Glue proportion refinement monitoring device

Abstract

The utility model discloses a glue ratio fine monitoring device, including cylinder push member, first piston type push rod, second piston type push rod and magnetic scale sensor assembly, second piston type push rod middle part and first piston type push rod middle part all are established on cylinder push member, can push its synchronous front -and -back movement under the control of cylinder push member, magnetic scale sensor assembly includes magnetic scale and reading head, the back solid of magnetic scale is established in cylinder push member, and reading head solid is established in first piston type push rod and second piston type push rod rear end, and with magnetic scale is pasted, and opposite magnetic scale can move forward and backward. Effect: this application uses a cylinder push member control first piston type push rod and second piston type push rod synchronous movement, can save cost greatly, uses stable and reliable, adopts cylinder push member plus magnetic scale sensor assembly instead of traditional double screw valve, and the whole structure is simpler, and the use cost is lower and the maintenance difficulty is lower, and still can carry out fine monitoring to glue ratio.

Description

Technical Field

[0001] This utility model relates to the field of dispensing equipment technology, and in particular to a device for fine monitoring of adhesive ratio. Background Technology

[0002] Dispensing is a process, also known as gluing, coating, potting, or dripping, in which electronic adhesives, oils, or other liquids are applied, potted, or dripped onto a product to achieve functions such as adhesion, potting, insulation, fixation, and surface smoothing.

[0003] Currently, there are four common dispensing methods: the first is manual dispensing, where a manual dispensing machine is used to dispense adhesive onto electronic products; the second is manual glue gun dispensing; the third is semi-automatic dispensing machine dispensing; and the fourth is fully automatic dispensing machine dispensing. Fully automatic dispensing machines use air pressure to push out the adhesive within a set time. The instrument controls the dispensing time each time to ensure that the amount dispensed each time is the same. By adjusting the air pressure, time, and selecting the appropriate nozzle, the amount dispensed each time can be easily changed.

[0004] The existing two-component dispensing equipment is basically similar in structure to the invention patent "AB glue anti-drip dispensing equipment" with patent number "202111674871.8" filed earlier by the patent applicant. Its main working principle is to use a twin screw valve to push the two glues to a Y-shaped mixing tube to achieve glue mixing and drive the mixed glue to be extruded to the product surface to achieve dispensing.

[0005] While the twin-screw valves used above offer high precision in controlling the amount of adhesive extruded, their use also has the following drawbacks:

[0006] 1. High initial purchase cost;

[0007] The core components of a twin-screw valve (such as a precision screw, wear-resistant bushing, and servo drive system) require extremely high machining precision (usually micron-level tolerances) and need to be equipped with dedicated temperature and pressure monitoring modules to coordinate the control of the adhesive state. The overall equipment cost is much higher than that of simple adhesive control components such as single-screw valves or diaphragm valves, which is not cost-friendly for small and medium batch production scenarios.

[0008] 2. High maintenance difficulty and cost;

[0009] The screw and bushing are the core moving parts. When they are in contact with high-viscosity adhesives (especially those containing particles and fillers) for a long time, they are prone to wear, adhesion or blockage. They need to be disassembled and cleaned regularly and the clearance needs to be calibrated. The disassembly process requires professional tools and technicians, and the maintenance cycle is long (usually requiring downtime for several hours to several days).

[0010] Seals (such as shaft seals and end cap seals) are prone to failure due to adhesive curing and high-temperature aging, requiring frequent replacement of specialized seals. Furthermore, some imported seals have long procurement cycles and high costs.

[0011] If the adhesive contains corrosive components (such as acidic adhesives or solvent-based adhesives), special materials (such as Hastelloy or PTFE coating) must be used to customize the screw and valve body, further increasing maintenance costs.

[0012] 3. Limited adaptability to adhesive properties;

[0013] For adhesives with extremely high viscosity (such as hot melt adhesives and silicone) or containing a high proportion of fillers (such as metal powders and ceramic particles), the adhesive has poor flowability and is prone to "stagnation" in the screw groove, resulting in fluctuations in extrusion volume. For low-viscosity adhesives (such as epoxy adhesives and UV adhesives), the mating clearance between the twin screw and the bushing (usually 0.001-0.05mm) is difficult to completely seal, making it easy for low-viscosity / volatile adhesives to leak and lose precision control. During the high-speed meshing process of the twin screw, local high temperatures are generated due to mechanical friction, making heat-sensitive adhesives easy to degrade and cure.

[0014] 4. There is a "lag" in start-up, shutdown and proportional adjustment, and high-precision control is difficult for small flow rates of adhesive.

[0015] 5. The system has high compatibility and debugging complexity;

[0016] This is mainly reflected in the need for complex auxiliary systems to work together, the long debugging cycle, and the high requirements for operators.

[0017] In response, the inventor of this patent, drawing on experience, deeply considered the problems encountered in his work, reviewed a large amount of scientific research data and literature, and gradually conceived and designed this application through a novelty search to solve the relevant technical problems. Utility Model Content

[0018] This invention aims to at least partially solve one of the technical problems in related technologies. Therefore, the purpose of this invention is to provide a device for precise monitoring of adhesive ratio.

[0019] To achieve one of the above objectives, the glue ratio fine monitoring device according to an embodiment of the present invention includes:

[0020] Cylinder-driven components;

[0021] A first piston-type push rod and a second piston-type push rod; the second piston-type push rod is arranged parallel to the first piston-type push rod in the front-back direction, and its middle part is fixedly fixed on the cylinder pushing component so that it can be pushed to move synchronously back and forth under the control of the cylinder pushing component;

[0022] A magnetic scale sensor assembly; the magnetic scale sensor assembly includes a magnetic scale and a reading head; the magnetic scale is fixedly mounted rearward at the rear of the cylinder pushing member; the reading head is fixedly mounted at the rear end of the first piston-type push rod and the second piston-type push rod, and is in contact with the magnetic scale, and can move back and forth relative to the magnetic scale.

