Waterproof sound-transmitting film coating and spraying device with uniform spraying function

Abstract

The coating and spraying device comprises a box body with passing grooves formed in the two sides, a spraying assembly is fixedly installed on one side of the box body, a plurality of double-thread screws are rotationally connected to the interior of the box body, the two ends of each double-thread screw are in threaded connection with a spraying supporting frame and a fixing plate respectively, and the spraying supporting frame is fixedly connected with the box body. One end of each spraying supporting frame is fixedly connected with a suction cup, one end of the fixing plate is fixedly connected with a rubber pad, the rubber pad and one end of the suction cup are slidably connected with a workpiece, the spraying assembly comprises an ultrasonic spraying main machine, a moving assembly and a nozzle mechanism, the ultrasonic spraying main machine is fixedly connected to the outer side of the box body, and the two ends of the moving assembly are fixedly connected to the inner wall of the box body; the multiple double-thread screws rotate to drive the fixing plate to move downwards, a workpiece at one end of the passing groove is fixed, meanwhile, the passing groove is sealed from the inner side, the interior of the box body is temporarily in the state of being isolated from the outside, at the moment, external interference can be isolated during spraying, and the spraying effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of waterproof and sound-permeable membrane production, in particular to a waterproof and sound-permeable membrane coating spraying device capable of spraying uniformly. Background Art

[0002] Waterproof and sound-permeable membrane is a membrane material used for waterproofing and sound-permeability. It is often used in communication equipment in underwater, outdoor and other occasions. It can prevent water, dust and other substances from entering the equipment while ensuring that the sound can be transmitted clearly. It can be used in speakers, receivers and microphones of mobile phones, headphones and other devices. Most of them can meet IP67 / 68 waterproof standards. During the production process, the acoustic properties of the entire membrane can be changed by spraying materials on the surface of the waterproof and sound-permeable membrane to improve product quality. The uniformity of the spraying directly affects the final quality of the membrane.

[0003] After searching, the Chinese patent publication number CN117772549A discloses a waterproof breathable membrane production device, which includes a coating device, a microstructure control device, a curing device, a replacement device and a drying device.

[0004] Aiming at the problem that the above-mentioned technology is unable to evenly spray the material onto the surface of the film by directly coating the material by spraying, a waterproof and sound-permeable membrane coating spraying device with even spraying is proposed. Utility Model Content

[0005] In view of this, the embodiment of the present invention hopes to provide a waterproof and sound-permeable membrane coating spraying device that sprays evenly to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial option.

[0006] The technical solution of the embodiment of the utility model is achieved as follows: it includes a box body with through slots on both sides, a spray assembly is fixedly installed on one side of the box body, a plurality of double-headed screws are rotatably connected inside the box body, and the two ends of the double-headed screws are respectively threadedly connected to a spray support frame and a fixed plate, one end of the multiple spray support frames is fixedly connected to a suction cup, one end of the fixed plate is fixedly connected to a rubber pad, and the rubber pad and one end of the suction cup are slidably connected to a workpiece.

[0007] In some embodiments, the spray assembly includes an ultrasonic spray main unit, a moving component and a nozzle mechanism. The ultrasonic spray main unit is fixedly connected to the outside of the box, both ends of the moving component are fixedly connected to the inner wall of the box, one end of the nozzle mechanism is slidably connected to one side of the moving component, and one end of the nozzle mechanism is fixedly connected to the box through a pipe.

[0008] In some embodiments, an exhaust fan is fixedly connected to one side of the box.

[0009] In some embodiments, a positioning boss is fixedly connected to the inner side of the through groove.

[0010] In some embodiments, one end of the double-headed screw is fixedly connected to a sprocket group, and multiple sprocket groups are connected through chain one and chain two. A lifting motor is fixedly connected to the lower side of the box, and the power output end of the lifting motor is fixedly connected to the sprocket group on one side.

