Stereolithography device with optimized resin feeding mechanism for nanoparticle-modified photopolymers.

Abstract

The invention relates to resin feeding systems used in the field of stereolithography-based additive manufacturing technologies. Specifically, the invention relates to a stereolithography device that optimizes resin consumption by delivering nanoparticle-modified or pure photopolymer resin to the required coordinates and in the necessary quantity during the printing process.

Description

1 TARIFF OPTIMIZED RESIN FOR NANOPARTICLE-DOPED PHOTOPOLYMERS FEEDING MECHANISM STEREOLITHOGRAPHY DEVICE TECHNICAL AREA 5 The invention is used in the field of stereolithography-based additive manufacturing technologies. The invention relates to resin feeding systems, specifically those with nanoparticle additives or pure resin. photopolymer resin requires the necessary coordinates and conditions during the printing process. Stereolithography that enables the transmission of a sufficient amount of resin while optimizing resin consumption. It relates to the device. 10 PREVIOUS TECHNIQUE In stereolithography-based additive manufacturing methods, production takes place in a resin tank. the photopolymer resin filled into it forms layers on the printing plate This is achieved through curing. For the printing to be completed without errors, 15 filling the resin tank with more resin than the volume of the model to be produced. It is considered a standard requirement in current practices. Only a portion of the resin poured into the resin tank reaches the model during printing. It is converted, and the unused portion remains in the tank after the printing process is complete. Transferring the remaining resin from the tank to a container where it will be stored again and printing 20 Afterwards, the resin tank needs to be cleaned. This affects both the production process. This both prolongs the process and creates additional workload. With the increasing prevalence of stereolithography-based additive manufacturing technologies Resins with different properties, such as flexible or durable, have been developed. The resins... 25 Graphene-like nanoparticles can also be included. Nanoparticle-reinforced composite resins in large-volume resin tanks. If filled in large quantities, the homogeneity of the mixture will not be maintained throughout the pressing period. It is becoming difficult to protect it. It remains stationary inside the tank. Nanoparticles settle over time, making the model 30 years old. This creates unfavorable conditions. As a result of precipitation, the resin mixture... Different characteristics can develop in different regions, and the mechanical and mechanical properties of the printing layers... Their thermophysical properties can change. 2 Composite resin in excess of the amount required for printing in the resin tank. Filling it also poses a problem in terms of material cost, especially. Due to the high unit cost of nanoparticles added to the resin, the tank The mixture, although included, cannot be converted into a model, which is economically unfeasible. This results in a significant loss. The resin remaining in the tank after printing is 5%... The difficulty of winning also increases the likelihood of this loss. Mechanical applications of nanoparticle and resin mixtures prepared in large volumes Homogenizing the mixture through various methods or sonication is a laborious process. Cleaning the excess and settled material remaining in the tank after pressing is both... This leads to both material loss and additional labor. Resin tank and printing 10 The use of chemicals such as isopropyl alcohol during plate cleaning is also It increases the amount of material consumed in the production process. THE PURPOSE OF THE INVENTION The main purpose of the invention is to completely fill the resin tank in stereolithography devices with 15 by eliminating the need for refilling, the amount of resin required for printing The aim is to ensure precise control. Another purpose of the invention is to create only the relevant printing layer. printing by conveying the required amount of resin to the printing focus at the bottom of the resin tank Ultimately, the goal is to minimize the amount of waste resin remaining in the tank. 20 The invention also enables the long-term storage of nanoparticle-reinforced resin in large-volume tanks. to prevent it from waiting and the resulting nanoparticle deposition It aims to eliminate it. The resin is in small volumes and printed Thanks to the simultaneous feeding of data into the system during the process, the different models obtaining the same mechanical and thermophysical properties in the layers 25 is the goal. One of the aims of the invention is to reduce the cost of high-cost nanoparticle-modified resins. The aim is to reduce raw material waste by using only the necessary amount. Thus excess resin poured into the tank but not transformed into the printed model This prevents the costs it creates. 30 The invention covers large-volume composite resin mixtures. by preparation, mechanical mixing or sonication One aim is also to reduce the need for homogenization. Low 3 Thanks to the ability to start production with sufficient resin mixtures, the preparation time is reduced. The aim is to shorten the process and make the printing process more efficient. Cleaning of the resin tank and printing plate after printing is necessary. Reducing time, labor and the use of chemicals like isopropyl alcohol is also important. 5 This is among the aims of the invention. Accordingly, reducing labor costs in the production process... The aim is to reduce the printing process and create a more sustainable one. LIST OF FIGURES Figure 1. Exploded view of the invention. 