CN222201580U - Injection mold capable of rapidly filling cavity - Google Patents
Injection mold capable of rapidly filling cavity Download PDFInfo
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- CN222201580U CN222201580U CN202420723571.7U CN202420723571U CN222201580U CN 222201580 U CN222201580 U CN 222201580U CN 202420723571 U CN202420723571 U CN 202420723571U CN 222201580 U CN222201580 U CN 222201580U
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Abstract
本实用新型有关一种快速填充型腔的注塑模具，属于注塑模具技术领域。包括依次排列的顶板、定模板、动模板、脚板和底板，定模板和动模板之间设有成型腔，脚板内侧设有脱模机构，顶板上设有注塑口，定模板内部设有与注塑口相连接的储存腔，储存腔底部设有进料孔，进料孔与成型腔相连接，动模板内部设有用于封堵进料孔的伸缩杆，伸缩杆的底部设有控制伸缩杆伸缩的液压缸，液压缸与脱模机构固连，储存腔底部设有压力传感器；在本方案中，注入模具的塑料熔液先储存在储存腔中，储存腔起到储存和增压的作用，当底部的进料孔与成型腔连通后，增压后的熔液能快速进入成型腔中，减短了熔液填充成型腔的时间。
The utility model relates to an injection mold for rapidly filling a mold cavity, and belongs to the technical field of injection molds. The utility model comprises a top plate, a fixed mold plate, a movable mold plate, a foot plate and a bottom plate arranged in sequence, a molding cavity is arranged between the fixed mold plate and the movable mold plate, a demoulding mechanism is arranged on the inner side of the foot plate, an injection port is arranged on the top plate, a storage cavity connected to the injection port is arranged inside the fixed mold plate, a feed hole is arranged at the bottom of the storage cavity, the feed hole is connected to the molding cavity, a telescopic rod for blocking the feed hole is arranged inside the movable mold plate, a hydraulic cylinder for controlling the telescopic rod to be extended and retracted is arranged at the bottom of the telescopic rod, the hydraulic cylinder is fixedly connected to the demoulding mechanism, and a pressure sensor is arranged at the bottom of the storage cavity; in this scheme, the plastic melt injected into the mold is first stored in the storage cavity, and the storage cavity plays the role of storage and pressurization. When the feed hole at the bottom is connected to the molding cavity, the pressurized melt can quickly enter the molding cavity, thereby shortening the time for the melt to fill the molding cavity.
Description
Technical Field
The utility model belongs to the technical field of injection molds, and relates to an injection mold capable of rapidly filling a cavity.
Background
The plastic products are mostly manufactured by adopting a mode of mould injection molding, the plastic raw materials are heated to a molten state, then plastic melt is injected into a mould through a feeding mechanism, a forming cavity for forming a corresponding product structure is formed in the mould, after the forming cavity is filled with the melt, the melt in the forming cavity is subjected to cooling treatment, so that the raw materials in the forming cavity are cooled and formed into plastic products, the mould is opened through a mould opening mechanism and a demoulding mechanism, and the products in the forming cavity are separated from the mould.
However, the injection mold in the prior art still has some defects, in the injection molding process, the feeding mechanism generates pressure to inject the plastic melt into the molding cavity, so that the pressure applied by the outside has direct influence on the speed of filling the melt into the molding cavity, the melt can be rapidly filled into the molding cavity, the production efficiency can be improved, meanwhile, the temperature reduction caused by the melt in the filling process can be reduced, and the fluidity of the melt in the molding cavity can be improved.
Disclosure of Invention
The utility model aims at solving the problems of the prior art and provides an injection mold capable of rapidly filling a cavity.
The injection mold comprises a top plate, a fixed template, a movable template, a foot plate and a bottom plate which are sequentially arranged, wherein a molding cavity is arranged between the fixed template and the movable template, a demolding mechanism is arranged on the inner side of the foot plate, an injection molding opening is arranged on the top plate, a storage cavity connected with the injection molding opening is arranged in the fixed template, a feeding hole is formed in the bottom of the storage cavity, the feeding hole is connected with the molding cavity, a telescopic rod for blocking the feeding hole is arranged in the movable template, a hydraulic cylinder for controlling the telescopic rod to stretch is arranged at the bottom of the telescopic rod, the hydraulic cylinder is fixedly connected with the demolding mechanism, and a pressure sensor is arranged at the bottom of the storage cavity.
