Stress relieving device for metal 3D printing forming part

Abstract

The utility model discloses a stress relief device for metal 3D printing forming parts, and relates to the technical field of stress relief devices, the stress relief device comprises an annealing furnace and a heater, placing grooves are symmetrically formed in the lower part of the annealing furnace, bottom sealing plates are fixed in the annealing furnace at the bottoms of the placing grooves, and templates are slidably inserted in the two placing grooves; according to the utility model, the template is directly driven to enter the annealing furnace through the moving belts on the two sides, and after the template is heated and annealed, when the template is moved to the heat dissipation window, the bottom of the template can rapidly dissipate heat, so that the heat dissipation efficiency of the template is greatly improved. And the heat dissipation speed after annealing is guaranteed, the problem that when an existing stress relieving device for the metal 3D printing forming part is used, operation is strenuous and tedious is solved, and more labor is saved and convenience is achieved when the metal forming part is transferred.

Description

Technical Field

[0001] This utility model relates to the field of stress relief device technology, and in particular to a stress relief device for metal 3D printed parts. Background Technology

[0002] 3D printing equipment is a device that uses digital model files as a basis and employs special wax materials, powdered metals, or plastics and other adhesive materials to create three-dimensional objects by printing layers of adhesive materials. During the process of building parts layer by layer, the heating and cooling of the metal will generate internal stress. These internal stresses must be released before the part is removed from the template, otherwise it will cause the part to deform or even crack. Currently, heat treatment is generally used to eliminate the residual stress generated during the printing process. Common heat treatment methods include annealing, solution treatment, and aging treatment.

[0003] However, in the existing technology, when annealing to eliminate stress in printed parts, the printed parts along with the template need to be removed from the printing table and placed inside the annealing furnace. During the process of moving the parts, due to the large weight of the metal parts, it is inconvenient to pick up the bottom template by placing it flat on the conveyor belt, which wastes manpower and makes the operation of eliminating stress quite cumbersome. Utility Model Content

[0004] The purpose of this invention is to solve the problem that the stress relief device for metal 3D printed parts is laborious and cumbersome to operate in the existing technology, and to propose a stress relief device for metal 3D printed parts.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: it includes an annealing furnace and a heater. The lower part of the annealing furnace is symmetrically provided with placement slots. A bottom sealing plate is fixed inside the annealing furnace at the bottom of the placement slot. Templates are slidably inserted inside the two placement slots. Drive rollers are symmetrically rotatably connected inside the placement slots outside the templates. Each group of two drive rollers is connected by a moving belt drive. A servo motor is provided on the bottom surface of the annealing furnace at one end of the two drive rollers. The output end of the servo motor rotates through the annealing furnace and is fixed to the bottom surface of the drive rollers. Several feeding push plates are equidistantly fixed on the outer surface of each moving belt for pushing the template to move.

[0006] Preferably, both ends of the annealing furnace are rotatably equipped with heat insulation curtains, the inside of the annealing furnace on the side of the heater is rotatably equipped with a heat insulation plate, both ends of the annealing furnace are rotatably equipped with heat insulation curtains, and the bottom sealing plate on the side of the heater is provided with a heat dissipation window.

[0007] Preferably, a wind box is fixedly installed through the side wall of the annealing furnace on the side of the heater, and a fan with an air outlet facing the annealing furnace is installed inside the wind box. An air outlet is fixedly installed through the other side wall of the annealing furnace on the side of the heater.

[0008] Preferably, the thickness of the template is less than the height inside the placement slot, the width of the template is greater than the distance between the two placement slots, and the distance between the two feeding push plates is greater than the length of the template.

[0009] Preferably, the bottom surfaces of the templates on both sides of the placement slots are fixed with limiting base plates, and the outer surfaces of the two limiting base plates are slidably attached to the lower inner wall of the annealing furnace.

[0010] Preferably, a support side plate is fitted inside the moving belt between the two drive rollers, and the upper and lower ends of the support side plate are fixedly connected to the upper and lower walls of the placement groove.

[0011] Preferably, a rotating cylinder is fixed to the top of the insulation board and the two insulation curtains. The rotating cylinder is rotatably sleeved on the fixed rod. The front and rear ends of the fixed rod are fixed to the inner wall of the annealing furnace. The insulation board is symmetrically provided with baffles near the heater side. The outer ends of the baffles are all fixed to the inner wall of the annealing furnace.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. In this utility model, the template is directly driven into the annealing furnace by the moving belts on both sides. After the template is heated and annealed, it can quickly dissipate heat at its bottom when it is moved to the heat dissipation window, which ensures the heat dissipation speed after annealing. This solves the problem of the laborious and cumbersome operation of the existing stress relief device for metal 3D printed parts, and makes it more labor-saving and convenient when transferring metal parts.

