CN1986201A - Hot extruding and cold pressing process for forming plastic inspection well - Google Patents
Hot extruding and cold pressing process for forming plastic inspection well Download PDFInfo
- Publication number
- CN1986201A CN1986201A CNA2006100225640A CN200610022564A CN1986201A CN 1986201 A CN1986201 A CN 1986201A CN A2006100225640 A CNA2006100225640 A CN A2006100225640A CN 200610022564 A CN200610022564 A CN 200610022564A CN 1986201 A CN1986201 A CN 1986201A
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- die
- punch
- inspection well
- oil cylinder
- storing mould
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- B29C47/92—
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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The hot extruding and cold pressing process for forming plastic inspection well includes the following steps: heating plastic inside the plastic extruder to 180-240 deg.c, extruding the molten plastic from the plastic extruder to the heat insulating storing mold, maintaining the heat insulating storing mold at 160-220 deg.c and 100-400 KN, extruding molten plastic in 2-80 kg into the forming cavity mod, moving the forming female mod transversely for matching with the male mold and pressurizing the male mold into the female mod at 1000-5000 KN, cooling the female mode for 10-30 min while maintaining at 200-500 KN, and removing the male mold to obtain the product. The present invention is simple, low in cost and high in production cost.
Description
Technical field
The present invention relates to a kind of inspection shaft manufacturing equipment, relate in particular to a kind of method of hot extruding and cold press plastic inspection well.
Background technology
Plastic inspection well generally adopts injection moulding process production, and injection moulding formula forming method is that large-scale plastic injection equipment of employing and injection mold are former, and plastic injection equipment mainly is made up of clamping mechanism, injection mechanism, electric control system, hydraulic control system.The punch die of plastic inspection well or parts mould is installed in respectively on the front and back template of clamping mechanism.Its operation principle is: utilize electrical control gear and hydraulic control device that the front and back template of clamping mechanism is closed up; punch die before and after being installed in respectively on the template is closed to be one; start the hydraulic system of injection mechanism; make pressure more than 100 tons; mould is released and filled with to screw rod to the plastics high pressure that has plastified in the barrel; the cooling back is opened clamping apparatus and is separated punch-die, takes out in type plastic inspection well or parts.The production equipment complex structure that this kind forming method adopts, the mould of employing be various, cost an arm and a leg, and it is higher to lead the system product cost, therefore, is unfavorable for generally applying in residential quarters, the urban construction at home.Because the tapering and eccentric type plastic checking-well cost is higher; cause domestic blowdown pipe network still to adopt brick inspection shaft; but brick inspection shaft self antiseep effect is undesirable; more because the high speed development of chemical building material such as plastics etc.; domestic blowdown pipe network adopts plastic conduit in a large number; and brick inspection shaft can not solve leakage problems when causing being connected with plastic conduit material difference, is unfavorable for environmental protection.
The Wrapping formed mode of the employing that also has, and the above inspection shaft of diameter 1000mm must close up, off-centre, " closing in " is because the inspection shaft well lid is φ 700mm or φ 800mm, the main well body transition more than the 1000mm must be contracted to φ 700mm or φ 800mm; " off-centre " is meant that the well head that will be positioned at the inspection shaft axle center moves near the borehole wall, purpose be make mark time from the shaft bottom to the borehole wall vertical, when the workman overhauls along adhere to borehole wall setting marking time up and down the time safety." tapering and eccentric type plastic checking-well because the Wrapping formed mode of cylinder is the cylinder rotation of several tapered distributions, utilizes the frictional force of cylinder rotation that the plastic blank pipe is twined the molten bullet that sticks into but Wrapping formed mode can not be produced again.The decision of its operation principle can't carry out the transition to the major diameter forming surface borehole wall twining the medium-small diameter forming surface borehole wall, thereby can only produce closing in type plastic inspection well or upper well body, can not produce and not only close up but also eccentric plastic inspection well or upper well body.The employing loose tool that also has rotates Wrapping formed mode, when this mode is the 360 degree rotations of loose tool self do the plastic blank pipe is twined the molten borehole wall that sticks into, though Wrapping formed tapering and eccentric type plastic checking-well of energy or upper well body, but, can not guarantee molten cement amount and Wrapping formed quality owing to plastic blank pipe positioner can't be installed and solve plastics melting material and the equidistant equivalent problem of loose tool.
Summary of the invention
The objective of the invention is to overcome the problems referred to above that existing method of producing plastic inspection well exists, a kind of method of hot extruding and cold press plastic inspection well is provided.Technology of the present invention is simple, and the corollary equipment of employing is simple in structure, cost is lower, the production efficiency height, and guaranteed plastic inspection well or its part quality of moulding.
For achieving the above object, the technical solution used in the present invention is as follows:
A kind of method of hot extruding and cold press plastic inspection well is characterized in that:
A, startup plastic extruder, with temperature is that 180-240 degree melting plastics are extruded in the insulation storing mould, keeping insulation storing mould temperature at the 160-220 degree, when insulation storing molding pressure is 100KN-400KN, is that the melting plastics of 2kg-80kg are clamp-oned in the molding concave die with quality;
B, horizontal mobile molding concave die to the punch cooperation place, punch is pressed in the die during for 1000KN-5000KN at pressure;
C, keep-up pressure at 200KN-500KN, cooling die 10-30 minute shifts out punch, obtains the plastic inspection well or the parts of moulding.
Described die laterally is slidingly arranged on the frame, and described punch vertically is slidingly arranged on the frame, and described plastic extruder discharging opening is connected with insulation storing mould; Two stations that described die laterally slides are corresponding with insulation storing mould discharging opening and punch respectively.
Described die is slidingly arranged on the horizontal moving track on the frame, and the moving track of die and punch cooperation place is provided with the die positioner.
Described insulation storing mould is provided with the attemperating unit that is communicated with the electric control gear lead.
Described die moves oil cylinder by die and drives, and punch moves oil cylinder by die casting and drives.
Described insulation storing mould is provided with by the storing mould and moves the hydraulic pressure material-pulling device that oil cylinder drives.
Also be provided with on the described frame respectively and move oil cylinder with die, oil cylinder is moved in die casting and the storing mould moves the fuel feeding hydraulic means that oil cylinder is communicated with.
Employing the invention has the advantages that:
1, the present invention easy and simple to handle, significantly reduced operation, production efficiency is improved more than 5 times.
2, adopt the present invention can moulding closing in type or tapering and eccentric type plastic checking-well, again can moulding plastics inspection shaft parts.
3, adopt the inspection shaft of the inspection shaft of moulding of the present invention or its parts and the moulding of injection moulding formula production method or its component technology index, physical property identical, but reduced production cost.
4, the equipment of the present invention expense that drops into is produced plastic inspection well far below the injection moulding formula, is approximately 1/5th of the injection moulding formula mode of production.
5, the present invention is more superior than inspection shaft or its modular construction of the moulding of canoe production method, as insertion and combination type plastic inspection well parts.
6, the inspection shaft of moulding of the present invention or its parts apparent size accuracy are higher than the wound form production method far away.
7, the die of present device and punch cooperation place are provided with the die positioner, and making the die of filling the melting plastics slide into punch following time can accurately locate, and can lock die, makes things convenient for the die cast and the demoulding.
Description of drawings
The device structure schematic diagram that Fig. 1 adopts for the present invention
Be labeled as among the figure: 1, electric control gear, 2, frame, 3, plastic extruder, 4, die, 5, punch, 6, insulation storing mould, 7, die moves oil cylinder, 8, die casting moves oil cylinder, 9, the storing mould moves oil cylinder, 10, the fuel feeding hydraulic means, 11, main motor.
The specific embodiment
Embodiment 1
Technology of the present invention is as follows: a, with the plastic raw materials in the plastic extruder 3 be heated to 240 the degree, start plastic extruder 3, the melting plastics are extruded in the insulation storing mould 6, keep insulation storing mould 6 temperature at 220 degree, when insulation storing mould 6 pressure are 400KN, be that the melting plastics of 80kg are clamp-oned in the molding concave die 4 with quality; B, horizontal mobile molding concave die 4 to punch 5 cooperation places, punch 5 is pressed in the die 4 during for 5000KN at pressure; C, keep-up pressure at 500KN, cooling die 30 minutes shifts out punch 5, obtains the plastic inspection well of moulding.
