CN114216593B - Preparation device of flexible sensor - Google Patents
Preparation device of flexible sensor Download PDFInfo
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- CN114216593B CN114216593B CN202210154244.XA CN202210154244A CN114216593B CN 114216593 B CN114216593 B CN 114216593B CN 202210154244 A CN202210154244 A CN 202210154244A CN 114216593 B CN114216593 B CN 114216593B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
- G01L1/22—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/48—Other medical applications
- A61B5/4806—Sleep evaluation
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
- B05C5/002—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the work consisting of separate articles
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
- G01L1/22—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
- G01L1/2206—Special supports with preselected places to mount the resistance strain gauges; Mounting of supports
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Abstract
The invention discloses a preparation device of a flexible sensor, wherein the flexible sensor comprises a flexible elastomer and a resistance strain gauge, and the resistance strain gauge is embedded in the flexible elastomer. The preparation device comprises a rack, wherein a first die holder, a preparation substrate and a second die holder are sequentially arranged on the rack from bottom to top, the center of the upper end surface of the first die holder is concave downwards to form a first cavity, and the center of the lower end surface of the second die holder is concave upwards to form a second cavity; the preparation base plate is of a flat plate-shaped structure, a placing groove used for placing the resistance strain gauge is formed in the center of the upper surface of the preparation base plate, the edge of the upper end face of the first profile seat is connected with the edge of the lower end face of the preparation base plate through a first inserting and connecting positioning mechanism, and the edge of the lower end face of the second profile seat is connected with the edge of the upper end face of the preparation base plate through a second inserting and connecting positioning mechanism. The invention can enable the resistance strain gauge to have two flat sticking surfaces, avoid the condition of air bubbles and holes and improve the sticking performance of the resistance strain gauge.
Description
Technical Field
The invention relates to the technical field of intelligent mattresses, in particular to a preparation device of a flexible sensor.
Background
In the prior art, the intelligent mattress can acquire human sleep data intermittently and obtain the human sleep state by analyzing and comparing the human sleep data.
At present, the sleep monitoring of clinical experiments adopts the night polysomnography monitoring means, a large number of leads and sensors need to be connected to each part of the body of a detected person, the invasive monitoring can cause great interference to the natural sleep state of the human body, and the using steps are complicated. In the existing research, the sleep monitoring mattress adopts external additional sensors such as an air cushion, a spring and the like, and also adopts the characteristics that sensor modules are distributed in each layer structure to obtain a sensor by multilayer compounding, and conductive substances are transversely and longitudinally woven into fabric by utilizing the warp-weft staggered characteristic of a woven structure to obtain the sensor, and no matter which sensor has certain influence on the softness of the fabric.
The strain gauge in the existing flexible fabric sensor is usually adhered to the surface of a flexible substrate or embedded in a structure in an array form, and is used for monitoring a response signal of the structure to an environmental stimulus in real time and extracting a structural state parameter and an environmental parameter from the response signal. The structural parameters generally include stress, strain, load, displacement, damage, etc. of the structure, and the environmental parameters include temperature, humidity, pressure, etc. The signal that the sensor received receives the influence of glue film very easily, and the change that the glue film that bonds the sensor because of environmental factor produces can cause the damage result that obtains after the signal processing to produce the error, causes the difficulty for the monitoring, causes the erroneous judgement easily.
The existing sensor adopts a strain gauge to be placed in a sensor body, but the existing preparation device has the following defects: the adhesive surface is not flat, so that bubbles and holes are easy to appear, and the adhesive property of the sensor is directly influenced.
Disclosure of Invention
The invention aims to provide a preparation device of a flexible sensor, which is used for solving the problems of bubbles and holes in the prior art and improving the bonding performance of the sensor.
