CN111256853A - Automatic filling device for temperature sensor production and filling method thereof - Google Patents
Automatic filling device for temperature sensor production and filling method thereof Download PDFInfo
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- CN111256853A CN111256853A CN202010123172.3A CN202010123172A CN111256853A CN 111256853 A CN111256853 A CN 111256853A CN 202010123172 A CN202010123172 A CN 202010123172A CN 111256853 A CN111256853 A CN 111256853A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/08—Protective devices, e.g. casings
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Abstract
The invention discloses an automatic filling device for temperature sensor production and a filling method thereof, belonging to the technical field of sensors, and the device comprises: a vacuum box assembly; a sealing cover plate assembly mounted on a front surface of the vacuum box assembly; the material injection assemblies are arranged on the top of the vacuum box assembly at equal intervals, and the vacuumizing assembly is arranged on the left side wall of the vacuum box assembly; the inflation assembly is arranged on the right side wall of the vacuum box assembly, the inert gas is injected into the box body, resin canning is carried out on the interior of the temperature sensor packaging tube in the inert gas environment, contact between the resin and oxygen in the air can be effectively avoided, the resin can be effectively guaranteed to be solidified by canning in the inert gas environment, the resin solidification time is shortened, and the production efficiency of the temperature sensor is improved.
Description
Technical Field
The invention relates to the technical field of sensors, in particular to an automatic filling device for temperature sensor production and a filling method thereof.
Background
The sensor is a detection device which can sense the measured information and convert the sensed information into an electric signal or other information in a required form according to a certain rule to output so as to meet the requirements of information transmission, processing, storage, display, recording, control and the like. The sensor features include: miniaturization, digitalization, intellectualization, multifunction, systematization and networking. The method is the first link for realizing automatic detection and automatic control. The existence and development of the sensor enable the object to have the senses of touch, taste, smell and the like, and the object slowly becomes alive. Generally, the sensor is classified into ten categories, i.e., a thermosensitive element, a photosensitive element, a gas-sensitive element, a force-sensitive element, a magnetic-sensitive element, a humidity-sensitive element, a sound-sensitive element, a radiation-sensitive element, a color-sensitive element, and a taste-sensitive element, according to their basic sensing functions.
A temperature sensor is a sensor that senses temperature and converts it into a usable output signal. The temperature sensor is the core part of the temperature measuring instrument and has a plurality of varieties. The measurement method can be divided into a contact type and a non-contact type, and the measurement method can be divided into a thermal resistor and a thermocouple according to the characteristics of sensor materials and electronic elements. The sensor industry in China starts late, and through the development of more than ten years, an industrial pattern with a certain scale is formed at present, and the sensor industry has the characteristics that (1) more manufacturers are provided, and enterprises with the larger scale are fewer; (2) regional development is unbalanced; (3) the variety is many, the grade is not high; (4) the production and the research are mostly supported by universities and research institutes, and the number of professional companies is small. With the continuous improvement of the degree of automatic production, the requirements on the sensor technology are also continuously improved, and the temperature sensor needs to be sealed by pouring resin into a packaging tube on the temperature sensor in the production process.
The existing temperature sensor is mostly exposed in the air when resin is poured into the packaging tube and directly carries out resin canning on the inside of the packaging tube, and after oxygen in the air is contacted with the resin, the oxygen can play a role in inhibiting polymerization on the resin, so that the curing time of the resin is prolonged, and the production efficiency of the temperature sensor is seriously influenced.
Disclosure of Invention
The invention aims to provide an automatic filling device for temperature sensor production and a filling method thereof, and aims to solve the problems that the prior temperature sensor provided in the background art is mostly exposed in the air when resin is filled in a packaging tube and directly fills the resin in the packaging tube, and after oxygen in the air is contacted with the resin, the oxygen can play a role in inhibiting polymerization on the resin, so that the curing time of the resin is prolonged, and the production efficiency of the temperature sensor is seriously influenced.