[0023] In addition, the glue ratio fine monitoring device according to the above embodiments of this utility model may also have the following additional technical features:

[0024] According to one embodiment of the present invention, the magnetic scale includes a first magnetic scale and a second magnetic scale; the reading head includes a first reading head and a second reading head;

[0025] The first magnetic scale and the second magnetic scale are fixedly mounted parallel to each other at the rear of the cylinder pushing component; the first reading head and the second reading head are respectively fixedly mounted at the rear end of the first piston-type push rod and the rear end of the second piston-type push rod, and are respectively in contact with the first magnetic scale and the second magnetic scale, and can move back and forth relative to the first magnetic scale and the second magnetic scale.

[0026] According to one embodiment of the present invention, a protective sleeve is also included;

[0027] The protective sleeve is fixed rearward at the rear of the cylinder pushing component; the first magnetic scale and the second magnetic scale are both fixed rearward on the inner wall of the protective sleeve.

[0028] According to one embodiment of the present invention, the inner wall of the protective sleeve is provided with a first groove and a second groove along the front-rear direction;

[0029] The first magnetic scale is fixed in the first slot; the second magnetic scale is fixed in the second slot.

[0030] According to one embodiment of the present invention, it further includes a first sliding guide and a second sliding guide;

[0031] Both the first sliding guide and the second sliding guide are fixedly mounted on the inner wall of the protective sleeve in the front-back direction; the rear end of the first piston-type push rod is fixedly mounted on the first sliding guide in a front-back sliding manner; the rear end of the second piston-type push rod is fixedly mounted on the second sliding guide in a front-back sliding manner.

[0032] According to one embodiment of the present invention, the first sliding guide includes a first slide rail fixedly disposed on the inner wall of the protective sleeve in the front-back direction and a first slider disposed on the first slide rail that can slide back and forth; the second sliding guide includes a second slide rail fixedly disposed on the inner wall of the protective sleeve in the front-back direction and a second slider disposed on the second slide rail that can slide back and forth.

[0033] The rear end of the first piston-type push rod is connected to the first slider; the rear end of the second piston-type push rod is connected to the second slider.

[0034] According to one embodiment of the present invention, the protective sleeve is formed into a hollow cuboid structure and is composed of a left side plate, a right side plate, a top plate and a bottom plate that are independently detachable and arranged along the front-back direction.

[0035] According to one embodiment of the present invention, the cylinder pushing component includes a cylinder barrel and a pneumatic piston that can move back and forth, is engaged in the cylinder barrel, and is sleeved on the middle of the first piston-type push rod and the middle of the second piston-type push rod.

[0036] The cylinder barrel has a front through hole A and a front through hole B at the front end, through which the front ends of the first piston push rod and the second piston push rod pass respectively; the cylinder barrel has a rear through hole A and a rear through hole B at the rear end, through which the rear ends of the first piston push rod and the second piston push rod pass respectively.

[0037] The outer wall of the rear end of the cylinder has a gas inlet / outlet hole A that connects to its inner rear part and is located behind the pneumatic piston; the outer wall of the front end of the cylinder has a gas inlet / outlet hole B that connects to its inner front part and is located in front of the pneumatic piston.

[0038] According to one embodiment of the present invention, the pneumatic piston has a first movable chamber and a second movable chamber formed inside along the front-rear direction;

[0039] The first piston-type push rod has a ring that can move back and forth and is locked to the first limiting outer edge of the first movable cavity. The front and rear width of the first limiting outer edge is smaller than the front and rear length of the first movable cavity. The first movable cavity has a first telescopic spring that is locked in a compressed state at the rear. The front end of the first telescopic spring abuts against the rear end face of the first limiting outer edge, and the rear end abuts against the rear inner wall of the first movable cavity.

[0040] The second piston-type push rod has a ring that can move back and forth and is locked to the second limiting outer edge of the second movable cavity. The front and rear width of the second limiting outer edge is smaller than the front and rear length of the second movable cavity. The rear part of the second movable cavity is compressed and a second telescopic spring is locked outside the second piston-type push rod. The front end of the second telescopic spring abuts against the rear end face of the second limiting outer edge, and the rear end abuts against the rear inner wall of the second movable cavity.

[0041] According to one embodiment of the present invention, a front sealing ring A is detachably fixed to the inner wall of the front through hole A, and a front sealing ring B is detachably fixed to the inner wall of the front through hole B; a rear sealing ring A is detachably fixed to the inner wall of the rear through hole A, and a rear sealing ring B is detachably fixed to the inner wall of the rear through hole B.

[0042] The beneficial effects of this utility model are:

[0043] Firstly, the glue ratio fine monitoring device provided in this application, in its specific implementation, uses one of the aforementioned cylinder pushing components to control the first piston push rod and the second piston push rod to move forward synchronously. Compared with the traditional two-component dispensing device, which uses two cylinder pushing components to control the equivalent first piston push rod and the second piston push rod to move forward synchronously, this application can greatly save costs and avoid the possible asynchrony when the two cylinder pushing components are working, making this application stable and reliable in use.

[0044] Secondly, traditional two-component dispensing devices generally use screw valves to push and deliver the two adhesives to be mixed. This application adopts the cylinder-driven component and the magnetic scale sensor assembly to replace the traditional screw valve. Its overall structure is simple, resulting in low operating costs and low maintenance difficulty. Moreover, its adaptability to adhesive characteristics is obviously not limited, and there is less "lag" in start-up, shutdown, and ratio adjustment. Furthermore, high-precision control is not difficult for small-flow adhesives because the magnetic scale sensor assembly described in this application is a mature existing technology with high measurement accuracy, down to 0.001mm. This allows for precise monitoring of the adhesive ratio. At the same time, the cylinder-driven component described in this application is obviously cylinder-driven, which is simple to drive and does not require complex electrical control design. This results in low system compatibility and low debugging complexity, making this application very easy and convenient to use.

