CN111873279A - Mold and method for manufacturing complex parts - Google Patents
Mold and method for manufacturing complex parts Download PDFInfo
- Publication number
- CN111873279A CN111873279A CN202010881817.XA CN202010881817A CN111873279A CN 111873279 A CN111873279 A CN 111873279A CN 202010881817 A CN202010881817 A CN 202010881817A CN 111873279 A CN111873279 A CN 111873279A
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- China
- Prior art keywords
- mold
- die
- compression molding
- making
- pouring chamber
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Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 238000000034 method Methods 0.000 title claims description 7
- 239000013013 elastic material Substances 0.000 claims abstract description 15
- 238000002347 injection Methods 0.000 claims abstract description 12
- 239000007924 injection Substances 0.000 claims abstract description 12
- 230000006835 compression Effects 0.000 claims abstract description 8
- 238000007906 compression Methods 0.000 claims abstract description 8
- 238000000748 compression moulding Methods 0.000 claims description 18
- 238000012546 transfer Methods 0.000 claims description 13
- 238000005266 casting Methods 0.000 claims description 10
- 238000003825 pressing Methods 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 4
- 230000006978 adaptation Effects 0.000 claims description 3
- 239000002184 metal Substances 0.000 description 10
- 229920002635 polyurethane Polymers 0.000 description 5
- 239000004814 polyurethane Substances 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
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
- B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
- B29C39/22—Component parts, details or accessories; Auxiliary operations
- B29C39/26—Moulds or cores
-
- 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
- B29C33/30—Mounting, exchanging or centering
- B29C33/305—Mounting of moulds or mould support plates
-
- 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
- B29C33/30—Mounting, exchanging or centering
- B29C33/306—Exchangeable mould parts, e.g. cassette moulds, mould inserts
-
- 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
- B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
- B29C39/02—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles
- B29C39/10—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. casting around inserts or for coating articles
-
- 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
- B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
- B29C39/22—Component parts, details or accessories; Auxiliary operations
- B29C39/36—Removing moulded articles
-
- 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
- B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
- B29C39/22—Component parts, details or accessories; Auxiliary operations
- B29C39/38—Heating or cooling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a mold for manufacturing a complex part, which comprises a lower mold and a middle mold, wherein the lower mold and the middle mold are enclosed to form a pouring chamber with an opening at the upper end, the upper end of the middle mold is detachably connected with a compression mold, and the upper end of the pouring chamber is provided with an upper mold matched with the opening of the pouring chamber. According to the characteristics of the elastic material, the invention abandons a pure pouring mode, and adopts two modes of pressure injection and pouring to manufacture, the upper die is utilized to perform pressure injection on the elastic material in the die, and the outer side of the die is heated, so that the elastic material can be filled in the core die without bubbles, and a complete product is formed.
Description
Technical Field
The invention relates to the technical field of mold manufacturing, in particular to a mold and a method for manufacturing a complex part.
Background
The overflowing piece in the slurry pump is used for conveying solid-liquid mixed ore fluid, and an impeller in the overflowing piece can be in contact with solid ore, so that the impeller is easy to wear.
If the impeller of the overflowing part is made of metal with high stress, the final effect is good, the service life of the overflowing part is prolonged, but under the condition that a slurry pump works day to day, the overflowing part made of the high-stress metal can only be replaced by two months or three months, the high-stress metal is expensive, and the cost is greatly increased by frequently replacing the overflowing part.
In the prior art, a mode of combining an elastic material and metal is adopted, the metal is used as a framework inside, and rubber is arranged on the outer side, so that the cost is reduced, and the service life of the overflowing part is prolonged. However, when a relatively complex part such as a flow passage part is produced by using a mold, because the interior of the part is relatively complex, the elastic material is difficult to be distributed in the whole mold by adopting a common casting mode, or air holes exist in the part, so that the quality of the produced part is poor, and even the situation that the part cannot be molded can occur.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the defects of the prior art are overcome, the mold for manufacturing the complex parts is provided, the mold can enable elastic materials to be molded without air holes, and the mold is convenient to demould.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a mould of compound miscellaneous part of preparation, includes lower mould and well mould, lower mould and well mould enclose to close and form the pouring chamber of upper end open-ended, the upper end of well mould can be dismantled and connect the transfer mould, the upper end of pouring chamber is equipped with the last mould with pouring chamber opening looks adaptation.
