CN104723498A - Rubber coating injection molding device of windscreen wiper rod - Google Patents
Rubber coating injection molding device of windscreen wiper rod Download PDFInfo
- Publication number
- CN104723498A CN104723498A CN201410821773.6A CN201410821773A CN104723498A CN 104723498 A CN104723498 A CN 104723498A CN 201410821773 A CN201410821773 A CN 201410821773A CN 104723498 A CN104723498 A CN 104723498A
- Authority
- CN
- China
- Prior art keywords
- injection molding
- injection moulding
- encapsulate
- mold
- hard rod
- 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.)
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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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14008—Inserting articles into the mould
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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
- 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
- B29C45/2602—Mould construction elements
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a rubber coating injection molding device of a windscreen wiper rod. The rubber coating injection molding device is used for partially carrying out injection molding and rubber coating at a hard rod end to form a rubber sleeve assembled on a vehicle spherical column head, and a hard rod is a special-shaped rod body with a micro-spiral shape; the rubber coating injection molding device is provided with an open type injection molding mold; the hard rod end is horizontally arranged between an upper mold and a lower mold of the injection molding mold; the upper mold and the lower mold are provided with injection molding cavities corresponding to appearances of the upper and lower sides of the rubber sleeve at the hard rod end, and convex columns corresponding to concave holes in the rubber sleeve; and the upper mold and the lower mole are provided with storing grooves corresponding to the appearance of the residual part of the hard rod. With the adoption of the rubber coating injection molding device, the open type injection molding mold is adopted so that the space occupying problem of the hard rod is effectively overcome; and the positioning and the loading of the high-precision partial cavity and the hard rod are carried out so that the precision of the rubber sleeve of the hard rod end and the inner hole is improved.
Description
Technical field
The present invention relates to a kind of Design of Dies, particularly relate to a kind of encapsulate injection moulding apparatus of wiper bar.
Background technology
Wiper is the necessary assembly of the powered travel devices such as vehicle, keeps driver to the clear vision of road ahead under rain marquis weather.The structural design of wiper is very ripe already, but then still has the possibility and necessity that constantly improve in the structure with the attaching of vehicle phase.
For the convenience, the fastness that keep the continuity of the fan-shaped rocking action of wiper, compliance and wiper to assemble, as depicted in figs. 1 and 2, wiper bar 3 mostly adopts metallic rod skeleton 31(to call in the following text " rigid posts ") and periphery local (on the stomidium 311 mainly shown in Fig. 2) injection moulding encapsulate process, and the part of encapsulate is the key position connect with vehicle, the encapsulate part 32 of wiper bar is socketed on the spherical column cap of vehicle front, keeps certain tension holding capacity and the lubricity of rotation.And design due to the special construction of wiper bar, metallic rod skeleton is generally prefabricated semi-finished product and lineal measure is comparatively large, and some is even in bowing, is difficult to load in conventional injection molding machine implement batch injection molding operation.
Summary of the invention
In view of the defect that above-mentioned prior art exists, the object of the invention is the encapsulate injection moulding apparatus proposing a kind of wiper bar, solve the encapsulate injection moulding completing high-precision requirement in the longer rigid posts of semi-finished product.
Object of the present invention will be achieved by the following technical programs: a kind of encapsulate injection moulding apparatus of wiper bar, for making at portion of rigid posts end office (EO) injection moulding encapsulate the gum cover being secured to the spherical column cap of vehicle, described rigid posts is micro-spiral helicine special-shaped body of rod, it is characterized in that: described encapsulate injection moulding apparatus has open injection mold, hard rod end is placed horizontally between the upper die and lower die of injection mold, patrix and offer the corresponding injection moulding die cavity of hard rod end gum cover upper and lower sides profile and the projection of corresponding gum cover inward recess; And upper die and lower die are provided with the placement groove of corresponding rigid posts residue position profile.
Further, described counterdie is provided with positioning guide column, and described patrix correspondence is provided with guide hole, upper die and lower die mold closing and die sinking under the positioning and guiding of lead and guide hole.
Further, the gum-injecting port of described encapsulate injection moulding apparatus is located in the die cavity of patrix, and the injected plastics material of encapsulate is uniform by gravity from bottom to top in die cavity.
Further, injection moulding die cavity and the projection of a corresponding wiper bar gum cover are defined as a cave, and described encapsulate injection mold is provided with four caves side by side.
Apply encapsulate injection moulding apparatus of the present invention, by open injection mold, effectively overcome the volume exclusion problem of rigid posts, and loaded by the location of high-precision local die cavity and rigid posts, improve the precision of hard rod end gum cover and endoporus thereof.
Accompanying drawing explanation
Fig. 1 is the surface structure schematic diagram of the wiper bar of injection moulded object of the present invention.
Fig. 2 is that the details of wiper boom end presents figure.
Fig. 3 is the structural representation of encapsulate injection moulding apparatus counterdie of the present invention.
Fig. 4 is the structural representation of device patrix described in Fig. 3.
Detailed description of the invention
Below just accompanying drawing in conjunction with the embodiments, is described in further detail the specific embodiment of the present invention, is easier to understand, grasp to make technical solution of the present invention.
Because the aforementioned inherent structure for wiper bar is unfavorable for carrying out the operation of injection moulding encapsulate in conventional injection molding machine, this creation innovation proposes a kind of encapsulate injection moulding apparatus of wiper bar, adopt open, micro-injection moulding mould, solve the encapsulate injection moulding completing high-precision requirement in the longer rigid posts of semi-finished product.
As shown in Figures 1 to 4, the encapsulate injection moulding apparatus of this kind of wiper bar, for making at portion of rigid posts end office (EO) injection moulding encapsulate the gum cover being secured to the spherical column cap of vehicle, this rigid posts is micro-spiral helicine special-shaped body of rod.Feature structure from this encapsulate injection moulding apparatus: it is open injection mold, be provided with relatively-stationary counterdie on the table and along guide post towards counterdie near or away from patrix.Respectively: counterdie 1 is provided with the injection moulding die cavity 111 of profile and the projection 112 of corresponding gum cover inward recess on the downside of corresponding hard rod end gum cover, and registration holes is provided with locating dowel 113 set by corresponding rigid posts stomidium 311 side, improve the loading registration degree treating the rigid posts of encapsulate further.
In addition, counterdie 1 is also provided with the placement groove 12 of the position accommodation of corresponding rigid posts residue, form fit.In order to the loading Position location accuracy of this rigid posts can be improved further, also can add pad 13 at the avris of this placement groove, realize strong fix.
Moreover patrix 2 is provided with the injection moulding die cavity 211 of profile on the upside of corresponding hard rod end gum cover, and patrix 2 is provided with equally, and corresponding rigid posts residue position holds, the placement groove 22 of form fit.As the necessary component of injection mold---gum-injecting port 23 to be located in patrix and to be connected with injection moulding die cavity 211, and the injected plastics material of encapsulate is uniform by gravity from bottom to top in die cavity.
Because mould needs die sinking repeatedly, mold closing operation, be different from conventional injection molding machine, the open and close mould precision of this kind of open encapsulate injection moulding apparatus also needs to be ensured.So counterdie is provided with positioning guide column, patrix correspondence is provided with guide hole, upper die and lower die mold closing and die sinking under the positioning and guiding of lead and guide hole.
For improving the efficiency of this encapsulate injection moulding apparatus, injection moulding die cavity and the projection of a corresponding wiper bar gum cover are defined as a cave, and encapsulate injection mold is provided with four caves side by side.And in counterdie 1, four die cavities and projection can be set to a module 11, in patrix 2, four die cavities be set to another module 21, and module 11 and module 21 can be replaced by detachable, improve many applicabilities of device further.
In actual injection molding operation, connect and fix between upper die and lower die hard rod end being placed horizontally at injection mold, then manipulate mold closing, gum-injecting port enters glue, die sinking again after formed product, direct taking-up rigid posts, the encapsulate part meeting precision and performance requirement is firmly coated on it, for this wiper bar, can two ends by flow process operation.
Apply encapsulate injection moulding apparatus of the present invention, by open injection mold, effectively overcome the volume exclusion problem of rigid posts, and loaded by the location of high-precision local die cavity and rigid posts, improve the precision of hard rod end gum cover and endoporus thereof.
The present invention still has numerous embodiments, all employing equivalents or equivalent transformation and all technical schemes formed, and all drops within protection scope of the present invention.
Claims (4)
1. the encapsulate injection moulding apparatus of a wiper bar, for making at portion of rigid posts end office (EO) injection moulding encapsulate the gum cover being secured to the spherical column cap of vehicle, described rigid posts is micro-spiral helicine special-shaped body of rod, it is characterized in that: described encapsulate injection moulding apparatus has open injection mold, hard rod end is placed horizontally between the upper die and lower die of injection mold, patrix and offer the corresponding injection moulding die cavity of hard rod end gum cover upper and lower sides profile and the projection of corresponding gum cover inward recess; And upper die and lower die are provided with the placement groove of corresponding rigid posts residue position profile.
2. the encapsulate injection moulding apparatus of a kind of wiper bar according to claim 1, it is characterized in that: described counterdie is provided with positioning guide column, described patrix correspondence is provided with guide hole, upper die and lower die mold closing and die sinking under the positioning and guiding of lead and guide hole.
3. the encapsulate injection moulding apparatus of a kind of wiper bar according to claim 1, is characterized in that: the gum-injecting port of described encapsulate injection moulding apparatus is located in the die cavity of patrix, and the injected plastics material of encapsulate is uniform by gravity from bottom to top in die cavity.
4. the encapsulate injection moulding apparatus of a kind of wiper bar according to claim 1, is characterized in that: injection moulding die cavity and the projection of a corresponding wiper bar gum cover are defined as a cave, and described encapsulate injection mold is provided with four caves side by side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410821773.6A CN104723498A (en) | 2014-12-26 | 2014-12-26 | Rubber coating injection molding device of windscreen wiper rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410821773.6A CN104723498A (en) | 2014-12-26 | 2014-12-26 | Rubber coating injection molding device of windscreen wiper rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104723498A true CN104723498A (en) | 2015-06-24 |
Family
ID=53448204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410821773.6A Pending CN104723498A (en) | 2014-12-26 | 2014-12-26 | Rubber coating injection molding device of windscreen wiper rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104723498A (en) |
-
2014
- 2014-12-26 CN CN201410821773.6A patent/CN104723498A/en active Pending
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150624 |
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| RJ01 | Rejection of invention patent application after publication |