CN220075429U - Core-pulling structure of precise injection mold - Google Patents

Abstract

The utility model relates to the technical field of molds and discloses a core pulling structure of a precise injection mold, which comprises a base, wherein sliding mechanisms are arranged outside a connecting rod, each sliding mechanism comprises a sliding block, a sliding groove, a placing groove, a rack, a rotating shaft, a gear and a motor, through the gear and the rack, after the mold processing is completed, an electric telescopic rod jacks up a top plate, a transmission rod is gradually separated from the inside of a transmission hole, at the moment, the motor is started to drive the rotating shaft to rotate, the rotating shaft drives the gear to rotate, at the moment, the gear is meshed with the gear teeth of the rack, the gear is rotated to drive the rack to move, the rack is moved to drive the sliding block to drive the fixed block to move, the fixed block drives the connecting rod to move, at the moment, the connecting rod pushes a second mold to gradually separate from the first mold until the second mold is completely separated from the first mold, the core pulling process is completed, at the moment, and the motor is closed, and the workpiece damage caused by the rapid separation of the second mold and the second mold is avoided.

Description

Core-pulling structure of precise injection mold

Technical Field

The utility model relates to the technical field of molds, in particular to a core pulling structure of a precision injection mold.

Background

Precision injection molding, in strict sense, refers to the dimensional precision of plastic products produced by injection molding machine equipment, which can reach below 0.01mm, and is usually an injection molding production mode with the dimension between 0.01 and 0.001mm, precision injection molding is mainly used on industrial and civil products such as aerospace, automobile parts, precision instruments, sports equipment, detection tools and the like, core pulling mechanisms are mechanisms for ensuring smooth demolding of products, in the prior art, a transmission rod is taken out from the inner cavity of a transmission hole by lifting the height of a top plate by using an electric telescopic rod, a fixed block moves leftwards under the action of a spring, the fixed block pushes a connecting rod second die to move until the right end of the second die is taken out from the inner cavity of a die cavity, core pulling can be completed, the spring is relatively large in an instant impact machine released, the second die is quickly separated from the first die, and a workpiece injection molded by the quick movement of the second die is easily damaged due to quick movement of the second die.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the utility model provides a core pulling structure of a precise injection mold, which solves the problems of the background technology.

(II) technical scheme

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a precision injection mold structure of loosing core, the on-line screen storage device comprises a base, the outside fixed mounting of base has first mould, the outside sliding connection of base has the second mould, one side fixed mounting that the second mould is close to first mould has the connecting rod, one side fixed mounting that the second mould was kept away from to the connecting rod has the fixed block, the outside of connecting rod is provided with slide mechanism, every slide mechanism is including the slider, the spout, the standing groove, the rack, the pivot, gear and motor, slider fixed mounting is close to the one side of base at the fixed block, the spout is offered and is being close to the one side of slider at the base, the standing groove is offered in the inside of base, the spout communicates with each other with the standing groove, rack sliding connection is in the inside of standing groove, one side fixed mounting that the slider kept away from the fixed block is in the outside of rack, the inside of standing groove is rotated in the rotation of gear fixed mounting, the outside of gear and rack's teeth mesh, motor fixed mounting is in the outside of base, motor output shaft runs through the base and is connected with the pivot.

Preferably, one surface of the rack, which is close to the sliding block, is fixedly provided with a long plate, one surface of the placing groove, which is close to the long plate, is provided with a long groove, and the long plate is connected in the long groove in a sliding way, so that the rack can slide conveniently.

Preferably, a limiting plate is fixedly arranged on one surface of the long plate, which is close to the sliding block, and a limiting groove is formed on one surface of the long groove, which is close to the limiting plate, and the limiting plate is slidably connected in the limiting groove, so that the long plate is prevented from being separated from the long groove.

Preferably, the clamping groove is formed in the base on one side of the placing groove, the protective cover is clamped in the clamping groove, the placing groove is convenient to cover when the situation inside the placing groove is observed, and impurities and the like are prevented from entering the placing groove.

Preferably, one surface of the protective cover, which is far away from the clamping groove, is fixedly provided with a U-shaped plate, so that the clamping connection between the protective plate and the clamping groove is conveniently released.

(III) beneficial effects

Compared with the prior art, the utility model provides a precise injection mold core-pulling structure, which has the following beneficial effects:

1. this accurate injection mold structure of loosing core through setting up at the inside gear of standing groove, the cooperation rack, finishes the back when the module processing, electric telescopic handle jack-up the roof, break away from the inside of transfer line gradually, the motor starts and drives the pivot and rotate this moment, the pivot drives the gear wheel and rotates, the gear wheel meshing of gear and rack this moment, gear wheel rotates drives the rack and removes, the rack removes and drives the slider and remove and drive the fixed block and remove, the fixed block drives the connecting rod and remove, the connecting rod promotes the second mould and makes the second mould keep away from first mould gradually this moment, until the second mould breaks away from with first mould completely, accomplish the process of loosing core, close the motor this moment, avoid the second mould to damage with the work piece that second mould quick separation leads to.

2. This accurate injection mold structure of loosing core through setting up at the inside protective cover of draw-in groove, cooperates the U template, and the fixed block removes untimely time, pulls the joint that the U template made protective cover and draw-in groove, observes the inside condition of standing groove, the inside condition of standing groove of being convenient for inspect.

Drawings

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

FIG. 2 is a schematic view of the base of FIG. 1 according to the present utility model;

FIG. 3 is an enlarged schematic view of the structure of FIG. 2A according to the present utility model;

fig. 4 is a schematic view of the structure of the rack in fig. 3 according to the present utility model.

In the figure: 1. a base; 2. a first mold; 3. a second mold; 4. a connecting rod; 5. a fixed block; 6. a slide block; 7. a chute; 8. a placement groove; 9. a rack; 10. a rotating shaft; 11. a gear; 12. a motor; 13. a long plate; 14. a long groove; 15. a limiting plate; 16. defining a slot; 17. a clamping groove; 18. a protective cover; 19. u-shaped board.

Detailed Description

The present utility model will be described in further detail below with reference to the drawings, wherein like elements are designated by like reference numerals, and it is noted that the words "front", "rear", "left", "right", "upper" and "lower", "bottom" and "top" used in the following description refer to directions in the drawings, and the words "inner" and "outer" refer to directions toward or away from, respectively, the geometric center of a particular element.

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. 1-4, the present utility model provides a technical solution: the utility model provides a precision injection mold core pulling structure, which comprises a base 1, the outside fixed mounting of base 1 has first mould 2, the outside sliding connection of base 1 has second mould 3, the one side fixed mounting that second mould 3 is close to first mould 2 has connecting rod 4, one side fixed mounting that connecting rod 4 kept away from second mould 3 has fixed block 5, the outside of connecting rod 4 is provided with slide mechanism, every slide mechanism is including slider 6, spout 7, standing groove 8, rack 9, pivot 10, gear 11 and motor 12, slider 6 fixed mounting is close to the one side of base 1 at fixed block 5, spout 7 is offered at the one side that base 1 is close to slider 6, standing groove 8 is offered in the inside of base 1, spout 7 communicates with each other with standing groove 8, rack 9 sliding connection is in the inside of standing groove 8, one side fixed block 5 is kept away from to slider 6 is fixed mounting in the outside of rack 9, the rotating shaft 10 is rotationally connected in the placing groove 8, the gear 11 is fixedly arranged outside the rotating shaft 10, the gear 11 is meshed with the gear teeth of the rack 9, the motor 12 is fixedly arranged outside the base 1, the output shaft of the motor 12 penetrates through the base 1 and is connected with the rotating shaft 10, the precise injection mold core-pulling structure is characterized in that the gear 11 arranged in the placing groove 8 is matched with the rack 9, after the module is processed, the electric telescopic rod jacks up the top plate and gradually separates the transmission rod from the transmission hole, at the moment, the motor 12 starts to drive the rotating shaft 10 to rotate, the rotating shaft 10 drives the gear 11 to rotate, at the moment, the gear 11 is meshed with the gear teeth of the rack 9, the gear 11 rotates to drive the rack 9 to move, the rack 9 moves to drive the slide block 6 to move to drive the fixed block 5 to move, the fixed block 5 drives the connecting rod 4 to move, at this time, the connecting rod 4 pushes the second die 3 to gradually separate the second die 3 from the first die 2 until the second die 3 is completely separated from the first die 2, so as to complete the core pulling process, and at this time, the motor 12 is closed, so that the workpiece damage caused by the rapid separation of the second die 3 and the second die 3 is avoided.

The long plate 13 is fixedly arranged on one surface of the rack 9, which is close to the sliding block 6, the long groove 14 is formed on one surface of the placing groove 8, which is close to the long plate 13, the long plate 13 is slidably connected inside the long groove 14, the sliding of the rack 9 is facilitated, the limiting plate 15 is fixedly arranged on one surface of the long plate 13, which is close to the sliding block 6, the limiting groove 16 is formed on one surface of the long groove 14, which is close to the limiting plate 15, the limiting plate 15 is slidably connected inside the limiting groove 16, the long plate 13 and the long groove 14 are prevented from being separated, the clamping groove 17 is formed on one surface of the base 1, which is close to the placing groove 8, the protective cover 18 is clamped inside the clamping groove 17, the protective cover 18 is U-shaped, the placing groove 8 is conveniently covered, impurities and the like are prevented from entering the inside the placing groove 8, the U-shaped plate 19 is fixedly arranged on one surface of the protective cover 18, which is far away from the clamping groove 17, the clamping connection of the protective plate and the clamping groove 17 is conveniently released, the protective cover 18 arranged inside the clamping groove 17 is matched with the U19, the protective cover 5 is prevented from moving, and the protective cover 18 is pulled to enable the situation inside the placing groove 8 to be conveniently observed, and the placing groove 8 is conveniently observed.

Working principle: when in use, through setting up the gear 11 in the standing groove 8, the cooperation rack 9, after the module processing finishes, electric telescopic handle jack-up the roof, break away from the inside of transfer line gradually with the transfer line, this moment motor 12 starts to drive pivot 10 and rotates, pivot 10 drives gear 11 and rotates, gear 11 and the tooth meshing of rack 9 this moment, gear 11 rotates and drives rack 9 and remove, rack 9 removes and drives slider 6 and remove and drive fixed block 5, fixed block 5 drives connecting rod 4 and removes, connecting rod 4 promotes second mould 3 and makes second mould 3 keep away from first mould 2 gradually this moment, until second mould 3 breaks away from with first mould 2 completely, accomplish the process of loosing core, close motor 12 this moment.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The utility model provides a precision injection mold structure of loosing core, includes base (1), and the outside fixed mounting of base (1) has first mould (2), and the outside sliding connection of base (1) has second mould (3), and one side fixed mounting that second mould (3) are close to first mould (2) has connecting rod (4), and one side fixed mounting that second mould (3) were kept away from to connecting rod (4) has fixed block (5), its characterized in that: the outside of connecting rod (4) is provided with slide mechanism, every slide mechanism is including slider (6), spout (7), standing groove (8), rack (9), pivot (10), gear (11) and motor (12), slider (6) fixed mounting is close to the one side of base (1) at fixed block (5), the one side that is close to slider (6) at base (1) is seted up in spout (7), the inside at base (1) is seted up in standing groove (8), spout (7) communicate with each other with standing groove (8), rack (9) sliding connection is in the inside of standing groove (8), the one side fixed mounting of slider (6) keep away from fixed block (5) is in the outside of rack (9), the inside at standing groove (8) is rotated in pivot (10), gear (11) fixed mounting is in the outside of pivot (10), gear (11) and the tooth meshing of rack (9), motor (12) fixed mounting is in the outside of base (1), the output shaft of motor (12) runs through base (1) and is connected with pivot (10).

2. The precise injection mold core pulling structure according to claim 1, wherein: one surface of the rack (9) close to the sliding block (6) is fixedly provided with a long plate (13), one surface of the placing groove (8) close to the long plate (13) is provided with a long groove (14), and the long plate (13) is connected inside the long groove (14) in a sliding mode.

3. The precise injection mold core pulling structure according to claim 2, wherein: one surface of the long plate (13) close to the sliding block (6) is fixedly provided with a limiting plate (15), one surface of the long groove (14) close to the limiting plate (15) is provided with a limiting groove (16), and the limiting plate (15) is slidably connected inside the limiting groove (16).

4. The precise injection mold core pulling structure according to claim 1, wherein: the base (1) is provided with a clamping groove (17) on one surface close to the placing groove (8), and a protective cover (18) is clamped in the clamping groove (17).

5. The precise injection mold core pulling structure according to claim 4, wherein: one surface of the protective cover (18) far away from the clamping groove (17) is fixedly provided with a U-shaped plate (19).