CN87215862U - Blanking press for materials driven by electromagnetic coils - Google Patents

Abstract

The utility model relates to a punch press, which is used for punching and pressing the materials such as leather, artificial leather, rubber fiber fabrics, etc. The original punch presses are driven with hydraulic pressure, the energy consumption is large, the operation and maintenance cost is high, and the oil leakage influences the operation. The utility model is characterized in that the original punch press whose total pressure is not very large can be driven by magnet coil instead of hydraulic pressure, the ferroferrite is used as the material of the iron core and the electromagnetic chuck, the electromagnetic attractive force generated by the magnet coil can be directly transferred to the press working pieces by the electromagnetic chuck, and the punching and pressing process is finished. The utility model has the advantages of low energy consumption, small noise, simple structure, cheap maintenance, etc. The utility model also has the advantage of convenient operation and flexible operation of the hydraulic type punch press.

Description

Blanking press for materials driven by electromagnetic coils

The utility model relates to the pressing equipment such as materials such as leather, artificial leather, rubber, plastics and fabrics, relates in particular to solenoid and drives the material stamping machine.

In the past, this class pressing equipment adopted Motor Drive, and promptly common electric press equipment is characterized in being designed and manufactured into and has a higher position, and drawing velocity is very fast, but its maximum shortcoming is that noise is big.Therefore made hydraulic-driven afterwards into, be characterized in also making easily and have a higher position, drawing velocity also can satisfy the processing needs substantially, noise is significantly reduced, but its weak point is equipment and need possesses three cover systems of electric, hydraulic pressure and machinery simultaneously, power needs through twice power conversion, thereby the equipment power consumption is big, the operating cost height, complicated because of hydraulic system itself in addition, thereby management makes troubles to regular maintenance, for example needs the work wet goods in often cleaning and the transposing hydraulic system, and this increases maintenance cost.In addition owing to always keep away the problem of the frequent leakage of oil of unavoidable hydraulic system, thereby restriction is installed in this kind equipment upstairs, and need be difficult to accomplish this point because of the industry operation usually.

Therefore, the utility model is exactly big in order to overcome the power consumption that above-mentioned hydraulic pressure stamping machine exists, the maintenance cost height, and the material stamping machine that adopts solenoid to drive is proposed because of leakage of oil inconvenience is installed in the first-class shortcoming of floor.

The utility model stamping machine comprises fuselage, press work parts and drive unit, the press work parts comprise that one is positioned at the workbench of fuselage casing upper end, this workbench face is made the baffle plate assembly and the brute spring of vertical up-or-down movement relatively, baffle plate assembly comprises baffle plate, cylindrical tube shape column and screw mandrel, above-mentioned column can be made vertically-guided along the cylindrical hole on the fuselage and slide, baffle plate has with the workbench face and is parallel to each other and opposed working face, baffle plate and column link into an integrated entity by the mechanical fastener assembling, baffle plate assembly passes through the brute spring elastic bearing on the box structure of fuselage, one end of above-mentioned screw mandrel is by column body and baffle plate, and handwheel is set thereon, be used for the distance of the relative workbench face of controllable register working face, above-mentioned drive unit is the solenoid drive unit, it comprises solenoid and the coupling iron core thereof that is positioned at underbelly and column below, and the magnechuck that is positioned at this solenoid and coupling position, iron core slightly upper, above-mentioned screw mandrel also forms with the column bottom and is threaded, its other end slides through the fuselage cabinet wall, then forming mount with magnechuck is connected, thereby make magnechuck can drive baffle plate assembly and do ramming motion vertically, finish stamping procedure.

By the following examples and with reference to accompanying drawing the utility model is further elaborated.

Fig. 1 is the main composition that schematically illustrates the utility model example structure.

Fig. 2 schematically illustrates the electric circuit diagram by structure shown in Figure 1.

In view of the general normal use of gross pressure of above-mentioned stamping machine scope at 3～8.Be that example comes the utility model example structure is described further now with 3 of gross pressures.

Now referring to Fig. 1,3 is fuselage, 10 is the upper end of fuselage 3, and as the press work platform of stamping machine, 1 is baffle plate, 2 is cylindrical tubular column, 5 is screw mandrel, column 2 can be done guiding slip vertically along the cylindrical hole on the fuselage 3, baffle plate 1 has Hough (half) shape by making the one end, and forming the one (not shown) with the assembling of the upper end of mechanical fastener and vertical rod 2, an end of screw mandrel 5 is by column body 2 and baffle plate 1, and a handwheel is set in the top, and the about mid portion of screw mandrel 5 and the bottom formation of column 2 are threaded, the working face 9 that makes baffle plate 1 by such setting and press work flat surface 10 are mutually opposed and be parallel to each other, and by baffle plate 1, the baffle plate assembly that column 2 and screw mandrel 5 are formed flexibly is bearing in above the fuselage cabinet wall 14 by brute spring 4.7 is iron core, the 8th, the coupling coil of iron core 7, the driving electromagnetic coil assembly that is made of iron core 7 and coupling coil 8 is arranged on the bottom of fuselage casing, the magnechuck 6 of this coil block is positioned at the position, slightly upper of coil block, the other end of screw mandrel 5 slides through fuselage cabinet wall 14, then forms mount with magnechuck 6 and is connected.

Below be further elaborated with regard to the design that drives electromagnetic coil assembly.

