JP7622992B2 - Powder and granular material processing equipment - Google Patents

Description

The present invention relates to a powder/granular material processing device that processes powder or granular materials (hereinafter referred to as "powder/granular materials").

Conventionally, in various industrial fields, devices have been used that store powder or granular material in the internal space of a container and process it, such as by mixing it. An apparatus for storing and processing powder or granular material is described, for example, in Patent Document 1.

JP 2017-177015 A

The mixing and granulation device (1) disclosed in Patent Document 1 includes a mixing tank (10), an agitator (20), and a chopper (30). The mixing and granulation device (1) stirs the powdered material introduced into the mixing tank (10) while splashing it up with the agitator (20), and crushes the stirred material with the shear blade (30) to perform mixing and granulation (paragraph 0028). The mixing tank (10) is a bottomed hollow cylinder, and has a bottom wall (11) that is circular in plan view, a cylindrical side wall (12), and a lid member (13) that closes an opening provided at the top. A scraper (14) that scrapes off powdered material adhering to the upper part of the inner wall of the mixing tank (10) is provided inside the lid member (13).

However, if the lid member (13) is opened while the powder is attached to it, there is a risk that the powder may fall onto the floor or other surface outside the mixing tank (10). In this case, the powder that has fallen onto the floor or other surface must be cleaned up, which may reduce workability.

The present invention was developed in consideration of these circumstances, and aims to provide a device that can easily collect powder and granular material adhering to the lid member outside the mixing tank.

In order to solve the above problems, the first invention of the present application is a powdered material processing device, comprising: a covered powdered material storage container having a bottomed cylindrical container body and a top lid capable of closing the upward opening of the container body, which stores powdered material in the internal space of the container body; a stirring blade for stirring the powdered material stored in the internal space; a top lid support mechanism for supporting the top lid so that it can move laterally between a closing position that closes the opening and an opening position that opens at least a portion of the opening; and a powdered material recovery mechanism for recovering powdered material that has fallen from the top lid to the outside of the container body, the powdered material recovery mechanism having a recovery surface that faces vertically the lower surface of the top lid when it is in the open position.

The second invention of the present application is the powdered material processing device of the first invention, in which the powdered material recovery mechanism has a plate-shaped recovery plate having the recovery surface on at least a portion thereof, and a recovery plate support mechanism that supports the recovery plate in a tiltable manner.

The third invention of the present application is the powder/granular material processing device of the second invention, in which the covered powder/granular material storage container has a locking member that can limit the inclination of the collection plate.

The fourth invention of the present application is the powder/granular material processing device of the third invention, in which the recovery plate support mechanism has a lower support member having an upper surface that extends horizontally and contacts a portion of the recovery plate, and the lower support member is fixed directly or indirectly to the container body at any position in the vertical direction.

The fifth invention of the present application is a powder/granular material processing device according to the third or fourth invention, in which the locking member is capable of adjusting the inclination of the recovery plate.

The sixth invention of the present application is the powder/granular material processing device of the fourth invention, in which the recovery plate support mechanism has a support shaft that is directly or indirectly fixed to the end of the lower support member and is installed parallel to the upper surface of the lower support member, and two connecting parts, one end of which is rotatably attached to the support shaft, and the other ends of the two connecting parts are each fixed to the recovery plate.

The seventh invention of the present application is the powder/granular material processing device of the sixth invention, in which the position on the recovery plate where the two connecting parts are fixed is closer to the container body than the center position on the recovery plate.

The eighth invention of the present application is a powder/granular material processing device according to any one of the second to seventh inventions, in which the recovery plate has a bent portion that bends at the end of the recovery surface, and the bent portion bends upward when the recovery surface is horizontal.

The ninth invention of the present application is a powder/granular material processing device according to any one of the second to eighth inventions, in which the recovery plate is made of an aluminum alloy.

The tenth invention of the present application is the powdered material processing device of the first invention, in which the powdered material recovery mechanism has a funnel-shaped converging section that extends vertically in a cylindrical shape and gradually converges downward, and at least a portion of the inner surface of the converging section forms the recovery surface.

