CN220772878U - Plastic particle appearance inspection device - Google Patents
Plastic particle appearance inspection device Download PDFInfo
- Publication number
- CN220772878U CN220772878U CN202321884703.6U CN202321884703U CN220772878U CN 220772878 U CN220772878 U CN 220772878U CN 202321884703 U CN202321884703 U CN 202321884703U CN 220772878 U CN220772878 U CN 220772878U
- Authority
- CN
- China
- Prior art keywords
- cavity
- fixed mounting
- plastic particle
- plate
- inspection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000002245 particle Substances 0.000 title claims abstract description 96
- 229920003023 plastic Polymers 0.000 title claims abstract description 89
- 239000004033 plastic Substances 0.000 title claims abstract description 89
- 238000007689 inspection Methods 0.000 title claims abstract description 56
- 230000009286 beneficial effect Effects 0.000 description 11
- 238000007599 discharging Methods 0.000 description 10
- 238000005286 illumination Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 229920006351 engineering plastic Polymers 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 229920000426 Microplastic Polymers 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- -1 that is Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
Landscapes
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
The utility model provides a plastic particle appearance inspection device, and belongs to the technical field of plastic particle appearance inspection. This kind of plastic particle appearance inspection device, including the work table, the work table includes the table, table bottom four corners fixed mounting has the table foot, the table top is equipped with the inspection chamber, the inspection chamber includes the cavity, cavity inboard one end top fixed mounting has the baffle, cavity inboard top fixed mounting has the backlight plate, backlight plate top fixed mounting has the stock guide, the stock guide includes the fixed frame, fixed frame inboard fixed mounting has a plurality of frids, the frid is the equidistance and arranges, and this utility model can effectively provide and be shaded and inspect plastic particle outward appearance, and is convenient for collect plastic particle after the inspection is accomplished, has higher practical value.
Description
Technical Field
The utility model relates to the technical field of plastic particle appearance inspection, in particular to a plastic particle appearance inspection device.
Background
Plastic particles, that is, plastic particles, are strictly called plastic chips, the plastic particles are usually stored and transported in the form of semi-finished products, the common plastic particles are divided into general plastic particles, engineering plastic particles and special plastic particles, the general plastic particles comprise PE particles, PP particles, PVC particles, PS particles and the like, the engineering plastic particles comprise PET particles, pon particles and the like, the special plastic particles comprise thermosetting plastics, functional molecular plastics and the like, and the appearance inspection of the plastic particles needs to be performed on the appearance, the notch, the glossiness, the transparency, the air holes and other dimensions of the plastic particles.
As disclosed in chinese patent publication No. CN206369737U, a plastic particle appearance inspection device includes a plastic particle accommodating groove, the bottom of the plastic particle accommodating groove is mounted on a bracket in a reversible manner, one end of the plastic particle accommodating groove is wider than the other end, a blanking pipe is disposed at one end of the plastic particle accommodating groove with a smaller width, a jacking device is disposed at one end of the plastic particle accommodating groove with a larger width, and when the jacking device jacks up, the plastic particle accommodating groove lifts up with the bracket as a fulcrum, and the end of the plastic particle accommodating groove with a larger width is lifted up;
according to the technical scheme, one end with large width of the plastic particle accommodating groove is pushed by the air cylinder, when the jacking device jacks up, the plastic particle accommodating groove takes the support as a fulcrum, the one end with large width of the plastic particle accommodating groove is lifted up, inspected plastic particles slide downwards towards the one end with small width of the plastic particle accommodating groove and are discharged from the discharging pipeline, and an operator can use the bag to be sleeved on the discharging pipeline to collect the plastic particles.
However, the scheme uses the illuminating lamp to provide a light source, is inconvenient to check the transparency, has smooth surfaces of plastic particles, can have a certain reflection phenomenon, and is easy to appear in the eye pattern when the outer tube is checked by naked eyes.
Accordingly, the present utility model has been made in view of the above problems, and an object of the present utility model is to provide a plastic particle appearance inspection device which has a practical value.
Disclosure of Invention
In order to solve the technical problems, the embodiment of the utility model provides a plastic particle appearance inspection device, which is realized by the following technical scheme:
the utility model provides a plastic particle appearance inspection device, includes the work table, the work table includes the table, table bottom four corners fixed mounting has the table foot, the table top is equipped with the inspection chamber, the inspection chamber includes the cavity, cavity inboard one end top fixed mounting has the baffle, cavity inboard top fixed mounting has the backlight plate, backlight plate top fixed mounting has the stock guide, the stock guide includes the fixed frame, fixed frame inboard fixed mounting has a plurality of frids, the frid is the equidistance range.
