CN205837853U - A kind of screw feed mechanism and dry granulating machine - Google Patents
A kind of screw feed mechanism and dry granulating machine Download PDFInfo
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- CN205837853U CN205837853U CN201620733142.3U CN201620733142U CN205837853U CN 205837853 U CN205837853 U CN 205837853U CN 201620733142 U CN201620733142 U CN 201620733142U CN 205837853 U CN205837853 U CN 205837853U
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- screw rod
- feed box
- sealing ring
- feed mechanism
- shaped sealing
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Abstract
This utility model provides a kind of screw feed mechanism and dry granulating machine; wherein screw feed mechanism includes feed box and is installed on the screw rod of described feed box, also includes that being arranged at described screw rod for the U-shaped sealing ring of described screw rod axial seal and limits described U-shaped sealing ring at radially movable first limiting structure of described screw rod with described feed box cooperation position.In the technical program, U-shaped sealing ring restriction effect, the architectural characteristic in conjunction with U-shaped sealing ring are understood by the first limiting structure, this U-shaped sealing ring can be fitted screw rod all the time, this screw rod axial seal performance is greatly improved, and service life, relatively prior art was significantly improved, it is not necessary to often change.
Description
Technical field
This utility model relates to device for transporting objects technical field, is specifically related to a kind of screw feed mechanism.This practicality is new
Type relates to a kind of dry granulating machine simultaneously.
Background technology
In recent years, in pharmaceuticals industry, dry granulation process is comparatively fast developed, and is widely used in the medicine to various activity
Product raw material and the processed of one or more excipient.Dry granulation process refers to mix all the powder of medicine and adjuvant
Even, be compressed into big lamellar or tabular after, grinding screen is divided into the process of required size particles.
Dry granulation process is completed by dry granulating machine.Dry granulating machine mainly includes feeding mechanism, pressure roller extruder
Structure and granulation mechanism.Dried material is delivered to inside granulator from the feeding mechanism of dry granulating machine, extrudes at pressure roller
Under the extruding of mechanism, material becomes lamellar, and sheet material, through processes such as broken, granulate, screenings, obtains the granular product needed
Product.
Dry granulating machine generally uses screw feed mechanism that material is sent into the roll-in working area of pressure roller pressing mechanism.Spiral
Feed mechanism includes screw rod and feed box, and feed box is provided with the end cap allowing screw rod to stretch out.According to pharmaceutical industry GMP
Requirement, should not have material to reveal in equipment work process.Typically by sheathed tetrafluoro axle sleeve on screw rod in prior art
Mode realizes the axial seal of screw rod.But cause fit clearance to be gradually increased because of abrasion between tetrafluoro axle sleeve and screw rod,
Especially for this kind of insufficient formability of Chinese medicine, hygroscopicity is strong, viscosity is big etc. medicine, material is easily revealed from gap location, therefore
Sealing effectiveness is the best, needs often to change.
Utility model content
Therefore, the technical problems to be solved in the utility model is to overcome potted component sealing effectiveness of the prior art not
Good defect, thus a kind of screw feed mechanism is provided.
It addition, the technical problems to be solved in the utility model is to overcome potted component sealing effectiveness of the prior art not
Good defect, thus a kind of dry granulating machine is provided.
This utility model provides a kind of screw feed mechanism, including feed box and the spiral being installed on described feed box
Bar, also includes the U-shaped sealing being arranged at described screw rod and described feed box cooperation position for described screw rod axial seal
Circle and limit described U-shaped sealing ring at radially movable the first limiting structure of described screw rod.
Optionally, described feed box includes feed box body, is installed on described feed box body and allows described screw rod
Stretch out the end cap of described feed box and be arranged at the door between described end cap and described feed box body, described end cap and institute
Stating door is described first limiting structure.
Optionally, described U-shaped sealing ring opening is towards outside described feed box.
Optionally, also include being arranged at described screw rod close for described screw rod end face with described feed box cooperation position
The end face seal structure of envelope and limit described end face seal structure at axially movable the second limiting structure of described screw rod.
Optionally, it is the second limiting structure that described screw rod is provided with annular protrusion, described door and described annular protrusion.
Optionally, described end face seal structure is VD RunddichtringO.
This utility model provides a kind of dry granulating machine simultaneously, send including the spiral described in any of the above-described technical scheme
Material mechanism.
