Hardener smearing device for 3D printing piece processing

Abstract

The invention discloses a hardening agent smearing device for 3D printing piece processing, which comprises a spherical box body, round mounting blocks are embedded in the top and the bottom of the spherical box body, a rotating shaft I is rotatably connected to the round mounting block on the lower side, the top end of the rotating shaft I is connected with a round table for placing a 3D printing piece, and a motor is mounted at the bottom of the spherical box body. An output shaft of the motor is connected with the rotating shaft I. The circular truncated cone is provided with a clamp used for clamping a 3D printing piece, an arc-shaped guide rail is connected between the right sides of the upper and lower circular mounting blocks, an upper sliding rod and a lower sliding rod are slidably connected into the arc-shaped guide rail, and the sliding rods are connected with sprayers. The 3D printing piece can be clamped and fixed to the circular truncated cone through the clamp, the hardening agent can be sprayed to the surface of the 3D printing piece through the spray head, the rotating shaft I can be driven by the motor to drive the circular truncated cone to rotate, and therefore the 3D printing piece can rotate to ensure that the hardening agent is evenly sprayed to the surface of the 3D printing piece; and the hardening agent on the surface of the 3D printing piece can be flatly smeared through rotation of the roller brush.

Description

Technical Field

[0001] The present invention relates to the technical field of 3D printed parts processing, and in particular to a hardener coating device for 3D printed parts processing. Background Art

[0002] 3D printing (3DP) is a type of rapid prototyping technology, also known as additive manufacturing. It is a technology that uses digital model files as the basis, and uses powdered metal or plastic and other bondable materials to construct objects by printing layer by layer. 3D printing is usually achieved using a digital technology material printer. In order to make the 3D printed parts harder and easier to polish later, a hardener needs to be applied to the surface of the 3D printed parts. Currently, the hardener is generally applied to the surface of the 3D printed parts by hand with a brush, which is inefficient and labor-intensive. In addition, since the shapes of 3D printed parts are generally irregular, it is inconvenient for a person to hold the 3D printed part in one hand to fix it and use a brush in the other hand to apply the hardener. Summary of the invention

[0003] The purpose of the present invention is to provide a hardener coating device for 3D printed parts processing, which can not only spray the hardener evenly onto the surface of the 3D printed part, but also coat the hardener on the surface of the 3D printed part evenly, so as to solve the problems raised in the above background technology.

[0004] A hardener coating device for 3D printed parts processing comprises a spherical box body, legs are installed at intervals along the circumferential direction at the bottom of the spherical box body, a take-in and put-out opening for taking and putting 3D printed parts is opened on the front side of the spherical box body, a box door for blocking the take-in and put-out opening is slidably connected to the front side of the spherical box body, circular mounting blocks are embeddedly installed on the top and bottom of the spherical box body, a rotating shaft I is rotatably connected to the lower circular mounting block, a round table for placing 3D printed parts is connected to the top of the rotating shaft I, a motor is installed at the bottom of the spherical box body, the output shaft of the motor is connected to the rotating shaft I, a clamp for clamping the 3D printed parts is arranged on the round table, and an arc guide rail is connected between the right sides of the upper and lower circular mounting blocks An upper and lower sliding rod is slidably connected in the arc guide rail, a nozzle is connected to the sliding rod, a connecting rod is connected between the two nozzles, a hose is embedded on the top right side of the spherical box, the hose is connected to the two nozzles, a push frame is connected to the lower part of the rotating shaft I, the pushing frame is located on the outside of the arc guide rail, the pushing frame can rotate to contact the upper sliding rod and push the upper sliding rod to move upward, a smearing mechanism is provided between the two circular mounting blocks, the smearing mechanism includes two front and rear arc mounting plates connected between the two circular mounting blocks, the arc mounting plate is located on the inner side of the pushing frame, a roller brush is rotatably connected to the arc mounting plate through the rotating shaft II, and a gear set is connected between the rotating shaft II and the rotating shaft I.

