CN107756702A - A kind of method for solving back-off structure slush moulding skin defects - Google Patents
A kind of method for solving back-off structure slush moulding skin defects Download PDFInfo
- Publication number
- CN107756702A CN107756702A CN201710990791.0A CN201710990791A CN107756702A CN 107756702 A CN107756702 A CN 107756702A CN 201710990791 A CN201710990791 A CN 201710990791A CN 107756702 A CN107756702 A CN 107756702A
- Authority
- CN
- China
- Prior art keywords
- slush moulding
- die cavity
- powder
- moulding die
- slush
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
- B29C41/04—Rotational or centrifugal casting, i.e. coating the inside of a mould by rotating the mould
-
- 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
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/34—Component parts, details or accessories; Auxiliary operations
- B29C41/36—Feeding the material on to the mould, core or other substrate
Abstract
The invention discloses a kind of method for solving back-off structure slush moulding skin defects, this method is that the separate chamber small bins consistent with the slush moulding die cavity for forming back-off structure are set in overall hopper, and separate chamber small bins are corresponding with the slush moulding die cavity for forming back-off structure.The segmentation that the present invention passes through hopper, make the powder packed amount of each slush moulding die cavity relatively uniform, during rotary loading, the touch opportunity of powder and slush moulding die cavity diverse location in separate chamber small bins is impartial, filling of the excessive or very few powder in the slush moulding die cavity for forming back-off structure is avoided, the trachoma of back-off structure appearance is efficiently solved and connects muscle defect.
Description
Technical field
The present invention relates to a kind of slush molding method, more particularly to a kind of method for solving back-off structure slush moulding skin defects.
Background technology
The complicated slush moulding product of existing back-off structure, such as glove box, C131DP upper products, because glove box uses PVC powder
Material, existing process condition can not meet back-off structure demand, and product occurs seriously connecting muscle trachoma defect, it is impossible to meets that client supplies
Demand, finally carry out manual slush moulding production；C131DP upper products use TPU powders, though powder flowbility is better than the PVC powder later and decadent stage of a school of thought
Dynamic property, but because its performance is unstable, powder fluidity is decayed during use, and product connects muscle, trachoma defect takes place frequently, and can only pass through
Slush moulding glue, which reprocesses, pours into a mould cleaning reprocesses the maintenance supply of material, assembly is artificial, waste product, mass loss.
In slush moulding production, because the presence of product back-off structure, causes during rotary loading, slush moulding powder is falling
Difficulty is entered in buckle structure, difficulty goes out, because trachoma defect occurs in powder attachment less, difficulty goes out region because excessive powder in the region that hardly possible is entered
Collection of drama, there is even muscle defect；High want is proposed to split mobility, the rotary speed of feeding in the presence of the product of the structure
Ask；FJC two kinds of powder stocks of existing PVC, TPU, the only most expensive TPU powder flowbilitys of price maintain to produce reluctantly, and PVC is because of it
Powder flowbility is poor, can not thoroughly meet the production of similar door panel structure；Because TPU powder flowbilitys are a variety of by environment, formula etc.
Factor influences, and its stability can not ensure, defect interruption occurs.
As shown in figure 1, be existing slush mold and bin structure, overall hopper 1 has a big hopper, on adapter 4
With the slush moulding die cavity 2 for forming left front door, left back door, right front door, right-rear-door glove box, the slush moulding die cavity 2 forms glove box, hand
Casing is back-off structure.
The content of the invention
Present invention aim to address above mentioned problem, and provide a kind of method for solving back-off structure slush moulding skin defects.
The present invention is directed to the larger back-off structure of breadth depth ratio, the less multi-cavity slush moulding product of accessory size, is devised
Independent bin structure, mobility and filling speed of the powder in die cavity are effectively increased, solves back-off structure slush moulding table
Company's muscle that skin often occurs, trachoma defect.
The method of the present invention is：Set the separate chamber consistent with the slush moulding die cavity for forming back-off structure small in overall hopper
Hopper, separate chamber small bins are corresponding with the slush moulding die cavity for forming back-off structure.
Beneficial effects of the present invention：
By the segmentation of hopper, make that the powder packed amount of each slush moulding die cavity is relatively uniform, and during rotary loading, separate chamber is small
The touch opportunity of powder and slush moulding die cavity diverse location in hopper is impartial, avoids excessive or very few powder and is forming back-off knot
Filling in the slush moulding die cavity of structure, efficiently solve the trachoma of back-off structure appearance and connect muscle defect.
Brief description of the drawings
Fig. 1 is the schematic perspective view of existing slush mold and bin structure.
Fig. 2 is the slush mold and bin structure schematic perspective view that the present invention uses.
Embodiment
Refer to shown in Fig. 2, the present embodiment is left front with being formed on adapter 4 by taking the door-plate product of the chamber of a mould four as an example
Door, left back door, right front door, the slush moulding die cavity 2 of right-rear-door glove box, the slush moulding die cavity 2 form glove box, and glove box is back-off knot
Structure.The present embodiment separate chamber small powder that slush moulding die cavity 2 of the increase by four with forming back-off structure is consistent in original overall hopper 1
Case 3, mould of four separate chamber small bins 3 to four slush moulding die cavitys 2 is changed to by the pattern of a pair four of original overall hopper 1 and die cavity
Formula, by the segmentation of overall hopper 1, make the powder packed amount of each slush moulding die cavity 2 relatively uniform, during rotary loading, solely
The touch opportunity of powder and the diverse location of slush moulding die cavity 2 in vertical chamber small bins 3 is impartial, avoids excessive or very few powder in shape
Filling into the slush moulding die cavity 2 of back-off structure, efficiently solve back-off structure occurs in former design trachoma and connect muscle defect.
The present invention can also solve the structure that the similar chamber of one mould of door-plate four goes out a set of product, four chamber epidermis category different products,
A whole set of it can only produce, it is impossible to the scarce slash problem that single die cavity flexibly produces.In independently cavity configuration application process is expected, pass through control
Powder whether there is in difference material chamber, to carry out single die cavity flexible production, as soon as example, chamber epidermis is only produced, by other three chambers material
Powder is thoroughly washed in a pan out in case, and the chamber powder for only retaining planned production is normally filled；Need produce two chamber epidermises when, by other two
Powder is normally filled without filling, two chamber powders of planned production in chamber hopper, and the structure can realize that any die cavity epidermis is soft
Property metaplasia production.
Claims (1)
- A kind of 1. method for solving back-off structure slush moulding skin defects, it is characterised in that：This method is：Set in overall hopper The separate chamber small bins consistent with the slush moulding die cavity of formation back-off structure, the separate chamber small bins are with forming warding off for back-off structure Mold cavity is corresponding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710990791.0A CN107756702A (en) | 2017-10-23 | 2017-10-23 | A kind of method for solving back-off structure slush moulding skin defects |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710990791.0A CN107756702A (en) | 2017-10-23 | 2017-10-23 | A kind of method for solving back-off structure slush moulding skin defects |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107756702A true CN107756702A (en) | 2018-03-06 |
Family
ID=61270029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710990791.0A Pending CN107756702A (en) | 2017-10-23 | 2017-10-23 | A kind of method for solving back-off structure slush moulding skin defects |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107756702A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114474534A (en) * | 2022-01-25 | 2022-05-13 | 长春富维安道拓汽车饰件系统有限公司 | Slush molding process capable of overcoming skin sand hole defect |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103085209A (en) * | 2013-02-16 | 2013-05-08 | 长春富维—江森自控汽车饰件系统有限公司 | Online heating powder box for slush molding machine |
| CN204450982U (en) * | 2015-02-13 | 2015-07-08 | 长城汽车股份有限公司 | A kind of slush moulding equipment |
| CN107199662A (en) * | 2017-06-15 | 2017-09-26 | 长春富维安道拓汽车饰件系统有限公司 | The double-colored slush molding method of fascia |
-
2017
- 2017-10-23 CN CN201710990791.0A patent/CN107756702A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103085209A (en) * | 2013-02-16 | 2013-05-08 | 长春富维—江森自控汽车饰件系统有限公司 | Online heating powder box for slush molding machine |
| CN204450982U (en) * | 2015-02-13 | 2015-07-08 | 长城汽车股份有限公司 | A kind of slush moulding equipment |
| CN107199662A (en) * | 2017-06-15 | 2017-09-26 | 长春富维安道拓汽车饰件系统有限公司 | The double-colored slush molding method of fascia |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114474534A (en) * | 2022-01-25 | 2022-05-13 | 长春富维安道拓汽车饰件系统有限公司 | Slush molding process capable of overcoming skin sand hole defect |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180306 |
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| RJ01 | Rejection of invention patent application after publication |