WO2021068483A1

WO2021068483A1 - Mechanical product forming and proofing 3d printer

Info

Publication number: WO2021068483A1
Application number: PCT/CN2020/086942
Authority: WO
Inventors: 裴未迟; 王璐; 张鑫韬; 刘乃江; 苏立业
Original assignee: 华北理工大学
Priority date: 2019-10-12
Filing date: 2020-04-26
Publication date: 2021-04-15
Also published as: ZA202103640B; CN110696360B; CN110696360A

Abstract

The present invention relates to a mechanical product forming and proofing 3D printer. A shell frame is installed at the lower end of a printer body. A placement port is provided in the upper side of the front end of the shell frame, and a discharging port is provided in the lower side of the front end of the shell frame. A rotating device is arranged between inner walls of the shell frame. A pushing device is arranged at the rear end of the shell frame. The present invention can solve the following problems of an existing 3D printer for forming and proofing a mechanical product: a, a printed 3D product needs to be left to stand for cooling, such that the printed product can be removed after being reinforced, and the 3D printer cannot conduct a continuous printing operation during operation thereof; and b, residue at a printing position needs to be manually removed, manual cleaning is not complete, and due to the fact that residue accumulates at the printing position, the printed product fails to meet the production requirements, thereby causing material waste.

Description

A 3D printer for mechanical product molding and proofing

Technical field

The invention relates to the technical field of 3D printing equipment, in particular to a 3D printer for mechanical product molding and proofing.

Background technique

3D printing is a kind of rapid prototyping technology. It is a technology that uses powdered metal or plastic and other bondable materials to construct objects by printing layer by layer based on digital model files. The machine is completed by a 3D printer. Product molding and proofing operations can save production costs.

However, the existing 3D printers used in the molding and proofing of mechanical products have the following problems: a. The finished 3D product needs to stand and cool down so that the printed product can be removed after being reinforced. The 3D printer cannot perform continuous printing operations during the operation. b. Manually remove the residue at the printing position, manual cleaning is not comprehensive, and the residue accumulated at the printing position causes the printed product to fail to meet the production requirements, resulting in material waste.

Regarding the technical problems in the use of 3D printers, people in related technical fields have made investigations and made adaptive improvements. For example, the Chinese invention patent with patent number 2018108213752 is a metal 3D printer, which enhances the rapid printing of metal materials. The functions of heating and cooling provide a guarantee for the printing operation. However, the problems of the 3D printers used in the molding and proofing of the existing mechanical products mentioned above are not mentioned.

Summary of the invention

In order to solve the above-mentioned problems, the present invention provides a 3D printer for forming and proofing mechanical products, which can solve the above-mentioned problems of the 3D printer used for forming and proofing mechanical products.

In order to achieve the above objectives, the present invention adopts the following technical solutions to achieve: a mechanical product molding and proofing 3D printer, including a printer body, the lower end of the printer body is installed with a housing frame, the front end of the housing frame is provided with a placement opening on the upper side of the housing frame A discharge port is provided on the lower side of the front end, a rotating device is provided between the inner walls of the housing frame, and a pushing device is provided at the rear end of the housing frame;

The rotating device includes an annular slideway mounted on the outer wall of the left end of the housing frame, the inner wall of the annular slideway is provided with a driving mechanism, the annular slideway is connected with an annular rotating plate through a sliding fit, and the annular rotating plate is uniform along its circumference A support mechanism is provided. The right end of the support mechanism is provided with a rotating column through a bearing, and a steering rod is arranged between the two rotating columns. The right end of the rotating column is slidably arranged on the auxiliary slide, and the auxiliary slide is installed on the outer wall of the housing frame , A locking mechanism is provided between the inner walls of the housing frame;

The pushing device includes a pushing hole opened on the rear side of the housing frame. A pushing frame is arranged in the pushing hole through a sliding fit. The front end of the pushing frame is provided with a rubber block, and the rear end of the pushing frame is connected with one end of the linkage rod through a pin. , The other end of the linkage rod is installed on the push rod through a pin shaft, the push rod is installed on the push cylinder, the push cylinder is fixed on the outer wall of the housing frame, and the front end of the housing frame is provided with a blocking mechanism;

The supporting mechanism includes a supporting column arranged on an annular rotating plate through a bearing, a supporting frame is installed on the supporting column, and the inner walls of the left and right ends of the supporting frame are symmetrically installed with abutting spring rods, and a locking spring is installed on the abutting spring rods. Guide frame, the front and rear ends of the locking guide frame are all arc structures;

The locking mechanism includes a locking bracket installed between the inner walls of the housing frame, a lifting cylinder is installed on the upper end of the locking bracket, a locking frame is installed on the lifting cylinder, and the upper end of the locking frame is provided with a groove for cooperating with the supporting frame , The upper sides of the left and right ends of the locking frame are symmetrically provided with adjusting grooves, the inner wall of the locking frame is equipped with a two-way cylinder, the front and back sides of the two-way cylinder are symmetrically provided with adjusting branches, and the adjusting branches are located in the adjusting grooves.

The driving mechanism includes fixed gears uniformly arranged on the inner wall of the annular slideway, the fixed gears are meshed with rotating gears, the rotating gears are installed on the output shaft of the driving motor, and the driving motor is installed on the annular rotating plate through the motor seat.

The lower end of the support frame is provided with a locking hole, the middle of the upper end of the support frame is provided with a guide slide, the support frame is slidably provided with a printing support plate, the printing support plate is in an I-shaped structure, and the lower end of the printing support plate is provided There is a guide slider that cooperates with the movement of the guide slide.

The adjusting branch chain includes an adjusting squeeze frame installed on a two-way cylinder, the adjusting squeeze frame is slidably arranged in the adjusting groove, the upper end of the adjusting squeeze frame is installed with a push plate through a spring rod, and the upper end of the locking frame is provided with a fixing hole A locking rod for inserting into the locking hole is arranged in the fixing hole through a spring, and a stepped-structure extrusion rod is arranged on the side wall of the adjusting extrusion frame, and the extrusion rod abuts against the locking rod.

The blocking mechanism includes a material conveying rack installed on the inner wall of the housing frame. A blocking hole is provided on the upper side of the rear end of the material conveying rack. A blocking block is provided in the blocking hole through a spring, and the lower end of the blocking block is against On the driving board, the driving board is slidably arranged on the inner wall of the housing frame, and the driving board is connected to the pushing frame.

The conveying rack is located at the discharge port, and the conveying rack has a downwardly inclined structure from back to front.

1. The present invention can solve the following problems of the existing 3D printers used in the molding and proofing of mechanical products. a. The printed 3D products need to be left to stand and cool so that the printed products can be removed after being reinforced. The 3D printer cannot perform continuity during operation. For the printing job, b needs to manually remove the residue at the printing position, which is not comprehensive manually, and the residue accumulated at the printing position causes the printed product to fail to meet the production requirements, resulting in waste of materials.

2. The rotating device designed by the present invention controls multiple printing support plates for position conversion during operation, ensuring continuous and uninterrupted molding and proofing of mechanical products, and can provide sufficient cooling for printed products by rotating operations Time guarantees the overall stability of the printed product.

3. The present invention adopts a replaceable printing support plate for printing products during operation, and adopts a locking mechanism to cooperate with the support frame during operation to ensure the accuracy of the position of the printing support plate in the printing operation and the stability of the operation , The push device pushes the printed product out of the shell frame.

Description of the drawings

The present invention will be further described below in conjunction with the drawings and embodiments.

Figure 1 is a schematic diagram of the structure of the present invention;

Figure 2 is a cross-sectional view of the present invention;

Figure 3 is a cross-sectional view taken along line A-A of Figure 2 of the present invention;

Figure 4 is a schematic diagram of the structure between the housing frame and the rotating device of the present invention;

Fig. 5 is a partial enlarged view of the I-direction of Fig. 1 of the present invention.

Detailed ways

The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways defined and covered by the claims.

