Powder supply machine for powder spraying

Abstract

The utility model belongs to the technical field of powder supply machines, and particularly relates to a powder supply machine for powder spraying, comprising: a housing provided with a carrier gas inlet and a carrier gas outlet and having an internal carrier gas pressure higher than the environment; a container in which a powder raw material is contained; the conveying mechanism is arranged in the shell, extends out of the shell, is used for conveying powder raw materials, comprises a powder collecting unit for absorbing powder, and further comprises a powder conveying pipe connected with the powder collecting unit and used for guiding the powder raw materials; the processing device is arranged on the shell, is connected with the powder conveying pipe and is used for removing powder adhered to a drooping area in the pipe; the powder conveying pipe penetrates through the outlet and extends out of the shell. The powder conveying pipe has the beneficial effects that the processing device is installed on the shell, powder adhering to the drooping area in the powder conveying pipe can be removed through vibration, and therefore the smoothness of the powder conveying pipe is kept.

Description

Technical Field

[0001] This application belongs to the field of powder supply machine technology, and particularly relates to a powder supply machine for powder coating. Background Technology

[0002] Powder coating powder feeders are used to transport powder materials from one location to another. They achieve material transport through mechanical or pneumatic forces, extracting or pushing powder materials from storage bins or hoppers to the target location. They are widely used in the production processes of industries such as chemical, pharmaceutical, and building materials.

[0003] US Patent Publication No. US20240416371A1 discloses a powder supply unit with a powder collection unit. The powder collection unit includes a surface covering and a powder collection loading section. The powder collection loading section allows carrier gas to enter the powder collection loading chamber via a first channel, and powder particles fall freely into the chamber via a second channel. Once inside the chamber, the powder particles are loaded onto the carrier gas, thereby reducing and ideally avoiding contact between the powder particles and the inner surface of the chamber. The carrier gas loaded with powder particles can exit the chamber via a third channel fluidly connected to a tubular delivery element. An apparatus for performing laser welding or thermal spraying processes includes a powder feeding unit.

[0004] The aforementioned patent relies on a tubular conveyor for powder transport. To better guide and adjust the powder, the tubular conveyor is usually made of a flexible hose. However, due to the characteristics of the hose, a sagging area will form during use. This area can easily cause the transported powder to accumulate and stick together, which can reduce the conveying efficiency or even cause blockage and affect the use. Therefore, improvements are needed. Summary of the Invention

[0005] The purpose of this application is to provide a powder feeder for powder coating that can solve the above-mentioned problems.

[0006] The purpose of this application is to provide a powder supply machine for powder coating, comprising:

[0007] The casing is equipped with a carrier gas inlet and outlet, and the internal carrier gas pressure is higher than that of the environment.

[0008] Container containing powdered raw materials;

[0009] A conveying mechanism, disposed within and extending outside the housing, is used to convey powdered raw materials, including a powder collection unit for absorbing the powder, and further comprising:

[0010] A powder conveying pipe, connected to a powder collection unit and used to guide powder raw materials;

[0011] A processing device, mounted on the housing and connected to the powder conveying pipe, is used to remove powder adhering to the sagging area inside the pipe.

[0012] The powder conveying pipe extends through the outlet to the outside of the housing. Pressurized carrier gas enters the housing through the inlet, loads the powder material in the container into the powder collection unit, and then enters the powder conveying pipe through the powder collection unit, finally being conveyed to the powder spraying device connected to the powder conveying pipe. The powder collection unit is movably mounted on the housing and can change its height according to the amount of powder material.

[0013] Furthermore, the processing apparatus includes:

[0014] The vibrator is spirally wound around the powder conveying pipe;

[0015] A power source, used to provide energy to the vibrator in the form of alternating current;

[0016] The vibrator is a conductive wire, and the power source is an AC power supply. The AC power flowing through the conductive wire causes the spirally wound conductive wire, forming a coil, to be affected by electromagnetic force, thereby generating uniform mechanical vibration. The processing device also includes a junction box and electrical wires. The conductive wire is coiled and is made of magnetic material, preferably a permanent magnet material. The alternating magnetic field generated by the current flowing through the conductive wire interacts with the magnetic field, thereby causing the magnetic material to vibrate mechanically.

[0017] Furthermore, the processing device also includes an insulating sleeve wrapped around the vibrator. An installation space is formed between the insulating sleeve and the powder sleeve, and the conductive wire is installed within this space. The insulating sleeve is a flexible tube that can be adjusted to accommodate changes in the powder conveying pipe.

[0018] Furthermore, an electromagnetic isolation tube is provided between the vibrator and the powder conveying pipe. The electromagnetic isolation tube may also be coated with a coating that has the corresponding effect.

[0019] Furthermore, the powder conveying pipe includes an inner pipe body located inside the housing and an outer pipe body located outside the housing, with the processing device connected to the outer pipe body. A sealing seat is also installed at the opening to fix the powder conveying pipe and allow the powder conveying pipe to pass through.

[0020] Furthermore, the bottom of the container is also equipped with a weighing device connected to the container to determine the weight of the powder inside. The weighing device includes a weighing sensor and a control unit. The operating device can weigh the container in real time and transmit the weighing signal to the control unit. After receiving the weighing signal, the control unit compares it with a preset weight to determine whether there is enough powder in the container and can provide relevant information on whether the powder is sufficient to the staff.

[0021] The beneficial effects of this application are:

[0022] 1. By installing a processing device on the housing, the powder adhering to the sagging area inside the powder conveying pipe can be removed by vibration, thereby maintaining the smooth flow of the powder conveying pipe;

[0023] 2. By installing a processing device connected to the powder conveying pipe, the powder adhering to the sagging area inside the pipe can be effectively removed, avoiding the situation where powder accumulates and sticks due to the sagging area of ​​the hose, thereby reducing the risk of decreased conveying efficiency and blockage affecting use;

[0024] 3. By solving the problem of powder accumulation in the drooping area, the powder can be transported more smoothly through the powder conveying pipe, ensuring the efficiency of powder conveying. This ensures that the powder feeder can stably and efficiently provide powder raw materials for powder coating operations, and also extends the service life of the equipment, reducing equipment maintenance costs and downtime. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of this utility model;

[0026] Figure 2 This is a schematic diagram of the connection between the powder conveying pipe and the processing device of this utility model.

[0027] The reference numerals in the figure are as follows: 100, shell; 110, inlet; 120, outlet; 130, sealing seat; 200, container; 300, powder collection unit; 400, powder conveying pipe; 410, inner pipe; 420, outer pipe; 500, processing device; 510, vibrator; 520, power source; 521, junction box; 522, electrical wire; 530, installation space; 540, insulating sleeve; 550, electromagnetic isolation tube; 600, weighing device; 610, weight sensor; 620, control unit. Detailed Implementation

[0028] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0029] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0030] The powder supply machine for powder coating provided in this application will be described in detail below with reference to the accompanying drawings, through specific embodiments and application scenarios.

[0031] Example 1:

[0032] like Figure 1 and Figure 2 As shown in the figure, this application provides a powder feeder for powder coating, including:

[0033] The housing 100 is provided with a carrier gas inlet 110 and an outlet 120, and the internal carrier gas pressure is higher than that of the environment.

[0034] Container 200 contains powdered raw materials;

[0035] A conveying mechanism, disposed within and extending outside the housing 100, is used to convey powdered raw materials. It includes a powder collection unit 300 for absorbing the powder, and further comprises:

[0036] The powder conveying pipe 400 is connected to the powder collecting unit 300 and is used to guide the powder raw material;

[0037] The processing device 500 is disposed on the housing 100 and connected to the powder conveying pipe 400, and is used to remove powder adhering to the sagging area inside the pipe;

[0038] The powder conveying pipe 400 extends through the outlet 120 to the outside of the housing 100.

[0039] In some embodiments of this application, such as Figure 1As shown, in the powder coating feeder described above, pressurized carrier gas enters the housing 100 through inlet 110. A flow controller is also installed at the inlet, controlling the flow rate via a control unit 620. The powder material in the pressurized carrier gas loading container 200 enters the powder collection unit 300, and then through the powder collection unit 300 into the powder conveying pipe 400, ultimately being conveyed to the powder coating device connected to the powder conveying pipe 400. The powder collection unit 300 is movably mounted on the housing 100, allowing its height to change according to the amount of powder material. This application installs a processing device 500 on the housing 100, which can use vibration to remove powder adhering to the drooping area within the powder conveying pipe 400, thereby maintaining the smooth flow of the powder conveying pipe 400.

[0040] By installing a processing device 500 connected to the powder conveying pipe 400, powder adhering to the sagging area inside the pipe can be effectively removed, preventing powder from accumulating and sticking due to the sagging area of ​​the hose. This reduces the risk of decreased conveying efficiency and blockage affecting operation. Furthermore, by solving the problem of powder accumulation in the sagging area, powder can be conveyed more smoothly through the powder conveying pipe 400, ensuring efficient powder delivery. This guarantees that the powder feeder can stably and efficiently provide powder raw materials for powder coating operations, extends the equipment's service life, and reduces maintenance costs and downtime.

[0041] A sealing seat 130 is also installed at the opening to fix the powder conveying pipe 400 and allow it to pass through. This seals and separates the powder conveying pipe 400, preventing displacement due to vibration or other external forces. Simultaneously, it divides the powder conveying pipe 400 into an inner pipe body 410 and an outer pipe body 420. The inner pipe body 410 has no sagging area and does not require vibration removal by the processing device 500. The outer pipe body 420, however, requires vibration from the processing device 500. This concentrated energy and action more effectively removes powder adhering to the sagging area of ​​the outer pipe body 420, avoiding unnecessary vibration treatment of the inner pipe body 410 and improving the efficiency and targeting of the processing device 500.

[0042] Example 2:

[0043] This application provides a powder feeder for powder coating. In addition to the above-mentioned technical features, the powder feeder for powder coating in this application also includes the following technical features.

[0044] like Figure 1 and Figure 2 As shown, the processing device 500 includes:

[0045] Vibrator 510 is spirally wound around powder conveying pipe 400;

[0046] Power source 520 is used to provide energy to vibrator 510 in the form of alternating current;

[0047] Among them, the vibrator 510 is a conductive wire, and the power source 520 is an AC power source. The AC power flowing through the conductive wire causes the conductive wire, which is spirally wound to form a coil, to be affected by electromagnetic force, thereby generating uniform mechanical vibration.

[0048] In this embodiment, the processing device 500 further includes a junction box 521 and an electrical wire 522, through which alternating current is input. The vibrator 510 is a conductive wire spirally wound around the powder conveying pipe 400, forming a coil. The power source 520, i.e., an AC power supply, provides energy to the conductive wire in the form of alternating current. The conductive wire is made of magnetic material, preferably a permanent magnet material. The alternating magnetic field generated by the current flowing through the conductive wire interacts with the magnetic field, causing mechanical vibration of the magnetic material. This mechanical vibration is transmitted to the powder conveying pipe 400, causing the entire powder conveying pipe 400 to vibrate. The vibration of the powder conveying pipe 400 effectively removes powder adhering to the sagging area inside the pipe.

[0049] Vibration reduces the adhesion between the powder and the pipe wall, making it easier for the powder to detach from the pipe wall and thus preventing powder accumulation and adhesion in the sagging area. At the same time, by removing adhering powder, the unobstructed flow of the powder conveying pipe 400 is effectively ensured, improving the powder conveying efficiency.

[0050] Example 3:

[0051] This application provides a powder feeder for powder coating. In addition to the above-mentioned technical features, the powder feeder for powder coating in this application also includes the following technical features.

[0052] like Figure 1 and Figure 2 As shown, the processing device 500 also includes an insulating sleeve 540 wrapped around the vibrator 510.

[0053] An installation space 530 is formed between the insulating sleeve 540 and the powder sleeve. The conductive wire is installed within the installation space 530. The insulating sleeve 540 is a flexible tube that can adapt to changes in the powder conveying pipe 400. Since the powder conveying pipe 400 may deform due to various factors during actual use, the flexibility of the insulating sleeve 540 can adapt well to these changes. At the same time, the insulating sleeve 540 not only protects the conductive wire but also acts as an isolation layer, preventing interference from conductive substances in the surrounding environment and ensuring safety.

[0054] Furthermore, an electromagnetic isolation pipe 550 is provided between the vibrator 510 and the powder conveying pipe 400.

[0055] Since the powder being transported may contain conductive or magnetic materials, this application installs an electromagnetic isolation tube 550 outside the powder transport tube 400 to prevent electromagnetic interaction with the powder material being transported in the powder hose. In addition, the electromagnetic isolation tube 550 can also be coated with a coating that has the corresponding effect.

[0056] Example 4:

[0057] This application provides a powder feeder for powder coating. In addition to the above-mentioned technical features, the powder feeder for powder coating in this application also includes the following technical features.

[0058] like Figure 1 and Figure 2 As shown, a weighing device 600 is also provided at the bottom of the container 200, which is connected to the container 200 and determines the weight of the powder inside the container 200.

[0059] In this embodiment, the weighing device 600 includes a weighing sensor 610 and a control unit 620. The operating device can weigh the container 200 in real time and transmit the weighing signal to the control unit 620. The control unit 620 has a preset minimum weight. After receiving the weighing signal, the control unit 620 compares it with the preset weight to determine whether there is enough powder in the container 200 and can provide relevant information about powder sufficiency to the operator. During spraying, the operator can use this information to determine whether there is enough powder in the container 200 and whether the powder needs to be replenished. Furthermore, the weighing sensor 610 can be a hydraulic weighing sensor 610, a piezoelectric weighing sensor 610, or a capacitive weighing sensor 610.

[0060] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0061] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A powder feeder for powder spraying, comprising: a housing (100) provided with a carrier gas inlet (110) and an outlet (120), the internal carrier gas pressure being higher than the ambient; a container (200) containing a powder raw material; a conveying mechanism arranged in the housing (100) and extending out of the housing (100) for conveying the powder raw material, comprising a powder collecting unit (300) for absorbing the powder, characterized in that it further comprises: a powder conveying pipe (400) connected with the powder collecting unit (300) and used for guiding the powder raw material; a treatment device (500) arranged on the housing (100) and connected with the powder conveying pipe (400) for removing the powder adhered to the sag zone of the pipe; wherein the powder conveying pipe (400) extends out of the housing (100) through the outlet (120).

2. The powder feeder for powder spraying according to claim 1, characterized in that: The treatment device (500) comprises: a vibrator (510) spirally wound on the powder conveying pipe (400); a power source (520) for providing power to the vibrator (510) in the form of alternating current; wherein the vibrator (510) is a conductive wire, and the power source (520) is an alternating current power source, the alternating current flowing through the conductive wire can make the conductive wire spirally wound and formed into a coil affected by electromagnetic force, thereby generating uniform mechanical vibration.

3. A powder feeder for powder spraying according to claim 2, characterized in that: The treatment device (500) further comprises an insulating sleeve (540) wrapped outside the vibrator (510).

4. The powder feeder according to claim 2, wherein: An electromagnetic isolation pipe (550) is arranged between the vibrator (510) and the powder conveying pipe (400).

5. The powder feeder according to claim 1, wherein: The powder conveying pipe (400) comprises an inner pipe body (410) located in the housing (100) and an outer pipe body (420) located outside the housing (100), and the treatment device (500) is connected with the outer pipe body (420).

6. The powder feeder according to claim 1, wherein: The bottom of the container (200) is further provided with a weighing device (600) connected with the container (200) and determining the weight of the powder in the container (200).

Images