10 The corresponding numbers in the figures are: 1. Resin tank 2. Resin storage tank 3. Peristaltic pump 15 4. Carrier body 5. Axial fixing block 6. X-axis motor / driver 7. Mobile carrier 8. Screw shaft / Drive shaft 20 9. Linear guide shaft 10. Nozzle 11. Nozzle carrier 12. Linear slide 13. Miller inter-support block 25 14. Printing plate 15. Electronic control unit 16. Connecting hose (from pump to nozzle) 17. Connecting hose (from resin storage unit to pump) DETAILED DESCRIPTION OF THE INVENTION The stereolithography device that is the subject of the invention consists of a resin tank (1), resin storage chamber (2), peristaltic pump (3), carrier housing (4), axial fixing block (5), X-axis motor or driver (6), movable carrier (7), screw shaft or drive shaft (8), linear guide 4 shaft (9), nozzle (10), nozzle carrier (11), linear slide (12), support block between shafts (13), printing plate (14), electronic control unit (15), extending between pump and nozzle connection hose (16) and the connection extending between the resin storage tank and the pump It consists of a hose (17). The resin tank (1) constitutes the main volume in which the printing process is carried out. 5 Within the scope of the invention, there is no need to fill the resin tank (1) completely with resin. It is not audible. The resin is only in the amount required to create the relevant layer. and is sent to the region where the printing will take place. Resin storage tank (2), homogenous resin prepared before printing process This is the section where the resin mixture is stored. In the resin storage tank (2) pure 10 photopolymer resin or nanoparticle-reinforced photopolymer resin can be provided. Peristaltic pump (3) pumps the resin located in the resin storage tank (2) It ensures that the water is conveyed to the nozzle (10) with a controlled flow rate. Peristaltic pump (3), taking the resin from the storage tank (2) via the connecting hose (17) and 15 through the connecting hose (16) located between the pump and the nozzle to the nozzle (10) It transmits. The carrier body (4) is placed on the elements that form the resin feeding mechanism. It forms the main structure in which it is placed. Axial fixing blocks (5) and Inter-mill support blocks (13), structural 20 on the carrier body (4) of the system It contributes to the preservation of its integrity and location accuracy. The X-axis motor or driver (6) relates to the printing layer of the nozzle (10). It enables positioning on the horizontal axis according to the coordinate data. X-axis Circular motion generated by the motor (6), screw shaft or drive shaft (8) It is converted into linear motion via this. 25 The movable carrier (7) moves linearly in the direction of the drive provided by the screw shaft (8). It moves on guide shafts (9). The movable carrier (7) carries the nozzle (10) and It mediates the movement of the nozzle carrier (11) to the desired printing coordinate. Linear guide shafts (9) guide the determined movement of the movable carrier (7). It ensures that it progresses in the direction of the nozzle carrier (11) and nozzle (10), linear slide 30 (12) moves on and thanks to this structure, along the nozzle pressure area The process is ensured to proceed smoothly. Nozzle (10) is the end section where the resin is released directly to the required coordinate. It forms. The nozzle (10) is only necessary for the formation of the relevant layer. pour the amount of resin into the pressure focus located at the bottom of the resin tank (1) It drips. Thus, there is excess resin in the tank (1) that will not be used in printing. The presence of excessive amounts of resin is prevented. The electronic control unit (15) processes the resin feeding operation with the printing coordinates. It is the governing control structure. The electronic control unit (15) controls the printing plate (14) 5 It processes the data and target coordinates related to the layer being created. According to the data received, simultaneous command to the X-axis motor (6) and peristaltic pump (3) It is configured to send. The printing process is carried out by the electronic control unit (15) on the printing plate (14) By processing the data belonging to the layer and the target coordinates to which the resin will be delivered, 10 It starts. The electronic control unit (15) directs the nozzle (10) to the target position. While operating the X-axis motor (6) for conveying the required amount of resin It also controls the peristaltic pump (3). The ball screw (8) is driven by the operation of the x-axis motor (6) and the motor Circular motion is converted into linear motion. This motion is achieved using a linear guide 15. the movable carrier (7) on the miller (9) moves to the specified position It provides. The nozzle carrier (11) and nozzle (10) together with the movable carrier (7) are linear. The sled (12) is moved to the target coordinate. During the positioning of the nozzle (10), the peristaltic pump (3) uses resin 20 pure resin or nanoparticle reinforced resin in storage container (2) It receives water through the connecting hose (17). It is controlled by the peristaltic pump (3). The resin conveyed by the flow rate moves through the flexible connecting hose (16) It reaches the nozzle (10) in this state. Nozzle (10) to the coordinate determined by the electronic control unit (15) When it arrives, only the amount of resin needed for the existing layer is added to the resin tank's 25 (1) drips into the pressure focus at the base. The nozzle is fed with resin. The movement is carried out simultaneously, thus creating a low impact on the active curing area. A high-volume resin feed is created. The resin is introduced into the system in small volumes and during printing. Nanoparticle-modified resin kept stationary for a long period in a large-volume tank 30 This prevents the accumulation of nanoparticles. Thus, the sedimentation of nanoparticles... Loss of homogeneity is prevented, and the same mechanical properties are maintained in every layer of the model. This enables the acquisition of thermophysical properties. 6 Because only the amount of resin needed is fed during the printing process, At the end of printing, there is no excess resin left in the resin tank (1) that is difficult to recover. This structure is particularly useful in composite resins where high-cost nanoparticles are used. It reduces raw material loss. The system operates on the principle of low-volume resin feeding, allowing for large-volume 5 the need for the preparation and homogenization of nanoparticle and resin mixtures It also eliminates the need for printing using a small amount of resin mixture. It can be started and the preparation time can be shortened. After printing, there should not be an excess amount of resin in the resin tank (1), printing It reduces the time required for cleaning the plate (14) and the resin tank (1). 10 The amount of chemicals like isopropyl alcohol used in cleaning processes is also minimized. This reduces labor and material usage, while streamlining the printing process. It is being made sustainable. 20 30

