JPH0647860Y2 - Circle feeder - Google Patents

Description

[Detailed Description of the Invention] "Industrial application field" The present invention relates to a circle feeder such as a powder or granular material.

"Prior art" In the conventional circle feeder for powders and granules, an inclined guide plate that overlaps with each other is provided on the inner surface of the gap adjusting short cylinder and the outer surface of the fixed inner cylinder, and the short cylinder is fixed with a handle protruding. By inserting a finger or hand through the window opened in the outer cylinder and rotating the handle left and right, the short cylinder is screwed up and down along the inclined guide plate to adjust the gap immediately below the short cylinder. It was (Actual public Sho 58
-23795). However, in order to rotate the handle to the left and right and screw the short cylinder around the inner cylinder, not only a large force is required, but also the short cylinder is biased in the rotating direction and pressed against the fixed inner cylinder to add frictional resistance. It is difficult to manually screw the short tube up and down. Therefore, the upper flange of the short cylinder and the upper flange of the fixed outer cylinder were connected with three adjusting bolts, and the bolts were rotated to raise and lower the short cylinder to adjust the gap. However, there is a problem that it takes time to adjust and it is difficult to rotate the three adjusting bolts at the same time, which requires labor and skill. This is a big problem especially for large circle feeders with a large diameter.

[Problems to be solved by the invention] The present invention smoothly adjusts the gap by simply screwing up and down the short cylinder for adjusting the gap by simply rotating the forward / reverse rotation device from the outside of the fixed outer cylinder in the forward and reverse directions. The purpose is to get the circle feeder.

[Means for Solving the Problems] In order to achieve the above-mentioned object, the present proposal is to provide a machine frame with a vertically open inner cylinder and a bottomed outer cylinder that share an upright centerline, and the inner surface of the outer cylinder and the outer surface of the inner cylinder. An annular passage is formed between the inner cylinder and the bottom plate of the outer cylinder, and the gap is adjustable along the outer peripheral surface of the inner cylinder. A plurality of arms that rotate along the bottom plate on a rotary shaft that shares the upright centerline and that supports a ring that connects the tips of the arms along the inner surface of the outer cylinder. A plurality of scrapers projecting inward along the bottom plate are provided on the wheel, and a powder / granular feeder having an outlet formed in the passage is provided with an inclined rack along the outer surface of the adjusting short cylinder, A small gear is meshed with the rack, and the horizontal rotation shaft of the small gear is supported by the outer cylinder. And a plurality of inclined guide guides provided along the outer surface of the short cylinder, horizontal guide rollers supporting the lower surfaces of the guides, and the outer surface of the short cylinder. A circle feeder in which a plurality of tilt guide rollers tilting in the ascending and descending screw direction are supported by the outer cylinder. A horizontal shaft of the horizontal guide roller is provided with a branch shaft orthogonal to the above tilt guide guide, and the tilt guide is provided on the branch shaft. It is constituted by the circle feeder provided with the above-mentioned device.

"Operation" Therefore, when the forward / reverse rotation device 6 is rotated in the forward direction, the horizontal rotation shaft 4 causes the small gear 3 to rotate in the direction of arrow a (forward direction) (Fig. 3). Therefore, the inclined rack 2 that meshes with this
Moves in the upward screwing direction b of the short cylinder 1 and raises the short cylinder 1 to enlarge and adjust the gap t between the cylinder 1 and the bottom plate 5 '. At this time, the short cylinder 1 is pushed rightward in FIG. 3 by the pressing force due to the rotation of the small gear 3, the short cylinder 1 is biased to the upper and left parts in FIG. 2, and the lower cylinder 1 is crimped to the inner cylinder 12. However, the short cylinder 1 is prevented by the inclined guide rollers 9 and 9 at the upper and left portions of FIG. 2 and is not biased to the upper and left portions of the same FIG. 2 and the horizontal guide rollers 8, 8 and 8 are inclined. With the lower surfaces of the guides 7, 7, 7 supported, the short cylinder 1 does not come into contact with the inner cylinder 12 and ascends in the upward screwing direction b, and the gap t between the cylinder 1 and the bottom plate 5 '.
To expand. The forward / reverse rotation device 6 is rotated in the reverse direction (arrow a).
The rack 2 is moved to the left (arrow b ') in FIG. 3 by rotating it in the opposite direction), and the short cylinder 1 is pushed to the lower and left parts in FIG. ,
9 and the lower surfaces of the inclined guide guides 77, 7 are supported by the horizontal guide rollers 8, 8, 8 so that the short cylinder 1 descends and the gap t between the cylinder 1 and the bottom plate 5'can be reduced. .

"Embodiment" A vertically open inner cylinder 12 that shares an upright centerline c of the hopper 13 on a machine frame 14 provided at the lower end of the powder and granular material supply hopper 13 and a bottomed outer cylinder that shares the centerline c on its outer circumference. Fix 5 An annular passage 15 for the granular material is formed between the inner surface of the outer cylinder 5 and the outer surface of the inner cylinder 12, and between the lower end of the inner cylinder 12 and the bottom plate 5'of the outer cylinder 5. A fixed gap T is formed at. Then, it supports the short tube 1 for adjusting the fixed gap T, which can be rotated up and down (screwed) along the outer peripheral surface of the inner tube 12. Further, the upright rotary shaft 16 sharing the upright centerline c is projected onto the bottom plate 5 ', and the plurality of arms 1 which are rotated along the bottom plate 5'at the projecting portions.
7 and 17 are provided, and a ring 18 for connecting the ends of the arms 17 and 17 is provided in the passage 15 along the inner surface of the outer cylinder 5, and a plurality of wheels 18 are provided inwardly along the bottom plate 5 ′. Small scrapers 19 of No. 3 are projected at equal intervals (Fig. 2). A discharge port 20 for the granular material is provided in the passage 15 to form a circle feeder for the granular material. The adjusting short cylinder 1 is provided with an inclined rack 2 along its outer surface in a spiral direction. A small gear 3 is meshed with the rack 2 and a horizontal rotary shaft 4 thereof is provided on the outer cylinder 5. A forward / reverse rotation device 6 is provided which penetrates the bearing 21 and is externally provided with a manual handle 6 '. In addition, the short cylinder 1
As shown in FIG. 2 and FIG.
Individual) inclined guide guides 7, 7, 7 are provided in a spiral shape, and the inclined lower surfaces of the guide guides 7, 7, 7 are each provided with a horizontal axis 10.
The horizontal shaft 10 is supported by a horizontal guide roller 8 provided on the outer cylinder 5.
It is fixed by a mounting pipe 22 to. Further, the horizontal shaft 10 is provided with a downward branch shaft 11 which is orthogonal to the tilt guide 7, and a tilt guide roller 9 is supported by the branch shaft 11 so that the roller 9 faces the outer surface of the short cylinder 1. The inclination direction of the roller 9 is the vertical screwing direction b, b '(helical direction) of the short tube 1. The reference numeral 23 in the figure denotes a drive speed change motor, 24 is a wheel adjuster provided on the output shaft 25 of the motor 23, 26 is an input wheel adjuster for the upright rotary shaft 16, and 27 is both wheel adjusters 24, 26. Endless belt, 28
Is a lock of the handle 6 '.

"Effect of the Invention" Since the present invention is configured as described above, in the circle feeder of the above-mentioned powdery particles, the forward / reverse rotation device 6 provided on the outer side of the outer cylinder 5 is simply rotated in the forward / reverse direction to obtain the short cylinder 1 And bottom plate 5 '
The short cylinder 1 for adjusting the clearance t between the inner cylinder 12 and the inner cylinder 12
The clearance t can be raised and lowered extremely smoothly without any frictional resistance with respect to the above, and the gap t can be easily adjusted by one person. The inner and outer cylinders 5 and 12 and the short cylinder 1 having a particularly large diameter
The above effect is great in a large circle feeder consisting of.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view showing a circle feeder of the present invention, and FIG.
The figure is a plan view taken along the line A-A in FIG. 1, and FIG. 3 is the line B- in FIG.
FIG. 4 is a development view taken along the line B, and FIG. 4 is a development view taken along the line C-C in FIG. 1 ... short cylinder for adjustment, 2 ... inclined rack, 3 ... small gear,
4 ... Horizontal rotation axis, 5 ... Outer cylinder with bottom, 6 ... Forward / reverse rotation device, 7 ... Inclination guide guide, 8 ... Horizontal guide roller,
b, b '... Elevating screwing direction, 9 ... Inclined guide roller, 10
…… Horizontal axis, 11 …… Branching axis.

Claims (2)

[Scope of utility model registration request] 1. A machine frame is provided with upper and lower opening inner cylinders and a bottomed outer cylinder that share an upright centerline, and an annular passage is formed between the inner surface of the outer cylinder and the outer surface of the inner cylinder. A gap is interposed between the lower end of the inner cylinder and the bottom plate of the outer cylinder, and supports the short cylinder for adjusting the gap that can be rotated up and down along the outer peripheral surface of the inner cylinder,
A plurality of arms that rotate along the bottom plate are provided on a rotating shaft that shares the upright centerline, and a ring that connects the tips of the arms is provided along the inner surface of the outer cylinder, and the ring is provided along the bottom plate. A plurality of scrapers projecting inwardly and a discharge port is formed in the passage, a slanted rack is provided along the outer surface of the adjustment short cylinder, and a small gear is meshed with the rack. A horizontal rotation shaft of the pinion gear is supported by the outer cylinder, a forward / reverse rotation device for the horizontal rotation shaft is provided, and a plurality of inclined guide guides are provided along the outer surface of the short cylinder. A circle feeder in which a horizontal guide roller that supports the lower surface of each of the above and a plurality of inclined guide rollers that face the outer surface of the short cylinder and that are inclined in the vertical screwing direction of the short cylinder are supported by the outer cylinder. 2. A circle feeder according to claim 1, wherein a horizontal shaft of the horizontal guide roller is provided with a branch shaft orthogonal to the inclined guide guide, and the branched shaft is provided with an inclined guide roller.