JP6587663B2 - Filtration apparatus and filtration method - Google Patents

Description

  The present invention relates to a filtration device and a filtration method for filtering liquid from a discharge port through which liquid containing foreign matter is discharged.

  In Japanese Patent Laid-Open No. 2006-263669 (Patent Document 1), a filtering member that filters liquid containing foreign matters such as dust, a main tank that stores the liquid filtered by the filtering member, and the remaining on the filtering member A filtration device is described that includes an ejection nozzle that sprays cleaning water or the like on foreign matter, and a sub tank that contains the sprayed cleaning water and foreign matter removed from the filtering member by the cleaning water.

  In the filtration device, since the filtration member is configured to endlessly rotate, the portion of the filtration member that is in contact with the liquid containing the foreign matter can be always in a state in which the foreign matter has been removed. A stable filtration state can be obtained.

JP 2006-263669 A

  By the way, since the cleaning liquid containing foreign substances contained in the sub tank is disposed as industrial waste, it is desirable that the amount of generated industrial waste is as small as possible from the viewpoint of environmental protection and disposal cost reduction. However, in the filtration device described in the above publication, the cleaning liquid is always sprayed to remove foreign matter, so that not only the amount of the cleaning liquid used is large, but also the cleaning liquid after cleaning as industrial waste is large. However, there is still room for improvement in terms of economy and environment. In this regard, a configuration in which the cleaning liquid after cleaning is again supplied to the spray nozzle, that is, a configuration in which the cleaning liquid is circulated and used, is conceivable. In order to prevent clogging of the spray nozzle due to foreign matter or the like, However, there is still room for improvement in terms of the simplicity of the apparatus. Further, since the filtration device described in the above-mentioned publication is configured to wash the filtration member by spraying the washing liquid, depending on how the washing liquid hits the foreign substance, the foreign substance may not be removed from the filtration member. End up. In addition, when the liquid itself filtered by the filtering member is a viscous liquid or the like, the filtering member is clogged in a state where the liquid itself remains attached to the filtering member, and the filtering performance is reduced. It is necessary to remove the liquid itself together with the foreign matter. However, in the configuration in which the cleaning liquid is sprayed, cleaning spots are generated, and it is difficult to reliably remove the liquid adhering to the filtration member. Thus, the filtration device described in the above-mentioned publication still has room for improvement in terms of detergency.

  The present invention has been made in view of the above, and an object of the present invention is to provide a filtration device and a filtration method that can improve economy and environmental performance while having a simple structure. It is another object of the present invention to provide a filtration device and a filtration method that can improve cleanability while having a simple structure.

  The filtration apparatus and the filtration method of the present invention employ the following means in order to achieve the above-described object.

According to the preferable form of the filtration apparatus which concerns on this invention, the filtration apparatus which filters the said liquid from the discharge outlet from which the liquid containing a foreign material is discharged is comprised. The said filtration apparatus is provided with the storage tank, the elongate filtration member, the washing tank, and the drive mechanism. The storage tank has an opening capable of receiving the liquid discharged from the discharge port, and is configured to be able to store the liquid flowing in through the opening. The filter member is configured to be interposed between the discharge port and the opening so as to remove foreign substances from the liquid discharged from the discharge port. The cleaning tank stores a cleaning medium for cleaning the filtering member after filtering the liquid. The drive mechanism drives the filtration member so that the filtered portion of the filtration member after filtering the liquid is directed to the washing tank, and the washed portion of the filtration member that has been washed by the washing tank has the discharge port and the opening. The filter member is driven so as to go between the two. In addition, the drive mechanism rotationally drives one of the cylindrical first, second, and third support members configured to wrap around and support the filtration member, and the first, second, and third support members. And an actuator. The first and second support members are in a positional relationship in which the axes of the first and second support members are parallel to each other at positions opposite to each other with respect to the discharge port, and are related to a straight line orthogonal to both the axes. When viewed from one side in the direction along the straight line, each axis is disposed so as to intersect with the flow line of the liquid discharged from the discharge port. The third support member is disposed so that the axis of the third support member is parallel to the respective axes of the first and second support members in the cleaning medium, and the third support member is disposed on the third support member in the cleaning medium. The filter member immediately before being wound around the third support member with respect to the virtual vertical plane passing through the axis of the third support member and extending in the direction in which the filter member extends after being wound is directed upward of the cleaning tank. It is comprised so that it may change in the direction which inclines to the arrange | positioned area | region side. The filtering member is configured as an endless member that is wound around the first, second, and third support members, and any one of the first, second, and third support members is rotationally driven. By being rotated, the filtered portion is directed to the cleaning tank, and the cleaned portion is configured to be between the discharge port and the opening.

According to the present invention, the filtered portion of the filtering member after the liquid has been filtered is moved to the cleaning tank and cleaned, and the cleaned portion of the filtering member that has been cleaned in the cleaning tank includes the discharge port and the storage tank. In other words, since the cleaned portion is always disposed between the discharge port and the opening of the storage tank, the filtration capacity of the filter member is reduced. Decline can be prevented. In addition, since the foreign matter adhering to the filter member is removed by the cleaning medium stored in the cleaning tank, the amount of the cleaning liquid used can be reduced compared to the conventional configuration in which the cleaning liquid is always sprayed to remove the foreign matter. And the amount of industrial waste generated can be reduced. Furthermore, since the filtered portion is cleaned by immersing it in a cleaning medium, cleaning spots are not generated, and the cleaning property can be improved. In addition, since the cleaning liquid in the cleaning tank is maintained in a static state, foreign substances and the like separated in the cleaning tank are not stirred in the cleaning liquid. Thereby, the removal efficiency of a foreign material can be improved. Further, the structure is simple because only the cleaning tank is provided. In addition, since the filtration member is configured as an endless member, and only includes three support members and an actuator that rotationally drives any one of them, the filtered portion of the filtration member is washed in the washing tank. Of the filter member, and the cleaned portion that is always cleaned between the discharge port and the opening of the storage tank. It is possible to easily realize a configuration for arranging the s. Furthermore, until just before the filter member is wound around the third support member, the surface of the filter member that contacts the liquid discharged from the discharge port (hereinafter referred to as the “contact surface of the filter member”) is generally the bottom surface of the cleaning tank. However, after being wound around the third support member, the filter member is moved in a state where the contact surface of the filter member faces substantially upward. In other words, the filter member is filtered in the cleaning medium. Since the upper and lower surfaces of the member are inverted, separation of the foreign matter from the filtering member is promoted by buoyancy after the filtering member has passed through the third support member. Thereby, it can prevent favorably that a foreign material is not separated from the said filtration member, and is again conveyed between the discharge port and the opening of a storage tank. As a result, it is possible to more reliably prevent a reduction in the filtration capacity of the filtration member.

  According to the further form of the filtration device according to the present invention in which the upper and lower surfaces of the filter member are inverted by the third support member, the drive mechanism wraps and supports the filter member immediately before being wound around the third support member. A cylindrical fourth support member is further provided. The fourth support member is disposed at a position below the third support member in the cleaning medium such that the axis of the fourth support member is parallel to the axis of the third support member. Here, “cylindrical” in the present invention is a concept including literally not only a cylinder but also a column.

  According to this embodiment, the foreign matter separated from the filtration member while the filtration member moves from the fourth support member to the third support member is arranged in the cleaning tank by the buoyancy acting on the foreign matter. It becomes easy to be conveyed to the done side. As a result, foreign matter can be collected in a fixed location in the cleaning tank, that is, the region on the side where the third support member is disposed, so that the work efficiency when removing the foreign matter from the cleaning tank is improved. Can do.

  According to the further form of the filtration apparatus which concerns on this invention, the removal member which removes the washing | cleaning medium adhering to the filtration member is further provided. And the said removal member is provided in the movement path | route of the filtration member until it goes to between a discharge port and opening after the filtration member is exposed outside a washing | cleaning medium.

  According to this embodiment, when the cleaned part of the filtering member cleaned in the cleaning tank is moved between the discharge port and the opening of the storage tank, the amount of the cleaning medium adhering to the cleaned part Can be reduced. Thereby, when filtering a liquid by the washing | cleaning part among filtration members, the quantity of the washing | cleaning medium accommodated in a storage tank with the filtered liquid can be reduced. As a result, it is possible to suppress the liquid in the storage tank from being diluted. In addition, if a liquid is a viscous fluid, it can suppress that a viscosity falls.

According to the further form of the filtration apparatus which concerns on this invention, the washing tank has a 1st and 2nd washing tank. The first and second cleaning tanks are arranged at positions opposite to each other with respect to the opening of the storage tank. The drive mechanism includes fifth and sixth support members, seventh and eighth support members, a first actuator, and a second actuator. The fifth and sixth support members are arranged in a cylindrical shape so as to be disposed above the first and second cleaning tanks and to wrap around and support the filtration member. The fifth and sixth support members have a positional relationship in which the axes of the fifth and sixth support members are parallel to each other, and one of the directions along the straight line with respect to a straight line orthogonal to both the axis lines. When viewed from the side, each axis is arranged so as to intersect with the flow line of the liquid discharged from the discharge port. The seventh and eighth support member is configured in a cylindrical shape so as to winding support filtering member in a wash medium. The seventh and eighth support member, each axis of the seventh and eighth support member is arranged so as to be parallel to the respective axes of the fifth and sixth support members in a wash medium. The first actuator is configured to be able to wind up the filtration member on the side wound around the seventh support member among the filtration members. The second actuator is configured to be able to wind up the filtration member on the side of the filtration member that is wound around the eighth support member. Further, by driving the first actuator, the filtered part moves toward the first cleaning tank, and the cleaned part cleaned by the second cleaning tank moves between the discharge port and the opening, and the second actuator is moved. By being driven, the filtered portion is directed to the second cleaning tank, and the cleaned portion that has been cleaned by the first cleaning tank is disposed between the discharge port and the opening.

  Here, “cylindrical” in the present invention is a concept including literally not only a cylinder but also a column. Further, “above the first and second cleaning tanks” in the present invention typically corresponds to directly above the openings of the first and second cleaning tanks. The concept is not limited to the position just above the openings of the first and second cleaning tanks as long as the position is higher than the height position where the openings are arranged.

  According to this form, since it is the structure which has two washing tanks, while performing the industrial waste process in one washing tank, a filtration member can be wash | cleaned by the other washing tank. That is, since the apparatus can be operated without stopping during the industrial waste treatment, the work efficiency can be improved.

According to a further embodiment of the filtration device according to the present invention, a seventh supporting member, during washing medium, the extending direction of the filter member after being wound on the said seventh supporting member, the first cleaning a direction toward the top of the tank, so as to change in a direction inclined to the seventh region side where the filter member is arranged just before wound around the seventh supporting member with respect to the imaginary vertical plane passing through the axis of the support member It is configured. Further, the eighth support member, in a washing medium, the extending direction of the filter member after being wound around the said eighth support member, a direction toward the upper of the second cleaning vessel, the second filtration member just before wound around the eighth support member is configured to change in a direction inclined to the arrangement region side with respect to the imaginary vertical plane passing through the axis of 8 supporting member.

According to this embodiment, since the upper and lower surfaces of the filter member are reversed in the cleaning medium in each cleaning tank, the foreign material is separated from the filter member after the filter member has passed through the seventh or eighth support member. Is promoted by buoyancy. Thereby, even in the configuration having two cleaning tanks, it is possible to satisfactorily prevent the foreign matter from being transported again between the discharge port and the opening of the storage tank without being separated from the filtering member. As a result, it is possible to more reliably prevent a reduction in the filtration capacity of the filtration member.

According to the further form of the filtration device according to the present invention, the drive mechanism further includes ninth and tenth support members that wrap around and support the filtration member immediately before being wound around the seventh and eighth support members. . Further, the ninth support member, at a position lower than the 7 supporting member during washing medium, the axis of the ninth supporting member is arranged so as to be parallel to the axis of the seventh supporting member. Then, the 10 support member, at a position lower than the eighth support member during washing medium, the axis of the 10 support member is arranged parallel to the axis of the eighth support member. Here, “cylindrical” in the present invention is a concept including literally not only a cylinder but also a column.

According to this embodiment, the foreign matter separated from the filtration member while the filtration member moves from the ninth or tenth support member to the seventh or eighth support member is caused by the buoyancy acting on the foreign matter, Among these, it becomes easy to be conveyed to the side where the seventh or eighth support member is disposed. As a result, foreign matter can be collected in a fixed place in each cleaning tank, that is, the region on the side where the seventh or eighth support member is disposed. Efficiency can be improved.

  According to the further form of the filtration apparatus which concerns on this invention, the liquid is comprised as an adhesive medium with which the water-insoluble additive was added to the water-soluble adhesive. The cleaning medium is water. Here, the “adhesive” in the present invention typically corresponds to a water-soluble phenol resin adhesive. In addition, as the “additive” in the present invention, typically, a bulking agent such as wheat flour or calcium carbonate or an effect accelerator corresponds to this.

  According to this embodiment, since the adhesive in the adhesive medium can be dissolved well with water as the cleaning medium, the adhesive and the foreign matter can be removed well from the filter member. In addition, since the additive in the adhesive medium is precipitated in the cleaning tank without being dissolved in water as the cleaning medium, each component and foreign matter of the adhesive medium can be separated in the cleaning tank. Thereby, each component and foreign material of these adhesive media can be processed individually. As a result, it is possible to reduce labor and cost for industrial waste treatment.

  According to the further form of the filtration apparatus which concerns on this invention, the collection | recovery container which collect | recovers the additive which does not melt | dissolve in water but precipitates in a washing tank is further provided.

  According to this embodiment, it is possible to more easily process the additive that precipitates in the cleaning medium.

  According to the further form of the filtration device according to the present invention having two cleaning tanks, the first and second recovery for recovering the additive that does not dissolve in water and precipitates in the first and second cleaning tanks. A container is further provided.

  According to this embodiment, it is possible to more easily process the additive that precipitates in each cleaning medium.

  According to a preferred embodiment of the adhesive medium coating apparatus according to the present invention, a conveyance conveyor that conveys a single plate, an adhesive medium application mechanism that applies an adhesive medium to the single plate, and an adhesive medium that is supplied to the adhesive medium application mechanism. An adhesive medium supply unit, and the filtration device according to the present invention according to any one of the above-described aspects for filtering the adhesive medium as a liquid containing foreign matter. The adhesive medium application mechanism has a discharge port that discharges the adhesive medium toward the filtration member of the filtration device. The filtration device is configured to filter and recover the adhesive medium discharged from the discharge port, and to circulate the recovered filtered adhesive medium to the adhesive medium supply unit.

  According to the present invention, since the filtration device of the present invention according to any one of the above-described aspects for filtering an adhesive medium as a liquid containing foreign matter is provided, the effect of the filtration device according to the present invention, for example, a simple structure is achieved. However, it is more economical than the conventional configuration in which cleaning liquid is always sprayed to remove foreign matter, and the amount of industrial waste generated can be suppressed. In addition, it is possible to achieve the same effects as the effect of improving the cleaning performance and the effect of improving the cleaning performance.

  According to the present invention, environmental performance and economic efficiency can be improved while having a simple structure. Further, according to the present invention, it is possible to improve the cleanability while having a simple structure.

