CN111942627A - A spiral measurement machine ejection of compact structure for powder filling - Google Patents
A spiral measurement machine ejection of compact structure for powder filling Download PDFInfo
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- CN111942627A CN111942627A CN202010922160.7A CN202010922160A CN111942627A CN 111942627 A CN111942627 A CN 111942627A CN 202010922160 A CN202010922160 A CN 202010922160A CN 111942627 A CN111942627 A CN 111942627A
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- pipe
- powder filling
- guide pipe
- screw
- ring
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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
Abstract
The invention discloses a spiral metering machine discharging structure for powder filling, which comprises a metering screw and a guide pipe, wherein a plurality of through holes are formed in the outer circumferential surface of the guide pipe, a filtering sponge sleeve is sleeved outside the guide pipe, an outer protective cylinder is fixed outside the filtering sponge sleeve and is in sealing fit with the guide pipe, a gap is formed between the outer protective cylinder and the filtering sponge sleeve, the gap forms a vacuum cavity, a vacuumizing connector and a compressed air connector which are communicated with the vacuum cavity are respectively arranged on the outer protective cylinder, the lower end of the guide pipe is exposed out of the outer protective cylinder and is in sealing fit with the outer protective cylinder, the lower end of the guide pipe is connected with a discharging pipe, and a dust collection mechanism is arranged outside the discharging pipe. The invention has novel and ingenious structure and convenient operation, can effectively prevent powder in the spiral groove of the screw from falling from the gap between the metering screw and the guide pipe, can not cause dust flying, and is beneficial to protecting the workshop environment.
Description
Technical Field
The invention relates to a spiral metering machine, in particular to a discharging structure of the spiral metering machine for powder filling.
Background
The spiral metering machine is a common equipment for quantitatively filling powder in the pharmaceutical field, and the metering is completed by utilizing a spiral feeder (metering screw), namely, the volume is metered by utilizing a spiral groove of the metering screw, and the rotating speed of the metering screw is controlled in each subpackaging cycle, so that the physical quantity transmitted by the screw in each rotation can be controlled, and the aim of accurately metering is fulfilled.
Because there is certain clearance between the pipe of measurement screw rod and spiral metering machine, when the powder measures the volume, when the measurement screw rod stall, the powder that is arranged in the helicla flute of screw rod can fall from the clearance between measurement screw rod and the pipe, not only can cause the waste of powder, can cause the dust to fly upward moreover, pollutes the environment in workshop. The method adopted at present is that a pneumatic valve is arranged at the position of a discharge hole of a guide pipe, and the pneumatic valve is automatically closed when a metering screw stops rotating.
For example: chinese patent No. CN204623874U, granted on publication No. 2015.09.09, discloses an electromagnetic clutch control type screw metering device. The electromagnetic clutch control type screw metering device comprises a hopper, wherein a feed inlet is formed in the hopper, and the hopper comprises an upper straight cylinder section and a lower conical section; the center of the hopper is provided with a screw transmission shaft, the screw transmission shaft is connected with an electromagnetic clutch for driving the screw transmission shaft to rotate, and the bottom of the screw transmission shaft is connected with a metering screw; the outer wall of the screw transmission shaft is sleeved with a stirrer shaft sleeve in an empty way, and the stirrer shaft sleeve is provided with a first stirrer and a second stirrer; the bottom of the hopper is sequentially connected with a guide pipe and a funnel, the metering screw rod extends to the guide pipe, and a valve is arranged between the guide pipe and the funnel. The screw metering device has the following defects: (1) the mode of closing the guide pipe by the valve is adopted to prevent the powder in the spiral groove of the screw from falling from the gap between the metering screw and the guide pipe, the structure is complex, and the powder can be intercepted by a knife switch (or a valve core) to generate adhesion and accumulation when the valve is closed, so that the flow (discharge) of the material is blocked or the complete closing of the valve is blocked; (2) the outlet of the hopper can cause dust flying during discharging, and the environment of a workshop is polluted.
Disclosure of Invention
The invention aims to solve the technical problems of the screw metering device in the prior art, and provides the discharge structure of the spiral metering machine for powder filling, which has a novel and ingenious structure and convenient operation, can effectively prevent powder in a spiral groove of a screw from falling from a gap between a metering screw and a guide pipe, cannot cause dust flying, and is favorable for protecting the workshop environment.
In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a spiral metering machine ejection of compact structure for powder filling, includes metering screw and pipe, be equipped with a plurality of through-holes on the outer periphery of pipe, the pipe overcoat has the filter sponge sleeve pipe, filter sponge sleeve pipe external fixation has an outer section of thick bamboo that protects, the sealed cooperation between an outer section of thick bamboo and the pipe, there is the clearance between an outer section of thick bamboo that protects and the filter sponge sleeve pipe, and this clearance forms the vacuum chamber, is equipped with the evacuation connector and the compressed air connector that are linked together with the vacuum chamber on the outer section of thick bamboo that protects respectively, and the lower extreme of pipe exposes outside outer section of thick bamboo and between the outer section of thick bamboo sealed cooperation, and the lower extreme of pipe is connected with the discharging. The through hole is formed in the guide pipe, the filtering sponge sleeve and the outer protective sleeve are arranged outside the guide pipe, so that a vacuum cavity is formed in a space between the outer protective sleeve and the filtering sponge sleeve, powder in the spiral groove can be laterally adsorbed and fixed between the metering screw and the guide pipe to block a gap between the metering screw and the guide pipe in a negative pressure mode formed by vacuumizing the vacuum cavity, and therefore the powder in the spiral groove of the screw cannot fall down from the gap between the metering screw and the guide pipe, the operation is reliable, the sensitivity is high, and powder accumulation cannot be caused; the filtering sponge sleeve plays a role in filtering and blocking powder, so that the powder in the conduit is prevented from being pumped away in vacuum; the compressed air connector is used for introducing compressed air to perform back flushing cleaning on the filtering sponge sleeve, so that the blockage of a channel and a pore in the filtering sponge sleeve is avoided; the installation mode of the metering screw and the guide rod is a conventional means in the technical field; the discharging pipe is externally provided with a dust absorption mechanism which can absorb the powder raised during filling and metering, so as to avoid polluting the environment of the workshop.
Preferably, a connection snap ring is fixed at the upper end of the conduit, a limit step structure is arranged on the upper end face of the connection snap ring, a fastening groove is formed in the outer circumferential face of the connection snap ring, a limit convex ring is fixed on the bottom face of the connection snap ring, the upper end of the conduit is fixedly connected with the lower end face of the limit convex ring, and the upper end of the filtering sponge sleeve is abutted against the lower end face of the limit convex ring. The connecting clamp ring is used for connecting a feed opening of the hopper through a hoop, and the connecting mode is a conventional means in the field; the position of the connecting snap ring can be limited by the limiting convex ring, and the limiting convex ring is prevented from moving or shaking on a plane.
Preferably, the upper end opening of the connecting clamping ring is of a flaring structure.
Preferably, the lower end of the guide pipe is a threaded section, the threaded section is in threaded connection with the outer protective cylinder, a compression nut is in threaded connection with the threaded section exposed outside the outer protective cylinder, the compression nut is of a hollow cylindrical structure, the outer protective cylinder is of a cylindrical structure with an open top, the upper end of the compression nut is compressed with the bottom surface of the outer protective cylinder, the upper end face of the outer protective cylinder is compressed with the lower end face of the connecting clamp ring, and the lower end of the compression nut is connected with the discharge pipe. According to the invention, the outer protective cylinder and the connecting clamping ring are tightly pressed and fixed through the compression nut so as to be fixed outside the conduit, and the disassembly, the assembly and the cleaning are very convenient.
Preferably, a radial grid is arranged in the opening at the lower end of the compression nut.
Preferably, the outer edge of the upper end of the outer protective cylinder is provided with a pressing flange, and the pressing flange is pressed with the lower end face of the connecting clamp ring.
Preferably, the dust collection mechanism comprises a clamping ring and an outer cover body, the upper end of the outer cover body is fixedly connected with the lower end face of the clamping ring, the clamping ring is sleeved outside the compression nut and is fixedly clamped with the compression nut, the discharge pipe is located in the outer cover body, the upper end of the discharge pipe is fixedly connected with the lower end face of the clamping ring, a dust collection chamber is formed in a gap between the outer cover body and the discharge pipe, and the outer cover body is connected with a vacuum pumping pipe communicated with the dust collection chamber. The clamping ring sleeve is sleeved outside the compression nut and is fastened and fixed with the compression nut, and the clamping ring is a separated type clamping ring which is tightly held by a screw, so that the compression nut is clamped to fixedly connect the clamping ring and the compression nut together; a dust collecting chamber is formed in a gap between the outer cover body and the discharge pipe, and the raised powder materials are collected in the dust collecting chamber and are conveniently sucked away through the vacuum pumping pipe; the dust absorption mechanism can effectively solve the problem that the workshop environment is polluted by powder flying during discharging.
Preferably, a funnel is fixed at the upper end of the discharge pipe, and the upper end of the funnel is fixedly connected with the lower end face of the tightening ring.
