CN114216593B - A preparation device for a flexible sensor - Google Patents

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

A device for preparing a flexible sensor

technical field

The invention relates to the technical field of intelligent mattresses, in particular to a preparation device of a flexible sensor.

Background technique

The intelligent mattress in the prior art can obtain the sleep state of the human body by intermittently collecting the sleep data of the human body, and analyzing and comparing the data.

At present, all-night polysomnography monitoring method is used in sleep monitoring in clinical experiments, and a large number of wires and sensors need to be connected to various parts of the subject's body. Intrusive monitoring will also cause great interference to the natural sleep state of the human body. more complicated. In the existing research, the sleep monitoring mattresses use external additional sensors such as air cushions and springs, and also distribute the sensor modules in each layer structure to obtain a multi-layer composite sensor. The sensor is obtained by longitudinally weaving it into the fabric, and no matter what kind of sensor it is, it has a certain influence on the softness of the fabric.

In the existing flexible fabric sensors, the strain gauges are usually pasted on the surface of the flexible substrate or embedded in the structure in the form of an array to monitor the response signal of the structure to the environmental excitation in real time, and extract the structural state parameters and environmental parameters from it. Structural parameters generally include structural stress, strain, load, displacement, and damage, while environmental parameters include temperature, humidity, and pressure. The signal received by the sensor is easily affected by the adhesive layer. The change of the adhesive layer of the bonding sensor due to environmental factors will cause errors in the damage results obtained after signal processing, which will cause difficulties in monitoring and easily lead to misjudgment.

In the existing sensor, the strain gauge is put into the sensor body, but the current preparation device has the following defects: the adhesive surface is not flat, and bubbles and holes are prone to occur, which directly affects the bonding performance of the sensor.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a preparation device for a flexible sensor, so as to solve the problem of air bubbles and holes in the prior art and improve the bonding performance of the sensor.

In order to solve the above-mentioned technical problems, the present invention specifically provides the following technical solutions:

A preparation device for a flexible sensor, used for preparing a flexible sensor, the flexible sensor comprises a flexible elastic body and a resistance strain gauge, and the resistance strain gauge is embedded in the flexible elastic body;

The flexible elastic body includes an upper base body and a lower base body, the upper base body is superimposed on the upper end of the lower base body, a accommodating cavity is arranged between the upper base body and the lower base body, and the resistance strain gauge is arranged at the In the accommodating cavity, the accommodating cavity is filled with adhesive, and the adhesive is used to fill the gap between the upper base, the lower base and the resistance strain gauge, so that the The upper base body, the lower base body and the resistance strain gauge are connected to form an integral structure;

Including a frame, the frame is provided with a first mold seat, a preparation substrate and a second mold seat in sequence from bottom to top, the center of the upper end face of the first mold seat is concave to form a first mold cavity, the first mold seat The center of the lower end face of the second type seat is concave to form a second cavity;

The preparation substrate has a flat plate structure, and the center of the upper surface of the preparation substrate is provided with a placement groove for placing the resistance strain gauge, and the edge of the upper end face of the first type seat is connected to the lower part of the preparation substrate. The edge of the end face is connected by a first plug positioning mechanism, and the edge of the lower end face of the second mold base is connected with the edge of the upper end face of the preparation substrate by a second plug positioning mechanism.

As a preferred solution of the present invention, the upper end surface of the preparation substrate is provided with an upper annular groove, the upper annular groove surrounds the placement groove, and the upper annular groove and the second type seat are provided with an upper annular groove. The lower ends of the vertical sides correspond to each other, and the lower end surface of the preparation substrate is provided with a lower annular groove, and the lower annular groove corresponds to the top of the vertical sides of the first type seat.

As a preferred solution of the present invention, the bottom of the first type seat is provided with a lower glue injection port, the top of the second type seat is provided with an upper glue injection port, and the vertical side of the second type seat is provided with a lower glue injection port. The lower part is provided with an adhesive injection pipe, and the preparation substrate is provided with an accommodating groove for accommodating the adhesive injection pipe.

As a preferred solution of the present invention, the frame is connected with a first moving part, a second moving part and a third moving part, and the output end of the first moving part is connected to the first type seat The second moving part is connected with the preparation substrate, and the third moving part is connected with the second mold seat.

As a preferred solution 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, and the second bracket is provided with a second steering member, The first moving member is mounted on the output end of the first steering member, and the first steering member drives the first moving member to turn horizontally.

