JP4499535B2 - Stirrer - Google Patents

Description

  The present invention relates to an agitation apparatus including an agitation tank and an agitation member that rotates inside the agitation tank, and more particularly to an agitation apparatus that is most suitable for producing a mixed feed for feeding to domestic animals such as pigs and chickens.

  Conventionally, a method of mixing a plurality of different types of feed using a stirrer is known as means for producing livestock mixed feed (see Patent Document 1). This type of agitation device includes an agitation tank and an agitation member that rotates in the agitation tank, and a plurality of feeds charged in the agitation tank are agitated by rotation of the agitation member to mix the plurality of feeds with each other. To make mixed feed.

  By the way, recently, a method of not only simply mixing a plurality of feeds having different nutrients but also fermenting them in a stirring tank and taking them out as fermented feeds is known. However, in the case of fermented feed, the feed becomes sticky in the process of fermentation, so it is necessary to dry the feed after aging. This drying process is to dry the mixed feed by heating the entire stirring tank with a heater and simultaneously rotating the stirring member in the stirring tank. However, when the feed is sticky, The feed may adhere to the inner wall surface of the agitation tank and remain as it is, which has also caused germs to propagate.

2. Description of the Related Art Conventionally, there has been known a stirring device configured to attach an elastic material to a tip portion of a stirring member and make the elastic material come into strong contact with the inner wall surface of the stirring tank and scrape off deposits when rotated ( Patent Document 2). However, in such a stirrer, since the elastic material is brought into strong contact with the inner wall surface of the stirring tank, the elastic material is heavily worn and needs to be frequently replaced. In addition, since the elastic material is fixed, the feed adhering to the gap portion between the adjacent elastic materials cannot be scraped off and remains as it is.
JP-A-8-80428 JP 2004-17026 A

  Accordingly, the problem to be solved by the present invention is to effectively prevent the feed from adhering to the inner wall surface of the stirring tank, to scrape the attached feed quickly and reliably, and to replace the stirring member. It is to provide a stirring device that is not necessary.

To achieve the above object, 攪拌device Ru engaged to the present invention includes a stirring tank, and a stirring member which rotates in the agitation tank, stirring unit swingable on the tip portion of the stirring member A rocking plate provided with a long hole that is loosely fitted to a shaft provided at the tip of the stirring member, and a rotating body rotatably attached to the rocking plate. , at the time of rotation of the stirring member, wherein the rotating body is in contact with the inner wall surface of the agitating tank.

  Since this invention consists of said structure, since a feed does not adhere easily to the inner wall face of a stirring tank, and the attached feed can be removed quickly and reliably, miscellaneous bacteria do not propagate in a stirring tank. Further, since the stirring member is not in strong contact with the inner wall surface of the stirring tank, it is not necessary to replace the stirring member due to wear.

  Hereinafter, based on an accompanying drawing, an embodiment of a feed stirring device concerning the present invention is described in detail. FIG. 1 thru | or FIG. 9 shows 1st Embodiment of the feed stirring apparatus based on this invention. 1 to 3 show the overall structure of the feed stirring device 1, a cylindrical stirring tank 3 held at both ends by a frame 2, and a stirring member 4 disposed in the stirring tank 3. With. The agitation tank 3 comprises a cylindrical body sealed with a cylindrical side wall surface 6 and front and rear wall surfaces 7a and 7b, and a feed agitation chamber is formed therein. An inlet 9 for raw material feed that is opened and closed by a lid 8 is provided at one side of the side wall 6, and a mixed feed outlet (not shown) that is also opened and closed by a lid 10 at the bottom of the side wall 6. Is provided. Inside the agitation tank 3, a rotating shaft 12 having both ends supported by the bearing portions 11a and 11b of the front and rear wall surfaces 7a and 7b is disposed. A driving shaft 13 extends from one end of the rotating shaft 12, and the rotating shaft 12 is rotated by a driving force from a motor 15 connected to the driving shaft 13 and a gear mechanism 14.

  In this embodiment, the rotating shaft 12 rotates on a substantially central axis of the stirring tank 3, and the stirring member 4 is attached around the rotating shaft 12. A plurality of the agitating members 4 are disposed along the axial direction of the rotating shaft 12, and are attached to the adjacent agitating members 4 with an angle of 90 degrees in the circumferential direction of the rotating shaft 12. These stirring members 4 are composed of a rod-shaped arm portion 20 and a stirring portion 21 attached to the tip portion thereof. In this embodiment, as shown in FIGS. 4 and 5, the stirring unit 21 includes a pair of shafts 22 a and 22 b fixed to the tip of the arm portion 20, and a plurality of loosely fitted to the shafts 22 a and 22 b. The rocking plate 23 is formed. The shafts 22a and 22b extend in a direction orthogonal to the arm portion 20, and stoppers 24 for preventing the swing plate 23 from falling off are attached to both ends thereof. On the other hand, the swing plate 23 is made of an elliptical thin metal plate. A long hole 25 that is loosely fitted to the two shafts 22a and 2b is provided, and a roller 26 as a rotating body that contacts the inner wall surface 5 of the agitation tank 3 is rotatably attached to the tip portion. ing. This roller 26 is made of a material softer than the inner wall surface 5 so as not to damage the inner wall surface 5 of the agitation tank 3, and an engineering plastic such as acetal resin such as Delrin (trade name) or polyamide resin is used. The

  As shown in FIG. 5, the long diameter L1 of the long hole 25 established in the swing plate 23 is longer than the outside dimension L2 of the two shafts 22a and 22b, and the short diameter of the long hole 25 is It is larger than the diameter dimension of the shafts 22a and 22b. Therefore, as shown in FIG. 6, the swing plate 23 can move freely within the range of the long hole 25 in the direction of the arrow A, and as shown in FIG. 7, the shafts 22a and 22b. In addition to being able to move freely in the direction of the arrow B parallel to the direction of the arrow, as shown in FIG. Actually, the movements in the A, B, and C directions can be entangled.

