CN106827317B - Molding mold cavity step processing method and injection mold - Google Patents
Molding mold cavity step processing method and injection mold Download PDFInfo
- Publication number
- CN106827317B CN106827317B CN201710095790.XA CN201710095790A CN106827317B CN 106827317 B CN106827317 B CN 106827317B CN 201710095790 A CN201710095790 A CN 201710095790A CN 106827317 B CN106827317 B CN 106827317B
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- wall thickness
- injecting products
- main body
- mold cavity
- processing method
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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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
- B29C33/3842—Manufacturing moulds, e.g. shaping the mould surface by machining
-
- 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
Abstract
The invention proposes a kind of molding mold cavity step processing method and a kind of injection mold, determine stage portion appearance and non-appearance face, and straight flange processing is done into the non-appearance face of step；The wall thickness T2 of step is set smaller than to the main body wall thickness T of injecting products；The wall thickness T1 of the main body of injecting products and step upper end junction is set smaller than to the main body wall thickness T of injecting products；Transitional region is done in the non-appearance face of injecting products.Molding mold cavity step processing method provided by the invention, by the main body wall thickness T that the wall thickness T1 of the main body of the wall thickness T2 of step and injecting products and step upper end junction is set smaller than to injecting products, and straight flange processing is done on non-appearance surface at injecting products step, so that the smooth pore-free of injecting products appearance, gas line, and due to being provided with transitional region, avoids too unexpected wall thickness transition and will lead to and cause size unstable because of the different generation sinuous flow of cooling velocity and the problems such as gas line occurs in surface.
Description
Technical field
The present invention relates to injection mold fields, in particular to a kind of molding mold cavity step processing method and one
Kind injection mold.
Background technique
In the related art, the size of injecting products wall thickness depend on product need bear external force, whether as other
The support of part, the quantity for accepting column position, extension number and selection plastic material depending on, usual thermoplasticity material wall
Thickness design should be limited with 3mm, and blocked up product not only increases Material Cost, but also the production cycle is long, also, blocked up product will
Cause a possibility that generating " stomata " and big, to weaken the rigidity and intensity of product significantly.
Certainly, optimal wall thickness is undoubtedly thickness of the section at any one and is consistent, but to meet appearance
Or demand functionally, it is always inevasible in product surface setting step, as shown in Figure 1,12 ' place's wall thickness of step of product
T2 ' is greater than or equal to 14 ' wall thickness T of injecting products main body, and the corner's wall thickness mutation for resulting in product in this way is violent, and in step
Place does too unexpected wall thickness transition and will lead to causes size unstable and surface because of the different generation sinuous flow of cooling velocity
There is the problems such as gas line.
Summary of the invention
At least one in order to solve the above-mentioned technical problem, one object of the present invention proposes a kind of molding mold cavity platform
Rank processing method.
Another object of the present invention also proposed a kind of injection mold.
In view of this, a purpose according to the present invention, the invention proposes a kind of molding mold cavity step processing sides
Method, determine stage portion appearance and non-appearance face, and straight flange processing is done into the non-appearance face of step；The wall thickness T2 of step is set
It is set to the main body wall thickness T less than injecting products；Set small for the main body of injecting products and the wall thickness T1 of step upper end junction
In the main body wall thickness T of injecting products；Transitional region is done in the non-appearance face of injecting products.
Molding mold cavity step processing method provided by the invention, by by the wall thickness T2 of step and the master of injecting products
Body and the wall thickness T1 of step upper end junction are set smaller than the main body wall thickness T of injecting products, and will be non-at injecting products step
Appearance surfaces do straight flange processing, and in product injection phase, when mold cavity flows, sizing material inverts sizing material after touching straight flange
And fill the appearance of full step corner region in advance directly up, so that the smooth pore-free of injecting products appearance, gas
Line, also, since the wall thickness T1 of the main body of the wall thickness T2 of step and injecting products and step upper end junction is less than injecting products
Main body wall thickness T and due to being provided with transitional region, kept away so that injecting products are more gentle in the wall thickness transition that step goes out
Exempt from too unexpected wall thickness transition and will lead to cause size unstable and surface because of the different generation sinuous flow of cooling velocity
There is the problems such as gas line.
In the above-mentioned technical solutions, it is preferable that set 0 < T≤3mm for the value range of the T.
In the technical scheme, injecting products wall thickness is limited within 3mm, avoids blocked up product and not only increases object
Expect cost, and the production cycle is long, simultaneously, it is thus also avoided that blocked up product will result in a possibility that " stomata " and big, greatly
The big rigidity and intensity for weakening product.
In any of the above-described technical solution, it is preferable that the straight flange top is connected to the transitional region end.
In the technical scheme, transitional region and straight flange join, at injecting products step and the continuity of transitional region,
When sizing material filled-type chamber so that the flowing of sizing material is more coherent, ensure that avoid too unexpected wall thickness transition will lead to because
The different generation sinuous flow of cooling velocity and cause that size is unstable and the technical effect of the problems such as gas line occurs in surface.
In any of the above-described technical solution, it is preferable that the non-appearance face of transitional region and the straight flange form included angle A,
The A is acute angle.
In the technical scheme, it is set as acute angle by the way that the non-appearance face of transitional region and the straight flange are formed included angle A, i.e.,
So that transitional region by far from straight flange arrive close to straight flange be transition from thick to thin, also, due at step wall thickness T2 be less than infuse
Molding product main body wall thickness T, so that more gentle with the wall thickness transition of injecting products main body at step, it is ensured that injection molding is avoided to produce
There is the technical effect of too unexpected transition in product.
In any of the above-described technical solution, it is preferable that the ratio of the T2 and T is set as α, by the value of the α
Range is set as 1/4≤α≤1/3.
In the technical scheme, 1/4≤α≤1/3 is set by the ratio cc of wall thickness T2 at step and product main body wall thickness T,
So that avoiding wall thickness transition too unexpected between product main body at step will lead to because of the different generation of cooling velocity
Sinuous flow and cause the effect that size is unstable and the problems such as gas line occurs in surface to reach best.
In any of the above-described technical solution, it is preferable that the ratio of the T1 and T is set as β, by the value of the β
Range is set as 1/4≤β≤1/3.
In the technical scheme, the wall thickness T1 and product main body wall thickness T of the main body of injecting products and step upper end junction
Ratio beta be set as 1/4≤β≤1/3 so that avoiding the main body of injecting products and the wall thickness and step of step upper end junction
Locate too unexpected wall thickness transition and will lead to cause size unstable because of the different generation sinuous flow of cooling velocity and surface goes out
Now effect the problems such as gas line reaches best.
In any of the above-described technical solution, it is preferable that the transitional region straight length is L, and the value range of the L is
15mm≤L≤25mm。
It in the technical scheme, is that L is set as 15mm≤L≤25mm by the straight length of transitional region, so that transition region
The transition in domain is gentler, avoids the problems such as injection product surface generates gas line.
In any of the above-described technical solution, it is preferable that the value of the L is L=20mm.
It in the technical scheme, is that L is set as L=20mm by the straight length of transitional region, so that making transitional region
The gentler effect of transition reach best.
In any of the above-described technical solution, it is preferable that set smooth surface for the transitional region.
In the technical scheme, by setting smooth surface for transitional region, so that sizing material flows in transitional region
When, so that the flowing of sizing material is more smooth, so that product surface continuity is stronger, and then guarantee the intensity of injecting products.
Another purpose according to the present invention is by above-mentioned skill the invention proposes injection mold described in a kind of injection mold
Molding mold cavity step processing method described in any one of art scheme is fabricated.
Molding mold cavity platform described in a kind of any one of injection mold reason above-mentioned technical proposal proposed by the present invention
Rank processing method is fabricated, therefore, with molding mold cavity step processing side described in any one of above-mentioned technical proposal
Whole beneficial effects of method, do not do state one by one herein.
Additional aspect and advantage of the invention will become obviously in following description section, or practice through the invention
Recognize.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, in which:
Fig. 1 shows the structural schematic diagram of the wall thickness at mold cavity step in the related technology；
Fig. 2 shows at mold cavity step provided by one embodiment of the present invention with the structural representation of transitional region included angle A
Figure；
Fig. 3 shows the structural schematic diagram of the wall thickness at mold cavity step provided by one embodiment of the present invention；
Fig. 4 shows the flow chart of the molding mold cavity step processing method of one embodiment of the invention；
Fig. 5 shows the flow chart of the molding mold cavity step processing method of another embodiment of the present invention；
Fig. 6 shows the flow chart of the molding mold cavity step processing method of another embodiment of the present invention.
Wherein, the corresponding relationship in Fig. 1 between appended drawing reference and component names are as follows:
1 ' injection mold in the related technology, 12 ' step in the related technology, 14 ' injecting products master in the related technology
Body；
Wherein, corresponding relationship of the Fig. 2 into Fig. 6 between appended drawing reference and component names are as follows:
1 injection mold, 10 transitional regions, 12 steps, 14 injecting products main bodys.
