An extrusion press

Abstract

The invention relates to an extrusion press comprising an extrusion die cassette (12) comprising a die ring (18) pressing from its upper part in a form that prevents the die (20) from moving during the extrusion process, and an extrusion die cassette (12) comprising a plurality of heating elements (24) for providing heating in a circular guide line (16) provided in an internal structure (14) in which the die ring (18) is located.

Description

[0001] AN EXTRUSION PRESS

[0002] Technical Field

[0003] The invention relates to an extrusion press cassette comprising a seal pressing from its upper part in a form which prevents the die from moving during the extrusion process.

[0004] Prior Art

[0005] In the literature, the die and equipment are heated once in the extrusion process. When a billet extrusion is completed, the production is continued by including the new heated billet into the system. As the billet passes through the die, the temperature of the die is kept constant with the help of the heat generated by the friction force. The most important parameter in the extrusion process is temperature. Billet, profile, die, containerand dummy block temperatures are constantly controlled and kept constant during the production phase. If they are not kept constant, it is difficult to produce the desired quality product.

[0006] In the technical field, solutions are known which are used during the extrusion process to heat the die so that it remains constant at a predetermined temperature. Accordingly, the invention numbered TR2019 / 18852 relates to a seal comprising a heating element. The invention discloses a seal comprising a heating element, which is used during the extrusion process, to heat the die through which the alloyed and / or unalloyed billet passes and from which the profile emerges, and to keep it constant at a predetermined temperature. A solution is provided herein in which heating is provided in the extrusion process. However, there is no extrusion die cassette including heating elements. Furthermore, there is no solution whereby the prevention of die cooling can be provided regularly from the inside of the die cassette.

[0007] As a result, all the above-mentioned problems have made it necessary to make an innovation in the relevant technical field.

[0008] Objectives of the Invention

[0009] The present invention relates to an extrusion press cassette for eliminating the above- mentioned disadvantages and bringing new advantages to the relevant technical field. One object of the invention relates to an extrusion die cassette comprising a heating element for preventing die cooling due to the low extrusion speed of difficult-to-extrude alloys and complex-shaped profiles.

[0010] A further object of the invention relates to an extrusion die cassette comprising a heating element, which ensures that the die and its support elements, namely the die support - bolster, backer and cover are kept warm.

[0011] Brief Description of the Invention

[0012] In order to fulfil all the aforementioned objects and those which will arise from the following detailed description, the present invention is an extrusion press comprising a seal pressing from its upper part in a form which prevents the die from moving during the extrusion process. Accordingly, the novelty of the present invention is that it comprises at least one extrusion die cassette in which the seal is provided and in which a plurality of heating elements are provided to provide heating in a circular guide line provided in an internal structure. Thus, it is ensured to prevent die cooling due to low extrusion speed of difficult- to-extrude alloys and complex- shaped profiles.

[0013] A possible embodiment of the invention is characterized in that it comprises an electrical connection apparatus located in a lower part of said extrusion die cassette, which is electrically connected to the heating elements in said extrusion die cassette in such a way as to increase the speed of an electrical transmission line from a network. Thus, a structure is provided which increases the speed of the external electrical connection with the heating element.

[0014] A possible embodiment of the invention is characterized in that it comprises an electricity transmission interconnector electrically connected to the electrical connection apparatus and located in the lower part of the die cassette. In this way, the electrical conduction is transmitted to the electrical connection apparatus as an intermediate part to which the heating element and the electrical connection from the external line (mains) are connected, and energy flow for heating is provided.

[0015] A possible embodiment of the invention is characterized in that it comprises an electrical connection apparatus outer cover in the form of a muffle, which is provided in such a way that it can be inserted and removed from the front part of said electrical connection apparatus. Thus, a structure for protecting the electrical connection line in the heated cassette is provided.

[0016] A possible embodiment of the invention is characterized in that it comprises a three-phase first electrical conductor, a second electrical conductor and a third electrical conductor for electrical transmission to the heating elements in the guide line. Thus, the electrical transmission for providing heating to the heating elements is carried out via these transmission elements.

