CN115106221A

CN115106221A - Thermal spraying equipment for coating

Info

Publication number: CN115106221A
Application number: CN202210813027.7A
Authority: CN
Inventors: 胡申标; 杨秀鸿
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-07-11
Filing date: 2022-07-11
Publication date: 2022-09-27

Abstract

The invention relates to a thermal spraying device for coating, which relates to the technical field of spraying devices and solves the problem that the workpiece can be completely sprayed only by manually rotating during spraying, and the working efficiency is lower in the mode, the thermal spraying device comprises a spraying seat, wherein the spraying seat is a horizontal rectangular cabin, a sinking cavity is arranged in the spraying seat along the length direction of the spraying seat, one end of the sinking cavity is provided with a guide seat, a push rod penetrates through the guide seat, the other end of the sinking cavity is provided with a cover plate, the bottom of the cover plate is provided with a spray pipe limited in the sinking cavity, one end of the spray pipe extends from the sinking cavity to be connected with the push rod, when the position of the spray head in the spraying cavity of a working cover is changed due to swinging, the sprayed coating can sequentially impact different areas of the working cover, the working cover can also perform certain rotating action, so that the workpiece is ensured to rotate due to the impact of the sprayed coating due to the rotation of the working cover, and the sprayed coating can more uniformly cover the surface of the workpiece, the spraying efficiency is improved.

Description

Thermal spraying equipment for coating

Technical Field

The invention relates to the technical field of spraying equipment, in particular to thermal spraying equipment for a coating.

Background

Thermal spraying is to heat and melt a coating material, atomize the coating material into ultrafine particles by a high-speed gas flow, and spray the ultrafine particles onto the surface of a workpiece at a high speed to form a coating. Different coating materials are selected according to requirements, and one or more performances of wear resistance, corrosion resistance, oxidation resistance, heat resistance and the like can be obtained.

When the cylindrical workpiece is subjected to thermal spraying treatment, the workpiece cannot rotate freely, so that the sprayed coating cannot completely cover the surface of the workpiece in a short time, and the work efficiency is low due to the mode of manually rotating the workpiece.

Disclosure of Invention

Based on the defects, the invention provides thermal spraying equipment for coating, which can enable a sprayed cylindrical workpiece (hereinafter, the workpiece is generally referred to as a workpiece) to rotate in a station cover, thereby achieving the aim of comprehensively spraying in a centralized manner and improving the working efficiency.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a hot spraying equipment for coating, includes spouts the seat, it is the horizontally rectangle cabin to spout the seat, it is equipped with heavy chamber to spout its length direction in the seat, the one end in heavy chamber is equipped with the guide holder, it has the push rod to run through in the guide holder, the other end in heavy chamber is equipped with the apron, the bottom of apron be equipped with spacing in the spray tube in heavy chamber, the one end of spray tube extends to from heavy chamber and connects in the push rod, the other end of spray tube tilts up from heavy intracavity portion after outwards extending between heavy chamber and the apron, and this perk end of spray tube is equipped with the shower nozzle, the outer wall of support is installed and is corresponded at spray tube outlying support, the support extends and installs the commentaries on classics cover in order to keep away from the direction of shower nozzle, install on the commentaries on classics cover and can follow its rotatory station cover, the opening of station cover is towards in the shower nozzle down, and run through the perforation that has two at least departments to close on each other on the station cover, two bearings are respectively embedded at two ends of the through hole, and a roller is arranged in each bearing; the rotating shaft is arranged in the sinking cavity, the bottom of the tilting end of the spray pipe rotates on the rotating shaft, so that the spray pipe can drive the spray head to swing in the range of the bottom of the spraying cavity around the rotating shaft under the pushing of the push rod, and spray layer coating sprayed by the spray head into the spraying cavity, so that the station cover rotates above the spray head around the support through the rotating sleeve.

As further preferred: a gap is reserved between two rollers on the same side of the station cover, and the two rollers on the same side of the station cover and the two rollers on the opposite side of the station cover are respectively on the same axis.

As further preferred: the spraying seat is fixed with a motor, an output power shaft of the motor is provided with a connecting rod structure, and the other end of the connecting rod structure extends from the upper part of the sinking cavity and is movably connected with the push rod through a hinge shaft.

As further preferred: the guide seat is provided with a guide hole used for being in sliding fit with the push rod, the cross section of the guide hole is in a straight-line or cross-shaped structure, and the shape of the cross section of the push rod is matched with that of the guide hole.

As further preferred: the station cover is equipped with the triangle-shaped chamber that spouts that the opening is down, the one end that the triangle-shaped spouts the chamber crosses the shower nozzle and extends in heavy chamber top, and the other end that the triangle-shaped spouted the chamber is reversed to cross the shower nozzle and extends to outside the scope in heavy chamber, and wherein the triangle-shaped spouts that the chamber extends to the one end length outside the heavy chamber to be greater than triangle-shaped and spouts the chamber and extend the length in heavy chamber top one end.

As further preferred: a rectangular movable groove is formed in the outer wall of the spraying seat towards the sinking cavity, the spraying pipe is connected with a flexible corrugated pipe communicated with the spraying pipe, and the flexible corrugated pipe penetrates through the movable groove to extend out of the spraying seat and is provided with a flange plate.

As further preferred: the lower part of the spraying seat is connected with a receiving hopper, one end of the receiving hopper gradually inclines downwards along the lower part of the spraying seat and extends to a position far away from the station cover, the other end of the receiving hopper extends to the end part of the spraying seat along the lower part of the spraying seat and continues to extend upwards and bend to be close to the station cover, and a plurality of leakage holes which enable the spraying seat and the receiving hopper to be communicated up and down are formed in the self-sinking cavity.

As further preferred: the collecting cover is arranged at one end, far away from the station cover, of the receiving hopper and is a circular pipe which faces upwards vertically, and the bottom end of the circular pipe is provided with a seepage hole which enables a pipe cavity of the circular pipe to be communicated with the receiving hopper.

As further preferred: a piston rod is arranged in the collecting cover, a steel wire is connected to the piston rod, the steel wire penetrates through the spraying seat to enter the sinking cavity and is connected to the push rod, a return pipe communicated with the flexible corrugated pipe penetrates through the collecting cover, and a check valve is mounted on the return pipe.

As further preferred: and a support is arranged at the bottom of the spraying seat along the length direction of the spraying seat.

Compared with the prior art, the invention has the following beneficial effects:

the spraying seat with the rectangular sinking cavity is arranged, the spraying pipe slides in the sinking cavity through the push rod, one end, close to the spraying head, of the spraying pipe is arranged to be tilted, and the rotating shaft is movably connected, so that when the spraying head is used for spraying a workpiece, the tilting end swings back and forth in the spraying range of the workpiece under the pushing of the push rod, and therefore the sprayed coating can be sprayed onto the workpiece more uniformly.

The station cover is provided with the roller for placing the workpiece, the coating sprayed by the spray head towards the station cover is sprayed onto the workpiece, the workpiece can freely rotate due to the impact of the coating when placed on the roller, and when the position of the spray head changes in a spray cavity of the station cover due to swinging, the sprayed coating can sequentially impact different areas of the station cover and can also rotate to a certain extent, so that the workpiece can rotate due to the rotation of the station cover and the impact of the sprayed coating, and the sprayed coating can more uniformly cover the surface of the workpiece, and the spraying efficiency can be improved.

Drawings

FIG. 1 is a schematic structural diagram of a front view plane of the present invention;

FIG. 2 is a schematic front plan view of the present invention, taken from FIG. 1;

FIG. 3 is a bottom perspective view of the present invention from FIG. 2;

FIG. 4 is a schematic view of the cut-away internal structure of the present invention;

fig. 5 is a schematic view showing the inner structure of the collecting cover of the present invention after being cut.

Description of the main reference numerals:

1. a spray seat; 2. a support; 3. sinking the cavity; 4. a guide seat; 41. a guide hole; 5. a push rod; 6. a cover plate; 7. a nozzle; 8. a spray head; 9. a support; 10. rotating the sleeve; 11. a station cover; 12. perforating; 13. a bearing; 14. a drum; 15. a gap; 16. a rotating shaft; 17. a spray chamber; 18. a motor; 19. a connecting rod structure; 20. a movable groove; 21. a flexible bellows; 22. a flange plate; 23. a receiving hopper; 24. a leak hole; 25. a collection hood; 26. a circular tube; 27. infiltrating holes; 28. a piston rod; 29. a steel wire; 30. a return pipe; 31. a one-way valve.

Detailed Description

The technical solutions of the present invention will be described in detail and fully with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments, but not all embodiments, of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the orientations or positional relationships indicated as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., appear based on the orientations or positional relationships shown in the drawings only for the convenience of describing the present invention and simplifying the description, but not for indicating or implying that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" should be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be specifically understood by those skilled in the art.

