A hydraulic cylinder with a throat wedge and a water-cooling line in casting molds.

Abstract

The invention relates to hydraulic cylinders used in the operation of cores (E) in low-pressure molds (A) and high-pressure casting molds, where the thermal stresses that occur during operation under high-temperature conditions in core molds are reduced by a water cooling line (10) integrated into the throat wedge (2).

Description

1 TARIFF A THROAT BLOCK WITH A WATER COOLING LINE IN CASTING MOLDS. HYDRAULIC CYLINDER Technical Area The invention relates to 5 components found in low-pressure and high-pressure aluminum casting molds. It relates to the hydraulic cylinders used in operating the matches. The invention arises, in particular, from working under high-temperature conditions in core molds. The resulting thermal stresses are dissipated by a water cooling line integrated into the throat wedge. It relates to hydraulic cylinders where the reduction is made. State of the Art 10 Low-pressure aluminum casting (LPDC) molds allow for the controlled and efficient transfer of molten aluminum. filled into the mold cavity with a relatively low pressure (typically 0.3–1 bar) They are used in systems. High-pressure aluminum die-casting (HPDC) molds are also used. where molten metal is injected into the mold at very high speed and high pressure It is used in systems. 15 found in low-pressure and high-pressure molds. molds (molds used to remove areas that are at an inverse angle in the casting) (part of) hydraulic cylinder systems that enable movement. Hydraulic cylinders are high Thanks to their force generation capabilities, the mechanisms within the mold are precise, It enables repeatable and synchronized operation. Today, 20 are used in low-pressure and high-pressure aluminum casting molds. Hydraulic cylinders experience significant performance losses under high temperature conditions. The high temperatures generated during the mold preheating process affect the cylinders used. This impairs the function of sealing elements and causes oil leaks. Problems frequently occur not only during production but also during the mold preheating process. It is observed that the condition of the aforementioned sealing elements is checked externally. 25 Because this is not possible, potential malfunctions cannot be detected in advance, and this situation This leads to unpredictable production stoppages. The hydraulic cylinders on the mold... Location also affects this problem. If it is located in an area close to the cylinder applicators, Oil leakage problems are more frequent because it is more directly exposed to high temperatures. This is happening. In addition, these failures in the existing cylinders cost companies 30 This results in high maintenance costs for sealing and bearing elements. 2 The costs are high, and a cylinder that undergoes maintenance an average of three times is a new hydraulic cylinder. It is approaching the cost. Moreover, this maintenance burden makes sustainability and It also harms environmental goals. Additional industry due to oil leaks. additional environmental concerns such as the use of oil, and the storage of waste oils and damaged seals. Problems arise. 5 In conclusion, due to the negative aspects described above and the current solutions being the subject of discussion... Due to its shortcomings, an improvement is needed in the relevant technical field. It has been made. Purpose of the Invention The invention was created by drawing inspiration from existing situations and addressing the aforementioned drawbacks. 10 It aims to solve the problem. The main purpose of the invention is to produce low-pressure and high-pressure aluminum casting molds. Hydraulic cylinders used in core cylinders are integrated into the neck block of the cylinders. thanks to the water cooling line, thermal protection resulting from high temperatures is achieved. The goal is to greatly reduce stresses. 15 Another objective of the invention is to offer a monolithic, refrigerated throat wedge. Another purpose of the invention is to integrate water into the neck block of hydraulic cylinders. The goal of the cooling line is to minimize unforeseen production stoppages. To fulfill the purposes described above, the invention is used in low-pressure doors and 20 used in the operation of cores in high-pressure casting molds  A shaft that supports the movement of the shaft, transmitting the movement of the cylinder. wedge It is a hydraulic cylinder containing; its feature is:  Integrated into the throat wedge, suitable for high temperature conditions During operation, the hydraulic cylinder's sealing and bearing 25 reducing thermal stresses occurring in the elements cooling line that provides It includes. 