CN211085528U - Special miniature pressure transmitter of point gum machine - Google Patents
Special miniature pressure transmitter of point gum machine Download PDFInfo
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- CN211085528U CN211085528U CN201922261524.7U CN201922261524U CN211085528U CN 211085528 U CN211085528 U CN 211085528U CN 201922261524 U CN201922261524 U CN 201922261524U CN 211085528 U CN211085528 U CN 211085528U
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Abstract
The utility model relates to a special miniature pressure transmitter of point gum machine, including base, elastomer, shell, sealing washer, pressure measurement component, miniature compensating plate, miniature circuit board, lead wire, output line; wherein, the elastomer is welded at the upper end of the base through argon arc; the pressure measuring element is tightly bonded on the elastic body generating mechanical strain through the adhesive; the pressure measuring element is electrically connected with the miniature compensation plate through a lead, and the resistance signal sensed by the pressure measuring element is transmitted to the miniature compensation plate in the shell by the lead; the miniature circuit board is fixed on the miniature compensation plate, a lead and an output line are arranged on the miniature circuit board, the miniature circuit board is connected with the miniature compensation plate through the lead, and the output line on the miniature circuit board extends out of the shell; through the utility model discloses, be applicable to the pressure measurement of installing on the rifle of gluing in most point gum machines, can install a plurality of pressure transmitter on the rifle of gluing simultaneously, and usable box spanner direct loading and unloading, not influenced mutually.
Description
Technical Field
The utility model relates to a special miniature pressure transmitter of point gum machine belongs to sensor technical field.
Background
In most pressure measurement of dispensing machine, a pressure transmitter is generally installed at a dispensing outlet (dispensing gun) in order to more accurately control the amount of glue in the dispensing process. However, in more small-sized dispensing devices and multi-path glue dispensing devices, the conventional pressure transmitter cannot be mounted on a glue dispensing gun with a smaller volume and can only be mounted on a nearby glue pipeline, so that the actual pressure in the glue dispensing gun cannot be accurately measured in the using process, the glue dispensing amount and speed are unstable, and the overall glue dispensing effect is affected.
This a series of problems has been solved to the special miniature pressure transmitter of latest formula point gum machine, and neotype design is applicable to the pressure measurement of installing on the point gum gun in most point gum machines, can bear within the measured medium 150 ℃, and pressure transmitter maximum diameter is no longer than 21mm, and length is no longer than 35mm, can install a plurality of pressure transmitter on the point gum gun simultaneously, and usable box spanner direct loading and unloading, is not influenced mutually.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a special miniature pressure transmitter of point gum machine to above-mentioned current problem.
The utility model aims at realizing the purpose, and the special miniature pressure transmitter for the dispenser is characterized by comprising a base, an elastic body, a shell, a pressure measuring element, a miniature compensating plate, a miniature circuit board, a lead and an output line;
wherein, the elastomer is welded at the upper end of the base through argon arc; the pressure measuring element is tightly bonded on the elastic body generating mechanical strain through the adhesive; the pressure measuring element is electrically connected with the miniature compensation plate through a lead, and the resistance signal sensed by the pressure measuring element is transmitted to the miniature compensation plate in the shell by the lead; the miniature circuit board is fixed on the miniature compensation plate, a lead and an output line are arranged on the miniature circuit board, the miniature circuit board is connected with the miniature compensation plate through the lead, and the output line on the miniature circuit board extends out of the shell;
the miniature compensation plate, the miniature circuit board and the lead are all arranged in the shell, and the shell is filled with high-temperature-resistant silica gel for fixing the output line, the internal miniature compensation plate and the miniature circuit board; and the shell and the base are fixed by argon arc welding.
The base is made of 304 or 316L materials, is integrally formed, is provided with mounting threads and a sealing surface, and is provided with a sealing ring.
The elastomer is made of 17-4PH alloy.
The pressure measuring element adopts a high-temperature-resistant strain gauge.
The miniature circuit board is fixed on the miniature compensation plate through the circuit support.
