JP2022014555A - Auger filler and filling packaging machine - Google Patents

Abstract

To prevent a biting of a seal part of a packaging bag due to an unexpected fall of a filling into the packaging bag or a projection and an accumulation of the filling in the packaging bag at an auger filler for filling the packaging bag with powder or viscous body.SOLUTION: A hopper stores a powder or viscous filling. A funnel in a pipe shape is arranged vertically at a lower end portion of the hopper and discharges the filling supplied from the hopper from a discharge port of a lower end. A screw is inserted into the hopper and the funnel and is freely rotatably installed. A screw drive part starts a rotation drive of the screw at a prescribed filling start timing to discharge the filling, and stops the rotation drive of the screw at a prescribed filling completion timing to stop the transportation of the filling. A discharge branching lid is installed at the discharge port of the funnel to branch a discharge direction of the filling into a diagonal lower left direction and a diagonal lower right direction.SELECTED DRAWING: Figure 1

Description

The present invention relates to an auger filling device, and more particularly to an auger filling device and a filling / packaging machine for filling a packing bag with a filling material by rotary transport.

Conventionally, when filling a packaging bag or cup container with a filling such as fine powder or powder or mucilage that easily hardens, a funnel is connected to the lower part of a hopper that stores raw materials, and the funnel is engaged and inserted into the funnel. An auger filling device that fills a packing bag with a filling by rotating a screw is known (see, for example, Patent Document 1).

Such an auger filling device normally operates to fill each packaging bag intermittently, but a slight filling of the funnel discharge port is expected even when the screw is paused between fillings. It may fall at the wrong timing, and the filling may be caught between the seals of the packaging bag, resulting in defective products. Therefore, there has been proposed a filling device in which a shutter portion having a conical tapered surface is provided at the tip of the screw and the filling material is radially discharged in the packaging bag (see, for example, Patent Document 2).

Japanese Unexamined Patent Publication No. 2001-018902 Japanese Patent No. 421050

In the above-mentioned conventional technique, the filling material is discharged radially in the packaging bag, whereby the filling material is smoothly diffused and discharged in the packaging bag. However, when the filling material is discharged radially in the packaging bag, the packaging bag in the bag making is shaken in the entire circumferential direction, which may cause a bag making defect.

The present invention has been created in view of such a situation, and in an auger filling device for filling a packaging bag with powder or a viscous material, the filling material may be unexpectedly dropped into the packaging bag or filled in the packaging bag. The purpose is to prevent objects from getting caught in the sealed portion of the packaging bag due to protrusion and accumulation.

The present invention has been made to solve the above-mentioned problems, the first side surface thereof is a hopper containing a powdery or viscous filling material, and the hopper is vertically provided at the lower end portion of the hopper. A pipe-shaped funnel that discharges the filling supplied from the hopper from the discharge port at the lower end, a screw that is rotatably installed through the inside of the hopper and the funnel, and the above at a predetermined filling start timing. Installed at the screw drive unit that starts the rotary drive of the screw to discharge the filler and stops the rotary drive of the screw at a predetermined filling end timing to stop the transfer of the filler, and the discharge port of the funnel. The auger filling device is provided with a discharge branch lid for branching the discharge direction of the filling material in the diagonally lower left direction and the diagonally lower right direction. This has the effect of branching the discharge direction of the filler into the diagonally lower left direction and the diagonally lower right direction.

Further, on the first side surface, a diagonally lower left discharge port that discharges one of the fillers branched by the discharge branch lid in the diagonally lower left direction and an oblique lower right of the other filler branched by the discharge branch lid. The diagonally lower right discharge port that discharges in the direction and the cylindrical shape that engages with the outer peripheral edge of the discharge branch lid are vertically installed so as to cover the funnel, and the diagonal lower left discharge port and the diagonal lower right discharge port. The shutter cylinder that opens and closes the outlet, the shutter cylinder is moved upward at the filling start timing to open the diagonal lower left discharge port and the diagonal lower right discharge port, and the shutter cylinder is moved downward at the filling end timing. A shutter drive unit that closes the diagonally lower left discharge port and the diagonal lower right discharge port may be further provided. This has the effect of moving the shutter tube up and down to prevent the filling from unintentionally falling from the funnel discharge port.

