1027results about "Controlling lamination" patented technology

The invention provides a forming method of a honeycomb sandwich structure based on allowance compensation, and belongs to the technical field of composite material connection. The forming method comprises the following steps: providing a cured first skin, a cured second skin and two layers of adhesive films, and obtaining the thickness of a single layer of adhesive film; the target height of a honeycomb core in the honeycomb sandwich structure is obtained, and the design height of the honeycomb core to be formed is determined based on the target height and the allowance compensation amount; providing the honeycomb core and a second packaging assembly according to the design height of the honeycomb core to be formed, and packaging according to a second packaging method to obtain a packaging piece to be cured; and placing the to-be-cured packaging piece in an autoclave, and performing curing according to a curing process to obtain the honeycomb sandwich structure. According to the method, the permanent shrinkage deformation amount of the honeycomb sandwich structure is compensated by compensating the honeycomb core, and the allowance compensation amount of the honeycomb core can be predicted through a formula, so that the accurate control of the compensation allowance of the honeycomb core is realized, and the geometric accuracy of the honeycomb sandwich structure meets the industrial standard requirement.

Examples include a machine for producing a multi-layer product having a dry film applied to a carrier substrate. A carrier substrate web is provided to an application stage where a first dry film of powdered material is applied to a side of the carrier substrate. The carrier substrate web having the dry film on at least one side is then fed to a product winder to produce a product roll. A dancer roller and / or a positively driven draw roller are arranged between a location where the carrier substrate web unwound from a reel and an entry into an application gap of the application stage, and / or a dancer roller and / or a positively driven draw roller are arranged between where the substrate emerges from a last application gap of the application stage and a location at which the winding of the carrier substrate web onto the product roll takes place.

A method is provided for manufacturing flooring planks including a plastic base and an image plastic layer. The method includes a feeding step of feeding a layered raw material of a long decorative material to be rolled into oppositely rolling rollers; and a rolling step of hot rolling an embossing on the transparent plastic layer. A feeding tension of a printed plastic layer is adjusted according to a longitudinal deviation between the embossing and the pattern in the rolling step. The device includes a first feeding device, a second feeding device, the oppositely rolling rollers, a detecting device, and a tension controller disposed on the second feeding device. According to the long decorative material with the embossing in register with the pattern manufactured by the method, the embossing hot-rolled on the transparent plastic layer is in register with the pattern on the printed plastic layer.

A method of detecting defects in a composite layup includes capturing, using an infrared camera, reference images of a reference layup being laid up by a reference layup head. The method also includes manually reviewing the reference images for defects, and generating reference defect masks indicating defects in the reference images. The method further includes training, using the reference images and reference defect masks, a neural network, creating a machine learning model that, given a production image as input, outputs a production defect mask indicating the defect location and the defect type of each defect. The method also includes capturing, using an infrared camera, production images of a production layup being laid up by the production layup head, and applying the model to the production images to automatically generate a production defect masks indicating each defect in the production images.

The utility model relates to the field of badge machine application, in particular to a full-automatic tinplate badge device which comprises a machine frame, a rotating disc mechanism is arranged on the machine frame, an upper cover mold and a lower cover mold are placed on the rotating disc mechanism, an upper cover feeding assembly and a lower cover feeding assembly are arranged on the peripheral side of the rotating disc mechanism, an upper film grabbing mechanism and a lower film grabbing mechanism are further arranged on the peripheral side of the rotary disc mechanism, an upper film CCD visual recognition system and an upper film dislocation correction mechanism are further arranged on one side of the upper film grabbing mechanism, and an upper film is attached to an upper cover after being corrected through the arrangement of the upper film CCD visual recognition system and the upper film dislocation correction mechanism. The position of the lower film is prevented from being affected by correction after the upper film is attached to the upper cover, and the matching consistency of the upper film and the lower film is guaranteed.

