Vacuum packaging equipment
Technical field
The present invention relates to a kind of vacuum packaging equipment.
Background technology
Air in packing container can be completely drawn out sealing by vacuum packaging equipment, be maintained in bag in height decompression shape
State, air starvation make microorganism not have life condition, to reach the mesh of fresh, the disease-free rotten generation of food equivalent to hypoxemia effect
's.
Current vacuum packaging equipment generally comprises a base, a cover plate, a vavuum pump and an enclosed mechanism, is set on base
The cavity for placing the packaging bag equipped with product is equipped with, cover plate is used to cover so that cavity to be sealed on base, vavuum pump
Bleeding point is connected by pipeline with cavity, and enclosed mechanism is arranged in cavity, and vacuum packaging equipment is in use, packaging bag is put
Put in cavity, then cover cover plate, be then turned on vavuum pump, vavuum pump extracts the air in cavity out, vacuum pump work one
After the section time, enclosed mechanism seals the openend of packaging bag, to complete the vacuum packaging of product.
But above-mentioned vacuum packaging equipment also has the following disadvantages when in use:In vacuum pump work (time for a period of time
Length is previously set) after, that is, think that the vacuum in cavity is qualified, then just product is sealed, but this is only applicable
Gastight situation is fully sealed in cavity, but in actual use, cavity can not be often fully sealed by cover plate, can always deposit
In some gaps air is entered in cavity, so, can not in cavity after the time span set by vacuum pump work
Reach predetermined vacuum level, at this moment by packaging bag enclosing, it will so that the vacuum in packaging bag is unqualified, so that packaging bag
Interior residual air, easily cause the foodstuff deterioration in packaging bag.
The content of the invention
The technical problem to be solved by the invention is to provide a kind of vacuum packaging equipment, and it can ensure in packaging bag
Vacuum is qualified.
In order to solve the above technical problems, vacuum packaging equipment provided by the invention, it includes an a base, cover plate, one true
Empty pump and an enclosed mechanism, the cavity for placing the packaging bag equipped with product is provided with base, and cover plate is used to cover the bottom of at
So that cavity to be sealed on seat, the bleeding point of vavuum pump is connected by pipeline with cavity, and one is provided with described cover plate to stretch
The air bag of contracting, one the 3rd conducting element is fixed with air bag, be provided with cover plate for by the stomata of air bag and atmosphere;
One first groove is provided with described cavity, one first conducting element and one second is provided with the first groove and is led
Electric device, when cover plate is covered when on base, the 3rd conducting element is oppositely arranged with the first conducting element, the second conducting element;
Described enclosed mechanism includes one first electric heating strip of paper used for sealing and one second electric heating strip of paper used for sealing, and it is recessed to be provided with one second in cavity
Groove, a mounting seat is provided with the second groove, the first electric heating strip of paper used for sealing is arranged in mounting seat, and a cylinder is provided with cover plate, and
Two electric heating strip of paper used for sealings are arranged on the piston rod of cylinder, and when cover plate is covered when on base, the first electric heating strip of paper used for sealing and the second electric heating seal
Bar is oppositely arranged;
Described vacuum packaging equipment also includes an inflator pump, a relay, a magnetic valve, a switch, a power supply and one
Source of the gas, the gas outlet of inflator pump are connected by pipeline with cavity;
First conducting element, the magnet coil of magnetic valve, power supply, inflator pump, the coil of relay, the second conducting element according to
Secondary concatenation;
Switch, power supply, the normally-closed contact of relay, vavuum pump are sequentially connected in series to form loop;
Source of the gas is connect by supply air line and cylinders, and the gas passage of magnetic valve is serially connected on supply air line;
The vacuum packaging equipment is in use, first make the first electric heating strip of paper used for sealing and the second electric heating strip of paper used for sealing heating power, then by dress
The packaging bag for having product is placed into cavity so that the openend of packaging bag is located at the top of the first electric heating strip of paper used for sealing, then will lid
Plate is covered on base, is then closed a switch so that vavuum pump energization work, the gas during vavuum pump vacuumizes cavity
Capsule gradually extends, and when the vacuum in cavity reaches predetermined value, the length of air bag causes the 3rd conducting element and the first conduction
Element, the second conducting element are in contact, now:
The coil electricity of relay causes the normally-closed contact of relay to disconnect, and vavuum pump is stopped;
Meanwhile the magnet coil of magnetic valve is powered and causes the gas passage conducting of magnetic valve so that cylinder operation, cylinder
Piston rod promotes the movement of the second electric heating strip of paper used for sealing so that the first electric heating strip of paper used for sealing and the second electric heating strip of paper used for sealing are by the openend hot pressing of packaging bag
Sealing;
Meanwhile inflator pump energization work, inflator pump is to recessed interacvity air-filling, and after inflating certain time, air bag, which bounces back, causes the
Three conducting elements depart from the first conducting element and the second conducting element so that magnetic valve power-off is closed, the piston rod retraction of cylinder
So that the second electric heating strip of paper used for sealing return, then opens cover plate and takes out the packaging bag that vacuum packaging is completed, be put into next be equipped with
The packaging bag of product;After the 3rd above-mentioned conducting element departs from the first conducting element and the second conducting element, the line of relay
Circle dead electricity causes the normally-closed contact of relay to turn on, so that vavuum pump restarts work.
Preferably, described mounting seat includes one first mounting seat and one second mounting seat, the second mounting seat is positioned at the
The top of one mounting seat, the first electric heating strip of paper used for sealing are horizontally set on the upper surface of the second mounting seat, and described mounting seat also includes
One is used to adjust the level angle of the second mounting seat when the first electric heating strip of paper used for sealing is pushed by the second electric heating strip of paper used for sealing to cause first
The governor motion that electric heating strip of paper used for sealing and the second electric heating strip of paper used for sealing are parallel to each other.
Preferably, described governor motion includes four leads being arranged on the upper surface of the first mounting seat, the
Four pilot holes are provided with two mounting seats, the aperture of pilot hole is slightly larger than the diameter of lead, and four leads can live respectively
Dynamic is plugged in four pilot holes, is arranged with a stage clip on every lead, and the both ends of each stage clip are respectively with first
Mounting seat and the second mounting seat offset.
After above structure, the present invention compared with prior art, has the following advantages that:
The present invention is applied to one end open and the packaging bag of other end closing is vacuum-packed, and during packaging, will be equipped with
The packaging bag of product is placed into cavity, is then covered cover plate on base, is then closed a switch so that vavuum pump energization work
Make, air pressure when vavuum pump gradually extracts the air in cavity out in cavity gradually reduces, and inside air bag is by stomata and outside
Portion's atmosphere, so, draught head is formed between inside air bag and cavity, so that air bag is stretched by the promotion of air pressure
Long, with the continuous work of vavuum pump, the air pressure in cavity is constantly reduced so that the draught head between inside air bag and cavity is got over
Come bigger, so that air bag constantly extends, and when the vacuum in cavity reaches predetermined value, the length of air bag just can be with
So that the 3rd conducting element is in contact with the first conducting element, the second conducting element, so that the first conducting element and second
Conducting element is conducted, and now magnetic valve must conduct, cylinder operation, and cylinder promotes the movement of the second electric heating strip of paper used for sealing so that second
Electric heating strip of paper used for sealing and the first electric heating strip of paper used for sealing are by the openend hot sealing of packaging bag;So, in the present invention, only when true in cavity
Enough pressure differentials could be formed when reciprocal of duty cycle reaches predetermined value, between inside air bag and cavity make it that it is enough that air bag is elongated to
Length causes the 3rd conducting element to be in contact with the first conducting element, the second conducting element, and if cover plate is not by cavity
It is fully sealed, that is to say, that if there is gap so that air is entered in cavity, then, the pumpdown time of vavuum pump will
Corresponding to extend, when only the vacuum in vacuum pump work to cavity reaches predetermined value, cylinder can just be acted and will wrapped
The openend hot sealing of pack, so, even if cavity is poorly sealed, it also can only extend working time of vavuum pump to protect
The vacuum demonstrate,proved in packaging bag is qualified, is not in that vacuum in cavity is unqualified just by the situation of packaging bag hot sealing,
The vacuum in packaging bag has been effectively ensured, has caused the foodstuff deterioration in packaging bag so as to avoid residual air in packaging bag.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention (cover plate is not covered when on base);
Fig. 2 is the structural representation of the present invention (cover plate is covered when on base);
Fig. 3 is the structural representation of the present invention (when enclosed mechanism seals to product);
Fig. 4 is the electrical block diagram of the present invention;
Fig. 5 is another electrical block diagram of the present invention;
Fig. 6 is the gas circuit structure schematic diagram of the present invention;
Fig. 7 is the structural representation of mounting seat.
Embodiment
The present invention is described in more detail with reference to the accompanying drawings and detailed description.
As shown in Fig. 1~Fig. 7, vacuum packaging equipment of the present invention, it includes a base 1, a cover plate 2, a vavuum pump 3 and one
Enclosed mechanism, is provided with the cavity 4 for placing the packaging bag equipped with product on base 1, the bottom level of cavity 4, in order to
Horizontal positioned packaging bag, cover plate 2 are used to cover so that cavity 4 to be sealed on base 1, the bleeding point of vavuum pump 3 by pipeline with
Cavity 4 is connected, and a telescopic air bag 5 is provided with described cover plate 2, one the 3rd conducting element is fixed with air bag 5
501, it is provided with cover plate 5 for by the stomata 6 of air bag 5 and atmosphere.
One first groove 7 is provided with described cavity 4, one first conducting element 8 and one is provided with the first groove 7
The upper end of two conducting elements 9, the upper end of the first conducting element 8 and the second conducting element 9 is below the bottom surface of cavity 4, so may be used
To prevent false touch the first conducting element 8 and the second conducting element 9, when cover plate 2 is covered when on base 1, the 3rd conducting element 501
It is oppositely arranged with the first conducting element 8, the second conducting element 9.
Described enclosed mechanism includes one first electric heating strip of paper used for sealing 10 and one second electric heating strip of paper used for sealing 11, and one is provided with cavity 4
Second groove 12, a mounting seat 20 is provided with the second groove 12, the first electric heating strip of paper used for sealing 10 is arranged in mounting seat 20, the first electricity
The bottom surface that bar 10 is less than cavity 4 is sealed, so, when packaging bag is placed into cavity 4, packaging bag will not seal with the first electric heating
Bar 10 is contacted, and a cylinder 13 is provided with cover plate 2, and the second electric heating strip of paper used for sealing 11 is arranged on the piston rod of cylinder 13, when cover plate 2 covers
Closing when on base 1, the first electric heating strip of paper used for sealing 10 is oppositely arranged with the second electric heating strip of paper used for sealing 11, so, when cylinder acts, cylinder
Piston rod can promote the movement of the second electric heating strip of paper used for sealing 11 to cause the second electric heating strip of paper used for sealing 11 and the first electric heating strip of paper used for sealing 10 by packaging bag
Openend clamps, by the openend hot sealing of packaging bag.
Described vacuum packaging equipment also includes an inflator pump 14, a relay 15, a magnetic valve 16, one switch 17, one
The source of the gas 19 of power supply 18 and one, the gas outlet of inflator pump 14 are connected by pipeline with cavity 4.
First conducting element 8, the magnet coil of magnetic valve 16, power supply 18, inflator pump 14, the coil of relay 15, second
Conducting element 9 is sequentially connected in series.
Switch 17, power supply 18, the normally-closed contact of relay 15, vavuum pump 3 are sequentially connected in series to form loop.
Source of the gas 19 is connected by supply air line with cylinder 13, and the gas passage of magnetic valve 16 is serially connected on supply air line.
The vacuum packaging equipment is in use, first make the first electric heating strip of paper used for sealing and the second electric heating strip of paper used for sealing heating power, then by dress
The packaging bag for having product is placed into cavity so that the openend of packaging bag is located at the top of the first electric heating strip of paper used for sealing, then will lid
Plate is covered on base, is left spacing between now packaging bag and the first electric heating strip of paper used for sealing, the second electric heating strip of paper used for sealing, is then closed out
Close and cause vavuum pump energization work, during vavuum pump vacuumizes cavity, the air pressure in cavity gradually reduces so that gas
Draught head between intracapsular portion and cavity is increasing, so as to gradually be extended come air bag by draught head, when in cavity
When vacuum reaches predetermined value, the length of air bag can just cause the 3rd conducting element and the first conducting element, the second conduction
Element is in contact so that the first conducting element and the second conducting element mutual conduction, following three actions of now triggering:
(1), the coil electricity of relay causes the normally-closed contact of relay to disconnect, and vavuum pump is stopped;
(2), the magnet coil of magnetic valve, which is powered, causes the gas passage conducting of magnetic valve so that source of the gas supplies for cylinder,
So that cylinder operation, the piston rod of cylinder promotes the movement of the second electric heating strip of paper used for sealing, and the second electric heating strip of paper used for sealing and the first electric heating strip of paper used for sealing will wrap
The openend of pack clamps so that the first electric heating strip of paper used for sealing and the second electric heating strip of paper used for sealing are by the openend hot sealing of packaging bag;
(3), inflator pump energization work, inflator pump is to recessed interacvity air-filling, and after inflating certain time, air bag, which bounces back, causes the 3rd
Conducting element departs from the first conducting element and the second conducting element so that magnetic valve power-off is closed, the piston rod retraction of cylinder from
And cause the second electric heating strip of paper used for sealing return, so, it may be such that the 3rd conducting element departs from after the very short time is inflated in inflator pump
First conducting element and the second conducting element, so that the second electric heating strip of paper used for sealing return, can avoid the second electric heating strip of paper used for sealing and
The situation that one electric heating strip of paper used for sealing is long to packaging bag hot pressing time and packaging bag is damaged, then open cover plate and take out vacuum packaging
The packaging bag of completion, it is put into next packaging bag equipped with product;Depart from the first conducting element in the 3rd above-mentioned conducting element
After the second conducting element, the coil losing electricity of relay causes the normally-closed contact of relay to turn on, so that vavuum pump is again
Start working, so, when new packaging bag is put into cavity, vavuum pump is in running order, at this moment only need to be by cover plate
Cover on base, you can start that new packaging bag is vacuum-packed, it is easy to operate.
Described mounting seat 20 includes one first mounting seat 21 and one second mounting seat 22, and the second mounting seat 22 is located at first
The top of mounting seat 21, the first electric heating strip of paper used for sealing 10 are horizontally set in the second mounting seat 22, and described mounting seat 20 also includes one
For adjusting the level angle of the second mounting seat 22 when the first electric heating strip of paper used for sealing 10 is pushed by the second electric heating strip of paper used for sealing 11 to cause
The governor motion that first electric heating strip of paper used for sealing 10 and the second electric heating strip of paper used for sealing 11 are parallel to each other, described governor motion include being arranged on first
Four leads 23 on the upper surface of mounting seat 21, four leads 23 are located at four corners of the first mounting seat 21 respectively,
Four pilot holes 24 are provided with second mounting seat 22, four pilot holes 24 are located at four corners of the second mounting seat 22 respectively,
Lead 23 and pilot hole 24, which correspond, to be set, and the aperture of pilot hole 24 is slightly larger than the diameter of lead 23, four leads
23 it is mobilizable respectively be plugged in four pilot holes 24, a stage clip 25, each stage clip 25 are arranged with every lead 23
Both ends respectively offseted with the first mounting seat 21 and the second mounting seat 22, so, if installing the first electric heating strip of paper used for sealing and the
Deviation is produced during two electric heating strip of paper used for sealings and make it that the first electric heating strip of paper used for sealing and the second electric heating strip of paper used for sealing are not parallel to each other, then, in cylinder
The second electric heating strip of paper used for sealing is promoted to push and so that the second electric heating strip of paper used for sealing is clamped the bag to enter to packaging bag with the first electric heating strip of paper used for sealing
During row hot sealing, the second electric heating strip of paper used for sealing can apply lower pressure to the first electric heating strip of paper used for sealing, will also cause the second mounting seat by
Lower pressure and move down, now due to pilot hole aperture be slightly larger than lead diameter, then pushed in the second mounting seat
Power and when moving down the second mounting seat can according to the level angle of the second electric heating strip of paper used for sealing come and the adjust automatically level inclination of its own,
To enable the first electric heating strip of paper used for sealing to be substantially parallel with the second electric heating strip of paper used for sealing, so, the first electric heating strip of paper used for sealing and the second electric heating strip of paper used for sealing energy
The openend of packaging bag is completely sealed, avoided the occurrence of because the first electric heating strip of paper used for sealing and the second electric heating strip of paper used for sealing are not substantially parallel
And some region of the openend of packaging bag is caused not to be hot pressed the situation of sealing.
Only just the present invention is made that explanation using preferable example above, but is not to be construed as the limit to claim
System, structure of the invention can have other changes, be not limited to said structure.In a word, all independent claims in the present invention
Protection domain in the various change made it is within the scope of the present invention.