CN106742111A - A kind of taper discharging powder packing machine and discharging method - Google Patents
A kind of taper discharging powder packing machine and discharging method Download PDFInfo
- Publication number
- CN106742111A CN106742111A CN201710015367.4A CN201710015367A CN106742111A CN 106742111 A CN106742111 A CN 106742111A CN 201710015367 A CN201710015367 A CN 201710015367A CN 106742111 A CN106742111 A CN 106742111A
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- Prior art keywords
- pulvis
- passage
- material bag
- bullet
- platform
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B1/00—Packaging fluent solid material, e.g. powders, granular or loose fibrous material, loose masses of small articles, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
- B65B1/04—Methods of, or means for, filling the material into the containers or receptacles
- B65B1/10—Methods of, or means for, filling the material into the containers or receptacles by rotary feeders
- B65B1/12—Methods of, or means for, filling the material into the containers or receptacles by rotary feeders of screw type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B1/00—Packaging fluent solid material, e.g. powders, granular or loose fibrous material, loose masses of small articles, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
- B65B1/28—Controlling escape of air or dust from containers or receptacles during filling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B1/00—Packaging fluent solid material, e.g. powders, granular or loose fibrous material, loose masses of small articles, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
- B65B1/30—Devices or methods for controlling or determining the quantity or quality or the material fed or filled
- B65B1/32—Devices or methods for controlling or determining the quantity or quality or the material fed or filled by weighing
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Quality & Reliability (AREA)
- Basic Packing Technique (AREA)
Abstract
The invention discloses a kind of taper discharging powder packing machine and discharging method, the packing machine includes pulvis passage and Weighing mechanism, pulvis passage is vertically fixed on a platform, rotary shaft is provided with pulvis passage, spiral feeding blade is fixed with rotary shaft, the Weighing mechanism is fixed on a lifting platform, one lifting control mechanism is arranged on platform and controls lifting platform axially to be lifted along pulvis passage, bullet is connected with the rotary shaft front end, the large awl end of bullet is stretched out on the outside of the pulvis passage port of export with diameter greater than pulvis guide pipe diameter, gap is left between the annulus conical surface and the pulvis passage port of export of bullet and forms discharging gap；This invention simplifies powder agent packing machine discharge mechanism is simplified, eliminate pulvis and flown out from packaging opening, pollute environment, have a strong impact on the healthy of operator, and the inaccurate problem that causes to weigh appearance.
Description
Technical field
The present invention relates to plant equipment, more particularly to a kind of taper discharging powder packing machine and discharging method.
Background technology
Powder packing machine in fields such as chemical industry, food, feeds widely.It uses Automated condtrol, therefore with certainly
It is dynamic weigh, the function such as filling automatically.
Horizontal screw feed powder packing machine is a kind of common packing machine.Horizontal spiral in actual use
Feeding powder packing machine, due to there is certain drop between the bottom of packing material pocket and filling exit（That is the length of material bag）.
Air when pulvis during filling drops to material bag from filling exit in packing bag for pressed, air can be by portion in packaging bag
Divide pulvis to spray upwards, cause pulvis to be flown out from the opening of folder bag mouthful or equipment, pollute environment, have a strong impact on operator's
It is healthy, and it is inaccurate to cause to weigh.
In order to solve the above problems, rectilinear screw feed mode is all used mostly now.But in vertical spin feeding
Bin gate at the blowing opening of mechanism is typically all the form such as turnover door and spiral press-in.The blowing mode of both forms all must
Must there are the turnover door mechanism of complexity and the helical blade of complexity to support, bring that complex structure, fault rate be high and maintenance cost
Problem high.
The content of the invention
The purpose of the present invention is to propose to a kind of taper discharging powder packing machine and discharging method, simplify powder agent packing machine and put
Material mechanism, eliminates pulvis and is flown out from packaging opening, pollutes environment, has a strong impact on the healthy of operator and cause
The appearance of inaccurate problem of weighing.
To achieve these goals, the technical scheme is that：
A kind of taper discharging powder packing machine, including pulvis passage and Weighing mechanism, pulvis passage are vertically fixed on one
On platform, rotary shaft is provided with pulvis passage, spiral feeding blade, a transmission mechanism connection rotation are fixed with rotary shaft
Rotating shaft drives spiral feeding blade to rotate, and Weighing mechanism is provided with material bag clamping device, and material bag clamping device is used for thing
Pocket muzzle lives the outlet of pulvis passage；Wherein, the Weighing mechanism is fixed on a lifting platform, a lifting control mechanism
It is arranged on platform and controls lifting platform axially to be lifted along pulvis passage, the lifting platform is fixedly connected with a bin gate sleeve,
Bin gate sleeve is enclosed within pulvis passage, and bullet, the large awl end diameter of bullet are connected with the rotary shaft front end
Stretched out on the outside of the pulvis passage port of export more than pulvis guide pipe diameter, the annulus conical surface and the pulvis passage of bullet are exported
Gap is left between end and forms discharging gap, when discharging is stopped, the lifting platform drives bin gate sleeve along pulvis passage axle
To the gap plugging until the annulus conical surface of near bullet will discharge is declined, a packaging controller connection controls the driver
Structure and the lifting control mechanism.
Scheme is further：The lifting platform is set around pulvis passage, at least in pulvis passage on the platform
Relative both sides are respectively arranged with guide post, and the lifting platform set on the guide bar, is guided along pulvis passage axle by guide post
To lifting.
Scheme is further：The guide post is threaded rod, and the lifting platform passes through nut sleeve on the guide bar, the liter
Drop controlling organization drives threaded rod to rotate and then realizes that lifting platform is axially lifted along pulvis passage by motor.
Scheme is further：Scraper plate, screed front end and taper are provided with the pulvis passage port of export madial wall
Body annulus taper-face contact is used for the pulvis saprolite cleared up on the bullet annulus conical surface.
Scheme is further：The bullet annulus conical surface is provided with longitudinal oblique groove side by side, and the pulvis is with cone
Body rotation is dished out into material bag along longitudinal oblique groove, has been radially arranged ring groove along the bullet annulus conical surface, institute
State bin gate sleeve and drop to and will discharge in ring groove gap plugging.
Scheme is further：Lifting platform displacement transducer is provided between the lifting platform and platform, is used to measure powder
Agent filling height, displacement sensor signal is connected to the packaging controller.
Scheme is further：The taper angle of the bullet is 90 degree to 120 degree.
A kind of discharging method of the powder packing machine that discharged based on taper, the packing machine includes pulvis passage and weigher
Structure, pulvis passage is vertically fixed on a platform, and rotary shaft is provided with pulvis passage, and spiral is fixed with rotary shaft
Feeding blade, a transmission mechanism connection rotary shaft drives spiral feeding blade to rotate, and Weighing mechanism is provided with material bag clamping
Device, material bag clamping device is used to for material bag muzzle to live the outlet of pulvis passage；The Weighing mechanism is fixed on one and rises
On drop platform, a lifting control mechanism is arranged on platform and controls lifting platform axially to be lifted along pulvis passage, the lifting platform
A bin gate sleeve is fixedly connected with, bin gate sleeve is enclosed within pulvis passage, cone is connected with the rotary shaft front end
Body, the large awl end of bullet is stretched out on the outside of the pulvis passage port of export with diameter greater than pulvis guide pipe diameter, bullet
Gap is left between the annulus conical surface and the pulvis passage port of export and forms discharging gap, when discharging is stopped, the lifting platform band
Dynamic bin gate sleeve axially declines until the annulus conical surface of near bullet will discharge gap plugging, a packaging along pulvis passage
Controller connection the control transmission mechanism and the lifting control mechanism, are provided with lifting between the lifting platform and platform
Platform displacement transducer, is used to measure pulvis filling height, and displacement sensor signal is connected to the packaging controller；
Methods described is：Material bag is entangled the outlet of pulvis passage by material bag clamping device, one material bag aperture of input and
Pulvis bulk density, a material bag weight of weighing is formed according to the material bag aperture and pulvis bulk density of input
Measure with pulvis in the medium-altitude relational expression of material bag, wherein, methods described is further：
The first step：The threshold value of pulvis surface distance in one pulvis passage outlet of setting and material bag, by the pulvis guide
Pipe falls in export to material bag inner bottom part, while opening discharging gap, starts spiral feeding blade rotation and starts to load in pulvis
Material bag；
Second step：Height of the pulvis in material bag is determined according to the relational expression, the pulvis according to the adjusting thresholds is led
Expects pipe is exported and pulvis surface distance in material bag；
3rd step：Second step is repeated until weight reaches setting value pack and terminates.
Scheme is further：Sensor of dust concentration is provided with the material bag clamping device, in the packaging control
In device processed set a dust concentration threshold value, pulvis load material bag during, by obtain dust concentration with it is described
The comparing of dust concentration threshold value, adjusts the pulvis passage outlet and is sent with the threshold value and spiral of pulvis surface distance in material bag
Expect the rotary speed of blade.
Scheme is further：The taper angle of the bullet is 90 degree to 120 degree, in the pulvis passage port of export
Scraper plate is provided with the wall of side, screed front end is residual with the pulvis that bullet annulus taper-face contact is used to clear up on the bullet annulus conical surface
Product thing.
The beneficial effects of the invention are as follows：Simplified powder agent packing machine discharge mechanism is simplified, pulvis is eliminated and is opened from packaging
Fly out, pollute environment, have a strong impact on the healthy of operator and cause to weigh the appearance of inaccurate problem at mouthful.
Invention is described in detail with reference to the accompanying drawings and examples.
Brief description of the drawings
Fig. 1 is original state structural representation of the present invention；
Fig. 2 is the initial status architecture schematic diagram that feeds intake of the present invention；
Fig. 3 feeds intake done state structural representation for the present invention.
Specific embodiment
Embodiment 1：
A kind of taper discharging powder packing machine, as shown in Figure 1, Figure 2, Figure 3 shows, the packing machine includes pulvis passage 1 and weighs
Mechanism 2, pulvis passage is vertically fixed on a platform 3, and rotary shaft 4 is provided with pulvis passage, fixed in rotary shaft
There is spiral feeding blade 5, a transmission mechanism connects rotary shaft and drives screw feeding leaf by motor 6, belt 7 and belt pulley 8
Piece is rotated, and Weighing mechanism is provided with material bag clamping device 9, and material bag clamping device is led for material sack 10 to be entangled into pulvis
Expects pipe is exported；Wherein, the Weighing mechanism is fastened on a lifting platform 12 by cantilever 11, a lifting control mechanism
13 are arranged on control lifting platform on platform axially lifts along pulvis passage, and the lifting platform is fixedly connected with a bin gate sleeve
14, bin gate sleeve is enclosed within pulvis passage, and bullet 15, the large awl end of bullet are connected with the rotary shaft front end
Stretched out on the outside of the pulvis passage port of export with diameter greater than pulvis guide pipe diameter, the annulus conical surface and the pulvis passage of bullet
Gap is left between the port of export and forms discharging gap 16, circular cone can be uniform to the expansion of material bag surrounding by material pulvis
Dissipate.When discharging is stopped, that is, during original state shown in Fig. 1 and Fig. 3 and at the end of feeding intake, the lifting platform drives bin gate
Sleeve axially declines until the annulus conical surface of near bullet will discharge gap plugging, a packaging controller along pulvis passage
（It is not drawn into）Connection the control transmission mechanism and the lifting control mechanism.
For lifting of lifting table stabilization, the lifting platform sets around pulvis passage, at least exists on the platform
The relative both sides of pulvis passage are respectively arranged with guide post 17, in the present embodiment：On the platform around pulvis passage
Three guide posts 17 are evenly arranged with isosceles triangle, the lifting platform set on the guide bar, is guided along pulvis by guide post
Passage is axially lifted.
Wherein：There are various lifting of lifting table frame modes, for example：Guide post is a polished rod, and lifting control mechanism passes through
Suspension hook control lifting platform is lifted on polished rod, and used as the present embodiment, the guide post is threaded screw rod bar, and the lifting platform passes through
On the guide bar, the lifting control mechanism drives screw thread to 18 sets of the nut set in lifting platform by motor and odontoid belt 19
Bar is rotated and then realizes that lifting platform is axially lifted along pulvis passage.
In embodiment：Scraper plate 20, screed front end and bullet are provided with the pulvis passage port of export madial wall
Annulus taper-face contact is used for the pulvis saprolite cleared up on the bullet annulus conical surface, remains the pulvis of cone surface of closing the door not
Accumulation is not lumpd, it is ensured that the accuracy of feeding.Wherein：In order to uniformly throw away pulvis, the bullet annulus conical surface sets
A plurality of longitudinal oblique groove side by side is equipped with, between 0.5 to 1mm, the pulvis rotates along vertical the depth of groove with bullet
Dished out into material bag to oblique groove, ring groove has been radially arranged along the bullet annulus conical surface, under the bin gate sleeve
It is down to the discharging gap plugging with longitudinal oblique groove in ring groove.
In order to accurately control the lifting of lifting platform：Lifting platform displacement sensing is provided between the lifting platform and platform
Device, is used to measure pulvis filling height, and displacement sensor signal is connected to the packaging controller, and sensor can be with light sensation inductive sensing
Device or magnetic scale sensor are set on the guide bar.
In embodiment：The taper angle a of the bullet is controlled at 90 degree to 120 degree.
Embodiment 2：
The present embodiment is a kind of discharging method of the powder packing machine that discharged based on the taper of embodiment 1, and the content of embodiment 1 also should be
Content in the present embodiment, therefore, the packing machine includes pulvis passage and Weighing mechanism, and pulvis passage is vertically fixed on
On one platform, rotary shaft is provided with pulvis passage, spiral feeding blade is fixed with rotary shaft, a transmission mechanism connects
Connecing rotary shaft drives spiral feeding blade to rotate, and Weighing mechanism is provided with material bag clamping device, and material bag clamping device is used for
Material bag muzzle is lived into the outlet of pulvis passage；The Weighing mechanism is fixed on a lifting platform, a lifting control mechanism
It is arranged on platform and controls lifting platform axially to be lifted along pulvis passage, the lifting platform is fixedly connected with a bin gate sleeve,
Bin gate sleeve is enclosed within pulvis passage, and bullet, the large awl end diameter of bullet are connected with the rotary shaft front end
Stretched out on the outside of the pulvis passage port of export more than pulvis guide pipe diameter, the annulus conical surface and the pulvis passage of bullet are exported
Gap is left between end and forms discharging gap, when discharging is stopped, the lifting platform drives bin gate sleeve along pulvis passage axle
To the gap plugging until the annulus conical surface of near bullet will discharge is declined, a packaging controller connection controls the driver
Structure and the lifting control mechanism, are provided with lifting platform displacement transducer between the lifting platform and platform, are used to measure powder
Agent filling height, displacement sensor signal is connected to the packaging controller, and described packaging controller includes microprocessor, with
And around the input/output unit of microprocessor, and interface.
Methods described is：Material bag is entangled the outlet of pulvis passage by material bag clamping device, is input into packaging controller
One material bag aperture and pulvis bulk density, material bag aperture and pulvis bulk density of the controller according to input
And weigh material bag weight and a pulvis are formed in the medium-altitude relational expression of material bag, for example：H=w/s, h are height, and w is weight
Amount, s is the cross-sectional area of material bag；Wherein, methods described is further：
The first step：By input unit, one pulvis passage of setting is exported and pulvis in material bag in packaging controller first
The threshold value of surface distance, threshold value for example can be 5cm, and the pulvis passage is fallen in export to material bag inner bottom part, while
Discharging gap is opened, is started spiral feeding blade rotation and is started for pulvis to load material bag；
Second step：Height of the pulvis in material bag is determined according to the relational expression, the pulvis according to the adjusting thresholds is led
Expects pipe is exported and pulvis surface distance in material bag；
3rd step：Second step is repeated until weight reaches setting value pack and terminates.
This action equivalent to：Material bag bottom is lifted approximately storage bin hopper by lifting control mechanism during filling
The discharge outlet of passage, now reduces the drop of material and material bag, and controlling organization is slowly transported downwards with material-filling
It is dynamic, the drop between drain hole and material is remained, control the splashing of pulvis.
In order to good control dust, methods described is further included：Powder is provided with the material bag clamping device
Dust concentration sensor, sets a dust concentration threshold value in the packaging controller, during pulvis loads material bag,
By the dust concentration for obtaining and the comparing of the dust concentration threshold value, the pulvis passage outlet and powder in material bag are adjusted
The threshold value of agent surface distance and the rotary speed of spiral feeding blade.For example：When the dust concentration for obtaining is dense higher than the dust
During degree threshold value, the threshold value of the pulvis passage outlet and pulvis surface distance in material bag is reduced, or reduce screw feeding
The rotary speed of blade, or the two adjustment simultaneously；When the dust concentration for obtaining is less than the dust concentration threshold value, spiral shell is improved
The rotary speed of feeding blade is revolved, accelerates condiment speed.
In embodiment：The taper angle a of the bullet is 90 degree to 120 degree, on the inside of the pulvis passage port of export
Scraper plate is provided with wall, screed front end remains with bullet annulus taper-face contact for clearing up the pulvis on the bullet annulus conical surface
Thing.
Claims (10)
1. a kind of taper discharging powder packing machine, including pulvis passage and Weighing mechanism, pulvis passage are vertically fixed on one
On individual platform, rotary shaft is provided with pulvis passage, spiral feeding blade, a transmission mechanism connection are fixed with rotary shaft
Rotary shaft drives spiral feeding blade to rotate, and Weighing mechanism is provided with material bag clamping device, and material bag clamping device is used for will
Material bag muzzle lives the outlet of pulvis passage；Characterized in that, the Weighing mechanism is fixed on a lifting platform, a lifting
Controlling organization is arranged on platform and controls lifting platform axially to be lifted along pulvis passage, and the lifting platform is fixedly connected with a material
Door pocket cylinder, bin gate sleeve is enclosed within pulvis passage, and bullet, the auger of bullet are connected with the rotary shaft front end
End is stretched out on the outside of the pulvis passage port of export with diameter greater than pulvis guide pipe diameter, the annulus conical surface and the pulvis guide of bullet
Gap is left between the pipe port of export and forms discharging gap, when discharging is stopped, the lifting platform drives bin gate sleeve to be led along pulvis
Expects pipe axially declines the gap plugging until the annulus conical surface of near bullet will discharge, and a packaging controller connection control is described
Transmission mechanism and the lifting control mechanism.
2. packing machine according to claim 1, it is characterised in that the lifting platform is set around pulvis passage, described
Guide post at least is respectively arranged with the relative both sides of pulvis passage on platform, the lifting platform is covered on the guide bar, by leading
Axially lifted along pulvis passage to bar guiding.
3. packing machine according to claim 2, it is characterised in that the guide post is threaded rod, and the lifting platform passes through
On the guide bar, the lifting control mechanism drives threaded rod to rotate and then realize that lifting platform is led along pulvis to nut sleeve by motor
Expects pipe is axially lifted.
4. packing machine according to claim 1, it is characterised in that set on the pulvis passage port of export madial wall
There is scraper plate, screed front end and bullet annulus taper-face contact are used for the pulvis saprolite cleared up on the bullet annulus conical surface.
5. packing machine according to claim 1, it is characterised in that the bullet annulus conical surface is provided with longitudinal direction side by side
Oblique groove, the pulvis is dished out into material bag with bullet rotation along longitudinal oblique groove, along the bullet annulus conical surface
Ring groove has been radially arranged it, the bin gate sleeve drops to and will discharge in ring groove gap plugging.
6. packing machine according to claim 1, it is characterised in that be provided with lifting platform between the lifting platform and platform
Displacement transducer, is used to measure pulvis filling height, and displacement sensor signal is connected to the packaging controller.
7. according to the packing machine that one of claim 1 to 6 is described, it is characterised in that the taper angle of the bullet be 90 degree extremely
120 degree.
8. it is a kind of based on taper discharge powder packing machine discharging method, the packing machine include pulvis passage and weigher
Structure, pulvis passage is vertically fixed on a platform, and rotary shaft is provided with pulvis passage, and spiral is fixed with rotary shaft
Feeding blade, a transmission mechanism connection rotary shaft drives spiral feeding blade to rotate, and Weighing mechanism is provided with material bag clamping
Device, material bag clamping device is used to for material bag muzzle to live the outlet of pulvis passage；The Weighing mechanism is fixed on one and rises
On drop platform, a lifting control mechanism is arranged on platform and controls lifting platform axially to be lifted along pulvis passage, the lifting platform
A bin gate sleeve is fixedly connected with, bin gate sleeve is enclosed within pulvis passage, cone is connected with the rotary shaft front end
Body, the large awl end of bullet is stretched out on the outside of the pulvis passage port of export with diameter greater than pulvis guide pipe diameter, bullet
Gap is left between the annulus conical surface and the pulvis passage port of export and forms discharging gap, when discharging is stopped, the lifting platform band
Dynamic bin gate sleeve axially declines until the annulus conical surface of near bullet will discharge gap plugging, a packaging along pulvis passage
Controller connection the control transmission mechanism and the lifting control mechanism, are provided with lifting between the lifting platform and platform
Platform displacement transducer, is used to measure pulvis filling height, and displacement sensor signal is connected to the packaging controller；
Methods described is：Material bag is entangled the outlet of pulvis passage by material bag clamping device, one material bag aperture of input and
Pulvis bulk density, a material bag weight of weighing is formed according to the material bag aperture and pulvis bulk density of input
Amount is with pulvis in the medium-altitude relational expression of material bag, it is characterised in that methods described is further：
The first step：The threshold value of pulvis surface distance in one pulvis passage outlet of setting and material bag, by the pulvis guide
Pipe falls in export to material bag inner bottom part, while opening discharging gap, starts spiral feeding blade rotation and starts to load in pulvis
Material bag；
Second step：Height of the pulvis in material bag is determined according to the relational expression, the pulvis according to the adjusting thresholds is led
Expects pipe is exported and pulvis surface distance in material bag；
3rd step：Second step is repeated until weight reaches setting value pack and terminates.
9. method according to claim 8, it is characterised in that methods described is further included, in material bag clamping
Sensor of dust concentration is provided with device, a dust concentration threshold value is set in the packaging controller, loaded in pulvis
During material bag, by the dust concentration and the comparing of the dust concentration threshold value that obtain, the pulvis passage is adjusted
The threshold value and the rotary speed of spiral feeding blade of pulvis surface distance in outlet and material bag.
10. method according to claim 8 or claim 9, it is characterised in that the taper angle of the bullet is 90 degree to 120 degree,
Scraper plate is provided with the pulvis passage port of export madial wall, screed front end is used to clear up with bullet annulus taper-face contact
Pulvis saprolite on the bullet annulus conical surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710015367.4A CN106742111B (en) | 2017-01-10 | 2017-01-10 | Conical discharging powder packaging machine and discharging method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710015367.4A CN106742111B (en) | 2017-01-10 | 2017-01-10 | Conical discharging powder packaging machine and discharging method |
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| CN106742111A true CN106742111A (en) | 2017-05-31 |
| CN106742111B CN106742111B (en) | 2023-03-14 |
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| CN110092016A (en) * | 2019-03-25 | 2019-08-06 | 苏州文得昌包装设备科技有限公司 | A kind of pack sealing integration apparatus |
| CN110724950A (en) * | 2019-11-15 | 2020-01-24 | 襄阳航林机械有限公司 | Low-pressure cold spraying repair device for aluminum alloy shell and application method of low-pressure cold spraying repair device |
| CN111846305A (en) * | 2019-04-30 | 2020-10-30 | 哈尔滨博实自动化股份有限公司 | Intelligent vertical spiral bagging device and control method |
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| CN112706961A (en) * | 2020-12-15 | 2021-04-27 | 蚌埠市万科硅材料科技有限公司 | Negative pressure vacuum packaging machine for packaging high-quality white carbon black |
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