Post-processing equipment for PBF printing plastic parts and installation method of post-processing equipment

Abstract

The invention discloses post-processing equipment for PBF printing plastic parts and an installation method thereof.The post-processing equipment comprises an equipment outer shell, a loading cavity is formed in the equipment outer shell, a reaction cabin used for loading the PBF printing plastic parts is arranged in the loading cavity, and a cabin cover is arranged on the upper portion of the reaction cabin; the loading cavity is provided with a retention assembly for fixing the reaction cabin; the lower part of the reaction cabin is connected with the recovery cabin through a communicating pipe, the recovery cabin is used for recovering a vaporized solvent in the reaction cabin, and a connecting assembly is arranged on the recovery cabin, so that the communicating pipe is connected with the recovery cabin through the connecting assembly; wherein the reaction cabin is connected to the loading cavity through the retention assembly and is communicated with the recovery cabin through the connecting assembly. Through the arrangement of the retention assembly and the connecting assembly, a simpler structure is realized, so that the installation of the reaction cabin does not need complex operations of complex alignment and mechanical connection modes such as a plurality of bolts, buckles and the like.

Description

Technical Field

[0001] The invention relates to a post-processing device for PBF printing plastic parts and an installation method thereof. Background Art

[0002] With the continuous development of 3D printing technology, PBF printing technology has been widely used in the field of plastic parts manufacturing.

[0003] However, plastic parts printed by PBF usually require post-processing to improve their properties and quality.

[0004] There are some problems with existing post-processing equipment, such as complex equipment structure and cumbersome installation steps. At the same time, the fixing and connection methods of the reaction chamber are not simple and fast enough. The fixing method of the reaction chamber usually adopts mechanical connection methods such as bolts and buckles. These connection methods require precise alignment and tightening. Improper operation can easily lead to the reaction chamber being not firmly fixed. During the post-processing process, the reaction chamber may loosen due to vibration or other external forces, affecting the treatment effect and safety.

[0005] Therefore, a post-processing device for PBF-printed plastic parts and an installation method thereof are proposed. Summary of the invention

[0006] The object of the present invention is to provide a post-processing device for PBF printing plastic parts and an installation method thereof to solve the problems raised in the above-mentioned background technology.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: a post-processing device for PBF-printed plastic parts, comprising an outer shell of the device, a loading chamber is provided inside the outer shell of the device, a reaction chamber for loading PBF-printed plastic parts is provided in the loading chamber, a hatch is provided on the upper part of the reaction chamber, and a retaining assembly for fixing the reaction chamber is provided in the loading chamber; The lower part of the reaction chamber is connected to the recovery chamber through a connecting pipe, and the recovery chamber is used to recover the vaporized solvent in the reaction chamber. The recovery chamber is provided with a connecting assembly so that the connecting pipe is connected to the recovery chamber through the connecting assembly; Wherein, the reaction chamber is connected to the loading chamber through a retaining component and is communicated with the recovery chamber through a connecting component.

[0008] Preferably, the retaining assembly includes a retaining groove opened on the loading cavity, a slide plate is arranged inside the retaining groove, the slide plate is connected to the bearing plate through two groups of connecting rods, and a plurality of anti-slip strips are arranged on the bearing plate.

[0009] Preferably, an inner cavity is provided in the slide plate, a return spring is provided inside the inner cavity, and the return spring is located directly below the connecting rod, so that the connecting rod can move elastically in the inner cavity through the return spring; The sliding plate is provided with a rolling groove at the bottom of the side of the inner cavity, and a ball is embedded in the rolling groove.

[0010] Preferably, the inner wall of the retaining slide groove is provided with a guide groove for the rolling of the ball; A notch is provided at the retaining slide groove, and the notch and the bearing plate cooperate with each other.

[0011] Preferably, a retaining plate is provided on the upper part of the reaction chamber, the retaining plate has the same shape as the bearing plate, and a clamping groove cooperating with the anti-slip strip is provided at the bottom of the retaining plate; The combined height of the slide plate, the load-bearing plate and the retaining plate matches the height of the retaining slide groove.

[0012] Preferably, the connecting assembly comprises a guide cylinder located in the middle of the outer shell of the equipment, a bellows connected to the recovery cabin is arranged inside the guide cylinder, and a connecting joint is arranged on the upper part of the bellows.

[0013] Preferably, a sealing spring is provided between the bellows and the guide cylinder, and the sealing spring is located below the connecting joint.

[0014] Preferably, a receiving groove cooperating with the connecting pipe is opened on the upper part of the connecting joint, a sealing gasket is arranged at the receiving groove, an "L"-shaped guide groove is opened at the receiving groove, and the guide groove is arranged in an arc shape, and a positioning groove is opened at the tail end of the guide groove.

[0015] Preferably, a connecting support plate is provided on the outer periphery of the connecting pipe, and the connecting support plate and the guide groove cooperate with each other.

[0016] A method for installing a post-processing device for PBF printing plastic parts comprises the following steps: Step A, placing the reaction chamber at the outer shell of the equipment through the loading cavity, so that the retaining plate at the reaction chamber fits the position of the load-bearing plate, and the retaining plate is clamped to the anti-slip strip side of the load-bearing plate through the clamping groove, and at this time, the connecting pipe at the lower part of the reaction chamber is plugged into the connecting joint of the guide cylinder; Step B, the reaction cabin is pressed down through the hatch cover, the retaining plate squeezes the connecting rod through the bearing plate, the connecting rod moves toward the inner cavity to squeeze the return spring, the return spring is compressed until the bearing plate fits onto the slide plate, and the retaining plate is located below the notch of the retaining slot; Step C, rotating the reaction chamber, the retaining plate rotates to the tail end of the guide groove through the ball bearing under the slide plate, and the elastic force generated by the return spring squeezes the retaining plate to fit the inner wall of the guide groove, completing the initial positioning of the reaction chamber; Step D: During the process of pressing down the reaction chamber, the connecting support plate of the connecting pipe is pressed and fitted to the receiving groove position of the connecting joint through the guide groove, squeezing the sealing gasket inside, causing the sealing gasket to undergo elastic deformation and fill the gap between the connecting pipe and the connecting joint; Step E: The connecting joint is forced to move downward, driving the bellows to fold, and at the same time the connecting joint squeezes the sealing spring, and the sealing spring generates elastic force that acts in the opposite direction to the connecting pipe through the connecting joint; Step F: When the reaction chamber rotates, the connecting pipe moves in the guide groove, driving the connecting support plate to rotate to the positioning groove at the tail end of the guide groove, and the secondary positioning of the reaction chamber is completed through the positioning of the connecting pipe.

[0017] Compared with the prior art, the present invention has the following beneficial effects: The present invention realizes a simpler structure by providing a retaining assembly and a connecting assembly. The cooperation of the slide plate, connecting rod, bearing plate and anti-slip strip in the retaining assembly makes the installation of the reaction chamber unnecessary for complicated alignment and cumbersome operation of mechanical connection methods such as multiple bolts and buckles.

[0018] During the installation process, from placing the reaction chamber on the outer shell of the equipment to the subsequent pressing down, rotating and other operations, the entire process is relatively simple and quick, which greatly reduces the complexity of the installation steps and reduces the probability of installation errors.

[0019] The design of the retention assembly makes the fixation of the reaction chamber simpler and faster. Through the cooperation of the slide plate, connecting rod, return spring and ball bearing, the reaction chamber is pressed down by the hatch cover, the retention plate squeezes the connecting rod, the return spring is compressed, and the rotation of the ball bearing in the guide groove and the elastic force of the return spring are combined to quickly achieve the initial positioning of the reaction chamber.

[0020] This fixing method avoids the process of precise alignment and tightening of traditional bolts and clips. In addition, during the post-processing process, due to the certain stability of its structure, it can effectively prevent the reaction chamber from loosening due to vibration or other external forces, thereby improving the processing effect and safety.

