Spray type annular dispensing nozzle

Abstract

The utility model relates to the technical field of dispensing nozzles, in particular to a spray type annular dispensing nozzle which comprises a nozzle body, an air inlet pipe fixedly arranged at an air inlet of the nozzle body, a filter box fixedly arranged at one end of the air inlet pipe, a first electric valve arranged on the side face of the air inlet pipe, and a filter screen fixedly arranged in the filter box. The device disclosed by the utility model has the beneficial effects that impurities can be conveniently blocked through the filter screen, the impurities on the filter screen and the impurities on the inner wall of the filter box can be automatically cleaned, and the brushed impurities can be automatically discharged, so that the filter screen is always kept smooth; the filter screen is prevented from being blocked to influence the flow rate of the gas, so that the gas entering the nozzle main body has high purity, the glue quality is prevented from being reduced, the nozzle is prevented from being blocked, and the glue spraying quality and the glue spraying efficiency of the nozzle main body are improved conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of dispensing nozzles, in particular to a spray-type annular dispensing nozzle. Background Technique

[0002] Circumferential dispensing technology is used for circumferential dispensing on the inner wall of holes on workpieces. In order to improve the uniformity of dispensing, a spray-type annular dispensing nozzle is usually used.

[0003] The existing spray-type annular dispensing nozzle usually includes two inner and outer chambers inside. The inner chamber is connected to the glue inlet pipe, and the outer chamber is connected to the air pipe. The bottom ends of the inner chamber and the outer chamber are both communicated with the mixing chamber. The glue in the glue inlet pipe and the gas in the air pipe enter the mixing chamber through the inner chamber and the outer chamber respectively. When the glue and the gas are mixed, the glue will be atomized, and the atomized glue will be ejected through the nozzle at the bottom of the nozzle.

[0004] However, in the implementation of related technologies, it is found that the existing spray-type annular dispensing nozzle has the following problems: The gas needs to be injected into the outer chamber through the air pipe. When there are impurities in the gas, the impurities in the gas are easy to mix with the glue and be ejected through the nozzle, reducing the quality of the glue. When the volume of the impurities is large, it is easy to block the nozzle, resulting in a decrease in the glue spraying efficiency of the nozzle. In view of this, a spray-type annular dispensing nozzle is provided to overcome the above defects. Content of the Utility Model

[0005] The purpose of the utility model is to solve the disadvantages existing in the prior art, and to propose a spray-type annular dispensing nozzle.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: A spray-type annular dispensing nozzle, including a nozzle body, an air inlet pipe is fixedly arranged at the air inlet of the nozzle body, a filter box is fixedly arranged at one end of the air inlet pipe, a first electric valve is arranged on the side of the air inlet pipe, a filter screen is fixedly arranged inside the filter box, a motor is fixedly arranged on one side of the filter screen, a sealing bearing is fixedly arranged on the side of the motor transmission shaft, the side of the motor transmission shaft is rotationally connected to the inside of the filter screen through the sealing bearing, two first brushes are fixedly arranged on the side of the motor transmission shaft, two second brushes are fixedly arranged on the side of each of the two first brushes, a fixing groove is opened on the side of the filter box, a dust collection box is arranged inside the fixing groove, a dust outlet pipe is fixedly arranged at the bottom end of the dust collection box, and a second electric valve is arranged on the side of the dust outlet pipe.

[0007] As a further description of the above technical solution: One side of each of the two first brushes is attached to the other side of the filter screen, one side of each of the two second brushes is attached to the inner wall of the filter box, and a support rod is fixedly arranged between the two second brushes. The second brush is convenient for brushing off impurities on the inner wall of the filter box.

[0008] As a further description of the above technical solution: A connection hole is formed on one side of the filter box, and a communicating pipe is fixedly arranged inside the connection hole. The communicating pipe is convenient for sending gas into the filter box.