The eleventh invention of the present application is a powder/granular material processing device according to any one of the first to tenth inventions, in which the recovery surface is coated with a coating containing a fluororesin.

According to the first to eleventh inventions of the present application, when the top lid capable of closing the opening of the bottomed cylindrical container body is in the open position, the bottom surface of the top lid and the collection surface of the powder/granular material collection mechanism face each other vertically. This makes it possible to easily collect the powder/granular material by placing the powder/granular material adhering to the top lid on the collection surface on the outside of the container body.

In particular, according to the second invention of the present application, by tilting the recovery plate, workers can efficiently recover powder and granular materials placed on the recovery surface.

In particular, the third invention of the present application can prevent the powder placed on the collection surface from falling to the floor or the like due to the collection plate being suddenly tilted significantly.

In particular, according to the fourth aspect of the present invention, the lower support member and recovery plate can be adjusted to a height that suits the worker's height, etc., improving workability.

In particular, according to the fifth aspect of the present invention, the inclination of the recovery plate can be gradually increased to sweep up and recover the powder and granular material placed on the recovery surface, thereby further improving workability.

In particular, according to the seventh aspect of the present invention, when the powder/granular material recovery mechanism is temporarily out of use, the recovery plate can be tilted and folded so that the recovery surface is vertical, thereby reducing the space required for the entire powder/granular material processing device, including the powder/granular material recovery mechanism.

In particular, according to the eighth aspect of the present invention, it is possible to prevent powder placed on the collection surface from spilling over the edge of the collection surface onto the floor, etc.

In particular, according to the ninth aspect of the present invention, the recovery plate can be made lighter, improving the ease of use when tilting the recovery plate.

In particular, according to the tenth aspect of the present invention, the inclination of the recovery surface causes the powder placed on the recovery surface to naturally gather toward the recovery port and be discharged. This makes it easy to collect the powder discharged from the recovery port.

In particular, according to the eleventh aspect of the present invention, it is possible to prevent the powder and granular material placed on the collection surface from remaining attached to the collection surface even after the worker has swept up and collected the powder and granular material.

FIG. 2 is a side view of the powder/granular material processing apparatus. FIG. FIG. 2 is a side view of a powder/granular material storage container with a lid. FIG. 4 is a side view of a powder/granular material storage container with a lid and a powder/granular material recovery mechanism. FIG. FIG. 13 is a side view of a recovery plate according to a modified example. FIG. 13 is a side view of a recovery plate according to a modified example. FIG. 11 is a perspective view of a powder/granular material recovery mechanism according to a modified example. FIG. 11 is a perspective view of a powder/granular material recovery mechanism according to a modified example.

A preferred embodiment of the present invention will be described below with reference to the drawings. In this application, in the description of the covered powder/granular material storage container described below, the direction perpendicular to the central axis of the container body extending in the up-down direction is referred to as the "radial direction", and the direction along the arc centered on the central axis is referred to as the "circumferential direction". In addition, the direction in which the top lid of the covered powder/granular material storage container described below moves toward the open position where it opens the opening of the container body is referred to as the "front", and the direction from the open position to the closed position is referred to as the "rear". In addition, the right hand from the "rear" to the "front" is referred to as the "right side", and the left hand from the "rear" to the "front" is referred to as the "left side".

1. First embodiment
<1-1. Configuration of powder/granular material processing device>
Fig. 1 is a side view conceptually showing a part of a powdered or granular material processing apparatus 1 according to an embodiment of the present invention. Fig. 2 is a top view of the powdered or granular material processing apparatus 1. The powdered or granular material processing apparatus 1 is an apparatus in which, for example, a plurality of types of powdered or granular material are inputted from an opening 110 of a container body 11 described later, and stirred and mixed. Powdered or granular material to be processed includes, for example, plastic, ceramic, metal, glass, toner, pigment, cosmetics, wood powder, food, medicine, etc., but is not limited thereto. The powdered or granular material processing apparatus 1 may also be one that stirs and mixes powdered or granular material and liquid.

The powder and granular material processing device 1 of this embodiment has a covered powder and granular material storage container 10, a top lid support mechanism 13, a stirring member 20, a drive unit 30, a powder and granular material discharge unit 40, a powder and granular material recovery mechanism 50 (described later), a control unit 60, and a base unit 70.

Figure 3 is a side view showing a part of the powdered material storage container 10 with a lid. As shown in Figure 3, the powdered material storage container 10 with a lid has a cylindrical container body 11 with a bottom and an upper lid 12. In this embodiment, the container body 11 and the upper lid 12 are each made of a metal material such as stainless steel.

The container body 11 has a plate-shaped bottom plate portion 111 and a cylindrical side wall portion 112. The bottom plate portion 111 has a substantially circular shape when viewed from above. The side wall portion 112 extends upward from the outer periphery of the bottom plate portion 111 along the central axis 90. That is, the container body 11 of this embodiment is cylindrical with a bottom. Also, in this embodiment, an opening 110 is provided in the upper portion of the container body 11. However, the position of the opening 110 is not limited to the upper portion of the container body 11. In the present invention, it is sufficient that the upward opening 110 is provided in at least a portion of the container body 11.

The top lid 12 is a plate-shaped member capable of closing the opening 110 of the container body 11. When stirring and mixing the powdered material, the powdered material is placed in the internal space 100 of the container body 11, and the opening 110 is closed by the top lid 12. A sealing member such as an O-ring that contacts the upper end surface of the side wall portion 112 may be provided on the lower surface of the top lid 12.

The top lid support mechanism 13 has a top lid support mechanism main body 131 and a top lid support mechanism arm 132. The top lid support mechanism main body 131 extends in the vertical direction and is fixed at its lower end to the base 70 (see FIG. 1). One end of the top lid support mechanism arm 132 is fixed to the top lid support mechanism main body 131 and is supported so as to be rotatable relative to the top lid support mechanism main body 131 and movable up and down. The other end of the top lid support mechanism arm 132 is fixed to the top lid 12.

Figure 4 is a side view of the covered powder/granular material storage container 10 as viewed from the direction D1 shown in Figure 3. Note that in Figure 4, the top lid support mechanism 13 is partially omitted, but the powder/granular material recovery mechanism 50 described below is shown. With the above-described configuration of the top lid support mechanism 13, the top lid 12 is supported so as to be able to move laterally between a closing position Pc that closes the opening 110 and an opening position Po that opens at least a portion of the opening 110 (see arrow A1 in Figures 2 and 4). More specifically, the opening position Po is located diagonally above and forward of the closing position Pc. As a result, in the opening position Po, a portion of the top lid 12 protrudes forward of the container body 11.

The stirring member 20 is a member for stirring and mixing the powdered material contained in the internal space 100 of the container body 11. The stirring member 20 is located near the bottom of the internal space 100. The stirring member 20 has multiple stirring blades 21. The multiple stirring blades 21 are provided around a shaft 33 described below. In this embodiment, two stirring members 20 with different shapes are arranged in a vertically stacked state. However, the number of stirring members 20 may be one, or three or more.

The drive unit 30 is a mechanism for rotating the stirring member 20. As conceptually shown in FIG. 1, the drive unit 30 has a motor unit 31 (motor and reducer) that serves as a driving source, a power transmission mechanism 32, and a shaft 33. The shaft 33 extends vertically through the bottom plate portion 111 of the container body 11. The upper end of the shaft 33 is connected to the center of the stirring member 20. The power transmission mechanism 32 transmits the driving force output from the motor unit 31 to the shaft 33. For example, the power transmission mechanism 32 is a mechanism having a pair of pulleys and a circular timing belt stretched around the pulleys. However, the power transmission mechanism 32 may be another mechanism. In addition, the output shaft of the motor unit 31 may be directly connected to the shaft 33 without going through the power transmission mechanism 32.

