SU900923A1 - Method and apparatus for producing filter elements - Google Patents

Description

The invention relates to the processing of materials by pressure, in particular, to equipment for the manufacture of cartridge filters, for example for the purification of pool waters of reactors of nuclear power plants.

A known method of manufacturing filter elements by winding onto the frame, profiling and subsequent cutting £ 1].

The disadvantage of this method is that its performance is small.

In addition, a known method of manufacturing a profiled wire by deformation, subsequent cutting and weighing £ 2].

The disadvantage of this method is its low productivity.

Closest to the proposed is a method of manufacturing filter elements and a device for its implementation by winding onto a hollow frame a pre-deformed wire £ 3] ·

The disadvantage of this method is that its performance is small.

⁵ The purpose of the invention is to increase productivity.

This goal is achieved by the fact that in the known method of manufacturing filter elements by winding a pre-deformed wire onto a ^10- hollow frame, the wire is deformed by simultaneously flattening and calibrating it, and winding is done in tight many ¹⁵ carbon turns on a perforated frame.

In addition, in the known device for implementing the method, comprising a filter forming mechanism mounted on a bed with guides, consisting of a spindle cartridge, a tailstock, a guide, flatting and calibrating rollers and a stacker pivotally mounted in the guide rails of the frame with the possibility of moving along the hollow frame along by means of a lead screw, the stacker consists of a spring-loaded clamping 5th bracket, a guide roller and a spring-loaded lever on which the guide roller is mounted, and the flaking and calibrating rollers are fixed to the stacker by 10 axes and placed in front of the guide roller.

In FIG. 1 shows the device

for implementing the method; on the FIG. 2- Joid A in FIG. 1; in FIG. 3 - view B fifteen in FIG. 1; in FIG. 4 - section Bb on FIG. 2; on the FIG. 5 ”cut Gg on the FIG. 3; on the FIG. 6 - section dd on the - FIG. 4; on the FIG. 7 cut HER on the FIG. 4. ί 20

Perforated frame 1 is installed in the spindle chuck 2 of the lathe and is supported by the center 3 of the tailstock. A case 59 is mounted on the stacker 4 on which a wire deformation unit 2S is mounted, consisting of a calibrating roller 6 and a conditioning roller 7. The wire stacker 4 consists of a spring-loaded clamping bracket. 8, of the guide rod 9 and of the spring-loaded lever 10, and the rollers are fixed on the axles 11, and there is a lead screw 12.

When the cage rotates, the wire is wound onto the cage, passing through a preliminary deforming assembly, changing its cross section to obtain the desired profile. Since the rollers 6 and 7 are made idle, the plastic deformation force <о arising in the deformation unit ensures the tension of the wire in the area from the rollers 6 and 7 to the frame and the snug fit of the winded wire to the protrusions of the frame. 45

The stacker supports the wire until the moment of bending through the protrusion of the frame, since the bending of the wire goes around the axis X-X of the maximum moment of inertia of the cross section. 5 ©

To ensure the laying of coils without a gap, the thickness of the deformed wire is made equal to the nearest winding step available on a serial lathe. 55

According to the proposed method, cartridge filtering elements are made of steel 12Kh18N1OT with a diameter of 42 mm and a length of the winding part of the frame 1020 mm with a filter slit width of 0.07 + 0.02 mm. For winding, a standard round wire with a diameter of 0.8 mm is used from 12Kh18N10T steel, which is deformed during winding to a thickness of 0.69 ± .0.01 mm to obtain recesses of 0.08x4.2 mm in size and a frequency of 5.2 mm. Such deformation occurs with a wire tension of 9 and 9.5 kgf, which ensures a snug fit of the wire to the frame.

The present invention greatly simplifies the manufacturing technology of cartridge filtering wire elements and reduces labor costs in a production environment by more than 3 times.

Claims (3)

The invention relates to the processing of materials by pressure, in particular, to equipment for the manufacture of cartridge filters, for example, for cleaning the pool waters of reactors for atomic power plants. A known method of fabricating filaments by winding onto a roll forming frame and then cutting P1. The disadvantage of this method is that its performance is small. In addition, a method for manufacturing a shaped wire by deforming, subsequent cutting and weighing C23 is known. The disadvantage of this method is its low productivity. The closest to the present invention is a method of manufacturing filter elements and a device for its implementation by winding pre-deformed wire onto a hollow frame. A disadvantage of the known method is that its productivity is low. The purpose of the invention is to increase productivity. This goal is achieved by the fact that in the known method of manufacturing filter elements by winding pre-deformed wires onto a hollow frame, the wire is deformed by simultaneously flattening it and calibrating it, and winding is carried out in dense polygonal turns on a perforated frame. In addition, in the known apparatus for carrying out the method comprising a filter forming mechanism mounted on a frame with guides, consisting of a spindle cartridge, a tailstock, a guide, flattening and calibrating rollers and a stacker hingedly placed in guide frames with the possibility of moving along hollow frame by means of the lead screw, the stacker consists of a spring-loaded clamping bracket, a roller guide and a spring-loaded lever on which a guide roller is mounted, and Latching and calibrating rollers are fixed on the stacker by means of axes and are placed in front of the guide roller. FIG. 1 shows a device for the implementation of the method; in fig. Yed A in FIG. one; in fig. 3 is a view B in FIG. one; in fig. A - section BB in FIG. 2; in fig. 5 a section of GGD in FIG. 3; in fig. 6 - section DD nafig. four; in fig. 7 shows section EE of FIG. k. The perforated frame 1 is installed in the spindle chuck 2 of the lathe and is supported by the center 3 of the tailstock. On the shelf 1 there is a housing 5 on which the wire deformation assembly is mounted, consisting of a calibrating roller 6 and a flattening roller 7. The wire paver 4 consists of a spring-loaded clamping bracket. 8, the guide roller 9 and the spring-loaded lever are 10, and the rollers are fixed on axles 11, and there is a lead screw 12. When the frame rotates, the wire is wound on the frame, the passage is preliminary deforming the node, changing it across profile Since rollers 6 and 7 are filled with idle blades, the plastic deformation force arising in the deformation unit provides tension on the wire from the rollers 6 and 7 to the frame and tight fitting of the wire to the framework projections. The stacker supports the Wire until it is bent over the protrusion of the frame, since the bending of the wire goes around the axis X-X of the maximum moment of inertia of the cross section. To ensure that the coils are laid without a gap, the thickness of the deformed wire is made equal to the nearest coiling step, which is on a serial lathe. According to the proposed method, cartridge wire elements are made of steel 12X18H10T 34 with a diameter of 2 mm and a length of the winding part of the frame of 1020 mm with a filter width of 0.07 + 0.02 mm. For winding, a standard round wire with a diameter of 0.8 mm of steel 12X18H10T is used, which is deformed during the winding process to a thickness of 0.69 dbO, 01 mm with the formation of recesses of 0.08x, 2 mM and a periodicity of mm. Such deformation occurs when the tension of the wire is 9 and kgf, which ensures a tight fit of the wire to the frame. The present invention greatly simplifies the technology for the manufacture of narpoHHbtx wire filter elements and provides a reduction in labor costs by more than 3 times in production conditions. Claim 1. Method of manufacturing filter elements by winding a pre-deformed wire on a hollow frame, characterized in that, with a chain of productivity, the deformation of the wire is carried out by simultaneous | its flattening and calibration, and winding is made |: 1 dense polygonal turns on a perforated frame. 2. A device for carrying out the method according to claim I, comprising a filter forming mechanism mounted on a frame with guides, consisting of a spindle cartridge, a tailstock, a guide, flattening and calibrating rollers, and a stacker hingedly placed in the guides of the frame The ability to move along the hollow frame by means of the lead screw is distinguished by the fact that, in order to expand the technological capabilities, the stacker consists of a spring-loaded clamping bracket, a guide rail and springs nnogo lever, which is mounted on the guide roller, and crimping and sizing rollers are fixed on the stacker by the axes and are arranged in front of the guide roller. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 665973, cl. 8 21 F 13/00 ,, 1976. 2. Author's number ZYEZO, CL. 1970. 59009236 USSR certificate 1 3. USSR Auto-equipping B 21 F 13/00, No., c. B 21 F 27/18, 1956. fig.G, Type A