CN111531769A

CN111531769A - Be used for plastics casting to prevent producing bellied mould

Info

Publication number: CN111531769A
Application number: CN202010532269.XA
Authority: CN
Inventors: 刘雄
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-06-12
Filing date: 2020-06-12
Publication date: 2020-08-14

Abstract

The invention discloses a mold for preventing bulges during plastic casting, which comprises a mold, wherein an extrusion rod is inserted into the side surface of the mold, a metal plate is fixedly connected to the side surface of the extrusion rod, a conductive rod is slidably connected to the side surface of the metal plate, a receiving wheel is engaged and connected to the side surface of the extrusion rod, an ejector rod is engaged and connected to the side surface of an inner wheel of the receiving wheel, a centrifugal rod is inserted into the side surface of a rotating wheel, a magnetic block is slidably connected to one side of the centrifugal rod, which is far away from the center of the wheel, a central shaft is fixedly connected to the bottom of the rotating wheel, an intermittent wheel is arranged at the bottom of the central shaft, a stop lever is fixedly connected to the inner wall of the intermittent wheel, a magnetic isolation plate is fixedly connected to the surface. This be used for plastics casting to prevent to produce bellied mould uses through the cooperation of extrusion stem and takeover wheel to reach and prevent when appearing becoming flexible that the product from appearing bellied effect between the mould piece.

Description

Be used for plastics casting to prevent producing bellied mould

Technical Field

The invention relates to the technical field of plastic molds, in particular to a mold for preventing a bulge from being generated in plastic casting.

Background

The plastic mould is a tool which is matched with a plastic forming machine in the plastic processing industry and endows a plastic product with complete configuration and accurate size.

Because the mould in use needs to be in the same place a plurality of module combinations, in the long-term use of mould, can appear becoming flexible between the module, and then leads to when the liquid that moulds plastics solidifies, because produce stress protrusion because of the gap between the extrusion module, finally lead to the cast product to appear the defect, because no matter how accurate mould all can the error appear and damage, consequently need to design one kind and prevent that the product from appearing bellied mould when can appearing becoming flexible between the mould piece.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides the mold for preventing the bulge during plastic casting, which has the advantages of preventing the bulge of the product when the looseness occurs between the mold blocks and the like, and solves the problem that the bulge of the product cannot be prevented when the looseness occurs between the mold blocks in the conventional mold.

(II) technical scheme

In order to achieve the purpose of preventing the product from protruding when the looseness occurs between the die blocks, the invention provides the following technical scheme: a mold for preventing bulges from being generated in plastic casting comprises a mold, wherein an extrusion rod is arranged on the side surface of the mold in an inserting mode, a metal plate is fixedly connected to the side surface of the extrusion rod, a conductive rod is connected to the side surface of the metal plate in a sliding mode, a receiving wheel is connected to the side surface of the extrusion rod in a meshing mode, an ejector rod is connected to the side surface of an inner wheel of the receiving wheel in a meshing mode, a positive magnetic plate is fixedly connected to one side, away from the receiving wheel, of the ejector rod, a heating box is arranged above the positive magnetic plate, a rotating wheel is arranged above the heating box, a centrifugal rod is arranged on the side surface of the rotating wheel in an inserting mode, a magnetic block is connected to one side, away from a wheel core, of the centrifugal rod is fixedly connected to the bottom of the rotating wheel, an intermittent wheel is arranged at the bottom of the central, and a mercury tank is arranged on the left side of the rotating wheel.

Preferably, a push rod is connected to the inside of the mercury tank in a sliding mode.

Preferably, a horsepower disc is slidably connected to the left side of the push rod.

Preferably, the extrusion rod is connected with the die through an extrusion spring, and the extrusion rod is extruded when the die block is loosened, so that the extrusion rod and the die block are relatively displaced.

Preferably, the horsepower disk controls the output temperature of the heating box so that the heating box will eject heat energy to heat the molten plastic above the gap so that the temperature of this portion of plastic is the same as the temperature of the other molten plastic.

Preferably, the magnetism of the magnetic block is the same as that of the positive magnetic plate, and when the magnetic block enters the space between the modules, the positive magnetic plate generates upward magnetic force on the magnetic block, so that the magnetic block moves upward, the molten plastic attached to the upper part of the gap rotates, and the protrusion generated by extruding the molten plastic into the gap is smoothed.

Preferably, a support rod is arranged on the side surface of the middle shaft and inside the intermittent wheel, so that the stop rod can block the rotation of the middle shaft only after the middle shaft rotates for a circle.

Preferably, the stop lever and the support lever arranged on the surface of the middle shaft are arranged in a staggered manner.

(III) advantageous effects

Compared with the prior art, the invention provides the mould for preventing the bulge from being generated in the plastic casting, which has the following beneficial effects:

1. this be used for plastics casting to prevent to produce bellied mould, through the cooperation of extrusion stem and take over the wheel and use, behind the mould block compound die, the liquid plastics of casting in the case mould produces the extrusion to the mould block.

When the mold blocks are loosened, the extrusion rod and the mold blocks are relatively displaced under the action of the extrusion spring, so that the extrusion rod and the bearing wheel are in meshing transmission, the bearing wheel rotates to move the ejector rod meshed with the extrusion rod in the direction away from the bearing wheel, and the positive magnetic plate is ejected out of the mold blocks and enters gaps between the mold blocks due to looseness.

Meanwhile, when the extrusion stem removed, the metal sheet of its side can move between the conducting rod, make the conducting rod circular telegram, and then lead to the motor of runner to rotate, the runner rotates, under the effect of centrifugal force, to keeping away from the direction of the wheel center and removing, rotate simultaneously and drive the module because of not hard up between the gap that appears with the magnetism piece, because positive magnetic plate is the same with magnetism piece magnetism, the event is when the magnetism piece enters into between the module, positive magnetic plate produces ascending magnetic force to the magnetism piece, the event leads to magnetism piece rebound, paste the melting plastics rotation of tight gap top, with the protruding floating that the extrusion gap of melting plastics produced.

When the runner rotates, the axis that can drive the below in step rotates, because centraxonial side is provided with the bracing piece, only rotate the axis and rotate just can be blockked by the pin after a week when rotating, and then drive the intermittent type wheel and rotate, the magnetic shield that the intermittent type wheel drove the side setting rotates, make after the arch that the floating molten plastics extrusion gap produced of magnetic block, the magnetic force is isolated between magnetic block and the positive magnetic plate with the magnetic shield to the magnetic shield, the magnetic block resumes initial position downwards, then inside being driven to rotate the mould by the centrifugal bar, later form the circulation, constantly floating the arch, thereby reached and prevented when appearing becoming flexible between the mould piece that the product from appearing bellied effect.

2. This be used for plastics casting to prevent to produce bellied mould, cooperation through mercury case and push rod is used, when moulding plastics, the temperature of fused plastics is absorbed to the mercury case, make inside mercury inflation, promote the push rod downwards, the push rod slides at horsepower dish surface, and the output temperature of heating cabinet is being controlled to the horsepower dish, so the heating cabinet can spout the fused plastics heating of heat energy to the gap top, make the temperature of this part plastics the same with other fused plastics's temperature, thereby reached and prevented that the gap that appears because the module is not hard up leads to the fused plastics temperature of top to be different with other regions, and then lead to the cooling shrink effect that the difference appears.

Drawings

FIG. 1 is a schematic cross-sectional view of the entire structure of the present invention;

FIG. 2 is a schematic view of the structure of the present invention and the connecting mechanism of the extrusion stem;

FIG. 3 is a schematic view of the connecting mechanism of the structure and the middle shaft of the present invention;

FIG. 4 is a schematic top view of the present invention showing the connection between the center shaft and the intermittent wheel;

FIG. 5 is a schematic view of the connection between the extrusion rod and the receiving wheel according to the present invention.

In the figure: 1. the device comprises a die, 2, an extrusion rod, 3, a conductive rod, 4, a metal plate, 5, a bearing wheel, 6, a push rod, 7, a positive magnetic plate, 8, a mercury tank, 9, a push rod, 10, a horsepower disc, 11, a heating tank, 12, a rotating wheel, 13, a centrifugal rod, 14, a magnetic block, 15, a middle shaft, 16, an intermittent wheel, 17, a magnetism isolating plate, 18 and a stop rod.

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. 1-5, a mold for preventing plastic casting from generating protrusions comprises a mold 1, wherein the mold 1 is made of stainless steel, so that equipment can be effectively prevented from being corroded, the service life of the equipment is greatly prolonged, the production cost is reduced, and an indispensable effect on enterprises is achieved, an extrusion rod 2 is inserted into the side surface of the mold 1, the extrusion rod 2 is connected with the mold 1 through an extrusion spring, the extrusion rod 2 is extruded when the mold 1 is loosened, so that the extrusion rod 2 and the mold 1 are relatively displaced, a metal plate 4 is fixedly connected to the side surface of the extrusion rod 2, a conductive rod 3 is slidably connected to the side surface of the metal plate 4, a receiving wheel 5 is engaged and connected to the side surface of an inner wheel of the receiving wheel 5, a top rod 6 is engaged and connected to the side surface of the top rod 6 far away from the receiving wheel 5, a positive magnetic plate 7 is fixedly connected to one side surface of the top magnetic plate 7, a heating box 11, a rotating wheel 12 is arranged above the heating box 11, a centrifugal rod 13 is inserted into the side surface of the rotating wheel 12, a magnetic block 14 is connected to one side of the centrifugal rod 13 far away from the wheel center in a sliding manner, the magnetic block 14 has the same magnetism as the positive magnetic plate 7, when the magnetic block 14 enters the space between the modules 1, the positive magnetic plate 7 generates an upward magnetic force on the magnetic block 14, so that the magnetic block 14 moves upwards, molten plastic clinging to the upper part of the gap rotates to flatten the bulge generated by extruding the molten plastic into the gap, a middle shaft 15 is fixedly connected to the bottom of the rotating wheel 12, a support rod is arranged on the side surface of the middle shaft 15 and inside the intermittent wheel 16, so that the support rod can be blocked by the stop rod 18 only after the rotating middle shaft 15 rotates for one circle, the bottom of the middle shaft 15 is provided with the intermittent wheel 16, the stop rod 18 is fixedly connected to the inner wall of the intermittent wheel 16, and, intermittent type wheel 16's fixed surface is connected with magnetic shield 17, the left side of runner 12 is provided with mercury case 8, the inside sliding connection of mercury case 8 has push rod 9, push rod 9's material is the stainless steel, can effectively prevent equipment by the corruption, very big extension the service life of equipment, manufacturing cost is reduced, there is indispensable effect to the enterprise, push rod 9's left side sliding connection has horsepower dish 10, horsepower dish 10 controls the output temperature of heating cabinet 11, make heating cabinet 11 can spout the fused plastic heating of heat energy to the gap top, make the temperature of this part plastics the same with the temperature of other fused plastics.

After the die 1 is closed, liquid plastic is cast in the box die 1, and the die 1 is extruded.

When the looseness appears between the die 1 blocks, the extrusion rod 2 and the die block generate relative displacement under the action of the extrusion spring, so that the extrusion rod 2 and the receiving wheel 5 generate meshing transmission, the receiving wheel 5 rotates to move the ejector rod 6 meshed with the receiving wheel towards the direction far away from the receiving wheel 5, and then the positive magnetic plate 7 is ejected out of the die block and enters gaps of the die block due to looseness.

Meanwhile, when the extrusion rod 2 moves, the metal plate 4 on the side surface of the extrusion rod can move between the conductive rods 3, so that the conductive rods 3 are electrified, the motor of the rotating wheel 12 is further caused to rotate, the rotating wheel 12 rotates and moves in the direction away from the wheel center under the action of centrifugal force, meanwhile, the magnetic block 14 is driven to the gap between modules due to looseness by rotation, and as the magnetism of the positive magnetic plate 7 is the same as that of the magnetic block 14, when the magnetic block 14 enters the gap between the modules, the positive magnetic plate 7 generates upward magnetic force on the magnetic block 14, so that the magnetic block 14 moves upwards, the molten plastic attached to the upper part of the gap rotates, and the bulge generated by extruding the molten plastic into the gap is leveled.

When runner 12 rotates, axis 15 below can be driven to rotate synchronously, because the side of axis 15 is provided with the bracing piece, only rotate axis 15 and rotate just can be blockked by pin 18 after a week when rotating, and then drive intermittent type wheel 16 and rotate, intermittent type wheel 16 drives the baffle 17 rotation that the side set up, make after magnetism piece 14 screeds the arch that the molten plastics extrusion gap produced, baffle 17 isolates magnetism between magnetism piece 14 and positive magnetic plate 7, magnetism piece 14 resumes initial position downwards, then it rotates to inside the mould 1 to be driven by centrifugal rod 13, later form the circulation, constantly screeding the arch, thereby reached and prevented that the bellied effect from appearing in the product when not hard up appearing between mould 1 piece.

During injection molding, the temperature of the molten plastic is absorbed by the mercury tank 8, so that the mercury inside the mercury expands, the push rod 9 is pushed downwards, the push rod 9 slides on the surface of the horsepower disk 10, the output temperature of the heating tank 11 is controlled by the horsepower disk 10, and therefore the heating tank 11 can eject heat energy to heat the molten plastic above the gap, so that the temperature of the plastic is the same as that of other molten plastics, and the effect of preventing the temperature of the molten plastic above the gap caused by loosening of the modules from being different from that of other areas and further causing the difference of cooling shrinkage is achieved.

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

Claims

1. Mould for plastic casting, which prevents the production of bulges, comprising a mould (1), characterized in that: the die is characterized in that an extrusion rod (2) is arranged on the side face of the die (1) in an inserting mode, a metal plate (4) is fixedly connected to the side face of the extrusion rod (2), a conductive rod (3) is connected to the side face of the metal plate (4) in a sliding mode, a receiving wheel (5) is connected to the side face of the extrusion rod (2) in a meshing mode, an ejector rod (6) is connected to the side face of an inner wheel of the receiving wheel (5) in a meshing mode, a positive magnetic plate (7) is fixedly connected to one side, far away from the receiving wheel (5), of the ejector rod (6), a heating box (11) is arranged above the positive magnetic plate (7), a rotating wheel (12) is arranged above the heating box (11), a centrifugal rod (13) is arranged on the side face of the rotating wheel (12) in an inserting mode, a magnetic block (14) is connected to one side, far away from a wheel center, of the centrifugal rod (13), the inner wall of the intermittent wheel (16) is fixedly connected with a stop lever (18), the surface of the intermittent wheel (16) is fixedly connected with a magnetism isolating plate (17), and the left side of the rotating wheel (12) is provided with a mercury tank (8).

2. The mold for preventing the generation of the protrusion for plastic casting according to claim 1, wherein: the inside sliding connection of mercury case (8) has push rod (9).

3. The mold for preventing the generation of the protrusion for plastic casting according to claim 2, wherein: the left side of the push rod (9) is connected with a horsepower disc (10) in a sliding manner.

4. The mold for preventing the generation of the protrusion for plastic casting according to claim 1, wherein: the extrusion rod (2) is connected with the die (1) through an extrusion spring.

5. The mold for preventing the generation of the protrusion for plastic casting according to claim 1, wherein: the horsepower disc (10) controls the output temperature of the heating box (11).

6. The mold for preventing the generation of the protrusion for plastic casting according to claim 1, wherein: the magnetic block (14) has the same magnetism as the positive magnetic plate (7).

7. The mold for preventing the generation of the protrusion for plastic casting according to claim 1, wherein: and a support rod is arranged on the side surface of the middle shaft (15) and inside the intermittent wheel (16).

8. The mold for preventing the generation of the protrusion for plastic casting according to claim 1, wherein: the stop lever (18) and the support lever arranged on the surface of the middle shaft (15) are arranged in a staggered way.