A DEVICE AND METHOD USED IN THE CASTING INDUSTRY FOR PLACING CORES IN SAND MOLDS.

Abstract

The invention relates to an apparatus and method used in the iron casting industry for placing cores (15) into sand molds (12). The apparatus comprises an intermediate platform (2) to which the mold surface centering pins (4) are attached, a main platform (3) carrying the core (15), and a pneumatic cylinder (1) that moves the main platform (3). The centering pins (4) are placed directly into the sand slots (13) created during molding on the sand mold (12), rather than into degree bushings, and the stepped seating diameters (5) on the pins are placed on the parting surface (14). Thus, precise core placement is achieved with a single operator using a lightweight and ergonomic apparatus without the need for a lower apparatus.

Description

1 1 TARIFF PLACEMENT OF CORES IN SAND MOLDS IN THE CASTING INDUSTRY A DEVICE AND METHOD THAT PROVIDES TECHNICAL FIELD The invention relates to cores that form the internal cavities of casting parts in the iron casting industry. figures, inside sand molds (grades) in foundry internal operations a device used in its placement and by means of said device It relates to a method of placement in a match. The invention specifically involves a sand mold that requires no additional apparatus. 10 sand nests were created using the model during the molding process. The main platform, which is directly referenced and carries the core, is controlled by a pneumatic cylinder. moving, thus enabling precise, safe and ergonomic core manipulation with a single operator. It relates to a device and method that enables placement. PREVIOUS TECHNIQUE In the iron casting industry, the core that forms the inner part of the cast parts is 15. The figures are placed inside sand molds during the foundry's internal operations. This process, in the known state of the art, is generally manufactured using welded construction. large and heavy, auxiliary devices called "centering apparatus" were used. This is carried out with equipment. Known centering devices consist of two parts: a lower device and an upper device. 20 It consists of two parts: the upper apparatus and the main platform. It consists of platforms. On the intermediate platform; the centering pins sit on the degree's dividing surface. seat backs and the main platform move up and down. The platform is equipped with chrome-plated shafts attached to its four corners, which enable it to move. 25 While the apparatus is suspended by the crane, the apparatus is operated by two operators positioned opposite each other. Centering pins are threaded into the degree bushings; then the crane moves downwards. 2 2 by moving the seat backs so that they sit flush with the degree-separating surface is provided. On the main platform are all the systems and supports that carry the spade, as well as four... Linear bearings are located at the corners that enable up-and-down movement. After the platform is placed on the slope, the operator moves the crane downwards 5 When it continues to be driven, the main platform is precisely positioned via linear bearings. By making a linear movement, the core is placed precisely in the sand mold. It leaves. In this application under the known state of the art, the following technical problems occur: The following are encountered: 10 In order for the apparatus to be centered on the degree markers, it must be positioned on both sides of the apparatus. It is mandatory to use at least two operators who will be involved in the intervention. Because the adapter is large, the adapter pins fit into the degree bushings. Contractions and compressions can occur during the centering process. The device was excessively heavy and large in terms of weight and size, therefore the workplace accident was 15. The risk is high. Due to the size of the equipment, very large equipment storage areas are required. The cost of manufacturing the equipment is high, and the production times are long. A high-capacity crane is required to transport the equipment. The two-part structure, consisting of a lower and an upper section, reduces preparation and installation times to 20 minutes. It prolongs the project and negatively affects project timelines. Since the centering reference is taken via the degree bushings, the degree and the sand The tolerances between the molds directly affect the accuracy of core positioning. It is reflected. In conclusion, due to the negative aspects described above and the fact that the current solutions are 25 Due to the lack of knowledge on the subject, an improvement should be made in the relevant technical field. It was deemed necessary. 