CN215943617U - Injection mold die cavity pressure and temperature measuring device - Google Patents
Injection mold die cavity pressure and temperature measuring device Download PDFInfo
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- CN215943617U CN215943617U CN202122314008.3U CN202122314008U CN215943617U CN 215943617 U CN215943617 U CN 215943617U CN 202122314008 U CN202122314008 U CN 202122314008U CN 215943617 U CN215943617 U CN 215943617U
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Abstract
The utility model relates to a pressure and temperature measuring device for a mold cavity of an injection mold, which comprises a movable mold core, a fixed mold core, an intermediate plate and a pressure sensor, wherein the movable mold core is fixed on the fixed mold core; the movable mold core is provided with a part of a movable mold cavity, the fixed mold core is provided with a fixed mold cavity, and the movable mold core and the fixed mold core are mutually closed to form a mold cavity; the pressure and temperature sensor penetrates through the movable mould core, and the top end surface of the pressure and temperature sensor and the movable mould core form a complete movable mould cavity; the top end surface of the pressure sensor is flush with the inner wall of the movable mould core, so that the pressure inside the mould cavity of the mould can be visually obtained. The utility model solves the technical problems of measuring the pressure and the temperature inside the die cavity of the die and ensuring the injection pressure and the injection temperature of the multi-cavity die to be consistent.
Description
Technical Field
The utility model belongs to the technical field of monitoring of pressure and temperature of a mold cavity of a mold, and particularly relates to a pressure and temperature monitoring device for the mold cavity of an injection mold.
Background
The injection mold is a tool used for mass production of plastic materials with complex shapes, and is also a tool for endowing plastic products with complete structures and accurate dimensions. Generally, a plastic raw material which is heated and melted is pushed by a screw of an injection molding machine, injected into a mold cavity of an injection mold at high pressure, cooled and solidified to obtain a plastic molded product. The injection mold consists of a movable mold and a fixed mold, wherein the movable mold is arranged on a movable template of the injection molding machine, and the fixed mold is arranged on a fixed template of the injection molding machine. And when the mold is opened, the movable mold is separated from the fixed mold so as to take out the plastic product.
In the link of injection molding of the mold, the screw of the injection molding machine pushes the plastic melt to fill the mold cavity of the mold, the pressure and temperature of the mold cavity of the mold are different under different molding process conditions, and the final molding quality of the product is influenced by the pressure and temperature of different mold cavities. For example, if the pressure is too high, plastic melt can overflow from the space between the movable die and the fixed die, and the product forms flash; if the pressure is too low, the plastic melt cannot well fill the die cavity of the die, so that the product is under-injected. Both of these types of products can cause product scrap and affect production efficiency. In the case of a multi-cavity mold, once the pressure in each cavity is different, the uniformity of the product between different cavities is poor, and even waste products are easily produced. The pressure and temperature of each mold cavity are different, and the deformation amount is different, so that individual products are possibly scrapped due to excessive deformation caused by different pressure and temperature of each mold cavity.
No patent documents relevant to the present application were found by search.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provides the injection mold cavity pressure and temperature measuring device which solves the technical problems of detecting the pressure and temperature in the mold cavity of a mold and ensuring the injection pressure and temperature of a multi-cavity mold to be consistent or controllable.
The technical problem to be solved by the utility model is realized by adopting the following technical scheme:
a kind of injection mould cavity pressure temperature apparatus, including moving template, fixed template, intermediate plate and pressure temperature pick-up; the movable mould plate is provided with a movable mould core, the fixed mould plate is provided with a fixed mould core, and the movable mould core and the fixed mould core are mutually closed to form a mould cavity; the pressure and temperature sensor penetrates through the movable mould core, and the tail end face of the pressure and temperature sensor and the movable mould core form a complete movable mould cavity; the pressure and temperature sensor is arranged on the middle plate.
And, the intermediate plate and the movable die plate are contacted and fixed by bolts.