In order to solve the technical problems, the invention specifically provides the following technical scheme:
a preparation device of a flexible sensor is used for preparing the flexible sensor, and the flexible sensor comprises a flexible elastomer and a resistance strain gauge, wherein the resistance strain gauge is embedded in the flexible elastomer;
the flexible elastic body comprises an upper base body and a lower base body, the upper base body is overlapped at the upper end of the lower base body, an accommodating cavity is formed between the upper base body and the lower base body, the resistance strain gauge is arranged in the accommodating cavity, adhesive is filled in the accommodating cavity, and the adhesive is used for filling gaps among the upper base body, the lower base body and the resistance strain gauge so that the upper base body, the lower base body and the resistance strain gauge are connected to form an integral structure;
the device comprises a rack, wherein a first die holder, a preparation substrate and a second die holder are sequentially arranged on the rack from bottom to top, the center of the upper end surface of the first die holder is concave downwards to form a first cavity, and the center of the lower end surface of the second die holder is concave upwards to form a second cavity;
the preparation base plate is of a flat plate-shaped structure, the upper surface center of the preparation base plate is provided with a placing groove used for placing the resistance strain gauge, the edge of the upper end face of the first profile seat is connected with the edge of the lower end face of the preparation base plate through a first inserting and connecting positioning mechanism, and the edge of the lower end face of the second profile seat is connected with the edge of the upper end face of the preparation base plate through a second inserting and connecting positioning mechanism.
As a preferable scheme of the present invention, an upper annular groove is formed on an upper end surface of the preparation substrate, the upper annular groove surrounds the placement groove, the upper annular groove corresponds to a lower end of a vertical side of the second die bed, a lower annular groove is formed on a lower end surface of the preparation substrate, and the lower annular groove corresponds to a top of the vertical side of the first die bed.
As a preferable scheme of the invention, a lower glue injection port is arranged at the bottom of the first mold base, an upper glue injection port is arranged at the top of the second mold base, a glue injection pipe is arranged at the lower part of the vertical side edge of the second mold base, and an accommodating groove for accommodating the glue injection pipe is arranged on the preparation substrate.
As a preferable embodiment of the present invention, the frame is connected to a first moving member, a second moving member and a third moving member, an output end of the first moving member is connected to the first mold, the second moving member is connected to the preparation substrate, and the third moving member is connected to the second mold.
In a preferred embodiment of the present invention, the frame is provided with a first bracket and a second bracket, the first bracket is provided with a first steering member, the second bracket is provided with a second steering member, the first moving member is mounted on an output end of the first steering member, and the first steering member drives the first moving member to horizontally steer.
In a preferred embodiment of the present invention, the second moving member and the third moving member are mounted together at an output end of the second steering member, and the second steering member drives the second moving member and the third moving member to synchronously rotate horizontally.
As a preferable mode of the present invention, the first steering member includes a first steering motor mounted on the first bracket, an output shaft of the first steering motor is connected to a first steering plate, the first moving member includes a first telescopic cylinder mounted on the first steering plate, a cylinder body of the first telescopic cylinder is fixed to the first steering plate, and an output end of the first telescopic cylinder is connected to a bottom of the first die holder.
As a preferable aspect of the present invention, the second steering member includes a second steering motor mounted on the second bracket, and an output shaft of the second steering motor is connected to a second steering plate;
the third moving part comprises a third telescopic cylinder arranged on the second steering plate, the cylinder body of the third telescopic cylinder is fixed on the second steering plate, and the output end of the third telescopic cylinder is vertically connected with the top of the second profile seat.
As a preferable scheme of the present invention, the second moving member includes a second telescopic cylinder installed on the second steering plate, a cylinder body of the second telescopic cylinder is fixed on the second steering plate, and an output end of the second telescopic cylinder is vertically connected to an edge portion of the upper surface of the preparation substrate;
a longitudinal moving part is arranged on the second support, the longitudinal moving part is installed between the output end of the second telescopic cylinder and the preparation substrate, and the output end of the longitudinal moving part is connected with the preparation substrate;
the longitudinal movement part comprises a longitudinal movement sliding groove arranged on the output end of the second telescopic cylinder, a longitudinal movement sliding seat is arranged in the longitudinal movement sliding groove in a sliding mode, the movement track of the longitudinal movement sliding seat is perpendicular to the extending direction of the second telescopic cylinder, and the preparation substrate is connected with the longitudinal movement sliding seat.
