JP5543751B2 - Filter for dust collector, manufacturing method thereof, and dust collector - Google Patents

Description

The present invention relates to a filter suitable for use in various dust collectors such as a dust collector that collects dust and fume generated from a work site such as a factory, and other cleaners and deodorizers , a manufacturing method thereof, and The present invention relates to a dust collector equipped with this filter.

  In order to increase the filter area of the filter, there is a filter surface having a substantially bellows shape (zigzag shape, accordion shape, etc.) so that a large number of folds overlap in the longitudinal direction of the filter.

  FIG. 11 shows an example of a conventional filter having a substantially bellows shape in cross section. In the figure, 100 indicates the entire filter, 101... The filter 100 is a single filter having a substantially bag shape. The filter 100 has a plurality of filter singles 101... That communicate with each other and the outer ends of the single filters 101. The upper part of the uppermost filter unit 101 is formed with a dust-containing air inlet 102 and the lowermost part of the lowermost filter unit 101. Is formed on the closing surface 104.

  However, when the conventional filter 100 having the structure shown in FIG. 11 is used while being vertically installed in the dust collecting chamber, the upper filter unit 101... Is blown by its own weight or dust-containing air. The filter area can be effectively used by extending in the vertical direction, but the lower filter unit 101... Has a problem that the filter area cannot be effectively used because the folds overlap vertically as shown in the figure. was there.

  Therefore, the present applicant, as seen in the “filter for dust collectors” described in Patent Document 1, each filter unit 101 extends in the longitudinal direction of the filter 100 between the outer ends of each filter unit 101. By attaching a string body that maintains a constant interval, the intervals between the individual filters 101 are kept in use (when collecting dust), so that they do not interfere with each other, and the filter filtration area is effective. Developed something that can be used.

JP 2007-14891 A

  However, in the filter described in Patent Document 1 in which the string body is attached to the outer end portion of the filter unit 101 ..., the outer end portion can be held at a constant interval by the string body, but dust-containing air flows in. The intervals between the inner surfaces of each filter unit 101..., Specifically, the upper and lower intervals between the vent holes 103... Are not due to manufacturing variations and the filter medium itself is not stiff. It is difficult to keep constant, and it becomes inevitably non-uniform. As a result, a narrow space is generated at the inner end of the filter unit 101... When the dust is collected and collected, there is a problem that the dust gradually starts to accumulate at the place (the place where the interval between the inner side surfaces is narrow), and finally a closed state occurs.

  In addition, in a state where a closed state has occurred in the inner part of each filter unit 101, the filter filtration area from the inner part to the outer end part cannot be used effectively. There was a problem that the filter 100 was clogged early.

  As a countermeasure for this, a path through which dust-containing air flows is introduced inside each filter unit 101... By using tools such as a crease adhesion prevention plate and a holding member for keeping the distance between the inner surfaces constant. Although a method of securing the folds was considered, if a fold adhesion prevention plate or holding member is attached inside each filter unit 101..., The whole cannot be folded down when not in use (during storage). The use of tools such as a prevention plate and a holding member may cause a problem of an increase in the cost of the filter.

  The present invention has been made to solve the above-mentioned problems, and the technical problem thereof is a filter in which the entirety is formed in a substantially bag shape and the outer portion is formed in a pleat shape. Without using tools such as crease adhesion prevention plates and holding members inside the filter, during use (dust collection operation), the inner surface of each fold is maintained at a predetermined interval to effectively filter the filter. In addition, the filter for dust collectors, the manufacturing method thereof, and the like can be saved by being able to be folded up to a small size when not in use (during storage). The object is to provide a dust collector using this filter.

