CN220583333U - Multi-point position size detection device for gypsum board finished product - Google Patents
Multi-point position size detection device for gypsum board finished product Download PDFInfo
- Publication number
- CN220583333U CN220583333U CN202322311403.5U CN202322311403U CN220583333U CN 220583333 U CN220583333 U CN 220583333U CN 202322311403 U CN202322311403 U CN 202322311403U CN 220583333 U CN220583333 U CN 220583333U
- Authority
- CN
- China
- Prior art keywords
- stacked
- width
- length
- boards
- gypsum
- 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
- 229910052602 gypsum Inorganic materials 0.000 title claims abstract description 100
- 239000010440 gypsum Substances 0.000 title claims abstract description 100
- 238000001514 detection method Methods 0.000 title claims abstract description 35
- 238000005259 measurement Methods 0.000 claims abstract description 60
- 230000007246 mechanism Effects 0.000 claims abstract description 26
- 239000000523 sample Substances 0.000 claims description 65
- 238000000034 method Methods 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims 5
- 239000010410 layer Substances 0.000 description 5
- 238000009413 insulation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 229920002472 Starch Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000701 coagulant Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002365 multiple layer Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000007723 transport mechanism Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Length Measuring Devices By Optical Means (AREA)
Abstract
The utility model discloses a multi-point size detection device for gypsum board finished products, which comprises width measurement units arranged on two sides of a conveying mechanism for stacking gypsum boards, and length measurement units arranged along the conveying direction of the conveying mechanism, wherein height measurement units are further arranged above the conveying mechanism, and the width measurement units, the length measurement units and the height measurement units can respectively carry out multi-point measurement on the width, the length and the height of the stacking gypsum boards in conveying; the utility model samples and detects the multi-layer boards in the stacked gypsum boards, and detects the full sizes of the gypsum boards, including the length, the width and the thickness of the gypsum boards, so as to avoid the condition that the sizes of the multi-layer boards in the stacked gypsum boards are unequal.
Description
Technical Field
The utility model relates to the technical field of gypsum board finished product detection, in particular to a multi-point position size detection device for gypsum board finished products.
Background
The gypsum board is a light building board which is mainly made of gypsum and facing paper as main raw materials and is mixed with auxiliary materials such as water, foaming agent, coagulant, starch, fiber and the like, and has the characteristics of heat preservation, heat insulation, light weight, sound insulation, fire prevention, good decorative performance, convenient construction, space saving, energy conservation, environmental protection and the like.
The qualified gypsum board of drying needs to detect its appearance size, quantity, weight, and the testing result just can carry out the finished product sales in qualified within range, and traditional measurement mode carries out manual measurement to stacking gypsum board, leads to production efficiency decline.
Compared with manual measurement, the external dimension of the stacked gypsum board is measured by adopting the existing laser probe detection system, and the detection efficiency is improved, but the size of the stacked gypsum board is measured by adopting the existing single-point measurement of a single group of laser probes, and certain measurement errors exist, so that the subsequent misoperation exists on the treatment mode of the stacked gypsum board.
Disclosure of Invention
The utility model aims to provide a multi-point size detection device for gypsum board finished products, which aims to solve the technical problem that in the prior art, most of size measurement is single-point measurement of a single group of laser probes, and certain measurement errors exist, so that misoperation exists in a subsequent treatment mode of stacking gypsum boards.
In order to solve the technical problems, the utility model specifically provides the following technical scheme:
a multi-point size detection device for a finished gypsum board product, comprising:
the width measuring unit is arranged at two sides of the conveying mechanism of the stacked gypsum boards, the length measuring unit is arranged along the conveying direction of the conveying mechanism, the height measuring unit is further arranged above the conveying mechanism, and the width measuring unit, the length measuring unit and the height measuring unit can respectively carry out multi-point measurement on the width, the length and the height of the stacked gypsum boards in conveying.
As a preferable scheme of the utility model, the width measuring unit is provided with a plurality of groups of width measuring laser probes, and the plurality of groups of width measuring laser probes can measure boards with different heights of the stacked gypsum boards to carry out multi-point width measurement;
the length measuring unit is provided with a plurality of groups of length measuring laser probes, and the length measuring laser probes can be turned over to perform multi-point length measurement on boards which are moved to different heights of the stacked gypsum boards within the range of the length measuring unit;
the height measurement unit is capable of taking multi-point height measurements of the moving stacked gypsum board.
As a preferable scheme of the utility model, the width measuring unit comprises a crossing plate frame arranged on the conveying mechanism, a plurality of groups of width measuring laser probes are sequentially and symmetrically arranged on two vertical rods of the crossing plate frame according to the vertical direction, the same group of width measuring laser probes are symmetrically distributed about the central line of the conveying mechanism, and a plurality of groups of width measuring laser probes can carry out measuring work on a plurality of positions on different plates of the stacked gypsum boards in the moving process of the stacked gypsum boards.
As a preferable scheme of the utility model, the length measuring unit comprises a horizontal plate vertically distributed with the cross plate frame and a twisting bearing plate arranged at two ends of the horizontal plate, a plurality of groups of length measuring laser probes are sequentially arranged on side plates of the twisting bearing plate, and the twisting bearing plate can rotate around the end parts of the horizontal plate so as not to influence the stacked gypsum plates to enter the length range of the horizontal plate.
As a preferable scheme of the utility model, a pushing cylinder capable of rotating around the horizontal plate is movably arranged on the side wall of the end part of the horizontal plate, the end part of the pushing cylinder is movably connected with the twisting bearing plate, and the pushing cylinder drives the twisting bearing plate to rotate for an angle around the end part of the horizontal plate through the telescopic action;
the multiple sets of length measuring laser probes are capable of performing multiple measurements of a single location on different ones of the stacked gypsum boards during movement of the stacked gypsum boards along the length of the horizontal board.
As a preferred embodiment of the present utility model, the height measuring unit is provided on the lower surface of the crossing position of the crossing plate frame, and the height measuring unit can perform measurement work of a plurality of positions during the transportation of the stacked gypsum boards.
Compared with the prior art, the utility model has the following beneficial effects:
the utility model performs sampling detection on the multi-layer board in the stacked gypsum board, performs detection on the full size of the gypsum board, including the length, the width and the thickness of the gypsum board, avoids the condition that the sizes of the multi-layer board in the stacked gypsum board are unequal, performs multiple-time width detection on multiple points of the multi-layer board, performs multiple-time length detection on the same point of the multiple-layer board, and performs multiple-time height detection on the multi-point of the stacked gypsum board, thereby improving the sample number of detection data, facilitating screening out detection data with larger error, and improving the accuracy and stability of the whole detection device.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It will be apparent to those of ordinary skill in the art that the drawings in the following description are exemplary only and that other implementations can be obtained from the extensions of the drawings provided without inventive effort.
FIG. 1 is a schematic side sectional view of a multi-point size detection device according to an embodiment of the present utility model;
fig. 2 is a schematic structural diagram of a dimension measuring assembly according to an embodiment of the present utility model.
Reference numerals in the drawings are respectively as follows:
31-a width measuring unit; 32-a length measuring unit; 33-height measurement units;
311-cross-plate rack; 312-width measuring laser probe;
321-horizontal plates; 322-twisting the bearing plate; 323-a length measuring laser probe; 324-push cylinder.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1 and fig. 2, the present utility model provides a multi-point size detection device for a finished product of gypsum board, which can implement full-size detection on the width, length and height of a stacked gypsum board in conveying, wherein in order to reduce errors of detection data, multiple-point width detection is performed on multiple boards of the stacked gypsum board, multiple-point length detection is performed on the same point of the multiple boards of the stacked gypsum board, and multiple-point height detection is performed on the stacked gypsum board, so that the number of samples of detection data is increased, and detection data with larger errors is conveniently screened, thereby improving accuracy and stability of the whole detection device.
The detection device specifically comprises width measuring units 31 arranged on two sides of a conveying mechanism of the stacked gypsum boards, and length measuring units 32 arranged along the conveying direction of the conveying mechanism, wherein height measuring units 33 are further arranged above the conveying mechanism, and the width measuring units 31, the length measuring units 32 and the height measuring units 33 can respectively carry out multi-point measurement on the width, the length and the height of the stacked gypsum boards in conveying.
The width measuring unit 31 has a plurality of groups of width measuring laser probes 312, and the plurality of groups of width measuring laser probes 312 can measure the boards stacked on the gypsum board at different heights to perform multi-point width measurement (specifically, distance measurement between two sides of the gypsum board perpendicular to the conveying direction of the conveying mechanism).
The length measuring unit 32 has a plurality of sets of length measuring laser probes 323, and the length measuring laser probes 323 can be flipped over to perform multi-point length measurements on boards of different heights that are moved to the stacked gypsum boards within range of the length measuring unit 32.
The height measurement unit 33 is capable of taking multipoint height measurements of the moving stacked gypsum board.
