Product forming cooling device for 3D printing

Abstract

The invention discloses a product forming and cooling device for 3D printing, and relates to the technical field of 3D printing product cooling, the product forming and cooling device for 3D printing comprises a rectangular mounting plate, the bottom of the rectangular mounting plate is fixedly connected with a supporting frame, the top of the rectangular mounting plate is provided with a guide module and a cooling module, and the guide module is located below the cooling module; and the cooling module comprises a mounting frame, the mounting frame is fixedly connected to the top of the rectangular mounting plate, and three circular holes are formed in the top of the mounting frame. According to the product forming and cooling device for 3D printing, a 3D printing product which is just manufactured can be rapidly cooled, the 3D printing product can be rapidly cured, the shape and size of the product are stabilized, the expected physical performance index of the product is achieved, deformation is prevented, meanwhile, filtering holes are formed in the cooling module, and the cooling effect is good. And the technical effects that sucked air can be filtered, impurities in the air are prevented from being blown to the surface of a 3D printing product, and the quality of the 3D printing product is improved are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of cooling of 3D printed products, and in particular to a product molding cooling device for 3D printed products. Background Art

[0002] 3D printing, also known as additive manufacturing (AM), is a technology that creates physical parts based on three-dimensional CAD data by adding material layer by layer. The historical development of 3D printing technology has been one of continuous advancement and expansion. From early rapid prototyping techniques to its widespread application today, 3D printing technology has found applications in design and manufacturing fields such as jewelry design, footwear design and manufacturing, industrial design, architectural design, engineering design and construction, and automotive design and manufacturing, as well as in medical fields such as aerospace and dentistry.

[0003] In the field of 3D printing technology, rapid cooling and solidification of products after molding is a key step in ensuring product dimensional accuracy and mechanical properties. Currently, the most common cooling method is an air cooling system, which uses a fan or nozzle to blow air directly onto the surface of the printed product to achieve cooling. However, existing technologies have the following significant drawbacks:

[0004] Conventional cooling devices directly draw unfiltered air from the environment for injection. Dust particles, fibers and other impurities suspended in the air will adhere to the high-temperature softened surface of the printed product (especially ABS / PLA materials in FDM process) with the airflow, causing defects such as pitting and bumps on the product surface. Experimental data shows that when the PM2.5 concentration in the air is greater than 75μg / m 3 When the product surface defect rate increases by more than 40%.

[0005] Existing nozzles often use a single, centralized air supply system, which can easily cause localized overcooling and contraction in the product while leaving other areas undercooled, leading to warping and deformation. For example, during the cooling process of large PLA components, deformation can reach 0.3 mm / m when the temperature difference exceeds 15°C. Unfiltered impurities can clog the nozzle's micropores (especially for fine nozzles with apertures less than 0.5 mm), resulting in uneven airflow distribution. One experiment showed that airflow uniformity in an unfiltered system decreased by 60% after eight hours of continuous operation. Summary of the Invention

[0006] The present invention discloses a product molding cooling device for 3D printing, which aims to solve the technical problem that during the cooling process of a newly produced 3D printed product, the existing device does not filter dust and impurities in the air and directly sprays out cooling air, thereby reducing the quality of the 3D printed product.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] A cooling device for 3D printing product molding includes a rectangular mounting plate, the bottom of the rectangular mounting plate is fixedly connected to a support frame, and the top of the rectangular mounting plate is provided with a guide module and a cooling module, the guide module is located below the cooling module, the cooling module includes a mounting frame, the mounting frame is fixedly connected to the top of the rectangular mounting plate, and three circular holes are opened on the top of the mounting frame, the guide module includes a concave frame, the concave frame is fixedly connected to the top of the rectangular mounting plate, and two circular holes are opened on the outer walls of both sides of the concave frame.

