Powder and granular material filling method and powder and granular material filling device

Abstract

To increase bulk density by applying vibration to a container to be filled with powder and granular material with a simple structure without requiring additional power.SOLUTION: There is provided a filling method for powder and granular material W for moving a plurality of consecutive containers 2 along a predetermined conveying route R and supplying the powder and granular material W to the container 2 that has reached a supply position R1. In the method, a striking section 40 having a base end 41 fixed outside a movement trajectory S of the container 2, a tip end 42 located inside the movement trajectory S and supported in a cantilevered state, and a connecting section 45 that elastically connects between the base end 41 and the tip end 42 is used to cause the tip end 42 to abut against a preceding container 2L and to be displaced as the preceding container 2L moves, thereby elastically deforming the connecting section 45. With the further movement of the preceding container 2L, the tip end 42 moving away from the preceding container 2L causes the elastic deformation to be released, thereby causing the tip end 42 to strike a following container 2T.SELECTED DRAWING: Figure 5C

Description

Technical Field

[0001] The present invention relates to a method for filling powder and granular materials and an apparatus for filling powder and granular materials.

Background Art

[0002] Patent Document 1 discloses that crushed sponge titanium particles as powder and granular materials are filled into a drum can through a distributor. Since the powder and granular materials are poured and supplied from above the drum can, voids are likely to occur between the powder and granular materials filled in the drum can, and the bulk density is likely to be low.

[0003] Patent Document 2 discloses that in a rotary powder filling apparatus, in order to increase the bulk density of powder during the filling operation, vibration is applied while lifting the container into which the powder is filled.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0005] The apparatus of Patent Document 2 requires a lift mechanism for lifting the container and a vibrator for applying vibration to the lifted container, which complicates the structure of the apparatus and also requires separate power for driving the vibrator.

[0006] An object of the present invention is to provide a method for filling powder and granular materials and an apparatus for filling powder and granular materials, which can increase the bulk density by applying vibration to a container filled with powder and granular materials with a simple structure without requiring separate power.

Means for Solving the Problems

[0007] One aspect of the present invention is In a method for filling a granular material, a plurality of consecutive containers are moved along a predetermined conveyance route, and the granular material is supplied to the container that has reached the supply position, using a striking portion having a base end portion fixed outside the movement locus of the container, a tip end portion located inside the movement locus and supported in a cantilever state with respect to the base end portion, and a connecting portion that elastically connects between the base end portion and the tip end portion, by bringing the tip end portion into contact with the leading container of a pair of containers including the consecutive leading and trailing containers among the plurality of containers and displacing it as the leading container moves, elastically deforming the connecting portion, and when the tip end portion separates from the leading container as a result of further movement of the leading container, releasing the elastic deformation to cause the tip end portion to strike the trailing container, A method for filling a granular material is provided, including this.

[0008] According to the present invention, by striking the container with the striking portion, vibration can be imparted to the container, and the bulk density of the granular material in the container can be improved. Further, by utilizing the movement of the container, elastic energy can be stored in the striking portion and the striking portion can be driven by the stored elastic energy. Therefore, no separate power for driving the striking portion is required, and further, no detecting means for detecting the movement of the container is needed, so that the striking portion can be realized with a simple configuration and can be realized at low cost and energy saving.

[0009] Another aspect of the present invention is In a granular material filling apparatus that moves a plurality of consecutive containers along a predetermined conveyance route and supplies the granular material to the container that has reached the supply position, it includes a striking portion having a base end portion fixed outside the movement locus of the container, a tip end portion located inside the movement locus and supported in a cantilever state with respect to the base end portion, and a connecting portion that elastically connects between the base end portion and the tip end portion, The striking portion is When the tip portion abuts against the leading container among a pair of containers including the leading container and the trailing container that are consecutive among the plurality of containers and is displaced as the leading container moves, the connecting portion is elastically deformed. Provided is a powder and granular material filling device in which, as a result of further movement of the leading container, when the tip portion is separated from the leading container, the elastic deformation is released, and the tip portion strikes the trailing container.

