CN220969699U - Steel wire surface gluing die - Google Patents

Abstract

The utility model provides a steel wire surface gluing die which comprises a die body provided with a melt adhesive channel, wherein the melt adhesive channel is provided with a first opening, a second opening and a third opening; the die is fixed on the first opening and is provided with an adjustable through hole with an adjustable caliber; the mold core is provided with a steel wire channel for passing an external steel wire, one end of the mold core is fixed in the second opening, and the other end of the mold core is penetrated in the melt adhesive channel and extends to the first opening; the outer wire is threaded through the wire channel via the circumferential channel and out of the adjustable through hole. The utility model overcomes the defect that the sizing device in the production of the existing steel wire mesh tube can not flexibly adjust the sizing thickness and uniformity of the steel wire, has more uniform steel wire sizing, higher production efficiency and wide application, and can be suitable for forming all plastic composite steel wire mesh tube products.

Description

Steel wire surface gluing die

Technical Field

The utility model relates to the technical field of steel wire mesh pipes, in particular to a steel wire surface gluing die.

Background

The PE steel wire mesh pipe product is a multilayer composite pipe product, the steel wire mesh pipe is an industry call of steel wire mesh skeleton plastic composite pipe, the steel wire mesh pipe is formed by fusing thermoplastic polyethylene and skeleton made of high-strength steel wires which are subjected to plastic cross weaving, the steel wire is used as one of main materials of the steel wire mesh skeleton pipe, in order to enable the steel wire to be tightly wound on a pipe fitting, resin glue or other adhesive materials are coated on the surface of the steel wire to increase the quality of the steel wire mesh skeleton pipe, the outermost layer of the steel wire mesh pipe is of an overmoulding structure and is extruded and moulded by an outer auxiliary machine, and the bonding strength of the steel wire and an inner-outer pipe fitting is greatly influenced by the coating uniformity degree of the steel wire glue in the production process.

The Chinese patent document CN107139415A discloses a production device and a gluing method for a surface gluing phosphating steel wire, which comprises a horizontal moving platform, a glue-wrapping steel wire die fixing and adjusting device arranged on the horizontal moving platform, and a phosphating steel wire glue-wrapping die arranged on the glue-wrapping steel wire die, wherein a phosphating steel wire glue-wrapping die is arranged on a heating device; during operation, a phosphating steel wire and a tray which are not glued are placed on a steel wire paying-off device, the phosphating steel wire which is not glued is led out to pass through a phosphating steel wire glue wrapping die, a glue wrapping steel wire is led out from a steel wire outlet channel of the phosphating steel wire glue wrapping die, then the steel wire passes through a steel wire polyethylene cushion layer extrusion machine head, an EVA glue extrusion switch is opened, the proper extrusion speed is regulated, the cushion layer extrusion machine head is opened, the cushion layer steel wire passes through a production line, whether the appearance is uniform and smooth is observed, and if the surface is uniform and smooth, the steel wire is led to a take-up reel for take-up; gradually increasing the production speed, and simultaneously submitting the extrusion speed of EVA glue until the phosphatized steel wire wrapped with the glue reaches uniformity and smoothness.

According to the scheme, the glue filling port is formed in the traction channel of the steel wire, the traction travelling of the steel wire is utilized to carry out glue filling through the glue filling position, the glue filling mode is adopted, the glue filling uniformity and the glue filling thickness depend on the travelling channel caliber limit of the steel wire and the travelling speed of the steel wire, and the glue filling thickness and the uniformity of the steel wire cannot be flexibly adjusted.

Disclosure of utility model

The utility model aims to overcome the defect that the gluing thickness and uniformity of a steel wire cannot be flexibly adjusted by a gluing device in the production of the existing steel wire mesh tube, and provides a steel wire surface gluing die. The utility model has the advantages of more uniform steel wire gluing, higher production efficiency and wide application, and is applicable to the molding of all plastic composite steel wire net pipe products.

In order to solve the technical problems, the utility model adopts the following technical scheme:

A steel wire surface sizing die comprising:

The die body is provided with a melt adhesive channel, and the melt adhesive channel is provided with a first opening, a second opening and a third opening;

The die is fixed on the first opening and is provided with an adjustable through hole with an adjustable caliber;

the mold core is provided with a steel wire channel for passing an external steel wire, and the steel wire channel and the adjustable through hole are coaxially arranged;

The outer wall of the mold core and the inner wall of the melt adhesive channel, and the outer wall of the mold core and the inner wall of the die form a surrounding type channel, the surrounding type channel is communicated with the adjustable through hole, the external melt adhesive enters the melt adhesive channel from the third opening, flows through the surrounding type channel and is discharged from the adjustable through hole, and the external steel wire passes through the steel wire channel, passes through the surrounding type channel and is discharged from the adjustable through hole.

