CN216419891U

CN216419891U - Paint spraying device for valve

Info

Publication number: CN216419891U
Application number: CN202123031535.XU
Authority: CN
Inventors: 张百灵; 江永强
Original assignee: Jiangsu Decon Valve Manufacturing Co ltd
Current assignee: Jiangsu Decon Valve Manufacturing Co ltd
Priority date: 2021-12-06
Filing date: 2021-12-06
Publication date: 2022-05-03
Anticipated expiration: 2031-12-06

Abstract

The utility model discloses a paint spraying device for a valve, which comprises a box body, a clapboard, a moving mechanism, a rotating mechanism, a fixed head and a paint spraying assembly; the inner part of the box body is vertically provided with a partition board in a bilateral symmetry manner, and the inner part of the box body is divided into a spray booth and driving rooms in bilateral symmetry by the partition board; each driving chamber is internally provided with a moving mechanism, the two moving mechanisms are symmetrically arranged, the moving direction of the moving end of each moving mechanism is horizontally and transversely arranged, and the moving end of each moving mechanism is provided with a rotating mechanism; each rotating mechanism is arranged in the corresponding driving chamber, and the rotating ends of the rotating mechanisms horizontally and transversely extend to the paint spraying chamber respectively and are connected with the corresponding fixing heads respectively to drive the corresponding fixing heads to vertically and longitudinally rotate; the valve is clamped and fixed by the two fixing heads and vertically and longitudinally rotates along with the fixing heads; the paint spraying assembly is arranged in the paint spraying chamber, and the paint spraying end of the paint spraying assembly is arranged towards the direction of the valve to spray paint for the valve. The utility model discloses realize all-round even spraying paint, improved the effect of spraying paint.

Description

Paint spraying device for valve

Technical Field

The utility model relates to the technical field of valves, concretely relates to paint spraying apparatus that valve was used.

Background

The valve is a control part in the fluid conveying system and has the functions of stopping, adjusting, guiding, preventing counter flow, stabilizing pressure, shunting or overflowing and relieving pressure and the like; valves used in fluid control systems range in variety and size from the simplest shut-off valves to the variety of valves used in extremely complex autonomous systems. In the production process of the valve, materials such as stainless steel are treated, and after the materials are processed, the materials are polished and then painted to prevent metal materials on the surface of the valve from rusting.

However, the existing valve paint spraying device is generally difficult to finish paint spraying on the outer surface of the valve at one time, paint leakage is easy, and the paint spraying efficiency and the paint spraying effect are reduced. Therefore, the above problems need to be solved.

Disclosure of Invention

The to-be-solved technical problem of the utility model is to provide a paint spraying apparatus that valve was used, uses through the cooperation of moving mechanism, slewing mechanism and fixed head, can fix the valve on two fixed heads to rotate along with the fixed head, thereby realized all-round evenly spray paint, improved the paint spraying efficiency and the effect of spraying paint.

In order to solve the technical problem, the utility model discloses take following technical scheme: the utility model discloses a paint spraying apparatus that valve was used, its innovation point lies in: comprises a box body, a clapboard, a moving mechanism, a rotating mechanism, a fixed head and a paint spraying assembly; the box body is of a horizontally arranged hollow cuboid structure, partition plates matched with the box body are vertically and longitudinally arranged in the box body in a bilateral symmetry mode, and the interior of the box body is divided into a spray booth and driving rooms in bilateral symmetry mode through the partition plates; each driving chamber is also provided with a moving mechanism, the two moving mechanisms are symmetrically arranged, the moving directions of the moving ends of the moving mechanisms are horizontally and transversely arranged, and the moving ends of the moving mechanisms are also provided with rotating mechanisms respectively; each rotating mechanism is arranged in the corresponding driving chamber, and the rotating end of each rotating mechanism horizontally and transversely extends to the middle position in the paint spraying chamber and is connected with the corresponding fixing head respectively to drive the corresponding fixing head to vertically and longitudinally rotate; the valve is clamped and fixed by the two fixing heads and vertically and longitudinally rotates along with the fixing heads; the upper position in the paint spraying chamber is provided with a paint spraying assembly, and the paint spraying end of the paint spraying assembly is arranged towards the direction of the valve to spray paint on the valve.

