7212 results about "Glass sheet" patented technology

The invention relates to the field of glass testing, and discloses a glass plate cold bending test device, which comprises a mounting platform, a cold bending test device, a cold bending test device, a cold bending test device, a cold bending test device and a cold bending test device, and is characterized in that the mounting platform comprises a loading position and at least two diagonally arranged clamping positions; the testing mechanism is arranged at the loading position, a bearing piece of the testing mechanism is used for supporting the plate corner of the to-be-tested glass plate in the descending process of the bearing piece, and a loading assembly is used for applying pressure to the plate corner of the to-be-tested glass plate when the bearing piece is in a non-pressure state; the clamping mechanism is arranged at the clamping position and used for clamping the plate corner of the glass plate to be detected. The problem that the influence of dead weight on glass cold roll forming is ignored in a glass plate test is solved. And by reducing the height of the bearing piece, the deflection of the plate corner is increased under the action of gravity until the bearing piece cannot detect the pressure of the plate corner. The plate corner is subjected to a pressurization test through the loading assembly to complete a plate corner bending test, so that the performance evaluation of the cold-bent glass is more accurate, and the use risk after the cold-bent glass is formed is reduced.

To achieve the above objective, the present invention provides the following technical solution: a handheld magnifier with an adjustable focal length, comprising an upper shell and a lower shell. The upper shell is equipped with a protection plate, a display screen, and a silicone key, while the lower shell contains a PVC film. A battery, a keyboard, a main board, a wave wheel, a sector gear, a lens assembly, and a light board are installed between the upper and lower shells. The lens assembly consists of an FPC cable, a chip, a guide fixing seat, a roller, a lens holder, a lens cover, and a glass sheet. Manual precise focusing is achieved through a mechanical transmission structure consisting of a wave wheel, sector gear, and spiral groove. This structure provides a wide adjustable range of clarity to accommodate observation needs at different distances.

A mobile laser device for processing glass sheets installed in an object, preferably in a vehicle, preferably in a train, or in a structure work, preferably in a building, and the use of the laser device and a method for processing a glass sheet.

The invention relates to the technical field of semiconductors, and discloses a glass-based three-dimensional interconnection structure and a packaging framework based on the glass-based three-dimensional interconnection structure, the glass-based three-dimensional interconnection structure comprises a glass plate core, two opposite sides of the glass plate core are respectively a first surface and a second surface; the front rewiring layer is arranged on the first surface; the back rewiring layer is arranged on the second surface; the glass through hole penetrates through the glass plate core, and a base metal interconnection layer is filled in the glass through hole; the base metal interconnection layer extends to the first surface and is electrically connected with the front rewiring layer; and the base metal interconnection layer extends to the second surface and is electrically connected with the back rewiring layer. According to the technical scheme provided by the invention, the technical effects of vertical integration capability, thermal management efficiency, electromagnetic performance and the like can be remarkably improved in a high-frequency and high-integration scene.

The invention provides a continuous pyrolysis device for processing photovoltaic laminated parts, which comprises a feeding conveyor belt, a pyrolysis device, a decarburization device and a discharging conveyor belt, a first chain conveyor is arranged in the pyrolysis device, a second chain conveyor is arranged in the decarburization device, and a third chain conveyor is arranged in the discharging conveyor belt. The upper end face of the feeding conveying belt, the upper end face of the first chain conveyor, the upper end face of the second chain conveyor and the upper end face of the discharging conveying belt are flush. According to the invention, the pyrolysis of the whole photovoltaic panel laminated piece can be realized, the whole glass plate on the photovoltaic panel can be recycled, and the completeness and cleanliness of the glass plate are ensured. And the transmission speeds of the feeding conveyor belt, the first chain conveyor, the second chain conveyor and the discharging conveyor belt can be controlled through the driving device, operation and control are stable, continuous pyrolysis can be achieved, and simplicity and reliability are achieved.

The invention discloses vacuum glass and a preparation method thereof. The preparation method comprises the following steps: grinding corners on one sides of the back surfaces of two glass sheets to form notches; tempering the two glass sheets, coating the outer edges of the back surfaces of the glass sheets with a first solder, and forming a notch; combining the two glass sheets; sealing the two glass sheets for the first time after the two glass sheets are combined; a getter is placed in the cavities of the two glass sheets through the notches in the sealing frame; sintering the second welding flux to form an inlaying piece and inserting the inlaying piece into the notch, wherein one end of the inlaying piece is arranged towards the cavity; elastic pressurizing devices are mounted on the two glass sheets, and the elastic pressurizing devices elastically abut against the other ends of the inlaying pieces; and sequentially carrying out vacuumizing and secondary sealing on the two glass sheets, so that vacuum is formed in the cavity, and the second welding flux is molten to seal the notch. The invention solves the problem that the solder at the vacuum lower edge part is easy to foam when being heated at high temperature in the existing vacuum glass preparation method.

The invention relates to a photovoltaic module layering device and a control method thereof, and belongs to the field of photovoltaic modules. The photovoltaic module sequentially comprises a glass plate, a first EVA adhesive layer, a silicon plate, a second EVA adhesive layer and a back plate. A first EVA adhesive layer and a second EVA adhesive layer in the photovoltaic module can be melted and softened to a certain extent by irradiating and heating the photovoltaic module, and the first EVA adhesive layer and the second EVA adhesive layer are separated from a glass plate or a silicon plate more easily during cutting and separation, so that the abrasion of a cutter to the glass plate and the silicon plate is reduced; according to the ultrasonic vibration cutter, accurate cutter setting can be achieved through the visual assembly, the vibration frequency and the vibration amplitude of the ultrasonic vibration cutter are adjusted in real time according to the real-time elastic modulus of the first EVA adhesive layer or the second EVA adhesive layer, excessive force application of the ultrasonic vibration cutter is avoided, therefore, accurate cutting precision is kept during cutting, and the integrity of a silicon plate and a glass plate during recycling is greatly improved.

The invention discloses an air curtain laser failure prevention device for an aluminum-lithium alloy, and relates to the technical field of aluminum-lithium alloy ingots. The air curtain laser failure prevention device comprises a glass sheet located right in front of the laser range finder, a glass upper cover plate arranged on the side face, close to the laser range finder, of the glass sheet, a glass lower cover plate arranged on the side face, away from the laser range finder, of the glass sheet and a ventilation pipeline arranged on the side portion of the glass lower cover plate, and the ventilation pipeline is used for outputting inert gas. The side face, away from the laser range finder, of the glass sheet is purged, and an inert gas protection layer is formed. The inert gas is introduced into the ventilation pipeline at one side of the glass lower cover plate below the laser irradiation glass, and the lower part of the glass sheet is continuously purged, so that an inert gas protection air curtain is formed below the glass sheet, dust and the like can be effectively prevented from being attached to the upper glass sheet, the glass is kept clean, the laser failure is prevented, and the service life of the glass sheet is prolonged. And meanwhile, aluminum alloy oxidation of the launder can be reduced or even avoided through introduction of inert gas, and the ingot casting efficiency is improved.

The utility model discloses a spherical latticed shell glass curtain wall construction node which comprises a plurality of glass plate units which are mutually connected to form a sphere, each glass plate unit comprises two glass plate bodies which are mutually connected, and metal hooked edges are fixedly installed on the side end faces of the connecting positions of the two glass plate bodies. The connecting folding groove is used for being fixed to one side of a curtain wall keel; the connecting assembly is used for connecting the metal hooked edge and the connecting folding groove, the connecting assembly comprises a first adapting corner connector and a second adapting corner connector, the first adapting corner connector is fixedly connected to the glass plate body, and the second adapting corner connector is fixedly connected to the connecting folding groove and connected with the first adapting corner connector in a hinged mode. The on-site construction procedure is simple, only the height of the hanging weight needs to be adjusted, nailing is needed, the construction period is shortened, meanwhile, the adapting corner connectors are hinged through hinges and can be adjusted in a self-adaptive mode, the problem that the angles of the triangular glass plate units are inconsistent is solved, and certain popularization value is achieved.

The invention provides a glass core plate of an FCBGA packaging substrate and a manufacturing method of the glass core plate, and the manufacturing method of the glass core plate comprises the following steps: providing a glass plate comprising a first surface and a second surface which are oppositely arranged, and defining at least one of the first surface and the second surface as a functional surface of the glass plate; forming a metal seed layer covering the functional surface of the glass plate, and forming a shielding layer on the surface, away from the glass plate, of the metal seed layer; patterning the shielding layer to form a plurality of first openings exposing the metal seed layer in the shielding layer; conductive circuits filling the first openings are formed, and the shielding layer is removed to obtain second openings located between the two adjacent conductive circuits; and removing the metal seed layer at the bottom of the second opening to obtain the glass core plate. According to the FCBGA packaging substrate, the glass plate which is low in thermal expansion coefficient and high in glass transition temperature is adopted as the core plate of the glass core plate in the FCBGA packaging substrate, warping of the substrate is reduced, and the reliability of the substrate and the yield of products are improved.

