A flexible blower nozzle with quick and easy assembly and extended service life.

Abstract

The invention is a nozzle (10) having a main body (11) and a blowing gap (16) through which resin-coated sand can be transferred into the core mold, and its feature is that it includes a main body (11) made of flexible plastic material and an upper connecting extension (13) which enables the nozzle (10) to be fixed to the nozzle plate (30).

Description

1 Specifications Features quick and easy assembly, extended lifespan, and a flexible structure. A Blowing Nozzle Technical Area The invention relates to core boxes (upper mold and lower mold 5) used in the casting process. (structure composed of its components) a material formed by a mixture of sand and resin It relates to the nozzles that blow air into matchboxes. The invention in question concerns monolithic and / or composite structures made of plastic, etc. Made of durable material, it features quick and easy assembly and a smooth surface. It relates to a blower nozzle that eliminates clogging problems. 10 Previous Technique As is known, sand and resin are used in core manufacturing. The sand and resin... The main material is transferred from a large pool into the core through the upper funnel. towards the molding area where the upper and lower mold components are located It is blown through the correct nozzles. Sand and resin are blown into the molds, 15 Blowing nozzles are used in the conveying process. The nozzles used in the previous technique were mostly made of metal-based material. These are manufactured nozzles. Due to the metal-based nature of the nozzle, during mass production... Some technical problems are being experienced. The main one of these technical problems is nozzle blowing. The problem is the blockage of the pathway. In the blockage removal process, 20 steps are needed to clear the blocked pathway. The path is cleared using a metal skewer or rod. Another problem is that the nozzle is made of metal-based material, therefore the nozzle... If centered, it can create a destructive effect through direct contact with the molds and This subsequently causes damage to the matchbox mold and nozzle. Another significant problem is that the nozzle contains multiple parts and, via the mounting surface, 25 This is the stage of fixing the plate to the mold with bolts and various fasteners. Due to the high number of nozzles used, each nozzle needs to be screwed in and 2 Subsequently, if the item needs to be removed for repair and maintenance, the labor processes... It stretches considerably. Also, the blowing machines have to stop. This... This situation significantly affects production processes and costs. Another significant problem encountered in the previous technique was that the nozzles were made of metal-based material. Because of its composition, a continuous flow is created on the inner surface of the nozzle, and with this flow, 5 Together with the resinous sand, this flow path adheres to the inner wall of the nozzle over time. adhesion and ultimately area loss of approximately 30% in the inner diameter of the nozzle. It consists of. This situation results in pressure loss as the material passes through the progressively narrowing diameter faster. This creates a problem. The filling of the core volume will be negatively affected, and the resinous sand will be 10 Its increasing speed causes deformations in the immediate vicinity of the matchbox surfaces. In addition to forming, the resin also separates from the sand and forms on the box (mold surfaces) This also causes negative consequences such as accumulations on their surfaces and even measurement errors. This can happen. This situation can lead to significant damage to the inner diameter of the nozzle and over time. 15 is happening. The manufacturing method and material quality of the blower nozzle, and the coating to be applied, Important factors affecting diameter surface abrasion in the resin sand blowing process. These are the criteria. Deformations in the diameter that occur after the process affect both the blowing flow. It will create turbulence, negatively affecting healthy match filling, and also nozzle 20 The accelerated wear on its diameter causes its lifespan to decrease rapidly. On the other hand, the process sequence includes the blowing nozzles along with the plates to which they are fixed. When it arrives, the machine axes are inserted through the top box collection plate of the match. They enter within their tolerances and begin resin-based sandblasting operations. Core After the machine boxes (top and bottom molds) are closed, blowing is done. 25 while preparing to start the process depending on the tolerances of their own axes and nozzle rigidity, nozzle outer diameter and nozzle tip deformations can occur, This situation leads to a reduction in the lifespan of the product. 3 Another significant problem encountered in the current technology is the sealing issue. The nozzle... Due to its metal-based material content, it provides the desired pressure tightness. It cannot be provided. After the match box, i.e., the bottom and top molds, are closed, sand The blowing operation begins. Nozzles are attached to the plates via a flange to ensure clearance tolerance. It is secured by being given. The nozzles are fixed on the plate, and the box collection is 5. The blowing operation starts by passing through the holes in the plate into the core cavity. It becomes ready, there is both a fitting tolerance in the outer diameter of the nozzle and the nozzle itself. There is also a clearance tolerance between the nozzle flange and the nozzle flange. In addition, the nozzle flange and Due to the rigidity of the plate, full pressure cannot be achieved, resulting in leakage problems. Therefore, a loss in blowing pressure occurs, causing the sand to penetrate into the mold in detailed areas. The shipment cannot be made. Finally, blower nozzles can break or overheat while in the production process. a non-operator-level process when replacement is needed due to wear and tear removed from the box and sent to the model workshop or service area as needed It is mandatory. In this case, the process waits or a different matchbox needs to be connected. 15 This creates a necessity. All the above developments lead to production losses and brain drain in production. It leads to sand loss and setup losses. A patent search regarding the previous technique revealed the following: CN212792196U A Chinese application with the number [number] was found. This application concerns a support framework. A conveyor used for automatic feeding and unloading of castings. 