CN2390740Y

CN2390740Y - Ultralong single-screw extruder

Info

Publication number: CN2390740Y
Application number: CN99221949U
Authority: CN
Inventors: 李承芳
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-08-11
Filing date: 1999-08-11
Publication date: 2000-08-09
Anticipated expiration: 2009-08-11

Abstract

The utility model relates to an ultralong single-screw extruder, belonging to plastic extrusion equipment. The utility model is realized through the improvement on the basis of the existing single-screw extruder. The utility model is characterized in that a screw and a spiral cylinder are lengthened; an air outlet 12, a cold water cistern 19, a thermoelectric couple 15 and an electric heating ring 17 are orderly arranged on the wall of the lengthened spiral cylinder 13; a water inlet pipe 20 and a water outlet pipe 14 are respectively arranged on the cold water cistern 19; the thermoelectric couple 15 is connected with a temperature control meter 16 through electric connecting wires; one end of the electric heating ring 17 is connected to the temperature control meter, and the other end is connected to a power supply; the other end of the power supply is connected to the temperature control meter; the right end of the spiral cylinder 13 is connected with a die head 18 through an inner and an outer screw threads.

Description

The overlength single screw extrusion machine

The utility model relates to ground overlength single screw extrusion machine, belongs to the plastics extrusion equipment.

Existing extruder must be to cause particle with waste plastic film, again with particle by charging aperture be input to add in the extruder hot-extrudable, material by output just can be passed in the required mould blow molding or directly be blow molded into plastic tube with die head, needn't make particle earlier, that directly extrudes expects that the extruder of blow molding was not seen in the mould.

The purpose of this utility model is intended to improve above-mentioned deficiency, and a kind of particle that need not to make earlier is provided, and directly carries plastic sheeting in hopper, extrudes the plastic extruder that can directly deliver to blow molding in the processing mold by the screw rod of lengthening.

In order to achieve the above object, the utility model is to realize by improving on the basis of existing single screw extrusion machine, it is by motor 1, driving wheel 2, belt 3 drives follower 4, cooperate by key with reducer input shaft 5 by follower 4 and to drive decelerator 6, reducer output shaft 8 joins by adapter sleeve 9 and screw rod 10, matched in clearance connects a barrel 13 on the cylindrical on the screw rod 10, barrel 13 right-hand members are fixed on decelerator 6 outer walls by ring flange 7, charging aperture 11 is arranged above barrel 13, be characterized in that screw rod 10 prolongs to the right, on screw rod 10 cylindricals that prolong, prolong barrel 13, on the barrel 13 that prolongs, establish a venthole 12, on the barrel 13 of venthole 12 right-hand members, be provided with cold rinse bank 19, cold rinse bank 19 closely cooperates with barrel 13, establish water inlet pipe 20 at cold rinse bank 19 1 ends, one end sets out water pipe 14, on the barrel 13 of cold rinse bank 10 right-hand members, establish thermocouple 15, thermocouple 15 joins by line and temp controlled meter 16, on the outer circle wall of the barrel 13 of thermocouple 15 right-hand members, establish electric heating coil 17, electric heating coil 17 1 terminates on the temp controlled meter 16, one terminates on the power supply, the other end of power supply is connected on the temp controlled meter 16, the lengthening barrel 13 right-hand member heads by the die head 18 that is threaded.

The utility model is by with screw rod, the barrel lengthening, the temperature height cold rinse bank cooling is arranged, temperature is low and by the heating of thermostat galvanothermy circle, the utility model can reach the plastics blow molding requirement as long as raw material are transported in the charging aperture by just extruding successively.

In order to understand better and to implement, it is as follows with the accompanying drawing to be that embodiment further specifies below:

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is temp controlled meter control circuit figure.

