CN220751340U - Constant pressure automatic weighing device - Google Patents
Constant pressure automatic weighing device Download PDFInfo
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- CN220751340U CN220751340U CN202322379313.XU CN202322379313U CN220751340U CN 220751340 U CN220751340 U CN 220751340U CN 202322379313 U CN202322379313 U CN 202322379313U CN 220751340 U CN220751340 U CN 220751340U
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- 238000005303 weighing Methods 0.000 title claims abstract description 129
- 239000000428 dust Substances 0.000 claims abstract description 84
- 239000000843 powder Substances 0.000 claims abstract description 33
- 230000007704 transition Effects 0.000 claims description 16
- 230000001154 acute effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 description 17
- 230000008569 process Effects 0.000 description 14
- 238000010521 absorption reaction Methods 0.000 description 6
- 238000009423 ventilation Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000009700 powder processing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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- Weight Measurement For Supplying Or Discharging Of Specified Amounts Of Material (AREA)
Abstract
The utility model provides a constant pressure automatic weighing device, comprising: the weighing hopper is used for accommodating powder so as to weigh the powder; the air inlet channel is arranged at the top of the weighing hopper and is used for ventilating the weighing hopper; the air outlet channel is arranged at the top of the weighing hopper and is arranged at intervals with the air inlet channel; the dust removing assembly is communicated with the air outlet channel, so that when dust in the weighing hopper flows into the dust removing assembly through the air outlet channel, gas is introduced into the weighing hopper, and the pressure value in the weighing hopper is constant. The utility model solves the problem of lower weighing precision of powder in the prior art.
Description
Technical Field
The utility model relates to the technical field of powder weighing, in particular to a constant-pressure automatic weighing device.
Background
At present, in the process of powder processing and manufacturing, particularly in the batching process, powder needs to be weighed so as to mix different kinds of powder.
In the existing weighing hopper, as shown in fig. 1, a dust removing air port and an air inlet are provided with the same opening, and when powder is weighed, dust generated in the weighing hopper is removed through the dust removing air port.
However, in the above-described weighing method, since the powder causes a pressure change in the hopper, the weighing result is inaccurate during the weighing process, and the weighing accuracy is lowered.
Disclosure of Invention
The utility model mainly aims to provide a constant-pressure automatic weighing device so as to solve the problem of lower weighing precision of powder in the prior art.
In order to achieve the above object, the present utility model provides a constant pressure automatic weighing apparatus comprising: the weighing hopper is used for accommodating powder so as to weigh the powder; the air inlet channel is arranged at the top of the weighing hopper and is used for ventilating the weighing hopper; the air outlet channel is arranged at the top of the weighing hopper and is arranged at intervals with the air inlet channel; the dust removing assembly is communicated with the air outlet channel, so that when dust in the weighing hopper flows into the dust removing assembly through the air outlet channel, gas is introduced into the weighing hopper, and the pressure value in the weighing hopper is constant.
Further, the constant pressure automatic weighing device further includes: the two ends of the connecting pipe group are respectively communicated with the air outlet channel and the dust removing component, and at least part of the connecting pipe group is arranged in a telescopic way.
Further, the dust removal subassembly is located the side of weighing hopper, and the junction stack includes: the two ends of the first air pipe are respectively communicated with the air outlet channel and the dust removing assembly, and at least part of the first air pipe is obliquely arranged relative to the horizontal plane.
Further, the included angle between the axis of the first air pipe and the horizontal plane is 30-75 degrees.
Further, one end of the first air pipe, which is far away from the dust removal component, is provided with an extension pipe section, a first included angle is formed between the extension direction of the extension pipe section and the extension direction of the first air pipe, and the extension pipe section is communicated with the air outlet channel.
Further, the connecting tube group further includes: the two ends of the transition pipe section are respectively communicated with the first air pipe and the air outlet channel, the transition pipe section comprises a first pipe section and a second pipe section which are mutually communicated, the first pipe section is communicated with the air outlet channel, and the second pipe section is communicated with the first air pipe; a second included angle is formed between the extending direction of the first pipe section and the extending direction of the second pipe section, and the second included angle is an acute angle or an obtuse angle.
Further, the transition pipe section is a flexible piece; and/or the transition pipe section is telescopically arranged.
Further, the constant pressure automatic weighing device further includes: the air outlet channel is arranged in the air outlet pipe section, the air outlet channel is arranged on the weighing hopper, and the air outlet channel is arranged on the weighing hopper.
Further, the constant pressure automatic weighing device further includes: the direct-current pipe section is at least partially positioned in the air outlet channel, and two ends of the direct-current pipe section are respectively communicated with the converging pipe section and the dust removal component; wherein, direct current pipe section and confluence pipe section are integrated into one piece structure.
Further, the constant pressure automatic weighing device further includes: the air inlet end is arranged on the weighing hopper, and extends towards the direction away from the weighing hopper; the induced air fan is arranged on the second air pipe and is used for guiding air flow into the air inlet channel.
By applying the technical scheme of the utility model, the constant-pressure automatic weighing device comprises a weighing hopper, an air inlet channel, an air outlet channel and a dust removal component, wherein the weighing hopper is used for accommodating powder so as to weigh the powder; the air inlet channel is arranged at the top of the weighing hopper and is used for ventilating the weighing hopper; the air outlet channel is arranged at the top of the weighing hopper and is arranged at intervals with the air inlet channel; the dust removal assembly is communicated with the air outlet channel, so that when dust in the weighing hopper flows into the dust removal assembly through the air outlet channel, gas is introduced into the weighing hopper, and the pressure value in the weighing hopper is constant. In the practical application process, when weighing in weighing hopper is let in to the powder, can produce a large amount of dust, the dust removal subassembly work this moment, inhale the dust in the dust removal subassembly and remove dust, because the dust removal subassembly utilizes the atmospheric pressure to keep away from and carry out the dust absorption, consequently can lead to weighing the pressure differential between the atmospheric pressure in the hopper and the external environment atmospheric pressure in the dust removal process, consequently, let in the air current in to weighing the hopper through the air inlet passageway, air-out passageway and air inlet passageway are independent control respectively, guarantee the pressure balance in the weighing hopper to improve the weighing accuracy to the powder.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:
FIG. 1 shows a schematic construction of a constant pressure automatic weighing apparatus of the prior art;
fig. 2 shows a schematic structural view of a constant pressure automatic weighing apparatus according to the present utility model;
fig. 3 shows a schematic diagram of the fitting of the confluence pipe section and the direct-current pipe section of the constant-pressure automatic weighing apparatus according to the present utility model.
Wherein the above figures include the following reference numerals:
1. weighing a hopper; 2. an air inlet channel; 3. an air outlet channel; 4. a dust removal assembly; 5. connecting the tube group; 51. a first air duct; 510. extending the pipe section; 52. a transition pipe section; 521. a first pipe section; 522. a second pipe section; 61. a confluence pipe section; 62. a direct current pipe section; 7. and a second air pipe.
Detailed Description
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
Referring to fig. 2 and 3, the present utility model provides a constant pressure automatic weighing apparatus, comprising: a weighing hopper 1 for accommodating powder to weigh the powder; an air inlet channel 2 is arranged at the top of the weighing hopper 1, and ventilation is carried out to the inside of the weighing hopper 1 through the air inlet channel 2; the air outlet channel 3 is arranged at the top of the weighing hopper 1 and is arranged at intervals with the air inlet channel 2; the dust removing assembly 4 is communicated with the air outlet channel 3, so that when dust in the weighing hopper 1 flows into the dust removing assembly 4 through the air outlet channel 3, gas is introduced into the weighing hopper 1, and the pressure value in the weighing hopper 1 is constant.
The constant-pressure automatic weighing device provided by the utility model comprises a weighing hopper 1, an air inlet channel 2, an air outlet channel 3 and a dust removal component 4, wherein the weighing hopper 1 is used for accommodating powder so as to weigh the powder; the air inlet channel 2 is arranged at the top of the weighing hopper 1, and ventilation is carried out to the inside of the weighing hopper 1 through the air inlet channel 2; the air outlet channel 3 is arranged at the top of the weighing hopper 1 and is arranged at intervals with the air inlet channel 2; the dust removing assembly 4 is communicated with the air outlet channel 3, so that when dust in the weighing hopper 1 flows into the dust removing assembly 4 through the air outlet channel 3, gas is introduced into the weighing hopper 1, and the pressure value in the weighing hopper 1 is constant. In the practical application process, when weighing in weighing hopper 1 is let in to the powder, can produce a large amount of dust, the dust removal subassembly 4 work this moment, inhale dust in the dust removal subassembly 4 and remove dust, because dust removal subassembly 4 utilizes atmospheric pressure to keep away from and carry out the dust absorption, consequently can lead to producing pressure differential between the atmospheric pressure in weighing hopper 1 and the external environment atmospheric pressure in the dust removal process, consequently, let in the air current in weighing hopper 1 through air inlet channel 2, air outlet channel 3 and air inlet channel 2 are independent control respectively, guarantee the pressure balance in weighing hopper 1, in order to improve the weighing precision to the powder.
Specifically, the constant pressure automatic weighing device further includes: the connecting pipe group 5, the both ends of connecting pipe group 5 communicate with air-out passageway 3 and dust removal subassembly 4 respectively, and the at least part of connecting pipe group 5 is telescopically setting. The position of the dust removing assembly 4 can be adjusted according to the actual use requirement, so that the dust removing assembly 4 is communicated with the weighing hopper 1 through the connecting pipe group 5.
In particular, as shown in fig. 2, the dust removing assembly 4 is located at a side of the weighing hopper 1, and the connecting tube group 5 includes: the first tuber pipe 51, the both ends of first tuber pipe 51 communicate with air-out passageway 3 and dust removal subassembly 4 respectively, and at least part of first tuber pipe 51 sets up for the horizontal plane slope. After the dust removal of the dust removal assembly 4 is completed, dust deposited on the inner wall of the first air pipe 51 can slide into the dust removal assembly 4 under the action of gravity, and the first air pipe 51 is not required to be cleaned manually.
In the embodiment provided by the utility model, the included angle between the axis of the first air pipe 51 and the horizontal plane is 30 degrees to 75 degrees. Preferably, the included angle between the axis of the first air pipe 51 and the horizontal plane is 45 degrees, so that the dust collection and ventilation area is prevented from being influenced by the accumulation of powder particles in the first air pipe 51, and the aim of self-cleaning is fulfilled.
Because the first air pipe 51 is obliquely arranged, in order to facilitate the communication between the first air pipe 51 and the air outlet channel 3, an extending pipe section 510 is arranged at one end of the first air pipe 51, which is far away from the dust removing component 4, and a first included angle is formed between the extending direction of the extending pipe section 510 and the extending direction of the first air pipe 51, and the extending pipe section 510 is communicated with the air outlet channel 3.
Further, the connecting tube group 5 further includes: the transition pipe section 52, two ends of the transition pipe section 52 are respectively communicated with the first air pipe 51 and the air outlet channel 3, the transition pipe section 52 comprises a first pipe section 521 and a second pipe section 522 which are mutually communicated, the first pipe section 521 is communicated with the air outlet channel 3, and the second pipe section 522 is communicated with the first air pipe 51; the extending direction of the first pipe section 521 and the extending direction of the second pipe section 522 have a second included angle therebetween, and the second included angle is an acute angle or an obtuse angle. This arrangement prevents air resistance from being generated when air flows directly from the air outlet channel 3 into the first air pipe 51, and enables air flow to be smoother.
Preferably, the transition tube segment 52 is a flexible member; and/or the transition tube segment 52 may be telescopically disposed. Wherein the transition tube segment 52 is a bellows.
In one embodiment provided by the present utility model, as shown in fig. 3, the constant pressure automatic weighing apparatus further includes: the converging tube section 61, at least part of the air outlet channel 3 is located in the converging tube section 61, the converging tube section 61 comprises an air inlet end and an air outlet end which are oppositely arranged, the air inlet end is arranged on the weighing hopper 1, and the sectional area of the airflow flow section of the converging tube section 61 is gradually reduced along the direction from the air inlet end to the air outlet end.
The constant pressure automatic weighing device further comprises: a direct current pipe section 62, at least part of the air outlet channel 3 is positioned in the direct current pipe section 62, and two ends of the direct current pipe section 62 are respectively communicated with the confluence pipe section 61 and the dust removal component 4; wherein, the direct current pipe section 62 and the converging pipe section 61 are of an integrated structure. The arrangement can converge the air flow through the converging pipe section 61, and in the process that the air flow gradually flows into the direct current pipe section 62 from the converging pipe section 61, the flow velocity of the air flow is increased due to the change of the flow cross section, so that the dust removal efficiency is improved.
In a specific implementation process, the constant-pressure automatic weighing device further comprises: the second air pipe 7, at least part of the air inlet channel 2 is positioned in the second air pipe 7, the second air pipe 7 comprises an air inlet end and an air outlet end which are oppositely arranged, the air outlet end is arranged on the weighing hopper 1, and the air inlet end extends towards the direction away from the weighing hopper 1; the induced air fan is arranged on the second air pipe 7, and the induced air fan is used for guiding air flow into the air inlet channel 2.
The constant pressure automatic weighing device of this application leads to external air filling automatically regulated, guarantees to remain the constant pressure state throughout at the during operation, guarantees to weigh the precision. Meanwhile, the horizontal air pipe is changed into an inclined air pipe (first air pipe) with an included angle of more than or equal to 45 degrees with the horizontal direction, the accumulated powder in the pipeline does not need to be cleaned manually and regularly, the pipe orifice of the air outlet pipe is directly connected with the weighing hopper 1, and meanwhile, the operation dust is reduced. To current dust absorption tuber pipe spatial layout redesign, cancel all horizontal pipelines, with taking angle (contained angle is greater than or equal to 45) dust absorption pipeline (first tuber pipe), stop powder granule and pile up influence dust absorption ventilation area in the pipeline, reach self-cleaning purpose, go out tuber pipe mouth of pipe and title body lug connection simultaneously, reduced the operation raise dust, air inlet passageway and air-out passageway separate design, guarantee to remain constant voltage state throughout at the during operation at the title body, guarantee weighing precision. The inclination angle of the air outlet pipe is larger than the natural stacking angle of the powder, so that the powder is prevented from being stacked in the air outlet pipe, and the powder stacked in the air outlet pipe is prevented from being cleaned manually at regular intervals; the air outlet pipe and the air inlet pipe are separately designed, so that the dust removal process is in a constant pressure state, and the accuracy of the actual value and the set value of the internal glass raw material is higher; the mouth of the air outlet pipe is directly connected with the scale body, and environmental dust at the gap between the mouth of the air outlet pipe and the scale body is completely eradicated.
From the above description, it can be seen that the above embodiments of the present utility model achieve the following technical effects:
the constant-pressure automatic weighing device provided by the utility model comprises a weighing hopper 1, an air inlet channel 2, an air outlet channel 3 and a dust removal component 4, wherein the weighing hopper 1 is used for accommodating powder so as to weigh the powder; the air inlet channel 2 is arranged at the top of the weighing hopper 1, and ventilation is carried out to the inside of the weighing hopper 1 through the air inlet channel 2; the air outlet channel 3 is arranged at the top of the weighing hopper 1 and is arranged at intervals with the air inlet channel 2; the dust removing assembly 4 is communicated with the air outlet channel 3, so that when dust in the weighing hopper 1 flows into the dust removing assembly 4 through the air outlet channel 3, gas is introduced into the weighing hopper 1, and the pressure value in the weighing hopper 1 is constant. In the practical application process, when weighing in weighing hopper 1 is let in to the powder, can produce a large amount of dust, the dust removal subassembly 4 work this moment, inhale dust in the dust removal subassembly 4 and remove dust, because dust removal subassembly 4 utilizes atmospheric pressure to keep away from and carry out the dust absorption, consequently can lead to producing pressure differential between the atmospheric pressure in weighing hopper 1 and the external environment atmospheric pressure in the dust removal process, consequently, let in the air current in weighing hopper 1 through air inlet channel 2, air outlet channel 3 and air inlet channel 2 are independent control respectively, guarantee the pressure balance in weighing hopper 1, in order to improve the weighing precision to the powder.
It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the present application described herein may be capable of being practiced otherwise than as specifically illustrated and described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. A constant pressure automatic weighing apparatus comprising:
a weighing hopper (1) for containing powder to weigh the powder;
an air inlet channel (2) is arranged at the top of the weighing hopper (1), and the weighing hopper (1) is ventilated through the air inlet channel (2);
an air outlet channel (3) which is arranged at the top of the weighing hopper (1) and is arranged at intervals with the air inlet channel (2);
the dust removing assembly (4) is communicated with the air outlet channel (3), so that when dust in the weighing hopper (1) flows into the dust removing assembly (4) through the air outlet channel (3), gas is introduced into the weighing hopper (1), and the pressure value in the weighing hopper (1) is constant.
2. The constant pressure automatic weighing apparatus of claim 1, further comprising:
the air outlet channel is communicated with the dust removal assembly (4), and the air outlet channel is connected with the dust removal assembly through the air outlet channel.
3. Constant pressure automatic weighing apparatus according to claim 2, characterized in that said dust removal assembly (4) is located laterally of said weighing hopper (1), said connecting tube set (5) comprising:
the dust removal device comprises a first air pipe (51), wherein two ends of the first air pipe (51) are respectively communicated with the air outlet channel (3) and the dust removal component (4), and at least part of the first air pipe (51) is obliquely arranged relative to the horizontal plane.
4. A constant pressure automatic weighing apparatus according to claim 3, characterized in that the angle between the axis of said first air duct (51) and the horizontal plane is 30 ° to 75 °.
5. A constant pressure automatic weighing apparatus according to claim 3, wherein an end of the first air pipe (51) remote from the dust removal assembly (4) is provided with an extended pipe section (510), a first included angle is formed between the extending direction of the extended pipe section (510) and the extending direction of the first air pipe (51), and the extended pipe section (510) is communicated with the air outlet channel (3).
6. A constant pressure automatic weighing apparatus according to claim 3, wherein said connecting tube group (5) further comprises:
a transition pipe section (52), wherein two ends of the transition pipe section (52) are respectively communicated with the first air pipe (51) and the air outlet channel (3), the transition pipe section (52) comprises a first pipe section (521) and a second pipe section (522) which are mutually communicated, the first pipe section (521) is communicated with the air outlet channel (3), and the second pipe section (522) is communicated with the first air pipe (51);
a second included angle is formed between the extending direction of the first pipe section (521) and the extending direction of the second pipe section (522), and the second included angle is an acute angle or an obtuse angle.
7. The constant pressure automatic weighing apparatus of claim 6, wherein said transition tube segment (52) is a flexible member;
and/or the transition pipe section (52) is telescopically arranged.
8. The constant pressure automatic weighing apparatus of claim 1, further comprising:
the automatic weighing hopper comprises a confluence pipe section (61), wherein at least part of an air outlet channel (3) is positioned in the confluence pipe section (61), the confluence pipe section (61) comprises an air inlet end and an air outlet end which are oppositely arranged, the air inlet end is arranged on the weighing hopper (1), the cross section of the airflow flow section of the confluence pipe section (61) is gradually reduced along the direction from the air inlet end to the air outlet end.
9. The constant pressure automatic weighing apparatus of claim 8, further comprising:
a direct current pipe section (62), wherein at least part of the air outlet channel (3) is positioned in the direct current pipe section (62), and two ends of the direct current pipe section (62) are respectively communicated with the converging pipe section (61) and the dust removal assembly (4);
wherein the direct current pipe section (62) and the converging pipe section (61) are of an integrated structure.
10. The constant pressure automatic weighing apparatus of claim 1, further comprising:
the second air pipe (7), at least part of the air inlet channel (2) is positioned in the second air pipe (7), the second air pipe (7) comprises an air inlet end and an air outlet end which are oppositely arranged, the air outlet end is arranged on the weighing hopper (1), and the air inlet end extends towards a direction far away from the weighing hopper (1);
the induced air fan is arranged on the second air pipe (7) and is used for guiding air flow into the air inlet channel (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322379313.XU CN220751340U (en) | 2023-09-01 | 2023-09-01 | Constant pressure automatic weighing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322379313.XU CN220751340U (en) | 2023-09-01 | 2023-09-01 | Constant pressure automatic weighing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220751340U true CN220751340U (en) | 2024-04-09 |
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ID=90560289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322379313.XU Active CN220751340U (en) | 2023-09-01 | 2023-09-01 | Constant pressure automatic weighing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220751340U (en) |
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2023
- 2023-09-01 CN CN202322379313.XU patent/CN220751340U/en active Active
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