JP3879086B2 - Dewatering machine - Google Patents

Description

  The present invention relates to a water removal machine that removes a liquid such as water droplets adhering by air jet while conveying a water removal object on a conveyor.

  As described in Patent Document 1 (Patent No. 2949662), the applicant of this type of water removal machine has a conveyor and a water removal object conveyed on the conveyor from a number of nozzles. An upper air injection unit that injects air downward, a lower air injection unit that injects air upward from a number of nozzles onto the water removal target to be transported, and air from the nozzles to the water removal target to be transported sideways The thing provided with the side air injection unit which injects already has been provided.

In such a dewatering machine, air is simultaneously injected from a large number of nozzles on the top, bottom, and side, and the water adhering to the water removal object is forcibly splashed. The later turbulent sound was high, and there was a problem of becoming a noise source.
Japanese Patent No. 2949662

  An object of the present invention is to provide a water removal machine that can prevent air injection sound from a large number of nozzles and turbulent sound after injection from going out of the apparatus, and that does not cause any disadvantages in maintenance due to the provision of soundproofing means. Is to provide.

  The present invention relates to a conveyor installed on the upper part of the main body housing, an upper air injection unit that is arranged on the main body housing and jets air downward from a large number of nozzles to a water removal target conveyed on the conveyor, and a conveyor In the dewatering machine, which is disposed in the main body housing on the lower side and includes a lower air injection unit that injects air upward from a large number of nozzles to a water removal object to be conveyed, the following configuration is provided: It is characterized by that.

(1) The upper air injection unit is supported in a box-shaped upper unit cover that covers the conveyor from above.
(2) A soundproof cover in which a sound absorbing material is interposed between a box-shaped main body that covers the upper unit cover and a sound insulating plate that covers the inner surface of the main body from the inside is mounted on the main body housing so as to be openable and closable.
(3) An exhaust fan that forms a gap between the inner surface of the soundproof cover main body and the sound absorbing material, and has a plurality of ventilation holes communicating with the gap in the sound insulating plate and the sound absorbing material, and exhausts through the ventilation holes and the gap. Is provided on the soundproof cover body.

(4) A side air injection unit that injects air laterally from the nozzle to the water removal object to be conveyed is supported in the upper unit cover.

(5) An upper air unit and a side air unit are supported in a box-shaped upper unit cover. The upper unit cover can be opened and closed on the main body housing, and the opening and closing fulcrum is used to open and close the soundproof cover. The fulcrum is mounted while being shifted in a direction perpendicular to the conveying direction of the conveyor.

The present invention has the following effects.
(1) Since the upper unit cover that supports the upper air injection unit (and the side air injection unit) is covered with a soundproof cover, air injection sounds from many nozzles and turbulent sound after injection are emitted outside the machine. Soundproof so that there is no. Further, since the soundproof cover can be opened and closed on the main body housing, maintenance or the like can be performed by opening the soundproof cover.

(2) Since the sound-absorbing material is interposed between the box body and the sound-insulating plate that covers the inner surface from the inside as the structure of the sound-proof cover, the sound-proof effect is good.

(3) Since the exhaust fan exhausts through the ventilation holes provided in the sound insulation plate and the sound absorbing material, and the gap between the sound absorbing material and the box body, the water vapor generated at the time of water removal does not remain inside the soundproof cover. Can be exhausted.

(4) Since the soundproof cover and the upper unit cover can be opened and closed in the same direction with respect to the conveyor, workability is good when the conveyor is opened and maintenance is performed.

  Next, an embodiment of the present invention will be described in detail with reference to the drawings.

  As shown in FIGS. 1 and 2, the dewatering machine is a perspective view of the overall appearance, FIG. 3 is a front view, and FIG. 4 is a plan view. In addition to installing the conveyor C, an upper unit cover D is mounted on the main body housing A so as to be opened and closed on the upper side of the mesh conveyor C, and a soundproof cover E covering the upper unit cover D from above is installed on the main body housing A. It can be opened and closed up and down.

  As shown in FIGS. 5 and 6, the lower air injection unit B is a flat rectangular lower air box 1 in which a large number of spin nozzles 2 are turned upward and individually swiveled. Between the upper part Ca and the lower part Cb of the main body housing A.

