99 results about "Transparent adhesive tape" patented technology

The utility model discloses an upward deep hole mixed loading emulsion explosive falling prevention device, which belongs to the technical field of mine blasting and comprises a plastic cover and a blocking cylinder, the plastic cover is fixed at the top of the blocking cylinder through transparent adhesive tape, the top of the blocking cylinder is open, and the bottom of the blocking cylinder is vertically cut into a plurality of petals and unfolded outwards to be supported on the inner wall of a blast hole. A filling cavity is formed between the periphery of the blocking barrel and the inner wall of the blast hole, the top of the plastic cover and the filling cavity are filled with jute bags, and the mixed emulsion explosive cannot fall out of the blast hole through upward friction force generated by the bottom of the blocking barrel and the inner wall of the blast hole. The mixed emulsion explosive is supported through friction force between the bottom of the blocking barrel and the inner wall of the blast hole, and the top of the plastic cover and a filling cavity between the blocking barrel and the blast hole are filled with the jute bag, so that the mixed emulsion explosive is further prevented from falling out of the blast hole.

The rewinding machine feeding device for transparent adhesive tape production comprises a connecting frame, a fixing plate is arranged at the top of the connecting frame, a driving motor is fixedly connected to the back of the fixing plate, a discharging roller is fixedly connected to the output end of the driving motor, and first guide sliding grooves which are symmetrically distributed are formed in the fixing plate; connecting sliding blocks are slidably connected into the first guiding sliding grooves, tensioning rollers are rotatably connected to the front faces of the connecting sliding blocks, a mounting plate is fixedly connected to the backs of the two connecting sliding blocks jointly, a connecting block is fixedly connected to the center of the bottom of the mounting plate, a bearing plate is fixedly connected to the back of the fixing plate, and a second guiding sliding groove is formed in the top of the bearing plate; a push block is slidably connected into the second guide sliding groove, a transmission plate is hinged to the push block, and the end, away from the push block, of the transmission plate is hinged to the connecting block. The height position of the tensioning roller can be automatically adjusted, so that the adhesive tape has good tensioning force during conveying, operation is easy and convenient, time and labor are saved, and meanwhile the working efficiency is improved.

The utility model relates to the technical field of transparent adhesive tape production, in particular to a slitting device with a guide mechanism for transparent adhesive tape production, which comprises a base, a stepping motor is mounted at one end of one side of the top of the base through a mounting seat, and a transparent adhesive tape winding roller is arranged on one side of the stepping motor. A guide groove is formed in the top, located at one end of the transparent adhesive tape winding roller, of the base, a guide opening is formed in the guide groove, and a cutting knife is fixed to the end, located at the guide groove, of the top of the base. The cutting guide device has the function of guiding cutting conveniently, the phenomenon that the transparent adhesive tape is bent in the moving process can be avoided, then the transparent adhesive tape can be prevented from being broken, the cutting effect is improved, and the cutting guide device is suitable for being widely used and popularized.

The present application relates to a kind of convenient bundling machine, belong to packing industry equipment technical field, convenient bundling machine, including base, film winding mechanism, rotating arm, handle, pulley, fixed arm, semicircle tooth, material plate, fixed frame and transparent adhesive tape stretching cutting mechanism, the base is equipped with film winding mechanism, the base is fixedly connected with fixed arm, the fixed arm is rotatably connected with rotating arm, the rotating arm upper end is fixedly connected with handle, the rotating arm is rotatably connected with multiple pulleys, the rotating arm is fixedly connected with semicircle tooth, the rotating arm is matched with film winding mechanism by semicircle tooth, the fixed arm is equipped with fixed frame, the fixed frame is equipped with material plate, the base upper side is equipped with transparent adhesive tape stretching cutting mechanism away from film winding mechanism one end.The present application can effectively save the bundling time of packaging process and improve efficiency, save labor cost and consumable cost with economic practicality high.

