Detachable scraper structure of SLA type 3D printer

Abstract

The utility model discloses a detachable scraper structure of an SLA type 3D printer, which comprises a mounting plate, a horizontal adjusting plate connected with the bottom of the mounting plate through a distance adjusting mechanism, a first clamping seat, a second clamping seat, a locking mechanism for pushing the second clamping seat to slide close to the first clamping seat, and a scraper, clamping grooves in the same length direction are formed in the opposite side walls of the first clamping base and the second clamping base in a sunken mode, a conical necking part is arranged on the side wall, away from the other clamping groove, of each clamping groove in a sunken mode, and a fixing strip matched with the corresponding clamping groove is arranged at the top of the scraper in a protruding mode. Conical parts matched with the conical necking parts are arranged on the two sides of the fixing strip, the conical necking parts on the first clamping seat and the second clamping seat can be matched with the conical parts on the fixing strip, the position of the scraper is automatically adjusted, the assembly precision of the scraper is improved, the distance between the mounting plate and the adjusting plate is adjusted through the distance adjusting mechanism, and the assembly efficiency of the scraper is improved. Therefore, the influence caused by sharpening is compensated, and the use precision of the scraper is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to 3D printer related technical field, specifically, a kind of SLA type 3D printer detachable doctor blade structure. BACKGROUND

[0002] SLA printer is usually composed of four main parts: a tank containing liquid photopolymer (liquid resin), a perforated platform immersed in a water bath, a high-power ultraviolet laser and a computer interface. Liquid resin is usually a transparent liquid plastic, while the platform can move up and down according to the printing process. When the printing process starts, the laser will pull the first layer pattern into the photosensitive resin. Wherever the laser hits, the liquid will solidify. The laser is directed to the appropriate coordinates by a computer-controlled mirror. Most desktop SLA printers are inverted, which means the laser is pointing at the build platform, which starts from a low position and gradually rises.

[0003] The utility model discloses a kind of SLA type 3D printer detachable doctor blade structure of SLA type 3D printer of Chinese application No. UTILITY MODEL CONTENTS

[0004] In view of the above technical problems, the utility model aims at overcoming the problems of low assembly precision of the doctor blade in the prior art and the inability to adjust the height of the doctor blade according to the specific conditions of the doctor blade.

[0005] To achieve the above-mentioned purpose, the utility model provides a kind of SLA type 3D printer detachable doctor blade structure, comprising: mounting plate, the horizontal adjusting plate of spacing adjustment mechanism and the bottom of mounting plate connection, the first clamping seat of strip shape fixedly assembled on the lower surface of adjusting plate, the second clamping seat of horizontal sliding along the direction perpendicular to the length direction of first clamping seat with the lower surface of adjusting plate, the locking mechanism of assembly on adjusting plate for pushing second clamping seat to slide close to first clamping seat and the doctor blade that can be fixedly clamped by first clamping seat and second clamping seat;

[0006] The opposite side walls of the first clamping seat and the second clamping seat are concavely provided with clamping grooves in the same length direction, the side wall of the clamping groove away from the other clamping groove is concavely provided with a tapered necking portion, the top of the scraper is protrusively provided with a fixing strip matched with the clamping groove, and the two sides of the fixing strip are provided with tapered portions matched with the tapered necking portion.

[0007] Preferably, the interval adjusting mechanism comprises a plurality of adjusting bolts arranged at intervals and vertically sliding through the adjusting plate, the bottom of the mounting plate is fixedly provided with a plurality of threaded sleeves corresponding to the adjusting bolts, each adjusting bolt is threadedly inserted into the corresponding threaded sleeve, and the adjusting bolt is sleeved with springs abutting against the mounting plate and the adjusting plate at two ends.

[0008] Preferably, the fixing strip comprises a plurality of fixing blocks arranged at equal intervals on the scraper along the length of the scraper, the interval between two adjacent fixing blocks is arranged to form a first gap, the first clamping seat is provided with a second gap for the corresponding fixing block to pass through, and the first gap corresponds to the position between the two adjacent second gaps on the first clamping seat.

