CN111071648B

CN111071648B - Storage device for powder material

Info

Publication number: CN111071648B
Application number: CN201910812489.5A
Authority: CN
Inventors: 川上一
Original assignee: Matsui Universal Joint Manufacturing Co
Current assignee: Matsui Universal Joint Manufacturing Co
Priority date: 2018-10-22
Filing date: 2019-08-30
Publication date: 2022-12-20
Anticipated expiration: 2039-08-30
Also published as: JP7201989B2; JP2020066473A; CN111071648A

Abstract

The invention provides a storage device for powder and granular material, which can effectively reduce the opening and closing space of a cover body required by the lower side of a storage container. The storage device (1) for powder material comprises: a storage container (10) which is provided with a discharge port (12) that opens downward on the lower end side and stores a powder/granular material; a lid body that opens and closes the discharge port by rotating about a support shaft (18) that is provided so as to be located above the discharge port and that extends along a substantially horizontal direction, the lid body comprising: a cover body (23) formed to be larger than the diameter of the discharge port so as to cover the discharge port; and upright wall portions (24, 25) that are formed so as to rise from both side edge portions in the pivot axis direction and an upper end side edge portion in an open state of the lid main body, are arranged so as to cover an outer periphery of a lower end portion of the storage container in a closed state, and are formed in a shape that is opened upward and toward a front end in the closing direction in the closed state, wherein the storage container is provided with a covering wall portion (15), and the covering wall portion (15) abuts against a front end surface (22) in the closing direction of the lid body in the closed state so as to cover an opening (21) in the front end in the closing direction of the lid body.

Description

Storage device for powder material

Technical Field

The present invention relates to a storage device for storing a powder material.

Background

Conventionally, a storage device is known in which a lid for opening and closing a discharge port provided at a lower end of a storage container for storing a powder or granular material is provided at the lower end.

For example, patent document 1 discloses a structure in which an opening/closing cover is provided at a material discharge port formed at a lower end of a weighing hopper. The opening/closing cover is supported by an arm-shaped support portion that rotates around a shaft provided on a side of the material discharge port of the weighing hopper, and the support portion is moved away from the material discharge port in an obliquely downward direction by rotating the support portion around the shaft, thereby opening the material discharge port.

Documents of the prior art

Patent document

Patent document 1: japanese laid-open patent publication No. 2009-23093

However, in the opening/closing cover described in patent document 1, further improvement is desired in consideration of the fact that the opening/closing space of the opening/closing cover required on the lower side of the weighing hopper is relatively large.

Disclosure of Invention

The present invention has been made in view of the above circumstances, and an object thereof is to provide a storage device for a powder/granular material, which can effectively reduce an opening/closing space of a lid body required on a lower side of a storage container.

In order to achieve the above object, a storage device for a powdered or granular material according to the present invention includes: a storage container provided with a discharge port opening downward on a lower end side thereof and storing the powder/granular material; a lid body that opens and closes the discharge port by rotating about a support shaft provided so as to be located above the discharge port and along a substantially horizontal direction, the lid body comprising: a cover body formed in a larger diameter shape than the discharge port so as to cover the discharge port; and an upright wall portion that is formed to be upright from both side edge portions in the pivot axis direction and an upper end side edge portion in an open state of the lid main body, and is disposed so as to cover an outer periphery of a lower end portion of the storage container in a closed state, and the lid body is formed in a shape that is opened upward and toward a front side in the closing direction in the closed state, and the storage container is provided with a covering wall portion that is brought into contact with a front end surface in the closing direction of the lid body in the closed state so as to cover an opening on the front side in the closing direction of the lid body.

The invention has the following effects:

the storage device for a powdered or granular material according to the present invention can effectively reduce the opening and closing space of the lid body required for the lower side of the storage container by adopting the above-described configuration.

Drawings

Fig. 1 is a schematic side view schematically showing an example of a storage device for powder and granular material according to an embodiment of the present invention.

Fig. 2 (a) is a schematic plan view of the storage device, and fig. 2 (b) is a schematic front view of the storage device.

Fig. 3 (a) is a schematic vertical sectional view corresponding to the X-X line in fig. 2 (a), and fig. 3 (b) is a schematic perspective view schematically showing an example of a storage container provided in the storage device.

Fig. 4 (a) is a schematic plan view schematically showing an example of a cover provided in the storage device, and fig. 4 (b) is a schematic front view of the cover.

Description of the symbols

1. Storage device for powder material

8. Driving part

10. Storage container

12. Discharge port

15. Covering wall part

18. Support shaft

20. Cover body

21. Front side opening (opening of front side of closed direction)

22. Front side end (enclosed direction front side end)

23. Cover main body

24. Back vertical wall part (vertical wall part)

25. Side wall part (vertical wall part)

27. Driven part

Detailed Description

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

In the following embodiments, the directions such as the vertical direction will be described with reference to the state where the storage device of the powdered or granular material according to the present embodiment is provided.

Fig. 1 to 4 are schematic diagrams showing an example of a storage device for a powder or granular material according to the present embodiment.

As shown in fig. 1 and 3 (a), the storage device 1 for powdered or granular material according to the present embodiment includes: a storage container 10 having a discharge port 12 opened downward at a lower end side thereof and storing a powder/granular material; and a lid 20 that opens and closes the discharge port 12 by rotating about a support shaft 18 provided above the discharge port 12 and extending in a substantially horizontal direction.