[0021] The design of the connection assembly realizes a reliable and simple connection between the reaction chamber and the recovery chamber. The connection joint, bellows, sealing spring and sealing gasket cooperate with each other. The connecting support plate of the connecting pipe squeezes the sealing gasket through the guide groove, so that the sealing gasket undergoes elastic deformation to fill the gap. At the same time, the cooperation between the bellows and the sealing spring can ensure the sealing and stability of the connection.

[0022] This connection method avoids the problem of loose connection that may occur in traditional connection methods. In addition, in step F, the rotational positioning of the connecting pipe in the guide groove further enhances the reliability of the reaction chamber connection, ensures the normal operation of the solvent recovery and other links in the post-processing process, and improves the operating efficiency and safety of the entire equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 A schematic diagram of the structure of the device housing according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the reaction chamber structure of an embodiment of the present invention; Figure 4 A schematic diagram of the structure of a retaining assembly according to an embodiment of the present invention; Figure 5 It is a schematic diagram of the cross-section structure of the retaining component according to an embodiment of the present invention; Figure 6 Schematic diagram of the internal structure of an embodiment of the present invention; Figure 7 It is a schematic diagram of the cross-section structure of a connection assembly according to an embodiment of the present invention; Figure 8 Schematic diagram of the connecting joint structure according to an embodiment of the present invention.

[0024] In the figure: 1. Equipment outer shell; 101. Loading chamber; 2. Reaction chamber; 201. Retaining plate; 202. Snap-in groove; 3. Hatch cover; 4. Retaining assembly; 401. Retaining slide groove; 4011. Guide rolling groove; 4012. Notch; 402. Slide plate; 4021. Inner chamber; 4022. Rolling groove; 403. Connecting rod; 404. Load-bearing plate; 405. Anti-slip strip; 406. Return spring; 407. Ball; 5. Connecting pipe; 501. Connecting support plate; 6. Connecting assembly; 601. Guide cylinder; 602. Bellows; 603. Connecting joint; 604. Sealing spring; 605. Receiving groove; 606. Sealing gasket; 607. Guide groove; 6071. Positioning groove. DETAILED DESCRIPTION

[0025] In order to solve the problem that the installation steps of the reaction chamber in the prior art are relatively cumbersome. At the same time, for the problem that the fixing and connection methods of the reaction chamber are not simple and fast enough, an embodiment of the present invention provides a PBF printing plastic parts post-processing equipment and an installation method thereof. The technical scheme in the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiment of the present invention. Obviously, the described embodiment is only a part of the embodiment of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0026] See also Figure 1-8 The present invention provides a post-processing device for PBF-printed plastic parts, comprising a device outer shell 1, a loading chamber 101 is provided inside the device outer shell 1, a reaction chamber 2 for loading PBF-printed plastic parts is provided in the loading chamber 101, a hatch 3 is provided on the upper part of the reaction chamber 2, and a retaining component 4 for fixing the reaction chamber 2 is provided in the loading chamber 101; The lower part of the reaction chamber 2 is connected to the recovery chamber through a connecting pipe 5. The recovery chamber is used to recover the vaporized solvent in the reaction chamber 2. A connecting component 6 is provided on the recovery chamber so that the connecting pipe 5 is connected to the recovery chamber through the connecting component 6. The reaction chamber 2 is connected to the loading chamber 101 through the retaining component 4 and is communicated with the recovery chamber through the connecting component 6 .

[0027] The retaining assembly 4 includes a retaining groove 401 opened on the loading cavity 101, a slide plate 402 is arranged inside the retaining groove 401, and the slide plate 402 is connected to a bearing plate 404 through two groups of connecting rods 403. The bearing plate 404 is provided with multiple groups of anti-slip strips 405.

[0028] The slide plate 402 has an inner cavity 4021, and a return spring 406 is disposed inside the inner cavity 4021. The return spring 406 is located directly below the connecting rod 403, so that the connecting rod 403 can move elastically in the inner cavity 4021 through the return spring 406. The slide plate 402 is provided with a rolling groove 4022 at the bottom side of the inner cavity 4021 , and a ball 407 is embedded in the rolling groove 4022 .

[0029] The inner wall of the retaining groove 401 is provided with a guide groove 4011 for the rolling of the ball 407; A notch 4012 is formed at the retaining groove 401 , and the notch 4012 and the carrying plate 404 cooperate with each other.

[0030] A retaining plate 201 is disposed on the upper portion of the reaction chamber 2. The retaining plate 201 has the same shape as the bearing plate 404, and a snap-in groove 202 is provided at the bottom of the retaining plate 201 to cooperate with the anti-slip strip 405. The combined height of the slide plate 402 , the bearing plate 404 and the retaining plate 201 matches the height of the retaining slot 401 .

[0031] The connection assembly 6 includes a guide cylinder 601 located in the middle of the equipment outer shell 1, a bellows 602 connected to the recovery cabin is arranged inside the guide cylinder 601, and a connecting joint 603 is arranged on the upper part of the bellows 602.

[0032] A sealing spring 604 is disposed between the bellows 602 and the guide cylinder 601 , and the sealing spring 604 is located below the connecting joint 603 .

[0033] The upper part of the connecting joint 603 is provided with a receiving groove 605 that cooperates with the connecting pipe 5, and a sealing gasket 606 is arranged at the receiving groove 605. An "L"-shaped guide groove 607 is opened at the receiving groove 605, and the guide groove 607 is arranged in an arc shape, and a positioning groove 6071 is opened at the tail end of the guide groove 607.

[0034] A connecting support plate 501 is disposed on the outer periphery of the connecting pipe 5 , and the connecting support plate 501 and the guide groove 607 cooperate with each other.

[0035] A method for installing a post-processing device for PBF printing plastic parts comprises the following steps: Step A, placing the reaction chamber 2 at the outer shell 1 of the device through the loading chamber 101, so that the fixing plate 201 at the reaction chamber 2 is in contact with the position of the carrier plate 404, and the fixing plate 201 is clamped to the anti-slip strip 405 side of the carrier plate 404 through the clamping groove 202, and the connecting pipe 5 at the lower part of the reaction chamber 2 is plugged into the connecting joint 603 of the guide cylinder 601; Step B, the reaction chamber 2 is pressed down through the hatch 3, the retaining plate 201 squeezes the connecting rod 403 through the bearing plate 404, the connecting rod 403 moves toward the inner cavity 4021 to squeeze the return spring 406, and the return spring 406 is compressed until the bearing plate 404 fits onto the slide plate 402, at which time the retaining plate 201 is located below the notch 4012 of the retaining slot 401; Step C, rotating the reaction chamber 2, the retaining plate 201 rotates to the tail end of the guide groove 4011 through the ball 407 under the slide plate 402, and the elastic force generated by the return spring 406 squeezes the retaining plate 201 to fit the inner wall of the guide groove 4011, completing the initial positioning of the reaction chamber 2; Step D: During the process of pressing down the reaction chamber 2, the connecting support plate 501 of the connecting pipe 5 is pressed and fitted to the receiving groove 605 of the connecting joint 603 through the guide groove 607, squeezing the sealing gasket 606 therein, causing the sealing gasket 606 to undergo elastic deformation, thereby filling the gap between the connecting pipe 5 and the connecting joint 603; Step E: The connection joint 603 is forced to move downward, driving the bellows 602 to fold. At the same time, the connection joint 603 squeezes the sealing spring 604. The sealing spring 604 generates elastic force that acts on the connecting pipe 5 in the reverse direction through the connection joint 603. Step F: When the reaction chamber 2 rotates, the connecting pipe 5 moves in the guide groove 607 , driving the connecting support plate 501 to rotate to the positioning groove 6071 at the tail end of the guide groove 607 , and the secondary positioning of the reaction chamber 2 is completed through the positioning of the connecting pipe 5 .

[0036] The post-processing device for PBF-printed plastic parts and the installation method thereof of the present invention have the following advantages: The present invention realizes a simpler structure by providing the fixing assembly 4 and the connecting assembly 6. The cooperation of the slide plate 402, the connecting rod 403, the bearing plate 404 and the anti-slip strip 405 in the fixing assembly 4 makes it unnecessary to install the reaction chamber 2 by complicated alignment and cumbersome operation of mechanical connection methods such as multiple bolts and buckles.