In the present embodiment, the conveyance mechanism can perform continuous operation in the multi-spot size detection, and when the conveyance mechanism moves the stacked gypsum boards within the range of the length measuring unit 32, the length measuring laser probe 323 is turned to a vertical state, and the boards of different heights can be detected in the longitudinal direction (the longitudinal direction is specifically the conveyance direction along the conveyance mechanism) a plurality of times.
When the stacked plasterboard moves to be close to the downstream side of the length measuring unit 32, the length measuring laser probe 323 is turned to a horizontal state so that the stacked plasterboard can move under the length measuring laser probe 323.
Based on the above-described operation, in order to be able to detect that the conveying mechanism moves the stacked plasterboards within the range of the length measuring unit 32, the width measuring laser probe 312 may be specifically disposed on the upstream side of the length measuring unit 32, and when the width measuring laser probe 312 jumps from detecting the stacked plasterboards to failing to detect the stacked plasterboards, this means that the stacked plasterboards are moved within the range of the length measuring unit 32, the length measuring laser probe 323 is adjusted to be turned to the vertical state.
And the relative position of the stacked gypsum board between the front and rear length measuring laser probes 323 is determined according to the data result detected by the length measuring laser probes 323, and when the distance between the stacked gypsum board and the downstream length measuring laser probes 323 is detected to be small, the length measuring laser probes 323 are adjusted again to be turned to be in a horizontal state.
The size measurement of the stacking gypsum board is mostly carried out by single-point measurement of a single group of laser probes, a certain measurement error exists, so that misoperation exists in a subsequent processing mode of the stacking gypsum board, and the width and length measuring work can be carried out on the gypsum boards at different height positions respectively through a plurality of groups of laser probes in the embodiment, so that the size measurement of the multi-layer board of the stacking gypsum board is realized, the sampling detection is carried out on the layer board of the stacking gypsum board, and the stacking gypsum board is ensured to be of uniform size.
As a preferred example of this embodiment, the width measuring unit 31 includes a cross frame 311 disposed on the conveying mechanism, multiple sets of width measuring laser probes 312 are sequentially and symmetrically disposed on two vertical rods of the cross frame 311 according to the vertical direction, the same set of width measuring laser probes 312 are symmetrically distributed about the central line of the conveying mechanism, and multiple sets of width measuring laser probes 312 can perform measurement work on multiple positions on different boards of the stacked gypsum boards during the movement of the stacked gypsum boards.
In this embodiment, the width measuring laser probe 312 of the width measuring unit 31 is specifically disposed at the position of the length measuring laser probe 323 near the upstream side of the length measuring unit 32, and the width measuring unit 31 is in a normally open state, so that a plasterboard moving within the range of the length measuring laser probe 323 can be detected, and the turnover and the operation of the length measuring laser probe 323 can be regulated according to the output data change of the width measuring unit 31, so that the multi-point size detection device provided in this embodiment has high integration level and high automation level.
The length measuring unit 32 comprises a horizontal plate 321 vertically distributed across the plate frame 311, and a twisting bearing plate 322 arranged at two ends of the horizontal plate 321, wherein a plurality of groups of length measuring laser probes 323 are sequentially arranged on side plates of the twisting bearing plate 322, and the twisting bearing plate 322 can rotate around the end part of the horizontal plate 321 so as not to influence the length range of the stacked gypsum plates entering the horizontal plate 321.
The end side wall of the horizontal plate 321 is movably provided with a pushing air cylinder 324 which can rotate around the horizontal plate 321, the end of the pushing air cylinder 324 is movably connected with the twisting bearing plate 322, and the pushing air cylinder 324 drives the twisting bearing plate 322 to rotate 90 degrees around the end of the horizontal plate 321 through telescopic action.
Multiple sets of length measuring laser probes 323 can perform multiple measurements of a single location on different boards of a stacked gypsum board as the stacked gypsum board is moved along the length of the horizontal plate 321.
Whereas the height measuring unit 33 is provided on the lower surface of the crossing position of the horizontal plate 321 and the crossing plate frame 311, the height measuring unit 33 can perform a multi-point measuring work during the transportation of the stacked gypsum boards.
In this embodiment, the cross plate frame 311 is specifically used as a supporting point of the horizontal plate 321, so that the horizontal plate 321 is distributed above the conveying mechanism, and the measurement work of the length measuring laser probe 323 is convenient.
The height measurement unit 33 is specifically disposed on the lower surface of the crossing position across the board frame 311, and the height measurement unit 33 can perform measurement work of a plurality of positions during the transportation of the stacked gypsum boards.