The powder material is a powder/particle material, and includes a material in the form of a fine flake, a short fiber sheet, or a strip.

The material may be a synthetic resin material such as resin particles or resin fiber sheets, a metal material, a semiconductor material, a wood material, a pharmaceutical material, a food material, or the like.

In addition, as the powder or granular material, for example, in the case of molding a synthetic resin molded article, natural materials (virgin materials), pulverized materials, colorant materials, various additive materials, and the like can be given. Further, the structure may include reinforcing fibers such as glass fibers and carbon fibers.

In the present embodiment, as shown in fig. 1, the storage device 1 is held by the housing 2 via the mass detector 6 and is disposed in the housing 2. In the present embodiment, the storage device 1 constitutes a metering device that receives and stores the powder/granular material supplied from the upstream side (upper side) of the casing 2, measures the material by the mass detector 6, and discharges the material to a supply target on the downstream side (lower side). The casing 2 may be configured as a mixing device in which a holding unit for holding a plurality of material supply containers that respectively store different powder/granular material and supply the powder/granular material to a lower side is provided on an upstream side (upper side) of the storage device 1, and a mixing tank that is provided with a stirring blade rotatably disposed on a downstream side (lower side) of the storage device 1 and mixes a plurality of powder/granular material materials so as to have a predetermined mixing ratio (mass ratio) is provided on a downstream side (lower side) of the storage device 1.

The mass detector 6 includes a load cell constituting a detection unit main body, and one end (fixed end) thereof is held by the support portion 3 protruding outward from the side peripheral wall of the housing 2, and the other end (free end) thereof is fixed to a holding portion 7 holding a storage container 10 of the storage device 1. The holding portion 7 is inserted through an insertion hole 4 provided so as to penetrate through a side peripheral wall of the housing 2, and a hook-shaped hooking portion 7a is provided at an end portion in the housing 2, and the hooking portion 7a detachably and hook-holds the storage container 10. The insertion hole 4 of the housing 2 is provided in such a manner as to allow the up-and-down movement of the holding portion 7 that moves up and down in association with the deformation of the load cell of the mass detector 6.

The mass detector 6 is not limited to the above-described structure in which the storage container 10 is held in a cantilever shape. For example, a support frame provided so as to cross the casing 2 may be provided so as to penetrate the storage container 10, a frame to be supported by the support frame may be provided in the storage container 10, and the mass detector 6 may be provided between the frame to be supported and the support frame. The support of the mass detector 6 and the storage container 10 is not limited to the above-described embodiment, and various embodiments are possible.

The supply destination of the storage device 1 is not limited to the mixing tank, and may be a storage unit that temporarily stores the powder or granular material or a drying hopper that dries the powder or granular material. Further, for example, a molding machine such as an injection molding machine may be set as a supply target of the storage device 1. The molding machine to be supplied is not limited to an injection molding machine for molding a synthetic resin molded product, and may be an injection molding machine for other materials, or may be a system in which other molding machines such as an extrusion molding machine and a compression molding machine for various materials are used as the supply target. The supply destination of the storage apparatus 1 is not limited to a single supply destination, and may be a plurality of supply destinations.

As shown in fig. 2 and 3 (a), the lid body 20 includes a lid main body 23, and the lid main body 23 is formed to have a diameter larger than that of the discharge port 12 so as to cover the discharge port 12. The lid body 20 includes standing

wall portions

24, 25, and the standing

wall portions

24, 25, and 25 are formed to stand from both side edge portions in the direction of the support shaft 18 of the lid main body 23 and an upper end side edge portion in an open state (see a two-dot chain line in fig. 1), and are arranged to cover an outer periphery of a lower end portion of the storage container 10 in a closed state, and to have a shape that is opened upward and forward in the closed state. The storage container 10 is provided with a covering wall portion 15, and the covering wall portion 15 abuts against a closing direction front end surface (front end surface) 22 of the lid body 20 in a closed state to cover a closing direction front end opening (front end opening) 21 of the lid body 20 (see fig. 4). The details of the lid 20 will be described later.

The storage container 10 is formed in a hopper shape having a cylindrical upper part and an inverted conical lower part. In the present embodiment, as shown in fig. 2 (a) and 3 (b), an example is shown in which the upper side portion of the storage container 10 is formed in a substantially rectangular tube shape having a substantially square shape in plan view, and the lower side portion of the storage container 10 is formed in a substantially inverted rectangular pyramid shape. In the figure, an example is shown in which the upper part of the storage container 10 is formed in a substantially square shape when viewed in plan.

The storage container 10 is configured to have a receiving port 11 opened upward on the upper end side. In the illustrated example, the receiving port 11 is opened over the entire upper end of the storage container 10. That is, the inlet 11 is formed in a substantially square shape as viewed from the opening direction. Since the lower portion of the storage container 10 is formed in an inverted cone shape, the opening area of the discharge port 12 on the lower end side is smaller than that of the receiving port 11. In the drawing, an example is shown in which the discharge port 12 has a substantially rectangular shape with a short side in a direction along the opening/closing direction of the lid body 20 when viewed from the opening direction. In the present embodiment, the lower end surface (opening end surface) of the storage container 10 constituting the opening peripheral edge portion of the discharge port 12 is formed in a substantially horizontal plane shape facing in a substantially downward direction in a state where the storage device 1 is installed.