[0045] Thirdly, by setting the protective sleeve and opening the first and second slots, the protective sleeve serves as a carrier to install and fix the first and second magnetic scales, ensuring that the first and second magnetic scales are firmly fixed and not easily moved. Furthermore, the protective sleeve covers the first and second magnetic scales, providing good concealment and protection, making them less susceptible to damage or scratches from external objects, thus extending their service life.

[0046] Fourthly, by providing the first sliding guide with a first slide rail and a first slider, the first reading head and the rear end of the first piston-type push rod are guided during their back-and-forth movement, ensuring a stable and reliable movement path and preventing circumferential displacement during the movement. Similarly, by providing the second sliding guide with a second slide rail and a second slider, the second reading head and the rear end of the second piston-type push rod are guided during their back-and-forth movement, ensuring a stable and reliable movement path and preventing circumferential displacement during the movement.

[0047] Fifthly, when the first adhesive in the first glue tube is viscous or otherwise causes significant resistance to the forward movement of the first piston-type push rod, resulting in a smaller displacement difference between the first and second piston-type push rods (i.e., the forward movement distances are unequal and the difference is equal to or greater than a preset value), this can be detected by the first and second reading heads. Similarly, when the second adhesive in the second glue tube is viscous or otherwise causes significant resistance to the forward movement of the second piston-type push rod, resulting in a smaller displacement difference between the second and third piston-type push rods (i.e., the forward movement distances are unequal and the difference is equal to or greater than a preset value), this can also be detected by the first and second reading heads. This indicates an abnormal glue dispensing ratio between the first and second adhesives in the first and second glue tubes, thus demonstrating that this application effectively provides a more precise monitoring function for the glue ratio.

[0048] Sixthly, by setting the front sealing ring A, the front sealing ring B, the rear sealing ring A, and the rear sealing ring B, the first piston-type push rod and the second piston-type push rod can achieve good sealing inside the cylinder and prevent air leakage and glue ingress when they move back and forth relative to the cylinder inside the cylinder. This makes the cylinder of this application stable and reliable in use. When the pneumatic piston of this application includes the detachably connected piston head, plug body, soft rubber ring, first sealing ring, and second sealing ring, it facilitates the maintenance of the pneumatic piston and enhances its reliability in use.

[0049] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0050] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0051] Figure 1 This is a schematic diagram of the overall structure of the glue ratio fine monitoring device of this utility model. Figure 1 ;

[0052] Figure 2 This is a breakdown of the glue ratio fine monitoring device of this utility model. Figure 1 ;

[0053] Figure 3 This is a schematic diagram of the overall structure of the glue ratio fine monitoring device of this utility model. Figure 2 ;

[0054] Figure 4 This is a breakdown of the glue ratio fine monitoring device of this utility model. Figure 2 ;

[0055] Figure 5 This is a cross-sectional view of the glue ratio fine monitoring device of this utility model;

[0056] Figure 6 yes Figure 5 Enlarged view of H in the middle;

[0057] Figure 7 In this embodiment of the utility model, the pneumatic piston is disassembled. Figure 1 ;

[0058] Figure 8 In this embodiment of the utility model, the pneumatic piston is disassembled. Figure 2 ;

[0059] Figure label:

[0060] 1000-piece glue ratio fine monitoring device;

[0061] Cylinder pusher component 10;

[0062] Cylinder 101; Front through-sleeve hole A1011; Front through-sleeve hole B1012; Rear through-sleeve hole A1013; Rear through-sleeve hole B1014; Gas inlet / outlet hole A1015; Gas inlet / outlet hole B1016; Pneumatic piston 102; First movable chamber 1021; Second movable chamber 1022; First telescopic spring 1023; Second telescopic spring 1024; Front sealing ring A103; Front sealing ring B104; Rear sealing ring A105; Rear sealing ring B106; Piston head 102a; First limiting cavity 102a1; Second limiting cavity 102a2; First insertion hole 102a3; Second insertion hole 102a4; Plug body 102b; First receiving cavity 102b1; Second receiving cavity 102b2; First through hole 102b3; Second through hole 102b4; Soft rubber ring 102c; First sealing ring 102d; Second sealing ring 102e;

[0063] First piston-type push rod 20;

[0064] First limiting outer edge 201;

[0065] Second piston push rod 30;

[0066] Second limiting outer edge 301;

[0067] Magnetic scale sensor assembly 40;

[0068] Magnetic scale 401; First magnetic scale 4011; Second magnetic scale 4012; Reading head 402; First reading head 4021; Second reading head 4022;

[0069] Protective sleeve 50;

[0070] First card slot 501; Second card slot 502; Left side panel 50a; Right side panel 50b; Top panel 50c; Bottom panel 50d;

[0071] First sliding guide 60;

[0072] First slide rail 601; First slider 602;

[0073] Second sliding guide 70;

[0074] Second slide rail 701; Second slider 702;

[0075] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0076] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0077] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "circumferential", "radial", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0078] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0079] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0080] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0081] The following describes in detail, with reference to the accompanying drawings, the glue ratio fine monitoring device 1000 of this utility model embodiment.

[0082] Reference Figures 1 to 8 As shown, the glue ratio fine monitoring device 1000 provided according to an embodiment of the present invention includes:

[0083] Cylinder pusher component 10;

[0084] A first piston-type push rod 20 for pushing the first adhesive forward and a second piston-type push rod 30 for pushing the second adhesive forward; the second piston-type push rod 30 is arranged parallel to the first piston-type push rod 20 in the front-back direction, and its middle part is fixedly mounted on the cylinder pushing member 10 so that it can be pushed to move synchronously back and forth under the control of the cylinder pushing member 10.

[0085] A magnetic scale sensor assembly 40 includes a magnetic scale 401 and a reading head 402. The magnetic scale 401 is fixedly mounted rearward at the rear of the cylinder push member 10. The reading head 402 is fixedly mounted at the rear end of the first piston push rod 20 and the second piston push rod 30, and is in contact with the magnetic scale 401, and can move back and forth relative to the magnetic scale 401.

[0086] Based on the above, it is clear that in specific implementation, this application is mainly used as a fine monitoring device for glue ratio 1000.

[0087] Specifically, in applying this application, the front end of the first piston-type push rod 20 is interference-fitted into the first glue cylinder containing the first adhesive, and the front end of the second piston-type push rod 30 is interference-fitted into the second glue cylinder containing the second adhesive. The inner diameters of the glue outlet holes at the front ends of the first and second glue cylinders are equal, and they are flush in the front-rear direction. A Y-shaped tube is used to mix the discharged adhesives. The ratio of the inner diameters of the first and second glue cylinders is set according to the mixing ratio when dispensing the adhesive.

[0088] During operation, the cylinder pushing component 10 controls the first piston-type push rod 20 and the second piston-type push rod 30 to move forward synchronously. The reading head 402 moves forward relative to the magnetic scale 401. By comparing with the displacement scale on the magnetic scale 401, the forward distance of the first piston-type push rod 20 and the second piston-type push rod 30 can be measured respectively. When the forward distances of the first piston-type push rod 20 and the second piston-type push rod 30 are not equal and their difference is equal to or greater than a preset value, it indicates that the first adhesive liquid in the first glue tube and the second adhesive liquid in the second glue tube are different. If the dispensing ratio of the two adhesives is abnormal, the synchronous forward movement of the first piston-type push rod 20 and the second piston-type push rod 30 controlled by the cylinder pushing component 10 should be stopped. The fault that occurs during the use of this application and the first and second glue cylinders should be checked. Conversely, if the forward movement distances of the first piston-type push rod 20 and the second piston-type push rod 30 are equal or unequal and the difference is less than a preset value, it indicates that the dispensing ratio of the first adhesive in the first glue cylinder and the second adhesive in the second glue cylinder is normal. At this time, the application can continue to be used.

[0089] Clearly, the use of this application as described above will have the following technical effects:

[0090] On the one hand, by using one cylinder pusher 10 to control the first piston pusher 20 and the second piston pusher 30 to move forward synchronously, compared with the traditional two-component dispensing device that uses two cylinder pushers 10 to control the same first piston pusher 20 and the second piston pusher 30 to move forward synchronously, this application can greatly save costs and avoid the asynchrony that may exist when the two cylinder pushers 10 are working, making this application stable and reliable in use.

[0091] On the other hand, traditional two-component dispensing devices generally use screw valves to push and deliver the two adhesives to be mixed. This application adopts the cylinder-driven component 10 and the magnetic scale sensor assembly 40 to replace the traditional screw valve. Its overall structure is simple, resulting in low operating costs and low maintenance difficulty. Moreover, its adaptability to adhesive characteristics is obviously not limited, and there is less "lag" in start-up, shutdown, and ratio adjustment. Furthermore, high-precision control is not difficult for small flow adhesives because the magnetic scale sensor assembly 40 described in this application is a mature existing product with high measurement accuracy, down to 0.001mm. This allows for precise monitoring of the adhesive ratio. At the same time, the cylinder-driven component 10 described in this application is obviously cylinder-driven, which is simple to drive and does not require complex electrical control design. This results in low system compatibility and low debugging complexity, making this application very easy and convenient to use.

[0092] Furthermore, through the above-mentioned optimized design, the whole constituted by this application is highly practical and has a good effect in use.

[0093] Furthermore, in specific implementation, in accordance with... Figure 2 and Figure 4 As shown, according to one embodiment of the present invention, the magnetic scale 401 includes a first magnetic scale 4011 and a second magnetic scale 4012; the reading head 402 includes a first reading head 4021 and a second reading head 4022.

[0094] The first magnetic scale 4011 and the second magnetic scale 4012 are fixedly mounted in parallel rearward position on the rear of the cylinder pushing member 10; the first reading head 4021 and the second reading head 4022 are respectively fixedly mounted on the rear end of the first piston-type push rod 20 and the rear end of the second piston-type push rod 30, and are respectively attached to the first magnetic scale 4011 and the second magnetic scale 4012, and can move back and forth relative to the first magnetic scale 4011 and the second magnetic scale 4012.

[0095] Therefore, when the cylinder pushing component 10 controls the first piston push rod 20 and the second piston push rod 30 to move forward synchronously, the first reading head 4021 will move forward relative to the first magnetic scale 4011. By referring to the displacement scale on the first magnetic scale 4011, the distance the first piston push rod 20 moves forward can be measured. Similarly, the second reading head 4022 will move forward relative to the second magnetic scale 4012. By referring to the displacement scale on the second magnetic scale 4012, the distance the second piston push rod 30 moves forward can be measured. When the first reading head 4021 and the second reading head 4022 are connected to a display terminal, the measured distances of the first piston push rod 20 and the second piston push rod 30 moving forward are not equal, and their difference is equal to or equal to the difference between them. When the value exceeds the preset value, the display terminal will display and issue an alarm to indicate that the dispensing ratio of the first adhesive in the first glue tube and the second adhesive in the second glue tube is abnormal. At this time, the user can be warned to stop using the cylinder pushing component 10 to control the first piston push rod 20 and the second piston push rod 30 to move forward synchronously, and to check what faults have occurred in the use of this application and the first and second glue tubes used in conjunction with it. Conversely, when the distances that the first piston push rod 20 and the second piston push rod 30 move forward are equal or unequal and the difference is less than the preset value, the display terminal will also display without issuing an alarm, indicating that the dispensing ratio of the first adhesive in the first glue tube and the second adhesive in the second glue tube is normal. At this time, the user can continue to use this application for work.

[0096] Furthermore, in the specific implementation, we will continue to refer to... Figure 2 and Figure 4 As shown, according to one embodiment of the present invention, this application also includes a protective sleeve 50;

[0097] The protective sleeve 50 is fixed rearward at the rear of the cylinder pushing member 10; the first magnetic scale 4011 and the second magnetic scale 4012 are both fixed rearward on the inner wall of the protective sleeve 50.

[0098] Preferably, in this technical solution, according to an embodiment of the present utility model, the inner wall of the protective sleeve 50 is provided with a first slot 501 and a second slot 502 along the front-back direction;

[0099] The first magnetic scale 4011 is fixed in the first slot 501; the second magnetic scale 4012 is fixed in the second slot 502.

