Coating spraying machine

Abstract

The utility model discloses a coating spraying machine which comprises a movable base, a coating spraying device and a coating spraying device. A machine box is installed at one end of the movable base, and a material box and an air compressor are installed in the machine box. The lifting bracket is mounted at the other end of the movable base; the spray gun comprises a gun body, a handle is formed at one end of the gun body, the handle is detachably installed at the top of the lifting support, a feeding bin is adjustably installed on the gun body in the length direction of the gun body, an electric driving mechanism used for driving the feeding bin is installed on the gun body, the feeding bin is provided with a front end and a rear end which are opposite, and a nozzle is installed at the front end of the feeding bin. The rear end of the feeding bin is connected to the material box through a material conveying pipe, and the air compressor is connected to the feeding bin through an air supply pipe. The distance sensor is used for collecting the distance of the to-be-sprayed surface and is mounted at the other end of the gun body; and the controller is connected to the distance sensor and the electric driving mechanism. According to the utility model, the problem that the thickness of a coating sprayed by the existing small spray coater with the nozzle is not uniform is solved.

Description

Technical Field

[0001] This utility model relates to the field of spraying machine technology, specifically to a paint spraying machine. Background Technology

[0002] Currently, painting work in the construction industry is still largely done manually, which is labor-intensive and involves many procedures. Painting at higher elevations sometimes requires scaffolding, planks, and high stools, causing inconvenience and low production efficiency. Existing small-scale spray painting machines have many shortcomings, mainly in uneven coating thickness. Because the pressure of the paint sprayed onto the wall varies depending on the distance, if the spray pressure is not adjusted in real time, the paint is prone to dripping, peeling, and other defects, affecting the quality of the paint application.

[0003] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, a paint spraying machine is provided to solve the problem of uneven coating thickness in existing small nozzle spraying machines.

[0005] To achieve the above objectives, a paint spraying machine is provided, comprising:

[0006] A mobile base, one end of which is fitted with a housing, and the housing contains a material bin and an air compressor;

[0007] A lifting bracket is installed at the other end of the movable base;

[0008] A spray gun includes a gun body, one end of which has a handle detachably mounted on the top of a lifting bracket. A feed chamber is adjustable along the length of the gun body. An electric drive mechanism for driving the feed chamber is mounted on the gun body. The feed chamber has a front end and a rear end opposite to each other. A nozzle is mounted on the front end of the feed chamber. The rear end of the feed chamber is connected to the material box via a feed pipe. An air compressor is connected to the feed chamber via an air supply pipe.

[0009] A distance sensor for collecting the distance to the surface to be sprayed is installed at the other end of the gun body;

[0010] The controller is connected to the distance sensor and the electric drive mechanism.

[0011] Furthermore, the lifting support includes:

[0012] Two sets of pipe assemblies are arranged opposite to each other. Each set of pipe assemblies includes multiple vertical pipes with different diameters. The larger diameter vertical pipe is movably fitted onto one end of the smaller diameter vertical pipe. The multiple vertical pipes are nested together in sequence. The vertical pipe with the largest diameter in the two sets of pipe assemblies is erected on the movable base. An inner liner plate is installed at the upper end of the vertical pipe with the smallest diameter in the two sets of pipe assemblies. The handle is detachably installed on the inner liner plate.

[0013] A connecting rod is provided between the vertical pipes of the same diameter in the two sets of pipe fittings;

[0014] The lifting jack is installed between two adjacent connecting rods.

[0015] Furthermore, the vertical pipe with the largest diameter of the two sets of pipe fittings is connected to the chassis via an ear plate.

[0016] Furthermore, the handle has a channel passing through it, one end of the feed pipe is connected to one end of the channel, and the other end of the channel is connected to the rear end of the feed hopper through a corrugated pipe. A feed switch is installed in the channel.

[0017] Furthermore, the air supply pipe is connected to the middle of the feed hopper via an air valve.

[0018] Furthermore, the electric drive mechanism includes:

[0019] A lead screw is rotatably mounted on the bottom of the gun body, and the lead screw is arranged along the length direction of the gun body;

[0020] A movable seat is connected to the feed hopper, and the movable seat has a threaded hole that is screwed into the lead screw.

[0021] The slider has a groove formed at the bottom of the gun body, the groove is arranged in the same direction as the lead screw, the upper part of the slider slides in the groove, and the lower part of the slider is connected to the movable base;

[0022] The motor is mounted on the gun body and is connected to the lead screw for transmission.

[0023] Furthermore, a guide rod is installed at the bottom of the gun body. The guide rod is arranged in the same direction as the lead screw. A guide hole is formed in the middle of the slider, and the guide rod slides in the guide hole.

[0024] The beneficial effects of this invention are as follows: the paint spraying machine of this invention uses a distance sensor installed at the front end of the spray gun to collect the real-time distance from the nozzle to the surface to be sprayed. Based on this real-time distance, the controller controls the spray gun via a motor to ensure that the distance between the spray gun and the surface to be sprayed is always a preset distance, thereby enabling the paint sprayed from the spray gun to form a uniform coating on the surface to be sprayed. In addition, the spray gun is detachably mounted on a lifting bracket, which also ensures a uniform coating thickness when spraying small areas of the surface to be sprayed. Attached Figure Description

[0025] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0026] Figure 1 This is a schematic diagram of the structure of the paint spraying machine according to an embodiment of the present invention.

[0027] Figure 2 This is a structural schematic diagram of the lifting bracket according to an embodiment of the present utility model.

[0028] Figure 3 This is a schematic diagram of the structure of the spray gun according to an embodiment of the present utility model. Detailed Implementation

[0029] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant utility model and not intended to limit the scope of the utility model. Furthermore, it should be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings.

[0030] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0031] Reference Figures 1 to 3 As shown, this utility model provides a paint spraying machine, including: a movable base 1, a lifting bracket 2, and a spray gun 3.

[0032] In this embodiment, a plurality of rollers are mounted on the bottom of the movable base 1. The movable base is rectangular. Rollers are mounted at the four corners of the movable base. The movable base has one end and another end along its length. A housing 11 is mounted on one end of the movable base 1. A material bin and an air compressor are installed inside the housing 11. The material bin contains paint.

[0033] The lifting bracket 2 is installed at the other end of the movable base 1.

[0034] The spray gun 3 includes a gun body 31 and a handle 32. The handle 32 is formed at one end of the gun body 31. The handle 32 is detachably mounted on the top of the lifting bracket 2. A feed chamber 34 is adjustablely mounted on the gun body 31 along its length. An electric drive mechanism 33 is mounted on the gun body 31. The electric drive mechanism 33 drives the feed chamber 34 to move along the length of the gun body.

[0035] The feed chamber 34 has a front end and a rear end facing each other. The front end of the feed chamber is positioned facing the other end of the gun body. A nozzle 35 is installed at the front end of the feed chamber 34. The rear end of the feed chamber 34 is connected to the material box via a feed pipe. An air compressor is connected to the feed chamber 34 via an air supply pipe.

[0036] Distance sensor 4 is mounted on the other end of the gun body 31. Distance sensor 4 is used to collect the distance to the surface to be sprayed.

[0037] The controller is connected to the distance sensor 4 and the electric drive mechanism 33.

[0038] See Figure 2 As shown, the lifting support 2 includes: two sets of pipe fittings, a connecting rod 22, and a lifting jack 23.

[0039] In this embodiment, two sets of pipe fittings are arranged opposite each other. Specifically, the pipe fittings include multiple vertical pipes 21 with different diameters. The larger diameter vertical pipe 21 is movably fitted onto one end of the smaller diameter vertical pipe 21. The multiple vertical pipes 21 are nested together in sequence. The vertical pipe 21 with the largest diameter in both sets of pipe fittings is erected on the movable base 1. An inner liner plate 24 is installed at the upper end of the vertical pipe 21 with the smallest diameter in both sets of pipe fittings. A handle 32 is detachably installed on the inner liner plate.

[0040] A connecting rod 22 connects the vertical pipes 21 of the same diameter in the two sets of pipe fittings.

[0041] The lifting jack 23 is installed between two adjacent connecting rods 22. The controller signal is connected to the lifting jack.

[0042] The vertical tube 21 with the largest diameter of the two sets of tube assemblies is connected to the chassis 11 via an ear plate.

[0043] In this embodiment, the pipe assembly includes three vertical pipes: a large-diameter vertical pipe, a medium-diameter vertical pipe, and a small-diameter vertical pipe. The lower end of the medium-diameter vertical pipe is movably inserted into the large-diameter vertical pipe. The lower end of the small-diameter vertical pipe is movably inserted into the upper end of the medium-diameter vertical pipe.

[0044] See Figure 3 As shown, the handle 32 has a channel extending through it. One end of the feed pipe is connected to one end of the channel. The other end of the channel is connected to the rear end of the feed hopper 34 via a bellows pipe 322. A feed switch 321 is installed inside the channel.

[0045] The air supply pipe is connected to the middle of the feed hopper 34 via an air valve 341.

[0046] Continue reading Figure 3 As shown, the electric drive mechanism 33 includes a lead screw 331, a moving base 332, a slider 333, and a motor.

[0047] A lead screw 331 is rotatably mounted on the bottom of the gun body 31. The lead screw 331 is arranged along the length of the gun body 31. A movable seat 332 is connected to the top of the feed chamber 34, and the movable seat 332 has a threaded hole. The threaded hole of the movable seat 332 is screwed into the lead screw 331. A sliding groove is formed on the bottom of the gun body 31. The sliding groove is arranged in the same direction as the lead screw 331. The upper part of the slider 333 slides in the sliding groove. The lower part of the slider 333 is connected to the movable seat 332.

[0048] The motor is mounted on the gun body 31 and is connected to the lead screw 331 for transmission.

[0049] A guide rod is also installed at the bottom of the gun body 31. The guide rod is arranged in the same direction as the lead screw 331. A guide hole is formed in the middle of the slider 333. The guide rod slides in the guide hole.

[0050] In this embodiment, a lower flap is formed at the other end of the gun body, and the two ends of the lead screw are rotatably mounted on the lower flap and the upper end of the handle, respectively. A guide rod connects the upper end of the handle and the lower flap.

[0051] When using the paint spraying machine of this invention, the movable base is moved to the wall, and the nozzle is aligned with the surface to be sprayed. A distance sensor collects the real-time distance from the surface to be sprayed. The controller acquires the real-time distance from the distance sensor. Based on the real-time distance, the controller controls the distance from the nozzle to the surface via a motor, ensuring that the distance between the nozzle and the surface remains at a preset distance.

[0052] Then, control the start of the air compressor and the delivery pump in the hopper, and simultaneously open the feed switch and air valve. The paint is fed into the hopper through the delivery pipeline, and the paint in the hopper is pressurized by high-pressure air.

[0053] Under high pressure, the paint is evenly sprayed from the feed hopper through nozzles. The nozzles are flat and have a wide spray area, which facilitates the formation of a large and uniform spray surface by the airflow generated by the air pump.

[0054] During the spraying process, the controller uses a motor to control the distance between the nozzle and the surface to be sprayed, based on the real-time distance collected by the distance sensor. This ensures that the distance between the nozzle and the surface to be sprayed remains at a preset distance. Because the nozzle maintains this preset distance, the thickness of the coating applied to the surface is uniform.

[0055] In addition, for some localized areas to be sprayed, the spray gun is removed from the lifting bracket. The spray gun is then held by hand and aimed at the surface to be sprayed. During spraying, the nozzle can be controlled via a controller to maintain a preset distance from the surface, ensuring a consistent coating thickness across the localized areas.

[0056] This invention relates to a paint spraying machine. A distance sensor is installed at the front end of the spray gun to collect the real-time distance between the nozzle and the surface to be sprayed. Based on this real-time distance, the controller uses a motor to control the spray gun, ensuring that the distance between the spray gun and the surface is always a preset distance. This results in the paint sprayed from the gun forming a uniform coating on the surface. Furthermore, the spray gun is detachably mounted on a lifting bracket, ensuring uniform coating thickness even when spraying small areas.

[0057] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in this application is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A paint spraying machine, characterized in that, include: A mobile base, one end of which is fitted with a housing, and the housing contains a material bin and an air compressor; A lifting bracket is installed at the other end of the movable base; A spray gun includes a gun body, one end of which has a handle detachably mounted on the top of a lifting bracket. A feed chamber is adjustable along the length of the gun body. An electric drive mechanism for driving the feed chamber is mounted on the gun body. The feed chamber has a front end and a rear end opposite to each other. A nozzle is mounted on the front end of the feed chamber. The rear end of the feed chamber is connected to the material box via a feed pipe. An air compressor is connected to the feed chamber via an air supply pipe. A distance sensor for collecting the distance to the surface to be sprayed is installed at the other end of the gun body; The controller is connected to the distance sensor and the electric drive mechanism.

2. The paint spraying machine according to claim 1, characterized in that, The lifting support includes: Two sets of pipe assemblies are arranged opposite to each other. Each set of pipe assemblies includes multiple vertical pipes with different diameters. The larger diameter vertical pipe is movably fitted onto one end of the smaller diameter vertical pipe. The multiple vertical pipes are nested together in sequence. The vertical pipe with the largest diameter in the two sets of pipe assemblies is erected on the movable base. An inner liner plate is installed at the upper end of the vertical pipe with the smallest diameter in the two sets of pipe assemblies. The handle is detachably installed on the inner liner plate. A connecting rod is provided between the vertical pipes of the same diameter in the two sets of pipe fittings; The lifting jack is installed between two adjacent connecting rods.

3. The paint spraying machine according to claim 2, characterized in that, The vertical pipe with the largest diameter of the two sets of pipe fittings is connected to the chassis via an ear plate.

4. The paint spraying machine according to claim 1, characterized in that, The handle has a channel that passes through it. One end of the feed pipe is connected to one end of the channel, and the other end of the channel is connected to the rear end of the feed hopper through a corrugated pipe. A feed switch is installed in the channel.

5. The paint spraying machine according to claim 1, characterized in that, The air supply pipe is connected to the middle of the feed hopper via an air valve.

6. The paint spraying machine according to claim 1, characterized in that, The electric drive mechanism includes: A lead screw is rotatably mounted on the bottom of the gun body, and the lead screw is arranged along the length direction of the gun body; A movable seat is connected to the feed hopper, and the movable seat has a threaded hole that is screwed into the lead screw. The slider has a groove formed at the bottom of the gun body, the groove is arranged in the same direction as the lead screw, the upper part of the slider slides in the groove, and the lower part of the slider is connected to the movable base; The motor is mounted on the gun body and is connected to the lead screw for transmission.

7. The paint spraying machine according to claim 6, characterized in that, A guide rod is also installed at the bottom of the gun body. The guide rod is arranged in the same direction as the lead screw. A guide hole is formed in the middle of the slider, and the guide rod slides in the guide hole.

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