CN106704630B - Pneumatic valve for powder or granular materials and metering and split charging assembly - Google Patents
Pneumatic valve for powder or granular materials and metering and split charging assembly Download PDFInfo
- Publication number
- CN106704630B CN106704630B CN201710056243.0A CN201710056243A CN106704630B CN 106704630 B CN106704630 B CN 106704630B CN 201710056243 A CN201710056243 A CN 201710056243A CN 106704630 B CN106704630 B CN 106704630B
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- Prior art keywords
- rubber tube
- switch
- plates
- metering
- plate
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K7/00—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves
- F16K7/02—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with tubular diaphragm
- F16K7/08—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with tubular diaphragm constrictable by twisting
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/126—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
- Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics
Abstract
The invention relates to a pneumatic valve and a metering and split charging assembly for powder or granular materials. The two rubber tube fixing plates are arranged in parallel at a certain distance, and each rubber tube fixing plate is provided with a rubber tube perforation; the two switch plates can be relatively and slidably attached together, the two switch plates are arranged between the two rubber tube fixing plates in parallel, and rubber tube perforations are formed in each switch plate; the rubber pipes are arranged in the corresponding rubber pipe perforation holes in a penetrating way, and two ends of the rubber pipes are respectively in sealing contact with the corresponding rubber pipe fixing plates; the valve cylinder can drive the first switch plate and the second switch plate to move along opposite directions, so that the rubber tube is elastically deformed to be closed under the action of shearing force of the two switch plates. The metering and split charging assembly comprises a metering container and a pneumatic valve. The invention has simple structure and convenient installation and use.
Description
Technical Field
The invention relates to a device for metering and controlling the flow of powder or granular materials, in particular to a pneumatic valve for the powder or granular materials and a metering and split charging assembly.
Background
In the firework production process, due to the technological requirements, propellant powder (namely bright beads and unpacking powder) is required to be poured into the firework inner barrel. The propellant powder is a granular article similar to millet in size, and is filled manually in the past, so that the labor intensity of workers is high, the production efficiency is low, raw materials are easy to waste, and the product quality is influenced. Later, semi-automatic filling devices appear, but these devices still need the closure plate of manual operation filling, and every time filling all pull closure plate once, and repetitive work needs to consume very big physical power, and the workman contacts the medicine for a long time moreover, has very big influence to healthy, and the during operation contacts inflammable and explosive dangerous medicine, threatens personal safety.
In the process of filling with the propellant powder, charged components cannot be used for operation. Thus, there is currently no suitable control valve capable of controlling the flow of powder or particulate material through a passageway or preventing the flow thereof.
Accordingly, the present inventors have developed a pneumatic valve and metering and dispensing assembly for powder or granular materials to overcome the shortcomings of the prior art by years of experience and practice in the relevant industry.
Disclosure of Invention
The invention aims to provide a pneumatic valve for powder or granular materials, which can effectively control whether the powder or granular materials can flow through a channel, and has the advantages of simple structure and convenient installation and use.
Another object of the present invention is to provide a metering and dispensing assembly for powder or granular material that is capable of metering and dispensing the powder or granular material quantitatively.
The object of the invention is achieved by a pneumatic valve for powder or granular material, comprising:
the two rubber tube fixing plates are arranged in parallel at a certain distance, each rubber tube fixing plate is provided with rubber tube perforations, and the rubber tube perforations on the two rubber tube fixing plates are correspondingly arranged;
the two switch plates can be relatively and slidably attached together, the two switch plates are arranged between the two rubber tube fixing plates in parallel, the rubber tube perforation is arranged on each switch plate, and the rubber tube perforation on the switch plate corresponds to the rubber tube perforation on the rubber tube fixing plate;
the rubber tube capable of generating elastic deformation is penetrated in the corresponding rubber tube perforation, and two ends of the rubber tube are respectively in sealing contact with the corresponding rubber tube fixing plate; and
the valve cylinder comprises a first valve cylinder and a second valve cylinder; the first valve cylinder is connected with one end of a first switch plate and can drive the first switch plate to move along a first direction perpendicular to the axial direction of the rubber tube; the second valve cylinder is connected with one end of a second switch plate and can drive the second switch plate to move along a second direction opposite to the first direction; the distance of the first switch plate moving along the first direction and the distance of the second switch plate moving along the second direction are equal to the radius of the rubber tube, so that the rubber tube is elastically deformed and closed under the action of the shearing force of the two switch plates.
In a preferred embodiment of the present invention, both of the hose fixing plates are rectangular plates horizontally arranged; the pneumatic valve is also provided with two switch fixing plates which are respectively and vertically arranged on two opposite sides between the two rubber tube fixing plates; the first rubber tube fixing plate is connected with the upper end face of the switch fixing plate, and the second rubber tube fixing plate is connected with the lower end face of the switch fixing plate; the switch fixing plates are provided with guide grooves extending horizontally and linearly on one sides towards the switch plates, and the edges of two sides of the two switch plates are embedded into the guide grooves on the corresponding sides and can slide in the guide grooves; one side of the two rubber tube fixing plates, on which the switch fixing plates are not arranged, is provided with an air cylinder packaging shell, and the valve air cylinder is arranged in the air cylinder packaging shell.
In a preferred embodiment of the present invention, one end of the first switch plate extends into the cylinder packaging shell and is connected with the first valve cylinder; one end of the second switch plate extends into the cylinder packaging shell and is connected with the second valve cylinder; and a sealing plate is arranged on one side, opposite to the cylinder packaging shell, between the two rubber tube fixing plates, so that a closed space is formed between the two rubber tube fixing plates and in the cylinder packaging shell.
In a preferred embodiment of the present invention, the side surface of the pneumatic valve is provided with a mounting fixing member, and the mounting fixing member is a plate member, and is respectively disposed on two side surfaces where the switch fixing plate is located and connected with the corresponding switch fixing plate.
In a preferred embodiment of the present invention, the two switch plates are located at intermediate positions between the two hose fixing plates.
In a preferred embodiment of the invention, annular flanges protruding outwards in the radial direction are arranged at two ends of the rubber tube, the two ends of the rubber tube extend out of the corresponding rubber tube fixing plate, and the annular flanges respectively abut against the corresponding rubber tube fixing plate to form sealing contact.
The object of the invention is also achieved by a metering and sub-packaging assembly for powder or granular material, comprising a metering container and the pneumatic valve; the metering container is provided with a metering through hole which is communicated up and down; the pneumatic valve is arranged close to the bottom of the metering container and controls the opening and closing of the downward conduction path of the metering through hole.
In a preferred embodiment of the present invention, the metering container is in a shape of a flat plate, and the number and positions of the rubber tube perforations correspond to those of the metering through holes.
In a preferred embodiment of the present invention, the inner diameter of the rubber tube is not smaller than the inner diameter of the metering through hole; the metering container is fixedly connected to one of the rubber tube fixing plates.
Therefore, the pneumatic valve provided by the invention has the advantages that the rubber tube is extruded by adopting the two switch plates, so that the rubber tube is closed to prevent powder or granular materials from passing through the rubber tube, whether the powder or granular materials can flow through a channel or not can be effectively controlled, and the pneumatic valve is simple in structure and convenient to install and use. The metering and sub-packaging assembly can quantitatively meter and sub-package powder or granular materials by utilizing the cooperation of the pneumatic valve and the metering container.
Drawings
The following drawings are only for purposes of illustration and explanation of the present invention and are not intended to limit the scope of the invention. Wherein:
fig. 1: is a schematic diagram of the whole structure of the pneumatic valve.
Fig. 2: is a schematic diagram of the internal structure of the pneumatic valve.
Fig. 3: is a schematic structural view projected from the side of the pneumatic valve.
Fig. 4: is a schematic structural diagram of the metering and split charging assembly.
Fig. 5: the structure of the rubber tube in the pneumatic valve is schematically shown.
Detailed Description
For a clearer understanding of technical features, objects, and effects of the present invention, a specific embodiment of the present invention will be described with reference to the accompanying drawings.
Example 1
This embodiment is a preferred embodiment of the present invention, and as shown in fig. 1, 2 and 3, the present invention provides a pneumatic valve 27 for powder or granular material, the pneumatic valve 27 comprising two rubber tube fixing plates, two switch plates, a rubber tube 275 capable of elastic deformation, two switch fixing plates and two valve cylinders. The two hose fixing plates are rectangular plates which are horizontally arranged, and the first hose fixing plate 2711 and the second hose fixing plate 2712 are arranged in parallel at a certain distance from top to bottom, and the distance between the two hose fixing plates is approximately equal to the length of the hose 275. Each rubber tube fixing plate is uniformly provided with a plurality of rubber tube perforations 2713, the rubber tube perforations 2713 on the two rubber tube fixing plates are correspondingly arranged up and down, and the plurality of rubber tube perforations 2713 are arrayed to form a regular hexagon. Assuming that the upper side in fig. 1, 2 and 3 is the right side of the air-operated valve 27, the lower side is the left side of the air-operated valve 27, the left side is the front side of the air-operated valve 27, and the right side is the rear side of the air-operated valve 27. The two switch fixing plates are vertically arranged on the left side and the right side between the two rubber tube fixing plates respectively, the first rubber tube fixing plate 2711 is connected with the upper end face of the switch fixing plate, and the second rubber tube fixing plate 2712 is connected with the lower end face of the switch fixing plate; i.e., the first hose attachment plate 2711 is above and the second hose attachment plate 2712 is below. The first switch plate 2761 and the second switch plate 2762 can be relatively and slidably attached up and down, the two switch plates are arranged between the two rubber tube fixing plates in parallel, rubber tube through holes 2713 are formed in each switch plate, the rubber tube through holes 2713 in the switch plates correspond to the rubber tube through holes 2713 in the rubber tube fixing plates, and the switch plates are arranged in a regular hexagon mode. The switch fixed plate is towards one side of switch board all is equipped with the guide slot 2721 that horizontal straight line extends, and the left and right sides edge of two switch boards all imbeds in the guide slot 2721 of corresponding side, and the left and right sides of two switch boards is supported by the switch fixed plate and can be in slide in the guide slot 2721. As shown in fig. 5, the hose 275 is made of an elastic rubber material and is provided at both ends with annular flanges 2751 protruding radially outward. The number of the rubber hoses 275 is the same as that of the rubber hose perforation 2713, the rubber hoses 275 sequentially penetrate through the rubber hose fixing plates and the switch plates, the rubber hoses 275 penetrate through the corresponding rubber hose perforation 2713 up and down, both ends of the rubber hoses 275 extend out of the corresponding rubber hose fixing plates, and the annular flanges 2751 respectively abut against the corresponding rubber hose fixing plates, so that the rubber hoses 275 are stably fixed in the corresponding rubber hose perforation 2713. The two switch plates are positioned at the middle position of the rubber tube length in the vertical direction, namely, the two switch plates are positioned at the middle position between the two rubber tube fixing plates.
Further, the rear sides of the two rubber tube fixing plates are fixedly connected with the cylinder packaging shell 273, the cylinder packaging shell 273 is formed by buckling an upper plate and a lower plate, and the width of the cylinder packaging shell 273 is identical to that of the two rubber tube fixing plates. The rear side of the cylinder housing 273 is closed, and plate-shaped mounting fixtures 274 are respectively mounted on the left and right sides of the cylinder housing 273, and the mounting fixtures 274 and the switch fixtures on the left and right sides close the left and right sides of the air-operated valve 27. The mounting fixture 274 is used for connection between the pneumatic valve 27 and other components. The front sides of the two rubber tube fixing plates are connected with a sealing plate 278, the sealing plate 278 seals the front sides of the pneumatic valves 27, and the joints between the plates are sealed by adopting sealing measures, so that a sealed space is formed between the two rubber tube fixing plates and in the cylinder packaging shell 273, and powder particles are prevented from entering the sealed space during working. The first valve cylinder 2781 and the second valve cylinder 2782 are both fixed within the cylinder package 273. The first valve cylinder 2781 is connected to the rear end of the first switch plate 2761, and can drive the first switch plate 2761 to move back and forth along a direction perpendicular to the axial direction of the rubber tube. The second valve cylinder 2782 is connected to the rear end of the second switch plate 2762, and can drive the second switch plate 2762 to move back and forth along a direction perpendicular to the axial direction of the rubber tube 275. The moving direction of the first switch plate 2761 is opposite to the moving direction of the second switch plate 2762, i.e., the first switch plate 2761 moves with the second switch plate 2762 in a staggered manner. The distance of the forward movement of the first switch plate 2761 and the distance of the backward movement of the second switch plate 2762 are equal to the radius of the rubber tube, and after the two switch plates are moved alternately, the rubber tube is elastically deformed and closed under the action of the shearing force of the two switch plates. The rear end of the first switch plate 2761 extends into the cylinder packaging shell 273 and is connected with the first valve cylinder 2781; the rear end of the second switch plate 2762 extends into the cylinder package 273 and is connected to the second valve cylinder 2782. Since the first and second switch plates 2761 and 2762 are stacked one above the other, the first and second valve cylinders 2781 and 2782 may be mounted in the cylinder housing 273 one above the other.
The working principle of the pneumatic valve 27 is as follows: the movable part of the whole pneumatic valve 27 is an upper switch plate and a lower switch plate, the two switch plates are driven by an upper valve cylinder and a lower valve cylinder respectively, and the two switch plates move in the guide grooves 2721 of the switch fixing plates at the two sides. The two switch plates are pushed to move towards opposite directions simultaneously by controlling the upper valve cylinder and the lower valve cylinder to move simultaneously, namely, the upper valve cylinder drives the upper switch plate to move forward by the radius distance of the rubber tube, and simultaneously, the lower valve cylinder drives the lower switch plate to move backward by the radius distance of the rubber tube, corresponding rubber tube perforations 2713 on the two switch plates are staggered mutually to form shearing action on the middle part of the rubber tube, the middle part of the rubber tube is closed under the action of extrusion force, and the pneumatic valve 27 is in a closed state to prevent powder or granular materials from passing through the rubber tube. The upper and lower valve cylinders are controlled to simultaneously return to the initial state, the rubber tube perforation 2713 is aligned, the rubber tube returns to the original straight-through state, the pneumatic valve 27 is in the opened state, and powder or granular materials can pass through the rubber tube.
Example two
This embodiment provides a metering and dispensing assembly for powder or particulate material, as shown in fig. 4, comprising a metering container 26 and a pneumatic valve 27 as in embodiment one. The weighing container 26 has a disk shape, and a plurality of weighing through holes penetrating up and down are provided in the disk surface of the weighing container 26, and the volume of the weighing through holes is set according to the loading amount. The number and positions of the metering through holes are determined according to the number and positions of the inner cylinders in the inner cylinder cake unit, and the plurality of metering through holes are arranged in a regular hexagon in the embodiment. A pneumatic valve 27 is disposed closely to the lower surface of the metering container 26, and the pneumatic valve 27 is used for controlling the opening and closing of the downward conduction path of the metering through hole, so as to control whether the powder in the metering through hole is discharged out of the metering through hole downwards.
Specifically, the number and location of the hose perforations 2713 corresponds to the number and location of the metering through holes on the metering container 26. The metering container 26 is fixedly connected to the first rubber tube fixing plate 2711, the metering through hole corresponds to the rubber tube 275 vertically, and the inner diameter of the rubber tube 275 is not smaller than that of the metering through hole. If two sets of metering and dispensing assemblies are to be stacked one on top of the other, the first metering container 26 is located at the uppermost end, and the first metering container 26 is secured to the first hose securing plate 2711 of the first pneumatic valve 27; the upper end surface of the second metering container 26 is fixed on a second rubber tube fixing plate 2712 of the first pneumatic valve 27; the lower end surface of the second metering container 26 is fixed to the first rubber tube fixing plate 2711 of the second air operated valve 27. Each metering through hole corresponds to the rubber tube 275 vertically.
The metering and sub-packaging assembly works by closing the pneumatic valve 27, and powder particles in the metering container 26 connected to the pneumatic valve 27 are blocked in the rubber tube to finish metering. The pneumatic valve 27 is opened, and powder particles in the metering container 26 connected to the pneumatic valve 27 can leak into the receiving member below through the rubber tube, thereby completing the sub-packaging.
Therefore, the pneumatic valve provided by the invention has the advantages that the rubber tube is extruded by adopting the two switch plates, so that the rubber tube is closed to prevent powder or granular materials from passing through the rubber tube, whether the powder or granular materials can flow through a channel or not can be effectively controlled, and the pneumatic valve is simple in structure and convenient to install and use. The metering and sub-packaging assembly can quantitatively meter and sub-package powder or granular materials by utilizing the cooperation of the pneumatic valve and the metering container.
The foregoing is illustrative of the present invention and is not to be construed as limiting the scope of the invention. All combinations of features described in the detailed description are not necessarily solutions to the limitations of the invention, it being understood that these additional constructional features as well as operational improvements may be used alone or in combination with each other. It is therefore to be understood that the invention is not limited to any particular feature or combination of elements, and that any desired combination of features described herein can be resorted to without departing from the scope of the invention as those skilled in the art readily understand and appreciate.
Claims (9)
1. A pneumatic valve for powder or particulate material, the pneumatic valve comprising:
the two rubber tube fixing plates are arranged in parallel at a certain distance, each rubber tube fixing plate is provided with rubber tube perforations, and the rubber tube perforations on the two rubber tube fixing plates are correspondingly arranged;
the two switch plates can be relatively and slidably attached together, the two switch plates are arranged between the two rubber tube fixing plates in parallel, the rubber tube perforation is arranged on each switch plate, and the rubber tube perforation on the switch plate corresponds to the rubber tube perforation on the rubber tube fixing plate;
the rubber tube capable of generating elastic deformation is penetrated in the corresponding rubber tube perforation, and two ends of the rubber tube are respectively in sealing contact with the corresponding rubber tube fixing plate; and
the valve cylinder comprises a first valve cylinder and a second valve cylinder; the first valve cylinder is connected with one end of a first switch plate and can drive the first switch plate to move along a first direction perpendicular to the axial direction of the rubber tube; the second valve cylinder is connected with one end of a second switch plate and can drive the second switch plate to move along a second direction opposite to the first direction; the distance of the first switch plate moving along the first direction and the distance of the second switch plate moving along the second direction are equal to the radius of the rubber tube, so that the rubber tube is elastically deformed and closed under the action of the shearing force of the two switch plates.
2. The pneumatic valve for powder or granular material of claim 1 wherein both hose retaining plates are rectangular plates arranged horizontally; the pneumatic valve is also provided with two switch fixing plates which are respectively and vertically arranged on two opposite sides between the two rubber tube fixing plates; the first rubber tube fixing plate is connected with the upper end face of the switch fixing plate, and the second rubber tube fixing plate is connected with the lower end face of the switch fixing plate; the switch fixing plates are provided with guide grooves extending horizontally and linearly on one sides towards the switch plates, and the edges of two sides of the two switch plates are embedded into the guide grooves on the corresponding sides and can slide in the guide grooves; one side of the two rubber tube fixing plates, on which the switch fixing plates are not arranged, is provided with an air cylinder packaging shell, and the valve air cylinder is arranged in the air cylinder packaging shell.
3. The pneumatic valve for powder or granular material of claim 2 wherein one end of the first switch plate extends into the cylinder housing to connect with the first valve cylinder; one end of the second switch plate extends into the cylinder packaging shell and is connected with the second valve cylinder; and a sealing plate is arranged on one side, opposite to the cylinder packaging shell, between the two rubber tube fixing plates, so that a closed space is formed between the two rubber tube fixing plates and in the cylinder packaging shell.
4. The pneumatic valve for powder or granular material of claim 2, wherein the side of the pneumatic valve is provided with a mounting fixture, the mounting fixture is a plate member, and the mounting fixture is respectively disposed on two sides of the switch fixing plate and is connected with the corresponding switch fixing plate.
5. A pneumatic valve for powder or granular material as claimed in claim 1 wherein the two switch plates are located midway between the two hose retaining plates.
6. A pneumatic valve for powder or particulate material as claimed in claim 1 wherein the rubber tube is provided at both ends with radially outwardly projecting annular flanges, both ends of the rubber tube extending outwardly of the respective tube retaining plates, the annular flanges respectively abutting against the respective tube retaining plates to form a sealing contact.
7. A metering and dispensing assembly for powder or particulate material, the metering and dispensing assembly comprising a metering container and a pneumatic valve as claimed in any one of claims 1 to 6; the metering container is provided with a metering through hole which is communicated up and down; the pneumatic valve is arranged close to the bottom of the metering container and controls the opening and closing of the downward conduction path of the metering through hole.
8. The metering and dispensing assembly for powder or granular material of claim 7 wherein the metering container is planar and the number and location of the hose perforations corresponds to the number and location of the metering through holes.
9. The metering and dispensing assembly for powder or granular material of claim 8 wherein the inner diameter of the gum tube is not less than the inner diameter of the metering through bore; the metering container is fixedly connected to one of the rubber tube fixing plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710056243.0A CN106704630B (en) | 2017-01-25 | 2017-01-25 | Pneumatic valve for powder or granular materials and metering and split charging assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710056243.0A CN106704630B (en) | 2017-01-25 | 2017-01-25 | Pneumatic valve for powder or granular materials and metering and split charging assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106704630A CN106704630A (en) | 2017-05-24 |
| CN106704630B true CN106704630B (en) | 2023-08-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710056243.0A Active CN106704630B (en) | 2017-01-25 | 2017-01-25 | Pneumatic valve for powder or granular materials and metering and split charging assembly |
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| Country | Link |
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| CN (1) | CN106704630B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202974059U (en) * | 2012-09-03 | 2013-06-05 | 赖建新 | Quantitative gunpowder charging machine for fireworks disc inner cylinder |
| CN203364666U (en) * | 2013-05-27 | 2013-12-25 | 株洲南方航鑫机械装备有限责任公司 | Manufacturing equipment for firework display shell bright beads |
| CN205860883U (en) * | 2016-06-24 | 2017-01-04 | 湖南千山制药机械股份有限公司 | A kind of propellant powder filling machine |
| CN206530733U (en) * | 2017-01-25 | 2017-09-29 | 北京惠众智通机器人科技股份有限公司 | For powder or the operated pneumatic valve and metering, distributing, packaging component of granule materials |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1130345A (en) * | 1997-07-09 | 1999-02-02 | Taisei Corp | Powder and grain carrying device |
-
2017
- 2017-01-25 CN CN201710056243.0A patent/CN106704630B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202974059U (en) * | 2012-09-03 | 2013-06-05 | 赖建新 | Quantitative gunpowder charging machine for fireworks disc inner cylinder |
| CN203364666U (en) * | 2013-05-27 | 2013-12-25 | 株洲南方航鑫机械装备有限责任公司 | Manufacturing equipment for firework display shell bright beads |
| CN205860883U (en) * | 2016-06-24 | 2017-01-04 | 湖南千山制药机械股份有限公司 | A kind of propellant powder filling machine |
| CN206530733U (en) * | 2017-01-25 | 2017-09-29 | 北京惠众智通机器人科技股份有限公司 | For powder or the operated pneumatic valve and metering, distributing, packaging component of granule materials |
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| CN106704630A (en) | 2017-05-24 |
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