As shown in fig. 1 and 2, the implementation principle of the multiple sets of laser probes of the width measuring unit 31 is as follows:
each group of laser probes consists of two distance measuring sensors, and when the stacked gypsum boards run to the width measuring unit 31, the two distance measuring sensors can measure the distance, and the measured distance is given through a set calculation mode, namely the measurement of the width of the boards.
From the detection data of each group of width measuring laser probes 312, the width distribution of different gypsum boards in the stacked gypsum boards can be obtained, i.e. multi-point measurement is performed on the moving stacked gypsum boards.
When the multiple measurement data of the width of a certain gypsum board is smaller than the set threshold value, the condition that the gypsum board is contracted is indicated, and an alarm reminding manual verification is needed.
The implementation principle of the multiple groups of laser probes of the length measuring unit 32 is as follows:
because the length measuring unit 32 is used for detecting the length between two sides of the stacked gypsum boards distributed along the conveying mechanism 1, in order to perform normal conveying operation of the stacked gypsum boards, the length measuring laser probe 323 in the length measuring unit 32 is located above the stacked gypsum boards when the stacked gypsum boards are not in operation, and after the stacked gypsum boards are conveyed to the area where the length measuring unit 32 is located, the length measuring laser probe 323 is driven to move downwards, and single-point multiple measurement is performed on different gypsum boards.
Namely, when the stacked gypsum boards move to the area where the horizontal plate 321 is located, the pushing cylinder 324 is used for pushing the twisted bearing plate 322 to rotate around the end part of the horizontal plate 321 to a vertical state, the multiple groups of length measuring laser probes 323 are used for measuring the lengths of different boards, and when the stacked gypsum boards are in a moving state, the multiple groups of length measuring laser probes 323 can perform single-point position multiple times measurement work on different boards of the stacked gypsum boards.
The specific measurement mode is as follows: because the distance between each group of length measuring laser probes 323 is a fixed value, when the stacked gypsum boards are in a moving state, the distance between the two ends of the stacked gypsum boards and the length measuring laser probes 323 is continuously changed, and the length value of each board along the conveying mechanism 1 is obtained by subtracting the measured result of each group of length measuring laser probes 323 from the fixed value of the distance.
When the stacked plasterboard is to be moved to a position close to the downstream length measuring laser probe 323 (specifically, measured according to the detection data of the length measuring laser probe 323), the pushing cylinder 324 is used for pushing the hinged carrier plate 322 to rotate around the end of the horizontal plate 321 to be in a horizontal state, so that the length measuring work of the stacked plasterboard is completed.
As the innovation point of this embodiment, the width measurement unit 31 and the length measurement unit 32 are both provided with multiple groups of laser probes, so that it can be considered that when the stacked gypsum boards are transported by the transport mechanism, the width measurement unit 31 and the length measurement unit 32 can detect multiple boards in the stacked gypsum boards in the width and length directions simultaneously, and in the transport process, each group of laser probes can measure a single gypsum board for multiple times, so that error data can be effectively removed from multiple measurement data of each gypsum board, and correct data can be reserved, thereby improving the stability of the whole detection system.
The above embodiments are only exemplary embodiments of the present application and are not intended to limit the present application, the scope of which is defined by the claims. Various modifications and equivalent arrangements may be made to the present application by those skilled in the art, which modifications and equivalents are also considered to be within the scope of the present application.
Claims (6)
1. A multi-point size detection device for a finished gypsum board product, comprising:
the device comprises width measuring units (31) arranged on two sides of a conveying mechanism of the stacked gypsum boards, and length measuring units (32) arranged along the conveying direction of the conveying mechanism, wherein height measuring units (33) are further arranged above the conveying mechanism, and the width measuring units (31), the length measuring units (32) and the height measuring units (33) can respectively carry out multi-point measurement on the width, the length and the height of the stacked gypsum boards in conveying.
2. A multi-point size inspection device for gypsum board products as set forth in claim 1, wherein,
the width measuring unit (31) is provided with a plurality of groups of width measuring laser probes (312), and the plurality of groups of width measuring laser probes (312) can measure boards with different heights of the stacked gypsum boards to perform multi-point width measurement;
the length measuring unit (32) is provided with a plurality of groups of length measuring laser probes (323), and the length measuring laser probes (323) can be turned over to perform multi-point length measurement on boards with different heights of the stacked gypsum boards which are moved into the range of the length measuring unit (32);
the height measuring unit (33) is capable of taking multipoint height measurements of the moving stacked gypsum board.
