CN218397396U - Production calcium silicate edging device for board - Google Patents
Production calcium silicate edging device for board Download PDFInfo
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- CN218397396U CN218397396U CN202222302090.2U CN202222302090U CN218397396U CN 218397396 U CN218397396 U CN 218397396U CN 202222302090 U CN202222302090 U CN 202222302090U CN 218397396 U CN218397396 U CN 218397396U
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Abstract
The utility model discloses an edging device for producing calcium silicate boards, which comprises a first roller conveyor and a second roller conveyor, wherein the first roller conveyor and the second roller conveyor are placed in an L shape; both sides of the first roller conveyor and the second roller conveyor are provided with edge grinding and chamfering devices; a plurality of dust suction ports are arranged above the first roller conveyor and the second roller conveyor and are connected with a dust suction pump in series through pipelines; an aggregate funnel is arranged below each edge grinding chamfering device, a pair of crushing rollers are arranged in the aggregate funnel, a dust suction pump is communicated with the aggregate funnel through a pipeline, and the aggregate funnel conveys waste materials to a transport vehicle through a screw conveyor; the calcium silicate board accomplishes edging and the chamfer process to calcium silicate board four sides after first roller conveyer and second roller conveyer in proper order, and the crushing roller can be broken the waste material that falls into the funnel that gathers materials, and the follow-up screw conveyer of being convenient for carries the waste material, and the dust collection pump sends the dust of collecting into the funnel that gathers materials.
Description
Technical Field
The utility model relates to a calcium silicate board production technical field, concretely relates to production edging device for calcium silicate board.
Background
Calcium silicate board is a neotype green environment-friendly building materials, calcium silicate board has good fire prevention, it is dampproofing, give sound insulation and advantage such as the durability is good, therefore calcium silicate board is by wide application in each field, need make into required size with calcium silicate board when carrying out calcium silicate board production sometimes, thereby need cut the side of calcium silicate board and satisfy customer's demand, some can lead to calcium silicate board out of gear because of the vestige that leaves among the cutting process after cutting calcium silicate board, need use the flattening device from this to carry out edging processing to the avris of calcium silicate board.
In the prior art, a vertical edge grinding machine and a horizontal edge grinding machine are combined to polish both horizontal edges and vertical edges of a calcium silicate board, for example, a sand belt type board edge grinding machine disclosed in chinese patent CN208629148U, wherein a longitudinal edge grinding device and a horizontal edge grinding device are used to polish four edges of a board, but a large amount of waste materials generated after board polishing cannot be recovered, and a large amount of waste materials are generated after calcium silicate board polishing, and the waste materials can be used as pulping raw materials of the calcium silicate board after pretreatment, so that waste of raw materials is reduced and the utilization rate of the raw materials is increased, and therefore, the waste materials need to be recovered to improve the utilization rate of the raw materials;
the method for recycling the waste of the calcium silicate board or fiber cement board production line of the application publication No. CN110423080A in the prior art provides a method for recycling the waste of the calcium silicate board, but does not provide a specific mode and a device for collecting the waste of the calcium silicate board, the waste below an edge grinding machine is often collected manually in actual production, the collection efficiency is low, and the waste is not subjected to preliminary pretreatment.
Disclosure of Invention
The utility model aims at the problem that prior art exists, provide a production edging device for calcium silicate board.
In order to achieve the above object, the utility model adopts the following technical scheme:
an edge grinding device for producing a calcium silicate plate comprises a first roller conveyor and a second roller conveyor, wherein the first roller conveyor and the second roller conveyor are arranged in an L shape; the edge grinding chamfering devices are mounted on two sides of the first roller conveyor and the second roller conveyor; a plurality of dust suction ports are arranged above the first roller conveyor and the second roller conveyor and are connected with a dust suction pump in series through pipelines; every edging chamfer device below all is equipped with the funnel that gathers materials, be equipped with a pair of crushing roller in the funnel that gathers materials, the dust absorption pump passes through the pipeline intercommunication the funnel that gathers materials, the funnel that gathers materials passes through screw conveyer and carries the waste material to the transport vechicle.
