CN210221434U - Measuring jig for detecting air tightness of mold cavity - Google Patents
Measuring jig for detecting air tightness of mold cavity Download PDFInfo
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- CN210221434U CN210221434U CN201921308025.2U CN201921308025U CN210221434U CN 210221434 U CN210221434 U CN 210221434U CN 201921308025 U CN201921308025 U CN 201921308025U CN 210221434 U CN210221434 U CN 210221434U
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- air inlet
- inlet pipeline
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Abstract
The utility model discloses a measurement tool for mould cavity gas tightness is examined belongs to mould cavity gas tightness check out test set field, the on-line screen storage device comprises a base, the bottom of base is inside to be offered the notch that is used for holding the mould, and the top middle part of base set up with the air inlet pipeline of notch top middle part intercommunication, it is equipped with two at least exhaust pipes with notch top intercommunication to lie in the air inlet pipeline outside on the base, the top of base is fixed with the pipeline with air inlet pipeline intercommunication, and air inlet pipeline's inner wall installs the atmospheric pressure inductor, the inside of notch is provided with second sealing mechanism. The utility model discloses a mutual cooperation between first mechanism and the second mechanism for above-mentioned the two can be respectively to the high-pressure gas who lets in and the mould between and the gas between first sealing mechanism and the second sealing mechanism seal the protection, reduce to this and let in the high-pressure gas and have the influence of gas leakage phenomenon to mould die cavity gas tightness testing result.
Description
Technical Field
The utility model relates to a mould cavity gas tightness check out test set field, specificly relate to a measurement tool that is used for mould cavity gas tightness to examine.
Background
The mold is used for obtaining various molds and tools of required products by injection molding, blow molding, extrusion, die casting or forging forming, smelting, stamping and other methods in industrial production; in short, a mold is a tool used to make a shaped article, the tool being made up of various parts, different molds being made up of different parts; with the rapid development of industrial technology, the application field of the die is continuously expanded, so that a device for detecting the air tightness in the die cavity is innovated and designed, and the quality of die production is important.
The existing gas tightness detection device for the mold cavity cannot perform better sealing protection between a detection mold and the detection device, so that the filled high-pressure gas leaks outside at a mold runner opening, the quantity of the whole gas leaking outside the mold is increased, the accuracy of a gas tightness detection result inside the mold cavity is influenced, the use performance of the measurement jig is reduced, and therefore the urgent need is brought to research of the measurement jig for detecting the gas tightness of the mold cavity.
SUMMERY OF THE UTILITY MODEL
1. Technical problem to be solved
The utility model discloses solve present gas tightness detection device that has mould cavity to use, owing to can not carry out better sealed protection between detection mould and the detection device to the high-pressure gas that leads to filling produces the hourglass outside mould runner mouth department, and then increases the whole gaseous volume that leaks outside the mould, and then has caused the influence to the accuracy of the inside gas tightness testing result of mould cavity, the technical problem who has reduced the service property of measuring tool simultaneously lies in providing a measurement tool that is used for mould cavity gas tightness to examine.
2. Technical scheme
In order to solve the above problem, the utility model adopts the following technical scheme:
a measuring jig for detecting the air tightness of a mold cavity comprises a base, wherein a notch for accommodating a mold is formed in the bottom end of the base, an air inlet pipeline communicated with the middle of the top end of the notch is formed in the middle of the upper portion of the base, at least two air exhaust pipelines communicated with the top end of the notch are arranged on the outer side of the air inlet pipeline on the base, a conveying pipeline communicated with the air inlet pipeline is fixed at the top end of the base, and an air pressure sensor is mounted on the inner wall of the air inlet pipeline;
a second sealing mechanism is arranged inside the notch, an upper connecting plate fixedly connected with the inner wall of the top end of the notch is arranged inside the second sealing mechanism, the upper connecting plate surrounds the outer side of the lower port of the air inlet pipeline in an annular shape, a sealing gasket playing a sealing role is arranged between the upper connecting plate and the inner wall of the top end of the notch, a spring is fixed on the bottom end surface of the upper connecting plate through a screw, a lower connecting plate which is parallel to the upper connecting plate and is annular is fixedly connected to the bottom end surface of the spring, a first sealing block is bonded to the bottom end surface of the lower connecting plate, a sealing rubber sheet surrounding the outer side of the lower port of the air inlet pipeline is arranged on the outer side of the spring, and the upper end and the lower end of the sealing rubber sheet are fixedly connected with;
the outside of second sealing mechanism is equipped with the first sealing mechanism who is annular column structure, and the inside of first sealing mechanism is equipped with to set up on the base and be linked together all around with the notch top and be annular installation and hold the chamber to the internally mounted that the installation holds the chamber has the gasbag that is annular structure, the top of gasbag is provided with the air pump with base fixed connection, and the defeated gas end of air pump is connected with and runs through in the installation hold the connecting tube that the chamber top is inside and be connected with the gasbag top, and the bottom surface of gasbag glues glutinous and has the sealed piece of second.