The utility model discloses a transparent adhesive tape forming processing residual adhesive scraping device which comprises a main body frame, a main driving motor is fixedly installed at the top of the rear end of the main body frame, and a transmission shaft part at the lower end of the main driving motor penetrates through the top of the rear end of the main body frame and is fixedly provided with an adjusting lead screw. The outer curved surface of the middle of the adjusting lead screw is in threaded connection with a lead screw nut, a U-shaped table is fixedly installed at the front end of the lead screw nut, limiting sliding buckles are fixedly installed on the two sides of the rear end of the U-shaped table, limiting sliding rails are movably connected to the rear ends of the limiting sliding buckles in a limiting and attaching mode, and a swing table is rotationally connected to the inner side of the middle of the U-shaped table through a pin shaft. Arc-shaped limiting grooves are formed in the two sides of the front end of the U-shaped table, and a residual glue scraping knife is fixedly installed at the front end of the swing table. According to the utility model, the scraped residual adhesive scraps can be cleaned and collected while the residual adhesive scraping operation is carried out on the processed transparent adhesive tape.

The invention provides a cover plate ink printing structure and a laminating method, and belongs to the technical field of display device manufacturing. The invention provides a cover plate ink printing structure. The cover plate ink printing structure comprises a transparent cover plate base material; the ink printing layer is arranged in the non-visible area of the transparent cover plate base material, and the ink printing layer comprises a first ink layer and a second ink layer which are arranged in a stacked mode; the OCA optical transparent adhesive tape is attached to the surface of the ink printing layer; according to the invention, the outer-layer printing ink is expanded outwards relative to the inner-layer printing ink, so that a concentrated accumulation mode of the printing ink at completely overlapped edges during traditional 1: 1 printing is broken through, and the flowing of the printing ink is dispersed to two staggered edges, so that the overall stacking height and steepness of the edges of the finally formed printing ink layer are remarkably reduced; and the filling capability requirement of the OCA optical transparent adhesive is correspondingly reduced, so that the thinner OCA optical transparent adhesive is used, and the material cost of the optical adhesive is directly reduced.

The utility model discloses a transfer printing latex head cleaning mechanism which comprises a rack, an equipment table is fixedly connected to the top of the rack, an air cylinder is fixedly connected to the outer end of the top of the equipment table, an oil cup is arranged at the telescopic end of the air cylinder, a vertical frame is fixedly connected to the top of the equipment table, and a first motor is fixedly connected to one side of the outer wall of the vertical frame. A center shaft is rotationally connected to the top of the vertical frame, a turnover frame is fixedly connected to the outer wall of the center shaft, a transmission assembly is jointly arranged between the center shaft and a first motor driving shaft, a second motor is fixedly connected to the top of the turnover frame, and a second motor driving shaft penetrates through the turnover frame and is fixedly connected with a lead screw shaft. A ball nut is arranged outside the lead screw shaft. The machine frame, the third motor, the adhesive tape and the waste roll are matched with one another, the waste roll is driven by the third motor to recycle the transparent adhesive tape, redundant ink around a lettering latex head can be conveniently bonded and adsorbed, and the cleaning effect and efficiency are greatly improved.

The present invention relates to an adhesive composition which suppresses the generation of air bubbles and has excellent transparency, adhesiveness, mechanical properties and long-term reliability, and a transparent adhesive tape comprising the same.

A transparent adhesive tape production and transportation device comprises a push rod, a first driving mechanism driving the push rod to move left and right, a second driving mechanism driving the push rod to move front and back and a third driving mechanism driving the push rod to swing up and down. One end of the push rod is hinged to the mounting plate through a hinge seat, and the other end is provided with a push plate; the first driving mechanism comprises a sliding block arranged below the mounting plate, a guide rod in sliding fit with the sliding block, a cam arranged on one side of the sliding block, a first motor for driving the cam to rotate and a first connecting rod; the second driving mechanism comprises a second connecting rod, a first rotating shaft, a third connecting rod, a fourth connecting rod, a fifth connecting rod, a second rotating shaft, a sixth connecting rod and a seventh connecting rod; the third driving mechanism comprises a cam disc, a second motor driving the cam disc to rotate, a triangular plate and an eighth connecting rod. The stability and the accuracy of the transparent adhesive tape in the transportation process are ensured, the structure is simplified, and the transmission efficiency is improved.

