SU426918A1 - DEVICE FOR Wrapping Pieces - Google Patents

Description

The invention relates to wrapping devices intended for wrapping piece objects, such as cylindrical capacitors, with heat shrinkable electrical insulation film, and can be used in the radio industry.

A device for wrapping piece objects containing a drum for holding and supplying wrapping material, having an inner sleeve with radial holes, a shell with radial holes and a vacuum chamber, a roll holder of the wrapping material, a pressure roller, a knife, a glue holder, a feeder is known. items and drive.

The known device is unreliable in operation and does not provide for the packaging of cylindrical objects, the size of capacitors, of various dimensions with length of wrapping material that is not equal in length.

The distinctive feature of the proposed device is that the gate between the holes of the sleeve is equal to the step between the holes of the shell mounted on the sleeve with the possibility of their mutual rotation, the feeder is made in the form of a tray, under which two swinging arms are fixed. One lever at the end has a roller, and the other is equipped with a plate located under the roller, with

In this way, the glue applicator and the knife are fixed on the swing arm. In addition, the shell from the outside, in the area of the holes, is provided with elastic grids.

FIG. 1 shows the kinematic scheme of the device proposed; in fig. 2- drum, longitudinal section; in fig. 3 — mechanism for reciprocating swinging motion of the sleeve, longitudinal section; in fig. 4 and 5 are a diagram of the position of the glue applicator with a maximum a and a minimum b length of the cut film, longitudinal section; in fig. 6 - a drum during operation of the device, a longitudinal section (working positions I, II and III).

The piece wrapping apparatus has a drum / for holding and supplying wrapping material having an inner sleeve 2 with radial holes, a shell 3 with radial holes, wherein the slide between the radial holes of the sleeve 2 is equal to the step between the holes of the sleeve 5, which, in turn, mounted on the sleeve 2 with the possibility of their mutual rotation and from the outside in the area of the holes provided with elastic pliers 4, and the vacuum chamber 5 and 6; roll holder 7 wrapping material; pressure roller 8; knife 9 and glue applicator 10, reinforced by a wobbler.

lever 11; a feeder of objects made in the form of a tray 12, under which two swinging arms 13 and 14 are strengthened. The lever 13 has a roller 15 at the end, and the lever 14 is provided with a plate 16 located under the roller 15.

The device also includes a drive consisting of an electric motor 17 for driving through a gearbox 18 of a camshaft 19 and an electric motor 20 for driving a furnace 21, in which the film is heat-shrinkable.

Two-profile cams 22 and 23 are designed to drive the movement of the levers 13 and 14 and, with the help of a nut 24 (Fig. 2), are fixed on the inner sleeve 2 and fixed one relative to another.

To transmit the rotation in the inner bushing 2 from the shell 3, there is a pin 25, which is inserted into the groove at the end of the sleeve 2, depending on the length of the film being wrapped, during adjustment of which the shell 3 comes out of engagement with the pin 25.

The rods 26 and 27, moving reciprocating, are fixed to one of the arms of the lever //, installed in turn on the camshaft 19, and serve to lower, raise and transverse movement relative to the film of the glass of the applicator 10 with the shoe 9. Glue comes from glass 10 through the tip, in the hole of which felt or felt is placed. A screw 28 is mounted for braking the pin 27 as it moves.

The bracket 29, which is hingedly connected to the rods 26 and 27, serves to secure the cup 10 and the knife 9, and the pin 30 of the rod 26 enters the longitudinal groove of the rod 27, due to which the rods 26 and 27 move reciprocating relative to each other.

With the help of the cam 31 and the lever 32, the rods 26 and 27 are moved forward, and with the help of the spring 33 - back.

A spring-loaded pawl 34, which is inserted into the groove of the disk 35 connecting the lever // with the camshaft 19, is strengthened on the lever 11. The number of disk grooves is equal to the number of grids 4. Roller 36 (FIG. 3), mounted on lever 37, garychem for yuchet mids of the mechanical groove of the disk 35 through the roller 36 and the rod 37 lever: 11 smoothly returns to its original position.

The spring 38 presses the roller 36 to the profile of the face groove of the disk 35, and the adjusting stop 39 restricts the rotation of the lever (/) / forward while applying glue and cutting the film.

The rocker 40, controlled by the cam 41, rests at one end on the vacuum valve 42, and is fixed at the other end (Pinch roller 8.

The contact plate 43 is mounted on a drum / to remove static electricity charges from the film.

The device works as follows.

The capacitors are placed in the loading tray 12 (Fig. 4) and gravity pulls the lever 13 by the force of gravity. When the beginning of the grating 4 coincides with the beginning of the film, the pressure roller 8 is lowered and the film is attached to the bar that has been created by the vacuum tube that sticks to the grid 4 and travels with the drum. At this moment, the lever 11 is connected via the camshaft 19 to the drum 1, and the glass of the applicator 10 and the knife 9 fixed on it are lowered onto the film, making a circular movement together with the drum / (position I, Fig. 6 ), a layer of glue and a cut is deposited on the film (a strip is laid in the middle, a section of a predetermined length separated from the roll, at the beginning and end of which a layer of glue or solvent is applied. The cut of the film ends when the knife approaches the jumper separating the vacuum chamber 5 and 6 (position II, fig. 6).

After the film has been cut, the pressure roller 8 rises up, and the lever 11 smoothly returns to its original position, raising the glass of the applicator 10 and the knife 9, and the vacuum chamber 5 (Fig. 4) is connected to the atmosphere, and the end of the film releases from the roll, held onto the drum / (fig. 1) using the roll holder 7, sliding along the drum until the beginning of the next cycle.

A piece of pleiki pulled to the drum /, with the help of the vacuum chamber 6 (Fig. 4), moves with the drum / until the first row of holes of the lattice 4 goes beyond the limits of the vacuum chamber 6. At this moment, to the film segment covered with a layer of glue or solvent, the roller 15 presses the capacitor, which is glued to the film segment and, rotating around its axis due to the friction forces between the elastic grid 4 and the roller 15, winds the film on its surface until it turns completely and seals the second end of the film ( position III, fig. 6).

Further, the roller 15 moves away from the drum 1 at a small angle (Fig. 4), releasing the wrapped capacitor, which is unloaded into the gap between the drum / and the outgoing lever 14 and fed by means of the conveyor 44 to the furnace 21 for heat shrinking of the film.

After returning the lever 14 (Fig. 4) to the forward position, the swinging lever 13 moves away from the drum / until the next capacitor is released, and the cycle repeats.

Subject invention

Claims (2)

1. A device for wrapping stuffed objects comprising a drum for holding and feeding a wrapping material, having an inner sleeve with radial holes, a shell with radial holes and a vacuum chamber, a roll holder of the wrapping material, a pressure roller. a knife, a glueing device, a feeder of objects and a drive, characterized in that, in order to pack cylindrical objects, such as capacitors, of various dimensions with lengths of wrapping material that are equal in length, the step between the holes of the sleeve is equal to the step between the holes of the shell, impaled - on the sleeve With the possibility of their mutual rotation, the feeder is made in the form of a tray, under which two swinging arms are fastened: Г, a, “here one lever has a roller at the end, and the other is equipped with a plate placed under the roller; The glue and the knife are fastened to the swing arm. 2. The device according to claim 1, characterized in that, in order to increase the reliability of the device in operation, the shell from the outside, in the area of the holes, is provided with elastic grids. p5 1 99 , - S and K if it is variable l it I-; | .1Щ g | ..., ... h. .-, -,. 1 - | - Whoa I Phi 2.Oakuum post - / I Lll FIG. Fig 5