CN108545416B - Improved powder supply device - Google Patents
Improved powder supply device Download PDFInfo
- Publication number
- CN108545416B CN108545416B CN201810538941.9A CN201810538941A CN108545416B CN 108545416 B CN108545416 B CN 108545416B CN 201810538941 A CN201810538941 A CN 201810538941A CN 108545416 B CN108545416 B CN 108545416B
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- shaft
- powder
- hole
- choke
- steel sleeve
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- 239000000843 powder Substances 0.000 title claims abstract description 89
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 56
- 239000010959 steel Substances 0.000 claims abstract description 56
- 238000010521 absorption reaction Methods 0.000 claims abstract description 13
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims abstract description 8
- 235000017491 Bambusa tulda Nutrition 0.000 claims abstract description 8
- 241001330002 Bambuseae Species 0.000 claims abstract description 8
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims abstract description 8
- 239000011425 bamboo Substances 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims description 15
- 238000009434 installation Methods 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000004062 sedimentation Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G33/00—Screw or rotary spiral conveyors
- B65G33/08—Screw or rotary spiral conveyors for fluent solid materials
- B65G33/14—Screw or rotary spiral conveyors for fluent solid materials comprising a screw or screws enclosed in a tubular housing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G33/00—Screw or rotary spiral conveyors
- B65G33/24—Details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G33/00—Screw or rotary spiral conveyors
- B65G33/24—Details
- B65G33/26—Screws
- B65G33/265—Screws with a continuous helical surface
Abstract
The invention provides an improved powder supply device, and belongs to the technical field of building equipment manufacturing. It has solved prior art design irrational scheduling problem. This improved generation powder feeding device includes inlet pipe and storage feed cylinder, and the one end of inlet pipe and the top intercommunication of storage feed cylinder are equipped with at least one feed pump on the inlet pipe, still including the sealed shell body that holds the powder, the input port has been seted up along one side of the relative rear end of powder direction of delivery, is equipped with delivery outlet etc. along one side of the relative front end of powder direction of delivery to the shell body. The improved powder supply device has the advantages that: the setting of choke subassembly has reduced the downflow speed of gas in the storage section of thick bamboo greatly, and the subsidence of powder of being convenient for, and the setting of absorption assembly is convenient for assemble the storage section of thick bamboo lower part with the powder of subsidence, locates the reverse helicla flute on the axle steel bushing with screw axis syntropy pivoted and prevents that the powder from spilling the effect outside the casing body.
Description
Technical Field
The invention belongs to the technical field of building equipment manufacturing, and particularly relates to an improved powder supply device.
Background
The building powder is stored in the storage cylinder, the building powder is pumped by an air pump, the existing storage cylinder for storing the building powder is continuously stirred and rolled in the storage cylinder in the powder conveying process, the sedimentation of the powder in the storage cylinder is not facilitated, and therefore the powder in the storage cylinder is not facilitated to be stably conveyed by the conveying equipment of the building powder.
Disclosure of Invention
The invention aims to solve the problems, and provides an improved powder supply device which is reasonable in design and solves the problems that powder entering a storage cylinder cannot well settle and the powder flows out of a gap between a screw shaft and a shell of a screw conveying mechanism when the powder is conveyed.
In order to achieve the above purpose, the present invention adopts the following technical scheme: the invention relates to an improved powder supply device, which comprises a feeding pipe and a storage cylinder, wherein one end of the feeding pipe is communicated with the top of the storage cylinder, at least one feeding pump is arranged on the feeding pipe, the device also comprises a sealed shell body for containing powder, an input port is formed in one side of the opposite rear end of the shell body along the powder conveying direction, an output port is formed in one side of the opposite front end of the shell body along the powder conveying direction, at least one pair of front shaft through holes which are correspondingly arranged and used for a screw shaft to penetrate out and are positioned at the opposite front end along the powder conveying direction and rear shaft through holes positioned at the opposite rear end along the powder conveying direction are formed in the shell body, one end of the screw shaft penetrates out of one rear shaft through hole to be connected with a driving motor, the other end of the screw shaft penetrates out of the front shaft through holes to be connected with a supporting bearing, and the storage cylinder is communicated with the input port on the shell body through a discharging pipe, and the device is characterized in that: a choke component and an absorption component are sequentially arranged in the storage cylinder from top to bottom; the powder leakage returning structure is arranged between the screw shaft and the front shaft through hole and is used for returning powder leaked from a gap between the screw shaft and the front shaft through hole into the shell body, the leakage returning structure comprises a shaft steel sleeve which is tightly arranged on the screw shaft and is positioned on the peripheral side of the front shaft through hole, at least one reverse spiral groove which is spirally wound on the peripheral outer side of the shaft steel sleeve and is opposite to the rotating direction of the screw shaft is formed in the shaft steel sleeve, and a first annular gap with the cross section of an annular shape is reserved between the outer side of the shaft steel sleeve and the inner side of the front shaft through hole. The setting of choke subassembly has reduced the downflow speed of gas in the storage section of thick bamboo greatly, the subsidence of the powder of being convenient for, and the setting of absorption assembly is convenient for assemble the powder of subsidence to storage section of thick bamboo lower part, locates with the epaxial reverse helical groove's of screw axis syntropy pivoted setting on the axle steel bushing and makes the powder that spills in the first annular space between screw axis and the front axle through-hole can be followed its rotation and the reverse direction along powder direction of delivery back to the casing body after flowing into reverse helical groove to the effect that prevents that the powder from spilling outside the casing body has been played.
