SU61202A1 - Conveyor Press for Hot Vulcanization - Google Patents

Description

The proposed conveyor press is intended for hot vulcanization of leather bottom shoes manufactured from rubber.

It is of the type of such presses with molds fixed on the conveyor, opened under the action of copiers. These molds are equipped with special devices to maintain constant pressure in the mold during vulcanization.

Thus, in the proposed press, all auxiliary pressure control operations are mechanized and manual work is required only for three working processes: putting the shoe on the mold, cleaning the mold and laying the rubber and shooting the shoe from the shoe. These operations are distributed among three workers, each of which takes all the time only one of them.

Mold pressure regulators operate on the principle of constant pressure, which means that their design is much simpler than that used for these complex, expensive and cumbersome presses.

According to the invention, the maintenance of a constant pressure in a conveyor press of the specified type in the mold during the vulcanization is achieved by the fact that each mold is provided with a spring-loaded pressure regulator acting on its punch that is automatically activated after pressing the block from one HI copier is automatically turned off copier. At the same time, to keep the spring pressure regulator during vulcanization in a compressed state, spring-loaded pawns fixed to the fixed bracket, interacting with a lever controlled by a copier, are used. These dogs, when compressed by the spring regulator under the action of the copier, drop under the lower holder of the regulator.

No. 61202

FIG. 1 shows a vertical section A-A of one section of the proposed press with a mold; in fig. 2 - side view; in fig. 3 is a top view; in fig. -4 - a general view of a conveyor press with sections and molds in various working positions, conventionally rotated: by 90 °; in fig. 5-- an end view; in fig. 6 is a plan view.

In the press represented in the drawings, 42 sections with molds are assumed.

Each section carrying a mold (see Figs. 1, 2, and 3) consists of a housing / to which are attached, on each side, support rollers 2 of chains 57 (see Fig. 4).

On top of the casing, the guides 3 for the inserts 4, 5 of the die are fastened through which the rods 6, which are attached to the rocker arms 7, pass along the edges.

A nut 8 is attached to the die insert 5, in which BINT 9 is placed, which is connected to the clutch 10 of the friction disk //.

Punch J2 With heater 13 is attached to the plate of the central stem J4, having guide fingers / 5.

A pressure regulator is located under the body / and is arranged as follows. A stem 16 is attached to the stem 14 with ears for earrings 18, worn on the fingers 17. In the middle part, a clutch 22 with the fingers 21 for the sliders 19 pressed by the springs 20 to the coupling 22 is attached to the stem 14. At the ends of the fingers there is a thread and nuts 23 to press the springs 20. To the sliders 19, the hinges 18 and 24 are hinged.

The bottom holder 25 of the pressure regulator has eyelets 24. A bracket 30 is attached to the body / section below, having a central opening for guiding the bottom holder 25.

On the fingers 27 of the bracket 30, the dogs 26 are put on, pressed against the lower holder 25 by springs 29, put on the fingers 28. The lower ends of the dogs 26 cooperate with the lever 34, resting their shoulders. The lever passes through the bottom cage window and is attached to the bracket. The lever 34 is held by the spring 35.

In the lower part of the casing 25 there are lugs 31, on the axis 33 of which a roller 32 is fitted. Along the edges in the middle part of the body there are guide holes 37 for the columns 36,

In the lower part of the columns with the help of fingers 47 is fixed a collar 46, provided in the middle part with rollers 48, put on fingers 49.

A latch 50 is placed in the central part of the housing 1, holding the columns 36 in the lower position during mold operation.

In the upper part of the column 36 there are lugs through which the fingers 38 of the upper cushion 39 of the form pass.

In the central part of the cushion 39 there is a screw hole for the screw 43, the lower end of which is placed in the tide of the support plate 41, which carries the pad 40. The support plate 4 / is equipped with guide pins 42. A clutch 44 with a friction disk 45 is fixed to the upper end of the screw 43 .

The roller 52 of the bracket 51 attached to the pad 39 serves to rotate the pads.

To install the pad 40 in a certain position, a latch of the usual type is used, consisting of a stopping stopper. Stationary spatial guides. 55 serve as copiers for turning the block to the extreme position (see FIG. 2).

Copier 54 (see Fig. 4) is intended to turn off the pressure, which is performed as follows.

The lever 34, moving on the copier 54, rises and acts on the pawl 26, as a result of which the pawns turn around the pins 27 and release the lower sleeve 25 with the pressure regulator.

Copier 55 serves to lift the block, copier 55 to compress the pressure regulator system. Chains 57 interconnecting the sections are put on sprockets 58 fixed in frames 59 and driven in rotation by a worm gear 60 from engine 61.

The other motor 62 (see Fig. 6) is intended to dilute the inserts 4 and 5 of the die.

In addition, there is also a motor 63 for reducing the inserts 4 and 5 of the die, a motor 64 for lifting the pad 40, a motor 65 for lowering and pressing the pad 40 against the die.

The action of the press is as follows.

In position / Fig. 4, the end of the vulcanization takes place, and the lever 34, moving along the inclined copier 54, releases the pawls 26 holding the pressure regulator system in a compressed state.

In the position // of the friction disk I, the passage past the disk of the engine 62 is driven last, resulting in the matrix inserts 4 and 5 being diluted, and at the same time as the section is moved in this area, the fixed latch 50 of the release column 36 of the section is rotated.

The /// position shows the lifting and turning of the block 40, where the roller 48, passed over the copier 55, lifted the pad, which, with further movement of the section, turned with the help of the roller 52, sliding along the guide of the copier 53.

In position IV, the boot is shot from pad 40.

In position V, the mold is cleaned and raw rubber is laid.

In position VI, the inserts are flattened by the action of the motor disk 63, with which the friction discs L of the mold die come in contact, and the boot is put on the shoe in the same area.

In position VII, roller 52 sliding along copier 53 turned block 40 into working vertical position, after which column 36 of the section lowered from movement of rollers 48 along copier 55. Latch 50 returns to its original position, keeping column 36 in the lower position, after which the pads are pressed using the engine disk 65 through the friction disk 45.

In position VIII, roller 32, moving along copier 56, squeezes the regulator system, and the pawls 26 drop under the lower sleeve 25, keeping the regulator system in the compressed position, exerting pressure on the plunger 12.

From position V / II, i.e., from the moment the punch pressure starts to rubber, the molding of the bottom of the shoe and the vulcanization process begins, which lasts all the way to the position /.

Throughout this section, the pressure is made by the regulator, which is under the action of the compressed springs 20.

Thus, as excess rubber is released, the punch is raised by a system of earrings 18 and 24 to a fixed position in the die.

With the raising of the punch, the angle of inclination of the compressed earring system 18 and 24 is also changed, due to which the pressure on the punch increases and provides for trimming the rubber outlets.

- 3 - № 61202

No. 61202

Product Invention

Claims (2)

1. A conveyor press for hot vulcanization of the bottom of the shoe, provided with molds fixed on the conveyor, opened and closed by the action of copiers, characterized in that, in order to maintain a constant pressure in the mold during vulcanization, a pressure regulator acting on her punch, automatically activated after pressing the block from the copier and automatically switched off from the copier after the end of vulcanization. 2. The form of the conveyor press according to claim 1, characterized in that to hold the spring pressure regulator during vulcanization in the working (compressed) state, spring-loaded pawns fixed to the fixed bracket are used, interacting with a copier with a lever and dropping under the bottom the holder of the regulator when compressed under the action of the copier.  ///////// 7 // 77 //////// У /// - // /. y- , - / fix liK   x FIG I Vuz.S Oh j iJk: