Demoulding mechanism of injection molding machine
Technical Field
The utility model relates to the technical field of demolding mechanisms, in particular to a demolding mechanism of an injection molding machine.
Background
Injection molding machines, also known as injection molding machines or injection molding machines, are the main molding equipment for producing plastic products of various shapes from thermoplastic or thermosetting plastics by using plastic molding dies, and are divided into vertical, horizontal and all-electric type, and the injection molding machines can heat the plastics, apply high pressure to the molten plastics, and make the molten plastics be ejected to fill the die cavity of the dies.
The existing injection molding machine needs to carry out demolding treatment after injection molding, and then carries out the next injection molding process after demolding, so that circulation is realized, but when demolding works, the condition that a mold cavity is stuck often occurs, the condition often causes low product yield and the condition that the overall working efficiency is reduced, and therefore, the demolding mechanism of the injection molding machine is provided.
Disclosure of utility model
The utility model provides a demoulding mechanism of an injection molding machine, which has the effect of convenient demoulding.
The technical scheme of the utility model is as follows:
The utility model provides a demoulding mechanism of injection molding machine, includes lower mould, goes up mould, protruding membrane piece, cavity of moulding plastics, the mouth of moulding plastics, the top surface of lower mould is equipped with the mould, the top surface of lower mould is connected with protruding membrane piece, go up the bottom surface of mould and seted up the cavity of moulding plastics that uses with protruding membrane piece cooperation, go up the top surface of mould and seted up the mouth of moulding plastics that moulds plastics the cavity intercommunication, the groove of accomodating has been seted up to the top surface of moulding plastics the cavity, accomodating the groove and be the mouth type, the ejecting piece has been inserted to the inner wall bottom of accomodating the groove, four hydraulic levers that are pairwise opposite are inserted to the top surface of going up the mould, every the flexible end of hydraulic lever all moves down in the inner wall of accomodating the groove.
In a further technical scheme, the top surface of the upper die is provided with a groove, the bottom surface of the inner wall of the groove is fixed with a heat conducting fin, the bottom surface of the heat conducting fin is attached to the top opening of the storage groove, and the shell of the hydraulic rod penetrates through four corners of the heat conducting fin.
In a further technical scheme, the inner wall of the groove is inserted with a plugboard, the surface of the plugboard is provided with four ventilation openings, the inner wall of each ventilation opening is fixedly provided with an exhaust fan, and the exhaust end of the exhaust fan faces towards the ejection block.
In a further technical scheme, a connecting port is formed in the center of the top surface of the plugboard, and the connecting port is located on the outer wall of the injection molding port.
In a further technical scheme, through holes are formed in four corners of the inserting plate, and outer walls of the shell of the hydraulic rod are fixed on inner walls of the through holes.
In a further technical scheme, a dust screen is fixedly arranged at the top opening of the ventilation opening.
The beneficial effects of the utility model are as follows:
1. the hydraulic rod, the storage groove and the ejection block are arranged, so that the die positioned on the inner wall of the injection cavity can be withdrawn, the square state of the ejection block is utilized, the die has four-side pushing comprehensiveness, the stability of being demolded is improved, and adhesion is avoided;
2. Through setting up recess, conducting strip, can make the heat of injection molding intracavity portion absorbed by the conducting strip, reduce the heat of injection molding intracavity portion, make things convenient for ejecting piece to promote the drawing of patterns, reduce the adhesion.
Drawings
FIG. 1 is a schematic overall structure of an embodiment of the present utility model;
FIG. 2 is a schematic diagram of an assembly structure of a recess and a board insert according to an embodiment of the present utility model;
FIG. 3 is a schematic side sectional view of an injection cavity, a receiving slot, and an ejector block according to an embodiment of the present utility model;
fig. 4 is a schematic side view of a cross-section of an insert plate and an upper die according to an embodiment of the present utility model.
Reference numerals illustrate:
1. A lower die; 2, an upper die, 3, a convex film block, 4, an injection molding cavity, 5, an injection molding port, 6, a hydraulic rod, 7, a storage groove, 8, an ejection block, 9, a groove, 10, a heat conducting sheet, 11, a plugboard, 12, a through hole, 13, a connecting port, 14, a ventilation opening, 15, an exhaust fan, 16 and a dust screen.
Detailed Description
Embodiments of the present utility model are further described below with reference to the accompanying drawings.
Examples:
As shown in fig. 1-4, a demolding mechanism of an injection molding machine comprises a lower mold 1, an upper mold 2, a convex film block 3, an injection molding cavity 4 and an injection molding opening 5, wherein the upper mold 2 is arranged on the top surface of the lower mold 1, the convex film block 3 is connected with the top surface of the lower mold 1, the injection molding cavity 4 matched with the convex film block 3 is arranged on the bottom surface of the upper mold 2, the injection molding opening 5 communicated with the injection molding cavity 4 is arranged on the top surface of the upper mold 2, a storage groove 7 is arranged on the top surface of the injection molding cavity 4, the storage groove 7 is in a mouth shape, an ejection block 8 is inserted at the bottom end of the inner wall of the storage groove 7, four hydraulic rods 6 opposite to each other are inserted at the top surface of the upper mold 2, the telescopic ends of each hydraulic rod 6 are downwards moved on the inner wall of the storage groove 7, a groove 9 is arranged on the top surface of the upper mold 2, a heat conducting sheet 10 is fixed on the bottom surface of the inner wall of the groove 9, the bottom surface of the heat conducting sheet 10 is attached to the top opening of the storage groove 7, the shell of the hydraulic rod 6 penetrates through four corners of the heat conducting fin 10, the inserting plate 11 is inserted into the inner wall of the groove 9, the connecting port 13 is arranged in the center of the top surface of the inserting plate 11, the connecting port 13 is positioned on the outer wall of the injection molding opening 5, the installation of the inserting plate 11 can be facilitated by arranging the connecting port 13, four ventilation openings 14 are arranged on the surface of the inserting plate 11, the dust screen 16 is fixedly arranged at the top opening of the ventilation openings 14, dust can be prevented from entering the injection molding cavity 4 through the ventilation openings 14, the exhaust fan 15 is fixedly arranged on the inner wall of each ventilation opening 14, the exhaust end face of the exhaust fan 15 faces the ejection block 8, the heat absorption and radiation effect of the heat conducting fin 10 can be improved by arranging the inserting plate 11, the ventilation openings 14 and the exhaust fan 15, the inside of the injection molding cavity 4 can be conveniently and rapidly cooled, the use practicability of the ejection block 8 is improved, the through holes 12 are arranged at the four corners of the inserting plate 11, the outer wall of the housing of the hydraulic rod 6 is fixed to the inner wall of the through hole 12.
The working principle of the technical scheme is as follows:
When the device works, injection molding raw materials are injected into the injection molding cavity 4 through the injection molding opening 5, after injection molding is finished, the air suction fan 15 is driven to perform air suction, in the air suction process, the heat conduction sheet 10 absorbs heat against the groove top of the injection molding cavity 4, then releases heat to the air suction end of the air suction fan 15 to form a heat absorption and release state, and then under the state that the lower die 1 and the upper die 2 are separated, the hydraulic rod 6 is driven, the ejection block 8 stably stretches out of the storage groove 7 and stretches out of the groove top of the injection molding cavity 4, and then the die is outwards pushed out from the injection molding cavity 4.
The foregoing examples merely illustrate specific embodiments of the utility model, which are described in greater detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model.