Ultrasonic Food Cutter

The principle of ultrasonic cutting is completely different from the traditional sense of cutting. It uses the energy of ultrasonic, heating and melting part of the material, so as to achieve the goal of cutting material, which is the reason that ultrasonic does not require sharp edge and much pressure, and that it will not cause edge broken and damage of the material being cut.

At the same time, as the cutter is doing ultrasonic vibration, the friction is very small and the material being cut is not easy to stick to the blade, which is particularly effective to viscous and elastic material, frozen materials, such as food, rubber and so on, or to object can not be cut by pressure. Another great advantage of ultrasonic cutting is that there is fusion effect at the cutting parts when cutting the material, which means the part being cut is perfectly sealed, preveting loose of the material being cut(such as textile material flash). The use of ultrasonic cutting machine can be extentended, such as digging holes, shovel digging, scraping paint, sculpture, sub-section and so on.

Ultrasonic Food Processing
Ultrasonic Cutter bring beautiful and clean cutting.
BRDASON ultrasonics offer an innovative food processing by using ultrasonic food cutter.
The ultrasonic blade which called horn vibrates at high frequencies of 20kHz or 35kHz, and this high-frequency vibration reduces the friction resistance at cutting surface. This low-friction cutting make a blade cut the food products smoothly. It brings clean and beautiful cutting surface for various food products.
Also, ultrasonic cutting reduces the chips of foods during cutting. This yield reducing the down time to clean up of your production system.

Our ultrasonic food cutter will be able to install easily in your current production system.
If some trouble was happened at ultrasonic equipments, the ultrasonic generator output the error signal to customer’s PLC. The system can detect the trouble and stop the system immediatelly.

Features of Ultrasonic Food Cutting

- Ultrasonic vibration reduces friction resistance between the blade and food, and it makes the blade cut smoothly without deformation.
- The cutting blade is made of titanium. It is completely inert and enduring material.
- Because it reduce the chips of food during cutting and foulings on the blade, you can reduce the down time to clenaning and increase the productivity.
- It is suitable for the food products which include different hardness foods such as nuts and dried fruits

Applications
- Cheese
- Snack bars and health bars
- Cake and bread
- Prepared meats
- Pizza, bekary and quiche
- Gum and candy

Related reading:ultrasonic plastic welding  Ultrasonic Welding Transducer

Advantages of modern ultrasonic drilling

The Ultrasonic/Sonic Driller/Corer (USDC) is a drilling device that uses vibrations in order to hammer its bit through materials, as opposed to traditional drilling methods. The drill uses a piezoelectric actuator as its source of power, and utilizes a variety of ‘horns’ to vibrate, or hammer, its bit through the material. A prototype of the drill was first released by NASA in April 2000, which weighed 1.5 lb. (.7 kg) and had the capacity to drill half-inch holes into granite using only 10 watts of power, whereas the modern household half-inch drill requires 750 watts. The USDC was originally designed to be able to drill through very rigid rock surfaces that would otherwise be damaged by a rotary drill, but has also shown potential usefulness to the field of medicine. It is the specific characteristics of the drill that make it ideal or practical for certain situations.

How it works
The USDC is driven by a Piezoelectric stack actuator that creates the vibrations. The actuator vibrates at an extremely high frequency, making it ultrasonic, and it is these waves of vibration that are transmitted by the horn of the actuator all the way to the bit itself. The vibrations are created at the actuator and are transferred by the horn to a free mass. The free mass vibrates between the drill stem and the horn of the actuator to transmit the vibrations down the drill stem. The drill stem houses the drill bit, and the vibrations push the bit into the material. The repetitive impact on the drill stem by the free mass, creates stress pulses that transmit to the tip of the bit and into the rock. Ultimately, the repetitive strike of the bit produces enough strain on the surface to fracture it.

Horn structures
There are four primary styles of horns, those being:
conical-straight horn – a cone shaped horn coming to a cylindrical point
conical horn – a cone shaped horn, but not coming to a point
step horn – two stacked cylinders, the second being smaller than the first
exponential horn -a cone shaped horn that comes to a point.

As a leader in ultrasonic products ,  Altrasonic offers products, engineering and support service to industry segments including: Ultrasonic Horn Analyzer , automotive , welding, food cutting, sonochemistry, medical , battery , other electrical segments , solar and more.

