CN219311896U

CN219311896U - Liftable injection mold for injection molding machine

Info

Publication number: CN219311896U
Application number: CN202320414862.3U
Authority: CN
Inventors: 易振锋; 李会娟; 易重林
Original assignee: Kunshan Guiyan Precision Mould Co ltd
Current assignee: Kunshan Guiyan Precision Mould Co ltd
Priority date: 2023-03-08
Filing date: 2023-03-08
Publication date: 2023-07-07
Anticipated expiration: 2033-03-08

Abstract

The utility model relates to a liftable injection mold for an injection molding machine, which comprises a U-shaped plate, wherein an upper pressing mold mechanism is arranged on the outer side of the U-shaped plate, a lower top mold mechanism is arranged on the outer side of the U-shaped plate and below the upper pressing mold mechanism, a fixed plate is fixedly connected between the inner walls of the U-shaped plate, a material guide mechanism is arranged on the outer side of the fixed plate, and a material removing mechanism is also arranged on the inner side of the U-shaped plate; the stripping mechanism comprises a piston cylinder, and two piston cylinders are fixedly connected to the bottom of the inner wall of the U-shaped plate. The utility model has the advantages that the workpiece in the separated state of the upper die and the lower die can be adsorbed by arranging the air guide hole and released when the next station is opened, so that the injection molding operation can be smoothly and continuously carried out, and the piston plate can provide power for the air guide pipe under the transmission of the movable rod by arranging the piston cylinder, so that no additional driving is needed, the driving cost is saved, and the utility model has novel structure and smooth operation.

Description

Liftable injection mold for injection molding machine

Technical Field

The utility model relates to the technical field of injection molds, in particular to a liftable injection mold for an injection molding machine.

Background

The injection molding is a method for manufacturing industrial products, a workpiece is usually subjected to rubber injection molding and plastic injection molding, the injection molding can be divided into injection molding and die casting molding, an injection molding machine is main molding equipment for manufacturing plastic products with various shapes through plastic molding dies by using thermoplastic or thermosetting materials, and in the production process of the automobile electrical appliance shell, the injection molding is carried out after the dies of the corresponding shells are combined, and the material removal after cooling molding can be realized.

In the prior art, the injection molding machine often adopts the ejector rod to push the cooled shell to drop after injection molding, so that the continuous execution of the injection molding process of the injection molding machine is realized, the demolding is not needed to be carried out manually by manpower, and the problem of low working efficiency of manual blanking is solved.

In the prior art, the workpiece is jacked by the ejector rod, so that holes for arranging the ejector rod are additionally formed, hole position marks exist on the outer side of the formed workpiece, the workpiece is cooled to a certain hardness for external force ejection, deformation is not caused, the working efficiency is further reduced, and the forming quality is influenced; in addition, the mode of ejector rod sizing generally needs to additionally set up the drive, has increased the implementation cost of moulding plastics, is unfavorable for practical application.

Disclosure of Invention

In view of the foregoing problems of the prior art, a primary object of the present utility model is to provide a liftable injection mold for an injection molding machine.

The technical scheme of the utility model is as follows: the liftable injection mold comprises a U-shaped plate, wherein an upper pressing mold mechanism is arranged on the outer side of the U-shaped plate, a lower top mold mechanism is arranged on the outer side of the U-shaped plate and below the upper pressing mold mechanism, a fixed plate is fixedly connected between the inner walls of the U-shaped plate, a material guide mechanism is arranged on the outer side of the fixed plate, and a material removing mechanism is also arranged on the inner side of the U-shaped plate; the material removing mechanism comprises a piston cylinder, two piston cylinders are fixedly connected to the bottom of the inner wall of the U-shaped plate, a piston plate is slidably connected between the inner walls of the piston cylinders, an air duct is fixedly connected to the bottom of one side of the piston plate, the air duct is arranged into a hose, and a movable rod is fixedly connected to the top of the piston plate.

As a preferred implementation mode, go up moulding-die mechanism and include hydraulic cylinder, hydraulic cylinder's output extends to the inboard of U template and fixedly connected with fly leaf, the bottom fixedly connected with of fly leaf goes up the mould, the inside of going up the mould is provided with the air vent, the one end of air vent extends to the below of last mould, the other end and the one end fixed connection that the piston cylinder was kept away from to the air vent, the top of movable rod all is with the bottom fixed connection of fly leaf.

