CN216329829U - Anti-deformation injection molding die for arc-shaped decorative plate - Google Patents
Anti-deformation injection molding die for arc-shaped decorative plate Download PDFInfo
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- CN216329829U CN216329829U CN202122978397.XU CN202122978397U CN216329829U CN 216329829 U CN216329829 U CN 216329829U CN 202122978397 U CN202122978397 U CN 202122978397U CN 216329829 U CN216329829 U CN 216329829U
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Abstract
The utility model discloses an anti-deformation injection molding die for an arc-shaped decorative plate, which comprises: the mould comprises an upper mould and a lower mould, wherein an arc-shaped cavity is arranged on the parting surface of the upper mould. The lower die is internally provided with a mounting groove, and a gear column body is rotationally arranged in the mounting groove. The gear cylinder is provided with a fan-shaped insert, and two sides of the fan-shaped insert are provided with inverted buckle chutes. The fan-shaped insert and the gear cylinder are coaxially arranged, and the upper die is provided with a rack. The gear cylinder is provided with a glue inlet coaxial with the gear cylinder, and the arc surface of the fan-shaped insert is provided with a glue outlet communicated with the glue inlet. The utility model has the beneficial effects that: the problem that the arc-shaped decorative plate is deformed due to forced ejection and demolding of the inverted slide bar can be solved. Meanwhile, the sprue at the glue outlet can be automatically cut off by utilizing the shearing force generated by the relative motion between the fan-shaped insert and the formed arc-shaped decorative plate without additionally arranging a sprue cutting mechanism, so that the structure of the mold is simplified. In addition, the mold opening and the product demolding are synchronous, and the production efficiency is greatly improved.
Description
Technical Field
The utility model relates to the technical field of injection molds, in particular to an anti-deformation injection molding mold for an arc-shaped decorative plate.
Background
Arc decorative board is equipped with arc back-off draw runner on the inner wall as outward appearance piece often and assembles with the spout on the product, realizes that connection structure hides and does not influence the pleasing to the eye of product. The mould of current shaping arc decorative board adopts the inner wall of fixed mold insert shaping arc decorative board and the back-off draw runner of inner wall mostly, and set up a plurality of ejector pins or gas pole on fixed mold insert with the ejecting drawing of patterns of arc decorative board, because the inner wall of arc decorative board has this kind of back-off characteristic of back-off draw runner, ejector pin or gas pole need be to the ejecting drawing of patterns of back-off draw runner by force when with the ejecting drawing of patterns of arc decorative board, just so need great ejecting power, cause the arc decorative board to be ejecting out of shape easily, even, the back-off draw runner on the inner wall of arc decorative board is damaged, and then cause the arc decorative board to scrap.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems in the prior art, the utility model provides an anti-deformation injection molding mold for an arc-shaped decorative plate.
In order to achieve the above object, the injection molding mold for an anti-deformation arc-shaped decorative plate provided by the utility model comprises: the mould comprises an upper mould and a lower mould, wherein an arc-shaped cavity for forming the appearance surface of the arc-shaped decorative plate is arranged on the parting surface of the upper mould. The lower die is internally provided with a mounting groove, and a gear column body is rotationally arranged in the mounting groove. The gear cylinder body is provided with a fan-shaped insert used for forming the inner wall of the arc-shaped decorative plate, and the two sides of the fan-shaped insert are provided with inverted buckle chutes of two arc inverted buckle sliding strips for forming the inner wall of the arc-shaped decorative plate. The fan-shaped insert is coaxial with the gear cylinder, and the upper die is provided with a rack which can drive the gear cylinder to rotate so as to drive the arc-shaped surface of the fan-shaped insert to rotate into the arc-shaped cavity. The gear cylinder is provided with a glue inlet coaxial with the gear cylinder, and the arc surface of the fan-shaped insert is provided with a glue outlet communicated with the glue inlet.
Preferably, the gear cylinder is cast integrally with the segment insert and then machined.
Preferably, the inner wall of the mounting groove is provided with a guide rail, and the inverted-buckle sliding grooves on the two sides of the fan-shaped insert slide on the guide rail.
Compared with the prior art, the utility model has the beneficial effects that: the inner wall of the arc-shaped decorative plate and the characteristics of the inverted buckle slide strip on the inner wall are formed by adopting the rotatable fan-shaped insert, and the rack arranged on the upper die is utilized to drive the fan-shaped insert to rotate so as to realize the demoulding of the inverted buckle slide strip, so that the problem that the inverted buckle slide strip is forced to eject out the demoulding to cause the deformation of the arc-shaped decorative plate can be avoided. Meanwhile, when the fan-shaped insert rotates for demolding, the sprue at the glue outlet can be automatically cut off by utilizing the shearing force generated by the relative motion between the fan-shaped insert and the molded arc-shaped decorative plate, and a sprue cutting mechanism is not additionally arranged, so that the mold structure is simplified. In addition, the rack is driven to drive the fan-shaped insert to rotate by utilizing the mold opening force of the upper mold, so that the mold opening and the product demolding are synchronous, and the production efficiency is greatly improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a perspective view of an arc-shaped decorative plate according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of a fully clamped state according to an embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view illustrating a fully opened mold according to an embodiment of the present invention;
the objects, features and advantages of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The utility model provides an anti-deformation injection molding mold for an arc-shaped decorative plate.
Referring to fig. 1 to 3, fig. 1 is a perspective structural view of an arc-shaped decorative plate in an embodiment of the present invention, fig. 2 is a schematic cross-sectional view of the arc-shaped decorative plate in a fully mold-closed state in the embodiment of the present invention, and fig. 3 is a schematic cross-sectional view of the arc-shaped decorative plate in a fully mold-opened state in the embodiment of the present invention.
