Granular material FDM printer supporting structure

Abstract

The utility model discloses a granular material FDM printer supporting structure, which belongs to the technical field of FDM printers, and comprises a workbench, the top of the workbench is fixedly connected with a sliding seat, the inner side wall of the sliding seat is fixedly connected with a pulling spring, and the inner side wall of the sliding seat is slidably connected with a sliding column. The ends, away from the inner side walls of the sliding seats, of the pulling springs are fixedly connected with the inner side walls of the sliding columns, the tops of the sliding columns are fixedly connected with a bottom plate, supporting grooves are formed in the outer side walls of the workbench, and one ends of the supporting grooves are hook-shaped. According to the granular material FDM printer supporting structure, through cooperative use of the sliding base, a pulling spring, a sliding column, a bottom plate, a supporting groove, a supporting rod, a guide column, an extrusion spring and a limiting column, after printing is completed and the bottom plate is pulled out of the interior of the workbench, the end, away from the workbench, of the bottom plate is conveniently supported, and the working efficiency is improved; the end, away from the workbench, of the bottom plate is prevented from deforming due to the weight of the bottom plate and the weight of printed pieces, and therefore printed finished products on the top of the bottom plate are prevented from being broken.

Description

Technical Field

[0001] The utility model belongs to the technical field of FDM printers. Specifically, it relates to a support structure for a granular material FDM printer. Background Technique

[0002] FDM is the abbreviation of fused deposition modeling, which is a 3D printing technology that melts a filamentous thermoplastic material, extrudes it through a nozzle with a fine nozzle, deposits it on a production panel or the previously cured material of the previous layer, and the nozzle moves along a predetermined trajectory to form a final product layer by layer.

[0003] However, after printing is completed, the operator needs to pull out the bottom plate and then remove the finished product. During the pulling process, due to the weight of the bottom plate itself and the weight of the printed item, the bottom plate bears a large pressure during the pulling process. This pressure may cause the bottom plate to bend under force and then deform. The deformation of the bottom plate may damage the printed item. Especially for some printed items with relatively fragile structures or high precision requirements, the bending of the bottom plate may cause internal stress in the item, resulting in damage such as cracks and breaks, increasing the scrap rate and cost.

[0004] To solve the above problems, a support structure for a granular material FDM printer is proposed in this application. Content of the Utility Model

[0005] Aiming at the problems in the related technology, the utility model proposes a support structure for a granular material FDM printer to overcome the above technical problems existing in the existing related technology.

[0006] To achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A support structure for a granular material FDM printer, including a workbench, a sliding seat is fixedly connected to the top of the workbench, a pulling spring is fixedly connected to the inner side wall of the sliding seat, a sliding column is slidably connected to the inner side wall of the sliding seat, one end of the pulling spring away from the inner side wall of the sliding seat is fixedly connected to the inner side wall of the sliding column, a bottom plate is fixedly connected to the top of the sliding column, a support groove is opened on the outer side wall of the workbench, one end of the support groove is in a hook shape, a support rod is hinged to the bottom of the bottom plate, a guide column is hinged to the bottom of the bottom plate, a compression spring is fixedly connected to the outer side wall of the guide column, one end of the compression spring away from the guide column is fixedly connected to the top of the support rod, a limiting column is fixedly connected to one end of the support rod close to the compression spring, and the limiting column is located inside the support groove.

[0008] Preferably, a limiting block is fixedly connected to the inner bottom of the workbench. One end of the limiting block is fixedly connected to the outer side wall of the sliding seat. An elastic pin is arranged on the inner side wall of the limiting block. One end of the elastic pin has a radian. A connecting block is fixedly connected to the end of the sliding column close to the limiting block. The outer side wall of the connecting block abuts against the outer side wall of the elastic pin. By providing the limiting block, the elastic pin and the connecting block, it is convenient to limit the sliding column and the bottom plate, and prevent the position of the bottom plate from changing during the printing process.

[0009] Preferably, a clamping groove is formed at the top of the connecting block. The connecting block is slidably connected to a clamping block through the clamping groove. A handle is fixedly connected to the top of the clamping block. By providing the clamping block and the handle, it is convenient to release the restriction of the elastic pin on the sliding column and the bottom plate, and facilitate the operator to take the printed part on the top of the bottom plate.

[0010] Preferably, a return spring is fixedly connected to the outer side wall of the connecting block. One end of the return spring far from the connecting block is fixedly connected to the bottom of the clamping block. By providing the return spring, it is convenient to support the clamping block, and prevent the clamping block from accidentally touching the elastic pin during the printing process, so as to prevent the position of the bottom plate from changing.

