CN117549512A

CN117549512A - Integrated injection mold

Info

Publication number: CN117549512A
Application number: CN202311650473.1A
Authority: CN
Inventors: 顾小春
Original assignee: Hefei University of Technology
Current assignee: Hefei University of Technology
Priority date: 2023-11-29
Filing date: 2023-11-29
Publication date: 2024-02-13

Abstract

The invention discloses an integrated injection mold, which belongs to the field of injection molds and comprises the following components: the device comprises a supporting seat, a fixed die and a movable die; the fixed die is fixedly arranged on the supporting seat; the fixed die is provided with a concave die cavity and an injection tube; the fixed die is provided with a channel IV on the ring side of the female die cavity; the channel IV is spiral; the channel four is fixedly provided with two connecting pipes; the support seat is provided with a movable seat capable of moving linearly; the movable die comprises a supporting seat, a male die table, a rotary column and a motor I; the male die table is fixedly arranged on the supporting seat; compared with the prior art, the integrated injection mold is provided with the rotatable rotary column in the movable mold, and the cooling channel is arranged in the rotary column; the rotary column drives the cooling channel to rotate, so that liquid in the cooling channel uniformly absorbs the temperature inside the plastic cup during injection molding, and the inner surface of the plastic cup is prevented from being uneven.

Description

Integrated injection mold

Technical Field

The invention relates to the field of injection molds, in particular to an integrated injection mold.

Background

The injection mold is a tool for producing plastic products; the plastic injection molding method is a processing method used for mass production of parts with complex shapes, and specifically refers to the process that heated and melted plastic is injected into a die cavity under high pressure by an injection molding machine and cooled and solidified to obtain a formed product. When the plastic products of the plastic cups are produced, the female die and the male die are utilized to form a die cavity, and then plastic is injected through an injection port; a cold runner is usually arranged in the female die, and cooling is performed by circulating cooling liquid so as to solidify the cooling liquid; but the cold runner can only cool the outer surface of the plastic cup, the cooling rate of the inner surface of the plastic cup is slower, and the inner surface of the plastic cup after the forming operation is contracted inwards to enable the inner surface of the plastic cup to be uneven, so that the forming quality of the plastic cup is poor.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides an integrated injection mold, wherein a rotatable rotary column is arranged in a movable mold, and a cooling channel is arranged in the rotary column; the rotary column drives the cooling channel to rotate, so that liquid in the cooling channel uniformly absorbs the temperature inside the plastic cup during injection molding, and the inner surface of the plastic cup is prevented from being uneven.

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

an integrated injection mold, comprising: the device comprises a supporting table, a fixed die and a movable die; the fixed die is fixedly arranged on the supporting table; the fixed die is provided with a concave die cavity and an injection tube; the fixed die is provided with a channel IV on the ring side of the female die cavity; the channel IV is spiral; the channel four is fixedly provided with two connecting pipes; the supporting table is provided with a movable seat capable of moving linearly; the movable die comprises a supporting seat, a male die table, a rotary column and a motor I; the male die table is fixedly arranged on the supporting seat; the rotary column is rotationally connected inside the male die table; the supporting seat and the motor I are fixedly connected with the movable seat;

the movable seat is fixedly provided with a water inlet tank and a water outlet tank; the water inlet tank and the water outlet tank are both in rotary connection with the rotary column; a first channel, a second channel and a third channel are arranged in the rotary column; wherein one port of the first channel is arranged in the water inlet tank; one port of the second channel is arranged in the water outlet tank; the third channel is arranged on one side of the rotary column close to the concave die cavity; two ends of the third channel are respectively communicated with the first channel and the second channel; the first motor is connected with the rotary column; the water inlet tank and the water outlet tank are fixedly provided with water pipes.

In some embodiments, the stationary mold comprises a lower mold base and an upper mold base; the lower die holder and the upper die holder are both provided with half die cavities; two half mould cavities form the female mould cavity; the lower die holder and the upper die holder are provided with a fifth channel; two channels five form a channel four; the fifth channel is provided with connecting holes which are arranged in an array at one side of the lower die holder and the upper die holder, which are close to each other; grooves are formed in the connecting holes of the lower die holder; the upper die holder is provided with sealing pipes at the connecting holes; the sealing tube abuts against the groove; the supporting table is fixedly provided with a linear driving mechanism; the linear driving mechanism is used for driving the upper die holder to linearly move; the inside of die holder is provided with the ejector pad that can rectilinear movement.

In some embodiments, the movable seat is provided with a chute; the support table is fixedly provided with a sliding rail; the movable seat is in sliding connection with the sliding rail through the sliding groove; the support platform is symmetrically and fixedly provided with a first screw seat; the screw seat is rotationally connected with a screw I; the first screw rod is in threaded connection with the movable seat; the first screw is fixedly provided with a second motor; the second motor is connected with the first screw rod.

In some embodiments, the movable seat is fixedly provided with a water storage tank; two water pumps are arranged in the water storage tank; the water pumps are respectively connected with one water pipe; the water storage tank is fixedly provided with a refrigerating sheet.

In some embodiments, the support platform is symmetrically and fixedly provided with a second screw seat; the second screw seat is rotationally connected with a second screw; the second screw rods are fixedly provided with chain wheels; the chain wheels are connected through a chain; the second screw seat is fixedly provided with a second motor; the second motor is connected with one second screw rod; the upper die holder is in threaded connection with the second screw rod; the first electric push rod is fixedly arranged on the supporting table; and the first electric push rod is fixedly connected with the push block.

In some embodiments, the support table is provided with a discharge hole between the fixed die and the movable die; a bracket is arranged at the bottom of the discharge hole; the bracket is fixedly provided with a second electric push rod; the second electric push rod is fixedly provided with a recovery seat; the recovery seat is provided with a recovery groove; the bracket is fixedly arranged at the recovery groove and is fixedly provided with an electric push rod III; and the push plate is fixedly arranged on the electric push rod III.

In some embodiments, the recovery tank is fixedly mounted with a stopper.

The invention has the beneficial effects that:

the integrated injection mold is characterized in that a rotatable rotary column is arranged in a movable mold, and a cooling channel is arranged in the rotary column; the rotary column drives the cooling channel to rotate, so that liquid in the cooling channel uniformly absorbs the temperature inside the plastic cup during injection molding, and the inner surface of the plastic cup is prevented from being uneven.

Drawings

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

FIG. 1 is a schematic perspective view of the present application;

FIG. 2 is a schematic view of the upper die holder of the present application;

FIG. 3 is a schematic view of a recycling seat according to the present application;

FIG. 4 is an internal cooling internal cross-sectional view of the present application;

fig. 5 is an enlarged schematic view at a of the present application.

Detailed Description

The following description of the embodiments of the present invention 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 invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the description of the present invention, it should be understood that the terms "open," "upper," "lower," "thickness," "top," "middle," "length," "inner," "peripheral," and the like indicate orientation or positional relationships, merely for convenience in describing the present invention and to simplify the description, and do not indicate or imply that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The term fixedly connected in this application refers to a connection without any relative movement after the parts or components are installed; the common parts are fixed together by using screws, splines, wedge pins and the like, and the connecting mode can be detached during maintenance and cannot damage the parts; in addition, the parts and components can not be used secondarily in such a way as welding, riveting, tenon passing and matching and the like, and the parts and components can not be disassembled in the way of forging, sawing or oxygen cutting during maintenance or replacement. The rotating connection in the application is a connection that after parts or components are installed, the parts generate relative rotation motion relative to a fixing piece, and the common form is that the bearings are installed on the fixing piece, the parts are installed on the inner ring or the outer ring of the bearings, and the bearings are utilized to complete the rotation motion. The sliding connection in the present application is a connection in which a part or a component can be moved on a fixing member after the part or the component is mounted.

An integrated injection mold, comprising: the device comprises a supporting table 1, a fixed die and a movable die; the fixed die is fixedly arranged on the supporting table 1; the fixed die is provided with a concave die cavity and an injection pipe; the fixed die is provided with a channel IV on the annular side of the cavity of the female die; the channel IV is spiral; the channel four is fixedly provided with two connecting pipes 2; the support seat 4 is provided with a movable seat 3 capable of moving linearly; the movable mould comprises a supporting seat 4, a male mould table 5, a rotary column 6 and a motor I7; the support seat 4 is fixedly provided with a male die table 5; a rotary column 6 is rotatably connected in the male die table 5; the supporting seat 4 and the motor I7 are fixedly connected with the movable seat 3;

the movable seat 3 is fixedly provided with a water inlet tank 8 and a water outlet tank 9; the water inlet tank 8 and the water outlet tank 9 are both in rotary connection with the rotary column 6; the interior of the rotary column 6 is provided with a first channel 10, a second channel 11 and a third channel 12; wherein one port of the first channel 10 is arranged inside the water inlet tank 8; one port of the second channel 11 is arranged inside the water tank 9; the third channel 12 is arranged on one side of the rotary column 6 close to the die cavity; two ends of the channel III 12 are respectively communicated with the channel I10 and the channel II 11; the motor I7 is connected with the rotary column 6; the water inlet tank 8 and the water outlet tank 9 are fixedly provided with water pipes 13;

when injection molding is performed, the water pipes 13 of the water inlet tank 8 and the water outlet tank 9 and the connecting pipe 2 are connected with external water supply equipment; then driving the movable mould to move until the male mould platform 5 and the female mould cavity are matched, and injecting molten plastic into the matched mould cavity of the matched plastic cup through the injection pipe; during cooling, cooling liquid is injected into the outer sides of the four pairs of plastic cups of the channel through the connecting pipe 2, cooling liquid is injected into the water inlet tank 8 through the water pipe 13, the cooling liquid sequentially enters the channel III 12, the channel II 11 and the water inlet tank 8 from the channel I10, and finally is discharged through the water outlet tank 9; meanwhile, the motor I7 is started, the motor I7 drives the rotary column 6 to rotate, so that three channels are driven to rotate, internal heat of the plastic cup is uniformly absorbed, and as one port of the channel I10 is arranged in the water inlet tank 8, one port of the channel II 11 is arranged in the water outlet tank 9, and the internal cooling channel I10 and the internal cooling channel II 11 always keep exchanging with internal liquid of the water inlet tank 8 and the water outlet tank 9; the inner and outer double-layer cooling is adopted, so that the plastic cup can be cooled uniformly, and uneven concave-convex points or cracks of the plastic cup due to different inner and outer cooling speeds are avoided.

The linearly movable parts can be realized through a linear driving mechanism, and common linear driving mechanisms comprise a hydraulic telescopic rod, an electric telescopic rod and a pneumatic telescopic rod; of course, other structures capable of changing the position of the connecting end can be used for replacing the connecting end, such as a chain lifting mechanism used in a forklift, a scissor telescopic mechanism used on a scissor lifter, a spiral lifting mechanism in a spiral lifter and the like.

In some embodiments, the stationary mold comprises a lower mold base 14 and an upper mold base 15; the lower die holder 14 and the upper die holder 15 are provided with half die cavities 16; the two mold halves 16 form a female mold cavity; the lower die holder 14 and the upper die holder 15 are provided with a channel five; two channels five form a channel four; the fifth channel is provided with connecting holes arranged in an array at one side of the lower die holder 14 and the upper die holder 15, which are close to each other; the lower die holder 14 is provided with grooves 17 at the connecting holes; the upper die holder 15 is provided with sealing pipes 18 at the connecting holes; the sealing tube 18 butts against the groove 17; the supporting table 1 is symmetrically and fixedly provided with a linear driving mechanism; the linear driving mechanism is used for driving the upper die holder 15 to linearly move; a push block 19 capable of moving linearly is arranged in the lower die holder 14; after injection molding is finished, the driving die is driven to be separated from the fixed die; then the upper die holder 15 is driven to be separated from the lower die holder 14, but the sealing tube 18 is not completely separated from the groove 17; at the moment, the contact area between the plastic cup and the fixed die is reduced, and then the pushing block 19 drives the plastic cup to move, so that the plastic cup is taken out; by gradually reducing the contact surface between the plastic cup and the fixed die, the plastic cup is prevented from being pushed out due to the overlarge pushing force of the pushing block 19 in the process of taking out the plastic cup.

In some embodiments, the movable seat 3 is provided with a chute; the support table 1 is fixedly provided with a sliding rail; the movable seat 3 is connected with the sliding rail in a sliding way through a sliding groove; the supporting table 1 is symmetrically and fixedly provided with a first screw seat 20; the screw seat I20 is rotationally connected with a screw I21; the first screw rod 21 is in threaded connection with the movable seat 3; the first screw rod 21 is fixedly provided with a second motor 22; the second motor 22 is connected with the first screw 21; the motor II 22 drives the screw rod I21 to rotate, and the screw rod I21 drives the movable seat 3 to linearly move along the sliding rail through threads.

In some embodiments, the movable seat 3 is fixedly provided with a water storage tank 23; two water pumps are arranged in the water storage tank 23; the water pumps are respectively connected with a water pipe 13; the water storage tank 23 is fixedly provided with a refrigerating sheet; the water storage tank 23 supplies water to the water inlet tank 8 through the water pump, the water outlet tank 9 pumps water, and the refrigerating sheet is used for cooling the inside of the water storage tank 23, so that the phenomenon that the temperature of liquid supplied to the water inlet tank 8 by the water storage tank 23 is too high and the cooling effect is not achieved is avoided.

In some embodiments, the support table 1 is symmetrically and fixedly provided with a second screw seat 24; the screw rod seat II 24 is rotationally connected with a screw rod II 25; the second screw rods 25 are fixedly provided with chain wheels; the chain wheels are connected through a chain; the second screw seat 24 is fixedly provided with a third motor 26; the third motor 26 is connected with a second screw rod 25; the upper die holder 15 is in threaded connection with the second screw rod 25; the first electric push rod 27 is fixedly arranged on the supporting table 1; the first electric push rod 27 is fixedly connected with the push block 19; the third motor 26 is used for driving the second screw rod 25 to rotate, and the second screw rod 25 drives the upper die holder 15 to linearly move through threads; the first electric push rod 27 is used for driving the push block 19 to move linearly.

In some embodiments, the support table 1 is provided with a discharge hole 28 between the fixed mold and the movable mold; a bracket 29 is arranged at the bottom of the discharge hole 28; the bracket 29 is fixedly provided with a second electric push rod 30; the second electric push rod 30 is fixedly provided with a recovery seat 31; the recovery seat 31 is provided with a recovery groove 32; the bracket 29 is fixedly arranged at the recovery groove 32 and is fixedly provided with an electric push rod III 33; the third electric push rod 33 is fixedly provided with a push plate 34; the second electric push rod 30 drives the recovery seat 31 to move upwards, the recovery groove 32 is used for receiving the pushed-out plastic cup, after the second electric push rod 30 is reset, the plastic cup is pushed out towards the other side through the third electric push rod 33, and the conveyor belt can be placed on the other side for conveying.

In some embodiments, the recovery tank 32 is fixedly mounted with a stopper 35, the stopper 35 being used to prevent the plastic cup from being pushed out of the recovery tank 32.

The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims.

Claims

1. An integrated injection mold, comprising: the device comprises a supporting table (1), a fixed die and a movable die; the fixed die is fixedly arranged on the supporting table (1); the fixed die is provided with a concave die cavity and an injection tube; the fixed die is provided with a channel IV on the ring side of the female die cavity; the channel IV is spiral; two connecting pipes (2) are fixedly arranged in the channel four; the supporting table (1) is provided with a movable seat (3) capable of moving linearly; the movable die comprises a supporting seat (4), a male die table (5), a rotary column (6) and a motor I (7); the male die table (5) is fixedly arranged on the supporting seat (4); the inner part of the male die table (5) is rotationally connected with the rotary column (6); the supporting seat (4) and the motor I (7) are fixedly connected with the movable seat (3);

the movable seat (3) is fixedly provided with a water inlet tank (8) and a water outlet tank (9); the water inlet tank (8) and the water outlet tank (9) are both in rotary connection with the rotary column (6); a first channel (10), a second channel (11) and a third channel (12) are arranged in the rotary column (6); wherein one port of the first channel (10) is arranged inside the water inlet tank (8); one port of the second channel (11) is arranged in the water outlet tank (9); the channel III (12) is arranged on one side of the rotary column (6) close to the concave die cavity; two ends of the channel III (12) are respectively communicated with the channel I (10) and the channel II (11); the motor I (7) is connected with the rotary column (6); the water inlet tank (8) and the water outlet tank (9) are fixedly provided with water pipes (13).

2. The integrated injection mold of claim, wherein the stationary mold comprises a lower mold base (14) and an upper mold base (15); the lower die holder (14) and the upper die holder (15) are both provided with a half die cavity (16); -two of said half-cavities (16) constitute said female cavity; the lower die holder (14) and the upper die holder (15) are provided with a fifth channel; two channels five form a channel four; the fifth channel is provided with connecting holes which are arranged in an array at one side of the lower die holder (14) and the upper die holder (15) which are close to each other; the lower die holder (14) is provided with grooves (17) at the connecting holes; the upper die holder (15) is provided with sealing pipes (18) at the connecting holes; -said sealing tube (18) abutting against said groove (17); the supporting table (1) is fixedly provided with a linear driving mechanism; the linear driving mechanism is used for driving the upper die holder (15) to linearly move; the inside of die holder (14) is provided with ejector pad (19) that can rectilinear movement.

3. The integrated injection mold according to claim, characterized in that the movable seat (3) is provided with a runner; the support table (1) is fixedly provided with a sliding rail; the movable seat (3) is in sliding connection with the sliding rail through the sliding groove; the first screw seat (20) is symmetrically and fixedly arranged on the supporting table (1); the first screw seat (20) is rotationally connected with a first screw (21); the first screw rod (21) is in threaded connection with the movable seat (3); the first screw rod (21) is fixedly provided with a second motor (22); the second motor (22) is connected with the first screw rod (21).

4. The integrated injection mold according to claim, characterized in that the movable seat (3) is fixedly provided with a water storage tank (23); two water pumps are arranged in the water storage tank (23); the water pumps are respectively connected with one water pipe (13); the water storage tank (23) is fixedly provided with a refrigerating sheet.

5. The integrated injection mold according to claim, wherein the support table (1) is symmetrically and fixedly provided with a screw seat two (24); the screw rod seat II (24) is rotationally connected with a screw rod II (25); the second screw rods (25) are fixedly provided with chain wheels; the chain wheels are connected through a chain; the second screw seat (24) is fixedly provided with a third motor (26); the third motor (26) is connected with one second screw rod (25); the upper die holder (15) is in threaded connection with the second screw rod (25); the first electric push rod (27) is fixedly arranged on the supporting table (1); the first electric push rod (27) is fixedly connected with the push block (19).

6. The integrated injection mold according to claim 5, characterized in that the support table (1) is provided with a discharge hole (28) between the stationary mold and the movable mold; a bracket (29) is arranged at the bottom of the discharging hole (28); the bracket (29) is fixedly provided with a second electric push rod (30); the second electric push rod (30) is fixedly provided with a recovery seat (31); the recovery seat (31) is provided with a recovery groove (32); the bracket (29) is fixedly arranged at the recovery groove (32) and is fixedly provided with an electric push rod III (33); the third electric push rod (33) is fixedly provided with a push plate (34).

7. The integrated injection mold according to claim 6, characterized in that the recycling tank (32) is fixedly equipped with a stopper (35).