A microjet flexible circuit 3D printer

Abstract

This utility model discloses a micro-jet flexible circuit 3D printer, belonging to the field of 3D printing technology. The 3D printer includes a printer box, printing components, mounting shell, heat-conducting components, cooling fan, and cleaning components. The cleaning components are specifically designed with a moving plate, a scraper, and a pull handle. Each set of scrapers is attached to the upper and lower sides of a single heat-conducting fin. By pulling the pull handle, the moving plate can be moved laterally to simultaneously scrape away dust from multiple fins. There is no need to disassemble the mounting shell, and operators can quickly complete the cleaning operation. Compared with the traditional disassembly cleaning method, it significantly shortens maintenance time and reduces labor costs. Moreover, the design of the scraper attached to the upper and lower sides of the fins can avoid cleaning dead corners and reduce the impact of dust residue on heat dissipation.

Description

Technical Field

[0001] This utility model belongs to the field of 3D printing technology, specifically, it relates to a micro-jet flexible circuit 3D printer. Background Technology

[0002] Flexible electronic micro-jet 3D printing technology, as a rapid additive manufacturing printing technology, has many advantages such as non-contact operation, high deposition accuracy, wide range of ink materials, and controllable precision. It is becoming an ideal fabrication technology for precision electronic components such as flexible circuit boards, solar cells, thin-film transistors, microsensors, and electronic skin. It can realize additive manufacturing of various functional materials, including metals, conductors, insulators, and composite materials. Due to its non-contact method and the ability to control the height between the nozzle and the substrate by 10 to 15 mm, it can adapt to printing on complex curved surfaces, including curved surfaces. The multi-nozzle array structure can realize the printing and packaging of flexible electronic devices in one go, solving the problem of multiple equipment and processes in traditional manufacturing.

[0003] Chinese utility model patent CN215320672U discloses a micro-jetting device for a flexible circuit 3D printer, including a mounting frame. A cooling device and a fixing block are fixedly mounted on the lower surface of the mounting frame. A mounting groove is formed at the center of the lower surface of the fixing block, and a connecting column is inserted into the mounting groove. A locking bolt is threaded through and screwed onto the right surface of the fixing block. A threaded groove is formed on the lower surface of the connecting column, and a threaded column is threaded through the threaded groove. A micro-jetting nozzle is fixedly mounted on the lower surface of the threaded column. A material tube is fixedly mounted at the feed end of the micro-jetting nozzle, and the material tube penetrates the outer surface of the threaded column. A first sliding groove is symmetrically formed on the lower surface of the fixing block. Two sliding rods are slidably mounted left and right in each sliding groove. A sealing plate is fixedly mounted between the two sliding rods, and the inner surface of the sealing plate is in contact with the groove.

[0004] While this device can effectively prevent dust from entering the nozzle when the microjet nozzle is idle, existing microjet flexible circuit 3D printers generate friction during the printing process due to the material flow inside the nozzle and the relative movement between the nozzle and the printing material. Excessive nozzle temperature can change the viscosity and fluidity of the material. The existing heat dissipation method involves installing heat dissipation fins on the outer wall of the nozzle tube in conjunction with a fan for heat dissipation. However, after prolonged use, dust and other impurities will remain on the surface of the heat dissipation fins, resulting in poor heat dissipation. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] To address the problem mentioned in the background art that dust and other impurities remain on the surface of the heat dissipation fins after prolonged use, resulting in poor heat dissipation performance, this utility model adopts the following technical solution.

[0007] A micro-jet flexible circuit 3D printer includes a printer housing with a control cabinet on one side. A door is rotatably connected to the printer housing. A printing assembly is installed inside the printer housing. The printing assembly includes a mounting bracket with a print stage that can move laterally forward and backward detachably connected to the bottom of the mounting bracket. A movable bracket that can rise and fall is mounted on the mounting bracket. A print head is detachably connected to the bottom of the movable bracket, and a feed tube is detachably connected to the print head. A mounting housing is detachably connected to the bottom of the movable bracket. The feed tube passes through the mounting housing and is located inside the mounting housing. A heat-conducting component is sleeved on the outer wall of the feed tube. A cooling fan is detachably connected to the outer wall of the mounting housing. A cleaning component is installed inside the mounting housing to scrape off dust from the mounting housing.

[0008] Preferably, filter screens are detachably connected to both sides of the mounting housing, and the filter screens filter the air entering the mounting housing from the outside.

[0009] Preferably, filter screens are detachably connected to both sides of the mounting housing, and a partition plate is fixedly connected to the outer wall of the heat-conducting component. The axis of the partition plate is perpendicular to the axis of the cooling fans on both sides. The partition plate divides the interior of the mounting housing into two parts, and the air intake on both sides discharges the heat in the two parts.