  In this embodiment, the arm portion 20a also extends on the opposite side of the stirring member 4 having the above-described configuration. The tip of the arm portion 20a is not provided with the agitating portion 21 as described above, but performs an auxiliary function for agitation. In addition, as described above, the stirring member 4 is attached in order by shifting the angle by 90 degrees in the circumferential direction of the rotating shaft 12, but the adjacent stirring portions 21 are arranged without gaps, so that When this is done, the entire inner wall surface 5 of the stirring vessel 3 can be covered with the stirring unit 21.

  Next, the operation of the feed stirring device 1 having the above configuration will be described. First, the lid 8 of the agitation tank 3 is opened, and a plurality of feeds having different nutrients, for example, rice bran and okara, are introduced into the agitation chamber from the introduction port 9 in predetermined amounts. At that time, microorganisms for promoting fermentation of the feed are added together. When charging of feed or the like is completed, the lid 8 is closed, and then the rotating shaft 12 is driven to rotate the stirring member 4. By this rotation, the roller 26 of the stirring unit 21 provided at the tip of the stirring member 4 picks up the feed while hitting the inner wall surface 5 of the stirring tank 3, and when the stirring unit 21 rotates upward, Fall into. In this way, a plurality of feeds are mixed with each other while being repeatedly scraped and dropped, and at the same time, the fermentation of the feed proceeds and the temperature in the stirring tank 3 gradually rises. stop. And the state is maintained for about one night or two nights, and the feed is matured to promote sufficient fermentation to every corner of the feed.

  After the feed is sufficiently matured, the stirring member 4 is rotated again, and the feed containing moisture is dried while being stirred and taken out from the feed outlet as a mixed feed for livestock. At that time, it is desirable to heat the stirring tank 3 with a heater or the like in order to promote drying.

  As described above, when the stirring member 4 rotates again, the fermented feed is scraped up along the inner wall surface 5 of the stirring tank 3 by the stirring unit 21 provided at the tip of the stirring member 4. By rotating at a high speed, the roller 26 rotates while hitting the inner wall surface 5 of the stirring tank 3 by the centrifugal force. At this time, as shown in FIG. 9, the roller 26 can contact the inner wall surface 5 with a clearance that can freely move back and forth and right and left within a predetermined range. Can be prevented. Further, since the roller 26 comes into contact with the inner wall surface 5 while continuously hitting the inner wall 5 by centrifugal force, the fermented feed is effectively prevented from adhering and the feed 27 once attached to the inner wall surface 5 is also effectively hit off. Can do.

  10 to 13 show a second embodiment of the feed stirring device according to the present invention. In this embodiment, the configuration of the stirring unit 31 provided at the tip of the stirring member 30 is different from that of the first embodiment. That is, a flat plate-like support plate 33 is provided in the orthogonal direction at the tip of the arm portion 32, and a chain 34 is disposed on the front surface of the support plate 33. Both ends of the chain 34 are fixed to both sides of the support plate 33 in a slightly slack state. The chain 34 can be made of the same material as the roller 26 in the above embodiment. In addition, since it consists of the same structure as the said 1st Embodiment except the chain 34 being provided in the front-end | tip of the stirring member 30, detailed description is abbreviate | omitted.

  Therefore, in the stirring member 30 having the above-described configuration, since the chain 34 has slackness, when the rotating shaft 12 is driven to rotate the stirring member 30 quickly, the chain 34 is stretched by the centrifugal force. The chain 34 comes into contact with the inner wall surface 5 of the stirring tank 3 while hitting it, and the feed 27 adhering to the inner wall surface 5 can be effectively knocked down as shown in FIG. Further, the feed is scraped up by the stirring member 30 sufficiently by the support plate 33 and the chain 34 provided at the distal end portion of the arm portion 32.

  In addition, although all said demonstrated as a stirring apparatus of feed, of course, this invention is applicable also to stirring other than feed, such as a garbage.

It is a perspective view showing the whole shape of the stirring device concerning a 1st embodiment of the present invention. It is sectional drawing which shows the internal structure of the said stirring apparatus. It is a perspective view which shows the stirring member attached to the rotating shaft. It is a perspective view which shows the structure of a stirring member. It is a front view of a stirring member. It is the elements on larger scale which show the motion of the arrow A direction of a stirring part. It is the elements on larger scale which show the motion of the arrow B direction of a stirring part. It is the elements on larger scale which show the motion of the stirring part of the arrow C direction. It is explanatory drawing which shows the state which drops the deposit | attachment of an inner wall surface, while the roller of a stirring part moves freely. It is a perspective view which shows the stirring member attached to the rotating shaft which concerns on 2nd Embodiment of this invention. It is a perspective view which shows the structure of a stirring member. It is a front view of a stirring member. It is explanatory drawing which shows the state which drops the deposit | attachment of an inner wall surface, while the chain of a stirring part moves freely.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Feed stirring apparatus 3 Stirring tank 4 Stirring member 5 Inner wall surface 21 Stirring part 22 Shaft 23 Oscillation plate 25 Long hole 26 Roller (rotating body)
30 Stirring member 31 Stirring unit 33 Support plate 34 Chain

Claims (1)

A stirring tank and a stirring member rotating in the stirring tank;
A stirrer capable of swinging is provided at the tip of the stirring member, and a swing plate provided with a long hole in which the stirrer is loosely fitted to a shaft provided at the tip of the stirrer. And a rotating body rotatably attached to an oscillating plate, wherein the rotating body contacts an inner wall surface of the stirring tank when the stirring member rotates.

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