• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    In making air filters from continuously moving strip, hot melt adhesive is first applied to the edges, and the strips is then folded in accordeon manner to bring the adjacent coated strip edges into simultaneous contact. Pressure on the glued edges is maintained for a period while the strip is advanced on a conveyor, resulting in parallelepipedal pockets. Before adhesive application a set of rollers have provided the strip with transverse creases to aid folding and also with projection and recesses which prevent the pocket walls coming into close contact. The folded strip is cut into lengths with a pre-determined number of pockets, forming a filter unit which has its top enclosed in a frame to form a sealing flange. Pref. the adhesive is polyester-based. The appts. has relatively large output in a given period.
    公开号:SU1055316A3
    申请号:SU803211167
    申请日:1980-11-28
    公开日:1983-11-15
    发明作者:Манчино Дино
    申请人:Джилардини С.П.А (Фирма)；
    IPC主号:
    专利说明:

    Conveyor belt for output strip folded.
    7. The device is pop, b, different from the fact that the conveyor belt is installed with the possibility of movement, and its speed is higher than the feed rate into the path of the band folded into the pockets.
    8. Device on PP. 3-7, that is, so that it is provided with a means for adjusting the height and width of the transport path, made in the form of a pair of plates installed with the possibility of adjusting the distance between them,
    9. The device according to PP, 3-8, which is equipped with a deforming unit for the strip located in front of the unit for applying glue and equipped with two rollers with a tailor made on the surfaces of pattern No. 1 and recesses for forming transverse fold lines, with the longitudinal components of the protrusions and recesses located along the length of the strip
    I 10. The device is pop. E, which differs from the fact that the rollers are equipped with elements with lugs and recesses installed on them,
    11. The device according to PP. 9 and 10, characterized in that one of the rollers is connected to the engine, and the other roller is installed opposite the first roller, with the protrusions of one roller entering the corresponding recesses of the other roller.
    12. Device on PP. 9.11, characterized in that the first roller is rotatably mounted, with its circumferential speed exceeding the circumferential speed of the rollers
    knot strain.
    13. The device according to paragraphs. 3 to 12, characterized in that it is provided with a photoelectric device for detecting the presence of a band in the device.
    14. The device according to paragraphs. 3 to 13, characterized in that it is provided with means for determining the intervals for feeding the strip.
    15. The device according to claim 14, wherein the means for determining the intervals is made in the form of a liquid dispenser.
    16. The device according to claim 14, wherein the means DD1I determine the supply intervals with the possibility of periodic adjustment of the marking strip
    17. Air filter, characterized in that it is designed as a parallelepiped.
    The invention relates to a method of manufacturing air filters, harmonicated ATPs, and to a device for making them. A known method of making a filter involves the operation of applying a cold adhesive to the on-edge of a filtering material followed by folding the band into an accordion and exposing the adjacent edges of the strip with a cross-pressure applied on them to ensure their constant contacting. Such pressure on the edge is necessary, since when the cold adhesive is dried, it decreases in volume ij. A device for implementing this method includes a roller with a roll wound around it, from which a strip of filter material is wound. This strip is fed into the cold adhesive application unit on the edges of the strip, to the folding unit of the strip in the accordion and to the pressing unit of the adhering edges of the strip with the adhesive applied on them to each other. Along the edges, cuts are made every two bending lines, which reduce the stresses able to separate the edges. The strip is fed in intermittently so as to ensure that the adjacent edges of the strip are pressed against one another, otherwise the additional operation of cutting the transverse edges of the strip will be required. The disadvantage of the filter obtained by a known method and the installation is that they are relatively expensive, since the manufacture is associated with the need to press the adjacent edges of the strip to one another after applying a cold adhesive to them. As a result, the method does not provide a relatively high performance due to the intermittent strip feeding rhythm, and the device for its implementation is relatively complicated due to the need to use in it a means to press against the edges of the strip or to make the required incisions. The purpose of the invention is to reduce the cost of manufacture of the filter and simplify the method of manufacture.
