CN216373111U

CN216373111U - Mould with secondary ejection structure

Info

Publication number: CN216373111U
Application number: CN202122396752.2U
Authority: CN
Inventors: 谢寿琴; 华碧辉; 陈学正
Original assignee: Ningbo Ruiyuan Mould & Plastics Co ltd
Current assignee: Ningbo Ruiyuan Mould & Plastics Co ltd
Priority date: 2021-09-30
Filing date: 2021-09-30
Publication date: 2022-04-26
Anticipated expiration: 2031-09-30

Abstract

The utility model relates to a die with a secondary ejection structure, which comprises a movable die template and a lower code template, wherein a first top plate, a second top plate and a third top plate are sequentially arranged between the movable die template and the lower code template from top to bottom; the technical problem that in the prior art, single ejection of a die cannot meet the requirement of stripping of part of special products is solved.

Description

Mould with secondary ejection structure

Technical Field

The utility model relates to the technical field of dies, in particular to a die with a secondary ejection structure.

Background

After the product is injection molded, the product is ejected by the ejector plate and the ejector pin on the mold, the conventional mold is ejected once generally, but some special products cannot meet the mold ejection of partial structures of the product under the condition that the mold is ejected once, and the product cannot be ejected completely.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model aims to provide a die capable of realizing secondary ejection.

In order to solve the technical problems, the utility model provides a die with a secondary ejection structure, which comprises a movable die plate and a lower code plate, wherein a first top plate, a second top plate and a third top plate are sequentially arranged between the movable die plate and the lower code plate from top to bottom, a stroke control plate is arranged between the lower code plate and the movable die plate, one end of the stroke control plate is connected with the movable die plate, the other end of the stroke control plate is connected with the lower code plate, a clamping plate is arranged on the stroke control plate in a sliding mode, the sliding direction of the clamping plate is vertical, the clamping plate is connected with the first top plate and the second top plate, a first draw hook, a second draw hook and a clamping groove are arranged on the clamping plate, the first draw hook is connected with the first top plate, the second draw hook is connected with the second top plate, a first inclined surface is arranged on the stroke control plate, an ejection buckle plate is arranged on the third top plate in a sliding mode, the ejection buckle plate is connected with the third top plate, a second inclined surface is arranged on the ejection buckle plate, and the ejection buckle plate is clamped in the clamping groove and the first inclined surface is abutted against the second inclined surface when the ejection buckle plate is not ejected, when ejecting, the ejection buckle plate slides in the direction far away from the stroke control plate under the action of the first inclined plane and the second inclined plane, and slides out of the clamping groove after sliding for a certain distance.

After the structure is adopted, the die with the secondary ejection structure has the following advantages: when ejecting for the first time, first roof and second roof rise, because first roof and second roof all are connected with the joint board, first drag hook and second drag hook play with the power transmission of first roof and second roof to the effect on the joint board, the joint board is connected with ejecting buckle again through the draw-in groove, thereby it rises together to drive the third roof, in the process of rising, because the effect on first inclined plane and second inclined plane, make ejecting buckle towards keeping away from the stroke control board direction and slide, until ejecting buckle roll-off draw-in groove, later the third roof stops rising, and first roof and second roof continue to rise and realize that the secondary is ejecting, can make the ejecting demolding of the product that the single was ejecting can't be out of the mould completely ejecting.

As an improvement, a groove is formed in the third top plate, the ejecting buckle plate is convex and is arranged in the groove in a sliding manner, pressing plates are arranged on two sides of the ejecting buckle plate, and each pressing plate is arranged on the ejecting buckle plate and is connected with the third top plate; by adopting the structure, the structure has the advantage of simple structure, and not only can the ejecting buckle plate slide, but also can the ejecting buckle plate be connected with the third top plate.

As an improvement, the clearance between the ejection buckle plate and the pressing plate is 0.1mm to 0.2 mm; by adopting the structure, the ejection buckle plate can slide on the third top plate more smoothly.

As an improvement, a telescopic spring is arranged between the ejection buckle plate and the side wall of the groove and far away from the stroke control plate; by adopting the structure, the telescopic spring is convenient for the reset of the ejection buckle plate.

