CN115921258A - MCS sensor elastic steel plate gluing method and gluing control method - Google Patents
MCS sensor elastic steel plate gluing method and gluing control method Download PDFInfo
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- CN115921258A CN115921258A CN202211704789.XA CN202211704789A CN115921258A CN 115921258 A CN115921258 A CN 115921258A CN 202211704789 A CN202211704789 A CN 202211704789A CN 115921258 A CN115921258 A CN 115921258A
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Abstract
In the MCS sensor, an elastic steel plate is used as an elastic body, a copper foil is bonded on the elastic body by using an adhesive to be used as a conductive layer, the bonding process relates to a stainless steel gluing technology, the manual gluing error rate in the prior art is high, the production efficiency is low, and the gluing requirements of high precision, high efficiency, high quality and intellectualization cannot be met. The invention provides a gluing method and a gluing control method for an elastic steel plate of an MCS sensor. And (3) adopting a multi-time overlapping spraying mode, curing after each spraying, wherein the thickness increment of the cured glue layer is 10-15 mu m, and then carrying out secondary gluing until the thickness of the glue layer reaches 80 mu m +/-2 mu m finally. The gluing method provided by the application has the advantages that the thickness of the glued layer is uniform, the labor cost is reduced, and meanwhile, the production efficiency is improved.
Description
Technical Field
The invention relates to the field of MCS sensor, in particular to a gluing method and a gluing control method for an elastic steel plate of an MCS sensor.
Technical Field
In the manufacturing process of the MCS sensor, the elastic steel plates are used as elastic bodies, have dimensional stability and can also provide physical support for the arrangement of components and leads, but the copper foils are required to be bonded to the elastic bodies through adhesives to be used as conductive layers. In the use of MCS sensor, the elastic steel plate receives pressure at first, when the elastic steel plate receives pressure, transmits pressure to the bonding glue layer, and if the bonding glue layer is uneven and consistent, the pressure that the bonding glue layer transmitted to the Wheatstone bridge will have the deviation, and then leads to the MCS sensor to detect the precision poor. In the prior art, the adhesive is mainly applied by adopting a screen printing technology during bonding, and the adhesive is coated on the surface of the rigid member at one time. This coating process has a number of drawbacks and deficiencies, such as: the manual coating can not ensure that the force is the same at each position during coating, so that the thickness of the coated adhesive layer is not uniform; the manual coating error rate is high, the production efficiency is low, the workload is large, and the manual coating is not intelligent and automatic; for products requiring a larger glue line thickness, bubbles are easily generated on the surface of the glue line because the process is completed by one-time coating, and the solvent in the glue line is difficult to remove cleanly when the glue line is cured, and the residual solvent in the glue line can seriously damage the bonding performance of the adhesive.
Disclosure of Invention
The invention aims to provide a gluing method and a gluing control method for an elastic steel plate of an MCS sensor, and the gluing method and the gluing control method are used for solving the problems that in the gluing method for the elastic steel plate of the MCS sensor in the prior art, the manual gluing thickness is uneven, the gluing efficiency is low, air bubbles exist in a glue layer and the like.
In a first aspect, the application provides a method for gluing an elastic steel plate of an MCS sensor, comprising the following steps:
the MCS sensor elastic steel plate gluing method comprises the following steps:
pretreatment: grinding the surface of the elastic steel plate, cleaning to remove oil stains and impurities on the surface, and finally roughening the gluing surface;
setting parameters: setting various parameters and modes of gluing in the software system of the gluing machine;
placing and self-leveling: placing the elastic steel plate coated with the glue on a clean horizontal plane to enable the glue layer to automatically level;
and (3) curing: after the self-leveling of the elastic steel plate adhesive layer is finished, placing the elastic steel plate adhesive layer into an oven for curing;
and (3) cooling: taking out the elastic steel plate immediately after solidification, and placing the elastic steel plate on a heat dissipation plate for cooling;
and (3) detection: and after the elastic steel plate coated with the glue is cooled to room temperature, testing the thickness of the glue layer by using a thickness gauge.
As a practical example, the adhesive is uniformly stirred before use, so that the bottom precipitation is avoided from influencing the gluing effect.
As an example of an implementation, the elastic steel plate for gluing is a 17-4PH stainless steel plate (200 mm × 100mm × 8 mm), and the parallelism is required to be less than or equal to 2 wires.
As an example of implementation, the surface of the 17-4PH elastic steel plate is ground with fine corundum sand (both sides are ground), and the grinding time per side is not less than 30min.
As an example of implementation, after grinding, the surface of the elastic stainless steel plate with the pH of 17-4 is cleaned by using an industrial detergent to remove oil stains and impurities so as not to influence the subsequent roughening treatment.
As an implementable example, after cleaning, the coated surface of the 17-4PH elastic stainless steel plate is subjected to roughening treatment (the back surface is covered on the surface by using adhesive tape or protective glue, and then the surface is removed after roughening is finished), wherein roughening solution is prepared by self, the roughening temperature is room temperature, and the roughening time is 12min.
As an example of implementation, the coarsening liquid is FeCl in a mass ratio 3 ∶HCl∶H 2 Preparing a mixture with the ratio of O = 1: 5: 10, wherein the coarsening temperature is room temperature, and the coarsening time is 12min; the coarsening specific process comprises the following steps: preparing a roughening solution, coating a protective adhesive on the back surface of the stainless steel plate to cover the stainless steel plate, placing the stainless steel plate with the adhesive surface facing upwards, roughening for 12min, and taking out the stainless steel plate with gloves; coarsening can increase the surface area of the elastic steel plate, so that the attachment area of the glue layer on the surface is increased, and the bonding effect is better.
As an example of the implementation, after roughening, the surface of the elastic stainless steel plate is cleaned with a roughening solution.
As an implementable example, the MCS sensor is coated by a multi-overlapping spraying mode, and the thickness increment of the glue layer after each spraying and curing is 10-15 mu m.
As an implementable example, the glue spreader uses an AC-500S online glue spreader produced by Shenzhen City axle center automatic control technology Limited.
As an implementable example, the mode and parameters in the gluing process are set in the software system of the AC-500S online gluing machine, which is specifically as follows:
the teaching mode comprises the following steps: the following steps of (1) teaching;
start and end positions: the starting position and the ending position are two diagonal points on the elastic steel plate respectively;
atomizing in advance: 0.1s;
gluing speed: 180mm/s-200mm/s;
gluing height: 25mm-30mm;
valve opening time: 5ms;
closing the valve: 5ms;
and (3) glue spraying mode: selecting a Spray;
teaching mode: byNozle;
striker stroke: 3-4 cases;
line spacing: 4mm-6mm;
and (3) superposition mode: the compression mode is selected.
As an implementation example, the elastic steel plate coated with the glue is placed on a plane in a clean space, the glue layer is allowed to level automatically, and the leveling time is more than or equal to 10min.
As an implementable example, the glue layer on the surface of the elastic steel plate is placed into an oven for curing after the self-leveling is finished, the curing temperature is 105 ℃, and the curing time is 13-15min.
As an example of an implementation, immediately after the solidification, the 17-4PH stainless elastic plate is taken out and put on a cooling plate for cooling.
As an implementation example, after the 17-4PH elastic stainless steel plate is cooled to room temperature, the thickness of the glue layer is tested by using a thickness gauge, data is recorded, and then the 17-4PH elastic stainless steel plate is placed on a jig of the glue spreader again, and the previous operation is repeated for the second gluing; and finishing the coating process until the thickness of the glue layer reaches 80 mu m after curing.
In a second aspect, the application provides a method for controlling gluing of an elastic steel plate of an MCS sensor, comprising the following steps:
acquiring the set gluing parameters;
specifically, the gluing parameters input in the computer software system are obtained, such as: the surface teaching position, the starting and ending position, the advance atomization, the gluing speed, the gluing height, the valve opening time, the valve closing time, the glue spraying mode, the teaching mode, the firing pin stroke, the line spacing and the overlapping mode.
Determining the gluing speed, the gluing path and the gluing area of the glue valve in the gluing process according to the parameters;
specifically, the obtained parameters are analyzed, the path and the area of the glue valve to be glued are determined according to the set gluing starting position and the set gluing ending position, and the gluing speed of the glue valve in the gluing process is determined.
Judging whether the glue valve moves to a glue coating end position set in the parameters;
specifically, whether the glue valve reaches the specified gluing end position after the gluing area is coated according to the determined gluing path is judged.
