Release device for 3D printing

Abstract

The utility model discloses a release device for 3D printing, and relates to the technical field of 3D printing, the release device for 3D printing comprises a controller, a base, a placing plate, a surrounding plate, an electric push rod, a vacuum pump, a liquid storage tank, a water pump and a connecting pipe, the bottom end of the base and the bottom end of the electric push rod are fixedly installed, in the utility model, the vacuum pump enables an adsorption disc to generate negative pressure through an adsorption pipeline; the adsorption disc firmly adsorbs the printing platform on the placing plate, the stability of the printing platform in the release process is guaranteed, the reliability and the success rate of the release process are improved, then release liquid is accurately sprayed on the bottom surface, making contact with a printed piece, of the printing platform through the multiple nozzles, and finally the electric push rod drives the placing plate to descend slowly. According to the invention, the separation of the printed piece and the printing platform is realized, the separation of the printed finished product and the printing platform can be efficiently, losslessly and stably realized, the overall quality and production efficiency of 3D printing are improved, and the rejection rate and cost in the release process are reduced.

Description

Technical Field

[0001] This utility model relates to the field of 3D printing technology, and in particular to a release device for 3D printing. Background Technology

[0002] With the increasing popularity of 3D printing technology, separating the printed product from the printing platform has always been a critical and challenging step. After printing, the printed part is often tightly adhered to the platform, especially for some printed parts with complex structures or large areas. For example, when printing large plastic models using fused deposition modeling (FDM) technology, the cooling and shrinkage of the plastic during the printing process, as well as the thermal adhesion between the plastic and the platform, make it difficult to remove the printed part from the platform.

[0003] For example, Chinese patent CN117283863A discloses a tilting release device for a photopolymerization 3D printer, which includes a rotating middle plate and a tilting mechanism. The rotating middle plate is fixedly connected to the material trough, and the other end of the rotating middle plate is movably connected to the tilting mechanism. The rotating middle plate is fixedly connected to the material trough, and the tilting mechanism drives the material trough to tilt up and down through the rotating middle plate. The tilting mechanism includes a driving component, an eccentric wheel, and a transmission assembly. The eccentric wheel is fixedly connected to the output end of the driving component, and one end of the transmission assembly is rotatably connected to the eccentric wheel, while the other end is fixedly connected to the rotating middle plate.

[0004] Existing release methods include manual prying, which not only easily damages the bottom surface of the printed part, resulting in compromised printing accuracy, but also has low operational efficiency. Some methods use a heating platform to melt the bottom of the printed part before separation, but this method is difficult to control the temperature precisely, which can easily cause the printed part to deform or over-melt, affecting the printing quality. To address the above problems, a release device for 3D printing is proposed. Utility Model Content

[0005] The purpose of this invention is to solve the problems existing in the prior art and to propose a release device for 3D printing.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a release device for 3D printing, comprising a controller, a base, a placement plate, a surrounding plate, an electric push rod, a vacuum pump, a liquid storage tank, a water pump, and a connecting pipe. The bottom end of the base is fixedly installed with the bottom end of the electric push rod, the top end of the electric push rod is fixedly connected with the bottom of the placement plate, an adsorption plate is fixedly connected to the top of the placement plate, the bottom of the surrounding plate is fixedly connected to the outer edge of the placement plate, and a spray pipe is fixedly connected to the top of the surrounding plate. Multiple nozzles are uniformly fixedly connected to the inner side of the spray pipe. An adsorption pipe is fixedly connected to the top of the vacuum pump, and the vacuum pump is fixedly connected to the adsorption plate through the adsorption pipe. One end of the water pump is fixedly connected to the bottom end of the liquid storage tank, and the other end of the water pump is fixedly connected to the spray pipe through the connecting pipe.

[0007] Preferably, the enclosure has symmetrical openings on both sides, and a liquid receiving pipe is fixedly connected to the outside of the opening.

[0008] Preferably, multiple fixing rods are symmetrically fixedly connected to both ends of the base, and a limit rod is slidably connected to the top of the fixing rod.

[0009] Preferably, the top of the limiting rod is fixedly connected to the bottom of the placement plate, and the bottom of the vacuum pump is fixedly installed to the bottom of the base.

[0010] Preferably, two liquid receiving frames are symmetrically arranged at the bottom end of the base, and the bottom end of the controller is fixedly connected to the bottom end of the base.

[0011] Preferably, a liquid filling pipe is fixedly connected to one end of the top of the liquid storage tank.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. In this utility model, the vacuum pump generates negative pressure on the adsorption plate through the adsorption pipe. The adsorption plate firmly adsorbs the printing platform onto the placement plate, ensuring the stability of the printing platform during the release process and improving the reliability and success rate of the release process. Then, the release liquid is precisely sprayed onto the bottom surface of the printing platform that contacts the printed part through multiple nozzles. Finally, the placement plate is slowly lowered by an electric push rod to separate the printed part from the printing platform. This method can efficiently, non-destructively, and stably separate the printed product from the printing platform, improve the overall quality and production efficiency of 3D printing, and reduce the scrap rate and cost during the release process.

[0014] 2. In this utility model, by setting two openings on the enclosure, excess release liquid on the placement plate will drip into the liquid receiving frame through the openings and the liquid receiving pipe. The release liquid in the liquid receiving frame can be recycled, avoiding waste and overuse of release liquid, improving the release effect while reducing costs. Attached Figure Description

[0015] Figure 1 A three-dimensional structural diagram of a release device for 3D printing is provided for this utility model;

[0016] Figure 2 This utility model provides a schematic diagram of the rear structure of a release device for 3D printing;

[0017] Figure 3 A bottom view of the release device for 3D printing is provided for the present invention.

[0018] Figure 4 This invention provides a front view of a release device for 3D printing.

[0019] Legend: 1. Controller; 2. Base; 3. Placement plate; 4. Enclosure; 5. Spray pipe; 6. Nozzle; 7. Adsorption plate; 8. Electric push rod; 9. Vacuum pump; 10. Storage tank; 11. Liquid receiving frame; 12. Water pump; 13. Liquid adding pipe; 14. Limiting rod; 15. Connecting pipe; 16. Adsorption pipe; 17. Fixing rod; 18. Opening; 19. Liquid receiving pipe. Detailed Implementation

[0020] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0022] Example 1: As Figure 1 - Figure 4As shown, this utility model provides a release device for 3D printing, including a controller 1, a base 2, a placement plate 3, a surrounding plate 4, an electric push rod 8, a vacuum pump 9, a liquid storage tank 10, a water pump 12, and a connecting pipe 15. The bottom end of the base 2 is fixedly installed with the bottom end of the electric push rod 8, the top end of the electric push rod 8 is fixedly connected with the bottom of the placement plate 3, an adsorption plate 7 is fixedly connected to the top of the placement plate 3, the bottom of the surrounding plate 4 is fixedly connected to the outer edge of the placement plate 3, and a spray pipe 5 is fixedly connected to the top of the surrounding plate 4. Multiple nozzles 6 are evenly fixedly connected to the inner side of the spray pipe 5. An adsorption pipe 16 is fixedly connected to the top of the vacuum pump 9, and the vacuum pump 9 is fixedly connected to the adsorption plate 7 through the adsorption pipe 16. One end of the water pump 12 is fixedly connected to the bottom end of the liquid storage tank 10, and the other end of the water pump 12 is fixedly connected to the spray pipe 5 through the connecting pipe 15.

[0023] The specific setup and function of this embodiment are described below: In this device, the vacuum pump 9 generates negative pressure on the adsorption plate 7 through the adsorption pipe 16. The adsorption plate 7 firmly adsorbs the printing platform onto the placement plate 3, preventing the printing platform from moving during the release process. This ensures the stability of the printing platform during the release process, preventing release failure or damage to the printed parts due to platform movement, and improving the reliability and success rate of the release process. It also helps the release liquid to better penetrate and function at the bottom of the printed parts. Then, the release liquid is precisely sprayed onto the bottom surface of the printing platform in contact with the printed parts through multiple nozzles 6. Finally, the electric push rod 8 drives the placement plate 3 to slowly descend, realizing the vertical movement of the printing platform during the release process, thereby achieving the separation of the printed part from the printing platform. This can efficiently, non-destructively, and stably separate the printed product from the printing platform, improving the overall quality and production efficiency of 3D printing, and reducing the scrap rate and cost during the release process. At the same time, the device can set the release liquid spraying parameters through the controller 1, which can reasonably control the amount of release liquid used according to different printing materials and the shape and size of the printed parts, avoiding waste and overuse of release agent, improving the release effect while reducing costs.

[0024] Example 2: Figure 1 - Figure 3 As shown, openings 18 are symmetrically provided on both sides of the enclosure 4, and liquid receiving pipes 19 are fixedly connected to the outer side of the openings 18. Multiple fixing rods 17 are symmetrically fixedly connected to both ends of the base 2, and a limiting rod 14 is slidably connected to the top of the fixing rod 17. The top of the limiting rod 14 is fixedly connected to the bottom of the placement plate 3. The bottom end of the vacuum pump 9 is fixedly installed to the bottom end of the base 2. Two liquid receiving frames 11 are symmetrically provided at the bottom end of the base 2. The bottom end of the controller 1 is fixedly connected to the bottom end of the base 2. A liquid adding pipe 13 is fixedly connected to one end of the top of the storage tank 10.

[0025] The overall effect of this embodiment is that the release liquid sprayed on the placement plate 3 is prevented from dripping onto the ground randomly under the action of the surrounding plate 4. By setting two openings 18 on the surrounding plate 4, excess release liquid on the placement plate 3 will drip into the liquid receiving frame 11 through the openings 18 and the liquid receiving pipe 19. The release liquid in the liquid receiving frame 11 can be recycled, avoiding waste and overuse of release liquid, improving the release effect while reducing costs.

[0026] The device's operation and working principle are as follows: During use, a suitable amount of specially formulated release liquid (using environmentally friendly, low-volatility materials with good lubrication and separation properties, such as a specially formulated silicone oil emulsion) is added to the storage tank 10 via the liquid addition pipe 13. Two receiving frames 11 are then placed on either side of the base 2. After 3D printing, the printing platform with the printed part is placed on the placement plate 3 (the bottom of the printing platform is in contact with the suction plate 7 on top of the placement plate 3). The operator sets the release liquid spraying parameters in the control system via the touch screen of the controller 1. After the device is started, the control system of the controller 1 first controls the vacuum pump 9 to start. The vacuum pump 9 creates negative pressure on the suction plate 7 through the suction pipe 16, causing the suction plate 7 to adhere to the printed part. The printing platform is then set up. The water pump 12 delivers the release liquid from the storage tank 10 to the spray pipe 5 through the connecting pipe 15. Finally, multiple release nozzles 6 on the outside of the spray pipe 5 spray the release liquid onto the bottom of the printed part where it contacts the printing platform according to the set parameters. Under the control of the control system, the release nozzles 6 can accurately spray the release liquid onto the bottom surface of the printing platform where it contacts the printed part. After the release liquid is sprayed, the water pump 12 is turned off, and the control system turns on the electric push rod 8 to keep the printed part stationary. The electric push rod 8 drives the placement plate 3 to slowly descend. Due to the action of the release agent and the fixation of the adsorption plate 7, the printed part will gradually separate from the printing platform. After separation, the vacuum pump 9 and the electric push rod 8 are turned off, the printed part and the printing platform are removed, and the next printing job can be prepared.

[0027] In this device, the vacuum pump 9 firmly attaches the printing platform to the placement plate 3 via the adsorption plate 7, preventing the printing platform from moving during the release process, thus improving the reliability and success rate of the release process. It also helps the release liquid to better penetrate and function at the bottom of the printed part. Then, multiple nozzles 6 precisely spray the release liquid onto the bottom surface of the printing platform where it contacts the printed part. Finally, the electric push rod 8 drives the placement plate 3 to slowly descend, realizing the separation of the printed part from the printing platform. This device can efficiently, non-destructively, and stably separate the printed product from the printing platform, improving the overall quality and production efficiency of 3D printing, and reducing the scrap rate and cost during the release process.

[0028] By setting two openings 18 on the enclosure 4, excess release liquid on the placement plate 3 will drip into the liquid receiving frame 11 through the openings 18 and the liquid receiving pipe 19. The release liquid in the liquid receiving frame 11 can be recycled, avoiding waste and overuse of release liquid, improving the release effect while reducing costs.

[0029] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. A release device for 3D printing, characterized in that: The system includes a controller (1), a base (2), a placement plate (3), a surrounding plate (4), an electric push rod (8), a vacuum pump (9), a liquid storage tank (10), a water pump (12), and a connecting pipe (15). The bottom end of the base (2) is fixedly installed with the bottom end of the electric push rod (8). The top of the electric push rod (8) is fixedly connected with the bottom of the placement plate (3). An adsorption plate (7) is fixedly connected to the top of the placement plate (3). The bottom of the surrounding plate (4) is fixedly connected with the outer edge of the placement plate (3). The top of the enclosure (4) is fixedly connected to a spray pipe (5), and multiple nozzles (6) are evenly fixedly connected to the inner side of the spray pipe (5). The top of the vacuum pump (9) is fixedly connected to an adsorption pipe (16), and the vacuum pump (9) is fixedly connected to the adsorption plate (7) through the adsorption pipe (16). One end of the water pump (12) is fixedly connected to the bottom end of the storage tank (10), and the other end of the water pump (12) is fixedly connected to the spray pipe (5) through a connecting pipe (15).

2. The release device for 3D printing according to claim 1, characterized in that: The enclosure (4) has symmetrical openings (18) on both sides, and a liquid receiving pipe (19) is fixedly connected to the outside of the opening (18).

3. The release device for 3D printing according to claim 1, characterized in that: The base (2) is symmetrically fixed at both ends with multiple fixing rods (17), and the top of the fixing rods (17) is slidably connected with a limit rod (14).

4. The release device for 3D printing according to claim 3, characterized in that: The top of the limiting rod (14) is fixedly connected to the bottom of the placement plate (3), and the bottom of the vacuum pump (9) is fixedly installed to the bottom of the base (2).

5. The release device for 3D printing according to claim 1, characterized in that: The bottom end of the base (2) is symmetrically provided with two liquid receiving frames (11), and the bottom end of the controller (1) is fixedly connected to the bottom end of the base (2).

6. The release device for 3D printing according to claim 1, characterized in that: A liquid filling pipe (13) is fixedly connected to one end of the top of the liquid storage tank (10).

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