SU374209A1 - - Google Patents

Description

AUTOMATIC MACHINE FOR ASSEMBLY OF BALL PANTS

one

A known machine for assembling ballpoint pens, comprising a drive, a periodically rotated conveying drum and a mechanism for screwing parts.

Due to the fact that in these machines the writing unit in the assembly process is in the handle case in a free state, the technological capabilities of the machine for assembling various models of handles are limited.

The proposed machine is provided with clamping devices mounted on each side of the drum, each consisting of two pairs of spring-loaded jaws, a rod carrying a wedge, rollers fixed on one pair of jaws, and a bracket mounted on a brush and interacting with another pair sponges, the axes of which are parallel to the generator drum. The screwing mechanism consists of a pusher interacting with a clamping device stem, rigidly connected with a push rod, carrying a collet clamp, and means for axial movement and rotation of the spindle and the pusher.

FIG. 1 shows the described automaton, general view; in fig. 2 - clamping device, cross section.

On the frame / (partially shown) there is mounted a cam actuator comprising a camshaft 2, means for inter-operational transportation, made in the form of a rotary drum 3, on which clamping devices 4 equally spaced from each other are mounted. parts of the housing, food assembly, tip and cover. In addition, a fastening mechanism 9, kinematically connected with the camshaft shaft 10 and the electric motor, is attached to the frame.

Each clamping device 4 consists of a base 12 arranged along the generatrix of the drum 3, on which two pairs of jaws 13, 14, and 15, 16 are mounted, tangentially spring-loaded towards each other. The jaws 13 and 14, which rotate in a plane parallel to the base 12, are provided with rollers (7 and / 5) and are adjusted by stops 19 and 20, which limit their angle of rotation. The sponges 15 and 16 are arranged so that their plane of rotation is perpendicular to the base 12. Both pairs of sponges are located along and symmetrically to the axis of the base 12, parallel to which the rod 21 is pressed through the spring 22 into the opening of the base 12. A wedge 23 of the first pair is attached to the shaft 21 sponges 13 VI 14 n clip 24 clamp the second pair of sponges 15 and 16.

(In addition, a stop 25 is mounted on the base 12 to fix the assembled parts in the axial direction.

The screwing mechanism 9 consists of a pusher 26 rigidly connected with a spindle 27 carrying a collet chuck and means for axial movement and rotation of the spindle and the pusher. The axial movement of the spindle is carried out using a lever 28, kinematically connected with the camshaft 10, and the rotation of the spindle is driven from the electric motor 11 via a belt drive 29.

The rotary drum 3 is kinematically connected to the electric motor 30 by means of the ratchet mechanism 31. To implement the height of the drum, a clamp 32 is provided.

The rotary drum B from the camshaft 2 receives a pulsating motion.

The machine works as follows.

In time, the Swivel drum 5 on the five positions simultaneously performs the following operations: feeding mechanisms 5 and 6 of loading the pre-assembled case and hanging unit into the jaws 13, 14 and 15, 16 for the assembly device; feeding the handle tip by the mechanism 7, pushing the tip between the jaws 13 and 14 while simultaneously mating it with the writing unit and the barrel of the handle. In the process of performing these interfaces, the technological base is being successively changed. First, the base is the writing unit, and then as the tip of the sponge 13 and 14 is pushed in, it disperses and the barrel becomes clamped by the jaws 15 and 16. After the barrel has been mated to the barrel, the first is fixed with jaws 15 and 16.

The screwing of the barrel and tip is performed by mechanism 9 as follows. Under the action of the corresponding cam of the camshaft 2, the spindle 27 is mixed progressively along the axis of the device for}. assembly. At the same time, the pusher 26 moving at the same time acts on the rod 21, which with the help of a wedge 23 acts on the rollers 17 and 18 of the jaws 13 and 14 and the last two. At the same time, the jaws 15 and 16 are compressed by the clamp 24. After that, the continuously rotating spindle mates with the handle tip and, as it moves forward, screw the tip with the barrel clamped by the jaws 15 and 16. At the end of the screwing, the spindle 27 and the pusher return to the original position.

Subject invention

An assembly machine for ballpoint pens containing a drive, a periodically rotated conveying drum and a mechanism for screwing parts, characterized in that, in order to expand technological capabilities, it is equipped with equal clamping devices mounted on the drum, each of which two pairs of spring-loaded sponges, a rod carrying a wedge, rollers, the axes of which are fixed on one pair of sponges and are perpendicular to the drum forming, and the bracket mounted on the rod and interacting with another pair of jaws, the yarns of which are parallel to the drum core, and the screwing mechanism consists of a pusher interacting with a clamping rod, rigidly connected to the spindle pusher carrying the collet chuck, and means for axially moving and rotating the spindle and the pusher.

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