Referring to the attached drawings 1-5, a thermal spraying device for coating comprises a spraying seat 1, wherein the spraying seat 1 is a horizontal rectangular cabin, a support 2 is arranged at the bottom of the spraying seat 1 along the length direction of the spraying seat, a sinking cavity 3 is arranged in the spraying seat 1 along the length direction of the spraying seat, one end of the sinking cavity 3 is provided with a guide seat 4, a push rod 5 penetrates through the guide seat 4, the other end of the sinking cavity 3 is provided with a cover plate 6, the bottom of the cover plate 6 is provided with a spray pipe 7 limited in the sinking cavity 3, one end of the spray pipe 7 extends to be connected to the push rod 5 along the sinking cavity 3, the other end of the spray pipe 7 extends outwards between the sinking cavity 3 and the cover plate 6 and then tilts upwards from the inside of the sinking cavity 3, and a spray head 8 is arranged at the tilting end of the spray pipe 7, therefore, the spray pipe 7 corresponding to the sinking cavity 3 can move back and forth under the driving of the push rod 5, and forth, and back, and forth movement is realized because a rotating shaft 16 is arranged in the sinking cavity 3, the bottom of the tilting end of the spray pipe 7 rotates on the rotating shaft 16, therefore, the spray pipe 7 can drive the spray head 8 to swing around the rotating shaft 16 under the pushing of the push rod 5, and a station cover 11 for placing a workpiece is arranged above the swinging spray head 8, and the structure of the station cover is as follows:

the outer wall of the support 2 is provided with a support 9 corresponding to the periphery of the spray pipe 7, the support 9 extends in the direction away from the spray head 8 and is provided with a rotating sleeve 10, a station cover 11 is rotatably arranged on the support 9 through the rotating sleeve 10, the opening of the station cover 11 faces downwards and faces the spray head 8, at least two mutually adjacent through holes 12 penetrate through the station cover 11, two ends of each through hole 12 are respectively embedded with a bearing 13, a roller 14 is arranged in each bearing 13, a gap 15 is reserved between the two rollers 14 on the same side of the station cover 11, the two rollers 14 on the same side of the station cover 11 and the two rollers 14 on the opposite side of the same side of the station cover are respectively on the same axis, when in actual use, at least two workpieces can be simultaneously inserted into the station cover 11 from the outer side of the station cover 11 along the rotating sleeve 10, the bottom opening of the station cover 11 is a spray cavity 17, so that the workpieces are finally arranged in the spray cavity 17, as can be seen from the above description, the movement range of the swinging motion of the nozzle 8 in the present invention corresponds to the lower part of the spray chamber 17, i.e. the coating material sprayed by the nozzle 8 is sprayed into the spray chamber 17 and swings back and forth along with the spraying of the coating material, so that the coating material is more uniformly sprayed onto the workpiece, and the workpiece feeding effect is better. According to the spraying range, when the spray head 8 swings back and forth and sprays the coating material, a large amount of coating material can be sprayed back and forth in the outline range of the spray cavity 17, and the coating material has certain impact property (the sprayed workpiece is matched with an air compressor for use, so that the material is sprayed with high impact property), so that the station cover 11 swings back and forth above the spray head 8 around the support 9 through the rotary sleeve 10 when spraying back and forth in the range of the spray cavity 17, the workpiece in the spray cavity 17 follows the roller 14 to perform circumferential rotation motion in the spray cavity 17 along with the above motion of the station cover 11, and meanwhile, the coating material sprayed from the spray head 8 can spray the workpiece comprehensively.

In order to automate the movement of the push rod 5 with the nozzle 7 to and fro, it is therefore shown in fig. 1: a motor 18 is fixed on the spray seat 1, a connecting rod structure 19 is installed on an output power shaft of the motor 18, and the other end of the connecting rod structure 19 extends from the upper part of the sinking cavity 3 and is movably connected to the push rod 5 through a hinge shaft.

In order to ensure that the push rod 5 pushes the nozzle 7 to realize linear motion and not rotate in the caisson 3, the following steps are performed as shown in fig. 3 and 4: the guide seat 4 is provided with a guide hole 41 for slidably fitting the push rod 5, the cross-sectional shape of the guide hole 41 is a straight line or cross-shaped structure, and the cross-sectional shape of the push rod 5 matches the cross-sectional shape of the guide hole 41.

In order to improve the structural reasonableness of the station cover 11 and the spray cavity 17 in the station cover 11 and ensure that the spray cavity 17 of the station cover 11 facing the spray head is a triangular spray cavity 17 when the paint sprayed from the spray head 8 can swing along with the spray head 8 by utilizing the impact property of the paint, one end of the triangular spray cavity 17 crosses the spray head 8 and extends above the sinking cavity 3, the other end of the triangular spray cavity 17 reversely crosses the spray head 8 and extends out of the range of the sinking cavity 3, namely, the rotating sleeve 10 at the top end of the station cover 11 is actually positioned in the middle of the top of the station cover, so that the station cover can flexibly swing when being influenced by the spray head 8, wherein the length of one end of the triangular spray cavity 17 extending out of the sinking cavity 3 is greater than the length of one end of the triangular spray cavity 17 extending above the sinking cavity 3, and the station cover can swing and reset due to the larger size of one end after one-time swinging action, when the spray head 8 swings to spray the large-end range again, the spray cavity 17 is impacted again, and the station cover 11 finishes the next swinging action again.

As shown in fig. 1, 4 and 5: a receiving hopper 23 is connected below the spray base 1, one end of the receiving hopper 23 gradually inclines downwards along the lower part of the spray base 1 and extends to a position far away from the station cover 11, the other end of the receiving hopper 23 extends to the end part of the spray base 1 along the lower part of the spray base 1 and continues to extend upwards and is bent to be close to the station cover 11, a plurality of leakage holes 24 which enable the spray base 1 and the receiving hopper 23 to be communicated up and down are arranged in the self-sinking chamber 3, when the spraying work is carried out, the excessive coating generated in the spraying process passes through the leakage holes 24 and falls into the receiving hopper 23, along with the continuous operation of the spraying work, particularly in a batch type working mode, the coating is collected in the receiving hopper 23, because the collecting cover 25 is arranged at one end of the receiving hopper 23 far away from the station cover 11, the collecting cover 25 is a circular pipe 26 which is vertically upwards, and the bottom end of the circular pipe 26 is provided with a seepage hole 27 which enables the pipe cavity of the pipe to be communicated with the receiving hopper 23, so that the coating collected by the receiving hopper 23 can seep through the seepage hole 27 and finally collects in the circular pipe 26 of the collecting cover 25, because the piston rod 28 is arranged in the circular tube 26 of the collecting cover 25, the steel wire 29 is connected on the piston rod 28, and the steel wire 29 penetrates through the spray seat 1 and enters the sinking chamber 3 and is connected with the push rod 5, when the push rod 5 pushes the spray pipe 7 to perform linear displacement back and forth in the sinking chamber 3 in the spraying process, the piston rod 28 is pulled by the steel wire 29 to perform reciprocating lifting action in the circular tube 26 (similar to oil cylinder working, certainly, a tension spring or other resetting structures for resetting the piston rod 28 after moving upwards are arranged between the circular tube 26 and the piston rod 28 to realize back and forth movement, the existing resetting technology is not repeated), and because the return pipe 30 communicated with the flexible corrugated pipe 21 is also penetrated on the collecting cover 25, the return pipe 30 is provided with the one-way valve 31, so that when the piston rod 28 performs frequent lifting action in the circular tube 26, the paint collected in the tube cavity of the circular tube 26 is conveyed to the return pipe 30 again like oil cylinder working, the piston rod 28 generates pressure through frequent action in the circular tube 26, recovered coating is pushed by the pressure to open the one-way valve 31 and flows back to the flexible corrugated tube 21 along the return tube 30 to be converged with a supply source, and the recovered coating is conveyed into the spray pipe 7 again through the flexible corrugated tube 21 for secondary utilization, so that materials are saved.

It needs to be further explained that: the outer wall of the spraying seat 1 is provided with a rectangular movable groove 20 towards the sinking cavity 3, the spraying pipe 7 is connected with a flexible corrugated pipe 21 communicated with the spraying pipe 7, the flexible corrugated pipe 21 penetrates through the movable groove 20 to extend out of the spraying seat 1 and is provided with a flange plate 22, when the spraying device is in actual use, the flexible corrugated pipe 21 is connected with an external spraying pipeline and an air compressor air supply pipeline by utilizing the flange plate 22 and is used for providing gas and paint for the spraying pipe 7, and the spraying pipe 7 can be driven to move back and forth along the movable groove 20 when moving back and forth in the sinking cavity 3.

The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications. It is intended that the scope of the invention be defined by the claims and their equivalents.

Claims

1. A thermal spraying apparatus for coatings, comprising a spray base (1), characterized in that: spout seat (1) and be the horizontally rectangle cabin, it is equipped with heavy chamber (3) to spout its length direction in seat (1), the one end of heavy chamber (3) is equipped with guide holder (4), run through push rod (5) in guide holder (4), the other end of heavy chamber (3) is equipped with apron (6), the bottom of apron (6) is equipped with spacing in spray tube (7) in heavy chamber (3), the one end of spray tube (7) extends to connecting in push rod (5) from heavy chamber (3), the other end of spray tube (7) sticks up from heavy chamber (3) inside tilt up after outwards extending between heavy chamber (3) and apron (6), and this stick up end of spray tube (7) is equipped with shower nozzle (8), the outer wall of support (2) is installed and is corresponded at spray tube (7) outlying support (9), support (9) extend and install swivel sleeve (10) in the direction of keeping away from shower nozzle (8), a station cover (11) which can rotate along with the rotating sleeve (10) is installed on the rotating sleeve, an opening of the station cover (11) faces downwards and faces the spray head (8), at least two through holes (12) which are adjacent to each other penetrate through the station cover (11), two bearings (13) are respectively embedded at two ends of each through hole (12), and a roller (14) is installed in each bearing (13); a rotating shaft (16) is arranged in the sinking cavity (3), the bottom of the tilting end of the spray pipe (7) rotates on the rotating shaft (16), so that the spray pipe (7) can drive the spray head (8) to swing in the range of the bottom of the spraying cavity (17) around the rotating shaft (16) under the pushing of the push rod (5), and spray layer coating sprayed out through the spray head (8) to the spraying cavity (17), so that the station cover (11) rotates above the spray head (8) around the support (9) through the rotating sleeve (10).

2. The thermal spray apparatus for coating according to claim 1, characterized in that: a gap (15) is reserved between two rollers (14) on the same side of the station cover (11), and the two rollers (14) on the same side of the station cover (11) and the two rollers (14) on the opposite side of the station cover are respectively on the same axis.

3. The thermal spray apparatus for coating according to claim 1, characterized in that: the spray nozzle is characterized in that a motor (18) is fixed on the spray nozzle base (1), a connecting rod structure (19) is installed on an output power shaft of the motor (18), and the other end of the connecting rod structure (19) is movably connected to the push rod (5) through a hinge shaft after extending from the upper part of the sinking cavity (3).

4. The thermal spray apparatus for coating according to claim 1, characterized in that: the guide seat (4) is provided with a guide hole (41) used for being in sliding fit with the push rod (5), the cross section of the guide hole (41) is in a straight line or cross structure, and the cross section of the push rod (5) is matched with the cross section of the guide hole (41).

5. The thermal spray apparatus for coating according to claim 1, characterized in that: station cover (11) are equipped with triangle-shaped and spout chamber (17) that the opening is down, triangle-shaped spouts the one end in chamber (17) and crosses shower nozzle (8) and extend in heavy chamber (3) top, and triangle-shaped spouts the other end in chamber (17) and reversely crosses shower nozzle (8) and extend to outside the scope in heavy chamber (3), and wherein triangle-shaped spouts chamber (17) and extends to the one end length outside heavy chamber (3) and is greater than triangle-shaped and spouts chamber (17) and extend the length in heavy chamber (3) top one end.

6. A thermal spray apparatus for coatings as claimed in claim 5, characterised in that: a rectangular movable groove (20) is formed in the outer wall of the spraying seat (1) towards the sinking cavity (3), a flexible corrugated pipe (21) communicated with the spraying pipe (7) is connected to the spraying pipe, and the flexible corrugated pipe (21) penetrates through the movable groove (20) to extend out of the spraying seat (1) and is provided with a flange plate (22).

7. A thermal spray apparatus for coatings as claimed in claim 6, characterised in that: spout the below of seat (1) and be connected with receiving fill (23), the one end of receiving fill (23) is along spouting the below of seat (1) downward sloping gradually and extending to keeping away from in station cover (11), and the other end of receiving fill (23) extends to the tip of spouting seat (1) and continues upwards to extend and bend to being close to station cover (11) along spouting the below of seat (1), has seted up a plurality of in the heavy chamber (3) and has made spout seat (1) and receive communicating small opening (24) from top to bottom of fighting (23).

8. A thermal spray apparatus for coating according to claim 6, wherein: one end of the receiving hopper (23) far away from the station cover (11) is provided with a collecting cover (25), the collecting cover (25) is a vertical upward round pipe (26), and the bottom end of the round pipe (26) is provided with a seepage hole (27) which enables the pipe cavity of the round pipe to be communicated with the receiving hopper (23).

9. A thermal spray apparatus for coating according to claim 8, wherein: be equipped with piston rod (28) in collecting cover (25), be connected with steel wire (29) on piston rod (28), steel wire (29) run through and get into heavy chamber (3) through spouting seat (1) and be connected in push rod (5), it has and is connected communicating back flow (30) with flexible bellows (21) to run through on collecting cover (25), install check valve (31) on back flow (30).

10. A thermal spray apparatus for coating as claimed in claim 1, in which: the bottom of the spray seat (1) is provided with a support (2) along the length direction.