JP2001278453A - Powder and grain feeder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a bridge of powder and grain from being formed in an inner cylinder 2. SOLUTION: This powder and grain feeder is so formed that an outer cylinder 1 is erected on a bottom plate 1', the inner cylinder 2 is supported in the upper part of the bottom plate 1' via a powder and grain discharge clearance t, a through hole is provided in the center of the bottom plate 1', a plurality of spokes 8 positioned above the bottom plate 1' are provided in an erect rotary shaft 7 penetrating through the through hole and formed into a rotary body, a cap 13 is provided on the top of the rotary shaft 7, an annular passage 5 between inner and outer cylinders is formed with the cylindrical outer edge 9 of the rotary body approaching to the internal circumference of the outer cylinder 1, and the powder and grain discharged from the powder and grain discharge clearance t by the rotation of the rotary body are discharged from a powder and grain discharge port 6. This feeder is characterized to have agitator 14 for preventing the bridge. The agitator 14 collapses the powder and grain on the cap 13 by the rotation of the cap 13 so as to prevent the bridge from being formed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a powder and granular material feeder for supplying powder and granular material.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 29, an outer cylinder 71 is erected on a bottom plate 70, and an inner cylinder 72 is disposed above the bottom plate 70 via a powder discharge gap t. Support the bottom plate 70
A boss 74 is fitted to an upright rotary shaft 73 penetrating the through hole, a cap 75 is provided on the boss 74, and a spoke 76 is provided on the bottom plate 70 via the boss 74. To form a rotating body, and the cylindrical outer edge 77 of the rotating body is brought close to the inner circumference of the outer cylinder 71 to form an annular passage 7 between the inner and outer cylinders.
8 is formed, and the granular material discharged from the granular material discharge gap t is discharged from the granular material discharge port 79 formed in the annular passage 78.

[0003]

By the way, in the conventional feeder described above, a hopper 80 for supplying the granular material is connected to the outer cylinder 71, and the granular material is supplied to the hopper 80. The granular material may be affected by the surrounding environment due to its physical properties. In a case where the humidity is high, the granular material forms a bridge B from the vicinity of the connection portion 72a of the hopper 80 to the cap 75, and a cavity is formed below the bridge B. There is a problem that the formation of S hinders the supply of the granular material. Therefore, it was necessary to take a separate measure for powders and granules that easily cause bridges.

Further, since the conventional spoke 76 is a straight line as shown in FIG. 31, the force for sending out the granular material to the annular passage 78 is relatively weak, and when the volume of the granular material in the hopper 80 is reduced, the discharge is performed. There has been a problem that it becomes unstable and it takes a relatively long time to discharge the entire amount.

[0005] In addition, the edge 76a of the conventional spoke 76
Has a surface perpendicular to the powder in the rotation direction (A direction), and the edge has a relatively large thickness. Therefore, in the case of a powder having a large resistance, the driving load of the spoke 76 increases. There was a problem.

[0006] On the other hand, the above-mentioned conventional granular material supply machine is shown in FIG.
Since the water receiving tray 81 and the water receiving plate 81 'are fixed by a plurality of bolts 82 as shown in FIG. In this case, there is a problem that workability is low.

Further, the discharge chute 83 of the conventional feeder is used.
Is fixed with at least two bolts, so that there is a problem that it takes a lot of time to remove and attach in cleaning or the like.

Further, in a granular material feeder in which the upper end opening of the outer cylinder is closed by a donut-shaped lid provided on the outer periphery of the inner cylinder, the inner cylinder and the donut-shaped lid are connected to the upper end of the outer cylinder by using a hinge. The opening was opened and closed, and the hook connected to the wire or chain was hooked on a fixed object to keep it open.However, with this lock mechanism, it is necessary to work while supporting the open donut-shaped lid etc. with one hand There was a problem that the work was not easy.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a powder and granular material feeding machine which is capable of providing agitation to a cap and preventing the formation of a bridge of the powder and granular material for the purpose of quickly and smoothly supplying the powder and granular material. And

[0010] It is another object of the present invention to provide a powder and granular material feeder which makes the shape of a spoke a curved shape, increases the force for feeding the powder and granular material, and enables stable and quick discharge.

Another object of the present invention is to provide a powder and granular material supply machine capable of reducing the load on the spoke and realizing efficient supply of the granular material by processing the edge shape of the spoke. I do.

