SU458972A3 - Item Labeling Machine - Google Patents

Description

machines in case of excessive accumulation of items behind it.

In the inclined roller guide of collector 6, in front of the locking mechanism 10 and the probe of 9 objects, there are switches 11–13 of a sub-pressure at the entrance of the machine, designed to control the speed regulator 3. The pneumatic system simultaneously controls the speed controller 3 and the locking mechanism 10.

The operation of the machine is controlled by a pneumatic valve 14, manually operated. In position a, valve 14 is set to activate the shut-off mechanism 10. In position b of the valve, pressure is removed from the pressure pipes leading to shut-off mechanism 10 and the piston of the cylinder 10 is moved by the spring to the position is open. From the supply line 15, the compressed air passes through the service unit 16, the reducing valve 17, the pneumatic valve 18 and the throttle valve 19 into the cylinder 20 connected to the controller 3, the piston of which slowly moves to the maximum position and the machine acquires great speed. At the same time, air is removed from the opposite side of the piston through the throttle valve 21 and valve 18.

Single or joint operation of non-switches 11-13 of the backwater does not affect the operation of the machine.

If valve 14 is set to position in, and there is not a single product at the entrance to the machine, then the piston of the locking mechanism 10 is loaded with pressure through the magnetic valve 22, which is in the r position, the double non-return valve 23 and the throttle valve 24, resulting in the locking mechanism 10 closes. At the same time, the valve 18 is switched by the control system from position r to position e, and the compressed air flows from the reducing valve 17 through valves 18 and 21 into the cylinder 20, moving the piston to the minimum position, while the machine works at a slower speed.

When the switches 11 and 12 are actuated by the action of objects that have reached the maschine input, the corresponding contacts are closed, the relay 25 is ignited, and its contacts are closed. Due to this, the magnetic valve 22 is installed under the valve and switches to the e. Position. Air is removed from the cylinder of the locking mechanism 10 through the valve 24, the double non-return valve 23 and the magnetic valve 22, after which the locking mechanism opens.

At the same time, the pressure in the control system is relieved, and the valve 18 moves to the r position, so that the piston of the cylinder 20 moves to the maximum position in accordance with the pressure established in the pressure reducing valve 17, and the machine speed increases. When the switch 12 is triggered, the machine remains in this position, since the switch 11 is overlapped by the holding contact of the relay 25.

If the switch 12 no longer works due to the rare supply of objects, the contacts of the relay 25 retract, and the solenoid valve 22 switches to the position G. The mechanism 10 closes and the machine speed decreases, as described above. The same action triggers the switch 13 at the output of the machine. The opening of the locking mechanism 10 is carried out with the simultaneous operation of the switches 11 and 12 or with the switch of the SWITCH 13.

If valve 14 is installed in youth b, then regardless of the position of valve 22 and switches 11, 13 the cylinder of the locking mechanism 10 is filled with compressed air through the double non-return valve 23, and the swivel mechanism is closed. At the same time, valve 21 switches to position e, while the speed of the machine decreases.

In the car (Fig. 1), it is possible to implement a smooth automatic adjustment (Fig. 2) of performance. For this, the pressure reducing valve 17 is connected to the switch I in such a way that, with increasing deviation of the switching valve, the initial pressure of the pressure reducing valve 17 increases and, consequently, the speed. In this case, the deviation of the switching valve, which switches to overcome the spring force, depends on the size of the sub-pressure on the collector 6 and therefore is a measure of the speed of the machine. Valves can be connected, for example, by linking a switching valve with a pressure reducer. It is also possible to reposition the pressure reducing valve by means of an electric or electronic auxiliary speed control system.

In another machine control variant (Fig. 3), the speed controller 3 is located on the drive side. For manual speed control, there is a device 26 with a gear and a toothed rack 27, and for an automatic speed control there is a cylinder 28 with a piston with a simple action.

In position b of the manually controlled valve 14, the compressed air is exhausted and there is no automatic capacity control. The piston of the cylinder of the locking mechanism 10 and the piston of the cylinder 28 are pressed by the springs in the position, respectively, "open and" maximum.

To activate the locking mechanism 10, the manually controlled valve 14 is set to position a, as a result of which the piston of the locking mechanism is pressurized through a double check valve 29 and a throttle valve 24. At the same time, the cylinder 28 is filled with compressed air through another check valve 30 and the throttle valve 31 due to which the speed of the machine decreases.

To switch on the automatics, the valve 14 is set to the crescent. In this case, if the switches 11 and 12 do not work, the double non-return valve receives pressure from the magnetic valve 32 set in the r position, as a result of which the pressure is transferred to the cylinder of the locking mechanism 10 and to the cylinder 28, the locking mechanism closes and the speed decreases.

When objects reach the machine, switch 12 is triggered, valve 33 switches to position e, double loading double reverse clan 30. When switching switch 11 closes, both contacts of relay 25 and magnetic valve 32 switches to position e, the locking mechanism 10 opens, and the speed is increased by the previously installed one using the arrangement 26. If the switch 11 departs due to the disassembly of the accumulation, then the locking mechanism 10 remains open, since the relay 25 is turned on. However, the magnetic valve 33 is switched to position c by means of a switch 11 provided with a reverser, while the speed is reduced.

In this way, it is possible to accumulate objects at a lower machine speed and open shut-off mechanism. When the switch is triggered again, the speed increases again.

In the embodiment (Fig. 4), the labeling machine near the closing mechanism for bottles has four switches 35-38 at the inlet, of which l: va are located on the collector 6 and two on the conveyor 7, and the switch 39 at the exit.

