CN211137944U - A no weld mark multiple spot advances gluey mechanism for making car grid injection mould - Google Patents

Abstract

The utility model provides a no weld mark multiple spot advances gluey mechanism for making car grill injection mould belongs to the injection mould. The injection molding machine comprises a fixed template and a movable template, wherein the movable template is provided with a plurality of glue inlet ports connected with an injection molding machine, the movable template is provided with a molding surface for molding the inner side surface of a plastic part, the movable template is also provided with a plurality of outer injection molding grooves connected with the side wall of the molding surface, the movable template is also movably connected with a plurality of straight ejector blocks, the top end surface of each straight ejector block is a part of the molding surface, each straight ejector block is internally provided with an inner injection molding groove communicated with the glue inlet port, and the inner injection molding groove is connected with a plurality of shunt grooves communicated with the molding surface.

Description

A no weld mark multiple spot advances gluey mechanism for making car grid injection mould

Technical Field

The utility model belongs to the injection mould field especially relates to a no weld mark multiple spot advances gluey mechanism for making car grill injection mould.

Background

When making grid class product, a lot of moulds only adopt one to advance jiao kou, but because grid class product hole is many and the area is big, only one advances to glue mouthful and leads to moulding plastics the speed slow, cavity or bubble form easily, consequently need design a kind of injection mould that advances jiao kou more, but grid class product is because most be that the surface has a lot of holes, and the weld mark can be very unsightly on the surface when moulding plastics, and because the outward appearance requires, advances to glue mouthful hardly to beat the product the inside in addition.

For example, chinese patent literature discloses an injection-molded encapsulated grid mold [ patent application No.: CN201820091931.0], which comprises a panel, a gate plate, an upper template, a lower template, square iron and a bottom plate, wherein the upper inner mold parting surface is provided with an upper cavity groove and an upper positioning groove, an upper sealing glue ring is matched in the upper positioning groove, the lower inner mold parting surface is provided with a lower cavity groove and a lower positioning groove, a lower sealing glue ring is matched in the lower positioning groove, and the upper cavity groove and the lower cavity groove jointly form a complete rubber-coated cavity; the lower inner die is embedded with a limiting insert, the bottom of the limiting insert is connected with the elastic element, and the limiting insert compresses the elastic element and is positioned in the through hole in a die assembly state; the grid to be encapsulated is compressed between the upper encapsulation ring and the lower encapsulation ring, the encapsulation ring is made of elastic high-temperature-resistant materials and can automatically adapt to different changes of the net-shaped framework, the encapsulation ring isolates the encapsulation materials in the cavity, and encapsulation is reliable; the effect of spacing mold insert is that the restriction grid removes along the die joint, and the scope of placing of injecing the grid makes things convenient for the location of laying of grid like this, but this mould can leave the welding trace on moulding the piece when moulding plastics, and difficult pruning problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above-mentioned problem, provide a no weld mark multiple spot advances gluey mechanism for making car grill injection mould.

In order to achieve the above purpose, the utility model adopts the following technical proposal:

the utility model provides a no weld mark multiple spot advances gluey mechanism for making car grid injection mould, includes fixed die plate and movable mould board, the movable mould board on be equipped with a plurality of and advance gluey mouth that the injection molding machine is connected, the movable mould board on be equipped with the shaping face that is used for shaping the inside surface of moulding, the movable mould board on still be equipped with a plurality of and the outer injection moulding groove that the shaping face lateral wall is connected, the movable mould board in still swing joint have a plurality of straight kicking blocks, the top terminal surface of straight kicking block be a part of shaping face, be equipped with in every straight kicking block with advance the interior groove of moulding of gluey mouth intercommunication, interior injection moulding groove on be connected with the splitter box of a plurality of and shaping face intercommunication.

In foretell no weld mark multiple spot advances gluey mechanism for making car grid injection mould, still be equipped with the oblique kicking block that a plurality of can follow straight kicking block horizontal direction reciprocating motion around in every straight kicking block, oblique kicking block extend into straight kicking block in, interior notes groove of moulding run through oblique kicking block, just interior notes groove of moulding be located the terminal surface of straight kicking block and oblique kicking block, interior notes groove of moulding offset with the movable mould board.

In the above multi-point glue feeding mechanism without the weld marks for manufacturing the automobile grille injection mold, each inclined ejecting block is connected with an inclined ejecting rod movably connected with the movable template, an acute angle is formed between the inclined ejecting rod and the movable template, and when the inclined ejecting rod moves upwards along the movable template, the inclined ejecting block is far away from the straight ejecting block along the horizontal direction of the straight ejecting block.

In the above multi-point glue feeding mechanism without the weld mark for manufacturing the automobile grille injection mold, the inclined top block is also internally provided with a clamping groove communicated with the inner injection groove, and the clamping groove and the inclined top block form a concave shape.

In the above multi-point glue feeding mechanism without the weld marks for manufacturing the automobile grille injection mold, the inner injection groove extends into the movable mold plate towards the bottom of the movable mold plate, and the plurality of shunting grooves are axially arranged along the movable mold plate.

In the above-mentioned multiple spot glue feeding mechanism without weld mark for manufacturing the injection mold for the vehicle grill, the cross-sectional area of each shunt groove is gradually reduced from the end connected with the inner injection groove to the other end.

In the above multi-point glue feeding mechanism without weld marks for manufacturing the automobile grille injection mold, the forming surface is provided with a plurality of grille blocks arranged in an array, the forming surface is provided with a plurality of criss-cross grille rod grooves, and each grille rod groove is connected with a plurality of grille blocks.

In the above multi-point glue feeding mechanism without the weld marks for manufacturing the automobile grid injection mold, the plurality of splitter boxes on each inner injection molding box are connected with the same grid rod box, and the plurality of splitter boxes on the same grid rod box are respectively positioned at the intersection points of two mutually staggered grid rod boxes.

In the above multi-point glue feeding mechanism without weld marks for manufacturing the injection mold for the automobile grille, the forming surface is connected with a plurality of straight ejector rods capable of reciprocating back and forth along the axial direction of the movable mold plate, the edge of the forming surface is also connected with a plurality of transverse inclined rods, and the transverse inclined rods are arranged at equal intervals along the side wall of the forming surface.

In the above multi-point glue feeding mechanism without the weld marks for manufacturing the automobile grille injection mold, when the transverse inclined rod and the straight ejector rod move upwards out of the movable mold plate along the axial direction of the movable mold plate, the transverse inclined rod is close to or far away from the straight ejector rod along the horizontal direction.

Compared with the prior art, the utility model has the advantages of:

1. the device is provided with a plurality of glue inlets, wherein a plurality of glue inlets are arranged on the edge side wall of the forming surface, during injection, injection liquid flows into the forming surface through the glue inlets arranged on the edge side wall of the forming surface, the other glue inlets are communicated with the inner injection groove in the straight top block, during injection, the injection liquid is injected into the inner injection groove through the glue inlets, and the injection liquid flows upwards from the bottom of the driven template into the forming surface through the diversion groove, so that no welding trace is left on the front surface of a plastic part.

2. Compared with a plastic part, the inclined ejecting block drives residues in the inner injection molding groove to move along the horizontal direction of the plastic part in the demolding process, so that the part of injection molding liquid cooled in the inner injection molding groove is transversely and automatically separated from the plastic part, and welding marks on the back surface of the plastic part are reduced.

3. Draw-in groove 20 among the device is used for increasing the area of contact of liquid and oblique kicking block of moulding plastics, makes the area of the liquid adhesion of moulding plastics after the cooling on oblique kicking block be greater than the area of adhesion on straight kicking block to the liquid residue of moulding plastics of the groove of moulding plastics can remove and break away from straight kicking block along with oblique kicking block in the messenger, prevents to split.

Drawings

Fig. 1 is an overall schematic view of the present invention;

FIG. 2 is a schematic illustration of the explosion of FIG. 1;

FIG. 3 is an overall schematic view of a moving platen;

fig. 4 is an exploded view of the moving platen.

In the figure: the device comprises a fixed template 10, a movable template 11, a glue inlet 12, a forming surface 13, an outer injection molding groove 14, a straight ejector block 15, an inner injection molding groove 16, a diversion groove 17, an inclined ejector block 18, an inclined ejector rod 19, a clamping groove 20, a grid block 21, a grid rod groove 22, a transverse inclined rod 23 and a straight ejector rod 24.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1-4, the multi-point glue feeding mechanism without the weld marks for manufacturing the injection mold for the automobile grille comprises a fixed mold plate 10 and a movable mold plate 11, wherein the movable mold plate 11 is provided with a plurality of glue feeding ports 12 connected with an injection molding machine, the movable mold plate 11 is provided with a molding surface 13 for molding the inner side surface of a plastic part, the movable mold plate 11 is further provided with a plurality of outer injection molding grooves 14 connected with the side wall of the molding surface 13, the movable mold plate 11 is further movably connected with a plurality of straight jacking blocks 15, the top end surfaces of the straight jacking blocks 15 are part of the molding surface 13, each straight jacking block 15 is internally provided with an inner injection molding groove 16 communicated with the glue feeding port 12, and the inner injection molding grooves 16 are connected with a plurality of shunting grooves 17 communicated with the molding surface 13.

Because the grating products mostly have many holes on the surface, the weld mark will be very unsightly on the surface when injecting, and because of the appearance requirement, the glue inlet is difficult to hit the product inside, therefore in the utility model, a plurality of glue inlets 12 are provided, several of them are arranged on the edge side wall of the forming surface 13, during injecting, the injection liquid flows into the forming surface 13 through the glue inlets 12 arranged on the edge side wall of the forming surface 13, and extends to the center of the forming surface 13 under high pressure, furthermore, other glue inlets 12 are communicated with the inner injection groove 16 in the straight top block 15, during injecting, the injection liquid is injected into the inner injection groove 16 through the glue inlets 12, and the injection liquid flows upwards from the bottom of the driven template 11 into the forming surface 13 through the diversion groove 17, during demoulding, the pouring mark is left on the side wall and the back of the plastic piece, and the straight top block 15 upwards ejects the plastic piece, the separation of the inner injection molding groove 16 and the back of the plastic part is convenient.

Still be equipped with the oblique kicking block 18 that a plurality of can follow straight kicking block 15 horizontal direction reciprocating motion around in every straight kicking block 15, oblique kicking block 18 extend into straight kicking block 15 in, interior groove 16 of moulding plastics run through oblique kicking block 18, just interior groove 16 of moulding plastics be located straight kicking block 15 and oblique kicking block 18's terminal surface, interior groove 16 of moulding plastics offset with movable mould board 11.

In the utility model, the injection molding liquid flows into the molding surface 13 through the back surface of the plastic part for injection molding, although the problem that the welding trace is not left on the front surface of the plastic part is solved, the welding trace is still left on the back surface, so in the utility model, during demolding, the inclined ejecting block 18 moves upwards to drive the straight ejecting block 15 to eject the plastic part upwards, and in the ejection process, the slanted ejecting block 18 not only moves upward, but also moves away from the straight ejecting block 15 in the horizontal direction of the straight ejecting block 15, since the inner injection groove 16 penetrates the lifter block 18, the portion of the injection liquid cooled in the lifter block 18 is adhered to the lifter block 18, when the straight ejector block 15 carries the plastic part to move upwards, compared with the plastic part, the inclined ejector block 18 carries the residues in the inner injection molding groove 16 to move along the horizontal direction of the plastic part, so that the part of the injection liquid cooled in the inner injection groove 16 is transversely and automatically separated from the plastic part, thereby reducing the welding marks on the back surface of the plastic part.

Each inclined ejecting block 18 is connected with an inclined ejecting rod 19 movably connected with the movable template 11, an acute angle is formed between the inclined ejecting rod 19 and the movable template 11, and when the inclined ejecting rod 19 moves upwards along the movable template 11, the inclined ejecting block 18 is far away from the straight ejecting block 15 along the horizontal direction of the straight ejecting block 15.

The inclined ejecting block 18 is also internally provided with a clamping groove 20 communicated with the inner injection molding groove 16, and the clamping groove 20 and the inclined ejecting block 18 form a concave shape.

Because the inner injection groove 16 penetrates through the inclined ejecting block 18 and the straight ejecting block 15, the cooled part of the inner injection groove 16 is adhered to the inclined ejecting block 18 and the straight ejecting block 15, in order to enable injection liquid residues of the inner injection groove 16 to be separated from the straight ejecting block 15 and a plastic part along with the movement of the inclined ejecting block 18, the contact area of the injection liquid and the inclined ejecting block 18 needs to be increased, the area of the cooled injection liquid adhered to the inclined ejecting block 18 is larger than the area of the cooled injection liquid adhered to the straight ejecting block 15, and therefore the injection liquid residues of the inner injection groove 16 can move along with the inclined ejecting block 18 and be separated from the straight ejecting block 15, and breakage is prevented.

The inner injection groove 16 extends into the movable mould plate 11 towards the bottom of the movable mould plate 11, and the plurality of shunting grooves 17 are axially arranged along the movable mould plate 11.

The branch grooves 17 of each inner injection groove 16 are uniformly distributed on the movable mold plate 11, and the injected injection liquid can be uniformly injected into each area of the molding surface 13 during injection molding.

The cross-sectional area of each of the runners 17 decreases from the end connected to the inner injection runner 16 to the other end.

The utility model discloses in, reduce the area of contact of splitter box 17 and shaping face 13 as far as, in the drawing of patterns in-process, can reduce the area of the butt fusion vestige that the piece back of moulding left.

The forming surface 13 is provided with a plurality of grid blocks 21 arranged in an array, the forming surface 13 is provided with a plurality of criss-cross grid rod grooves 22, and each grid rod groove 22 is connected with a plurality of grid blocks 21.

The plurality of shunt grooves 17 on each inner injection molding groove 16 are connected with the same grid rod groove 22, and the plurality of shunt grooves 17 on the same grid rod groove 22 are respectively positioned at the intersection points of two mutually staggered grid rod grooves 22.

In the injection molding process, the injection molding liquid is injected into the intersection points of the grid rod grooves 22 which are mutually staggered through the plurality of the branch grooves 17, and the injection molding liquid can be rapidly injected into each area of the forming surface 13 through the grid rod grooves 22, so that the injection molding speed is accelerated.

The forming surface 13 is connected with a plurality of straight ejector rods 24 capable of reciprocating back and forth along the axial direction of the movable mould plate 11, the edge of the forming surface 13 is also connected with a plurality of transverse inclined rods 23, and the transverse inclined rods 23 are arranged at equal intervals along the side wall of the forming surface 13.

The utility model discloses in, the contact site shape of the horizontal down tube 23 of a plurality of and shaping face 13 is complicated, has a plurality of departments of buckling, at ejecting mould the piece and with mould the in-process that the piece breaks away from, in order not to destroy and mould the piece, horizontal down tube 23 can only be along the horizontal direction and along the shaping face 13 department of buckling back-and-forth movement, prevent that horizontal down tube 23 from damaging with the department of buckling extrusion collision and mould the piece.

When the transverse inclined rod 23 and the straight ejector rod 24 move upwards out of the movable template 11 along the axial direction of the movable template 11, the transverse inclined rod 23 is close to or far away from the straight ejector rod 24 along the horizontal direction. The transverse diagonal rods 23 are close to or far away from the straight ejector rods 24 along the horizontal direction, so that the transverse diagonal rods 23 move back and forth relative to the plastic part, and the transverse diagonal rods 23 are separated from the adhesion state of the plastic part under the premise of preventing the plastic part from being damaged by extrusion collision of the transverse diagonal rods 23 and a bent part.

The principle of the utility model is that: during injection, injection liquid flows into the forming surface 13 through a plurality of glue inlets 12 arranged on the side wall of the edge of the forming surface 13 and extends towards the center of the forming surface 13 under high pressure, in addition, another plurality of glue inlets 12 are communicated with an inner injection groove 16 in a straight ejector block 15, during injection, the injection liquid is injected into the inner injection groove 16 through the plurality of glue inlets 12 and flows upwards from the bottom of a driven template 11 into the forming surface 13 through a diversion groove 17, during demolding, the straight ejector block 15 is driven by the upward movement of the inclined ejector block 18 to eject the plastic part upwards, during ejection, the inclined ejector block 18 not only moves upwards, but also moves away from the straight ejector block 15 along the horizontal direction of the straight ejector block 15, because the inner injection groove 16 penetrates through the inclined ejector block 18, the part of the injection liquid cooled in the inclined ejector block 18 is adhered to the inclined ejector block 18, when the straight ejector block 15 drives the plastic part upwards, compared with the plastic part, the inclined ejecting block 18 carries residues in the inner injection groove 16 to move along the horizontal direction of the plastic part, so that the part of the injection liquid cooled in the inner injection groove 16 is automatically separated from the plastic part transversely, and welding marks on the back surface of the plastic part are reduced.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the fixed mold plate 10, the movable mold plate 11, the glue inlet 12, the forming surface 13, the outer injection molding groove 14, the straight ejector block 15, the inner injection molding groove 16, the diversion groove 17, the slanted ejector block 18, the slanted ejector rod 19, the clamping groove 20, the grill block 21, the grill rod groove 22, the transverse slanted rod 23, the straight ejector rod 24, etc., are used more herein, these terms are used only for the convenience of describing and explaining the essence of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims (10)

1. A multi-point glue feeding mechanism without weld marks for manufacturing an automobile grille injection mould comprises a fixed mould plate (10) and a movable mould plate (11), it is characterized in that a plurality of glue inlets (12) connected with an injection molding machine are arranged on the movable template (11), the movable mould plate (11) is provided with a forming surface (13) for forming the inner side surface of the plastic part, the movable mould plate (11) is also provided with a plurality of outer injection molding grooves (14) connected with the side wall of the forming surface (13), the movable template (11) is also movably connected with a plurality of straight jacking blocks (15), the top end surface of the straight ejecting block (15) is a part of the forming surface (13), an inner injection groove (16) communicated with the glue inlet (12) is arranged in each straight ejecting block (15), the inner injection groove (16) is connected with a plurality of shunting grooves (17) communicated with the forming surface (13).

2. The multi-point glue feeding mechanism without the weld marks for manufacturing the injection mold for the automobile grille is characterized in that a plurality of inclined ejecting blocks (18) capable of reciprocating back and forth along the horizontal direction of each straight ejecting block (15) are further arranged in each straight ejecting block (15), each inclined ejecting block (18) extends into each straight ejecting block (15), an inner injection groove (16) penetrates through each inclined ejecting block (18), the inner injection groove (16) is located on the end faces of each straight ejecting block (15) and each inclined ejecting block (18), and the inner injection groove (16) is abutted to the movable mold plate (11).

3. The multi-point glue feeding mechanism without the weld marks for manufacturing the injection mold of the automobile grille is characterized in that each inclined ejecting block (18) is connected with an inclined ejecting rod (19) movably connected with the movable mold plate (11), an acute angle is formed between each inclined ejecting rod (19) and the movable mold plate (11), and when the inclined ejecting rods (19) move upwards along the movable mold plate (11), the inclined ejecting blocks (18) are far away from the straight ejecting blocks (15) along the horizontal direction of the straight ejecting blocks (15).

4. The multiple-point glue feeding mechanism without the weld mark for manufacturing the injection mold of the automobile grille is characterized in that a clamping groove (20) communicated with the inner injection groove (16) is further formed in the inclined ejecting block (18), and the clamping groove (20) and the inclined ejecting block (18) form a concave shape.

5. The multiple spot glue feeding mechanism without weld marks for manufacturing the injection mold of the vehicle grill as claimed in claim 1, wherein the inner injection groove (16) extends into the movable mold plate (11) toward the bottom of the movable mold plate (11), and a plurality of shunting grooves (17) are axially disposed along the movable mold plate (11).

6. A multiple spot glue feeding mechanism without weld marks for an injection mold for vehicle grilles, according to claim 5, wherein the cross-sectional area of each of the branched grooves (17) is gradually reduced from the end connected to the inner injection groove (16) to the other end.

7. The multiple spot glue feeding mechanism without weld marks for manufacturing injection molds for vehicle grilles according to claim 1, wherein a plurality of grill blocks (21) are arranged in an array on the forming surface (13), a plurality of criss-cross grill rod grooves (22) are arranged on the forming surface (13), and a plurality of grill blocks (21) are connected to each grill rod groove (22).

8. A multiple-point glue-feeding mechanism without weld marks for manufacturing injection molds for vehicle grilles according to claim 7, characterized in that a plurality of shunt grooves (17) on each inner injection groove (16) are connected with the same grille rod groove (22), and a plurality of shunt grooves (17) on the same grille rod groove (22) are respectively positioned at the intersection points of two mutually staggered grille rod grooves (22).

9. The multiple-point glue feeding mechanism without the weld marks for manufacturing the injection mold of the automobile grille is characterized in that a plurality of straight ejector rods (24) capable of reciprocating back and forth along the axial direction of the movable mold plate (11) are connected to the forming surface (13), a plurality of transverse inclined rods (23) are further connected to the edge of the forming surface (13), and the transverse inclined rods (23) are arranged at equal intervals along the side wall of the forming surface (13).

10. The multiple spot glue feeding mechanism without weld marks for manufacturing injection molds for vehicle grillage according to claim 9, wherein the horizontal diagonal bar (23) is close to or far from the straight ejector bar (24) along the horizontal direction when the horizontal diagonal bar (23) and the straight ejector bar (24) are moved upward along the axial direction of the movable mold plate (11) out of the movable mold plate (11).

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