Another object of the present invention is to provide a powdery and granular material feeder provided with a water receiving tray which can be easily attached and detached in a short time.

Another object of the present invention is to provide a powder and granular material feeder which can be easily attached and detached and has a discharge chute having a high sealing property.

Another object of the present invention is to provide a powder and granular material feeder having a lock mechanism capable of easily locking an inner cylinder.

[0015]

In order to achieve the above object, the present invention provides a powdery material supply case in which an outer cylinder is erected on a bottom plate, and an inner cylinder is provided above the bottom plate via a powdery material discharge gap. Supporting the cylinder, providing a through hole at the center of the bottom plate, forming a rotating body by providing a plurality of spokes located on the bottom plate on an upright rotating shaft passing through the through hole, and capping the upper portion of the rotating shaft. A particle formed by forming the annular passage between the inner and outer cylinders by bringing the cylindrical outer edge of the rotating body close to the inner periphery of the outer cylinder, and forming the granular material discharged from the granular material discharge gap into the annular passage; In the powder / particle feeder discharged from the body discharge port, the powder / particle feeder is characterized in that the cap is provided with an agitator made of a plate-like member projecting outward from an outer peripheral surface of the cap. Things.

Further, it is preferable that the agitator is formed by a plate-like member protruding in a radial direction from an outer peripheral surface of the cap, and the plate-like member has an upward surface inclined toward the upper side of the cap. .

Further, the spokes for supporting the cylindrical outer edge of the rotating body may be formed in a curved shape.

Further, it is also possible to adopt a configuration in which the thickness of the edge in the traveling direction of the spoke is reduced along the traveling direction.

Further, in the support base for supporting the outer cylinder,
A water receiving tray positioned around the upright rotating shaft, wherein the tray can be divided into two parts with the rotating shaft interposed therebetween, and the tray supporting legs divided on a support plate of the support base; Can be provided.

In addition, opposing guide grooves are formed on both outer sides of the powdery material discharge port, and an interval between groove bottoms of both grooves is larger than an insertion width of a groove insertion flange provided at one end of the discharge cylinder. An interval between the inlets is smaller than the insertion width, and a contact surface between one of the guide grooves and the flange inserted therein is not a tapered surface inclined so that the groove width decreases toward the groove bottom. The width of the other guide groove is set to be larger than the thickness of the flange to be inserted therein, and the projecting plate provided at the middle of the discharge tube on the outer surface of the other guide groove faces the end plate or the bottom plate. A fastening tool for fastening can also be provided.

Further, an upward bent arm is provided on a side surface of the powdery material supply case, and a tip of a lateral arm provided on a lid for closing an upper end opening of the case is pivotally supported on an upper end of the bent arm by a horizontal shaft. The lid is opened about the horizontal axis, a slidable knob is fitted into a small-diameter through hole formed in the base of the bent arm, and the upright receiving plate is attached to the tip of the knob by the bent arm. The horizontal shaft is provided with a downward stopper on the inside thereof, and the stopper is supported on the upper end of the upright receiving plate by the rotation of the horizontal shaft and the sliding of the knob. It may be configured to have a lock mechanism.

[0022]

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. First, the basic configuration of the powder and granular material feeder of the present invention will be described with reference to FIG.
As shown in FIG. 1, a concentric inner cylinder 2 is disposed inside an outer cylinder 1 (bottomed outer cylinder) having a bottom plate 1 ′, and a granular material 3 is placed between the lower end of the inner cylinder 2 and the bottom plate 1 ′. The donut-shaped lid 4 provided on the outer periphery of the inner cylinder 2 is supported on the upper end of the outer cylinder 1 with the discharge gap t interposed therebetween to close the donut-shaped upper end opening 1 ″ of the outer cylinder 1, and While maintaining the gap t, the inner and outer cylinders 1,
An annular passage 5 for the discharged powder is formed between the two, and a discharge port 6 is formed in the passage 5. Then, the base 8b of the rotary blade 8 arranged along the upper surface 1a of the bottom plate is fixed to the upper end of the upright rotary shaft 7 protruding from the center of the bottom plate 1 'to fix the powder feeder F.
(See FIG. 2), and the bottomed outer cylinder 1 is used as a powdery material supply case.

As shown in FIG. 2, the rotary blade 8 is constituted by four curved spokes 8a extending from a base 8b toward the inner periphery of the outer cylinder 1. A rotating ring (cylindrical outer edge) 9 is provided along the circumference.
The rotating ring 9 is provided with twelve inward rotating blades 10 at the same height as the spokes 8a toward the inner cylinder 2 direction.

