SU941325A1 - Apparatus for cutting out products - Google Patents

Description

(54) DEVICE FOR CUTTING PRODUCTS

one

The invention relates to devices for processing plastics and, in particular, to devices for machining hollow cylindrical billets of polymeric materials and can be used for processing other materials.

A device for cutting articles along a closed contour from hollow cylindrical blanks is known, comprising a base with a drive unit for its rotation, a copier and a cutting head mounted for movement along the copier by means of rollers 1.

The known device has low productivity and does not provide stability of cutting conditions, which affect the quality of processing.

The purpose of the invention is to increase productivity by providing a semi-automatic mode of the cutting process.

The goal is achieved by the fact that a device for cutting products along a closed contour from hollow cylindrical billets, coJ version, its base with driven

the knot of its rotation, the copier and the cutting head, fitted with the ability to move around the copier by means of rollers, is equipped with a carrier and end cam, kinematically connected with the cutting head, while this end cam is kinematically connected with the cutting head by rollers, and the carrier by gear which has a common drive with the base rotation assembly.

ten

A gear transmission consists of two gears, one of which — the leader — is made in the form of a sector, the arc length of which along the pitch circle is equal to the pitch circle length of the second driven shaft, and the base rotation assembly is equipped with a cylindrical cam kinematically connected to the base.

The device is equipped with additional cutting heads and plate, while

20 all cutting heads are mounted on the plate.

Claims (3)

FIG. I shows the device, a general view; in fig. 2 view A in FIG. G, FIG. 3 is a section BB in FIG. one; in fig. 4 of FIG. 3 in FIG. 5 is a sectional view BB in FIG. 1. The device comprises a base 1 mounted on the carriage 2 on the axis x 3 with a mechanism for securing blanks, for example, using a vacuum; a base rotation unit comprising a fork 4 with toothed sectors 5 and gear 6 and a rail 7 with a roller 8, two copiers 9, a cutting head 10 with a drive mounted on a plate 11, which is located in sliding guides 12; in one case, with each copier, a carrier 13 was installed with a gear 14 and a strip 15 placed in a groove with rollers 16 and a roller 17 entering the hole of the fl plate; two end cams 18, on the shaft of each of which is fixed on one side toothed sector 19, and on the other side of the gear 20, which engages with a gear wheel 21 mounted on the output shaft of the reducer 22. At the opposite end of the gearbox shaft there is a cylindrical cam 23. The gearbox is connected by a chain drive with a variator 24 driven by an electric motor 25. Copiers, a plate with a cutting head are placed on a support 26, which, on four columns 27 connected in pairs by strips 28 carrying rollers 29, sets with in the bed 30 devices. Two gear sectors 31 are fixed on base 1. The carriage has two locks 32 and is mounted on rollers 33 fixed on the frame. The device works as follows. The carriage 2 is pushed out of the device into position loads, the caliper 26 is in its extreme upper position. The blank is manually mounted on the base 1 on a supporting surface and fixed to it. The anterior carriage slides into the device, with the locks being inserted into the holes in the beds, the toothed sectors 31 of the base are engaged with the toothed sectors 5. of the turning unit. The drive of the rotation of the cutting heads and the drive of the device are turned on. The cylindrical cam 23 rotates by moving the roller 8 with the rake downward, while with the help of the pinion 6, the shaft with sector 5 rotates the gear sectors 31 with the base 1 in the direction opposite to the cutting head. At the same time, the end cams 18, rotating, move the rollers 29 with columns 27, and with them the caliper with cutting heads to the lower position, after which the base with the workpieces is rotated to the side of the cutting heads and the tool enters the workpiece to the required depth. Turning, the gear sectors 19 engage with the brush 14 and rotate the carrier 13, the rollers 16 move along the contour of the copier 9, and the rollers 17 respectively move the plate AND with the cutting head, which cuts out the product. Odiovremeinr with the movement of the cutting head on the coitur rotates the base 1 to the appropriate angle. At the end of the cutting, the end cams using rollers and columns raise the caliper to the upper position, the base is rotated to the initial position, and the drive of the device is automatically turned off. the latches are released and the carriage is moved out of the device to its original position. After this, the cycle repeats. The invention makes it possible to create a continuous, without stopping and jerking, cutting process in a steady mode, which can be adjusted depending on the mechanical properties of the workpiece and the requirements to the quality of the cut surface by changing the rotational speed of the end cylindrical jaws having a common driver. and improves the quality of products. Claim 1. A device for cutting products along a closed contour from hollow cylindrical billets, comprising a base with a drive unit for its rotation, a copier and a cutting head, installed with the possibility of movement on the copier by means of rollers, characterized in that in order to increase productivity by providing semi-automatic mode of the cutting process, IT is equipped with a carrier and an end cam, kinematically connected with the cutting head, while the end cam is kinematically connected with the cutting head This is done by means of rollers, and the carrier by means of a gear drive that has a drive that is common with the node by turning the base. 2. The device according to claim 1, of which the gear consists of two gears, one of which — the leader — is made in the form of a sector, the arc length of which along the pitch circle is equal to the length of the pitch circle another driven shaft, and the base turning unit is provided with a cylindrical cam, kinematically connected with the base. 5941325 " 3. The device according to claim 1, distinguish-sources It is due to the fact that it is supplied with additional, taken into account in the examination with cutting heads and a slab, with the 1. USSR author's certificate N 649537, all cutting heads are mounted on the plate-cl. From 03 to 33/04, 1977. (prototype). "L S5 AG 55