SU68484A1 - Hydraulic press for hot vulcanization of the bottom of the shoe - Google Patents

Description

The practice of working on presses for hot vulcanization of the bottom of the shoe does not allow one to avoid transferring excessive pressure of the punch through the matrix to the top of the vulcanized footwear and, consequently, in many cases leads to damage to the top material along the edge of the pulling edge. The proposed invention eliminates this drawback and has the peculiarity that, in order to prevent damage to the upper of the shoe, during the operation of the punch, crackers are used associated with the die using t-r and intended to interact with restrictive wedges controlled from the punch.

To control wedges, latch bolts connected with the punch table are used.

FIG. 1 is a diagram of a press; FIG. 2 is a front view of the press, partly in section; FIG. 3 is a side view of the press, partly in section; FIG. 4 is a front view, partly in section, of a wedge device to prevent damage to the top.

vulcanized shoes, and in FIG. 5 is a side view, partially in section of the device of FIG. four.

The press matrix 7 is mounted on a table 2, which can move vertically. The punch 3 is mounted on table 4, which also has vertical movement. The punch table 4 is driven by a plunger 72, under which fluid from a hydraulic network is supplied. The lowering of the plunger 72 is accomplished by flushing fluid from under the plunger.

In order for the punch 3 not to press through the matrix 7 to the shoes during pressing, a force that can cause damage to the material of the shoe upper is provided with a special wedge device that locks the punch 3 and prevents the transfer of excessive pressure through the matrix 7 to the shoes. This wedge device (see Figs. 1, 4 and 5), according to the invention, is as follows: table 2 of the matrix is connected by means of the t 5 to rushes 5, which move together with the matrix 7. In the press frame

525

there are grooves in which the said rusks 5 move. In the press frame, spring-loaded wedges 6 are movably fixed, shown in FIG. 5 in the withdrawn position due to the latch 7, fastened on to the ball b, having an emphasis 9. When the matrix 7 is pressed against the shoe, the punch 3 has another stroke of 20 mm. At the same time, it rests against the abutments 9 with special protrusions and lifts the wedge latches 7. The wedge 6 under the action of the springs enters the grooves and selects the gaps between them and the crackers 5. Thus, the further pressure of the punch 3 on the die 7 is not transmitted to the shoes, but perceived wedges 6.

The dilution and reduction of the halves of the matrix (see Figures 1, 2 and 3) is carried out by another wedge device, each half of the matrix being connected to two wedges / O, connected to each other by a cross member. The wedge W moves in grooves of crackers 77 attached to the die. The matrix is driven by the plungers 7J, 74 and 75 of the hydraulic system in such a way that when the plunger 13 moves upward, the matrix is converged and vice versa. The lower plungers 75 are separated from the upper plungers J3 and 14 by a solid wall. The press diagram (see Fig. 1) indicates the space filled with liquid, P1eich spaces a, b c in the upper plungers are permanently connected by a pipeline g to a high-pressure hydraulic network. The space d of the lower plungers 75 is connected to the hydraulic network through a distributor. When fluid is introduced into Space d above the lower plungers 75, the latter, moving downwards through the pullers 16, tend to lower the system of upper plungers 13 and 14. Moreover, since the cross sections of the plungers 14 are much larger than the cross sections of the plungers 13, the resistance to squeezing the fluid into the network for the plungers 14 will be significantly larger than for the plungers 7J, and therefore the plungers 13 (the die is diluted) are first lowered, and then the plungers 14 (the matrix 526

say) Simultaneously with the supply of fluid into the space d above the plungers 75, the liquid is drained from under the plunger 72 of the punch 3. With this, the samosh satisfies the requirement that the die 7 is diluted when there is no pressure on the punch 3. Subsequently, the punch. 3 is omitted together with table 2 of matrix 7.

When fluid is released from the spaces by the plungers 75, the plungers 13 and 14 tend to move upwards. However, since the resistance to movement of the plungers 13 is less than that of the plungers 14, the first plungers move up faster than the second. This thus satisfies the requirement that the half of the matrix 7 first be reduced, and then the matrix moves upward and is pressed against the shoe. Simultaneously with the release of fluid from the spaces (above the plungers 75, the fluid is supplied under the plunger 72 of the punch 3, and the speed at which the punch is raised is controlled by a special diaphragm.

The pads are rotated toward the side by plungers 77 and 75 connected to the hydraulic network of the punch 3 and plunger 75. One of the plungers 77 pads is permanently connected to the hydraulic network and the other 18 is connected to the network through a distributor. In the working position, the block is held by a special sector lock until the die goes down about 45 mm, which is necessary for the free exit of the heel from the die, after which the die table releases the lock of the pad and the latter is rotated to the side by the action of one of its plungers.

The press is controlled by a four valve distributor, with two valves simultaneously operating. Thus, with the help of a shaft with cams, all control of the press is reduced to rotating the shaft with the handle in two extreme positions, corresponding to the "charging and discharging of the press."

In this case, “press charge means the reduction of the matrix 7 and the installation

pads into position, pressing the die to the shoe and pressing the punch 3, and discharging - relieving the pressure of the punch 3 to the die, diluting the halves of the die 7, lowering the die and turning the shoe to the side.

Subject invention

1. Hydraulic press for hot vulcanization of the bottom of the shoe, equipped with movable dies and punches, independently control A {IManifuSyintp.

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Loaded with plunger systems, characterized in that to prevent damage to the top of the vulcanized shoe, rushes 5 are used when the punch is in operation, associated with the matrix / nr of the help of r 5 and designed to interact with restrictive wedges b controlled from the punch 3. 2. An embodiment of the press according to Claim 6, characterized in that for controlling wedges 6, latches 7 are used, connected by means of stud 6 with table 4 of the punch 3.

FIG. one

fpfl ex. capacitance1: th U, 3 itimp

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Claims (2)

1. there are grooves in which n; and 1 zhuts u11ol and th cyxiipn 5. In the press frame, the movable ukregg-shnie puspruzhny wedge 6, shown in ({) ig. 5 and the withdrawn position due to the latch 7, strengthened by a pair of 6. having a stop I. When the die is pressed against the shoe, the poapso 3 has another stroke of 20 mm. At the same time, he rests with special protrusions on the chiores ./ and lifts the latchings of the wedges 7. Wedge 6 under the action; go to the grooves and select the gap; between them n suhar .J. Thus, yes. (The pressurized) 111e nyajicmia 3 on the matrix / is not transmitted to the shoes, and the sacrifice is wedged f. Dilution and reduction of the halves of the matrix (see Figures 1, 2, and 3) of the oscstvlstvatsya drkhti.m wedgem device .m, iric.m. each butuvina matri1n 1 is associated with .m to; 1in. 10, soybean, with each other's cross member. Clii / O move in grooves with harey //. secured; 1eppa on .matrix. The matrix is driven by ilunger 13. / - / and 15 hydraulic systems in this way. that the movement of the tuner IJ upward is carried out by the reduction of the matrix and vice versa. The lower ports 15 are separated from the upper plungers 13 and / - / c; the wall. The press diagram (see Fig. 1) indicates the space filled with liquid, and the spaces a, b in the upper part of the first junction are constantly connected to the hydraulic network ii coKoro pressure. The space of the bottom silos 15 is connected to the hydraulic network through a distributor. When the fluid is supplied to the space O above the lower chungers / 5, the latter, moving c1 downwards by means of tg 16, try to lower the system of the upper installations / Zi / - /. If;) to.m. since the cross section of the plungers / - / is significantly larger than the cross sections of the irons 13, co-operatively giving out the fluid to the network for the plungers / -7 will mean; 1 but more, than for the irons / J, and of course. first, the plungers 13 are lowered (the die is set apart), and the shutter is lowered by the reducers /./ (the die is lowered). Simultaneously with the flow of fluid into the space () over the Borehole 15 and 15, the fluid from under the plunger 12 of the punch 3 is impelled. Ethyl salon 11 1. h meets the requirement} | ie that the matrix / be diluted with punch J. Subsequently, the punch 3 is lowered together with the table 2 dies. With the release of fluid from the spaces dp; | unzherami 15 plungers 13 and the tendency of the ts to move up. When this is done, since the movement of the plungers is 13, smaller than m3 plungers, the first plungers move up faster, but the second. These standards are met. The requirement that half of the matrices / be first reduced, and then the matrices move up and press against the shoes. Simultaneously, a liquid is extracted from spaces t) above the plungers 15 occurs AND (the liquid is supplied under 12 of the punch 3, and the speed of the iodine is adjusted by a special diaphragm. Rotation of the pad to the side is carried out by a shngunger 17 and / l, connected with the hydraulic network of Jouanson J, and; 1 nzhero.m 15. One of the silt} {zherov / 7 pads is permanently connected to the hydraulic network,:; the other, /, V, is connected to the network through a distributor. 13 working ioloshkk k.isudka held by the solar panel sector until the matrix does not move down by approximately 45 mm, which is necessary for a free exit cable; 1uk from matrix 1, then table mat1 os1 {obede constipation pads and the last action - .vA of one of their own and; 1st arm (1b turns to the side. Presso.m is controlled by a four-channel; 1pan} 1Ym distribution m, and at the same time two Kjraiiana operate simultaneously. This way, with the cam shaft and the cam shaft, all Tipalea iresso.m is reduced to rotating the shaft with the hand lever in two edges 1 and 1, corresponding to "charging and discharging the press." The pads are in the working position, the die is pressed against the shoe and the pressure of the pump is 3, and the discharge is the removal of the pressure of the punch 3 by the matrix, dilution of the matrix halves /, lowering the matrix and turning the shoe to the side. G7 redeme and; about oretyeni 1. Hydraulic press for hot vulcanization of the bottom of the shoe, supplying N1YY with movable matrices and punches, so that it is necessary; 1to control 1 .i1 with the help of plunger systems, and from tol1, to prevent damage to the top of the vulcanizable (, b) -ii when working poins; and applied to hari 5, bonded to the 1st matrix / with the help of t grams 51 and intended to interact with restrictive imin mi 6, controlled by the punch 3. 2. The form of the press according to Claim. 1, characterized in that. that to control the wedges 6 there are used the latches 7. connected with the table - / punch 3. FIG. one FIG. 2  ©:.,. I - - b &teir; .J i -Shch1Sh,; 1G. I wa.fi 4