SU99231A1 - Plastering machine - Google Patents

Description

Machines for the manufacture of plaster drani from the workpiece by the method of chipping from the last wide sh; eny with simultaneous cutting of this sh, enu into separate drani known.

In order to increase productivity, the described machine for the production of plaster drani is equipped with a knife carriage, which provides it with a chipping off of a wide shafts from the workpiece and cutting it into a drani of a predetermined width during the forward and backward movement of the machine, flexible leash connected to an endless chain drive.

The chipping of the wide shafts from the workpiece is dried out by means of two blade knives, and its cutting into drani is done by means of disk cutters fixed on one shaft.

FIG. 1 shows the kinematic diagram of the machine; in fig. 2 - view of the knife carriage from the side of the workpiece; in fig. 3 is a section of the carriage according to AA in FIG. 2; in fig. 4 - section of the carriage on BB in FIG. 2

The machine is driven from the electric motor / through the gearbox 2 and the disk clutch 3, which by means of the levers 4 makes it possible, without turning off the electric motor, to stop the machine for the installation of a new billet. From the disk clutch, rotation through bevel gears 5 is transmitted by an asterisk 6, on which an endless plastic chain 7 is put on.

The tension of the chain is provided by a tension device connected with an asterisk 8.

On the machine bed in the guides 9 to 10 the knife carriage // is moved, connected by a flexible chain 12 to a plate chain 7, which is located under the table of the machine and moves all the time in one direction. When the driver 2 passes through the sprockets, the carriage changes its direction of movement. The cutting of the drani is performed during the forward and reverse stroke of the carriage.

The knife carriage consists of a housing 13, in which two holders 14 are planted on the axes with knives 15 attached to them, which together with

holder and out of the carriage plate springs 5. The magnitude of the stand and the frame is determined by the given thickness of the splitting, and can be adjusted by screws 17.

In the carriage body there is a shaft 18 with disc cutters 19 mounted on it, spaced from each other at a distance corresponding to the width of the blade. Gear mounted on top of shaft

20, engaging via idler gear with rack rack

21 attached to the upper rail 9.

As the carriage moves, the gear rolls along the rail and rotates the shaft with disc cutters.

Clamping and feeding the workpiece to | The mesh is carried out by two vertical grooved rollers of 22 liters 23 mounted in brackets on the machine table. The drum 23, connected by a cable system to the pedal 24, is set aside when the workpiece is installed and then returned to the workpiece under the action of weight 25, clamping the workpiece with it.

Pinions are attached at the bottom of the rollers that engage the worm shaft 26. The rollers turn and feed the carriage to the carriage from the leading chain drive using the feed mechanism when the carriage stops at one of the outermost positions.

The feed mechanism consists of two cams 27 fixed on the chain 7, alternately hooking onto the step of the rack 28 and moving the viravo. The rake is connected by a gearing system 29, a ratchet device 30 and a chain transmission 31 to a worm shaft 26. When the cam 27 leaves the gearing with the rake 28, the latter returns to its original position under load 32, and at this time the special leash is connected to the ratchet and turning it drives through a chain drive 31 a worm shaft 26. The cams 27 are located on the chain 7 so that they come out of the engagement with the ledge of the rack 28, and therefore, the feed mechanism is activated while the carriage is in one of the extreme positions.

The splitting of the workpiece on the fray is as follows.

When the carriage meets the workpiece, one knife is pressed into the carriage, and the other one is cut into the workpiece, chipping off chips along the width of the workpiece. Broad chips pass into the gap between the knives and fall under the disc cutters, which cut it into pieces. Finished pieces come out of the carriage on the other side.

When the carriage reverses, the operations are repeated in the same order.

The machine can be used for the manufacture of wide roofing drani, for which the shaft with disk cutters is removed from the carriage.

Subject invention

Claims (3)

1. A machine for making plaster drani from a billet by chipping away from the last wide chip with simultaneous cutting of this chip into separate dranks, characterized by the use of a knife carriage with two iozhami, which provide chip chipping during the forward and reverse stroke of the carriage. 2. The form of the machine according to claim 1, characterized in that the shaft with disk cutters is used for splitting into a predetermined width of the already formed wide chips on the dranium and that the blade shaft is mounted on the chopper in a position that ensures its operation as with direct and iri reverse carriage stroke. 3. The form of the machine according to paragraphs. 1 and 2, characterized in that in order to drive the carriage into reciprocating motion by means of an endless plate chain, a flexible connection of the carriage to this chain is used, in particular in the form of a connecting link from a segment of the same plate chain. FIG. one sc2g , 2 ii L FIG. 3 Zagotov V FIG. four 58 section one/