CN203580107U - Movable die for plastic suction packaging box fastener - Google Patents
Movable die for plastic suction packaging box fastener Download PDFInfo
- Publication number
- CN203580107U CN203580107U CN201320497410.2U CN201320497410U CN203580107U CN 203580107 U CN203580107 U CN 203580107U CN 201320497410 U CN201320497410 U CN 201320497410U CN 203580107 U CN203580107 U CN 203580107U
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- arc surface
- right arc
- left arc
- die
- middle ring
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Abstract
The utility model discloses a movable die for a plastic suction packaging box fastener. The movable die comprises an outer die and an inner die, wherein the upper end of the inner die is in a shape of a sphere and comprises a left arc surface, a right arc surface and a middle ring surface, the left arc surface and the right arc surface are movably connected with the two sides of the middle ring surface respectively by virtue of flanges, the flanges are internally tangent to the inner side surface of the middle ring surface, at least one spring is arranged between the left arc surface and the right arc surface, the centers of the inner sides of the left arc surface and the right arc surface are articulated to a movable rod respectively, the two movable rods are mutually connected with each other, the connecting part of the two movable rods is articulated to a pull rod, and the lower end of the pull rod is internally tangent to the interior of a hole formed in a cylinder at the lower end of the inner die. Compared with the prior art, the plastic suction packaging box fastener has the beneficial effects that as the upper end of the inner die is in the shape of the sphere and comprises the left arc surface, the right arc surface and the middle ring surface, the left arc surface and the right arc surface can gather together towards the middle ring surface under the pulling of the pull rod, and the formed fastener can be lightly demoulded; as after the tension disappears, the left arc surface and the right arc surface go back to the shapes under the elastic force of the spring, and the production continues to be carried out, the movable die is convenient and practical.
Description
Technical field
The utility model relates to a kind of flexible mould of plastic packing box fastener.
Background technology
At the opening part of plastic packing box, be typically provided with up and down the moving fastening of being easy to open of coordinating and fastening, this fastener comprises a protruding fixture block and a narrower eck.In existing production process; use internal mold and an external mold of a fixed profile; after external mold matched moulds, compressed air is blown into plastic sheet, internal mold is enveloped, after formed product; external mold is opened; machine clips the fastener demoulding of moulding, but because the eck of fastener is narrower, is not easy the demoulding; or when the demoulding, damage fastener, conventionally go back push rod structure assisted demoulding.
Utility model content
The problems referred to above that the utility model need to solve are for above-mentioned the deficiencies in the prior art, and a kind of flexible mould of plastic packing box fastener is provided.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of flexible mould of plastic packing box fastener, comprise external mold and internal mold, the upper end of described internal mold is spheroidal, comprise left arc surface, right arc surface and middle anchor ring, the both sides of anchor ring in the middle of left arc surface and right arc surface are movably connected in by flange respectively, the medial surface of anchor ring in the middle of flange is inscribed within, between left arc surface and right arc surface, be provided with at least one spring, center in left arc surface and right arc surface inner side is hinged with respectively motion bar, between two motion bars, interconnect, and be hinged with pull bar in junction, the lower end of described pull bar is inscribed within the hole of internal mold lower end cylinder.
In the middle of described, the width of anchor ring equals the width of cylinder.
The length of described motion bar equals the radius of the upper end ball of internal mold.
Compared with prior art, the beneficial effects of the utility model are: internal mold upper end is spherical shape, comprise left arc surface, right arc surface and middle anchor ring, left arc surface and right arc surface are under the pulling of pull bar, can in middle anchor ring, gather, the just demoulding easily of the fastener of forming, restores to the original state again under the elastic force at spring when pulling force disappearance rear left arc surface and right arc surface, continue to produce, convenient and practical.
Accompanying drawing explanation
Fig. 1 is the structural representation of the flexible mould of plastic packing box fastener of the present utility model;
Wherein, 1, external mold, 2, internal mold, 3, left arc surface, 4, right arc surface, 5, middle anchor ring, 6, spring, 7, motion bar, 8, pull bar, 9, cylinder, 10, flange.
The specific embodiment
Below in conjunction with accompanying drawing, describe optimal technical scheme of the present utility model in detail.
As shown in Figure 1, a kind of flexible mould of plastic packing box fastener, comprise external mold 1 and internal mold 2, the upper end of internal mold 2 is spheroidal, comprise left arc surface 3, right arc surface 4 and middle anchor ring 5, the both sides of anchor ring 5 in the middle of left arc surface 3 and right arc surface 4 are movably connected in by flange 10 respectively, the medial surface of anchor ring 5 in the middle of flange 10 is inscribed within, between left arc surface 3 and right arc surface 4, be provided with at least one spring 6, center in left arc surface 3 and right arc surface 4 inner sides is hinged with respectively motion bar 7, between two motion bars 7, interconnect, and in junction, be hinged with pull bar 8, the lower end of described pull bar 8 is inscribed within the hole of internal mold 2 lower end cylinders 9.
In the middle of the width of anchor ring 5 equal the width of cylinder 9, make the in the same size, conveniently stripped of the eck of the fastener after moulding and middle anchor ring 5.
The length of motion bar 7 equals the radius of the upper end ball of internal mold 2, between two motion bars 7 and spring 6, cooperatively interacts, and keeping the upper end of internal mold 2 is spheroidal.
The flexible mould of plastic packing box fastener of the present utility model, internal mold 2 upper ends are spherical shape, comprise left arc surface 3, right arc surface 4 and middle anchor ring 5, left arc surface 3 and right arc surface 4 are under the pulling of pull bar 8, can be to 5 gathering in middle anchor ring, the just demoulding easily of the fastener of forming, when pulling force disappearance rear left arc surface 3 and right arc surface 4 restore to the original state again under the elastic force of spring 6, continue to produce, convenient and practical.
Claims (3)
1. the flexible mould of a plastic packing box fastener, comprise external mold (1) and internal mold (2), it is characterized in that: the upper end of described internal mold (2) is spheroidal, comprise left arc surface (3), right arc surface (4) and middle anchor ring (5), the both sides of anchor ring (5) in the middle of left arc surface (3) and right arc surface (4) are movably connected in by flange (10) respectively, the medial surface of anchor ring (5) in the middle of flange (10) is inscribed within, between left arc surface (3) and right arc surface (4), be provided with at least one spring (6), center in left arc surface (3) and right arc surface (4) inner side is hinged with respectively motion bar (7), two motion bars interconnect between (7), and in junction, be hinged with pull bar (8), the lower end of described pull bar (8) is inscribed within the hole of internal mold (2) lower end cylinder (9).
2. the flexible mould of plastic packing box fastener according to claim 1, is characterized in that: in the middle of described, the width of anchor ring (5) equals the width of cylinder (9).
3. the flexible mould of plastic packing box fastener according to claim 1, is characterized in that: the length of described motion bar (7) equals the radius of the upper end ball of internal mold (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320497410.2U CN203580107U (en) | 2013-08-15 | 2013-08-15 | Movable die for plastic suction packaging box fastener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320497410.2U CN203580107U (en) | 2013-08-15 | 2013-08-15 | Movable die for plastic suction packaging box fastener |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203580107U true CN203580107U (en) | 2014-05-07 |
Family
ID=50578073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320497410.2U Expired - Fee Related CN203580107U (en) | 2013-08-15 | 2013-08-15 | Movable die for plastic suction packaging box fastener |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203580107U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103434125A (en) * | 2013-08-15 | 2013-12-11 | 苏州华日金菱机械有限公司 | Movable mould of plastic-adsorption packing box fastener |
-
2013
- 2013-08-15 CN CN201320497410.2U patent/CN203580107U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103434125A (en) * | 2013-08-15 | 2013-12-11 | 苏州华日金菱机械有限公司 | Movable mould of plastic-adsorption packing box fastener |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140507 Termination date: 20140815 |
|
| EXPY | Termination of patent right or utility model |