Cleaning mechanism for hydrosol spraying nozzle of automobile instrument panel

Abstract

The utility model discloses a cleaning mechanism for a hydrosol spraying nozzle of an automobile instrument board, belongs to the technical field of automobile instrument board processing equipment, and solves the problems that the structure is complicated, the cost is higher, the glue nozzle cannot be cleaned at any time in a continuous automatic production process and liquid in a cleaning device cannot be prevented from splashing in the prior art. The device is characterized in that a rolling brush is installed in the main water tank, a liquid level sensor and a water supplementing pipe are installed on the inner wall of the water supplementing tank, a rectangular through hole is formed in the middle of an upper cover plate of the main water tank, and a first rubber sheet and a second rubber sheet which are used for sealing the rectangular through hole are installed on the lower surface of the rectangular through hole. The automatic cleaning device has the advantages that when the automatic cleaning device is used, after the hydrosol glue spraying nozzle is close to the rolling brush, the motor is started to drive the rolling brush to rotate to dip water to automatically clean the hydrosol glue spraying nozzle, the glue nozzle can be cleaned at any time in the automatic production process, and the automatic cleaning device is simple in structure, safe, reliable and convenient to operate. And the cost is low.

Description

Technical Field

[0001] This utility model belongs to the technical field of automotive dashboard processing equipment, and specifically relates to a cleaning mechanism for water-soluble adhesive spray nozzles for automotive dashboards. Background Technology

[0002] In existing technologies, water-based adhesive spraying equipment is used in the production of automotive dashboard adhesives. Water-based adhesives have advantages over hot melt adhesives under certain conditions due to their water solubility, ease of cleaning, and low spraying temperature. After spraying the dashboard with water-based adhesive, the spray nozzles need to be cleaned between spraying intervals. Currently, nozzle cleaning is done manually by workers. Manual cleaning is inefficient and cannot be performed during continuous automated production, failing to meet the needs of continuous spraying by water-based adhesive spraying equipment.

[0003] Utility model application CN201922340918.1 discloses a "cleaning device for a glue spreader nozzle". This utility model includes a housing, with a support box at the bottom. A motor is located inside the support box, and a rotating rod is located at the output end of the motor. The top of the rotating rod passes through the support box and the housing and extends into the inner cavity of the housing. A placement plate is fitted onto the bottom of the rotating rod surface, and a brush is provided on the rotating rod surface. A cover is located on the top of the housing, and a movable shaft is located at the bottom of the cover. The bottom of the movable shaft is adapted to the rotating rod. This utility model, through the cooperation of the housing, water inlet pipe, brush, rotating rod, placement plate, support box, movable shaft, cover, water outlet pipe, and motor, can automatically clean the nozzles during nozzle cleaning. However, this utility model has a complex structure and high cost. When cleaning the nozzle, it is necessary to manually open the box cover, put the nozzle on the rotating rod, and then close the box cover. The nozzle is fixed by the box cover and the placement plate before the nozzle can be cleaned with a brush. After cleaning, the box cover must be opened again to take out the nozzle. Therefore, this utility model can only automatically clean the nozzle when cleaning it. It cannot clean the nozzle at any time during the automated production process. That is, it cannot meet the requirement of automatic cleaning of the nozzle between water-soluble adhesive spraying operations, and therefore cannot meet the need for continuous spraying during the production of water-soluble adhesive spraying equipment.

[0004] The utility model application with application number CN201621186840.2 discloses "a cleaning device for a glue spinner nozzle". The utility model includes a box body and a cover plate that can be fastened to it. The box body has a cavity in the middle and a cleaning liquid storage tank is arranged around the cavity. The cover plate has a nozzle storage opening that allows the nozzle to pass through. The nozzle to be cleaned passes through the nozzle storage opening, so that the nozzle is placed above the liquid level in the cleaning liquid storage tank. The box body and the cover plate are fastened together to seal the nozzle in the cleaning device. Although this invention eliminates the need for manual opening of the cover to clean the nozzles, it utilizes an EBR liquid-filled cleaning device for the spin coater, placing the nozzles above the liquid and relying on the evaporation of the EBR liquid to clean them. Therefore, it involves immersing the nozzles for cleaning, which cannot quickly remove residual glue and is not suitable for continuous cleaning during automated production. Furthermore, while the specification states that the nozzles are "sealed in the cleaning device," the cover has a nozzle storage opening through which the nozzles pass. When the nozzles to be cleaned pass through this opening, they are positioned above the liquid level in the cleaning liquid storage tank. Even when the box and cover are closed, the nozzles cannot be completely sealed within the cleaning device, and the liquid inside the spin coater's nozzle cleaning device cannot be prevented from splashing out. Utility Model Content

[0005] The problem this utility model aims to solve is to overcome the shortcomings of the prior art and provide a cleaning mechanism for water-soluble adhesive spray nozzles in automotive dashboards that can clean the nozzles at any time during automated production, meet the continuous spraying requirements of water-soluble adhesive spraying equipment in automotive dashboard production, and has advantages in terms of simple structure, low cost, and subsequent maintenance.

