A hardware surface coating equipment that is easy to spray

Abstract

This utility model discloses a surface coating equipment for hardware parts that is easy to spray, belonging to the field of hardware surface coating technology. It aims to solve the problem that in the existing technology, the surface temperature of hardware parts after drying is usually maintained at 40-60℃, which creates a slight hot airflow field, making it easier to attract dust particles from the air. This necessitates manual wiping and cleaning of the pre-treated hardware parts before spraying, increasing labor costs and potentially leading to incomplete cleaning due to the randomness of manual operation, further affecting the stability of the spraying quality. The equipment includes a base, with brackets welded to the upper left and right ends. A human-machine interface controller is installed on the upper end of the brackets, a push handle is installed at the rear of the upper end of the brackets, and rollers are installed at the rear of the lower end of the brackets. A coating mechanism is set on top of the base, and the coating mechanism includes a powder storage tank installed on the upper side of the base, with a powder conveying pipe at the outer end of the powder storage tank.

Description

Technical Field

[0001] This utility model belongs to the field of hardware surface coating technology, specifically relating to a hardware surface coating equipment that is easy to spray. Background Technology

[0002] In the field of hardware product processing, powder coating has become one of the core processes for surface modification of hardware parts due to its advantages such as strong coating adhesion, excellent corrosion resistance, and good environmental performance. The quality of powder coating is highly dependent on the cleanliness of the substrate surface. If there are impurities such as dust, oil, and oxide scale on the substrate surface, it will directly lead to defects such as pitting, pinholes, and reduced adhesion in the powder coating. In severe cases, it may even cause the coating to peel off, significantly reducing the service life and appearance quality of the hardware parts.

[0003] To address this issue, existing technologies typically include a pretreatment process before powder coating. This involves degreasing, pickling, phosphating, washing, and drying to thoroughly clean the surface of the metal parts, ensuring they meet the surface cleanliness standards required for powder coating. However, in actual production, the pretreated metal parts must be transported from the cleaning and drying station to the powder coating booth via conveyor systems (such as overhead chains or roller conveyors). This transport inevitably involves contact with the workshop air, which commonly contains suspended particles composed of metal shavings, dust, and fibrous impurities. These particles adhere to the surface of the metal parts during transport due to electrostatic adsorption and airflow settling. Especially for metal parts that have undergone drying, the surface temperature is typically maintained at 40-60°C, creating a slight hot airflow field that further attracts airborne dust particles. This necessitates manual wiping and cleaning of the pretreated parts before coating, increasing labor costs and potentially leading to incomplete cleaning due to the randomness of manual operation, further affecting the stability of the coating quality. Utility Model Content

[0004] (1) Technical problems to be solved To address the shortcomings of existing technologies, the purpose of this utility model is to provide a convenient surface coating equipment for hardware parts. This aims to solve the problem that in existing technologies, the surface temperature of hardware parts after drying is typically maintained at 40-60℃, creating a slight hot airflow field that more easily attracts dust particles from the air. This necessitates manual wiping and cleaning of the pre-treated hardware parts before spraying, increasing labor costs and potentially leading to incomplete cleaning due to the randomness of manual operation, further affecting the stability of the spraying quality.

[0005] (2) Technical solution To solve the above-mentioned technical problems, this utility model provides a hardware surface coating equipment that is easy to spray, including a base, brackets welded to the upper left and right ends of the base, a human-machine interface controller installed on the upper end of the brackets, a push handle installed at the rear of the upper end of the brackets, and rollers installed at the rear of the lower end of the brackets. A coating mechanism is provided on the upper part of the base, and the coating mechanism includes a powder storage tank installed on the upper side of the base. A powder conveying pipe is provided at the outer end of the powder storage tank. An electrostatic spray gun is installed at the end of the powder conveying pipe away from the powder storage tank. A placement frame is fixedly connected to the upper front side of the bracket on the right end of the base. A fan is installed at the rear right side of the upper side of the base. An air pipe is fixedly connected to the output end of the fan. An air outlet is fixedly connected to the lower side of the electrostatic spray gun. A protective mesh cover is connected to the upper side of the base. Heating units are provided at the inner and outer ends of the air outlet.

[0006] Furthermore, the heating unit includes a battery installed on the lower side of the air outlet, heating wires are installed at equal intervals on the inner side of the air outlet, and a partition is connected to the inner side of the air outlet.

[0007] Furthermore, a pneumatic conveying pump is installed inside the powder storage tank, and the end of the powder conveying pipe away from the electrostatic spray gun is fixedly connected to the output end of the pneumatic conveying pump inside the powder storage tank.

[0008] Furthermore, the electrostatic spray gun is placed on a shelf, and the handle portion of the electrostatic spray gun passes through the interior of the shelf.

[0009] Furthermore, the lower front end of the air outlet is fixedly connected to the end of the air pipe away from the fan, and the rear end of the air outlet is inclined downward.

[0010] Furthermore, the protective mesh cover is fixed to the upper side of the base at the outer end of the fan, and a round hole is opened at the lower right end of the protective mesh cover. The outer side of the air pipe near the fan end is fixedly connected to the inner side of the round hole.

[0011] Furthermore, the partitions are fixedly connected to the upper and lower ends of the air outlet duct at equal and staggered intervals, the heating wires are respectively installed inside the air outlet duct at positions between each partition, and the battery is connected to the heating wires via conductive wires.

[0012] (3) Beneficial effects Compared with the prior art, the beneficial effects of this utility model are as follows: This invention, by setting up a coating mechanism, allows airflow to enter the air outlet through the air pipe when the electrostatic spray gun is applied to the surface of the hardware from top to bottom. Then, the airflow is sprayed out at an angle from the rear end of the air outlet. As the electrostatic spray gun moves and coats, the airflow from the air outlet first contacts the hardware to be coated and blows off the dust adhering to its surface. Thus, without having to wipe the surface of the hardware again, the dust adhering to the surface can be avoided from affecting the coating effect.

[0013] This invention incorporates a heating unit. When the airflow from the exhaust duct blows air onto the metal parts, the battery powers the heating wire, causing it to heat up. This heats the airflow entering the exhaust duct as it passes through the heating wire, creating a hot airflow that is then blown onto the surface of the metal parts. This preheats the metal parts to be coated, causing the powder to slightly melt and adhere more firmly to the surface when it is subsequently sprayed onto the metal parts, thus ensuring the coating effect of the coating equipment. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a schematic diagram of the structure of the placement rack of this utility model; Figure 3 This is a schematic diagram of the coating mechanism of this utility model; Figure 4 This is a schematic diagram of the heating unit of this utility model.

[0016] The labels in the attached diagram are as follows: 1. Base; 2. Support; 3. Human-machine interface controller; 4. Push handle; 5. Roller; 601. Powder storage bucket; 602. Powder conveying pipe; 603. Electrostatic spray gun; 604. Placement rack; 605. Fan; 606. Air pipe; 607. Air outlet; 608. Protective mesh cover; 701. Battery; 702. Heating wire; 703. Partition. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] This specific embodiment is a hardware surface coating device that is easy to spray, and its structural schematic diagram is as follows. Figures 1 to 3 As shown, the system includes a base 1, with brackets 2 welded to the upper left and right ends of the base 1. A human-machine interface controller 3 is mounted on the upper end of the brackets 2, a push handle 4 is mounted at the rear of the upper end of the brackets 2, and rollers 5 are mounted at the rear of the lower end of the brackets 2. A coating mechanism is provided on the upper part of the base 1, and the coating mechanism includes a powder storage tank 601 mounted on the upper side of the base 1. A powder conveying pipe 602 is provided on the outer end of the powder storage tank 601, and an electrostatic spray gun 603 is mounted on the end of the powder conveying pipe 602 away from the powder storage tank 601. A pneumatic conveying pump is installed inside the powder storage tank 601, and the end of the powder conveying pipe 602 away from the electrostatic spray gun 603 is fixedly connected to the output end of the pneumatic conveying pump inside the powder storage tank 601. A placement rack 604 is fixedly connected to the upper front side of the bracket 2 on the right end of the base 1. The electrostatic spray gun 603 is placed on the placement rack 604, and the handle of the electrostatic spray gun 603 passes through the interior of the placement rack 604. A fan 605 is installed on the upper right rear side of the base 1. An air pipe 606 is fixedly connected to the output end of the fan 605. An air outlet 607 is fixedly connected to the lower side of the electrostatic spray gun 603. The lower front end of the air outlet 607 is fixedly connected to the end of the air pipe 606 furthest from the fan 605. The rear end of the air outlet 607 is tilted downwards. Therefore, when the electrostatic spray gun 603 is applying coating to the surface of the metal part from top to bottom, turning on the fan 605 allows airflow to pass through the air pipe 606 and enter the air outlet 607. The airflow then sprays out tilted downwards from the rear end of the air outlet 607. During the coating process, the airflow from the air outlet 607 first contacts the metal part to be coated, blowing off any dust adhering to its surface. This prevents dust from affecting the coating effect without needing to re-wipe the surface of the metal part.

[0019] The base 1 has a protective mesh cover 608 attached to its upper side. The protective mesh cover 608 is fixed to the upper side of the base 1 at the outer end of the fan 605. A circular hole is provided at the lower right end of the protective mesh cover 608. The outer side of the air pipe 606 near the fan 605 is fixedly connected to the inner side of the circular hole. This allows the protective mesh cover 608 to be positioned at the outer end of the fan 605 for protection, preventing excess coating powder in the air from entering the fan 605 and causing harm.

[0020] Cooperate Figure 4 As shown, heating units are provided at both the inner and outer ends of the air outlet duct 607. Each heating unit includes a battery 701 installed on the lower side of the air outlet duct 607. Heating wires 702 are installed at equal intervals on the inner side of the air outlet duct 607, and partitions 703 are connected to the inner side of the air outlet duct 607. The partitions 703 are fixedly connected to the upper and lower ends of the inner side of the air outlet duct 607 at equal intervals and in a staggered manner. The heating wires 702 are respectively installed inside the air outlet duct 607 at positions between the partitions 703. The battery 701 is connected to the heating wires 702 via conductive wires. When the battery 701 is turned on to power the heating wire 702 and cause it to heat up, the airflow entering the air outlet 607 will be heated as it passes through the heating wire 702, forming a hot airflow that is blown out. Furthermore, the staggered baffles 703 will cause the air entering the air outlet 607 to remain in the air outlet 607 for a longer period of time, thereby allowing the airflow to contact the heating wire 702 for a longer period of time, ensuring that the airflow can be heated to a sufficient temperature.

[0021] Working principle: When spraying metal parts, turn on the coating equipment, hold the electrostatic spray gun 603 and apply powder coating to the surface of the metal parts from top to bottom, and at the same time turn on the fan 605 so that the airflow enters the air outlet 607 through the air pipe 606. Then, it will spray downward from the rear end of the air outlet 607 to contact the metal parts to be coated, blowing off the dust attached to the surface first, so that the powder sprayed from the electrostatic spray gun 603 can adhere to the surface of the metal parts without being blocked by dust.

[0022] All technical features in this embodiment can be freely combined according to actual needs.

[0023] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended 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 make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A surface coating device for hardware parts that is easy to spray, comprising a base (1), characterized in that, The base (1) has brackets (2) welded to the upper left and right ends. A human-machine interface controller (3) is installed on the upper end of the bracket (2). A push handle (4) is installed at the rear of the upper end of the bracket (2). A roller (5) is installed at the rear of the lower end of the bracket (2). A coating mechanism is provided on the upper part of the base (1). The coating mechanism includes a powder storage tank (601) installed on the upper side of the base (1). A powder conveying pipe (602) is provided at the outer end of the powder storage tank (601). The powder conveying pipe (602) is far away from the powder storage tank. An electrostatic spray gun (603) is installed at one end of the barrel (601). A placement rack (604) is fixedly connected to the upper front side of the bracket (2) at the right end of the base (1). A fan (605) is installed on the right rear side of the upper side of the base (1). An air pipe (606) is fixedly connected to the output end of the fan (605). An air outlet (607) is fixedly connected to the lower side of the electrostatic spray gun (603). A protective mesh cover (608) is connected to the upper side of the base (1). Heating units are provided at both the inner and outer ends of the air outlet (607).

2. The surface coating equipment for hardware parts that is easy to spray, as described in claim 1, is characterized in that, The heating unit includes a battery (701) installed on the lower side of the air outlet (607), heating wires (702) are installed at equal intervals on the inner side of the air outlet (607), and a partition (703) is connected to the inner side of the air outlet (607).

3. The surface coating equipment for hardware parts that is easy to spray, as described in claim 1, is characterized in that, The powder storage tank (601) is equipped with a pneumatic conveying pump, and the end of the powder conveying pipe (602) away from the electrostatic spray gun (603) is fixedly connected to the output end of the pneumatic conveying pump inside the powder storage tank (601).

4. The surface coating equipment for hardware parts that is easy to spray, as described in claim 1, is characterized in that, The electrostatic spray gun (603) is placed on the rack (604), and the handle of the electrostatic spray gun (603) passes through the interior of the rack (604).

5. The surface coating equipment for hardware parts that is easy to spray, as described in claim 1, is characterized in that, The lower front end of the air outlet (607) is fixedly connected to the end of the air pipe (606) away from the fan (605), and the rear end of the air outlet (607) is inclined downward.

6. The surface coating equipment for hardware parts that is easy to spray, as described in claim 1, is characterized in that, The protective mesh cover (608) is fixed to the upper side of the base (1) at the outer end of the fan (605). A round hole is opened at the lower right end of the protective mesh cover (608). The outer side of the air pipe (606) near the fan (605) is fixedly connected to the inner side of the round hole.

7. The surface coating equipment for hardware parts that is easy to spray, as described in claim 2, is characterized in that, The partitions (703) are fixedly connected to the upper and lower ends of the air outlet (607) at equal and staggered intervals. The heating wires (702) are respectively installed inside the air outlet (607) between the partitions (703). The battery (701) is connected to the heating wires (702) through conductive wires.

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