CN108328009B - Heat sealing device of bubble machine - Google Patents
Heat sealing device of bubble machine Download PDFInfo
- Publication number
- CN108328009B CN108328009B CN201710087143.4A CN201710087143A CN108328009B CN 108328009 B CN108328009 B CN 108328009B CN 201710087143 A CN201710087143 A CN 201710087143A CN 108328009 B CN108328009 B CN 108328009B
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- China
- Prior art keywords
- wheel
- heat
- ironing wheel
- electromagnetic heater
- ironing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000007789 sealing Methods 0.000 title claims abstract description 35
- 238000010409 ironing Methods 0.000 claims abstract description 66
- 230000005540 biological transmission Effects 0.000 claims abstract description 18
- 239000002184 metal Substances 0.000 claims description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 abstract description 24
- 238000012546 transfer Methods 0.000 abstract description 12
- 238000013461 design Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 17
- 239000002985 plastic film Substances 0.000 description 11
- 229920006255 plastic film Polymers 0.000 description 11
- 238000003825 pressing Methods 0.000 description 10
- 239000004033 plastic Substances 0.000 description 8
- 206010053615 Thermal burn Diseases 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
- B65B51/10—Applying or generating heat or pressure or combinations thereof
- B65B51/16—Applying or generating heat or pressure or combinations thereof by rotary members
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Package Closures (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
The invention relates to the technical field of bubble machines, in particular to a heat sealing device of a bubble machine, which comprises a ironing wheel and an electromagnetic heater, wherein the ironing wheel is fixedly arranged on a first transmission shaft and rotates along with the first transmission shaft, and the electromagnetic heater and the ironing wheel are arranged at intervals and heat the ironing wheel. The electromagnetic heater is adopted to heat the ironing wheel, and the electromagnetic heater can heat the ironing wheel without directly or through the contact of the heat transfer plate and the ironing wheel, so that the intermediate transfer link of heat is omitted, the heat loss is avoided, the heat efficiency is greatly improved, and the electromagnetic heater has the advantages of high heating speed and uniform heating. And because the electromagnetic heater is spaced from the ironing wheel and is not contacted with the ironing wheel, the structure and the working state of the ironing wheel are not influenced, so that the design of the ironing wheel is simpler and more convenient, and the structure is simplified.
Description
Technical Field
The invention relates to the technical field of bubble machines, in particular to a heat sealing device of a bubble machine.
Background
When the articles are packaged and transported, in order to avoid damage of the articles caused by collision, a buffer material is arranged in a packaging box, and a bubble bag made of plastic films is a common buffer material.
In the existing bubble machine, according to different heat sealing modes, two layers of separated plastic films are adopted to manufacture bubble bags through heat fusion; and some adopt prefabricated double-layer plastic films as raw materials. Whether two separate plastic films or a prefabricated double plastic film are used, the air bubble bag can be formed by heating and sealing after inflation.
In the existing bubble machine, a heating conveyor belt is mostly adopted to realize the conveying and heat sealing of plastic films, namely, the plastic films are clamped between two moving annular conveyor belts and conveyed forward, and meanwhile, a heating device heats the conveyor belts to heat the plastic films to be sealed in a hot melting mode. The disadvantages of this approach are: 1. the conveyor belt made of flexible materials is stressed and heated during working, is easy to damage and has short service life; 2. the heating device heats the plastic film sheet through the conveyor belt, the heat transfer efficiency is low, and the heating speed is low, so that the conveying speed of the plastic film sheet cannot be too high, and the production efficiency is affected.
There are also few bubble machines that heat the plastic film by direct contact with a heating plate that is heated by a heating element. At present, the bubble machine adopting the heating mode has the advantages that the heating elements are in contact heat transfer with the heating plates through the heat transfer plates, the structure is complex, the heat loss is large in the process of heat transfer, the heat efficiency is low, and the defects of uneven heating exist.
Disclosure of Invention
The invention aims to solve the technical problem of providing a heat sealing device of a bubble machine with high heat efficiency and uniform heating so as to overcome the defects in the prior art.
In order to solve the technical problems, the invention adopts the following technical scheme: the utility model provides a heat sealing device of bubble machine, includes scalds wheel and electromagnetic heater, scalds the wheel and fixedly locates on the first transmission shaft and rotate along with the first transmission shaft, electromagnetic heater and scalds the wheel interval setting and heat scalding the wheel.
