CN210775108U - Household paper powder falling rate detection device - Google Patents
Household paper powder falling rate detection device Download PDFInfo
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- CN210775108U CN210775108U CN201921025401.7U CN201921025401U CN210775108U CN 210775108 U CN210775108 U CN 210775108U CN 201921025401 U CN201921025401 U CN 201921025401U CN 210775108 U CN210775108 U CN 210775108U
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Abstract
The utility model discloses a powder falling rate detection device for household paper, which comprises a fixed plate, wherein a through groove is formed along the thickness direction of the surface of the fixed plate; the connecting seat is arranged on the upper plate surface of the fixing plate and is in sliding connection with the upper plate surface; the fixed clamp comprises a first body and a first chuck, wherein the first end of the first body is fixedly connected with the connecting seat, and the first chuck is arranged at the second end of the first body; the movable clamp comprises a second body and a second chuck, wherein the first end of the second body is fixedly connected with the telescopic end of the telescopic part, and the second end of the second body is arranged in a projection space below the second end of the first body; the weighing part comprises a mass sensor and a cantilever horizontally arranged, the cantilever comprises a first cantilever and a second cantilever, and one end of the first cantilever and one end of the second cantilever are connected to the mass sensor. The device can realize automatic weighing and the accuracy is high, efficient.
Description
Technical Field
The utility model belongs to paper detection area especially relates to a household paper rate detection device that falls powder.
Background
The household paper is a cleaning article commonly used in daily life, some paper towels are coarse, have black spots and are easy to fall off, the skin can be pricked when being wiped, a large amount of dust is adhered to the skin in the using process, the skin can have a bad stimulation effect, and the human health is easily affected when the household paper is inhaled into a respiratory tract. In order to standardize product production, ensure product quality safety and protect consumer health, the country carries out quantitative regulation on the powder dropping rate, the powder dropping rate is regulated to be less than or equal to 0.5 percent, namely, the condition that a large amount of hair and powder drop appear when the household paper is used is avoided, and the powder dropping rate detection device is used for detecting the powder dropping rate.
The existing powder falling rate detection method mainly comprises the steps of firstly weighing on a balance, then manually placing on a powder falling rate detection device to swing back and forth, finally manually taking down and placing on the balance to weigh again, and calculating the powder falling rate according to the weight difference.
In the prior art, the human error of a tester in the operation process is large, the balance weighing process also has errors, automatic weighing is not carried out, and automatic clamping and automatic positioning are not realized, so that the accuracy is low and the efficiency is low.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the to-be-solved technical problem of the utility model is to provide a household paper powder falling rate detection device that can realize automatic weighing and the accuracy is high, efficient.
The technical scheme of the utility model is that:
a household paper powder falling rate detection device comprises:
the fixing plate is provided with a through groove along the thickness direction of the plate surface of the fixing plate;
the connecting seat is arranged on the upper plate surface of the fixing plate and is in sliding connection with the upper plate surface, the sliding connection means that the connecting seat moves along the length direction of the through groove, and the connecting seat can be controlled by a linear driving device to move along the through groove;
the driving module of the telescopic part is arranged on the connecting seat, and the telescopic direction of the telescopic part is the thickness direction of the surface of the fixed plate;
the fixed clamp comprises a first body and a first chuck, the first body is arranged in the projection space range of the through groove, the first end of the first body is fixedly connected with the connecting seat and is positioned above the through groove, the second end of the first body is positioned below the through groove, and the first chuck is arranged at the second end of the first body;
the movable clamp comprises a second body and a second chuck, the second body is positioned on the first vertical side of the first body, the second body is arranged in the projection space range of the through groove, the first end of the second body is fixedly connected with the telescopic end of the telescopic part, the second end of the second body is arranged in the projection space below the second end of the first body, the second chuck is arranged at the second end of the second body and is positioned under the first chuck, the second chuck comprises a first lap joint arm and a second lap joint arm, and the first lap joint arm and the second lap joint arm are arranged in parallel and are provided with a first lap joint gap;
the paper carrier comprises an overlapping cross rod, a vertical connecting rod and a carrier body, wherein the upper end of the vertical connecting rod is vertically and fixedly connected with the middle section of the overlapping cross rod, the lower end of the vertical connecting rod is connected with the carrier body, and the overlapping cross rod is overlapped on the first overlapping arm and the second overlapping arm;
the weighing part comprises a mass sensor and a cantilever horizontally arranged, the cantilever comprises a first cantilever and a second cantilever, one end of the first cantilever and one end of the second cantilever are connected with the mass sensor, the other end of the first cantilever and the other end of the second cantilever are provided with a measuring groove used for weighing, the measuring groove is arranged in a projection space penetrating through the lower part of the measuring groove, the second chuck is at least in one position right above the measuring groove and at least in one position right below the measuring groove when moving, a second lap joint gap is arranged between the first cantilever and the second cantilever, a lap joint cross rod can be lapped on the first cantilever and the second cantilever on the measuring groove, and the movable clamp can vertically move in the second lap joint gap.
According to the utility model discloses an embodiment, linear drive device includes:
the motor is arranged on the fixing plate;
the swing mechanism is arranged on the motor shaft and can be driven by the motor to do circular motion;
a first rod end joint bearing is arranged at one end of the connecting rod, a second rod end joint bearing is arranged at the other end of the connecting rod, the first rod end joint bearing is connected to the swing mechanism, a certain distance is reserved between the center of the inner spherical surface of the first rod end joint bearing and the center of the motor shaft, and the second rod end joint bearing is connected to the connecting seat;
the linear guide rail is arranged on the fixing plate, and the connecting seat is arranged on the linear guide rail;
the rotary mechanism does circular motion and drives the connecting seat to do linear motion on the linear guide rail through the conduction of the connecting rod.
According to the utility model discloses an embodiment, rotation mechanism is circular gyro wheel, the gyro wheel center with the motor shaft links to each other.
According to an embodiment of the present invention, the rotating wheel is hollow in part.
According to the utility model discloses an embodiment, rotation mechanism is shaft-like crank, crank one end connect in the motor shaft.
According to the utility model discloses an embodiment, linear guide is two.
According to the utility model discloses an embodiment, the pars contractilis is the cylinder, install in on the connecting seat, the flexible direction of cylinder piston rod does fixed plate face thickness direction.
According to the utility model discloses an embodiment, first chuck with the second chuck first overlap joint arm and second overlap joint arm all is equipped with the recess.
According to the utility model discloses an embodiment, including the leading wheel, the leading wheel is located the adjacent vertical side in first vertical side of first body, just the leading wheel with a vertical side of second body contacts, when moving anchor clamps and being concertina movement the leading wheel contacts with the second body all the time.
According to the utility model discloses an embodiment, the paper carrier the carrier body is the clip.
The utility model discloses owing to adopt above technical scheme, make it compare with prior art and have following advantage and positive effect:
(1) the utility model discloses set up fixed plate, connecting seat, pars contractilis, decide anchor clamps, move anchor clamps, paper carrier, weigh the portion, realized the function that the household paper automatic weighing, have the advantage that the test accuracy is high, efficiency of software testing is high.
(2) The linear driving device of the utility model is provided with the motor, the swing mechanism, the connecting rod and the linear guide rail, and uses the crank-connecting rod mechanism to convert the rotation of the motor into linear motion, thereby having simple structure and low cost; the rotary mechanism adopts a circular rotary wheel, the structure is simple, the rotary jumping is small, the structure is stable, and the part of the rotary wheel is hollow, so that the weight is reduced; the swing mechanism adopts a rod-shaped crank, and the structure is simple and convenient.
(3) The utility model discloses linear guide is two, makes the structure more reliable and more stable.
(4) The utility model discloses the pars contractilis is the cylinder, and the cylinder is the flexible part commonly used, and is with low costs, efficient, and the reliability is high.
(5) The utility model discloses first chuck with the second chuck first overlap joint arm and second overlap joint arm all is equipped with the recess for increase friction, the centre gripping is more reliable.
(6) The utility model discloses set up the leading wheel and make to move that anchor clamps are flexible can not produce the skew because of factors such as vibrations for the device reliability is high.
(7) The utility model discloses the carrier body of paper carrier is the clip, and is simple and convenient, and the practicality is strong.
