Frame type particle 3D printing equipment

Abstract

The utility model provides frame type particle 3D printing equipment which comprises a printing gun, an X-axis linear guide rail, a Y-axis linear guide rail and a Z-axis linear guide rail which are mutually orthogonal to form a three-dimensional motion frame, a construction platform formed by splicing four sets of separation plates is arranged below the Y-axis linear guide rail, the bottom ends of every two of the four sets of separation plates are jointly provided with sliding rails in a sliding mode, and the sliding rails are connected with the X-axis linear guide rail and the Z-axis linear guide rail. The two sets of sliding rails are arranged in a crossed mode, and the top sides of the two sets of sliding rails are rotationally provided with two-way lead screws used for driving the separating plate to slide. According to the utility model, through the sliding design of the four groups of separating plates along the crossed sliding rails and the combination of bidirectional screw rod driving, the platform and a printing piece can be quickly separated after printing is completed, so that the stripping difficulty caused by material adhesion in the traditional equipment is avoided, and the operation efficiency is obviously improved; elastic sealing strips and magnetic connecting pieces are arranged at the splicing positions of the separating plates, molten materials are effectively prevented from permeating into the sliding rails, the equipment maintenance frequency is reduced, and meanwhile the long-term stability of the platform is ensured.

Description

Technical Field

[0001] This utility model belongs to the field of 3D printing technology, and more specifically, it relates to a frame-type particle 3D printing device. Background Technology

[0002] Current mainstream 3D printing technologies are mainly based on photopolymerization, selective laser sintering, and fused deposition modeling (FDM) processes, with raw materials primarily consisting of liquid resins, powders, and filamentary polymers. In contrast, granular 3D printing equipment innovatively uses granular raw materials as its basic consumables, combined with a twin-screw extrusion system to achieve controlled melting of various thermoplastic materials, and utilizes high-precision nozzles to complete layer-by-layer deposition. This technology system exhibits multiple industrialization advantages: in terms of raw material economy, granular materials are significantly cheaper than traditional filaments and have wider compatibility; in terms of molding capacity, it can overcome the size limitations of traditional equipment to manufacture large components; in terms of processing efficiency, it achieves higher production rates through optimized melt extrusion mechanisms, while also supporting flexible adaptation to various engineering plastics.

[0003] However, because this 3D printer uses a melt extrusion layer-by-layer printing method, the heated material exhibits high viscosity. This can cause the bottom layer of material to adhere to the printer's build platform, making it difficult to remove the printed part from the platform after printing.

[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided a frame-type particle 3D printing device in order to achieve a more practical value. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a frame-type particle 3D printing device, which is achieved by the following specific technical means:

[0006] A frame-type particle 3D printing device includes a printing gun, an X-axis linear guide, a Y-axis linear guide, and a Z-axis linear guide, which are orthogonal to each other to form a three-dimensional motion frame. Below the Y-axis linear guide, there is a building platform composed of four sets of separation plates. The bottom ends of the four sets of separation plates are slidably mounted with slide rails, and the two sets of slide rails are arranged crosswise. The top sides of the two sets of slide rails are rotatably mounted with bidirectional lead screws for driving the separation plates to slide. The two sets of bidirectional lead screws are arranged vertically and horizontally, and one end of the two sets of bidirectional lead screws is connected to a drive mechanism.

[0007] Preferably, the drive mechanism includes a first bevel gear fixedly mounted on one end of two sets of bidirectional lead screws, a second bevel gear meshing with one side of each of the two sets of first bevel gears, a drive shaft mounted on one side of each of the two sets of second bevel gears, and one end of each drive shaft penetrating the side wall of the Z-axis linear guide rail. A pulley is fixedly mounted on the outer wall of both sets of drive shafts, and a belt is connected to the outer wall of both sets of pulleys. A handwheel is fixedly mounted on the outer wall of one end of one set of drive shafts.

[0008] Preferably, the top sides of both sets of slide rails are provided with T-shaped slide grooves, and the two sets of bidirectional lead screws are respectively rotatably installed in the two sets of T-shaped slide grooves. The bottom ends of the four sets of separation plates are provided with T-shaped sliders, and the four sets of separation plates are respectively slidably installed on the two sets of slide rails through the T-shaped sliders.

[0009] Preferably, a cleaning rod for cleaning printer gun blockage is rotatably mounted at one corner of the top of the Z-axis linear guide, and the outer wall of the cleaning rod is provided with a spiral scraper.

[0010] Preferably, a first gear is fixedly mounted on the outer wall of the bottom end of the cleaning rod, a second gear is meshed on one side of the first gear, and a motor is driven and connected to the bottom side of the second gear. The motor is installed in the Z-axis linear guide rail.

