CN209875132U - Wire-wrapped screen pipe and wire-wrapped screen pipe forming device - Google Patents

Abstract

The utility model relates to a wire-wrapped screen pipe and wire-wrapped screen pipe forming device, it is before carrying out the wire-wrapped coiling to the screen pipe base pipe, form the wire-wrapped boss on the side of wire-wrapped in advance, so that during the wire-wrapped coiling, the wire-wrapped boss side facade of wire-wrapped tightly laminates the side facade of adjacent wire-wrapped or the side facade of two adjacent wire-wrapped bosss closely laminate, it restricts the clearance between the screen pipe wire-wrapped through the wire-wrapped boss, consequently under the condition of guaranteeing wire-wrapped boss precision, the wire-wrapped screen pipe of high accuracy just can be realized to the numerical control equipment of adoption ordinary precision grade.

Description

Wire-wrapped screen pipe and wire-wrapped screen pipe forming device

Technical Field

The utility model relates to a wire-wrapped screen pipe field specifically relates to a wire-wrapped screen pipe and wire-wrapped screen pipe forming device.

Background

As a filtering unit for separating solid from liquid and solid from gas, a wire-wrapped screen pipe and related products thereof have been widely used in industries requiring two-phase substance filtering through physical screening, such as environmental protection treatment, petrochemical industry, water treatment, food and beverage manufacturing, paper making, automobiles and other industrial fields, and particularly, with the improvement of environmental protection concept, the application of physical filtering units is increasing day by day.

The traditional wire-wrapped screen pipe is formed by assembling and welding a perforated base pipe and a wire-wrapped screen sleeve. The existing wire-wound screen pipe forming equipment is similar to a numerical control lathe and generally comprises a machine tool, a wire feeding straightening mechanism, a wire-wound section drawing cold rolling forming mechanism, a numerical control wire-wound coiling mechanism, discharge spot welding equipment and a motion control system. The machine tool is provided with a main shaft C capable of rotating, when the wire winding operation is carried out, the wire winding base pipe is arranged on the main shaft C of the machine tool and is driven by the main shaft C to rotate, and the wire feeding straightening mechanism is arranged on a large slide carriage of the machine tool and can linearly move along the Z axis along with the large slide carriage of the machine tool. The Z axis and the main axis C of the screen pipe wire-winding machine tool are driven by servo motors, namely the C axis and the Z axis can be directly programmed and controlled by G codes to form the spiral motion required by screen pipe wire winding.

The wire-wound sieve tube forming equipment drives a sieve tube base tube and longitudinal ribs (warps, the cross-sectional shapes and the sizes of the warps are generally consistent with those of the wefts) uniformly distributed on the base tube along the circumferential direction to rotate by a fixed shaft through a servo motor of a main shaft C, and the discharge spot welding equipment performs pressurization discharge on the contact part of the delivered transverse wire-wound (wefts) and the longitudinal ribs (warps) uniformly distributed on the sieve tube base tube for welding. Meanwhile, a wire feeding mechanism fixed on the machine tool large slide carriage longitudinally moves along the Z-axis direction along with the machine tool large slide carriage, the speed of the wire feeding mechanism longitudinally moving along the Z-axis is in a certain proportion to the rotating speed of the main shaft C (the proportion is calculated according to an Archimedes spiral motion formula), so that the wefts are distributed in an Archimedes spiral line along the Z-axis longitudinal rib direction according to a certain thread pitch, and when the lift range of the Archimedes spiral line (namely the thread pitch of the spiral line) is equal to the width of the wound wire plus the clearance (also called seam width) of the wefts, the wire wound sieve tube with a certain clearance between the wefts can be formed. The size and the error of the gap are the most important quality judgment indexes in the screen pipe forming production.