The utility model discloses rational in infrastructure, the production is easy, convenient to use, through the utility model, a special miniature pressure transmitter of point gum machine that provides, including base (integrative processing has the screw thread on the base, the sealing surface), the elastomer, the shell, the pressure measurement component, miniature compensating plate, miniature circuit board, the lead wire, the output line, the sealing washer, wherein, the base is 304 or 316L material, its integrated into one piece, and have the installation screw thread, the sealing surface, the sealing washer on the base plays sealed effect, the elastomer is 17-4PH alloy material, weld in the base upper end through argon arc, the pressure measurement component adopts and adopts high temperature resistant strainometer, with the strainometer through the inseparable bonding of bonding agent on the elastomer that produces mechanical strain, through technologies such as high temperature curing and ageing, make foil gage and elastomer laminate completely and reach the best pressure response effect, thereby formed semi-manufactured goods (the base that has been equipped with the pressure measurement component), weld the shell on the base basis through argon arc, utilize high temperature resistant lead wire to transmit the resistance signal that the pressure measurement component perception to the miniature compensating plate in the shell, the miniature circuit board passes through the circuit board is fixed on the miniature compensating plate, connect to the miniature signal conversion, and the output line is drawn through the miniature circuit board, and the high temperature resistant signal conversion, and the miniature protection component is used for the internal conversion, and.
The novel structure of this design is reasonable simple, adopts embedded elastomer and high temperature resistant strainometer as the pressure measurement component for the complete machine volume accomplishes littleer, can satisfy the pressure measurement in the temperature of-20 ~150 ℃ simultaneously, and measurement accuracy reaches 0.25% FS.
The utility model provides a special miniature pressure transmitter of point gum machine 1) structural feature, the base integral type processing, the elastomer adopts embedded design, and weld on the base through argon arc, the design constantly makes whole length control within 35mm, compensating plate and circuit board miniaturized processing, when designing, can make whole diameter no longer than 21mm, pack the silica gel and fix the output line in the shell, need not additionally install the upper cover 2) material feature, the sensor connects liquid position to use stainless steel material, the material is 304 stainless steel or 316L material respectively, the elastomer material is 17-4PH alloy steel, 3) pressure measurement component, pressure measurement component adopts high temperature resistant strainometer, through the inseparable bonding of bonding agent on the elastomer that produces mechanical strain, through technologies such as high temperature curing and ageing, make foil gage and elastomer laminate completely and reach best pressure response effect 4) electrical output mode, the utility model discloses can have output signal such as 4-20MA, 0-10V.
The pressure transmitter is directly arranged on a dispensing gun, 4 miniature pressure transmitters special for the dispensing machine can be simultaneously arranged on a 50mm cube dispensing gun without mutual influence, the four miniature pressure transmitters special for the dispensing machine can be respectively arranged in four measuring holes on the dispensing gun through a socket wrench, the output line of the miniature pressure transmitter special for the dispensing machine is connected with P L C of the dispensing machine, a 4-20mA two-wire series connection method is adopted to supply power to the transmitter, and simultaneously, a 4-20mA current signal is generated and transmitted to P L C, when pressure is generated in a dispensing machine pipeline, the pressure generated by the glue acts on an elastic body in the miniature pressure transmitter special for the dispensing machine, the elastic body generates deformation in a certain proportion, strain gauges adhered on the elastic body generate corresponding resistance values due to the deformation of the elastic body and are transmitted to a compensation plate and an amplification circuit board and converted into a standard 4-20mA current signal.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: the device comprises a base 1, an elastomer 2, a shell 3, a sealing ring 4, a pressure measuring element 5, a miniature compensating plate 6, a miniature circuit board 7, a lead 8 and an output wire 9.
Detailed Description
The invention will be further described with reference to specific embodiments.
