CN207327524U - Helicoidal gear with non-return ring structure - Google Patents
Helicoidal gear with non-return ring structure Download PDFInfo
- Publication number
- CN207327524U CN207327524U CN201721315764.5U CN201721315764U CN207327524U CN 207327524 U CN207327524 U CN 207327524U CN 201721315764 U CN201721315764 U CN 201721315764U CN 207327524 U CN207327524 U CN 207327524U
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- China
- Prior art keywords
- ring
- sealing
- return
- helicoidal gear
- clamping piece
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Abstract
The utility model provides a kind of helicoidal gear with non-return ring structure, including screw head, check ring, thrust ring and screw body, thrust ring includes the clamping piece of tapered barrel structure, is arranged on the sealing ring of clamping piece one end and is arranged on the support ring of the clamping piece other end；Check ring includes non-return ring body, the first inclined-plane of annular for being arranged on non-return ring body one end and the recessed seal groove for being used to connect with seal ring seal on the first inclined-plane；Sealing ring includes a special-shaped sealing surface, and when the helicoidal gear with non-return ring structure injects state, the special-shaped sealing surface of sealing ring and seal groove sealing are amplexiformed.The helicoidal gear with non-return ring structure of the utility model improves the sealing performance of the utility model, and then improve the ability of anti-return by the cooperation of the sealing ring of thrust ring and the seal groove of check ring.
Description
Technical field
Helicoidal gear field is the utility model is related to, more particularly to a kind of worm drive with non-return ring structure
Device.
Background technology
In injection molding machine, helicoidal gear is one of vital part.It is rotated in the machine barrel of injection molding machine, is mainly used for
Mould is injected by the plasticizing of solid plastic molten melt, storage metering, then by the plastics for being stored into a certain amount of molten state, obtains plastic cement
Product.
Helicoidal gear generally comprises barrel, screw head, check ring and screw body, and check ring is set on screw head,
For placing melt reflux.Existing check ring only by contact inclined-plane with check ring of the inclined-plane of check ring and screw head into
Row sealing coordinates, although simple in structure, the two be easy to cause contact surface to mill when contact and relative friction slides
Damage, and sealing performance is reduced, so that melt flows back, do not reach preferable effect.
Therefore, it is desirable to provide a kind of helicoidal gear with non-return ring structure, to solve above-mentioned technical problem.
Utility model content
The utility model embodiment provides a kind of helicoidal gear with non-return ring structure；It is existing spiral to solve
The technical problem that transmission device sealing performance is relatively low and anti-return effect is undesirable.
The utility model embodiment provides a kind of helicoidal gear with non-return ring structure, including screw head, non-return
Ring, thrust ring and screw body, the check ring and thrust ring are arranged between the screw head and screw body, the screw head,
Thrust ring is fixedly connected with screw body, and the helicoidal gear with non-return ring structure further includes a fixed seat, described solid
Reservation is fixed on the end of the screw body, and the thrust ring is fixed in the fixed seat；
The thrust ring includes the clamping piece of tapered barrel structure, the sealing ring for being arranged on described clamping piece one end and is arranged on
The support ring of the clamping piece other end；
The check ring includes non-return ring body, is arranged on first inclined-plane of annular of described non-return ring body one end and recessed in institute
State the first inclined-plane for the seal groove that is connected with the seal ring seal；
The sealing ring includes a special-shaped sealing surface, when the helicoidal gear with non-return ring structure is in injection
During state, the special-shaped sealing surface of the sealing ring and seal groove sealing are amplexiformed.
In the utility model, the special-shaped sealing surface includes a sealing inclined-plane, is connected to the sealing inclined-plane side
First joint face, the first of the connection sealing inclined-plane opposite side face directly, be connected to described first face directly second face directly；
Wherein, first joint face is faced directly parallel to described first, and described second faces directly and first folder faced directly
Angle is less than or equal to 90 °.
In the utility model, described second faces directly with first angle faced directly equal to 90 °.
In the utility model, the sealing ring, which further includes, is connected to the described second the second joint face faced directly, and described
One joint face is connected to the one side of the clamping piece, and second joint face is connected to the another side of the clamping piece；Described
One joint face is parallel to second joint face.
In the utility model, described first face directly with described second face directly rounded corner set.