[0011] Preferably, the splicing edges of the four sets of separation plates are provided with magnetic connectors to enable quick positioning and detachable fixing between the separation plates, and elastic sealing strips are provided at the splicing points to prevent molten material from seeping into the slide rail.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. This utility model, through the sliding design of four sets of separation plates along the cross slide rails, combined with bidirectional screw drive, can quickly separate the platform and the printed parts after printing, avoiding the peeling difficulties caused by material adhesion in traditional equipment, and significantly improving operating efficiency; the elastic sealing strip and magnetic connector set at the splicing of the separation plates effectively prevent molten material from seeping into the slide rail, reducing the frequency of equipment maintenance, while ensuring the long-term stability of the platform;

[0014] 2. This utility model uses a cleaning rod equipped with a spiral scraper and a gear transmission system, which can automatically clear the blockage of the print gun through motor drive, reducing the need for manual intervention and improving the continuous operation capability of the equipment; the three-dimensional motion frame adopts X / Y / Z axis linear guides and high-precision ball screw transmission to ensure the positioning accuracy of the print head, which is suitable for the manufacturing of large and complex components; the direct melt extrusion technology of granular raw materials is compatible with a variety of engineering plastics, and the cost of granular materials is significantly lower than that of traditional filaments, reducing production costs. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of the utility model. Figure 1 .

[0016] Figure 2 This is a three-dimensional schematic diagram of the utility model. Figure 2 .

[0017] Figure 3 This is a top view of the present invention.

[0018] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0019] 1. X-axis linear guide; 2. Y-axis linear guide; 3. Z-axis linear guide; 4. Separator plate; 5. Slide rail; 6. T-slider; 7. T-groove; 8. Bidirectional lead screw; 9. First bevel gear; 10. Second bevel gear; 11. Drive shaft; 12. Handwheel; 13. First gear; 14. Second gear; 15. Cleaning rod; 16. Printing gun. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Example:

[0022] As attached Figure 1 To be continued Figure 3 As shown:

[0023] This utility model provides a frame-type particle 3D printing device, including a printing gun 16, an X-axis linear guide rail 1, a Y-axis linear guide rail 2, and a Z-axis linear guide rail 3, which are orthogonal to each other to form a three-dimensional motion frame. Below the Y-axis linear guide rail 2, there is a building platform composed of four sets of separation plates 4 spliced ​​together. The bottom ends of the four sets of separation plates 4 are slidably mounted with slide rails 5. The two sets of slide rails 5 are arranged crosswise. The top sides of the two sets of slide rails 5 are rotatably mounted with bidirectional lead screws 8 for driving the separation plates 4 to slide. The two sets of bidirectional lead screws 8 are arranged vertically at intervals. One end of the two sets of bidirectional lead screws 8 is connected to a drive mechanism.

[0024] The drive mechanism includes a first bevel gear 9 fixedly mounted on one end of two sets of bidirectional lead screws 8. A second bevel gear 10 is meshed on one side of each of the two sets of first bevel gears 9. A drive shaft 11 is mounted on one side of each of the two sets of second bevel gears 10, and one end of each drive shaft 11 passes through the side wall of the Z-axis linear guide rail 3. A pulley is fixedly mounted on the outer wall of both sets of drive shafts 11, and a belt is connected to the outer wall of both sets of pulleys. A handwheel 12 is fixedly mounted on the outer wall of one end of one set of drive shafts 11. The two sets of drive shafts 11 are linked by the pulley and the belt to ensure that the two sets of bidirectional lead screws 8 rotate synchronously and the separation plate 4 moves evenly, avoiding jamming. The handwheel 12 supports manual control, and the belt drive supports automatic mode, adapting to different scenario requirements and improving the fault tolerance of the equipment.

[0025] The top sides of both sets of slide rails 5 are provided with T-shaped grooves 7, and the two sets of bidirectional lead screws 8 are rotatably installed in the two sets of T-shaped grooves 7 respectively. The bottom ends of the four sets of separation plates 4 are provided with T-shaped sliders 6. The four sets of separation plates 4 are slidably installed on the two sets of slide rails 5 through the T-shaped sliders 6 respectively. The T-shaped grooves 7 and T-shaped sliders 6 cooperate to ensure that the separation plates 4 slide smoothly along the slide rails 5, reduce vibration, and improve printing positioning accuracy. The bidirectional lead screws 8 are embedded in the T-shaped grooves 7 to enhance transmission rigidity and prevent lead screw deviation or deformation.

[0026] The top corner of the Z-axis linear guide 3 is rotatably mounted with a cleaning rod 15 for cleaning the blockage of the print gun 16. The outer wall of the cleaning rod 15 is provided with a spiral scraper. The spiral scraper can penetrate into the nozzle of the print gun 16 and rotate to scrape off the residual molten material, reducing the frequency of manual cleaning. The cleaning rod 15 is linked with the motor to realize the timed or on-demand cleaning of the blockage material, improving the continuous operation capability of the equipment.

[0027] The bottom outer wall of the cleaning rod 15 is fixedly fitted with a first gear 13, and a second gear 14 is meshed on one side of the first gear 13. The bottom side of the second gear 14 is connected to a motor, which is installed in the Z-axis linear guide rail 3.

