JPH0650791U - Ultrasonic slicer - Google Patents

Abstract

(57) [Summary] [Purpose] To provide an ultrasonic slicer capable of suppressing abnormal noise generation in the mounting portion of the circular blade on the horn and exhibiting stable cutting performance. [Structure] A reinforcing ring 1c is provided at a connecting portion of the circular blade 1 with the horn 2 to obtain the above effect.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an ultrasonic slicer, and more particularly to an ultrasonic slicer suitable for cutting breads, Western confectionery, Japanese confectionery and the like.

[0002]

[Prior art]

 Conventionally, this type of ultrasonic slicer has been used to press a sand witch or cake against a circular blade that rotates while vibrating ultrasonically to slice it. By ultrasonically oscillating in the direction, smooth cutting and chip scattering are attempted.

FIG. 6 shows a mounting structure of a circular blade of a conventional ultrasonic slicer, in which a circular blade 22 is fastened to a horn 21 of an ultrasonic vibrating means by a hexagon socket head bolt 23.

As can be seen from the front view of FIG. 7 and the plan view of FIG. 8, the circular blade 22 has a blade 22a on the entire circumference and a mounting hole 22b at the center, and is, for example, SKS (alloy tool steel). ) Material.

[0005]

[Problems to be solved by the device]

 In the above-mentioned conventional ultrasonic slicer, when a jam, a cream or the like adheres to the circular blade 22 when cutting bread or the like, the attachment position is random with respect to the circular blade 22. The vibration mode of 22 changes from a concentric ideal mode to a quadrangular mode as shown by a chain double-dashed line in FIG. Therefore, the stress at the joint of the circular blade 22 with the hexagon socket head cap screw 23 against the horn 21 becomes large, and the circular blade 22 vibrates while flexing in the joint. Since such flexural vibration is generated in the gap between the hexagon socket head cap screw 23 and the horn 21, it has a drawback that an abnormal sound is generated. Further, if this flexural vibration is repeated, there is a concern that the tightening force of the circular blade 22 by the hexagon socket head cap bolt 23 will decrease.

The present invention has been made in view of the above points, and an object thereof is to provide an ultrasonic slicer that suppresses the occurrence of abnormal noise in the mounting portion of a circular blade and obtains stable cutting performance. is doing.

[0007]

[Means for Solving the Problems]

 The ultrasonic slicer according to the present invention comprises a circular blade body having blades formed all around, a rotary drive source for rotating the circular blade body, and ultrasonic vibrating means for vibrating the circular blade body at its rotation center. The ultrasonic vibrating means includes a vibrator and a horn that mechanically amplifies the vibration generated by the vibrator, and the circular blade body has a reinforcing ring integrally formed at the center of rotation. The reinforcing ring and the horn are configured to be coupled by a fastening means.

[0008]

【Example】

 Next, an ultrasonic slicer as an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

In FIG. 1, a circular blade 1 is replaceably fastened (brazing or the like) to a tip of a horn 2 by a screw 3 at a center of rotation thereof. The direction of vibration of ultrasonic vibration by the horn 2 is indicated by an arrow U. The diameter of the circular blade 1 is determined by the resonance length of the bending vibration in the radial direction based on the vibration transmitted from the horn 2, and the bending vibration shown by the bending curve A in FIG. 1 is performed.

Incidentally, the circular blade body 1 of the present embodiment is formed on both blades, for example, has a diameter of 210 mm, a thickness of about 1.5 mm, and a taper width of the cutting edge of about 15 mm, and SKS2 is used as a material. The horn 2 is vibrated at about 19.5 kHz, and the tip thereof is vibrated with an amplitude of about 10 μmp-p. As a result, the nodes of vibration of the circular blade 1 appear at intervals of about 13 mm, and the blade edges of the tapered double blades become thinner, so they appear at intervals of about 7 mm. The diameter and the resonance frequency of the circular blade 1 can be appropriately set so as to obtain the optimum vibration amplitude according to the sliced object or the like.

On the other hand, the horn 2 is coupled to the vibrator 4 on the surface opposite to the coupling surface for the circular blade 1. The oscillator 4 is excited by an oscillator 9 to generate ultrasonic vibration. The horn 2 mechanically amplifies the vibration generated by the vibrator 4.

