CN2675383Y

CN2675383Y - Plastic pipe extruder

Info

Publication number: CN2675383Y
Application number: CNU2004200185743U
Authority: CN
Inventors: 谭全友
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-03-09
Filing date: 2004-03-09
Publication date: 2005-02-02
Anticipated expiration: 2014-03-09

Abstract

The utility model discloses a plastic pipe extruder. The utility model comprises a machine barrel, a machine head, a cooling water jacket, a pressure regulating air plug, and a heating device. A main hopper and a subsidiary hopper are arranged in parallel above the feed inlet on one end of the machine barrel, and between the connecting press plates on the back end of the machine barrel, at least two filter screens are provided, one of which is arranged in the machine barrel and the other is arranged on the outboard of the machine barrel and is contacted with a screen-changing screw. Between the couplings in front end of the cooling water jacket, a fluoroplastic insulation ring is provided. A feeding screw is arranged in the hopper, and the front end of the screw is provided with a blade wheel, which can directly mix the material and make the raw material be stirred homogeneously. Replacing the filter screen without closing down alters the disadvantages in the past that replacing the screen takes time, takes power, and lead out waste materials. The installation of the new material fluoroplastic insulation ring has a good heat-insulation effect, and greatly slows up the heat transmission between the machine head and the cooling water jacket, making the extrusive commodities have smooth surfaces. The inner chamber of the plastic pipe which is refrigerated is provided with the pressure regulating air plug and a screwconical nut, which makes the press plate move outward and act the support function for the rubber pad, avoiding influence of the product quality caused by that the rubber pad is grinded and the air plug escapes air.

Description

The plastic tube extruder

Technical field

The utility model relates to a kind of plastic tube extruder.

Background technology

Have the plastic tube extruder now, be connected with vent plug by machine barrel, head, cold water jacket and form, machine barrel one end is provided with charging aperture, outer wall along machine barrel is furnished with heater, establish main Luo Gang in the machine barrel, during work, through squeeze after the processes such as reinforced, fusion and homogenizing, cooling, moulding.When reinforced, need allocate different raw materials by a certain percentage, like this and the material, very the trouble; Machine turns round for a long time, and the screen pack back that is provided with between machine barrel discharging opening and the head has that a large amount of foreign matters stockpiles or screen pack is breakdown, causes product quality to reduce, and produces the shortcoming of a large amount of waste materials; Between head and the cold water jacket insulated ring is set, insulation effect is bad, and the inside and outside smoothness of the plastic tube that influence is extruded reduces product quality; Vent plug is set in the plastic tube, produces friction between machine long working plastic tube and the vent plug, make vent plug wearing and tearing gas leakage, the air pressure deficiency, plastic pipe deformation produces waste material.

The utility model content

The purpose of this utility model is to provide a kind of can directly and expect that not parking machine is replaceable screen pack, the plastic tube extruder of good product quality.

The technical solution of the utility model is: the utility model plastic tube extruder, comprise machine barrel, head, cold water jacket, pressure regulation vent plug and heater, the machine barrel outer wall is provided with heater, being connected pressing plate by two between machine barrel and the head connects, the plastic insulation circle is set between two terminal pads, be connected by two terminal pads between head and the cold water jacket, regulating vent plug is connected with head by screw rod, main Luo Gang is set in the machine barrel, be connected with reducer output shaft, it is characterized in that: the charging aperture top of machine barrel one end is set up in parallel main hopper and secondary hopper, and feed hopper bottom is provided with a feeding Luo Gang, feeding spiral shell thick stick front end is provided with impeller, and the rear end is provided with drive sprocket; Be set up in parallel at least two screen packs between two connection pressing plates, a screen pack is arranged in the machine barrel, and another is arranged on the machine barrel outside, and the screen pack of machine barrel arranged outside contacts with a draping screw rod.

The described insulated ring that is provided with between two terminal pads is the fluoro-containing plastic insulated ring.

Described pressure regulation vent plug is made up of vent plug base plate, rubber cushion and movable pressing board, rubber cushion and movable pressing board are by being bolted on the vent plug base plate, screw rod is set in the middle of the vent plug base plate, one side of the endoporus that cooperates with screw rod forms a taper chamber, this chamber is corresponding with the tapered cup nut that is arranged on spiro rod rear end, movable pressing board is that four fanning strips combine, and has elongated slot on the fanning strip.

The advantage of this extruder:

1, feeding Luo Gang is set in hopper, spiral shell thick stick front end is provided with impeller, can directly and expect, raw material is stirred, and saves the labour, save electricity;

2, do not shut down the replacing screen pack, changed waste time and energy the shortcoming of waste material of draping in the past;

3, the installation of new material fluoro-containing plastic insulated ring, good heat-insulation effect has been slowed down the heat transmission between head and the cold water jacket greatly, makes the product surface of extruding smooth;

4, at the plastic tube inner chamber that is cooled the pressure regulation vent plug is set, the precession tapered cup nut outwards moves movable pressing board, and rubber cushion is played a supportive role, and avoiding influences product quality because of the gas leakage of rubber cushion wearing and tearing vent plug.