And the upper end part of the pressure temperature sensor is flush with the inner wall of the movable mould core.
Moreover, the middle plate is provided with a groove for mounting the pressure and temperature sensor and a wire groove for mounting a cable connected with the pressure and temperature sensor; the depth of the groove is smaller than the thickness of the intermediate plate.
And the middle plate is provided with a fixing plate of the wire groove and is fixed on the middle plate through a countersunk head screw.
Two mold cavities are formed by closing the movable mold core and the fixed mold core; and an injection molding channel communicated with the main flow channel is arranged in the center of the movable mold core, and the injection molding channel is respectively connected with the two mold cavities.
And each mould cavity corresponds to one pressure and temperature sensor.
The utility model has the advantages and positive effects that:
in the design of the die, after plastic melt enters the die cavity of the die, pressure is generated on the whole die cavity of the die, the probe of the pressure and temperature sensor is arranged in the die cavity of the die, and when the melt with pressure and temperature contacts the pressure and temperature sensor in the die cavity of the die, the pressure and temperature sensor can visually obtain the pressure and temperature in the die cavity of the die; the device for monitoring the pressure and the temperature of the mold cavity of the mold is not only suitable for monitoring the pressure and the temperature of only one mold cavity of the mold, but also can well control the pressure balance of each mold cavity during injection molding by adjusting the molding process parameters of a multi-mold-cavity mold, thereby improving the product quality.
Drawings
FIG. 1 is a schematic structural diagram of a device for measuring pressure and temperature of a mold cavity according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an intermediate plate of a mold cavity pressure and temperature measuring device according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments, which are illustrative only and not limiting, and the scope of the present invention is not limited thereby.
As shown in fig. 1, an injection mold cavity pressure and temperature measuring apparatus includes: the device comprises a movable mould core 1, a movable mould 2, a fixed mould core 3, a fixed mould 4, an intermediate plate 5 and a pressure and temperature sensor 6; the movable mold 2 is provided with a movable mold insert 1, the movable mold insert 1 is provided with a movable mold cavity, the fixed mold 4 is provided with a fixed mold insert 3, the fixed mold insert 3 is provided with a fixed mold cavity, and the movable mold insert 1 and the fixed mold insert 3 are mutually closed to form a mold cavity 5; the pressure and temperature sensor 6 penetrates through the movable mould core 1, and the top end surface of the pressure and temperature sensor 6 and the movable mould core 1 form a complete movable mould cavity; the top end surface of the pressure temperature sensor 6 is flush with the inner wall of the movable mould core 1.
Because in the mold design, the top end surface of the pressure and temperature sensor 6 is arranged as a part of the movable mold cavity, after the plastic melt enters the mold cavity 7, the pressure is generated on the whole mold cavity 7, and the pressure and the temperature in the mold cavity 7 can be obtained visually by generating the pressure on the top end surface of the pressure and temperature sensor 6. The device for measuring the pressure and the temperature of the mold cavity 7 of the mold is not only suitable for measuring the pressure and the temperature of only one mold cavity of the mold, but also can well control the pressure balance of each mold cavity during injection molding of the mold with multiple mold cavities.
The pressure and temperature sensor 6 is arranged at a straight line distance of 10mm from the sprue 8, so that the sensitivity and the accuracy of the pressure and temperature sensor are well ensured.
The pressure and temperature sensor is positioned in the middle plate 5 and is connected with a cable for transmitting data, as shown in fig. 2, a groove 12 for mounting the pressure and temperature sensor and a wire groove 13 for mounting the cable connected with the pressure and temperature sensor are arranged on the middle plate 5; in order to prevent the cable of the pressure temperature sensor 6 from loosening and being damaged in the using process of the mould, a fixing plate 9 of the wire groove is required to be arranged on the middle plate 5, the fixing plate 9 of the wire groove is fixed on the middle plate 5 through a countersunk head screw 10, and the cable and a connector are fixed on the mould before the mould is tested so as to prevent the cable from being crushed.
