CN108859021B

CN108859021B - Three-stage linkage demoulding mechanism

Info

Publication number: CN108859021B
Application number: CN201810633777.XA
Authority: CN
Inventors: 徐威宇; 方永杰; 金欢; 屠立斌; 郑立剑; 王文振; 薛东波; 蒋尚焕; 石行; 秦涛涛; 潘相德; 叶会章; 周华民
Original assignee: Ningbo Fangzheng Tool Co Ltd
Current assignee: Ningbo Fangzheng Tool Co Ltd
Priority date: 2018-06-20
Filing date: 2018-06-20
Publication date: 2021-04-13
Anticipated expiration: 2038-06-20
Also published as: CN108859021A

Abstract

The invention discloses a three-stage linkage demoulding mechanism, which comprises an upper mould (1) and a lower mould (2), wherein the upper mould (1) is in sliding fit with the lower mould (2); the lower die (2) is provided with a demoulding mechanism and a product bracket (4) for placing a product (3), and the product bracket (4) is connected with the demoulding mechanism; the demolding mechanism comprises a first-stage demolding mechanism used for demolding from a bottom bayonet and a bottom hole of the product (3), a second-stage demolding mechanism used for demolding from a first bayonet on the side edge of the product (3), and a third-stage demolding mechanism used for demolding from a second bayonet on the side edge of the product (3), wherein the first demolding mechanism is arranged below the lower die (2); the second demoulding mechanism and the third demoulding mechanism are arranged in the upper die (1) and the lower die (2); the product bracket (4) is connected with a third demoulding mechanism; the second demoulding mechanism is in sliding fit with the third demoulding mechanism. The mechanism can effectively carry out orderly demoulding on products with bayonet and hole structures.

Description

Three-stage linkage demoulding mechanism

Technical Field

The invention relates to the technical field of injection molds, in particular to a three-stage linkage demolding mechanism.

Background

An injection mold is a tool for producing plastic products. Along with the higher and higher requirements of the product assembly process, the product structure tends to be integrated and complicated, so that a plurality of complex multi-layer structures are added on the original basis of a plurality of products in the market, such as a plurality of structures of bayonets, holes and the like which are combined with one another. Due to the existence of the bayonet and the hole structure, the demoulding can not be normally carried out because the existing demoulding structure is clamped by the bayonet during demoulding. If the mold is forcibly removed, damage to the product or the mold may occur. Therefore, for the above reasons, there is a need for a three-stage linked demoulding mechanism capable of effectively and orderly demoulding products with a bayonet and hole structure to solve the above problems.

Disclosure of Invention

The invention aims to provide a three-stage linkage demoulding mechanism which can effectively carry out ordered demoulding on products with bayonet and hole structures.

The technical scheme of the invention is that the three-stage linkage demoulding mechanism comprises an upper mould and a lower mould, wherein the upper mould is in sliding fit with the lower mould; the lower die is provided with a demoulding mechanism and a product bracket for placing a product, and the product bracket is connected with the demoulding mechanism; the demolding mechanism comprises a first-stage demolding mechanism used for demolding from a bottom bayonet and a bottom hole of the product, a second-stage demolding mechanism used for demolding from the first bayonet on the side edge of the product, and a third-stage demolding mechanism used for demolding from the second bayonet on the side edge of the product, wherein the first-stage demolding mechanism is arranged below the lower die; the second-stage demoulding mechanism and the third-stage demoulding mechanism are arranged in the upper die and the lower die; the product bracket is connected with the third-stage demolding mechanism; the second-stage demoulding mechanism is in sliding fit with the third-stage demoulding mechanism.

The first-stage demolding mechanism comprises a driving device, a plurality of columnar bodies, a plurality of fixture block connecting columns and a plurality of fixture blocks, wherein the columnar bodies and the fixture block connecting columns are fixed on the driving device; the number of the fixture block connecting columns is the same as that of the fixture blocks; the fixture blocks are connected to the fixture block connecting columns in a one-to-one correspondence mode.

The second-stage demolding mechanism comprises a sliding clamping block, an inclined guide post and an inclined guide hole, wherein the sliding clamping block, the inclined guide post and the inclined guide hole are partially arranged in a product clamping opening; the sliding fixture block is in sliding fit with the third-stage demoulding mechanism; the inclined guide hole is arranged on the sliding fixture block; the size and shape of the inclined guide post are matched with those of the inclined guide hole, and the inclined guide post can be in sliding fit in the inclined guide hole; the inclined guide post is fixed on the lower die.

