Powder recycling mechanism

Abstract

The powder recycling mechanism comprises a collecting barrel and a negative pressure pipe, a negative pressure barrel is installed on the upper portion of the collecting barrel, the negative pressure barrel communicates with the collecting barrel, the negative pressure barrel is provided with a collecting opening and a negative pressure piece which communicate with the outside, and the collecting opening is used for absorbing powder; one end of the negative-pressure part penetrates through the negative-pressure barrel to be matched and conducted with the collecting barrel, and the other end is connected with an adapter; the adapter is communicated with one end of the negative pressure pipe, and the other end of the negative pressure pipe is communicated with an exhaust inlet of the fan so that negative pressure can be formed in the negative pressure barrel. The powder collecting device has the beneficial effects that negative pressure is formed in the negative pressure barrel through the draught fan, the collecting bin can block powder in air, and the powder near the collecting opening can be adsorbed into the collecting barrel to be stored under the action of the negative pressure; the lifting assembly can drive the negative pressure pipe to synchronously drive the gland to get close to or away from the collecting barrel, so that the collecting barrel is replaced more conveniently; the device has the advantages of simplicity in operation, high recovery efficiency and the like.

Description

Technical Field

[0001] This application relates to the field of powder recycling technology, and in particular to a powder recycling mechanism. Background Technology

[0002] Most products undergo a spray coating process during manufacturing to apply a layer of paint to their surface, enhancing their appearance and corrosion resistance. Current spray coating techniques primarily involve using a spray gun to directly apply powder to the product surface. However, some powder inevitably falls into the air and is wasted, as it fails to adhere to the surface. To reduce this waste, powder recovery devices are typically installed to collect the airborne powder.

[0003] Currently, powder recovery devices typically involve placing collection bins or baffles below the product to collect the powder. While this method can achieve a good recovery effect, the powder, being a small particulate matter, will freely diffuse in the air, resulting in low recovery efficiency. If the powder diffuses into the external environment, it will seriously affect the health of the operators. In addition, long-term exposure of the powder to the air will also cause it to become damp or deteriorate. Utility Model Content

[0004] One of the objectives of this application is to provide a powder recycling mechanism that can solve at least one of the defects in the aforementioned background technology.

[0005] To achieve at least one of the above objectives, the technical solution adopted in this application is as follows: a powder recovery mechanism, comprising a collection bucket and a negative pressure pipe. A negative pressure bucket is installed on the upper part of the collection bucket, and the negative pressure bucket is connected to the collection bucket. The negative pressure bucket is provided with a collection port and a negative pressure component that communicate with the outside. The collection port is used to absorb powder. One end of the negative pressure component passes through the negative pressure bucket and communicates with the collection bucket, while the other end is connected to an adapter. The adapter is connected to one end of the negative pressure pipe, and the other end of the negative pressure pipe is connected to the air intake of a fan to create negative pressure within the negative pressure bucket. This configuration creates a conductive path between the collection port and the negative pressure pipe, ensuring that the fan can create negative pressure within the negative pressure bucket, thus adsorbing the powder near the collection port into the collection bucket, thereby enabling the mechanism to achieve high powder recovery efficiency.

[0006] Preferably, the negative pressure tank has a circular cross-section, and the negative pressure component extends into the collection tank in the range of 2cm to 10cm. The collection port extends along the tangent of the negative pressure tank, and a powder collection component is installed on the collection port. This configuration allows external airflow to enter the negative pressure tank through the spiral surface, causing the airflow to move downwards in a spiral motion, accelerating the rate at which powder enters the collection tank, while also preventing powder from directly entering the adapter and becoming waste.

[0007] Preferably, the powder collection component is a collection chamber, and the opening size of the collection chamber is larger than the size of the collection port. This configuration allows the collection chamber to block airborne powder, concentrating it at the bottom of the chamber. Subsequently, under negative pressure, the powder is adsorbed into a negative pressure container, further improving the powder recovery speed.

[0008] Preferably, the adapter is curved in an arc shape, and an installation pipe for connecting to the negative pressure pipe is provided on the side of the adapter near the negative pressure pipe. This design reduces noise generated by gas flow through the curvature and also reduces the probability of powder in the collection bucket entering the negative pressure pipe, thereby improving the powder recovery rate.

[0009] Preferably, the installation pipe is provided with an installation section, a connecting section, and a waste bin from top to bottom. The connecting section is connected to the adapter. The installation section is used to install the negative pressure pipe, and the waste bin is used to collect waste. This configuration divides the installation pipe into three sections. After entering the connecting section, the powder enters the negative pressure pipe under negative pressure. When the machine stops running, the powder adhering to the inner wall of the negative pressure pipe falls and accumulates in the waste bin under gravity.

[0010] Preferably, the bottom of the waste bin is equipped with a removable cover. This design allows the cover to be opened and the waste cleaned when there is excessive powder in the waste bin.

[0011] Preferably, the bottom of the negative pressure tank is provided with a cap for sealing the collection tank. With this configuration, the collection tank is sealed with the cap, and when the collection tank needs to be replaced, the negative pressure tank and the cap can be raised together to release the seal on the collection tank.

[0012] Preferably, the powder recovery mechanism further includes a placement chamber, in which the collection bucket is installed. A lifting assembly is installed between the negative pressure pipe and the placement chamber. The lifting assembly is used to drive the negative pressure pipe to synchronously move the pressure cap closer to or away from the collection bucket. This configuration allows the lifting assembly to control the raising or lowering of the pressure cap, making the replacement of the collection bucket more convenient.

[0013] Preferably, the lifting assembly includes a cylinder and a connecting block. The cylinder is fixedly installed on the top of the placement chamber, the connecting block is fixedly connected to the negative pressure pipe, and the telescopic rod of the cylinder is fixedly connected to the connecting block. With this configuration, the telescopic rod of the cylinder can drive the connecting block to move the negative pressure pipe synchronously.

[0014] Preferably, the cylinder is equipped with a sealing element aligned with the opening of the negative pressure pipe. The sealing element works in conjunction with the cylinder to seal the negative pressure pipe. This configuration allows control over whether the fan is connected to the inside of the negative pressure pipe by sealing the negative pressure pipe with the sealing element.

[0015] Compared with the prior art, the beneficial effects of this application are as follows:

[0016] This invention uses a fan to create negative pressure inside a negative pressure tank. Powder near the collection port can be adsorbed and stored in the collection tank under the action of negative pressure. The collection chamber can block powder in the air. The collection port is arranged along the tangent of the negative pressure tank, so that the airflow makes a downward inclined spiral motion, which accelerates the speed at which the powder enters the collection tank and further improves the powder recovery rate of this mechanism.

[0017] The pressure cap can seal the collection bin. When the collection bin needs to be replaced, the lifting component can drive the negative pressure pipe to move the pressure cap closer to or away from the collection bin, making the replacement of the collection bin more convenient. The powder remaining in the negative pressure pipe can fall into the waste bin under gravity, avoiding waste from falling directly into the collection bin and causing pollution. This utility model has the advantages of simple operation and high recycling efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the powder recovery mechanism in this application.

[0019] Figure 2 This is a schematic diagram of the connection structure of the powder recovery mechanism in this application.

[0020] Figure 3 This is an enlarged structural schematic diagram of the negative pressure tank in this application.

[0021] Figure 4 This is a schematic diagram of the cross-sectional structure of the powder recovery mechanism in this application.

[0022] Figure 5 for Figure 4 A magnified structural diagram of part A in the middle.

[0023] Figure 6 This is an enlarged structural schematic diagram of the adapter in this application.

[0024] In the diagram: 1. Collection bucket; 100. Negative pressure component; 2. Negative pressure bucket; 21. Collection port; 22. Pressure cap; 200. Negative pressure pipe; 210. Collection chamber; 3. Adapter; 31. Installation section; 32. Connection section; 33. Waste bin; 300. Cylinder; 301. Connecting block; 330. Cover plate; 4. Placement chamber; 400. Sealing component. Detailed Implementation

[0025] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0026] In the description of this application, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the mechanism or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this application.

[0027] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0028] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0029] One aspect of this application provides a powder recycling mechanism, such as... Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, one preferred embodiment includes a collection tank 1 and a negative pressure pipe 200. A negative pressure tank 2 is installed on the upper part of the collection tank 1, and the negative pressure tank 2 is connected to the collection tank 1. The negative pressure tank 2 is provided with a collection port 21 that communicates with the outside and a negative pressure component 100. One end of the negative pressure component 100 passes through the negative pressure tank 2 and extends into the collection tank 1, and the other end is connected to an adapter 3. The adapter 3 is connected to one end of the negative pressure pipe 200, and the other end of the negative pressure pipe 200 is connected to the air intake of a fan (not shown in the figure) to ensure that a negative pressure can be formed in the negative pressure tank 2 by the fan. During the spraying process, the powder near the collection port 21 can enter the negative pressure tank 2 through the collection port 21 under the action of negative pressure, and is then transported to the collection tank 1 for storage.

[0030] Understandably, the blower can create negative pressure inside the negative pressure tank 2, and use suction to collect the powder in the air into the collection tank 1 for storage, preventing the powder from falling to the ground and causing resource waste and pollution, and further improving the powder recycling efficiency.

[0031] As a supplement, in order to prevent the powder in the negative pressure tank 2 from directly entering the adapter 3, the length of the negative pressure component 100 extending into the collection tank 1 is in the range of 2cm to 10cm; the preferred extension length is 5cm.

[0032] Furthermore, such as Figure 3 and Figure 5 As shown, the cross-section of the negative pressure tank 2 is circular, and the collection port 21 extends along the tangent of the negative pressure tank 2. A powder collection component is installed on the collection port 21. When the product is placed in front of the collection chamber 210 during spraying, the powder sprayed by the spray gun can directly enter the powder collection component for accumulation. Then, the powder in the powder collection component is transported to the collection tank 1 by the adsorption of the collection port 21.

[0033] It should be noted that by extending the collection port 21 along the tangent of the negative pressure tank 2, external airflow can enter the negative pressure tank 2 through the spiral surface, causing the airflow to make a downward spiral motion, thereby accelerating the speed at which the powder enters the collection tank 1.

[0034] Specifically, such as Figure 2 As shown, the powder collection assembly includes a collection bin 210, which is inclined on all four sides in a bucket shape, and the opening size of the collection bin 210 is larger than the size of the collection port 21. When the powder collides with the surface of the collection bin 210, it can slide down the inclined surface to the bottom of the collection bin 210. Then, under the suction of the negative pressure tank 2, the powder slides along one surface of the bottom of the collection bin 210 into the negative pressure tank 2, further accelerating the powder recovery speed.

[0035] It should be understood that in traditional negative pressure powder recovery mechanisms, the negative pressure pipe 200 is generally connected in parallel to the negative pressure tank 2. Although negative pressure can be formed within the negative pressure tank 2, some powder will enter the negative pressure pipe 200 with the airflow, affecting the powder recovery rate. Furthermore, the powder within the negative pressure pipe 200 may adhere to its inner wall during flow. When the type of powder changes, different types of powder will adhere to the inner wall of the negative pressure pipe 200, and the mixture of these powders will turn to ash, forming waste. If the machine stops operating, the waste adsorbed on the inner wall of the negative pressure pipe 200 will slide down into the collection tank 1 under gravity, thus reducing the purity of the recovered powder.

[0036] In view of the above situation, in some embodiments of this application, such as Figure 2 and Figure 4 As shown, the adapter 3 is bent into an arc shape, which can reduce the noise generated by gas flow through the arc and reduce the probability of powder in the collection bucket 1 entering the negative pressure pipe 200, thereby improving the powder recovery rate.

[0037] Specifically, such as Figure 6As shown, the adapter 3 is also equipped with an installation pipe for connecting the negative pressure pipe 200 on the side near the negative pressure pipe 200. The installation pipe is provided with an installation section 31, a connecting section 32 and a waste bin 33 from top to bottom. The connecting section 32 is connected to the adapter 3 to facilitate the extraction of air from the negative pressure tank 2; the installation section 31 is used to install the negative pressure pipe 200, and the waste bin 33 is used to store the waste material inside the negative pressure pipe 200. When the machine stops running, the waste material attached to the inner wall of the negative pressure pipe 200 will fall and accumulate in the waste bin 33 under the action of gravity, preventing the waste material from entering the collection bin 1 and contaminating the powder.

[0038] Furthermore, such as Figure 6 As shown, a removable cover plate 330 is installed at the bottom of the waste bin 33. Operators can periodically open the cover plate 330 to clean the powder inside, so as to prevent the powder from accumulating too much in the waste bin 33 and causing some waste to enter the collection bucket 1.

[0039] It is understandable that the powder type needs to be changed frequently in the spraying process; therefore, the collection bucket 1 also needs to be replaced each time the powder is changed. In the prior art, replacing the collection bucket 1 is relatively cumbersome and time-consuming. However, in this application, as... Figure 2 and Figure 3 As shown, the bottom of the negative pressure tank 2 is provided with a pressure cap 22 for sealing the collection tank 1. When the collection tank 1 needs to be replaced, the negative pressure tank 2 and the pressure cap 22 can be raised together to release the seal on the collection tank 1.

[0040] Furthermore, such as Figure 1 As shown, the powder recycling mechanism also includes a placement chamber 4, in which multiple collection bins 1 can be installed to improve the powder recycling speed; a lifting component is installed between the placement chamber 4 and the negative pressure pipe 200, which is used to drive the negative pressure pipe 200 to synchronously move the pressure cap 22 closer to or away from the collection bin 1, making the operation of replacing the collection bin 1 more convenient.

[0041] Specifically, such as Figure 1 As shown, the lifting assembly includes a cylinder 300 and a connecting block 301. The cylinder 300 is fixedly installed on the top of the placement chamber 4, and the connecting block 301 is fixedly installed on the side wall of the negative pressure pipe 200. By fixing the telescopic rod of the cylinder 300 to the connecting block 301, the connecting block 301 can be driven by the telescopic rod of the cylinder 300 to drive the negative pressure pipe 200 to move synchronously, thereby causing the pressure cover 22 to rise or fall.

[0042] Furthermore, such as Figure 1As shown, a sealing element 400 is installed on the cylinder 300, which is aligned with the opening of the negative pressure pipe 200. The sealing element 400 can cooperate with the cylinder 300 to seal the negative pressure pipe 200. When the negative pressure pipe 200 rises to a specific position, the sealing element 400 seals the negative pressure pipe 200 and cuts off the airflow in the negative pressure pipe 200. At this time, the collection bucket 1 can be replaced. When the negative pressure pipe 200 descends, the sealing element 400 releases the seal on the negative pressure pipe 200 and allows the gas in the negative pressure pipe 200 to flow again.

[0043] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. A powder recycling mechanism, comprising a collection bucket (1) and a negative pressure pipe (200), characterized in that, A negative pressure tank (2) is installed on the upper part of the collection tank (1). The negative pressure tank (2) is connected to the collection tank (1). The negative pressure tank (2) is provided with a collection port (21) and a negative pressure component (100) that are connected to the outside. The collection port (21) is used to absorb powder. One end of the negative pressure component (100) passes through the negative pressure tank (2) and is connected to the collection tank (1). The other end is connected to an adapter (3). The adapter (3) is connected to one end of the negative pressure pipe (200). The other end of the negative pressure pipe (200) is connected to the air intake of the fan to form negative pressure in the negative pressure tank (2).

2. The powder recycling mechanism as described in claim 1, characterized in that, The cross-section of the negative pressure tank (2) is circular, and the length of the negative pressure component (100) extending into the collection tank (1) is 2 cm to 10 cm. The collection port (21) extends along the tangent direction of the negative pressure tank (2), and a powder collection component is installed on the collection port (21).

3. The powder recycling mechanism as described in claim 2, characterized in that, The powder collection component is a collection bin (210), and the opening size of the collection bin (210) is larger than the size of the collection port (21).

4. The powder recycling mechanism as described in claim 1, characterized in that, The adapter (3) is curved in an arc shape, and an installation tube for connecting the negative pressure pipe (200) is provided on the side of the adapter (3) near the negative pressure pipe (200).

5. The powder recycling mechanism as described in claim 4, characterized in that, The installation pipe is provided with an installation section (31), a connecting section (32) and a waste bin (33) from top to bottom. The connecting section (32) is connected to the adapter (3). The installation section (31) is used to install the negative pressure pipe (200). The waste bin (33) is used to collect waste.

6. The powder recycling mechanism as described in claim 5, characterized in that, The bottom of the waste bin (33) is provided with a removable cover plate (330).

7. The powder recycling mechanism as described in claim 1, characterized in that, The bottom of the negative pressure tank (2) is provided with a pressure cap (22) for sealing the collection tank (1).

8. The powder recycling mechanism as described in claim 7, characterized in that, The powder recycling mechanism also includes a placement chamber (4), the collection bucket (1) is installed in the placement chamber (4), and a lifting component is installed between the negative pressure pipe (200) and the placement chamber (4). The lifting component is used to drive the negative pressure pipe (200) to synchronously move the pressure cap (22) closer to or away from the collection bucket (1).

9. The powder recycling mechanism as described in claim 8, characterized in that, The lifting assembly includes a cylinder (300) and a connecting block (301). The cylinder (300) is fixedly installed on the top of the placement chamber (4). The connecting block (301) is fixedly connected to the negative pressure pipe (200). The telescopic rod of the cylinder (300) is fixedly connected to the connecting block (301).

10. The powder recycling mechanism as described in claim 9, characterized in that, The cylinder (300) is equipped with a sealing element (400) that is aligned with the opening of the negative pressure pipe (200). The sealing element (400) is used to cooperate with the cylinder (300) to seal the negative pressure pipe (200).

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