Piston type bottom plate facilitating resin recycling and material supplementing and photocuring printer

Abstract

The utility model provides a piston type bottom plate convenient for resin recovery and material supplement and a photocuring printer, which belong to the technical field of additive manufacturing and comprise a bottom plate body, a sealing element, a drainage cavity, a plurality of communicating holes, a liquid inlet hole and a liquid outlet hole, the bottom plate body is connected with the interior of the trough in a sliding fit mode, the lower end of the bottom plate body is supported on the lifting mechanism, and the sealing piece is installed on the outer side face of the bottom plate body and connected with the inner wall of the trough in a sealed mode. The drainage cavity is formed in the bottom plate body, and the bottom surface of the drainage cavity is an inclined surface; the communicating holes are formed in the upper end face of the bottom plate body and communicate with the drainage cavity. The liquid inlet hole and the liquid outlet hole are both formed in the bottom plate body and both communicated with the drainage cavity, and the liquid outlet hole corresponds to the lower end of the inclined face. According to the piston type bottom plate facilitating resin recovery and material supplement, the purpose of reducing the capacity of resin poured into a material groove is achieved, the effect of saving the resin is achieved, and the residual amount of the resin in the material groove is greatly reduced.

Description

Technical Field

[0001] This utility model belongs to the field of additive manufacturing technology, and more specifically, it relates to a piston-type base plate and a photopolymerization printer that facilitates resin recycling and replenishment. Background Technology

[0002] With the development of the additive manufacturing industry, an increasing number of 3D models need to be created using SLA (Stereolithography) printers. Meanwhile, SLA printers, with their high precision, rapid prototyping, and multi-degree-of-freedom design capabilities, demonstrate unique advantages in various fields such as prototyping, medical devices, and custom parts manufacturing. Current SLA printers require a large amount of photosensitive resin to be poured into the resin tank until it is completely full. After use, the resin in the tank needs to be recycled to a resin container, but often some resin remains at the bottom and on the inner walls of the tank, resulting in incomplete cleaning. Furthermore, the height and dimensions of the models being processed vary, theoretically requiring different amounts of resin, but currently, the tank must be filled to the brim during operation. This method leads to resin waste and low work efficiency. Utility Model Content

[0003] The purpose of this invention is to provide a piston-type base plate and a photopolymer printer that facilitate resin recycling and replenishment, in order to solve the technical problems of resin residue at the bottom of the material tank and resin waste in the prior art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A piston-type base plate for easy resin recovery and replenishment is provided, comprising a base plate body, a sealing element, a drainage cavity, a connecting hole, a liquid inlet hole, and a liquid outlet hole. The base plate body is installed in the material tank of a photopolymer printer and forms the bottom of the material tank. The base plate body is slidably connected to the inside of the material tank, and its lower end is supported on the lifting mechanism of the photopolymer printer. The sealing element is installed on the outer surface of the base plate body for sealing connection with the inner wall of the material tank. The drainage cavity is opened inside the base plate body, and the bottom surface of the drainage cavity is an inclined surface for resin flow. Multiple connecting holes are provided, all located on the upper end surface of the base plate body and connected to the drainage cavity. The liquid inlet hole and the liquid outlet hole are both located on the lower end surface of the base plate body and connected to the drainage cavity. The liquid outlet hole corresponds to the lower end of the inclined surface, allowing resin to flow towards the liquid outlet hole.

[0005] In one possible implementation, the seal includes a sealing groove formed on the outer side of the base plate body and a sealing ring installed in the sealing groove.

[0006] In one possible implementation, there are multiple sealing grooves and multiple sealing rings, with the multiple sealing grooves arranged vertically at intervals, and the multiple sealing rings respectively installed in the corresponding sealing grooves.

[0007] In one possible implementation, the projections of the plurality of connecting holes onto the horizontal plane are all located within the drainage cavity.

[0008] In one possible implementation, a plurality of the connecting holes are arranged in a rectangular array on the upper surface of the base plate body.

[0009] In one possible implementation, the inlet hole and the outlet hole are located on the same side of the base plate body.

[0010] In one possible implementation, the piston-type base plate, which facilitates resin recovery and replenishment, further includes two flexible connecting pipes, one end of which is connected to the liquid inlet and the liquid outlet, respectively.

[0011] In one possible implementation, the lower end of the base plate body is provided with a mounting plate for connecting with the lifting mechanism, and the mounting plate is provided with mounting holes.

[0012] The beneficial effects of the piston-type base plate for easy resin recovery and replenishment provided by this utility model are as follows: Compared with the prior art, the piston-type base plate of this utility model facilitates resin recovery and replenishment. During operation, the base plate body is installed at the bottom of the material tank, forming a sliding fit connection with the material tank. Under the action of the sealing element, a sealed connection is formed between the outer wall of the base plate body and the inner wall of the material tank. The operator activates the lifting mechanism of the photopolymer printer according to the height of the model to be processed, thereby driving the base plate body to move upward in the material tank to a suitable working position, changing the effective volume in the material tank. During the process of adding resin to the material tank through the liquid inlet hole, the amount of resin poured into the material tank is reduced, achieving the effect of saving resin. After the processing operation is completed, when it is necessary to discharge the resin, the drain hole is opened so that the resin in the material tank passes through the connecting hole into the drainage chamber. Under the action of the inclined surface, the resin is guided to flow quickly and completely toward the drain hole, greatly reducing the amount of resin residue in the material tank.

[0013] Another objective of this invention is to provide a photopolymerization printer, including any of the piston-type base plates described above that facilitate resin recycling and replenishment.

[0014] This utility model provides a light curing printer. By adopting a piston-type base plate that facilitates resin recycling and replenishment, it reduces the amount of resin poured into the material tank, thereby saving resin and greatly reducing the amount of resin residue in the material tank. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 A cross-sectional view of the piston-type base plate provided in an embodiment of this utility model;

[0017] Figure 2 A front view of the piston-type base plate provided in an embodiment of this utility model;

[0018] Figure 3 A top view of the piston-type base plate provided in an embodiment of this utility model;

[0019] Figure 4 A side view of the piston-type base plate provided in an embodiment of this utility model;

[0020] Figure 5 Axonometric view of the piston-type base plate provided in the embodiments of this utility model Figure 1 ;

[0021] Figure 6 Axonometric view of the piston-type base plate provided in the embodiments of this utility model Figure 2 ;

[0022] Figure 7 A schematic diagram showing the connection of the piston-type base plate installed in the material trough according to an embodiment of this utility model;

[0023] Figure 8 This is a schematic diagram showing the connection between the piston-type base plate and the lifting mechanism provided in an embodiment of the present utility model.

[0024] The following are the labeling elements in the figure:

[0025] 1. Base plate body; 11. Flexible connecting pipe; 12. Mounting plate; 13. Mounting hole; 2. Sealing element; 21. Sealing groove; 22. Sealing ring; 3. Drainage cavity; 31. Inclined surface; 4. Connecting hole; 5. Liquid inlet hole; 6. Liquid outlet hole; 7. Material trough; 8. Lifting mechanism. Detailed Implementation

[0026] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0027] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0028] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0030] Please see Figures 1 to 8 The present invention will now describe the piston-type bottom plate that facilitates resin recycling and replenishment. A piston-type base plate for easy resin recovery and replenishment includes a base plate body 1, a sealing element 2, a drainage cavity 3, a connecting hole 4, a liquid inlet hole 5, and a liquid outlet hole 6. The base plate body 1 is installed in the material tank 7 of a UV curing printer and forms the bottom of the material tank 7. The base plate body 1 is slidably connected to the inside of the material tank 7, and its lower end is supported on the lifting mechanism 8 of the UV curing printer. The sealing element 2 is installed on the outer side of the base plate body 1 and is used to seal against the inner wall of the material tank 7. The drainage cavity 3 is opened inside the base plate body 1, and the bottom surface of the drainage cavity 3 is an inclined surface 31 for resin flow. There are multiple connecting holes 4, all of which are opened on the upper end surface of the base plate body 1 and are connected to the drainage cavity 3. The liquid inlet hole 5 and the liquid outlet hole 6 are both opened on the lower end surface of the base plate body 1 and are connected to the drainage cavity 3. The liquid outlet hole 6 corresponds to the lower end of the inclined surface 31 and is used for resin to flow towards the liquid outlet hole 6.

[0031] The piston-type base plate provided by this utility model facilitates resin recycling and replenishment. Compared with the prior art, during operation, the base plate body 1 is installed at the bottom of the material tank 7, forming a sliding fit connection with the material tank 7. Under the action of the sealing element 2, a sealed connection is formed between the outer wall of the base plate body 1 and the inner wall of the material tank 7. The operator activates the lifting mechanism 8 of the photopolymer printer according to the height of the model to be processed, thereby driving the base plate body 1 to move upward in the material tank 7 to a suitable working position, changing the effective volume in the material tank 7. During the process of adding resin to the material tank 7 through the liquid inlet hole 5, the amount of resin poured into the material tank 7 is reduced, achieving the effect of saving resin. After the processing operation is completed, when it is necessary to discharge the resin, the drain hole 6 is opened so that the resin in the material tank 7 passes through the connecting hole 4 and enters the drainage cavity 3. Under the action of the inclined surface 31, the resin is guided to flow quickly and completely toward the drain hole 6, greatly reducing the amount of resin residue in the material tank 7.

[0032] By reducing the effective volume of the material tank 7, less resin is added to the material tank 7, and the time consumed is also reduced, thus improving work efficiency.

[0033] Please see Figures 1 to 6 As a specific embodiment of the piston-type base plate provided by this utility model for facilitating resin recycling and replenishment, the sealing element 2 includes a sealing groove 21 opened on the outer side of the base plate body 1 and a sealing ring 22 installed in the sealing groove 21; the sealing groove 21 is opened on the outer side of the base plate body 1 in a circumferential manner, and the annular sealing ring 22 is fitted into the sealing groove 21, so that the base plate body 1 installed in the feed trough 7 forms a good sealing connection between the base plate body 1 and the feed trough 7 under the action of the sealing ring 22 and the sealing groove 21, and no leakage occurs.

[0034] Please see Figure 1 and Figure 6 As a specific embodiment of the piston-type base plate provided by this utility model for facilitating resin recycling and replenishment, there are multiple sealing grooves 21 and sealing rings 22, with the multiple sealing grooves 21 arranged vertically at intervals, and the multiple sealing rings 22 respectively installed in the corresponding sealing grooves 21; that is, multiple sealing elements 2 are arranged axially on the outer side surface of the base plate body 1, thereby increasing the connection strength between the base plate body 1 and the material trough 7. Specifically, multiple sealing grooves 21 are arranged at intervals on the outer side surface of the base plate body 1, and sealing rings 22 are installed in each sealing groove 21.

[0035] Please see Figure 1As a specific embodiment of the piston-type bottom plate provided by this utility model for facilitating resin recycling and replenishment, the projections of multiple connecting holes 4 on the horizontal plane are all located within the drainage cavity 3; that is, during the process of resin flowing downward from the material tank 7 and passing through multiple connecting holes 4 into the drainage cavity 3, it can fall completely downward and enter the drainage cavity 3. From top to bottom, the connecting holes 4 and the drainage cavity 3 are in a completely connected state, and the flow area is large without obstructing the resin.

[0036] Please see Figure 3 and Figure 5 As a specific embodiment of the piston-type bottom plate provided by this utility model for facilitating resin recycling and replenishment, multiple connecting holes 4 are arranged in a rectangular array on the upper end surface of the bottom plate body 1; by means of the multiple connecting holes 4 arranged in a uniform manner, the communication state between the inside of the material tank 7 and the drainage cavity 3 inside the bottom plate body 1 is highly uniform, and the resin flow velocity, pressure and other parameters are consistent in all directions.

[0037] Please see Figure 1 , Figure 2 , Figure 4 and Figure 5 In one specific embodiment of the piston-type bottom plate provided by this utility model for facilitating resin recycling and replenishment, the inlet hole 5 and the outlet hole 6 are located on the same side of the bottom plate body 1; the inlet hole 5 and the outlet hole 6 are located on the same side of the bottom plate body 1, thereby facilitating the inlet and outlet operations. That is, the resin tank can be quickly and conveniently connected to the inlet hole 5 and the outlet hole 6.

[0038] Please see Figure 1 and Figure 5 As a specific embodiment of the piston-type bottom plate for easy resin recovery and replenishment provided by this utility model, the piston-type bottom plate further includes two flexible connecting pipes 11. One end of each flexible connecting pipe 11 is connected to the inlet hole 5 and the outlet hole 6, respectively. Preferably, two flexible connecting pipes 11 are fixedly installed at the lower end of the bottom plate body 1, and one end of each flexible connecting pipe 11 is connected to the inlet hole 5 and the outlet hole 6, respectively, while the other end is connected to the resin tank. This allows the resin tank to enter the drainage chamber 3 through the flexible connecting pipes 11 and the inlet hole 5. Similarly, after the work is completed, the resin in the drainage chamber 3 passes through the outlet hole 6 and enters the other flexible connecting pipe 11 to be discharged into the resin tank.

[0039] Please see Figures 1 to 8As a specific embodiment of the piston-type base plate for easy resin recycling and replenishment provided by this utility model, the lower end of the base plate body 1 is provided with a mounting plate 12 for connection with the lifting mechanism 8, and the mounting plate 12 has mounting holes 13. The mounting plate 12 is installed on the lower end surface of the base plate body 1. When the base plate body 1 is installed on the lifting mechanism 8, the lifting mechanism 8 is connected to the mounting plate 12 and the mounting holes 13, thereby driving the base plate body 1 to rise and fall stably. Specifically, there are two mounting plates 12, which are respectively installed on both sides of the base plate body 1, and the mounting plates 12 are arranged vertically. The mounting holes 13 are opened on the side of the mounting plate 12. The lifting mechanism 8 adopts a scissor lift or a jack.

[0040] Not shown in the figure, this utility model embodiment also provides a photopolymerization printer, which includes any of the piston-type base plates described above that facilitate resin recycling and replenishment.

[0041] The photopolymer printer provided by this utility model adopts the piston-type base plate that facilitates resin recycling and replenishment. Therefore, it achieves the purpose of reducing the amount of resin poured into the material tank 7, realizing the effect of saving resin, and also greatly reducing the amount of resin residue in the material tank 7.

[0042] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A piston-type bottom plate that facilitates resin recycling and replenishment, characterized in that, The system includes a base plate body, a sealing element, a drainage cavity, a connecting hole, a liquid inlet, and a liquid outlet. The base plate body is installed in the material tank of a UV-curing printer and forms the bottom of the material tank. The base plate body is slidably connected to the inside of the material tank and its lower end is supported on the lifting mechanism of the UV-curing printer. The sealing element is installed on the outer surface of the base plate body and is used to seal against the inner wall of the material tank. The drainage cavity is located inside the base plate body, and its bottom surface is an inclined surface for resin flow. There are multiple connecting holes, all located on the upper surface of the base plate body and connected to the drainage cavity. The liquid inlet and the liquid outlet are both located on the lower surface of the base plate body and are connected to the drainage cavity. The liquid outlet corresponds to the lower end of the inclined surface and is used for resin to flow towards the liquid outlet.

2. The piston-type bottom plate as described in claim 1, which facilitates resin recycling and replenishment, is characterized in that... The sealing element includes a sealing groove formed on the outer side of the base plate body and a sealing ring installed in the sealing groove.

3. The piston-type bottom plate as described in claim 2, which facilitates resin recycling and replenishment, is characterized in that... There are multiple sealing grooves and multiple sealing rings, and the multiple sealing grooves are arranged vertically at intervals, and the multiple sealing rings are respectively installed in the corresponding sealing grooves.

4. The piston-type bottom plate as described in claim 1, which facilitates resin recycling and replenishment, is characterized in that... The projections of the multiple connecting holes on the horizontal plane are all located within the drainage cavity.

5. The piston-type bottom plate as described in claim 4, which facilitates resin recycling and replenishment, is characterized in that... The multiple connecting holes are arranged in a rectangular array on the upper surface of the base plate body.

6. The piston-type bottom plate as described in claim 1, which facilitates resin recycling and replenishment, is characterized in that... The liquid inlet and the liquid outlet are located on the same side of the base plate body.

7. The piston-type bottom plate as described in claim 6, which facilitates resin recycling and replenishment, is characterized in that... The piston-type base plate, which facilitates resin recovery and replenishment, also includes two flexible connecting pipes, one end of which is connected to the liquid inlet and the liquid outlet, respectively.

8. The piston-type bottom plate as described in claim 1, which facilitates resin recycling and replenishment, is characterized in that... The lower end of the base plate body is provided with a mounting plate for connecting with the lifting mechanism, and the mounting plate is provided with mounting holes.

9. A photopolymer printer, characterized in that, Includes the piston-type base plate as described in any one of claims 1-8, which facilitates resin recycling and replenishment.

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