As shown in fig. 1 to 3, in an embodiment of the present invention, the injection molding mold for deformation-preventing arc decorative plate includes: the decorative plate comprises an upper die 200 and a lower die 300, wherein an arc cavity 210 for forming the appearance surface of the arc decorative plate 100 is arranged on the parting surface of the upper die 200. The lower mold 300 is provided therein with a mounting groove 310, and the gear cylinder 400 is rotatably provided in the mounting groove 310. The gear cylinder 400 is provided with a sector insert 500 for molding the inner wall of the arc-shaped decorative plate 100, and the two sides of the sector insert 500 are provided with inverted sliding grooves 510 for molding the two arc-shaped inverted sliding strips 110 of the inner wall of the arc-shaped decorative plate 100. The sector insert 500 is coaxially disposed with the gear cylinder 400, and the upper mold 200 is provided with a rack 600 capable of driving the gear cylinder 400 to rotate so as to drive the arc surface of the sector insert 500 to rotate into the arc chamber 210. The gear cylinder 400 is provided with a glue inlet 410 coaxial with the gear cylinder, and the arc-shaped surface of the fan-shaped insert 500 is provided with a glue outlet 520 communicated with the glue inlet 410.
As shown in fig. 2, when the mold is completely closed, the arc surface of the fan-shaped insert 500 rotates into the arc cavity 210, the glue outlet 520 on the arc surface of the fan-shaped insert 500 faces the arc cavity 210, at this time, the injection molding machine can inject glue through the glue inlet 410 on the gear cylinder 400, and the glue is injected into the arc cavity 210 through the glue outlet 520, thereby completing injection molding. As shown in fig. 3, when the mold is opened, the rack 600 moves along with the upper mold 200 to drive the sector insert 500 to rotate until the sector insert 500 is completely received in the mounting groove 310, so as to realize the synchronization between the mold opening and the mold release of the arc decorative plate 100.
According to the technical scheme, the rotatable fan-shaped insert 500 is adopted to form the inner wall of the arc-shaped decorative plate 100 and the characteristics of the inverted slide strip 110 on the inner wall, the rack 600 arranged on the upper die 200 is used for driving the fan-shaped insert 500 to rotate to realize the demolding of the inverted slide strip 110, and the problem that the inverted slide strip 110 is forcedly ejected out to be demolded to cause the deformation of the arc-shaped decorative plate 100 is solved. Meanwhile, when the fan-shaped insert 500 rotates for demolding, a gate at the glue outlet 520 can be automatically cut off by utilizing a shearing force generated by relative motion between the fan-shaped insert 500 and the molded arc-shaped decorative plate 100, and a gate cutting mechanism is not additionally arranged, so that the mold structure is simplified. In addition, the rack 600 is driven by the mold opening force of the upper mold 200 to drive the fan-shaped insert 500 to rotate, so that mold opening and product demolding are synchronous, and production efficiency is greatly improved.
Further, in the present embodiment, the gear cylinder 400 and the sector insert 500 are integrally cast and then machined, so as to ensure the connection strength and the service life of the gear cylinder 400 and the sector insert 500.
Further, in this embodiment, the inner wall of the mounting groove 310 is provided with a guide rail 311, and the inverted chutes 510 at two sides of the sector insert 500 slide on the guide rail 311, so that the sector insert 500 is prevented from shifting during frequent rotation, and the precision of the transmission connection between the gear cylinder 400 and the rack 600 is ensured.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the technical solutions of the present invention, which are made by using the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (3)
1. The utility model provides an arc decorative board injection moulding mould of preapring for an unfavorable turn of events shape which characterized in that includes: the parting surface of the upper die is provided with an arc-shaped cavity for forming the appearance surface of the arc-shaped decorative plate; an installation groove is formed in the lower die, and a gear cylinder is rotationally arranged in the installation groove; the gear cylinder is provided with a fan-shaped insert used for forming the inner wall of the arc-shaped decorative plate, and the two sides of the fan-shaped insert are provided with inverted buckle chutes of two arc-shaped inverted buckle sliding strips for forming the inner wall of the arc-shaped decorative plate; the sector insert and the gear cylinder are coaxially arranged, and the upper die is provided with a rack which can drive the gear cylinder to rotate so as to drive the arc-shaped surface of the sector insert to rotate into the arc-shaped cavity; the gear column body is provided with a glue inlet coaxial with the gear column body, and the arc-shaped surface of the fan-shaped insert is provided with a glue outlet communicated with the glue inlet.
2. The injection mold for deformation-resistant arc-shaped decorative plate according to claim 1, wherein the gear cylinder and the sector insert are integrally cast and then machined.
3. The injection molding mold for the anti-deformation arc-shaped decorative plate according to claim 1, wherein a guide rail is provided on an inner wall of the mounting groove, and the inverted-buckle sliding grooves on both sides of the fan-shaped insert slide on the guide rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122978397.XU CN216329829U (en) | 2021-11-30 | 2021-11-30 | Anti-deformation injection molding die for arc-shaped decorative plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122978397.XU CN216329829U (en) | 2021-11-30 | 2021-11-30 | Anti-deformation injection molding die for arc-shaped decorative plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216329829U true CN216329829U (en) | 2022-04-19 |
Family
ID=81156346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122978397.XU Active CN216329829U (en) | 2021-11-30 | 2021-11-30 | Anti-deformation injection molding die for arc-shaped decorative plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216329829U (en) |
-
2021
- 2021-11-30 CN CN202122978397.XU patent/CN216329829U/en active Active
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