Powder feeding device

Abstract

The utility model relates to a kind of powder feeding device, including sealing assembly, sleeve and telescopic component, sealing assembly includes support, elastic member and sealing seat, support is slidably arranged in the cover plate of material cylinder, one end of elastic member abuts cover plate, the other end abuts support;Sealing seat is installed in support, and sealing seat selectively seals the feed inlet of cover plate with the lifting of support;Sleeve is installed in support, and telescopic component includes telescopic power element, pressing plate, telescopic cover and butt joint cylinder, telescopic power element is installed in sleeve, and telescopic power element drives pressing plate to lift, and pressing plate drives support to slide, one end of telescopic cover is communicated with one end of sleeve, the other end is communicated with butt joint cylinder, butt joint cylinder is installed in pressing plate, and one end of butt joint cylinder abuts cover plate.The feeding device is driven by pressing plate to press support, so that sealing seat opens feed inlet, realizes feeding;After completing feeding, pressing plate is away from support, under the action of elastic member, sealing seat seals the feed inlet of cover plate, prevent powder leakage, convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of powder feeding technology, and in particular to a powder feeding device. Background Technology

[0002] In powder handling, powder transfer is a common process. Currently, to prevent powder leakage during cylinder movement, a cover plate is typically placed on the cylinder. During feeding, the cylinder moves to the feeding device, where a suction cup removes the cover plate before feeding can proceed. However, this suction cup method can lead to air leakage, causing the cover plate to fail to be removed successfully or fall off during removal, making it inconvenient to use. Utility Model Content

[0003] Therefore, it is necessary to provide a powder feeding device to address the above problems.

[0004] A powder feeding device includes a sealing assembly, a sleeve, and a telescopic assembly. The sealing assembly includes a support, an elastic element, and a sealing seat. The support is slidably mounted on a cover plate of a material cylinder. One end of the elastic element abuts against the cover plate, and the other end abuts against the support. The sealing seat is installed on the support and selectively seals the feed inlet of the cover plate as the support rises and falls. The sleeve is installed on a support. The telescopic assembly includes a telescopic power element, a pressure plate, a telescopic cover, and a connecting cylinder. The telescopic power element is installed on the sleeve and drives the pressure plate to rise and fall. The pressure plate drives the support to slide. One end of the telescopic cover is connected to one end of the sleeve, and the other end is connected to the connecting cylinder. The connecting cylinder is installed on the pressure plate, and one end of the connecting cylinder abuts against the cover plate.

[0005] In one embodiment, the sealing assembly further includes a sealing gasket, which is mounted on the cover plate and is positioned corresponding to the feed inlet of the cover plate. The sealing gasket is used to abut against the outer side of the sealing seat. The sealing gasket has a through hole communicating with the feed inlet, and the diameter of the through hole is smaller than the diameter of the feed inlet.

[0006] In one embodiment, the telescopic assembly further includes a retaining plate mounted on the end of the docking cylinder away from the telescopic cover, the retaining plate being used to abut against the top of the sealing gasket.

[0007] In one embodiment, the sealing gasket is a rubber gasket, and the end of the docking cylinder away from the telescopic cover is used to bend the inner side of the sealing gasket; the aperture of the docking cylinder is smaller than the aperture of the feed inlet, and the aperture of the docking cylinder is larger than the aperture of the through hole.

[0008] In one embodiment, the support includes a base plate and a plurality of support columns. The sealing seat is installed on the base plate. One end of each support column is installed on the base plate, and the other end passes through the cover plate. Each support column is arranged along the periphery of the base plate. There are a plurality of elastic elements, and each elastic element corresponds to one support column. Each elastic element is sleeved on the support column, with one end of the elastic element abutting against the cover plate and the other end abutting against one end of the support column.

[0009] In one embodiment, the telescopic assembly further includes a surrounding plate, a pad, a column, and a spring. The surrounding plate is sleeved on the outside of the docking cylinder. There are multiple pads, columns, and springs, and they correspond one-to-one. The pads are installed on the pressure plate, and each pad is arranged along the periphery of the pressure plate. The column passes through the pad and the surrounding plate. The spring is sleeved on the column, with one end of the spring abutting against the surrounding plate and the other end abutting against one end of the column.