[0005] Preferably, the clamp includes a slider and a clamping block, the top of the circular table is slidably connected with four sliders at circumferential intervals, the top of the slider is connected with a clamping block, a spring is connected between the slider and the circular table, and a pushing assembly is provided on the circular table for pushing the four sliders away from each other.

[0006] Preferably, the pushing assembly includes a rotating ring rotatably connected to the table, four pushing rods are connected to the rotating ring at circumferential intervals, the pushing rods extend out of the table and are slidably connected to the table, a pushing block is connected to the pushing rod, a wedge block I is connected to the bottom of the slider, and the wedge block I is in contact with the push block adjacent to it.

[0007] Preferably, the clamp further comprises a rubber block, and the clamping portion of the clamping block is connected to the rubber block.

[0008] Preferably, the pushing frame includes a circular disc connected to the lower part of the rotating shaft I, the circular disc is rotatably connected to the circular mounting block on the lower side, two groups of arc-shaped connecting plates are connected to the upper side at intervals along the circumferential direction of the circular disc, the top of each group of arc-shaped connecting plates is connected to an arc-shaped connecting plate, and the top of the arc-shaped connecting plate is connected to two wedge-shaped blocks II, and the wedge-shaped block II can rotate to contact the upper sliding rod and push the upper sliding rod to move upward.

[0009] Preferably, a pressing mechanism for pressing and fixing the 3D printed part on the round table is provided on the top of the spherical box body, and the pressing mechanism includes an electric push rod installed on the top of the spherical box body, the telescopic rod of the electric push rod passes through the circular mounting block on the upper side, and the bottom of the telescopic rod of the electric push rod is connected to a lifting block, and the lifting block is rotatably connected to a rubber pressing block through a rotating shaft III.

[0010] Preferably, the upper part of the rotating shaft I is rotatably connected to a collecting plate, and the collecting plate is rotatably connected to the rotating shaft II. The top rear side of the collecting plate is connected to an arc-shaped baffle plate, which is located on the inner side of the arc-shaped mounting plate and is fixedly mounted on the arc-shaped mounting plate by a mounting rod.

[0011] Preferably, a connecting rod is connected to the telescopic rod of the electric push rod, a scraper frame is connected to the bottom of the connecting rod, and the scraper frame contacts the inner wall of the arc-shaped baffle.

[0012] The beneficial effects of the present invention are:

[0013] 1. The 3D printed part can be clamped and fixed on the round table by a clamp, the hardener can be sprayed on the surface of the 3D printed part by a nozzle, and the rotating shaft I can be driven by a motor to drive the round table to rotate, so that the 3D printed part can be rotated to ensure that the hardener is evenly sprayed on its surface, and the hardener on the surface of the 3D printed part can be evenly smeared by the rotation of the roller brush. In this way, the present invention can achieve the effect of evenly spraying the hardener on the surface of the 3D printed part and evenly smearing the hardener on the surface of the 3D printed part, thereby improving the processing efficiency of the 3D printed part and reducing the labor intensity.

[0014] 2. Through the cooperation of the push frame, the sliding rod and the connecting rod, the nozzle can be moved up and down to increase the spraying range of the hardener, so that the hardener can be sprayed more evenly on the surface of the 3D printed part.

[0015] 3. The electric push rod can drive the rubber pressure block to move down to press the 3D printed part and fix it on the round table to improve the stability of the 3D printed part.

[0016] 4. The arc-shaped baffle can block the hardener thrown from the roller brush to prevent the hardener from splashing everywhere. The scraper rack can scrape off the hardener attached to the inner wall of the arc-shaped baffle. The collecting tray can collect the hardener sliding down from the arc-shaped baffle, so that the hardener can be recovered to reduce the waste of the hardener. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0018] Figure 2 It is a partial three-dimensional structural schematic diagram of the present invention.

[0019] Figure 3 It is a schematic diagram of the three-dimensional structure of the coating mechanism of the present invention.

[0020] Figure 4 It is a schematic diagram of the installation of the clamp of the present invention.

