JP3020058B1 - Bag container cleaning method and apparatus - Google Patents

Abstract

Abstract: PROBLEM TO BE SOLVED: To enable a used bag container to be efficiently cleaned by discharging the remaining residue and garbage etc. in a state in which a discharge port is closed, and incorporate the bag container into an automatic filling machine immediately before a filling process. It also allows for easy cleaning. SOLUTION: A used empty bag container 50 is supported in a suspended state by a transfer and support means 3 with a bottom discharge port closed and an upper cylindrical filling port 52 opened,
A cleaning body unit 13 having a suction pipe 14 having a suction port 14a at a lower end, and a plurality of air injection nozzles 15 and 16 disposed around the suction pipe to jet air outward or downward. Is inserted into the main body 51 through the cylindrical filling port 52, air is blown against the inner surface of the main body to blow down residuals and the like, and the blown-down residuals and the like are sucked into the suction port 14 a at the lower end of the suction pipe 14. More suction and discharge to process.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for cleaning a flexible bag container mainly for powders having a cylindrical inlet at the top and an outlet at the bottom.

[0002]

2. Description of the Related Art In recent years, as a container for a granular material, a flexible material such as a woven cloth such as a synthetic resin cloth or a woven cloth obtained by coating or laminating a resin on the cloth. A so-called flexible container, which is a so-called flexible container, has been put to practical use. This bag container is generally provided with a cylindrical filling port at the top of the main body and a cylindrical discharge port at the bottom.

By the way, this kind of bag container is used repeatedly. At the time of re-use, there is often a residue or dust on the inside of the used bag container, so if the bag container does not have a replacement inner bag, It is common to reuse after cleaning (cleaning).

As a method of cleaning (cleaning) the bag container, there are various means such as washing with water and air blowing, all of which are performed with the upper cylindrical filling port and the lower discharging port opened. For example, in the case of air blow, air is blown into the main body from an upper cylindrical filling port to blow down residuals and the like, and at the same time, suction is performed from a lower outlet to discharge the blown-down residuals and the like. Processing. After this washing (cleaning), the outlet is closed.

In the above-mentioned washing (cleaning) system, it is difficult to perform this immediately before filling by an automatic filling machine. Generally, a specialized trader performs washing of the bag container. I have. For this reason, the transportation to the trader is costly, and further, measures such as closing the mouth and packaging are necessary to prevent dust from entering after cleaning (cleaning). It is huge.

[0006] The present invention has been made in view of the above, and a used bag container is stored in a state in which the outlet is closed.
Provided is a bag container cleaning method and apparatus capable of efficiently removing an internal residue or dust and discharging the same so as to be efficiently cleaned and incorporated into an automatic filling machine to easily clean immediately before the filling process. Is what you do.

[0007]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and the invention of claim 1 is directed to a bag container having a cylindrical filling port at an upper portion of a main body and an outlet at a bottom portion. In the cleaning method, in a state where the discharge port is closed and the cylindrical filling port is opened, the bag container is supported in a suspended state such that the cylindrical filling port faces upward, and a lower end is provided. A cleaning main body unit having a vertical suction pipe having a suction port in a portion and first and second air injection nozzles disposed around the suction pipe in the main body portion from the upper cylindrical filling port. And the first air injection nozzle blows air against the inner surface of the main body of the bag container to blow off residuals and the like, and the second air injection nozzle injects air downward or obliquely downward. If you drop the blown remnants down, Moni, is characterized in that the blow the dropped remnants like to be sucked is discharged to the outside of the bag container handling by the suction port of the lower end of the suction pipe.

The invention according to claim 2 is a cleaning device for carrying out the method for cleaning a bag container, wherein the discharge port is closed and the cylindrical filling port is opened, and the cylindrical filling port is opened. A support means for supporting the bag container in a suspended state so as to be above, a suction pipe above and below the support means and having a suction port at a lower end thereof, and a vertically extending suction pipe around the middle of the suction pipe. A first air injection nozzle which is disposed and injects air outward, and a second air injection nozzle which injects air downward or obliquely downward, and is suspended and supported by the support means. A cleaning main unit provided so as to be freely inserted into the main body through a cylindrical filling port at an upper portion of the bag container.

According to a third aspect of the present invention, in the cleaning device, the supporting means for the bag container is a transferring and supporting means also serving as a transferring means for feeding the bag container to an automatic filling step. Wherein the cleaning main unit is provided.

