CN106426993A - Pipe making method of hot pressing plasticizing compound pipe - Google Patents

Abstract

The invention discloses a pipe making method of a hot pressing plasticizing compound pipe. The method comprises following making steps: raw materials are selected according to the mass ratio, paraffin is matched, and uniform mixing is carried out; a mixture is preheated in a preheating pipe and then is conveyed to a pipe making machine stock bin; the raw materials are shifted and fall into a pipe making feeding cavity through a feeding shifting rod or shifting piece; meanwhile, a pressing head in the pipe making feeding cavity carries out reciprocated pressing, and therefore the raw materials are continuously extruded into a mold; the mold is heated to enable the raw materials to begin to be plasticized and extruded under the effect of the heat mold; a cutting-off mechanism is started to cut off a forming pipe, the cut-off forming pipe is shifted into an aging bin to be aged; the inner surface and the outer surface of the aged forming pipe are pasted with craft paper, and the surfaces are coated with toning water base filler to be subject to waterproof, anti-static and color management treatment; finally, the pipe is packaged and warehoused according to the standard. According to the making method, the production technology of automatic filling and continuous hot pressing is adopted, the necessary condition is provided for marketization; in the production process, losses of a large amount of energy consumption and sewage draining in the paper using and making process can be reduced, and therefore the production cost is greatly reduced.

Description

A kind of hot pressing plastifies the pipe-making method of multiple tube

Technical field

The present invention relates to tube-making technology, specifically a kind of pipe-making method of hot pressing plasticizing multiple tube.

Background technology

The coiled material production processes such as the production of existing market flexible packaging film, papermaking, nonferrous metallurgy, weaving and finished product roll pipe used Material, mainly is first cut to become band by kraft paper, cop tube paper etc. and continuously rolls into all size after gluing on special bushing machine again Manage, and cut into entrance baking room after certain length according to design specification and carry out drying and shaping, carry out according to customer requirement again after sizing Different length cuts off, and blend compounds water is ground sealing after dirt process to cut-out port, packs family of seing a visitor out and uses.If customer requirement The tube surfaces producing are bright and clean and seamless, then the tubing after also needing drying and shaping carries out surface grinding and waxing polishing operation Afterwards, then after cutting end-blocking, packaging family of seing a visitor out uses.

The body being rolled using papery, because papery and the condition such as roll limit, is primarily present following shortcoming：

Paper using amount accounts for the 70% about of gross weight, great according to Pulp and Paper Engineering National Key Laboratory of South China Science ＆ Engineering University Shen Wen, Refined three people of Chen little Quan, Liu Huan are in modern industry volume 27 supplementary issue（2）On deliver " pulp and paper industry energy consumption statistic data base's Set up "：Pulping and paper-making ton energy consumption is up to 1.5 tons of standard coals and uses water more than more than 100 cubic metres, is put into China and forces performance Four big energy consumption industries of consumption limit standard, and first five Hui Sheng group of big paper tube paper manufacturing enterprise, Shandong century are only in the whole nation 2015 Sunlight etc. just produces paper tube paper more than 1,000,000 tons, calculates according to above usage standard and just needs 1,500,000 tons of usage standard coal and 100,000,000 to stand Square rice（Dongting Lake 178 billion cubic meter）.

There is about 1mm broad gap, the high-end wound membrane of impact uses, and every plunging breaker takes more than 10 meters, high-end user in coiling process Solve this clearance issues using being polished resinizing at present, but cost will improve more than 30%.

Comprcssive strength is not high enough, current domestic industry pipe standards internal diameter 76mm, and wall thickness 17mm is it is desirable to radial pressure is big In 1800N, far do not reach the above radial direction compressive resistance of superelevation resistance to compression pipe standards 2300N, cause flexible film when rolling packaging, Chang Yin The pressurized contraction of tubing in coiling process, thus leading to wound membrane to produce fold, fold impact uses and wastes wound membrane, but double-strength pipe Material at present can only import.