Stopping gluing after the glue valve reaches a specified end position;
specifically, after the glue valve is moved to a designated glue application end position, the glue application is terminated.
The beneficial technical effects of this application are as follows:
(1) The glue outlet of the glue spreader is stable, the glue spreader is not influenced by the surrounding environment, and a glue layer with uniform thickness can be obtained;
(2) The gluing method for the elastic steel plate of the MCS sensor greatly reduces the use amount of labor force and the production cost, and improves the production efficiency to a great extent;
(3) In the gluing process of the elastic steel plate of the MCS sensor, after program parameters are set for a product, the product can be directly called in the second gluing process, so that the stability of a glue layer is ensured;
(4) After each gluing, self-leveling is carried out, so that a glue layer with a flat and smooth surface can be obtained;
(5) The gluing method provided by the application adopts a mode of multiple-time overlapping coating, bubbles can be prevented from being generated on the surface of the glue layer, and the glue layer is cured after each coating, so that the solvent in the glue layer is completely removed;
(6) The thickness of the glue layer can be controlled by adjusting the stroke of the firing pin or the feeding air pressure;
(7) In the gluing process, program parameters and gluing times can be determined in a previous experiment, thickness measurement can be performed according to the times without measuring the thickness at each time in later production, and the measurement is performed after the set times are coated, so that the working efficiency is improved;
(8) The whole operation process is simple and easy to understand.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
FIG. 1 is a flow chart of a method for gluing an elastic steel plate of an MCS sensor;
FIG. 2 is a flowchart of a control method for gluing the elastic steel plate of the MCS sensor.
Detailed Description
To make the objects, technical solutions and advantages of the present application clearer, the technical solutions of the present application will be described clearly and completely with reference to fig. 1-2 of the present application, and it is obvious that the described embodiments are some, but not all embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The technical solution provided by the present application is further described below with reference to the following examples.
Embodiment 1, this embodiment provides a method for gluing an elastic steel plate of an MCS sensor.
As shown in FIG. 1, the MCS sensor elastic steel plate gluing method comprises the following steps:
pretreatment: grinding the surface of the elastic steel plate, cleaning to remove oil stains and impurities on the surface, and finally roughening the gluing surface;
setting parameters: setting various parameters and modes of gluing in the software system of the gluing machine;
placing and self-leveling: placing the elastic steel plate coated with the glue on a clean horizontal plane to enable the glue layer to automatically level;
and (3) curing: after the self-leveling of the elastic steel plate adhesive layer is finished, placing the elastic steel plate adhesive layer into an oven for curing;
and (3) cooling: taking out the elastic steel plate immediately after solidification, and placing the elastic steel plate on a heat dissipation plate for cooling;
and (3) detection: and after the elastic steel plate coated with the glue is cooled to room temperature, testing the thickness of the glue layer by using a thickness gauge.
Specifically, when the adhesive is coated, a multiple-overlapping spraying mode is adopted. Firstly, grinding, cleaning and roughening the surface of an elastic steel plate, then spraying the elastic steel plate by using a glue spreader with set parameters, taking out the elastic steel plate after spraying, placing the elastic steel plate on a flat table top in a clean space for standing for at least 10min to enable the adhesive on the surface of the elastic steel plate to be self-leveling, then placing the elastic steel plate into an oven for curing, wherein the increase of the thickness of the adhesive layer after each spraying and curing is required to be 10-15 mu m, covering and spraying are carried out again after curing, and the operation is repeated until the thickness of the adhesive layer after curing reaches 80 mu m +/-2 mu m (the thickness of the adhesive of the MCS sensor is required to be 80 mu m).
Specifically, the adhesive is uniformly stirred before use, so that the influence of precipitation generated at the bottom on the gluing effect is avoided.
Specifically, the elastic steel plate used for gluing is a 17-4PH elastic stainless steel plate (200 mm multiplied by 100mm multiplied by 8 mm), and the parallelism is less than or equal to 2 threads.
Specifically, the elastic steel plate is processed back, and the surface has the burr, grinds (both sides all need grind) with thin corundum sand, and every grinding time is no less than 30min, can guarantee to get rid of the surface burr, obtains smooth surface.