As a preferred solution of the present invention, the second moving member and the third moving member are jointly mounted on the output end of the second steering member, and the second steering member drives the second moving member. The direction component and the third moving component rotate horizontally synchronously.

As a preferred solution of the present invention, the first steering component includes a first steering motor mounted on the first bracket, the output shaft of the first steering motor is connected with a first steering plate, and the first steering plate is connected to the output shaft of the first steering motor. The moving part includes a first telescopic cylinder mounted on the first steering plate, the cylinder body of the first telescopic cylinder is fixed on the first steering plate, and the output end of the first telescopic cylinder is connected to the The bottom of the first type seat is connected.

As a preferred solution of the present invention, the second steering component includes a second steering motor mounted on the second bracket, and the output shaft of the second steering motor is connected with a second steering plate;

The third moving part includes a third telescopic cylinder mounted on the second steering plate, the cylinder block of the third telescopic cylinder is fixed on the second steering plate, and the output of the third telescopic cylinder is The end is vertically connected with the top of the second type seat.

As a preferred solution of the present invention, the second moving member includes a second telescopic cylinder mounted on the second steering plate, and the cylinder body of the second telescopic cylinder is fixed on the second steering plate , the output end of the second telescopic cylinder is vertically connected with the edge of the upper surface of the preparation substrate;

A longitudinal moving member is arranged on the second bracket, the longitudinal moving member is installed between the output end of the second telescopic cylinder and the preparation substrate, and the output end of the longitudinal moving member is connected to the preparation substrate connected;

The longitudinal moving part includes a longitudinal moving chute arranged on the output end of the second telescopic cylinder, a longitudinal moving sliding seat is slidably arranged in the longitudinal moving sliding groove, and the movement track of the longitudinal moving sliding seat is the same as that of the The extending direction of the second telescopic cylinder is vertical, and the preparation substrate is connected with the longitudinal moving carriage.

Compared with the prior art, the present invention has the following beneficial effects:

In the preparation process of the flexible fabric sensor of the present invention, the flexible elastic body is divided into two sections: the upper base body and the lower base body, and the resistance strain gauge is embedded in the flexible elastomer into two steps. First, the resistance strain gauge is glued on the On the upper base, the upper base and the lower base are glued together by adhesive, so that both sides of the resistance strain gauge can be effectively fixed. It is placed horizontally on the prepared substrate, and then injected with elastic material, so that the adhesive surface is very flat, avoiding the existence of air bubbles and holes, which will affect the bonding performance of the resistance strain gauge. The other sticking surface of the sheet is naturally very flat, so that the resistance strain gauge has two very flat sticking surfaces, which enhances the sticking quality of the resistance strain gauge and improves the installation efficiency and reliability of the sensor.

Description of drawings

In order to illustrate the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that are required to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only exemplary, and for those of ordinary skill in the art, other implementation drawings can also be obtained according to the extension of the drawings provided without creative efforts.

FIG. 1 is an overall schematic diagram of a flexible fabric sensor assembly provided by an embodiment of the present invention;

FIG. 2 is an overall schematic diagram 1 of a preparation device for a flexible fabric sensor assembly according to an embodiment of the present invention;

FIG. 3 is a second overall schematic diagram of a preparation device for a flexible fabric sensor assembly provided by an embodiment of the present invention;

4 is a schematic side view of a first steering component provided by an embodiment of the present invention;

FIG. 5 is a schematic diagram of a longitudinal moving component provided by an embodiment of the present invention.

The symbols in the figure are as follows:

1-flexible sensor; 2-fabric base layer; 3-frame; 4-first moving part; 5-second moving part; 6-third moving part; 7-first turning part; 8-th Two steering parts; 9-longitudinal moving parts;

11-flexible elastomer; 111-upper base; 112-lower base; 113-accommodating cavity; 12-resistance strain gauge;

31-the first type seat; 32-preparing the substrate; 33-the second type seat; 34-the first bracket; 35-the second bracket;

311- first cavity; 312- lower glue injection port;

321-placement groove; 322-upper annular groove; 323-lower annular groove; 324-accommodating groove; 325-protrusion;

331- the second cavity; 332- the upper glue injection port; 333- glue injection pipe;

41 - the first telescopic cylinder;

51 - the second telescopic cylinder;

61-The third telescopic cylinder;

71- the first steering motor; 72- the first steering plate;

81-Second steering motor; 82-Second steering plate;

91-longitudinal moving chute; 92-longitudinal moving slide.