Means taken in the present invention to solve the above technical problems are as follows.
(1) In order to solve the above technical problem, the filter for a dust collector or the like according to claim 1 of the present invention has a bag shape as a whole, and the outer end portion is formed thin like a fold. The upper and lower vents communicate with each other, and the upper and lower vents communicate with each other, and the folds overlap in the vertical direction of the filter. multiple by continuously provided entirely a filter for such telescopically configured dust collecting apparatus in the vertical direction,
Of the filter itself, which is the more continuously provided, the vent hole is opened in the upper central portion of the first filter alone with respect to the flow direction of at least the dust-containing air and blow port of the dust-containing air, the last filter alone The bottom surface of the filter is a closed surface in which no vent hole is opened, or an open surface in which the vent hole is opened, and both upper and lower surfaces on which the vent holes of each of the plurality of continuous filters are formed. between the inner faces of, by joining the distal ends, the distance between the outer edge portions of the upper and lower vent holes, a plurality of inner cords for holding a constant interval are respectively bonded It is characterized by having.

(2) In addition, a filter for collecting dust and the like according to claim 2 of the present invention, the length of each of said plurality of inner cords that are respectively bonded between the inner surfaces of the upper and lower surfaces of each filter alone It is characterized in that the dimensions are made to the same dimension.

(3) Moreover, the filter for dust collectors which concerns on Claim 3 of this invention is the space | interval which each filter single-piece | unit expands in the up-down direction of the filter between the outer end parts of each said filter single-piece | unit provided in series. Are characterized in that the outer string members for holding at a constant interval are joined together .

(4) According to a fourth aspect of the present invention, there is provided a filter for a dust collector or the like, wherein the entire filter is vertically dust-collected on an upper surface portion of the first filter unit among the plurality of filter units arranged continuously. A mounting member is provided that can be mounted in a suspended state with respect to the inside of the filter chamber of the apparatus and in a state in which the dust-containing air supply port communicates with the dust-containing air blowing port.

(5) In addition, a filter for collecting dust and the like according to claim 5 of the present invention, the mounting member for mounting the whole of the filter in suspended state in the interior of the filter chamber provided in the vertical precipitator However, it is provided on the upper surface of the first filter unit and the fixture configured to be detachable with respect to the ceiling portion of the filter chamber, and the held portion of the fixture can be fitted and mounted. It is characterized by comprising a holding member.

(6) Moreover, the filter for dust collectors which concerns on Claim 6 of this invention is comprised so that the said attachment may be detachable with respect to the ceiling part of the said filter chamber using a permanent magnet. It is said.

(7) Further, in the method for manufacturing a filter for a dust collector according to claim 7 of the present invention, the plurality of single filters are arranged in series so that the folds overlap in the vertical direction of the filter. A method for producing a filter for a dust collector or the like configured to be extendable and contractible,
Two filter cloth bodies, each having a vent hole in the center and having a square shape or a circular shape in plan view, are overlapped, and these filter cloth bodies are joined together at the outer peripheral edge of the vent hole. In addition, at the same time as or after the joining, at least four in total on the left and right side edge portions of the vent holes of the two joined filter cloth bodies with the same dimensions, respectively. A first step of joining the root ends of the inner string body before joining,
Two sets of the bonded filter cloth bodies made in the first step are opposed to each other so that the outer shapes of the two filter cloth bodies coincide with each other, and are attached to each of the opposite filter cloth bodies. A second step of joining the leading ends of the inner string members;
By joining all the outer peripheral parts of the filter cloth bodies on the opposite sides and forming the whole in a substantially bag shape, the inner string body before joining is joined between the inner side faces facing each other. A third step of constructing a single filter constructed as a string,
Two sets of the filter unit and the outer filter cloth bodies produced by the third step are opposed to each other so that the outer shapes thereof coincide with each other, and the filter unit and the outer filter cloth bodies are opposed to each other. 4th process of joining the front-end | tip parts of the said inner side string body provided in the side to be joined, joining all the outer peripheral parts of the filter cloth body of the opposing side, and joining the said filter single-piece | units When,
By repeating the fourth step, a required number of filter single bodies are provided in a row in the vertical direction.

(8) Moreover, the manufacturing method of the filter for dust collectors etc. which concerns on Claim 8 of this invention is the said inner side before joining joined to the outer-periphery edge part of each ventilation hole of the said two piled filter cloth bodies. The number of string members is at least three on one side or an odd number of three or more on one side.