The invention relates to a polarization spectrometer, in particular to a pitch-adjustable polarization spectrometer based on cholesteric cellulose chiral liquid crystal. The polarization spectrometer is prepared by adopting the following method: step 1, regulating and controlling the screw pitch of cholesteric cellulose chiral liquid crystal; step 2, preparing a flexible PDMS film; step 3, preparing a patterned PDMS through hole film; 4, treating the surface of the glass sheet; step 5, filling cholesteric cellulose chiral liquid crystals; and step 6, orienting the cholesteric cellulose chiral liquid crystal to obtain the pitch-adjustable polarization spectrometer with the film-shaped patterned cholesteric cellulose chiral liquid crystal. The problems that a traditional small-molecule liquid crystal chiral agent is difficult to regulate and control the screw pitch of the cholesteric phase cellulose chiral liquid crystal and easy to agglomerate can be solved, and simple preparation of the screw pitch-adjustable cholesteric phase cellulose chiral liquid crystal is achieved; and meanwhile, transmission of right-handed circularly polarized light and selective reflection of left-handed circularly polarized light are realized by utilizing the patterned cholesteric cellulose chiral liquid crystal.

The utility model provides photovoltaic module insulating film pasting equipment, and relates to the technical field of photovoltaic module film pasting equipment. The photovoltaic module insulating film pasting equipment comprises a support, a conveying and positioning mechanism, a film supply mechanism and a film distribution mechanism are installed on the support, and the conveying and positioning mechanism is used for moving a glass plate provided with a battery string group to / out of a film pasting position and executing a restoration action on the glass plate located on the film pasting position; in the conveying direction of the conveying and positioning mechanism, the film supply mechanisms are arranged on the two sides of the conveying and positioning mechanism and used for preparing insulating film strips with penetrating areas; and the film distributing mechanism is arranged above the conveying and positioning mechanism and is used for moving the insulating film strip to a target position and attaching the insulating film strip to a preset position of the battery string group. The device is used for executing the film manufacturing and pasting process of an insulating film in the BC assembly machining process, accurate film pasting of an insulating film strip is completed, and the machining quality and machining efficiency of a BC assembly are improved.

The invention provides laminated glass, a manufacturing method thereof and a vehicle. The laminated glass comprises a glass body and a first heating layer. The glass body comprises an outer glass plate, a bonding layer and an inner glass plate which are arranged in a laminated manner, the bonding layer is used for bonding the outer glass plate and the inner glass plate together, and the glass body is provided with a signal transmission area for a signal of a sensor to transmit. The first heating layer is fixedly arranged on the bonding layer, the first heating layer comprises a transparent heating film made of a carbon nanotube material, the orthographic projection of the transparent heating film on the glass body at least covers the signal transmission area, and the transparent heating film is used for generating heat when being electrified. In the laminated glass provided by the invention, at least the transparent heating film covering the signal transmission area is made of the carbon nanotube material, and the appearance is transparent and invisible, so that the influence on the signal transmission rate of the sensor can be reduced or even avoided, and the working effect of the sensor can be improved.

The invention provides laminated glass and a vehicle. The laminated glass comprises a first glass plate, an infrared reflection layer, a bonding layer, a second glass plate and a low-transmittance heat insulation layer, the low-transmittance heat insulation layer comprises at least one absorption function layer, the visible light transmittance TL1 of the laminated glass is smaller than or equal to 15%, and the transmission index A of the laminated glass is larger than or equal to 10; the transmission index A is equal to TL1 / (TE * TL3). According to the laminated glass, the low-transmittance heat insulation layer and the infrared reflection layer are used together, so that the laminated glass has relatively low visible light transmittance TL1 and relatively low radiance e, and a deep colored PVB (Polyvinyl Butyral) membrane in related technologies can be omitted, so that the laminated glass has the effects of low cost, simplicity in manufacturing and production and privacy protection; the laminated glass has a lower total solar transmittance TTS, so that the laminated glass can better block heat, a sunshade curtain in a vehicle is omitted, and a larger height space in the vehicle is obtained.

A vehicle laminated glazing includes a first extraclear glass sheet (exterior glazing), a lamination interlayer and a second glass or plastic sheet (interior glazing) with a traversing hole.

A double-pane glass panel includes: a pair of glass plates facing each other; a peripheral sealing material provided over whole outer edges of the pair of glass plates to form a gap sealed between the pair of glass plates; a plurality of spacing members disposed in the gap; and a gas adsorption material disposed on one surface out of a pair of plate surfaces facing each other via the gap between the pair of glass plates, the gas adsorption material being apart from the other surface out of the pair of plate surfaces. The gas adsorption material includes a zeolite-based nonmetal getter material having a porous structure, and an inorganic binder material connecting the nonmetal getter material.

Disclosed in the present invention is a chip substrate preparation method based on a glass sheet. The chip substrate preparation method comprises the following steps: making the surface of a glass sheet carry an amino, and reacting a coupling reagent having an azide group with the amino on the surface of the glass sheet, so as to form an amide bond. Further disclosed in the present invention is a chip preparation method. On the basis of the chip substrate preparation method, the chip preparation method comprises the following steps: reacting a 5'-end-modified probe with the azide group of the coupling reagent, and combining the probe on the surface of the glass sheet. In the present invention, the glass sheet is used to replace a silicon wafer, thereby reducing the cost of the chip raw material, also ensuring the number and quality of the probes of the chip, and improving the use stability of the chip.

The invention provides vehicle window glass, a vehicle window assembly and a vehicle. The vehicle window glass comprises an information acquisition area; the vehicle window glass further comprises a first glass plate, a second glass plate and a middle layer clamped between the first glass plate and the second glass plate. The vehicle window glass further comprises a first heating element and a second heating element, and the first heating element and the second heating element are both located in the information collection area in the thickness direction of the vehicle window glass. The first heating element is arranged between the first glass plate and the second glass plate, and the second heating element is arranged on the side, back to the middle layer, of the second glass plate. According to the technical scheme provided by the invention, the heating effect of the information acquisition area can be improved, and demisting, defrosting and ice and snow removal can be carried out in time.

The utility model relates to a temperature adjusting device for substrate glass production and a substrate glass production device, and the temperature adjusting device for substrate glass production comprises a layered soaking piece, a heat preservation bracket, a cold air pipe and a heating piece, the layered soaking piece comprises a soaking piece body and a partition plate, a cavity is formed in the soaking piece body, an opening is formed in one side of the soaking piece body, the partition plate divides the cavity into a first soaking cavity and a second soaking cavity in the downward pulling direction of the glass substrate, and the heat preservation support and the opening are installed in a matched mode to seal the layered soaking piece; the cold air pipes and the heating pieces are arranged on the heat preservation support in a penetrating mode so as to be fixed in the first soaking cavity and the second soaking cavity respectively, and an air outlet allowing air to flow out is formed in the cavity wall of the first soaking cavity. According to the temperature adjusting device for substrate glass production, the process temperature of a glass substrate can be accurately adjusted, the problem of temperature non-uniformity in the overflow method production process is solved, optimization and adjustment of quality specifications such as the thickness, the stress and the shape specification of a glass plate are achieved, and the quality and the yield of a finished substrate glass product are improved.

The present application discloses a head-up display glass and a head-up display system. The head-up display glass includes laminated glass and a reflective film layer; the laminated glass includes an outer glass plate, a polymer interlayer, and an inner glass plate; the reflective film layer includes an inner barrier layer, an improvement layer, and at least one laminated structure arranged in a stacked manner. The inner barrier layer can block the damage of alkali metal ions on the glass surface to the improvement layer during the heat treatment process and block the oxidation of the improvement layer caused by the diffusion of oxygen. The improvement layer can further improve the reflectivity of the reflective film layer to P-polarized light while maintaining a low reflectivity of the reflective film layer to visible light, so that when the driver inside the vehicle visually observes the reflective image of the head-up display glass, only the reflective image of the reflective film layer can be observed, thus eliminating the visual ghosting phenomenon; moreover, the reflectivity of the head-up display glass in the present application to visible light is less than or equal to 15%, and no obvious reflection phenomenon can be observed inside the vehicle.

The invention relates to the technical field of measuring devices, in particular to a glass thickness measuring instrument which comprises a workbench, the upper end of the workbench is fixedly connected with a first support, the upper end of the first support is provided with a first motor, and the lower end of the first support is provided with a first detection mechanism used for detecting an arc-shaped curved glass plate in a contact mode. A contact type laser micrometer is installed on the inner side of the first detection mechanism, a second detection mechanism used for non-contact type laser scanning detection of a glass plate is arranged on the inner side of the first detection mechanism, a plurality of sets of anti-reflection laser triangular sensors are arranged on the inner side of the second detection mechanism, and the anti-reflection laser triangular sensors are arranged on the inner side of the second detection mechanism for laser reflection interference caused by an arc-shaped curved surface. The anti-reflection laser triangular sensor is matched with the conical black velvet inner wall of the refraction plate and the 45-degree light barrier array to form an efficient optical trap, scattered light and transmission echoes are thoroughly absorbed, and the device is particularly suitable for high-precision measurement of high-power laser of 100 mW or above under an arc curved surface.

An automotive window laminate structure, including first and second parallel and mutually spaced apart glass sheets and a thermoplastic laminated sheet structure. The laminated sheet structure is placed between the first and second glass sheet, and the laminated sheet structure includes at least one functional layer with an upper and lower surface, at least two bonding layers, with the bonding layers covering the upper and lower surfaces of the functional layer. A portion of the bonding layers extends beyond the perimeter of the functional layer and an encapsulation layer is located between the first and second glass sheet, such that the encapsulation layer extends along the perimeter of the functional layer.

A vacuum insulated glass unit frame assembly includes a rectangular vacuum insulated glass unit having two glass sheets separated by a sealed gap with a plurality of support structures, and a frame arrangement including a fixation system fixating the vacuum insulated glass unit at the frame arrangement, where the fixation system is arranged so as to allow edges of said vacuum insulated glass unit to thermally deflect in a deflection direction perpendicular to a frame opening plane due to a temperature difference between the two glass sheets, where the fixation system is configured so as to allow the magnitude of the thermal deflection to vary along the edge between the corners where the respective edge terminates.

Disclosed in the present application is a disassembly device, comprising a carrying base, and a loading apparatus, a junction box and frame removal apparatus, a glass sheet removal apparatus and a backsheet removal apparatus, which are arranged on the carrying base, wherein the loading apparatus is used for gripping a photovoltaic panel at a loading station; the junction box and frame removal apparatus is arranged downstream of the loading apparatus, and is used for removing a junction box and a frame of the photovoltaic panel conveyed by the loading apparatus; and the glass sheet removal apparatus and the backsheet removal apparatus are both arranged downstream of the junction box and frame removal apparatus, the glass sheet removal apparatus is used for removing a glass sheet of the photovoltaic panel, and the backsheet removal apparatus is used for removing a backsheet of the photovoltaic panel.

The utility model discloses a CH4 gas detector of an optical device, relates to the field of gas detection of optical devices, and provides the following scheme aiming at the problem that in the existing practical application, a packaged 2.0 mm window flat window pipe cap is not particularly ideal in product performance index when being used by a client, the CH4 gas detector comprises a pipe seat, a ceramic gasket is connected with the middle part of the upper end of the pipe seat, and the upper end of the ceramic gasket is provided with a hollow cavity; a ceramic gasket is arranged in the tube base, the ceramic gasket is of a detachable adjusting structure, a chip is connected to the upper end of the ceramic gasket, a coated glass sheet is connected to the outer side of the chip, a tube shell is connected to the outer end of the coated glass sheet and the four sides of the upper portion of the tube base, and a mm light-transmitting window is formed in the middle of the upper end of the tube shell. According to the utility model, the structure is novel, the sensitivity and accuracy of the detector are improved by adjusting the thickness of the ceramic gasket and controlling the height from the photosensitive surface of the chip to the glass surface, and the optical performance of the detector is improved by matching with the 3.0 mm light-transmitting window arranged at the middle part of the upper end of the tube shell.

The utility model discloses an ultra-thin glass cutting device, and relates to the technical field of glass production. The ultra-thin glass cutting device comprises a cutting base table, a transfer assembly and a connection assembly, bearing blocks and connection grooves are alternately arranged on the cutting base table in the width direction of the cutting base table, and the upper surfaces of the multiple bearing blocks are equal in height to form a bearing face; the transfer assembly is connected with the cutting base station and is used for transferring the glass plate between the transfer trolley and the cutting base station; the connection assembly comprises a connection frame, the connection frame is movably arranged on the transfer assembly and comprises a plurality of connection pieces arranged at intervals in the width direction of the transfer assembly, and the connection pieces are matched with the connection grooves; the connection assembly can reciprocate in the transfer direction relative to the transfer assembly and can reciprocate in the direction perpendicular to the transfer surface of the transfer assembly relative to the transfer assembly so that the glass plate can be transferred between the transfer assembly and the bearing face in a reciprocating mode.