It is a schematic block diagram which shows the outline of a structure of the adhesive agent coating apparatus 1 which concerns on embodiment of this invention. It is a schematic block diagram which shows the outline of a structure of the adhesive agent application mechanism 6. FIG. It is a perspective view which shows the outline of a structure of the filtration apparatus 20 which concerns on embodiment of this invention. It is a schematic diagram which shows the outline of a structure of the filtration apparatus 20 which concerns on embodiment of this invention. It is explanatory drawing which shows the external appearance of support roll 24a, 24b, 24c, 24d, 24e. It is explanatory drawing which shows the outline of a structure of the draining member. It is a schematic diagram which shows the outline of a structure of the filtration apparatus 120 of a modification. It is a schematic diagram which shows the outline of a structure of the filtration apparatus 220 of a modification. It is a schematic diagram which shows the outline of a structure of the filtration apparatus 320 of a modification. It is a schematic diagram which shows the outline of a structure of the filtration apparatus 420 of a modification. It is a schematic diagram which shows the outline of a structure of the filtration apparatus 520 of a modification. It is a schematic diagram which shows the outline of a structure of the filtration apparatus 620 of a modification. It is a schematic diagram which shows the outline of a structure of the filtration apparatus 720 of a modification. It is explanatory drawing which shows the external appearance of the support roll 824 of a modification. It is explanatory drawing which shows the outline of a structure of the draining member 830 of a modification. It is explanatory drawing which shows the external appearance of the filter member 826 of a modification. It is explanatory drawing which shows a mode that water-insoluble additives (a filler and effect promoters, such as wheat flour and calcium carbonate) are collect | recovered by the collection container 46 installed in the washing tank 36. FIG.

  Next, the best mode for carrying out the present invention will be described using examples.

  As shown in FIG. 1, an adhesive application device 1 according to an embodiment of the present invention includes an adhesive application mechanism 6 that applies an adhesive B to a wooden veneer 4 conveyed by a conveyance conveyor 2, and the adhesion. The adhesive supply nozzle 8 that supplies the adhesive B to the adhesive application mechanism 6 and the foreign matter 90 (see FIG. 3) including wood chips and wood chips are collected by filtering from the adhesive B supplied to the adhesive application mechanism 6. And a filtering device 20 according to an embodiment of the present invention. The adhesive application device 1 is configured to circulate the filtered adhesive B collected by the filtration device 20 to the adhesive supply nozzle 8. The adhesive application device 1 corresponds to the “adhesive medium application device” in the present invention, and the adhesive supply nozzle 8 is an example of an implementation configuration corresponding to the “adhesive medium supply unit” in the present invention.

  As shown in FIG. 2, the adhesive application mechanism 6 includes an application roll 12, a regulation roll 14, a sandwiching roll 16, and an adhesive discharge unit 18. The coating roll 12 and the regulation roll 14 are positioned so that the axes of the coating roll 12 and the regulation roll 14 are located above the virtual plane VP1 including the axes of the rollers 2a of the transport conveyor 2 (upward in FIG. 2). Has been placed. Further, the sandwiching roll 16 is disposed so that the axis of the sandwiching roll 16 is located below the virtual plane VP1 (downward in FIG. 2). The adhesive application mechanism 6 is an example of an implementation configuration corresponding to the “adhesive medium application mechanism” in the present invention.

  The coating roll 12 is configured to be able to hold the adhesive B that adheres to the outer peripheral surface. As shown in FIG. 2, the regulation roll 14 is disposed adjacent to the application roll 12 so that the virtual plane VP2 including the axis of the regulation roll 14 and the axis of the application roll 12 is parallel to the virtual plane VP1. Has been. The adhesive supply nozzle 8 is disposed at a position corresponding to a position immediately above the portion where the coating roll 12 and the regulation roll 14 are closest to each other, and at a substantially central position in the axial direction of the coating roll 12 and the regulation roll 14. The adhesive reservoir 60 is configured by the application roll 12 and the regulation roll 14 (see FIGS. 1 and 2).

  The coating roll 12 and the regulation roll 14 are rotated in the reverse direction in the direction in which the adhesive B stored in the adhesive reservoir 60 is wound between the coating roll 12 and the regulation roll 14. 2 and the regulation roll 14 is rotated counterclockwise in FIG. Thus, the adhesive B wound between the application roll 12 and the regulation roll 14 with the rotation of the application roll 12 and the regulation roll 14 adheres to the outer peripheral surface of the application roll 12 and rotates together with the application roll 12. . In addition, the adhesion amount of the adhesive B to the outer peripheral surface of the application roll 12 can be adjusted by changing the distance (gap) between the application roll 12 and the regulation roll 14.

  Further, as shown in FIG. 2, the sandwiching roll 16 is adjacent to the coating roll 12 so that the virtual plane VP3 including the axis of the sandwiching roll 16 and the axis of the coating roll 12 is orthogonal to the virtual plane VP1. Has been placed. The sandwiching roll 16 is disposed so that the surface facing the application roll 12 is in contact with the common virtual tangent line VTL of each roller 2a of the transport conveyor 2. In other words, the sandwiching roll 16 has a surface facing the application roll 12 of the sandwiching roll 16 at the same height as the upper surface of each roller 2a of the transport conveyor 2, that is, the surface transporting the veneer 4. It is arranged (to be flush).

  In addition, a gap is provided between the coating roll 12 and the sandwiching roll 16 so as to sandwich the single plate 4. The sandwiching roll 16 is rotated in a direction opposite to the rotation direction of the coating roll 12, that is, counterclockwise in FIG. The single plate 4 conveyed to the adhesive application mechanism 6 by each roller 2a of the conveyor 2 is sandwiched between the application roll 12 and the sandwiching roll 16 by the rotation of the application roll 12 and the sandwiching roll 16, and then further It is conveyed toward the downstream side (left side in FIG. 2). Here, when the single plate 4 passes between the application roll 12 and the sandwiching roll 16, the adhesive B attached to the application roll 12 is applied to the upper surface of the single plate 4 (the surface facing upward in FIG. 2) ( (See FIG. 1).

  The adhesive discharge part 18 is arrange | positioned at the one end side of the axial direction of the application roll 12 and the control roll 14 as shown in FIG. As shown in FIG. 2, the adhesive discharge portion 18 has a discharge opening 18a having one end opened to the adhesive storage portion 60 and the other end opened downward (lower side in FIG. 2). It is comprised as a pipe member of a letter shape (refer FIG. 1), and discharges the adhesive agent B stored by the adhesive storage part 60 toward the downward direction (lower side of FIG. 2). In the present embodiment, the discharge of the adhesive B from the adhesive discharge unit 18 is performed by the self-weight of the adhesive B in the adhesive storage unit 60 or the adhesion from the adhesive supply nozzle 8 to the adhesive storage unit 60. The composition was naturally generated by the flow action of the adhesive B resulting from the extrusion effect caused by the addition of the agent B.

  Here, in the present embodiment, the adhesive B has a configuration in which a water-soluble phenol resin adhesive is mixed with a water-insoluble additive and water that can be expected to adjust viscosity or increase in viscosity. In addition, as a water-insoluble additive, it was set as the structure which uses the flour and calcium carbonate which can anticipate the effect as a bulking agent or a hardening accelerator.

  As shown in FIG. 3 or 4, the filtration device 20 according to the embodiment of the present invention includes a storage tank 22 and a plurality of support rolls 24 a, 24 b, 24 c, 24 d, arranged around the storage tank 22. 24e, a filter member 26 wound around the plurality of support rolls 24a, 24b, 24c, 24d, 24e, a drive motor 28 (see FIG. 3) for driving the support roll 24a, a draining member 30, and a storage tank A circulation pipe 32 connected to the circulation pipe 32, a circulation pump 34 (see FIG. 3) connected to the circulation pipe 32, and a cleaning tank 36 disposed immediately below the storage tank 22. The support rolls 24a, 24b, 24c, 24d, 24e and the drive motor 28 are an example of an implementation configuration corresponding to the “drive mechanism” in the present invention.

  As shown in FIG. 4, the storage tank 22 has an opening 22a on the top surface and a take-out pipe 22b integrated on the bottom surface. As shown in FIGS. 18 is disposed immediately below the discharge opening 18a provided at the other end. In addition, the storage tank 22 is installed so that it may be in a positional relationship such that the discharge opening 18a is disposed substantially at the center of the opening 22a when the opening 22a is viewed from above (see FIG. 3).

  As shown in FIG. 5, the plurality of support rolls 24a, 24b, 24c, 24d, and 24e are cylindrical members having flanges 25 and 25 that protrude radially at both ends in the axial direction (left and right direction in FIG. 5). The support rolls 24a, 24b, 24c, 24d, and 24e are arranged so that the axes thereof are parallel to each other (see FIG. 3). The flange portions 25 and 25 prevent the filter member 26 wound around the support rolls 24a, 24b, 24c, 24d, and 24e from being meandered and falling off the support rolls 24a, 24b, 24c, 24d, and 24e. .

  Among the plurality of support rolls 24a, 24b, 24c, 24d, 24e, the support rolls 24a, 24b are arranged in the longitudinal direction of the opening 22a (see FIG. 4) so as to sandwich the opening 22a of the storage tank 22, as shown in FIG. It is arrange | positioned at the both ends of the (left-right direction). In other words, the support rolls 24 a and 24 b are arranged in different directions (opposite sides) with respect to the discharge opening 18 a of the adhesive discharge portion 18. Further, the support rolls 24 a and 24 b are installed so that the upper surfaces of the support rolls 24 a and 24 b are located above the opening 22 a of the storage tank 22.

  As a result, the filter member 26 wound around the support rolls 24a and 24b is placed between the discharge opening 18a of the adhesive discharge portion 18 and the opening 22a of the storage tank 22 as shown in FIGS. It extends along the longitudinal direction of the opening 22a (the left-right direction in FIG. 4). In other words, the filter member 26 wound around the support rolls 24a and 24b extends in a direction crossing the adhesive B discharged from the discharge opening 18a. The support rolls 24a and 24b are an example of an implementation configuration corresponding to the “first support member” and the “second support member” in the present invention.

  As shown in FIG. 4, the support roll 24 c is disposed immediately below the support roll 24 b and slightly above the cleaning tank 36. The support rolls 24d and 24e are installed in the cleaning tank 36 at positions where the cleaning water RW is immersed when the cleaning water RW is stored in the cleaning tank 36. Moreover, the support roll 24e is arrange | positioned directly under the support roll 24a, and the support roll 24d is arrange | positioned in the position close | similar to the support roll 24e side with respect to the direct under of the support roll 24c. In addition, the support rolls 24d and 24e are installed so that it may become the same height position. The support roll 24d corresponds to the “fourth support member” in the present invention, and the support roll 24e is an example of an implementation configuration corresponding to the “third support member” in the present invention.

  As shown in FIG. 3, the filtering member 26 is configured as an endless wire mesh. The width dimension of the filter member 26 is set to be the same as or slightly smaller than the dimension between the flange portions 25, 25 provided at both ends in the axial direction of the support rolls 24a, 24b, 24c, 24d, 24e.

  The drive motor 28 is connected to the support roll 24a via a gear box such as a speed reducer (not shown), and is configured to rotationally drive the support roll 24a. When the support roll 24a is rotated by the drive motor 28, the endless filtration member 26 wound around the support rolls 24a, 24b, 24c, 24d, and 24e is rotated. Specifically, when the drive motor 28 rotates the support roll 24a counterclockwise in FIG. 4, the filter member 26 is rotated counterclockwise in FIG. 4 (open arrow in FIG. 4). The drive motor 28 is an example of an implementation configuration corresponding to the “drive mechanism” and “actuator” in the present invention.

  As shown in FIG. 6, the draining member 30 includes a plate-like wiping member 30a made of a brush or a rubber plate, and a draining roll 30b provided at a position facing the wiping member 30a. The filter member 26 is sandwiched between the tip of the member 30a and the draining roll 30b. The draining member 30 is an example of the implementation structure corresponding to the "removal member" in this invention.

  As shown in FIGS. 3 and 4, the draining member 30 is disposed between the support roll 24a and the support roll 24e. In addition, the draining roll 30b is arrange | positioned so that the axial direction may become parallel to each axial direction of support roll 24a, 24b, 24c, 24d, 24e.

  As shown in FIG. 4, the circulation pipe 32 has one end connected to the take-out pipe 22 b of the storage tank 22 and the other end connected to the adhesive supply nozzle 8 as shown in FIG. 1. By driving the circulation pump 34, the adhesive in the storage tank 22 is supplied to the adhesive supply nozzle 8 through the take-out pipe 22 b and the circulation pipe 32.

  As shown in FIG. 3, the cleaning tank 36 is configured as a substantially rectangular parallelepiped tank having an open upper surface and configured to store the cleaning water RW therein. The dimension of the cleaning tank 36 in the longitudinal direction (left-right direction in FIG. 4) is set larger than the dimension between the support roll 24a and the support roll 24b (or the dimension between the support roll 24c and the support roll 24e). The rolls 24a and 24e are installed in a state in which they are largely projected. In other words, the support rolls 24a, 24b, 24c, 24d, and 24e around which the storage tank 22 and the filtration member 26 are wound are arranged so as to be biased to the left side (the left side in FIGS. 3 and 4) of the cleaning tank 36. The cleaning water RW is an example of an implementation configuration corresponding to the “cleaning medium” in the present invention.

  Accordingly, as shown in FIGS. 3 and 4, the cleaning tank 36 is bonded to the cleaning region 36 a which is a region where the support rolls 24 d and 24 e are installed (the filter member 26 is immersed in the cleaning water RW). An accumulation region 36b, which is a region where foreign matter 90 such as wood chips and wood chips attached to the filtering member 26 is accumulated together with the agent B, is configured.

  In this embodiment, since a water-soluble phenol resin adhesive is used as the adhesive B, it is not necessary to use a special chemical as the cleaning liquid stored in the cleaning tank 36. RW) is stored. Thereby, not only the increase in cost can be suppressed, but also workability and environmental performance can be improved. The adhesive B is an example of an implementation configuration corresponding to “liquid” and “adhesive medium” in the present invention.

  Next, the operation of the thus configured filtration device 20, particularly the operation when the adhesive B is filtered by the filtration member 26 will be described. When the operation of the adhesive application device 1 is started, as shown in FIG. 1, the veneer 4 is conveyed by the conveyance conveyor 2, and the adhesive reservoir 60 of the adhesive application mechanism 6 from the adhesive supply nozzle 8. Adhesive B is supplied to The adhesive B supplied to the adhesive reservoir 60 adheres to the outer peripheral surface of the application roll 12 and rotates together with the application roll 12. Then, when the veneer 4 conveyed by the conveyor 2 passes between the application roll 12 and the sandwiching roll 16, the adhesive B attached to the outer peripheral surface of the application roll 12 is the entire upper surface of the veneer 4. To be applied.

  Here, when the adhesive B is applied to the upper surface of the veneer 4 by the application roll 12, a piece of wood or wood chips placed on the upper surface of the veneer 4, or a piece of wood such as a node peeled off from the veneer 4, Foreign matter 90 containing wood chips adheres to the application roll 12 and mixes in the adhesive reservoir 60 as the application roll 12 rotates. The foreign matter 90 mixed in the adhesive reservoir 60 has a push-out effect due to the dead weight of the adhesive B in the adhesive reservoir 60 or the injection of the adhesive B from the adhesive supply nozzle 8 to the adhesive reservoir 60. Due to the flow action of the adhesive B and the like, the adhesive B flows into the adhesive discharge portion 18 together with the adhesive B, and is discharged from the discharge opening 18a.

  As shown in FIG. 3, the adhesive B including the foreign matter 90 discharged from the discharge opening 18a is filtered by the filter member 26 and then stored in the storage tank 22 through the opening 22a (see FIG. 4). At this time, the foreign material 90 including a piece of wood or wood chips adheres to the filter member 26 by filtering the adhesive B. Here, since the filtration member 26 is rotated in accordance with the rotational drive of the support roll 24a by the drive motor 28, the filtration member 26 after the adhesive B is filtered together with the foreign matter 90 attached to the filtration member 26, It is sent to the cleaning tank 36 via the support rolls 24b, 24c, 24d.

