Cloth surface coating glue solution detector

Abstract

The utility model discloses a kind of glue liquid detectors for cloth surface coating, it is related to cloth gluing technical field, including: detection mechanism, contain detection position pole and guide vane, guide vane is fixed in detection position pole terminal;Supporting mechanism is hinged with detection position pole in middle part, and forms lever fulcrum;Pre-set detection gap is kept between guide vane and scraper;When cloth and scraper relative motion, excess glue liquid enters gap and generates hydraulic thrust to guide vane, drives detection position pole to rotate around fulcrum, detection position pole trigger end presses microswitch, and glue liquid supply circuit is cut off.The present application is hinged with detection position pole and guide vane to form lever structure, so that excess glue liquid promotes guide vane to rotate and triggers microswitch to cut off glue liquid supply circuit, realize the local mechanical type monitoring and control of coating area glue liquid accumulation state, to achieve the purpose of local real-time monitoring and automatic control to coating area glue liquid accumulation state.

Description

Technical Field

[0001] This utility model relates to the field of fabric coating technology, specifically to an adhesive probe for fabric surface coating. Background Technology

[0002] In the textile printing and dyeing and functional fabric processing field, fabric surface coating is a core process that endows fabrics with waterproof, flame-retardant, antistatic, and reinforced composite properties. Existing production lines generally use roller coating, blade coating, or spray coating methods to uniformly coat the fabric surface with functional adhesives. Typical applications include adhesive layer coating for automotive interior fabrics, requiring precise application of adhesive on the back of the fabric to achieve bonding with a sponge layer; functional coating for medical nonwoven fabrics, requiring the construction of a hydrophilic or hydrophobic functional layer on the substrate surface; and waterproof coating processing for outdoor tent fabrics, where the amount of adhesive applied directly determines the product's protective performance. In these scenarios, a constant gap is maintained between the squeegee and the fabric. The adhesive is delivered to the leading edge of the squeegee via a pressure pump, and the shear force generated by the fabric's movement spreads the adhesive into a film. Operators must manually adjust the squeegee height and pump pressure based on process parameters such as fabric weight, machine speed, and adhesive viscosity. The entire process relies on experience and periodic sampling inspections. In this type of process, the application of guide plates is mostly seen in passive glue scraping devices. They are usually made of thin stainless steel or polytetrafluoroethylene plates and are fixedly installed on the back of the scraper. They only serve to mechanically scrape off excess glue and cannot sense or provide feedback on the glue accumulation status in real time. They also do not have the function of actively cutting off the glue supply, which can easily lead to quality problems such as uneven coating or glue overflow when the fabric speed fluctuates or the glue viscosity changes.

[0003] Current industry monitoring methods for excessive adhesive application have significant limitations. The mainstream methods include manual visual inspection, optical monitoring, and pressure sensor warnings. Manual inspection relies on operators periodically observing adhesive overflow at the edge of the scraper, manually shutting off the pump upon detection of anomalies. This approach suffers from response delays and can easily lead to batch defects. While optical monitoring can measure wet film thickness, the equipment is expensive, and its accuracy is insufficient when the adhesive is atomized or the fabric is shaking. Furthermore, its optical window is easily contaminated by adhesive mist, leading to frequent downtime for maintenance. Pressure sensor solutions use diaphragm pressure transmitters installed in the adhesive pipeline, triggering an alarm when the adhesive backflow pressure exceeds a threshold. However, this technology detects pipeline pressure rather than the actual adhesive amount in the coating area, making it prone to false alarms or missed alarms when the scraper is partially blocked or the fabric absorbs adhesive suddenly. Microswitches, as mature industrial control components, are widely used in textile equipment for applications such as automatic stop after yarn breakage and door safety interlocks. Their working principle involves rapid on / off switching of contacts through mechanical contact, directly controlling the AC contactor coil circuit. However, existing technologies have not organically combined microswitches with mechanical probe structures in the coating area. There is a lack of a simple, cost-controllable monitoring device that can directly convert the physical quantity of adhesive into a switching quantity. This has led to long-term problems in the coating process, such as adhesive waste, fabric contamination, equipment corrosion, and high energy consumption. Especially under high-speed operation or continuous production conditions, the risk of adhesive runaway increases significantly. Therefore, a localized probe solution that can respond in real time and automatically cut off is needed. Utility Model Content