Drive follower 4 by motor 1, driving wheel 2, belt 3 among Fig. 1, follower 4 cooperates for key with reducer input shaft 5, reducer output shaft 8 connects threaded screw rod 10 by adapter sleeve 9, barrel 13 1 ends are fixedlyed connected with decelerator 6 outer walls by ring flange 7, on barrel 13, open a charging aperture 11, charging aperture 11 welds with the hole wall that barrel is left, with screw rod 10 lengthenings, barrel 13 lengthenings are being provided with venthole 12, cold rinse bank 19, thermocouple 15, electric heating coil 17 on the circumferential wall on the barrel 13 of lengthening successively.Venthole 12 is opened a slot and is got final product on the outer circle wall of barrel 13; Cold rinse bank 19 is that the circle of a sealing is welded on the circumferential wall of barrel 13, and symmetry is respectively opened a hole on the circumferential wall of cold rinse bank, stomidium welding water inlet pipe 20, one stomidiums welding outlet pipe 14; Thermocouple 15 is hollow bushings that are welded on the outer wall of barrel 13 by, thermocouple 15 is inserted in the hollow bushing to contact with the wall of barrel 13 realizes thermometric; Electric heating coil 17 is installed on barrel 13 circumferential wall by an insulator, and coated again one deck insulator outside electric heating coil is fixed on the barrel circumferential wall by a circumferential band and gets final product.Thermocouple 15 among Fig. 2 is connected with temp controlled meter 16 by two electrical wirings, and electric heating coil 17 1 ends and temp controlled meter join, and one terminates on the power supply, and the other end of power supply is connected on the temp controlled meter; Barrel 13 right-hand member heads at lengthening connect a die head 18 by internal and external threads, establish external screw thread on the outer wall of barrel 13 terminations, establish internal thread at the left end of die head inwall, are connected by internal and external threads.

When work, drive followers 4 by motor 1, driving wheel 2, belt 3, follower 4 and reducer input shaft 5 drive decelerator simultaneously and rotate for key cooperates.Reducer output shaft 8 drives screw rods 10 rotations, when plastics or plastic film are transported to charging aperture 11, under the high speed rotation of screw rod 10, extrude by screw rod and to be added to extrusion-blown modling on the supporting die head.The effect of venthole 12 is to give vent to anger by venthole 12 and dispel the heat in the process of extruding, cold rinse bank 19 adds recirculated water by water inlet pipe 20, outlet pipe 14 and lowers the temperature for barrel 13, when temperature drops to when causing the material of extruding not reach blowing, the temperature of measuring by thermocouple 15 feeds back to temp controlled meter, make electric heating coil 17 heating by temp controlled meter control, by the screw rod rotation, material is added to die head extrusion-blown modling.

Claims

1, a kind of overlength single screw extrusion machine, it is by motor (1), driving wheel (2), belt (3) drives follower (4), cooperate by key with reducer input shaft (5) by follower (4) and to drive decelerator (6), reducer output shaft (8) joins by adapter sleeve (9) and screw rod (10), matched in clearance connects a barrel (13) on the cylindrical on the screw rod (10), barrel (13) right-hand member is fixed on decelerator (6) outer wall by ring flange (7), in barrel (13) top charging aperture (11) is arranged, it is characterized in that screw rod (10) prolongs to the right, on screw rod (10) cylindrical that prolongs, prolong barrel (13), on the barrel (13) that prolongs, establish a venthole (12), on the barrel (13) of venthole (12) right-hand member, be provided with cold rinse bank (19), cold rinse bank (19) closely cooperates with barrel (13), establish water inlet pipe (20) at cold rinse bank (19) one ends, one end sets out water pipe (14), on the barrel (13) of cold rinse bank (10) right-hand member, establish thermocouple (15), thermocouple (15) joins by line and temp controlled meter (16), on the outer circle wall of the barrel (13) of thermocouple (15) right-hand member, establish electric heating coil (17), electric heating coil (17) one terminates on the temp controlled meter (16), one terminates on the power supply, the other end of power supply is connected on the temp controlled meter (16), the lengthening barrel (13) right-hand member head by the die head (18) that is threaded.

2, by the described overlength single screw extrusion machine of claim 1, it is characterized in that thermocouple (15) is a hollow bushing that is welded on the outer wall of barrel (13) by, thermocouple (15) is inserted in the hollow bushing to contact with the outer wall of barrel (13) realizes thermometric.