SU1729669A1 - Device for measured cutting of long materials - Google Patents

Abstract

The invention relates to equipment for cutting lengthy material, can be used in electrical, radio engineering and other fields of technology and allows you to expand technological capabilities by increasing the range of lengths of lengthy material being cut. The device contains a crank-crank mechanism, the feed and pinch rollers, the mechanism for transferring the movement from the crank to the feed roller, the cutting mechanism and the mechanism of exact freezing. The mechanism for transferring motion from the crank to the feed roller is made in the form of a rail associated with the gear of the feed roller, installed with the possibility of swinging together with the bearing shaft around the axis of the feed roller with the connecting rod inserted into it, which is installed with the possibility of interaction with the rail through the damper spring, and the fine-tuning mechanism is made multi-disk with the possibility of successive rotation of each previous disk relative to the subsequent one up to its stop, each of the rotary disks associated with a stopper m. 5 il.

Description

The invention relates to equipment for cutting lengthy material and can be used in electrical engineering, radio engineering and other fields of technology.

Closest to the present invention is a device for measuring cutting of lengthy material, where the material is fed from the crank through the gear sector, which has a spring damper that allows you to adjust the mechanism of the exact measurement of the length of the material being cut. A device with a crank material feed mechanism allows smooth moving, acceleration and stopping of the material (according to the sine law) and cutting during stopping.

The exact metering mechanism eliminates the error of manufacture and adjustment of the crank and the gearing errors, as well as facilitates fine tuning for the length of the material being cut. The disadvantages of this device are that the exact metering mechanism assumes no more than one revolution of the feed roller, which limits the length of the material. The gear sector with damper springs, rather complicated to manufacture, does not ensure normal operation with large lengths of the material being cut.

The purpose of the invention is the expansion of technological capabilities by increasing the range of cut lengths.

Figure 1 shows the general scheme of the device for dimensional cutting of lengthy material; figure 2 - view B in figure 1; on

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fig.Z - section GG in figure 2; figure 4 is a view In figure 2; figure 5 is a view of And figure 1;

The device for dimensional cutting of lengthy material contains an electric motor 1, a reducer 2, on the axis 3 of which an adjustable crank 4 is fixed with a screw 5 and a nut 6 having a pin 7 connected by a connecting rod 8 with a rail 9 acting on it axially through the sleeves 10 and 11, which are integral with the connecting rod 8, the washers 12 and 13, and the damping spring 14. The rail 9, leaning on the bearing link 16 swinging around the shaft 15, engages with the gear 17 to transfer the rotation roller 18 through the obturator clutch 19, braked by the brake 20. At the end of the shaft 15, an anvil 21 is placed, moving between the anchors 23 and the anvils 24 and 25 that are adjustable on the limb 22 of the ring. At the opposite end, the ring 23 has a protrusion 26 for acting on a similar protrusion 27 of the ring 28, the opposite end of which has a protrusion 29, etc. for the stop and the protrusion 30 of the last ring 31 fixed on the pipe 32, fixedly connected to the support 33. All the rings (23 and 28) are mounted on the shaft 15 with the possibility of installing more rings and, except the last ring 31, it is impossible to rotate pipe 32, eat and; -; they are fixed by stoppers 34 and 35, which enter the corresponding openings of the rings and are able to be fixed in the extended position. A cutting knife 36 with a cutting edge 37 is attached to the axis 3 of the gearbox, and the feed material 38 is fed from the bay 39 and. pressed by the roller 40 to the feed roller 18, passes through the guide sleeve 41 under the knife 36.

The device works as follows.

Rotation from the electric motor 1 through the gearbox 2 receives a crank 4, the radius of which is adjusted to the length of the cut wire by moving the nut 6 with a screw 5c increasing this radius when adjusted to 1-2 mm.

The rotational movement of the crank 4 converts the oscillating-translational movement of the rail 9 through the connecting rod 8 washers 12 and 13 and the damper spring 14, which reversely rotates the gear 17 and the shaft 15. When the shaft 15 rotates counterclockwise due to the coupling 19, the feed roller 18 begins to rotate, feeding the wire 38 from the coil 39 through the guide sleeve 41. Rotating with the feed roller, the movable stop 21, having made the way to the stop 25, abuts against it

and stops if the ring 23 is locked by the stopper 35, measuring the length of the material being cut along limb 22. If the length of the cut material does not fit into

the length of the entire limb is 22, the stopper 35 is removed and now the ring 23 has the ability to rotate relative to the ring 28, from the stop 26 to the stop 27 and back, locked by the stopper 34, by an amount equal to

limb is 22, and the additional length reading starts at zero limb 22.

If the ring 23 is not enough, the stopper 34 is removed and the ring 28 rotates relative to the ring from the stop 29 to the stop 30

again by an amount equal to the capabilities of the limb, and again the additional length reading begins with the zero of the limb 22, but now in addition to the twist on the double possibility of the limb 22, etc. before the collision of the last but one stop 29 with the stop 30 of the stationary ring 31. At the same time, the contact between the stops is ensured by adjusting the crank adjustment 1-2 mm, and the excess is damped by the damper spring 14. Then the rail 9 starts the reverse movement due to the crank mechanism. The shaft 15, rotating clockwise, disengages the overrunning clutch 19 from the feed roller 18, which remains in place thanks to

the brake 20, while the continuously rotating knife 36 cuts off a long material fed to a predetermined length.

The movable stop 21 stops the shaft 15 and the rail 9, and the damper spring 14

compensates for the excess crank radius adjusted. The cycle is repeated.

The use of the proposed device allows an increase in the range of lengths of the material being cut, since one-time rotation of the feed roller is possible and the design of the fine-tuning mechanism allows this. Swing rail designs with a single damping spring simultaneously with

5, by simplifying the design, allows the fine tuning mechanism to repeatedly move the feed roller with digestible transfer dimensions.

Claims (1)

0 claims A device for dimensional cutting of lengthy material, comprising a crank mechanism, a feed roller with a gear drive gear and a pinch roller, a mechanism for transferring movement from the crank to the feed roller, a mechanism. The cutting and fine-tuning mechanism for the length of the material being cut, characterized in that, in order to expand technological capabilities by increasing the range of cut lengths, the mechanism for transferring motion from the crank to the feed roller is designed as a rack mounted with the gear of the feed roller, Swing around the axis of the pickup roller together with the support earring inserted into the device and attached to the rail, and the connecting rod mounted in the rail interaction with the rail through a damper spring, and the fine-tuning mechanism is multi-disk, with its disks provided with stops and mounted with the possibility of successive rotation of each previous disk relative to the next one before interacting with its support, each of the rotary disks entered into the device stoppers. Jptfi j  at