    The goal is achieved by the fact that according to the method of manufacturing air filters, folding the filter material into the accordion to form adjacent pockets connected between the upper edge and glued along the transverse edges, the subsequent cutting of this strip into segments contains a certain amount: Pockets, and the design of the sealing tab by crimping along the perimeter of the upper edges of these segments, before being folded on the edge along the edge of the vanoslt: the mountain is bent and when folding the AHHfflOT adjacent Before and after the adhesive of the breakout, a filter band is formed in order to form lines along the transverse lines, and to form protrusions and grooves stretched along the length of the band and bend the “ridge”, and the walls of the pockets facing each other and one from each other, the folding of the strip in harmony is realized with a significant decrease in the strip feed rate by acting on the bending line of the strip, after folding the strip it is moved using a transport track, while folded strip is maintained in a compressed state.
    Overlaying the glue on the edges of the strip of the filter of the material is carried out at a temperature of just about
    A device for making air filters, including a node for folding the band of filtering material into a garmshack with the formation of adjacent pockets, coefficients along the upper edges and glued along the transverse edges, is provided with a node for applying glue and a node for feeding the band into the node for folding the band into an accordion installed in front of the strip folding unit, the strip folding assembly being provided with a plurality of guides forming the transport path for the folded strip in the pocket, and the height and width of the path are according to the height and width of the pocket.
    The adhesive application unit contains at least one container, an adhesive heater and two tubes leading to two nozzles installed with overlapping edges of the filter media strip.
    The feed unit is equipped with a roller for inserting the strip and a shaft located parallel to it with at least one roller mounted on the strip in the no-glue zone and holding the strip in contact with the roller for inserting the strip.
    The path is provided with a conveyor belt for outputting the strip when folded.
    The conveyor belt is mounted for movement, and its speed is greater than the feed rate of the folded strip into the track.
    The device is equipped with a means of adjusting the height and width of the transport track | Ta, made in the form of your plates,
    0 with the possibility of adjusting the distance of the shsh shsh ,,:: -
    Gadgets & o knotted deformn skwavid zasob:, - | Asyolozhennym before ya rm Overlay glue and provide “1 double dow; & with completed
    five . on the surfaces of the protrusions and indentations for forging the transverse lines of the serifa gf than the longitudinal components of the protrusions and recesses are located along this strip.
    0
    The roller should be fixed on them with protrusions and grooves,
    One of the rollers is connected to the engine, and the other roller is mounted on 5 against a new vadnnka, with the protrusion of one roller entering the corresponding recesses of the other roller.
    The first roller is mounted for rotation, with its circumferential
    0 speed exceeds the peripheral speed of the rollers of the deformation unit.
    The device is provided with a photovoltaic device for detecting the presence of a band in the device.
    The device is equipped with
    S to determine spacing when feeding strips.
    The means for determining the intervals is in the form of a liquid spray. It is made with the possibility of periodic adjustment of the marking strip.
    The air filter is designed as a parallelepiped.
    five
    FIG. 1 shows a diagram of an apparatus for carrying out the method} in FIG. 2 - strip deformation node; in fig. 3 is a front view in section of FIG. 2; in fig. 4 is a front view of FIG. 2f in FIG. 5 - partially in
    0 isometric check for glueing; in fig. 6 - partially in isometric sectional section of the feed strip of filter material; in fig. 7 is a partial isometric view of the folding unit.
    5 in accordion; in fig. 8 is a partially sectioned front view of the assembly for folding the band into an accordion; in fig. 9 13 - in isometric pieces of strips of filtering material at various stages of the method; in fig. 14 in isometrine air filter manufactured by this method.
