Scraper structure for 3D printer

Abstract

The scraper structure for the 3D printer comprises an installation frame, the top of the outer wall of a scraper piece is connected with the installation frame in a sliding and sleeved mode, an adjusting assembly is arranged on the side edge of the installation frame, a first installation block is fixedly installed on the top of the side edge of the scraper piece, and a second installation block is fixedly connected to the side edge of the installation frame. The outer wall of the adjusting screw rod is in threaded connection with the second mounting block, the bottom of the outer wall of the adjusting screw rod is rotationally connected with the first mounting block, and the locking assembly is arranged on the first mounting block and used for locking the adjusting screw rod. According to the utility model, the mounting rack, the scraper piece and the adjusting assembly are matched for use, the locking state of the adjusting screw rod by the locking assembly is released, and the adjusting screw rod is rotated, so that the distance between the first mounting block and the second mounting block can be changed, and the distance between the bottom of the scraper piece and a powder material on a printer is adjusted; therefore, the powder materials with different thicknesses are laid on the printing table of the printer.

Description

Technical Field

[0001] This utility model relates to the field of 3D printers, and in particular to a scraper structure for 3D printers. Background Technology

[0002] The scraper structure plays a crucial role in 3D printers, ensuring uniform material distribution and removing excess material, thereby improving print quality and efficiency. As 3D printing technology develops, the design and function of scrapers are constantly evolving to adapt to different types of printers and material requirements.

[0003] The scraper mechanism on UV curing printers and selective laser sintering printers is used to scrape the powder material on the printer's feed table, ensuring the uniformity of each layer of powder material, thereby improving print quality.

[0004] However, existing printer scraper mechanisms are usually mounted directly on the reciprocating translation mechanism via a mounting bracket. This mounting method results in a fixed distance between the bottom of the scraper and the carrier platform that holds the powder material. Consequently, it is not convenient to adjust the thickness of the powder material layer according to the needs of the printed material or object, thus presenting certain defects. Utility Model Content

[0005] The purpose of this invention is to provide a scraper structure for a 3D printer to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a scraper structure for a 3D printer, comprising:

[0007] Mounting rack;

[0008] A scraper component, wherein the top of the outer wall of the scraper component is slidably sleeved with the mounting bracket;

[0009] An adjustment assembly, disposed on the side of the mounting bracket, comprising:

[0010] The first mounting block is fixedly mounted on the top of the side of the scraper component;

[0011] The second mounting block is fixedly connected to the side of the mounting frame;

[0012] An adjusting screw, the outer wall of which is threadedly connected to a second mounting block, and the bottom of the outer wall of which is rotatably connected to a first mounting block;

[0013] A locking component is disposed on a first mounting block and is used to lock the adjusting screw.

[0014] Preferably, the adjustment component further includes:

[0015] A knob, which is fixedly connected to the top of the adjusting screw;

[0016] A scale ruler is fixedly installed on the front of the first mounting block, and the scale ruler corresponds to the second mounting block.

[0017] Preferably, the adjustment component further includes:

[0018] A connecting disc is fixedly connected to the bottom of the adjusting screw, and the top of the first mounting block is provided with a groove that matches the connecting disc. The locking assembly locks the adjusting screw through the connecting disc.

[0019] A limiting collar is fixedly sleeved on the top of the inner cavity of the groove, and the limiting collar is located on the top of the connecting disc.

[0020] Preferably, the adjustment component further includes:

[0021] A connecting block is fixedly connected to the side of the scraper component, and a connecting groove matching the connecting block is provided on one side of the first mounting block;

[0022] The fixing bolt has a slot on the front side of the first mounting block that matches the fixing bolt, and the outer wall of the fixing bolt is threadedly connected to the connecting block.

[0023] Preferably, the locking component includes:

[0024] A handle plate, wherein the handle plate is disposed at the bottom of the first mounting block;

[0025] A locking plate, the bottom of which is fixedly connected to the handle plate, and a guide groove matching the locking plate is provided at the bottom of the first mounting block;

[0026] The locking grooves are arranged in a ring array at the bottom of the outer wall of the connecting disc, and the top of the outer wall of the locking plate is slidably engaged with the inner cavity of the locking groove.

[0027] Preferably, the locking component further includes:

[0028] A connecting plate, one end of which is fixedly connected to a locking plate, and an installation groove matching the connecting plate is provided on one side of the inner wall of the guide groove;

[0029] A fixing block is fixedly connected to the bottom of the mounting groove cavity, and a fixing rod is fixedly connected to the top of the fixing block;

[0030] A support spring is slidably sleeved on the outside of the fixed rod, and the support spring is located between the fixed block and the connecting plate.

[0031] The technical effects and advantages of this utility model are as follows:

[0032] This utility model utilizes the combined use of a mounting bracket, a scraper, and an adjustment component. The adjustment component includes a first mounting block, a second mounting block, an adjustment screw, and a locking component. By releasing the locking component from the locking state of the adjustment screw and rotating the adjustment screw, the distance between the first mounting block and the second mounting block can be changed, thereby adjusting the distance between the bottom of the scraper and the powder material on the printer, so that the powder material is spread on the printer's printing table at different thicknesses. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0034] Figure 2 This is a schematic diagram of the internal structure of the side of the first mounting block of this utility model;

[0035] Figure 3 This is a schematic diagram of the internal structure of the front part of the first mounting block of this utility model.

[0036] In the diagram: 1. Mounting bracket; 2. Scraper assembly; 3. Adjustment assembly; 31. First mounting block; 32. Second mounting block; 33. Adjustment screw; 34. Locking assembly; 341. Handle plate; 342. Locking plate; 343. Connecting plate; 344. Support spring; 345. Fixing block; 346. Fixing rod; 35. Knob; 36. Connecting disc; 37. Limiting collar; 38. Connecting block; 39. Fixing bolt. Detailed Implementation

[0037] 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.

[0038] This utility model provides, for example Figure 1-3 The image shows a scraper structure for a 3D printer.

[0039] Example 1

[0040] The system includes a mounting frame 1, a scraper component 2, and an adjustment assembly 3. The top of the outer wall of the scraper component 2 is slidably sleeved with the mounting frame 1. During use, the scraper component 2 is mounted on the translation drive mechanism of the 3D printer via the mounting frame 1. This is existing technology and will not be described in detail here. The adjustment assembly 3 is located on the side of the mounting frame 1. The adjustment assembly 3 includes a first mounting block 31, a second mounting block 32, an adjusting screw 33, and a locking assembly 34. The first mounting block 31 is fixedly mounted on the top of the side of the scraper component 2, and the second mounting block 32 is fixedly connected to the side of the mounting frame 1, with the second mounting block 32 located at the bottom of the first mounting block 31. The two first mounting blocks 31 on both sides of the scraper 2 are located on both sides of the mounting frame 1, which can limit the scraper 2. The outer wall of the adjusting screw 33 is threadedly connected to the second mounting block 32, and the bottom of the outer wall of the adjusting screw 33 is rotatably connected to the first mounting block 31. The locking component 34 is set on the first mounting block 31. The locking component 34 is used to lock the adjusting screw 33, thereby releasing the limitation of the adjusting screw 33 by the locking component 34. By rotating the adjusting screw 33, the distance between the first mounting block 31 and the second mounting block 32 can be changed, thereby adjusting the distance between the bottom of the scraper 2 and the powder layer.

[0041] Furthermore, the adjustment assembly 3 also includes a knob 35 and a scale. The knob 35 is fixedly connected to the top of the adjustment screw 33, and the scale is fixedly installed on the front of the first mounting block 31. The scale corresponds to the second mounting block 32, and the scale can intuitively show the distance between the first mounting block 31 and the second mounting block 32, thereby improving the accuracy of adjusting the position of the scraper 2.

[0042] Furthermore, the adjustment assembly 3 also includes a connecting disc 36, a limiting collar 37, a connecting block 38, and a fixing bolt 39. The connecting disc 36 is fixedly connected to the bottom of the adjusting screw 33, and the top of the first mounting block 31 has a groove that matches the connecting disc 36. The locking assembly 34 locks the adjusting screw 33 through the connecting disc 36. The limiting collar 37 is fixedly sleeved on the top of the inner cavity of the groove. The limiting collar 37 is located on the top of the connecting disc 36. Under the action of the connecting disc 36 and the limiting collar 37, the adjusting screw 33 can maintain a stable rotational connection with the first mounting block 31. The connecting block 38 is fixedly connected to the side of the scraper 2. One side of the first mounting block 31 has a connecting groove that matches the connecting block 38, and the front of the first mounting block 31 has a slot that matches the fixing bolt 39. The outer wall of the fixing bolt 39 is threadedly connected to the connecting block 38. By removing the fixing bolt 39, the first mounting blocks 31 on both sides of the scraper 2 can be disassembled.

[0043] Example 2

[0044] Based on Embodiment 1, the locking assembly 34 includes a handle plate 341, a locking plate 342, and a locking groove. The handle plate 341 is disposed at the bottom of the first mounting block 31. The bottom of the locking plate 342 is fixedly connected to the handle plate 341. The bottom of the first mounting block 31 is provided with a guide groove that matches the locking plate 342. The locking groove is arranged in a ring array at the bottom of the outer wall of the connecting disc 36. The top of the outer wall of the locking plate 342 is slidably engaged with the inner cavity of the locking groove, so that the locking plate 342 is engaged with the connecting disc 36, thereby locking the adjusting screw 33.

[0045] Furthermore, the locking assembly 34 also includes a connecting plate 343, a fixing block 345, and a support spring 344. One end of the connecting plate 343 is fixedly connected to the locking plate 342. A mounting groove matching the connecting plate 343 is provided on one side of the inner wall of the guide groove. The fixing block 345 is fixedly connected to the bottom of the inner cavity of the mounting groove. A fixing rod 346 is fixedly connected to the top of the fixing block 345. The outer wall of the fixing rod 346 is slidably inserted and sleeved with the connecting plate 343. The support spring 344 is slidably sleeved on the outside of the fixing rod 346. The support spring 344 is located between the fixing block 345 and the connecting plate 343. The support spring 344 can provide an elastic support force to the locking plate 342 through the connecting plate 343, thereby keeping the locking plate 342 and the locking groove at the bottom of the connecting disc 36 in a stable snap-fit ​​state.

[0046] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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.

Claims

1. A scraper structure for a 3D printer, characterized in that, include: Mounting bracket (1); Scraper (2), the top of the outer wall of the scraper (2) is slidably sleeved with the mounting bracket (1); An adjustment component (3) is disposed on the side of the mounting bracket (1), and the adjustment component (3) includes: The first mounting block (31) is fixedly mounted on the top of the side of the scraper (2); The second mounting block (32) is fixedly connected to the side of the mounting bracket (1); An adjusting screw (33) is provided, the outer wall of which is threadedly connected to the second mounting block (32), and the bottom of the outer wall of the adjusting screw (33) is rotatably connected to the first mounting block (31). A locking component (34) is disposed on the first mounting block (31) and is used to lock the adjusting screw (33).

2. The scraper structure for a 3D printer according to claim 1, characterized in that, The adjustment component (3) further includes: A knob (35) is fixedly connected to the top of an adjusting screw (33); A scale ruler is fixedly installed on the front of the first mounting block (31) and corresponds to the second mounting block (32).

3. The scraper structure for a 3D printer according to claim 2, characterized in that, The adjustment component (3) further includes: A connecting disc (36) is fixedly connected to the bottom of the adjusting screw (33), and the top of the first mounting block (31) is provided with a groove that matches the connecting disc (36). The locking component (34) locks the adjusting screw (33) through the connecting disc (36). A limiting collar (37) is fixedly sleeved on the top of the inner cavity of the groove, and the limiting collar (37) is located on the top of the connecting disc (36).

4. The scraper structure for a 3D printer according to claim 3, characterized in that, The adjustment component (3) further includes: A connecting block (38) is fixedly connected to the side of the scraper (2), and a connecting groove matching the connecting block (38) is provided on one side of the first mounting block (31). The fixing bolt (39) is provided on the front side of the first mounting block (31) with a slot that matches the fixing bolt (39), and the outer wall of the fixing bolt (39) is threadedly connected to the connecting block (38).

5. A scraper structure for a 3D printer according to claim 3, characterized in that, The locking component (34) includes: A handle plate (341) is disposed at the bottom of the first mounting block (31); Locking plate (342), the bottom of which is fixedly connected to handle plate (341), and the bottom of the first mounting block (31) is provided with a guide groove that matches the locking plate (342); The locking groove is arranged in a ring array at the bottom of the outer wall of the connecting disc (36), and the top of the outer wall of the locking plate (342) is slidably engaged with the inner cavity of the locking groove.

6. The scraper structure for a 3D printer according to claim 5, characterized in that, The locking component (34) further includes: A connecting plate (343) is provided, one end of which is fixedly connected to a locking plate (342), and a mounting groove matching the connecting plate (343) is provided on one side of the inner wall of the guide groove. A fixing block (345) is fixedly connected to the bottom of the mounting groove cavity, and a fixing rod (346) is fixedly connected to the top of the fixing block (345); A support spring (344) is slidably sleeved on the outside of the fixing rod (346) and is located between the fixing block (345) and the connecting plate (343).

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