As shown in fig. 1 and 2 (a), the peripheral wall portion of the storage container 10 includes a front side wall portion 14 defining a front side in the closing direction of the lid body 20, a rear side wall portion 13 defining a rear side in the closing direction, and two

side wall portions

17, 17 defining both sides in the direction of the support shaft 18. The rear wall portion 13, the front wall portion 14, and the upper portions of the

side wall portions

17 and 17 are formed in a plate shape having a thickness direction along a substantially horizontal direction (a direction orthogonal to the direction of gravity). The lower portions of the rear wall portion 13, the front wall portion 14, and the

side wall portions

17 and 17 are formed in an inclined shape inclined toward the axial center (the top center of the storage container 10) as they go downward.

In the present embodiment, the inclination angle of the lower portion of the rear side wall portion 13 with respect to the upper portion is made larger than the inclination angle of the lower portion of the front side wall portion 14 with respect to the upper portion. The inclination angles of the lower portions of the two

side wall portions

17 and 17 with respect to the upper portions are set to be substantially the same angle, and are larger than the inclination angle of the lower portion of the front side wall portion 14 with respect to the upper portion.

A hooked portion 14a to be hooked by the hooking portion 7a of the holding portion 7 is provided at an upper end portion of the front side wall portion 14.

A covering wall portion 15 is provided at a lower end side portion of the front side wall portion 14. The upper end portion of the covering wall portion 15 is fixed so as to extend along the outer surface of the inclined lower portion of the front side wall portion 14, and the lower end portion thereof is a covering portion 15a that covers the front side opening 21 of the lid body 20. As shown in fig. 1 and 3 (a), in the present embodiment, the covering portion 15a is provided on the front side in the closing direction with respect to the opening edge so as to form a gap in the closing direction with the opening edge of the discharge port 12. That is, the covering portion 15a is provided at a position spaced apart from the lower end portion of the front side wall portion 14 constituting the opening edge on the front side in the closing direction of the discharge port 12 by a gap along the opening and closing direction of the lid body 20. The covering portion 15a is formed in a plate shape having a thickness direction substantially parallel to a direction along which the lid body 20 is opened and closed (a facing direction of the rear side wall portion 13 and the front side wall portion 14). The surface of the covering portion 15a facing one side in the thickness direction (the cover 20 side (the rear side wall portion 13 side)) constitutes a contacted surface 16 against which the front end surface 22 of the cover 20 is contacted.

The covering portion 15a is provided to extend downward from the lower end portion of the front side wall portion 14. As shown in fig. 2 (b) and 3 (b), the covering portion 15a is provided so as to extend from the lower end portion of the storage container 10 toward both outer sides in the direction of the support shaft 18. The dimension of the covering portion 15a along the support shaft 18 direction is larger than the dimension of the front side opening 21 of the lid body 20 along the support shaft 18 direction. Further, the dimension of the covering portion 15a in the vertical direction is larger than the dimension in the vertical direction between the lower edge portion of the front opening 21 of the lid body 20 in the closed state and the lower end portion of the front side wall portion 14 of the storage container 10, in order to cover the gap. The dimension of the covering portion 15a along the vertical direction may be set to an appropriate dimension from the viewpoint of suppressing the leakage of the powdered or granular material from the covering portion 15a side in the closed state. In the illustrated example, the lower end portion of the covering portion 15a is provided below the lower end edge of the front end surface 22 of the lid body 20 in the closed state.

The upper end portion of the covering wall portion 15 may be fixed to the outer side surface of the front side wall portion 14 by adhesion, welding, screws, or the like, or may be integrally provided on the front side wall portion 14.

The

side wall portions

17, 17 are provided with bearing

portions

17a, 17a for rotatably holding the support shaft 18. In the present embodiment, the support shaft 18 is provided so as to be bridged between the two side wall portions 17, and the bearing

portions

17a, 17a are provided as bearing holes through which the support shaft 18 disposed so as to penetrate the

side wall portions

17, 17 is inserted. The support shaft 18 is formed in a circular bar shape having a longitudinal direction along the opposing direction of the

side walls

17, 17.

In the present embodiment, the support shaft 18 is located at the center of the discharge port 12 in the opening/closing direction of the lid 20 (the facing direction of the rear side wall portion 13 and the front side wall portion 14) or is located on the opening side (rear side) of the lid 20 in the moving direction of the lid 20 from the center of the discharge port 12. In the illustrated example, the support shaft 18 is located at the center of the discharge port 12 in the opening/closing direction of the lid 20. That is, the support shaft 18 is provided so as to be positioned directly above the center of the lid body 20 of the discharge port 12 in the opening/closing direction. The support shaft 18 is provided at a portion closer to the front side wall portion 14 than upper portions of the

side wall portions

17 and 17. That is, the support shaft 18 is provided at a position closer to the front side wall portion 14 than the center portion in the opening/closing direction of the lid body 20 at the upper side portion of the storage container 10.