Compared with the prior art, the invention has the following beneficial effects:
in the preparation process of the flexible fabric sensor, the flexible elastomer is divided into two sections: the upper substrate and the lower substrate are glued together by the adhesive, so that both sides of the resistance strain gauge can be effectively fixed, meanwhile, when the resistance strain gauge is glued on the upper base body, the resistance strain gauge is firstly horizontally placed on the preparation base plate, and then the elastic material is injected, so that the gluing surface is very flat, the condition of bubbles and holes is avoided, thereby affecting the bonding performance of the resistance strain gauge, then when the upper substrate and the lower substrate are bonded, the other bonding surface of the resistance strain gauge is naturally very flat, therefore, the resistance strain gauge has two very smooth pasting surfaces, the pasting quality of the resistance strain gauge is enhanced, and the installation efficiency and the reliability of the sensor are improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
FIG. 1 provides an overall schematic view of a flexible fabric sensor assembly for an embodiment of the present invention;
FIG. 2 is a first schematic diagram of an overall apparatus for manufacturing a flexible fabric sensor assembly according to an embodiment of the present invention;
FIG. 3 is a second overall schematic diagram of a manufacturing apparatus for a flexible fabric sensor assembly according to an embodiment of the present invention;
FIG. 4 is a side schematic view of a first steering member according to an embodiment of the present invention;
FIG. 5 is a schematic view of a longitudinally moving part according to an embodiment of the present invention.
The reference numerals in the drawings denote the following, respectively:
1-a flexible sensor; 2-a fabric base layer; 3-a frame; 4-a first moving part; 5-a second moving part; 6-a third moving part; 7-a first steering component; 8-a second steering member; 9-a longitudinal moving part;
11-a flexible elastomer; 111-upper substrate; 112-lower substrate; 113-a containment cavity; 12-a resistive strain gauge;
31-a first type seat; 32-preparing a substrate; 33-a second type seat; 34-a first support; 35-a second scaffold;
311-a first cavity; 312-lower glue injection port;
321-placing grooves; 322-an upper annular groove; 323-lower annular groove; 324-a receiving tank; 325-bulge;
331-a second cavity; 332-upper glue injection port; 333-gluing the injection tube;
41-a first telescopic cylinder;
51-a second telescopic cylinder;
61-a third telescopic cylinder;
71-a first steering motor; 72-a first steer plate;
81-a second steering motor; 82-a second steer plate;
91-longitudinal movement of the runner; 92-longitudinally moving the carriage.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the embodiments described below 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.
In the description of the present invention, it is to be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.
Furthermore, the terms "long", "short", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention, but do not indicate or imply that the referred devices or elements must have the specific orientations, be configured to operate in the specific orientations, and thus are not to be construed as limitations of the present invention.
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
Example one
As shown in fig. 1, the present invention provides a flexible fabric sensor assembly, which can measure various mechanical quantities, can improve the sensitivity of measurement, has accurate measurement result and good linearity, and is stable and convenient for measurement. The flexible fabric sensor module is provided with:
a fabric base layer 2;
the flexible sensor 1, the flexible sensor 1 is set up on the fabric basal layer 2;
the flexible sensor 1 comprises a flexible elastic body 11 and a resistance strain gauge 12, wherein the resistance strain gauge 12 is embedded in the flexible elastic body 11, and the flexible elastic body 11 is formed by solidifying a liquid superelastic material. Specifically, the flexible elastic body 11 includes an upper base 111 and a lower base 112, the upper base 111 is overlapped on the upper end of the lower base 112, an accommodating cavity 113 is arranged between the upper base 111 and the lower base 112, the resistance strain gauge 12 is arranged in the accommodating cavity 113, the accommodating cavity 113 is filled with an adhesive, and the adhesive is used for filling gaps among the upper base 111, the lower base 112 and the resistance strain gauge 12, so that the upper base 111, the lower base 112 and the resistance strain gauge 12 are connected to form an integral structure.
According to the invention, the accommodating space for accommodating the resistance strain gauge 12 is formed between the upper base 111 and the lower base 112, and the accommodating space is filled with the adhesive, so that the adhesive can fill the gap between the resistance strain gauge 12, the upper base 111 and the lower base 112, the resistance strain gauge 12 is fixed in the flexible elastic body 11 by the adhesive filled with the adhesive, and the existing adhesive layer bonding mode is not needed for installation, thereby avoiding the problems that the adhesive layer thickness uniformity is difficult to control, the bonding surface is not smooth enough, and bubbles and holes are easy to exist in the bonding adhesive layer, realizing the firm installation of the resistance strain gauge 12 in the flexible elastic body 11, and ensuring the connection stability of the resistance strain gauge. Meanwhile, the sensitivity of the flexible sensor 1 in measurement is improved, and the measurement result is accurate and good in linearity.
Meanwhile, the resistance strain gauge 12 is sealed between the upper substrate 111 and the lower substrate 112, and the resistance strain gauge 12 is protected. And then selecting the used adhesive according to the use environment of the resistance strain gauge 12, wherein the expansion coefficient of the adhesive is close to that of the upper base 111 and the lower base 112, so that the thermal expansion coefficients of the adhesive and the flexible elastomer 11 are consistent or close, and the connection stability between the resistance strain gauge 12 and the flexible elastomer 11 is ensured.
