HU211123B - Medium pressure casting machine of element-system for making ceramic goods - Google Patents

Abstract

Elementary, medium-pressure casting equipment for ceramics but also a refractory tile burner four molded molds form, the molds are horizontal, wherein the four main parts, the lower part (1), a upper mold part (2), side mold parts (6) with wagons (3; 7) are movable, the top the mold parts (2) can be moved vertically vertically are placed, the main parts (1; 2; 6) Horizontal clamping hydraulic working cylinder (5), hydraulic cylinder (5) the lower-upper form part trolleys (3) and the side mold as a working cylinder for moving wagons (7) is formed on the side of the lower-upper form part wagons (3) there are adjustable hangers and the side mold the carriages (7) have cross arms below which There are hangers working with hangers, the top (8) mounted on lifting parts (2) vertical there are adjustable compass lifting pins (9) and the upper mold part can be changed to lift beams (10) in position - cooperating with the compass lever (9) -Anchor-lifting nests (11) are attached.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a modular medium pressure die-casting machine for producing ceramic articles, in particular for producing refractory tile firing cases having four main mold parts, horizontal molds having four main mold parts, lower mold part, upper mold part, and lateral mold part. formed, the upper mold parts are arranged in a vertically movable array, having a hydraulic cylinder for clamping the main mold parts in a horizontal array.

Known patents contain similar sub-solutions, principles, although they describe almost exclusively the production tools (machines, molds) that make sanitary ware.

U.S. Pat. No. 4,374,635 protects a particular mold design whereby the toilet flush tank and its lid can be simultaneously molded in superimposed molds and the toilet bowl and its flush ring can be cast in the same way. The mold design described herein does not include a lower mold half and therefore, e.g. The U-shaped tile burner case cannot be cast. But for the same reason, you can only make a toilet bowl without a siphon (waterproof), which no longer meets the demands of the modem era. The description also outlines the production equipment, in which the mold halves can be moved on wagons, but it is not possible to automatically and individually remove the articles from the molds when they are formed. This greatly increases the overtime. The casting mass is fed from a high-pressure vessel by gravity, ie not at medium pressure. For these reasons, its productivity is much lower than that of the present medium pressure equipment.

DE (OS) 3,740,163 clearly discloses a device for casting sanitary ceramic articles, in particular toilet bowls. The structure is suitable for casting under pressure, the side molds are moved on a support structure by means of a gear rack mechanism, the bottom molds can be raised / lowered, the mold halves are locked together after being closed and the clamping force is provided by hydraulic cylinders. However, only one product can be made at a time. This fact has a major impact on productivity, as groceries are added to the production time of a product. Due to the locking principle (one pin is inserted into the holes of two interconnecting forks), the mounting dimensions of the cast products may vary slightly.

Exceeding the patents described above, the present invention is applicable to the manufacture of a wide variety of ceramic articles (both size and shape), wherein the number of main moldings is not more than four. The number of molds that can be cast on the machine at one time is limited only by the load-bearing capacity of the upper mold lifting device. The machine mechanically disassembles and closes all shapes at the same time, and a single word can be used to extract the products. By locking the mold halves with connecting rods, it resolves the forces acting on the supporting structures to achieve medium pressure casting with smaller structural dimensions. The equipment allows the shape and shape of the product to be optimized. It is also insensitive to the size of the products, as the design of the structural elements has a high degree of adjustment.

Since casting of refractory materials by known manufacturers (BURTON, Refiral, etc.) is carried out using conventional gravity-based methods and individual compression and movement of molds, the elementary medium pressure die-casting equipment plays a pioneering role in the production of refractory ceramics.

The present invention, while maintaining the benefits of conventional casting, significantly increases productivity, reduces space requirements, improves the quality of manufactured products, and completely eliminates the physical work involved in moving mold parts.

The invention makes it possible to completely eliminate manual and individual movement of the molds, thereby reducing the time between castings to a fraction and minimizing the loss of molds.

The casting of the molding compound is automated, the molding is done at medium pressure. As a result, the products take a short time to form, and the resulting products outperform conventional cast products in terms of dimensional accuracy, deformation and strength. The invention does not require any special plasterform quality, but also allows for multiple enema increments. The elementary medium pressure die-casting apparatus of the present invention is generally intended for the production of ceramic articles, in particular for the production of refractory tile firing housings, under pressure injection molds having a horizontal series of molds having four main moldings, a lower molded part, an upper molded part, molded parts are movable by carriages, the upper molded parts are arranged vertically movable in groups, a hydraulic cylinder for clamping the main moldings in a horizontal group and the device is configured such that the hydraulic cylinder is movable between the lower and upper mold carriages; designed as a working cylinder, the lower and upper form carriages have adjustable hooks on the side and the side form carriages have cross members, under which There are stops that work with the hooks, there are vertical guide-lift pins in the lifting lugs mounted on the upper mold sections, and adjustable-lifting slots, which work in conjunction with the guide lift pins, are connected to the upper mold lifting beams.

A preferred embodiment of the above-mentioned molding apparatus is such that the upper moldings are connected to the lifting beams and the lower and upper moldings of the carriages by means of connecting rods through the upper linking shafts and the carriage connecting shafts before the vertical molding.

Figure 1: Side view of the equipment

Figure 2: Cross-section of the equipment

Figure 3: Partial view of wagons

Figure 1 shows the lower mold portions 1 and 2

The upper mold parts which move horizontally by the hydraulic cylinder 5 on the undercarriage 4 on the undercarriage 3 are likewise moved by the hydraulic cylinder 5 on the side mold carriages 7. Vertical movement of the upper mold parts 2 is effected through the guide-lifting pins 9 fixed in the lifting lugs 8 mounted on them, so that they are seated in the guide-lifting sockets 11 fastened to the upper mold lifting beams 10 and the lifting chain 12 can be lowered. The location of the crude product 22 is also shown.

Figure 2 shows the tie rods 13 connecting the lower mold parts 1 and the upper mold parts 2 through the upper tie axles 14 and the carriage connecting axles 15 and the pneumatic hoses 21 which create the vertical clamping.

Fig. 3 shows a hook 16 mounted on the side of the lower formwork trolley 3 which engages in a stop 17 which is disposed on the lower part of the transverse support 18 of the lateral formwork trolley during pulling of the lower formwork trolley 3 and the lateral formwork trolley 7. .

The operation of the casting apparatus can be divided into two distinct parts for moving the molds horizontally and vertically. The horizontal movement is performed by the hydraulic cylinder 5 which is connected to the side-shaped wagons 7 nearest to it. In forming, the hydraulic cylinder 5 pulls the side carriage 7 and, after a certain distance, the stop 17 secured under the transverse support 18 of the car, engages in the hanger 16 fixed to the carriage side of the lower and upper mold part 3 and continues until all the lateral moves a predetermined distance from the lower and upper mold portions 3. In the form closure, the hydraulic cylinder 5 pushes the closest side mold carriage 7 and the lateral mold part 6 on it collides with the subsequent 1; 2 and so push it forward, it continues until the shapes on the machine are closed horizontally. The vertical movement is effected by means of the lifting chains 12. Only the upper mold parts 2 are to be moved vertically and only the lower and upper mold carriages 3 and the side mold carriages 7 are possible in the extended position. The guide pins 9 in the lifting tabs 8 mounted in the upper mold part 2 are then positioned just above the guide lift jacks 11 connected to the upper mold part lifting beams 10 and, when raised, allow the upper mold members 2 to move vertically to prevent lateral movement. Assuming that the molds are in the unfolded state prior to casting, the first step is to allow the upper mold parts 2 in the raised position on the lower mold parts 1 on the lower and upper mold carriages 3, at which point the guide lifting sockets 11 from the pins that the compass-lifting pins 9 move over the compass-lifting pins 11 when the mold parts are closed horizontally. By turning the hydraulic cylinder 5, the mold parts are closed in a horizontal direction. The lower and upper form carriages 3 are then connected to the upper form part lifting beams by hooking the tie rods 13. Thereafter, a vertical clamping is performed with the pneumatic hoses 21 located below the upper beams of the upper mold part 10. The casting sludge is supplied from the pipeline with a lower form feed. Mass pressure is provided by a pressure vessel, pump or cylinder. When the form is disassembled, the vertical clamping is first eliminated, and then the lashings 13 are unhooked. Subsequently, by reversing the hydraulic cylinder 5, the lateral mold parts 6 are removed from the lower mold parts 1 and the upper mold parts 2 in a predetermined amount as described above. In the next step, the upper mold sections 2 are lifted. The crude product 22 remains on the upper mold portion 2 and can be removed after removal.

Claims (2)

1. Modular medium-pressure die-casting apparatus for producing ceramic articles, in particular for manufacturing refractory tile firing housings, the mold of which comprises four main molds, the molds being of a horizontal series having the four main molds, the lower mold (1), the upper mold (2), the lateral mold parts (6) being movably formed by carriages (3; 7), the upper mold parts (2) being arranged vertically movable in groups, having a hydraulic cylinder (5) for clamping the main mold parts (1; 2; 6) in a horizontal direction; characterized in that the hydraulic cylinder (5) is designed as a working cylinder for moving the lower and upper mold carriages (3) and the side mold carriages (7), there are adjustable hooks (16) on the side of the lower and upper mold carriages (3) and the side-shaped wagons (7) have cross members (18) under which the hooks (16) cooperate the stops (17) are provided, the lifting lugs (8) mounted on the upper form parts (2) have vertically adjustable lifting pins (9) and for the lifting beams (10), which are adjustable vertically, cooperating with the lifting pins (9) compass lifting nests (11) are connected. Casting device according to Claim 1, characterized in that the upper mold part for the lifting beams (10) and the lower and upper mold part trolleys (3) - for connecting before the vertical molding - on the upper tie axles (14) and the car tie axles (15). via connecting rods (13).