CN214324064U

CN214324064U - Demoulding mechanism for mould processing

Info

Publication number: CN214324064U
Application number: CN202022721956.4U
Authority: CN
Inventors: 张浩然
Original assignee: Suzhou Huitiancheng Sheet Metal Products Co ltd
Current assignee: Suzhou Huitiancheng Sheet Metal Products Co ltd
Priority date: 2020-11-23
Filing date: 2020-11-23
Publication date: 2021-10-01
Anticipated expiration: 2030-11-23

Abstract

The utility model provides a demoulding mechanism is used in mould processing relates to mould processing technology field. This demoulding mechanism is used in mould processing, comprising a base plate, the fixed grafting in upper end of bottom plate has the lower mould, and the interior diapire of lower mould is pegged graft and is had two first kicking blocks, the lower extreme fixedly connected with slide bar of first kicking block, and the lower extreme of slide bar slides in proper order and runs through the lower extreme of lower mould and bottom plate, and two circular slots have been seted up to the below that the inside of bottom plate is located the lower mould, and the lower extreme of two slide bars slides respectively and runs through two circular slots, the interior roof fixedly connected with little spring of circular slot. This demoulding mechanism is used in mould processing through setting up slide bar, first kicking block, little spring, ejector pin, second kicking block and big spring, has reached when drawing of patterns to the product, and the device can promote the product respectively with last mould and the detached effect of lower mould, has solved injection moulding product can glue in last mould or bed die when the drawing of patterns, leads to the product to be difficult to follow the problem that takes out in the mould.

Description

Demoulding mechanism for mould processing

Technical Field

The utility model relates to a mould processing technology field specifically is a demoulding mechanism is used in mould processing.

Background

The mould is various moulds and tools for obtaining required products by injection molding, blow molding, extrusion, die casting or forging forming, smelting, stamping and other methods in industrial production. In short, a mold is a tool used to make a shaped article, the tool being made up of various parts, different molds being made up of different parts. The processing of the appearance of an article is realized mainly through the change of the physical state of a formed material.

After present traditional injection mold injection moulding, the product can glue in last mould or bed die when the drawing of patterns, leads to the product to be difficult to take out, if take out the product in the mould by force, leads to the easy deformation condition that appears of injection moulding product, seriously influences the qualification rate of product, has still increased staff's working strength, has reduced the work efficiency of the preparation of moulding plastics.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a demoulding mechanism is used in mould processing has solved injection moulding product can glue in last mould or bed die when the drawing of patterns, leads to the product to be difficult to the problem of taking out in the mould.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a demoulding mechanism for mould processing comprises a bottom plate, a lower mould is fixedly inserted into the upper end of the bottom plate, two first ejector blocks are inserted into the inner bottom wall of the lower mould, the lower ends of the first ejector blocks are fixedly connected with slide bars, the lower ends of the slide bars sequentially slide and penetrate through the lower ends of the lower mould and the bottom plate, two circular grooves are formed in the bottom plate and are positioned below the lower mould, the lower ends of the two slide bars respectively slide and penetrate through the two circular grooves, a small spring is fixedly connected to the inner top wall of each circular groove, the slide bars are positioned in the small springs, a limiting plate is fixedly connected to the lower ends of the small springs, the limiting plate is fixedly sleeved outside the slide bars, the lower ends of the two slide bars are fixedly connected with cross bars, one ends of the two cross bars, which are far away from each other, are respectively hinged with a first connecting rod, one ends of the first connecting rods, which are far away from the cross bars, are hinged with a second connecting rod, square grooves are formed in the left side and the right side of the lower mould, the first connecting rod and the second connecting rod are both positioned in the square grooves, an upper die is arranged above the lower die.

The one end that first connecting rod was kept away from to two second connecting rods articulates both ends about last mould respectively, the upper end of going up the mould slides and runs through there are two second kicking blocks, the upper end of going up the mould is located and has seted up the mouth of moulding plastics between two second kicking blocks, the upper end fixedly connected with ejector pin of second kicking block, the top of going up the mould is provided with the elevator, the lower extreme of elevator respectively with the upper end fixed connection of two ejector pins, the upper end fixedly connected with roof of bottom plate, two pneumatic cylinders of lower extreme fixedly connected with of roof, the lower extreme of two pneumatic cylinders all with the upper end fixed connection of last mould, the upper end of roof slides and runs through there is the lifter, the lower extreme of lifter and the upper end fixed connection of elevator, the big spring of upper end fixedly connected with of elevator, the lifter is located the inside of big spring, the upper end fixed connection of big spring is at the lower extreme of roof.

Preferably, the upper end fixedly connected with stopper of lifter, the stopper is located the upper end of roof to the lower extreme of stopper contacts with the upper end of roof.

Preferably, the upper end of the first ejector block is flush with the inner bottom wall of the lower die, and the lower end of the second ejector block is flush with the lower end of the upper die.

Preferably, the limiting plate is of a circular structure, the diameter of the limiting plate is equal to the inner diameter of the circular groove, and the lower end of the limiting plate is in contact with the inner bottom wall of the circular groove.

Preferably, the two first connecting rods and the two second connecting rods are distributed in a mirror image mode by taking the lower die as the center, and an included angle is formed between the first connecting rods and the second connecting rods.

Preferably, go up mould and lower mould and match each other, the elevator is located the center of last mould, and two pneumatic cylinders use the elevator to be the mirror image distribution as the center.

(III) advantageous effects

The utility model provides a demoulding mechanism is used in mould processing. The method has the following beneficial effects:

1. the demoulding mechanism for processing the mould is provided with a sliding rod, a first ejector block, a small spring, an ejector rod, a second ejector block and a large spring, when a product needs to be demoulded after injection moulding, the hydraulic cylinder is controlled to move upwards at the moment, the hydraulic cylinder drives an upper mould to move upwards, the second ejector block and the ejector rod cannot move upwards temporarily under the elastic force of the large spring, so that the second ejector block can temporarily stay in the original position when the upper mould moves upwards, the second ejector block extrudes the product to promote the product to be separated from the upper mould, when the upper mould continues to move upwards until the upper mould contacts with a lifting block, the upper mould continues to move upwards and jacks up the lifting block, meanwhile, the upper mould drives a first connecting rod and a second connecting rod to move upwards together, so as to drive a cross rod to move upwards, the cross rod drives the sliding rod to move upwards, so that the first ejector block moves upwards, and the first ejector block promotes the product to be separated from a lower mould, the mould has driven the lifter plate certain distance that makes progress this moment to make the second kicking block keep away from the lower mould, conveniently take out the product, reached when carrying out the drawing of patterns to the product, the device can promote the product respectively with last mould and lower mould detached effect, solved injection moulding product when the drawing of patterns product can glue in last mould or bed die, lead to the product to be difficult to follow the problem that takes out in the mould.

2. This demoulding mechanism is used in mould processing, through setting up the lifter, stopper and limiting plate, after the product takes out from the mould, control pneumatic cylinder downstream, the pneumatic cylinder drives mould downstream, the lifter moves downstream under the effect of spring, when stopper and roof contact, the lifter stop motion, the second kicking block is kept level with the lower extreme of last mould this moment, when going up mould downstream, the little spring can extrude the limiting plate downwards, thereby make the diaphragm reset, the upper end of first kicking block is kept level with the inner diapire of lower mould this moment, automatic effect that resets first kicking block and second kicking block when having reached next use mould, it can't fix a position first kicking block and second kicking block after the drawing of patterns to have solved, lead to first kicking block and lower mould dislocation, the problem of second kicking block and last mould dislocation.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a partial sectional view of the present invention;

FIG. 3 is a semi-sectional view of the structure of part of the bottom plate, the lower die and the upper die of the present invention;

fig. 4 is an enlarged view of a portion a in fig. 2 according to the present invention.

The device comprises a base plate 1, a lower die 2, a first ejector block 3, a sliding rod 4, a circular groove 5, a small spring 6, a limiting plate 7, a cross rod 8, a first connecting rod 9, a second connecting rod 10, a square groove 11, an upper die 12, a second ejector block 13, an injection molding opening 14, an ejector rod 15, a lifting block 16, a top plate 17, a hydraulic cylinder 18, a lifting rod 19, a large spring 20 and a limiting block 21.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The embodiment of the utility model provides a demoulding mechanism for mould processing, as shown in figure 1-4, comprising a bottom plate 1, a lower mould 2 is fixedly inserted at the upper end of the bottom plate 1, two first ejector blocks 3 are inserted at the inner bottom wall of the lower mould 2, a slide bar 4 is fixedly connected with the lower end of the first ejector block 3, the lower end of the slide bar 4 sequentially penetrates through the lower ends of the lower mould 2 and the bottom plate 1 in a sliding manner, two circular grooves 5 are arranged at the lower part of the lower mould 2 in the bottom plate 1, the lower ends of the two slide bars 4 respectively penetrate through the two circular grooves 5 in a sliding manner, a small spring 6 is fixedly connected with the inner top wall of the circular groove 5, the slide bar 4 is arranged inside the small spring 6, a limiting plate 7 is fixedly connected with the lower end of the small spring 7, the limiting plate 7 is fixedly sleeved outside the slide bar 4, the limiting plate 7 is of a circular structure, the diameter of the limiting plate 7 is equal to the inner diameter of the circular groove 5, the lower end of the limiting plate 7 is contacted with the inner bottom wall of the circular groove 5, limiting plate 7 can compress little spring 6 when the rebound, make first kicking block 3 reset under little spring 6's elastic force effect, the equal fixedly connected with horizontal pole 8 of lower extreme of two slide bars 4, the one end that two horizontal poles 8 kept away from each other all articulates there is first connecting rod 9, the one end that horizontal pole 8 was kept away from to first connecting rod 9 articulates there is second connecting rod 10, mould 2 is the mirror image distribution for the center under first connecting rod 9 and two second connecting rod 10 are equal, the contained angle has between first connecting rod 9 and the second connecting rod 10, square groove 11 has all been seted up to the left and right sides that the upper end of bottom plate 1 is located lower mould 2, first connecting rod 9 all is located the inside of square groove 11 with second connecting rod 10, the top of lower mould 2 is provided with mould 12.

One end of each of the two second connecting rods 10, which is far away from the first connecting rod 9, is hinged to the left end and the right end of the upper die 12 respectively, the upper die 12 firstly pulls the second connecting rod 10 and the first connecting rod 9 when moving upwards, when the space between the first connecting rod 9 and the second connecting rod 10 is in a horizontal state, the upper die 12 moves upwards to drive the cross rod 8 to move upwards together, the upper end of the upper die 12 penetrates through the two second ejector blocks 13 in a sliding manner, the upper end of the first ejector block 3 is flush with the inner bottom wall of the lower die 2, the lower end of the second ejector block 13 is flush with the lower end of the upper die 12, the upper end of the upper die 12 is positioned between the two second ejector blocks 13 and is provided with an injection port 14, the upper end of each of the second ejector block 13 is fixedly connected with an ejector rod 15, a lifting block 16 is arranged above the upper die 12, the lower ends of the lifting blocks 16 are fixedly connected with the upper ends of the two ejector rods 15 respectively, the upper end of the bottom plate 1 is fixedly connected with a top plate 17, and the lower end of the top plate 17 is fixedly connected with two hydraulic cylinders 18, the lower ends of two hydraulic cylinders 18 are fixedly connected with the upper end of an upper die 12, the upper die 12 is matched with a lower die 2, a lifting block 16 is positioned at the center of the upper die 12, the two hydraulic cylinders 18 are distributed in a mirror image mode by taking the lifting block 16 as the center, a first ejector block 3 is precisely matched with the lower die 2, a second ejector block 13 is precisely matched with the upper die 12, so that a sealed space is formed between the upper die 12 and the lower die 2, a lifting rod 19 penetrates through the upper end of a top plate 17 in a sliding mode, a limiting block 21 is fixedly connected to the upper end of the lifting rod 19, the limiting block 21 is positioned at the upper end of the top plate 17, the lower end of the limiting block 21 is contacted with the upper end of the top plate 17, the limiting block 21 can limit the maximum distance of downward movement of the lifting rod 19, when the lower end of the limiting block 21 is contacted with the upper end of the top plate 17, the lifting rod 19 cannot move downwards continuously, at the lower end of the second ejector block 13 is level with the lower end of the upper die 12 at the moment, the lower end of the lifting rod 19 is fixedly connected with the upper end of the lifting block 16, the upper end of the lifting block 16 is fixedly connected with a large spring 20, the lifting rod 19 is positioned inside the large spring 20, and the upper end of the large spring 20 is fixedly connected with the lower end of the top plate 17.

The working principle is that when a product needs to be demolded after injection molding, the hydraulic cylinder 18 is controlled to move upwards at the moment, the hydraulic cylinder 18 drives the upper die 12 to move upwards, the second ejector block 13 and the ejector rod 15 cannot move upwards temporarily under the action of the elastic force of the large spring 20, so that the second ejector block 13 stays at the original position temporarily when the upper die 12 moves upwards, the second ejector block 13 extrudes the product to separate the product from the upper die 12, when the upper die 12 continues to move upwards until contacting the lifting block 16, the upper die 12 continues to move upwards and jacks up the lifting block 16, the lifting block 16 drives the ejector rod 15 and the second ejector block 13 to move upwards, and simultaneously the upper die 12 drives the first connecting rod 9 and the second connecting rod 10 to move upwards together to drive the cross rod 8 to move upwards, the cross rod 8 drives the sliding rod 4 to move upwards, so that the first ejector block 3 moves upwards, the first ejector block 3 moves out of the inner bottom wall of the lower die 2 to separate the product from the lower die 2, go up mould 12 and drive the lifter plate certain distance that moves up this moment to make second kicking block 13 keep away from lower mould 2, conveniently take out the product, the product resets pneumatic cylinder 18 after taking out, and second kicking block 13 resets under the spring action of big spring 20, and first kicking block 3 resets under the spring action of little spring 6, makes things convenient for the mould to use next time.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a demoulding mechanism for mould processing, includes bottom plate (1), its characterized in that: the upper end of the bottom plate (1) is fixedly spliced with a lower die (2), the inner bottom wall of the lower die (2) is spliced with two first ejector blocks (3), the lower ends of the first ejector blocks (3) are fixedly connected with slide bars (4), the lower ends of the slide bars (4) sequentially slide and penetrate through the lower ends of the lower die (2) and the bottom plate (1), the inner part of the bottom plate (1) is positioned below the lower die (2) and is provided with two circular grooves (5), the lower ends of the two slide bars (4) respectively slide and penetrate through the two circular grooves (5), the inner top wall of each circular groove (5) is fixedly connected with a small spring (6), the slide bars (4) are positioned inside the small springs (6), the lower ends of the small springs (6) are fixedly connected with limiting plates (7), the limiting plates (7) are fixedly sleeved outside the slide bars (4), the lower ends of the two slide bars (4) are both fixedly connected with cross rods (8), and one ends of the two cross rods (8) far away from each other are hinged with first connecting rods (9), a second connecting rod (10) is hinged to one end, away from the cross rod (8), of the first connecting rod (9), square grooves (11) are formed in the left side and the right side of the lower die (2) at the upper end of the bottom plate (1), the first connecting rod (9) and the second connecting rod (10) are located inside the square grooves (11), and an upper die (12) is arranged above the lower die (2);

one end of each second connecting rod (10) far away from the first connecting rod (9) is respectively hinged to the left end and the right end of the upper die (12), the upper end of the upper die (12) is provided with two second ejector blocks (13) in a sliding penetrating manner, the upper end of the upper die (12) is positioned between the two second ejector blocks (13) and is provided with an injection molding port (14), the upper end of each second ejector block (13) is fixedly connected with an ejector rod (15), a lifting block (16) is arranged above the upper die (12), the lower end of each lifting block (16) is respectively fixedly connected with the upper ends of the two ejector rods (15), the upper end of the bottom plate (1) is fixedly connected with a top plate (17), the lower end of the top plate (17) is fixedly connected with two hydraulic cylinders (18), the lower ends of the two hydraulic cylinders (18) are both fixedly connected with the upper end of the upper die (12), the upper end of the top plate (17) is provided with a lifting rod (19) in a sliding penetrating manner, the lower end of the lifting rod (19) is fixedly connected with the upper end of the lifting block (16), the upper end of the lifting block (16) is fixedly connected with a large spring (20), the lifting rod (19) is positioned in the large spring (20), and the upper end of the large spring (20) is fixedly connected with the lower end of the top plate (17).

2. The mold-processing demolding mechanism according to claim 1, wherein: the upper end fixedly connected with stopper (21) of lifter (19), stopper (21) are located the upper end of roof (17) to the lower extreme of stopper (21) contacts with the upper end of roof (17).

3. The mold-processing demolding mechanism according to claim 1, wherein: the upper end of the first ejector block (3) is flush with the inner bottom wall of the lower die (2), and the lower end of the second ejector block (13) is flush with the lower end of the upper die (12).

4. The mold-processing demolding mechanism according to claim 1, wherein: the limiting plate (7) is of a circular structure, the diameter of the limiting plate (7) is equal to the inner diameter of the circular groove (5), and the lower end of the limiting plate (7) is in contact with the inner bottom wall of the circular groove (5).

5. The mold-processing demolding mechanism according to claim 1, wherein: the two first connecting rods (9) and the two second connecting rods (10) are distributed in a mirror image mode by taking the lower die (2) as a center, and an included angle is formed between the first connecting rods (9) and the second connecting rods (10).

6. The mold-processing demolding mechanism according to claim 1, wherein: go up mould (12) and lower mould (2) and match each other, lift piece (16) are located the center of last mould (12), and two pneumatic cylinders (18) use lift piece (16) to be the mirror image distribution as the center.