In the utility model, one end that the clamping piece is provided with the sealing ring is first end, and the clamping piece connects
The one end for being connected to the support ring is second end, wherein the aperture area of the first end is more than the opening face of the second end
Product.
In the utility model, the angle of the lateral wall of the lateral wall of the support ring and the clamping piece is obtuse angle.
In the utility model, the screw head includes conical nose and the connecting rod for being connected to the head, the company
Extension bar is fixedly connected in the screw body.
In the utility model, the check ring is set in the outer circumferential side of the connecting rod and is located at the head and thrust
Between ring, the connecting rod passes through the thrust ring and fixed seat.
Compared to the helicoidal gear of the prior art, the helicoidal gear with non-return ring structure of the utility model
By the cooperation of the sealing ring of thrust ring and the seal groove of check ring, the sealing performance of the utility model is improved, and then is improved
The ability of anti-return；Additionally by the setting of the clamping piece of taper barrel structure, when thrust ring is connected in seal groove, and squeezing
Pressure continues under clamping so that the first end for being clamped piece extends laterally, and then improves sealing ring and seal groove sealing company
The tight ness rating connect, further increases the sealing performance of the two connection；Solves existing sealing performance relatively low and anti-time
Flow the undesirable technical problem of effect.
Brief description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below in embodiment
Required attached drawing is briefly described.Drawings in the following description are only the section Example of the utility model, for
For those of ordinary skill in the art, without creative efforts, other can also be obtained according to these attached drawings
Attached drawing.
Fig. 1 is the structural representation of the preferred embodiment of the helicoidal gear with non-return ring structure of the utility model
Figure；
Fig. 2 is the enlarged drawing of A in Fig. 1；
Fig. 3 is the knot of the promotion ring of the preferred embodiment of the helicoidal gear with non-return ring structure of the utility model
Structure schematic diagram.
Embodiment
The schema in attached drawing is refer to, wherein identical element numbers represent identical component.The following description is to be based on
Illustrated the utility model specific embodiment, it is not construed as limitation the utility model other specific realities not detailed herein
Apply example.
Fig. 1 to Fig. 3 is refer to, Fig. 1 is the preferred reality of the helicoidal gear with non-return ring structure of the utility model
Apply the structure diagram of example；Fig. 2 is the enlarged drawing of A in Fig. 1；Fig. 3 is the spiral biography with non-return ring structure of the utility model
The structure diagram of the promotion ring of the preferred embodiment of dynamic device.The helicoidal gear with non-return ring structure of the present embodiment
Including screw head 10, check ring 20, thrust ring 30 and screw body 40, check ring 20 and thrust ring 30 are arranged on screw head 10 and spiral shell
Between the body of rod 40, screw head 10, thrust ring 30 are fixedly connected with screw body 40.
The helicoidal gear with non-return ring structure of the present embodiment further includes a fixed seat 50, and fixed seat 50 is fixed on
On the end of screw body 40, thrust ring 30 is fixed in fixed seat 50；
Thrust ring 30 includes the clamping piece 31 of tapered barrel structure, the sealing ring 32 for being arranged on 31 one end of clamping piece and is arranged on
It is clamped the support ring 33 of 31 other end of piece；
Check ring 20 includes non-return ring body 21, the first inclined-plane of annular 22 for being arranged on non-return 21 one end of ring body and recessed the
The seal groove 23 being used for and sealing ring 32 is tightly connected on one inclined-plane 22；
Sealing ring 32 includes a special-shaped sealing surface, when the helicoidal gear with non-return ring structure is in injection state
When, special-shaped sealing surface and seal groove 23 sealing of sealing ring 32 are amplexiformed.
In the present embodiment, by the cooperation of the sealing ring 32 of thrust ring 30 and the seal groove 23 of check ring 20, improve close
Sealing property, and then improve the ability of anti-return.The effect of wherein support ring 33 is support card contact pin 31, is carried to clamping piece 31
For stable support force, clamping piece 31 is avoided to deform.