As shown in Figures 1 to 5, a mechanical product forming and proofing 3D printer includes a printer body 1. A housing frame 2 is installed at the lower end of the printer body 1, and a placement opening is provided on the upper side of the front end of the housing frame 2. A discharge port is provided on the lower side of the front end, a rotating device 3 is provided between the inner walls of the housing frame 2, and a pushing device 4 is provided at the rear end of the housing frame 2;

The rotating device 3 includes an annular slide 31 installed on the outer wall of the left end of the housing frame 2. A drive mechanism 32 is provided on the inner wall of the annular slide 31, and an annular rotating plate 33 is connected to the annular slide 31 by a sliding fit. The rotating plate 33 is evenly provided with a supporting mechanism 34 along its circumferential direction. The right end of the supporting mechanism 34 is provided with a rotating column 35 through a bearing. A steering rod 36 is arranged between the two rotating columns 35, and the right end of the rotating column 35 is slidably arranged. On the auxiliary slide 37, the auxiliary slide 37 is installed on the outer wall of the housing frame 2, and a locking mechanism 38 is provided between the inner walls of the housing frame 2;

The driving mechanism 32 includes a fixed gear 321 uniformly arranged on the inner wall of the annular slide 31. The fixed gear 321 is meshed with a rotating gear 322. The rotating gear 322 is installed on the output shaft of the driving motor 323, and the driving motor 323 is installed through a motor base. The ring-shaped rotating plate 33 performs a rotating operation on the ring-shaped rotating plate 33.

The driving motor 323 controls the rotation of the ring-shaped rotating plate 33 through gear transmission. The ring-shaped rotating plate 33 drives the support frame 342 to rotate synchronously during the rotation, and the steering rod 36 can ensure the orientation of the support frame 342 during the rotation operation. It is always consistent to ensure that the printed product on the printing support plate 345 will not be damaged.

The supporting mechanism 34 includes a supporting column 341 arranged on the annular rotating plate 33 through a bearing. A supporting frame 342 is installed on the supporting column 341. The inner wall of the left and right ends of the supporting frame 342 is symmetrically installed with a spring rod 343 to resist A locking guide frame 344 is installed on the spring rod 343. The front and rear ends of the locking guide frame 344 are both arc structures, and the locking guide frame 344 serves as a guide for the printing support plate 345.

The support frame 342 is provided with a locking hole at the lower end, a guide slide is provided at the middle of the upper end of the support frame 342, a printing support plate 345 is slidably provided on the support frame 342, and the printing support plate 345 is in an I-shaped structure and prints The lower end of the support plate 345 is provided with a guide slider that cooperates with the movement of the guide slide.

During operation, the printing support plate 345 is inserted into the support frame 342 through the placement opening, and the guide slider is inserted into the guide slide. The printing support plate 345 presses against the spring rod 343 to control the locking guide frame 344 during the insertion operation. The two sides of the printing support plate 345 are pressed against and locked.

The locking mechanism 38 includes a locking bracket 381 installed between the inner walls of the housing frame 2. A lifting cylinder 382 is installed on the upper end of the locking bracket 381, a locking frame 383 is installed on the lifting cylinder 382, and the upper end of the locking frame 383 is opened. There are grooves for use with the support frame 342. The upper and lower ends of the locking frame 383 are symmetrically provided with adjustment grooves. The inner wall of the locking frame 383 is equipped with a two-way cylinder 384. The two-way cylinder 384 is symmetrically provided with adjustment on the front and rear sides. The branch chain, the regulating branch chain is located in the regulating groove.

The adjusting branch chain includes an adjusting extrusion frame 385 installed on the bidirectional air cylinder 384, the adjusting extrusion frame 385 is slidably arranged in the adjusting groove, the upper end of the adjusting extrusion frame 385 is installed with a push plate 386 through a spring rod, and the frame is locked. A fixing hole is opened at the upper end of the 383. A locking rod 387 for inserting into the locking hole is provided in the fixing hole through a spring. The side wall of the adjusting and squeezing frame 385 is provided with a stepped-structure extrusion rod 388, the extrusion rod 388 Leans against the locking rod 387.