According to a fourth aspect of the present invention, the cleaning main unit in the cleaning device includes a plurality of first air injection nozzles that inject air in a radial direction at predetermined intervals in an axial direction of the suction pipe, and a plurality of first air injection nozzles. A plurality of second air injection nozzles for injecting air obliquely downward are alternately arranged.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described based on embodiments shown in the drawings.

FIG. 1 is a side view schematically showing an embodiment of an automatic filling machine incorporating a cleaning device according to the present invention, FIG. 2 is a plan view of the same, and FIG. It is. FIG. 4 is an enlarged front view of a cleaning main unit in the cleaning device.
FIG. 5 is a side view of the same, and FIG. 6 is a partial plan view of the same.

As shown in FIG. 11, the bag container (50) to be cleaned in the present invention has a cylindrical filling port (52) at the top of a main body (51) serving as a housing and a cylindrical container at the bottom. A discharge port (53) is provided, and the discharge port (53) can be closed by a binding means such as a binding string (54) provided in the bag container (50). Further, the cylindrical filling port (52) is tied by a tying means as appropriate after the filling of the granular material or the like. When supplying the bag container (50) to the automatic filling machine, for example, as shown in FIGS. 12 and 13, the bag container is held in the tubular filling port (52) while the filling port is kept open. Flange frame (5
5) is attached. As an attachment means, in FIG. 13, the end of the cylindrical filling port (52) is connected to the flange frame (55).
Is folded outward by passing through a central cylindrical opening (56), and is tightened with an elastic cord or band at the end, but is not limited to this. (57) shows a hanging belt for a container.

1 and 2, (1) is a frame of an automatic filling machine, (2) is a supply stand for a used empty bag container (50) to be cleaned, and (3) is a supply stand ( 2) means for transferring and supporting the bag container (50) supplied to the bag container (50).
Is closed and the cylindrical filling port (52) is opened,
The flange frame (5) attached to the cylindrical filling port (52)
Utilizing 5), the cylindrical filling port (52) is supported in a suspended state such that it faces upward and can be transferred to an automatic filling section (40) described later.

The supply table (2) is provided with the flange frame (5).
Opposite sides (4) facing each other with an interval corresponding to (5)
(4) The free roller (4) receiving the flange frame (55)
a) and (4a), and the both side portions (4) and (4) are connected to and supported by a support member (5) above the both sides.
The support member (5) is vertically movably suspended by a chain (6) suspended on an upper sprocket (7).
By the driving of the driving means (8) connected to the sprocket (7), the supply table (2) via the support member (5).
However, it can be moved up and down between the solid line and the chain line in FIG. Thereby, when the supply stand (2) is at the position indicated by the chain line in FIG. 1, the empty bag container (50) is supplied onto the supply stand (2) so as to be supported by the flange frame (55). Then, by raising the supply table (2) to a solid line position at the same height as the transfer / support means (3), the bag container (50) on the supply table (2) is transferred / supported (3).
It can be sent on top.

As shown in FIGS. 2 and 3, the transfer / support means (3) is used to transfer an empty bag container (50) fed from the supply table (2) to both side portions of the flange frame (55). And a pair of endlessly rotating chain conveyors (9) and (9) which are supported and transferred in a suspended state. During the transfer of the transfer and support means (3), as shown in FIG. 1, the bag container (50) to be transferred is kept constant in accordance with a filling cycle and a cleaning cycle in an automatic filling section (40) described later. Stopper means (11) capable of stopping the transfer for a time is provided. As a result, the bag container (50) is intermittently transferred. In the case shown in the figure, the stopper means (11) is moved to the position (stop) where it engages with the flange frame (55) of the cylindrical filling port (52) of the bag container (50) by the reciprocating movement of the cylinder device (12). position)
And a position (a transferable position) that is rotatable, but is not limited to this.

In FIG. 1 to FIG. 3, (10) indicates a cleaning device portion incorporated at a transfer stop position by the stopper means (11) during the transfer of the transfer and support means (3). Above the transfer stop position of the bag container (50) by the transfer and support means (3), the upper part of the suspended bag container (50) suspended and supported by the transfer and support means (3). The cleaning main unit (13) is provided so as to be freely inserted into the main body (51) through the cylindrical filling port (52).