[0100] Therefore, it can be clearly stated that:

[0101] On the one hand, by setting the protective sleeve 50 and opening the first slot 501 and the second slot 502, the protective sleeve 50 serves as a carrier to install and fix the first magnetic scale 4011 and the second magnetic scale 4012, so that the first magnetic scale 4011 and the second magnetic scale 4012 are fixed and stable and not easily moved.

[0102] On the other hand, the first magnetic scale 4011 and the second magnetic scale 4012 are respectively fixed in the first slot 501 and the second slot 502, and are covered by the protective sleeve 50, which makes them well hidden and well protected, and not easily damaged or scratched by external objects, thus resulting in a long service life.

[0103] Furthermore, through the above-mentioned optimized design, the overall performance of this application can be effectively improved.

[0104] Furthermore, in specific implementation, it is still necessary to refer to... Figure 2 and Figure 4 As shown, according to one embodiment of the present invention, this application further includes a first sliding guide 60 and a second sliding guide 70;

[0105] The first sliding guide 60 and the second sliding guide 70 are both fixedly mounted on the inner wall of the protective sleeve 50 in the front-back direction; the rear end of the first piston-type push rod 20 is fixedly mounted on the first sliding guide 60 and can slide back and forth; the rear end of the second piston-type push rod 30 is fixedly mounted on the second sliding guide 70 and can slide back and forth.

[0106] Preferably, in this technical solution, according to an embodiment of the present utility model, the first sliding guide 60 includes a first slide rail 601 fixedly disposed on the inner wall of the protective sleeve 50 in the front-back direction and a first slider 602 slidably disposed on the first slide rail 601; the second sliding guide 70 includes a second slide rail 701 fixedly disposed on the inner wall of the protective sleeve 50 in the front-back direction and a second slider 702 slidably disposed on the second slide rail 701.

[0107] The rear end of the first piston-type push rod 20 is connected to the first slider 602; the rear end of the second piston-type push rod 30 is connected to the second slider 702.

[0108] Therefore, by setting the first sliding guide 60 with the first slide rail 601 and the first slider 602, the first reading head 4021 and the rear end of the first piston push rod 20 are guided when moving back and forth, so that the movement path of the first reading head 4021 and the rear end of the first piston push rod 20 is stable and reliable when moving back and forth, and the movement process is not easy to shift circumferentially.

[0109] Furthermore, by providing the second sliding guide 70 with the second slide rail 701 and the second slider 702, the rear end of the second reading head 4022 and the second piston push rod 30 are guided when moving back and forth, so that the movement path of the second reading head 4022 and the rear end of the second piston push rod 30 is also stable and reliable when moving back and forth, and the movement process is also not easy to shift circumferentially.

[0110] Furthermore, through the above-mentioned optimized design, the overall performance of this application can be further improved.

[0111] Furthermore, in specific implementation, it is still necessary to refer to... Figure 2 and Figure 4 As shown, according to one embodiment of the present invention, the protective sleeve 50 is formed into a hollow cuboid structure and is composed of a left side plate 50a, a right side plate 50b, an upper panel 50c, and a lower panel 50d that are independently detachable and arranged along the front-back direction.

[0112] Therefore, in actual use, the inner walls of the left side plate 50a and the right side plate 50b can be respectively provided with the first slot 501 and the second slot 502 in the front-back direction to fix the first magnetic scale 4011 and the second magnetic scale 4012. The first slide rail 601 and the second slide rail 701 are fixed to the inner bottom surface of the lower panel 50d in the front-back direction. When the upper panel 50c is disassembled, the protective sleeve 50 can be opened to facilitate the maintenance or replacement of components such as the first magnetic scale 4011, the second magnetic scale 4012, the first slide rail 601, and the second slide rail 701, making this application convenient to use. Of course, the installation positions of the first magnetic scale 4011, the second magnetic scale 4012, the first slide rail 601, and the second slide rail 701 are not limited to the above examples, as long as their installation positions meet the actual use requirements.

[0113] Furthermore, in specific implementation, we will continue to refer to... Figure 2 and Figure 4 As shown, according to one embodiment of the present utility model, the cylinder pushing component 10 includes a cylinder barrel 101 and a pneumatic piston 102 that is movable back and forth, is engaged in the cylinder barrel 101, and is sleeved on the middle of the first piston-type push rod 20 and the middle of the second piston-type push rod 30.

[0114] Among them, the comparison Figure 5As shown, the front end of the cylinder barrel 101 has a front through hole A1011 and a front through hole B1012 through which the front ends of the first piston push rod 20 and the second piston push rod 30 respectively pass through; the rear end of the cylinder barrel 101 has a rear through hole A1013 and a rear through hole B1014 through which the rear ends of the first piston push rod 20 and the second piston push rod 30 respectively pass through.

[0115] And compare Figure 1 and Figure 3 As shown, the outer wall of the rear end of the cylinder barrel 101 has a gas inlet / outlet hole A1015 that connects to its inner rear part and is located behind the pneumatic piston 102; the outer wall of the front end of the cylinder barrel 101 has a gas inlet / outlet hole B1016 that connects to its inner front part and is located in front of the pneumatic piston 102.

[0116] Therefore, it can be clearly understood that when the gas inlet / outlet port A1015 is used to fill the rear part of the cylinder 101 or the gas inlet / outlet port B1016 provided at the front part of the cylinder 101 is used to draw out air, the pneumatic piston 102 is driven to move forward along the inside of the cylinder 101, thereby driving the first piston-type push rod 20 and the second piston-type push rod 30 to move forward synchronously, so as to push the first adhesive liquid in the first adhesive tube and the second adhesive liquid in the second adhesive tube in the matching pair forward, so as to discharge them forward according to a preset ratio.

[0117] Conversely, when the gas inlet / outlet port B1016 is used to pressurize the front part of the cylinder 101 or the gas inlet / outlet port A1015 provided at the rear part of the cylinder 101 is used to extract air, the pneumatic piston 102 is driven to move backward along the inside of the cylinder 101, thereby driving the first piston-type push rod 20 and the second piston-type push rod 30 to move backward synchronously to the initial position, so as to prepare for the subsequent synchronous forward pushing of the first adhesive liquid in the first adhesive tube and the second adhesive liquid in the second adhesive tube, so that they are discharged forward according to a preset ratio.

[0118] Preferably, in this technical solution, compared with Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, according to one embodiment of the present invention, the pneumatic piston 102 has a first movable cavity 1021 and a second movable cavity 1022 formed inside along the front-rear direction;

[0119] The first piston-type push rod 20 has a first limiting outer edge 201 that can move back and forth and is locked to the first movable cavity 1021. The front and rear width of the first limiting outer edge 201 is smaller than the front and rear length of the first movable cavity 1021. The first movable cavity 1021 is compressed and a first telescopic spring 1023 is locked to the outside of the first piston-type push rod 20. The front end of the first telescopic spring 1023 abuts against the rear end face of the first limiting outer edge 201, and the rear end abuts against the rear inner wall of the first movable cavity 1021.

[0120] Furthermore, the second piston-type push rod 30 has a second limiting outer edge 301 that can move back and forth and is attached to the second movable cavity 1022. The front and rear width of the second limiting outer edge 301 is smaller than the front and rear length of the second movable cavity 1022. The rear part of the second movable cavity 1022 is compressed and fitted with a second telescopic spring 1024 that is attached to the second piston-type push rod 30. The front end of the second telescopic spring 1024 abuts against the rear end face of the second limiting outer edge 301, and the rear end abuts against the rear inner wall of the second movable cavity 1022.

[0121] In specific implementation, the front and rear width of the first limiting outer edge 201 is equal to the front and rear width of the second limiting outer edge 301; the front and rear length of the first movable cavity 1021 is equal to the front and rear length of the second movable cavity 1022, and their front and rear ends are respectively flush.

[0122] Therefore, it can be clearly understood that under normal circumstances, when the pneumatic piston 102 is driven to move forward along the inside of the cylinder 101, thereby driving the first piston-type push rod 20 and the second piston-type push rod 30 to move forward synchronously, so as to push the first adhesive liquid in the first adhesive tube and the second adhesive liquid in the second adhesive tube to be discharged forward in a preset ratio, the first limiting outer edge 201 of the first piston-type push rod 20 can move back and forth in the first active cavity 1021 formed inside the pneumatic piston 102, and the second limiting outer edge 301 of the second piston-type push rod 30 can move back and forth in the second active cavity 1022 formed inside the pneumatic piston 102.

[0123] When the first adhesive liquid in the first glue tube is viscous, causing the first piston-type push rod 20 to be pushed forward with greater resistance, resulting in a displacement difference of less than that of the second piston-type push rod 30, that is, when the distances of forward movement are unequal and the difference is equal to or greater than a preset value, it can be measured by the first reading head 4021 and the second reading head 4022.

[0124] Similarly, when the second adhesive liquid inside the second glue tube is viscous or other reasons, causing the second piston-type push rod 30 to be pushed forward and encounter greater resistance, resulting in a displacement difference of less than that of the first piston-type push rod 20, that is, when the distance of forward movement is unequal and the difference is equal to or greater than a preset value, it can also be measured by the first reading head 4021 and the second reading head 4022.

[0125] This indicates that the dispensing ratio of the first adhesive in the first glue container to the second adhesive in the second glue container is abnormal, thus enabling this application to have a better function for fine monitoring of the adhesive ratio.

[0126] Furthermore, preferably, in this technical solution, compared with Figure 5 As shown, according to one embodiment of the present invention, a front sealing ring A103 is detachably fixed to the inner wall of the front through hole A1011 and tightly fitted to the outer wall of the first piston-type push rod 20; a front sealing ring B104 is detachably fixed to the inner wall of the front through hole B1012 and tightly fitted to the outer wall of the second piston-type push rod 30; a rear sealing ring A105 is detachably fixed to the inner wall of the rear through hole A1013 and tightly fitted to the outer wall of the first piston-type push rod 20; and a rear sealing ring B106 is detachably fixed to the inner wall of the rear through hole B1014 and tightly fitted to the outer wall of the second piston-type push rod 30.

[0127] Thus, by setting the front sealing ring A103, the front sealing ring B104, the rear sealing ring A105, and the rear sealing ring B106, the first piston-type push rod 20 and the second piston-type push rod 30 can ensure good sealing inside the cylinder 101 and prevent air leakage and glue ingress when they move back and forth relative to the cylinder 101 inside the cylinder 101, making the cylinder 101 of this application stable and reliable in use.

[0128] It should be added that, in specific implementation, we should continue to refer to... Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, according to the glue ratio fine monitoring device 1000 provided in the embodiment of this utility model, in order to facilitate the maintenance of the pneumatic piston 102 and enhance its reliability, the pneumatic piston 102 of this application preferably includes a detachably connected piston head 102a, a plug body 102b, a soft rubber ring 102c, a first sealing ring 102d and a second sealing ring 102e.

[0129] The piston head 102a is located at the front end of the plug body 102b, and its rear end face has a first limiting cavity 102a1 and a second limiting cavity 102a2. The first limiting cavity 102a1 has a first insertion hole 102a3 extending forward to the front end face of the piston head 102a, and the second limiting cavity 102a2 has a second insertion hole 102a4 extending forward to the front end face of the piston head 102a. The front end face of the plug body 102b has a first receiving cavity 102b1 facing the first limiting cavity 102a1 and a second receiving cavity 102b2 facing the second limiting cavity 102a2 in the front-rear direction. A first through hole 102b3 extending rearward from the middle of the plug body 102b is formed, penetrating to the rear end face of the plug body 102b; a second through hole 102b4 extending rearward from the middle of the second accommodating cavity 102b2 is formed, penetrating to the rear end face of the plug body 102b; the soft rubber ring 102c is sleeved on the outside of the plug body 102b, and its outer wall tightly abuts against the inner wall of the cylinder barrel 101; the first sealing ring 102d is detachably fixed to the inner wall of the first through hole 102b3 and tightly sleeved on the outside of the first piston-type push rod 20; the second sealing ring 102e is detachably fixed to the inner wall of the second through hole 102b4 and tightly sleeved on the outside of the second piston-type push rod 30.

