High-temperature-resistant additive equipment

Abstract

The utility model discloses high-temperature-resistant additive equipment which comprises a base, a support is installed on the top of the base, an additive spray gun body is arranged on the top of the inner side of the support, a water cooling assembly is installed on one side of the top of the base, and the water return end and the water outlet end of the water cooling assembly are communicated with a first hose and a second hose respectively. The end, away from the spraying end, of the surface of the additive spraying gun body is sleeved with a first protection sleeve, and the surface of the first protection sleeve is rotationally connected with the inner side of the support. By arranging the first protective sleeve and the second protective sleeve, heat insulation protection can be conducted on the additive spray gun body and the connecting mechanism respectively, and heat is prevented from diffusing and hurting surrounding parts and operators; according to the additive spray gun, the water cooling assembly and the heat dissipation assembly are arranged, the first protective sleeve can be cooled, heat leakage is further prevented, and the operation safety of the additive spray gun body is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of additive manufacturing, in particular to a high-temperature resistant additive equipment. Background Art

[0002] Additive manufacturing, commonly known as 3D printing, integrates computer-aided design, material processing and molding technology, and is based on digital model files. It uses software and numerical control systems to stack special metal materials, non-metallic materials and medical biomaterials layer by layer through extrusion, sintering, melting, photocuring, spraying, etc. to produce physical objects.

[0003] Chinese Patent No.: CN107584627B proposes an additive manufacturing device, including a frame; a molding cavity, which is a hollow structure, and a molding cavity is formed inside, and the molding cavity includes a substrate, and the substrate is provided with a through hole; a piston is arranged in the molding cavity, and the molding cavity is divided into two spaces; a lifting device is arranged outside the molding cavity; a lifting rod, one end of which is fixed to the piston, and the other end passes through the through hole and extends out of the molding cavity, and is connected to the lifting device, and the lifting device drives the lifting rod to drive the piston to reciprocate in the molding cavity; and a bellows is sleeved on the lifting rod, one end of which is fixed to the side of the piston close to the lifting rod, and the other end is fixed to the inner surface of the substrate. The above-mentioned additive manufacturing equipment sets the lifting device outside the molding cavity, which greatly reduces the parts that need to be sealed in the molding cavity while ensuring the accuracy. It only needs to seal the periphery of the lifting rod, which reduces the production cost and installation difficulty.

[0004] The above patent only strengthens the sealing of the material cavity in the additive device, but lacks the high temperature resistance enhancement of the additive spray gun. This may easily cause the pipes and other components connecting the additive spray gun and the cavity to be affected by high temperature, and may also easily cause high temperature conduction to harm the operator. Therefore, we need to propose a high temperature resistant additive device. Utility Model Content

[0005] The purpose of the utility model is to provide a high temperature resistant additive device, which has the advantages of good protection effect and good high temperature resistance effect, so as to solve the problems raised in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical solutions: a high temperature resistant additive device, comprising a base, a bracket is installed on the top of the base, an additive spray gun body is arranged on the top of the inner side of the bracket, a water cooling component is installed on one side of the top of the base, and a first hose and a second hose are respectively connected to the water return end and the water outlet end of the water cooling component;

[0007] A first protective sleeve is sleeved on the surface of the additive spray gun body and at one end thereof which is located away from the spray end, and the surface of the first protective sleeve is rotatably connected to the inner side of the bracket;

[0008] One end of the additive spray gun body is provided with a connection mechanism connected to the first protective sleeve, and the second protective sleeve is sleeved on the outside of the connection mechanism;

[0009] A heat dissipation component is sleeved on the surface of the first protective sleeve and located between the bracket and the second protective sleeve. The heat dissipation component is communicated with the tops of the first hose and the second hose.

[0010] Preferably, the water cooling assembly comprises a water tank, a counterweight block is installed at the bottom of the water tank, and the bottom of the counterweight block is connected to the top of the base.

[0011] Preferably, a refrigeration unit is installed at the bottom of the water tank, the refrigeration end of the refrigeration unit extends to the interior of the water tank, a serpentine copper tube is installed inside the water tank, a pump is installed on one side of the top of the water tank, one end of the serpentine copper tube extends to the outside of the water tank and is connected to the pumping end of the pump, the drainage end of the pump is connected to the bottom of the first hose, and the other end of the serpentine copper tube extends to the outside of the water tank and is connected to the bottom of the second hose.

[0012] Preferably, a motor is installed on one side of the top of the water tank, a stirring shaft is installed on the output shaft of the motor, and the bottom of the stirring shaft extends to the inside of the water tank.