In the equipment that the present invention adopts, die 4 laterally is slidingly arranged on the frame 2, and punch 5 vertically is slidingly arranged on the frame 2, and plastic extruder 3 discharging openings are connected with insulation storing mould 6; Two stations that die 4 laterally slides are corresponding with insulation storing mould 6 discharging openings and punch 5 respectively.Die 4 is slidingly arranged on the horizontal moving track on the frame 2, and die 4 is provided with the die positioner with the moving track of punch 5 cooperation places.Insulation storing mould 6 is provided with the attemperating unit that is communicated with electric control gear 1 lead.Die 4 moves oil cylinder 7 by die and drives, and punch 5 moves oil cylinder 8 by die casting and drives.Insulation storing mould 6 is provided with by the storing mould and moves the hydraulic pressure material-pulling device that oil cylinder 9 drives.Also be provided with on the frame 2 respectively and move oil cylinder 7 with die, oil cylinder 8 is moved in die casting and the storing mould moves the fuel feeding hydraulic means 10 that oil cylinder 9 is communicated with.
Plastic extruder 3 temperature sections are controlled at the 60-240 degree, and the barrel place temperature that is about to plastic extruder 3 is arranged on 60 degree, and barrel raises gradually to head temperature, and head place temperature is the 180-240 degree, adds plastic raw materials; Insulation storing mould 6 has charging hole and is connected with plastic extruder 3 barrels, makes the screw rod rotation will clamp-on insulation storing mould 6 after the plastics melting thereby start main motor 11, and the effect of insulation storing mould 6 is to use when storing the plastics die casting that has plastified.Insulation storing mould 6 is outside equipped with heater, and has power line to connect the attemperating unit of electric control gear 1, guarantees that insulation storing mould 6 temperature are in 220 degree scopes; The outer operated by rotary motion of plastic extruder 3 barrels has 5-12 heating collar, per 1 heating collar is called 1 section, and be provided with temperature measurer such as temperature control devices such as thermocouple and temperature controller and carry out temperature control, the plastics place of entering is about general 60 degree of charging aperture section temperature, rise to gradually about 240 degree from the charging aperture section toward plastics extrusion temperature according to technological requirement, set by attemperating unit respectively and the control temperature for per 1 section, so be called segmentation control.Insulation storing mould 6 tops are moved oil cylinder 9 with the storing mould of hydraulic pressure material-pulling device and are connected, and the storing mould moves in the oil cylinder 9 piston and moves down after plastifying plastics well in that insulation storing mould 6 villages are full, material is sent to the die 4 of compression mod., the storing mould moves oil cylinder 9 usefulness support bodys and is fixed on plastic extruder 3 ports of export.
In plastic extruder 3 work, the die 4 of plastic inspection well or parts compression mod is moved to insulation storing mould 6 times along horizontal moving track, waiting to be incubated storing mould 6 melting plastics material amounts reaches in the time of satisfying goods as a plastic inspection well requirement, start the hydraulic pressure material-pulling device, the melting plastics are packed in the die 4 fast, move oil cylinder 7 by die again, the horizontal moving track in edge is transplanted on 5 times position and locks of punch of compression mod fast, and laterally moving track is provided with positioner such as alignment pin or locating piece to die 4 position and locks.Restart the die casting of die casting hydraulic system and move oil cylinder 8, punch 5 is pressed in the die 4, open the cooling device cooling and shaping on the die 4.Cooling device can adopt water-cooled or air-cooled, and water-cooled is that cooling water channel is set on the mould, and air-cooled is powerful blower fan blast-cold.And then on move and make behind the punch 5 it break away from die 4, take out the plastic inspection well of moulding in the die 4, should keep-up pressure during cooling always, its objective is to make workpiece stress and being out of shape not in cooling procedure.
Also dispose 10 pairs of storing moulds of fuel feeding hydraulic means in the equipment that the present invention adopts and move oil cylinder 9, oil cylinder 8 is moved in die casting, die moves oil cylinder 7 supply pressure oil, finish mobile to promote oil cylinder piston, each oil cylinder and fuel feeding hydraulic means 10 connect to form hydraulic system by pipeline, fuel feeding hydraulic means 10 is actual to be a concentrated voltage supply device, by fuel tank and various valve such as overflow valve, stop valve, pipelines such as reversal valve constitute, its objective is sap pressure supply power by all kinds of means, make again its hydraulic system in entire equipment constitutes with respect to dispersion liquid pressing system sap pressure supply power compactness, it is less to take up space, fuel feeding hydraulic means 10 is supplied with power by motor, and carries out rotating speed and pressure control by the electric control system of electric control gear 1.Also can not adopt the 10 concentrated voltage supply of fuel feeding hydraulic means and the voltage supply respectively of a plurality of live hydraulic systems is set.And the startup of each oil cylinder, stop and job order is finished by the control system of electric control gear 1.According to inspection shaft specification size, materials amount what, selecting diameter for use is 1 or several of 90-200mm plastic extruder.
Insulation storing mould 6 has the connecting hole that is connected with plastic extruder 3 barrels, can enter 6 storages of insulation storing mould after making the plastics plasticizing, insulation storing mould 6 is connected with the hydraulic pressure material-pulling device, so that plastics can push the melting plastics in the die 4 of plastic inspection well moulding when reaching requirement fast; Insulation storing mould 6 is provided with heating and heat-insulating device, remains on the 160-220 degree to guarantee the plastics that plastic extruder 3 is extruded in insulation storing mould 6.
Mould employing integral plastics inspection shaft mould or assembly type plastic inspection well mould such as upper well body, main well body, chute etc.
Embodiment 2
Technology of the present invention is as follows: a, on frame 2, plastic extruder 3 is set, the die 4 that can laterally slide and the punch 5 that can vertically slide and cooperate with die 4, plastic extruder 3 discharging openings are connected with insulation storing mould 6, and insulation storing mould 6 discharging openings cooperate with die 4; B, the barrel place temperature of plastic extruder 3 is arranged on 60 degree, barrel raises gradually to head temperature, head place temperature is 200 degree, start plastic extruder 3, extrusion temperature is 200 degree melting plastics, is stored in the insulation storing mould 6, keeps insulation storing mould 6 temperature at 200 degree, when insulation storing mould 6 pressure are 300KN, be that the melting plastics of 50kg are clamp-oned in the molding concave die 4 with quality; C, horizontal mobile molding concave die 4 to punch 5 cooperation places, punch 5 is pressed in the die 4 during for 4000KN at pressure; D, keep-up pressure at 400KN, cooling die 20 minutes shifts out punch 5, obtains the plastic inspection well of moulding.
Embodiment 3
Technology of the present invention is as follows: a, on frame 2, plastic extruder 3 is set, the die 4 that can laterally slide and the punch 5 that can vertically slide and cooperate with die 4, plastic extruder 3 discharging openings are connected with insulation storing mould 6, and insulation storing mould 6 discharging openings cooperate with die 4; B, the barrel place temperature of plastic extruder 3 is arranged on 60 degree, barrel raises gradually to head temperature, head place temperature is 190 degree, start plastic extruder 3, extrusion temperature is 190 degree melting plastics, is stored in the insulation storing mould 6, keeps insulation storing mould 6 temperature at 190 degree, when insulation storing mould 6 pressure are 200KN, be that the melting plastics of 30kg are clamp-oned in the molding concave die 4 with quality; C, horizontal mobile molding concave die 4 to punch 5 cooperation places, punch 5 is pressed into d in the die 4 during for 3000KN, keep-ups pressure at 300KN at pressure, cooling die 15 minutes shifts out punch 5, obtains the plastic inspection well parts of moulding.
Embodiment 4
Technology of the present invention is as follows: a, plastic extruder 3 is set on frame, the die 4 that can laterally slide and the punch 5 that can vertically slide and cooperate with die 4, plastic extruder 3 discharging openings are connected with insulation storing mould 6, insulation storing mould 6 discharging openings cooperate with die 4; B, the barrel place temperature of plastic extruder 3 is arranged on 60 degree, barrel raises gradually to head temperature, head place temperature is 180 degree, plastic raw materials in the plastic extruder 3 is heated to 180 degree, starts plastic extruder 3, extrusion temperature is 180 degree melting plastics, be stored in the insulation storing mould 6, keeping insulation storing mould 6 temperature at 160 degree, when insulation storing mould 6 pressure are 100KN, is that the melting plastics of 2kg are clamp-oned in the molding concave die 4 with quality; C, horizontal mobile molding concave die 4 to punch 5 cooperation places, punch 5 is pressed in the die 4 during for 1000KN at pressure; D, keep-up pressure at 200KN, cooling die 10 minutes shifts out punch 5, obtains the plastic inspection well parts of moulding.