[0010] Preferably, the heat-conducting component encloses the heat-conducting pipe and heat-conducting fins, and multiple heat-conducting fins are fixedly connected to the outer wall of the heat-conducting pipe sleeve, and a partition plate is fixedly connected to the outer wall of the heat-conducting pipe sleeve.

[0011] Preferably, the cleaning component includes a movable plate, a scraper, a semi-circular plate, and a pull handle. The movable plate is disposed on both sides inside the mounting housing. Multiple sets of scrapers are fixedly connected to the opposite surfaces of the two movable plates. Each set of scrapers consists of two scrapers, which are attached to the upper and lower outer walls of a heat sink fin. The semi-circular plate is disposed at the bottom of the two scrapers. A sliding plate that protrudes from the mounting housing is fixedly connected to the outer wall of the semi-circular plate. The pull handle is disposed at the end of the sliding plate. Pulling the pull handle causes the semi-circular plate to move laterally, which in turn causes the two movable plates to move laterally, and the scrapers scrape the upper and lower outer walls of the heat sink fin.

[0012] Preferably, a discharge track is fixedly connected to the bottom of the mounting housing, and the discharge track is connected to the interior of the mounting housing, so that the dust is discharged outward.

[0013] Preferably, the mounting bracket is detachably connected to a horizontally arranged sliding rail, and a movable bracket is slidably connected to the sliding rail. The movable bracket has a built-in drive component, which enables the movable bracket to move laterally on the sliding rail.

[0014] Preferably, servo motors are detachably connected to both sides of the mounting bracket, and drive screws are detachably connected to the rotating ends of the servo motors on both sides. The sliding rail is threadedly connected to the outer wall of the drive screw, and sliding rods are detachably connected to both sides of the mounting bracket. The sliding rail is slidably connected to the outer wall of the sliding rod.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. The cleaning components feature a specially designed structure with a moving plate, scraper, and pull handle. Each set of scrapers is attached to the upper and lower sides of a single heat-conducting fin. By pulling the handle, the moving plate can be moved laterally to simultaneously remove dust from multiple fins. There is no need to disassemble the housing, allowing operators to quickly complete the cleaning operation. Compared with traditional disassembly cleaning methods, this significantly shortens maintenance time and reduces labor costs. Furthermore, the design of the scraper being attached to the upper and lower sides of the fins avoids cleaning dead corners and reduces the impact of dust residue on heat dissipation.

[0017] 2. The removable filter screens on both sides of the housing can filter the air entering the housing, reducing dust adhesion to the surface of the heat-conducting fins. Compared with heat dissipation systems without dustproof structures, this can prevent dust accumulation from forming a heat insulation layer and reducing heat conduction efficiency, ensuring long-term stable operation of heat dissipation components, reducing equipment downtime due to heat dissipation failure, and extending the continuous working time of the equipment.

[0018] 3. The discharge track at the bottom of the housing is connected to the interior. Dust scraped off by the cleaning components can fall naturally into the track by gravity and be discharged outward, forming a complete closed loop of cleaning, collection and discharge. This design avoids dust accumulation inside the housing and prevents dust from adhering to the fins or clogging the fan inlet, reducing heat dissipation failures caused by dust accumulation. At the same time, it eliminates the need for frequent manual cleaning of the inside of the housing, further reducing maintenance workload.

[0019] 4. Through the efficient temperature control and dustproof design of the heat dissipation components and the dust removal and discharge function of the cleaning components, the aging and failure of components caused by excessive temperature and dust accumulation inside the equipment can be reduced, and the wear and tear of core components such as servo motors, drive screws, and cooling fans can be reduced. At the same time, the easy maintenance of each detachable component can solve minor equipment faults in a timely manner and prevent the faults from escalating and causing irreversible damage to the equipment. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a micro-jet flexible circuit 3D printer according to the present invention;

[0021] Figure 2 This is a schematic diagram of the printing component structure in this utility model;

[0022] Figure 3 This is a front view structural diagram of the printing component in this utility model;

[0023] Figure 4 This is a schematic diagram of the movable support structure in this utility model;

[0024] Figure 5 This is a schematic diagram of the heat dissipation fin structure in this utility model;

[0025] Figure 6 In this utility model Figure 5 Enlarged structural diagram at point A in the middle.

[0026] The correspondence between the labels and component names in the attached figures is as follows:

[0027] 100. Printer box; 101. Box door; 102. Control cabinet;

[0028] 200. Mounting bracket; 201. Printing table; 202. Servo motor; 203. Drive screw; 204. Sliding rod; 205. Sliding rail;

[0029] 300. Printer nozzle; 301. Movable bracket; 302. Feed pipe; 303. Cooling fan; 304. Heat-conducting component; 305. Mounting housing; 306. Filter screen; 307. Divider plate; 308. Movable plate; 309. Scraper plate; 310. Semi-circular plate; 311. Pull-out handle; 312. Discharge track. Detailed Implementation

[0030] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0031] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0032] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments. The present invention provides the following embodiments.

[0033] like Figure 1 The diagram shown is a schematic diagram of a micro-jet flexible circuit 3D printer according to a preferred embodiment of the present invention. The micro-jet flexible circuit 3D printer of this embodiment includes a printer box 100, a control cabinet 102 is provided on one side of the printer box 100, a box door 101 is rotatably connected to the printer box 100, and a printing component is installed inside the printer box 100. In this embodiment, the printing component prints the finished product by transmitting the drawing to the control cabinet 102, and the printed finished product can be taken out by opening the box door 101.

[0034] like Figure 2 as well as Figure 3 As shown, this is a schematic diagram of the printing component structure in this embodiment. The printing component includes a mounting bracket 200, a printing table 201 that can move horizontally back and forth is detachably connected to the bottom of the mounting bracket 200, a movable bracket 301 that can rise and fall is mounted on the mounting bracket 200, a printing nozzle 300 is detachably connected to the bottom of the movable bracket 301, and a feed pipe 302 is detachably connected to the printing nozzle 300. In this embodiment, the printing material is transported to the printing nozzle 300 through the feed pipe 302 and sprayed above the printing table 201 for printing. The printing of various parts of the product is achieved by the left-right and up-down movement of the movable bracket 301 and the front-back and horizontal movement of the printing table 201.

[0035] like Figure 2 as well as Figure 3 As shown, a horizontally arranged sliding rail 205 is detachably connected to the mounting bracket 200. A movable bracket 301 is slidably connected to the sliding rail 205. The movable bracket 301 has a built-in drive assembly, which enables the movable bracket 301 to move laterally on the sliding rail 205. Servo motors 202 are detachably connected to both sides of the mounting bracket 200. Drive screws 203 are detachably connected to the rotating ends of the two servo motors 202. The sliding rail 205 is threadedly connected to the outer wall of the drive screw 203. Sliding rods 204 are detachably connected to both sides of the mounting bracket 200. The sliding rail 205 is slidably connected to the outer wall of the sliding rod 204. In this embodiment, the synchronous rotation of the two servo motors 202 causes the two drive screws 203 to rotate, thereby enabling the sliding rail 205 to move up and down along the length direction of the drive screws 203 and the sliding rods 204.

[0036] like Figure 4 as well as Figure 5As shown, this is a schematic diagram of the heat dissipation component structure in this embodiment. A mounting housing 305 is detachably connected to the lower part of the movable bracket 301. A feed pipe 302 passes through the mounting housing 305 and is located inside the mounting housing 305. A heat-conducting component 304 is sleeved on the outer wall of the feed pipe 302. Filter plates 306 are detachably connected to both sides of the mounting housing 305. A cooling fan 303 is detachably connected to the outer wall of the mounting housing 305. A partition plate 307 is fixedly connected to the outer wall of the heat-conducting component 304. The axis of the partition plate 307 is perpendicular to the axes of the cooling fans 303 on both sides. The partition plate 307... The interior of the housing 305 is divided into two parts. In this embodiment, the external air is filtered by the cooling fan 303 through the filter plates 306 on both sides and then enters the interior of the housing 305. The partition plate 307 can reduce the space inside the housing 305, and the air intake on both sides only carries away heat from one side of the heat conductor 304. This allows the air entering the housing 305 from both sides to fully contact the heat conductor 304. The design of the air intake on both sides makes the air volume larger and the heat dissipation effect better. The filter plate 306 can reduce the dust on the heat conductor 304 and can be disassembled for cleaning or replacement.

[0037] like Figure 5 as well as Figure 6 As shown, this is a schematic diagram of the cleaning component structure in this embodiment. The heat-conducting component 304 encloses the heat-conducting pipe and heat-conducting fins. Multiple heat-conducting fins are fixedly connected to the outer wall of the heat-conducting pipe sleeve. A partition plate 307 is fixedly connected to the outer wall of the heat-conducting pipe sleeve. Moving plates 308 are slidably connected to both sides of the inner side of the mounting housing 305. Multiple sets of scraping plates 309 are fixedly connected to the opposite surfaces of the two moving plates 308. Each set of scraping plates 309 consists of two scraping plates. The two scraping plates 309 are attached to the upper and lower outer walls of one heat-conducting fin. A semi-circular plate 310 is fixedly connected to the bottom of 309. A sliding plate that protrudes from the mounting housing 305 is fixedly connected to the outer wall of the semi-circular plate 310. A pull handle 311 is fixedly connected to the end of the sliding plate. In this embodiment, by pulling the pull handle 311, the semi-circular plate 310 is moved laterally, which in turn drives the two side moving plates 308 to move laterally. The scraping plate 309 can clean the upper and lower sides of multiple heat dissipation fins and scrape off the dust, thereby avoiding excessive dust on the heat conduction component 304, which would limit the heat dissipation effect.

