CN213035213U - Large and small sliding block combined type oblique side-pulling mechanism of injection mold - Google Patents

Abstract

A large and small slide block combined type oblique side-drawing mechanism of an injection mold comprises an upper compound plate and a lower compound plate, wherein a fixed template is arranged below the upper compound plate, an oblique guide post is arranged in the fixed template, a through hole is formed in the lower compound plate, mold feet are arranged on the lower compound plate, an upper thimble plate, a lower thimble plate and a thimble are arranged on the lower compound plate between the mold feet, a mandril of an injection molding machine penetrates through the through hole to be contacted with the lower thimble plate, a movable template is arranged on the mold feet, an injection molded plastic piece is arranged between the movable template and the fixed template, a flanging is arranged at one side of the plastic piece, an oblique convex column is arranged at the lower end of the plastic piece, an oblique drawing hole is arranged at the position of the movable template corresponding to the convex column, a small slide block is arranged in the oblique drawing hole, the upper end of the small slide block is matched with the convex column, an oblique guide rail is arranged at the lower end of the small slide block, a side drawing groove is arranged at one side of the movable template, an oblique guide hole is formed in the large sliding block and matched with the oblique guide post.

Description

Large and small sliding block combined type oblique side-pulling mechanism of injection mold

Technical Field

The utility model relates to an injection mold especially relates to the big, little slider combination formula slant side of injection mold and takes out the mechanism.

Background

In injection mold, if injection moulding's working of plastics lower extreme system has the projection of slope, the mode of adopting the oblique top is ejecting the working of plastics along the incline direction of this projection usually, if there is vertical turn-ups in one side system of working of plastics, the turn-ups then can be ejecting blockking to the slope, leads to the working of plastics can't carry out the oblique top, consequently can only be before the working of plastics is ejecting, looses the core earlier to the projection position, again with the ejecting drawing of patterns of working of plastics. In the prior art, a mounting groove is usually formed in a lower opening of a movable mould plate, an oil cylinder is mounted in the mounting groove, the inclination directions of the oil cylinder and a convex column are consistent, a piston rod of the oil cylinder is connected with a sliding block, the sliding block is matched with the convex column, the sliding block is driven by the oil cylinder to firstly draw out the convex column and then push out a plastic part, core pulling and mould opening are required for the structure, core pulling and mould opening actions cannot be carried out simultaneously, the production efficiency is reduced, the oil cylinder structure is mounted, the size of a mould is increased, the structure is required to be mounted in an injection molding; in addition, a spring is arranged in the movable mould plate, the spring pushes the sliding block to loose the core, the spring and the sliding block are simple in structure, the spring is easy to fatigue and soften after being used for a long time, the original effect cannot be achieved, and the service life is short.

Disclosure of Invention

The utility model aims at overcoming the shortcoming that prior art exists, providing a simple structure, the drawing of patterns is smooth, reduces the mould volume, improves production efficiency's big, little slider combination formula slant side-draw mechanism.

The utility model discloses the big, little slider combination formula slant side of injection mold takes out technical scheme of mechanism is: the injection molding machine comprises an upper compound plate and a lower compound plate, wherein a fixed template is arranged below the upper compound plate, an inclined guide post is arranged in the fixed template, a through hole is formed in the lower compound plate, mold feet are arranged on the lower compound plate, an upper thimble plate, a lower thimble plate and an ejector pin are arranged on the lower compound plate between the mold feet, the ejector pin of the injection molding machine penetrates through the through hole to be contacted with the lower thimble plate, a movable template is arranged on the mold feet, an injection molded plastic piece is arranged between the movable template and the fixed template, one side of the plastic piece is provided with a flanging, the lower end of the plastic piece is provided with an inclined convex column, an inclined drawing hole is formed at the corresponding position of the movable template and the convex column, the inclined angle of the inclined drawing hole is consistent with the inclined angle of the convex column, a small slide block is arranged in the inclined drawing hole, the upper end of the small slide block is matched with the convex column, an inclined guide rail is formed at the lower end of the small slide block, a side drawing groove is formed, the oblique guide groove is matched with the oblique guide rail of the small sliding block, and an oblique guide hole is formed in the large sliding block and is matched with the oblique guide pillar.

The utility model discloses an injection mold is big, little slider combination formula slant side is taken out mechanism, after working of plastics injection moulding, the lower double plate drives the mould foot, go up the thimble board, lower thimble board, the thimble, the movable mould board, big slider, little slider and working of plastics are backward moved together, and go up the double plate, fixed die plate and oblique guide pillar keep motionless, the mould is from fixed die plate and movable mould board department die sinking, when big slider backward moves, the oblique guide hole and the cooperation of oblique guide pillar of big slider, make big slider earlier to outwards remove along the side draw-out groove, and the oblique guide groove cooperation of oblique guide groove on the big slider and little slider, the projection of taking out gradually of the oblique direction of drawing-out hole in the slope direction of messenger's little slider along oblique guide groove and the movable mould board, last by the ejector pin drive of injection molding machine, lower thimble board and thimble will accomplish the ejecting drawing core ejecting drawing of a core ejecting drawing of working of plastics. This scheme injection mold is big, the modular slant side of little slider is taken out and is constructed, utilizes oblique guide pillar, big slider, little slider combination formula linkage to be loosed core, looses core to the projection of working of plastics lower extreme slope, and simple structure occupies that the mould is small, reduces the development cost of mould, looses core through the linkage in the mould die sinking, does not occupy mould die sinking time, has improved production efficiency.

