CN209986148U - Screen pipe wire winding forming device - Google Patents

Abstract

The utility model relates to a screen pipe wire winding forming device, include and will send a alignment mechanism, wire winding cross-section forming mechanism and boss impression forming mechanism, this boss impression forming mechanism has an impression space and the impression that supplies the wire winding to pass, this impression can exert pressure to the wire winding through this impression space, thereby when forming the wire winding boss of protrusion side so that the wire winding coiling on one side of wire winding or relative both sides face, the side facade of wire winding boss side facade hugs closely the side of closing adjacent wire winding or the side facade of two adjacent wire winding bosses and closely laminates, it restricts the clearance between the screen pipe wire winding through the wire winding boss, consequently under the condition of guaranteeing wire winding boss precision, the numerical control equipment who adopts ordinary precision grade just can realize the wire winding screen pipe of high accuracy.

Description

Screen pipe wire winding forming device

Technical Field

The utility model relates to a wire-wound screen pipe field specifically relates to a screen pipe wire-wound 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 also provides a screen pipe wire winding forming device to the manufacturing of wire winding screen pipe for the high accuracy provides the screen pipe wire winding.

The specific scheme is as follows:

the utility model provides a screen pipe wire winding forming device, includes the wire winding cross-section forming mechanism who sends the alignment mechanism and form specific shape with the cross-section of wire winding, still including being located the boss impression forming mechanism of wire winding cross-section forming mechanism rear end, this boss impression forming mechanism has an impression space and the impression that supplies the wire winding to pass, and this impression can exert pressure to the wire winding through this impression space to form the wire winding boss that a plurality of intervals set up and salient side on a side of wire winding or relative both sides face, the lateral surface of wire winding boss is the side facade mutually perpendicular with the outer peripheral face of screen pipe base pipe.

Further, 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 locate first recess and the second recess on its global, the clearance between first recess and the second recess be 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.

Furthermore, the sunken 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 accurate grinding mechanism who is located impression roller pair rear end, and this accurate grinding mechanism includes to the sander that the wire winding boss polished and the driver of this sander work of drive.

Furthermore, the sander comprises a first grinding wheel and a second grinding wheel, the sanding surfaces of the first grinding wheel and the second grinding wheel are arranged oppositely and at intervals, and the first grinding wheel and the second grinding wheel are used for sanding a wire winding boss on a wire winding passing through the first grinding wheel and the second grinding wheel.

Further, send a straightening mechanism to include vertical straightening mechanism and horizontal straightening mechanism, vertical straightening mechanism comprises a plurality of alignment running rollers that the multiunit was upper and lower dislocation set, and horizontal straightening mechanism comprises a plurality of alignment running rollers that the multiunit was left and right dislocation set.

Furthermore, the vertical straightening mechanism and the horizontal straightening mechanism are both provided with adjusting screws for adjusting the distance between the straightening rollers.

Further, the wire winding section forming mechanism comprises a coarse forming mechanism and a fine forming mechanism, the coarse forming mechanism is a multi-connection type two-roller die and is used for processing wire windings with circular sections into steel wires with rectangular sections, and the fine forming mechanism is a four-roller die mechanism and is used for processing the lower portions of the steel wires with rectangular sections into trapezoidal sections.

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

Drawings

Figure 1 shows a schematic of a screen wire-wrap forming device.

Figure 2 shows a schematic view of a filament winding of a particular cross-section formed via a filament winding cross-section forming mechanism.

Figure 3 shows a schematic view of the formation of winding bosses on opposite sides of the winding.

Figure 4 shows a schematic view of the formation of winding bosses on one side of the windings.

FIG. 5 shows a schematic view of a boss stamp forming mechanism.

Fig. 6 shows a schematic view of a boss stamp forming mechanism with a refining mechanism.

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

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 is directed to a screen wire-winding forming device, which includes a wire-feeding straightening mechanism 10, a wire-winding cross-section forming mechanism 20, and a boss stamp forming mechanism 30.

The wire winding used at present is usually coiled into a coil shape for convenience of transportation, storage and packaging, so the wire feeding straightening mechanism 10 is to straighten the fed wire winding 40 (generally, a stainless steel wire with a circular cross section) in a curved coil shape by the wire feeding straightening mechanism 10 to obtain a straight wire winding (in this case, the interface shape of the wire winding is circular).

In this embodiment, referring to fig. 1, the wire feeding straightening mechanism 10 includes a vertical straightening mechanism 100 and a horizontal straightening mechanism 110, where the vertical straightening mechanism 100 is composed of a plurality of sets of straightening rollers that are disposed in a vertically staggered manner, and the horizontal straightening mechanism 110 is composed of a plurality of sets of straightening rollers that are disposed in a horizontally staggered manner (the number of straightening rollers may be set according to actual conditions), and when the winding wire 40 in a curved coil sequentially passes through the vertical straightening mechanism 100 and the horizontal straightening mechanism 110, a straight winding wire is formed. The positions of the vertical straightening mechanism 100 and the horizontal straightening mechanism 110 may be interchanged, that is, the winding wire 40 in the shape of a curved coil may also pass through the horizontal straightening mechanism 110 first and then pass through the vertical straightening mechanism 100 to form a straight winding wire. In addition, the vertical straightening mechanism 100 and the horizontal straightening mechanism 110 may be provided with adjusting screws for adjusting the distance between the straightening rollers to adapt to the wire windings with different diameters.