3 3 PURPOSE AND BRIEF DESCRIPTION OF THE INVENTION The aim of this invention is to eliminate the drawbacks of the known state of the art; the precise, safe and fast placement of the cores into the sand mold The goal is to create a device and method that provides this. One purpose of the invention is to make the apparatus consist of two parts: a lower apparatus and an upper apparatus. by eliminating the resulting structure, placement into the match with only a single upper attachment. The goal is to ensure the completion of the process. Another purpose of the invention is to use degree bushings as the centering reference instead of The aim is to enable the sand to be extracted directly from the mold surface. This invention falls within this scope. The subject is the mold surface centering pins located on the apparatus, molding 10 during the process, sand nests were created on the sand mold using a model. They pass directly through; the stepped seating diameters located on the pins are: The device determines the vertical position of the apparatus by sitting on the degree's separation surface. Thus, the match is referenced according to the geometry of the sand mold itself, and the degree Positional deviations caused by tolerances are eliminated. 15 Another purpose of the invention is to enable the movement of the main platform relative to the intermediate platform by crane. The movement is provided by a pneumatic cylinder instead of a pneumatic cylinder. The return of the pneumatic cylinder... The hole is held in a raised position, allowing the apparatus to be placed on the sand mold. During the lowering process, the mold surface centering pins first seat into the sand holes, and The sand is prevented from hitting the mold. 20 minutes after centering is complete. Then, with the command given to the pneumatic cylinder, the main platform moves through linear bearings. By making a precise linear motion, the core is placed precisely in the sand mold. It leaves. Another aim of the invention is to optimize the size and weight of the apparatus to an ergonomic level. reducing the risk of workplace accidents caused by weight and large size; thus reducing the risk of workplace accidents by 25%. elimination, ability to work with lower capacity cranes and equipment stock It is about using the areas more efficiently. Another objective of the invention is to enable two operators in the current state of the art. by enabling the centering operation to be performed by a single operator The goal is to increase efficiency. 30 4 4 Another purpose of the invention is that, thanks to its simple and easy-to-implement structure, it can be used in many areas. Suitable for use in various types of matches, it has low manufacturing cost and short manufacturing time. The goal is to offer a sustainable equipment structure. BRIEF DESCRIPTION OF THE FIGURES The diagrams prepared to help better understand this invention are explained below. 5 Figure 1: Front view of the match placement device, which is the subject of the invention. Figure 2: Bottom view of the apparatus that is the subject of the invention. Figure 3: The apparatus in the position of picking up the core waiting on the pallet. This is its appearance (pneumatic cylinder in forward position). Figure 4: The spade in its raised position together with the main platform. This is its appearance (pneumatic cylinder in reverse position). Figure 5: Mold surface centering pin inserted into the sand groove and stepped. This is a detailed view showing the seat diameter resting on the dividing surface. Figure 6: View of the core in its position inside the sand mold. REFERENCE NUMBERS 15 1. Pneumatic cylinder 2. Intermediate platform 3. Main platform 4. Mold surface centering pin 5-stage seating diameter 20 6. Match support 7. Linear bearing 8. Guide shaft 9. Crane sling mount 10. Bearing elements 25 11. Carrier body 12. Sand mold (grade) 13. Sand nest 14. Separation surface 15th Match 16. Pallet 5 DETAILED DESCRIPTION OF THE INVENTION The invention, the match placement device, is essentially an intermediate platform (2), the subject is a main platform that can move in the vertical direction according to the intermediate platform (2) (3), at least one pneumatic cylinder (1) that moves the main platform (3) and intermediate It contains at least three mold surface centering pins (4) attached to the platform (2) 10 (Figure 1). The intermediate platform (2) enables the apparatus to be positioned on the sand mold (12). It is a fixed platform. The apparatus is transported by crane on the intermediate platform (2). a carrier housing that carries the pneumatic cylinder (1) with a crane hanger housing (9) (11) are located. Mold surface centering pins (4) are attached to the intermediate platform (2) 15 and their free ends extend downwards. Main platform (3), all equipment holding the spade (15) and spade supports (6) It is the platform to which it is attached, which moves the spade (15) up and down. Main inside the linear bearings (7) located on platform (3), intermediate platform (2) 20 by means of moving guide shafts (8) and bearing elements (10) It is guided and thus only precise linear motion is achieved. It can do so. In the preferred configuration of the main platform (3), the match (15) at least one pneumatic cylinder (1) that grips and secures during transport is located (Figure 2). The body of the pneumatic cylinder (1) is attached to the intermediate platform (2) via the carrier body (11) 25 It is fixed and its shaft is connected to the main platform (3). Pneumatic cylinder (1) forward When it reaches the position, the main platform (3) is downward, and when it returns to the position, It is moving upwards. 6 6 Mold surface centering pins (4) are one of the essential elements of the invention. This ensures that the apparatus is referenced on the sand mold (12). The technique Unlike the known situation, these pins are not for (4) degree bushings, but for the previously During the molding process, the sand slots opened on the model and the sand mold (12) (13) passes directly. Each mold surface is on the centering pin (4), 5 a stepped shoulder that forms between the pilot diameter and the top diameter that enters the sand burrow (13) There is a seating diameter (5). After the pilot part of the pin (4) enters the sand socket (13) then the stepped seating diameter (5) sits on the separation surface (14) of the degree and The vertical position of the apparatus is determined (Figure 6). The free ends of the pins (4) are sand Manufactured in a conical or beveled form to allow easy passage into the sockets (13) 10 is being done. Mold surface centering pins (4) preferably in a triangular arrangement and main platform (3) It is positioned so that it passes through linear bearings (Figure 2). Three-point referencing provides information about the position and freedom of rotation within the plane. It ensures that it is determined at once. If needed, the geometry of the spade (15) 15 Depending on the situation, the number of pins (4) can be selected as more than three. The device system that is the subject of the invention consists only of the upper device, and the technology... It does not require the lower attachment used in its known configuration. Therefore... The dimensions and weight of the apparatus have been reduced to an ergonomic level, and manufacturing costs and times have been decreased. This has made it possible to work with a reduced, lower-capacity crane. 20 The method of placing the match into the hole using the apparatus described in this invention is as follows: It consists of the following steps: In the first step, the pneumatic cylinder (1) is brought to the forward position and the main platform (3) is lowered. It is pushed in the direction. The apparatus is placed on the pallet (16) with the help of a crane, onto the waiting core (15) It is lowered onto the spade (15) by means of the spade supports (6) 25 is positioned. During this time, the mold surface centering pins (4) are free; It is not in contact with any element. The core (15) is connected to the pneumatic cylinder (1). It is grasped and secured (Figure 3). In the second step, the pneumatic cylinder (1) is returned to its original position. The main platform (3) and Therefore, the spade (15) comes to the up position. The aim here is to get the spade (15) up 30 7 7 holding the centering pins (4) of the mold surface of the apparatus, the sand in the lower sand mold (12) The first step is to ensure that it sits in the sockets (13). In this position, the mold surface The end level of the centering pins (4) is higher than the bottom level of the core (15). It is located below (Figure 4). In this way, the spade (15) is placed in the sand mold (12) It will not collide and will be positioned in the mold in a controlled manner. 5 In the third step, the operator brings the apparatus onto the sand mold (12) with the help of a crane. The mold surface centering pins (4) of the apparatus are attached to the degree pin bushings, During molding, the model is passed into the sand holes (13) that were opened and pins (4) is fitted onto the separation surface (14) from the stepped seating diameter (5). Thus, both the planar and vertical positions of the apparatus are directly in the sand mold (12) 10 This is determined by taking reference to (Figure 5, Figure 6). In the fourth step, after the apparatus is placed on the sand mold (12), the pneumatic The cylinder (1) is commanded to move downwards. Pneumatic cylinder (1) The main platform (3) to which it is attached is precisely downward through linear bearings (7). Moving linearly, the core (15) is placed in its exact position inside the sand mold (12). it is placed (Figure 7). In the final step, the pneumatic cylinder (1) is opened, releasing the core (15) and the apparatus The sand is taken from the mold (12) by crane and the start for the next match (15) It is brought to its current position. All steps are performed by a single operator. It can be accomplished. 20 Thanks to the device and method described in the invention, it is possible to control objects that are difficult to control due to their size. The devices are extremely precise and easy to control, multiple Operations that require an operator are performed by a single operator, thus increasing efficiency. Improvements in the ergonomics of the equipment to ensure workplace safety. This is being provided, equipment manufacturing costs are being reduced, and lower capacity cranes 25 By using these methods, high costs are avoided and the dimensions of the apparatus are reduced. Due to its smaller size, equipment storage areas are used more efficiently. Since the device in question is a simple and easily applicable system, many It can be applied in the match (15) type and offers a sustainable structure. The scope of protection of the invention is specified in the attached claims, and the description and figures are included in section 30. 8 8 The described structures are not limiting in nature to the invention; in the relevant technical field Experts, without deviating from the core subject of the invention, can create similar structures. They can improve.

Claims

1 1 REQUESTS 1. In the iron casting industry, cores (15) are placed inside sand molds (12). used in its placement; carrying an intermediate platform (2) and a core (15), intermediate a main platform (3) that can move in the vertical direction according to platform (2) It is a match placement device containing; 5 - its body is fixed to the intermediate platform (2) and its shaft is attached to the main platform (3). which is the main platform (3) and the intermediate platform (2) is downward and upward at least one pneumatic cylinder that moves (1), - molding on sand mold (12) which is attached to the intermediate platform (2) sand nests (13) 10 created by means of the model during referencing the apparatus on the sand mold (12) by passing directly through. providing and free ends of the pneumatic cylinder (1) in the back position, main from the lowest level of the spade (15) carried by platform (3) at least three mold surface centering pins (4) located below, - each mold surface is located on the centering pin (4), sand slot 15 (13) forming a shoulder between the incoming pilot diameter and the upper diameter and sand by sitting on the parting surface (14) of the mold (12) the vertical position of the apparatus determining the stepped seating diameter (5) It includes.

2. It is a match placement device according to claim 1 and its feature is; the main platform (3) 20 linear that enables precise linear movement relative to the intermediate platform (2) beds (7) and moving within the said linear beds (7), a It includes guide shafts (8) whose ends are attached to the main platform (3).

3. A match placement device according to claim 1 or 2, its characteristic is; main attached to the bottom of the platform (3) and in contact with the top surface of the core (15) 25 It includes the spade supports (6) which carry the spade (15).

4. Is it a match placement device according to any of the previous requirements? Its feature is that it is located on the main platform (3) and carries the spade (15). 2 2 at least one pneumatic cylinder (1) that grips and secures during operation It includes.

5. Is it a match placement device according to any of the previous requirements? Its feature is that the mold surface centering pins (4) are arranged in a triangular pattern and the main 5 to pass through the linear bearings on platform (3) It is its positioning.

6. Is it a match placement device according to any of the previous requirements? The feature is that the free ends of the mold surface centering pins (4) are sanded. conical or beveled form to facilitate passage into the sockets (13) that is. 10 7. Is it a match placement device according to any of the previous requirements? feature; any bottom apparatus placed at the bottom of the sand mold (12) It is structured as a single-piece upper assembly, without containing any components.

8. Is it a match placement device according to any of the previous requirements? Feature; pneumatic cylinder (1), in forward position main platform (3) core (15) 15 lowering the core (15) to the mold surface in the back position. a double-acting centering pin (4) that lifts above the end level It is a cylinder.

9. Is it a match placement device according to any of the previous requirements? Its feature is that it is located on the intermediate platform (2) and the pneumatic cylinder (1) 20 a carrier body (11) and on the said carrier body (11) It includes a crane hanger housing (9).

10. Sanding of the spades (15) with an apparatus according to any of the previous requests. The method of placing it into the mold (12) is characterized by; - the main platform (3) is lowered by bringing the pneumatic cylinder (1) to the forward position 25 moving in that direction, - by lowering the apparatus onto the core (15) waiting on the pallet (16) the match supports (6) are placed on the match (15) and during this time The mold surface centering pins (4) are left idle, 3 3 - by bringing the pneumatic cylinder (1) back to the main platform (3) and the spade (15) is moved upwards together and the bottom of the spade (15) level of the end level of the mold surface centering pins (4) to be placed on top of, - Bringing the apparatus onto the sand mold (12) and centering the mold surface 5 the insertion of pins (4) into sand holes (13) and gradual seating their diameters (5) are placed on the separation surface (14), - by giving the pneumatic cylinder (1) a forward movement command, the main the platform (3) moves downwards by means of linear bearings (7). 10 to be made and the position of the core (15) in the sand mold (12) abandonment, - lifting the apparatus from the sand mold (12) with the crane It includes the steps.

11. It is a method according to claim 10 and its feature is; the core (15) core supports (6) After being placed on it, it is gripped by the pneumatic cylinder (1) 15 After fixing and placing it inside the sand mold (12), pneumatic This involves opening the cylinder (1) and releasing the core (15).

12. A method according to claim 10 or 11, characterized by the fact that all steps are performed by a single operator. It is carried out by. 4 4

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