As shown in fig. 1 and 2, the two

side wall portions

17, 17 are provided with holding portions 17b, and the holding

portions

17b, 17b

hold biasing members

19, 19 that bias the lid body 20, which is moved to the open side by the drive portion 8 described later, to the closed side. In the present embodiment, the biasing

members

19, 19 are tension coil springs, and the holding

portions

17b, 17b holding one ends thereof are provided at the front side wall portion 14 side among the upper side portions of the both

side wall portions

17, 17. In the illustrated example, the holding

portions

17b and 17b are provided below the support shaft 18 and on the front side wall portion 14 side. In the illustrated example, the holding

portions

17b and 17b are provided in a protruding shape protruding from the outer side surfaces of the both

side wall portions

17 and 17 in the axial direction of the support shaft 18.

The

side wall portions

17 and 17 are provided with

stopper portions

17c and 17c, and the

stopper portions

17c and 17c prevent the lid body 20, which is moved to the open side by the drive portion 8 described later, from moving further to the open side. These

stoppers

17c, 17c are provided at the rear wall portion 13 side of the upper side portions of the both

side wall portions

17, 17. In the figure, an example is shown in which these

stoppers

17c, 17c are provided below the support shaft 18 and on the rear side wall portion 13 side. In the illustrated example, the

stopper portions

17c and 17c are provided at positions slightly lower than the holding

portions

17b and 17 b. Further, an example is shown in which these

stopper portions

17c, 17c are formed in a protruding shape protruding from the outer side surfaces of both

side wall portions

17, 17 in the axial direction of the support shaft 18.

The cover body 23 of the cover body 20 is formed in a plate shape in which the thickness direction is arranged substantially in the vertical direction in a closed state. As shown in fig. 2 (a) and 4 (a), the dimension of the cover main body 23 along the opening/closing direction and the support shaft 18 direction is larger than the dimension of the discharge port 12 of the storage container 10 along the opening/closing direction and the support shaft 18 direction. In the present embodiment, the cover main body 23 is formed in a substantially square shape in plan view. In the illustrated example, the cover body 23 is formed into a substantially rectangular shape elongated in the direction of the support shaft 18 in a plan view corresponding to the discharge port 12.

The lid main body 23 constitutes a bottom surface of the lid body 20 that opens upward in a closed state. The closing direction front end of the cover body 23 constitutes a lower opening edge of the front opening 21 of the cover body 20. The closing direction front end surface of the cover body 23 constitutes the front end surface 22 of the cover body 20, and abuts against the abutted surface 16 of the covering wall portion 15 in the closed state.

In the present embodiment, as shown in fig. 1 and 3 (a), the cover main body 23 is formed in an arc-like curved shape substantially concentric with the support shaft 18 of the lid body 20. That is, the cover main body 23 is formed in a curved plate shape. In addition, an upper side surface facing the discharge port 12 in the closed state of the cap main body 23 is formed in a concave curved surface shape which is concave upward, and a lower side surface facing downward in the closed state of the cap main body 23 is formed in a convex curved surface shape which is convex downward.

The cover main body 23 is disposed so that the deepest portion of the upper surface is positioned directly below the support shaft 18 in the closed state. That is, the cover main body 23 is configured to be disposed in a closed state such that the deepest portion of the upper side surface is positioned at the center portion of the discharge port 12 in the opening and closing direction of the cover body 20. The cap body 23 is configured such that, in the closed state, the closing direction front end portion and the rear end portion, which is different from the closing direction front end portion, are located at substantially the same height.

The standing

wall portions

24, 25, and 25 of the lid body 20 include: a rear standing wall portion 24 standing from a rear end portion which is different from the front end portion of the lid main body 23 in the closing direction in the opening and closing direction; and side standing

wall portions

25, 25 standing from both side edge portions of the cover main body 23 in the direction of the support shaft 18. In the present embodiment, the standing

wall portions

24, 25, and 25 and the lid main body 23 are arranged with a gap from the lower end portion of the storage container 10 in the closed state. That is, in the closed state, a gap is formed between the upper surface of the lid main body 23 and the lower end surface of the storage container 10. In the closed state, a gap is formed between the inner surface (the surface facing the front side in the closing direction) of the rear standing wall portion 24 and the outer surface of the rear side wall portion 13. In the closed state, a gap is formed between the inner surfaces (surfaces facing each other) of the two side standing

wall portions

25, 25 and the outer surfaces of the two

side wall portions

17, 17.

The gaps between the standing

wall portions

24, 25 and the lid main body 23 and the lower end portion of the storage container 10 may be set to an appropriate size from the viewpoint of suppressing biting between the lid body 20 and the lower end portion of the storage container 10, which are the movement of the powder or granular material toward the closed side, and from the viewpoint of suppressing leakage of the powder or granular material from the standing

wall portions

24, 25 in the closed state. For example, the gap may be larger than the size of the powder or granule material (the diameter in the case of a substantially spherical shape, the size of the longest portion in the case of a non-spherical shape), and may be, for example, about 1.1 to 5 times or 3 times or less the size of the powder or granule material.

In the present embodiment, when the lid 20 is moved in the opening/closing direction, gaps are formed between the standing

wall portions

24, 25 and the lid main body 23 and the lower end portion of the storage container 10.

As shown in fig. 1, the rear standing wall portion 24 is formed in a plate shape in which the thickness direction is arranged substantially horizontally along a direction substantially along the opening/closing direction of the lid body 20 (a facing direction of the rear side wall portion 13 and the front side wall portion 14) in the closed state. The rear standing wall portion 24 constitutes an inner surface (inner peripheral surface) of the lid body 20 that opens upward in a closed state.

The rear standing wall portion 24 is provided so that an upper end portion thereof is positioned above a lower end surface of the storage container 10 in the closed state. The rising dimension of the rear standing wall portion 24 from the lid main body 23 (the dimension along the vertical direction in the closed state) may be set to an appropriate dimension in accordance with the gap between the rear standing wall portion and the lower end portion of the storage container 10 described above, from the viewpoint of suppressing leakage of the powder or granular material. In the illustrated example, the upper end portion of the rear standing wall portion 24 is provided on the lower side than the upper end portion of the covering portion 15a (the upper end portion of the portion extending in the direction of the support shaft 18) in the closed state, but a structure having substantially the same height as the upper end portion of the covering portion 15a may be employed.

In the present embodiment, in the closed state, the dimension from the rear standing wall portion 24 to the lower end edge of the rear side wall portion 13 along the facing direction of the rear side wall portion 13 and the front side wall portion 14 and the dimension from the covering portion 15a to the lower end edge of the front side wall portion 14 along this direction are set to be substantially the same dimension.

As shown in fig. 2 and 4, the rear standing wall portion 24 is provided across the entire space between the side standing

wall portions

25, 25.

As shown in fig. 2, the both side

upright wall portions

25, 25 are formed in a plate shape with the thickness direction thereof arranged along the support shaft 18 direction. These two side standing

wall portions

25, 25 constitute an inner surface (inner peripheral surface) of the lid body 20 that opens upward in a closed state. The closed front end portions of the lower end portions of the both side standing

wall portions

25, 25 constitute both side opening edge portions of the front opening 21 of the lid body 20 in the direction of the support shaft 18. Further, the front end faces in the closing direction of the lower end portions of the both side standing

wall portions

25, 25 constitute the front end face 22 of the lid body 20, and are brought into contact with the contacted face 16 of the covering wall portion 15 in the closed state. The front end surface in the closing direction of the lower end portion of each of the two side standing

wall portions

25, 25 is formed in a substantially vertical surface shape facing the front side in the closing direction so as to face the contacted surface 16 of the covering wall portion 15 in the contacting state in the closed state. Further, of these both side standing

wall portions

25 and 25, the dimension along the vertical direction of the closing direction front end surface abutting against the abutted surface 16 of the covering wall portion 15 may be set to an appropriate dimension so that the powder or granule material can leak out in a closed state. The front end surface 22 of the lid body 20 including the closed front end surfaces of the lower end portions of the both side standing

wall portions

25, 25 and the contacted surface 16 of the covering wall portion 15 may be configured to be capable of contacting each other to suppress leakage of the particulate material, and may be not only in a vertical plane but also in an inclined plane or a curved plane.

These two side standing

wall portions

25, 25 are provided so that the upper end portions thereof are located above the lower end surface of the storage container 10 in the closed state. The rising dimension of the both-side standing

wall portions

25, 25 from the cover main body 23 is larger than the rising dimension of the rear standing wall portion 24. These two side standing

wall portions

25, 25 are provided from the lid main body 23 to an upper portion of the storage container 10 than a vertically central portion in a closed state. Upper ends of the side standing

wall portions

25 and 25 are rotatably connected to the support shaft 18. In the illustrated example, bearing holes are provided at the upper ends of the side upright wall portions 25, and the bearing holes constitute bearing

portions

26, 26 through which the support shaft 18 is inserted. The lid 20 is not limited to the illustrated embodiment as long as it is rotatable about the support shaft 18 with respect to the storage container 10. For example, instead of the support shaft 18 installed between the side walls 17, the support shaft may be installed on each of the

side walls

17, 17. Further, various modifications are possible, such as a structure in which a protruding shaft constituting the support shaft 18 is fixedly provided on one of the storage container 10 side and the lid body 20 side, and a bearing portion for housing the protruding shaft is provided on the other.

Holding

portions

25a, 25a are provided in the both side standing wall portions 25, and the holding

portions

25a, 25a hold the other ends of the biasing

members

19, 19 provided on both sides in the direction of the support shaft 18. These holding

portions

25a, 25a are provided at upper portions smaller in size in the facing direction of the rear side wall portion 13 and the front side wall portion 14 than lower portions of these both side standing

wall portions

25, 25. In the illustrated example, a notch-shaped recess that opens toward the front in the closing direction is provided in an upper portion of the both side standing wall portions 25, and the holding

portions

25a, 25a are provided in a portion that constitutes a bottom side of the recess. In addition, an example is shown in which the holding

portions

25a and 25a are through holes into which the other ends of the biasing

members

19 and 19 are inserted so as to be hooked. The bearing

portions

26 and 26 are provided above the holding

portions

25a and 25 a.

Further, rear surfaces of upper portions of the both side standing

wall portions

25 and 25 facing a side different from a front side in the closing direction constitute abutted portions to be abutted against the

stopper portions

17c and 17 c.