The invention relates to a lamination forming process of high-strength laminated glass applied to the related technical field of lamination, through the arrangement of two opposite columns, the levelness of a laminated board can be detected before lamination, so that the situation that the laminated board with poor levelness is laminated is effectively avoided, and the production efficiency is improved. By arranging the bubble sensing unit, uniform lamination in the laminated glass production process is effectively guaranteed, the quality of the laminated glass after lamination is effectively guaranteed, the situation that the thickness of a glue layer is not uniform is avoided, meanwhile, the damage rate of the glass in the lamination process caused by non-uniform lamination is also effectively avoided, and meanwhile, due to the arrangement of the bubble sensing unit, the production efficiency is improved. Compared with the prior art in which visual detection is performed after lamination, the bubble detection can be performed in the lamination process, so that real-time adjustment can be performed according to the detection result, the bubbles are effectively eliminated, the finished product is higher in quality and strength and is not easy to crack due to the bubbles in the subsequent process, and compared with the mode of performing visual detection after lamination in the prior art, the defect rate is greatly reduced, and the cost input is reduced.

A method is provided for manufacturing flooring planks including a plastic base and an image plastic layer. The method includes a feeding step of feeding a plastic layer into oppositely rolling rollers; and a rolling step of hot rolling an embossing on the plastic layer. A feeding tension of the plastic layer is adjusted according to a longitudinal deviation between the embossing and the pattern in the rolling step. A device includes a first feeding device, an oppositely rolling rollers control device, a detecting device, and a tension controller disposed on the first feeding device. The method, the device and the long plastic layer with the embossing in register with the pattern processed use the method, implement the embossing rolled on the plastic layer in register with the pattern on the plastic layer and have high production efficiency, low cost and less energy consumption.

The present invention relates to a process for preparing multi-material laminates for printed circuit boards that envisages the formation of a stack of plastic laminates, indicated below as "packages", separated by plates of electrically insulating material, and the heating of the stack in the presence of at least two temperature detectors that allow the uniformity of the temperature to be obtained along the whole stack, and a system for producing said laminates.

The utility model discloses a high-elasticity material tension-free compound system, and belongs to the field of elastic cloth compound processing. The feeding mechanism is arranged to unwind the elastic material roll; a plurality of tensioning rollers are arranged in a conveying path of the elastic strip for supporting, and the tension of the elastic strip is subjected to hierarchical control through a tension control assembly; the control assembly is configured to comprise a traction roller set and a tension controller, a plurality of conveying sections are formed in the conveying path, and segmented tension-free adjustment is conducted on each conveying section through the control assembly, so that the tension of the finally output elastic strip tends to be in a tension-free state, and tension-free compounding is conducted on the finally output elastic strip and the non-elastic sheet. According to the invention, tension-free compounding of an elastic material and a non-elastic material can be realized, the flatness requirement of the compounded material is met, the production speed can be adjusted as required, and the production efficiency is improved.

An apparatus having a first treatment module and a second treatment module, at least one of which includes a welding device for treating one or more workpieces. The apparatus has a controller arranged to: receive a real-time amplitude signal of ultrasonic vibration of at least one of the first treatment module and the second treatment module during a treatment cycle; segment the amplitude signal into a plurality of amplitude segments for the treatment cycle; monitor an amplitude value of each of the plurality of amplitude segments during the treatment cycle; operate a plurality of closed-loop control algorithms to determine a plurality of amplitude adjustment values, each of the plurality of amplitude adjustment values corresponding to a respective one of the plurality of amplitude segments; and apply each amplitude adjustment value to the corresponding respective one of the plurality of amplitude segments during the subsequent treatment cycle in real-time.

The invention relates to the technical field of pressure regulation and control, and discloses a multi-section pressure regulation and control device in a plate pressing process, the multi-section pressure regulation and control device comprises a supporting and positioning mechanism, the middle position of the supporting and positioning mechanism is connected with a multi-section pressure regulation mechanism, and the supporting and positioning mechanism comprises a supporting and positioning base; through a precise meshing mechanism of the first adjusting rack, the second adjusting rack and the adjusting gear, cooperative work of the first hot-pressing frame and the second hot-pressing frame is achieved, and bidirectional uniform pressing is conducted on multiple layers of plates in the multi-section pressure adjusting and controlling process; in the high-pressure stage, the two hot-pressing frames act at the same time, so that the interior of the plate is in a bidirectional uniform compression state, the bending or warping phenomenon of the plate is effectively reduced, and the interlayer bonding strength and flatness of the plate are remarkably improved; the two-way pressing mode not only reduces rework and rejection rate caused by deformation or infirm combination of the plate, but also promotes sufficient filling of the adhesive through uniform stress distribution, and further enhances the overall performance of the plate.

