Polyurethane injection device

Abstract

The utility model relates to the field of injection material device discloses a polyurethane injection material device, including the bottom plate, one side of bottom plate upper surface is provided with the lifting mechanism, the lifting mechanism includes the support frame fixedly connected in bottom plate upper surface one side, the upper surface fixedly connected with support frame of support frame, one side swing connection has the rotating shaft in support frame inner wall, the outer wall fixedly connected with rotating frame of rotating shaft. In the utility model, install hydraulic oil cylinder on one side of platform, make polyurethane pipe end lift to whole pipe material and plane included angle, punch on one side flange upper end, inject polyurethane in flange hole. Use the nozzle and machine own pressure to spray the raw material to the pipe material middle nearby, to both sides simultaneously, drop hydraulic oil cylinder after the completion of polyurethane injection, lay the pipe material, wait for the polyurethane to start, change injection material mode completely avoid the damage of polyethylene outer protection, the appearance and the risk of column pipe have been improved simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of injection devices, and more particularly to a polyurethane injection device. Background Technology

[0002] Polyurethane injection equipment is a specialized device for metering, mixing, and injecting two-component polyurethane materials. It is widely used in on-site foaming insulation, sealing, and filling operations in industries such as automobiles, home appliances, and construction. It features high efficiency, stability, and a high degree of automation.

[0003] Traditional injection molding devices involve placing the pipe with the outer protective tube inserted flat on a foaming platform, drilling a hole in the middle of the outer protective tube, and then pouring polyurethane foam to fill the intermediate layer. This method of drilling holes in the outer protective tube damages its performance, impairing its overall tensile properties and increasing the risk of pipe cracking. Furthermore, traditional polyurethane injection molding devices generally have low material mixing efficiency and the material tends to adhere to the inner wall of the tank, affecting equipment maintenance and cleaning efficiency.

[0004] Therefore, those skilled in the art have provided a polyurethane injection device to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a polyurethane injection device. A hydraulic cylinder is installed on one side of the platform, raising the polyurethane tube end to an angle of ° between the entire tube and the plane. A hole is drilled at the upper end of a flange on one side, and polyurethane is injected into the flange hole. The material is sprayed near the middle of the tube using a nozzle and the machine's own pressure, simultaneously expanding to both sides. After the polyurethane injection is complete, the hydraulic cylinder is lowered, and the tube is laid flat, awaiting the expansion of the polyurethane. This change in injection method completely avoids damage to the polyethylene outer sheath, improving both the appearance and the risk to the tube structure.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A polyurethane injection device includes a base plate, a lifting mechanism disposed on one side of the upper surface of the base plate, the lifting mechanism including a support frame fixedly connected to one side of the upper surface of the base plate, a frame fixedly connected to the upper surface of the support frame, a rotating shaft rotatably connected to one side of the inner wall of the frame, a rotating frame fixedly connected to the outer wall of the rotating shaft, a first rotating seat fixedly connected to the middle of the upper surface of the base plate, a hydraulic cylinder rotatably connected inside the first rotating seat, a second rotating seat rotatably connected to the output end of the hydraulic cylinder, a support plate fixedly connected to the upper surface of the second rotating seat, a first electric push rod fixedly connected to the inner wall of the support plate, and a clamping plate fixedly connected to the output end of the first electric push rod. A material injection mechanism is provided on the upper surface of the base plate away from the support frame. The material injection mechanism includes multiple pillars fixedly connected to the upper surface of the base plate away from the support frame. An agitator is fixedly connected to the upper surface of the pillars. A motor is fixedly connected to the front end of the lower surface of the agitator. A first bevel gear is fixedly connected to the output end of the motor. A second bevel gear and a third bevel gear are rotatably connected to the outer wall of the first bevel gear. A first agitator shaft is fixedly connected to the upper surface of the second bevel gear. Multiple first agitators are fixedly connected to the outer wall of the first agitator shaft. A scraper is fixedly connected to the upper surface of the first agitator shaft. A scraper plate is fixedly connected to the outer wall of the scraper away from the first agitator shaft. A second agitator shaft is fixedly connected to the upper surface of the third bevel gear. A screw conveyor blade is fixedly connected to the outer wall of the second agitator shaft. A discharge pipe is fixedly connected to the lower end of the front outer wall of the agitator. A second electric push rod is fixedly connected to the middle of the front outer wall of the discharge pipe. A push plate is fixedly connected to the output end of the second electric push rod. Multiple nozzles are fixedly connected to the front outer wall of the push plate. The above technical solution involves installing a hydraulic cylinder on one side of the platform to raise the polyurethane pipe end to an angle of ° between the entire pipe and the plane. A hole is drilled at the upper end of one flange, and polyurethane is injected into the flange hole. The raw material is sprayed near the middle of the pipe using a nozzle and the machine's own pressure, while simultaneously expanding to both sides. After the polyurethane injection is complete, the hydraulic cylinder is lowered, and the pipe is laid flat to allow the polyurethane to expand. This change in injection method completely avoids damage to the polyethylene outer sheath, improving both the appearance and the risks associated with the pipe assembly.

[0007] Furthermore, multiple corrugated pipes are fixedly connected to the edge of the outer wall at the front end of the discharge pipe, and the corrugated pipes are fixedly connected to the nozzle. Through the above technical solution, the motor can drive the first bevel gear to reverse the second and third bevel gears. This mechanism can cause the first stirring shaft and the auger blades to stir in opposite directions, which can effectively improve the stirring efficiency of the equipment. In addition, the scraper can prevent materials from adhering to the inner wall of the stirring tank, which can improve the maintenance and cleaning efficiency of the staff and effectively improve the working efficiency of the equipment.

[0008] Furthermore, the second bevel gear meshes with the first bevel gear, and the third bevel gear meshes with the first bevel gear; The above technical solutions can improve the mixing efficiency of the equipment through meshing.

[0009] Furthermore, a housing is fixedly connected to the lower surface of the agitator, and the motor is disposed inside the housing; The above technical solution provides protection for the motor through the outer casing.

[0010] Furthermore, the first stirring shaft is rotatably connected to the second stirring shaft, and the scraper is in close contact with the inner wall of the stirring tank; The above technical solution prevents materials from sticking together by ensuring that the scraper is in close contact with the inner wall of the agitator.

[0011] Furthermore, a support base is fixedly connected to the front end of the upper surface of the frame, and a polyurethane tube is provided on the upper surface of the support base; The above technical solution provides cushioning for the polyurethane tube through the support base.

[0012] Furthermore, the front and rear ends of the clamp plate away from the outer wall of the polyurethane tube are fixedly connected to limit posts, and the limit posts penetrate the support plate. The above technical solution allows for limiting the position using a limiting post.

[0013] Furthermore, a top plate is fixedly connected to the upper surface of the agitator, a first feed pipe is fixedly connected to the front end of the upper surface of the top plate, a second feed pipe is fixedly connected to one side of the upper surface of the top plate, a third feed pipe is fixedly connected to the rear end of the upper surface of the top plate, and a housing is fixedly connected to one side of the upper surface of the bottom plate. The above technical solution allows for complete control of the equipment's operation via the chassis.

[0014] This utility model has the following beneficial effects: 1. This utility model proposes a polyurethane injection device. A hydraulic cylinder is installed on one side of the platform, raising the polyurethane pipe end to an angle of ° between the entire pipe and the plane. A hole is drilled at the upper end of a flange on one side, and polyurethane is injected into the flange hole. The raw material is sprayed near the middle of the pipe using a nozzle and the machine's own pressure, while simultaneously expanding to both sides. After the polyurethane injection is completed, the hydraulic cylinder is lowered, and the pipe is laid flat, waiting for the polyurethane to expand. This change in injection method completely avoids damage to the polyethylene outer sheath, and the appearance and risks to the pipe are improved simultaneously.

[0015] 2. The polyurethane injection device proposed in this utility model can drive the first bevel gear to reverse the second and third bevel gears through the motor. This mechanism can make the first stirring shaft and the auger blades stir in opposite directions, which can effectively improve the stirring efficiency of the equipment. In addition, the scraper can prevent the material from adhering to the inner wall of the stirring tank, which can improve the maintenance and cleaning efficiency of the staff and effectively improve the working efficiency of the equipment. Attached Figure Description

[0016] Figure 1 This is an isometric view of a polyurethane injection device proposed in this utility model; Figure 2 This is a schematic diagram of the structure of a polyurethane injection device proposed in this utility model; Figure 3 This is a side view of the lifting mechanism in a polyurethane injection device proposed in this utility model; Figure 4 This is a side view of the injection mechanism in a polyurethane injection device proposed in this utility model; Figure 5 This is a schematic diagram of the lifting mechanism in a polyurethane injection device proposed in this utility model; Figure 6 This is a schematic diagram of the injection mechanism in a polyurethane injection device proposed in this utility model.

[0017] Legend: 1. Base plate; 2. Lifting mechanism; 201. Support frame; 202. Rotating shaft; 203. Rotating frame; 204. Frame; 205. Polyurethane pipe; 206. First electric push rod; 207. Support plate; 208. Clamping plate; 209. Limiting post; 2010. Hydraulic cylinder; 2011. First rotating seat; 2012. Second rotating seat; 2013. Support seat; 3. Injection mechanism; 301. Support column; 302. Housing; 303. Nozzle; 304. Second electric push rod; 305. Push plate; 306. Bellows; 307. Discharge pipe; 308. Top plate; 309. Agitator; 3010. Motor; 3011. First bevel gear; 3012. Second bevel gear; 3013. Third bevel gear; 3014. Scraper; 3015. Scraper frame; 3016. First agitator shaft; 3017. First agitator frame; 3018. Second agitator shaft; 3019. Screwdriver blades; 4. Chassis; 5. First feed pipe; 6. Second feed pipe; 7. Third feed pipe. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] One embodiment of this utility model is provided: Reference Figure 2 , Figure 5 and Figure 6A polyurethane injection device includes a base plate 1. A lifting mechanism 2 is provided on one side of the upper surface of the base plate 1. The lifting mechanism 2 includes a support frame 201 fixedly connected to one side of the upper surface of the base plate 1. A frame 204 is fixedly connected to the upper surface of the support frame 201. A rotating shaft 202 is rotatably connected to one side of the inner wall of the frame 204. A rotating frame 203 is fixedly connected to the outer wall of the rotating shaft 202. A first rotating seat 2011 is fixedly connected to the middle of the upper surface of the base plate 1. A hydraulic cylinder 2010 is rotatably connected inside the first rotating seat 2011. A second rotating seat 2012 is rotatably connected to the output end of the hydraulic cylinder 2010. A support plate 207 is fixedly connected to the upper surface of the second rotating seat 2012. A first electric push rod 206 is fixedly connected to the inner wall of the support plate 207. A clamping plate 208 is fixedly connected to the output end of the first electric push rod 206. A material injection mechanism 3 is provided on the side of the upper surface of the base plate 1 away from the support frame 201. The material injection mechanism 3 includes multiple support columns 301 fixedly connected to the side of the upper surface of the base plate 1 away from the support frame 201. An agitator 309 is fixedly connected to the upper surface of the support column 301. A motor 3010 is fixedly connected to the front end of the lower surface of the agitator 309. A first bevel gear 3011 is fixedly connected to the output end of the motor 3010. A second bevel gear 3012 and a third bevel gear 3013 are rotatably connected to the outer wall of the first bevel gear 3011. A first agitator shaft 3016 is fixedly connected to the upper surface of the second bevel gear 3012. Multiple first agitator shafts 3016 are fixedly connected to the outer wall of the first agitator shaft 3016. The agitator 3017 has a scraper 3015 fixedly connected to the upper surface of the first agitator 3016, a scraper 3014 fixedly connected to the outer wall of the scraper 3015 away from the first agitator 3016, a second agitator 3018 fixedly connected to the upper surface of the third bevel gear 3013, an auger blade 3019 fixedly connected to the outer wall of the second agitator 3018, a discharge pipe 307 fixedly connected to the lower end of the front outer wall of the agitator 309, a second electric push rod 304 fixedly connected to the middle of the front outer wall of the discharge pipe 307, a push plate 305 fixedly connected to the output end of the second electric push rod 304, and multiple nozzles 303 fixedly connected to the front outer wall of the push plate 305. A hydraulic cylinder 2010 is installed on one side of the platform, raising the polyurethane tube 205 to a 30° angle between the entire tube and the plane. A hole is drilled at the upper end of one flange, and polyurethane is injected into the flange hole. The material is sprayed near the middle of the tube using the nozzle 303 and the machine's own pressure, while simultaneously expanding to both sides. After the polyurethane injection is complete, the hydraulic cylinder 2010 is lowered, and the tube is laid flat, waiting for the polyurethane to expand. By changing the injection method, damage to the polyethylene outer sheath is completely avoided, and the appearance and risks to the tube are improved simultaneously.

[0020] Reference Figure 4 , Figure 5 and Figure 6Multiple corrugated pipes 306 are fixedly connected to the edge of the outer wall at the front end of the discharge pipe 307. The corrugated pipes 306 are fixedly connected to the nozzle 303. The motor 3010 can drive the first bevel gear 3011 to drive the second bevel gear 3012 and the third bevel gear 3013 to reverse. This mechanism can cause the first stirring shaft 3016 and the auger blades 3019 to stir in opposite directions, which can effectively improve the stirring efficiency of the equipment. In addition, the scraper 3014 can prevent materials from adhering to the inner wall of the stirring tank 309, which can improve the maintenance and cleaning efficiency of the staff and effectively improve the operation of the equipment. For efficiency, the second bevel gear 3012 meshes with the first bevel gear 3011, and the third bevel gear 3013 meshes with the first bevel gear 3011. This meshing improves the stirring efficiency of the equipment. A housing 302 is fixedly connected to the lower surface of the stirring tank 309. The motor 3010 is located inside the housing 302, which provides protection for the motor 3010. The first stirring shaft 3016 is rotatably connected to the second stirring shaft 3018. The scraper 3014 is tightly fitted to the inner wall of the stirring tank 309, which prevents materials from sticking together.

[0021] Reference Figure 1 , Figure 2 and Figure 3 A support base 2013 is fixedly connected to the front end of the upper surface of the frame 204. A polyurethane tube 205 is provided on the upper surface of the support base 2013. The support base 2013 can provide buffer for the polyurethane tube 205. The front end and rear end of the outer wall of the clamping plate 208 away from the polyurethane tube 205 are fixedly connected to limit posts 209. The limit posts 209 penetrate the support plate 207 and can limit movement. A top plate 308 is fixedly connected to the upper surface of the stirring tank 309. A first feed pipe 5 is fixedly connected to the front end of the upper surface of the top plate 308. A second feed pipe 6 is fixedly connected to one side of the upper surface of the top plate 308. A third feed pipe 7 is fixedly connected to the rear end of the upper surface of the top plate 308. A housing 4 is fixedly connected to one side of the upper surface of the bottom plate 1. The complete operation of the equipment can be controlled through the housing 4.

[0022] Working principle: When the equipment is needed, the material is first injected into the stirring tank 309 through the first feed pipe 5, the second feed pipe 6, and the third feed pipe 7. At the same time, the motor 3010 is started, which drives the first bevel gear 3011 to rotate. When the motor 3010 rotates, it drives the third bevel gear 3013 and the second bevel gear 3012 to rotate in reverse. At this time, the third bevel gear 3013 drives the auger blades 3019 and the second stirring shaft 3018 to rotate, turning the material upward. Meanwhile, the second bevel gear 3012 drives the first stirring shaft 3016 and the first stirring frame 3017 to rotate and stir, which, together with the scraper 3014 on the scraper frame 3015, stirs the material internally. The wall is continuously scraped, and then the first electric push rod 206 is activated to drive the clamping plate 208 to clamp the polyurethane tube 205. Then the hydraulic cylinder 2010 is activated, and the hydraulic cylinder 2010 pushes the support plate 207 and the polyurethane tube 205 to move. With the help of the rotating frame 203, the polyurethane tube 205 can be raised by 30°. Then the second electric push rod 304 is activated, and the second electric push rod 304 pushes the push plate 305 and the nozzle 303 to move. The nozzle 303 is aligned with the hole on the flange. Then the material in the stirring tank 309 is injected into the polyurethane tube 205. Then the second electric push rod 304 is activated to retract, and then the hydraulic cylinder 2010 flattens the polyurethane tube 205.

[0023] The following points should be noted in this article: 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in general design.

[0024] 2. Where there is no conflict, the embodiments of this disclosure and the features thereof can be combined with each other to obtain new embodiments. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. The specific meaning of the above terms in this utility model shall be understood by those skilled in the art based on the specific circumstances. In addition, unless otherwise stated, "multiple" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and should not be construed as a limitation on this utility model; the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing specific embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A polyurethane injection device, comprising a base plate (1), characterized in that: A lifting mechanism (2) is provided on one side of the upper surface of the base plate (1). The lifting mechanism (2) includes a support frame (201) fixedly connected to one side of the upper surface of the base plate (1). A frame (204) is fixedly connected to the upper surface of the support frame (201). A rotating shaft (202) is rotatably connected to one side of the inner wall of the frame (204). A rotating frame (203) is fixedly connected to the outer wall of the rotating shaft (202). A first rotating seat (2011) is fixedly connected to the middle of the upper surface of the base plate (1). A hydraulic cylinder (2010) is rotatably connected inside the first rotating seat (2011). A second rotating seat (2012) is rotatably connected to the output end of the hydraulic cylinder (2010). A support plate (207) is fixedly connected to the upper surface of the second rotating seat (2012). A first electric push rod (206) is fixedly connected to the inner wall of the support plate (207). A clamping plate (208) is fixedly connected to the output end of the first electric push rod (206). A material injection mechanism (3) is provided on the side of the upper surface of the base plate (1) away from the support frame (201). The material injection mechanism (3) includes multiple support columns (301) fixedly connected to the side of the upper surface of the base plate (1) away from the support frame (201). An agitator (309) is fixedly connected to the upper surface of the support column (301). A motor (3010) is fixedly connected to the front end of the lower surface of the agitator (309). A first bevel gear (3011) is fixedly connected to the output end of the motor (3010). A second bevel gear (3012) and a third bevel gear (3013) are rotatably connected to the outer wall of the first bevel gear (3011). A first agitator shaft (3016) is fixedly connected to the upper surface of the second bevel gear (3012). Multiple third agitator shafts (3016) are fixedly connected to the outer wall of the first agitator shaft (3016). A stirring frame (3017) is provided. A scraper (3015) is fixedly connected to the upper surface of the first stirring shaft (3016). A scraper (3014) is fixedly connected to the outer wall of the scraper (3015) away from the first stirring shaft (3016). A second stirring shaft (3018) is fixedly connected to the upper surface of the third bevel gear (3013). An auger blade (3019) is fixedly connected to the outer wall of the second stirring shaft (3018). A discharge pipe (307) is fixedly connected to the lower end of the front outer wall of the stirring tank (309). A second electric push rod (304) is fixedly connected to the middle of the front outer wall of the discharge pipe (307). A push plate (305) is fixedly connected to the output end of the second electric push rod (304). A plurality of nozzles (303) are fixedly connected to the front outer wall of the push plate (305).

2. The polyurethane injection device according to claim 1, characterized in that: Multiple corrugated pipes (306) are fixedly connected to the edge of the outer wall of the front end of the discharge pipe (307), and the corrugated pipes (306) are fixedly connected to the nozzle (303).

3. The polyurethane injection device according to claim 1, characterized in that: The second bevel gear (3012) meshes with the first bevel gear (3011), and the third bevel gear (3013) meshes with the first bevel gear (3011).

4. The polyurethane injection device according to claim 1, characterized in that: The lower surface of the stirring tank (309) is fixedly connected to the outer shell (302), and the motor (3010) is located inside the outer shell (302).

5. A polyurethane injection device according to claim 1, characterized in that: The first stirring shaft (3016) is rotatably connected to the second stirring shaft (3018), and the scraper (3014) is tightly fitted to the inner wall of the stirring tank (309).

6. A polyurethane injection device according to claim 1, characterized in that: A support base (2013) is fixedly connected to the front end of the upper surface of the frame (204), and a polyurethane tube (205) is provided on the upper surface of the support base (2013).

7. A polyurethane injection device according to claim 1, characterized in that: The front and rear ends of the outer wall of the clamp (208) away from the polyurethane tube (205) are fixedly connected to limit posts (209), and the limit posts (209) penetrate the support plate (207).

8. A polyurethane injection device according to claim 1, characterized in that: The upper surface of the agitator (309) is fixedly connected to a top plate (308), the front end of the upper surface of the top plate (308) is fixedly connected to a first feed pipe (5), one side of the upper surface of the top plate (308) is fixedly connected to a second feed pipe (6), the rear end of the upper surface of the top plate (308) is fixedly connected to a third feed pipe (7), and one side of the upper surface of the bottom plate (1) is fixedly connected to a housing (4).

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