[0011] Preferably, a sliding groove is formed at the top of the workbench. The workbench is slidably connected to a roller through the sliding groove. A conduit is fixedly connected through the top of the roller. By providing the roller, it is convenient for the position of the sliding groove to change in real time.

[0012] Preferably, a printing device is arranged on the inner side wall of the workbench. A feeding hose is fixedly communicated with the outer side wall of the printing device. The outer side wall of the feeding hose is adapted to the inner side wall of the conduit at the top of the roller. By providing the outer side wall of the feeding hose to be adapted to the inner side wall of the conduit at the top of the roller, it is convenient to guide the feeding hose and prevent the outer side wall of the feeding hose from rubbing and breaking against the outer side wall of the workbench.

[0013] In summary, the technical effects and advantages of the present utility model: For the support structure of the particulate material FDM printer, through the combined use of the sliding seat, the pulling spring, the sliding column, the bottom plate, the support groove, the support rod, the guiding column, the extrusion spring and the limiting column, it is convenient to support one end of the bottom plate far from the workbench after the bottom plate is pulled out of the inside of the workbench after printing is completed, and prevent the end of the bottom plate far from the workbench from deforming due to its own weight and the weight of the printed part, thereby preventing the printed product on the top of the bottom plate from collapsing.

[0014] Through the combined use of the limiting block, the elastic pin, the connecting block, the clamping groove, the clamping block, the handle and the return spring, while being convenient to limit the position of the bottom plate, it is convenient for the operator to adjust the position of the bottom plate, improves the stability of the bottom plate during use, and improves the work efficiency of the operator. Description of the Drawings

[0015] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0016] Figure 2 is a schematic diagram of the pulling spring and related parts of the present utility model;

[0017] Figure 3 is a schematic diagram of the structural support rod and related parts of the present utility model;

[0018] Figure 4 is a schematic diagram of the structural clamping block and related parts of the present utility model;

[0019] Figure 5 is a schematic diagram of the structural printing device and related parts of the present utility model.

[0020] In the figure:

[0021] 1. Workbench; 2. Sliding seat; 3. Pulling spring; 4. Slide post; 5. Base plate; 6. Support groove; 7. Support rod; 8. Guide post; 9. Extrusion spring; 10. Limit post; 11. Limit block; 12. Elastic pin; 13. Connecting block; 14. Card slot; 15. Clamping block; 16. Handle; 17. Return spring; 18. Slide groove; 19. Roller; 20. Feeding hose; 21. Printing device. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0023] Refer to Figures 1-3, A support structure for a granular material FDM printer, including a workbench 1. A sliding seat 2 is fixedly connected to the top of the workbench 1. There are two sliding seats 2, and the two sliding seats 2 are symmetrically distributed with respect to the central axis of the bottom of the workbench 1. Pulling springs 3 are fixedly connected to the inner walls of the two sliding seats 2. Slide columns 4 are slidably connected to the inner walls of the two sliding seats 2. Cavities are provided inside the two slide columns 4. The two pulling springs 3 are both located inside the two slide columns 4, and the ends of the two pulling springs 3 away from the inner walls of the two sliding seats 2 are respectively fixedly connected to the inner walls of the two slide columns 4. A bottom plate 5 is fixedly connected to the tops of the two slide columns 4. The bottom plate 5 is used to carry printing items. A support groove 6 is provided on the outer wall of the workbench 1. A notch is provided in the middle of the bottom of the workbench 1. The support groove 6 is located on the outer walls on both sides of the notch at the bottom of the workbench 1, and one end of each of the two support grooves 6 is set in a hook shape. The hooks provided at one end of the two support grooves 6 face the bottom of the workbench 1, and both of the two support grooves 6 are provided with an inclination angle. The horizontal height of the end of the support groove 6 with a hook is higher. A support rod 7 is hinged to the bottom of the bottom plate 5. A guide post 8 is hinged to the bottom of the bottom plate 5. A compression spring 9 is fixedly connected to the outer wall of the guide post 8. The end of the compression spring 9 away from the guide post 8 is fixedly connected to the top of the support rod 7. A limiting post 10 is fixedly connected to the end of the support rod 7 close to the compression spring 9. The two ends of the limiting post 10 are respectively located inside the two support grooves 6;

[0024] After printing is completed, the operator can pull out the bottom plate 5 from the inside of the workbench 1. At this time, the bottom plate 5 drives the support rod 7 and the limiting post 10 to move synchronously. Since the two ends of the limiting post 10 are respectively located inside the two support grooves 6, one end of each of the two support grooves 6 is set in a hook shape, and both of the two support grooves 6 are provided with an inclination angle, when the bottom plate 5 moves, it will drive the limiting post 10 to move along the direction of the support groove 6. As the limiting post 10 moves, the two ends of the limiting post 10 gradually approach the hook. When the limiting post 10 moves to the hook, since both hooks face the bottom direction of the workbench 1, and during the movement of the bottom plate 5, the end of the support rod 7 close to the limiting post 10 gradually approaches the bottom plate 5 due to the inclination angle of the support groove 6, thereby squeezing the compression spring 9. After the two limiting posts 10 move to the hook, the inner wall of the support groove 6 releases the restriction on the limiting post 10. Under the action of the self-elastic force of the compression spring 9, the two ends of the limiting post 10 respectively enter the inside of the two hooks, thereby restricting the position of the support rod 7 and at the same time providing a fulcrum for the support rod 7, so that a triangle is formed between the support rod 7 and the bottom plate 5, thereby improving the stability of the bottom plate 5 and supporting the end of the bottom plate 5 away from the workbench 1.

[0025] Refer to Figure 4, a limiting block 11 is fixedly connected to the inner bottom of the workbench 1. There are two limiting blocks 11. One ends of the outer side walls of the two limiting blocks 11 are respectively fixedly connected to one ends of the two sliding seats 2. Two elastic pins 12 are arranged on the inner side walls of the two limiting blocks 11. One ends of the four elastic pins 12 are arc-shaped. The four elastic pins 12 are divided into two groups, and the positions of each group are opposite, that is, the positions of the sliding seats 2 are restricted by the two elastic pins 12. One ends of the two sliding columns 4 close to the two limiting blocks 11 are respectively fixedly connected with connecting blocks 13. The outer side walls of the two connecting blocks 13 are respectively in contact with the outer side walls of the two elastic pins 12. The contact area between the two sliding columns 4 and the two elastic pins 12 is increased through the two connecting blocks 13, and the limiting stability is improved.

[0026] Refer to Figure 4 , clamping grooves 14 are respectively formed in the tops of the two connecting blocks 13. The two connecting blocks 13 are respectively slidably connected with clamping blocks 15 through the two clamping grooves 14. One sides of the two clamping blocks 15 close to the four elastic pins 12 are arc-shaped. A handle 16 is fixedly connected to the top of the two clamping blocks 15. When an operator needs to adjust the position of the bottom plate 5, the handle 16 can be pressed in the direction of the bottom of the workbench 1, so as to adjust the position of the clamping blocks 15 through the handle 16, so that the outer side walls of the two clamping blocks 15 squeeze one ends of the four elastic pins 12, so that one ends of the four elastic pins 12 are retracted into the two limiting blocks 11, and further the restriction of the four elastic pins 12 on the two connecting blocks 13 is released, facilitating the operator to adjust the position of the bottom plate 5.

[0027] Refer to Figure 4 , return springs 17 are respectively fixedly connected to the outer side walls of the two connecting blocks 13. One ends of the two return springs 17 far away from the two connecting blocks 13 are respectively fixedly connected to the bottoms of the two clamping blocks 15. The heights of the clamping blocks 15 are restricted by the two return springs 17, avoiding the two clamping blocks 15 falling and squeezing the four elastic pins 12 during use, resulting in the reduction of the limiting effect of the four elastic pins 12, and thus the position of the bottom plate 5 changes.

[0028] Refer to Figure 5 , a sliding groove 18 is formed in the top of the workbench 1. The workbench 1 is slidably connected with a roller 19 through the sliding groove 18. The roller 19 is located inside the sliding groove 18. A conduit is fixedly connected through the top of the roller 19. Arc shapes are arranged on the outer side walls of the top and bottom of the conduit.

[0029] Refer to Figure 5, a printing device 21 is provided on the inner side wall of the workbench 1. The outer side wall of the printing device 21 is fixedly communicated with a feeding hose 20. The outer side wall of the feeding hose 20 is adapted to the inner side wall of the conduit at the top of the roller 19. Since the top and bottom of the conduit are provided with arcs, the wear on the outer side wall of the feeding hose 20 is reduced, and at the same time, the wear between the outer side wall of the feeding hose 20 and the outer side wall of the workbench 1 is avoided.

[0030] Working principle: After printing is completed, the operator can press the grip 16 in the direction of the bottom of the workbench 1, so as to adjust the position of the clamping block 15 through the grip 16, so that the outer side walls of the two clamping blocks 15 squeeze one end of the four elastic pins 12, so that one end of the four elastic pins 12 retracts into the two limit blocks 11, thereby releasing the restriction of the four elastic pins 12 on the two connecting blocks 13, and then the bottom plate 5 can be pulled out of the inside of the workbench 1. At this time, the bottom plate 5 drives the support rod 7 and the limit post 10 to move synchronously. Since the two ends of the limit post 10 are respectively located inside the two support grooves 6, one end of the two support grooves 6 is set in a hook shape, and the two support grooves 6 are both provided with an inclined angle. Therefore, when the bottom plate 5 moves, it will drive the limit post 10 to move along the direction of the support groove 6. As the limit post 10 moves, the two ends of the limit post 10 gradually approach the hook. When the limit post 10 moves to the hook, since the two hooks are both oriented towards the bottom of the workbench 1, and during the movement of the bottom plate 5, one end of the support rod 7 close to the limit post 10 gradually approaches the bottom plate 5 due to the inclined angle of the support groove 6, thereby squeezing the compression spring 9. When the two limit posts 10 move to the hook, the inner side wall of the support groove 6 releases the restriction on the limit post 10. Under the action of the self-elastic force of the compression spring 9, the two ends of the limit post 10 respectively enter the inside of the two hooks, thereby restricting the position of the support rod 7 and at the same time providing a fulcrum for the support rod 7, so that a triangle is formed between the support rod 7 and the bottom plate 5, thereby improving the stability of the bottom plate 5 and supporting the end of the bottom plate 5 away from the workbench 1.

[0031] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A support structure for a granular material FDM printer, comprising a workbench (1), characterized in that, A sliding seat (2) is fixedly connected to the top of the workbench (1). A pulling spring (3) is fixedly connected to the inner side wall of the sliding seat (2). A sliding column (4) is slidably connected to the inner side wall of the sliding seat (2). One end of the pulling spring (3) away from the inner side wall of the sliding seat (2) is fixedly connected to the inner side wall of the sliding column (4). A bottom plate (5) is fixedly connected to the top of the sliding column (4). A support groove (6) is formed in the outer side wall of the workbench (1). One end of the support groove (6) is in a hook shape. A support rod (7) is hinged to the bottom of the bottom plate (5). A guide post (8) is hinged to the bottom of the bottom plate (5). An extrusion spring (9) is fixedly connected to the outer side wall of the guide post (8). One end of the extrusion spring (9) away from the guide post (8) is fixedly connected to the top of the support rod (7). A limiting post (10) is fixedly connected to one end of the support rod (7) close to the extrusion spring (9). The limiting post (10) is located inside the support groove (6).

2. The support structure of a particulate material FDM printer according to claim 1, wherein A limiting block (11) is fixedly connected to the inner bottom of the workbench (1). The outer side wall of the limiting block (11) is fixedly connected to one end of the sliding seat (2). An elastic pin (12) is arranged on the inner side wall of the limiting block (11). One end of the elastic pin (12) has a radian. A connecting block (13) is fixedly connected to one end of the sliding column (4) close to the limiting block (11). The outer side wall of the connecting block (13) abuts against the outer side wall of the elastic pin (12).

3. The support structure of a particulate material FDM printer according to claim 2, characterized in that, A clamping groove (14) is formed in the top of the connecting block (13). A clamping block (15) is slidably connected to the connecting block (13) through the clamping groove (14). A handle (16) is fixedly connected to the top of the clamping block (15).

4. A support structure for a particulate material FDM printer according to claim 2, characterized in that, A reset spring (17) is fixedly connected to the outer side wall of the connecting block (13). One end of the reset spring (17) away from the connecting block (13) is fixedly connected to the bottom of the clamping block (15).

5. A support structure for a particulate material FDM printer according to claim 1, wherein, A sliding groove (18) is formed in the top of the workbench (1). A roller (19) is slidably connected to the workbench (1) through the sliding groove (18). A conduit is fixedly connected through the top of the roller (19).

6. The support structure of a particulate material FDM printer according to claim 5, characterized in that, A printing device (21) is arranged on the inner side wall of the workbench (1). A feeding hose (20) is fixedly communicated with the outer side wall of the printing device (21). The outer side wall of the feeding hose (20) is adapted to the inner side wall of the conduit at the top of the roller (19).

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