The utility model belongs to the technical field of pole piece manufacturing, and discloses a thermal composite pole piece adjusting mechanism which comprises a feeding assembly, a deviation rectifying assembly and a visual identification assembly, the feeding assembly comprises a feeding table, the discharging end of the feeding table is arranged towards a feeding material belt, and the feeding material belt comprises a diaphragm belt and a first pole piece arranged in the diaphragm belt; the deviation rectifying assembly is in transmission connection with the feeding table and comprises a first deviation rectifying component used for adjusting the adjusting position of the second pole piece in the X direction, a second deviation rectifying component used for adjusting the adjusting position of the second pole piece in the Y direction and a third deviation rectifying component used for adjusting the adjusting position of the second pole piece in the Y direction, and the second deviation rectifying component and the third deviation rectifying component are sequentially arranged in the X direction. The X direction is parallel to the conveying direction of the second pole piece, and the Y direction and the X direction are perpendicular and located in the same plane; the visual recognition assembly is arranged towards the feeding table and conducts visual recognition on the second pole piece on the feeding table. The utility model also discloses a pole piece thermal compounding device, which can realize timely piece feeding alignment degree detection and calibration.

The utility model discloses cellular board forming equipment, which belongs to the technical field of cellular board processing, and comprises a base and support rods arranged on the periphery of the base, the top ends of the support rods are fixedly connected with a support plate, the support plate is provided with a lifting mechanism, the lower surface of the lifting mechanism is fixedly connected with a pressing block through an installation assembly, and the pressing block is fixedly connected with the base. Through cooperation of the lifting mechanism and the clamping mechanism, stacked honeycomb plates bonded through glue can be clamped and positioned, then the lifting mechanism drives the pressing block to press the plates, and a worker can control the lifting mechanism to apply pressure to the plates through cooperation of a pressure sensor and an alarm; according to the honeycomb plate forming equipment, the plates are pressed more firmly and closely, the honeycomb plate machining and forming speed of the forming equipment is increased, the honeycomb plate machining efficiency is improved, meanwhile, the formed honeycomb plates can be pushed out rapidly through the arranged moving assembly, and workers can transfer the honeycomb plates conveniently.

The invention discloses continuous production equipment for antibacterial composite fabric and a composite forming method, the continuous production equipment comprises a fabric pretreatment unit, an antibacterial composite unit, a shaping and strengthening unit and a rolling unit which are connected in sequence, and each unit realizes continuous fabric conveying through a conveying assembly; the fabric pretreatment unit comprises a pretreatment bin, dust removal modules, a tension adjusting roller set and a base material flattening mechanism are sequentially arranged in the pretreatment bin in the fabric conveying direction, and the dust removal modules are high-pressure airflow spray heads symmetrically distributed on the upper side and the lower side of fabric. The base material flattening mechanism comprises two flattening scrapers capable of moving in the width direction of the fabric, and flexible rubber layers are arranged at the ends of the flattening scrapers. By integrating continuous production equipment and an optimized composite forming process, efficient and stable production of the antibacterial composite fabric is achieved, the product has excellent antibacterial performance, mechanical performance and functional diversity, the production process is environmentally friendly and controllable, and certain application value is achieved.

The invention discloses a multi-layer cloth hot-pressing bonding process for a waterproof layer of a backpack, and relates to the technical field of hot-pressing equipment, the multi-layer cloth hot-pressing bonding process comprises a hot press main body, a rear table, a guide roller table, a gluing assembly and a hot-pressing assembly, and precise positioning and calibration of multiple waterproof material laminations are achieved through the guide roller table and a deviation rectifying assembly; the bag body is automatically extruded by utilizing material tension during layering, so that accurate control and uniform coating of the adhesive are realized; an electromagnetically-driven partition heating plate is adopted for local fine adjustment of pressure and temperature, and hot pressing uniformity and bonding strength of complex shapes are ensured; and finally, an ultrasonic detection system is integrated, coupling agent spraying is matched for online scanning of the hot-pressed waterproof material, defects such as bubbles, debonding and foreign matter are recognized, positioned and recorded in real time, and closed-loop quality control is formed.