Further, on the first side surface, the discharge branch lid is installed so as to prevent the filling from being discharged in the hanging direction, and the filling is branched and guided in the diagonally lower left direction from the discharge port of the funnel. A slope portion and a right slope portion for branching and guiding the filling material in a diagonally lower right direction from the discharge port of the funnel may be provided.

In this case, the discharge branch lid may have an asymmetric angle with respect to the vertical direction of the left slope portion and the right slope portion. This has the effect of setting the distribution of the amount of filling to be discharged by making the opening areas of the diagonally lower left discharge port and the diagonal lower right discharge port different from each other.

Further, the intersection point where the guide slopes of the left slope portion and the right slope portion are extended may be different from the axis center of the funnel. This has the effect of setting the distribution and direction of the amount of filling to be discharged.

Further, on the first side surface, the shutter cylinder includes a front hanging portion in which the front end edge of the shutter cylinder protrudes and a rear hanging portion in which the rear portion protrudes, and the front hanging portion and the rear hanging portion. May be arranged so as to close the front and rear of the discharge branch lid when the shutter cylinder moves upward and the diagonal lower left discharge port and the diagonal lower right discharge port are opened, respectively. This has the effect of preventing ejection from the front or the rear.

The second aspect of the present invention is a filling and packaging machine for producing a packaging bag in which a powdery or viscous filling material is filled and packaged, from a packaging film roll in which a long packaging film is wound. A wrapping film feeding device that pulls out and conveys the wrapping film, a forming device that forms the conveyed wrapping film into two wrapping films or a half-folded wrapping film according to the shape of the wrapping bag, and the above. A vertical sealing device that forms a tubular wrapping film by applying a vertical seal along the transport direction to the molded wrapping film, and a continuous wrapping bag that applies a horizontal seal perpendicular to the transport direction to the tubular wrapping film. The horizontal sealing device for making the bag, the above-mentioned first side surface auger filling device for filling the filling in the upper open packaging bag in the middle of the bag making, and the above-mentioned horizontal sealing of the continuous packaging bag. It is a filling and packaging machine equipped with a cutter device that cuts a position into individual packaging bags.

Further, on the second side surface, the tubular packaging film is inscribed in at least one direction from the inside toward the discharge direction of the diagonally lower left discharge port and the discharge direction of the diagonal lower right discharge port. A guide member may be further provided to maintain the tension of the packaging film in the width direction. This has the effect of maintaining the tension of the tubular wrapping film in the width direction.

According to the present invention, in an auger filling device for filling a packaging bag with powder or a viscous material, the packaging is caused by an unexpected drop of the filling into the packaging bag or the filling protruding and accumulating in the packaging bag. It can have an excellent effect of being able to prevent biting into the seal portion of the bag.

It is a front view which shows the appearance example of the vertical filling packaging machine 1 in embodiment of this invention. It is sectional drawing of the shutter open state about an example of the shutter opening / closing mechanism of the auger filling device 2 in embodiment of this invention. It is sectional drawing of the shutter closed state regarding an example of the shutter opening / closing mechanism of the auger filling device 2 in embodiment of this invention. It is sectional drawing of the shutter open state of the 1st example of the branch structure in the vicinity of the discharge port 107 of the funnel 102 in the embodiment of this invention. It is sectional drawing of the shutter closed state of the 1st example of the branch structure near the discharge port 107 of the funnel 102 in embodiment of this invention. It is sectional drawing in the shutter open state of the 2nd example of the branch structure in the vicinity of the discharge port 107 of the funnel 102 in the embodiment of this invention. It is sectional drawing of the shutter closed state of the 2nd example of the branch structure near the discharge port 107 of the funnel 102 in embodiment of this invention. It is sectional drawing of the 3rd example of the branch structure in the vicinity of the discharge port 107 of the funnel 102 in the embodiment of this invention in the shutter open state. It is sectional drawing in the shutter closed state of the 3rd example of the branch structure in the vicinity of the discharge port 107 of the funnel 102 in the embodiment of this invention. It is sectional drawing of the front of the 4th example of the branch structure in the vicinity of the discharge port 107 of the funnel 102 in the embodiment of this invention in the shutter open state. It is sectional drawing of the right side surface in the shutter open state of the 4th example of the branch structure in the vicinity of the discharge port 107 of the funnel 102 in the embodiment of this invention. It is sectional drawing of the front of the 4th example of the branch structure in the vicinity of the discharge port 107 of the funnel 102 in the embodiment of this invention in the shutter closed state. It is sectional drawing of the right side surface of the shutter closed state of the 4th example of the branch structure in the vicinity of the discharge port 107 of the funnel 102 in the embodiment of this invention. It is sectional drawing of the shutter open state of the shape modification example of the shutter cylinder 504 in embodiment of this invention. It is sectional drawing of the shutter closed state of the shape modification example of the shutter cylinder 504 in embodiment of this invention.

FIG. 1 is a front view showing an external example of the vertical filling / packaging machine 1 according to the embodiment of the present invention.

The vertical filling and packaging machine 1 is a device for packaging a filling material and forming a packaging bag containing the filling material. The vertical filling and packaging machine 1 includes an auger filling device 2, a shutter opening / closing device 3, a bag making device 4, a bag making pipe 5, a vertical sealing device 6, a horizontal sealing device 7, a cutter device 8, a transport sliding table 9, and The control device 10 is provided.

The auger filling device 2 is a device that conveys and discharges the filling while stirring by the rotation of the screw (auger). The shutter opening / closing device 3 is a device that opens / closes the discharge port of the auger filling device 2.

The bag making device 4 is a device for manufacturing a packaging bag from a strip-shaped packaging film. The bag making pipe 5 is a pipe for guiding a strip-shaped wrapping film.

The vertical sealing device 6 is a device that performs vertical sealing along the transport direction on the packaging film F2 formed by the bag making device 4.

The horizontal sealing device 7 is a device provided below the vertical sealing device 6 and performs horizontal sealing perpendicular to the transport direction to the tubular packaging film F3 that has been vertically sealed by the vertical sealing device 6. The discharge port of the auger filling device 2 is inserted above the continuous packaging bag F4 provided with the horizontal seal, and the filling is supplied. The continuous packaging bag F4 filled with the filling is similarly provided with a vertical seal. In this way, the filling is stored in each of the continuous packaging bags F4.

The cutter device 8 is provided below the horizontal sealing device 7, and is an individual packaging bag in which the center line portion of the horizontal sealing is cut off vertically with respect to the continuous packaging bag F4 that has been laterally sealed by the horizontal sealing device 7. It is a device to make F5.

The transport sliding table 9 is for carrying out the individual packaging bag F5 filled with the filling as a product.

The control device 10 is a controller that receives an operation input and controls the overall operation of the vertical filling / packaging machine 1.

In this embodiment, a packaging bag is assumed as a filling target. More specifically, it is suitable for a pillow packaging bag, a three-way seal packaging bag, a four-way seal packaging bag, and the like. Further, a cup container for accommodating instant noodles or cup soup may be filled. That is, it is assumed that the filling target can avoid the accumulation of the filling by controlling the discharge direction and the amount.

2 and 3 are sectional views relating to an example of a shutter opening / closing mechanism of the auger filling device 2 according to the embodiment of the present invention. FIG. 2 shows a shutter open state, and FIG. 3 shows a shutter closed state.

The auger filling device 2 includes a filling storage hopper 100, a screw 101, a funnel 102, a guide rod 103, a shutter cylinder 104, a shutter cylinder upper and lower cylinder 105, and a discharge branch lid 106.

The filling storage hopper 100 is a hopper for storing and storing the filling P to be packaged. In this embodiment, it is assumed that the filling material is in the form of a powder or a viscous material that easily hardens. For example, curry flakes, cocoa powder, soybean flour, potato starch and the like can be mentioned.