Preferably, each fixing head is respectively matched with the caliber of the valve and respectively extends into the corresponding caliber of the valve to clamp and fix the valve and drive the valve to vertically and longitudinally rotate.

Preferably, each moving mechanism comprises a first side plate, a rack, a sliding rail, a second side plate, a bottom plate and a clamping plate; a first side plate and a second side plate are vertically and longitudinally arranged on the left side and the right side of the bottom of each driving chamber at intervals, and each first side plate and the corresponding second side plate are respectively and fixedly connected with the inner bottom surface of the box body in a vertical mode; a rack is horizontally and transversely arranged in the middle between each first side plate and the corresponding second side plate, the tooth surface of each rack is arranged towards the front surface of the box body, two ends of each rack are fixedly connected with the corresponding first side plate and the corresponding second side plate respectively, and a plurality of rib plates for supporting the racks are sequentially and vertically arranged between the lower surface of each rack and the inner bottom surface of the box body at intervals along the length direction of the rack; two sliding rails are respectively arranged on the front side and the rear side of the right above each rack at a horizontal interval, two ends of each sliding rail are respectively fixedly connected with the corresponding side face corresponding to the partition board and the corresponding inner side face of the box body, and two ends of the lower surface of each sliding rail are respectively fixedly connected with the upper surfaces corresponding to the first side plate and the second side plate; a bottom plate is horizontally arranged above each rack at intervals, and each bottom plate is respectively horizontally arranged above the corresponding slide rail at intervals and is respectively horizontally and transversely connected with the corresponding slide rail in a sliding manner; and one side of the upper surface of each bottom plate, which is close to the paint spray booth, is also vertically and longitudinally provided with a clamping plate, and the lower end of each clamping plate is fixedly connected with the corresponding bottom plate in a threaded manner and respectively moves horizontally and transversely in the corresponding driving chamber along with the bottom plate.

Preferably, the device also comprises a first motor, a first gear and a gear shaft; the side, far away from the spray booth, of the upper surface of each bottom plate is also respectively and vertically fixedly provided with a first motor, and the output end of each first motor respectively extends vertically downwards to correspond to the bottom plate and is respectively in linkage connection with the corresponding first gear through a gear shaft; each first gear is horizontally arranged between the corresponding two sliding rails respectively, and the arrangement position of each first gear corresponds to the arrangement position of the corresponding rack; through the meshing fit of the first gear and the corresponding rack, the bottom plate respectively makes horizontal transverse motion on the corresponding slide rail.

Preferably, four right angles of the lower surface of each bottom plate are respectively and horizontally and symmetrically fixedly provided with a sliding block, each sliding block is respectively sleeved on the corresponding sliding rail, and each bottom plate is respectively in horizontal and transverse sliding connection with the corresponding sliding rail through the sliding block.

Preferably, each of the rotating mechanisms comprises a second motor, a rotating rod, a master gear and a slave gear; a bearing is vertically embedded in the position above the center of each clamping plate, a rotating rod is horizontally sleeved in each bearing coaxially, one end, far away from the paint spraying chamber, of each rotating rod horizontally extends to correspond to the clamping plate, one end, close to the paint spraying chamber, of each rotating rod horizontally extends to the middle position in the paint spraying chamber, and the rotating rod is rotatably connected with the corresponding partition plate; one end of each rotating rod, which is close to the paint spraying chamber, is respectively fixed with the corresponding fixed head in a threaded manner, and the corresponding fixed heads are respectively driven by the corresponding moving mechanisms to horizontally and transversely move; a part, which exceeds the corresponding clamping plate, of one end of each rotating rod, which is far away from the paint spraying chamber, is also fixedly provided with a driven gear in a coaxial sleeve manner, and each driven gear is arranged with the corresponding clamping plate and the moving mechanism in a non-interfering manner; each the upper end of the clamping plate is horizontally and transversely provided with a second motor, each output end of the second motor is horizontally and transversely arranged towards the direction far away from the paint spraying chamber, and is respectively connected with the corresponding slave gear through the main gear in a meshed manner, and respectively drives the corresponding rotating rod to vertically and longitudinally rotate, and further respectively drives the corresponding fixing head to vertically and longitudinally rotate.