Preferably, the electromagnetic heater comprises a coil disc which is arranged at intervals with the ironing wheel.
Preferably, the device also comprises a temperature detector for measuring the temperature of the ironing wheel.
Preferably, the ironing wheel is made of a metal material.
Preferably, friction rings are arranged on the outer peripheral surfaces of the two ends of the ironing wheel.
Preferably, the friction ring is made of silica gel.
Preferably, a mounting bracket for mounting the electromagnetic heater is also included.
Preferably, the hot roller also comprises a second transmission shaft parallel to the first transmission shaft and a pressing wheel fixed on the second transmission shaft and rotating along with the second transmission shaft, wherein the rim of the pressing wheel is contacted with the rim of the hot roller.
Compared with the prior art, the invention has obvious progress:
The electromagnetic heater is adopted to heat the ironing wheel, and the electromagnetic heater can heat the ironing wheel without directly or through the contact of the heat transfer plate and the ironing wheel, so that the intermediate transfer link of heat is omitted, the heat loss is avoided, the heat efficiency is greatly improved, and the electromagnetic heater has the advantages of high heating speed and uniform heating. And because the electromagnetic heater is spaced from the ironing wheel and is not contacted with the ironing wheel, the structure and the working state of the ironing wheel are not influenced, so that the design of the ironing wheel is simpler and more convenient, and the structure is simplified.
Drawings
Fig. 1 is a schematic perspective view of a bubble machine to which the heat sealing apparatus of the embodiment of the present invention is applied.
Fig. 2 is an exploded schematic view of the bubble machine shown in fig. 1.
Fig. 3 is a schematic side view of a heat sealing apparatus according to an embodiment of the present invention.
Fig. 4 is a schematic front view of an ironing wheel according to an embodiment of the present invention.
Fig. 5 is a schematic cross-sectional view taken along A-A in fig. 4.
In the figure:
10. frame 20, material frame shaft 30 and air charging device
40. Heat sealing device 50, material pulling device 51 and material pulling rubber wheel
60. Tensioning shaft 1, ironing wheel 11 and metal circumferential surface
12. Friction circumferential surface 2, first transmission shaft 3, coil disk
4. Mounting bracket 41, support rod 5 and temperature detector
6. Friction ring 7, second transmission shaft 8, pinch roller
9. Screw
Detailed Description
The following describes the embodiments of the present invention in further detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and are not intended to be limiting.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
Furthermore, in the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
As shown in fig. 1, the bubble machine generally includes a frame 10, and a frame shaft 20, an inflator 30, a heat sealing device 40, and a drawing device 50 are mounted on the frame 10. Wherein the material rack shaft 20 is used for placing a bag film roll (not shown in the figure) formed by prefabricated plastic bag films, and the material pulling device 50 comprises a pair of material pulling rubber wheels 51 which are mutually pressed and are used for clamping the edges of the plastic bag films, and when rotating, the plastic bag films are released from the bag film roll and move forwards; along the movement direction of the plastic bag film, the air charging device 30 and the heat sealing device 40 are sequentially arranged between the material rack shaft 20 and the material pulling device 50, and when the air charging device 30 charges a proper amount of air into the plastic bag film, the heat sealing device 40 seals the plastic bag film to form an air bubble bag. Preferably, in order to adjust the tensioning degree of the bag film during the conveying process, a tensioning shaft 60 can be further installed on the frame 10, and the axis of the tensioning shaft 60 is parallel to the axes of the two material pulling rubber wheels 51 of the material pulling device 50 and is rotatably installed on the frame 10.
The present invention is directed generally to improvements to the heat sealing apparatus 40 described above.
As shown in fig. 2 to 5, one embodiment of the heat sealing device of the bubble machine of the present invention. The heat sealing device 40 of the bubble machine of this embodiment includes a heat-pressing wheel 1 and an electromagnetic heater, wherein the heat-pressing wheel 1 is fixedly arranged on the first transmission shaft 2 and rotates along with the first transmission shaft 2, and the electromagnetic heater is arranged at intervals with the heat-pressing wheel 1 and heats the heat-pressing wheel 1.