    The device contains a ram 1; a bobbin 2 of a strip 3 of filtering material is put on it, which is, as a rule, filter paper. The strip 3 is fed through the assembly, 4 of the feed control and possible pre-treatment, the strip deformation assembly 5, the assembly 6 for applying glue to the strip 3, the assembly 7 for feeding the strip 3, assembly 8 for folding the strip into the accordion, as well as assembly 9 for output and transport strip 3, a curved accordion, made in the form of a conveyor belt (tape). Node 4 contains a frame 10 on which channel 11 is supported, through which strip 3 slides, it includes front and rear guides 12. The means for determining intervals 13 is installed at the entrance to channel 11 and is designed as a spray gun with a cage 14, which is at a short distance from the strip 3 and is intended to spray a liquid, such as ink, onto the strip 3 to obtain marks on it indicating the predetermined strip delivery intervals. The photovoltaic device 15 is located at the exit of the channel 1 and includes, for example, a photoelectric element designed to determine the presence or absence of a strip 3 in this area at the exit where the guide 12 is located. . . The deformation unit 5 rests on the frame 16, which is equipped with water engines (not shown), intended both for the deformation unit 5, and for the supply unit 7. The deformation unit 5, before which the guide chute 17 runs The height, resting on frame 18, located on frame 16, has two parallel rollers 19 and 20 (Fig. 2), which are located, touching one another, and their axes are located in a vertical plane perpendicular to the plane of passage of the strip 3, which pass between rollers 19 and 20. Ko gical roller 20 supported on bearings 21 located in end plates 22, which form the frontal nye node side. 5. The assembly 5 also includes two plates 23 - the upper and the lower, they limit the space of the assembly 5, the lower plate simply connecting with the plates 22, and the upper plate connecting with the plates 22 on a hinge, which carries two elements in which according to clIpniki .21 roller 19, so that roller 19 can be raised. The lower roller 20 is driven in rotation by a toothed belt 24, which is mounted on a pulley attached to the end of the roller 20 on the outside of the plate 22. The belt (belt) is driven by a motor (not shown) located in the frame 16. The shaft of the said engine is equipped with a pulley spokes, which in combination with a photovoltaic device provides a measurement of the speed of rotation of the roller 20 and thereby the gap through which the strip 3 is passed. The device 25 contains gears 27 - 29 successively engaged with a gear wheel 26, with than the last one is put on one end of the upper roller 19 and secured by a pin 30 located between adjacent elements 31 of the plate 32 connected to the roller 19. The angular position of the gear 29 relative to the roller 19 can be set using the elements 31. In the synchronizer 25 there are bolts 33 - 35, designed to set the position of the toothed 27 and 28 and eliminate the gap. Several elements in the form of parallelepipeds 36 are usually installed e-distantly in the central part of the rollers 19 and 20, so that their outer surfaces are behind the face with the outer surface of the central part of the rollers 19 and 20. The elements 36 in the central part have a longitudinal protrusion 37 or recess 38 The radars are parallel to the axis of the rollers 19 and 20 and are located on the rollers 19 and 20 in such a way that the element with the protrusion 37 alternates with the element with the cavity 38. This occurs relative to the elements 36 on another roller, the arrangement of these elements , and they are synchronized by the device. . 25, so that when elements 36 relating to & rollers 19 and 20. (FIG. 3) are brought into touch, the protrusion 37 of the element. 36 interacts with the cavity 38 of the element 36 of another roller. Several protrusions 39 in the form of parts of a circle are arranged between inter-adjacent elements 36, together with corresponding cavities 40 they are made on the lateral surface of the rollers 19 and 20 in their central part. The protrusions 39 and valleys 40 alternate along the generatrix of the rollers 19 and 20 (Fig. 2), in the cross section of the rollers 19 and 20 (Fig. 3) the protrusions 39 are only of one roller, and the cavities 40 are on another roller, these cavities interact in In the angular direction with the protrusions 39, the node for applying the adhesive 6 contains a container 41 in which the adhesive is contained and is heated to an acceptable temperature, it has two tubes 42 extending from the container 41, their ends (φ 5) are connected to two distribution nodes 43, equipped with two nozzles 44, located at a