Vacuum loading machine

Abstract

The utility model discloses a kind of vacuum feeding machines of powder material conveying equipment technical field, to solve the waste problem of existing technology in vacuum feeding machine to black tea powder transport. It includes transfer tank, the inlet pipe and vacuum pipe are respectively communicated and set on the transfer tank, the discharge outlet of the inlet pipe and the air inlet of vacuum pipe are all set on transfer tank, the height of the discharge outlet of the inlet pipe is lower than the position of the air inlet of vacuum pipe, the inside of the transfer tank is provided with support and filter layer laid on support, the filter layer can completely shield the air inlet of vacuum pipe, cleaning device is also provided on the transfer tank, and the cleaning device is used to clean the surface of filter layer;The utility model is used for vacuum feeding machine to black tea powder is transported, can effectively isolate black tea powder into rear-end vacuum pipeline, can avoid the influence of negative pressure system being blocked while avoiding waste black tea powder material.

Description

Technical Field

[0001] This utility model relates to a vacuum feeder, belonging to the technical field of powder material conveying equipment. Background Technology

[0002] When preparing black tea powder using industrial equipment, the tea leaves typically undergo crushing, sieving, and mixing processes. When transporting the crushed black tea powder to different equipment, a vacuum feeder is usually used. This vacuum feeder utilizes negative pressure to adsorb powdery or granular materials from the raw materials, allowing heavier particles to fall through a transfer chamber while air is expelled normally. However, in practical applications of this structure for transporting black tea powder, the powder tends to float in the air and be expelled with it, leading to some degree of raw material waste. Furthermore, prolonged passage of the black tea powder through the rear vacuum tube can easily cause blockages, making cleaning difficult and affecting the vacuuming effect. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a vacuum feeder for transporting black tea powder. It can effectively prevent black tea powder from entering the rear vacuum pipe, thus avoiding waste of black tea powder while preventing the negative pressure system from being blocked.

[0004] To achieve the above objectives, this utility model employs the following technical solution: This utility model provides a vacuum feeder, including a transfer tank. A feed pipe and a vacuum pipe are respectively connected to the transfer tank. The outlet of the feed pipe and the air inlet of the vacuum pipe are both located on the transfer tank. The height of the outlet of the feed pipe is lower than the air inlet of the vacuum pipe. The transfer tank is equipped with a support and a filter layer laid on the support. The filter layer can completely cover the air inlet of the vacuum pipe. The transfer tank is also equipped with a cleaning device for cleaning the surface of the filter layer.

[0005] Specifically, the support structure is cylindrical or inverted frustum, the surface of the support has multiple perforations, and the filter layer is covered and disposed on the outer surface of the support.

[0006] Specifically, the support is rotatably disposed inside the transfer tank, and the transfer tank is provided with a drive assembly for driving the support to rotate.

[0007] Specifically, the drive assembly includes a positioning frame fixedly mounted on the transfer tank, a first motor mounted on the positioning frame, a pulley fixedly mounted on the output shaft end of the first motor, a connecting pipe for rotating and sealing with the vacuum tube mounted on the bracket, a groove provided on the surface of the connecting pipe, and a belt for transmission cooperation between the pulley and the groove of the connecting pipe.

[0008] Specifically, the cleaning device includes a high-pressure jet nozzle and a high-pressure air pipe connected to the high-pressure jet nozzle, wherein the jet nozzle is positioned to spray towards the outer surface of the filter layer.

[0009] Specifically, the cleaning device is configured as a brush cleaning assembly, which includes a positioning tube integrally formed with the transfer tank. A drive shaft is rotatably mounted inside the positioning tube. A brush capable of contacting the surface of the filter layer is mounted on the drive shaft. A second motor is mounted on the positioning tube, which drives the brush to rotate.

[0010] Specifically, the filter layer is polypropylene high-efficiency filter paper.

[0011] Compared with the prior art, the beneficial effects achieved by this utility model are as follows: This invention incorporates a support frame and filter layer inside the transfer tank. The support frame supports the filter layer, preventing tea powder from entering the vacuum pipes at the adsorption position. This achieves tea powder retention, saving materials and reducing the maintenance frequency of the vacuum pipes. Furthermore, the equipment includes a cleaning device inside the transfer tank to clean the filter layer. This prevents fine tea powder particles from being adsorbed and clogging the filter layer surface, thus affecting its adsorption performance. It also prevents insufficient vacuum environment due to excessive vacuum resistance, ensuring proper feeding of tea powder. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of the vacuum feeder provided in this embodiment of the utility model; Figure 2 This is a side view of the vacuum feeder provided in this embodiment of the utility model; Figure 3 This is a utility model Figure 2 A sectional view of the vacuum feeder provided in the embodiment along the AA direction; Figure 4 This is a top view of the vacuum feeder provided in this embodiment of the utility model; Figure 5 This is a utility model Figure 4 A cross-sectional view of the vacuum feeder in the BB direction provided in the embodiment; Reference numerals in the attached drawings: 1. Transfer tank; 2. Feed pipe; 3. Vacuum tube; 4. Support; 5. Filter layer; 6. Brush cleaning assembly; 601. Positioning tube; 602. Brush; 603. Second motor; 7. Connecting pipe; 8. Drive assembly; 801. First motor; 802. Positioning frame; 803. Pulley; 804. Belt. Detailed Implementation

[0013] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.

[0014] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0015] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example:

[0016] This utility model provides a vacuum feeder for vacuum transport of black tea powder. It effectively prevents the black tea powder from entering the rear vacuum pipe, avoiding waste and blockage of the negative pressure system. To achieve the machine's structural function, the device includes a transfer tank 1, providing storage space for the material. The transfer tank 1 is connected to an inlet pipe 2 and a vacuum pipe 3, used to extract the black tea powder and provide a negative pressure environment, ensuring the inlet pipe 2 can supply material normally into the transfer tank 1. To allow the material entering the transfer tank 1 to settle smoothly into the lower hopper by gravity, the outlet of the inlet pipe 2 and the inlet of the vacuum pipe 3 are both located on the transfer tank 1. The outlet of the inlet pipe 2 is positioned lower than the inlet of the vacuum pipe 3 to prevent the black tea powder from being sucked into the device and flowing directly into the vacuum pipe 3. To prevent black tea powder from entering the vacuum tube 3 and thus blocking the air inlet end of the vacuum tube 3, a support 4 and a filter layer 5 are installed inside the transfer tank 1. The filter layer 5 completely covers the air inlet of the vacuum tube 3. In this way, the filter layer 5 can prevent black tea powder dust from entering the vacuum tube 3, ensuring that the material can settle and be collected downwards in the chamber of the transfer tank 1. In order to prevent dust from accumulating on the surface of the filter layer 5 for a long time and affecting the vacuuming effect, a cleaning device is also provided on the transfer tank 1. The cleaning device is used to clean the surface of the filter layer 5. The specific cleaning method is not unique, as long as the surface of the filter layer 5 is cleaned. By cleaning the surface of the filter layer, it is possible to prevent black tea powder from accumulating and adhering on the surface of the filter layer 5, and to extend the corresponding maintenance cycle. The filter layer 5 can be made of polypropylene high-efficiency filter paper, which is convenient for regular manual replacement.

[0017] This utility model provides a vacuum feeder. In order to increase the filtration area of ​​the filter layer 5, the support 4 can be set in a cylindrical or inverted frustum shape. The support 4 can be composed of multiple metal plates or perforated mesh plates. Multiple perforated holes are opened on the surface of the support 4 to provide a passage for gas flow. The filter layer 5 is set to cover the outer surface of the support 4, so that the support 4 supports the filter layer 5, which can effectively extend the filtration area, improve the gas passage effect and extend the maintenance time.

[0018] This utility model provides a vacuum feeder. Considering that the filter layer 5 structure composed of a rotating body requires cleaning of the entire annular surface of the filter layer 5 during actual cleaning, in addition to setting multiple cleaning points inside the transfer tank 1, it is also possible to rotatably position the support 4 inside the transfer tank 1. The rotation of the support 4 drives the filter layer 5 to rotate, so that at least one cleaning point is needed to completely clean the filter layer 5. Therefore, a drive assembly 8 for driving the support 4 to rotate is required on the transfer tank 1. The specific driving method is not unique. As a preferred embodiment, the drive assembly 8 includes a positioning frame 802 fixedly mounted on the transfer tank 1, such as... Figure 5 As shown, a first motor 801 is mounted on the positioning frame 802. A pulley 803 is fixedly mounted on the output shaft end of the first motor 801. A connecting pipe 7 for rotating and sealing with the vacuum tube 3 is mounted on the bracket 4. The connecting pipe 7 can maintain communication between its inner cavity and the vacuum tube 3 during rotation. A groove is provided on the surface of the connecting pipe 7. At this time, a belt 804 is provided for transmission between the pulley 803 and the groove of the connecting pipe 7. Through the above structural design, when the first motor 801 is working, it can drive the belt 804 to rotate, causing the connecting pipe 7 and the corresponding bracket 4 to rotate. Then, by using the fixed-point cleaning of the cleaning device, the complete cleaning of the circumferential surface of the filter layer 5 can be achieved. It should be noted that the brackets 4 need to maintain a better seal than the transfer tank 1 to ensure that the dust-laden gas does not escape from the non-filter layer 5 position to the outside. The specific sealing and fitting method is not unique and will not be further explained here.

[0019] The present invention provides a vacuum feeder. Considering that in order to facilitate the cleaning of filter paper or filter layer 5 and reduce damage to the surface of filter layer 5 during cleaning, the cleaning device can include a high-pressure air nozzle and a high-pressure air pipe (not shown in the figure) connected to the high-pressure air nozzle. The air nozzle can be directed to the outer surface of filter layer 5. Cleaning by air jet helps to reduce damage to the surface of filter layer.

[0020] In this embodiment of the present invention, a vacuum feeder can be further improved by incorporating a brush cleaning assembly 6 into the cleaning device. Figure 5As shown, the brush cleaning assembly 6 includes a positioning tube 601 integrally formed with the transfer tank 1. A drive shaft is rotatably mounted inside the positioning tube 601. A brush 602 capable of contacting the surface of the filter layer 5 is mounted on the drive shaft. A second motor 603 is mounted on the positioning tube 601 to drive the brush 602 to rotate. Through this structural design, the second motor 603 can drive the brush 602 to perform contact cleaning of the filter layer 5 surface. The cleaning method can be changed by rotating the two drive components in the same or opposite directions, thus optimizing the cleaning effect. Figure 5 As shown, when the brush 602 is tilted, the length of the brush 602 should match the position of the filter layer 5. The structure of the brush 602 is also a regular rotating body.

[0021] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A vacuum loader, characterized in that, The transfer tank (1) includes a feed pipe (2) and a vacuum tube (3) connected to it. The outlet of the feed pipe (2) and the inlet of the vacuum tube (3) are both located on the transfer tank (1). The height of the outlet of the feed pipe (2) is lower than the position of the inlet of the vacuum tube (3). The transfer tank (1) is equipped with a support (4) and a filter layer (5) laid on the support (4). The filter layer (5) can completely cover the inlet of the vacuum tube (3). The transfer tank (1) is also equipped with a cleaning device for cleaning the surface of the filter layer (5).

2. A vacuum loading machine according to claim 1, wherein The support (4) has a cylindrical or inverted frustum structure. The surface of the support (4) has multiple perforated holes. The filter layer (5) is covered and disposed on the outer surface of the support (4).

3. A vacuum loading machine according to claim 2, wherein, The bracket (4) is rotatably disposed inside the transfer tank (1), and the transfer tank (1) is provided with a drive assembly (8) for driving the bracket (4) to rotate.

4. A vacuum feeder according to claim 3, characterized in that, The drive assembly (8) includes a positioning frame (802) fixedly mounted on the transfer tank (1), a first motor (801) mounted on the positioning frame (802), a pulley (803) fixedly mounted on the output shaft end of the first motor (801), a connecting pipe (7) for rotating and sealing with the vacuum tube (3) mounted on the bracket (4), a groove provided on the surface of the connecting pipe (7), and a belt (804) for transmission cooperation between the pulley (803) and the groove of the connecting pipe (7).

5. A vacuum loading machine according to any one of claims 1-4, characterized in that The cleaning device includes a high-pressure jet nozzle and a high-pressure air pipe connected to the high-pressure jet nozzle, wherein the jet nozzle is positioned to spray towards the outer surface of the filter layer (5).

6. A vacuum loading machine according to any one of claims 1-4, characterized in that The cleaning device is configured as a brush cleaning assembly (6), which includes a positioning tube (601) integrally formed with the transfer tank (1). The positioning tube (601) is rotatably fitted with a drive shaft. A brush (602) capable of contacting the surface of the filter layer (5) is mounted on the drive shaft. A second motor (603) is mounted on the positioning tube (601) and is used to drive the brush (602) to rotate.

7. The vacuum loading machine of claim 1, wherein, The filter layer (5) is a polypropylene high-efficiency filter paper.

Images