[0038] like Figure 5 As shown, a discharge track 312 is fixedly connected to the bottom of the mounting housing 305. The discharge track 312 is connected to the interior of the mounting housing 305. In this embodiment, the dust scraped off by the cleaning component falls above the discharge track 312 and is discharged outward, which can prevent dust from accumulating inside the mounting housing 305 and affecting the heat dissipation effect.

[0039] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present utility model. It should not be construed that the specific implementation of the present utility model is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present utility model, and all such deductions or substitutions should be considered to fall within the scope of protection defined by the claims submitted by the present utility model.

Claims

1. A micro-jet flexible circuit 3D printer, comprising a printer box (100), one side of the printer box (100) is provided with a control cabinet (102), the printer box (100) is rotatably connected with a box door (101), and a printing assembly is installed in the inside of the printer box (100), characterized in that, The printing assembly includes a mounting bracket (200), a printing table (201) that can move laterally back and forth is detachably connected to the bottom of the mounting bracket (200), a movable bracket (301) that can be raised and lowered is mounted on the mounting bracket (200), a print head (300) is detachably connected to the bottom of the movable bracket (301), a feed tube (302) is detachably connected to the print head (300), a mounting housing (305) is detachably connected to the bottom of the movable bracket (301), the feed tube (302) passes through the mounting housing (305) and is located inside the mounting housing (305), the outer wall of the feed tube (302) is fitted with a heat-conducting component (304), a cooling fan (303) is detachably connected to the outer wall of the mounting housing (305), and a cleaning component is installed inside the mounting housing (305) to scrape off the dust on the mounting housing (305).

2. The micro-jetting flex circuit 3D printer of claim 1, wherein, The mounting housing (305) is detachably connected to two sides of a filter screen (306), which filters the air entering the mounting housing (305) from the outside.

3. The micro-jetting flex circuit 3D printer according to claim 1 or 2, characterized in that, The mounting housing (305) is detachably connected to two sides of a filter screen (306), and the outer wall of the heat-conducting component (304) is fixedly connected to a partition plate (307). The axis of the partition plate (307) is perpendicular to the axis of the cooling fans (303) on both sides. The partition plate (307) divides the interior of the mounting housing (305) into two parts, and the air intake on both sides exhausts the heat in the two parts to the outside.

4. The micro-jetting flex circuit 3D printer of claim 1, wherein, The heat-conducting component (304) encloses the heat-conducting pipe and heat-conducting fins. Multiple heat-conducting fins are fixedly connected to the outer wall of the heat-conducting pipe sleeve, and the partition plate (307) is fixedly connected to the outer wall of the heat-dissipating pipe sleeve.

5. The micro-jetting flex circuit 3D printer of claim 4, wherein, The cleaning assembly includes a movable plate (308), a scraper (309), a semi-circular plate (310), and a pull handle (311). The movable plate (308) is disposed on both sides inside the mounting housing (305). Multiple sets of scraper (309) are fixedly connected to the opposite sides of the movable plates (308). Each set of scraper (309) consists of two scraper (309) plates. The two scraper (309) plates are attached to the upper and lower outer walls of a heat sink fin. The semi-circular plate (310) is disposed at the bottom of the two scraper (309) plates. A sliding plate that protrudes from the mounting housing (305) is fixedly connected to the outer wall of the semi-circular plate (310). The pull handle (311) is disposed at the end of the sliding plate. Pulling the pull handle (311) causes the semi-circular plate (310) to move laterally, thereby driving the two movable plates (308) to move laterally. The scraper (309) scrapes the upper and lower outer walls of the heat sink fin.

6. The micro-jetting flex circuit 3D printer of claim 1, wherein, The bottom of the mounting housing (305) is fixedly connected to a discharge track (312), which is connected to the interior of the mounting housing (305) and discharges dust outward.

7. The micro-jetting flex circuit 3D printer of claim 1, wherein, The mounting bracket (200) is detachably connected to a horizontally arranged sliding rail (205), and a movable bracket (301) is slidably connected to the sliding rail (205). The movable bracket (301) has a built-in drive component, which enables the movable bracket (301) to move laterally on the sliding rail (205).

8. The micro-jetting flex circuit 3D printer of claim 1, wherein, The mounting bracket (200) is detachably connected to two sides of a servo motor (202), and the rotating ends of the two servo motors (202) are detachably connected to a drive screw (203). The sliding rail (205) is threadedly connected to the outer wall of the drive screw (203). The mounting bracket (200) is detachably connected to two sides of a sliding rod (204), and the sliding rail (205) is slidably connected to the outer wall of the sliding rod (204).

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