As shown in FIG. 4 and FIG. 5, the cleaning main body unit (13) has a vertically extending suction pipe (14) having a suction port (14a) which is opened in a trumpet shape at the lower end. And a first, which is disposed around the suction pipe (14) and injects air outward, downward, or obliquely downward.
And a second air injection nozzle (15), (16), and in particular, a first air injection nozzle (15) for injecting air in a radial direction (outward) perpendicular to the axis of the suction pipe (14). 1
5) and a plurality of second air injection nozzles (16) for injecting air obliquely downward or downward are alternately arranged at required intervals in the axial direction, and a residue blown off by air blowing, The dust and the like can be smoothly dropped to the bottom side of the main body (51).

The suction pipe (14) has its upper end fixed to a support plate (17) and vertically suspended, and is connected to a dust collector (not shown) via a suction pump (not shown). Further, around the suction pipe (14), a cage-shaped protector (18) assembled by a round bar surrounds the support plate (17) so as to surround the outside of the suction pipe (14).
It is fixed to.

Inside the cage-shaped protector (18), first air is injected in four directions as shown in FIGS. 7 and 8 at a required axial position of the suction pipe (14).
The air injection nozzle (15) is provided. A supply pipe (20) for compressed air such as a hose is connected to a joint (19) of the air injection nozzle (15), and the supply pipe (20) is attached to a suction pipe (14). The support plate (17) via a member (21), a hose, or the like.
And an air supply pipe (not shown) from a compressor or the like to the first connection member (22).
Is connected to the air injection nozzle (15).
It is provided so that air can be jetted more.

A mounting member (23) for the second air injection nozzle (16) is provided on the outer periphery of the suction pipe (14) between the positions where the air injection nozzles (15) are provided.
As shown in FIGS. 9 and 10, the mounting member (23) is provided with an air injection nozzle (16) via a flexible hose (24) capable of freely adjusting the nozzle direction. A compressed air supply pipe (25) such as a hose connected to the mounting member (23) is connected to a second connection member (26) provided on the support plate (17), and the connection member (2) is connected to the second connection member (26).
An air supply pipe (not shown) from a compressor or the like is connected to 6) so that air can be injected downward, obliquely downward, or in a spiral direction from the air injection nozzle (16). .

As shown in FIG. 4 on an enlarged scale, the support plate (17) has triangular brackets (2) at both ends thereof.
7) and the upper and lower 2 attached to the bracket (27).
The individual cylindrical guide members (28) are vertically movably supported by fitting into guide rods (29) arranged vertically along both sides of the frame (1). A wire (30) is connected to the support plate (17), and the wire (30) is connected to the gantry frame (1).
Is connected to a winch (32) via a roller (31) disposed on the upper part of the support plate (17), by rotating the winch (32) by a drive motor (33), In other words, the cleaning main unit (1
The entirety of 3) can be moved up and down between the dashed line and the solid line in FIGS. 1 and 3 so that the cleaning main unit (13) can be inserted into the bag container (50) whose transfer is stopped. It has become.

As shown in FIGS. 1, 4 and 6, an annular rubber packing (34) is provided around the lower surface of the support plate (17) around the protective body (18). When the cleaning body unit (13) is inserted into the bag container (50) by lowering, the flange frame (55)
Alternatively, the cylindrical filling port (52) attached thereto is elastically brought into contact with the cylindrical filling port (52) so that it can be maintained in an airtight state.

Particularly in the case of the illustrated embodiment, as shown in FIG. 3, when the cleaning main unit (13) is lowered, it is actuated by the cylinder device (35) to press the support plate (17) in a leverage manner. A member (36) is provided so that airtightness between the cylindrical filling port (52) or the flange frame (55) and the rubber packing (34) can be maintained well.

In FIG. 1, reference numeral (37) denotes a means for pushing out a bag container (50) provided after the cleaning device portion (10) in the transfer / support means (3). Bag containers (5
0) to the automatic filling section (40).

The basic structure of the automatic filling section (40) is the same as that of a conventionally known automatic filling apparatus. As shown in FIGS. 1 and 2, the empty bag container fed as described above is used. (50) is replaced with a cylindrical filling port (52) at the top thereof.
A pair of supporting members (42) (42) connected to the cylinder devices (41) and (41) at a portion of the flange frame (55) attached thereto is supported in a suspended state from both sides. The filling port (45) connected to a hopper (not shown) via a portion (43) or the like is lowered to form a flange frame (55) or a cylindrical filling port (52) attached thereto. While holding the pressed state, the bag container (50) is lowered onto the lower roller conveyor (46) for unloading, so that the powder or the like can be automatically filled. (47) is an automatic binding device for binding the cylindrical filling port (52) after filling.