Near the auger conveyor 8, there are three label switches 40 with pneumatic valves that control the removal of labels from three containers 41, for which each valve is connected to a double-acting cylinder 42, which includes the removal mechanism for removing the label (not shown) by removing it actuation of the valve of the corresponding container 41.

The switch 40 (Fig. 6) is equipped with a pneumatic cylinder 43 and a shaft 44 with a cam, with which they are adjusted for continuous or single actuation. When cylinder 43 is under pressure, the switches are released and are in the path of the moving bottles, triggered by each bottle individually. When relieving pressure, the containers 41 are released for removal.

The four-way cylinder 45 (Fig. 5) serves to control the speed through the regulator 3 (Fig. 2), located on the side of the drive motor, therefore, in addition to the minimum and maximum speeds, the machine can operate with two intermediate speeds during automatic operation. For setting the type of work serves as a valve 14 with manual control (Fig. 5), while

speed is controlled by device 26.

PILINDR 43 is pressurized by means of a pipeline and a pneumatic valve 46 installed in the r position, and the label switches are released and can be triggered alternately. Due to the switches 40, the cylinders 42 release or close the containers 41 depending on the position of the respective valves, while the operation of the switches 35-

39 does not cause any action, since the respective pipelines are not under pressure.

In position a of valve 14, compressed air acts on the cylinder of the locking mechanism 10 through a double check valve 47, closing the valve.

At the position in the cylinder, the locking mechanism 10 loads and closes the shutter, since the switches 35-39 do not operate with the help of the magnetic valve 48 installed in the r position and the double non-return valve 47. At the same time, the valve 50 is activated using section 49 of the control system connected to the four-way cylinder 45, are not under pressure. The control system section 51 is under pressure and is interrupted by the solenoid valve 52 in position g of the latter. In this case, the switches 53 are closed, the valve 46 is in the position r, the cylinder 43 is pressurized, and the label switches

40 is released.

The locking mechanism 10 is opened only when all four switches 35-38 of the in-car input are activated during the accumulation of bottles and the relays 54-57 are attracted. The latter causes the closure of the switches 58-61 in the pipeline to the relay 62, as a result of which the switches 53 operate. The magnetic valve 48 switches to position e, both pistons of the cylinder 45 move forward and the highest speed is established.

Due to the operation of the switches 53, the magnetic valve 52 is simultaneously switched to the position r so that the valve 46 is set to the position d by the control system section 51.

The cylinder 43 is then pressurized with the aid of a second pneumatic valve 63 and valve 46. Label switches 40 are free with the shut-off mechanism 10 open.

When a label switch 40 located after position I of the labeling is triggered, the valve 63 is switched to the e position via the control system section 64, and the cylinder 43 is unloaded through the valve 46 and 63. Thus, all the label switches are de-activated and triggered. When the switches 35-38 are discharged one by one or all together due to the resorption of the accumulation of bottles, the laphor mechanism 10 is open, as the switches 58-61 in the LINE to the relay 62 overlap with the help of the switch 53, while different speeds are set. If the accumulation switch 38 and the relay 57 are closed, the machine acquires a lower speed, since the magbit bit valves 65 and 66 are in the z position and both pistons of the cylinder 45 are pushed in. With the additional actuation of the switches 37, the circuit of the magnetic valve 65 closes, and the piston of the small cylinder 67 extends, and the car is told a low intermediate speed. When the switch 36 is further activated, the circuit of the magnetic valve 65 is interrupted by the switch 59. and the circuit of the magnetic valve 66 is closed. The piston of the small cylinder 67 is pushed in, and the large cylinder 68 is advanced, with the result that the machine acquires a greater intermediate speed. The additional actuation of the switch 35 causes the circuit of the magnetic valve 64 to close, so that the piston of the cylinder 67 extends and sets the maximum speed. If the accumulation switches again go out, then the speed drops accordingly.

If switch 38 departs, the machine operates at minimum speed, and the locking mechanism 10 is closed using the switch of the magnetic valve 48. At the same time, the circuit of the magnetic valve 52 closes and the valve 46 moves to the r position due to interruption of the control system section 51. The cylinder 43 is loaded through the valve 46, as a result, the sensitive links are released, and the labels are fed singly.

If the switch 39 is activated when the shut-off mechanism 10 is open due to an increase in the accumulation of bottles at the machine's output, the current in the control circuit of the magnetic valves is interrupted by reversing the switch 39. The locking mechanism 10 blocks the way the bottles and the minimum speed is set. At the same time, the circuit of the magnetic valve 52 is closed, the cylinder 43 is loaded, and the sensitive links of the switches 40 are released.

At the output of the machine, if necessary, additional accumulation switches are also installed for speed reduction regardless of the accumulation switches at the input and closing of the locking mechanism only when the accumulation switches act behind the machine.

It is also possible in the first and second embodiments to use a locking mechanism that blocks the way that the bottles already open when the switches 37 and 38 are triggered, and the switches 35 and 36 in this case serve only to regulate the speed. It is also possible to place the switches 35 and 36 on the conveyor 7.

Subject invention

A machine for labeling objects, such as bottles, which includes a conveyor for moving objects in a vertical position, a screw conveyor for transferring objects with a certain step to the labeling area, a drive motor with a speed controller, a locking mechanism with one of the probes installed at the machine inlet and outlet, made in the form of a back pressure switch, and a system of simultaneous control of the speed regulator and the locking mechanism, which, in order to improve the automatic controlling the performance of the machine and reduce the number of operations of the locking mechanism, it is provided with additional switches backwater example three upstream of the probe of objects on a machine designed for the input and stepwise controlling the speed regulator. r / 1Д iV -J, p1 / I iVTnfiTDifeiJtoiuEriTiA j. shchshshsh} „. one; .., VBft -1 (rig. / B

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