CN221518598U - Injection molding die for windshield water guide strip - Google Patents

Abstract

The utility model discloses an injection molding die for a windshield water guide strip, which comprises an ejector plate, ejector pins, inclined ejector pins, a panel, a hot runner plate, an A plate, a B plate, square iron and a bottom plate which are sequentially arranged from top to bottom, wherein a front die core is arranged below the A plate, a rear die core is arranged above the B plate, the front die core and the rear die core are correspondingly arranged, cavities are formed at the left side and the right side, a first injection pipeline and a second injection pipeline are arranged on the hot runner plate, elastic blocks are arranged at the cavities at the two sides, supporting blocks are arranged below the elastic blocks, the supporting blocks are fixed on the square iron, one ends of the ejector pins and the inclined ejector pins are fixed on the ejector pins, and the other ends of the ejector pins and the inclined ejector pins are corresponding to the cavities. By arranging the supporting blocks, the elastic blocks can be kept motionless during the mode locking; when the mould is opened, the supporting block moves downwards, a certain space is provided for demoulding and opening of the elastic block, and the elastic block is convenient to demould. Therefore, the phenomenon of death caused by movement of the spring block is avoided, the integral structure is simplified, and the opening and closing die of the product is facilitated.

Description

Injection molding die for windshield water guide strip

Technical Field

The utility model belongs to an injection mold, and particularly relates to an injection molding mold for a windshield water guide strip.

Background

Because of the special structure of the automobile windshield water guide strip, in order to form the guide groove, in the existing injection molding die, in order to form two strip grooves and ensure normal demolding, products are obliquely molded, a front die sliding block and a rear die sliding block (shown in figure 1) are additionally arranged, and the two sliding blocks respectively correspond to the two strip grooves, so that the injection molding of the structure is realized. However, the front mold slide block and the rear mold slide block are both moving bodies, so that collision and friction burning phenomena are easy to occur during the matching; meanwhile, the sliding block moves obliquely, if the angle is larger than 25 degrees, the sliding block is limited, and the locking phenomenon of the sliding block can also occur; and the product is obliquely molded, and the ejector pin does not act on the product well, so that the product is difficult to demold.

Disclosure of utility model

The utility model aims to provide an injection molding die for a windshield water guide strip, which can solve at least one of the problems.

According to one aspect of the utility model, there is provided an injection molding die for a windshield water guide strip, comprising an ejector plate, an ejector pin, an inclined ejector pin, a panel, a hot runner plate, an A plate, a B plate, square iron and a bottom plate which are sequentially arranged from top to bottom, wherein a front die core is arranged below the A plate, a rear die core is arranged above the B plate, the front die core is correspondingly arranged with the rear die core, cavities are formed at the left side and the right side, a first injection pipeline and a second injection pipeline are arranged on the hot runner plate, the first injection pipeline corresponds to one of the cavities, the second injection pipeline corresponds to the other of the cavities, elastic blocks are arranged at the cavities at the two sides, supporting blocks are arranged below the elastic blocks, the ejector plate is arranged on the inner side of the square iron, one ends of the ejector pin and the inclined ejector pin are respectively fixed on the ejector plate, and the other end corresponds to the cavities.

The beneficial effects of the utility model are as follows: through the corresponding setting of bullet piece and die cavity for the product is when the shaping is put to the level, through the effect of die cavity and bullet piece, through the cooperation of the shape of die cavity and bullet piece, can carry out the profile modeling to two guiding gutter simultaneously, through after moulding plastics, obtains corresponding product. By arranging the supporting blocks, the elastic blocks can be kept motionless during the mode locking; when the mould is opened, the supporting block moves downwards, a certain space is provided for demoulding and opening of the elastic block, and the elastic block is convenient to demould. Therefore, the injection molding and demolding requirements on corresponding products can be met through one elastic block, the phenomenon of death caused by burning of the movement of the elastic block is avoided, the integral structure is simplified, and the mold opening and closing of the products are facilitated.

In some embodiments, the windshield water guide strip injection molding die further comprises an inclined guide post, wherein the inclined guide post is obliquely arranged, one end of the inclined guide post is fixed on the B plate, and the elastic block is sleeved on the inclined guide post. Therefore, through being provided with the oblique guide pillar, the guide effect is conveniently played for the removal of bullet piece, and the bullet piece slope of being convenient for moves downwards, guarantees that the product does not receive wearing and tearing.

In some embodiments, the windshield water guide strip injection molding die further comprises a spring block spring, one end of the spring block spring is positioned in the spring block and is abutted against the spring block, and the other end of the spring block spring is abutted against the A plate. Therefore, the spring block spring is arranged, so that the spring block can be downwards ejected out through the spring block spring when the product is demoulded, and the spring block spring is separated from the groove position of the product, thereby being beneficial to the safe demould of the product.

In some embodiments, the top end of the supporting block is provided with a first hook, the bottom end of the elastic block is provided with a second hook, and the first hook and the second hook can be hooked and matched. Therefore, when the die is opened, the first clamping hook and the second clamping hook are separated, so that the elastic block is separated from the supporting block, and the die is convenient to release.

In some embodiments, the front end of the spring is provided with a protrusion corresponding to the cavity. Therefore, one of the water guide grooves of the product is conveniently molded through the bulge.

Drawings

FIG. 1 is a schematic view of a part of a prior art injection molding die for a water guide strip of an automobile windshield.

FIG. 2 is a schematic view showing a structure of a molding die of an injection molding die of a water guide strip for a windshield according to the present utility model;

FIG. 3 is a schematic structural view of a part of the structure of an injection molding die of a windshield water guide bar according to the present utility model;

FIG. 4 is a schematic top view of the structure of FIG. 3;

FIG. 5 is a schematic view of the cross-sectional structure of A-A in FIG. 4;

FIG. 6 is an enlarged schematic view of the portion C of FIG. 5;

FIG. 7 is a schematic view of the cross-sectional structure B-B of FIG. 4.

Detailed Description

The utility model is described in further detail below with reference to the accompanying drawings.

Refer to fig. 1-7. The utility model provides a windshield water guide strip injection moulding mould, including thimble board 1, thimble 2, oblique ejector pin 3, and panel 4 from top to bottom arranges in proper order, hot runner board 5, A board 6, B board 7, square iron 8 and bottom plate 9, the below of A board 6 is equipped with front mould benevolence 10, the top of B board 7 is equipped with back mould benevolence 20, front mould benevolence 10 corresponds the setting with back mould benevolence 20, and all form the die cavity in the left and right sides, be equipped with first injection pipeline 30 and second injection pipeline 40 on hot runner board 5, first injection pipeline 30 is corresponding with one of them side die cavity, the second injection pipeline corresponds with the opposite side die cavity, both sides die cavity department all is equipped with bullet piece 50, be equipped with supporting shoe 60 below each bullet piece 50, supporting shoe 60 is fixed on square iron 8, thimble board 1 locates square iron 8 inboard, thimble 2 and oblique ejector pin 3's one end all is fixed on thimble board 1, the other end corresponds with the die cavity.

Wherein, the front end of the spring block 50 is provided with a protrusion 502, and the protrusion 502 corresponds to the cavity. By the action of the protrusion 502 and the cavity, a corresponding space can be provided for product molding. A raised strip is formed on the upper end surface of the rear mold core 20, the raised strip corresponds to one water tank of the water guide strip, and the protrusion 502 corresponds to the other water tank of the water guide strip, so that the forming requirement of a product is met.

Because only one elastic block 50 is arranged, when the product is demoulded, the elastic block 50 is separated, meanwhile, the thimble 2 can act on the bottom of one of the water tanks, so that the thimble 2 can conveniently act to eject the product, and the demoulding is convenient.

Specifically, when the windshield water guide strip injection molding die is in die assembly, the front die core 10 is matched with the rear die core 20, the protrusions 502 of the elastic blocks 50 extend into the die cavity, the upper end faces of the supporting blocks 60 press the elastic blocks 50 upwards, sufficient die locking force is provided for the elastic blocks 50, and the elastic blocks 50 are prevented from moving during glue injection. After the die assembly is completed, hard glue is injected into the corresponding cavity through the first injection pipeline 30, after the injection is completed, the external force drives the panel 4, the hot runner plate 5 and the A plate 6 to rotate as a whole, so that the upper die part integrally rotates 180 degrees, the second injection pipeline 40 rotates to the original position of the first injection pipeline 30, soft glue is injected into the hard glue injected product through the second injection pipeline 40, and the injection molding of the product is completed.

The injection molding die of the windshield water guide strip further comprises an inclined guide post 70, wherein the inclined guide post 70 is obliquely arranged, one end of the inclined guide post 70 is fixed on the B plate 7, and the elastic block 50 is sleeved on the inclined guide post 70.

The windshield water guide strip injection molding die further comprises a spring block spring 80, one end of the spring block spring 80 is positioned in the spring block 50 and is abutted against the spring block 50, and the other end of the spring block spring is abutted against the A plate 6.

The top of the supporting block 60 is provided with a first hook 601, the bottom of the elastic block 50 is provided with a second hook 501, and the first hook 601 and the second hook 501 can be hooked and matched.

After the injection molding is finished, the windshield water guide strip injection molding die is opened, and the die opening process specifically comprises the following steps: under the action of external mold opening force, the square iron 8 and the B plate 7 are driven to be opened first. Because the first hook 601 and the second hook 501 are hooked and matched in the die closing state, when the square iron 8 is opened to the side far away from the B plate 7, the first hook 601 pulls the second hook 501, so that when the supporting block 60 moves downwards along with the square iron 8, the elastic block 50 is enabled to be downwards sprung under the combined action of the elastic block spring 80 and the hook, the protrusion 502 on the elastic block 50 moves downwards and is separated from a product, and the die opening action of the product back-off is realized. After the elastic block 50 is separated from the product, the A plate 6 and the B plate 7 are opened until the product has enough ejection space, then the ejector plate 1 moves upwards to drive the ejector pin 2 and the inclined ejector rod 3 to move downwards, and the ejector pin 2 and the inclined ejector rod 3 eject the product upwards to realize the demolding of the product.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and improvements could be made by those skilled in the art without departing from the inventive concept, which fall within the scope of the present utility model.

Claims (5)

1. Windshield water guide strip injection moulding mould, its characterized in that includes thimble board (1), thimble (2), oblique ejector pin (3) and panel (4), hot runner board (5), A board (6), B board (7), square iron (8) and bottom plate (9) that arrange in proper order from top to bottom, the below of A board (6) is equipped with front mould benevolence (10), the top of B board (7) is equipped with back mould benevolence (20), front mould benevolence (10) correspond the setting with back mould benevolence (20) to all form the die cavity in the left and right sides, be equipped with first injection pipeline (30) and second injection pipeline (40) on hot runner board (5), first injection pipeline (30) are corresponding with one of them side die cavity, the second injection pipeline is corresponding with the opposite side die cavity, both sides die cavity department all is equipped with bullet piece (50), and each bullet piece (50) below is equipped with supporting shoe (60), supporting shoe (60) are fixed on square iron (8), thimble board (1) are located inboard side iron (8) and are located on the thimble board (2) and are corresponding with oblique ejector pin (3).

2. The windshield water guide strip injection molding die according to claim 1, further comprising an inclined guide post (70), wherein the inclined guide post (70) is obliquely arranged, one end of the inclined guide post (70) is fixed on the B plate (7), and the elastic block (50) is sleeved on the inclined guide post (70).

3. The windshield water guide strip injection molding die according to claim 2, further comprising a spring block spring (80), wherein one end of the spring block spring (80) is located in the spring block (50) and is abutted against the spring block (50), and the other end is abutted against the a plate (6).

4. A windshield water guide strip injection molding die according to claim 3, wherein a first clamping hook (601) is arranged at the top end of the supporting block (60), a second clamping hook (501) is arranged at the bottom end of the elastic block (50), and the first clamping hook (601) and the second clamping hook (501) can be in hooking fit.

5. The windshield water guide strip injection molding die according to any one of claims 1 to 4, wherein a protrusion (502) is provided at a front end portion of the spring block (50), and the protrusion (502) corresponds to the cavity.