A system moves items, like containers and / or pallets, through a label printing station. The station has a label printer that prints adhesive labels; and a robot arm terminating at a movable end with a suction pad or vacuum device and sensors. The station has sensors configured to measure a height of the item; and a processor coupled to receive the height of the item, to control the robot arm and label printer, and to receive label information from a server. The processor has a memory containing code that computes desired label positions based on height of the container / pallet. A method of labeling an item includes printing an adhesive label with the label information obtained from a server; receiving the adhesive label on a suction pad or vacuum device attached to a movable end of a robot arm, and determining a first labeling position from measured height of the container / pallet.

The invention relates to the technical field of jute layered product preparation, in particular to an S-shaped jute fiber three-dimensional structure and a preparation method thereof.The method comprises the steps that a jute fiber felt layer and a hot melting polyester fiber felt layer are obtained based on a jute fiber raw material bag and a hot melting polyester fiber raw material bag of a finished product; the jute fiber felt layers and the hot melting polyester fiber felt layers are sequentially stacked in a crossed mode, and jute layered product fiber stacks are obtained and marked as fiber stacks; placing the fiber stack in a mold for hot press molding; collecting the pressure of each preset position of the bottom of the fiber stack at each moment; collecting a visual image of the fiber stack at each moment; determining the hot-pressing inclination deviation of the fiber stack at each moment; obtaining the connection compactness of the fiber stack at each moment; the step length of pressure adjustment in the pressurization stage is corrected, and the pressure value of the pressurization stage at the next moment of the current moment is determined; demolding after hot press molding is finished, and naturally cooling to room temperature to obtain a jute layered product. Therefore, the mechanical property of the jute layered product is improved.

The invention relates to the technical field of composite materials, in particular to a dry fiber band compounding device and method.The dry fiber band compounding device comprises a fiber band unwinding and winding mechanism and a fiber band winding mechanism, and the fiber band unwinding and winding mechanism comprises a fiber band unwinding assembly and a fiber band winding assembly; the powder spreading mechanism uniformly spreads powder towards the direction of the fiber belt; the two felt unwinding mechanisms are used for conveying felt materials to the upper layer of the fiber belt and the upper layer of the powder; the two release paper unwinding and winding mechanisms comprise a release paper unwinding assembly and a release paper winding assembly; the heating and pressurizing mechanism comprises a heating roller group and a cooling roller group, and is used for heating and applying pressure to the fiber belt, the powder and the felt between the two pieces of release paper; the hole pricking mechanism comprises needle rollers which can be relatively close to or far away from each other towards the fiber belt, and pointed needles are arranged on the needle rollers. According to the invention, through high coordination of powder sprinkling, heating and punching, roller gaps and applied pressure in the compounding process are accurately controlled, so that the compactness of a dry fiber belt is moderate, the permeability of a material in vacuum infusion is improved, and the high-quality mechanical property and application effect of a finished product are ensured.

The invention provides a preparation method of a perforated UHPC board fireproof, high-temperature-resistant, waterproof and moisture-proof strong sound absorption composite material, and belongs to the technical field of UHPC boards. An optimal perforation parameter combination is calculated through a two-layer nested optimization function system; preparing UHPC slurry and adding polypropylene fibers for toughening; carrying out pouring molding by adopting a vacuum vibration process and carrying out steam curing; performing precise perforation according to the optimized parameters; the basalt fiber cloth is adhered to the back surface to enhance the low and medium frequency sound absorption performance; the surface is coated with nano silicon dioxide sol to form a waterproof and moistureproof protection layer; performing acoustic performance evaluation to ensure that the medium-frequency sound absorption coefficient is greater than or equal to 0.7 and the high frequency is greater than or A fireproof performance test is carried out to ensure that an A-grade fireproof grade and a 2-hour fire endurance are reached; finally, performing a waterproof and moisture-proof performance test to ensure the water absorption rate lt; and 50 times of damp-heat circulation can be resisted. The optimal parameters comprise common perforation UHPC: the hole diameter is 5mm, the distance between the circle centers of two holes is 12mm, and the perforation rate is 13%; the method realizes organic unification of sound absorption performance and special environment adaptability.

A microneedle patch base layer lamination and separation device and a control method therefor, a microneedle patch base layer lamination device and a control method therefor, and a microneedle patch demolding and separation device and a control method therefor are provided. The microneedle patch base layer lamination and separation device includes a rack, a movement control mechanism, a movable seat, and a lamination and separation apparatus. The lamination and separation apparatus is arranged on the movable seat, a carrier is supported on the rack, and the movement control mechanism may control the movable seat and / or the carrier to move in a vertical direction and a horizontal direction; the lamination and separation apparatus includes a rotation control mechanism, a rotary table, an elastic pressing head, and an elastic vacuum suction cup.

