CN107867427B - Closing device is vacuum-packed - Google Patents

Closing device is vacuum-packed Download PDF

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Publication number
CN107867427B
CN107867427B CN201711118131.XA CN201711118131A CN107867427B CN 107867427 B CN107867427 B CN 107867427B CN 201711118131 A CN201711118131 A CN 201711118131A CN 107867427 B CN107867427 B CN 107867427B
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China
Prior art keywords
sealing
electric heating
paper used
heating strip
conducting element
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CN201711118131.XA
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Chinese (zh)
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CN107867427A (en
Inventor
不公告发明人
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Shaanxi Yanfu Food Co.,Ltd.
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Fuzhou Siqi Technology Co Ltd
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Priority to CN201711118131.XA priority Critical patent/CN107867427B/en
Publication of CN107867427A publication Critical patent/CN107867427A/en
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Publication of CN107867427B publication Critical patent/CN107867427B/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B31/00Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
    • B65B31/04Evacuating, pressurising or gasifying filled containers or wrappers by means of nozzles through which air or other gas, e.g. an inert gas, is withdrawn or supplied
    • B65B31/06Evacuating, pressurising or gasifying filled containers or wrappers by means of nozzles through which air or other gas, e.g. an inert gas, is withdrawn or supplied the nozzle being arranged for insertion into, and withdrawal from, the mouth of a filled container and operating in conjunction with means for sealing the container mouth
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B51/00Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/10Applying or generating heat or pressure or combinations thereof
    • B65B51/14Applying or generating heat or pressure or combinations thereof by reciprocating or oscillating members
    • B65B51/146Closing bags

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Vacuum Packaging (AREA)

Abstract

The invention discloses a kind of vacuum packaging closing devices, when its vacuum degree only in vacuum pump work to cavity reaches predetermined value, cylinder just will do it movement for the open end hot sealing of packaging bag, so that present invention can ensure that the vacuum degree in vacuum bag is qualified, and the present invention, which is additionally provided with, to be carried out pushing fixed fixed mechanism for the position of the close open end to packaging bag, so that the present invention can drop out to avoid the product in packaging bag.

Description

Closing device is vacuum-packed
Technical field
The present invention relates to a kind of vacuum packaging closing devices.
Background technique
Air in packing container can be completely drawn out sealing by vacuum packaging closing device, maintain to subtract in bag in height Pressure condition, air starvation are equivalent to hypoxemia effect, microorganism are made not have life condition, and to reach, food is fresh, disease-free rotten occurs Purpose.
Current vacuum packaging closing device generally comprises a pedestal, a cover board, a vacuum pump and an enclosed mechanism, pedestal On be provided with for place be equipped with product packaging bag cavity, cover board for cover close on pedestal cavity to be sealed, vacuum The bleeding point of pump is connected by pipeline with cavity, and enclosed mechanism is arranged in cavity, and vacuum packaging closing device will be in use, will Packaging bag is placed into cavity, then covers cover board, is then turned on vacuum pump, and vacuum pump extracts the air in cavity out, vacuum Pump work for a period of time after, enclosed mechanism seals the open end of packaging bag, to complete the vacuum packaging of product.
But there is also following deficiencies when in use for above-mentioned vacuum packaging closing device: vacuum pump work for a period of time After (time span is previously set), that is, thinks that the vacuum degree in cavity is qualified, then just product is sealed, but this is only Gastight situation is fully sealed suitable for cavity, but in actual use, cavity can not be often fully sealed by cover board, always Can have some gaps enters air in cavity, in this way, after the time span set by vacuum pump work, in cavity It is unable to reach predetermined vacuum level, at this moment by packaging bag enclosing, it will so that the vacuum degree in packaging bag is unqualified, so that packet Residual air in packing is easy the foodstuff deterioration so that in packaging bag.
Summary of the invention
The technical problem to be solved by the invention is to provide a kind of vacuum packaging closing devices, can guarantee packaging bag Interior vacuum degree is qualified, and can drop out to avoid the product in packaging bag.
In order to solve the above technical problems, vacuum packaging closing device provided by the invention, it include a pedestal, a cover board, One vacuum pump and an enclosed mechanism, the cavity for placing the packaging bag that product is housed is provided on pedestal, and cover board is closed for covering To seal cavity on pedestal, the bleeding point of vacuum pump is connected by pipeline with cavity, is provided with one on the cover board Telescopic air bag is fixed with a third conducting element on air bag, the gas for air bag to be communicated with the atmosphere is provided on cover board Hole;
It is provided with one first groove in the cavity, one first conducting element and one second is provided in the first groove and is led Electric device, when cover plate lid is closed on pedestal, third conducting element is oppositely arranged with the first conducting element, the second conducting element;
It is provided in the cavity and is pushed for the position of the close open end to the packaging bag being put into cavity Fixed fixed mechanism;
The 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 Slot is provided with a mounting base in the second groove, and the setting of the first electric heating strip of paper used for sealing is provided with a cylinder in mounting base, on cover board, the Two electric heating strip of paper used for sealings are arranged on the piston rod of cylinder, and when cover plate lid is closed on pedestal, the first electric heating strip of paper used for sealing and the second electric heating are sealed Item is oppositely arranged;
The vacuum packaging closing device further includes an inflator pump, a relay, a solenoid valve, a switch, a power supply It is connected by pipeline with cavity with the gas outlet of a gas source, inflator pump;
First conducting element, the electromagnetic coil of solenoid 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, vacuum pump are sequentially connected in series forming circuit;
Gas source is connected by supply air line with cylinder, and the gas passage of solenoid valve is serially connected on supply air line;
The vacuum packaging closing device 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 Packaging bag equipped with product is placed into cavity, and is carried out down by position of the fixed mechanism to the close open end of packaging bag Pressing is fixed, so that the open end of packaging bag is located at the top of the first electric heating strip of paper used for sealing, then closes on pedestal cover plate lid, then closes Upper switch is powered on vacuum pump, and air bag gradually extends during vacuum pump vacuumizes cavity, when in cavity When vacuum degree reaches predetermined value, the length of air bag makes third conducting element connect with the first conducting element, the second conducting element Touching, at this time:
The coil of relay is powered so that the normally-closed contact of relay disconnects, and vacuum pump stops working;
Meanwhile the electromagnetic coil of solenoid valve is powered so that the gas passage of solenoid valve is connected, so that cylinder operation, cylinder Piston rod pushes the second electric heating strip of paper used for sealing mobile, 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 open end hot pressing of packaging bag Sealing;
Meanwhile inflator pump is powered on, inflator pump is to recessed interacvity air-filling, and after a certain period of time, air bag bounces back so that for inflation Three conducting elements are detached from the first conducting element and the second conducting element, so that solenoid 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 board and takes out the packaging bag that vacuum packaging is completed, be put into next be equipped with The packaging bag of product;After above-mentioned third conducting element is detached from the first conducting element and the second conducting element, the line of relay The normally-closed contact of relay is connected in circle power loss, so that vacuum pump restarts work;
The fixed mechanism includes a compression bar, and for compression bar close to the second groove and parallel with the first electric heating strip of paper used for sealing, compression bar is solid Surely two mounting rods are connected with, there are two mounting holes for setting on the bottom surface of cavity, and two mounting rods are mobilizable respectively to be plugged in In two mounting holes, be provided with a tension spring in each mounting hole, one end of each tension spring with the installation in respective mounting hole The bottom of bar is connected, and the other end of each tension spring is connected with the bottom of respective mounting hole;
The mounting base includes one first mounting base and one second mounting base, and the second mounting base is located at the first mounting base Top, the first electric heating strip of paper used for sealing are horizontally set on the upper surface of the second mounting base, and the mounting base further includes one for the The level angle of the second mounting base is adjusted when one electric heating strip of paper used for sealing is pushed by the second electric heating strip of paper used for sealing so that the first electric heating strip of paper used for sealing with The regulating mechanism that second electric heating strip of paper used for sealing is parallel to each other;
The regulating mechanism includes four guide posts being arranged on the upper surface of the first mounting base, in the second mounting base Setting is there are four pilot hole, and the aperture of pilot hole is slightly larger than the diameter of guide post, and four guide posts are mobilizable respectively to be plugged in In four pilot holes, be arranged with a pressure spring in every guide post, the both ends of each pressure spring respectively with the first mounting base and Two mounting bases offset.
After using the above structure, compared with prior art, the present invention having the advantage that
The present invention is suitable for open at one end and the closed packaging bag of the other end is vacuum-packed, and when packaging, will be equipped with The packaging bag of product is placed into cavity, is then closed on pedestal cover plate lid, is then closed a switch so that vacuum pump energization work Make, air pressure when vacuum pump gradually extracts the air in cavity out in cavity gradually decreases, and inside air bag is by stomata and outside Portion's atmosphere, in this way, form draught head between inside air bag and cavity so that air bag by air pressure promotion and stretch Long, with the continuous work of vacuum 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 degree in cavity reaches predetermined value, the length of air bag just can be with So that third 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 solenoid valve must conduct at this time, cylinder operation, and cylinder pushes the second electric heating strip of paper used for sealing mobile, 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 open end hot sealing of packaging bag;In this way, in the present invention, only when true in cavity Could be formed when reciprocal of duty cycle reaches predetermined value, between inside air bag and cavity enough pressure differences come so that air bag be elongated to it is enough Length is come so that third conducting element is in contact with the first conducting element, the second conducting element, and if cover board is not by cavity It is fully sealed, that is to say, that if there is gap air is entered in cavity, then, the pumpdown time of vacuum pump will Corresponding to extend, when only the vacuum degree in vacuum pump work to cavity reaches predetermined value, cylinder just will do it movement and will wrap The open end hot sealing of pack, in this way, can only extend the working time of vacuum pump also even if cavity is poorly sealed to protect The vacuum degree demonstrate,proved in packaging bag is qualified, be not in vacuum degree in cavity it is unqualified just by packaging bag hot sealing the case where, The vacuum degree in packaging bag is effectively ensured, to avoid residual air in packaging bag and make the foodstuff deterioration in packaging bag.
And in the present invention, it is provided with fixed mechanism, after packaging bag is put into cavity, fixed mechanism can be to packet The position of the close open end of pack carries out pushing fixation, thus can be to avoid the article in packaging bag in vacuum-packed mistake It is dropped out in Cheng Zhongcong packaging bag.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention (cover board does not cover conjunction when on pedestal);
Fig. 2 is structural schematic diagram of the invention (cover plate lid is closed when on pedestal);
Fig. 3 is structural schematic diagram of the invention (when enclosed mechanism seals product);
Fig. 4 is electrical block diagram of the invention;
Fig. 5 is another electrical block diagram of the invention;
Fig. 6 is gas circuit structure schematic diagram of the invention;
Fig. 7 is the structural schematic diagram of mounting base;
Fig. 8 is the A-A direction view in Fig. 1.
Specific embodiment
Present invention will be explained in further detail with reference to the accompanying drawings and detailed description.
As shown in FIG. 1 to FIG. 8, closing device is vacuum-packed in the present invention, it includes a pedestal 1, a cover board 2, a vacuum pump 3 With an enclosed mechanism, it is provided with the cavity 4 for placing the packaging bag that product is housed on pedestal 1, the bottom level of cavity 4, with Convenient for being horizontally arranged packaging bag, cover board 2 is closed on pedestal 1 for covering to seal cavity 4, and the bleeding point of vacuum pump 3 passes through pipe Road is connected with cavity 4, and a telescopic air bag 5 is provided on the cover board 2, is fixed with a third conductive element on air bag 5 Part 501 is provided with the stomata 6 for air bag 5 to be communicated with the atmosphere on cover board 2.
It is provided with one first groove 7 in the cavity 4, one first conducting element 8 and one is provided in 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, in this way may be used To prevent from accidentally touching the first conducting element 8 and the second conducting element 9, when the lid of cover board 2 closes on pedestal 1, third conducting element 501 It is oppositely arranged with the first conducting element 8, the second conducting element 9.
It is provided in the cavity 4 and is carried out down for the position of the close open end to the packaging bag being put into cavity 4 The fixed fixed mechanism of pressing.
The 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, is provided with one in cavity 4 Second groove 12 is provided with a mounting base 20 in second groove 12, and the first electric heating strip of paper used for sealing 10 is arranged in mounting base 20, the first electricity The bottom surface that item 10 is lower than cavity 4 is sealed, in this way, packaging bag will not be sealed with the first electric heating when packaging bag to be placed into cavity 4 Item 10 contacts, and is provided with a cylinder 13 on cover board 2, and the second electric heating strip of paper used for sealing 11 is arranged on the piston rod of cylinder 13, when cover board 2 covers It closing when on pedestal 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, in this way, in cylinder movement, cylinder Piston rod can push the second electric heating strip of paper used for sealing 11 it is mobile come so that 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 Open end clamps, by the open end hot sealing of packaging bag.
The vacuum packaging closing device further includes an inflator pump 14, a relay 15, a solenoid valve 16, one switch 17, the gas outlet of a power supply 18 and a gas source 19, inflator pump 14 is connected by pipeline with cavity 4.
First conducting element 8, the electromagnetic coil of solenoid 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, vacuum pump 3 are sequentially connected in series forming circuit.
Gas source 19 is connected by supply air line with cylinder 13, and the gas passage of solenoid valve 16 is serially connected on supply air line.
The vacuum packaging closing device 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 Packaging bag equipped with product is placed into cavity, and is carried out down by position of the fixed mechanism to the close open end of packaging bag Pressing is fixed, so that the open end of packaging bag is located at the top of the first electric heating strip of paper used for sealing, then closes on pedestal cover plate lid, wraps at this time There are spacing between pack and the first electric heating strip of paper used for sealing, the second electric heating strip of paper used for sealing, then close a switch so that vacuum pump is powered on, During vacuum pump vacuumizes cavity, the air pressure in cavity is gradually decreased, so that the gas between inside air bag and cavity Pressure difference is increasing, thus by draught head come so that air bag gradually extends, when the vacuum degree in cavity reaches predetermined value, gas The length of capsule can just make third conducting element be in contact with the first conducting element, the second conducting element, so that first leads Electric device and the second conducting element mutual conduction, following three movements of triggering at this time:
(1), the coil of relay is powered so that the normally-closed contact of relay disconnects, and vacuum pump stops working;
(2), the electromagnetic coil of solenoid valve is powered so that the gas passage of solenoid valve be connected, so that gas source is that cylinder supplies, So that cylinder operation, the piston rod of cylinder pushes the second electric heating strip of paper used for sealing mobile, 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 open end 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 open end hot sealing of packaging bag;
(3), inflator pump is powered on, and inflator pump is to recessed interacvity air-filling, and after a certain period of time, air bag bounces back so that third for inflation Conducting element is detached from the first conducting element and the second conducting element so that solenoid valve power-off is closed, the piston rod retraction of cylinder from And make the second electric heating strip of paper used for sealing return, in this way, may make third conducting element to be detached from after inflating the very short time in inflator pump First conducting element and the second conducting element, so that the second electric heating strip of paper used for sealing return, it can be to avoid the second electric heating strip of paper used for sealing and One electric heating strip of paper used for sealing is too long to packaging bag hot pressing time and the case where packaging bag is damaged, then open cover board and take out vacuum packaging The packaging bag of completion is put into next packaging bag equipped with product;The first conducting element is detached from above-mentioned third conducting element After the second conducting element, the normally-closed contact of relay is connected in the coil losing electricity of relay, so that vacuum pump is again It starts to work, in this way, vacuum pump is in running order when new packaging bag is put into cavity, it at this moment only need to be by cover board Lid is closed onto pedestal, can start that new packaging bag is vacuum-packed, easy to operate.
The fixed mechanism includes a compression bar 30, and compression bar 30 is close to the second groove 12 and flat with the first electric heating strip of paper used for sealing 10 Row, compression bar 30 are fixedly connected with two mounting rods 31, and there are two mounting hole 33, two mounting rods 31 for setting on the bottom surface of cavity 4 It is mobilizable respectively to be plugged in two mounting holes 33, a tension spring 32 is provided in each mounting hole 33, each tension spring 32 One end is connected with the bottom of the mounting rod 31 in respective mounting hole 33, the other end of each tension spring 32 with respective mounting hole 33 bottom is connected, in this way, compression bar is first lifted to (tension spring is stretched at this time) upwards when packaging bag to be put into cavity, Then packaging bag is placed into cavity, and the open end of packaging bag is passed through and is subsequently placed in the first electric heating strip of paper used for sealing below compression bar Top, compression bar is then unclamped, at this time since the active force of tension spring moves down compression bar, so that compression bar is by packaging bag close to opening The position at mouth end is pushed down, and can thus be dropped out to avoid the product in packaging bag from the open end of packaging bag.
The mounting base 20 includes one first mounting base 21 and one second mounting base 22, and the second mounting base 22 is located at first The top of mounting base 21, the first electric heating strip of paper used for sealing 10 are horizontally set in the second mounting base 22, and the mounting base 20 further includes one For adjusting the level angle of the second mounting base 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 so that The regulating mechanism 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, the regulating mechanism include being arranged first Four guide posts 23 on the upper surface of mounting base 21, four guide posts 23 are located at four corners of the first mounting base 21, There are four pilot holes 24, four pilot holes 24 to be located at four corners of the second mounting base 22 for setting in second mounting base 22, Guide post 23 and pilot hole 24 are arranged in a one-to-one correspondence, and the aperture of pilot hole 24 is slightly larger than the diameter of guide post 23, four guide posts 23 it is mobilizable respectively be plugged in four pilot holes 24, a pressure spring 25, each pressure spring 25 are arranged in every guide post 23 Both ends offset respectively with the first mounting base 21 and the second mounting base 22, in this way, if installing the first electric heating strip of paper used for sealing and the Deviation is generated when two electric heating strip of paper used for sealings and 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 Push the second electric heating strip of paper used for sealing push and the second electric heating strip of paper used for sealing and the first electric heating strip of paper used for sealing are clamped the bag with to packaging bag into When 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 make the second mounting base by Lower pressure and move down, at this time due to the aperture of pilot hole be slightly larger than guide post diameter, then being pushed in the second mounting base Power and when moving down the second mounting base can according to the level angle of the second electric heating strip of paper used for sealing come and adjust automatically its own level inclination, So that the first electric heating strip of paper used for sealing can be substantially parallel with the second electric heating strip of paper used for sealing, in this way, the first electric heating strip of paper used for sealing and the second electric heating strip of paper used for sealing energy The open end of packaging bag is completely sealed, is avoided the occurrence of since 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 the case where making some region of the open end of packaging bag not be hot pressed sealing.
The foregoing is only a description of the preferred application of the present invention, but is not to be construed as the limit to claim System, structure of the invention can have other variations, be not limited to above structure.In short, all in independent claims of the invention Protection scope in made various change be within the scope of the invention.