The powder 3 is accommodated in the inner cylinder 2 and spreads toward the annular passage 5 from the gap t toward the annular passage 5 at a predetermined angle of repose q toward the annular passage 5. By driving the upright rotary shaft 7 in the direction of the arrow A, the curved spokes 8a and the inward rotating blades 10 rotate in the direction of the arrow A within the granular material 3, and the powder 3 in the inner cylinder 2 passes through the rotary passage 5 The powder 3 is discharged to the outside through the discharge port 6. Each spoke 8a of the rotary blade 8 has its tip (rotary ring 9 side) with respect to the rotational direction (arrow A direction).
Has a curved portion 8a ′ curved so as to gradually recede in a direction opposite to the rotation direction (counter-rotation direction) so as to intersect with the diametric direction in a curved manner, and has a curved shape as a whole. ing. The curved spokes 8a perform a function of semi-forcibly sending the granular material to the outer peripheral portion (annular passage 5) side by the rotation. According to the curved spokes 8a, when the spokes 8a rotate in the direction of arrow A, the force for sending out the powder 3 in the inner cylinder 2 in the direction of the annular passage 5 becomes larger than that of the straight spokes. Even if the amount of the powder 3 becomes small, the powder can be discharged more stably. An edge 8a ″ of the curved spoke 8a on the rotation direction A side (progression direction side) is formed along the rotation direction (progression direction) A as shown in the cross section in FIG. The thickness is reduced in the direction of the portion 8a ", and the tapered surface 11 is formed. Various shapes of the inclination angle of the tapered surface 11 are conceivable as shown in FIG. 3 depending on the properties of the granular material, the load on the blade, the supply amount, and the like. For example, in the case of a powder having a small resistance, the powder may be provided at right angles to the powder in the rotating direction (progressing direction) as shown in FIG. Further, in the case of a granular material having a large resistance, the load on the spoke 8 is reduced by forming the large tapered surface 11 (FIG. 3B), and the amount of powder supplied (discharged)
Can be prevented from becoming unnecessarily large.

The load can be reduced by reducing the thickness T of the curved spokes 8 by utilizing the fact that the curved spokes 8 increase the supply amount more than the straight spokes. By combining these, it is possible to select a more efficient blade shape at lower cost and reduce the total cost.

Next, the agitator will be described with reference to FIGS. On the base 8b of the rotating blade 8, FIG.
As shown in (c), the boss 12 is connected, and a cap 13 having a cylindrical base portion 13a and a conical portion 13b is connected and fixed on the boss 12. On the outer peripheral side surface of the cap 13, there is provided an agitator 14 having a substantially S-shape in plan view, which is made of a plate-like member protruding outward from the outer peripheral side surface (see FIG. 4A). Such an agitator 14
Is formed to extend upward from the symmetrical position along the center line a of the cylindrical base 13a along the outer peripheral side surface of the base 13a at a constant width T 'while bending in opposite directions to each other. The curved plate portions 14a, 14a 'and the first curved plate portions 14a, 14a' are connected to each other along the side surface of the conical portion 13b at a constant width T 'toward the apex of the conical portion 13b. The second curved plate portions 14b and 14b 'are formed by extending the second curved plate portions 14b and 14b' while bending in the opposite direction.
Are connected at the same height, and the center b ′ is connected to the conical portion 13b.
At the center position b. That is, the agitator 1
Numeral 4 has a spiral shape as a whole from the outer peripheral surface of the cap 13 to the vertex, and has an upwardly facing surface 14a "that is inclined upwardly of the cap 13.

The agitator 14 is in a state in which a bridge B from the inner peripheral surface of the inner cylinder 2 to the cap 13 is formed due to the surrounding environment such as high humidity of the granular material 3 (FIG. 1). The powder 3 on the cap 13 is first and second curved plate portions 14a, 14a 'and 14b, 1
4b ', while being pushed up by the upward surface 14a ", it breaks and acts to prevent the occurrence of the bridge B. That is, when the cap 13 rotates with the rotation of the rotating shaft 7, the cap 13 A twisting action is applied to the powder 3 in the rotational direction and in the upward direction, and the powder 3 becomes the first and second particles.
Of the curved plate portions 14a, 14a 'and 14b, 14b' are pushed upward while rotating by the upward surface 14a ",
Thereby, the granular material 3 is broken before the bridge B occurs, and the occurrence of the bridge B is prevented.

FIG. 5 shows another embodiment of the agitator, in which the cylindrical base 1 of the cap 13 is provided.
An agitator 14 comprising a flat plate portion 14 'projecting vertically upward along a center line e with a constant width T from the outer peripheral surfaces of the conical portion 3a and the conical portion 13b is provided. The entire agitator is a flat plate having no curved portion, and the powder 3 on the cap 13 is twisted in the rotational direction with the rotation of the cap 13, so that the flat plate 14 ' The purpose of this is to prevent the generation of the bridge B by breaking the granular material on the cap 13.

The height (width T) of the agitator 14 is changed depending on the physical properties of the granular material. The one in which the bridge B easily occurs is high (the width T is large), and the one in which the bridge B hardly occurs. Is formed low (small width T).

Next, the divided tray will be described with reference to FIGS. FIG. 6 shows a water receiving tray 15 of the powder and granular material feeder of the present application. As shown in FIG. 7, the tray 15 is a substantially square box-shaped upper surface opening tray, which is located on the periphery of the rotary shaft 7. The trays 17 and 17 ′ are divided into two right and left parts around the semi-cylindrical parts 16 and 16 ′. One of the divided trays 17 has walls 17a to 17c on three peripheral edges thereof. The semi-cylindrical portion 16 is formed slightly higher than the walls 17a and 17c. The connecting walls 17d and 17d 'between the other divided tray 17'
The wall 17a, 17c is formed at a height of about 1/2 of the height of the wall 17a, 17c in order to form a connection portion with the wall.

The other divided tray 17 'has walls 17a' to 17c 'on its three peripheral edges, and
6 ′ is a wall 17 so that the upper end position thereof becomes the same height as the semi-cylindrical portion 16 at the time of connection with the split tray 17.
a ', 17c', and no wall exists between the semi-cylindrical portion 16 'and the walls 17a', 17c '.
18 'are formed. Therefore, the split tray 1
The semi-cylindrical portions 16, 16 'and the opposing wall 17 are engaged by engaging the connection pieces 18, 18' of 7 'so as to cover the upper edges of the connection walls 17d, 17d' of the split tray 17.
a and 17a ', 17c and 17c' are connected at the same height.

A water discharge port 20 is formed in the bottom plate 19 of the split tray 17 and a discharge pipe 21 is further connected downward. A support leg 22 having a concave portion 22a at its tip is provided downward on the center line d near the wall 17b on the bottom plate 19, and a pair of support legs 23, 23 is provided at symmetrical positions near the walls 17a, 17c. 'Is provided downward. A support leg 25 having a concave portion 25a at the end on the center line d near the wall 17b 'is provided on the bottom plate 24 of the split tray 17'. On the other hand, positioning pins (positioning members) 28 and 29 are provided upright on the support plate 27 of the base 26 on which the tray 15 is installed, corresponding to the installation positions of the support legs 22 and 25. Position regulation guide plates 30, 30 'are provided corresponding to the installation positions of the legs 23, 23', respectively.

Therefore, when installing the tray 15, first, the support legs 23, 23 'of the divided tray 17 are placed on the plate surfaces 30 of the positioning guide plates (positioning members) 30, 30'.
a, 30a 'is inserted to the innermost position where it abuts, and then the concave portion 22a of the support leg 22 is placed so as to engage with the positioning pin 28 on the support plate 27. At this time, the divided tray 17 is positioned by the positioning pins 28 and is restricted in position in the direction of the rotating shaft 7 by the positioning guide plates 30 and 30 ', so that the divided tray 17 can be reliably installed at a predetermined position. At this time, the discharge pipe 21 is connected to the water distribution pipe 31 in the drive unit 32.

Thereafter, the connecting piece 1 of the other divided tray 17 '
8 and 18 ′ are connected to the connecting walls 17 of the other divided tray 17.
d, 17d 'so as to cover the upper edge,
By engaging the recess 25 a of the support leg 25 with the positioning pin 29 on the support plate 27, the split tray 17 ′ is installed in a state where the position is regulated by the positioning pin 29.
As a result, the split tray 17 and the split tray 17 'are connected while being positioned together. When removing, it is possible to easily remove by performing the reverse operation.

During cleaning or the like, water leaking into the base 26 from between the output shaft 7 and the bottom plate 1 'falls onto the divided trays 17, 17' via the umbrella-shaped guide plate 7a, and is separated from the divided trays 17 and 17 '. Tray 17
The water droplets that have fallen on the tray 17 ′ are discharged from the discharge port 20.
Flows through the connection portion (connecting pieces 18 and 18 ′) of both trays to the bottom plate 19 of the divided tray 17, and is discharged from the discharge port 20. The discharged water is discharged into a drain pipe 21 and a drain pipe 31.
Is discharged through.

The mounting and dismounting of the water receiving tray 15 having such a configuration does not require the use of mounting bolts and the like, so that the water receiving tray 15 can be easily installed and disassembled without requiring tools. Next, a locking mechanism of the donut-shaped lid 4 will be described with reference to FIGS.

The donut-shaped lid 4 is provided with a lateral arm 4 ′ (see FIG. 13), and the tip of the lateral arm 4 ′ may be an upward bending arm 33 (an upward bending arm) provided on the outer surface of the bottomed outer cylinder 1. The upper end opening 1 ″ can be opened and closed by pivotally supporting the upper end portion of the upper case 1) by a horizontal shaft 34, and rotating the lid 4 and the inner cylinder 2 in the direction of arrow C and in the opposite direction about the horizontal shaft 34. .

At the base of the upward bent arm 33, a small-diameter through hole 3 is formed.
5, a knob 36 is slidably fitted into the through hole 35 from the outside to the inside of the bent arm 33, an upright receiving plate 37 is provided at the tip (inner end) of the knob 36, and A lower guide horizontal plate 38 of the receiving plate 37 is provided on the outer cylinder 1 side.

The horizontal shaft 34 is provided with a downward stopper 39 inside the bent arm 33. When the lid 4 and the horizontal arm 4 'are opened in the direction of arrow C, the knob 36 is slid to the left in FIG. (FIG. 14 shows this state). After stopping the rotation in the direction of arrow C by contacting the tip of the horizontal arm 4 ′ with the upper end of the upward stopper 40 shown in FIGS. 14 and 18, the knob 36 and the upright receiving plate 37
Is slid from the position shown in FIG. 14 to the position shown in FIG. 17 to support the downward stopper 39 provided on the horizontal shaft 34 at the upper end of the receiving plate 37. In this state, the inner cylinder 2, the lid 4 and the horizontal The arm 4 ′ is locked in the state shown in FIG. 16 and holds the state where the upper end of the outer cylinder 1 is opened.

Of course, the knob 36 and the upright receiving plate 37 are
The lock is released by sliding from the position shown in FIG. 14 to the position shown in FIG. 14, and the inner cylinder 2, the lid 4 and the lateral arm 4 'are turned in the direction opposite to the arrow C as shown by the solid lines in FIGS. The outer cylinder 1 is moved back to the original position, and the upper end opening 1 ″ of the outer cylinder 1 can be closed.

The base 36 'of the knob 36 is
3 slides in a horizontal cylinder (guide cylinder 41) provided on the outer surface of the knob 3, and the base 3 of the knob 36 is at a position in a locked state (supported state) by the upward and downward stoppers 39 and 40.
An engagement device 42 for stopping the sliding of the knob 36 is provided at a position where the sliding of 6 'stops.

14 and FIG.
As shown in FIG. 7, an annular groove 43 is formed in a large-diameter portion (base portion 36 ′) of the knob 36 slidably fitted in the cylinder 41 and provided in a hollow screw 44 screwed into the cylinder 41. The position is held by a small ball 45 pressed into the annular groove 43 by a coil spring. The coil spring is supported in a hollow screw 44 screwed into the small screw hole from outside. 14 and 17, a second annular groove 43 'is formed outside the annular groove 43, and FIG.
As shown in FIG. 4, the upright receiving plate 37 is formed so as to be held by the small ball 45 in a state where the upright receiving plate 37 is removed from the downward stopper 39.

Therefore, the small ball 45 is inserted into the second annular groove 43 '.
, The upright receiving plate 37 is slid to the position shown in FIG. 14 and stopped at that position, whereby the inner cylinder 2 and the donut-shaped lid 4 are moved as shown by the solid lines in FIG. 1, FIG. 13 and FIG. The upper end opening 1 ″ of the outer cylinder 1 can be closed.

The reference numeral 46 in FIG.
In FIG. 20, reference numeral 49 denotes a powder / particle discharge chute provided at the discharge port 6.

Next, the structure of the powder discharge chute will be described with reference to FIGS. As shown in FIG. 21, opposing guide grooves 50 and 50 'are formed on both outer sides of the discharge port 6 of the outer cylinder 1 on the lower surface of the bottom plate 1'. The groove 50,
The distance W between the groove bottoms 50 ″, 50 ″ of 50 ′ is
It is larger than the insertion width w of the groove insertion flanges 51, 51 'provided at one end of the discharge cylinder 49 guided to be inserted into 50' and smaller than the interval w 'between the groove entrances.

The contact surfaces 52, 52 'of the one guide groove 50 and the flange 51 inserted into the groove 50 are directed upward (the groove width t' is small) toward one groove bottom 50 ". And the other guide groove 5
0 'groove width t' is inserted into the flange 51 '
(See FIG. 22).

Further, a projecting plate 53 provided in the middle of the discharge cylinder 49 on the outer surface (the lower surface in the figure) of the other guide groove 50 'is tightened toward the other guide groove 50' (toward the bottom plate 1 '). An attachment 54 is provided. This fastener 54 is used for the other guide groove 5.
Bearing plates 55, 55 protruding from the outer surface (lower surface in the figure) of 0 ′
The boss portion of the bolt 57 is pivotally supported by the pivot shaft 56 (horizontal pin) therebetween, and the bolt 57 can be rotated around the pivot shaft 56. A nut 58 provided with a wing nut or a ring is screwed into the bolt 57, and the bolt 57 is inserted between U-shaped notches 59 formed at the tip of the protruding plate 53, and the nut 58 is rotated. The protruding plate 53 is tightened toward the guide groove 50 ′ (toward the bottom plate 1 ′) by forward rotation of the nut 58, and loosened by reverse rotation to rotate and separate the bolt 57 to the outside of the U-shaped notch 59. can do.

As shown in FIG. 23, both (left and right) flanges 51, 51 'provided at one end (upper end in the figure) of the independent discharge cylinder 49 are inserted into the left and right guide grooves 50, 50'. When the discharge cylinder 49 is moved to one side (left side), the one (left side) flange 51 rises along the contact surface 52 on the groove 50 side with the contact surfaces 52 and 52 ′ in contact with each other, and the flange 51 Is in close contact with the lower surface of the bottom plate 1 '. In this state, the upper surface of the other (right) flange 51 'is also the bottom plate 1'.
, But the contact state is not supported.

Then, when the fastener 54 is rotated in the vertical direction, the bolt 57 is brought into contact with the U-shaped notch 59 of the projecting plate 53.
, The nut 58 is rotated forward in this state, and the lower surface of the protruding plate 53 can be tightened upward by the nut 58, and the right flange 5
In addition to supporting (pressing) the 1 ′ on the lower surface of the bottom plate 1 ′, the flanges 51a, 51
b (FIGS. 26 (a) and 27 (a)) and the upper end surface 49 'of the discharge tube 49 (FIG. 28 (a)) are connected to the left and right flanges 51 and 5 respectively.
Along with 1 ′, it can be in close contact or pressure contact with the lower surface of the bottom plate 1 ′.

The tightening is loosened by the reverse rotation of the nut 58. In this state, the bolt 57 is rotated outward about the pivot shaft 56 to remove it from the U-shaped notch 59, and the discharge cylinder 49 is slid forward. The discharge cylinder 49 can be separated from the bottom plate 1 'by moving the flanges 51, 51' from the guide grooves 50, 50 '.

The discharge cylinder 49 is a square cylinder as shown in FIGS. 21, 22 and 23, a deformed trapezoid cylinder as shown in FIGS. 24, 25 and 26 (b), and an upper end as shown in FIG. It can be a rectangular cylinder with a circular lower end, or an inclined circular cylinder as shown in FIG.

Reference numeral 51 "in the figure denotes a lower end flange of the discharge cylinder 49 (discharge chute), 60 denotes a closed lock device, 47 denotes a speed reducer, 48 denotes a drive motor, and FIG.
The middle 61 is a cylinder that moves the lid 4 up and down.