As an improvement, the extension spring is a disc-type spring; by adopting the structure, the elastic force of the telescopic spring can ensure that the ejection buckle plate can be successfully reset, and the service life of the telescopic spring can be prolonged.

As an improvement, a chute is arranged on the stroke control plate along the vertical direction, and the clamping plate is arranged in the chute in a sliding manner; by adopting the structure, the sliding groove plays a role in guiding the clamping plate, and the clamping plate can be ensured to ascend along the vertical direction.

Drawings

Fig. 1 is a cross-sectional view of the present invention as a whole.

Fig. 2 is a partially enlarged view of a portion a in fig. 1.

Fig. 3 is a schematic perspective view of the present invention.

FIG. 4 is a schematic view of the connection structure of the ejecting buckle plate and the pressing plate of the present invention.

Reference numerals: 1. moving the die plate; 2. a code template is downloaded; 3. a first top plate; 4. a second top plate; 5. a third top plate; 6. a stroke control board; 7. a clamping and connecting plate; 8. a first draw hook; 9. a second draw hook; 10. a card slot; 11. a first inclined plane; 12. ejecting a buckle plate; 13. a second inclined plane; 14. a groove; 15. pressing a plate; 16. a tension spring; 17. a chute.

Detailed Description

The following describes the mold with the double ejection structure in detail with reference to the accompanying drawings.

As shown in fig. 1 to 4, the mold with the secondary ejection structure comprises a movable mold template 1 and a lower mold template 2, wherein a first top plate 3, a second top plate 4 and a third top plate 5 are sequentially arranged between the movable mold template 1 and the lower mold template 2 from top to bottom; a stroke control plate 6 is arranged between the lower code template 2 and the movable die template 1, one end of the stroke control plate 6 is connected with the movable die template 1, and the other end is connected with the lower code template 2; the stroke control plate 6 is provided with a clamping plate 7 in a sliding manner, the stroke control plate 6 is provided with a sliding groove 17 along the vertical direction, the clamping plate 7 is arranged in the sliding groove 17 in a sliding manner, and the sliding groove 17 enables the stroke control plate 6 to be in a shape of Chinese character 'hui' integrally; the clamping plate 7 is connected with the first top plate 3 and the second top plate 4, a first draw hook 8, a second draw hook 9 and a clamping groove 10 are arranged on the clamping plate 7, the first draw hook 8 is connected with the first top plate 3, and the second draw hook 9 is connected with the second top plate 4; a first inclined plane 11 is arranged on the right end face of the stroke control plate 6, and an ejection buckle plate 12 is arranged on the third top plate 5 in a sliding manner; a groove 14 is formed in the third top plate 5, the ejecting buckle plate 12 is convex and is arranged in the groove 14 in a sliding mode, an expansion spring 16 is arranged between the ejecting buckle plate 12 and the side wall, far away from the stroke control plate 6, of the groove 14, and the expansion spring 16 is a coiling spring; the two sides of the ejecting buckle plate 12 are respectively provided with a pressing plate 15, each pressing plate 15 is arranged on the ejecting buckle plate 12 and is connected with the third top plate 5, so that the ejecting buckle plate 12 is connected with the third top plate 5, the gap between the ejecting buckle plate 12 and the pressing plate 15 is 0.1mm to 0.2mm, and the preferred gap is 0.1mm in the embodiment; the left end face of the ejection buckle plate 12 is provided with a second inclined face 13, when the ejection buckle plate 12 is not ejected, the ejection buckle plate 12 is clamped in the clamping groove 10, the first inclined face 11 is abutted against the second inclined face 13, and when the ejection buckle plate 12 is ejected, the ejection buckle plate 12 slides in the direction away from the stroke control plate 6 under the action of the first inclined face 11 and the second inclined face 13 and slides out of the clamping groove 10 after sliding for a certain distance.

In this embodiment, the stroke control plate 6, the clamping plate 7, the first draw hook 8, the second draw hook 9, the ejection buckle plate 12, the pressing plate 15 and the extension spring 16 are provided in two sets and symmetrically arranged on the left and right sides of the mold, and do not occupy the space of the ejection position, and correspondingly, there are also two sets of the clamping grooves 10, the first inclined surface 11, the second inclined surface 13, the grooves 14 and the sliding grooves 17.

The ejector pins are arranged on the first top plate 3, the second top plate 4 and the third top plate 5, when the ejection is performed for the first time, the first top plate 3 and the second top plate 4 are driven to ascend through an ejector rod of an injection molding machine, the first top plate 3 and the second top plate 4 are connected with the clamping plate 7, the first draw hook 8 and the second draw hook 9 play a role in transmitting the power of the first top plate 3 and the second top plate 4 to the clamping plate 7, the clamping plate 7 is connected with the ejection buckle plate 12 through the clamping groove 10, so that the third top plate 5 is driven to ascend together, and in the process of ascending, the ejection buckle plate 12 slides in the direction far away from the stroke control plate 6 under the action of the first inclined surface 11 and the second inclined surface 13 until the ejection buckle plate 12 slides out of the clamping groove 10, and the telescopic spring 16 is compressed; and then the third top plate 5 stops rising, and the first top plate 3 and the second top plate 4 continue rising to realize secondary ejection, so that a product which cannot be completely ejected by single ejection can be ejected and ejected. In addition, after the secondary ejection, the first draw hook 8 and the second draw hook 9 can respectively assist the first top plate 3 and the second top plate 4 to reset, and the compressed telescopic spring 16 enables the ejection buckle plate 12 to reset.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above-described embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.

Claims

1. The die with the secondary ejection structure comprises a movable die plate (1) and a lower die plate (2), and is characterized in that a first top plate (3), a second top plate (4) and a third top plate (5) are sequentially arranged between the movable die plate (1) and the lower die plate (2) from top to bottom, a stroke control plate (6) is arranged between the lower die plate (2) and the movable die plate (1), one end of the stroke control plate (6) is connected with the movable die plate (1), the other end of the stroke control plate is connected with the lower die plate (2), a clamping plate (7) is arranged on the stroke control plate (6) in a sliding mode, the sliding direction of the clamping plate (7) is vertical, the clamping plate (7) is connected with the first top plate (3) and the second top plate (4), a first draw hook (8), a second draw hook (9) and a draw groove (10) are arranged on the clamping plate (7), first drag hook (8) are connected first roof (3), second drag hook (9) are connected second roof (4), be equipped with first inclined plane (11) on stroke control board (6), it is equipped with ejecting buckle (12) to slide on third roof (5), ejecting buckle (12) are connected third roof (5), be equipped with second inclined plane (13) on ejecting buckle (12), when not ejecting, ejecting buckle (12) joint is in just in draw-in groove (10) first inclined plane (11) with second inclined plane (13) are inconsistent, when ejecting, ejecting buckle (12) are in first inclined plane (11) with down toward keeping away from in second inclined plane (13) the stroke control board (6) direction slides to roll off behind the certain distance that slides draw-in groove (10).

2. The mold with the secondary ejection structure according to claim 1, wherein a groove (14) is formed in the third top plate (5), the ejection buckle (12) is convex and is slidably disposed in the groove (14), pressing plates (15) are disposed on two sides of the ejection buckle (12), and each pressing plate (15) is disposed on the ejection buckle (12) and connected to the third top plate (5).

3. The mold with the secondary ejection structure according to claim 2, wherein a gap between the ejection buckle (12) and the platen (15) is 0.1mm to 0.2 mm.

4. The mold with the secondary ejection structure according to claim 2, characterized in that a telescopic spring (16) is arranged between the ejection buckle (12) and the side wall of the groove (14) far away from the stroke control plate (6).

5. The mold with the double ejection structure according to claim 4, wherein the extension spring (16) is a coil spring.

6. The mold with the secondary ejection structure according to claim 1, wherein a slide groove (17) is provided on the stroke control plate (6) in a vertical direction, and the snap plate (7) is slidably provided in the slide groove (17).