In the present embodiment, the cover 20 is provided with a follower portion 27 that is moved by the drive portion 8 when the cover 20 is opened. The driven portion 27 is provided on one of the

side walls

25, 25 below the support shaft 18. The driven portion 27 is provided to protrude from the front edge portion of one of the side standing wall portions 25 in the closing direction toward the inside (the side of the other side standing wall portion 25). With such a configuration, the storage device 1 can be made more compact than a configuration protruding outward, and interference with the inner peripheral surface of the housing 2 can be suppressed. As shown in fig. 2 (b), the inward projecting dimension of the follower portion 27 may be set to an appropriate dimension as long as it does not abut against the lower end side portion of the side wall portion 17 of the storage container 10 when opening and closing.

In the present embodiment, the driven portion 27 is formed in a plate shape having a thickness direction arranged along a direction along a facing direction of the rear side wall portion 13 and the front side wall portion 14 in the closed state.

As shown in fig. 1, the driving portion 8 for moving the follower portion 27 is configured to move and open the lid body 20 so as to be separated from the covering portion 15a. The lid 20 is configured to be in an open position by the driving portion 8, and to be in a closed position by its own weight and the biasing

members

19 and 19.

The driving unit 8 is configured to maintain the lid 20 at the open position.

In the present embodiment, the driving unit 8 is a cylinder. Such a cylinder may be, for example, an air cylinder, and may have a rod that extends and contracts with respect to a cylinder body, and a contact portion 9 that contacts the driven portion 27 is provided at a distal end portion thereof. The driving unit 8 is configured to extend and contract in a direction in which the rod extends and contracts in a direction in which the rear side wall portion 13 and the front side wall portion 14 face each other. The contact portion 9 of the rod tip end portion of the driving portion 8 and the follower portion 27 of the lid body 20 are set to be in non-contact (non-coupled) with the lid body 20 in a closed state. With such a configuration, for example, maintenance and cleaning performance can be improved as compared with a configuration in which the driven portion 27 of the lid body 20 and the driving portion 8 are coupled.

In addition, an example in which the cylinder body of the driving portion 8 is fixed to the outer side surface of the housing 2 is shown. The housing 2 is provided with an insertion hole 5 through which the rod is inserted.

When the lever of the driving unit 8 is extended, the follower 27 of the closed cover 20 is pushed to the open side against the biasing force of the biasing

members

19 and 19, and the cover 20 is moved to the open position. That is, the discharge port 12 of the storage container 10 is opened. When the lid body 20 is set to the open position, the lid body 23 is set to a position not overlapping the discharge port 12 in a plan view (viewed in the vertical direction), and the discharge port 12 is opened as a whole. In the open position, the cover main body 23 is formed in an inclined shape that is inclined so as to descend toward the front side in the closing direction. That is, the cover main body 23 is configured such that the front end portion in the closing direction is located lower than the rear end portion in the open state.

Thus, when the lid body 20 moves to the open side, the lid main body 23 does not move substantially downward, but moves obliquely upward along an arc centered on the support shaft 18. In the open position, the rear standing wall portion 24 side portion (rear end side portion) of the lid body 20 is positioned so as not to protrude greatly rearward (forward in the opening direction) from the outer surface of the upper side portion of the rear side wall portion 13 of the storage container 10 and so as not to interfere with the inner peripheral surface of the housing 2. In the illustrated example, the rotation angle of the lid 20 about the support shaft 18 from the closed position to the open position is set to about 35 degrees, but the shape of the discharge port 12 including the lower end portion of the storage container 10, the shape and the rotation radius of the lid 20, and the like may be set to appropriate angles from the viewpoint of the discharge performance of the powder/granular material.

On the other hand, if the lever of the driving portion 8 is shortened, the lid body 20 moves to the closing side by its own weight and the biasing force (elastic restoring force) of the biasing members 19, and the lid body 20 becomes the closing position. That is, the discharge port 12 of the storage container 10 is closed by the lid body 20, and the front end surface 22 of the lid body 20 abuts against the abutted surface 16 of the covering portion 15a. When the lid body 20 is moved to the closing side in this way, the lid main body 23 is moved obliquely downward along an arc centered on the support shaft 18. In this way, the lid 20 is configured to move between the open position and the closed position in a so-called vibrator shape.

In this closed position, a slight gap is formed between the driven portion 27 of the lid body 20 and the contact portion 9 of the driving portion 8. Instead of this, the contact portion 9 and the driven portion 27 may be brought into contact with each other at the closed position. The biasing

members

19 and 19 for biasing the lid 20 toward the closed side are not limited to the above-described tension coil springs, and may be other spring members such as torsion springs and leaf springs, or may be rubber or the like. Instead of providing the biasing

members

19 and 19, the lid 20 may be biased toward the closed side by the weight of the lid 20 or a hammer fixed to the lid 20. Further, a structure may be adopted in which an appropriate driving portion for moving the lid body 20 to the closing side is provided.