Specific embodiment
To better understand the objects, features and advantages of the present invention, with reference to the accompanying drawing and specific real
Applying mode, the present invention is further described in detail.It should be noted that in the absence of conflict, the implementation of the application
Feature in example and embodiment can be combined with each other.
In the following description, numerous specific details are set forth in order to facilitate a full understanding of the present invention, still, the present invention may be used also
To be implemented using other than the one described here other modes, therefore, protection scope of the present invention is not by described below
Specific embodiment limitation.
Molding mold cavity step processing method and note according to some embodiments of the invention are described referring to Fig. 2 to Fig. 6
Mould 1.
As Fig. 4 shows the flow chart of the molding mold cavity step processing method of one embodiment of the invention.
Step 402, determine 12, mold cavity step appearance surfaces and non-appearance surface, and non-appearance surface is done directly
Side processing；
Step 404, the main body of the injecting products and the wall thickness T1 of the 12 upper end junction of step are set smaller than
The main body wall thickness T of the injecting products；
Step 406, the main body of the injecting products and the wall thickness T1 of the 12 upper end junction of step are set smaller than
The main body wall thickness T of the injecting products；
Step 408, transitional region 10 is done in the non-appearance face of the injecting products.
Molding mold cavity step processing method provided by one embodiment of the present invention, by by the wall thickness T2 of step 12 and
The main body of injecting products and the wall thickness T1 of 12 upper end junction of step are set smaller than the main body wall thickness T of injecting products, and will note
Straight flange processing is done on non-appearance surface at molding product step 12, and in product injection phase, when mold cavity flows, sizing material exists sizing material
The appearance that full 12 corner region of step is inverted and filled in advance directly up after touching straight flange, so that outside injecting products
The smooth pore-free in sight face, gas line, also, due to the main body of the wall thickness T2 of step 12 and injecting products and 12 upper end junction of step
Wall thickness T1 be less than injecting products main body wall thickness T so that injecting products step 12 go out wall thickness transition it is more gentle, and
Due to being provided with transitional region 10, avoiding too unexpected wall thickness transition will lead to the generation sinuous flow different because of cooling velocity
And cause that size is unstable and the problems such as gas line occurs in surface.
The present invention improves the wall thickness at the type chamber step 12 of injection mold 1, so that injecting products are in step 12
The wall thickness transition at place is gentle, solve injecting products change as generating unexpected wall thickness at step 12 and caused by be molded and produce
The size of product is unstable and the problems such as gas line occurs in surface.
As Fig. 5 shows the flow chart of the molding mold cavity step processing method of another embodiment of the present invention.
Step 502, determine 12, mold cavity step appearance surfaces and non-appearance surface, and non-appearance surface is done directly
Side processing；
Step 504,14 wall thickness T range of injecting products main body is arranged are as follows: 0 < T≤3mm；
Step 506,1/4≤α is set by the ratio cc range of the wall thickness T2 of step 12 and 14 wall thickness T of injecting products main body
≤1/3；
Step 508, by the main body of injecting products and the wall thickness T1 of 12 upper end junction of step and the main wall of injecting products
Thick T ratio beta range is set as 1/4≤β≤1/3；
Step 510, transitional region 10 is done in the non-appearance face of injecting products, and by the non-appearance face of transitional region 10 and straightsided shape
Included angle A at an acute angle.
The molding mold cavity step processing method that another embodiment of the present invention provides, by by injecting products main body 14
Wall thickness T range is set as 0 < T≤3mm, avoids blocked up product and not only increases Material Cost, but also the production cycle is long, together
When, it is thus also avoided that blocked up product will result in a possibility that " stomata " and big, weaken the rigidity and intensity of product significantly；It will
The ratio cc of wall thickness T2 and product main body wall thickness T is set as 1/4≤α≤1/3 at step 12, so that avoiding at step 12 and producing
Too unexpected wall thickness transition will lead between product main body causes size unstable because of the different generation sinuous flow of cooling velocity
Reach best with effect that the problems such as gas line occurs in surface；By the wall thickness T1 of the main body of injecting products and 12 upper end junction of step
It is set as 1/4≤β≤1/3 with the ratio beta of product main body wall thickness T, so that avoiding main body and 12 upper end of step of injecting products
The wall thickness of junction will lead to the generation sinuous flows different because of cooling velocity from wall thickness transition too unexpected at step 12 due to make
At size is unstable and surface occur the problems such as gas line effect reach most preferably by by the non-appearance face of transitional region 10 with it is described
Straight flange formed included angle A be set as acute angle, i.e., so that transitional region 10 by far from straight flange arrive close to straight flange be transition from thick to thin,
Also, due at step 12 wall thickness T2 be less than 14 wall thickness T of injecting products main body so that at step 12 with injecting products main body
14 wall thickness transition is more gentle, it is ensured that injecting products is avoided the technical effect of too unexpected transition occur.
The present invention improves the wall thickness at the type chamber step 12 of injection mold 1, so that injecting products are in step 12
The setting of the wall thickness at place is more reasonable, so that the setting of the wall thickness of injecting products reaches most preferably, more efficiently solves injection molding
Product change as generating unexpected wall thickness at step 12 and caused by injecting products size it is unstable and surface occurs
The problems such as gas line.
Fig. 6 shows the flow chart of the molding mold cavity step processing method of another embodiment of the present invention.
Step 602, determine 12, mold cavity step appearance surfaces and non-appearance surface, and non-appearance surface is done directly
Side processing；
Step 604,0 < T≤3mm is set by 14 wall thickness T range of injecting products main body；
Step 606,1/4≤α is set by the ratio cc range of the wall thickness T2 of step 12 and 14 wall thickness T of injecting products main body
≤1/3；
Step 608, by the main body of injecting products and the wall thickness T1 of 12 upper end junction of step and the main wall of injecting products
Thick T ratio beta range is set as 1/4≤β≤1/3；
Step 610, transitional region 10 is done in the non-appearance face of injecting products, and by the non-appearance face of transitional region 10 and straightsided shape
At included angle A be set as acute angle；
It step 612, is 15mm≤L≤25mm by the value range that 10 straight length of transitional region is L.
The molding mold cavity step processing method that another embodiment of the present invention provides, by by injecting products main body 14
Wall thickness T range is set as 0 < T≤3mm, avoids blocked up product and not only increases Material Cost, but also the production cycle is long, together
When, it is thus also avoided that blocked up product will result in a possibility that " stomata " and big, weaken the rigidity and intensity of product significantly；It will
The ratio cc of wall thickness T2 and product main body wall thickness T is set as 1/4≤α≤1/3 at step 12, so that avoiding at step 12 and producing
Too unexpected wall thickness transition will lead between product main body causes size unstable because of the different generation sinuous flow of cooling velocity
Reach best with effect that the problems such as gas line occurs in surface；By the wall thickness T1 of the main body of injecting products and 12 upper end junction of step
It is set as 1/4≤β≤1/3 with the ratio beta of product main body wall thickness T, so that avoiding main body and 12 upper end of step of injecting products
The wall thickness of junction will lead to the generation sinuous flows different because of cooling velocity from wall thickness transition too unexpected at step 12 due to make
At size is unstable and surface occur the problems such as gas line effect reach most preferably by by the non-appearance face of transitional region 10 with it is described
Straight flange formed included angle A be set as acute angle, i.e., so that transitional region 10 by far from straight flange arrive close to straight flange be transition from thick to thin,
Also, due at step 12 wall thickness T2 be less than 14 wall thickness T of injecting products main body so that at step 12 with injecting products main body
14 wall thickness transition is more gentle, it is ensured that injecting products is avoided the technical effect of too unexpected transition occur；Transitional region 10 is straight
The value range that line length is L is that 15mm≤L≤25mm so that the transition of transitional region 10 is gentler avoids injecting products
Surface generates the problems such as gas line.
Wherein it is preferred to which it is 20mm that 10 straight length of transitional region, which is L value,.
As shown in Figure 2 and Figure 3, the injection mold 1 that the second aspect of the present invention embodiment provides, passes through any of the above-described implementation
The molding mold cavity step processing method that example provides is fabricated.
The molding mold cavity step processing method that any of the above-described embodiment of 1 reason of injection mold provided by the invention provides
It is fabricated, therefore, whole beneficial effects with the molding mold cavity step processing method that any of the above-described embodiment provides,
It does not do and states one by one herein.
In conclusion molding mold cavity step processing method provided by one embodiment of the present invention and injection mold 1, lead to
It crosses and the wall thickness T1 of the main body of the wall thickness T2 of step 12 and injecting products and 12 upper end junction of step is set smaller than injection molding production
The main body wall thickness T of product, and straight flange processing is done on non-appearance surface at injecting products step 12, in product injection phase, sizing material exists
When mold cavity flows, sizing material inverts after touching straight flange and fills the appearance of full 12 corner region of step in advance directly up
Face, so that the smooth pore-free of injecting products appearance, gas line, also, due to the wall thickness T2 of step 12 and injecting products
The wall thickness T1 of main body and 12 upper end junction of step is less than the main body wall thickness T of injecting products, so that injecting products are in step
12 wall thickness transition out is more gentle, and due to being provided with transitional region 10, avoiding too unexpected wall thickness transition be will lead to
It causes size unstable because of the different generation sinuous flow of cooling velocity and the problems such as gas line occurs in surface.
