CN219006893U

CN219006893U - Ejector mechanism of injection mold of injector

Info

Publication number: CN219006893U
Application number: CN202223082651.9U
Authority: CN
Inventors: 王小松
Original assignee: Suzhou Lunnate Industrial Technology Co ltd
Current assignee: Suzhou Lunnate Industrial Technology Co ltd
Priority date: 2022-11-21
Filing date: 2022-11-21
Publication date: 2023-05-12
Anticipated expiration: 2032-11-21

Abstract

The application discloses injection mold's ejection mechanism belongs to ejection mechanism technical field, including bearing the frame and being used for injection molding's mould, the cross-section of bearing the frame is the U type setting, mould fixed mounting is between bearing the left and right sides of frame, the top of mould is provided with a plurality of die cavities that are the array and distribute, fixed mounting has four bracing pieces that are the array and distribute between mould and the horizontal segment top of bearing the frame, a plurality of slidable mounting has the ejector plate between the bracing piece, the top fixed mounting of ejector plate has the multiunit to be the first ejector pin that the array distributes, a plurality of first ejector pin all is run through and sliding connection with the mould, every group first ejector pin and adjacent syringe ear assorted. The utility model has novel structure, has double ejection structures for the ear part and the bottom part of the injector, improves the stability of the injector in the demoulding process, and is suitable for popularization.

Description

Ejector mechanism of injection mold of injector

Technical Field

The application relates to the technical field of ejection mechanisms, in particular to an ejection mechanism of an injection mold of an injector.

Background

The injector is a common medical appliance, is mainly used for injecting liquid medicine or extracting liquid, is generally produced by adopting an injection molding method, has the advantages of high production speed and high efficiency, can realize automation of operation, can be simplified to a large number in shape, can be large to small in size, can form a product with a precise size, can form a product with a complex shape, and is suitable for the field of molding processing of mass production, products with complex shapes and the like.

In the process of demolding of the injector after the injection mold is formed in the injection mold, the depth of the injector is large, the thickness of the side wall of the injector is thin, the packing force of the injector applied to the injection mold is large, the pressure born by the smaller wall surface of the injector is large, and the demolding is difficult to achieve and needs to be further improved.

Therefore, to solve such problems, we propose an ejection mechanism of an injection mold of an injector.

Disclosure of Invention

In order to solve the in-process of syringe drawing of patterns after injection mold internal shaping, because syringe degree of depth is great and lateral wall thickness is thin, the syringe receives injection mold's packing power big, and the pressure that bears on the less wall of syringe is big, causes the drawing of patterns difficulty, influences product quality's problem, this application provides an injection mold's ejection mechanism, adopts following technical scheme:

the utility model provides an ejector mechanism of syringe injection mold, includes the carrier and is used for the injection molding's of syringe mould, the cross-section of carrier is the U type setting, mould fixed mounting is between the left and right sides of carrier, the top of mould is provided with a plurality of die cavities that are the array and distribute, fixed mounting has four bracing pieces that are the array and distribute between the horizontal segment top of mould and carrier, a plurality of slidable mounting has the ejector plate between the bracing piece, the top fixed mounting of ejector plate has the first ejector pin that the multiunit is the array and distributes, a plurality of first ejector pin all is run through and sliding connection with the mould, every group first ejector pin and adjacent syringe ear assorted, the horizontal segment top of carrier is provided with the actuating mechanism that is used for driving the ejector plate to go up and down, the bottom fixed mounting of ejector plate has a plurality of support frames that are the array and distribute, a plurality of support frames respectively with adjacent die cavity assorted, a plurality of all be provided with the ejecting subassembly that is used for ejecting the syringe between the left and right sides of support frame.

Through adopting above-mentioned technical scheme, actuating mechanism drive ejector plate rises, and multiunit first ejecting is ejecting to the ear of syringe, and ejecting subassembly is assisted ejecting to the bottom of syringe, has had the dual ejection structure to syringe ear and bottom, has improved the stability of syringe at the drawing of patterns process.

Further, a plurality of square holes distributed in an array are formed in the top end of the ejector plate, and the ejector plate is in sliding connection with the die through the square holes.

By adopting the technical scheme, the square hole of the ejector plate reserves a space for sliding with the die.

Further, a plurality of spacing pipes that run through and array distribution are fixed mounting in the top of liftout plate, a plurality of spacing pipes all are the slip with adjacent bracing piece and cup joint the setting.

By adopting the technical scheme, the limiting pipe reduces the abrasion between the ejector plate and the plurality of support rods.

Further, the driving mechanism comprises an electric hydraulic cylinder, a cylinder body of the electric hydraulic cylinder is fixedly arranged at the top end of the horizontal section of the bearing frame, and the top end of a piston rod of the electric hydraulic cylinder is fixedly connected with the bottom end of the ejector plate.

By adopting the technical scheme, the lifting driving mechanism has the driving effect on lifting of the ejector plate among the plurality of support rods.

Further, the ejecting subassembly includes a plurality of lifter plates that are the array and distribute, lifter plate slidable mounting is between the left and right sides of support frame, and is a plurality of the equal fixed mounting in top of lifter plate has three second ejector pin, and is three the second ejector pin is the circumference array and distributes about adjacent die cavity, and is a plurality of the second ejector pin is run through and sliding connection with the mould.

Through adopting above-mentioned technical scheme, a plurality of second ejections are to the bottom of syringe carry out supplementary ejecting, have had the double ejection structure to syringe ear and bottom.

Further, the left and right ends of the lifting plate are fixedly provided with two bulges which are symmetrically arranged, the left and right sides of the supporting frame are provided with two sliding grooves which are symmetrically arranged, and the bulges of the lifting plate are slidably arranged in the sliding grooves of the supporting frame.

By adopting the technical scheme, the lifting plate has the supporting function on the second ejector pin.

Further, the bottom fixed mounting of lifter plate has a plurality of spacing springs that are the array and distribute, a plurality of the bottom of spacing spring all is fixed connection with the horizontal segment top of support frame.

Through adopting above-mentioned technical scheme, spacing spring has the elastic support effect to the lifter plate.

In summary, the present application includes the following beneficial technical effects:

through the installation to bearing frame and mould, the electro-hydraulic cylinder drives the ejector plate and rises, and the first ejecting ear to the syringe of multiunit is ejecting, and a plurality of spacing springs cooperate the lifter plate to the effect that a plurality of second ejector pins played elastic support, and a plurality of second ejections are assisted ejecting to the bottom of syringe, have had the dual ejection structure to syringe ear and bottom, have improved the stability of syringe at the drawing of patterns process.

Drawings

FIG. 1 is a schematic structural diagram of the present application;

FIG. 2 is a cross-sectional view of the mold of the present application;

FIG. 3 is a mounting block diagram of an ejector plate of the present application;

fig. 4 is a mounting structure diagram of the lifter plate of the present application.

The reference numerals in the figures illustrate:

1. a carrier; 2. a mold; 3. a cavity; 4. a support rod; 5. an ejector plate; 6. a first ejector pin; 7. a limiting tube; 8. an electro-hydraulic cylinder; 9. a support frame; 10. a lifting plate; 11. a chute; 12. a limit spring; 13. and a second ejector pin.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application; it is apparent that the described embodiments are only a part of the embodiments of the present application, not all of the embodiments, and all other embodiments obtained by a person having ordinary skill in the art without making creative efforts based on the embodiments in the present application are within the scope of protection of the present application.

In the description of the present application, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "top/bottom", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of description of the present application and to simplify the description, and do not indicate or imply that the devices or elements to be referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "configured to," "engaged with," "connected to," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.

The present application is described in further detail below in conjunction with figures 1-4.

Referring to fig. 1-3, an ejector mechanism of an injection mold for an injector includes a carrier 1 and a mold 2 for injection molding of the injector, wherein a section of the carrier 1 is in a U-shaped configuration, the mold 2 is fixedly installed between left and right sides of the carrier 1, a plurality of cavities 3 distributed in an array are provided at a top end of the mold 2, the ejector mechanism has an auxiliary effect on injection molding of the injector, four supporting rods 4 distributed in an array are fixedly installed between the mold 2 and a top end of a horizontal section of the carrier 1, the ejector mechanism has a supporting effect, an ejector plate 5 is slidably installed between the supporting rods 4, a plurality of square holes distributed in an array are provided at a top end of the ejector plate 5, the ejector plate 5 is slidably connected with the mold 2 through the square holes, a plurality of groups of first ejector pins 6 distributed in an array are fixedly installed at a top end of the ejector plate 5, each group of first ejector pins 6 is matched with adjacent injector ears, the ejector pins have an ejector effect on the injector, a plurality of tubes 7 distributed in an array are fixedly installed at a top end of the ejector plate 5, and the ejector pins 7 are distributed in an array and are sleeved with the adjacent tubes 4, and the ejector pins are limited by the limiting tubes are arranged.

Referring to fig. 1, fig. 3 and fig. 4, the horizontal segment top of carrier 1 is provided with the actuating mechanism that is used for driving liftout plate 5 to go up and down, actuating mechanism includes electric hydraulic cylinder 8, cylinder body fixed mounting with electric hydraulic cylinder 8 is in the horizontal segment top of carrier 1, piston rod top and the bottom of liftout plate 5 of electric hydraulic cylinder 8 are fixed connection, have the driving effect to liftout plate 5 goes up and down, there are a plurality of support frames 9 that are the array and distribute at the bottom fixed mounting of liftout plate 5, a plurality of support frames 9 respectively with adjacent die cavity 3 assorted, have the supporting effect, all be provided with the liftout subassembly that is used for ejecting the syringe between the left and right sides of a plurality of support frames 9, the liftout subassembly includes a plurality of lifter plates 10 that are the array and distributes, with lifter plate 10 slidable mounting between the left and right sides of support frame 9, the left and right sides of lifter plate 10 all fixed be provided with two archs that are the symmetry setting, two spouts 11 that are the symmetry setting are all are provided on the left and right sides of support frame 9, protruding slidable mounting of lifter plate 10 is in spout 11 of support frame 9, have the supporting effect, bottom fixed mounting at lifter plate 10 is the bottom fixed mounting at the lifter plate 10 is a plurality of pins 12 that are the adjacent die cavity 13, the circumference is connected at a plurality of tip of pins 13, and the tip of a plurality of pins 13 that are the adjacent die carrier 13, and have the circumference that is connected with a plurality of pins 13, the tip of the ejector plate 13, and the tip of the ejector plate is connected.

The implementation principle of the embodiment of the application is as follows: after the injector is molded in the die 2, the electro-hydraulic cylinder 8 drives the ejector plate 5 to ascend, the plurality of groups of first ejector pins 6 eject the ear parts of the injector, meanwhile, the plurality of limiting springs 12 cooperate with the lifting plate 10 to elastically support the plurality of second ejector pins 13, and the plurality of second ejector pins 13 assist in ejecting the bottom of the injector.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. The utility model provides an ejection mechanism of syringe injection mold, includes carrier (1) and is used for injection molding's mould (2), its characterized in that: the cross-section of bearing frame (1) is U type setting, mould (2) fixed mounting is between the left and right sides of bearing frame (1), the top of mould (2) is provided with a plurality of die cavities (3) that are the array and distribute, fixed mounting has four bracing pieces (4) that are the array and distribute between the horizontal segment top of mould (2) and bearing frame (1), a plurality of slidable mounting has ejector plate (5) between bracing piece (4), the top fixed mounting of ejector plate (5) has multiunit first ejector pin (6) that are the array and distribute, a plurality of first ejector pin (6) all are run through and sliding connection with mould (2), every group first ejector pin (6) and adjacent syringe ear assorted, the horizontal segment top of bearing frame (1) is provided with the actuating mechanism that is used for driving ejector plate (5) to go up and down, the bottom fixed mounting of ejector plate (5) has a plurality of support frames (9) that are the array and distribute, a plurality of support frames (9) respectively with adjacent (3) the top of ejector plate (9) each side be provided with between the equal die cavity of injection device of a plurality of support frames (9).

2. The ejection mechanism of an injection mold of an injector of claim 1, wherein: a plurality of square holes distributed in an array are formed in the top end of the ejector plate (5), and the ejector plate (5) is in sliding connection with the die (2) through the square holes.

3. The ejection mechanism of an injection mold of an injector of claim 2, wherein: the top of liftout plate (5) fixed mounting is a plurality of spacing pipes (7) that run through and array distribution, and is a plurality of spacing pipes (7) all are slip socket joint setting with adjacent bracing piece (4).

4. The ejection mechanism of an injection mold of an injector of claim 1, wherein: the driving mechanism comprises an electric hydraulic cylinder (8), the cylinder body of the electric hydraulic cylinder (8) is fixedly arranged at the top end of the horizontal section of the bearing frame (1), and the top end of a piston rod of the electric hydraulic cylinder (8) is fixedly connected with the bottom end of the ejector plate (5).

5. The ejection mechanism of an injection mold of an injector of claim 1, wherein: the ejection assembly comprises a plurality of lifting plates (10) which are distributed in an array manner, the lifting plates (10) are slidably mounted between the left side and the right side of the supporting frame (9), three second ejection pins (13) are fixedly mounted at the top ends of the lifting plates (10), the three second ejection pins (13) are distributed in a circumferential array manner relative to adjacent cavities (3), and the second ejection pins (13) are in penetrating and sliding connection with the die (2).

6. The ejection mechanism of an injection mold of an injector of claim 5, wherein: the lifting plate (10) is characterized in that two protrusions which are symmetrically arranged are fixedly arranged at the left end and the right end of the lifting plate (10), two sliding grooves (11) which are symmetrically arranged are formed in the left side and the right side of the supporting frame (9), and the protrusions of the lifting plate (10) are slidably arranged in the sliding grooves (11) of the supporting frame (9).

7. The ejection mechanism of an injection mold of an injector of claim 6, wherein: the bottom fixed mounting of lifter plate (10) has a plurality of spacing springs (12) that are the array and distribute, a plurality of the bottom of spacing spring (12) all is fixed connection with the horizontal segment top of support frame (9).