The winding cross-section forming mechanism 20 is a winding that obtains a desired cross-sectional shape and size of the winding passing through the wire feeding straightening mechanism 10 by the winding cross-section forming mechanism 20, 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. 2, which is a special 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 20 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. 2 using a plurality of sets of roller dies.

As a preferred embodiment of the winding section forming mechanism 20, the winding section forming mechanism 20 is divided into two stages, the first stage is a rough forming mechanism 200 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 210 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 coarse 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.

The screen pipe wire-winding forming device is different from the prior art in that the screen pipe wire-winding forming device further comprises a boss stamping forming mechanism 30 positioned at the rear end of the wire-winding section forming mechanism 20, the boss stamping forming mechanism 30 is used for forming a plurality of wire-winding bosses 400 arranged at intervals on at least one side of the wire-winding with the special-shaped section formed by the wire-winding section forming mechanism 20, and when the wire-winding 40 is wound on the outer peripheral surface of the screen pipe base pipe, the gap (also called seam width) between two adjacent turns of wire-winding is determined by the height of the protrusion of the wire-winding boss 400 on the side of the wire-winding.

Specifically, as shown in fig. 3, a plurality of pairs of winding bosses 400 are formed on opposite sides of the winding 40 having the special-shaped cross section with the trapezoidal cross section, each winding boss 400 has a side elevation 402, and when the winding 40 is wound on the outer circumferential surface of the screen base pipe, the side elevations 402 are perpendicular to the outer circumferential surface of the screen base pipe. The distance between the side surfaces 402 of each pair of wire-winding bosses 400 is exactly equal to the stroke of the archimedes' spiral (i.e., the pitch of the spiral) as the screen pipe winds the wire-winding 40. When the wire winding 40 is wound on the screen base pipe, the side surfaces 402 of the wire winding bosses 400 on two adjacent wire windings 40 are abutted, so that the gap (also called seam width) between the two adjacent wire windings is equal to the sum of the heights of the two abutted wire winding bosses 400 on the two adjacent wire windings 40.

Or as shown in fig. 4, a plurality of winding bosses 400 'are formed at intervals on one side of the winding 40 with the special-shaped cross section having the trapezoidal cross section, each winding boss 400' also has a side elevation 402 ', and the distance between the side elevation 402 of each winding boss 400' and the opposite side is exactly equal to the stroke of the archimedean spiral (i.e., the pitch of the spiral) when the winding 40 is wound on the screen base pipe. When the wire winding 40 is wound on the screen base pipe, the side elevation 402 'of the wire winding boss 400' on two adjacent wire windings 40 is abutted against the other side edge of the wire winding 40, so that the gap (also called seam width) between two adjacent wire windings is equal to the height of the protrusion of the wire winding boss 400.

The wire winding bosses on one side in fig. 4 are equivalent to the wire winding bosses on the opposite sides in fig. 3, that is, the height of one wire winding boss 400 is zero, and the height of the other wire winding boss 400 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. 1 to 5, in order to simplify the structure of the boss embossing mechanism 30 and facilitate the control of the boss embossing mechanism 30, the boss embossing mechanism 30 preferably employs an embossing roller pair 300 and a power member 310, wherein the power member 310 is used for driving the embossing roller pair 300 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 platen roller set by the power member 310, a servo motor is preferably used for the power member 310.

Referring to fig. 5, preferably, the embossing roller pair 300 includes two embossing rollers disposed side by side, one of which is a driving embossing roller 302 drivingly connected to the power member 310, and the other is a driven embossing roller 304 driven to rotate, and the driving embossing roller 302 and the driven embossing roller 304 each have a first groove 3020 and a second groove 3040 circumferentially disposed on the outer peripheral surface thereof, and the first groove 3020 and the second groove 3040 have a cross-sectional shape matched to the cross-sectional shape of the wire winding. Both the first recess 3020 and the second recess 3040 have a concave portion 306 matching the protrusion height of the winding boss 400 (if the winding 40 has a winding boss on one side, there is no concave portion in one of the recesses, i.e., the depth of the concave portion is zero), and the minimum distance between the first recess 3020 and the second recess 3040 is smaller than the width between the two opposite sides of the winding, so that when the winding 40 passes through the embossing roller pair 300, the embossing roller pair 300 compresses and reduces the two opposite sides of the winding when passing through the area where there is no concave portion 306 in both the first recess 3020 and the second recess 3040, and the winding boss 400 corresponding to the shape of the concave portion 306 is formed when passing through the area having the concave portion.

