CN104768852B - Pallet sealing device and heating unit thereof - Google Patents
Pallet sealing device and heating unit thereof Download PDFInfo
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- CN104768852B CN104768852B CN201380057662.6A CN201380057662A CN104768852B CN 104768852 B CN104768852 B CN 104768852B CN 201380057662 A CN201380057662 A CN 201380057662A CN 104768852 B CN104768852 B CN 104768852B
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- heating element
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Abstract
The present invention discloses a kind of pallet sealing device sealing disposable pallet with thermoplasticity diaphragm seal.Described pallet sealing device possesses: base body, and it possesses above and entrance, is included in the described pallet formed above and accommodates cavity；Heating unit, the heating of described diaphragm seal is fused to described pallet and accommodates the frame of the described pallet accommodated in cavity by it.Described heating unit includes thin-belt electric heating element, and it has the interarea of given width, is formed with the corresponding closed-curve shape of frame shape with described pallet.Described electric heating element is when described diaphragm seal welding, the interarea of described electric heating element is along all frames of described pallet, described diaphragm seal is placed in therebetween, arranged opposite with the frame of described pallet so that the heat that the interarea of electric heating element produces electric heating element is applied to described diaphragm seal.
Description
Technical field
Related application
The application applies for Korea S's special permission Room on November 5th, 2012, and according to quoting of carrying out herein, its content is complete
Its priority, based on the korean patent application comprised in the application the 2012-0124290th, is advocated by portion.
The present invention relates to pallet sealing device, particularly to the one frame by the peristome periphery at pallet (tray)
Heating and welding heat plastic film (" diaphragm seal ") such that it is able to pallet sealing device that pallet is sealed and for this
Plant the heating unit of pallet sealing device.
Background technology
Recently, such as in the restaurant such as take-away, fast food restaurant or market etc., in order to be packaged in the state of disposable pallet
The food such as the diet of band water, frangible food are provided to client, are currently in use pallet sealing device.Particularly when food is entered
Row packs, then can take care of food for a long time, will not go bad because of air, it is simple to cold preservation keeping food, movable in the wild
Time, also allow for carrying and keeping food, therefore, be proposed domestic pallet sealing device recently.
Illustrate the axonometric chart of known pallet sealing device in FIG.
If with reference to Fig. 1, conventional pallet sealing device includes: diaphragm seal supply department, and it is wound into putting
Multiple roller bearings 101 of the thermoplasticity diaphragm seal RO of scroll state；Base body (base body) 100, it is with being inserted into pallet
The pallet of T accommodates cavity (tray accommodation hole) 102；Cap unit 200, it can be incorporated into institute to rotary motion
State above base body 100；Heating plate (heating plate) 300.
Described heating plate 300 is formed with tubular aluminum or rustless steel, is combined with electric heating element at the back side of heating plate 300
(electric heating element) (not shown).If accessing electric power to described electric heating element, then at described electricity
Hot body occurs heat, by means of this heat, described heater plate to determined temperature (such as, 160 DEG C to 180 DEG C).At described lid
Below unit 200, accommodate in described diaphragm seal supply department and described pallet and be configured with cutting knife 201 between cavity 102.
As described diaphragm seal, mainly use by polyethylene terephthalate (polyethylene
Terephthalate:PET) composite membrane (dry that thin film and polypropylene (polypropylene:PP) thin film are constituted
laminated film).It addition, described disposable pallet T is typically by PP or PET molding, at peristome periphery, there is limit
Frame.
When sealing pallet T, user opens the power supply of described sealing device 10, wait described heating plate 300 by means of
Electric heating element (not shown) and reach determined temperature (such as, 160 DEG C to 180 DEG C).
Then, the described pallet T being loaded with food being inserted described pallet and accommodates cavity 102, from diaphragm seal, supply department draws
Go out diaphragm seal, configure diaphragm seal so that cover the peristome of pallet T.Then, close the cap unit 200 of pallet sealing device 10,
So, described diaphragm seal is by cover the state pruning of described pallet T, and being installed in the heating plate 300 below cap unit 200 will
Diaphragm seal heats and is fused to the frame of described pallet T.Therefore, the food contained in pallet T is hermetically sealed so that not with outward
Portion's air contact.
But, for aforesaid known pallet sealing device 10, there is following several major issue.
First, for making diaphragm seal be fused to disposable pallet, described heating plate 300 should be made to be heated to described diaphragm seal fusing point
Above temperature, the most this heating consumes a longer time and mass energy.It addition, the heating plate 300 once heated is in welding
Cool down the most rapidly after completing, possess latent heat (latent heat) for a long time, thus cause various problem discussed below.
If illustrated, for the food service tray sealing device of correlative technology field, heating plate 300 should be able to be abundant
Cover sealed object pallet, also support or in-built electrical hot body and associated components, thus the area of heating plate 300 is big, and compare
Thick.Such as, for the food service tray sealing device can bought on market, heating plate has about 300cm2(15㎝×20㎝)
Above area and the thickness of about more than 1.It is to say, the volume ratio of heating plate is bigger.
As it has been described above, need heater plate bigger for volume to making diaphragm seal be fused to the temperature needed for disposable pallet
Degree, such as, be heated to about 160 DEG C to 180 DEG C, therefore, for conventional pallet sealing device, to the closeest after plant-grid connection
Time needed for envelope is long, and power consumption is the highest.
It practice, the power consumption that original food service tray sealing device uses is roughly about 550W to 1,000W scope, utilize
The alternating current power supply of 110V or 220V.Further, since this power consumption, using heating plate initial heating configured as described above to as one
About 160 DEG C to 180 DEG C of the temperature range of the secondary airtight middle use of property pallet, it usually needs the long period of more than about 5 minutes.
Therefore, at the needs such as restaurant etc. repeatedly and by irregular time interval, i.e. according to circumstances and with time shorter
Between interval or long period interval perform in the environment of disposable pallet sealing operation, in order to shorten needed for heating plate time
Between, need heating plate to be held in pre-Warm status.Therefore, even if in the case of not using sealing device during the long period,
Also power supply is needed to be held in ON state.Thus energy resource consumption is big.It addition, use as mentioned above for the heating rapidly of heating plate
High power consumption, thus it is said that in general, directly use as the alternating current power supply of 110V or 220V commonly using power supply, this existence causes making
The probability that user gets an electric shock.
The problem being even more important in original food service tray sealing device is to be as noted previously, as the volume of heating plate greatly,
After welding terminates, heating plate remains latent heat (latent heat) for a long time, and heating plate cooling needs considerable time.Just
For conventional food service tray sealing device, it is well known that due to latent heat, heating plate naturally cools to heat front temperature, needs
It is about the time of heating required time more than 2 times, thus results in various problem.
First, along with latent heat keeps in heating plate for a long time, user contacts heating plate because not noting, is burned
Probability is high.It addition, when at the restaurant etc. repeatedly using described food service tray sealing device continuously, need keeping latent heat
Continue or heating plate repeatedly under state, thus even part around heating plate also can be overheated.
