Online monitoring and self-adaptive control device based on fabric coating thickness

Abstract

The invention relates to the technical field of fabric processing, and discloses an online monitoring and self-adaptive control device based on fabric coating thickness, which comprises a conveying device, a plurality of displacement sensors are arranged above the conveying device, and the displacement sensors are distributed at intervals along the length direction of the conveying device; a self-adaptive coating assembly is arranged above the conveying device, a protection assembly is arranged on the outer side of the self-adaptive coating assembly, a compaction assembly is arranged on one side of the self-adaptive coating assembly, the self-adaptive coating assembly comprises a coating head, and the coating head is composed of two splicing sub-heads symmetrically arranged in the width direction of the conveying device. The surface of the fabric is coated with the coating in the coating cavity through the coating head, the coating head is composed of the two splicing sub-heads symmetrically arranged in the width direction of the conveying device, the length of the coating cavity can be adjusted by replacing the single splicing sub-head, and therefore the coating device can flexibly adapt to the fabrics of different sizes.

Description

Technical Field

[0001] The present invention relates to the technical field of fabric processing, and particularly to an on-line monitoring and adaptive control device for fabric coating thickness. Background Art

[0002] Functional coating fabrics use coating technology to endow fabrics with specific functions such as waterproof and breathable, stain-resistant and antibacterial, antistatic and radiation-proof, moisture absorption and heat dissipation. Due to meeting the highly functional requirements of modern society for textiles, they are widely used in many fields such as industry, military, medical, and protection. Compared with general printing and finishing technologies, functional coating fabrics can not only create unique styles, hand feelings and appearances, but also add special functions, greatly improving the added value of products, and the market demand is considerable.

[0003] The Chinese invention patent with the publication number of CN102493146B discloses an intelligent on-line detection and adaptive control device for the coating thickness of functional coating fabrics. Left and right fabric warp conveying devices are installed on the base. The two sides of the right fabric warp conveying device are fixed, and the left fabric warp conveying device can move left and right. A lead screw is installed inside the left fabric warp conveying device and is connected to a weft tension adjusting motor. Both sides of the fabric are fixed to the conveying devices respectively. A fabric weft tension tester is located below the fabric near the left fabric warp conveying device. A doctor blade is installed above the fabric. A displacement sensor for detecting the uniform consistency of the coating thickness is installed below the doctor blade. A winding motor and an unwinding motor are respectively connected to a winding shaft and an unwinding shaft. The weft tension tester and the displacement sensor are connected to a central processing unit. The present invention is applicable to various production occasions of functional coating fabrics, has the advantages of high production efficiency, low defective product rate, etc., and can greatly reduce the workload of manual detection.

[0004] The above patent cannot quickly adjust the actual coating device according to the size of the fabric, making it inapplicable to process fabrics of different sizes, thus affecting its scope of application. Summary of the Invention

[0005] (1) Technical Problems to be Solved

[0006] In view of the deficiencies of the prior art, the present invention provides an on-line monitoring and adaptive control device for fabric coating thickness, which has the advantages of being able to process fabrics of different sizes, etc., and solves the problem of limited scope of application.

[0007] (2) Technical Solutions

[0008] To achieve the above object, the present invention provides the following technical solutions:

[0009] An on-line monitoring and adaptive control device for fabric coating thickness, comprising a conveying device, above which a plurality of displacement sensors are arranged, and the displacement sensors are spaced along the length direction of the conveying device. An adaptive coating assembly is arranged above the conveying device, a protective assembly is arranged outside the adaptive coating assembly, and a compaction assembly is arranged on one side of the adaptive coating assembly.

[0010] Preferably, the adaptive coating assembly includes a coating head, which is composed of two splicing sub-heads symmetrically arranged in the width direction of the conveying device. The two splicing sub-heads enclose a coating cavity, and both splicing sub-heads are U-shaped.

[0011] Connecting protrusions are arranged on the outer walls of the splicing sub-heads, and the two connecting protrusions are threadedly assembled through a bolt structure.

