A waterproof coating spraying device

Abstract

The utility model discloses a waterproof coating spraying device belongs to the molten spraying equipment technical field, including the wire feeding structure, the split type swash plate, motor and air pump, wherein, the wire feeding structure's end is communicated with the molten generator, and the tail end is coaxial transmission connection with motor, and the wire rod can pass wire feeding structure and enter the molten generator and add the molten state material, and the split type swash plate is transmission connection with air pump, and wire feeding structure can drive split type swash plate rotation, and through split type swash plate drive air pump operation. Air pump generates compression airflow in the operation process, thereby will molten state material blow apart. When the specific work, because the inner installation of spray head has the molten generator, when the wire rod passes the outside of the casing and passes through air pump and enters wire feeding structure, then, wire feeding structure will wire rod delivery to molten generator and melt, and through split type swash plate drive air pump generates high speed airflow, finally through spray head will molten state material and spray to the workpiece surface and form coating.

Description

Technical Field

[0001] This utility model relates to the field of melt spraying equipment technology, specifically to a waterproof coating spraying device. Background Technology

[0002] Thermal spraying refers to heating the spraying material to a molten, semi-molten, or softened state using a specific heat source (such as an electric arc or plasma arc), then atomizing it into extremely fine particles using a high-speed airflow, and using compressed air to accelerate the particle beam, causing it to impact the substrate surface at high speed to form a coating.

[0003] As can be seen from the above, when the spraying device is working normally, it not only needs a stable heat source to melt the wire, but also needs to support the continuous supply of materials to the equipment and the pumping of compressed air to accelerate the particle beam in order to carry out the spraying operation. This means that when carrying out thermal spraying operations, it is necessary to connect the air pump, power supply and feeding device at the same time. This results in the spraying device being large in size and bulky in structure, making it difficult to use flexibly and carry.

[0004] In view of this, the applicant further improved the original thermal spray gun structure by integrating the air pump and the feeding device together to facilitate spraying operations. Utility Model Content

[0005] Therefore, this utility model provides a waterproof coating spraying device to solve the problem that the existing spraying devices are bulky and difficult to use and carry flexibly.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] This utility model discloses a waterproof coating spraying device, which includes externally inserted wires and comprises:

[0008] The wire feeding structure has its first end connected to the melt generator and its tail end coaxially connected to the motor for transmission.

[0009] The split swash plate is connected at one end to the air pump drive. The split swash plate is installed at the tail of the wire feeding structure and rotates synchronously with the wire feeding structure.

[0010] The nozzle has a melt generator fixedly installed inside, and the end of the nozzle is connected to the housing. The motor is installed inside the housing.

[0011] The aluminum wire passes through the outside of the housing and through the air pump into the wire feeding structure. The wire feeding structure is adapted to transport the wire into the melting generator for melting, and the air pump is driven by a split swash plate to generate a high-speed airflow to spray the metal onto the surface of the workpiece to form a coating.

[0012] Furthermore, the wire feeding structure includes:

[0013] A cable drum with a spiral groove on the outside, into which a wire is embedded;

[0014] The splined shaft has a connecting shaft fixedly installed at its tail end. The connecting shaft is coaxially connected to the motor for transmission. The head end of the splined shaft is inserted into the cable drum and is coaxially connected to the cable drum for transmission.

[0015] Furthermore, the split-type swashplate consists of two symmetrically arranged split blocks, each split block comprising:

[0016] The base has an inclined surface at the top and a shaft hole at the center. A spline groove is provided in the shaft hole. Two symmetrically arranged split blocks cooperate with the spline shaft through the spline groove.

[0017] A spherical groove is provided on the inclined surface, and the spherical groove drives the air pump to operate.

[0018] Furthermore, the air compressor includes:

[0019] The pump body has an inner cavity at its shaft center, in which a cable drum is rotatably mounted. The pump body has a feed hole on its exterior, through which wire enters the inner cavity and is wound around the cable drum.

[0020] A number of compressed air chambers are evenly arranged around the inner cavity. Each compressed air chamber is connected to a one-way air valve. The one-way air valve is located on the outside of the limiting seat. The limiting seat is located at the end of the pump body and is integrally formed with the pump body.

[0021] The piston rod has its front end slidably disposed in a single compressor chamber, and its rear end is provided with a ball bearing that passes through the pump body and is embedded in the spherical groove.

[0022] Furthermore, the limiting seat includes a mounting base, a limiting strip, a limiting ring, and a valve mounting hole. The pump body is connected to the mounting base, and the limiting strip is provided inside the mounting base. The limiting strip is snapped and fixed to the melt generator.