[0130] Furthermore, the front-to-back length of the first limiting cavity 102a1 is equal to the front-to-back length of the second limiting cavity 102a2, the front-to-back length of the first accommodating cavity 102b1 is equal to the front-to-back length of the second accommodating cavity 102b2, the inner diameter of the first limiting cavity 102a1 is greater than the inner diameter of the first accommodating cavity 102b1, and the inner diameter of the second limiting cavity 102a2 is greater than the inner diameter of the second accommodating cavity 102b2.

[0131] The first limiting cavity 102a1 and the first accommodating cavity 102b1 constitute the first movable cavity 1021, and the second limiting cavity 102a2 and the second accommodating cavity 102b2 constitute the second movable cavity 1022.

[0132] Meanwhile, the front and rear width of the first limiting outer edge 201 is less than the front and rear length of the first limiting cavity 102a1, the front and rear width of the second limiting outer edge 301 is less than the front and rear length of the second limiting cavity 102a2, the front and rear width of the first limiting outer edge 201 is equal to the front and rear width of the second limiting outer edge 301, and the outer diameter of the first limiting outer edge 201 is greater than the inner diameter of the first accommodating cavity 102b1, and the outer diameter of the second limiting outer edge 301 is greater than the inner diameter of the second accommodating cavity 102b2.

[0133] In this application, the first limiting outer edge 201 is movable and locked within the first limiting cavity 102a1, and the second limiting outer edge 301 is movable and locked within the second limiting cavity 102a2; the first telescopic spring 1023 is in a compressed state, locked within the first accommodating cavity 102b1 and sleeved outside the first piston-type push rod 20, with its front end abutting against the rear end face of the first limiting outer edge 201 and its rear end abutting against the rear inner wall of the first accommodating cavity 102b1; the second telescopic spring 1024 is in a compressed state, locked within the second accommodating cavity 102b2 and sleeved outside the second piston-type push rod 30, with its front end abutting against the rear end face of the second limiting outer edge 301 and its rear end abutting against the rear inner wall of the second accommodating cavity 102b2.

[0134] Thus, when the first telescopic spring 1023 and / or the second telescopic spring 1024 lose their elasticity, the piston head 102a and the plug body 102b can be removed to replace the first telescopic spring 1023 and / or the second telescopic spring 1024.

[0135] Furthermore, the front sealing ring A103, front sealing ring B104, rear sealing ring A105, rear sealing ring B106, first sealing ring 102d, and second sealing ring 102e can also be pulled off with slight force for maintenance and replacement.

[0136] Other embodiments, etc., will not be described here.

[0137] In summary, the glue ratio fine monitoring device 1000 provided in this application, in specific implementation, uses one of the aforementioned cylinder pushing components 10 to control the first piston push rod 20 and the second piston push rod 30 to move forward synchronously. Compared with the traditional two-component dispensing device that uses two cylinder pushing components 10 to control the equivalent first piston push rod 20 and second piston push rod 30 to move forward synchronously, this application can greatly save costs and avoid the possible asynchrony when the two cylinder pushing components 10 are working, making this application stable and reliable in use.

[0138] Furthermore, traditional two-component dispensing devices generally use screw valves to push and deliver the two adhesives to be mixed. This application adopts the cylinder-driven component 10 and the magnetic scale sensor assembly 40 to replace the traditional screw valve. Its overall structure is simple, resulting in low operating costs and low maintenance difficulty. Moreover, its adaptability to adhesive characteristics is obviously not limited, and there is less "lag" in start-up, shutdown, and ratio adjustment. For small flow adhesives, high-precision control is not difficult because the magnetic scale sensor assembly 40 described in this application is a mature existing product with high measurement accuracy, down to 0.001mm. This allows for precise monitoring of the adhesive ratio. At the same time, the cylinder-driven component 10 described in this application is obviously cylinder-driven, which is simple to drive and does not require complex electrical control design. This results in low system compatibility and low debugging complexity, making this application very easy and convenient to use.

[0139] Furthermore, by setting the protective sleeve 50 and opening the first slot 501 and the second slot 502, the protective sleeve 50 serves as a carrier to install and fix the first magnetic scale 4011 and the second magnetic scale 4012, ensuring that the first magnetic scale 4011 and the second magnetic scale 4012 are firmly fixed and not easily moved. The protective sleeve 50 also covers the first magnetic scale 4011 and the second magnetic scale 4012, providing good concealment and protection, making them less likely to be damaged or scratched by external objects, thus extending their service life.

[0140] Furthermore, by providing the first sliding guide 60 with the first slide rail 601 and the first slider 602, the rear end of the first reading head 4021 and the first piston-type push rod 20 are guided during their back-and-forth movement, ensuring a stable and reliable movement path and preventing circumferential displacement during the movement. Similarly, by providing the second sliding guide 70 with the second slide rail 701 and the second slider 702, the rear end of the second reading head 4022 and the second piston-type push rod 30 are guided during their back-and-forth movement, ensuring a stable and reliable movement path and preventing circumferential displacement during the movement.

[0141] Furthermore, when the first adhesive in the first glue tube experiences significant resistance due to viscosity or other reasons, causing the first piston-type push rod 20 to be pushed forward, resulting in a displacement difference that is less than the displacement difference of the second piston-type push rod 30, meaning the forward movement distances are unequal and the difference is equal to or greater than a preset value, this can be detected by the first reading head 4021 and the second reading head 4022. Similarly, when the second adhesive in the second glue tube experiences significant resistance due to viscosity or other reasons, causing the second piston-type push rod 30 to be pushed forward, resulting in a displacement difference that is less than the displacement difference of the first piston-type push rod 20, meaning the forward movement distances are unequal and the difference is equal to or greater than a preset value, this can also be detected by the first reading head 4021 and the second reading head 4022. This indicates an abnormal glue dispensing ratio between the first adhesive in the first glue tube and the second adhesive in the second glue tube, thus demonstrating that this application indeed possesses a good function for precise monitoring of the glue ratio.

