CN1163848A - Packaging machine for packaging different with heat-shrinking plastic film - Google Patents

Abstract

The invention relates to a packing machine using thermal plastic film (13) to package different products (16), which includes a device for cutting and sealing the film (13) and tunnel (14) for subjecting the sealing film covering on the products (16) to be packed to bear thermal shrinkage. The invention is characterized in that: the cutting/sealing device (12) is fitted between a first conveying device (15) for loading the products (16) and a second conveying device (16) for receiving the products (16), and the thermal shrinkage tunnel (14) is arranged under the first conveying device (15), a third conveying device (19) is fitted through the tunnel (14) and is used for sending the packed products (16) out of the packing machine, and the second conveying device (17) can move to and for between a first high position and a second low position, wherein when at the first high position, the second conveying device is coplanar with the first conveying device (15), and at the second low position, the second conveying device (17) is coplanar with the third conveying device (15).

Description

Wrapping machine with packaging different with heat-shrinking plastic film

The present invention relates to the wrapping machine of packing different product in single lap thermal contractible plastic film.

Those skilled in the art is familiar with the technology of packing different product in the single lap plastic sheeting very much.

Such first kind of packaging system comprises by cutting and sealing arrangement cuts and seals two unlimited sides of single lap film, thereby form and adorn sealing of product to be packaged in one, described cutting/sealing arrangement is made of a framework, this framework has relative rod, and low tension current is by described rod.

Then, make sealing of such formation, in the tunnel,, make the plastic sheeting pyrocondensation on product to be packaged by compulsory hot air circulate by a tunnel.

Said system is suitable for forming the continuous technology of the package of gratifying capacity rating (per hour number of packages), and still, the length of its overall dimension is bigger, the sizable investment of customer requirement.

According to second kind of system, in the employed wrapping machine, the cutting of single lap plastic sheeting/sealing step and film carry out in a chamber in the pyrocondensation step on the product to be packaged, in this chamber, be provided with a thermal source and hot air circulation unit, film cutting and seal bar are installed in this top, chamber.

Described chamber can be sealed by the hinged top lid that is provided with reverse rod, thereby forms a chamber that is used for cutting, sealing and the pyrocondensation of film.

Also be provided with a carrier between described chamber and top cover, it is used for supporting product at packaging step.

The product to be packaged that enters between the film is placed on the described carrier, falls top cover, makes cutting/seal strip and starts from the forced hot air circulating fan of described heating arrangement.

US4 for example, 104, to be particularly suitable for batch manufacturing, compact conformation, cost lower for this wrapping machine open and explanation in 848, but its shortcoming is, each user lifts top cover so that when taking out the packing of finishing from wrapping machine, the user will contact a large amount of hot airs, when rod is not cleaned and the temperature of rod is not regulated when suitable well, also will contact the smell from film thermal cutting/sealing step sometimes.

Basic purpose of the present invention provides a kind of wrapping machine, and it can provide whole advantages of above-mentioned tunnel type and top cap type wrapping machine, but has overcome their shortcoming again.

The wrapping machine of realizing above-mentioned purpose has the described feature of claim.

Can further illustrate 26S Proteasome Structure and Function feature of the present invention by consulting following accompanying drawing to the description of the embodiment of the invention, and the advantage that surmounts prior art.

Fig. 1-5 expression be in constitute in the some algorithms of packing on-cycle, according to the schematic front view of wrapping machine of the present invention;

Fig. 6 is the lateral plan of the wrapping machine shown in Fig. 1-5.

Consult accompanying drawing now, label according to wrapping machine of the present invention is 10, and its structure is made of a framework 11, and this frame support has two undercuts of plastic sheeting 13 to cut/seal bar 12, and a film pyrocondensation tunnel 14, air is heated and forced circulation as known mode with this in tunnel 14.Plastic sheeting 13 is single lap films, from around tube 28 feeds, is opened by the known device for opening 31 of those skilled in the art (Fig. 6) for its overlapped 29 and 30.

As shown in the figure, cutting/the seal bar 12 of film 13 is contained in first and enters between the conveyer 15 and second conveyer 17, product to be packaged enters conveyer 15 by first and is admitted to wrapping machine, second conveyer 17 and first conveyer, 15 coplanes, accept packaged, be cut and product 16 that sealing film is wrapped.

Feedway 17 is moved (reciprocating type) to the low level shown in Fig. 3 and 4 from a high position shown in Figure 1, on low level, shown in receive feedway 17 and the 3rd output conveyor 19 coplanes, the 3rd output conveyor 19 is sent wrapping machine with packaged product; The 3rd feedway 19 is arranged in first and enters feedway 15 below by 14 operations of pyrocondensation tunnel.

Consult the mode of operation of description of drawings below according to wrapping machine of the present invention.

Now consult Fig. 1, feedway 15,17 is rotated with the equidirectional shown in the arrow 20,21, and product 16 to be packaged is placed on and enters on the feedway 15, it is delivered to receive feedway 17.

Product 16 arrives and receives feedway 17 (as shown in Figure 2), passing through of the F1 of electro-optical tubes system testing product, when identical product 16 is placed on the reception feedway 17 fully, described electro-optical tubes system shuts down described reception feedway 17 and makes cutting/seal bar 12 closures of film 13, as described in arrow 22 it is moved in opposite directions.

Now consult Fig. 3, when the cutting of the film 13 that holds product 16/sealing step finished, rod 12 was opened once more, produces a pulse, and this pulse command reception feedway 17 is as shown in arrow 23 to the position that is displaced downwardly to output conveyor 19 coplanes; On this position, feedway 17 triggers micro-switch 27, makes feedway 17 begin to rotate (Fig. 4), simultaneously, makes to enter the feedway stall.

As shown in Figure 4, on this step during the course, receive feedway 17 and rotate, deliver to output conveyor 19 wrapping in the product 16 of plastic sheeting 13 in sealing with direction shown in the arrow 24, feedway 19 carrying product according to the direction of arrow 26 by pyrocondensation tunnel 14.The F2 of electro-optical tubes system testing product is at two conveyors 17, passing through between 19, when product 16 transfers on the feedway 19 that passes 14 runnings of pyrocondensation tunnel fully, described electro-optical tubes system makes feedway 17 move according to direction shown in the arrow 25, return a high position shown in Figure 5, also stop its rotation along the direction of arrow 24.

So far wrapping machine is got ready for new working cycle, arrives its high positions shown in Figure 5 when receiving feedway 17, when entering feedway 15 coplanes, transmit a pulse command, make two conveyors 15,17 along the running of direction shown in the arrow 20,21, begin a new working cycle.

Therefore, though wrapping machine structure of the present invention is very compact can be automatically, work continuously with high productivity.

The automatic system that constitutes some parts of wrapping machine does not describe in detail in this manual, and this is because it belongs to the technology that those skilled in the art should be grasped.

Claims (1)

1. pack the wrapping machine of different product (16) with thermal contractible plastic film (13) for one kind, this wrapping machine comprises cutting and sealing arrangement (12) and tunnel (14) that makes the sealing film that wraps on the product to be packaged (16) bear pyrocondensation of film (13), it is characterized in that: described cutting/sealing arrangement (12) is contained in and makes first feedway (15) that product (16) enters and receive between second feedway (17) of described product (16), described pyrocondensation tunnel (14) is positioned at below described first feedway (15), the 3rd feedway (19) passes described tunnel (14) and installs, it is used for packaged product (16) is sent wrapping machine, described second feedway (17) can move back and forth between first high position and second low level, on first high position, described second feedway and first feedway (15) coplane, and on second low level, described second feedway (17) and the 3rd feedway (19) coplane.

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