It addition, during pallet seals, the even weld (that is, the patent part frame portion of food service tray) of diaphragm seal
Outside part heat the most widely, cause the deformation that pallet wrinkle is flat or tilts, or diaphragm seal adhere to heating plate, sealing
The above vestige leaving heating plate of film.When pallet so deforms, also unplessantness displeasure can be caused to client, it addition, at refrigerator etc.
Assure place, also can be difficult to the multiple pallet of stacking and carry out keeping, therefore need also exist for re-executing the situation of sealing operation.
Further, continue along with superheat state or repeatedly, thermal stress persistent accumulation is applied to food service tray sealing device
Base body or other member of formation such as cap unit.Therefore, when outside the main body making pallet sealing device with heat labile material
During shell etc., easily can deform because of thermal stress or damage.
Accordingly, it is difficult to the thermoplastic resin of such as ABS resin outstanding and cheap for mouldability is used as food torr
The material of the main body cover etc. of dish sealing device, so, by relevant to the material such as the main body cover of pallet sealing device perhaps
Many restrictions.In view of this problem, although can also make, with metal materials such as steel, the part being heated in a large number, but in this feelings
Under condition, not only manufacturing cost rises, and makes the weight of single unit system be greatly increased, and causes sealing device to be difficult to mobile or place
Put.Further, since the restriction of this material, the design freedom of products appearance is greatly reduced.
On the other hand, for the pallet sealing device of conventional art, even if closing power supply after welding, heating plate is also to protect
The state having latent heat maintains given time, it addition, when continuous sealing, according to the length at interval between welding number of times or fusion bonding process,
Short, the temperature of heating plate is different, accordingly, it is difficult to control the temperature of heating plate rightly.It is to say, diaphragm seal is being fused to
Pallet aspect, it is difficult to guarantee the suitable cooling condition after the welding condition that is suitable for or welding.
Accordingly, as conventional pallet sealing device, it is difficult to guarantee suitable welding quality.Specifically, owing to sealing
The excessive welding of film and suitable sealing effectiveness cannot be obtained.Further, since heating plate cools down lentamente with the state possessing latent heat,
Thus the insufficient hardening of diaphragm seal of welding, under the adhesive state that welding surface has to a certain degree, heating plate is from close
Sealer separates.Therefore, the face of weld of diaphragm seal is difficult to be formed glossily.
In order to solve this problem, in pallet sealing device, it is considered to the temperature of heating plate, heating cycle, accumulative sealing
Number of times etc., it is also possible to be equipped with the temperature control device of heating plate (or for electric heating element that it is heated).But, as fast food restaurant
In the environment of pallet sealing device frequently uses like that, sealing operation can only perform at irregular intervals.Therefore, according to sealing
Number of times or time interval, the level of the latent heat kept in heating plate and the temperature of heating plate and periphery thereof are different, so, in order to
Fusion temp and the suitable control of time, need perception, analysis parameter the most.Control therefore, it is difficult to be equipped with for precision
Welding condition and welding terminate the mechanism of rear cooling condition, and being equipped with this controlling organization needs to add considerable expense.
On the other hand, the example of food service tray packing device as above, it is disclosed in " centrage Co., Ltd. "
(Enterline Co.Ltd.) name, on November 27th, 2003 by utility model application the 2003-0037004th application,
In the Korean registration utility the 20-3041719th (hereinafter referred to as " " centrage " device ") of registration on February 14th, 2004,
And with GMPS Co., Ltd. (GMPS Co.Ltd.) name, on January 4th, 2008 by patent application 2008-0001497
Number application, in Korean Patent Publication No. disclosed in 8 days July in 2009 2009-0074482 (hereinafter referred to as " GMPS device ")
In.
In described " centrage " device, it is configured with and has installed multiple electric heating element (electric heating additional above
Element) heating plate.In this heating plate, it is formed with peristome at central part, is configured with axle in these peristome central authorities
Hold.It addition, " centrage " device installs the silicone rubber with cushion additional in pallet seat part, it is configured absorption when welding because of heating
Plate and can to pallet seat part apply impact.
But, for the heating plate central portion of " centrage " device, and consider to shorten compared with heat time heating time, be for
Guarantee to configure other element requisite spaces such as bearing and be equipped with.
For " centrage " device, it is known that its object is to solve, because of heating plate, pallet seat part is applied impact
Problem, the intensity of heating plate is also taken as key factor to consider.It is to say, for " centrage " device, it is known that described in open
Oral area is not to consider that problem that the latent heat that the longer heat time heating time of heating plate, high power consumption and heating plate cause caused is joined
Standby.When at described central portion configuration bearing etc., they can counteract removing heating plate latent heat on the contrary.
It addition, for the heating plate of " centrage " device, although equipped with peristome, but so that have sufficiently
Intensity, should have sufficient thickness.Thus, it can be known that heater plate needs considerable time, and not only power consumption is high, due to
The volume of described heating plate is still big, thus contains the various problems such as the cooling delay that aforementioned latent heat causes.
On the other hand, for GMPS device, its object is to utilize instant heating type Ruthenox heater
(Ruthenox heater), reduces power consumption, and suppression user is scalded.Ruthenox heater refers to access in the short time
High electric power and be configured to instantaneously heated known heater.
In GMPS device, at the broad heating plate back side, according to the size of the sealed object pallet of multiple kinds, arrange
Multiple Ruthenox heaters, are configured when sealing operation, it is possible to by selecting switch (selection switch), make symbol
The heater closing sealed object pallet dimension is opened.
But, in order to heating is from the pallet of multiple kinds of little pallet to big pallet, broad heating plate should be used.
Tabular surface is persistently kept below the heating plate of Ruthenox heater, so that have sufficiently further, since installed additional
Intensity and rigidity, therefore, the thickness of heating plate also must be thicker.
It addition, in order to being provided with the heating plate of known Ruthenox electric heating element as above, heat at short notice
To the melt temperature of diaphragm seal, such as, it is heated to the temperature of 160 DEG C to 180 DEG C, in Ruthenox electric heating element, 1 should be accessed,
The highest moment electric power of 500W to 1,800W, therefore, should access higher transient voltage, exist and bring mortality to user
The danger got an electric shock.
Even if described heating plate heats rapidly, the area broad due to it and thicker thickness by means of high transient voltage
Degree, i.e. due to the volume that it is bigger, it is impossible to cool down rapidly, keeps latent heat during the long duration.Even it is to say,
GMPS device, after diaphragm seal welding, leaves latent heat in heating plate, when continuously performing welding with short period of time, adds
Hot plate duration is held in higher temperature.
Therefore, even GMPS device, also major part is led because heating plate leaves latent heat in containing " centrage " device
The problem caused.
That is, along with heating plate cooling postpone, there is the burn hazard of user, when continuous sealing operation, pallet because of
Overheated and deform, face of weld is formed roughly.It addition, other constituting portion branch around heating plate is because excessively deforming, because of
And exist in terms of using material and limit, appearance design degree of freedom declines, the suitable control difficulty of welding condition.And, just
For GMPS device, for the transient heating of heating plate, the dangerous probability bringing mortality to get an electric shock to user is high.