[0037] During the installation process, from placing the reaction chamber 2 on the outer shell 1 of the equipment to the subsequent pressing down, rotating and other operations, the entire process is relatively simple and quick, which greatly reduces the complexity of the installation steps and reduces the probability of installation errors.

[0038] The design of the retaining assembly 4 makes it easier and faster to fix the reaction chamber 2. Through the cooperation of the slide plate 402, the connecting rod 403, the return spring 406 and the ball 407, the reaction chamber 2 is pressed down by the cover 3, the retaining plate 201 squeezes the connecting rod 403, the return spring 406 is compressed, and the rotation of the ball 407 in the guide groove 4011 and the elastic force of the return spring 406 can quickly achieve the initial positioning of the reaction chamber 2.

[0039] This fixing method avoids the process of precise alignment and tightening of traditional bolts and clips, and in the post-processing process, due to the certain stability of its structure, it can effectively prevent the reaction chamber 2 from loosening due to vibration or other external forces, thereby improving the processing effect and safety.

[0040] The design of the connection assembly 6 realizes a reliable and simple connection between the reaction chamber 2 and the recovery chamber. The connection joint 603, the bellows 602, the sealing spring 604 and the sealing gasket 606 cooperate with each other, and the connection support plate 501 of the connecting pipe 5 squeezes the sealing gasket 606 through the guide groove 607, so that the sealing gasket 606 undergoes elastic deformation to fill the gap. At the same time, the cooperation between the bellows 602 and the sealing spring 604 can ensure the sealing and stability of the connection.

[0041] This connection method avoids the problem of loose connection that may occur in traditional connection methods, and in step F, the connection reliability of the reaction chamber 2 is further enhanced by rotating the connecting pipe 5 in the guide groove 607, ensuring the normal operation of the solvent recovery and other links in the post-processing process, thereby improving the operating efficiency and safety of the entire equipment.

[0042] While the invention has been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations may be made thereto without departing from the principles and spirit of the invention, the scope of the invention being defined by the appended claims and their equivalents.

Claims

1. A post-processing device for PBF-printed plastic parts, characterized by: The device comprises an outer shell (1), wherein a loading chamber (101) is provided inside the outer shell (1), a reaction chamber (2) for loading PBF-printed plastic parts is provided in the loading chamber (101), a chamber cover (3) is provided on the upper part of the reaction chamber (2), and a retaining assembly (4) for fixing the reaction chamber (2) is provided in the loading chamber (101); The lower part of the reaction chamber (2) is connected to the recovery chamber via a connecting pipe (5), and the recovery chamber is used to recover the vaporized solvent in the reaction chamber (2). The recovery chamber is provided with a connecting assembly (6) so that the connecting pipe (5) is connected to the recovery chamber via the connecting assembly (6); The reaction chamber (2) is connected to the loading chamber (101) via a retaining assembly (4) and is simultaneously connected to the recovery chamber via a connecting assembly (6).

2. A post-processing device for PBF-printed plastic parts according to claim 1, characterized in that: The retaining assembly (4) comprises a retaining groove (401) opened on the loading cavity (101), a slide plate (402) is arranged inside the retaining groove (401), the slide plate (402) is connected to a bearing plate (404) via two groups of connecting rods (403), and a plurality of groups of anti-slip strips (405) are arranged on the bearing plate (404).

3. A post-processing device for PBF-printed plastic parts according to claim 2, characterized in that: An inner cavity (4021) is provided in the slide plate (402), a return spring (406) is provided inside the inner cavity (4021), and the return spring (406) is located directly below the connecting rod (403), so that the connecting rod (403) can move elastically in the inner cavity (4021) through the return spring (406); The sliding plate (402) is provided with a rolling groove (4022) at the bottom side of the inner cavity (4021), and a ball (407) is embedded inside the rolling groove (4022).

