JP2583121Y2 - Stirrer - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a stirrer for mixing, stirring and pulverizing powder materials by using, for example, ceramic balls.

[0002]

2. Description of the Related Art Conventionally, two or more kinds of powder materials are ground, mixed and stirred by using hard balls made of ceramic, forged steel or the like (hereinafter simply referred to as ceramic balls) as a grinding medium. The agitating device generally uses the force generated when the ceramic balls put into a hollow cylindrical stirring drum abut against each other to finely pulverize the two or more types of powder materials, and perform mixing and stirring. Is configured to do so. Next, a schematic structure of a stirring device using the ceramic ball will be described with reference to FIGS.

In FIGS. 12 and 13, reference numeral 1 denotes a stirrer, 2 denotes a stirrer drum, and bearings having support shafts 3, 3 'protruding from the center of both right and left ends provided on support columns 4, 4'. By being inserted through 5, 5 ', it is rotatably supported by the columns 4, 4'. Reference numeral 6 denotes a motor for rotating the stirring drum 2. The motor 6 rotates the stirring drum by a gear 7 mounted on a rotor shaft and a reduction gear 8 mounted on one of the support shafts 3, 3 ′ (left side in FIG. 12). 2 is rotated at a reduced speed. 9
Is an outlet opening at the center of the body of the stirring drum,
A lid 11 is fastened to the flange portion via a packing 10 by a fastening member such as a bolt. Reference numeral 12 denotes an empty space excavated at a position corresponding to the discharge port 9 on the floor surface on which the stirring device 1 is installed, and a roller conveyor 1 for conveying the powder material discharged from the stirring drum 2 on the bottom surface thereof.
A plurality of containers 14 for accommodating powder materials are loaded on the roller conveyor 13. Reference numeral 15 denotes a ceramic ball for crushing the powder material accommodated in the stirring drum 2.

Next, the operation will be described. Now, for example, when two or more kinds of powder materials are crushed and mixed, a plurality of materials to be crushed and mixed and ceramic balls 15 are put into the stirring drum 2. When the stirring drum 2 is rotated by the motor 6, the plurality of materials and the ceramic balls 15 in the stirring drum 2 are separated from the inner wall 1 of the rotating stirring drum 2.
6 is lifted along the inner wall 16 when it reaches a certain height.
The powder material is mixed and stirred while the powder material is sequentially pulverized to a predetermined size by utilizing the force generated when the ceramic balls 15 abut against each other by repeating this state.

When the agitated material in the agitating drum 2 is taken out after the agitating / mixing operation, the outlet 9 of the agitating drum 2 is rotated to a position corresponding to the cavity 12 to open the lid 11. Remove it. Therefore, the agitated material near the discharge port 9 in the stirring drum 2 is discharged into the container 14 from the discharge port 9 as it is. On the other hand, the agitated material remaining at the end in the agitating drum 2 is discharged into the container 14 manually or using a scraping member.

[0006]

However, since the inner wall 16 of the stirring drum 2 has a smooth surface, it is difficult to scrape the powder material and the ceramic balls 15 to a high position. As a result, the ceramic balls come into contact with each other. The force is inevitably weak, and it takes time to pulverize the powder material to a predetermined size, and there is a problem that lumps remain.

In order to solve this problem, it is conceivable that a plurality of plate-like blades are provided vertically in the stirring drum to improve the efficiency of scraping up the stirring material. There have been problems such as the impact force of the ceramic ball hitting the blade increasing the deformation of the blade, and the abrasion of the damage preventing urethane sheet stuck inside the stirring drum becoming severe.

Further, when the agitated material is discharged, the agitated material is dropped and discharged from the discharge port 9 into the container 14, so that the powder material soars due to the impact at the time of discharge, and particularly, the agitated material is a metal. If it is powder or resin powder,
There is a problem that the human body is adversely affected by inhaling the powder material. In addition, there is a problem that not only the ground powder material but also the ceramic balls 15 are discharged together. In addition, since the agitated material remaining in the agitating drum 2 is manually discharged, if the agitated material is a food material, it is very unsanitary, and
There has been a problem that the labor is required, and the discharging operation takes time and effort.

The present invention has been made in consideration of the above-described various problems, and has the advantage of promptly discharging an agitated material without requiring any manpower.
It is an object of the present invention to provide an improved stirrer that reliably eliminates the adverse effects caused by rising of a stirrer, and that can smoothly and satisfactorily pulverize and mix a powder material.

[0010]

According to the present invention, in order to solve the above-mentioned problems, an inner surface of a hollow conical lid detachably mounted on one opening surface of a hollow cylindrical stirring drum is provided.
A plurality of right-angled triangular first blade members are provided in the circumferential direction, one of which is perpendicular to the inner side surface, and the other of which faces the discharge port opened at the head of the conical surface and has a gentle slope. The inner circumferential surface of the stirring drum is provided with a plurality of isosceles triangular (elliptical) second blade members having a gentle slope with respect to the inner circumferential surface. The operation is as follows.

[0011]

According to the present invention, as described above, a right-angled triangular blade member is provided on the inner surface of the hollow conical lid so that the powder member can be loosened when the powder material is crushed and mixed. Utilizing the inclined surface, the powder material and the ceramic ball are lifted to a higher position to promote the sliding and dropping of the ceramic ball, thereby increasing the force of contact between the ceramic balls and crushing the powder material. In addition to promoting the acceleration, the stirrer staying in the stirring drum can be efficiently guided to the discharge port using the vertical surface of the blade member to discharge smoothly and favorably.

Further, by providing an isosceles triangular (elliptical) blade member on the inner peripheral surface of the stirring drum, when the powder material is crushed and mixed, the powder material and the ceramic material are formed by the gentle slope of the blade member. The ball is lifted up to a high position and slides and falls satisfactorily.In addition, the force of the ceramic ball rolling and dropping and contacting each other is increased, so that the powder material can be ground and mixed. Along with promoting, by inclining the blade member,
The impact when the ceramic ball collides with the blade member can be reduced, thereby reliably preventing the blade member in the stirring drum from being damaged.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. First, the schematic structure of the stirring device of the present invention will be described with reference to FIGS. 2 and 3,
Reference numeral 21 denotes a stirrer, and reference numeral 22 denotes a base plate formed by framing an angle into a rectangular shape, and bearings provided with support shafts 23 and 23 'projecting from the center portions of the left and right ends on support columns 24 and 24'. The base plate 22 is rotatably supported by the columns 24, 24 'by being inserted through the columns 25, 25'. 26,2
Numerals 7 are bearings mounted on the four corners of the base plate 22, and these bearings 26 and 27 have pivots 28 and 29 at both left and right ends of the base plate 22 which are rotatable in parallel with each other as shown in FIG. Friction wheels 30 and 31 are fixed to both ends of the pivots 28 and 29, and a pulley 32 is fixed to a substantially central portion of the pivots 28 and 29, respectively.

Reference numeral 33 denotes an electric motor having a built-in speed reduction mechanism mounted on the bottom surface of the base plate 22, and a pulley 35 fixed to a rotor shaft 34 thereof and a pulley 32 provided on the pivots 28 and 29.
Are connected by a V-shaped belt 36 to transmit the rotation of the electric motor 33 to the pivots 28 and 29. 37 is the base plate 2
2, one end of a link 38 is pivotally connected to the connection bracket 37, and another link 39 is pivotally connected to the other end of the link 38. The link 39 is fixed to a drive shaft 41 of a speed reducer 40 to form a crank mechanism A. The speed reducer 40 and an electric motor 42 for driving the speed reducer 40 are connected by a belt 43 to form an electric motor 42.
Is converted into a vertical reciprocating motion via a crank mechanism A.

Reference numeral 44 denotes a hollow cylindrical stirring drum, which is shown in FIG.
As shown in the figure, the front end and the rear end have opening surfaces 45, 45 ', and abutment surfaces 46 which come into contact with the friction wheels 30, 31 are provided around the outer periphery of both ends of the stirring drum 44, By bringing the contact surface 46 into contact with the friction wheels 30 and 31, the stirring drum 44 is rotatably mounted on the base plate 22 via the friction wheels 30 and 31. Reference numeral 47 denotes a hollow conical lid body, which is provided with a stirrer discharge port 48 at the top thereof, and is detachably attached to a flange 49 provided at the front end opening surface 45 of the stirrer drum 44 with a bolt or the like via packing. Mounted. 50
Is an opening / closing lid for closing the discharge port 48 provided in the lid 47 so as to be able to open and close. Reference numeral 51 denotes a hollow cone-shaped lid, on which a handle 52 is provided at the top, and a rear end opening surface 4 of the stirring drum 44 is provided.
It is detachably attached to the flange 49 provided on the 5 'using a bolt or the like via a packing. 53 is a stirring drum 4
4 is a locking roller rotatably engaged between a pair of locking projections 54, 54 provided on the outer periphery of the base 4, and a fixed base 55 mounted on the base plate 22 near the protruding portions of the support shafts 23, 23 '. The friction wheel 3 is attached to the upper end of an arm 56 which is detachably attached in the up-down direction so that the stirring
Prevent slipping from 0,31.

Next, the blade members provided on the lid 47 and the stirring drum 44 will be described. First, as shown in FIG. 1, the first blade member 57 provided on the inner side surface of the lid 47
A right-angled triangular-shaped slat 58 with one perpendicular to the inner surface and the other facing the outlet 48 and having a gentle slope is attached to the inner surface of the lid 47 by welding or the like. After that, the inner surface of the lid 47 and the blade plate 58
A urethane sheet 59 is adhered on the upper surface, and thereafter, the vertical surface 60 of the first blade member 57 is placed on the urethane sheet 59.
The urethane plate 61 made of, for example, a hard synthetic resin and the urethane plate 63 formed of, for example, a hard synthetic resin, which forms the inclined surface 62, are fastened to the blade plate 58 with screws or the like. As a result, the vertical cross-sectional shape is configured as a right-angled triangle.

Next, as shown in FIG. 11, the second blade member 64 provided on the inner peripheral surface of the agitating drum 44 is provided on the inner peripheral surface of the agitating drum 44 so as to be gentle with respect to the inner peripheral surface. After attaching a substantially V-shaped blade plate 65 having an inclined surface by welding or the like, a urethane sheet 59 is attached on the inner peripheral surface of the stirring drum 44 and the blade plate 65, and thereafter, the urethane sheet From above, for example, a urethane plate 66 made of a hard synthetic resin is fastened to the blade plate 65 with screws or the like, thereby forming an isosceles triangle (shape).

As shown in FIGS. 6 and 7, a plurality of the first blade members 57 are provided along the circumferential direction on the horizontal surface 67 and the conical surface 68 on the inner surface of the lid 47 (in the present invention). Are attached at intervals of 120 °), and covers 69 are attached to both ends of the first blade member 57 with an adhesive or the like so that powder material or ceramic balls do not enter the first blade member 57.

As shown in FIGS. 4 and 5, the second blade member 64 is provided on the inner peripheral surface of the stirring drum 44 in the circumferential direction from the front end opening surface 45 to the rear end opening surface 45 '. A plurality of (three at 120 ° intervals in the present invention) are attached, and a cover 70 is attached to both ends thereof with an adhesive or the like so that powder material or ceramic balls do not enter the second blade member 64. Stick it.

Next, the operation of the stirring device 21 will be described. Now, for example, when mixing two or more kinds of powder materials, a plurality of powder materials and ceramic balls that need to be ground and mixed are put into the stirring drum 44, and the stirring drum 44 is moved by the electric motor 33 to the clock of FIG. When you rotate around,
The plurality of powder materials and the ceramic balls in the stirring drum 44 are scraped up to a predetermined height by a second blade member 64 provided on the inner peripheral surface of the stirring drum 44, and when reaching the height, fall and fall into the ceramic balls. The powder material is pulverized to a predetermined size by the force of mutual contact and agitation and mixing are performed. On the other hand, also in the lid 47, the powder material and the ceramic balls are scraped up to a predetermined height by using the inclined surface 62 of the first blade member 57 provided on the inner side surface of the lid 47 in the same manner as described above. Then, the powder material is crushed to a predetermined size by the force of mutual contact of the ceramic balls, and the mixture is stirred and mixed.

The stirring drum 44 is connected to the support shafts 23, 2
The plurality of powdered materials and ceramic balls in the stirring drum 44 are swung like a seesaw by the electric motor 42 through the crank mechanism A around the center 3 ′.
By moving the ceramic balls obliquely from the front to the rear and from the rear to the front, the powder material is pulverized to a predetermined size by effectively utilizing the force of the ceramic balls abutting each other, and agitated and mixed.

As described above, by rotating and oscillating the stirring drum 44, the plurality of powder materials in the stirring drum 44 are uniformly and finely pulverized by the ceramic balls in a short time, and are uniformly stirred and mixed. Can be.

Next, referring to FIGS. 8 to 10, a description will be given of a case where the stirred material after the mixing operation or the like is discharged from the stirring drum 44. FIG. First, the agitating drum 44 is tilted by the crank mechanism A so that the discharge port 48 is directed upward, and then the opening / closing lid 50 is rotated in the opposite direction to the stopper 72 of the locking metal fitting 71, so that the lid 47 Remove more. Thereafter, as shown in FIG.
4 is engaged by the handle 76 to a position where it comes into contact with the stopper 72 of the locking metal fitting 71,
The discharge cylinder 74 is attached to the discharge port 48 of the lid 47 (see FIG. 9). Subsequently, as shown in FIG. 10, a tubular cloth chute 77 is put on the tip of the discharge cylinder 74, and the chute 77 is detachably fastened with a cloth band 78.

After attaching the discharge cylinder 74 to the lid 47 as described above, the lower end of the chute 77 is put in the container 79 as shown in FIG.
When the mixture is tilted forward at the maximum inclination angle, the agitated material in the stirring drum 44 is discharged into the container 79 through the discharge port 48 → the discharge tube 74 → the chute 77, but the ceramic balls remain behind the discharge tube 74. Semicircular wire mesh 80 attached to the end
Is not discharged to the outside of the stirring drum 44.

Thereafter, when the stirring drum 44 is rotated in the counterclockwise direction while maintaining the forward tilting state, the stirring material remaining from the lower portion of the discharge port 48 of the cover 47 to a part of the stirring drum 44 is retained. Is a first member provided on the inner surface of the lid 47.
The first blade member 57 and the lid 47 are scraped up by the vertical surface 60 of the blade member 57 in the circumferential direction of the lid 47.
Is guided to the discharge port 48 by the conical surface 68, and is discharged from the discharge port 48 of the lid 47 of the agitating drum 44, which rotates obliquely, into the container 79 through the discharge cylinder 74 → the chute 77.

As described above, the agitated material causes the agitating drum 44 to be tilted forward at the maximum angle and is rotated to sequentially rotate the discharge cylinder 7.
4 → By discharging to the container 79 via the chute 77, the agitated material can be automatically and quickly discharged to the end without scattering or requiring any human intervention.

[0027]

As described above, according to the present invention, on the inner surface of the lid, the vertical surface for improving the reduction of the discharge efficiency on the inclined surface and the inclined surface for reducing the impact force when the ceramic ball hits. Since the first blade member of a right-angled triangular shape integrally provided with the surface is provided, when the powder material is crushed and mixed, the agitated material is once scraped up to a high position and dropped by effectively utilizing the inclined surface. Therefore, the force generated when the ceramic balls come into contact with each other can be increased, and as a result, the pulverization of the powder material can be favorably promoted, and at the time of discharge, the vertical surface of the blade member is reduced. Utilizing, the stirrer remaining from the lower part inside the outlet of the lid to a part in the stirring drum is sequentially scraped up in the circumferential direction of the lid and discharged from the outlet. Ah Because, quite without requiring human intervention,
The agitated material can be discharged smoothly, favorably, and efficiently.