The inner rotating case 8a containing the vibrator 4 is rotatably supported by the case 8 via a bearing 8b, and is connected to the motor 7 via a transmission unit 6. 7 is driven by a power source (not shown) to rotate the inner rotating case 8a. Between the vibrator 4 and the conductive portion 6, the brushes 5a and 5b are in sliding contact with the ring-shaped electrodes 5c and 5d connected to the electrode 4a of the vibrator 4. Excitation power from the oscillator 9 is constantly supplied to the brushes 5a and 5b and transmitted to the vibrator 4. Since the inner rotating case 8a and the horn 2 are joined together via the flange portion 2b and the packing 2c, the horn 2 and the circular blade 1 are rotated by the rotation of the inner rotating case 8a.

Next, a connecting structure of the circular blade 1 and the horn 2 will be described with reference to FIGS. 2 to 5.

First, as apparent from FIGS. 4 and 5, the circular blade body 1 has a blade 1a extending over the entire circumference and a mounting hole 1b at the center, and further surrounds the periphery of the mounting hole 1b. An auxiliary coring ring 1c is integrally provided on the horn mounting side.

The auxiliary ring 1c is made of stainless steel or the like as its material, has an outer diameter of 18 mm, an inner diameter of 13 mm, and a thickness of 3 mm, for example, and is integrated with the circular blade 1 by means such as bonding, brazing, and welding. .

The circular blade body 1 with the auxiliary ring is fastened to the horn 2 with a screw 3 as shown in FIG. 2 with the auxiliary ring 1c on the horn 2 side.

A bolt with a hexagonal hole (3a) is used as the screw 3, and a fastening hole is formed by the bolt hole formed in the horn 2.

Next, the operation of the ultrasonic slicer configured as described above will be described.

First, when the inner rotating case 8a is rotated by the motor 7 in the state where the horn 2 shown in FIG. 1 is excited in the vibration direction 2a, the horn 2 and the vibrator 4 rotate, and the circular blade 1 vibrates flexibly. While rotating. Due to this rotational vibration, the belly of a constant wave is formed concentrically in several places on the circular blade 1 and vibrates, and sandwiches, cakes, Japanese sweets, etc. are pressed against the circular blade 1 and cut, and at the same time, a circular shape is formed. The blade body 1 vibrates in the direction separating the cut surfaces to sharpen the sharpness and suppress the generation of chips.

At this time, due to jams, creams, etc. attached to the circular blade 1, an abnormal mode in which the antinode of the vibration mode is not the same circular center occurs in the circular blade 1, and a large portion is formed at the connecting portion with the horn 2. Although stress may occur, this portion does not cause the conventional flexural vibration because it is reinforced by the auxiliary ring 1c with increased thickness and rigidity. As a result, generation of abnormal sound and reduction in sharpness are also suppressed.

In the above embodiment, the circular blade body 1 and the reinforcing ring 1c are separately provided in advance and integrated by bonding or the like. However, when the circular blade body 1 is molded, the circular blade body 1 and the reinforcing ring 1c are integrally formed by the same member. Good.

Further, in the above embodiment, the reinforcing ring 1c of the circular blade 1 is provided on the mounting side with respect to the horn 2, but it is formed on the opposite side so as to contact the head of the screw 3. Good.

[0023]

[Effect of device]

 As described above, according to the present invention, the circular blade body is reinforced at the joint portion with the horn by the reinforcing ring, so that the circular blade body does not bend and vibrate at the joint portion, and abnormal noise is generated. It has the effect of being able to suppress and obtain a stable cleavage action.

[Brief description of drawings]

FIG. 1 is a plan view including a partial cross section of an ultrasonic slicer as an embodiment of the present invention.

FIG. 2 is a plan view of a main part of the ultrasonic slicer shown in FIG.

FIG. 3 is a view taken along the line BB of FIG.

FIG. 4 is a front view of a circular blade provided in the ultrasonic slicer shown in FIG.

FIG. 5 is a front view of the circular blade body shown in FIG.

FIG. 6 is a plan view showing a connecting portion of circular blades in a conventional ultrasonic slicer.

FIG. 7 is a front view of a circular blade provided in a conventional ultrasonic slicer.

FIG. 8 is a plan view of the circular blade body shown in FIG. 7.

[Explanation of sign]

 1 Circular blade 1c Reinforcement ring 2 Horn 3 Screw 4 Transducer

Claims (1)

[Scope of utility model registration request] 1. A circular blade body having blades formed all around, a rotary drive source for rotating the circular blade body, and ultrasonic vibrating means for vibrating the circular blade body about its rotation center. The ultrasonic vibrating means includes a vibrator and a horn that mechanically amplifies the vibration generated by the vibrator, and the circular blade body has a reinforcing ring integrally formed at the center of rotation. An ultrasonic slicer in which a ring and the horn are connected by a fastening means.