CN218906179U

CN218906179U - Core pulling device for injection molding mechanism

Info

Publication number: CN218906179U
Application number: CN202223128873.XU
Authority: CN
Inventors: 胡永标
Original assignee: Kunshan Jiayoujie Mould Technology Co ltd
Current assignee: Kunshan Jiayoujie Mould Technology Co ltd
Priority date: 2022-11-24
Filing date: 2022-11-24
Publication date: 2023-04-25
Anticipated expiration: 2032-11-24

Abstract

The utility model discloses a core pulling device for an injection molding mechanism, which comprises a bottom plate, wherein a side plate, a movable block I, an upper cover plate, a fixed block, a movable block II and a bottom support are arranged at the top of one side of the bottom plate, a molding cavity is formed at the middle positions of the side plate, the movable block I, the upper cover plate, the fixed block, the movable block II and the bottom support, a core pulling mechanism is arranged at the other side of the top of the bottom plate and is used for driving a molding rod to rotate, after an injection molding process is completed on a bent pipe fitting, a first cylinder and a second cylinder are started to enable the molding cavity to be in an open state, a motor is started at the moment, and the motor drives a driving wheel to rotate so that the whole core pulling mechanism rotates along a rack, and the annular part of the molding rod rotates out of the inside of the workpiece, so that the core pulling process is rapidly completed.

Description

Core pulling device for injection molding mechanism

Technical Field

The utility model relates to the technical field of mold processing, in particular to a core pulling device for an injection molding mechanism.

Background

In injection molding, a power core pulling device is often additionally arranged in a die to accelerate the injection molding efficiency and improve the quality of a workpiece.

The utility model patent with the patent publication number of CN105382235A discloses a core pulling mechanism which is arranged on a movable die and a fixed die of a die casting machine, a core is arranged between the movable die and the fixed die, a conical die sleeve is arranged in the movable die, the core is positioned in the conical die sleeve, a plurality of sliding blocks which can be spliced are arranged between the core and the conical die sleeve, a protrusion capable of pulling out a lateral hole is arranged on the inner side surface of the sliding block side, and a casting cavity is formed by enclosing the fixed die, the core and the sliding block; each sliding block is hinged with an independent linkage rod, the linkage rods are tightly attached to the inside of a conical die sleeve, all the linkage rods are movably connected with a movable push plate arranged on a movable die, the plurality of linkage rods are controlled by the push plate, consistency of the sliding blocks when the sliding blocks are used for drawing lateral holes can be guaranteed, synchronous lateral core pulling of castings is achieved, only one power source is arranged, and therefore energy is saved for the whole part, but the device is high in core pulling difficulty when aiming at pipe parts, particularly bent pipe parts, and the pipe structure is easy to damage when the pipe is pulled.

Disclosure of Invention

The utility model aims to provide a core pulling device for an injection molding mechanism, which solves the following technical problems:

(1) How to realize the quick core pulling of the bent pipe fitting;

(2) And in the core pulling process, the damage to the structure of the bent pipe fitting is avoided.

The aim of the utility model can be achieved by the following technical scheme:

the utility model provides a loose core device for injection moulding mechanism, includes the bottom plate, one side top of bottom plate is provided with curb plate, movable block one, upper cover plate, fixed block, movable block two, bottom surface support, curb plate, movable block one, upper cover plate, fixed block, movable block two, bottom surface support's intermediate position constitutes the shaping die cavity, loose core mechanism is installed to the top opposite side of bottom plate, and loose core mechanism is used for driving the shaping pole rotation, can accomplish the process of loosing core after the processing of moulding plastics.

The core pulling mechanism comprises a movable plate, the bottom of the movable plate is in sliding connection with the top of a bottom plate, a motor is fixedly arranged at the top of the movable plate, a driving wheel is fixedly arranged on an output shaft of the motor, a base is slidably connected to the middle position of the top of the bottom plate, a limiting block is arranged at the middle position of the bottom of the base, a mounting block is fixedly arranged on one side of the top of the base, and a forming rod is fixedly arranged on one side of the mounting block.

The top of bottom plate has seted up spacing groove and mounting groove respectively, mounting groove internally mounted has the rack, rack and drive wheel looks adaptation, the stopper joint is in the spacing groove.

One side of the forming rod, which is close to the upper cover plate, is annularly arranged, and the forming rod, the limiting groove and the mounting groove are concentrically arranged.

The top of base keeps away from one side fixed mounting of installation piece has the fly leaf, fixed block fixed mounting is kept away from the one side of core pulling mechanism at the top of bottom plate.

One side terminal surface fixed mounting of bottom plate has the mounting bracket, fixed mounting has the cylinder one on the mounting bracket, the piston rod of cylinder one and one side looks joint of movable block one, one side terminal surface fixed mounting that the mounting bracket was kept away from to the bottom plate has the cylinder two, the piston rod of cylinder two and one side looks joint of movable block two, sliding connection between movable block one and movable block two and the top of bottom plate.

The utility model has the beneficial effects that:

1. after the bent pipe piece is cooled in the injection molding process, the first cylinder and the second cylinder are started to enable the molding cavity to be in an open state, at the moment, the motor is started to drive the driving wheel to rotate, so that the whole core pulling mechanism rotates along the rack, the annular part of the molding rod is screwed out of the workpiece, the core pulling process is completed rapidly, the core pulling process can be completed only by controlling the rotation mode of the molding rod, the processing process is simple and rapid, and the production efficiency is improved;

2. meanwhile, a rotary core pulling mode is adopted, so that damage to the pipe caused by shaking the forming rod in the previous core pulling process is reduced.

Drawings

The utility model is further described below with reference to the accompanying drawings.

FIG. 1 is a schematic view of the overall structure of the present utility model;

FIG. 2 is a schematic diagram of the core pulling mechanism of the present utility model;

FIG. 3 is a top view of the core pulling mechanism of the present utility model.

In the figure: 1. a bottom plate; 2. a base; 3. a core pulling mechanism; 301. a motor; 302. a driving wheel; 303. forming a rod; 304. a movable plate; 305. a mounting block; 306. a limiting block; 4. a side plate; 5. a mounting frame; 6. a first cylinder; 7. a movable block I; 8. an upper cover plate; 9. a fixed block; 10. a second movable block; 11. a second cylinder; 12. a limit groove; 13. a mounting groove; 14. a rack; 15. and a bottom surface support.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, the utility model discloses a core pulling device for an injection molding mechanism, which comprises a bottom plate 1, wherein a side plate 4, a first movable block 7, an upper cover plate 8, a fixed block 9, a second movable block 10 and a bottom support 15 are arranged at the top of one side of the bottom plate 1, the middle positions of the side plate 4, the first movable block 7, the upper cover plate 8, the fixed block 9, the second movable block 10 and the bottom support 15 form a molding cavity, a core pulling mechanism 3 is arranged at the other side of the top of the bottom plate 1, and the core pulling mechanism 3 is used for driving a molding rod 303 to rotate, so that the core pulling process after injection molding can be completed.

The core pulling mechanism 3 comprises a movable plate 304, the bottom of the movable plate 304 is in sliding connection with the top of the bottom plate 1, a motor 301 is fixedly arranged at the top of the movable plate 304, a driving wheel 302 is fixedly arranged on an output shaft of the motor 301, a base 2 is slidably connected at the middle position of the top of the bottom plate 1, a limiting block 306 is arranged at the middle position of the bottom of the base 2, a mounting block 305 is fixedly arranged at one side of the top of the base 2, and a forming rod 303 is fixedly arranged at one side of the mounting block 305.

The top of the bottom plate 1 is respectively provided with a limit groove 12 and a mounting groove 13, a rack 14 is mounted in the mounting groove 13, the rack 14 is matched with the driving wheel 302, and the limit block 306 is clamped in the limit groove 12.

The forming rod 303 is annularly arranged on one side close to the upper cover plate 8, and the forming rod 303, the limiting groove 12 and the mounting groove 13 are concentrically arranged.

The movable plate 304 is fixedly arranged on one side, far away from the mounting block 305, of the top of the base 2, and the fixed block 9 is fixedly arranged on one side, far away from the core pulling mechanism 3, of the top of the bottom plate 1.

In actual use, after the pipe bending piece completes the injection molding process, after the workpiece is cooled, the first cylinder 6 and the second cylinder 11 are started to enable the molding cavity to be in an open state, at this time, the motor 301 is started, the motor 301 drives the driving wheel 302 to rotate, so that the core pulling mechanism 3 integrally rotates along the rack 14, the annular part of the molding rod 303 is rotated out of the inside of the workpiece, and the core pulling process is rapidly completed.

The mounting frame 5 is fixedly mounted on one side end face of the bottom plate 1, the first air cylinder 6 is fixedly mounted on the mounting frame 5, a piston rod of the first air cylinder 6 is clamped with one side of the first movable block 7, the second air cylinder 11 is fixedly mounted on one side end face of the bottom plate 1 far away from the mounting frame 5, a piston rod of the second air cylinder 11 is clamped with one side of the second movable block 10, the first movable block 7, the second movable block 10 and the top of the bottom plate 1 are in sliding connection, and the first movable block 7 and the second movable block 10 are driven to move by controlling the opening and closing of the first air cylinder 6 and the second air cylinder 11 so as to achieve the closing effect of a forming cavity.

The specific using method of the device is as follows:

in injection molding, the first cylinder 6 and the second cylinder 11 are controlled so that the middle positions of the side plate 4, the first movable block 7, the upper cover plate 8, the fixed block 9, the second movable block 10 and the bottom support 15 form a closed molding cavity, and the molding rod 303 is arranged in the closed space; when injection molding is completed, the motor 301 is started, the motor 301 drives the driving wheel 302 to rotate, the driving wheel 302 rotates along an arc track in the rack 14, the core pulling mechanism 3 integrally rotates along the rack 14 under the driving of the driving wheel 302, the annular part of the forming rod 303 is screwed out from the inside of the workpiece and is rotated away from the forming cavity from the side plate 4, and the demolding process of the central position of the pipeline is completed.

In the description of the present utility model, it should be understood that the terms "upper," "lower," "left," "right," and the like indicate an orientation or a positional relationship based on that shown in the drawings, and are merely for convenience of description and for simplifying the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, as well as a specific orientation configuration and operation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

The foregoing describes one embodiment of the present utility model in detail, but the description is only a preferred embodiment of the present utility model and should not be construed as limiting the scope of the utility model. All equivalent changes and modifications within the scope of the present utility model are intended to be covered by the present utility model.

Claims

1. The utility model provides a core pulling device for injection moulding mechanism, includes bottom plate (1), one side top of bottom plate (1) is provided with curb plate (4), movable block one (7), upper cover plate (8), fixed block (9), movable block two (10), bottom surface support (15), the intermediate position of curb plate (4), movable block one (7), upper cover plate (8), fixed block (9), movable block two (10), bottom surface support (15) constitutes the shaping die cavity, a serial communication port, core pulling mechanism (3) are installed to the top opposite side of bottom plate (1), and core pulling mechanism (3) include motor (301), and motor (301) work drives shaping pole (303) rotatory completion core pulling work.

2. The core pulling device for an injection molding mechanism according to claim 1, wherein the core pulling mechanism (3) comprises a movable plate (304), the bottom of the movable plate (304) is slidably connected with the top of a base plate (1), a motor (301) is fixedly installed at the top of the movable plate (304), a driving wheel (302) is fixedly installed on an output shaft of the motor (301), a base (2) is slidably connected at the middle position of the top of the base plate (1), a limiting block (306) is installed at the middle position of the bottom of the base (2), a mounting block (305) is fixedly installed at one side of the top of the base (2), and a molding rod (303) is fixedly installed at one side of the mounting block (305).

3. The core pulling device for the injection molding mechanism according to claim 2, wherein the top of the bottom plate (1) is provided with a limiting groove (12) and a mounting groove (13) respectively, a rack (14) is mounted in the mounting groove (13), the rack (14) is matched with the driving wheel (302), and the limiting block (306) is clamped in the limiting groove (12).

4. A core pulling device for an injection molding machine according to claim 3, wherein the molding rod (303) is disposed in a ring shape on a side close to the upper cover plate (8), and the molding rod (303), the limiting groove (12) and the mounting groove (13) are disposed concentrically.

5. The core pulling device for the injection molding mechanism according to claim 2, wherein a movable plate (304) is fixedly arranged on one side, away from the mounting block (305), of the top of the base (2), and the fixed block (9) is fixedly arranged on one side, away from the core pulling mechanism (3), of the top of the bottom plate (1).

6. The core pulling device for an injection molding mechanism according to claim 5, wherein a mounting frame (5) is fixedly mounted on one side end surface of the bottom plate (1), a first cylinder (6) is fixedly mounted on the mounting frame (5), a piston rod of the first cylinder (6) is clamped with one side of the first movable block (7), a second cylinder (11) is fixedly mounted on one side end surface of the bottom plate (1) far away from the mounting frame (5), a piston rod of the second cylinder (11) is clamped with one side of the second movable block (10), and the first movable block (7) and the second movable block (10) are in sliding connection with the top of the bottom plate (1).