Dust removal device for intubation tube type powder racking machine

Abstract

The utility model discloses a dust removal device for an insertion tube type powder filling machine, which is characterized in that a dust removal component is arranged along the running track of a filling needle and comprises a first side wall distributed on one side of a filling needle path and a second side wall distributed on the other side of the filling needle path, and a first inclined surface and a second inclined surface are arranged on the inner side wall of the dust removal component; an arc-shaped slit air suction channel is formed between the first inclined surface and the second inclined surface, so that the suction force is increased, and meanwhile, through the blocking effect of the first inclined surface and the second inclined surface, the back blowing force of the filling needle cannot blow out residual powder in the dust removal assembly to cause dust raising.

Description

Technical Field

[0001] This utility model relates to the field of powder packaging technology, and in particular to a dust removal device for a tube-type powder packaging machine. Background Technology

[0002] Chinese patent CN106477081B discloses an airflow-insertion type powder dispensing machine. During the process of the dispensing needle moving from the powder tray to the dispensing position and then moving back from the dispensing position to the powder tray after dispensing powder, powder may fall off the outer and inner walls of the dispensing needle, thus contaminating the clean environment.

[0003] Chinese patent CN216498113U discloses a powder dispensing filtration and dust removal device, including a dust collection hopper arranged along the moving path of the dispensing needle. The dust collection hopper is connected to a vacuum assembly, which can adsorb powder that falls from the dispensing needle during its movement from the dispensing position to the powder tray through vacuum adsorption. However, it has the following shortcomings: the lower part of the dust collection hopper is conical, and only one vacuum port is provided at the lower end of the cone, resulting in weak suction. At the same time, after the dispensing needle has finished dispensing powder, it will be back-blown with compressed air during its passage through the dust collection hopper to blow out any residual powder inside the needle. If powder remains inside the dust collection hopper due to the weak suction, it will be affected by the compressed air blown out from the dispensing needle, thus generating "dust" and polluting the environment. In addition, if powder adheres to the outer wall of the dispensing needle after it sucks powder from the powder tray, it is easy for it to fall into the bottle during the dispensing process, which will affect the filling volume, and this is also unacceptable. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the existing technology and provide a dust removal device for a tube-type powder dispensing machine that is less prone to dust generation and has more accurate dispensing.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A dust removal device for a cannula-type powder filling machine includes a first dust filter, a vacuum pumping component, and a dust removal assembly designed along the filling needle path. The dust removal assembly includes a first sidewall distributed on one side of the filling needle path and a second sidewall distributed on the other side of the filling needle path. A channel for the filling needle to move is formed between the first sidewall and the second sidewall. The dust removal assembly is connected to the vacuum pumping component.

[0007] As a further improvement to the above technical solution, the dust removal component is provided with a vacuum port, and the inner sidewall of the dust removal component is provided with a first inclined surface. One end of the first inclined surface is connected to the inner sidewall, and the other end forms an air intake channel with the inner sidewall. The first inclined surface is positioned above the vacuum port.

[0008] As a further improvement to the above technical solution, the dust removal assembly includes a dust removal hopper, with the first sidewall and the second sidewall disposed above the dust removal hopper.

[0009] As a further improvement to the above technical solution, the upper ends of the first and second sidewalls are higher than the running path of the injection needle orifice.

[0010] As a further improvement to the above technical solution, a second inclined surface is provided on the inner sidewall, and an air intake channel is formed between the first inclined surface and the second inclined surface.

[0011] As a further improvement to the above technical solution, the dust collector is provided with a pin, and the first and second side walls are provided with holes that are adapted to the pin.

[0012] As a further improvement to the above technical solution, a second dust filter device is installed inside the vacuum port.

[0013] As a further improvement to the above technical solution, a first air blowing port for purging the outer wall of the filling needle is provided on the first side wall, and the air blowing port is connected to an air inlet pipe.

[0014] As a further improvement to the above technical solution, the first sidewall and the second sidewall are connected at one end by a connecting part. Air passages are provided in the first sidewall, the second sidewall, and the connecting part. A second air blowing port for blowing the outer wall of the injection needle is opened on the second sidewall. The first air blowing port and the second air blowing port are connected by the air passage.

[0015] As a further improvement to the above technical solution, the air intake channel is an arc-shaped slit.

[0016] Compared with the prior art, the advantages of this utility model are as follows: A first inclined surface is provided on the inner side wall of the dust removal component. The first inclined surface is connected to the inner side wall of the dust removal component, and the other end forms an air intake channel with the inner side wall. The first inclined surface is placed above the vacuum port. Thus, after the powder is sucked in, even if it is not sucked into the vacuum port, it will remain between the air intake channel and the vacuum port. The powder is not easily stirred up when the filling needle is back-blown. In addition, an air blowing port is opened on the first side wall, and an air inlet pipe is connected to the air blowing port. Thus, when the filling needle passes by, the air blowing port on the first side wall blows the outer wall of the filling needle.

[0017] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0018] Figure 1 This is a cross-sectional view of the dust removal device of this utility model.

[0019] Figure 2 This is a cross-sectional view of the dust removal component of this utility model.

[0020] Figure 3 This is an axonometric view of the dust removal device of this utility model.

[0021] Figure 4 This is a view of the motion trajectory of the injection needle in this utility model.

[0022] The labels in the diagram represent:

[0023] 1. First dust filter; 2. Vacuuming component; 3. Dust removal assembly; 31. First inclined surface; 33. Suction channel; 34. Dust collection hopper; 35. First side wall; 36. Second side wall; 37. Second inclined surface; 4. Vacuum port; 42. Second dust filter; 6. First air blowing port; 61. Air inlet pipe; Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] Figures 1 to 4 This illustration shows an embodiment of the present invention. In this embodiment, the dust removal component 3 is connected to the first dust filter device 1. The dust removal component 3 is arranged along the movement trajectory of the filling needle, increasing the dust collection coverage area and improving the dust removal efficiency. The dust removal component 3 has a first sidewall 35 and a second sidewall 36 on both sides of the filling needle path. Preferably, the upper ends of the first sidewall 35 and the second sidewall 36 are higher than the running path of the filling needle opening, so that the first sidewall 35 and the second sidewall 36 play a blocking role against the surrounding ambient wind, preventing the needle opening from being affected by the surrounding ambient wind and causing powder leakage. The inner sidewall of the dust removal component 3 has a first inclined surface 31 and a second inclined surface 37, forming an air suction channel between the first inclined surface 31 and the second inclined surface 37. Preferably, the air suction channel is an arc-shaped slit, connected to a vacuum port 4 below. The total area of ​​the slit is smaller than the area of ​​the vacuum port 4, thereby increasing the suction force.

[0026] Furthermore, in this embodiment, the dust removal assembly 3 includes a dust removal hopper 34, with a first sidewall 31 and a second sidewall 36 disposed above the dust removal hopper 34. At least two pins are provided on the dust removal hopper 34, and holes matching the pins are provided on the first sidewall 31 and the second sidewall. The pins and holes work together to ensure their relative positions are fixed. A first inclined surface 31 and a second inclined surface 37 are disposed inside the dust removal hopper 34, and a vacuum port 4 is disposed below the first inclined surface 31 and the second inclined surface 37. A cavity exists between the first inclined surface 31 and the second inclined surface 37 and the vacuum port 4. A second dust filter device 42 is fitted inside the vacuum port 4. When powder is sucked in through the slits of the first inclined surface 31 and the second inclined surface 37, even if some powder remains in the cavity and is not sucked into the vacuum port, the powder remaining in the cavity during backflushing of the filling needle will not be dispersed and thus enter the filling environment due to the blocking effect of the first inclined surface 31 and the second inclined surface 37.

[0027] Furthermore, in this embodiment, a first air inlet 6 is provided on the first side wall 35 to purge the outer wall of the filling needle. The first air inlet 6 is connected to an air inlet pipe 61. By providing the first air inlet 6, the outer wall of the filling needle can be purged when the filling needle moves between the first side wall 31 and the second side wall 36.

[0028] Furthermore, in this embodiment, a second air inlet for purging the outer wall of the filling needle is also provided on the second sidewall 36. The second air inlet and the first air inlet 6 are respectively located on both sides of the moving path of the filling needle, so that air can be blown on both sides of the filling needle, resulting in a better purging effect.

[0029] Furthermore, in this embodiment, the first sidewall 31 and the second sidewall 36 are connected at one end by a connecting part. The first sidewall, the second sidewall and the connecting part are provided with air passages. The air passages of the three are connected, so that when the air intake pipe is connected to the first sidewall 31, there is also gas at the second air outlet. At the same time, only one compressed air is needed, and the structure is simple.

[0030] Furthermore, in this embodiment, the suction channel is an arc-shaped slit with an area smaller than that of the vacuum port, which better matches the trajectory of the injection needle.

[0031] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make many possible variations and modifications to the present invention, or modify it into equivalent embodiments, without departing from the scope of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention, without departing from the content of the present invention, should fall within the protection scope of the present invention.

Claims

1. A dust removal device for a tube-type powder dispensing machine, characterized in that: The device includes a first dust filter (1), a vacuum component (2), and a dust removal assembly (3) designed along the needle filling path. The dust removal assembly (3) includes a first sidewall (35) distributed on one side of the needle filling path and a second sidewall (36) distributed on the other side of the needle filling path. A channel for the needle filling is formed between the first sidewall (35) and the second sidewall (36). The dust removal assembly (3) is connected to the vacuum component (2). The dust removal assembly (3) is provided with a vacuum port (4). The inner sidewall of the dust removal assembly is provided with a first inclined surface (31). One end of the first inclined surface (31) is connected to the inner sidewall, and the other end forms an air intake channel (33) between the first inclined surface (31) and the inner sidewall. The first inclined surface (31) is positioned above the vacuum port (4).

2. The dust removal device according to claim 1, characterized in that: The dust removal assembly includes a dust collection hopper (34), with the first sidewall (35) and the second sidewall (36) disposed above the dust collection hopper.

3. The dust removal device according to claim 1, characterized in that: The upper ends of the first sidewall (35) and the second sidewall (36) are higher than the running path of the injection needle orifice.

4. The dust removal device according to claim 1, characterized in that: A second inclined surface (37) is provided on the inner sidewall, and an air intake channel (33) is formed between the first inclined surface (31) and the second inclined surface (37).

5. The dust removal device according to claim 2, characterized in that, The dust collector (34) is provided with a pin, and the first side wall (35) and the second side wall (36) are provided with holes that are adapted to the pin.

6. The dust removal device according to claim 1, characterized in that: The vacuum port (4) is fitted with a second dust filter device (42).

7. The dust removal device according to claim 1, characterized in that: The first sidewall (35) is provided with a first air inlet (6) for blowing the outer wall of the filling needle, and the first air inlet (6) is connected to an air inlet pipe (61).

8. The dust removal device according to claim 7, characterized in that: The first sidewall (35) and the second sidewall (36) are connected at one end by a connecting part. Air passages are provided in the first sidewall (35), the second sidewall (36) and the connecting part. A second air blowing port for blowing the outer wall of the injection needle is provided on the second sidewall (36). The first air blowing port (6) and the second air blowing port are connected by the air passage.

9. The dust removal device according to claim 1, characterized in that: The air intake channel is an arc-shaped slit.

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