Preferably, the choke assembly comprises a mounting table which is in circumferential sealing connection with the inner side of the storage cylinder, wherein the mounting table is provided with at least one mounting through hole, and a choke screen is arranged in each mounting through hole; a choke spindle which is rotationally connected with the adjacent installation through hole is arranged on the central line of the choke screen; the installation table is provided with 4 choke screens, all the choke screens are uniformly arranged at the outer side of the central part of the installation table at intervals, and all the choke screens have the same shape and size; the absorption assembly comprises a flaring type material sucking cover, the peripheral side of the end part of the relatively large end of the material sucking cover is in sealing connection with the material storage cylinder, and the port of the relatively large end of the material sucking cover is adjacent to the mounting table.
Preferably, the mounting table is in an inverted cone shape and is of a hollow structure, and the choke rotating shaft is obliquely arranged downwards; the choke screen is made of linen, and comprises at least one layer of linen, wherein the mesh of the linen is 40-55 meshes.
Preferably, the cross-sectional area of the port at the relatively large end of the suction hood is 2.2 to 3.5 times the cross-sectional area of the port at the relatively small end; the relative small end of the absorbing cover is provided with a receiving sleeve which is communicated with the absorbing cover and made of linen, and the port of the relative lower end of the receiving sleeve is smaller than the port of the relative upper end; and vibrators are arranged on the choke assembly and the absorption assembly.
Preferably, the leakage returning structure further comprises an outer steel sleeve fixedly arranged on the inner side of the front shaft through hole and used for the screw shaft to pass through, and a second annular gap with an annular cross section is reserved between the outer steel sleeve and the shaft steel sleeve; the end face of the outer steel sleeve, which is close to one end of the shell body, is flush with the end face of the shaft steel sleeve, which is close to one end of the shell body.
Preferably, the notch of the reverse spiral groove close to one end of the shell body is communicated with the end face of the adjacent end of the shaft steel sleeve; the bottom of the notch of the reverse spiral groove, which is close to one end of the shell body, is cut with an inclined slope surface which is arranged along the reverse direction of powder conveying and is inclined inwards; the number of turns in the reverse helical groove is at least 3.
Preferably, the shaft steel sleeve is of a cylindrical structure, and the reverse spiral groove formed in the shaft steel sleeve is in a cylindrical spiral line shape.
Preferably, the shaft steel sleeve is of a conical structure, the relatively smaller end of the shaft steel sleeve is adjacent to the shell body, and the reverse spiral groove formed in the shaft steel sleeve is in a conical spiral line shape.
Preferably, the number of the screw shafts is two, the screw shafts are arranged in the shell body in parallel along the powder conveying direction, the rotation directions of the two screw shafts are opposite, correspondingly, the number of pairs of the rear shaft through holes and the front shaft through holes is two, and each screw shaft is provided with a leakage return structure.
Compared with the prior art, the improved powder supply device has the advantages that: the setting of choke subassembly has reduced the downflow speed of gas in the storage section of thick bamboo greatly, the subsidence of the powder of being convenient for, and the setting of absorption assembly is convenient for assemble the powder of subsidence to storage section of thick bamboo lower part, locates with the epaxial reverse helical groove's of screw axis syntropy pivoted setting on the axle steel bushing and makes the powder that spills in the first annular space between screw axis and the front axle through-hole can be followed its rotation and the reverse direction along powder direction of delivery back to the casing body after flowing into reverse helical groove to the effect that prevents that the powder from spilling outside the casing body has been played.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 provides a schematic view of the structure of the feed tube, feed pump and storage cartridge and its interior in an embodiment of the present invention.
