CN210525768U

CN210525768U - Injection mold capable of being cooled and demolded uniformly

Info

Publication number: CN210525768U
Application number: CN201921111998.7U
Authority: CN
Inventors: 郑海文
Original assignee: Dongguan Guanglian Plastic Mold Products Co ltd
Current assignee: Dongguan Guanglian Plastic Mold Products Co ltd
Priority date: 2019-07-16
Filing date: 2019-07-16
Publication date: 2020-05-15
Anticipated expiration: 2029-07-16

Abstract

An injection mold capable of being cooled and demolded uniformly, comprising: roof, upper die base, die holder, backup pad, ejection mechanism, bottom plate and jet-propelled mechanism form the cavity of moulding plastics between upper die base and the die holder, and jet-propelled mechanism includes: jet-propelled pipe, slider and spring, jet-propelled pipe and air conditioning output device intercommunication, jet-propelled pipe extend to inside from the outside of the chamber of moulding plastics, and the slider is located between jet-propelled pipe and the spring, has the slip track on the lateral wall of upper die base, and slider and spring all are located in the slip track, the one end and the slider butt of spring, the other end and the orbital inner wall butt that slides. The injection mold with the structure can realize the technical effect of uniform cooling after injection molding, and can greatly improve the cooling efficiency.

Description

Injection mold capable of being cooled and demolded uniformly

Technical Field

The utility model relates to an injection mold especially relates to an injection mold of drawing of patterns can evenly cool off.

Background

An injection mold is a tool for producing plastic products; and is also a tool for giving the plastic product complete structure and accurate dimension. Injection molding is a processing method used for mass production of parts with complex shapes, and particularly relates to a method for injecting heated and melted plastic into a mold cavity from an injection molding machine at high pressure, and obtaining a formed product after cooling and solidification.

Chinese patent CN108081558 discloses an injection mold capable of accelerating cooling and demolding of injection products, including the upper die base, the die holder, the compound die hydro-cylinder, product ejection mechanism and air-blowing cooling device, the compound die hydro-cylinder is connected with the upper die base, the die holder includes die holder framework and collet, die holder framework and collet swing joint, product ejection mechanism sets up in the die holder bottom, the inside interior cold passageway that all is equipped with of upper die base and die holder, upper die base and die holder left end are equipped with the air conditioning entry, the air conditioning entry passes through the pipeline and is connected with air-blowing cooling device. The air blowing cooling device can simultaneously blow air and cool the upper die base and the lower die base, so that the demolding speed of the injection molding product and the upper die base and the lower die base is increased, and the injection molding demolding efficiency is improved.

However, the blow cooling device of the injection mold can blow air only toward one position, cooling is not uniform, and cooling efficiency is low.

SUMMERY OF THE UTILITY MODEL

The utility model discloses technical scheme is to above-mentioned condition, but provides an injection mold of even cooling drawing of patterns in order to solve above-mentioned problem, injection mold includes: roof, upper die base, die holder, backup pad, ejection mechanism, bottom plate and jet-propelled mechanism, the roof the upper die base the die holder the backup pad, ejection mechanism greatly and the bottom plate is arranged from last to lower in proper order, the upper die base with form the cavity of moulding plastics between the die holder, jet-propelled mechanism includes: the injection molding device comprises an injection pipe, a sliding block and a spring, wherein the injection pipe is communicated with a cold air output device, the injection pipe extends from the outside to the inside of the injection molding chamber, and the sliding block is positioned between the injection pipe and the spring; the lateral wall of the upper die base is provided with a sliding track, the extending direction of the sliding track is perpendicular to the extending direction of the gas injection pipe, the sliding block and the spring are both positioned in the sliding track, one end of the spring is abutted against the sliding block, and the other end of the spring is abutted against the inner wall of the sliding track.

Furthermore, the number of the air injection mechanisms and the number of the sliding rails are four, two sliding rails are located on one side wall of the upper die base, and the other two sliding rails are located on the other side wall opposite to the side wall.

Furthermore, one end of the sliding block is provided with a positioning groove, the other end of the sliding block is provided with an outer sealing plate and an inner sealing plate, and the middle part of the gas ejector pipe is embedded in the positioning groove; the edge of the upper die holder is also provided with an outer sliding groove and an inner sliding groove, the outer sealing plate is movably arranged in the outer sliding groove, and the inner sealing plate is movably arranged in the inner sliding groove.

Further, the injection mold further comprises: a cooling mechanism, the cooling mechanism comprising: the injection molding device comprises a titanium cooling pipe, a heat conduction pipe and a positioning plate, wherein the heat conduction pipe is located inside the injection molding cavity, the titanium cooling pipe is connected with the heat conduction pipe and extends to the outside of the injection molding cavity, the positioning plate and the upper die base are fixed, and the titanium cooling pipe penetrates through the positioning plate.

Furthermore, the number of the cooling mechanisms is two, and the two cooling mechanisms are arranged oppositely.

Further, the cooling mechanism has two titanium cooling pipes and two heat conductive pipes, which are separated from each other in the horizontal direction.

After the technical scheme is adopted, the utility model discloses an effect is: the injection mold with the structure can realize the technical effect of uniform cooling after injection molding, and can greatly improve the cooling efficiency.

Drawings

Fig. 1 is a schematic view of an injection mold according to the present invention;

FIG. 2 is a cross-sectional view of the injection mold of the present invention along section line A-A;

fig. 3 is a schematic view of a slider according to the present invention.

Detailed Description

It is specifically noted that the terms "first", "second" and "third" in the present application are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise. All directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, and the like in a specific posture, and if the specific posture is changed, the directional indicator is changed accordingly.

The technical solution of the present invention is further described below by way of examples:

the utility model provides an injection mold of drawing of patterns can evenly cool off, as shown in figure 1, injection mold includes: roof 1, upper die base 2, die holder 3, backup pad 4, ejection mechanism 5, bottom plate 6, jet-propelled mechanism 7 and cooling body 8, roof 1, upper die base 2, die holder 3, backup pad 4, ejection mechanism 5 and bottom plate 6 are arranged from last to lower in proper order, as shown in fig. 2, form the cavity 21 of moulding plastics between upper die base 2 and the die holder 3, jet-propelled mechanism 7 and cooling body 8 all extend to inside from the outside of the cavity 21 of moulding plastics. The utility model discloses an injection mold's the principle of moulding plastics is the same with prior art, no longer gives unnecessary details here.

The air injection mechanism 7 includes: an air nozzle 71, a slide block 72 and a spring 73, wherein the air nozzle 71 is communicated with a cold air output device (not shown in the figure), the air nozzle 71 extends from the outside to the inside of the injection molding chamber 21, and the slide block 72 is positioned between the air nozzle 71 and the spring 73. The side wall of the upper die holder 2 is provided with a sliding rail 22, the extending direction of the sliding rail 22 is vertical to the extending direction of the gas ejector 71, the sliding block 72 and the spring 73 are both positioned in the sliding rail 22, one end of the spring 73 is abutted against the sliding block 72, and the other end is abutted against the inner wall of the sliding rail 22. After the injection mold finishes the injection molding operation, the air nozzle 71 can move back and forth, and at this time, the slider 72 moves back and forth in the sliding rail 22 against the elastic force of the spring 73, so that the cold air is uniformly and rapidly blown to the plastic product, thereby realizing the cooling operation. After cooling is complete, the spring force of the spring 73 may urge the gas lance 71 back to the initial position.

Specifically, in the present embodiment, the number of the air injection mechanism 7 and the number of the slide rails 22 are four, two slide rails 22 are provided on one side wall of the upper die holder 2, and the other two slide rails 22 are provided on the other side wall opposite to the above side wall.

Specifically, as shown in fig. 2 and 3, the slider 72 has a positioning groove 721 at one end and an outer seal plate 722 and an inner seal plate 723 at the other end. The middle part of the gas lance 71 is embedded in the positioning slot 721, thereby preventing the gas lance 71 from deflecting; the edge of the upper die holder 2 further has an outer slide groove 23 and an inner slide groove 24, the outer seal plate 722 is movably disposed in the outer slide groove 23, and the inner seal plate 723 is movably disposed in the inner slide groove 24. The outer and

inner seal plates

722, 723 may prevent impurities from entering the sliding track, causing a problem of failure of the spring 73.