Specifically, after the elastic steel plate is ground, the surface of the elastic steel plate is cleaned by an industrial detergent, oil stains and impurities are removed, the oil stains can isolate the elastic steel plate from the coarsening liquid, and the coarsening liquid cannot react on the surface of the elastic steel plate to influence the subsequent coarsening effect.
In particular, the method comprises the following steps of,roughening the rubber coated surface of the cleaned elastic steel plate (covering the back surface with an adhesive tape or protective glue, and removing the roughened surface), wherein the roughening solution is FeCl in a mass ratio 3 ∶HCl∶H 2 Preparing a mixture with the ratio of O = 1: 5: 10, wherein the coarsening temperature is room temperature, and the coarsening time is 12min;
specifically, the coarsening specific process comprises: preparing a roughening solution, coating a protective adhesive on the back surface of the stainless steel plate to cover the stainless steel plate, placing the stainless steel plate with the adhesive surface facing upwards, roughening for 12min, and taking out the stainless steel plate with gloves; the coarsening can increase the surface area of the elastic steel plate, and also increases the attachment area of the glue layer on the glue layer, so that the bonding effect is better.
Specifically, the roughening solution is used for cleaning the surface after roughening.
Specifically, the MCS sensor gluing adopts a multiple-overlapping spraying mode, the multiple-overlapping spraying mode can enable the solvent in the glue layer to be removed more cleanly, if the thickness of the glue layer is enough to be coated once, the solvent in the glue layer cannot be removed cleanly due to too thick thickness, the bonding effect is affected, and therefore the multiple-overlapping spraying mode can enable the bonding performance of the glue layer to be better.
Specifically, the glue spreader uses an AC-500S online glue spreader produced by Shenzhen City axle center self-control technology Limited; the thickness measurement of the glue layer adopts an FDL600 coating thickness meter.
Specifically, the elastic steel plate coated with the glue is placed on a plane in a clean space, so that the glue layer is self-leveled, the leveling time is more than or equal to 10min, and the effect is that the thickness of the glue layer is more uniform after the glue layer is self-leveled, and the surface is more flat.
Specifically, after the self-leveling of the adhesive layer on the surface of the elastic steel plate is finished, putting the elastic steel plate into an oven for curing, wherein the curing temperature is 105 ℃, and the curing time is 13-15min; the coated adhesive layer contains solvent components, the adhesion performance of the adhesive layer can be seriously influenced if the solvent is not completely removed, the solvent can be effectively removed under the curing condition of 105 ℃ and 13-15min, and the adhesion performance of the adhesive is improved.
Specifically, the thickness of the glue layer is 10-15 μm after the elastic steel plate of the MCS sensor is sprayed and cured once every time, the solvent cannot be completely removed when the glue layer is too thick, the bonding effect is affected, the gluing frequency is increased when the glue layer is too thin, and the working efficiency is reduced.
Specifically, after the curing is completed, the elastic steel plate is immediately taken out and placed on a heat dissipation plate for cooling.
Specifically, after the elastic steel plate is cooled to room temperature, the thickness of the glue layer is tested by a thickness meter, and data are recorded.
Specifically, the elastic steel plate subjected to the primary gluing is placed on a jig of the gluing machine again, and the previous operation is repeated to perform secondary gluing.
Specifically, the glue is applied by multiple overlapping spraying, and when the total thickness of the glue layer is cured and reaches 80 micrometers, the coating process is finished; after the adhesive is coated on the elastic steel plate, a layer of constantan foil material is required to be laid on the elastic steel plate, then the constantan foil is pressed on the stainless steel plate by a vacuum combined press, the adhesive is used as an intermediate insulating layer, and the performances (such as hysteresis, stability and the like) of the sensor are not influenced, so the constantan foil cannot be too thick, but cannot be too thin, because enough peel strength (more than or equal to 4.0N/cm) and compressive strength (250V/DC/1 min) are required, experiments show that when the adhesive is selected to be 80 mu m, the performance of the sensor is slightly influenced after vacuum combined press, and the requirements on peel strength and compressive strength can be met.
Embodiment 2, this embodiment provides gluing parameters and a gluing mode of a gluing machine in the MCS sensor elastic steel plate gluing method, which are specifically as follows:
the teaching mode comprises the following steps: the teaching of the noodle;
specifically, the teaching mode selection surface is simple and convenient to teach and operate, and the glue coating area can be determined by teaching the glue valve to the starting point and the end point of the glue coating surface.
Start and end positions: the starting position and the ending position are respectively arranged at two diagonal points on the elastic steel plate;
atomizing in advance: 0.1s;
specifically, 0.1s just opens the atomizing before the valve opens, can guarantee like this that the binder of initial point spouts with the atomizing situation rather than directly dripping with the liquid form, guaranteed can not have the big condition of adhesive tape thickness in rubber coating initial position, if do not open the atomizing in advance, open the valve in the twinkling of an eye the binder can drip, lead to initial point adhesive tape thickness big for whole adhesive tape is inhomogeneous, influences sensor stability.
Gluing speed: 180mm/s-200mm/s;
specifically, the gluing speed is the moving speed of the valve in the gluing process, when other conditions are not changed, the larger the gluing speed is, the faster the valve moves, and the smaller the thickness of the glue layer obtained on the surface of the stainless steel is, because the experiment requires that the thickness of the glue layer after each spraying and curing is smaller (10-15 μm), the larger gluing speed needs to be selected, but when the gluing speed is too large, the valve moves too fast, and glue leakage can occur; when the gluing speed is selected to be 180-200 mm/s in the experiment, the requirement that the thickness is small after each spraying is met, and the conditions of glue leakage and the like are avoided.
Gluing height: 25mm-30mm;
specifically, the gluing height is the height of the valve in the gluing process, and the gluing height is 25mm-30mm to ensure the glue atomization effect and avoid gullies on the surface of the glue; in the gluing process, when other conditions are the same, the lower the valve height is, the weaker the atomization effect of the adhesive is, the more concentrated the sprayed adhesive is, the higher the valve height is, the more obvious the atomization effect of the adhesive is, the more scattered the sprayed adhesive is, because of the overlapping spraying, when the valve is too low, the concentration of the adhesive blown out by physicochemical pressure is high, and gullies can be formed on the surface of the existing adhesive layer.
Valve opening time: 5ms;
closing the valve: 5ms;
glue spraying mode: selecting a Spray;
teaching mode: byNozle;
specifically, the selection valve teaches positioning, and compared with the selection camera positioning, the valve positioning is more visual and clear, and the valve can be directly moved to a specified position in operation.
Striker stroke: 3-4 lattices;
specifically, the stroke of the firing pin determines the glue outlet amount of the valve, the larger the stroke of the firing pin is, the larger the movable space of the firing pin is, the larger the glue outlet amount is, the larger the thickness of the obtained glue layer is, 3-4 grids are selected, the thinner the obtained glue layer is, the normal glue supply is ensured, and the glue breaking phenomenon cannot occur in the gluing operation process.
Line spacing: 4mm-6mm;
specifically, the line spacing refers to the distance of transverse movement of the valve after the valve runs one line every time in the operation process, and when the line spacing is selected to be 4-6 mm, two adjacent lines can be connected without blank areas, and uneven thickness caused by excessive overlapping can be avoided.
A superposition mode: selecting a compression mode;
specifically, the compression mode is selected, lines on the sprayed surface are distributed more uniformly, and the thickness of the obtained glue layer is also more uniform.
Embodiment 3, as shown in fig. 2, this embodiment provides a method for controlling gluing of an elastic steel plate of an MCS sensor, comprising the following steps:
acquiring the set gluing parameters;
specifically, the gluing parameters manually input in the computer software system are obtained, such as: the device comprises a face teaching position, a starting position and an ending position, advanced atomization, gluing speed, gluing height, valve opening time, valve closing time, glue spraying mode, teaching mode, firing pin stroke, line spacing and superposition mode.
Determining the gluing speed, the gluing path and the gluing area of the glue valve in the gluing process according to the parameters;
specifically, the obtained parameters are analyzed, the path and the area of the glue valve to be glued are determined according to the set gluing starting position and the set gluing ending position, and the gluing speed of the glue valve in the gluing process is determined.
Judging whether the glue valve moves to the gluing end position set in the parameter;
specifically, whether the glue valve reaches the specified gluing end position after the gluing area is coated according to the determined gluing path is judged.