[0012] A flow regulating block is arranged in the coating cavity. The top end of the flow regulating block is U-shaped and is sleeved and assembled inside the top ends of the two splicing sub-heads.

[0013] Preferably, the adaptive coating assembly further includes an adjusting cylinder and a control unit. The adjusting cylinder and each displacement sensor are electrically connected to the control unit. The adjusting cylinder is connected to any one of the splicing sub-heads. The control unit controls the adjusting cylinder to drive the splicing sub-head to move adaptively in the vertical direction through the transmitted information of each displacement sensor.

[0014] Preferably, through holes are formed in the connecting protrusions, and the through holes are square.

[0015] The adaptive coating assembly further includes a clamping block, which passes through the two through holes and has a shape adapted to the shape of the through holes. One end of the clamping block is connected with a connecting rod, and the two connecting rods are connected with the same scraper at the ends far away from the clamping block. The scraper is placed vertically and its length is not less than the width of the conveying device.

[0016] Several protrusions are provided on the scraping surface of the scraper.

[0017] Preferably, the compaction assembly includes a compaction plate, which has a compaction surface, and the compaction surface is a square surface.

[0018] The compaction assembly further includes a driving member, which is arranged on one side of the conveying device along its own width direction. The driving member has a rotating shaft, and the compaction plate is connected to the rotating shaft. The compaction plate can be detachably arranged from the rotating shaft. In the length direction of the rotating shaft, the compaction plate and the rotating shaft are relatively stationary.

[0019] Preferably, a plurality of blocking protrusions are fixedly provided on the surface of the rotating shaft, and the blocking protrusions are evenly spaced in the length direction of the rotating shaft. A fastening ring is connected to the compaction plate. The longitudinal section of the fastening ring is arc-shaped, and the fastening ring is elastic. The fastening ring is fastened and assembled outside the rotating shaft. In the length direction of the rotating shaft, the fastening ring is located between two adjacent blocking protrusions and is in contact with them.

[0020] Preferably, the compaction assembly includes a plurality of the compaction plates and a plurality of the fastening rings. The compaction plates are evenly spaced in the length direction of the rotating shaft;

[0021] Two compaction assemblies are provided. In the width direction of the conveying device, the two compaction assemblies are symmetrically distributed, and the sum of the dimensions of the two compaction surfaces in the width direction of the conveying device is not less than the width of the conveying device.

[0022] Preferably, the protection assembly includes an upper protection ring, a lower protection ring and a connection structure. The upper protection ring is arranged above the lower protection ring. The upper protection ring is connected to the lower protection ring through the connection structure. The protection assembly encloses a protection space by itself, and the coating head and the scraper are placed in the protection space.

[0023] Preferably, the connection structure includes a plurality of upper connecting rods, a plurality of lower connecting rods, a plurality of magnetic attraction blocks I and a plurality of magnetic attraction blocks II. Each upper connecting rod is connected to the upper protection ring. Each lower connecting rod is connected to the lower protection ring and corresponds to each upper connecting rod. Each magnetic attraction block I is connected to each upper connecting rod. Each magnetic attraction block II is connected to each lower connecting rod and corresponds to each magnetic attraction block I;

[0024] Each of the upper connecting rods and each of the magnetic attraction blocks I are equidistantly distributed in the circumferential direction of the coating head.

[0025] Preferably, the conveying device is provided with a plurality of engaging grooves, and a part of each displacement sensor is engaged in each engaging groove.

[0026] (III) Beneficial effects

[0027] Compared with the prior art, the present invention provides an on-line monitoring and adaptive control device for fabric coating thickness, which has the following beneficial effects:

[0028] 1. The coating in the coating cavity is applied to the fabric surface through a coating head. The coating head is composed of two splicing sub - heads symmetrically arranged in the width direction of the conveying device. The length of the coating cavity can be adjusted by replacing a single splicing sub - head, so as to flexibly adapt to fabrics of different sizes and improve the applicable range. In addition, a flow - regulating block is arranged in the coating cavity, and the top of the flow - regulating block is U - shaped and sleeved on the outer sides of the tops of the two splicing sub - heads, enabling the flow - regulating block to be quickly installed after the two splicing sub - heads are assembled. Through this convenient replacement setting, the flow - regulating block can be flexibly adjusted to flexibly control the coating flow in the coating cavity.