4. The post-processing device for PBF-printed plastic parts according to claim 3, characterized in that: The inner wall of the retaining slide groove (401) is provided with a guide groove (4011) for the rolling of the ball (407); A notch (4012) is provided at the retaining slide groove (401), and the notch (4012) and the bearing plate (404) cooperate with each other.

5. The post-processing device for PBF-printed plastic parts according to claim 4, characterized in that: A retaining plate (201) is provided on the upper part of the reaction chamber (2), the retaining plate (201) having the same shape as the bearing plate (404), and a clamping groove (202) cooperating with the anti-slip strip (405) is provided at the bottom of the retaining plate (201); The combined height of the slide plate (402), the bearing plate (404) and the retaining plate (201) matches the height of the retaining slide groove (401).

6. The post-processing device for PBF-printed plastic parts according to claim 1, characterized in that: The connection assembly (6) comprises a guide cylinder (601) located in the middle of the device outer shell (1), a bellows (602) connected to the recovery cabin is arranged inside the guide cylinder (601), and a connection joint (603) is arranged on the upper part of the bellows (602).

7. The post-processing device for PBF-printed plastic parts according to claim 6, characterized in that: A sealing spring (604) is provided between the bellows (602) and the guide cylinder (601), and the sealing spring (604) is located below the connecting joint (603).

8. The post-processing device for PBF-printed plastic parts according to claim 7, characterized in that: The upper portion of the connecting joint (603) is provided with a receiving groove (605) that cooperates with the connecting pipe (5), a sealing gasket (606) is provided at the receiving groove (605), an "L"-shaped guide groove (607) is provided at the receiving groove (605), and the guide groove (607) is arranged in an arc shape, and a positioning groove (6071) is provided at the tail end of the guide groove (607).

9. The post-processing device for PBF-printed plastic parts according to claim 8, characterized in that: A connecting support plate (501) is provided on the outer periphery of the connecting pipe (5), and the connecting support plate (501) and the guide groove (607) cooperate with each other.

10. A method for installing a post-processing device for PBF-printed plastic parts according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step A, placing the reaction chamber (2) at the outer shell (1) of the device through the loading chamber (101), so that the retaining plate (201) at the reaction chamber (2) fits the position of the bearing plate (404), and the retaining plate (201) is clamped to the anti-slip strip (405) side of the bearing plate (404) through the clamping groove (202), and at this time, the connecting pipe (5) at the lower part of the reaction chamber (2) is plugged into the connecting joint (603) of the guide cylinder (601); Step B, the reaction chamber (2) is pressed downward through the hatch cover (3), the retaining plate (201) squeezes the connecting rod (403) through the bearing plate (404), the connecting rod (403) moves toward the inner cavity (4021) to squeeze the return spring (406), and the return spring (406) is compressed until the bearing plate (404) fits onto the slide plate (402), at which time the retaining plate (201) is located below the notch (4012) of the retaining slide groove (401); Step C, rotating the reaction chamber (2), the retaining plate (201) is rotated to the tail end of the guide groove (4011) through the ball (407) under the slide plate (402), and the elastic force generated by the return spring (406) presses the retaining plate (201) to fit the inner wall of the guide groove (4011), thereby completing the initial positioning of the reaction chamber (2); Step D: During the process of pressing down the reaction chamber (2), the connecting support plate (501) of the connecting pipe (5) is pressed and fitted to the receiving groove (605) of the connecting joint (603) through the guide groove (607), thereby squeezing the sealing gasket (606) therein, causing the sealing gasket (606) to undergo elastic deformation, thereby filling the gap between the connecting pipe (5) and the connecting joint (603); Step E: The connecting joint (603) is forced to move downward, driving the bellows (602) to fold, and at the same time the connecting joint (603) squeezes the sealing spring (604), and the sealing spring (604) generates elastic force that acts in the opposite direction on the connecting pipe (5) through the connecting joint (603); Step F: When the reaction chamber (2) rotates, the connecting pipe (5) moves in the guide groove (607), driving the connecting support plate (501) to rotate to the positioning groove (6071) at the rear end of the guide groove (607), and the secondary positioning of the reaction chamber (2) is completed through the positioning of the connecting pipe (5).

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