Preferably, the upper end of the conveying pipeline is connected with a high-pressure air source, and air pressure sensors are mounted at the upper end and the lower end of the inner wall of the air inlet pipeline.
Preferably, the upper end and the lower end of the sealing rubber sheet are respectively fixedly connected with the upper connecting plate and the lower connecting plate through a fixed sleeve plate, and the fixed sleeve plate is of an annular structure and is sleeved outside the sealing rubber sheet.
Preferably, the two sides of each spring are provided with a sealing rubber sheet, the vertical center line of each sealing rubber sheet is coincided with the vertical center line of each air inlet pipeline, and the number of the springs is at least eight.
3. Advantageous effects
The utility model discloses a setting of atmospheric pressure inductor number and position, make it can be simultaneously to the inside detection that carries out atmospheric pressure in the upper and lower both ends of air inlet pipeline, thereby can be according to the demonstration of both ends atmospheric pressure detection data about the air inlet pipeline, whether control the work of high-pressure delivery air supply, when the air inlet pipeline about both ends atmospheric pressure equal promptly, can learn the leakproofness of detecting the mould indirectly through detecting data better, and then can make the atmospheric pressure delivery source break off, avoid the high-pressure gas input quantity more, cause the influence between detection device and the detection mould, and when there is great atmospheric pressure difference in both ends about the air inlet pipeline, can learn the not good conclusion of gas tightness of detecting the mould indirectly, stop high-pressure gas's transport simultaneously, and the detection of next mould.
The utility model discloses a through the upper junction plate, the lower junction plate, all be the setting of annular structure between a plurality of springs and the sealing rubber piece, make constitute a hollow annular structure with the air inlet pipeline centre of a circle as the center between the above-mentioned parts, this annular structure is the second sealing mechanism, and then can pass through the connection between second sealing mechanism and detection mould and the notch, seal the protection to the high-pressure air supply that lets in, namely through detecting the extrusion of mould top to the lower junction plate, make the spring stretch out and draw back in the inside of notch, so as to improve the inseparability between lower junction plate and the detection mould top, and seal the junction between lower junction plate and the detection mould through first sealing block, thereby make the second sealing mechanism can seal the runner mouth that the mould was inside to set up and protect, with this reduce and fill the probability that the air supply has the outer phenomenon to produce in runner mouth department, therefore, the accuracy of the detection result of the air tightness of the die is ensured.
Drawings
Fig. 1 is a schematic front view of the internal structure of the present invention;
FIG. 2 is a schematic view of the internal structure of the second sealing mechanism;
fig. 3 is an enlarged top view at a in fig. 1.
Reference numerals: 1-base, 2-notch, 3-first sealing mechanism, 4-installation cavity, 5-air bag, 6-air pump, 7-connecting pipe, 8-air inlet pipeline, 9-conveying pipeline, 10-air pressure sensor, 11-second sealing mechanism, 12-upper connecting plate, 13-sealing gasket, 14-lower connecting plate, 15-spring, 16-sealing rubber sheet, 17-first sealing block, 18-exhaust pipeline, 19-fixed nest plate and 20-second sealing block.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Examples
As shown in fig. 1, a measuring jig for detecting the air tightness of a mold cavity comprises a base 1, a notch 2 for accommodating a mold is arranged in the bottom end of the base 1, an air inlet pipeline 8 communicated with the middle part of the top end of the notch 2 is arranged in the middle part of the upper part of the base 1, at least two exhaust pipelines 18 communicated with the top end of the notch 2 are arranged on the outer side of the air inlet pipeline 8 on the base 1, a conveying pipeline 9 communicated with the air inlet pipeline 8 is fixed at the top end of the base 1, an air pressure sensor 10 is arranged on the inner wall of the air inlet pipeline 8, the upper end of the conveying pipeline 9 is connected with a high-pressure air source, air pressure sensors 10 are arranged at the upper end and the lower end of the inner wall of the air inlet pipeline 8, the air pressure sensors 10 are arranged in number and position, so that the air pressure inside the upper end and the lower end of, whether the high-pressure conveying gas source works or not is controlled, namely when the pressures of the upper end and the lower end of the gas inlet pipeline 8 are equal, the good sealing performance of the detection mold can be indirectly known through detection data, so that the gas pressure conveying source can be disconnected, the influence between a detection device and the detection mold due to the fact that the input quantity of high-pressure gas is large is avoided, when the pressure difference between the upper end and the lower end of the gas inlet pipeline 8 is large, the result that the gas tightness of the detection mold is poor can be indirectly known, the conveying of the high-pressure gas is stopped, and the detection of the next mold is carried out;
a second sealing mechanism 11 is arranged inside the notch 2, an upper connecting plate 12 fixedly connected with the inner wall of the top end of the notch 2 is arranged inside the second sealing mechanism 11, the upper connecting plate 12 surrounds the outer side of the lower port of the air inlet pipeline 8 in an annular shape, a sealing gasket 13 for sealing is arranged between the upper connecting plate 12 and the inner wall of the top end of the notch 2, a spring 15 is fixed on the bottom end surface of the upper connecting plate 12 through a screw, a lower connecting plate 14 parallel to and annular with the upper connecting plate 12 is fixedly connected on the bottom end surface of the spring 15, a first sealing block 17 is adhered on the bottom end surface of the lower connecting plate 14, a sealing rubber sheet 16 surrounding the outer side of the lower port of the air inlet pipeline 8 is arranged outside the spring 15, the upper end and the lower end of the sealing rubber sheet 16 are respectively fixedly connected with the upper connecting plate 12 and the lower connecting plate 14, and the upper end and the lower end of the sealing rubber, The lower connecting plate 14 is fixedly connected, the fixed sleeve plate 19 is in an annular structure and is sleeved outside the sealing rubber sheet 16, the sealing rubber sheets 16 are arranged on two sides of each spring 15, the vertical central line of each sealing rubber sheet 16 is superposed with the vertical central line of the air inlet pipeline 8, the number of the springs 15 is at least eight, and the upper connecting plate 12, the lower connecting plate 14, the plurality of springs 15 and the sealing rubber sheets 16 are in the annular structure, so that a hollow annular structure taking the circle center of the air inlet pipeline 8 as the center is formed among the components, the annular structure is the second sealing mechanism 11, the introduced high-pressure air source can be sealed and protected through the connection between the second sealing mechanism 11 and the detection mold and the notch 2, the sealing rubber sheets 16 arranged on the inner side and the outer side of each spring 15 can be fixed between the upper connecting plate 12 and the lower connecting plate 14 through the fixed sleeve plate 19, the arrangement of the annular structure of the fixed sleeve plate 19 can press the peripheral edge of the sealing rubber sheet 16 on the surface of one side of the upper connecting plate 12 and one side of the lower connecting plate 14, the connection mode effectively reduces the influence on the sealing performance of the connection between the sealing rubber sheet 16 and the connecting plates caused by the separation of the local part of the sealing rubber sheet 16 and the connecting plates due to the high-pressure gas on one side of the sealing rubber sheet 16, namely, the spring 15 is stretched in the notch 2 by pressing the top end of the detection die to improve the tightness between the top end of the detection die and the lower connecting plate 14, and the connection between the lower connecting plate 14 and the detection die is sealed by the first sealing block 17, so that the second sealing mechanism 11 can seal and protect a runner port arranged in the die, thereby reducing the probability that the gas source filled has an external leakage phenomenon at the runner port, therefore, the accuracy of the detection result of the air tightness of the die is ensured;
the outside of second sealing mechanism 11 is equipped with first sealing mechanism 3 that is the annular column structure, and the inside of first sealing mechanism 3 is equipped with to set up on base 1 and is linked together all around with 2 tops of notch and be annular installation and hold chamber 4, and the internally mounted that the installation holds chamber 4 has gasbag 5 that is the annular structure, the top of gasbag 5 is provided with the air pump 6 with base 1 fixed connection, and the gas transmission end of air pump 6 is connected with and runs through in the installation hold the connecting tube 7 that chamber 4 tops are inside and be connected with 5 tops of gasbag, and the bottom surface of gasbag 5 glues there is second seal block 20.