Adopt the beneficial effect of above-mentioned further scheme, through table bottom four corners fixed mounting table foot, be convenient for the table foot provides the support for the table, through the setting of cavity, be convenient for fixed mounting stock guide and backlight plate, and provide the space to carry out the inspection to the plastic particle outward appearance, be convenient for fixed mounting has the backlight plate through cavity inboard one end top fixed mounting, and be convenient for the plastic particle gets into the collecting hopper, be convenient for at the inside bearing plastic particle of inspection cavity through cavity inboard top fixed mounting has the backlight plate, and provide the illumination plastic particle in a poor light, convenience of customers checks the outward appearance and the transparency of plastic particle, there are a plurality of frids through fixed frame inboard fixed mounting, the frid is the equidistance range, the frid of being convenient for makes the plastic particle get into the baffle box inside and spreads out, convenience of customers inspects the outward appearance of plastic particle, and take out with the outward appearance unusual.
Further, a fixing strip is fixedly arranged at the top of one end of the groove plate.
The beneficial effect of adopting above-mentioned further scheme is, has the fixed strip through frid one end top fixed mounting, and the fixed strip of being convenient for is fixed frid one end to open the one end of frid, make things convenient for plastic particle to slide into the collecting hopper from backlight plate top.
Furthermore, a chute is formed in the middle of the fixing strip, and a plugboard is connected inside the chute in a sliding manner.
The plastic particle collecting hopper has the beneficial effects that the sliding groove is formed in the middle of the fixing strip, the inserting plate is connected inside the sliding groove in a sliding mode, the inserting plate is convenient to block plastic particles at the top of the backlight lamp panel, and the plastic particles are prevented from rolling into the collecting hopper during plastic particle inspection.
Further, the top of the plugboard is fixedly connected with a handle.
The beneficial effect of adopting above-mentioned further scheme is, through picture peg top fixedly connected with handle, the user of being convenient for uses the handle to pull out the picture peg and inserts.
Furthermore, cavity one end fixed mounting has the collecting hopper, the discharge gate has been seted up to the collecting hopper bottom.
Adopt the beneficial effect of above-mentioned further scheme, through cavity one end fixed mounting having the collecting hopper, the discharge gate has been seted up to the collecting hopper bottom, and the inspection chamber slope of being convenient for is with plastic pellet from backlight plate top slip in the collecting hopper, from the discharge gate roll-off, and convenience of customers is equipped with the sample bag in the cover of discharge gate bottom and collects.
Furthermore, the bottom of one end of the cavity provided with the collecting hopper is hinged with one end of the table plate.
The beneficial effect of adopting above-mentioned further scheme is, is equipped with collecting hopper one end bottom and table one end hinge connection through the cavity, is convenient for fix inspection chamber one end and table, makes things convenient for electric telescopic handle work to raise the inspection chamber other end, makes the inspection chamber slope.
Further, the through groove is formed in the middle of the desk plate, the installation frame is fixedly installed at the bottom of the through groove of the desk plate, and an electric telescopic rod is arranged inside the installation frame.
Adopt the beneficial effect of above-mentioned further scheme, through the desk middle part set up logical groove, the output of being convenient for electric telescopic handle passes the desk, is equipped with logical groove department bottom fixed mounting through the desk and has the mounting bracket, and the inside electric telescopic handle that is equipped with of mounting bracket is convenient for fixed mounting electric telescopic handle, makes electric telescopic handle work make the inspection chamber slope.
Further, the bottom of the electric telescopic rod is hinged with the mounting frame, and the output end of the electric telescopic rod is hinged with the bottom of the cavity.
The beneficial effect of adopting above-mentioned further scheme is, is articulated with the mounting bracket through electric telescopic handle bottom, and electric telescopic handle output is articulated with the cavity bottom to be connected, and electric telescopic handle work of being convenient for is raised inspection chamber one end to make the inspection chamber slope, slide into the collecting hopper with the plastic particle on backlight plate surface.
Further, a lamp holder is fixedly arranged at the top of one end of the desk plate, and an illuminating lamp is fixedly arranged on one side of the lamp holder.
The plastic particle inspection table has the beneficial effects that the lamp holder is fixedly arranged at the top of one end of the table plate, the illuminating lamp is fixedly arranged at one side of the lamp holder, the illuminating lamp is convenient to illuminate for the top of the plastic particle, and a user can inspect the appearance of the plastic particle conveniently.
