RO105924B1 - Formation (moulding) and thermal insulation of fridge housing - Google Patents

Abstract

Device for training and isolation The thermal refrigeration carcass consists of a support frame (2), made of U-profile, laminated, provided with hinges composed of short axles (8), some eyelets (9) welded with pleats, adjustable as position by some path (10), from some lateral walls mobiles (3,4,5,6), with some upper pads (13) mounted in the cover (7), and some pads (14) mounted on the side walls, and in the joints areas, with some bronze bushings (12) which are inserted into some steel bushings (11) pressed in the joints of the joints.

Description

The invention relates to a training device for refrigerator housings.

It is known a type of formation device composed of a support frame of which are articulated four movable walls and a lid, actuated by means of penultimate cylinders. On the frame is mounted a cupboard core, having a profile corresponding to the interior of the cabinets. The device has the role of maintaining the shape and dimensions of the refrigerator cabinets during the injection of the insulating foam between the cabinet housing and the tub until the polyurethane foam maturation is completed.

The support frame is made of U-shaped bent sheet and reinforced by numerous reinforcing ribs. The ears of the joint are welded to the frame, and by means of long axes the connection with the movable walls is made. The side walls and the lid are made of shiny aluminum and in the area of the joints, at their contact with the axes of the joints, bronze bushes are introduced which are welding elements. When these bushings are disassembled and repeatedly installed, there are oval joints of the joints that lead in time to joints. Due to the shockproof inclusion of the lid on the side walls, prints, deformations, cracks and even material breaks appear in the contact area.

This device of thermal formation and insulation presents as a disadvantage a complicated constructive solution, entailing a difficult assembly and adjustment of the position of the movable walls.

The forming device according to the invention removes said disadvantages, by which it solves the problem of constructive simplification by using a laminated U-profile which gives it greater rigidity, eliminating the strengthening nerves Je.

The ears from the joints are no longer directly welded by the support frame but are mounted on separate plates, provided with channels for crossing the clamping screws, which allows the vertical adjustment of the walls of the device, between these plates and the support frame are interposed adjustable, which allow the precise dimensioning of the interior dimensions of the device. The long axes of the joints were replaced with individual short axes for each joint. In the area of the mesh from the joints of the movable walls are inserted steel bushes inside which there are bronze bushes, which are elements of wear and which are replaced periodically. The steel bushes remain fixed in the joints of the walls, have the role of facilitating the change of the bronze bushes and to avoid the ovalization and deterioration of the joints of the aluminum walls. In the area of contact between the lid and the side walls, upper and lower pads of hardened steel were inserted, which eliminates the possibility of printing, cracks or breaks of material in this area.

By applying the invention, the constructive simplification, the improvement of the assembly and adjustment possibilities and the increase of the product reliability are obtained as an advantage.

The following is an example of embodiment of the invention, in connection with FIGS. 2 and 2, which represents:

FIG. 1 is a front view of the device for forming and thermal insulation of the refrigerator housings;

- Fig. 2, side view of the device for forming and thermal insulation of the refrigerator housings.

The device according to the invention is made up of a conveyor 1 on which the support frame 2 is attached. From the support frame 2 there are hinged mo105924 balls: front wall 3, rear wall 4, left side wall 5, right side wall 6 and through the rear wall the lid is also articulated. 7. The articulation of the walls of the support frame is made by the articulation axes 8 and the ears 9 of the frame 2, the ears provided with passage channels for the retaining screws. Between the ears of the frame and the frame are introduced adjustment path 10. 10 in the hinges of the movable walls are inserted steel bushes 11 containing bronze bushes 12. In the contact area between the cover 7 and the side walls are inserted buffer pads 15 streams 13 in the lid and lower pads 14 in the side walls. The movable walls are actuated by means of the pneumatic cylinders 15 and the closure of the lid is executed manually through the locks 16. Inside the device, the core 18 is inserted into the housing of the casing 18 caught in the housing of the refrigerator cabinet 19, between which the polyurethane foam 20 is injected.

Claims (1)

Device for forming and thermal insulation of refrigerator housings, characterized by the fact that it is composed of a support frame (2) made of laminated U-profile provided with joints composed of short axes (8), ears (9) welded by adjustable plates as position by means of tracks (10), from movable side walls (3, 4, 5 and 6) provided with upper pads (13) mounted in the lid (7) and lower pads (14) mounted on the side walls, and in the areas of their joints20 with bronchial bushes (12) which are inserted into steel bushes (11) pressed into the joints.