Reciprocating type electrostatic spraying mechanism

Abstract

The utility model discloses a reciprocating type electrostatic spraying mechanism which comprises a machine frame and spray heads and further comprises a movable base, the spray heads are electrostatic spray heads, the spray heads are evenly arranged in the front-back direction, and all the spray heads are connected with the movable base. A linear driving device and a guide polish rod are installed on the rack, and the length direction of the guide polish rod and the conveying direction of the linear driving device are the same and are both in the left-right direction; the moving seat is connected with a linear driving device, and the linear driving device drives the moving seat and the sprayers mounted on the moving seat to move in the left-right direction; the movable seat is provided with a guide sleeve seat, the guide sleeve seat is provided with an unthreaded hole matched with the guide polish rod, and the guide sleeve seat is arranged on the guide polish rod in a sleeving mode through the unthreaded hole of the guide sleeve seat; according to the powder coating device, the linear driving device can drive the moving seat and the plurality of spray heads mounted on the moving seat to reciprocate in the left-right direction, so that the powder can be uniformly coated on the aluminum alloy high-pressure composite gas cylinder.

Description

Technical Field

[0001] The utility model relates to the technical field of gas cylinder powder spraying, in particular to a reciprocating electrostatic spraying mechanism. Background Art

[0002] During the processing of aluminum alloy high-pressure composite gas cylinders, after the bottle mouth machine processing and the screwing rod, before the winding process, it is necessary to spray epoxy resin powder on the outer surface of the cylinder liner and solidify the powder. The manual coating method is not only labor-intensive, but also unstable in coating effect. The workers are in close contact with epoxy resin, which is not conducive to their occupational health. Therefore, it is necessary to use a spraying device to spray epoxy resin powder.

[0003] In the prior art, the utility model patent with application number CN201320180928.3 discloses a composite gas cylinder spraying and drying integrated device, including a spraying device, a drying box, and a conveying device for transferring the composite gas cylinder after painting to the drying box, wherein the conveying device includes: a conveying track, a mechanical arm sliding along the conveying track, a motor mounted on the mechanical arm, and a connecting rod linked to the motor, wherein the end of the connecting rod has a threaded sleeve for horizontally fixing the composite gas cylinder. When this composite gas cylinder spraying and drying integrated device is working: the conveying device transports the gas cylinder to the spraying area, first turns on the motor, drives the composite gas cylinder to rotate circumferentially through the connecting rod, and then starts the spraying device to spray the outer surface of the composite gas cylinder.

[0004] The spraying device provided by the above patent does not have a structure of a reciprocating nozzle, and the aluminum alloy high-pressure composite gas cylinder produced by our company can be up to 6 meters in length. The spraying device provided by the above patent cannot achieve spraying of the entire bottle body. Even if multiple such spraying devices are used, it is difficult to ensure uniform spraying because the nozzle cannot reciprocate. Utility Model Content

[0005] The utility model aims to provide a reciprocating electrostatic spraying mechanism, aiming to improve the problem of uneven spraying caused by the inability of the spray head to reciprocate in the existing spraying device for composite gas cylinders.

[0006] The utility model is implemented as follows: a reciprocating electrostatic spraying mechanism comprises a frame and a nozzle, and also comprises a movable seat, wherein the nozzle is an electrostatic nozzle, and a plurality of nozzles are evenly arranged along the front-back direction, and each nozzle is connected to the movable seat; a linear drive device and a guide light rod are installed on the frame, and the length direction of the guide light rod is the same as the conveying direction of the linear drive device, both along the left-right direction; the movable seat is connected to the linear drive device, and the linear drive device drives the movable seat and each nozzle installed on the movable seat to move along the left-right direction; a guide sleeve seat is arranged on the movable seat, and the guide sleeve seat has a light hole adapted to the guide light rod, and the guide sleeve seat is sleeved on the guide light rod through its light hole.

[0007] Furthermore, the linear drive device includes a motor, a reducer, a driving pulley, a driven pulley and a synchronous belt. The motor is connected to the input end of the reducer, the output end of the reducer is connected to the driving pulley, the driving pulley and the driven pulley are connected through a synchronous belt, and the guide sleeve is connected to the synchronous belt.

[0008] Furthermore, the movable seat is in the shape of a rectangular frame, and a connecting piece is provided on the upper end surface of the upper wall of the movable seat, and the connecting piece is connected to the synchronous belt.

[0009] Furthermore, two guide light rods are provided, and the two guide light rods are respectively located on both sides of the synchronous belt; two groups of guide sleeves are provided on the lower end surface of the upper wall of the movable seat, and the two groups of guide sleeves are respectively connected with the two guide light rods.