Further, the illuminating lamp and the backlight lamp panel are both LED light-emitting devices.
The technical scheme has the beneficial effects that the LED illuminating device is used for illuminating the plastic particles through the illuminating lamp and the backlight lamp panel, the heat productivity in the illuminating process of the LED illuminating device is small, the light is uniform and soft, and the plastic particles can be checked by a user conveniently.
The beneficial effects of the utility model are as follows: according to the plastic particle appearance inspection device obtained through the design, the table legs are fixedly arranged at four corners of the bottom of the table plate, so that the table legs can provide support for the table plate, the material guide plate and the backlight lamp plate are fixedly arranged through the arrangement of the cavity, a space for inspecting the appearance of plastic particles is provided, the backlight lamp plate is fixedly arranged through the top of one end of the inner side of the cavity, the plastic particles enter the collecting hopper, the backlight lamp plate is fixedly arranged through the top of the inner side of the cavity, the plastic particles are conveniently supported in the inspecting cavity, the plastic particles are conveniently irradiated by backlight, the appearance and the transparency of the plastic particles are conveniently inspected by a user, the groove plates are fixedly arranged at equal intervals through the inner side of the fixing frame, the groove plates are conveniently combined into the guide groove, the plastic particles enter the guide groove for spreading, the appearance of the plastic particles is conveniently inspected by the user, and the abnormal appearance is taken out by the user.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic perspective view of a plastic particle appearance inspection device according to the present utility model;
FIG. 2 is an exploded view of the internal structure of the inspection chamber provided by the present utility model;
FIG. 3 is a partial perspective view of the stock guide provided by the present utility model;
FIG. 4 is a cross-sectional view of an inspection chamber according to the present utility model
Fig. 5 is a schematic perspective view of a working table according to the present utility model.
In the figure: 101. a work table; 10101. a table plate; 10102. a table leg; 10103. a lamp holder; 10104. a lighting lamp; 10105. a mounting frame; 10106. a through groove; 102. an inspection chamber; 10201. a cavity; 10202. a collecting hopper; 10203. a discharge port; 10204. a baffle; 103. a material guide plate; 10301. a fixed frame; 10302. a trough plate; 10303. a fixing strip; 10304. a chute; 10305. inserting plate; 10306. a handle; 104. a backlight panel; 105. an electric telescopic rod.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.
Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.
An embodiment of a plastic particle appearance inspection apparatus of the present utility model
The utility model provides the following technical scheme: as shown in fig. 1-5, a plastic particle appearance inspection device, including the work table 101, the work table 101 includes the table 10101, table 10101 bottom four corners fixed mounting has the table foot 10102, through table 10101 bottom four corners fixed mounting has the table foot 10102, the table foot 10102 of being convenient for provides support for the table 10101, table 10101 top is equipped with inspection cavity 102, inspection cavity 102 includes cavity 10201, through the setting of cavity 10201, be convenient for fixed mounting stock guide 103 and backlight plate 104, and provide the space that carries out the inspection to the plastic particle outward appearance, cavity 10201 inboard one end top fixed mounting has baffle 10204, be convenient for fixed mounting have baffle 10204 through cavity 10201 inboard one end top fixed mounting, and be convenient for plastic particle get into collecting hopper 10202 through cavity 10201, cavity 10202 inboard top fixed mounting has backlight plate 104, be convenient for inside plastic particle at inspection cavity 102 inside particle, and provide backlight support plastic particle to carry out the setting of cavity 10201 through cavity 10201, be convenient for fixed mounting stock guide 103 and take out the space that the plastic particle outward appearance is checked by the user, a plurality of the inside stock guide 103 is convenient for arrange the inside stock guide 10302, a plurality of stock guide 10302 is fixed mounting stock guide 10302 through cavity 1034, and the inside stock guide 10301 fixed mounting is convenient for get into the fixed groove 10302.