Related reading: ultrasonic sewing machine  Ultrasonic Welding Transducer

Langevin transducer

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Sketch showing a Langevin transducer, commonly used in High power ultrasonic transducer systems. The device has a resonance at a thickness mode along its cylindrical axis. Four white ceramic piezoelectric discs are held in the centre under compression by a high tensile steel bolt (black) running through the centre of the Langevin device. Beryllium/copper shim is used between the piezoelectric discs for making electrical connections. At resonance the flat end faces are anti-nodes making the cyclinder a half-wavelength long. The device is designed to have a high mechanical quality factor, Q. The piezoelectric discs pump energy into the resonator at the frequency of resonance and in the absence of any loss of energy the amplitude becomes larger and larger. In use the Langevin transducer is generally coupled to a waveguide that will convey the mechanical energy to a point where it is used and this is the main energy loss mechanism – the load. The waveguide is commonly a resonator and tuned to the same frequency as the Langevin  transducer.

Transducer reliability
A manufacturer of power ultrasound equipment had a problem with the reliability of its popular range of transducers used for plastic welding. These are known as Langevin type transducers and they are the equivalent of lasers in the field of ultrasound. In a Langevin transducer a mechanical resonator is pumped with energy by two piezoelectric discs forming part of the resonator. A Langevin resonator is more efficient than a laser because it can be pumped synchronously at its operating frequency giving high electro-mechanical conversion efficiency, of typically 90%. By contrast Nd:YAG lasers with equivalent powers (1 kW) are only about 5% efficient requiring water cooling. With a Langevin transducer water-cooling is not generally needed but some air cooling is helpful, which makes electrical isolation simpler to achieve.
However, if the Langevin transducer is not well made then more than 5% of the energy becomes heat and if the heat generated exceeds the capacity of the cooling system to remove it then thermal runaway starts and the transducer is damaged. The client was suffering too many overheating failures. Poor assembly practice by a subcontractor was under suspicion and Cambridge Ultrasonics was asked to investigate. We devised a manufacturing process, using best practise, with vector impedance measurement of the piezoelectric components before and after assembly and clean assembly conditions. We found that about 5% of the client’s piezoelectric components (actually ferroelectric) had negligible piezoelectric properties and 10% were in a group that indicated poor piezoelectric properties; the remaining 85% were good quality. We assembled  using Langevin transducers using only good quality piezoelectric components with vacuum processing of adhesives and gave them to the client to test. The client’s tests showed that final quality was much improved.

Related reading:High Power Ultrasonic Generator Ultrasonic cutting machine

The advantage of ultrasonic cutting

Although the vibrations of the ultrasonic blades reduce adhesions, it is necessary to clean the blade frequently to avoid persistent residues that cause a change in the frequency of vibration and damage the blade. It can also break if it touches metallic parts of the machine or forgotten tools. Nevertheless, it is a reliable technology, present in the bakery since many years ago and without a high incidence of broken blades.

The ultrasound cutting tool is highly effective on acrylic, polyester, Soltis, and Screen (PVC coated fiber glass) and guarantees an excellent cutting quality. The great advantage of the ultrasonic cutting tool is that the fabric is not only cut, but the heat generated by the ultrasound vibrations also sears the edges, thus preventing the fabric from fraying.

Since the tool exerts great thrust on the material, it is only used for straight cuts in X and Y direction (along the axes of the machine). On the plotters, the ultrasound cutting tool is most efficient in combination with the additional combined pressing bars for open (or “breathing”) fabrics, which secure the fabric to the table top during the cutting cycle.

Ultrasonic scalpel

1.A host can work in a variety of frequencies, along the different USES of ultrasound treatment head, with ultrasonic, ultrasonic cutting and ultrasonic degreasing and other functions. The device is suitable for use in general surgery, neurosurgery and orthopedic surgery, simple operation, safe and reliable.

2. the product features:
A variety of functions, a host can work in a variety of frequencies, along the different USES of ultrasound treatment head, with ultrasonic, ultrasonic cutting and ultrasonic degreasing and other functions.
Low initiative under computer control. In the 19th – 35 KHZ within the working frequency of automatic frequency stabilized, operation is extremely bunds. Low with straight and 20 ° C Angle of holding two treatment head, microsurgery vision.
Low ultrasonic wash attract hand-held treatment head/draw line adopts coaxial structure. Equipped with special pressure suction pressure can be adjusted flexibly on the handle.
Low hand-held treatment head combination, easy cleaning, maintenance and disinfection.
The machine has compact design, shape their view and practical. Light weight, easy to carry. Three, the main parameters: the electricity source, AC 220 v + 10% to 50 hz + 2% power consumption: 260 w heavy quantity: 6 kg using the environment temperature: 10 ° C – 30 ° C wet degree: 80% or less atmospheric pressure: 86-106 kpa working frequency: 19-35 KHZ continuous adjustable plus or minus 5% output power: 0-100 w adjustable amplitude of the cutting tools: 290-310 PM timing range: 0-60 min plus or minus 5%

Altrasonic Equipment (Shanghai) Co., Ltd produces ultrasonic welding,ultrasonic plastic welding etc. Order today for fast shipping,wholesale pricing and superior service.