[0142] Furthermore, by setting the front sealing ring A103, front sealing ring B104, rear sealing ring A105, and rear sealing ring B106, the first piston-type push rod 20 and the second piston-type push rod 30 can ensure good sealing of the cylinder 101 and prevent air leakage and glue ingress when they move back and forth relative to the cylinder 101 inside the cylinder 101. This makes the cylinder 101 of this application stable and reliable in use. When the pneumatic piston 102 of this application includes the detachably connected piston head 102a, piston body 102b, soft rubber ring 102c, first sealing ring 102d, and second sealing ring 102e, it facilitates the maintenance of the pneumatic piston 102 and enhances its reliability in use.

[0143] Furthermore, the 1000 glue ratio fine monitoring device provided in this application is indeed highly practical and has excellent performance, which makes this application inherently valuable for market promotion and will certainly be very popular and widely adopted.

[0144] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0145] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A device for precise monitoring of adhesive ratio, characterized in that, include: Cylinder-driven components; A first piston-type push rod and a second piston-type push rod; the second piston-type push rod and the first piston-type push rod are arranged parallel to each other in the front-back direction, and their middle parts are fixed on the cylinder pushing component so that they can be pushed to move back and forth synchronously under the control of the cylinder pushing component. A magnetic scale sensor assembly; the magnetic scale sensor assembly includes a magnetic scale and a reading head; the magnetic scale is fixedly mounted rearward on the rear of the cylinder pusher component; the reading head is fixedly mounted on the rear end of the first piston-type push rod and the second piston-type push rod, and is in contact with the magnetic scale, and can move back and forth relative to the magnetic scale.

2. The glue ratio fine monitoring device according to claim 1, characterized in that, The magnetic scale includes a first magnetic scale and a second magnetic scale; the reading head includes a first reading head and a second reading head; The first and second magnetic scales are fixedly mounted parallel to each other at the rear of the cylinder pusher; the first and second reading heads are fixedly mounted at the rear ends of the first and second piston-type push rods, respectively, and are in contact with the first and second magnetic scales, respectively, and can move back and forth relative to the first and second magnetic scales.

3. The glue ratio fine monitoring device according to claim 2, characterized in that, It also includes a protective sleeve; The protective sleeve is fixed to the rear of the cylinder pushing component; the first magnetic scale and the second magnetic scale are both fixed to the inner wall of the protective sleeve.

4. The glue ratio fine monitoring device according to claim 3, characterized in that, The inner wall of the protective sleeve is provided with a first slot and a second slot along the front-to-back direction; The first magnetic scale is fixed in the first slot; the second magnetic scale is fixed in the second slot.

5. The glue ratio fine monitoring device according to claim 3, characterized in that, It also includes a first sliding guide and a second sliding guide; Both the first and second sliding guide members are fixed to the inner wall of the protective sleeve in the front-to-back direction; the rear end of the first piston-type push rod is fixed to the first sliding guide member in a sliding manner; the rear end of the second piston-type push rod is fixed to the second sliding guide member in a sliding manner.

6. The glue ratio fine monitoring device according to claim 5, characterized in that, The first sliding guide includes a first slide rail fixed to the inner wall of the protective sleeve in the front-back direction and a first slider that can slide back and forth on the first slide rail; the second sliding guide includes a second slide rail fixed to the inner wall of the protective sleeve in the front-back direction and a second slider that can slide back and forth on the second slide rail. The rear end of the first piston-type push rod is connected to the first slider; the rear end of the second piston-type push rod is connected to the second slider.

7. The glue ratio fine monitoring device according to claim 3, characterized in that, The protective sleeve is formed into a hollow cuboid structure, and is composed of a left side plate, a right side plate, a top plate and a bottom plate that can be independently disassembled along the front and back directions.

8. The glue ratio fine monitoring device according to any one of claims 1-7, characterized in that, The cylinder pushing component includes a cylinder barrel and a pneumatic piston that can move back and forth, is locked inside the cylinder barrel, and is sleeved on the middle of the first piston-type push rod and the middle of the second piston-type push rod. The cylinder barrel has a front through hole A and a front through hole B at the front end so that the front ends of the first piston push rod and the second piston push rod can pass through respectively; the cylinder barrel has a rear through hole A and a rear through hole B at the rear end so that the rear ends of the first piston push rod and the second piston push rod can pass through respectively. The outer wall of the rear end of the cylinder has a gas inlet / outlet port A that connects to its inner rear part and is located behind the pneumatic piston; the outer wall of the front end of the cylinder has a gas inlet / outlet port B that connects to its inner front part and is located in front of the pneumatic piston.

9. The glue ratio fine monitoring device according to claim 8, characterized in that, The pneumatic piston has a first movable chamber and a second movable chamber formed inside along the front-to-back direction; The first piston-type push rod has a ring that can move back and forth and is locked to the first limiting outer edge of the first movable cavity; the first movable cavity has a set of first telescopic springs installed outside the first piston-type push rod in a compressed state at the rear. The second piston-type push rod has a ring that can move back and forth and is locked to the second limiting outer edge of the second movable cavity; the rear part of the second movable cavity is fitted with a set of second telescopic springs located outside the second piston-type push rod in a compressed state.

10. The glue ratio fine monitoring device according to claim 8, characterized in that, A front sealing ring A is detachably fixed to the inner wall of the front through hole A, and a front sealing ring B is detachably fixed to the inner wall of the front through hole B; a rear sealing ring A is detachably fixed to the inner wall of the rear through hole A, and a rear sealing ring B is detachably fixed to the inner wall of the rear through hole B.

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