[0029] 2. The coating thickness on the fabric surface is monitored online by displacement sensors, and the coating thickness information is transmitted to the control unit. When the coating is thick, the control unit controls the adjusting cylinder to move the coating head upward. When the coating is thin, the control unit controls the adjusting cylinder to move the coating head downward, realizing adaptive control based on the coating thickness.

[0030] 3. The thicker part of the coating is scraped off by a scraper to improve the thickness uniformity of each area of the coating. In addition, the scraper is placed vertically and its length is not less than the width of the conveying device, including that the scraping surface of the scraper is long enough. At the same time, there are several protrusions on the scraping surface of the scraper, enabling the scraper to process the texture of the coating while achieving the effect of trimming the coating thickness, improving the aesthetics of the coating.

[0031] 4. The purpose of compaction is achieved by applying force to the coating through the compaction surface of the compaction plate, further improving the adhesion of the coating. During this process, two driving parts run synchronously, and each driving part drives multiple compaction plates, expanding the compaction area and reducing the starting frequency of the driving parts. In addition, the compaction plate is detachably assembled with the rotating shaft through a snap - fit ring, and thus the compaction plate can be quickly disassembled for separate cleaning. Also, the stable position of the compaction plate in the compaction area is ensured by the fitting and limiting setting between the snap - fit ring and the blocking protrusions.

[0032] 5. The coating head and the scraper are protected by a protective space, and the scraper is also prevented from hurting the operator. Specifically, the protective space is enclosed by an upper protective ring, a lower protective ring and a connecting structure. In the connecting structure, the connection between the upper connecting rods and the lower connecting rods is realized through the adsorption of each magnetic - attracting block one and each magnetic - attracting block two, and then the connection between the upper protective ring and the lower protective ring is realized. With this setting, not only the stable existence of the protective space can be achieved, but also there are several relatively large observation ports in the circumferential direction of the protective space, facilitating the operator to clearly observe the working conditions of the coating head and the scraper from all directions. The operator can also perform operations such as removing the coating on the surface of the scraper through these observation ports. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 FIG. is a schematic diagram of the overall structure of an on - line monitoring and adaptive control device for fabric coating thickness proposed by the present invention;

[0034] Figure 2 Schematic diagram of the conveying device and the displacement sensor structure in a device for online monitoring and adaptive control of fabric coating thickness proposed by the present invention;

[0035] Figure 3 Schematic diagram of the compaction plate and the blocking protrusion structure in a device for online monitoring and adaptive control of fabric coating thickness proposed by the present invention;

[0036] Figure 4 Schematic diagram of the driving part and the fastening ring structure in a device for online monitoring and adaptive control of fabric coating thickness proposed by the present invention;

[0037] Figure 5 Schematic diagram of the splicing sub-head and the control unit structure in a device for online monitoring and adaptive control of fabric coating thickness proposed by the present invention;

[0038] Figure 6 Schematic diagram of the upper protective ring and the control unit structure in a device for online monitoring and adaptive control of fabric coating thickness proposed by the present invention;

[0039] Figure 7 Schematic diagram of the splicing sub-head and the magnetic attraction block two structure in a device for online monitoring and adaptive control of fabric coating thickness proposed by the present invention;

[0040] Figure 8 Schematic diagram of the connecting protrusion and the connecting rod structure in a device for online monitoring and adaptive control of fabric coating thickness proposed by the present invention;

[0041] Figure 9 Schematic diagram of the flow rate regulating block and the splicing sub-head structure in a device for online monitoring and adaptive control of fabric coating thickness proposed by the present invention.

[0042] The reference numerals in the figure are: 101, conveying device; 102, displacement sensor; 200, adaptive coating assembly; 201, coating head; 202, splicing sub-head; 203, coating cavity; 204, connecting protrusion; 205, bolt structure; 206, flow rate regulating block; 207, regulating cylinder; 208, control unit; 209, clamping block; 2010, connecting rod; 2012, scraper; 300, protective assembly; 301, upper protective ring; 302, lower protective ring; 303, connecting structure; 3031, upper connecting rod; 3032, lower connecting rod; 3033, magnetic attraction block one; 3034, magnetic attraction block two; 400, compaction assembly; 401, driving part; 402, rotating shaft; 403, compaction plate; 4021, blocking protrusion; 4022, fastening ring. Detailed implementation manners

[0043] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention;

[0044] Referring to Figures 1 to 9 As shown, an on-line monitoring and adaptive control device for fabric coating thickness includes a conveying device 101. Above the conveying device 101, a plurality of displacement sensors 102 are provided. The displacement sensors 102 are spaced apart along the length direction of the conveying device 101. Above the conveying device 101, an adaptive coating assembly 200 is provided. A protective assembly 300 is provided outside the adaptive coating assembly 200. A compaction assembly 400 is provided on one side of the adaptive coating assembly 200.

[0045] Furthermore, the adaptive coating assembly 200 includes a coating head 201. The coating head 201 is composed of two splicing sub-heads 202 symmetrically arranged in the width direction of the conveying device 101. The two splicing sub-heads 202 enclose to form a coating cavity 203. The two splicing sub-heads 202 are both U-shaped;

[0046] On the outer walls of the splicing sub-heads 202, connection protrusions 204 are provided. The two connection protrusions 204 are threadedly assembled through a bolt structure 205;

[0047] A flow regulating block 206 is provided in the coating cavity 203. The top end of the flow regulating block 206 is U-shaped and is sleeved and assembled inside the top ends of the two splicing sub-heads 202.

[0048] It should be noted that the support of the structure is a conventional setting. For example, the support of the displacement sensor 102 should be known to those skilled in the art even if not explicitly mentioned.

[0049] Furthermore, the adaptive coating assembly 200 further includes an adjusting cylinder 207 and a control unit 208. The adjusting cylinder 207 and each displacement sensor 102 are electrically connected to the control unit 208. The adjusting cylinder 207 is connected to any one of the splicing sub-heads 202. The control unit 208 controls the adjusting cylinder 207 to drive the splicing sub-head 202 to move adaptively in the vertical direction through the transmission information of each displacement sensor 102.

[0050] Furthermore, through holes are provided on the connection protrusions 204. The through holes are square;

[0051] The adaptive coating assembly 200 further includes a clamping block 209. The clamping block 209 passes through the two through holes and its shape is adapted to the shape of the through holes. One end of the clamping block 209 is connected with a connecting rod 2010. The two connecting rods 2010 are connected with the same scraping blade 2012 at the ends far away from the clamping block 209. The scraping blade 2012 is placed vertically and its length is not less than the width of the conveying device 101.

[0052] There are several protrusions on the scraping surface of the scraping blade 2012.

[0053] Further, the compaction assembly 400 includes a compaction plate 403. The compaction plate 403 has a compaction surface which is a square surface.

[0054] The compaction assembly 400 further includes a driving member 401. The driving member 401 is arranged on one side of the conveying device 101 along its own width direction. The driving member 401 has a rotating shaft 402. The compaction plate 403 is connected to the rotating shaft 402. The compaction plate 403 can be separated from the rotating shaft 402. In the length direction of the rotating shaft 402, the compaction plate 403 is relatively stationary with respect to the rotating shaft 402.

[0055] Further, a plurality of blocking protrusions 4021 are fixedly arranged on the surface of the rotating shaft 402. The blocking protrusions 4021 are evenly spaced in the length direction of the rotating shaft 402. A buckling ring 4022 is connected to the compaction plate 403. The longitudinal section of the buckling ring 4022 is arc-shaped. The buckling ring 4022 has elasticity. The buckling ring 4022 is buckled and assembled outside the rotating shaft 402. In the length direction of the rotating shaft 402, the buckling ring 4022 is located between two adjacent blocking protrusions 4021 and is in contact with them.