Therefore, the invention has the following beneficial effects:
(1) the powder in the spiral groove is laterally adsorbed and fixed between the metering screw and the guide pipe to block a gap between the metering screw and the guide pipe in a mode of forming negative pressure by vacuumizing the vacuum cavity, so that the powder in the spiral groove of the screw cannot fall down from the gap between the metering screw and the guide pipe, the structure is ingenious, the operation is convenient, the sensitivity is high, and the powder accumulation cannot be caused;
(2) the dust collection mechanism is arranged outside the discharge pipe, and the raised powder materials are collected in the dust collection chamber and are sucked away through the vacuum-pumping pipe, so that the problem that the workshop environment is polluted due to the fact that the powder flies during discharging is effectively solved.
Drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is a sectional view of fig. 1.
Figure 3 is a top view of the compression nut of the present invention.
Figure 4 is a top view of the present invention gripping ring.
In the figure: a metering screw 1, a conduit 2, a through hole 3, a filtering sponge sleeve 4, an outer protective sleeve 5, a vacuum cavity 6 and a discharge pipe 7,
the device comprises a connecting clamp ring 8, a limiting step structure 9, a fastening groove 10, a limiting convex ring 11, a thread section 12, a compression nut 13, a grid 14, a compression flanging 15, a clamping ring 16, an outer cover body 17, a dust collecting chamber 18, a vacuumizing pipe 19, a funnel 20, a vacuumizing connector 21 and a compressed air connector 22.
Detailed Description
The invention is further described with reference to the following figures and detailed description.
As shown in fig. 1 and 2, a spiral metering machine discharging structure for powder filling comprises a metering screw 1, a conduit 2 and a dust suction mechanism, wherein a connecting snap ring 8 is fixed at the upper end of the conduit, an upper end opening of the connecting snap ring is of a flaring structure, a limiting step structure 9 is formed by protruding the upper end surface of the connecting snap ring, an annular fastening groove 10 is formed on the outer circumferential surface of the connecting snap ring, a limiting convex ring 11 is fixed at the bottom surface of the connecting snap ring, the upper end of the conduit is fixedly connected with the lower end surface of the limiting convex ring, a plurality of through holes 3 are formed on the outer circumferential surface of the conduit, a filtering sponge sleeve 4 is sleeved outside the conduit, the upper end of the filtering sponge sleeve is abutted against the lower end surface of the limiting convex ring, the lower end of the conduit is a threaded section 12, the threaded section is in threaded connection with an outer protective sleeve, a pressing nut 13 is in threaded connection with the threaded section exposed out of the outer protective sleeve, the, an outer protective barrel 5 is sleeved outside the filtering sponge sleeve, the outer protective barrel is of a cylindrical structure with an opening at the top, the outer edge of the upper end of the outer protective barrel is outwards turned to form a pressing flange 15, the upper end of a pressing screw cap is tightly pressed with the bottom surface of the outer protective barrel, the pressing flange on the outer protective barrel is tightly pressed with the lower end surface of a connecting snap ring, a gap exists between the outer protective barrel and the filtering sponge sleeve, the gap forms a vacuum cavity 6, and a vacuumizing connector 21 and a compressed air connector 22 which are communicated with the vacuum cavity are respectively arranged on the outer protective barrel; the dust collection mechanism comprises a tightening ring 16 and an outer cover body 17, the tightening ring is a separated tightening ring (shown in figure 4) held tightly by screws, the upper end of the outer cover body is fixedly connected with the lower end face of the tightening ring, the tightening ring is sleeved outside a gland nut and is fastened and fixed with the gland nut, the upper end of the outer cover body is fixedly connected with the lower end face of the tightening ring, a funnel 20 and a discharge pipe 7 are fixed in the outer cover body, the upper end of the funnel is fixedly connected with the tightening ring and is communicated with a guide pipe, the lower end of the funnel is connected with the discharge pipe, a dust collection chamber 18 is formed in a gap between the outer cover body and the discharge pipe, and a vacuum tube 19 communicated with the dust collection chamber is connected to the outer cover.
The operation principle of the invention is as follows: when the metering screw rotates, powder is conveyed to the discharge pipe from the guide pipe in a fixed amount, falls into a bottle from the discharge pipe for filling, and powder materials raised during filling are concentrated in the dust collecting chamber and are sucked away by the vacuum pumping pipe;
when the powder is metered to a certain amount, the metering screw stops rotating, the vacuum cavity is vacuumized through the vacuumizing connecting head, the powder in the spiral groove is laterally adsorbed under the action of vacuum adsorption force, and the powder is adsorbed in a gap between the metering screw and the guide pipe (overcoming gravity) under the filtering and blocking action of the filtering sponge sleeve pipe to block the gap between the metering screw and the guide pipe, so that the powder in the spiral groove of the screw cannot fall down from the gap between the metering screw and the guide pipe; when the metering screw rotates to feed for the next time, the vacuum cavity stops vacuumizing, and powder blocking the gap between the metering screw and the guide pipe moves downwards under the rotation of the metering screw for filling.