[0023] The mounting base is provided with a limiting ring on the outside, and the limiting ring is provided with a plurality of valve mounting holes along the radial direction, and the one-way valve is installed in the valve mounting holes.

[0024] Furthermore, the melt generator includes:

[0025] The electric heating shell has an external slot that engages with the limiting strip for fixation.

[0026] The wire has a tapered hole with a tapered helical groove on its inner wall, and the tapered helical groove is connected to the spiral groove.

[0027] The bottom of the melting tank is connected to the conical hole of the wire, and a heating element is installed inside the melting tank;

[0028] The electric heating shell has a melting tank located at its axis, and the melting tank is connected to several compressed air chambers through several air guide channels.

[0029] Furthermore, the electric heating shell is made of silicon carbide, aluminum oxide, and ferrosilicon.

[0030] Furthermore, the nozzle is a Laval nozzle.

[0031] Furthermore, the heating element is an induction coil heater, a laser heater, or an arc heater.

[0032] This utility model has the following advantages:

[0033] This utility model discloses a waterproof coating spraying device that employs a thermal spraying process. It utilizes high-temperature molten wire, which is then dispersed into high-speed droplets by a compressed air pump for impact cooling and adhesion to the substrate. Compared to existing technologies, this solution effectively integrates the conveying structure with the compressor. A motor can then synchronously drive the compressed air pump and the wire feeding structure, enabling the spraying material feeding operation. Compared to existing technologies, this device boasts a compact and efficient structure, solving the problems of large size and bulky design that hinder flexible use and portability in existing spraying devices. Attached Figure Description

[0034] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0035] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0036] Figure 1 A perspective view of the waterproof coating spraying device provided by this utility model;

[0037] Figure 2 A perspective view of the melt generator provided for this utility model;

[0038] Figure 3 A perspective view of the air compressor provided for this utility model;

[0039] Figure 4 A perspective view of the limiting card holder provided by this utility model;

[0040] Figure 5 A three-dimensional view of the split-type inclined plate provided for this utility model;

[0041] Figure 6 A perspective view of the wire feeding structure provided by this utility model;

[0042] In the diagram: 1. Wire feeding structure; 11. Cable winding drum; 12. Spiral groove; 13. Splined shaft; 14. Connecting shaft; 2. Melting generator; 21. Electric heating shell; 22. Air guide channel; 23. Wire cone hole; 25. Melting tank; 3. Split swashplate; 31. Seat; 32. Inclined surface; 33. Spherical slide; 34. Spline groove; 35. Shaft hole; 4. Air pump; 41. Pump body; 42. One-way air valve; 43. Air chamber; 44. Inner cavity; 45. Feed hole; 46. Piston rod; 47. Limiting seat; 471. Mounting seat; 472. Limiting strip; 473. Limiting ring; 474. Air valve mounting hole; 48. Ball bearing; 5. Motor; 6. Housing; 7. Nozzle. Detailed Implementation

[0043] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0044] Please refer to this as well. Figures 1-6 This utility model discloses a waterproof coating spraying device, which is equipped with wires and connected to a power source to melt the wires. At the same time, an electric motor is used to simultaneously complete the feeding and output of compressed air. This optimizes the structure of the spray gun and significantly improves the portability and flexibility of the spraying equipment.

[0045] In one specific embodiment disclosed in this utility model, such as Figure 1The waterproof coating spraying device includes a wire feeding structure 1, a split-type swashplate 3, a motor 5, and a compressed air pump 4. One end of the wire feeding structure 1 is connected to a melt generator 2, and the other end is coaxially connected to the motor 5. The wire can pass through the wire feeding structure 1 into the melt generator 2 and be heated to a molten state. The split-type swashplate 3 is installed at the tail end of the wire feeding structure 1, and its end is connected to the compressed air pump 4. The wire feeding structure 1 drives the split-type swashplate 3 to rotate, which in turn drives the compressed air pump 4. During operation, the compressed air pump 4 generates compressed airflow. The wire feeding structure 1 is coaxially connected to the motor 5 inside the casing 6, thus achieving synchronous feeding and compressed airflow output. On the other hand, the nozzle 7 is connected to the casing 6 at its end, and the melt generator 2 is fixedly installed inside the nozzle 7. In actual operation, aluminum wire or other wire passes through the outside of the housing 6 and through the air pump 4 into the wire feeding structure 1. Then, the wire feeding structure 1 is adapted to transport the wire to the melting generator 2 for melting, and through the split swash plate 3, the air pump 4 generates a high-speed airflow to spray the molten material onto the surface of the workpiece to form a coating.

[0046] In this embodiment, the nozzle 7 is a Laval nozzle to increase the velocity of the ejected particles and reduce wire loss.

[0047] In some embodiments, such as Figure 2 The melting generator 2 includes an electric heating shell 21, a wire conical hole 23, and a melting tank 25. The electric heating shell 21 has an external locking groove 27 that engages with the limiting strip 472 of the air compressor 4. The melting tank 25 is located along the axis of the electric heating shell 21, with its bottom connected to the wire conical hole 23. A heating core 24 is installed inside the melting tank 25 to melt the wire. The melting tank 25 is positioned along the axis of the electric heating shell 21 and is connected to several air chambers 43 via several air channels 22, thereby increasing the pressure within the melting tank 25. This allows the wire, after being melted by the heating core 24, to be fully mixed with air. After passing through the nozzle 7 to increase the flow rate, a jet is formed to spray the substrate.

[0048] In this embodiment, the electric heating shell 21 is made of silicon carbide, aluminum oxide and ferrosilicon to prevent the electric heating shell 21 from being burned through by high temperature.

[0049] In this embodiment, as Figure 2 The inner wall of the wire conical hole 23 is provided with a conical helical groove 26, which is connected to the spiral groove 12, thereby continuously feeding wire into the heating core 24. The heating core 24 is a high-frequency induction heater, an arc heater, or a laser heater, which can heat and melt various metal and non-metal wires, and form high-speed molten droplets under the action of the air pump 4 to complete impact cooling and adhere to the substrate.

[0050] In one specific embodiment of this utility model, the wire feeding structure 1 includes a cable drum 11 and a splined shaft 13. A spiral groove 12 is provided on the outer side of the cable drum 11, and wire is embedded within the spiral groove 12. Since the spiral groove 12 is wound around the outer side of the cable drum 11, when the cable drum 11 rotates, the wire can be fed into the melting generator 2, and then into the hot core 24 to be heated into a molten state. Furthermore, the splined shaft 13 is inserted into the cable drum 11, and the splined shaft 13 is coaxially connected to the cable drum 11. The splined shaft 13 is also fixedly mounted to a connecting shaft 14, and the motor 5 is coaxially connected to the splined shaft 13 via the connecting shaft 14, thereby driving the wire feeding structure 1 to rotate.

[0051] In some embodiments, such as Figure 3 The air compressor 4 includes a pump body 41, an air chamber 43, and a piston rod 46. The pump body 41 has an inner cavity 44 at its axial center, within which a cable drum 11 is rotatably mounted. An inlet hole 45 is located on the outside of the pump body 41. Wire enters the inner cavity 44 through the inlet hole 45 and winds into the spiral groove 12 on the cable drum 11. Multiple air chambers 43 are arranged around the inner cavity 44, each connected to a one-way valve 42. The one-way valve 42 is located outside a limiting seat 47, which is integrally formed with the pump body at its end. Based on this structure, the piston rod 46 has a slidable end within a single air chamber 43 and a ball bearing 48 at its tail end, which passes through the pump body 41 and embeds into a spherical groove 33. The ball bearing 48 reduces frictional resistance.

[0052] In this embodiment, the split swashplate 3 consists of two symmetrically arranged split blocks. Each split block includes a base 31 and a spherical groove 33. The base 31 is semi-cylindrical with an inclined surface 32 at the top and a shaft hole 35 at the center. A spline groove 34 is provided in the shaft hole 35. The two symmetrically arranged split blocks cooperate with the spline shaft 13 through the spline groove 34. On the other hand, the spherical groove 33 is provided on the inclined surface 32, and the spherical grooves 33 of the two split blocks are aligned. This allows the spherical groove 33 to push the ball bearing 48, thereby driving the piston rod 46 to reciprocate within the compression chamber 43. Since the split swashplate 3 is a split structure, it is beneficial for the ball bearing 48 to be embedded in the spherical groove 33.

[0053] In this embodiment, as Figure 4The limiting seat 47 includes a mounting base 471, a limiting strip 472, a limiting ring 473, and a valve mounting hole 474. The pump body 41 is connected to the mounting base 471. The limiting strip 472 is provided inside the mounting base 471 and is fixedly engaged with the melt generator 2. The limiting ring 473 is provided outside the mounting base 471. The limiting ring 473 has several valve mounting holes 474 arranged radially. One-way valves 42 are installed in the valve mounting holes 474. Thus, the one-way valves 42 can communicate with the outside through the valve mounting holes 474 to draw air into the compression chamber 43. The piston rod 46 moves back and forth in the compression chamber 43 to generate compressed airflow.

[0054] Although the present invention has been described in detail above with general descriptions and specific embodiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A waterproof coating spraying device, externally fitted with wire, characterized in that, include: The wire feeding structure (1) is connected at the beginning to the melt generator (2) and at the end to the motor (5) via coaxial transmission. The split swash plate (3) is connected to the air compressor (4) at its end. The split swash plate (3) is installed at the tail of the wire feeding structure (1) and rotates synchronously with the wire feeding structure (1). The nozzle (7) has a melt generator (2) fixedly installed inside it. The end of the nozzle (7) is connected to the housing (6). The motor (5) is installed inside the housing (6). The wire passes through the outside of the housing (6) and through the air pump (4) into the wire feeding structure (1). The wire feeding structure (1) is adapted to transport the wire to the melting generator (2) for melting and drive the air pump (4) through the split swash plate (3) to generate a high-speed airflow to spray the molten material onto the surface of the workpiece to form a coating.

2. The waterproof coating spraying device according to claim 1, characterized in that, The wire feeding structure (1) includes: The cable drum (11) has a spiral groove (12) on its outer side, and a wire is embedded in the spiral groove (12); The spline shaft (13) has a connecting shaft (14) fixedly installed at its tail end. The connecting shaft (14) is coaxially connected to the motor (5). The head end of the spline shaft (13) is inserted into the cable drum (11) and coaxially connected to the cable drum (11).

3. The waterproof coating spraying device according to claim 2, characterized in that, The split-type swashplate (3) consists of two symmetrically arranged split blocks, each of which includes: The base (31) has an inclined surface (32) on the top and a shaft hole (35) at the center. A spline groove (34) is provided in the shaft hole (35). Two symmetrically arranged split blocks cooperate with the spline shaft (13) through the spline groove (34). A spherical groove (33) is provided on the inclined surface (32), and the spherical groove (33) drives the air pump (4) to operate.

4. The waterproof coating spraying device according to claim 3, characterized in that, The air compressor (4) includes: The pump body (41) has an inner cavity (44) at its shaft center. A cable drum (11) is rotatably arranged in the inner cavity (44). A feed hole (45) is provided on the outside of the pump body (41). The wire enters the inner cavity (44) through the feed hole (45) and is wound on the cable drum (11). A number of compressed air chambers (43) are evenly arranged around the inner cavity (44). Each compressed air chamber (43) is connected to a one-way air valve (42). The one-way air valve (42) is located on the outside of the limiting seat (47). The limiting seat (47) is located at the end of the pump body (41) and is integrally formed with the pump body. The piston rod (46) is slidably disposed at the front end in a single compressed air chamber (43), and is provided with a ball bearing (48) at the rear end, and passes through the pump body (41) and is embedded in the spherical groove (33).

5. The waterproof coating spraying device according to claim 4, characterized in that, The limiting seat (47) includes a mounting base (471), a limiting strip (472), a limiting ring (473), and a valve mounting hole (474). The pump body (41) is connected to the mounting base (471). The limiting strip (472) is provided inside the mounting base (471). The limiting strip (472) is snapped and fixed to the melt generator (2). The mounting base (471) is provided with a limiting ring (473) on the outside. The limiting ring (473) is provided with a plurality of valve mounting holes (474) along the radial direction. The one-way valve (42) is installed in the valve mounting holes (474).

6. The waterproof coating spraying device according to claim 5, characterized in that, The melt generator (2) includes: The electric heating shell (21) has a slot (27) on the outside, and the slot (27) is engaged and fixed with the limiting strip (472); The wire conical hole (23) has a conical helical groove (26) on its inner wall, and the conical helical groove (26) is connected to the helical groove (12); The bottom of the molten tank (25) is connected to the wire cone hole (23), and a heat core (24) is installed inside the molten tank (25); The electric heating shell (21) is provided with a melting tank (25) at its axis, and the melting tank (25) is connected to a plurality of compressed air chambers (43) through a plurality of air guiding channels (22).

7. The waterproof coating spraying device according to claim 4, characterized in that, The electric heating shell (21) is made of silicon carbide, aluminum oxide and ferrosilicon.

8. The waterproof coating spraying device according to claim 6, characterized in that, The heat core (24) is an induction coil heater, a laser heater, or an electric arc heater.

Images