Screening device for false tooth 3D printing material

Abstract

The utility model relates to the field of 3D printing materials, and discloses a false tooth 3D printing material screening device which comprises a box body, a feeding opening is fixedly connected to the upper surface of the box body, and a first filter sieve and a second filter sieve are slidably connected to the inner side wall of the box body; discharging grooves are formed in the upper surface of the first filter sieve and the upper surface of the second filter sieve in a penetrating mode, the side surface of the box body is connected with a first material receiving box, a second material receiving box and a third material receiving box in a clamped mode, and the first material receiving box is located below the first filter sieve; the second material receiving box and the third material receiving box are both positioned below the second filter sieve; according to the denture 3D printing material screening device, denture 3D printing materials can be subjected to double screening, so that the screening efficiency and uniformity of the denture 3D printing materials are improved, and then the screening efficiency and the screening quality are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of 3D printing materials, in particular to a kind of denture 3D printing material screening device. BACKGROUND

[0002] Denture is commonly known as "false teeth", is the general term for the prosthesis made after the upper and lower jaw partial or total tooth loss, denture is divided into removable and fixed two, fixed denture (commonly known as "fixed false teeth") cannot be taken by patients themselves, and removable denture (commonly known as "mobile false teeth") can be conveniently taken by patients;

[0003] Denture can be made by 3D printing with special materials, and the uniformity of the volume of material particles is crucial to the printing quality and the performance of the final product. The printing material particles need to be screened, however, the screening effect of most existing screening devices is not good, and only one screening can be carried out, resulting in low screening efficiency and screening quality, which affects the subsequent production quality of denture.

[0004] For the above-mentioned related technology, the inventors believe that the screening device for denture 3D printing material has the defect that it is difficult to double-screen the denture 3D printing material.

[0005] The above information disclosed in the background technology is only used to increase the understanding of the background technology of the present application, and therefore it can include prior art known to those skilled in the art. CONTENT OF THE UTILITY MODEL

[0006] In order to solve the problem that the screening device for denture 3D printing material is difficult to double-screen the denture 3D printing material, the present application provides a kind of denture 3D printing material screening device.

[0007] The screening device for denture 3D printing material provided by the present application adopts the following technical scheme:

[0008] A kind of denture 3D printing material screening device, including box, the upper surface of the box is fixedly connected with inlet, the inner side wall of the box is slidably connected with first filter screen and second filter screen, the upper surface of the first filter screen and the second filter screen is all through the opening of discharge chute, the side surface of the box is hingedly connected with first receiving box, second receiving box, third receiving box, and the first receiving box is located below the first filter screen, the second receiving box and the third receiving box are located below the second filter screen.

[0009] Preferably, the side surface of the box is rotatably connected with two rotating shafts, the box is rotatably connected with two eccentric wheels through the two rotating shafts, and the outer surfaces of the two rotating shafts are respectively in contact with the lower surfaces of the first filter screen and the second filter screen.

[0010] Preferably, the inner side wall of the box is fixedly connected with a plurality of support plates.

[0011] Preferably, the opposite side surfaces of the upper and lower adjacent two support plates are fixedly connected with dampers, and the dampers are fixedly connected to the upper and lower surfaces of the first filter screen, respectively.

[0012] Preferably, the side surface of the third material receiving box is provided with a groove, the side surface of the box is provided with a mounting groove, the inner wall of the mounting groove is elastically and slidingly connected with a clamping block through a spring, and the clamping block can be clamped to the inner wall of the groove.

[0013] To sum up, the present application has the following beneficial technical effects:

[0014] By setting the first filter screen, the second filter screen, the first material receiving box, the second material receiving box and the third material receiving box to be used together, the denture 3D printing material can be double-screened, thereby improving the screening efficiency and uniformity of the denture 3D printing material, reducing material waste and production cost, and having the effect of double-screening the denture 3D printing material compared with the prior art. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a schematic diagram of the whole application embodiment;

[0016] Figure 2 is a sectional structure diagram of the application embodiment;

[0017] Figure 3 is Figure 2 is an enlarged schematic diagram of A;

[0018] Figure 4 is Figure 2 is an enlarged schematic diagram of B.

[0019] BRIEF DESCRIPTION OF DRAWINGS 1, box; 2, feed inlet; 3, first filter screen; 4, second filter screen; 5, discharge chute; 6, first material receiving box; 7, second material receiving box; 8, third material receiving box; 9, rotating shaft; 10, eccentric wheel; 11, support plate; 12, damper; 13, groove; 14, mounting groove; 15, clamping block. DETAILED DESCRIPTION

[0020] The following will be described in detail in combination with the accompanying Figures 1-4 The application will be further described in detail.

[0021] The application embodiment discloses a screening device for denture 3D printing material. Referring to Figure 1 , Figure 2The device includes a rectangular hollow box 1, with a feed inlet 2 fixedly connected to the upper surface of the box 1. Denture 3D printing material particles requiring sieving are poured into the feed inlet 2 and then fall downwards into the box 1 through the feed inlet 2 for subsequent multi-stage sieving of the printing material. A plate-shaped first filter screen 3 and a plate-shaped second filter screen 4 are slidably connected to the inner side wall of the box 1. A discharge groove 5 is provided through the upper surface of both the first filter screen 3 and the second filter screen 4. A first receiving box 6, a second receiving box 7, and a third receiving box 8 are snapped onto the side surface of the box 1. The first receiving box 6 is located below the first filter screen 3, and the second and third receiving boxes 7 and 8 are both located below the second filter screen 4. This allows the 3D printing material particles to fall onto the first filter screen 3 through the feed inlet 2, and simultaneously be sieved by the up-and-down sliding vibration of the first filter screen 3. The process involves a coarse filtration of the printing material. Larger pieces of material roll diagonally downwards along the first filter screen 3 and then fall through the feed chute 5 into the first receiving box 6 for collection. Other printing materials pass through the first filter screen 3 and fall downwards onto the second filter screen 4. Medium-sized pieces of printing material cannot pass through the mesh of the second filter screen 4, so they roll diagonally downwards along the second filter screen 4 and then fall through the feed chute 5 into the second receiving box 7 for collection. Smaller pieces of printing material pass through the mesh of the second filter screen 4 and fall downwards into the third receiving box 8 for collection. This double sieving process significantly improves the sieving efficiency and uniformity of the denture 3D printing material, while reducing material waste and production costs.