Drawings
The following detailed description of embodiments of the present invention is provided with reference to the accompanying drawings, in which:
FIG. 1 is a dynamic structural diagram of a household paper powder falling rate detection device of the present invention;
FIG. 2 is a side view of the device for detecting the dusting rate of household paper of the present invention;
FIG. 3 is a side view of the apparatus for detecting dusting rate of household paper according to the present invention;
fig. 4 is a front view of the whole package of the device for detecting the powder dropping rate of the household paper of the present invention.
Description of reference numerals:
1: a fixing plate; 2: a connecting seat; 3: a cylinder; 41: a first body; 42: a first chuck; 51: a second body; 52: a second chuck; 61: lapping the cross bars; 62: a vertical connecting rod; 63: a carrier body; 71: a mass sensor; 72: a cantilever; 81: a motor; 82: a circular turret; 83: a connecting rod; 84: a first rod end knuckle bearing; 85: a second rod end knuckle bearing; 86: a linear guide rail; 9: paper for daily use; 10: a guide wheel; 100: a housing; 101: a pressure regulating valve; 102: an emergency stop button; 103: a printer; 104: a screen; 105: and a button is switched on and off.
Detailed Description
The present invention provides a household paper powder falling rate detection device, which is described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more fully apparent from the following description and appended claims. It is to be noted that the drawings are in a very simplified form and are not to be construed as precise ratios as are merely intended to facilitate and distinctly illustrate the embodiments of the present invention.
Referring to fig. 1 and 2, the present embodiment provides a device for detecting a dusting rate of household paper, including a fixing plate 1, a connecting seat 2, a telescopic portion, a fixed clamp, a movable clamp, a paper carrier, and a weighing portion.
The fixing plate 1 is provided with a through groove along the thickness direction of the plate surface of the fixing plate 1, and the through groove is a through long groove for allowing parts to pass through the fixing plate 1; the connecting seat 2 is arranged on the upper plate surface of the fixing plate 1, the connecting seat 2 is connected with the upper plate surface in a sliding mode, the sliding connection means that the connecting seat 2 moves along the length direction of the through groove, the connecting seat 2 can be controlled by the linear driving device to move along the through groove, and the sliding connection is used for enabling the connecting seat 2 to do linear motion.
The linear driving device for linear motion can be a crank-slider mechanism, a rack-and-pinion mechanism and a lead screw guide rail mechanism, the crank-slider mechanism is formed by connecting a motor 81 with a crank, the crank is connected with a connecting rod 83, the connecting rod 83 is connected with the connecting seat 2, and the connection between the crank and the connecting rod 83, and the connection between the connecting rod 83 and the connecting seat 2 are revolute pairs; the rack and pinion mechanism is that a rack is installed on the fixed plate 1 by using a guide rail, a pinion is connected with a motor and meshed with the rack, the motor rotates to drive the rack to move linearly on the guide rail, and the connecting seat 2 is installed on the rack; the screw rod guide rail mechanism is characterized in that a guide rail seat is arranged on the fixing plate 1, a screw rod is arranged in the center of the guide rail seat, the connecting seat 2 is simultaneously connected with the guide rail seat and the screw rod, and the screw rod is connected with a motor, so that the rotation of the motor is converted into the linear motion of the connecting seat 2. The linear driving device is simple and common, high in reliability and low in cost.
The drive module of pars contractilis install in on the connecting seat 2, the flexible direction of pars contractilis does 1 face thickness direction of fixed plate, the pars contractilis is for exporting concertina movement, and conventional cylinder and hydro-cylinder can all realize stable concertina movement.
The fixed clamp comprises a first body 41 and a first chuck 42, the first body 41 is arranged in the projection space range of the through groove, the first end of the first body 41 is fixedly connected with the connecting seat 2 and is positioned above the through groove, the second end of the first body 41 is positioned below the through groove, the first chuck 42 is arranged at the second end of the first body 41, and the fixed clamp penetrates through the through groove to be connected with the connecting seat 2 and can move linearly along with the connecting seat 2.