In this scheme, the shaping chamber is the space that is used for forming the injection molding product between movable mould board and the fixed mould board, the plastics melt enters into the storage chamber of bottom from the mouth of moulding plastics, because the feed port of storage chamber bottom is sealed by the telescopic link, the plastics melt can be stored in the storage chamber, because the continuous injection of outside plastics melt is in the storage chamber, the pressure in the storage chamber can constantly increase, when inside pressure reaches predetermined numerical value, pressure sensor can be with signal transmission to the pneumatic cylinder on, the pneumatic cylinder control telescopic link removes, make the feed port communicate with the shaping chamber of bottom, the plastics melt in the storage chamber is under the effect of pressure, pour into in the shaping chamber fast, carry out quick packing to the shaping chamber, after cooling shaping, the product of shaping is ejecting from the shaping intracavity through demoulding mechanism. Through the mode, the plastic melt injected into the die is stored in the storage cavity, the storage cavity plays a role in storage and pressurization, and when the feeding hole at the bottom is communicated with the forming cavity, the pressurized melt can rapidly enter the forming cavity, so that the time for filling the forming cavity with the melt is shortened, and the influence of temperature loss on the fluidity of the melt is reduced.
In the injection mold with the rapid filling cavity, the demolding mechanism comprises an upper pushing plate and a lower pushing plate, a plurality of fixedly connected straight ejector rods are arranged on the upper pushing plate, the tops of the straight ejector rods are connected with the molding cavity, and the hydraulic cylinder is fixedly connected with the lower pushing plate in the demolding mechanism. In the demolding process, the lower pushing plate can be pushed to move upwards, the lower pushing plate can drive the upper pushing plate and the straight ejector rod to move together, the straight ejector rod moves upwards to extend out of the upper surface of the driven template, and the product is ejected from the molding cavity to be demolded.
In the injection mold for rapidly filling the cavity, an inclined ejector block is arranged in the movable mold plate, an inclined ejector rod fixedly connected is arranged at the bottom of the inclined ejector block, a sliding seat is arranged in the upper pushing plate, and the sliding seat is fixedly connected with the lower pushing plate. The product can be ejected obliquely by matching the oblique ejector block with the oblique ejector rod, and the product can be ejected from the die better by matching the oblique ejector rod with the straight ejector rod.
In the injection mold for rapidly filling the cavity, the inner side of the sliding seat is provided with the sliding rail, the sliding block in sliding connection is arranged in the sliding rail, the bottom of the inclined ejector rod is provided with the pin shaft, and the inclined ejector rod is hinged with the sliding seat through the cooperation of the pin shaft and the sliding block. Because the inclined ejector rod moves obliquely in the movable template, the inclined ejector rod needs to be hinged with the sliding seat, and the angle between the inclined ejector rod and the upper push plate can be changed in the upward moving process of the lower push plate.
In the injection mold for rapidly filling the cavity, the movable mold plate is provided with the fixedly connected guide post, the fixed mold plate is provided with the guide sleeve, and the guide post is in sliding connection with the guide sleeve. The guide post is matched with the guide sleeve, and plays a role in guiding in the processes of die opening and die closing of the die.
In the injection mold for rapidly filling the cavity, a plurality of cooling flow passages are arranged on the movable mold plate and the fixed mold plate, and the cooling flow passages are arranged on the upper side and the lower side of the molding cavity. Cooling liquid flows into the cooling flow channel, so that the interior of the molding cavity can be rapidly cooled, the cooling speed of the plastic melt is improved, and the injection molding efficiency is improved.
Compared with the prior art, the utility model has the following advantages:
1. In this scheme, the plastics melt of injection mould is stored in the bin earlier, and the bin plays the effect of storing and pressure boost, and after the feed port and the shaping chamber intercommunication of bottom, the melt after the pressure boost can get into the shaping die cavity fast, has shortened the time that the melt was filled into the shaping die cavity.
2. In this scheme, when the pressure of inside in the storage chamber reaches predetermined numerical value, pressure sensor can be with signal transmission to the pneumatic cylinder on, the pneumatic cylinder control telescopic link removes, makes feed port and bottom shaping chamber intercommunication, and pressure sensor can also avoid the melt pressure in the storage chamber too high simultaneously.
Drawings
FIG. 1 is a schematic perspective view of the present utility model;
FIG. 2 is a schematic diagram of the front view of the present utility model;
FIG. 3 is a schematic view of the cross-sectional structure of the A-site of FIG. 2 in accordance with the present utility model;
FIG. 4 is a schematic view of the cross-sectional structure of the utility model at B-B in FIG. 2;
FIG. 5 is a schematic diagram of the explosive structure of the inclined ejector rod of the present utility model.
In the figure, 1, a top plate, 1a, an injection molding port, 1b, a storage cavity, 1b1, a pressure sensor, 1b2, a feed hole, 2, a fixed template, 2a, a guide sleeve, 3, a movable template, 3a, a guide post, 4, a foot plate, 4a, an upper push plate, 4b, a lower push plate, 4c, a straight push rod, 5, a bottom plate, 6, a molding cavity, 7, a telescopic rod, 7a, a hydraulic cylinder, 8, an inclined push block, 8a, an inclined push rod, 8b, a pin shaft, 9, a sliding seat, 9a, a sliding rail, 9a1, a sliding block, 10 and a cooling runner.
Detailed Description
The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.
Examples
As shown in fig. 1, the injection mold for rapidly filling the cavity comprises a top plate 1, a fixed template 2, a movable template 3, a foot plate 4 and a bottom plate 5 which are sequentially arranged, wherein an upper push plate 4a and a lower push plate 4b which reciprocate are arranged on the inner side of the foot plate 4, the upper push plate 4a and the lower push plate 4b are fixedly connected, and an injection molding port 1a is formed in the top plate 1.
As shown in fig. 3, a molding cavity 6 for injection molding is arranged between the fixed die plate 2 and the movable die plate 3, a storage cavity 1b is arranged inside the fixed die plate 2, the storage cavity 1b is connected with an injection molding opening 1a, a feeding hole 1b2 is arranged at the bottom of the molding cavity 6, the bottom of the feeding hole 1b2 is connected with the molding cavity 6, a telescopic rod 7 for plugging is arranged below the feeding hole 1b2, the bottom of the telescopic rod 7 penetrates through the movable die plate 3 and is fixedly connected with a hydraulic cylinder 7a arranged on a lower push plate 4b, the hydraulic cylinder 7a is fixedly connected with the lower push plate 4b, a straight ejector rod 4c and an inclined ejector block 8 are arranged inside the movable die plate 3, the bottom of the straight ejector rod 4c is fixedly connected with the upper push plate 4a, an inclined ejector rod 8a fixedly connected below the inclined ejector block 8a is arranged inside the movable die plate 3 in an inclined manner.
As shown in fig. 4, the movable mold plate 3 is provided with a guide post 3a fixedly connected, the fixed mold plate 2 is provided with a guide sleeve 2a, the guide post 3a is slidably connected with the guide sleeve 2a, the movable mold plate 3 is fixedly connected with the foot plate 4, and the top plate 1 is fixedly connected with the fixed mold plate 2.
As shown in fig. 3 and 5, the lower push plate 4b is provided with a fixedly connected slide seat 9, two sides inside the slide seat 9 are provided with slide rails 9a, a sliding block 9a1 in sliding connection is arranged inside the slide rails 9a, the bottom of the inclined push rod 8a is provided with a pin shaft 8b, and the bottom of the inclined push rod 8a is hinged with the slide seat 9 through the cooperation of the pin shaft 8b and the sliding block 9a 1.
The working principle of the scheme is as follows, as shown in fig. 1-5, after a die and a die are closed, a hydraulic cylinder 7a controls a telescopic rod 7 to extend out, the bottom of a feeding hole 1b2 is plugged, an external feeding mechanism heats plastic raw materials to a molten state, the plastic raw materials are injected into the die from an injection molding opening 1a, the plastic molten materials can be stored in a storage cavity 1b, the external plastic molten materials are continuously injected into the storage cavity 1b, the pressure in the storage cavity 1b can be continuously increased, when the internal pressure reaches a preset value, a pressure sensor 1b1 transmits signals to the hydraulic cylinder 7a, the hydraulic cylinder 7a controls the telescopic rod 7 to move downwards, the feeding hole 1b2 is communicated with a forming cavity 6 at the bottom, the plastic molten materials in the storage cavity 1b are rapidly injected into the forming cavity 6 under the action of pressure, after the filling is completed, the cooling liquid flows into a cooling channel, the die is cooled, products in the forming cavity 6 can be rapidly cooled and formed, the die is opened through the die opening mechanism, a push plate 4a and a push rod 4b and a push rod 4c are pushed out, and simultaneously the products in the injection molding cavity 6 are ejected out, and the products in the injection molding cavity is completed.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.
Although terms of 1, top plate, 1a, injection port, 1b, storage chamber, 1b1, pressure sensor, 1b2, feed port, 2, fixed platen, 2a, guide sleeve, 3, moving platen, 3a, guide post, 4, foot plate, 4a, upper push plate, 4b, lower push plate, 4c, straight ejector pin, 5, bottom plate, 6, forming cavity, 7, telescoping rod, 7a, hydraulic cylinder, 8, angled ejector block, 8a, angled ejector rod, 8b, pin shaft, 9, slide, 9a, slide rail, 9a1, slide block, 10, cooling runner, etc. are used more herein, the use of other terms is not precluded. These terms are only used to more conveniently describe and explain the nature of the utility model and should be construed in a manner consistent with their spirit and scope.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420723571.7U CN222201580U (en) | 2024-04-09 | 2024-04-09 | Injection mold capable of rapidly filling cavity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420723571.7U CN222201580U (en) | 2024-04-09 | 2024-04-09 | Injection mold capable of rapidly filling cavity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222201580U true CN222201580U (en) | 2024-12-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420723571.7U Active CN222201580U (en) | 2024-04-09 | 2024-04-09 | Injection mold capable of rapidly filling cavity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222201580U (en) |
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2024
- 2024-04-09 CN CN202420723571.7U patent/CN222201580U/en active Active
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