CN215242688U

CN215242688U - Precise injection mold of lightweight thin-wall automobile door panel assembly

Info

Publication number: CN215242688U
Application number: CN202120918960.1U
Authority: CN
Inventors: 何志军
Original assignee: Taizhou Meitu Molding Co ltd
Current assignee: Taizhou Meitu Molding Co ltd
Priority date: 2021-04-29
Filing date: 2021-04-29
Publication date: 2021-12-21
Anticipated expiration: 2031-04-29

Abstract

The utility model provides a precise injection mold of lightweight thin-walled automobile door plate assembly, including fixed die plate and movable mould board, be provided with the die cavity on the fixed die plate, be provided with the core on the movable mould board, be provided with in the die cavity and decide to insert, be provided with the hot plate on the tip that decides to insert, be provided with a plurality of shaping posts on the hot plate, be provided with on the core and move and insert, move and insert and a plurality of shaping post are inconsistent. After the core is inserted into the cavity, a cavity is formed between the core and the cavity. When the automobile door panel is used, the molten plastic is injected into the mold cavity, and the molten plastic in the mold cavity can be formed into the automobile door panel after being cooled. A plurality of forming columns on the heating plate can be used for forming horn meshes on the automobile door plate by matching with the movable insert blocks. The hot plate keeps the mobility of loudspeaker mesh department molten plastics through the cooling rate of heating in order to reduce loudspeaker mesh department molten plastics, and car door plant is provided with the difficult condition that warp appears in loudspeaker mesh department, and fashioned car door plant can have higher yields.

Description

Precise injection mold of lightweight thin-wall automobile door panel assembly

Technical Field

The utility model relates to an automobile door plant forming tool especially relates to a precision injection mold of lightweight thin wall automobile door plant assembly.

Background

At present, the Chinese patent with the publication number of CN208133537U discloses a forming die for a decorative plate of a rear door of an automobile, which comprises a runner plate, a forming A plate, a forming B plate and a plurality of inclined ejection mechanisms, wherein the runner plate, the forming A plate and the forming B plate are overlapped from top to bottom, a material channel is arranged in the runner plate, a plurality of material holes are arranged in the forming A plate, a forming groove communicated with the material holes is arranged on the bottom surface of the forming A plate, a die core matched with the forming groove is arranged on the forming B plate, the forming A plate and the forming B plate are matched, the die core and the forming groove form a product cavity, the inclined ejection mechanisms comprise ejector blocks, telescopic ejector rods, a base and guide blocks, the ejector blocks are embedded in the die core, the upper surface of the top block and the upper surface of the mold core are in smooth transition, the base is provided with a chute, the guide block is movably arranged in the chute, the telescopic ejector rod is obliquely arranged in the mold core, one end of the telescopic ejector rod is connected with the ejector block, and the other end of the telescopic ejector rod is connected with the guide block.

Generally, the surface of an injection molding part of an automobile door panel is designed with a horn mesh structure so as to have the functions of beauty, dust prevention, ventilation, heat dissipation and the like. However, with the requirement that the aperture of the mesh is increasingly fine, the mesh is more densely distributed, the molten plastic close to the horn mesh can be rapidly cooled by adopting a conventional method for injection molding, and the molten plastic far away from the horn mesh is slowly cooled, so that the problem of warping deformation of the horn mesh is solved when the automobile door panel is provided with the horn mesh, and the yield of the automobile door panel is greatly influenced.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a precision injection mold of lightweight thin wall car door plant assembly, it can reduce the cooling rate of horn mesh department's molten plastic, keeps being close to the mobility of the molten plastic of horn mesh department for car door plant is provided with the difficult condition that warp appears in horn mesh department, makes fashioned car door plant can have higher yields.

In order to solve the technical problems, the technical scheme of the invention is as follows: the utility model provides a precision injection mold of lightweight thin-walled automobile door plate assembly, including the fixed die plate and with the movable mould board of fixed die plate lock, the fixed die plate is provided with the die cavity, be provided with on the movable mould board and be used for inserting the core of die cavity, be provided with in the die cavity and decide to insert, be provided with the hot plate on the tip of deciding to insert, be provided with a plurality of shaping posts on the hot plate, the core with it is provided with to decide to insert relative department and moves and insert, move insert with a plurality of shaping post is inconsistent.

Through the technical scheme, after the mold core is inserted into the mold cavity, the mold cavity is formed between the mold core and the mold cavity. When the automobile door panel is used, the molten plastic is injected into the mold cavity, and the molten plastic in the mold cavity can be formed into the automobile door panel after being cooled. A plurality of forming columns on the heating plate can be used for forming horn meshes on the automobile door plate by matching with the movable insert blocks. The hot plate keeps the mobility of loudspeaker mesh department molten plastics through the cooling rate of heating in order to reduce loudspeaker mesh department molten plastics, and car door plant is provided with the difficult condition that warp appears in loudspeaker mesh department, and fashioned car door plant can have higher yields.

Preferably, the surface of the heating plate and the surface of the forming column are coated with a release coating.

Through above-mentioned technical scheme, the surface of shaping post scribbles the drawing of patterns coating for the inner hole wall of loudspeaker mesh is difficult for gluing on shaping post, makes the inner hole wall of loudspeaker mesh be difficult for being pulled badly, makes fashioned car door plant can have higher yields. The surface of the heating plate is coated with the demolding coating, so that the formed automobile door plate is not easy to adhere to the heating plate, the surface of the automobile door plate is not easy to damage by pulling, and the formed automobile door plate can have higher yield.

Preferably, the fixed insert is provided with a positioning groove, the movable insert is provided with a positioning bulge, and the positioning bulge is inserted into the positioning groove.

Through the technical scheme, when the movable insert moves towards the fixed insert, the positioning bulge on the movable insert is inserted into the positioning groove of the fixed insert, so that the fixed insert and the movable insert can be accurately buckled.

Preferably, a spring is arranged in the positioning groove, an ejector block is arranged at the end of the spring, the ejector block is connected inside the positioning groove in a sliding mode, and the ejector block abuts against the positioning protrusion under the action of the spring.

Through above-mentioned technical scheme, when the location arch inserted the constant head tank, the protruding extrusion kicking block of location removed to the constant head tank is inside for the spring is compressed gradually. The spring deformed by pressure applies elasticity to the positioning bulge through the ejector block to buffer the pressure generated during the molding of the fixed insert, so that the poor molding condition of the horn mouth due to overlarge extrusion force is not easy to occur.

Preferably, an auxiliary pipe penetrates through the inside of the fixed insert block, and a circulating water pipe for heating the heating plate is arranged in the auxiliary pipe.

Through above-mentioned technical scheme, through to the inside injection hot water of circulating water pipe for heat the hot plate. The heating plate through heating can reduce the cooling rate of loudspeaker mesh department melting plastics, keeps the mobility of loudspeaker mesh department melting plastics, and car door plant is provided with the difficult condition that warp appears in loudspeaker mesh department, and fashioned car door plant can have higher yields.

Preferably, the annular groove is formed in the auxiliary pipe, the annular groove is communicated with an inner hole of the auxiliary pipe, an external connecting pipe is arranged in the annular groove, and the circulating water pipe penetrates through the external connecting pipe.

Through above-mentioned technical scheme, through taking over the hydraulic pump connection with circulating pipe and external outward, the hydraulic pump can pour into hot water into circulating pipe for heat the hot plate.

Preferably, a liquid flow pipeline penetrates through the annular groove and the circulating water pipe, a check valve is arranged in the liquid flow pipeline, and the check valve is used for limiting liquid to flow from the annular groove to the circulating water pipe.

Through above-mentioned technical scheme, when the water pressure in the circulating water pipe was too big, the control check valve was opened, and the hot water in the circulating water pipe gets into the annular via the liquid flow pipe under the water pressure effect in for the water pressure in the circulating water pipe can descend, avoids appearing circulating water pipe because of the too big fracture of water pressure.

Preferably, the liquid flow pipeline is obliquely arranged, the check valve comprises a stop block and a check ball, the stop block is arranged at one end, close to the circulating water pipe, of the liquid flow pipeline, and the surface of the check ball is abutted to the surface of the inner wall of the liquid flow pipeline.

Through above-mentioned technical scheme, the check ball supports tightly with the dog under the dead weight effect for with the shutoff of liquid flow pipeline. When the water pressure of the circulating water pipe is too high, the liquid in the circulating water pipe pushes the check ball into the annular groove, and then the hot water in the circulating water pipe can enter the annular groove through the liquid flow pipeline, so that the water pressure in the circulating water pipe is reduced.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment;

FIG. 2 is a schematic structural diagram of a fixed template;

FIG. 3 is a schematic structural diagram of a movable template;

fig. 4 is a partial sectional view of the embodiment.

Reference numerals: 1. fixing a template; 2. moving the template; 3. a cavity; 4. a core; 5. fixing an insert; 6. heating plates; 7. forming a column; 8. a movable insert; 9. demolding the coating; 10. positioning a groove; 11. positioning the projection; 12. a spring; 13. a top block; 14. an auxiliary tube; 15. a circulating water pipe; 16. a ring groove; 17. an external connection pipe; 18. a liquid flow conduit; 19. a check valve; 191. a stopper; 192. a check ball.

Detailed Description

The following detailed description of the embodiments of the present invention is provided in order to make the technical solution of the present invention easier to understand and understand.

A precision injection mold for a light-weight thin-wall automobile door panel assembly is shown in figures 1, 2 and 3 and comprises a fixed mold plate 1 and a movable mold plate 2 which are buckled with each other. The end face of the fixed die plate 1 close to the movable die plate 2 is provided with a die cavity 3, the end face of the movable die plate 2 close to the fixed die plate 1 is provided with a die core 4, the die core 4 is inserted into the die cavity 3, and a die cavity for forming an automobile door plate is formed between the die core 4 and the die cavity 3.

As shown in fig. 2, 3 and 4, a fixed insert 5 is arranged on the inner cavity wall of the cavity 3, a heating plate 6 is arranged on the end of the fixed insert 5, and a plurality of forming columns 7 are arranged on the heating plate 6. And a movable insert 8 is arranged at the position of the side wall of the mold core 4 opposite to the fixed insert 5, and the movable insert 8 is abutted against the forming columns 7. When the fixed die plate 1 and the movable die plate 2 are mutually buckled, the forming columns 7 and the movable insert blocks 8 are matched to form horn meshes on the automobile door plate.

The surface of the heating plate 6 and the surface of the forming column 7 are coated with the demoulding coating 9, so that the formed automobile door plate can be demoulded more conveniently, and the production efficiency of the injection mould is improved.

The fixed insert 5 is provided with a positioning groove 10, the movable insert 8 is provided with a positioning bulge 11, and the positioning bulge 11 is inserted into the positioning groove 10 to limit the relative transverse movement between the fixed insert 5 and the movable insert 8. Be provided with spring 12 in the constant head tank 10, the tip of spring 12 is provided with kicking block 13, and kicking block 13 slides and connects inside constant head tank 10, and kicking block 13 supports tightly in location arch 11 under the spring 12 effect.

An auxiliary pipe 14 penetrates through the inside of the fixed insert 5, and a circulating water pipe 15 is arranged in the auxiliary pipe 14. An annular groove 16 is formed in the auxiliary pipe 14, the annular groove 16 is communicated with an inner hole of the auxiliary pipe 14, an external connecting pipe 17 is arranged in the annular groove 16, and the circulating water pipe 15 penetrates through the external connecting pipe 17. A liquid flow pipeline 18 penetrates between the annular groove 16 and the circulating water pipe 15, a check valve 19 is arranged in the liquid flow pipeline 18, and the check valve 19 is used for limiting liquid flowing from the annular groove 16 to the circulating water pipe 15. The liquid flow pipeline 18 is obliquely arranged, the check valve 19 comprises a stop 191 and a check ball 192, the stop 191 is arranged at one end of the liquid flow pipeline 18 close to the circulating water pipe 15, and the surface of the check ball 192 is abutted against the surface of the inner wall of the liquid flow pipeline 18.

The above are only typical examples of the present invention, and besides, the present invention may have other embodiments, and all the technical solutions formed by equivalent substitutions or equivalent changes are within the scope of the present invention as claimed.

Claims

1. The utility model provides a precision injection mold of lightweight thin-walled automobile door panel assembly, including fixed die plate (1) and with movable mould board (2) of fixed die plate (1) lock, fixed die plate (1) is provided with die cavity (3), be provided with on movable mould board (2) and be used for inserting core (4) of die cavity (3), characterized by: the mould core is characterized in that a fixed insert (5) is arranged in the cavity (3), a heating plate (6) is arranged at the end part of the fixed insert (5), a plurality of forming columns (7) are arranged on the heating plate (6), a movable insert (8) is arranged at the position, opposite to the fixed insert (5), of the mould core (4), and the movable insert (8) is abutted to the forming columns (7).

2. The precision injection mold of a light-weight thin-wall automobile door panel assembly according to claim 1, characterized in that: and the surfaces of the heating plate (6) and the forming columns (7) are coated with demolding coatings (9).

3. The precision injection mold of a light-weight thin-wall automobile door panel assembly according to claim 1, characterized in that: the fixed insert (5) is provided with a positioning groove (10), the movable insert (8) is provided with a positioning bulge (11), and the positioning bulge (11) is inserted into the positioning groove (10).

4. The precision injection mold of a light-weight thin-wall automobile door panel assembly according to claim 3, characterized in that: be provided with spring (12) in constant head tank (10), the tip of spring (12) is provided with kicking block (13), kicking block (13) slide to be connected inside constant head tank (10), just kicking block (13) are in under the spring (12) effect support tightly in location arch (11).

5. The precision injection mold of a light-weight thin-wall automobile door panel assembly according to claim 1, characterized in that: an auxiliary pipe (14) penetrates through the inside of the fixed insert (5), and a circulating water pipe (15) used for heating the heating plate (6) is arranged in the auxiliary pipe (14).

6. The precision injection mold of a light-weight thin-wall automobile door panel assembly according to claim 5, characterized in that: annular groove (16) have been seted up to auxiliary tube (14) inside, annular groove (16) with the hole of auxiliary tube (14) is linked together, annular groove (16) inside is provided with outer takeover (17), circulating pipe (15) are followed pass in outer takeover (17).

7. The precision injection mold of a light-weight thin-wall automobile door panel assembly according to claim 6, characterized in that: a liquid flow pipeline (18) penetrates between the annular groove (16) and the circulating water pipe (15), a check valve (19) is arranged in the liquid flow pipeline (18), and the check valve (19) is used for limiting liquid to flow from the annular groove (16) to the circulating water pipe (15).

8. The precision injection mold of a light-weight thin-wall automobile door panel assembly according to claim 7, characterized in that: the liquid flow pipeline (18) is obliquely arranged, the check valve (19) comprises a stop block (191) and a check ball (192), the stop block (191) is arranged at one end, close to the circulating water pipe (15), of the liquid flow pipeline (18), and the surface of the check ball (192) is abutted to the surface of the inner wall of the liquid flow pipeline (18).