Claims (7)
1, a kind of method of hot extruding and cold press plastic inspection well is characterized in that:
A, startup plastic extruder, with temperature is that 180-240 degree melting plastics are extruded in the insulation storing mould, keeping insulation storing mould temperature at the 160-220 degree, when insulation storing molding pressure is 100KN-400KN, is that the melting plastics of 2kg-80kg are clamp-oned in the molding concave die with quality;
B, horizontal mobile molding concave die (4) to punch (5) cooperation place, punch (5) is pressed in the die (4) during for 1000KN-5000KN at pressure;
C, keep-up pressure at 200KN-500KN, cooling die 10-30 minute shifts out punch (5), obtains the plastic inspection well or the parts of moulding.
2, the method for a kind of hot extruding and cold press plastic inspection well according to claim 1, it is characterized in that: described die (4) laterally is slidingly arranged on the frame (2), described punch (5) vertically is slidingly arranged on the frame (2), and described plastic extruder (3) discharging opening is connected with insulation storing mould (6); Two stations that described die (4) laterally slides are corresponding with insulation storing mould (6) discharging opening and punch (5) respectively.
3, the method for a kind of hot extruding and cold press plastic inspection well according to claim 1 and 2, it is characterized in that: described die (4) is slidingly arranged on the horizontal moving track on the frame (2), and die (4) is provided with the die positioner with the moving track of punch (5) cooperation place.
4, the method for a kind of hot extruding and cold press plastic inspection well according to claim 1 and 2 is characterized in that: described insulation storing mould (6) is provided with the attemperating unit that is communicated with electric control gear (1) lead.
5, the method for a kind of hot extruding and cold press plastic inspection well according to claim 1 and 2 is characterized in that: described die (4) moves oil cylinder (7) by die and drives, and punch (5) moves oil cylinder (8) by die casting and drives.
6, the method for a kind of hot extruding and cold press plastic inspection well according to claim 1 and 2 is characterized in that: described insulation storing mould (6) is provided with by the storing mould and moves the hydraulic pressure material-pulling device that oil cylinder (9) drives.
7, the method for a kind of hot extruding and cold press plastic inspection well according to claim 3 is characterized in that: also be provided with on the described frame (2) respectively and move oil cylinder (7) with die, oil cylinder (8) is moved in die casting and the storing mould moves the fuel feeding hydraulic means (10) that oil cylinder (9) is communicated with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100225640A CN100509362C (en) | 2006-12-21 | 2006-12-21 | Hot extruding and cold pressing process for forming plastic inspection well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100225640A CN100509362C (en) | 2006-12-21 | 2006-12-21 | Hot extruding and cold pressing process for forming plastic inspection well |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1986201A true CN1986201A (en) | 2007-06-27 |
| CN100509362C CN100509362C (en) | 2009-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100225640A Expired - Fee Related CN100509362C (en) | 2006-12-21 | 2006-12-21 | Hot extruding and cold pressing process for forming plastic inspection well |
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| CN (1) | CN100509362C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102233633A (en) * | 2010-04-21 | 2011-11-09 | 蔡业 | Movable distribution plastic mixture compression molding machine |
| CN102514200A (en) * | 2011-12-15 | 2012-06-27 | 昆明理工大学 | Hot extrusion and cold compression forming method of plastic inspection well |
| CN102582023A (en) * | 2012-03-29 | 2012-07-18 | 武汉高智创新科技有限公司 | Large workpiece multi-sprue fully-automatic plastic injection machine |
| CN114000490A (en) * | 2021-11-11 | 2022-02-01 | 成都路宝工程材料有限公司 | Selaginella-covering geogrid and production process thereof |
-
2006
- 2006-12-21 CN CNB2006100225640A patent/CN100509362C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102233633A (en) * | 2010-04-21 | 2011-11-09 | 蔡业 | Movable distribution plastic mixture compression molding machine |
| CN102514200A (en) * | 2011-12-15 | 2012-06-27 | 昆明理工大学 | Hot extrusion and cold compression forming method of plastic inspection well |
| CN102582023A (en) * | 2012-03-29 | 2012-07-18 | 武汉高智创新科技有限公司 | Large workpiece multi-sprue fully-automatic plastic injection machine |
| CN114000490A (en) * | 2021-11-11 | 2022-02-01 | 成都路宝工程材料有限公司 | Selaginella-covering geogrid and production process thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100509362C (en) | 2009-07-08 |
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Granted publication date: 20090708 Termination date: 20111221 |