The annular rotating plate 33 controls the printing support plate 345 to rotate to a designated working position, and the lifting cylinder 382 controls the locking frame 383 to move upward to a suitable working position, so that the supporting frame 342 is adjusted to move into the groove of the locking frame 383. The bidirectional air cylinder 384 drives the adjustment squeeze frame 385 to squeeze the guide slider. During the adjustment operation, the printing support plate 345 is adjusted to the working position to ensure the accuracy of the placement position of the printing support plate 345. When the printing support plate 345 is adjusted to While working at the working position, the squeezing lever 388 synchronously inserts the locking lever 387 into the locking hole to ensure the stability of the printing support plate 345 during the printing operation.

The pushing device 4 includes a pushing hole opened on the rear side of the housing frame 2. A pushing frame 41 is provided in the pushing hole through a sliding fit. The front end of the pushing frame 41 is provided with a rubber block 42, and the rear end of the pushing frame 41 passes through a pin. Connected to one end of the linkage rod 43, the other end of the linkage rod 43 is mounted on the push rod 44 through a pin, the push rod 44 is mounted on the push cylinder 45, and the push cylinder 45 is fixed on the outer wall of the housing frame 2. A blocking mechanism 46 is provided at the front end;

The blocking mechanism 46 includes a material conveying rack 461 installed on the inner wall of the housing frame 2. A blocking hole is provided on the upper side of the rear end of the material conveying rack 461, and a blocking block 462 is provided in the blocking hole through a spring. The lower end of the block 462 abuts on the drive plate 463, the drive plate 463 is slidably arranged on the inner wall of the housing frame 2, and the drive plate 463 is connected to the push frame 41.

The conveying rack 461 is located at the discharge port, and the conveying rack 461 has a downwardly inclined structure from back to front.

The circular rotating plate 33 controls the printing support plate 345 to move down to a suitable position, and the push cylinder 45 starts to work. The push rod 44 and the linkage rod 43 cooperate with each other to drive the push frame 41 to perform forward and backward telescopic operations. The push frame 41 is first in motion. The drive plate 463 is controlled to squeeze the block block 462. After being squeezed, the block block 462 is ejected upwards and abuts against the outer wall of the support frame 342. The push frame 41 continues to move through the rubber block 42 to push out the printing support plate 345, and is The pushed out printing support plate 345 is discharged to the outside of the housing frame 2 through the feeding rack 461.

in working;

In the first step, the driving mechanism 32 controls the support frame 342 to rotate;

The second step is to insert the printing support plate 345 into the support frame 342 through the placement opening;

In the third step, the printing support plate 345 is fixed by the locking mechanism 38 at the printing position, and the 3D printer starts to work;

The fourth step is to push the printed product out through the push device 4.

The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the industry should understand that the present invention is not limited by the above-mentioned embodiments. The above-mentioned embodiments and the description in the specification only illustrate the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will also There are various changes and improvements, and these changes and improvements fall within the scope of the claimed invention. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

A mechanical product forming and proofing 3D printer, comprising a printer body (1), characterized in that: a housing frame (2) is installed at the lower end of the printer body (1), a placement opening is opened on the upper side of the front end of the housing frame (2), and the housing A discharge port is provided on the lower side of the front end of the frame (2), a rotating device (3) is provided between the inner walls of the housing frame (2), and a pushing device (4) is provided at the rear end of the housing frame (2);

The rotating device (3) includes an annular slide (31) installed on the outer wall of the left end of the housing frame (2), the inner wall of the annular slide (31) is provided with a driving mechanism (32), on the annular slide (31) The annular rotating plate (33) is connected by a sliding fit. The annular rotating plate (33) is evenly provided with a supporting mechanism (34) along its circumference, and the right end of the supporting mechanism (34) is provided with a rotating column (35) through a bearing. , A steering rod (36) is arranged between the two rotating columns (35), the right end of the rotating column (35) is slidably arranged on the auxiliary slideway (37), and the auxiliary slideway (37) is installed on the housing frame (2) On the outer wall of the housing frame (2), a locking mechanism (38) is provided between the inner walls of the housing frame (2);

The pushing device (4) includes a pushing hole opened on the rear side of the housing frame (2), a pushing frame (41) is provided in the pushing hole through a sliding fit, and the front end of the pushing frame (41) is provided with a rubber block (42) , The rear end of the push frame (41) is connected to one end of the linkage rod (43) through a pin, the other end of the linkage rod (43) is mounted on the push rod (44) through a pin, and the push rod (44) is installed on the push rod (44). On the air cylinder (45), the pushing air cylinder (45) is fixed on the outer wall of the housing frame (2), and the front end of the housing frame (2) is provided with a blocking mechanism (46);

The supporting mechanism (34) includes a supporting column (341) arranged on the annular rotating plate (33) through a bearing, a supporting frame (342) is installed on the supporting column (341), and inner walls of the left and right ends of the supporting frame (342) A compression spring rod (343) is installed symmetrically on the top, a locking guide frame (344) is installed on the compression spring rod (343), and the front and rear ends of the locking guide frame (344) are both arc structures;

The locking mechanism (38) includes a locking bracket (381) installed between the inner walls of the housing frame (2), a lifting cylinder (382) is installed on the upper end of the locking bracket (381), and a lifting cylinder (382) is installed on the lifting cylinder (382). The upper end of the locking frame (383) is provided with grooves for cooperating with the supporting frame (342), the upper side of the left and right ends of the locking frame (383) are symmetrically provided with adjusting grooves, and the locking frame ( A bidirectional air cylinder (384) is installed on the inner wall of the 383). The front and rear sides of the bidirectional air cylinder (384) are symmetrically provided with adjusting branch chains, and the adjusting branch chains are located in the adjusting groove.
The mechanical product molding and proofing 3D printer according to claim 1, characterized in that: the driving mechanism (32) includes fixed gears (321) uniformly arranged on the inner wall of the annular slide (31), and the fixed gears (321) ) Is meshed with a rotating gear (322), the rotating gear (322) is installed on the output shaft of the driving motor (323), and the driving motor (323) is installed on the annular rotating plate (33) through the motor seat.
The mechanical product molding and proofing 3D printer according to claim 1, characterized in that: the lower end of the support frame (342) is provided with a locking hole, and the middle of the upper end of the support frame (342) is provided with a guide slide, The support frame (342) is slidably provided with a printing support plate (345), the printing support plate (345) has an I-shaped structure, and the lower end of the printing support plate (345) is provided with a guiding slider that cooperates with the movement of the guiding slide .
The mechanical product molding and proofing 3D printer according to claim 1, characterized in that: the adjusting branch chain comprises an adjusting extrusion frame (385) installed on a bidirectional cylinder (384), and an adjusting extrusion frame (385) The upper end of the adjusting squeeze frame (385) is installed with a push plate (386) through a spring rod, the upper end of the locking frame (383) is provided with a fixing hole, and the fixing hole is provided with a spring for inserting and locking The locking rod (387) in the hole, the side wall of the adjusting squeeze frame (385) is provided with an squeezing rod (388) with a stepped structure, and the squeezing rod (388) abuts on the locking rod (387) .
The mechanical product molding and proofing 3D printer according to claim 1, characterized in that: the blocking mechanism (46) comprises a feeding rack (461) installed on the inner wall of the housing frame (2), and the feeding rack ( 461) is provided with a block hole on the upper side of the rear end, a block block (462) is provided in the block hole through a spring, and the lower end of the block block (462) abuts against the drive plate (463), the drive plate (463) ) Is slidably arranged on the inner wall of the housing frame (2), and the driving plate (463) is connected to the pushing frame (41).
The mechanical product molding and proofing 3D printer according to claim 5, characterized in that: the conveying rack (461) is located at the discharge port, and the conveying rack (461) has a downwardly inclined structure from back to front. .