Summary of the invention
Technical task
The present invention is just allowing for the problem of foregoing correlative technology field and is researching and developing, it is therefore intended that provide one
Pallet sealing device, power consumption is low, and welding required time is short, cools down at short notice after welding, leaves latent heat hardly, it is possible to
Cheap expense manufacture.
Solve the scheme of problem
A kind of pattern according to the present invention, it is provided that one utilizes thermoplasticity diaphragm seal to possessing set at peristome periphery
The pallet of the frame of width carries out the pallet sealing device sealed.Described pallet sealing device possesses: base body, and it possesses above
Accommodating cavity with pallet, described pallet accommodates cavity so that the mode that the frame of described pallet is supported on above described accommodates
Described pallet；And heating unit, the heating of described diaphragm seal is fused to described in described pallet accommodates and accommodate in cavity by it
The frame of pallet so that the gas-tight seal by means of described diaphragm seal of described pallet, described heating unit includes thin-belt electric heating
Body, it has the interarea of given width, is formed as the corresponding closed-curve shape of frame shape with described pallet.Described electric heating
Body is configured to, and when diaphragm seal described in welding, the interarea of described electric heating element is along all frames of described pallet and across described
Diaphragm seal is put, arranged opposite with the frame of described pallet, and the heat making electric heating element produce is applied to described diaphragm seal.
Another kind of pattern according to the present invention, it is provided that a kind of pallet sealing device, described pallet sealing device utilizes the heat can
The pallet of the plastic sealed film frame to possessing given width at peristome periphery seals, and it possesses: base body, and it includes
Accommodating cavity with pallet above, described pallet accommodates cavity to be possessed entrance and is formed at above described, and so that described pallet
Frame be supported in the mode of described entrance periphery and accommodate described pallet；And heating unit, it is by the heating of described diaphragm seal
It is fused to described pallet and accommodates the frame of the described pallet accommodated in cavity so that described pallet is gas by means of described diaphragm seal
Sealing, described heating unit includes: thin-belt electric heating element, and it has the interarea of given width, is formed as and described pallet
The corresponding closed-curve shape of frame shape；Insulating frame, consists of and pastes with the back side in described electric heating element interarea opposition side
The state of tight Insulating frame is supported；Described electric heating element is configured to, when diaphragm seal welding described in welding, described electric heating element
Interarea along all frames of described pallet and is put across described diaphragm seal, arranged opposite with the frame of described pallet, makes electric heating
The heat that body produces is applied to described diaphragm seal.
Another pattern according to the present invention, it is provided that a kind of for diaphragm seal is fused to possess set at peristome periphery
The foregoing pallet sealing device heating unit of the pallet of width frame.Described heating unit is formed as and described pallet
The frame portion corresponding closed-curve shape of shape, possess the horizontal direction interarea (principal surface) of given width
The most described interarea width thin-belt electric heating element (electric heating element).It addition, described electricity
Hot body is configured to, and when diaphragm seal described in welding, the interarea of described electric heating element is along all frames of described pallet and across institute
Stating diaphragm seal to put, arranged opposite with the frame of described pallet, the heat making electric heating element produce is applied to described diaphragm seal.
Another pattern according to the present invention, it is provided that a kind of heating unit, for for the tool being sealed in peristome periphery
The pallet of the frame of standby given width and diaphragm seal is fused to the pallet sealing device of described frame, including thin-belt electric heating
Body, it has the interarea of given width, is formed as the corresponding closed-curve shape of frame shape with described pallet；And insulation
Framework, consists of and is adjacent to the state of Insulating frame with the back side in described electric heating element interarea opposition side and is supported.Described electricity
Hot body is configured to, and when diaphragm seal described in welding, the interarea of described electric heating element is along all frames of described pallet and across institute
Stating diaphragm seal to put, arranged opposite with the frame of described pallet, the heat making electric heating element produce is applied to described diaphragm seal.
The present invention is characterized in, i) electric heating element is interarea (principal surface) narrow width and thickness ratio
The banding that interarea is thin, is formed as the closed-curve shape of frame respective shapes with described pallet, ii) interarea of described electric heating element
Above with described Pallet side frame is opposed to configuration, iii) described electric heating element is configured to can be directly to diaphragm seal applying welding
Heat.
Invention effect
According to this feature, thin-belt electric heating element due to its volume the least (such as, more than the 10 ten thousand of original heating plate/
One), it is possible in very short time, be heated to welding temperature required (such as 160 DEG C to 180 DEG C), and, can when cutting off the electricity supply
Cooling rapidly.It addition, with the electric heating formed with the corresponding closed-curve shape of frame shape of the peristome periphery of described pallet
Body, heats other heating plate unlike conventional art, but can directly heat diaphragm seal.Therefore, electric heating element is only heated
Self, and this electric heating element can form to have the least volume, thus power consumption is the lowest.When the most not using Zeng Zuowei long
Between leave latent heat the bigger heating plate of the volume of main cause, thus after welding terminates, electric heating element cools down at short notice, several
Do not leave latent heat.
It addition, welding heat intensively can apply by the interarea of described electric heating element along the frame of tray openings portion periphery
(principal surface) and limit the narrower region of (well defined) well.It addition, for diaphragm seal,
Need not the part of heating outside welding position, the most do not apply heat.Therefore, just can hold the most efficiently with the lowest electric power
Row welding.It addition, be obtained in that the weld portion of the better quality of coherency.
As it was previously stated, in the present invention, the heating plate of big volume is not used, it is thus possible to eliminate and heating plate leaves
The relevant various problems that may cause of latent heat.Specifically, it is possible to avoid user to be scalded by latent heat.It addition, can suppress close
Envelope object pallet deforms due to latent heat.Furthermore, it is possible to avoid in the prior art, the latent heat possessed because of heating plate,
Welding condition changes according to welding number of times and time interval.Therefore, associated, other temperature inspection can not be equipped with separately
Survey or controlling organization.
It addition, after switching on power, electric heating element can heat rapidly, because being held in pre-Warm status without electric heating element,
Thus when pallet sealing device does not uses, it is not necessary to sealing device is held in ON state.It is thus able to reduce further consumption
Electricity.
It addition, latent heat disappears at short notice, it is not required that make electric heating element preheat, thus each welding condition almost with
Initial stage welding condition is identical.Therefore, even if not configuring other complicated temperature detection and controlling organization, it is also possible to obtain and have
The weld bond of coherency.
It addition, the most of welding position concentrating access the narrowest of heat produced from electric heating element, electric heating element is the most not
Leave latent heat, can cool down rapidly, thus thermal stress is not accumulated and put on base body or the cap unit etc. of pallet sealing device and add
Hot device periphery element.Therefore, it can with good moldability, cheap synthetic resin materials such as ABS thermoplastic resins
Make the structure member such as cap unit or base body (structural members).By using these materials, can be by note
Molded grade manufactures described structural elements, it is thus possible to improve appearance design degree of freedom, and, it is possible to outside manufacturing with relatively low expense
See beautiful pallet sealing device.