A special miniature pressure transmitter for a dispenser comprises a base 1, an elastic body 2, a shell 3, a pressure measuring element 5, a miniature compensating plate 6, a miniature circuit board 7, a lead 8 and an output line 9; the elastic body 2 is welded at the upper end of the base 1 through argon arc; the pressure measuring element 5 is tightly bonded on the elastic body 2 generating mechanical strain through an adhesive; the pressure measuring element 5 is electrically connected with the miniature compensating plate 6 through a lead 8, and a resistance signal sensed by the pressure measuring element 5 is transmitted to the miniature compensating plate 6 in the shell 3 by the lead 8; the miniature circuit board 7 is fixed on the miniature compensation plate 6, a lead wire 8 and an output wire 9 are arranged on the miniature circuit board 7, the miniature circuit board 7 is connected with the miniature compensation plate 6 through the lead wire 8, and the output wire 9 on the miniature circuit board 7 extends out of the shell 3.
The miniature compensation plate 6, the miniature circuit board 7 and the lead 8 are all arranged in the shell 3, and the shell 3 is filled with high-temperature-resistant silica gel for fixing the output line 9, the internal miniature compensation plate 6 and the miniature circuit board 7; and the shell 3 and the base 1 are fixed through argon arc welding.
Further, the base 1 is made of 304 or 316L materials, the base 1 is integrally formed, the base 1 is provided with mounting threads and a sealing surface, the sealing surface is provided with a sealing ring 4, the elastic body 2 is made of 17-4PH alloy materials, the pressure measuring element 5 adopts a high temperature resistant strain gauge, and the miniature circuit board 7 is fixed on the miniature compensation board 6 through a circuit support.
Claims (5)
1. A miniature pressure transmitter special for a dispenser is characterized by comprising a base (1), an elastic body (2), a shell (3), a pressure measuring element (5), a miniature compensation plate (6), a miniature circuit board (7), a lead (8) and an output line (9);
the elastic body (2) is welded at the upper end of the base (1) through argon arc; the pressure measuring element (5) is tightly bonded on the elastic body (2) generating mechanical strain through an adhesive; the pressure measuring element (5) is electrically connected with the miniature compensating plate (6) through a lead (8), and a resistance signal sensed by the pressure measuring element (5) is transmitted to the miniature compensating plate (6) in the shell (3) by the lead (8); the miniature circuit board (7) is fixed on the miniature compensation plate (6), a lead (8) and an output line (9) are arranged on the miniature circuit board (7), the miniature circuit board (7) is connected with the miniature compensation plate (6) through the lead (8), and the output line (9) on the miniature circuit board (7) extends out of the shell (3);
the miniature compensation plate (6), the miniature circuit board (7) and the lead (8) are all arranged in the shell (3), and the shell (3) is filled with high-temperature-resistant silica gel for fixing the output line (9), the internal miniature compensation plate (6) and the miniature circuit board (7); and the shell (3) and the base (1) are fixed by argon arc welding.
2. The miniature pressure transmitter special for the dispenser according to claim 1, wherein the base (1) is made of 304 or 316L material, the base (1) is integrally formed, the base (1) is provided with mounting threads and a sealing surface, and the sealing surface is provided with the sealing ring (4).
3. The micro pressure transmitter of claim 1, wherein the elastomer (2) is made of 17-4PH alloy.
4. The miniature pressure transmitter for the dispenser according to claim 1, wherein the pressure measuring element (5) is a high temperature resistant strain gauge.
5. The miniature pressure transmitter special for the dispenser according to claim 1, wherein the miniature circuit board (7) is fixed on the miniature compensation plate (6) through a circuit bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922261524.7U CN211085528U (en) | 2019-12-17 | 2019-12-17 | Special miniature pressure transmitter of point gum machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922261524.7U CN211085528U (en) | 2019-12-17 | 2019-12-17 | Special miniature pressure transmitter of point gum machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211085528U true CN211085528U (en) | 2020-07-24 |
Family
ID=71629845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922261524.7U Active CN211085528U (en) | 2019-12-17 | 2019-12-17 | Special miniature pressure transmitter of point gum machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211085528U (en) |
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2019
- 2019-12-17 CN CN201922261524.7U patent/CN211085528U/en active Active
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