The utility model discloses a transparent adhesive tape color polarization artistic picture manufacturing device, and relates to the field of manufacturing transparent adhesive tape artistic pictures based on the color polarization principle. In order to solve the problems that a traditional color polarization colored art picture is manufactured by manually cutting a transparent adhesive tape, operation is complex in the manufacturing process, the manufacturing period is long, and the manufacturing efficiency is low. A power device in a frame positioning mechanism is controlled through a control circuit module, so that an adhesive tape processing mechanism moves along an X axis and a Y axis, a sticking rod at the bottom of a sleeve is driven to move up and down along a Z axis in cooperation with an up-down displacement assembly, the sticking rod touches an adhesive tape between two idle wheels, and meanwhile, the adhesive tape is cut by a cutting blade; the transparent adhesive tape color polarization art picture with the cut adhesive tape block downwards penetrates through the empty groove and is pasted on the acrylic base plate, a pair of transparent adhesive tape color polarization art pictures which can be viewed through the polaroid can be manufactured, manual intervention is not needed, and manufacturing efficiency is improved. The utility model is suitable for manufacturing the transparent adhesive tape art picture.

The article to which this design relates is a packaging container, for example, a packaging container for storing a flat-blade cutting blade. As shown in the reference diagram showing the names of each part, the packaging container is constructed by attaching transparent tape to a transparent resin plate. The flat-blade cutting blade is stored between the transparent resin plate and the transparent tape. The user can open the container by holding a part of the transparent tape and peeling it off the transparent resin plate.

The invention relates to the technical field of water-based polyurethane resin emulsion, and provides acrylate modified polyurethane resin emulsion for water-based ink with good adhesion to a plastic base material. The polyurethane resin emulsion is prepared from the following main components through solution polymerization, emulsification and solvent removal: an acrylate oligomer polyol acetone solution, polyester polyol, polyether polyol, diisocyanate, a carboxyl type hydrophilic chain extender, an esterification reaction catalyst, solvent acetone, a low molecular chain extender, a neutralization salt-forming agent and deionized water. The water-based gravure plastic ink prepared from the acrylate modified polyurethane resin emulsion provided by the invention is good in redissolvability and excellent in anti-adhesion performance, and has good adhesion to plastic (PE, BOPP, PVC, PET and the like) film substrates, and the adhesive force is tested by a transparent adhesive tape and reaches zero level. Meanwhile, the water-based plastic ink has good printability and can be applied to the fields of packaging, printing and decoration of various plastic films.

The utility model provides a transparent waterproof protective sleeve for an indwelling needle, and belongs to the technical field of indwelling needles. The transparent waterproof protective sleeve for the remaining needle comprises a transparent cover and a three-way pipe, a transparent adhesive tape is connected to the outer wall of the transparent cover, a through hole is formed in one end side of the transparent cover, a sealing ring is installed in the through hole, one end of the three-way pipe is communicated with a needle tube, and after the needle tube is inserted into the skin, the transparent cover is arranged on the three-way pipe in a covering mode. The transparent cover is arranged, and the transparent adhesive tape is connected to the outer side of the transparent cover, so that after the remaining needle is inserted into the skin of the human body, the transparent cover can cover the three-way pipe, and meanwhile, the medicament adding end of the three-way pipe penetrates through the sealing ring on the transparent cover, so that the medicament adding opening of the three-way pipe is located outside; meanwhile, the sealing effect between the three-way pipe and the transparent cover is improved through the sealing ring, and then the transparent adhesive tape is pasted on the skin of the human body, so that the overall sealing performance is improved.

The invention discloses an automatic packaging box machining device, and particularly relates to the technical field of packaging box machining, the automatic packaging box machining device comprises a mounting seat, and a guide groove is formed in the outer wall of the mounting seat; the adhesive tape pressing mechanism comprises a mounting shaft which penetrates through the guide groove and can reciprocate in the guide groove, the mounting shaft is connected with a placement seat which can synchronously move along with the mounting shaft, the placement seat is connected with a compression roller, and the compression roller can press the end of a transparent adhesive tape roll on the surface of a paperboard. The adhesive tape is rolled on the surface of the paperboard along with the movement of the placing seat; the mounting base is arranged, the movable adhesive tape pressing mechanism is arranged on the mounting base, the mounting base is clamped to the edges of a paperboard and a foam board in the machining process, the driving mechanism drives the adhesive tape pressing mechanism to move along the guide rail, the adhesive tape is automatically pasted between the paperboard and the foam board, and the structure supports multi-position synchronous tape pasting; and the paperboard reinforcing efficiency is effectively improved.