Preferably, the paint spraying assembly comprises a paint spraying box, a booster pump, a paint spraying pipe and a paint spraying head; a paint spraying box is further arranged at the upper position in one driving chamber on the right side, and the paint spraying box is fixedly connected with the inner top surface of the box body and is arranged in a manner of not interfering with the rotating mechanism and the moving mechanism respectively; the paint spraying box is communicated with one end of the paint spraying pipe through a booster pump, and the other end of the paint spraying pipe horizontally moves to a position above the middle in the paint spraying chamber and is spliced with the right side face of one partition board on the left; the spray painting pipes in the spray painting chamber are arranged right above the valve at intervals and do not interfere with the rotation of the valve; still be equipped with several spray painting head, each from a left side to the right side interval installation in proper order on the spray painting pipe the spray painting head all sets up in the spray booth, and set up towards valve direction slope respectively to carry out the operation of spraying paint to the valve respectively.

Preferably, the air supply device also comprises an air supply box, a main air pipe, a distribution pipe and an air nozzle; an air supply box is further arranged in the middle of the upper surface of the box body, the output end of the air supply box is communicated with the upper end of the main air pipe in a sealing mode, and the lower end of the main air pipe vertically extends downwards to the upper middle position in the paint spraying chamber; a plurality of distributing pipes are horizontally and sequentially arranged in the upper position in the paint spraying chamber from front to back at intervals, and each distributing pipe is arranged above the paint spraying pipe in the paint spraying chamber at intervals and is not interfered with the paint spraying pipe; two ends of each distribution pipe are respectively and fixedly connected with corresponding side surfaces of the two partition plates, and the lower ends of the main air pipes are respectively communicated with the middle position of the upper surface of each distribution pipe in a sealing manner; each the lower surface of distributing pipe still is equipped with the several jet-propelled head from a left side to the right interval in proper order, and each the jet-propelled head all sets up vertically downwards to spout hot-blastly towards the paint spray booth through the air supply box respectively.

Preferably, the device also comprises a conical cylinder, a discharge pipe and a sealing cover; a conical barrel is vertically sleeved at a lower position in the paint spraying chamber and is arranged right below the valve, and interference to the rotation of the valve is avoided; the upper end of the conical cylinder is a large-diameter end and is respectively connected with the front inner side surface and the rear inner side surface of the box body and the corresponding side surfaces of the two partition plates in a sealing manner; an anti-sticking layer is attached to the inner conical surface of the conical barrel and made of Teflon; the lower extreme and the vertical setting of a toper section of thick bamboo arrange the sealed intercommunication in row material pipe upper end, just arrange the vertical embedding setting of material pipe and be in the lower surface of box corresponds position department, the lower extreme of arranging the material pipe is vertical to be extended downwards the lower surface of box, and still cup joint above that and be equipped with sealed lid to sealed spiro union each other.

Preferably, four right angles of the lower surface of the box body are also vertically and symmetrically provided with supporting legs, the discharge pipe is arranged in a square area surrounded by the supporting legs, and the lower surface of the sealing cover is arranged above a horizontal plane where the lower ends of the supporting legs are located at four intervals.

The utility model has the advantages that:

(1) the utility model can fix the valve on the two fixed heads and rotate along with the fixed heads through the matching use of the moving mechanism, the rotating mechanism and the fixed heads, thereby realizing all-round uniform paint spraying, and improving the paint spraying efficiency and the paint spraying effect;

(2) the utility model is convenient for recovering the paint dropping in the paint spraying process by the matching use of the conical cylinder, the discharge pipe and the anti-sticking layer;

(3) the utility model discloses a cooperation of supply-air box, main trachea, distributing pipe and jet-propelled head is used, can push down the coating cloud that produces among the paint spraying process, and the rethread is arranged the material pipe and is retrieved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural view of a paint spraying apparatus for a valve according to the present invention.

Fig. 2 is a view a-a of fig. 1.