Claims

7 REQUESTS 1. In stereolithography-based additive manufacturing processes, the photopolymer required for printing. controlled and coordinate-based feeding of resin into the resin tank It is a stereolithography device that provides; 5 features. - a resin tank in which the printing process is carried out (1), - pure photopolymer resin or nanoparticle-reinforced photopolymer resin a resin storage container in which it is kept (2), - controlled resin taken from the said resin storage tank (2) a peristaltic pump that transmits with flow rate (3), 10 - the resin is placed on the pressure focus determined at the bottom of the resin tank (1) a nozzle that releases to the coordinate (10), - an X-axis motor that changes the position of the nozzle (10) on the horizontal axis or driver (6), - The circular motion of the X-axis motor or drive (6) is linear 15 at least one of the screw shafts / drive shafts that convert motion (8), - driven by a screw shaft or drive shaft (8) and linear guide a movable carrier (7) moving on a shaft (9), - a nozzle (10) is mounted on and moves on a linear slide (12) nozzle carrier (11), 20 - data relating to the layer being formed of the printing plate (14) and the target by processing the coordinates, the X-axis motor or driver (6) and peristaltic a pump (3) configured to send simultaneous commands electronic control unit (15), - a 25 extending between the resin storage tank (2) and the peristaltic pump (3) connection hose (17) and - a connecting hose extending between the peristaltic pump (3) and the nozzle (10) (16) is characterized by its inclusion.

2. Stereolithography device according to claim 1, its features are; carrier body (4), axial It is characterized by containing a fixing block (5) and an inter-shaft support block (13). 30

Images