[0010] Furthermore, a mounting frame is provided on the lower end surface of the lower wall of the movable seat, and each nozzle is mounted on the mounting frame; it also includes a plastic tank chain, the end of which is connected to the mounting frame, and the feed end of the nozzle is connected to a feeding hose for conveying powder and compressed air, and the feeding hose is arranged in the plastic tank chain.

[0011] Furthermore, the mounting frame has a mounting circular tube, and the length direction of the mounting circular tube is along the front-to-back direction; a plurality of connecting blocks are installed on the mounting circular tube, and a first clamping through hole and a second clamping through hole are provided on the connecting block, and each clamping through hole is connected to an open groove, and threaded holes and bolt mounting through holes are respectively provided on the groove walls on both sides of the open groove, and a clamping bolt is installed in the bolt mounting through hole, and the screw portion of the clamping bolt is screwed into the threaded hole; the length direction of the first clamping through hole is along the front-to-back direction, and the connecting block is sleeved on the mounting circular tube through the first clamping through hole; the length direction of the second clamping through hole is along the up-down direction, and a connecting tube is clamped in the second clamping through hole, and a nozzle is installed at the lower end of the connecting tube.

[0012] Furthermore, a protective shell is provided on the frame, the linear drive device and the guide light rod are both located in the protective shell, and the front and rear sides of the protective shell are both provided with through holes along the left and right directions for the upper wall of the movable seat to pass through.

[0013] Furthermore, it also includes a control box, which is provided with a touch screen, a control switch and an adjustment knob. The control box is provided with a frequency converter, and the touch screen, the control switch, the adjustment knob and the linear drive device are all electrically connected to the frequency converter.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The linear drive device of the utility model can drive the moving seat and the multiple nozzles installed on the moving seat to reciprocate along the left and right directions, so that the powder sprayed by the nozzles can be evenly coated on the aluminum alloy high-pressure composite gas cylinder.

[0016] 2. The utility model is provided with a plastic tank chain. The feed end of the nozzle is connected with a feeding hose for conveying powder and compressed air. The feeding hose is arranged in the plastic tank chain. The plastic tank chain can effectively protect the feeding hose for conveying powder and compressed air. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0018] Figure 2 It is a schematic diagram of the three-dimensional structure of the utility model when the protective shell is removed;

[0019] Figure 3 yes Figure 2 A magnified image of area A;

[0020] Figure 4 yes Figure 2 Magnified view of area B.

[0021] In the figure: 1. Nozzle; 2. Guide light rod; 3. Moving seat; 4. Guide sleeve seat; 5. Motor; 6. Reducer; 7. Driven pulley; 8. Synchronous belt; 9. Connector; 10. Mounting frame; 11. Protective shell; 12. Mounting round tube; 13. Connecting block; 14. Opening groove; 15. Connecting pipe; 16. Plastic tank chain; 17. Control box; 18. Touch screen. DETAILED DESCRIPTION

[0022] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] The following is a further description with reference to the accompanying drawings and specific embodiments:

[0024] A reciprocating electrostatic spraying mechanism, such as Figure 1 and Figure 2 As shown, it includes a frame, a nozzle 1, a moving seat 3, a protective shell 11 and a plastic tank chain 16. A linear drive device and a guide light rod 2 are installed on the frame. The length direction of the guide light rod 2 is the same as the conveying direction of the linear drive device, both along the left and right direction. The linear drive device includes a motor 5, a reducer 6, a driving pulley, a driven pulley 7 and a synchronous belt 8. The motor 5 is connected to the input end of the reducer 6, and the output end of the reducer 6 is connected to the driving pulley. The driving pulley and the driven pulley 7 are connected through the synchronous belt 8. Start the motor 5, the motor 5 drives the driving pulley to rotate through the reducer 6, and when the driving pulley rotates, it drives the synchronous belt 8 to move, and at the same time drives the driven pulley 7 to rotate.

[0025] In some exemplary embodiments, the linear drive device includes a motor 5, a reducer 6, a driving sprocket, a driving sprocket and a chain, the motor 5 is connected to the input end of the reducer 6, the output end of the reducer 6 is connected to the driving sprocket, and the driving sprocket and the driven sprocket are connected through a chain. When the motor 5 is started, the motor 5 drives the driving sprocket to rotate through the reducer 6, and when the driving sprocket rotates, the chain moves, and the driven sprocket is driven to rotate at the same time.

[0026] like Figure 1 , Figure 2 and Figure 3 As shown, the moving seat 3 is in the shape of a rectangular frame, and a connecting piece 9 is provided on the upper end surface of the upper wall of the moving seat 3. The connecting piece 9 is connected to the synchronous belt 8, and the linear drive device can drive the moving seat 3 to move. Two guide light rods 2 are provided, and the two guide light rods 2 are respectively located on both sides of the synchronous belt 8. Two groups of guide sleeves 4 are provided on the lower end surface of the upper wall of the moving seat 3. The guide sleeves 4 have light holes that match the guide light rods 2. The guide sleeves 4 are sleeved on the guide light rods 2 through their light holes. The two groups of guide sleeves 4 are respectively connected with the two guide light rods 2. The cooperation between the guide sleeves 4 and the guide light rods 2 enables the moving seat 3 to stably move along the left and right directions.

[0027] like Figure 1 , Figure 2 and Figure 4 As shown, a mounting frame 10 is provided on the lower end surface of the lower wall of the movable seat 3, and the mounting frame 10 has a mounting circular tube 12, and the length direction of the mounting circular tube 12 is along the front-back direction. A plurality of connecting blocks 13 are installed on the mounting circular tube 12, and a first clamping through hole and a second clamping through hole are provided on the connecting block 13, and each clamping through hole is connected with an opening groove 14, and threaded holes and bolt mounting through holes are respectively provided on the groove walls on both sides of the opening groove 14, and clamping bolts are installed in the bolt mounting through holes, and the screw rod of the clamping bolt is screwed into the threaded hole. By screwing the clamping bolt, the size of the clamping through hole can be adjusted to a certain extent. The length direction of the first clamping through hole is along the front-back direction, and the connecting block 13 is sleeved on the mounting circular tube 12 through the first clamping through hole. Loosening the clamping bolt at the first clamping through hole can make the connecting block 13 slide along the mounting circular tube 12, and the position of the connecting block 13 on the mounting circular tube 12 can be adjusted. Tightening the clamping bolt at the first clamping through hole can fix the connecting block 13 on the mounting circular tube 12. The length direction of the second clamping through hole is along the up-down direction. A connecting pipe 15 is clamped in the second clamping through hole. A nozzle 1 is installed at the lower end of each connecting pipe 15. Therefore, the nozzles 1 are arranged in sequence along the front-back direction.

[0028] like Figure 1 As shown, the end of the plastic tank chain 16 is connected to the mounting frame 10, and the feeding end of the nozzle 1 is connected to a feeding hose for conveying powder and compressed air. The feeding hose is arranged in the plastic tank chain 16, and the plastic tank chain 16 can effectively protect the feeding hose for conveying powder and compressed air.

[0029] like Figure 1 As shown, the protective shell 11 is arranged on the frame, the linear drive device and the guide light rod 2 are both located in the protective shell 11, and the front and rear sides of the protective shell 11 are both provided with through holes along the left and right directions for the upper wall of the movable seat 3 to pass through. And the through holes are provided with sealing curtains, sealing bristles and other structures to prevent powder from entering the protective shell 11.

[0030] like Figure 1 As shown, a control box 17 is provided on the protective shell 11, and a touch screen 18, a control switch and an adjusting knob are provided on the control box 17. A frequency converter is provided in the control box 17, and the touch screen 18, the control switch, the adjusting knob and the linear drive device are all electrically connected to the frequency converter. The output frequency of the frequency converter can be set by adjusting the knob and the touch screen 18 to adjust the speed of the motor 5, that is, to adjust the conveying speed of the linear drive device and the reciprocating speed of the nozzle 1. The touch screen 18 can also display the speed of the motor 5, and the control switch can control the start and stop of the motor 5. The touch screen 18 and the frequency converter can also be electrically connected to the automation control system of the entire powder spraying system to achieve automatic control.

[0031] The working principle of the utility model is as follows: the powder is mixed with air in the powder feeder and then fed into the nozzle 1. The high voltage generated by the high-voltage electrostatic generator is connected to the inside or front end of the nozzle 1. The powder is charged inside or at the outlet of the nozzle 1. Under the joint action of air force and electrostatic force, the powder particles are sprayed onto the aluminum alloy high-pressure composite gas cylinder in a directional manner, and can also be adsorbed onto the back of the aluminum alloy high-pressure composite gas cylinder. When the powder attached to the aluminum alloy high-pressure composite gas cylinder exceeds a certain thickness, electrostatic repulsion occurs, and the subsequent powder is not easily adsorbed onto the surface of the aluminum alloy high-pressure composite gas cylinder, so that the surface of the aluminum alloy high-pressure composite gas cylinder reaches a uniform film thickness. When the utility model is working, it needs to be used in conjunction with a device that can drive the aluminum alloy high-pressure composite gas cylinder to rotate. The aluminum alloy high-pressure composite gas cylinder rotates while powder spraying is performed. The linear drive device of the utility model can drive the moving seat 3 and the multiple nozzles 1 installed on the moving seat 3 to reciprocate in the left and right directions, so that the powder sprayed by the nozzle 1 can be evenly coated on the aluminum alloy high-pressure composite gas cylinder.

[0032] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be modified and varied in various ways. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A reciprocating electrostatic spraying mechanism, comprising a frame and a spray head (1), characterized in that: The invention also comprises a movable seat (3), wherein the nozzle (1) is an electrostatic nozzle, and a plurality of nozzles (1) are evenly arranged along the front-back direction, and each nozzle (1) is connected to the movable seat (3); a linear drive device and a guide light rod (2) are installed on the frame, and the length direction of the guide light rod (2) is the same as the conveying direction of the linear drive device, and is along the left-right direction; the movable seat (3) is connected to the linear drive device, and the linear drive device drives the movable seat (3) and each nozzle (1) installed on the movable seat (3) to move along the left-right direction; a guide sleeve seat (4) is arranged on the movable seat (3), and the guide sleeve seat (4) has a light hole adapted to the guide light rod (2), and the guide sleeve seat (4) is sleeved on the guide light rod (2) through its light hole.

2. A reciprocating electrostatic spraying mechanism according to claim 1, characterized in that: The linear drive device comprises a motor (5), a reducer (6), a driving pulley, a driven pulley (7) and a synchronous belt (8); the motor (5) is connected to an input end of the reducer (6); the output end of the reducer (6) is connected to the driving pulley; the driving pulley and the driven pulley (7) are connected via a synchronous belt (8); and the guide sleeve (4) is connected to the synchronous belt (8).

3. A reciprocating electrostatic spraying mechanism according to claim 2, characterized in that: The movable seat (3) is in the shape of a rectangular frame. A connecting piece (9) is provided on the upper end surface of the upper wall of the movable seat (3). The connecting piece (9) is connected to the synchronous belt (8).

4. A reciprocating electrostatic spraying mechanism according to claim 3, characterized in that: Two guide light rods (2) are provided, and the two guide light rods (2) are respectively located on both sides of the synchronous belt (8); two groups of guide sleeve seats (4) are provided on the lower end surface of the upper wall of the movable seat (3), and the two groups of guide sleeve seats (4) are respectively matched and connected with the two guide light rods (2).

5. A reciprocating electrostatic spraying mechanism according to claim 3, characterized in that: A mounting frame (10) is arranged on the lower end surface of the lower wall of the movable seat (3), and each nozzle (1) is mounted on the mounting frame (10); in addition, a plastic tank chain (16) is included, and the end of the plastic tank chain (16) is connected to the mounting frame (10), and the feed end of the nozzle (1) is connected to a feeding hose for conveying powder and compressed air, and the feeding hose is arranged in the plastic tank chain (16).

6. A reciprocating electrostatic spraying mechanism according to claim 5, characterized in that: The mounting frame (10) comprises a mounting circular tube (12), the length direction of the mounting circular tube (12) being along the front-to-back direction; a plurality of connecting blocks (13) are mounted on the mounting circular tube (12), the connecting blocks (13) being provided with a first clamping through hole and a second clamping through hole, each clamping through hole being connected to an opening groove (14), the groove walls on both sides of the opening groove (14) being provided with threaded holes and bolt mounting through holes, respectively, a clamping bolt being mounted in the bolt mounting through hole, the screw portion of the clamping bolt being screwed into the threaded hole; the length direction of the first clamping through hole being along the front-to-back direction, the connecting block (13) being sleeved on the mounting circular tube (12) through the first clamping through hole; the length direction of the second clamping through hole being along the up-down direction, a connecting tube (15) being clamped in the second clamping through hole, the lower end of the connecting tube (15) being provided with a nozzle (1).

7. A reciprocating electrostatic spraying mechanism according to claim 5, characterized in that: A protective shell (11) is arranged on the frame, the linear drive device and the guide light rod (2) are both located in the protective shell (11), and through holes are arranged on both the front and rear sides of the protective shell (11) along the left and right directions for the upper wall of the movable seat (3) to pass through.

8. A reciprocating electrostatic spraying mechanism according to claim 1, characterized in that: The invention also comprises a control box (17), on which a touch screen (18), a control switch and an adjusting knob are arranged, and in which a frequency converter is arranged, and the touch screen (18), the control switch, the adjusting knob and the linear drive device are all electrically connected to the frequency converter.

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