4. recycle be worth not high because the water absorption of paper is preferably, paper tube used once after because water suction be deliquescing, together When, paper tube production Shi Ge producer surfaces externally and internally size difference is larger, mostly takes at present and makees waste recovery after being once finished, but Paper tube needs to add a large amount of glue etc. in coiling process, all has harmful effect to papermaking quality and cost, therefore paper mill is also less It is ready to reclaim.

Content of the invention

For the problems of above-mentioned prior art, it is an object of the invention to provide a kind of process is simple, effectively reduction Environmental pollution and the manufacture method of the high-end full-automation of quality.

For reaching above-mentioned purpose, the technical solution adopted in the present invention is：A kind of hot pressing plastifies the pipe-making method of multiple tube, Be characterized in it is characterized in that, including following manufacturing step：

（1）Applying wax mixes：Require according to tubulation category, choose raw material in mass ratio, paraffin of arranging in pairs or groups, carry out mix homogeneously；

（2）Helical feed：Mixed raw material is transported in the economizer bank before tuber using conveying worm；

（3）Pre- heated conveying：Compound is preheated to 100 ° about rear screws in economizer bank and is delivered in tuber feed bin；

（4）Stir pan feeding：After starting the motor of tuber, pan feeding driving lever or plectrum, under motor drive, stir raw material in feed bin Drop into tubulation pan feeding chamber；

（5）It is pushed down into mould：While blanking, the pressure head of tubulation pan feeding intracavity back and forth pushes, and raw material is constantly squeezed into mould In tool；

（6）Plasticizing forming：Heating mould, makes raw material start plasticizing forming under the mould action of hyperpyrexia, and with pressure head not Break and depress and the port of export extrusion from mould；

（7）Guiding output：The formed pipe of extrusion is adjusted under close device effect in interior axle guider and trustship, in interior axle guider Middle stepping is descending；

（8）Cut-out is aging：When the formed pipe pipe range of extrusion reaches established standardses, formed pipe is cut off by shut-off mechanism startup, cuts The formed pipe having no progeny passes through Qu Guan mechanism and takes out to be put on conveyer belt to concentrate to proceed in aging storehouse aging more than 24 hours it is ensured that one-tenth Type pipe plastifies completely；

（9）Surface treatment：The surfaces externally and internally of formed pipe after weathering sticks craft paper, then applies toning aqueous putty on surface Carry out water proofing property, antistatic and color management to process；

（10）Severing is packed：Formed pipe after will be good for surface treatment, according to requiring to carry out severing, plus cured, then carries out after section tempers It is packaged into stock according to mark.

Preferably, described step（3）Middle preheating bull ladle enclosed tool main pipe flowing thermal source preheating and helical feed, make entrance system The material temperature in pipe pan feeding chamber be maintained at 100 ° it is ensured that hot pressing plasticizing improved efficiency.

Preferably, described step（5）In pressure head be to drive by the hydraulic cylinder of Hydraulic Station to realize pushing or returning, electricity Machine rotates simultaneously, and the motor in synchrony of Hydraulic Station starts, and oil cylinder starts operation, oil cylinder according to the pressure setting and the program setting Pressure head is promoted to push, pressure head during pushing, raw material is squeezed in mould, pressure head reaches and returns during lower limit, returns to Again raw material is pushed entrance mould when spacing, pushing or returning of described pressure head is the 2-5 second.

Preferably, described tuber is provided with two tubulation pan feeding chambeies, include in each tubulation pan feeding chamber a pressure head and Die material, described Hydraulic Station each tubulation pan feeding chamber corresponding is provided with a hydraulic cylinder, when one of hydraulic cylinder band dynamic head When pushing, another hydraulic cylinder drives another pressure head to return.

Preferably, described step（6）In mould include the reducing interior axle of 3-6 ° of angle and 1.1-1.2 reducing ratio and outer Pipe, all using electrified regulation in internal diameter and outer tube during work, makes the temperature of mould be maintained between 180 ° -210 °.

Preferably, described step（6）In progressively formed pipe after plasticizing forming need in mould pressurize 130s, just with The continuous pressure of pressure head and extrude it is ensured that plastifying ratio more thoroughly from the port of export of mould.