small distance Stand Yad band 3 and facing the side edges of the strip 3. Distribution nodes 43 are mounted on the rod 45 in such a way that they can slide along it to set their longitudinal position ao strip width 3. The rod 45 rests on the rack 46, which allow you to adjust the height of the stem 45, and thereby the distribution units 43. The supports 46 are fastened to the frame 47 located on the frame 16. The frame 47 has a longitudinal opening 48 in which the distribution nodes 43 are located, below which the tray 49 is located is intended to collect adhesive to The hub was not imposed on strip 3. Feed assembly 7 (FIG. 6) contains a cylindrical roller 50, the ends of which are supported on bearings 51 in end plates 52, to which plates 53 and 54 are fixed above and below. In end plates 52 there are two rectangular cavities 55 in which corresponding elements 56 can slide in the vertical direction when setting the position of the adjusting elements 57, and the elements 56 support end bearing bearings. 58. for the shaft 59, on the central part of which there are discs 60 spaced apart along its length, their diameter is such that they contact the surface of the cylindrical shaft 50. One end of the cylindrical roller 50 withdraws from the plate 52, at this end a pulley 61 is fixed wearing a toothed belt 62, driven by a pulley 63, repaired at the end of the shaft-64, connected to the gearbox 65, to which the output shaft 66 of the electric motor 67, installed in, fits. frame 1 The assembly for folding the band into an accordion .8 (Fig. 7 and B) contains a support plate 68 mounted on the frame 16, an element 69 is fastened under the plate, extending in a slot 70, made in the upper surface of the frame 16. The element 69 is threaded A new bore that includes a jtBoc tovik with a thread 71 connected to a handle 72 located outside the frame 16. Two parallel front plates 73 are mounted on top of the base plate 68, below them are installed two elongated plates 74, to the ends of which four vertical plates are attached columns 75 (have a right-handed and l side cutting at the top and bottom of the x). Two transverse plates 76 are installed in. the top of the .i75 columns, using corresponding threaded holes to the side surfaces of these plates, slides 77 are fixed. In each plate .76 a longitudinal slit 78 is burst, in which the supporting elements 79.dl of the upper plsyut 80 guides are located, which are located in the direction of sliding lanes 3, plastic. They have a front bevel 81, they can be moved and fixed. Two transverse plates 82, parallel to the upper transverse plates .76, are mounted on the lower portions of the columns 75 by means of corresponding threaded holes similar to the plates 76, they are fitted with several lower guide plates 83, the same as the upper guide plates 80. The The end of the threaded column 75 is fastened with a handle 84. An asterisk 85 is put on the lower threaded end of the column 75, through which a chain 86 passes, which grasps around the perimeter the corresponding stars 87 installed on the lower threaded parts of the other three onn 75. Front plates 73 there are two openings for the rods 88 that are inside the plates 73 are secured to the corresponding longitudinal rod 89, limiting the side of curled strip 3 bellows material. Cylindrical bosses 90, intended to fix the position of the rods 88, are put on them outside relative to the plates 73. The rear ends of the lower guide plates 83 are connected to a roller 91 on which a sleeve 92 is attached, welded to the plate 93. A tension spring 94 is installed between a pin 95, fastened under the lower guide plate 83, and a pin 95, fastened under the plate 93.. . The output and transport unit 9 includes a conveyor belt 96, which runs around two end rollers 97, one of which is driven by an electric motor (not shown) located / for example, in a bed 98 mounted on frame 99 of node 9. Frame 99 is attached to the uprights 100 is adjustable and can be moved using the rod 101. In the frame 99 there is a recess 102 defining the region of movement of the harmonic-folded filter media. At the end, the notch 102 has. The section 103, rounded up, on which the accordion-folded filtering material rests, which is located on the upper plate 104, mounted on frame 99 above recess 102. The installation control panel 105, which includes devices designed for setting and adjusting: parameters, as well as analog and digital indicator elements along with emergency lighting lamps. Cabinet 106 has other equipment necessary for the operation of the plant. VcTpoftCtBO works as follows. The bobbin of the filtering material 1Pi1, 1) is arranged in such a way that the strip 3 is held tightly with the help of a tension roller, passes under the nozzle 14 of the means 13, then