3 The structural and characteristic features and all the advantages of the invention are given in the figures below. This becomes clearer thanks to the detailed explanation written with references to these figures. This will be understood as such, and therefore the evaluation will also take these forms and detailed explanations into account. This should be done taking that into consideration. Figures to Help Understand the Invention 5 Figure 1 shows a general overview of a hydraulic cylinder with an integrated water-cooled throat chock. It is the appearance. Figure 2 shows a cross-sectional view of a hydraulic cylinder with an integrated water-cooled throat chock. Figure 3 is a general perspective view of the water-cooled throat wedge. Figure 4 shows the hydraulic cylinder with integrated water-cooled throat wedge inside the mold system. This is a side view. Figure 5 shows a view of the cylinder group. Explanation of Part References 1. Mile 2. Throat wedge 15 3. Throat wedge sealing and bearing elements 4. Hydraulic record 5. Cover 6. Piston 7. Piston sealing and bearing elements 20 8. Rear chock 9. Pipe 10. Cooling line A. Low pressure mold 4 B. Low pressure top mold C. Low pressure sub-mold D. Cylinder group E. Maça F. Maça carrier 5 G. Cylinder switch group Detailed Description of the Invention In this detailed description, the hydraulic cooling throat wedge (2) which is the subject of the invention is described. The preferred configurations of the cylinder are solely for the purpose of better understanding the subject. It is explained as follows: 10 The hydraulic cylinder low pressure mold (A) and high pressure mold shown in Figure 1. It is used in the operation of cores located in aluminum casting molds. In the hydraulic cylinder that is the subject of the invention, the movement of the cylinder is transmitted by a shaft (1). There is a throat wedge (2) that is passed through and supports the movement of the shaft (2). invention The subject is a cooling line (10) integrated into the hydraulic cylinder neck block (2) 15 In the current technique, the high levels that arise during the mold preheating process... temperatures and the function of sealing elements used in cylinders accordingly. to eliminate disadvantages such as deterioration and oil leaks A water-cooled cooling line (10) is installed in the throat wedge. Within the scope of the invention, 20 hydraulic cylinders are integrated into the throat block (2). thanks to the water cooling line (10) the thermal protection resulting from high temperatures Stresses are greatly reduced. This structure allows for both low pressure and high pressure. in aluminum casting molds both in core cylinders and at high pressure It can be applied in compression cylinders used in molds. Existing compression Overheating of pins when entering the gross part in hydraulic cylinder systems 25 While it cannot be prevented, the water cooling line (10) located inside the throat wedge keeps this temperature It provides optimum working conditions by absorbing the moisture. When the mold preheating process is initiated, the water cooling line is activated, and the hydraulic system... It protects the sealing and bearing elements of the cylinder and during production. It minimizes the thermal stresses that will occur during this process. In this way... It has minimized unforeseen production stoppages. Because the Bosphorus water cooling line integrated into the block (10) inside the cylinder sealing and bearing elements to operate under optimum working conditions It provides opportunities. 5 Within the scope of the invention, water is integrated into the throat block (2) of the hydraulic cylinders. Cooling line (10), the positioning of hydraulic cylinders on the mold is insignificant. This has brought about the situation. Because the water cooling line (10) remains at a high temperature. It also provides job opportunities in these regions. Existing casting 10 of hydraulic cylinder assembly (D) containing cooling line throat wedge. Thanks to its ability to connect to the cooling lines located on the workbenches, the application offers extra It can be easily used without the need for any infrastructure. Also, the water wedge in the throat... The dimensions of the refrigerated hydraulic cylinder are kept the same as those of existing cylinders. Thus It can be used directly in existing molds, without requiring any additional modifications. It is not audible. However, 15 integrated into the throat block of the hydraulic cylinders. The improved water cooling system reduces maintenance costs by 90%. along with maintenance costs, companies' sustainability and environmental goals It makes positive contributions. In one application of the invention, the throat wedge is a monolithic structure, without any No sealing element is used and no assembly is required for the system to function. It does not require a separate part. The invention includes a cooling line hydraulic cylinder. It does not provide direct cooling to the shaft or any component inside.

Claims

6 REQUESTS 1. Cores in low pressure molds (A) and high pressure casting molds (E) used in operation,  A throat that supports the movement of the shaft (1) which transmits the movement of the cylinder wedge (2) 5 It is a hydraulic cylinder containing; its feature is:  High temperature integrated into the throat wedge (2) leak tightness of the hydraulic cylinder during operation under these conditions thermal stresses occurring in bearing elements It includes a cooling line (10) which enables reduction. 10 2. A hydraulic cylinder conforming to Claim 1, characterized by its water-cooled cooling system. It includes line (10).

3. A hydraulic cylinder conforming to Claim 1, characterized by its monolithic throat design. It contains the wedge (2).