The driving portion 8 for moving the follower portion 27 of the lid 20 to open the lid 20 is not limited to the above-described embodiment. For example, instead of providing the driving portion 8 on the front side wall portion 14 side of the storage container 10, the driving portion 8 may be provided on the rear side wall portion 13 side, and the driven portion 27 of the lid body 20 may be moved to be pulled toward the open side when the lever is shortened. In this case, the position and shape of the driven portion 27 may be appropriately deformed. In this case, the contact portion 9 between the driven portion 27 and the driving portion 8 may be brought into non-contact (non-connection) with each other at the closed position. Further, the driven portion 27 is not limited to a mode of moving substantially along the rod extending and contracting direction of the driving portion 8, and a mode of connecting a lever or the like moving in a direction different from the rod extending and contracting direction to the rod and moving the driven portion 27 by the lever may be adopted. The driving unit main body of the driving unit 8 is not limited to the air cylinder, and a hydraulic cylinder may be used, and a driving unit using a solenoid or an electric motor, or other various actuators may be used without being limited to such a cylinder.

The opening and closing of the lid 20 by the driving unit 8 as described above may be controlled by a control unit including a CPU or the like provided in the storage device 1 or an appropriate control panel provided in a system in which the storage device 1 is incorporated. For example, if a material request signal is output from a supply destination side provided on the downstream side of the storage apparatus 1, the lid 20 may be opened. Alternatively, the mass of the powder or granular material charged into the storage device 1 may be detected by the mass detector 6, and if the detection value of the mass detector 6 reaches a predetermined target value, the lid 20 may be opened, or in addition, various modifications may be made as the opening and closing method of the lid 20. The opening time of the holding lid 20 at the open position may be a predetermined time so that the total amount of the powder/granular material stored in the storage device 1 can be discharged.

By adopting the above-described configuration, the storage device 1 for a powdered or granular material according to the present embodiment can effectively reduce the opening/closing space of the lid 20 required on the lower side of the storage container 10.

That is, the lid 20 is provided, and the lid 20 is configured to rotate about a support shaft 18 located above the discharge port 12 and extending along a substantially horizontal direction, thereby opening and closing the discharge port 12. Therefore, when the lid 20 is rotated about the support shaft 18 located above the discharge port 12, the lid 20 below the support shaft 18 moves toward the open side in a pendulum shape. Thus, for example, compared to a case where a valve body that rotates about an axis provided on a side of the storage container 10 and moves downward to open is provided, the opening/closing space of the lid body 20 required for the lower side of the storage container 10 can be effectively reduced. This makes it possible to reduce the height of the system incorporating the storage device 1.

The lid body 20 is provided with a lid main body 23 and standing

wall portions

24, 25, and the lid body 20 is formed in a shape that opens upward and forward in the closing direction in a closed state. Therefore, even if the leakage of the powder or granular material is suppressed by the

upright wall portions

24, and 24 around the cover main body 23, the powder or granular material existing on the cover main body 23 can be smoothly discharged from the front opening 21 side on the front side in the closing direction of the cover body 20 in the open state. The storage container 10 is provided with a covering wall portion 15 (covering portion 15 a), and the covering wall portion 15 abuts against the front end surface 22 of the closed cover 20 to cover the front opening 21 of the cover 20. Therefore, as described above, the discharge performance can be improved, and the leakage of the particulate material from the front side in the sealing direction can be suppressed.

In the present embodiment, the lid body 23 and the standing

wall portions

24, 25, and 25 of the lid body 20 are arranged with a gap from the lower end portion of the storage container 10 in the closed state. Therefore, even when the powder or granular material is present between the lid main body 23 and the lower end surface of the storage container 10 and between the inner peripheral sides of the standing

wall portions

24 and 25 and the outer peripheral side of the lower end portion of the storage container 10 when the lid body 20 is closed, the powder or granular material can be received in the gap, and a malfunction caused by the biting of the powder or granular material between them can be made difficult to occur. Instead of this, at least one of the lid main body 23 and the

upright wall portions

24, 25, and 25 of the lid body 20 may be brought into contact with the lower end portion of the storage container 10 in the closed state. In this case, the shapes of the lid 20 and the lower end portion of the storage container 10 may be appropriately modified as necessary so that the lid 20 can be opened and closed.

In the present embodiment, the covering wall portion 15 of the storage container 10 is located on the front side in the closing direction with respect to the opening edge so as to form a gap along the closing direction with the opening edge of the discharge port 12. Therefore, as compared with the case where the covering wall portion 15 is continuously connected to the inner peripheral surface of the storage container 10, the biting of the powder or granular material on the front side in the closing direction can be reduced. That is, since the covering portion 15a of the covering wall portion 15 is provided at a position apart from the inner peripheral surface of the storage container 10 in which the powder or granular material is stored, it is possible to reduce the possibility that the powder or granular material flowing down along the inner peripheral surface of the storage container 10 is caught between the front end surface 22 of the lid body 20 and the covering portion 15a of the covering wall portion 15. Instead of this, the covering wall portion 15 may be configured to extend continuously downward from the lower end portion of the front side wall portion 14 of the storage container 10. That is, the contacted surface 16 of the covering wall portion 15 and the inner surface of the front side wall portion 14 may be provided continuously.

In the present embodiment, the cover body 23 of the cover body 20 is formed in a curved shape having an arc shape substantially concentric with the support shaft 18 of the cover body 20. Therefore, as described above, the lid body 23 moves so as to draw an arc substantially concentric with the support shaft 18 during opening and closing, and the lid body 20 can be substantially prevented from protruding below the closed state. In addition, when the gap as described above is provided, the gap between the upper side surface of the lid main body 23 and the lower end portion of the rear side wall portion 13 of the storage container 10 when opening and closing the lid body 20 can be made substantially uniform. Instead of forming the lid main body 23 in such a curved shape, a flat plate shape arranged substantially parallel to the lower end surface of the storage container 10 in the closed state may be used, or a curved portion may be provided at the rear end portion corresponding to the lower end surface of the storage container 10.

In the present embodiment, the support shaft 18 of the lid body 20 is provided so as to be positioned at the center of the discharge port 12 in the opening/closing direction of the lid body 20 or so as to be open (rearward) in the moving direction of the lid body 20 from the center of the discharge port 12. Therefore, compared to a configuration in which the support shaft 18 of the lid 20 is located on the front side in the closing direction of the lid 20 with respect to the center portion of the discharge port 12 in the opening and closing direction of the lid 20, the opening and closing space of the lid 20 required for the lower side of the storage container 10 can be more effectively reduced. Alternatively, the support shaft 18 of the lid 20 may be positioned on the front side of the lid 20 in the closing direction of the lid 20 with respect to the center of the discharge port 12 in the opening and closing direction of the lid 20.

In the present embodiment, the driven portion 27 is provided below the support shaft 18 of one of the

side walls

25, 25. That is, the driven portion 27 is provided at a position from the cover main body 23 of the one side standing wall portion 25 to the support shaft 18. Therefore, the cover body 20 can be made compact and simplified as compared with a structure in which the driven portion is provided above the support shaft 18 and below the cover body 23. Instead of this, the follower portion 27 may be provided on the upper side of the support shaft 18 or on the lower side of the cover main body 23. Instead of providing the driving portion 8 for moving the driven portion 27 provided at a position away from the support shaft 18 of the lid body 20, a system in which the driving portion 8 for rotating the support shaft 18 of the lid body 20 is provided may be employed.

In the present embodiment, the storage device 1 is described as constituting a metering device, but the present invention is not limited to this embodiment. For example, the storage device 1 may be a material tank for storing the powder or granule material supplied from the upstream side, and may be used for various applications, or may be modified in various ways depending on the application.

In addition, instead of forming the storage container 10 in a substantially rectangular cylindrical shape, a substantially cylindrical shape or the like may be formed, and in this case, the shape of the lid body 20 may be appropriately deformed. Instead of the lower end surface that divides the discharge port 12 being a substantially horizontal surface facing substantially directly downward, the cover body 23 may be formed in a curved shape such that it has a convex curved surface shape that protrudes downward, an inclined surface, or a portion thereof that is curved. The specific configuration of each member and each portion provided in the storage device 1 according to the present embodiment is not limited to the above configuration, and various modifications are possible.

Claims

1. A storage device for a granular material, characterized in that,

the disclosed device is provided with: a storage container provided with a discharge port opened downward on a lower end side thereof and storing the powder/granular material; a cover body which is rotated around a support shaft which is arranged above the discharge port and is along a substantially horizontal direction to open and close the discharge port,

the lid body is provided with: a cover body formed to be larger than the diameter of the discharge port so as to cover the discharge port; and a standing wall portion standing from both side edge portions in the pivot axis direction of the lid main body and an upper end side edge portion in an open state, the standing wall portion being arranged so as to cover an outer periphery of a lower end portion of the storage container in a closed state, and the lid body being formed in a shape opening toward an upper side and a front side in the closed state, the lid main body and the standing wall portion being arranged so as to provide a gap larger than a powder or granular material between the lid main body and the lower end portion of the storage container in the closed state,

the storage container is provided with a covering wall portion that covers the opening of the lid body on the closing direction front side by abutting against the closing direction front side end surface of the lid body in the closed state, and the covering wall portion is provided so as to extend from the lower end portion of the storage container to both outer sides in the pivot axis direction so that the dimension of the covering wall portion along the pivot axis direction is larger than the dimension of the opening of the lid body on the closing direction front side in the pivot axis direction.

2. The storage device for powdered or granular material according to claim 1,

the covering wall portion of the storage container is provided at a position on the front side in the closing direction with respect to the opening edge of the discharge port so as to form a gap in the closing direction with the opening edge.

3. The storage device for powdered or granular material according to claim 1,

the lid body of the lid body is formed in a curved shape having an arc shape substantially concentric with a support shaft of the lid body.

4. The storage device for powdered or granular material according to claim 2,

the lid body of the lid body is formed in an arc-shaped curved shape substantially concentric with the pivot of the lid body.

5. The storage device for powdered or granular material according to claim 1,

the support shaft of the lid is provided so as to be positioned at the center of the discharge port or on the side of the center of the discharge port that is open in the moving direction of the lid in the opening/closing direction of the lid.

6. The storage device for powdered or granular material according to claim 2, wherein,

7. The storage device for powdered or granular material according to claim 3, wherein,

8. The storage device for powdered or granular material according to claim 4, wherein the storage device for powdered or granular material is a storage device for powdered or granular material,

9. The storage device for powdered or granular material according to any one of claims 1 to 8,

the cover body is provided with a driven portion that is moved by a driving portion when the cover body is opened, and the driven portion is provided at a position below the support shaft in one of two side standing wall portions that are provided standing from both side edge portions in the support shaft direction of the cover main body.