The shaft 33 is rotatably supported by a bearing (not shown) interposed between the bottom plate portion 111. As conceptually shown in FIG. 3, the powder/granular material processing device 1 is also provided with an air seal mechanism 34 that introduces gas between the bottom plate portion 111 and the shaft 33. The air seal mechanism 34 introduces gas pressurized by a compressor into the internal space 100 of the container body 11 through the space between the bottom plate portion 111 and the shaft 33. This prevents the powder/granular material contained in the internal space 100 from leaking out from between the bottom plate portion 111 and the shaft 33 to the outside.

The powder/granular material discharge section 40 is a mechanism for discharging the powder/granular material after stirring and mixing. The powder/granular material discharge section 40 has a discharge port 41, a discharge path 42, and a discharge valve 43. The discharge port 41 is an opening provided near the lower end of the side wall portion 112. The discharge port 41 is located radially outside the stirring member 20. The discharge path 42 extends diagonally downward from the discharge port 41. The discharge valve 43 switches the discharge port 41 between a closed state and an open state. When the powder/granular material is stirred and mixed in the internal space 100 of the container body 11, the discharge valve 43 closes the discharge port 41. In addition, when the processing is completed, the discharge valve 43 opens the discharge port 41. As a result, the powder/granular material stored in the internal space 100 is discharged through the discharge port 41 to the discharge path 42. However, the powder/granular material discharge section 40 does not necessarily have to be provided. For example, multiple types of powders and granules may be added through the opening 110 of the container body 11, stirred and mixed, and then removed again through the opening 110.

The powder/granule recovery mechanism 50 is a mechanism for recovering powder/granules that have fallen from the top lid 12 to the outside of the container body 11. The detailed structure of the powder/granule recovery mechanism 50 will be described later.

The control unit 60 is a unit for controlling the operation of each part of the powder/granular material processing apparatus 1. The control unit 60 is, for example, configured by an electric circuit board. However, the control unit 60 may also be configured by a computer. The control unit 60 of this embodiment is electrically connected to the motor unit 31 and the discharge valve 43. The control unit 60 also has a memory unit 61. The control unit 60 operates the motor unit 31 and the discharge valve 43 based on the various conditions stored in the memory unit 61. This allows the powder/granular material processing apparatus 1 to proceed with the stirring/mixing process and the discharge process. However, the control unit 60 does not necessarily have to be provided. The motor unit 31 and the discharge valve 43 may be manually operated by an operator.

The base part 70 is a frame that houses the power transmission mechanism 32 of the drive part 30 and a part of the shaft 33. In addition, the covered powder and granular material storage container 10 is placed and fixed on the upper surface 701 of the base part 70.

<1-2. Detailed structure of powder and granular material recovery mechanism>
Next, the detailed structure of the powder/granular material recovery mechanism 50 will be described.

Figure 5 is a perspective view of the powder/granular material recovery mechanism 50. The powder/granular material recovery mechanism 50 is usually placed in a separate standby location away from the covered powder/granular material storage container 10 when the powder/granular material is being stirred, mixed, or discharged. As shown in Figure 5, the powder/granular material recovery mechanism 50 has a recovery plate 51 and a recovery plate support mechanism 52.

The recovery plate 51 is a plate-shaped member. In this embodiment, the recovery plate 51 is made of aluminum. In this way, by using a material with a lower specific gravity than the covered powder/granular material storage container 10, the recovery plate 51 can be made lighter, which improves the workability when attaching the recovery plate 51 to the container body 11 via the recovery plate support mechanism 52 and when tilting the recovery plate 51, as described below. However, the recovery plate 51 may also be made of stainless steel.

The recovery plate 51 has a bottom surface portion 511 and three bent portions 512. The bottom surface portion 511 has a substantially rectangular shape when viewed from a direction perpendicular to the bottom surface portion 511. When the recovery plate 51 is attached to the container body 11 via the recovery plate support mechanism 52 as described below, the upper surface of the bottom surface portion 511 becomes a recovery surface 500 that vertically faces the lower surface of the top lid 12 located at the open position Po. As a result, even if the powder adhering to the top lid 12 falls outside the container body 11 when the top lid 12 is opened, the powder can be easily recovered by the worker 91 by placing it on the recovery surface 500. However, the bent portions 512 do not necessarily have to be provided.

In addition, in this embodiment, the collection surface 500 is subjected to a coating treatment that includes, for example, a fluororesin. This makes it possible to prevent the powder placed on the collection surface 500 from remaining attached to the collection surface 500 after, for example, the worker 91 sweeps up and collects the powder.

The three bent portions 512 are bent portions at the three ends 81, 82, and 83 of the recovery surface 500. Each of the three bent portions 512 bends upward when the recovery surface 500 is in a horizontal position. This prevents the powder placed on the recovery surface 500 from spilling from the ends 81, 82, and 83 onto the floor or the like.

The remaining end 84 of the recovery surface 500, excluding the three ends 81, 82, and 83, has a curved shape so as to fit along the outer peripheral surface of the container body 11 of the covered powder/granular material storage container 10. This makes it possible to prevent a gap from being formed between the recovery plate 51 and the container body 11 when the recovery plate 51 is attached to the container body 11 via the recovery plate support mechanism 52, as described below. As a result, it is possible to prevent the powder/granular material that has fallen from the top lid 12 located in the open position Po from falling onto the floor or the like through the gap between the recovery plate 51 and the container body 11.

However, the structure of the recovery plate 51 is not limited to this. The recovery plate 51 only needs to have at least a portion of a recovery surface 500 that faces vertically the lower surface of the top cover 12 that is positioned in the open position Po.

The recovery plate support mechanism 52 is composed of a pair of mechanisms, a first recovery plate support mechanism 521 and a second recovery plate support mechanism 522. The first recovery plate support mechanism 521 and the second recovery plate support mechanism 522 have a structure symmetrical to each other. In addition, the first recovery plate support mechanism 521 and the second recovery plate support mechanism 522 each have one lower support member 85, one support shaft 86, and one connecting part 88. That is, the recovery plate support mechanism 52 of this embodiment has two lower support members 85, two support shafts 86, and two connecting parts 88. However, the structure of the recovery plate support mechanism 52 is not limited to this. The recovery plate support mechanism 52 may be formed as a single continuous piece.

The lower support member 85 has an upper surface 851 that extends horizontally, and at the rear end, a bent portion 852 that bends downward in an L-shape. The recovery plate 51 is placed on the upper surface 851. In other words, the upper surface 851 contacts a part of the recovery plate 51. In addition, the bent portion 852 has a plurality of bolt through holes 853 (two in this embodiment). The two bolt through holes 853 are spaced apart from each other in the vertical direction.

As shown in FIG. 3, the side wall 112 of the covered powder/granular material storage container 10 is provided with a plurality of bolt holes 113 (three in this embodiment). The three bolt holes 113 are spaced apart from one another in the vertical direction. The lower support member 85 is directly fixed to the container body 11 by fastening a bolt (not shown) that passes through the bolt through hole 853 of the bent portion 852 to the bolt hole 113 of the side wall 112. However, the lower support member 85 may be indirectly fixed to the container body 11 via another member.

Here, the bolt through holes 853 through which the bolts (not shown) for fixing the lower support member 85 to the container body 11 pass are selected from two aligned vertically. Also, the bolt holes 113 in the container body 11 for tightening and fixing the bolts are selected from three aligned vertically. This allows the lower support member 85 to be fixed to the container body 11 at any position in the vertical direction. As a result, the lower support member 85 and the recovery plate 51 can be adjusted to a height appropriate for the height, etc., of the worker 91, improving workability.

The support shaft 86 is a columnar member that is installed parallel to the upper surface 851 of the lower support member 85. As described above, the recovery plate support mechanism 52 of this embodiment has two support shafts 86. One support shaft 86 is fixed to the right end of the lower support member 85 of the first recovery plate support mechanism 521, and the other support shaft 86 is fixed to the left end of the lower support member 85 of the second recovery plate support mechanism 522. However, the recovery plate support mechanism 52 may have one support shaft 86. One support shaft 86 may be fixed to both ends of the lower support member 85 (the right end of the first recovery plate support mechanism 521 and the left end of the second recovery plate support mechanism 522).

One end of each of the two connecting parts 88 is rotatably attached to the support shaft 86. That is, each of the two connecting parts 88 is supported rotatably with respect to the support shaft 86. The other ends of each of the two connecting parts 88 are fixed to the recovery plate 51. As a result, as shown by the arrow A2 in FIG. 5, the recovery plate 51 is supported by the recovery plate support mechanism 52 so as to be tiltable around the support shaft 86. At this time, the recovery plate 51 is supported so as to be tiltable between a position where the recovery surface 500 is horizontal and a position where the recovery surface 500 is vertical, while contacting the corner portion 854 of the lower support member 85. As a result, the operator 91 can efficiently recover the powder placed on the recovery surface 500 by tilting the recovery plate 51. However, the recovery plate 51 does not necessarily have to be tiltable as long as it is supported by the lower support member 85. Also, the direction in which the recovery plate 51 is tilted may be the left-right direction with respect to the container body 11.

In this embodiment, the position where the two connecting parts 88 of the recovery plate 51 are fixed is closer to the rear than the central position 516 of the recovery plate 51. In other words, when the recovery plate 51 is attached to the container body 11 via the recovery plate support mechanism 52, the position where the two connecting parts 88 of the recovery plate 51 are fixed is closer to the container body 11. As a result, for example, when the use of the powdered material recovery mechanism 50 is temporarily suspended, the recovery plate 51 can be tilted and folded so that the recovery surface 500 is vertical, thereby reducing the arrangement space of the entire powdered material processing device 1 including the powdered material recovery mechanism 50.

Furthermore, the covered powder/granular material storage container 10 is provided with a locking member 89. The locking member 89 has a locking member main body 891 and a lever portion 892. In this embodiment, the locking member main body 891 is fixed to the outer circumferential surface of the container main body 11 above the position on the outer circumferential surface of the container main body 11 where the lower support member 85 is fixed. The lever portion 892 is supported rotatably about a rotation shaft 890 extending in the front-rear direction relative to the locking member main body 891. As shown by arrow A3 in FIG. 5, the lever portion 892 is rotatable between a limiting position Pl and an unlimiting position Pnl.

When the lever portion 892 is in the limiting position Pl, if the recovery plate 51 is tilted in the direction indicated by the arrow A2, it comes into contact with the lever portion 892. In other words, the inclination of the recovery plate 51 can be limited by the locking member 89. As a result, by positioning the lever portion 892 in the limiting position Pl, it is possible to prevent the recovery plate 51 from being inclined significantly abruptly, causing the powder placed on the recovery surface 500 to fall onto the floor, etc.

In addition, the lever portion 892 of this embodiment can fix the rotational position in small increments between the limiting position Pl and the non-limiting position Pnl. This makes it possible to adjust the position at which the recovery plate 51 contacts the lever portion 892 when the recovery plate 51 is tilted in the direction indicated by the arrow A2. In other words, the locking member 89 can adjust the angle at which the recovery plate 51 can be tilted. As a result, for example, the worker 91 can sweep up and recover powder and granular material placed on the recovery surface 500 while gradually increasing the inclination of the recovery plate 51, thereby further improving workability.

However, the structure of the locking member 89 is not limited to this. The locking member 89 may be a bolt or the like that can be attached to any vertical position on the outer circumferential surface of the container body 11 above the recovery plate 51.

The shape of the recovery plate 51 is not limited to the above shape. Figures 6 and 7 are side views of a recovery plate 51 according to a modified example, seen from the rear. These recovery plates 51 are similarly fixed to the lower support member 85 via the above-mentioned connecting portion 88.