Example two
As shown in fig. 1 to 4, the present invention further provides a device for manufacturing a flexible sensor, which is used for manufacturing the flexible sensor, and includes a frame 3, wherein a first mold base 31, a manufacturing substrate 32 and a second mold base 33 are sequentially disposed on the frame 3 from bottom to top, a first cavity 311 is formed by recessing the center of the upper end surface of the first mold base 31, a second cavity 331 is formed by recessing the center of the lower end surface of the second mold base 33, the first cavity 311 is used for forming a lower substrate 112, and the second cavity 331 is used for forming an upper substrate 111.
Specifically, the preparation substrate 32 is a flat plate-shaped structure, and a placement groove 321 for placing the resistance strain gauge 12 is disposed at the center of the upper surface of the preparation substrate 32, and optionally, the shape and the space size of the placement groove 321 are the same as those of the accommodation cavity 113. The edge of the lower end face of the second mold seat 33 is connected with the edge of the upper end face of the preparation substrate 32 through a second inserting positioning mechanism, and the edge of the upper end face of the first mold seat 31 is connected with the edge of the lower end face of the preparation substrate 32 through a first inserting positioning mechanism. The second mold 33 is used for preparing the upper substrate 111 after being inserted and positioned with the preparation substrate 32, and the first mold 31 is used for preparing the lower substrate 112 after being inserted and positioned with the preparation substrate 32.
In this embodiment, the upper end surface of the preparation substrate 32 is provided with an upper annular groove 322, the upper annular groove 322 surrounds the placement groove 321, and the upper annular groove 322 corresponds to the lower end of the vertical side of the second mold base 33. After the preparation substrate 32 and the second mold base 33 are in close contact, the lower portion of the vertical side of the second mold base 33 is inserted into the upper annular groove 322, at this time, the preparation substrate 32 and the second mold base 33 are connected into a whole, a second cavity 331 is formed between the two, and the top of the second mold base 33 is provided with an upper glue injection port 332. When the upper substrate 111 is manufactured using the above-described structure, the manufacturing substrate 32 is in a horizontal state, the resistance strain gauge 12 is placed in the placing groove 321 so as to be maintained in a horizontal state, and is naturally extended, and then the liquid superelastic material is injected into the second cavity 331, and after cooling and solidifying, the upper substrate 111 is manufactured, in which the resistance strain gauge 12 is embedded in the lower surface of the upper substrate 111.
Further, the lower end surface of the preparation substrate 32 is provided with a lower annular groove 323, the lower annular groove 323 corresponds to the top of the vertical side of the first mold base 31, and the bottom of the first mold base 31 is provided with a lower glue injection port 312. After the preparing substrate 32 and the first die holder 31 are brought into close contact, the upper portion of the vertical side of the first die holder 31 is inserted into the lower annular groove 323, and at this time, the preparing substrate 32 and the first die holder 31 are integrated with the first cavity 311 therebetween. When the lower substrate 112 is manufactured using the above-described structure, a liquid superelastic material is injected into the second cavity 331, and after it is cooled and solidified, the lower substrate 112 is manufactured.
Further, the lower end surface of the preparation substrate 32 is provided with a protrusion 325, the protrusion 325 is disposed corresponding to the placement groove 321, and the shape and size of the protrusion 325 are the same as those of the placement groove 321. Alternatively, the size of the space of the protrusion 325 may be smaller than the placement groove 321.
Further, a second groove-shaped portion is arranged on an end face of a vertical side of the second die holder 33, a second protruding portion is arranged on the upper end face of the preparation substrate 32 corresponding to the second groove-shaped portion, and the second groove-shaped portion and the second protruding portion are matched and connected in an inserting mode to form a second inserting and positioning mechanism. Set up first trough-shaped portion on the terminal surface of the vertical side of first type seat 31, preparation base plate 32 lower extreme face is provided with first lug portion corresponding first trough-shaped position, and first trough-shaped portion is pegged graft with the cooperation of first lug portion and is formed first grafting positioning mechanism.