It should be noted that, the third opening of the glue melt glue of the utility model is converged into the melt glue channel, the glue passes through the surrounding channel formed by the mould body and the mould core, the transverse melt glue is changed into a hollow body from a solid body through the surrounding channel, and the circumferential wall thickness of the glue melt glue is compressed and fractal converged under the guidance of the mould core and the surrounding channel of the mould body; meanwhile, the outer steel wire passes through the steel wire channel to reach the position communicated with the surrounding type channel, the molten rubber is annularly wrapped around the periphery of the outer steel wire, meanwhile, the outer steel wire penetrating into the mold core is contacted with the mold core at a certain distance, the surface of the steel wire is promoted to be heated through the heat conduction effect in the mold core, the steel wire is promoted to have better adhesiveness after the temperature rise, the adhesive layer can be more uniformly and rapidly fused with the steel wire, the molten rubber is uniformly circumferentially extruded and wrapped around the adjustable through hole of the steel wire inlet die, the adjustable through hole guides the molten rubber to be further thinned from thickness to shape, and all procedures are completed through winding of the winding disc after the shaping is completed; the bush is designed into the form of adjustable bore, when there is ejection of compact deviation, the bore size of accessible regulation adjustable through-hole adjusts inside clearance distribution, corrects the deviation to the mesh of the even rubber coating of steel wire is realized, and outside steel wire can glue evenly, can also adjust the adjustable through-hole through the bush simultaneously and adjust steel wire rubberizing deviation, also can adjust the rubberizing thickness in a flexible way when improving the degree of consistency.

Further, the die comprises a plurality of split dies which can be surrounded to form an adjustable through hole, a die pressing plate which is sleeved on the peripheries of the split dies and fixes the split dies on the first opening, and a plurality of adjusting screws, one ends of which penetrate through the die body and the tail ends of which are abutted on the split dies.

Further, the surrounding type channel comprises a compression section with gradually reduced annular gaps, a forming section with gradually reduced annular gaps and converging, and a minimum annular gap section which is communicated with the compression section and the forming section, wherein the compression section is communicated with a third opening, and the forming section is communicated with an adjustable through hole. The pressurizing end and the forming section can provide sufficient diversion compression space for the molten rubber diversion, the minimum annular gap section ensures that the molten rubber is tightly compressed, the molten rubber is guided to gradually form a hollow blank, the molten rubber is discharged in a ring-pressing type balanced manner, and the steel wire can be uniformly coated on the thin-wall adhesive layer; the bush is designed to be adjustable, when discharging deviation exists, the adjustable screw is used for adjusting the gap distribution inside a plurality of split dies to correct the deviation, the adjustable thickness of sizing can also be adjusted by adjusting the gap distribution of a plurality of split dies, and the purpose of uniform sizing and flexible sizing thickness adjustment of steel wires can be achieved through various measures and optimal design.

Further, the minimum annular gap section has a gap width e of 0.5mm to 0.8mm.

Further, the adjustable through hole comprises a conical hole and a direct current hole which are communicated with each other to form a funnel-shaped through hole, the tail end of the mold core is conical and extends to the inside of the conical hole, and the forming section consists of the inner wall of the conical hole and the outer wall of the mold core.

Further, the taper angle a of the tail end of the mold core is smaller than the converging angle b of the taper hole.

Further, the taper angle a of the tail end of the mold core and the converging angle b of the taper hole are acute angles smaller than 45 degrees.

The minimum annular gap e between the mold core and the mold body is controlled to be 0.5-0.8 mm, the thickness of the glue is controlled to be 4-5 times, the tail end conical angle a of the mold core is smaller than the converging angle b of the conical hole, and the tail end conical angle a of the mold core and the converging angle b of the conical hole are acute angles smaller than 45 degrees, so that the balance of the discharging of the molten glue can be controlled, the steel wire can be uniformly coated on the glue layer with thin walls through the small gap, and the high-quality and high-efficiency production of the glue coating of the steel wire is realized.

Further, one end of the steel wire channel for the external steel wire to enter is a conical opening, and the channel inner diameter d1 of the steel wire channel is 0.1-0.3 mm larger than the diameter of the external steel wire. When the mold core is designed, a conical opening is designed at the rear end so as to guide the steel wire to quickly enter the mold core.

Further, the length L of the wire channel is 60 to 100 times the diameter of the outer wire.

The inner diameter d1 of the steel wire channel is 0.1-0.3 mm larger than the diameter of the external steel wire, the unilateral gap is controlled to be 0.05-0.15 mm, the concentricity of the steel wire and the die can be ensured by the small gap, and meanwhile, the molten rubber can be prevented from flowing back to the steel wire penetrating port by combining a long process that the length L of the steel wire channel is 60-100 times of the diameter of the external steel wire.

Further, the inner diameter d2 of the straight flow hole is 0.4mm to 0.6mm larger than the diameter of the outer steel wire. The unilateral gap between the straight flow hole and the steel wire is controlled between 0.2mm and 0.3mm, and the gap is larger than the gap between the mold core and the steel wire, so that the molten adhesive is more extruded towards the direction of the die, and the molten adhesive is prevented from flowing back to the mold core.

Compared with the prior art, the utility model has the beneficial effects that:

the die is designed into a form of adjustable caliber, when discharge deviation exists, the caliber of the adjustable through hole can be adjusted, internal gap distribution can be adjusted, and the deviation can be corrected, so that the aim of uniformly gluing steel wires can be fulfilled, external steel wires can be uniformly glued, meanwhile, the glue deviation of the steel wires can be adjusted through the adjustable through hole of the die, and the glue thickness can be flexibly adjusted while the uniformity is improved.

(2) The melt adhesive is extruded in a ring-pressing mode to be discharged in an equilibrium mode, the steel wire can be uniformly coated with the thin-wall adhesive layer through the design of the small gap, and high-quality and high-efficiency production of steel wire gluing is achieved.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is a schematic view of a mold core according to the present utility model.

The graphic indicia are illustrated as follows:

1-die body, 11-first opening, 12-second opening, 13-third opening, 20-adjustable through hole, 21-split die, 22-die pressing plate, 23-adjusting screw, 3-die core, 31-steel wire channel, 311-conical opening, 40-surrounding channel, 41-compression section and 42-forming section.

Detailed Description

The utility model is further described below in connection with the following detailed description. Wherein the drawings are for illustrative purposes only and are shown in schematic, non-physical, and not intended to be limiting of the present patent; for the purpose of better illustrating embodiments of the utility model, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the size of the actual product; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numbers in the drawings of embodiments of the utility model correspond to the same or similar components; in the description of the present utility model, it should be understood that, if there is an azimuth or positional relationship indicated by terms such as "upper", "lower", "left", "right", etc., based on the azimuth or positional relationship shown in the drawings, it is only for convenience of describing the present utility model and simplifying the description, but it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus terms describing the positional relationship in the drawings are merely illustrative and should not be construed as limitations of the present patent, and specific meanings of the terms described above may be understood by those skilled in the art according to specific circumstances.

Example 1

As shown in fig. 1 to 2, a steel wire surface gluing die includes:

The die body 1 is provided with a melt adhesive channel, and the melt adhesive channel is provided with a first opening 11, a second opening 12 and a third opening 13;

a die fixed to the first opening 11 and having an adjustable through hole 20 of an adjustable caliber;

The mold core 3, one end of which is fixed in the second opening 12 and the other end of which is penetrated in the melt adhesive channel and extends to the first opening 11, a steel wire channel 31 for the external steel wire to pass through is arranged in the mold core 3, and the steel wire channel 31 and the adjustable through hole 20 are coaxially arranged;

The outer wall of the mold core 3 and the inner wall of the melt adhesive passage, and the outer wall of the mold core 3 and the inner wall of the die form a surrounding passage 40, the surrounding passage 40 communicates with the adjustable through-hole 20, the external melt adhesive enters the melt adhesive passage from the third opening 13, flows through the surrounding passage 40 and is discharged from the adjustable through-hole 20, and the external wire passes through the wire passage 31, through the surrounding passage 40 and out of the adjustable through-hole 20.