[0006] The technical solution adopted by this utility model includes a main water tank, a replenishment water tank fixedly connected to the right side of the main water tank, the bottom of the main water tank and the bottom of the replenishment water tank being connected by a pipeline, a drain valve being installed on the pipeline, a motor being fixedly installed on the front side of the main water tank, a liquid level sensor and a replenishment pipe being installed on the inner wall of the replenishment water tank, a cover plate being installed on the top of the main water tank, a roller brush being installed inside the main water tank, the motor shaft of the motor passing through the front side of the main water tank and connected to the roller brush inside the main water tank, a rectangular through hole being provided in the middle of the cover plate, a first rubber sheet and a second rubber sheet being respectively installed on the lower surface of the rectangular through hole for sealing the rectangular through hole, and a flexible nozzle inlet and outlet gap being formed between the first rubber sheet and the second rubber sheet.

[0007] The cover plate is connected to the main water tank via a first cover plate buckle and a second cover plate buckle. A cover plate detection sensor is also installed on the first cover plate buckle.

[0008] The first and second rubber sheets are connected to the cover plate with countersunk bolts.

[0009] Compared with the prior art, the beneficial effects of this utility model are:

[0010] (1) This utility model has a roller brush installed in the main water tank. When in use, the roller brush is driven by a motor. Half of the roller brush is submerged in water. Water is added to the water tank through the water supply pipe. The water supply tank automatically replenishes water to the main water tank. After the water-soluble adhesive spray nozzle approaches the roller brush, the motor starts and drives the roller brush to rotate and dip in water to automatically clean the water-soluble adhesive spray nozzle. This saves labor costs. Because of the flexible nozzle inlet and outlet gap, the nozzle can be easily inserted and removed without opening the cover plate when cleaning the nozzle. Therefore, the nozzle can be cleaned at any time during the automated production process, which meets the cleaning needs of the water-soluble adhesive spray nozzle of the car dashboard in the production of car dashboard wrapping, improves the spraying quality of the product, and has a simple structure and low cost.

[0011] (2) This utility model uses a cover plate detection sensor to detect whether the cover plate exists. If the cover plate does not exist or is not properly covered, the motor rotation will stop. The motor rotation can only be started after the cover plate is properly covered, so it is safe and reliable.

[0012] (3) The cover plate and the main water tank of this utility model are connected by the first cover plate buckle and the second cover plate buckle, which facilitates the installation and disassembly of the cover plate. After the cover plate is closed, the nozzle to be cleaned is inserted into the main water tank through the flexible nozzle inlet and outlet gap between the first rubber sheet and the second rubber sheet. The first rubber sheet and the second rubber sheet rely on the elastic rebound to close the rectangular through hole, which plays a role in preventing liquid splashing when the roller brush rotates. Attached Figure Description

[0013] Figure 1 This is the front view of this utility model;

[0014] Figure 2 This is a right-side stereoscopic view of the present invention.

[0015] Figure 3 This is a left-side perspective view of the utility model with the cover plate removed.

[0016] In the picture:

[0017] 1. Main sink,

[0018] 2. Water supply tank,

[0019] 3. Motor

[0020] 4. Liquid level sensor,

[0021] 5. Water supply pipe,

[0022] 5-1. Inlet valve,

[0023] 6. Cover plate detection sensor,

[0024] 7-1. First cover plate clip,

[0025] 7-2. Second cover plate clip,

[0026] 8. Roller brush,

[0027] 9. Piping,

[0028] 10. Drain valve

[0029] 11. Cover plate,

[0030] 11-1. Rectangular through hole,

[0031] 12. First rubber sheet,

[0032] 13. Second rubber sheet,

[0033] 14. Countersunk bolts,

[0034] 15. Gap between the flexible nozzle and the nozzle;

[0035] 16. Connecting bolts. Detailed Implementation

[0036] The present invention will now be described in detail with reference to the accompanying drawings.

[0037] like Figures 1-3 As shown, the technical solution adopted by this utility model includes a main water tank 1, a replenishment water tank 2 fixedly connected to the right side of the main water tank 1, the bottom of the main water tank 1 and the bottom of the replenishment water tank 2 connected by a pipe 9, a drain valve 10 installed on the pipe 9, a motor 3 fixedly installed on the front side of the main water tank 1, the motor 3 being fixedly connected to the main water tank 1 by four connecting bolts 16, a roller brush 8 installed inside the main water tank 1, the motor shaft of the motor 3 passing through the front side of the main water tank 1 and connected to the roller brush 8 inside the main water tank 1, a liquid level sensor 4 and a replenishment water pipe 5 installed on the inner wall of the replenishment water tank 2, and a water inlet valve 5-1 installed on the replenishment water pipe 5.

[0038] A cover plate 11 is installed on the upper part of the main water tank 1. The cover plate 11 is connected to the main water tank 1 through a first cover plate buckle 7-1 and a second cover plate buckle 7-2. A cover plate detection sensor 6 is also installed on the first cover plate buckle 7-1. The cover plate 11 has a rectangular through hole 11-1 in the middle. A first rubber sheet 12 and a second rubber sheet 13 for sealing the rectangular through hole 11-1 are respectively installed on the lower surface of the rectangular through hole 11-1. The first rubber sheet 12 and the second rubber sheet 13 are connected to the cover plate 11 with countersunk bolts 14. A flexible nozzle inlet and outlet gap 15 is formed between the first rubber sheet 12 and the second rubber sheet 13. This flexible nozzle inlet and outlet gap 15 facilitates the nozzle inlet and outlet and prevents liquid in the main water tank 1 from splashing out.

[0039] During use, close the drain valve 10 and open the inlet valve 5-1 to replenish water to the replenishment tank 2 through the replenishment pipe 5. The water flows from the replenishment tank 2 to the main tank 1 through the pipe 9. According to the principle of communicating vessels, the liquid levels in the main tank 1 and the replenishment tank 2 are the same. The liquid level in the main tank 1 can be determined by detecting the liquid level in the replenishment tank 2 through the liquid level sensor 4. When one-third of the roller brush 8 is submerged in water, close the inlet valve 5-1 on the replenishment pipe 5 to stop replenishing water. At this time, cover the roller brush with the cover plate 11 to prevent liquid splashing when the roller brush rotates. The cover plate detection sensor 6 detects whether the cover plate 11 exists. If the cover plate 11 does not exist or is not properly covered, the motor 3 stops rotating. The roller brush can only rotate after the cover plate 11 exists and is properly covered. When the motor 3 is started to rotate, the nozzle to be cleaned is inserted into the main water tank 1 through the flexible nozzle inlet / outlet gap 15 between the first rubber sheet 12 and the second rubber sheet 13, and comes into contact with the roller brush 8 driven by the motor 3 to rotate. The roller brush 8 repeatedly contacts the nozzle to be cleaned by rotating, and the water solubility of the water-soluble adhesive can clean the water-soluble adhesive on the nozzle, completing the cleaning action. Due to the use of the flexible nozzle inlet / outlet gap 15, the nozzle can be cleaned at any time during the automated production process, meeting the continuous spraying requirements of the water-soluble adhesive spraying equipment in the production of automotive dashboards. The drain valve 10 is opened periodically to drain the liquid containing water-soluble adhesive after cleaning, and water is added again to continue cleaning the nozzle.

Claims

1. A cleaning mechanism for water-soluble adhesive spray nozzles on automotive dashboards, comprising a main water tank (1), a replenishment water tank (2) fixedly connected to the right side of the main water tank (1), the bottom of the main water tank (1) and the bottom of the replenishment water tank (2) being connected by a pipe (9), a drain valve (10) installed on the pipe (9), a motor (3) fixedly installed on the front side of the main water tank (1), a liquid level sensor (4) and a replenishment pipe (5) installed on the inner wall of the replenishment water tank (2), and a cover plate (11) installed on the top of the main water tank (1), characterized in that, A roller brush (8) is installed in the main water tank (1). The motor shaft of the motor (3) passes through the front side of the main water tank (1) and is connected to the roller brush (8) in the main water tank (1). A rectangular through hole (11-1) is provided in the middle of the cover plate (11). A first rubber sheet (12) and a second rubber sheet (13) for sealing the rectangular through hole (11-1) are respectively installed on the lower surface of the rectangular through hole (11-1). A flexible nozzle inlet and outlet gap (15) is formed between the first rubber sheet (12) and the second rubber sheet (13).

2. The cleaning mechanism for water-soluble adhesive spray nozzles in automotive dashboards according to claim 1, characterized in that, The cover plate (11) is connected to the main water tank (1) through the first cover plate buckle (7-1) and the second cover plate buckle (7-2). A cover plate detection sensor (6) is also installed on the first cover plate buckle (7-1).

3. A cleaning mechanism for a water-soluble adhesive spray nozzle in an automotive dashboard according to claim 1 or 2, characterized in that, The first rubber sheet (12) and the second rubber sheet (13) are connected to the cover plate (11) by countersunk bolts (14).

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