In the automatic filling machine equipped with the cleaning device of the above embodiment, when the cleaning method of the present invention is carried out, the used empty bag container (50) is closed at the discharge port (53) and When the cylindrical filling port (52) is opened, it is supported by a flange frame (55) attached to the cylindrical filling port (52) so as to be supported in a suspended state on the supply table (2) at a lowered position. Supply. When the bag container (50) is supplied, the supply table (2) rises to the position shown by the solid line in FIG. 1 and is fed into the transfer / support means (3). When the bag container (50) sent to the transfer and support means (3) is transferred to the cleaning device part (10), the stopper means (11)
The transfer is stopped by the engagement of the flange frame (55) at the position.

Then, the winch (30) is driven to lower the cleaning main unit (13), and the main body is moved from the cylindrical filling port (52) of the bag container (50) supported by the transfer / support means (3). Part (51). On this occasion,
By pressing the rubber packing (34) on the lower surface of the support plate (17) of the cleaning main unit (13) into the cylindrical filling port (52) to which the flange frame (55) is attached, the cleaning main unit (10) and the cylindrical The space between the shape filling ports (52) is kept airtight.

In this state, compressed air is supplied from a compressor or the like through a pipe such as a hose, and air is injected from the first and second air injection nozzles (15) and (16). At this time, first, without performing suction by the suction pipe (14) for a certain time (for example, 10 seconds), first, the bag container (50)
The main body (51) is expanded. In this state, the lower end of the suction pipe (14) is located near the bottom of the bag container (50). In this way, air is blown onto the inner surface of the main body (51) by, for example, the first air injection nozzle (15) in the radial direction to blow off the residue and dust of the powdery product adhering to the inner surface, Air is jetted downward or obliquely downward from the second air jet nozzle (16) to drop the blown-off residue and the like downward. At the same time, the suction pump connected to the suction pipe (14) is operated to perform suction from the suction port (14a) provided at the lower end of the suction pipe (14), and the residual air blown down as described above. An object, rubber, etc. are sucked together with air, discharged to the outside of the bag container (50), and sent to a dust collector or the like.

The above-described air jetting and sucking actions are performed in a short time such as one second, for example, in order to efficiently perform a blowing-down action and a discharging action of the residue by air blowing. Is repeated intermittently. Finally, the air in the main body (51) is released to complete the cleaning, the cleaning main unit (13) is raised, and the cleaning main unit (13) is removed from the bag container (50). The cleaning cycle is set so that this one cleaning is completed within the filling cycle of the automatic filling machine.

When the cleaning of the bag container (50) is completed, the stop by the stopper means (11) is released, and
The automatic filling is performed by transferring to the automatic filling section (40) and sending it to a predetermined filling position in accordance with the filling cycle.

As described above, according to the present invention, the used empty bag container (50) is transferred with the opened cylindrical filling port (52) facing upward and the bottom discharge port (53) closed. During the transfer to the automatic filling unit while being suspended and supported by the supporting means (3), the cleaning body unit (13) having the suction pipe (14) and the first and second air injection nozzles (15) and (16). ) From the cylindrical filling port (52) to the main body (5).
1), the first air injection nozzle (15) blows air to the inner surface of the main body (51), and the second air injection nozzle (16) jets air downward or obliquely downward. The residue on the inner surface of the part is blown down, and the residue of the blown-down product is sucked into a suction pipe (14).
By suctioning through the suction port (14a) at the lower end of
This is for cleaning the inner surface of the bag container (50). Therefore, even if there is a residue of the product remaining in the used bag container (50), it can be supplied and set to the automatic filling machine as it is. Can be.

In the above embodiment, the case where the cleaning device is incorporated in the automatic filling machine is shown. However, it is also possible to constitute the cleaning device as a separate cleaning device separately from the automatic filling machine. . In this case, the used empty bag container (5
The means for suspending and supporting 0) with the bottom discharge port (53) closed and the cylindrical filling port (52) open is not necessarily the transfer and support means as described above. From the viewpoint of the ease of the supply setting operation of the bag container and the feeding operation after cleaning, it is preferable to use the transfer and support means which also serves as the transfer means as described above.

[0034]

As described above, according to the cleaning method and the cleaning apparatus of the present invention, the used bag container is suspended and supported with the discharge port closed and the cylindrical filling port opened. The cleaning main unit inserted from the upper cylindrical filling port blows and sucks air to efficiently discharge and clean residuals and dirt inside. Cleaning can be easily performed immediately before the process. Therefore, it is not necessary to wash the empty bag container by a specialized trader or another factory for repeated use, and the cost and cost for such washing and cleaning can be reduced.

