JP6905426B2 - Flexible container bag lifting jig - Google Patents

Description

According to the present invention, when powder is packed into a flexible container bag (abbreviation for flexible container bag, generally called a flexible container bag) from a shooter of a powder filling device such as a powder transfer loader, the flexible container is placed below the shooter. The present invention relates to a flexible container bag lifting jig used to lift and support a flexible container bag so that the bag does not fall or deform.

Conventionally, when packing powder from a powder transfer loader into a flexible container bag, first, the input port of the flexible container bag is manually covered on the outer circumference of the shooter of the powder transfer loader and bound with a string or a metal band, and then manually. Expand the flexible container bag by expanding the flexible container bag or inflating the flexible container bag by blowing air into the flexible container bag from the shooter of the powder transfer loader to expand the flexible container bag into a three-dimensional shape, and operate the powder transfer loader from this state. Then, the powder discharged from the shooter is put into the flexible container bag. Then, when the filling of the powder is completed, the input port of the flexible container bag is manually removed from the shooter, and the input port is tied with a string and sealed.

In addition, the flexible container bag used for storing such powder has conventionally been of the type of a chimney type with a round bottom and an upper inlet, and a four-fulcrum suspension having two shoulder straps, and the upper part is particularly the body. It is a thick fabric as well as. In the case of this flexible container bag, when the powder is added according to the above procedure, the shape of the flexible container bag is reduced and deformed. Therefore, the flexible container bag is manually suspended and supported to maintain its three-dimensional shape while being packed with powder. Was going.

However, although this flexible container bag is made of a thick and solid material as a whole and is relatively suitable for stuffing powder, it is expensive on the other side, and an increase in cost has been a problem. Therefore, we decided to use a general-purpose flexible container bag. This flexible container bag has a round bottom or a square bottom and a tapered upper part, and has four shoulder straps and is suspended at eight fulcrums. It's getting thinner. When powder was added to this flexible container bag according to the above procedure, the body of the flexible container bag sank greatly due to the thin fabric at the top, making it difficult to manually suspend and support the flexible container bag, and the shape of the flexible container bag. Completed the stuffing while still deformed. In addition, the flexible container bag is placed on the trolley below the shooter, and the circumference of the flexible container bag is a basket, but as a result of completing the packing while the shape of the flexible container bag is deformed, the flexible container bag after powder filling Could not be taken out of the trolley.

In the case of this general-purpose flexible container bag, the body of the flexible container bag sinks significantly during powder injection. Therefore, in order to use this flexible container bag for storing powder, the flexible container bag is lifted to the height required for the suspension support. Therefore, it is necessary to prepare equipment for lifting the flexible container bag around the powder transfer loader.
Upon investigating this type of equipment, the following equipment has been proposed by Patent Document 1.

Patent Document 1 relates to a device for sucking and extracting powder from a flexible container bag, and Document 1 describes a device for lifting a flexible container bag.
This lifting device includes a lifting belt located on one side of the upper inlet of the flexible container bag and on the other side facing the flexible container bag, and a lifting device on one side and a lifting device on the other side that lift these hanging belts individually and freely. Be prepared.
In this case, the lifting devices are installed on a base frame provided on the ground facing both sides of the flexible container bag, and a pair of wires connected to the hanging belts on one side and the other side, and the flexible container bag. A lifting means for pulling these wires via a pair of pulleys located above is provided. Each of the lifting means is provided with an elevating shaft that is vertically driven by an inverter motor by a screw shaft or the like, and has a connecting frame extending in the horizontal direction at the tip of the elevating shaft, and wires are provided at both ends of the connecting frame in the longitudinal direction. One end of is attached.
Further, in this case, each of the hanging belts is connected to the other end of the wire of each lifting device via a lifting jig.
In this way, the lifting devices on one side and the other side are operated, and the hanging belt is lifted substantially evenly to lift the flexible container bag.

Japanese Unexamined Patent Publication No. 2015-86023

However, the conventional (Patent Document 1) lifting device for the flexible container bag is a large-scale mechanical equipment as a whole, and in particular, the wire for lifting the flexible container bag is considerably higher than the height required for the lifting support of the flexible container bag. Since it is extended to a high position and wrapped around a pulley, its installation requires sufficient space around the top of the powder transport loader without any obstacles, but powder around the top of the powder transport loader. If there are related equipment such as a hopper that stores the body, a meter that measures powder, and a powder mixer, this is the case unless these related equipment becomes an obstacle and the related equipment is relocated. There is a problem that it is impossible to install large-scale machinery and equipment, and it is practically extremely difficult to secure a separate space for relocating such related equipment.

The present invention solves such a conventional problem, and it is difficult or impossible to secure a sufficient space due to the related equipment around the upper part of a powder filling device such as a powder transfer loader. Even in a limited space, it can be installed compactly without interfering with related equipment, and conventional human power is used to prevent the flexible container bag from tipping over or deforming when packing powder from the powder filling device into the flexible container bag. The work of suspending and supporting the flexible container bag, which has been performed in the above, is automated by mechanization to prevent the flexible container bag from tipping over and deforming, and the flexible container bag of any shape can be reliably lifted to the height required for the suspension support. , The three-dimensional shape of the flexible container bag can be reliably maintained, and the flexible container bag can be taken out smoothly after filling with powder, and further, wear can be reduced even after long-term use. The purpose is to provide a flexible container bag lifting jig that can be used.