Further, since do not use other heating plate, it is thus possible to reduce manufacturing expense further.
Accompanying drawing explanation
Fig. 1 is the axonometric chart of conventional pallet sealing device.
Fig. 2 is the disrumpent feelings axonometric chart in local of the pallet sealing device of one embodiment of the invention.
Fig. 3 is the exploded perspective view of the state showing that the cap unit of pallet sealing device shown in Fig. 2 partly decomposes.
Fig. 4 is the axonometric chart of the heating unit of the described pallet sealing device of the present invention.
Fig. 5 is the exploded perspective view of heating unit shown in Fig. 4.
Fig. 6 a and Fig. 6 b is respectively along the amplification profile of arrow A-A and B-B of Fig. 4.
Fig. 7 a and 7b is the figure of the electric heating element exemplarily illustrating the heating unit that can be applicable to the present invention, and 7c is along figure
The drawing in side sectional elevation of the electric heating element in arrow C-C and the arrow C'-C' direction of 7a and Fig. 7 b.
Detailed description of the invention
With reference to the accompanying drawings, the preferred embodiments of the present invention are described in detail.In the following description, such as concrete structure has been enumerated
Becoming the example of the specific item of key element etc., this offer is adapted to assist in being more fully understood from of the present invention, does not really wants to limit the present invention's
Thought or scope.It addition, aspect of the present invention is being described, when judging that thinking that technology related known to the present invention illustrates understands
When unnecessarily obscuring idea of the invention, description is omitted.
On the other hand, in present specification and claims, it is possible to use such as " below ", " above ", " perpendicular
Directly ", " level " etc. represents the term in direction.It should be noted that these terms use, only for reasons of in explanation facility
To define the most especially, then on the basis of closing the state of cap unit by the sealing operation for pallet sealing device, it is meant that phase
Close element or the position of part configuration or direction.It addition, certain article showed at this or the title of key element, must not explain
For being defined in special-purpose or shape.Such as it is noted that term as used herein " pallet ", including such as disposable plate,
Sanitary cup, disposable bowl etc. can carry out the container that seals by frit seal film.Even it addition, including food for splendid attire
The container of article in addition, if welding can be sealed with diaphragm seal as mentioned above, then it is also contained in described pallet.
With Fig. 2 and Fig. 3 as reference, the pallet sealing device of one embodiment of the invention is described.
Fig. 2 is the disrumpent feelings axonometric chart in local of the pallet sealing device of one embodiment of the invention, and Fig. 3 is shown in display Fig. 2
The exploded perspective view of the state that the cap unit of pallet sealing device partly decomposes.
If with reference to Fig. 2, pallet sealing device (tray sealing apparatus) 1 tool of one embodiment of the invention
Standby: base body (base body) 10；Cap unit (cover unit) 20, it is centered by hinge axis X-X, it is possible to rotary motion
Be incorporated into base body 10 so that above to base body 10 carries out opening and closing；Heating unit (heater unit) 30, it installs additional
Below cap unit 20.
On described base body 10, equipped with the diaphragm seal feeding unit 40 having diaphragm seal with scroll state storage, in order to supply
It is applied to diaphragm seal (seal film) f that sealed object pallet T is sealed.Illustrate diaphragm seal feeding unit in the drawings
(film supply unit) 40 is integrally provided to the situation of base body 10, but this film feeding unit 40 can also with base body
The 30 other unit separated provide.
It addition, on base body 10, accommodate cavity (tray equipped with the pallet accommodated needed for described pallet T
Accommodation cavity) CV, diaphragm seal outlet (seal film outlet) 12.Preferably upper at described base body 10
Face, accommodates cavity C V periphery at described pallet and is configured with epirelief wheel rim (the upward protrusion of intended height and width
rim)11.Described pallet T at peristome periphery equipped with the frame r of given width.Therefore, if described pallet T is inserted institute
State pallet and accommodate cavity C V, then, described frame r is pressed on and accommodates, at described pallet, the epirelief wheel rim 11 that cavity C V periphery is formed
On.
Described heating unit 30 is configured when described cap unit 20 is closed, and can cover pallet and accommodate cavity C V periphery
Described epirelief wheel rim 11, is installed in below described cap unit 20.
Accommodate between cavity C V in described diaphragm seal outlet 12 and described pallet, equipped with for closing at described cap unit 20
The cutter 50 of described diaphragm seal is blocked when closing.
Below described heating unit 30, equipped with the frame r corresponding closed-curve shape shape with described pallet T
The electric heating element 31 become.Below other element of described electric heating element 31 and heating unit 30 is described in detail.
As it is shown on figure 3, described heating unit 30 can be incorporated into cap unit 20.
According to a preferred embodiment of the invention, cap unit 20 can possess interior plate 21 and outer panel 22.At interior plate 21
Central authorities, equipped with periphery be formed protrude wheel rim 23a peristome 23.In described outer panel 22, as depicted
Under state, it is formed with wall portion (wall) along limit, left and right and upper edge.The peristome of the most described interior plate 21 is formed to have energy
Small gap is enough set and accommodates the size and shape of described heating unit 31.Additionally, it is preferred that the wall portion structure of described outer panel 22
Become to enable its medial surface to be engaged with limit, left and right and the upper edge of described interior plate 21.Below described outer panel 22, can
With equipped with linking protruding (fastening rib) (not shown).Described interior plate 21 and outer panel 23 can use to be moulded
Material material, such as, use the injection mo(u)lding manufactures such as ABS resin.
Described heating unit 30 can utilize the connecting pieces such as screw, is connected to below described outer panel 22, more specifically and
Speech, is linked to described link projection.Now, preferably below outer panel 22 and above described heating unit 30 between, insert
Enter the elastomeric element having such as spring s, be configured and can apply to be resiliently biased against power (elastically to described heating unit 30
biased force)。
As it has been described above, heating unit 30 is assembled in outer panel 22, described interior plate 21 is incorporated into described outer panel 22, makes
Obtain described heating unit 30 and be inserted into the peristome 23 of described interior plate 21.Thus, the interarea of described heating unit 30
(principal surface), i.e. face arranged opposite when cap unit 30 is closed and above described base body, by described
The peristome 23 of interior plate 21 exposes.Now, be configured can be with described peristome 23 for the interarea of the most described heating unit 30
Composition same plane or protrude slightly above from it below the lower cam edge 23a of periphery.
Described interior plate 21 when combining, be fixed on by means of the known connecting piece such as such as screw described outside
Side plate 22.
Therefore, described interior plate 21 around heating unit 30, the outer panel 22 of the most hidden described cap unit 20
Below, and, play the effect that suppression heating unit 30 loosens from the outer panel 22 of cap unit 20 or departs from.
It addition, when observing under state shown in Fig. 3, the lower edge of interior plate 21 is incorporated into base body with hinging manner
10.Therefore, described cap unit 20 can be rotated relative to described base body 10, and described in opening and closing, base body 10 is upper
Face.Close above base body 10 if described heating unit 30 is arranged to cap unit 20, then make described electric heating element 31 to weigh
It is laminated on epirelief wheel rim 11.
Below with Fig. 4 and Fig. 5 as reference, the heating unit 30 of the embodiment of the present invention is described in detail.Fig. 4 and Fig. 5
It is axonometric chart and the exploded perspective view of the heating unit 30 of the described sealing device 1 of the present invention respectively.
As it is shown in figure 1, when the pallet T possessing the rounded almost rectangular frame r in angle is sealed, preferably add
Hot cell 30 is configured shape and the size with the frame r that can cover this pallet.Therefore, heating unit 30 as shown in Figure 4,
Can almost rectangular shape relatively low with height, that angle is rounded be constituted.But, described heating unit 30 is it is of course possible to meet
Sealed object pallet T, other shape of frame (rim) shape particularly meeting pallet is constituted.Such as, for possessing circle
The pallet of shape frame carries out in the pallet sealing device sealed, and described heating unit 30 can be formed with circle.
As shown in Figures 4 and 5, according to a preferred embodiment of the invention, described heating unit 30 possesses electric heating element 31, described
Electric heating element 31, electrically to heat, applies to carry out sealed plastic welding f (reference to the frame r of described sealed object pallet T
Heat needed for Fig. 2).Additionally, it is preferred that described heating unit 30 possesses the insulation being adjacent to support electric heating element at the back side of electric heating element 31
Framework 33.Described electric heating element 31 as shown in Figure 7 c, has the interarea (principal surface) of given width W and is significantly thinner than
The rectangular cross-sectional of the thickness t of this interarea width.
Described electric heating element 31 is formed with the frame r corresponding closed curve form with described sealed object pallet T, is sealing
During plastics f welding, the interarea of described electric heating element 31 is opposed to configuration with the frame r of described pallet T.It is to say, mould in sealing
During material f welding, along the periphery of closed curve form, the interarea of described electric heating element 31 configures in the horizontal direction, described electric heating element
The thickness face of 31 vertically configures.
Now, in order to suppress heat to put on and the part outside the described pallet T corresponding part of frame r, the most described electricity
The width W of the interarea of hot body 31 (with reference to Fig. 7 c) is narrower than the frame r width of described pallet T, determine described electric heating element shape and
Size, in order to when sealing operation, makes electric heating element 31 overall and the frame r upper zone of described pallet T is overlapping or is configured at this
In region.
Particularly, described electric heating element 31, in order to ensure rapid welding while reducing power consumption, preferably can heat rapidly
Fusion temp (such as, about 160 DEG C to 180 DEG C) to diaphragm seal f.It addition, after welding terminates, in order to avoid user quilt
Scalding, preferably at most limit cools down rapidly, does not leave latent heat.It is therefore preferable that the width of described electric heating element 31 interarea is narrower than described
The frame r of pallet T, thickness is significantly thinner than the width of interarea, such as, for about the 1/5 to 1/10 of interarea width.From this viewpoint
Speech, particularly preferred described electric heating element is formed by thin narrow banding pattern nichrome wire.Below this is described in more detail.
The most described Insulating frame 33 is with heat-resisting material manufacture, enabling bears the heat that electric heating element 31 produces, and makes
The insulating backside of electric heating element 31.It addition, in order to make electric heating element 31 can cool down immediately after described diaphragm seal f welding, preferably institute
State Insulating frame 33 with the outstanding material manufacture of heat conductivity.If it is considered that this characteristic, the most described Insulating frame 33 such as with
Bakelite or Muscovitum manufacture.Even the material outside these materials, if thermostability and heat conductivity are outstanding, naturally it is also possible to
Material as described Insulating frame 33.
It addition, described Insulating frame 33 is in order to save material, promote heat radiation when described electric heating element 31 cools down, preferably such as figure
Shown in 5, with the closed-curve shape corresponding with the closed-curve shape of described electric heating element 31, it is configured, in central authorities, there is peristome
33c.But, described Insulating frame 33, in order to provide the abundant supporting surface to electric heating element 31, preferably has than described electric heating
The broader interarea of interarea width of body 31.It addition, Insulating frame 33 is as shown in Figure 6 a, if cut with the ditch flute profile that wall thickness is relatively thin
Face shape molding, then when electric heating element 31 cools down, it is possible to promote heat radiation further.
On the other hand, as shown in Fig. 5, Fig. 6 a and Fig. 6 b, preferably at the interarea (principal of described Insulating frame 33
Surface), in, electric heating element resettlement groove (the electric heating element seat that peripherally direction extends is formed
Recess) 33a, is inserted in described electric heating element resettlement groove 33a described electric heating element 31, enabling suppress described electric heating element 31 edge
The movement of width.At the commitment positions of electric heating element resettlement groove 33a, could be formed with more than one terminal described later and insert
Hole 33b.Described Insulating frame 33 can be manufactured by injection mo(u)lding.
As described Insulating frame 33 material, as it was previously stated, when using thermostability and the outstanding material of heat conductivity, such as make
During with bakelite or Muscovitum, intensity and the durability of this material are also slightly decreased.It is therefore preferable that in Insulating frame 33, as
Shown in Fig. 5, in conjunction with reinforced frame 35 so that provide described Insulating frame 33 is distorted or deforms to add strength.
Additionally, it is preferred that reinforced frame 35 by have can provide add as mentioned above strength intensity and rigidity, and heat conduction or
The material that heat dissipation characteristics is better is constituted.
For from view of the above, as reinforced frame 35 material, such as nylon66 fiber or glass fibre strengthen nylon66 fiber
(glass fiber reinforced nylon 66) is suitable for.Additionally, it is preferred that reinforced frame 35 and described electric heating element 31 and described
Insulating frame 33, similarly with closed-curve shape, is formed to possess peristome in central authorities.Described reinforced frame 35 forms to obtain tool
There is the interarea of the interarea width being wider than described Insulating frame 33, enabling provide the abundant support to described Insulating frame 33
Face.Described reinforced frame 35 can be manufactured by injection mo(u)lding.
It addition, as it is shown in figure 5, preferably on the interarea of described reinforced frame 35, be formed can make along its periphery direction
The Insulating frame resettlement groove 35a that described Insulating frame 33 is laid, at the central portion of described reinforced frame 35, in order to prevent adding
The distortion of strong frame 35, such as, be formed with cross ribs 35c.It addition, in described Insulating frame resettlement groove 35a, permissible
Formed and corresponding for the terminal insertion hole 33b terminal of formation in the described electric heating element resettlement groove 33a on described Insulating frame 33
Insert hole 35b (with reference to Fig. 6 a and Fig. 6 b).
On the other hand, Fig. 7 a and Fig. 7 b demonstrates the electric heating element example of the heating unit that can be applicable to the present invention.It addition, 7c
It it is the drawing in side sectional elevation of the electric heating element in the arrow C'-C' direction of arrow C-C and Fig. 6 b along Fig. 6 a.