In order to achieve the purpose, the invention provides the following technical scheme: an automatic filling device for producing a temperature sensor comprises:
a vacuum box assembly;
a sealing cover plate assembly mounted on a front surface of the vacuum box assembly;
the multiple material injection assemblies are arranged on the top of the vacuum box assembly at equal intervals, and the bottom of each material injection assembly penetrates through the top wall of the vacuum box assembly and is inserted into the top of the inner cavity of the vacuum box assembly;
a vacuum pumping assembly mounted on a left sidewall of the vacuum box assembly;
an inflation assembly mounted on a right side wall of the vacuum box assembly.
Preferably, the vacuum box assembly comprises:
a box body;
the two sliding chutes are arranged on the left side and the right side of the bottom of the inner cavity of the box body in a left-right mode and are parallel to each other;
the vacuum degree detector is arranged on the rear wall of the inner cavity of the box body;
the first mounting holes are transversely arranged at the top of the box body at equal intervals and are communicated with the box body;
two second mounting holes, two the second mounting hole is seted up on one left side one right side the left and right sides top of box, two the second mounting hole with the inner chamber of box link up mutually.
Preferably, the sealing cover plate assembly includes:
a base plate;
the plurality of placing grooves are transversely arranged on the top of the bottom plate at equal intervals;
the two sliding rails are arranged on the left side and the right side of the bottom plate, and are parallel;
the back plate is arranged on the rear end face of the bottom plate and is perpendicular to the bottom plate.
Preferably, the material injection assembly comprises:
a material injection pipe;
the mounting plate is sleeved at the bottom of the outer wall of the material injection pipe.
Preferably, the vacuum pumping assembly comprises:
an exhaust pipe;
the air inlet on the first air pump is connected with one end of the exhaust pipe through a flange;
one end of the three-way pipe is connected with an air outlet of the first air pump through a normal;
and the two electromagnetic valves are arranged on the two pipelines of the three-way pipe far away from the first air pump in a one-to-one correspondence manner.
Preferably, the inflation assembly comprises:
a first air intake duct;
the air outlet of the second air pump is connected with one end of the first air inlet pipeline through a flange;
and one end of the second air inlet pipeline is connected with an air inlet of the second air pump through a flange.
A filling method of an automatic filling device for producing a temperature sensor comprises the following steps:
s1: placing a packaging tube: placing a packaging tube of a temperature sensor on the sealing cover plate assembly, and hermetically placing the packaging tube of the temperature sensor in the vacuum box assembly through the sealing cover plate assembly;
s2: vacuumizing: starting the vacuumizing assembly, vacuumizing the air of the vacuum box assembly until the vacuum degree reaches the limit vacuum, and then closing the vacuumizing assembly;
s3: filling gas: starting the inflation assembly, pumping inert gas into an inner cavity of the vacuum box assembly until the air pressure inside the vacuum box assembly is the same as the external air pressure, and then closing the inflation assembly;
s4: resin filling: and starting the material injection assembly, and injecting resin into the packaging tube of the temperature sensor through the material injection assembly.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, the inert gas is injected into the box body, and the resin canning is carried out on the interior of the temperature sensor packaging tube under the environment of the inert gas, so that the contact between the resin and oxygen in the air can be effectively avoided, the curing of the resin can be hindered by the oxygen in the air, the curing time of the resin is prolonged, the curing of the resin can be effectively ensured by canning under the environment of the inert gas, the curing time of the resin is shortened, and the production efficiency of the temperature sensor is improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the vacuum box assembly of the present invention;
FIG. 3 is a schematic view of a sealing gland plate assembly of the present invention;
FIG. 4 is a schematic view of the injection assembly of the present invention;
FIG. 5 is a schematic view of the vacuum pumping assembly of the present invention;
FIG. 6 is a schematic view of an inflation assembly of the present invention;
FIG. 7 is a flow chart of a filling method according to the present invention.