(9) Furthermore, the method for manufacturing a filter for a dust collector or the like according to claim 9 of the present invention includes a means for joining the root end portion of the inner string body before joining to the filter cloth body side, and an outside of the vent hole portion. As means for joining the peripheral portions, means for joining all the outer peripheral portions of the two filter cloth bodies superimposed, and means for joining the tips of the inner string bodies before joining, respectively, Either joining means such as sewing or ultrasonic welding is used, and a sealing process is performed to prevent leakage from the seam when sewing.

(10) Further, the dust collecting apparatus according to claim 10 of the present invention is entirely form a bag shape, the outer end portion with thinly formed as folds, venting the air containing dust to the upper and lower surfaces a plurality of filters alone made the vent hole is opened is formed, communicating the respective vent holes between the top and bottom, and, by a plurality of continuously arranged as pleats overlap over and over again in the vertical direction of the filter, the entire upper and lower to Rutotomoni stretch freely the directions, respectively between each of the inner surfaces of the plurality continuously provided to said each filter alone, a plurality of inner cords which length is made in the same size each bonded, and said to each between each between the outer end portion of each filter alone, each joining a plurality of outer cords for maintaining a gap of each filter alone is extended in the vertical direction at predetermined intervals the filter constituted to be so that, provided on the upper surface portion It is characterized by being attached in a suspended state to the ceiling portion in the filter chamber provided in the vertical dust collector by using the mounting member.

According to the filter for a dust collector or the like according to claim 1 described in the above (1), the filter in which the individual filters are continuously arranged in the longitudinal direction so that the folds overlap each other is used as a filter for the dust collector or the like. When attached in a suspended state inside the chamber (dust collection chamber), the continuous filters are extended downward so as to widen the intervals between the folds by blowing dust-containing air by its own weight or the suction action of the fan. In this extended state, on the relationship between the inner cords between the inner faces of each filter alone is attached, the distance between each filter alone is, each inner cord body mounted between the inner faces of each filter alone Therefore , the predetermined interval is maintained.

  As a result, the interval between the inner ends of each filter unit, that is, the expansion of each filter unit, can be used even when tools such as a crease adhesion prevention plate and a holding member are not interposed inside the filter. Since the state (inflating condition) is kept constant, it does not interfere with each other, and the path through which the dust-containing air flows can be reliably maintained. In addition, the space can be saved by making it possible to fold the whole small when not in use (storage).

  According to the filter for a dust collector or the like according to claim 2 described in (2) above, a plurality of inner cords having the same length are formed when each continuous filter unit extends downward. Each body stretches between the front and rear (upper and lower) individual filters, that is, keeps the parallel state constant, and opens the crease between each other. It is possible to effectively use the filtration area of each filter unit without overlapping and contacting each other.

According to the filter for a dust collector or the like according to claim 3 described in (3) above, the intervals between the folds in the plurality of continuous filter units are set so that each of the inner string members has the same interval. This makes it possible to further increase the effective use of the filtration area.

  According to the filter for a dust collector or the like according to claim 4 described in the above (4), by attaching an outer string body for holding the interval at which each filter unit extends in the longitudinal direction of the filter at a constant interval. The distance between the individual filters at the outer end is kept constant, so that they do not interfere with each other, and the filtration area of the filter can be used more effectively.

  According to the filter for a dust collector or the like according to claim 5 described in (5) above, the filter for a dust collector or the like described in (1) to (4) is placed in the filter chamber of the vertical dust collector. It is possible to use it for dust collection by mounting it in a suspended state using a mounting member and in a state where dust-containing air can be blown into the interior.

  According to the filter for a dust collector or the like according to claim 6 described in (6) above, the filter for the dust collector or the like according to any of (1) to (5) above is a mounting member that includes a fixture and a holding member. And it can be attached to the ceiling part of the filter chamber in a suspended state using a permanent magnet, and it is possible to perform the removal work and replacement work very easily.

  According to the method for manufacturing a filter for a dust collector or the like according to claims 7 and 8 described in (7) and (8) above, the filter according to (1) to (6) is in a usable state. Makes it possible to manufacture.

  According to the method for manufacturing a filter for a dust collector or the like according to claim 9 described in (9) above, the inner string body at the inner end is separated into three (not two), It becomes possible to manufacture using a general-purpose welding machine (a stationary type or a handy type).