As it was previously stated, electric heating element 31 is with the Guan Bi corresponding with the shape of sealed object pallet T frame r (with reference to Fig. 2 and Fig. 3)
Curve shape is formed.This closed-curve shape, can be according to the frame r shape of sealed object pallet T as shown in Fig. 7 a and Fig. 7 b
And diversely formed.Certainly, according to the frame shape of sealed object pallet, it is also possible to be different from content shown in these accompanying drawings
Closed-curve shape is formed.
According to embodiments of the invention, described electric heating element 31 can bend linear strip (linear strip) form
Heating wire (electric heating wire) and formed so that pallet is being carried out by its interarea (principal surface)
During diaphragm seal welding, become the interarea of release electric heating element 31 welding heat.
Such as, as shown in Figure 6 a, electric heating element 31 is divided into two half portions 311、312So that the interarea level of heating wire is joined
Put, and thickness face configures vertically, bend to the corresponding shape in described half portion that (such as, U-shaped, each heating wire
Two ends vertically bend relative to interarea, form this half portion 311、312.Then, be bonded with each other the both side ends of heating wire of bending
31a such that it is able to be readily formed the electric heating element 31 of described closed curve form.Now, bend and the end (end that engages
Portions) effect of electrical terminal as each half portion can be performed.Therefore, in order to prevent the end at this joint
The end that superheating phenomenon, the preferably joint at each junction surface occur connects the power supply of identical polar.
Described electric heating element 31 as shown in Figure 7b, can be formed a heating wire required by bending as above
After closed-curve shape, bending two ends are also bonded with each other.Preferably these ends 31a is to have the binding agent of thermostability and electric conductivity
Engage.As shown in Figure 7 c, having rectangular cross section with the electric heating element that closed-curve shape is formed, the width W of interarea is narrow,
Particularly thickness t is significantly thinner than the width W of interarea.As a result, be interpreted as electric heating element 31 interarea along described closed-curve shape periphery,
Act on as the heating face needed for diaphragm seal welding.
It addition, between the end that bending engages, tiny space (void) also can occur.In such a situation it is preferred to
The material as silicon PUR (silicon hot melt) with thermostability is utilized to fill this space, so that described electricity
The interarea of hot body 31 is monolithically fabricated smooth same plane.
As described banding pattern heating wire, preferably can use the width can easily bought the most in the market about 1.6mm,
Thickness about 0.18mm, or the nichrome heating wire of the linear banding of width about 2.0mm, thickness about 0.20mm.As long as institute
The technical staff in genus field will know that, thin nichrome heating wire as above is even with low-voltage dc power supply, also
Determined temperature can be heated at short notice, further, since thickness is the least with width, thus there is energy after cutting off the electricity supply
The feature of enough coolings rapidly.
For nichrome heating wire, resistance increases along with thickness and the increase of length, thus power consumption increases.This Shen
Inventor please pass through experiment, utilize the two nichrome heating wire, with form shown in Fig. 7 a, be equipped with circumferential distance about
The electric heating element of 70cm, is connected to DC source (power consumption 240W, use voltage 12V), measure be heated to about 180 DEG C required time
Between.Why the length of test portion is set to 70cm, is because the pallet that carries out sealing with the pallet sealing device of the present invention
About anticipated substantially this length of frame circumferential distance.
Experimental result confirms, the described electric heating element initial stage is heated to 180 DEG C of temperature needs about 7 seconds to about 9 seconds.Different electric heating
The different time difference of body is it is considered to be result from thickness difference and measurement error.Described voltage is to utilize to fill at semiconductor manufacturing
For SMPS (the Switching Mode Power being known as AC-DC conversion power source device used a large amount of in waiting
Supply), the conventional alternating current power supply of 220V is converted into 12V unidirectional current to use.
It addition, utilize described electric heating element, make foregoing heating unit and pallet sealing device, when utilizing as above institute
During the DC source of the 12V (power consumption 240W) stated, it is right with original diaphragm seal and the pallet used in original pallet sealing device
As, test sealing property, below this experimental result has been described in more detail.
It is described above bending linear banding heating wire, closes song with corresponding with the frame portion of sealed object pallet
The situation that wire shaped is formed, but the scope of the present invention is not limited to this manufacture method.That is, as strip-like shape, such as
The electric heating element of the closed-curve shape corresponding with the frame shape of pallet, is directly used as making the pyrotoxin of diaphragm seal welding, with it
Manufacture method is unrelated, falls within technological thought and the scope of the present invention.
On the other hand, below with Fig. 4 and Fig. 5 as reference, the described heating unit 30 of one embodiment of the invention is described
Assembling process.
First, Insulating frame 33 is placed in the interarea of reinforced frame 35, more specifically, is placed in Insulating frame and disposes
After groove 35a, utilize the connecting piece of such as screw, make described Insulating frame 33 be fixed on reinforced frame 35.And, described electric heating
Body 31 is placed in the interarea of described Insulating frame 33, more specifically, lays along electric heating element resettlement groove 33a, described electric heating
The end 31a that the bending of body 31 engages is inserted in and is formed respectively in described resettlement groove 33a and described Insulating frame resettlement groove 35a
Terminal insertion hole 33b, 35b.These terminals connect power supply.It addition, described electric heating element 31 can utilize heat resistant adhesive,
It is engaged in the bottom surface of described resettlement groove 33a.
When assembled as described above, shrouding (closure plate) 37 is inserted described central portion 33c,
Make to close the central portion 33c of described Insulating frame, it is possible to prevent the ribs etc. of the reinforced frame 35 combined overleaf
It is exposed to outside.
When assembled as described above, preferably at described electric heating element 31, described shrouding 37 and described Insulating frame 33
All exposed surface on, adhere to thin bonding sheet 39 so that described electric heating element 31, described shrouding 37 and described Insulating frame 33 do not reveal
Go out to outside.Described bonding sheet 39 plays the effect of the ornament materials as described heating unit 30, meanwhile, it is capable to make described electricity
Hot body 31 is more stably fixed relative to Insulating frame 33.Described bonding sheet 39 keeps the state being adjacent to all the time with electric heating element 31,
It addition, contact with diaphragm seal when sealing operation, thus preferably with the material that thermostability, mar proof and thermal conductivity are outstanding,
The bonding sheet such as manufactured with silicon or politef.
Heating unit 30 assembled as described above can utilize the connecting pieces such as screw, is installed in cap unit 20, more specifically and
Speech, is installed in below outer panel 22.As it was previously stated, preferably between the outer panel 22 of heating unit 30 and cap unit 20, insert
There is the elastomeric element of such as helical spring s, be configured and the offer of described heating unit 30 can be resiliently biased against power so that sealing
During object pallet welding, oppress heating unit 30 relative to described pallet, particularly oppress described electric heating element 31.
The described heating unit 30 assembled as previously mentioned, can use and can carry out dismounting relative to pallet sealing device
Mould type structure.Therefore, user, when the heating unit of pallet sealing device damages or be damaged, can be replaced by new easily
Product.
Effect to the pallet sealing device of the present invention configured as described above below is examined or check.