[Brief description of the drawings]

FIG. 1 shows an automatic filling machine incorporating a cleaning device of the present invention.
It is a side view which shows the outline of an Example.

FIG. 2 is a schematic plan view of the same.

FIG. 3 is a schematic sectional view of a cleaning device according to the first embodiment;

FIG. 4 is an enlarged front view of a cleaning main unit in the cleaning device.

FIG. 5 is a side view of the same.

FIG. 6 is a partial plan view of the same.

FIG. 7 is an enlarged front view of a first air injection nozzle portion.

FIG. 8 is a cross-sectional plan view of the same.

FIG. 9 is an enlarged front view of a second air injection nozzle portion.

FIG. 10 is a cross-sectional plan view of the above.

FIG. 11 is a perspective view illustrating a bag container.

FIG. 12 is a perspective view of a bag container in which a flange frame is attached to a cylindrical filling port.

FIG. 13 is an enlarged cross-sectional view of a cylindrical filling port to which a flange frame is attached.

[Explanation of symbols]

 (1) Mounting frame (2) Supply table (3) Transfer / support means (10) Cleaning device (11) Stopper means (13) Cleaning body unit (14) Suction pipe (14a) Suction port (15) First Air injection nozzle (16) Second air injection nozzle (17) Support plate (18) Cage-shaped protector (20) (25) Compressed air supply pipe (21) Piping member (23) Mounting member (24) Flexible hose (30) Wire (32) Winch (34) Rubber packing (40) Automatic filling section (45) Filling port (50) Bag container (51) Main body (52) Cylindrical filling port (53) Discharge port (55) Flange frame

──────────────────────────────────────────────────続 き Continuation of front page (56) References JP-A-57-42386 (JP, A) JP-A-7-195049 (JP, A) JP-A-10-296201 (JP, A) JP-A 58-42 124951 (JP, A) JP-A-59-174426 (JP, A) JP-A-61-252046 (JP, A) JP 7-30147 (JP, Y2) JP 44864 (JP, Y2) Japanese Patent Publication No. 47-15023 (JP, B1) Japanese Utility Model Publication No. 50-36860 (JP, Y1) Japanese Utility Model Publication No. 36-32073 (JP, Y1) (58) Fields investigated (Int. Cl. ⁷ , DB name) B08B 9 / 093,9 / 20 B08B 5/00-5/04

Claims (4)

(57) [Claims] 1. A method for cleaning a bag container having a cylindrical filling port at an upper portion of a main body portion and a discharge port at a bottom portion, wherein the discharge port is closed and the cylindrical filling port is opened .
The bag container is supported in a suspended state such that the cylindrical filling port is at the top, and a vertical suction pipe having a suction port at a lower end portion thereof,
A cleaning main unit having an outwardly directed first air injection nozzle and a downwardly or obliquely downwardly directed second air injection nozzle provided around the middle thereof is inserted into the main body from the upper cylindrical filling port. Insert the first air injection nozzle
By blowing air against the body inner surface of the bag container skip blow the residue or the like by Le, and the second air injection nozzle
Blow air downward or diagonally downward
Cleaning the bag container, wherein the blown-down residue and the like are dropped downward, and the blown-down residue and the like are suctioned through a suction port at a lower end portion of the suction pipe and discharged to the outside of the bag container for processing. Method. 2. A tubular fill port on the top of the main body portion, a cleaning apparatus of a bag container outlet provided at the bottom, while being opened occluded tubular filling opening of the outlet, before
A supporting means for supporting the bag container in a suspended state such that the cylindrical filling port faces upward; and a suction port at a lower end portion above the supporting means.
A vertical suction pipe, a first air injection nozzle which is disposed around the middle of the suction pipe and injects air outward, and
And a second air injection nozzle for injecting air downward or obliquely downward, and is provided so as to be freely insertable into the main body from the cylindrical filling port at the top of the bag container suspended and supported by the support means. A cleaning device for a bag container, comprising: 3. The bag container support means is a transfer and support means which also serves as a transfer means for feeding the bag container to an automatic filling step, wherein the cleaning main unit is provided during the transfer. Item 3. A cleaning device for a bag container according to Item 2. 4. The cleaning main unit includes a plurality of first air jets that inject air in a radial direction at predetermined intervals in an axial direction of a suction pipe .
The bag container cleaning apparatus according to claim 2 or 3, wherein the air injection nozzles and the second air injection nozzles that inject air downward or obliquely downward are alternately arranged.