CN1364689A - Injecting molding die - Google Patents
Injecting molding die Download PDFInfo
- Publication number
- CN1364689A CN1364689A CN01129494A CN01129494A CN1364689A CN 1364689 A CN1364689 A CN 1364689A CN 01129494 A CN01129494 A CN 01129494A CN 01129494 A CN01129494 A CN 01129494A CN 1364689 A CN1364689 A CN 1364689A
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- CN
- China
- Prior art keywords
- rotary part
- molding die
- template
- rotation
- injecting molding
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- 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
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- 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
- B29C45/2681—Moulds with rotatable mould parts
-
- 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
- B29C45/2602—Mould construction elements
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Gears, Cams (AREA)
Abstract
The present invention relates to an injection mold comprising rotary members mounted in a plurality of molds in a freely rotatable manner so as to be rotated when the molded article having a molding space formed to the inner surface thereof is taken out and is equipped with a position restoration means for restoring the rotary members to a position set at first when a plurality of the molds are united and a rotation restriction means for restricting the excessive rotation of the rotary members. The injection mold is capable of easily manufacturing a molded article of which the outer surface shape is complicated like a helical gear and constituted so as to always keep a position, where a tooth shape is formed, constant.
Description
The present invention relates to a kind of injecting molding die, relate to the helical gear injecting molding die of a kind of manufacturing in detail.
In general, at inner formation of injecting molding die and the corresponding formingspace of goods profile,, mutual separable polylith template merging is formed in order can externally to take out the formed products of making at formingspace.
In such mould, when the formed products of shaping complex contour as helical gear, for it easily being taken out from mould, in mould die sinking process, the part of mould is set at the mechanism that can rotate, and the spy that this Coinjection molding apparatus has been disclosed in Japan opens on 2000-167873 number.
But, this mould in the past, when long-term use, when the tooth portion molded component that can rotate freely setting at mould inside is worn, in injection process, because flow phenomenon takes place at tooth portion molded component place, so the problem of making the formed products misalignment is arranged.
In addition, because the tooth portion molded component of this mould is in the state that rotates freely, the position that forms profile of tooth changes often, makes the quality inequality of formed products.That is, the rotation for tooth portion molded component is arranged, the problem that the profile of tooth position of formed products can change when injection.
The present invention is in order to solve the above problems a little, and its purpose is to provide a kind of injecting molding die, not only can easily make the helical gear formed products that the center of sening as an envoy to correctly aligns, and the shaping position that makes the formed products profile of tooth when injection is always for certain.
In order to reach described purpose, injecting molding die of the present invention, comprise that being contained in polylith template rotary part inner and that can rotate freely makes at inner face and form formingspace and can rotate when taking out formed products, it is characterized by, have and when described polylith template matched moulds, can make described rotary part be reset to the resetting-mechanism that sets the position and limit the rotation limiting mechanism that described rotary part is crossed rotation.
In addition, described resetting-mechanism comprises the conical regulating tank that is formed on described rotary part outside and enters the adjusting rod of described regulating tank that when described mould matched moulds the front end of described adjusting rod is a taper shape.
In addition, described rotation limiting mechanism is included on the described rotary part slotted hole that forms and form along the direction of rotation of described rotary part and is fixed on the described template and is in the alignment pin that can enter described slotted hole state.
In addition, described rotation limiting mechanism comprises along the direction of rotation of described rotary part at the slotted hole that forms on the described template with entering described slotted hole state and be fixed on alignment pin on the described rotary part.
Below accompanying drawing is carried out simple declaration.
The formed products stereogram of Fig. 1 for producing with injecting molding die of the present invention.
Fig. 2 is the cutaway view of injecting molding die of the present invention.
Fig. 3 is the cutaway view of injecting molding die gripper shoe released state of the present invention.
Fig. 4 is the cutaway view of injecting molding die the 2nd template of the present invention and the 1st template released state.
Fig. 5 is the cutaway view of injecting molding die formed products separating action of the present invention.
Fig. 6 is the vertical view of injecting molding die the 2nd rotary part of the present invention.
Among the figure: 10-the 1st template, 11-the 1st joint portion, 13-the 1st rotary part, 13a-the 1st engagement groove, 13c-the 1st helical gear profile of tooth, 14-the 1st retaining ring, 20-the 2nd template, 21-die cavity, the 22-support component, 22a-the 2nd engagement groove, 23-the 2nd rotary part, 23a-the 2nd joint portion, 23c-the 2nd helical gear profile of tooth, 24-the 2nd retaining ring, 30-gripper shoe, the 31-adjusting rod, 32-regulating tank, 34-slotted hole, the 35-alignment pin, 40-core, 50-knock-pin.
Embodiment
Below, with reference to accompanying drawing desirable embodiment of the present invention is elaborated.
