Device for automatically relieving pressure of self-spraying paint tank and collecting residual self-spraying paint in tank

Abstract

The utility model discloses a device for automatically relieving pressure of a self-spraying paint tank and collecting residual self-spraying paint in the tank, and relates to the technical field of automobile paint spraying. The shell is divided into an upper layer and a lower layer through a middle clamping plate, a self-painting model groove, a liquid receiving box and an air cylinder are installed in the upper layer, the self-painting model groove is composed of a plurality of hollow cylinders, the liquid receiving box is arranged below the self-painting model groove, a plurality of ejector pins corresponding to the cylinders are installed in the liquid receiving box, and the bottom of the liquid receiving box is connected with the extending end of the air cylinder. The air cylinder is externally connected with an air source through an air source connector. A switch button for controlling the air source is installed on the outer wall of the shell. A waste liquid collecting box is installed in the lower layer and communicated with the liquid receiving box through a hose, and bottom feet are installed at the four corners of the bottom of the shell. The device is simple and convenient to operate, realizes the functions of automatic pressure relief and automatic waste liquid collection of the self-spray paint tank in a closed device, avoids the risks of explosion and self-spray paint pollution caused by manual operation, improves the working efficiency, and has a wide application prospect.

Description

Technical Field

[0001] This utility model relates to the field of automotive painting technology, specifically to a device for automatic pressure relief of spray paint cans and collection of residual spray paint inside the cans. Background Technology

[0002] Spray paint is frequently used for corrosion protection of workpiece surfaces during automotive parts manufacturing and machining. However, all used spray paint cans are classified as hazardous waste. Currently, such hazardous waste is generally disposed of by incineration. However, due to the pressure inside the spray paint cans, a small-scale "explosion" may occur during the incineration process.

[0003] Professional hazardous waste disposal units generally require users to depressurize the cans before transporting and disposing of them. However, users typically depressurize spray paint cans by piercing them with nails. This piercing process poses a potential explosion risk, and any remaining paint inside can easily splatter and contaminate the ground. Therefore, considering both safety and environmental factors, it is essential to design a device for automatically depressurizing spray paint cans and collecting residual paint to address the safety and environmental risks associated with spray paint can disposal. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a device for automatic pressure relief and collection of residual spray paint in spray paint cans. The device has a reasonable structural design, is easy to operate, and realizes the functions of automatic pressure relief and automatic collection of waste liquid. It avoids the risks of explosion and spray paint pollution caused by manual operation, while improving work efficiency. It is highly practical and easy to promote and use.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: A device for automatic pressure relief and collection of residual spray paint in a spray paint can, comprising a shell, a spray paint model tank, a liquid receiving box, a cylinder, ejector pins, a waste liquid collection box, and feet. The shell is divided into upper and lower layers by a middle clamp. The upper layer of the shell houses the spray paint model tank, the liquid receiving box, and the cylinder. The spray paint model tank is composed of multiple hollow cylinders. An open liquid receiving box is provided below the spray paint model tank. Multiple ejector pins are installed in the liquid receiving box, and the number and position of the ejector pins correspond to the cylinders of the spray paint model tank. The bottom of the liquid receiving box is connected to the protruding end of the cylinder. The cylinder is connected to an external air source through an air source connector. A switch button for controlling the air source is installed on the outer wall of the shell. The lower layer of the shell houses the waste liquid collection box, which is connected to the liquid receiving box through a hose. Feet are installed at the four corners of the bottom of the shell.

[0006] Preferably, the middle plate and the bottom plate of the outer shell are both made of steel bearing plates, and the bottom of the steel bearing plates are fixedly installed with crossbeams to increase the load-bearing capacity; the top of the outer shell is equipped with a top cover, which is a two-section steel plate, one section is a fixed cover that cannot be flipped vertically, and the other section is a rotatable flip cover. The flip cover is connected by a fixing pin to prevent the top cover from being opened during pressure relief operation.

[0007] Preferably, the self-spraying paint model tank is welded and fixed on a support beam, and multiple hollow cylinders are welded on the support beam. Each cylinder has a hole in the middle of its bottom surface, and a fan-shaped baffle with the same length as all the cylinders is welded to the top side of the hollow cylinder.

[0008] Preferably, the length of the liquid receiving box is greater than the length of each cylinder in parallel. The two sides of the liquid receiving box extend from both ends of the paint spraying mold groove. The bottom of the liquid receiving box is a reinforcing steel plate, and each ejector pin is fixed in the middle of the reinforcing steel plate. The reinforcing steel plate of the liquid receiving box has a collection hole, and the collection hole of the liquid receiving box is sealed and connected to the waste liquid collection box below through a flexible tube.

[0009] Preferably, the outer shell has a double door on the outer wall of the waste liquid collection box placed in the lower layer, which facilitates the removal and placement of the waste liquid collection box.

[0010] The beneficial effects of this utility model are: This device is easy to operate, realizes the function of automatic depressurization of the spray paint can in a sealed device and automatic collection of waste liquid, avoids the risk of explosion and spray paint pollution caused by manual operation, and improves work efficiency. It has broad application prospects. Attached Figure Description

[0011] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments;

[0012] Figure 1 This is a schematic diagram of the structure of this utility model. Detailed Implementation

[0013] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0014] Reference Figure 1The specific embodiment adopts the following technical solution: A device for automatic pressure relief and collection of residual spray paint in a spray paint can, including a shell 1, a spray paint model tank 2, a liquid receiving box 3, a cylinder 4, a ejector pin 5, a waste liquid collection box 6, and a base 7. The shell 1 is divided into upper and lower layers by a middle clamp. The spray paint model tank 2, the liquid receiving box 3, and the cylinder 4 are installed in the upper layer of the shell 1. The spray paint model tank 2 is composed of multiple hollow cylinders, and a bottom is provided below the spray paint model tank 2. The liquid receiving box 3 has an open opening, and multiple ejector pins 5 are installed in the liquid receiving box 3. The number and position of the ejector pins 5 correspond to the cylinders of the self-spraying paint model tank 2. The bottom of the liquid receiving box 3 is connected to the protruding end of the cylinder 4. The cylinder 4 is connected to an external air source through an air source connector. A switch button 9 for controlling the air source is installed on the outer wall of the outer shell 1. A waste liquid collection box 6 is installed in the lower layer of the outer shell 1. The waste liquid collection box 6 is connected to the liquid receiving box 3 through a hose 8. The bottom corners of the outer shell 1 are equipped with feet 7.

[0015] It is worth noting that the middle plate and the bottom plate of the outer shell 1 are both made of steel bearing plates, and the bottom of the steel bearing plates are fixedly installed with crossbeams to increase the load-bearing capacity; the top of the outer shell 1 is equipped with a top cover 10. The top cover needs to be opened when the self-spraying paint is placed in the slot, and the top cover needs to be closed when depressurization is implemented; the top cover 10 is a two-section steel plate, one section is a fixed cover that cannot be flipped vertically, and the other section is a rotatable flip cover. The flip cover is connected by a fixing pin, which can prevent the top cover from being opened during depressurization operation.

[0016] It is worth noting that the spray paint model slot 2 is used to place and fix the spray paint cans that need to be depressurized in the slot, so as to facilitate depressurization of multiple spray paint cans at the same time. The spray paint model slot 2 is welded and fixed on the support beam 11. Multiple hollow cylinders are welded on the support beam 11. There is a hole in the middle of the bottom surface of the cylinder. The side top of the hollow cylinder is welded with a fan-shaped baffle with the same length as all the cylinders.

[0017] It is worth noting that the length of the liquid receiving box 3 is greater than the length of each cylinder in parallel. The two sides of the liquid receiving box 3 extend from both ends of the spray painting model groove 2. The bottom of the liquid receiving box 3 is a reinforcing steel plate, and each ejector pin 5 is fixed in the middle of the reinforcing steel plate. The reinforcing steel plate of the liquid receiving box 3 has a collection hole 12, and the collection hole 12 of the liquid receiving box 3 is sealed and directly connected to the waste liquid collection box 6 below through a hose 8.

[0018] In addition, the outer shell 1 has a double door 13 on the outer wall of the waste liquid collection box 6 placed on the lower layer, which facilitates the removal and placement of the waste liquid collection box 6.

[0019] In this specific embodiment, when it is necessary to depressurize and collect used spray paint cans, the pressure is automatically released by a cylinder. The operation steps are as follows: After using spray paint, when it is necessary to depressurize and collect used spray paint cans, multiple spray paint cans that need to be depressurized can be placed simultaneously in the spray paint model slot 2 and fixed in place. The compressed air inlet is turned on, the top cover 10 of the device housing is closed, and then the switch button 9 is turned on. The cylinder 4 is activated. The air source uses pneumatic power to avoid electrical risks. Under the action of compressed air, the cylinder 4 automatically... When the cylinder is lifted, the ejector pin 5, which corresponds to the bottom of the spray paint can slot, is slowly raised under pressure, piercing the bottom of the spray paint can and automatically releasing pressure. At the same time as the ejector pin pierces the bottom of the spray paint can and releases pressure, a small amount of residual waste liquid inside the spray paint can flows out through the pressure relief port, through the liquid receiving box 3 below the spray paint can mold slot, and through the collection hole 12 and hose 8 to the waste liquid collection box 6 on the second floor. After the waste liquid is collected, it can be disposed of in accordance with the national hazardous waste disposal standards to avoid the risk of leakage.

[0020] The specific implementation method, including the number and size of the self-spraying paint slots, the size and power method of the cylinders, and the size of the waste liquid collection tank, can be determined according to the actual situation to achieve the purpose of fast, safe, and reasonable collection and disposal of waste liquid.

[0021] This specific embodiment allows for the simultaneous depressurization of multiple spray paint cans placed within a spray paint can mold tank, and automatically collects waste paint through pipelines, avoiding the environmental pollution risk caused by splashing waste paint from the cans during depressurization by hammering or squeezing. The device is small in size, easy to transport, and widely applicable, suitable for industries such as automotive parts manufacturing or machinery manufacturing that require spray paint for surface anti-corrosion treatment of workpieces, and has broad market application prospects.

[0022] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A device for automatically depressurizing a spray paint can and collecting residual spray paint inside, characterized in that, The system includes an outer shell (1), a spray paint model tank (2), a liquid receiving box (3), a cylinder (4), a ejector pin (5), a waste liquid collection box (6), and a base (7). The outer shell (1) is divided into upper and lower layers by a middle clamp. The upper layer of the outer shell (1) contains the spray paint model tank (2), the liquid receiving box (3), and the cylinder (4). The spray paint model tank (2) is composed of multiple hollow cylinders. An open liquid receiving box (3) is provided below the spray paint model tank (2). The liquid receiving box (3) contains a... Multiple ejector pins (5) are provided, and the number and position of the ejector pins (5) correspond to the cylinders of the self-spraying model tank (2). The bottom of the liquid receiving box (3) is connected to the protruding end of the cylinder (4). The cylinder (4) is connected to an external air source. A waste liquid collection box (6) is installed in the lower layer of the outer shell (1). The waste liquid collection box (6) is connected to the liquid receiving box (3) through a hose (8). A switch button (9) for controlling the air source is installed on the outer wall of the outer shell (1). Foot (7) is installed at the four corners of the bottom of the outer shell (1).

2. The device for automatic pressure relief and collection of residual spray paint in a spray paint can according to claim 1, characterized in that, The middle plate and the bottom plate of the outer shell (1) are both made of steel bearing plates, and a crossbeam to increase the load is fixedly installed at the bottom of the steel bearing plate.

3. The device for automatic pressure relief and collection of residual spray paint in a spray paint can according to claim 1, characterized in that, The top of the outer shell (1) is equipped with a two-section top cover (10), which consists of a fixed cover that cannot be flipped vertically and a rotating flip cover. The flip cover is connected by a fixing pin.

4. The device for automatic pressure relief and collection of residual spray paint in a spray paint can according to claim 1, characterized in that, The self-spraying paint model tank (2) is welded and fixed on the support beam (11), and a fan-shaped baffle with the same length as the cylinder is welded to the top side of the self-spraying paint model tank (2).

5. The device for automatic pressure relief and collection of residual spray paint in a spray paint can according to claim 1, characterized in that, The length of the liquid receiving box (3) is greater than the length of each cylinder in parallel. The two sides of the liquid receiving box (3) extend from both ends of the paint spraying mold groove (2). The bottom of the liquid receiving box (3) is a reinforcing steel plate, and each ejector pin (5) is fixed in the middle of the reinforcing steel plate.

6. The device for automatic pressure relief and collection of residual spray paint in a spray paint can according to claim 1, characterized in that, The liquid receiving box (3) has a collection hole (12) on its reinforcing steel plate. The collection hole (12) of the liquid receiving box (3) is sealed and connected to the waste liquid collection box (6) below through a hose (8).

7. The device for automatic pressure relief and collection of residual spray paint in a spray paint can according to claim 1, characterized in that, The outer shell (1) has a double door (13) on the outer wall of the waste liquid collection box (6) placed on the lower layer.

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