Polyurethane polyurea spray machine

Abstract

The utility model relates to a spraying machine technical field, concretely is a kind of polyurethane polyurea spraying machine, including base, plunger booster pump, heater, the top of base is fixedly connected with bottom cover, and the inside of bottom cover is provided with transformer and solid-state relay;The top of base is fixedly connected with main support frame, and the front side of main support frame is fixedly connected with two plunger booster pumps and the booster pump power device that provides power for two plunger booster pumps;Plunger booster pump and booster pump power device are located above bottom cover;The top of main support frame is connected with controller;The rear side of bottom cover is fixedly connected with heater, and heater is provided with material one heating channel and material two heating channel in;The top of bottom cover is fixedly connected with material block, and material block is equipped with material one switching channel and material two switching channel;The utility model is rich in function, and layout is reasonable.

Description

Technical Field

[0001] This utility model relates to the field of spraying machine technology, specifically a polyurethane polyurea spraying machine. Background Technology

[0002] Both polyurethane and polyurea are composed of two liquid chemical raw materials. When polyurethane or polyurea is sprayed, the two liquid chemical raw materials need to be pressurized and heated in a polyurethane / polyurea spraying machine before entering the spray gun for mixing and reaction before spraying. The polyurethane / polyurea spraying machine needs to achieve the required functions while ensuring that the whole is relatively compact and that the components do not interfere with each other. Existing polyurethane / polyurea spraying machines have relatively simple functions and unreasonable layout. Utility Model Content

[0003] The main objective of this invention is to provide a polyurethane polyurea spraying machine to solve the problems of the limited functionality and unreasonable layout of the existing polyurethane polyurea spraying machines.

[0004] To achieve the above objectives, this utility model provides a polyurethane / polyurea spraying machine, including a base, a plunger booster pump, and a heater. A bottom cover is fixedly connected to the top of the base, and a transformer and a solid-state relay are installed inside the bottom cover. A main support frame is fixedly connected to the top of the base, and two plunger booster pumps and a booster pump power unit that provides power to the two plunger booster pumps are fixedly connected to the front side of the main support frame. The plunger booster pumps and the booster pump power unit are located above the bottom cover. A controller is connected to the top of the main support frame. A heater is fixedly connected to the rear side of the bottom cover, and a material heating channel 1 and a material heating channel 2 are provided inside the heater. A material block is fixedly connected to the top of the bottom cover, and a material transfer channel 1 and a material transfer channel 2 are provided inside the material block. The outlet of the material heating channel 1 is connected to the material transfer channel 1 through a pipe, and the inlet is connected to one of the plunger booster pumps through a pipe. The outlet of the material heating channel 2 is connected to the material transfer channel 2 through a pipe, and the inlet is connected to the other plunger booster pump.

[0005] Furthermore, the booster pump power unit is a double-headed cylinder, and the piston rod of the double-headed cylinder is connected to the pistons of the two plunger booster pumps at both ends.

[0006] Furthermore, the top of the main support frame is provided with a rearward protruding plate, and the bottom of the controller is fixedly connected to a connecting plate; the protruding plate and the connecting plate are hinged by a hinge shaft; the protruding plate and the connecting plate are locked by a locking pin.

[0007] Furthermore, the plunger booster pump includes a pump body, which has a cavity and an inlet and an outlet communicating with the cavity. A suction valve is connected to the inlet, and a discharge valve is connected to the outlet. A plunger is movably connected inside the cavity, and an inlet pipe is connected to the inlet, and an outlet pipe is connected to the outlet.

[0008] Furthermore, pressure gauges are fixedly connected to the material block to detect the material pressure in the first and second material transfer channels; connectors are connected to the front ends of the first and second material transfer channels.

[0009] This invention achieves pressurization and heating of materials by setting up a booster pump and a heater; it achieves material pipeline transfer and conversion by setting up material blocks; and it achieves centralized control of the equipment by setting up a controller, which is located on the top for easy operation.

[0010] This invention, by setting up a double-headed cylinder, can use one power unit to drive two booster pumps, resulting in higher integration and a more compact design; by setting up a connecting plate, hinge shaft, and pin, the controller can be flipped back 180° when not in use or during transportation, further saving space.

[0011] This invention provides a matching heating power supply to the heater by setting up a transformer; and it also provides circuit control and protection functions by setting up a solid-state relay. Attached Figure Description

[0012] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention.