Brief Description of the Drawings

[0010]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5A

Figure 5B

Figure 5C

Figure 6A

Figure 6B

Embodiments for Carrying Out the Invention

[0011] Hereinafter, a method for filling a powder and granular material W and a powder and granular material filling device according to an embodiment of the present invention will be described with reference to the accompanying drawings. Note that the following description is merely illustrative in nature and is not intended to limit the present invention, its applications, or its uses.

[0012] FIG. 1 shows a plan view of a filling device 1 for a granular material W according to an embodiment of the present invention. As shown in FIG. 1, the filling device 1 includes a container conveying unit 10 that moves a plurality of containers 2 along a predetermined conveying route R, a granular material supply unit 20 that supplies the granular material W to the containers 2, and a funnel 30 that receives the granular material W supplied by the granular material supply unit 20 and guides it into the containers 2.

[0013] In this embodiment, the granular material W is crushed sponge titanium and includes sponge titanium pieces and sponge titanium powder. The predetermined conveying route R is an annular shape centered on a central axis O1 extending in the vertical direction. A supply position R1 where the granular material W is supplied from the granular material supply unit 20 is provided on the conveying route R.

[0014] FIG. 2 is a side view showing the periphery of the container 2 located at the supply position R1. As shown in FIG. 2, the container 2 is a cylindrical body with an open upper end, and for example, a metal drum can be adopted. The container 2 has a bottom wall portion 2a and a peripheral wall portion 2b extending upward from the peripheral edge of the bottom wall portion 2a. Two annular ribs 3 are formed on the peripheral wall portion 2b, protruding outward and extending in the circumferential direction at vertically spaced positions. The container 2 may have a capacity of 100 L or more and is sized to accommodate at least 100 kg of the granular material W. The containers 2 are arranged continuously in an annular shape along the conveying route R.

[0015] Returning to FIG. 1, the container conveying unit 10 includes a plurality of container support portions 11 on which a plurality of containers 2 arranged in an annular shape around the central axis O1 are placed, and a rotation driving unit 12 that rotates the container support portions 11 around the central axis O1. The container conveying unit 10 moves the containers 2 placed on the container support portions 11 along the conveying route R centered on the central axis O1 by rotating the container support portions 11 around the central axis O1 by the rotation driving unit 12. In this embodiment, the rotation driving unit 12 moves the plurality of containers 2 counterclockwise around the central axis O1.

[0016] The granular material supply unit 20 is a conveying means for conveying the granular material cut out from a hopper (not shown), and for example, a belt conveyor can be adopted. The tip of the granular material supply unit 20 is located directly above the supply position R1 of the conveying route R, and the conveyed granular material W is poured and filled into the container 2 that has reached the supply position R1 from above through the funnel 30.

[0017] A plurality of funnels 30 are provided in pairs for each of the plurality of containers 2. In the present embodiment, the plurality of funnels 30 are provided integrally, but they may be provided individually. In FIG. 1, the funnel 30 is shown in a state where a part thereof is cut out by a two-dot chain line in the circumferential direction. Each of the plurality of funnels 30 rotates around the central axis O1 together with the corresponding container 2. The funnel 30 has an inclined portion 31 that inclines downward toward the inner diameter side, and an opening 32 that extends downward from the lower end of the inclined portion 31 and is located above the corresponding container 2.

[0018] That is, each of the plurality of containers 2 is moved around the central axis O1 along the conveying route by the container conveying unit 10 and sequentially reaches the supply position R1. At the supply position R1, the granular material W supplied from the granular material supply unit 20 is received by the inclined portion 31 of the funnel 30 and is supplied from the opening 32 to the container 2 located directly below.

[0019] In the filling device 1, the container conveying unit 10 conveys the plurality of containers 2 at a constant speed around the central axis O1 along the conveying route without stopping, and the granular material W is supplied from the granular material supply unit 20 to each container 2 passing through the supply position R1. The speeds of the container conveying unit 10 and the granular material supply unit 20 are set so that each container 2 is filled with a predetermined amount of the granular material W after moving a predetermined number of revolutions (for example, several hundred revolutions). As a result, the granular material W in the hopper (not shown) is evenly filled into the plurality of containers 2 from immediately after cutting out to the end of cutting out. That is, the variation in the properties (for example, particle size distribution) of the granular material W for each container 2 due to the timing of cutting out from the hopper is suppressed.

[0020] The filling device 1 further includes a striking part 40 that imparts vibration to the container 2 by impact. In the present embodiment, the striking parts 40 are provided in a pair symmetrically with respect to the central axis O1, and one of the striking parts 40 is arranged at a position where it strikes the container 2 located at the supply position R1.

[0021] The striking part 40 has a base end part 41 fixed outside the movement locus S of the container 2 (that is, it does not displace as the container 2 moves), a tip end part 42 located inside the movement locus S and supported in a cantilever state with respect to the base end part 41, and a connecting part 45 that elastically connects between the base end part 41 and the tip end part 42.

[0022] As shown in FIG. 2, the base end part 41 is fixed to a handrail 5 surrounding the periphery of the filling device 1 at the upper end part 41a and the lower end part 41b, for example, by fastening means. FIG. 3 is a side view showing an enlarged main part of the striking part 40, showing a partial cross section. FIG. 4 is a plan view of the striking part 40. Referring to FIGS. 3 and 4 together, the base end part 41 is a pipe member extending in the vertical direction.

[0023] The tip end part 42 has a cylindrical roller 43 whose axis extends in the vertical direction, and a roller support part 44 that rotatably supports the roller 43 around this axis. The roller 43 is configured such that in a side view, the position and size in the height direction at least straddle the upper and lower annular ribs 3 of the container 2. The outer peripheral part of the roller 43 is formed of a material softer than the container 2, for example, made of rubber or resin. When viewed from a direction orthogonal to the direction in which the connecting part 45 extends in the horizontal direction in a state where the connecting part 45 is not elastically deformed, the roller 43 substantially coincides with the axis of the container 2.

[0024] The connecting portion 45 has four connecting members 50 arranged side by side vertically and each extending in the horizontal direction. Referring to FIGS. 3 and 4, the connecting member 50 located at the uppermost position among the respective connecting members 50 will be described as an example. The connecting member 50 includes a first cylindrical member 52 fixed to the base end portion 41 via a bracket 51 and extending in the horizontal direction, and a second cylindrical member 53 whose tip end portion is fixed to the roller support portion 44, for example, by welding and extending in the horizontal direction concentrically with the first cylindrical member 52. The second cylindrical member 53 is entirely located on the tip end portion 42 side with respect to the first cylindrical member 52.

[0025] A first bolt 54 is fastened to the first cylindrical member 52 from above. A second bolt 55 is fastened to the second cylindrical member 53 from above. The first bolt 54 and the second bolt 55 are connected by a wire 56. Specifically, one end portion 56a of the wire 56 is fastened and fixed in a state of being wound around the shaft portion 54b of the first bolt 54 between the head portion 54a of the first bolt 54 and the first cylindrical member 52. The other end portion 56b of the wire 56 is fastened and fixed in a state of being wound around the shaft portion 55b of the second bolt 55 between the head portion 55a of the second bolt 55 and the second cylindrical member 53.

[0026] A compression coil spring 57 is provided in a state of being axially compressed between the first cylindrical member 52 and the second cylindrical member 53 so as to urge them away from each other in the axial direction. Half of the compression coil spring 57 on the base end portion 41 side is inserted into the inner peripheral portion of the first cylindrical member 52. The second cylindrical member 53 is inserted into half of the compression coil spring 57 on the tip end portion 42 side. The base end portion 57a of the compression coil spring 57 abuts against the shaft portion 54b of the first bolt 54, and the tip end portion 57b abuts against the head portion 55a of the second bolt 55.

[0027] That is, the compression coil spring 57 is elastically installed between the first cylindrical member 52 and the second cylindrical member 53 connected by the wire 56. As a result, combined with the fact that the second cylindrical member 53 is generally located on the tip 42 side with respect to the first cylindrical member 52, the tip 42 can be elastically deformed in the vertical and horizontal directions with respect to the base end 41. Further, the wire 56 suppresses the sagging of the second cylindrical member 53 with respect to the first cylindrical member 52, and maintains the posture in which the second cylindrical member 53 extends horizontally along the extension direction of the first cylindrical member 52.

[0028] Next, the operation of the striking part 40 will be described. First, the state where the roller 43 of the striking part 40 is located on the downstream side of the conveyance route with respect to the outer peripheral part (annular rib 3) of the container 2 is taken as the start. For convenience of explanation, in the following description, among the pair of containers 2 arranged in the front and rear along the conveyance route R, the container 2 passing through the supply position R1 is defined as the preceding container 2L, and the container 2 following this is defined as the succeeding container 2T.

[0029] As shown in FIG. 1, as the preceding container 2L is conveyed counterclockwise by the container conveyance part 10, the roller 43 abuts against the outer peripheral part of the preceding container 2L from the downstream side in the conveyance direction.

[0030] Next, as shown in FIG. 5A, as the preceding container 2L is further conveyed counterclockwise by the container conveyance part 10, the roller 43 is pushed by the preceding container 2L, and thus is displaced counterclockwise with the tip of the first cylindrical member 52 as the base point. At this time, the compression coil spring 57 is elastically deformed counterclockwise with the tip of the first cylindrical member 52 as the base point.

[0031] Next, as shown in FIG. 5B, as the container conveying unit 10 further conveys the preceding container 2L in the counterclockwise direction, the roller 43 is further pushed against the preceding container 2L, causing the tip of the first cylindrical member 52 to further displace in the counterclockwise direction about the tip as a reference point. The state shown in FIG. 5B indicates a state where the roller 43 is in contact with the position farthest from the central axis O1 of the preceding container 2L. In this state, the roller 43 is displaced the most in the counterclockwise direction.

[0032] At this time, the compression coil spring 57 is in a state of being elastically deformed the most in the counterclockwise direction with the tip of the first cylindrical member 52 as a reference point. In the present embodiment, the striking portion 40 is configured such that the bending angle A, which is the angle difference between the axis of the first cylindrical member 52 and the axis of the second cylindrical member 53, is 45° or more and 50° or less when the compression coil spring 57 is elastically deformed the most.

[0033] Furthermore, as shown in FIG. 5C, as the container conveying unit 10 further conveys the preceding container 2L in the counterclockwise direction, the roller 43 separates from the outer peripheral portion (annular rib 3) of the preceding container 2L, releasing the elastic deformation of the compression coil spring 57. As a result, the roller 43 rotates in the clockwise direction by the elastic restoring force of the compression coil spring 57. At this time, the subsequent container 2T is being conveyed in the counterclockwise direction. That is, the rotation of the roller 43 in the clockwise direction and the conveyance of the subsequent container 2T in the counterclockwise direction occur simultaneously, and an impact by the striking portion 40 is effectively input to the subsequent container 2T.

[0034] As described above, since the axis of the roller 43 coincides with the axis of the container 2 in the side view in FIG. 2, the striking force by the roller 43 is input toward the center of the subsequent container 2T. Thereby, the subsequent container 2T can be struck evenly, and vibration can be efficiently applied to the subsequent container 2T. Although not limited, it is preferable that the bending angle A of the compression coil spring 57 becomes zero when the roller 43 strikes the subsequent container 2T.

[0035] Preferably, the spring constant and the bending angle A of the compression coil spring 57 are set so that the striking force by the striking portion 40 is 320 N or more and 8000 N or less, more preferably 640 N or more and 4000 N or less. In the present embodiment, the striking force by the striking portion 40 is set to 1600 N. Note that if the striking force is less than 320 N, the above effects may not be sufficiently obtained. If the striking force exceeds 8000 N, the subsequent container 2T may be deformed and / or the powder material W in the subsequent container 2T may scatter outside the subsequent container 2T due to the impact, which is not preferable.

[0036] Here, a pair of upper and lower annular ribs 3 are provided on the outer peripheral portion of the container 2, and the striking portion 40 (roller 43) is configured to strike both of the pair of upper and lower annular ribs 3 simultaneously. As a result, it is easy to propagate the impact to the subsequent container 2T as a whole through the pair of upper and lower annular ribs 3. As shown in FIG. 6A, the packing state of the powder material W before the strike is such that the voids that can be interposed between the powder materials W after the strike are reduced, thereby increasing the bulk density of the powder material.

[0037] Moreover, since the roller 43 strikes the annular rib 3 of the subsequent container 2T, it does not directly strike the portion other than the annular rib 3. Further, since the roller 43 is rotatably provided, even when the container 2 is conveyed in a state of being in contact with the annular rib 3, it is not dragged against the annular rib 3.

[0038] Hereinafter, as shown in FIGS. 5A to 5C, as the container 2 moves, elastic energy is stored by elastically deforming the compression coil spring 57, and the roller 43 is driven by releasing the elastic deformation to strike the subsequent container 2T, which is sequentially executed for the subsequent containers 2.

[0039] In the present embodiment, while the plurality of containers 2 are being conveyed along the conveyance route R, they are struck by the striking portion 40 twice per revolution, and this is executed over a plurality of revolutions until the filling of the granular material W in the container 2 reaches a predetermined amount. As a result, compared to the case where an impact is applied to the container 2 after filling a predetermined amount of the granular material W (for example, when filling a predetermined amount of the granular material W at once), since an impact is applied to the container 2 every time a small amount of the granular material W is filled, it is possible to reduce the voids that can intervene between the granular material W during filling, and thus it is easier to increase the bulk density.

[0040] According to the method for filling the granular material W and the filling apparatus 1 for the granular material W according to the above-described embodiment, the following effects are obtained.

[0041] (1) According to the method for filling the granular material W according to the above-described embodiment, while moving a plurality of consecutive containers 2 along a predetermined conveyance route R, the granular material W is supplied to the container 2 that has reached the supply position R1 provided on the conveyance route R among the plurality of containers 2, using a striking portion 40 having a base end portion 41 fixed outside the movement locus S of the container 2, a tip end portion 42 located inside the movement locus S and supported in a cantilever state with respect to the base end portion 41, and a connecting portion 45 that elastically connects the base end portion 41 and the tip end portion 42, the tip end portion 42 is brought into contact with the preceding container 2L among a pair of containers 2 including the preceding container 2L and the succeeding container 2T that are consecutive among the plurality of containers 2 and is moved along with the movement of the preceding container 2L, thereby elastically deforming the connecting portion 45, when the tip end portion 42 is separated from the preceding container 2L as a result of further movement of the preceding container 2L, the elastic deformation is released, causing the tip end portion 42 to strike the succeeding container 2T.

[0042] As a result, the striking part 40 can vibrate the container 2 to improve the bulk density of the granular material W in the container 2. Also, by utilizing the movement of the container 2, elastic energy can be stored in the striking part 40 and the striking part 40 can be driven by the stored elastic energy. Therefore, no separate drive source for driving the striking part 40 is required, and no detection means for detecting the movement of the container 2 is needed either. Thus, the striking part 40 can be realized with a simple configuration and can be realized at low cost and with energy savings.

[0043] Furthermore, since no electrical system that may be associated with operating a drive source for driving the striking part 40 and detection means is required, the occurrence of sparks, static electricity, etc. that may be caused by any malfunction of the electrical system can also be prevented. Thereby, even when the granular material W contains a material that is prone to ignition, such as sponge titanium powder grains, the risk of ignition of the granular material W due to the electrical system can be reduced.

[0044] (2) The granular material W is sponge titanium grains, The container 2 may have a weight of 118 kg or more and a volume of 100 L or more when filled with the granular material W. As a result, in the case of the container 2 being a large and heavy object where it is difficult to apply vibration to the container manually, the effects of the above invention are particularly preferably exhibited.

[0045] (3) The container 2 has a bottom wall portion 2a and a peripheral wall portion 2b extending upward from the peripheral edge of the bottom wall portion 2a. On the peripheral wall portion 2b, two annular ribs 3 are formed that protrude outward and extend in the circumferential direction at vertically spaced positions. The striking by the tip portion 42 may be performed on both of the two annular ribs 3 of the container 2.

[0046] As a result, by striking the container 2 through two annular ribs 3 spaced apart vertically in the peripheral wall portion 2b of the container 2, vibrations can be imparted to the container 2 over a wide range (entirely) in the height direction and the circumferential direction. Moreover, since the highly rigid annular ribs 3 of the container 2 are struck, deformation of the container 2 due to the strike is prevented. Further, when information such as company name, product identification information of product name, and process management information such as lot number is printed on a location other than the two annular ribs 3 in the peripheral wall portion 2b of the container 2 (for example, between the two annular ribs 3), it is possible to prevent the information printed by the strike from disappearing.

[0047] (4) The tip 42 may be constituted by a roller 43 and may be rolled along the outer peripheral surface of the moving container 2 when the roller 43 is pressed against the outer peripheral surface of the container 2.

[0048] As a result, since the tip 42 rolls along the outer peripheral surface of the container 2, it is difficult for the tip 42 to be dragged along the outer peripheral surface of the container 2. Thus, it is possible to prevent a trace of the tip 42 from remaining on the container 2 when the tip 42 is dragged along the outer peripheral surface of the container 2, and thus prevent the container 2 from getting dirty.

[0049] Note that the method for filling a granular material and the granular material filling device according to the present invention are not limited to the configurations of the above embodiments, and various modifications are possible.

[0050] In the above embodiment, the striking portion 40 is configured such that the tip 42 is located on the movement locus S of the container 2. Instead, the striking portion 40 may be configured to be selectively fixed to either one of an operating position where the tip 42 is located on the movement locus S of the container and a retracted position where the tip 42 is located outside the movement locus S of the container 2. When the striking portion 40 is fixed to the operating position, vibrations can be imparted to the container 2 by the striking portion 40, and when the striking portion 40 is moved to the retracted position, the strike on the container 2 by the striking portion 40 can be stopped.

[0051] In the above-described embodiment, the connecting portion of the striking portion 40 is configured by four connecting members 50, but the present invention is not limited thereto. That is, the connecting member 50 may be configured by one, two, three, or five or more.

[0052] In the above-described embodiment, the striking portions 40 are provided at two locations symmetrically with respect to the central axis O1, but the present invention is not limited thereto. That is, the striking portion 40 may be provided at only one location, or may be provided at three or more locations. When a plurality of striking portions 40 are provided, they may be arranged at equal intervals or at unequal intervals.

[0053] In the above-described embodiment, the compression coil spring 57 is adopted as the elastic member for the connecting portion 45, but an appropriate elastic member that can be displaced in the horizontal direction, such as a leaf spring, can be adopted.

[0054] In the above-described embodiment, the case where a plurality of containers 2 are conveyed along the annular conveyance route R has been described as an example, but the present invention is not limited thereto. For example, the conveyance route R may be configured in a polygonal shape. Furthermore, the present invention may also be applied when the conveyance route R is configured in a linear shape that is not annular. In this case, vibrations will be applied to the containers 2 by the number of the striking portions 40.

[0055] The method for filling a granular material and the apparatus for filling a granular material according to the present invention provide the following aspects.

[0056] [Aspect 1] In a method for filling a granular material, a plurality of consecutive containers are moved along a predetermined conveyance route, and the granular material is supplied to the container that has reached the supply position. Using a striking portion having a base end portion fixed outside the movement locus of the container, a tip end portion located inside the movement locus and supported in a cantilever state with respect to the base end portion, and a connecting portion that elastically connects the base end portion and the tip end portion. By bringing the tip end portion into contact with the preceding container among a pair of containers including the consecutive preceding container and the succeeding container among the plurality of containers and displacing it as the preceding container moves, the connecting portion is elastically deformed. As a result of further movement of the preceding container, when the tip end portion is separated from the preceding container, the elastic deformation is released to strike the tip end portion against the succeeding container. A method for filling a granular material, including this.

[0057] [Aspect 2] The granular material is sponge titanium grains, The container has a weight of 118 kg or more and a volume of 100 L or more when filled with the granular material. The method for filling a granular material according to Aspect 1.

[0058] [Aspect 3] The container has a bottom wall portion and a peripheral wall portion extending upward from the peripheral edge of the bottom wall portion, On the peripheral wall portion, two annular ribs are formed that protrude outward and extend in the circumferential direction at vertically spaced positions. The striking by the tip end portion is performed on both of the two annular ribs of the container. The method for filling a granular material according to Aspect 1 or 2.

[0059] [Aspect 4] Roll the tip end portion along the outer peripheral surface of the moving container. The method for filling a granular material according to any one of Aspects 1 to 3.

[0060] [Aspect 5] A granular material filling device moves a plurality of consecutive containers along a predetermined conveyance route, supplies the granular material to the container that has reached the supply position, It has a base end portion fixed outside the movement locus of the container, a tip end portion located inside the movement locus and supported in a cantilever state with respect to the base end portion, and a connecting portion that elastically connects between the base end portion and the tip end portion, and is provided with a striking portion. The striking portion is When the tip portion abuts against a preceding container among a pair of containers including the preceding container and the succeeding container that are consecutive among the plurality of containers and is displaced as the preceding container moves, the connecting portion is elastically deformed. A powder and granular material filling device in which, as a result of further movement of the preceding container, when the tip portion is separated from the preceding container, the elastic deformation is released, thereby causing the tip portion to strike the succeeding container.

Explanation of Signs

[0061] 1 Filling device 2 Container 3 Annular rib 10 Container conveyance section 20 Powder and granular material supply section 30 Hopper 40 Striking section 41 Base end portion 42 Tip portion 43 Roller 45 Connecting portion 50 Connection member 52 First cylindrical member 53 Second cylindrical member 54 First bolt 55 Second bolt 56 Wire 57 Compression coil spring O1 Central axis R Conveyance route R1 Supply position W Powder and granular material S Movement locus

Claims

1. In a method for filling a granular material, a plurality of consecutive containers are moved along a predetermined conveying route, and the granular material is supplied to the containers that have reached the supply position, using a striking portion having a base end portion fixed outside the movement locus of the container, a tip end portion located inside the movement locus and supported in a cantilever state with respect to the base end portion, and a connecting portion that elastically connects between the base end portion and the tip end portion, wherein the tip end portion is brought into contact with the leading container among a pair of containers including the consecutive leading container and the subsequent container among the plurality of containers and displaced as the leading container moves, thereby elastically deforming the connecting portion, and as a result of further movement of the leading container, when the tip end portion is separated from the leading container, the elastic deformation is released, causing the tip end portion to strike the subsequent container, the method for filling a granular material including this.

2. wherein the granular material is sponge titanium particles, and the container has a weight of 118 kg or more and a capacity of 100 L or more when filled with the granular material, The method for filling a granular material according to Claim 1.

3. The container has a bottom wall portion and a peripheral wall portion extending upward from the peripheral edge of the bottom wall portion, and two annular ribs are formed on the peripheral wall portion, protruding outward and extending in the circumferential direction at vertically spaced positions, and the striking by the tip end portion is performed on both of the two annular ribs of the container, The method for filling a granular material according to Claim 1 or 2.

4. rolling the tip end portion along the outer peripheral surface of the moving container, The method for filling a granular material according to Claim 1 or 2.

5. A granular material filling device moves a plurality of consecutive containers along a predetermined conveying route and supplies the granular material to the containers that have reached the supply position, and includes a striking portion having a base end portion fixed outside the movement locus of the container, a tip end portion located inside the movement locus and supported in a cantilever state with respect to the base end portion, and a connecting portion that elastically connects between the base end portion and the tip end portion, wherein the striking portion, when the tip end portion comes into contact with the leading container among a pair of containers including the consecutive leading container and the subsequent container among the plurality of containers and is displaced as the leading container moves, the connecting portion is elastically deformed, A powder filling device in which, as a result of further movement of the preceding container, when the tip end is separated from the preceding container, the elastic deformation is released, causing the tip end to strike the subsequent container.

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