In the description of this specification, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc.
Mean that particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one reality of the invention
It applies in example or example.In the present specification, schematic expression of the above terms are not necessarily referring to identical embodiment or reality
Example.Moreover, description particular features, structures, materials, or characteristics can in any one or more of the embodiments or examples with
Suitable mode combines.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (7)
1. a kind of molding mold cavity step processing method, which is characterized in that
Determine stage portion appearance and non-appearance face, and straight flange processing is done into the non-appearance face of the step；
The wall thickness T2 of the step is set smaller than to the main body wall thickness T of injecting products；
The wall thickness T1 of the main body of the injecting products and step upper end junction is set smaller than the injecting products
Main body wall thickness T；
Transitional region is done in the non-appearance face of the injecting products；
The ratio of the T2 and T is set as α, sets 1/4≤α≤1/3 for the value range of the α；
The straight flange top is connected to the transitional region end；
The non-appearance face of transitional region and the straight flange form included angle A, and the A is acute angle.
2. molding mold cavity step processing method according to claim 1, which is characterized in that by the value model of the T
It encloses and is set as 0 < T≤3mm.
3. molding mold cavity step processing method according to claim 1 or 2, which is characterized in that the T1 and T
Ratio be set as β, set 1/4≤β≤1/3 for the value range of the β.
4. molding mold cavity step processing method according to claim 1, which is characterized in that the transitional region straight line
Length is L, and the value range of the L is 15mm≤L≤25mm.
5. molding mold cavity step processing method according to claim 4, which is characterized in that the value of the L is L=
20mm。
6. molding mold cavity step processing method according to claim 5, which is characterized in that set the transitional region
It is set to smooth surface.
7. a kind of injection mold, which is characterized in that the injection mold is by described in any one of the claims 1 to 6
Molding mold cavity step processing method be fabricated.
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| CN201710095790.XA CN106827317B (en) | 2017-02-22 | 2017-02-22 | Molding mold cavity step processing method and injection mold |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710095790.XA CN106827317B (en) | 2017-02-22 | 2017-02-22 | Molding mold cavity step processing method and injection mold |
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| CN106827317B true CN106827317B (en) | 2019-07-02 |
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| CN102049841A (en) * | 2010-11-04 | 2011-05-11 | 嘉兴信元精密模具科技有限公司 | Method for manufacturing mold cavity for preventing shrinkage of decorative strip products and mold cavity |
| CN103624935A (en) * | 2013-11-12 | 2014-03-12 | 昆山市硕强信息咨询有限公司 | Mould for solving product surface shrinkage |
| CN204414487U (en) * | 2014-12-31 | 2015-06-24 | 延锋伟世通汽车模具有限公司 | A kind of parting surface structure of low pressure injection mould |
| CN105946184A (en) * | 2016-06-24 | 2016-09-21 | 广州新晖汽车零部件有限公司 | Gating system of injection mold |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102049841A (en) * | 2010-11-04 | 2011-05-11 | 嘉兴信元精密模具科技有限公司 | Method for manufacturing mold cavity for preventing shrinkage of decorative strip products and mold cavity |
| CN103624935A (en) * | 2013-11-12 | 2014-03-12 | 昆山市硕强信息咨询有限公司 | Mould for solving product surface shrinkage |
| CN204414487U (en) * | 2014-12-31 | 2015-06-24 | 延锋伟世通汽车模具有限公司 | A kind of parting surface structure of low pressure injection mould |
| CN105946184A (en) * | 2016-06-24 | 2016-09-21 | 广州新晖汽车零部件有限公司 | Gating system of injection mold |
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Address after: 528311 Foshan, Shunde District, Guangdong City, Beijiao Town, Penglai Road, Midea industrial city Patentee after: GUANGDONG MEIDI PRECISION DIE TECHNOLOGY Co.,Ltd. Address before: 528311 Foshan, Shunde District, Guangdong City, Beijiao Town, Penglai Road, Midea industrial city Patentee before: FOSHAN SHUNDE BAINIAN TECHNOLOGY Co.,Ltd. |