Uniform material spraying device for 3D printing

Abstract

The utility model relates to the field of material spraying devices, in particular to a uniform material spraying device for 3D printing. The technical problem that in the 3D printing process, when an existing material spraying device is used, the material spraying part of the whole equipment needs to be preheated, and when the room temperature is low, molten raw materials are prone to caking at a nozzle, so that the use convenience of the uniform material spraying device for 3D printing is reduced is solved. According to the technical scheme, the uniform material spraying device for 3D printing comprises a material spraying assembly, a preheating assembly and a cooling assembly, by arranging a heater and a heating pipe, the temperature of raw materials during material spraying is increased so that the raw materials can be uniformly sprayed out, and the cooling forming efficiency of the raw materials is improved through a cooler, an air pump and an airflow pipe so that the problem that in the 3D printing process, the raw materials cannot be uniformly sprayed out is solved. When an existing material spraying device is used, the material spraying part of the whole device needs to be preheated, and when the room temperature is low, molten raw materials are prone to caking at a nozzle, so that the use convenience of the uniform material spraying device for 3D printing is reduced.

Description

Technical Field

[0001] The utility model relates to the field of spraying devices, in particular to a 3D printing uniform spraying device. Background Art

[0002] The working principle of a 3D printer is to cut the digital model into thin slices, then print these slices layer by layer, stack them layer by layer, and finally form a complete solid object. The 3D printing operation is simple. You only need to send the 3D model to the printer through computer software and select the appropriate material. The printer can automatically complete the printing process. When printing, the raw material is sprayed out through the spray device, and the spray device is driven by the bracket to complete a layer. When the existing spray device is in use, it needs to be preheated for a certain period of time to heat up the device at the beginning of the spraying stage to prevent the melted raw material from cooling down and agglomerating in the tube. Utility Model Content

[0003] In order to overcome the problem that during the 3D printing process, the existing spraying device needs to preheat the spraying part of the entire equipment when in use, and when the room temperature is low, the melted raw material is easy to agglomerate at the nozzle, resulting in a decrease in the convenience of using the 3D printing uniform spraying device.

[0004] The technical scheme of the utility model is: a 3D printing uniform spraying device, comprising a spraying component, a preheating component and a cooling component; the front end of the spraying component is equipped with a preheating component; the rear end of the preheating component is equipped with a cooling component; the spraying component comprises a sprayer body, a connecting ear, a material storage tank, a material discharge nozzle and a connecting groove; the two side ends of the sprayer body are fixedly connected with connecting ears; the upper end of the sprayer body is provided with a material storage tank; the raw material is heated by the sprayer body so as to be sprayed out through the material discharge nozzle; the lower end of the sprayer body is equipped with a material discharge nozzle; the front and rear ends of the sprayer body are both provided with connecting grooves; the installation reliability of the preheating component and the cooling component is improved by the connecting groove; the preheating component comprises a first support frame, a first support rod, a first connecting hole, a heater , a first connecting block, a protective tube, a through hole and a heating tube; a first support frame is installed at the front end of the connecting groove at the front end; a first support rod is fixedly connected to the upper end of the first support frame; a first connecting hole is provided on the inner side of the first support rod; a first connecting block is fixedly connected to the rear end of the first support frame; the first connecting block and the connecting groove at the front end are arranged to be slidingly connected; the connection reliability between the preheating assembly and the sprayer body is improved by the first support rod and the first connecting block; a heater is installed on the inner side of the first support frame; a protective tube is provided at the rear end of the first support frame; a through hole is provided on the protective tube; a heating tube is installed on the inner side of the protective tube; the heating tube is heated by the heater to heat the discharge nozzle inside the through hole to improve the fluidity of the raw materials and the uniformity of the spraying.

[0005] Preferably, a spraying assembly is provided to spray the material; a preheating assembly is provided to heat the nozzle to ensure the temperature of the raw material for uniform spraying; a cooling assembly is provided to accelerate the cooling and hardening of the raw material to prevent the weight of the raw material from affecting the molding.

[0006] Preferably, the cooling assembly includes a second support frame, a second support rod, a second connecting hole, a cooler, an air pump, an air flow pipe, a screw, a nut and a second connecting block; a second support frame is installed at the rear end of the connecting groove at the rear end; a second support rod is fixedly connected to the upper end of the second support frame; a second connecting hole is provided on the second support rod; a screw is slidably connected to the inner side of the second connecting hole; a nut is gap-fitted on the screw; the screw and the first support rod are set to be slidably connected through the first connecting hole; the connection reliability between the cooling assembly and the sprayer body is improved by the second support frame, the second support rod and the second connecting block, and the integrity of the entire device is improved by the screw and the nut.

[0007] Preferably, a cooler is installed on the second support frame; an air pump is provided at the upper end of the cooler; an air flow pipe is installed at the lower end of the air pump; a second connecting block is fixedly connected to the front end of the second support frame; the connecting groove between the second connecting block and the rear end is configured as a sliding connection; air is supplied to the air flow pipe by the air pump, and the cooler is used to cool down, so as to improve the molding efficiency after the raw material is ejected.

[0008] Beneficial effects of the utility model:

[0009] 1. The material is sprayed by setting a spraying component; the nozzle is heated by setting a preheating component to ensure the temperature of the raw material for uniform spraying; the cooling component is set to accelerate the cooling and hardening of the raw material to prevent the weight of the raw material from affecting the molding, so as to solve the problem that in the process of 3D printing, the existing spraying device needs to preheat the spraying part of the entire device when in use, and when the room temperature is low, the melted raw material is easy to agglomerate at the nozzle, resulting in a decrease in the convenience of using the 3D printing uniform spraying device, thereby improving the convenience of using the entire 3D printing uniform spraying device;

[0010] 2. The raw material is heated by the main body of the sprayer so as to be sprayed out through the discharge nozzle, and the heating tube is heated by the heater to heat the discharge nozzle inside the through hole, thereby improving the fluidity of the raw material and the uniformity of the spraying, thereby improving the convenience of use of the entire 3D printing uniform spraying device to a certain extent;

[0011] 3. Start the air pump to supply air to the air flow pipe, and use the cooler to cool the gas inside the air flow pipe. When the melted 3D printing material is ejected from the discharge nozzle and falls on the receiving plate, the cold air is ejected through the air flow pipe to accelerate the molding efficiency of the melted 3D printing material, thereby improving the working efficiency of the entire 3D printing uniform spraying device. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 What is shown is a three-dimensional structural schematic diagram of a 3D printing uniform spraying device of the utility model;

[0013] Figure 2 What is shown is a three-dimensional structural schematic diagram of a spraying component of a 3D printing uniform spraying device of the utility model;

[0014] Figure 3 What is shown is a first stereoscopic structural schematic diagram of a partial cross-section of a preheating component of a 3D printing uniform spraying device of the present utility model;

[0015] Figure 4 The second stereoscopic structure schematic diagram of the partial cross-section of the preheating component of the 3D printing uniform spraying device of the utility model is shown;

[0016] Figure 5 What is shown is a first three-dimensional structural schematic diagram of a cooling assembly of a 3D printing uniform spraying device of the utility model;

[0017] Figure 6 What is shown is a second three-dimensional structural schematic diagram of the cooling component of the 3D printing uniform spraying device of the present invention.

[0018] Explanation of the accompanying drawings: 1. spray assembly; 2. preheating assembly; 3. cooling assembly; 101. sprayer body; 102. connecting ear; 103. storage tank; 104. discharge nozzle; 105. connecting groove; 201. first support frame; 202. first support rod; 203. first connecting hole; 204. heater; 205. first connecting block; 206. protective tube; 207. through hole; 208. heating tube; 301. second support frame; 302. second support rod; 303. second connecting hole; 304. cooler; 305. air pump; 306. air flow tube; 307. screw; 308. nut; 309. second connecting block. DETAILED DESCRIPTION

[0019] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0020] See also Figure 1-5The utility model provides an embodiment: a 3D printing uniform spraying device, comprising a spraying component 1, a preheating component 2 and a cooling component 3; the front end of the spraying component 1 is equipped with the preheating component 2; the rear end of the cooling component 3 is equipped with the cooling component 3; the spraying component 1 comprises a sprayer body 101, a connecting ear 102, a material storage tank 103, a discharge nozzle 104 and a connecting groove 105; the ends of both sides of the sprayer body 101 are fixedly connected with the connecting ears 102; the upper end of the sprayer body 101 A material storage tank 103 is provided at the front end; a discharge nozzle 104 is installed at the lower end of the sprayer body 101; a connection groove 105 is provided at the front and rear ends of the sprayer body 101; the preheating assembly 2 includes a first support frame 201, a first support rod 202, a first connection hole 203, a heater 204, a first connection block 205, a protection tube 206, a through hole 207 and a heating tube 208; the first support frame 201 is installed at the front end of the connection groove 105; the first support frame 201 is provided at the front end; A first support rod 202 is fixedly connected to the end; a first connecting hole 203 is opened on the inner side of the first support rod 202; a first connecting block 205 is fixedly connected to the rear end of the first support frame 201; the first connecting block 205 and the connecting groove 105 of the front end are set to be slidingly connected; a heater 204 is installed on the inner side of the first support frame 201; a protective tube 206 is set at the rear end of the first support frame 201; a through hole 207 is opened on the protective tube 206; a heating tube 208 is installed on the inner side of the protective tube 206; the raw material is heated by the sprayer body 101 so as to be sprayed out through the discharge nozzle 104; the installation reliability of the preheating component 2 and the cooling component 3 is improved by the connecting groove 105; the connection reliability between the preheating component 2 and the sprayer body 101 is improved by the first support rod 202 and the first connecting block 205; the heating tube 208 is heated by the heater 204 to heat the discharge nozzle 104 inside the through hole 207 to improve the fluidity of the raw material and improve the uniformity of the spraying.

[0021] See also Figure 5-6In this embodiment, the cooling assembly 3 includes a second support frame 301, a second support rod 302, a second connecting hole 303, a cooler 304, an air pump 305, an air flow tube 306, a screw 307, a nut 308 and a second connecting block 309; the second support frame 301 is installed at the rear end of the connecting groove 105 at the rear end; the second support frame 301 is fixedly connected to the second support rod 302 at the upper end; the second support rod 302 is provided with a second connecting hole 303; the inner side of the second connecting hole 303 is slidably connected with a screw 307; the screw 307 is gap-fitted with a nut 308; the screw 307 is set to be slidably connected with the first support rod 202 through the first connecting hole 203; the second A cooler 304 is installed on the second support frame 301; an air pump 305 is provided at the upper end of the cooler 304; an air flow pipe 306 is installed at the lower end of the air pump 305; a second connecting block 309 is fixedly connected to the front end of the second support frame 301; the second connecting block 309 and the connecting groove 105 at the rear end are set to be slidingly connected; the connection reliability between the cooling assembly 3 and the sprayer body 101 is improved by the second support frame 301, the second support rod 302 and the second connecting block 309, and the integrity of the entire device is improved by the screw 307 and the nut 308; the air supply to the air flow pipe 306 is carried out by the air pump 305, and the cooler 304 is used to cool down, so as to improve the molding efficiency after the raw material is sprayed out.

[0022] During installation, the preheating assembly 2 is installed on the sprayer body 101 through the first support rod 202 and the first connecting block 205, and the cooling assembly 3 is installed on the sprayer body 101 through the second support frame 301, the second support rod 302 and the second connecting block 309. The connection reliability between the preheating assembly 2 and the cooling assembly 3 is enhanced by the screw 307 and the nut 308, and finally the device is installed on the 3D printer through the connecting ear 102;

[0023] When in use, raw materials are added to the storage tank 103, and the raw materials are heated by the sprayer body 101 to facilitate spraying through the discharge nozzle 104. The raw materials are heated by the sprayer body 101 to facilitate spraying through the discharge nozzle 104, and the heating tube 208 is heated by the heater 204 to heat the discharge nozzle 104 inside the through hole 207. When the melted 3D printing raw materials are sprayed out from the discharge nozzle 104 and fall on the receiving plate, the air pump 305 is started to supply air to the airflow tube 306, and the cooler 304 is used to cool the gas inside the airflow tube 306.

[0024] Through the above steps, the sprayer body 101 and the discharge nozzle 104 are set to spray materials; the discharge nozzle 104 is heated by setting the heater 204 and the heating tube 208 to ensure the temperature of the raw material for uniform spraying; the cooler 304, the air pump 305 and the air flow tube 306 are set to accelerate the cooling and hardening of the raw material to prevent the weight of the raw material from affecting the molding, so as to solve the problem that in the process of 3D printing, the spraying part of the entire equipment needs to be preheated when the existing spraying device is used, and when the room temperature is low, the melted raw material is easy to agglomerate at the nozzle, resulting in a decrease in the convenience of using the 3D printing uniform spraying device, thereby improving the convenience of using the entire 3D printing uniform spraying device.

[0025] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. A 3D printing uniform spraying device, comprising a spraying assembly (1); characterized in that: The invention also comprises a preheating component (2) and a cooling component (3); the preheating component (2) is installed at the front end of the spraying component (1); the cooling component (3) is installed at the rear end of the preheating component (2); the spraying component (1) comprises a sprayer body (101), a connecting ear (102), a material storage tank (103), a discharge nozzle (104) and a connection groove (105); the two side ends of the sprayer body (101) are fixedly connected with the connecting ears (102); the upper end of the sprayer body (101) is provided with a material storage tank (103); the lower end of the sprayer body (101) is provided with a discharge nozzle (104); the front and rear ends of the sprayer body (101) are provided with a connection groove (105); the preheating component (2) comprises a first support frame (201), a first support rod (202), a first connection hole (203), a heater (20 4), a first connecting block (205), a protective tube (206), a through hole (207) and a heating tube (208); a first support frame (201) is installed at the front end of the connecting groove (105) at the front end; a first support rod (202) is fixedly connected to the upper end of the first support frame (201); a first connecting hole (203) is provided on the inner side of the first support rod (202); a first connecting block (205) is fixedly connected to the rear end of the first support frame (201); the first connecting block (205) and the connecting groove (105) at the front end are arranged to be slidably connected; a heater (204) is installed on the inner side of the first support frame (201); a protective tube (206) is provided at the rear end of the first support frame (201); a through hole (207) is provided on the protective tube (206); and a heating tube (208) is installed on the inner side of the protective tube (206).

2. A 3D printing uniform spraying device according to claim 1, characterized in that: The cooling assembly (3) comprises a second support frame (301), a second support rod (302), a second connecting hole (303), a cooler (304), an air pump (305), an air flow tube (306), a screw (307), a nut (308) and a second connecting block (309); the second support frame (301) is installed at the rear end of the connecting groove (105) at the rear end; the second support rod (302) is fixedly connected to the upper end of the second support frame (301); the second support rod (302) is provided with a second connecting hole (303); the inner side of the second connecting hole (303) is slidably connected with a screw (307); a nut (308) is loosely fitted on the screw (307); the screw (307) and the first support rod (202) are arranged to be slidably connected through the first connecting hole (203).

3. A 3D printing uniform spraying device according to claim 2, characterized in that: A cooler (304) is installed on the second support frame (301); an air pump (305) is arranged at the upper end of the cooler (304); an air flow pipe (306) is installed at the lower end of the air pump (305); a second connecting block (309) is fixedly connected to the front end of the second support frame (301); and the second connecting block (309) and the connecting groove (105) at the rear end are arranged to be slidably connected.

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