Scraper replacement assembly

Abstract

The application provides a scraper replacement assembly, which comprises a spare scraper seat and a plurality of scraper positioning components arranged on a scraper arm; each scraper assembly comprises a scraper body and a locking block; each of the scraper positioning components comprises two oppositely arranged spring pins which clamp the outer side surface of the clamping end of the locking block of the scraper assembly; and one spare scraper piece is arranged on each support rod in the spare scraper seat. The scraper replacement assembly can quickly replace the scraper piece, can ensure the replacement speed and quality, and can not stop the machine, thereby not affecting the printing of the parts.

Description

Technical Field

[0001] This invention relates to the field of 3D printing technology, and in particular to a scraper replacement assembly. Background Technology

[0002] In recent years, 3D printing technology has been widely applied and promoted. Initially, 3D printing technology was mainly used to manufacture models and samples, such as in prototyping, medical, and aerospace fields. However, with continuous technological advancements and cost reductions, the application scope of 3D printing technology is constantly expanding.

[0003] In the industrial manufacturing sector, 3D printing technology has begun to achieve mass production. Many companies are using 3D printing to manufacture complex parts and mechanical structures to improve production efficiency and reduce costs. Furthermore, because 3D printing technology can create personalized products, it also has broad application prospects in customized manufacturing.

[0004] Currently, with the increasing demand in various fields, the forming width and forming height of additive manufacturing equipment are constantly expanding. The forming width has exceeded 1500mm×1500mm, and the height can even reach 2000mm.

[0005] Printing time has increased from tens of hours to hundreds of hours, or even months, which undoubtedly puts greater strain on equipment stability. Existing equipment uses two main types of squeegees: hard squeegees and soft squeegees. Hard squeegees are further divided into steel squeegees and ceramic squeegees, each with its own advantages and disadvantages. In terms of success rate, soft squeegees are clearly superior because their material allows for greater tolerance to errors; therefore, soft squeegees dominate the market.

[0006] However, the lifespan of the soft squeegee is its most fatal flaw, especially for large-scale equipment where printing can last for hundreds or even thousands of hours, making the squeegee's lifespan simply insufficient. Therefore, the challenge lies in rapidly replacing the soft squeegee during printing, ensuring both speed and quality. Furthermore, the printing process cannot be interrupted, thus preventing any disruption to the printing of parts. Summary of the Invention

[0007] In view of the shortcomings of the prior art described above, the technical problem solved by the present invention is to provide a scraper replacement assembly that can quickly replace the scraper.

[0008] To achieve the above and other related objectives, the present invention provides a scraper replacement assembly, comprising: a spare scraper holder and a plurality of scraper positioning components disposed on a scraper arm;

[0009] The number of scraper assemblies on the scraper arm is the same as the number of scraper positioning components. Each scraper assembly includes a scraper body and a locking block connected to the scraper body. Each scraper positioning component includes two opposing spring pins. The clamping end of the locking block of each scraper assembly is inserted between the two spring pins, and the two spring pins clamp the outer side of the clamping end of the locking block of the scraper assembly.

[0010] The spare scraper holder includes a base bracket and multiple support rods mounted on the base bracket. Each support rod holds a spare scraper component. The number of spare scraper components is the same as the number of scraper assemblies on the scraper arm. The structure of the spare scraper component is the same as the structure of the scraper assembly.

[0011] The scraper arm is moved to the front of the spare scraper seat. After the locking block of the spare scraper component on each support rod is aligned with the locking block on the corresponding scraper arm, the scraper arm is moved backward. During this process, the locking block of the spare scraper component pushes the locking block of the scraper assembly out between the two spring pins, and the clamping end of the locking block of the spare scraper component is inserted between the two spring pins.

[0012] Preferably, the other end of each locking block opposite to the clamping end is a positioning end, and the end face of the positioning end of the locking block is provided with a groove; the clamping end of any one locking block can be inserted into the groove of another locking block.

[0013] Furthermore, the support rod can be inserted into the groove of the locking block.

[0014] Furthermore, all the support rods are equally spaced; the number of scraper assemblies on the scraper arm is equal to the number of support rods; and the distance between two adjacent scraper assemblies on the scraper arm is equal to the distance between two adjacent support rods.

[0015] Preferably, the bottom of the base bracket is connected to the scraper seat groove.

[0016] As described above, the scraper replacement assembly of the present invention has the following beneficial effects:

[0017] In this scraper replacement assembly, when the two spring pins clamp the outer side of the clamping end of the locking block of the scraper assembly, the two spring pins provide a locking and positioning function for the locking block of the scraper assembly. When replacing the scraper body, the scraper arm is moved to the front of the spare scraper seat. After the locking block of the spare scraper on each support rod is aligned with the corresponding locking block on the scraper arm, the scraper arm is moved backward. During this process, the locking block of the spare scraper pushes against the locking block of the scraper assembly, and the spare scraper... The locking block of the spare scraper assembly pushes the locking block of the scraper assembly out between the two spring pins, and pushes the scraper assembly into the scraper seat groove of the spare scraper seat. The clamping end of the locking block of the spare scraper assembly is inserted between the two spring pins. The two spring pins lock and position the locking block of the spare scraper assembly, completing the replacement of the spare scraper assembly. The whole process is automatic and requires no manual operation. This scraper replacement assembly can quickly replace the scraper assembly, ensuring both speed and quality of replacement, and can do so without stopping the machine or affecting the printing of parts. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the internal structure of the scraper arm in this embodiment.

[0019] Figure 2 This is a side internal structure diagram of the spare scraper holder of the scraper replacement assembly in this embodiment.

[0020] Figure 3 This is a top view of the internal structure of the scraper arm in this embodiment.

[0021] Figure 4 This is a top view of the internal structure of the spare scraper holder of the scraper replacement assembly in this embodiment.

[0022] Explanation of icon numbers

[0023] 10 scraper arms

[0024] 11 Cover plate

[0025] 100 Spare scraper holders

[0026] 110 seat bracket

[0027] 111 Scraper Seat Groove

[0028] 120 support rod

[0029] 200 Scraper Positioning Component

[0030] 210 Spring Pin

[0031] 300 scraper assembly

[0032] 310 Scraper Body

[0033] 320 locking block

[0034] 321 Clamping end

[0035] 322 Positioning Terminal

[0036] 323 Groove

[0037] 400 spare scraper parts Detailed Implementation

[0038] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

[0039] Please refer to the accompanying drawings. It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of the invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of the invention, should still fall within the scope of the disclosed technical content. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and are not intended to limit the scope of the invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention.

[0040] like Figures 1 to 4 As shown, the scraper replacement assembly of this embodiment includes: a spare scraper holder 100 and a plurality of scraper positioning components 200 disposed on the scraper arm 10;

[0041] A scraper assembly 300 is mounted on the scraper arm 10. The number of scraper assemblies 300 is the same as the number of scraper positioning components 200. Each scraper assembly 300 includes a scraper body 310 and a locking block 320 connected to the scraper body 310. Each scraper positioning component 200 includes two opposing spring pins 210. The clamping end 321 of the locking block 320 of each scraper assembly 300 is inserted between the two spring pins 210, and the two spring pins 210 clamp the outer side of the clamping end 321 of the locking block 320 of the scraper assembly 300.

[0042] The spare scraper holder 100 includes a base bracket 110 and a plurality of support rods 120 disposed on the base bracket 110. Each support rod 120 holds a spare scraper component 400. The number of spare scraper components 400 is the same as the number of scraper assemblies 300 on the scraper arm 10. The structure of the spare scraper component 400 is the same as the structure of the scraper assembly 300. The spare scraper component 400 includes a scraper body 310 and a locking block 320 connected to the scraper body 310.

[0043] Move the scraper arm 10 to the front of the spare scraper seat 100. After the locking block 320 of the spare scraper component 400 on each support rod 120 is aligned with the locking block 320 on the corresponding scraper arm 10, during the process of moving the scraper arm 10 backward, the locking block 320 of the spare scraper component 400 pushes the locking block 320 of the scraper assembly 300 out between the two spring pins 210, and the clamping end 321 of the locking block 320 of the spare scraper component 400 is inserted between the two spring pins 210.

[0044] In this scraper replacement assembly, when two spring pins 210 clamp the outer side of the clamping end 321 of the locking block 320 of the scraper assembly 300, the two spring pins 210 lock and position the locking block 320 of the scraper assembly 300. When the scraper replacement assembly is used to replace the scraper body 310, the scraper arm 10 is moved to the front of the spare scraper seat 100. After the locking block 320 of the spare scraper piece 400 on each support rod 120 is aligned with the locking block 320 on the corresponding scraper arm 10, during the process of moving the scraper arm 10 backward, the locking block 320 of the spare scraper piece 400 pushes against the locking block 320 of the scraper assembly 300. The locking block 320 pushes the locking block 320 of the scraper assembly 300 out between the two spring pins 210, and pushes the scraper assembly 300 into the scraper seat groove 111 of the spare scraper seat 100. The clamping end 321 of the locking block 320 of the spare scraper 400 is inserted between the two spring pins 210. The two spring pins 210 lock and position the locking block 320 of the spare scraper 400, completing the replacement of the spare scraper 400 automatically without manual operation. This scraper replacement assembly can quickly replace the scraper, ensuring both speed and quality of replacement, and can do so without stopping the machine or affecting the printing of parts.

[0045] The spring pin 210 in this embodiment is a conventional structure. A cover plate 11 is also provided at the lower part of the scraper arm 10.

[0046] The other end of each locking block 320 opposite to the clamping end 321 is a positioning end 322, and a groove 323 is provided on the end face of the positioning end 322 of the locking block 320; the clamping end 321 of any locking block 320 can be inserted into the groove 323 of another locking block 320. This structure allows the clamping end 321 of the locking block 320 of the spare scraper 400 to be inserted into the groove 323 of the locking block 320 of the scraper assembly 300 during the rearward movement of the scraper arm 10, so that the locking block 320 of the spare scraper 400 can be aligned with the locking block 320 of the corresponding scraper assembly 300.

[0047] The support rod 120 can be inserted into the groove 323 of the locking block 320. This structure facilitates the stable mounting of the locking block 320 on the support rod 120. In this embodiment, the central axis of the support rod 120 is parallel to the horizontal direction.

[0048] For ease of manufacturing and replacement of the scraper body 310, all support rods 120 are equally spaced; the number of scraper assemblies 300 on the scraper arm 10 is equal to the number of support rods 120; and the distance between two adjacent scraper assemblies 300 on the scraper arm 10 is equal to the distance between two adjacent support rods 120.

[0049] The bottom of the base bracket 110 is connected to the scraper seat groove 111, into which the scraper assembly 300 is pushed down.

[0050] This invention provides a blade replacement component that allows for quick and stable replacement of the blade body during printing without requiring machine downtime, ensuring printing for extended periods.

[0051] The scraper replacement assembly of the present invention can effectively solve the problem of printing failure caused by damage to the main body during ultra-long printing of large additive manufacturing equipment.

[0052] The scraper replacement assembly of this invention enables long-term stable printing in large-scale additive manufacturing equipment, significantly improving the forming area and height of the equipment and substantially increasing the market share of medium-to-large-sized additive manufacturing equipment. It can better serve high-precision industries such as aerospace, automotive, medical, and military.

[0053] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A scraper replacement assembly, characterized in that, include: Spare scraper holder (100) and multiple scraper positioning components (200) provided on scraper arm (10); A scraper assembly (300) is mounted on the scraper arm (10). The scraper assembly (300) includes a scraper body (310) and a plurality of locking blocks (320) connected to the scraper body (310). The number of locking blocks (320) is the same as the number of scraper positioning components (200). Each scraper positioning component (200) includes two opposing spring pins (210). The clamping end (321) of the locking block (320) of each scraper assembly (300) is inserted between the two spring pins (210), and the two spring pins (210) clamp the outer side of the clamping end (321) of the locking block (320) of the scraper assembly (300). The spare scraper holder (100) includes a base bracket (110) and a plurality of support rods (120) disposed on the base bracket (110). Each support rod (120) holds a spare scraper component (400). The spare scraper component (400) includes a scraper body (310) and a plurality of locking blocks (320) connected to the scraper body (310). The number of locking blocks (320) of the spare scraper component (400) is the same as the number of locking blocks (320) of the scraper assembly (300) on the scraper arm (10). The structure of the spare scraper component (400) is the same as the structure of the scraper assembly (300). Move the scraper arm (10) to the front of the spare scraper seat (100). After the locking block (320) of the spare scraper component (400) on each support rod (120) is aligned with the corresponding locking block (320) on the scraper arm (10), during the process of moving the scraper arm (10) backward, the locking block (320) of the spare scraper component (400) pushes the locking block (320) of the scraper assembly (300) out between the two spring pins (210), and the clamping end (321) of the locking block (320) of the spare scraper component (400) is inserted between the two spring pins (210).

2. The scraper replacement assembly according to claim 1, characterized in that: The other end of each locking block (320) opposite to the clamping end (321) is a positioning end (322), and a groove (323) is provided on the end face of the positioning end (322) of the locking block (320); the clamping end (321) of any one locking block (320) can be inserted into the groove (323) of another locking block (320).

3. The scraper replacement assembly according to claim 2, characterized in that: The support rod (120) can be inserted into the groove (323) of the locking block (320).

4. The scraper replacement assembly according to claim 3, characterized in that: All the support rods (120) are equally spaced; the number of locking blocks (320) of the scraper assembly (300) on the scraper arm (10) is equal to the number of support rods (120); the distance between two adjacent locking blocks (320) on the scraper arm (10) is equal to the distance between two adjacent support rods (120).

5. The scraper replacement assembly according to claim 1, characterized in that: The bottom of the seat bracket (110) is connected to the scraper seat groove (111).

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