  The upper unit cover D has a box shape with an open lower surface facing the mesh conveyor C, and is hinged to the upper rear portion of the main body housing A by a hinge 4 so as to be freely opened and closed. As shown in FIG. 7, in the upper unit cover D, an elevating plate 5 is mounted so as to be movable up and down by a plurality of guide rods 3 suspended from the ceiling. The height of the elevating plate 5 can be adjusted by a height adjusting handle 5a provided outside the ceiling of the upper unit cover D. On the lower side of the lift plate 5, an upper air injection unit F is mounted, which is detachably mounted on the lower surface of the flat rectangular upper air box 6 with a large number of spin nozzles 7 facing downward. A side air injection unit G is suspended from the upper air injection unit F. The side air injection unit G separates a plurality of bottomed cylindrical bodies 9 mounted so as to be turnable with the spin nozzles 8 facing sideways away from each other in the conveying direction of the conveyor C, and further communicates the upper air box 6 with the interior thereof. It is suspended from the lower surface.

  As shown in FIG. 3, the lower air box 1 and the upper air box 6 are supplied with air from the two blowers 10 corresponding to each of the lower air box 1 and the upper air box 6. The spin nozzle 2 jets air upward from below while turning on the water removal target that has been transported on the conveyor C and entered the upper unit cover D, and the spin nozzles 7 of the upper air jet unit F are The air is ejected downward from above while turning to the water removal object conveyed on the conveyor C, and the plurality of spin nozzles 8 of the side air injection unit G are the water removal object conveyed on the conveyor C. Air is injected from the side while turning.

  The spin nozzle 2 of the lower air injection unit B, the spin nozzle 7 of the upper air injection unit F, and the spin nozzle 8 of the side air injection unit G have substantially the same structure, although the direction of air injection is different. Therefore, one of them will be described with reference to FIGS.

  Each spin nozzle includes a pipe nozzle 11 and a cap-shaped bearing block 12 that rotatably supports the pipe nozzle 11. As shown in FIG. 10, in the pipe nozzle 11, the intermediate portion 11b is gently curved in the X direction perpendicular to the axis with respect to the base end portion 11a, whereas the distal end portion 11c is in the intermediate portion 11b. Is gently curved in the Y direction perpendicular to the X direction, and the tip injection port 11d is oriented obliquely, so that it automatically turns with respect to the bearing block 12 by the air injection force from the injection port 11e. To do. The bearing block 12 has a male threaded nipple 12a.

  A male screw 11e is formed on the outer periphery of the base end portion 11a of the pipe nozzle 11, and as shown in FIG. 9, two first nuts 13 (one for locking) screwed into the male screw 11e and 1 The ball bearing 15 is fixed to the base end portion 11 a of the pipe nozzle 11 by sandwiching the ball bearing 15 from both sides with the second nuts 14. As shown in FIGS. 8 and 9, the ball bearing 15 is sandwiched between a step 12b formed on the inner peripheral surface of the bearing block 12 and a male screw nut 16 screwed into the female screw 12c on the inner peripheral surface. Thus, the ball bearing 15 is fixed in the bearing block 12. In order to increase the stability of the fixation, a disc spring 17 is interposed between the ball bearing 15 and the male screw nut 16 and tightened with the male screw nut 16. The disc spring 17 is positioned on the outer periphery of the second nut 14. The nut 14, the peripheral wall of the bearing block 12, the ball bearing 15, and the male screw nut 16 are surrounded.

  In order to reduce dust generation from the ball bearing 15 itself, a solid lubricating film made of fluorine resin or the like is formed on the raceway surfaces of the inner and outer races with the ball interposed therebetween, or grease is enclosed with the ball. As a result, it is possible to provide a ball bearing with low dust generation that has a significantly lower dust generation than a normal ball bearing. Since the ball bearing 15 is fixed to the bearing block 12 and the pipe nozzle 11 as described above, if the male screw nut 16 is loosened and removed from the bearing block 12, the ball bearing 15 and the pipe nozzle 11 are removed from the bearing block 12. The ball bearing 15 can be detached from the pipe nozzle 11 by loosening the nuts 13 and 14 and removing them from the pipe nozzle 11.

  Each of the spin nozzles configured as described above is attached to the nipple 12a of the bearing block 12 by screwing the nipple 12a into the screw holes provided in the air boxes 1, 2 or the bottomed cylindrical body 9.

  Curtains 18 and 19 are provided on both side walls of the upper unit cover D, that is, on the downstream side wall and the upstream side wall in the conveying direction of the conveyor C, in which a large number of plate pieces are swingably arranged. The object to be removed passes through the downstream curtain 18 and enters the upper unit cover D to be removed as described above, and then passes through the upstream curtain 19 and goes out of the upper unit cover D. A plurality of vent holes 20 are provided at a plurality of locations on the ceiling of the upper unit cover D.

  In addition, a water tray H is mounted on the main body housing A so that it can be inserted and removed from the front side below the conveyor C. As described above, it is removed by air injection from the top, bottom, and side. The water blown off from the water object falls on the water tray H and is collected.

  Since the inside of the main body housing A becomes a negative pressure due to air suction by the blower 10 installed therein, it is possible to prevent dust generated in the main body housing A from being discharged to the outside.

  The soundproof cover E has a box shape in which the lower surface of the stainless steel main body 21 is open so that the upper unit cover D can be covered with a sufficient margin as shown in FIGS. 5, 6, 11, and 12. The sound insulation plate 22 is attached to the inner surface (ceiling surface and peripheral surface) of the main body 21 with a plurality of ribs 23 at predetermined intervals, and the sound absorbing material 24 is attached to the outer surface of the sound insulation plate 22. Thus, a gap 25 is formed between the sound absorbing material 24 and the inner surface of the main body 21. The soundproof cover E is hinged at the rear end of the upper surface of the main body housing A by a hinge 26 so as to be freely opened and closed. The opening / closing fulcrum by the hinge 26 is located behind the opening / closing fulcrum by the hinge 4 of the upper unit cover D as shown in FIG. 6, and is shifted in a direction perpendicular to the conveying direction of the conveyor C. The cover D and the soundproof cover E can be opened and closed in the same direction with respect to the conveyor C.

  The sound insulating plate 22 and the sound absorbing material 24 of the soundproof cover E are provided with a plurality of air holes 25 a that communicate with the gap 25 at a plurality of locations on the ceiling of the main body 21. As shown in FIGS. 2 and 4, an exhaust fan 27 is provided at one place on the ceiling of the main body 21 of the soundproof cover E so that the space covered with the soundproof cover E can be exhausted through the ventilation holes 25 a while soundproofing. It has become. Therefore, since the vent hole 20 is provided also in the ceiling part of the upper unit cover D as described above, the space covered with the upper unit cover D can be exhausted.

  Curtains 28 and 29 similar to the curtains 18 and 19 of the upper unit cover D are provided on both side walls of the soundproof cover E, that is, on the downstream side wall and the upstream side wall in the conveying direction of the conveyor C. The water removal target conveyed by C also passes through these curtains 28 and 29.

  On the front walls of the soundproof cover E and the upper unit cover D, there is a transparent window Ea, so that the state of the water removal object that is removed by the air jet as described above while being transported by the mesh conveyor C can be seen from the outside. Da is provided.

  By the way, as shown in FIG. 13, the standing pouch 50, which is a packaging container containing a fluid substance such as liquid or powder, is self-supporting in a state where the bottom 50a that can be folded is expanded. For this reason, as shown in FIG. 14, when the paper conveyor C is transported while being laid down as it is, it is folded due to the fluidity of the contained contents. Therefore, the air from the spin nozzle 8 of the side air injection unit G cannot be injected to the bottom 50 a of the standing pouch 50, and the upper and lower surfaces (upper and lower surfaces) of the trunk of the standing pouch 50 are many of the upper air injection units F. Although the water can be sufficiently removed by the spin nozzle 7 and the plurality of spin nozzles 2 of the lower air injection unit B, the bottom 50a cannot be removed or the removal of water is insufficient.

  Therefore, in this dewatering machine, as shown in FIG. 7, a pressing unit J that presses the standing pouch 50 that is transported in a sideways state on the net conveyor C from the upper side is detachably attached to the upper air box 6. ing. 15 and 16 show the pressing unit J.

  The holding unit J rotates a plurality of (three in the figure) holding rollers 31 with bolts and nuts apart from the roller holder 30 which is a long plate in the conveyance direction of the mesh conveyor C in the conveyance direction of the mesh conveyor C. The roller holder 30 is mounted on a pair of L-shaped brackets 32 vertically attached to the lower surface of the upper air box 6 so that the height can be adjusted.

  Since the presser unit J configured in this way is provided at a position near the center of the mesh conveyor C with respect to the side air injection unit G and opposed thereto, FIG. 7 and FIG. 16 which is a partially enlarged view thereof. As shown, the trunk portion of the standing pouch 50 conveyed on the mesh conveyor C in a sideways state is pressed from above while the plurality of pressing rollers 31 rotate. Since the content in the standing pouch 50 is a fluid substance, the bottom 50a of the standing pouch 50 is expanded by the pressure of the fluid substance at the position facing the spin nozzle 8 of the side air ejection unit G and ejected from the spin nozzle 8. Since the air to be received is received by the entire bottom surface, the bottom portion 50a is sufficiently dewatered.

  Instead of the pressing roller 31, a hook-shaped or rod-shaped pressing member that is long in the conveyance direction of the mesh conveyor C may be used.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an overall perspective view of a water remover according to an embodiment of the present invention, with a soundproof cover opened. It is a perspective view same as the above of the state which opened the soundproof cover. It is also a front view. It is also a plan view. It is a side view similarly. FIG. It is a more detailed sectional view same as the above. It is a partially cutaway side view of a spin nozzle used in the present water remover. It is a partial enlarged view same as the above. It is an exploded view of a spin nozzle. It is a top view which shows the relationship between an upper unit cover and the soundproof cover which covers this. It is sectional drawing seen from the bottom of the soundproof cover. It is a perspective view of a standing pouch used as an example of a water removal target. It is sectional drawing similar to FIG. 7 in the case of not using the pressing unit which presses a standing pouch. It is a side view of a pressing unit. It is sectional drawing of the state which pressed the standing pouch by this using the pressing unit.

Explanation of symbols

A Main body housing B Lower air jet unit C Mesh conveyor D Upper unit cover Da Transparent window E Soundproof cover Ea Transparent window F Upper air jet unit G Side air jet unit H Water pan J Holding unit 1 Lower air box 2 Spin nozzle 3 Guide Rod 4 Hinge 5 Lifting plate 5a Height adjustment handle 6 Upper air box 7 Spin nozzle 8 Spin nozzle 9 Bottomed cylinder 10 Blower 11 Pipe nozzle 11a Base end portion 11b Intermediate portion 11c Front end portion 11d Injection port 11e Male screw 12 Bearing block 12a Nipple 12b Stepped portion 12c Female thread 13/14 Nut 15 Ball bearing 16 Male screw nut 17 Belleville spring 18/19 Curtain 20 Vent hole 21 Soundproof cover body 22 Sound insulation plate 23 Rib 24 Sound absorbing material 25 Gap 26 Hinge 25a Vent hole 27 Exhaust fan 28/29 Curtain 30 Roller holder 31 Holding roller 32 Bracket 50 Standing pouch 50a Bottom of standing pouch

Claims (1)

A conveyor installed on the upper part of the main body housing, an upper air injection unit that is arranged on the main body housing and injects air downward from a number of nozzles onto a water removal target conveyed on the conveyor, and on the lower side of the conveyor In the water remover, which is disposed in the main body housing and includes a lower air injection unit that injects air upward from a number of nozzles to the water removal object to be conveyed.
While supporting the upper air injection unit in a box-shaped upper unit cover that covers the conveyor from above,
A soundproof cover in which a sound absorbing material is interposed between a box-shaped main body that covers the upper unit cover and a sound insulation plate that covers the inner surface of the main body from the inside is mounted on the main body housing so as to be openable and closable.
A soundproof cover is formed between the inner surface of the soundproof cover main body and the sound absorbing material, and a plurality of ventilation holes communicating with the gap are provided in the sound insulating plate and the sound absorbing material. Provided in the body,
In addition, a side air injection unit that injects air laterally from the nozzle to the water removal object to be conveyed is supported in the upper unit cover,
Further, an upper air injection unit and a side air injection unit are supported in the box-shaped upper unit cover. The upper unit cover can be opened and closed on the main body housing, and the fulcrum of the opening and closing of the soundproof cover can be opened and closed. A dewatering machine characterized in that the dewatering machine is mounted so as to be shifted in a direction perpendicular to the conveying direction of the conveyor with respect to the fulcrum.

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