Fig. 1 is the helical gear stereogram of more piece that is shaped and with injecting molding die of the present invention.As shown in the figure, more piece helical gear formed products 1 has the 1st different gear part 2 of appearance and size and the 2nd gear part 3, and central authorities have the cavity 4 of wearing a usefulness.At this moment, for not doing relative rotation, the inner face of cavity 4 is made polygonal with axle.
For making the injecting molding die of the present invention of such formed products, as shown in Figure 2, portion comprises that forming the formingspace of making formed products 1 also can mutually combine and the 1st tabular template 10 and the 2nd template 20 of separating within it.And, be provided with the gripper shoe 30 that supports the 2nd template 20 in the outside of the 2nd template 20.
In addition, on the 1st template 10, be provided with the 1st rotary part 13, on the 2nd template 20, be provided with the 2nd rotary part 23 and the support component 22 that supports the 2nd rotary part 23 for the 2nd gear part 3 of the described formed products 1 that is shaped for the 1st gear part 2 of the described formed products 1 that is shaped.
Be provided with core 40 into shaping formed products 1 cavity 4 in the central authorities of the 1st template 10, core 40 passes the central portion that the 1st template 10 and long distance extend to the 2nd template 20.At this moment, in the outside of the core 40 that extends to the 2nd template 20 1 sides, formed polygonal 41 for the cavity 4 of the formed products 1 that is shaped.In addition, on the 1st template 10, be provided with and give prominence to the 1st joint portion 11 that has taper in die cavity 21 1 sides and the outside of the 2nd template 20, on the 1st joint portion 11 in conjunction with described the 1st rotary part 13 that can rotate freely.So, on the inner face of the 1st rotary part 13 1 sides, be provided with the 1st engagement groove 13a with the corresponding taper of shape of the 1st joint portion 11,, be provided with and keep the 1st retaining ring 14 that the 1st rotary part 13 can rotate on the 1st joint portion 11 in the outside of the 1st rotary part 13.At this moment, the outside at the inner face and the 1st rotary part 13 of the 1st retaining ring 14 is formed with the hook 14a, the 13b that hook mutually and support, and the 1st retaining ring 14 is fixed on the 1st template 10 by a plurality of set bolts 15.And on the inner face of the 1st rotary part 13, form the 1st helical gear profile of tooth 13c of inclination of the 1st gear part 2 of the described formed products 1 of promising shaping.
The circular plate type support component 22 that supports the 2nd rotary part 23 is set on the die cavity 21 of the 2nd template 20.This support component 22, portion has step-like step in the central, and encases and supporting the periphery of the 1st rotary part 13, simultaneously, also can put into the 2nd rotary part 23.And, on the inner face of the support component 22 of putting into the 2nd rotary part 23, be provided with the 2nd engagement groove 22a of the taper of stably supporting the 2nd rotary part 23 outsides, outside at the 2nd rotary part 23 of institute's combination is provided with the 2nd joint portion 23a corresponding with the 2nd engagement groove 22a, that the outside is taper.In addition, in the periphery of the 2nd rotary part 23, be provided with and keep the 2nd retaining ring 24 that the 2nd rotary part 23 can rotate freely bonding state.At this moment, in the outside of the 2nd rotary part 23, be formed with the stairstepping hook 23b that can hook and be supported on the 2nd retaining ring 24, the 2nd retaining ring 24 is fixed on the support component 22 by set bolt 25.And on the inner face of the 2nd rotary part 23, form the 2nd helical gear profile of tooth 23c of inclination of the 2nd gear part 3 of the described formed products 1 of promising shaping.
Here, at the 1st joint portion 11 of the 1st template 10 and the 1st engagement groove 13a of the 1st rotary part 13, and the 2nd engagement groove 22a of the 2nd joint portion 23a of the 2nd rotary part 23 and support component 22 is taper, this is owing to need to strengthen the mutual combination of each component parts when the mould matched moulds, simultaneously, the center of the 1st rotary part 13 and the 2nd rotary part 23 will with the cause of the correct centering in center of core 40.And, have the mould of this spline structure, when die sinking, can slyness open each other, the 1st rotary part 13 and the 2nd rotary part 23 also can slick and sly rotate.
In addition, on the 2nd template 20, be provided with the guiding molten resin and enter the runner 27 and the cast gate 28 of formingspace inside, and be formed with the core engagement groove 29 that makes mosaic process 42 embeddings that are arranged on core 40 ends.In addition, around core 40, be provided with the knock-pin 50 of rod, when the mould die sinking, for formed products 1 is ejected and takes out from mould, knock-pin 50 is set up and passes the 1st template 10 and can freely advance and retreat.
