CN2171413Y - Plastic grinder - Google Patents

Abstract

The utility model discloses a plastic grinder, which can grind plastics into powders for coating in normal temperature. The utility model comprises a roller grinding cutter, an upper and a lower cover caps, a bearing, a cooling water inlet pipe, a cooling water outlet pipe, an electric motor and a belt wheel. The utility model has advantages of simple structure, lower price then imported products and better performance than like machines. In addition, the one-time grinding qualified rate (more than 60 meshes) of the plastic grinder can achieve 80%. The utility model is an apparatus with huge practicability.

Description

Plastic grinder

The utility model is a kind of reducing mechanism, particularly plastics is made the pulverizer of plastics micro mist.

The plastics micro mist is mainly used in coating, and it is applied to the irreplaceable place of paint with flame-spraying, electrostatic spraying or fluidized bed process etc.And being made the micro mist (greater than 60 orders) that is applicable to coating, plastics use deep cooling to pulverize or the normal temperature pulverizing usually.It is expensive that deep cooling is pulverized one-time investment, and general being difficult for adopts.Domestic still do not have a normal temperature size reduction machinery, in Japan, the U.S. this kind equipment is arranged, T25-4, TG300, the T400-2 type turbine grinder produced as Japanese turbine Industrial Co., Ltd, expensive, approximately every needs are more than 300,000 dollars, and with the micro mist more than disposable 60 orders of producing of this equipment, only account for 28%-29%, micro mist more than 70% can not use, and still needing to pulverize just can reach repeatedly needs the order number.

The purpose of this utility model provide a kind of simple in structure, cost is low, and the high plastic crusher of disposable pulverizing qualification rate.

The purpose of this utility model is achieved in that pulverizer comprises cylinder milling cutter, upper and lower cover cap, and there is flange seal at cylinder milling cutter two ends, and by the roller bearings supporting, by the motor drives belt pulley cylinder milling cutter is rotated.Main points of the present utility model are: the cylinder milling cutter vertically becomes 5-10 helical form, the cross section toothing, and cylinder milling cutter hollow is connected to cooling water intake and delivery port with cylinder two end flanges; Following cover cap has the meal outlet that connects air-introduced machine.The vertical tooth pitch C1.5mm of said cylinder milling cutter, between cog angle α=74 °, the sawtooth wedge angle on the cross section are γ=5 °, and the between cog angle is β=43 °, becomes circular arc at the bottom of the tooth, and smooth.

The utility model course of work is such: vinyon particle and corresponding material are puddled evenly sent into plastics hot extrude machine and make 60 * 80 * 120 plastic plate, the charging aperture of plastic plate from upper cover is fed under the cylinder milling cutter, once be cut and be ground into powder, plastic powders is subjected to blower fan and attracts to enter the material collection tube row filter of going forward side by side from the outlet of cover cap down.The milling cutter evolution of heat when cutting is melted for avoiding plastics to be heated, is glued cutter, so cylinder milling cutter middle part is hollow, and connects cooling-water duct, has the cooling water circulation to force to cool off when work.

The utility model has the advantages that: because milling cutter reasonable in design, make the simple and good crushing effect of complete machine structure; Because design has cooling-water duct,, solved the key issue that plastics are pulverized under the normal temperature by forcing cooling control milling cutter temperature below 50 ℃; Owing to connect air-introduced machine, make powder by all sucking-offs, free from environmental pollution.

Details of the present utility model elaborates by following examples and accompanying drawing thereof.

Fig. 1 is a kind of structure chart of the present utility model.

Fig. 2 is the utility model outer surface of cylinder organigram.

Fig. 3 is the A-A profile of Fig. 2.

Fig. 4 is the B-B profile of Fig. 2.

With reference to the accompanying drawings, the utility model comprises the flange 11,15 of the upper cover 12 of cylinder milling cutter 13, milling cutter 13, following cover cap 31, milling cutter 13 two ends, be supported on bearing and bearing block on the central siphon of flange 11,15, be connected on water inlet pipe and outlet pipe 3 and 22 on the flange central siphon, and motor, belt pulley.Main points of the present utility model are hollow barrel-types at its cylinder milling cutter 13, and outer surface Vehicle Processing longitudinally goes out 10 spiralitys, tooth pitch 1.5mm, between cog angle α=74 °; On cross section, mill out zigzag again, between cog angle β=43 °, each tooth angle γ=5 ° become circular-arc at the bottom of the tooth, R=0.3, and fineness requires to be not more than at the bottom of the tooth , 12 times cover caps 31 of milling cutter 13 upper covers are respectively equipped with charging aperture and meal outlet, and the meal outlet place connects induced duct.The two ends of milling cutter 13 seal with flange 11 and 15, the tubular axis part of flange 15 is equipped with black box 16 successively, bearing 18 and be fixed on bearing block 17 on the workbench angle bar 26, seal felt 25 is arranged on the bearing block 17, on the tubular axis in bearing 18 outsides tubular axis belt pulley 19 is housed also, the tubular axis end picks out water pipe 22 by one group of carbon seal ring 23 and F-4 sealing ring 20.21 is the outlet pipe support, and it is installed on the table top corner iron 24.The tubular axis part of flange 11 is equipped with black box 10(seal felt 9, screw 32 successively), bearing 8 and be installed in bearing block 7 on the table top angle bar 33, the tubular axis end connects water inlet pipe 3, clamping nut 4, water inlet pipe support 2, table top angle bar 1 by one group of carbon seal ring 6, F-4 sealing ring 5.

The plastic plate that the utility model will be pressed into when using is in advance sent into from the charging aperture of upper cover 12, through the cutting and grinding of cylinder milling cutter, once reaches above the reaching more than 80% of requiring of 60 orders, powder from the sealed sucking-off of meal outlet to the material collection tube.Therefore in cutting and grinding, 1400 rev/mins of milling cutter 13 rotating speeds produce big calorimetric, with immersible pump water are injected the hollow space of cylinder milling cutters through water inlet 3, get back in the water tank through delivery port 22 again, can keep milling cutter 13 below 50 ℃.

The utility model is free from environmental pollution, the first-time qualification rate height, and also cost is extremely cheap, and huge industrial utility value is arranged.

Claims (3)

1, normal temperature plastic crusher, it comprise cylinder milling cutter, upper cover, down cover cap, cylinder milling cutter two ends sealing flange, be supported in the pair of bearings of flanged pipe shaft portion, and motor, belt pulley, it is characterized in that: its cylinder milling cutter hollow, outer surface vertically is shaped on 5-10 spiral, cross-section facing cut toothing; The flanged pipe shaft portion at cylinder two ends is connected with cooling water inlet pipe and outlet pipe.

2, pulverizer according to claim 1 is characterized in that: the vertical tooth pitch 1.5mm of said cylinder milling cutter, between cog angle α=74 °, the sawtooth wedge angle on the cross section are γ=5 °, and the between cog angle is β=43 °, becomes circular arc at the bottom of the tooth, and smooth.

3, pulverizer according to claim 1 is characterized in that: said upper and lower cover cap has charging aperture and meal outlet, its meal outlet air-introduced machine that is tightly connected.