Technical solutions of the utility model, have the advantage that
1, a kind of helical material conveying device that this utility model provides, it includes U-shaped sealing ring and the first limiting structure.
It is radially movable at screw rod that first limiting structure limits U-shaped sealing ring, and the architectural characteristic in conjunction with U-shaped sealing ring understands, and this is U-shaped close
Seal can be fitted screw rod all the time so that this screw rod axial seal performance is greatly improved, and service life has bright compared with prior art
Aobvious raising, it is not necessary to often change.
2, this utility model provides a kind of helical material transport machine structure, and it also includes sealing for end face seal VD type
Circle, U-shaped sealing ring coordinates VD RunddichtringO, can be effectively prevented screw rod in work process and swing the material leakage caused, from
And make overall tightness reliable, effectively extend potted component service life, part of appliance and structure meet pharmaceutical industry GMP and
FDA code requirement.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model detailed description of the invention or technical scheme of the prior art, below by right
In detailed description of the invention or description of the prior art, the required accompanying drawing used is briefly described, it should be apparent that, describe below
In accompanying drawing be embodiments more of the present utility model, for those of ordinary skill in the art, do not paying creativeness
On the premise of work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
The schematic diagram of a kind of screw feed mechanism embodiment that Fig. 1 provides for this utility model.
Description of reference numerals:
1-screw rod, 2-end cap, 3-door, 4-VD RunddichtringO, 5-annular protrusion, 6-feed box, 7-spire, 8-send
Magazine body, 9-U RunddichtringO, 10-driving section.
Detailed description of the invention
Below in conjunction with accompanying drawing, the technical solution of the utility model is clearly and completely described, it is clear that described
Embodiment is a part of embodiment of this utility model rather than whole embodiments.Based on the embodiment in this utility model, this
The every other embodiment that field those of ordinary skill is obtained under not making creative work premise, broadly falls into this practicality
Novel protected scope.
Fig. 1 shows the embodiment of a kind of screw feed mechanism that this utility model provides.
From figure 1 it appears that this screw feed mechanism includes feed box 6 and is installed on the screw rod of described feed box 6
1.Described screw rod 1 is divided into the helical blade including power transmission shaft and arranging around described power transmission shaft.Described screw rod 1 one end is run through
Described feed box 6 is connected with driving means.The described screw rod of driving 1 in described driving means turns around described power transmission shaft axis
Dynamic.According to the architectural feature of helical blade, the material movement that described helical blade rotates in the described feed box 6 of promotion realizes
Material carries.Screw rod 1 is divided into the spire 7 of corresponding described helical blade and runs through described magazine 6 and described driving means phase
Driving section 10 even.
Described feed box 6 includes feed box body 8 and end cap 2.It is provided with the described driving section of permission on described end cap 2 to run through
The through hole that described feed box 6 is connected with described driving means.In the present embodiment, it is detachable that described end cap 2 is threaded connection part
It is installed on described feed box body 8.
It is additionally provided with door 3 between described feed box body 8 and described end cap 2.Described door 3 includes that permission is described equally
The through hole that driving section 10 is passed through.Described door 3 is fixed position under the effect of described end cap 2 and described feed box body 8.
The U-shaped sealing ring 9 for described screw rod 1 axial face seal it is provided with between described end cap 2 and described door 3.Institute
Stating U-shaped sealing ring and be sheathed on described driving section 10, its U-shaped opening is towards outside described feed box 6.Described door 3 and described end
Lid 2 composition limits described U-shaped sealing ring 9 at radially movable first limiting structure of described screw rod 1.The radial direction of described screw rod 1
Or axially it is described power transmission shaft radially or axially.Architectural feature in conjunction with U-shaped sealing ring understands, this U-shaped sealing ring 9
Can fit all the time screw rod 1 so that this screw rod 1 axial seal performance is greatly improved, and service life, relatively prior art had substantially
Improve, it is not necessary to often change.