[0009] Preferably, the locking mechanism comprises at least one threaded seat fixedly arranged on the adjusting plate and located on the side of the second clamping seat away from the first clamping seat, and each threaded seat is threadedly connected with a locking bolt having an end capable of abutting against the second clamping seat.

[0010] Preferably, the top of the second clamping seat is provided with a sliding block portion, and the lower surface of the adjusting plate is concavely provided with a sliding groove matched with the sliding block portion.

[0011] Preferably, the threaded seat is arranged on the end of the sliding groove away from the first clamping seat.

[0012] According to the above technical scheme, the detachable scraper structure of the SLA type 3D printer has the beneficial effects that:

[0013] Firstly, the tapered necking portions on the first clamping seat and the second clamping seat can be matched with the tapered portions on the fixing strip, so that the position of the scraper is automatically adjusted, the scraper is prevented from being inclined, and the assembly precision of the scraper is improved.

[0014] Secondly, the interval between the mounting plate and the adjusting plate is adjusted by the interval adjusting mechanism, so that the influence caused by the sharpening of the scraper is compensated, and the use precision of the scraper is improved.

[0015] Other features and advantages of the present application will be described in detail in the following specific implementation part; and the parts not involved in the present application are the same as or can be realized by the prior art. BRIEF DESCRIPTION OF DRAWINGS

[0016] The accompanying drawings are used to provide further understanding of the present application and constitute a part of the specification, and together with the following specific embodiments, serve to explain the present application but do not constitute a limitation on the present application. In the drawings:

[0017] Figure 1 is a three-dimensional structure schematic of the detachable scraper structure of the SLA type 3D printer provided by the present application Figure 1 ;

[0018] Figure 2 is a side view of the detachable scraper structure of the SLA type 3D printer provided by the present application;

[0019] Figure 3 is a three-dimensional structure schematic of the detachable scraper structure of the SLA type 3D printer provided by the present application Figure 2 ;

[0020] Figure 4 is a partial exploded view of the detachable scraper structure of the SLA type 3D printer provided by the present application.

[0021] Legend of reference signs

[0022] 1, mounting plate; 2, adjusting plate; 3, first clamping seat; 4, second clamping seat; 5, scraper; 6, clamping groove; 7, conical part; 8, adjusting bolt; 9, threaded sleeve; 10, spring; 11, fixed block; 12, first notch; 13, second notch; 14, threaded seat; 15, locking bolt; 16, sliding block part; 17, sliding groove. Specific embodiments

[0023] The specific embodiments of the present application will be described in detail below in combination with the drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present application and do not limit the present application.

[0024] In the present application, unless otherwise stated, the orientation words contained in the terms such as "up, down, in, out" only represent the orientation of the terms in the conventional use state or the common name understood by those skilled in the art, and should not be regarded as a limitation on the terms.

[0025] As Figures 1-4 shown, a detachable scraper structure of an SLA type 3D printer comprises a mounting plate 1, a horizontal adjusting plate 2 connected to the bottom of the mounting plate 1 through a spacing adjusting mechanism, a strip-shaped first clamping seat 3 fixedly assembled on the lower surface of the adjusting plate 2, a second clamping seat 4 horizontally sliding with the lower surface of the adjusting plate 2 in a direction perpendicular to the length direction of the first clamping seat 3, a locking mechanism assembled on the adjusting plate 2 for pushing the second clamping seat 4 to slide close to the first clamping seat 3, and a scraper 5 that can be fixedly clamped by the first clamping seat 3 and the second clamping seat 4.

[0026] The first and second clamping seats 3 and 4 are provided with clamping grooves 6 of the same length direction on the opposite side walls, the side walls of the clamping grooves 6 away from each other are provided with tapered necking portions, the top of the scraper 5 is provided with a fixing strip matched with the clamping grooves 6, and the two sides of the fixing strip are provided with tapered portions 7 matched with the tapered necking portions.

