CN212920273U

CN212920273U - Multi-core sliding mechanism of injection mold

Info

Publication number: CN212920273U
Application number: CN202021184707.XU
Authority: CN
Inventors: 楼云光
Original assignee: Zhejiang Guangyue Environmental Protection Technology Co ltd
Current assignee: Zhejiang Guangyue Environmental Protection Technology Co ltd
Priority date: 2020-06-24
Filing date: 2020-06-24
Publication date: 2021-04-09
Anticipated expiration: 2030-06-24

Abstract

Injection mold many cores slide mechanism, including a die cavity and sliding bottom, die cavity and sliding bottom are fixed with the injection molding machine respectively, it has the perforation to open in sliding bottom, sliding bottom is last to set up limiting plate and sliding plate, the limiting plate is fixed with sliding bottom through the fastener mutually, the limiting plate cooperatees with the both sides of sliding plate, one side at sliding bottom sets up drive arrangement, drive arrangement connects the sliding plate, it has the mounting hole more than two to open in the sliding plate, set up thimble board in each mounting hole respectively, thimble board and thimble down, it is upper and lower, the thimble board is driven by thrust unit, set up the core more than two on the sliding plate, the bottom and the mounting hole of core correspond. When one of the mold cores and the mold cavity are used for injection molding, the rest mold cores and plastic parts which are used for injection molding are cooled outside, and the cooling and shaping of the plastic parts do not occupy the injection molding time, so that the production efficiency of the mold can be effectively improved.

Description

Multi-core sliding mechanism of injection mold

Technical Field

The utility model relates to an injection mold especially relates to injection mold multicore core slide mechanism.

Background

In an injection mold, if the wall thickness of a plastic part is thick, the plastic part needs to be cooled and shaped for a long time after injection molding, and then can be ejected out for demolding. The existing injection mold generally adopts a cavity and a core structure, after the plastic part is subjected to injection molding, the next injection molding can be carried out only after the plastic part is cooled, shaped and ejected, and the production efficiency of the mold is seriously influenced because the cooling and shaping time is long and the mold cannot carry out injection molding in the period.

Disclosure of Invention

The utility model aims at overcoming the shortcoming that prior art exists, provide one kind and be favorable to the working of plastics cooling to finalize the design, improve the injection mold many cores slide mechanism of mould production efficiency.

The utility model discloses injection mold many cores slide mechanism's technical scheme is: including a die cavity and sliding bottom, die cavity and sliding bottom are fixed with the injection molding machine respectively, it has the perforation to open in sliding bottom, last limiting plate and the sliding plate of setting up of sliding bottom, the limiting plate is fixed mutually through fastener and sliding bottom, the limiting plate cooperatees with the both sides of sliding plate, set up drive arrangement in one side of sliding bottom, drive arrangement connects the sliding plate, it has the mounting hole more than two to open in the sliding plate, set up thimble board in each mounting hole respectively, thimble board and thimble down, it is upper and lower that the thimble board is driven by thrust unit, set up the core more than two on the sliding plate, the bottom and the mounting hole of core correspond.

The utility model discloses a multi-core sliding mechanism of an injection mould, during operation, the injection moulding machine drives the sliding base to move upwards, so that a cavity and a first core are matched, hot melt glue stock is injected into the cavity and the first core, when the glue stock is cooled and shaped in a short time, a plastic piece is obtained (not completely cooled and shaped), at the moment, the mould is opened, the cavity and the first core are opened, the plastic piece is left on the first core, then a driving device drives a sliding plate to slide to one side, so that a second core corresponds to the cavity, the second core and the cavity are continuously matched and injected, the first core with the plastic piece is separately cooled outside, when the cooling and shaping are finished, an upper ejector plate and an ejector pin are driven by a pushing device to eject the cooled and shaped plastic piece, at the moment, the second core and the cavity in a matched state are also injected, and the mold is opened, the second mold core is driven by the driving device to move to the outside for independent cooling, at the moment, the first mold core corresponds to the mold cavity, mold closing is continued for injection molding (a third mold core can also be arranged on the sliding plate, mold closing is correspondingly carried out by the third mold core and the mold cavity, the number of the mold cores can be set according to the time required by cooling the plastic part, if the time for cooling and shaping the plastic part is twice of the time for injection molding, only two mold cores are needed to be set, if the time for completely cooling and shaping the plastic part is three times of the time for injection molding, three mold cores are needed to be set. This scheme injection mold multicore core slide mechanism, through set up the sliding plate on sliding base, set up the core more than two on the sliding plate, when one of them core is moulded plastics with the die cavity, all the other cores and the working of plastics of having accomplished the moulding plastics cool off in the external world, the cooling of working of plastics is stereotyped and is not taken the time of moulding plastics, thereby can effectively improve the production efficiency of mould, the core more than two in addition can adopt the same shape, also can adopt different shapes, adopt the core of different shapes, can a pair mould produces the product of multiple not isostructure, thereby reduce the development cost of mould.

The utility model discloses injection mold multicore core slide mechanism, drive arrangement be side hydro-cylinder or cylinder.

The pushing device is a top rod or a bottom oil cylinder of the injection molding machine.

