CN101954679B

CN101954679B - Grinding disc structure of rubber grinder

Info

Publication number: CN101954679B
Application number: CN2010101837778A
Authority: CN
Inventors: 顾军; 顾洪
Original assignee: JIANGYIN XINDA MEDICINE AND CHEMICAL MACHINERY MANUFACTURING Co Ltd
Current assignee: JIANGYIN XINDA MEDICINE AND CHEMICAL MACHINERY MANUFACTURING Co Ltd
Priority date: 2010-05-27
Filing date: 2010-05-27
Publication date: 2012-11-21
Anticipated expiration: 2030-05-27
Also published as: CN101954679A

Abstract

The invention relates to a grinding disc structure of a rubber grinder, which comprises a movable grinding disc and a fixed grinding disc, wherein the substrate end surfaces of the movable grinding disc and the fixed grinding disc are dimple spherical surfaces; and grinding blades are arranged in the substrate arrays of the end surfaces of the grinding discs, the heights of the grinding blades are gradually higher than the spherical end surfaces of the grinding discs, i.e. the head parts of the blades which are near the centers of the grinding discs and protrude out of the end surfaces of the substrates are higher, and the tail ends of the blades which are near the edges of the grinding discs and protrude out of the end surfaces of the substrates are lower. The end surfaces of the grinding discs of the invention are both even spherical surface curves, thus material blockage can not be caused due to abrupt change of cross sections; the carbide blades are higher than the spherical end surfaces gradually from the centers to the edges of the grinding discs, thus each part of the blades effectively takes part in the grinding operation, and the wear is equal after long-term working; and the invention effectively improves the grinding output, reduces the generated heat in grinding, and prolongs the service life of equipment.

Description

The mill structure of rubber grinding machine

Technical field

The present invention relates to the rubber tooling field, especially a kind of waste old reclaims process equipment.

Background technology

For example doughnut, sole etc. need be with rubber earlier through repeatedly being ground into the rubber micelle of 5 millimeter to reclaim the processing waste rubber goods; Steel wire and the fiber that mix inside when removing the preparation tire, and then to utilize rubber grinding machine that the rubber micelle is ground be 40～200 purpose rubber powders.Like utility model patent 200720039370.1 disclosed rubber grinding machines; Referring to shown in Figure 1; The rubber grain material drops into from hopper 6, is delivered to the grinding chamber 4 between fixed millstone 5 and the movable grinding disc 3 by feeding spiro rod 7, under the relative shear and rubbing action of the carbide chip of inlaying on movable grinding disc 3 and the fixed millstone 5 and welding; Rubber grain ground be powder, and the exhausting conduit 10 through the bottom is with the powder sucking-off; The main motor (not shown) in bottom drives hollow spindle 2 through belt pulley 1 and drives movable grinding disc 3 rotations, and bottom motors 9 drives feeding spiro rod 7 swivel feedings through sprocket wheel 8; Because rubber is toughness material, crushing power is big, and fixed millstone 5 is very big with the caloric value of movable grinding disc 3, so mill is designed to the hollow cavity structure, feeds cooling water in hollow inside cavity and cools off; Through worm-and-wheel gear 11, can regulate main shaft and then adjustment and carry out the gap between fixed millstone 5 and the movable grinding disc 3, thus the powder of acquisition different fineness.

As shown in Figure 5; The movable grinding disc structure of present rubber grinding machine is for to weld a plurality of carbide chips 101 at circular millstone matrix 102 surperficial annular arrays; Movable grinding disc center recessed 104; Holding the rubber grain material that feeding spiro rod is sent in the through hole of fixed millstone central authorities, and carry to disc circumference through the chamfering 105 at edge.Anterior fluted 103 at carbide chip 101 makes the part of blade 101 be higher than mill matrix 102, with effective shearing rubber grain.But the end face of whole mill is smooth; The end face of in like manner relative fixed millstone also is the plane, is only exposing carbide chip near the central portion part.But this mill structure exists following problem: 1. movable grinding disc indented central; And the transition face changes of section is lofty, causes the concentrated and obstruction of rubber grain at the middle part easily, not only has influence on grinding output; And hot-spot can cause the softening and coking of rubber, causes equipment fault; 2. because mill needs cavity 106 water-coolings,, under long-time pressure effect, break easily because of the wall thickness of indented central part is thinner; 3. the blade part is higher than the mill matrix, and major part flushes with matrix surface, blade exposed portion serious wear, and shearing work can not be effectively participated at all the other positions, grinding efficiency is not high.

Summary of the invention

The applicant is to the mill unreasonable structure of above-mentioned existing rubber grinding machine; Cause grinding and yield poorly, shortcoming such as equipment is fragile provides a kind of rational in infrastructure; Grind the mill structure of rubber grinding machine efficiently; Effectively raise grinding output, reduce the heat that produces when grinding, prolonged equipment life.