Detailed ways

In order to make the purposes, features and advantages of the present invention more obvious and understandable, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the following description The embodiments described above are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be co-located components at the same time. When a component is considered to be "set on" another component, it can be set directly on the other component or there may be a centered set of components at the same time.

In addition, the terms "long", "short", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present invention, rather than indicating or implying the referred device. Or the original must have this specific orientation and operate in a specific orientation configuration, which should not be construed as a limitation of the present invention.

The technical solutions of the present invention are further described below with reference to the accompanying drawings and through specific embodiments.

Example 1

As shown in FIG. 1 , the present invention provides a flexible fabric sensor assembly, which can measure various mechanical quantities, and can improve the measurement sensitivity, the measurement result is accurate and the linearity is good, and the sensor assembly is stable and convenient for measurement. The flexible fabric sensor assembly has:

fabric base layer 2;

A flexible sensor 1, the flexible sensor 1 is arranged on the fabric base layer 2;

The flexible sensor 1 includes a flexible elastic body 11 and a resistance strain gauge 12 , the resistance strain gauge 12 is embedded in the flexible elastic body 11 , and the flexible elastic body 11 is cured from a liquid superelastic material. Specifically, the flexible elastic body 11 includes an upper base body 111 and a lower base body 112, the upper base body 111 is superimposed on the upper end of the lower base body 112, an accommodation cavity 113 is provided between the upper base body 111 and the lower base body 112, and the resistance strain gauge 12 is provided at In the accommodating cavity 113, the accommodating cavity 113 is filled with adhesive, and the adhesive is used to fill the gap between 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 The strain gauges 12 are connected to form an integral structure.

In the present invention, an accommodation space for accommodating the resistance strain gauge 12 is formed between the upper base body 111 and the lower base body 112, and the accommodation space is filled with adhesive, so that the adhesive can fill the resistance strain gauge 12, the upper base body 111 and the In the gap between the lower bases 112, the resistance strain gauge 12 is fixed in the flexible elastic body 11 by the above-mentioned filling adhesive, which does not need to be installed by the existing adhesive layer bonding method, thereby avoiding the difficult control caused by the bonding method. The thickness of the adhesive layer is uniform, the adhesive surface is not flat enough, and the adhesive layer is prone to problems of air bubbles and holes, so that the resistance strain gauge 12 can be firmly installed in the flexible elastomer 11 to ensure the stability of the connection of the resistance strain gauge. At the same time, the measurement sensitivity of the flexible sensor 1 is also improved, and the measurement result is accurate and linear.

At the same time, the resistance strain gauge 12 is encapsulated between the upper base body 111 and the lower base body 112 to protect the resistance strain gauge 12 . Then, according to the use environment of the resistance strain gauge 12, the adhesive used is selected, and the expansion coefficient of the adhesive is close to the expansion coefficient of the upper base 111 and the lower base 112, so that the thermal expansion coefficient of the adhesive and the flexible elastomer 11 are consistent or close to each other, thereby ensuring the connection stability between the resistance strain gauge 12 and the flexible elastic body 11 .

Embodiment 2

As shown in FIG. 1 to FIG. 4 , the present invention also provides a preparation device for a flexible sensor, which is used for preparing the above-mentioned flexible sensor, including a frame 3, and the frame 3 is provided with a first type seat 31, The substrate 32 and the second mold seat 33 are prepared. The center of the upper end face of the first mold seat 31 is concave to form a first mold cavity 311, and the center of the lower end surface of the second mold seat 33 is concave to form a second mold cavity 331. The cavity 311 is used to form the lower base body 112 , and the second cavity 331 is used to form the upper base body 111 .

Specifically, the preparation substrate 32 has a flat plate-like structure, and the center of the upper surface of the preparation substrate 32 is provided with a placement groove 321 for placing the resistance strain gauge 12 . Cavity 113 is the same. The edge of the lower end surface of the second type seat 33 and the edge of the upper end surface of the preparation substrate 32 are connected by a second plug positioning mechanism, and the edge of the upper end surface of the first type seat 31 and the edge of the lower end surface of the preparation substrate 32 are connected by the first The plug-in positioning mechanism is connected. The second type seat 33 is used to prepare the upper base body 111 after being inserted and positioned with the preparation substrate 32 , and the first type base 31 is used to prepare the lower base body 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 seat 33 . . After the preparation substrate 32 and the second mold seat 33 are approached and contacted, the lower part of the vertical side of the second mold seat 33 is inserted into the upper annular groove 322, at this time, the preparation substrate 32 and the second mold seat 33 are connected as a whole. There is a second cavity 331 between the two, and an upper glue injection port 332 is provided on the top of the second seat 33 . When preparing the upper base body 111 by using the above structure, the preparation substrate 32 is in a horizontal state, and the resistance strain gauge 12 can be kept in a horizontal state when placed in the placement groove 321 , and stretches naturally, and then the liquid superelastic material is injected into the second cavity 331 , after it is cooled and solidified, the upper base body 111 is prepared, and at this time, the resistance strain gauge 12 is embedded in the lower surface of the upper base body 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 type seat 31, and the bottom of the first type seat 31 is provided with a lower glue injection. mouth 312. After the preparation substrate 32 and the first type seat 31 are approached and contacted, the upper part of the vertical side of the first type seat 31 is inserted into the lower annular groove 323. At this time, the preparation substrate 32 and the first type seat 31 are connected as a whole. Between the two is the first cavity 311 . When using the above structure to prepare the lower base 112, the liquid superelastic material is injected into the second cavity 331, and after it is cooled and solidified, the lower base 112 can be obtained.

Further, the lower end surface of the preparation substrate 32 is provided with protrusions 325 . The protrusions 325 are provided corresponding to the placement grooves 321 , and the shape and size of the protrusions 325 are the same as those of the placement grooves 321 . Optionally, the size of the space of the protrusion 325 may be smaller than that of the placement groove 321 .

Further, a second groove-shaped portion is provided on the end surface of the vertical side of the second mold seat 33, and a second convex portion is provided on the upper end surface of the preparation substrate 32 corresponding to the position of the second groove-shaped portion. A second insertion positioning mechanism is formed by cooperating and inserting with the second protruding block portion. A first groove-shaped portion is provided on the end surface of the vertical side of the first type seat 31, and a first convex portion is provided on the lower end surface of the preparation substrate 32 corresponding to the position of the first groove-shaped portion. The blocks are matched and inserted to form a first insertion positioning mechanism.

When the upper base 111 and the lower base 112 are made, they need to be glued together. Since a part of the vertical side of the second type seat 33 is inserted into the upper annular groove 322, the vertical side of the first type seat 31 A part of the upper base 111 is inserted into the lower annular groove 323, so there is a gap between the obtained upper base 111 and the lowermost end of the vertical side of the second type seat 33, and the obtained lower base 112 is vertical to the first type base 31. There is a gap between the uppermost ends of the sides, so after the preparation substrate 32 is drawn away to make the first mold seat 31 and the second mold seat 33 collide as a whole, there is a gap between the upper base body 111 and the lower base body 112 at this time. .

The lower part of the vertical side of the second type seat 33 is provided with an adhesive injection pipe 333. Through the adhesive injection pipe 333, adhesive can be injected into the gap between the upper base body 111 and the lower base body 112 to form the flexible fabric sensor .

Further, the preparation substrate 32 is provided with an accommodating groove 324 for accommodating the glue injection pipe 333 .

When preparing the upper base body 111 , since the resistance strain gauge 12 needs to be adhered to the lower surface of the upper base body 111 , it is best to prepare the substrate 32 in a horizontal state.

When the lower base body 112 is peeled off, in order to keep the lower base body 112 in the first mold seat 31, the preparation substrate 32 should be located directly above the first mold seat 31, and the preparation substrate 32 is lifted upward, so that the lower base body 112 can be better to remain in the first type seat 31;

When the upper base body 111 is peeled off, in order to keep the upper base body 111 in the second mold seat 33, the preparation substrate 32 should be located directly above the second mold seat 33, and the preparation substrate 32 is lifted upward, so that the upper base body 111 can be relatively Therefore, before the preparation substrate 32 and the second mold seat 33 are separated, the preparation substrate 32 and the second mold seat 33 need to be rotated synchronously by 180°;

When it is necessary to bond the upper base 111 and the lower base 112, if the upper base 111 is located above the lower base 112 or the upper base 111 is located under the lower base 112 in a vertically stacked state, the base above the base 112 will be stacked under the action of gravity. When the upper substrate moves down, the gap between the upper substrate 111 and the lower substrate 112 changes, and it is difficult to slide down as a whole when the upper substrate moves down. The strain gauge 12 cannot be installed horizontally in the flexible elastic body 11 .

Therefore, in the preparation of the flexible fabric sensor in this embodiment, the positions and states of the first type seat 31 , the preparation substrate 32 and the second type seat 33 need to be constantly adjusted.

To this end, in this embodiment, the frame 3 is connected with a first moving part 4, a second moving part 5 and a third moving part 6, and the output end of the first moving part 4 is connected with the first type seat 31, The second moving part 5 is connected with the preparation substrate 32 , and the third moving part 6 is connected with the second mold seat 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 member 7, the first moving member 4 is installed on the output end of the first steering member 7, and the first steering member The part 7 drives the first moving part 4 to turn horizontally, the second bracket 35 is provided with a second turning part 8 , and the second moving part 5 and the third moving part 6 are jointly installed on the output end of the second turning part 8 , the second steering member 8 drives the second moving member 5 and the third moving member 6 to rotate synchronously and horizontally.

The first steering member 7 includes a first steering motor 71 mounted on the first bracket 34 , the output shaft of the first steering motor 71 is connected with a first steering plate 72 , and the first moving member 4 includes a first steering plate 72 mounted on the first steering plate 72 . The first telescopic cylinder 41 on the upper part, the cylinder body of the first telescopic cylinder 41 is fixed on the first turning plate 72 , and the output end of the first telescopic cylinder 41 is vertically connected with the bottom of the first type seat 31 .

The second steering member 8 includes a second steering motor 81 mounted on the second bracket 35 , the output shaft of the second steering motor 81 is connected with a second steering plate 82 , and the second moving member 5 includes a second steering plate 82 mounted on the second steering plate 82 . The second telescopic cylinder 51 on the upper part, the cylinder body of the second telescopic cylinder 51 is fixed on the second turning plate 82, the output end of the second telescopic cylinder 51 is vertically connected with the edge of the upper surface of the preparation base plate 32, and the third moving part is 6. Including the third telescopic cylinder 61 mounted on the second steering plate 82, the cylinder body of the third telescopic cylinder 61 is fixed on the second steering plate 82, the output end of the third telescopic cylinder 61 and the top of the second type seat 33 connected vertically.

The second bracket 35 is provided with a longitudinal moving member 9, the longitudinal moving member 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 member 9 is connected with the preparation substrate 32, and the longitudinal moving member 9 includes a longitudinal moving chute 91 arranged on the output end of the second telescopic cylinder 51, a longitudinal moving slide 92 is slidably arranged in the longitudinal moving chute 91, and the movement track of the longitudinal moving The outgoing direction is vertical, and the preparation substrate 32 is connected to the longitudinally moving carriage 92 .

When preparing the flexible elastomer 11, the specific steps include:

To prepare the upper base 111 and the lower base 112, first, put the resistance strain gauge 12 into the placement groove 321 on the preparation substrate 32, and drive the first type seat 31, the preparation substrate 32 and the second type seat 33 to approach each other until the three Laminate together, and then inject elastic material into the first cavity 311 and the second cavity 331 respectively, and cool them to form the upper base 111 in the first cavity 311 and the lower base in the second cavity 331 The base body 112, wherein the resistance strain gauge 12 is embedded in the upper base body 111, and the resistance strain gauge 12 and the upper base body 111 are bonded together; The coefficients are the same; for injection molding, the selected adhesive material is filled into the gap between the upper base body 111 and the lower base body 112 .

In the whole process of preparing the flexible fabric sensor, at the beginning, the first type seat 31 , the preparation substrate 32 and the second type seat 33 are in a state of vertical stacking from bottom to top. When the upper base 111 and the lower base 112 need to be prepared, the first When the moving part 4, the second moving part 5 and the third moving part 6 act, the output end of the first telescopic cylinder 41 is extended, pushing the first type seat 31 to move up, and the output end of the second telescopic cylinder 51 is extended , push the preparation substrate 32 down, the output end of the third telescopic cylinder 61 extends, pushes the second mold seat 33 down, so that the first mold seat 31, the preparation substrate 32 and the second mold seat 33 are close to each other, and the upper base 111 After the preparation with the lower base 112, the preparation substrate 32 is driven to move up, the output end of the third telescopic cylinder 61 is retracted, and the second mold seat 33 is driven to move up, and the preparation substrate 32 and the second mold seat 33 are always in the process of moving up. The close contact is maintained, and during the upward movement of the preparation substrate 32 and the second mold seat 33 , the preparation substrate 32 is separated from the lower base 112 , and the lower base 112 remains in the first mold seat 31 under the influence of gravity.

After that, the second steering member 8 is actuated, and the rotating shaft of the second steering motor 81 drives the second steering plate 82 to rotate 180°, so that the preparation substrate 32 is changed from being located under the second mold seat 33 to being located above the second mold seat 33, and then the first The third moving part 6 does not move, the second moving part 5 moves, the output end of the second telescopic cylinder 51 extends, and pushes the preparation substrate 32 to move up, so that the preparation substrate 32 is separated from the second mold seat 33, and the preparation The base plate 32 is out of contact with the upper base body 111 , and the upper base body 111 remains in the second mold seat 33 under the influence of gravity.

Finally, when the upper base 111 and the lower base 112 need to be bonded, the first steering member 7 and the second steering member 8 act, the rotating shaft of the first steering motor 71 drives the first steering plate 72 to rotate 90°, and the second steering motor The rotating shaft of 81 drives the second turning plate 82 to rotate 90° in the opposite direction, so that the first mold seat 31, the preparation substrate 32 and the second mold seat 33 are horizontally arranged in sequence, and the first mold cavity 311 and the second mold cavity 331 are placed opposite to each other, so that the The upper base 111 and the lower base 112 are opposed to each other across the preparation substrate 32, and then the longitudinal moving member 9 moves, and the linear motor in the longitudinal moving chute 91 drives the longitudinal moving carriage 92 to move, thereby driving the preparation substrate 32 to move, so that the preparation substrate 32 does not move. Then block the upper base body 111 and the lower base body 112, prepare the substrate 32 not between the first type seat 31 and the second type seat 33, the first moving part 4 and the third moving part 6 move, the first type seat 31 and the second type seat 33. The second-type seats 33 are close to each other until they collide, forming a gap between the upper base 111 and the lower base 112 , injecting adhesive to realize the adhesion of the two, and also realize the overall preparation of the flexible fabric sensor.

In the preparation process of the flexible fabric sensor of this embodiment, the flexible elastic body 11 is divided into two parts: the upper base body 111 and the lower base body 112 , and the resistance strain gauge 12 is also embedded in the flexible elastic body 11 into two steps. Step 1 In order to glue the resistance strain gauge 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 operations of these two steps enable both sides of the resistance strain gauge 12 to be obtained. Effectively fix, enhance the pasting quality of the resistance strain gauge 12, improve the installation efficiency and reliability of the sensor, and at the same time in the process of gluing the resistance strain gauge 12 to the upper base 111, the resistance strain gauge 12 is first placed horizontally on the preparation substrate 32 , and then inject the elastic material to make the sticking surface very flat to avoid the existence of air bubbles and holes, thereby affecting the bonding performance of the resistance strain gauge 12. Then, when the upper base 111 and the lower base 112 are glued, the resistance strain gauge 12 The other sticking surface is naturally very flat, so that the resistance strain gauge 12 has two very flat sticking surfaces, which improves the sticking quality of the resistance strain gauge 12 .

As mentioned above, the above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand: The technical solutions described in the embodiments are modified, or some technical features thereof are equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (9)

1. A preparation device for a flexible sensor, characterized in that: for preparing a flexible sensor, the flexible sensor (1) comprises a flexible elastomer (11) and a resistance strain gauge (12), the resistance strain gauge (12) embedded in the flexible elastomer (11); The flexible elastic body (11) includes an upper base body (111) and a lower base body (112), the upper base body (111) is superimposed on the upper end of the lower base body (112), the upper base body (111) and the An accommodating cavity (113) is provided between the lower bases (112), the resistance strain gauge (12) is arranged in the accommodating cavity (113), and the accommodating cavity (113) is filled with adhesive The adhesive is used to fill the gaps between the upper base body (111), the lower base body (112) and the resistance strain gauge (12), so that the upper base body (111), the The lower base body (112) and the resistance strain gauge (12) are connected to form an integral structure; It comprises a frame (3), the frame (3) is provided with a first type seat (31), a preparation substrate (32) and a second type seat (33) in sequence from bottom to top, the first type seat ( 31) A first cavity (311) is formed at the center of the upper end surface, and a second cavity (331) is formed at the center of the lower end surface of the second seat (33); The preparation substrate (32) has a flat plate-like structure, and a placement groove (321) for placing the resistance strain gauge (12) is provided at the center of the upper surface of the preparation substrate (32). The edge of the upper end surface of the seat (31) and the edge of the lower end surface of the preparation substrate (32) are connected by a first plug positioning mechanism, and the edge of the lower end surface of the second type seat (33) is connected to the preparation substrate (32). (32) The edge of the upper end face is connected by a second plug-in positioning mechanism. 2. The device for preparing a flexible sensor according to claim 1, characterized in that: the upper end surface of the preparation substrate (32) is provided with an upper annular groove (322), and the upper annular groove (322) Surrounding the placement groove (321), the upper annular groove (322) corresponds to the lower end of the vertical side of the second type seat (33), and the lower end surface of the preparation substrate (32) is provided There is a lower annular groove (323), and the lower annular groove (323) corresponds to the top of the vertical side of the first type seat (31). 3 . The device for preparing a flexible sensor according to claim 2 , wherein: the bottom of the first type seat ( 31 ) is provided with a lower glue injection port ( 312 ), and the second type seat ( 33 ). 4 . ) is provided with an upper glue injection port (332), the lower part of the vertical side of the second type seat (33) is provided with an adhesive injection pipe (333), and the preparation substrate (32) is provided with a container for accommodating The accommodating groove (324) of the glue injection pipe (333). 4. The device for preparing a flexible sensor according to claim 3, characterized in that: the frame (3) is connected with a first moving part (4), a second moving part (5) and a third moving part (5) A moving part (6), the output end of the first moving part (4) is connected with the first type seat (31), and the second moving part (5) is connected with the preparation substrate (32) connected, the third moving part (6) is connected with the second type seat (33). 5. The device for preparing a flexible sensor according to claim 4, characterized in that: 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 member (7), the second bracket (35) is provided with a second steering member (8), and the first moving member (4) is mounted on the first steering member On the output end of the component (7), the first steering component (7) drives the first moving component (4) to turn horizontally. 6. The device for preparing a flexible sensor according to claim 5, characterized in that: the second moving part (5) and the third moving part (6) are jointly installed on the second turning part On the output end of the component (8), the second steering component (8) drives the second moving component (5) and the third moving component (6) to rotate synchronously and horizontally. 7. The device for preparing a flexible sensor according to claim 6, wherein the first steering component (7) comprises a first steering motor (71) mounted on the first bracket (34) , the output shaft of the first steering motor (71) is connected with a first steering plate (72), and the first moving member (4) includes a first telescopic member (72) mounted on the first steering plate (72). A cylinder (41), the cylinder body of the first telescopic cylinder (41) is fixed on the first steering plate (72), and the output end of the first telescopic cylinder (41) is connected to the first type seat ( 31) connected to the bottom. 8 . The device for preparing a flexible sensor according to claim 7 , wherein the second steering component ( 8 ) comprises a second steering motor ( 81 ) mounted on the second bracket ( 35 ). 9 . , the output shaft of the second steering motor (81) is connected with a second steering plate (82); The third moving part (6) includes a third telescopic cylinder (61) mounted on the second turning plate (82), and the cylinder body of the third telescopic cylinder (61) is fixed on the second telescopic cylinder (61). On the steering plate (82), the output end of the third telescopic cylinder (61) is vertically connected to the top of the second type seat (33). 9 . The device for preparing a flexible sensor according to claim 8 , wherein the second moving member ( 5 ) comprises a second telescopic cylinder ( 51), the cylinder body of the second telescopic cylinder (51) is fixed on the second turning plate (82), and the output end of the second telescopic cylinder (51) is connected to the upper surface of the preparation substrate (32). The sides are connected vertically; The second bracket (35) is provided with a longitudinal moving part (9), and the longitudinal moving part (9) is installed between the output end of the second telescopic cylinder (51) and the preparation base plate (32) , and the output end of the longitudinal moving part (9) is connected with the preparation substrate (32); The longitudinal moving part (9) includes a longitudinal moving chute (91) arranged on the output end of the second telescopic cylinder (51), and a longitudinal moving sliding seat (91) is slidably arranged in the longitudinal moving chute (91). 92), the moving track of the longitudinally moving carriage (92) is perpendicular to the extending direction of the second telescopic cylinder (51), and the preparation substrate (32) is connected to the longitudinally moving carriage (92).

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