CN1283441C - Forming method for synthetic resin handle - Google Patents
Forming method for synthetic resin handle Download PDFInfo
- Publication number
- CN1283441C CN1283441C CN 03150400 CN03150400A CN1283441C CN 1283441 C CN1283441 C CN 1283441C CN 03150400 CN03150400 CN 03150400 CN 03150400 A CN03150400 A CN 03150400A CN 1283441 C CN1283441 C CN 1283441C
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- mould
- pin
- installing hole
- synthetic resin
- moulding
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Abstract
To provide a method for molding a handle made of a synthetic resin generating no weldline, and the handle excellent in mechanical strength without damaging its aesthetic appearance. In the method for molding the handle made of the synthetic resin having an attaching hole, a molten synthetic resin raw material 3 is charged in a mold 1 from the gate 2 of the mold 1 and a pin 4 for forming the attaching hole is moved in the internal direction of the mold 1 to push the resin raw material 3 remaining in the vicinity of the gate 2 in the mold 1 and further moved in the internal direction of the mold 1 to mold the attaching hole. (C)2004,JPO&NCIPI.
Description
Technical field
The present invention relates to a kind of forming method of synthetic resin handle, particularly have the door leaf that is used for household, furniture, tame electrical article or vehicle etc. and drawer, suitcase or tool box etc. be container for conveying or cooking appliance, feeder etc., in particular for the forming method of the synthetic resin handle of the installing hole of building materials such as door, sliding door, sliding door or drawer.
Background technology
Synthetic resin handle (handle or knob) is many to be installed on door leaf, the drawer etc. with metal bolt or nut.Therefore, if carry out the moulding of threaded portion,, need have the installing hole that is used to assemble negative thread or pin thread after the handle moulding then because the problem of intensity with synthetic resin.For example, the known handle of registering No. 3045509 communique (first page) in Japanese Utility Model on the books with reference to summary.
Therefore, in the forming method of synthetic resin handle, thereby adopt the juts such as pin in mould, be provided for the moulding installing hole, in this mould, inject the method that resin raw material is shaped to handle that fuses into from cast gate with installing hole.
With regard to the forming method of the synthetic resin handle of prior art, be that the molten resin raw material that fuses into that is injected by cast gate is shunted by the projection that is used for the moulding installing hole, walk around this projection after, resin raw material is collaborated once again.But in the time of till the interflow, the temperature of resin raw material reduces, and the resin raw material behind the interflow can not fuse fully, and therefore residual have a vestige of fusion again that is called as melt run.Therefore has near the handle problem that mechanical strength reduces melt run.
In addition, particularly with sneaked into metal powders such as aluminium powder, glossiness metal-resin is under the situation of raw material, also might produce lustre lacking uniformity and diminish problem attractive in appearance.Therefore,, just must determine the position of cast gate, thereby reduce the free degree of cast gate design if will make melt run not obvious.And, after the moulding, must remove near the cull cast gate, be called as the back processing of excising cast gate.
Summary of the invention
For address the above problem further investigate after, the result, being characterized as of the forming method of the synthetic resin handle with installing hole of Cai Yonging in the present invention: the synthetic resin raw material of in above-mentioned mould, filling fusion by the cast gate of mould, the pin that is used in the moulding installing hole moves to the mould inside direction, and near the above-mentioned resin raw material that will remain in the above-mentioned cast gate is pressed in the mould, above-mentioned pin is further moved to the mould inside direction, thereby be shaped to above-mentioned installing hole.
After in mould, filling the molten resin raw material, move to the mould inside direction by the pin that is used in the moulding installing hole, and near the above-mentioned resin raw material that will remain in the above-mentioned cast gate is pressed in the mould, excises cast gate.Above-mentioned bolt is moved to the mould inside direction, thereby make the installing hole moulding.Therefore, owing to resin raw material does not need to shunt by projections such as pins, so, near installing hole melt run can not appear.In addition since when moulding the excision cast gate, so needn't remove near the moulding resin that remains in the cast gate by back processing after the moulding.
Also can adopt the forming method of the synthetic resin handle with installing hole as described below in addition, it is characterized by: the synthetic resin raw material of in above-mentioned mould, filling fusion from the cast gate of mould, first pin is moved to the mould inside direction, thereby make the installing hole moulding; And then make outer insert in first pin, can move to mould inside to second pin that the mould inside direction moves, near the above-mentioned resin raw material that remains in the above-mentioned cast gate is pressed in the mould, make above-mentioned installing hole moulding.
Also can adopt the forming method of the synthetic resin handle with installing hole as described below, it is characterized by: the synthetic resin raw material of in above-mentioned mould, filling fusion from the cast gate of mould, second pin is moved to the mould inside direction, near the above-mentioned resin raw material that remains in the above-mentioned cast gate is pressed in the mould; And then insert in making in second pin, can move to mould inside to first pin that the mould inside direction moves, make above-mentioned installing hole moulding.
The structure that is used for the pin of moulding installing hole is: this pin is split into first pin that is used for the moulding installing hole and is used for being pressed into second pin in the mould with remaining near the cast gate resin raw material, insert in above-mentioned first pin in above-mentioned second pin, move to the mould inside direction ad lib between can be mutually.
For this reason, first pin is moved to the mould inside direction, make the installing hole moulding, then, move to the mould inside direction, near the resin raw material that remains in the cast gate is pressed in the mould, thereby make the installing hole moulding by making second pin.Otherwise, second pin is moved to the mould inside direction, near the resin raw material that remains in the cast gate is pressed in the mould, then, first pin is moved to the mould inside direction, thereby make the installing hole moulding.
In addition, because the degree of depth of first and second pin of giving as security the moulding installing hole is changed, moulding has the moulding product of the installing hole of different depth so can exchange bolt.
In addition, because of the compression distance of first and second pins that can be used in the installing hole moulding changes, just can be shaped to the different moulding product of the installing hole degree of depth so can change pin.
And the forming method of synthetic resin handle of the present invention also is applicable to the moulding when above-mentioned synthetic resin handle is building materials usefulness synthetic resin handle.
Under situation about handle being installed on the building materials such as door, sliding door, sliding door or drawer, in open and close door etc., especially near installing hole, will be subjected to mechanical load.And the handle of moulding does not have melt run by the present invention, and the mechanical strength excellence is so be applicable to the building materials handle.
It is the method for metal-resin that the forming method of synthetic resin handle also can adopt above-mentioned synthetic resin raw material.
The metal-resin institute moulding that the handle that has is served as reasons and had gloss.Metal-resin is the resin that is mixed with metal dusts such as aluminium in synthetic resin, because of the existence of this metal dust has gloss.Under the situation that produces melt run, can produce lustre lacking uniformity, therefore can influence attractive in appearance.So, although should make melt run not eye-catching during the position of decision cast gate, then there is not this necessity according to the present invention, so just increased the free degree that cast gate designs.Its result is exactly to pass through mould moulding simultaneously various products.
In addition, by the handle of forming method moulding of the present invention, except that the handle that is roughly " U " font (handle), also comprise being installed on being roughly circular knob on sliding door or the drawer etc.
The objective of the invention is to, the forming method that can not produce the synthetic resin handle of melt run is provided, thus provide mechanical strength good, without detriment to handle attractive in appearance.
Description of drawings
Fig. 1 (a) is the stereogram of the handle by the present invention's moulding;
Fig. 1 (b) is the stereogram of the knob by the present invention's moulding;
Fig. 2 is the concise and to the point generalized section at the main position of mould of forming method of the present invention;
Fig. 3 is the concise and to the point generalized section at the main position of mould of forming method of the present invention;
Fig. 4 is the concise and to the point generalized section at the main position of mould of forming method of the present invention;
Fig. 5 is the concise and to the point generalized section at the main position of mould of forming method of the present invention;
Fig. 6 is the concise and to the point generalized section at the main position of mould of another forming method of the present invention;
Fig. 7 is the concise and to the point generalized section at the main position of mould of another forming method of the present invention;
Fig. 8 is the concise and to the point generalized section at the main position of mould of another forming method of the present invention;
Fig. 9 is the concise and to the point generalized section at the main position of mould of another forming method of the present invention.
The specific embodiment
Below, with reference to the embodiment of description of drawings forming method of the present invention.Fig. 1 is the concise and to the point schematic perspective view of handle of the present invention and knob.Fig. 1 (a) is the schematic diagram of handle, at the two ends of the handle 10 that roughly is " U " font installing hole 11 is arranged.Fig. 1 (b) is the schematic diagram of knob, and knob 20 has roughly rounded shape, in the central authorities of one end installing hole 21 is arranged.As required, in installing hole 11,21, embed negative thread or pin thread after the moulding, then, handle 10 or knob 20 are installed on door, sliding door, sliding door or the drawer etc.
Fig. 2～5 are the concise and to the point generalized section at the main position of mould of forming method of the present invention, expression be near the installing hole moulding section.Be shaped to the mould of handle 10, be by be provided with will roughly be the cavity of " U " font connect, be shaped to the projection of installing hole 21 and with mould 1 sealing, this is omitted in the drawings at the other end.Because the installing hole of the other end does not need the shunting of resin raw material 3 promptly plastic, so, can as prior art, be the state that projection is set in mould 1.In addition, if be shaped to the mould of knob 21, thereby then connect the corresponding cavity of shape closed mould 1 with knob 21.
Fig. 2 represents that the resin raw material 3 of fusion is filled in the state of mould 1 inside by cast gate 2.Under this state, near residual resin raw material 3 cast gate 2, the pin 4 that forms installing hole does not insert in the mould 1.Moreover 3a is the metal powder of being sneaked in the resin raw material, the powder of metals such as use aluminium, thin slice etc.
Secondly, inner when mobile when pin 4 as shown in Figure 3 to mould 1, by pin 4 near residual resin raw materials 3 cast gate 2 are pressed into mould 1 inside.That is, near the resin raw material 3 the eliminating cast gate 2 is implemented the excision cast gate.
And, as shown in Figure 4,, then make the installing hole moulding by pin 4 when pin 4 when move in the precalculated position in mould.Thus, pin 4 is pressed in the resin raw material 3, makes the installing hole moulding, so, shunting, interflow that resin raw material 3 does not take place.Its result molds not have the moulding of melt run product.
And, as shown in Figure 5,, can finish the moulding product of the handle 10 that forms installing hole 11 if the demoulding is carried out to mould in the cooling back.In addition, also can carry out the demoulding in mould 1 by pin 4 is further moved.And the mobile available known Coinjection molding apparatus of the filling of resin raw material 3 or pin 4 carries out.
Fig. 6 is the concise and to the point generalized section at the main position of mould of another forming method of the present invention.In the drawings, the structure that is used for the pin 4 of moulding installing hole is: this pin is split into first pin 41 that is used for the moulding installing hole and is used for being pressed into second pin 42 in the mould with remaining near the cast gate resin raw material, insert in this first pin 41 in second pin 42, move to mould 1 internal direction ad lib between can be mutually.
As shown in Figure 6, in mould 1, behind the potting resin raw material 3, at first, as shown in Figure 7, make second pin 42, be pressed into mould 1 inside remaining near cast gate 2 resin raw materials 3 to mould 1 inner moving.Then, as shown in Figure 7, make first pin 41 again, make the installing hole moulding to mould 1 inner moving.As shown in Figure 5, after carrying out mold releasability after the cooling, then finish the moulding product of the handle 10 that forms installing hole 11.
Otherwise, as shown in Figure 9, also can at first make first pin 41 to mould 1 inner moving, after the installing hole moulding, make second pin 42 again to mould 1 inner moving, be pressed into mould 1 inside with remaining near cast gate 2 resin raw materials 3, make the installing hole moulding.
In addition, in Fig. 8 that the expression moulding finishes, compare the degree of depth that pin 4 is pressed into Fig. 5 more shallow, but also can be pressed into degree identical with Fig. 5, because of the compression distance that can be used in first and second pins 41,42 of installing hole moulding changes, just can be shaped to the different moulding product of the installing hole degree of depth so can change pin 4.
As mentioned above, forming method of the present invention is, in above-mentioned mould, fill the synthetic resin raw material of fusion from the cast gate of mould, the pin that is used in the moulding installing hole moves to the mould inside direction, near the above-mentioned resin raw material that remains in the above-mentioned cast gate is pressed in the mould, thereby above-mentioned pin is further moved so that the method for above-mentioned installing hole moulding to the mould inside direction, therefore, can not produce the synthetic resin handle of melt run near may be molded to installing hole, thus can provide mechanical strength good, without detriment to handle attractive in appearance.
Claims (3)
1. the forming method with synthetic resin handle of installing hole is characterized in that,
In described mould, fill the synthetic resin raw material of fusion from the cast gate of mould, first pin is moved to the mould inside direction, thereby make the installing hole moulding;
And then make outer insert in first pin, can move to mould inside to second pin that the mould inside direction moves, near the described resin raw material that remains in the described cast gate is pressed in the mould, make described installing hole moulding.
2. the forming method with synthetic resin handle of installing hole is characterized in that,
In described mould, fill the synthetic resin raw material of fusion from the cast gate of mould, second pin is moved to the mould inside direction, near the described resin raw material that remains in the described cast gate is pressed in the mould;
And then insert in making second pin, can move to mould inside to first pin that the mould inside direction moves, make described installing hole moulding.
3. the forming method of synthetic resin handle as claimed in claim 1 or 2 is characterized in that, described synthetic resin raw material is a metal-resin.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002357240A JP3705595B2 (en) | 2002-12-09 | 2002-12-09 | Molding method of synthetic resin handle |
| JP2002357240 | 2002-12-09 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1506212A CN1506212A (en) | 2004-06-23 |
| CN1283441C true CN1283441C (en) | 2006-11-08 |
Family
ID=32757331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03150400 Expired - Lifetime CN1283441C (en) | 2002-12-09 | 2003-07-30 | Forming method for synthetic resin handle |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP3705595B2 (en) |
| CN (1) | CN1283441C (en) |
| HK (1) | HK1063451A1 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010251712A (en) | 2009-03-26 | 2010-11-04 | Sony Corp | Bi-section semiconductor laser device, method for manufacturing the same, and method for driving the same |
| JP2011187580A (en) | 2010-03-05 | 2011-09-22 | Sony Corp | Self-oscillation type semiconductor laser element and driving method of the same |
| JP2011187579A (en) | 2010-03-05 | 2011-09-22 | Sony Corp | Mode-locked semiconductor laser element and driving method thereof |
| JP5138023B2 (en) | 2010-12-08 | 2013-02-06 | ソニー株式会社 | Semiconductor laser element |
| JP2012151210A (en) | 2011-01-18 | 2012-08-09 | Sony Corp | Semiconductor laser device |
| CN102322176A (en) * | 2011-06-30 | 2012-01-18 | 厦门建霖工业有限公司 | Method for preparing imitation metal composite door handle |
| KR101566245B1 (en) * | 2014-06-17 | 2015-11-05 | (주)태양프라스틱 | Knob of apparatus for folding the automobile seat and method of manufacturing it |
| DE102019210375A1 (en) * | 2019-07-12 | 2021-01-14 | Continental Teves Ag & Co. Ohg | Method of manufacturing a robust sensor |
-
2002
- 2002-12-09 JP JP2002357240A patent/JP3705595B2/en not_active Expired - Lifetime
-
2003
- 2003-07-30 CN CN 03150400 patent/CN1283441C/en not_active Expired - Lifetime
-
2004
- 2004-08-23 HK HK04106277A patent/HK1063451A1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| JP2004188678A (en) | 2004-07-08 |
| CN1506212A (en) | 2004-06-23 |
| HK1063451A1 (en) | 2004-12-31 |
| JP3705595B2 (en) | 2005-10-12 |
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