CN209832446U - Push plate ejection mechanism and three-plate mold - Google Patents

Abstract

The utility model discloses a push pedal ejection mechanism and three-plate mold utensil, push pedal ejection mechanism still include the thimble including push pedal, male mold plate, thimble panel and the thimble ejector plate that sets gradually, the upper surface of push pedal is equipped with the push pedal mold insert, and the product cover is established on the push pedal mold insert, the product bottom with the upper surface direct contact of push pedal, male mold plate, push pedal and push pedal mold insert have been alternated to the upper end of thimble and are connected with the product, lower extreme and thimble panel fixed connection. Through the mutual cooperation between each subassembly of push pedal ejection mechanism, the surface direct contact product bottom of push pedal, as the die joint of product, after the product injection moulding, can play the support cushioning effect to the product, effectively guaranteed the roughness of product bottom, the inside shape of product has been guaranteed to the push pedal mold insert on it, the thimble has then guaranteed the smooth ejecting of product, to the great product of die sinking direction span, has both guaranteed the functional requirement of product and has guaranteed the outward appearance of product again.

Description

Push plate ejection mechanism and three-plate mold

Technical Field

The utility model relates to an ejection mechanism and injection mold especially relate to a push pedal ejection mechanism and three-plate mold utensil.

Background

The injection mold is one of indispensable tools for manufacturing plastics, and after a plastic product is prepared, the plastic product needs to be subjected to demolding treatment. However, when the span in the mold opening direction of the product is large (over 100mm), the wall thickness of the bottom of the product is too thin, the general mold structure can cause product deformation due to uneven ejection, and the bottom of the product is uneven, thereby affecting the appearance and the service performance.

Disclosure of Invention

Utility model purpose: to above problem, the utility model aims at providing a push pedal ejection mechanism, this mechanism make the product ejecting even, guarantee product appearance and bottom roughness. The utility model discloses another purpose provides the three-plate mold who contains this push pedal ejection mechanism.

The technical scheme is as follows: for realizing the purpose of the utility model, the utility model adopts the technical proposal that: the utility model provides a push pedal ejection mechanism, is including push pedal, public template, thimble panel and the thimble ejector plate that sets gradually, the upper surface of push pedal is equipped with the push pedal mold insert that is used for the cover to establish the product, the product bottom with the upper surface direct contact of push pedal still includes the thimble, public template, push pedal and push pedal mold insert are alternated to the upper end of thimble and are connected with the product, lower extreme and thimble panel fixed connection.

Preferably, the shape of the push plate insert is the same as the shape of the interior of the product, so that the interior shape of the product can be effectively ensured.

Preferably, a spring for resetting the ejector pin is arranged between the male die plate and the ejector pin panel.

Preferably, the push plate is fixed to the core plate.

Preferably, the ejector pin panel is fixed on the ejector pin pushing plate.

Three-plate mold utensil, including the panel that sets gradually, take off flitch, female template, push pedal ejection mechanism and mould bottom plate.

Preferably, a support plate is arranged below the male template.

Preferably, a mold foot is arranged between the support plate and the mold bottom plate.

Has the advantages that: compared with the prior art, through mutually supporting between each subassembly of push pedal ejection mechanism, the surface direct contact product bottom of push pedal, as the die joint of product, after the product injection moulding, can play the support cushioning effect to the product, effectively guaranteed the roughness of product bottom, the inside shape of product has been guaranteed to the push pedal mold insert on it, the thimble has then guaranteed the smooth ejecting of product, to the great product of die sinking direction span, the functional requirement of product has both been guaranteed and the outward appearance of product has been guaranteed again.

Drawings

FIG. 1 is a schematic view of a push plate ejection mechanism;

FIG. 2 is a schematic diagram of A in FIG. 1;

FIG. 3 is a schematic view of a three-plate mold.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples.