Further, a substantially blade-shaped second blade member having a gentle slope is provided on the inner peripheral surface of the stirring drum to reduce the impact force when the ceramic ball hits. At the time of mixing, by stirring up the agitated material to a high position using one of the inclined surfaces and dropping it,
Since the contact force between the ceramic balls can be increased, it is possible to suppress the generation of lumps by promoting the pulverization of the powder material, thereby facilitating the mixing and stirring work of the powder material. At the same time, the impact force when the ceramic ball collides with the second blade member can be reduced, whereby the wear of the urethane sheet and the deformation of the blade can be reliably prevented.

Each of the blade members provided on the inner surface of the lid and the inner peripheral surface of the stirring drum is formed by attaching a urethane sheet to the blade plate and then fastening the urethane plate with bolts or the like. The urethane sheet and the urethane plate can alleviate the shock generated when they come into contact with each other, thereby preventing the blade plate from being deformed.Moreover, the urethane sheet is adhered over the entire inner surface of the lid and the inner peripheral surface of the stirring drum. Since the ceramic ball is worn, it is possible to reliably prevent the inner surface of the lid and the inner peripheral surface of the stirring drum from being damaged by the impact when the ceramic ball falls.

[Brief description of the drawings]

FIG. 1 is an enlarged sectional view showing a first blade member used in the stirring device of the present invention.

FIG. 2 is a front view showing the stirring device of the present invention.

FIG. 3 is a side view showing the stirring device of the present invention.

FIG. 4 is a longitudinal sectional view showing a stirring drum provided with a second blade member used in the stirring device of the present invention.

FIG. 5 is a cross-sectional view of the stirring drum having the second blade member used in the stirring device according to the present invention, taken along line AA ′ of FIG. 4;

FIG. 6 is a perspective view showing a lid provided with a first blade member used in the stirring device of the present invention.

FIG. 7 is an explanatory view showing the inner surface of the lid provided with the first blade member used in the stirring device of the present invention.

FIG. 8 is an exploded perspective view showing a lid and a discharge adapter.

FIG. 9 is a partially cutaway side view showing a state in which a discharge adapter is attached to a lid.

FIG. 10 is a front view showing the use state of the stirring device of the present invention.

FIG. 11 is an enlarged sectional view showing a second blade member used in the stirring device of the present invention.

FIG. 12 is a longitudinal sectional view showing a conventional stirring device.

FIG. 13 is a cross-sectional view showing a state where a conventional stirring drum is cut along a line XX ′ in FIG.

[Explanation of symbols]

 Reference Signs List 21 stirrer 44 stirring drum 47 lid 48 discharge port 50 opening / closing lid 57 first blade member 58 blade plate 59 urethane sheet 60 vertical surface 61 urethane plate 62 inclined surface 63 urethane plate 64 second blade member 65 blade plate 66 urethane Plate 68 Conical surface 73 Discharge adapter 74 Discharge cylinder 77 Chute 78 Cloth 79 Container 80 Wire mesh A Crank mechanism

Claims (2)

(57) [Scope of request for utility model registration] To 1. A pivotally supported by the support shaft crank mechanism and the drive linked base plate, the stirrer was nono rotatably stirring drum via a friction wheel to the electric drive, hollow
Removably attached to one opening surface of a cylindrical stirring drum
The inner surface of the hollow conical lid
Is vertical and the outlet opening at the head of the conical surface of the lid
A right-angled triangle with a gentle slope on the other side
A plurality of first blade members provided in a circumferential direction, wherein the stirring drum
The inner peripheral surface has a gentle slope with respect to the inner peripheral surface
A plurality of rounded second blade members are provided in the circumferential direction.
Stirring apparatus characterized by the. 2. The stirring device according to claim 1, wherein the blade member provided on the lid and the stirring drum is formed of a hard synthetic resin.