[0056] Further, the compaction assembly 400 includes a plurality of compaction plates 403 and a plurality of buckling rings 4022. The compaction plates 403 are evenly spaced in the length direction of the rotating shaft 402.

[0057] Two compaction assemblies 400 are provided. In the width direction of the conveying device 101, the two compaction assemblies 400 are symmetrically distributed. The sum of the dimensions of the two compaction surfaces in the width direction of the conveying device 101 is not less than the width of the conveying device 101.

[0058] Further, the protection assembly 300 includes an upper protection ring 301, a lower protection ring 302 and a connection structure 303. The upper protection ring 301 is arranged above the lower protection ring 302. The upper protection ring 301 is connected to the lower protection ring 302 through the connection structure 303. The protection assembly 300 encloses a protection space by itself. The coating head 201 and the scraping blade 2012 are placed in the protection space.

[0059] Further, the connection structure 303 includes a plurality of upper connection rods 3031, a plurality of lower connection rods 3032, a plurality of first magnetic attraction blocks 3033 and a plurality of second magnetic attraction blocks 3034. Each upper connection rod 3031 is connected to the upper protective ring 301, each lower connection rod 3032 is connected to the lower protective ring 302 and corresponds to each upper connection rod 3031. Each first magnetic attraction block 3033 is connected to each upper connection rod 3031, and each second magnetic attraction block 3034 is connected to each lower connection rod 3032 and corresponds to each first magnetic attraction block 3033;

[0060] Each upper connection rod 3031 and each first magnetic attraction block 3033 are equidistantly distributed in the circumferential direction of the coating head 201.

[0061] Further, a plurality of engaging grooves are provided on the lower protective ring 302, and a part of each displacement sensor 102 is engaged in each engaging groove.

[0062] The working process and principle of the above embodiments are as follows:

[0063] The initial state is as follows: The conveying device 101 is not running, the compaction assembly 400 is stationary above the conveying device 101, and the coating head 201 and the scraper 2012 are stably placed in the protective space.

[0064] The working steps are as follows:

[0065] The conveying device 101 conveys the fabric. The existing paint storage device conveys the paint to the coating cavity 203 of the coating head 201 through the existing feeding pipe. The conveying device 101, the paint storage device and the feeding pipe are all existing and can be adjusted according to the actual situation;

[0066] The coating head 201 coats the paint in the coating cavity 203 on the surface of the fabric. Among them, the coating head 201 is composed of two splicing sub-heads 202 symmetrically arranged in the width direction of the conveying device 101. The length of the coating cavity 203 can be adjusted by replacing a single splicing sub-head 202, so as to flexibly adapt to fabrics of different sizes. In addition, a flow regulating block 206 is provided in the coating cavity 203, and the top of the flow regulating block 206 is U-shaped and sleeved on the outer sides of the tops of the two splicing sub-heads 202, so that the flow regulating block 206 can be quickly installed after the two splicing sub-heads 202 are assembled. Through this convenient replacement setting, the flow regulating block 206 can be flexibly adjusted to flexibly control the paint flow in the coating cavity 203;

[0067] During the coating process, each displacement sensor 102 monitors the coating thickness on the fabric surface online and transmits the coating thickness information to the control unit 208. When the coating is thick, the control unit 208 controls the adjustment cylinder 207 to move the coating head 201 upward. When the coating is thin, the control unit 208 controls the adjustment cylinder 207 to move the coating head 201 downward, realizing adaptive control based on the coating thickness. The control unit 208 can adopt an existing controller;

[0068] During the coating process, while the displacement sensor 102 is working, the scraper 2012 also performs a scraping operation. The thicker part of the coating is scraped off by the scraper 2012 to improve the thickness uniformity of each area of the coating. In addition, the scraper 2012 is placed vertically and its length is not less than the width of the conveying device 101. The scraping surface including the scraper 2012 is long enough. At the same time, there are several protrusions on the scraping surface of the scraper 2012, so that the scraper 2012 can process the texture of the coating while achieving the effect of trimming the coating thickness, improving the aesthetics of the coating. It should also be noted that the support of the scraper 2012 indirectly relies on the connecting protrusion 204. That is, the connecting protrusion 204 not only helps to fix the two spliced sub - heads 202, but also helps to fix the scraper 2012. Specifically, a square perforation is provided on the connecting protrusion 204, and the positioning and assembly of the scraper 2012 are realized through the snap - fit assembly of the square block 209 and the square perforation, and the rotation of the scraper 2012 can also be avoided;

