CN215512058U - Injection mold for plastic intake manifold of precise automobile engine - Google Patents

Abstract

The injection mold comprises a cavity frame and a cavity insert, a core plate and a core insert, wherein one side of the core plate is provided with a large outer slide block which is matched with the core insert and the cavity insert to form a mold cavity; a fixed hole fixing block and a fixed hole core rod are arranged in the large outer sliding block, and the fixed hole core rod is matched with the fixed hole; the outer wall of the core plate is obliquely provided with a guide sliding base, a guide sliding block and a port core block, and the port core block is matched with the port; the core insert is provided with an inclined drawing base and an inclined drawing block, a flaring drawing core rod and a gas pipe drawing core rod are arranged in the inclined drawing block, the flaring drawing core rod is matched with the flaring, and the gas pipe drawing core rod is matched with the gas pipe; the core plate is provided with a flat slide block and an included angle drawing block, and the included angle drawing block penetrates through the core insert to be matched with the included angle a.

Description

Injection mold for plastic intake manifold of precise automobile engine

Technical Field

The utility model relates to an injection mold for a plastic intake manifold of a precise automobile engine, and belongs to the field of injection molds.

Background

Adopt injection mold to produce plastic products, for example automobile engine's plastics air intake manifold, according to product shape and structural analysis, set up corresponding post hole in the front side of air intake manifold body, be connected by the bottom plate between each post hole, set up the solid hole on the outer wall of bottom plate and post hole, simultaneously, set up the port in the one end of air intake manifold body, still be equipped with the trachea on the port, therefore, when designing processing mold, the shaping structure of mould had both to be considered, the demoulding structure after the shaping of above-mentioned each characteristic is realized again smoothly, each characteristic demoulding direction is inconsistent (multi-angle), the structural design degree of difficulty is big, simultaneously, form the contained angle between port and bottom plate, also need the drawing of patterns, whole mould demoulding structure is complicated, the drawing of patterns direction is many, still need control the whole volume of mould, make it be fit for medium and small-size injection molding machine processing, save the cost.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provides a plastic intake manifold injection mold of a precise automobile engine, which realizes multi-angle slide core pulling by moving an inclined guide post along an inclined plane of a slide way and combining a mode of driving a slide block to move by an oil cylinder, and solves the problems of difficult mold release caused by complex structure, multiple core pulling slide blocks, inconsistent moving directions and the like of an automobile intake manifold.

The utility model discloses a technical scheme of an injection mold for a plastic intake manifold of a precise automobile engine, which comprises the following steps: including compound board and lower compound board on the mould, connect runner plate and runner fixed plate under going up the compound board, install the die cavity frame under the runner fixed plate, set up the die cavity in the die cavity frame and insert, install the die leg on the compound board down, install the core board on the die leg, install the core on the core board and insert, core board one side set up big outer slider, big outer slider and core insert and the cooperation of die cavity insert and constitute the die cavity, there are injection moulding's air intake manifold in the die cavity, set up post hole and bottom plate on the air intake manifold, set up the solid hole on the outer wall of bottom plate and post hole, the one end of air intake manifold sets up the port, is equipped with the trachea on the port, tracheal outer wall system has the flaring, and the crossing department of trachea and port forms contained angle a, its characterized in that: a column hole core rod is arranged in the cavity insert and extends out of the cavity insert to be matched with the column hole; a fixed hole fixing block corresponding to the fixed hole is arranged in the large outer sliding block, a fixed hole core rod is connected below the fixed hole fixing block and matched with the fixed hole, a fixed hole spring abutting against the fixed hole fixing block is arranged in the large outer sliding block, a clamping groove is arranged on the fixed hole fixing block, a drag hook is connected below the cavity insert and matched with the clamping groove, an outer sliding oil cylinder is arranged on the outer wall of the core plate and drives the large outer sliding block to slide outwards; a slide guide base is obliquely arranged on the outer wall of the core plate at the side of the port, a slide guide groove is formed in the slide guide base, a slide guide block is arranged on the slide guide groove, the front end of the slide guide block is connected with a port core block, the port core block is matched with the port, a first oblique guide hole is formed in the slide guide block, a first oblique guide pillar is connected below the cavity frame, the first oblique guide pillar is matched with the first oblique guide hole, a compression spring is arranged at the outer end of the slide guide base, a connecting rod is arranged in the compression spring, and the connecting rod is connected with the slide guide block; an inclined drawing base is arranged on a core insert on the side of an air pipe, a stop block is arranged at the front end of the inclined drawing base, an inclined drawing chute is arranged on the inclined drawing base, an inclined drawing block is connected onto the inclined drawing chute, a small fixed block is arranged in the inclined drawing block, a flaring drawing rod is connected onto the small fixed block, the flaring drawing rod is matched with a flaring, an air pipe drawing rod is connected onto the inclined drawing block, the air pipe drawing rod penetrates through the flaring drawing rod to be matched with the air pipe, a forced release pressure spring is arranged between the stop block and the inclined drawing block, a second inclined guide hole is formed in the inclined drawing block, a locking module is arranged in a cavity insert, the locking module is matched with the inclined drawing block, a second inclined guide rod is connected below the locking module, and the second inclined guide rod is matched with the second inclined guide hole; and a flat sliding block is arranged on the core plate corresponding to the included angle a, an inclined sliding groove is formed at the front end of the flat sliding block, an included angle drawing block is connected to the inclined sliding groove and penetrates through the core insert to be matched with the included angle a, a third inclined guide hole is formed in the flat sliding block, an inclined wedge block is connected to the lower portion of the cavity frame, a third inclined guide rod is connected to the lower portion of the inclined wedge block, and the third inclined guide rod is matched with the third inclined guide hole.

According to the injection mold for the plastic intake manifold of the precise automobile engine, during demolding, the mold core part of the mold is driven by power to move downwards and is opened with the mold cavity part, during the mold opening process, the intake manifold moves along with the mold core part, the core rod of the column hole is not moved, the column hole is directly pulled out for demolding, the port, the air pipe and the included angle a also perform core pulling action at the same time, the first inclined guide pillar drives the guide sliding block to perform core pulling outward sliding on the guide sliding base, the guide sliding block drives the port core block to be pulled out from the port, and the compression spring plays a role in assisting core pulling; the second inclined guide rod drives the inclined pulling block to slide outwards on the inclined pulling base, the inclined pulling block drives the air pipe core pulling rod to directly pull the core from the air pipe, and meanwhile, the flaring core pulling rod is driven to forcibly pull the core from the flaring under the action of the forced release pressure spring; the third inclined guide rod drives the flat sliding block to slide outwards, and the flat sliding block drives the included angle drawing block to slide outwards and downwards in the inclined sliding groove to draw out the core from the included angle a; and then, the outer sliding oil cylinder drives the large outer sliding block to slide outwards, the large outer sliding block drives the clamping groove on the fixed hole fixing block to be separated from the draw hook, and the fixed hole core is driven to automatically bounce upwards under the action of the fixed hole spring and is drawn out from the fixed hole, so that the core pulling is completed, and the air inlet manifold is pushed out of the mold by the mold ejection structure. The whole set of mould of this scheme design is compact, has overcome the difficulty that traditional mould multi-angle, multi-direction existence of loosing core, realizes the smooth drawing of patterns of product, improves production efficiency and product quality.

Drawings

FIG. 1 is a schematic illustration of a post hole and hole-securing demolding structure of the present invention;

FIG. 2 is a schematic view of the gas tube and angle stripping configuration of the present invention;

FIG. 3 is a schematic view of a port ejection configuration of the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 1 at A;

FIG. 5 is a partial enlarged view of FIG. 2 at B;

FIG. 6 is a schematic view of the port of the present invention in cooperation with a gas tube stripping structure;

FIG. 7 is a schematic view of the intake manifold of the present invention.

Detailed Description

The utility model relates to a precise injection mold for a plastic intake manifold of an automobile engine, which comprises an upper compound plate 1 and a lower compound plate 2, wherein the lower part of the upper compound plate is connected with a runner plate 3 and a runner fixing plate 4, the lower part of the runner fixing plate is provided with a cavity frame 5, a cavity insert 6 is arranged in the cavity frame, the lower compound plate 2 is provided with a mold foot 7, the mold foot is provided with a core plate 8, the core plate is provided with a core insert 9, one side of the core plate 8 is provided with a large outer slide block 16, the core insert 9 and the cavity insert 6 are matched to form a mold cavity, the mold cavity is internally provided with an injection molded intake manifold 10, the intake manifold 10 is provided with a column hole 11 and a bottom plate 12, the outer walls of the bottom plate and the column hole are provided with a fixed hole 13, one end of the intake manifold is provided with a port 14, the port is provided with an air pipe 15, the outer wall of the air pipe 15 is provided with a flared opening 151, the intersection of the air pipe 15 and the port 14 forms an included angle a, wherein the content of the first and second substances,

a column hole core rod 20 is arranged in the cavity insert 6, and the column hole core rod 20 extends out of the cavity insert to be matched with the column hole 11;

a fixed hole fixing block 21 corresponding to the fixed hole 12 is arranged in the large outer sliding block 16, a fixed hole core rod 22 is connected below the fixed hole fixing block and is matched with the fixed hole 13, a fixed hole spring 23 which is propped against the fixed hole fixing block is arranged in the large outer sliding block, a clamping groove 24 is arranged on the fixed hole fixing block, a drag hook 25 is connected below the cavity insert 6, the drag hook 25 is matched with the clamping groove 24, an outer sliding oil cylinder 26 is arranged on the outer wall of the core plate 8, and the outer sliding oil cylinder drives the large outer sliding block 16 to slide outwards;

a slide guide base 30 is obliquely arranged on the outer wall of the core plate 8 at the side of the port 14, a slide guide groove 31 is formed in the slide guide base, a slide guide block 32 is arranged on the slide guide groove, the front end of the slide guide block is connected with a port core block 33, the port core block is matched with the port 14, a first oblique guide hole 34 is formed in the slide guide block, a first oblique guide pillar 35 is connected below the cavity frame 5, the first oblique guide pillar 35 is matched with the first oblique guide hole 34, a compression spring 36 is arranged at the outer end of the slide guide base 30, a connecting rod 37 is arranged in the compression spring, and the connecting rod 37 is connected with the slide guide block 32;

an inclined drawing base 40 is arranged on a core insert 9 on the side of an air pipe 15, a stop block 41 is arranged at the front end of the inclined drawing base, an inclined drawing chute 42 is arranged on the inclined drawing base, an inclined drawing block 43 is connected on the inclined drawing chute, a small fixed block 44 is arranged in the inclined drawing block, a flaring drawing rod 45 is connected on the small fixed block, the flaring drawing rod 45 is matched with a flaring 151, an air pipe drawing rod 46 is connected on the inclined drawing block, the air pipe drawing rod 46 penetrates through the flaring drawing rod 45 to be matched with the air pipe 15, a forced release pressure spring 47 is arranged between the stop block 41 and the inclined drawing block 43, a second inclined guide hole 48 is arranged in the inclined drawing block 43, a locking module 49 is arranged in a cavity insert 6, the locking module 49 is matched with the inclined drawing block 43, a second inclined guide rod 491 is connected below the locking module, and the second inclined guide rod 491 is matched with the second inclined guide hole 48;

the core plate 8 corresponding to the included angle a is provided with a flat slide block 50, the front end of the flat slide block is provided with an inclined slide groove 51, the inclined slide groove 51 is connected with an included angle drawing block 52, the included angle drawing block 52 penetrates through the core insert 9 to be matched with the included angle a, the flat slide block 50 is provided with a third inclined guide hole 53, the lower part of the cavity frame 5 is connected with an inclined wedge block 54, the lower part of the inclined wedge block is connected with a third inclined guide rod 55, and the third inclined guide rod 55 is matched with the third inclined guide hole 53.

During demolding, the mold core part of the mold is driven by power to move downwards to open the mold with the cavity part, in the mold opening process, the air inlet manifold 10 moves along with the mold core part, the column hole core rod 20 is not moved, the column hole 11 is directly pulled out for demolding, in addition, the port 14, the air pipe 15 and the included angle a also perform core pulling action at the same time, the first inclined guide column 35 drives the guide sliding block 32 to perform core pulling and outward sliding on the guide sliding base 30, the guide sliding block 32 drives the port core block 33 to be pulled out from the port 14, and the compression spring 36 plays a role in assisting core pulling; the second inclined guide rod 491 drives the inclined pulling block 43 to slide outwards on the inclined pulling base 40, the inclined pulling block 43 drives the air pipe core pulling rod 46 to directly pull the core from the air pipe 15, and simultaneously drives the flaring core pulling rod 45 to forcibly pull the core from the flaring 151 under the action of the forced release compression spring 47; the third inclined guide rod 55 drives the horizontal sliding block 50 to slide outwards, and the horizontal sliding block 50 drives the included angle core pulling block 52 to slide outwards and downwards in the inclined sliding groove 51 to pull out the core from the included angle a; then, the outer sliding oil cylinder 26 drives the large outer sliding block 16 to slide outwards, the large outer sliding block 16 drives the clamping groove 24 on the fixed hole fixing block 21 to be separated from the draw hook 25, and the fixed hole core 22 is driven to automatically bounce upwards under the action of the fixed hole spring 23 and is drawn out from the fixed hole 12, so that the core pulling is completed, and the air inlet manifold is pushed out of the mold by the mold ejection structure. The whole set of mould of this scheme design is compact, has overcome the difficulty that traditional mould multi-angle, multi-direction existence of loosing core, realizes the smooth drawing of patterns of product, improves production efficiency and product quality.

Claims (1)

1. An injection mold for a plastic intake manifold of a precision automobile engine comprises an upper compound plate (1) and a lower compound plate (2), wherein the upper compound plate is connected with a runner plate (3) and a runner fixing plate (4) below, a cavity frame (5) is arranged below the runner fixing plate, a cavity insert (6) is arranged in the cavity frame, a mold foot (7) is arranged on the lower compound plate (2), a core plate (8) is arranged on the mold foot, a core insert (9) is arranged on the core plate, one side of the core plate (8) is provided with a large outer slide block (16), the core insert (9) and the cavity insert (6) are matched to form a mold cavity, an injection molded intake manifold (10) is arranged in the mold cavity, a column hole (11) and a bottom plate (12) are arranged on the intake manifold (10), a fixed hole (13) is arranged on the outer wall of the bottom plate and the column hole, a port (14) is arranged at one end of the intake manifold, and an air pipe (15) is arranged on the port, the outer wall system of trachea (15) has flaring (151), and the crossing department of trachea (15) and port (14) forms contained angle (a), its characterized in that:

a column hole core rod (20) is arranged in the cavity insert (6), and the column hole core rod (20) extends out of the cavity insert and is matched with the column hole (11);

a fixed hole fixing block (21) corresponding to the fixed hole (13) is arranged in the large outer sliding block (16), a fixed hole core rod (22) is connected below the fixed hole fixing block, the fixed hole core rod is matched with the fixed hole (13) downwards, a fixed hole spring (23) abutting against the fixed hole fixing block is arranged in the large outer sliding block, a clamping groove (24) is arranged on the fixed hole fixing block, a drag hook (25) is connected below the cavity insert (6), the drag hook (25) is matched with the clamping groove (24), an outer sliding oil cylinder (26) is arranged on the outer wall of the core plate (8), and the outer sliding oil cylinder drives the large outer sliding block (16) to slide outwards;

a slide guide base (30) is obliquely arranged on the outer wall of the core plate (8) at the side of the port (14), a slide guide groove (31) is formed in the slide guide base, a slide guide block (32) is arranged on the slide guide groove, the front end of the slide guide block is connected with a port core block (33), the port core block is matched with the port (14), a first oblique guide hole (34) is formed in the slide guide block, a first oblique guide pillar (35) is connected below the cavity frame (5), the first oblique guide pillar (35) is matched with the first oblique guide hole (34), a compression spring (36) is arranged at the outer end of the slide guide base (30), a connecting rod (37) is arranged in the compression spring, and the connecting rod (37) is connected with the slide guide block (32);

an inclined pumping base (40) is arranged on a core insert (9) at the side of an air pipe (15), a stop block (41) is arranged at the front end of the inclined pumping base, an inclined pumping chute (42) is arranged on the inclined pumping base, an inclined pumping block (43) is connected on the inclined pumping chute, a small fixed block (44) is arranged in the inclined pumping block, a flaring pumping rod (45) is connected on the small fixed block, the flaring pumping rod (45) is matched with a flaring (151), an air pipe pumping rod (46) is connected on the inclined pumping block, the air pipe pumping rod (46) passes through the flaring pumping rod (45) to be matched with the air pipe (15), a forced release pressure spring (47) is arranged between the stop block (41) and the inclined drawing block (43), a second inclined guide hole (48) is formed in the inclined drawing block (43), a lock module (49) is arranged in the cavity insert (6), the lock module (49) is matched with the inclined drawing block (43), a second inclined guide rod (491) is connected below the lock module, and the second inclined guide rod (491) is matched with the second inclined guide hole (48);

a flat sliding block (50) is arranged on a core plate (8) corresponding to an included angle (a), an inclined sliding groove (51) is formed in the front end of the flat sliding block, an included angle pulling block (52) is connected to the inclined sliding groove (51), the included angle pulling block (52) penetrates through a core insert (9) to be matched with the included angle (a), a third inclined guide hole (53) is formed in the flat sliding block (50), an inclined wedge block (54) is connected to the lower portion of a cavity frame (5), a third inclined guide rod (55) is connected to the lower portion of the inclined wedge block, and the third inclined guide rod (55) is matched with the third inclined guide hole (53).

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