Height increasing frame for 3D printing

Abstract

The heightening frame comprises a heightening frame arranged at the top of a 3D printer, a mounting plate with a feeding port is fixedly arranged in a mounting groove in the bottom of the frame, the front side and the rear side of the mounting plate are provided with polytetrafluoroethylene pipe joints communicating with the feeding port, and the heightening frame is formed by splicing a front frame, a rear frame and side frames through connecting blocks with tenons. According to the 3D printer, by raising the feeding position, optimizing the frame structure and additionally arranging the heat preservation and ventilation assembly, the effects that feeding resistance is reduced, operation and maintenance are convenient and fast, and the chamber environment is controllable are achieved, the 3D printer is suitable for various printing materials, and the printing efficiency is improved. The printer can be installed without modifying the printer body, and the printing stability and the equipment practicability are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to 3D printing auxiliary equipment technical field, concretely relates to a heightening frame for 3D printing. BACKGROUND

[0002] 3D printing technology is widely used in many fields, and printing precision, efficiency and material adaptability are core indexes. With the increasing richness of printing materials and the increasing demand for printing complex parts, the structural limitations of traditional 3D printers have restricted their printing quality and operation convenience.

[0003] On the feeding system, the height difference between the feeding end of the traditional equipment and the nozzle is insufficient, and the path is easily disturbed, resulting in large feeding resistance, poor feeding, affecting the printing stability, and being the efficiency bottleneck. At the same time, the connection adaptability of the feeding pipeline is poor, which further aggravates the problem.

[0004] In terms of operation and maintenance, the top space of the traditional equipment is compact, and there is no room for expansion. When adding a cover glass and other heat preservation structures, the equipment is easily damaged and the heat preservation effect is poor. When printing materials such as ABS that are sensitive to temperature, insufficient chamber heat preservation can easily cause the printed part to warp and crack.

[0005] In terms of environmental adaptability, different materials have large differences in chamber ventilation and temperature requirements (such as PLA requiring ventilation and ABS requiring high temperature and airtightness), but the traditional equipment lacks flexible adjustment structure, the ventilation grille is easily detached or cannot be switched, and it is difficult to adapt to the requirements.

[0006] The existing simple heightening structure is inconvenient to disassemble and assemble, has poor rigidity, and has high maintenance cost, and cannot solve the problems of feeding, space and environmental control at the same time. Therefore, a 3D printing auxiliary structure that meets multiple requirements is urgently needed. INVENTION CONTENTS

[0007] The utility model aims at solving one of the technical problems existing in the prior art.

[0008] The application provides a heightening frame for 3D printing, which comprises a 3D printer, a heightening frame arranged on the top of the 3D printer, an installation plate with a feeding port fixed in the installation slot, and four fluorine pipe joints installed on the front and rear sides of the installation plate and communicating with the feeding port.

[0009] The heightening frame comprises a front frame, a rear frame and a pair of side frames with inclined outer walls, and a plurality of connecting blocks, and the front frame and the rear frame are respectively spliced with the corresponding side frames through the connecting blocks.

[0010] The end portions of the front frame, the rear frame and the pair of side frames are provided with tenon grooves, and the two ends of each connecting block are provided with tenon heads matched with the tenon grooves.

[0011] The upper cover glass is arranged on the top of the heightening frame through a positioning groove, and a pair of glass locks are arranged above the side frame of the heightening frame and used for fixing the upper cover glass.

[0012] The glass lock comprises a rotating connecting section and a locking section, the rotating connecting section is connected with the heightening frame through a round shell, one end of the locking section is fixedly connected with the rotating connecting section, and the other end is used for pressing the upper cover glass.

[0013] The glass lock further comprises a locking groove and a pair of locking hooks, the locking groove is arranged at the bottom of the round shell, and the pair of locking hooks are fixedly arranged at the bottom end of the rotating connecting section and used for being movably clamped with the locking groove.

[0014] The glass lock further comprises an arc groove and a positioning block, the arc groove is arranged at the top of the round shell, and the positioning block is fixedly arranged on the rotating connecting section and slidably matched with the arc groove.

