CN218256509U - Direct-ejection and oblique-pushing combined core pulling mechanism of injection mold - Google Patents

Abstract

The direct-ejection and oblique-pushing combined core pulling mechanism of the injection mold comprises an upper compound plate and a lower compound plate, wherein a fixed template is arranged below the upper compound plate, a mold foot, an upper ejector plate, a lower ejector plate and an ejector pin are arranged on the lower compound plate, a movable mold insert is arranged on the movable template arranged on the mold foot, a plastic piece is arranged between the movable mold insert and the fixed template, one side of the plastic piece is provided with an arc edge, a flanging is arranged on the arc edge, a clamping hole is formed in the flanging, an oblique ejector block is arranged in the movable mold insert, a transverse guide rod and a clamping convex block are arranged on the side wall of the oblique ejector block, the clamping convex block is matched with the clamping hole of the plastic piece, the lower part of the oblique ejector block is connected with a short oblique guide rod, a short oblique guide hole is formed in the movable mold insert, the short oblique guide rod is matched with the short oblique guide hole, a straight ejector block is arranged on the outer wall of the flanging of the plastic piece on the movable template, the straight ejector block is connected with the straight ejector pin, the lower head of the straight ejector rod is fixed with the upper and the lower ejector plate, a transverse perforation is matched with the transverse guide rod of the oblique ejector block.

Description

Direct-ejection and oblique-push combined core-pulling mechanism of injection mold

Technical Field

The utility model relates to an injection mold especially relates to injection mold directly pushes up oblique combination formula mechanism of loosing core.

Background

When injection mold produces the working of plastics, if the lateral wall of working of plastics is the circular arc limit, make decurrent turn-ups on the circular arc limit, and the system has the buckle hole in the turn-ups, prior art adopts oblique kicking block and the cooperation of this turn-ups's inner wall usually, at last, set up the slide on the thimble board down, the slider, oblique ejector pin structure, oblique ejector pin passes movable mould board and drives oblique kicking block, when upwards ejecting with the working of plastics, oblique kicking block moves to the inboard gradually and deviates from turn-ups and buckle hole structure, if distribute in the movable mould straight top, oblique top, cooling water route isotructure, and do not have enough spatial arrangement oblique ejector pin structure, then can't deviate from turn-ups and buckle hole structure of working of plastics.

Disclosure of Invention

The utility model aims at overcoming the shortcoming that prior art exists, providing one kind and occupying the mould inner space few, conveniently arrange ejecting structure, the injection mold of buckle hole structure directly pushes up oblique combination formula mechanism of loosing core in the working of plastics that is favorable to deviating from.

The utility model discloses injection mold pushes away combination formula mechanism of loosing core to one side directly's technical scheme is: the plastic part injection molding device comprises an upper compound plate and a lower compound plate, wherein a fixed template is arranged below the upper compound plate, mold pins are arranged on the lower compound plate, an upper thimble plate, a lower thimble plate and thimbles are arranged on the lower compound plate between the mold pins, a movable template is arranged on the mold pins, a movable mold insert is arranged on the movable template, an injection molding plastic part is arranged between the movable mold insert and the fixed template, one side of the plastic part is provided with an arc edge, a downward flanging is arranged on the arc edge, a buckling hole is formed in the flanging, an inclined ejector block is arranged on the inner wall of the flanging, which is positioned on the plastic part, in the movable mold insert, the side wall of the inclined ejector block is provided with a transverse guide rod and a buckling lug, the buckling lug is matched with the buckling hole of the plastic part, the lower part of the inclined ejector block is connected with a short inclined guide rod, a short inclined guide hole is formed in the movable mold insert, the short inclined guide rod is matched with the short inclined ejector block, a straight ejector block is arranged on the outer wall of the flanging of the plastic part, the straight ejector block is connected with the straight ejector rod, the lower head of the straight ejector rod is fixed with the upper and the lower end of the straight ejector plate, a transverse through hole is matched with the straight ejector block, and the transverse guide rod of the straight ejector block.

