Powder feeding device of additive manufacturing equipment

Abstract

The utility model discloses a powder feeding device of additive manufacturing equipment, which belongs to the technical field of additive manufacturing and comprises a powder storage barrel, a powder feeding component is mounted above the powder storage barrel, a mounting frame component is fixedly mounted on the outer side of the powder storage barrel, and a baffle component is fixedly mounted below the powder storage barrel. By arranging the position adjusting lifting device, a worker can adjust the left-right position and height of discharging to a certain degree through cooperation of a screw rod, a lead screw and other structures when needed, so that the working requirements under different conditions are better met, and the working capacity of the device is improved; by arranging the auxiliary stirring device, a worker can stir powder in the powder storage barrel through cooperation of the motor, the stirring blades and other structures when needed, so that the possibility that the powder in the powder storage barrel is coagulated due to extrusion and other reasons is reduced, normal operation of work is guaranteed, and the working efficiency is improved. And the practicability of the device is improved.

Description

Technical Field

[0001] This utility model belongs to the field of additive manufacturing technology, and specifically relates to a powder feeding device for additive manufacturing equipment. Background Technology

[0002] Additive manufacturing, commonly known as 3D printing, is a manufacturing technology that builds physical objects by designing digital models and adding layers one by one.

[0003] Chinese Patent Application No. 202520151535.2 discloses an adjustable powder feeding device for laser additive manufacturing, including a powder storage tank. A fixing block is fixed in the middle of the lower surface of the powder storage tank. A retaining hole is opened in the middle of the fixing block, penetrating the upper and lower surfaces of the middle of the fixing block. A second through hole is opened in the middle of the lower end of the powder storage tank corresponding to the retaining hole. A baffle is slidably installed in the middle of the fixing block in the horizontal direction. A powder conveying pump is installed at the lower end of the first connecting cylinder. During use, it helps to adjust the powder feeding amount according to the usage requirements of external laser additive printing equipment. It can easily adjust the powder feeding amount of this powder feeding device to ensure the applicability of the powder feeding device and help ensure the effect of laser additive printing processing by external laser additive printing equipment, so as to facilitate the use of this powder feeding device.

[0004] 1. The aforementioned patent has the problem that it is inconvenient to adjust the left and right position and height of the discharge when needed, thereby reducing the working capacity of the device; 2. The aforementioned patent has the problem that the powder in the powder storage tank is prone to agglomeration due to compression and other reasons, thereby reducing the practicality of the device. Utility Model Content

[0005] To address the problems mentioned in the background section, this invention provides a powder feeding device for additive manufacturing equipment, characterized by high working capacity and strong practicality.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a powder feeding device for additive manufacturing equipment, comprising a powder storage bin, a powder feeding component installed above the powder storage bin, an installation frame component fixedly installed on the outside of the powder storage bin, a baffle component fixedly installed below the powder storage bin, a conveying component fixedly installed below the baffle component, an adjustment and lifting device fixedly installed on the bottom outside of the conveying component, and an auxiliary stirring device provided above the installation frame component.

[0007] Preferably, the adjusting and lifting device includes a fixed frame, a screw, a movable cylinder, a lifting assembly, a discharge pipe, and a conveying pipe. A fixed frame is fixedly installed on the outer bottom of the conveying assembly. A movable cylinder is provided on the inner side of the fixed frame and below the conveying assembly. A screw is installed on one side of the movable cylinder via a bearing. A conveying pipe is fixedly installed below the movable cylinder. A discharge pipe is provided on the outer side of the conveying pipe. The conveying pipe and the discharge pipe are connected by the lifting assembly.

[0008] Preferably, the adjusting and lifting device further includes a guide rod, and the guide rod is fixedly installed on the side of the moving cylinder away from the screw.

[0009] Preferably, the lifting assembly includes a support plate, a lifting plate, and a lead screw. The support plate is fixedly installed on the outside of the conveying pipe and above the discharge pipe. The lifting plate is fixedly installed on the outside of the discharge pipe. The lead screw is installed below the support plate and on the inside of one end of the lifting plate and one side of the discharge pipe via a bearing.