The invention relates to the technical field of waterborne polyurethane resin emulsions, and provides an acrylate modified polyurethane resin emulsion for steaming-resistant waterborne plastic ink, waterborne gravure plastic ink prepared from the acrylate modified polyurethane resin emulsion provided by the invention is good in resolubility and excellent in anti-adhesion performance; the adhesive has good adhesion performance and steaming and boiling resistance to plastic (PE, BOPP, PVC, PET and the like) films, and the adhesive force is tested by a transparent adhesive tape and reaches zero level; and through a 100 DEG C boiling water / 60 min cooking test, the ink coating is complete, and is free of floating, whitening and bubbling. Meanwhile, the water-based plastic ink has good printability, and can be applied to the fields of packaging, printing and decoration of various (PE, BOPP, PVC, PET and the like) plastic films.

The present invention provides a tape holder for holding cellophane tape (registered trademark), which holds the tape holder in a stable position on any wall surface, such as the flat surface of a table or the vertical surface of a wall. [Solution] The holder 10 holds the annular ring 1A of the tape winding body 1 in a rotatable annular cylinder 2, and includes a tape holding section 5 consisting of a cutter piece C for cutting the tape tip pulled out from the annular ring and a holding piece for holding the tape tip edge. The holder has a depth of approximately half the height dimension H of the tape holder T0, and dimensions slightly longer than the thickness dimension W of the tape holder and the depth dimensions of its left and right side walls. The top is fully open, and a bottom plate surface 10C is provided below it, with multiple magnet pieces M distributed and attached to the bottom plate surface. Multiple magnet pieces M are also distributed and attached to the left and right side walls of the holder 10.

The article to which this design relates is a packaging container, for example, a packaging container for storing a flat-blade cutting blade. As shown in the reference diagram showing the names of each part, the packaging container is constructed by attaching transparent tape to a transparent resin plate. The flat-blade cutting blade is stored between the transparent resin plate and the transparent tape. The user can open the container by holding a part of the transparent tape and peeling it off the transparent resin plate.

The utility model discloses a convenient specimen collection device suitable for microscope detection, which comprises a sampling assembly, the sampling assembly comprises a transparent adhesive tape, a left wing plate and a right wing plate, the left wing plate is fixedly arranged on the left side of the transparent adhesive tape, and the right wing plate is fixedly arranged on the right side of the transparent adhesive tape. The plurality of sampling assemblies are uniformly adhered to the surface of the smooth surface storage paper A through transparent adhesive tapes, the surface of the smooth surface storage paper A is provided with a disassembly and assembly line slot, and the corresponding sampling assemblies can be torn down for use through the disassembly and assembly line slot; the transparent adhesive tape and the glass slide can be rapidly and losslessly separated by means of a left wing plate and a right wing plate in the sampling assembly, and the operation fluency and the working efficiency of the whole detection process are remarkably improved due to the simplification of the step.

The article to which this design relates is a packaging container, for example, a packaging container for storing a flat-blade cutting blade. As shown in the reference diagram showing the names of each part, the packaging container is constructed by attaching transparent tape to a transparent resin plate. The flat-blade cutting blade is stored between the transparent resin plate and the transparent tape. The user can open the container by holding a part of the transparent tape and peeling it off the transparent resin plate.

The utility model discloses a cutting machine for transparent adhesive tape production, which comprises a mounting rack and a bottom plate, the bottom of the bottom plate is fixedly connected with the top of the mounting rack, the right side of the top of the bottom plate is fixedly connected with a cutting machine body, the top of the bottom plate is provided with a chute, and the transparent adhesive tape is arranged at the top of the bottom plate. The telescopic end of an electric push rod drives a connecting frame to rotate towards the back face through a limiting rod, the connecting frame rotates to drive a linkage gear to rotate towards the inner side through a round block, the linkage gear rotates to drive a linkage toothed plate to move towards the inner side, and the linkage toothed plate moves towards the inner side to drive a connecting block to move towards the inner side. The connecting block moves inwards to drive the connecting plate to move inwards, the connecting plate moves inwards to drive the limiting clamping ring to move inwards, the limiting clamping ring moves to limit the transparent adhesive tape on the top of the bottom plate, and then a user can start the cutting machine body to cut the transparent adhesive tape, so that the advantage of limiting the transparent adhesive tape during cutting is achieved.

