CN2193799Y

CN2193799Y - Simple plastic extruder

Info

Publication number: CN2193799Y
Application number: CN 93216716
Authority: CN
Inventors: 徐庆昌
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-06-26
Filing date: 1993-06-26
Publication date: 1995-04-05
Anticipated expiration: 2003-06-26

Abstract

The utility model relates to a simple plastic extruder, which comprises a speed reducer which is driven by a motor, a charging barrel with a hopper, a thermometer, a threaded rod which is arranged in the charging barrel and is connected with the speed reducer, a machine head which is fixed at one end of the charging barrel, and an auxiliary device of the extruder. The utility model is characterized in that the extruder also comprises a fire brand heating furnace. The fire brand heating furnace is provided with a flame path which is parallel to the charging barrel. The top part of the heating furnace is provided with a cooling plate, and a heat insulating cover is arranged on the cooling plate. The charging barrel is supported and arranged in the heat insulating cover. The machine head is arranged at the outer side of the heat insulating cover and is positioned on the cooling plate. A heat removal valve and the thermometer are arranged on the heat insulating cover. The utility model has the advantages of simple device, difficult damage, low energy consumption, etc. The utility model is especially suitable for producing plastic products such as a plate, etc., with large area and loose requirement for the softening temperature of plastics.

Description

Simple plastic extruder

The utility model relates to a kind of simple type plastic extruder.

Existing plastic extruder, its heating cooling mainly are the types of cooling that adopts resistance heated or induction heating mode and use cold water or cold wind.It is fast that they have a temperature rise, and temperature is more stable and be convenient to the advantage of control automatically.But the equipment more complicated, the cost height, energy resource consumption is bigger, and some parts very easily damages.In reality processing, because heating of plastic makes its wider range that becomes soft state (generally between 120-180 ℃), more especially the plastics softening range is required not too strict plastic products, can adopt some to heat the type of cooling more easily, and adopt these easy heating types of cooling can reduce the cost and the energy resource consumption of equipment significantly, thereby reduce product cost.

The purpose of this utility model just provides a kind of simple type plastic extruder of the saving energy with low cost.

For achieving the above object, the utility model is taked following design, a kind of simple type plastic extruder, it comprises the decelerator of driven by motor, the barrel that has hopper, thermometer, be installed in the screw rod that is connected with decelerator in the barrel, be fixed on the head and the extruder auxiliary equipment of barrel one end, it is characterized in that: it also comprises a burning things which may cause a fire disaster heating furnace, described burning things which may cause a fire disaster heating furnace has a quirk that be arranged in parallel with described barrel, and described heating furnace top is provided with a heat sink, and a stay-warm case is installed on the described heat sink, described barrel supporting also is installed in the described stay-warm case, described head covers in outside the described stay-warm case, and is seated on the described heat sink, and heat extraction valve and described thermometer are installed on the described stay-warm case.

On the heat sink at the heating furnace top of broad, the described barrel that is installed in the stay-warm case is 1-5.

The head that is installed in above barrel one end is a common head.

Below in conjunction with accompanying drawing the utility model embodiment is described in detail.

Fig. 1 is the utility model structural representation

Fig. 2 is the vertical view of Fig. 1

As shown in Figure 1 and Figure 2, be built into or be welded into a body of heater 1 with iron plate with refractory brick, at body of heater 1 one ends fuel inlet 2 is set, the other end is provided with a chimney 3, on iron plate of body of heater 1 top cover as heat sink 4.Pass heat sink, heating furnace and be sitting in six bearing supports 5 of two rows are arranged on the ground, at three of the bearing support 5 upper supports barrel 6 with the parallel placement of quirk of heating furnace, an end of barrel 6 close chimneys 3 is provided with hopper 7.A screw rod 8 is installed respectively in three barrels 6, and the input of screw rod 8 is connected with decelerator 9, and the input of decelerator 9 is connected on the motor 10.At stay-warm case 11 of outer mask of three barrels 6, stay-warm case 11 is made up of one deck iron plate and the heat-insulation layer that wraps in the iron plate outside.Stay-warm case 11 is fixed by bolts on the heat sink 4.The head 12 that is installed in barrel 6 outputs is exposed at stay-warm case 11 outsides.Head 12 is downward-sloping installations, and it is sitting on the heat sink 4, is perhaps filling up some heat conduction objects on the heat sink 4, and it is contacted with head 12, so that head 12 is further heated, is extruder servicing units 15 in head 12 outsides.Open two louvres at the top of stay-warm case 11, and install two top slewing heat extraction valves 13, on stay-warm case 11, open three thermowells, three thermometers 14 are inserted respectively in the jack, to measure the temperature of 6 three corresponding transportation sections of barrel.

In the foregoing description, the quantity of barrel 6 can also be one, more than two or three.The design of body of heater 1 also can be other pattern, the mounting means of heat sink 4, and the support pattern of barrel 6, the fixed form of stay-warm case 11, and the quantity of heat extraction valve 13 and form etc. all can change.Fuel in the body of heater 1 can also adopt other fuel except that coal.

In the time of operation, the rotation of driven by motor decelerator drive screw, material enters barrel from hopper, is fed forward under the promotion of screw rod.The fuel that enters body of heater from the fuel inlet makes the higher temperature of maintenance in the stay-warm case.Because fuel is far away apart from hopper and decelerator one side mainly near the burning of fire door place, relatively meet the temperature needs of three different transportation sections of barrel.When temperature surpasses necessary requirement, can open the heat extraction valve, rapidly temperature is lowered.Head place temperature requirement although head is exposed to outside the stay-warm case, because it directly contacts with heat sink, can reach temperature requirement than the high 5-10 of barrel temperature ℃ fully.In order to prevent fires, fuel inlet and extruder partly can be separated during operation.

Employing the utility model can be produced the wide cut flat board (at present generally at 1-1.5 rice, the wideest to 3-4 rice) about 5 meters.It is that the output that is located at a plurality of barrels in the stay-warm case is installed a coupling respectively, and on a plurality of couplings a common plate squeezing head is installed.Material is clamp-oned the flat board that common plate squeezing head forms super wide cut from barrel separately, through draw-gear, and cooling forming behind the shear.The plastic plate of this super wide cut has broad prospects aspect building construction.

When adopting the utility model to produce other products, the head of can installing respectively in each barrel end can be produced many products simultaneously with a heating furnace like this, has improved productivity ratio.

The utility model has saved the required complex device of electrical heating and cooling device and some consumable accessorys because fuel such as employing coal directly heat.And solving temperature control problem with the heat radiation valve, equipment manufacturing cost is very low, has reduced energy resource consumption simultaneously.Need about 1000 kilowatts of electricity consumptions such as 1 ton of plastic products of daily output, and only need about 200 kilograms with coal, about 100 watts of motor power consumptions, the utility model proves to have boundless prospect through preliminary test.

Claims

1, a kind of simple type plastic extruder, it comprises the decelerator of driven by motor, the barrel that has hopper, thermometer, be installed in the screw rod that is connected with decelerator in the barrel, be fixed on the head and the extruder auxiliary equipment of barrel one end, it is characterized in that: it also comprises a burning things which may cause a fire disaster heating furnace, described burning things which may cause a fire disaster heating furnace has a quirk that be arranged in parallel with described barrel, and described heating furnace top is provided with a heat sink, and a stay-warm case is installed on the described heat sink, described barrel supporting also is installed in the described stay-warm case, described head places outside the described stay-warm case, and is seated on the described heat sink, and heat extraction valve and described thermometer are installed on the described stay-warm case.

2, simple type plastic extruder as claimed in claim 1 is characterized in that: the described barrel that is installed in the stay-warm case is 1-5.

3, simple type plastic extruder as claimed in claim 2 is characterized in that: the described head that is installed in above barrel one end is a common head.