When the wire winding 40 with the special-shaped section passes through the boss coining forming mechanism 30, two opposite sides of the wire winding are extruded to form the wire winding bosses 400 which are symmetrically distributed, the length of the cross section of each wire winding boss 400 is exactly half of the gap of the sieve tube, so that the wire winding which comes out has a pair of wire winding bosses 400 at a certain distance, the distance between the two bosses is related to the rotating speed of the power part 310 and the rotating speed and the diameter of the sieve tube base tube, and the two bosses form a certain proportion, so that after the wire winding is wound on the sieve tube base tube, the distance between the side vertical surfaces 402 of the two wire winding bosses 400 is exactly equal to the lift of the Archimedes spiral line of the sieve tube.

The wire winding boss is formed on one side surface or two side surfaces of the wire winding manufactured by the screen pipe wire winding forming device provided by the embodiment, when the wire winding is carried out, referring to fig. 7, the vertical surface of the wire winding boss of the wire winding is tightly attached to the side surface of the adjacent wire winding or the side vertical surfaces of the two adjacent wire winding bosses are tightly attached, and the gap between the wire windings of the screen pipe is limited by the wire winding boss, so that the high-precision wire winding screen pipe can be realized by adopting numerical control equipment with common precision grade under the condition of ensuring the precision of the wire winding bosses.

Example 2

This embodiment provides a screen-winding forming device having substantially the same structure as that of the screen-winding forming device of embodiment 1, except that, referring to fig. 6, the depth of the recess 306 is greater than the height of the protrusion of the winding boss 400 on the wire, and the boss stamp forming mechanism 30 further includes a refining mechanism 320 at the rear end of the embossing roller pair 300, and the refining mechanism 320 includes a sander for sanding the winding boss 400 and a driver for driving the sander. Since the recess 306 is recessed to a depth greater than the height of the projection of the winding boss 400, the projection of the winding boss 400 formed by the embossing roller set 300 described above will eventually be as high as is actually required, and this excess is ground away by the finish grinding mechanism 320 to compensate for the errors in the boss embossing mechanism, and precision is improved by finish grinding.

In this embodiment, it is preferable that the fine grinding mechanism 320 includes a pair of grinding wheels 3200 and a motor 3202 for driving the grinding wheels 3200 to rotate, and the final projecting height of the winding boss 400 can be controlled by controlling the interval between the grinding wheels. The final protruding height of the wire-wrapping boss 400 can be changed by adjusting the distance between the two grinding wheels, so that the gap between the wires on the wire-wrapping screen pipe can be adjusted.

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 (7)

1. The utility model provides a screen pipe wire winding forming device, includes the wire feeding aligning gear who will wind the alignment and will wind the cross-section of silk and form the wire winding cross-section forming mechanism of specific shape which characterized in that: the boss impression forming mechanism is provided with an impression space and an impression piece, the impression piece can apply pressure to the coiled wires passing through the impression space, so that a plurality of wire winding bosses which are arranged at intervals and protrude from the side face are formed on one side face or the opposite side faces of the coiled wires, and the outer side face of each wire winding boss is a side vertical face perpendicular to the outer peripheral face of the screen tube base tube.

2. The screen-wrap forming apparatus of claim 1, wherein: boss impression forming mechanism includes the embossing roller pair and the power spare of constituteing by first embossing roller and second embossing roller, the power spare is used for driving embossing roller pair and rotates relatively, first embossing roller and second embossing roller set up side by side, have respectively on first embossing roller and the second embossing roller with the wire winding boss of wire winding correspond the setting and be the circumference and locate first recess and the second recess on its global, 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.

3. The screen-wrap forming apparatus of claim 2, 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.

4. The screen-wrap forming apparatus of claim 3, wherein: the sander comprises a first grinding wheel and a second grinding wheel, the sanding surfaces of the first grinding wheel and the second grinding wheel are arranged oppositely and at intervals, and the first grinding wheel and the second grinding wheel are used for sanding a wire winding boss on a wire winding passing through the first grinding wheel and the second grinding wheel.

5. The screen-wrap forming apparatus of claim 1, wherein: the wire feeding straightening mechanism comprises a vertical straightening mechanism and a horizontal straightening mechanism, the vertical straightening mechanism is composed of a plurality of straightening rollers which are arranged in an upper and lower staggered mode, and the horizontal straightening mechanism is composed of a plurality of straightening rollers which are arranged in a left and right staggered mode.

6. The screen-wrap forming apparatus of claim 5, wherein: and the vertical straightening mechanism and the horizontal straightening mechanism are both provided with adjusting screws for adjusting the distance between the straightening rollers.

7. The screen-wrap forming apparatus of claim 1, wherein: the wire winding section forming mechanism comprises a coarse forming mechanism and a fine forming mechanism, the coarse forming mechanism is a multi-connection type two-roller die, the wire winding of the circular section is processed into a steel wire with a rectangular section, the fine forming mechanism is a four-roller die mechanism, and the lower portion of the steel wire with the rectangular section is processed into a trapezoidal section.

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