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Sticky food ultrasonic non-stick cutting technology

Ultrasonic cutting machine basic composition is ultrasonic transducer, the booster, Cutting knife

Ultrasonic power supply.
Ultrasonic power supply converts mains into high frequency high voltage alternating current, Loss to the ultrasonic transducer. Ultrasonic transducer is equivalent to an energy conversion device, It can be the input electrical energy into mechanical energy,
The ultrasound. The form is transducer in Vertical scaling back and forth movement. Contractions in the frequency of the equivalent of driving power supply for the high frequency.

Current frequency.
The role of the Booster is fixed the ultrasonic vibration system,
The second is to change, To implement the output amplitude amplification. Cutting knife (tools) on the one hand, to further enlarge the amplitude, get together

The focal ultrasound on the other hand is the output ultrasonic, like blade of cutting knife, The ultrasonic Wave energy concentrated cutting parts of the input material to be cut. The parts in the ultrasonic energy Moment under the action of softening and melting, strength drops greatly. At this point, as long as small The cutting force, can achieve the goal of cutting materials.

Ultrasonic knife cutting block machine features:
1, incision smooth and firm
2, trimming, accurate, not out of shape
3, fabric does not become warped edge, burr, spins, buckling, can automatic sealing side
4, food cutting speed, non-stick knife, etc

Related reading:Ultrasonic Welding Transducer High Power Welder Transducers

The advantage of the ultrasonic sealing

Introduction

Putting materials between the Mold and ultrasonic “horn”, because of the stress and vibration of mechanical pressure caused the material between the molecules, releasing heat to make contact material softening, glue.
It is fast, clean, and effective assembly process, thermoplastic accessories used to assembly processing, the synthesis methods of artifacts and some.Bonding between currently used in plastic products, plastic products and metal parts of adhesive and other bonding between the plastic material.
It replaces solvent viscose, fixed and other mechanical bonding process, is an advanced assembly technology. Ultrasonic sealing not only has a connection assembly function and has moisture-proof, waterproof effect.

Advantages
1, energy saving
2, no equipment smoke ventilation cooling
3, low cost and high efficiency
4, easy to realize automation production
The working principle of welding machine
Ultrasonic welding is through the function of a transistor devices convert 50/60 hz frequency electric current to 20 KHZ or 40 KHZ high frequency electric energy of power, supply converter.Converter converts electrical energy into can used in ultrasonic mechanical vibration, the pressure regulating device for transmission after transformation between mechanical energy and the ultrasonic welding machine welding head.Welding head is the mechanical vibration can directly transfer to an acoustic device to be pressing products. Vibration generated by vibration friction welding work pieces to the bonding surface heat melt plastic, vibrations in the molten state matter stops when it reaches its interface, the transient pressure maintenance can make the melt adhesive surface curing generated when a strong molecular bonds, the cycle is usually less than one second is complete, but the welding strength is close to a row of materials.
Welding:
Refers to the generalized two thermoplastic products welding process.When the supersound stop vibration,
Solid material melt, complete welding.The joint strength is close to a block of raw materials,
As long as the product of joint surface designed to match,
It is absolutely no problem completely sealed,
Disc:
Melting mechanical lock forming a material process of different plastic bolt.
Embedded:
Embedded in a metal parts plastic products will be reserved hole.
Has high strength, short forming period the advantages of quick installation, similar to insert in the mold design.
Bending/generated
Sonic to melt to form a part of accessories plastic protuberant part or plastic pipe or other accessories.This approach has the advantage of fast processing, smaller inner pressure, good appearance and overcome of material nature.
Spot welding
Spot welding is not reserved or energy control of two local welding of thermoplastic components.Spot welding can also produce a strong adhesive structure, especially for some large parts, have raised plastic or pouring thermoplastics and the structure complicated, difficult to enter the joint products below.
Cut
Cutting and sealing some order and disorder of ultrasound technology of thermoplastic materials.In this way, the edge of the seal is not crack, and no burrs, edge phenomenon.
Textile/film sealed textile springtime delights and some film seal can also be used to ultrasound.It can press the film for close, but also on textiles orderly local shear and seal.Stitch at the same time also played a decorative role.

 

Related Reading:High Power Welder Transducers      100w Ultrasonic Power

Impedance Analyzer

Impedance Analyzer / Horn analyzer is mainly used for piezoelectricity element impedance analysis and parameter calculation. Before using piezoelectricity element, you need to know its major parameters: resonance frequency Fs, antiresonance frequency Fa, half point power F1 and F2, the max. admittance Gmax, direct capacitance C0, dynamic resistance (R1, C1, L1), free capacitance CT, free dielectric constant 33T,mechanical quality factor Qm, electromechanical coupling factor Keff, plane electromechanical coupling factor Kp and so on.

Specification:

Impedance Analyzer  HS70A (Improved)
Frequency Range 1KHz~500KHz
Basic Accuracy < 1%
 Scan Speed 10 seconds for each piece (equivalent to 600 scan dots)
Frequency Accuracy ±15 ppm
Phase Accuracy 0.15 degree
Temperature Range 10~40 degree Celsius
Impedance Range 0.1Ω~1MΩ
Frequency Step 0.1Hz to Any
Measure Items Resonance Frequency: Fs
Half Power Frequency: F1 and F2
Maximum real admittance at Fs: Gmax
Dynamic Resistance: R1
Anti resonance frequency: Fp
Mechanical quality factor: Qm
Free capacitance: CT
Dynamic inductance: L1
Dynamic capacitance: C1
Static capacitance: Co
electromechanical coupling coefficient: Keff and Kp
Maximum real impedance at Fp: Zmax
Measure Diagram G,B-F
G-B (admittance circle coordinate)
R,X-F
R-X (impedance circle coordinate)
Z,phase-F
Y,phase-F
Z(Logarithm),phase-F
Amplification piezoelectric ceramic, ultrasonic transducer, power ultrasonic,ultrasonic weld, ultrasonic clean, ultrasonic sensor
HS70A (Improved) Impedance Analyzer(1KHz~500KHz)Including:
Clip lead, Mains lead (220V/110V, 50/60 Hz), RS232 Lead, USB2. 0 to RS232 cable,
Ceramic-specific clipper, PiezoView PC Software(English), User Manual(English), Calibration Certificate

Functions:
This instrument can measure admittance characteristic curve of piezoelectricity element (the admittance is equal to reciprocal of impedance) and analyze and extractthe above needed parameters. With this instrument, you can gain four characteristic curves of piezoelectricity element (admittance characteristic graph, impedancecharacteristic graph, admittance coordinate graph, impedance coordinate graph).
Moreover, it is easy to save and print the measured result.

This instrument combines the hardware and PC software for impedance analysis. The hardware system finishes impedance measure, and the PC software finishes impedance analysis and parameter extraction power.

This instrument is used for guiding piezoelectricity element’s testing and using.It is a synthetic solution of piezoelectricity element’s measurement and analysis.Moreover, it can evaluate and test parameters of the piezoelectricity element.

Applications:
Impedance analyzer is widely applied in ultrasonic industries,including ultrasonic plastic welder, ultrasonic cleaner, ultrasonic transducer,ultrasonic electro machining, underwater acoustic transducer, ultrasonic sensor, piezoelectric ceramic, parking sensor, medical ultrasonic device, ultrasonic scaling device, ultrasonic horn, ultrasonic welding head, ultrasonic grinder, and ultrasonic emulsor.

Impedance analyzer is adopted to help the company make much profit, for more info visit www.altrasonic.com.

Related reading:ultrasonic transducer ultrasonic plastic welding

 

What’s the conditions and requirements of Ultrasonic Welding?

Ultrasonic Welding conditions:
As a condition of Ultrasonic Welding, the most important thing is the welding energy (on vibration) welding time and pressure, of course, other conditions also is very important.
Welding temperature
Viscous flow temperature of ultrasonic welding materials.Material will not melt.Related to the amplitude, the higher the amplitude, the higher temperature rise.
Add pressure
Using the work of cylindrical stare to pressure FRP products.Generally 0.1 0.3 MPa compressed air pressure (pressure gauge), sometimes higher.But if using high pressure, will hinder the vibration of the cylinder.
Welding time
Owing to the different materials of all kinds of with the form of products, some of the moulded part welding time’s enough just 0.2 seconds.Time is too long can cause excessive welding and produce a large number of flash and bubble, which can lead to bad airtight, must pay attention to.
Cooling (keep) time
For crystalline plastics, if the temperature below the melting point, the connection part can be solidified, often pressure are kept between 0.1 to 0.2 seconds.
Ultrasonic Welding machine requirements:
Welding in the horn from bottom to top in three parts: Horn, booster and transducer (ultrasonic transducer).According to certain proportion of amplification.If the amplitude of transducer is 6 mm, the booster can be amplified three times to 18 mm, to the amplitude of the horn can be increased to 36 mm.Amplitude increase, of course, the life of the horn is reduced.By different welding materials, the amplitude is not the same.
horn materials are generally three types:
Titanium: expensive, best performance, good toughness and processing difficulties.Small friction loss and the amplitude can reach 60 mm;
Aluminum alloy: cheap, quick wear, amplitude cannot exceed 30 mm, easy processing;
Steel: very hard, most unfit for horn, amplitude of no more than 25 mm, suitable for cutting, need to increase the blowpipe, easy to cooling.
Therefore, ultrasonic welding scope of application: car door plank of door plank, automobile sound insulation blanket, non-woven inner decoration spot welding, car dashboard, car dashboard, automotive plastic parts riveting, bumper, auto tire cover, car roof, car trunk non-woven fabric, car seat cushion non-woven, automobile engine cover, car tail lights, automotive lamps, auto bearing cage, glove box, auto filter, automotive plastic valves, air commutator, auto gas detector, etc.In automotive plastic accessories welding use non-standard ultrasonic welding equipment, more long more location design, with a photo program control with LCD screen operation, big car complex work piece welding, welding of different direction, need to welding multiple locations at the same time.
Find the best ultrasonic devices and components based on the competitive price.Click at www.altrasonic.com.

Relaated Reading:
ultrasonic plastic welding   Ultrasonic Welding Transducer

Ultrasonic welding principle

With the rapid development of material industry, The light weight, small friction, corrosion resistance, easy processing of plastic and metal composite material application more and more get people’s attention.All kinds of plastic products not only penetrated into every field of People’s Daily lives, at the same time can be widely used in aerospace, shipbuilding, automobiles, electrical appliances, toys, electronics, textile and other industries.

Principle of ultrasonic plastic welding is 20 KHZ (or 15 KHZ) generated by the generator of high voltage, high frequency signal, can by changing the system, the signal is converted to high-frequency mechanical vibration, and on the plastic workpiece, through the workpiece surface and the friction between the molecular and make the transfer to the interface temperature, when the temperature reaches the melting point of the workpiece itself, the workpiece interface rapidly melting, and then fill in the space between the interface, when the shaking stops, workpiece cooling under certain pressure setting at the same time, to achieve perfect welding.

Ultrasonic plastic welding machine is a kind of universal welding injection of the workpiece, as well as plastic, paper and aluminum composite membrane, such as plastic hose seals the tail.According to different processing object and welding, welding, welding and other processing methods.

15 KHZ ultrasonic plastic welding machine(http://www.altrasonic.com/1000W-Ultrasonic-Generator-For-Plastic-Welding-Machine_p120.html), new type of welding with a softer PE, PP material, and large diameter, the length of the long plastic welding parts, has a unique effect, can meet the needs of a variety of products, production efficiency and product class contribution for users.

Ultrasonic machining process

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1、ultrasonic welding:
With ultrasonic high frequency vibration welding head under moderate pressure, make the combination of the two pieces of plastic surface produces friction heat and melting joint moment, weld strength can be comparable to ontology, adopt the appropriate artifacts and reasonable interface design, can achieve watertight and airtight, and avoid using supplements such inconvenience, efficient clean welding.

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2、Rivet welding
The ultrasonic high frequency vibration welding head, pressure plastic prominent clumps, make its instant hot melt rivet shape, make the material of different materials mechanical riveting together.

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3、Inlay
By the conduction of welding head and appropriate pressure, moment to metal parts (such as nuts, screws, etc.) into reserved plastic hole, fixed to a certain depth, after the completion of both tension and torsion were comparable with traditional die forming of strength, can be exempted from damaged injection mold and injection of the shortcomings of slow.

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4、Forming:
This method and the welding method, the concave shape of the welding head pressure in the plastic outer ring, after sending the high-frequency vibration of ultrasonic welding head to plastic forming and covered in molten metal objects to be fixed, and is smooth and beautiful appearance, this method is used in the electronics, the horn of a fixed shape, and cosmetics of lens fixed, etc.

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5、Spot welding
A, two pieces of plastic equinoctial welding without welding line design in advance, to achieve fusion.
B, contrast to larger workpiece and is not easy to design point of welding welding line of the workpiece, and reach the effect of welding, spot welding points at the same time.

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6、Cutting & Sealing
By using the principle of the ultrasonic instantly send vibration, the chemical fiber fabric cutting, the incision bright and clean and no crack, no drawing.

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