A method for improving surface smoothness of a microstructure relates to surface treatment of the microstructure, and comprises the following steps: S1, precise gluing: uniformly blade-coating a chemical decoration liquid on the surface of the microstructure, the chemical decoration liquid being a solvent-type photocuring liquid, the solvent-type photocuring liquid comprising a photocuring material and a solvent, the solvent being an alcohol or an ether, and the solvent being an organic solvent; the photo-curing material is a non-anaerobic photo-curing transparent adhesive tape, and the mass of the photo-curing material accounts for 5-25% of the total mass; s2, baking and leveling: placing the microstructure in an environment of 50-70 DEG C for 20-60 minutes, and drying the solvent to form a layer of free leveling surface; and S3, curing and forming: carrying out light curing and forming on the microstructure, wherein the local exposure energy of the surface of the microstructure is 300-400mJ / cm < 2 >. By modifying the surface of the microstructure, the problems of non-smooth burrs, impurity particles, cracks and the like on the surface of the microstructure are solved, the smoothness of the surface of the microstructure is improved, an ideal optical surface is achieved, and the optical diffusion efficiency of the microstructure is improved.

The application discloses a red imported fire ant sampler and a use method thereof and belongs to the field of insect research. The device comprises a base plate, the bottom end of the base plate is provided with four locking columns, the four locking columns are inserted into the soil, the bottom surfaces of the base plate and the locking columns are connected through a soft buckle assembly, the top end of the base plate is provided with a sitting and lying shallow groove, a collecting box is installed in the sitting and lying shallow groove, the collecting box and the sitting and lying shallow groove are attracted by a piece of iron pot subway, the inner side of the collecting box is provided with leaf food, and the leaf food is soaked by a flavoring agent. The smell emitted by the leaf food can attract the red imported fire ants to climb into the interior of the collecting box, at this time, the sticky piece at the top end of the slope ring can stop the weak red imported fire ants, the robust red imported fire ants can pass through the slope ring and enter the interior of the collecting box, the red imported fire ants cannot climb out of the transparent adhesive tape again, and the jumping insects can jump to the drooping paper strip from the bottom of the collecting box.

The invention relates to an artificial conservation method for tricholoma matsutake, which belongs to the technical field of conservation and propagation promotion of wild mushrooms, and comprises the following steps: selecting wild tricholoma matsutake with pileus diameter of 1.5-3cm and stipe 1.2-3.2 cm higher than the ground surface; wrapping pileus with absorbent paper for 2-3 circles, and fixing the pileus with a transparent adhesive tape; moisturizing the tricholoma matsutake, and keeping the humidity of a small environment around the tricholoma matsutake; the tricholoma matsutake is harvested after growing for 6-8 days. According to the method, simple and effective conservation measures can be provided for the tricholoma matsutake with small pileus diameter, vegetative growth is prolonged and pileus opening is delayed by inhibiting growth of the tricholoma matsutake pileus, so that the quality and yield of the wild tricholoma matsutake are improved, and meanwhile, the method is easy and convenient to operate, low in cost and suitable for being widely applied to the field environment.

The article to which this design relates is a packaging container, for example, a packaging container for storing a flat-blade cutting blade. As shown in the reference diagram showing the names of each part, the packaging container is constructed by attaching transparent tape to a transparent resin plate. The flat-blade cutting blade is stored between the transparent resin plate and the transparent tape. The user can open the container by holding a part of the transparent tape and peeling it off the transparent resin plate.

The invention relates to the technical field of nondestructive testing, in particular to a DAC curve making method, a radial ultrasonic testing method and a radial ultrasonic testing device.A planar bicrystal longitudinal wave probe is electrically connected with an ultrasonic flaw detector, and the ultrasonic flaw detector obtains flat-bottom hole amplitude difference data of a standardized planar defect simulation carrier; calibrating the standardized cambered surface defect simulation carrier by using a cambered surface type bicrystal longitudinal wave probe of which the detection surface is pasted with a kitchen and bath mildew-proof transparent adhesive tape, placing the cambered surface type bicrystal longitudinal wave probe on the standardized cambered surface defect simulation carrier, and making a DAC curve formed by multiple bottom surface echoes of a flat-bottom hole and a multi-step of the standardized cambered surface defect simulation carrier; and the DAC curve is corrected through the data of the standardized plane defect simulation carrier to obtain a standard DAC curve, so that the DAC curve manufactured by the method can accurately quantify the size and depth of defects such as cracks and inclusions in the planet gear, and the risks of missing detection and misjudgment are remarkably reduced.