Be that the driving electromagnetic coil assembly of 3 stamping machine is an example now to design a gross pressure:

The version of electromagnetic coil assembly (7,8) as shown in fig. 1, the suction that electromagnet produces substantially can be by following formula

F＝（ (B)/5000 ） ²S

Calculate; Wherein F is the suction that a magnetic pole produces, and B is the magnetic flux density of air gap, and S is the sectional area of a magnetic pole.

Here the area of establishing inside and outside two magnetic poles equates, when selecting ferrite respectively as the material of iron core 7 and magnechuck 6 for use, can tentatively draw the area of a magnetic pole or the external diameter of outer magnetic pole and be about 250mm.

Can obtain peace (circle) number of the magnetic potential in the magnetic circuit and the current values in the coil respectively according to the Kirchhoff's second law in the magnetic circuit again, for example under the present embodiment structural condition, total magnetic potential of magnetic circuit is about 24450 peaces (circle).

If select current density allowable for use is 5 peace/millimeters ²Enamel-covered wire, as long as with bifilar enamel-covered wire and coiled 2445 circles of diameter phi=1.13mm.

In addition,, for example on magnechuck 6, add coiling, and consider that core material improves, further improve the magnetic conductance density of permeability magnetic material, electromagnetic attraction is increased as cooperating other measure of employing.

Now referring to Fig. 2, L represents solenoid, and C represents the contact of contactor respectively, and it inserts in the main circuit, in addition, travel switch is set also in circuit, and is spacing as work.Present embodiment structure DC driven, this can make stamping machine operation safety and reliability.

Like this, when operating personnel push electric button, make to press magnetic coil 8 energisings, thereby magnechuck 6 is produced suction, and it is descending along the vertical slip of the pilot hole on the fuselage 3 to drive whole baffle plate assembly by screw mandrel 5, finish stamping procedure, meanwhile, brute spring 4 by compression, when sucker 6 or baffle plate assembly are run into travel switch, make solenoid 8 outages, electromagnetic attraction will disappear immediately, and baffle plate assembly returns back to original position under the elastic force effect of spring 4.

In addition, find out, plane bearing 11 and 12 are set at the position up and down of fuselage cabinet wall 14 by Fig. 1, bearing 11,12 slip caps are contained on the screw mandrel 5, and bearing 11 is as the lower end bearing of spring 4, the upper end bearing 15 of spring 4 and screw mandrel 5 form and are threaded, and fix with pin.Handwheel 13 is used for the distance of working face 9 relative work tops 10 of controllable register 1, rotate handwheel 13 when clockwise (or counterclockwise), because of bearing 12 is close to inwall 14, thereby it is descending along the slip of the hole on the fuselage 3 to impel vertical rod to drive baffle plate 1, adjusts the distance of 9,10 of working faces, the needs that adapt to punch process, when counterclockwise (or clockwise) rotates handwheel 13, the elastic force resistance that is subjected to spring 4 because of screw mandrel 5 is difficult to descending, slides up thereby impel column to drive baffle plate 1.

In addition, the suction to sucker 6 that produces owing to solenoid will dramatically increase along with the minimizing of gap ε, thereby with the stamping machine that solenoid drives, has impulsive force when punching press, is beneficial to the carrying out of punch process.

In sum, the utility model stamping machine, because adopting solenoid to drive, only consumed energy when solenoid is switched on just only has consumed energy in the mistake of finishing press work is long-pending, thereby the equipment such as present embodiment, a power consumption on working day approximately is not more than 1 degree, and the stamping machine of contrasting fluid's pressure type, because its hydraulic system is ceaselessly moved consumed energy all day, so its energy-conservation effect is very significant.

In addition, the utility model equipment is because adopting solenoid to drive, and makes equipment noiseless almost when not carrying out punching operation.

In addition, not only there is not the problem of leakage of oil in the utility model equipment, and simple in structure, manufacturing cost is descended, maintenance cost significantly reduces, and can make equipment further to miniaturization and development, but still kept easy and simple to handle, the advantage flexibly of fluid pressure type stamping machine.

This equipment can be used for such as leather, rubber, plastics, the stamping-out of stratified fiber fabric or paper, and embossing etc., also can be used for the sheet metal punching press.

Claims (3)

1, the material pressing equipment that a kind of solenoid drives, comprise fuselage, press work parts and drive unit, the press work parts comprise the workbench as the fuselage upper end, this workbench face is made the baffle plate assembly and the brute spring of vertical up-or-down movement relatively, this baffle plate assembly comprises baffle plate, cylindrical tube shape column and screw mandrel, have on the fuselage and make column make the cylindrical hole of guiding slip vertically, baffle plate has with workbench and is parallel to each other and opposed working face, baffle plate and column form one by the mechanical fastener assembling, baffle plate assembly by brute spring be bearing on the box structure of fuselage, one end of above-mentioned screw mandrel is by column and baffle plate, and be provided with thereon and be used for the handwheel of distance between the relative workbench face of controllable register working face, it is characterized in that above-mentioned drive unit is the solenoid drive unit, it comprises the electromagnetic coil assembly of being made up of solenoid and coupling iron core thereof that is positioned at underbelly and column below, and the magnechuck that is positioned at this electromagnetic coil assembly slightly upper, above-mentioned screw mandrel and column form and are threaded, its other end slides through the fuselage cabinet wall, then forms mount with magnechuck and is connected.

2, stamping machine according to claim 1 is characterized in that described solenoid is the DC operation solenoid.

3, stamping machine according to claim 1 and 2 is characterized in that described brute spring between column body and fuselage cabinet wall, and an end of above-mentioned screw mandrel just slides through the inwall of this fuselage casing.