In addition; the present invention; when the mould matched moulds, return back to usually on the position of initial setting in order to make the 2nd rotary part 23, the position with the position of the 2nd gear part 3 that makes formed products 1 and cavity 4 that inner face is polygonal formed products 1 is in the resetting-mechanism that consistent state is shaped usually.
Resetting-mechanism is by on the gripper shoe 30 that is fixed on the 2nd template 20 outsides and pass adjusting rod 31 and the regulating tank 32 involutory with adjusting rod 31 front ends, that be formed on the 2nd rotary part 23 that the 2nd template 20 pushes up on the 2nd rotary part 23 and constitute.At this moment, the front end of adjusting rod 31 and regulating tank corresponding with it 32 all form taper shape.This structure, be with rotation, make the center of regulating tank 32 and the center of adjusting rod 31 be in the state that departs from by the 2nd rotary part 23, and when the front end of adjusting rod 31 enters regulating tank 32, along with the rotation of the 2nd rotary part 23, the center of regulating tank 32 is consistent with the center of adjusting rod 31.Like this, the position to initial setting can be restored in the position of the 2nd rotary part 23, therefore can make the position of the 2nd helical gear profile of tooth 23c be generally consistent state with the outside of the core 40 that is made of polygonal 41.
In addition, between the 2nd rotary part 23 and the 2nd template 20, be provided with to preventing the 2nd rotary part 23 rotation limiting mechanism of rotation excessively.This rotates limiting mechanism, as shown in Figure 6, and by the slotted hole 34 that forms in the long distance of the 2nd rotary part 23 upper edge direction of rotation with enter slotted hole 34 and be fixed on alignment pin 35 formations on the 2nd template 20.This structure is taken out in the process of formed products 1 in the mould die sinking, can make the 2nd rotary part 23 that rotation did not take place, and when mould once more during matched moulds, can make the front end of adjusting rod 31 enter regulating tank at an easy rate.That is, make the front end of adjusting rod 31 usually in the scope of regulating tank 32.
Below, the die sinking action of mould described when the injecting molding die of the present invention that use is had a this structure was produced formed products.
In the time of the 1st template 10 and the 2nd template 20 and gripper shoe 30 matched moulds, outside by core 40, inner face with the 1st helical gear profile of tooth 13c of the 1st rotary part 13, with the inner face of the 2nd helical gear profile of tooth 23c of the 2nd rotary part 23, and the 1st joint portion 11 and the 2nd template 20 that is provided with cast gate 28 form the whole formingspace of formed products 1.At this moment, because the 1st rotary part 13 and the 2nd rotary part 23 combine with the 2nd engagement groove 22a's with the 1st engagement groove 13a, the 2nd joint portion 23a by the 1st joint portion 11 with taper, the center of keeping its center and core 40 is in the state that correctly aligns.In addition, at this moment, enter the regulating tank 32 of the 2nd rotary part 23 along with the front end that is fixed on the adjusting rod 31 on the gripper shoe 30, make 23 rotations of the 2nd rotary part, regulate its position, therefore, the state consistency that sets of the position of the 2nd helical gear profile of tooth 23c in the 2nd rotary part 23 and position by polygonal 41 core that constitutes 40 outsides.Then,, make institute's molten resin supplied filling enter the inside of formingspace by runner 27 and cast gate 28 with this state, and along with solidifying of molten resin produces formed products 1.
When the good formed products 1 that is shaped was taken out to the outside, at first as shown in Figure 3, gripper shoe 30 was separated with the 2nd template 20.At this moment, because the adjusting rod 31 that the one end is fixed on the gripper shoe 30 moves jointly with gripper shoe 30, the front end of adjusting rod 31 detaches from the regulating tank 32 of the 2nd rotary part 23.That is, the 2nd rotary part 23 is in the state that rotates freely.
With this state, as shown in Figure 4, the 2nd template 20 is separated with the 1st template 10.At this moment, cast gate 28 parts that are connected with formed products 1 are separated, and the 2nd rotary part 23 separates along the serrated edge of the 2nd gear part 3 of formed products 1 rotation limit, and the 2nd gear part 3 of formed products 1 is exposed to the outside.In addition, in the separation process of the 2nd template, because the 2nd rotary part 23 of rotation prevents that by the rotation limiting mechanism that is made of slotted hole 34 and alignment pin 35 it from crossing rotation, so, when the mould matched moulds, the front end that can keep adjusting rod 31 is in the state that enters regulating tank 32.
Then, as shown in Figure 5, when knock-pin 50 advances when on one side formed products 1 being ejected to formed products 1 one sides on one side, along with the rotation of the 1st rotary part 13, formed products 1 is deviate to the outside at an easy rate.That is, formed products 1 ejects when the 2nd template 20 1 sides are deviate from along with being ejected bar 50, and the rotation of sliding on the screw inclined plane of the 1st gear part 2 of formed products 1 of the 1st rotary part 13 is so be easy to take out formed products 1.
As mentioned above, injecting molding die of the present invention, when the mould matched moulds, because the 1st rotary part and the 2nd rotary part are in state that center correctly align with the 1st engagement groove and the 2nd joint portion with combining of the 2nd engagement groove by the 1st joint portion with taper, so, the center of helical gear formed products is correctly aligned and can take out formed products at an easy rate.
In addition, the present invention when the mould matched moulds, makes the 2nd rotary part can return back to the position that sets usually by the resetting-mechanism that is made of adjusting rod and regulating tank, so the formation position that can keep the formed products profile of tooth when injection is always for certain.
Claims (6)
1. injecting molding die, comprise that being contained in polylith template rotary part inner and that can rotate freely makes at inner face and form formingspace and can rotate when taking out formed products, it is characterized in that, have and when described polylith template matched moulds, can make described rotary part be reset to the resetting-mechanism of the original position that sets and limit the rotation limiting mechanism that described rotary part is crossed rotation.
2. according to the described injecting molding die of claim 1, it is characterized in that described resetting-mechanism comprises the conical regulating tank that is formed on described rotary part outside and enter the adjusting rod of described regulating tank when described mould matched moulds.
3. according to the described injecting molding die of claim 2, it is characterized in that the front end of described adjusting rod is conical.
4. according to the described injecting molding die of claim 1, it is characterized in that, also comprise and when described mould matched moulds or die sinking, limit the rotation limiting mechanism that described rotary part is crossed rotation.
5. according to the described injecting molding die of claim 4, it is characterized in that, described rotation limiting mechanism comprises along the direction of rotation of described rotary part at the slotted hole that forms on the described rotary part with entering described slotted hole state and be fixed on alignment pin on the described template.
6. according to the described injecting molding die of claim 4, it is characterized in that, described rotation limiting mechanism comprises along the direction of rotation of described rotary part at the slotted hole that forms on the described template with entering described slotted hole state and be fixed on alignment pin on the described rotary part.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020010003185A KR100683188B1 (en) | 2001-01-19 | 2001-01-19 | Mold for injection molding |
| KR3185/2001 | 2001-01-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1364689A true CN1364689A (en) | 2002-08-21 |
Family
ID=19704860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN01129494A Pending CN1364689A (en) | 2001-01-19 | 2001-06-21 | Injecting molding die |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2002225093A (en) |
| KR (1) | KR100683188B1 (en) |
| CN (1) | CN1364689A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102490320A (en) * | 2011-12-09 | 2012-06-13 | 常州鑫鹏工具制造有限公司 | Mold |
| CN105415587A (en) * | 2015-12-24 | 2016-03-23 | 大连銮艺精密模塑制造有限公司 | Plastic mold capable of achieving separation from oblique teeth through supporting plate floating device |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007245585A (en) * | 2006-03-16 | 2007-09-27 | Ricoh Co Ltd | Die apparatus for helical gear and helical gear manufactured thereby |
| JP4846631B2 (en) * | 2007-03-14 | 2011-12-28 | 株式会社リコー | Resin Helical Gear Mold and Resin Helical Gear Molded Using the Mold |
| KR101223582B1 (en) * | 2009-10-09 | 2013-01-17 | 에이테크솔루션(주) | Method that reinstate helical gear-ring using groove and pin and helical gear injection molding device that have groove and pin |
-
2001
- 2001-01-19 KR KR1020010003185A patent/KR100683188B1/en active IP Right Grant
- 2001-06-21 CN CN01129494A patent/CN1364689A/en active Pending
- 2001-06-21 JP JP2001188752A patent/JP2002225093A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102490320A (en) * | 2011-12-09 | 2012-06-13 | 常州鑫鹏工具制造有限公司 | Mold |
| CN105415587A (en) * | 2015-12-24 | 2016-03-23 | 大连銮艺精密模塑制造有限公司 | Plastic mold capable of achieving separation from oblique teeth through supporting plate floating device |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100683188B1 (en) | 2007-02-15 |
| KR20020061997A (en) | 2002-07-25 |
| JP2002225093A (en) | 2002-08-14 |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: AI-TECH TECHNOLOGY DEVELOPMENT CO., LTD. Free format text: FORMER OWNER: SAMSUNG ELECTRONICS CO., LTD Effective date: 20020419 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20020419 Address after: Gyeonggi Do, South Korea Applicant after: Egypt Tektronix Technology Development Co Ltd Address before: Gyeonggi Do, South Korea Applicant before: Samsung Electronics Co., Ltd. |
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| C06 | Publication | ||
| PB01 | Publication | ||
| AD01 | Patent right deemed abandoned | ||
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |