CN102935712B - Threading mold for producing reinforcing band for strengthening thermoplastic plastic pipe - Google Patents
Threading mold for producing reinforcing band for strengthening thermoplastic plastic pipe Download PDFInfo
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- CN102935712B CN102935712B CN201210445632.XA CN201210445632A CN102935712B CN 102935712 B CN102935712 B CN 102935712B CN 201210445632 A CN201210445632 A CN 201210445632A CN 102935712 B CN102935712 B CN 102935712B
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- threading
- reinforcing band
- rope
- orifice plate
- wires hole
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Abstract
The invention discloses a threading mold for producing a reinforcing band for strengthening a thermoplastic plastic pipe. The threading mold comprises a base body and a threading hole plate, wherein threading holes are arranged on the threading hole plate side by side. The threading holes are square structures. The threading mold effectively solves the problem that silk ropes/cotton ropes are easily abraded and broken in the manufacturing process of the interlayer reinforcing band, effectively improves the rate of finished reinforcing band products manufactured by the silk ropes/cotton ropes, guarantees stable and continuous production and remarkably improved the production efficiency.
Description
Technical field
The present invention relates to reinforced thermoplastics pipe production technical field, particularly relate to a kind of when preparing reinforced thermoplastics pipe reinforcing band for arranging the mould of transferring metal silk rope or fiber thread rope.
Background technology
Reinforced thermoplastics pipe (Rein-forced Thermoplastic Pipe, be called for short RTP) developed in the early 1990s in last century, form primarily of three-decker, inside and outside layer is more than PE80 material, skin is optional white (earth's surface laying antiultraviolet) or black (buried laying) as required, the reinforcing band that intermediate layer is reinforcing material as wire or rope, fiber-like cotton rope are composited.Compared with common plastics multiple tube, RTP has withstand voltage height, good toughness, is convenient to features such as installing and lay, integrated cost is low, achieve Large diameter high pressure pipe material baling transport and construction, often roll up length and can reach 200 ~ 2000 meters, it is the force pipe that uniquely can reach this length at present, thus the jointing greatly reduced between tube and tube, speed of application improves decades of times, and transport and operating expenses reduce about 70%.Current RTP is successfully applied to oil transportation and natural gas transport field in a large number.In recent years, have also been obtained in the high-pressure delivery field of the industry such as chemical industry, municipal administration and widely popularize and use, and achieve significant effect and economic benefit.
In the manufacture process of the middle reinforcing band of RTP, need to use threading mould, namely the mould that arranges according to certain distance of, bridle rope/cotton rope supporting with the extrusion die on reinforcing band production equipment making it, which is provided with the through wires hole be arranged side by side, silk rope/cotton rope from through wires hole through running.As the integrality of its conveying of silk rope/cotton rope and compactness, the uniformity of arrangement of reinforcing material, directly have influence on quality and the serviceability of reinforcing band, thus its structural behaviour of threading mould of band processed is most important with use.
At present, the threading mould that prior art band adopts wherein between for threading orifice plate, the through wires hole that it arranges is circle.Although the through wires hole of circular configuration has good binding character for silk rope/cotton rope, in production practices, there is following technical problem:
(1) the bad silk rope/cotton rope of quality or surface are had to the silk rope/cotton rope of impregnate layer or coating, in long production run, the bur on silk rope/cotton rope surface can come off.Large and the gap such as everywhere of contact area due to circular port and silk rope/cotton rope, therefore the cast on silk rope/cotton rope surface can be piled up and be difficult to be taken away by silk rope/cotton rope, thus blocking through wires hole.Like this, in silk rope/cotton rope, certain one or more strands ofly can be separated gradually, rotates afterwards and produce " untwisting " phenomenon round main body, as can not be then got more and more and finally cause " fracture of wire " by control treatment in time.In actual production, because silk rope/cotton rope quantity is a lot, is difficult to all control well in time in the process reaching several hours, is therefore difficult to the problem avoiding fracture of wire, thus often can cause producing interruption, become a great problem that puzzlement is produced.And also must dismantle threading mould after fracture of wire, through wires hole is cleared up, thus greatly have impact on manufacturing schedule.
(2) quality requirement of through wires hole to silk rope/cotton rope of circular configuration is very high; and be only suitable for covering the preparation of moulding band for high-intensity fiber class cotton rope, high tensile steel wire rope or the enhancing of major diameter as 2.15mm steel wire rope; " fracture of wire " phenomenon often be there will be for the steel wire rope of minor diameter as 1.0mm, 1.2mm, 1.5mm etc.; applicability is limited, washability and flexibility poor.Such as, for the tubing that operating pressure is not high, can only select to reduce the quantity of steel wire rope for saving cost, and abandon the steel wire rope of selecting diameter less, to reduce " fracture of wire " phenomenon.If but selected the latter, the weight, flexible, steel wire coverage rate etc. of obvious tubing would have more advantage.
(3) the threading mould of prior art is all monolithic construction, and its threading orifice plate and die matrix are in one, and through wires hole is comparatively dark, and silk rope/cotton rope not easily passs through and the chance be worn is larger.When through production run through wires hole serious wear after a while, whole threading mould must be disassembled and repair or replace, not only lose time, and replacing can waste lot of materials, considerably increases production cost undoubtedly.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of reinforced thermoplastics pipe reinforcing band production threading mould is provided, to solve the problem of silk rope/cotton rope fracture of wire easy to wear in middle reinforcing band preparation process, thus ensure that stable the continuing produced carries out, and be conducive to significantly improving of production efficiency.
Object of the present invention is achieved by the following technical programs:
A kind of reinforced thermoplastics pipe reinforcing band production threading mould provided by the invention, comprises matrix and threading orifice plate, described threading orifice plate has been arranged side by side through wires hole; Described through wires hole is square structure.
The present invention adopts square through wires hole, the position of bridle rope/cotton rope is come by square hole edge length 4, while reaching constraint object, the contact area between through wires hole and silk rope/cotton rope can be reduced, effective minimizing active force each other, and then reduce through wires hole to the wearing and tearing of silk rope/cotton rope.In addition, square opening compared with circular port, when the diameter of circular port and the length of side of square opening consistent time, square opening obviously has larger area, and four of square opening angles are greater than the distance of circular port edge far from silk rope/cotton rope surface from the distance on silk rope/cotton rope surface.For this reason, when occurring that silk rope/cotton rope quality is bad and cause enlarged diameter and wire strands overlay coating to come off, silk rope/cotton rope is more easily by square through wires hole compared with circular port; And, cast is also more easily taken away by the silk rope/cotton rope advanced, thus can avoid causing the breaking phenomenon that occurs during enlarged diameter and wire strands overlay coating to come off the clogging caused when silk rope/cotton rope exists unfavorable condition, thus efficiently solve " fracture of wire " this important problem.
In order to ensure that silk rope/cotton rope passes through smoothly, the length of side of through wires hole of the present invention is compared with silk rope/large 0.2 ~ 0.6mm of cotton rope diameter.Four angles of described through wires hole are rounding dihedral.
For ease of dismounting and change, be detachable mosaic texture between threading orifice plate of the present invention and matrix.Such as, the middle part of described matrix is provided with in horizontal mounting groove, and the bottom of described mounting groove has the forming station hierarchic structure in horizontal through-hole groove; Described threading orifice plate is entrenched in mounting groove and through wires hole is corresponding with through-hole groove.For avoiding further and the contact of silk rope/cotton rope and reducing wear, described through-hole groove is advisable with the trumpet type in flaring.
For whole threading mould, threading orifice plate materials are relatively much few but requirement is higher, the present invention adopts the detachable structure be embedded on matrix of threading orifice plate, make the optional more wear-resisting material different from matrix of threading orifice plate, as mould steel, alloy material or the high-abrasive material etc. through surface coating process, cost-effective while, greatly can improve the service life of threading mould.
The present invention has following beneficial effect:
(1) through wires hole of the present invention adopts four angles to be the square of rounding, overcome the problem that the circular through wires hole of prior art is easy and silk rope/cotton rope weares and teares, cast is not easily pulled away and accumulates, avoid and cause the breaking phenomenon that occurs during enlarged diameter and wire strands overlay coating to come off the clogging caused when silk rope/cotton rope exists unfavorable condition, thus efficiently solve the difficult problem of " fracture of wire " in production practices, effectively improve yield rate and the production efficiency that reinforcing band made by silk rope/cotton rope, for stable the continuing produced carries out providing sound assurance.
(2) through wires hole of the present invention adopts four angles to be the square of rounding, and applicability is stronger, is applicable to the silk rope/cotton rope of major diameter or minor diameter, has good selective and use flexibility.
(3) matrix of the present invention and threading orifice plate are detachable mosaic texture, be convenient to maintain and replace, only threading orifice plate need be disassembled during maintenance and clear up, only threading orifice plate need be changed during serious wear, material more than 80% can be saved, reduce production cost, and greatly facilitate production maintenance, contribute to enhancing productivity.
(4) matrix of the present invention adopts staircase structural model, effectively saves material and ensure that the intensity of mould for threading, meanwhile shortening the degree of depth of through wires hole, be conducive to passing through smoothly of silk rope/cotton rope, and reduces the chance that silk rope/cotton rope worn and torn by through wires hole.
(5) threading orifice plate materials of the present invention are relatively few a lot, because it is detachable, therefore can selects the more wear-resisting material different from matrix, cost-effective while, substantially increase the service life of threading mould.
Accompanying drawing explanation
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail:
Fig. 1 is the structural representation of the embodiment of the present invention;
Fig. 2 is that silk embodiment illustrated in fig. 1 rope/cotton rope is through schematic diagram during through wires hole state;
Fig. 3 is the A-A sectional view of Fig. 1;
Fig. 4 is the B-B sectional view of Fig. 1.
In figure: matrix 1, fixing hole 11, dowel hole 12, runner hole 13, mounting groove 14, through-hole groove 15, threading orifice plate 2, through wires hole 21, silk rope/cotton rope 3
Detailed description of the invention
The embodiment of Fig. 1 ~ Figure 4 shows that a kind of reinforced thermoplastics pipe of the present invention reinforcing band production threading mould, as shown in Figure 1, comprise matrix 1 and threading orifice plate 2, matrix 1 and threading orifice plate 2 are the embedded structure of separable dismounting.Matrix 1 is provided with some fixing holes 11, two dowel holes 12 and two runner holes 13.Threading orifice plate 2 adopts mould steel, alloy material or the high-abrasive material through surface coating process.
As shown in Figure 1, threading orifice plate 2 shows square through wires hole 21 in transverse row.As shown in Figure 2, four angles of through wires hole 21 are rounding dihedral, and the length of side L of through wires hole 21 is compared with the large 0.2 ~ 0.6mm of diameter D of silk rope/cotton rope 3.
As shown in Figure 3 and Figure 4, the middle part of matrix 1 is provided with in horizontal mounting groove 14, and the bottom of mounting groove 14 has the forming station hierarchic structure in horizontal through-hole groove 15, and the trumpet type of through-hole groove 15 in flaring.Threading orifice plate 2 is entrenched in mounting groove 14 and through wires hole 21 is corresponding with through-hole groove 15.
Claims (5)
1. reinforced thermoplastics pipe reinforcing band is produced and is used a threading mould, comprises matrix (1) and threading orifice plate (2), described threading orifice plate (2) has been arranged side by side through wires hole (21); It is characterized in that: described through wires hole (21) is in square structure, and its four angles are rounding dihedral, and its length of side (L) is silk rope/cotton rope (3) diameter (D) large 0.2 ~ 0.6mm comparatively.
2. reinforced thermoplastics pipe reinforcing band production threading mould according to claim 1, is characterized in that: be detachable mosaic texture between described threading orifice plate (2) and matrix (1).
3. reinforced thermoplastics pipe reinforcing band production threading mould according to claim 2, it is characterized in that: the middle part of described matrix (1) is provided with in horizontal mounting groove (14), the bottom of described mounting groove (14) has the forming station hierarchic structure in horizontal through-hole groove (15); Described threading orifice plate (2) is entrenched in mounting groove (14) and through wires hole (21) is corresponding with through-hole groove (15).
4. reinforced thermoplastics pipe reinforcing band production threading mould according to claim 3, is characterized in that: described through-hole groove (15) trumpet type in flaring.
5. the reinforced thermoplastics pipe reinforcing band production threading mould according to Claims 2 or 3 or 4, is characterized in that: described threading orifice plate (2) is mould steel, alloy material or the high-abrasive material through surface coating process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210445632.XA CN102935712B (en) | 2012-11-08 | 2012-11-08 | Threading mold for producing reinforcing band for strengthening thermoplastic plastic pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210445632.XA CN102935712B (en) | 2012-11-08 | 2012-11-08 | Threading mold for producing reinforcing band for strengthening thermoplastic plastic pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102935712A CN102935712A (en) | 2013-02-20 |
| CN102935712B true CN102935712B (en) | 2015-06-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210445632.XA Expired - Fee Related CN102935712B (en) | 2012-11-08 | 2012-11-08 | Threading mold for producing reinforcing band for strengthening thermoplastic plastic pipe |
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| CN (1) | CN102935712B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201350671Y (en) * | 2009-01-19 | 2009-11-25 | 李志雄 | Reinforcing band making machine head of reinforced thermoplastic pipe |
| CN201931911U (en) * | 2010-11-30 | 2011-08-17 | 苏光明 | Combined threading hole sequin |
| CN202965138U (en) * | 2012-11-08 | 2013-06-05 | 广州励进新技术有限公司 | Threading mold for strengthening thermoplastic plastic pipe reinforcing band production |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2618344Y (en) * | 2003-03-24 | 2004-05-26 | 徐继根 | Integral porous threading square pipe |
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2012
- 2012-11-08 CN CN201210445632.XA patent/CN102935712B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201350671Y (en) * | 2009-01-19 | 2009-11-25 | 李志雄 | Reinforcing band making machine head of reinforced thermoplastic pipe |
| CN201931911U (en) * | 2010-11-30 | 2011-08-17 | 苏光明 | Combined threading hole sequin |
| CN202965138U (en) * | 2012-11-08 | 2013-06-05 | 广州励进新技术有限公司 | Threading mold for strengthening thermoplastic plastic pipe reinforcing band production |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102935712A (en) | 2013-02-20 |
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Granted publication date: 20150624 Termination date: 20181108 |