Preheating platform rapid demolding mechanism based on FDM technology

Abstract

The invention discloses a preheating platform rapid demolding mechanism based on an FDM technology, relates to the field of 3D printing, and solves the problem that an existing preheating platform is difficult to demold a soft model, the preheating platform rapid demolding mechanism comprises a heating platform and two rotating rollers, and two mounting bases are fixedly mounted on the two sides of the heating platform correspondingly; two ends of each rotating roller are rotatably mounted between the two adjacent mounting seats, a motor is arranged on the outer side of the heating platform, the output end of the motor is fixedly connected with one end of the adjacent rotating roller, and a transmission belt is rotatably mounted between the two rotating rollers; the stripping mechanism is used for quickly stripping a model on the transmission belt, and the stripping mechanism is mounted between the two mounting seats on the right side of the heating platform; through the stripping mechanism, the outer side of the model is repeatedly stirred, resistance is provided for the model, the model can be stripped from the transmission belt conveniently, and therefore the effect of rapid demolding is achieved.

Description

Technical Field

[0001] The invention relates to the field of 3D printing, and in particular to a preheating platform rapid demoulding mechanism based on FDM technology. Background Art

[0002] FDM technology is fused deposition modeling technology, which is another widely used rapid prototyping process after photocuring rapid prototyping and laminated solid rapid prototyping. It uses a hot melt nozzle to extrude and deposit semi-fluid materials at a specified position according to a data-controlled path to solidify and form the entire prototype or part after deposition and solidification layer by layer.

[0003] The preheating platform is a heating plane used to support the printed object during the printing process. This platform is usually located at the bottom of the printer and provides a uniform temperature for the printing material to ensure that the first layer of the print can adhere firmly to the platform. The existing preheating platform uses a crawler-type carrier plate to transport the model so that the bottom of the printed model contacts the unloading plate under the drive of the carrier plate to separate the model from the carrier plate and fall off. However, due to the different flexibility of the printing materials, when the printed model is a flat model with a relatively soft texture, the crawler-type carrier plate is used to transport the model. Since the effective bending angle of the crawler-type carrier plate to the model is not very large, when the model is against the unloading plate, since the model is not completely loose, a collision will occur between the model and the unloading plate, which can easily cause greater damage to the model and is difficult to repair later. Summary of the invention

[0004] The purpose of the present invention is to provide a preheating platform rapid demoulding mechanism based on FDM technology to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: A preheating platform rapid demoulding mechanism based on FDM technology comprises: a heating platform and two rollers respectively arranged on both sides of the heating platform, two symmetrically distributed mounting seats are fixedly installed on both sides of the heating platform, two ends of the rollers are rotatably installed between two adjacent mounting seats, a motor is arranged on the outer side of the heating platform, the motor is fixedly installed on the outer side of the adjacent mounting seats, the output end of the motor is fixedly connected to one end of the adjacent roller, a transmission belt is rotatably installed between the two rollers, the transmission belt is used to carry the model, the heating platform can heat the top of the transmission belt so that the model is attached to the surface of the transmission belt; and further comprises: a stripping mechanism for quickly demoulding the model on the transmission belt, the stripping mechanism is installed between the two mounting seats located on the right side of the heating platform; a spraying mechanism for spraying a solvent on the raw material residue stuck on the transmission belt, the spraying mechanism is installed on the right side of the transmission belt; a scraping mechanism for scraping and cleaning the raw material residue stuck on the transmission belt, the scraping mechanism is installed below the transmission belt.

[0006] Preferably, the stripping mechanism comprises a moving rod located above the transmission belt, a mounting cylinder is fixedly installed on the outer side of the moving rod, a plurality of equally spaced shifting blocks are fixedly installed on the outer side of the mounting cylinder, and when the mounting cylinder rotates, the outer side of the model can be shifted by the shifting blocks to separate the model from the shifting blocks, and the tops of the two mounting seats located on the right side of the heating platform are fixedly installed with symmetrically distributed moving racks, the moving racks are T-shaped, and are convenient for being firmly mounted on the tops of the mounting seats, and the outer side of the moving racks is provided with long strip holes for the moving rods to limit the sliding movement, so that the moving rods can be moved to the outer side of the heating platform. The moving rod can move along the inner side of the long hole, and an electric screw is fixedly installed on the top of the moving frame, and the two ends of the moving rod are respectively rotatably installed on the outer sides of the two moving ends of the electric screw, so that the electric screw can drive the moving rod to reciprocate, and gears are fixedly installed on both ends of the moving rod, and a U-shaped frame is fixedly installed on the side of the moving frame away from the moving end of the electric screw, and a rack plate 1 matching the gear 1 is fixedly installed on the inner side of the U-shaped frame, so that when the moving rod moves, the moving rod can be in a state of self-rotation through the gear 1 and the rack plate 1.

[0007] Preferably, the spraying mechanism includes a moving plate fixedly mounted on the outer side of the moving end of the electric screw rod, the outer side of the moving plate is fixedly mounted with a rack plate 2, and the outer side of the mounting seat is rotatably mounted with a gear 2 that matches the rack plate 2, so that the rack plate 2 can drive the gear 2 to rotate when it moves, and the length of the gear 2 is greater than the width of the rack plate 2. A rack plate 3 that matches the gear 2 is provided at the bottom of the moving frame, and a push rod is fixedly mounted on the top of the rack plate 3. A sliding cavity for limiting the sliding of the rack plate 3 and the push rod is opened at the bottom of the moving frame, and when the gear 2 rotates, it can drive the rack plate 3 and the push rod to move along the sliding cavity on the moving frame, and a discharging plate is fixedly mounted between the two mounting seats on the right side of the transmission belt, and the top of the discharging plate is on the same horizontal line as the top of the transmission belt, so that the transmission belt can move the model The discharging nozzle is fixedly installed on the side of the water inlet box close to the transmission belt, and a telescopic air bag is fixedly installed on the side of the water inlet box away from the nozzle, and a push plate is fixedly installed on the end of the telescopic air bag away from the water inlet box, and the push plate limits and slides on the inner side of the U-shaped slide box, and the two ends of the push plate are respectively fixedly connected to the two push rods, which can pull the push plate to compress the telescopic air bag and discharge the solvent in the water inlet box from the nozzle, and a water storage box is fixedly installed on the bottom of the U-shaped slide box, and three water injection pipes distributed equidistantly are fixedly installed between the water storage box and the water inlet box, and the water injection pipe injects the solvent in the water storage box into the water inlet box through a water pump.

[0008] Preferably, the scraping mechanism comprises a U-shaped base fixedly mounted between two adjacent mounting seats, a material receiving box being fixedly mounted on the inner side of the U-shaped base located on the right side of the transmission belt, a scraper being arranged above the material receiving box, and the scraper being able to scrape off the dissolved residue on the transmission belt, the top of the scraper being in contact with the bottom of the transmission belt, a knocking plate being fixedly mounted on both ends of the scraper, a support plate 1 being fixedly mounted on the side of the knocking plate away from the scraper, a slider being fixedly mounted on the end of the support plate 1 away from the knocking plate, a sliding groove for limiting the sliding movement of the slider is provided on the outer side of the U-shaped base, a guide rod slidingly passing through the slider is fixedly connected to the inner side of the sliding groove, and the slider is connected to the inner side of the sliding groove A spring is fixedly installed between them, so that the slider can move and reset in the slide groove; a rotating drum is provided on the outer side of the knocking plate, and the outer side of the rotating drum is in contact with the outer side of the knocking plate; two symmetrically distributed pushing strips are fixedly installed on the outer side of the rotating drum, and when the rotating drum rotates, it can repeatedly push the knocking plate to move, so as to shake the residue stuck on the scraper into the receiving box; a driven rod is fixedly installed on the inner side of the rotating drum, which slides through the outer side of the U-shaped base; a synchronous belt is rotatably installed between the driven rod and the adjacent roller, so that when the roller rotates, the driven rod is driven to rotate through the synchronous belt; a support plate 2 is rotatably installed on the end of the driven rod away from the synchronous belt, and the support plate 2 is fixedly installed on the inner side of the U-shaped base.

[0009] Preferably, a triangular bracket is fixedly installed on the outer side of the mobile frame to improve the supporting force of the mobile frame on the mobile rod.

[0010] Preferably, an insertion rod is fixedly mounted on the outer side of the movable frame, and a long groove for limiting the sliding of the insertion rod is opened on the outer side of the movable plate, so as to improve the stability of the movement of the movable plate.

[0011] Preferably, L-shaped plates are fixedly mounted between the two ends of the water inlet box and the two mounting seats respectively to provide auxiliary support for the water inlet box.

