with complementary roller (18), force described single folding film (7) by between described roller, the roller (18) of described roller (17) and described complementation is supported by arm, described arm highlights from fixing base (19), paired described supporting member (14a, 14b), described handwheel (15) is also connected with described arm with described weighted platform (13).

4. equipment as claimed in claim 2 (1a), it is characterized in that, described bell vacuum chamber (3) transversely moves in the axis of described single folding film (7) working direction, and described direction is consistent with the direction of insertion of pallet (12) that is suitable for holding described industrial materials or food (2).

5. equipment as claimed in claim 3 (1a), it is characterized in that, described bell vacuum chamber (3) is arranged in framework (20), this framework is comprised of paired column (21a, 21b) and paired crossbeam (22a, 22b), and described crossbeam is supporting respectively paired the first cylinder (23a, 23b) that is suitable for mobile described upper cap (5) and is being suitable for allowing described framework (20) at the guide (24) with the upper slip of the complementary guide of base (19) shape all-in-one-piece (25).

6. equipment as claimed in claim 5 (1a), it is characterized in that, the shelf (26) rising is arranged in described bottom container (4), it is adjacent to the end of described weighted platform (13), the shelf of this rise is suitable for supporting the described pallet (12) in described bell vacuum chamber (3), in upper cap (5) internal placement, there is described at least one compressor (27), described compressor is by means of the second paired cylinder (28a, 28b) move, described the second cylinder (28a, 28b) be adjacent to described paired crossbeam (22a, be connected to the inside and outside, region of the upper beam 22b) (22a) described upper cap (5).

7. equipment as claimed in claim 6 (1a), is characterized in that, described equipment comprises: L shaped and be arranged in the first heat seal bar (10) in bell described vacuum chamber (3), a side is adjacent to the entrance (11) of food; Cutter, described cutter side direction is adjacent to described the first heat seal bar (10) and arranges, the outer surface that paired the 3rd cylinder (29a, 29b) and paired the 4th cylinder (30a, 30b) are arranged in described upper cap (5), and arrange along mutually perpendicular direction, be suitable for activating the second heat seal bar (31), described the second heat seal bar (31) becomes Mirror Symmetry ground to arrange about described the first heat seal bar (10).

8. equipment as claimed in claim 7 (1a), it is characterized in that, the device that is suitable for transport gas stream described in described compressor (27) consists of a plurality of ribs (32), these ribs are outstanding from described compressor (27) along described pallet (12) direction, and arrange transverse to described single folding film (7) working direction, described rib (32) is made with rubber, to can be bonded in the edge (33) of described pallet (12), locate, therefore formation is suitable for the passage (34) that allows gas pass through.

9. equipment as claimed in claim 8 (1a), is characterized in that, described compressor (27) moves with the opening and closing of bell described vacuum chamber (3).

10. equipment as claimed in claim 1 (1a), it is characterized in that, described at least one nozzle (38) forms one with bell described vacuum chamber (3), and be contained in hermetically in the etcetera (39) of box-shaped, this etcetera is set to two and half shells, and half shell highlights along being lateral to described bell vacuum chamber (3) perpendicular to described single axis of rolling over the axis that advances of film.

11. equipment as claimed in claim 7 (1a), it is characterized in that, described equipment comprises that a plurality of air that allow turn back to the hole (41) in bell described vacuum chamber (3), to make vacuum chamber get back to bar pressure after packing (35) heat seal, described a plurality of holes are arranged between described the first heat seal bar (10) and the adjacent wall (42) of described vacuum chamber (3).

12. as above-mentioned equipment claimed in claim 5 (1a), it is characterized in that, described equipment is controlled by device machinery and/or electronics, so that the ideal position of described framework (20) is pre-determined in one or more presets, like this, for the packing (35) of each type, along with the packing arriving on described weighted platform (13) changes, can automatically set by means of computing machine the position of described framework (20).

13. equipment as claimed in claim 12 (1a), is characterized in that, described framework (20) also laterally moves with respect to the working direction of described single folding film (7).

14. equipment as claimed in claim 1 (1b), it is characterized in that, described single folding film (7) forms at least two parts, and described at least two part end wises are folding and hold the described pallet (12) that food and industrial materials (2) are housed, described hot adhesion or apparatus for heat sealing are suitable for respect to described pallet (12) along the folded described part that circumferentially seals described single folding film (7), described at least one nozzle (38) is suitable for providing vacuum and/or is suitable for introducing gas or compound in described vacuum chamber (3), described vacuum chamber (3) holds the described pallet (12) between the folded described part that is inserted in described single folding film (7), so that described single folding film (7) and described vacuum chamber (3) can be relative to each other, direction of insertion transverse to described pallet (12) is mobile in described vacuum chamber (3), described hot adhesion or apparatus for heat sealing comprise a plurality of independently heat seal bar (10a, 31a, 10b, 32b), working direction with respect to described single folding film (7), at least one in them is horizontal and at least one in them is for longitudinally.

15. equipment as claimed in claim 14 (1b), it is characterized in that, described vacuum chamber (3) is bell, by bottom container (4) and upper cap (5), formed, it is upper that described upper cap (5) can be closed to described container (4), for airtight belt or packing seal (6), is circumferentially inserted between described container (4) and described upper cap (5).

16. equipment as claimed in claim 15 (1b), it is characterized in that, described equipment comprises paired supporting member (14a, 14b), paired described supporting member (14a, 14b) is mobile to open described single folding film (7) close to each other by means of the handwheel (15) that is suitable for adjusting their mutual alignments, described weighted platform (13) is inserted between paired described supporting member (14a, 14b), and described single folding film (7) has first longitudinal side (8) of closing and second longitudinal side (9) of opening wide.

17. equipment as claimed in claim 16 (1b), it is characterized in that, described equipment at least comprises electronic device (16), described electronic device is suitable for pulling the described roller (17) that film (7) and actuating coordinate with complementary roller (18) of singly rolling over, described single folding film (7) passes through between described roller, described electronic device (16), their the arm supportings that highlight by the base from fixing (19) of the roller (18) of described roller (17) and described complementation, paired described supporting member (14a, 14b), described handwheel (15) is connected with base (19) with described weighted platform (13).

18. equipment as claimed in claim 17 (1b), it is characterized in that, described vacuum chamber (3) is arranged in framework (20), this framework consists of paired column (21a, 21b) and paired crossbeam (22a, 22b), described crossbeam is correspondingly supported to the first right cylinder (23a, 23b), the first cylinder is suitable for mobile described upper cap (5), and guide (24) is suitable for making described framework (20) sliding with base (19) shape all-in-one-piece guide (25) is upper.

19. equipment as claimed in claim 18 (1b), it is characterized in that, described vacuum chamber (3) can move along the axis that extends substantially transversely to described single folding film (7) working direction, and the axis of described substantial lateral is consistent with the direction of insertion of described pallet (12).

20. equipment as claimed in claim 19 (1b), is characterized in that, described at least one compressor (27) can engage the described pallet (12) in upper area.

21. equipment as claimed in claim 20 (1b), it is characterized in that, the described device that is suitable for transport gas stream comprises a plurality of ribs (32), described rib is given prominence to and is arranged transverse to the working direction of described single folding film (7) along the direction of described pallet (12), described rib (32) is made by rubber, to be bonded in the edge (33) of described pallet (12), locate, thereby form a plurality of passages (34) of allowing gas pass through of being suitable for.

22. equipment as claimed in claim 21 (1b), it is characterized in that, in described container (4), there is the shelf (26) of rise the end that is adjacent to described weighted platform (13), this shelf is suitable for supporting the described pallet (12) in described vacuum chamber (3), described compressor (27) is internally arranged in described upper cap (5) and locates, and can be mobile by means of the second paired cylinder (28a, 28b), described the second cylinder (28a, 28b) is externally connected to the described upper cap (5) in the region that is adjacent to crossbeam (22a).

23. equipment as claimed in claim 22 (1b), is characterized in that, described compressor (27) can jointly move with the opening and closing of described vacuum chamber (3).

24. equipment as claimed in claim 23 (1b), it is characterized in that, described at least one nozzle is integrally connected to described vacuum chamber (3), described at least one nozzle (38) is contained in box-shaped etcetera (39) hermetically, this etcetera (39) is arranged in two and half shells, and the described half shell laterally axis from described vacuum chamber (3) along the axis perpendicular to described single folding film (7) working direction highlights.

25. equipment as claimed in claim 24 (1b), it is characterized in that, described equipment comprises the first transverse heat seal rod (10a), described the first transverse heat seal rod (10a) is arranged near the entrance (11) of described vacuum chamber (3), cutting blade is laterally adjacent to described the first transverse heat seal rod (10a), on the outside face of described upper cap (5), have paired the 3rd cylinder (29a, 29b) that is suitable for activating the second transverse heat seal rod (31a), described the second transverse heat seal rod (31a) becomes Mirror Symmetry ground to arrange about described the first transverse heat seal rod (10a).

26. equipment as claimed in claim 25 (1b), it is characterized in that, described equipment comprises: first longitudinal heat seal bar (10b), described first longitudinal heat seal bar (10b) is arranged in described vacuum chamber (3), so that described second longitudinal side (9) of rolling over film (7) corresponding to the described list of food; Cutting blade, described cutting blade side direction is adjacent to described first longitudinal heat seal bar (10b) and arranges, on the outside face of described upper cap (5), have paired the 4th cylinder (30a, 30b) that is suitable for activating second longitudinal heat seal bar (31b), described second longitudinal heat seal bar (31b) becomes Mirror Symmetry ground to arrange about described first longitudinal heat seal bar (10b).

27. equipment as claimed in claim 25 (1b), it is characterized in that, described equipment comprises: a plurality of for allowing air turn back to the hole (41) in described vacuum chamber (3), so that after packing (35) heat seal, make vacuum chamber (3) get back to bar pressure, described a plurality of holes (41) are arranged between described the first transverse heat seal rod (10a) and the adjacent wall (42) of bell described vacuum chamber (3).

28. equipment as claimed in claim 18 (1b), it is characterized in that, described equipment is controlled by device machinery and/or electronics, so that the ideal position of described framework (20) is pre-determined in one or more presets, like this, for the packing (35) of each type, along with the packing arriving on described weighted platform (13) changes, can automatically set by means of computing machine the position of described framework (20).

29. equipment as claimed in claim 28 (1b), is characterized in that, described framework (20) can also laterally move with respect to the working direction of described single folding film (7).

30. equipment as claimed in claim 1, is characterized in that, described in the gas that is suitable for transmitting in the device of transport gas stream comprise air.