First, the pallet formed on base body 10 accommodates insertion sealed object pallet T in cavity 50, from diaphragm seal supply
Portion's pull-out diaphragm seal f, covers described sealed object pallet T.
Then, make cap unit 20 rotate, close above base body 10.Then, described diaphragm seal 70 is provided to pedestal
Cutting knife 50 below the above and described cap unit 20 of body 10 blocks, and is positioned at the diaphragm seal part on the frame r of described pallet T
It is sandwiched between described frame r and the described heating unit 30 being applied with the power of being resiliently biased against, more specifically, is sandwiched in and electric heating element 31
Between.
Then, after described heating unit 30 accesses power supply, more specifically, after electric heating element 31 accesses power supply, electric heating
Body 31, while described diaphragm seal f being heated to the temperature of more than its melt temperature, is pressed on described pallet described diaphragm seal f
On the frame of T, thus along the frame portion of described pallet, described diaphragm seal is by airtight welding.
On the other hand, the present inventor is carried out to confirm the problems such as the latent heat of the pallet sealing device constituted as previously mentioned
Experiment.The condition that experiment uses is as follows.
I) power consumption: 240W (12V direct current)
Ii) electric heating element material: length about 74cm, width about 0.16cm, the nichrome wire of thickness about 0.018cm
Iii) diaphragm seal: the film (melt temperature about 160 DEG C) that PET film is compound with PP film
Iii) pallet: the disposable pallet of PP material
Iv) laboratory temperature: about 22 DEG C
V) thermometer: infra-red thermometer (Reytek Co.Ltd. manufactures Raynger ST (model name))
Vi) heating unit material: make Insulating frame with bakelite, makes reinforced frame with nylon66 fiber, with silicone coupling
Sheet makes bonding sheet.
Vii) pallet sealing device: cap unit uses ABS material injection mo(u)lding to make with the structure division of base body etc..
Experiment is to be set to by Sealing period 10 seconds, and pallet sealing device was then automatically switched off through 10 seconds after opening, each close
Time interval between envelope step arranges and is about 20 seconds, during this time interval, pallet sealing device is held in cut out
(OFF) state.It addition, open cap unit afterwards just past Sealing period (10 seconds), measure the temperature of electric heating element, through 20 seconds
After, measure the temperature before pallet sealing device is opened.It addition, visually inspected the welding shape at the welding position of diaphragm seal
State.
With method as above, 1 experiment seals 50 pallets, this experiment is implemented 3 times repeatedly.
As a result, just past the temperature of the electric heating element after Sealing period, after terminating with initial sealing about 38 DEG C as beginning,
When repeatedly sealing 7 to 8 times, gradually rise up to about 48 DEG C, but hereafter unrelated with the increase of number of times, it is maintained at about 42 DEG C to 48 DEG C models
Enclose.It addition, seal terminate after temperature through about 20 seconds time, about 27 DEG C after also terminating with initial sealing as beginning, the closeest
When sealing 6 times to 9 times, gradually rise to about 36 DEG C, but hereafter unrelated with sealing number of times, it is held in the temperature of about 36 DEG C the most setly
Degree.
Observe variations in temperature as above from electric heating element self, but confirm cap unit and base body part, even
It is the position close to heating unit, until at the end of Shi Yan, unrelated with the time of measurement, it is held in the temperature of less than 36 DEG C.
Particularly in described experimentation, do not find the incomplete welding of diaphragm seal or excessive welding phenomenon, or torr completely
The metaboly of dish.Particularly confirm the welding position of diaphragm seal with almost similar with the electric heating element width smooth landform of width
Become.
By described experiment it has been confirmed that described electric heating element cools down rapidly during open cap unit, electric heating element produces
Hot major part is used for diaphragm seal heat welded, and being delivered to electric heating element, to adjoin the ratio at position the lowest.It addition, confirm to seal
The protrusion wheel rim that pallet opposed with described electric heating element during film phonograph seal accommodates cavity periphery is the most overheated, and this is considered as
Suppress from electric heating element to the insulation effect of the heat transfer protruding wheel rim because the frame of diaphragm seal and pallet provides.
On the other hand, the present inventor, for possessing the conventional pallet sealing device of heating plate, has been carried out about latent heat etc.
Experiment.The pallet sealing device used is as follows.
I) goods: Impack Co.Ltd. manufactures, model name M1
Ii) power consumption: 550W (220V exchange)
Iii) laboratory temperature: about 22 DEG C
Described conventional pallet sealing device is in power-on, and after about 6 minutes, heating plate rises to about 187 DEG C, i.e.
Making power supply be held in opening, described temperature the most no longer rises.This is because temperature is equipped with by pallet sealing device
The control of temperature-control circuit.
After closing power supply, the temperature of heating plate was about 80 DEG C after 10 minutes, was about 60 DEG C extremely after 15 minutes
62 DEG C, and, after about 20 minutes, it is maintained at about 50 DEG C.It is to say, for Impack device, straight after closing power supply
During the some time that heating plate cools down, possess latent heat, thus the probability that user is burned is high.For the present invention, nothing
Need this heating plate, use with thin narrow band kenel, the electric heating element that formed with closed-curve shape, thus eliminate this asking
Topic.
Carry out sealing as a result, when sealing during 10 seconds when heater plate to 187 DEG C, pallet
Deformation, when carrying out during 5 seconds, leaves the vestige of heating plate on diaphragm seal, when carrying out during 3 seconds, this does not occur
The problem of kind.That is, for Impack device, exist if not sealing operation practician, be then difficult to suitable sealing state
The problem carrying out sealing.For the present invention, electric heating element heats rapidly, cools down rapidly, when each pallet seals, it is possible to almost
Welding is completed under conditions of set, thus, such as, if only arranging the electric power starting persistent period, though the most not practician, also
Good welding can be guaranteed coherency.
Such as, in the power supply circuit of pallet sealing device, it is equipped with common dump intervalometer, through both
When fixing time, short circuit so that power supply is cut off, if or power circuit is configured user closes cap unit, then
Power supply circuit is from being dynamically connected, if open cap unit, then circuit disconnects automatically, then will increase user further
Convenience.The composition of this power circuit is that person of ordinary skill in the field utilizes known technology just can easily research and develop
, thus omit and further illustrate.
For the device of Impack, initial stage heating needs the long period of 6 minutes, thus is made to make power supply persistently protect
Hold opening.Owing to providing the temperature control device for keeping this state, thus production cost can rise.It addition, can
Knowing in terms of power consumption, also high more than 2 times than assembly of the invention, energy consumption is at a relatively high.Further, since the higher exchange of 220V
Voltage is used as power supply, thus there is the danger that user gets an electric shock.
It addition, constantly power supply is held in opening, heating plate is held in the temperature being suitable for sealing, thus heats
Part outside plate is persistently by heat load, overheated worried high.Therefore, the probability that not only user is burned increases further
Add, and unnecessary power consumption is the highest.Further, since be required to bear this overheated, thus heat-resisting material should be used.This
Make fee of material increase, and limit the appearance design degree of freedom of pallet sealing device.
For the present invention, electric heating element heats at short notice, cools down, thus during not carrying out sealing operation, can make
Power supply is held in closed mode.Therefore, there's almost no the probability that user is scalded, power consumption is the lowest.It addition,
The heat that electric heating element produces is mostly used in the welding of diaphragm seal, and the heat load that other parts are subject to is small, thus can be with such as
The good forming ability of ABS, cheap synthetic resin make the most of element outside electric hot plate.Therefore, it is possible to fall
Low fee of material and manufacturing cost, improve and be intended to make the design freedom of beautiful appearance.
For Impack device, owing to continuing that heating plate is held in heated condition, thus can be with installing space
Restriction.This is because, as it was previously stated, the also continuous heating of the part outside heating plate overheated, thus the use of even this device
The temperature in space also can rise.Therefore, in fast food restaurant etc., when using Impack device, need to be equipped with other separation
Installing space, the mobile route of salesman to pallet sealing device can lengthen.Then, also can become in space charge and labour cost
The reason risen.As being confirmed, according to the present invention, for heating up the part outside unit, substantially by experiment above
Occur without the superheating phenomenon caused because of continuous sealing operation, thus proximal site the facility of salesman's main activity can be installed on
Ground uses.
That is, the present invention is without heating plate, forms the electricity of pallet sealing device with the shape that thin-belt is corresponding with Pallet side frame
Hot body such that it is able to obtain the effect that can make a summary as follows.
I) power consumption is the least,
Ii) user burn hazard and Danger Electric shock risk can be suppressed,
Iii) though not practician, it is also possible to perform quality good and there is the welding of coherency,
Iv) the pallet deformation that latent heat causes can be suppressed,
V) the cheap synthetic resin such as ABS can be utilized to manufacture most of element of pallet sealing device, it is possible to fall
Low fee of material,
Vi) products appearance design freedom improves,
Vii) goods dispose easy, facility.
Above, in detailed description of the invention, specific embodiment is illustrated, but without departing from model of the present invention
In the limit enclosed, can carry out various deformation, this is that those skilled in the art is self-evident.
Claims (11)
1. a pallet sealing device, described pallet sealing device utilizes thermoplasticity diaphragm seal both to possess at peristome periphery
The pallet of the frame of fixed width degree seals, it is characterised in that
Possessing: base body, it possesses above and pallet accommodates cavity, and described pallet receiving cavity is so that the frame of described pallet
The mode being supported on above described accommodates described pallet；
Cap unit, it can be incorporated into described base body to rotary motion so that opens and closes above described base body, and tool
Standby by when closed with described base body above opposed in the way of below horizontal arrangement, and
Heating unit, it is incorporated into below described cap unit, and the heating of described diaphragm seal is fused to described pallet and is accommodated
The frame of the described pallet accommodated in cavity so that described pallet gas-tight seal by means of described diaphragm seal,
Described heating unit includes thin-belt electric heating element, and it has the interarea of given width, is formed as and the frame of described pallet
The corresponding closed-curve shape of shape,
Described electric heating element is configured to, and the width of interarea is equivalent to the linear thin-belt electricity of the width of the interarea of described electric heating element
Hot line bends and is formed so that the interarea of described heating wire becomes the interarea of described electric heating element, when diaphragm seal described in welding, and institute
State the interarea of electric heating element along all frames of described pallet and across described diaphragm seal, opposed with the frame of described pallet join
Putting, the heat making electric heating element produce is applied to described diaphragm seal.
Pallet sealing device the most according to claim 1, it is characterised in that
Described electric heating element is the shape of the closed-curve shape half 2 heating wire parts being bent to be equivalent to described electric heating element
After, the two ends of these heating wires that are bonded with each other and formed.
Pallet sealing device the most according to claim 2, it is characterised in that
The both side ends of each heating wire of bending the most rearward bends with the interarea of described heating wire part, two electric heating
The both side ends of the bending of line engages with the state contacted.
Pallet sealing device the most according to claim 3, it is characterised in that
Between the end of the heating wire of described joint, it is formed with space, this space is filled with thermostability packing material.
Pallet sealing device the most according to claim 1, it is characterised in that
Described electric heating element have interarea width be 1.6mm to 2.0mm, thickness be the rectangular cross-sectional shape of 0.18mm to 0.20mm
Shape.
Pallet sealing device the most according to claim 1, it is characterised in that
Between described heating unit and described cap unit, it is inserted with elastomeric element, makes heating unit be resiliently biased towards base body.
7. a heating unit, for being fused to diaphragm seal to seal the pallet of the frame with peristome and periphery thereof
The pallet sealing device of described frame, it is characterised in that
Including thin-belt electric heating element, it has the interarea of given width, is formed as corresponding with described Pallet side frame shape and closes
Curve shape,
Described electric heating element is configured to, the width of interarea is equivalent to described electric heating element the linear thin-belt of width of interarea
Heating wire bends and is formed so that the interarea of described heating wire becomes the interarea of described electric heating element, when diaphragm seal described in welding,
The interarea of described electric heating element, along all frames of described pallet and across described diaphragm seal, opposed with the frame of described pallet is joined
Putting, the heat making electric heating element produce is applied to described diaphragm seal.
Heating unit the most according to claim 7, it is characterised in that
After described electric heating element is the shape of the closed-curve shape half 2 heating wires being bent to be equivalent to described electric heating element,
It is bonded with each other the two ends of these heating wires and is formed.
Heating unit the most according to claim 8, it is characterised in that
The both side ends of each heating wire of bending the most rearward bends with the interarea of described heating wire, two heating wires
The both side ends of bending engages with the state contacted.
Heating unit the most according to claim 9, it is characterised in that
Between the end of the heating wire part of described joint, it is formed with space, this space is filled with thermostability and fills material
Material.
11. heating units according to claim 10, it is characterised in that
Described electric heating element have interarea width be 1.6mm to 2.0mm, thickness be the rectangular cross-sectional shape of 0.18mm to 0.20mm
Shape.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR20120124290 | 2012-11-05 | ||
| KR10-2012-0124290 | 2012-11-05 | ||
| PCT/KR2013/003860 WO2014069731A1 (en) | 2012-11-05 | 2013-05-03 | Tray sealing apparatus and heater unit for same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104768852A CN104768852A (en) | 2015-07-08 |
| CN104768852B true CN104768852B (en) | 2016-11-30 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202072002U (en) * | 2011-03-14 | 2011-12-14 | 苏州森瑞保鲜设备有限公司 | Continuous box type modified-atmosphere packaging device |
| CN202201192U (en) * | 2011-07-01 | 2012-04-25 | 苏州森瑞保鲜科技有限公司 | Automated air-conditioning packaging machine production line |
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202072002U (en) * | 2011-03-14 | 2011-12-14 | 苏州森瑞保鲜设备有限公司 | Continuous box type modified-atmosphere packaging device |
| CN202201192U (en) * | 2011-07-01 | 2012-04-25 | 苏州森瑞保鲜科技有限公司 | Automated air-conditioning packaging machine production line |
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