SU764804A2 - Automatic machine for making fishing hooks - Google Patents

Description

one

The invention relates to devices for the manufacture of wire products, in particular to automatic machines for the manufacture of fishing hooks.

From the main auth. No. 230771, a machine for the manufacture of wire hooks is known, which contains wire feed mechanisms, straightening, cutting, spitting, hook forming and a mechanism for transferring blanks from one position to another, made in the form of a screw conveyor and profile guiding linking mechanisms. and hook formation.

The spike formation mechanism is made in the form of two installation-adjustable cutters, {1 fixedly mounted on a bracket, and two installation-adjustable cutters fixed on the cage making a reciprocating motion from the levers connected by a common HbJM drive shaft and a punch with a die.

For the formation of sharp edges along with the sharpening of the ends of the workpiece, the formation of burrs is necessary.

A disadvantage of the known device is its low reliability.

due to the fact that at the time of formation of the burr the tool tends to shift the workpiece towards the application of SI.PY.

This leads to disorientation of the workpiece on the screw conveyor, and in the case of a significant deviation from the desired position, it may come off

To this conveyor and cause jamming mechanisms of the machine.

The purpose of the invention is to increase the reliability and performance of the machine.

15

This is achieved by the fact that in the automatic machine for the manufacture of fishing hooks, the spike formation mechanism is additionally equipped with two levers placed on the mechanism housing symmetrically with respect to the central axis of the automaton, which are installed with the possibility of oscillating movement towards one another.

25. by means of a common drive shaft kinematically associated with them, and two cutters mounted on said levers with the possibility of adjusting movement by means of a screw pair.

FIG. 1 shows the kinematic diagram of the automaton; in fig. 2 — spike formation mechanism, longitudinal section; in fig. 3 - the same cross section; in fig. 4 - the same front view; in fig. 5 shows the mechanism for moving the profile guides in front view; in fig. b - the same, side view; in fig. 7 shows the position of the profile guides and blanks before their movement; in fig. 8 shows the position of the profile guides and the workpiece at the end of their radial movement, front view; in fig. 9 - the same, side view; in fig. 10 shows the position of the profile guides and the workpiece at the end of the translational movement of the guides.

The machine contains an electric motor 1, which is connected via a gearbox 2 to a camshaft 3, cams acting on the mechanisms of shaping the hook, the feed mechanism 4, which provides movement of the wire 5 from riot 6 through the trimming drum 7 and the idle position 8 and into the mechanism 9 of forming .

. The spike formation mechanism 9 is made up of a carriage 10 with adjustable cutters 11 fixed on it, and a slider 12 driven by a punch 13. Punch 13 is connected with a cam 14 providing for raising the punch above the die 15.

The carriage 10 is displaced from the lever 16. The spike-forming mechanism 9 also contains adjustable cutters 17 fixed to the bracket 18, a spring 19 acting on the punch 13, two adjustable-adjustable cutters 20 fixed to the levers 21 installed symmetrically with respect to the central axis of the automaton 21 oscillating movement towards one another from a common drive shaft 3 kinematically connected with them.

The spike-shaping mechanism 9 is connected with a screw conveyor 22 to the hook end folding mechanism 23, which is connected to the hook-forming mechanism 24. through the workpiece feed mechanism 4.

The profile guides 25 of the workpiece feed mechanism are hingedly mounted on a slider 26, having radial reciprocating movement using a lever 27 and toothed rails .28 from the camshaft 3 relative to the central mandrel 29 mounted on the slider.

The slider 26 has a reciprocating movement along the axis of the machine from the lever 30, kinematically connected with the camshaft 3

Under the guides 25 at a distance from them smaller than the diameter of the workpiece, an emphasis 31 is installed, which interacts with the workpieces during reciprocating movement of the guides 25 by the slide 26.

The hook formation mechanism 24 is made in the form of punches-prisms that turn the ends of the hook at a certain angle and perform a drive shaft 3 through the toothed rack 32 and radially reciprocating pliers 33, which are made with jaws moving from levers 34 and 35.

The machine works as follows.

The motor 1 transmits rotation through the gearbox 2 to the camshaft 3 with cams, the movements of which by means of levers

0 is transmitted to the hook shaping mechanisms. The feed mechanism 4 moves the wire 5 from the rebellion 6 through the threading drum 7 to the flattening position 8 and into the cutting mechanism 9. in the latter, the punch 13 is raised by the action of the cam 14, and a half ring is stamped on the fed wire with flattened sections of the matrix 15.

Then the lever 16 moves the carriage

10 up to the point where the incisors

11 Press the wire to the adjustable cutters 17.

The spring 19 abruptly lowers the sleeping pole 13 and simultaneously the blanks are cut and the ends of the hook are sharpened. At the time of the cut. the workpiece begins to rotate the screw conveyor 22. A filler fixed on the left cutter 17 fixes the wire

0. at the cutting position in the horizontal plane. In the vertical plane, it is fixed by a special fork mounted on the right tool.

After the punch 13 returns to its original position, the levers 21 from the kinematically associated drive shaft 3 are set in motion. At the end of the forward stroke of these levers, the incisors attached to them

P 20 is inserted into the respective ends of the workpiece before the formation of burrs. At the beginning of the return stroke, the levers 21 begin to rotate the screw conveyor 22, which transfers the workpiece to the bending mechanism 23

 hook ends. ,

When mechanism 23: folding the ends of the hook completes the work cycle, for-. Only the ends are covered with profile guides 25.

o After that, the slider 26 together with the profile guides 25 under the action of the lever 30 moves along the axis of the machine and leaves the zone of action of the bending mechanism 3

5 hook ends.

At the same time, the guides 25 under the action of the lever 27 and the toothed racks 28 radically move downwards by 90. Not income until it stops 31, the profile guides 25 reduce the ends of the hook blank. Prior to meeting the hook with the stop 31 which stops on its way of movement, the tongs 33 turn on and then the jaws 36 use the levers 34 and 35 to crimp the hook ring along the central mandrel 29. Next, the workpiece abuts against the stop 31 and leaves the profile guides 25 and the central mandrel 29.

The pliers 33 rotate 180 in the opposite direction and transfer the hook to the area of the punches prism where the ends of the workpiece are turned at a certain angle.

After turning the blanks of the blanks, the finished hook is dropped into the tray and the mechanisms of the machine return to their original position.

The implementation of the spike formation mechanism with two additional installation-adjustable cutters mounted on levers mounted symmetrically with respect to the central axis of the automaton oscillating towards one another from a common drive shaft kinematically associated with them

significantly increase the reliability of the machine (the cutters simultaneously affect the workpiece and their forces are directed in opposite directions relative to the center of the workpiece, therefore the POSSIBILITY of disorientation on the screw conveyor is practically eliminated) and reduce the time for burr formation, since there is no need to alternate them with special,

.mechanisms.

Claims (1)

Invention Formula Machine for the manufacture of fishing hooks on auth.St. 230771, it is known that, in order to increase the reliability and performance of the machine, its mechanism of pinning is additionally equipped with two levers placed on the case of the mechanism symmetrically relative to the central axis of the machine, with the possibility of oscillating movement opposite to one another by means of a common kinematically associated with them the drive shaft, and two cutters mounted on the said levers with the possibility of installation movement by means of a screw pair. to 2 go y / //////, VZ (//////// (/  ffm iif l L f FIG. Fy R m 1L FIG. eight FIG. 9