[0022] Reference Figure 2 , Figure 3 Two columnar shafts 9 are rotatably connected to the side surface of the housing 1. One end of the shaft 9 passes through the housing 1 to its outer surface and is fixedly connected to the output end of the motor. The housing 1 is rotatably connected to two circular plate-shaped eccentric wheels 10 through the two shafts 9. The outer surfaces of the two shafts 9 are in contact with the lower surfaces of the first filter screen 3 and the second filter screen 4, respectively. Furthermore, several block-shaped support plates 11 are fixedly connected to the inner side wall of the housing 1. Dampers 12 are fixedly connected to the opposite side surfaces of two adjacent support plates 11. Several dampers 12 are fixedly connected to the upper and lower surfaces of the first filter screen 3, respectively. So that when screening, the motor drives the shafts 9 to rotate, thereby driving the eccentric wheels 10 to rotate. With the cooperation of the dampers 12, the first filter screen 3 is driven to slide up and down to vibrate, so as to screen the 3D printing material.

[0023] Reference Figure 4A groove-shaped groove 13 is provided on the side surface of the third receiving box 8, and a groove-shaped mounting groove 14 is provided on the side surface of the box body 1. A block-shaped locking block 15 is elastically slidably connected to the inner wall of the mounting groove 14 by a spring, and the locking block 15 can be locked into the inner wall of the groove 13. When the third receiving box 8 needs to be installed, the locking block 15 is pressed to retract into the inner wall of the mounting groove 14, and then the third receiving box 8 is slid inward along the inner wall of the box body 1 for installation. Then, due to the disappearance of the external force, the locking block 15 rebounds and locks into the inner wall of the locking block 15 under the reset action of the spring, thereby stably locking and fixing the third receiving box 8, thus ensuring the stability of the third receiving box 8 and preventing the third receiving box 8 from loosening during the vibration screening process, thereby ensuring the screening quality.

[0024] The implementation principle of the sieving device for 3D printing denture materials in this application embodiment is as follows: During use, the 3D printing material particles to be sieved are poured into the feed inlet 2, and then fall downwards through the feed inlet 2 onto the first filter screen 3. Simultaneously, the motor drives the rotating shaft 9 to rotate, thereby driving the eccentric wheel 10 to rotate. With the cooperation of the damper 12, the first filter screen 3 slides up and down, vibrating, thus coarsely filtering the printing material. Larger pieces of printing material roll obliquely downwards along the first filter screen 3, and then fall through the discharge chute 5 into the first receiving box 6 below for centralized collection. Other printing materials... The material passes through the first filter screen 3 and falls down onto the second filter screen 4 below. Through the up-and-down sliding vibration of the second filter screen 4, small-volume printing materials pass through the mesh of the second filter screen 4 and fall down into the third receiving box 8 below for collection. Medium-volume printing materials cannot pass through the mesh of the second filter screen 4, so they roll diagonally down along the second filter screen 4 and then fall into the second receiving box 7 below through the discharge chute 5 for centralized collection. This allows for double screening of the denture 3D printing material, thereby significantly improving the screening efficiency and screening quality of the denture 3D printing material.

[0025] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0026] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0027] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

[0028] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A sieving device for 3D printing materials for dentures, comprising a housing (1), characterized in that: The upper surface of the box (1) is fixedly connected to the inlet (2), and the inner side wall of the box (1) is slidably connected to the first filter screen (3) and the second filter screen (4). The upper surfaces of the first filter screen (3) and the second filter screen (4) are both provided with a discharge groove (5). The side surface of the box (1) is fitted with the first receiving box (6), the second receiving box (7), and the third receiving box (8). The first receiving box (6) is located below the first filter screen (3), and the second receiving box (7) and the third receiving box (8) are both located below the second filter screen (4).

2. The sieving device for 3D printing materials for dentures according to claim 1, characterized in that: The side surface of the box (1) is rotatably connected to two rotating shafts (9), and the box (1) is rotatably connected to two eccentric wheels (10) through the two rotating shafts (9), and the outer surfaces of the two rotating shafts (9) are in contact with the lower surfaces of the first filter screen (3) and the second filter screen (4), respectively.

3. The sieving device for 3D printing materials for dentures according to claim 1, characterized in that: The inner wall of the box (1) is fixedly connected with several support plates (11).

4. The sieving device for 3D printing material of dentures according to claim 3, characterized in that: Dampers (12) are fixedly connected to the opposite side surfaces of the two adjacent support plates (11), and several dampers (12) are fixedly connected to the upper and lower surfaces of the first filter screen (3).

5. The sieving device for 3D printing material of dentures according to claim 1, characterized in that: The third receiving box (8) has a groove (13) on its side surface, and the box body (1) has an installation groove (14) on its side surface. The inner wall of the installation groove (14) is elastically slidably connected to a locking block (15) by a spring, and the locking block (15) can be locked into the inner wall of the groove (13).

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