As a preferred implementation mode, lower top die mechanism includes the guide bar, the bottom fixedly connected with of U template inner wall two guide bars, two the equal sliding connection in outside of guide bar has the direction slider, fixedly connected with bed die between the one side that the direction slider is close to mutually, the outside of guide bar just is located the below cover of bed die and is equipped with the spring, the bottom of U template inner wall just is located the fixedly connected with supporting seat under the bed die.

As a preferred implementation mode, the guide mechanism comprises a guide plate, the outer side of the fixed plate is rotationally connected with the guide plate through a torsion spring, the bottom of the movable plate is fixedly connected with two top plates, the bottom of the top plates is rotationally connected with rollers, the outer sides of the rollers are contacted with the outer sides of the guide plate, the bottom of the inner side of the U-shaped plate is provided with a stripper plate, and the outer side of the stripper plate is fixedly connected with a handle.

As a preferred embodiment, a breather valve is fixedly installed on the outer side of the upper die, and the inside of the breather valve input pipe is communicated with the inside of the air duct.

As a preferred embodiment, an injection tube is provided outside the upper mold, and one end of the injection tube extends to the bottom of the upper mold.

As a preferable implementation mode, a control panel is fixedly arranged on the outer side of the U-shaped plate, and an electromagnetic valve outside the hydraulic oil cylinder is electrically connected with the control panel.

Compared with the prior art, the utility model has the advantages and positive effects that,

according to the utility model, the workpiece in the separated state of the upper die and the lower die can be adsorbed by arranging the air guide hole and released when the next station is opened, so that the injection molding operation can be smoothly and continuously performed, and the piston plate can provide power for the air guide pipe under the transmission of the movable rod by arranging the piston cylinder, so that no additional driving is needed, the driving cost is saved, the structure is novel, the operation is smooth, and the injection molding efficiency and the injection molding effect of the outer shell of the automobile electrical appliance are greatly improved.

Drawings

FIG. 1 is a schematic perspective view of a liftable injection mold for an injection molding machine;

FIG. 2 is a schematic cross-sectional front view of a liftable injection mold for an injection molding machine;

FIG. 3 is a schematic side view of a liftable injection mold for an injection molding machine;

fig. 4 is an enlarged schematic view of a portion a in fig. 2 of a liftable injection mold for an injection molding machine according to the present utility model.

Legend description: 1. a U-shaped plate; 2. a hydraulic cylinder; 3. a movable plate; 4. an upper die; 5. a guide rod; 6. a spring; 7. a guide slide block; 8. a lower die; 9. a support base; 10. a piston cylinder; 11. a piston plate; 12. a movable rod; 13. an air duct; 14. a fixing plate; 15. a material guide plate; 16. a top plate; 17. a roller; 18. a respiratory valve; 19. a stripper plate; 20. a control panel; 21. injection molding a tube; 22. and an air guide hole.

Description of the embodiments

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; 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 above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

The utility model will be further described with reference to the drawings and the specific embodiments

Examples

As shown in fig. 1, 2, 3 and 4, the present utility model provides a technical solution: the liftable injection mold comprises a U-shaped plate 1, wherein an upper pressing mold mechanism is arranged on the outer side of the U-shaped plate 1, a lower top mold mechanism is arranged on the outer side of the U-shaped plate 1 and below the upper pressing mold mechanism, a fixed plate 14 is fixedly connected between the inner walls of the U-shaped plate 1, a material guide mechanism is arranged on the outer side of the fixed plate 14, and a material removing mechanism is also arranged on the inner side of the U-shaped plate 1; the material removing mechanism comprises a piston cylinder 10, two piston cylinders 10 are fixedly connected to the bottom of the inner wall of a U-shaped plate 1, a piston plate 11 is slidably connected between the inner walls of the piston cylinders 10, an air duct 13 is fixedly connected to the bottom of one side of the piston plate 11, the air duct 13 is arranged as a hose, a movable rod 12 is fixedly connected to the top of the piston plate 11, and the piston plate 11 can provide power for the air duct 13 under the transmission of the movable rod 12, so that additional driving is not needed, the driving cost is saved.

Examples

As shown in fig. 1, fig. 2, fig. 3 and fig. 4, the upper pressing die mechanism comprises a hydraulic oil cylinder 2, the output end of the hydraulic oil cylinder 2 extends to the inner side of the U-shaped plate 1 and is fixedly connected with a movable plate 3, the bottom of the movable plate 3 is fixedly connected with an upper die 4, an air guide hole 22 is formed in the upper die 4, one end of the air guide hole 22 extends to the lower side of the upper die 4, the other end of the air guide hole 22 is fixedly connected with one end, far away from the piston cylinder 10, of the air guide pipe 13, the top of the movable rod 12 is fixedly connected with the bottom of the movable plate 3, and the movable rod can descend to be matched with the lower die 8 and can be subjected to injection molding operation.

The lower top die mechanism comprises guide rods 5, two guide rods 5 are fixedly connected to the bottom of the inner wall of the U-shaped plate 1, guide sliding blocks 7 are slidably connected to the outer sides of the two guide rods 5, a lower die 8 is fixedly connected between the sides, close to the guide sliding blocks 7, of the guide sliding blocks, springs 6 are sleeved on the outer sides of the guide rods 5 and below the lower die 8, supporting seats 9 are fixedly connected under the bottom of the inner wall of the U-shaped plate 1 and below the lower die 8, the upper die 4 descends to be in contact with the top of the lower die 8, the springs 6 are continuously descended and extruded until the bottoms of the lower die 8 abut against the supporting seats 9, the two are tightly matched, meanwhile, the upper die 8 is reset upwards by a part distance by the springs 6 when the upper die 4 is reset upwards, the part distance is insufficient for sucking up a workpiece due to insufficient negative pressure in a piston cylinder 10, at the moment, the reset of the lower die 8 is used for providing support until the springs 6 are reduced, and the negative pressure in the piston cylinder 10 and a gas guide tube 13 is sufficient for sucking up the workpiece.

Wherein, guide mechanism includes stock guide 15, the outside of fixed plate 14 is connected with stock guide 15 through torsion spring rotation, two roof 16 of bottom fixedly connected with of fly leaf 3, the bottom of roof 16 is rotated and is connected with gyro wheel 17, the outside of gyro wheel 17 contacts with the outside of stock guide 15, stripper 19 has been placed to the inboard bottom of U template 1, the outside fixedly connected with handle of stripper 19, the in-process that descends at fly leaf 3, drive two movable rods 12 and move down for gyro wheel 17 promotes stock guide 15 and rotates down, prevent that stock guide 15 from blocking fly leaf 3 and last mould 4 and moving down, stock guide 15 is reset at torsion spring after fly leaf 3 rises.

Wherein, the outside fixed mounting of upper mould 4 has breather valve 18, and breather valve 18 input tube's inside is linked together with the inside of air duct 13, and the atmospheric pressure in the air duct 13 can not the positive pressure too big or negative pressure too big through the breather valve 18 control of upper mould 4 outside.

Wherein, the outside of upper mould 4 is provided with injection pipe 21, and the one end of injection pipe 21 extends to the bottom of upper mould 4, can pour into hot melt plastics or rubber between the gap of upper mould 4 and lower mould 8.

The outer side of the U-shaped plate 1 is fixedly provided with a control panel 20, an electromagnetic valve outside the hydraulic cylinder 2 is electrically connected with the control panel 20, and the hydraulic cylinder 2 can be controlled to work through the control panel 20.

Working principle:

as shown in fig. 1, fig. 2, fig. 3 and fig. 4, when the injection molding device is in operation, the injection molding tube 21 is externally connected with the injection molding device, the hydraulic oil cylinder 2 is controlled to operate, the movable plate 3 is pushed to move downwards, the upper die 4 is pushed to move downwards until contacting with the top of the lower die 8, in the process, the upper die 4 is lowered until contacting with the top of the lower die 8, the spring 6 is continuously lowered and pressed until the bottom of the lower die 8 abuts against the supporting seat 9, so that the two are in close fit, meanwhile, the lower die 8 is also reset upwards by the spring 6 by a part distance, the part distance is insufficient for sucking up a workpiece due to insufficient negative pressure in the piston cylinder 10, at the moment, the reset of the lower die 8 is used for supporting until the spring 6 is reduced, the negative pressure in the piston cylinder 10 and the air duct 13 is sufficient for sucking up the workpiece, the movable rod 12 pushes the piston plate 11 to move downwards, the part below the piston plate 11 in the piston cylinder 10 generates positive pressure through the air duct 13, the air pressure is released at the air duct 22, the workpiece adsorbed outside the air duct 22 in a working cycle is released, and the workpiece slides down to the inclined material guide plate 15 along the inclined material guide plate 19; in the descending process of the movable plate 3, the two movable rods 12 are driven to move downwards, so that the rollers 17 push the material guide plate 15 to rotate downwards, and the material guide plate 15 is prevented from blocking the movable plate 3 and the upper die 4 to move downwards; meanwhile, the upper die 4 and the lower die 8 are contacted and matched and then are subjected to injection molding through the injection molding pipe 21, after cooling, the upper die 4 is lifted up by controlling the hydraulic oil cylinder 2 to retract, the movable plate 3 is driven to move upwards, meanwhile, the movable rod 12 is driven to move upwards, the piston plate 11 is driven to move upwards, negative pressure is generated at the position below the piston plate 11 in the piston cylinder 10, a workpiece can be adsorbed, the workpiece enters a circulation along with the next working cycle, and in the operations of air suction and air exhaust, the air pressure in the air guide pipe 13 is controlled and maintained through the breathing valve 18 at the outer side of the upper die 4, so that the positive pressure is not excessive or the negative pressure is not excessive.

Finally, it should be noted that: the embodiments described above are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced with equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims

1. Liftable injection mold for injection molding machine, including U template (1), its characterized in that: the automatic stamping device is characterized in that an upper stamping mechanism is arranged on the outer side of the U-shaped plate (1), a lower top stamping mechanism is arranged on the outer side of the U-shaped plate (1) and below the upper stamping mechanism, a fixed plate (14) is fixedly connected between the inner walls of the U-shaped plate (1), a material guide mechanism is arranged on the outer side of the fixed plate (14), and a material removing mechanism is arranged on the inner side of the U-shaped plate (1);

the material removing mechanism comprises a piston cylinder (10), two piston cylinders (10) are fixedly connected to the bottom of the inner wall of the U-shaped plate (1), a piston plate (11) is slidably connected between the inner walls of the piston cylinders (10), an air duct (13) is fixedly connected to the bottom of one side of the piston plate (11), the air duct (13) is set to be a hose, and a movable rod (12) is fixedly connected to the top of the piston plate (11).

2. The liftable injection mold for an injection molding machine of claim 1, wherein: go up moulding-die mechanism and include hydraulic cylinder (2), the output of hydraulic cylinder (2) extends to the inboard and fixedly connected with fly leaf (3) of U template (1), the bottom fixedly connected with of fly leaf (3) goes up mould (4), the inside of going up mould (4) is provided with air vent (22), the one end of air vent (22) extends to the below of last mould (4), the one end fixed connection of piston cylinder (10) is kept away from with air duct (13) to the other end of air vent (22), the top of movable rod (12) all with the bottom fixed connection of fly leaf (3).

3. The liftable injection mold for an injection molding machine of claim 1, wherein: the lower top die mechanism comprises guide rods (5), two guide rods (5) are fixedly connected to the bottom of the inner wall of the U-shaped plate (1), guide sliding blocks (7) are fixedly connected to the outer sides of the guide rods (5) in a sliding mode, a lower die (8) is fixedly connected between one sides of the guide sliding blocks (7) which are close to each other, springs (6) are sleeved on the outer sides of the guide rods (5) and below the lower die (8), and supporting seats (9) are fixedly connected to the bottoms of the inner walls of the U-shaped plate (1) and below the lower die (8).

4. A liftable injection mold for an injection molding machine according to claim 2, wherein: the guide mechanism comprises a guide plate (15), the outer side of a fixed plate (14) is rotationally connected with the guide plate (15) through a torsion spring, the bottom of a movable plate (3) is fixedly connected with two top plates (16), the bottom of the top plates (16) is rotationally connected with a roller (17), the outer side of the roller (17) is contacted with the outer side of the guide plate (15), the bottom of the inner side of a U-shaped plate (1) is provided with a discharge plate (19), and the outer side of the discharge plate (19) is fixedly connected with a handle.

5. A liftable injection mold for an injection molding machine according to claim 2, wherein: the outside of last mould (4) is fixed mounting has breather valve (18), breather valve (18) input tube's inside is linked together with the inside of air duct (13).

6. A liftable injection mold for an injection molding machine according to claim 2, wherein: an injection molding pipe (21) is arranged on the outer side of the upper die (4), and one end of the injection molding pipe (21) extends to the bottom of the upper die (4).

7. A liftable injection mold for an injection molding machine according to claim 2, wherein: the outside of U template (1) is fixed mounting has control panel (20), the outside solenoid valve of hydraulic cylinder (2) and control panel (20) electric connection.