Description of drawings

Fig. 1 and Fig. 2 are the utility model plastic tube extruder front view and vertical view;

Fig. 3 be among the utility model Fig. 2 A-A to cutaway view;

Fig. 4 is the partial view of screen pack among the utility model Fig. 2;

Fig. 5 be among the utility model Fig. 2 C-C to cutaway view;

Fig. 6 is the partial view of vent plug among the utility model Fig. 2;

Fig. 7 is the cutaway view of movable pressing board among the utility model Fig. 6.

The specific embodiment

The utility model plastic tube extruder, comprise machine barrel 13, head 16, cold water jacket 17 and pressure regulation vent plug 9, be connected pressing plate 5 by two between machine barrel and the head, 6 connect, between head and the cold water jacket by two

terminal pads

7,8 connect, regulating vent plug 9 is connected with head by screw rod 22, main spiral shell thick stick 2 is set in the machine barrel, be connected with decelerator 10 output shafts, charging aperture 11 tops of machine barrel front end are set up in parallel main hopper 12 and secondary hopper 4, feed hopper bottom is provided with a feeding spiral shell thick stick 3, feeding spiral shell thick stick front end is provided with impeller 18, and the rear end is provided with drive sprocket 1, and drive sprocket is connected with the decelerator output chain gear by chain; Between two connection pressing plates, be set up in parallel at least two screen packs 15, a screen pack is arranged in the machine barrel, another is arranged on the machine barrel outside, the screen pack of machine barrel arranged outside contacts with a draping screw rod 14, during draping, the nut loosening of pressing plate, it is promptly replaceable to utilize screw rod to promote screen pack; Fluoro-containing plastic insulated ring 19 is set between two terminal pads, and the fluorine-containing insulated ring of new material is a kind of insulated ring of heat-resisting, ageing-resistant, good heat-insulation effect; The pressure regulation vent plug is made up of vent plug base plate 24, rubber cushion 20 and movable pressing board 21, rubber cushion and movable pressing board are by being bolted on the vent plug base plate, screw rod 22 is set in the middle of the vent plug base plate, one side of the endoporus that cooperates with screw rod forms a taper chamber, this chamber is corresponding with the tapered cup nut 23 that is arranged on spiro rod rear end, movable pressing board 21 is that four fanning strips combine, and has elongated slot 25 on the fanning strip.

The course of work: decelerator is driven by speed-regulating AC motor, the material that the output wheel of decelerator drives the secondary hopper of feeding Luo Gang rotation promotion enters main hopper, the impeller that feeding spiral shell thick stick front end is provided with, after being stirred, two or more raw materials enter the feeding mouth of machine barrel, another decelerator 10 drives main spiral shell thick stick 2 rotations and advances the former heating plasticizing district of expecting, (heater being set) at the machine barrel outer wall, the raw material that plasticizing is good is come the moulding head 16 of shunting through filter screen, head is made up of current divider and interior adventitia, raw material forms tubulose through interior adventitia, through cold water jacket 17 moulding, enter and continue in the tank to cool off to arrive hauling machine afterwards; Constantly in pipe, inject air by an injecting hole, guarantee the quality of pipe, the pressure regulation vent plug is connected with head by screw rod, be arranged on the plastic tube inner chamber, the plastic tube internal gas pressure is played sealing process, keep the plastic tube internal gas pressure stable, the product pipe cuts at last, product pipe cutting mouth is convenient to the adjusting operation of vent plug apart from only several centimeters of pressure regulation vent plugs.

Claims

1, a kind of plastic tube extruder, comprise machine barrel (13), head (16), cold water jacket (17), pressure regulation vent plug (9) and heater, the machine barrel outer wall is provided with heater, be connected pressing plate (5 by two between machine barrel and the head, 6) connect, plastic insulation circle (19) is set between two terminal pads, between head and the cold water jacket by two terminal pads (7,8) connect, regulating vent plug is connected with head by screw rod (22), main Luo Gang (2) is set in the machine barrel, be connected with reducer output shaft, it is characterized in that: charging aperture (11) top of machine barrel one end is set up in parallel main hopper (12) and secondary hopper (4), feed hopper bottom is provided with a feeding Luo Gang (3), feeding spiral shell thick stick front end is provided with impeller (18), and the rear end is provided with drive sprocket (1); Be set up in parallel at least two screen packs (15) between two connection pressing plates, a screen pack is arranged in the machine barrel, and another is arranged on the machine barrel outside, and the screen pack of machine barrel arranged outside contacts with a draping screw rod (14).

2, plastic tube extruder according to claim 1 is characterized in that: the insulated ring that is provided with between two terminal pads (19) is the fluoro-containing plastic insulated ring.

3, plastic tube extruder according to claim 1 and 2, it is characterized in that: pressure regulation vent plug (9) is made up of vent plug base plate (24), rubber cushion (20) and movable pressing board (21), rubber cushion and movable pressing board are by being bolted on the vent plug base plate, screw rod (22) is set in the middle of the vent plug base plate, one side of the endoporus that cooperates with screw rod forms a taper chamber, this chamber is corresponding with the tapered cup nut that is arranged on spiro rod rear end (23), movable pressing board (21) is that four fanning strips combine, and has elongated slot (25) on the fanning strip.