[0015] The utility model further comprises a ventilation opening and a ventilation grille, the ventilation opening is arranged on the side frame, and the ventilation grille is movably arranged on the side frame and used for controlling the opening and closing of the ventilation opening.

[0016] The utility model further comprises a limiting sliding block, a sliding groove and an anti-extraction structure, the sliding groove is arranged on the side frame, the limiting sliding block is fixedly arranged on the ventilation grille and slidably matched with the sliding groove, and the anti-extraction structure is used for preventing the ventilation grille from being extracted from the side frame.

[0017] The anti-extraction structure comprises a clamping hook and a clamping strip, the clamping strip is fixedly arranged on the outer wall of the side plate, and the clamping hook is fixedly arranged at the outer end of the limiting sliding block and used for being slidably clamped with the clamping strip.

[0018] The utility model has the beneficial effects as follows:

[0019] 1, the mounting plate of the heightening frame upper portion elevates the feeding position, cooperates with the four fluorine pipe joint of the front and rear side communication feed port, greatly increases the height difference of the feeding end and the nozzle, reduces the feeding resistance.

[0020] 2, the heightening frame is the splicing structure of front frame, rear frame, side frame and connecting block, the T-shaped tenon is matched with the mortise with limiting lugs, the limiting strip is matched with the limiting groove, the quick splicing without hardware is realized, the dismounting efficiency and the overall rigidity are superior to bolt connection.

[0021] 3, the upper cover glass is accurately positioned with the frame through the positioning groove, the glass lock is rotatably pressed to fix the glass, the cavity is sealed and heat-insulated after being closed, the temperature fluctuation of ABS printing is reduced, and the risk of part warping is reduced.

[0022] 4. The side frame vent is equipped with a movable ventilation grille. Push the limit slide block to switch the ventilation state. Open the ventilation to exhaust waste gas during PLA printing. Close the ventilation to maintain high temperature during ABS printing. It adapts to different material requirements. The clamping hook and clamping strip cooperate with the guide slope to prevent the grille from falling off. The sliding groove and limit slide block limit the stroke to avoid misalignment of the ventilation switch. BRIEF DESCRIPTION OF DRAWINGS

[0023] Fig. 1 is a perspective view (top view) of the height increasing frame for 3D printing in the embodiment of the present application;

[0024] Fig. 2 is a perspective view (bottom view) of the height increasing frame for 3D printing in the embodiment of the present application;

[0025] Fig. 3 is a perspective view of the side frame in the embodiment of the present application;

[0026] Fig. 4 is a perspective view of the connecting block in the embodiment of the present application;

[0027] Fig. 5 is a perspective view of the glass lock in the embodiment of the present application

[0028] Fig. 6 is a perspective view of the ventilation grille in the embodiment of the present application.

[0029] REFERENCE NUMERALS

[0030] 1-height increasing frame, 101-front frame, 102-rear frame, 103-side frame, 104-connecting block, 105-mortise and tenon joint, 106-tenon, 107-limit protrusion, 108-limit strip, 109-limit slot, 2-mounting groove, 3-feeding port, 4-mounting plate, 5-positioning slot, 6-glass lock, 61-rotary connecting section, 62-locking section, 63-circular shell, 64-lock hook, 65-locking groove, 66-positioning block, 67-arc slot, 7-ventilation port, 8-ventilation grille, 9-flexible gasket, 10-limit slide block, 11-sliding groove, 12-anti-falling structure, 121-clamping hook, 122-clamping strip. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be described in detail below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art belong to the scope of protection of the present application.

[0032] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are generally a class, not limited to the number of objects, for example, the first object can be one or more. In addition, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / ", generally indicates that the front and rear associated objects are in a "or" relationship.

[0033] The 3D printing heightening frame provided by the embodiments of the present application will be described in detail below in combination with the drawings, specific embodiments and application scenarios.

[0034] Embodiment 1:

[0035] The embodiments of the present application provide a 3D printing heightening frame, which comprises a 3D printer, and further comprises a heightening frame 1 arranged on the top of the 3D printer, a mounting groove 2 is formed in the bottom of the heightening frame, a mounting plate 4 with a feeding port 3 is fixedly arranged in the mounting groove 2, and a tetrafluoro tube joint communicating with the feeding port 3 is arranged on the front and rear sides of the mounting plate 4.

