CN216182285U

CN216182285U - Injection mold bullet stub bar mechanism

Info

Publication number: CN216182285U
Application number: CN202122223856.3U
Authority: CN
Inventors: 阮超
Original assignee: Kunshan Dingyuan Electronic Technology Co ltd
Current assignee: Kunshan Dingyuan Electronic Technology Co ltd
Priority date: 2021-09-14
Filing date: 2021-09-14
Publication date: 2022-04-05
Anticipated expiration: 2031-09-14

Abstract

The utility model discloses a material ejection head mechanism of an injection mould, which comprises a workbench, wherein a plurality of support columns are fixedly connected to the bottom end surface of the workbench, a lower die holder is fixedly embedded in the middle of the upper end surface of the workbench, a lifting plate is arranged above the workbench, an injection cylinder is fixedly embedded in the middle of the upper end surface of the lifting plate, a fixing plate is arranged between the lifting plate and the workbench, when the mould is closed, a pressure rod is extruded by the lower die holder, the pressure rod drives a first piston to move upwards, the first piston pushes a second piston to move towards the material ejection head through oil when moving upwards, so that the material ejection head retracts into a first chute, when the mould is opened, the pressure rod is separated from the lower die holder, the second piston moves away from the material ejection head under the action of a second spring, a pushing block moves towards the outer side of a pushing groove, and then under the action of the first spring, the material ejection head ejects out of the first chute, thereby avoid the finished product adhesion of moulding plastics on the upper die base, the personnel of being convenient for are manual or the manipulator is got the material.

Description

Injection mold bullet stub bar mechanism

Technical Field

The utility model relates to the technical field of injection molds, in particular to a material ejection head mechanism of an injection mold.

Background

The injection mold is a tool for producing plastic products and also a tool for endowing the plastic products with complete structures and accurate dimensions, and the injection molding is a processing method used for batch production of parts with complex shapes, in particular to a method for injecting heated and melted plastics into a mold cavity from an injection molding machine at high pressure and obtaining a formed product after cooling and solidification.

When an existing injection mold is used for demolding, a finished product is easy to adhere to an upper mold base, so that manual or mechanical arm material taking is inconvenient for personnel, and therefore the injection mold material ejecting head mechanism is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a material ejection head mechanism of an injection mould, which aims to solve the problems in the background technology.

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

a material ejecting head mechanism of an injection mould comprises a workbench, wherein a plurality of supporting columns are fixedly connected to the bottom end surface of the workbench, a lower die holder is fixedly embedded in the middle of the upper end surface of the workbench, a lifting plate is arranged above the workbench, an injection molding barrel is fixedly embedded in the middle of the upper end surface of the lifting plate, a limiting plate is sleeved on the outer surface of the middle lower part of the injection molding barrel, the limiting plate is in bolted connection with the bottom end surface of the lifting plate, a fixing plate is arranged between the lifting plate and the workbench, a pressing plate is fixedly embedded in the middle of the upper end surface of the fixing plate, the bottom end surface of the pressing plate is in bolted connection with an upper die holder, locking bolts penetrate through the upper die holder, the fixing plate and the lifting plate, a plastic injection molding cavity is formed between the lower die holder and the upper die holder, first sliding grooves are formed in the left side and the right side of the upper end surface of the upper die holder, and material ejecting heads are slidably connected inside the first sliding grooves, the outer surface cover of bullet stub bar is equipped with first spring, the second spout has all been seted up on the bottom face left and right sides of upper die base, communicating third spout has been seted up between second spout and the spout, the inside sliding connection of second spout has first piston, the bottom face fixedly connected with depression bar of first piston, the inside sliding connection of third spout has the second piston, the inside wall one side fixedly connected with second spring of second piston and third spout, the surface one side of bullet stub bar has been seted up and has been promoted the groove, the inside in promotion groove is provided with promotes the piece, promote fixedly connected with dead lever between piece and the second piston, it has oil to fill between first piston and the second piston.

Preferably, the inside of the second sliding groove is fixedly connected with a first limiting ring, and the inside of the third sliding groove is fixedly connected with a second limiting ring.

Preferably, the bottom end face of the fixed plate is integrally connected with a plurality of inserting columns, the upper end face of the workbench is provided with positioning slots corresponding to the inserting columns, and the inserting columns are inserted into the positioning slots.

Preferably, be provided with the brace table under the workstation, the up end fixed mounting of brace table has the liftout cylinder, the output fixedly connected with ejector plate of liftout cylinder, a plurality of liftout poles are worn to be equipped with in the bottom face of workstation slip, the inside in injection plastics chamber is stretched into on the top of ejector rod, and the top fixedly connected with ejector block of ejector rod, the bottom of ejector rod and the up end fixed connection of ejector plate.

Preferably, a rubber pad is arranged on the bottom end face of the supporting column.

Preferably, the upper end surface of the lifting plate is connected with a lifting cylinder.

Compared with the prior art, the utility model has the beneficial effects that: the injection mold is convenient to use and simple to operate, when the mold is closed, the pressure rod is extruded by the lower mold base, the pressure rod drives the first piston to move upwards, the first piston pushes the second piston to move towards the direction of the elastic head through oil when moving upwards, the second spring is stretched at the moment, the second piston drives the pushing block to move towards the inside of the pushing groove through the fixed rod, in the process of extending into the pushing groove, the elastic head can be driven to move upwards due to the inclined surface arranged on the contact surface of the pushing groove and the pushing block, the elastic head retracts into the first sliding groove, the first spring is compressed at the moment, when the mold is opened, the pressure rod is separated from the lower mold base, the second piston moves towards the direction away from the elastic head under the action of the second spring, the first piston moves downwards, the pushing block moves towards the outer side of the pushing groove, and the elastic head ejects out of the first sliding groove under the action of the first spring, so that the injection molding adhesion of a finished product on the upper mold base is avoided, the material taking is convenient for personnel to take materials manually or by a mechanical arm; when the mold is closed, the inserted column is inserted into the positioning slot, so that the accuracy of mold closing can be improved; when the mold is opened, the material pushing cylinder is started simultaneously, the material pushing cylinder drives the material ejecting rod and the material ejecting block to move downwards, and the injection molding finished product is pushed out of the molding material cavity, so that the material can be taken conveniently.

Drawings

FIG. 1 is a schematic sectional elevation view of a main structure of a material ejection head mechanism of an injection mold;

fig. 2 is an enlarged view of a structure a in fig. 1 of a head ejection mechanism of an injection mold.

In the figure: 1-a workbench, 2-a fixing plate, 3-a lifting plate, 4-a material ejection head, 5-a pressing plate, 6-an injection molding barrel, 7-a limiting plate, 8-an insertion column, 9-a positioning slot, 10-an ejection rod, 11-an ejection plate, 12-an ejection cylinder, 13-a support column, 14-a plastic injection cavity, 15-a lower die holder, 16-a first spring, 17-a pushing block, 18-a first chute, 19-a second piston, 20-a third chute, 21-a second spring, 22-a second chute, 23-a first limiting ring, 24-a pressing rod, 25-an ejection block, 26-a second limiting ring, 27-a pushing groove, 28-an upper die holder and 29-a first chute.

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: a material ejecting head mechanism of an injection mold comprises a workbench 1, wherein a plurality of supporting columns 13 are fixedly connected to the bottom end face of the workbench 1, a lower mold base 15 is fixedly embedded in the middle of the upper end face of the workbench 1, a lifting plate 3 is arranged above the workbench 1, an injection molding barrel 6 is fixedly embedded in the middle of the upper end face of the lifting plate 3, a limiting plate 7 is sleeved on the outer surface of the middle lower portion of the injection molding barrel 6, the limiting plate 7 is in bolted connection with the bottom end face of the lifting plate 3, a fixing plate 2 is arranged between the lifting plate 3 and the workbench 1, a pressing plate 5 is fixedly embedded in the middle of the upper end face of the fixing plate 2, an upper mold base 28 is in bolted connection with the bottom end face of the pressing plate 5, locking bolts penetrate through bolts among the upper mold base 28, the fixing plate 2 and the lifting plate 3, an injection molding cavity 14 is formed between the lower mold base 15 and the upper mold base 28, first sliding grooves 18 are formed in the left side and the right side of the upper end face of the upper mold base 28, the inside of the first chute 18 is connected with a material ejecting head 4 in a sliding way, the outer surface of the material ejecting head 4 is sleeved with a first spring 16, the left side and the right side of the bottom end surface of the upper die holder 28 are both provided with a second sliding chute 22, a third sliding chute 20 communicated with the second sliding chute 22 and a sliding chute 18, a first piston 29 is connected inside the second sliding chute 22 in a sliding manner, a pressure rod 24 is fixedly connected with the bottom end surface of the first piston 29, a second piston 19 is connected inside the third chute 20 in a sliding manner, a second spring 21 is fixedly connected on one side of the inner side wall of the second piston 19 and the third chute 20, a pushing groove 27 is arranged on one side of the outer surface of the material ejecting head 4, a pushing block 17 is arranged in the pushing groove 27, a fixing rod is fixedly connected between the pushing block 17 and the second piston 19, and oil is filled between the first piston 29 and the second piston 19.

When the die is closed, the press rod 24 is extruded by the lower die holder 15, the press rod 24 drives the first piston 29 to move upwards, the first piston 29 moves upwards, the second piston 19 is pushed by oil to move towards the direction of the bullet head 4, the second spring 21 is stretched at the moment, the second piston 19 drives the pushing block 17 to move towards the inside of the pushing groove 27 through the fixing rod, in the process of extending towards the inside of the pushing groove 27, the contact surface of the pushing groove 27 and the pushing block 17 is provided with an inclined surface, so that the bullet head 4 can be driven to move upwards, the bullet head 4 retracts into the first chute 18, the first spring 16 is compressed at the moment, when the die is opened, the press rod 24 is separated from the lower die holder 15, the second piston 19 moves towards the direction far away from the bullet head 4 under the action of the second spring 20, the first piston 29 moves downwards, the pushing block 17 moves towards the outer side of the pushing groove 27, and the bullet head 4 pops out of the first chute 18 under the action of the first spring 16, thereby avoiding the finished injection molding product from being adhered to the upper die base 28, and facilitating the manual or mechanical fetching of the material by personnel.

A first limiting ring 23 is fixedly connected to the inside of the second sliding groove 22, and a second limiting ring 26 is fixedly connected to the inside of the third sliding groove 20.

The first stop collar 23 and the second stop collar 26 prevent the piston from disengaging.

The bottom end face of the fixed plate 2 is integrally connected with a plurality of inserting columns 8, the upper end face of the workbench 1 is provided with positioning slots 9 corresponding to the inserting columns 8, and the inserting columns 8 are inserted into the positioning slots 9.

The insert pin 8 is inserted into the positioning slot 9 during mold clamping, so that the mold clamping accuracy can be improved.

Be provided with the brace table under workstation 1, the up end fixed mounting of brace table has liftout cylinder 12, the output fixedly connected with ejector pad 11 of liftout cylinder 12, a plurality of liftout poles 10 are worn to be equipped with in the bottom face of workstation 1 slides, the inside of notes plastics chamber 14 is stretched into on the top of liftout pole 10, and the top fixedly connected with ejector pad 25 of liftout pole 10, the bottom of liftout pole 10 and the up end fixed connection of ejector pad 10.

When the mold is opened, the material pushing cylinder 12 is started simultaneously, the material pushing cylinder 12 drives the material pushing rod 10 and the material pushing block 25 to move downwards, and the injection molding finished product is pushed out of the molding material cavity 14, so that the convenience in material taking is increased.

The bottom end face of the support column 13 is provided with a rubber pad, so that the injection molding device can be placed more stably through the rubber pad.

The up end of lifter plate 3 is connected with the lift cylinder, can drive lifter plate 3 and fixed plate 2 through the lift cylinder and reciprocate, and then realizes the die sinking or compound die operation.

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 injection mold bullet stub bar mechanism, includes workstation (1), its characterized in that: the bottom end face of the workbench (1) is fixedly connected with a plurality of supporting columns (13), the middle of the upper end face of the workbench (1) is fixedly embedded with a lower die holder (15), a lifting plate (3) is arranged above the workbench (1), the middle of the upper end face of the lifting plate (3) is fixedly embedded with an injection molding barrel (6), a limiting plate (7) is sleeved on the outer surface of the middle lower part of the injection molding barrel (6), the limiting plate (7) is in bolted connection with the bottom end face of the lifting plate (3), a fixing plate (2) is arranged between the lifting plate (3) and the workbench (1), a pressing plate (5) is fixedly embedded in the middle of the upper end face of the fixing plate (2), the bottom end face of the pressing plate (5) is in bolted connection with an upper die holder (28), locking bolts are arranged between the upper die holder (28), the fixing plate (2) and the lifting plate (3) in a penetrating manner, and an injection molding cavity (14) is formed between the lower die holder (15) and the upper die holder (28), the left side and the right side of the upper end face of the upper die base (28) are both provided with a first chute (18), the inside of the first chute (18) is connected with an elastic head (4) in a sliding manner, the outer surface of the elastic head (4) is sleeved with a first spring (16), the left side and the right side of the bottom end face of the upper die base (28) are both provided with a second chute (22), a communicated third chute (20) is arranged between the second chute (22) and the first chute (18), the inside of the second chute (22) is connected with a first piston (29) in a sliding manner, the bottom end face of the first piston (29) is fixedly connected with a pressure lever (24), the inside of the third chute (20) is connected with a second piston (19) in a sliding manner, one side of the inner side wall of the second piston (19) and the third chute (20) is fixedly connected with a second spring (21), one side of the outer surface of the elastic head (4) is provided with a pushing groove (27), the oil-filled type oil pump is characterized in that a pushing block (17) is arranged in the pushing groove (27), a fixing rod is fixedly connected between the pushing block (17) and the second piston (19), and oil is filled between the first piston (29) and the second piston (19).

2. The injection mold slug mechanism of claim 1 further characterized by: the inside fixedly connected with first spacing ring (23) of second spout (22), the inside fixedly connected with second spacing ring (26) of third spout (20).

3. The injection mold slug mechanism of claim 2 further characterized by: the bottom end face of the fixed plate (2) is integrally connected with a plurality of inserting columns (8), the upper end face of the workbench (1) is provided with positioning slots (9) corresponding to the inserting columns (8), and the inserting columns (8) are inserted in the positioning slots (9).

4. The injection mold slug mechanism of claim 3 further characterized by: be provided with the brace table under workstation (1), the up end fixed mounting of brace table has liftout cylinder (12), the output fixedly connected with ejector pad (11) of liftout cylinder (12), the bottom face of workstation (1) slides and wears to be equipped with a plurality of liftout poles (10), the inside of annotating plastics chamber (14) is stretched into on the top of liftout pole (10), and the top fixedly connected with ejector pad (25) of liftout pole (10), the bottom of liftout pole (10) and the up end fixed connection of ejector pad (11).

5. The injection mold slug mechanism of claim 4 further characterized by: and a rubber pad is arranged on the bottom end surface of the supporting column (13).

6. The injection mold slug mechanism of claim 5 further characterized by: the upper end face of the lifting plate (3) is connected with a lifting cylinder.