[0012] Preferably, two symmetrically distributed positioning plates are fixedly installed on the bottom of the U-shaped slide box, the discharge plate is an L-shaped structure, and two support rods sliding through the L-shaped plate and the push plate are fixedly installed between the positioning plate and the bottom of the discharge plate to improve the stability of the movement of the push plate.

[0013] Preferably, the scraper is of an inclined structure to facilitate the residue to fall into the material receiving box.

[0014] Preferably, a limiting ring is fixedly mounted on the outer side of the driven rod, and the limiting ring contacts the outer side of the U-shaped base to improve the stability of the rotation of the driven rod.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The present invention uses a peeling mechanism to feed the printed model in a transmission conveying manner, and repeatedly moves the outer side of the model when the model is moving to provide resistance for the model, making it easy to peel the flat and flexible model from the transmission belt, thereby achieving a quick demoulding effect.

[0016] The present invention uses a spraying mechanism to repeatedly spray a solvent on the outer side of a transmission belt as the rotating shaft rotates, so as to soften the raw materials adhered after the model is peeled off, and facilitate the cleaning of the transmission belt, thereby achieving the effect of facilitating the cleaning of residual raw materials.

[0017] The present invention uses a scraping mechanism to scrape off the raw materials and solvents remaining at the bottom of the transmission belt through a scraper when the transmission belt moves, and can make the scraper swing back and forth to facilitate the discharge of the residues stuck on the scraper, thereby achieving the effect of facilitating the collection of residues and facilitating continuous processing of the model. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the U-shaped base and the material receiving box in the present invention; Figure 3 It is a schematic diagram of the structure of the moving frame and the shifting block in the present invention; Figure 4 It is a schematic diagram of the structure of the push rod and the moving plate in the present invention; Figure 5 It is a schematic diagram of the structure of the water storage box and the discharge plate in the present invention; Figure 6 for Figure 5 Schematic diagram of the enlarged structure of the middle A area; Figure 7 It is a schematic diagram of the structure of the nozzle and the U-shaped slide box in the present invention; Figure 8 It is a schematic diagram of the scraper and knocking plate structure of the present invention.

[0019] In the figure: 1, heating platform; 2, roller; 3, stripping mechanism; 4, spraying mechanism; 5, scraping mechanism; 6, mounting seat; 7, motor; 8, transmission belt; 9, moving rod; 10, shifting block; 11, moving frame; 12, electric screw; 13, mounting cylinder; 14, gear 1; 15, U-shaped frame; 16, rack plate 1; 17, moving plate; 18, rack plate 2; 19, gear 2; 20, rack plate 3; 21, push rod; 22, discharge plate; 23, U-shaped slide box; 24, inlet Water box; 25. Nozzle; 26. Telescopic airbag; 27. Push plate; 28. Water storage box; 29. ​​Water injection pipe; 30. U-shaped base; 31. Material receiving box; 32. Scraper; 33. Knock plate; 34. Support plate 1; 35. Slider; 36. Guide rod; 37. Spring; 38. Rotating drum; 39. Push strip; 40. Driven rod; 41. Synchronous belt; 42. Support plate 2; 43. Triangular bracket; 44. Insert rod; 45. L-shaped plate; 46. Positioning plate; 47. Support rod; 48. Limit ring. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative inspiration are within the scope of protection of the present invention.

[0021] Example 1: Please refer to Figure 1-Figure 8 The figure shows a preheating platform rapid demoulding mechanism based on FDM technology, comprising a heating platform 1 and two rollers 2 respectively arranged on both sides of the heating platform 1, two symmetrically distributed mounting seats 6 are fixedly installed on both sides of the heating platform 1, and both ends of the roller 2 are rotatably installed between two adjacent mounting seats 6. A motor 7 is arranged on the outside of the heating platform 1, and the motor 7 is fixedly installed on the outside of the adjacent mounting seats 6. The output end of the motor 7 is fixedly connected to one end of the adjacent roller 2, and a transmission belt 8 is rotatably installed between the two rollers 2. The transmission belt 8 Used to carry the model, the heating platform 1 can heat the top of the transmission belt 8 so that the model sticks to the surface of the transmission belt 8; it also includes: a peeling mechanism 3, used to quickly demould the model on the transmission belt 8, the peeling mechanism 3 is installed between two mounting seats 6 located on the right side of the heating platform 1; a spraying mechanism 4, used to spray a solvent on the raw material residue stuck on the transmission belt 8, the spraying mechanism 4 is installed on the right side of the transmission belt 8; a scraping mechanism 5, used to scrape and clean the raw material residue stuck on the transmission belt 8, the scraping mechanism 5 is installed below the transmission belt 8.