[0014] 2. In this utility model, the heating zone and the cooling zone are separated by an insulation plate, which ensures the heating effect of the heating zone and the cooling effect of the cooling zone, making it convenient to remove the metal forming parts from the template after annealing, and further improving the practicality of the stress relief device. Attached Figure Description

[0015] Figure 1 This utility model provides a three-dimensional structural schematic diagram of a stress relief device for metal 3D printed parts;

[0016] Figure 2 This utility model provides a three-dimensional structural schematic diagram of a stress relief device for metal 3D printed parts;

[0017] Figure 3 This utility model provides a three-dimensional structural schematic diagram of a stress relief device for metal 3D printed parts;

[0018] Figure 4 This invention provides a three-dimensional structural schematic diagram of a stress relief device for metal 3D printed parts.

[0019] Legend: 1. Annealing furnace; 2. Heater; 3. Template; 4. Placement trough; 5. Drive roller; 6. Moving belt; 7. Servo motor; 8. Feed pusher plate; 9. Support side plate; 10. Limiting bottom plate; 11. Air box; 12. Air outlet; 13. Bottom sealing plate; 14. Heat dissipation window; 15. Fixing rod; 16. Rotating cylinder; 17. Insulation board; 18. Stop block; 19. Insulation curtain. Detailed Implementation

[0020] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification. Example

[0022] like Figure 1-4 As shown, this utility model provides a stress relief device for metal 3D printed parts, including an annealing furnace 1 and a heater 2. The annealing furnace 1 has symmetrical placement slots 4 at the bottom. A bottom sealing plate 13 is fixed inside the annealing furnace 1 at the bottom of the placement slot 4. The bottom surfaces of the templates 3 on the sides of the two placement slots 4 are fixed with limiting base plates 10. The outer surfaces of the two limiting base plates 10 are slidably attached to the lower inner wall of the annealing furnace 1. Templates 3 are slidably inserted into the two placement slots 4. The thickness of the template 3 is less than the height inside the placement slot 4, and the width of the template 3 is greater than the distance between the two placement slots 4. The distance between the two feeding push plates 8 is greater than the length of the template 3. The placement slots 4 outside the template 3 are symmetrically rotatably connected with drive rollers 5. Each group of two drive rollers 5 is connected by a moving belt 6. A servo motor 7 is set on the bottom surface of the annealing furnace 1 at the bottom of one end of the two drive rollers 5. The output end of the servo motor 7 rotates through the annealing furnace 1 and is fixed to the bottom surface of the drive rollers 5. Several feeding push plates 8 are equidistantly fixed on the outer surface of each moving belt 6 for pushing the template 3 to move.

[0023] The specific setup and function of this embodiment are described below: A bellows 11 is fixedly installed through the side wall of the annealing furnace 1 on the side of the heater 2. A fan with an air outlet section facing the annealing furnace 1 is installed inside the bellows 11. An air outlet 12 is fixedly installed through the other side wall of the annealing furnace 1 on the side of the heater 2. A support side plate 9 is sleeved inside the moving belt 6 between the two drive rollers 5. The upper and lower ends of the support side plate 9 are fixedly connected to the upper and lower walls of the placement groove 4. The support side plate 9 supports the feeding push plate 8 and limits the template 3, making the template 3 more stable when moving. Example

[0024] like Figure 1-4 As shown, heat insulation curtains 19 are rotatably installed at both ends of the annealing furnace 1. Heat insulation plate 17 is rotatably installed inside the annealing furnace 1 on the side of the heater 2. Heat insulation curtains 19 are rotatably installed at both ends of the annealing furnace 1. Heat dissipation window 14 is provided through the bottom of the bottom sealing plate 13 on the side of the heater 2. Rotating cylinders 16 are fixed at the top of the heat insulation plate 17 and the two heat insulation curtains 19. The rotating cylinders 16 are rotatably sleeved on the fixed rod 15. The front and rear ends of the fixed rod 15 are fixed to the inner wall of the annealing furnace 1. The heat insulation plate 17 is symmetrically provided with baffles 18 near the heater 2. The outer ends of the baffles 18 are fixed to the inner wall of the annealing furnace 1.

[0025] The overall effect of this embodiment is that the heating zone and cooling zone inside the annealing furnace 1 are separated by the insulation plate 17. With the heat dissipation window 14 at the bottom and the air box 11 at the rear, the annealed metal forming parts can be cooled in time. During cooling, the wind force is prevented from blowing the insulation plate 17 toward the template 3.

[0026] The usage and working principle of this device are as follows: When stress relief annealing is required, the template 3 is aligned and placed inside the two placement slots 4. When placing it, the pre-placed end of the template 3 is positioned on the side of the moving belt 6 between the two feeding push plates 8. The servo motor 7 drives the drive roller 5 to rotate, and the drive roller 5 drives the moving belt 6 to move. When the moving belt 6 moves, it drives the feeding push plates 8 on both sides to move and push the template 3, so that the template 3 passes over the heat insulation curtain 19 and moves into the annealing furnace 1. The heater 2 is turned on to heat the inside of the annealing furnace 1, and the metal forming parts inside the annealing furnace 1 are heated. After heating, when it moves to the position of the heat insulation plate 17, the heat insulation plate 17 is pushed, so that the heat insulation plate 17 drives the rotating cylinder 16 to rotate until it passes over the heat insulation plate 17. Then, the template 3 is cooled through the heat dissipation window 14 at the bottom. At the same time, the fan inside the air box 11 runs to cool the metal forming parts. When the template 3 moves to the discharge port of the placement slot 4, the receiving personnel pick up the template 3 and then remove the metal forming parts from the template 3.

[0027] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A metal 3D printed shaped part stress relieving apparatus comprising an annealing furnace (1) and a heater (2), characterized in that: The annealing furnace (1) is symmetrically provided with placement slots (4) at the bottom. A bottom sealing plate (13) is fixed inside the annealing furnace (1) at the bottom of the placement slot (4). Templates (3) are slidably inserted inside the two placement slots (4). Drive rollers (5) are symmetrically rotated inside the placement slots (4) outside the templates (3). Each set of two drive rollers (5) is connected by a moving belt (6). A servo motor (7) is provided on the bottom surface of the annealing furnace (1) at the bottom of the two drive rollers (5) at one end. The output end of the servo motor (7) rotates through the annealing furnace (1) and is fixed on the bottom surface of the drive rollers (5). Several feed push plates (8) are fixed at equal intervals on the outer surface of each moving belt (6) to push the templates (3) to move.

2. A stress relieving apparatus for metal 3D printed formations according to claim 1, characterized in that: The annealing furnace (1) is equipped with heat insulation curtains (19) at both ends, and the heater (2) is equipped with heat insulation board (17) inside the annealing furnace (1) on the side. The bottom sealing plate (13) on the side of the heater (2) is equipped with heat dissipation window (14) through the bottom.

3. The stress relief device for metal 3D printed parts according to claim 1, characterized in that: A bellows (11) is fixed through the side wall of the annealing furnace (1) on the side of the heater (2). A fan with an air outlet section facing the annealing furnace (1) is provided inside the bellows (11). An air outlet (12) is fixed through the other side wall of the annealing furnace (1) on the side of the heater (2).

4. The stress relief device for metal 3D printed parts according to claim 1, characterized in that: The thickness of the template (3) is less than the height inside the placement slot (4), the width of the template (3) is greater than the distance between the two placement slots (4), and the distance between the two feeding push plates (8) is greater than the length of the template (3).

5. The stress relief device for metal 3D printed parts according to claim 1, characterized in that: The bottom surfaces of the templates (3) on the sides of the two placement slots (4) are fixed with limiting base plates (10), and the outer surfaces of the two limiting base plates (10) slide against the lower inner wall of the annealing furnace (1).

6. The stress relief device for metal 3D printed parts according to claim 1, characterized in that: The moving belt (6) between the two drive rollers (5) is fitted with a support side plate (9), and the upper and lower ends of the support side plate (9) are fixedly connected to the upper and lower walls of the placement groove (4).

7. The stress relief device for metal 3D printed parts according to claim 2, characterized in that: The top of the insulation board (17) and the two insulation curtains (19) are all fixed with rotating cylinders (16). The rotating cylinders (16) are rotatably sleeved on the fixed rods (15). The front and rear ends of the fixed rods (15) are fixed on the inner wall of the annealing furnace (1). The insulation board (17) is symmetrically provided with baffles (18) on the side near the heater (2). The outer ends of the baffles (18) are all fixed on the inner wall of the annealing furnace (1).

Images