In order to achieve the above object, the flexible container bag lifting jig of the present invention is used.
The flexible container bag connected to the powder filling device on the lower base of the powder filling device to fill the powder. The flexible container bag is held on the upper part of the flexible container bag so as not to fall or deform. It is a flexible container bag lifting jig for lifting to a predetermined height required for hanging support.
(A) A pair of posts that are set up and installed at two points facing each other around the arrangement position of the flexible container bag on the base below the powder filling device.
(B) A pair of guide shafts arranged and fixed in parallel with the posts on both side surfaces of the posts in a direction perpendicular to the facing surfaces of the posts.
(C) A pair of elevating guides arranged so as to be elevated on each guide shaft of each post,
(D) A pair of rotation guides rotatably arranged on the outer peripheral surface of each elevating guide of each post, and
(E) A pair of hooks projecting horizontally from each rotation guide of each post, and
(F) The elevating guide is interposed between each post and each rotation guide of each post, and the elevating and lowering of each elevating guide on each guide shaft and the forward and reverse rotation of each rotation guide are interlocked to each other. As the elevating guides rise from the lower part to the upper part of the guide shafts, the rotation guides are rotated in the forward direction, and the pair of hooks are moved from a low predetermined position outside the arrangement position of the flexible container bag of the base to the flexible container bag of the base. The rotation guides are rotated in the reverse direction as the elevating guides descend from the upper part to the lower part of the guide shafts, and the pair of hooks of the flexible container bag of the base are used. A pair of elevating and rotating guide mechanisms that swivel from a high predetermined position on the placement position to a low predetermined position outside the placement position of the flexible container bag of the base.
(G) A pair of air cylinders that are installed in parallel in the vicinity of the guide shafts of the posts and that connect a piston rod to the elevating guides to elevate and drive the elevating guides, and the air cylinders and the above. A pressure reducing valve formed between a compressed air supply source that supplies compressed air to each air cylinder and supplies compressed air to each air cylinder at a predetermined set pressure, and a pressure reducing valve that supplies compressed air to each of the air cylinders. An ascending operation in which each piston rod of the air cylinder is extended to raise each elevating guide and each elevating guide is lowered by discharging compressed air from each air cylinder and contracting each piston rod of each air cylinder. An air supply circuit having a manual switching valve for switching to a descending operation, a pressure adjusting valve for adjusting the compressed air in each air cylinder to the predetermined set pressure, and the like.
With
A plurality of shoulder straps having a flexible container bag on the upper part are hung on each of the hooks, and the flexible container bag is connected to the powder filling device.
By the ascending operation of each of the air cylinders by the manual switching valve, each of the elevating guides is raised to the upper part of each of the guide shafts, and each of the hooks is ascended and swiveled via the elevating and reversing guide mechanism and the rotation guide. After projecting the flexible container bag to a high predetermined position on the placement position of the base flexible container bag and suspending the flexible container bag in the air,
By charging powder from the powder filling device into the flexible container bag and applying a predetermined load to each hook of each post, the air cylinders of each post are set to the predetermined settings by the action of the pressure adjusting valves. While adjusting the pressure, the hooks are slowly lowered to land the bottom of the flexible container bag on the base, and the hanging support and powder filling device of the flexible container bag by the hooks in the landing state of the flexible container bag. The powder is charged while the flexible container bag is shaped and held in a three-dimensional shape by the interaction between the charging of the powder into the flexible container bag and the slow descent of each hook accompanying the charging of the powder.
After filling the flexible container bag with powder, the manual switching valve lowers each elevating guide to the lower part of each guide shaft, and the hooks are lowered and swiveled via the elevating and reversing guide mechanism and the rotation guide. While removing each hook from each shoulder strap of the flexible container bag, the hook is pulled into a low predetermined position outside the arrangement position of the flexible container bag of the base.
The gist is that.
Further, it is preferable that each part of this jig has the following configuration.
(1) Each hook is normally provided with a spring member that rotates and urges the flexible container bag to the outside of the arrangement position on the base.
(2) Each pair of hooks of each post opens and protrudes in a substantially C shape at a high predetermined position on the arrangement position of the flexible container bag on the base.
(3) Each pair of elevating and turning guide mechanisms of each post has an arcuate guide mounting surface formed on both side surfaces of each post in the elevating range of each rotation guide in parallel with the outer peripheral surface of each rotation guide. , A guide roller projecting at a predetermined position facing each guide mounting surface on the outer peripheral surface of each rotation guide, and each guide roller of each rotation guide attached to each guide mounting surface of each post. Each guide roller is engaged with the top position at substantially the same height as a predetermined position high on the placement position of the flexon bag on the base, and is lower than the height of the top position and outside the placement position of the flexon bag on the base. Guide each hook up and down and linearly to and from an intermediate direction switching position set at an intermediate height higher than the height of a lower predetermined position, and guide each hook to a higher predetermined position on the position of the Frecon bag on the base. Vertically linear shape that guides up and down between the position of the above position and the position of the intermediate height that is lower than the height of the above-mentioned high predetermined position and higher than the height of the low predetermined position outside the placement position of the flexon bag on the base. The grooved rail and the linear grooved rail are connected to each other and engaged with the guide rollers to switch the guide rollers in the intermediate direction at the same height as the intermediate direction switching position and the lower predetermined position. The hooks are guided up and down and swiveled between the high predetermined position and the lowest position separated by an angle between the low predetermined position, and the hooks are guided to the intermediate height position and the low position. It is composed of an up-and-down swivel rail composed of a groove-shaped rail spiral in the vertical direction that guides the elevating and turning to a predetermined position.
(4) The base consists of a trolley and moves on a guide rail laid between the powder filling position directly under the powder filling device and the flexible container bag removal position after powder filling that is out of this powder filling position. Can be installed.

