JP2013063413A - Processing apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a processing apparatus capable of scraping an object to be processed adhering to an inner surface of a container, while preventing a scraper from receiving an excessive load caused by the interference with the object with a simple configuration, and to provide the scraper mounted on the processing apparatus.SOLUTION: A mixing device 1 for mixing materials is provided with: a stirring blade 5 for stirring the materials stored in a tank 4; and a scraper 21 for scraping the materials adhering to an inner surface 34 of the tank 4 when moved by the force developed by the movement of the materials stirred by the stirring blade 5.

Description

  The present invention relates to a processing apparatus for processing an object to be processed and a scraper attached to the processing apparatus.

  2. Description of the Related Art Conventionally, a processing apparatus that stirs and mixes an object to be processed such as a granular material is known.

  For example, a cylindrical mixing tank, a main stirring blade that is rotatably provided with a slight gap on the inner surface of the mixing tank, and a rear portion of the main stirring blade that contacts the inner surface of the mixing tank via an elastic spring. A mixer having an auxiliary stirring blade provided in a contact state has been proposed (for example, see Patent Document 1 below).

  In this mixer, by providing a gap between the main stirring blade and the inner surface of the mixing tank, generation of wear powder due to contact between the mixing tank and the main stirring blade is prevented. Further, the auxiliary stirring blade is elastically brought into contact with the inner surface of the mixing tank to prevent the mixed raw material from adhering to and remaining on the inner surface of the mixing tank.

Japanese Utility Model Publication No. 1-161630

  However, in the mixer described in Patent Document 1, the main stirring blade and the auxiliary stirring blade are both attached to the rotation drive unit. Thereby, the auxiliary stirring blade is rotated together with the main stirring blade.

  Therefore, a load for rotating the auxiliary stirring blade in addition to the main stirring blade is applied to the rotation driving unit. Further, the auxiliary stirring blade is subjected to a load equivalent to that of the main stirring blade due to interference with the mixed raw material.

  Therefore, an object of the present invention is to have a simple configuration, and to scrape off the object to be processed adhered to the inner surface of the container while suppressing an excessive load caused by interference with the object to be processed on the scraper. An object of the present invention is to provide a processing apparatus and a scraper attached to the processing apparatus.

  In order to achieve the above-described object, the invention according to claim 1 is a processing apparatus, wherein a container for storing an object to be processed, a processing means for processing while moving the object to be processed in the container, It is provided with a scraper that is provided in the container and is moved by the force generated by the movement of the object to be processed being processed by the processing means, and scrapes off the object to be processed adhered to the inner surface of the container.

  According to such a configuration, the scraper can be moved using the force generated by the movement of the object being processed by the processing means.

  Therefore, it is not necessary to provide a driving force for moving the scraper, and the object to be processed attached to the inner surface of the container can be scraped off with a simple configuration.

  Moreover, a scraper can be moved with the movement of a to-be-processed object, and it can suppress that the excessive load resulting from interference with a to-be-processed object is applied to a scraper.

  The invention according to claim 2 is the invention according to claim 1, wherein the processing means is rotated about a rotation axis, and the scraper shares the rotation axis with the processing means. It is characterized by being rotated.

  According to such a configuration, the scraper and the processing means can be rotated while sharing the rotation axis.

  For this reason, the force generated by the movement of the object to be moved so as to circulate in the container by the rotation of the processing means can be efficiently transmitted to the scraper.

  The invention according to claim 3 is the invention according to claim 1 or 2, wherein the scraper includes a scraping member that scrapes off an object to be treated attached to an inner surface of the container, and the scraping member includes the scraping member. And a restricting member that restricts the inner surface of the container to face the inner surface.

  According to such a configuration, the scraping member of the scraper can be reliably opposed to the inner surface of the container, and the object to be processed attached to the inner surface of the container can be efficiently scraped.

  According to a fourth aspect of the present invention, there is provided a processing apparatus comprising: a container that stores an object to be processed; and a processing unit that performs processing while moving the object to be processed. A scraper that scrapes off the object to be processed adhered to the inner surface, and a scraping member for scraping the object to be processed adhered to the inner surface of the container, and the scraping member to be disposed opposite to the inner surface of the container. And a restricting member, which is moved by a force generated by the movement of the object being processed by the processing means.

  According to such a configuration, the scraper can be moved using the force generated by the movement of the object being processed by the processing means.