FIG. 2 provides a schematic top view of the mounting table, mounting holes, choke screens and choke spindle in an embodiment of the invention.
Fig. 3 provides a schematic structural view of the drive motor, support bearing, screw shaft and housing body and the interior thereof in an embodiment of the present invention.
Fig. 4 provides an enlarged view of a portion a of fig. 3.
In the figure, a feed pipe 1, a storage cylinder 2, a feed pump 3, a mounting table 501, a mounting through hole 502, a choke screen 503, a choke shaft 504, a suction hood 505, a receiving jacket 506, a vibrator 507, a housing body 701, an input port 702, an output port 703, a screw shaft 704, a front shaft through hole 705, a rear shaft through hole 706, a drive motor 707, a support bearing 708, a shaft steel jacket 709, a reverse screw groove 710, an outer steel jacket 711, a second annular gap 712, a first annular gap 713, and a discharge pipe 8.
Detailed Description
The present invention will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and not limited to the following examples.
As shown in fig. 1 to 4, the improved powder supply device comprises a feed pipe 1 and a feed storage cylinder 2, wherein one end of the feed pipe 1 is communicated with the top of the feed storage cylinder 2, at least one feed pump 3 is arranged on the feed pipe 1, the improved powder supply device further comprises a sealed shell body 701 for containing powder, an input port 702 is formed in one side of the opposite rear end of the shell body 701 along the powder conveying direction, an output port 703 is formed in one side of the opposite front end of the shell body 701 along the powder conveying direction, at least one pair of front shaft through holes 705 which are correspondingly arranged and are used for a screw shaft 704 to penetrate and are positioned at the opposite front ends along the powder conveying direction, and rear shaft through holes 706 which are positioned at the opposite rear ends along the powder conveying direction are formed in the shell body 701, one end of the screw shaft 704 penetrates through one rear shaft through hole 706 to be connected with a driving motor 707, and the other end penetrates through the front shaft through holes 705 to be connected with a supporting bearing 708, and the improved powder supply device is characterized in that: a choke component and an absorption component are sequentially arranged in the storage cylinder 2 from top to bottom; the leakage returning structure is arranged between the screw shaft 704 and the front shaft through hole 705 and is used for returning the powder leaked from the gap between the screw shaft 704 and the front shaft through hole 705 into the shell body 701, the leakage returning structure comprises a shaft steel sleeve 709 which is tightly arranged on the screw shaft 704 and is positioned on the circumferential side of the front shaft through hole 705, at least one reverse spiral groove 710 which is spirally wound on the circumferential outer side of the shaft steel sleeve and is opposite to the rotating direction of the screw shaft 704 is arranged on the shaft steel sleeve 709, a first annular gap 713 with the annular cross section is reserved between the outer side of the shaft steel sleeve 709 and the inner side of the front shaft through hole 705, the speed of downward flowing of gas in the storage cylinder 2 is greatly reduced by the arrangement of a choke assembly, the sedimentation of the powder is facilitated, the arrangement of the reverse spiral groove 710 which is arranged on the shaft steel sleeve 709 and is rotated in the same direction as the screw shaft steel sleeve 704 is arranged on the first annular gap 713, the powder leaked from the screw shaft 704 and the front shaft through hole 705 can flow back into the shell body along the rotating direction of the powder after flowing into the reverse spiral groove 710, and the powder can flow back into the shell body along the direction of the shell body, and the leakage of the powder is prevented.
Specifically, the choke assembly comprises a mounting table 501 which is in circumferential sealing connection with the inner side of the storage cylinder 2, at least one mounting through hole 502 is formed in the mounting table 501, a choke screen 503 is arranged in each mounting through hole 502, the arrangement of the choke screen 503 not only retards the downward flow rate of gas, but also enables powder settled in the gas to enter the absorption assembly below through the screen holes in the choke screen 503, and the choke assembly is simple in structure and convenient to manufacture; the choke rotary shaft 504 which is rotationally connected with the adjacent installation through holes 502 is arranged on the central line of the choke screen 503, the choke rotary shaft 504 enables the choke rotary shaft 504 to rotate by pushing the choke screen 503 when the gas in the storage cylinder 2 flows downwards, the kinetic energy of the gas is consumed, the speed of delaying the downward flow of the gas is achieved, the sedimentation of powder in the gas is facilitated, on the other hand, the damage to the choke screen 503 caused by the pushing of the gas to the choke screen 503 is reduced, and the service life of the choke screen 503 is prolonged; the installation table 501 is provided with 4 choke screens 503, all the choke screens 503 are uniformly arranged at the outer side of the central part of the installation table 501 at intervals, and all the choke screens 503 have the same shape and size, so that the choke effect is enhanced, and more powder is facilitated to be settled into an absorption assembly below the choke screens 503 through the sieve holes in the choke screens 503; the mounting table 501 is in an inverted cone shape and is of a hollow structure, the choke rotating shaft 504 is arranged obliquely downwards, and the rotation of the choke screen 503 is facilitated by utilizing the height difference; the choke screen 503 is made of linen, the choke screen 503 comprises at least one layer of linen, and the mesh of the linen is 40-55 meshes, so that the collection of powder is facilitated; the absorbing assembly comprises a flared absorbing cover 505, wherein the peripheral side of the end part of the opposite large end of the absorbing cover 505 is in sealing connection with the storage cylinder 2, the end part of the opposite large end of the absorbing cover 505 is adjacent to the mounting table 501, and the flared absorbing cover 505 is arranged so as to be convenient for receiving powder flowing into the sieve holes of the choke screen 503 on the mounting table 501 above the flared absorbing cover 505; the cross-sectional area of the port at the relatively large end of the suction cap 505 is 2.2 to 3.5 times that of the port at the relatively small end, so that the powder can be sucked into the lower part of the storage cylinder 2 better; the smaller end of the suction cover 505 is provided with a receiving sleeve 506 which is communicated with the receiving sleeve and made of linen, the port of the lower end opposite to the receiving sleeve 506 is smaller than the port of the upper end opposite to the receiving sleeve 506, and the receiving sleeve 506 made of linen greatly reduces the reverse inflow of powder at the lower part of the storage cylinder 2 to the upper part of the storage cylinder 2; the choke assembly and the absorption assembly are provided with vibrators 507, and the preferred vibrators 507 are arranged on the suction cover 505 and the choke screen 503, so that powder settled on the choke assembly and the absorption assembly can smoothly flow into the lower part of the storage cylinder 2.
Further, the leakage returning structure further comprises an outer steel sleeve 711 fixedly arranged on the inner side of the front shaft through hole 705 and through which the screw shaft 704 passes, a second annular gap 712 with an annular cross section is reserved between the outer steel sleeve 711 and the shaft steel sleeve 709, and the arrangement of the outer steel sleeve 711 is not limited by the length of the front shaft through hole 705 any more, so that the outer steel sleeves 711 with different lengths can be selected according to the requirement, the powder can be prevented from leaking, and the application range is improved; the end face of the outer steel sleeve 711, which is close to one end of the shell body 701, is flush with the end face of the shaft steel sleeve 709, which is close to one end of the shell body 701, so that leaked powder can quickly enter the reverse spiral groove 710 under the guiding action of the outer steel sleeve 711; the notch of the reverse spiral groove 710 near one end of the shell body 701 is communicated with the end face of the adjacent end of the shaft steel sleeve 709, so that leaked powder can enter the reverse spiral groove 710 better; the bottom of the notch of the reverse spiral groove 710 near one end of the shell body 701 is cut with an inclined slope surface which is arranged along the reverse direction of powder conveying and is inclined inwards, so that powder in the reverse spiral groove 710 can flow back into the shell body 701 better, and the powder in the shell body 701 can be prevented from leaking to a certain extent; the number of turns in the reverse spiral groove 710 is at least 3, and the structure is simple and convenient to manufacture; the shaft steel sleeve 709 has a cylindrical structure, and the reverse spiral groove 710 formed on the shaft steel sleeve 709 has a cylindrical spiral line shape, so that the structure is simple and the manufacturing is convenient; the shaft steel sleeve 709 is of a conical structure, the relatively smaller end of the shaft steel sleeve 709 is adjacent to the shell body 701, and the reverse spiral groove 710 formed in the shaft steel sleeve 709 is in a conical spiral line shape, so that the function of blocking powder leakage is further improved; the number of the screw shafts 704 is two, the screw shafts 704 are arranged in the shell body 701 in parallel along the powder conveying direction, the rotation directions of the two screw shafts 704 are opposite, correspondingly, the number of pairs of the rear shaft through holes 706 and the front shaft through holes 705 is two, and each screw shaft 704 is provided with a material leakage returning structure, so that the mixing and stirring effect is improved.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Although terms such as the feed pipe 1, the storage cylinder 2, the feed pump 3, the mount table 501, the mount through-hole 502, the choke screen 503, the choke spindle 504, the suction cap 505, the receiving jacket 506, the vibrator 507, the housing body 701, the input port 702, the output port 703, the screw shaft 704, the front shaft through-hole 705, the rear shaft through-hole 706, the driving motor 707, the support bearing 708, the shaft steel jacket 709, the reverse spiral groove 710, the outer steel jacket 711, the second annular space 712, the first annular space 713, the discharge pipe 8, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely for convenience in describing and explaining the nature of the invention; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present invention.
Claims (6)
1. The utility model provides an improved generation powder feeding device, includes inlet pipe (1) and storage section of thick bamboo (2), one end of inlet pipe (1) communicate with the top of storage section of thick bamboo (2), inlet pipe (1) on be equipped with at least one feed pump (3), still include sealed shell body (701) that holds the powder, shell body (701) along the one side of the relative rear end of powder direction of delivery be equipped with input port (702), along the one side of the relative front end of powder direction of delivery be equipped with delivery outlet (703), shell body (701) on along the both ends of powder direction of delivery be equipped with at least one front axle through-hole (705) and at least one rear axle through-hole (706), front axle through-hole (705) and rear axle through-hole (706) correspond the setting, front axle through-hole (705) are located along the relative front end of powder direction of delivery, rear axle through-hole (706) are located along the relative rear end of powder direction of delivery; the front shaft through hole (705) and the rear shaft through hole (706) are used for the screw shaft (704) to penetrate out, one end of the screw shaft (704) penetrates through the rear shaft through hole (706) to be connected with the driving motor (707), the other end of the screw shaft penetrates through the front shaft through hole (705) to be connected with the supporting bearing (708), and the material storage barrel (2) is communicated with the input port (702) on the shell body (701) through the discharging pipe (8), and is characterized in that: a choke component and an absorption component are sequentially arranged in the storage cylinder (2) from top to bottom; a leakage returning structure for returning the powder leaked from the gap between the screw shaft (704) and the front shaft through hole (705) into the shell body (701) is arranged between the screw shaft (704) and the front shaft through hole (705), the leakage returning structure comprises a shaft steel sleeve (709) which is tightly arranged on the screw shaft (704) and is positioned on the periphery side of the front shaft through hole (705), at least one reverse spiral groove (710) which is spirally wound on the periphery outside of the shaft steel sleeve and is opposite to the rotating direction of the screw shaft (704) is arranged on the shaft steel sleeve (709), and a first annular gap (713) with the cross section of an annular shape is reserved between the outer side of the shaft steel sleeve (709) and the inner side of the front shaft through hole (705);
the choke assembly comprises an installation table (501) which is connected with the inner side of the storage cylinder (2) in a circumferential sealing manner, wherein the installation table (501) is provided with at least one installation through hole (502), and a choke screen (503) is arranged in each installation through hole (502); the central line of the choke screen (503) is provided with a choke rotating shaft (504) which is rotationally connected with the adjacent installation through hole (502); the installation table (501) is provided with 4 choke screens (503), all the choke screens (503) are uniformly arranged at the outer side of the central part of the installation table (501) at intervals, and all the choke screens (503) have the same shape and size; the absorbing assembly comprises a flaring type material absorbing cover (505), the peripheral side of the end part of the relatively large end of the material absorbing cover (505) is in sealing connection with the material storage cylinder (2), and the port of the relatively large end of the material absorbing cover (505) is adjacent to the mounting table (501);
the mounting table (501) is of an inverted cone shape and is of a hollow structure, and the choke rotating shaft (504) is obliquely arranged downwards; the choke screen (503) is made of linen, the choke screen (503) comprises at least one layer of linen, and the mesh of the linen is 40-55 meshes;
the cross-sectional area of the port at the relatively large end of the suction cover (505) is 2.2 times to 3.5 times that of the port at the relatively small end; the material absorbing cover (505) is provided with a material receiving sleeve (506) which is communicated with the material absorbing cover and made of linen, and the port of the material receiving sleeve (506) at the opposite lower end is smaller than the port at the opposite upper end; and vibrators (507) are arranged on the choke assembly and the absorption assembly.
