CN104925524B - A kind of feed opening negative pressure device produced for organosilicon - Google Patents
A kind of feed opening negative pressure device produced for organosilicon Download PDFInfo
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- CN104925524B CN104925524B CN201510311861.6A CN201510311861A CN104925524B CN 104925524 B CN104925524 B CN 104925524B CN 201510311861 A CN201510311861 A CN 201510311861A CN 104925524 B CN104925524 B CN 104925524B
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- 230000005540 biological transmission Effects 0.000 claims abstract description 53
- 230000007246 mechanism Effects 0.000 claims abstract description 22
- 238000009434 installation Methods 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 238000010030 laminating Methods 0.000 claims description 3
- 238000010079 rubber tapping Methods 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 21
- 239000002210 silicon-based material Substances 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 230000000284 resting effect Effects 0.000 abstract description 2
- 238000004806 packaging method and process Methods 0.000 description 12
- 238000005538 encapsulation Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
A kind of feed opening negative pressure device produced for organosilicon, it is related to organosilicon production equipment field, including discharge pipe, power transmission shaft and negative pressure mechanism, the negative pressure mechanism is arranged on the bottom of discharge pipe, the power transmission shaft is connected through discharge pipe by countershaft of holding one's breath with negative pressure mechanism, the device sets negative pressure mechanism, it is driven by power transmission shaft in discharge pipe, drive countershaft motion of holding one's breath, so as to drive plate of holding one's breath to be rolled tiltedly to a certain, hold one's breath between plate for open or closure space, so as to realize during whole organosilicon production material is encapsulated, material is packed, gas is reduced or avoided and enters hermetic bag, amount and the resting period of material that organic silicon materials of raising hermetic bag are held.
Description
Technical field：
The present invention relates to organosilicon production equipment field, more particularly to a kind of feed opening negative pressure dress produced for organosilicon
Put.
Background technology：
In organic silicon production process, charging encapsulation is one of critically important process, and traditional charger is produced in organosilicon
In charging process, load large quantity of air therewith as organic silicon materials enter in bag, material bag, cause material bag space waste compared with
It is many, simultaneously because air is more in material bag, cause material not preserve for a long time, occur deliquescence or other chemical reactions, shadow
Ring the storage of material and the quality of material.
The content of the invention：
The technical problems to be solved by the invention are to be used for the feed opening negative pressure device that organosilicon is produced there is provided a kind of,
The device sets negative pressure mechanism, and multiple plates of holding one's breath of the negative pressure mechanism are movably connected in the outer of core of holding one's breath by countershaft of holding one's breath
Side, when plate holding level of holding one's breath is motionless, multiple plates of holding one's breath constitute sealing space, by discharge pipe sealed bottom, it is to avoid gas enters
Enter, when plate of holding one's breath is simultaneously oblique to a certain inclination, the sealing space of multiple plates compositions of holding one's breath is now open mode, and material is now
Discharged by the gap between plate of holding one's breath, into packaging bag, because the neck at the top of packaging bag with circle of holding one's breath is tightly connected, so that
Completely cut off the entrance of gas again, when solving the organic silicon materials of conventional package, gas enters more, causes packaging bag internal gas
It is more, packaging bag volume is taken, less organic silicon materials encapsulation, the waste of packaging bag inner space, packaging bag internal gas is caused
Deliquescence and gas easily chemically react with organic silicon materials, the problem of influenceing organosilicon quality of material.