With respect to the present invention, the following items are further disclosed. 1. An agitator composed of a pair of plate-like members protruding outward from a symmetrical position on the outer peripheral side surface of the cap is provided, and the plate-like members are formed by spiral curved plates curved in opposite directions toward the upper side of the cap. A powder material supply machine characterized by the above-mentioned. 2. A first curved plate portion provided with an agitator made of a pair of plate-like members protruding outward from a symmetrical position on the outer peripheral side surface of the cap, and each plate-like member curved in the opposite direction toward the upper side of the cap; A powder and granular material feeder comprising a second curved plate portion extending from the first curved plate portion toward the center of the cap and joined at the center of the cap. 3. The agitator has an upwardly inclined surface facing upward.

[0054]

As described above, according to the present invention, even when there is a change in the surrounding environment due to the action of the agitator, bridging is unlikely to occur, and stable supply of powder and granules becomes possible.

Further, the force of sending out to the outer peripheral portion (annular passage) is strengthened by the action of the curved spokes, so that the powder can be discharged stably even when the volume of the powder in the hopper is small, and the whole amount can be discharged in a short time. Becomes possible.

Further, the water collecting mechanism can be easily disassembled and cleaned, which can be easily attached and detached in a short time without using a tool.

The knob is bent when the lid for closing the upper end opening of the granular material supply case or the bottomed outer cylinder and the inner cylinder provided on the lid are opened to the upward stopper about the horizontal axis. Only by sliding outside the arm, the downward stopper provided on the horizontal shaft is supported on the upper surface of the upright stopper plate, the lid and cylinder cannot be closed, the state is locked simply and quickly and safely, and the knob is There is an effect that the case can be easily closed only by sliding inward. Further, the state in which the lid and the like are opened from the case is safely held by the engagement device for stopping the sliding of the knob, and accidental closing is prevented.

In addition, the discharge cylinder (discharge chute) is easily and quickly removed from the discharge port of the body handling the powder and granular material with a fastener, so that the adhered powder and particles can be easily cleaned, and the discharge port of the machine body can be easily removed. There is an effect that a high sealing property with the discharge cylinder (discharge chute) can be provided.

[Brief description of the drawings]

FIG. 1 is a vertical sectional front view of a granular material feeder of the present invention.

FIG. 2 is a plan view of the same feeder.

3B is a cross-sectional view taken along the line XX of FIG. 2 and shows a cross-sectional view of the rotating spoke. FIGS. 3A and 3C are cross-sectional views showing other embodiments.

4A is a plan view of the cap, FIG. 4B is a side view of the cap, and FIG. 4C is a front view of the cap.

FIG. 5 shows another embodiment of the cap.
(A) is a plan view of the cap, (B) is a side view of the cap,
(C) is a front view of the cap.

FIG. 6 is a cross-sectional view showing a water receiving tray of the powder and granular material feeder, in the vicinity of an upright rotating shaft of the feeder.

FIG. 7 is a vertical cross-sectional view showing the vicinity of a water receiving tray of the supply device.

8A is a plan view showing the vicinity of a positioning guide plate of the water receiving tray, and FIG. 8B is a side view showing the vicinity of the guide plate.

FIG. 9 is a plan view of a water receiving tray divided into two parts.

FIG. 10A is a side view of a water receiving tray divided into two parts.
(B) is a sectional view taken along line YY of FIG. 9.

FIG. 11 is a partially sectional side view showing an engagement relationship between a support leg of the tray and a positioning pin.

FIG. 12 is a perspective view of the same tray.

FIG. 13 is a partially enlarged longitudinal sectional view of the lock mechanism in FIG. 1;

FIG. 14 is an enlarged view of the lock mechanism taken along the line EE of FIG. 13;

FIG. 15A is a perspective view of an upward bending arm. (B) is an exploded perspective view of the slidable knob.

FIG. 16 is an enlarged vertical sectional view of the locked state along the line DD in FIG. 14;

FIG. 17 is a longitudinal sectional view taken along the line GG of FIG. 16;

FIG. 18 is a longitudinal sectional view taken along the line HH of FIG. 14;

FIG. 19 is an overall side view of FIG. 1 as viewed from the right side.

FIG. 20 is an overall front view of FIG. 1;

FIG. 21 is an overall side view of FIG. 1 as viewed from the left side, showing a powder discharge chute.

FIG. 22 is a front view of a state where a discharge port and a discharge tube are separated.

FIG. 23 is a longitudinal sectional front view of a state where a discharge port and a discharge tube are combined.

FIG. 24 is a front view of the powder feeder according to the present invention, which is a view in which a modified trapezoidal cylinder is used as a discharge cylinder.

25 is an enlarged side view of a part of FIG. 24 in which the discharge cylinder is separated.