[0013] Figure 1 This is a three-dimensional structural diagram of the polyurethane / polyurea spraying machine in the embodiment;

[0014] Figure 2 This is a schematic diagram of the left side of the polyurethane / polyurea spraying machine in the embodiment;

[0015] Figure 3 This is a rear view schematic diagram of the polyurethane polyurea spraying machine in the embodiment;

[0016] Figure 4 This is a schematic diagram of the structure of the plunger booster pump and transformer in the embodiment;

[0017] Figure 5 This is a schematic diagram of the structure at the connecting plate in the embodiment;

[0018] Figure 6 This is a cross-sectional schematic diagram of the plunger booster pump and the double-headed cylinder in the embodiment;

[0019] Figure 7 This is a schematic diagram of the structure at the material transfer channel 1 and material transfer channel 2 in the embodiment;

[0020] In the diagram: 1. Base; 2. Plunger booster pump; 201. Pump body; 202. Chamber; 203. Suction valve; 204. Discharge valve; 205. Inlet pipe; 206. Outlet pipe; 207. Inlet; 208. Outlet; 209. Plunger; 3. Bottom cover; 4. Transformer; 5. Main support frame; 501. Protruding plate; 6. Connecting plate; 7. Heater; 8. Material block; 801. Material transfer channel 1; 802. Material transfer channel 2; 9. Controller; 10. Double-headed cylinder; 11. Hinge shaft; 12. Locking pin; 13. Pressure gauge; 14. Connector; 15. Solid-state relay. Detailed Implementation

[0021] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0022] like Figures 1 to 4 , Figure 7 As shown, according to an embodiment of this utility model, a polyurethane / polyurea spraying machine is provided, including a base 1, a plunger booster pump 2, and a heater 7. The base 1 has casters at its bottom and a bottom cover 3 fixedly connected to its top. A transformer 4 and a solid-state relay 15 are housed inside the bottom cover 3. A main support frame 5 is fixedly connected to the middle of the top of the base 1. Two plunger booster pumps 2 and a booster pump power unit that provides power to the two plunger booster pumps 2 are fixedly connected to the middle of the front side of the main support frame 5. The plunger booster pumps 2 and the booster pump power unit are located above the bottom cover 3. The top of the main support frame 5... The bottom cover 3 is connected to a controller 9; a heater 7 is fixedly connected to the rear side of the bottom cover 3, and the heater 7 is provided with two separate material heating channels, Material 1 and Material 2; a material block 8 is fixedly connected to the top of the bottom cover 3, and the material block 8 is provided with two separate material transfer channels, Material 1 and Material 2; the outlet of the Material 1 heating channel is connected to the Material 1 transfer channel 801 through a pipe, and the inlet is connected to one of the plunger booster pumps 2 through a pipe; the outlet of the Material 2 heating channel is connected to the Material 2 transfer channel 802 through a pipe, and the inlet is connected to another plunger booster pump 2.

[0023] The transformer provides a matching heating power supply for heater 7; the electrothermal effect allows the constant-temperature heat generated in the pipes of heater 7 to be transferred to the liquid raw materials inside the pipes; the reaction effect of the constant-temperature heated raw materials can better meet the relevant technical parameter requirements.

[0024] Solid-state relays are used for circuit control and protection.

[0025] like Figure 1 , Figure 4 and Figure 6As shown, the booster pump power unit is a double-headed cylinder 10, and the two ends of the piston rod of the double-headed cylinder 10 are respectively connected to the plungers of the two plunger booster pumps 2. By setting the double-headed cylinder 10, one power unit can drive two plunger booster pumps 2, which has a higher degree of integration and is more compact.

[0026] like Figure 5 As shown, the top of the main support frame 5 is provided with a rearward protruding plate 501, and the bottom of the controller 9 is fixedly connected to a connecting plate 6; the protruding plate 501 and the connecting plate 6 are hinged by a hinge shaft 11; the protruding plate 501 and the connecting plate 6 are locked by a locking pin 12; when in use, the controller 9 is flipped to the top of the main support frame 5 and locked by the locking pin 12; when not in use or during transportation, the controller 9 is flipped 180° backward to save more space.

[0027] like Figure 6 As shown, the plunger booster pump 2 includes a pump body 201, on which a cavity 202 is provided and an inlet 207 and an outlet 208 communicating with the cavity 202. A suction valve 203 is connected to the inlet 207 and a discharge valve 204 is connected to the outlet 208. A plunger 209 is movably connected inside the cavity 202. An inlet pipe 205 is connected to the inlet 207 and an outlet pipe 206 is connected to the outlet 208. When the suction valve 203 is open, the discharge valve 204 is closed, and the material enters the cavity 202. When the suction valve 203 is closed, the discharge valve 204 is opened, and the material is discharged from the cavity 202.

[0028] like Figure 1 As shown, two pressure gauges 13 are fixedly connected to the material block 8 to detect the material pressure in the material transfer channel 801 and the material transfer channel 802; different connectors 14 are connected to the front ends of the material transfer channel 801 and the material transfer channel 802; the connectors 14 are used to connect the spray gun through the pipe.

[0029] The working principle of the above embodiments is as follows:

[0030] Both polyurethane and polyurea are formed by the reaction of two liquid chemical raw materials. Polyurethane is formed by the reaction of polyols and isocyanates, while polyurea is formed by the reaction of isocyanates and amine compounds. When spraying polyurethane or polyurea, the two components need to be pressurized by entering two plunger booster pumps 2. After pressurization, they enter the material one heating channel and material two heating channel of heater 7 through pipelines for heating. After heating, they enter the material one transfer channel 801 and material two transfer channel 802 of material block 8 through pipelines. Finally, they enter the spray gun through a constant temperature pipeline for mixing and spraying.

[0031] This embodiment achieves pressurization and heating of materials by setting up a booster pump and a heater, which can increase the pressure of the materials to 12-15 MPa and heat the temperature of the materials to 32-65℃; by setting up material blocks, the material pipeline can be transferred and switched at the material blocks; by setting up a controller, the equipment can be centrally controlled, and the controller is set on the top for easy operation.

[0032] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A polyurethane / polyurea spraying machine, comprising a base (1), a plunger booster pump (2), and a heater (7), characterized in that, A bottom cover (3) is fixedly connected to the top of the base (1), and a transformer (4) and a solid-state relay (15) are installed inside the bottom cover (3); a main support frame (5) is fixedly connected to the top of the base (1), and two plunger booster pumps (2) and a booster pump power unit that provides power to the two plunger booster pumps (2) are fixedly connected to the front side of the main support frame (5); the plunger booster pumps (2) and the booster pump power unit are located above the bottom cover (3); a controller (9) is connected to the top of the main support frame (5); and the bottom cover (3) is fixed to the rear side. A heater (7) is connected, and a material heating channel 1 and a material heating channel 2 are provided inside the heater (7); a material block (8) is fixedly connected to the top of the bottom cover (3), and a material transfer channel 1 (801) and a material transfer channel 2 (802) are provided inside the material block (8); the outlet of the material heating channel 1 is connected to the material transfer channel 1 (801) through a pipe, and the inlet is connected to one of the plunger booster pumps (2) through a pipe; the outlet of the material heating channel 2 is connected to the material transfer channel 2 (802) through a pipe, and the inlet is connected to another plunger booster pump (2).

2. The polyurethane polyurea spraying machine as described in claim 1, characterized in that, The booster pump power unit is a double-headed cylinder (10), and the two ends of the piston rod of the double-headed cylinder (10) are respectively connected to the plungers of two plunger booster pumps (2).

3. The polyurethane polyurea spraying machine as described in claim 1, characterized in that, The top of the main support frame (5) is provided with a protruding plate (501) that protrudes to the rear, and the bottom of the controller (9) is fixedly connected to a connecting plate (6); the protruding plate (501) and the connecting plate (6) are hinged by a hinge shaft (11); the protruding plate (501) and the connecting plate (6) are locked by a locking pin (12).

4. The polyurethane polyurea spraying machine as described in claim 1, characterized in that, The plunger booster pump (2) includes a pump body (201), on which a cavity (202) and an inlet (207) and an outlet (208) communicating with the cavity (202) are provided. A suction valve (203) is connected to the inlet (207), and a discharge valve (204) is connected to the outlet (208). A plunger (209) is movably connected inside the cavity (202). An inlet pipe (205) is connected to the inlet (207), and an outlet pipe (206) is connected to the outlet (208).

5. The polyurethane polyurea spraying machine as described in claim 1, characterized in that, A pressure gauge (13) is fixedly connected to the material block (8) to detect the material pressure in the material transfer channel (801) and the material transfer channel (802); a connector (14) is connected to the front end of the material transfer channel (801) and the material transfer channel (802).

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