[0010] Preferably, the outer diameter of the conveying pipe is equal to the inner diameter of the discharge pipe.

[0011] Preferably, the auxiliary stirring device includes a fixed box, a first gear, a second gear, stirring blades, a rotating shaft, and a motor. The fixed box is fixedly installed on one side of the powder storage tank and above the mounting frame assembly. The motor is fixedly installed above the fixed box. Multiple first gears are fixedly installed on the outer side of the motor output end and inside the fixed box. Multiple rotating shafts are mounted on the edge of the fixed box near the powder storage tank via bearings. A second gear is fixedly installed on the side of the rotating shaft near the first gears. Multiple stirring blades are fixedly installed on the outer side of the rotating shaft and inside the powder storage tank.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model, by setting up an adjustment and lifting device, allows the operator to adjust the left and right position and height of the discharge material by means of the screw and lead screw structure when needed, thereby better meeting the work needs in different situations and improving the working capacity of the device.

[0014] 2. By setting up an auxiliary stirring device, this utility model enables the operator to stir the powder in the powder storage tank when needed through the cooperation of the motor and stirring blades, thereby reducing the possibility of powder clumping in the storage tank due to compression and other reasons, ensuring the normal operation of the work, and thus improving the practicality of the device. Attached Figure Description

[0015] Figure 1 This is a perspective view of the present utility model;

[0016] Figure 2 This is a three-dimensional sectional view of the present invention;

[0017] Figure 3 This is a three-dimensional sectional view of the adjusting and lifting device of this utility model;

[0018] Figure 4 This is a three-dimensional sectional view of the auxiliary stirring device of this utility model.

[0019] In the diagram: 1. Powder storage tank; 2. Mounting frame assembly; 3. Baffle assembly; 4. Conveying assembly; 5. Adjustment and lifting device; 51. Fixed frame; 52. Screw; 53. Moving cylinder; 54. Lifting assembly; 541. Support plate; 542. Lifting plate; 543. Lead screw; 55. Discharge pipe; 56. Conveying pipe; 57. Guide rod; 6. Auxiliary stirring device; 61. Fixed box; 62. First gear; 63. Second gear; 64. Stirring blade; 65. Rotating shaft; 66. Motor; 7. Powder feeding assembly. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0021] Please see Figure 1-4 The present invention provides the following technical solution: a powder feeding device for additive manufacturing equipment, including a powder storage tank 1, a powder feeding component 7 installed above the powder storage tank 1, an installation frame component 2 fixedly installed on the outside of the powder storage tank 1, a baffle component 3 fixedly installed below the powder storage tank 1, a conveying component 4 fixedly installed below the baffle component 3, an adjustment and lifting device 5 fixedly installed on the bottom outside of the conveying component 4, and an auxiliary stirring device 6 provided above the installation frame component 2.

[0022] Specifically, the adjustment and lifting device 5 includes a fixed frame 51, a screw 52, ​​a moving cylinder 53, a lifting assembly 54, a discharge pipe 55, and a conveying pipe 56. The fixed frame 51 is fixedly installed on the bottom outer side of the conveying assembly 4. The moving cylinder 53 is located on the inner side of the fixed frame 51 and below the conveying assembly 4. The screw 52 is installed on one side of the moving cylinder 53 via a bearing. The conveying pipe 56 is fixedly installed below the moving cylinder 53. The discharge pipe 55 is located on the outer side of the conveying pipe 56. The conveying pipe 56 and the discharge pipe 55 are connected by the lifting assembly 54.

[0023] By adopting the above technical solution, the staff can adjust the left and right position of the discharge by means of the cooperation of the screw 52 and the moving cylinder 53 when needed, so as to better meet the work needs in different situations.

[0024] Specifically, the adjustment and lifting device 5 also includes a guide rod 57, which is fixedly installed on the side of the moving cylinder 53 away from the screw 52.