In order to manufacture the upper base 111 and the lower base 112, the upper base 111 and the lower base 112 need to be adhered together, because a part of the vertical side of the second mold base 33 is inserted into the upper annular groove 322, and a part of the vertical side of the first mold base 31 is inserted into the lower annular groove 323, a gap exists between the manufactured lowest ends of the vertical sides of the upper base 111 and the second mold base 33, and a gap exists between the manufactured lowest base 112 and the uppermost end of the vertical side of the first mold base 31, therefore, after the preparation substrate 32 is drawn away to enable the first mold base 31 and the second mold base 33 to be butted and integrated, a gap exists between the upper base 111 and the lower base 112.
The lower part of the vertical side of the second mold base 33 is provided with a glue injection pipe 333, and adhesive can be injected into the gap between the upper base 111 and the lower base 112 through the glue injection pipe 333, so that the flexible fabric sensor is molded.
Further, a receiving groove 324 for receiving the adhesive injection tube 333 is provided on the preparation substrate 32.
In the preparation of the upper base 111, since the resistance strain gauge 12 is required to be bonded to the lower surface of the upper base 111, the preparation substrate 32 is preferably in a horizontal state.
When the lower substrate 112 is peeled off, in order to leave the lower substrate 112 in the first mold 31, the preparation substrate 32 should be positioned right above the first mold 31, and the preparation substrate 32 is lifted up, so that the lower substrate 112 can be well left in the first mold 31;
when the upper base 111 is stripped, in order to leave the upper base 111 in the second mold seat 33, the preparation substrate 32 should be located right above the second mold seat 33, and the preparation substrate 32 is lifted upwards, so that the upper base 111 can be well left in the second mold seat 33, and therefore, before the preparation substrate 32 is separated from the second mold seat 33, the preparation substrate 32 and the second mold seat 33 need to be synchronously rotated by 180 degrees;
on the other hand, when it is necessary to bond the upper substrate 111 and the lower substrate 112, if the upper substrate 111 is located above the lower substrate 112 or the upper substrate 111 is located below the lower substrate 112 in a vertically stacked state, the substrate located above the upper substrate moves downward by gravity, so that the gap between the upper substrate 111 and the lower substrate 112 changes, and the upper substrate is difficult to slide downward as a whole, and the substrate is deformed by local sliding downward, so that the shape of the resistance strain gauge 12 is affected, and the resistance strain gauge 12 cannot be horizontally mounted in the flexible elastic body 11.
Therefore, in the case of manufacturing the flexible fabric sensor according to the present embodiment, it is necessary to continuously adjust the positions and states of the first mold 31, the manufacturing substrate 32, and the second mold 33.
To this end, the frame 3 of the present embodiment is connected with a first moving member 4, a second moving member 5 and a third moving member 6, the output end of the first moving member 4 is connected with the first mold base 31, the second moving member 5 is connected with the preparation substrate 32, and the third moving member 6 is connected with the second mold base 33.
The frame 3 is provided with a first bracket 34 and a second bracket 35, the first bracket 34 is provided with a first steering component 7, the first moving component 4 is installed on the output end of the first steering component 7, the first steering component 7 drives the first moving component 4 to horizontally steer, the second bracket 35 is provided with a second steering component 8, the second moving component 5 and the third moving component 6 are installed on the output end of the second steering component 8 together, and the second steering component 8 drives the second moving component 5 and the third moving component 6 to synchronously and horizontally rotate.
The first steering component 7 comprises a first steering motor 71 arranged on the first bracket 34, an output shaft of the first steering motor 71 is connected with a first steering plate 72, the first moving component 4 comprises a first telescopic cylinder 41 arranged on the first steering plate 72, a cylinder body of the first telescopic cylinder 41 is fixed on the first steering plate 72, and an output end of the first telescopic cylinder 41 is vertically connected with the bottom of the first profile seat 31.
The second steering component 8 comprises a second steering motor 81 arranged on the second support 35, an output shaft of the second steering motor 81 is connected with a second steering plate 82, the second moving component 5 comprises a second telescopic cylinder 51 arranged on the second steering plate 82, a cylinder body of the second telescopic cylinder 51 is fixed on the second steering plate 82, an output end of the second telescopic cylinder 51 is vertically connected with an edge part of the upper surface of the preparation substrate 32, the third moving component 6 comprises a third telescopic cylinder 61 arranged on the second steering plate 82, a cylinder body of the third telescopic cylinder 61 is fixed on the second steering plate 82, and an output end of the third telescopic cylinder 61 is vertically connected with the top of the second type seat 33.
