CN109605962B - Environment-friendly building block impression identification device - Google Patents
Environment-friendly building block impression identification device Download PDFInfo
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- CN109605962B CN109605962B CN201811520841.XA CN201811520841A CN109605962B CN 109605962 B CN109605962 B CN 109605962B CN 201811520841 A CN201811520841 A CN 201811520841A CN 109605962 B CN109605962 B CN 109605962B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41K—STAMPS; STAMPING OR NUMBERING APPARATUS OR DEVICES
- B41K3/00—Apparatus for stamping articles having integral means for supporting the articles to be stamped
- B41K3/36—Apparatus for stamping articles having integral means for supporting the articles to be stamped with means for deforming or punching the copy matter
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41K—STAMPS; STAMPING OR NUMBERING APPARATUS OR DEVICES
- B41K3/00—Apparatus for stamping articles having integral means for supporting the articles to be stamped
- B41K3/62—Details or accessories
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- Inking, Control Or Cleaning Of Printing Machines (AREA)
- Manufacture Or Reproduction Of Printing Formes (AREA)
Abstract
The invention relates to the field of printing equipment, and discloses an environment-friendly building block embossing identification device which comprises a substrate, an embossing mechanism and a cleaning mechanism, wherein the embossing mechanism comprises a base plate, a stamping mechanism body and a cleaning mechanism body; the stamping mechanism is vertically arranged on the substrate and comprises a movable plate and a rolling device, the movable plate is connected with the substrate in a sliding mode, the rolling device comprises a stamping cylinder, a cam shaft and a driving gear, the cam shaft is vertically arranged on the movable plate, the stamping cylinder is sleeved outside the cam shaft, a plurality of through holes are formed in the stamping cylinder, stamping blocks are arranged in the through holes, and the driving gear is fixedly arranged on the upper end face of the stamping cylinder; the cleaning mechanism comprises a cylindrical cam, a transmission shaft, a driven rod, an air cylinder, an air nozzle and an atomizer. The device with the structure can realize that longer character information can be marked by adopting one marking roller, the mark is clearer, and the device has an automatic cleaning function.
Description
Technical Field
The invention relates to the field of processing of building block blanks, in particular to an environment-friendly building block stamping and marking device.
Background
The concrete is used as an important component of wall material innovation and building energy conservation, is an ideal wall material for replacing clay bricks after years of application and practice proves, has the advantages of light weight, good heat insulation performance, good sound absorption effect, certain strength, processability and the like, and is widely applied to buildings as a filling and heat insulation material of a building envelope. According to the types and the quality of raw materials, the process characteristics of main equipment and the like, different processes are adopted for production.
When the aerated concrete block is produced, in order to distinguish blocks with different specifications from blocks made of different materials, characters need to be engraved on the surface of a blank body for identification. The common building block identification means comprises a code spraying identification and an engraving identification, and the code spraying identification wastes a large amount of consumables, is not environment-friendly and is easy to obscure. The marking marks are adopted in large quantities because of no waste, environmental protection and clear marks. The invention patent with the application number of CN 106313880A discloses an online automatic identification device for an aerated block blank and a use method thereof.A plurality of identification rollers are distributed on a push plate along the axial direction of the push plate, when the aerated block blank passes through, the inclination angle is changed to enable the identification rollers to be sequentially contacted with the side surface of the aerated block blank, and then the side surface of the aerated block blank is marked with an identification. Although the invention can engrave longer character information on the side surface of the blank, because the number of characters which can be engraved by each marking roller is less, the method needs to adopt a plurality of marking rollers, the structure is huge, the marking rollers are easy to stick with blank crushed aggregates, and the marks are unclear if the engraving time is short.
Disclosure of Invention
The invention aims to provide an environment-friendly building block embossing identification device which can identify longer character information by adopting an identification roller, has clearer identification and has an automatic cleaning function.
