Conical double-screw extrudes tablet press machine energy-saving mechanismTechnical field
The utility model relates to Tire production associate device, is specially a kind of conical double-screw and extrudes tablet press machine energy-saving mechanism.
Background technology
It is the widely used production equipment of stream in tire manufacturing plant that conical double-screw extrudes tablet press machine, for the manufacture of semi-finished product film.
Conical double-screw is extruded tablet press machine and is formed primarily of conical double screw extruder and tablet press machine two parts.Wherein conical double screw extruder primarily of base, motor, reduction box, gear-box, screw rod, hopper body, lead the compositions such as offset plate, rubber block, hopper; Tablet press machine is primarily of compositions such as base, motor, reduction box, universal roller device, frame, roller components.
Rubber raw materials refines well and puts into hopper body in banbury, be fed forward by the twin-screw extruder in hopper body, by the spacing of rubber block and the guide effect leading offset plate, in the middle of the upper and lower roller being transported to tablet press machine, tablet press machine rotates roller by motor, reduction box, Hooks coupling universal coupling, is pressed into film extruding sizing material.
In traditional structure, extrude the area very large (the cornerite number of degrees are larger) that sizing material (being in screw front end) contacts with roller in compressing tablet district, most of power of tablet press machine is used to overcome the frictional force extruded between sizing material and roller and is wasted.
Utility model content
For the deficiencies in the prior art, technical problem to be solved in the utility model proposes a kind of minimizing to extrude the conical double-screw of frictional force between sizing material and roller and extrude tablet press machine energy-saving mechanism.
The conical double-screw that can solve the problems of the technologies described above extrudes tablet press machine energy-saving mechanism, its technical scheme comprises the packing cylinder of double screw extruder and the upper and lower roller of the tablet press machine just right with the discharging opening of packing cylinder, be provided with between described packing cylinder and upper and lower roller and left and rightly lead offset plate and upper and lower rubber block, difference is that each rubber block extends along the roll surface of corresponding roller to compressing tablet district, and the central angle (that is extruding the cornerite of sizing material and roller) that the elongated end of rubber block is formed on corresponding roller with the compressing tablet position of upper and lower roller is less than or equal to 40 °.
In said structure, owing to reducing cornerite (in traditional structure, cornerite angle is greatly about 70 ° ~ 80 °), the pressure extruding sizing material pair roller barrel reduces, total frictional force significantly reduces, and in the cornerite reduced, extrude the frictional force of sizing material and roller and extrude sizing material to extrude direction basically identical, playing the effect pulling and extrude sizing material, loss of friction is less, thus significantly reduces the power of tablet press machine.
For balance extrudes the uniformity of power and compressing tablet, the distance that in conventional design, upper and lower rubber block extends to compressing tablet district is equal.
Extrude power for increasing and be conducive to rubber extruding, the front end being further designed to the screw rod in described packing cylinder is stretched out discharging opening and is entered in upper and lower rubber block.
The beneficial effects of the utility model:
1, the utility model conical double-screw is extruded tablet press machine energy-saving mechanism and is decreased the cornerite extruded and formed between sizing material and roller, reach the object extruded sizing material and roller and together rotate, and after cornerite reduction, the pressure that roller bears, frictional force all significantly reduce, thus considerably reduce the power of tablet press machine.
2, through measuring and calculating, the utility model can make tablet press machine power decrease 50%, and every platform 450 type twin-screw extrusion tablet press can save more than electricity consumption 500000 kilowatt hour every year, and the effect of energy-saving and emission-reduction is very huge, and economic benefit is also fairly obvious.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of embodiment of the utility model.
Fig. 2 is the structural representation of a kind of embodiment of conventional art.
Figure number identifies: 1, roller; 2, packing cylinder; 3, discharging opening; 4, rubber block; 5, screw rod; 6, cornerite; 7, sizing material is extruded; 8, film.
Detailed description of the invention
Below in conjunction with accompanying drawing illustrated embodiment, the technical solution of the utility model is described further.
Conical double-screw extrudes the operation principle of tablet press machine:
Double screw rod 5 forward extruded rubber time, extrude sizing material 7 and produce larger pressure to upper and lower roller 1, and roller 1 is when rotated, paste roller 1 rotate together if extrude sizing material 7, do not rub, then rotation torque all can be converted into useful work substantially; In fact, due to the opening comparatively large (only keeping off the discharging opening 3 at packing cylinder 2) of upper and lower rubber block 4, cause the cornerite comparatively large (as shown in Figure 2) extruded between sizing material 7 and roller 1, major part extrudes sizing material 7 has very mitre with the frictional force of roller 1 with the direction of motion of extruding extruding sizing material 7, frictional force does not have pulling function to extruding sizing material 7, extrude sizing material 7 and be in sliding mode when roller 1 rotates, do not rotate with roller 1, and due to pressure higher, thus producing a large amount of frictions, the moment of torsion major part of roller 1 is consumed by frictional force.
The utility model is the improvement carried out for the deficiencies in the prior art.
The utility model conical double-screw is extruded tablet press machine energy-saving mechanism and is comprised the packing cylinder 2 of double screw extruder and the upper and lower roller 1 of the tablet press machine just right with the discharging opening 3 of packing cylinder 2, be provided with between described packing cylinder 2 and upper and lower roller 1 and left and rightly lead offset plate and upper and lower rubber block 4, as shown in Figure 1.
The upper and lower rubber block 4 of traditional structure only keeps off the discharging opening 3 (as shown in Figure 2) at packing cylinder 2, and in the utility model, the bottom of upper rubber block 4 extends to compressing tablet district, concrete, the lateral surface of extending part is the cambered surface of mating with the roll surface of upper roller 1, the medial surface of extending part is downward inclined-plane, the top of lower rubber block 4 extends to compressing tablet district, concrete, the lateral surface of extending part is the cambered surface of mating with the roll surface of lower roller 1, the medial surface of extending part is inclined-plane upwards, on, the extended distance of lower rubber block 4 is identical, the central angle (i.e. cornerite 6) that the elongated end of each rubber block 4 is formed on corresponding roller 1 with the compressing tablet position of roller 1 is less than or equal to 40 °, as shown in Figure 1.
In described packing cylinder 2, the front end of twin-screw 5 is side by side stretched out discharging opening 3 and is entered in upper and lower rubber block 4, as shown in Figure 1.
The utility model is by lengthening upper and lower rubber block 4, reduce the opening of upper and lower rubber block 4, thus reduce the cornerite 6 extruded between sizing material 7 and roller 1, make to extrude sizing material 7 together to rotate with roller 1, and after cornerite reduction, the pressure that roller 1 bears, frictional force all significantly reduce, thus considerably reduce the power of tablet press machine.
Adopt the film 8 that the utility model structure is produced, thickness evenly, flat smooth, quality are intensive, speed of production is fast, efficiency is high.