through the feed adjustment kandl 11, into which in the case of optional. During the passage, hot air can be supplied, after which the strip passes. under the device 15, which fix. There is no band 3. and in the case of a lack of band, due to its rupture or for some other reason, it beeps and stops the installation. The strip 3, which is a smooth flat sheet, after passing the guide groove 17 reaches the deformation unit of the strip 5. Then the sheet passes between the rollers 19 and. 20, which due to the interaction of the protrusions 37, and the recesses 38 form longitudinal bending lines 107 on the sheet 108 facing alternately to opposite sides of the sheet 108 along it for not (Fig. 10). The protrusions 39 and the cavities 4b of the rollers 19 and 20 also made The protrusions 109, which alternate with the recesses 110, on the sheet 108, are located within each zone located between two bending lines 107. At the exit of the node 5, the sheet 111 has longitudinal bending lines 107, as well as the protrusions 109 and. recesses 110, thereafter, the sheet 111 passes under the nozzles 44 of the distributing nodes 43, which are fed to the side edges of the sheet 111 two bands 112 of heated adhesive, which is usually melted by heating (polyester is used as the base) and overlays 111 at a certain temperature, for example 200 ° C. After that, a sheet 111 with adhesive strips 112 reaches the supply unit 7 and enters it with a roller 50. A disk 60, which does not interact with Vadik 50, contacts sheet 111 with it, and the disk 60 is located in such positions in order to contact the sheet 111 in its flat areas, where the protrusions 109 and the recesses 110 and the adhesive strips 112 are missing. I After passing through the feeding station 7, the sheet 111 reaches the node for folding the band into the accordion 8 and the strip 113 of the filtering material folded by the accordion is intersected by the NIMI 80 and lower 83 guide plates and moves at a speed that is much lower than the 111 sheet output speed 111 from the feeding unit 7. The band 113, folded with an accordion, causes in the folding unit 8 a significant slowdown in the progress of the sheet 111. Therefore, also because of the presence of longitudinal bending lines 107, made on the sheet, it can be bent alternately in one or other directions (Fig. 12). When the bending is complete, the adjacent edges of the strip 3 are in contact (Fig. 13) and are joined by adhesive strips 112, forming adjacent pockets 114 fastened along the upper edge and also along the side edges by strips 112 of adhesive substance. Since the accordion-folded strip 113 is fed through the folding unit 8 essentially under the action of the sheet 111 ,. which is pushed by the feeding unit 7, the folded band is compact for almost the entire time it passes through the node 8, i.e. in a few seconds. Usually this time is sufficient to complete the drying of the adhesive. The rod 89 also presses the folded strip .113 from the side. At the rear ends of the guide plates 80 and 83, the strip 113, which now has pockets 114, slides onto the plate 93 and reaches the conveyor belt 96, through which it passes through the rounded section 103 to the top plate 104. At this point, the strip 113 is cut into pieces in each of which there are a certain number of pockets 114, and the cutting is carried out on marks, for example ink, which were applied in advance by means of the attachment of the means 13, the tool 13 is folded, periodically marks the mark on a certain length of the strip 3, which is passed from tvetstvuyuschim number of pockets 114, control is effected by a control signal from a device associated with a photoelectric sensor connected to a pulley having spokes driven in rotation by motor assembly 5 deformed. The speed of rotation of the spoke pulley is proportional to the speed of rotation of the rollers 19 and 20, and hence the feed speed of the strip 3. The strip pieces cut off on the plate 104 are then embedded in the usual forms, into which the corresponding material is filled in a liquid form, which forms during hardening sealing gasket 115 (FIG. 14) for the upper edge of the rectangular shape of the air filter. The circumferential speed of the centrifugal roller 50 knot..a of feed 7 is set a little more than the peripheral speed of rollers 19 and 20. of the forming unit 5 in order to cause a slight slippage of the strip 111 of the OTHOCHiefibHO roller 50, providing tension to the sheet. The speed of movement of the conveyor belt 96 is set such that the feed speed of the accordion-folded strip 11 on the belt 96 is slightly greater than the speed of passage of this strip through the folding unit 8, while providing some space for pockets 114, which are already permanently glued along their side edges.