[0025] By adopting the above technical solution, the device can guide the movement of the moving cylinder 53 through the guide rod 57, thereby preventing the moving cylinder 53 from rotating or deviating during movement and ensuring normal operation.

[0026] Specifically, the lifting assembly 54 includes a support plate 541, a lifting plate 542, and a lead screw 543. The support plate 541 is fixedly installed on the outside of the conveying pipe 56 and above the discharge pipe 55. The lifting plate 542 is fixedly installed on the outside of the discharge pipe 55. The lead screw 543 is installed below the support plate 541 and on the inside of one end of the lifting plate 542 and one side of the discharge pipe 55 via a bearing.

[0027] By adopting the above technical solution, the staff can adjust the discharge height by means of the lifting plate 542 and the lead screw 543 when needed, thereby better meeting the work needs in different situations.

[0028] Specifically, the outer diameter of the conveying pipe 56 is equal to the inner diameter of the discharge pipe 55.

[0029] By adopting the above technical solution, the device can ensure that the outer side of the conveying pipe 56 and the inner side of the discharge pipe 55 are in close contact with each other, thereby preventing the discharge pipe 55 from shifting during lifting and lowering, and preventing gaps between the outer side of the conveying pipe 56 and the inner side of the discharge pipe 55.

[0030] In this embodiment, when the additive manufacturing equipment needs to use the device for powder feeding, the operator installs the mounting frame assembly 2 in the required position on the additive manufacturing equipment, and then rotates the screw 52 in the adjusting and lifting device 5. The screw 52 is threadedly connected to the fixed frame 51, and the screw 52 is bearing-connected to the moving cylinder 53. The guide rod 57 on the moving cylinder 53 is slidably connected to the fixed frame 51. Therefore, the screw 52 drives the moving cylinder 53 and other structures to move, thereby adjusting the left and right position of the discharge pipe 55. It is important to ensure that the moving cylinder 53 does not move away from below the conveying assembly 4. Then, rotate the lifting assembly 54... The lead screw 543 is connected to the support plate 541 by a bearing, and is threaded to the lifting plate 542. The inner side of the discharge pipe 55 on the lifting plate 542 is in contact with the outer side of the conveying pipe 56. Therefore, the lead screw 543 drives the lifting plate 542 and the discharge pipe 55 on it to move, thereby adjusting the height of the discharge pipe 55. The operator can send the powder into the powder storage tank 1 through the powder feeding assembly 7. When feeding powder, the powder is sent into the moving cylinder 53 through the baffle assembly 3 and the conveying assembly 4. Then the powder passes through the conveying pipe 56 and the discharge pipe 55 and is discharged, thereby performing the powder feeding operation. Example

[0031] The difference between this embodiment and Embodiment 1 is that the auxiliary stirring device 6 includes a fixed box 61, a first gear 62, a second gear 63, stirring blades 64, a rotating shaft 65, and a motor 66. The fixed box 61 is fixedly installed on one side of the powder storage tank 1 and above the mounting frame assembly 2. The motor 66 is fixedly installed on the top of the fixed box 61. Multiple first gears 62 are fixedly installed on the outer side of the output end of the motor 66 and inside the fixed box 61. Multiple rotating shafts 65 are mounted on the edge of the fixed box 61 near the powder storage tank 1 via bearings. A second gear 63 is fixedly installed on the side of the rotating shaft 65 near the first gear 62. Multiple stirring blades 64 are fixedly installed on the outer side of the rotating shaft 65 and inside the powder storage tank 1.

[0032] By adopting the above technical solution, the staff can stir the powder in the powder storage tank 1 when needed through the cooperation of the motor 66 and the stirring blade 64, thereby reducing the possibility of the powder in the powder storage tank 1 clumping due to compression and other reasons, and ensuring the normal operation of the work.

[0033] In this embodiment, during operation, the operator can start the motor 66 on the fixed box 61 in the auxiliary stirring device 6. The motor 66 drives each of the first gears 62 to rotate, and each of the first gears 62 drives each of the second gears 63 to rotate. Each of the second gears 63 drives each of the rotating shafts 65 and their stirring blades 64 to stir the powder in the powder storage tank 1, thereby reducing the possibility of the powder in the powder storage tank 1 clumping due to compression and other reasons, and ensuring the normal operation of the work.

[0034] The structure and principle of the powder storage tank 1 and its upper structure, the mounting frame assembly 2 composed of a mounting frame and bolts, the baffle assembly 3 composed of a baffle, a fixing block, a retaining hole, a retaining groove and a hydraulic cylinder, the conveying assembly 4 composed of a first connecting cylinder, a second connecting cylinder and a powder conveying pump, and the powder feeding assembly 7 composed of a powder feeding cylinder, a first through hole and a baffle plate have been disclosed in Chinese Patent Application No. 202520151535.2, which discloses an adjustable powder feeding device for laser additive manufacturing. Its working principle is that during use, the mounting frame is aligned with the corresponding position on the external laser additive printing equipment, and further, the mounting frame is connected to the external laser additive printing equipment via bolts. The mounting frame is installed at the corresponding position on the laser additive printing equipment. Bolts can fix and limit the mounting frame, facilitating stable use of the mounting frame. The mounting frame can support and limit the powder storage tank and the various components assembled on it, contributing to stable use of the powder storage tank and the various components assembled on it. The upper end of the powder inlet cylinder is installed with the external equipment used for powder supply. The external equipment used for powder supply can transport powder to the powder storage tank through the first through hole on the powder inlet cylinder and the baffle plate. The lower end of the second connecting cylinder is further installed with the corresponding position on the external laser additive printing equipment. When it is necessary to target the required powder... When adjusting the amount of powder being conveyed, the hydraulic cylinder on the fixed block is opened. The fixed block can fix and limit the hydraulic cylinder, which helps to stabilize its use. When the hydraulic cylinder is open, the output rod of the hydraulic cylinder can drive the baffle to move horizontally. The baffle will move along the groove on the fixed block, and the size of the opening on the groove in the fixed block will be adjusted when the baffle moves. When it is necessary to convey powder, the powder conveying pump is opened. When the powder conveying pump is open, it can convey powder into the powder storage tank through the first connecting cylinder, the opening between the groove in the fixed block and the baffle, and the second through hole on the powder storage tank. The powder is extracted and transported by the powder delivery pump to the corresponding position on the external laser additive printing equipment via the second connecting cylinder for laser additive printing processing. Adjusting the opening between the reserved hole on the fixed block and the baffle helps regulate the amount of powder delivered. During use, this allows for easy adjustment of the powder delivery amount to meet the needs of the external laser additive printing equipment, ensuring the device's applicability and the effectiveness of the laser additive printing process.

[0035] The working principle and usage process of this utility model are as follows: When the additive manufacturing equipment needs to use the device for powder feeding, the operator installs the mounting frame assembly 2 in the required position on the additive manufacturing equipment. Then, the operator rotates the screw 52 in the adjusting and lifting device 5. The screw 52 is threadedly connected to the fixed frame 51, and the screw 52 is bearing-connected to the moving cylinder 53. The guide rod 57 on the moving cylinder 53 is slidably connected to the fixed frame 51. Therefore, the screw 52 drives the moving cylinder 53 and other structures to move, thereby adjusting the left and right positions of the discharge pipe 55. It is important to ensure that the moving cylinder 53 does not move away from the bottom of the conveying assembly 4. Then, the operator rotates the lead screw 543 in the lifting assembly 54. The lead screw 543 is bearing-connected to the support plate 541, and the lead screw 543 is threadedly connected to the lifting plate 542. The inner side of the discharge pipe 55 on the lifting plate 542 is aligned with the outer side of the conveying pipe 56. The components are closely fitted together, so the lead screw 543 drives the lifting plate 542 and its discharge pipe 55 to move, thereby adjusting the height of the discharge pipe 55. The operator can send the powder into the powder storage tank 1 through the powder feeding component 7. When feeding powder, the powder is sent into the moving cylinder 53 through the baffle component 3 and the conveying component 4, and then the powder is discharged through the conveying pipe 56 and the discharge pipe 55, thus carrying out the powder feeding work. During operation, the operator can start the motor 66 on the fixed box 61 in the auxiliary stirring device 6. The motor 66 drives each first gear 62 to rotate, each first gear 62 drives each second gear 63 to rotate, and each second gear 63 drives each rotating shaft 65 and its stirring blades 64 to stir the powder in the powder storage tank 1, thereby reducing the possibility of the powder in the powder storage tank 1 agglomerating due to compression and other reasons, and ensuring the normal operation of the work.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A powder feeding device for additive manufacturing equipment, comprising a powder storage bin (1), a powder feeding assembly (7) installed above the powder storage bin (1), an installation frame assembly (2) fixedly installed on the outside of the powder storage bin (1), a baffle assembly (3) fixedly installed below the powder storage bin (1), and a conveying assembly (4) fixedly installed below the baffle assembly (3), characterized in that: An adjustment and lifting device (5) is fixedly installed on the bottom outer side of the conveying component (4), and an auxiliary stirring device (6) is provided above the mounting frame component (2).

2. The powder feeding device for additive manufacturing equipment according to claim 1, characterized in that: The adjustment and lifting device (5) includes a fixed frame (51), a screw (52), a moving cylinder (53), a lifting assembly (54), a discharge pipe (55), and a conveying pipe (56). The fixed frame (51) is fixedly installed on the bottom outer side of the conveying assembly (4). The moving cylinder (53) is located on the inner side of the fixed frame (51) and below the conveying assembly (4). The screw (52) is installed on one side of the moving cylinder (53) through a bearing. The conveying pipe (56) is fixedly installed below the moving cylinder (53). The discharge pipe (55) is located on the outer side of the conveying pipe (56). The conveying pipe (56) and the discharge pipe (55) are connected by the lifting assembly (54).

3. The powder feeding device for additive manufacturing equipment according to claim 2, characterized in that: The adjustment and lifting device (5) also includes a guide rod (57), and the guide rod (57) is fixedly installed on the side of the moving cylinder (53) away from the screw (52).

4. The powder feeding device for additive manufacturing equipment according to claim 2, characterized in that: The lifting assembly (54) includes a support plate (541), a lifting plate (542), and a lead screw (543). The support plate (541) is fixedly installed on the outside of the conveying pipe (56) and above the discharge pipe (55). The lifting plate (542) is fixedly installed on the outside of the discharge pipe (55). The lead screw (543) is installed below the support plate (541) and on the inside of one end of the lifting plate (542) and one side of the discharge pipe (55) via a bearing.

5. The powder feeding device for additive manufacturing equipment according to claim 4, characterized in that: The outer diameter of the conveying pipe (56) is equal to the inner diameter of the discharge pipe (55).

6. The powder feeding device for additive manufacturing equipment according to claim 1, characterized in that: The auxiliary stirring device (6) includes a fixed box (61), a first gear (62), a second gear (63), a stirring blade (64), a rotating shaft (65), and a motor (66). The fixed box (61) is fixedly installed on one side of the powder storage tank (1) and above the mounting frame assembly (2). The motor (66) is fixedly installed above the fixed box (61). Multiple first gears (62) are fixedly installed on the outer side of the output end of the motor (66) and inside the fixed box (61). Multiple rotating shafts (65) are installed on the edge of the fixed box (61) near the powder storage tank (1) via bearings. A second gear (63) is fixedly installed on the side of the rotating shaft (65) near the first gear (62). Multiple stirring blades (64) are fixedly installed on the outer side of the rotating shaft (65) and inside the powder storage tank (1).

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