Spraying device for PU foaming breakdown resistant sound insulation coating

Abstract

The utility model discloses a PU foaming breakdown resistant sound insulation coating spraying device, and relates to the technical field of sound insulation coating spraying. Comprising a protective cover, a spraying gun is fixedly mounted in the middle of the protective cover, a mounting bin is fixedly mounted on the upper surface of the protective cover, a fan is fixedly mounted in the mounting bin, a conveying pipe is arranged between the mounting bin and the protective cover, and sealing mechanisms are arranged at the edges of the two ends of the protective cover. The sealing mechanism comprises a servo electric push rod fixed to the protective cover, the lower end of the servo electric push rod is connected with a sealing gate plate, a sealing strip is arranged on the edge of the sealing gate plate, an air inlet hole is formed in the surface of the sealing gate plate, and a filtering mechanism is fixedly installed at the air inlet hole. According to the PU foaming breakdown resistant sound insulation coating spraying device, the sealing mechanism can block the two ends of the protective cover, and the filter screen on the filter mechanism can filter gas entering the protective cover, so that dust and other impurities are prevented from polluting the coating.

Description

Technical Field

[0001] The utility model relates to the technical field of sound insulation coating spraying, in particular to a sound insulation coating spraying device resistant to PU foam breakdown. Background Technique

[0002] When producing automobile carpets, it is necessary to spray a sound insulation coating resistant to PU foam breakdown. However, when the current spraying device is in use, the sprayed paint is easy to pollute the workshop environment, and it is easy to cause operators to inhale the paint, causing damage to the operators' bodies. Moreover, dust and other impurities in the workshop environment are easy to be mixed with the sprayed paint on the coating, resulting in a reduction in the qualified rate of coating production.

[0003] Publication No. CN216459699U discloses a sound insulation coating spraying device for car carpets resistant to PU foam breakdown, including an operating table. The top of the operating table is fixedly connected with a mounting frame. Two groups of limit blocks are symmetrically arranged at the top of the operating table, and the limit blocks are located on both sides of the mounting frame. The top of the limit block is provided with a limit groove, and a limit slider is slidably connected inside the limit groove. The above problems can be solved.

[0004] The above device uses a fan to extract harmful gases in the protective cover. However, during the air extraction process, a negative pressure will be formed in the protective cover. After the negative pressure is formed in the protective cover, dust and other impurities in the outside world are easy to enter the protective cover through the gaps at both ends of the protective cover, and it is still possible to pollute the coating. Summary of the Utility Model

[0005] The main purpose of the utility model is to provide a sound insulation coating spraying device resistant to PU foam breakdown, which can effectively solve the problems mentioned in the background technique.

[0006] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0007] A sound insulation coating spraying device resistant to PU foam breakdown, including a protective cover. A spraying gun is fixedly installed at the middle position of the protective cover. An installation bin is fixedly installed on the upper surface of the protective cover. A fan is fixedly installed in the installation bin. A conveying pipe is provided between the installation bin and the protective cover. Sealing mechanisms are provided at the edges of both ends of the protective cover. The sealing mechanism includes a servo electric push rod fixed on the protective cover. A sealing gate plate is connected to the lower end of the servo electric push rod. A sealing strip is provided at the edge of the sealing gate plate. Air inlet holes are formed on the surface of the sealing gate plate. A filtering mechanism is fixedly installed at the air inlet holes. The filtering mechanism includes a mounting ring seat fixed at the air inlet holes. A filter screen is arranged inside the mounting ring seat. A positioning screw rod is fixedly installed at the middle position inside the mounting ring seat. A threaded sleeve is arranged on the positioning screw rod. A cleaning scraper is movably installed on the threaded sleeve, and the cleaning scraper can rotate on the threaded sleeve.

[0008] Furthermore, the sealing mechanism further includes a positioning support leg fixed on the servo electric push rod and a connecting support leg fixed on the sealing gate plate. A positioning through hole is provided on the positioning support leg, and the servo electric push rod can drive the connecting support leg to move up and down.

[0009] Furthermore, a bolt is provided in the positioning through hole, and the positioning support leg is fixed on the protective cover by the bolt.

[0010] Furthermore, the servo electric push rod is installed on the protective cover through the positioning support leg, the sealing gate plate is connected to the lower end of the servo electric push rod through the connecting support leg, and the sealing gate plate is movably installed at the two ends of the protective cover through the servo electric push rod. During the up and down movement of the connecting support leg, it will drive the sealing gate plate to move up and down.

[0011] Furthermore, the filtering mechanism further includes a sealing pressure ring arranged in the mounting ring seat and a movable sliding ring fixed on the cleaning scraper. The movable sliding ring can make the cleaning scraper rotate.

[0012] Furthermore, a notch is provided at the middle position of the filter net, and the positioning screw rod passes through the filter net through the notch. The gas entering the protective cover will be filtered by the filter net.

[0013] Furthermore, the filter net is restricted in the mounting ring seat by the sealing pressure ring, the cleaning scraper is movably installed on the threaded sleeve through the movable sliding ring, the cleaning scraper is installed in the mounting ring seat through the threaded sleeve, and the end of the cleaning scraper abuts against the surface of the filter net. After rotating the movable sliding ring, it will drive the cleaning scraper to rotate along the filter net.

[0014] Compared with the prior art, the present utility model has the following beneficial effects:

[0015] After the workpiece is conveyed below the spraying gun, the servo electric push rod can be controlled to extend. After the servo electric push rod extends, it will drive the sealing gate plate on the positioning support leg to move downward, so that the sealing gate plate blocks both ends of the protective cover. After the sealing gate plate blocks both ends of the protective cover, it can not only prevent the paint from spreading out, but also prevent dust and other impurities from entering the protective cover during the spraying process.

[0016] When the harmful gas in the protective cover is extracted, the outside gas can enter the protective cover through the air inlet hole. The gas entering the protective cover will be filtered by the filter net to prevent dust and other impurities from entering the protective cover and polluting the coating. And the user can rotate the movable sliding ring. After rotating the movable sliding ring, it will drive the cleaning scraper to rotate along the filter net, which is convenient for the user to clean the filter net. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0018] Figure 2 For the Figure 1 enlarged view of part A in the

[0019] Figure 3 sealing mechanism schematic diagram of the present utility model;

[0020] Figure 4 filtering mechanism schematic diagram of the present utility model.

[0021] In the figure: 1, protective cover; 2, conveying pipe; 3, installation bin; 4, fan; 5, spraying gun; 6, sealing mechanism; 601, servo electric push rod; 602, positioning support foot; 603, positioning through hole; 604, sealing gate plate; 605, sealing strip; 606, air inlet hole; 607, connecting support foot; 7, filtering mechanism; 701, installation ring seat; 702, sealing pressure ring; 703, threaded sleeve; 704, cleaning scraper; 705, movable sliding ring; 706, filter net; 707, positioning screw. Specific embodiments

[0022] In order to make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0023] As Figure 1 Figure 2 shown, the sound insulation coating spraying device resistant to PU foam breakdown includes a protective cover 1. A spraying gun 5 is fixedly installed at the middle position of the protective cover 1. An installation bin 3 is fixedly installed on the upper surface of the protective cover 1. A fan 4 is fixedly installed in the installation bin 3. A conveying pipe 2 is provided between the installation bin 3 and the protective cover 1. Sealing mechanisms 6 are provided at the edges of both ends of the protective cover 1. The sealing mechanism 6 includes a servo electric push rod 601 fixed on the protective cover 1. The lower end of the servo electric push rod 601 is connected with a sealing gate plate 604. A sealing strip 605 is provided at the edge of the sealing gate plate 604. An air inlet hole 606 is opened on the surface of the sealing gate plate 604. A filtering mechanism 7 is fixedly installed at the air inlet hole 606. The sealing mechanism 6 can block both ends of the protective cover 1, and the filter net 706 on the filtering mechanism 7 will filter the gas entering the protective cover 1 to prevent impurities such as dust from contaminating the coating.

[0024] As Figure 3 shown, sealing mechanisms 6 are provided at the edges of both ends of the protective cover 1. The sealing mechanism 6 includes a servo electric push rod 601 fixed on the protective cover 1. The lower end of the servo electric push rod 601 is connected with a sealing gate plate 604. A sealing strip 605 is provided at the edge of the sealing gate plate 604. An air inlet hole 606 is opened on the surface of the sealing gate plate 604. The sealing mechanism 6 further includes a positioning support foot 602 fixed on the servo electric push rod 601 and a connecting support foot 607 fixed on the sealing gate plate 604. A positioning through hole 603 is opened on the positioning support foot 602.

[0025] Specifically, after the workpiece is conveyed below the spray gun 5, the servo electric push rod 601 can be controlled to extend. After the servo electric push rod 601 extends, it will drive the sealing gate plate 604 on the positioning support leg 602 to move downward, so that the sealing gate plate 604 blocks both ends of the protective cover 1. After the sealing gate plate 604 blocks both ends of the protective cover 1, it can prevent the paint from spreading out and prevent impurities such as dust from entering the protective cover 1 during the spraying process.

[0026] As Figure 4 shown, the filtering mechanism 7 includes a mounting ring seat 701 fixed at the air inlet hole 606. A filter net 706 is provided inside the mounting ring seat 701. A positioning screw rod 707 is fixedly installed at the middle position inside the mounting ring seat 701. A threaded sleeve 703 is provided on the positioning screw rod 707. A cleaning scraper 704 is movably installed on the threaded sleeve 703. The filtering mechanism 7 further includes a sealing pressure ring 702 provided inside the mounting ring seat 701 and a movable sliding ring 705 fixed on the cleaning scraper 704.

[0027] Specifically, when the harmful gas inside the protective cover 1 is extracted, the outside gas can enter the protective cover 1 through the air inlet hole 606. The gas entering the protective cover 1 will be filtered by the filter net 706 to prevent impurities such as dust from entering the protective cover 1 and contaminating the coating. And the user can rotate the movable sliding ring 705. After rotating the movable sliding ring 705, it will drive the cleaning scraper 704 to rotate along the filter net 706, which is convenient for the user to clean the filter net 706. At the same time, after loosening the sealing pressure ring 702 and the threaded sleeve 703, the filter net 706 can be taken out and replaced.

[0028] It should be noted that the present utility model is a sound insulation coating spraying device resistant to PU foam breakdown. During actual use, first, the workpiece is conveyed under the spraying gun 5 by the conveyor belt. After the workpiece is conveyed under the spraying gun 5, the servo electric push rod 601 can be controlled to extend. Since the sealing gate plate 604 is connected to the lower end of the servo electric push rod 601 through the connecting support leg 607, and the sealing gate plate 604 is movably installed at the two ends of the protective cover 1 through the servo electric push rod 601. After the servo electric push rod 601 extends, it will drive the sealing gate plate 604 on the positioning support leg 602 to move downward, so that the sealing gate plate 604 blocks the two ends of the protective cover 1. After the sealing gate plate 604 blocks the two ends of the protective cover 1, the workpiece can be sprayed by the spraying gun 5. During the spraying process, the fan 4 can be started to extract the harmful gases in the protective cover 1. When the harmful gases in the protective cover 1 are extracted, the external gases can enter the protective cover 1 through the air inlet hole 606. The gases entering the protective cover 1 will be filtered by the filter net 706 to prevent dust and other impurities from entering the protective cover 1 and contaminating the coating. At the same time, the user can rotate the movable slip ring 705. Since the cleaning scraper 704 is movably installed on the threaded sleeve 703 through the movable slip ring 705, the cleaning scraper 704 is installed in the mounting ring seat 701 through the threaded sleeve 703, and the end of the cleaning scraper 704 abuts against the surface of the filter net 706. After rotating the movable slip ring 705, it will drive the cleaning scraper 704 to rotate along the filter net 706, which is convenient for the user to clean the filter net 706. After the workpiece spraying is completed, the fan 4 can be turned off and the servo electric push rod 601 can be controlled to retract, so that the sealing gate plate 604 is opened. After the sealing gate plate 604 is opened, the workpiece can be conveyed out by the conveyor belt.

[0029] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art 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 utility model shall be included in the protection scope of the present utility model.

Claims

1. A PU foaming-resistant sound insulation coating spraying device comprises a protective cover (1), a spray gun (5) is fixedly installed in the middle of the protective cover (1), a mounting bin (3) is fixedly installed on the upper surface of the protective cover (1), a fan (4) is fixedly installed in the mounting bin (3), and a conveying pipe (2) is provided between the mounting bin (3) and the protective cover (1), characterized in that: The protective cover (1) is provided with sealing mechanisms (6) at the edges of both ends. The sealing mechanisms (6) include a servo electric push rod (601) fixed on the protective cover (1). The lower end of the servo electric push rod (601) is connected to a sealing gate plate (604). The edge of the sealing gate plate (604) is provided with a sealing strip (605). The surface of the sealing gate plate (604) is provided with an air inlet hole (606). A filter mechanism (7) is fixedly installed at the air inlet hole (606). The filter mechanism (7) includes a mounting ring seat (701) fixed at the air inlet hole (606). A filter net (706) is provided in the mounting ring seat (701). A positioning screw (707) is fixedly installed in the middle position inside the mounting ring seat (701). A threaded sleeve (703) is provided on the positioning screw (707). A cleaning scraper (704) is movably installed on the threaded sleeve (703).

2. The PU foaming-resistant sound insulation coating spraying device according to claim 1 is characterized in that: The sealing mechanism (6) further comprises a positioning support foot (602) fixed on the servo electric push rod (601) and a connecting support foot (607) fixed on the sealing gate plate (604), and a positioning through hole (603) is provided on the positioning support foot (602).

3. The PU foaming-resistant sound insulation coating spraying device according to claim 2 is characterized in that: A bolt is arranged in the positioning through hole (603), and the positioning support foot (602) is fixed to the protective cover (1) by means of the bolt.

4. The PU foaming-resistant sound insulation coating spraying device according to claim 3 is characterized in that: The servo electric push rod (601) is mounted on the protective cover (1) via a positioning support leg (602); the sealing gate plate (604) is connected to the lower end of the servo electric push rod (601) via a connecting support leg (607); and the sealing gate plate (604) is movably mounted on the edges of both ends of the protective cover (1) via the servo electric push rod (601).

5. The PU foaming-resistant sound insulation coating spraying device according to claim 4 is characterized in that: The filtering mechanism (7) also includes a sealing pressure ring (702) arranged in the mounting ring seat (701) and a movable sliding ring (705) fixed on the cleaning scraper (704).

6. The PU foaming-resistant sound insulation coating spraying device according to claim 5 is characterized in that: A notch is provided in the middle of the filter screen (706), and the positioning screw (707) passes through the filter screen (706) through the notch.

7. The PU foaming-resistant sound insulation coating spraying device according to claim 6 is characterized in that: The filter screen (706) is restricted in the mounting ring seat (701) by a sealing pressure ring (702), and the cleaning scraper (704) is movably mounted on the threaded sleeve (703) through a movable sliding ring (705). The cleaning scraper (704) is mounted in the mounting ring seat (701) through the threaded sleeve (703), and the end of the cleaning scraper (704) contacts the surface of the filter screen (706).

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