    edges.
    I
    Initially, various mechanical adjustments can also be made, for example, adjustment of the device 25 for synchronizing speeds and the relative angular positions of the rollers 19 and 20, giving the best interaction between the elements 36. The distance between the rods 89, the distance between the upper direction plates 80 and the lower ones is also adjusted. the guide plates 83 of the folding unit 8 in accordance with the height of the pockets 114 (defined by the selected type of rollers 19 and 20), the adjustment is carried out using a handle 84 which is The threaded column 75 is connected to which it is connected, while other columns 75 are also rotated using sprockets 85 and 87 and chains 86. Thus, appropriate approximation and removal of guide plates 80 and 83 can be made relative to each other. The dashed lines show another, alternative embodiment of the direction of the plates 80 and 83 (Fig. 8). The corresponding adjustment of the longitudinal position of the folding unit 8 is performed by a handle 72, a threaded shank 71 which cause the element 69 and the base plate 68 to slide. The plate 93 provides a link to the conveyor belt 96t, the height of which can be adjusted by means of the uprights 100, and the rod 101 adjusts its position.
    Thus, this method has the advantage, since there is practically no hot glue. decreases in volume during drying, in the process of applying a substance applied to the edges of a strip of filter material, only one stage of folding with an accordion is required for the strip in order to obtain side pockets that are sealed sideways. At the same time, the adjacent edges of the strip, on which there is an adhesive substance, are simultaneously directed towards each other and an additional operation is not required for applying pressure to the edges, therefore this method is faster and more economical. The band folded by the accordion may be brought into a compact state in the folding unit 8 within a few seconds to ensure gluing of the side edges of the pockets, but this step is carried out in the process of advancing the strip 113 and therefore essentially without decreasing the productivity.
    The Deforming unit 5, in which longitudinal bending lines 107 are formed on the flat sheet 108, also prepares the sheet for its subsequent bending in the node 8, the protrusions 109 and the recesses 110 prevent the adjacent walls of the pocket 114 from overlapping one another. located at some distance from one another, the passage of the medium to be filtered.
    In addition, the shape of the air filters can be changed. For example, instead of a parallelepiped, they can have an annular shape, and the filter can be used to filter the pouring medium.

    Chg
    Jf
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    52
    FIG. 6
    权利要求:
    Claims (17)
    [1]
    1. A method of manufacturing air filters, comprising folding into an accordion a strip of filter material with the formation of adjacent pockets interconnected along the upper edge and glued along the transverse edges, then cutting this strip into segments containing a certain number of pockets, and forming a gasket by crimping the perimeter of the upper edges of these segments, characterized in that, in order to reduce the cost of manufacturing the filter and simplify the manufacturing method, before folding on the edges of the polo We apply hot glue and, when folding, connect the adjacent edges of the strip, and before applying the adhesive, the bands of the filter material are continuously deformed to form fold lines along the transverse lines, as well as to form protrusions and indentations elongated along the length of the strip and holding pockets facing one another on the wall one from the other, and folding the strip into an accordion is carried out with a significant reduction in the feed speed of the strip by acting directly on the fold line of the strip, after folding VOCs it is moved by means of the transport path, and the folded strip is maintained in a compressed state.
    [2]
    2. The method of pop. ^ characterized in that the application of glue on the edges of the strip of filter material is carried out at a temperature of about 200 ° C.
    [3]
    3. A device for manufacturing air filters, including a node for folding a strip of filter material c. an accordion with the formation of adjacent pockets connected along their upper edges and glued along the transverse edges, characterized in that it is equipped with a glue application unit and a strip feeding unit in the accordion folding unit installed in front of the accordion folding unit, the unit for folding the strip is equipped with many guides that form the transport path for complex. pockets in the strip, and the height and width ·· on the path are equal to the height and width of the pocket, respectively.
    [4]
    4. The device according to claim 3, wherein the assembly for applying glue contains at least one container, an adhesive heater; and two tubes leading to two nozzles installed with overlapping edges; strips of filter material.
    [5]
    5. The device according to paragraphs. 3 and 4, characterized in that the feed unit is provided with a motor driven roller for inputting the strip and a shaft located parallel to it with at least one roller mounted on it, located on the strip in the zone of `` no glue and holding the strip in contact with the roller to enter the strip.
    [6]
    6. The device pop. 3, characterized in that the path is provided with
    SU „.Ί 055316 wives with a conveyor belt for the output of the strip when folded.
    [7]
    7. The device pop. 6, characterized in that the conveyor belt ; installed with the ability to move. moreover, its speed is greater than the feed rate into the path of the strip folded into the pockets.
    [8]
    8. The device according to paragraphs. 3-7, r. The fact that it is equipped with a means for regulating the height and width of the transport path, made in the form of a pair of plates installed with the ability to control the distance between them.
    [9]
    9. The device according to paragraphs. 3-8, characterized in that it is equipped with a strip deformation unit located in front of the glue application unit and provided with two rollers with protrusions and recesses made on the surfaces to form transverse bending lines, wherein the longitudinal components of the protrusions and recesses are located along the length of the strip. •
    [10]
    10. The device according to p. ' 9, characterized in that the rollers are equipped with elements mounted on them with protrusions and recesses.
    [11]
    11. The device according to paragraphs. 9 and 10, it is distinguished by the fact that one of the rollers is connected to the engine, and the other roller is installed opposite the first roller, and the protrusions of one roller enter the corresponding recesses of the other roller.
    [12]
    12. The device according to paragraphs. 9,11, characterized in that the first roller is mounted for rotation, and its peripheral speed exceeds the peripheral speed of the rollers. Deformation site.
    [13]
    13. The device 'according to paragraphs. 3 to 12, characterized in that it is equipped with a photovoltaic device for detecting the presence of a strip in the device.
    [14]
    14. The device according to paragraphs. 3-13, characterized in that it is equipped with a means for determining the intervals when applying the strip.
    one
    [15]
    15. The device according to claim 14, wherein the means for determining the intervals is made in the form of a liquid atomizer.
    [16]
    16. The device according to p. 14, wherein the means for determining the supply intervals is arranged to periodically adjust the strip marking.
    [17]
    17. The air filter, characterized in that it is made in the form of a parallelepiped.
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    同族专利:
    公开号 | 公开日
    IT1119517B|1986-03-10|
    ES8203020A1|1982-03-01|
    IT7969297D0|1979-11-28|
    YU293480A|1983-12-31|
    DE3043232A1|1981-06-19|
    FR2470630B1|1985-04-26|
    BG35185A3|1984-02-15|
    PL228144A1|1981-07-10|
    ES497174A0|1982-03-01|
    FR2470630A1|1981-06-12|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    CH463940A|1965-09-21|1968-10-15|Luwa Ag|Method and device for the manufacture of filter inserts|
    FR1529632A|1967-02-08|1968-06-21|Saint Gobain Techn Nouvelles|Improvements to filter cells and their manufacturing process|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    IT6929779A|IT1119517B|1979-11-28|1979-11-28|PROCEDURE TO CREATE AIR FILTERS SYSTEM FOR THE REALIZATION OF SUCH PROCEDURE AND RELATED FILTERS OBTAINED|
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