The movable clamp comprises a second body 51 and a second chuck 52, the second body 51 is located on the first vertical side of the first body 41, the second body 51 is arranged in the projection space range of the through groove, the first end of the second body 51 is fixedly connected with the telescopic end of the telescopic part, the second end of the second body 51 is arranged in the projection space below the second end of the first body 41, the second chuck 52 is arranged at the second end of the second body 51 and is located right below the first chuck 42, the second chuck 52 of the movable clamp corresponds to the first chuck 42 of the fixed clamp, and the movable clamp can be matched with the fixed clamp to clamp a part under the driving of the telescopic part; the second chuck 52 includes first overlap joint arm and second overlap joint arm, first overlap joint arm with second overlap joint arm parallel arrangement just is equipped with first overlap joint clearance, and second chuck 52 divide into two parts, two overlap joint arms about setting up, and middle cavity can supply the object to pass. Move anchor clamps and connect in the pars contractilis, the pars contractilis is connected in connecting seat 2, that is to say move anchor clamps and also do linear motion along with connecting seat 2.
The paper carrier includes overlap joint horizontal pole 61, vertical connecting rod 62, carrier body 63, the upper end of vertical connecting rod 62 with the interlude of overlap joint horizontal pole 61 links firmly perpendicularly, vertical connecting rod 62 lower extreme with carrier body 63 connects, overlap joint horizontal pole 61 overlap joint in first overlap joint arm with on the second overlap joint arm, overlap joint horizontal pole 61 overlap joint on the overlap joint arm, vertical connecting rod 62 is arranged in first overlap joint clearance, also is the hollow portion in the middle of the overlap joint arm, and carrier body 63 is used for bearing life paper 9.
The weighing part comprises a mass sensor 71 and a cantilever 72 which is horizontally arranged, the mass sensor 71 is a sensor for weighing, the cantilever 72 comprises a first cantilever and a second cantilever, one end of the first cantilever and one end of the second cantilever are connected with the mass sensor 71, the other end of the first cantilever and the other end of the second cantilever are provided with a measuring groove for weighing, the measuring groove is arranged in a projection space at the lower part of the through groove, at least one position of the second chuck 52 is right above the measuring groove and at least one position of the second chuck is right below the measuring groove during movement, a second lap joint gap is arranged between the first cantilever and the second cantilever, the lap joint cross rod 61 can be lapped on the measuring groove on the first cantilever and the second cantilever, the movable clamp can vertically move in the second lap joint gap, the cantilever 72 and the lap joint arms are divided into two parts, and a left cantilever and a right cantilever 72 are arranged, the middle is hollow, the movable clamp can freely shuttle in a second lap joint gap of the cantilever 72 during telescopic motion, namely, the movable clamp shuttles in the hollow part, the movable clamp descends to a certain height, the lap joint cross rod 61 is blocked by the cantilever 72 and then laps on the cantilever 72, and the cantilever 72 transmits weight to the mass sensor 71 to finish weighing.
Further, the linear driving device includes a motor 81, a swing mechanism, a connecting rod 83, and a linear guide 86. A motor 81 provided on the fixing plate 1; the swing mechanism is arranged on the motor shaft and can be driven by the motor 81 to do circular motion; a connecting rod 83, one end of the connecting rod 83 is provided with a first rod end joint bearing 84, the other end of the connecting rod is provided with a second rod end joint bearing 85, the first rod end joint bearing 84 is connected to the swing mechanism, the center of the inner spherical surface of the first rod end joint bearing 84 has a certain distance with the center of the motor shaft, and the second rod end joint bearing 85 is connected to the connecting seat 2; the linear guide rail 86 is arranged on the fixing plate 1, and the connecting seat 2 is arranged on the linear guide rail 86; the swing mechanism performs circular motion and drives the connecting seat 2 to perform linear motion on the linear guide rail 86 through conduction of the connecting rod 83, a crank connecting rod mechanism is used, the motor 81 is rotated and converted into linear motion, the structure is simple, and the cost is low.
Furthermore, the slewing mechanism is a circular slewing wheel 82, the center of the circular slewing wheel 82 is connected with the motor shaft, the circular slewing wheel 82 is a derivative structure of a crank-link mechanism, the function of the circular slewing wheel is the same as that of a crank, and the circular slewing wheel has the advantages of simple structure, small circular slewing bounce and stable structure.
Furthermore, the circular rotating wheel 82 is hollow in a partial area, and the hollow can reduce the weight.
Furthermore, rotation mechanism is shaft-like crank, shaft-like crank one end connect in the motor shaft, shaft-like crank simple structure is convenient.
Furthermore, the number of the linear guide rails 86 is two, so that the structure is more stable and reliable.
Further, the telescopic part is cylinder 3, install in on the connecting seat 2, the flexible direction of 3 piston rods of cylinder is 1 face thickness direction of fixed plate, and cylinder 3 is the flexible part commonly used, and is with low costs, efficient, and the reliability is high.
Furthermore, the first overlapping arm and the second overlapping arm of the first chuck 42 and the second chuck 52 are both provided with grooves, so that friction force and clamping force are increased, and clamping is more reliable.
Further, including leading wheel 10, leading wheel 10 is located the adjacent vertical side of first body 41, just leading wheel 10 with a vertical side of second body 51 contacts, when moving anchor clamps and being concertina movement leading wheel 10 contacts with second body 51 all the time, sets up leading wheel 10 and can not produce the skew because of factors such as vibrations when making to move anchor clamps flexible for the device reliability is high.
Further, the carrier body 63 of the paper carrier is a clip which is a common part and is simple and convenient.
In addition, referring to fig. 3 and 4, the entire apparatus is mounted in a casing 100, and the casing 100 is provided with a pressure regulating valve 101 for regulating the pressure of the cylinder, an emergency stop button 102, a printer 103 for printing detection data, a screen 104, and a switch button 105.
During the operation, the paper carrier is lapped on the movable clamp, the household paper 9 is connected to the paper carrier, the telescopic part makes retraction motion to make the movable clamp and the fixed clamp cooperate to clamp the paper carrier, the linear driving device makes the fixed clamp, the movable clamp, the telescopic part, the paper carrier and the household paper 9 make linear motion along with the connecting seat 2, when the movable clamp moves right above the measuring groove of the cantilever 72, the telescopic part makes extension motion, the movable clamp moves downwards to enter the second lapping gap of the cantilever 72, the lapping cross rod 61 of the paper carrier is blocked by the cantilever 72, the lapping cross rod 61 is lapped on the cantilever 72, the cantilever 72 transmits weight to the mass sensor 71 to finish the first weighing, then the telescopic part makes retraction motion, the movable clamp rises, the lapping cross rod 61 is lapped on the movable clamp again and is clamped, the linear driving device drives the connecting seat 2 to a corresponding position to make short-distance high-frequency reciprocating motion, the powder of the household paper is shaken off, the household paper is moved to the weighing part again to be weighed for the second time, the powder falling rate is automatically calculated according to the mass difference, the automatic weighing function of the household paper is realized, and the automatic weighing device has the advantages of high testing accuracy and high testing efficiency.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, the changes are still within the scope of the present invention if they fall within the scope of the claims and their equivalents.
Claims (10)
1. A household paper powder falling rate detection device is characterized by comprising:
the fixing plate is provided with a through groove along the thickness direction of the plate surface of the fixing plate;
the connecting seat is arranged on the upper plate surface of the fixing plate and is in sliding connection with the upper plate surface, the sliding connection means that the connecting seat moves along the length direction of the through groove, and the connecting seat can be controlled by a linear driving device to move along the through groove;
the driving module of the telescopic part is arranged on the connecting seat, and the telescopic direction of the telescopic part is the thickness direction of the surface of the fixed plate;
the fixed clamp comprises a first body and a first chuck, the first body is arranged in the projection space range of the through groove, the first end of the first body is fixedly connected with the connecting seat and is positioned above the through groove, the second end of the first body is positioned below the through groove, and the first chuck is arranged at the second end of the first body;
the movable clamp comprises a second body and a second chuck, the second body is positioned on the first vertical side of the first body, the second body is arranged in the projection space range of the through groove, the first end of the second body is fixedly connected with the telescopic end of the telescopic part, the second end of the second body is arranged in the projection space below the second end of the first body, the second chuck is arranged at the second end of the second body and is positioned under the first chuck, the second chuck comprises a first lap joint arm and a second lap joint arm, and the first lap joint arm and the second lap joint arm are arranged in parallel and are provided with a first lap joint gap;
the paper carrier comprises an overlapping cross rod, a vertical connecting rod and a carrier body, wherein the upper end of the vertical connecting rod is vertically and fixedly connected with the middle section of the overlapping cross rod, the lower end of the vertical connecting rod is connected with the carrier body, and the overlapping cross rod is overlapped on the first overlapping arm and the second overlapping arm;
the weighing part comprises a mass sensor and a cantilever horizontally arranged, the cantilever comprises a first cantilever and a second cantilever, one end of the first cantilever and one end of the second cantilever are connected to the mass sensor, the other end of the first cantilever and the other end of the second cantilever are provided with a measuring groove used for weighing, the measuring groove is arranged in a projection space penetrating through the lower part of the measuring groove, the second chuck is at least in one position right above the measuring groove and at least in one position right below the measuring groove when moving, a second lap joint gap is arranged between the first cantilever and the second cantilever, a lap joint cross rod can be lapped on the first cantilever and the second cantilever on the measuring groove, and the movable clamp can vertically move in the second lap joint gap.
2. The household paper dusting rate detection device according to claim 1, wherein the linear driving device comprises:
the motor is arranged on the fixing plate;
the swing mechanism is arranged on the motor shaft and can be driven by the motor to do circular motion;
a first rod end joint bearing is arranged at one end of the connecting rod, a second rod end joint bearing is arranged at the other end of the connecting rod, the first rod end joint bearing is connected to the swing mechanism, a certain distance is reserved between the center of the inner spherical surface of the first rod end joint bearing and the center of the motor shaft, and the second rod end joint bearing is connected to the connecting seat;
the linear guide rail is arranged on the fixing plate, and the connecting seat is arranged on the linear guide rail;
the rotary mechanism does circular motion and drives the connecting seat to do linear motion on the linear guide rail through the conduction of the connecting rod.
3. The device for detecting the dusting rate of household paper as claimed in claim 2, wherein the revolving mechanism is a circular revolving wheel, and the center of the circular revolving wheel is connected with the motor shaft.
4. The household paper dusting rate detection device of claim 3, wherein the circular rotating wheel is partially hollow.
5. The device for detecting the dusting rate of household paper as claimed in claim 2, wherein the rotating mechanism is a rod crank, and one end of the rod crank is connected to the motor shaft.
6. The device for detecting the dusting rate of household paper according to claim 2, wherein the number of the linear guide rails is two.
7. The device for detecting the powder falling rate of the household paper as claimed in claim 1, wherein the telescopic part is an air cylinder and is mounted on the connecting seat, and the telescopic direction of the piston rod of the air cylinder is the thickness direction of the plate surface of the fixing plate.
8. The device for detecting the dusting rate of household paper according to claim 1, wherein the first and second overlapping arms of the first and second chucks are provided with grooves.
9. The household paper powder falling rate detection device according to any one of claims 1 to 8, characterized by comprising a guide wheel, wherein the guide wheel is arranged on a vertical side surface adjacent to the first vertical side of the first body, the guide wheel is in contact with one vertical side surface of the second body, and the guide wheel is in contact with the second body all the time when the movable clamp moves in a telescopic manner.
10. The device for detecting the dusting rate of household paper according to any one of claims 1 to 8, wherein the carrier body of the paper carrier is a clip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921025401.7U CN210775108U (en) | 2019-07-03 | 2019-07-03 | Household paper powder falling rate detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921025401.7U CN210775108U (en) | 2019-07-03 | 2019-07-03 | Household paper powder falling rate detection device |
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| Publication Number | Publication Date |
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| CN210775108U true CN210775108U (en) | 2020-06-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921025401.7U Active CN210775108U (en) | 2019-07-03 | 2019-07-03 | Household paper powder falling rate detection device |
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| CN (1) | CN210775108U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110333161A (en) * | 2019-07-03 | 2019-10-15 | 杭州品享科技有限公司 | A kind of paper for daily use picking rate detection device |
-
2019
- 2019-07-03 CN CN201921025401.7U patent/CN210775108U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110333161A (en) * | 2019-07-03 | 2019-10-15 | 杭州品享科技有限公司 | A kind of paper for daily use picking rate detection device |
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