The above-described embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any way, and other variations and modifications may be made without departing from the spirit of the invention as set forth in the claims.
Claims (8)
1. The utility model provides a spiral metering machine ejection of compact structure for powder filling, includes metering screw (1) and pipe (2), its characterized in that, be equipped with a plurality of through-holes (3) on the outer peripheral face of pipe, the pipe overcoat has filtering sponge sleeve pipe (4), it is fixed with outer casing (5) to filter the sponge sleeve pipe outward, sealed fit between outer casing and the pipe, there is the clearance between outer casing and the filtering sponge sleeve pipe, and this clearance forms vacuum chamber (6), is equipped with evacuation connector (21) and compressed air connector (22) that are linked together with the vacuum chamber on the outer casing respectively, and the lower extreme of pipe exposes outside outer casing and sealed fit between the outer casing, and the lower extreme of pipe is connected with discharging pipe (7), the discharging pipe is equipped with dust absorption mechanism outward.
2. The spiral metering machine discharging structure for powder filling of claim 1, wherein a connecting snap ring (8) is fixed at the upper end of the conduit, a limiting step structure (9) is arranged on the upper end surface of the connecting snap ring, a fastening groove (10) is arranged on the outer circumferential surface of the connecting snap ring, a limiting convex ring (11) is fixed at the bottom surface of the connecting snap ring, the upper end of the conduit is fixedly connected with the lower end surface of the limiting convex ring, and the upper end of the filtering sponge sleeve is abutted against the lower end surface of the limiting convex ring.
3. The screw meter discharge structure for powder filling of claim 2, wherein the upper end opening of the connection snap ring is a flaring structure.
4. The spiral metering machine discharging structure for powder filling according to claim 2, wherein the lower end of the guide pipe is a threaded section (12), the threaded section is in threaded connection with the outer protecting cylinder, a gland nut (13) is in threaded connection with the threaded section exposed outside the outer protecting cylinder, the gland nut is in a hollow cylindrical structure, the outer protecting cylinder is in a cylindrical structure with an open top, the upper end of the gland nut is tightly pressed with the bottom surface of the outer protecting cylinder, the upper end surface of the outer protecting cylinder is tightly pressed with the lower end surface of the connecting clamping ring, and the lower end of the gland nut is connected with the discharging pipe.
5. A screw-type meter discharge structure for powder filling according to claim 4, wherein the opening at the lower end of the gland nut is provided with a radial grid (14).
6. The spiral metering machine discharging structure for powder filling of claim 4, wherein the outer edge of the upper end of the outer protecting cylinder is provided with a pressing flange (15), and the pressing flange is pressed against the lower end face of the connecting clamping ring.
7. The spiral metering machine discharging structure for powder filling of claim 4, wherein the dust sucking mechanism comprises a clamping ring (16) and an outer cover body (17), the upper end of the outer cover body is fixedly connected with the lower end face of the clamping ring, the clamping ring is sleeved outside the gland nut and is fastened and fixed with the gland nut, the discharging pipe is located in the outer cover body, the upper end of the discharging pipe is fixedly connected with the lower end face of the clamping ring, a dust collecting chamber (18) is formed in a gap between the outer cover body and the discharging pipe, and a vacuumizing pipe (19) communicated with the dust collecting chamber is connected to the outer cover body.
8. A spiral metering machine discharging structure for powder filling according to claim 7, wherein a funnel (20) is fixed at the upper end of the discharging pipe, and the upper end of the funnel is fixedly connected with the lower end face of the clamping ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010922160.7A CN111942627A (en) | 2020-09-04 | 2020-09-04 | A spiral measurement machine ejection of compact structure for powder filling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010922160.7A CN111942627A (en) | 2020-09-04 | 2020-09-04 | A spiral measurement machine ejection of compact structure for powder filling |
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| Publication Number | Publication Date |
|---|---|
| CN111942627A true CN111942627A (en) | 2020-11-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010922160.7A Pending CN111942627A (en) | 2020-09-04 | 2020-09-04 | A spiral measurement machine ejection of compact structure for powder filling |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114408583A (en) * | 2022-02-23 | 2022-04-29 | 杭州日至盛净化设备有限公司 | Storm formula adsorbent feeder |
-
2020
- 2020-09-04 CN CN202010922160.7A patent/CN111942627A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114408583A (en) * | 2022-02-23 | 2022-04-29 | 杭州日至盛净化设备有限公司 | Storm formula adsorbent feeder |
| CN114408583B (en) * | 2022-02-23 | 2024-04-26 | 杭州日至盛净化设备有限公司 | Storm type adsorbent feeder |
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