CN108115895B

CN108115895B - Vertical multi-cavity 90-degree bending die with elastic block molding inclined sliding core pulling function

Info

Publication number: CN108115895B
Application number: CN201711273807.2A
Authority: CN
Inventors: 张欢庆
Original assignee: Taizhou Huangyan Weida Plastic Machinery Co Ltd
Current assignee: Taizhou Huangyan Weida Plastic Machinery Co Ltd
Priority date: 2017-12-06
Filing date: 2017-12-06
Publication date: 2020-05-19
Anticipated expiration: 2037-12-06
Also published as: CN108115895A

Abstract

A vertical multi-cavity 90-degree bending die with elastic block molding and inclined sliding core pulling comprises a die cavity plate and a core plate, wherein a cavity insert is arranged in the cavity plate, a core plate is arranged in the core plate, die pins are arranged under the core plate, an upper ejector pin and a lower top plate are arranged between the die pins, a die compound plate is arranged under the die pins, 2-8 vertical die cavities which are arranged in a double row vertically are arranged on the core insert, the cavity insert is connected with a vertical core corresponding to the vertical die cavities, 90-degree bent pipe fittings are injected in a gap formed by matching the vertical core and the vertical die cavities, the vertical die cavity comprises a half vertical cavity body arranged on the core insert, the other half cavity body is formed by splicing two elastic blocks, the two elastic blocks are respectively provided with a half cavity body, the two half cavity bodies are spliced and matched with the half vertical cavity body to form the vertical die cavity body, and a core pulling mechanism is arranged on the two elastic blocks.

Description

Vertical multi-cavity 90-degree bending die with elastic block molding inclined sliding core pulling function

Technical Field

The invention relates to a vertical multi-cavity 90-degree bending die with an elastic block molding inclined sliding core pulling function, and belongs to the field of injection molds.

Background

Plastic products, such as plastic pipes and the like, are produced by using an injection mold, and the types of the plastic pipes are various, and one of the types of the plastic pipes is a 90-degree bend. The traditional mould for producing the 90-degree elbow pipe fitting adopts a horizontal design, and a pair of moulds can produce 4 products at most once, namely four products, so that in recent years, the side-horizontal 90-degree elbow mould is gradually developed, namely the 90-degree elbow pipe fitting is placed in an inverted triangle shape, the pipe fitting is arranged in a side-horizontal mode, 6-8 products can be produced by one mould, and the production efficiency is improved. However, in the face of increasingly severe competition, there is a need to develop a more efficient 90 ° bending die, and therefore, the applicant has designed a vertical multi-cavity 90 ° bending die.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a vertical multi-cavity 90-degree bending die with an elastic block molding inclined sliding core, which adopts vertical multi-cavity arrangement, is used for bidirectionally pulling cores, is smooth in demolding and has double-improved production efficiency.

The invention discloses a technical scheme of a vertical multi-cavity 90-degree bending die with an elastic block molding inclined sliding core pulling function, which comprises the following steps: the die core insert is provided with 2-8 vertical die cavities in double rows and is vertically arranged, the die cavity insert is connected with a vertical core corresponding to the vertical die cavity, a 90-degree bent pipe is injected in a gap formed by the vertical core and the vertical die cavity in a matched mode, the vertical die cavity comprises a half-edge vertical cavity body arranged on the die core insert, the other half-edge cavity body is formed by splicing two elastic blocks, the two elastic blocks are respectively provided with a half-edge cavity body, the two half-edge cavity bodies are spliced and matched with the half-edge vertical cavity body to form the vertical die cavity, and a core-pulling and demolding mechanism is arranged on the two elastic blocks.

The invention discloses a vertical multi-cavity 90-degree bending die with an elastic block molding inclined slide core pulling function, which is mainly characterized in that 2-8 vertical die cavities which are vertically arranged in double rows are arranged on a core insert, a vertical core corresponding to the vertical die cavities is connected below the cavity insert, 90-degree bent pipes are injected in a gap formed by matching the vertical core and the vertical die cavities, and the two rows of 2-8 vertical die cavities, namely 4-16 die cavities are arranged on one core insert, so that 4-16 pipe fittings can be produced by one die. Particularly, the vertical die cavity is composed of a half-edge vertical cavity and two half-plate cavities, and the two half-plate cavities are connected with the core-pulling and demolding mechanism, so that the formed 90-degree bent pipe can be smoothly released.