Wherein, 1-a box body; 2-a separator; 3-a support leg; 4-a first motor; 5-a first side plate; 6-a rack; 7-a slide rail; 8-a slide block; 9-a second side plate; 10-a first gear; 11-gear shaft; 12-a base plate; 13-a splint; 14-rotating rods; 15-a fixed head; 16-a second electric machine; 17-a main gear; 18-a slave gear; 19-a paint spray box; 20-a booster pump; 21-a paint spray pipe; 22-paint spray head; 23-air supply box; 24-main trachea; 25-a distribution pipe; 26-a gas jet head; 27-a conical cylinder; 28-a discharge pipe; 29-sealing cover.

Detailed Description

The technical solution of the present invention will be described clearly and completely through the following detailed description.

The utility model relates to a paint spraying device for a valve, which comprises a box body 1, a clapboard 2, a moving mechanism, a rotating mechanism, a fixed head 15 and a paint spraying component; the specific structure is as shown in fig. 1, the box body 1 is a hollow cuboid structure which is horizontally arranged, the inside of the box body is vertically and longitudinally provided with the partition boards 2 which are matched with the box body in a bilateral symmetry mode, and the inside of the box body 1 is divided into a paint spraying chamber and driving chambers which are bilateral symmetry through the partition boards 2; each driving chamber is also provided with a moving mechanism, the two moving mechanisms are symmetrically arranged, and the moving directions of the moving ends of the moving mechanisms are horizontally and transversely arranged; each moving mechanism comprises a first side plate 5, a rack 6, a sliding rail 7, a second side plate 9, a bottom plate 12, a clamping plate 13, a first motor 4, a first gear 10 and a gear shaft 11; as shown in fig. 1 and 2, a first side plate 5 and a second side plate 9 are vertically and longitudinally arranged at intervals on the left side and the right side of the bottom of each driving chamber, and each first side plate 5 and the corresponding second side plate 9 are respectively and fixedly connected with the inner bottom surface of the box body 1; a rack 6 is horizontally and transversely arranged in the middle between each first side plate 5 and the corresponding second side plate 9, the tooth surface of each rack 6 is arranged towards the front surface of the box body 1, two ends of each rack 6 are fixedly connected with the corresponding first side plate 5 and the corresponding second side plate 9, and a plurality of rib plates for supporting the racks 6 are vertically arranged between the lower surface of each rack 6 and the inner bottom surface of the box body 1 at intervals along the length direction of the rack; two sliding rails 7 are respectively horizontally and transversely arranged on the front side and the rear side right above each rack 6 at intervals, two ends of each sliding rail 7 are respectively and fixedly connected with the corresponding side surface of the corresponding partition plate 2 and the corresponding inner side surface of the box body 1, and two ends of the lower surface of each sliding rail 7 are respectively and fixedly connected with the upper surfaces of the corresponding first side plate 5 and the second side plate 9;

as shown in fig. 1 and 2, a bottom plate 12 is further horizontally arranged above each rack 6 at intervals, and each bottom plate 12 is respectively horizontally arranged above the corresponding slide rail 7 at intervals and is respectively horizontally and transversely connected with the corresponding slide rail 7 in a sliding manner; the side, far away from the spray booth, of the upper surface of each bottom plate 12 is also respectively and vertically fixedly provided with a first motor 4, and the output end of each first motor 4 respectively vertically extends downwards to form a corresponding bottom plate 12 and is respectively in linkage connection with a corresponding first gear 10 through a gear shaft 11; each first gear 10 is horizontally arranged between the corresponding two slide rails 7 respectively, and the arrangement position of each first gear corresponds to the arrangement position of the corresponding rack 6; through the meshing fit of the first gear 10 and the corresponding rack 6, the bottom plates 12 respectively make horizontal and transverse movement on the corresponding slide rails 7.

As shown in fig. 1 and 2, four corners of the lower surface of each bottom plate 12 are respectively and horizontally and symmetrically fixedly provided with a sliding block 8, each sliding block 8 is respectively sleeved on a corresponding sliding rail 7, and each bottom plate 12 is respectively connected with the corresponding sliding rail 7 in a horizontal and transverse sliding manner through the sliding block 8. The utility model discloses be close to spray booth one side at the upper surface of each bottom plate 12 and still vertically be equipped with splint 13, and the lower extreme of each splint 13 respectively with correspond bottom plate 12 spiro union fixed to do horizontal transverse motion in corresponding the drive chamber along with bottom plate 12 respectively.

The utility model is also provided with a rotating mechanism at the upper end of each clamping plate 13, and each rotating mechanism is arranged in the corresponding driving chamber; wherein each rotating mechanism comprises a second motor 16, a rotating rod 14, a main gear 17 and a driven gear 18; as shown in fig. 1, a bearing is further vertically embedded in the upper center of each clamping plate 13, a rotating rod 14 is further horizontally sleeved in each bearing coaxially, one end of each rotating rod 14, which is far away from the paint spray booth, extends horizontally and transversely to the corresponding clamping plate 13, and one end of each rotating rod 14, which is close to the paint spray booth, extends horizontally and transversely to the middle position in the paint spray booth and is rotatably connected with the corresponding partition plate 2; one end of each rotating rod 14 close to the spray booth is fixedly screwed with the corresponding fixed head 15, and the corresponding fixed heads 15 are driven by the corresponding moving mechanisms to horizontally and transversely move; a part of one end of each rotating rod 14, which is far away from the paint spraying chamber and exceeds the corresponding clamping plate 13, is also coaxially sleeved and fixedly provided with a driven gear 18, and each driven gear 18 is arranged with the corresponding clamping plate 13 and the moving mechanism without mutual interference;

as shown in fig. 1, a second motor 16 is further horizontally and transversely disposed at the upper end of each clamping plate 13, an output end of each second motor 16 is horizontally and transversely disposed in a direction away from the spray booth, and is respectively engaged with a corresponding driven gear 18 through a main gear 17, and drives the corresponding rotating rod 14 to vertically and longitudinally rotate, and further drives the corresponding fixing head 15 to vertically and longitudinally rotate. Each fixing head 15 is respectively matched with the caliber of the valve and respectively extends into the corresponding caliber of the valve to clamp and fix the valve and drive the valve to vertically and longitudinally rotate.

The paint spraying component is arranged at the upper position in the paint spraying chamber, and the paint spraying end of the paint spraying component is arranged towards the direction of the valve to spray paint to the valve; wherein, the paint spraying component comprises a paint spraying box 19, a booster pump 20, a paint spraying pipe 21 and a paint spraying head 22; as shown in fig. 1, a paint spraying box 19 is further arranged at an upper position in the right driving chamber, and the paint spraying box 19 is fixedly connected with the inner top surface of the box body 1 and is arranged without interfering with the corresponding rotating mechanism and the moving mechanism respectively; the paint spraying box 19 is communicated with one end of a paint spraying pipe 21 through a booster pump 20, and the other end of the paint spraying pipe 21 horizontally moves to the upper middle position in the paint spraying chamber and is spliced with the right side surface of the left partition plate 2; the paint spraying pipes 21 in the paint spraying chamber are arranged right above the valve at intervals and do not interfere with the rotation of the valve; still be equipped with several spray paint head 22 from a left side to the right side interval installation in proper order on the pipe 21 that sprays paint, each spray paint head 22 all sets up in the paint spray booth, and sets up towards the slope of valve direction respectively to carry out the operation of spraying paint to the valve respectively.

The utility model is also provided with an air supply box 23 in the middle of the upper surface of the box body 1, as shown in figure 1, the output end of the air supply box 23 is hermetically communicated with the upper end of the main air pipe 24, and the lower end of the main air pipe 24 vertically extends downwards to the upper position in the middle of the paint spray chamber; a plurality of distributing pipes 25 are horizontally and sequentially arranged in the upper position in the paint spraying chamber from front to back at intervals, and each distributing pipe 25 is arranged above the paint spraying pipe 21 in the paint spraying chamber at intervals and is not interfered with the paint spraying pipe 21; two ends of each distribution pipe 25 are respectively fixedly connected with corresponding side surfaces of the two partition plates 2, and the lower end of the main air pipe 24 is respectively communicated with the middle position of the upper surface of each distribution pipe 25 in a sealing way; a plurality of air nozzles 26 are sequentially arranged on the lower surface of each distribution pipe 25 from left to right at intervals, each air nozzle 26 is vertically arranged downwards, and hot air is sprayed out of the paint spraying chamber through the air supply box 23. The utility model discloses a cooperation of supply-air box 23, main trachea 24, distributing pipe 25 and air nozzle 26 is used, can push down the coating cloud that produces among the painting process, and row's material pipe 28 is arranged to the rethread is retrieved.

The utility model is also vertically sleeved with a conical cylinder 27 at the lower position in the paint spraying chamber, and the conical cylinder 27 is arranged under the valve and does not interfere the rotation of the valve; as shown in fig. 1, the upper end of the conical cylinder 27 is a large-diameter end and is hermetically connected with the front and rear inner side surfaces of the box body 1 and the corresponding side surfaces of the two partition plates 2; an anti-sticking layer is also attached to the inner conical surface of the conical barrel 27 and made of Teflon; the lower extreme of a cone 27 and the sealed intercommunication in row material pipe 28 upper end of vertical setting, and arrange the vertical embedding of material pipe 28 and set up in the lower surface of box 1 and correspond position department, arrange the lower extreme of material pipe 28 and vertically extend the lower surface of box 1 downwards, and still cup joint on it and be equipped with sealed lid 29 to sealed spiro union each other. The utility model discloses a cooperation of a toper section of thick bamboo 27, row's material pipe 28 and antiseized layer is used, is convenient for retrieve the paint that drips among the paint spraying process.

As shown in fig. 1, the supporting legs 3 are also vertically and symmetrically arranged at four right angles of the lower surface of the box body 1, the discharging pipe 28 is arranged in a square area surrounded by the four supporting legs 3, and the lower surfaces of the sealing covers 29 are arranged above the horizontal plane where the lower ends of the four supporting legs 3 are located at intervals, so that an operation space is reserved and the discharging pipe 28 is convenient to recycle.

The utility model discloses a theory of operation: firstly, under the driving of a first motor 4, a first gear 10 is meshed with a corresponding rack 6, and a rotating rod 14 drives a corresponding fixed head 15 to horizontally and transversely move so as to clamp and fix a valve; when in use, under the driving of the second motor 16, the main gear 17 is engaged with the corresponding slave gear 18, and the rotating rod 14 drives the fixed head 15 to vertically and longitudinally rotate so as to drive the valve to rotate; in this process, the valve is uniformly painted through the paint spray head 22; after the painting is finished, the air nozzle 26 sprays hot air into the painting chamber, paint mist generated in the painting process is pressed downwards, and then dropped paint is recovered through the matching use of the conical cylinder 27 and the discharge pipe 28.

The utility model has the advantages that:

(1) the utility model can fix the valve on the two fixed heads 15 by matching the moving mechanism, the rotating mechanism and the fixed heads 15, and rotate along with the fixed heads 15, thereby realizing all-round uniform paint spraying, and improving the paint spraying efficiency and the paint spraying effect;

(2) the utility model is convenient for recovering the paint dropping in the paint spraying process by the matching use of the conical cylinder 27, the discharge pipe 28 and the anti-sticking layer;

(3) the utility model discloses a cooperation of supply-air box 23, main trachea 24, distributing pipe 25 and air nozzle 26 is used, can push down the coating cloud that produces among the painting process, and row's material pipe 28 is arranged to the rethread is retrieved.

The above-mentioned embodiments are only described as the preferred embodiments of the present invention, and are not intended to limit the concept and scope of the present invention, and the technical content of the present invention, which is claimed by the present invention, is fully recorded in the technical claims.

Claims

1. The paint spraying device for the valve is characterized in that: comprises a box body, a clapboard, a moving mechanism, a rotating mechanism, a fixed head and a paint spraying assembly; the box body is of a horizontally arranged hollow cuboid structure, partition plates matched with the box body are vertically and longitudinally arranged in the box body in a bilateral symmetry mode, and the interior of the box body is divided into a spray booth and driving rooms in bilateral symmetry mode through the partition plates; each driving chamber is also internally provided with a moving mechanism, the two moving mechanisms are symmetrically arranged, the moving directions of the moving ends of the moving mechanisms are horizontally and transversely arranged, and the moving ends of the moving mechanisms are also provided with rotating mechanisms respectively; each rotating mechanism is arranged in the corresponding driving chamber, and the rotating end of each rotating mechanism horizontally and transversely extends to the middle position in the paint spraying chamber and is connected with the corresponding fixing head respectively to drive the corresponding fixing head to vertically and longitudinally rotate; the valve is clamped and fixed by the two fixing heads and vertically and longitudinally rotates along with the fixing heads; the upper position in the paint spraying chamber is provided with a paint spraying assembly, and the paint spraying end of the paint spraying assembly is arranged towards the direction of the valve to spray paint on the valve.

2. A paint spraying apparatus for a valve according to claim 1, characterised in that: each fixing head is respectively matched with the caliber of the valve and respectively extends into the corresponding caliber of the valve to clamp and fix the valve and drive the valve to vertically and longitudinally rotate.

3. A paint spraying apparatus for a valve according to claim 1, characterised in that: each moving mechanism comprises a first side plate, a rack, a sliding rail, a second side plate, a bottom plate and a clamping plate; a first side plate and a second side plate are vertically and longitudinally arranged on the left side and the right side of the bottom of each driving chamber in a spaced and symmetrical mode, and each first side plate and the corresponding second side plate are respectively and fixedly connected with the inner bottom surface of the box body in a perpendicular mode; a rack is horizontally and transversely arranged in the middle between each first side plate and the corresponding second side plate, the tooth surface of each rack is arranged towards the front surface of the box body, two ends of each rack are fixedly connected with the corresponding first side plate and the corresponding second side plate respectively, and a plurality of rib plates for supporting the racks are sequentially and vertically arranged between the lower surface of each rack and the inner bottom surface of the box body at intervals along the length direction of the rack; two sliding rails are respectively arranged on the front side and the rear side of the right above each rack at a horizontal interval, two ends of each sliding rail are respectively fixedly connected with the corresponding side face corresponding to the partition board and the corresponding inner side face of the box body, and two ends of the lower surface of each sliding rail are respectively fixedly connected with the upper surfaces corresponding to the first side plate and the second side plate; a bottom plate is horizontally arranged above each rack at intervals, and each bottom plate is respectively horizontally arranged above the corresponding slide rail at intervals and is respectively horizontally and transversely connected with the corresponding slide rail in a sliding manner; and one side of the upper surface of each bottom plate, which is close to the paint spray booth, is also vertically and longitudinally provided with a clamping plate, and the lower end of each clamping plate is fixedly connected with the corresponding bottom plate in a threaded manner and respectively moves horizontally and transversely in the corresponding driving chamber along with the bottom plate.

4. A paint spraying apparatus for a valve according to claim 3, characterised in that: the first motor, the first gear and the gear shaft are all arranged; the side, far away from the spray booth, of the upper surface of each bottom plate is also respectively and vertically fixedly provided with a first motor, and the output end of each first motor respectively extends vertically downwards to correspond to the bottom plate and is respectively in linkage connection with the corresponding first gear through a gear shaft; each first gear is horizontally arranged between the corresponding two sliding rails respectively, and the arrangement position of each first gear corresponds to the arrangement position of the corresponding rack; through the meshing fit of the first gear and the corresponding rack, the bottom plate respectively makes horizontal transverse motion on the corresponding slide rail.

5. A paint spraying apparatus for a valve according to claim 4, characterised in that: and four right angles of the lower surface of each bottom plate are respectively and horizontally and symmetrically fixedly provided with sliding blocks, each sliding block is respectively sleeved on the corresponding sliding rail, and each bottom plate is respectively connected with the corresponding sliding rail in a horizontal and transverse sliding mode through the sliding blocks.

6. A paint spraying apparatus for a valve according to claim 3, characterised in that: each rotating mechanism comprises a second motor, a rotating rod, a main gear and a driven gear; a bearing is vertically embedded in the position above the center of each clamping plate, a rotating rod is horizontally sleeved in each bearing coaxially, one end, far away from the paint spraying chamber, of each rotating rod horizontally extends to correspond to the clamping plate, one end, close to the paint spraying chamber, of each rotating rod horizontally extends to the middle position in the paint spraying chamber, and the rotating rod is rotatably connected with the corresponding partition plate; one end of each rotating rod, which is close to the paint spraying chamber, is respectively fixed with the corresponding fixed head in a threaded manner, and the corresponding fixed heads are respectively driven by the corresponding moving mechanisms to horizontally and transversely move; a part, which exceeds the corresponding clamping plate, of one end of each rotating rod, which is far away from the paint spraying chamber, is also fixedly provided with a driven gear in a coaxial sleeve manner, and each driven gear is arranged with the corresponding clamping plate and the moving mechanism in a non-interfering manner; each the upper end of the clamping plate is horizontally and transversely provided with a second motor, each output end of the second motor is horizontally and transversely arranged towards the direction far away from the paint spraying chamber, and is respectively connected with the corresponding slave gear through the main gear in a meshed manner, and respectively drives the corresponding rotating rod to vertically and longitudinally rotate, and further respectively drives the corresponding fixing head to vertically and longitudinally rotate.

7. A paint spraying apparatus for a valve according to claim 1, characterised in that: the paint spraying assembly comprises a paint spraying box, a booster pump, a paint spraying pipe and a paint spraying head; a paint spraying box is further arranged at the upper position in one driving chamber on the right side, and the paint spraying box is fixedly connected with the inner top surface of the box body and is arranged in a manner of not interfering with the rotating mechanism and the moving mechanism respectively; the paint spraying box is communicated with one end of the paint spraying pipe through a booster pump, and the other end of the paint spraying pipe horizontally moves to a position above the middle in the paint spraying chamber and is spliced with the right side face of one partition board on the left; the spray painting pipes in the spray painting chamber are arranged right above the valve at intervals and do not interfere with the rotation of the valve; still be equipped with several spray painting head, each from a left side to the right side interval installation in proper order on the spray painting pipe the spray painting head all sets up in the spray booth, and set up towards valve direction slope respectively to carry out the operation of spraying paint to the valve respectively.

8. A paint spraying apparatus for a valve as claimed in claim 7, wherein: the air supply box, the main air pipe, the distribution pipe and the air nozzle are also included; an air supply box is further arranged in the middle of the upper surface of the box body, the output end of the air supply box is communicated with the upper end of the main air pipe in a sealing mode, and the lower end of the main air pipe vertically extends downwards to the upper middle position in the paint spraying chamber; a plurality of distributing pipes are horizontally and sequentially arranged in the upper position in the paint spraying chamber from front to back at intervals, and each distributing pipe is arranged above the paint spraying pipe in the paint spraying chamber at intervals and is not interfered with the paint spraying pipe; two ends of each distribution pipe are respectively and fixedly connected with corresponding side surfaces of the two partition plates, and the lower ends of the main air pipes are respectively communicated with the middle position of the upper surface of each distribution pipe in a sealing manner; each the lower surface of distributing pipe still is equipped with the several jet-propelled head from a left side to the right interval in proper order, and each the jet-propelled head all sets up vertically downwards to spout hot-blastly towards the paint spray booth through the air supply box respectively.

9. A paint spraying apparatus for a valve according to claim 1, characterised in that: also comprises a conical cylinder, a discharge pipe and a sealing cover; a conical barrel is vertically sleeved at a lower position in the paint spraying chamber and is arranged right below the valve, and interference to the rotation of the valve is avoided; the upper end of the conical cylinder is a large-diameter end and is respectively connected with the front inner side surface and the rear inner side surface of the box body and the corresponding side surfaces of the two partition plates in a sealing manner; an anti-sticking layer is attached to the inner conical surface of the conical barrel and made of Teflon; the lower extreme and the vertical setting of a toper section of thick bamboo arrange the sealed intercommunication in row material pipe upper end, just arrange the vertical embedding setting of material pipe and be in the lower surface of box corresponds position department, the lower extreme of arranging the material pipe is vertical to be extended downwards the lower surface of box, and still cup joint above that and be equipped with sealed lid to sealed spiro union each other.

10. A paint spraying apparatus for a valve as claimed in claim 9, wherein: four right angles of the lower surface of the box body are also vertically and symmetrically provided with supporting legs, the material discharging pipe is arranged in four square areas surrounded by the supporting legs, and the lower surface of the sealing cover is arranged above a horizontal plane where the lower ends of the supporting legs are located at four intervals.