CN203622770U - Mould and equipment for insert molding process - Google Patents
Mould and equipment for insert molding process Download PDFInfo
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- CN203622770U CN203622770U CN201320687573.7U CN201320687573U CN203622770U CN 203622770 U CN203622770 U CN 203622770U CN 201320687573 U CN201320687573 U CN 201320687573U CN 203622770 U CN203622770 U CN 203622770U
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- mould
- movable mold
- insert
- mold insert
- molding technique
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Abstract
The utility model relates to a mould for an insert molding process. The mould comprises a first mould part and a second mould part, wherein a mould cavity of a rear mould is arranged at a mould cavity position of the second mould part on the mould; the first mould part comprises a first mould part body, a first movable insert, a second movable insert and an elastic member, wherein the first mould part body is provided with a mould cavity part of a front mould, an injection molding inlet and a runner; the first movable insert can be subjected to the effect of an injection molding pressure; a mould cavity of the mould can be defined by the second movable insert, the mould cavity part of the front mould and the mould cavity part of the rear mould under a mould closing state; the elastic member is used for connecting the first movable insert and the second movable insert; the elastic member is arranged and one part of the elastic member is located between the first movable insert and the second movable insert under a mould opening state so that the maximum distance is formed between the first movable insert and the second movable insert; the elastic member is compressed to the greatest extent under the mould closing state so that the first movable insert and the second movable insert are abutted against each other. The utility model further relates to equipment comprising the mould.
Description
Technical field
The utility model relates to a kind of mould for insert-molding technique, and it is included in the first mould part and the second mould part separated from one another under die opening state and that under matched moulds state, be engaged with each other.Especially, the utility model also relates to a kind of equipment that comprises described mould.
Background technology
Insert-molding (Insert Molding) technique refers to a kind of forming method of integration product.
Mould for insert-molding technique mainly comprises two parts, and wherein a part is commonly referred to front mould, cover half or master mold, and another part is commonly referred to rear mold, dynamic model or male model.Front mould and rear mold are separated from one another under die opening state, thus and the formation die cavity that is engaged with each other under matched moulds state.The runner that is provided with injection moulding entrance in front mould and is communicated with injection moulding entrance.Described runner renews and stretches and be communicated with die cavity at rear mold relaying.
The key step of described moulding engineering method comprises:
-front mould is separated with rear mold;
-pre-prepd different material inserts is inserted between described front mould and rear mold;
-front mould is engaged with rear mold;
-inject thermoplasticity or the thermosets of melting from injection moulding entrance; And
-material of described melting is engaged with inserts in die cavity solidify, form thus integration product.
At the current mould for insert-molding technique, under matched moulds state, the distance in die cavity between front mould and rear mold is fixed, and described distance is generally determined by the size that is inserted into inserts.
But due to intrinsic process technology limit in inserts making, there is tolerance in the size of inserts itself, and its dimensional accuracy is difficult to further raising at present.Therefore,, in the time that inserts size has plus tolerance, inserts size may exceed the distance between the interior front mould of die cavity and rear mold.Like this, in the time of matched moulds inserts will be subject to before and after die cavity extruding and may deform, break etc.And in the time that inserts size has negative common difference, inserts size may be less than the distance between the interior front mould of die cavity and rear mold.Like this, under matched moulds state, outside die cavity border, between front mould and rear mold, there is space, therefore can cause forming on injecting products batch cutting edge of a knife or a sword, burr, burr etc. when injection moulding.
In the situation that using cold runner die, the problems referred to above are especially outstanding.In the matched moulds process of cold runner die, front mould and rear mold each other rigidity against, be therefore difficult to the locked mode position by the disposable control front mould of mold clamping force and rear mold.In this case, in matched moulds process, very easily occur that matched moulds tension damages inserts by pressure, or matched moulds is not in place and make injecting products occur the situation of batch cutting edge of a knife or a sword.
Utility model content
An object of the present utility model is to propose a kind of mould for insert-molding technique or equipment, to overcome at least one the problems referred to above existing in prior art.
According to an aspect of the present utility model, a kind of mould for insert-molding technique has been proposed, described mould comprise can be under die opening state and matched moulds state under the first mould part and the second mould part, described the first mould part and described the second mould part are separated from one another under die opening state, and be engaged with each other under matched moulds state
Wherein, described the second mould part has the second mould part mould cavity part in the die cavity position of mould, and described the first mould part comprises:
The-the first mould part body, described the first mould part body has the first mould part mould cavity part of the die cavity position in mould, injection moulding entrance away from described the first mould part mould cavity part, and the runner being communicated with described injection moulding entrance;
-being provided with the first movable mold insert on flow passage side surface, wherein said flow passage side surface is exposed in described runner, and in described flow passage side surface is subject to from runner when the pressure of injected plastics material, the described first movable mold insert is towards the die cavity motion of described mould thus;
The-the second movable mold insert, wherein, under matched moulds state, the described second movable mold insert, described the first mould part mould cavity part define the die cavity of described mould together with described the second mould part mould cavity part; And
-connect the elastic component of the described first movable mold insert and the described second movable mold insert, described elastic component is configured to a part for described elastic component under die opening state between the described first movable mold insert and the described second movable mold insert, to make there is maximum spacing between the described first movable mold insert and the described second movable mold insert, and described elastic component is compressed under matched moulds state, be rigidly connected and transfer function power mutually to make between the described first movable mold insert and the described second movable mold insert to set up.
Preferably, described runner can be cold runner.
Preferably, described elastic component can comprise two Compress Springs.More preferably, for guaranteeing to be rigidly connected more stablely between the first movable mold insert and the described second movable mold insert, described elastic component can comprise at least three Compress Springs.
Preferably, the described maximum spacing between the described first movable mold insert and the described second movable mold insert can be 0.05mm to 0.2mm.
Preferably, the movable largest motion distance of the described first movable mold insert can be more than or equal to described maximum spacing.
Preferably, the first movable mold insert and the second movable mold insert can be set to contact with each other under matched moulds state, set up and are rigidly connected and transfer function power thus.
Preferably, the first movable mold insert also can be set to not contact each other under matched moulds state with the second movable mold insert, and is set up and be rigidly connected and transfer function power by the elastic component being fully compressed.Under the first movable mold insert and the second movable mold insert are set under matched moulds state each other discontiguous situation, preferably, also can set up and be rigidly connected and transfer function power by auxiliary part.
Preferably, under matched moulds state, compressed described elastic component can be accommodated in and is arranged in the described first movable mold insert and/or is arranged in the recess in the described second movable mold insert.
Preferably, the inserts using in described insert-molding technique can be for example glass or pottery.
Preferably, described mould can be for the insert-molding technique of the parts of electronic equipment.
According to another aspect of the present utility model, a kind of equipment for insert-molding technique has also been proposed, wherein, described equipment comprises above-described mould.
Utilize the above-described mould for insert-molding technique or equipment, the utility model is by the clamping system of front mould and rear mold in improvement cold runner die, effectively control the distance between front mould and rear mold in matched moulds state lower mode cavity, to adapt to have the inserts of size difference.Therefore, avoided weighing wounded inserts or produced injection moulding and criticized the problems such as cutting edge of a knife or a sword, thereby improved the quality of injecting products.
Brief description of the drawings
Preferred embodiment of the present utility model is described below with reference to accompanying drawings, wherein:
Fig. 1 shows the mould 1 for insert-molding technique according to an embodiment of the present utility model, and described mould 1 is under die opening state;
Fig. 2 shows the movable mold insert 22 of first in Fig. 1, the second movable mold insert 23 and Compress Spring 241,242;
Fig. 3 shows injection moulding process under matched moulds state and starts front mould 1; And
The mould 1 that Fig. 4 shows injection moulding process under matched moulds state after finishing.
Detailed description of the invention
Appended accompanying drawing is only exemplarily to provide for purposes of illustration.Accompanying drawing is only schematically drawn, and not draws in proportion between each parts.Especially, for clarity sake, spacing is wherein exaggerated and illustrates.
Fig. 1 shows the mould 1 for insert-molding technique according to an embodiment of the present utility model, and described mould 1 is under die opening state.
Mould 1 comprises the first mould part and the second mould part.In the present embodiment, front mould 20 and rear mold 30 are respectively front mould 20 and rear mold 30.Front mould 20 comprises front mould body 21, the first movable mold insert 22, the second movable mold insert 23, and connects the first movable mold insert 22 and the second movable mold insert 23 elastic components 24.The first movable mold insert 22 and the second movable mold insert 23 all can be along the directions towards die cavity with away from the direction translation of die cavity.In the present embodiment, elastic component 24 is made up of two Compress Springs 241,242.Rear mold 30 has rear mold mould cavity part 301 in the die cavity position of mould 1.
In an alternate embodiments, elastic component 24 comprises at least three Compress Springs, parallel to each other to guarantee the contact plane between the first movable mold insert 22 and the second movable mold insert 23.
The first movable mold insert 22 has flow passage side surface 221 and the first mold insert spring side surface 222 in two opposite sides.Flow passage side surface 221 is exposed in runner 212.In other words, at least a portion on flow passage side surface 221 forms a part for the wall of runner 212, thereby the injected plastics material in runner 212 can be exerted pressure to flow passage side surface 221.
The second movable mold insert 23 has cavity side surface 232 and the second mold insert spring side surface 231 in two opposite sides.The first mold insert spring side surface 222 and the second mold insert spring side surface 231 are parallel to each other and mutually face.Under matched moulds state, the second movable mold insert 23, front mould mould cavity part 211 define the die cavity of mould 1 together with rear mold mould cavity part 301.Described die cavity is communicated with runner by ingate.
In Fig. 2, show very briefly the schematic diagram of spring 241,242.As shown in the figure, under die opening state, spring 241,242 is in non-compressed state, and its epimere and hypomere are respectively in the first movable mold insert 22 and the second movable mold insert 23, stage casing between the first mold insert spring side surface 222 and the second mold insert spring side surface 231, thereby make to there is at this moment maximum spacing L between described two opposed facing surperficial 222,231.Under the injection pressure effect applying at injected plastics material, the first movable mold insert 22 can move downward to largest motion distance B (as shown in Figure 4) in Compress Spring, and in one embodiment, D >=L.
Referring to Fig. 2, wherein show the first movable mold insert 22, the second movable mold insert 23 and spring 241,242 under die opening state according to present embodiment.In Fig. 2, the maximum spacing L between the first mold insert spring side surface 222 and the second mold insert spring side surface 231 is 0.05mm to 0.2mm.
In the present embodiment, spring is set to its epimere and hypomere is accommodated in respectively in the recess of the first movable mold insert 22 and the second movable mold insert 23, and this for example can be by being provided for holding the epimere of spring or the recess (not shown) of hypomere is realized in movable mold insert.But it is contemplated that, spring also can alternatively be set to only have its epimere and hypomere to be accommodated in the recess of corresponding movable mold insert, and the other end is fixed on the spring side surface of another movable mold insert.The principle that need to guarantee is that, under die opening state, a part for not compressed elastic component 24 is between two movable mold inserts, so that two movable mold inserts are separated with maximum spacing L; And under matched moulds state, the first movable mold insert 22 moves downward to largest motion distance B in elasticity of compression member 24, the first movable mold insert 22 and the second movable mold insert 23 are rigidly connected to each other and transfer function power mutually thus.
In the present embodiment, spring is all housed inside in the recess of movable mold insert under matched moulds state, to make two spacing between movable mold insert as zero.In this case, when the first movable mold insert 22 and the second movable mold insert 23 is rigidly connected and when transfer function power, spring can be fully compressed, or also can not be fully compressed, and this depends on the degree of depth of the recess that holds spring and the characteristic of spring and specification.
In an alternate embodiments, the first movable mold insert 22 can be set to not contact each other under matched moulds state with the second movable mold insert 23, but be rigidly connected and direct transfer function power by the elastic component 24 being fully compressed.In this case, can in the spring side surface 222,231 of mold insert 22,23, recess be set.In another alternate embodiments, can elastic component 24 be set in the time being compressed into certain position locked.In another alternate embodiments, auxiliary part can also be set for power is directly delivered to the second movable mold insert 23 from the first movable mold insert 22.
The process that uses mould 1 to carry out the injection moulding of insert-molding technique is described below:
1) open mould 1, place inserts 40 in the die cavity position of rear mold 30.
Described inserts 40 can be for example glass or ceramic insert.
2), under the effect of the mold clamping force F as shown in the downward arrow in Fig. 1, front mould 20 drives its first movable mold insert 22 and the second movable mold insert 23 to move towards rear mold 30.
3) make front mould 20 and rear mold 30 matched moulds.Owing to there is spacing between two movable mold inserts 22,23, therefore mold clamping force F can not be applied to rapidly and directly in rear mold 30.In the time that this process finishes, front mould 20 engages with rear mold 30, and the cavity side surface 232 of the second movable mold insert 23 can contact or press close to inserts 40, but is not closely pressed on inserts 40.Referring to Fig. 3, wherein show the mould 1 under this state.Now, in the situation that the second movable mold insert 23 contacts inserts 40, cavity side surface 232 applies power f to inserts 40, wherein, and f < F.
When inserts 40 makes its thickness or local thickness when larger owing to having tolerance, owing to directly not accepting mold clamping force F, therefore the second movable mold insert 23 can't be applied directly to excessive power on inserts 40.Therefore the situation of having avoided inserts to be damaged by pressure according to mould of the present utility model.
4) carry out injection moulding from injection moulding entrance 213 injection materials.Injection pressure in runner 212 acts on the flow passage side surface 221 of the first movable mold insert 22, and the described first movable mold insert 22 is towards the die cavity motion of described mould thus.Injection pressure is further passed to the second movable mold insert 23 by spring 241,242.In injection moulding process, spring 241,242 is compressed gradually, and the spacing between the first movable mold insert 22 and the second movable mold insert 23 shortens gradually.Make thus final realization between the first movable mold insert 22 and the second movable mold insert 23 be rigidly connected.In the above-described embodiment, the first mold insert spring side surface 222 contacts completely with the second mold insert spring side surface 231.
5) injected plastics material in runner 212 is delivered to injection pressure on the second movable mold insert 23 by the first movable mold insert 22 and elastic component 24 successively.Under the effect of described injection pressure, the second movable mold insert 23 further presses to rear mold 30, and compresses gradually inserts 40.Finally, under matched moulds state, the size and dimension of the die cavity of inserts annex is the size and dimension of identical inserts well.Referring to Fig. 4, the mould 1 after wherein showing injection moulding process under matched moulds state and finishing.
When inserts 40 makes its thickness or local thickness hour owing to having tolerance, in die cavity, may at least there is space in part.Now, in the time that the second movable mold insert 23 further moves to inserts, the power that cavity side surface 232 applies towards inserts 40 is enough little of not damage inserts 40, simultaneously enough large so that the gap in die cavity is eliminated again.Therefore avoided final injecting products to occur the situation of batch cutting edge of a knife or a sword according to mould of the present utility model.
6) continue injection moulding to make injected plastics material arrive die cavity by injection moulding entrance 213, runner 212 and cast gate successively, thereby form final products 3 by the injected plastics material 50 of moulding in die cavity together with inserts 40, as shown in Figure 4.
In said process, spring makes the first movable mold insert 22 produce rigidity with the second movable mold insert 23 to contact because of compressed, now elastic component 24 makes a concerted effort to be less than 1/2nd of mold clamping force because of the compressed elasticity producing, to realize the fine setting effect of spring to spacing between cephacoria 20 and caudacoria 30.For example, when inserts is glass or when pottery, mold clamping force is about 2200N, and elastic component elasticity of generation in the time that the first movable mold insert 22 and the second movable mold insert 23 are rigidly connected is made a concerted effort to be about 800N and can be realized the purpose of this utility model and effect.
Mould in present embodiment goes for the insert-molding technique of the parts of electronic equipment, and this electronic equipment can be for example mobile phone.
Above-described mould for example can be applied in insert-molding process equipment.
Below reference implementation mode is described the utility model, but it is pointed out that above-described embodiment is all exemplary, instead of restrictive.Each technical characterictic of describing in above-described embodiment can at random combination and use in different embodiments in the situation that not contradicting each other.And one skilled in the art will recognize that in the situation that not departing from spirit and scope of the present utility model, can make multiple variation, within these variations all should covered in scope of the present utility model.
Claims (13)
1. the mould for insert-molding technique (1), described mould comprise can be under die opening state and matched moulds state under the first mould part (20) and the second mould part (30), described the first mould part (20) and described the second mould part (30) are separated from one another under die opening state, and be engaged with each other under matched moulds state
Wherein, described the second mould part (30) has the second mould part mould cavity part (301) in the die cavity position of mould (1), and described the first mould part (20) comprising:
The-the first mould part body (21), described the first mould part body (21) has the first mould part mould cavity part (211) of the die cavity position in mould (1), injection moulding entrance (213) away from described the first mould part mould cavity part (211), and the runner (212) being communicated with described injection moulding entrance (213);
-be provided with the first movable mold insert (22) on flow passage side surface (221), wherein said flow passage side surface (221) is exposed in described runner (212), in described flow passage side surface (221) is subject to from runner when the pressure of injected plastics material, the described first movable mold insert (22) is towards the die cavity motion of described mould (1) thus;
The-the second movable mold insert (23), wherein, under matched moulds state, the described second movable mold insert (23), described the first mould part mould cavity part (211) define the die cavity of described mould (1) together with described the second mould part mould cavity part (301); And
-connect the elastic component (24) of the described first movable mold insert (22) and the described second movable mold insert (23), the part that described elastic component (24) is configured to described elastic component (24) under die opening state is positioned between the described first movable mold insert (22) and the described second movable mold insert (23), to make there is maximum spacing (L) between the described first movable mold insert (22) and the described second movable mold insert (23), and described elastic component (24) is compressed under matched moulds state, be rigidly connected and transfer function power mutually to make between the described first movable mold insert (22) and the described second movable mold insert (23) to set up.
2. the mould for insert-molding technique according to claim 1 (1), is characterized in that, described runner (212) is cold runner.
3. the mould for insert-molding technique according to claim 1 and 2 (1), is characterized in that, described elastic component (24) comprises two Compress Springs (241,242).
4. the mould for insert-molding technique according to claim 1 and 2 (1), is characterized in that, described elastic component (24) comprises at least three Compress Springs.
5. the mould for insert-molding technique according to claim 1 and 2 (1), is characterized in that, the described maximum spacing (L) between the described first movable mold insert (22) and the described second movable mold insert (23) is 0.05mm to 0.2mm.
6. the mould for insert-molding technique according to claim 5 (1), is characterized in that, the described first movable largest motion distance of movable mold insert (22) (D) is more than or equal to described maximum spacing (L).
7. the mould for insert-molding technique according to claim 1 and 2 (1), is characterized in that, the first movable mold insert (22) is set to contact with each other under matched moulds state with the second movable mold insert (23), sets up and is rigidly connected and transfer function power thus.
8. the mould for insert-molding technique according to claim 1 and 2 (1), it is characterized in that, the first movable mold insert (22) is set to not contact each other under matched moulds state with the second movable mold insert (23), and is set up and be rigidly connected and transfer function power by the elastic component (24) being fully compressed.
9. the mould for insert-molding technique according to claim 1 and 2 (1), it is characterized in that, the first movable mold insert (22) is set to not contact each other under matched moulds state with the second movable mold insert (23), and is set up and be rigidly connected and transfer function power by auxiliary part.
10. the mould for insert-molding technique according to claim 1 and 2 (1), it is characterized in that, under matched moulds state, compressed described elastic component (24) is accommodated in and is arranged in the described first movable mold insert (22) and/or is arranged in the recess in the described second movable mold insert (23).
11. moulds for insert-molding technique according to claim 1 and 2 (1), is characterized in that, the inserts (40) using in described insert-molding technique is glass or pottery.
12. moulds for insert-molding technique according to claim 1 and 2 (1), is characterized in that, described mould (1) is for the insert-molding technique of the parts of electronic equipment.
13. 1 kinds of equipment for insert-molding technique, is characterized in that, described equipment comprises according to the mould (1) described in any one in the claims.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320687573.7U CN203622770U (en) | 2013-11-01 | 2013-11-01 | Mould and equipment for insert molding process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320687573.7U CN203622770U (en) | 2013-11-01 | 2013-11-01 | Mould and equipment for insert molding process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203622770U true CN203622770U (en) | 2014-06-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320687573.7U Withdrawn - After Issue CN203622770U (en) | 2013-11-01 | 2013-11-01 | Mould and equipment for insert molding process |
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| CN (1) | CN203622770U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104552592A (en) * | 2014-12-20 | 2015-04-29 | 佛山市南海鑫隆机工机械有限公司 | Automatic mold assembling and separating production line for daily-use porcelains and control method thereof |
| CN104608311A (en) * | 2013-11-01 | 2015-05-13 | 广州光宝移动电子部件有限公司 | Insert moulding technology die, apparatus, method, and product |
| CN114055723A (en) * | 2021-12-13 | 2022-02-18 | 嘉兴信元精密模具科技有限公司 | Mold device for solving secondary injection molding damage to appearance leather grain surface of plastic part product |
-
2013
- 2013-11-01 CN CN201320687573.7U patent/CN203622770U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104608311A (en) * | 2013-11-01 | 2015-05-13 | 广州光宝移动电子部件有限公司 | Insert moulding technology die, apparatus, method, and product |
| CN104608311B (en) * | 2013-11-01 | 2017-03-29 | 广州光宝移动电子部件有限公司 | Insert molding process mould, equipment, method and product |
| CN104552592A (en) * | 2014-12-20 | 2015-04-29 | 佛山市南海鑫隆机工机械有限公司 | Automatic mold assembling and separating production line for daily-use porcelains and control method thereof |
| CN104552592B (en) * | 2014-12-20 | 2016-10-05 | 佛山市南海鑫隆机工机械有限公司 | A kind of household china has automatic division and modulus production line and control method thereof |
| CN114055723A (en) * | 2021-12-13 | 2022-02-18 | 嘉兴信元精密模具科技有限公司 | Mold device for solving secondary injection molding damage to appearance leather grain surface of plastic part product |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
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Granted publication date: 20140604 Effective date of abandoning: 20170329 |