Further, the compression-molded dies include a first compression-molded die and a second compression-molded die, which are respectively installed at both sides of the middle die.
Further, one side of the middle die close to the pouring chamber is obliquely arranged, and the compression molding die and the corresponding side of the compression molding die are obliquely arranged.
Furthermore, the included angle between the inclined side of the pressure injection mold and the vertical direction is 8-20 degrees.
Further, be equipped with the bolt hole on the transfer mold, transfer mold and well mould threaded connection spare are connected.
Further, a core mold is arranged inside the pouring chamber, a positioning cone is arranged below the core mold, and the positioning cone is arranged in the lower mold.
Further, handles are arranged on the outer side of the middle die and the outer side of the lower die.
Furthermore, an operation hole is formed in the position, corresponding to the bolt hole of the compression molding die, of the upper die.
Based on the same inventive concept, a method for manufacturing complex parts comprises the following steps:
firstly, stacking a lower die, a positioning cone, a middle die and a core die together to form a pouring chamber;
secondly, pressing the compression molding die against the core die, connecting the compression molding die and the middle die together by using a threaded connecting piece, and casting a pre-calculated and melted elastic material into a casting chamber;
thirdly, pressing the upper die into an opening at the upper end of the pouring chamber;
fourthly, pressing the upper die from the outer side of the upper die, and heating the outer side of the upper die;
fifthly, stopping heating when no bubble exists in the mold; after the part is formed, cooling;
and sixthly, taking out the threaded connecting piece from the operation hole, taking out the upper die, detaching the middle die and taking out the product.
The invention has the beneficial effects that:
1. according to the characteristics of the elastic material, a pure pouring mode is abandoned, and two modes of pressure injection and pouring are adopted for manufacturing, the elastic material in the mold is subjected to pressure injection by utilizing the upper mold and is heated at the outer side of the mold, so that the core mold can be filled with the elastic material without bubbles, and a complete product is formed;
2. for the convenience of demoulding, a compression mold is arranged between the middle mold and the upper mold, and the joint of the compression mold and the middle mold is inclined, so that after a product is finished conveniently, the upper mold and the compression mold can be easily taken out firstly, and a core mold with the product can be taken out later.
Drawings
FIG. 1 is a cross-sectional view of the present embodiment;
FIG. 2 is a schematic view showing the construction of the pouring chamber in this embodiment;
FIG. 3 is a schematic view of the pouring assembly of this embodiment;
FIG. 4 is a schematic view of the structure of the middle mold in this embodiment;
fig. 5 is a schematic structural diagram of the medium pressure injection mold of the present embodiment.
In the figure: 1-positioning cone, 2-product, 3-lower die, 4-middle die, 5-core die, 6-compression molding die, 7-handle, 8-upper die and 9-bolt.
Detailed Description
The invention is further explained with reference to the drawings and the embodiments.
Referring to FIGS. 1 to 5: the utility model provides a mould of compound miscellaneous part of preparation, includes lower mould 3 and well mould 4, lower mould 3 encloses with well mould 4 and closes the pouring chamber that forms upper end open-ended, the upper end of well mould 4 can be dismantled and connect transfer mould 6, the upper end of pouring chamber is equipped with the last mould 8 with pouring chamber opening looks adaptation.
The advantages of the above scheme are: according to the characteristics of the elastic material, a pure pouring mode is abandoned, and two modes of pressure injection and pouring are adopted for manufacturing, the upper die 8 is utilized for pressure injection of the elastic material in the die, and the outer side of the die is heated, so that the core die 5 can be filled with the elastic material, no air bubbles exist, and the complete product 2 is formed.
In this embodiment, the elastic material is polyurethane, which has a large elastic modulus and a large stress, and is more suitable for industrial applications.