According to the flexible container bag lifting jig of the present invention, the flexible container bag has the above-mentioned configurations (a)-(g), and a plurality of shoulder cords having the flexible container bag on the upper part are hung on each hook to hang the flexible container bag into powder. While connected to the filling device, each air cylinder is lifted by the manual switching valve to raise each elevating guide to the upper part of each guide shaft, and each hook is swung up via each elevating swivel guide mechanism and rotation guide. After projecting the flexible container bag to a high predetermined position on the placement position of the flexible container bag of the base, the flexible container bag is suspended in the air, and then the powder is charged into the flexible container bag from the powder filling device, and a predetermined load is applied to each hook of each post. By hooking, each air cylinder of each post is adjusted to a predetermined set pressure by the action of each pressure adjusting valve, and each hook is slowly lowered to land the bottom of the flexible container bag on the base, and this flexible container is used. By the interaction between the suspension support of the flexible container bag by each hook in the landing state of the bag, the injection of powder from the powder filling device into the flexible container bag, and the slow descent of each hook accompanying the injection of this powder, the flexible container Powder is charged while the bag is shaped and held in a three-dimensional shape, and after filling the flexible container bag with powder, each elevating guide is lowered to the lower part of each guide shaft by a manual switching valve, and each elevating and turning guide mechanism and rotation guide. Each hook is swiveled downward through the flexible container bag to remove each hook from each shoulder string of the flexible container bag, and is pulled into a low predetermined position outside the placement position of the flexible container bag of the base. Even in a limited space where it is difficult or impossible to secure sufficient space due to related equipment around the upper part of the powder filling device, it can be installed compactly without interfering with the related equipment, and the powder can be installed. When packing powder from the filling device into the flexible container bag, the work of suspending and supporting the flexible container bag, which was conventionally performed manually so that the flexible container bag does not fall or deform, is automated by mechanization to save labor. In addition, any shape of flexible container bag can be reliably lifted to the height required for suspension support, and the three-dimensional shape of the flexible container bag can be reliably maintained. Moreover, the flexible container bag can be taken out after filling with powder. Further, it is possible to reduce wear even after long-term use, which is a special effect unique to the present invention.

The figure which shows the whole structure of the flexible container bag lifting jig by one Embodiment of this invention ((a) is a plan view (b) is a front view) Partially enlarged front view showing the configuration of the main part of the jig Partially enlarged plan view showing the configuration of the main part of the jig Partially enlarged plan view showing the configuration of the main part of the jig Partially enlarged plan view showing the configuration of the main part of the jig Partially enlarged front view showing the configuration of the main part of the jig The figure which shows the structure of the main part of the jig

Next, a mode for carrying out the present invention will be described with reference to the drawings.
FIG. 1 shows the overall configuration of the flexible container bag lifting jig.
As shown in FIG. 1, this flexible container bag lifting jig J (hereinafter, may be simply referred to as jig J in the following description) is a powder filling device such as a powder transfer loader L (hereinafter, simply a powder transfer loader). A plurality of flexible container bags F having a flexible container bag F above the base B below the base B so as to prevent the flexible container bag F connected to the shooter L1 of the powder transport loader L and filled with powder from falling or deforming. Two pairs of posts (posts) 1 and two pairs of two pairs of guide shafts 2 and 2 are used to lift the flexible container bag F to a predetermined height required for suspending support via the shoulder cord F1. A set of two pairs of elevating guides 3, two sets of two pairs of rotating guides 4, two sets of two pairs of hooks 5, and two sets of two pairs of elevating and rotating guide mechanisms 6 (see FIG. 4). ), Two sets of two pairs of air cylinders 7, an air supply circuit 8 (see FIG. 7), and a compressed air supply source (not shown). In FIG. 1, reference numeral 10 is a dustproof bellows.

As shown in FIG. 1, the pair of two posts 1 are erected and installed at two points facing each other around the arrangement position P of the flexible container bag F on the base B below the powder transfer loader L. In this case, each of these two posts 1 is composed of a square pipe having a substantially rectangular cross section with a horizontal cross section at substantially the same height as the upper portion of the shooter L1 of the powder transport loader L, and has two wide sides in the front-rear direction of the base B. With the two narrow sides facing the left and right sides of the base B, the left and right sides of the base B are close to the basket B1 on the outside of the circular basket B1 surrounding the arrangement position P of the flexible container bag F on the base B. Is erected.
In this case, the base B is composed of a trolley, and has a powder filling position directly under the powder transport loader L and a flexible container bag take-out position (not shown) in front of the powder transfer loader L after powder filling. It is movably installed on the guide rail B2 laid in the front-rear direction between them.

As shown in FIG. 1, two sets of two pairs of guide shafts 2 are arranged and fixed in parallel with each post 1 on both side surfaces in a direction perpendicular to the facing surfaces of each post 1 of each post 1. In this case, as shown in FIGS. 2 and 3, linear shafts are adopted for these four guide shafts 2, and each of these guide shafts 2 is before and after each post 1 as shown in FIG. The upper end of each guide shaft 2 is positioned near the upper end of each post 1 on one half of one side close to the basket B1 on the base B of each side surface, and is arranged parallel to each post 1, and each of the upper and lower ends. The portion is fixed and attached via a fixing member (on each side surface before and after each post 1).

As shown in FIG. 1, two sets of two pairs of elevating guides 3 are arranged so as to be able to elevate and elevate on each guide shaft 2 of each post 1. In this case, as shown in FIGS. 2 and 3, linear bearings (cylindrical linear motion bearings) are adopted for these four elevating guides 3, and these elevating guides 3 are each guide of each post 1. An outer fitting is arranged around the shaft 2 so as to be linearly movable along each guide shaft 2.

As shown in FIG. 1, two sets of two pairs of rotation guides 4 are rotatably arranged on the outer peripheral surface of each elevating guide 3 of each post 1. In this case, as shown in FIGS. 2 and 3, OILES bearings (cylindrical slide bearings) are adopted for these four rotary guides 4, and each of these rotary guides 4 is a guide shaft of each post 1. It is externally fitted and mounted on the outer peripheral surface of each elevating guide 3 on the 2 so that it can rotate (forward and reverse rotation). In this case, the forward rotation of each elevating guide 4 is the inward rotation (that is, the rotation toward each post 1) and the elevating of each elevating guide 4 when the elevating guide 4 is viewed from the arrangement position P side of the flexible container bag F. The reverse rotation of the guide 4 means an outward rotation (that is, a rotation opposite to the rotation toward each post 1) when each elevating guide 4 is viewed from the arrangement position P side of the flexible container bag F.

As shown in FIG. 1, two sets of two pairs of hooks 5 project horizontally from each rotation guide 4 of each post 1. In this case, as shown in FIGS. 2 and 3, these four hooks 5 consist of a shaft whose tip is bent diagonally upward toward the front end, and these hooks 5 each rotate each post 1. It is attached to the upper part of the guide 4 in a protruding shape in the horizontal direction via a support base unit 51 including a support base 51a and a support arm 51b.

As shown in FIG. 4, two sets of two pairs of elevating and turning guide mechanisms 6 are interposed between each post 1 and each rotation guide 4 of each post 1, and each elevating guide on each guide shaft 2. By interlocking the elevating of 3 and the forward and reverse rotation of each rotation guide 4, each rotation guide 4 is rotated forward (inwardly) as the guide shaft 2 of each elevating guide 3 rises from the lower part to the upper part, and each pair Hook 5 is swiveled from a low predetermined position D outside the arrangement position P of the flexible container bag F of the base B to a high predetermined position U on the arrangement position P of the flexible container bag F of the base B, and each guide of each elevating guide 4 As the shaft 2 descends from the upper part to the lower part, each rotation guide 4 is rotated in the reverse direction (rotates outward), and each pair of hooks 5 is moved from a high predetermined position U on the arrangement position P of the flexible container bag F of the base B to the base B. Turns to a low predetermined position D outside the arrangement position P of the flexible container bag F.
In this case, as shown in FIG. 5, these four elevating and turning guide mechanisms 6 each have an arc shape on both side surfaces of each post 1 in the elevating range of each rotation guide 4 parallel to the outer peripheral surface of each rotation guide 4. The guide mounting surface 11 of the above is formed, and is mounted on the guide roller 60 projecting at a predetermined position facing each guide mounting surface 11 on the outer peripheral surface of each rotation guide 4, and on each guide mounting surface 11 of each post 1. As shown in FIG. 6, the up-and-down swivel rail 61 is engaged with each guide roller 60 of each rotation guide 4, and each guide roller 60 is arranged on the base B by the flexon bag F. The height of the uppermost position H1 at substantially the same height as the high predetermined position U on the position P and the height of the lower predetermined position D outside the arrangement position P of the flexon bag F on the base B, which is lower than the height of the uppermost position H1. Guide each hook 5 up and down and linearly to and from the intermediate direction switching position H2 set at a high intermediate height, and guide each hook 5 to a high predetermined position U on the arrangement position P of the flexon bag F on the base B and this. A straight line in the vertical direction that guides up and down with the position H at an intermediate height lower than the height of the predetermined position U, which is lower than the height of the predetermined position U, and higher than the height of the predetermined position D, which is lower than the placement position P of the flexon bag on the base B. It is connected to the grooved rail 611 of the shape and the grooved rail 611 of the straight shape and engages with each guide roller 60 to engage each guide roller 60 at the same height as the intermediate direction switching position H2 and the lower predetermined position D and in the middle. Each hook 5 is guided to a position at an intermediate height by guiding the hook 5 so as to be able to rotate up and down between the lower predetermined position H3 separated by an angle between the high predetermined position U and the low predetermined position D from the direction switching position H2. It is composed of a grooved rail 612 spiral in the vertical direction that guides the H and the lower predetermined position D so as to be able to rotate up and down.
Then, in this case, the high predetermined position U on the arrangement position P of the flexible container bag F on the base B attaches the flexible container bag F on the base B to the base B with the entire bottom surface as shown in FIG. 1 (b). When the whole is expanded to the original three-dimensional shape and the upper inlet F0 is extended upward, each pair of hooks 5 on both sides of each post 1 is the front and rear shoulder straps on the upper surface of the flexible container bag F. Each shoulder strap F1 has a height that allows it to be lifted to a tense state in a direction that allows it to be inserted into F1, and at this high predetermined position U, each pair of hooks 5 of each post 1 is opened and projected in a substantially C shape. NS. Further, as shown in FIG. 1B, the intermediate position H between the high predetermined position U and the low predetermined position D on the arrangement position P of the flexible container bag F on the base B is on the base B. When the flexible container bag F is placed on the base B with the entire bottom surface attached to the base B, the entire surface is expanded to the original three-dimensional shape, and the upper inlet F0 is extended upward, each shoulder suspended by each pair of hooks 5. The height is such that each pair of hooks 5 comes off from each shoulder strap F1 by descending from the strap F1. Then, at a low predetermined position D outside the arrangement position P of the flexible container bag F on the base B, as shown in FIG. 1 (b), the flexible container bag F is placed on the base B with the entire bottom surface of the flexible container bag F attached to the base B. When the whole is expanded to the original three-dimensional shape and the upper inlet F0 is extended upward, each pair of hooks 5 of each post 1 is at least at a height that does not engage with each shoulder strap F1 and is a flexible container. The direction away from the body of the flexible container bag F that does not touch the bag F, in this case, the direction perpendicular to the front and rear side surfaces of each post 1. At this low predetermined position D, each pair of hooks 5 of each post 1 is housed with 180 ° open on both front and rear sides of each post 1.
Along with this, a spring member 62 is provided which normally urges each hook 5 to rotate outward from the arrangement position P of the flexible container bag F on the base B. In this case, as shown in FIG. 3, a plurality of coil springs 62 are adopted as the spring members 62, and each coil spring 62 is arranged on the side opposite to each post 1 side of each elevating guide 3, and one end thereof is arranged. Each hook 5, in this case, is connected to the support 51a of each hook 5, the other end is connected to the tip of the piston rod 71 of each air cylinder 7, and each hook 5 is normally connected to the flexible container bag F on the base B. It is rotationally urged to the outside of the arrangement position P.

As shown in FIG. 1, two sets of two pairs of air cylinders 7 are installed in parallel in the vicinity of each guide shaft 2 of each post 1, and each elevating guide is connected to a piston rod 71 to each elevating guide 3. 3 is driven up and down. In this case, as shown in FIG. 7A, a double-acting air cylinder having two ports 7a and 7b for supplying and exhausting is adopted as these four air cylinders 7, and these air cylinders 7 are used. As shown in FIG. 1, the lower end of the main body cylinder 72 of each air cylinder 7 is placed on one side of each post 1 opposite to the side on which the guide shaft 2 is arranged on the front and rear sides of each post 1. It is positioned near the lower end and arranged parallel to each post 1, and the upper and lower ends of the main body cylinder 72 are fixedly attached via fixing members (on the front and rear side surfaces of each post). Then, the tip of the piston rod 71 of each air cylinder 7 is connected to the peripheral surface of each elevating guide 3 of each guide shaft 2 via the connecting member 73.
As shown in FIG. 7A, the air supply circuit 8 is formed between each air cylinder 7 and a compressed air supply source (not shown) that supplies high-pressure compressed air to each air cylinder 7, and each air cylinder 7 is formed. A pressure reducing valve 81 that supplies compressed air at a predetermined set pressure, an ascending operation that supplies compressed air to each air cylinder 7 and extends each piston rod 71 of each air cylinder 7 to raise each elevating guide 3 and each air. A manual switching valve 82 for discharging compressed air from the cylinder 7 and contracting each piston rod 71 of each air cylinder 7 to switch to a lowering operation in which each elevating guide 3 is lowered, and compressed air in each air cylinder 7. It has a pressure adjusting valve 83 that adjusts to a predetermined set pressure.
In this case, the downstream end of the air pipe 84 extending from the compressed air supply source (compressor) (not shown) is connected to the input port of the pressure reducing valve 81, and the air pipe 84 is connected to the output port of the pressure reducing valve 81. Is connected to the input port of the manual switching valve 82. An air pipe 84 is connected to each of the two output ports of the manual switching valve 82, one air pipe 84 is branched and connected to one port 7a of each air cylinder 7, and the other air pipe 84 is branched. It is connected to the other port 7b of each air cylinder 7. Then, the air pipe 84 between the pressure reducing valve 81 and the manual switching valve 82 and the air pipe 84 of one output port of the manual switching valve 82, in this case, the side that supplies the compressed air that drives the piston rod 71 in the extension direction. A pressure regulating valve 83 is connected to each of the air pipes 84 of the above. The operating lever 821 of the manual switching valve 82 shown in FIG. 7B is installed in a corner on the base B. In this way, the compressed air supplied from the compressor (not shown) is depressurized and discharged by the pressure reducing valve 81 to a predetermined set pressure corresponding to each air cylinder 7, and the adjusted compressed air is discharged from the manual switching valve 82. When supplied to one port 7a of each air cylinder 7 by the switching operation of the operating lever 821, each piston rod 71 extends, that is, each hook 5 rises and compressed air is exhausted from the other port 7b to adjust the pressure. When the compressed air discharged through the valve 83 and conversely, the adjusted compressed air is supplied to the other port 7b of each air cylinder 7 by the switching operation of the operating lever 821 of the manual switching valve 82, each piston rod 71 contracts. That is, as each hook 5 descends, compressed air is exhausted from one of the ports 7a and discharged through the pressure regulating valve 83. Further, in the air supply circuit 8, when a predetermined or more load is applied to each piston rod 71 after the extension of each air cylinder 7, that is, when a predetermined or more load is applied to each hook 5, each of the air cylinders 7 is operated. The piston rod 71 descends in the contraction direction, the pressure in each main body cylinder 72 rises above a predetermined set pressure, and the compressed air is exhausted from the pressure adjusting valve 83 in response to the pressure rise, so that a predetermined setting is made. Each hook 5 (each hook 5) is decompressed to a pressure and finely adjusted, and as the load (load acting on each piston rod 71) subsequently applied to each hook 5 increases, each air cylinder 7 is decompressed and adjusted to a predetermined set pressure. The piston rod 71) is gradually lowered.

This flexible container bag lifting jig J has such a configuration, and realizes labor saving by mechanizing the three-dimensional shape shaping work by the hanging support of the flexible container bag F, which has been performed manually so far. That is, a plurality of shoulder cords F1 having the flexible container bag F on the upper portion are hung on each hook 5 and the flexible container bag F is connected to the powder transfer loader L (shooter L1), and the manual switching valve 82 By the ascending operation of each air cylinder 7 by the above, each elevating guide 3 is raised to the upper part of each guide shaft 2, and each hook 5 is raised and swiveled via each elevating swivel guide mechanism 6 and the rotation guide 4, and the flexible container bag of the base B is used. After projecting to a high predetermined position U on the arrangement position P of F and suspending the flexible container bag F in the air, powder is charged from the powder transport loader L into the flexible container bag F and is attached to each hook 5 of each post 1. By applying a predetermined load, each air cylinder 7 of each post 1 is adjusted to a predetermined set pressure by the action of each pressure adjusting valve 83, and each hook 5 is slowly lowered to lower the bottom of the flexible container bag F. After landing on the base B, the hooks 5 of the flexible container bag F are used to suspend and support the flexible container bag F, and the powder transfer loader L is charged with the powder into the flexible container bag F. By interacting with the slow descent of each hook 5, the powder is charged while shaping and holding the flexible container bag F in a three-dimensional shape.
Then, in this flexible container bag lifting jig J, labor saving is achieved by mechanizing the removal of the shoulder strap F1 of the flexible container bag F and the storage in a position where it does not interfere with the removal of the flexible container bag F after powder filling of each hook 5. Realize. That is, after filling the flexible container bag F with the powder, the manual switching valve 82 lowers each elevating guide 4 to the lower part of each guide shaft 2, and each hook 5 is moved to each elevating swivel guide mechanism 6 and each rotation guide 4. It is lowered and swiveled by the guidance and the urging force of the spring 62 on the side of each hook 5, and while each hook 5 is automatically removed from each shoulder strap F1 of the flexible container bag F, it is low outside the arrangement position P of the flexible container bag F of the base B. It is designed to be pulled into a predetermined position D.

