JPS6127625Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a stirring drum support device that reliably supports a stirring drum containing two or more types of powder materials requiring mixing operations during its operation.

In recent years, stirring devices for stirring two or more types of powder or granular materials that need to be mixed, such as powdered materials for food and feed, or metal powders used as materials for sintered metals, have become increasingly popular.
The stirring drum containing the mixed materials is rotated and swung like a seesaw to effectively perform the mixing operation. Then, in order to prevent the stirring drum from falling off the stirring device during rocking, the stirring drum is placed on its side and mounted on a base plate rotatably via a friction wheel, and the support is set upright so that the stirring drum is sandwiched from both sides. A presser roller is rotatably attached to the upper end of this support to clamp the top of the body of the stirring drum that has fallen sideways from both sides, so that even if the stirring drum swings like a seesaw during operation, It is held by a presser roller so that it does not fall off the base plate. However, when cleaning the stirring drum and placing it on the base plate, it is necessary to separate the presser roller from the stirring drum each time, and the support rollers each having one presser roller must be separated from each other, for example. The presser roller was rotated 90 degrees to turn it horizontally to remove contact with the stirring drum, which was very time-consuming and troublesome. In addition, since the support with the presser roller is installed upright next to the stirring drum, the stirring drum cannot be raised or lowered unless it is hoisted above the support. Moreover, the stirring drum must be raised and lowered between columns that stand upright on the base plate, so if the work is not done carefully, the stirring drum, including the mixed material, can become quite heavy. There was a risk that it would collide with the retainer rollers and support columns, damaging these retainer rollers and the like.

The present invention eliminates the above-mentioned drawbacks and allows multiple rollers for holding down the stirring drum to come into contact with and release from the stirring drum in one operation, thereby making lifting and lowering of the stirring drum quick, easy, and safe. Embodiments of the present invention will be described below with reference to the drawings. 1 is a base; 2 and 2' are support frames standing upright on the base 1; 3 is a reinforcement provided on the support frames 2, 2'; 4 is a base plate framed in a rectangular shape using angles, etc.; and a support shaft 5 protruding from both sides of the base plate is attached to the support frames 2, 2';
By inserting it into the bearing 6 installed on 2',
The base plate 4 is rotatably supported by the support frames 2, 2'. 7 is a bearing plate attached to the four corners of the base plate 4,
Two pivot shafts 8 are rotatably inserted along the longitudinal direction of the base plate 4, and friction wheels 9 are provided at both ends of the pivot shafts 8.
A pulley 10 is attached to each center. Reference numeral 11 denotes a mounting base that is integrally formed with the base plate 4 at a distance from the base plate 4 below the center of the base plate 4. An electric motor 12 with a speed reduction mechanism is installed on this mount 11, and this electric motor 12 is drivingly connected to a pulley 10 by a belt 13 to rotate a friction wheel 9 attached to a pivot shaft 8. Reference numeral 14 denotes a connecting fitting fixed to one end of the base plate 4 (the left end in Fig. 1);
One end of the connecting rod 15 is pivotally connected to the crank 1, and the other end of the connecting rod 15 is fixed to the output shaft 17 of the reducer 16.
8 to constitute a crank mechanism A, the speed reducer 16 is drivingly connected to the electric motor 20 by the belt 19, and the rotation of the electric motor 20 is changed into an up and down reciprocating motion by the crank mechanism A, and the base plate 4 is moved back and forth. (1st
(on the left and right sides in the figure) around the support shaft 5 like a seesaw. Reference numeral 21 designates a stirring drum in the form of a hollow cylinder, one end of which is closed, a lid 22 for opening and closing the entrance and exit of the mixed material is attached to the other end, and the drum is placed on the friction wheel 9 so as to be rotatable on its side. be done. On the inner surface of the stirring drum 21, scraping plates (not shown) are arranged along its longitudinal direction at intervals in the circumferential direction. 32 is a stirring drum 21 that approaches the mutually corresponding inner surfaces of the friction wheels 9;
The collar plate 24 provided around the outer periphery of the roller is a roller rotatably mounted on the base plate 4 in close proximity to the collar plate 23.
The stirring drum 21 is prevented from moving in the left-right direction in FIG. 1 during operation through the flange plate 23 together with the friction wheel 9. Reference numeral 25 denotes two upright columns on one side of the base plate 4 with a distance maintained in the longitudinal direction.
These pillars 25 are parallel to each other, and their upper ends protrude upward from the body of the stirring drum 21. 2
Reference numeral 6 denotes a rotation shaft, which is rotatably mounted on the front upper part of the two columns 25 by a bearing 27 in parallel with the base plate 4 and extending between the two columns 25. Reference numeral 28 denotes a roller support rod with a presser roller 29 rotatably attached to its tip, and a mounting portion 30 provided at the bottom of its base end.
are fixed to both ends of the rotation shaft 26 protruding from the side of the support column 25 using keys or the like, so that the roller support rods 28 become parallel to each other and the presser roller 29 is attached to the stirring drum 21 as shown in FIG. It is attached to a rotating shaft 26 perpendicularly to the support column 25 so as to be able to move together with the rotating shaft 26 while being in rotatable contact with the top. Reference numeral 31 denotes an arm rod that is hung down along the column 25 at a position slightly closer to the distal end than the mounting portion 30 of the roller support rod 28, and 32 is an arm rod that is fixed integrally astride the arm rod 31 and the roller support rod 28. An auxiliary rod 34 that maintains 31 and the roller support rod 28 at right angles.
3 is a locking lever attached to the lower end of the arm rod 31, and its structure will be described in detail with reference to FIG. A center pin 38 is protruded from the tip of the screw tube 37 so as to be freely retractable so that it does not come out of the screw tube 37, and a coil spring 39 is installed at the base end of the screw tube 37 between the center pin 38 and the center pin 38. A set screw 40 is interposed therebetween, and a locking pin 4 is provided on the periphery of the boss 35, which is normally in contact with the support 25.
1 projecting integrally, and is rotatably attached to the arm rod 31 with a bolt 42. 43,4
Reference numeral 3' denotes an engagement hole provided at a required position of the arm rod 31 corresponding to the center pin 38 when the locking lever 34 is rotated to a predetermined position, and as shown in FIG. When the center pin 28 is engaged with the second engagement hole 43', it means that the locking pin 41 is in contact with the support column 25, and when the center pin 38 is engaged with the second engagement hole 43', the locking pin 41 is engaged with the second engagement hole 43'. indicates when the contact with the support column 25 is released. Reference numeral 44 designates an operating handle, the handle shaft of which is provided on the rotating shaft 26 and meshes with a worm gear 48 rotatably mounted on a handle support base 46 mounted on a reinforcing member 45 of the column 25 and a bearing 47 provided on the shaft 25. By rotating the worm wheel 49, the roller support rod 28 is driven. A stopper 50 is provided on the lower surface of the proximal end of the roller support rod 28 via a mounting plate in correspondence with the column 25, and prevents the roller support rod 28 from rotating upward by a certain angle or more. Reference numeral 51 denotes a stopper that is attached to a mounting plate 52 extending from the upper surface of the base end of the roller support rod 28 to the upper end of the support column 25 so that it can come into contact with and separate from the upper end of the support column 25. When the roller support rod 28 is in a horizontal state, the stopper 51 abuts against the upper end of the support column 25 and prevents the roller support rod 28 from descending thereafter.

Next, to explain the operation, the stirring drum 21 containing the materials to be mixed is rotated by the electric motor 12 via the friction wheel 9, and is rotated by the electric motor 20 via the crank mechanism A together with the base plate 4 on the support shaft. 5 (as shown by the two-dot chain line in FIG. 1). For this reason, the stirring drum 21
The material inside is repeatedly pulled up to a required height by a scraping plate (not shown) and then dropped, and is repeatedly moved from one end of the stirring drum 21 to the other end, and in the opposite direction. This allows for efficient stirring and mixing. When the stirring drum 21 is oscillated, the top of the body is pressed by the pressing roller 29.
Since the friction wheel 9 is held to such an extent that rotation is not inhibited by the friction wheel 9, it will not fall off from the friction wheel 9 during operation. When taking out the material from the stirring drum 21,
After tilting the lid 22 side downward, the lid 22 is removed and the stirred material is taken out.

Next, when cleaning the stirring drum 21, the base plate 4 is
When lowering the locking lever 34 from the center, first turn the locking lever 34 to the position indicated by the two-dot chain line in FIG. is pushed by the flat part of the arm rod 31 and temporarily retracts into the screw tube 37 against the coil spring 39, but the locking lever 34
When rotated to the position indicated by the two-dot chain line in the figure, the arm rod 31
The center pin 38 is inserted into the second engagement hole 43' provided in the
is biased by the coil spring 39 into engagement, so that the locking lever 34 separates the fixed locking pin 41 from the support column 25. In this state, when the operating handle 44 is rotated, the rotation shaft 26 is rotated counterclockwise in FIG. 2 by the worm wheel 49 that meshes with the worm gear 48, and the roller support rod 28 is rotated in the same direction. When the roller support rod 28 is moved back from the support column 25 and pulled up to the position indicated by the two-dot chain line in FIG. is held in position. By pulling up the roller support rod 28, the presser roller 29 is released from contact with the stirring drum 21. Therefore, when the stirring drum 21 is lifted, it can be easily moved to the base plate 4 by simply lifting it slightly above the friction wheel 9.
It can be lowered from

When the presser roller 29 is brought into contact with the stirring drum 21, the rotation shaft 26 is also rotated in the same direction by rotating the operating handle 44 in the opposite direction to that described above, and when the roller support rod 28 reaches the horizontal position, A stopper 51 comes into contact with the upper end of the support column 25 to prevent the roller support rod 28 from descending. Therefore, the presser roller 29 can be brought into contact with the stirring drum 21 in an optimal state in a rotatable manner without pressing the stirring drum 21 more than necessary. Thereafter, the locking lever 34 is returned to its original position (solid line position in FIG. 1), and the center pin 38 is engaged with the first engagement hole 43, so that the locking pin 41 is fixed to the stopper pin provided on the support column 25. 53 is received and abuts against the support column 25 to prevent the roller support rod 28 from moving upward.

As described above, the present invention involves simultaneously moving a plurality of presser rollers into and out of contact with the stirring drum by operating a handle, which prevents the stirring drum, which is rotatably supported by the friction wheel, from falling off the friction wheel during rocking. By releasably latching and fixing the roller support rod equipped with this presser roller to the column having the roller support rod in one motion, the presser roller can be quickly and easily brought into contact with and separated from the stirring drum for stirring. This system allows the drum to be raised and lowered easily without damaging the presser roller or support.When raising and lowering the stirring drum as in the past, it is necessary to raise and lower the drum to the top of the support with the presser roller. This is completely different from the method of raising and lowering the drum by lifting it up, and in this case, a support rod is placed upright on only one side of the base plate, and a roller support rod equipped with a presser roller is attached to this column, and multiple presser rollers are moved from the stirring drum at once by operating the handle. Since the presser roller can be moved away from the stirring drum, it is possible to quickly and easily bring the presser roller into contact with and separate from the stirring drum. Raising and lowering can be done quickly and easily by simply lifting the agitation drum slightly above the friction wheel, without damaging the support or presser roller on the opposite side of the support. In addition, the plurality of roller support rods having presser rollers can be raised and lowered with a small force by using a worm gear and a worm wheel interposed between the operating handle and the rotating shaft to which the roller support rods are fixed. I can do it. Furthermore, the locking lever that fixes the roller support rod to the column can be unlatched from the roller support rod and the column with a single action, and even after the locking lever is removed, the center pin works to keep the locking lever in its position after removal. This does not prevent the roller support rod from returning to its original position, and when the roller support rod is located horizontally, it is always lowered from the horizontal position by the stopper that is in contact with the upper end of the support column. Therefore, the presser roller has a number of remarkable effects in practical use, such as being completely free from being pressed against the stirring drum by excessive force due to excessive rotation of the operation handle, thereby inhibiting the rotation of the stirring drum.

[Brief explanation of the drawing]

FIG. 1 is a front view of a stirring device equipped with the stirring drum support device of the present invention, FIG. 2 is a side view of the stirring device,
FIG. 3 is a longitudinal sectional view showing a main part of the locking lever with a portion cut away. 4... Base plate, 21... Stirring drum, 25... Support column, 26... Rotating shaft, 28... Roller support rod,
29... Presser roller, 31... Arm bar, 34...
Locking lever, 41...Latching pin, 44...Operation handle.

Claims (1)

[Scope of utility model registration request] The stirring drum is mounted on the base plate through a friction wheel so as to be parallel to the base plate and rotatable, and on one side of the base plate, which swings back and forth, a plurality of columns are installed at intervals in the longitudinal direction of the base plate. The rotating shaft is mounted on the upper part of the above-mentioned pillars in parallel with the base plate, and the roller support rods are fixed to both ends of the rotating shaft so as to extend horizontally to a position above the stirring drum. A presser roller is rotatably attached to the tip of the roller support rod in contact with the stirring drum, and an arm rod is installed at the base end along the column, and the arm rod can be freely connected to and detached from the column. A locking lever equipped with a locking pin that locks on is rotatably mounted, and the operating handle can be driven via a worm gear that meshes with a worm wheel attached to the rotation shaft. A support device for a stirring drum in a connected stirring device.