JP2009248213A - Method and device for cutting viscous substance - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a method and a device for cutting a viscous substance capable of cutting even a viscous substance having high viscosity and high adhesive force into a predetermined size. <P>SOLUTION: The device for cutting the viscous substance comprises: a band-like metal blade 3 cutting the viscous substance; a biasing force applying mechanism applying biasing force to the metal blade 3; a discharge port 11 disposed so as to cross a rotational trajectory of the metal blade 3 and discharging the viscous substance; and an abutment plate 9 provided adjacent to the discharge port 11. When the metal blade 3 is rotated and abutted on the abutment plate 9, the metal blade 3 is pressed in the inner direction of the rotation radius, causing biasing force to be applied to the metal blade 3 by the biasing force applying mechanism. When the metal blade 3 is away from the abutting plate 9, the biasing force applied to the metal blade 3 is released, allowing the viscous substance to be shaken off from the metal blade 3. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a viscous material cutting method and apparatus for continuously cutting a viscous material that is pumped by a pump or the like and pushed out from a discharge port.

  Viscous substances (moist before hardening, clay, sludge, etc. that contain a lot of moisture and easily adhere to a smooth surface such as metal or plastic). Fine and constant size (several mm to 5 cm) (The term "cutting" here refers to the action of separating objects, and is a comprehensive expression that includes tearing and tearing.) The shape of the blade is smooth on the cut surface. For example, a viscous material to be cut is pushed into a small-diameter hole with a screw or a pump, and the object discharged from the hole is cut with a rotary blade or the like. A method of granulating by adding or adding a chemical or a drug is common.

As a method of cutting with a rotary blade, for example, Patent Document 1 exemplifies a cutting device that uses a piano wire or a rotating metal blade to extrude a molded product from a die of an extrusion molding machine.
And in patent document 1, it is shown that a fluororesin etc., a well-polished metal, etc. are used as a means for preventing an extrusion molding from adhering a piano wire to a rotating metal blade.

(See Patent Document 1).
Japanese Patent Laid-Open No. 11-216714 (see [0012] and [0018] of Patent Document 1)

  Since the object to be cut is a viscous substance, the cut viscous substance adheres to the rotary blade and may not be easily separated by gravity or the centrifugal force of the blade. As a result, the next cut is performed with the cut viscous substance sticking to the rotary blade, and the first cut and the later cut are combined, and the desired fine particles cannot be obtained.

  In this regard, as shown in Patent Document 1, it is conceivable to use a fluororesin or a well-polished metal as a means for preventing the viscous material from adhering to the rotating metal blade, In the case of, for example, sludge such as a viscous material having a high moisture content of 70 to 90%, such means cannot reliably prevent the adhesive material from adhering to the rotary blade.

In fact, the inventor made a trial and error about cutting sludge as a viscous material into a predetermined length. When the moisture content is 70 to 90%, such as sludge, when the wire is rotated and cut, for example, the sludge does not come off while adhering to the wire, and the sludge that is cut multiple times sticks like a worm. I have. Moreover, sludge was discharged from the discharge port, cut with a metal blade, and an attempt was made to strip off the sludge adhered to the metal blade with a scraper. In this case, the sludge adhered to the scraper and did not leave.
As described above, a method for continuously cutting a viscous substance having a high water content such as sludge into a predetermined size has not been known.
On the other hand, as described above, there is a method of adding an additive or the like separately, but in that case, the apparatus becomes complicated.

  The present invention has been made to solve such a problem, and even a viscous material having a high viscosity and a strong adhesive force can be continuously cut into a predetermined size by preventing adhesion to the cutting blade. An object of the present invention is to obtain a cutting method and apparatus.

(1) A method for cutting a viscous material according to the present invention includes a step of discharging a viscous material from a discharge port, a step of cutting a viscous material discharged from the discharge port with a cutting blade, and a biasing force applied to the cutting blade. A step of applying, and a step of shaking off the viscous material adhering to the cutting blade by releasing the urging force.

(2) Further, the viscous material cutting device according to the present invention includes a discharge port for discharging the viscous material, a cutting blade for cutting the discharged viscous material, and a biasing force applying mechanism for applying a biasing force to the cutting blade. And an urging force releasing mechanism for releasing the urging force applied to the cutting blade by the urging force applying mechanism after cutting.

(3) Further, the viscous material cutting device according to the present invention includes a line or strip-shaped rotary blade for cutting the viscous material, an urging means for applying an urging force to the rotary blade, and a rotational trajectory of the rotary blade. A discharge port that is arranged so as to intersect and protrude the viscous substance, and a contact plate provided in the vicinity of the discharge port, and the rotary blade rotates to contact the contact plate and A biasing force is applied to the rotary blade by the biasing means when the rotary blade is pressed inward in the rotational diameter, and the biasing force applied to the rotary blade when the rotary blade comes off the contact plate. The viscous material adhering to the rotary blade is shaken off when the is opened.

  In the present invention, the viscous material discharged from the discharge port is cut by the cutting blade, and a biasing force is applied to the cutting blade. By releasing this biasing force, the cutting blade is vibrated to adhere to the cutting blade. Therefore, even a viscous substance having a high viscosity and a strong adhesive force can be continuously cut to a predetermined size by preventing it from adhering to the cutting blade.

[Embodiment 1]
FIG. 1 is an explanatory diagram of a viscous material cutting device according to an embodiment of the present invention, which is created by the inventor as a prototype device. FIG. 2 is an enlarged view showing a part of FIG.
As shown in FIGS. 1 and 2, the viscous material cutting device 1 according to the present embodiment includes a plurality of strip-shaped metal blades 3 and a rotating blade device 7 that is rotated by a motor 5 at a predetermined rotational speed. A contact plate 9 that contacts the rotating metal blade 3 and is arranged so as to intersect the rotation trajectory of the metal blade 3, and a discharge port 11 that is formed in the contact plate 9 and discharges a viscous substance.
Hereinafter, each configuration will be described in more detail.

<Rotating blade device>
As shown in FIG. 3, the rotary blade device 7 includes a rotary shaft 12, a pair of disks 13 that are installed on the rotary shaft 12 at a predetermined interval, and a pair of disks 13 that are installed at predetermined angles. And a strip-shaped metal blade 3 installed to do so.
As shown in FIG. 4 which is an enlarged view of the circled portion A in FIG. 3, a concave portion 15 is formed on the peripheral surface portion of the disk 13, and the metal blade 3 is disposed in the concave portion 15 via a gap. Has been. Since the metal blade 3 is formed of an elastic body, when the metal blade 3 is pressed in the radial inner direction of the disk 13, the metal blade 3 bends by the gap and is given an urging force.
The rotating shaft 12 is connected to the motor 5 by a power transmission mechanism (not shown) so that the rotating shaft 12 can rotate at a predetermined rotational speed, for example, 15 to 60 rpm.

<Discharge port>
The discharge port 11 is provided at the tip of a pipe 17 (see FIG. 1) that pumps viscous material with a pump or the like, and is disposed on the rotation track of the metal blade 3 to discharge viscous material. In this example, the discharge port 11 is provided at the center of the contact plate 9 as shown in FIG. In addition, the diameter of the hole of the discharge outlet 11 is 20 mm, for example.

<Contact plate>
The abutting plate 9 is disposed so as to intersect the rotation trajectory of the metal blade 3, and abuts against the rotating metal blade 3 to press the metal blade 3 in the rotational radial inward direction, thereby applying a biasing force to the metal blade 3. It is given.

5 and 6 are explanatory diagrams for explaining the operation of the present embodiment. Hereinafter, the operation of the viscous material cutting device 1 of the present embodiment configured as described above will be described.
FIG. 5 shows an arrangement relationship between the discharge device 20 having the discharge port 11 for discharging the viscous substance 19 and the rotary blade device 7 having the metal blade 3. As shown in FIG. 5, the rotation of the metal blade 3 is shown. A contact plate 9 is installed so as to intersect the track.

FIG. 6 shows a state in which the viscous material 19 discharged from the discharge port 11 is cut by the metal blade 3. Hereinafter, the mechanism of cutting the viscous material will be described with reference to FIG.
As shown in FIG. 6, the metal blade 3 rotates and contacts the contact plate 9 while the viscous material 19 is being discharged from the discharge port 11. At this time, as shown in FIG. 7, the metal blade 3 is pressed by the contact plate 9, the base end portion thereof is bent, and since the metal blade 3 is an elastic body, an urging force is applied. In this state, the metal blade 3 moves downward so as to slide on the surface of the contact plate 9 and cuts the viscous material 19 discharged from the discharge port 11.

  The cut viscous substance 19 adheres to the back surface side (the surface side opposite to the discharge port 11) of the metal blade 3. When the metal blade 3 to which the viscous material 19 is attached passes through the surface of the abutting plate 9, the urging force of the metal blade 3 is released, and the metal blade 3 repels outwardly. At this time, the viscous material 19 tends to stick to the metal blade 3 by the adhesive force and move outward, but since the speed at which the metal blade 3 can be flipped outward is high, the viscous material is peeled off from the metal blade 3 and falls by its own weight. .

  As described above, according to the present embodiment, the viscous material 19 once adheres to the metal blade 3, but is reliably peeled off from the metal blade 3 when it passes through the contact plate 9.

  In the above-described embodiment, the example in which the base portion of the metal blade 3 is made elastic as the means for applying the urging force to the metal blade 3 is shown, but the present invention is not limited to this. For example, even if the metal blade 3 itself does not have elasticity, the urging force may be applied by a spring by supporting the metal blade 3 with a spring, for example.

It is explanatory drawing of the cutting device of the viscous substance which concerns on one embodiment of this invention. It is an enlarged view which expands and shows a part of FIG. It is explanatory drawing of the rotary blade apparatus which concerns on one embodiment of this invention. It is an enlarged view which expands and shows a part of FIG. It is explanatory drawing explaining operation | movement of one embodiment of this invention. It is explanatory drawing explaining operation | movement of one embodiment of this invention. It is explanatory drawing explaining operation | movement of one embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Cutting device 3 Metal blade 5 Motor 7 Rotary blade device 9 Contact plate 11 Discharge port 12 Rotating shaft 13 Disc 15 Recessed portion 17 Tube 19 Viscous substance

Claims (3)

A step of discharging the viscous substance from the discharge port, a step of cutting the viscous material discharged from the discharge port with a cutting blade, a step of applying a biasing force to the cutting blade, and releasing the biasing force And a step of shaking off the viscous material adhering to the cutting blade. A discharge port for discharging a viscous substance, a cutting blade for cutting the discharged viscous material, a biasing force applying mechanism for applying a biasing force to the cutting blade, and a biasing force applied to the cutting blade by the biasing force applying mechanism And a biasing force release mechanism for releasing the material after cutting. A line or belt-shaped rotary blade for cutting the viscous material, an urging means for applying an urging force to the rotary blade, a discharge port that is arranged so as to intersect the rotational trajectory of the rotary blade, and projects the viscous material, An abutting plate provided in the vicinity of the discharge port, and the urging force is obtained when the rotating blade rotates and abuts against the abutting plate and is pressed inward in the radial direction of rotation. A biasing force is applied to the rotary blade by the means, and when the rotary blade is detached from the contact plate, the biasing force applied to the rotary blade is released to shake off the viscous substance attached to the rotary blade. A viscous material cutting device characterized in that it is configured as described above.

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