It should be noted that, the third opening 13 of the glue solution in this embodiment merges into a glue solution channel, and passes through the surrounding channel 40 formed by the mold body 1 and the mold core 3, so that the transverse glue solution is changed from a solid body into a hollow body through the surrounding channel 40, and the circumferential wall thickness of the glue solution is compressed and merged in a fractal manner under the guidance of the mold core 3 and the surrounding channel 40 of the mold body 1; meanwhile, the external steel wire passes through the steel wire channel 31 to reach the position communicated with the surrounding type channel 40, the molten rubber is annularly wrapped on the periphery of the external steel wire, meanwhile, the external steel wire penetrating into the mold core 3 is contacted with the mold core 3 at a certain distance, the surface of the steel wire is promoted to be heated through the heat conduction effect in the mold core 3, the steel wire is promoted to have better adhesiveness after the temperature rise, the adhesive layer can be fused with the steel wire more uniformly and rapidly, the molten rubber is uniformly circumferentially extruded and wrapped on the adjustable through holes 20 of the steel wire inlet die, the adjustable through holes 20 guide the molten rubber to be further thinned from thickness and shaped, and all procedures are completed through winding by the winding disc after the shaping is completed; the bush is designed into the form of adjustable bore, when there is ejection of compact deviation, the bore size of adjustable through-hole 20 is adjusted to the accessible, adjusts inside clearance distribution, corrects the deviation to the mesh of the even rubber coating of steel wire is realized, and outside steel wire can glue evenly, can also adjust the adjustable through-hole 20 through the bush simultaneously and adjust steel wire rubberizing deviation, also can adjust the rubberizing thickness in a flexible way when improving the degree of consistency.

As shown in fig. 1, the die includes a plurality of split dies 21 which can be surrounded to form adjustable through holes 20, a die pressing plate 22 which is sleeved on the outer periphery of the split dies 21 and fixes the split dies on the first opening 11, and a plurality of adjusting screws 23 which have one ends penetrating through the die body 1 and the ends abutting on the split dies 21.

Example 2

This embodiment is similar to embodiment 1, except that in this embodiment:

As shown in fig. 2, the surrounding passage 40 includes a compression section 41 whose annular space is gradually reduced, a shaping section 42 whose annular space is gradually reduced and merges, and a minimum annular space section that communicates the compression section 41 with the shaping section 42, the compression section 41 communicates with the third opening 13, and the shaping section 42 communicates with the adjustable through hole 20. The pressurizing end and the forming section 42 can provide sufficient diversion compression space for the molten rubber diversion, the minimum annular gap section ensures that the molten rubber is tightly compressed, the molten rubber is guided to gradually form a hollow blank, the molten rubber is discharged in a ring-pressing type balance manner, and the steel wire can be uniformly coated with the thin-wall adhesive layer; the bush is designed to be adjustable, when there is a discharging deviation, the internal gap distribution of a plurality of split bush 21 can be adjusted through the adjusting screw 23, the deviation is corrected, the gap distribution of a plurality of split bush 21 can be adjusted, the sizing thickness can be adjusted, and the purposes of uniformly gluing steel wires and flexibly adjusting the sizing thickness can be realized through various measures and optimal design.

As shown in FIG. 2, the minimum annular gap section has a gap width e of 0.5mm to 0.8mm.

As shown in fig. 2, the adjustable through hole 20 includes a tapered hole and a direct current hole communicating as a funnel-shaped through hole, and as shown in fig. 3, the end of the mold core 3 is tapered and extends to the inside of the tapered hole, and the molding section 42 is composed of the inner wall of the tapered hole and the outer wall of the mold core 3.

As shown in fig. 2, the tip taper angle a of the core 3 is smaller than the converging angle b of the taper holes.

In this embodiment, the taper angle a of the tip of the mold core 3 and the converging angle b of the tapered hole are both acute angles smaller than 45 °.

The minimum annular gap e between the mold core 3 and the mold body 1 is controlled to be 0.5-0.8 mm, the glue coating thickness can be controlled to be 4-5 times, the tail end conical angle a of the mold core 3 is smaller than the converging angle b of the conical hole, and the tail end conical angle a of the mold core 3 and the converging angle b of the conical hole are acute angles smaller than 45 degrees, so that the balance of the discharging of the melt adhesive can be controlled, the steel wire can be uniformly coated on the glue layer with thin walls through the small gap, and the high-quality and high-efficiency production of the glue coating of the steel wire is realized.

Other structures and principles of this embodiment are the same as those of embodiment 1.

Example 3

This embodiment is similar to embodiment 2, except that in this embodiment:

As shown in fig. 3, one end of the wire passage 31 for the external wire to enter is a tapered opening 311, and the passage inner diameter d1 of the wire passage 31 is 0.1mm to 0.3mm larger than the diameter of the external wire. When the mould core 3 is designed, a conical opening 311 is designed at the rear end so as to guide the steel wire to enter the mould core 3 quickly.