The funnel 102 is vertically provided at the lower end of the filling storage hopper 100, and is pipe-shaped to discharge the filling supplied from the filling storage hopper 100 from the discharge port at the lower end.

The screw 101 is rotatably installed by inserting the inside of the filling storage hopper 100 and the funnel 102. The screw 101 rotates to convey the filling toward the discharge port of the funnel 102.

The guide rod 103 is a guide member that is guided to the bag making pipe 5 and spreads the packaging film vertically sealed by the vertical sealing device 6 in the width direction. As a result, the tubular packaging film F3 is stretched flat in the bag width direction, and tension in the bag width direction is maintained like the packaging film F3A.

The shutter cylinder 104 is a cylinder-shaped shutter that covers the funnel 102. The shutter cylinder 104 is vertically installed to open and close the discharge port of the funnel 102. The shutter cylinder upper / lower cylinder 105 drives the vertical movement of the shutter cylinder 104 to cause the shutter cylinder 104 to open / close the discharge port. That is, by moving the shutter cylinder 104 upward, the shutter is opened as shown in FIG. 2, and by moving the shutter cylinder 104 downward, the shutter is closed as shown in FIG. In this example, the shutter cylinder 104 has a V-shaped tip.

The discharge branch lid 106 is installed at the discharge port of the funnel 102 to branch the discharge direction of the filler into the diagonally lower left direction and the diagonal right direction. The discharge branch lid 106 is installed so as to prevent the filling material from being discharged in the hanging direction. As a result, the filling material discharged from the discharge port of the funnel 102 is branched into a filling material P1 in the diagonally lower left direction and a filling material P2 in the diagonally lower right direction.

It is preferable that the discharge direction branched in two directions is a direction that has little influence on the packaging of the packaging bag and the transportation of the container. For example, in the case of a flat packaging bag, it is preferable to set the width direction of the packaging bag as the respective discharge directions. Further, in the case of a cup-shaped container, it is preferable that the side surface of the container is set to the direction orthogonal to the transport direction regulated by the guide rail or the like as the respective discharge directions.

4 and 5 are cross-sectional views of a first example of a branch structure in the vicinity of the discharge port 107 of the funnel 102 according to the embodiment of the present invention. FIG. 4 shows a shutter open state, and FIG. 5 shows a shutter closed state.

The discharge branch lid 106 in this first example includes a left slope portion 108 and a right slope portion 109 in order to branch the filling from the discharge port 107 of the funnel 102 to the left and right. That is, the left slope portion 108 guides the filler LP1 branched to the lower left from the discharge port 107 of the funnel 102 to the lower left discharge port 110 in the diagonally lower left direction. Further, the right slope portion 109 guides the filler RP1 branched to the lower right from the discharge port 107 of the funnel 102 to the lower right discharge port 111 in the diagonally lower right direction.

In this first example, the angle α1 formed by the left slope portion 108 with respect to the vertical direction is equal to the angle β1 formed by the right slope portion 109 with respect to the vertical direction. That is, the discharge branch lid 106 in this first example discharges a uniform flow rate to the left and right in symmetrical directions at the lower left and the lower right.

6 and 7 are cross-sectional views of a second example of the branch structure in the vicinity of the discharge port 107 of the funnel 102 in the embodiment of the present invention. FIG. 6 shows a shutter open state, and FIG. 7 shows a shutter closed state.

The discharge branch lid 206 in this second example includes a left slope portion 208 and a right slope portion 209 in order to branch the filling from the discharge port 107 of the funnel 102 to the left and right. That is, the left slope portion 208 guides the filler LP2 branched to the lower left from the discharge port 107 of the funnel 102 to the lower left discharge port 210 in the diagonally lower left direction. Further, the right slope portion 209 guides the filler RP2 branched to the lower right from the discharge port 107 of the funnel 102 to the lower right discharge port 211 in the diagonally lower right direction.

In this second example, the angle α2 formed by the left slope portion 208 with respect to the vertical direction is smaller than the angle β2 formed by the right slope portion 209 with respect to the vertical direction. That is, in the discharge branch lid 206 in the second example, the discharge direction of the lower left discharge port 210 is downward and the discharge direction of the lower right discharge port 211 is closer to the right as compared with the first example described above. Become. This makes it possible to preset the direction in which the filler is discharged. Further, since the opening area is different on the left and right, the distribution of the amount of the filling to be discharged can be set in advance.