[0036] As shown in Figs. 1-2 Due to the above structure, the mounting plate 4 with the feeding port 3 can directly lift the feeding position, and the tetrafluoro tube joint (not shown in the figure) communicating with the feeding port 3 on the front and rear sides can effectively increase the height difference between the feeding end and the printer nozzle, and optimize the feeding path. On the other hand, the tetrafluoro tube joint can be adapted to the printer feeding pipeline, reducing the feeding resistance, and fundamentally solving the problem of unsmooth feeding caused by insufficient height difference and limited path of the traditional 3D printer. At the same time, the heightening frame 1 can also expand the operation space on the top of the printer, and reserve basic space for subsequent installation of the upper cover glass and equipment maintenance.

[0037] Embodiment 2:

[0038] In this embodiment, in addition to the structural features of the foregoing embodiments, the heightening frame 1 comprises a front frame 101, a rear frame 102 and a pair of side frames 103 with inclined outer walls, and a plurality of connecting blocks 104, and the front frame 101 and the rear frame 102 are respectively spliced with the corresponding side frames 103 through the connecting blocks 104.

[0039] In this embodiment of the present application, the end portions of the front frame 101, the rear frame 102 and the pair of side frames 103 are provided with tenon and groove 105, and the two ends of each connecting block 104 are provided with tenon 106 matched with the tenon and groove 105.

[0040] In this embodiment of the application, the tenon 106 is T-shaped, and a pair of limiting protrusions 107 are provided in the middle of the mortise 105 to limit the tenon 106 when it slides to the inner end of the mortise 105.

[0041] In this embodiment of the application, the ends of the side frame 103, the front frame 101 and the rear frame 102 are provided with limiting strips 108, and the ends of the connecting block 104 are provided with limiting grooves 109 that slide with the limiting strips 108.

[0042] like Figs. 1-4 As shown, due to the aforementioned structure, firstly, the front frame 101, rear frame 102, and side frame 103 are spliced ​​together via the tenon 106-mortise 105 structure of the connecting block 104. The T-shaped tenon 106 cooperates with the limiting protrusion 107 in the middle of the mortise 105, which can accurately position the tenon 106 during splicing and prevent splicing offset. At the same time, the limiting strip 108 slides with the limiting groove 109 of the connecting block 104, further improving the overall rigidity of the frame after splicing. Moreover, the entire process does not rely on hardware accessories. Compared with the traditional bolt connection method, the disassembly and assembly efficiency is improved and the operation is more convenient. Secondly, the inclined design of the front frame 101 not only optimizes the user's visual field during operation and avoids visual fatigue from looking down, but also leaves sufficient operating space above the frame, making it convenient for users to perform operations such as material feeding adjustment and nozzle inspection. Finally, the spliced ​​frame structure also facilitates the later partial replacement of damaged parts, reducing maintenance costs.

[0043] Example 3:

[0044] In this embodiment, in addition to the structural features of the aforementioned embodiments, it also includes a top cover glass and a pair of glass latches 6. The top cover glass is set on the top of the heightening frame 1 through a positioning groove 5, and the glass latches 6 are set above the side frame 103 of the heightening frame 1 to fix the top cover glass.

[0045] In this embodiment of the application, the glass latch 6 includes a rotating connecting section 61 and a latching section 62. The rotating connecting section 61 is rotatably connected to the heightening frame 1 through a circular shell 63. One end of the latching section 62 is fixedly connected to the rotating connecting section 61, and the other end is used to press the top glass cover.

[0046] In this embodiment of the application, the glass latch 6 further includes a latch groove 65 and a pair of latch hooks 64. The latch groove 65 is formed at the bottom of the round shell 63, and the pair of latch hooks 64 are fixed at the bottom end of the rotating connecting section 61 for movably engaging with the latch groove 65.

[0047] In this embodiment of the application, a guide slope is provided on the outer bottom of each pair of locking hooks 64 to guide the locking hooks 64 through the buckle groove 65.

[0048] In this embodiment of the present application, the glass lock 6 further comprises an arc groove 67 and a positioning block 66, the arc groove 67 is arranged on the top of the circular shell 63, and the positioning block 66 is fixedly arranged on the rotating connecting segment 61 and is in sliding fit with the arc groove 67.

[0049] In this embodiment of the present application, the top of the connecting block 104 is provided with a flexible gasket 9.

[0050] As shown in Figs. 3-5 the above structure, first, the upper cover glass (not shown in the figure) is accurately positioned with the raised frame 1 through the positioning groove 5, the rotating connecting segment 61 of the glass lock 6 can be flexibly rotated around the circular shell 63, after rotating 90 degrees, the locking segment 62 can stably press the upper cover glass, and the upper cover glass is limited in the set movable range by cooperating with the positioning groove 5, that is, the glass is close to the front limit when closed, so as to realize the sealing and heat preservation of the internal cavity of the machine, reduce the temperature fluctuation of the cavity during printing (especially suitable for materials such as ABS which need high-temperature printing), the glass can be removed during maintenance, the opening reaches the maximum state, the operator can conveniently reach the internal equipment with hand, and the glass will not be separated from the frame due to gravity. Second, the lock hook 64 of the glass lock 6 cooperates with the locking groove 65, the guide slope at the bottom of the lock hook 64 can guide the lock hook 64 to smoothly pass through the locking groove 65, so as to realize the quick clamping and fixing of the lock, and the sliding fit of the arc groove 67 and the positioning block 66 avoids excessive deviation of the lock during rotation, so as to ensure the positioning accuracy. Third, the flexible gasket 9 at the top of the connecting block 104 can play a buffering role when the glass slides or is closed, which not only prevents scratches and damage caused by hard contact between the glass and the frame, but also enhances the sealing performance when closed, and further improves the heat preservation effect.

[0051] Embodiment 4:

[0052] In this embodiment, in addition to the structural features of the foregoing embodiments, a ventilation opening 7 and a ventilation grille 8 are further included, the ventilation opening 7 is arranged on the side frame 103, and the ventilation grille is movably installed on the side frame 103 and is used for controlling the opening and closing of the ventilation opening 7.

[0053] In this embodiment of the present application, a limiting sliding block 10, a sliding groove 11 and an anti-disengagement structure 12 are further included, the sliding groove 11 is arranged on the side frame 103, the limiting sliding block 10 is fixedly arranged on the ventilation grille and is in sliding fit with the sliding groove 11, and the anti-disengagement structure 12 is used for preventing the ventilation grille from disengaging from the side frame 103.

[0054] In this embodiment of the present application, the anti-disengagement structure 12 comprises a clamping hook 121 and a clamping strip 122, the clamping strip 122 is fixedly arranged on the outer wall of the side frame 103, and the clamping hook 121 is fixedly arranged at the outer end of the limiting sliding block 10 and is used for slidingly clamping with the clamping strip 122.

[0055] In this embodiment of the present application, the bottom of the clamping hook 121 and the top of the clamping strip 122 are both provided with a guide slope, which is used for guiding the clamping strip 122 to enter the clamping hook 121 when the clamping hook 121 is pressed down.

[0056] As Fig. 3 and Fig. 6 shown, due to the adoption of the above structure, first, the ventilation grille 8 is in sliding fit with the sliding groove 11 of the side frame 103 through the limiting sliding block 10, the user only needs to push the limiting sliding block 10, and the coincidence (ventilation state) or stagger (closed state) of the ventilation grille 8 and the ventilation opening 7 of the side frame 103 can be realized, and the cavity ventilation can be flexibly adjusted according to the 3D printing requirements, for example, the ventilation is opened when printing PLA material, and the volatile gas is quickly discharged; the ventilation is closed when printing ABS material, and the high temperature of the cavity is maintained, which adapts to the printing environment requirements of different materials. Second, the clamping hook 121 of the anti-dropping structure 12 is in sliding fit with the clamping strip 122 of the outer wall of the side frame 103, the guiding slope at the bottom of the clamping hook 121 and the top of the clamping strip 122 can guide the clamping strip 122 to smoothly enter the clamping hook 121 during the installation process of the limiting sliding block 10, which not only does not affect the sliding switching of the ventilation grille 8, but also effectively prevents the ventilation grille 8 from being dropped out of the sliding groove 11 due to improper operation or vibration, and ensures the long-term stable use of the ventilation mechanism; at the same time, the cooperation of the sliding groove 11 and the limiting sliding block 10 can also limit the sliding stroke of the ventilation grille 8, avoid the misalignment of the ventilation opening 7 during switching, and ensure the reliability of the ventilation or closed state.

[0057] It should be noted that in this document, the terms "comprise", "comprising", or any other variant thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements, but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without more limitations, the element defined by the statement "comprising a" does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element. In addition, it should be pointed out that the scope of the methods and apparatus in the embodiments of the present application is not limited to the order of performing the functions shown or discussed, but can also include performing the functions in a substantially simultaneous manner or in reverse order, for example, the described method can be performed in an order different from that described, and various steps can also be added, omitted, or combined. In addition, the features described with reference to certain examples can be combined in other examples.

[0058] The embodiments of the present application are described above in combination with the drawings, but the present application is not limited to the above specific embodiments, and the above specific embodiments are only illustrative, not limiting, and those skilled in the art can make many forms under the inspiration of the present application without departing from the scope of the present application and the scope protected by the claims.

Claims

1. A riser for 3D printing, comprising a 3D printer, characterized in that, It also includes a riser frame set on top of the 3D printer. The riser frame has a mounting groove at the bottom, and a mounting plate with a feed inlet is fixed in the mounting groove. PTFE pipe connectors that connect to the feed inlet are installed on the front and rear sides of the mounting plate, respectively.

2. The riser frame for 3D printing according to claim 1, characterized in that, The height-increasing frame includes a front frame with an inclined outer wall, a rear frame, a pair of side frames, and several connecting blocks. The front frame and the rear frame are respectively spliced ​​to the corresponding side frames through the connecting blocks.

3. The riser frame for 3D printing according to claim 2, characterized in that, The ends of the front frame, rear frame and a pair of side frames are provided with mortise grooves, and the two ends of each connecting block are provided with tenons that are adapted to the mortise grooves.

4. The riser frame for 3D printing according to claim 1, characterized in that, It also includes a top cover glass and a pair of glass latches. The top cover glass is set on the top of the heightening frame through a positioning groove, and the glass latches are set above the side frame of the heightening frame to fix the top cover glass.

5. The riser for 3D printing according to claim 4, characterized in that, The glass latch includes a rotating connecting section and a locking section. The rotating connecting section is rotatably connected to the heightening frame through a circular shell. One end of the locking section is fixed to the rotating connecting section, and the other end is used to press the top glass cover.

6. The riser for 3D printing according to claim 5, characterized in that, The glass lock also includes a lock groove and a pair of lock hooks. The lock groove is opened at the bottom of the round shell, and the pair of lock hooks are fixed at the bottom end of the rotating connecting section, protrude from the lock groove, and engage with the bottom surface of the round shell.

7. The riser for 3D printing according to claim 5, characterized in that, The glass latch also includes an arc groove and a positioning block. The arc groove is formed on the top of the circular shell, and the positioning block is fixed on the rotating connecting section and slides in cooperation with the arc groove.

8. The riser for 3D printing according to claim 3, characterized in that, It also includes vents and ventilation grilles, with the vents located on the side frame and the ventilation grilles movably mounted on the side frame for controlling the opening and closing of the vents.

9. The riser for 3D printing according to claim 8, characterized in that, It also includes a limiting slider, a sliding groove, and an anti-detachment structure. The sliding groove is formed on the side frame, the limiting slider is fixed on the ventilation grille and slides in cooperation with the sliding groove, and the anti-detachment structure is used to prevent the ventilation grille from detaching from the side frame.

10. The riser for 3D printing according to claim 9, characterized in that, The anti-detachment structure includes a hook and a locking strip. The locking strip is fixed on the outer wall of the side plate, and the hook is fixed on the outer end of the limiting slider for sliding engagement with the locking strip.

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