[0027] When the scraper 5 needs to be replaced, the locking mechanism is opened, the second clamping seat 4 can slide away from the first clamping seat 3 on the adjusting plate 2, the first and second clamping seats 3 and 4 are loosened from the scraper 5, and the scraper 5 can be disassembled; when assembling, after the fixing strip is inserted between the first and second clamping seats 3 and 4, the second clamping seat 4 is pushed to slide close to the first clamping seat 3 through the locking mechanism, the tapered necking portions on the first and second clamping seats 3 and 4 can be matched with the tapered portions 7 on the fixing strip, thereby automatically adjusting the position of the scraper 5, avoiding the inclination of the scraper 5, and improving the assembly precision of the scraper 5.

[0028] After the scraper 5 is used for a long time, the scraper 5 is disassembled for grinding, maintenance and maintenance, the maximum distance between the top and bottom of the scraper 5 is affected by the grinding, the distance between the mounting plate 1 and the adjusting plate 2 can be adjusted through the distance adjusting mechanism, thereby compensating for the influence after the grinding, and improving the use precision of the scraper 5.

[0029] The distance adjusting mechanism comprises a plurality of adjusting bolts 8 which are arranged at intervals and vertically slide through the adjusting plate 2, the bottom of the mounting plate 1 is fixedly provided with a plurality of threaded sleeves 9 corresponding to the plurality of adjusting bolts 8, each adjusting bolt 8 is threadedly inserted into the corresponding threaded sleeve 9, and the adjusting bolt 8 is provided with a spring 10 abutting against the mounting plate 1 and the adjusting plate 2 at both ends.

[0030] When the position of the lowest part of the scraper 5 needs to be adjusted, the adjusting bolt 8 is loosened, and when the head of the adjusting bolt 8 moves upward, the adjusting plate 2 moves upward, thereby driving the scraper 5 to move upward; when the head of the adjusting bolt 8 moves downward, the spring 10 drives the adjusting plate 2 to move downward, so that the adjusting plate 2 abuts against the head of the adjusting bolt 8, thereby driving the scraper 5 to move downward.

[0031] The fixing strip comprises a plurality of fixing blocks 11 arranged at equal intervals on the scraper 5 along the length direction of the scraper 5, the interval between two adjacent fixing blocks 11 forms a first notch 12, the first clamping seat 3 is provided with a second notch 13 through which the corresponding fixing block 11 passes, and the first notch 12 corresponds to the position between the two adjacent second notches 13 on the first clamping seat 3.

[0032] When the scraper 5 is disassembled, the locking mechanism is opened, the scraper 5 is pulled along the length direction of the scraper 5, the fixed block 11 corresponds to the second notch 13, the first notch 12 corresponds to the part on the first clamping seat 3, the scraper 5 is pushed along the horizontal direction perpendicular to the length direction of the scraper 5, the scraper 5 moves away from the second clamping seat 4, and the scraper 5 can be taken off;

[0033] When the scraper 5 is assembled, the fixed block 11 corresponds to the second notch 13, the first notch 12 corresponds to the part on the first clamping seat 3, the scraper 5 is pushed along the horizontal direction perpendicular to the length direction of the scraper 5, the scraper 5 moves close to the second clamping seat 4, the fixed block 11 enters between the first clamping seat 3 and the second clamping seat 4 through the second notch 13, the fixed block 11 is dislocated from the second notch 13, and the first clamping seat 3 and the second clamping seat 4 can clamp the scraper 5, so that the disassembly and assembly efficiency is improved, and the operation difficulty is reduced.

[0034] The locking mechanism comprises at least one threaded seat 14 fixedly arranged on the adjusting plate 2 and located on the side, away from the first clamping seat 3, of the second clamping seat 4.

[0035] The locking screw 15 is loosened, the second clamping seat 4 is pushed to slide away from the first clamping seat 3, the locking screw 15 is tightened, the end of the locking screw 15 pushes the second clamping seat 4 to slide close to the first clamping seat 3, and the scraper 5 is clamped.

[0036] The top of the second clamping seat 4 is provided with a sliding block part 16, and the lower surface of the adjusting plate 2 is recessed and provided with a sliding groove 17 matched with the sliding block part 16.

[0037] The threaded seat 14 is arranged on the end of the sliding groove 17, away from the first clamping seat 3.

[0038] The threaded seat 14 arranged on the sliding groove 17 can also play a limiting role, preventing the sliding block part 16 from sliding out of the sliding groove 17.

[0039] The preferred embodiments of the utility model are described in detail above with reference to the drawings, but the utility model is not limited to the specific details in the above embodiments, and various simple modifications can be made to the technical scheme of the utility model within the technical concept of the utility model, and the simple modifications all belong to the protection scope of the utility model.

[0040] In addition, it should be noted that various specific technical features described in the above specific embodiments can be combined in any appropriate manner without contradiction, and in order to avoid unnecessary repetition, various possible combination manners are not described again in the utility model.

[0041] Furthermore, various different embodiments of the present application can be combined with each other as long as they do not violate the spirit of the present application, and should be considered as disclosed in the present application.

Claims

1. A SLA type 3D printer detachable scraper structure, characterized in that, The utility model relates to a kind of adjustable scraper, including: Mounting plate (1), the horizontal adjusting plate (2) being connected with the bottom of mounting plate (1) by spacing adjustment mechanism, the first clamping seat (3) of fixed assembly in the lower surface of adjusting plate (2) is strip-shaped, the second clamping seat (4) is slid horizontally with the lower surface of adjusting plate (2) in the direction perpendicular to the length direction of first clamping seat (3), assembly on adjusting plate (2) is used to push second clamping seat (4) and slide close to first clamping seat (3) locking mechanism and the scraper (5) that can be fixed and clamped by first clamping seat (3) and second clamping seat (4); The opposite side wall of the first clamping seat (3) and the second clamping seat (4) is recessed and provided with the same length direction clamping groove (6), the side wall of the clamping groove (6) away from another clamping groove (6) is recessed and provided with tapered necking portion, the top of the scraper (5) is protruded and provided with the fixed strip matched with the clamping groove (6), and the tapered portion (7) matched with the tapered necking portion is provided on the both sides of the fixed strip.

2. The SLA type 3D printer detachable scraper structure according to claim 1, characterized in that, The spacing adjustment mechanism includes a plurality of spacing settings and vertically upward sliding through the adjusting plate (2) adjusting bolt (8), the bottom of the mounting plate (1) is fixedly assembled with a plurality of threaded sleeves (9) corresponding to the plurality of adjusting bolts (8), each adjusting bolt (8) is threadedly inserted into the corresponding threaded sleeve (9), and the adjusting bolt (8) is provided with a spring (10) abutting against the mounting plate (1) and the adjusting plate at both ends.

3. The SLA type 3D printer detachable scraper structure according to claim 1, characterized in that, The fixed strip includes a plurality of fixed blocks (11) arranged at equal intervals on the scraper (5) along the length direction of the scraper (5), and the first notch (12) is formed by the interval arrangement between adjacent two fixed blocks (11). The first clamping seat (3) is provided with the second notch (13) for the corresponding fixed block (11) to pass through, and the first notch (12) corresponds to the position between adjacent two second notches (13) on the first clamping seat (3).

4. The SLA type 3D printer detachable scraper structure according to claim 1, characterized in that, The locking mechanism includes at least one threaded seat (14) fixedly assembled on the adjusting plate (2) and located on the side of the second clamping seat (4) away from the first clamping seat (3), and the end of the locking bolt (15) can abut on the second clamping seat (4) is threadedly connected on each threaded seat (14).

5. The SLA type 3D printer detachable scraper structure according to claim 4, characterized in that, The top of the second clamping seat (4) is provided with a sliding block portion (16), and the lower surface of the adjusting plate (2) is recessed and provided with a sliding groove (17) matched with the sliding block portion (16).

6. The SLA type 3D printer detachable scraper structure according to claim 4, characterized in that, The threaded seat (14) is assembled on the end of the sliding groove (17) away from the first clamping seat (3).

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