8 and 9 are cross-sectional views of a third example of the branch structure in the vicinity of the discharge port 107 of the funnel 102 in the embodiment of the present invention. FIG. 8 shows a shutter open state, and FIG. 9 shows a shutter closed state.

The discharge branch lid 306 in the third example includes a left slope portion 308 and a right slope portion 309 in order to branch the filling from the discharge port 107 of the funnel 102 to the left and right. That is, the left slope portion 308 guides the filler LP3 branched to the lower left from the discharge port 107 of the funnel 102 to the lower left discharge port 310 in the diagonally lower left direction. Further, the right slope portion 309 guides the filler RP3 branched to the lower right from the discharge port 107 of the funnel 102 to the lower right discharge port 311 in the diagonally lower right direction.

In this third example, the angle α3 formed by the left slope portion 308 with respect to the vertical direction is equal to the angle β3 formed by the right slope portion 309 with respect to the vertical direction. However, a deviation of the deviation amount γ is set between the discharge branch point of the discharge branch lid 306 and the center of the funnel 102. For example, when the discharge branch point of the discharge branch lid 306 is set to the right side, the opening area is different on the left and right, so that the discharge amount of the lower left discharge port 310 is larger than that of the first example described above, and the lower right discharge The discharge amount at the outlet 311 is reduced. Thereby, the distribution of the amount of the filling to be discharged can be set in advance.

10 to 13 are cross-sectional views of a fourth example of the branch structure in the vicinity of the discharge port 107 of the funnel 102 in the embodiment of the present invention. FIG. 10 is a front view of the shutter open state, and FIG. 11 is a right side view of the shutter open state. Further, FIG. 12 is a front view of the shutter closed state, and FIG. 13 is a right side view of the shutter closed state.

The shutter cylinder 404 in the fourth example includes a front hanging portion 413 projecting forward of the tip edge of the shutter cylinder 404 and a rear hanging portion 414 projecting rearward. The front hanging portion 413 and the rear hanging portion 414 close the front and rear of the discharge branch lid 106 when the shutter cylinder 404 moves upward and the diagonal lower left discharge port 410 and the diagonal lower right discharge port 411 open, respectively. Be placed. This makes it possible to prevent discharge from the front and rear other than the regulated discharge ports (diagonal lower left discharge port 410 and diagonal lower right discharge port 411).

14 and 15 are cross-sectional views of an example of shape modification of the shutter cylinder 504 according to the embodiment of the present invention. FIG. 14 shows a shutter open state, and FIG. 15 shows a shutter closed state.

In the above-described embodiment, the tip of the shutter cylinder 104 is formed in a V shape, but the tip may be horizontal as in the shutter cylinder 504 of this shape modification example. In this case, when the shutter cylinder 104 is closed, the discharge branch lid 106 can be hidden from the lateral direction as shown in FIG. It also has the advantage of facilitating manufacturing.

As described above, according to the embodiment of the present invention, in the auger filling device, the discharge direction of the filling from the funnel is branched in two directions to prevent the filling in the packaging bag from accumulating and protruding. In addition, by making the two-branched discharge port openable and closable with a tubular shutter, it is possible to prevent the filling material from falling at an unexpected timing, and at the same time, the filling material is caught in the seal portion of the packaging bag. Can be prevented.

On the other hand, it is conceivable to realize a simple shutter structure by crushing the film with a rod-shaped stopper, but in that case, there is a problem that the falling distance to the horizontal seal portion becomes long. According to this embodiment, such a stopper is unnecessary, the time to reach the lateral seal portion can be shortened, and the entire device can be made compact.