[0021] Figure 5 It is a schematic diagram of the three-dimensional structure of the clamp of the present invention.

[0022] Figure 6 It is a schematic diagram of the three-dimensional structure of the pushing frame of the present invention.

[0023] Figure 7 It is a schematic diagram of the three-dimensional structure of the push frame and the smearing mechanism of the present invention.

[0024] Figure 8 It is a three-dimensional structural schematic diagram of the pressing mechanism of the present invention.

[0025] Fig. 9 It is a schematic diagram of the three-dimensional structure of the collecting plate, the arc-shaped baffle plate and the mounting rod of the present invention.

[0026] Fig.10 It is a three-dimensional structural schematic diagram of the scraper frame and the connecting rod of the present invention.

[0027] The serial numbers in the figure are: 1-leg, 2-spherical box, 21-take-and-release port, 22-circular mounting block, 3-box door, 4-rotating shaft Ⅰ, 5-round table, 6-motor, 7-clamp, 71-slider, 72-clamp block, 73-spring, 74-rubber block, 75-rotating ring, 76-wedge block Ⅰ, 77-push rod, 78-push block, 8-arc guide rail, 9-sliding rod, 10-sprinkler, 11-connecting rod, 12-hose, 13-push frame, 1 31-disc, 132-arc connecting plate, 133-arc connecting plate, 134-wedge block II, 141-arc mounting plate, 142-rotating shaft II, 143-roller brush, 144-gear set, 151-electric push rod, 152-lifting block, 153-rotating shaft III, 154-rubber pressure block, 16-collecting plate, 17-arc baffle, 18-mounting rod, 19-scraper frame, 191-arc scraper, 192-connecting block, 20-connecting rod. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] Embodiment: A hardener coating device for 3D printed parts processing, see Figure 1-Figure 7, comprising a spherical box body 2, four legs 1 are installed at intervals along the circumferential direction at the bottom of the spherical box body 2, a take-in and put-out port 21 for taking and putting 3D printed parts is opened on the front side of the spherical box body 2, and a box door 3 for blocking the take-in and put-out port 21 is slidably connected to the front side of the spherical box body 2 through an annular slide rail, and circular mounting blocks 22 are embedded and installed on the top and bottom of the spherical box body 2, and a rotating shaft Ⅰ4 is rotatably connected to the circular mounting block 22 on the lower side, and a round table 5 for placing 3D printed parts is connected to the top of the rotating shaft Ⅰ4, and a motor 6 is installed at the bottom of the spherical box body 2, and the output shaft of the motor 6 is connected to the rotating shaft Ⅰ4, and a fixture 7 for clamping the 3D printed parts is provided on the round table 5, and the fixture 7 includes a slider 71 and a clamping block 72, and four sliders 7 are slidably connected to the top of the round table 5 at intervals along the circumferential direction. 1. A clamping block 72 is connected to the top of the slider 71, a spring 73 is connected between the slider 71 and the round table 5, a rubber block 74 is connected to the clamping part of the clamping block 72, and the rubber block 74 can prevent the clamping block 72 from directly extruding the 3D printed part, thereby protecting the 3D printed part. The round table 5 is provided with a pushing component for pushing the four sliders 71 away from each other, and the pushing component includes a rotating ring 75 rotatably connected to the round table 5, and four pushing rods 77 are connected to the rotating ring 75 at intervals along the circumferential direction. The pushing rod 77 extends out of the round table 5 and is slidably connected to the round table 5. A pushing block 78 is connected to the pushing rod 77. The bottom of the slider 71 is connected to a wedge block I 76, and the left and right sides of the wedge block I 76 are inclined surfaces. The wedge block I 76 and the adjacent pushing block 78 are connected to the wedge block I 76. 8, an arc guide rail 8 is connected between the right sides of the upper and lower circular mounting blocks 22, and an upper and lower sliding rod 9 is slidably connected in the arc guide rail 8, a nozzle 10 is connected to the sliding rod 9, and a connecting rod 11 is connected between the two nozzles 10, a hose 12 is embedded on the right side of the top of the spherical box 2, and the hose 12 is connected to the two nozzles 10, and a push frame 13 is connected to the lower part of the rotating shaft Ⅰ4, and the push frame 13 is located on the outer side of the arc guide rail 8. The push frame 13 includes a disc 131 connected to the lower part of the rotating shaft Ⅰ4, and the disc 131 is rotatably connected to the circular mounting block 22 on the lower side. Two groups of arc connecting plates 132 are connected to the disc 131 at intervals along the circumferential direction, and two arc connecting plates 132 are grouped together, and the top of each group of arc connecting plates 132 is connected to an arc connecting plate 133, the top of the arc-shaped connecting plate 133 is connected to two wedge-shaped blocks II 134, and the left and right sides of the wedge-shaped block II 134 are both inclined surfaces. The wedge-shaped block II 134 can be rotated to contact the upper sliding rod 9. A smearing mechanism is provided between the two circular mounting blocks 22, and the smearing mechanism includes two front and rear arc-shaped mounting plates 141 connected between the two circular mounting blocks 22. The arc-shaped mounting plate 141 is located on the inner side of the pushing frame 13, and a roller brush 143 is rotatably connected to the arc-shaped mounting plate 141 through a rotating shaft II 142. A gear set 144 is connected between the rotating shaft II 142 and the rotating shaft I 4. The gear set 144 consists of three gears, and the three gears are respectively connected to the two rotating shafts II 142 and the rotating shaft I 4. The gears on the rotating shaft II 142 are meshed with the gears on the rotating shaft I 4.

