CN106827554B - A kind of large scale Ultrasonic Plastic boxing system - Google Patents
A kind of large scale Ultrasonic Plastic boxing system Download PDFInfo
- Publication number
- CN106827554B CN106827554B CN201611193613.7A CN201611193613A CN106827554B CN 106827554 B CN106827554 B CN 106827554B CN 201611193613 A CN201611193613 A CN 201611193613A CN 106827554 B CN106827554 B CN 106827554B
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- China
- Prior art keywords
- ultrasonic
- dish type
- soldering tip
- large scale
- converter
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B3/00—Methods or apparatus specially adapted for transmitting mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
Abstract
The invention discloses a kind of ultrasonic activation mode conversion methods, utilize extensional vibration-mutual transfer principle of bending vibration-extensional vibration mode of oscillation, comprising the following steps: Step 1: the ultrasonic wave of longitudinal vibration mode to be converted to the ultrasonic wave of flexural vibration mode；Step 2: metal ring soldering tip is fixed on the vibration wave amplitude position that dish type indulges curved vibratory converter flexural vibration mode, the metal ring soldering tip is made to work in longitudinal vibration mode.The invention also discloses a kind of large scale Ultrasonic Plastic boxing system, the system for realizing ultrasonic activation mode conversion and large scale plastic weld ultrasonic bonding.The present invention expands traditional Ultrasonic Plastic Welding systematic difference range, reduces production cost, improves the working efficiency of traditional Ultrasonic Plastic Welding system.
Description
Technical field
The invention belongs to Ultrasonic Plastic Welding fields, and in particular to a kind of large scale Ultrasonic Plastic boxing system.
Background technique
Ultrasonic Plastic Welding is the high-tech technology of welding thermoplastic articles, and various thermoplastic cement parts can be used
Ultrasonic fusing processing, in welding plastic product, both not add any bonding agent, filler or solvent, also not consume a large amount of
Heat source has many advantages, such as that easy to operate, speed of welding is fast, weld strength is high, high production efficiency.Therefore, ultrasonic welding technique
It is applied more and more widely.
Ultrasonic Plastic Welding have been widely used for automobile, electronics, medical treatment, household electrical appliances, without cotton ready made clothings, office appliance, packet
It is filled with and toy industry etc..Such as vehicle body plastic part, arrangements for automotive doors, automobile instrument, car light vehicle mirror, sunshading board, inside gadget, filter
Clear device, Cellphone Accessories, charger, toy stationery, print cartridge, toner cartridge, washing machine, electric iron, dust catcher etc..
Traditional Ultrasonic Plastic Welding system is usually by ultrasonic transducer, ultrasonic amplitude transformer and to be suitable for difference
The first-class composition of the ultrasonic bonding tool of part geometry to be welded, such as Patent No. CN201320437227.3, proprietary term
The referred to as Chinese invention patent of ultrasonic welding machine；Patent No. CN201220185648.7, patent name are bearing for another example
The Chinese invention patent of plastic cage ultrasonic brazing unit.Traditional Ultrasonic Plastic Welding system, its working principle is that
Longitudinal vibration mode based on ultrasonic vibration system, i.e. large-power supersonic transducer generate extensional vibration, pass through longitudinal vibration
After dynamic amplitude transformer carries out vibration displacement amplification, pushes soldering appliance head to generate the ultrasonic activation with frequency, ultrasonic energy is transmitted
Localized hyperthermia can be generated since acoustic resistance is big at welding zone to welding zone.It, for the moment can't be timely again due to plastics poor thermal conductivity
It distributes, is gathered in welding zone, the contact surface of two plastics is caused to melt rapidly, in addition it is fused into one after certain pressure, it is complete
At the whole process of Ultrasonic Plastic Welding.
Since such ultrasonic vibration system is designed based on traditional one-dimensional longitudinal vibration theory, ordinary circumstance
Under, the lateral dimension of such Ultrasonic Plastic Welding system should be less than a quarter of longitudinal wavelength, therefore, traditional ultrasonic wave
The lateral dimension of plastics welding system is restricted, it is impossible to be used in the ultrasonic bonding of larger geometric dimension device.
Summary of the invention
It is restricted to solve the lateral dimension of traditional Ultrasonic Plastic Welding system, it is impossible to be used in larger dimensioning
The ultrasonic bonding of very little device, the present invention provides a kind of ultrasonic activation mode conversion method and large scale Ultrasonic Plastic rings
Weldering system.The technical scheme of the present invention is realized as follows:
A kind of ultrasonic activation mode conversion method utilizes extensional vibration-bending vibration-extensional vibration mode of oscillation
Mutual transfer principle, comprising the following steps:
Step 1: the ultrasonic wave of longitudinal vibration mode to be converted to the ultrasonic wave of flexural vibration mode；
Step 2: metal ring soldering tip is fixed on the vibration wave amplitude position that dish type indulges curved vibratory converter flexural vibration mode
It sets, the metal ring soldering tip is made to work in longitudinal vibration mode.
Above-mentioned ultrasonic activation mode conversion method, the step 1 are that curved vibratory converter and ultrasound are indulged by dish type
The ultrasonic wave for the longitudinal vibration mode that energy converter and ultrasonic variable amplitude bar generate is converted to bending vibration by the connection of wave amplitude transformer
The ultrasonic wave of mode.
Above-mentioned ultrasonic activation mode conversion method, the energy converter, the ultrasonic variable amplitude bar, the dish type are indulged curved
Vibratory converter and the metal ring soldering tip are in resonance state.
A kind of large scale Ultrasonic Plastic boxing system, including converting electrical energy into the energy converter of mechanical oscillation, for converging
The ultrasonic variable amplitude bar and metal ring soldering tip of poly- ultrasonic wave, the ultrasonic wave receiving end of the ultrasonic variable amplitude bar and the transducing
The ultrasonic wave output terminal of device is fixedly connected, and further includes to turn the longitudinal mode ultrasonic wave received from the ultrasonic variable amplitude bar
The dish type for being changed to flexural vibration mode ultrasonic wave indulges curved vibratory converter；
The ultrasonic wave output terminal of the ultrasonic variable amplitude bar is fixedly connected with the dish type and indulges curved vibratory converter, the metal
Annulus soldering tip may be detachably retained at the dish type and indulge on curved vibratory converter, and the dish type is indulged curved vibratory converter and set
Between the ultrasonic variable amplitude bar and the metal ring soldering tip.
It particularly points out, in order to expand traditional Ultrasonic Plastic Welding systematic difference range, metal ring of the invention
Soldering tip is preferably large-sized metal ring soldering tip.
As a preferred embodiment of the present invention, the thickness that the dish type indulges curved vibratory converter is less than the ten of its diameter
/ mono-.
As a preferred embodiment of the present invention, the ultrasonic variable amplitude bar is indulged curved vibratory converter with the dish type and is connect
The size of contacting surface is less than the dish type and indulges 1/10th of curved vibratory converter bending vibration wavelength.
As a preferred embodiment of the present invention, the metal ring soldering tip is located at the dish type and indulges curved vibratory converter
Bending vibration displacement wave amplitude at, and the radial thickness of the metal ring soldering tip be less than the dish type indulge curved vibratory converter
/ 10th of bending vibration wavelength.
As a preferred embodiment of the present invention, the outer wall of the metal ring soldering tip is equipped with multiple grooves, and
The groove is communicated with the inner cavity of metal ring soldering tip.
As a preferred embodiment of the present invention, the energy converter, ultrasonic variable amplitude bar and metal ring soldering tip are vertical
Curved vibratory converter setting is indulged in the dish type.
