Negative pressure powder conveying system

Abstract

The invention discloses a negative pressure powder conveying system which comprises a metering tank, a three-way pipe is arranged on the lower side of the metering tank, a first valve is arranged on one side of the three-way pipe, a conveying pipe is arranged on one side of the first valve, a conveying hose is fixedly connected to one end of the conveying pipe, a conveying hard pipe is fixedly connected to one end of the conveying hose, and an inflation mechanism is arranged at the other end of the three-way pipe. And the inflating mechanism is matched with the conveying hose and the conveying hard pipe. According to the negative pressure powder conveying system, through the arranged conveying hose and the conveying hard pipe, powder can be conveniently conveyed to different positions through the extension convenience of the conveying hose, negative pressure is formed in the conveying hard pipe, negative pressure material suction is achieved, then the powder can be conveyed to the use position, and the use effect is good. And therefore, the convenience of the powder conveying system in use is improved, and meanwhile, the conveying cost of the powder is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of powder material conveying, and in particular to a negative pressure powder material conveying system. Background Art

[0002] Powder refers to the material obtained by mixing and dispersing powdered raw resin and various additives. In industry, the main raw materials for plastic molding include powder, granules, solutions and dispersions, among which powder and granules are more widely used. The preparation process of powder is relatively simple, mainly mixing powdered raw resin and various additives evenly. This mixed powder is also called dry mix; Powders have many industrial applications, such as being used as raw materials in plastic molding, and being further plasticized into granular materials through plasticizing operations. In addition, powders can also be used in other industrial fields, such as building materials, chemicals, etc. Existing powders are generally stored in powder tanks, and are mostly transported by screws. However, when the powder needs to be transported to a distant location, a long screw conveyor needs to be set up, which is inconvenient and greatly increases the transportation cost. Therefore, it is urgent to design a negative pressure powder conveying system to solve the above problems. Summary of the invention

[0003] The purpose of the present invention is to provide a negative pressure powder delivery system to solve the above-mentioned deficiencies in the prior art.

[0004] In order to achieve the above object, the present invention provides the following technical solutions: A negative pressure powder delivery system comprises a metering tank, a three-way pipe is arranged at the lower side of the metering tank, a first valve is arranged at one side of the three-way pipe, a delivery pipe is arranged at one side of the first valve, a delivery hose is fixedly connected to one end of the delivery pipe, a delivery hard pipe is fixedly connected to one end of the delivery hose, an inflation mechanism is arranged at the other end of the three-way pipe, the inflation mechanism cooperates with the delivery hose and the delivery hard pipe, the inflation mechanism comprises an air pump, an air delivery pipe and a second valve, the air pump is arranged at the lower side of the metering tank, and the second valve is arranged at At the lower end of the tee pipe, both ends of the gas pipe are fixedly connected to one end of the second valve and the output end of the air pump respectively, a filter is arranged in the gas pipe, a plug-in slot is opened on one side of the gas pipe, a sealing plug-in block is installed in the plug-in slot, the filter is fixedly connected to the sealing plug-in block, a plurality of mounting ears are arranged on the periphery of the metering tank, a supporting leg is arranged on the lower side of the mounting ear, a mounting plate is fixedly installed on the upper side of the supporting leg, a weight sensor is fixedly installed on the upper side of the mounting plate, and the mounting ear is arranged on the upper side of the weight sensor.

[0005] A placement rack is arranged on one side of the metering tank, and the delivery hose is wound around the placement rack.

[0006] A limit block is fixedly installed on one side of the sealing plug, and a fixed block is fixedly installed on one side of the air pipe. The fixed block is located on the upper side of the limit block, a fixing bolt is inserted between the fixing block and the limit block, and the fixing bolt is threadedly connected to the limit block.

[0007] In the above technical solution, the negative pressure powder conveying system provided by the present invention has the following beneficial effects: (1) The negative pressure powder conveying system provided by the present invention can conveniently convey powder to different locations by providing a conveying hose and a conveying hard pipe. Negative pressure is formed in the conveying hard pipe to achieve negative pressure suction, and the powder can be conveyed to the use location, thereby improving the convenience of the powder conveying system when in use and reducing the cost of conveying the powder.

[0008] (2) The negative pressure powder conveying system provided by the present invention can replenish gas in the metering tank when conveying powder through the provided inflation mechanism, thereby avoiding the situation where the powder cannot be sucked when the negative pressure suction occurs, thereby improving the stability and practicality of the powder conveying system when in use.

[0009] (3) The negative pressure powder delivery system provided by the present invention can filter the gas delivered by the air pump through the filter screen, thereby preventing impurities from being delivered to the metering tank, thereby improving the practicality of the powder delivery system when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0011] Figure 1 The present invention provides a schematic diagram of the overall structure of a negative pressure powder conveying system embodiment.

[0012] Figure 2 A schematic diagram of the structure of a metering tank and a weight sensor provided in an embodiment of a negative pressure powder conveying system of the present invention.

[0013] Figure 3 A schematic diagram of the air delivery pipe structure provided in an embodiment of a negative pressure powder delivery system of the present invention.

[0014] 1. Support legs; 2. Measuring tank; 3. Mounting ears; 5. Air pump; 6. Second valve; 7. Air pipe; 8. Tee pipe; 9. First valve; 10. Delivery pipe; 11. Delivery hose; 12. Placement rack; 13. Delivery pipe; 14. Weight sensor; 15. Mounting plate; 16. Plug-in slot; 17. Filter; 18. Sealing plug; 19. Limit block; 20. Fixing block; 21. Fixing bolt; 22. Inflating mechanism. DETAILED DESCRIPTION

[0015] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0016] like Figure 1-3 As shown, a negative pressure powder conveying system provided by an embodiment of the present invention includes a metering tank 2, a three-way pipe 8 is arranged on the lower side of the metering tank 2, a first valve 9 is arranged on one side of the three-way pipe 8, a delivery pipe 10 is arranged on one side of the first valve 9, one end of the delivery pipe 10 is fixedly connected to a delivery hose 11, one end of the delivery hose 11 is fixedly connected to a delivery hard pipe 13, and an inflation mechanism 22 is arranged at the other end of the three-way pipe 8. The inflation mechanism 22 cooperates with the delivery hose 11 and the delivery hard pipe 13. The inflation mechanism 22 includes an air pump 5, an air delivery pipe 7 and a second valve 6. The air pump 5 is arranged on the lower side of the metering tank 2, the second valve 6 is arranged at the lower end of the three-way pipe 8, and both ends of the air delivery pipe 7 are fixedly connected to one end of the second valve 6 and the output end of the air pump 5 respectively. A placement rack 12 is arranged on one side of the metering tank 2, and the delivery hose 11 is wrapped around the placement rack 12.

[0017] Specifically, in the present embodiment, when conveying powder, by opening the first valve 9 and forming a negative pressure in the conveying rigid tube 13, the conveying rigid tube 13 can extract the powder in the metering tank 2 through the conveying hose 11 and the three-way tube 8, so that the powder is sucked into the three-way tube 8 and the conveying hose 11, and is conveyed along the pipeline, and then enters the conveying rigid tube 13 for discharge, so that the powder is conveyed to the use position, and when the negative pressure suction is performed, the conveying hose 11 of different lengths can be set according to different needs through the convenience of extending the conveying hose 11, so that the conveying rigid tube 13 can be extended to different positions, which improves the convenience when conveying the powder to a remote position and reduces the cost of conveying the powder. The conveying hose 11 can be wound and stored by the placement rack 12, and by starting the air pump 5 and opening the second valve 6, the air pump 5 can convey external air to the metering tank 2 through the air pipe 7 and the three-way tube 8, so that the metering tank 2 can be supplemented with gas, avoiding the situation where the powder cannot be extracted during the negative pressure suction.

[0018] The present invention provides a negative pressure powder conveying system, wherein a filter screen 17 is arranged in an air delivery pipe 7, a plug-in slot 16 is opened on one side of the air delivery pipe 7, a sealing plug-in block 18 is plugged and installed in the plug-in slot 16, the filter screen 17 is fixedly connected to the sealing plug-in block 18, a limit block 19 is fixedly installed on one side of the sealing plug-in block 18, a fixing block 20 is fixedly installed on one side of the air delivery pipe 7, the fixing block 20 is located on the upper side of the limit block 19, a fixing bolt 21 is plugged between the fixing block 20 and the limit block 19, and the fixing bolt 21 is threadedly connected to the limit block 19.

[0019] In another embodiment provided by the present invention, when gas is transported to the metering tank 2 through the gas pipe 7, the filter 17 can filter the gas transported by the air pump 7 to prevent impurities from being transported into the metering tank 2. When the filter 17 needs to be cleaned, the fixing bolt 21 is unscrewed, and then the limit block 19 is pulled, so that the limit block 19 drives the sealing block 18 to move out of the plug-in slot 16. The movement of the sealing block 18 out of the plug-in slot 16 can drive the filter 17 to be separated from the gas pipe 7 through the plug-in slot 16, thereby facilitating the staff to clean the filter 17. During installation, the filter 17 can be installed in the gas pipe 7 by reversing the above steps, wherein a plurality of sealing rings are arranged between the sealing block 18 and the plug-in slot 16 to improve the sealing performance of the gas pipe 7 during use.

[0020] The present invention provides a negative pressure powder conveying system, wherein a plurality of mounting ears 3 are arranged on the periphery of a metering tank 2, a supporting leg 1 is arranged at the lower side of the mounting ear 3, a mounting plate 15 is fixedly installed at the upper side of the supporting leg 1, a weight sensor 14 is fixedly installed at the upper side of the mounting plate 15, and the mounting ears 3 are arranged at the upper side of the weight sensor 14.

[0021] In another embodiment provided by the present invention, the weight sensor 14 is used to control the specific weight of the powder transported outward, thereby achieving accurate control of the material transportation. The weight sensor 14 can perform real-time detection on the metering tank 2. When the powder is transported, the weight of the metering tank 2 is detected in real time, and the changes in the weight of the metering tank 2 are recorded to confirm the metering of the powder transportation.

[0022] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A negative pressure powder delivery system, characterized in that: The invention comprises a metering tank (2), wherein a three-way pipe (8) is arranged at the lower side of the metering tank (2), a first valve (9) is arranged at one side of the three-way pipe (8), a delivery pipe (10) is arranged at one side of the first valve (9), one end of the delivery pipe (10) is fixedly connected to a delivery hose (11), one end of the delivery hose (11) is fixedly connected to a delivery hard pipe (13), and an inflation mechanism (22) is arranged at the other end of the three-way pipe (8), the inflation mechanism (22) cooperates with the delivery hose (11) and the delivery hard pipe (13), and the inflation mechanism (22) comprises an air pump (5), an air delivery pipe (7) and a second valve (6), the air pump (5) is arranged at the lower side of the metering tank (2), and the second valve (6) is arranged at the three-way pipe ( 8) lower end, the two ends of the gas delivery pipe (7) are respectively fixedly connected to one end of the second valve (6) and the output end of the air pump (5), a filter screen (17) is arranged in the gas delivery pipe (7), a plug-in slot (16) is opened on one side of the gas delivery pipe (7), a sealing plug-in block (18) is inserted and installed in the plug-in slot (16), the filter screen (17) is fixedly connected to the sealing plug-in block (18), a plurality of mounting ears (3) are arranged on the peripheral side of the metering tank (2), a support leg (1) is arranged on the lower side of the mounting ear (3), a mounting plate (15) is fixedly installed on the upper side of the support leg (1), a weight sensor (14) is fixedly installed on the upper side of the mounting plate (15), and the mounting ear (3) is arranged on the upper side of the weight sensor (14).

2. A negative pressure powder conveying system according to claim 1, characterized in that: A placement rack (12) is provided on one side of the metering tank (2), and the delivery hose (11) is wound around the side of the placement rack (12).

3. A negative pressure powder delivery system according to claim 1, characterized in that: A limit block (19) is fixedly mounted on one side of the sealing plug block (18), and a fixing block (20) is fixedly mounted on one side of the gas delivery pipe (7); the fixing block (20) is located on the upper side of the limit block (19), a fixing bolt (21) is inserted between the fixing block (20) and the limit block (19), and the fixing bolt (21) is threadedly connected to the limit block (19).

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