[0009] As a further description of the above technical solution: Two sliders are fixedly arranged on the side surface of the dust collection box, and two slide rails are fixedly arranged on the outer side of the filter box. The slide rails are convenient for positioning the sliders.

[0010] As a further description of the above technical solution: Chute grooves are formed inside both of the two slide rails, and the inner parts of the two chute grooves are respectively in contact with the side surfaces of the two sliders. The sliders are convenient for positioning the dust collection box.

[0011] As a further description of the above technical solution: Placement boxes are fixedly arranged on one side of both of the two slide rails. First movable holes are formed on one side of both of the two placement boxes. Limit rods are arranged inside the two first movable holes. Fixed plates are fixedly arranged at one ends of the two limit rods. The side surfaces of the two fixed plates are respectively in contact with the inner parts of the two placement boxes. Pull rods are fixedly arranged on one side of both of the two fixed plates. The pull rods are convenient for pulling the fixed plates and the limit rods.

[0012] As a further description of the above technical solution: Second movable holes are formed on the other side of both of the two placement boxes. The inner parts of the two second movable holes are respectively in contact with the side surfaces of the two pull rods. Compression springs are fixedly arranged on one side of both of the two fixed plates. The other sides of the two compression springs are respectively fixedly connected with the inner parts of the two placement boxes. The compression springs are convenient for pressing the fixed plates and the limit rods.

[0013] As a further description of the above technical solution: First limit holes are formed inside both of the two slide rails. The inner parts of the two first limit holes are respectively in contact with the side surfaces of the two limit rods. Second limit holes are formed inside both of the two sliders. The inner parts of the two second limit holes are respectively in contact with the side surfaces of the two limit rods. The limit rods are convenient for fixing the slide rails and the sliders together.

[0014] The utility model has the following beneficial effects:

[0015] A spray-type annular dispensing nozzle designed by the utility model. Through design cooperation, the air supply device injects gas into the filter box through the connecting pipe. The impurities in the gas are blocked by the filter screen. Most of the impurities blocked by the filter screen fall into the dust collection box for collection. Close the first electric valve and open the second electric valve, so that the gas in the connecting pipe enters the dust collection box, and the remaining impurities in the filter box and the impurities in the dust collection box are discharged through the dust outlet pipe. The motor drives the first brush and the second brush to rotate. The surface impurities of the filter screen are brushed off by the first brush, and the inner wall impurities of the filter box are brushed off by the second brush. The brushed impurities fall into the dust collection box for collection. Therefore, the device is convenient to block impurities through the filter screen, and can automatically clean the impurities on the filter screen and the inner wall of the filter box, and can automatically discharge the brushed impurities, so that the filter screen always remains unblocked, avoiding the blockage of the filter screen from affecting the gas flow rate, so that the gas entering the nozzle body has a high purity, avoiding the decline of glue quality and the blockage of the nozzle, thus facilitating the improvement of the dispensing quality and efficiency of the nozzle body;

[0016] A spray-type annular dispensing nozzle designed by the utility model. Through design cooperation, when the dust collection box, the dust outlet pipe and the second electric valve are blocked, pull the two pull rods to take out the limiting rod from the slide rail and the slider. At this time, the slider loses its limit, and the slider is removed, so that the dust collection box, the dust outlet pipe and the second electric valve can be removed. Replace the new dust collection box, the dust outlet pipe and the second electric valve, put the slider into the slide rail, and loosen the pull rod, so that the limiting rod enters the inside of the slider and the slide rail, so that the slider is limited, so that the dust collection box is limited, so that the device is convenient to quickly disassemble and assemble the dust collection box, the dust outlet pipe and the second electric valve, avoiding the dust collection box, the dust outlet pipe and the second electric valve from affecting the discharge of impurities, and improving the processing efficiency of the impurities in the gas by the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the overall structure schematic diagram of the utility model;

[0018] Figure 2 is the internal structure schematic diagram of the filter box of the utility model;

[0019] Figure 3 is the installation structure schematic diagram of the motor of the utility model;

[0020] Figure 4 is the exploded structure schematic diagram of the dust collection box of the utility model;

[0021] Figure 5 is the split structure schematic diagram of the placement box of the utility model.