  As shown in FIG. 4, the filtering member 26 sent to the cleaning tank 36 via the support rolls 24b, 24c, and 24d moves in the cleaning water RW from the support roll 24d to the support roll 24e, and the cleaning is performed. While moving in the water RW, the water is washed with the washing water RW. Specifically, the adhesive B mainly composed of a phenol resin adhering to the filter member 26 is dissolved in the washing water RW, and foreign matters such as wood chips and wood chips adhering to the filter member 26 due to the viscosity of the adhesive B 90 is peeled off from the filter member 26.

  Here, the foreign matter 90 such as a piece of wood or wood chips peeled off from the filtering member 26 has a specific gravity smaller than that of the cleaning water RW, and therefore tends to float on the surface of the cleaning water RW by buoyancy. However, the support roll 24d arranged horizontally is used. , 24e is blocked by the filter member 26 extending between them. Thereby, the foreign matter 90 such as a piece of wood or wood chips moves horizontally between the support rolls 24d and 24e in the cleaning water RW together with the filter member 26 from the support roll 24d side to the support roll 24e side.

  As shown in FIG. 4, after the filter member 26 is wound around the support roll 24 e, the filter member 26 is turned upward (upward in FIG. 4) toward the support roll 24 a to the cleaning water RW of the filter member 26. The soaking is released. Thereby, the foreign material 90 such as a piece of wood or wood chips carried to the support roll 24 e by the filtration member 26 is released from the filtration member 26 and accumulated in the accumulation region 36 b of the cleaning tank 36.

  In addition, while the filtering member 26 moves horizontally in the washing water RW from the support roll 24d to the support roll 24e, the non-water-soluble and high specific gravity additive 92 (one flour is added to the adhesive B). As shown in FIG. 4, the portion and the calcium carbonate are not dissolved in the washing water RW and are deposited at the bottom of the washing tank 36.

  The filtering member 26 cleaned by moving in the cleaning water RW in this way again passes between the discharge opening 18a of the adhesive discharge unit 18 and the opening 22a of the storage tank 22 via the support roll 24a (hereinafter, “ Moved to a “filtration position”). In addition, the filtration member 26 which moves to the support roll 24a from the support roll 24e after being immersed in the cleaning water RW is drained by the draining member 30 installed between the support roll 24e and the support roll 24a. Therefore, when the filtration member 26 moves to the filtration position again to filter the adhesive B, the cleaning water RW is mixed into the filtered adhesive B (adhesive B in the storage tank 22) and the adhesive B It can suppress well that a density | concentration is diluted.

 On the other hand, the adhesive B stored in the storage tank 22 is fed to the adhesive supply nozzle 8 through the circulation pipe 32 from the take-out pipe 22b provided at the bottom of the storage tank 22 as the circulation pump 34 is driven. The adhesive is again supplied to the adhesive application mechanism 6 by the adhesive supply nozzle 8b.

  According to the filtration device 20 according to the embodiment of the present invention described above, since the filtration member 26 in a constantly cleaned state is disposed at the filtration position, the filtration capability of the filtration member 26 is reduced. Can be prevented. In addition, since the foreign matter 90 attached to the filter member 26 is removed by the cleaning water RW stored in the cleaning tank 36, the cleaning water RW is compared with the conventional configuration in which the cleaning water RW is always sprayed to remove the foreign matter 90. In addition to being economical, it is possible to reduce the amount of industrial waste generated and contribute to the improvement of environmental performance. Furthermore, since the filter member 26 after the adhesive B is filtered is immersed in the cleaning water RW for cleaning, there is no cleaning spot as compared with the conventional configuration in which the cleaning water RW is sprayed. It is possible to improve the performance. The structure is simple because only the cleaning tank 36 is provided.

  In the adhesive application device 1 including the filtration device 20 according to the embodiment of the present invention, a water-soluble phenol resin adhesive and a water-insoluble additive (a bulking agent such as flour or calcium carbonate or an effect promoter). ) And the adhesive B containing water, the filter member 26 to which the adhesive B including the foreign matter 90 such as wood chips and wood chips is attached is only immersed in the cleaning water RW in the cleaning tank 36. Thus, in the cleaning tank 36, it can be separated into a water-soluble phenol resin adhesive, a water-insoluble additive, and a foreign matter 90 such as a piece of wood or wood waste. Thereby, each of these water-soluble phenol resin adhesives, water-insoluble additives, and foreign materials 90 such as wood chips and wood chips can be individually treated. As a result, it is possible to reduce labor and cost for industrial waste treatment. Here, since the cleaning water RW in the cleaning tank 36 is maintained in a static state, the foreign matter 90 and the like separated in the cleaning tank 36 are not stirred in the cleaning water RW. The removal efficiency can be improved.

  In the present embodiment, the filter member 26 is wound around and supported by the five support rolls 24a, 24b, 24c, 24d, and 24e. However, the present invention is not limited to this. For example, as shown in the filtration devices 120 and 220 of the modified example illustrated in FIG. 7 and FIG. 8, a configuration in which the filtration member 26 is wound and supported by three support rolls 24a, 24b, and 24d, and four support rolls 24a, A configuration in which the filtering member 26 is wound and supported by 24b, 24d, and 24e, or a configuration in which the filtering member 26 is wound and supported by six or more support rolls, although not shown, may be employed. In this case, regardless of the number of support rolls installed, at least one support roll is located in the cleaning tank 36 and is immersed in the cleaning water RW when the cleaning water RW is stored in the cleaning tank 36. It is necessary to set it as the structure which the filtration member 26 moves in the washing water RW.

  In addition, in the filtration device 120 of the modification, the configuration in which the support rolls 24c and 24d are abolished with respect to the filtration device 20 according to the present embodiment, and the support roll 24e is disposed immediately below the take-out pipe 22b of the storage tank 22, That is, the support rolls 24a, 24b, 24e are arranged in a substantially inverted triangular shape when viewed from one side in the direction along the axial direction of the support rolls 24a, 24b, 24e. Moreover, in the filter apparatus 220 of a modification, the support roll 24c is abolished with respect to the filter apparatus 20 which concerns on this Embodiment, and the structure which arrange | positions the support roll 24d directly under the support roll 24b, ie, support roll 24a, When viewed from one side in the direction along the axial direction of 24b, 24d, and 24e, the support rolls 24a, 24b, 24d, and 24e are arranged in a square shape.

  In the present embodiment, when the cleaning water RW is stored in the cleaning tank 36 in the cleaning tank 36, the support rolls 24d and 24e installed at the positions immersed in the cleaning water RW have the same height. The filter member 26 extending between the support rolls 24d and 24e is horizontal, so that the support roll 24e is positioned as shown in the filter device 320 of the modified example illustrated in FIG. The filter member 26 installed above the support roll 24d and extending between the support rolls 24d and 24e is directed in the direction of rotation (counterclockwise in FIG. 9) (from the support roll 24d to the support roll 24e). A configuration having an upward slope may be used.

  According to this configuration, the foreign material 90 such as a piece of wood or wood chips that peels off from the filtration member 26 while the filtration member 26 moves in the washing water RW and moves with the filtration member 26 between the support rolls 24d and 24e, Both the buoyancy acting on the foreign material 90 and the inclination of the filtering member 26 between the support rolls 24d and 24e promote the movement of the foreign material 90 in the direction of the accumulation region 36b. As a result, the foreign matter 90 can be reliably accumulated in the accumulation region 36b.

  In the present embodiment, the support roll 24e is arranged immediately below the support roll 24a, that is, the filtration member 26 wound around the support roll 24e moves in the cleaning water RW from the horizontal direction to the vertical upward direction. However, the present invention is not limited to this. For example, as shown in the filter device 420 of the modified example illustrated in FIG. 10, the support roll 24e is arranged below the support roll 24a and moved to the accumulation region 36b side with respect to the support roll 24a. The direction in which the filtration member 26 after being wound around 24e is inclined in the vertical direction in the washing water RW, specifically, the filtration member 26 after being wound around the support roll 24e is in the washing water RW. The moving direction (extending direction) is changed in a direction that faces upward and inclines toward the side (cleaning region 36a side) on which the support roll 24a is disposed with respect to the virtual vertical plane VVP passing through the axis of the support roll 24e. It is good also as a structure.