[0013] Preferably, the heat dissipation assembly includes a shell, which is sleeved on the outside of the first protective sleeve, and heat dissipation grooves are provided on the upper and lower sides of the surface of the first protective sleeve and at positions corresponding to the shell, and a heat conducting plate is embedded in the heat dissipation groove, the outer side of the heat conducting plate is in contact with the surface of the shell, and the inner side of the heat conducting plate is in contact with the surface of the additive spray gun body, the top of the first hose is connected to the bottom of the shell, and the top of the second hose is connected to the top of the shell.

[0014] Preferably, the connecting mechanism includes a stud, which is installed at one end of the additive spray gun body close to the second protective sleeve, one end of the stud slides through the first protective sleeve and extends to the outside of the first protective sleeve, the surface of the stud is threadedly connected with a screw sleeve, and one side of the screw sleeve is in contact with the surface of the first protective sleeve.

[0015] Preferably, the external thread of the first protective sleeve is connected to a screw rod, the bottom of the screw rod passes through the second protective sleeve and is bolted to the surface of the first protective sleeve, and a limit block is installed on the surface of the stud and inside the first protective sleeve, and one side of the limit block is in contact with the inner wall of the first protective sleeve.

[0016] Preferably, a connecting rod is formed between the heat dissipation grooves, a positioning rod is provided on the surface of the heat conducting plate, a positioning hole matched with the positioning rod is opened on the surface of the connecting rod, and one end of the positioning rod slides and extends into the interior of the positioning hole.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. The utility model can provide heat insulation protection for the additive spray gun body and the connecting mechanism respectively by arranging the first protective cover and the second protective cover to prevent heat diffusion and damage to surrounding parts and operators.

[0019] 2. The utility model can cool down the first protective sleeve by arranging a water cooling component and a heat dissipation component, further preventing heat leakage, and improving the safety of the additive spray gun body during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the utility model;

[0021] Figure 2 This is a front cross-sectional view of the first protective cover of the utility model;

[0022] Figure 3 This is an exploded view of the heat conducting plate of the utility model;

[0023] Figure 4 This is a front cross-sectional view of the water tank of the utility model;

[0024] Figure 5 It is a side structural schematic diagram of the heat conducting plate of the utility model.

[0025] In the figure: 1. base; 2. bracket; 3. additive spray gun body; 4. first hose; 5. first protective cover; 6. second protective cover; 7. water tank; 8. counterweight; 9. serpentine copper tube; 10. motor; 11. stirring shaft; 12. shell; 14. stud; 15. screw rod; 16. limit block; 17. screw sleeve; 18. second hose; 19. pump; 20. heat sink; 21. connecting rod; 22. positioning rod; 23. positioning hole; 24. heat conduction plate. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-5The utility model provides a technical solution: a high temperature resistant additive device, comprising a base 1, a bracket 2 is installed on the top of the base 1, an additive spray gun body 3 is arranged on the top of the inner side of the bracket 2, wherein a roller is installed at the bottom of the base 1, which can improve the maneuverability of the device and facilitate the movement of the device.

[0028] The surface of the additive spray gun body 3 and the end located away from the injection end is sleeved with a first protective sleeve 5, and the surface of the first protective sleeve 5 is rotatably connected to the inner side of the bracket 2; by setting the first protective sleeve 5, the first protective sleeve 5 includes a silicate lining and a ceramic outer lining, which are bonded by a high-temperature resistant colloid, and has the advantages of good heat insulation and high temperature resistance, and can protect the outside of the additive spray gun body 3 to prevent heat diffusion and damage to surrounding parts and operators. The bracket 2 can support the additive spray gun body 3 and facilitate its rotation in the bracket 2.

[0029] One end of the additive spray gun body 3 is provided with a connection mechanism connected to the first protective sleeve 5, and the outside of the connection mechanism is sleeved with a second protective sleeve 6; the second protective sleeve 6 is provided to protect the outside of the connection mechanism to prevent heat from diffusing outward through the connection mechanism. A handle is installed at one end of the second protective sleeve 6, and the user can rotate the additive spray gun body 3 by holding the handle, so that it can be used in conjunction with the bracket 2 to control and adjust the angle of the additive spray gun body 3.

[0030] A water cooling assembly is installed on one side of the top of the base 1, and the return end and the outlet end of the water cooling assembly are respectively connected with a first hose 4 and a second hose 18. The water cooling assembly includes a water tank 7, and a counterweight 8 is installed at the bottom of the water tank 7. The bottom of the counterweight 8 is connected to the top of the base 1. By providing the counterweight 8, the center of gravity of the device can be lowered, the phenomenon of top-heavyness can be avoided, and the stability of the device can be improved.

[0031] A refrigeration unit is installed at the bottom of the water tank 7, and the refrigeration end of the refrigeration unit extends to the inside of the water tank 7. A serpentine copper tube 9 is installed inside the water tank 7. A pump 19 is installed on one side of the top of the water tank 7. One end of the serpentine copper tube 9 extends to the outside of the water tank 7 and is connected to the pumping end of the pump 19. The drainage end of the pump 19 is connected to the bottom of the first hose 4. The other end of the serpentine copper tube 9 extends to the outside of the water tank 7 and is connected to the bottom of the second hose 18. Coolant is injected into the water tank 7, and the coolant can be continuously cooled by starting the refrigeration unit.

[0032] A motor 10 is installed on one side of the top of the water tank 7, and a stirring shaft 11 is installed on the output shaft of the motor 10, and the bottom of the stirring shaft 11 extends to the inside of the water tank 7. By starting the motor 10, the output shaft of the motor 10 can stir the coolant in the water tank 7 so that it is heated evenly.

[0033] A heat dissipation component is sleeved on the surface of the first protective sleeve 5 and located between the bracket 2 and the second protective sleeve 6. The heat dissipation component is connected to the top of the first hose 4 and the second hose 18. The heat dissipation component includes a shell 12, which is sleeved on the outside of the first protective sleeve 5. Heat dissipation grooves 20 are provided on the upper and lower sides of the surface of the first protective sleeve 5 and at positions corresponding to the shell 12. A heat conduction plate 24 is embedded in the heat dissipation groove 20. The outer side of the heat conduction plate 24 is in contact with the surface of the shell 12, and the inner side of the heat conduction plate 24 is in contact with the surface of the additive spray gun body 3. The top of the first hose 4 is in contact with the bottom of the shell 12, and the top of the second hose 18 is in contact with the top of the shell 12. The heat dissipation groove 20 is provided to install the heat conduction plate 24. The heat conduction plate 24 installed in the heat dissipation groove 20 can contact the surface of the additive spray gun body 3 and absorb the heat emitted from the surface of the additive spray gun body 3. A connecting rod 21 is formed between the heat dissipation grooves 20, a positioning rod 22 is arranged on the surface of the heat conducting plate 24, a positioning hole 23 adapted to the positioning rod 22 is opened on the surface of the connecting rod 21, one end of the positioning rod 22 slides and extends into the interior of the positioning hole 23, and the positioning rod 22 and the connecting rod 21 are arranged to support and limit the heat conducting plate 24.

[0034] Specifically, an injection port and a discharge port are respectively provided on one side of the water tank 7 for injecting and discharging coolant into and out of the water tank 7. At the same time, an injection pipe is provided on the surface of the serpentine copper tube 9 and is located outside the water tank 7 and is connected to the coolant. Coolant can be injected into the serpentine copper tube 9 through the injection pipe.

[0035] By starting the pump 19, the pump 19 transports the coolant in the serpentine copper tube 9 to the interior of the shell 12 through the first hose 4. The coolant in the shell 12 absorbs the heat on the surface of the additive spray gun body 3 through the surface of the shell 12 and the heat conducting plate 24, thereby achieving the purpose of auxiliary heat dissipation of the additive spray gun body 3.

[0036] In addition, after the coolant in the shell 12 is filled, the coolant enters the interior of the serpentine copper tube 9 through the second hose 18, and then the coolant in the serpentine copper tube 9 is cooled by the coolant in the water tank 7. After cooling, the coolant can be transported to the interior of the shell 12 again through the pump 19, thereby achieving the purpose of circulating heat dissipation of the additive spray gun body 3.

[0037] Furthermore, the device mainly introduces cooling water and inert gas into the additive spray gun body 3, and then the metal powder is fed into the additive device by means of a high powder feeding airflow, and the metal powder is preheated in the arc column, in a molten or semi-molten state, and finally sprayed into the workpiece molten pool. It can withstand a maximum temperature of 1300 degrees Celsius and has been tested to have a maximum use of 5,000 times.

[0038] The connection mechanism includes a stud 14, which is installed at one end of the additive spray gun body 3 close to the second protective sleeve 6, one end of the stud 14 slides through the first protective sleeve 5 and extends to the outside of the first protective sleeve 5, and the surface of the stud 14 is threadedly connected with a screw sleeve 17, and one side of the screw sleeve 17 is in contact with the surface of the first protective sleeve 5. By providing the stud 14 and the screw sleeve 17, one end of the additive spray gun body 3 can be fixed and connected to the first protective sleeve 5.