[0009] By providing a guide module, the guide module can guide the transportation of the 3D printed product that has just been produced, and during the guiding and transportation process, the integrity of the product shape can be ensured to avoid deformation of the product; by providing a cooling module, the 3D printed product that has just been produced can be quickly cooled down. At the same time, the cooling module is provided with filter holes to filter the inhaled air, thereby avoiding impurities in the air from being blown onto the surface of the 3D printed product, thereby affecting the quality of the 3D printed product.

[0010] In a preferred embodiment, two L-shaped fixing plates are fixedly connected to the top of the mounting frame, and the outer walls on opposite sides of the two L-shaped fixing plates are fixedly connected to the same connecting bin, and a mounting hole is provided on the top of one of the L-shaped fixing plates; an air pump is fixedly connected to the inside of the mounting hole, and the input end of the air pump is provided with a delivery pipe, one end of the delivery pipe is fixedly connected to a filter head, and a plurality of filter holes are provided on the outer wall of the filter head; an output end of the air pump is provided with an output pipe, the output pipe is connected with the interior of the connecting bin, and three circular grooves are provided at the bottom of the connecting bin, and rubber hoses are provided inside the three circular grooves, and the outer walls of the three rubber hoses are respectively in contact with the inner walls of the three circular holes; three connecting bins are fixedly connected to the inner wall of the top of the mounting frame, and a plurality of rubber nozzles are provided at the bottom of the three connecting bins, and one end of the three rubber hoses is respectively connected to the interior of the three connecting bins.

[0011] By providing a cooling module, the cooling module is suitable for quickly cooling the 3D printed products that have just been produced. That is, when the cooling module is used, the 3D printed products that have just been produced can be quickly cooled and solidified, and the shape and size of the products can be stabilized to achieve the expected physical performance indicators and prevent deformation. At the same time, the cooling module is provided with filter holes to filter the inhaled air, thereby preventing impurities in the air from being blown onto the surface of the 3D printed products, thereby improving the quality of the 3D printed products.

[0012] In a preferred embodiment, the inner walls of the two circular holes are movably connected to a rotating rod, the outer walls of the two rotating rods are fixedly connected to a rotating roller, and the outer walls of the two rotating rollers are provided with the same guide belt, and one end of the two rotating rods is fixedly connected to a driven wheel; a circular hole is opened on the outer wall of one side of the concave frame, and a driving motor is fixedly connected to the inside of the circular hole, and the output end of the driving motor is connected to the driving wheel through a coupling, and the outer walls of the driving wheel and the two driven wheels are provided with the same connecting belt, and two support plates are fixedly connected to the inner wall of the opposite side of the concave frame, and the tops of the two support plates are in contact with the inner wall of the guide belt.

[0013] By setting up a guide module, the guide module is suitable for the link of conveying and guiding 3D printed products. That is, the guide module can limit its direction when in use, prevent it from bending, twisting and deformation during transportation, and help maintain the flatness and straightness of the product. At the same time, it can allow the product to be transported in an orderly manner according to the set route, reducing stagnation and rework caused by improper product positioning, making the entire production process smoother and improving production efficiency.

[0014] As can be seen from the above, the 3D printing product molding cooling device provided by the present invention can quickly cool down the 3D printed products that have just been produced, so that they can be quickly solidified, stabilize the shape and size of the products, enable them to achieve the expected physical performance indicators, and prevent deformation. At the same time, the cooling module is provided with filter holes, which can filter the inhaled air, avoiding impurities in the air from being blown onto the surface of the 3D printed products, thereby improving the quality of the 3D printed products. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of a 3D printing product molding cooling device proposed by the present invention.

[0016] Figure 2 This is a front view of the overall structure of a 3D printing product molding cooling device proposed by the present invention.

[0017] Figure 3 This is a schematic diagram of the cooling module structure of a 3D printing product molding cooling device proposed by the present invention.

[0018] Figure 4 This is a schematic diagram of the guide module structure of a 3D printing product molding cooling device proposed by the present invention.