The invention discloses a vertical multi-cavity 90-degree bending die with an elastic block molding inclined sliding core, wherein a core-pulling and demolding mechanism comprises two elastic blocks, each of which is provided with an elastic hole, each of the elastic holes is provided with a spring, the outer side walls of the two elastic blocks are respectively provided with a T-shaped inclined sliding groove, a core-pulling sliding block is arranged on a core insert, a T-shaped inclined sliding strip is arranged on the core-pulling sliding block, the T-shaped inclined sliding strip is matched with the T-shaped inclined sliding grooves, the core-pulling sliding block is driven by a core-pulling oil cylinder to pull a core, and the core-pulling oil cylinder. During the drawing of patterns, utilize the spring that sets up in two bullet pieces to and the oblique spout of T type on the two bullet piece outer walls, drive the slider of loosing core by the hydro-cylinder of loosing core again, the slider of loosing core passes through the oblique draw runner of T type, and at the auxiliary action of spring, drives two bullet pieces and to the oblique slip separation of both sides, makes two half slit and cut rule cavitys separate, exposes half fashioned 90 bent pipe spare, and then the pipe fitting can be ejecting automatically under the ejection mechanism of mould, and the drawing of patterns is smooth. The core plate on set up the slider connecting block, the slider of loosing core is connected to slider connecting block front portion, outer slider is connected at slider connecting block rear portion, the hydro-cylinder of loosing core passes through the support mounting on the lateral wall of core plate, and the hydro-cylinder pole of the hydro-cylinder of loosing core connects outer slider, when loosing core, drive outer slider and slider connecting block by the hydro-cylinder of loosing core, drive the slider of loosing core by the slider connecting block again and loose core, the action is stable, and it is smooth and easy to loose core.

Drawings

FIG. 1 is a schematic view of a vertical multi-cavity 90 ° bend mold of the present invention;

FIG. 2 is a schematic perspective view of a vertical multi-cavity 90 ° bend mold of the present invention;

FIG. 3 is a schematic view of the core-pulling and demolding mechanism of the present invention;

FIG. 4 is a schematic view of the vertical core of the present invention in cooperation with two spring blocks and a core-pulling slider;

FIG. 5 is a schematic view of a core insert of the present invention with half-sided vertical cavities;

fig. 6 is a schematic view of a cartridge block of the present invention with a cavity of a half.

Detailed Description

The invention relates to a vertical multi-cavity 90-degree bending die with an elastic block molding inclined slide core, which comprises a die cavity plate 1 and a core plate 2, wherein a cavity insert 3 is arranged in the cavity plate, a core plate 4 is arranged in the core plate, a die pin 5 is arranged below the core plate, an upper ejector pin 6 and a lower ejector plate 7 are arranged between the die pins, a die compound plate 8 is arranged below the die pin, 2-8 vertical die cavities 10 which are arranged in a double-row vertical mode are arranged on the core insert 4, a vertical core 11 corresponding to the vertical die cavity 10 is connected below the cavity insert 3, a 90-degree bent pipe 12 is injected into a clearance formed by matching the vertical core 11 and the vertical die cavity 10, the vertical die cavity comprises a half vertical cavity 41 arranged on the core insert 4, the other half cavity is formed by splicing two elastic blocks 42, each elastic block 42 is provided with two half cavity 43, the two half cavity 43 are spliced and matched with the half cavity 41 to form the vertical die cavity 10, the two elastic blocks 42 are provided with core-pulling and demolding mechanisms. The scheme is mainly characterized in that 2-8 vertical die cavities 10 which are vertically arranged in double rows are arranged on a core insert 4, the lower part of the cavity insert 3 is connected with a vertical core 11 corresponding to the vertical die cavities 10, a 90-degree bent pipe 12 is injected in a gap formed by matching the vertical core 11 and the vertical die cavities 10, and the vertical die cavities of the double rows 2-8 are arranged, namely 4-16 die cavities are arranged on one core insert, so that 4-16 pipe fittings can be produced in one die. Particularly, the vertical mold cavity is composed of a half-side vertical cavity 41 and two half cavities 43, and the two half cavities 43 are connected with the core-pulling and demolding mechanism, so that the formed 90-degree bent pipe can be smoothly released. The core-pulling demolding mechanism comprises two elastic blocks 42, wherein each elastic hole 20 is formed in each elastic block, a spring 21 is arranged in each elastic hole, T-shaped inclined sliding grooves 22 are formed in the outer side walls of the two elastic blocks 42, a core-pulling sliding block 23 is arranged on a core insert 4, T-shaped inclined sliding strips 24 are arranged on the core-pulling sliding block 23, the T-shaped inclined sliding strips 24 are matched with the T-shaped inclined sliding grooves 22, the core-pulling sliding block 23 is driven by a core-pulling oil cylinder 25 to pull a core, and the core-pulling oil cylinder 25 is installed on the outer side wall of a core plate. During the drawing of patterns, utilize the spring that sets up in two bullet pieces to and the oblique spout of T type on the two bullet piece outer walls, drive the slider of loosing core by the hydro-cylinder of loosing core again, the slider of loosing core passes through the oblique draw runner of T type, and at the auxiliary action of spring, drives two bullet pieces and to the oblique slip separation of both sides, makes two half slit and knife cavitys 43 separate, exposes half fashioned 90 bent pipe spare, and then the pipe fitting can be ejecting automatically under the ejection mechanism of mould, and the drawing of patterns is smooth. The core plate 2 on set up slider connecting block 30, the slider connecting block front portion is connected and is loosed core slider 23, outer slider 31 is connected at slider connecting block rear portion, the hydro-cylinder 25 of loosing core is installed on the lateral wall of core plate 2 through support 32, and the hydro-cylinder pole 26 of hydro-cylinder 25 of just loosing core connects outer slider 31, when loosing core, drive outer slider and slider connecting block by the hydro-cylinder of loosing core, drive the slider of loosing core by the slider connecting block again and loose core, the action is stable, it is smooth and easy to loose core.

Claims

1. A vertical multi-cavity 90-degree bending die with elastic block molding inclined slide core pulling comprises a die cavity plate (1) and a core plate (2), wherein a cavity insert (3) is arranged in the cavity plate, a core plate insert (4) is arranged in the core plate, die legs (5) are arranged under the core plate, an upper ejector pin (6) and a lower ejector plate (7) are arranged between the die legs, and a die compound plate (8) is arranged under the die legs, the vertical multi-cavity 90-degree bending die is characterized in that 2-8 double rows of vertical die cavities (10) are arranged on the core plate insert (4), the cavity insert (3) is connected with a vertical core (11) corresponding to the vertical die cavity (10), the vertical core (11) and the vertical die cavity (10) are matched to form a gap in which a 90-degree bent pipe fitting (12) is injected, the vertical die cavity comprises a half-edge vertical cavity (41) arranged on the core plate insert (4), and the other half-edge cavity is formed, the core-pulling and demolding mechanism comprises two elastic blocks (42), wherein the two elastic blocks (42) are respectively provided with a half cavity (43), the two half cavities (43) are spliced and matched with a half vertical cavity (41) to form a vertical mold cavity (10), the two elastic blocks (42) are provided with a core-pulling and demolding mechanism, the core-pulling and demolding mechanism comprises two elastic blocks (42), each elastic hole (20) is provided with an elastic hole (20), a spring (21) is arranged in each elastic hole, the outer side walls of the two elastic blocks (42) are respectively provided with a T-shaped inclined sliding groove (22), a core-pulling sliding block (23) is arranged on a core insert (4), a T-shaped inclined sliding strip (24) is arranged on the core-pulling sliding block (23), the T-shaped inclined sliding strip (24) is matched with the T-shaped inclined sliding groove (22), the core-pulling sliding block (23) is driven by a core-pulling oil cylinder (25) to drive the core-pulling oil cylinder (25) to be installed on the outer side wall of the, the rear part of the slide block connecting block is connected with an outer slide block (31), the core-pulling oil cylinder (25) is arranged on the outer side wall of the core plate (2) through a support (32), and an oil cylinder rod (26) of the core-pulling oil cylinder (25) is connected with the outer slide block (31).