Provided is a glass having a low dielectric loss tangent in a high-frequency region and excellent chemical resistance and moisture resistance. A glass having, in mol% on the basis of oxides, 68% or more of SiO2, 0.1-8% of Al2O3, 88% or more of [SiO2] + [B2O3], 27% or less of [B2O3]-([RO] + [R2O]-[Al2O3]), a relative dielectric constant of 4.5 or less at 25 DEG C and a frequency of 10 GHz, a dielectric loss tangent of 0.005 or less at 25 DEG C and a frequency of 10 GHz, [Delta] Abs-OH of 4.0 or less, 0.1-4% of SrO, a total content (RO) of MgO, CaO, SrO and BaO of more than 0% and 6% or less, and a total content (R2O) of Li2O, Na2O and K2O of 0-1%, [Al2O3]-[RO] is-3% or more and less than 8%, [Al2O3] * [RO] is greater than 0 and 30 or less, [MgO] + [CaO] is 0.1-5.9%, and [MgO] / ([MgO] + [Al2O3]) is 0-0.45.

The invention relates to the field of photovoltaic manufacturing, in particular to a stitch welding machine and a welding method. A conveying mechanism of the stitch welding machine is used for bearing a photovoltaic panel, a welding platform is provided with a welding station used for supporting and welding a battery piece welding strip and a bus bar, and the welding platform responds to control of a controller to weld the battery piece welding strip and the bus bar; and the carrying mechanism is at least partially arranged above the conveying mechanism, and the carrying mechanism is used for separating the battery piece from the glass plate, carrying the battery piece to the welding platform, enabling a welding strip of the battery piece to be in contact with the bus bar, and carrying the welded battery piece to the conveying mechanism to be combined with the glass plate. According to the stitch welding machine, the battery piece and the glass plate can be separated, the welded battery piece and the glass plate are combined, manual separation and combination operation on the battery piece and the glass plate is not needed, the labor cost is reduced, one-stop operation of battery piece machining is achieved, the intelligent degree is high, and the production efficiency of the battery piece is effectively improved.

The invention discloses an automatic laser welding production line for plastic cell panels. The automatic laser welding production line comprises a line body, a black plate feeding assembly, a white plate feeding assembly and a laser welding assembly. A plurality of tool plates are sequentially arranged on the line body in the conveying direction. Each tool plate comprises a bottom plate, a material limiting plate and a vacuum adsorption plate; the laser welding assembly is arranged on a laser welding station and comprises a bottom plate jacking mechanism, a vacuum adsorption plate jacking mechanism, a pressing welding assembly and a plastic plate welding positioning mechanism. The plastic plate welding positioning mechanism can position the white plastic plate and the black plastic plate which are positioned at the laser welding station; the pressing welding assembly comprises a transparent glass plate and a laser welding gun. The transparent glass plate is located over the laser welding station, and the height position of the transparent glass plate is kept unchanged. The laser welding gun is located above the transparent glass plate and can move in a two-dimensional mode according to a set welding path. The position of the welding part can be accurately guaranteed, and therefore the quality and welding efficiency of the finished welding part are improved.

The invention provides glass edge grinding equipment. The glass edge grinding equipment comprises a rolling supporting platform, a grinding device and a limiting device. The rolling support platform is used for rolling and supporting a glass plate, and the distance between a polished part and a human body standing position can be adjusted by adjusting deformation; the limiting device is used for supporting one side of the polished edge of the glass plate in a rolling manner; a grinding disc of the grinding device penetrates out of the position between the two supporting assemblies of the limiting device. A grinding groove is formed in the side wall of the grinding disc, is in a closed-loop shape around the axis of the grinding disc and is of a V-shaped groove structure; the limiting device can change the relative protruding range of the grinding disc by adjusting the position of the supporting assembly. The grinding device can vertically move through adjustment, so that the grinding disc is matched with the bearing plane of the rolling support platform; the limiting device vertically moves along with the grinding device; parameters can be automatically adjusted according to grinding requirements, use and operation are convenient, and the adjusting accuracy is high. And the size of the workbench can be adjusted according to requirements, a more suitable working station is provided, and operation is convenient.