3. A multi-point size inspection device for gypsum board products as set forth in claim 2, wherein,
the width measurement unit (31) comprises a crossing plate frame (311) arranged on the conveying mechanism, a plurality of groups of width measurement laser probes (312) are sequentially and symmetrically arranged on two vertical rods of the crossing plate frame (311) according to the vertical direction, the same group of width measurement laser probes (312) are symmetrically distributed about the central line of the conveying mechanism, and a plurality of groups of width measurement laser probes (312) can perform measurement work on a plurality of positions on different plates of the stacked gypsum plates in the moving process of the stacked gypsum plates.
4. A multi-point size inspection apparatus for gypsum board products as set forth in claim 3, wherein,
the length measuring unit (32) comprises horizontal plates (321) which are vertically distributed across the plate frames (311), and twisting bearing plates (322) which are arranged at two ends of the horizontal plates (321), wherein a plurality of groups of length measuring laser probes (323) are sequentially arranged on side plates of the twisting bearing plates (322), and the twisting bearing plates (322) can rotate around the end parts of the horizontal plates (321) so as not to influence the stacked gypsum plates to enter the length range of the horizontal plates (321).
5. A multi-point size inspection device for gypsum board products as set forth in claim 4, wherein,
the side wall of the end part of the horizontal plate (321) is movably provided with a pushing air cylinder (324) which can rotate around the horizontal plate (321), the end part of the pushing air cylinder (324) is movably connected with the twisting bearing plate (322), and the pushing air cylinder (324) drives the twisting bearing plate (322) to rotate by 90 degrees around the end part of the horizontal plate (321) through the telescopic action;
multiple sets of said length measuring laser probes (323) are capable of performing multiple measurements of a single location on different ones of said stacked plasterboards during movement of said stacked plasterboards along the length of said horizontal board (321).
6. A multi-point size inspection apparatus for gypsum board products as set forth in claim 3, wherein,
the height measuring unit (33) is arranged on the lower surface of the crossing position of the crossing plate frame (311), and the height measuring unit (33) can measure a plurality of positions in the process of conveying the stacked gypsum boards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322311403.5U CN220583333U (en) | 2023-08-28 | 2023-08-28 | Multi-point position size detection device for gypsum board finished product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322311403.5U CN220583333U (en) | 2023-08-28 | 2023-08-28 | Multi-point position size detection device for gypsum board finished product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220583333U true CN220583333U (en) | 2024-03-12 |
Family
ID=90108016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322311403.5U Active CN220583333U (en) | 2023-08-28 | 2023-08-28 | Multi-point position size detection device for gypsum board finished product |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220583333U (en) |
-
2023
- 2023-08-28 CN CN202322311403.5U patent/CN220583333U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112082801B (en) | Online sampling detection device and detection method for gypsum board production line | |
| CN105509661B (en) | A kind of Ceramic Tiles flatness online test method | |
| CN108543718B (en) | Intelligent grading system for mechanical stress of laminated plate | |
| CN220583333U (en) | Multi-point position size detection device for gypsum board finished product | |
| CN104792285A (en) | Online plate thickness measuring system based on laser ultrasonics | |
| CN117109449A (en) | Gypsum board finished product panel detecting system | |
| CN101579908B (en) | Calendar on-line thickness-measuring device | |
| CN113203365A (en) | Online detection method for plate warping deformation | |
| CN202885862U (en) | A detecting device used for plywood outputted from a warehouse | |
| CN111468428A (en) | Stress wave saw material grading device and method | |
| CN210089657U (en) | PCB detection device | |
| CN208567722U (en) | A kind of rubber size detection device | |
| CN212442124U (en) | Stress wave saw material grading device | |
| CN203642915U (en) | Inclination detector | |
| CN106940176B (en) | A kind of thickness of feed layer detection device and method | |
| CN204129013U (en) | A kind of ultra-sonic defect detector | |
| CN207882248U (en) | Food-safety detecting instrument | |
| CN209680590U (en) | A kind of pipeline detecting refractory brick thickness, weight | |
| CN220444455U (en) | A crooked cardboard screening plant for carton processing | |
| CN219575567U (en) | Flaw on-line measuring instrument of semiconductor wafer | |
| CN205892111U (en) | A detect equipment that transports for panel processing | |
| CN116973209B (en) | Continuous on-line detection device and method for strength grade of sawn timber for structure | |
| CN217276060U (en) | GIGS sheet bending detection device | |
| TW297092B (en) | ||
| CN207557043U (en) | Apparent density measuring system for plastic products |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |