CN213166629U

CN213166629U - Injection mold for lower guard plate of automobile

Info

Publication number: CN213166629U
Application number: CN202021436631.5U
Authority: CN
Inventors: 潘勇
Original assignee: Zhejiang Wanhao Plastic Mould Co ltd
Current assignee: Zhejiang Wanhao Plastic Mould Co ltd
Priority date: 2020-07-20
Filing date: 2020-07-20
Publication date: 2021-05-11
Anticipated expiration: 2030-07-20

Abstract

The utility model relates to the technical field of injection molds, in particular to an injection mold for a lower guard plate of an automobile, which comprises a fixed mold and a movable mold, wherein the fixed mold comprises a fixed mold seat plate, a splitter plate and a fixed mold plate which are arranged in sequence; the movable mould comprises a movable mould plate, an ejector rod mounting plate, an ejector rod push plate and a movable mould seat plate which are arranged in sequence, and a mould cavity for injection molding of the lower protection plate of the automobile is formed between the fixed mould plate and the movable mould plate; the branch runner is provided with a plurality of support rings, and the end parts of the support rings are movably abutted against the inner wall of the mounting frame. The utility model discloses a set up a plurality of support ring at the edge of subchannel, the outer tip butt of support ring utilizes the cooperation of mounting bracket and support ring at the inner wall butt of mounting bracket, solves the subchannel and can not evenly be fixed, leads to the subchannel problem of taking place the crack or damaging.

Description

Injection mold for lower guard plate of automobile

Technical Field

The utility model relates to an injection mold technical field refers in particular to a backplate injection mold under car.

Background

The automobile lower guard plate is usually arranged in front of or below an automobile bumper and used for shielding the bumper, and the integral attractiveness of the automobile is guaranteed by matching with other guard plates of the automobile.

At present, the lower guard plate of an automobile is usually produced by large-scale injection molding of a mold, the length of the lower guard plate of the automobile is longer, the whole length of the mold is correspondingly lengthened, the whole length of a runner in the lengthened mold is longer, the whole width of the runner is narrower due to product reasons, when the runner is fixed on a runner plate, each part of the runner cannot be fixed due to the limitation of the width of the runner, and the condition that the runner is damaged or cracks are caused due to uneven stress caused by uneven fixed position possibly, so that the injection molding operation of the mold is influenced.

Disclosure of Invention

The utility model aims at providing a backplate injection mold under car sets up a plurality of support ring through the edge at the subchannel, and the outer tip butt of support ring provides the holding power for the subchannel at the inner wall butt of mounting bracket for the subchannel, utilizes the cooperation of mounting bracket and support ring, realizes the fixed of shunting way, solves the subchannel and can not evenly fix, makes the atress inhomogeneous, leads to the subchannel to take place the problem of split or damage.

The purpose of the utility model is realized like this:

an injection mold for an automobile lower guard plate comprises a fixed mold and a movable mold, wherein the fixed mold comprises a fixed mold seat plate, a splitter plate and a fixed mold plate which are sequentially arranged, a main pouring gate is arranged in the middle of the fixed mold seat plate, an installation frame and a splitter passage communicated with the main pouring gate are arranged on the splitter plate, and a plurality of heating elements and split pouring structures are arranged on the splitter passage;

the movable mould comprises a movable mould plate, an ejector rod mounting plate for mounting an ejector rod, an ejector rod push plate and a movable mould seat plate which are arranged in sequence, and a mould cavity for injection molding of the lower protection plate of the automobile is formed between the fixed mould plate and the movable mould plate;

the branch runner is provided with a plurality of support rings, and the end parts of the support rings are movably abutted against the inner wall of the mounting frame.

Further, the support ring is U-shaped and is rotatably connected with the edge of the shunt channel through a bolt.

The circuit fixing device is characterized in that a plurality of wire fixing sleeves are arranged at the upper end of the mounting rack, and the circuit is constrained on the upper end face of the mounting rack through the wire fixing sleeves.

The upper end of the wire fixing sleeve is provided with an opening, and the middle part of the wire fixing sleeve is arranged and used for allowing a line to enter and be restrained in the wire fixing sleeve.

Further setting, the movable mould plate is provided with a plurality of mounting grooves for mounting the ejection blocks, the inner walls of the mounting grooves are molded into a first injection molding groove, the side walls of the ejection blocks are recessed to form a second injection molding groove, and the first injection molding groove and the second injection molding groove are matched to form a first channel communicated with the mould cavity.

And further arranging, grooves are formed in the inner walls of the movable mould plate and the fixed mould plate, after the movable mould plate and the fixed mould plate are closed, the two grooves form an injection moulding channel, the injection moulding channel is communicated with the channel I, and one end of the injection moulding channel is communicated with the sub-pouring structure.

The split pouring structure comprises an injection molding needle cylinder arranged at the lower end of the sub-runner and an electromagnetic valve arranged at the upper end of the injection molding needle cylinder, a valve rod is arranged in the injection molding needle cylinder, an injection molding nozzle is arranged at the bottom of the injection molding needle cylinder, and the electromagnetic valve controls the valve rod to stretch and retract to realize the opening and closing of the injection molding nozzle.

The ejection block comprises a first ejection block and a second ejection block, a U-shaped groove is formed in the side face of the first ejection block, and the U-shaped groove is communicated with the die cavity;

and a molding groove is formed in the side surface of the second ejection block, and the upper end surface of the molding groove is communicated with the mold cavity.

Further, an ejector rod device is movably arranged in the movable template and comprises a first push rod and a second push rod, and the first push rod and the second push rod are arranged in a reversed splayed mode.

The lower ends of the first push rod and the second push rod are respectively provided with a swinging device, each swinging device comprises a sliding seat, a T-shaped groove is formed in each sliding seat, a sliding plate is movably arranged in each T-shaped groove, each sliding plate is hinged with a hinge block, and each hinge block is connected with the lower end of the ejector rod device;

limiting strips are arranged at two ends of the sliding seat and limit the sliding plate to move in the sliding seat.

Compared with the prior art, the utility model outstanding and profitable technological effect is:

1. the utility model discloses set up a plurality of support ring in the periphery of subchannel, after the subchannel is installed on the flow distribution plate, the outer tip of support ring can the butt on the inner wall of mounting bracket, for the subchannel provides the holding power, makes the subchannel ability atress even, and can more stable fix on the flow distribution plate. Can restrict the removal of flow distribution plate through the support ring, improve fixed stability, can effectually avoid the subchannel can not evenly be fixed, the atress is inhomogeneous, leads to the subchannel to take place the emergence of the condition of crack or damage, guarantees the life of subchannel.

2. The utility model discloses a U-shaped design of support ring can conveniently be connected support ring and subchannel. The support ring is fixed by bolts, and the angle at which the support ring is fixed with the sub-runners can be adjusted according to the local shape of the sub-runners, so that the support ring can support the sub-runners more stably.

3. The utility model discloses a fixed setting can be with the circuit on the flow distribution plate, for example control solenoid's circuit, fixed to the support frame on, avoids the heating element contact on circuit and the subchannel, damages the outside protective sheath of circuit, prevents short circuit or other circuit problems, guarantees the normal work of electrical part.

4. The utility model discloses the passageway that sets up on the ejecting piece is first, and the passageway of moulding plastics is cooperated, can enter into the die cavity with the melt from the side of ejecting piece in, behind the injection moulding, the in-process of the ejecting product of ejecting device, the release and the separation of product can be followed to the remaining material in passageway one and the passageway of moulding plastics, saves the trouble of manual separation die cavity interior residual material for the production of product, and then improved production rate.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic structural view of the flow distribution plate of the present invention.

Fig. 3 is a schematic structural diagram of the movable die plate of the present invention.

Fig. 4 is an enlarged view of the area a of fig. 3.

Fig. 5 is one of the structural schematic diagrams of the lower guard plate and the ejector block of the present invention.

Fig. 6 is a second schematic structural diagram of the lower guard plate and the ejector block of the present invention.

Fig. 7 is an enlarged view of the region B of fig. 5.

Fig. 8 is an enlarged view of the region C of fig. 6.

Fig. 9 is a schematic structural diagram of the ejection device of the present invention.

Fig. 10 is a schematic structural diagram of the swing device of the present invention.

Reference numerals: 1-fixing a mold base plate; 2-a splitter plate; 3-fixing a template; 4-a main gate; 5-mounting a frame; 6-branch channel; 7-moving the template; 8-a mandril mounting plate; 9-moving the die base plate; 10-a support ring; 11-wire fixing sleeve; 12-mounting grooves; 13-injection molding of a first groove; 14-an ejection block; 15-injection molding groove two; 16-a groove; 17-a solenoid valve; 18-a first ejector block; 19-a second ejector block; 20-U-shaped grooves; 21-forming a groove; 22-a first ejector pin; 23-a second ejector rod; 24-a swing device; 25-a slide; 26-T-shaped slots; 27-a slide plate; 28-a hinged block; 29-a limit bar; 30-lower guard plate.

Detailed Description

The following describes the present invention in further detail with reference to the accompanying drawings.

As shown in FIG. 1, an injection mold for an automobile lower guard plate comprises a fixed mold and a movable mold.

The cover half is including the cover half bedplate 1, flow distribution plate 2 and the fixed die plate 3 that set gradually, the cover half bedplate 1 middle part is provided with head gate 4, be provided with mounting bracket 5 and intercommunication head gate 4's subchannel 6 on the flow distribution plate 2, be provided with a plurality of heating element on the subchannel 6 and divide the pouring structure.

The movable mould comprises a movable mould plate 7, an ejector rod mounting plate 8 for mounting an ejector rod, an ejector rod push plate and a movable mould seat plate 9 which are arranged in sequence, wherein a mould cavity for injection molding of the lower protective plate of the automobile is formed between the fixed mould plate 3 and the movable mould plate 7.

As shown in fig. 2, the splitter plate 2 is provided with an installation groove 12 for installing a splitter 6, the splitter 6 is internally provided with a plurality of splitter channels communicated with the main gate 4, and the splitter 6 is embedded with a plurality of heating elements, temperature sensors and a split casting structure.

The heating element is used for ensuring the temperature of the molten material and preventing the influence on the flowability of the material caused by the overhigh cooling speed, and the temperature sensor controls the internal temperature in real time and feeds the internal temperature back to the master control system. When the internal temperature is low, the heating element 51 is turned on to operate; when the temperature is high, the heating element 51 is switched off or its power is reduced.

The installation groove 12 of the branch channel 6 is internally provided with an installation frame 5, the installation frame 5 is connected with a fixed plate, the end parts of the heating element and the electromagnetic valve 17 are fixed on the fixed plate and are connected with the outside through the fixed plate, and the problems of more circuits and easy knotting disorder can be solved.

As shown in fig. 2, a plurality of support rings 10 are arranged around the sub-runners 6, the outer end portions of the support rings 10 are abutted to the inner wall of the mounting frame 5, the sub-runners 6 are supported and fixed through the support rings 10, the sub-runners 6 are stably fixed on the flow distribution plate 2 by matching with screws arranged on the sub-runners 6, the uniform stress of the sub-runners 6 is ensured, the occurrence of cracking or damage of the sub-runners 6 caused by uneven stress can be effectively avoided, and the service life of the sub-runners 6 is ensured.

Further, the support ring 10 is designed into a U shape, the support ring 10 is connected to the sub-runners 6 through screws, the installation angle can be adjusted, the fixed angle can be adjusted according to the shape and the stress direction of the sub-runners 6, and the support ring 10 can accurately support the sub-runners 6.

Further setting up, because the temperature behind the heating element circular telegram is very high, if the circuit contacts with it, can destroy the outside protective sheath of circuit, in order to avoid the emergence of this kind of condition, as shown in fig. 2, be provided with a plurality of solidus cover 11 on mounting bracket 5 up end, the upper end opening and the inside cavity setting of solidus cover 11, the circuit can be heavily in the opening of upper end enters into solidus cover 11, solidus cover 11 can limit the circuit in mounting bracket 5 upper end, prevent its and heating element contact, destroy outside protective sheath, guarantee the condition such as short circuit can not take place between the circuit, guarantee the security of mould.

In order to solve the problem that the residual molten material in the injection channel is difficult to separate after injection molding, as shown in fig. 3-4, a plurality of mounting grooves 12 for mounting ejection blocks 14 are formed on the movable mold plate 7, injection grooves one 13 are formed on the inner side walls of the mounting grooves 12, the side walls of the ejection blocks 14 are recessed to form injection grooves two 15, and the injection grooves one 13 and the injection grooves two 15 are matched to form a channel one communicated with a mold cavity.

Strip-shaped grooves 16 are formed in the inner walls of the movable template 7 and the fixed template 3, when the movable template 7 and the fixed template 3 are closed, the two grooves 16 form an injection molding channel, the injection molding channel is communicated with the first channel, and the other end of the injection molding channel is movably communicated with a glue gun of a sub-pouring structure.

During injection molding, the melt enters the runner 6 from the main gate 4, the injection molding channel is communicated through a glue gun of the runner 6, and the melt enters the mold cavity from the first injection molding channel to perform injection molding of the lower protection plate 30.

After molding, the residual materials can be separated from the injection molding channel along with the movement of the ejection block 14 and can be separated from the ejection block 14 along with the separation of the lower protection plate 30, so that the problem that the residual waste materials are difficult to separate from the mold is solved, the design can accelerate production and improve the production rate.

The branch pouring structure comprises a glue gun arranged at the lower end of the branch runner 6 and an electromagnetic valve 17 arranged at the upper end of the glue gun, a valve rod is arranged in the glue gun, an injection molding nozzle is arranged at the bottom of the glue gun, and the electromagnetic valve 17 controls the valve rod to stretch and retract to realize the opening and closing of the injection molding nozzle. Specifically, after the glue gun passes through the fixed die plate 33, the glue gun is communicated with the die cavity.

5-8, the ejection block 14 comprises a first ejection block 18 and a second ejection block 19, and the first ejection block 18 and the second ejection block 19 are respectively arranged on two sides of the mold cavity; the U-shaped groove 20 is formed in the side face of the first ejection block 18, the U-shaped groove 20 is communicated with the die cavity, and the design enables the edge of the formed lower protection plate 30 to be protruded with a clamping edge with a hole in the middle, so that the lower protection plate can be conveniently clamped with other decorative plates.

As shown in fig. 8, a forming groove 21 is formed on the side surface of the second ejection block 19, and the upper end surface of the forming groove 21 is communicated with the mold cavity, so that a convex edge is formed on the edge of the lower guard plate 30, which is convenient for fixing and using when the lower guard plate of the automobile is installed.

As shown in fig. 9-10, a mandrel device is movably disposed in the movable mold plate 7, and the upper end of the mandrel device is connected to the ejection block 14. The ejector rod device comprises a first ejector rod 22 and a second ejector rod 23, and the first ejector rod 22 and the second ejector rod 23 are arranged in a reverse splayed mode.

Therefore, when the ejector rod device ejects the ejection block 14, the ejection block 14 moves obliquely upwards, and in the moving process, the ejection block 14 can be separated from the lower protection plate 30, so that the automatic separation function of the lower protection plate 30 and the ejection block 14 is realized, the trouble of manual separation is omitted, and the production rate of the lower protection plate 30 is improved.

As shown in fig. 10, in order to satisfy the flexibility of the bottom when the ram device moves obliquely upwards, a swing device 24 is arranged at the lower end of the ram device, the swing device 24 comprises a slide seat 25, a T-shaped groove 26 is formed in the slide seat 25, a slide plate 27 is movably arranged in the T-shaped groove 26, a hinge block 28 is hinged on the slide plate 27, and the hinge block 28 is connected with the lower end of the ram device; limiting strips 29 are arranged at two ends of the sliding seat 25, and the limiting strips 29 limit the movement of the sliding plate 27 in the sliding seat 25

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a backplate injection mold under car, includes cover half and movable mould, its characterized in that: the fixed die comprises a fixed die base plate (1), a splitter plate (2) and a fixed die plate (3) which are sequentially arranged, a main pouring gate (4) is arranged in the middle of the fixed die base plate (1), an installation frame (5) and a splitter channel (6) communicated with the main pouring gate (4) are arranged on the splitter plate (2), and a plurality of heating elements and split pouring structures are arranged on the splitter channel (6);

the movable mould comprises a movable mould plate (7), an ejector rod mounting plate (8) for mounting an ejector rod, an ejector rod push plate and a movable mould base plate (9) which are sequentially arranged, and a mould cavity for injection molding of the lower protective plate of the automobile is formed between the fixed mould plate (3) and the movable mould plate (7);

a plurality of support rings (10) are arranged on the sub-runners (6), and the end parts of the support rings (10) are movably abutted against the inner wall of the mounting frame (5).

2. The injection mold for the lower guard plate of the automobile according to claim 1, wherein: the support ring (10) is U-shaped and is rotatably connected with the edge of the sub-runner (6) through a bolt.

3. The injection mold for the lower guard plate of the automobile according to claim 1, wherein: the upper end of the mounting rack (5) is provided with a plurality of wire fixing sleeves (11), and the circuit is constrained on the upper end face of the mounting rack (5) through the wire fixing sleeves (11).

4. The injection mold for the lower guard plate of the automobile as claimed in claim 3, wherein: the upper end of the wire fixing sleeve (11) is opened, and the middle of the inner part of the wire fixing sleeve is arranged for a line to enter and be restrained in the wire fixing sleeve (11).

5. The injection mold for the lower guard plate of the automobile according to claim 1, wherein: the movable mould plate (7) is provided with a plurality of mounting grooves (12) for mounting the ejection blocks (14), the inner walls of the mounting grooves (12) are provided with injection molding grooves I (13), the side walls of the ejection blocks (14) are recessed to form injection molding grooves II (15), and the injection molding grooves I (13) and the injection molding grooves II (15) are matched to form a channel I communicated with a mould cavity.

6. The injection mold for the lower guard plate of the automobile according to claim 1, wherein: the injection molding machine is characterized in that strip-shaped grooves (16) are formed in the inner walls of the movable template (7) and the fixed template (3), when the movable template (7) and the fixed template (3) are closed, the two grooves (16) form injection molding channels, the injection molding channels are communicated with the first channel, and one ends of the injection molding channels are communicated with the sub-pouring structure.

7. The injection mold for the lower guard plate of the automobile according to claim 1, wherein: the branch pouring structure comprises a glue gun arranged at the lower end of the branch runner (6) and an electromagnetic valve (17) arranged at the upper end of the glue gun, a valve rod is arranged in the glue gun, an injection molding nozzle is arranged at the bottom of the glue gun, and the electromagnetic valve (17) controls the valve rod to stretch and retract to realize the opening and closing of the injection molding nozzle.

8. The injection mold for the lower guard plate of the automobile as claimed in claim 5, wherein: the ejection block (14) comprises a first ejection block (18) and a second ejection block (19), a U-shaped groove (20) is formed in the side face of the first ejection block (18), and the U-shaped groove (20) is communicated with the mold cavity;

a molding groove (21) is formed in the side surface of the second ejection block (19), and the upper end surface of the molding groove (21) is communicated with the mold cavity.

9. The injection mold for the lower guard plate of the automobile according to claim 1, wherein: an ejector rod device is movably arranged in the movable template (7), the ejector rod device comprises a first ejector rod (22) and a second ejector rod (23), and the first ejector rod (22) and the second ejector rod (23) are arranged in a reversed splayed mode.

10. The injection mold for the lower guard plate of the automobile according to claim 9, wherein: the lower ends of the first ejector rod (22) and the second ejector rod (23) are respectively provided with a swinging device (24), each swinging device (24) comprises a sliding seat (25), a T-shaped groove (26) is formed in each sliding seat (25), a sliding plate (27) is movably arranged in each T-shaped groove (26), each sliding plate (27) is hinged with a hinge block (28), and each hinge block (28) is connected with the lower end of each ejector rod device;

limiting strips (29) are arranged at two ends of the sliding seat (25), and the limiting strips (29) limit the movement of the sliding plate (27) in the sliding seat (25).