The technical problems to be solved by the invention are realized using following technical scheme：
A kind of feed opening negative pressure device produced for organosilicon, including discharge pipe, power transmission shaft and negative pressure mechanism, it is described
Negative pressure mechanism is arranged on the bottom of discharge pipe, and the power transmission shaft is connected through discharge pipe by countershaft of holding one's breath with negative pressure mechanism
Connect, it is characterised in that：
The power transmission shaft bottom end side wall sets multiple ellipticity transmission shaft through-holes through transmission shaft body, and power transmission shaft is passed through
The top of discharge pipe, by extending to discharge pipe bottom inside discharge pipe；
The negative pressure mechanism by circle of holding one's breath, plate of holding one's breath, plate briquetting of holding one's breath, hold one's breath countershaft and core of holding one's breath is constituted, plate of holding one's breath, close
Gas plate briquetting, hold one's breath core and countershaft of holding one's breath is separately positioned on the inside of circle of holding one's breath, the plate of holding one's breath is by countershaft of holding one's breath with holding one's breath
Core is connected, and the plate briquetting of holding one's breath is fixedly connected by countershaft of holding one's breath with plate of holding one's breath；
The circle of holding one's breath sets multiple bottoms for passing through the connection through hole of itself, discharge pipe being fixed on by screw sealing
Portion, it is to avoid circle enters discharge pipe by holding one's breath；
The circle bottom of holding one's breath also sets up connection neck, and by connecting, neck is convenient to be tightly connected with material bag, it is to avoid empty
Gas largely enters material web and discharge pipe.
The plate of holding one's breath is sector structure, and plate side center of holding one's breath is set through the plate through hole of holding one's breath of plate in itself of holding one's breath,
Plate through hole two ends of holding one's breath set board slot of holding one's breath respectively, and board slot of holding one's breath sets multiple connecting screw holes；
The plate briquetting of holding one's breath is arch bridge-like structure, and side sets groove, and groove both sides set multiple connecting screw holes, held one's breath
Groove laminating corresponding with the board slot of holding one's breath for plate of holding one's breath on plate briquetting, fixation is screwed by bolt；
The plate briquetting two of holding one's breath is one group, and plate of each holding one's breath is correspondingly arranged one group of plate briquetting of holding one's breath；
The countershaft of holding one's breath is plain shaft structure, and one end is plane, and the other end sets double wedge；
The double wedge is protrusion sector structure.
The plate of holding one's breath sets multiple, and plate of holding one's breath is fixedly mounted on the plane one end for countershaft of holding one's breath by plate briquetting of holding one's breath；
The countershaft of holding one's breath sets multiple, and plate of each holding one's breath is fixedly connected on a pair of holding one's breath by one group of plate briquetting of holding one's breath
One end of axle；
The core of holding one's breath is cylindrical-shaped structure, and the center of circle is set through hold one's breath the core through hole of holding one's breath of core in itself, power transmission shaft bottom
Through core through hole of holding one's breath, the core side wall of holding one's breath sets multiple through the lateral through aperture of core in itself of holding one's breath, and passes through countershaft band of holding one's breath
One end of axle tooth is flexibly connected through lateral through aperture with transmission shaft through-hole.
Present invention additionally comprises a kind of installation of feed opening negative pressure device produced for organosilicon and application method, its feature
It is following steps：
1) power transmission shaft is passed through inside discharge pipe, and one end of V belt translation shaft through-hole is arranged on the bottom of discharge pipe；
2) by screw will hold one's breath circle sealing be fixed on tapping channel bottom；
3) core that will hold one's breath loads circle inside of holding one's breath, and core through hole ring set of holding one's breath is in the outside of power transmission shaft, core lateral through aperture of holding one's breath
Just to transmission shaft through-hole, through-hole passage is constituted；
4) it is fixedly mounted and holds one's breath the one end of countershaft with plane by plate briquetting of the holding one's breath plate that will hold one's breath, is screwed by bolt solid
Fixed, the installation method of multiple plates of holding one's breath is identical；
5) one end of countershaft with double wedge is held one's breath through the lateral through aperture for core of holding one's breath, and insertion transmission shaft through-hole is logical with core of holding one's breath
Transmission shaft through-hole in hole is flexibly connected, and holds one's breath the less one end of plate internal diameter and the outer wall for core of holding one's breath is brought into close contact, wherein, each
It is driven shaft through-hole and connects a countershaft double wedge of holding one's breath, the installation direction of the double wedge of multiple countershafts of holding one's breath is consistent；
6) it is driven by power transmission shaft in discharge pipe, hold one's breath countershaft motion, pair of holding one's breath inside driving transmission shaft through-hole
Leftward or rightward extruding force is influenceed when axle is rotated by power transmission shaft, hold one's breath countershaft double wedge therewith to the left or to the right with power transmission shaft
Through-hole wall is fitted, so as to drive plate of holding one's breath to be rolled to a certain tiltedly, because multiple installation directions for holding one's breath countershaft double wedge are consistent
, therefore multiple plates of holding one's breath are also consistent to direction of a certain inclination when oblique, and after plate of holding one's breath is oblique to a certain inclination, plate of holding one's breath
Between for open or closure space so that realize whole organosilicon production material encapsulate during, to material carry out
Pack, gas is reduced or avoided and enters hermetic bag, improve depositing for amount that organic silicon materials of hermetic bag hold and material
Put the time.
Beneficial effects of the present invention are that, there is provided a kind of feed opening negative pressure device produced for organosilicon, the device is set
Negative pressure mechanism, multiple plates of holding one's breath of the negative pressure mechanism are movably connected in the outside for core of holding one's breath by countershaft of holding one's breath, and plate of holding one's breath is protected
When water holding puts down motionless, multiple plates of holding one's breath constitute sealing space, by discharge pipe sealed bottom, it is to avoid gas enters, when plate of holding one's breath
Simultaneously to it is a certain roll oblique when, the sealing space of multiple plates compositions of holding one's breath is now open mode, and material now passes through plate of holding one's breath
Between gap discharging, into packaging bag, due to being tightly connected at the top of packaging bag with the neck of circle of holding one's breath, so as to completely cut off gas again
The entrance of body, when solving the organic silicon materials of conventional package, gas enters more, causes packaging bag internal gas more, takes
Packaging bag volume, causes less organic silicon materials encapsulation, the waste of packaging bag inner space, packaging bag internal gas deliquescence and gas
Body easily chemically reacts with organic silicon materials, the problem of influenceing organosilicon quality of material.
Brief description of the drawings：
Fig. 1 is the structural side view of plate closing state of the invention of holding one's breath.
Fig. 2 is the structure sectional view of plate closing state of the invention of holding one's breath.
Fig. 3 is the structure upward view of plate closing state of the invention of holding one's breath.
Fig. 4 is the structural side view of plate open mode of the invention of holding one's breath.
Fig. 5 is the structure sectional view of plate open mode of the invention of holding one's breath.
Fig. 6 is the structure upward view of plate open mode of the invention of holding one's breath.
Fig. 7 is transmission mechanism of the present invention and the Structure explosion diagram of negative pressure mechanism.
Fig. 8 is the structural representation of the circle of holding one's breath of the present invention.
Fig. 9 is the structural representation of the plate of holding one's breath of the present invention.
Figure 10 is the structural representation of the plate briquetting of holding one's breath of the present invention.
Figure 11,12 for the present invention countershaft of holding one's breath structural representation.
Figure 13 is the structural representation of the core of holding one's breath of the present invention.
Embodiment：
In order that technological means, creation characteristic, reached purpose and effect that the present invention is realized are easy to understand, tie below
Conjunction is specifically illustrating, and the present invention is expanded on further.
As shown in Fig. 1,2,3,4,5,6,7, a kind of feed opening negative pressure device produced for organosilicon, including discharge pipe
1st, power transmission shaft 2 and negative pressure mechanism 3, the negative pressure mechanism 3 are arranged on the bottom of discharge pipe 1, and the power transmission shaft 2 passes through discharge nozzle
Road 1 is connected by countershaft 34 of holding one's breath with negative pressure mechanism 3, it is characterised in that：
The bottom end side wall of power transmission shaft 2 sets multiple ellipticity transmission shaft through-holes 21 through transmission shaft body, power transmission shaft 2
Through the top of discharge pipe 1, by extending to discharge pipe bottom inside discharge pipe 1；
The negative pressure mechanism 3 is by circle 31 of holding one's breath, plate 32 of holding one's breath, plate briquetting 33 of holding one's breath, hold one's breath countershaft 34 and the structure of core 35 of holding one's breath
Into, plate 32 of holding one's breath, plate briquetting 33 of holding one's breath, hold one's breath countershaft 34 and core 35 of holding one's breath is separately positioned on the inside of circle 31 of holding one's breath, it is described to close
Gas plate 32 is connected by countershaft 34 of holding one's breath with core 35 of holding one's breath, and the plate briquetting 33 of holding one's breath is consolidated by countershaft 34 of holding one's breath with plate 32 of holding one's breath
Fixed connection；
As shown in Figure 7,8, the circle 31 of holding one's breath sets the connection through hole 311 of 4 transmissions itself, seals solid by screw 4
It is scheduled on the bottom of discharge pipe 1；
31 bottoms of circle of holding one's breath also set up connection neck 312.
As shown in Fig. 7,9, the plate 32 of holding one's breath is sector structure, and the side center of plate 32 of holding one's breath is set through plate 32 of holding one's breath
The plate through hole 321 of holding one's breath of, the two ends of plate through hole 321 of holding one's breath itself set board slot 322 of holding one's breath respectively, and board slot 322 of each holding one's breath sets 4
Individual connecting screw hole 323；
As shown in Fig. 7,10, the plate briquetting 33 of holding one's breath is arch bridge-like structure, and side sets groove 331, the both sides of groove 331
4 connecting screw holes 332 are set, and the groove 331 held one's breath on plate briquetting 33 laminating corresponding with the board slot 322 of holding one's breath for plate 32 of holding one's breath is led to
Cross bolt 333 and screw fixation；
The plate briquetting 33 two of holding one's breath is one group, and plate 32 of each holding one's breath is correspondingly arranged one group of plate briquetting 33 of holding one's breath；
As shown in Fig. 7,11,12, the countershaft 34 of holding one's breath is plain shaft structure, and one end is plane 341, and the other end sets double wedge
342；
The double wedge 342 is protrusion sector structure.
The plate 32 of holding one's breath sets 4, and plate 32 of holding one's breath is fixedly mounted on the flat of countershaft 34 of holding one's breath by plate briquetting 33 of holding one's breath
The one end of face 341；
The countershaft 34 of holding one's breath sets 4, and plate 32 of each holding one's breath is fixedly connected on one by one group of plate briquetting 33 of holding one's breath
Hold one's breath one end of countershaft 34；
As shown in Fig. 7,13, the core 35 of holding one's breath is cylindrical-shaped structure, and the center of circle sets holding one's breath through core 35 itself of holding one's breath
Core through hole 351, the bottom of power transmission shaft 2 is through holding one's breath core through hole 351, and the side wall of core 35 of holding one's breath sets 4 transmissions to hold one's breath 35, core
The lateral through aperture 352 of body, by holding one's breath, the one end of countershaft 34 with double wedge 342 is lived through lateral through aperture 352 with transmission shaft through-hole 21
Dynamic connection.
A kind of installation of feed opening negative pressure device produced for organosilicon and application method, it is characterised in that following step
Suddenly：
1) power transmission shaft 2 is passed through inside discharge pipe 1, and one end of V belt translation shaft through-hole 21 is arranged on the bottom of discharge pipe 1；
2) by screw 4 will hold one's breath circle 31 sealing be fixed on the bottom of tapping channel 1；
3) core 35 that will hold one's breath loads inside circle 31 of holding one's breath, and the ring set of core through hole 351 of holding one's breath is in the outside of power transmission shaft 2, core of holding one's breath
Lateral through aperture 352 just to transmission shaft through-hole 21, constitutes through-hole passage；
4) it is fixedly mounted and holds one's breath the one end of countershaft 34 with plane 341 by plate briquetting 33 of the holding one's breath plate 32 that will hold one's breath, passes through spiral shell
Bolt 333 screws fixation, and the installation method of 4 plates 32 of holding one's breath is identical；
5) one end of countershaft 34 with double wedge 342 is held one's breath through the lateral through aperture 352 for core 35 of holding one's breath, and insertion is driven shaft through-hole
21, it is flexibly connected with the transmission shaft through-hole 21 held one's breath in core through hole 351, the hold one's breath less one end of the internal diameter of plate 32 and core 35 of holding one's breath
Outer wall is brought into close contact, wherein, each transmission shaft through-hole 21 connects the double wedge of 342,4 countershaft 34 of holding one's breath of countershaft double wedge of holding one's breath
342 installation direction is consistent；
6) it is driven by power transmission shaft 2 in discharge pipe 1, the countershaft 34 of holding one's breath inside driving transmission shaft through-hole 21 is moved,
Countershaft 34 of holding one's breath extruding force leftward or rightward when being rotated by power transmission shaft 2 is influenceed, hold one's breath countershaft double wedge 342 therewith to the left or
Fitted with the transmission inwall of shaft through-hole 21 to the right, so as to drive plate 32 of holding one's breath to be rolled to a certain tiltedly, due to 4 countershaft double wedges of holding one's breath
342 installation direction is consistent, therefore 4 directions of the plate 32 to a certain inclination when oblique of holding one's breath are also consistent, in plate of holding one's breath
32 to it is a certain roll tiltedly after, between plate 32 of holding one's breath for open (such as Fig. 4,5,6) or close (such as Fig. 1,2,3) space so that
Realize during whole organosilicon production material is encapsulated, material is packed, gas is reduced or avoided and enters close
Envelope, improves the amount that holds of organic silicon materials and the resting period of material of hermetic bag.
The general principle and principal character and advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the simply explanation described in above-described embodiment and specification is originally
The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appending claims and its
Equivalent thereof.
Claims (2)
1. a kind of feed opening negative pressure device produced for organosilicon, including discharge pipe, power transmission shaft and negative pressure mechanism, described negative
Press mechanism is arranged on the bottom of discharge pipe, and the power transmission shaft is connected through discharge pipe by countershaft of holding one's breath with negative pressure mechanism,
It is characterized in that：
The power transmission shaft bottom end side wall sets multiple ellipticity transmission shaft through-holes through transmission shaft body, and power transmission shaft passes through discharging
The top of pipeline, by extending to discharge pipe bottom inside discharge pipe；
The negative pressure mechanism by circle of holding one's breath, plate of holding one's breath, plate briquetting of holding one's breath, hold one's breath countershaft and core of holding one's breath is constituted, plate of holding one's breath, plate of holding one's breath
Briquetting, hold one's breath core and countershaft of holding one's breath is separately positioned on the inside of circle of holding one's breath, the plate of holding one's breath, which passes through, holds one's breath countershaft and core of holding one's breath connects
Connect, the plate briquetting of holding one's breath is fixedly connected by countershaft of holding one's breath with plate of holding one's breath；
The circle of holding one's breath sets multiple bottoms for passing through the connection through hole of itself, discharge pipe being fixed on by screw sealing；
The circle bottom of holding one's breath also sets up connection neck；
The plate of holding one's breath is sector structure, and plate side center of holding one's breath is set through the plate through hole of holding one's breath of plate in itself of holding one's breath, and is held one's breath
Plate through hole two ends set board slot of holding one's breath respectively, and board slot of holding one's breath sets multiple connecting screw holes；
The plate briquetting of holding one's breath is arch bridge-like structure, and side sets groove, and groove both sides set multiple connecting screw holes, plate pressure of holding one's breath
Groove laminating corresponding with the board slot of holding one's breath for plate of holding one's breath on block, fixation is screwed by bolt；
The plate briquetting two of holding one's breath is one group, and plate of each holding one's breath is correspondingly arranged one group of plate briquetting of holding one's breath；
The countershaft of holding one's breath is plain shaft structure, and one end is plane, and the other end sets double wedge；
The double wedge is protrusion sector structure；
The plate of holding one's breath sets multiple, and plate of holding one's breath is fixedly mounted on the plane one end for countershaft of holding one's breath by plate briquetting of holding one's breath；
The countershaft of holding one's breath sets multiple, and plate of each holding one's breath is fixedly connected on a countershaft of holding one's breath by one group of plate briquetting of holding one's breath
One end；
The core of holding one's breath is cylindrical-shaped structure, and the center of circle is set through the core through hole of holding one's breath of core in itself of holding one's breath, and power transmission shaft bottom is passed through
Hold one's breath core through hole, the core side wall of holding one's breath sets multiple through the lateral through aperture of core in itself of holding one's breath, and passes through countershaft tape spool tooth of holding one's breath
One end through lateral through aperture be driven shaft through-hole be flexibly connected.
2. installation and the application method of a kind of feed opening negative pressure device produced for organosilicon, it is characterised in that following steps：
1) power transmission shaft is passed through inside discharge pipe, and one end of V belt translation shaft through-hole is arranged on the bottom of discharge pipe；
2) by screw will hold one's breath circle sealing be fixed on tapping channel bottom；
3) core that will hold one's breath loads circle inside of holding one's breath, and core through hole ring set of holding one's breath is in the outside of power transmission shaft, and core lateral through aperture of holding one's breath is just right
Shaft through-hole is driven, through-hole passage is constituted；
4) it is fixedly mounted and holds one's breath the one end of countershaft with plane by plate briquetting of the holding one's breath plate that will hold one's breath, fixation is screwed by bolt, it is many
The installation method of individual plate of holding one's breath is identical；
5) one end of countershaft with double wedge is held one's breath through the lateral through aperture for core of holding one's breath, and insertion is driven shaft through-hole, with holding one's breath in core through hole
Transmission shaft through-hole be flexibly connected, the hold one's breath less one end of plate internal diameter and the outer wall for core of holding one's breath are brought into close contact, wherein, be each driven
Shaft through-hole connects a countershaft double wedge of holding one's breath, and the installation direction of the double wedge of multiple countershafts of holding one's breath is consistent；
6) be driven by power transmission shaft in discharge pipe, driving transmission shaft through-hole inside hold one's breath countershaft motion, hold one's breath countershaft by
The influence of power transmission shaft extruding force leftward or rightward when rotating, countershaft double wedge of holding one's breath is therewith to the left or to the right with being driven shaft through-hole
Inwall is fitted, thus drive hold one's breath plate to it is a certain roll it is oblique, due to multiple installation directions for holding one's breath countershaft double wedge be it is consistent, because
This multiple plate of holding one's breath is also consistent to direction of a certain inclination when oblique, after plate of holding one's breath is oblique to a certain inclination, between plate of holding one's breath
For the space opened or closed.
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| CN201510311861.6A CN104925524B (en) | 2015-06-08 | 2015-06-08 | A kind of feed opening negative pressure device produced for organosilicon |
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| CN202729347U (en) * | 2012-08-10 | 2013-02-13 | 佐藤庆根 | Vacuum absorption conveying feeding device |
| CN202784855U (en) * | 2012-09-25 | 2013-03-13 | 江苏大学 | Pebble coal feeding device having separation function |
| CN203283872U (en) * | 2013-04-03 | 2013-11-13 | 舟山市普陀新兴医药化工有限公司 | Discharging control device of vacuum feeding machine |
| CN104129513A (en) * | 2014-07-21 | 2014-11-05 | 龙岩市凤凰机械有限公司 | Dense powder packaging method and device |
| CN204123574U (en) * | 2014-11-21 | 2015-01-28 | 台州市欧铭包装机械科技有限公司 | A kind of bottle cap block press scraper pushing cover device |
| CN204727206U (en) * | 2015-06-08 | 2015-10-28 | 蚌埠市万科硅材料科技有限公司 | A kind of feed opening negative pressure device produced for organosilicon |
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