  According to this configuration, the upper and lower surfaces of the filtration member 26 are reversed in the cleaning water RW, specifically, the contact surface (discharge opening) while the filtration member 26 moves from the support roll 24d toward the support roll 24e. When the filter member 26 moves toward the support roll 24a after being wound around the support roll 24e, the contact surface (from the discharge opening 18a) is faced downward. The surface of the adhesive B in contact with the adhesive B is generally directed upward, so that the separation of the foreign matter 90 such as wood chips and wood chips from the filter member 26 is promoted, and the foreign matter 90 is reliably accumulated in the accumulation region 36b. Can do.

  In the case of this configuration, as shown in FIG. 10, a partition that partitions the boundary between the filtration member 26 and the accumulation region 36b at a portion where the filtration member 26 wound around the support roll 24e comes out of the cleaning water RW. It is desirable that the plate 70 be installed. As a result, foreign matter 90 such as wood pieces and wood chips that have been peeled off from the filtration member 26 and accumulated in the accumulation region 36b again adheres to the filtration member 26 and is filtered (the discharge opening 18a of the adhesive discharge unit 18 and the storage tank 22). It can be well prevented from being carried to the opening 22a).

  Moreover, as a structure which inverts the upper and lower surfaces of the filter member 26 in the washing water RW, it is not restricted to the structure of the filter apparatus 420 of a modified example, For example, the filter apparatus 520,620 of the modified example illustrated to FIG. 11 and FIG. It is good also as what applies the structure of.

  As shown in FIG. 11, the filtering device 520 has the same configuration as the filtering device 420 except that a support roll 524 f is added to the filtering device 420. In the filtering device 520, the support roll 524f is installed between the support roll 24a and the support roll 24e and directly below the support roll 24a. As a result, the filtration member 26 after being wound around the support roll 24e can be tilted to a more horizontal position, so that the foreign matter 90 is detached from the filtration member 26 due to buoyancy acting on the foreign matter 90 such as a piece of wood or wood chips. Can be promoted more. The support roll 524f has the same configuration as the other support rolls 24a, 24b, 24c, 24d, and 24e. In other words, the support roll 524f is configured as a cylindrical member having flanges 25 and 25 projecting in the radial direction at both ends in the axial direction, and the axis is the other support rolls 24a, 24b, 24c, 24d, and 24e. It arrange | positions so that it may become parallel to each axis.

  Further, as shown in FIG. 12, the filtering device 620 has substantially the same configuration as the filtering device 420 except that the supporting rolls 24 c and 24 d are abolished with respect to the filtering device 420. According to the said structure, there can exist an effect that the foreign material 90 can be reliably integrated | stacked on the integration | stacking area | region 36b, suppressing the number of support rolls 24a, 24b, 24e to the minimum. Needless to say, it is possible to prevent the filtration capacity of the filter member 26 from being lowered, improve the economy and the environment, and improve the cleaning performance.

  In the present embodiment and the above-described modification, the support member 24a, 24b is configured such that the filtering member 26 is configured in an endless shape and a part thereof is moved while being immersed in the cleaning water RW in the cleaning tank 36. 24c, 24d, 24e, and 524f, and the filter member 26 is rotationally moved by the drive motor 28. However, the filter member 26 after filtering the adhesive B containing foreign matter 90 such as wood chips and wood chips is used. Any configuration may be used as long as it is cleaned by the cleaning water RW stored in the cleaning tank 36 and the filtered filter member 26 is moved to the filtration position again.

  For example, as shown in a filtering device 720 of a modified example illustrated in FIG. 13, the filtering member 726 is formed in a long band shape, and one end side of the filtering member 726 is wound around and supported by support rolls 724a, 724b, 724c, and 724d. At the same time, the support rolls 724b and 724c are arranged so as to be immersed in the cleaning water RW in the first cleaning tank 736a, while the other end side of the filter member 726 is wound around the support rolls 725a, 725b, 725c, and 725d. The support rolls 725b and 725c are arranged so as to be hung and supported in the cleaning water RW in the second cleaning tank 736b, and one end and the other end of the filter member 726 are driven by the first and second drive motors 728a and 728b. The filter member 726 after filtering the adhesive B containing the foreign matter 90 such as a piece of wood or wood chips is washed into the washing water RW by alternately winding up the parts. With Wash I, a filter member 726 after washing may be configured to be moved again to the filtration position. The support rolls 724a, 724b, 724c, 724d, 725a, 725b, 725c, 725d, and the first and second drive motors 728a, 728b are an example of an implementation configuration corresponding to the “drive mechanism” in the present invention.

  As shown in FIG. 13, the support rolls 724a and 725a and the support rolls 724d and 725d are arranged at both ends in the longitudinal direction of the opening 22a (left and right direction in FIG. 13) so as to sandwich the opening 22a of the storage tank 22. Yes. The support rolls 724 a and 725 a are installed so that the upper surfaces of the support rolls 724 a and 725 a are positioned above the opening 22 a of the storage tank 22.

Thereby, the filter member 726 wound around the support rolls 724a and 725a is disposed between the discharge opening 18a of the adhesive discharge portion 18 and the opening 22a of the storage tank 22 in the longitudinal direction of the opening 22a (left and right in FIG. 13). Direction). In other words, the filtering member 726 wound around the support rolls 724a and 725a extends in a direction crossing the adhesive B discharged from the discharge opening 18a. The support rolls 724a and 725a are examples of implementation configurations corresponding to the “ fifth support member” and the “ sixth support member”, respectively, in the present invention.

  On the other hand, as shown in FIG. 13, the support rolls 724d and 725d are closer to the storage tank 22 than the support rolls 724a and 725a, and the axis of the support rolls 724d and 725d is more than the axis of the support rolls 724a and 725a. It is installed in a low position. More specifically, the support rolls 724d and 725d are installed such that the upper surfaces of the support rolls 724d and 725d are positioned below the opening 22a of the storage tank 22 (downward position in FIG. 13).

As shown in FIG. 13, the support rolls 724b and 724c and the support rolls 725b and 725c are respectively in the first cleaning tank 736a and the second cleaning tank 736b, and the first cleaning tank 736a and the second cleaning tank 736b. When the cleaning water RW is stored in the tank, it is installed at a position where it is immersed in the cleaning water RW. The support rolls 724b and 725b are installed closer to the storage tank 22 than the support rolls 724a and 725a, and the support rolls 724c and 725c are installed closer to the storage tank 22 than the support rolls 724d and 725d. Yes. The support rolls 724b and 724c and the support rolls 725b and 725c are installed so as to be at the same height position. The support rolls 724b and 725b correspond to the “ ninth support member” and the “ tenth support member” in the present invention, respectively. The support rolls 72 4c and 725c correspond to the “ seventh support member” and the “ eighth ” in the present invention, respectively. It is an example of the implementation structure corresponding to a "support member."

Thus, as shown in FIG. 13, between the filter member 726, after being wound around the support roll 72 4a, 72 5a, the supporting roller 724b from the support roll 72 4a, 72 5a, moves towards 725b is The contact surface (the surface to which the adhesive B from the discharge opening 18a comes into contact) is moved in an inclined state so as to face substantially downward (the bottom surfaces of the first and second cleaning tanks 736a and 736b). Then, the filtration member 726, after being wound around the support roll 72 4b, 72 5b, the support roll 724b, the support rolls 724c from 725b, as between moving towards the 725c, from the contact surface (ejection opening 18a When the adhesive B is moved horizontally toward the support rolls 724c and 725c and moved toward the support rolls 724d and 725d after moving horizontally with the downward direction (vertically below) facing the adhesive B). Is a support roll 724d with respect to the virtual vertical planes VVP1 and VVP2 passing through the axes of the support rolls 724c and 725c, so that the contact surface (the surface to which the adhesive B from the discharge opening 18a comes into contact) is generally directed upward. , 725d (inclined toward the cleaning regions 737a and 738a described later). That is, after being wound around the support rolls 724c and 725c, the upper and lower surfaces of the filter member 726 are reversed in the cleaning water RW.

  Note that a first drive motor 728a and a second drive motor 728b are connected to the support rolls 724d and 725d via gearboxes such as speed reducers, respectively. By driving the first drive motor 728a and the second drive motor 728b, the support rolls 724d and 725d are rotationally driven, whereby the filter member 726 is wound around the support rolls 724d and 725d and the filter member 726 is supported. Feeding from the rolls 724d and 725d is performed. That is, the filter member 726 after the adhesive B is filtered by alternately winding and sending out the filter member 726 by the first drive motor 728a and the second drive motor 728b is used for the first cleaning tank 736a or the second drive motor 728b. The filter member 726 that has been already cleaned in the second cleaning tank 736b or the first cleaning tank 736a can be moved to the filtering position while being sent to the second cleaning tank 736b and cleaned with the cleaning water RW. The first drive motor 728a and the second drive motor 728b are examples of implementation configurations corresponding to the “first actuator” and the “second actuator” in the present invention, respectively.

  Further, the support rolls 724a, 724b, 724c, 724d, 725a, 725b, 725c, and 725d support the filtering device 20 of the present embodiment and the filtering devices 120, 220, 320, 420, 520, and 620 of the above-described modifications. The rolls 24a, 24b, 24c, 24d, 24e, and 524f have the same configuration. That is, the support rolls 724a, 724b, 724c, 724d, 725a, 725b, 725c, and 725d are configured as cylindrical members having flange portions 25 and 25 projecting radially at both ends in the axial direction. The axes 724a, 724b, 724c, 724d, 725a, 725b, 725c, and 725d are arranged so as to be parallel to each other.

  As shown in FIG. 13, the first and second cleaning tanks 736 a and 736 b are configured in a substantially rectangular parallelepiped shape with an upper surface opened, and are arranged so as to sandwich the storage tank 22. That is, it is installed so that the openings are arranged immediately below the support rolls 724a and 725a and the support rolls 724d and 725d. In addition, as shown in FIG. 13, in the inner areas of the first and second cleaning tanks 736a and 736b, the storage tank is related to the filter member 726 extending between the support rolls 724c and 725c and the support rolls 724d and 725d. The region opposite to the 22 side is configured as cleaning regions 737a and 738a. Among the regions inside the first and second cleaning tanks 736a and 736b, the support rolls 724c and 725c and the support rolls 724d and 725d The region on the side of the storage tank 22 with respect to the filtering member 726 extending therebetween is configured as an accumulation region 737b, 738b.

  According to the filter device 720 of the modified example configured in this way, the same effects as the filter device 20 according to the present embodiment and the filter devices 120, 220, 320, 420, 520, 620 of the modified example described above, for example, filtration The effect that the reduction of the filtration capacity of the member 726 can be prevented, and the use amount of the cleaning water RW can be reduced as compared with the conventional configuration in which the cleaning water RW is always sprayed to remove the foreign matter 90, and is also economical. The effect that it is possible to control the amount of waste generated and contribute to the improvement of the environment, and cleaning spots are not generated as compared with the conventional configuration in which the cleaning water RW is sprayed, and the cleaning performance is improved. In addition to the effect that the first and second cleaning tanks 736a and 736b are performing the industrial waste treatment, the first and second cleaning tanks 736a The other of 736b can advantageously possible to clean the filter member 726. In other words, since the apparatus can be operated without stopping during the industrial waste treatment, it is possible to improve the work efficiency.

  In the present embodiment and the above-described modification, the flanges 25 and 25 are provided at both ends in the axial direction of the support rolls 24a, 24b, 24c, 24d, 24e, 524f, 724a, 724b, 724c, 724d, 725a, 725b, 725c, and 725d. Thus, the filter member 26 is prevented from meandering and the supporting rolls 24a, 24b, 24c, 24d, 24e, 524f, 724a, 724b, 724c, 724d, 725a, 725b, 725c, 725d. However, it is not limited to this. For example, as shown in the support roll 824 of the modified example illustrated in FIG. 14, instead of the flange portions 25, 25, the outer peripheral surface of the support roll 824 (filter members 26, 726 are wound around, and the filter members 26, 726 are It is good also as a structure which provides the crowning 27 in the surface to slide.

  In the present embodiment and the modification described above, the draining member 30 is constituted by a plate-like wiping member 30a made of a brush, a rubber plate, or the like, and a draining roll 30b provided at a position facing the wiping member 30a. Although it comprised, it is not restricted to this. Any configuration can be used as long as the cleaning water RW adhering to the filtering members 26 and 726 can be removed. For example, as shown in the draining member 830 of the modification illustrated in FIG. 15, filtration is performed by two draining rolls 830 a and 830 b. It is good also as a structure which removes the washing water RW adhering to the filtration members 26 and 726 by pinching the members 26 and 726. Needless to say, the number of draining rolls sandwiching the filtering members 26 and 726 is not limited to two.

  In the present embodiment and the above-described modifications, the filter members 26 and 726 are configured to use a net-like wire mesh, but the present invention is not limited to this. For example, as shown in the filter member 826 of the modification illustrated in FIG. 16, a steel material having a plurality of holes may be used as the filter member 826.

  In the present embodiment and the above-described modification, a water-insoluble additive (a bulking agent such as wheat flour or calcium carbonate or an effect promoter) is precipitated at the bottom of the cleaning tank 36 or the first and second cleaning tanks 736a and 736b. However, the present invention is not limited to this. For example, as shown in the modification illustrated in FIG. 17, a collection container 46 made of a wire mesh is installed inside the cleaning tank 36, and a water-insoluble additive (such as flour or the like) is placed at the bottom of the collection container 46. It is good also as a structure which precipitates extenders, such as a calcium carbonate, and an effect promoter. Note that the filtration device 720 according to the modification may have a configuration in which the collection container 46 is installed in each of the first and second cleaning tanks 736a and 736b.

  Here, the collection container 46 is configured in a mesh that allows the washing water RW to pass therethrough but does not allow the water-insoluble additives (a filler or an effect promoter such as wheat flour or calcium carbonate) to pass therethrough.

  According to this configuration, the water-insoluble additive (a bulking agent such as flour or calcium carbonate) that is separated and precipitated in the cleaning tank 36 or the first and second cleaning tanks 736a and 736b when the filtering members 26 and 726 are cleaned. And the effect promoter) can be performed more easily.

  In the present embodiment and the modification described above, the filter member 26 is rotated by rotating the support roll 24a by the drive motor 28. However, the other support rolls 24b, 24c, 24d, and 24e are rotated by the drive motor 28. , 524f, and the like may be rotated to rotate the filter member 26. Alternatively, the filter member 26 may be directly rotated by the drive motor 28.

  In the filter device 720 of the modified example, the drive motors 728a and 728b are configured to take up and send out the filter member 726 via the support rolls 724d and 725d, but the present invention is not limited thereto. For example, the filter member 726 may be directly wound or sent out by the drive motors 728a and 728b.

  This embodiment shows an example for carrying out the present invention. Therefore, the present invention is not limited to the configuration of the present embodiment. The correspondence between each component of the present embodiment and each component of the present invention is shown below.

1 Adhesive application device (adhesive medium application device)
2 Conveyor (Conveyor)
2a Roller 4 Single plate (Single plate)
6 Adhesive application mechanism (adhesive medium application mechanism)
8 Adhesive supply nozzle (adhesive medium supply unit)
DESCRIPTION OF SYMBOLS 12 Application | coating roll 14 Regulation | regulation roll 16 Nipping roll 18 Adhesive discharge part 18a Discharge opening (discharge port)
20 Filtration device (filtration device)
22 Containment Tank (Containment Tank)
22a Opening (opening)
22b Extraction pipe 24a Support roll (drive mechanism, first support member)
24b Support roll (drive mechanism, second support member)
24c Support roll (drive mechanism)
24d Support roll (drive mechanism, fourth support member)
24e Support roll (drive mechanism, third support member)
25 buttock part 26 filtration member (filtration member)
27 Crowning 28 Drive motor (drive mechanism, actuator)
30 Draining member (removal member)
30a Wiping member 30b Draining roll 32 Circulation pipe 34 Circulation pump 36 Cleaning tank (cleaning tank)
36a Cleaning area 36b Accumulation area 46 Collection container (collection container, first collection container, second collection container)
60 Adhesive reservoir 90 Foreign matter (foreign matter)
92 Additives (Additives)
120 Filtration device (filtration device)
220 Filtration device (filtration device)
320 Filtration device (filtration device)
420 Filtration device (filtration device)
520 Filtration device (filtration device)
524f Support roll (drive mechanism)
620 Filtration device (filtration device)
720 Filtration device (filtration device)
724a Support roll (drive mechanism, fifth support member)
724b Support roll (drive mechanism, ninth support member)
724c support roll (drive mechanism, seventh support member)
724d Support roll (drive mechanism)
725a Support roll (drive mechanism, sixth support member)
725b Support roll (drive mechanism, tenth support member)
725c Support roll (drive mechanism, eighth support member)
725d Support roll (drive mechanism)
726 Filtration member (filtration member)
728a First drive motor (drive mechanism, first actuator)
728b Second drive motor (drive mechanism, second actuator)
736a First cleaning tank (first cleaning tank)
736b Second cleaning tank (second cleaning tank)
824 Support roll (drive mechanism)
826 Filtration member (filtration member)
830 Draining member 830a Draining roll 830b Draining roll B Adhesive (liquid, adhesive medium)
RW Washing water (cleaning medium)
VP1 virtual plane VP2 virtual plane VP3 virtual plane VTL common virtual tangent VVP virtual vertical plane VVP1 virtual vertical plane VVP2 virtual vertical plane

Claims (10)

A filtration device for filtering the liquid from a discharge port through which liquid containing foreign matter is discharged,
A storage tank having an opening capable of receiving the liquid discharged from the discharge port and configured to store the liquid flowing in through the opening;
An elongated filtering member configured to remove the foreign matter from the liquid discharged from the discharge port, interposed between the discharge port and the opening;
A cleaning tank in which a cleaning medium for cleaning the filtering member after filtering the liquid is stored;
The filter member is driven so that a filtered portion after filtering the liquid of the filtering member is directed to the cleaning tank, and the cleaned portion of the filtering member that is cleaned by the cleaning tank is connected to the discharge port. A drive mechanism for driving the filtration member so as to face the opening;
Equipped with a,
The drive mechanism is configured to rotate and drive one of the cylindrical first, second, and third support members configured to wrap around and support the filtration member, and the first, second, and third support members. An actuator, and
The first and second support members have a positional relationship in which the axes of the first and second support members are parallel to each other at positions opposite to each other with respect to the discharge port, and are orthogonal to both of the axes. With respect to the straight line, when viewed from one side in the direction along the straight line, the axes are arranged so as to be in a positional relationship intersecting the streamlines of the liquid discharged from the discharge port,
The third support member is disposed in the cleaning medium such that an axis of the third support member is parallel to each axis of the first and second support members, and in the cleaning medium, the third support member The extending direction of the filtration member after being wound around the three support members is wound around the third support member with respect to a virtual vertical plane that is directed upward of the cleaning tank and passes through the axis of the third support member. It is configured to change in a direction inclined to the region side where the filtering member just before being hung is arranged,
The filtration member is configured as an endless member wound around the first, second, and third support members, and any one of the first, second, and third support members is rotationally driven. The filtered portion is directed to the cleaning tank, and the cleaned portion is configured to go between the discharge port and the opening.
Filtration device. The drive mechanism further includes a cylindrical fourth support member that wraps and supports the filtration member immediately before being wound around the third support member,
The fourth support member is arranged such that an axis of the fourth support member is parallel to an axis of the third support member at a position below the third support member in the cleaning medium. 2. The filtration device according to 1 . A removal member for removing the cleaning medium attached to the filtration member;
The removal member, wherein the said filtration member is exposed to the outside of the cleaning medium in the filtration claim 1 or 2 is provided on the moving path of the member to go between the opening and the discharge opening Filtration equipment. The cleaning tank has first and second cleaning tanks,
The first and second cleaning tanks are arranged at positions opposite to each other with respect to the opening,
The drive mechanism includes a fifth and sixth support members configured cylindrical to said filter member winding support is disposed above the first and second cleaning vessel, before Kiarai Kiyoshi medium Cylindrical seventh and eighth support members configured to wind and support the filter member, and the filter member on the side of the filter member wound around the seventh support member can be wound up. A first actuator, and a second actuator configured to be able to wind up the filtration member on the side of the filtration member that is wound around an eighth support member,
The fifth and sixth support members have a positional relationship in which the axes of the fifth and sixth support members are parallel to each other, and one of the directions along the straight line with respect to a straight line perpendicular to both of the axis lines. When viewed from the side, each axis is disposed so as to intersect with the flow line of the liquid discharged from the discharge port,
The seventh and eighth support member is arranged so as to be parallel to the respective axes of the before Kiarai Kiyoshi medium seventh and the axis of the eighth support member said fifth and sixth support members,
By driving the first actuator, the filtered part goes to the first cleaning tank and the cleaned part cleaned by the second cleaning tank goes between the discharge port and the opening, By driving the second actuator, the filtered part moves toward the second cleaning tank, and the cleaned part cleaned by the first cleaning tank moves between the discharge port and the opening. The filtration device according to claim 1. The seventh support member, before Kiarai Kiyoshi medium, the extending direction of the filter member after being wound around the front Symbol seventh supporting member, a direction toward the upper side of the first cleaning vessel being configured to change in a direction inclined to said 7 region side of said filter member is arranged just before wound around the seventh supporting member with respect to the imaginary vertical plane passing through the axis of the support member,
The eighth support member, before Kiarai Kiyoshi medium, the extending direction of the filter member after being wound around the front Symbol eighth support member, a direction toward the upper part of the second cleaning tank claim 4 is configured to change in a direction inclined to the region side where the filter member is disposed just before wound around the eighth support member with respect to the imaginary vertical plane passing through the axis of said 8 supporting member Filtration equipment. The drive mechanism further includes cylindrical ninth and tenth support members that wrap around and support the filtration member just before being wound around the seventh and eighth support members,
The said 9 supporting member, at a position lower than the seventh supporting member in front Kiarai Kiyoshi medium, are arranged so as to be parallel to the axis of the ninth support member to the axis of the seventh supporting member ,
Said 10 support member, at a position lower than the eighth support member in front Kiarai Kiyoshi medium, the axis of the tenth supporting member is arranged so as to be parallel to the axis of the eighth support member The filtration device according to claim 5 . The liquid is configured as an adhesive medium in which a water-insoluble additive is added to a water-soluble adhesive,
The filtration device according to any one of claims 1 to 6 , wherein the cleaning medium is water. Filtration device according to claim 7 when dependent on any one of claims 1 to 3, further comprising a collection container for collecting said additive to precipitate the cleaning tank without dissolving into the water. The subordinate to any one of claims 4 to 6 , further comprising first and second recovery containers for recovering the additive that does not dissolve in the water and precipitates in the first and second cleaning tanks. 8. The filtration device according to 7 . A transport conveyor for transporting veneers,
An adhesive medium application mechanism for applying an adhesive medium to the veneer;
An adhesive medium supply unit for supplying the adhesive medium to the adhesive medium application mechanism;
A filtration device according to claim 7 ;
With
The adhesive medium application mechanism has a discharge port for discharging the adhesive medium toward the filtration member of the filtration device;
The filtration device is configured to filter and recover the adhesive medium discharged from the discharge port, and to circulate the recovered filtered adhesive medium to the adhesive medium supply unit.

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