This screw feed mechanism also includes being arranged at described screw rod 1 with described feed box 6 cooperation position for described spiral shell
The end face seal structure of swing arm 1 end face seal and limit described end face seal structure described screw rod 1 axial movable the
Two limiting structures.Specifically: this end face seal structure is the VD RunddichtringO 4 being sheathed on described driving section 10.Described driving section
10 are provided with annular protrusion 5 corresponding on described feed box 6 interior location.Described annular protrusion 5 and described door 3 form institute processed
State end face seal structure at axial the second movable limiting structure of described screw rod 1.In conjunction with the architectural feature of VD RunddichtringO,
Can ensure that described VD RunddichtringO 4 is fitted and described door 3 and described annular protrusion 5 all the time, thus ensure that described spiral
The sealing of bar 1 end face, can be effectively prevented screw rod 1 in work process and swing the material leakage caused,
In the technical program, described screw rod uses axially and end face two seals, makes this screw feeding structure entirety close
Sealing property is greatly improved, so that overall tightness is reliable, service life, relatively prior art was significantly improved, it is not necessary to the most more
Change, meet the requirement of pharmaceutical production safety management specification (Good Manufacturing Practice, GMP).
This utility model provides a kind of dry granulating machine simultaneously, and this dry granulating machine includes the spiral of technique scheme
Feed mechanism, is delivered to pressure roller working area by this screw feed mechanism by material.
Obviously, above-described embodiment is only for clearly demonstrating example, and not restriction to embodiment.Right
For those of ordinary skill in the field, can also make on the basis of the above description other multi-form change or
Variation.Here without also cannot all of embodiment be given exhaustive.And the obvious change thus extended out or
Change among the protection domain still in this utility model creation.
Claims (7)
1. a screw feed mechanism, it is characterised in that: include feed box (6) and be installed on the screw rod of described feed box (6)
(1), also include being arranged at described screw rod (1) with described feed box (6) cooperation position for described screw rod (1) axial seal
U-shaped sealing ring (9) and limit described U-shaped sealing ring (9) at radially movable the first limiting structure of described screw rod (1).
Screw feed mechanism the most according to claim 1, it is characterised in that: described feed box (6) includes feed box body
(8), it is installed on end cap (2) that described feed box body (8) allows described screw rod (1) to stretch out described feed box (6) and sets
The door (3) being placed between described end cap (2) and described feed box body (8), described end cap (2) is positioned at described screw rod (1)
It is described first limiting structure with the cooperation position of described feed box (6), described end cap (2) and described door (3).
Screw feed mechanism the most according to claim 2, it is characterised in that: described U-shaped sealing ring (9) opening is towards described
Feed box (6) outside.
Screw feed mechanism the most according to claim 2, it is characterised in that: also include being arranged at described screw rod (1) with
Described feed box (6) cooperation position is close for end face seal structure and the described end face of restriction of described screw rod (1) end face seal
Seal structure is at the second limiting structure of described screw rod (1) axially activity.
Screw feed mechanism the most according to claim 4, it is characterised in that: described screw rod (1) is provided with annular protrusion
(5), described door (3) and described annular protrusion (5) are the second limiting structure.
Screw feed mechanism the most according to claim 5, it is characterised in that: described end face seal structure is VD RunddichtringO
(4)。
7. a dry granulating machine, it is characterised in that: include the screw feed mechanism described in any one of claim 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620733142.3U CN205837853U (en) | 2016-07-12 | 2016-07-12 | A kind of screw feed mechanism and dry granulating machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620733142.3U CN205837853U (en) | 2016-07-12 | 2016-07-12 | A kind of screw feed mechanism and dry granulating machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205837853U true CN205837853U (en) | 2016-12-28 |
Family
ID=57619325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620733142.3U Active CN205837853U (en) | 2016-07-12 | 2016-07-12 | A kind of screw feed mechanism and dry granulating machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205837853U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108584315A (en) * | 2017-12-28 | 2018-09-28 | 攀枝花钢城集团有限公司 | Conveying device between dry iron powder sieve |
-
2016
- 2016-07-12 CN CN201620733142.3U patent/CN205837853U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108584315A (en) * | 2017-12-28 | 2018-09-28 | 攀枝花钢城集团有限公司 | Conveying device between dry iron powder sieve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220328 Address after: 102629 3rd floor, building 1, Tianrong street, Daxing biomedical industrial base, Zhongguancun Science and Technology Park, Daxing District, Beijing Patentee after: Beijing xinlongli Automation Technology Co.,Ltd. Address before: 102600 No. 11, Tianrong street, bioengineering and pharmaceutical industry base, Daxing District, Beijing Patentee before: BEIJING LONGLITECH Co.,Ltd. |