Drawings

FIG. 1 is a schematic view of the mold closing state structure of the large and small slide block combined oblique side-pulling mechanism of the injection mold of the present invention;

FIG. 2 is the schematic view of the mold opening state structure of the large and small slide block combined oblique side-pulling mechanism of the injection mold.

Detailed Description

The utility model relates to a large and small slide block combined oblique side drawing mechanism of an injection mold, as shown in figure 1-figure 2, comprising an upper compound plate 1 and a lower compound plate 2, wherein the lower part of the upper compound plate is provided with a fixed template 3, the fixed template is provided with an oblique guide post 4, the lower compound plate is provided with a perforation 5, the lower compound plate is provided with a mold foot 6, the lower compound plate between the mold feet is provided with an upper thimble plate 7, a lower thimble plate 8 and a thimble 9, a thimble 10 of the injection molding machine contacts with the lower thimble plate through the perforation 5, the mold foot 6 is provided with a movable template 11, an injection molded plastic piece 12 is arranged between the movable template and the fixed template 3, one side of the plastic piece is provided with a flanging 13, the lower end of the plastic piece is provided with an oblique convex column 14, the corresponding position of the movable template 11 and the convex column 14 is provided with an oblique drawing hole 15, the inclination angle of the oblique drawing hole is consistent with the inclination angle of the convex column, a small slide block 16 is arranged in, the lower end of the small slide block is provided with an inclined guide rail 17, one side of the movable mould plate 11 is provided with a side drawing groove 18, a large slide block 19 is arranged in the side drawing groove, the bottom of the large slide block is in sliding fit with the side drawing groove, one side of the large slide block is provided with an inclined guide groove 20, the inclined guide groove is matched with the inclined guide rail 17 of the small slide block 16, and the large slide block is provided with an inclined guide hole 21 which is matched with the inclined guide pillar 4. After the plastic part 12 is injection molded, the lower compound plate 2 drives the mold legs 6, the upper ejector plate 7, the lower ejector plate 8, the ejector pins 9, the movable mold plate 11, the large slide block 19, the small slide block 16 and the plastic part 12 to move backwards together, the upper compound plate 1, the fixed mold plate 3 and the inclined guide posts 4 are kept still, the mold is opened from the fixed mold plate and the movable mold plate, the inclined guide holes 21 of the large slide block are matched with the inclined guide posts 4 while the large slide block 19 moves backwards, so that the large slide block moves outwards along the side drawing grooves 18 firstly, the inclined guide grooves 20 on the large slide block are matched with the inclined guide rails 17 of the small slide block 16, the small slide block gradually draws out the convex posts 14 of the plastic part 12 along the inclined direction of the inclined guide grooves 20 and the inclined direction of the inclined drawing holes 15 in the movable mold plate 11, and finally the ejector pins 10 of the injection molding machine drives the upper ejector plates 7, the lower ejector plates 8 and the ejector. This scheme injection mold is big, the modular slant side of little slider is taken out and is constructed, utilizes oblique guide pillar 4, big slider 19, 16 combination formula linkages of little slider to loose core, looses core to projection 14 of the 12 lower extreme slopes of working of plastics, and simple structure occupies that the mould is small, reduces the development cost of mould, looses core through the linkage in the mould die sinking, does not occupy the mould die sinking time, has improved production efficiency.

Claims (1)

1. Injection mold is big, the modular slant side of little slider is taken out and is constructed, including compound board (1) and lower compound board (2), set up fixed die plate (3) under the last compound board, set up oblique guide pillar (4) in the fixed die plate, it has perforation (5) to open in the compound board down, set up on the compound board down mould foot (6), set up thimble board (7) on the lower compound board between the mould foot, thimble board (8) and thimble (9) down, ejector pin (10) of injection molding machine pass perforation (5) and contact with thimble board down, set up movable mould board (11) on mould foot (6), there is injection moulding's working of plastics (12) between movable mould board and fixed die plate (3), one side system of working of plastics has turn-ups (13), the lower extreme system of working of plastics has oblique projection (14), its characterized in that: the inclined guide rail type sliding die is characterized in that an inclined drawing hole (15) is formed in the corresponding position of the movable die plate (11) and the convex column (14), the inclined angle of the inclined drawing hole is consistent with that of the convex column, a small sliding block (16) is arranged in the inclined drawing hole, the upper end of the small sliding block is matched with the convex column (14), an inclined guide rail (17) is formed at the lower end of the small sliding block, a side drawing groove (18) is formed in one side of the movable die plate (11), a large sliding block (19) is arranged in the side drawing groove, the bottom of the large sliding block is in sliding fit with the side drawing groove, an inclined guide groove (20) is formed in one side of the large sliding block, the inclined guide groove is matched with the inclined guide rail (17) of the small sliding block (16).

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