As shown in fig. 1 and 2, a push plate ejection mechanism, including push plate 1, public template 2, thimble panel 3 and thimble ejector plate 4 that set gradually from the top down, still include a plurality of thimbles 5, the upper surface of push plate 1 is equipped with push plate insert 6, 7 covers of product are established on push plate insert 6, the upper surface direct contact of product 7 bottom (the border of opening department promptly) and push plate 1, public template 2 has been passed through to the upper end of thimble 5, push plate 1 and push plate insert 6 are connected with product 7, the lower extreme and 3 fixed connection of thimble panel of thimble 5. The shape of the push plate insert 6 is the same as the internal shape of the product 7, if the product 7 is an open-ended and inverted cuboid box-shaped structure in this embodiment, the push plate insert 6 is correspondingly designed into a cuboid shape matched with the product 7, which is certainly not limited to this embodiment, as long as the shapes of the two are matched, so that the internal shape of the product after ejection is not deformed. A spring 8 for resetting the thimble 5 is arranged between the male template 2 and the thimble panel 3, the push plate 1 is fixed on the male template 2, and the thimble panel 3 is fixed on the thimble push plate 4.

As shown in fig. 3, the three-plate mold including the ejector mechanism comprises a face plate 9, a stripper plate 10, a mother template 11, an ejector mechanism and a mold bottom plate 12 which are arranged in sequence from top to bottom. Wherein, push pedal ejection mechanism includes push pedal 1 that from the top down set gradually, public template 2, thimble panel 3 and thimble ejector plate 4, still include a plurality of thimbles 5, the upper surface of push pedal 1 is equipped with push pedal mold insert 6, 7 covers of product are established on push pedal mold insert 6, 7 bottoms of product (the border of opening promptly) and the upper surface direct contact of push pedal 1, public template 2 has been alternated to the upper end of thimble 5, push pedal 1 and push pedal mold insert 6 are connected with product 7, the lower extreme and the 3 fixed connection of thimble panel of thimble 5. A supporting plate 13 is arranged below the male die plate 2, and a die leg 14 is arranged between the supporting plate 13 and the die bottom plate 12. The positions and the connection relations among other components are well known to those skilled in the art except for the push plate ejection mechanism, and are not described herein.

The working process is as follows: the liquid material that melts is shaping in three-plate mold's die cavity, forms the product, and to take product 7 in this embodiment to be an open-ended, the boxed structure of the cuboid of back-off as an example, prior art's injection mold generally arranges a plurality of thimbles in the product bottom, and when the die sinking direction span of product exceeded 100mm, the wall thickness at product bottom opening border was too thin, if the thimble directly pushes up at its bottom border, can lead to the product to warp for product bottom unevenness. Compared with the prior art, the utility model discloses a push pedal ejection mechanism because the bottom of the surperficial direct contact product 7 of push pedal 1, as the die joint of product, after the product shaping, can play the support cushioning effect to the product, the female template 11 of mould, the 2 die sinking of public template, under the effect of mould, 4 upshifts of thimble ejector plate drive thimble panel 3, the also upward movement of thimble 5, and thimble 5 releases product 7. Of course, the push plate 1 may not be fixed on the core plate 2, and moves upward along with the ejector pin to push out the product. The push plate effectively guarantees the flatness of the bottom of the product, the push plate insert on the push plate guarantees the internal shape of the product, and the ejector pins guarantee smooth ejection of the product.

Claims (8)

1. The utility model provides a push pedal ejection mechanism, is including push pedal (1), public template (2), thimble panel (3) and thimble ejector plate (4) that set gradually, its characterized in that, the upper surface of push pedal (1) is equipped with push pedal mold insert (6) that are used for the cover to establish product (7), product (7) bottom with the upper surface direct contact of push pedal (1) still includes thimble (5), public template (2), push pedal (1) and push pedal mold insert (6) have been alternated to the upper end of thimble (5) and are connected with product (7), lower extreme and thimble panel (3) fixed connection.

2. The push plate ejection mechanism according to claim 1, wherein the shape of the push plate insert (6) is the same as the shape of the interior of the product (7).

3. The ejector mechanism of claim 1, wherein a spring (8) for returning the ejector pin (5) is provided between the core plate (2) and the ejector pin plate (3).

4. The push plate ejection mechanism according to claim 1, wherein the push plate (1) is fixed to the core plate (2).

5. The ejector mechanism of claim 1, wherein the ejector pin plate (3) is fixed to the ejector pin ejector plate (4).

6. A three-plate mold having the push-out mechanism according to claim 1, comprising a face plate (9), a stripper plate (10), a mother plate (11), a push-plate push-out mechanism and a mold base plate (12) arranged in this order.

7. A three-plate mould according to claim 6, wherein a support plate (13) is provided below the core plate (2).

8. A three-plate mould according to claim 7, wherein mould feet (14) are provided between the support plate (13) and the mould base plate (12).