2. The improved powder feeding device according to claim 1, wherein the leakage returning structure further comprises an outer steel sleeve (711) fixedly arranged on the inner side of the front shaft through hole (705) and used for a screw shaft (704) to pass through, and a second annular gap (712) with an annular cross section is reserved between the outer steel sleeve (711) and the shaft steel sleeve (709); the end face of the outer steel sleeve (711) close to one end of the shell body (701) is flush with the end face of the shaft steel sleeve (709) close to one end of the shell body (701).
3. The improved powder feeder as claimed in claim 2, wherein the notch of the reverse spiral groove (710) near one end of the housing body (701) communicates with the end face of the adjacent end of the shaft sleeve (709); the bottom of the notch of the reverse spiral groove (710) close to one end of the shell body (701) is cut with an inclined slope surface which is arranged along the reverse direction of powder conveying and is inclined inwards; the number of turns in the reverse spiral groove (710) is at least 3.
4. The improved powder feeder as claimed in claim 2, wherein the shaft steel sleeve (709) has a cylindrical structure, and the reverse spiral groove (710) formed in the shaft steel sleeve (709) has a cylindrical spiral shape.
5. The improved powder feeding device according to claim 2, wherein the shaft steel sleeve (709) has a conical structure, the relatively smaller end of the shaft steel sleeve (709) is adjacent to the shell body (701), and the reverse spiral groove (710) formed on the shaft steel sleeve (709) has a conical spiral shape.
6. The improved powder feeding device according to claim 2, wherein the number of the screw shafts (704) is two, the screw shafts (704) are arranged in the shell body (701) in parallel along the powder conveying direction, the rotation directions of the two screw shafts (704) are opposite, correspondingly, the rear shaft through hole (706) and the front shaft through hole (705) are respectively provided with two screw shafts (704), and each screw shaft (704) is provided with a material leakage returning structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810538941.9A CN108545416B (en) | 2018-05-30 | 2018-05-30 | Improved powder supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810538941.9A CN108545416B (en) | 2018-05-30 | 2018-05-30 | Improved powder supply device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108545416A CN108545416A (en) | 2018-09-18 |
| CN108545416B true CN108545416B (en) | 2023-11-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810538941.9A Active CN108545416B (en) | 2018-05-30 | 2018-05-30 | Improved powder supply device |
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| CN (1) | CN108545416B (en) |
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| KR200472745Y1 (en) * | 2014-01-13 | 2014-05-19 | 송진환 | Auger feeder to prevent the dust generated in the sealing device |
| CN205274500U (en) * | 2015-12-11 | 2016-06-01 | 崇义章源钨业股份有限公司 | Screw conveyer |
| CN106925413A (en) * | 2017-05-11 | 2017-07-07 | 安徽科信矿山机械制造有限公司 | A kind of feeding device crushed for mine work stone |
| CN207324990U (en) * | 2017-06-15 | 2018-05-08 | 王芮苗 | A kind of Novel wooden powder particles extrusion forming device |
| CN107469663A (en) * | 2017-09-14 | 2017-12-15 | 单梦霞 | A kind of solid-liquid raw material mixes conveying device |
| CN207413249U (en) * | 2017-10-11 | 2018-05-29 | 宁夏工商职业技术学院（宁夏化工技工学校宁夏机电工程学校宁夏农业机械化学校） | Furniture panel production feed device |
| CN208560648U (en) * | 2018-05-30 | 2019-03-01 | 浙江益能建材科技有限公司 | Modified powder lot feeding device |
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|---|---|
| CN108545416A (en) | 2018-09-18 |
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Effective date of registration: 20231013 Address after: No. 848, Zhangxin North Road, Xiaolin Town, Cixi City, Ningbo City, Zhejiang Province 315300 Applicant after: Zhejiang Zhongqin Construction Co.,Ltd. Address before: 313200 No. 333 Changhong Middle Street, Wukang Town, Deqing County, Huzhou City, Zhejiang Province Applicant before: ZHEJIANG YINENG BUILDING MATERIAL TECHNOLOGY CO.,LTD. |
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