[0004] The purpose of this utility model is to provide an adhesive probe for fabric surface coating. The probe rod and the guide plate are hinged to form a lever structure, so that the excess adhesive pushes the guide plate to rotate and triggers a micro switch to cut off the adhesive supply circuit. This realizes localized mechanical monitoring and control of the adhesive accumulation state in the coating area, so as to solve the technical problem that the existing technology lacks a simple and cost-controllable mechanical probe device, which makes it impossible to perform localized real-time monitoring and automatic control of the adhesive accumulation state in the coating area.

[0005] This utility model embodiment is achieved through the following technical solution: This utility model embodiment provides an adhesive probe for fabric surface coating, comprising: The detection mechanism includes a probe rod and a guide vane, with the guide vane fixed to the end of the probe rod; The support mechanism is hinged to the probe rod in the middle, forming a lever fulcrum; A preset detection gap is maintained between the guide plate and the scraper. When the fabric and the scraper move relative to each other, excess adhesive enters the gap and generates hydraulic thrust on the guide plate, driving the probe rod to rotate around the fulcrum. The trigger end of the probe rod presses the micro switch to cut off the adhesive supply circuit.

[0006] Optionally, the probe rod is provided with a through hole, and the support mechanism is provided with at least one slotted part. A screw is provided in the slotted part, the screw passes through the through hole, and a first nut and a second nut are respectively provided at both ends of the through hole. The inner diameter of the through hole is larger than the outer diameter of the screw.

[0007] Optionally, each slotted part is provided with at least one positioning bolt, which is configured to position the screw within the slotted part by adjusting its contact with the screw.

[0008] Optionally, at least two slotted components are provided, each with a different vertical distance between it and the scraper, in order to adjust the preset detection gap between the guide vane and the scraper.

[0009] Optionally, multiple through holes are provided in the axial direction to adjust the installation height of the detection mechanism.

[0010] Optionally, the probe rod includes a straight rod portion and an arc-shaped portion, with the arc-shaped portion located at the top of the straight rod portion, the guide vane connected to the bottom of the straight rod portion, and the convex surface of the arc-shaped portion facing the contact of the micro switch.

[0011] Optionally, a through hole is provided on the straight rod portion, located on the side of the connection between the straight rod portion and the curved portion.

[0012] Optionally, the probe rod is a hollow structure.

[0013] Optionally, the guide vane is threadedly connected to the probe rod.

[0014] Optionally, the guide vane has a plate-like structure and is arranged parallel to the scraper.

[0015] Compared with the prior art, the embodiments of this utility model have the following advantages and beneficial effects: 1. This utility model embodiment provides a lever fulcrum through a support mechanism. The detection gap between the scraper and the guide plate is the system input, and the microswitch contact is the system output. All components are rigidly connected and precisely positioned, forming a complete closed loop from glue detection to glue supply cutoff. During normal coating, a small amount of glue flows through the preset detection gap. Insufficient thrust causes the guide plate to droop, the microswitch remains closed, and the glue supply circuit is open. When excessive glue accumulates and fills the gap, the guide plate receives sufficient hydraulic thrust, which, after being amplified by the lever, presses the microswitch, instantly cutting off the glue supply. As the glue volume decreases, the gap pressure drops, the lever automatically resets, and the glue supply resumes, forming an automatic cycle of "detection-cutoff-reset." This purely mechanical structure requires no power supply or sensors, offers fast response, and is low-cost, enabling localized real-time monitoring and dynamic balance control of glue accumulation in the coating area.

[0016] 2. This utility model embodiment uses a stepped distribution of slotted components to form a preset gap adjustment system. By utilizing different mounting points, the vertical distance between the guide vane and the scraper can be changed. During operation, there is no need to adjust the probe's own structure or perform complex calibrations; the gap can be switched simply by disassembling and assembling it to the target slotted component. This structure allows the same probe to be compatible with coating processes with different adhesive dosage requirements, significantly improving equipment versatility and debugging efficiency, while ensuring the repeatability accuracy of the adjusted position and the accuracy of the detection threshold.

[0017] In general, this invention forms a lever structure by hingedly connecting the probe rod and the guide plate, which causes excess adhesive to drive the guide plate to rotate and trigger a micro switch to cut off the adhesive supply circuit. This enables localized mechanical monitoring and control of the adhesive accumulation state in the coating area, thereby achieving the purpose of localized real-time monitoring and automatic control of the adhesive accumulation state in the coating area. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A schematic diagram of the adhesive probe for fabric surface coating provided in this embodiment of the utility model; Figure 2 Side view of the mounting structure of the slotted component provided in this embodiment of the utility model; Figure 3 This is a structural diagram showing the positional relationship between the probe rod and the scraper under normal conditions, provided in an embodiment of the present invention. Figure 3 In the diagram, 'a' represents the state of the first preset detection gap. Figure 3 In the diagram, b represents the state of the second preset detection gap. Figure 4 This diagram shows the positional relationship between the probe and the scraper when there is excess adhesive. Figure 5 This is a structural diagram of the arc-shaped part.

[0020] The attached diagram shows the markings and corresponding component names: Detection mechanism, 2-probe rod, 3-guide plate, 4-support mechanism, 5-scraper, 6-through hole, 7-slotted part, 8-screw, 9-first nut, 10-second nut, 11-positioning bolt, 12-straight rod part, 13-arc part, 14-cloth, 15-adhesive liquid, 16-support platform. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0023] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0024] In the description of this utility model, it should be noted that the terms "first", "second", "third", etc. are used only for distinguishing descriptions and should not be construed as indicating or implying relative importance. Example

[0025] In the prior art, the fabric 14 is laid flat on the surface of the support platform 16, which is in the form of a guide roller or conveyor belt. Driven by a motor, the support platform 16 rotates or translates continuously, causing the fabric 14 to pass horizontally at a uniform speed beneath the scraper 5. The scraper 5 is rigidly mounted on the frame, and its blade maintains a constant gap with the surface of the fabric 14. The continuous movement of the fabric 14 and the stationary scraper 5 create a relative shearing motion, ensuring that the adhesive is evenly coated onto the surface of the fabric 14. The conveying speed of the support platform 16 is synchronized with the travel speed of the fabric 14, ensuring that the fabric 14 remains tightly attached to the support platform 16 in the coating area without slipping or wrinkling, thus maintaining the stability of the gap between the scraper 5 and the fabric 14.

[0026] Reference Figure 1 As shown, this utility model embodiment provides an adhesive probe for fabric surface coating, including a detection mechanism 1 and a support mechanism 4. The detection mechanism 1 includes a probe rod 2 and a guide plate 3, with the guide plate 3 fixed to the end of the probe rod 2. The support mechanism 4 is hinged to the probe rod 2 in the middle to form a lever fulcrum. A preset detection gap is maintained between the guide plate 3 and the scraper 5. When the fabric 14 moves relative to the scraper 5, excess adhesive 15 enters the gap and generates a hydraulic thrust on the guide plate 3, driving the probe rod 2 to rotate around the fulcrum. The trigger end of the probe rod 2 presses a micro switch to cut off the adhesive 15 supply circuit.

[0027] Specifically, the probe rod 2 has a guide plate 3 fixed at its front end, extends to the microswitch trigger area at its rear end, and is hinged to the support mechanism 4 in the middle to form a rotation fulcrum. The guide plate 3 is made of corrosion-resistant thin sheet material and is suspended vertically or at an angle downstream of the scraper 5. A preset detection gap is maintained between the guide plate 3 and the cutting edge of the scraper 5, which constitutes a quantitative detection channel for the accumulation of adhesive 15. When the fabric 14 moves relative to the scraper 5, the guide plate 3 is directly immersed in the coated adhesive 15 layer, generating a mechanically sensitive response to changes in the thickness of the adhesive 15.

[0028] The support mechanism 4 is configured to use a rigid support on the frame, employing a screw 8 and a double nut joint structure to rotatably constrain the middle section of the probe rod 2 to a fixed position, forming a stable lever fulcrum. This fulcrum divides the probe rod 2 into a front detection arm and a rear trigger arm, enabling torque transmission and displacement amplification. The support mechanism 4 also serves as the mounting base for the entire probe, ensuring the relative positional accuracy of the guide vane 3 and the scraper 5, and withstanding the dynamic load from the impact of the adhesive liquid 15.

