CN111086142A - Dynamic filling amount process method for rubber material of molded rubber composite product - Google Patents
Dynamic filling amount process method for rubber material of molded rubber composite product Download PDFInfo
- Publication number
- CN111086142A CN111086142A CN201911365649.2A CN201911365649A CN111086142A CN 111086142 A CN111086142 A CN 111086142A CN 201911365649 A CN201911365649 A CN 201911365649A CN 111086142 A CN111086142 A CN 111086142A
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- China
- Prior art keywords
- glue
- weight
- dynamic
- framework
- filling
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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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
- B29C43/18—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles
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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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/58—Measuring, controlling or regulating
-
- 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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/58—Measuring, controlling or regulating
- B29C2043/5875—Measuring, controlling or regulating the material feed to the moulds or mould parts, e.g. controlling feed flow, velocity, weight, doses
Abstract
The invention provides a process method for dynamic filling of rubber material of a molded rubber composite product, which is characterized in that a traditional mass method is converted into a volume method, and the process method for dynamic filling of rubber material of a molded rubber product designed by the volume method effectively solves the problems of low product qualification rate and the like of the molded rubber product caused by the uncertainty of the size of a framework, and reduces the quality risk.
Description
Technical Field
The invention relates to the technical field of rubber products, in particular to a molded rubber product and a multi-cavity injection molding rubber product.
Background
The molded rubber composite product is composed of a framework and a rubber material, wherein the framework is subjected to the requirements of material working conditions, processing and the like and is represented as follows: 1. the external dimension is different from that of the drawing; 2. the size difference exists between the frameworks, so that the fluctuation of the rubber loading amount is large, and particularly, the performance of large rubber composite products is obvious. So that in practice the following possibilities arise: 1. the glue loading amount is large, the size is out of tolerance and edge burning is caused by vulcanization mold lifting, and the appearance is unqualified; 2, the glue filling amount is small, so that the appearance is unqualified due to glue shortage, and the adhesion is influenced by underpressure; the stress imbalance, excessive heat generation, early failure and the like are shown in the using process.
The invention provides a process method for dynamic filling amount of rubber material of a molded rubber composite product, which is characterized by comprising the following steps: 1. the method for designing the dynamic rubber loading amount of the molded rubber composite product by the volume method is simple and easy to implement, well solves the problems of low product qualification rate and the like of the molded rubber product caused by the fluctuation of the size of the framework, and reduces the quality risk; 2. the field of application is not limited to molded articles, including multi-cavity injection molding processes and the like.
Disclosure of Invention
The invention provides a process method for dynamic filling of rubber material of a molded rubber composite product, which is characterized in that a traditional weight method is converted into a volume method, and the process method for dynamic filling of rubber material of a molded rubber product designed by the volume method effectively solves the problems of low product qualification rate and the like of the molded rubber product caused by the uncertainty of a framework and reduces the quality risk.
Based on this, the technical scheme of the invention is as follows: the process method is characterized by comprising the following steps of: a dynamic glue loading quantity mathematical model and a comparison table of framework materials and glue loading weight. The dynamic glue filling amount mathematical model comprises:
a.V＝V1+V2+……Vi；
b.V＝m1/ρ1+m2/ρ2+……mi/ρi；
c.mi＝(V-m1/ρ1-m2/ρ2……)/ρi
d.M＝miη
wherein, V: the volume of the cavity of the die,
V1: one of the framework materials;
V2: wherein another framework material volume；
Vi: theoretical volume of charged colloid
m1: one of the qualities of the framework material;
m2: the mass of the other framework material;
mi: theoretical glue filling quality;
m, glue filling quality;
ρ1wherein the density of one framework material;
ρ2wherein the density of the other framework material;
ρiusing the density of the sizing material;
η filling factor.
The comparison table of the weight of the framework and the glue filling amount comprises: skeleton group weight, glue loading weight, etc., as follows:
the unit of the comparison table of the weight of the framework and the glue loading amount is as follows: g
| Serial number | m1 | m2 | M | Remarks for note | |
And (5) drawing a comparison table of the weight of the framework and the glue filling amount. Firstly, a dynamic glue filling amount mathematical model c (m)i＝(V-m1/ρ1-m2/ρ2……)/ρi) Calculate the theoretical mass mi(ii) a Secondly, selecting a proper filling coefficient to calculate the actual filling mass M, and drawing a comparison table of the framework weight and the filling mass.
Drawings
Fig. 1 is a production drawing of a shock absorber product.
Detailed Description
The present invention will be described in further detail with reference to a shock absorber product as an example.
Example 1:
and (3) related parameters:
constant: 7920cm3；ρ1＝7.8g/cm3；ρi＝1.37.8g/cm3；η＝2％；
Variables are as follows: m is1；
From the formula c (m)i＝(V-m1/ρ1-m2/ρ2……)/ρi) Calculating the theoretical glue loading m corresponding to the weight of the frameworki. And (3) calculating a corresponding comparison table of the weight of the framework and the glue filling amount according to the grade of every 5g of the change of the glue stock in consideration of the range of the weight fluctuation of the framework and the acceptable degree of the glue filling amount fluctuation. As in the following table:
the unit of the comparison table of the weight of the framework and the glue loading amount is as follows: g
During actual production, a group of framework weights are weighed, and a table is looked up to obtain the corresponding glue filling weight. If the weight 1912g of the framework is weighed, the required glue filling amount 1005g of table look-up is simple and easy to operate.
Claims (9)
1. A dynamic filling amount process method for a rubber material of a molded rubber composite product is characterized by comprising the following steps: a dynamic glue loading quantity mathematical model and a comparison table of framework materials and glue loading weight.
2. The process of claim 1, wherein the mathematical model of dynamic loading comprises:
a.V＝V1+V2+……Vi；
b.V＝m1/ρ1+m2/ρ2+……mi/ρi；
c.mi＝(V-m1/ρ1-m2/ρ2……)/ρi
d.M＝miη。
3. the process for dynamically filling a compound of a molded rubber composite product according to claim 1, wherein the table of the weight of the carcass versus the amount of the filled rubber comprises: skeleton group weight, glue loading weight, etc., as follows:
the unit of the comparison table of the weight of the framework and the glue loading amount is as follows: g
4. A dynamic glue amount mathematical model according to claim 2: a.V-V1 + V2+ … … Vi, wherein V is the mold cavity volume; v1 is one of the framework material volumes; v2 is another framework material volume therein; vi is the theoretical loading volume.
5. A mathematical model b.V of dynamic loading of glue according to claim 2, wherein m1/ρ 1+ m2/ρ 2+ … … mi/ρ i, where m1 is one of the qualities of the framework material; m2 is the mass of another framework material; mi is the theoretical glue filling weight; ρ 1 is the density of one of the framework materials; ρ 2 is the density of another framework material; ρ i is the density of the used compound.
6. The dynamic glue loading mathematical model c.M- η mi- η (V-M1/ρ 1-M2/ρ 2 … …)/ρ i according to claim 2, wherein M is the actual filling mass, η is the filling coefficient, V, ρ 1, ρ 2, ρ i are constants, M1, M2 are the actual weight of the framework material, and are variables, and M is in a function relationship with M1 and M2 ….
7. The mathematical model of dynamic loading of glue of claim 2 c.mi ═ (V-m1/ρ 1-m2/ρ 2 … …)/ρ i, wherein V, ρ 1, ρ 2, ρ i are constants; m1 and m2 are the actual weight of the framework material and are variables; mi is in function of m1, m2 ….
8. The mathematical model M mi η for dynamic loading of glue according to claim 2, wherein M is actual weight and η is filling factor.
9. The comparison table of the framework weight and the glue filling amount according to claim 3, wherein the glue filling weight is calculated by a dynamic glue filling amount mathematical model c, and is obtained by selecting a proper filling coefficient to calculate, and drawing the comparison table of the framework weight and the glue filling amount.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911365649.2A CN111086142A (en) | 2019-12-26 | 2019-12-26 | Dynamic filling amount process method for rubber material of molded rubber composite product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911365649.2A CN111086142A (en) | 2019-12-26 | 2019-12-26 | Dynamic filling amount process method for rubber material of molded rubber composite product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111086142A true CN111086142A (en) | 2020-05-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911365649.2A Pending CN111086142A (en) | 2019-12-26 | 2019-12-26 | Dynamic filling amount process method for rubber material of molded rubber composite product |
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Citations (7)
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| CN101492270A (en) * | 2009-01-05 | 2009-07-29 | 东南大学 | Framework type asphalt mixture gradation design method |
| CN101700690A (en) * | 2009-12-01 | 2010-05-05 | 宁国市海天力工业发展有限公司 | Production process of rubber diaphragm of automobile brake chamber |
| CN102643457A (en) * | 2012-04-26 | 2012-08-22 | 葛达旺 | Preparation method of vulcanized rubber sheet or granulous mould-pressed material |
| CN104655545A (en) * | 2015-03-19 | 2015-05-27 | 哈尔滨工业大学 | Method for measuring void ratio of macadam mixture |
| CN108345716A (en) * | 2018-01-15 | 2018-07-31 | 东南大学 | Asphalt dynamic mechanics parameter computational methods based on three-dimensional crosslinked network |
| EP2358517B1 (en) * | 2008-11-05 | 2018-10-03 | Aston Martin Lagonda Limited | Manufacture of a structural composites component |
| CN208697796U (en) * | 2018-07-18 | 2019-04-05 | 天津富长源橡塑制品有限公司 | A kind of rubber and plastic grid framework |
-
2019
- 2019-12-26 CN CN201911365649.2A patent/CN111086142A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2358517B1 (en) * | 2008-11-05 | 2018-10-03 | Aston Martin Lagonda Limited | Manufacture of a structural composites component |
| CN101492270A (en) * | 2009-01-05 | 2009-07-29 | 东南大学 | Framework type asphalt mixture gradation design method |
| CN101700690A (en) * | 2009-12-01 | 2010-05-05 | 宁国市海天力工业发展有限公司 | Production process of rubber diaphragm of automobile brake chamber |
| CN102643457A (en) * | 2012-04-26 | 2012-08-22 | 葛达旺 | Preparation method of vulcanized rubber sheet or granulous mould-pressed material |
| CN104655545A (en) * | 2015-03-19 | 2015-05-27 | 哈尔滨工业大学 | Method for measuring void ratio of macadam mixture |
| CN108345716A (en) * | 2018-01-15 | 2018-07-31 | 东南大学 | Asphalt dynamic mechanics parameter computational methods based on three-dimensional crosslinked network |
| CN208697796U (en) * | 2018-07-18 | 2019-04-05 | 天津富长源橡塑制品有限公司 | A kind of rubber and plastic grid framework |
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Application publication date: 20200501 |