Specifically, with continued reference to fig. 2, the cooling mechanism 8 includes: the injection molding device comprises a titanium cooling pipe 81, a heat conducting pipe 82 and a positioning plate 83, wherein the heat conducting pipe 82 is located inside the injection molding cavity 21, the titanium cooling pipe 81 is connected with the heat conducting pipe 82 and extends to the outside of the injection molding cavity 21, the positioning plate 83 is fixed with the upper die holder 2, and the titanium cooling pipe 81 penetrates through the positioning plate 83. Through cooling body 8 and plastic product contact, can accelerate thermal derivation, improve cooling efficiency.

More specifically, the cooling mechanism 8 is two, the two cooling mechanisms 8 are disposed opposite to each other, the cooling mechanism 8 has two titanium cooling pipes 81 and two heat transfer pipes 82, and the two heat transfer pipes 82 are separated from each other in the horizontal direction. Thereby further improving the uniformity and efficiency of the cooling operation.

Therefore, the injection mold with the structure can realize the technical effect of uniform cooling after injection molding and greatly improve the cooling efficiency.

The above-mentioned embodiments are merely preferred examples of the present invention, and do not limit the scope of the present invention, so all equivalent changes or modifications made by the structure, features and principles of the present invention should be included in the claims of the present invention.

Claims

1. An injection mold capable of being uniformly cooled and demolded, the injection mold comprising: roof, upper die base, die holder, backup pad, ejection mechanism, bottom plate and jet-propelled mechanism, the roof the upper die base the die holder the backup pad, ejection mechanism greatly and the bottom plate is from last to arranging down in proper order, the upper die base with form the cavity of moulding plastics between the die holder, its characterized in that: the air injection mechanism comprises: the injection molding device comprises an injection pipe, a sliding block and a spring, wherein the injection pipe is communicated with a cold air output device, the injection pipe extends from the outside to the inside of the injection molding chamber, and the sliding block is positioned between the injection pipe and the spring; the lateral wall of the upper die base is provided with a sliding track, the extending direction of the sliding track is perpendicular to the extending direction of the gas injection pipe, the sliding block and the spring are both positioned in the sliding track, one end of the spring is abutted against the sliding block, and the other end of the spring is abutted against the inner wall of the sliding track.

2. The injection mold capable of being cooled and demolded uniformly as set forth in claim 1, wherein: the air injection mechanism and the sliding rails are four, two sliding rails are located on one side wall of the upper die base, and the other two sliding rails are located on the other side wall opposite to the side wall.

3. The injection mold capable of being cooled and demolded uniformly as set forth in claim 1, wherein: one end of the sliding block is provided with a positioning groove, the other end of the sliding block is provided with an outer sealing plate and an inner sealing plate, and the middle part of the gas ejector pipe is embedded in the positioning groove; the edge of the upper die holder is also provided with an outer sliding groove and an inner sliding groove, the outer sealing plate is movably arranged in the outer sliding groove, and the inner sealing plate is movably arranged in the inner sliding groove.

4. The injection mold capable of being cooled and demolded uniformly as set forth in claim 1, wherein: the injection mold further comprises: a cooling mechanism, the cooling mechanism comprising: the injection molding device comprises a titanium cooling pipe, a heat conduction pipe and a positioning plate, wherein the heat conduction pipe is located inside the injection molding cavity, the titanium cooling pipe is connected with the heat conduction pipe and extends to the outside of the injection molding cavity, the positioning plate and the upper die base are fixed, and the titanium cooling pipe penetrates through the positioning plate.

5. The injection mold capable of being cooled and demolded uniformly as set forth in claim 4, wherein: the number of the cooling mechanisms is two, and the two cooling mechanisms are arranged oppositely.

6. The injection mold capable of being cooled and demolded uniformly as set forth in claim 5, wherein: the cooling mechanism is provided with two titanium cooling pipes and two heat conduction pipes, and the two heat conduction pipes are separated from each other along the horizontal direction.