CN2277876Y

CN2277876Y - Multi-function automatic tracting granule-cutting machine

Info

Publication number: CN2277876Y
Application number: CN 96208015
Authority: CN
Inventors: 梁军
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-04-18
Filing date: 1996-04-18
Publication date: 1998-04-08
Anticipated expiration: 2006-04-18

Abstract

The utility model provides a multi-function automatic pulling granulating cutter. A cooling pull roller 5 is installed under the die head 3 of the granulating cutter, and a fixed knife 10 and a movable knife 7 are arranged under the cooling pull roller. When extruded out or pressed out from an extruder or a pressure tank, plastic is not cut into granules immediately. Instead, the plastic falls down with a definite distance away from a die opening and is cut into granules after basically cooled. Besides, when plastic is not fed continuously, automatic pulling can be realized. The utility model has the characteristics of wide technological range, no need for manual pulling when plastic is not fed continuously, etc.

Description

Multi-functional automatic traction pelleter

The utility model belongs to a kind of pelleter in the plastics machinery.

The pelleter that is using at present has, and after plastics came out from die orifice, cutter was pasting the pelleter of die orifice; This method only is adapted to igelite and is not suitable for other plastics.To be plastics go into pelletizing after the water cooling from pulling into round bar after die orifice comes out to second method.Though this pelleter processing range broad, its shortcoming are to need manually traction again behind the disconnected bar of plastics; The 2nd, plastics have water need increase drying process, otherwise influential to the quality of following road technology.Also have the water ring pelleter in addition, cool off behind the compressing tablet, the bar shaped pelleter, but these two kinds of pelleter structures are all very complicated.

Goal of the invention of the present utility model is based on the deficiency of above-mentioned pelleter, provides a kind of rational in infrastructure, and processing range is wide, does not need the pelleter of artificial traction behind the disconnected bar of plastics.

A kind of pelleter that is used on extruder and the pressurized tank provided by the utility model in order to achieve the above object, its principal character is: cooling carry-over pinch rolls 5 are equipped with in die head 3 belows, and there are stationary knife 10 and moving knife 7 in the below of cooling carry-over pinch rolls; When plastics are outwards extruded from extruder or pressurized tank or extruded be not pelletizing at once or go into water cooling after pelletizing; But plastics come out to leave the pelletizing again of die orifice certain distance after sagging from die orifice, and the distance between its die orifice and the stationary knife blade L is greater than 20 millimeters; After plastics are sagging, angle α＜45 between plastics center line and the stationary knife blade °, plastics are through cooling carry-over pinch rolls 5, are cut into a certain size particle by stationary knife 10 and moving knife 8.The optimum orientation of die orifice is (as shown in Figure 1) vertically downward.Die orifice also can be to dead ahead or other direction.

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

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

Fig. 2 analyses and observe for the utility model A-A.

In the accompanying drawing: 1 is extruder or pressurized tank; 2 is the die head basis; 3 is die head; 4 is plastics; 5 are the traction chill roll; 6 is the moving knife fastening bolt; 7 is the moving knife body; 8 is moving knife; 9 is the stationary knife fastening bolt; 10 is stationary knife; 11 is the stationary knife binding; 12 is travelling gear; 13 is bearing; 14,15,16 is moving knife body 7 and big small belt pulley and the belt of cooling between the carry-over pinch rolls 5, and 17 is buncher, and 18,19 is the big small belt pulley between buncher and the moving knife body, and 20 is trip bolt; Though α be meant die orifice to what direction when plastics from die orifice, extrude sagging after, the angle between plastics center line and the stationary knife sword; L is that die orifice is to the actual range between the stationary knife sword.

Press shown in the accompanying drawing; Earlier die head 3 usefulness trip bolts 20 are fastened on the die head body 2, die head body 2 is connected on extruder or the pressurized tank; Bearing 13 is contained on cooling carry-over pinch rolls 5 and the moving knife body 7, then traction chill roll 5 and moving knife body 7 is contained in (drawing in the frame end) on the frame; Then stationary knife 10 is installed on the stationary knife binding 11, moving knife 8 is installed on the moving knife body 7 and the cutter crack between stationary knife 10 and the moving knife 8 is adjusted in the 0.1-0.2 scope, use fastening bolt 8 and 9 fastening then.At last travelling gear 12 and belt pulley 14,16,18,19 are contained in respectively on cooling carry-over pinch rolls 5 moving knife 7 and the speed governing electromechanics 17.The course of work is such: buncher 17 drives 7 rotations of moving knife body by belt pulley 18,19, drives cooling carry-over pinch rolls 5 by belt pulley 16,14 then, and makes two reverse revolutions of cooling carry-over pinch rolls by two travelling gears 12.Outwards extrude from die head mouth mould when plastics 4, to carry-over pinch rolls and the stationary knife certain distance is arranged from die head mouth mould, apart from the lining, plastics cool off substantially at this section L, so plastics adhesion when moving knife 8 and stationary knife 10 pelletizings.The speed of buncher 17 can be regulated in 10-1500 rev/min, the speed of extruding in the mould according to plastics of how much adjusting buncher speed; Thereby moving knife body 7 and cooling carry-over pinch rolls 5 also accelerate accordingly or are slack-off, so that be cut into the plastic grain of certain specification size.

The utility model has the advantages that: because pelletizing is to leave the certain distance of die orifice From L, and the distance of L is greater than 20 millimeters, and plastics are by this segment distance base This cooling is so the bigger plastics of viscosity such as cutting polypropylene are can adhesion. As plastic strip when disconnecting because between the center line of die orifice and the stationary knife sword Angle α is littler, thus the plastic strip that breaks can automatically enter cooling pull roll from And realize automatically drawing.

Claims

1. multi-functional automatic traction pelleter that is used for extruder and pressurized tank is characterized in that: cooling carry-over pinch rolls 5 are housed below the die head 3, and there are stationary knife 10 and moving knife body 7 in cooling carry-over pinch rolls 5 belows.

2. it is characterized in that according to the described a kind of multi-functional automatic traction pelleter of claim 1: die head 3 the mouth mould to the distance between the stationary knife sword greater than 20 millimeters.