As shown in the modified example of FIG. 6, the recovery plate 51 has a bottom surface portion 511 and three bent portions 512, and the bottom surface portion 511 may include a first bottom surface portion 71 that extends in a direction perpendicular to the three bent portions 512, and a plurality of (two in this embodiment) second bottom surface portions 72. The plurality of (two in this embodiment) second bottom surface portions 72 may be inclined with respect to the first bottom surface portion 71 and the three bent portions 512 so that the space inside the recovery plate 51 converges as it approaches the first bottom surface portion 71. The first bottom surface portion 71 and the second bottom surface portion 72 may form a recovery surface 500 that faces vertically the lower surface of the upper cover 12 located in the above-mentioned open position Po.

Also, as shown in the modified example of FIG. 7, the recovery plate 51 has a bottom surface portion 511 and three bent portions 512, and the bottom surface portion 511 may have a curved shape such that the space inside the recovery plate 51 converges as it approaches the center of the bottom surface portion 511. The bottom surface portion 511 may form a recovery surface 500 that vertically faces the lower surface of the upper cover 12 located in the above-mentioned open position Po.

The following is an overview of a method for recovering powder and granular material that has fallen from the top lid 12 of the powder and granular material storage container 10 to the outside of the container body 11 using the powder and granular material recovery mechanism 50 of this embodiment. First, after the powder and granular material stirring and mixing process in the internal space 100 of the container body 11 and the discharge process of discharging the stirred and mixed powder and granular material from the internal space 100 are completed, the lower support member 85 to which the recovery plate 51 is previously fixed via the connecting portion 88 is fixed to the container body 11 before the top lid 12 is moved to the open position Po. Then, the top lid 12 is moved to the open position Po, and the powder and granular material that has fallen from the top lid 12 is placed on the recovery surface 500. Furthermore, an operator 91 gradually tilts the recovery plate 51 to sweep up and recover the powder and granular material placed on the recovery surface 500.

2. Modifications
Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment.

8 and 9 are perspective views of a powdered material recovery mechanism 50B according to a modified example. The powdered material recovery mechanism 50B according to the modified example of FIG. 8 does not have the lower support member 85 according to the above embodiment, but has a converging portion 514B. The converging portion 514B has a funnel shape that extends vertically in a cylindrical shape and gradually converges downward. A recovery port 510B is formed at the lower end of the converging portion 514B. Furthermore, in the modified example of FIG. 9, a cylindrical portion 515B is formed that extends downward from the recovery port 510B in a cylindrical shape. The powdered material recovery mechanism 50B according to the modified examples of FIG. 8 and FIG. 9 is supported by a support mechanism having casters (not shown).

When the powdered or granular material recovery mechanism 50B according to the modified example of FIG. 8 and FIG. 9 is used to recover the powdered or granular material in the same manner as in the above embodiment, the powdered or granular material recovery mechanism 50B is placed in advance close to the container body 11. As a result, at least a part of the inner surface of the converging portion 514B (in this modified example, the entire inner surface of the converging portion 514B) forms a recovery surface 500B that faces the lower surface when the top cover 12 is in the open position Po. Then, the top cover 12 is moved to the open position Po, and the powdered or granular material that has fallen from the top cover 12 is placed on the recovery surface 500B. Here, the recovery surface 500B of the powdered or granular material recovery mechanism 50B according to the modified example of FIG. 8 and FIG. 9 is inclined toward the recovery port 510B. Therefore, the powdered or granular material placed on the recovery surface 500B is naturally collected at the recovery port 510B and discharged. As a result, the operator 91 can easily recover the powdered or granular material discharged from the recovery port 510B. Also, if a trash can or the like is placed below the collection port 510B, the labor of the worker 91 can be reduced.

In addition, in the above embodiment and modified examples, a vibration device that vibrates the collection surface may be provided separately to collect the powder placed on the collection surface more quickly or automatically.

The detailed configuration of the powder/granular material processing device may differ from the configuration shown in each drawing of this application. In addition, the elements appearing in the above embodiments and variations may be combined as appropriate to the extent that no contradiction occurs.

LIST OF SYMBOLS 1 Powder/Grain Processing Apparatus 10 Lidded Powder/Grain Storage Container 11 Container Body 12 Top Lid 21 Agitating Blade 30 Driving Section 40 Powder/Grain Discharge Section 50, 50B Powder/Grain Recovery Mechanism 51 Recovery Plate 52 Recovery Plate Support Mechanism 85 Lower Support Member 86 Support Shaft 88 Connecting Section 89 Locking Member 100 Internal Space 110 Opening 111 Bottom Plate Section 112 Side Wall Section 113 Bolt Hole 500, 500B Recovery Surface 511 Bottom Surface Section 512 Bending Section 514B Converging Section 516 Central Position (of Recovery Plate) 851 Upper Surface (of Lower Support Member) 852 Bending Section 853 Bolt Through Hole Pc Closed Position Pl Restricted Position Pnl Non-Restricted Position Po Open Position

Claims (11)

a powder/granular material storage container with a lid, the powder/granular material storage container having a cylindrical container body with a bottom and an upper lid capable of closing an upward opening of the container body, the powder/granular material being stored in an internal space of the container body;
A stirring blade for stirring the powder or granular material contained in the internal space;
an upper cover support mechanism that supports the upper cover so as to be laterally movable between a closing position in which the upper cover closes the opening and an opening position in which the upper cover opens at least a portion of the opening;
a powder/granular material recovery mechanism that recovers powder/granular material that has fallen from the upper lid to the outside of the container body;
having
The powder and granular material recovery mechanism includes:
The powder/granular material processing apparatus has a recovery surface that faces vertically a lower surface of the upper lid when the upper lid is in the open position. The powder/granular material processing apparatus according to claim 1,
The powder and granular material recovery mechanism includes:
A plate-shaped recovery plate having the recovery surface on at least a portion thereof;
a recovery plate support mechanism that supports the recovery plate in a tiltable manner;
The powder and granular material processing device has the following features. The powder/granular material processing apparatus according to claim 2,
The powder and granular material storage container with a lid is
The powder/granular material processing apparatus has a locking member capable of limiting the inclination of the recovery plate. The powder/granular material processing apparatus according to claim 3,
The recovery plate support mechanism includes:
a lower support member having an upper surface that extends horizontally and contacts a portion of the recovery plate;
The powder/granular material processing apparatus, wherein the lower support member is directly or indirectly fixed to the container body at any position in the vertical direction. The powder/granular material processing apparatus according to claim 3 or 4,
The locking member is capable of adjusting the inclination of the recovery plate. The powder/granular material processing apparatus according to claim 4,
The recovery plate support mechanism includes:
a support shaft that is directly or indirectly fixed to an end of the lower support member and that is installed parallel to an upper surface of the lower support member;
Two connecting parts, one end of each of which is rotatably attached to the support shaft;
having
The other ends of the two connecting portions are fixed to the recovery plate, respectively. The powder/granular material processing apparatus according to claim 6,
A powder or granular material processing apparatus, wherein a position on the recovery plate to which the two connecting portions are fixed is closer to the container body than a center position on the recovery plate. The powder/granular material processing apparatus according to any one of claims 2 to 7,
The recovery plate is
A bending portion is provided at an end of the recovery surface,
The bent portion bends upward when the recovery surface is horizontal. The powder/granular material processing apparatus according to any one of claims 2 to 8,
The powder/granular material processing apparatus, wherein the recovery plate is made of an aluminum alloy. The powder/granular material processing apparatus according to claim 1,
The powder and granular material recovery mechanism includes:
A converging portion having a funnel shape that extends in a vertical direction and gradually converges downward,
At least a portion of an inner surface of the converging portion forms the recovery surface. The powder/granular material processing apparatus according to any one of claims 1 to 10,
The powder/granular processing apparatus, wherein the recovery surface is subjected to a coating treatment containing a fluororesin.

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