JPS6227666B2 - - Google Patents

Description

Detailed Description of the Invention The present invention is suitable for use in, for example, combined treatment tanks, individual human waste treatment tanks, contact aeration chambers for industrial wastewater treatment, secondary and tertiary treatment, cooling towers, waste gas treatment towers, and deodorization towers. Regarding the manufacturing method of the filler, in detail, a rod-shaped filler is heat-sealed to a planar first net 2 made of synthetic resin and having enough rigidity to self-retain its shape, placed on a base 1. A large number of first spacers 4 are placed at regular intervals, and the second mesh body 3 made of synthetic resin is stacked on the first mesh body 2 from the outside, and a large number of rod-shaped first spacers 4, 4 are placed on top of each other. The first and second nets 2 and 3 are heat-sealed by a heat-sealing means 5 disposed between each of the second nets 3 and outwardly from the second nets 3, and then the first and second nets 2 and 3 are 2 spacer 6
are placed on each of the heat-sealed areas, the third net 7 is placed on the second net 3 from the outside, and the second and third nets 3,
7 are heat-sealed by the heat-sealing means 5, and in this way, the heat-sealing positions of a large number of mesh bodies are shifted one after another, and only those that overlap inside and outside are heat-sealed,
This relates to a method for manufacturing a filler used in contact aeration chambers, etc., which is characterized in that the parts of the net that overlap inside and outside that are not heat-sealed are separated to maintain the overall shape in a substantially honeycomb shape. It is.

The purpose of the present invention is to efficiently and reliably fuse a plurality of planar mesh materials, to easily form the overall shape into a honeycomb shape, and to keep the material thin during packaging. Manufacture of packing materials for use in contact aeration chambers, cooling towers, waste gas treatment towers, deodorization towers, etc., which are advantageous in production and handling. The purpose is to provide a method.

The apparatus for carrying out the method of the present invention will be described in detail below with reference to the drawings.

Reference numeral 10 is a frame made of angle materials and channel materials. The pedestal 10 is open upward. The upper opening of the mount 10 has a mount 10 attached thereto.
Pillow materials 12 having a width smaller than the width of the upper opening are placed at intervals in the length direction of the frame 10 so as to be slidable in the width direction of the frame 10 over a small range. A pair of rails 11, 11 are installed on these pillow materials 12 substantially parallel to each other. Rollers 15 are attached to the base 1 as shown in FIG. 6, and the base 1 is slidably mounted on the rails 11, 11 via the rollers 15. Projecting pieces 13 are provided on the pillow materials 12, 12 at both longitudinal ends of the pedestal 10, respectively. An air cylinder 14 is attached between the protruding piece 13 and the pedestal 10. A motor 16 with a speed reducer is attached to the bottom of the central portion of the frame 10. Frame 1
A sprocket 17 is rotatably provided at both ends in the length direction and at the center in the width direction. A chain 19 is wound around the sprocket 18 of the motor 16 with a speed reducer and the sprockets 17, 17 at both ends of the frame 10, and a mounting piece 20 hanging from the base 1 is linked to the chain 19. Thus, by forward and reverse rotation of the motor 16 with a speed reducer, the base 1 can be driven and moved along the rails 11 in the length direction (horizontal and lateral directions) of the pedestal 10 via the chain 19. Also, due to the expansion and contraction operation of the air cylinder 14,
The pillow material 12 is moved over a small range in the width direction of the pedestal 10 so that its position can be changed relative to the heat-sealing means described later.

Reference numeral 5 denotes a heat fusion means, which includes two stand poles 2 erected at both ends of the central part in the length direction of the pedestal 10.
1, an elevating frame 23 installed vertically and slidably between these two stand poles 21, 21, and a plurality of hot air heaters 24 attached to the elevating frame 23 at a thermally fused interval l, It consists of an air cylinder 22 for lifting and lowering installed between an lifting frame 23 and a fixed frame 25. By expanding and contracting the elevating air cylinder 22, the elevating frame 23 can be raised and lowered to move the hot air heater 24 close to and away from the base 1. Further, the installation interval between the hot air heater 24 and the base 1 can be adjusted appropriately.

A comb-shaped jig 26 is used as the first and second spacers 4, 6, and is used repeatedly in large numbers or in small numbers. As shown in FIG. 10, the comb-shaped jig 26 is made by welding together a comb-shaped band of iron. The comb teeth of the comb-shaped jig 26 become the first spacer 4 and the second spacer 6 (when the comb-shaped jig 26 is used as described later).
The comb-shaped jig 26 may be made of wood, a thermosetting synthetic resin, or a heat-resistant resin.In short, it may be made of any material that does not thermally fuse to the mesh body described below even when heated to a certain temperature, or is heat-resistant. Reference numeral 27 denotes a presser frame, which has a shape substantially the same as the comb-shaped jig 26, with its comb tooth tips connected by a connecting frame 28, as shown in FIG. 11A. a is a net body, which is a molded product of thermoplastic synthetic resin such as polyethylene;
The mesh is about 5 mm to 20 mm square and has enough rigidity to maintain its shape. In addition, the net body a may be made by knitting a warp material and a weft material made of a thermoplastic synthetic resin such as polyethylene, and heat-sealing the intersecting portions thereof. Note that the mesh size and mesh shape can be changed in design as appropriate.

The method of the present invention will be explained using the apparatus described above. First, as shown in FIG. 12A, a comb-shaped jig 26' having the same shape as the comb-shaped jig 26 is placed on the base 1 directly below the hot air heater 24 so that the comb teeth thereof serve as the bottom spacer 26a'. Thereafter, the first mesh body 2 is placed on the base 1, and then the comb teeth 26a of the comb-shaped jig 26 as the first spacer 4 are at a half-pitch position from the comb teeth 26a' of the comb-shaped jig 26' on the base 1. Shift the comb-shaped jig 26 onto the first net 2, then stack the second net 3 on top of the first net 2, place the presser frame 27 on top of the second net 3, and place the comb-shaped jig 26 on the first net 2. Press the first and second nets 2 and 3 so that they do not shift. In this case, the crosspiece 27a of the presser frame 27 is located above the first spacer 4, so that the presser frame 27 does not cover the heat-sealed portions of the first and second nets 2 and 3. Then, the hot air heater 24 is lowered by extending the lifting air cylinder 22, and by turning on the switch of the hot air heater 24, the hot air is sent to the second net 3 and the first net under this.
It is sprayed onto the net body 2. Next, the switch of the motor 16 with a reduction gear is turned on, and the base 1 is driven and moved in the left and right directions along the rails 11, 11 through the chain 19, which rotates as the motor rotates. Then, the first and second mesh bodies 2 and 3 are heat-sealed in the width direction with a heat-sealing interval l to form a large number of lines and the lines of the meshes of the mesh bodies 2 and 3 are in an arbitrary state. (See Figure 12 A). During heat fusion, hot air is blown to bond the second and first net members 3, 2 together.
After a short period of time after the portion is almost melted, it is pressed with a caster wheel serving as a presser roller, which will be described later, to ensure reliable thermal fusion. In other words, by being able to press the object at an appropriate point in time when it is in a state where it is slowly changing from a molten state to a hardened state, it is possible to press it with a caster wheel (described later) as a pressure roller, and it is possible to press it in the molten state itself or to change it to the original shape of the net. Due to its restorability, the resin can be heat-sealed to prevent the resin from tearing, which is likely to occur when the mesh lines are stretched. In this way, the first and second net members 2 and 3 are thermally fused together. In such a case, since there is a comb-shaped jig 26' behind the heat-sealed part, the first
This can prevent heat fusion between the second nets 2 and 3 and the base 1. The base 1 is made of iron, wood, and FRP.
Since it is made of a material that does not thermally fuse with the net body a, such as thermosetting resin, there is no risk of thermal fusion occurring between the base 1 and the net body a. When the surface is finished to be smooth, the comb-shaped jig 26' as a spacer placed on the base 1 may not be provided.