The second support 35 is provided with a longitudinal moving component 9, the longitudinal moving component 9 is installed between the output end of the second telescopic cylinder 51 and the preparation substrate 32, the output end of the longitudinal moving component 9 is connected with the preparation substrate 32, the longitudinal moving component 9 comprises a longitudinal moving sliding groove 91 arranged on the output end of the second telescopic cylinder 51, a longitudinal moving sliding seat 92 is arranged in the longitudinal moving sliding groove 91 in a sliding manner, the moving track of the longitudinal moving sliding seat 92 is perpendicular to the extending direction of the second telescopic cylinder 51, and the preparation substrate 32 is connected with the longitudinal moving sliding seat 92.
When the flexible elastomer 11 is prepared, the specific steps comprise:
preparing an upper base 111 and a lower base 112, firstly, placing a resistance strain gauge 12 into a placing groove 321 on a preparation substrate 32, driving a first die holder 31, the preparation substrate 32 and a second die holder 33 to be close to each other until the three are stacked together, then respectively injecting an elastic material into a first die cavity 311 and a second die cavity 331, cooling, preparing the upper base 111 in the first die cavity 311, and preparing the lower base 112 in the second die cavity 331, wherein the resistance strain gauge 12 is embedded into the upper base 111, and the resistance strain gauge 12 and the upper base 111 are bonded together; selecting an adhesive material, wherein the thermal expansion coefficient of the adhesive material is the same as that of the flexible elastomer 11; and injection molding, namely filling the selected adhesive material into the gap between the upper base 111 and the lower base 112.
In the whole process of preparing the flexible fabric sensor, initially, the first mold base 31, the preparation substrate 32 and the second mold base 33 are in a vertically superposed state from bottom to top, when an upper substrate 111 and a lower substrate 112 need to be prepared, the first moving part 4, the second moving part 5 and the third moving part 6 move, the output end of the first telescopic cylinder 41 extends out to push the first mold base 31 to move upwards, the output end of the second telescopic cylinder 51 extends out to push the preparation substrate 32 to move downwards, the output end of the third telescopic cylinder 61 extends out to push the second mold base 33 to move downwards, so that the first mold base 31, the preparation substrate 32 and the second mold base 33 are close to each other, after the upper substrate 111 and the lower substrate 112 are prepared, the preparation substrate 32 is driven to move upwards, the output end of the third telescopic cylinder 61 retracts to drive the second mold base 33 to move upwards, and the preparation substrate 32 and the second mold base 33 are always kept in close contact in the process of moving upwards, in the process of moving up the prepared substrate 32 and the second mold 33, the prepared substrate 32 is separated from the lower substrate 112, and the lower substrate 112 is left in the first mold 31 under the influence of gravity.
Then, the second turning component 8 acts, the rotating shaft of the second turning motor 81 drives the second turning plate 82 to rotate 180 degrees, so that the preparation substrate 32 is changed from being positioned below the second mold seat 33 to being positioned above the second mold seat 33, then the third moving component 6 acts immovably, the second moving component 5 acts, the output end of the second telescopic cylinder 51 extends out, the preparation substrate 32 is pushed to move upwards, the preparation substrate 32 is separated from the second mold seat 33, meanwhile, the preparation substrate 32 is separated from the upper base body 111, and the upper base body 111 is left on the second mold seat 33 under the influence of gravity.
Finally, when the upper substrate 111 and the lower substrate 112 need to be bonded, the first steering component 7 and the second steering component 8 act, the rotating shaft of the first steering motor 71 drives the first steering plate 72 to rotate 90 °, the rotating shaft of the second steering motor 81 drives the second steering plate 82 to rotate 90 ° in reverse, the first die holder 31, the preparation substrate 32 and the second die holder 33 are horizontally arranged in sequence, the first cavity 311 and the second cavity 331 are oppositely arranged, the upper substrate 111 and the lower substrate 112 are opposite to each other with the preparation substrate 32 interposed therebetween, then the longitudinal moving component 9 acts, the linear motor in the longitudinal moving chute 91 drives the longitudinal moving slide 92 to move, so as to drive the preparation substrate 32 to move, the preparation substrate 32 does not obstruct the upper substrate 111 and the lower substrate 112, the preparation substrate 32 is not located between the first die holder 31 and the second die holder 33, the first moving component 4 and the third moving component 6 act, the first molded seat 31 and the second molded seat 33 are close to each other until the two are abutted, a gap is formed between the upper base body 111 and the lower base body 112, the adhesive is injected to realize the adhesion of the two, and the integral preparation of the flexible fabric sensor is also realized.
