Powder bagging machine with dust-collecting hood

Abstract

To make it difficult for powder to leak when a powder-filled part is removed from a packaging bag after the powder is filled in the packaging bag. A powder bagging machine (10) capable of filling powder into packaging bags, a powder filling unit (300) that fills the packaging bag (20) with powder and has an inserting member (301) that can be inserted into the packaging bag (20); a dust collecting section (400) that absorbs powder that may leak from the packaging bag (20); The dust collecting unit 400 provides the powder bagging machine 10 with a movable structure along the inserting member 301 .

Description

[Technical Field]

[0001] The present invention relates to a powder bagging machine for filling powder into packaging bags. [Background technology]

[0002] 2. Description of the Related Art Powder filling machines fill packaging bags with powder such as wheat flour, powdered feed, and mineral powder by holding the packaging bag upright and inserting a supply pipe into the valve opening of the packaging bag.

[0003] When this powder bagging machine fills the packaging bag with powder through the valve opening, the packaging bag with the powder supplied is transported to the sealing position without sealing the opening, and after the valve opening is sealed by the sealing device, the bag is discharged from the sealing device.

[0004] In this type of conventional sealing device, packaging bags that have already been supplied with powder are received from a powder bagging machine, and the unsealed packaging bags are inverted from an upright position and placed flat on a roller or belt conveyor, which then transports the filled packaging bags to the sealing position.

[0005] During this transport, the supplied packaging bags, which are laid flat on the conveyor with their top and bottom edges (the shorter sides of the bag) aligned with the transport direction, are tilted by a posture tilting mechanism to an appropriate angle relative to a direction perpendicular to the transport direction in a plan view.

[0006] The supplied packaging bags, which are fed out from the posture tilting mechanism and laid flat, are then sandwiched between a roller conveyor (or a belt conveyor) and a press conveyor and pressed from above to flatten the supplied packaging bags and maintain their thickness at a specified dimension, after which the filled packaging bags are sealed by a sealing mechanism.

[0007] The sealing mechanism consists of a heater unit and a cooler unit. The heater unit heats and melts the adhesive that has been applied and dried on the inside surface of the valve orifice, joining the inside surfaces of the valve orifice together, and the cooler unit cools and solidifies the adhesive, sealing the valve orifice.

[0008] Patent Document 1 discloses a sealing device with a simple structure and high sealing performance for closing the opening of a packaging bag containing powder such as wheat flour, powdered feed, or mineral powder. [Prior art documents] [Patent documents]

[0009] [Patent Document 1] Patent No. 6278289 Summary of the Invention [Problem to be solved by the invention]

[0010] In a conventional powder feeder, a method of feeding powder into a packaging bag involves inserting a blowing tube into a hole in the packaging bag and filling the bag with powder.

[0011] However, with conventional blowing tubes, there is a risk of powder leaking when the blowing tube (powder filling section) is removed from the packaging bag after the powder has been filled into the packaging bag.

[0012] A main object of the present invention is to make it difficult for powder to leak when the powder filling portion is removed from the packaging bag after the powder has been filled into the packaging bag.

[0013] Another object of the present invention is to make it difficult for powder to leak when the powder filling section is inserted into a packaging bag. [Means for solving the problem]

[0014] A powder bagging machine according to a first aspect of the present invention is a powder bagging machine capable of filling powder into packaging bags, a powder filling section that fills the packaging bag with powder and has an insertion member that can be inserted into the packaging bag; a dust collecting unit that absorbs powder that may leak from the packaging bag; The dust collecting unit is a powder bagger that is movable along the inserting member.

[0015] The dust collecting section moves along the insertion member, making it difficult for powder to leak from the opening of the packaging bag (the insertion portion of the insertion member).

[0016] A powder bagging machine according to a second aspect of the present invention is the powder bagging machine according to the first aspect, The dust collecting unit has a dust collecting opening at the tip for sucking up powder, The dust collection opening is ring-shaped with an open inner circumferential surface, and the insert member is disposed in the center of the ring shape.

[0017] In this embodiment, the yz plane is substantially ring-shaped, and the insertion member is located in the center of the ring-shaped dust collection port, so that powder adhering to the insertion member can also be sucked in.

[0018] Furthermore, since the dust collection opening is ring-shaped, the opening of the packaging bag can be easily sealed, preventing powder from leaking.

[0019] A powder bagging machine according to a third aspect of the present invention is the powder bagging machine according to the second aspect, In the powder bagging machine, the opening of the packaging bag moves along the insertion member, and the dust collection opening follows the packaging bag.

[0020] The dust collection opening can follow the movement of the packaging bag while being in close contact with the opening of the packaging bag, thereby preventing the leakage of powder.

[0021] A powder bagging machine according to a fourth aspect of the present invention is the powder bagging machine according to the second aspect, The dust collection unit includes a cylinder having a rod for moving the dust collection port unit; a dust collection pipe through which the powder sucked in by the dust collection port portion passes, The dust collection pipe is extendable and retractable in accordance with the movement of the rod of the cylinder.

[0022] The dust collection pipe is extendable and retractable, so that the dust collection opening can be moved.

[0023] In addition, the position of the dust collection opening can be adjusted by controlling the cylinder.

[0024] A powder bagging machine according to a fifth aspect of the present invention is the powder bagging machine according to the first aspect, The powder filling unit includes a blowing unit that fills powder into a packaging bag, a gas supply unit that supplies gas to the blowing unit; an intake section that sucks gas from the packaging bag, The powder bagging machine is provided with a plurality of the intake sections.

[0025] By providing a plurality of intake sections, the gas inside the packaging bag can be efficiently sucked out.

[0026] Furthermore, even if one of the multiple intake sections becomes clogged with powder, the other intake sections will continue to operate, so the intake section will not lose its function. [Brief explanation of the drawings]

[0027] [Figure 1] 1 is a perspective view of a powder bagging machine according to an embodiment of the present invention; [Figure 2] FIG. 2 is a partial perspective view of the powder bagging machine according to the embodiment. [Figure 3] FIG. 2 is a partial perspective view of the powder bagging machine according to the embodiment. [Figure 4] FIG. 2 is a partial perspective view of the powder bagging machine according to the embodiment. [Figure 5] FIG. 2 is a perspective view of a cross section of the powder bagging machine according to the embodiment taken along line AA. [Figure 6] FIG. 2 is a perspective view of a powder filling unit in the powder bagging machine according to the embodiment. [Figure 7] FIG. 5 is a BB cross-sectional view of the powder filling section of the powder bagging machine according to the embodiment. [Figure 8] FIG. 2 is a perspective view of a powder filling unit in the powder bagging machine according to the embodiment. [Figure 9] FIG. 2 is a perspective cross-sectional view of the powder filling section of the powder bagging machine according to the embodiment, taken along the line CC. DETAILED DESCRIPTION OF THE INVENTION

[0028] A powder bagging machine 10 according to this embodiment will be described with reference to the drawings.

[0029] As shown in FIGS. 1 to 5, the powder bagging machine 10 according to this embodiment includes a hopper unit 100 that supplies powder into the powder bagging machine 10; A slider unit 200 is disposed below the hopper unit 100 and moves the powder by air. a powder filling unit (300) that fills the packaging bag (20) with powder; and a dust collecting section (400) disposed around the blowing pipe (310) of the powder filling section (300).

[0030] The hopper section 100 includes a hopper body section 110 that supplies powder. An agitator (not shown) may be provided in the hopper main body 110 at the bottom (negative direction of the z-axis).

[0031] In this embodiment, the hopper main body 110 has a circular shape when viewed from the xy plane, and powder supplied from above flows downward.

[0032] The lower part (negative z-axis direction side) of the hopper main body part 110 is connected to the slider part 200 , and the powder inside the hopper main body part 110 is supplied to the slider part 200 .

[0033] The hopper main body 110 is provided with a window 111 through which the inside can be seen, and an operator can check the state of the powder inside the hopper main body 110.

[0034] The slider portion 200 includes a vertical slider portion 210 that is connected to the hopper main body portion 110 and moves the powder supplied from the hopper main body portion 110 in a vertical direction; and a horizontal slider portion 220 that moves the powder supplied from the vertical slider portion 210 in the horizontal direction.

[0035] In this embodiment, the slider portion 200 moves the powder by gas. Note that the gas in this embodiment is air, but it may be gas other than air, such as nitrogen.

[0036] The vertical slider portion 210 has a circular shape in the xy plane, and is conical (funnel-shaped) with a narrower lower side (negative z-axis direction side).

[0037] The powder in the vertical slider section 210 is supplied to the horizontal slider section 220 disposed below the vertical slider section 210 .

[0038] The powder supplied to the horizontal slider section 220 is transported in the negative x-axis direction by the gas and supplied to the powder filling section 300 .

[0039] In this embodiment, the powder is conveyed by an air slider, but a general screw type may also be used.

[0040] As shown in FIGS. 6 to 9, the powder filling section 300 includes a blowing section 310 that fills the powder together with gas into the packaging bag 20; a gas supply unit 320 that supplies gas to the blowing unit 310; a gas exhaust section 330 that sucks in air and exhausts the gas inside the packaging bag 20; The gas exhaust section 330 is provided with a clogging prevention section 340 for discharging gas to prevent clogging with powder.

[0041] The powder filling section 300 also includes an insertion member 301 that is inserted into the opening 21 of the packaging bag 20, and an attachment surface section 302 on which the dust collecting section 400 is disposed.

[0042] The tip side (x-axis negative direction side) of powder filling section 300 is inserted into opening 21 of packaging bag 20, and packaging bag 20 is filled with powder.

[0043] The blowing section 310 is a through hole provided at the tip side of the powder filling section 300, through which the powder and gas supplied from the horizontal slider section 220 pass, and the powder is filled into the packaging bag 20 from the blowing tip section 311 through the opening 21 of the packaging bag 20.

[0044] The gas supply unit 320 has a supply tip 321, and in this embodiment, impact air is discharged from the supply tip 321 to the blowing unit 310.

[0045] This blows away any remaining powder inside the pipe of the blowing part 310, preventing powder from accumulating inside the blowing part 310.

[0046] The gas exhaust section 330 has an intake tip end 331 and an intake base end 332, and sucks in the gas from the intake tip end 331 to suck in the gas inside the packaging bag 20, and forcibly exhausts the gas inside the packaging bag 20.

[0047] A plurality of intake tips 331 may be provided, and in this embodiment, four tips (331a, 331b, 331c, 331d) are provided above the blowing tip 311.

[0048] In this embodiment, suction base ends 332 are provided on the base end side of the powder filling section 300 in accordance with the number of suction tip ends 331 .

[0049] Specifically, in this embodiment, the intake tip ends 331 are provided at four locations (331a, 331b, 331c, 331d), and the intake base ends 332 are provided at four corresponding locations (332a, 332b, 332c, 332d).

[0050] The clogging prevention section 340 discharges gas into the gas exhaust section 330 to prevent the powder from clogging the gas exhaust section 330 when the gas exhaust section 330 also sucks in the powder when it sucks in the gas inside the packaging bag 20.

[0051] Specifically, as shown in FIG. 9, the gas in the clogging prevention section 340 makes a U-turn at the tip side of the insertion member 301 and is discharged to the gas exhaust section 330 in the same direction as the gas sucked into the gas exhaust section 330.

[0052] When there are multiple intake tip portions 331, it is preferable to provide the same number of clogging prevention portions 340.

[0053] Specifically, in this embodiment, intake tip portions 331 are provided in four locations (331a, 331b, 331c, 331d), intake base portions 332 are provided in four corresponding locations (332a, 332b, 332c, 332d), and corresponding clogging prevention portions 340 are also provided in four locations (340a, 340b, 340c, 340d).

[0054] As shown in Figures 1 to 5, when the insertion member 301 of the powder filling section 300 is inserted into the packaging bag 20, the dust collection section 400 moves together with the movement of the insertion member 301 of the powder filling section 300 at the opening 21 of the packaging bag 20.

[0055] The dust collection unit 400 is arranged around the insert member 301 of the powder filling unit 300 and includes a dust collection opening 410 that can come into contact with the opening 21 of the packaging bag 20; a cylinder 420 for moving the dust collection port 410 in the horizontal direction (x-axis direction); and a dust collection pipe 430 which is a passage for the powder collected from the dust collection port 410.

[0056] Dust collection port 410 is generally ring-shaped when viewed in the yz plane, has a thickness in the x-axis direction, and collects powder from the inner ring side.

[0057] The dust collection opening 410 is movable along the insertion member 301, and when the insertion member 301 is inserted into the packaging bag 20, the dust collection opening 410 moves toward the base end of the insertion member 301, in the positive x-axis direction.

[0058] When inserting member 301 is removed from packaging bag 20, dust collection opening 410 moves in the negative x-axis direction, which is the tip side of inserting member 301, following opening 21 of packaging bag 20.

[0059] The dust collection opening 410 has a surface 411 that can come into contact with the opening 21 of the packaging bag 20, a back surface 412 disposed on the attachment surface portion 302 side of the powder filling portion 300; The side surface 413 is disposed between the front surface 411 and the back surface 412.