[0028] Among them, the splicing edges of the four sets of separation plates 4 are equipped with magnetic connectors to achieve quick positioning and detachable fixing between the separation plates 4, and the splicing points are equipped with elastic sealing strips to prevent molten material from seeping into the slide rail 5. The magnetic connectors enable precise positioning and quick disassembly of the separation plates 4, which is convenient for maintenance or replacement of platform components. The elastic sealing strips effectively prevent molten material from seeping into the slide rail 5, avoiding slide rail jamming or component wear, and extending the service life of the equipment.

[0029] The working principle of this embodiment: Printing execution steps start program: The printing program is started through the control interface. The print gun 16 moves along the X-axis linear guide 1, Y-axis linear guide 2 and Z-axis linear guide 3 according to the preset model data to achieve three-dimensional spatial positioning. The granular thermoplastic material is melted by the twin-screw extrusion system and then extruded layer by layer through the nozzle of the print gun 16. It is stacked and formed according to the model data. The state of the anti-stick coating on the surface of the separation plate 4 is observed to ensure that the first layer of material adheres appropriately to the platform and avoids warping or falling off during the printing process.

[0030] Manually drive the separation plate 4 to slide:

[0031] Step 1: Turn the handwheel 12 counterclockwise to rotate the drive shaft 11 on one side;

[0032] Step 2: Drive shaft 11 is linked to another set of drive shafts 11 via belt drive, so that the two sets of drive shafts 11 rotate synchronously.

[0033] Step 3: The second bevel gear 10 at the end of the drive shaft 11 rotates and meshes with the first bevel gear 9, driving the two sets of bidirectional lead screws 8 to rotate in opposite directions;

[0034] Step 4: The bidirectional lead screw 8 drives the four sets of separation plates 4 to slide outward along the slide rail 5, creating a peeling gap between the printed part and the construction platform;

[0035] Platform reset operation:

[0036] Step 1: Turn the handwheel 12 clockwise to reverse the rotation of the drive mechanism and rotate the bidirectional lead screw 8 in the forward direction;

[0037] Step 2: The separation plate 4 slides inward along the slide rail 5 to reset, and is precisely aligned with the T-shaped slide groove 7 by the T-shaped slider 6. The magnetic connector ensures a tight splicing.

[0038] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A frame-type particle 3D printing device, comprising a printing gun (16), an X-axis linear guide (1), a Y-axis linear guide (2), and a Z-axis linear guide (3), the three being orthogonal to each other to form a three-dimensional motion frame, characterized in that: Below the Y-axis linear guide (2) is a construction platform composed of four sets of separation plates (4). The bottom ends of the four sets of separation plates (4) are slidably mounted with slide rails (5). The two sets of slide rails (5) are arranged crosswise. The top sides of the two sets of slide rails (5) are rotatably mounted with bidirectional lead screws (8) for driving the separation plates (4) to slide. The two sets of bidirectional lead screws (8) are arranged vertically and horizontally. One end of the two sets of bidirectional lead screws (8) is connected to a drive mechanism.

2. The frame-type particle 3D printing equipment according to claim 1, characterized in that: The drive mechanism includes a first bevel gear (9) fixedly mounted on one end of two sets of bidirectional lead screws (8), a second bevel gear (10) meshing with one side of each of the two sets of first bevel gears (9), a drive shaft (11) mounted on one side of each of the two sets of second bevel gears (10), and one end of each drive shaft (11) penetrating the side wall of the Z-axis linear guide (3). The outer walls of the two sets of drive shafts (11) are jointly fixedly fitted with pulleys, and the outer walls of the two sets of pulleys are jointly connected with belts. One end of one set of drive shafts (11) is fixedly fitted with a handwheel (12).

3. The frame-type particle 3D printing equipment according to claim 1, characterized in that: Both sets of slide rails (5) have T-shaped grooves (7) on their top sides. The two sets of bidirectional screws (8) are rotatably installed in the two sets of T-shaped grooves (7). The bottom ends of the four sets of separation plates (4) are provided with T-shaped sliders (6). The four sets of separation plates (4) are slidably installed on the two sets of slide rails (5) through the T-shaped sliders (6).

4. The frame-type particle 3D printing equipment according to claim 1, characterized in that: A cleaning rod (15) for cleaning the blockage of the printer gun (16) is rotatably installed at one corner of the top of the Z-axis linear guide (3). The outer wall of the cleaning rod (15) is provided with a spiral scraper.

5. The frame-type particle 3D printing equipment according to claim 4, characterized in that: The bottom outer wall of the cleaning rod (15) is fixedly fitted with a first gear (13), and a second gear (14) is meshed on one side of the first gear (13). The bottom side of the second gear (14) is connected to a motor, and the motor is installed in the Z-axis linear guide rail (3).

6. The frame-type particle 3D printing equipment according to claim 1, characterized in that: The four sets of separation plates (4) are provided with magnetic connectors at their splicing edges to enable quick positioning and detachable fixing between the separation plates (4), and elastic sealing strips are provided at the splicing points to prevent molten material from seeping into the slide rail (5).

Images