In the preparation process of the flexible fabric sensor of the embodiment, the flexible elastic body 11 is divided into two sections: an upper base body 111 and a lower base body 112, and simultaneously, a resistance strain sheet 12 is embedded into a flexible elastic body 11 to be divided into two steps, wherein the first step is to glue the resistance strain sheet 12 on the upper base body 111, the second step is to glue the upper base body 111 and the lower base body 112 together through an adhesive, the two surfaces of the resistance strain sheet 12 can be effectively fixed through the two steps, the sticking quality of the resistance strain sheet 12 is enhanced, the installation efficiency and the reliability of the sensor are improved, meanwhile, in the process of gluing the resistance strain sheet 12 on the upper base body 111, the resistance strain sheet 12 is horizontally placed on a preparation substrate 32 firstly, then an elastic material is injected, so that the sticking surface is very flat, the condition of air bubbles and holes is avoided, the sticking performance of the resistance strain sheet 12 is affected, and then when the upper base body 111 and the lower base body 112 are glued, the other sticking surface of the resistance strain sheet 12 is naturally very flat, therefore, the resistance strain gauge 12 has two very flat pasting surfaces, and the pasting quality of the resistance strain gauge 12 is improved.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. A preparation device of a flexible sensor is characterized in that: for producing a flexible sensor, the flexible sensor (1) comprising a flexible elastomer (11) and a resistive strain gauge (12), the resistive strain gauge (12) being embedded in the flexible elastomer (11);
the flexible elastic body (11) comprises an upper base body (111) and a lower base body (112), the upper base body (111) is overlapped at the upper end of the lower base body (112), an accommodating cavity (113) is formed between the upper base body (111) and the lower base body (112), the resistance strain gauge (12) is arranged in the accommodating cavity (113), adhesive is filled in the accommodating cavity (113), and the adhesive is used for filling gaps among the upper base body (111), the lower base body (112) and the resistance strain gauge (12) to enable the upper base body (111), the lower base body (112) and the resistance strain gauge (12) to be connected to form an integral structure;
the device comprises a rack (3), wherein a first die holder (31), a preparation substrate (32) and a second die holder (33) are sequentially arranged on the rack (3) from bottom to top, the center of the upper end face of the first die holder (31) is concave downwards to form a first cavity (311), and the center of the lower end face of the second die holder (33) is concave upwards to form a second cavity (331);
preparation base plate (32) are flat structure, just the upper surface center department of preparing base plate (32) is provided with and is used for placing recess (321) of placing of resistance strain gauge (12), the edge of first type seat (31) up end with the edge of terminal surface adopts first grafting positioning mechanism to connect under preparation base plate (32), the edge of terminal surface under second type seat (33) with the edge of preparation base plate (32) up end adopts the second to peg graft positioning mechanism and connects.
2. The manufacturing apparatus of a flexible sensor according to claim 1, wherein: the upper end face of the preparation base plate (32) is provided with an upper annular groove (322), the upper annular groove (322) surrounds the placement groove (321), the upper annular groove (322) corresponds to the lower end of the vertical side edge of the second type seat (33), the lower end face of the preparation base plate (32) is provided with a lower annular groove (323), and the lower annular groove (323) corresponds to the top of the vertical side edge of the first type seat (31).
3. The manufacturing apparatus of a flexible sensor according to claim 2, wherein: the bottom of first type seat (31) is provided with lower part injecting glue mouth (312), the top of second type seat (33) is provided with upper portion injecting glue mouth (332), the lower part of the vertical side of second type seat (33) is provided with gluing filling tube (333), be provided with on preparation base plate (32) and be used for holding tank (324) of gluing filling tube (333).
4. A manufacturing apparatus of a flexible sensor according to claim 3, wherein: the rack (3) is connected with a first moving component (4), a second moving component (5) and a third moving component (6), the output end of the first moving component (4) is connected with the first type seat (31), the second moving component (5) is connected with the preparation substrate (32), and the third moving component (6) is connected with the second type seat (33).
5. The manufacturing apparatus of a flexible sensor according to claim 4, wherein: the frame (3) is provided with a first support (34) and a second support (35), the first support (34) is provided with a first steering component (7), the second support (35) is provided with a second steering component (8), the first moving component (4) is installed on the output end of the first steering component (7), and the first steering component (7) drives the first moving component (4) to horizontally steer.
6. The manufacturing apparatus of a flexible sensor according to claim 5, wherein: the second moving component (5) and the third moving component (6) are jointly arranged on the output end of the second steering component (8), and the second steering component (8) drives the second moving component (5) and the third moving component (6) to synchronously rotate horizontally.
7. The manufacturing apparatus of a flexible sensor according to claim 6, wherein: the first steering component (7) comprises a first steering motor (71) installed on the first support (34), an output shaft of the first steering motor (71) is connected with a first steering plate (72), the first moving component (4) comprises a first telescopic cylinder (41) installed on the first steering plate (72), a cylinder body of the first telescopic cylinder (41) is fixed on the first steering plate (72), and an output end of the first telescopic cylinder (41) is connected with the bottom of the first profile seat (31).
8. The manufacturing apparatus of a flexible sensor according to claim 7, wherein: the second steering component (8) comprises a second steering motor (81) arranged on the second bracket (35), and an output shaft of the second steering motor (81) is connected with a second steering plate (82);
the third moving part (6) comprises a third telescopic cylinder (61) installed on the second steering plate (82), the cylinder body of the third telescopic cylinder (61) is fixed on the second steering plate (82), and the output end of the third telescopic cylinder (61) is vertically connected with the top of the second profile seat (33).
9. The manufacturing apparatus of a flexible sensor according to claim 8, wherein: the second moving component (5) comprises a second telescopic cylinder (51) arranged on the second steering plate (82), the cylinder body of the second telescopic cylinder (51) is fixed on the second steering plate (82), and the output end of the second telescopic cylinder (51) is vertically connected with the edge part of the upper surface of the preparation substrate (32);
a longitudinal moving part (9) is arranged on the second support (35), the longitudinal moving part (9) is installed between the output end of the second telescopic cylinder (51) and the preparation substrate (32), and the output end of the longitudinal moving part (9) is connected with the preparation substrate (32);
the longitudinal moving component (9) comprises a longitudinal moving sliding groove (91) arranged on the output end of the second telescopic cylinder (51), a longitudinal moving sliding seat (92) is arranged in the longitudinal moving sliding groove (91) in a sliding mode, the moving track of the longitudinal moving sliding seat (92) is perpendicular to the extending direction of the second telescopic cylinder (51), and the preparation substrate (32) is connected with the longitudinal moving sliding seat (92).
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| CN202210154244.XA CN114216593B (en) | 2022-02-21 | 2022-02-21 | Preparation device of flexible sensor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210154244.XA CN114216593B (en) | 2022-02-21 | 2022-02-21 | Preparation device of flexible sensor |
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| CN114216593B true CN114216593B (en) | 2022-04-26 |
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Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0150878B1 (en) * | 1984-01-28 | 1990-09-12 | Philips Patentverwaltung GmbH | Process for the manufacture of a thin film strain gage system |
| ATE506141T1 (en) * | 2006-06-16 | 2011-05-15 | Sang-Wan Joo | REMOTE CENTRAL COMPLIANT DEVICE WITH MEASUREMENT SENSOR |
| CN101424879B (en) * | 2008-12-12 | 2010-10-13 | 厦门大学 | Resistance straining feedback type closed-loop two-dimension flexible hinge work bench |
| CN204881657U (en) * | 2015-06-09 | 2015-12-16 | 中国科学院深圳先进技术研究院 | Resistance strain gauge and resistance strain gauge sensor |
| US9868217B2 (en) * | 2015-09-04 | 2018-01-16 | Univeristy Of Maryland | All-elastomer 3-axis contact resistive tactile sensor arrays and micromilled manufacturing methods thereof |
| CN108318162B (en) * | 2018-01-10 | 2019-11-29 | 中山大学 | A kind of flexible sensor and preparation method thereof |
| CN109915450B (en) * | 2019-04-23 | 2020-12-08 | 中车齐齐哈尔车辆有限公司 | Strain gauge pasting device |
| CN110118524B (en) * | 2019-05-15 | 2022-02-25 | 胡天旭 | Attached resistance strain sensor assembly and mounting process thereof |
| CN110333012B (en) * | 2019-07-24 | 2020-07-14 | 电子科技大学 | Resistive-capacitive-variable composite two-dimensional strain sensor and preparation method thereof |
| CN112816112B (en) * | 2021-01-18 | 2021-11-02 | 天津大学 | Flexible sensor assembly |
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