1 Vertical filling and packaging machine 2 Auger filling device 3 Shutter opening / closing device 4 Bag making device 5 Bag making pipe 6 Vertical sealing device 7 Horizontal sealing device 8 Cutter device 9 Transport sliding table 10 Control device 100 Filling storage hopper 101 Screw 102 Funnel 103 Guide rod 104, 404, 504 Shutter cylinder 105 Shutter cylinder Upper and lower cylinder 106, 206, 306 Discharge branch lid 107 Discharge port 108, 208, 308 Left slope 109, 209, 309 Right slope 110, 210, 310, 410 Lower left discharge port 111 , 211, 311, 411 Lower right discharge port 413 Front hanging part 414 Back hanging part

Claims (8)

With a hopper containing powdery or viscous fillings,
A pipe-shaped funnel that is vertically installed at the lower end of the hopper and discharges the filling material supplied from the hopper from the discharge port at the lower end.
A screw that is rotatably installed through the inside of the hopper and the funnel,
A screw drive unit that starts the rotational drive of the screw at a predetermined filling start timing to discharge the filling, and stops the rotational driving of the screw at a predetermined filling end timing to stop the transfer of the filling.
An auger filling device provided at the discharge port of the funnel and provided with a discharge branch lid for branching the discharge direction of the filling material in the diagonally lower left direction and the diagonally lower right direction. An oblique lower left discharge port that discharges one of the fillers branched by the discharge branch lid in the diagonally lower left direction,
An oblique lower right discharge port for discharging the other filler branched by the discharge branch lid in the diagonally lower right direction,
A shutter cylinder having a tubular shape that engages with the outer peripheral edge of the discharge branch lid and is vertically installed so as to cover the funnel to open and close the diagonal lower left discharge port and the diagonal lower right discharge port.
At the filling start timing, the shutter cylinder is moved upward to open the diagonal lower left discharge port and the diagonal lower right discharge port, and at the filling end timing, the shutter cylinder is moved downward to open the diagonal lower left discharge port and the diagonal right. The auger filling device according to claim 1, further comprising a shutter drive unit that closes the lower discharge port. The discharge branch lid is installed so as to prevent the filling from being discharged in the hanging direction, and has a left slope portion for branching and guiding the filling diagonally downward to the left from the discharge port of the funnel, and the filling with the funnel. The auger filling device according to claim 1 or 2, further comprising a right slope portion for branching and guiding in a diagonally lower right direction from the discharge port of the above. The auger filling device according to claim 3, wherein the discharge branch lid has an asymmetric angle with respect to the vertical direction of the left slope portion and the right slope portion. The auger filling device according to claim 3 or 4, wherein the discharge branch lid has an intersection point where the guide slopes of the left slope portion and the right slope portion are extended and different from the axis center of the funnel. The shutter cylinder includes a front hanging portion protruding in front of the tip edge of the shutter cylinder and a rear hanging portion protruding rearward.
The front hanging portion and the rear hanging portion are arranged so as to close the front and rear of the discharge branch lid when the shutter cylinder moves upward and the diagonal lower left discharge port and the diagonal lower right discharge port are opened, respectively. The auger filling device according to any one of claims 2 to 5. A filling and packaging machine that manufactures packaging bags in which powdered or viscous fillings are filled and packaged.
A wrapping film feeder that pulls out and conveys the wrapping film from the wrapping film roll on which the long wrapping film is wound, and
A forming device that forms the transported packaging film into two packaging films or a half-folded packaging film according to the shape of the packaging bag.
A vertical sealing device that forms a tubular wrapping film by applying a vertical seal to the molded wrapping film along the transport direction.
A horizontal sealing device that creates a continuous packaging bag by applying a horizontal seal to the tubular packaging film that is orthogonal to the transport direction.
The auger filling device according to any one of claims 1 to 6, wherein the packing bag having an upper opening in the middle of bag making is filled with the filling material.
A filling and packaging machine including a cutter device that cuts a predetermined position of the horizontal seal of the continuous packaging bag into individual packaging bags. The tubular wrapping film is inscribed in at least one direction from the inside in the discharge direction of the diagonally lower left discharge port and the discharge direction of the diagonal lower right discharge port to maintain the tension of the tubular wrapping film in the width direction. The filling and wrapping machine according to claim 7, further comprising a guide member for making the cylinder.

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