CN215434843U

CN215434843U - Ejector pin plate reset buffer mechanism for injection mold

Info

Publication number: CN215434843U
Application number: CN202121334086.3U
Authority: CN
Inventors: 刘嘉宜
Original assignee: Momexx Technology Suzhou Co Ltd
Current assignee: Momexx Technology Suzhou Co Ltd
Priority date: 2021-06-16
Filing date: 2021-06-16
Publication date: 2022-01-07
Anticipated expiration: 2031-06-16

Abstract

The utility model relates to an ejector plate resetting buffer mechanism for an injection mold, which comprises a fixed support, wherein a fixed mold is fixedly connected to the inner side of the top end surface of the fixed support; when moulding plastics, the tip of thimble keeps flat with the die holder surface, when resetting the sliding seat through hydraulic push rod, the location inserted bar breaks away from the fixed mould under powerful spring's connection, and powerful spring can upwards jack up the movable mounting panel this moment, movable mounting panel cooperation ejecting spring can the rebound thimble board, so that realize the thimble board and reset, and thimble ejector die demolding phenomenon can appear at its in-process that resets, after the demolding, the flexible protection base that sets up, can avoid the thimble board to reset when too big because of ejecting spring elastic action, and lead to the thimble board to reciprocate the range grow, improve the barrier propterty to the thimble board, the thimble has also been protected simultaneously, prevent that the thimble from taking place to warp etc., to sum up, no matter be when moulding plastics or after moulding plastics, the protection nature to the thimble board is higher, avoid taking place the part impaired and lead to economic loss.

Description

Ejector pin plate reset buffer mechanism for injection mold

Technical Field

The utility model relates to an ejector plate resetting buffer mechanism for an injection mold, and belongs to the technical field of mold devices.

Background

An injection mold is a tool for producing plastic products; the injection molding is a processing method used in batch production of parts with complex shapes, and particularly relates to a method for injecting heated and melted plastic into a mold cavity under high pressure by an injection molding machine, and obtaining a formed product after cooling and solidification.

However, most thimble boards are when using, and its protective capacities that resets buffer gear is relatively poor, not only causes the thimble board impaired easily, causes the thimble impaired easily moreover, can cause economic loss for the user, so need an injection mold with thimble board buffer gear that resets to supply people to use.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an ejector plate reset buffer mechanism for an injection mold, wherein the end part of an ejector pin is flush with the surface of a mold seat during injection molding, when a movable seat is reset through a hydraulic push rod after the injection molding is finished, a positioning insertion rod is separated from a fixed mold under the connection of a strong spring, the strong spring can upwards jack a movable mounting plate at the moment, the movable mounting plate can upwards move the ejector plate by matching with the ejector spring so as to realize the reset of the ejector plate, the ejector pin is ejected out of the mold during the reset process of the ejector plate, after the ejector plate is ejected, the arranged flexible protective base can avoid the phenomenon that the ejector plate is upwards moved and downwards due to the overlarge elastic action of the ejector spring during the reset of the ejector plate, improve the protective performance of the ejector plate, protect the ejector pin, prevent the ejector pin from deforming and the like, and has higher protective performance on the ejector plate during injection molding and after injection molding, the economic loss caused by the damage of parts is avoided, so as to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme:

an ejector plate reset buffer mechanism for an injection mold comprises a fixed support, wherein a fixed mold is fixedly connected to the inner side of the top end face of the fixed support, an injection molding channel is formed in the inner side of the fixed mold, a movable seat is arranged on the inner side of the bottom end face of the fixed support, a hydraulic push rod is fixedly connected to the bottom end face of the fixed support, one end of the hydraulic push rod penetrates through the bottom end face of the fixed support and is fixedly connected to the movable seat, an installation bin is formed in the inner side of the movable seat, a movable installation plate is arranged on the inner side of the installation bin, a strong spring is fixedly connected to the bottom of the movable installation plate, the other end of the strong spring is fixedly connected to the movable seat, a positioning insertion rod is fixedly connected to the top of the movable installation plate, an ejection spring is sleeved on the outer side of the positioning insertion rod, and one end of the ejection spring is fixedly connected to the movable installation plate, the other end of the ejection spring is fixedly connected with an ejector plate, one side of the movable seat is fixedly connected with a die holder, and the inner side of the movable seat and the inner side of the die holder are both provided with connecting through holes.

Furthermore, a positioning insertion hole is formed in the inner side of the fixed die, and the aperture size of the positioning insertion hole is matched with the rod diameter size of the positioning insertion rod.

Furthermore, the bottom end face of the ejector pin plate is fixedly connected with a protection base, and the protection base is made of a flexible structure.

Furthermore, the top of thimble board fixedly connected with thimble, just the number of thimble is a plurality of.

Furthermore, the size structure of location inserted bar and connect the through-hole size structure phase-match, just the location inserted bar runs through sliding connection in the sliding seat through connect the through-hole.

Furthermore, the thimble passes through sliding connection in movable seat and die holder respectively through the connecting through-hole.

The utility model has the beneficial effects that:

through the arrangement of the strong spring, the positioning insertion rod, the ejection spring, the protective base and the like, during injection molding, the end part of the ejector pin is flush with the surface of the die holder, when the movable seat is reset through the hydraulic push rod after the injection molding is finished, the positioning insertion rod is separated from the fixed die under the connection of the strong spring, and the strong spring can upwards jack the movable mounting plate at the moment, the movable mounting plate can upwards move the ejector pin plate by matching with the ejection spring so as to realize the reset of the ejector pin plate, and the ejector pin ejection phenomenon can occur in the resetting process of the ejector pin plate, after the ejector pin plate is ejected, the arranged flexible protective base can avoid the phenomenon that the ejector pin plate is excessively large in elastic action due to the ejection spring during the reset of the ejector pin plate, so that the up-down moving amplitude of the ejector pin plate is increased, the protective performance of the ejector pin plate is improved, the ejector pin is also protected, the deformation of the ejector pin is prevented, and the like, and in sum, the protective performance of the ejector pin plate is higher during injection molding or after injection molding, avoiding the damage of parts and the economic loss.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model without limiting the utility model.

FIG. 1 is a schematic view of the overall structure of an ejector plate return buffer mechanism for an injection mold according to the present invention;

FIG. 2 is a schematic structural view of the ejector plate return buffer mechanism for an injection mold at the position A in FIG. 1;

reference numbers in the figures: 1. fixing a bracket; 2. fixing a mold; 3. positioning the jack; 4. injection molding a channel; 5. a movable seat; 6. a hydraulic push rod; 7. installing a bin; 8. a movable mounting plate; 9. a strong spring; 10. positioning the inserted rod; 11. ejecting a spring; 12. an ejector plate; 13. a protective base; 14. a thimble; 15. a die holder; 16. and connecting the through holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution:

an ejector plate reset buffer mechanism for an injection mold comprises a fixed support 1, wherein a fixed mold 2 is fixedly connected to the inner side of the top end face of the fixed support 1, an injection molding channel 4 is formed in the inner side of the fixed mold 2, a movable seat 5 is arranged on the inner side of the bottom end face of the fixed support 1, a hydraulic push rod 6 is fixedly connected to the bottom end face of the fixed support 1, one end of the hydraulic push rod 6 penetrates through the bottom end face of the fixed support 1 and is fixedly connected to the movable seat 5, an installation bin 7 is formed in the inner side of the movable seat 5, a movable installation plate 8 is arranged on the inner side of the installation bin 7, a strong spring 9 is fixedly connected to the bottom of the movable installation plate 8, the other end of the strong spring 9 is fixedly connected to the movable seat 5, a positioning insertion rod 10 is fixedly connected to the top of the movable installation plate 8, and an ejection spring 11 is sleeved on the outer side of the positioning insertion rod 10, and one end of the ejection spring 11 is fixedly connected to the movable mounting plate 8, the other end of the ejection spring 11 is fixedly connected with an ejector plate 12, one side of the movable seat 5 is fixedly connected with a mold base 15, and the inner side of the movable seat 5 and the inner side of the mold base 15 are both provided with connecting through holes 16.

As a preferred technical scheme of the utility model, the inner side of the fixed die 2 is provided with a positioning insertion hole 3, and the aperture size of the positioning insertion hole 3 is matched with the rod diameter size of the positioning insertion rod 10; the fixed die 2 and the movable seat 5 can be conveniently connected for use.

As a preferred technical scheme of the utility model, the bottom end face of the ejector plate 12 is fixedly connected with a protection base 13, and the protection base 13 is made of a flexible structure; the flexible protective base 13 can avoid the increase of the up-and-down movement amplitude of the ejector plate 12 caused by the overlarge elastic action of the ejector spring 11 when the ejector plate 12 is reset, and simultaneously, the ejector 14 is protected.

As a preferred technical solution of the present invention, the top of the ejector plate 12 is fixedly connected with a plurality of ejector pins 14, and the number of the ejector pins 14 is plural; is favorable for the use of ejecting and demoulding.

As a preferred technical solution of the present invention, the size structure of the positioning insertion rod 10 matches the size structure of the connecting through hole 16, and the positioning insertion rod 10 is connected to the movable seat 5 through the connecting through hole 16 in a penetrating and sliding manner; the positioning insertion rod 10 is matched with a strong spring 9 for use, so that the safe and stable movement of the positioning insertion rod is ensured.

As a preferred technical solution of the present invention, the thimble 14 is respectively connected to the movable seat 5 and the die holder 15 in a penetrating and sliding manner through a connecting through hole 16; the ejection spring 11 is matched for use, so that the ejection die is favorably used for ejecting the die.

The working principle of the utility model is as follows: when carrying out the injection molding work, accessible hydraulic pressure push rod 6 removes die holder 15 in order to connect fixed mould 2, at this moment, location inserted bar 10 can insert in location jack 3, so that fix a position the connection, and along with the removal of sliding seat 5, location inserted bar 10 can drive movable mounting plate 8 and move down and extrude powerful spring 9, so that adjust the position of thimble 14, conveniently carry out the injection molding work, after the completion of moulding plastics, reset movable seat 5, at this moment, under the elastic action of powerful spring 9, movable mounting plate 8 can shift up, and shift up thimble board 12 through ejecting spring 11 in step, utilize thimble board 12 to move up thimble 14, can realize the ejector die demolding work, this setting has avoided artifical demolding, the work efficiency of demolding is improved.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides an ejector plate buffer gear that resets for injection mold, includes fixed bolster (1), its characterized in that: the injection molding machine is characterized in that a fixed mold (2) is fixedly connected to the inner side of the top end face of a fixed support (1), an injection molding channel (4) is formed in the inner side of the fixed mold (2), a movable seat (5) is arranged on the inner side of the bottom end face of the fixed support (1), a hydraulic push rod (6) is fixedly connected to the bottom end face of the fixed support (1), one end of the hydraulic push rod (6) penetrates through the bottom end face of the fixed support (1) and is fixedly connected to the movable seat (5), an installation bin (7) is formed in the inner side of the movable seat (5), a movable installation plate (8) is arranged on the inner side of the installation bin (7), a strong spring (9) is fixedly connected to the bottom of the movable installation plate (8), the other end of the strong spring (9) is fixedly connected to the movable seat (5), and a positioning insertion rod (10) is fixedly connected to the top of the movable installation plate (8), the outside of location inserted bar (10) has cup jointed ejection spring (11), just the one end fixed connection of ejection spring (11) is in movable mounting board (8), the other end fixedly connected with thimble board (12) of ejection spring (11), one side fixedly connected with die holder (15) of sliding seat (5), connect the through-hole (16) have all been seted up to the inboard of inboard and die holder (15) of sliding seat (5).

2. The ejector plate return buffer mechanism for the injection mold according to claim 1, characterized in that: the inner side of the fixed die (2) is provided with a positioning insertion hole (3), and the aperture size of the positioning insertion hole (3) is matched with the rod diameter size of the positioning insertion rod (10).

3. The ejector plate return buffer mechanism for the injection mold according to claim 1, characterized in that: the bottom end face of the ejector pin plate (12) is fixedly connected with a protection base (13), and the protection base (13) is made of a flexible structure.

4. The ejector plate return buffer mechanism for the injection mold according to claim 1, characterized in that: the top of the ejector plate (12) is fixedly connected with ejector pins (14), and the number of the ejector pins (14) is multiple.

5. The ejector plate return buffer mechanism for the injection mold according to claim 1, characterized in that: the size structure of location inserted bar (10) and the size structure phase-match of connect the through-hole (16), just location inserted bar (10) run through sliding connection in sliding seat (5) through connect the through-hole (16).

6. The ejector plate return buffer mechanism for the injection mold according to claim 4, characterized in that: the ejector pins (14) are respectively connected with the movable seat (5) and the die holder (15) in a penetrating and sliding manner through the connecting through holes (16).