[0030] The push rod 77 is moved to rotate the rotating ring 75, so that the four push rods 77 can drive the four push blocks 78 to rotate synchronously, and then the four wedge blocks I 76 can be pushed away from each other, so that the four sliders 71 drive the four clamping blocks 72 to move away from each other, and the spring 73 is compressed accordingly, so that the 3D printed part that needs to be coated with hardener can be placed on the round table 5. The push rod 77 is released, and under the reset action of the spring 73, the four sliders 71 can be pushed to move the four clamping blocks 72 and the four wedge blocks I 76 closer to each other. The four clamping blocks 72 approaching each other can clamp and fix the 3D printed part on the round table 5, and the four wedge blocks I 76 approaching each other can push the push block 78 to rotate and reset with the push rod 77 and the rotating ring 75. The hose 12 is connected to an infusion device, and the hardener can be transported to the nozzle 10 through the hose 12 through the infusion device. The hardener can be sprayed on the surface of the 3D printed part through the nozzle 10. The motor 6 can drive the rotating shaft Ⅰ4 to drive the round table 5 to rotate, so that the 3D printed part can be rotated to ensure that the hardener is evenly sprayed on its surface; the rotating shaft Ⅰ4 rotates and drives the entire push frame 13 to rotate. When the wedge block Ⅱ134 on the push frame 13 rotates to contact the upper sliding rod 9, the wedge block Ⅱ134 continues to rotate to drive the upper sliding rod 9 to move up with the upper nozzle 10. The upper nozzle 10 moves up and drives the lower nozzle 10 to move up through the connecting rod 11. After the wedge block II 134 rotates to disengage from the upper sliding rod 9, the nozzle 10 moves downward and resets under the action of gravity. The up and down movement of the nozzle 10 can increase the spraying range of the hardener, so that the hardener can be sprayed more evenly on the surface of the 3D printed part. When the shaft I 4 rotates, the gear set 144 can drive the shaft II 142 to rotate, so that the roller brush 143 can rotate to evenly apply the hardener on the surface of the 3D printed part. In this way, the device can achieve the effect of evenly spraying the hardener on the surface of the 3D printed part and evenly applying the hardener on the surface of the 3D printed part, thereby improving the processing efficiency of the 3D printed part and reducing labor intensity.

[0031] See also Figure 8 A pressing mechanism for pressing and fixing the 3D printed part on the truncated table 5 is provided on the top of the spherical box 2. The pressing mechanism includes an electric push rod 151 installed on the top of the spherical box 2. The telescopic rod of the electric push rod 151 penetrates the circular mounting block 22 on the upper side. The bottom of the telescopic rod of the electric push rod 151 is connected to a lifting block 152. The lifting block 152 is rotatably connected to a rubber pressing block 154 through a rotating shaft III 153.

[0032] The telescopic rod of the electric push rod 151 is controlled to extend to push the lifting block 152 with the rubber pressing block 154 to move downward to contact the 3D printed part, so that the 3D printed part can be pressed and fixed on the round table 5 to improve the stability of the fixation of the 3D printed part. When the 3D printed part rotates, the rubber pressing block 154 is driven to rotate by friction. The telescopic rod of the electric push rod 151 is controlled to shorten so that the lifting block 152 drives the rubber pressing block 154 to move upward to release the 3D printed part.

[0033] See also Fig. 9 The upper part of the rotating shaft Ⅰ4 is rotatably connected with a collecting plate 16, and the collecting plate 16 is rotatably connected with the rotating shaft Ⅱ142. The top rear side of the collecting plate 16 is connected with an arc-shaped baffle plate 17, and the arc-shaped baffle plate 17 is located on the inner side of the arc-shaped mounting plate 141. The arc-shaped baffle plate 17 is fixedly mounted on the arc-shaped mounting plate 141 through a mounting rod 18.

[0034] The arc-shaped baffle 17 can block the hardener thrown from the roller brush 143 to prevent the hardener from splashing everywhere, and the collecting tray 16 can collect the hardener sliding down from the arc-shaped baffle 17, so that the hardener can be recovered to reduce the waste of the hardener.

[0035] See also Fig.10 The telescopic rod of the electric push rod 151 is connected to a connecting rod 20, and the bottom of the connecting rod 20 is connected to a scraper frame 19. The scraper frame 19 consists of an arc scraper 191 and a connecting block 192. There are six arc scrapers 191 arranged from top to bottom. Four connecting blocks 192 are connected axially between two adjacent arc scrapers 191. The uppermost arc scraper 191 is connected to the bottom of the connecting rod 20, and the arc scraper 191 contacts the inner wall of the arc baffle 17.

[0036] When the telescopic rod of the electric push rod 151 is extended, the entire scraper frame 19 is pushed downward through the connecting rod 20, so that the hardener on the inner wall of the arc-shaped baffle 17 is scraped off by the arc-shaped scraper 191 on the scraper frame 19, so that the hardener attached to the inner wall of the arc-shaped baffle 17 can be cleaned to avoid a large amount of hardener accumulating and staying on the inner wall of the arc-shaped baffle 17.

[0037] The above-mentioned embodiments only express the preferred implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for those skilled in the art, several modifications, improvements and substitutions can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention.

Claims

1. A hardener coating device for 3D printed parts processing, comprising a spherical box (2), the bottom of the spherical box (2) is provided with legs (1) spaced apart in the circumferential direction, the front side of the spherical box (2) is provided with a take-in and put-out opening (21) for taking in and putting in the 3D printed parts, the front side of the spherical box (2) is slidably connected with a box door (3) for blocking the take-in and put-out opening (21), the top and bottom of the spherical box (2) are both embedded with circular mounting blocks (22), the lower circular mounting block (22) is rotatably connected with a rotating shaft I (4), the top end of the rotating shaft I (4) is connected with a truncated table (5) for placing the 3D printed parts, the bottom of the spherical box (2) is provided with a motor (6), the output shaft of the motor (6) is connected with the rotating shaft I (4), and the characteristic is that: A fixture (7) for clamping a 3D printed part is provided on the round table (5), an arc guide rail (8) is connected between the right sides of the upper and lower circular mounting blocks (22), and the arc guide rail (8) is slidably connected with upper and lower sliding rods (9), a nozzle (10) is connected to the sliding rod (9), and a connecting rod (11) is connected between the two nozzles (10), a hose (12) is embedded on the right side of the top of the spherical box (2), and the hose (12) is connected to the two nozzles (10), and a push frame (13) is connected to the lower part of the rotating shaft I (4), and the push frame (13) is located on the arc guide rail. The push frame (13) is rotated to contact the upper sliding rod (9) and push the upper sliding rod (9) upward. A smearing mechanism is provided between the two circular mounting blocks (22). The smearing mechanism includes two front and rear arc-shaped mounting plates (141) connected between the two circular mounting blocks (22). The arc-shaped mounting plates (141) are located on the inner side of the push frame (13). A roller brush (143) is rotatably connected to the arc-shaped mounting plates (141) via a rotating shaft II (142). A gear set (144) is connected between the rotating shaft II (142) and the rotating shaft I (4).

2. A hardener coating device for 3D printed parts processing according to claim 1, characterized in that: The clamp (7) comprises a slider (71) and a clamping block (72); four sliders (71) are slidably connected to the top of the round table (5) at intervals along the circumferential direction; the top of the slider (71) is connected to the clamping block (72); a spring (73) is connected between the slider (71) and the round table (5); and a pushing component for pushing the four sliders (71) away from each other is provided on the round table (5).

3. A hardener coating device for 3D printed parts processing according to claim 2, characterized in that: The pushing assembly comprises a rotating ring (75) rotatably connected inside the truncated table (5), four pushing rods (77) are connected to the rotating ring (75) at intervals along the circumferential direction, the pushing rods (77) extend out of the truncated table (5) and are slidably connected to the truncated table (5), a pushing block (78) is connected to the pushing rod (77), a wedge block I (76) is connected to the bottom of the slider (71), and the wedge block I (76) is in contact with the pushing block (78) adjacent to it.

4. The hardener coating device for 3D printed parts processing according to claim 2, characterized in that: The clamp (7) also includes a rubber block (74), and the rubber block (74) is connected to the clamping portion of the clamping block (72).

5. The hardener coating device for 3D printed parts processing according to claim 1, characterized in that: The pushing frame (13) comprises a disc (131) connected to the lower part of the rotating shaft I (4), the disc (131) is rotatably connected to the circular mounting block (22) at the lower side, two groups of arc-shaped connecting plates (132) are connected to the disc (131) at intervals along the circumferential direction, the top of each group of arc-shaped connecting plates (132) is connected to an arc-shaped connecting plate (133), and the top of the arc-shaped connecting plate (133) is connected to two wedge-shaped blocks II (134), and the wedge-shaped block II (134) can rotate to contact the upper sliding rod (9) and push the upper sliding rod (9) to move upward.

6. The hardener coating device for 3D printed parts processing according to claim 1, characterized in that: A pressing mechanism for pressing and fixing the 3D printed part on the round table (5) is provided on the top of the spherical box (2). The pressing mechanism comprises an electric push rod (151) installed on the top of the spherical box (2). The telescopic rod of the electric push rod (151) penetrates the circular mounting block (22) on the upper side. The bottom of the telescopic rod of the electric push rod (151) is connected to a lifting block (152). The lifting block (152) is rotatably connected to a rubber pressing block (154) via a rotating shaft III (153).

7. A hardener coating device for 3D printed parts processing according to claim 6, characterized in that: The upper part of the rotating shaft I (4) is rotatably connected to a collecting plate (16), and the collecting plate (16) is rotatably connected to the rotating shaft II (142). The top rear side of the collecting plate (16) is connected to an arc-shaped baffle plate (17), and the arc-shaped baffle plate (17) is located on the inner side of the arc-shaped mounting plate (141). The arc-shaped baffle plate (17) is fixedly mounted on the arc-shaped mounting plate (141) through a mounting rod (18).

8. The hardener coating device for 3D printed parts processing according to claim 7, characterized in that: The telescopic rod of the electric push rod (151) is connected with a connecting rod (20), the bottom of the connecting rod (20) is connected with a scraper frame (19), and the scraper frame (19) contacts the inner wall of the arc-shaped baffle plate (17).

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