[0069] While the scraper 2012 is working, the compaction assembly 400 synchronously performs a compaction operation. Specifically, the driving member 401 of the driving motor can drive the compaction plate 403 to rotate through its own rotating shaft 402, and the compaction surface of the compaction plate 403 applies force to the coating to achieve the compaction purpose, further improving the adhesion of the coating. During this process, the two driving members 401 run synchronously, and each driving member 401 drives multiple compaction plates 403, expanding the compaction area and reducing the starting frequency of the driving member 401. In addition, the compaction plate 403 is snap - fitted with the rotating shaft 402 through the snap - fit ring 4022, so that the compaction plate 403 can be quickly disassembled for separate cleaning. Moreover, the stable position of the compaction plate 403 in the compaction area is ensured by the fitting and limiting setting of the snap - fit ring 4022 and the blocking protrusion 4021;

[0070] During the operation of the coating head 201 and the squeegee 2012, both are in a protective space, which realizes the protection of both and also prevents the squeegee 2012 from hurting the operator. Specifically, the protective space is enclosed by an upper protective ring 301, a lower protective ring 302 and a connecting structure 303. In the connecting structure 303, the connection of each upper connecting rod 3031 and each lower connecting rod 3032 is realized through the adsorption of each magnetic block one 3033 and each magnetic block two 3034, and then the connection of the upper protective ring 301 and the lower protective ring 302 is realized. With this setting, not only can the stable existence of the protective space be realized, but also there are several relatively large observation ports in the circumferential direction of the protective space, so that the operator can clearly observe the working conditions of the coating head 201 and the squeegee 2012 from all directions. The operator can also perform operations such as removing the coating on the surface of the squeegee 2012 through these observation ports. In addition, the lower protective ring 302 has magnetism, so that the protective component 300 can adsorb the dropped small parts while realizing the protection effect, which is convenient for collection and sorting. At the same time, because there are a plurality of engaging grooves provided on the lower protective ring 302, the protective component 300 can also be used to stably support each displacement sensor 102.

[0071] It should be noted that the term "comprising" or any other variant thereof is intended to cover a non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0072] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An on-line monitoring and adaptive control device for fabric coating thickness, characterized in that: It includes a conveying device (101), above which there are multiple displacement sensors (102). Each of the displacement sensors (102) is distributed at intervals along the length direction of the conveying device (101). Above the conveying device (101), there is an adaptive coating assembly (200). Outside the adaptive coating assembly (200), there is a protection assembly (300). On one side of the adaptive coating assembly (200), there is a compaction assembly (400).

2. The on-line monitoring and adaptive control device for fabric coating thickness according to claim 1, wherein: The adaptive coating assembly (200) includes a coating head (201), which is composed of two splicing sub - heads (202) symmetrically arranged in the width direction of the conveying device (101). The two splicing sub - heads (202) enclose to form a coating cavity (203), and both of the splicing sub - heads (202) are U - shaped; On the outer walls of the splicing sub - heads (202), there are connecting protrusions (204), and the two connecting protrusions (204) are thread - assembled through a bolt structure (205); Inside the coating cavity (203), there is a flow - regulating baffle (206). The top of the flow - regulating baffle (206) is U - shaped and is sleeved and assembled inside the tops of the two splicing sub - heads (202).

3. The on-line monitoring and adaptive control device for fabric coating thickness according to claim 2, wherein: The adaptive coating assembly (200) further includes an adjusting cylinder (207) and a control unit (208). The adjusting cylinder (207) and each displacement sensor (102) are electrically connected to the control unit (208). The adjusting cylinder (207) is connected to any one of the splicing sub - heads (202). The control unit (208) controls the adjusting cylinder (207) to drive the splicing sub - head (202) to move adaptively in the vertical direction through the transmission information of each displacement sensor (102).