The utility model discloses an injection mold pushes away combination formula mechanism of loosing core to one side directly, after working of plastics injection moulding, the mould is from die plate and movable mould between inserting, then drive by power, lower thimble board rebound, on, lower thimble board drives thimble and straight ejector pin rebound, the thimble promotes injection moulding's working of plastics rebound, straight ejector pin drives straight ejector block rebound, straight ejector block is through the horizontal guide arm cooperation of horizontal perforation and oblique ejector block, drive horizontal guide arm rebound, the buckle lug of horizontal guide arm lateral wall is along with the buckle hole synchronous motion of working of plastics, and the short oblique guide arm under the oblique ejector block is under the guide effect of the short oblique guide hole that the movable mould inserted, make oblique ejector block along oblique guide arm of section and short oblique guide hole's incline direction and horizontal guide arm along the direction inwardly movement of horizontal perforation when the rebound, the buckle hole that the buckle lug of messenger oblique ejector block deviates from, accomplish the back of loosing core, at last by the thimble with the drawing of patterns of plastics. This scheme injection mold pushes up combination formula mechanism of loosing core directly to one side, when ejecting the working of plastics, straight ejector pin drives straight kicking block, horizontal perforation and the horizontal guide arm cooperation of straight kicking block drive oblique kicking block and move, short oblique guide hole cooperation in inserting by the short oblique guide arm of oblique kicking block and movable mould again, realize the buckle hole that the working of plastics was deviate from in the slope rebound, long oblique ejector pin structure has been cancelled, it is few to occupy the inside horizontal space of mould, other ejecting structure and cooling water path structure are conveniently arranged, and be favorable to the interior buckle hole structure of the working of plastics that deviate from.

The utility model discloses injection mold pushes away combination formula mechanism of loosing core to one side directly, the lateral wall system of oblique kicking block have two horizontal guide arms, the system has two horizontal perforation in the corresponding straight kicking block. The two transverse guide rods are matched with the two transverse through holes, so that the inclined ejector block moves more stably and reliably when moving upwards and inwards.

Drawings

FIG. 1 is a schematic structural view of a straight-pushing and inclined-pushing combined core-pulling mechanism of an injection mold of the present invention;

FIG. 2 is a perspective view of the straight ejector rod, the straight ejector block, the inclined ejector block and the short inclined guide rod in a matched state;

FIG. 3 is a perspective view of the disassembled state of the straight ejector rod, the straight ejector block, the inclined ejector block and the short inclined guide rod;

fig. 4 is a perspective view of a plastic part.

Detailed Description

The utility model relates to an injection mold pushes up inclined push combination formula mechanism of loosing core directly, as shown in fig. 1-fig. 4, including last compoboard and lower compoboard 1, set up the fixed die plate under last compoboard, set up mould foot 2 on the compound board down, set up thimble board 3 on the lower compoboard between the mould foot, thimble board 4 and thimble 5 down, set up movable mould board 6 on the mould foot, set up the movable mould on the movable mould board and insert 7, the movable mould inserts and has injection moulding's working of plastics 8 between the fixed die plate, one side system at the working of plastics has circular arc limit 9, the last decurrent turn-ups 10 that is made of circular arc limit, the system has buckle hole 11 in the turn-ups, its characterized in that: the inner wall of a flanging 10 of a plastic part 8 in the movable die insert 7 is provided with an inclined ejector block 12, the side wall of the inclined ejector block is provided with a transverse guide rod 13 and a buckle bump 14, the buckle bump is matched with a buckle hole 11 of the plastic part 8, the lower part of the inclined ejector block is connected with a short inclined guide rod 15, the movable die insert 7 is provided with a short inclined guide hole, the short inclined guide rod is matched with the short inclined guide hole, the outer wall of the flanging 10 of the plastic part 8 on the movable die plate 6 is provided with a straight ejector block 16, the straight ejector block is connected with a straight ejector rod 17, the lower end of the straight ejector rod is fixed with an upper ejector pin plate 3 and a lower ejector pin plate 4, the straight ejector block is provided with a transverse perforation 18, and the transverse perforation is matched with the transverse guide rod 13 of the inclined ejector block 12. After the plastic part 8 is injection molded, the mold is opened from a position between the fixed mold plate and the movable mold insert 7, then the upper ejector plate 3 and the lower ejector plate 4 are driven by power to move upwards, the upper ejector plate and the lower ejector plate drive the ejector pin 5 and the straight ejector rod 17 to move upwards, the ejector pin pushes the injection molded plastic part 8 to move upwards, the straight ejector rod drives the straight ejector block 16 to move upwards, the straight ejector block is matched with the transverse guide rod 13 of the inclined ejector block 12 through the transverse through hole 18 to drive the transverse guide rod to move upwards, the buckling lug 14 on the side wall of the transverse guide rod moves synchronously along with the buckling hole 11 of the plastic part, the short inclined guide rod 15 below the inclined ejector block 12 is guided by the short inclined guide hole of the movable mold insert 7, the inclined ejector block moves inwards along the inclined direction of the section inclined guide rod 15 and the short inclined guide hole and the direction of the transverse guide rod 13 along the transverse through hole 18 while moving upwards, the buckling lug 14 of the inclined ejector block is separated from the buckling hole 11 of the plastic part 8, and after the core-pulling and demolding is finished. This scheme injection mold pushes up combination formula mechanism of loosing core directly to one side, when ejecting working of plastics 8, straight ejector pin 17 drives straight kicking block 16, the horizontal perforation 18 and the horizontal guide arm 13 cooperation of straight kicking block drive oblique kicking block 12 and move, the short oblique guide arm 15 and the movable mould of the oblique kicking block insert the short oblique guide hole cooperation in 7 again, realize the buckle hole 11 that the working of plastics 8 was deviate from in the slope rebound, long oblique ejector pin structure has been cancelled, it is few to occupy the inside horizontal space of mould, other ejecting structure and cooling waterway structure are conveniently arranged, and be favorable to the interior buckle hole structure of the working of plastics that deviate from. The side wall of the inclined ejector block 12 is provided with two transverse guide rods 13, and two transverse through holes 18 are formed in the corresponding straight ejector block 16. The two transverse guide rods 13 are matched with the two transverse through holes 18, so that the action of the inclined ejector block 12 is more stable and reliable when the inclined ejector block moves upwards and inwards.

Claims (2)

1. Injection mold pushes up combination formula mechanism of loosing core directly to one side, including compound board and lower compound board (1), set up the fixed die plate under last compound board, set up on the compound board down and mould foot (2), set up thimble board (3) on the lower compound board between the mould foot, thimble board (4) and thimble (5) down, set up movable mould board (6) on the mould foot, it inserts (7) to set up the movable mould on the movable mould board, there is injection moulding's working of plastics (8) between movable mould insert and the fixed die plate, one side system at the working of plastics has circular arc limit (9), circular arc is epaxial to be made decurrent turn-ups (10), the system has buckle hole (11) in the turn-ups, its characterized in that: the novel plastic part flanging die is characterized in that an inclined ejector block (12) is arranged on the inner wall of a flanging (10) of a plastic part (8) in a movable die insert (7), a transverse guide rod (13) and a buckling lug (14) are formed on the side wall of the inclined ejector block, the buckling lug is matched with a buckling hole (11) of the plastic part (8), a short inclined guide rod (15) is connected to the lower portion of the inclined ejector block, a short inclined guide hole is formed in the movable die insert (7) and matched with the short inclined guide hole, a straight ejector block (16) is arranged on the outer wall of the flanging (10) of the plastic part (8) on a movable die plate (6) and connected with a straight ejector rod (17), the lower end of the straight ejector rod is fixed with an upper ejector plate and a lower ejector plate (3) and (4), a transverse through hole (18) is formed in the straight ejector block, and the transverse through hole is matched with the transverse guide rod (13) of the inclined ejector block (12).

2. The injection mold straight-pushing and inclined-pushing combined core-pulling mechanism as claimed in claim 1, characterized in that: the side wall of the inclined ejector block (12) is provided with two transverse guide rods (13), and two transverse through holes (18) are formed in the corresponding straight ejector blocks (16).

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