Claims (1)

1. a kind of vacuum packaging closing device, it includes a pedestal (1), a cover board (2), a vacuum pump (3) and an enclosed mechanism, Be provided on pedestal (1) for place be equipped with product packaging bag cavity (4), cover board (2) for cover close on pedestal (1) with Cavity (4) are sealed, the bleeding point of vacuum pump (3) is connected by pipeline with cavity (4), it is characterised in that: the cover board (2) it is provided with a telescopic air bag (5) on, is fixed with a third conducting element (501) on air bag (5), cover board is arranged on (2) There is the stomata (6) for air bag (5) to be communicated with the atmosphere;
One first groove (7) is provided in the cavity (4), be provided in the first groove (7) one first conducting element (8) and One second conducting element (9), when cover board (2) lid closes on pedestal (1), third conducting element (501) and the first conducting element (8), the second conducting element (9) is oppositely arranged;
It is provided in the cavity (4) and is carried out down for the position of the close open end to the packaging bag being put into cavity (4) The fixed fixed mechanism of pressing;
The 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), is provided in cavity (4) One second groove (12), the second groove (12) is interior to be provided with a mounting base (20), and the first electric heating strip of paper used for sealing (10) is arranged in mounting base (20) it on, being provided on cover board (2) cylinder (13), the second electric heating strip of paper used for sealing (11) is arranged on the piston rod of cylinder (13), when Cover board (2) lid closes when on pedestal (1), and 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);
The vacuum packaging closing device further includes an inflator pump (14), a relay (15), a solenoid valve (16), a switch (17), the gas outlet of a power supply (18) and a gas source (19), inflator pump (14) is connected by pipeline with cavity (4);
First conducting element (8), the electromagnetic coil of solenoid valve (16), power supply (18), inflator pump (14), relay (15) line Circle, the second conducting element (9) are sequentially connected in series;
Switch (17), power supply (18), the normally-closed contact of relay (15), vacuum pump (3) are sequentially connected in series forming circuit;
Gas source (19) is connected by supply air line with cylinder (13), and the gas passage of solenoid valve (16) is serially connected in supply air line On;
The vacuum packaging closing device 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 There is the packaging bag of product to be placed into cavity, and lower pressing is carried out by position of the fixed mechanism to the close open end of packaging bag It is fixed, so that the open end of packaging bag is located at the top of the first electric heating strip of paper used for sealing, then cover plate lid is closed on pedestal, is then closed out It closes so that vacuum pump is powered on, air bag gradually extends during vacuum pump vacuumizes cavity, when the vacuum in cavity When degree reaches predetermined value, the length of air bag makes third conducting element be in contact with the first conducting element, the second conducting element, this When:
The coil of relay is powered so that the normally-closed contact of relay disconnects, and vacuum pump stops working;
Meanwhile the electromagnetic coil of solenoid valve is powered so that the gas passage of solenoid valve is connected, so that cylinder operation, the piston of cylinder Bar pushes the second electric heating strip of paper used for sealing mobile, so that the first electric heating strip of paper used for sealing and the second electric heating strip of paper used for sealing are close by the open end hot pressing of packaging bag Envelope;
Meanwhile inflator pump is powered on, inflator pump is to recessed interacvity air-filling, and after a certain period of time, air bag bounces back so that third is led for inflation Electric device is detached from the first conducting element and the second conducting element so that solenoid valve power-off is closed, the piston rod retraction of cylinder to So that the second electric heating strip of paper used for sealing return, then opens cover board and take out the packaging bag that vacuum packaging is completed, it is put into next equipped with product Packaging bag;After above-mentioned third conducting element is detached from the first conducting element and the second conducting element, the deactivation coil of relay The normally-closed contact of relay is connected in electricity, so that vacuum pump restarts work;
The fixed mechanism include a compression bar (30), compression bar (30) close to the second groove (12) and with the first electric heating strip of paper used for sealing (10) In parallel, compression bar (30) is fixedly connected with two mounting rods (31), on the bottom surface of cavity (4) there are two settings mounting hole (33), two Root mounting rod (31) is mobilizable respectively to be plugged in two mounting holes (33), is provided with a tension spring in each mounting hole (33) (32), one end of each tension spring (32) is connected with the bottom of the mounting rod (31) in respective mounting hole (33), each tension spring (32) the other end is connected with the bottom of respective mounting hole (33);
The mounting base (20) includes that one first mounting base (21) and one second mounting base (22), the second mounting base (22) are located at The top of first mounting base (21), the first electric heating strip of paper used for sealing (10) is horizontally set on the upper surface of the second mounting base (22), described Mounting base (20) further include one for adjusting second 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) The level angle of mounting base (22) is so that the adjusting machine that the 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 Structure;
The regulating mechanism includes four guide posts (23) being arranged on the upper surface of the first mounting base (21), the second installation There are four pilot hole (24), the aperture of pilot hole (24) is slightly larger than the diameter of guide post (23), four guiding for setting on seat (22) Column (23) is mobilizable respectively to be plugged in four pilot holes (24), is arranged with a pressure spring (25) on every guide post (23), The both ends of each pressure spring (25) offset with the first mounting base (21) and the second mounting base (22) respectively.
CN201711118131.XA 2017-11-14 2017-11-14 Closing device is vacuum-packed Active CN107867427B (en)

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Application Number Priority Date Filing Date Title
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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109094864B (en) * 2018-07-19 2020-09-22 马鞍山市新桥工业设计有限公司 Food package bag sealing machine
CN110920971A (en) * 2019-11-20 2020-03-27 西安奕斯伟硅片技术有限公司 Vacuum air extraction device, vacuum packaging device and method
CN112623369B (en) * 2020-12-30 2022-09-06 湖南追一智能机械有限公司 Bagging equipment with open bag lock material structure

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CN206024133U (en) * 2016-09-27 2017-03-15 谭志高 A kind of easy reliable vacuum machine heating wire fixing device
CN107187638A (en) * 2017-06-13 2017-09-22 中山市小榄镇丰兴包装机械厂 Vacuum packing machine vacuum system and its control method

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JP2010013166A (en) * 2008-07-07 2010-01-21 Tosei Electric Corp Vacuum packing apparatus
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CN206024133U (en) * 2016-09-27 2017-03-15 谭志高 A kind of easy reliable vacuum machine heating wire fixing device
CN107187638A (en) * 2017-06-13 2017-09-22 中山市小榄镇丰兴包装机械厂 Vacuum packing machine vacuum system and its control method

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