Embodiments of the present disclosure provide an automatic production line for gluing and laminating, a method, a system and medium for gluing and laminating. The automatic production line includes at least one production line unit and a central control processor. The at least one production line unit includes a gluing unit, a laminating unit, a baking unit, a pressing unit, or an image acquisition unit. The central control processor is configured to: determine, based on an image data set, gluing quality data, wherein the image data set includes an original image data set and a gluing image data set; determine, based on the gluing quality data, at least one control parameter; generate, based on the at least one control parameter, a control instruction, and send the control instruction to the at least one production line unit to perform a production control.

An apparatus for applying a label to a spool or reel containing wire and a wire tail extending from the spool or reel, the apparatus comprising a wire tail sensor, wherein the wire tail sensor identifies the location of the wire tail protruding from the spool or reel and a label application mechanism, wherein the labeling mechanism applies a label to the spool or reel and wherein the label does not contact the wire tail protruding from the spool or reel.

A printer with a laminating function, which is applied with a laminating plastic film, includes: a printer body having a printing passageway, a paper feeding port communicating with the printing passageway, and a paper feeding tray and a paper feeding wheel set; the laminating plastic film is conveyed to the printing passageway by passing the paper feeding tray and the paper feeding port; a pressurizing and heating module disposed in the printing passageway to heat and laminate the laminating plastic film; a plastic film sensor generating a plastic film signal when sensing the laminating plastic film; a process unit electrically connected to the pressurizing and heating module and the plastic film sensor; the process unit controls a heating temperature and a laminating pressure of the pressurizing and heating module after receiving the plastic film signal.

An adhesive-tape affixing apparatus and an adhesive-tape affixing method, which belong to the technical field of battery production. A material bin assembly (2) for storing adhesive tape is provided on a frame (1). A first positioning assembly (3) is disposed on the material bin assembly (2), and at least partially moves relative to the material bin assembly (2) for positioning adhesive tape (100). A material pick-up assembly (4) disposed on the frame (1) has a pick-up part (41) for picking up the adhesive tape (100) which is placed in the material bin assembly (2). A paper tearing assembly (5) disposed on the frame (1) is used for removing release paper (101) from the adhesive tape (100). A material preparation platform (6) connected to the frame (1) is used for bearing the adhesive tape (100) from which the release paper has been removed, and the pick-up part (41) can reciprocate between the material bin assembly (2), the paper tearing assembly (5) and the material preparation platform (6). A second positioning assembly (7) is disposed on the material preparation platform (6), and at least partially moves relative to the material preparation platform (6) for positioning the adhesive tape (100). A laying and affixing assembly (8) disposed on the frame (1) is used for picking up the adhesive tape (100) on the material preparation platform (6) for laying and affixing. The first positioning assembly (3) and the second positioning assembly (7) are moved to adapt to the adhesive tape (100) of different sizes and specifications, enabling the adhesive-tape affixing apparatus and the adhesive-tape affixing method to accommodate the adhesive tape (100) of different sizes and specifications.

An alignment device for aligning laminating sheets in a corrugated cardboard laminator may include, one after another along a transport path of the laminating sheets in a forward feeding direction: a first transport unit configured to transport the laminating sheets at transport speed; a first acceleration unit configured to increase the transport speed of the laminating sheets; and a second transport unit. The second transport unit may include at least one first movable abutting element transverse to the forward feeding direction of the laminating sheets and configured to align the laminating sheets.

To provide a thickness measuring device capable of precisely measuring the thickness of a functional sheet of a coating film formed on a carrier sheet, and a manufacturing device and a manufacturing method of a ceramic green sheet utilizing the thickness measuring device.SOLUTION: A thickness measuring device 1 for measuring the thickness of a coating film 20 formed on a conveyed carrier sheet 10 includes: a first measurement section 1A for acquiring thickness information of the carrier sheet 10 before formation of the coating film 20 by applying light, and acquiring a first position; a second measurement section 1B for acquiring thickness information of the carrier sheet 10 and the coating film 20 after formation of the coating film 20 by applying radiations, and acquiring a second position; and an arithmetic processing section for calculating the thickness of the coating film on the basis of the thickness information of the carrier sheet of the first position and the thickness information in the second position.SELECTED DRAWING: Figure 1

The present invention relates to the technical field of packaging materials, and discloses an antistatic composite packaging material and a preparation process thereof, the antistatic composite packaging material comprises: a base material layer, the base material layer is made of a polyester film or a hard paperboard material, and the base material layer is used as the bottommost layer of the composite material; the metal oxide static electricity absorption layer is made of aluminum oxide or an oxidation material; the metal foil layer is made of an aluminum foil material; a polyurethane protective film is adopted as the outer layer protective film; and the surface antistatic coating is made of a polytetrafluoroethylene material. Through the multi-layer structure design, the metal oxide static electricity absorbing layer (such as aluminum oxide or titanium oxide) and the metal foil conducting layer are adopted, and the long-acting antistatic effect is provided. By means of the design, the problems that a traditional antistatic coating is prone to abrasion and the efficacy is decreased progressively are solved, it is ensured that the material can still keep stable antistatic performance after being used for a long time, and the material is especially suitable for products needing to be stored and transported for a long time.

The invention provides a new energy automobile electric drive control circuit board production monitoring method and device, computer equipment and a storage medium. The production monitoring method for the electric drive control circuit board of the new energy automobile comprises the following steps: acquiring a dielectric layer lamination state parameter of a high-density interconnection circuit board; performing lamination adjustment processing on the dielectric layer lamination state parameter and a preset lamination state parameter to obtain a dielectric lamination adjustment amount; and according to the medium pressing adjustment amount, a medium pressing early warning on-off signal is sent to a circuit board pressing upper computer. According to the method, the current in-board dielectric layer lamination condition of the high-density interconnection circuit board is determined, and then the dielectric layer lamination state parameters are compared with the standard dielectric layer lamination parameters, so that the difference between the current in-board dielectric layer lamination condition of the high-density interconnection circuit board and the standard in-board dielectric layer lamination condition is conveniently determined; and finally, optimizing and adjusting the pressing working mode of the circuit board pressing upper computer according to the difference value.

The invention provides a replaceable phase-change temperature-adjusting modular composite color steel sandwich panel and a preparation method thereof.The replaceable phase-change temperature-adjusting modular composite color steel sandwich panel is characterized in that phase-change heat preservation blankets, substrates and heat conduction adjusting layers of different specifications are adopted, and the phase-change heat preservation blankets of different specifications are distinguished according to different phase-change temperature ranges; the base plate comprises an upper surface layer color steel plate, a core material and a lower surface layer color steel plate, and a heat conduction adjusting layer is evenly distributed on the outer surface of the upper surface layer color steel plate. The phase change heat preservation blanket is installed on the outer surface of the heat conduction adjusting layer in a magnetic attraction positioning and sliding groove clamping and embedding mode. A plurality of heat conduction pieces are arranged on the side, facing the heat conduction adjusting layer, of the phase change heat preservation blanket, and an RFID tag is arranged on the side, away from the heat conduction adjusting layer, of the phase change heat preservation blanket. By means of the split design of the phase change heat preservation blanket and the base plate, the phase change heat preservation blanket suitable for the environment temperature can be replaced according to the environment temperature change, and seasonal heat management is achieved.

The invention relates to a solar photovoltaic module glue-plate-free laminating machine structure and a laminating method applied to the related field of the laminating technology, through the arrangement of a corrugated pipe assembly and a lower pressing plate, a glue plate in the prior art can be replaced, the solar photovoltaic module can be laminated under the glue-plate-free condition, and the production efficiency is improved. A series of problems of cost, lamination quality and the like caused by easy loss of the rubber plate are effectively avoided, in addition, the inclination detection assembly is arranged in a matched mode, whether the lower pressing plate is inclined or not can be monitored before lamination, the situation that the lower pressing plate is inclined due to accumulative errors generated by abrasion of the guide shaft can be conveniently found in time, the uniformity of lamination is effectively guaranteed, and the production efficiency is improved. The two glass plates in the to-be-pressed photovoltaic module are monitored in real time during lamination, so that the whole lamination process is effectively ensured to be stably carried out, the situation of relative displacement of the two glass plates is found in time, the situation that batch products are scrapped due to relative displacement is not easy to occur, and the yield is effectively ensured.