The first roller conveyor is matched with the second roller conveyor, so that the four edges of the calcium silicate plate are ground and chamfered after passing through the first roller conveyor and the second roller conveyor in sequence, the calcium silicate plate does not need to be conveyed to different edge grinding machines or the size of the edge grinding machine is adjusted to grind the four edges of the calcium silicate plate, and the production flow is simplified;
the pair of crushing rollers in the aggregate funnel can crush the large waste materials falling into the aggregate funnel to finish waste material pretreatment work, so that the waste materials can be conveniently conveyed by a follow-up screw conveyor, the waste material pretreatment can be synchronously finished when the edge of the calcium silicate plate is ground, the waste materials are not required to be transported to a specified place for pretreatment after being accumulated in a large amount, and the waste material recovery efficiency is improved;
dust pollution that produces when the reducible calcium silicate board edging of dust absorption pump, the dust collection pump will be collected simultaneously and send into the funnel that gathers materials, will retrieve because of the waste material that the calcium silicate board edging was walked to in the air, has further promoted waste recovery rate.
Preferably, the second roller conveyor further comprises a reversing roller, the reversing roller is arranged at one end, close to the first roller conveyor, of the second roller conveyor, and the transmission direction of the reversing roller is parallel to that of the first roller conveyor.
When the calcium silicate board remove extremely first roller conveyer with when between the second roller conveyer, the calcium silicate board with the driving drum of first roller conveyer breaks away from the contact, and the calcium silicate board can lose power this moment, consequently sets up the switching-over gyro wheel, by the switching-over gyro wheel takes over the transportation of first roller conveyer makes the calcium silicate board remove extremely appointed position on the second roller conveyer, treats that the calcium silicate board removes the back that targets in place, stops the switching-over gyro wheel, starts the driving drum of second roller conveyer removes the calcium silicate board and carries out the edging.
Preferably, edging chamfer device includes horizontal edging device, slope chamfer device, horizontal edging device with slope chamfer device all include the motor and by motor drive's the dish of polishing.
The horizontal edging device polishes the side of calcium silicate board, gets rid of burr and the bulge of calcium silicate board side to polish smoothly the side of calcium silicate board, the slope chamfer device sets up through the slope and polishes the side of mill to calcium silicate board and carry out the chamfer processing, and the angle of polishing the mill inclination decision calcium silicate board chamfer.
Preferably, the first roller conveyor and the second roller conveyor are both fixed with the arch-shaped frame, the dust suction ports are fixed at the top of the arch-shaped frame at equal intervals along the conveying direction of the first roller conveyor or the second roller conveyor, and the dust suction pump is fixed at one end of the arch-shaped frame.
Arched frame is used for fixing the dust absorption mouth makes the dust absorption mouth with first roller conveyer or on the second roller conveyer edging chamfer device keeps having a take the altitude, makes the scope that the dust absorption mouth absorbs the dust is bigger, the dust absorption pump with a plurality of the dust absorption mouth utilizes the pipeline to establish ties.
Preferably, the dust absorption pump includes the suction box and has the vacuum pump of filter screen, the suction box includes air inlet, gas outlet and collection dirt mouth, the air inlet sets up the suction box side, the gas outlet sets up the suction box top surface, the collection dirt mouth sets up the suction box bottom surface, the vacuum pump with the gas outlet intercommunication, be equipped with the dust striking plate along the direction of motion of air current in the suction box.
The dust is sucked into the dust suction box through the air inlet and then collides with the dust impact plate, and dust is separated from the gas and falls into the dust collection port by using the principle of an inertial dust collector when dusty gas collides with the dust impact plate; obviously, the higher the speed of the gas before the gas collides with the baffle, the lower the gas after the gas collides, the less dust is carried, the higher the dust removal efficiency is, and the service life of the filter screen of the vacuum pump can be prolonged.
Preferably, the screw conveyer comprises a first screw conveyer and a second screw conveyer, the first screw conveyer and the second screw conveyer are respectively provided with two feed inlets and a discharge outlet, the two material collecting hoppers below the first roller conveyer are respectively connected with the two feed inlets of the first screw conveyer, and the two material collecting hoppers below the second roller conveyer are respectively connected with the two feed inlets of the second screw conveyer.
Utilize single screw conveyer to connect two simultaneously and be in the funnel that gathers materials of same roller conveyer below, improve screw conveyer's availability factor, simplified waste recovery device's structure, made things convenient for arranging of screw conveyer simultaneously, need not to consider the problem that the screw conveyer opportunity that sets up the funnel that gathers materials at rear and the funnel that gathers materials in the place ahead take place the position and overlap.
Preferably, first screw conveyer with the equal slope of second screw conveyer sets up in order to raise the discharge gate, the discharge gate orientation the transport vechicle sets up, the discharge gate is provided with the dust cover.
The first screw conveyer and the second screw conveyer are obliquely arranged, so that discharge ports of the first screw conveyer and the second screw conveyer are higher than the transport vehicle, the first screw conveyer and the second screw conveyer are convenient to unload, and a dust cover is arranged to guide waste materials to fall into the transport vehicle, so that the waste materials are prevented from falling and flying outside the transport vehicle.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) First roller conveyer and the cooperation of second roller conveyer make calcium silicate board accomplish edging and the chamfer process to calcium silicate board four sides behind first roller conveyer and the second roller conveyer in proper order, need not to carry calcium silicate board to different edging machines or adjust the edging machine size and polish calcium silicate board's four sides, simplified the production flow.
(2) A pair of crushing rollers in the aggregate funnel can be broken the bold waste material that falls into the aggregate funnel, accomplishes waste material preliminary treatment work, and the follow-up screw conveyer of being convenient for carries the waste material to accomplish waste material preliminary treatment in step when calcium silicate board edging, need not to pile up in a large number at the waste material and transport again to the appointed place and carry out the preliminary treatment, improved waste recovery's efficiency.
(3) Dust pollution that produces when the reducible calcium silicate board edging of dust absorption pump, the dust collection pump will be collected simultaneously and send into the funnel that gathers materials, will retrieve because of the waste material that the calcium silicate board edging was walked to in the air, has further promoted waste recovery rate.
Drawings
Fig. 1 is a top view of the structure of the present invention;
fig. 2 is a front view of the structure of the present invention;
FIG. 3 is a top view of the present invention with the arched frame, the suction port, and the suction pump removed;
FIG. 4 is a front view of the structure of the material collecting hopper, the screw conveyor and the transport cart of the present invention;
FIG. 5 is a structural plan view of the material collecting hopper, the screw conveyor and the transport cart in the present invention;
FIG. 6 is a sectional view of the structure of the suction pump of the present invention;
in the figure: 1. a first roller conveyor; 2. a second roller conveyor; 3. an edge grinding and chamfering device; 301. a horizontal edge grinding device; 302. an inclined chamfering device; 303. grinding disc; 4. an aggregate funnel; 5. an arched frame; 501. a dust suction port; 502. a dust suction pump; 5021. an air inlet; 5022. an air outlet; 5023. a dust collection port; 5024. a vacuum pump; 5025. a dust impact plate; 6. a screw conveyor; 7. a transport vehicle; 8. a driving roller; 9. and a reversing roller.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the drawings in the present application, and it should be understood that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "middle", "upper", "lower", "left", "right", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
As shown in fig. 1 to 6, an edge grinding device for producing a calcium silicate plate comprises a first roller conveyor 1 and a second roller conveyor 2, wherein the first roller conveyor 1 and the second roller conveyor 2 are placed in an L shape; both sides of the first roller conveyor 1 and the second roller conveyor 2 are provided with edge grinding chamfering devices 3; a plurality of dust suction ports 501 are arranged above the first roller conveyor 1 and the second roller conveyor 2, and the dust suction ports 501 are connected with a dust suction pump 502 in series through pipelines; every edging chamfer device 3 below all is equipped with the funnel 4 that gathers materials, is equipped with a pair of crushing roller in the funnel 4 that gathers materials, and dust absorption pump 502 passes through pipeline intercommunication funnel 4 that gathers materials, and funnel 4 that gathers materials carries the waste material to transport vechicle 7 through screw conveyer 6.
Specifically, first roller conveyer 1 and second roller conveyer 2 all include the frame, and a support, drive arrangement and a plurality of driving pulley 8 that are parallel to each other, the support is fixed in order to support the frame in the frame below, 8 both ends of driving pulley are rotated with the frame and are connected, drive arrangement is used for driving a plurality of driving pulley 8 synchronous revolution or stop, two edging chamfer devices 3 are fixed respectively in the both sides of frame, and the height of the frame of first roller conveyer 1 and the frame of second roller conveyer 2 is the same, ensure the steady transmission of calcium silicate board.
Specifically, there is the clearance between the driving pulley 8 of roller conveyer, and the bold waste material that calcium silicate board produced is polished to edging chamfer device 3 can fall into collection hopper 4 through the clearance between a plurality of driving pulley 8, and the dust that calcium silicate board produced is polished to edging chamfer device 3 is then siphoned away by the dust absorption mouth 501 of first roller conveyer 1 and second roller conveyer 2 top to the realization is polished the waste material that produces and is fully retrieved calcium silicate board.
Specifically, the aggregate funnel 4 is supported by a support frame, a pair of crushing rollers in the aggregate funnel 4 rotate oppositely under the drive of two motors to crush large waste materials falling into the aggregate funnel 4, and the dust collection pump 502 sends collected dust into the aggregate funnel 4 through a pipeline;
the screw conveyor 6 conveys the waste collected by the aggregate hopper 4 into the transport vehicle 7, and the transport vehicle 7 conveys the waste into a waste bin to be weighed and then prepare for being reused as a raw material for producing the calcium silicate board.
Specifically, the second roller conveyor 2 further comprises a reversing roller 9, the reversing roller 9 is arranged at one end, close to the first roller conveyor 1, of the second roller conveyor 2, and the transmission direction of the reversing roller 9 is parallel to that of the first roller conveyor 1;
the reversing roller 9 is arranged in a gap between the adjacent transmission rollers 8 of the second roller conveyor 2, the diameter of the reversing roller 9 is larger than that of the transmission rollers 8 of the second roller conveyor 2, the top of the reversing roller 9 is as high as that of the transmission rollers 8, so that the reversing roller 9 and the transmission rollers 8 can both contact the calcium silicate plate, and meanwhile, the height of a driving shaft connected with the reversing roller 9 is lower than that of the transmission rollers 8, so that the driving shaft and the transmission rollers 8 are staggered;
the frame below of second roller conveyer 2 is equipped with two parallel dead levers, and the both ends of drive shaft are connected with the dead lever rotation of both sides respectively, are fixed with the motor on the dead lever, and the motor is used for the drive shaft to rotate.
Specifically, the edge grinding and chamfering device 3 comprises a horizontal edge grinding device 301, an inclined chamfering device 302 and a fixing frame, wherein the horizontal edge grinding device 301 and the inclined chamfering device 302 respectively comprise a motor and a grinding disc 303 driven by the motor, the horizontal edge grinding device 301 and the inclined chamfering device 302 are both fixed on the fixing frame, and the edge grinding and chamfering device 3 is fixed on two sides of the first roller conveyor 1 or the second roller conveyor 2 through the fixing frame;
the edging sequence of the calcium silicate board is that firstly, the side edge is polished smoothly, and secondly, the side plate is chamfered, so that a horizontal edging device 301 and an inclined chamfering device 302 are sequentially arranged along the movement direction of the calcium silicate board;
the horizontal edge grinding device 301 and the inclined edge grinding device 302 of the two edge grinding and chamfering devices 3 which are oppositely arranged at the two sides of the first roller conveyor 1 or the second roller conveyor 2 are also oppositely arranged;
the distance between two edging and chamfering devices 3 which are oppositely arranged at two sides of the first roller conveyor 1 or the second roller conveyor 2 is determined by the design size of the calcium silicate plate.
Specifically, each edge grinding chamfering device 3 is at least provided with two inclined chamfering devices 302, and each inclined chamfering device 302 is responsible for chamfering the upper part or the lower part of the side edge of the calcium silicate board.
Specifically, an arch frame 5 is fixed on each of the first roller conveyor 1 and the second roller conveyor 2, a plurality of dust suction ports 501 are fixed at the top of the arch frame 5 at equal intervals along the conveying direction of the first roller conveyor 1 or the second roller conveyor 2, the dust suction ports 501 are connected in series through a same pipeline, the pipeline is fixed on the arch frame 5, a dust suction pump 502 is also fixed at one end of the arch frame 5, and the tail end of the pipeline is communicated with the dust suction pump 502.
Specifically, the dust collection pump 502 comprises a dust collection box and a vacuum pump 5024 with a filter screen, the dust collection box comprises an air inlet 5021, an air outlet 5022 and a dust collection port 5023, the air inlet 5021 is arranged on the side face of the dust collection box and communicated with a pipeline, the air outlet 5022 is arranged on the top face of the dust collection box, the dust collection port 5023 is arranged on the bottom face of the dust collection box, the dust collection port 5023 is connected with an aggregate funnel 4 through a pipeline, and since dust does not need to be broken, an interface between the pipeline and the aggregate funnel 4 is arranged below a breaking roller, the vacuum pump 5024 is communicated with the air outlet 5022, a dust impact plate 5025 is arranged in the dust collection box along the moving direction of air flow, the dust impact plate 5025 is arranged right opposite to the air inlet 5021, and the projection of the dust impact plate 5025 in the horizontal direction completely covers the air inlet 5021;
the dust impact plate 5025 is arranged opposite to the air inlet 5021, so that the direction of the air flow is changed rapidly, the dust is separated from the air by utilizing the difference of inertia force between the dust and the air in motion, the dust is separated from the air flow due to the fact that the inertia force is much larger than that of the air, the dust particles are separated from the air flow, the purified air is discharged from the air outlet 5022 after the direction is changed rapidly, and the separated dust particles fall into the dust collecting opening 5023 under the influence of gravity.
Specifically, the screw conveyor 6 comprises a first screw conveyor 6 and a second screw conveyor 6, the first screw conveyor 6 and the second screw conveyor 6 are respectively provided with two feed inlets and a discharge outlet, the two material collecting hoppers 4 below the first roller conveyor 1 are respectively connected with the two feed inlets of the first screw conveyor 6, and the two material collecting hoppers 4 below the second roller conveyor 2 are respectively connected with the two feed inlets of the second screw conveyor 6.
Specifically, the first spiral conveyor 6 and the second spiral conveyor 6 are both obliquely arranged to lift the discharge port, the discharge port is arranged towards the transport vehicle 7 and is positioned above a hopper of the transport vehicle 7, and the discharge port is provided with a dust cover;
since the first screw conveyor 6 and the second screw conveyor 6 are both obliquely arranged, of the two collecting hoppers 4 connected to the same screw conveyor 6, the collecting hopper 4 farther away from the transport vehicle 7 will have a lower bottom than the other collecting hopper 4, facilitating the oblique arrangement of the screw conveyor 6.
Specifically, the working process of the edging device for producing the calcium silicate plate is as follows:
(1) The cut calcium silicate board is sent to a first roller conveyor 1, a transmission roller 8 of the first roller conveyor 1 moves the calcium silicate board to pass through an edging and chamfering device 3 of the first roller conveyor 1, grinding and chamfering processes of two side edges of the calcium silicate board are completed, at the moment, a dust suction pump 502 sucks away dust generated in edging, an aggregate hopper 4 collects and crushes waste materials generated in edging, the waste materials in the aggregate hopper 4 fall into a first spiral conveyor 6, and the first spiral conveyor 6 sends the waste materials to a transport vehicle 7;
(2) Continuously moving the calcium silicate plate to the junction of the first roller conveyor 1 and the second roller conveyor 2 by the transmission roller 8 of the first roller conveyor 1, starting the reversing roller 9 of the second roller conveyor 2 at the moment, and continuously moving the calcium silicate plate by the reversing roller 9 to enable two non-polished side edges of the calcium silicate plate to be aligned to the edging and chamfering device 3 of the second roller conveyor 2;
(3) After the calcium silicate board moves in place, the reversing roller 9 is stopped, the driving roller 8 of the second roller conveyor 2 replaces the reversing roller 9 to move the calcium silicate board, the calcium silicate board passes through the edging chamfering device 3 of the second roller conveyor 2, the grinding and chamfering processes of two side edges left on the calcium silicate board are completed, at the moment, dust generated in edging is sucked away by the dust suction pump 502, the aggregate hopper 4 collects and crushes waste materials generated in edging, the waste materials in the aggregate hopper 4 fall into the second screw conveyor 6, and the second screw conveyor 6 sends the waste materials into the transport vehicle 7.
(4) After the hopper of the transport vehicle 7 is filled with the waste materials, the first screw conveyor and the second screw conveyor are closed, the transport vehicle 7 transports the waste materials to the waste material warehouse, the first screw conveyor and the second screw conveyor are opened again when the next empty transport vehicle 7 returns to the position below the first screw conveyor and the second screw conveyor, and the collecting hopper 4 temporarily stores partial waste materials during vehicle changing.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a production edging device for calcium silicate board, includes first roller conveyer and second roller conveyer, its characterized in that: the first roller conveyor and the second roller conveyor are placed in an L shape; both sides of the first roller conveyor and the second roller conveyor are provided with edge grinding chamfering devices; a plurality of dust suction ports are arranged above the first roller conveyor and the second roller conveyor and are connected with a dust suction pump in series through pipelines; every edging chamfer device below all is equipped with the funnel that gathers materials, be equipped with a pair of crushing roller in the funnel that gathers materials, the dust absorption pump passes through the pipeline intercommunication the funnel that gathers materials, the funnel that gathers materials passes through screw conveyer and carries the waste material to the transport vechicle.
2. The edging device for producing calcium silicate boards according to claim 1, characterized in that: the second roller conveyor further comprises a reversing roller, the reversing roller is arranged at one end, close to the first roller conveyor, of the second roller conveyor, and the transmission direction of the reversing roller is parallel to that of the first roller conveyor.
3. The edging device for producing calcium silicate boards according to claim 1, characterized in that: edging chamfer device includes horizontal edging device, slope chamfer device, horizontal edging device with slope chamfer device all include the motor and by motor drive's the dish of polishing.
4. The edging device for producing calcium silicate boards according to claim 1, characterized in that: and the first roller conveyor and the second roller conveyor are both fixed with an arch frame, a plurality of dust suction ports are fixed at the top of the arch frame at equal intervals along the conveying direction of the first roller conveyor or the second roller conveyor, and the dust suction pump is fixed at one end of the arch frame.
5. The edging device for producing calcium silicate boards according to claim 1, characterized in that: the dust absorption pump includes the suction box and has the vacuum pump of filter screen, the suction box includes air inlet, gas outlet and dust collection mouth, the air inlet sets up the suction box side, the gas outlet sets up the suction box top surface, the dust collection mouth sets up the suction box bottom surface, the vacuum pump with the gas outlet intercommunication, be equipped with the dust striking plate along the direction of motion of air current in the suction box.
6. The edging device for producing calcium silicate boards according to claim 1, characterized in that: the spiral conveyor comprises a first spiral conveyor and a second spiral conveyor, the first spiral conveyor and the second spiral conveyor are respectively provided with two feed inlets and a discharge outlet, the two material collecting hoppers below the first roller conveyor are respectively connected with the two feed inlets of the first spiral conveyor, and the two material collecting hoppers below the second roller conveyor are respectively connected with the two feed inlets of the second spiral conveyor.
7. The edging device for producing calcium silicate boards according to claim 6, characterized in that: first screw conveyer with the equal slope of second screw conveyer sets up in order to raise the discharge gate, the discharge gate orientation the transport vechicle sets up, the discharge gate is provided with the dust cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222302090.2U CN218397396U (en) | 2022-08-31 | 2022-08-31 | Production calcium silicate edging device for board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222302090.2U CN218397396U (en) | 2022-08-31 | 2022-08-31 | Production calcium silicate edging device for board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218397396U true CN218397396U (en) | 2023-01-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222302090.2U Active CN218397396U (en) | 2022-08-31 | 2022-08-31 | Production calcium silicate edging device for board |
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| CN (1) | CN218397396U (en) |
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2022
- 2022-08-31 CN CN202222302090.2U patent/CN218397396U/en active Active
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