[0022] LEGEND DESCRIPTION:

[0023] 1. Sprayer main body; 2. Intake pipe; 3. Filter box; 4. First electric valve; 5. Filter net; 6. Motor; 7. Sealed bearing; 8. First brush; 9. Second brush; 10. Dust collection box; 11. Dust outlet pipe; 12. Second electric valve; 13. Support rod; 14. Connecting pipe; 15. Slide block; 16. Slide rail; 17. Placing box; 18. Limiting rod; 19. Fixed plate; 20. Pull rod; 21. Extrusion spring. Detailed implementation mode

[0024] Refer to Figures 1 - 5 , a spray-type annular dispensing nozzle provided by the present utility model: includes a sprayer main body 1, an intake port of the sprayer main body 1 is fixedly provided with an intake pipe 2, one end of the intake pipe 2 is fixedly provided with a filter box 3, a first electric valve 4 is provided on the side of the intake pipe 2, the first electric valve 4 is convenient for controlling the switch of the intake pipe 2, a filter net 5 is fixedly provided inside the filter box 3, a motor 6 is fixedly provided on one side of the filter net 5, a sealed bearing 7 is fixedly provided on the side of the motor 6 transmission shaft, the sealed bearing 7 prevents impurities from entering the motor 6, the side of the motor 6 transmission shaft is rotationally connected to the inside of the filter net 5 through the sealed bearing 7, two first brushes 8 are fixedly provided on the side of the motor 6 transmission shaft, the first brushes 8 are convenient for brushing impurities on the surface of the filter net 5, two second brushes 9 are fixedly provided on the side of each of the two first brushes 8, a fixing groove is provided on the side of the filter box 3, a dust collection box 10 is provided inside the fixing groove, the dust collection box 10 is convenient for collecting impurities, a dust outlet pipe 11 is fixedly provided at the bottom end of the dust collection box 10, the dust removal pipe is convenient for discharging the dust in the dust collection box 10, and a second electric valve 12 is provided on the side of the dust outlet pipe 11.

[0025] As a further implementation of the above technical solution: one side of each of the two first brushes 8 is in contact with the other side of the filter net 5, one side of each of the two second brushes 9 is in contact with the inner wall of the filter box 3, a support rod 13 is fixedly provided between the two second brushes 9, and the second brushes 9 are convenient for brushing impurities on the inner wall of the filter box 3.

[0026] As a further implementation of the above technical solution: a connection hole is provided on one side of the filter box 3, a connecting pipe 14 is fixedly provided inside the connection hole, and the connecting pipe 14 is convenient for sending gas into the filter box 3.

[0027] During specific implementation: The gas injection device injects gas into the filter box 3 through the connecting pipe 14. The impurities in the gas are blocked by the filter net 5. The filtered gas is injected into the spray head body 1 through the air inlet pipe 2 and mixed with the glue in the spray head body 1 to atomize the glue. Most of the impurities blocked by the filter net 5 fall into the dust collection box 10 for collection. When a certain amount of impurities accumulates in the dust collection box 10, the first electric valve 4 is closed and the second electric valve 12 is opened, so that the gas in the connecting pipe 14 enters the dust collection box 10, and the residual impurities in the filter box 3 and the impurities in the dust collection box 10 are discharged through the dust outlet pipe 11. After the impurities in the filter box 3 and the dust collection box 10 are cleaned, the first electric valve 4 is opened and the second electric valve 12 is closed, so that the gas in the connecting pipe 14 continues to flow into the air inlet pipe 2, which is convenient for automatically discharging the impurities filtered by the device. When impurities accumulate on the surface of the filter net 5 and impurities adhere to the inner wall of the filter box 3, the motor 6 is started. The transmission shaft of the motor 6 drives the first brush 8 and the second brush 9 to rotate. The impurities on the surface of the filter net 5 are brushed off by the first brush 8, and the impurities on the inner wall of the filter box 3 are brushed off by the second brush 9. The brushed impurities fall into the dust collection box 10 for collection. Therefore, the device is convenient for blocking impurities through the filter net 5, and can automatically clean the impurities on the filter net 5 and the inner wall of the filter box 3, and can automatically discharge the brushed impurities, so that the filter net 5 is always unobstructed, avoiding the blockage of the filter net 5 from affecting the gas flow rate, so that the gas entering the spray head body 1 has a high purity, avoiding the decline of glue quality and the blockage of the spray nozzle, thus facilitating the improvement of the glue spraying quality and efficiency of the spray head body 1.

[0028] As a further implementation of the above technical solution: Two sliders 15 are fixedly provided on the side of the dust collection box 10, and two slide rails 16 are fixedly provided on the outside of the filter box 3. The slide rails 16 are convenient for positioning the sliders 15.

[0029] As a further implementation of the above technical solution: Chute grooves are respectively opened in the interiors of the two slide rails 16, and the sides of the two slide rails 16 are respectively fitted with the sides of the two sliders 15. The sliders 15 are convenient for positioning the dust collection box 10.

[0030] As a further implementation of the above technical solution: Placing boxes 17 are respectively fixedly provided on one side of the two slide rails 16. First movable holes are respectively opened on one side of the two placing boxes 17. Positioning rods 18 are respectively arranged in the interiors of the two first movable holes. Fixing plates 19 are respectively fixedly provided at one ends of the two positioning rods 18. The sides of the two fixing plates 19 are respectively fitted with the interiors of the two placing boxes 17. Pulling rods 20 are respectively fixedly provided on one side of the two fixing plates 19. The pulling rods 20 are convenient for pulling the fixing plates 19 and the positioning rods 18.

[0031] As a further implementation of the above technical solution: on the other sides of the two placement boxes 17, second moving holes are respectively opened, the interiors of the two second moving holes are respectively in contact with the sides of the two pull rods 20, on one side of each of the two fixing plates 19, an extrusion spring 21 is fixedly provided, and on the other sides of the two extrusion springs 21, they are respectively fixedly connected to the interiors of the two placement boxes 17. The extrusion spring 21 facilitates extruding the fixing plate 19 and the limiting rod 18.

[0032] As a further implementation of the above technical solution: in the interiors of the two slide rails 16, first limiting holes are respectively opened, the interiors of the two first limiting holes are respectively in contact with the sides of the two limiting rods 18, in the interiors of the two sliders 15, second limiting holes are respectively opened, and the interiors of the two second limiting holes are respectively in contact with the sides of the two limiting rods 18. The limiting rod 18 facilitates fixing the slide rail 16 and the slider 15 together.

[0033] During specific implementation: when the dust collection box 10, the dust outlet pipe 11, and the second electric valve 12 are blocked, pull the two pull rods 20, thereby driving the two fixing plates 19 to move away from each other, thereby driving the two limiting rods 18 to move away from each other, so that the limiting rods 18 are taken out from the slide rail 16 and the slider 15. At this time, the slider 15 loses its limit, so that the slider 15 can be removed, so that the dust collection box 10, the dust outlet pipe 11, and the second electric valve 12 can be removed. Replace the new dust collection box 10, dust outlet pipe 11, and second electric valve 12. Place the dust collection box 10 into the fixing groove, and place the slider 15 into the slide rail 16. Release the pull rod 20, so that the two fixing plates 19 approach each other under the extrusion of the extrusion spring 21, thereby driving the two limiting rods 18 to approach each other, so that the limiting rods 18 enter the interiors of the slider 15 and the slide rail 16, so that the slider 15 is limited, so that the dust collection box 10 is limited. Clean the removed dust collection box 10, dust outlet pipe 11, and second electric valve 12, which is convenient for the next replacement. Thus, the device is convenient for quickly disassembling and assembling the dust collection box 10, the dust outlet pipe 11, and the second electric valve 12, avoiding the influence of the dust collection box 10, the dust outlet pipe 11, and the second electric valve 12 on the discharge of impurities, and improving the processing efficiency of the device for impurities in the gas.

[0034] Finally, it should be noted that: the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, 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 spray-type annular dispensing nozzle, comprising a nozzle body (1), characterized in that: An air inlet of the nozzle body (1) is fixedly provided with an air inlet pipe (2), a filter box (3) is fixedly provided at one end of the air inlet pipe (2), a first electric valve (4) is provided on the side of the air inlet pipe (2), a filter screen (5) is fixedly provided inside the filter box (3), a motor (6) is fixedly provided on one side of the filter screen (5), a sealing bearing (7) is fixedly provided on the side of the transmission shaft of the motor (6), the side of the transmission shaft of the motor (6) is rotatably connected to the inside of the filter screen (5) through the sealing bearing (7), two first brushes (8) are fixedly provided on the side of the transmission shaft of the motor (6), and a second brush (9) is fixedly provided on the side of each of the two first brushes (8), a fixing groove is provided on the side of the filter box (3), a dust collecting box (10) is provided inside the fixing groove, a dust outlet pipe (11) is fixedly provided at the bottom end of the dust collecting box (10), and a second electric valve (12) is provided on the side of the dust outlet pipe (11).

2. A spray-type annular glue dispensing nozzle according to claim 1, characterized in that: One side of the two first brushes (8) fits against the other side of the filter screen (5), one side of the two second brushes (9) fits against the inner wall of the filter box (3), and a support rod (13) is fixed between the two second brushes (9).

3. The spray-type annular glue dispensing nozzle according to claim 1, characterized in that: A connection hole is provided on one side of the filter box (3), and a connecting pipe (14) is fixedly provided inside the connection hole.

4. The spray-type annular glue dispensing nozzle according to claim 1, characterized in that: Two sliding blocks (15) are fixedly provided on the side of the dust collecting box (10), and two sliding rails (16) are fixedly provided on the outer side of the filter box (3).

5. The spray-type annular glue dispensing nozzle according to claim 4, characterized in that: The two slide rails (16) are each provided with a slide groove, and the interiors of the two slide grooves are respectively fitted with the side surfaces of the two sliding blocks (15).

6. The spray-type annular glue dispensing nozzle according to claim 5, characterized in that: A placement box (17) is fixedly provided on one side of the two slide rails (16), a first movable hole is opened on one side of the two placement boxes (17), a limiting rod (18) is provided inside the two first movable holes, a fixing plate (19) is fixedly provided on one end of the two limiting rods (18), the side surfaces of the two fixing plates (19) are respectively fitted with the inside of the two placement boxes (17), and a pull rod (20) is fixedly provided on one side of the two fixing plates (19).

7. The spray-type annular glue dispensing nozzle according to claim 6, characterized in that: A second movable hole is provided on the other side of the two placement boxes (17), and the interiors of the two second movable holes are respectively fitted with the side surfaces of the two pull rods (20). A compression spring (21) is fixedly provided on one side of the two fixing plates (19), and the other sides of the two compression springs (21) are respectively fixedly connected to the interiors of the two placement boxes (17).

8. The spray-type annular glue dispensing nozzle according to claim 7, characterized in that: The two slide rails (16) are each provided with a first limiting hole, the interiors of the two first limiting holes respectively fit with the side surfaces of the two limiting rods (18); the two slide blocks (15) are each provided with a second limiting hole, the interiors of the two second limiting holes respectively fit with the side surfaces of the two limiting rods (18).

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