[0060] That is, dust collection opening 410 has an opening on the inner side surface (inner circumferential surface) between ring-shaped front surface 411 and back surface 412, and powder is collected from the opening.

[0061] The surface 411 of the dust collection opening 410 is ring-shaped when viewed in the yz plane, and the radius of the inner circle 411a is wider than the width of the insertion member 301 when viewed in the yz plane and narrower than the width of the opening 21 of the packaging bag 20.

[0062] When the packaging bag 20 is removed from the insertion member 301, the dust collection opening 410 moves in the negative x-axis direction along with the movement of the opening 21 of the packaging bag 20 in the negative x-axis direction, so that the dust collection opening 410 sucks in (collects) powder adhering to the insertion member 301, powder leaking from the opening 21, and powder leaking from the blowing section 310 after the powder has been filled into the packaging bag 20.

[0063] By sucking the powder and gas through the dust collection opening 410, the opening 21 of the packaging bag 20 comes into close contact with the dust collection opening 410, making it difficult for the powder to leak from the opening 21.

[0064] A brush may be provided inside dust collection port 410. This makes it possible to remove powder adhering to the inside of dust collection port 410.

[0065] In this embodiment, the cylinder 420 is an electric cylinder, and moves the dust collecting unit 400 (moves in the x-axis direction).

[0066] Specifically, as the cylinder 420 moves, the dust collection port 410 and a part of the dust collection duct 430 move in the x-axis direction.

[0067] Since cylinder 420 is well known, detailed description will be omitted, but cylinder 420 has a motor 421 and a rod 422. Cylinder 420 is connected to a control unit (not shown) of powder bagging machine 10, and the movement of cylinder 420 is controlled.

[0068] Therefore, the position of the dust collection opening 410 can be adjusted, and the position of the dust collection opening 410 can be aligned with the position of the opening 21 of the packaging bag 20.

[0069] Specifically, when rod 422 of cylinder 420 moves in the negative x-axis direction, dust collection port 410 moves in the negative x-axis direction.

[0070] When dust collection port 410 moves in the negative x-axis direction, dust collection duct 430 extends.

[0071] The dust collection pipe 430 is connected to the dust collection port 410, and the powder sucked into the dust collection port 410 passes through the dust collection pipe 430 and is collected.

[0072] The dust collection pipe 430 is extendable and contracts in accordance with the movement of the rod 422 of the cylinder 420 .

[0073] The present invention can be implemented in various forms with various improvements, modifications, or variations added thereto without departing from the spirit of the invention. [Explanation of symbols]

[0074] 10 Powder bagging machine 100 Hopper section 200 Slider section 300 Powder filling section 301 Insertion member 302 Mounting surface 310 Blowing section 320 Gas supply unit 330 Gas exhaust section 340 Clogging prevention unit 400 Dust collection unit 410 Dust collection port 420 cylinder 430 Dust collection pipe

Claims

1. A powder bagging machine capable of filling powder into packaging bags, a powder filling section that fills the packaging bag with powder and has an insertion member that can be inserted into the packaging bag; a dust collecting unit that absorbs powder that may leak from the packaging bag, The dust collecting unit has a dust collecting opening at the tip for sucking up powder, The dust collection port is ring-shaped with an open inner circumferential surface, and the insertion member is disposed in the center of the ring shape. A powder bagging machine in which the opening of the packaging bag moves along the insertion member, the dust collection unit is movable along the insertion member, and the dust collection opening unit follows the packaging bag.

2. A powder bagging machine capable of filling powder into packaging bags, a powder filling section that fills the packaging bag with powder and has an insertion member that can be inserted into the packaging bag; a dust collecting unit that absorbs powder that may leak from the packaging bag, The dust collecting unit has a dust collecting opening at the tip for sucking up powder, The dust collection unit is movable along the insertion member, and a cylinder has a rod for moving the dust collection port unit; a dust collection pipe through which the powder sucked in by the dust collection port portion passes, The dust collection port is ring-shaped with an open inner circumferential surface, and the insertion member is disposed in the center of the ring shape. The dust collection pipe is extendable and retractable in accordance with the movement of the rod of the cylinder.

3. The powder filling unit includes a blowing unit that fills powder into a packaging bag, a gas supply unit that supplies gas to the blowing unit; an intake section that sucks gas from the packaging bag, 2. The powder bagging machine according to claim 1, wherein a plurality of said intake sections are provided.

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