[0017] A possible embodiment of the invention is characterized in that it comprises a protective cover provided in a form to cover the outer part of said electrical conduction elements. Thus, a structure is provided for protecting the heating elements from the external environment.

[0018] Brief Description of the Figures

[0019] Figure 1 shows a top perspective view of an extrusion press according to the invention.

[0020] Figure 2 shows a front perspective view of an extrusion die cassette for an extrusion press of the invention.

[0021] Figure 3 shows a side perspective view of an extrusion die cassette for an extrusion press according to the invention.

[0022] Figure 4 shows a representation of the assembly elements of an extrusion die cassette for an extrusion press.

[0023] Figure 5 is a continuation of the illustration of the assembly elements of an extrusion die cassette for an extrusion press.

[0024] Detailed Description of the Invention

[0025] In this detailed description, an extrusion press according to the invention is described only by means of non-limiting examples for a better understanding of the subject matter.

[0026] Figure 1 shows a top perspective view of an extrusion press according to the invention, Figure 2 shows a front perspective view of an extrusion die cassette for an extrusion press according to the invention, Figure 3 shows a side perspective view of an extrusion die cassette for an extrusion press according to the invention, Figure 4 and Figure 5 show the assembly elements of an extrusion die cassette for an extrusion press, and Figure 5 shows the assembly elements of an extrusion die cassette for an extrusion press. An extrusion press (10) comprises a diering (18) pressing from its upper part in a form which prevents the die ring (20) from moving during the extrusion process. The inventive extrusion press (10) shown in Figure 1 comprises at least one extrusion die cassette (12) shown in Figure 2, Figure 3, Figure 4 and Figure 5. The extrusion die cassette (12) comprises a plurality of heating elements (24) for heating within a circular guide line (16) provided in an internal structure (14) in which the die ring (18) is located. In this way, die cooling due to low extrusion speed is prevented. In other words, it is ensured that the die and the supporting elements of the die like support - bolster, backerw and cover are kept warm.

[0027] In the invention, an electrical connection apparatus (34) is provided in a lower part of said extrusion die cassette (12). The electrical connection apparatus (34) is electrically connected to the heating elements (24) in said extrusion die cassette (12) in such a way as to increase the speed of the electrical transmission line coming from a network. In this way, the speed of electricity transmission is increased. In addition, the heating continuity of the heating element (24) is ensured. Here, the electrical connection apparatus (34) is electrically connected to an electrical transmission interconnector (32) in the lower part of the die cassette (12). The electrical transmission interconnector (32) is the intermediate part to which the heating element (24) and the electrical connection from the external line (mains) are connected.

[0028] The invention provides an outer cover (36) for an electrical connection apparatus in the form of a muffle. The outer cover (36) is such that it can be inserted and removed from the front part of said electrical connection apparatus (34). In this way, it provides electrical connection line protection in the heated cassette (12).

[0029] The invention comprises a three-phase first electrical conductor (26), a second electrical conductor (28) and a third electrical conductor (30). The electrical conductors (26) (28) (30) provide electrical conduction to the heating elements (24) in the guide line (16). In this way, the electrical conduction providing heating to the heating elements (24) is provided by these conductors (26) (28) (30). In the invention, a protective cover (22) is provided in a form to cover the outer part of said electrical conductors (26) (28) (30). In this way, the heating elements (24) are protected from the external environment.

[0030] Further, features in an embodiment of the invention corresponding to the elements of an extrusion press (10) of the invention are given below;

[0031] • The structure of the extrusion die cassette (12) of the invention is generally in the form of a prism in one embodiment of the invention, and its dimensions (with a U-shaped cavity in the centre) vary according to the express capacity to be used. The length, width and height of the extrusion die cassette (12), which can be produced in desired dimensions, can be up to 3 metres.

[0032] • The material of the heating elements (24) may be ceramic, but in one embodiment of the invention it may also be made of metal-based elements and alloys in different express states.

[0033] • In one embodiment of the invention, the heating elements (24) of the invention can be arranged in desired sizes and quantities, with a diameter of between 10 mm and 50 mm.

[0034] • In one embodiment of the invention, the first, second and third electrical conductors (26) (28) (30), the bridge (electrical connection element) providing the connection of the heating elements to each other, i.e. the first, second and third electrical conductors (26) (28) (30), can be manufactured from copper, steel or any desired material in the desired diameter and thickness according to the amount of electrical energy to be transferred.

[0035] • In one embodiment of the invention, the outer cover (36) is a structure made of the same or other desired material as the material of the extrusion die cassette (12) for the purpose of protecting the heating elements (24) and the electrical conductors (26) (28) (30) added to the heated cassette, i.e. the extrusion die cassette (12), during the extrusion process.

[0036] • In the inventive extrusion press (10), the heating system operates with electrical energy.

[0037] • In one embodiment of the invention, the extrusion die cassette (12) for controlling the heating process in the inventive extrusion press (10) can be fixed with an electronic circuit that can keep the temperature at the desired value by measuring the temperature from the outside or inside.

[0038] • In one embodiment of the invention, the electrical connection apparatus (34) comprises a protective sheath made of high temperature resistant steel or other alloy, which protects the electrical connection (external power connection cable) of the heater and connection equipment (24) (32) (34) (36) in the cassette (12).

[0039] • The connection of the first, second and third electrical conductors (26) (28) (30) and the cassette (12), as the structure carrying the electrical energy to be supplied, is assembled by using the electrical connection apparatus (34), which is located in the electrical transmission interconnector (32) in one embodiment of the invention and which is the quick connection structure in the invention. Here, cooling of the die due to loss of time during the connection process is prevented. The electrical connection apparatus (34) has an anchor with a width ranging from 3 to 25 mm towards the inner part of the said cassette (12), a hole with a depth ranging from 50 to 1000 mm, and a hole in which a temperature gauge which can control the inner temperature of the cassette (12) can be placed. Since the beginning part of the hole is threaded, the end part of the temperature gauge to be installed is also threaded, and it is prevented from being displaced during the extrusion process.

[0040] • The H-shape in the centre of the extrusion die (20) in the invention, shown in Figure 2 and Figure 3, shows the shape of the profile intended to be produced.

[0041] Reference Numbers Given in the Figure

[0042] 10 Extrusion press

[0043] 12 Extrusion die cassette

[0044] 14 Internal structure

[0045] 16 Guide line

[0046] 18 Die ring

[0047] 20 Die

[0048] 22 Protective cover

[0049] 24 Heating element

[0050] 26 First electrical conductor

[0051] 28 Second electrical conductor

[0052] 30 Third electrical conductor

[0053] 32 Electrical transmission interconnector

[0054] 34 Electrical connection apparatus

[0055] 36 Outer cover

Claims

CLAIMS1. An extrusion press comprising an extrusion die cassette (12) comprising a die ring (18) pressing from its upper part in a form that prevents the die (20) from moving during the extrusion process, characterized in that it comprises at least one extrusion die cassette (12) in which the die ring (18) is located and in which there is a plurality of heating elements (24) for providing heating in a circular guide line (16) provided in an internal structure (14).

2. An extrusion press according to claim 1, characterized in that it comprises an electrical connection apparatus (34) electrically connected to heating elements (24) in said extrusion die cassette (12) in such a way as to increase the speed of an electrical transmission line from a mains supply and located in a lower part of said extrusion die cassette (12).

3. An extrusion press according to claim 1, characterized in that it comprises an electrical transmission interconnector (32) electrically connected to the electrical connection apparatus (34) and located at the bottom of the die cassette (12).

4. An extrusion press according to claim 2, characterized in that said electrical connection apparatus (34) comprises an electrical connection apparatus outer cover (36) in the form of a muffle, provided so as to be removable from the front part of said electrical connection apparatus (34).

5. An extrusion press according to any one of the preceding claims, characterized in that it comprises a 3-phase first electrical conductor (26), a second electrical conductor (28) and a third electrical conductor (30) providing electrical conduction to the heating elements (24) in the guide line (16).

6. An extrusion press according to any one of the preceding claims, characterized in that it comprises a protective cover (22) provided in a form to cover the outside of said electrical conductors (26) (28) (30).

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