The technical scheme that the present invention adopted is following:

A kind of mill structure of rubber grinding machine; Comprise movable grinding disc and fixed millstone; The matrix end face of movable grinding disc and fixed millstone is the sphere of scrobicula, and on the matrix of mill end face, dispersing arranged in arrays by mill mediad periphery has the length carbide chip, its highly gradient be higher than mill sphere end face; Be that blade is higher near the head protrusion matrix end face of mill central authorities, blade is lower near the end protrusion matrix end face at mill edge.It is further characterized in that:

The central authorities of movable grinding disc are provided with cross and grind cutter, and it highly all protrudes from the end face of movable grinding disc matrix.

Mill end face of the present invention is uniform spherical curve, therefore can not cause material to stop up because of the abrupt change of cross-section; Carbide chip near the gradual change of mill central authorities to edge be higher than mill sphere end face, so each part of blade all effectively participated in grinding operation, wearing and tearing quite after the long-term work; The present invention is shallow and even in the sphere depression of movable grinding disc middle part setting, therefore can not occur causing local wall thickness to cross living the breaking and damage of small property owing to being provided with cavity; The middle part is provided with the cross cutter and can not only discharges material effectively and uniformly, and can effectively improve grinding efficiency.

Description of drawings

Fig. 1 is for using the front view of rubber grinding machine of the present invention;

Fig. 2 is a movable grinding disc stereogram of the present invention;

Fig. 3 is the vertical view of Fig. 2;

Fig. 4 is the cutaway view in A-A cross section among Fig. 3;

Fig. 5 is the mill cutaway view of prior art, the same Fig. 4 of view direction.

The specific embodiment

Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described.

Extremely shown in Figure 4 like Fig. 2; The end face on-plane surface of movable grinding disc of the present invention and fixed millstone; But the sphere of a scrobicula; The end face that the middle section figure of movable grinding disc 3 as shown in Figure 4 shows is a camber line 304, on the matrix 302 of mill end face, disperses the carbide chip 301 that arranged in arrays has length by mill mediad periphery, its highly gradient be higher than mill sphere end face 304; Be that blade 301 is higher near the head protrusion matrix end face 304 of mill central authorities, blade 301 is lower near the end protrusion matrix end face 304 at mill edge.The central authorities of movable grinding disc 3 are not provided with pit, but inlay and be welded with cross carbide cutter tool 303, and it highly all protrudes from the end face 304 of movable grinding disc matrix 302.

During real work; As shown in Figure 1, the rubber grain material is delivered to the grinding chamber 4 between fixed millstone 5 and the movable grinding disc 3 in the conveying of feeding spiro rod 7 through the through hole of fixed millstone 5 central authorities, and movable grinding disc 3 rotates under the driving of main shaft 2; Because movable grinding disc 3 central authorities are provided with cross carbide cutter tool 303; Therefore can not produce the obstruction that bowl configurations causes, not only can effectively material be evenly distributed to circumferential grinding chamber 4, and can accomplish the work that part is sheared.Because movable grinding disc 3 is shallow sphere with the end face of fixed millstone 5; Therefore cooperate back grinding chamber 4 to be the flying saucer shape; Rubber grain is extruded to the edge from the middle part, and extruding force and shearing force that it receives are increasing, has also just accomplished the process that is ground to powder from bulky grain; The final exhausting conduit 10 of passing through the bottom is with the powder sucking-off.Because carbide chip 301 is from being higher than mill sphere end face 304 near the gradual change of mill central authorities to edge; Therefore each part of blade 301 has all effectively been participated in grinding operation; Wearing and tearing quite after the long-term work; Because grind the contact-making surface minimizing and effectively reduced the heat that produces when grinding, avoid the too high softening and coking that causes of rubber material Yin Wendu simultaneously.Because the end face of mill is uniform spherical curve, therefore can not cause material to stop up because of the abrupt change of cross-section.Because the sphere depression of the present invention's setting at the middle part is shallow and even, therefore can not occur causing the pit bottom wall thickness to cross living the breaking and damage of small property owing to being provided with cavity 305.

More than describing is to explanation of the present invention, is not that institute of the present invention restricted portion is referring to claim to the qualification of invention, and under the situation of spirit of the present invention, the present invention can do any type of modification.

Claims

1. the mill structure of a rubber grinding machine; Comprise movable grinding disc and fixed millstone; It is characterized in that: the matrix end face of described movable grinding disc and fixed millstone is the sphere of scrobicula; The central authorities of said movable grinding disc are provided with cross and grind cutter, and it highly all protrudes from the end face of movable grinding disc matrix, and said fixed millstone middle part is provided with through hole; On the matrix of mill end face; Be positioned at the circle ring area that cross grinds cutter or through hole periphery; It is little that relatively radially dispersing arranged in arrays has the length carbide chip; Its highly gradient be higher than mill sphere end face, promptly blade is higher near the head protrusion matrix end face of mill central authorities, blade is lower near the end protrusion matrix end face at mill edge; At least a slice weak point carbide chip is interspersed is arranged between the adjacent two length of a film carbide chips, and length is the half the of long carbide chip basically, and is positioned at circle ring area in the outer part.