SU142323A1 - Thermal through furnace - Google Patents

Description

Thermal feedthrough furnaces are known with a pusher and a conveyor for returning unloaded pallets from quenched parts, the use of which requires large production areas that are not efficiently used.

A feature of the invented thermal furnace is TOM that, in order to save production space and use more complete automation of heat treatment of cast parts, the furnace conveyor with hooks for returning pallets freed from hardened parts is located above the furnace and placed in an arcuate frame, the ends of which mounted above the loading and unloading door of the furnace. The pallets, for the purpose of conveniently grasping them with the hook of the conveyor, are made with protrusions made in the form of pins.

The drawing shows a longitudinal section of the furnace and conveyor, General view.

The main components of the furnace described are: pusher 1, quenching furnace 2, pusher 3, conveyor 4 for returning pallets, door 5 of the charging window of furnace 2, pallets 6, hopper 7 through which the quenched parts enter the quenching tank, pneumatic cylinder 8 ejector 3 , electromagnetic starter 9, automatically; -, leash 10, suspension / / conveyor hook, guide levers 12 and counterweight 13.

The operation of the described part is that when the door 5 is lifted from the time relay pulse, the pusher head / enters the pallet loaded with parts into the interior of oven 2. The introduction of the subsequent pallet moves the pallets located in the oven forward by one pallet. After that, the pusher head returns to its original position, and the oven door closes automatically. As a result of pushing the chain of pallets, the front of them will turn on the bin with the bunker 7

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za1, greedy..rak. Then, the pallet is tilted and the heated parts fall through the bunker tank, and the released pan will drop the sides of the furnace on their beams to the bottom of the furnace. Further transfer of the overturned pallets is carried out by a pusher, which is driven by the pneumatic cylinder 8. Komaidu is a gun; a switch that gives the cylinder 8 is given a switch that pushes the head through the actuator 9. Then the front overturned pan is placed in a certain place which is fixed by the lead W. When the front tilted pallet is pressed onto the lead 10, the switch K is closed, and the suspension lowering // with its hook picks up the pallet and moves it further to EPX above the oven. The hooked pallet is conveyed to the table by a conveyor. On the conveyor hangers above the furnace, 3-4 pallets are all the time. When the pusher head returns to its original position from above, along the guides of the conveyor hanger, the next pallet is lowered onto the digging levers 12 - which, together with counterweight 13, contribute to the correct installation of the pallet on the pusher table. Then the cycle is repeated.

Subject invention

Claims (2)

1. Heritage plow furnace with a pusher and a conveyor for returning pallets, characterized in that, in order to save production space, a conveyor with hooks for returning pallets is located above the furnace and is enclosed in an arcuate frame, the ends of which are located above the furnace doors. 2.Turn-through oven according to claim 1, characterized in that. that the pallets are provided with protrusions to be gripped by the hooks of the conveyor after the parts have been poured into the firing tank