  According to the dust collector according to claim 10 described in the above (10), the inner string body is attached to the filter cloth body, the outer peripheral edge portions of the front and back filter cloth bodies, and the inner string bodies are attached to each other. Can be reliably performed by various joining means, and also in the case of sewing, air leakage from the joined portions of the front and back filter cloth bodies can be reliably prevented.

  Furthermore, according to the dust collector which concerns on Claim 10 described in said (10), according to the manufacturing method as described in said (7)-(9), it becomes the structure as described in said (1)-(6). By attaching the manufactured filter for dust collector etc. to the inside of the filter chamber of the vertical dust collector, it is possible to effectively use the filtration area of each connected filter and enhance the dust collection effect. A dust device can be provided.

  The filter for a dust collector, the manufacturing method thereof, and the dust collector according to the present invention are as described above, and each filter can be used without interposing various tools such as a fold adhesion prevention plate and a holder inside the filter. By attaching the inner string body between the inner side surfaces of the single unit, it is possible to prevent the folds of the individual filter units from sticking to each other and reliably hold the path through which the dust-containing air flows.

  Also, since various tools such as crease prevention plates and holders are not used inside the filter, the weight of the entire filter is reduced and the handling of each work such as attaching or replacing the filter to the dust collector is simplified. In addition, it is possible to demonstrate the advantage of preventing the cost of the filter from being increased, and in combination with the fact that the dust collection effect of the dust collector etc. can be enhanced by effectively using the filtration area of each of the connected filters. Thus, it is suitable for various dust collectors and vacuum cleaners, and provides a dust collector capable of exhibiting an excellent dust collection effect by using a filter having such a configuration. can do.

The front sectional view showing an example of the vertical dust collector concerning the example of the present invention. The top view of the filter which concerns on the Example of this invention. The side view of the filter concerning the example of the present invention. The side sectional view of the filter concerning the example of the present invention. The side view which showed the state when the filter shown in FIG. 3 and FIG. 4 was folded. The top view explaining the structure of the filter which concerns on the Example of this invention, and two filter mounting members. The top view explaining the structure of one filter mounting member shown in FIG. The top view explaining the structure of the other filter mounting member shown in FIG. 1st process explanatory drawing explaining an example of the manufacturing method of the filter which concerns on this invention in process order. The 2nd process explanatory view explaining other examples of the manufacturing method of the filter concerning the present invention in order of a process. The side view explaining the conventional filter.

  Hereinafter, embodiments of the filter for a dust collector and the like according to the present invention described above, a method for manufacturing the same, and a dust collector will be described with reference to the accompanying drawings. The filter according to the present invention is configured by connecting a plurality of filter single bodies 1 in a vertical and vertical direction.

  That is, as shown in the cross-sectional views shown in FIG. 1 and FIG. 4 described above, each filter unit 1... Has a hollow shape (bag shape) in which the shape in plan view is substantially square or circular by cutting the filter medium. It is constructed in such a configuration that a ventilation hole 1A for dust-containing air is formed at the center thereof.

  The filter FT according to the present invention includes a plurality of filter singles 1 configured as a bag as a whole as described above, with the central vent hole 1A communicating with each other as shown in the figure, and in the longitudinal direction of the filter FT (in the drawing, The folds (outer end portion 1X) of each filter unit 1... (Up and down direction) are continuously arranged by joining means such as adhesion or sewing so that they overlap each other. The entire configured filter FT is configured to be extendable in the vertical direction.

  Further, in the figure, 2... Are located between the upper and lower inner side surfaces 1H and 1H (see FIGS. 1 and 4) of the filter single bodies 1 connected in the vertical direction, specifically, the ventilation holes 1A. An inner string body (for example, a wide string such as a thread, a ribbon, a wire, etc.) in which the portions of the inner end edges 1Z are connected in the vertical direction, and these inner string bodies 2 are formed of the filter FT. When the whole is in a suspended state (up and down extended state) as shown in FIG. 1, each filter unit 1... Extends vertically at equal intervals, and between the inner side surfaces 1H and 1H of each filter unit 1. Are opened and closed so that the filter surfaces of the individual filters 1 can be used effectively.