[0039] The external thread of the first protective sleeve 5 is connected with a screw rod 15, the bottom of the screw rod 15 passes through the second protective sleeve 6 and is bolted to the surface of the first protective sleeve 5, and a limit block 16 is installed on the surface of the stud 14 and inside the first protective sleeve 5, and one side of the limit block 16 is in contact with the inner wall of the first protective sleeve 5. By providing the limit block 16, the distance that the stud 14 enters and passes through the outside of the first protective sleeve 5 can be limited, and the first protective sleeve 5 can be better limited with the screw sleeve 17.

[0040] 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 high temperature resistant additive device, comprising a base (1), characterized in that: A bracket (2) is installed on the top of the base (1), an additive spray gun body (3) is arranged on the top of the inner side of the bracket (2), a water cooling component is installed on one side of the top of the base (1), and a water return end and a water outlet end of the water cooling component are respectively connected to a first hose (4) and a second hose (18); A first protective sleeve (5) is sleeved on the surface of the additive spray gun body (3) and at one end thereof which is located away from the spraying end, and the surface of the first protective sleeve (5) is rotatably connected to the inner side of the bracket (2); One end of the additive spray gun body (3) is provided with a connection mechanism connected to the first protective sleeve (5), and the outside of the connection mechanism is sleeved with a second protective sleeve (6); A heat dissipation component is sleeved on the surface of the first protective sleeve (5) and located between the bracket (2) and the second protective sleeve (6), and the heat dissipation component is connected to the top of the first hose (4) and the second hose (18).

2. A high temperature resistant additive device according to claim 1, characterized in that: The water cooling assembly comprises a water tank (7), a counterweight block (8) is installed at the bottom of the water tank (7), and the bottom of the counterweight block (8) is connected to the top of the base (1).

3. A high temperature resistant additive device according to claim 2, characterized in that: A refrigeration unit is installed at the bottom of the water tank (7), the refrigeration end of the refrigeration unit extends to the interior of the water tank (7), a serpentine copper tube (9) is installed inside the water tank (7), a pump (19) is installed on one side of the top of the water tank (7), one end of the serpentine copper tube (9) extends to the outside of the water tank (7) and is connected to the water pumping end of the pump (19), the drainage end of the pump (19) is connected to the bottom of the first hose (4), and the other end of the serpentine copper tube (9) extends to the outside of the water tank (7) and is connected to the bottom of the second hose (18).

4. A high temperature resistant additive device according to claim 3, characterized in that: A motor (10) is installed on one side of the top of the water tank (7), and a stirring shaft (11) is installed on the output shaft of the motor (10), and the bottom of the stirring shaft (11) extends to the inside of the water tank (7).

5. A high temperature resistant additive device according to claim 4, characterized in that: The heat dissipation assembly comprises a shell (12), the shell (12) is sleeved on the outside of a first protective sleeve (5), heat dissipation grooves (20) are provided on the upper and lower sides of the surface of the first protective sleeve (5) and at positions corresponding to the shell (12), a heat conduction plate (24) is embedded in the heat dissipation groove (20), the outer side of the heat conduction plate (24) is in contact with the surface of the shell (12), the inner side of the heat conduction plate (24) is in contact with the surface of the additive spray gun body (3), the top of the first hose (4) is connected to the bottom of the shell (12), and the top of the second hose (18) is connected to the top of the shell (12).

6. A high temperature resistant additive device according to claim 5, characterized in that: The connection mechanism comprises a stud (14), wherein the stud (14) is mounted on one end of the additive spray gun body (3) close to the second protective sleeve (6), one end of the stud (14) slides through the first protective sleeve (5) and extends to the outside of the first protective sleeve (5), and a threaded sleeve (17) is threadedly connected to the surface of the stud (14), and one side of the threaded sleeve (17) is in contact with the surface of the first protective sleeve (5).

7. A high temperature resistant additive device according to claim 6, characterized in that: The external thread of the first protective sleeve (5) is connected to a screw rod (15), the bottom of the screw rod (15) passes through the second protective sleeve (6) and is bolted to the surface of the first protective sleeve (5), and a limit block (16) is installed on the surface of the stud (14) and inside the first protective sleeve (5), and one side of the limit block (16) is in contact with the inner wall of the first protective sleeve (5).

8. A high temperature resistant additive device according to claim 7, characterized in that: A connecting rod (21) is formed between the heat dissipation grooves (20), a positioning rod (22) is arranged on the surface of the heat conducting plate (24), a positioning hole (23) matched with the positioning rod (22) is opened on the surface of the connecting rod (21), and one end of the positioning rod (22) slides and extends into the interior of the positioning hole (23).

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