Preferably, the internal-and external diameter design stepped of described pressure head, being extruded into extreme position under pressure head is each is mould reducing Top 0.5mm place, leave reverse embryo shape when pressure head returns, described reverse embryo shape ensure that next batch of material be pressed into when with this group The dislocation having 4-6mm between material couples, and increased coupling force.

Preferably, the internal model of described mould is provided with the interior aerofluxuss seam that segmented line is cut, and the external mold of described mould is provided with and internal model Interior aerofluxuss slit become the outer aerofluxuss seam of dislocation, pressure head passes through described interior aerofluxuss seam during pushing and outer aerofluxuss are stitched and arranged Gas.

Preferably, described step（7）In guiding output include following sub-step：

1. interior axle guiding：Docked with mould internal model by the removable interior axle of interior axle guider, make to squeeze from the port of export of mould It is descending that the plasticizing forming pipe going out enters stepping in this interior axle guider；

2. trustship is walked out of：Trustship adjusts close device to be arranged on the out-feed head of formed pipe, and trustship adjusts the supporting plate of close device to hold this one-tenth Type pipe, with the output of formed pipe, supporting plate and plasticizing forming pipe export DL synchronization.

Preferably, described step（9）In surface treatment include following sub-step：

1. interior axle paster：Stick craft paper in the interior axle apparatus surface that can expand axle 2-3mm, then coat paper tube on craft paper surface Glue, then by this interior shaft device feeding hot pressing plasticizing pipe, finally carries out expanding shaft device in axle extraction after sizing, realizing will Craft paper is affixed on the inwall that hot pressing plastifies pipe；

2. outer tube coil paper：In rolling machine upper berth craft paper and coat paper tube adhesive, then the hot pressing plasticizing pipe after interior axle paster is put Coil paper is carried out on this rolling machine, layer 2-4 craft paper rolled up by outer tube；

3. fill and lead up gap：With aqueous putty while coil paper to coil paper after surface can shape 1mm about gap be filled with mixing Flat；

4. surface coating：Air-dry polishing with toning aqueous putty after the surface coating about 2-5 m of coil paper.

The invention has the beneficial effects as follows：

（1）The manufacture method of the present invention employs the production technology of automated packing continuous hot-press molding, makes production efficiency than existing Improve more than 5 times, and a large amount of energy consumptions loss in minimizing paper and paper-making process in production process and sewage discharge, from And substantially reduce production cost；

（2）Can continuously shaped produce（The tubing of endless can be produced in theory）With can set automatically block technique, for it The marketization is promoted and is created sufficient condition；

（3）Made hot pressing plasticizing multiple tube under 8mm wall thickness its comprcssive strength up to more than 2000N, far super present paper Pipe, and the tubing made by this way is seamless tubular goods, therefore its comprcssive strength is high, can meet high demand.

Specific embodiment

A kind of hot pressing that this embodiment provides plastifies the pipe-making method of multiple tube, is characterized in including following manufacturing step：

（1）Applying wax mixes：Require according to tubulation category, choose raw material in mass ratio, paraffin of arranging in pairs or groups, carry out mix homogeneously；

（2）Helical feed：Mixed raw material is transported in the economizer bank before tuber using conveying worm；

（3）Pre- heated conveying：Compound is preheated to 100 ° about rear screws in economizer bank and is delivered in tuber feed bin；

（4）Stir pan feeding：After starting the motor of tuber, pan feeding driving lever or plectrum, under motor drive, stir raw material in feed bin Drop into tubulation pan feeding chamber；

（5）It is pushed down into mould：While blanking, the pressure head of tubulation pan feeding intracavity back and forth pushes, and raw material is constantly squeezed into mould In tool；

（6）Plasticizing forming：Heating mould, makes raw material start plasticizing forming under the mould action of hyperpyrexia, and with pressure head not Break and depress and the port of export extrusion from mould；

（7）Guiding output：The formed pipe of extrusion is adjusted under close device effect in interior axle guider and trustship, in interior axle guider Middle stepping is descending；

（8）Cut-out is aging：When the formed pipe pipe range of extrusion reaches established standardses, formed pipe is cut off by shut-off mechanism startup, cuts The formed pipe having no progeny passes through Qu Guan mechanism and takes out to be put on conveyer belt to concentrate to proceed in aging storehouse aging more than 24 hours it is ensured that one-tenth Type pipe plastifies completely；

（9）Surface treatment：The surfaces externally and internally of formed pipe after weathering sticks craft paper, then applies toning aqueous putty on surface Carry out water proofing property, antistatic and color management to process；

（10）Severing is packed：Formed pipe after will be good for surface treatment, according to requiring to carry out severing, plus cured, then carries out after section tempers It is packaged into stock according to mark.

This embodiment, in preheating transport portion, is provided with casing flowing thermal source preheating and two devices of helical feed, from And enable entrance tubulation pan feeding chamber material temperature be maintained at 100 ° about it is ensured that hot pressing plasticizing improved efficiency.This embodiment Tuber be provided with two tubulation pan feeding chambeies, include a pressure head and die material, described hydraulic pressure in each tubulation pan feeding chamber Each tubulation pan feeding chamber of correspondence of standing is provided with a hydraulic cylinder, when one of hydraulic cylinder band dynamic head pushes, another hydraulic pressure Cylinder drives another pressure head to return.The die material of this embodiment includes reducing interior axle and the outer tube of 5 ° of angles and 1.2 reducings ratio, During work in internal diameter and outer tube equal electrified regulation, make the temperature of die material be maintained at 185 ° about.Under oil cylinder pushing pressure head Pressure, pressure head drives raw material together to enter extruding guide section during pushing, and press-in die small end, and pressure head reaches lower limit When, pressure head returns, when returning to upper limit, then row pressure, when pressure head runs, rod for stiring materials not stall always is moved, and raw material is dialled in Tubulation pan feeding intracavity, pressure head pushes again, is about 3s when pushing, and is about 3s during rising.The die material of this embodiment inside and outside Mould is about 500mm, single pushes process about 15mm, progressively plasticizing forming aftershaping pipe need in mould release of pressure 130s.For Increase coupling force, the internal-and external diameter of pressure head is designed stepped by this embodiment, and being extruded into extreme position under pressure head is each is mould At 0.5mm above reducing, leave reverse embryo shape when pressure head returns, described reverse embryo shape ensure that next batch of material press-in when and The dislocation having 5mm between this group material couples, and increased coupling force.When depressing every time due to pressure head, have air in fiber material, separately Moisture containing 6%-8% and paraffin oxidation in exopathogenic factor fiber material, and the die material of plasticizing forming reaches 500mm length again, therefore in order to keep away Exempt from gas to discharge from lower end and produce high pressure and blow out phenomenon, this embodiment is provided with segmented line and cuts row in the internal model of die material Air cleft is exhausted, and further is provided with to become the line of dislocation to cut aerofluxuss with the aerofluxuss slit of internal model to stitch in the external mold of die material again Combination exhaust is it is ensured that exhaust effect.

Formed pipe is during exporting from die material, because formed pipe temperature now is also higher and not yet complete Full sizing, therefore the axiality in order to ensure this formed pipe and perpendicularity, this embodiment is provided with guiding in the lower section of die material Mechanism, this formed pipe can in this guiding mechanism stepping descending.Further, export more and more longer, molding with formed pipe Pipe weight is continuously increased, and for preventing gravity from breaking the formed pipe of this not plasticizing completely, this embodiment increases in the head of output Pressure pin mechanism, in order to hold the head of formed pipe, pressure head pushes stepping, and the pressure pin of pressure pin mechanism steps in synchronization, and that is, pipe range support is moved back； Further, in order to prevent pressure pin mechanism not exclusively synchronous, this embodiment installs scalable 100mm elasticity in pressure pin mechanism additional Mechanism finely tunes, and meanwhile, by adjusting this displacement, also can produce the resistance to displacement adjusting formed pipe, thus being directly realized tune Section formed pipe density.

General formed pipe is long with 3 meters, and the formed pipe after cut-out is together deposited after the taking-up of Qu Guan mechanism together with the axis of guide After putting 2 hours, take out the axis of guide, allow formed pipe to concentrate from conveyer belt and proceed in aging cabin aging more than 20 hours it is ensured that one-tenth The plasticizing effect of type pipe；It is surface-treated as needed afterwards, the surface treatment of this embodiment includes following sub-step：

1. interior axle paster：Stick craft paper in the interior axle apparatus surface that can expand axle 2-3mm, then coat paper tube on craft paper surface Glue, then by this interior shaft device feeding hot pressing plasticizing pipe, finally carries out expanding shaft device in axle extraction after sizing, realizing will Craft paper is affixed on the inwall that hot pressing plastifies pipe；

2. outer tube coil paper：In rolling machine upper berth craft paper and coat paper tube adhesive, then the hot pressing plasticizing pipe after interior axle paster is put Coil paper is carried out on this rolling machine, 2 layers of craft paper rolled up by outer tube；

3. fill and lead up gap：With aqueous putty while coil paper to coil paper after surface can shape 1mm about gap be filled with mixing Flat；

4. surface coating：Air-dry polishing with toning aqueous putty after surface coating about 5 m of coil paper.

Hot pressing plasticizing pipe surface paster can lift longitudinal pulling force, increased the anti-pressure ability of product simultaneously, also reach more Good surface smooth effect and antistatic, then the coil paper surfaces externally and internally that plastifies multiple tube in hot pressing repastes and once mixes colours according to need Aqueous putty, such formed pipe smooths dustless and antistatic on surface and color management is all well solved.Finally Formed pipe is bundled in groups according to 3 meters/root, is distributed to sales agent warehouse after simple packaging, sales agent is according to customer demand It is truncated into customer demand size, two ends is blocked with section simultaneously and utilizes PUR envelope to apply, reduce hot pressing plasticizing multiple tube two ends and inhale Aqueouss, family of seing a visitor out after spermatophore dress.

Although the present invention is to be described with reference to specific embodiments, this description is not meant to constitute limit to the present invention System.With reference to description of the invention, other changes of the disclosed embodiments, it is all to be anticipated that for those skilled in the art , this change should belong in appended claims limited range.

Claims (10)

1. a kind of hot pressing plastifies the pipe-making method of multiple tube it is characterised in that including following manufacturing step：

（1）Applying wax mixes：Require according to tubulation category, choose raw material in mass ratio, paraffin of arranging in pairs or groups, carry out mix homogeneously；

（2）Helical feed：Mixed raw material is transported in the economizer bank before tuber using conveying worm；

（3）Pre- heated conveying：Compound is preheated to 100 ° about rear screws in economizer bank and is delivered in tuber feed bin；

（4）Stir pan feeding：After starting the motor of tuber, pan feeding driving lever or plectrum, under motor drive, stir raw material in feed bin Drop into tubulation pan feeding chamber；

（5）It is pushed down into mould：While blanking, the pressure head of tubulation pan feeding intracavity back and forth pushes, and raw material is constantly squeezed into mould In tool；

（6）Plasticizing forming：Heating mould, makes raw material start plasticizing forming under the mould action of hyperpyrexia, and with pressure head not Break and depress and the port of export extrusion from mould；

（7）Guiding output：The formed pipe of extrusion is adjusted under close device effect in interior axle guider and trustship, in interior axle guider Middle stepping is descending；

（8）Cut-out is aging：When the formed pipe pipe range of extrusion reaches established standardses, formed pipe is cut off by shut-off mechanism startup, cuts The formed pipe having no progeny passes through Qu Guan mechanism and takes out to be put on conveyer belt to concentrate to proceed in aging storehouse aging more than 24 hours it is ensured that one-tenth Type pipe plastifies completely；

（9）Surface treatment：The surfaces externally and internally of formed pipe after weathering sticks craft paper, then applies toning aqueous putty on surface Carry out water proofing property, antistatic and color management to process；

（10）Severing is packed：Formed pipe after will be good for surface treatment, according to requiring to carry out severing, plus cured, then carries out after section tempers It is packaged into stock according to mark.

2. hot pressing according to claim 1 plastifies the pipe-making method of multiple tube it is characterised in that described step（3）In pre- Heated conveying includes casing flowing thermal source preheating and helical feed, makes the material temperature in entrance tubulation pan feeding chamber be maintained at 100 °, Guarantee the improved efficiency of hot pressing plasticizing.

3. hot pressing according to claim 1 plastifies the pipe-making method of multiple tube it is characterised in that described step（5）In Pressure head is to drive by the hydraulic cylinder of Hydraulic Station to realize pushing or returning, and motor rotates simultaneously, and the motor in synchrony of Hydraulic Station opens Dynamic, oil cylinder starts operation according to the pressure setting and the program setting, and oil cylinder pushing pressure head pushes, and pressure head is during pushing Raw material is squeezed in mould, pressure head reaches and returns during lower limit, returns to and again raw material is pushed entrance mould during upper limit, Pushing or returning of described pressure head is the 2-5 second.

4. hot pressing according to claim 3 plastifies the pipe-making method of multiple tube it is characterised in that described tuber is provided with two Individual tubulation pan feeding chamber, includes a pressure head and die material in each tubulation pan feeding chamber, described Hydraulic Station corresponds to each tubulation Pan feeding chamber is provided with a hydraulic cylinder, and when one of hydraulic cylinder band dynamic head pushes, another hydraulic cylinder drives another pressure Head returns.

5. hot pressing according to claim 1 plastifies the pipe-making method of multiple tube it is characterised in that described step（6）In Mould includes reducing interior axle and the outer tube of 3-6 ° of angle and 1.1-1.2 reducing ratio, all using logical in internal diameter and outer tube during work Electrical heating, makes the temperature of mould be maintained between 180 ° -210 °.

6. hot pressing according to claim 5 plastifies the pipe-making method of multiple tube it is characterised in that described step（6）In by Formed pipe after step plasticizing forming need to pressurize 130s, the just outlet from mould with the continuous pressure of pressure head in mould End extrusion.

7. the compound pipe-making method of continuous hot-press according to claim 1 plasticizing is it is characterised in that the internal-and external diameter of described pressure head Design stepped, being extruded into extreme position under pressure head is each is at 0.5mm above mould reducing, stays when pressure head returns reversely Embryo shape, described reverse embryo shape ensure that the dislocation that next batch of material has 4-6mm in press-in and this group material between couples, and increased connection Relay.

8. hot pressing according to claim 1 plastifies the pipe-making method of multiple tube it is characterised in that the internal model of described mould sets There is the interior aerofluxuss seam that segmented line is cut, the external mold of described mould is provided with the outer aerofluxuss seam becoming dislocation with the interior aerofluxuss slit of internal model, pressure Head is stitched by described interior aerofluxuss during pushing and outer aerofluxuss seam is exhausted.

9. hot pressing according to claim 1 plastifies the pipe-making method of multiple tube it is characterised in that described step（7）In Guiding output includes following sub-step：

1. interior axle guiding：Docked with mould internal model by the removable interior axle of interior axle guider, make to squeeze from the port of export of mould It is descending that the plasticizing forming pipe going out enters stepping in this interior axle guider；

2. trustship is walked out of：Trustship adjusts close device to be arranged on the out-feed head of formed pipe, and trustship adjusts the supporting plate of close device to hold this one-tenth Type pipe, with the output of formed pipe, supporting plate and plasticizing forming pipe export DL synchronization.

10. hot pressing according to claim 1 plastifies the pipe-making method of multiple tube it is characterised in that described step（9）In Surface treatment includes following sub-step：

1. interior axle paster：Stick craft paper in the interior axle apparatus surface that can expand axle 2-3mm, then coat paper tube on craft paper surface Glue, then by this interior shaft device feeding hot pressing plasticizing pipe, finally carries out expanding shaft device in axle extraction after sizing, realizing will Craft paper is affixed on the inwall that hot pressing plastifies pipe；

2. outer tube coil paper：In rolling machine upper berth craft paper and coat paper tube adhesive, then the hot pressing plasticizing pipe after interior axle paster is put Coil paper is carried out on this rolling machine, layer 2-4 craft paper rolled up by outer tube；

3. fill and lead up gap：With aqueous putty while coil paper to coil paper after surface can shape 1mm about gap be filled with mixing Flat；

4. surface coating：Air-dry polishing with toning aqueous putty after the surface coating about 2-5 m of coil paper.