As a preferred embodiment of the present invention, the energy converter, ultrasonic variable amplitude bar, dish type indulge curved vibratory converter
And each self-resonant frequency of metal ring soldering tip is identical as the vibration frequency of ultrasonic wave annular plastics welding system.
Beneficial effects of the present invention:
Compared with traditional one-dimensional longitudinal vibration system, present invention utilizes extensional vibration-bending vibration-extensional vibrations
The principle mutually converted of mode of oscillation, realize the large scale output of Ultrasonic Plastic Welding system.Therefore, the present invention expands
Traditional Ultrasonic Plastic Welding systematic difference range, reduces production cost, improves traditional Ultrasonic Plastic weldering
The working efficiency of welding system.
The present invention is described in further details below with reference to accompanying drawings and embodiments.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
Fig. 2 is the structural schematic diagram of bimetallic annulus soldering tip of the present invention.
In figure: 1. energy converters；2. ultrasonic variable amplitude bar；3. dish type indulges curved vibratory converter；4. metal ring soldering tip；10.
Sandwich piezoelectric ceramic transducer；401. large scale metal ring soldering tips I；402. large scale metal ring soldering tips II.
Specific embodiment
Reach the technical means and efficacy that predetermined purpose is taken for the present invention is further explained, below in conjunction with attached drawing and reality
Example is applied to a specific embodiment of the invention, structure feature and its effect, detailed description are as follows.
It should be understood that the side of the instructions such as term " on " of the invention, "lower", " top surface ", " bottom surface ", "inner", "outside"
Position or positional relationship are to be based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description of the present invention and simplification of the description,
Rather than the device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation, because
This is not considered as limiting the invention.
Embodiment 1:
The present invention is the principle that extensional vibration-bending vibration-extensional vibration mode of oscillation is utilized and mutually converts, public
A kind of ultrasonic activation mode conversion method has been opened, method includes the following steps:
It contacts, makes Step 1: the ultrasonic variable amplitude bar 2 in longitudinal vibration mode is indulged curved vibratory converter 3 with dish type
Dish type indulges curved vibratory converter 3 and is in flexural vibration mode；
It contacts, makes with metal ring soldering tip 4 Step 2: the dish type in flexural vibration mode is indulged curved vibratory converter 3
It obtains metal ring soldering tip 4 and is in longitudinal vibration mode.
Ultrasonic variable amplitude bar 2 in this method, dish type indulge curved vibratory converter 3 and metal ring soldering tip 4 is in resonance
State, and the ultrasonic variable amplitude bar 2 in the present embodiment, dish type indulge the work frequency of curved vibratory converter 3 and metal ring soldering tip 4
Rate can be designed specifically according to actual needs, as long as Ultrasonic Plastic Welding work can be completed.
Referring to Fig.1, the present embodiment emphasis discloses a kind of large scale for realizing ultrasonic activation mode conversion method
Ultrasonic Plastic boxing system, it includes energy converter 1, ultrasonic variable amplitude bar 2, the fixed company of the other end with ultrasonic variable amplitude bar 2
The dish type connect indulges curved vibratory converter 3 and metal ring soldering tip 4, and one end of ultrasonic variable amplitude bar 2 is fixedly connected with energy converter 1,
Dish type indulges the top that curved vibratory converter 3 is located at large scale metal ring soldering tip, and dish type indulges curved vibratory converter 3 and large scale gold
Belong to annulus soldering tip to be fixedly connected.The present embodiment is fixedly connected preferably using dismountable mode.
Wherein, large scale metal ring soldering tip is located at dish type and indulges at the bending vibration displacement wave amplitude of curved vibratory converter 3, excellent
It selects large scale metal ring soldering tip to be rigidly secured to dish type to indulge at the bending vibration displacement wave amplitude of curved vibratory converter 3.
Wherein, the energy converter 1 of the present embodiment, ultrasonic variable amplitude bar 2 and large scale metal ring soldering tip should be strictly perpendicular to
Dish type indulges curved vibratory converter 3.
Wherein, it in order to guarantee the unicity of the longitudinal vibration mode in large scale loop-shaped ultrasound Plastics jointing tool, avoids shaking
The outer wall of coupling between dynamic model formula, large scale metal ring soldering tip is equipped with multiple grooves, groove and large scale metal ring
The inner cavity of soldering tip communicates.It is preferred that the short transverse in large scale metal ring soldering tip processes certain amount and certain geometric dimension
Straight trough.
Wherein, being fixedly connected of the energy converter 1 in the present embodiment and ultrasonic variable amplitude bar 2, ultrasonic variable amplitude bar 2 and dish type
Indulge being fixedly connected of curved vibratory converter 3, dish type indulges being fixedly connected for curved vibratory converter 3 and large scale metal ring soldering tip,
It can be using any fixed forms such as welding in the prior art, threaded connection, riveting, clampings, as long as being able to satisfy large scale
The rigid connection of Ultrasonic Plastic boxing system.It is preferred that being fixedly connected using in high-intensitive prestressing force in the present embodiment
The connection of heart metal bolts, this fixed form can make whole system have good stability.
Wherein, ultrasonic variable amplitude bar 2 is made of metal material elastic big, that intensity is high, mechanical loss is small, as titanium alloy,
Alloy aluminum, almag, stainless steel or copper etc..The cross sectional shape of ultrasonic variable amplitude bar 2 can be cone, exponential type, stretched wire
Linear, stepped and its compound shape composition.
Wherein, dish type is indulged curved vibratory converter 3 and is made of elastic metal material big, that intensity is high, mechanical loss is small, such as titanium
Alloy, alloy aluminum, almag, stainless steel or copper etc..It is preferred that it is cross-section disc structure that dish type, which indulges curved vibratory converter 3,.
Wherein, large scale metal ring soldering tip is made of elastic metal material big, that intensity is high, mechanical loss is small, material
Material can be titanium alloy, aluminium alloy, almag, stainless steel or copper etc..It is preferred that metal ring soldering tip 4 is circular ring with constant cross section structure.
It may be noted that in the present embodiment, for the contact surface for guaranteeing each component part of large scale Ultrasonic Plastic boxing system
Between be in close contact, reduce mechanical loss, improve energy transmission efficiency etc., each the connecing of large scale Ultrasonic Plastic boxing system
Touching surface should ensure that higher flatness and finish.
It may be noted that in order to meet the requirement of the technique of ultrasonic activation mode conversion, a kind of large scale that the present embodiment proposes
In Ultrasonic Plastic boxing system, the thickness that preferably dish type indulges curved vibratory converter 3 is less than 1/10th of its diameter；It is preferred that super
The size that sound wave amplitude transformer 2 and dish type indulge curved 3 contact surface of vibratory converter is less than dish type and indulges curved 3 bending vibration wave of vibratory converter
Long 1/10th；It is preferred that the wall thickness of large scale metal ring soldering tip, which should be less than dish type, indulges curved 3 bending vibration wave of vibratory converter
Long 1/10th.Also, the preferred sandwich piezoelectric ceramic transducer 10 of energy converter in the present embodiment, sandwich piezoelectricity
Resonant frequency, output power and the intensity of ceramic ultrasonic 10 should be determined according to the case where practical relay part to be welded.
It particularly points out, the energy converter 1 of the present embodiment, ultrasonic variable amplitude bar 2, dish type indulge curved vibratory converter 3 and large scale
Each self-resonant frequency of metal ring soldering tip is consistent with the vibration frequency of ultrasonic wave annular plastics welding system.
Compared with traditional one-dimensional longitudinal vibration system, extensional vibration-bending vibration-longitudinal direction vibration is utilized in the present embodiment
The principle that dynamic mode of oscillation is mutually converted realizes the large scale output of Ultrasonic Plastic Welding system.Therefore, the present embodiment
Traditional Ultrasonic Plastic Welding systematic difference range is expanded, production cost is reduced, improves traditional ultrasonic wave modeling
Expect the working efficiency of welding system.
Embodiment 2:
The difference of the present embodiment and embodiment 1 is metal ring soldering tip 4.
The present embodiment is the flexural vibration mode that curved vibratory transducer is indulged by rationally designing dish-type, so that large scale is ultrasonic
Wave plastics boxing system can drive multiple large scale Ultrasonic Plastic annular soldering tips simultaneously, to improve the work of vibrational system
Efficiency.
For the efficient stable work for guaranteeing vibrational system, each annular soldering tip must be positioned at dish type and indulge curved vibratory converter
At 3 bending vibration displacement wave amplitude.
Referring to Fig. 2, the annular soldering tip of the present embodiment includes large scale metal ring soldering tip I 401 and large scale metal ring
Soldering tip II 402, the internal diameter of large scale metal ring soldering tip I 401 are greater than the outer diameter of large scale metal ring soldering tip II 402, and
Large scale metal ring soldering tip I 401 and large scale metal ring soldering tip II 402 are respectively positioned on dish type and indulge the curved of curved vibratory converter 3
At bent vibration displacement wave amplitude.
It should be noted that annular soldering tip of the invention is not limited in two, according to the actual situation, using the prior art
In formula carry out detailed calculating, can determine the distribution situation of annular soldering tip.
The present embodiment is improved whole by fixing multiple metal ring soldering tips in large scale Ultrasonic Plastic boxing system
The working efficiency of a boxing system.
Embodiment 3:
Below with working frequency for 20 kHz, with each of calculation formula in the prior art and accurate Knowing material
Item parameter, setting sandwich piezoelectric ceramic transducer 10, the ultrasonic vibrator that ultrasonic variable amplitude bar 2 is half-wavelength, design
Dish type indulges curved vibratory converter out and the parameter of metal ring soldering tip is as follows:
1. when the material that dish type indulges curved vibratory converter is aluminium alloy, when the material of metal ring soldering tip is aluminium alloy:
Dish type indulges radius R=0.084 meter of curved vibratory converter, with a thickness of T=0.015 meter；
Outer diameter R1=0.084 meter of metal ring soldering tip, internal diameter R2=0.0756 meter are highly H=0.12 meter.
2. when the material that dish type indulges curved vibratory converter is stainless steel, when the material of metal ring soldering tip is aluminium alloy:
Dish type indulges radius R=0.085 meter of curved vibratory converter, with a thickness of T=0.0152 meter；
Outer diameter R1=0.085 meter of metal ring soldering tip, internal diameter R2=0.0765 meter are highly H=0.12 meter.
3. when the material that dish type indulges curved vibratory converter is titanium alloy, when the material of metal ring soldering tip is aluminium alloy:
Dish type indulges radius R=0.083 meter of curved vibratory converter, with a thickness of T=0.0147 meter；
Outer diameter R1=0.083 meter of metal ring soldering tip, internal diameter R2=0.0747 meter are highly H=0.12 meter.
The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be said that
Specific implementation of the invention is only limited to these instructions.For those of ordinary skill in the art to which the present invention belongs, exist
Under the premise of not departing from present inventive concept, a number of simple deductions or replacements can also be made, all shall be regarded as belonging to of the invention
Protection scope.
Claims (7)
1. a kind of large scale Ultrasonic Plastic boxing system, including converting electrical energy into the energy converter (1) of mechanical oscillation, for converging
The ultrasonic variable amplitude bar (2) and metal ring soldering tip (4) of poly- ultrasonic wave, the ultrasonic wave input terminal of the ultrasonic variable amplitude bar (2)
It is fixedly connected with the ultrasonic wave output terminal of the energy converter (1), it is characterised in that: further include to will be received from the ultrasonic wave
The dish type that the longitudinal mode ultrasonic wave of amplitude transformer (2) is converted to flexural vibration mode ultrasonic wave indulges curved vibratory converter (3)；
The ultrasonic wave output terminal of the ultrasonic variable amplitude bar (2) is fixedly connected with the dish type and indulges curved vibratory converter (3), the gold
Category annulus soldering tip (4) may be detachably retained at the dish type and indulge on curved vibratory converter (3), and it is dynamic that the dish type indulges bending vibration
Converter (3) is placed between the ultrasonic variable amplitude bar (2) and the metal ring soldering tip (4).