[0019] Figure 5 for Figure 3 A local enlarged schematic diagram of point A in the middle.

[0020] In the accompanying drawings: 1. Rectangular mounting plate; 2. Support frame; 3. Guide module; 301. Concave frame; 302. Rotating roller; 303. Rotating rod; 304. Support plate; 305. Driving motor; 306. Active pulley; 307. Connecting belt; 308. Driven pulley; 309. Guide belt; 4. Cooling module; 401. Mounting frame; 402. Output pipe; 403. L-shaped fixing plate; 404. Connecting chamber; 405. Rubber hose; 406. Connecting chamber; 407. Rubber nozzle; 408. Filter hole; 409. Filter head; 410. Delivery pipe; 411. Mounting hole; 412. Vacuum pump. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] In the field of 3D printing technology, rapid cooling and solidification of products after molding is a key step in ensuring product dimensional accuracy and mechanical properties. Currently, the most common cooling method is an air cooling system, which uses a fan or nozzle to blow air directly onto the surface of the printed product to achieve cooling. However, existing technologies have the following significant drawbacks:

[0023] Conventional cooling devices directly draw unfiltered air from the environment for injection. Dust particles, fibers and other impurities suspended in the air will adhere to the high-temperature softened surface of the printed product (especially ABS / PLA materials in FDM process) with the airflow, causing defects such as pitting and bumps on the product surface. Experimental data shows that when the PM2.5 concentration in the air is greater than 75μg / m 3 The product surface defect rate increases by more than 40%. Based on this, the present invention discloses a 3D printing product molding cooling device, which is mainly used in scenarios where existing devices do not filter dust and impurities in the air during the cooling process of newly produced 3D printed products, and directly spray cooling air, which reduces the quality of 3D printed products.

[0024] Example 1

[0025] Reference Figure 1-Figure 5 A cooling device for 3D printing product molding includes a rectangular mounting plate 1, the bottom of the rectangular mounting plate 1 is fixedly connected to a support frame 2, and the top of the rectangular mounting plate 1 is provided with a guide module 3 and a cooling module 4, the guide module 3 is located below the cooling module 4, the cooling module 4 includes a mounting frame 401, the mounting frame 401 is fixedly connected to the top of the rectangular mounting plate 1, and three circular holes are opened on the top of the mounting frame 401, the guide module 3 includes a concave frame 301, the concave frame 301 is fixedly connected to the top of the rectangular mounting plate 1, and two circular holes are opened on both sides of the outer wall of the concave frame 301.

[0026] Reference Figure 1-Figure 3 In a preferred embodiment, two L-shaped fixing plates 403 are fixedly connected to the top of the installation frame 401, and the outer walls of the opposite sides of the two L-shaped fixing plates 403 are fixedly connected to the same connecting chamber 404, and a mounting hole 411 is opened on the top of one of the L-shaped fixing plates 403; an air pump 412 is fixedly connected to the inside of the mounting hole 411, and a delivery pipe 410 is provided at the input end of the air pump 412, and a filter head 409 is fixedly connected to one end of the delivery pipe 410, and a plurality of filter holes 408 are opened on the outer wall of the filter head 409; the air pump An output tube 402 is provided at the output end of 412, and the output tube 402 is connected to the interior of the connecting chamber 404, and three circular grooves are provided at the bottom of the connecting chamber 404, and rubber hoses 405 are provided inside the three circular grooves, and the outer walls of the three rubber hoses 405 are in contact with the inner walls of the three circular holes respectively; three connecting chambers 406 are fixedly connected to the top inner wall of the mounting frame 401, and multiple rubber nozzles 407 are provided at the bottom of the three connecting chambers 406, and one end of the three rubber hoses 405 is respectively connected to the interior of the three connecting chambers 406.

[0027] Example 2

[0028] Reference Figure 1-Figure 5 A cooling device for 3D printing product molding includes a rectangular mounting plate 1, the bottom of the rectangular mounting plate 1 is fixedly connected to a support frame 2, and the top of the rectangular mounting plate 1 is provided with a guide module 3 and a cooling module 4, the guide module 3 is located below the cooling module 4, the cooling module 4 includes a mounting frame 401, the mounting frame 401 is fixedly connected to the top of the rectangular mounting plate 1, and three circular holes are opened on the top of the mounting frame 401, the guide module 3 includes a concave frame 301, the concave frame 301 is fixedly connected to the top of the rectangular mounting plate 1, and two circular holes are opened on both sides of the outer wall of the concave frame 301.

[0029] Reference Figure 1-Figure 3In a preferred embodiment, two L-shaped fixing plates 403 are fixedly connected to the top of the installation frame 401, and the outer walls of the opposite sides of the two L-shaped fixing plates 403 are fixedly connected to the same connecting chamber 404, and a mounting hole 411 is opened on the top of one of the L-shaped fixing plates 403; an air pump 412 is fixedly connected to the inside of the mounting hole 411, and a delivery pipe 410 is provided at the input end of the air pump 412, and a filter head 409 is fixedly connected to one end of the delivery pipe 410, and a plurality of filter holes 408 are opened on the outer wall of the filter head 409; the air pump An output tube 402 is provided at the output end of 412, and the output tube 402 is connected to the interior of the connecting chamber 404, and three circular grooves are provided at the bottom of the connecting chamber 404, and rubber hoses 405 are provided inside the three circular grooves, and the outer walls of the three rubber hoses 405 are in contact with the inner walls of the three circular holes respectively; three connecting chambers 406 are fixedly connected to the top inner wall of the mounting frame 401, and multiple rubber nozzles 407 are provided at the bottom of the three connecting chambers 406, and one end of the three rubber hoses 405 is respectively connected to the interior of the three connecting chambers 406.

[0030] The difference between Example 2 and Example 1 is that:

[0031] Reference Figure 1 、 Figure 2 and Figure 4 In a preferred embodiment, the inner walls of the two circular holes are connected to a rotating rod 303 with a bearing, the outer walls of the two rotating rods 303 are fixedly connected to a rotating roller 302, and the outer walls of the two rotating rollers 302 are provided with the same guide belt 309, and one end of the two rotating rods 303 is fixedly connected to a driven wheel 308; a circular hole is opened on the outer wall of one side of the concave frame 301, and a driving motor 305 is fixedly connected to the inside of the circular hole, and the output end of the driving motor 305 is connected to the driving wheel 306 through a coupling, and the outer walls of the driving wheel 306 and the two driven wheels 308 are provided with the same connecting belt 307, and two support plates 304 are fixedly connected to the inner wall of the opposite side of the concave frame 301, and the tops of the two support plates 304 are in contact with the inner wall of the guide belt 309.

[0032] Working principle: Place the 3D printed product that has just been produced on the guide module 3, start the drive motor 305, and the drive motor 305 drives the driving wheel 306 to start rotating. Since the outer wall of the driving wheel 306 and the outer walls of the two driven wheels 308 are connected by the connecting belt 307, the two driven wheels 308 also start to rotate. The two driven wheels 308 drive the two rotating rods 303 and the two rotating rollers 302 to rotate. Under the action of the two rotating rollers 302, the guide belt 309 starts to run;

[0033] Turn on the vacuum pump 412, and the inhaled air is filtered through the filter holes 408 on the filter head 409. After filtration, it enters the interior of the vacuum pump 412 through the delivery pipe 410, and then is delivered to the interior of the connecting chamber 404 through the output pipe 402. Then, it enters the interiors of the three connecting chambers 406 through three rubber hoses 405 respectively, and then is blown out through multiple rubber nozzles 407 to quickly cool down the 3D printed product.

[0034] In summary, the 3D printing product molding cooling device provided by the present invention can quickly cool down the 3D printed product that has just been produced, so that it can quickly solidify, stabilize the shape and size of the product, enable it to achieve the expected physical performance indicators, and prevent deformation. At the same time, the cooling module is provided with filter holes, which can filter the inhaled air, avoiding impurities in the air from being blown onto the surface of the 3D printed product, thereby improving the quality of the 3D printed product.

[0035] The above are only preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Replacement may be partial structure, device, method step replacement, or a complete technical solution. Equivalent replacement or modification based on the technical solution and inventive concept of the present invention shall be covered by the scope of protection of the present invention.

[0036] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0037] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A cooling device for 3D printing product molding, comprising a rectangular mounting plate (1), characterized in that: The bottom of the rectangular mounting plate (1) is fixedly connected to a support frame (2), and the top of the rectangular mounting plate (1) is provided with a guide module (3) and a cooling module (4), wherein the guide module (3) is located below the cooling module (4), and the cooling module (4) comprises a mounting frame (401), wherein the mounting frame (401) is fixedly connected to the top of the rectangular mounting plate (1), and three circular holes are provided on the top of the mounting frame (401), and the guide module (3) comprises a concave frame (301), wherein the concave frame (301) is fixedly connected to the top of the rectangular mounting plate (1), and two circular holes are provided on both side outer walls of the concave frame (301).

2. A 3D printing product molding cooling device according to claim 1, characterized in that: Two L-shaped fixing plates (403) are fixedly connected to the top of the installation frame (401), and the outer walls on opposite sides of the two L-shaped fixing plates (403) are fixedly connected to the same connection compartment (404), and a mounting hole (411) is opened on the top of one of the L-shaped fixing plates (403).

3. A 3D printing product molding cooling device according to claim 2, characterized in that: An air pump (412) is fixedly connected to the interior of the mounting hole (411), a delivery pipe (410) is provided at the input end of the air pump (412), a filter head (409) is fixedly connected to one end of the delivery pipe (410), and a plurality of filter holes (408) are provided on the outer wall of the filter head (409).

4. A 3D printing product molding cooling device according to claim 3, characterized in that: The output end of the air pump (412) is provided with an output pipe (402), which is connected to the interior of the connecting chamber (404), and the bottom of the connecting chamber (404) is provided with three circular grooves, and the interiors of the three circular grooves are each provided with a rubber hose (405), and the outer walls of the three rubber hoses (405) are in contact with the inner walls of the three circular holes respectively.

5. A 3D printing product molding cooling device according to claim 4, characterized in that: Three communication chambers (406) are fixedly connected to the top inner wall of the installation frame (401), and a plurality of rubber nozzles (407) are provided at the bottom of each of the three communication chambers (406), and one end of each of the three rubber hoses (405) is respectively connected to the interior of the three communication chambers (406).

6. The 3D printing product molding cooling device according to claim 1, characterized in that: The inner walls of the two circular holes are movably connected to a rotating rod (303), and the outer walls of the two rotating rods (303) are fixedly connected to a rotating roller (302).

7. A 3D printing product molding cooling device according to claim 6, characterized in that: The outer walls of the two rotating rollers (302) are provided with a same guide belt (309), and one end of the two rotating rods (303) is fixedly connected with a driven wheel (308).

8. The 3D printing product molding cooling device according to claim 7, characterized in that: A circular hole is formed on one outer wall of the concave frame (301), a driving motor (305) is fixedly connected to the inside of the circular hole, an output end of the driving motor (305) is connected to a driving wheel (306) via a coupling, and the outer walls of the driving wheel (306) and the two driven wheels (308) are provided with a common connecting belt (307).

9. The 3D printing product molding cooling device according to claim 8, characterized in that: Two support plates (304) are fixedly connected to the inner wall of the opposite side of the concave frame (301), and the tops of the two support plates (304) are in contact with the inner wall of the guide belt (309).

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