20 The assembly is arranged on a support frame and castings a sandblowing apparatus used for carrying out sandblowing operations, transport It describes a casting sand blowing device arranged at the center of the assembly. Disclosure of the Invention The aim of the invention is to create a blower nozzle that is different from those used in the current technology, these 25 It is the introduction of a different blowing nozzle that brings a new breakthrough to the field. The main purpose of the invention is to produce it from plastic-based material, plastic-based due to its material composition, its monolithic (single-piece) structure, and 4 High wear resistance and anti-clogging properties thanks to its slippery surface material structure. The goal is to create a nozzle that is easy to clean. Another important advantage of the invention is that the nozzle is made of plastic-based material. Thanks to its flexibility, it prevents axis errors in the box closing during operation. by being tolerant, breakage and wear that may occur in conventional nozzles 5 The goal is to prevent mistakes. Another purpose of the invention is to attach the nozzle to the mold plate using bolts and the like. Quick and practical, directly by hand without the need for fasteners. The goal is to ensure its proper installation. Thus, the removal and installation method is applied using manual force. This makes it possible to change nozzles easily and quickly. This situation 10 positively impacting production processes and costs without disrupting production processes It provides. Another purpose of the invention is to prevent resin buildup due to the nozzle being made of plastic-based material. The sand does not adhere to the inner diameter of the nozzle; this is a structural characteristic of NBR type plastic material. due to the smooth surface, the diameter is 15 without sticking to the inner diameter of the nozzle. the prevention of contractions. Another purpose of the invention is because the nozzle is made of plastic-based material and The flexible structure of the nozzle tolerates axial errors and wear when entering the mold. and prevents deformations such as fractures. Another important objective of the invention is to ensure that the flange of the flexible nozzle is precisely 20° to the plate surface. It ensures a complete seal through pressure. In the blowing operation, the nozzle hole... Pressure loss around the tolerances thanks to the flexible flange surface. It creates a gasket function. Thus, additional gasket-type sealing elements are formed. without the need for additional materials, thanks to the structural and material properties of the nozzle. Its purpose is to create a sealing effect. 25 However, during the filling process with blowing, there is no pressure or sand loss. Improvement and high-quality core manufacturing will be achieved without the formation of porous structures. With this... Together, this will improve gas flow quality, prevent gas waste, and enhance gas flow efficiency. The depth of the figure will ensure that the duration is shortened. Another important objective of the invention is to ensure that the nozzle has no connection to the blowing plate. without being secured by its element, to be sent to the service area of ​​the match box Without the need for dismantling, the production operator alone can do 5 in their own area. the nozzle can be quickly and easily removed by hand without the use of any tools It provides the possibility of quick and simple installation. It is the introduction of a nozzle. Figures to Help Understand the Invention 10 Figure 1 shows a two-dimensional front view of the nozzle that is the subject of this invention. Figure 2; Two-dimensional view of the nozzle, the subject of the invention, in contact with the mold body. It is the appearance. Figure 3; Two-dimensional view of the nozzle, the subject of the invention, mounted on the top plate. It is the appearance. 15 Figure 4 shows the appearance of the nozzle used in the previous technique. Figure 4.1; Resinous sand adhering to the inner diameter of the nozzle used in the previous technique. and is a representative view showing that the inner diameter is narrowing. Figure 4.2 shows that the inner diameter of the nozzle used in the previous technique deformed over time. It is a representative view showing. 20 Reference Numbers 10-Nozzle 11- Main body Level 12, Grade 25 6 13-Top link extension 14-Inner surface 15- Connecting teeth 16-Blowing opening 17-Nozzle outer diameter surface 5 18-Inner bracelet 20-Lower mold plate 30-Nozzle plate 31-Reverse-directional fixing teeth P-Mounting direction 10 P1 - Disassembly direction S - Nozzle length Detailed Description of the Invention Figure-1 shows a main body (11) from which a resin mold 15 is made. a blowing gap that allows the sand to be transferred to the core mold (16) a mixture of sand and resin in core molds where the core making process is carried out The nozzle (10) that blows the material into the molds is shown in the illustration. The nozzle in question (10) is innovative because it has a flexible structure and is plastic-based. a main body (11) made of material and the nozzle plate of the aforementioned nozzle (10) 20 (30) includes the top link extension (13) which enables it to be fixed. on the upper connection extension (13) for fixing the nozzle (10) to the nozzle plate (30) In contrast to the reverse-directional fixing teeth (31) on the nozzle plate (30), different reverse-directional The connecting teeth (15) with teeth are formed (see figure-3). Figure- In 3; different reverse 25 compared to the reverse fixing teeth (31) on the nozzle plate (30). 7 Assembly is achieved thanks to the connecting teeth (15) which have teeth in one direction. Likewise, no bolts are required to fix the aforementioned nozzle (10) to the nozzle plate (30). With a single hand force, a vertical single stroke in the P direction can be achieved without the need for different fasteners. The desired fixing operation is performed by means of the nozzle outer diameter surface (17) with a thrust movement. This is being carried out. The nozzle P1 5 is first flexed to the right or left in the P1 direction. With the movement in that direction, it moves to the disassembly position. On the other hand, there is a gasket and different between the nozzle plate (30) and the lower mold plate (20). Its flexible structure eliminates the need for sealing elements. It includes a leak-proof stage (12). This stage (12) has a high degree of this It ensures a watertight seal in the area and also allows for disassembly movement in the P1 direction. It forms a retaining surface. Nozzle (10) made of flexible plastic-based material, NBR material, one-piece It contains a main body (11) in its structure and has a hardness of 63% to 82%. The same At the time; the metal enclosed inside the nozzle length (S) of the main body (11) mentioned. Made of high-quality material and forming high resistance at this nozzle length (S), the inner 15 The inner bracelet (18) is formed. This inner bracelet can be an alternative to the one chosen. It is a structure. It is a metal-based structure designed for use when needed. It is a structure. However, resin-mixed sand is where the sand and resin are in a continuous flow. If the material passing through the blowing gap (16) adheres to the surface, the wire, 20 blowing gap without the need to use a cleaning rod and cleaning rod (16) When the outlet is squeezed by hand, it will stretch, allowing sand and resin to be expelled. It contains a main body (11) with a flexible structure that provides Figures 4, 4.1 and 4.2 show the views of the nozzle (10) used in the previous technique. It is illustrated. The nozzle (10) used in the previous technique is metal based 25 Because of the material, sand and resin particles (14) are on its inner surface. These parts adhere to each other. Over time, the inner surface (14) diameter in this region narrows. This causes. Likewise, subsequently, a high percentage of surface area on the inner surface (14) This causes the disorder (see figure 4.2). 8 The nozzle that is the subject of the invention is a flexible plastic-based material made of NBR. Because of the material, the structural feature and material property of the inner surface (14) This prevents the sand and resin from sticking together. The continuous flow of sand and resin... adhesion of the material to the surface passing through the blowing gap (16) in which it is in the form of Slippery inner surface with a hardness of 63% to 82% to prevent (14) 5 It has been created.

Claims

9 REQUESTS 1- The invention consists of a main body (11) through which resin is extracted from the said main body (11). a blower that enables the mixed sand to be transferred into the core mold In casting molds where casting is done which contains void (16) sand and The nozzle (10) blows the resin-based casting material into the molds, 5 feature; - a main body made of plastic-based material with a flexible structure (11), - upper which enables the aforementioned nozzle (10) to be fixed to the nozzle plate (30) It contains the link extension (13). 2- The nozzle (10) conforming to claim 1 is the nozzle (10) mentioned. Created in the upper connecting extension (13) for fixing to the plate (30), to the fixing teeth (30) in the nozzle plate with reverse or straight serrated structure (31) is that it includes connecting teeth (15) with teeth in the opposite direction. 3- The nozzle (10) conforming to Claim 1 is characterized by; the aforementioned nozzle plate (30) and bottom use of gasket and different sealing elements between mold plate (20) (12) which provides complete sealing with its flexible structure without the need for a separate stage It includes. 4- The nozzle (10) conforming to Claim 1 is made of flexible plastic-based material. The product contains the main body (11) which is made of NBR material. 5- Nozzle (10) conforming to Request 1, with a hardness ratio of 63% to 82%. It contains a main body (11) made of NBR material. 25 6- Nozzle (10) conforming to Request 1, its characteristic is that it is made of flexible plastic-based material. The product consists of a single, monolithic structure containing a main body (11). 7- The nozzle (10) conforming to claim 1 is characterized by the fact that the aforementioned nozzle (10) No bolts or different connections for fixing to the nozzle plate (30) With a single hand force, without the need for any additional personnel, a single vertical movement in the P direction. It contains a nozzle outer diameter surface (17) which enables it to be fixed by its movement. 8- Nozzle (10) conforming to Claim 1, its feature is; sand and resin in continuous flow. adhesion of the material to the surface passing through the blowing gap (16) in this case, without the need to use wire, cleaning rod and cleaning rod If the blowing gap (16) outlet is squeezed by hand, it will stretch and sand and It contains a flexible main body (11) that allows the resin to be expelled. 10 9- The nozzle (10) conforming to Claim 1 is characterized by its connection to the main body (11 nozzle). made of metal-based material enclosed within its length (S) and this nozzle Inner ring with partial structure from the neck (S), creating high resistance. (18) includes. 15 10- Nozzle (10) conforming to Claim 1, its feature is; sand and resin in continuous flow. adhesion of the material passing through the blowing gap (16) to the surface Slippery inner surface with a hardness of 63% to 82% preventing (14) It includes. 20

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