Embodiment II of the device for inspecting the appearance of plastic particles
Referring to fig. 1-4, a fixing strip 10303 is fixedly installed at the top of one end of a slot board 10302, the fixing strip 10303 is fixedly installed at the top of one end of the slot board 10302, the fixing strip 10303 is convenient to fix one end of the slot board 10302, thereby opening one end of the slot board 10302, plastic particles slide into a collecting hopper 10202 from the top of a backlight board 104, a chute 10304 is formed in the middle of the fixing strip 10303, a plugboard 10305 is connected in a sliding manner inside the chute 10304, the plugboard 10305 is convenient to block the plastic particles at the top of the backlight board 104, a handle 10306 is prevented from rolling into the collecting hopper 10202 during plastic particle inspection, a handle 10306 is fixedly connected at the top of the plugboard 10305, a handle 10306 is convenient for a user to plug the plugboard 10305, a hopper 10202 is fixedly installed at one end of the chamber 10202, a discharging port 3 is formed at the bottom of the collecting hopper 10202, a discharging port 10202 is fixedly installed at the bottom of the chamber 10202, a hopper 10202 is fixedly installed at the bottom of the hopper 10202, and a discharging port 10202 is provided with a discharging port 3 through a chamber 10201 fixedly installed at the bottom of the hopper 10202, and the bottom of the chamber 10202 is provided with a chute 10202, the discharging port is convenient for the discharging port from the discharging port is conveniently slide out of the discharging port of the collecting bag from the top of the collecting hopper 102102.
Embodiment III of the Plastic particle appearance inspection device of the utility model
Referring to fig. 1-5, the cavity 10201 is provided with a collecting hopper 10202, the bottom of one end of the collecting hopper 10202 is hinged with one end of a table plate 10101, the bottom of one end of the collecting hopper 10202 arranged in the cavity 10201 is hinged with one end of the table plate 10101, one end of the inspection cavity 102 is conveniently fixed with the table plate 10101, the other end of the inspection cavity 102 is conveniently lifted by the electric telescopic rod 105 to enable the inspection cavity 102 to incline, a through groove 10106 is formed in the middle of the table plate 10101, the output end of the electric telescopic rod 105 conveniently penetrates through the table plate 10101, a mounting frame 10105 is fixedly arranged at the bottom of the position of the table plate 10101, an electric telescopic rod 105 is fixedly arranged at the bottom of the position of the table plate 10106, the electric telescopic rod 105 is conveniently fixedly arranged in the mounting frame 10105, the electric telescopic rod 105 is conveniently and fixedly arranged to enable the electric telescopic rod 105 to work to enable the inspection cavity 102 to incline, the bottom of the electric telescopic rod 105 is hinged with the mounting frame 10105, the output end of the electric telescopic rod 105 is hinged with the bottom of the cavity 10201, the electric telescopic rod 105 is convenient to work, one end of the inspection cavity 102 is lifted, the inspection cavity 102 is inclined, plastic particles on the surface of the backlight plate 104 are slid into the collecting hopper 10202, a lamp holder 10103 is fixedly arranged at one end top of the table plate 10101, a lamp 10104 is fixedly arranged at one side of the lamp holder 10103, the lamp 10103 is fixedly arranged at one end top of the table plate 10101, the lamp 10104 is fixedly arranged at one side of the lamp holder 10103, the lamp 10104 is convenient for the lamp 10104 to illuminate the top of the plastic particles, the user can inspect the appearance of the plastic particles, the lamp 10104 and the backlight plate 104 are LED light emitting devices, the LED light-emitting device has small heating value in the illumination process, and the light is uniform and soft, so that the appearance of the plastic particles can be checked by a user conveniently.
Specifically, the working principle of the plastic particle appearance inspection device is as follows: during the use, whether the inspection device junction is firm, whether the device is placed in the assigned position after the inspection is clear, open light 10104 and backlight plate 104, be LED light emitting device through light 10104 and backlight plate 104, LED light emitting device illumination in-process calorific capacity is little, and light is even soft, be convenient for the user to inspect plastic particles's outward appearance, the user is poured into backlight plate 104 top from the sample bag with the plastic particles who waits to inspect, there are a plurality of frid 10302 through fixed frame 10301 inboard fixed mounting, frid 10302 is the equidistance and arranges, frid 10302 makes up into the baffle box, make plastic particles get into baffle box inside and spread out, make things convenient for the user to inspect plastic particles's outward appearance, and take out with the outward appearance is unusual, through picture peg 10305 top fixedly connected with handle 10306 after the inspection, user pulls picture peg 10305 upwards slide, start electric telescopic handle 105, be connected with the hinge of mounting bracket 10105 through electric telescopic handle 105 bottom, and electric telescopic handle 105 output and cavity bottom hinge are connected, be convenient for electric telescopic handle 105 work will inspect cavity 102 one end, thereby make inspection cavity 102 raise the inside fixed frame 10302, make sure that the hopper 102 is equipped with the slope from 10203 top is equipped with the top of the hopper is equipped with at 10203, the top is equipped with the top is convenient for take out from the top bin, 10202, the top is equipped with the top is convenient for take out, and is easy to draw out.
The power supply and the principle of the illumination lamp 10104, the backlight plate 104 and the electric telescopic rod 105 of the plastic particle appearance inspection device are obvious to those skilled in the art, and will not be described in detail here.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, and various modifications and variations may be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (1)
1. The utility model provides a plastic particle appearance inspection device, its characterized in that includes work table (101), work table (101) are including table (10101), table (10101) bottom four corners fixed mounting has table foot (10102), table (10101) top is equipped with inspection chamber (102), inspection chamber (102) are including cavity (10201), cavity (10201) inboard one end top fixed mounting has baffle (10204), cavity (10201) inboard top fixed mounting has backlight plate (104), backlight plate (104) top fixed mounting has stock guide (103), stock guide (103) are including fixed frame (10301), a plurality of groove plates (10302) are fixedly arranged on the inner side of the fixed frame (10301), the groove plates (10302) are arranged at equal intervals, a fixed strip (10303) is fixedly arranged at the top of one end of each groove plate (10302), a sliding groove (10304) is formed in the middle of each fixed strip (10303), an inserting plate (10305) is slidably connected in each sliding groove (10304), a handle (10306) is fixedly connected to the top of each inserting plate (10305), a collecting hopper (10202) is fixedly arranged at one end of each cavity (10201), a discharge hole (10203) is formed in the bottom of each collecting hopper (10202), one end of each cavity (10201) is hinged to one end of each desk plate (10101), the utility model discloses a desk, including desk board (10101), lamp bracket (10103) and light, logical groove (10106) have been seted up at desk board (10101) middle part, desk board (10101) are equipped with logical groove (10106) department bottom fixed mounting has mounting bracket (10105), inside electric telescopic handle (105) that are equipped with of mounting bracket (10105), electric telescopic handle (105) bottom and mounting bracket (10105) hinge connection, electric telescopic handle (105) output and cavity (10201) bottom hinge connection, desk board (10101) one end top fixed mounting has lighting fixture (10103), lighting lamp (10104) are fixed mounting on one side of lighting fixture (10103), lighting lamp (10104) and backlight plate (104) are LED luminescent device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321884703.6U CN220772878U (en) | 2023-07-17 | 2023-07-17 | Plastic particle appearance inspection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321884703.6U CN220772878U (en) | 2023-07-17 | 2023-07-17 | Plastic particle appearance inspection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220772878U true CN220772878U (en) | 2024-04-12 |
Family
ID=90615404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321884703.6U Active CN220772878U (en) | 2023-07-17 | 2023-07-17 | Plastic particle appearance inspection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220772878U (en) |
-
2023
- 2023-07-17 CN CN202321884703.6U patent/CN220772878U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR20080079170A (en) | Show case | |
| DE202006018670U1 (en) | Illuminated picture frame e.g. for photographs and paintings, has string of lights arranged in light transmissive tube | |
| CN220772878U (en) | Plastic particle appearance inspection device | |
| CN206398384U (en) | A kind of light supply apparatus | |
| CN210850132U (en) | A maintenance platform for building materials detect | |
| CN215910578U (en) | High-efficient verifying attachment of LED lamps and lanterns | |
| CN111750635A (en) | Traditional Chinese medicine outdoor airing device with solar panel and using method | |
| CN215964923U (en) | Full-automatic LED nixie tube photoelectric detection device | |
| CN205650475U (en) | Light source light guide plate dysmorphism automatic identification equipment | |
| CN211373132U (en) | A high-efficient drying device for light guide plate production | |
| CN210902350U (en) | Art design is with exhibition frame | |
| CN208739200U (en) | A kind of mobile phone flashlight detection jig | |
| CN112495842A (en) | Detection system and detection method of LED lamp tube | |
| CN209213481U (en) | A kind of Combined LED lamp | |
| CN112021648A (en) | Cigarette color spot detection device | |
| CN215512732U (en) | Automatic laminating machine that piles up of light guide plate | |
| CN205786316U (en) | A kind of cloth detection | |
| CN205826556U (en) | Multi-angle line source is used in a kind of detection | |
| CN219324562U (en) | Dust collector is used in production of LED display screen | |
| CN218512337U (en) | Light inspection table for silk screen printing plate | |
| CN219270431U (en) | Luminous table for vegetable selection | |
| CN219030196U (en) | SMT double-sided paster steel mesh storage mechanism | |
| CN209821093U (en) | Inspection table for flexible plate | |
| CN220369688U (en) | Enterprise management paper file integration device | |
| CN219284996U (en) | Brightness comparison device for paper printing products |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |