CN109130094A - A kind of helical gear mold of injection molding helical angle - Google Patents
A kind of helical gear mold of injection molding helical angle Download PDFInfo
- Publication number
- CN109130094A CN109130094A CN201811124409.9A CN201811124409A CN109130094A CN 109130094 A CN109130094 A CN 109130094A CN 201811124409 A CN201811124409 A CN 201811124409A CN 109130094 A CN109130094 A CN 109130094A
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- CN
- China
- Prior art keywords
- helical
- same direction
- helical angle
- plate
- gear
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/40—Removing or ejecting moulded articles
- B29C45/44—Removing or ejecting moulded articles for undercut articles
Abstract
The present invention provides a kind of helical gear molds of injection molding helical angle, including mold core, mold core front is provided with helical teeth mold core, helical teeth mold core, which is equipped with, shrinks preceding corresponding helical angle helical teeth with spiral angle beveled wheel product, one in the same direction the same as helical angle external gear, and the external same helical angle internal gear in the same direction to match is set, it can be moved forward and backward in the same direction with the development length rotation of helical angle external gear around described with helical angle internal gear in the same direction, mold core pass through in the same direction with helical angle external gear and by fastener be fixedly connected in the same direction with helical angle external gear, one mould ejection plate, mold core penetrates the middle part of mould ejection plate, one second push rod fixed with mould ejection plate, directly or indirectly pass through second push rod with helical angle internal gear in the same direction and acts on mould ejection plate to push the mould ejection plate.Spiral angle beveled wheel product is released simultaneously in mould ejection plate, and because of mold core synchronous rotary, when pushing away product, the helical gear teeth portion of helical angle is not by radial force, so as to produce micron order spiral angle beveled wheel.
Description
Technical field
The present invention relates to mould applications, more particularly to a kind of helical gear mold of injection molding helical angle.
Background technique
When currently manufactured sparetime university's batch method of forming production helical gear, because of helical angle reason, the helical angle is caused to be more than after 25 degree,
The helical gear precision that mold manufactures is very poor, not can guarantee product quality.Cause all to avoid production helical angle in industry as far as possible
Helical gear more than 25 degree or more, and the helical gear within 25 degree of helical angle often has one side tooth with the increase of angle
Shape and tooth alignment error increase, cause using when to rotate and reverse sound good on one side, it is bad on one side.However large helix angle gear is excellent
Put such as: good registration, bigger bearing capacity lead to these big spiral shells due to the limitation and unstable product quality of production
Swing angle gear is using very limited.A kind of mold is urgently thus needed, normal spiral angle beveled wheel can not only be produced, can more be produced
Wide-angle spiral angle beveled wheel, and improve product quality quality and stability.
Summary of the invention
It is an object of the present invention in view of the deficiencies of the prior art, provide a kind of injection molding helical angle helical gear mold.
Present invention technical solution used for the above purpose is.
A kind of helical gear mold of injection molding helical angle, including mold core, the mold core front is provided with helical teeth mold core, described oblique
Tooth mold core be equipped with helical angle helical teeth corresponding with spiral angle beveled wheel product, one with spiral angle beveled wheel in the same direction with the same of helical angle
To same helical angle external gear, and setting it is described in the same direction with outside helical angle external gear with described in the same direction with helical angle external gear
The same helical angle internal gear in the same direction that matches of gear, it is described that there is a development length with helical angle external gear in the same direction, it is described
It can be moved forward and backward, the mould with the development length rotation of helical angle external gear in the same direction around described with helical angle internal gear in the same direction
Core is fixedly connected with helical angle external gear with helical angle external gear and by fastener with described in the same direction in the same direction across described, a mould
Has push plate, the mold core penetrates the middle part of the mould ejection plate, and second push rod fixed with the mould ejection plate is described in the same direction
Directly or indirectly pass through second push rod with helical angle internal gear and acts on the mould ejection plate to push the mold to push away
Plate.
Preferably, further include side plate, there is a first step hole in the middle part of the side plate, a first bearing is arranged described
In first step hole, the mold core rear portion pass through the side plate and with the first bearing with connect.
It preferably, further include a pair of of square iron before the side plate is set, being provided between the pair of square iron can front and back
Movable side needle plate sets face needle plate before the needle plate of side, described to penetrate in the middle part of the side needle plate and extend with helical angle external gear in the same direction
It is described to be fixed in the same direction with helical angle internal gear across described in the same direction with one sufficient length of extension after helical angle internal gear
In the middle part of the face needle plate.
Preferably, B plate is equipped with before the square iron 13, set before the B plate can fore-aft travel mould ejection plate, the B plate
Middle part is equipped with a second step hole, and a second bearing is arranged in second step hole, and a cushion block penetrates setting and pushes away in the mold
In the middle part of plate, the mold core penetrates the cushion block, second bearing, the B plate, described in the same direction with helical angle external gear, described
Side plate, the first bearing, mold core can rotate in first bearing and be cooperated by second bearing firm.
Preferably, further include the first push rod, first push rod penetrate side plate and can push side needle plate, first push rod
By hydraulic, vapour pressure or Mechanical course.
Preferably, second push rod is arranged before the face needle plate, second push rod penetrate after the B plate with it is described
Mould ejection plate is fixed.
The solution have the advantages that spiral angle beveled wheel product while mould ejection plate is released, is revolved because mold core is synchronous
Turn, when pushing away product, the helical gear tooth form teeth directional of helical angle is not by radial force, so as to produce the spiral angle beveled wheel of micron order.
The invention is specifically described with reference to the accompanying drawing.
Detailed description of the invention
Fig. 1 is the mold schematic diagram of the embodiment of the present invention.
Fig. 2 is the mould part structure sectional view of the embodiment of the present invention.
Fig. 3 is the mould part Structure explosion diagram of the embodiment of the present invention.
Wherein corresponding relationship is the first push rod 11, side plate 12, square iron 13, B plate 14, mould ejection plate 15, the first push rod 16,
Side needle plate 21, face needle plate 22, in the same direction with helical angle internal gear 23, in the same direction with helical angle external gear 24, first bearing 25, the second axis
Hold 26, cushion block 27, mold core 28, helical teeth mold core 281, spiral angle beveled wheel 30.
Specific embodiment
Referring to attached drawing 1-3, provide a kind of injection molding helical angle helical gear mold, for being molded spiral angle beveled wheel product
30, the helical teeth mold core 281 of molding spiral angle beveled wheel product 30, helical teeth mould are directly used in including mold core 28 and 28 front of mold core
Helical angle helical teeth, oblique with the helical angle of spiral angle beveled wheel product 30 before there is core 281 spiral angle beveled wheel product 30 to shrink
Tooth is adapted.
Side plate 12 has a first step hole in the middle part of side plate 12, and a first bearing 25 is arranged in the first step hole,
28 rear portion of mold core passes through and side plate 12 and connect with first bearing 25, a pair of of setting of square iron 13 before side plate 12, this to square iron 13 it
Between be provided with can fore-aft travel side needle plate 21, set face needle plate 22 before side needle plate 21, one with the same helical angle in the same direction of helical teeth mold core 281
Same helical angle external gear 24 in the same direction penetrate the middle part of side needle plate 21 and extend across and extend a sufficient length after face needle plate 22, one
With helical teeth mold core 281 in the same direction with the same helical angle internal gear 23 in the same direction of helical angle penetrate the middle part of face needle plate 22 and with same spiral shell in the same direction
Swing angle external gear 24 carries out interior external tooth cooperation, in the same direction with helical angle internal gear 23 around in the same direction with moving before and after helical angle external gear 24
It is dynamic, B plate 14 is set before square iron 13, set before B plate 14 can fore-aft travel mould ejection plate 15, be equipped with second step hole in the middle part of B plate 14, one
Second bearing 26 is arranged in the second step hole, and a cushion block 27 penetrates setting at 15 middle part of mould ejection plate, and mold core 28 penetrates pad
Block 27, second bearing 26, B plate 14, in the same direction with helical angle external gear 24, side plate 12, first bearing 25, mold core 28 can be in first axle
It holds and rotates in 25 and consolidated by the cooperation of second bearing 26.Pass through the fastening such as screw with helical angle external gear 24 and mold core 28 in the same direction
Part fastening.First push rod 11, penetrate side plate 12 and can push side needle plate 21, the first push rod 11 is by hydraulic, vapour pressure or Mechanical course.
The second push rod 16 is equipped with before face needle plate 22, the second push rod 16 is fixed after penetrating B plate 14 with mould ejection plate 15.
The workflow of the embodiment of the present invention is: the first push rod 11 pushes forward side under external force after the completion of injection molding
Needle plate 21, face needle plate 22 are fixed on the same helical angle internal gear 23 in the same direction at 22 middle part of face needle plate simultaneously since face needle plate 22 moves forward
Forward drives and rotates in the same direction with helical angle external gear 24, and turns simultaneously with the mold core 28 fixed in the same direction with helical angle external gear 24
It is dynamic.The second push rod 16 for being located at face needle plate 22 also pushes mould ejection plate 15, and 30 product of spiral angle beveled wheel product is in mould ejection plate
15 while release, because of 28 synchronous rotary of mold core, when pushing away product, the internal tooth of spiral angle beveled wheel product 30 not by radial force, from
And the spiral angle beveled wheel product 30 of micron order can be released.
Identical principle can also produce the spiral external gear product of micron order, it is only necessary to the external tooth of helical teeth mold core 281
It is changed to internal tooth, this is the common knowledge of this field, and this will not be repeated here.
Identical principle can also produce the method for forming screw of micron order, the products such as screw rod.
Certainly, the invention can also have other transformation, it is not limited to which above embodiment, those skilled in the art are had
Standby knowledge, can also various changes can be made without departing from the inventive concept of the premise, such variation should all fall in this hair
In bright protection scope.
Claims (6)
1. a kind of helical gear mold of injection molding helical angle, which is characterized in that including mold core, the mold core front is provided with helical teeth mould
Core, the helical teeth mold core are equipped with helical angle helical teeth corresponding with spiral angle beveled wheel product, and one is same in the same direction with spiral angle beveled wheel
The same helical angle external gear in the same direction of helical angle, and setting it is described in the same direction with outside helical angle external gear with it is described in the same direction same spiral shell
The same helical angle internal gear in the same direction that the gear of swing angle external gear matches, it is described that there is an extension with helical angle external gear in the same direction
Length, it is described to be rotated and front and back shifting with the development length of helical angle external gear in the same direction around described with helical angle internal gear in the same direction
Dynamic, the mold core is fixed with helical angle external gear with helical angle external gear and by fastener with described in the same direction in the same direction across described
Connection, a mould ejection plate, the mold core penetrate the middle part of the mould ejection plate, and one fixed with the mould ejection plate second pushes away
Bar, it is described directly or indirectly to pass through second push rod with helical angle internal gear in the same direction and act on the mould ejection plate to push
The mould ejection plate.
2. the helical gear mold of injection molding helical angle according to claim 1, which is characterized in that it further include side plate, it is described
There is a first step hole, a first bearing is arranged in the first step hole, and the mold core rear portion passes through institute in the middle part of side plate
State side plate and with the first bearing with connect.
3. the helical gear mold of injection molding helical angle according to claim 2, which is characterized in that further include being arranged in the side
A pair of of square iron before plate, be provided between the pair of square iron can fore-aft travel side needle plate, set face needle plate before the needle plate of side, it is described
It penetrates in the middle part of the side needle plate and extends through described in the same direction with extending one after helical angle internal gear with helical angle external gear in the same direction
A sufficient length, it is described to be fixed in the middle part of the face needle plate with helical angle internal gear in the same direction.
4. the helical gear mold of injection molding helical angle according to claim 3, which is characterized in that be equipped with B before the square iron 13
Plate, set before the B plate can fore-aft travel mould ejection plate, the middle part of the B plate is equipped with a second step hole, and a second bearing is set
It sets in second step hole, a cushion block, which penetrates, to be arranged in the middle part of the mould ejection plate, and the mold core penetrates the cushion block, described the
Two bearings, the B plate, described in the same direction with helical angle external gear, the side plate, the first bearing, mold core can be in first bearing
Interior rotation is simultaneously cooperated firm by second bearing.
5. the helical gear mold of injection molding helical angle according to claim 4, which is characterized in that further include the first push rod, institute
State the first push rod penetrate side plate and can push side needle plate, first push rod is by hydraulic, vapour pressure or Mechanical course.
6. the helical gear mold of injection molding helical angle according to claim 4, which is characterized in that the second push rod setting exists
Before the face needle plate, second push rod is fixed after penetrating the B plate with the mould ejection plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811124409.9A CN109130094A (en) | 2018-09-26 | 2018-09-26 | A kind of helical gear mold of injection molding helical angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811124409.9A CN109130094A (en) | 2018-09-26 | 2018-09-26 | A kind of helical gear mold of injection molding helical angle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109130094A true CN109130094A (en) | 2019-01-04 |
Family
ID=64812582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811124409.9A Pending CN109130094A (en) | 2018-09-26 | 2018-09-26 | A kind of helical gear mold of injection molding helical angle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109130094A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111231243A (en) * | 2020-02-12 | 2020-06-05 | 东莞力浦精密电子有限公司 | Injection mold |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4139176A (en) * | 1976-07-29 | 1979-02-13 | Wundsch Johannes G | Mold, for screw-threaded articles |
| US4280549A (en) * | 1978-04-08 | 1981-07-28 | Keystone International, Inc. | Apparatus and process for die-casting |
| CN103507219A (en) * | 2013-09-24 | 2014-01-15 | 佛山市南海华达模具塑料有限公司 | Mold for injection molding of parts with internal threads |
-
2018
- 2018-09-26 CN CN201811124409.9A patent/CN109130094A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4139176A (en) * | 1976-07-29 | 1979-02-13 | Wundsch Johannes G | Mold, for screw-threaded articles |
| US4280549A (en) * | 1978-04-08 | 1981-07-28 | Keystone International, Inc. | Apparatus and process for die-casting |
| CN103507219A (en) * | 2013-09-24 | 2014-01-15 | 佛山市南海华达模具塑料有限公司 | Mold for injection molding of parts with internal threads |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111231243A (en) * | 2020-02-12 | 2020-06-05 | 东莞力浦精密电子有限公司 | Injection mold |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190104 |
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| WD01 | Invention patent application deemed withdrawn after publication |