The heat sealing device 40 of the bubble machine of the embodiment adopts the electromagnetic heater to heat the ironing wheel 1, the electromagnetic heater can heat the ironing wheel 1 without directly or contacting the ironing wheel 1 through the heat transfer plate, thereby saving the intermediate transfer link of heat, avoiding heat loss, greatly improving the heat efficiency and having the advantages of high heating speed and uniform heating. In addition, as the electromagnetic heater and the ironing wheel 1 are mutually spaced and are not contacted, the structure and the working state of the ironing wheel 1 are not influenced, so that the design of the ironing wheel 1 is simpler and more convenient, and the structure is simplified.
The ironing wheel 1 in the embodiment is made of a metal material, and can be quickly heated up under the action of an electromagnetic heater to reach the required working temperature in a short time.
Preferably, as shown in fig. 4 and 5, friction rings 6 are provided on the outer circumferential surfaces of both ends of the ironing wheel 1, so that the outer circumferential surface of the ironing wheel 1 includes a metal circumferential surface 11 located in the middle and friction circumferential surfaces 12 located at both sides of the metal circumferential surface 11, and the diameters of the metal circumferential surface 11 and the friction circumferential surfaces 12 are equal. The friction ring 6 is preferably made of silica gel.
The size of the diameter D of the ironing wheel 1 is not limited. In this embodiment, preferably, the diameter D of the ironing wheel 1 satisfies: 50mm < D < 100mm. For example, the diameter D of the ironing wheel 1 may be set to 51mm.
Further, as shown in fig. 2 and 3, in the present embodiment, the electromagnetic heater includes a coil panel 3, and the coil panel 3 is disposed at a distance from the ironing wheel 1. In the present embodiment, the coil panel 3 is disposed coaxially with the ironing wheel 1. Of course, the relative positions of the coil panel 3 and the ironing wheel 1 are not limited to the present embodiment. In the electromagnetic heating mode, the coil panel is one of important devices for completing LC oscillation, is a device for storing and releasing electric energy, and is a key device for completing conversion of electric field energy into magnetic field energy. The heating mode can reduce the intermediate links of heat transfer, thereby greatly improving the heat efficiency and realizing uniform heating. In actual operation, the control circuit in the electromagnetic heater can convert the direct current voltage rectified by the commercial power into high-frequency voltage with the frequency of about 30kHz, and then the coil panel 3 generates a high-frequency alternating magnetic field, so that eddy currents are generated in the adjacent metal ironing wheels 1, the metal ironing wheels 1 are heated rapidly, and the required working temperature is reached in a short time.
To achieve the installation of the electromagnetic heater, preferably, the heat sealing device 40 of the present embodiment further includes a mounting bracket 4 for mounting the electromagnetic heater, the mounting bracket 4 is mounted on the frame 10, and the mounting bracket 4 is located above the ironing wheel 1. Preferably, the mounting bracket 4 in this embodiment is in a semicircle shape, the size of which matches the size of the coil panel 3, the top and two ends of the semicircle mounting bracket 4 are respectively provided with a support bar 41, and the semicircle mounting bracket 4 is mounted on the frame 10 through the support bar 41. In this embodiment, the support bar 41 is integral with the semicircular mounting bracket 4. The upper half part of the coil panel 3 is fixedly connected with the mounting bracket 4. In this embodiment, the coil panel 3 is coaxial with the ironing wheel 1 after being mounted on the mounting bracket 4, that is, the coil panel 3 is parallel to the ironing wheel 1, and a space is provided between the coil panel 3 and the ironing wheel 1 along the axial direction of the coil panel 3 and the ironing wheel 1.
The size of the space between the coil panel 3 and the ironing wheel 1 is not limited. In the present embodiment, preferably, the distance L between the coil disk 3 and the ironing wheel 1 satisfies: l is more than 4mm and less than 8mm, so as to meet the electromagnetic heating requirement. For example, the distance L between the coil disk 3 and the ironing wheel 1 may be set to 5mm.
Further, in order to control the temperature of the ironing wheel 1, it is preferable that the heat sealing device 40 of the present embodiment further includes a temperature detector 5 for measuring the temperature of the ironing wheel 1. The temperature of the ironing wheel 1 is measured in real time through the temperature measuring device 5, and the electromagnetic heater is adjusted according to the measurement result, so that the temperature of the ironing wheel 1 can be effectively controlled, and the influence on heat sealing quality due to overhigh temperature of the ironing wheel 1 is avoided. The temperature detector 5 in this embodiment is mounted on the frame and is close to the first drive shaft 2. The temperature detector 5 is connected with the frame through a screw 9. The temperature detector 5 may be a temperature sensor.
Further, in order to provide support for the ironing wheel 1 at the time of sealing, it is preferable that the heat sealing device 40 of the present embodiment further includes a second transmission shaft 7 parallel to the first transmission shaft 2 and a pressing wheel 8 fixed to the second transmission shaft 7 and rotated together with the second transmission shaft 7, and the rim of the pressing wheel 8 is in rolling contact with the rim of the ironing wheel 1. In this embodiment, the pressing wheel 8 contacts with the metal circumferential surface 11 of the ironing wheel 1, so as to provide a proper heat sealing pressure for the plastic bag film pressed between them, and ensure the quality of heat sealing. The contact between the pinch roller 8 and the friction circumferential surface 12 of the ironing wheel 1 can provide a proper pulling force for the plastic bag film pressed between them to play a role of pulling materials, so that in order to better generate the pulling friction force, the pinch roller 8 is preferably a rubber wheel.
Because the contact of the pressing wheel 8 and the friction circumferential surface 12 of the ironing wheel 1 can play a role of pulling materials, the heat sealing device 40 of the bubble machine of the embodiment can also be used as a pulling device at the same time, thereby omitting the setting of the pulling device 50 and further simplifying the overall structure of the bubble machine. Of course, the material pulling device 50 and the heat sealing device 40 of the present embodiment may be provided at the same time, and the heat sealing device 40 of the present embodiment plays a role of assisting in pulling material.
In summary, the heat sealing device 40 of the air bubble machine of the embodiment adopts the electromagnetic heater to heat the ironing wheel 1, so that the intermediate transfer link of heat is omitted, the heat loss is avoided, the heat efficiency is greatly improved, and the air bubble machine has the advantages of high heating speed and uniform heating. In addition, as the electromagnetic heater and the ironing wheel 1 are mutually spaced and are not contacted, the structure and the working state of the ironing wheel 1 are not influenced, so that the design of the ironing wheel 1 is simpler and more convenient, and the structure is simplified.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present invention, and these modifications and substitutions should also be considered as being within the scope of the present invention.
Claims (5)
1. The utility model provides a heat sealing device of bubble machine, its characterized in that, including scalding wheel (1) and electromagnetic heater, scalding wheel (1) is fixed locate on first transmission shaft (2) and along with first transmission shaft (2) rotates together, electromagnetic heater with scalding wheel (1) interval sets up and right scalding wheel (1) heats, scalding wheel (1) adopts metal material to make, be equipped with friction ring (6) on the outer peripheral face at the both ends of scalding wheel (1) for scalding the outer peripheral face of wheel (1) including being located metal periphery (11) in the middle and being located friction periphery (12) of metal periphery (11) both sides, just metal periphery (11) with the diameter of friction periphery (12) equals, friction ring (6) adopt the silica gel to make.
2. The heat sealing device of a bubble machine according to claim 1, wherein the electromagnetic heater comprises a coil disc (3), the coil disc (3) being arranged at a distance from the ironing wheel (1).
3. The heat sealing device of a bubble machine according to claim 1, further comprising a temperature detector (5) for measuring the temperature of the ironing wheel (1).
4. The heat sealing device of a bubble machine according to claim 1, further comprising a mounting bracket (4) for mounting the electromagnetic heater.
5. The heat sealing device of a bubble machine according to claim 1, further comprising a second drive shaft (7) parallel to the first drive shaft (2) and a pinch roller (8) fixed to the second drive shaft (7) and rotating with the second drive shaft (7), the rim of the pinch roller (8) being in contact with the rim of the ironing wheel (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710087143.4A CN108328009B (en) | 2017-01-20 | 2017-02-17 | Heat sealing device of bubble machine |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720069317X | 2017-01-20 | ||
| CN201720069317 | 2017-01-20 | ||
| CN201710087143.4A CN108328009B (en) | 2017-01-20 | 2017-02-17 | Heat sealing device of bubble machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108328009A CN108328009A (en) | 2018-07-27 |
| CN108328009B true CN108328009B (en) | 2024-05-07 |
Family
ID=62921552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710087143.4A Active CN108328009B (en) | 2017-01-20 | 2017-02-17 | Heat sealing device of bubble machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108328009B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110342148A (en) * | 2019-08-09 | 2019-10-18 | 广东派生活智能环保产品有限公司 | A kind of intelligent garbage bin refuse bag automatic sealing device |
| CN114671090B (en) * | 2022-04-08 | 2024-05-07 | 济南泉华包装制品有限公司 | Automatic seal cutting machine equipment |
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| GB1146691A (en) * | 1964-12-30 | 1969-03-26 | Beanwy Electric Ltd | Improvements in, or relating to, induction heated appliances for sealing, serrating or cutting thermoplastic sheets or the like |
| JPH0939919A (en) * | 1995-07-26 | 1997-02-10 | Fuji Mach Co Ltd | Longitudinal sealing apparatus in bag making, filling and packaging machine |
| JP2003104327A (en) * | 2001-09-28 | 2003-04-09 | Fuji Mach Co Ltd | Vertical seal apparatus in bag manufacturing and filling machine |
| EP2213577A2 (en) * | 2009-01-29 | 2010-08-04 | KPL Packaging S.p.A. | Heat-sealing device and method for packaging machines, and packaging machine comprising said device |
| CN102566376A (en) * | 2010-12-17 | 2012-07-11 | 株式会社理光 | Fixing device and image forming apparatus incorporating same |
| JP3177414U (en) * | 2012-05-22 | 2012-08-02 | 有限会社ナカイ | Electromagnetic induction heating device |
| CN204801110U (en) * | 2015-07-22 | 2015-11-25 | 上海名优办公设备有限公司 | Sealing device of bubble machine |
| CN105773958A (en) * | 2016-05-18 | 2016-07-20 | 上海阁泰环保科技有限公司 | Non-contact heating and rolling sewing device |
| CN105818440A (en) * | 2015-01-09 | 2016-08-03 | 上海名优办公设备有限公司 | Bubbling machine |
| CN206528712U (en) * | 2017-01-20 | 2017-09-29 | 上海名优办公设备有限公司 | A kind of heat-sealing device of air bubble machine |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2335376B1 (en) * | 2008-01-14 | 2011-01-17 | Bsh Electrodomesticos España, S.A. | INDUCTION HEATING BODY WITH A CIRCULAR INDUCTOR COIL. |
| US7950433B2 (en) * | 2009-02-12 | 2011-05-31 | Sealed Air Corporation (Us) | Machine for inflating and sealing an inflatable web |
| TWI535629B (en) * | 2012-08-15 | 2016-06-01 | 亞比斯包材工場股份有限公司 | Continuous sealing device and its storage and delivery table |
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2017
- 2017-02-17 CN CN201710087143.4A patent/CN108328009B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1146691A (en) * | 1964-12-30 | 1969-03-26 | Beanwy Electric Ltd | Improvements in, or relating to, induction heated appliances for sealing, serrating or cutting thermoplastic sheets or the like |
| JPH0939919A (en) * | 1995-07-26 | 1997-02-10 | Fuji Mach Co Ltd | Longitudinal sealing apparatus in bag making, filling and packaging machine |
| JP2003104327A (en) * | 2001-09-28 | 2003-04-09 | Fuji Mach Co Ltd | Vertical seal apparatus in bag manufacturing and filling machine |
| EP2213577A2 (en) * | 2009-01-29 | 2010-08-04 | KPL Packaging S.p.A. | Heat-sealing device and method for packaging machines, and packaging machine comprising said device |
| CN102566376A (en) * | 2010-12-17 | 2012-07-11 | 株式会社理光 | Fixing device and image forming apparatus incorporating same |
| JP3177414U (en) * | 2012-05-22 | 2012-08-02 | 有限会社ナカイ | Electromagnetic induction heating device |
| CN105818440A (en) * | 2015-01-09 | 2016-08-03 | 上海名优办公设备有限公司 | Bubbling machine |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN108328009A (en) | 2018-07-27 |
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