Stopping gluing after the glue valve reaches a specified end position;
specifically, after the glue valve is moved to a designated glue application end position, the glue application is terminated.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
- The gluing method of the elastic steel plate of the MCS sensor is characterized by comprising the following steps:pretreatment: grinding the surface of the elastic steel plate, cleaning to remove oil stains and impurities on the surface, and finally roughening the gluing surface;setting parameters: setting various parameters and modes of gluing in a software system of a gluing machine;gluing: placing the elastic steel plate on a gluing machine jig, and starting to operate equipment for gluing;placing and self-leveling: placing the elastic steel plate coated with the glue on a clean horizontal plane to enable the glue layer to automatically level;and (3) curing: after the self-leveling of the elastic steel plate adhesive layer is finished, placing the elastic steel plate adhesive layer into an oven for curing;and (3) cooling: and immediately taking out the elastic steel plate after solidification, and placing the elastic steel plate on a heat dissipation plate for cooling.
- 2. The gluing method for the elastic steel plate of the MCS sensor according to claim 1, wherein the elastic steel plate is a 17-4PH elastic stainless steel plate with the specification of 200mm x 100mm x 8mm and the parallelism of 2 wires or less.
- 3. The gluing method for the elastic steel plate of the MCS sensor according to claim 1, wherein the surface of the stainless steel is ground by fine corundum sand, both sides of the stainless steel need to be ground, and the grinding time is not less than 30min; and after the grinding is finished, cleaning the surface of the elastic steel plate by using an industrial detergent to remove oil stains and impurities on the surface.
- 4. The gluing method for the elastic steel plate of the MCS sensor according to claim 1, wherein the glue coating surface is roughened, wherein a roughening solution is prepared by self, the roughening temperature is room temperature, and the roughening time is 12min.
- 5. The gluing method of the elastic steel plate of the MCS sensor according to claim 1, wherein a multi-overlapping spraying mode is adopted, and the increase of the thickness of the glue layer after each gluing and curing is 10-15 μm.
- 6. The gluing method for the elastic steel plate of the MCS sensor according to claim 1, wherein the elastic steel plate is placed on a plane in a clean space after being glued, the glue layer is allowed to self-level, and the leveling time is not less than 10min.
- 7. The gluing method for the elastic steel plate of the MCS sensor according to claim 1, wherein the glue layer on the surface of the elastic steel plate is placed into an oven for curing after the self-leveling is finished, the curing temperature is 105 ℃, and the curing time is 13-15min.
- 8. The gluing method for the elastic steel plate of the MCS sensor according to claim 1, wherein after the elastic steel plate is cooled to room temperature, the thickness of the glue layer is tested by a thickness tester, and the thickness of the glue layer is recorded; and placing the elastic steel plate with the tested thickness on a jig of a glue spreader again, repeating the previous operation for secondary glue spreading until the thickness of the glue layer reaches 80 mu m after curing, and finishing the glue spreading process.
- 9. The gluing method for the elastic steel plate of the MCS sensor according to claim 1, wherein the gluing parameters and the gluing mode of the gluing machine are as follows:the teaching mode comprises the following steps: the following steps of (1) teaching;start and end positions: the starting position and the ending position are two diagonal points on the elastic steel plate respectively;atomizing in advance: 0.1s;gluing speed: 180mm/s-200mm/s;gluing height: 25mm-30mm;valve opening time: 5ms;closing the valve: 5ms;and (3) glue spraying mode: selecting a Spray;teaching mode: byNozle;striker stroke: 3-4 cases;line spacing: 4mm-6mm;and (3) superposition mode: the compression mode is selected.
- The control method for gluing the elastic steel plate of the MCS sensor is characterized by comprising the following steps:acquiring the set gluing parameters;determining the gluing speed, the gluing path and the gluing area of the glue valve in the gluing process according to the parameters;judging whether the glue valve moves to a glue coating end position set in the parameters;and stopping gluing after the glue valve reaches a specified end position.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117225659A (en) * | 2023-11-15 | 2023-12-15 | 江苏永鼎股份有限公司 | Automatic chip process deviation recognition and correction method and system |
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| CN110508449A (en) * | 2019-08-26 | 2019-11-29 | 深圳市道丰宁科技有限公司 | A kind of automatically dropping glue technique of sealing ring |
| CN217043277U (en) * | 2022-03-28 | 2022-07-26 | 中联西北工程设计研究院有限公司 | Flexible gluing production line |
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