In this embodiment, the length L of the wire passage 31 is 60 to 100 times the outer wire diameter.

The inner diameter d1 of the steel wire channel 31 is 0.1 mm-0.3 mm larger than the diameter of the external steel wire, the unilateral gap is controlled to be 0.05 mm-0.15 mm, the small gap can ensure the concentricity of the steel wire and the die, and meanwhile, the molten rubber can be prevented from flowing back to the steel wire penetrating port by combining a long process that the length L of the steel wire channel 31 is 60-100 times of the diameter of the external steel wire.

In this embodiment, the inner diameter d2 of the straight flow hole is 0.4mm to 0.6mm larger than the diameter of the outer wire. The unilateral gap between the straight flow hole and the steel wire is controlled to be between 0.2mm and 0.3mm, and the gap is larger than the gap between the mold core 3 and the steel wire, so that the molten adhesive is more extruded towards the direction of the die, and the molten adhesive is prevented from flowing back to the mold core 3.

Other structures and principles of this embodiment are the same as those of embodiment 2.

It is to be understood that the above examples of the present utility model are provided by way of illustration only and not by way of limitation of the embodiments of the present utility model. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims (10)

1. The utility model provides a steel wire surface rubber coating mould which characterized in that includes:

the die body (1) is provided with a melt adhesive channel, and the melt adhesive channel is provided with a first opening (11), a second opening (12) and a third opening (13);

a die fixed on the first opening (11) and having an adjustable through hole (20) with an adjustable caliber;

The mold core (3) is fixed at the second opening (12) and the other end of the mold core penetrates through the melt adhesive channel and extends to the first opening (11), a steel wire channel (31) for passing an external steel wire is formed in the mold core (3), and the steel wire channel (31) and the adjustable through hole (20) are coaxially arranged;

The outer wall of the die core (3) and the inner wall of the melt adhesive channel, and the outer wall of the die core (3) and the inner wall of the die form a surrounding channel (40), the surrounding channel (40) is communicated with the adjustable through hole (20), the external melt adhesive enters the melt adhesive channel from the third opening (13), flows through the surrounding channel (40) and is discharged from the adjustable through hole (20), and the external steel wire passes through the steel wire channel (31), passes through the surrounding channel (40) and is discharged from the adjustable through hole (20).

2. A steel wire surface gluing die according to claim 1, characterized in that the die comprises a plurality of split dies (21) which can be surrounded into the adjustable through holes (20), a die pressing plate (22) which is sleeved on the periphery of the split dies (21) and fixes the split dies on the first opening (11), and a plurality of adjusting screws (23) which penetrate through the die body (1) at one end and are abutted against the split dies (21) at the tail ends.

3. A wire surface gluing die according to claim 1, characterized in that said encircling channel (40) comprises a compression section (41) with gradually decreasing annular gap, a forming section (42) with gradually decreasing annular gap and converging annular gap, and a minimum annular gap section connecting said compression section (41) with said forming section (42), said compression section (41) being connected with said third opening (13), said forming section (42) being connected with said adjustable through hole (20).

4. A steel wire surface sizing die according to claim 3, wherein the minimum annular gap section has a gap width e of 0.5mm-0.8mm.

5. A wire surface gluing die according to claim 3, characterized in that said adjustable through holes (20) comprise a conical hole and a direct current hole communicating as a funnel-shaped through hole, the end of said mould core (3) being conical and extending into the interior of said conical hole, said profiled section (42) being composed of the inner wall of said conical hole and the outer wall of said mould core (3).

6. A steel wire surface gluing die according to claim 5, characterized in that the tip taper angle a of the die core (3) is smaller than the converging angle b of the taper holes.

7. A steel wire surface gluing die according to claim 6, characterized in that the end taper angle a of the die core (3) and the converging angle b of the taper holes are both acute angles smaller than 45 °.

8. A steel wire surface gluing mould according to claim 1, characterized in that the end of the steel wire channel (31) for the external steel wire to enter is a conical opening (311), the channel inner diameter d1 of the steel wire channel (31) is 0.1 mm-0.3 mm larger than the diameter of the external steel wire.

9. A wire surface gluing die according to claim 8, characterized in that the length L of the wire channel (31) is 60-100 times the outer wire diameter.

10. A steel wire surface sizing die as recited in claim 5, wherein the inner diameter d2 of the straight flow hole is 0.4mm to 0.6mm larger than the diameter of the outer steel wire.