In the injection mold cavity pressure and temperature measuring device provided by this embodiment, two mold cavities 7 are formed by closing the movable mold insert 1 and the fixed mold insert 3; the center of the movable mould core 1 is provided with a flow channel communicated with the main flow channel 11, and the flow channel is respectively connected with the two mould cavities 7. Set up two mould die cavities 7 and can accelerate the production speed of product, carry out pressure temperature measurement to two mould die cavities 7 simultaneously moreover, can be through the contrast, better adjust the pressure temperature of mould die cavity 7, make injection pressure keep balance, guarantee the stable production of product. The mold cavity pressure and temperature measuring device provided by the embodiment can adapt to molds with more mold cavities. For a multi-cavity mold, the pressure and temperature balance of each cavity during injection molding can be well controlled.
Although the embodiments of the present invention and the accompanying drawings are disclosed for illustrative purposes, those skilled in the art will appreciate that: various substitutions, changes and modifications are possible without departing from the spirit and scope of the utility model and the appended claims, and therefore the scope of the utility model is not limited to the disclosure of the embodiments and the accompanying drawings.
Claims (6)
1. The utility model provides an injection mold die cavity pressure temperature measuring device which characterized in that: the device comprises a movable template, a fixed template, an intermediate plate and a pressure temperature sensor; the movable mould plate is provided with a movable mould core, the fixed mould plate is provided with a fixed mould core, and the movable mould core and the fixed mould core are mutually closed to form a mould cavity; the pressure and temperature sensor penetrates through the movable mould core, and the tail end face of the pressure and temperature sensor and the movable mould core form a complete movable mould cavity; the pressure and temperature sensor is arranged on the middle plate.
2. The injection mold cavity pressure temperature measurement device of claim 1, wherein: the intermediate plate is in contact with the movable template and is fixed by bolts.
3. The injection mold cavity pressure temperature measurement device of claim 1, wherein: the upper end part of the pressure temperature sensor is flush with the inner wall of the movable mould core.
4. The injection mold cavity pressure and temperature measuring device of claim 1, wherein the intermediate plate is provided with a groove for mounting the pressure and temperature sensor and a wire groove for mounting a cable connected to the pressure and temperature sensor; the depth of the groove is smaller than the thickness of the intermediate plate.
5. The injection mold cavity pressure and temperature measuring device of claim 1, wherein the intermediate plate is provided with a fixing plate of the wire groove and fixed on the intermediate plate by a countersunk head screw.
6. The apparatus for measuring the pressure and temperature of the molding cavity of an injection mold according to claim 1, wherein two molding cavities are formed by closing the movable mold core and the fixed mold core; and an injection molding channel communicated with the main flow channel is arranged in the center of the movable mold core, and the injection molding channel is respectively connected with the two mold cavities.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122314008.3U CN215943617U (en) | 2021-09-24 | 2021-09-24 | Injection mold die cavity pressure and temperature measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122314008.3U CN215943617U (en) | 2021-09-24 | 2021-09-24 | Injection mold die cavity pressure and temperature measuring device |
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| Publication Number | Publication Date |
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| CN215943617U true CN215943617U (en) | 2022-03-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122314008.3U Active CN215943617U (en) | 2021-09-24 | 2021-09-24 | Injection mold die cavity pressure and temperature measuring device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115320050A (en) * | 2022-09-06 | 2022-11-11 | 健大电业制品（昆山）有限公司 | Multi-cavity injection molding method |
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2021
- 2021-09-24 CN CN202122314008.3U patent/CN215943617U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115320050A (en) * | 2022-09-06 | 2022-11-11 | 健大电业制品（昆山）有限公司 | Multi-cavity injection molding method |
| CN115320050B (en) * | 2022-09-06 | 2024-04-09 | 健大电业制品（昆山）有限公司 | Multi-cavity injection molding method |
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