FIG. 26A is a plan view of one end flange of the discharge cylinder,
(B) is a side view of the discharge cylinder, and (c) is a bottom view of the other end flange.

FIG. 27A is a plan view of one end flange of the discharge cylinder,
(B) is a side view of the discharge cylinder, and (c) is a bottom view of the other end flange.

28A is a plan view of one end face and one end flange of the discharge cylinder, FIG. 28B is a side view of the discharge cylinder, and FIG. 28C is a bottom view of the other end flange.

FIG. 29 is a vertical cross-sectional view of a powder feeder, showing a conventional granular material supply machine.

FIG. 30 is a vertical cross-sectional view showing a conventional granular material supply machine and showing a water receiving tray near an output shaft of a powder feeder.

FIG. 31 is a plan view of a conventional powder feeder having straight spokes.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Outer cylinder 1 'Bottom plate 1 "Upper end opening part 2 Inner cylinder 3 Granular material 4 Donut-shaped lid 4' Lateral arm 5 Annular passage 6 Granular material discharge port 7 Upright rotation shaft 8 Rotating blade 8a Curved spoke 8a 'Curved portion 8a "Edge 13 Cap 14 Agitator 14a" Upward surface 15 Water receiving tray 17, 17 'Split tray 22, 23, 23', 25 Support leg 26 Support base 27 Support plate 28, 29 Positioning pin 30, 30 'Positioning plate 33 upward bent plate 34 horizontal axis 35 small diameter through hole 36 slidable knob 37 upright receiving plate 39 downward stopper 49 discharge cylinder 50, 50 'opposed guide groove 51, 51' groove insertion flange 54 fastening tool

Claims (7)

[Claims] 1. An outer cylinder is erected on a bottom plate to form a powdery material supply case, an inner cylinder is supported above the bottom plate via a powdery material discharge gap, and a through hole is provided at the center of the bottom plate. A plurality of spokes located on the bottom plate are provided on an upright rotating shaft penetrating the through hole to form a rotating body, and a cap is provided above the rotating shaft. Forming an annular passage between the inner and outer cylinders in close proximity to each other, wherein the granular material discharged from the granular material discharge gap is discharged from a granular material discharge port formed in the annular passage; A powder and granular material feeder, wherein an agitator made of a plate-like member protruding outward from an outer peripheral surface of the cap is provided on the cap. 2. The powder and granular material feeder according to claim 1, wherein the plate-like member has an upward surface inclined toward the upper side of the cap. 3. The powder and granular material feeder according to claim 1, wherein the spokes supporting the cylindrical outer edge of the rotating body have a curved shape. 4. The powder and granular material feeder according to claim 1, wherein a thickness of the spoke in the traveling direction is reduced along the traveling direction. 5. A water receiving tray located around the upright rotary shaft is provided in a support base supporting the outer cylinder, and the tray is configured to be divided into two with the rotary shaft interposed therebetween, and The powdery and granular material supply machine according to any one of claims 1 to 4, wherein a positioning member for each of the tray support legs divided on the support plate of the support base is provided. 6. An opposing guide groove is formed on both outer sides of the powder and granular material discharge port, and an interval between the groove bottoms of both the grooves is larger than an insertion width of a groove insertion flange provided at one end of the discharge cylinder. An interval between the inlets is smaller than the insertion width, and a contact surface between one of the guide grooves and the flange inserted therein is not a tapered surface inclined so that the groove width decreases toward the groove bottom. The width of the other guide groove is set to be larger than the thickness of the flange to be inserted therein, and the projecting plate provided at the middle of the discharge tube on the outer surface of the other guide groove faces the end plate or the bottom plate. The powder and granular material feeder according to any one of claims 1 to 5, further comprising a powder and granular chute provided with a tightening tool. 7. An upwardly bent arm is provided on a side surface of the powdery material supply case, and a tip of a lateral arm provided on a lid for closing an upper end opening of the case is pivotally supported on an upper end of the bent arm by a horizontal shaft. A lid is opened around the horizontal axis, a slidable knob is fitted into a small-diameter through hole formed in the base of the bent arm, and an upright receiving plate is attached to the tip of the knob with the bent arm. The horizontal shaft is provided with a downward stopper on the inside thereof, and the stopper is supported on the upper end of the upright receiving plate by the rotation of the horizontal shaft and the sliding of the knob. The powder supply device according to any one of claims 1 to 6, further comprising a lock mechanism.