SU1310206A1 - Device for cutting non-metal parts ,particularly, tubes - Google Patents

Abstract

The invention relates to the machining of non-metallic parts such as pipes, for example, from thermoplastics and rubber-fabric materials. The purpose of the invention is to increase the productivity of a device for cutting non-metallic parts. During the working stroke of the rod 17 of the pneumatic cylinder 18, the pressure part 23 of the spring-loaded slider 24 acts on the vertical slider 22, which under the action of the spring 37 is in its extreme upper position. The slider 22, in its movement, acts on the cutting tool 19. In a certain course of movement, a cutting occurs and, following this, the spring-loaded horizontal slider 24 with the surface 26 of the hole comes into contact with the rod 27, as a result of which the slider 24 shifts to the right and its pressure part 23 is released - creates a vertical slider 22. The slider 22 under the action of the spring 37 rises up with the tool 19. 1 3. Clause f-crystals, 2 Il. S g (L o OS o o O5

Description

The invention relates to the machining of non-metallic parts such as pipes, for example, from thermoplastics and rubber-fabric materials.

The purpose of the invention is to increase the productivity of a device for cutting non-metallic parts such as pipes.

FIG. 1 shows a device for cutting non-metallic parts such as pipes, a general view; in fig. 2 - mechanisms for feeding and cutting the material being cut.

The device for cutting pipes comprises a frame 1, which includes a table with an upper plate, a housing in which a billet feed mechanism is mounted to the cutting zone, consisting of a drive shaft 2 with a gear part for engaging with a rack part on a column 3, carrying ratchet mechanism 4 with gear wheel 5. Gear wheel 5 is engaged with gear wheel 6 fixed on shaft 7, on the other end of which roller 8 with notch along chute is mounted. In turn, the gear wheel 6 is meshed with a gear wheel 9 rigidly mounted on the shaft 10, at the other end of which the upper roller 11 is mounted with a notch along the groove.

Kronschtein 12 is rigidly connected to guide columns 3 and 13, which are mounted in guide sleeves 14 and 15 of frame 1, providing free vertical movement of the bracket upward. At the bottom of the column are interconnected by a strap 16, which, in turn, is connected to the rod 17 of the pneumatic cylinder 18, fixedly mounted on the bed table.

The cutting tool 19 is mounted in a flat guide 20 and connected with a finger 21 to a vertical slider 22. The latter, during movement of the bracket 12, interacts with the pressing part 23 under the spring-loaded horizontal slider 24 entering the mechanism for retracting the cutting tool. Slider 24 under the action of the spring 25 provides the greatest departure of the pressure part. Next to the pressing part, the slider 24 has a hole with a conical surface 26. To interact with the surface 26 of the hole, on the slider 22 there is a brush 27 with a corresponding surface.

On the arm 12, a disk 29 is pivotally mounted on top of the shaft 28, which can be fixed by means of a retainer, which is derived from a spring 30 and a ball 31. Depending on the number of disk positions, there is a corresponding number of adjustable stops 32 on it. coil 34 is located between the rollers 8 and 11 and is clamped by them with the help of a screw mechanism with a spindle shaft 35. There is a switch valve 36 on the disk for supplying air into the cavity of the pneumatic cylinder

on the back stroke. To quickly lift the slider 22 together with a rezuppd tool after each cut, the slider 22 has a spring 37.

The device works as follows.

When the pneumatic cylinder is turned on, the shaft 17 moves upwards the whole frame consisting of columns 3 and 13, the connecting rod 16 and the bracket 12 connecting them. At the same time column 3 begins to rotate the shaft 2, which through the ratchet mechanism and the gear of the gear wheel 5 the wheel 6 rotates the shaft 7, and with it the lower roller 8. At the same time, the gear wheel 6 is in engagement with the gear wheel 9, therefore, the shaft 10 rotates with roller 11. The rollers 8 and 1 provide the feed 33 subsequent segment.

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The feeding process is carried out until the frame with the bracket 12 occupies the upper position, depending on the corresponding stop 32 on the disk 29 which came into contact with the switching valve 36 for air supply to the cylinder cavity

5 reverse. During the return stroke, the frame with the bracket is lowered. In this case, the shafts 2, 7 and 10 will not rotate, because the ratchet mechanism in the opposite direction is triggered to idle. The pressure part 23 of the spring-loaded slider 24 acts on

0 a vertical slider 22, which, under the action of the spring 37, is in its extreme upper position. At the same time, the slider 22, compressing the spring 37, begins to move downward and through the finger 21 acts on the cutting tool 19.

On a certain course there is a cut. Following this, the spring-loaded horizontal slider 24 with the opening surface 26 comes into contact with the rod 27, as a result of which the slider 24 moves to the right and its pressing part 23 releases the vertical slider 22. The latter quickly rises with the action of the spring 37 together with the tool 19. Thereby the way is open for the next supply of the workpiece 33. The frame with the bracket 12 is lowered until the pin 38 on the column 13 comes into contact with the switching valve 39 for supplying air to the pneumatic cylinder for the frame stroke and the bracket 12 upwards. The cycle is repeated.

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Claims (2)

Invention Formula . A device for cutting non-metallic parts such as pipes, comprising a housing, a feed mechanism for the pipe being cut and a cutting mechanism, including a cutting tool associated with a slide, a bracket mounted on columns, and an actuator, characterized in that, in order to increase productivity, a cutting tool provided with a flat guide, the slider is spring-loaded, connected to the knife with a finger and provided with a brush with a tapered end, the bracket is made with a horizontal cross member, rigidly mounted on columns and equipped with a slider placed in a horizontal crossbar with the possibility of horizontal displacement made movable and connected to the drive by means of a slat. 2. The device according to claim 1, characterized in that one of the columns is made with toothed cutting, and the feed mechanism of the pipe being cut is made in the form of interconnected driving and driven gears mounted on shafts and two notched rolls installed on the shafts of the slave nor interacting with the creeper, while the gears, with the shaft leading shchestren the crawler is spring-loaded in the direction of being supplied with a ratchet mechanism and executed displacement and made with a tapered bore with serrated cutting, counter serrated Nastya at the end of the slider rod, and column cutting the column. made movable and connected to the drive by means of a strip. 2. The device according to claim 1, characterized in that one of the columns is made with gear cutting, and the feed mechanism of the pipe being cut is made in the form of interconnected driving and driven gears mounted on shafts, and two notched rolls, installed on the shafts of the slave gears, with the shaft leading shchestorn 32 - just Fig2