CN210552806U - Large pitched roof demolding and parting mechanism of injection mold - Google Patents

Abstract

A large inclined top demoulding and parting mechanism of an injection mould comprises an upper compound plate and a lower compound plate, wherein a fixed mould plate and a fixed mould insert are arranged below the upper compound plate, a mould foot, an ejector plate, a straight ejector rod and a slide seat are arranged on the lower compound plate, a slide groove is arranged in the slide seat, a slide block is arranged in the slide groove, a rotating pin is arranged in the slide block, the slide block is connected with the inclined ejector rod through the rotating pin, a movable mould plate is arranged on the mould foot, a movable mould insert is arranged on the movable mould plate, a disc-shaped plastic part is arranged between the movable mould insert and the fixed mould insert, reverse buckles are uniformly distributed on the outer wall of the plastic part, a mounting groove is arranged in the movable mould insert, a straight ejector block is arranged in the mounting groove, an upper inclined guide surface is arranged at the upper end of the straight ejector block, the straight ejector rod penetrates through the movable mould plate and the movable mould insert and is connected with the straight ejector block, a left inclined ejector block and a, the lower inclined guide surface is matched with the upper inclined guide surface, and the inclined ejector rod penetrates through the movable template and the movable die insert to be connected with the inclined ejector block.

Description

Large pitched roof demolding and parting mechanism of injection mold

Technical Field

The utility model relates to an injection mold especially relates to injection mold pushes up drawing of patterns typing mechanism to one side greatly.

Background

When injection mold produced the working of plastics, if the working of plastics is disc structure, and the outer wall equipartition of working of plastics has a plurality of back-offs, prior art sets up a plurality of little kicking blocks to one side usually on injection mold's movable mould board, and a kicking block to one side corresponds a back-off, and the quantity of kicking block to one side is unanimous with back-off quantity to set up a big straight kicking block on the movable mould is inserted, the shortcoming that this structure exists is: the multiple inclined ejecting blocks are matched with the outer wall of the plastic part, so that multiple parting lines (the parting lines are generated on two sides of each inclined ejecting block) are formed on the outer wall of the plastic part subjected to injection molding, and if the plastic part is a transparent or highlight product, the requirement on the appearance of the product is high, and the multiple parting lines seriously influence the appearance of the product; secondly, a plurality of small inclined top block structures are arranged, the structure is complex, and the manufacture is troublesome.

Disclosure of Invention

The utility model aims at overcoming the shortcoming that prior art exists, providing a simple structure, it is convenient to make, reduces the joint line of working of plastics outer wall, guarantees the big oblique top drawing of patterns typing mechanism of injection mold that the working of plastics appearance is pleasing to the eye.

The utility model discloses injection mold pushes up drawing of patterns parting mechanism's technical scheme to one side greatly 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, a fixed mold insert is arranged below the fixed template, mold feet are arranged on the lower compound plate, an ejector plate is arranged on the lower compound plate between the mold feet and is driven by an oil cylinder, a straight ejector rod and a sliding seat are arranged on the ejector plate, a sliding groove is formed in the sliding seat, a sliding block is arranged in the sliding groove, a rotating pin is arranged in the sliding block, the sliding block is connected with an inclined ejector rod through the rotating pin, a movable template is arranged on the mold feet, a movable mold insert is arranged on the movable template, an injection molding disc-shaped plastic part is arranged between the movable mold insert and the fixed mold insert, reverse buckles are uniformly distributed on the outer wall of the plastic part, a mounting groove is formed in the movable mold insert, a straight ejector block is arranged in the mounting groove, an upper inclined guide surface is formed at the upper end of the straight ejector rod, the straight ejector rod penetrates through the movable, the inclined ejector block is matched with the outer wall of the plastic part and the reverse buckle, a lower inclined guide surface is arranged at the lower end of the inclined ejector block and matched with the upper inclined guide surface, and the inclined ejector rod penetrates through the movable die plate and the movable die insert to be connected with the inclined ejector block.

The utility model discloses a large-pitched roof demoulding and parting mechanism of an injection mould, which is mainly characterized in that a mounting groove is arranged in a movable mould insert, a straight ejector block is arranged in the mounting groove, the straight ejector block is propped against the lower end surface of a disc-shaped plastic part, a left inclined ejector block and a right inclined ejector block are arranged above the movable mould insert and the straight ejector block, the left inclined ejector block and the right inclined ejector block cover the whole outer wall surface of the plastic part, one inclined ejector block can be matched with a plurality of back-off buttons of the outer wall of the plastic part, a lower inclined guide surface is arranged at the lower end of the inclined ejector block, an upper inclined guide surface is arranged at the upper end of the straight ejector block, the upper inclined guide surface is matched with the lower inclined guide surface, when the injection-moulded plastic part is pushed upwards, an ejector plate drives a straight ejector rod and a slide seat to move upwards together, the straight ejector rod drives the straight ejector block to move upwards, the slide seat drives a slide seat to move upwards, the slide seat drives a, the straight ejector block pushes the plastic part to be separated from the movable die insert upwards, the left oblique ejector block moves upwards and leftwards gradually, all inverted structures on the left side of the plastic part are separated, the oblique ejector block on the right side moves upwards and rightwards gradually, all inverted structures on the right side of the plastic part are separated, when the oblique ejector blocks on the left side and the right side move outwards, the oblique ejector blocks on the upper oblique guide surface are matched with the oblique guide surface, a gap is formed between the oblique ejector block and the straight ejector block, extrusion and friction between the oblique ejector block and the straight ejector block are avoided, flashing on the surface of the plastic part is avoided, the plastic part is smoothly ejected out of a die, two large oblique ejector block structures on the left side and the right side are opposite to the existing small oblique ejector block structures, two parting lines are only arranged at the middle joint positions of the two oblique ejector blocks, the parting lines on the outer wall of.

The utility model discloses injection mold pushes up drawing of patterns typing mechanism to one side greatly, movable mould board and movable mould insert between set up to one side and push up the guide block, the system has the guiding hole in pushing up the guide block to one side, the guiding hole cooperatees with ejector pin to one side. The inclined ejector guide block plays a role in guiding the inclined upward movement of the inclined ejector rod, and the inclined ejector rod cannot be clamped or abraded during movement.

Drawings

FIG. 1 is a schematic top view of a large pitched roof demolding and parting mechanism of an injection mold of the present invention;

FIG. 2 is a schematic cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is a schematic cross-sectional view taken along line B-B of FIG. 1;

FIG. 4 is an enlarged view of a portion of FIG. 2 at C;

FIG. 5 is a perspective view of the plastic part, the inclined top block and the movable die insert in an exploded state.

Detailed Description

The utility model relates to a large-pitched roof demoulding and parting mechanism of an injection mould, which comprises an upper compound plate and a lower compound plate 1, wherein a fixed mould plate is arranged under the upper compound plate, a fixed mould insert is arranged under the fixed mould plate, mould feet 2 are arranged on the lower compound plate, an ejector plate 3 is arranged on the lower compound plate between the mould feet, the ejector plate is driven by an oil cylinder, a straight ejector rod 4 and a slide seat 5 are arranged on the ejector plate, a slide groove 6 is arranged in the slide seat, a slide block 7 is arranged in the slide groove, a rotating pin 8 is arranged in the slide block, the slide block is connected with a pitched ejector rod 9 through the rotating pin, a movable mould plate 10 is arranged on the mould feet, a movable mould insert 11 is arranged on the movable mould plate, a disc-shaped plastic piece 12 which is formed by injection moulding is arranged between the movable mould insert and the fixed mould insert, back-off buttons 13 are evenly distributed on the outer wall of the movable mould insert 11, a mounting groove 14 is arranged in the movable mould insert 11, a straight ejector block 15 is arranged in the mounting groove, an, the movable die insert 11 is provided with a left inclined ejecting block 17 and a right inclined ejecting block 17, the left inclined ejecting block and the right inclined ejecting block cover the whole outer wall of the plastic piece 12, the inclined ejecting blocks are matched with the outer wall of the plastic piece 12 and the reverse buckle 13, the lower end of each inclined ejecting block is provided with a lower inclined guide surface 18, the lower inclined guide surface is matched with an upper inclined guide surface 16, and the inclined ejector rod 9 penetrates through the movable die plate 10 and the movable die insert 11 to be connected with the inclined ejecting blocks 17. Mainly, a mounting groove 14 is arranged in a movable mould insert 11, a straight ejector block 15 is arranged in the mounting groove and is abutted against the lower end surface of a disc-shaped plastic part 12, a left inclined ejector block 17 and a right inclined ejector block 17 are arranged above the movable mould insert 11 and the straight ejector block 15, the left inclined ejector block and the right inclined ejector block cover the whole outer wall surface of the plastic part 12, one inclined ejector block can be matched with a plurality of back-off buttons 13 on the outer wall of the plastic part 12, a lower inclined guide surface 18 is arranged at the lower end of the inclined ejector block 17, an upper inclined guide surface 16 is arranged at the upper end of the straight ejector block 15 and is matched with the lower inclined guide surface, when the injection-molded plastic part 12 is ejected upwards, an ejector plate 3 drives a straight ejector rod 4 and a sliding seat 5 to move upwards together, the straight ejector rod drives the straight ejector block 15 to move upwards, the sliding seat drives a sliding block 7 to move upwards, the sliding block drives an inclined ejector rod 9 to move upwards through a rotating pin 8, the inclined ejector rod drives the inclined ejector block, the straight ejector block pushes the plastic part 12 to be separated from the movable die insert 11 upwards, the inclined ejector block on the left side gradually upwards and moves leftwards, all the inverted structures on the left side of the plastic part are separated, the inclined ejector block on the right side gradually upwards and moves rightwards, all the inverted structures on the right side of the plastic part are separated, when the inclined ejector blocks 17 on the left side and the right side move outwards, the inclined ejector blocks 17 and the straight ejector block 15 are matched, gaps are formed between the inclined ejector blocks 17 and the straight ejector block 15, extrusion and friction between the inclined ejector blocks and the straight ejector block are avoided, burrs on the surface of the plastic part are avoided, the plastic part is smoothly ejected and demoulded, and compared with the existing multiple small inclined ejector block structures, two parting lines are arranged at the middle joint position of the two inclined ejector blocks, the parting lines on the outer wall of the plastic part are reduced, the appearance of the plastic part is more attractive, the. An inclined top guide block 19 is arranged between the movable die plate 10 and the movable die insert 11, a guide hole 20 is formed in the inclined top guide block, and the guide hole is matched with the inclined ejector rod 9. The inclined top guide block 19 is arranged to guide the inclined upward movement of the inclined top rod 9, so that the inclined top rod cannot be clamped or abraded when moving.

Claims (2)

1. Big oblique top drawing of patterns typing mechanism of injection mold, including compound board and lower compound board (1), set up the fixed die plate under the last compound board, set up the cover half insert under the fixed die plate, set up moulding foot (2) on the compound board down, set up thimble board (3) on the lower compound board between the moulding foot, the thimble board drives through the hydro-cylinder, set up straight ejector pin (4) and slide (5) on the thimble board, the system has spout (6) in the slide, set up slider (7) in the spout, set up commentaries on classics round pin (8) in the slider, the slider is through commentaries on classics round pin connection oblique ejector pin (9), set up movable mould board (10) on the moulding foot, set up movable mould insert (11) on the movable mould board, there is injection moulding's disc working of plastics (12) between movable mould insert and the cover half insert, the outer wall: the novel plastic part forming machine is characterized in that a mounting groove (14) is formed in the movable die insert (11), a straight ejector block (15) is arranged in the mounting groove, an upper inclined guide surface (16) is formed at the upper end of the straight ejector block, a straight ejector rod (4) penetrates through the movable die plate (10) and the movable die insert (11) to be connected with the straight ejector block, a left inclined ejector block and a right inclined ejector block (17) are arranged on the movable die insert (11), the left inclined ejector block and the right inclined ejector block cover the whole outer wall of the plastic part (12), the inclined ejector block is matched with the outer wall of the plastic part (12) and an inverted buckle (13), a lower inclined guide surface (18) is formed at the lower end of the inclined ejector block, the lower inclined guide surface is matched with the upper inclined guide surface (16), and an inclined ejector rod (9) penetrates through.

2. The large pitched roof demolding and parting mechanism of an injection mold as claimed in claim 1, wherein: an inclined ejection guide block (19) is arranged between the movable die plate (10) and the movable die insert (11), a guide hole (20) is formed in the inclined ejection guide block, and the guide hole is matched with the inclined ejector rod (9).

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