Referring to fig. 2, the positioning cone 1 is firstly placed into the lower die 3, and then the core die 5 and the middle die 4 are assembled, wherein the positioning cone 1 plays a role in positioning the core die 5; in addition, a bolt 9 on the top of the middle mold 4 is connected with a compression mold 6, and the lower end of the compression mold 6 is abutted to the core mold 5, so that the position of the core mold 5 can be fixed, and the core mold 5 is prevented from moving during pouring. A pouring chamber is formed inside by stacking the lower mold 3, the core mold 5, the middle mold 4, and the transfer mold 6.
In this embodiment, the middle mold 4 is a detachable structure, and specifically, the middle mold 4 can be formed by combining the left middle mold 4 and the right middle mold 4; meanwhile, the transfer mold 6 is also divided into a first transfer mold 6 and a second transfer mold 6, the first transfer mold 6 being mounted on the left middle mold 4, the second transfer mold 6 being mounted on the right middle mold 4. The middle mold 4 and the compression mold 6 are separated by the same number.
One side that well mould 4 is close to the pouring chamber sets up for leaning out, and the one side slope that the inclined plane of transfer mold 6 and well mould 4 contacted sets up promptly, and the contained angle that the inclined side that specifically can transfer mold 6 and vertical face is 10 to make things convenient for follow-up form removal. The design of the angle is that the mould is made of metal, the friction angle between the metal is generally 10 degrees, namely when the inclination angle between two metal blocks is more than or equal to 10 degrees, the metal blocks can be separated easily, and when the inclination angle is less than 10 degrees, for example, 8 degrees, the required force is larger; with an angle greater than 10 deg., it is easier to separate the two metal blocks, but the area occupied is greater.
Referring to fig. 3, polyurethane is poured into the casting chamber, and after the pouring is completed, the upper mold 8 is pressed into the open end of the casting chamber, sealing the casting chamber. At the same time, the upper part of the upper mold 8 is pressed against the inside of the mold, and the mold is heated, so that the polyurethane can fill the entire core mold 5 in the mold by the injection molding of the upper mold 8 and the heating treatment of the outside of the mold. The whole pressure injection process can be completed in the vulcanizing machine, and the vulcanizing machine can simultaneously complete the pressing of the upper die 8 and the heating of the die.
After the injection molding treatment, the polyurethane is filled in the entire core mold 5 without bubbles, heating and pressing are stopped, and after completion of cooling, the core mold 5 is taken out, and the core mold 5 and the product 2 are separated.
In the present embodiment, the first and second electrodes are,
in the embodiment, the handles 7 are arranged on the outer sides of the middle die 4 and the lower die 3, so that subsequent demolding is facilitated; in addition, an operation hole is formed in the upper die 8 at a position corresponding to the bolt 9, the operation hole is a through hole, and when the upper die is removed, the bolt 9 can be taken out from the operation hole first, and then the subsequent removal processing is performed.
A method of making a complex component comprising the steps of:
firstly, stacking a lower die, a positioning cone, a middle die and a core die together to form a pouring chamber;
secondly, pressing the compression molding die against the core die, connecting the compression molding die and the middle die together by using a threaded connecting piece, and casting melted polyurethane calculated in advance into a casting chamber;
thirdly, pressing the upper die into an opening at the upper end of the pouring chamber;
fourthly, pressing the upper die from the outer side of the upper die, and heating the outer side of the upper die;
fifthly, stopping heating when no bubble exists in the mold; after the part is formed, cooling;
and sixthly, taking out the bolt from the operation hole, taking out the upper die and the compression molding die, detaching the middle die, taking out the core die, and separating the core die and the product to obtain the product. When the upper die is taken out, the pressure injection die can be taken out conveniently due to the inclined arrangement of the pressure injection die and the middle die, and the most difficult first-step die removal treatment is completed; the middle die can be easily pulled out from two sides by the design of the split structure of the middle die, and the second-step die removal treatment is completed; and subsequently, taking out the core mold with the product, and finally, separating the core mold from the product to obtain the product.
The present invention is not limited to the above embodiments, and various combinations and modifications of the above technical features may be provided for those skilled in the art, and modifications, variations, equivalents, or uses of the structure or method of the present invention in other fields without departing from the spirit and scope of the present invention are included in the protection scope of the present invention.
Claims (9)
1. A mold for manufacturing a complex part, characterized in that: including lower mould and well mould, lower mould and well mould enclose to close and form upper end open-ended pouring chamber, the upper end of well mould can be dismantled and connect the transfer mould, the upper end of pouring chamber is equipped with the last mould with pouring chamber opening looks adaptation.
2. The mold for making a complex part according to claim 1, wherein: the compression molding dies comprise a first compression molding die and a second compression molding die, and the first compression molding die and the second compression molding die are respectively installed on two sides of the middle die.
3. The mold for making a complex part according to claim 2, wherein: one side of the middle die close to the pouring chamber is obliquely arranged, and the compression molding die and the corresponding side of the compression molding die are obliquely arranged.
4. A mold for making a complex part according to claim 3, characterized in that: the included angle between the inclined side of the compression mold and the vertical direction is 8-20 degrees.
5. The mold for making a complex part according to claim 4, wherein: the injection mold is provided with a bolt hole and is connected with a middle mold threaded connecting piece.
6. The mold for making a complex part according to claim 1, wherein: a core mold is arranged inside the pouring chamber, a positioning cone is arranged below the core mold, and the positioning cone is arranged in the lower mold.
7. The mold for making a complex part according to claim 1, wherein: handles are arranged on the outer side of the middle die and the outer side of the lower die.
8. The mold for making a complex part according to claim 5, wherein: and an operation hole is formed in the position of the upper die corresponding to the bolt hole of the compression molding die.
9. A method of making a complex component, comprising: the method comprises the following steps:
firstly, stacking a lower die, a positioning cone, a middle die and a core die together to form a pouring chamber;
secondly, connecting a compression molding die with a bolt above the middle die, and then casting a molten elastic material which is calculated in advance into a casting chamber;
thirdly, pressing the upper die into an opening at the upper end of the pouring chamber;
fourthly, pressing the upper die from the outer side of the upper die, and heating the outer side of the upper die;
fifthly, stopping heating when no bubble exists in the mold; after the part is formed, cooling;
and sixthly, taking out the threaded connecting piece from the operation hole, taking out the upper die, detaching the middle die and taking out the product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010881817.XA CN111873279A (en) | 2020-08-28 | 2020-08-28 | Mold and method for manufacturing complex parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010881817.XA CN111873279A (en) | 2020-08-28 | 2020-08-28 | Mold and method for manufacturing complex parts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111873279A true CN111873279A (en) | 2020-11-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010881817.XA Pending CN111873279A (en) | 2020-08-28 | 2020-08-28 | Mold and method for manufacturing complex parts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111873279A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102267209A (en) * | 2011-07-21 | 2011-12-07 | 江苏扬州合力橡胶制品有限公司 | Forming die for vibration isolating support seat |
| CN102423911A (en) * | 2011-11-03 | 2012-04-25 | 重庆大学 | Precision forming mold for engineering composite material transmission pieces |
| CN212445991U (en) * | 2020-08-28 | 2021-02-02 | 湖南国发控股有限公司 | Mould for manufacturing complex parts |
-
2020
- 2020-08-28 CN CN202010881817.XA patent/CN111873279A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102267209A (en) * | 2011-07-21 | 2011-12-07 | 江苏扬州合力橡胶制品有限公司 | Forming die for vibration isolating support seat |
| CN102423911A (en) * | 2011-11-03 | 2012-04-25 | 重庆大学 | Precision forming mold for engineering composite material transmission pieces |
| CN212445991U (en) * | 2020-08-28 | 2021-02-02 | 湖南国发控股有限公司 | Mould for manufacturing complex parts |
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| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20231208 Address after: No. 86 Kaikai Road, Huairou District, Beijing, 101400 Applicant after: Huang Zhiqi Address before: Room 2701, building 1, yanchuanshan ecological park, No. 35, Meilin street, Yuhua District, Changsha City, Hunan Province, 410011 Applicant before: Hunan Guofa Holding Co.,Ltd. |
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| TA01 | Transfer of patent application right |