In the figure: the vacuum box comprises a 100 vacuum box assembly, a 110 box body, a 120 sliding groove, a 130 vacuum degree detector, a 140 first mounting hole, a 150 second mounting hole, a 200 sealing cover plate assembly, a 210 bottom plate, a 220 placing groove, a 230 sliding rail, a 240 back plate, a 300 injection assembly, a 310 injection pipe, a 320 mounting plate, a 400 vacuumizing assembly, a 410 exhaust pipe, a 420 first air pump, a 430 three-way pipe, a 440 electromagnetic valve, a 500 inflating assembly, a 510 first air inlet pipeline, a 520 second air pump and a 530 second air inlet pipeline.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides an automatic filling device for temperature sensor production, which can isolate air, prevent oxygen from contacting with resin, effectively ensure the rapid curing of the resin and improve the production efficiency of the temperature sensor, and please refer to fig. 1, wherein a vacuum box assembly 100, a sealing cover plate assembly 200, an injection assembly 300, a vacuumizing assembly 400 and an inflating assembly 500 are arranged;
referring to fig. 1 and 2, the vacuum box assembly 100 includes:
a case 110;
the two sliding grooves 120 are arranged on the left side and the right side of the bottom of the inner cavity of the box body 110, and the two sliding grooves 120 are parallel;
the vacuum degree detector 130 is installed on the rear wall of the inner cavity of the box body 110 and is used for detecting the vacuum degree of the inner cavity of the box body 110, the vacuum degree detector 130 is connected with the PLC through a lead, and the vacuum degree detector 130 transmits a detected vacuum degree signal to the PLC;
the plurality of first mounting holes 140 are transversely arranged at the top of the box body 110 at equal intervals, the plurality of first mounting holes 140 are communicated with the box body 110, and the number of the first mounting holes 140 is 3-9;
the two second mounting holes 150 are arranged on the top of the left side and the right side of the box body 110, and the two second mounting holes 150 are communicated with the inner cavity of the box body 110;
referring to fig. 1 and 3, a sealing cover plate assembly 200 is installed on a front surface of the vacuum box assembly 100, the sealing cover plate assembly 200 including:
the bottom of the bottom plate 210 is in contact with the bottom of the inner cavity of the box body 110, and the left side and the right side of the bottom plate 210 are in contact with the left wall and the right wall of the inner cavity of the box body 110;
the plurality of placing grooves 220 are transversely and equidistantly arranged on the top of the bottom plate 210, the packaging tubes on the temperature sensor are placed in the placing grooves 220, the packaging tubes are fixed through the placing grooves 220, the number of the placing grooves 220 is consistent with that of the first mounting holes 140, and the placing grooves 220 correspond to the first mounting holes 140;
the two slide rails 230 are arranged on the left side and the right side of the bottom plate 210, the two slide rails 230 are parallel, the slide rails 230 are matched with the slide grooves 120, the slide rails 220 are inserted into the inner sides of the slide grooves 120, the bottom plate 210 is arranged at the bottom of the inner cavity of the box body 110 through the matching use of the slide rails 230 and the slide grooves 120, and the bottom plate 210 can move back and forth on the bottom of the inner cavity of the box body 110 through the matching use of the slide rails 230 and the;
the back plate 240 is arranged on the rear end face of the bottom plate 210, the back plate 240 is perpendicular to the bottom plate 210, the top of the back plate 240 is in contact with the bottom of the inner cavity of the box body 110, the left side and the right side of the back plate 240 are in contact with the left wall and the right wall of the inner cavity of the box body 110, and the back plate 240 and the box body 110 are sealed through rubber, so that the sealing performance of the inner cavity of the box body 110 can be effectively guaranteed, external air is prevented from entering the inner cavity of the box body 110, and the balance;
referring to fig. 1 and 4, a plurality of injection assemblies 300 are equidistantly installed on the top of the vacuum box assembly 100, the bottom of the injection assemblies 300 penetrates the top wall of the vacuum box assembly 100 and is inserted into the top of the inner cavity of the vacuum box assembly 100, and the injection assemblies 300 include:
a water pump is installed at one end of the material injection pipe 310 and connected with the resin storage tank through a pipeline, resin in the resin storage tank is pumped to an inner cavity of the material injection pipe 310 through the water pump, the other end of the material injection pipe 310 penetrates through the first mounting hole 140 and is inserted into the top of the inner cavity of the box body 110, the material injection pipe 310 and the first mounting hole 140 are sealed through rubber, the number of the material injection pipes 310 is consistent with that of the placing grooves 220, the material injection pipes 310 correspond to the placing grooves 220, and resin is injected into a temperature sensor packaging pipe placed in the placing grooves 220 through the material injection pipes 310;
the mounting plate 320 is sleeved at the bottom of the outer wall of the injection pipe 310, the mounting plate 320 is mounted at the top of the box body 110 through bolts, the mounting plate 320 corresponds to the first mounting hole 140, and the injection pipe 310 is fixedly mounted on the box body 110 through the mounting plate 320;
referring to fig. 1 and 5, the vacuum pumping assembly 400 is installed at the left sidewall of the vacuum box assembly 100, and the vacuum pumping assembly 400 includes:
one end of the exhaust pipe 410 is installed in the second installation hole 150 on the left side of the box body 110, the exhaust pipe 410 penetrates through the second installation hole 150 to be communicated with the inner cavity of the box body 110, and the exhaust pipe 410 and the second installation hole 150 are sealed through rubber;
an air inlet on the first air pump 420 is connected with the other end of the exhaust pipe 410 through a flange, air in the inner cavity of the box body 110 is pumped out through the matching use of the first air pump 420 and the exhaust pipe 410 until the vacuum degree in the box body 110 reaches the limit vacuum, the first air pump 420 is connected with the PLC through a lead and a relay, the opening and closing of the first air pump 420 are controlled through the PLC, the vacuum degree of the inner cavity of the box body 110 is detected through the vacuum degree detector 130, when the vacuum degree detector 130 detects that the vacuum degree in the box body 110 reaches the limit vacuum, the air in the box body 110 is pumped out through the first air pump 420, when the vacuum degree detector 130 detects that the vacuum degree in the box body 110 reaches the limit vacuum, the PLC of the vacuum degree detector 130 sends a signal, the power supply of the first air pump 420 is cut off through the;
one end of the three-way pipe 430 is connected with the air outlet of the first air pump 420;
the two electromagnetic valves 440 are correspondingly arranged on two pipelines of the three-way pipe 430 far away from the first air pump 420 one by one, one of the electromagnetic valves 440 is connected with the collection tank through the pipeline, when the inner cavity of the box body 110 is vacuumized before injection, the electromagnetic valve 440 connected with the collection tank is closed, the other electromagnetic valve is started to discharge the air in the box body 110 to the outside air, when the inner cavity of the box body 110 is vacuumized after injection, the electromagnetic valve 440 connected with the collection tank is opened, the other electromagnetic valve is closed, and the inert gas in the inner cavity of the box body 110 is pumped into the collection tank for recycling, so that the cost is saved;
referring to fig. 1 and 6, the inflation assembly 500 is mounted on the right sidewall of the vacuum box assembly 100, and the inflation assembly 500 includes:
one end of the first air inlet pipe 510 is installed in the second installation hole 150 on the right side, the first air inlet pipe 510 penetrates through the second installation hole 150 to be communicated with the inner cavity of the box body 110, and the first air inlet pipe 510 and the second installation hole 150 are sealed through rubber;
an air outlet of the second air pump 520 is connected with the other end of the first air inlet pipeline 510 through a flange;
one end of a second air inlet pipe 530 is connected with an air inlet of a second air pump 520 through a flange, the other end of the second air inlet pipe 530 is connected with an inert gas storage tank, the inert gas is pumped into the box body 110 through the matching use of the first air inlet pipe 510, the second air pump 520 and the second air inlet pipe 530 until the air pressure of the box body 110 is consistent with the external air pressure, after the vacuumizing before the injection, when the vacuum degree detector 130 detects that the vacuum degree of the inner cavity of the box body 110 reaches the limit vacuum, the vacuum degree detector 130 sends a signal to the PLC controller, the power supply of the first air pump 420 is disconnected through the PLC controller and the second air pump 520 is started, the inert gas is pumped into the inner cavity of the box body 110 through the second air pump 520, when the vacuum degree detector 130 detects that the vacuum degree in the box body 110 is consistent with the external vacuum degree, the vacuum degree detector 130 sends a signal to the PLC controller, the power supply of the, and then the resin is filled in the temperature sensor packaging tube through the material injection tube 310, so that the resin can be effectively isolated from the air, the curing time of the resin is shortened, and the production efficiency of the temperature sensor is improved.
The invention also provides a filling method of the automatic filling device for producing the temperature sensor, which comprises the following steps:
s1: placing a packaging tube: placing the packaging tube of the temperature sensor in the placing groove 220, fixing the packaging tube of the temperature sensor through the placing groove 220, pushing the back plate 240, inserting the bottom plate 210 into the inner cavity of the vacuum box assembly 110 through the matching of the sliding rail 230 and the sliding groove 120, and inserting the packaging tube into the inner cavity of the box body 110 through the bottom plate 210;
s2: vacuumizing: starting the first air pump 420, pumping air in the box body 110 through the matching use of the first air pump 420 and the exhaust pipe 410, exhausting the air in the box body 110 to the external air through the electromagnetic valve 440 communicated with the external air, detecting the vacuum degree in the box body 110 through the vacuum degree detector 130, and cutting off the power supply of the first air pump 420 through the PLC when the vacuum degree in the box body 110 reaches the limit vacuum;
s3: filling gas: the PLC controller turns off the power of the first air pump 420 and simultaneously starts the second air pump 520, and pumps the inert gas, including helium, neon, argon, krypton, xenon, or nitrogen, into the interior of the case 110 through the cooperation of the first air inlet pipe 510, the second air pump 520, and the second air inlet pipe 530 until the pressure inside the case 110 is identical to the external pressure, and turns off the power of the second air pump 520;
s4: resin filling: the water pump is started, the resin is pumped into the material injection pipe 310 through the water pump, and the resin is filled into the packaging pipe on the temperature sensor through the material injection pipe 310.
In summary, the inert gas is injected into the box body, the resin canning is carried out on the interior of the temperature sensor packaging tube under the environment of the inert gas, the contact between the resin and oxygen in the air can be effectively avoided, the curing of the resin can be hindered by the oxygen in the air, the curing time of the resin is prolonged, the curing of the resin can be effectively guaranteed by canning under the environment of the inert gas, the curing time of the resin is shortened, and the production efficiency of the temperature sensor is improved.
While the invention has been described above with reference to an embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the various features of the embodiments disclosed herein may be used in any combination, provided that there is no structural conflict, and the combinations are not exhaustively described in this specification merely for the sake of brevity and conservation of resources. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (7)
1. The utility model provides a temperature sensor production is with automatic filling device which characterized in that: the method comprises the following steps:
a vacuum box assembly (100);
a sealing cover assembly (200), the sealing cover assembly (200) being mounted on a front surface of the vacuum box assembly (100);
the plurality of material injection assemblies (300) are equidistantly mounted on the top of the vacuum box assembly (100), and the bottom of each material injection assembly (300) penetrates through the top wall of the vacuum box assembly (100) and is inserted into the top of the inner cavity of the vacuum box assembly (100);
a vacuum evacuation assembly (400), the vacuum evacuation assembly (400) being mounted to a left sidewall of the vacuum box assembly (100);
an inflation assembly (500), the inflation assembly (500) being mounted to a right side wall of the vacuum box assembly (100).
2. The automatic filling device for producing the temperature sensor according to claim 1, wherein: the vacuum box assembly (100) comprises:
a case (110);
the two sliding chutes (120) are arranged on the left side and the right side of the bottom of the inner cavity of the box body (110), and the two sliding chutes (120) are parallel;
the vacuum degree detector (130), the vacuum degree detector (130) is installed on the rear wall of the inner cavity of the box body (110);
the first mounting holes (140) are transversely arranged at the top of the box body (110) at equal intervals, and the first mounting holes (140) are communicated with the box body (110);
two second mounting holes (150), two the first left and right sides of second mounting hole (150) is seted up at the left and right sides top of box (110), two second mounting hole (150) with the inner chamber of box (110) link up mutually.
3. The automatic filling device for producing the temperature sensor according to claim 1, wherein: the sealing gland plate assembly (200) comprises:
a base plate (210);
a plurality of placing grooves (220), wherein the placing grooves (220) are transversely arranged on the top of the bottom plate (210) at equal intervals;
the two sliding rails (230) are arranged on the left side and the right side of the bottom plate (210) one by one, and the two sliding rails (230) are parallel;
a back plate (240), the back plate (240) being disposed at a rear end surface of the base plate (210), the back plate (240) being perpendicular to the base plate (210).
4. The automatic filling device for producing the temperature sensor according to claim 1, wherein: the injection assembly (300) comprises:
an injection pipe (310);
the mounting plate (320), the mounting plate (320) cup joints the outer wall bottom at notes material pipe (310).
5. The automatic filling device for producing the temperature sensor according to claim 1, wherein: the evacuation assembly (400) includes:
an exhaust pipe (410);
the air inlet of the first air pump (420) is connected with one end of the exhaust pipe (410) through a flange;
one end of the three-way pipe (430) is connected with the air outlet of the first air pump (420) through a normal connection mode;
the two electromagnetic valves (440) are correspondingly arranged on two pipelines of the three-way pipe (430) far away from the first air pump (420).
6. The automatic filling device for producing the temperature sensor according to claim 1, wherein: the inflation assembly (500) comprises:
a first air intake duct (510);
the air outlet of the second air pump (520) is connected with one end of the first air inlet pipeline (510) through a flange;
and one end of the second air inlet pipeline (530) is connected with an air inlet of the second air pump (520) through a flange.
7. A filling method of the automatic filling apparatus for temperature sensor production according to claim 1, characterized in that: the filling method of the automatic filling device for producing the temperature sensor comprises the following steps:
s1: placing a packaging tube: placing a packaging tube of a temperature sensor on the sealing cover plate assembly (200), and placing the packaging tube of the temperature sensor in the vacuum box assembly (100) in a sealing manner through the sealing cover plate assembly (200);
s2: vacuumizing: starting the vacuum-pumping assembly (400), pumping out air of the vacuum box assembly (100) until the vacuum degree reaches the ultimate vacuum, and then closing the vacuum-pumping assembly (400);
s3: filling gas: starting the inflation assembly (500), pumping inert gas into the inner cavity of the vacuum box assembly (100) until the air pressure inside the vacuum box assembly (100) is the same as the external air pressure, and then closing the inflation assembly (500);
s4: resin filling: and starting the material injection assembly (300), and injecting resin into the packaging tube of the temperature sensor through the material injection assembly (300).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010123172.3A CN111256853A (en) | 2020-02-27 | 2020-02-27 | Automatic filling device for temperature sensor production and filling method thereof |
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| CN202010123172.3A CN111256853A (en) | 2020-02-27 | 2020-02-27 | Automatic filling device for temperature sensor production and filling method thereof |
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| WO2022121000A1 (en) * | 2020-12-10 | 2022-06-16 | 深圳大学 | Hermetic-type encapsulation structure for fiber-optic sensor, encapsulation apparatus, and encapsulation method |
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