  Furthermore, in the figure, 3 is an outer string body (for example, a wide string such as a thread or a ribbon, a wire) in which the outer ends 1X of the individual filter elements 1 are connected in the vertical direction. Etc.). In the embodiment, the shape of each of the vent holes 1A is substantially circular, and the inner string body 2 is attached to the inner end edge 1Z of the vent hole 1A. The vent hole 1A may have a polygonal shape, and the inner string body 2 may be attached to any part of the inner edge 1Z as shown in the figure. The present invention is not limited to the examples.

  FIG. 5 is a side view showing a state when the filter FT according to the present invention is folded. As shown in the drawing, the inner and outer string bodies 2... 3 are bent to make each filter single 1 thin. As a result, the entire filter FT can be made compact so that it can be easily stored, transported, or handled as a dust collector.

  Next, the configuration of the dust collecting apparatus generally indicated by reference numeral 10 for attaching the filter FT according to the present invention configured as described above will be described together with the embodiment shown in FIG.

  In FIG. 1, a vertical dust collector generally indicated by reference numeral 10 is divided into two upper and lower chambers, a filter chamber 10A and a clean chamber 10B, by a partition plate 11 having a plurality of holes 11A. Is formed. A deodorizing box 12 in which activated carbon (not shown) for removing odor contained in the dust-containing air is stored is placed on the partition plate 11.

  A filter FT according to the present invention attached to the lower surface of the upper lid 10X is accommodated in the upper portion of the deodorizing box 12, and a dust-containing air supply port 40 is provided at the center of the upper surface of the upper lid 10X. . The upper lid 10X is fixed to the main body 10T side by clamps 14 and 14 provided on the side surface of the main body 10T.

  Further, in FIG. 1, a mounting base 15 is fixed to the lower part in the main body 10 </ b> T, and a cover body 16 and a fan motor 17 are mounted on the mounting base 15. A rotating shaft (not shown) and a fan (not shown) of the motor 17 are attached to the inside of the cover body 16, and when the fan is rotated by the fan motor 17, dust-containing air is passed through a duct (not shown). The supply port 40 sucks into the filter FT.

  The dust-containing air sucked in as described above passes through the filter FT, is deodorized by activated carbon (not shown) in the deodorizing box 12, and is discharged to the outside air through the exhaust port 10W on the lower side surface of the main body 10T. It is structured to be done.

  Next, a configuration for mounting the filter FT according to the present invention inside the filter chamber 10A of the dust collector 10 described above will be described with reference to the drawings.

  On the upper surface of the filter FT according to the present invention, that is, the upper surface 1F of the uppermost filter unit 1, as shown in FIGS. 2, 6, and 7, the tip portions of the legs 20 </ b> A provided on the fixture 20. A plurality of holding members (holding band bodies) 1S... As mounting members that can be inserted and attached are provided. Further, a suction port 13 made of rubber is attached to the upper surface plate 1T of the uppermost filter unit 1 by means of sewing or the like, and on the outer peripheral surface of the packing 13P for the suction port 13, the above-mentioned A groove portion 13V into which the fixture 20 is fitted is provided.

  When the filter FT configured as described above is mounted in the main body 10T of the dust collector 10 and the supply port 40 is inserted, the tip of the supply port 40 is fitted into the suction port 13 as shown in FIG. It is formed like this. Further, in the embodiment of the drawing, the bottom surface of the filter FT, that is, the bottom surface of the lowermost filter unit 1 is formed as a closed surface 1W (see FIGS. 1 and 3) without opening a vent hole 1A. Prevents air leakage.

  6 is a plan view in which the first and second fixtures 20, 30... Are mounted on the filter FT, FIG. 7 is a plan view showing the shape of the first fixture 20, and FIG. It is the top view which showed the shape of the fixtures 30 .... 7 and 8, the fixture is divided into 20 and 30, respectively. The fixture 20 is formed in a substantially rectangular shape as a whole, and a plurality of legs 20A... When attaching to the FT, each leg 20A is inserted into the holding member 1S of the filter upper surface 1F, and a gourd-shaped insertion opening 21 is formed in the center of the fixture 20. In addition, a part 21K of the peripheral end portion of the insertion port 21 is configured to fit into the groove portion 13V of the suction port 13 described above.

After mounting the above-mentioned fixture 20 on the filter upper surface 1F, the second fixture 30 is inserted from between the first fixture 20 and the uppermost filter upper surface 1F, and its leading edge 30R is inserted into the groove 13V of the filter packing 13P. After the fitting, the boss 30T of the second fixture 30 is fitted into the fitting port 21 of the first fixture 20, so that the second fixture 30 is fitted with a bowl-shaped fit at the center of the first fixture 20. It is stored in the slot 21. By attaching the first and second attachments 20 and 30 to the circumferential surface of the groove 13V of the suction port 13 in this way, when the supply port 40 is inserted into the suction port 13, each comes into close contact with each other. It has a structure that does not occur.

  Permanent magnets 20G..., 30G are provided on the upper surface portions of the first and second fixtures 20, 30, respectively, and an upper lid 10X is provided on the ceiling surface of the filter chamber 10A of the dust collector 10. Since the upper lid 10X is made of metal (magnetic material) and is attached to the main body by the clamps 14 ..., the first and second attachments 20 and 30 are made of a filter chamber by the permanent magnets 20G ... 30G. It is attached to the upper lid 10 </ b> X, which is the ceiling surface of 10 </ b> A, and is connected to the suction port 40. Further, when removing the filter FT, the filter FT can be removed by holding the first mounting tool 20 and pulling it away from the upper lid 10X.

Next, a description will be given of a first embodiment of a method for manufacturing a filter in which the inner string members according to the present invention are connected, together with FIG.
Step 1. A required number of filter cloth bodies 1J having a substantially quadrangular shape in plan view and having a circular vent hole 1A formed at the center are manufactured.
Step 2.2 After superposing the two filter cloth bodies 1J, 1J, the two inner string bodies 2, 2 are placed on the diagonal lines of the upper and lower sides of the filter cloth bodies 1J, 1J and the end face 1Z of the circular vent hole 1A (180 And the end faces 1Z, 1Z of the vent holes 1A, 1A are sewn together with the filter cloth bodies 1J, 1J.
Step 3. Two sets of set ZK manufactured in step 2 are stacked.
Step 4. The inner string bodies 2 and 2 are sewn 2W.
Step 5. Similarly, the inner string bodies 2, 2 on the opposite side are also sewn together 2W.
Step 6. The outer peripheries of the inner filter cloth bodies 1J, 1J are stitched together and 1W is formed.
Step 7. While changing the place, the outer circumferences of the filter cloth bodies 1J and 1J are sewn together for 1W.
Step 8. A plurality of filter cloth sets XZ in this state are prepared.
Step 9. The filter cloth sets XZ in this state are overlapped with each other, and the inner cord bodies 2 and 2 are ultrasonically welded 2X. In this example, a handy type welding machine (not shown) is used.
Step 10. While changing the place, the outer peripheries of the inner filter cloth bodies 1J and 1J are sewn together 1W.
When the above steps are repeated a plurality of times, a filter FT in which a large number of filter single bodies 1 formed by connecting the inner string members 2 are connected is completed.

  In addition, in the said process 4 and 5, the joining method of the inner side string bodies 2 and 2 may be ultrasonic welding 2X from the beginning. In addition, since there is a risk that fine dust collected from the seam leaks out at the stitched place, a sealing process is performed with silicon or the like to prevent the dust from leaking. Further, in the case of the filter unit 1 connected to the inner string body 2, the outer end parts 1X are sewn together even when the outer string body 3 is attached between the outer end parts 1X of the arranged filter elements 1. Just do it.

Next, a second embodiment of the manufacturing method of the filter FT connected with the inner string body 2 according to the present invention will be described with reference to FIG.
Step 1. A required number of filter cloth bodies 1J having a substantially quadrangular shape in plan view and having a circular vent hole 1A formed at the center are manufactured.
Step 2.2 After superposing the two filter cloth bodies 1J and 1J, the three inner string bodies 2 are divided into approximately three equal parts of the upper and lower sides of the filter cloth bodies 1J and 1J and the end face 1Z of the circular vent hole 1A ( 120 ° interval), the end faces 1Z and 1Z of the vent holes 1A and 1A are sewn together with the filter cloths 1J and 1J.
Step 3. Two sets of set ZK manufactured in step 2 are stacked.
Step 4. The inner string bodies 2 and 2 are sewn ZW. Or it joins by ultrasonic welding.
Step 5. Similarly, the three inner string bodies 2 are sewn 2W.
Step 6. The outer peripheries of the inner filter cloth bodies 1J, 1J are stitched together and 1W is formed.
Step 7. While changing the place, the outer circumferences of the filter cloth bodies 1J and 1J are sewn together for 1W.
Step 8. A plurality of filter cloth sets XZ in this state are prepared.
Step 9. The filter cloth sets XZ in this state are overlapped with each other, and the inner string bodies 2 are ultrasonically welded ZX. In this example, a stationary type welder is used.
Step 10. While changing the location by 10.120 degrees, ultrasonic welding 2X is performed on all three inner string bodies 2... And then the outer circumferences of the filter cloth bodies 1J and 1J are sewn 1W.
When this operation is repeated a plurality of times, a filter FT in which a large number of filter singles 1 formed by connecting the inner string bodies 2 are connected is completed.

  In step 9, the operation direction of the horn 50 for ultrasonic welding when the inner cords 2 are joined may be moved horizontally. In addition, since there is a risk that fine dust collected from the seam leaks out at the stitched place, a sealing process is performed with silicon or the like to prevent the dust from leaking.

  When the filter FT according to the present invention configured as described above is suspended in the dust collector 10 as shown in FIG. 1 using the fixtures 20 and 30, and the dust collecting fan is rotated, the supply port 13 is rotated. Through the ventilation holes 1A of each filter unit 1 ..., the dust-containing air is sucked into the filter FT, specifically, into each filter unit 1 ... opened in an up-down direction, The clean air filtered by effectively using the filtration area of the filter unit 1... Is exhausted from the exhaust port to the outside air through the deodorization box.

  Further, the filtering action by the filter singles 1 is such that the continuous filter singles 1 are all extended at equal intervals by the inner and outer string members 2 and 3, and the folds of the filter singles 1 overlap. Since they do not interfere with each other, it is possible to effectively use the filter surface of each filter 1 to exhibit an excellent filtering action (dust collecting effect) as described above.

FT filter 1 Filter unit 1J Filter cloth body 1A Vent hole 1Z Inner edge 2 Inner string body 3 Outer string body 10 Dust collector 20, 30 Fixture

Claims (10)

The entire filter is formed in a bag shape, and the outer end is thinly formed like a fold, and a plurality of filter units each having a vent hole for ventilating dust-containing air are formed on the upper and lower surfaces. It is a filter for a dust collector or the like that is configured to be stretchable in the vertical direction as a whole by connecting multiple holes so that the holes communicate with each other and the folds overlap in the vertical direction of the filter.
Of the filter itself, which is the more continuously provided, the vent hole is opened in the upper central portion of the first filter alone with respect to the flow direction of at least the dust-containing air and blow port of the dust-containing air, the last filter alone The bottom surface of the filter is a closed surface in which no vent hole is opened, or an open surface in which the vent hole is opened, and both upper and lower surfaces on which the vent holes of each of the plurality of continuous filters are formed. between the inner faces of, by joining the distal ends, the distance between the outer edge portions of the upper and lower vent holes, a plurality of inner cords for holding a constant interval are respectively bonded A filter for a dust collector, etc. According to claim 1, wherein said plurality of length of the inner cords that are respectively bonded between the inner surfaces of the upper and lower surfaces of each filter alone, characterized in that they are made respectively the same size Filter for dust collector etc. Between the outer ends of each of the plurality of filter units arranged in series, outer string members for holding the intervals at which the individual filter units extend in the vertical direction of the filter at a constant interval are joined to each other. The filter for a dust collector or the like according to claim 1 or 2.   Among the plurality of continuous filters, the entire filter is suspended from the upper surface of the first filter alone with respect to the filter chamber of the vertical dust collector, and the dust-containing air is injected. The filter for a dust collector or the like according to claim 1, 2 or 3, further comprising a mounting member that can be attached in a state where a supply port of dust-containing air is communicated with the mouth. Said mounting member for mounting the whole of the filter in suspended state in the interior of the filter chamber provided in the vertical type dust collecting apparatus, the fixture was detachable from the ceiling of the filter chamber, said first The dust collecting device according to claim 4, wherein the dust collecting unit is configured by a holding member that is provided on an upper surface portion of the filter unit and that can be fitted and attached to a held portion of the fixture. Filter for equipment etc.   The filter for a dust collector or the like according to claim 5, wherein the fixture is configured to be detachable from a ceiling portion of the filter chamber using a permanent magnet. A method for producing a filter for a dust collector, etc., which is configured to be stretchable as a whole, by arranging a plurality of single filters so as to overlap the folds in the vertical direction of the filter.
Two filter cloth bodies, each having a vent hole in the center and having a square shape or a circular shape in plan view, are overlapped, and these filter cloth bodies are joined together at the outer peripheral edge of the vent hole. In addition, at the same time as or after the joining, at least four in total on the left and right side edge portions of the vent holes of the two joined filter cloth bodies with the same dimensions, respectively. A first step of joining the root ends of the inner string body before joining,
Two sets of the bonded filter cloth bodies made in the first step are opposed to each other so that the outer shapes of the two filter cloth bodies coincide with each other, and are attached to each of the opposite filter cloth bodies. A second step of joining the leading ends of the inner string members;
By joining all the outer peripheral parts of the filter cloth bodies on the opposite sides and forming the whole in a substantially bag shape, the inner string body before joining is joined between the inner side faces facing each other. A third step of constructing a single filter constructed as a string,
Two sets of the filter unit and the outer filter cloth bodies produced by the third step are opposed to each other so that the outer shapes thereof coincide with each other, and the filter unit and the outer filter cloth bodies are opposed to each other. 4th process of joining the front-end | tip parts of the said inner side string body provided in the side to be joined, joining all the outer peripheral parts of the filter cloth body of the opposing side, and joining the said filter single-piece | units When,
A method for producing a filter for a dust collector or the like, characterized in that a plurality of necessary filter single bodies are arranged in a vertical direction by repeating the fourth step.   The number of the inner string bodies before joining that are joined to the outer peripheral edge portions of the vent holes of the two filter cloth bodies that are overlapped is at least three on one side or an odd number that is three or more on one side. The manufacturing method of the filter for dust collectors of Claim 7 characterized by the above-mentioned.   Means for joining the root end portion of the inner string body before joining to the filter cloth body side, means for joining the outer peripheral edge portions of the vent holes, and all the outer peripheral portions of the two filter cloth bodies that are overlapped As the means for joining and the means for joining the front end portions of the inner string body before joining, any joining means of bonding, sewing, or ultrasonic welding is used, and the seam is used for sewing. The method for producing a filter for a dust collector or the like according to claim 7 or 8, wherein a sealing process is performed to prevent leakage from the filter. The entire filter is formed in a bag shape, and the outer end is thinly formed like a fold, and a plurality of filter units each having a vent hole for ventilating dust-containing air are formed on the upper and lower surfaces. holes each other are communicated, and, by a plurality of continuously arranged as pleats overlap over and over again in the vertical direction of the filter, to Rutotomoni stretch freely up the entire vertically, the which is the more continuously provided A plurality of inner string members each having the same length are joined to each of the inner side surfaces of each filter unit, and between the outer ends of each filter unit. each also, a filter each filter alone is configured so that to each joining a plurality of the outer cord body for maintaining a gap that extends a predetermined distance in the vertical direction, with a mounting member provided on the upper surface portion The sky in the filter room installed in the vertical dust collector Relative parts, suspension filter for a dust collector or the like, characterized by comprising attached to state.

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