Next, the hot air heater 24 is raised by the contraction of the lifting air cylinder 22, and the contracted air cylinder 14 is expanded in the direction of the arrow b in FIG. 3, and the rail 11 is moved in the direction of the arrow b through the pillow material 12. Thus, the positions of the first and second nets 2 and 3 are shifted by about half a pitch with respect to the hot air heater 24. Thereafter, the comb-shaped jig 26' on the base plate 1 is removed (see FIG. 12B). Then, the comb tooth-shaped jig 26 is placed so that the comb teeth 26a, which will become the second spacer 6, are located above the fused portion where the first and second mesh bodies 2 and 3 are heat-sealed, and the 3 Place the net body 7,
A presser frame 27 is placed on the net 7 to fix the third net 7 in position. After that, the hot air heater 24 is lowered, and the second mesh body 3 and the third mesh body are placed on the second spacer 6.
The mesh body 7 is heat-sealed (see Fig. 12C). By repeating this process, a large number of mesh bodies a
While shifting their positions one after another, only those that overlap above and below are heat-fused. Thereafter, rod-shaped weights (not shown) are inserted into the respective gaps between the mesh welding points formed on the lowermost first mesh body 2 side and the uppermost mesh body 9 side. Either the mesh body 2 or the mesh body 9 at the other end is placed on top, softened and deformed in a hot blast oven, and then cooled to form the entire structure as shown in FIG. 12D. Filler A is obtained by forming it into a substantially honeycomb shape. Filler A thus obtained was placed in a contact aeration chamber (not shown).
It is used as an adhesion body for bacteria that is filled into the sludge and decomposes the sludge. Note that the filler A can also be used in areas other than contact aeration chambers.

Next, the configuration of the hot air heater 24 will be explained. As shown in FIG. 14, the hot air heater 24 has a built-in nichrome wire heater and a blower, and these hot air heaters 24 are connected to two hot air heaters 2 as shown in FIG.
Rubber caster wheels 31, 31 are tilted so as to form elongated, substantially rectangular weld lines by the hot air jetted from the nozzles 4, 24, and are rotatable on the left and right sides of the hot air heaters 24, 24, respectively. It is attached to the frame 32, and the injection port of the hot air heater 24 is positioned slightly above the contact point of the caster wheel 31, and the position of the hot air heater 24 relative to the contact point of the caster wheel 31 can be finely adjusted. It's like this. Note that the configuration of the hot air heater 24 can be modified in various ways, such as a configuration in which hot air is supplied by a blower. According to such a configuration, the caster wheels 31 and 3 are moved by the extension of the lifting air cylinder 22.
1 is brought into contact with the top layer net a of a large number of stacked boards, and while in this contact state, the base 1 is moved in the left and right direction and hot air from the hot air heater 24 is used to heat the top layer net a. In order to heat-seal the mesh body a below this, after being melted by hot air, the substrate 1 is moved from a molten state to a hardened state by pressing with the rear caster wheel 31 to ensure a reliable heat-sealing. This is what we do. In this state of transition from the molten state to the hardened state, the two mesh bodies a, a are connected to the caster wheel 3.
By pressing in Step 1, the welded part is stretched and the mesh lines become thinner and easier to tear due to the ease of the resin tearing when pressed immediately in a molten state and the ability of the net to restore its original shape after pressing. This enables reliable and strong heat fusion to be performed.

In the embodiment, the hot air heater 24 is fixed and the net body side is moved, but the net body side may be fixed and the hot air heater 24 side is moved. Moreover, instead of the hot air heater 24, various design changes are possible, such as a hot wire line heater that can radiate infrared rays and similar heat rays in a line shape using a reflection device.

Also, when changing the heat fusion position, the hot air heater 2
The hot air heaters 24 may be arranged close to each other with narrower intervals so that an appropriate one can be selected and used from among the large number of hot air heaters 24. With this configuration, a drive structure for the base 1 for changing the heat-sealing position can be omitted.

FIGS. 16 to 23 show apparatuses used in another method of the present invention, and the other method of the present invention will be explained based on the drawings of these apparatuses.

The guide frame 33 whose plan view is shown in FIG. 19 is formed into a substantially square shape and is open at the top and bottom. Guide frame 3
3 used wood, but any other material may be used. Guide grooves 37 are formed in a pair of opposing guide frame members 36, 36 of the peripheral frame of the guide frame 33, respectively.
are drilled vertically, and horizontally spaced apart at regular intervals. The guide groove 37 is V in plan view.
Although it is formed into a letter shape, it can be changed to other shapes.

The guide frame 37 is held on the pedestal 10 via a coil spring 38, as shown in FIGS. 16 and 17. The pedestal 10 has an elevating frame 23
is provided so that it can be raised and lowered via an air cylinder 22 for raising and lowering. The elevating frame 23 is provided with a large number of horizontal lattices 45. However, coil spring 3
The guide frame 33, which is ejected at step 8, comes into contact with the lower surface of the horizontal lattice 45, so that the guide frame 33 can be positioned. A heat sealing means 5 is movably supported on the lifting frame 23 via a rack and pinion mechanism 39. As shown in FIGS. 16 and 23, the heat fusion means 5 branches and supplies air from a blower 40 to each outlet 42 through a duct 41, and connects a nichrome wire heater provided at each outlet 42. 43 so that hot air can be supplied from the outlet 42. The base 1 is shaped so that it can be inserted into the guide frame 33. The base plate 1 is mounted substantially horizontally on a pressing force adjusting cylinder 44 mounted on the pedestal 10.

The pedestal 10 is mounted on a base 46, and the pedestal 10 is moved in the heat-sealing interval l direction via the rail body 47 on the base 46 side and the rolling roller 48 on the gantry 10 side to adjust the heat-sealing position. It is possible to change it.
49 is a cylinder for changing the heat-sealing position.

As shown in FIG. 18, the lifting frame 23 has an arm 50 extending outward and downward. base 46
On the side, an inclined frame 51 extends outward and upward. A long hole 52 is provided in the inclined frame 51,
A pin 53 provided on the arm 50 side is slidably inserted into this elongated hole 52. By extending the lifting air cylinder 22, the 18th
As shown by the imaginary line in the figure, the lifting frame 23 is swung up diagonally upward together with the heat sealing means 5 attached thereto, so that the upper part of the guide frame 33 can be opened.

Another method of the present invention will be explained using such an apparatus. First, as shown in FIG.
4, the plate-shaped base 1 is inserted, and the rod-shaped bottom spacer 26a' is inserted into the guide groove 37.
Place the first net 2 on top of it, and place the first net 2 separately on top of the first net 2.
The spacer 4 is placed in the guide groove 37 with the spacer 4 shifted by half a pitch from the bottom spacer 26a', the second net 3 is laid on top of the spacer 4, the lifting air cylinder 22 is contracted, and the lifting frame 23 is placed on the guide frame 33. Then, by extending the pressing force adjustment cylinder 44, the base plate 1 is raised within the guide frame 33, and the upper surface of the stacked net members a is pressed against the traveling shaft 54, and then the rack and pinion mechanism 39, etc. The first net 2 and the second net 3 are thermally fused with the running wheels 54 pressed against the second net 3 stacked above with a preferable pressing force. The elevating air cylinder 22 is extended, and the elevating frame 23 and the heat fusing means 5 are swung diagonally upward to open the upper part of the guide frame 33. Above is the rod-shaped third spacer 34.
A large number of spacers are placed half a pitch apart from the second spacer 6, and the third mesh 7 is placed on top of the spacer 6, and the cylinder 4 is
9 is activated to change the fusion position, the elevating air cylinder 22 is contracted, and the elevating frame 2 is
3 is brought into contact with the guide frame 33, and the second mesh body 3 and the third
The mesh body 7 is heat-sealed by the heat-sealing means 5, and in this way, the mesh bodies a... are stacked one after another in multiple layers, and only the overlapping mesh bodies a, a are heat-sealed. With a spacer interposed between the stacked mesh bodies a, the pressing force adjustment cylinder 44 is extended to raise and take them out from the guide frame 33, and then the spacer is extracted from the group of mesh bodies a. After extraction, the filler A is simply obtained by retaining the substantially honeycomb shape in the same manner as in the above-mentioned method. It goes without saying that the rod shape is not limited to any particular shape.

That is, in the other method of the present invention, by using the guide frame 33, the positioning of each spacer can be easily and reliably performed, and a large number of mesh bodies can be reliably and quickly heat-sealed.

In summary, the method of the present invention is to attach a rod-shaped first net that is not heat-sealed to the first net and that is made of synthetic resin and has enough rigidity to self-retain its shape and is placed on a base. A large number of spacers are placed at regular intervals, and the second mesh made of synthetic resin is stacked on the first mesh from the outside, and placed in the middle of each of the multiple rod-shaped first spacers and from the second mesh. The first and second nets are heat-sealed using a heat-sealing means placed outside the mesh, and then a large number of rod-shaped second spacers are placed on each of the heat-sealed locations, and a The third mesh body is stacked on the second mesh body, and the second and third mesh bodies are heat-sealed by the heat-sealing means at the location where the first spacer is disposed, and in this way, a large number of mesh bodies are bonded together. This method heat-seals only those that overlap inside and outside while shifting the heat-sealing positions of the nets one after another.In other words, two sheets of planar nets are stacked, and they are separated horizontally at a certain distance. When heat-sealing the mesh in a substantially linear shape, and heat-sealing the outer second mesh body of the two heat-sealed sheets and the third mesh body stacked further outside,
Since the second spacer is interposed at the heat-sealing point between the first and second mesh bodies, only the second and third mesh bodies can be heat-sealed without involving the first mesh body.
By repeating this method, it is possible to heat-seal only those that overlap inside and outside while shifting the heat-sealing positions of a large number of nets one after another. Materials can be efficiently and reliably fused together, and the whole can be easily formed into a honeycomb shape by simply separating the parts of the mesh that overlap on the inside and outside that are not heat fused. It has the advantage that it can be made thinner and thinner, which is advantageous in terms of manufacturing and handling.

[Brief explanation of the drawing]

Fig. 1 is a partially omitted plan view of an apparatus for carrying out the method of the present invention, Fig. 2 is a schematic side view of the same as above, Fig. 3 is an exploded perspective view of the same as above, partially omitted, and Fig. 4 is an exploded perspective view of the same as above. Fig. 5 is an enlarged side view of the same as above with some parts omitted; Fig. 6 is a front view of the same board as above mounted on a rail; Fig. 7 is a front view of the same as above with some parts omitted. Figure 8 is a partially enlarged side view of the same as above;
Fig. 9 is a partially enlarged plan view of the same as above, Fig. 10 is a partially omitted plan view of the same spacer as above, Fig. 11 A is a partially omitted plan view of the same presser frame, and Fig. 11 B is a partially omitted plan view of the same as above. Cross-sectional view of presser frame, Fig. 12 A, B, C,
D is a schematic side view and perspective view showing the same method over time, FIG. 12 E is a partially enlarged side view of the same as above, and FIG. 13
The figure is an enlarged side view showing the installed state of the hot air heater same as above, FIG. 14 is an enlarged side view of the same hot air heater as above,
Fig. 15 is an enlarged perspective view of the same caster wheel as above, Fig. 16 is a plan view of a device used in another method of the above, Fig. 17 is a front view of the same as the above, Fig. 18 is a side view of the same as the above, and Fig. 19 is a side view of the same as the above. The figure is a plan view of the same guide frame as above, Figure 20 is a side view of the same as above, and Figure 21 is the X of Figure 19.
- An X-ray sectional view, FIG. 22 is a sectional view taken along the Y-Y line in FIG. 4 is a second net, 4 is a first spacer, 5 is a heat sealing means, 6 is a second spacer, and 7 is a third net.

Claims (1)

[Claims] 1 A rod-shaped first spacer that is not thermally fused to the first net is spaced apart at a certain interval from a planar first net made of synthetic resin that is rigid enough to maintain its shape and is placed on a base. A large number of spacers are mounted, and the second mesh made of synthetic resin is superimposed on the first mesh from the outside, and the heat is placed in the middle of each of the plurality of rod-shaped first spacers and outward from the second mesh. The first and second
The nets are heat-sealed, and then a large number of rod-shaped second spacers are placed on each of the heat-sealed locations, and the third mesh is superimposed on the second mesh from the outside, and the first
The second and third nets are heat-sealed using the heat-sealing means at the location where the spacer is provided, and in this way, a large number of meshes are overlapped inside and out while shifting their heat-sealing positions one after another. It is intended to be used in contact aeration chambers, etc., which are characterized by heat-sealing only objects together, and then separating the parts of the net that overlap inside and outside that have not been heat-sealed to maintain the shape of the whole in an approximately honeycomb shape. A method for producing a filling material.