[0011] In some embodiments, a vacuum pump is fixedly connected to the bottom of the box, and the air inlet end of the vacuum pump is fixedly connected to the bottom side of the suction cup through a pipeline.

[0012] In some embodiments, a drying mechanism is fixedly connected to the inner wall of one side of the box.

[0013] In some embodiments, the spray support frame is rotatably connected to guide wheels on both sides, the inner side of the box is rotatably connected to an inner tensioning wheel, and the outer side of the box is rotatably connected to an outer tensioning wheel.

[0014] The embodiment of the present invention has the following advantages due to the adoption of the above technical solution:

[0015] 1. A device for spraying a waterproof and sound-permeable membrane coating that sprays evenly. Multiple double-headed screws rotate to drive a fixed plate to move downward, fixing a workpiece passing through one end of a slot while sealing the slot from the inside, temporarily isolating the interior of the box from the outside world. Spraying at this time can isolate external interference and improve the spraying effect.

[0016] 2. A waterproof and sound-permeable membrane coating spraying device with uniform spraying. When the fixed plate moves downward, the double-headed screw will synchronously drive the spray support frame to move upward, and use the suction cup to absorb the workpiece while supporting and fixing the workpiece, making the workpiece flatter during spraying and preventing wrinkles from affecting the spraying effect.

[0017] The above summary is for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the present invention will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or technical descriptions. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is the main structural diagram of the utility model;

[0020] Figure 2 The internal structure of the utility model Figure 1 ;

[0021] Figure 3 The internal structure of the utility model Figure 2 ;

[0022] Figure 4 This is a diagram of the installation structure of the fixed plate of the utility model;

[0023] Figure 5 This is a chain installation structure diagram of the present utility model.

[0024] Reference numerals:

[0025] 1. Box; 2. Workpiece; 3. Ultrasonic spraying main unit; 4. Exhaust fan; 5. Lifting motor; 6. Through slot; 7. Outer tensioning pulley; 8. Moving assembly; 9. Nozzle mechanism; 10. Drying mechanism; 11. Inner tensioning pulley; 12. Spraying support frame; 13. Double-headed screw; 14. Fixing plate; 15. Suction cup; 16. Guide wheel; 17. Vacuum pump; 18. Rubber pad; 19. Positioning boss; 20. Sprocket assembly; 21. Chain 1; 22. Chain 2. DETAILED DESCRIPTION

[0026] Hereinafter, only certain exemplary embodiments are briefly described. As will be appreciated by those skilled in the art, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are to be regarded as illustrative in nature and not restrictive.

[0027] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0028] Example 1:

[0029] like Figure 1-5 As shown, a device for spraying a uniform waterproof and sound-permeable membrane coating comprises a box body 1 with through slots 6 on both sides, a spray assembly is fixedly mounted on one side of the box body 1, a plurality of double-headed screws 13 are rotatably connected inside the box body 1, and a spray support frame 12 and a fixed plate 14 are respectively threadedly connected at both ends of the double-headed screw 13, one end of the plurality of spray support frames 12 is fixedly connected to a suction cup 15, the suction cup 15 is a ceramic microporous vacuum suction cup 15, one end of the fixed plate 14 is fixedly connected to a rubber pad 18, and one end of the rubber pad 18 and the suction cup 15 is slidably connected to a workpiece 2, and the workpiece 2 is driven to move by an external winding device;

[0030] The spraying assembly includes an ultrasonic spraying host 3, a moving assembly 8 and a nozzle mechanism 9. The ultrasonic spraying host 3 is fixedly connected to the outside of the box body 1, and both ends of the moving assembly 8 are fixedly connected to the inner wall of the box body 1. One end of the nozzle mechanism 9 is slidably connected to one side of the moving assembly 8. The nozzle mechanism 9 is an ultrasonic atomizing nozzle plus an air jet. The spraying material can be ultrasonically atomized and then sprayed onto the surface of the waterproof and sound-permeable membrane workpiece 2 below through the air jet. Because the liquid particles atomized by the ultrasonic nozzle are more evenly distributed, the rebound and splashing of the droplets are reduced, and the utilization rate of the spraying material is improved. One end of the nozzle mechanism 9 is fixedly connected to the box body 1 through a pipe;

[0031] Ultrasonic spraying needs to be carried out in a closed environment to prevent external airflow from affecting the normal adhesion of the ultrasonically atomized spray material to the workpiece 2. Therefore, when spraying, the multiple double-headed screws 13 are rotated to drive the fixed plate 14 to move downward, fixing the workpiece 2 passing through one end of the slot 6 while sealing the slot 6 from the inside, so that the interior of the box 1 is temporarily isolated from the outside world. At this time, spraying can be isolated from external interference and improve the spraying effect.

[0032] At the same time, the double-headed screw 13 will drive the spray support frame 12 to move upward, and use the suction cup 15 to absorb the workpiece 2 while supporting and fixing the workpiece 2, so that the workpiece 2 is flatter during spraying, preventing wrinkles from affecting the spraying effect.

[0033] In this embodiment, an exhaust fan 4 is fixedly connected to one side of the box body 1. The exhaust fan 4 can discharge the internal gas after one spraying is completed. A positioning boss 19 is fixedly connected to the inner side of the groove 6. The positioning boss 19 can cooperate with the fixing plate 14 to squeeze and fix the workpiece 2, and the rubber pad 18 can prevent the fixing plate 14 from damaging the workpiece 2 and play a buffering effect.

[0034] In this embodiment, one end of the double-headed screw 13 is fixedly connected to a sprocket group 20, and the sprocket group 20 is composed of upper and lower sprockets. The multiple sprocket groups 20 are connected by a chain 1 21 and a chain 2 22. The sprockets on both sides of the lower end are connected by a chain 1 21, and the two upper sprockets close to the ultrasonic spraying main unit 3 are connected by a chain 22. The lower side of the box body 1 is fixedly connected to a lifting motor 5, and the power output end of the lifting motor 5 is fixedly connected to the sprocket group 20 on one side;

[0035] The lifting motor 5 drives the multiple double-headed screws 13 to rotate simultaneously, so that the spray support frame 12 moves upward when the fixing plate 14 moves downward, and can be reversed to reset.

[0036] In this embodiment, a vacuum pump 17 is fixedly connected to the bottom of the box body 1, and the air inlet end of the vacuum pump 17 is fixedly connected to the lower side of the suction cup 15 through a pipe. The vacuum pump 17 is started before spraying, and the workpiece 2 is fixed flatly above the suction cup 15 through the suction cup 15.

[0037] In this embodiment, ultrasonic spraying needs to be carried out in a closed environment to prevent external airflow from affecting the normal adhesion of the ultrasonically atomized spray material to the workpiece 2. Therefore, during spraying, the multiple double-headed screws 13 are rotated to drive the fixing plate 14 to move downward, fixing the workpiece 2 passing through one end of the slot 6 while sealing the slot 6 from the inside, so that the interior of the box 1 is temporarily isolated from the outside world. At this time, spraying can be isolated from external interference and improve the spraying effect.

[0038] At the same time, the double-headed screw 13 drives the spray support frame 12 to move upward, and uses the suction cup 15 to absorb the workpiece 2 while supporting and fixing the workpiece 2, so that the workpiece 2 is flatter during spraying, and wrinkles are prevented from affecting the spraying effect;

[0039] The exhaust fan 4 can discharge the internal gas after one spraying is completed. The positioning boss 19 can cooperate with the fixing plate 14 to squeeze and fix the workpiece 2, and the rubber pad 18 can prevent the fixing plate 14 from damaging the workpiece 2 and play a buffering effect. The lifting motor 5 drives multiple double-headed screws 13 to rotate at the same time, allowing the spray support frame 12 to move upward when the fixing plate 14 moves downward, and can be reversed for reset.

[0040] Example 2:

[0041] A device for spraying a uniform waterproof and sound-permeable membrane coating. This embodiment makes the following improvements based on embodiment 1: Figure 1-5 As shown,

[0042] In this embodiment, a drying mechanism 10 is fixedly connected to the inner wall of one side of the box body 1. The drying mechanism 10 is a drying lamp, which can accelerate the drying of the droplets sprayed on the workpiece 2 to prevent damage caused by being squeezed by the fixed plate 14 above the groove 6 on the outlet side during the next spraying.

[0043] In this embodiment, the spray support frame 12 is rotatably connected to guide wheels 16 on both sides, the inner side of the box body 1 is rotatably connected to the inner tensioning wheel 11, and the outer side of the box body 1 is rotatably connected to the outer tensioning wheel 7. The guide wheels 16 cooperate with the inner tensioning wheel 11 and the outer tensioning wheel 7 to prevent the workpiece 2 from being scratched during movement, and can also prevent scratches and damage to the coating after spraying.

[0044] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various modifications or substitutions within the technical scope disclosed in the present invention, and such modifications or substitutions are intended to be within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be based on the scope of protection of the claims.

Claims

1. A device for spraying a uniform waterproof and sound-permeable membrane coating, comprising a box (1) with through slots (6) on both sides, characterized in that: A spraying assembly is fixedly installed on one side of the box (1), and a plurality of double-headed screws (13) are rotatably connected inside the box (1), and the two ends of the double-headed screws (13) are respectively threadedly connected to a spraying support frame (12) and a fixed plate (14), one end of the plurality of spraying support frames (12) is fixedly connected to a suction cup (15), and one end of the fixed plate (14) is fixedly connected to a rubber pad (18), and one end of the rubber pad (18) and the suction cup (15) is slidably connected to a workpiece (2).

2. A uniformly sprayed waterproof and sound-permeable membrane coating spraying device according to claim 1, characterized in that: The spraying assembly comprises an ultrasonic spraying main unit (3), a moving assembly (8) and a nozzle mechanism (9); the ultrasonic spraying main unit (3) is fixedly connected to the outside of the box (1); both ends of the moving assembly (8) are fixedly connected to the inner wall of the box (1); one end of the nozzle mechanism (9) is slidably connected to one side of the moving assembly (8); and one end of the nozzle mechanism (9) is fixedly connected to the box (1) through a pipeline.

3. The device for spraying a uniform waterproof and sound-permeable membrane coating according to claim 2, characterized in that: An exhaust fan (4) is fixedly connected to one side of the box body (1).

4. The device for spraying a uniform waterproof and sound-permeable membrane coating according to claim 1, characterized in that: A positioning boss (19) is fixedly connected to the inner side of the through groove (6).

5. The device for spraying a uniform waterproof and sound-permeable membrane coating according to claim 2, characterized in that: One end of the double-headed screw (13) is fixedly connected to a sprocket group (20), and the multiple sprocket groups (20) are connected to each other through a chain 1 (21) and a chain 2 (22). The lower side of the box (1) is fixedly connected to a lifting motor (5), and the power output end of the lifting motor (5) is fixedly connected to one side of the sprocket group (20).

6. The device for spraying a uniform waterproof and sound-permeable membrane coating according to claim 5, characterized in that: A vacuum pump (17) is fixedly connected to the bottom of the box (1), and an air inlet end of the vacuum pump (17) is fixedly connected to the bottom side of the suction cup (15) through a pipeline.

7. The device for spraying a uniform waterproof and sound-permeable membrane coating according to claim 6, characterized in that: A drying mechanism (10) is fixedly connected to the inner wall of one side of the box body (1).

8. The device for spraying a uniform waterproof and sound-permeable membrane coating according to claim 2, characterized in that: The spraying support frame (12) is rotatably connected to guide wheels (16) on both sides, the inner side of the box body (1) is rotatably connected to an inner tensioning wheel (11), and the outer side of the box body (1) is rotatably connected to an outer tensioning wheel (7).

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