  Therefore, it is not necessary to provide a driving force for moving the scraper, and the object to be processed attached to the inner surface of the container can be scraped off with a simple configuration.

  Moreover, a scraper can be moved with the movement of a to-be-processed object, and it can suppress that the excessive load resulting from interference with a to-be-processed object is applied to a scraper.

  According to the first aspect of the present invention, it is not necessary to provide a driving force for moving the scraper, and the object to be processed adhered to the inner surface of the container can be scraped off with a simple configuration.

  Moreover, a scraper can be moved with the movement of a to-be-processed object, and it can suppress that the excessive load resulting from interference with a to-be-processed object is applied to a scraper.

  According to the second aspect of the present invention, the force generated by the movement of the workpiece to be moved around the container by the rotation of the processing means can be efficiently transmitted to the scraper.

  According to the invention described in claim 3, the scraping member of the scraper can be reliably opposed to the inner surface of the container, and the object to be processed adhered to the inner surface of the container can be efficiently scraped.

  According to the invention described in claim 4, it is not necessary to provide a driving force for moving the scraper, and the object to be processed adhered to the inner surface of the container can be scraped off with a simple configuration.

  Moreover, a scraper can be moved with the movement of a to-be-processed object, and it can suppress that the excessive load resulting from interference with a to-be-processed object is applied to a scraper.

FIG. 1 is a side sectional view showing a mixing apparatus. FIG. 2 is a perspective view of the scraper shown in FIG. FIG. 3 is an enlarged view of a main part in which the scraping member of the scraper shown in FIG. 1 is enlarged. FIG. 4 is a side view of the scraping member shown in FIG. FIG. 5 is a side view of the fixing member shown in FIG. 3. FIG. 6 is an explanatory diagram for explaining a modified example of the scraper, and shows a case where there is only one scraping member. FIG. 7 is an explanatory view illustrating a modified example of the scraper, and shows a case where the frame is formed in a substantially cross shape in a plan view.

  FIG. 1 is a side sectional view showing a mixing apparatus.

  A mixing apparatus 1 (an example of a processing apparatus) is a vertical axis rotary mixing apparatus (high-speed fluidized mixer) for mixing materials (an example of an object to be processed) such as powder particles, I have.

  The mixing tank 3 is open on the upper side and has a tank 4 (an example of a container) for storing the material and an agitation blade 5 (an example of a processing means) for stirring the material (that is, processing while moving the material). And. An upper lid 2 is provided at the upper end of the mixing tank 3 so as to be openable and closable.

  The tank 4 is formed in a substantially cylindrical shape with its lower end closed, and integrally includes a side wall 7 (an example of a wall) extending in the vertical direction and a bottom wall 6 that closes the lower end of the side wall 7. In addition, a discharge portion 11 for discharging the mixed material is provided at the lower end portion of the tank 4. In the tank 4, a scraper 21 (described later) for scraping off material adhering to the inner surface 34 of the side wall 7 is rotatably provided.

  The stirring blade 5 is provided in the tank 4 and includes a rotating shaft 8, a lower blade 9, and an upper blade 10.

  The rotating shaft 8 is formed in a substantially cylindrical shape that penetrates the central portion of the bottom wall 6 of the tank 4 in the vertical direction, and a driving force of a motor (not shown) is transmitted to the center axis A (rotating axis). ) As a center of rotation.

  The lower blades 9 are arranged on the upper side of the bottom wall 6 of the tank 4 with a space therebetween, and are formed in a substantially flat plate shape (substantially S-shaped in plan view) extending from the rotary shaft 8 toward the radially outer side of the rotary shaft 8. Has been. Note that the tip of the lower blade 9 (the outer end in the radial direction of the rotating shaft 8) is curved upward along the bottom wall 6.

  The upper blade 10 is disposed on the upper side of the lower blade 9 with a gap, and is formed in a substantially flat plate shape (substantially S-shaped in plan view) extending from the rotary shaft 8 toward the radially outer side of the rotary shaft 8. ing.

  FIG. 2 is a perspective view of the scraper shown in FIG. FIG. 3 is an enlarged view of a main part in which the scraping member of the scraper shown in FIG. 1 is enlarged. FIG. 4 is a side view of the scraping member shown in FIG. FIG. 5 is a side view of the fixing member shown in FIG. 3.

  As shown in FIGS. 2 and 3, the scraper 21 includes a frame 22 (an example of a regulating member), a plurality (four) of scraping members 23, and a fixing member 24.

  The frame 22 is formed from a material having high rigidity, such as metal, and has a substantially cylindrical shape extending in the vertical direction and having a smaller diameter than the inner diameter of the tank 4. The frame 22 includes a plurality (four) of attachment portions 25 to which the scraping members 23 are attached, a plurality of (two) ring portions 26 that connect the upper ends of the attachment portions 25, and the attachment portions 25. And a supported portion 27 supported by the rotating shaft 8 are integrally provided.

  Each mounting portion 25 has a predetermined thickness and is formed in a flat plate shape that is substantially rectangular in side view and extends in the vertical direction. Further, the mounting portions 25 are arranged at an interval of about 90 ° from each other in the circumferential direction of the frame 22. Each attachment portion 25 is inclined inward in the radial direction of the frame 22 toward the upstream side in the rotation direction R of the scraper 21. Note that the mounting portion 25 has an insertion hole (not shown) through which a bolt 32 (described later) of the fixing member 24 is inserted, and is spaced from each other in the vertical direction at substantially the same pitch as the bolt 32 (described later) of the fixing member 24. A plurality are formed apart.

  Each ring part 26 is formed in a substantially annular shape, and is arranged at an interval in the vertical direction. The upper ring portion 26 is fixed to the upper surface of each attachment portion 25. Further, the lower ring portion 26 is formed with a smaller diameter than the upper ring portion 26, and is fixed to the inner edge of each attachment portion 25.

  The supported portion 27 is formed in a substantially cruciform shape in plan view, and includes a contact portion 28 and a plurality (four) of arm portions 29.

  As shown in FIG. 2, the contact portion 28 is disposed in the center of the diameter of the frame 22 and is formed in a substantially cylindrical shape extending in the vertical direction. The lower end portion of the contact portion 28 is formed in a substantially conical shape having a top portion directed downward.

  The arm portion 29 is formed in a substantially bowl shape extending in the radial direction of the frame 22 so as to connect the upper end portion of the contact portion 28 and the lower end portion of the attachment portion 25. In addition, the arm portion 29 has an inner half in the radial direction of the frame 22 bent upward.

  As shown in FIGS. 3 and 4, the scraping member 23 is made of an elastic material such as rubber and has a predetermined thickness and is formed in a substantially rectangular flat plate shape in a side view extending in the vertical direction. Further, the scraping member 23 has one end portion in the width direction (a direction orthogonal to both the thickness direction and the vertical direction, hereinafter the same in the description of the scraping member 23) formed in a substantially wedge shape in cross section. . The scraping member 23 is formed with a plurality of through holes 31 that are long in the width direction and spaced apart from each other in the vertical direction.

  As shown in FIGS. 3 and 5, the fixing member 24 is formed of a material having high rigidity such as metal and has a predetermined thickness and is formed in a substantially rectangular flat plate shape in side view extending in the vertical direction. Further, the scraping member 23 includes a plurality of bolts 32 extending from one surface in the thickness direction to one side in the thickness direction at substantially the same pitch as the long holes 31 of the scraping member 23 and spaced apart from each other in the vertical direction. , Has been fixed.

  As shown in FIG. 3, the scraping member 23 is fixed to the mounting portion 25 so that one end in the width direction protrudes outward in the radial direction of the frame 22 from the mounting portion 25 or the fixing member 24 of the frame 22. It is sandwiched between the member 24.

  In addition, the tip of the bolt 32 of the fixing member 24 passes through the elongated hole 31 of the scraping member 23 and the insertion hole (not shown) of the mounting portion 25, and the scraping member 23 of the scraping member 23 with respect to the mounting portion 25. It protrudes to the opposite side. A nut 33 is screwed onto the tip of the bolt 32 of the fixing member 24.

  Thereby, the scraping member 23 is fixed to the attachment portion 25 of the frame 22.

  As shown in FIG. 1, the scraper 21 is placed on the stirring blade 5 so that the lower end portion of the contact portion 28 is in contact with the upper end portion of the rotating shaft 8.

  At this time, the scraping member 23 is disposed to face the inner surface 34 of the side wall 7 of the tank 4 with a slight gap. That is, the frame 22 restricts the scraping member 23 so as to face the inner surface 34 of the side wall 7 of the tank 4.

  Next, the scraping operation of the scraper 21 during the material mixing process in the mixing apparatus 1 will be described.

  As shown in FIG. 1, when the material is put into the tank 4 and the stirring blade 5 is rotated in the rotation direction R, the material in the tank 4 is rotated in the rotation direction R about the central axis A of the rotation shaft 8. Moved around.

  Then, the material moved around interferes with the scraper 21. That is, the force generated by the circular movement of the material is transmitted to the scraper 21.

  Then, the scraper 21 is rotated in the rotation direction R as shown in FIG. At this time, the scraper 21 is rotated about the central axis A of the rotary shaft 8.

  The scraper 21 is slightly moved in the radial direction while rotating in the rotation direction R, with the contact portion 28 serving as a fulcrum by the distance between the inner surface 34 of the side wall 7 of the tank 4 and the scraping member 23. .

  Thereby, as shown in FIG. 3, the scraping member 23 comes into contact with the inner surface 34 of the side wall 7 of the tank 4.

  When the scraping member 23 comes into contact with the inner surface 34 of the side wall 7 of the tank 4, the material attached to the inner surface 34 of the side wall 7 of the tank 4 is scraped off by the scraping member 23.

  According to the mixing device 1 and the scraper 21, the scraper 21 can be moved using the force generated by the movement of the material stirred by the stirring blade 5.

  Therefore, it is not necessary to provide a driving force for moving the scraper 21, and the material attached to the inner surface 34 of the tank 4 can be scraped off with a simple configuration.

  Moreover, the scraper 21 can be moved together with the movement of the material, and it is possible to suppress an excessive load caused by the interference with the material on the scraper 21.

  Moreover, according to this mixing apparatus 1, as shown in FIG.1 and FIG.2, the scraper 21 and the stirring blade 5 can be rotated sharing the central axis A mutually.

  Therefore, the force generated by the movement of the material that is circulated around the tank 4 by the rotation of the stirring blade 5 can be efficiently transmitted to the scraper 21.

Further, according to the mixing device 1, as shown in FIGS. 1 and 3, the scraping member 23 of the scraper 21 can be reliably opposed to the inner surface 34 of the tank 4 and adhered to the inner surface 34 of the tank 4. The material can be scraped efficiently.
(Modification)
FIG. 6 is an explanatory diagram for explaining a modified example of the scraper, and shows a case where there is only one scraping member. FIG. 7 is an explanatory view illustrating a modified example of the scraper, and shows a case where the frame is formed in a substantially cross shape in a plan view.

  In the above-described embodiment, the four scraping members 23 are provided at intervals of 90 °, but the number of the scraping members 23 is not particularly limited. For example, the scraping members 23 are two at intervals of 180 °. Alternatively, only one (see FIG. 6) may be provided.

  In the above-described embodiment, the upper end portion of each attachment portion 25 is connected by the ring portion 26. However, the shape of the frame 22 is not particularly limited as long as each scraping member 23 can be positioned in the radial direction. The upper end portions of the attachment portions 25 can be connected by a hook-shaped member having a substantially cross shape in plan view, as with the lower end portions thereof (see FIG. 7).

1 Mixing device (an example of a processing device)
4 Tank (an example of a container)
5 Stirring blade (an example of processing means)
21 Scraper 22 Frame (Example of restriction member)
23 scraping member 34 inner surface A center axis (an example of a rotation axis)

Claims (4)

A container for storing an object to be processed;
Processing means for processing while moving the object to be processed in the container;
A scraper that is provided in the container and is moved by a force generated by the movement of the object to be processed being processed by the processing means, and scrapes off the object to be processed adhered to the inner surface of the container. , Processing equipment. The processing means is rotated about a rotation axis;
The processing apparatus according to claim 1, wherein the scraper is rotated so as to share the rotation axis with the processing unit. The scraper is
A scraping member that scrapes off an object to be treated adhered to the inner surface of the container;
The processing apparatus according to claim 1, further comprising a regulating member that regulates the scraping member so as to face the inner surface of the container. In a processing apparatus comprising a container for storing a processing object and a processing means for processing while moving the processing object, a scraper disposed in the container and scraping off the processing object adhered to the inner surface of the container Because
A scraping member that scrapes off an object to be treated adhered to the inner surface of the container;
A regulating member that regulates the scraping member to be disposed opposite to the inner surface of the container;
The scraper is moved by a force generated by movement of an object to be processed being processed by the processing means.

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