4. The on-line monitoring and adaptive control device for fabric coating thickness according to claim 3, wherein: Perforations are formed on the connecting protrusions (204), and the perforations are square; The adaptive coating assembly (200) further includes a clamping block (209). The clamping block (209) passes through the two perforations and its shape matches the shape of the perforations. One end of the clamping block (209) is connected to a connecting rod (2010). The two connecting rods (2010) are connected to the same scraper (2012) at the ends away from the clamping block (209). The scraper (2012) is placed vertically and its length is not less than the width of the conveying device (101); There are several protrusions on the scraping surface of the scraper (2012).

5. The on-line monitoring and adaptive control device for fabric coating thickness according to claim 4, characterized in that: The compaction assembly (400) includes a compaction plate (403), and the compaction plate (403) has a compaction surface, and the compaction surface is a square surface; The compaction assembly (400) further includes a driving member (401). The driving member (401) is arranged on one side of the conveying device (101) along its own width direction. The driving member (401) has a rotating shaft (402). The compaction plate (403) is connected to the rotating shaft (402), and the compaction plate (403) can be separated from the rotating shaft (402). In the length direction of the rotating shaft (402), the compaction plate (403) and the rotating shaft (402) are relatively stationary.

6. The on-line monitoring and adaptive control device for fabric coating thickness according to claim 5, wherein: A plurality of blocking protrusions (4021) are fixedly provided on the surface of the rotating shaft (402), and the blocking protrusions (4021) are evenly spaced in the length direction of the rotating shaft (402). A fastening ring (4022) is connected to the compaction plate (403). The longitudinal section of the fastening ring (4022) is arc-shaped. The fastening ring (4022) is elastic. The fastening ring (4022) is fastened and assembled outside the rotating shaft (402). In the length direction of the rotating shaft (402), the fastening ring (4022) is located between two adjacent blocking protrusions (4021) and is in contact with them.

7. An on-line monitoring and adaptive control device for fabric coating thickness according to claim 6, characterized in that: The compaction assembly (400) includes a plurality of the compaction plates (403) and a plurality of the fastening rings (4022). The compaction plates (403) are evenly spaced in the length direction of the rotating shaft (402); Two compaction assemblies (400) are provided. In the width direction of the conveying device (101), the two compaction assemblies (400) are symmetrically distributed, and the sum of the dimensions of the two compaction surfaces in the width direction of the conveying device (101) is not less than the width of the conveying device (101).

8. A device for on-line monitoring and adaptive control of fabric coating thickness according to claim 4, characterized in that: The protection assembly (300) includes an upper protection ring (301), a lower protection ring (302) and a connection structure (303). The upper protection ring (301) is arranged above the lower protection ring (302). The upper protection ring (301) is connected to the lower protection ring (302) through the connection structure (303). The protection assembly (300) encloses a protection space by itself, and the coating head (201) and the scraper (2012) are placed in the protection space.

9. The on-line monitoring and adaptive control device for fabric coating thickness according to claim 8, wherein: The connection structure (303) includes a plurality of upper connection rods (3031), a plurality of lower connection rods (3032), a plurality of magnetic attraction blocks one (3033) and a plurality of magnetic attraction blocks two (3034). Each of the upper connection rods (3031) is connected to the upper protection ring (301). Each of the lower connection rods (3032) is connected to the lower protection ring (302) and corresponds to each of the upper connection rods (3031). Each of the magnetic attraction blocks one (3033) is connected to each of the upper connection rods (3031). Each of the magnetic attraction blocks two (3034) is connected to each of the lower connection rods (3032) and corresponds to each of the magnetic attraction blocks one (3033); Each of the upper connection rods (3031) and each of the magnetic attraction blocks one (3033) are equidistantly distributed in the circumferential direction of the coating head (201).

10. The on-line monitoring and adaptive control device for fabric coating thickness according to claim 9, characterized in that: The conveying device (101) is provided with a plurality of engaging grooves, and a part of each of the displacement sensors (102) is engaged in each of the engaging grooves.

Images