The third-stage demolding mechanism comprises a mounting frame, a sliding type clamping block and a driving oil cylinder; the driving oil cylinder and the mounting frame are fixed on the lower die; the sliding fixture block is in sliding fit with the mounting rack; and the driving oil cylinder is connected with the sliding type clamping block.

The third-stage demolding mechanism further comprises a limit sensing device, the limit sensing device comprises two sensors and an induction block, and the two sensors are mounted on the lower mold through a first support; the induction block is connected to the sliding type clamping block through a connecting rod.

After adopting the structure, compared with the prior art, the invention has the following advantages:

when the three-stage linkage demoulding mechanism is used for demoulding, the first-stage demoulding mechanism is driven to slide downwards for a section to enable the cylindrical body and the clamping block at the bottom to be separated, then the lower mould slides downwards to drive the inclined guide post to slide to enable the sliding clamping block to be separated, then the hydraulic oil cylinder acts to drive the third-stage demoulding mechanism to act, and finally the mould is opened to take out a product. Because the first-stage demoulding mechanism avoids the bayonet and the hole at the bottom from being clamped to damage the product, the second-stage demoulding mechanism and the third-stage demoulding mechanism realize the gradual separation from the buckle, so that the product can be smoothly demoulded, and the damage of the product or the mould is avoided.

Drawings

Fig. 1 is an exploded view of the three-stage linked demoulding mechanism according to the invention.

Fig. 2 is a schematic structural view of a three-stage linked ejector mechanism of the present invention (upper and lower dies are not shown).

Fig. 3 is a schematic view of a first orientation structure of the three-stage linked demoulding mechanism according to the present invention (upper mould, lower mould, product bracket are not shown).

Fig. 4 is a second orientation schematic diagram of the three-stage linked demoulding mechanism of the invention (upper mould, lower mould, product and product bracket are not shown).

The device comprises an upper die 1, an upper die 2, a lower die 3, a product 4, a product bracket 5, a driving device 6, a columnar body 7, a fixture block connecting column 8, a fixture block 9, a sliding fixture block 10, an inclined guide column 11, an inclined guide hole 12, a mounting frame 13, a sliding fixture block 14, a driving oil cylinder 15, a sensor 16, a sensing block 17, a first bracket 18 and a connecting rod.

Detailed Description

The invention is further described with reference to the following figures and specific examples.

As shown in fig. 1, 2, 3 and 4, the three-stage linkage demoulding mechanism comprises an upper die 1 and a lower die 2, wherein the upper die 1 is in sliding fit with the lower die 2, and the upper die 1 is connected with the lower die 2 through a guide pillar; the lower die 2 is provided with a demoulding mechanism and a product bracket 4 for placing a product 3, and the product bracket 4 is connected with the demoulding mechanism; the demolding mechanism comprises a first-stage demolding mechanism used for demolding from a bottom bayonet and a bottom hole of the product 3, a second-stage demolding mechanism used for demolding from a first bayonet on the side edge of the product 3 and a third-stage demolding mechanism used for demolding from a second bayonet on the side edge of the product 3, wherein the first-stage demolding mechanism is arranged below the lower die 2 and is driven by a hydraulic cylinder (not shown in the figure); the second-stage demolding mechanism and the third-stage demolding mechanism are arranged in the upper die 1 and the lower die 2, a die cavity is formed by the upper die 1, the lower die 2, the first-stage demolding mechanism, the second-stage demolding mechanism and the third-stage demolding mechanism, and then an injection molding product is formed by injection molding through an injection molding machine and then demolding is carried out; the product bracket 4 is connected with a third-stage demoulding mechanism; the second-stage demoulding mechanism is in sliding fit with the third-stage demoulding mechanism.

The first-stage demolding mechanism comprises a driving device 5, a plurality of cylindrical bodies 6, a plurality of fixture block connecting columns 7 and a plurality of fixture blocks 8, wherein the cylindrical bodies 6 and the fixture block connecting columns 7 are fixed on the driving device 5; the number of the fixture block connecting columns 7 is the same as that of the fixture blocks 8; the fixture blocks 8 are connected to the fixture block connecting columns 7 in a one-to-one correspondence manner; in this embodiment, the plurality of cylindrical bodies 6 and the plurality of fixture block connection posts 7 both penetrate through the product bracket 4, and the plurality of cylindrical bodies 6 and the plurality of fixture block connection posts 7 are both in sliding fit in the product bracket 4; the driving device 5 moves up and down to drive the plurality of columnar bodies 6, the plurality of fixture block connecting columns 7 and the plurality of fixture blocks 8 to move.

The second-stage demolding mechanism comprises a sliding clamping block 9, an inclined guide post 10 and an inclined guide hole 11 which are partially arranged in a clamping opening of the product 3; in the embodiment, the inclined guide hole 11 penetrates through the sliding fixture block 9 and the mounting frame 12; the sliding fixture block 9 is slidably fitted on the third-stage demolding mechanism, in this embodiment, the sliding fixture block 9 slides through the fit of the sliding rail and the sliding groove; the inclined guide hole 11 is arranged on the sliding fixture block 9; the inclined guide post 10 is matched with the inclined guide hole 11 in size and shape, the inclined guide post 10 can be in sliding fit in the inclined guide hole 11, and the sliding clamping block 9 can be driven to slide in the transverse direction through the up-and-down action of the inclined guide post 10; the inclined guide post 10 is fixed on the lower die 2, and the inclined guide post 10 is driven to move by the up-and-down sliding of the lower die 2.

The third-stage demolding mechanism comprises an installation frame 12, a sliding type clamping block 13 and a driving oil cylinder 14; the driving oil cylinder 14 and the mounting frame 12 are fixed on the lower die 2; the sliding fixture block 13 is slidably fitted on the mounting frame 12, and in this embodiment, the sliding fixture block 13 is slidably fitted on the mounting frame 12 in a sliding way of a sliding rail and a sliding groove; the driving oil cylinder 14 is connected with the sliding type fixture block 13.

The third-stage demoulding mechanism also comprises a limit sensing device, the limit sensing device comprises two sensors 15 and an induction block 16, and the two sensors 15 are arranged on the lower mould 2 through a first bracket 17; the sensing block 16 is connected to the sliding latch 13 through a connecting rod 18. The limit sensing device can effectively control the formation of the third-stage demoulding mechanism, so that the safety and the reliability are improved.

The foregoing is merely illustrative of the preferred embodiments of the present invention and is not to be construed as limiting the claims. But all changes which come within the scope of the invention are intended to be embraced therein.

Claims

1. A three-stage linkage demoulding mechanism comprises an upper mould (1) and a lower mould (2), wherein the upper mould (1) is in sliding fit with the lower mould (2); the method is characterized in that: the lower die (2) is provided with a demoulding mechanism and a product bracket (4) for placing a product (3), and the product bracket (4) is connected with the demoulding mechanism; the demolding mechanism comprises a first-stage demolding mechanism used for demolding from a bottom bayonet and a bottom hole of the product (3), a second-stage demolding mechanism used for demolding from a first bayonet on the side edge of the product (3), and a third-stage demolding mechanism used for demolding from a second bayonet on the side edge of the product (3), wherein the first-stage demolding mechanism is arranged below the lower die (2); the second-stage demoulding mechanism and the third-stage demoulding mechanism are arranged in the upper die (1) and the lower die (2); the product bracket (4) is connected with a third-stage demoulding mechanism; the second-stage demoulding mechanism is in sliding fit with the third-stage demoulding mechanism; the first-stage demolding mechanism comprises a driving device (5), a plurality of columnar bodies (6), a plurality of fixture block connecting columns (7) and a plurality of fixture blocks (8), wherein the columnar bodies (6) and the fixture block connecting columns (7) are fixed on the driving device (5); the number of the fixture block connecting columns (7) is the same as that of the fixture blocks (8); the fixture blocks (8) are connected to the fixture block connecting columns (7) in a one-to-one correspondence manner; the second-stage demolding mechanism comprises a sliding clamping block (9) partially arranged in a clamping opening of the product (3), an inclined guide post (10) and an inclined guide hole (11); the sliding fixture block (9) is in sliding fit with the third-stage demoulding mechanism; the inclined guide hole (11) is arranged on the sliding fixture block (9); the size and shape of the inclined guide post (10) are matched with those of the inclined guide hole (11), and the inclined guide post (10) can be in sliding fit in the inclined guide hole (11); the inclined guide post (10) is fixed on the lower die (2); the third-stage demolding mechanism comprises a mounting frame (12), a sliding type clamping block (13) and a driving oil cylinder (14); the driving oil cylinder (14) and the mounting rack (12) are fixed on the lower die (2); the sliding fixture block (13) is in sliding fit with the mounting rack (12); the driving oil cylinder (14) is connected with the sliding type clamping block (13).

2. A three-stage linked ejector mechanism according to claim 1, wherein: the third-stage demolding mechanism further comprises a limit sensing device, the limit sensing device comprises two sensors (15) and an induction block (16), and the two sensors (15) are installed on the lower mold (2) through a first support (17); the induction block (16) is connected to the sliding fixture block (13) through a connecting rod (18).