When the wire-wound sieve tube forming equipment is used for producing high-precision sieve tube products, the requirements of qualified products are often difficult to achieve. If the clearance of the sieve tube is 0.05mm and the clearance tolerance is +/-0.005 mm, the precision is still difficult to achieve even if a high-precision machine tool is utilized, the main reason is that a sieve tube base tube needs a large torsional moment when rotating, a wire wrap is pulled to pass through a straightening and cold-drawing forming mechanism, and a large horizontal pulling force is applied to the sieve tube base tube at the moment, so that the long and thin sieve tube base tube is subjected to large bending deformation, and the precision of the sieve tube clearance is influenced. When the wire feeding faucet is at different Z-axis positions, even if the pulling force required by cold drawing is consistent, the positions acting on the sieve tube base tube are inconsistent, so that the bending deformation of the sieve tube base tube is inconsistent, that is, the change of the wire winding gap generated by the inconsistent bending deformation of the sieve tube base tube is a nonlinear change, and the error of the sieve tube gap is difficult to reduce by adopting a theoretical compensation method. In addition, during cold-drawing forming, because the diameter of the original wire wrap has a certain error, the force for pulling and straightening the wire wrap and cold-drawing forming is also a variable force, and the bending deformation of the base pipe of the sieve pipe can also be randomly changed, so that the sieve pipe meeting the precision requirement cannot be produced by only improving the precision of the machine tool.

In view of the above, the market is in need of a new forming device and method for wire-wrapped screen pipe, which can efficiently produce high-precision narrow seam width and small seam width tolerance at any position of the screen pipe.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a wire-wrapped screen pipe product with high-accuracy clearance.

The first scheme is as follows:

the utility model provides a wire-wrapped screen pipe, includes screen pipe base pipe and the wire-wrapped of mode coiling on the screen pipe base pipe outer peripheral face with the Archimedes spiral, the wire-wrapped boss that a plurality of intervals set up is formed to a side of wire-wrapped, and each wire-wrapped boss all has the first side facade of perpendicular screen pipe base pipe outer peripheral face, is the second side facade with first side facade parallel arrangement on the opposite another side of this side, and the first side facade of wire-wrapped boss on the wire-wrapped is laminated along screen pipe base pipe axis direction with the second side facade of adjacent wire-wrapped, and the convex height of this wire-wrapped boss equals with the wire-wrapped clearance of wire-wrapped screen pipe.

The second scheme is as follows:

the utility model provides a wire-wrapped screen pipe, includes screen pipe base pipe and winds the wire-wrapped on the screen pipe base pipe outer peripheral face with the mode of Archimedes spiral, its characterized in that: the opposite two side surfaces of the wire winding are respectively provided with a plurality of wire winding bosses which are arranged at intervals, each wire winding boss is provided with a side vertical surface which is vertical to the peripheral surface of the base pipe of the screen pipe, the side vertical surfaces of the wire winding bosses and the side vertical surfaces of the wire winding bosses of the adjacent wire winding are attached along the axial direction of the base pipe of the screen pipe, and the sum of the protruding heights of the two wire winding bosses which are attached to each other is equal to the wire winding gap of the wire winding screen pipe.

The utility model also provides a wire-wrapped screen pipe forming device to realize the manufacturing of wire-wrapped screen pipe of high accuracy.

The specific scheme is as follows:

the utility model provides a wire-wrapped screen pipe forming device, is including the lathe that is used for supporting the screen pipe base pipe and drives this screen pipe base pipe rotation, send a aligning gear with the wire winding alignment, form the wire winding cross-section forming mechanism of specific shape with the cross-section of wire winding, weld the welding mechanism of wire winding and be the wire winding coiling mechanism of Archimedes spiral winding on the screen pipe base pipe outer peripheral face with the wire winding the rear end of wire winding cross-section forming mechanism still is provided with boss impression forming mechanism, and this boss impression forming mechanism has an impression space and the impression that supplies the wire winding to pass through, and this impression can exert pressure to the wire winding through this impression space to form the wire winding boss of protrusion side on one side of wire winding or relative both sides face.

The utility model provides a wire-wrapped screen pipe and forming device compares with prior art and has following advantage: the utility model provides a wire-wrapped screen pipe forms the wire-wrapped boss in advance on the side of wire-wrapped before carrying out the wire-wrapped coiling to the screen pipe parent tube to when making the wire-wrapped coiling, the wire-wrapped boss side facade of wire-wrapped hugs closely the side that closes adjacent wire-wrapped or the side facade of two adjacent wire-wrapped bosses closely laminates, it restricts the clearance between the screen pipe wire-wrapped through the wire-wrapped boss, consequently under the condition of guaranteeing wire-wrapped boss precision, the wire-wrapped screen pipe of high accuracy just can be realized to the numerical control equipment of adoption ordinary precision grade.

Drawings

FIG. 1 shows a schematic view of a wire-wrapped screen forming apparatus.

Fig. 2 shows a schematic diagram of the movable table and the wire feeding straightening mechanism, the wire winding section forming mechanism and the boss stamping forming mechanism which are arranged on the movable table.

Figure 3 shows a schematic view of a filament winding of a particular cross-section formed via a filament winding cross-section forming mechanism.

Fig. 4 shows a schematic view of a boss stamp forming mechanism.

Figure 5 shows a schematic view of the formation of winding bosses on opposite sides of the winding.

Figure 6 shows a schematic view of the formation of a winding boss on one side of the winding.

Figure 7 shows a schematic of the wire wrap wound around a screen base pipe.

Fig. 8 shows an enlarged schematic view at a in fig. 7.

Detailed Description

To further illustrate the embodiments, the present invention provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments. With these references, one of ordinary skill in the art will appreciate other possible embodiments and advantages of the present invention.

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention. In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise. In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art. In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The present invention will now be further described with reference to the accompanying drawings and detailed description.

Example 1

As shown in fig. 1, the present embodiment provides a wire-wrapped screen forming apparatus, which includes a machine tool 10, a wire-feeding straightening mechanism 20, a wire-wrapped section forming mechanism 30, a welding mechanism 40, a wire-wrapped coiling mechanism 50, and a motion control system.

The machine tool 10 has a power member 110 for driving the screen base pipe 60 to rotate and a supporting device 120 for supporting the screen base pipe 60 without interfering with the rotation of the screen base pipe 60. In this embodiment, in order to facilitate the control of the power member 110 on the rotation speed of the screen base pipe 60, the power member 110 preferably employs a servo motor, the pipe supporting device 120 is a support frame, and the screen base pipe 60 is supported by the support frame and is in driving connection with the servo motor, and the pipe supporting device 120 in this embodiment employs a support frame, but is not limited thereto, as long as the same functional mechanism can be realized.

The conventional wire winding is usually coiled into a coil shape for convenience of transportation, storage and packaging, so the wire winding screen forming device in this embodiment directly adopts the wire winding 70 in a curved coil shape to wind, and therefore the wire feeding straightening mechanism 20 straightens the fed wire winding 70 in a curved coil shape (generally, a stainless steel wire with a circular cross section) by the straightening mechanism to obtain a straight wire winding (in this case, the interface shape of the wire winding is circular).

In this embodiment, referring to fig. 2, the wire feeding straightening mechanism 20 includes a vertical straightening mechanism 200 and a horizontal straightening mechanism 210, the vertical straightening mechanism 200 is composed of a plurality of sets of straightening rollers which are disposed in a vertically staggered manner, the horizontal straightening mechanism 210 is composed of a plurality of sets of straightening rollers which are disposed in a horizontally staggered manner (the number of straightening rollers can be set according to actual conditions), and when the winding wire 70 in a curved coil sequentially passes through the vertical straightening mechanism 200 and the horizontal straightening mechanism 210, a straight winding wire is formed. The positions of the vertical straightening mechanism 200 and the horizontal straightening mechanism 210 may be interchanged, that is, the wire winding 70 in the shape of a curved coil may also pass through the horizontal straightening mechanism 210 first and then pass through the vertical straightening mechanism 200 to form a straight wire winding.

The winding cross-section forming mechanism 30 is a winding that obtains a desired cross-sectional shape and size of the winding passing through the wire feeding straightening mechanism 20 by the winding cross-section forming mechanism 30, and is generally a symmetrical polygon such as a trapezoid or a rectangle in which the cross-sectional shape of the winding (in the present embodiment, the winding is a stainless steel wire with a circular cross-section) is changed from a circle to a uniform symmetry. In this embodiment, the cross-sectional shape of the wire winding is changed from a circular shape to a polygonal shape as shown in fig. 3, which is a shape in which an isosceles trapezoid with the long side of the rectangle as the base is formed on the rectangle. In the present embodiment, the wire-winding cross-section forming mechanism 30 is a cross-section cold-rolling forming mechanism that changes the cross-sectional shape of the wire winding from a circular shape to a polygonal shape as shown in fig. 3 using a plurality of sets of roller dies.

As a preferred embodiment of the winding section forming mechanism 30, the winding section forming mechanism 30 is divided into two stages, the first stage is a rough forming mechanism 300 which is a multi-connection type two-roller die and is mainly used for roughly processing a steel wire with a circular section into a steel wire with a rectangular section through a roller die, and the second stage is a fine forming mechanism 310 which is a four-roller die mechanism distributed at a certain angle and is finally used for obtaining a special-shaped steel wire with a trapezoidal section. Because the steel wire is hard and difficult to process into a trapezoidal section at one time, the steel wire is processed into two stages, so that the steel wire processed by the first-stage rough forming mechanism 300 becomes a steel wire with a rectangular section, and the steel wire processed by the second-stage fine forming mechanism 310 becomes a required special-shaped steel wire with a trapezoidal section, and then the special-shaped steel wire is output from the wire outlet nozzle 32.

The wire winding mechanism 50 is used for winding the wire winding 70 on the outer peripheral surface of the screen base pipe 60 in an Archimedes spiral, and the welding mechanism 40 is used for welding the wire winding 70 wound on the outer peripheral surface of the screen base pipe 60 into a whole. The wire-wrapping coiling mechanism 50 drives the screen base pipe 60 or the wire-feeding straightening mechanism 20 and the wire-wrapping section forming mechanism 30 to move along the axial direction of the screen base pipe 60 (the axial direction of the screen base pipe 60 is defined as the Z-axis direction), so that the moving speed along the Z-axis is in a certain proportion to the rotating speed of the screen base pipe 60 (the proportion can be calculated according to an archimedes spiral motion formula), so that the wire-wrapping 70 is distributed in an archimedes spiral according to a certain pitch, and when the lift of the archimedes spiral (i.e. the pitch of the spiral) is equal to the width of the wire-wrapping plus the gap (also called the seam width) between two adjacent turns of wire-wrapping, a wire-wrapping screen with a certain gap is formed.

Because the wire feeding straightening mechanism 20 and the wire winding section forming mechanism 30 are more convenient to control the movement of the sieve tube base tube 60 along the Z-axis direction, in this embodiment, the wire feeding straightening mechanism 20 and the wire winding section forming mechanism 30 move along the Z-axis direction, the wire feeding straightening mechanism 20 and the wire winding section forming mechanism 30 are both fixedly installed on a movable worktable 80, and the movable worktable 80 moves in the Z-axis direction through a transmission device. Preferably, the transmission means is a lead screw stroke control means which converts the output of the rotation shaft of the servo motor into a linear motion so that the moving table 80 can move in the Z-axis direction. More preferably, the mobile platform further has a height adjusting device 82, and the height adjusting device 82 can adjust the height difference between the mounting surface of the mobile platform and the vertex of the outer peripheral surface of the screen base pipe, so that the mobile workbench 80 can move up and down to match the wire wrapping requirements of screen base pipes 60 with different diameters.

And a motion control system (not shown in the figure) which drives the screen base pipe 60 to rotate by controlling the rotation speed of the power part 110 (servo motor) and the speed of the moving table 80 to move along the Z-axis direction, so that the wire winding 70 is wound on the outer circumferential surface of the screen base pipe 60 in an Archimedes spiral, and the motion track can be directly programmed by adopting a G code to control the motion track of the wire winding so as to form the spiral motion required by the screen wire winding. The motion control system described herein may use a control microcomputer with mature technology in the prior art to perform a preset control program to implement the control function, or may use a chip control technology with mature technology, for example, use an industrial control module PLC, an MCU chip, etc. to implement the control function. The corresponding control function can be completed by purchasing the corresponding control unit for assembly and presetting the corresponding control program in the control unit.

The above-mentioned wire-wrapped screen forming device has basically the same functional structure as the existing wire-wrapped screen forming device, and the difference is that, referring to fig. 2-6, a boss stamping forming mechanism 90 is further provided between the wire-wrapped cross-section forming mechanism 30 and the wire outlet nozzle 32, the boss stamping forming mechanism 90 is fixedly mounted on the movable worktable 80 together with the wire-feeding straightening mechanism 20 and the wire-wrapped cross-section forming mechanism 30, the boss stamping forming mechanism 90 is used for forming a plurality of wire-wrapped bosses 700 at intervals on at least one side of the wire-wrapped with special cross-section formed by the wire-wrapped cross-section forming mechanism 30, and when the wire-wrapped 70 is wrapped on the outer peripheral surface of the screen base pipe 60, the gap (also referred to as slot width) between two adjacent turns of wire-wrapped is determined by the height of the wire-wrapped bosses 700 on the side of the wire-wrapped side.

Specifically, as shown in fig. 5, a plurality of pairs of winding bosses 700 are formed on opposite sides of the winding 70 having the special-shaped cross section with the trapezoidal cross section, each winding boss 700 has a side surface 702, and when the winding 70 is wound on the outer circumferential surface of the screen base pipe 60, the side surfaces 702 are perpendicular to the outer circumferential surface of the screen base pipe 60. The distance between the side surfaces 702 of each pair of wire-winding bosses 700 is exactly equal to the lift of the archimedean spiral (i.e., the pitch of the spiral) as the screen base pipe 60 winds the wire-winding 70. When the wire wraps 70 are wound on the screen base pipe 60, the side elevations 702 of the wire wrap bosses 700 on two adjacent wire wraps 70 are abutted, so that the gap (also called seam width) between two adjacent wire wraps 70 is equal to the sum of the heights of the protrusions of the two abutted wire wrap bosses 700 on two adjacent wire wraps 70.

Alternatively, as shown in fig. 6, a plurality of winding bosses 700 'are formed on one side of the winding 70 with the trapezoidal cross section and the special cross section, and each winding boss 700' also has a side elevation 702 ', and the distance between the side elevation 702 of each winding boss 700' and the opposite side is exactly equal to the stroke of the archimedean spiral (i.e. the pitch of the spiral) when the screen base pipe 60 winds the winding 70. When the wire wrap 70 is wound on the screen base pipe 60, the side surface 702 'of the wire wrap boss 700' of two adjacent turns of wire wrap 70 abuts the other side edge of the wire wrap 70, so that the gap (also referred to as the slot width) between the two adjacent turns of wire wrap is equal to the height of the protrusion of the wire wrap boss 700.

The wire winding bosses on one side in fig. 6 are equivalent to the wire winding bosses on the opposite two sides in fig. 5, namely, the height of one wire winding boss is zero, and the height of the other wire winding boss is equal to the width of the screen gap, so that the process method is the same for the subsequent winding, welding and other processes with the wire winding bosses on one side or on both sides. In the following, the winding bosses are provided on both opposite side surfaces of fig. 3, that is, the winding bosses on both side surfaces are not zero in height.

Referring to fig. 4, in order to simplify the boss embossing mechanism 90 and facilitate the control of the boss embossing mechanism 90, the boss embossing mechanism 90 preferably employs an embossing roller pair 900 and a second power member 910, wherein the second power member 910 is used to drive the embossing roller pair 900 to rotate relatively, i.e., one embossing roller rotates clockwise and the other embossing roller rotates counterclockwise. In order to facilitate the control of the rotational speed of the embossing roller set by the second power member 910, a servo motor is preferably used for the second power member 910. The embossing roller pair 900 comprises two embossing rollers arranged side by side, wherein one embossing roller is a driving embossing roller 902 in driving connection with a second power part 910, the other embossing roller is a driven embossing roller 904 in driven rotation, the driving embossing roller and the driven embossing roller are both provided with a first groove 9020 and a second groove 9040 which are circumferentially arranged on the outer peripheral surfaces of the driving embossing roller and the driven embossing roller, and the cross-sectional shapes of the first groove 9020 and the second groove 9040 are matched with the cross-sectional shape of a wire winding. Both the first recess 9020 and the second recess 9040 have a recess 906 matching the protruding height of the wire winding boss 700 (if the wire winding 70 has a wire winding boss on one side, there is no recess in one of the recesses, that is, the recessed depth of one recess is zero), and the minimum distance between the first recess 9020 and the second recess 9040 is smaller than the width between the two opposite sides of the wire winding, when the wire winding 70 passes through the embossing roller pair 900, the embossing roller pair 900 compresses and reduces the two opposite sides of the wire winding when passing through the region where there is no recess 906 in both the first recess 9020 and the second recess 9040, and the wire winding boss 700 corresponding to the shape of the recess 906 is formed when passing through the region with the recess.

When the wire winding 70 with the special-shaped section passes through the boss coining forming mechanism 90, two opposite sides of the wire winding are extruded to form symmetrically distributed wire winding bosses 700, the length of the cross section of each wire winding boss 700 is exactly half of the gap of the sieve tube, so that a pair of wire winding bosses 700 are arranged on the outgoing wire winding at a certain distance, the distance between the two bosses is related to the rotating speed of the second power part 910 and the rotating speed and the diameter of the sieve tube base tube 60, and the two bosses are in a certain proportion, so that after the wire winding passes through the wire winding mechanism 50 to be wound on the sieve tube base tube 60, the distance between the side vertical surfaces 702 of the two wire winding bosses 700 is exactly equal to the lift of the Archimedes spiral line of the sieve tube.

The forming device for the wire-wrapping screen pipe provided by the embodiment manufactures the wire-wrapping bosses on one side surface or two side surfaces of the wire wrapping in advance, the vertical surfaces of the wire-wrapping bosses of the wire wrapping are tightly attached to the side surfaces of the adjacent wires or the side vertical surfaces of the two adjacent wire-wrapping bosses during wire wrapping, and the gaps between the wires wrapped by the screen pipe are limited by the wire-wrapping bosses, so that the high-precision wire-wrapping screen pipe can be realized by adopting numerical control equipment with common precision grade under the condition of ensuring the precision of the wire-wrapping bosses.

Referring to fig. 1-6, it is further preferred that the depth of the depression 906 is greater than the height of the protrusion of the wire winding boss 700 on the wire winding, that the boss embossing mechanism 90 further comprises a refining mechanism 920 located at the rear end of the embossing roller pair 900, and that the refining mechanism 920 comprises a sander for sanding the wire winding boss 700 and a driver for driving the sander. Because the depth of the depression 906 is greater than the height of the projection of the winding boss 700, the projection of the winding boss 700 formed by the embossing roller set 900 described above will end up at the actual height used, and this excess is ground away by the finish grinding mechanism 920 to compensate for the errors in the boss embossing mechanism and, by finish grinding, improve its accuracy.

In this embodiment, the fine grinding mechanism 920 includes a pair of grinding wheels and a motor 9202 for driving the grinding wheels 9200 to rotate, and the final protrusion height of the filament winding boss 700 can be controlled by controlling the distance between the two grinding wheels.

Implement 2

As shown in fig. 7, the present embodiment provides a wire-wrapped screen, which includes a screen base pipe 60 and a wire wrap 70 wound around the outer circumference of the screen base pipe 60 in an archimedes spiral manner, wherein the wire wrap 70 is the wire wrap shown in fig. 5 or 6, i.e., a plurality of spaced wire-wrapped bosses are formed on one side or opposite sides of the wire wrap.

As shown in fig. 5, a plurality of spaced winding bosses are formed on opposite sides of the winding. Each wire wrap boss 700 has a side elevation 702, and the side elevation 702 is perpendicular to the outer periphery of the screen base pipe 60 when the wire wrap 70 is wrapped around the outer periphery of the screen base pipe 60. The distance between the side surfaces 702 of each pair of wire-winding bosses 700 is exactly equal to the lift of the archimedean spiral (i.e., the pitch of the spiral) as the screen base pipe 60 winds the wire-winding 70. When the wire wraps 70 are wound on the screen base pipe 60, the side elevations 702 of the wire wrap bosses 700 on two adjacent wire wraps 70 are abutted, so that the gap (also called seam width) between two adjacent wire wraps 70 is equal to the sum of the heights of the protrusions of the two abutted wire wrap bosses 700 on two adjacent wire wraps 70.

Alternatively, as shown in fig. 6, a plurality of winding bosses 700 'are formed on one side of the winding wire 70 at intervals, each winding boss 700' also has a side elevation 702 ', and the distance between the side elevation 702 of each winding boss 700' and the opposite side is exactly equal to the stroke of the archimedean spiral (i.e., the pitch of the spiral) when the winding wire 70 is wound on the screen base pipe 60. When the wire wrap 70 is wound on the screen base pipe 60, the side surface 702 'of the wire wrap boss 700' of two adjacent turns of wire wrap 70 abuts the other side edge of the wire wrap 70, so that the gap (also referred to as the slot width) between the two adjacent turns of wire wrap is equal to the height of the protrusion of the wire wrap boss 700.

The wire winding bosses on one side in fig. 6 are equivalent to the wire winding bosses on the opposite two sides in fig. 5, namely, the height of one wire winding boss is zero, and the height of the other wire winding boss is equal to the width of the screen gap, so that the process method is the same for the subsequent winding, welding and other processes with the wire winding bosses on one side or on both sides.

The gap between the wires on the wire-wrapping screen pipe is determined by the wire-wrapping boss, so that the high-precision wire-wrapping screen pipe can be realized by adopting numerical control equipment with common precision grade under the condition of ensuring the precision of the wire-wrapping boss.

Example 3

The wire-wrapped screen pipe provided by the embodiment is realized on the basis of the embodiment 2, referring to fig. 7 and 8, a plurality of strip-shaped grooves 600 arranged in parallel are formed on the outer peripheral surface of the screen base pipe 60 along the axial direction of the screen base pipe, the distribution of the strip-shaped grooves 600 corresponds to the wire-wrapped bosses 700 on the wires 70, so that after the wires 70 are wrapped on the outer peripheral surface of the screen base pipe 60, each wire-wrapped boss 700 is opposite to one of the strip-shaped grooves 600, and after the wire-wrapped winding is completed, the wire-wrapped bosses on the wire-wrapped screen base pipe are welded along the strip-shaped grooves formed on the screen base pipe by a laser welding mechanism, thereby greatly improving the welding efficiency.

The welding method adopts a combination mode of laser welding the sieve tube base tube with the strip-shaped groove, which is not the traditional combination mode of copper disc discharge welding and warp, when the wire wrap is completely wound on the sieve tube base tube, the sieve tube base tube with the wire wrap can be fed along the axial direction, meanwhile, the laser welding device starts welding, after all wire wrap bosses on the strip-shaped groove are welded, the sieve tube base tube is rotated by a certain angle, the next strip-shaped groove and the wire wrap bosses on the strip-shaped groove are arranged under a welding laser head to start welding, and simultaneously, the sieve tube base tube with the wire wrap is controlled to be fed along the axial direction, thus, the welding of the whole wire wrap sieve tube is completed in a circulating way, the welding efficiency can be greatly improved, and the sieve tube can be pulled out without ribs (warp) on the existing sieve tube, the screen sleeve is formed to meet different screen application requirements.

While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (9)

1. The utility model provides a wire-wrapped screen pipe, includes screen pipe base pipe and winds the wire-wrapped on the screen pipe base pipe outer peripheral face with the mode of Archimedes spiral, its characterized in that: and a plurality of wire winding bosses are formed on one side surface of each wire winding boss at intervals, each wire winding boss is provided with a first side vertical surface vertical to the peripheral surface of the base pipe of the screen pipe, the other side surface opposite to the side surface is provided with a second side vertical surface parallel to the first side vertical surface, the first side vertical surfaces of the wire winding bosses on the wire winding are attached to the second side vertical surfaces of the adjacent wire windings along the axial direction of the base pipe of the screen pipe, and the protruding height of each wire winding boss is equal to the wire winding gap of the wire winding screen pipe.

2. The utility model provides a wire-wrapped screen pipe, includes screen pipe base pipe and winds the wire-wrapped on the screen pipe base pipe outer peripheral face with the mode of Archimedes spiral, its characterized in that: the opposite two side surfaces of the wire winding are respectively provided with a plurality of wire winding bosses which are arranged at intervals, each wire winding boss is provided with a side vertical surface which is vertical to the peripheral surface of the base pipe of the screen pipe, the side vertical surfaces of the wire winding bosses and the side vertical surfaces of the wire winding bosses of the adjacent wire winding are attached along the axial direction of the base pipe of the screen pipe, and the sum of the protruding heights of the two wire winding bosses which are attached to each other is equal to the wire winding gap of the wire winding screen pipe.

3. The wire-wrapped screen according to claim 1 or 2, wherein: the outer peripheral surface of the screen pipe base pipe is provided with a plurality of strip-shaped grooves arranged along the axial direction of the screen pipe base pipe, and each wire winding boss of a wire winding wound on the outer peripheral surface of the screen pipe base pipe is positioned right above one of the strip-shaped grooves.

4. The utility model provides a wire-wrapped screen pipe forming device, is including being used for supporting the screen pipe base pipe and driving the rotatory lathe of this screen pipe base pipe, send a aligning gear with the wire winding alignment, form the wire winding cross-section forming mechanism of specific shape with the cross-section of wire winding, weld the welding mechanism of wire winding and be the wire winding mechanism of archimedes spiral line coiling on the screen pipe base pipe outer peripheral face with the wire winding, its characterized in that: the back end of the wire winding section forming mechanism is also provided with a boss stamping forming mechanism, the boss stamping forming mechanism is provided with a stamping space for the wire winding to pass through and a stamping part, the stamping part can apply pressure to the wire winding passing through the stamping space, so that a plurality of wire winding bosses which are arranged at intervals and protrude out of the side surface are formed on one side surface or two opposite side surfaces of the wire winding, and the outer side surface of each wire winding boss is a side vertical surface which is vertical to the outer peripheral surface of the screen tube.

5. The wire-wrapped screen forming apparatus according to claim 4, wherein: boss impression forming mechanism includes the impression roller pair and the power spare of compriseing first impression roller and second impression roller, the power spare is used for driving the impression roller pair and rotates relatively, first impression roller and second impression roller set up side by side, have respectively on first impression roller and the second impression roller and correspond the setting with the wire winding boss of wire winding and be the circumference and establish first recess and second recess on its outer peripheral face, the clearance between first recess and the second recess does the impression space, and the distance in this impression space is less than the width between the relative both sides face of wire winding, be provided with the depressed part that sets up with wire winding boss shape phase-match on first recess and/or the second recess.

6. The wire-wrapped screen forming apparatus according to claim 5, wherein: the sunken degree of depth of depressed part is greater than the protruding height of wire winding boss on the wire winding, boss impression forming mechanism still includes the correct grinding mechanism who is located the impression roller pair rear end, and this correct grinding mechanism is right the sander that the wire winding boss polished and the driver of this sander work of drive.

7. The wire-wrapped screen forming apparatus according to claim 6, wherein: the wire feeding straightening mechanism, the wire winding section forming mechanism and the boss stamping forming mechanism are fixedly arranged on the moving platform in sequence and can reciprocate along the axis direction of the sieve tube base tube.

8. The wire-wrapped screen forming apparatus according to claim 7, wherein: the movable platform is also provided with a height adjusting device which can adjust the height difference between the mounting surface of the movable platform and the vertex of the outer peripheral surface of the screen pipe base pipe.

9. The wire-wrapped screen forming apparatus according to claim 4, wherein: the welding mechanism is a laser welding mechanism.