阅读说明：本技术 一种蝶阀阀板喷漆的方法 (Method for spraying paint on valve plate of butterfly valve ) 是由 姚心 于 2021-08-17 设计创作，主要内容包括：本发明属于阀体制造领域,尤其是涉及一种蝶阀阀板喷漆的方法,其蝶阀阀板喷漆的方法对蝶阀阀板喷漆过程中还具体涉及到一种蝶阀阀板喷漆的装置,该一种蝶阀阀板喷漆的装置包括外壳,外壳内设有一侧开口的工作空间,外壳内靠近工作空间开口处关于工作空间的开口对称设有两个活动腔,工作空间内靠近开口处设有喷漆机构,工作空间内远离开口处设有定位控制机构,第一弧形密封板与第二弧形密封板绕第二转动销旋转,将阀板撑起固定,不仅可以对阀板进行固定,还可以防止油漆溅到阀板的孔内,通过该方法及该装置可以有效防止油漆下流或油漆进入到阀板的孔内。(The invention belongs to the field of valve body manufacturing, and particularly relates to a method for painting a butterfly valve plate, in the process of painting the butterfly valve plate by the method for painting the butterfly valve plate, a device for painting the butterfly valve plate is also particularly related, the device for spraying paint on the valve plate of the butterfly valve comprises a shell, a working space with an opening at one side is arranged in the shell, two movable cavities are symmetrically arranged in the shell close to the opening of the working space and around the opening of the working space, a paint spraying mechanism is arranged in the working space close to the opening, a positioning control mechanism is arranged in the working space far away from the opening, a first arc-shaped sealing plate and a second arc-shaped sealing plate rotate around a second rotating pin to prop up and fix the valve plate, so that the valve plate can be fixed, paint can be prevented from splashing into the hole of the valve plate, by the method and the device, paint can be effectively prevented from flowing down or entering the hole of the valve plate.)

1. A method for painting a valve plate of a butterfly valve is characterized by comprising the following steps: the device for spraying the paint on the butterfly valve plate comprises a shell (10), a working space (24) with one side open is arranged in the shell (10), two movable cavities (22) are symmetrically arranged at the opening of the working space (24) close to the opening of the working space (24) in the shell (10), a paint spraying mechanism (90) is arranged at the opening of the working space (24) close to the opening, and a positioning control mechanism (91) is arranged at the opening of the working space (24) far away from the opening.

2. The method for painting a valve plate of a butterfly valve according to claim 1, wherein: the positioning control mechanism (91) comprises a cylinder wall (31) fixed on the inner wall of the working space (24) far away from the opening, a piston rod (29) is arranged in the cylinder wall (31) in a sliding mode, a support plate (27) is fixedly arranged at the end, far away from the cylinder wall (31), of the piston rod (29), a limiting groove (28) penetrating through the support plate (27) along the connecting line direction of the two movable cavities (22) is formed in the support plate, and a small protrusion is arranged at one end of the limiting groove (28).

3. The method for painting a valve plate of a butterfly valve according to claim 2, wherein: the positioning control mechanism (91) further comprises two air holes (33) symmetrically arranged in the cylinder wall (31) relative to the piston rod (29), two sliding plates (14) symmetrically and slidably arranged in the working space (24) relative to the piston rod (29), each sliding plate (14) is connected to the inner wall of the working space (24) provided with the movable cavity (22) through a return spring (12), telescopic pipes (13) are fixedly arranged on two sides of the cylinder wall (31) provided with the air holes (33), each telescopic pipe (13) is communicated with the corresponding telescopic pipe (13), the other end of each telescopic pipe (13) is fixed on the corresponding sliding plate (14), the end of each sliding plate (14) close to the movable cavity (22) is fixedly provided with a driving rack (15), and the inner wall of each movable cavity (22) is rotatably provided with a gear shaft (18), every all fixed gear (17) that is equipped with on gear shaft (18), initiative rack (15) with gear (17) meshing is connected, every activity chamber (22) all are equipped with slide opening (20) on being close to the inner wall of workspace (24), every all slide in slide opening (20) and be equipped with driven rack (19), driven rack (19) are connected with the meshing gear (17) are kept away from initiative rack (15) side, every all fixed bracing piece (21) that is equipped with on driven rack (19).

4. A method of painting a butterfly valve plate according to claim 3, characterised in that: the paint spraying mechanism (90) comprises power rods (23) which are fixedly arranged on the support rods (21) and far away from the end of the driven rack (19), rotary motors (36) are embedded at the ends, close to the piston rods (29), of the power rods (23), positioning blocks (37) are fixedly arranged on the self-carrying shafts of the rotary motors (36), eight sliding grooves (45) are uniformly formed in each positioning block (37) in a shape changing mode, first groove rods (39) are arranged in the four spaced sliding grooves (45) in a sliding mode, in addition, first groove rods (47) are arranged in the four sliding grooves (45) in a sliding mode, a first supporting plate (38) is fixedly arranged at the end, close to the rotating motor (36), of each of the four first groove rods (39), and a second supporting plate (40) is fixedly arranged at the end, close to the rotating motor (36), of each of the four first groove rods (47).

5. The method for painting a valve plate of a butterfly valve according to claim 4, wherein: mechanism (90) of spraying paint still includes every all rotate first arc closing plate (41) that sets up on first recess pole (39), every all rotate on first recess pole (47) and be equipped with second arc closing plate (48), every first arc closing plate (41) and every second arc closing plate (48) are close to first recess pole (39) side all is fixed and is equipped with two first rotating pin (42), every all rotate on first rotating pin (42) and be equipped with a dwang (43), every the other end of dwang (43) all rotates and is equipped with a second rotating pin (49), every second rotating pin (49) all are fixed correspond on the inner wall of first recess pole (39) and second arc closing plate (48).

6. The method for painting a valve plate of a butterfly valve according to claim 4, wherein: the paint spraying mechanism (90) further comprises a paint spraying cover (25) fixedly arranged on the inner wall of the working space (24) close to the opening, the paint spraying cover (25) is coaxial with the piston rod (29), a positioning hole (46) is formed in the position, corresponding to the positioning block (37), of the paint spraying cover (25), the paint spraying cover (25) is close to the side of the second supporting plate (40) and surrounds the positioning hole (46) in an annular mode, eight ejector blocks (44) are uniformly arranged on the inner wall of the paint spraying cover (25), a spray head (30) and a dryer (11) are arranged on the inner wall of the paint spraying cover (25), the spray head (30) and the dryer (11) are symmetrical about the piston rod (29), the dryer (11) is perpendicular to a connecting line of the spray head (30) and connecting lines of the two positioning blocks (37), a paint pipe (34) is fixedly arranged on the side of the piston rod (29) in a deviating mode, a hot air pipe (16) is fixedly arranged on the side of the dryer (11) deviating from the piston rod (29), the paint pipe (34) and the hot air pipe (16) both penetrate through the paint spraying cover (25) and the shell (10).

7. The method for painting a valve plate of a butterfly valve according to claims 1 to 6, characterized in that: the method comprises the following steps:

s1: limiting, namely putting the axial direction of the valve plate hole on the carrier plate (27) along the direction of a limiting groove (28), and enabling one end of the valve plate to abut against a small bulge in the limiting groove (28);

s2: positioning, wherein a piston rod (29) drives a carrier plate (27) to move until a hole of a valve plate is concentric with two positioning blocks (37), and the two positioning blocks (37) are inserted into the hole of the valve plate;

s3: fixing, wherein the piston rod (29) continues to slide, so that the positioning block (37) continues to slide towards the valve plate hole, and the first arc-shaped sealing plate (41) and the second arc-shaped sealing plate (48) are supported to fix the valve plate;

s4: spraying paint, starting two rotating motors (36) simultaneously to drive the valve plate to rotate, so that the paint sprayed by the spray head (30) is uniformly attached to the valve plate;

s5: drying, namely opening the dryer (11) after closing the spray head (30) and drying the paint on the valve plate;

s6: resetting, and dragging the valve plate sprayed with paint out of the working space (24) through the carrier plate (27).

Technical Field

The invention belongs to the field of valve body manufacturing, and particularly relates to a method for painting a valve plate of a butterfly valve.

Background

The butterfly valve is also called a flap valve and is a simple regulating valve, mainly comprises a valve body, a valve rod, a valve plate and a sealing ring, and usually, in order to carry out rust-proof protection on the valve plate, the valve plate is subjected to paint dipping after being processed, the existing paint dipping method usually enables paint to flow up and down on the valve plate, so that paint flowing marks and paint particles are caused, and a through hole of the valve plate is usually blocked during paint dipping, so that the paint is prevented from entering and affecting the precision of a workpiece.

Disclosure of Invention

The invention aims to solve the problems in the prior art and provides a method for painting a valve plate of a butterfly valve, which can prevent paint on the valve plate from flowing downwards when the valve plate is painted.

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

the device for spraying paint on the butterfly valve plate comprises a shell, a working space with one side open is arranged in the shell, two movable cavities are symmetrically arranged in the shell close to the opening of the working space, a paint spraying mechanism is arranged in the working space close to the opening, and a positioning control mechanism is arranged in the working space far away from the opening.

Preferably, the positioning control mechanism comprises a cylinder wall fixed on the inner wall of the working space far away from the opening, a piston rod is arranged in the cylinder wall in a sliding mode, a support plate is fixedly arranged on the piston rod far away from the cylinder wall, a limiting groove penetrating through the support plate along the connecting line direction of the two movable cavities is formed in the support plate, and a small protrusion is arranged at one end of the limiting groove.

Preferably, the positioning control mechanism further comprises two air holes symmetrically arranged in the cylinder wall with respect to the piston rod, two sliding plates are symmetrically and slidably arranged in the working space with respect to the piston rod, each sliding plate is connected to the inner wall of the working space with the movable cavity through a return spring, telescopic pipes are fixedly arranged on two sides of the cylinder wall with the air holes, each telescopic pipe is communicated with the corresponding telescopic pipe, the other end of each telescopic pipe is fixed to the corresponding sliding plate, an active rack is fixedly arranged at the end, close to the movable cavity, of each sliding plate, a gear shaft is rotatably arranged on the inner wall of each movable cavity, a gear is fixedly arranged on each gear shaft, the active rack is connected with the gears in a meshed manner, a sliding hole is arranged on the inner wall, close to the working space, of each movable cavity, and a driven rack is slidably arranged in each sliding hole, the driven rack is connected with the gear in a meshed mode and far away from the side of the driving rack, and each driven rack is fixedly provided with a supporting rod.

Preferably, the mechanism of spraying paint includes every keep away from on the bracing piece the fixed power rod that sets up of driven rack end, every the power rod is close to the tailpiece of the piston rod all inlays and is equipped with the rotation motor, every the epaxial fixed locating piece that is equipped with of taking of rotation motor, every all reform transform on the locating piece and evenly be equipped with eight spouts, four spaced all slide in the spout and be equipped with first recess pole, four in addition all slide in the spout and be equipped with first recess pole, four first recess pole is close to the rotation motor end is fixed jointly and is equipped with a first layer board, four first recess pole is close to the rotation motor end is fixed jointly and is equipped with the second layer board.

Preferably, the mechanism of spraying paint still includes every all rotate the first arc closing plate that sets up on the first recess pole, every all rotate on the first recess pole and be equipped with second arc closing plate, every first arc closing plate and every the second arc closing plate is close to first recess pole side all is fixed and is equipped with two first rotating pin, every all rotate on the first rotating pin and be equipped with a dwang, every the other end of dwang all rotates and is equipped with a second rotating pin, every the second rotating pin all is fixed and is corresponded on the inner wall of first recess pole and second arc closing plate.

Preferably, the paint spraying mechanism further comprises a paint spraying cover fixedly arranged on the inner wall of the working space close to the opening, the paint spraying cover is coaxial with the piston rod, a positioning hole is formed in the position, corresponding to the positioning block, of the paint spraying cover, eight ejector blocks are uniformly arranged on the side, close to the second support plate, of the paint spraying cover in an annular mode around the positioning hole, a spray head and a dryer are arranged on the inner wall of the paint spraying cover, the spray head is symmetrical to the dryer about the piston rod, the connection line of the dryer and the spray head is perpendicular to the connection line of the two positioning blocks, a paint pipe is fixedly arranged on the side, away from the side of the piston rod, of the dryer, a hot air pipe is fixedly arranged on the side, and the paint pipe and the hot air pipe penetrate through the paint spraying cover and the shell.

Preferably, the method comprises the following steps:

s: limiting, namely placing the axial direction of the valve plate hole on the carrier plate along the direction of the limiting groove, and enabling one end of the valve plate to abut against the small bulge in the limiting groove;

s: positioning, namely, a piston rod drives a carrier plate to move until a hole of a valve plate is concentric with two positioning blocks, and the two positioning blocks are inserted into the hole of the valve plate;

s: fixing, wherein the piston rod continues to slide, so that the positioning block continues to slide towards the valve plate hole, and the first arc-shaped sealing plate and the second arc-shaped sealing plate are supported to fix the valve plate;

s: spraying paint, starting two rotating motors at the same time to drive the valve plate to rotate, so that the paint sprayed by the spray head is uniformly attached to the valve plate;

s: drying, namely opening a dryer after closing the spray nozzle, and drying the paint on the valve plate;

s: resetting, and dragging the valve plate sprayed with paint out of the working space through the support plate.

Has the advantages that: first arc closing plate and second arc closing plate are rotatory around the second rotating pin, prop up the valve plate fixedly, not only can fix the valve plate, can also prevent that paint from spattering the downthehole of valve plate.

Because the valve plate rotates at the uniform velocity, can make the paint on the valve plate more even, prevent to have the paint landing.

The paint is sprayed and then is dried by the dryer, so that the phenomenon that the undried paint is rubbed off in the next work and the paint is not uniformly sprayed is avoided.

Drawings

FIG. 1 is a schematic external view of the present invention;

FIG. 2 is a schematic diagram of a structural implementation of the present invention;

FIG. 3 is a schematic view of FIG. 2 taken along line A-A;

FIG. 4 is an enlarged view of the point B in FIG. 2;

FIG. 5 is an enlarged view of FIG. 3 at C;

FIG. 6 is an enlarged view of FIG. 3 at D;

FIG. 7 is a schematic view taken along the line E-E in FIG. 4;

fig. 8 is an enlarged view of F in fig. 7.

In the figure, a housing 10; a dryer 11; a return spring 12; a telescopic tube 13; a sled 14; a driving rack 15; a hot gas pipe 16; a gear 17; a gear shaft 18; a driven rack 19; a slide hole 20; a support rod 21; a movable chamber 22; a power rod 23; a workspace 24; a paint spray cover 25; a carrier plate 27; a limiting groove 28; a piston rod 29; a spray head 30; a cylinder wall 31; air holes 33; a paint tube 34; a rotating motor 36; a positioning block 37; a first blade 38; a first groove stem 39; a second pallet 40; a first arc-shaped sealing plate 41; a first rotation pin 42; the rotating rod 43; a top block 44; a chute 45; positioning holes 46; a first groove stem 47; a second arcuate seal plate 48; a second rotation pin 49; a paint spraying mechanism 90; the positioning control mechanism 91.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

In the description of the present invention, it should be noted that the terms "inside", "below", and the like refer to orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention conventionally place when used, and are used only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

Referring to fig. 2, the method for painting the butterfly valve plate further specifically relates to a device for painting the butterfly valve plate in the process of painting the butterfly valve plate, and the device for painting the butterfly valve plate comprises a shell 10, a working space 24 with an opening on one side is arranged in the shell 10, two movable cavities 22 are symmetrically arranged in the shell 10 close to the opening of the working space 24 and relative to the opening of the working space 24, a painting mechanism 90 is arranged in the working space 24 close to the opening, and a positioning control mechanism 91 is arranged in the working space 24 far away from the opening.

Further, referring to fig. 2, fig. 3, and fig. 5, the positioning control mechanism 91 includes a cylinder wall 31 fixed on the inner wall of the working space 24 away from the opening, a piston rod 29 is slidably disposed in the cylinder wall 31, a carrier plate 27 is fixedly disposed on the piston rod 29 away from the cylinder wall 31, a limiting groove 28 penetrating along the connecting line direction of the two movable cavities 22 is disposed in the carrier plate 27, and a small protrusion is disposed at one end of the limiting groove 28.

Further, referring to fig. 2, the positioning control mechanism 91 further includes two air holes 33 symmetrically disposed in the cylinder wall 31 with respect to the piston rod 29, two sliding plates 14 symmetrically disposed in the working space 24 with respect to the piston rod 29, each sliding plate 14 is connected to the inner wall of the working space 24 with the movable cavity 22 through a return spring 12, two sides of the cylinder wall 31 with the air holes 33 are fixedly provided with a telescopic tube 13, each telescopic tube 13 is communicated with the corresponding telescopic tube 13, the other end of the telescopic tube 13 is fixed to the corresponding sliding plate 14, each sliding plate 14 is fixedly provided with a driving rack 15 near the end of the movable cavity 22, the inner wall of each movable cavity 22 is rotatably provided with a gear shaft 18, each gear shaft 18 is fixedly provided with a gear 17, the driving rack 15 is engaged with the gear 17, the inner wall of each movable cavity 22 near the working space 24 is provided with a sliding hole 20, each sliding hole 20 is slidably provided with a driven rack 19, the driven racks 19 are connected with the gear 17 in a meshing way at the side far away from the driving rack 15, and a support rod 21 is fixedly arranged on each driven rack 19.

Further, with reference to fig. 4 and 7, the paint spraying mechanism 90 includes a power rod 23 fixed to each support rod 21 and far from the driven rack 19, a rotating motor 36 is embedded in each power rod 23 near the piston rod 29, a positioning block 37 is fixed to each rotating motor 36 on a self-carrying shaft, eight sliding grooves 45 are uniformly formed in each positioning block 37 in a shape-changing manner, first groove rods 39 are slidably formed in the four spaced sliding grooves 45, first groove rods 47 are slidably formed in the other four sliding grooves 45, a first supporting plate 38 is fixed to the four first groove rods 39 near the rotating motor 36, and a second supporting plate 40 is fixed to the four first groove rods 47 near the rotating motor 36.

Further, with reference to fig. 4 and 7, the paint spraying mechanism 90 further includes a first arc-shaped sealing plate 41 rotatably disposed on each first groove rod 39, a second arc-shaped sealing plate 48 rotatably disposed on each first groove rod 47, two first rotating pins 42 are fixedly disposed on each first arc-shaped sealing plate 41 and each second arc-shaped sealing plate 48 near the first groove rod 39, a rotating rod 43 is rotatably disposed on each first rotating pin 42, a second rotating pin 49 is rotatably disposed at the other end of each rotating rod 43, and each second rotating pin 49 is fixed on the inner wall corresponding to the first groove rod 39 and the second arc-shaped sealing plate 48.

Further, with reference to fig. 2 and fig. 3, the paint spraying mechanism 90 further includes a paint spraying cover 25 fixedly disposed on the inner wall of the working space 24 close to the opening, the paint spraying cover 25 is coaxial with the piston rod 29, a positioning hole 46 is disposed on the paint spraying cover 25 corresponding to the positioning block 37, eight ejector blocks 44 are uniformly annularly disposed on the side of the paint spraying cover 25 close to the second supporting plate 40 around the positioning hole 46, a spray head 30 and a dryer 11 are disposed on the inner wall of the paint spraying cover 25, the spray head 30 and the dryer 11 are symmetrical with respect to the piston rod 29, a connection line between the dryer 11 and the spray head 30 is perpendicular to a connection line between the two positioning blocks 37, a paint pipe 34 is fixedly disposed on the side of the spray head 30 away from the piston rod 29, a hot air pipe 16 is fixedly disposed on the side of the dryer 11 away from the piston rod 29, and both the paint pipe 34 and the hot air pipe 16 penetrate through the paint spraying cover 25 and the housing 10.

Further, the method comprises the following steps:

s1: limiting, namely, axially placing the valve plate hole on the carrier plate 27 along the direction of the limiting groove 28, and enabling one end of the valve plate to abut against a small bulge in the limiting groove 28;

s2: positioning, the piston rod 29 drives the carrier plate 27 to move until the hole of the valve plate is concentric with the two positioning blocks 37, and the two positioning blocks 37 are inserted into the hole of the valve plate;

s3: fixing, the piston rod 29 continues to slide, so that the positioning block 37 continues to slide towards the valve plate hole, and simultaneously the first arc-shaped sealing plate 41 and the second arc-shaped sealing plate 48 are supported to fix the valve plate;

s4: during paint spraying, the two rotating motors 36 are started simultaneously to drive the valve plate to rotate, so that the paint sprayed by the spray head 30 is uniformly attached to the valve plate;

s5: drying, namely opening the dryer 11 after closing the spray head 30 and drying the paint on the valve plate;

s6: and resetting, and dragging the valve plate sprayed with paint out of the working space 24 through the carrier plate 27.

Initial state: the return spring 12 is in a normal state, the telescopic tube 13 is in a contracted state, and the piston rod 29 is in an extended state.

The working principle is as follows: the valve plate puts the axial direction of the valve plate hole on the carrier plate 27 along the direction of the limit groove 28, one end of the valve plate is pressed against the small bulge in the limit groove 28, the limit is carried out by the small bulge in the limit groove 28 to ensure the processing position of the valve plate, the piston rod 29 is retracted into the cylinder wall 31, meanwhile, the piston rod 29 compresses the air in the cylinder wall 31 into the telescopic pipe 13 through the air hole 33, and the sliding plate 14 slides towards the inner wall of the working space 24, the return spring 12 is compressed, the telescopic pipe 13 is extended, the sliding plate 14 drives the support rod 21 and the positioning block 37 to slide towards the direction of the piston rod 29 through the driving rack 15 and the gear 17, until the carrier plate 27 moves to the position where the valve plate hole is concentric with the positioning block 37, the two positioning blocks 37 are just inserted into the valve plate hole, the piston rod 29 is separated from the valve plate and continues to retract towards the cylinder wall 31, so that the positioning block 37 continues to slide towards the valve plate hole, and the positioning block 37 continues to slide when the second supporting plate 40 and the first supporting block 38 successively push against the positioning block 44, the first groove rod 39 and the first groove rod 47 are drawn out from the sliding groove 45, the first arc-shaped sealing plate 41 and the second arc-shaped sealing plate 48 are driven to rotate around the second rotating pin 49, the valve plate is supported and fixed, the valve plate can be fixed, and paint can be prevented from being splashed into the hole of the valve plate.

Two rotating motors 36 are started simultaneously to drive the valve plate to rotate, then the spray head 30 sprays paint to the valve plate, the valve plate rotates at a constant speed, so that the paint on the valve plate is more uniform, the paint is prevented from sliding off, the paint is dried by the dryer 11 after being sprayed, the phenomenon that the paint is not dried is prevented from being rubbed off in the next work, the piston rod 29 resets after the paint is dried, the return spring 12 resets to drive the telescopic pipe 13 and the sliding plate 14 to reset, the sliding plate 14 drives the positioning block 37 to reset, and the valve plate sprayed with the paint is dragged out by the support plate 27.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.