[0022] The peeling mechanism 3 includes a moving rod 9 located above the transmission belt 8, a mounting cylinder 13 is fixedly installed on the outer side of the moving rod 9, and a plurality of equally spaced shifting blocks 10 are fixedly installed on the outer side of the mounting cylinder 13. The shifting blocks 10 are made of rubber. When the mounting cylinder 13 rotates, the outer side of the model can be shifted by the shifting blocks 10 to separate the model from the shifting blocks 10. The tops of the two mounting seats 6 on the right side of the heating platform 1 are fixedly installed with symmetrically distributed moving racks 11. The moving racks 11 are T-shaped and can be firmly installed on the tops of the mounting seats 6. Long strip holes are provided on the outer side of the moving racks 11 for the moving rods 9 to limit the sliding of the moving rods 9. The moving rod 9 can move along the inner side of the long hole, and an electric screw 12 is fixedly installed on the top of the moving frame 11. The two ends of the moving rod 9 are rotatably installed on the outer sides of the moving ends of the two electric screws 12, so that the electric screws 12 can drive the moving rod 9 to move back and forth. Gears 14 are fixedly installed on both ends of the moving rod 9. A U-shaped frame 15 is fixedly installed on the side of the moving frame 11 away from the moving end of the electric screw 12. A rack plate 16 that matches the gear 14 is fixedly installed on the inner side of the U-shaped frame 15, so that when the moving rod 9 moves, the gear 14 and the rack plate 16 can make the moving rod 9 rotate. The electric screw 12 is a prior art, and is composed of a reciprocating screw rotating between the moving frame 11 and the mounting seat 6, an electric drive mechanism installed on the moving frame 11 to control the rotation of the reciprocating screw, and a moving end screwedly connected to the outside of the reciprocating screw.

[0023] When the model is printed, the motor 7 can drive the transmission belt 8 to move through the roller 2, so that the transmission belt 8 transports the model, and the model moves to the bending part on the right side of the transmission belt 8, and makes the model contact with the shift block 10 on the mounting cylinder 13, and the electric screw 12 can drive the moving rod 9 to move upward, and the moving rod 9 drives the gear 14 to move along the inner side of the rack plate 16, so that the gear 14 drives the moving rod 9 to rotate, and the moving rod 9 drives the shift block 10 on the mounting cylinder 13 to rotate, providing resistance for the model while shifting the outer side of the model to quickly separate the model from the transmission belt 8, and after the moving rod 9 moves to the top of the long hole on the moving frame 11, the transmission belt 8 can push the model to discharge, thereby achieving the effect of quickly separating the model and automatically discharging, which is convenient for continuous printing of the model.

[0024] The spraying mechanism 4 includes a moving plate 17 fixedly mounted on the outer side of the moving end of the electric screw 12, a rack plate 2 18 is fixedly mounted on the outer side of the moving plate 17, and a gear 2 19 matched with the rack plate 2 18 is rotatably mounted on the outer side of the mounting seat 6, so that the rack plate 2 18 can drive the gear 2 19 to rotate when it moves, a rack plate 3 20 matched with the gear 2 19 is arranged at the bottom of the moving frame 11, a push rod 21 is fixedly mounted on the top of the rack plate 3 20, and a sliding cavity for limiting the sliding of the rack plate 3 20 and the push rod 21 is opened at the bottom of the moving frame 11. When the gear 2 19 rotates, it can drive the rack plate 3 20 and the push rod 21 to move along the sliding cavity on the moving frame 11, and a discharge plate 22 is fixedly mounted between the two mounting seats 6 on the right side of the transmission belt 8. The top of the discharge plate 22 is on the same horizontal line as the top of the transmission belt 8, so that the transmission belt 8 can push the model onto the discharge plate 22, and the bottom of the discharge plate 22 A U-shaped slide box 23 is fixedly installed, and a water inlet box 24 is fixedly installed at one end of the U-shaped slide box 23 close to the transmission belt 8 for storing the solvent. A nozzle 25 is fixedly installed at one end of the water inlet box 24 close to the transmission belt 8 for spraying the solvent on the outside of the transmission belt 8. A telescopic airbag 26 is fixedly installed on the side of the water inlet box 24 away from the nozzle 25. A push plate 27 is fixedly installed on the end of the telescopic airbag 26 away from the water inlet box 24. The push plate 27 is limited and slides on the U-shaped slide box. On the inner side of the box 23, the two ends of the push plate 27 are fixedly connected to the two push rods 21 respectively. The push rods 21 can pull the push plate 27 to compress the telescopic airbag 26, so that the solvent in the water inlet box 24 is discharged from the nozzle 25. A water storage box 28 is fixedly installed at the bottom of the U-shaped slide box 23. Three water injection pipes 29 with equal spacing are fixedly installed between the water storage box 28 and the water inlet box 24. The water injection pipes 29 inject the solvent in the water storage box 28 into the water inlet box 24 through a water pump. When the electric screw 12 is running, its moving end can pull the moving plate 17 to move synchronously, so that the moving plate 17 drives the gear 2 19 to rotate through the rack plate 2 18, and the gear 2 19 drives the push rod 21 to move through the rack plate 3 20, so that the push rod 21 can pull the push plate 27 to move along the inner side of the U-shaped slide box 23, squeeze the telescopic airbag 26, discharge the solvent in the water inlet box 24 from the nozzle 25, and spray the solvent on the outside of the transmission belt 8, so that the solvent softens the raw materials remaining on the transmission belt 8, which is convenient for the user to clean the residue on the transmission belt 8, thereby achieving the effect of cleaning the residue.

[0025] The scraping mechanism 5 includes a U-shaped base 30 fixedly installed between two adjacent mounting seats 6, a material receiving box 31 is fixedly installed on the inner side of the U-shaped base 30 located on the right side of the transmission belt 8, and a scraper 32 is arranged above the material receiving box 31. The scraper 32 can scrape off the dissolved residue on the transmission belt 8, and the top of the scraper 32 contacts the bottom of the transmission belt 8. Both ends of the scraper 32 are fixedly installed with a knocking plate 33, and a support plate 34 is fixedly installed on the side of the knocking plate 33 away from the scraper 32. A slider 35 is fixedly installed on the end of the support plate 34 away from the knocking plate 33. A sliding groove for limiting the sliding of the slider 35 is opened on the outer side of the U-shaped base 30, and a guide rod 36 sliding through the slider 35 is fixedly connected to the inner side of the sliding groove, and a spring is fixedly installed between the slider 35 and the inner side of the sliding groove. 37, so that the slider 35 can move and reset in the slide groove, a rotating drum 38 is arranged on the outer side of the knocking plate 33, the outer side of the rotating drum 38 is in contact with the outer side of the knocking plate 33, and two symmetrically distributed push strips 39 are fixedly installed on the outer side of the rotating drum 38. When the rotating drum 38 rotates, it can repeatedly push the knocking plate 33 to move, so as to facilitate the shaking of the residues stuck on the scraper 32 into the receiving box 31. A driven rod 40 that slides through the outer side of the U-shaped base 30 is fixedly installed on the inner side of the rotating drum 38, and a synchronous belt 41 is rotatably installed between the driven rod 40 and the adjacent roller 2, so that when the roller 2 rotates, the driven rod 40 is driven to rotate through the synchronous belt 41, and a support plate 2 42 is rotatably installed on the end of the driven rod 40 away from the synchronous belt 41, and the support plate 2 42 is fixedly installed on the inner side of the U-shaped base 30; When the transmission belt 8 moves, the scraper 32 and the residue on the transmission belt 8 can be scraped and cleaned, and the roller 2 can drive the two driven rods 40 to rotate synchronously through the synchronous belt 41, so that the driven rod 40 drives the two push bars 39 on the rotating drum 38 to rotate. When the push bars 39 contact the knocking plates 33 at both ends of the scraper 32, the knocking plates 33 can be driven to move, so that the knocking plates 33 drive the slider 35 to move along the slide groove on the U-shaped base 30 through the support plate 34, and the spring 37 is compressed. When the push bar 39 is away from the scraper 32, the elasticity of the spring 37 is used to reset the slider 35, and the knocking plate 33 can drive the scraper 32 to move back and forth along the outside of the transmission belt 8, and shake the residue stuck on the scraper 32 into the receiving box 31 for storage, so as to facilitate the continuous cleaning of the transmission belt 8 and the continuous processing of the model.

