CN214773819U

CN214773819U - Cooling mechanism for injection mold of complex deep-cavity automobile glove box

Info

Publication number: CN214773819U
Application number: CN202120089561.9U
Authority: CN
Inventors: 尤荣杰
Original assignee: Taizhou Wonderful Plastic Mould Co ltd
Current assignee: Taizhou Wonderful Plastic Mould Co ltd
Priority date: 2021-01-13
Filing date: 2021-01-13
Publication date: 2021-11-19
Anticipated expiration: 2031-01-13

Abstract

The utility model provides a complicated dark chamber car glove box injection mold cooling body belongs to the injection mold field. It includes fixed die plate and movable mould board, the fixed die plate be close to and be equipped with the core on the terminal surface of movable mould board, the core in be equipped with the first cooling tube of a plurality of, first cooling tube extend to the other end from the one end of core, still be connected with the connecting pipe between the first cooling tube of a plurality of, connecting pipe and a plurality of first cooling tube intercommunication, the both ends of connecting pipe be connected with a first business turn over water pipe respectively. Its advantage lies in that the cooling water flows in to first cooling tube through first business turn over water pipe, flows in a plurality of first cooling tube through the connecting pipe to the piece is moulded in the quick cooling, continues to flow in the mould after cooling to the circulating device through another business turn over water pipe outflow mould at last and cools off moulding, thereby accelerates to mould a refrigerated speed.

Description

Cooling mechanism for injection mold of complex deep-cavity automobile glove box

Technical Field

The utility model belongs to the injection mold field especially relates to a complicated dark chamber car glove box injection mold cooling body.

Background

After the injection molding process is finished, the cooling process is also very important, and the formed plastic product can be prevented from deforming due to external force after being demoulded only if the formed plastic product is cooled and solidified to certain rigidity. Uneven cooling can cause warpage of the plastic article. The existing cooling mode of the injection mold generally adopts a natural cooling direction, but the cooling speed is slower.

For the plastic part with larger size, a cold water pipe is arranged in a lower fixed die of the die, and the area close to the bottom of the die cavity is cooled, so that the product is quickly cooled, the time for cooling is reduced to a certain extent, but the cooling area cannot completely cover the die cavity, and the cooling is uneven. Particularly, when a thin plastic plate is formed by cooling, the thinner the plastic plate is, and the more the plastic plate has the property of expanding with heat and contracting with cold, the thinner the product is, the more the product is, and the larger the bending amplitude is.

For example, chinese patent document discloses an injection mold having a highly efficient cooling gas path [ patent application No.: CN201920052656.6], the injection molding machine comprises four injection molding cores and a mold cooling air path, wherein a shape following air path arranged according to the shape of a product is arranged in each injection molding core, and the shape following air path is communicated with the mold cooling air path. The utility model keeps the inside and outside cooling of the mold in synchronization after molding, avoids the product from deforming, reduces the molding period of the product and improves the yield of the product; in addition, all be provided with corresponding control flap between each section and the air circuit of following shape with the mould cooling gas circuit, prevent when one of them mould core of moulding plastics when the problem, other mould cores of moulding plastics still can normally cool off. But this device does not result in uniform cooling due to the cooling area not completely covering the mold cavity.

Disclosure of Invention

The utility model aims at the above-mentioned problem, a complicated dark chamber car glove box injection mold cooling body is provided.

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

the utility model provides a complicated dark chamber car glove box injection mold cooling body, includes fixed die plate and movable mould board, the fixed die plate be close to and be equipped with the core on the terminal surface of movable mould board, the core in be equipped with the first cooling tube of a plurality of, first cooling tube extend to the other end from the one end of core, still be connected with the connecting pipe between the first cooling tube of a plurality of, connecting pipe and a plurality of first cooling tube intercommunication, the both ends of connecting pipe be connected with a first business turn over water pipe respectively.

In the complex deep-cavity automobile glove box injection mold cooling mechanism, the movable mold plate is internally provided with a molding cavity corresponding to the mold core, a plurality of second cooling pipes are arranged on four sides of the molding cavity, a plurality of second water inlet and outlet pipes are arranged in the movable mold plate, and two ends of each second water inlet and outlet pipe extend out of the movable mold plate and are communicated with the plurality of second cooling pipes in a penetrating manner.

In the complex deep cavity automobile glove box injection mold cooling mechanism, the cross section of the connecting pipe is smaller than that of the first cooling pipe, the cross section of the second water inlet and outlet pipe is smaller than that of the second cooling pipe, and U-shaped channels are arranged in the first cooling pipe and the second cooling pipe.

In foretell deep chamber car glove box injection mold cooling mechanism of complicacy, the bottom of shaping chamber be equipped with a plurality of ejector pin, the diapire of shaping chamber keeping away from the fixed die plate be the plane setting, a plurality of ejector pin sets gradually along four lateral walls of shaping chamber.

In the complex deep-cavity automobile glove box injection mold cooling mechanism, a port of the molding cavity, which is close to the fixed mold plate, is connected with a plurality of straight ejector blocks, and the molding cavity is surrounded by the straight ejector blocks.

In the complex deep-cavity automobile glove box injection mold cooling mechanism, a circle of groove is further formed outside the port of the forming cavity, and a plurality of straight ejecting blocks extend into the groove.

In the complex deep-cavity automobile glove box injection mold cooling mechanism, two sides of at least two straight ejecting blocks are respectively provided with a clamping edge groove communicated with the groove, a connecting groove is communicated between the two clamping edge grooves, and the connecting groove penetrates through the straight ejecting blocks.

In the complex deep-cavity automobile glove box injection mold cooling mechanism, a plurality of straight grooves arranged in parallel with the ejector rods are recessed in the four side walls of the forming cavity, and the end parts, far away from the bottom wall of the forming cavity, of the straight grooves penetrate through the forming cavity.

In the complex deep-cavity automobile glove box injection mold cooling mechanism, the movable mold plate is provided with a positioning groove, and the fixed mold plate is provided with a positioning block corresponding to the positioning groove.

In the complex deep cavity automobile glove box injection mold cooling mechanism, the positioning groove is communicated with the forming cavity, a buckling frame for forming a plastic part is arranged in the positioning groove, a gap is formed between the buckling frame and a notch of the positioning groove, which is close to the fixed mold plate, when the mold is closed, the positioning block abuts against the side wall of the positioning groove and abuts against two ends of the buckling frame, and a gap is formed between the positioning block and the inner wall of the buckling frame.

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

1. the utility model discloses the cooling water flows in to first cooling tube through first business turn over water pipe, flows in the first cooling tube of a plurality of through the connecting pipe to the piece is moulded in the quick cooling, continues to flow in the mould after cooling down to circulating device through another business turn over water pipe outflow mould at last and cools off moulding in the mould, thereby accelerates to mould a refrigerated speed.

2. The utility model discloses the surface area on the plastic part surface of adhesion on the shaping chamber is great, consequently in order to increase the cooling rate of this part, makes and is equipped with a plurality of second business turn over water pipe and every second business turn over water pipe intercommunication a plurality of second cooling tube in the movable mould board, makes and has multistage cooling channel in the movable mould board for cooling rate.

Drawings

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

FIG. 2 is a schematic structural diagram of a fixed die plate;

FIG. 3 is an exploded schematic view of FIG. 2;

FIG. 4 is a schematic structural view of a moving platen;

FIG. 5 is an exploded schematic view of FIG. 4;

fig. 6 is a schematic view of a U-shaped channel.

In the figure: the mold comprises a fixed mold plate 10, a movable mold plate 11, a mold core 12, a first cooling pipe 13, a connecting pipe 14, a first water inlet and outlet pipe 15, a molding cavity 16, a second cooling pipe 17, a second water inlet and outlet pipe 18, a U-shaped channel 19, a push rod 20, a straight push block 21, a groove 22, a clamping edge groove 23, a connecting groove 24, a straight groove 25, a positioning groove 26, a positioning block 27 and a buckle frame 28.

Detailed Description

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

Referring to fig. 1-6, the cooling mechanism for the injection mold of the complex deep-cavity automobile glove box comprises a fixed mold plate 10 and a movable mold plate 11, wherein a mold core 12 is arranged on the end face, close to the movable mold plate 11, of the fixed mold plate 10, a plurality of first cooling pipes 13 are arranged in the mold core 12, the first cooling pipes 13 extend from one end of the mold core 12 to the other end of the mold core, connecting pipes 14 are further connected among the plurality of first cooling pipes 13, the connecting pipes 14 are communicated with the plurality of first cooling pipes 13, and two ends of each connecting pipe 14 are respectively connected with a first water inlet and outlet pipe 15.

In this embodiment, the plastic part is molded on the core 12 and adhered to the core 12, after the injection molding is completed, the cooling water flows into the first cooling pipes 13 through the first water inlet and outlet pipes 15, flows in the first cooling pipes 13 through the connecting pipes 14, so as to rapidly cool the plastic part, and finally flows out of the mold through the other water inlet and outlet pipes 15 and flows into the circulating device to be cooled, and then continuously flows into the mold to cool the plastic part.

The movable mould plate 11 is internally provided with a forming cavity 16 corresponding to the mould core 12, a plurality of second cooling pipes 17 are arranged on four sides of the forming cavity 16, a plurality of second water inlet and outlet pipes 18 are arranged in the movable mould plate 11, and two ends of each second water inlet and outlet pipe 18 extend out of the movable mould plate 11 and are communicated with the second cooling pipes 17 in a penetrating mode.

In this embodiment, during mold closing, the core 12 extends into the molding cavity 16 and forms an injection space with the molding cavity 16, and the plastic part is molded in the injection space. In the same principle as the cooling principle in the fixed die plate 10, during the cooling process, the cooling water flows into the plurality of second cooling pipes 17 through the second water inlet and outlet pipes 18 to cool the plastic part. In addition, because the cross section of the forming cavity 16 is larger than that of the core 12, and the surface area of the plastic part adhered to the forming cavity 16 is larger, in order to increase the cooling speed of the part, a plurality of second water inlet and outlet pipes 18 are arranged in the movable die plate 11, each second water inlet and outlet pipe 18 is communicated with a plurality of second cooling pipes 17, and a plurality of sections of cooling channels are arranged in the movable die plate 11, so that the cooling speed is increased.

The cross section of the connecting pipe 14 is smaller than that of the first cooling pipe 13, the cross section of the second water inlet and outlet pipe 18 is smaller than that of the second cooling pipe 17, and U-shaped channels 19 are arranged in the first cooling pipe 13 and the second cooling pipe 17.

In this embodiment, one of the ports of the U-shaped channel 19 is responsible for water inlet, the other port is responsible for water outlet, and the two ports of the U-shaped channel 19 are located at one end of the first cooling pipe 13 or the second cooling pipe 17, the turn of the U-shaped channel 19 is located at the other end, and completely covers the first cooling pipe 13 or the second cooling pipe 17, the flowing water direction is consistent and not disturbed, and each U-shaped channel 19 forms two sections of cooling parts, so as to accelerate the cooling speed.

The bottom of the molding cavity 16 is provided with a plurality of ejector rods 20, the bottom wall of the molding cavity 16 far away from the fixed mold plate 10 is arranged on a plane, and the ejector rods 20 are sequentially arranged along four side walls of the molding cavity 16.

In this embodiment, after the plastic part and the movable mold plate 11 are cooled and away from the fixed mold plate 10, a plurality of ejector rods 20 synchronously work to eject the plastic part from the bottom of the plastic part. In this in-process, it is great to mould the area sum of being connected between a bottom and a plurality of ejector pin 20, and a plurality of ejector pin 20 sets gradually along four lateral walls of diapire, and the ejection force that prevents that can be fine when ejecting to mould a piece is inhomogeneous can lead to inadequately mould a deformation, improves the qualification rate.

The port of the molding cavity 16 close to the fixed mold plate 10 is connected with a plurality of straight top blocks 21, and the molding cavity 16 is surrounded by the straight top blocks 21.

In this embodiment, during the shaping, the liquid of moulding plastics still can be in the round outer lane piece of the accent department shaping of shaping chamber 16, and the outer lane piece shaping is on the straight kicking block 21 of a plurality of, and at ejecting in-process, the straight kicking block 21 of a plurality of is ejecting with ejector pin 20 is synchronous, thereby the straight kicking block 21 of a plurality of pushes up on the outer lane piece will mould the piece ejecting, prevents that outer lane piece adhesion from leading to distortion on movable mould board 11.

A circle of groove 22 is further formed outside the port of the forming cavity 16, and a plurality of straight ejecting blocks 21 extend into the groove 22.

In the embodiment, during the forming, a circle formed in the groove 22 is protruded on the outer ring sheet, and each straight ejecting block 21 abuts against the circle, so that the part can be smoothly ejected in the ejection process and can be prevented from being distorted and deformed.

At least two sides of the straight top block 21 are respectively provided with a card edge groove 23 communicated with the groove 22, a connecting groove 24 is communicated between the two card edge grooves 23, and the connecting groove 24 penetrates through the straight top block 21.

In this embodiment, the connecting groove 24 and the corresponding two card edge grooves 23 form a card edge portion on the plastic part, and in the ejection process, the straight ejection block 21 is similar to the outer ring piece and the structure of a circle on the outer ring piece, and is abutted against and ejected from the card edge portion, so as to prevent the card edge portion from being distorted and deformed.

Four side walls of the forming cavity 16 are all provided with a plurality of straight grooves 25 which are arranged in parallel with the ejector rod 20 in a recessed mode, and the end portions, far away from the bottom wall of the forming cavity 16, of the straight grooves 25 penetrate through the forming cavity 16.

In this embodiment, the injection liquid forms a straight portion of the plastic in the straight groove 25, and the moving direction of the ejector rod 20 is the same as the placing direction of the straight portion during the ejection process, so that the portion can be ejected smoothly during the ejection.

The movable template 11 is provided with a positioning groove 26, and the fixed template 10 is provided with a positioning block 27 corresponding to the positioning groove 26.

In the present embodiment, the positioning block 27 extends into the positioning groove 26 to perform the positioning function during the mold clamping, and prevent the displacement of the fixed mold plate 10 and the movable mold plate 11 during the high pressure injection molding process.

The positioning groove 26 is communicated with the molding cavity 16, a buckle frame 28 for molding a plastic part is arranged in the positioning groove 26, a gap is formed between the buckle frame 28 and the notch of the positioning groove 26 close to the fixed mold plate 10, when the mold is closed, the positioning block 27 is abutted against the side wall of the positioning groove 26 and abutted against two ends of the buckle frame 28, and a gap is formed between the positioning block 27 and the inner wall of the buckle frame 28.

In the present embodiment, the positioning block 27 and the positioning groove 26 not only serve to position and prevent the fixed die plate 10 and the movable die plate 11 from being displaced, but also serve as a snap part for molding the plastic part. When the mold is closed, the positioning block 27 abuts against the side wall of the positioning groove 26 and abuts against the two ends of the buckle frame 28, and this step is used for positioning and preventing the fixed mold plate 10 and the movable mold plate 11 from being displaced. The gap between the positioning block 27 and the inner wall of the buckle frame 28 is used for forming the buckle part of the plastic part.

The utility model discloses a theory of operation: when the mold is closed, the movable mold plate 11 moves close to the fixed mold plate 10, so that the mold core 12 extends into the molding cavity 16 and forms an injection molding space with the molding cavity 16, the positioning block 27 abuts against the side wall of the positioning groove 26 and abuts against two ends of the buckle frame 28, and a gap is formed between the positioning block 27 and the inner wall of the buckle frame 28.

In the cooling process, the cooling water flows into the first cooling pipes 13 through the first water inlet and outlet pipes 15, flows in the plurality of first cooling pipes 13 through the connecting pipes 14, so as to rapidly cool the plastic parts, and flows into the plurality of second cooling pipes 17 through the second water inlet and outlet pipes 18 to cool the plastic parts.

During the ejection process, for example, the dry ejector rods 20 and the straight ejector block 21 move synchronously to eject the plastic part.

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 core 12, the first cooling pipe 13, the connecting pipe 14, the first water inlet/outlet pipe 15, the molding cavity 16, the second cooling pipe 17, the second water inlet/outlet pipe 18, the U-shaped channel 19, the ejector pin 20, the straight ejector block 21, the groove 22, the catching groove 23, the connecting groove 24, the straight groove 25, the positioning groove 26, the positioning block 27, the snap frame 28, etc., are used more frequently 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

1. The utility model provides a complicated dark chamber car glove box injection mold cooling body, includes fixed die plate (10) and movable mould board (11), its characterized in that, fixed die plate (10) be close to and be equipped with core (12) on the terminal surface of movable mould board (11), core (12) in be equipped with the first cooling tube of a plurality of (13), first cooling tube (13) extend to the other end from the one end of core (12), still be connected with between the first cooling tube of a plurality of (13) connecting pipe (14), connecting pipe (14) and a plurality of first cooling tube (13) intercommunication, the both ends of connecting pipe (14) be connected with a first business turn over water pipe (15) respectively.

2. The cooling mechanism for the injection mold of the complex deep-cavity automobile glove box is characterized in that a molding cavity (16) corresponding to the mold core (12) is arranged in the movable mold plate (11), a plurality of second cooling pipes (17) are arranged on four sides of the molding cavity (16), a plurality of second water inlet and outlet pipes (18) are arranged in the movable mold plate (11), and two ends of each second water inlet and outlet pipe (18) extend out of the movable mold plate (11) and are communicated with the plurality of second cooling pipes (17) in a penetrating mode.

3. The cooling mechanism of an injection mold of a complex deep-cavity automobile glove box according to claim 2, characterized in that the cross section of the connecting pipe (14) is smaller than that of the first cooling pipe (13), the cross section of the second water inlet and outlet pipe (18) is smaller than that of the second cooling pipe (17), and U-shaped channels (19) are arranged in the first cooling pipe (13) and the second cooling pipe (17).

4. The cooling mechanism of the injection mold of the complex deep-cavity automobile glove box is characterized in that a plurality of ejector rods (20) are arranged at the bottom of the molding cavity (16), the molding cavity (16) is far away from the bottom wall of the fixed mold plate (10) and is arranged in a plane, and the ejector rods (20) are sequentially arranged along four side walls of the molding cavity (16).

5. The cooling mechanism for the injection mold of the complex deep-cavity automobile glove box is characterized in that a plurality of straight top blocks (21) are connected to a port, close to the fixed mold plate (10), of the forming cavity (16), and the forming cavity (16) is surrounded by the straight top blocks (21).

6. The cooling mechanism of an injection mold of a complex deep-cavity automobile glove box according to claim 5, characterized in that a ring of grooves (22) are further formed outside the port of the molding cavity (16), and a plurality of straight ejector blocks (21) extend into the grooves (22).

7. The cooling mechanism of the injection mold of the complex deep-cavity automobile glove box is characterized in that two sides of at least two straight top blocks (21) are respectively provided with a clamping edge groove (23) communicated with the groove (22), a connecting groove (24) is communicated between the two clamping edge grooves (23), and the connecting groove (24) penetrates through the straight top blocks (21).

8. The cooling mechanism of an injection mold of a complex deep-cavity automobile glove box according to claim 7, characterized in that a plurality of straight grooves (25) arranged in parallel with the ejector rod (20) are recessed in four side walls of the molding cavity (16), and the end parts of the straight grooves (25) far away from the bottom wall of the molding cavity (16) penetrate through the molding cavity (16).

9. The cooling mechanism for the injection mold of the complex deep-cavity automobile glove box according to claim 8, characterized in that a positioning groove (26) is provided on the movable mold plate (11), and a positioning block (27) corresponding to the positioning groove (26) is provided on the fixed mold plate (10).

10. The cooling mechanism of an injection mold of a complex deep cavity automobile glove box according to claim 9, characterized in that the positioning groove (26) is communicated with the molding cavity (16), a buckling frame (28) for molding a plastic part is arranged in the positioning groove (26), a gap is formed between the buckling frame (28) and a notch of the positioning groove (26) close to the fixed mold plate (10), when the mold is closed, the positioning block (27) is abutted against the side wall of the positioning groove (26) and two ends of the buckling frame (28), and a gap is formed between the positioning block (27) and the inner wall of the buckling frame (28).