2. large scale Ultrasonic Plastic boxing system according to claim 1, which is characterized in that it is dynamic that the dish type indulges bending vibration
The thickness of converter (3) is less than 1/10th of its diameter.
3. large scale Ultrasonic Plastic boxing system according to claim 1, which is characterized in that the ultrasonic variable amplitude bar
(2) size that curved vibratory converter (3) contact surface is indulged with the dish type is less than the dish type and indulges curved vibratory converter (3) bending vibration
/ 10th of dynamic wavelength.
4. large scale Ultrasonic Plastic boxing system according to any one of claim 1-3, which is characterized in that the gold
Category annulus soldering tip (4), which is located at the dish type, to be indulged at the bending vibration displacement wave amplitude of curved vibratory converter (3), and the round metal
The radial thickness of boxing head (4) is less than the dish type and indulges 1/10th of curved vibratory converter (3) bending vibration wavelength.
5. large scale Ultrasonic Plastic boxing system according to any one of claim 1-3, which is characterized in that the gold
The outer wall for belonging to annulus soldering tip (4) is equipped with multiple grooves, and the groove is communicated with the inner cavity of metal ring soldering tip (4).
6. large scale Ultrasonic Plastic boxing system according to any one of claim 1-3, which is characterized in that described to change
Energy device (1), ultrasonic variable amplitude bar (2) and metal ring soldering tip (4) indulge curved vibratory converter (3) setting perpendicular to the dish type.
7. large scale Ultrasonic Plastic boxing system according to any one of claim 1-3, which is characterized in that described to change
Energy device (1), ultrasonic variable amplitude bar (2), dish type indulge each self-resonant frequency of curved vibratory converter (3) and metal ring soldering tip (4)
It is identical as the vibration frequency of ultrasonic wave annular plastics welding system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611193613.7A CN106827554B (en) | 2016-12-21 | 2016-12-21 | A kind of large scale Ultrasonic Plastic boxing system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611193613.7A CN106827554B (en) | 2016-12-21 | 2016-12-21 | A kind of large scale Ultrasonic Plastic boxing system |
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| Publication Number | Publication Date |
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| CN106827554A CN106827554A (en) | 2017-06-13 |
| CN106827554B true CN106827554B (en) | 2019-01-01 |
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| CN107825717A (en) * | 2017-11-21 | 2018-03-23 | 成都荡星星进出口贸易有限公司 | Packaging bag production drift and abnormity packaging bag production device |
| CN107901327B (en) * | 2017-12-22 | 2020-06-23 | 上海英汇科技发展有限公司 | Method for welding automobile window frame decorative strip |
| CN109499829B (en) * | 2018-12-31 | 2021-03-05 | 陕西师范大学 | Ultrasonic vibration system based on phononic crystal groove and radial vibration suppression method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1329532C (en) * | 2004-04-28 | 2007-08-01 | 赵显华 | Ultrasonic metal surface processing device |
| CN202058441U (en) * | 2011-03-24 | 2011-11-30 | 无锡中科超声技术有限公司 | High-temperature high-power longitudinal bending vibration ultrasonic transducer |
| CN104014473B (en) * | 2014-05-16 | 2016-06-15 | 中国计量学院 | A kind of large amplitude sandwich piezoelectric supersonic composite transducer |
| CN106179929A (en) * | 2016-07-11 | 2016-12-07 | 杨林 | Rotary ultrasonic machining vibrating device |
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