Guide rods are arranged at four corners of each mold core respectively, guide holes are formed in the four corners of the mold cavity, guide sleeves are arranged in the guide holes, and the guide rods are matched with the guide sleeves. The guide rod and the guide sleeve are arranged, so that the guide effect is achieved on the die opening and closing action of the cavity and the core, and the die opening and closing action is stable and reliable.

Drawings

FIG. 1 is a schematic structural view of a multi-core slide mechanism of an injection mold according to the present invention;

FIG. 2 is a schematic cross-sectional view taken along line A-A of FIG. 1;

fig. 3 is a perspective view of the guide sleeve disposed in the guide hole of the cavity.

Detailed Description

The utility model relates to a many cores slide mechanism of injection mold, as shown in fig. 1-fig. 3, including a die cavity 1 and sliding base 2, die cavity and sliding base are fixed with the machine of moulding plastics respectively, it has perforation 3 to open in sliding base, sliding base is last to set up limiting plate 4 and sliding plate 5, the limiting plate is fixed with sliding base 2 through the fastener, the limiting plate cooperatees with sliding plate 5's both sides, one side at sliding base sets up drive arrangement, drive arrangement connects sliding plate 5, it has mounting hole 6 more than two to open in the sliding plate, set up thimble board 7 in each mounting hole respectively, thimble board 8 and thimble 9 down, on, the thimble board drives by thrust unit down, set up core 10 more than two on the sliding plate, the bottom of core is corresponding with mounting hole 6. When the injection molding machine works, the injection molding machine drives the sliding base 2 to move upwards, so that the cavity 1 and the first core 10 are matched, hot-melt adhesive is injected into the cavity and the first core, when the adhesive is cooled and shaped in a short time to obtain a plastic part (not completely cooled and shaped), the mold is opened at the moment, the cavity 1 and the first core 10 are opened, the plastic part is left on the first core, then the driving device drives the sliding plate 5 to slide to one side, so that the second core 10 corresponds to the cavity 1, the second core and the cavity are continuously matched and injected, the first core with the plastic part is separately cooled at the outside, after the cooling and shaping are completed, the upper ejector pin plate 7, the lower ejector pin plate 8 and the ejector pin 9 are driven by the pushing device to eject the cooled and shaped plastic part for demolding, at the moment, the second core 10 and the cavity 1 in a matched state are also injected and opened, the second mold core 10 is driven by the driving device to move to the outside for independent cooling, at the moment, the first mold core 10 corresponds to the mold cavity 1, mold closing is continued for injection molding (a third mold core can be arranged on the sliding plate 5, the third mold core 10 corresponds to the mold cavity 1 for mold closing, the number of the mold cores can be set according to the time required by cooling of plastic parts, if the time for cooling and shaping of the plastic parts is twice of the injection molding time, only two mold cores need to be set, if the time for complete cooling and shaping of the plastic parts is three times of the injection molding time, three mold cores need to be set, and the like). This scheme injection mold multicore core slide mechanism, through set up sliding plate 5 on sliding base 2, set up core 10 more than two on the sliding plate, when one of them core is moulded plastics with die cavity 1, all the other cores and the working of plastics of having accomplished the moulding plastics cool off in the external world, the cooling design of working of plastics does not occupy the time of moulding plastics, thereby can effectively improve the production efficiency of mould, core more than two in addition can adopt the same shape, also can adopt different shapes, adopt the core of different shapes, but a pair mould produces the product of multiple not isostructure, thereby reduce the development cost of mould. The driving device is a side oil cylinder 11 or an air cylinder. The pushing device is a top rod or a bottom oil cylinder of the injection molding machine. Guide rods 12 are respectively arranged at four corners of each mold core 10, guide holes are formed in four corners of the mold cavity 1, guide sleeves 13 are arranged in the guide holes, and the guide rods are matched with the guide sleeves. The guide rod 12 and the guide sleeve 13 are arranged, so that the guide function is realized on the mold opening and closing action of the cavity 1 and the mold core 10, and the stable and reliable mold opening and closing action is ensured.

Claims

1. Injection mold many cores slide mechanism, its characterized in that: including a die cavity (1) and sliding bottom (2), die cavity and sliding bottom are fixed with the machine of moulding plastics respectively, it has perforation (3) to open in sliding bottom, sliding bottom is last to set up limiting plate (4) and sliding plate (5), the limiting plate is fixed mutually with sliding bottom (2) through the fastener, the limiting plate cooperatees with the both sides of sliding plate (5), one side at sliding bottom sets up drive arrangement, drive arrangement connects sliding plate (5), it has mounting hole (6) more than two to open in the sliding plate, set up thimble board (7) respectively in each mounting hole, thimble board (8) and thimble (9) down, on, the thimble board is driven by thrust unit down, set up core (10) more than two on the sliding plate, the bottom and the mounting hole (6) of core are corresponding.

2. The injection mold multi-core slide of claim 1, wherein: the driving device is a side oil cylinder (11) or an air cylinder.

3. The injection mold multi-core slide of claim 1, wherein: the pushing device is a top rod or a bottom oil cylinder of the injection molding machine.

4. The injection mold multi-core slide of claim 1, wherein: guide rods (12) are respectively arranged at four corners of each mold core (10), guide holes are formed in the four corners of the mold cavity (1), guide sleeves (13) are arranged in the guide holes, and the guide rods are matched with the guide sleeves.