FIG. 1 also shows the work of filling the flexible container bag F with powder by the powder transfer loader L using this jig J.
In FIG. 1, first, by operating the operation lever 821 of the manual switching valve 82, the operation of each pair of air cylinders 7 is switched to the ascending or descending operation, so that each piston rod 71 of each pair of air cylinders 7 of each post 1 is operated. Raise or lower to raise or lower each pair of elevating guides 3 to the upper or lower part of each pair of guide shafts 2, and to raise and lower each pair of hooks 5 via each pair of elevating and turning guide mechanisms 6 and each pair of rotation guides 4. Turn up and down and stop at an appropriate height in the shape of a C. In this state, the flexible container bag F is unfolded, a plurality of shoulder straps F1 on the upper part of the flexible container bag F are hung on each pair of hooks 5, and the input port F0 of the flexible container bag F is connected to the shooter L1 of the powder transfer loader L. do.
After setting the flexible container bag F on the jig J, the manual switching valve 82 is switched to the ascending operation of each pair of air cylinders 7 by the operation lever 821, so that each piston rod 71 of each pair of air cylinders 7 of each post 1 is switched. To raise each pair of elevating guides 3 to the upper part of each pair of guide shafts 2, and to raise each pair of hooks 5 on the base B via each pair of elevating and turning guide mechanisms 6 and each pair of rotation guides 4. The flexible container bag F is raised to a high predetermined position U on the arrangement position P of the flexible container bag F so as to project into the high predetermined position U in a substantially C shape, and the flexible container bag F is suspended above the base B.
From this state, the powder transfer loader L is operated to charge the powder into the flexible container bag F through the shooter L1. The flexible container bag F expands little by little by the initial charging of the powder, and when a predetermined amount or more of the powder is charged into the flexible container bag F, a predetermined load is applied to each pair of hooks 5. As a result, each piston rod 71 of each pair of air cylinders 7 gradually descends in the contraction direction, the pressure in each air cylinder 7 rises above a predetermined set pressure, and the pressure adjusting valve 83 responds to the pressure rise. The compressed air is exhausted and depressurized to a predetermined set pressure to make fine adjustments. Each pair of hooks 5 gradually descends, and the bottom of the frecon bag F extending downward due to the weight of the powder is on the base B. Land on.
While the flexible container bag F is suspended and supported by each pair of hooks 5 while landing on the base B, powder is continuously charged from the powder transfer loader L to the flexible container bag F, and the powder is continuously charged. Each pair of hooks 5 receives a load in the same manner and is slowly and smoothly lowered by finely adjusting the pressure of each air cylinder 7, and this becomes an adjusting force that suspends and supports the flexible container bag F by the conventional human power. As a result, the flexible container bag F is not collapsed or deformed into a deformed shape, and the powder is charged while being shaped and held in the original three-dimensional shape.
When the flexible container bag F is filled with powder in this way, the manual switching valve 82 is switched to the downward operation of each pair of air cylinders 7 by operating the operation lever 821, so that each pair of air cylinders of each post 1 is operated. Each piston rod 71 of 7 is lowered to lower each pair of elevating guides 3 to the lower part of each pair of guide shafts 2, and each pair of hooks 5 is lowered to each pair of elevating / turning guide mechanism 6 and each pair of rotation guides 4. By the guidance of the above and the urging force of the spring 62 on the side of each hook 5, the flexible container bag F on the base B is swung down to a low predetermined position D outside the arrangement position P and stored in the low predetermined position D.
Then, the trolley forming the base B is moved from the powder charging position directly under the powder transport loader L to the front flexible container bag taking-out position, and the flexible container bag F after powder filling is moved to the hoist crane or forklift at this flexible container bag taking-out position. As a result, each part of the jig J, particularly each pair of hooks 5, is lifted and taken out from the base B without interfering with the powder-filled flexible container bag F on the base B.

As described above, according to this jig J, the following special effects are obtained.
(1) This jig J includes two pairs of posts 1, two sets of two pairs of guide shafts 2, two sets of two pairs of elevating guides 3, and two sets of two pairs of rotation guides. 4, two sets of two pairs of hooks 5, two sets of two pairs of elevating and turning guide mechanisms 6, two sets of two pairs of air cylinders 7, and an air supply circuit 8, compressed air supply (not shown). When the flexible container bag F is placed on the base B with the entire bottom of the flexible container bag F attached to the base B, and the whole is expanded to the original three-dimensional shape so that the upper inlet F0 is extended upward. , A position where the pair of hooks 5 on both sides of each post 1 can lift each shoulder strap F1 to a tense state in a direction in which the pair of hooks 5 on both sides of each post 1 can be inserted into the front and rear shoulder straps F1 on the upper surface of the flexible container bag F, and the position of each post 1. Each pair of hooks 5 is moved up and down at a height that does not engage with each shoulder strap F1 and at a position that is away from the body of the flexible container bag F that does not contact the flexible container bag F. Therefore, even if there are related equipment around the upper part of the powder transfer loader L and it is difficult or impossible to secure a sufficient space, it should be installed compactly without interfering with the related equipment. Can be done. Further, since this jig J has a guide shaft 2, an elevating guide 3, a rotation guide 4, a hook 5, an elevating and turning guide mechanism 6, and an air cylinder 7 attached along both side surfaces of the two posts 1, the guide shaft 2, the elevating guide 3, and the rotation guide 4 are attached. The installation area required for the jig J as a whole is extremely small, and it can be compactly installed on the base B without disturbing the work space for filling the flexible container bag F with powder.
(2) In this jig J, a plurality of shoulder straps F1 having the flexible container bag F on the upper portion are hung on each hook 5 and the flexible container bag F is connected to the powder transfer loader L. By operating the operating lever 821 of the manual switching valve 82, the hook 5 is opened on both sides of each post 1 in a substantially C shape and stopped at an appropriate height within the reach of the operator, so that each shoulder strap of the flexible container bag F is held. It is easy to hang F1 on each hook 5, and even one operator can easily and quickly set the flexible container bag F.
(3) In this jig J, after setting the flexible container bag F, each air cylinder 7 is lifted by the operation lever 821 of the manual switching valve 82 to raise each lift guide 3 to the upper part of each guide shaft 2. Each hook 5 is swung up and swiveled via each elevating swivel guide mechanism 6 and each swivel guide 4 so as to project to a high predetermined position U on the arrangement position P of the flexible container bag F of the base B, and the flexible container bag F is suspended in the air. Then, powder is charged from the powder transfer loader L to the flexible container bag F, and a predetermined load is applied to each hook 5 of each post 1, so that each air cylinder 7 of each post 1 is operated by the pressure adjusting valve 83. While adjusting to a predetermined set pressure, each hook 5 is slowly lowered to land the bottom of the flexible container bag F on the base B, and the flexible container bag F is suspended by each hook 5 in the landing state of the flexible container bag F. Support and powder transfer While the flexible container bag F is shaped and held in a three-dimensional shape by the interaction between the loading of powder from the loader L into the flexible container bag F and the slow descent of each hook 5 accompanying the loading of the powder. Since the powder is charged, when the powder is packed into the flexible container bag F from the powder transport loader L, the suspension support of the flexible container bag F, which has been conventionally performed manually so that the flexible container bag F does not fall or deform, is supported. The work can be automated by mechanization to prevent the flexible container bag F from tipping over or deforming, and the flexible container bag F of any shape can be reliably lifted to the height required for its suspension support. The three-dimensional shape can be reliably maintained.
(4) In this jig J, after filling the flexible container bag F with powder, each elevating guide 3 is lowered to the lower part of each guide shaft 2 by operating the operation lever 821 of the manual switching valve 82, and each hook 5 Is swiveled downward by the guidance of each elevating and turning guide mechanism 6 and each rotation guide 4 and the urging force of the spring 62 on the side of each hook 5, and each hook 5 is automatically removed from each shoulder string F1 of the flexible container bag F while being automatically removed. Since the flexible container bag F of the base B is pulled into a low predetermined position D outside the arrangement position P, the trolley forming the base B is moved to the flexible container bag take-out position after filling the powder, and the flexible container bag is taken out. At the position, when the flexible container bag F after powder filling is taken out by a hoist crane, a fork lift, or the like, each part of the jig J, particularly each hook 5, may interfere with the powder-filled flexible container bag F on the base B. It is possible to smoothly and easily take out the flexible container bag F after filling the powder.
(5) In this jig J, as described above, by applying a predetermined load to each hook 5 of each post 1, each air cylinder 7 of each post 1 is subjected to a predetermined set pressure by the action of the pressure adjusting valve 83. While adjusting to, each hook 5 is slowly lowered to land the bottom of the flexible container bag F on the base B, and the suspension support and powder of the flexible container bag F by each hook 5 in the landing state of the flexible container bag F. The powder is charged while the flexible container bag F is shaped and held in a three-dimensional shape by the interaction between the charging of the powder from the transport loader L into the flexible container bag F and the slow descent of each hook 5 accompanying the charging of the powder. Therefore, each post 1, each pair of guide shafts 2, each pair of elevating guides 3, each pair of rotation guides 4, each pair of hooks 5, each pair of elevating swivel guide mechanisms 6, each pair of air cylinders 7, etc. By reducing the load due to the weight of the powder loaded on each part of the jig J, it is possible to reduce the wear of each part even when the jig J is used for a long period of time.

J Flexible container bag lifting jig L Powder transfer loader (powder filling device)
L1 Shooter B Base B1 Basket B2 Guide rail F Flexible container bag F0 Input port F1 Shoulder strap P Flexible container bag F placement position U High predetermined position D Low predetermined position 1 Post (post)
11 Guide mounting surface 2 Guide shaft 3 Lifting guide 4 Rotating guide 5 Hook 51 Support stand unit 51a Support stand 51b Support arm 6 Lifting and turning guide mechanism 60 Guide roller 61 Lifting and turning rail 611 Linear grooved rail 612 Spiral grooved Rail 62 Spring member (coil spring)
H1 Top position H2 Intermediate direction switching position H3 Bottom position 7 Air cylinder 71 Piston rod 72 Main body cylinder 7a Port 7b Port 73 Connecting member 8 Air supply circuit 81 Pressure reducing valve 82 Manual switching valve 821 Operating lever 83 Pressure adjusting valve 84 Air piping

Claims (5)

The flexible container bag connected to the powder filling device on the lower base of the powder filling device to fill the powder. The flexible container bag is held on the upper part of the flexible container bag so as not to fall or deform. It is a flexible container bag lifting jig for lifting to a predetermined height required for hanging support.
A pair of posts that are set up and installed at two points facing each other around the placement position of the flexible container bag on the base below the powder filling device.
A pair of guide shafts arranged and fixed in parallel with each post on both side surfaces of each post in a direction perpendicular to each other's facing surfaces.
A pair of elevating guides arranged so as to be elevated on each guide shaft of each post,
A pair of rotary guides rotatably arranged on the outer peripheral surface of each lift guide of each post,
A pair of hooks projecting horizontally from each rotation guide of each post,
The elevating guides are interposed between the posts and the rotation guides of the posts, and the elevating guides of the elevating guides on the guide shafts are interlocked with the forward / reverse rotation of the rotation guides. As the guide shaft rises from the lower part to the upper part, the rotation guides are rotated in the forward direction, and the pair of hooks are moved from a low predetermined position outside the arrangement position of the flexible container bag of the base to the arrangement position of the flexible container bag of the base. It turns to a high predetermined position on the top, and as the elevating guide descends from the upper part to the lower part of the guide shaft, the rotation guides are rotated in the reverse direction, and the pair of hooks are placed on the arrangement position of the flexible container bag of the base. A pair of ascending / descending rotation guide mechanisms that rotate from a high predetermined position to a low predetermined position outside the arrangement position of the flexible container bag of the base.
A pair of air cylinders that are installed in parallel in the vicinity of the guide shafts of each post and that connect a piston rod to each of the elevating guides to elevate and drive each of the elevating guides, and each of the air cylinders and each of the air cylinders. A pressure reducing valve that is formed between a compressed air supply source that supplies compressed air to each air cylinder and supplies compressed air to each air cylinder at a predetermined set pressure, and a pressure reducing valve that supplies compressed air to each air cylinder and of each air cylinder. An ascending operation in which each piston rod is extended to raise each elevating guide and a descending operation in which compressed air is discharged from each air cylinder to contract each piston rod of each air cylinder to lower each elevating guide. An air supply circuit having a manual switching valve for switching to and a pressure adjusting valve for adjusting the compressed air in each air cylinder to the predetermined set pressure.
With
A plurality of shoulder straps having a flexible container bag on the upper part are hung on each of the hooks, and the flexible container bag is connected to the powder filling device.
By the ascending operation of each of the air cylinders by the manual switching valve, each of the elevating guides is raised to the upper part of each of the guide shafts, and each of the hooks is ascended and swiveled via the elevating and reversing guide mechanism and the rotation guide. After projecting the flexible container bag to a high predetermined position on the placement position of the base flexible container bag and suspending the flexible container bag in the air,
By charging powder from the powder filling device into the flexible container bag and applying a predetermined load to each hook of each post, the air cylinders of each post are set to the predetermined settings by the action of the pressure adjusting valves. While adjusting the pressure, the hooks are slowly lowered to land the bottom of the flexible container bag on the base, and the hanging support and powder filling device of the flexible container bag by the hooks in the landing state of the flexible container bag. The powder is charged while the flexible container bag is shaped and held in a three-dimensional shape by the interaction between the charging of the powder into the flexible container bag and the slow descent of each hook accompanying the charging of the powder.
After filling the flexible container bag with powder, the manual switching valve lowers each elevating guide to the lower part of each guide shaft, and the hooks are lowered and swiveled via the elevating and reversing guide mechanism and the rotation guide. While removing each hook from each shoulder strap of the flexible container bag, the hook is pulled into a low predetermined position outside the arrangement position of the flexible container bag of the base.
A flexible container bag lifting jig that is characterized by this. The flexible container bag lifting jig according to claim 1, further comprising a spring member that rotates and urges each hook to the outside of the arrangement position of the flexible container bag on the base. The flexible container bag lifting jig according to claim 1 or 2, wherein each pair of hooks of each post is opened and projected in a substantially C shape at a high predetermined position on the arrangement position of the flexible container bag on the base. Each pair of elevating and turning guide mechanisms of each post has an arcuate guide mounting surface formed on both side surfaces of each post in the elevating range of each rotation guide in parallel with the outer peripheral surface of each rotation guide. A guide roller projected at a predetermined position facing each guide mounting surface on the outer peripheral surface of the rotation guide, and a guide roller attached to each guide mounting surface of each post and engaged with each guide roller of each rotation guide. The guide rollers are placed at the uppermost position at substantially the same height as the high predetermined position on the arrangement position of the flexon bag on the base and at a lower predetermined position outside the arrangement position of the frecon bag on the base, which is lower than the height of the uppermost position. It guides each hook up and down and linearly to and from the intermediate direction switching position set at an intermediate height higher than the height of the position, and guides each hook to a high predetermined position on the arrangement position of the flexon bag on the base. A vertical groove that guides up and down between a position with an intermediate height lower than the height of the high predetermined position and higher than the height of the low predetermined position outside the placement position of the flexon bag on the base. The rail and the linear groove-shaped rail are connected to each other and engaged with each of the guide rollers, and the guide rollers are moved from the intermediate direction switching position at the same height as the intermediate direction switching position and the low predetermined position. The hooks are guided up and down and swiveled between the high predetermined position and the lowest position separated by an angle between the low predetermined position, and the hooks are guided to the intermediate height position and the low predetermined position. The flexon bag lifting jig according to any one of claims 1 to 3, further comprising an up-and-down swivel rail composed of a vertically spiral groove-shaped rail that guides the vehicle so that it can be swiveled up and down. The base consists of a trolley and is movably installed on a guide rail laid between the powder filling position directly under the powder filling device and the flexible container bag removal position after powder filling that is out of this powder filling position. The flexible container bag lifting jig according to any one of claims 1 to 4.

Images