The utility model discloses a light and thin type LCD display screen, relates to the display screen technology field, the light and thin type LCD display screen comprises a packaging shell, a backlight plate, an LCD panel and a touch screen layer are laid on the packaging shell in sequence, the backlight plate is adhered to the packaging shell through an ultrathin adhesive, the LCD panel is adhered to the backlight plate through a flexible transparent adhesive, and the touch screen layer is adhered to the backlight plate through a transparent adhesive. And the touch screen layer is adhered to the LCD panel through an optical transparent adhesive tape. According to the technical scheme provided by the utility model, the lightening and thinning of the LCD display screen can be improved.

The invention relates to the technical field of adhesive tape processing, in particular to a transparent adhesive tape processing technology. The transparent adhesive tape processing technology comprises the following steps that S1, plastic particle raw materials are subjected to film blowing to form an adhesive tape base material; s2, coating the adhesive on the adhesive tape base material, and then uniformly scraping the adhesive on the adhesive tape base material by using a scraper blade; s3, cooling the adhesive by using cooling equipment to form a prefabricated base material; s4, the prefabricated base material is gradually introduced into a winding device, and the winding device is used for winding the prefabricated base material; the winding device comprises a fixing plate and a fixing frame, a rotating rod is rotationally connected to the fixing plate, a round piece is detachably connected to the front side of the fixing plate through a bolt, a sliding strip is connected to the fixing plate, a moving block is slidably connected to the sliding strip, and a first compression spring is fixedly connected between the sliding strip and the moving block. And the winding thickness and the winding effect can be automatically detected in real time, and convenience is provided for winding work.

The utility model discloses an air pressure recoil prefabricated formwork, relates to the technical field of building structures, and solves the technical problems that an existing cavity concrete structure construction formwork cannot be detached, and the later chiseling cost is huge. Comprising a prefabricated formwork body and a set of stiffening ribs arranged in the prefabricated formwork body. An air passage is mounted in the prefabricated template body through a group of stiffening ribs; according to the utility model, the air channel cover plate is connected in the side protection groove of the prefabricated template body through the positioning nail and covers the air channel, and then the transparent adhesive tape is adopted to seal the air hole groove so as to prevent concrete leakage from polluting the air inlet hole; and then a prefabricated formwork body is formed after binding of the steel bars is completed, the prefabricated formwork body is sealed after the whole prefabricated formwork body is placed in the cavity, and concrete is poured. By means of the design, the forming quality of cavity concrete can be remarkably improved, the requirement of a design drawing is met, an extruded sheet formwork is not needed, material input is reduced, and meanwhile the huge cost of later chiseling is avoided.

The invention provides a hemispherical lens array and a preparation method and application thereof. The preparation method comprises the following steps: taking monodisperse polymer microspheres as a template, obtaining a single-layer microsphere array through a colloid friction self-assembly method, and integrally transferring the single-layer microsphere array to a transparent adhesive tape adhesive layer to form a semi-embedded structure; then, a high-precision hemispherical concave cavity array imprinting template is obtained by adopting a polydimethylsiloxane reverse mold method; an ultraviolet curing polymer prepolymer or a high-refractive-index inorganic nanoparticle solid fluid is respectively imprinted on the surface of a sample to be detected by using the template, and a hemispherical lens array is prepared. The obtained lens array can capture and convert near-field high-frequency information on the surface of a sample, large-view-field super-resolution optical microscopic imaging is achieved, and the imaging resolution of the polymer lens array and the imaging resolution of the inorganic lens array are superior to 100 nm and 50 nm respectively. The template used in the invention has an accurate structure, can be repeatedly used, and is suitable for large-area fine observation of nano materials, semiconductor chips and other micro-nano structures.

The utility model aims to provide a license plate packing box which comprises a bottom support and an inner box, a containing groove is formed in the bottom support, the containing groove is used for containing a license plate, the projection area of the inner box is smaller than that of the containing groove, the height of the inner box is larger than the depth of the containing groove, and when the inner box is contained in the containing groove, the inner box is inserted into the containing groove. A material containing groove is formed in the side face, away from the bottom support, of the inner box, and the material containing groove is used for containing bolts used for fixing the license plate. Therefore, after the license plate is clamped by the inner box and the bottom support together, the inner box and the bottom support are wound together by using a common transparent adhesive tape, and the license plate is protected by using the bottom support and the inner box together, so that the license plate is effectively prevented from being bent in the transportation process; the material containing groove is formed in the surface of the inner box, so that when the inner box and the bottom support are wound through the transparent adhesive tape, whether the bolts are placed in the material containing groove or not can be visually seen, and the problem that the bolts are not placed in the material containing groove can be avoided.