In order to achieve the above purpose, the basic scheme of the invention is as follows:
the environment-friendly building block imprinting identification device comprises a substrate, an imprinting mechanism and a cleaning mechanism, wherein the substrate is fixedly connected with the ground, the upper surface of the substrate is provided with a guide rail, and the axis of the guide rail vertically points to the side surface of a building block; the embossing mechanism is vertically arranged on the base plate and comprises a movable plate and a rolling device, the movable plate is in sliding connection with the base plate, the rolling device comprises an embossing cylinder, a cam shaft and a driving gear, the cam shaft is vertically arranged on the movable plate, two ends of the cam shaft are arranged into a cylinder shape, the lower end of the cam shaft is fixedly connected with the movable plate, the connecting line of the center of the base circle of the cam shaft and the vertex of the cam is vertically directed to the side face of the building block, the embossing cylinder is in a cylinder shape with two open ends, the embossing cylinder is sleeved outside the cam shaft, the inner diameter of the embossing cylinder is larger than the maximum rotating diameter of the cam shaft, the embossing cylinder and the cam shaft are rotationally connected through a bearing, the outer circle of the embossing cylinder is divided into a friction part and a printing part, the friction part is arranged at two ends of the embossing cylinder, the outer diameter of, the stamping block is arranged in the through hole and is in sliding connection with the through hole, the inner end face of the stamping block is in contact with the outer circle of the camshaft, the outer end face of the stamping block extends out of the outer wall of the stamping cylinder, characters are engraved in the sun on the outer end face of the stamping block, a limiting block is arranged at the inner end of the stamping block, a pressure spring is connected between the limiting block and the inner wall of the stamping cylinder, the driving gear is fixedly connected with the upper end face of the stamping cylinder, and the; the cleaning mechanism comprises a cylindrical cam, a transmission shaft, a driven rod and an air cylinder, the transmission shaft is vertically arranged on the movable plate, the lower end of the transmission shaft is rotationally connected with the movable plate, the transmission shaft upper end be connected with driving gear engaged's driven gear, the cylindrical cam cover is established outside the transmission shaft and is connected with transmission shaft fixed connection, the inflator is vertical to be set up on the movable plate, the inflator includes barrel, piston rod lower extreme and piston fixed connection, piston rod upper end stretch out the barrel outer with driven lever fixed connection, the driven lever other end and the cam groove sliding connection on the cylindrical cam, be equipped with the check valve and the check valve that admits air on the inflator, the camshaft upper end has set firmly the connecting plate, the transmission shaft upper end is rotated with the connecting plate and is connected, be provided with air cock, atomizer and water tank on the connecting plate, the check valve that gives vent.
The principle of the marking device for the environment-friendly building block is as follows:
the movable plate is pushed to slide along the guide rail to the direction close to the blank body, so that the friction part on the stamping cylinder is contacted with the side face of the blank body to be engraved, when the block blank body moves forwards, the stamping cylinder is rotated by friction force, the inner end face of the stamping block abuts against the excircle of the cam shaft under the thrust of the pressure spring, at the moment, the outer end face of the stamping block extends outwards to be not more than the outer cylindrical face of the friction part, the stamping block rotates along with the rotation of the stamping cylinder, when the outer end face of the stamping block rotates to be aligned with the block blank body, the vertex of the cam pushes the stamping block outwards, the outer end face of the stamping block extends outwards to exceed the outer cylindrical face of the friction part, characters engraved on the outer end face of the stamping block are stamped on the side face of the block blank body, the blank body continues to move forwards, the stamping cylinder continues to rotate, the stamping block which exceeds the vertex of the cam retracts towards the inside, stamping the side surface of the blank; when the impression cylinder rotates, the driving gear fixedly connected to the top surface of the impression cylinder rotates synchronously with the impression cylinder, the driven gear meshed with the driving gear rotates reversely, the transmission shaft rotates reversely, the cylindrical cam rotates reversely, the driven rod connected with the cylindrical cam sliding groove in a sliding manner drives the piston rod to reciprocate up and down, the piston fixedly connected with the piston rod also reciprocates up and down, when the piston moves downwards, the cavity at the upper end of the air cylinder increases air pressure and reduces the air pressure, the upper air outlet one-way valve arranged at the upper end of the air cylinder is closed, the upper air inlet one-way valve is opened, external air flow enters the inner cavity at the upper end of the air cylinder through the upper air inlet one-way valve, the cavity at the lower end of the air cylinder reduces the air pressure and increases the air pressure, the lower air outlet one-way valve at the lower end of the air cylinder is opened, the lower air inlet one, and spraying and diluting the concrete scraps possibly adhered to the outer end face of the embossing block, and cleaning the concrete scraps on the outer end face of the embossing block by high-pressure air flow sprayed by the air nozzle.
The beneficial effect of this scheme is:
the number of engraved character words is increased by arranging the embossing blocks in a spiral arrangement on the circumference of the embossing cylinder, more character information can be embossed by using one embossing cylinder, and the embossing identification device has a compact structure and is convenient to operate.
Through the arrangement of the gear transmission, the cylindrical cam, the air cylinder and the water tank, the embossing block is automatically cleaned, and the problem that the embossing block is unclear due to the fact that concrete scraps are often stuck on the embossing block under the actual condition is solved.
Preferably, in the first technical scheme, as a further optimization of the basic scheme, oxford is arranged on the outer cylindrical surface of the friction part. The friction force between the stamping cylinder and the side surface of the blank body is increased, and the discontinuity of the stamping caused by the sliding of the stamping cylinder and the side surface of the blank body is avoided.
Preferably, as a further optimization of the basic scheme, the cross section of the stamping block is square, and the through hole matched with the stamping block is square. The square hole can avoid the discordance of the character direction caused by the rotation of the stamping block by matching with the square block.
Preferably, as a further optimization of the basic scheme, a sliding groove matched with the guide rail is arranged on the base plate, the sliding groove is a dovetail groove, and the guide rail is a dovetail guide rail. The dovetail groove and the dovetail guide rail are matched and guided stably and reliably, and the moving plate can be prevented from being separated from the base plate upwards.
Preferably scheme four, as the further optimization to basic scheme, still set firmly the base on the base plate, be equipped with the internal thread through-hole on the base, pass with internal thread through-hole complex threaded rod one end the internal thread through-hole rotates with the movable plate to be connected, and threaded rod other end fixedly connected with hand wheel, the internal thread of internal thread through-hole is trapezoidal thread, with the external screw thread of internal thread complex threaded rod is trapezoidal thread. The trapezoidal thread fit has stable transmission and a self-locking function, and can effectively prevent the moving plate from moving due to the reaction force of the blank.
Preferably, as a further optimization of the basic scheme, the transmission ratio of the driving gear to the driven gear is less than 1. The rotating speed of the driven gear is improved, the resistance of the stamping cylinder is reduced, the reciprocating motion speed of the piston is accelerated, the airflow flow is increased, and the cleaning degree of the stamping cylinder is improved.
Drawings
Fig. 1 is a schematic structural view of an embodiment of the environmental-friendly block stamping identification device.
Fig. 2 is a top view of an embodiment of the environmentally friendly block embossing identification device of the present invention.
Fig. 3 is a view showing arrangement of the stamp blocks on the impression cylinder.
Fig. 4 is a schematic view of the internal structure of the impression cylinder.
Fig. 5 is an enlarged view of a portion a in fig. 4.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: the stamping device comprises a base plate 11, a base 12, a moving plate 21, a stamping cylinder 211, a cam shaft 212, a driving gear 213, a friction part 214, a printing part 215, a stamping block 216, a limiting block 217, a pressure spring 218, a cylindrical cam 311, a transmission shaft 312, a driven rod 313, an air cylinder 314, a piston rod 3141, a piston 3142, a driven gear 315, a connecting plate 316, an air nozzle 317, an atomizer 318, a water tank 319, a threaded rod 22, a hand wheel 23 and a blank body 41.
The embodiments are substantially as shown in figures 1, 2, 3, 4 and 5:
the environment-friendly building block imprinting identification device comprises a substrate 11, an imprinting mechanism and a cleaning mechanism, wherein the substrate 11 is fixedly connected with the ground, the upper surface of the substrate 11 is provided with a guide rail which is a dovetail guide rail, and the axis of the guide rail vertically points to the side surface of a green body 41; the stamping mechanism is vertically arranged on the base plate 11 and comprises a moving plate 21 and a rolling device, a sliding groove matched with the guide rail is formed in the moving plate 21 and is a dovetail groove, the moving plate 21 is connected with the base plate 11 in a sliding mode, and the moving plate 21 can slide along the axis direction of the guide rail.
The rolling device comprises an embossing cylinder 211, a camshaft 212 and a driving gear 213, wherein the camshaft 212 is vertically arranged on a movable plate 21, two ends of the camshaft 212 are provided with cylindrical polish rods, the lower end of the camshaft 212 is fixedly connected with the movable plate 21, a connecting line of the base circle center of the camshaft 212 and the top point of a cam vertically points to the side surface of a blank 41, the embossing cylinder 211 is in a cylindrical shape with two open ends, the embossing cylinder 211 is sleeved outside the camshaft 212, the inner diameter of the embossing cylinder 211 is larger than the maximum rotation diameter of the camshaft 212, the embossing cylinder 211 and the camshaft 212 are rotationally connected through a bearing, the outer circle of the embossing cylinder 211 is divided into a friction part 214 and a printing part 215, the friction part 214 is arranged at two ends of the embossing cylinder 211, the outer diameter of the friction part 214 is larger than the outer diameter of the printing part 215, in order to increase the friction force between the friction part 214 and the, the through holes are square holes, the through holes are spirally distributed on the printing portion 215 of the stamping cylinder 211, stamping blocks 216 are arranged in the through holes, the cross section of each stamping block 216 is square, the stamping blocks 216 are connected with the through holes in a sliding mode, the inner end face of each stamping block 216 is in contact with the outer circle of the cam shaft 212, the outer end face of each stamping block 216 extends out of the outer wall of the stamping cylinder 211, characters are engraved in the sun on the outer end face of each stamping block 216, a limiting block 217 is arranged at one end, close to the cam shaft 212, of each stamping block 216, a pressure spring 218 is connected between each limiting block 217 and the inner wall of the stamping cylinder 211, the driving gear 213 is fixedly connected with the.
The cleaning mechanism comprises a cylindrical cam 311, a transmission shaft 312, a driven rod 313 and an air cylinder 314, the transmission shaft 312 is vertically arranged on the movable plate 21, the lower end of the transmission shaft 312 is rotatably connected with the movable plate 21, the upper end key of the transmission shaft 312 is connected with a driven gear 315, the driven gear 315 is meshed with a driving gear 213, the transmission ratio of the driving gear 213 to the driven gear 315 is 0.5, the cylindrical cam 311 is sleeved outside the transmission shaft 312 and fixedly connected with the transmission shaft 312, the air cylinder 314 is vertically arranged on the movable plate 21, the air cylinder 314 comprises a cylinder body, a piston rod 3141 and a piston 3142, the lower end of the piston rod 3141 is fixedly connected with the piston 3142, the upper end of the piston rod 3141 extends out of the cylinder body and is fixedly connected with the driven rod 313, the other end of the driven rod 313 is slidably connected with a cam groove on the cylindrical cam 311, the upper end of the cam shaft 212 is fixedly provided with a connecting plate 316, the connecting plate 316 is fixedly connected with the cam shaft 212, the upper end of the transmission shaft 312 is rotatably connected with the connecting plate 316, the connecting plate 316 is provided with an air nozzle 317, an atomizer 318 and a water tank 319, the air nozzle 317 adopts an MJS-6-AM air nozzle, the atomizer 318 adopts an LPG-5 centrifugal atomizer, the upper air outlet one-way valve and the lower air outlet one-way valve are connected with the air nozzle 317 and the atomizer 318 through air pipes, the water tank 319 is connected with the atomizer 318 through a water pipe, the base plate 11 is further fixedly provided with a base 12, the base 12 is provided with an internal thread through hole, the internal thread is a trapezoidal internal thread, a trapezoidal external thread matched with the trapezoidal internal thread is arranged on the threaded rod 22, one end.
The specific working process of the marking device for the environment-friendly building blocks comprises the following steps:
the hand wheel 23 is rotated to adjust the threaded rod 22, the threaded rod 22 matched with the internal thread on the base 12 moves towards the direction close to the blank 41, so that the moving plate 21 is pushed to slide along the guide rail towards the direction close to the blank 41, the friction part 214 arranged on the stamping cylinder 211 on the moving plate 21 is contacted with the side surface of the blank 41 to be imprinted, when the block blank 41 moves forwards, the stamping cylinder 211 is rotated by the friction force, the inner end surface of the stamping block 216 abuts against the outer circle of the cam shaft 212 under the thrust of the pressure spring 218, the outer end surface of the stamping block 216 extends outwards not to exceed the outer cylindrical surface of the friction part 214, the stamping block 216 rotates along with the rotation of the stamping cylinder 211, when the stamping block 216 rotates to the position that the outer end surface is aligned with the block blank 41, the inner end surface of the stamping block 216 is at the top point of the cam, the top point of the cam pushes the stamping block 216 outwards, the outer end surface, the characters engraved by the sun on the outer end face of the stamping block 216 are stamped on the side face of the block blank 41, the blank 41 moves forwards continuously, the stamping cylinder 211 rotates continuously, the stamping block 216 beyond the top point of the cam retracts into the stamping cylinder 211 under the thrust of the pressure spring 218, and then the next stamping block 216 rotates to the top point of the cam to stamp the side face of the blank 41; when the impression cylinder 211 rotates, the driving gear 213 fixedly connected to the top surface of the impression cylinder 211 rotates synchronously with the impression cylinder 211, the driven gear 315 engaged with the driving gear 213 rotates reversely, the transmission shaft 312 rotates reversely, the cylindrical cam 311 rotates reversely, the driven rod 313 slidably connected to the sliding groove of the cylindrical cam 311 drives the piston rod 3141 to reciprocate up and down, the piston 3142 fixedly connected to the piston rod 3141 also reciprocates up and down, when the piston 3142 moves down, the upper end cavity of the air cylinder 314 increases and decreases in air pressure, the upper air outlet check valve closes, the upper air inlet check valve opens, the external air flow enters the upper end cavity of the air cylinder 314 through the upper air inlet check valve, the lower end cavity of the air cylinder 314 decreases and increases in air pressure, the lower air inlet check valve opens, the lower air inlet check valve closes, the high pressure air flow flows to the air tap 317 and the sprayer 318 through the lower air outlet check valve, the sprayer 318 sprays to the printing part 215 on the, concrete chips, which may adhere to the outer end surface of the embossing block 216, are sprayed and diluted, so that the viscosity of the concrete chips is reduced, meanwhile, the high-pressure air flow ejected by the air nozzle 317 blows and cleans the concrete scraps on the outer end face of the stamping block 216, blows off the concrete scraps adhered on the outer end face of the stamping block 216, to prevent the air-swept concrete chips from splashing onto the sides of the block blank 41, the spray 318 and air jets 317 are directed away from the block blank 41, when the piston 3142 moves upward, the increased air pressure in the lower cavity of the piston 3142 is reduced to close the lower outlet check valve, the lower inlet check valve is opened, the external air flows through the lower inlet check valve into the lower cavity of the air cylinder 314, the reduced air pressure in the upper cavity of the air cylinder 314 is increased to open the upper outlet check valve, the upper inlet check valve is closed, and the high-pressure air flows through the upper outlet check valve to the air tap 317 and the sprayer 318.
The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (6)
1. Environmental protection building block impression identification means, its characterized in that: the stamping device comprises a base plate, a stamping mechanism and a cleaning mechanism, wherein a guide rail is arranged on the upper surface of the base plate, the stamping mechanism is vertically arranged on the base plate and comprises a movable plate and a rolling device, the movable plate is connected with the base plate in a sliding manner, the rolling device comprises a stamping cylinder, a cam shaft and a driving gear, the cam shaft is vertically arranged on the movable plate, the lower end of the cam shaft is fixedly connected with the movable plate, the connecting line of the center of the base circle of the cam shaft and the vertex of the cam is vertically directed to the side surface of a building block, the stamping cylinder is sleeved outside the cam shaft, the inner diameter of the stamping cylinder is larger than the maximum rotation diameter of the cam shaft, the outer circle of the stamping cylinder is divided into a friction part and a printing part, a plurality of through holes for communicating the inner space and the outer space of the stamping cylinder are arranged and distributed on the, the outer end face of the stamping block extends out of the outer wall of the stamping cylinder, a limiting block is arranged at the inner end of the stamping block, a pressure spring is connected between the limiting block and the inner wall of the stamping cylinder, and the driving gear is fixedly connected with the upper end face of the stamping cylinder; the cleaning mechanism comprises a cylindrical cam, a transmission shaft, a driven rod and an air cylinder, the transmission shaft is vertically arranged on the movable plate, the lower end of the transmission shaft is rotatably connected with the movable plate, the upper end of the transmission shaft is connected with a driven gear meshed with the driving gear, the cylindrical cam is sleeved outside the transmission shaft and fixedly connected with the transmission shaft, the air cylinder is vertically arranged on the movable plate, the air cylinder comprises a cylinder body, a piston and a piston rod, the lower end of the piston rod is fixedly connected with the piston, the upper end of the piston rod extends out, the driven lever other end and the cam groove sliding connection on the cylindrical cam are equipped with the check valve of giving vent to anger and the check valve that admits air on the inflator, and the camshaft upper end has set firmly the connecting plate, and the transmission shaft upper end is rotated with the connecting plate and is connected, is provided with air cock, atomizer and water tank on the connecting plate, the check valve of giving vent to anger with the air cock with the atomizer is connected, and the water tank is connected with the atomizer.
2. The environmentally friendly block imprinted identification device according to claim 1, wherein: and the outer cylindrical surface of the friction part is provided with oxford.
3. The environmentally friendly block imprinted identification device according to claim 1, wherein: the shape of the through hole is set to be a square hole, and the shape of the cross section of the stamping block is set to be square.
4. The environmentally friendly block imprinted identification device according to claim 1, wherein: the base plate is provided with a sliding groove matched with the guide rail, the sliding groove is a dovetail groove, and the guide rail is a dovetail guide rail.
5. The environmentally friendly block imprinted identification device according to claim 1, wherein: the base plate is further fixedly provided with a base, an internal thread through hole is formed in the base, one end of a threaded rod matched with the internal thread through hole penetrates through the internal thread through hole to be rotatably connected with the movable plate, the internal thread of the internal thread through hole is a trapezoidal thread, and the external thread of the threaded rod matched with the internal thread is a trapezoidal thread.
6. The environmentally friendly block imprinted identification device according to claim 1, wherein: the transmission ratio of the driving gear to the driven gear is less than 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811520841.XA CN109605962B (en) | 2018-12-12 | 2018-12-12 | Environment-friendly building block impression identification device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811520841.XA CN109605962B (en) | 2018-12-12 | 2018-12-12 | Environment-friendly building block impression identification device |
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| CN109605962A CN109605962A (en) | 2019-04-12 |
| CN109605962B true CN109605962B (en) | 2020-10-30 |
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| CN114544308A (en) * | 2022-01-26 | 2022-05-27 | 中船重工海鑫工程管理(北京)有限公司 | Supervision is with multi-functional sampling device |
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| JP3049110B2 (en) * | 1991-04-15 | 2000-06-05 | 大日本印刷株式会社 | Number printer |
| CN1092112C (en) * | 1994-11-30 | 2002-10-09 | 中国科学院金属腐蚀与防护研究所 | Automatic constant pressure rolling-printing machine |
| CN202225559U (en) * | 2011-10-10 | 2012-05-23 | 成都卡美多鞋业有限公司 | Code printing machine capable of printing clearly |
| CN104647574B (en) * | 2015-01-29 | 2017-08-04 | 蒙娜丽莎集团股份有限公司 | A kind of ceramic body anaglyph processing unit (plant) |
| WO2016201664A1 (en) * | 2015-06-18 | 2016-12-22 | 罗明镜 | Printing apparatus |
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| CN205364829U (en) * | 2016-01-25 | 2016-07-06 | 陕西龙山海天艺术印务有限公司 | Version roller washs structure |
| CN206080029U (en) * | 2016-06-18 | 2017-04-12 | 湖北工程学院 | Can approximately commemorate mailbox of postmark |
| CN106313880B (en) * | 2016-08-19 | 2018-07-10 | 安徽建鑫新型墙材科技有限公司 | For the online automatic marking device and its application method of aerated-block green body |
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