[0010] In one embodiment, the telescopic assembly further includes a buffer mounted on the sleeve, one end of the buffer being used to abut against the pressure plate.

[0011] In one embodiment, the sleeve includes a cylindrical body and a support portion mounted on the outside of the cylindrical body, and the telescopic power element is mounted on the support portion; there are multiple support portions and multiple telescopic power elements, and each support portion is arranged along the periphery of the cylindrical body.

[0012] In one embodiment, a dust removal assembly is further included, the dust removal assembly including a plurality of nozzles mounted on the docking cylinder, each nozzle being disposed along the periphery of the docking cylinder, the nozzles being used to blow air toward the outside of the sealing seat.

[0013] In one embodiment, the dust removal assembly further includes an air pipe, one end of which is connected to the sleeve and the other end of which is connected to a dust extraction system.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: The powder feeding device of this utility model presses down the support by the pressure plate, so that the sealing seat is away from the cover plate and the feed port is opened until one end of the connecting cylinder abuts the cover plate. At this time, the connecting cylinder connects to the feed port of the cover plate, realizing feeding and preventing powder leakage. After feeding is completed, the pressure plate moves away from the support, and under the action of the elastic element, the sealing seat seals the feed port of the cover plate to prevent powder leakage. It is convenient to use. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the assembly structure of a powder feeding device according to an embodiment of the present invention; Figure 2 for Figure 1 The diagram shows a cross-sectional view of the powder feeding device. Figure 3 for Figure 1 Enlarged view of center circle A; Figure 4 for Figure 2 A magnified view of circle B in the center.

[0016] The meanings of the numbers in the attached diagram are as follows: 100. Powder feeding device; 10. Sealing assembly; 11. Support; 111. Base plate; 112. Support column; 12. Elastic element; 13. Sealing seat; 14. Sealing gasket; 140. Through hole; 20. Sleeve; 21. Cylinder body; 22. Bracket; 23. Support leg; 30. Telescopic assembly; 31. Telescopic power element; 32. Pressure plate; 33. Telescopic cover; 34. Connecting cylinder; 35. Fixed plate; 36. Enclosure plate; 37. Pad plate; 38. Column; 39. Buffer; 40. Dust removal assembly; 41. Nozzle; 42. Air pipe; 90. Material cylinder; 91. Outer shell; 92. Cover plate; 920. Inlet; 93. Through pipe. Detailed Implementation

[0017] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0018] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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.

[0019] Furthermore, the terms "first" and "second" 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, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0020] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0021] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0022] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0023] Please refer to Figures 1 to 4A powder feeding device 100 according to one embodiment of the utility model includes a sealing assembly 10, a sleeve 20, and a telescopic assembly 30. The sealing assembly 10 includes a support 11, an elastic element 12, and a sealing seat 13. The support 11 is slidably mounted on the cover plate 92 of the material cylinder 90. One end of the elastic element 12 abuts against the cover plate 92, and the other end abuts against the support 11. The sealing seat 13 is installed on the support 11, and the sealing seat 13 selectively seals the feed inlet 920 of the cover plate 92 as the support 11 rises and falls. The sleeve 20... The telescopic assembly 30, mounted on a support, includes a telescopic power element 31, a pressure plate 32, a telescopic cover 33, and a docking cylinder 34. The telescopic power element 31 is mounted on the sleeve 20 and drives the pressure plate 32 to rise and fall. The pressure plate 32 drives the support 11 to slide. One end of the telescopic cover 33 is connected to one end of the sleeve 20, and the other end is connected to the docking cylinder 34. The docking cylinder 34 is mounted on the pressure plate 32, and one end of the docking cylinder 34 is used to abut against the cover plate 92. In one embodiment, the material cylinder 90 includes a shell 91, a cover plate 92, a through pipe 93, and a breath filter (not shown). The cover plate 92 covers the shell 91 and has an inlet 920. One end of the through pipe 93 is connected to the top of the shell 91, and the other end is connected to the breath filter. Furthermore, the breath filter can filter exhaled gas to prevent powder from flowing out with the gas. The breath filter is prior art. In this embodiment, the powder feeding device 100 presses down the support 11 by the pressure plate 32, causing the sealing seat 13 to move away from the cover plate 92 and opening the feed inlet 920 until one end of the docking cylinder 34 abuts against the cover plate 92. At this time, the docking cylinder 34 connects to the feed inlet 920 of the cover plate 92, realizing feeding and preventing powder leakage. After feeding is completed, the pressure plate 32 moves away from the support 11, and under the action of the elastic element 12, the sealing seat 13 seals the feed inlet 920 of the cover plate 92 to prevent powder leakage, making it convenient to use.

[0024] like Figure 1 and Figure 2As shown, in this embodiment, the sealing assembly 10 includes a support 11, an elastic element 12, and a sealing seat 13. The support 11 is slidably mounted on the cover plate 92 of the material cylinder 90. One end of the elastic element 12 abuts against the cover plate 92, and the other end abuts against the support 11. The sealing seat 13 is installed on the support 11, and the sealing seat 13 selectively seals the feed inlet 920 of the cover plate 92 as the support 11 rises and falls. Optionally, the support 11 includes a base plate portion 111 and a plurality of support columns 11. 2. The sealing seat 13 is installed on the base plate 111, and one end of the support column 112 is installed on the base plate 111, while the other end passes through the cover plate 92. Each support column 112 is arranged along the periphery of the base plate 111. There are multiple elastic elements 12, each corresponding to one of the support columns 112. Each elastic element 12 is sleeved on the support column 112, with one end abutting against the cover plate 92 and the other end abutting against one end of the support column 112. Further, the elastic element 12 is a spring; the sealing seat 13 is conical.

[0025] like Figure 1 and Figure 4 As shown, the sealing assembly 10 further includes a sealing gasket 14, which is installed on the cover plate 92. The sealing gasket 14 is positioned corresponding to the feed inlet 920 and is used to abut against the outer side of the sealing seat 13 to ensure airtightness. The sealing gasket 14 has a through hole 140 communicating with the feed inlet 920, and the diameter of the through hole 140 is smaller than the diameter of the feed inlet 920. Optionally, the sealing gasket 14 is a rubber gasket to avoid wear on the sealing seat 13.

[0026] like Figure 1 As shown, the sleeve 20 is mounted on a support; the sleeve 20 includes a cylindrical body 21 and a bracket 22 mounted on the outside of the cylindrical body 21, one end of the cylindrical body 21 being connected to a feeding mechanism; optionally, there are multiple brackets 22, each of which is arranged along the periphery of the cylindrical body 21; furthermore, the sleeve 20 also includes multiple support legs 23 mounted on the outside of the cylindrical body 21, the support legs 23 being used to connect to the support.

[0027] like Figures 1 to 3 As shown, the telescopic assembly 30 includes a telescopic power element 31, a pressure plate 32, a telescopic cover 33, and a docking cylinder 34. The telescopic power element 31 is installed on the sleeve 20 and is used to drive the pressure plate 32 to rise and fall. The pressure plate 32 is used to drive the support 11 to slide. Optionally, the telescopic power element 31 is installed on the bracket portion 22. There are multiple bracket portions 22 and multiple telescopic power elements 31. Further, the pressure plate 32 is annular.

[0028] In one embodiment, one end of the telescopic cover 33 is connected to one end of the sleeve 20, and the other end is connected to the docking cylinder 34. Optionally, the telescopic cover 33 is an accordion cover. The docking cylinder 34 is installed on the pressure plate 32, and one end of the docking cylinder 34 is used to abut against the cover plate 92 to prevent powder leakage during feeding. Optionally, the end of the docking cylinder 34 away from the telescopic cover 33 is used to bend the inner side of the sealing gasket 14. The aperture of the docking cylinder 34 is smaller than the aperture of the feed inlet 920, and the aperture of the docking cylinder 34 is larger than the aperture of the through hole 140.

[0029] like Figure 2 As shown, the telescopic assembly 30 also includes a fixing plate 35, which is installed at the end of the docking cylinder 34 away from the telescopic cover 33. The fixing plate 35 is used to abut against the top of the sealing gasket 14. When feeding, one end of the docking cylinder 34 bends the inner periphery of the sealing gasket 14 until the fixing plate 35 abuts against the top of the sealing gasket 14 to ensure airtightness.

[0030] like Figure 1 and Figure 3 As shown, the telescopic assembly 30 also includes a surrounding plate 36, a pad 37, a column 38, and a spring (not shown in the figure). The surrounding plate 36 is sleeved on the outside of the docking cylinder 34. There are multiple pads 37, columns 38, and springs, and they correspond one-to-one. The pads 37 are installed on the pressure plate 32, and each pad 37 is arranged along the periphery of the pressure plate 32. The column 38 passes through the pad 37 and the surrounding plate 36. The spring is sleeved on the column 38, with one end of the spring abutting against the surrounding plate 36 and the other end abutting against one end of the column 38. When the fixed plate 35 abuts against the sealing gasket 14, the spring plays a buffering role. Moreover, it can fine-tune the situation where the docking cylinder 34 and the sealing gasket 14 are not parallel, thereby improving airtightness and docking accuracy.

[0031] In one embodiment, the telescopic assembly 30 further includes a buffer 39 installed on the sleeve 20. One end of the buffer 39 is used to abut against the pressure plate 32 to prevent impact. Optionally, the buffer 39 is installed on one side of the bracket portion 22. There are multiple buffers 39, each corresponding to a telescopic power element 31. Further, the buffer 39 is a hydraulic buffer. The telescopic assembly 30 also includes multiple guide posts (not shown in the figure). One end of the guide post is installed on the pressure plate 32, and the other end passes through the sleeve 20. Optionally, the end of the guide post away from the pressure plate 32 passes through the bracket portion 22. Further, there are two guide posts and two telescopic power elements 31, and the guide posts and telescopic power elements 31 are arranged alternately.

[0032] like Figures 1 to 3As shown, the powder feeding device 100 also includes a dust removal component 40. The dust removal component 40 includes multiple nozzles 41 installed on the docking cylinder 34. Each nozzle 41 is arranged along the periphery of the docking cylinder 34. One end of each nozzle 41 is connected to the docking cylinder 34, and the other end is connected to an air pump. The nozzles 41 are used to blow air towards the outside of the sealing seat 13 to blow the residual powder on the sealing seat 13 into the material cylinder 90. The dust removal component 40 also includes an air pipe 42. One end of the air pipe 42 is connected to the sleeve 20, and the other end is connected to a dust extraction system. After feeding is completed, the telescopic power element 31 retracts, and the residual powder in the sleeve 20, telescopic cover 33, and docking cylinder 34 is extracted through the air pipe 42 to prevent powder from overflowing.

[0033] In use, the material cylinder 90 moves to the feeding station, and the telescopic power element 31 drives the pressure plate 32 and the docking cylinder 34 to descend synchronously. The pressure plate 32 presses down on the support column 112 and compresses the elastic element 12, thereby moving the sealing seat 13 away from the sealing gasket 14. As the docking cylinder 34 descends further, the end of the docking cylinder 34 away from the telescopic cover 33 bends the inner periphery of the sealing gasket 14 until the fixed plate 35 abuts against the top of the sealing gasket 14, thereby sealing the docking cylinder 34 and the cover plate 92. At this time, the docking cylinder 34 connects the through hole 140 and the material cylinder 90. Then, the feeding mechanism feeds the material into the sleeve 20. The powder passes through the sleeve 20, the telescopic cover 33, the docking cylinder 34, the through hole 140 and the feed port 920 in sequence and enters the material cylinder 90 until the weighing system feedback that the preset weight has been reached and the feeding stops. Moreover, during the feeding process, the gas in the material cylinder 90 is discharged through the breather filter. After feeding is completed, nozzle 41 blows air towards the side wall of sealing seat 13, blowing the residual powder on the side wall of sealing seat 13 into the material cylinder 90. After blowing is completed, telescopic power element 31 drives pressure plate 32 and docking cylinder 34 to rise synchronously. Since sealing gasket 14 is a rubber gasket, sealing gasket 14 rebounds and resets. Moreover, under the action of elastic element 12, support 11 rises, thereby driving sealing seat 13 to rise until sealing gasket 14 abuts against the outer side wall of sealing seat 13, thereby preventing powder leakage in material cylinder 90. At the same time as pressure plate 32 and docking cylinder 34 rise, dust extraction system is activated, air pipe 42 draws air to remove residual powder in sleeve 20, telescopic cover 33 and docking cylinder 34, preventing powder leakage.

[0034] The powder feeding device 100 of this utility model presses down the support 11 by the pressure plate 32, so that the sealing seat 13 moves away from the cover plate 92 and opens the feed port 920 until one end of the docking cylinder 34 abuts against the cover plate 92. At this time, the docking cylinder 34 connects to the feed port 920 of the cover plate 92 to realize feeding and prevent powder leakage. After feeding is completed, the pressure plate 32 moves away from the support 11. Under the action of the elastic element 12, the sealing seat 13 seals the feed port 920 of the cover plate 92 to prevent powder leakage. It is convenient to use.

[0035] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0036] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A powder feeding device, characterized by The device includes a sealing assembly, a sleeve, and a telescopic assembly. The sealing assembly includes a support, an elastic element, and a sealing seat. The support is slidably mounted on the cover plate of the material cylinder. One end of the elastic element abuts against the cover plate, and the other end abuts against the support. The sealing seat is installed on the support and selectively seals the feed inlet of the cover plate as the support rises and falls. The sleeve is installed on a support. The telescopic assembly includes a telescopic power element, a pressure plate, a telescopic cover, and a connecting cylinder. The telescopic power element is installed on the sleeve and is used to drive the pressure plate to rise and fall. The pressure plate is used to drive the support to slide. One end of the telescopic cover is connected to one end of the sleeve, and the other end is connected to the connecting cylinder. The connecting cylinder is installed on the pressure plate, and one end of the connecting cylinder abuts against the cover plate.

2. The powder feeding device according to claim 1, wherein The sealing assembly further includes a sealing gasket, which is installed on the cover plate and is positioned corresponding to the feed inlet of the cover plate. The sealing gasket is used to abut against the outer side of the sealing seat. The sealing gasket has a through hole communicating with the feed inlet, and the diameter of the through hole is smaller than the diameter of the feed inlet.

3. The powder feeding device according to claim 2, wherein The telescopic assembly also includes a fixing plate, which is installed at the end of the docking cylinder away from the telescopic cover, and the fixing plate is used to abut against the top of the sealing gasket.

4. The powder feeding device according to claim 2, wherein The sealing gasket is a rubber gasket, and the end of the docking cylinder away from the telescopic cover is used to bend the inner side of the sealing gasket; the aperture of the docking cylinder is smaller than the aperture of the feed inlet, and the aperture of the docking cylinder is larger than the aperture of the through hole.

5. The powder feeding device according to claim 1, wherein The support includes a base plate and multiple support columns. The sealing seat is installed on the base plate. One end of each support column is installed on the base plate, and the other end passes through the cover plate. Each support column is arranged along the periphery of the base plate. There are multiple elastic elements, and each elastic element corresponds to one support column. Each elastic element is sleeved on the support column, with one end of the elastic element abutting the cover plate and the other end abutting one end of the support column.

6. The powder feeding device according to claim 1, wherein The telescopic assembly also includes a surrounding plate, a pad, a column, and a spring. The surrounding plate is sleeved on the outside of the docking cylinder. There are multiple pads, columns, and springs, and they correspond one-to-one. The pads are installed on the pressure plate, and each pad is arranged along the perimeter of the pressure plate. The column passes through the pad and the surrounding plate. The spring is sleeved on the column, with one end of the spring abutting against the surrounding plate and the other end abutting against one end of the column.

7. The powder feeding device according to claim 1, wherein The telescopic assembly also includes a buffer installed on the sleeve, one end of which is used to abut against the pressure plate.

8. The powder feeding device according to claim 1, wherein The sleeve includes a cylindrical body and a support portion installed on the outside of the cylindrical body, and the telescopic power element is installed on the support portion; there are multiple support portions and multiple telescopic power elements, and each support portion is arranged along the periphery of the cylindrical body.

9. The powder feeding device according to claim 1, wherein It also includes a dust removal assembly, which includes a plurality of nozzles installed on the docking cylinder, each nozzle being arranged along the periphery of the docking cylinder, and the nozzles being used to blow air toward the outside of the sealing seat.

10. The powder feeding device according to claim 9, wherein The dust removal assembly also includes an air pipe, one end of which is connected to the sleeve and the other end of which is connected to the dust extraction system.

Images