[0029] The microswitch, serving as the output terminal for the execution signal, utilizes an existing structure and is fixedly installed at the end of the rotation path of the trigger arm of the probe rod 2, with its contacts maintaining a micro-gap with the rear end of the probe rod 2. The normally closed contact of the switch is connected in series in the electrical control circuit of the adhesive supply pump 15. When subjected to mechanical pressure, it can disconnect the circuit within milliseconds, directly cutting off the adhesive supply power source. This configuration converts mechanical displacement into an electrical control signal, achieving a hard connection between detection and execution.

[0030] Therefore, in this embodiment of the invention, the support mechanism 4 provides a lever fulcrum, the detection gap between the scraper 5 and the guide plate 3 is the system input, and the micro switch contact is the system output. All components, through rigid connection and precise positioning, form a complete closed loop from detection of the adhesive 15 to adhesive supply cutting.

[0031] When the fabric 14 is uniformly applied under the scraper 5, the adhesive 15 fills the space between the scraper 5 and the fabric 14. At the same time, a small amount of adhesive 15 flows continuously through the preset detection gap in a thin layer. At this time, the thrust of the liquid flow on the guide plate 3 is insufficient to overcome the lever resistance, and the guide plate 3 maintains a suspended monitoring posture (refer to...). Figure 3 As shown), the microswitch contacts are normally closed, and the glue supply circuit is open. When the glue supply pressure suddenly changes, the glue absorption rate of the fabric 14 decreases, or the scraper 5 is partially blocked, causing the glue liquid 15 in the coating area to begin to accumulate, the excess glue liquid 15 will first rush in and fill the preset detection gap, generating a hydraulic thrust on the guide plate 3 sufficient to overcome the lever resistance. This thrust is amplified by the probe rod 2 and drives the trigger arm to swing down quickly to press the microswitch (see reference). Figure 4As shown), the contact momentarily disconnects the glue supply circuit, and the glue pump immediately stops working. As the glue supply is interrupted, the amount of glue between the scraper 5 and the cloth 14 gradually decreases, and the liquid level and pressure in the preset detection gap drop accordingly. The thrust on the guide plate 3 weakens to below the threshold, and the lever system automatically swings back to reset under its own weight or the action of the reset elastic element. The micro switch contact is released and closed again, and the glue supply circuit is restored to conduction. In this way, an automatic cycle of "glue 15 accumulation → gap filling → trigger cut-off → glue amount reduction → pressure drop → reset glue supply" is formed. By using the physical threshold of the preset detection gap, the amount of glue 15 accumulation is converted into a mechanical switch action, realizing dynamic balance control of glue 15 accumulation in the coating area. This device uses a purely mechanical lever principle to achieve on-site sensing and direct control of the state of the adhesive liquid 15 in the coating area. It requires no external power supply, sensor or controller, completely eliminating the risk of signal transmission delay and misjudgment. It features a simple structure, extremely low cost and extremely fast response. It effectively solves the problem that existing technologies cannot perform local real-time monitoring and automatic control of adhesive liquid 15 accumulation in the coating area, avoids adhesive liquid 15 waste, cloth 14 contamination and equipment corrosion, and significantly improves the stability and intelligence level of the coating process.

[0032] For example, in conjunction with reference Figure 1 , Figure 2 and Figure 3 As shown, the probe rod 2 has a through hole 6, and the support mechanism 4 has at least one slotted component 7. A screw 8 is installed inside the slotted component 7, and the screw 8 passes through the through hole 6. A first nut 9 and a second nut 10 are respectively installed at both ends of the screw 8 in the through hole 6. The inner diameter of the through hole 6 is larger than the outer diameter of the screw 8. Specifically, in this embodiment of the invention, the screw 8 serves as a hinge shaft, the through hole 6 serves as a rotating sleeve, and the double nuts serve as axial limiting, thereby rotatably constraining the probe rod 2 to the support mechanism 4 and constructing a lever fulcrum.

[0033] More specifically, the clearance fit between the through hole 6 and the screw 8 allows the probe rod 2 to rotate freely around the fulcrum. When the guide vane 3 is pushed by the adhesive 15, the probe rod 2 can rotate sensitively without jamming. The double-nut clamping structure not only restricts the movement of the probe rod 2 but also allows for quick disassembly and adjustment of the fulcrum position. This hinged structure converts the micro-thrust of the adhesive 15 into lever angular displacement, realizing the precise transmission and amplification of mechanical signals. It features a simple structure, flexible rotation, fast response, and maintenance-free operation, providing stable and reliable fulcrum support for lever-type probes.

[0034] In a preferred embodiment of this utility model, at least one positioning bolt 11 is provided on a single slotted part 7. The positioning bolt 11 is configured to abut against the screw 8 by adjustment, thereby positioning the screw 8 within the slotted part 7. This structure constrains the degree of freedom of the screw 8 through the frictional force generated by the bolt tightening, preventing it from rotating or axially slipping under the impact of the adhesive 15 and mechanical vibration.

[0035] The positioning bolt 11 forms a detachable radial locking structure. By adjusting the bolt's screw-in depth, the screw 8 can be quickly locked and released, facilitating fulcrum position adjustment and maintenance / replacement. This locking method maintains the hinge rotation accuracy while improving fulcrum stability, preventing detection gap shift or trigger failure due to screw 8 loosening during long-term use. This ensures the probe maintains calibration accuracy under continuous vibration conditions and extends the maintenance-free cycle.

[0036] In this embodiment of the invention, at least two slotted components 7 are provided, and the vertical distance between each slotted component 7 and the scraper 5 is different, so as to adjust the preset detection gap between the guide vane 3 and the scraper 5. This structure enables the preset detection gap between the guide vane 3 and the scraper 5 to have multiple adjustable levels. By switching the installation position of the probe rod 2 in different slotted components 7, the distance between the guide vane 3 and the scraper 5 can be directly changed, thereby achieving rapid adjustment of the detection sensitivity.

[0037] For example, refer to Figure 2 As shown, there are two slotted parts 7. When the screw 8 is installed in the slotted part 7 on the left, the preset detection gap between the guide vane and the scraper 5 is [value missing]. Figure 3 As shown in d1, when the screw 8 is installed in the slot 7 on the right side, the preset detection gap between the guide vane and the scraper 5 is [value missing]. Figure 3 As shown, d2 > d1. In actual operation, the slotted part 7 can be selected at a suitable position according to actual needs. In other embodiments, it is not limited to setting two slotted parts 7; three, four, five, etc., can also be set, and there is no limitation here. Generally speaking, the higher the viscosity of the adhesive 15, the larger the preset detection gap.

[0038] Of course, multiple through holes 6 can also be provided axially to adjust the installation height of the detection mechanism 1. In this way, by changing the hinge point position of the probe rod 2 and the screw 8, the vertical distance between the guide vane 3 at the front end of the probe rod 2 and the scraper 5 can be adjusted, thereby realizing multi-level adjustment of the installation height of the detection mechanism 1 and improving the flexibility of the device.

[0039] Furthermore, referring to Figure 5 As shown, the probe rod 2 includes a straight rod portion 12 and an arc-shaped portion 13. The arc-shaped portion 13 is located at the top of the straight rod portion 12, and the guide vane 3 is connected to the bottom of the straight rod portion 12. The convex surface of the arc-shaped portion 13 faces the contact of the micro switch. This structure designs the trigger end of the probe rod 2 as an outwardly convex arc surface, replacing the conventional flat end or pointed end, so that when the lever rotates, the contact form between the probe rod 2 and the micro switch changes from point contact to line contact or partial surface contact.

[0040] The arc-shaped convex surface of this embodiment provides a progressive contact process when the microswitch is pressed. As the rotation angle of the probe rod 2 increases, the contact area between the convex surface and the contact point expands synchronously, resulting in a more uniform distribution of trigger pressure. This avoids wear or deformation of the switch contacts caused by single-point impact, extending the service life of the microswitch. Simultaneously, the arc-shaped structure can adaptively fine-tune the contact position, compensating for positional shifts at the trigger end of the probe rod 2 caused by assembly errors, loose fulcrums, or long-term use. This ensures that each trigger effectively presses the central area of ​​the switch action spring, improving trigger reliability and repeatability. Furthermore, the smooth surface of the arc-shaped portion 13 reduces mechanical impact noise at the moment of pressing, lowering the equipment's operating noise level.

[0041] Preferably, the through hole 6 is provided on the straight rod portion 12, located beside the connection between the straight rod portion 12 and the arc-shaped portion 13. Placing the through hole 6 beside the connection rather than orthogonally to it maintains the lever's mechanical properties while avoiding opening a hole in a stress concentration area. This prevents the probe rod 2 from developing cracks or fatigue fracture at the connection under the impact load and alternating stress of the adhesive 15, thus improving structural reliability. The side-mounted layout also facilitates observation of alignment during machining drilling and assembly, reducing manufacturing precision requirements.

[0042] As a preferred embodiment of this utility model, the probe rod 2 adopts a hollow structure to reduce rotational inertia. The guide plate 3 is fixed to the bottom of the probe rod 2 by a threaded connection for easy quick replacement. The guide plate 3 is a plate-shaped structure arranged parallel to the scraper 5, which can maximize the detection area, making the detection mechanism 1 lightweight and modular, and improving response sensitivity and maintenance convenience.

[0043] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model. It should be noted that the structures or components illustrated in the accompanying drawings are not necessarily drawn to scale, and descriptions of well-known components, processing techniques, and processes are omitted to avoid unnecessarily limiting the utility model.

Claims

1. A probe for adhesive coating on fabric surfaces, characterized in that, include: The detection mechanism (1) includes a probe rod (2) and a guide plate (3), wherein the guide plate (3) is fixed to the end of the probe rod (2); The support mechanism (4) is hinged to the probe rod (2) in the middle to form a lever fulcrum; The guide plate (3) and the scraper (5) maintain a preset detection gap; when the fabric (14) and the scraper (5) move relative to each other, excess adhesive enters the gap and generates hydraulic thrust on the guide plate (3), driving the probe rod (2) to rotate around the fulcrum. The trigger end of the probe rod (2) presses the micro switch to cut off the adhesive supply circuit.

2. The adhesive probe for fabric surface coating according to claim 1, characterized in that, The probe rod (2) is provided with a through hole (6), and the support mechanism (4) is provided with at least one slotted part (7). A screw (8) is provided in the slotted part (7). The screw (8) passes through the through hole (6). A first nut (9) and a second nut (10) are respectively provided at both ends of the through hole (6). The inner diameter of the through hole (6) is larger than the outer diameter of the screw (8).

3. The adhesive probe for fabric surface coating according to claim 2, characterized in that, Each slotted part (7) is provided with at least one positioning bolt (11), which is configured to position the screw (8) in the slotted part (7) by adjusting its contact with the screw (8).

4. The adhesive probe for fabric surface coating according to claim 2, characterized in that, At least two slotted parts (7) are provided, and the vertical distance between each slotted part (7) and the scraper (5) is different, so as to adjust the preset detection gap between the guide plate and the scraper (5).

5. A fabric surface coating adhesive probe according to claim 2, characterized in that, Multiple through holes (6) are provided in the axial direction to adjust the installation height of the detection mechanism (1).

6. A fabric surface coating adhesive probe according to claim 2, characterized in that, The probe rod (2) includes a straight rod part (12) and an arc-shaped part (13). The arc-shaped part (13) is located at the top of the straight rod part (12). The guide plate (3) is connected to the bottom of the straight rod part (12). The convex surface of the arc-shaped part (13) is set to face the contact of the micro switch.

7. A fabric surface coating adhesive probe according to claim 6, characterized in that, The through hole (6) is provided on the straight rod part (12), and the through hole (6) is located on the side of the connection between the straight rod part (12) and the arc-shaped part (13).

8. A fabric surface coating adhesive probe according to claim 1, characterized in that, The probe rod (2) has a hollow structure.

9. A fabric surface coating adhesive probe according to claim 7, characterized in that, The guide plate (3) is threadedly connected to the probe rod (2).

10. A fabric surface coating adhesive probe according to claim 1, characterized in that, The guide plate (3) has a plate-like structure and is arranged parallel to the scraper (5).

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