CN213139269U

CN213139269U - Material nozzle with reverse air pumping function

Info

Publication number: CN213139269U
Application number: CN202021579599.6U
Authority: CN
Inventors: 时俊超
Original assignee: Haver Technologies Tianjin Co ltd
Current assignee: Haver Technologies Tianjin Co ltd
Priority date: 2020-08-03
Filing date: 2020-08-03
Publication date: 2021-05-07
Anticipated expiration: 2030-08-03

Abstract

The utility model relates to the technical field of material nozzles matched with mechanical filling, and discloses a material nozzle with a reverse air exhaust function, which comprises a material guide pipe and a material nozzle body connected with the material guide pipe, wherein an expansion sleeve is sleeved outside the material guide pipe, a back-pumping exhaust pipeline and an air blowing pipeline are arranged in the material guide pipe, and the back-pumping exhaust pipeline is connected with an air exhaust device and extends into a filter of a material bin; the material nozzle ensures that a bag without air permeability can be used during filling of certain specific powder and granular materials, sealing filling can be smoothly carried out, air in the bag is discharged simultaneously, clean filling is realized, and a better packaging effect is provided for automatic stacking. And a large amount of dust generated in the filling process is avoided, so that the material waste is avoided, the environment pollution is avoided, and the safety of workers is threatened.

Description

Material nozzle with reverse air pumping function

Technical Field

The utility model relates to a supporting material mouth technical field of mechanical filling, concretely relates to material mouth with reverse function of bleeding.

Background

At present, powder and granular materials are mostly filled automatically or semi-automatically and mechanically, and the powder and the granular materials are filled into a material bag through a material nozzle. However, during filling, air and materials enter the bag in most cases, and the bag is usually vented by the following method: 1. using a bag with certain air permeability, and discharging air through micropores on the surface of the bag during filling; 2. a certain amount of space is reserved between the filling opening and the valve opening of the bag, and air is discharged through the space.

However, some powders and granules, such as most materials in chemical and food industries, need to be sealed and filled due to their own characteristics, and the filled bag cannot be affected by moisture and absorb water, so that strict requirements are put on the low air permeability of the bag, and some bags have almost no air permeability. In order to ensure that the materials can be smoothly filled under the condition of a bag without air permeability, the air in the bag is discharged at the same time, and automatic stacking is realized. Meanwhile, for some special materials, the bag without air permeability can not be filled in a sealing way, and if the bag is filled in a sealing way, the materials are difficult to fill into the bag. If non-sealed filling is adopted, a large amount of dust is generated in the filling process, so that the waste of materials and the pollution to the environment are caused, and the safety of workers is threatened. The applicant develops a material nozzle with a reverse air suction function through continuous research, development and attempt.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a material mouth with reverse air-extracting function, this material mouth guarantees to some specific powder and aggregate, can use the sack that does not have the gas permeability during the filling, also can seal the filling smoothly, and the air of discharge sack the inside simultaneously realizes clean filling, provides better packing effect for automatic pile up neatly. And a large amount of dust generated in the filling process is avoided, so that the material waste is avoided, the environment pollution is avoided, and the safety of workers is threatened.

In order to achieve the above object, the present invention provides the following technical solutions:

the utility model provides a material mouth with reverse air pumping function, includes the passage and the material mouth body of being connected with the passage, the passage overcoat is equipped with the inflation cover, be equipped with pumpback exhaust duct and gas blowing pipeline in the passage, pumpback exhaust duct is connected with air exhaust device, and extends to in the filter of feed bin.

Preferably, the material nozzle body is arranged in a reducing mode on one side, far away from the material guide pipe, of the material nozzle body, and a discharge hole of the material nozzle body is arranged in an inclined and downward mode.

Preferably, the air blowing pipeline extends into the material nozzle body and is externally connected with a first air pump for removing residual materials in the material nozzle body after filling.

Preferably, an inflation pipeline communicated with the expansion sleeve is arranged in the pipe wall of the material guide pipe, and the inflation pipeline is externally connected with a second air pump and used for inflating and deflating the expansion sleeve.

Preferably, the expansion sleeve comprises an expansion part and fixing parts arranged on two sides of the expansion part, and annular bosses are arranged on the fixing parts.

Preferably, the expansion sleeve further comprises fixing sleeves sleeved on two sides of the expansion sleeve, and the fixing sleeves are provided with inner grooves matched with the annular bosses for fixing the expansion sleeve.

Preferably, the annular boss or the expansion part is provided with a plurality of first through holes, the fixed sleeve is provided with a second through hole corresponding to the first through hole, the guide pipe is provided with a threaded hole corresponding to the first through hole, and the guide pipe sequentially penetrates through the second through hole and the first through hole through screws to be in threaded connection with the threaded hole.

Preferably, the expansion part is provided with an air inlet pipe, and the air inlet pipe is communicated with the inflation pipeline.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a material mouth guarantees to some specific powder and aggregate, can use the sack that does not have the gas permeability during the filling, also can seal the filling smoothly, and the air of the sack the inside of discharging simultaneously realizes clean filling, provides better packing effect for automatic pile up neatly. And a large amount of dust generated in the filling process is avoided, so that the material waste is avoided, the environment pollution is avoided, and the safety of workers is threatened.

Drawings

Fig. 1 is a schematic structural diagram of the material nozzle with the reverse air-pumping function.

Fig. 2 is a front view of fig. 1.

Fig. 3 is a side view of fig. 1.

Fig. 4 is a schematic structural diagram of the expansion sleeve and the fixing sleeve in the material nozzle with the reverse air-pumping function.

Fig. 5 is a sectional view of the expansion sleeve and the fixing sleeve in the material nozzle with the reverse air pumping function.

Fig. 6 is a schematic view of the nozzle with reverse air-pumping function in use.

In the drawings: 1-material guide pipe, 11-connecting flange, 2-material nozzle body, 21-material outlet, 3-expansion sleeve, 31-expansion part, 32-fixing part, 321-annular boss, 33-first through hole, 34-air inlet pipe, 4-evacuation exhaust pipeline, 5-air blowing pipeline, 6-fixing sleeve, 61-inner groove, 62-second through hole, 10-material nozzle, 20-packaging bag, 30-feeding box, 40-material bin and 41-filter.

Detailed Description

The invention is described in further detail below with reference to the figures and specific examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Example 1: referring to fig. 1-6, a preferred embodiment of the present invention provides a nozzle with reverse air-pumping function, which is suitable for filling powder and granular materials, such as most materials in chemical and food industries, and needs to be sealed and filled due to its characteristics, and after filling, the bag cannot be affected with moisture and is not allowed to absorb water, so that strict requirements are raised for low air permeability of the bag, and some bags have almost no air permeability. In order to ensure that the materials can be smoothly filled under the condition of a bag without air permeability, the air in the bag is discharged at the same time, and automatic stacking is realized. Meanwhile, for some special materials, the bag without air permeability can not be filled in a sealing way, and if the bag is filled in a sealing way, the materials are difficult to fill into the bag. If non-sealed filling is adopted, a large amount of dust is generated in the filling process, so that the waste of materials is caused, the environment is polluted, and the safety of workers is threatened.

Specifically, the material nozzle comprises a material guide pipe 1 and a material nozzle body 2 connected with the material guide pipe 1, an expansion sleeve 3 is sleeved outside the material guide pipe 1, a back-pumping exhaust pipeline 4 and an air blowing pipeline 5 are arranged in the material guide pipe 1, and the back-pumping exhaust pipeline 4 is connected with an air extractor and extends into a filter of the storage bin. The material nozzle body 2 is arranged in a reducing mode on one side, far away from the material guide pipe 1, and the material outlet 21 of the material nozzle body is arranged obliquely downwards, so that powder is prevented from rising and falling into the packaging bag 20 under the action of gravity.

In the embodiment, the air blowing pipeline 5 extends into the material nozzle body 2 and is externally connected with a first air pump for removing residual materials in the filled material nozzle body 2; and an inflation pipeline communicated with the expansion sleeve 3 is arranged in the pipe wall of the material guide pipe 1, and the inflation pipeline is externally connected with a second air pump and used for inflating and deflating the expansion sleeve 3. The expansion portion 31 is provided with an intake pipe 34, and the intake pipe 34 communicates with the inflation duct.

In the present embodiment, the expansion sleeve 3 includes an expansion portion 31 and fixing portions 32 provided on both sides of the expansion portion 31, and the fixing portions 32 are provided with annular bosses 321. The material nozzle further comprises a fixing sleeve 6 sleeved on two sides of the expansion sleeve 3, and the fixing sleeve 6 is provided with an inner groove 61 matched with the annular boss 321 for fixing the expansion sleeve 3.

Preferably, the annular boss 321 or the expansion part 31 is provided with a plurality of first through holes 33, the fixing sleeve 6 is provided with a second through hole 62 corresponding to the first through hole 33, the guide tube 1 is provided with a threaded hole corresponding to the first through hole 33, and the guide tube sequentially penetrates through the second through hole 62, the first through hole 33 and is in threaded connection with the threaded hole through screws.

The working principle is as follows:

when the packaging bag 20 is inserted onto the filling nozzle 10, the second air pump works, the expansion sleeve 3 is inflated to expand tightly in the valve port of the packaging bag, and the feeding channel and the packaging bag 20 form a closed space, so that dust cannot leak outwards during filling.

Then the material is filled in the bin 40, the material is filled into the packaging bag 20 through the feeding box 30, when the packaging bag 20 contains a large amount of materials and air, the negative pressure valve in the air extracting device and the air extracting device starts to work, the air and a small amount of dust in the packaging bag 20 are sucked away under the action of the negative pressure through the air exhaust pipeline 4, the air and the dust which are pumped out are discharged into the filter 41 of the bin 40, secondary filtration is carried out, the air is released to the outside, the dust falls back into the bin 40, and internal circulation is realized.

After the filling is finished, the first air pump works, air is blown out from the air blowing pipeline 5, and residual materials in the filling nozzle body 2 are removed.

The invention has been described in an illustrative manner, and it will be understood by those skilled in the art that various changes, modifications and equivalents may be made without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a material mouth with reverse function of bleeding, includes passage (1) and the material mouth body (2) of being connected with passage (1), passage (1) overcoat is equipped with inflation cover (3), its characterized in that, be equipped with in passage (1) and take back exhaust duct (4) and blow pipeline (5), take back exhaust duct (4) and be connected with air exhaust device, and extend to in the filter of feed bin.

2. The nozzle with the reverse air suction function as claimed in claim 1, wherein the nozzle body (2) is arranged with a diameter reduced on the side away from the material guiding pipe (1), and the discharge hole (21) is arranged obliquely downwards.

3. A nozzle with reverse pumping function according to claim 1, wherein the blowing pipe (5) extends into the nozzle body (2) and is externally connected with a first air pump for removing residual materials inside the nozzle body (2) after filling.

4. The nozzle with the reverse air pumping function as claimed in claim 1, wherein an inflation pipeline communicated with the expansion sleeve (3) is arranged in the tube wall of the material guiding tube (1), and the inflation pipeline is externally connected with a second air pump for inflating and deflating the expansion sleeve (3).

5. A nozzle with reverse suction function according to claim 4, characterized in that the expansion sleeve (3) comprises an expansion part (31) and fixing parts (32) arranged at both sides of the expansion part (31), and the fixing parts (32) are provided with annular bosses (321).

6. A nozzle with reverse pumping function according to claim 5, further comprising a fixing sleeve (6) sleeved on both sides of the expansion sleeve (3), wherein the fixing sleeve (6) is provided with an inner groove (61) matched with the annular boss (321) for fixing the expansion sleeve (3).

7. The nozzle with the reverse pumping function as claimed in claim 6, wherein the annular boss (321) or the expansion portion (31) is provided with a plurality of first through holes (33), the fixing sleeve (6) is provided with second through holes (62) corresponding to the first through holes (33), the material guiding pipe (1) is provided with threaded holes corresponding to the first through holes (33), and the threaded holes are connected with the threaded holes through the second through holes (62) and the first through holes (33) in sequence by screws.

8. A nozzle with reverse pumping function according to any one of claims 5-7, characterized in that the expansion part (31) is provided with an air inlet pipe (34), and the air inlet pipe (34) is communicated with the inflation pipeline.