The specific application process of the measuring jig for detecting the air tightness of the mold cavity comprises the following steps: when in use, firstly, a detected die is placed inside the notch 2, the top end of the runner port of the detected die is aligned with the air inlet pipeline 8, the lower connecting plate 14 is upwards extruded through the top end of the detected die while the top end of the detected die is aligned, so that the spring 15 extends and contracts inside the notch 2, the tightness between the lower connecting plate 14 and the top end of the detected die is improved, the joint between the lower connecting plate 14 and the detected die is sealed through the first sealing block 17, the probability that the air source filled into the air source leaks outside at the runner port is reduced, the accuracy of the air tightness detection result of the die is further ensured, then, according to the height difference between the detected die and the top end surface of the notch 2, the air source is transmitted into the air bag 5 through the work of the air pump 6, the volume of the air bag 5 is adjusted, and the air input is stopped when the bottom end surface of the air source and the top end surface of the detected die are in an extrusion state, therefore, the air bag 5 filled with the gas seals the position between the detection mould and the notch 2, and meanwhile, the contact between the second sealing block 20 and the detection mould and the air bag 5 effectively improves the sealing performance between the detection mould and the air bag 5, so that the influence of gas leakage on the accuracy of the detection result of the air tightness of the mould is reduced;
secondly, high-pressure gas is transmitted to the inside of the air inlet pipeline 8 through the conveying pipeline 9 and further transmitted to the inside of a notch 2 communicated with the air inlet pipeline 8, and the notch 2, a second sealing mechanism 11 and a detection mould are mutually matched to form an independent cavity between the notch and the detection mould, so that the gas introduced into the independent cavity enters the inside of the mould through a mould flow passage, the gas pressure of the high-pressure gas filled into the mould is gradually increased, and the gas pressures of the upper and lower ports of the air inlet pipeline 8 are detected through gas pressure sensors 10 arranged on the inner walls of the upper and lower ends of the air inlet pipeline 8, so that whether a high-pressure conveying gas source works or not can be controlled according to the display of the gas pressure detection data of the upper and lower ends of the air inlet pipeline 8, namely when the gas pressures of the upper and lower ends of the air inlet pipeline 8 are equal, the sealing performance of the detection mould can be indirectly known through the, and then can make the atmospheric pressure delivery source break off, and carry out the detection of next mould, so the setting of 10 numbers of atmospheric pressure inductor and position, the effectual high-pressure gas input that has avoided is more, cause the influence between detection device and the detection mould, on the contrary when there is great atmospheric pressure difference at upper and lower both ends of air inlet pipeline 8, can learn the not good conclusion of gas tightness of detection mould indirectly, and then accessible relevant control device stops the transport of high-pressure gas, and carry out the detection of next mould can, and when detecting that mould gas tightness is not good, the gas that leaks can enter into gasbag 5 through the gap of mould, in the cavity that encloses between second sealing mechanism 11 and the detection mould, it can to carry out the gas that leaks through exhaust pipeline 18 simultaneously, just so accomplished the use of the measuring tool that this mould die cavity detected.
It will be appreciated by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as limitations of the present invention, and that changes and modifications to the above described embodiments will fall within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.
Claims (4)
1. A measuring jig for detecting the air tightness of a mold cavity comprises a base (1), wherein a notch (2) used for accommodating a mold is formed in the bottom end of the base (1), an air inlet pipeline (8) communicated with the middle of the top end of the notch (2) is formed in the middle of the upper portion of the base (1), at least two exhaust pipelines (18) communicated with the top end of the notch (2) are arranged on the outer side of the air inlet pipeline (8) on the base (1), the measuring jig is characterized in that a conveying pipeline (9) communicated with the air inlet pipeline (8) is fixed at the top end of the base (1), and an air pressure sensor (10) is installed on the inner wall of the air inlet pipeline (8);
the sealing structure is characterized in that a second sealing mechanism (11) is arranged inside the notch (2), an upper connecting plate (12) fixedly connected with the inner wall of the top end of the notch (2) is arranged inside the second sealing mechanism (11), the upper connecting plate (12) surrounds the outer side of the lower port of the air inlet pipeline (8) in an annular shape, a sealing gasket (13) with a sealing effect is arranged between the upper connecting plate (12) and the inner wall of the top end of the notch (2), a spring (15) is fixed on the surface of the bottom end of the upper connecting plate (12) in a screw mode, a lower connecting plate (14) which is parallel to the upper connecting plate (12) and is in an annular shape is fixedly connected to the surface of the bottom end of the spring (15), a first sealing block (17) is bonded to the surface of the bottom end of the lower connecting plate (14), a sealing rubber sheet (16) surrounding the outer side of the lower port of the air inlet pipeline (8) is arranged on the outer side of the spring (15), the lower connecting plate (14) is fixedly connected;
the outside of second sealing mechanism (11) is equipped with first sealing mechanism (3) that are the annular column structure, and the inside of first sealing mechanism (3) is equipped with to set up on base (1) and is linked together all around with notch (2) top and be annular installation and hold chamber (4) to the internally mounted that the installation holds chamber (4) has gasbag (5) that are the annular structure, the top of gasbag (5) is provided with air pump (6) with base (1) fixed connection, and the gas transmission end of air pump (6) is connected with runs through in installation and holds chamber (4) top inside and connecting tube (7) of being connected with gasbag (5) top, and the bottom surface of gasbag (5) glues and has second seal block (20).
2. The measuring jig for the airtightness detection of the mold cavity according to claim 1, wherein the upper end of the conveying pipeline (9) is connected with a high-pressure air source, and air pressure sensors (10) are mounted at both the upper and lower ends of the inner wall of the air inlet pipeline (8).
3. The measuring jig for the airtightness detection of the mold cavity according to claim 1, wherein the upper and lower ends of the sealing rubber sheet (16) are respectively fixedly connected with the upper connecting plate (12) and the lower connecting plate (14) through a fixing sleeve plate (19), and the fixing sleeve plate (19) is in an annular structure and is sleeved on the outer side of the sealing rubber sheet (16).
4. The measuring jig for the airtightness detection of the mold cavity according to claim 1, wherein sealing rubber sheets (16) are disposed on both sides of the springs (15), and a vertical center line of each sealing rubber sheet (16) coincides with a vertical center line of the air inlet pipeline (8), and the number of the springs (15) is at least eight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921308025.2U CN210221434U (en) | 2019-08-13 | 2019-08-13 | Measuring jig for detecting air tightness of mold cavity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921308025.2U CN210221434U (en) | 2019-08-13 | 2019-08-13 | Measuring jig for detecting air tightness of mold cavity |
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|---|---|
| CN210221434U true CN210221434U (en) | 2020-03-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921308025.2U Expired - Fee Related CN210221434U (en) | 2019-08-13 | 2019-08-13 | Measuring jig for detecting air tightness of mold cavity |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113390586A (en) * | 2021-06-16 | 2021-09-14 | 马鞍山市奈特仪表科技有限公司 | Air-tight detection equipment for pressure gauge |
| CN113790854A (en) * | 2021-08-09 | 2021-12-14 | 常熟理工学院 | Pressure-resistant electronic product sealing detection system |
| CN114484296A (en) * | 2022-01-20 | 2022-05-13 | 承德石油高等专科学校 | Distributed optical fiber leakage monitoring device for oil pipe |
-
2019
- 2019-08-13 CN CN201921308025.2U patent/CN210221434U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113390586A (en) * | 2021-06-16 | 2021-09-14 | 马鞍山市奈特仪表科技有限公司 | Air-tight detection equipment for pressure gauge |
| CN113390586B (en) * | 2021-06-16 | 2024-04-30 | 马鞍山市奈特仪表科技股份有限公司 | Airtight check out test set for manometer |
| CN113790854A (en) * | 2021-08-09 | 2021-12-14 | 常熟理工学院 | Pressure-resistant electronic product sealing detection system |
| CN113790854B (en) * | 2021-08-09 | 2023-08-11 | 常熟理工学院 | Compression-resistant electronic product sealing detection system |
| CN114484296A (en) * | 2022-01-20 | 2022-05-13 | 承德石油高等专科学校 | Distributed optical fiber leakage monitoring device for oil pipe |
| CN114484296B (en) * | 2022-01-20 | 2024-04-26 | 承德石油高等专科学校 | Distributed optical fiber leakage monitoring device for oil pipe |
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