[0026] Working principle: First, the user starts the motor 7, so that the motor 7 drives the corresponding roller 2 to rotate, and the roller 2 drives the transmission belt 8 to move and rotate with another roller 2, and the transmission belt 8 transports the printed model in the direction of the moving rod 9, and the model moves to the bending point on the right side of the transmission belt 8, so that the bottom corner of the model is tilted, and the model contacts the shift block 10 on the installation cylinder 13. At this time, the electric screw 12 drives the moving rod 9 to move upward, and the moving rod 9 drives the gear 14 to move along the inner side of the rack plate 16, so that the gear 14 drives the moving rod 9 to rotate, and the moving rod 9 drives the shift block 10 on the installation cylinder 13 to rotate, so that the shift block 10 While providing resistance for the model, the outer side of the model is moved, and the model can be quickly separated from the transmission belt 8. When the moving rod 9 moves to the top of the long hole on the moving frame 11, the shifting block 10 is away from the model, so that the transmission belt 8 can push the model to discharge the material, and the model is moved to the discharge plate 22. At the same time, the moving end of the electric screw 12 pulls the moving plate 17 to move upward synchronously, so that the moving plate 17 drives the gear 2 19 to rotate through the rack plate 2 18, and the gear 2 19 drives the rack plate 3 20 and the push rod 21 to move along the sliding cavity on the moving frame 11, so that the push rod 21 pulls the push plate 27 to move along the inner side of the U-shaped slide box 23, and the push plate 27 can The telescopic airbag 26 is squeezed to discharge the solvent in the water inlet box 24 from the nozzle 25, and the solvent is sprayed on the outer side of the transmission belt 8, so that the solvent softens the raw material remaining on the transmission belt 8. As the transmission belt 8 moves, the scraper 32 can scrape and clean the softened raw material residue on the transmission belt 8, and the roller 2 drives the two driven rods 40 to rotate synchronously through the synchronous belt 41, so that the driven rod 40 drives the two push bars 39 on the rotating drum 38 to rotate. As the rotating drum 38 rotates, the push bars 39 contact the knocking plates 33 at both ends of the scraper 32, so that the push bars 39 push the knocking plates 33 to move, and the knocking plates 33 pass through the support plates. A 34 drives the slider 35 to move along the slide groove on the U-shaped base 30 to compress the spring 37. Then, the push bar 39 moves away from the scraper 32. The elasticity of the spring 37 is used to move the slider 35 back and forth, and the knocking plate 33 can drive the scraper 32 to move back and forth. As a result, the scraper 32 moves back and forth on the outside of the transmission belt 8, and the residue stuck on the scraper 32 is shaken into the receiving box 31 for storage, realizing the self-cleaning function, thereby achieving the effect of rapid separation of the model and automatic discharge, and can clean and collect the residual raw materials on the transmission belt 8, which is convenient for continuous printing of the model and improves the convenience of model printing.

[0027] Example 2: Please refer to Figure 3 and Figure 4The present embodiment further explains the first embodiment. A triangular bracket 43 is fixedly installed on the outer side of the movable frame 11 in the figure to improve the supporting force of the movable frame 11 on the movable rod 9. An insertion rod 44 is fixedly installed on the outer side of the movable frame 11. A long strip groove for limiting the sliding of the insertion rod 44 is opened on the outer side of the movable plate 17 to improve the stability of the movement of the movable plate 17.

[0028] In this embodiment: when the model contacts the shift block 10, the triangular bracket 43 can improve the stability of the moving frame 11, so that the moving frame 11 can stably provide support for the moving rod 9, and when the moving plate 17 moves, it can move along the outer side of the insertion rod 44 through the long groove to keep the moving plate 17 moving vertically.

[0029] Example 3: Please refer to Figure 5 and Figure 7 This embodiment further illustrates other embodiments. L-shaped plates 45 are fixedly installed between the two ends of the water inlet box 24 and the two mounting seats 6 to provide auxiliary support for the water inlet box 24. Two symmetrically distributed positioning plates 46 are fixedly installed at the bottom of the U-shaped sliding box 23. The discharge plate 22 is an L-shaped structure. Two support rods 47 that slide through the L-shaped plate 45 and the push plate 27 are fixedly installed between the positioning plate 46 and the bottom of the discharge plate 22 to improve the stability of the movement of the push plate 27.

[0030] In this embodiment: the L-shaped plate 45 can provide auxiliary support for the water inlet box 24, so that the push plate 27 can smoothly squeeze the telescopic airbag 26, and when the push plate 27 moves, it can move along the support rod 47 on the positioning plate 46, thereby improving the durability of the push plate 27 and preventing the push plate 27 from bending.

[0031] Example 4: Please refer to Figure 5 and Figure 8 This embodiment further illustrates other embodiments. The scraper 32 shown in the figure is in an inclined structure, which facilitates the residue to fall into the receiving box 31. A limit ring 48 is fixedly installed on the outer side of the driven rod 40. The limit ring 48 contacts the outer side of the U-shaped base 30 to improve the stability of the rotation of the driven rod 40.

[0032] In the present embodiment: the inclined structure of the scraper 32 enables the scraper 32 to quickly shake the residue stuck on the transmission belt 8 into the receiving box 31 as the scraper 32 swings back and forth, thereby improving the efficiency of cleaning the material; and when the driven rod 40 rotates, the limit ring 48 can provide auxiliary support for the driven rod 40, thereby improving the stability of the rotation of the driven rod 40 and preventing the vibration generated by the rotating drum 38 and the knocking plate 33 from affecting the driven rod 40.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A preheating platform rapid demoulding mechanism based on FDM technology, characterized in that: include: A heating platform (1) and two rollers (2) respectively arranged on both sides of the heating platform (1); two symmetrically distributed mounting seats (6) are fixedly installed on both sides of the heating platform (1); both ends of the roller (2) are rotatably installed between two adjacent mounting seats (6); a motor (7) is arranged on the outside of the heating platform (1); the motor (7) is fixedly installed on the outside of the adjacent mounting seats (6); the output end of the motor (7) is fixedly connected to one end of the adjacent roller (2); and a transmission belt (8) is rotatably installed between the two rollers (2); Also includes: A stripping mechanism (3) for quickly demoulding the model on the transmission belt (8), the stripping mechanism (3) being installed between the two mounting seats (6) located on the right side of the heating platform (1); A spraying mechanism (4) is used to spray a solvent on the raw material residue adhering to the transmission belt (8), and the spraying mechanism (4) is installed on the right side of the transmission belt (8); The scraping mechanism (5) is used to scrape and clean the raw material residue adhering to the transmission belt (8), and the scraping mechanism (5) is installed below the transmission belt (8).

2. According to claim 1, a preheating platform rapid demoulding mechanism based on FDM technology is characterized in that: The stripping mechanism (3) comprises a moving rod (9) located above the transmission belt (8), a mounting tube (13) is fixedly mounted on the outer side of the moving rod (9), a plurality of shifting blocks (10) distributed at equal intervals are fixedly mounted on the outer side of the mounting tube (13), and a symmetrically distributed moving frame (11) is fixedly mounted on the top of the two mounting seats (6) located on the right side of the heating platform (1), the moving frame (11) is in a T-shaped structure, and a space is provided on the outer side of the moving frame (11) for limiting the moving rod (9). The movable frame (11) is provided with a sliding long strip hole, an electric screw (12) is fixedly mounted on the top of the movable frame (11), the two ends of the movable rod (9) are respectively rotatably mounted on the outer sides of the two movable ends of the electric screw (12), and the two ends of the movable rod (9) are fixedly mounted with a gear 1 (14), a U-shaped frame (15) is fixedly mounted on the side of the movable frame (11) away from the movable end of the electric screw (12), and a rack plate 1 (16) matching the gear 1 (14) is fixedly mounted on the inner side of the U-shaped frame (15).

3. According to claim 2, a preheating platform rapid demoulding mechanism based on FDM technology is characterized in that: The spraying mechanism (4) comprises a moving plate (17) fixedly mounted on the outer side of the moving end of the electric screw (12), a rack plate 2 (18) fixedly mounted on the outer side of the moving plate (17), a gear 2 (19) matched with the rack plate 2 (18) rotatably mounted on the outer side of the mounting seat (6), the length of the gear 2 (19) being greater than the width of the rack plate 2 (18), a rack plate 3 (20) matched with the gear 2 (19) being arranged at the bottom of the moving frame (11), a push rod (21) fixedly mounted on the top of the rack plate 3 (20), a sliding cavity for limiting sliding of the rack plate 3 (20) and the push rod (21) being provided at the bottom of the moving frame (11), a discharge plate (22) fixedly mounted between the two mounting seats (6) located on the right side of the transmission belt (8), the top of the discharge plate (22) being in contact with the top of the transmission belt (8). The discharge plate (22) is arranged on a horizontal line, a U-shaped slide box (23) is fixedly mounted on the bottom of the discharge plate (22), a water inlet box (24) is fixedly mounted on one end of the U-shaped slide box (23) close to the transmission belt (8), a nozzle (25) is fixedly mounted on one end of the water inlet box (24) close to the transmission belt (8), a telescopic air bag (26) is fixedly mounted on one side of the water inlet box (24) away from the nozzle (25), a push plate (27) is fixedly mounted on one end of the telescopic air bag (26) away from the water inlet box (24), the push plate (27) is limitedly slidable on the inner side of the U-shaped slide box (23), the two ends of the push plate (27) are respectively fixedly connected to the two push rods (21), a water storage box (28) is fixedly mounted on the bottom of the U-shaped slide box (23), and three water injection pipes (29) distributed at equal intervals are fixedly mounted between the water storage box (28) and the water inlet box (24).

4. According to claim 3, a preheating platform rapid demoulding mechanism based on FDM technology is characterized in that: The scraping mechanism (5) comprises a U-shaped base (30) fixedly mounted between two adjacent mounting seats (6); a receiving box (31) is fixedly mounted on the inner side of the U-shaped base (30) located on the right side of the transmission belt (8); a scraper (32) is arranged above the receiving box (31); the top of the scraper (32) contacts the bottom of the transmission belt (8); knocking plates (33) are fixedly mounted on both ends of the scraper (32); a support plate (34) is fixedly mounted on the side of the knocking plate (33) away from the scraper (32); a slider (35) is fixedly mounted on the end of the support plate (34) away from the knocking plate (33); a slide groove for limiting the sliding of the slider (35) is provided on the outer side of the U-shaped base (30); a sliding through groove is fixedly connected to the inner side of the slide groove. A guide rod (36) passes through the slider (35), a spring (37) is fixedly installed between the slider (35) and the inner side of the slide groove, a rotating cylinder (38) is arranged on the outer side of the knock plate (33), the outer side of the rotating cylinder (38) contacts the outer side of the knock plate (33), two symmetrically distributed push strips (39) are fixedly installed on the outer side of the rotating cylinder (38), a driven rod (40) is fixedly installed on the inner side of the rotating cylinder (38) and slides through the outer side of the U-shaped base (30), a synchronous belt (41) is rotatably installed between the driven rod (40) and the adjacent roller (2), and a support plate 2 (42) is rotatably installed on the end of the driven rod (40) away from the synchronous belt (41), and the support plate 2 (42) is fixedly installed on the inner side of the U-shaped base (30).

5. According to claim 2, a preheating platform rapid demoulding mechanism based on FDM technology is characterized in that: A triangular bracket (43) is fixedly mounted on the outer side of the movable frame (11).

6. According to claim 3, a preheating platform rapid demoulding mechanism based on FDM technology is characterized in that: An insertion rod (44) is fixedly mounted on the outer side of the movable frame (11), and a long groove for limiting the sliding of the insertion rod (44) is provided on the outer side of the movable plate (17).

7. According to claim 3, a preheating platform rapid demoulding mechanism based on FDM technology is characterized in that: L-shaped plates (45) are fixedly mounted between the two ends of the water inlet box (24) and the two mounting seats (6).

8. The preheating platform rapid demoulding mechanism based on FDM technology according to claim 7, characterized in that: Two symmetrically distributed positioning plates (46) are fixedly mounted on the bottom of the U-shaped slide box (23); the discharge plate (22) is L-shaped; and two support rods (47) are fixedly mounted between the positioning plate (46) and the bottom of the discharge plate (22) and slideably penetrate the L-shaped plate (45) and the push plate (27).

9. The preheating platform rapid demoulding mechanism based on FDM technology according to claim 4, characterized in that: The scraper (32) has an inclined structure.

10. The preheating platform rapid demoulding mechanism based on FDM technology according to claim 4, characterized in that: A limiting ring (48) is fixedly mounted on the outer side of the driven rod (40), and the limiting ring (48) is in contact with the outer side of the U-shaped base (30).

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