In the present embodiment, special-shaped sealing surface includes a sealing inclined-plane 321, is connected to the first of 321 side of sealing inclined-plane
Joint face 322, connect and the first of 321 opposite side of sealing inclined-plane face 323 directly, be connected to first and face directly 323 and second face 324 directly；
Wherein, the first joint face 322 faces 323 directly parallel to first, and second, which faces 324 and first directly, faces 323 angle directly and be less than or equal to
90°。
First, which faces 323 and second directly, faces 324 angle directly and is less than or equal to 90 ° of setting so that special-shaped sealing surface and sealing
The sealed connection of groove 32 is more close.Optionally, second face directly 324 and first face directly 323 angle be equal to 90 °.
In the present embodiment, sealing ring 32, which further includes, is connected to the second the second joint face 325 for facing 324 directly, the first connection
Face 322 is connected to the one side of clamping piece 31, and the second joint face 325 is connected to the another side of clamping piece 31；First joint face 322 is flat
Row is in the second joint face 325.First, which faces 323 and second directly, faces the setting of 324 rounded corners directly.323 and second are faced directly by first to face directly
The setting of 324 rounded corners, avoid special-shaped sealing surface and seal groove 23 amplexiform when, produce relative friction and damage.Rounding
Angle is to set, the two relatively low abrasion, improves service life.
In the present embodiment, one end that clamping piece 31 is provided with sealing ring 32 is first end, and clamping piece 31 is connected with support
One end of ring 33 is second end, and wherein the aperture area of first end is more than the aperture area of second end.Such setting, works as clamping
When the both ends of piece 31 are squeezed power, first end can be under clamping piece 31 structure function of itself, and radial direction laterally is prolonged
Exhibition.
Therefore when the present embodiment be in injection when, when thrust ring 30 is connected to middle in seal groove 23, and extruding force after
Under continuous effect, the radial direction expansion of the first end of piece 31 laterally is clamped, so as to extrude the side wall for pushing against seal groove 23 and bottom
Face, improves the sealed connection of sealing ring 32 and seal groove 23.
In the present embodiment, the angle of the lateral wall of the lateral wall of support ring 33 and clamping piece 31 is obtuse angle.Improve branch
Support force of the pushing out ring 33 to clamping piece 31.
In the present embodiment, screw head 10 includes conical nose 11 and the connecting rod 12 for being connected to head 11, connecting rod 12
It is fixedly connected in screw body 40.
In the present embodiment, check ring 20 be set in connecting rod 12 outer circumferential side and positioned at head 11 and thrust ring 30 it
Between, connecting rod 12 passes through thrust ring 30 and fixed seat 50.
The one side of head 11 towards check ring 20 sets connection inclined-plane, and the other end of non-return ring body 21 is provided with annular
Second inclined-plane, when the helicoidal gear with non-return ring structure injects state, connects inclined-plane and the sealing of the second inclined-plane is amplexiformed.
Helicoidal gear with non-return ring structure further includes a barrel 60, and screw head 10, check ring 20, promote ring
30th, screw body 40 and fixed seat 50 are arranged in barrel 60.
Head also penetrates through the circulation for being provided with and storage compartment being flowed into for material, the inside of flow passage check ring 20.
The injection process of the present embodiment is：
Screw rod and screw head move forward, and the compression indoor melt of storing is entered in mould to form product.At this
In compression process, the indoor melt pressure increase of storing, feed back, 20 following current side end face of check ring (has the second inclined-plane
End face) the substantial amounts of material of the cladding that walks, under material pressure, check ring 20 is moved to adverse current side direction, until check ring 20
Seal groove 23, which abuts, promotes the sealing ring 32 of ring 30 to carry out closing seam；Specifically, i.e. special-shaped sealing surface and seal groove 23 seals
Closure；
23 crush seal ring 32 of seal groove is clamped piece 31 so as to extrude so that the radial direction of the first end of clamping piece 32 laterally
Directional Extension, so that the side of sealing ring 32 pushes against the side wall of seal groove 23, further sealing, so as to prevent material
Reflux.
So just complete the injection process of the present embodiment.
Compared to the helicoidal gear of the prior art, the helicoidal gear with non-return ring structure of the utility model
By the cooperation of the sealing ring of thrust ring and the seal groove of check ring, the sealing performance of the utility model is improved, and then is improved
The ability of anti-return；Additionally by the setting of the clamping piece of taper barrel structure, when thrust ring is connected in seal groove, and squeezing
Pressure continues under clamping so that the first end for being clamped piece extends laterally, and then improves sealing ring and seal groove sealing company
The tight ness rating connect, further increases the sealing performance of the two connection；Solves existing sealing performance relatively low and anti-time
Flow the undesirable technical problem of effect.
In conclusion although the utility model is disclosed above with preferred embodiment, above preferred embodiment is not used
To limit the utility model, those of ordinary skill in the art, without departing from the spirit and scope of the utility model, can make
It is various to change and retouch, therefore the scope of protection of the utility model is subject to the scope that claim defines.
Claims (9)
1. a kind of helicoidal gear with non-return ring structure, including screw head, check ring, thrust ring and screw body, described
Check ring and thrust ring are arranged between the screw head and screw body, and the screw head, thrust ring are fixedly connected with screw body,
It is characterized in that, the helicoidal gear with non-return ring structure further includes a fixed seat, the fixed seat is fixed on institute
State on the end of screw body, the thrust ring is fixed in the fixed seat；
The thrust ring includes the clamping piece of tapered barrel structure, the sealing ring for being arranged on described clamping piece one end and is arranged on described
It is clamped the support ring of the piece other end；
The check ring includes non-return ring body, the first inclined-plane of annular for being arranged on described non-return ring body one end and recessed described the
One inclined-plane for the seal groove that is connected with the seal ring seal；
The sealing ring includes a special-shaped sealing surface, when the helicoidal gear with non-return ring structure is in injection state
When, the special-shaped sealing surface of the sealing ring and seal groove sealing are amplexiformed.
2. the helicoidal gear according to claim 1 with non-return ring structure, it is characterised in that the profile seal
Face includes a sealing inclined-plane, the first joint face for being connected to the sealing inclined-plane side, connects the sealing inclined-plane opposite side
First face directly, be connected to described first face directly second face directly；
Wherein, first joint face is faced directly parallel to described first, described second face directly it is small with first angle faced directly
In equal to 90 °.
3. the helicoidal gear according to claim 2 with non-return ring structure, it is characterised in that described second faces directly
It is equal to 90 ° with first angle faced directly.
4. the helicoidal gear according to claim 2 with non-return ring structure, it is characterised in that the sealing ring is also
Including being connected to the described second the second joint face faced directly, first joint face is connected to the one side of the clamping piece, described
Second joint face is connected to the another side of the clamping piece；First joint face is parallel to second joint face.
5. the helicoidal gear according to claim 2 with non-return ring structure, it is characterised in that described first faces directly
Rounded corner is faced directly with described second to set.
6. the helicoidal gear according to claim 1 with non-return ring structure, it is characterised in that the clamping piece is set
The one end for being equipped with the sealing ring is first end, and one end that the clamping piece is connected with the support ring is second end, wherein institute
The aperture area for stating first end is more than the aperture area of the second end.
7. the helicoidal gear according to claim 1 with non-return ring structure, it is characterised in that the support ring
The angle of the lateral wall of lateral wall and the clamping piece is obtuse angle.
8. the helicoidal gear according to claim 1 with non-return ring structure, it is characterised in that the screw head bag
Include conical nose and be connected to the connecting rod on the head, the connecting rod is fixedly connected in the screw body.
9. the helicoidal gear according to claim 8 with non-return ring structure, it is characterised in that the non-return ring set
It is located at the outer circumferential side of the connecting rod and between the head and thrust ring, the connecting rod is through the thrust ring and admittedly
Reservation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721315764.5U CN207327524U (en) | 2017-10-11 | 2017-10-11 | Helicoidal gear with non-return ring structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721315764.5U CN207327524U (en) | 2017-10-11 | 2017-10-11 | Helicoidal gear with non-return ring structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207327524U true CN207327524U (en) | 2018-05-08 |
Family
ID=62367894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721315764.5U Expired - Fee Related CN207327524U (en) | 2017-10-11 | 2017-10-11 | Helicoidal gear with non-return ring structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207327524U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110091480A (en) * | 2019-05-31 | 2019-08-06 | 徐锡东 | A kind of non-return ring mechanism of screw for injection molding machine |
-
2017
- 2017-10-11 CN CN201721315764.5U patent/CN207327524U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110091480A (en) * | 2019-05-31 | 2019-08-06 | 徐锡东 | A kind of non-return ring mechanism of screw for injection molding machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180508 Termination date: 20191011 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |