SU1445918A2 - Intermachine accumulator of automatic production line - Google Patents

Abstract

The invention relates to a machine tool industry, namely, to stepper conveyor accumulators which can be used as initial, intermediate or final accumulators of processed products on automatic lines. The purpose of the invention is to improve the reliability of the inter-storage drive. For this purpose, the lifts 8 are additionally equipped with sensors 24, 25, 26 of the product in the upper position and electromagnets for lowering the lifts at each position, and the corresponding contacts and relays are introduced into the control unit to ensure the functioning of these sensors and electromagnets during the accumulator operation cycle. 6 Il.

Description

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The invention relates to a machine tool industry, namely, to step-by-step storage conveyors, which can be used as initial, intermediate or final drives of processed products on automatic lines, and is an improvement of the invention according to the authors. St. No. 1066781.

The aim of the invention is to improve the reliability of the drive by monitoring the availability of products on the lifts in their upper position.

On fng. 1 schematically shows the proposed inter-storage drive, in the initial position; in fig. 2-5 - the same, in consecutive cycles of the work of PS to mixing products; in fig. 6 is an electrical diagram of the accumulator for the last three positions of p-2, p-1 and p.

The drive contains a transport rod 1 with prisms 2 for stacking products 3, levers 4, sensors 5 and 6 of the presence of products on the prisms of the rod of positions p-2, p-1 preceding the latter, sensor 7 of the presence of products at the last position along the transport of products, lifts 8, the lower position sensors 9-11 and the upper position sensors 2-14 at the positions respectively p-2, p-I., P, sensor 15 of the initial position of the transport rod with closing contact 15.1, lift electromagnets 16-18 (FIG. 6) respectively, the positions p-2, p-1, p, electro Agnita 19 drive the transport rod. The control unit contains closing contacts 5.1 and 6.1, respectively, of sensors 5 and 6 of the presence of the product on prisms 2, shorting 7.1, 7.3, 7.4 and disconnecting 7.2 contacts of the sensor 7 of the presence of the product in the lower position of the elevator position n, closing contacts 9.1, 10.1, 11.1, sensors 9 - And the lower position and the closing contacts 12.1, 13.1, 14.1 of the sensors 12-14 of the upper position of the lifts 8. In addition, the block contains the relay 20 turning on all the electromagnets of the lifts 8 with closing contacts 20.1, 20.2, individual relays 21 and 22 turning on each lift solenoid 8, respectively, positions p-2, p-1 with the closing 21.1, 21.4, 22.1, 22.4, 22.5, opening 21.2, 22.2 and switching 21.3 and 22.3 contacts of the relay 23 coinciding with the closing contact 23.1, as well as for the sensors 24-26 the upper position of the lifts make contacts 24.1, 25.1, 26.1, 26.2, 26.3, respectively, at positions n-2, n-1, p. The storage device is equipped with electromagnets 27-29 for lowering the lifts, respectively, positions n-1, p-1, p.

The drive works as follows.

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In the initial position, the rod I is in the leftmost position and the sensor 15 of the initial position of the transport bar is turned on, which causes the contact 15.1 to close in the circuit of the windings of the relay 20-22 vk / hum of each elevator electromagnet. Lifts 8 of all positions are downstairs. The bottom position sensors 9-11 are turned on, causing the contacts 9.1, 10.1, 11.1 to close in the winding circuit of the relay 23 to coincide.

For the initial position in terms of the availability of products, such is selected when position n-1 is free, and at positions n-2 and n there are products 3. At the same time, at position n-2, product 3 presses lever 4, turning it around the axis and turning off The sensor 5 is the presence of the product 3 on the prism of the transport rod, which causes the opening of the contact 5.1 in the circuit of the winding of the relay 21 turning on the lift position n-2. The absence of product 3 at position n-1 causes lowering under its weight lever 4, which turns on sensor 6 for the presence of product 3 on the prisms of the transport rod, which causes contact 6.1 in the coil circuit of the relay 22 for turning on position p-1. At the end position, the product 3 turns off the product presence sensor 7 on the lift 8, which causes opening of contact 7-1 in the winding circuit of the relay 22 turning on the lift of position n-1, contact 7.3 in the winding circuit of the relay 23 coincidence, contact 7.4 in the winding circuit of the electromagnet 29 lowering the position lifter and closing contact 7.2 in the electromagnet 18 circuit of lifting the position lifter. Sensors 24-26 of the presence of products in the upper position of the lifts are turned on, which causes the contact 24.1 to close in the winding circuit of the relay 21 of the lift position n-2, contacts 25.1 and 26.1 in the winding circuit of the relay 22 turning on the elevator of position n-1, contact 26.2 in the winding circuit of the electromagnet 29 lowering the elevator of position n and pin 26.3 in the winding circuit of the relay 23 coincidence.

As a result, along the circuit created by contacts 15.1, 6.1, 25.1, the winding of the individual lift-up electromagnet 22 turning on the elevator of position n-1 is energized, the relay by the closing contact 22.1 becomes self-powered, and the closing contact 22.4 excites the winding of the hoist lift of the position n-2 elevator electromagnet and the opening contact 22.2 breaks the circuit of the electromagnet 17 for lifting the elevator of position n-1. The opening contact 21.2 of the relay 21 breaks the circuit of the electromagnet 16 lifting the elevator position n-2. When the relay 20 is turned on all the electromagnets of the lifts are turned on, contact 20.1 closes. In this case, a chain created by contacts 20.1, 7.2 occurs

the inclusion of the electromagnet 18 lifting lift position n, which leads to the lifting of the lift. In the upper position of the elevator position, the sensor 14 of the upper position of the elevator is turned on and the sensor 26 for the presence of the product is turned off. This causes the closure of the contact 14.1 in the coil circuit of the relay of coincidence and the opening of the contact 26.1 in the coil circuit of the relay 22 turning on the elevator of position n-1, contact 26.2 in the coil circuit

Branchically, p-1 and p-2 are included. In this case, contacts 22.5 and 21.4 are closed in the chains of the lowering magnets of the elevators of the n-1 and p-2 positions. This causes the elevator to lower to position n-2. Due to the presence of the product in position n in the upper position of the lift, the sensor 26 is turned off, its contact 26.2 is open. In this case, the electromagnet 29 for lowering the elevator of position n does not turn on and the product remains in the upper semi-electromagnet 29 for lowering the elevator.

The positions of n and pin 26.3 in the winding circuit are re-thus, after the return of trans20

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A circuit created by the contacts 14.1, 22.3, 10.1, 9.1 and further by the contacts of the sensors of the lower position of the lifts of all the previous 15 positions causes the winding of the coinciding relay 23. This closes the contact 23.1, which leads to the inclusion of the rod actuator electromagnet 19, which causes the movement of the rod 1 and, accordingly, the transfer of all products one step to the positions preceding the free position p-1.

Thus, the free position is filled (Fig. 3). Subsequently, the lifts 8 of all positions in which the products 3 are located are raised. In the upper position of the elevators of the positions p-1 and p-2, the products availability sensors 25 and 24 are released and the sensors 12 and 13 of the upper positions of the elevators are turned on. In this case, contact 25.1 is opened in the winding circuit of the relay 22 for switching on the elevator of position n-1 and contact 24.1 in the winding circuit of the relay 21 for switching on the elevator of position n-2.

After the transport rod comes to its initial position, the sensor 15 is turned on, contact 15.1 is closed, which causes the relay 20 to turn on all the electromagnets of the lifts. This closes the contacts 20.1 and 20.2. The relays 22 and 21, which disconnected the closing contact 15.1 of the sensor 15 of the initial position of the shtang during their forward movement, after returning the shtang to the initial position and closing again of the contact 15.1 do not turn on. As a result, contacts 22.5 and 21.4 are open. Turning on

the sport bar in the initial position is the lowering of all lifts with products that are located before the last one in the course of moving the empty position of the product.

All lifts with products after the specified empty position remain in the upper position, creating the condition that 1 moves under the products of the transport bar during the next cycles associated with the accumulation of products on the drive.

Claims (2)

Invention Formula thirty Interstitial storage of an automatic line on aut. St. No. 1066781, characterized in that, in order to increase its reliability, each lift is additionally equipped with a product presence sensor in the upper position of the lifts and a lowering electromagnet at each position, and in the control unit additional closing contacts of the sensors of the availability of products in the upper position of the lifts, relay contacts switching on each electric magnet of the lift; j5; contacts of the general relay for switching on all electromagnets of the lifts, with the closing contacts of the sensors for the presence of products in the upper position at pullers in the winding circuit of individual relays for switching on each lift electromagnet are connected in series with the closing contacts of the sensors for the presence of products in the lower position of the lifts, and the closing contact of the sensor for the products in the upper position at pos40 The electromagnets 27-29 lower the lift-45 of the lowest position in the coil circuit of the coincidence relay coil does not occur and the lifts remain in the upper position. Before moving forward the transport bar at position o-2, the product is absent, and after moving the transport bar, the product arrives at position p-2. To enable the boom to return to its original position, the elevator of position n-2 with the product rises to the upper position. After the return of the rod to its original position, a situation arises, similar to that described when the relays 22 and 21 turn on the hoist electromagnets at the positions corresponding to 5918 four Branchically, p-1 and p-2 are included. In this case, contacts 22.5 and 21.4 are closed in the chains of the lowering magnets of the elevators of the n-1 and p-2 positions. This causes the lift to lower to the position n. 2. Due to the presence of the product in position n in the upper position of the lift, the sensor 26 is turned off, its contact 26.2 is open. In this case, the electromagnet 29 for lowering the elevator of position n does not turn on and the product remains in the upper polo. the sport bar in the initial position is the lowering of all lifts with products that are located before the last one in the course of moving the empty position of the product. All lifts with products after the specified empty position remain in the upper position, creating the condition that 1 moves under the products of the transport bar during the next cycles associated with the accumulation of products on the drive. Invention Formula Interstitial storage of an automatic line on aut. St. No. 1066781, characterized in that, in order to increase its reliability, each lift is additionally equipped with a product presence sensor in the upper position of the lifts and a lowering electromagnet at each position, and in the control unit additional closing contacts of the sensors of the availability of products in the upper position of the lifts, relay contacts are added switching on each lift electromagnet, general relay contacts turning on all lift electromagnets, with closing contacts. sensors for the presence of products with the upper position The windings in the winding circuit of the individual relays for switching on each lift electromagnet are connected in series with the closing contacts of the sensors for the presence of products in the lower position of the lifts, and the closing contact of the sensor for the products in the upper position on the end This is sequentially connected to the closing contact of the sensor of the product in the lower position of the same position, the closing contact of the relay for all lift electromagnets in the circuit for switching on all electromagnets for lowering the lifts is sequentially connected to the closing contact for the relay for electromagnet of the lift for all positions except the next one, and - with successively connected closing, contacts of sensors for the presence of products in the upper and lower positions for the last position. V-. V. -W GUU -5 7 ( /../ Vn / .7 eight 9 In (Pue.2 25  r four H / v t / j if P i2 In 5 V f a / j ) n / i7 Fiz. pg / V- / ns n / fie.   F (e. 4 v5 n / .7 ) D / un a / j 7 ) n / i7 A Ujn / y P// ° //