CN111993564A - Hollow floor production equipment - Google Patents

Hollow floor production equipment Download PDF

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Publication number
CN111993564A
CN111993564A CN202010956211.8A CN202010956211A CN111993564A CN 111993564 A CN111993564 A CN 111993564A CN 202010956211 A CN202010956211 A CN 202010956211A CN 111993564 A CN111993564 A CN 111993564A
Authority
CN
China
Prior art keywords
stirring
hollow floor
frame
feeding
supporting member
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010956211.8A
Other languages
Chinese (zh)
Inventor
王书杰
汤小川
王维
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chongqing Qingwei Machinery Factory
Original Assignee
Chongqing Qingwei Machinery Factory
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chongqing Qingwei Machinery Factory filed Critical Chongqing Qingwei Machinery Factory
Priority to CN202010956211.8A priority Critical patent/CN111993564A/en
Publication of CN111993564A publication Critical patent/CN111993564A/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B15/00—General arrangement or layout of plant ; Industrial outlines or plant installations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B28B1/08—Producing shaped prefabricated articles from the material by vibrating or jolting
    • B28B1/087—Producing shaped prefabricated articles from the material by vibrating or jolting by means acting on the mould ; Fixation thereof to the mould
    • B28B1/0873—Producing shaped prefabricated articles from the material by vibrating or jolting by means acting on the mould ; Fixation thereof to the mould the mould being placed on vibrating or jolting supports, e.g. moulding tables
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B13/00—Feeding the unshaped material to moulds or apparatus for producing shaped articles; Discharging shaped articles from such moulds or apparatus
    • B28B13/02—Feeding the unshaped material to moulds or apparatus for producing shaped articles
    • B28B13/0215—Feeding the moulding material in measured quantities from a container or silo
    • B28B13/023—Feeding the moulding material in measured quantities from a container or silo by using a feed box transferring the moulding material from a hopper to the moulding cavities
    • B28B13/0235—Feeding the moulding material in measured quantities from a container or silo by using a feed box transferring the moulding material from a hopper to the moulding cavities the feed box being provided with agitating means, e.g. stirring vanes to avoid premature setting of the moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B17/00—Details of, or accessories for, apparatus for shaping the material; Auxiliary measures taken in connection with such shaping
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
    • B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
    • B28C5/0806—Details; Accessories
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
    • B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
    • B28C5/0806—Details; Accessories
    • B28C5/0831—Drives or drive systems, e.g. toothed racks, winches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
    • B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
    • B28C5/10—Mixing in containers not actuated to effect the mixing
    • B28C5/12—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
    • B28C7/04—Supplying or proportioning the ingredients
    • B28C7/0422—Weighing predetermined amounts of ingredients, e.g. for consecutive delivery
    • B28C7/044—Weighing mechanisms specially adapted therefor; Weighing containers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
    • B28C7/04—Supplying or proportioning the ingredients
    • B28C7/12—Supplying or proportioning liquid ingredients
    • B28C7/126—Supply means, e.g. nozzles
    • B28C7/128—Nozzles; Valves; Valve-actuating means

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Structural Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Dispersion Chemistry (AREA)
  • Accessories For Mixers (AREA)

Abstract

The invention discloses a production device of a hollow floor, which comprises a frame body, wherein the upper end of the frame body is provided with a material supply part structure, and the material supply part structure is provided with a material input port and a material output port; a material metering device is arranged on the frame body corresponding to the material output port, the upper end of the material metering device is a material input end and is connected with the material output port, a stirring device is arranged below the material metering device, the feed end of the stirring device is connected with the discharge end of the material metering device, and a water inlet is also formed in the stirring device; a vibrating table is arranged on one side of the frame body and corresponds to the discharge end of the stirring device, the upper end surface of the vibrating table forms a horizontal mold containing station and is used for placing a hollow floor mold, and the discharge end of the stirring device is connected with the feed end of the hollow floor mold; and the vibration table has a vibration mechanism. The invention has the advantages of reducing the production labor intensity, having stable quality and saving production raw materials.

Description

Hollow floor production equipment
Technical Field
The invention belongs to the technical field of gypsum building material production equipment, and particularly relates to hollow floor production equipment.
Background
The hollow floor system technology is a new technology which is developed rapidly in the field of buildings in China and is a new trend for development of the building industry. In 2012, industry standards JQJ/T268-2012 'cast-in-place concrete hollow floor technical regulation', JG/352-2012 'cast-in-place concrete hollow structure hole forming core mold', JC/T2472-2018 'cast-in-place concrete hollow structure gypsum mold box' are respectively established in China, and the technology is widely popularized and applied in the building industry at present.
A gypsum mold box JC/T2472-2018 (hereinafter referred to as a gypsum mold box) for a cast-in-place concrete hollow structure is formed by adding water in a certain proportion into raw materials GB/T9776-2008 of building gypsum, stirring the raw materials, and then pouring the raw materials into a mold to be solidified (in the prior art, a proper amount of fibers are generally added for improving the strength).
The gypsum mould box is a novel industrial byproduct building material vigorously advocated by China, and is an effective way for solving environmental pollution and changing waste into valuable. At present, the domestic production of gypsum mould boxes basically adopts a simple mode of manual mould adding for production. The main defects of the method are that the labor intensity is high, the production operation environment pollution is serious (gypsum dust and waste residue), the method not only causes harm to the body of workers, but also causes secondary pollution to the environment, and the method is also a main problem which restricts the development of the gypsum mold box building material industry at present.
Disclosure of Invention
Aiming at the defects of the prior art, the technical problems to be solved by the invention are as follows: how to provide a hollow superstructure production facility that can reduce production intensity of labour, the steady quality can practice thrift the production raw and other materials.
In order to solve the technical problems, the invention adopts the following technical scheme:
the hollow floor production equipment comprises a frame body, wherein a material supply part structure is arranged at the upper end of the frame body and is provided with a material input port and a material output port; the material metering device is characterized in that a material metering device is arranged on the frame body corresponding to the material output port, the upper end of the material metering device is a material input end and is connected with the material output port, a stirring device is arranged below the material metering device, the feed end of the stirring device is connected with the discharge end of the material metering device, and a water inlet is also formed in the stirring device; a vibrating table is arranged on one side of the frame body and corresponds to the discharge end of the stirring device, the upper end surface of the vibrating table forms a horizontal mold containing station and is used for placing a hollow floor mold, and the discharge end of the stirring device is connected with the feed end of the hollow floor mold; and the vibrating table is provided with a vibrating mechanism, and the working end of the vibrating mechanism can be in contact with the hollow floor mould on the mould containing station and drive the material inside the hollow floor mould to vibrate.
Therefore, when the equipment works, the material supply part structure supplies building gypsum, after the weighing and the metering of the material metering device, the material metering device weighs the building gypsum with specific weight and sends the building gypsum into the stirring device, and if the building gypsum with specific weight is provided with water with specific weight, the building gypsum is uniformly stirred and then sent into the hollow floor mould on the mould containing station, the vibration table is provided with a vibration mechanism which is in contact with the hollow floor mould on the mould containing station and drives the material in the hollow floor mould to vibrate, and the production of the hollow floor in the hollow floor mould is completed. The equipment is adopted to produce the hollow floor, so that the labor input is reduced, and the production labor intensity can be reduced; the hollow floor is produced mechanically, so that the quality of the hollow floor is more stable; the building gypsum is weighed and added, so that production raw materials can be saved.
As optimization, the frame body comprises a support frame at the lower end and a transfer frame arranged above the support frame, and the support frame and the transfer frame are arranged independently; the material supply part structure is arranged on the transfer frame; the material metering device and the stirring device are arranged on the support frame; and the material supply part structure comprises a material output pipe which is vertically arranged downwards, the lower end of the material output pipe forms the material output port, the material metering device is provided with a material input pipe which is vertically upwards, and the material output pipe can be vertically slidably sleeved outside the material input pipe.
Like this, the support frame is mutually independent setting with transporting the frame, transports the material supply part structure on frame and transporting the frame as a whole, can adopt transport apparatus such as fork truck to shift transporting the frame alone. And through the material output tube that sets up, when can make things convenient for support frame and transport frame equipment more, the linking of material transport between the two.
As optimization, the support frame and the transfer frame respectively comprise four lower support columns and four upper support columns which are vertically and are distributed in a rectangular manner in the horizontal direction, positioning holes are formed in the upper end faces of the lower support columns, positioning pin shafts are arranged at the lower ends of the upper support columns, the positioning pin shafts can be correspondingly inserted into the positioning holes one by one, and the lower end faces of the upper support columns are enabled to be respectively attached to and supported on the upper end faces of the lower support columns.
Like this, during support frame and the equipment of transporting the frame, both can adjust well for the back together of equipment, the precision is higher, and linking up from top to bottom is more accurate.
Preferably, the material supply part structure comprises a hopper arranged at the upper end of the transfer frame, and the upper end of the hopper is arranged in an open manner and forms the material input port; the material supply part structure also comprises a horizontal feeding mechanism arranged below the hopper; the feeding end of the feeding mechanism is connected with the discharging end of the hopper; and the discharge end of the feeding mechanism forms the material output port.
Like this, through setting up hopper and feeding mechanism, can conveniently deposit the material to the feeding mechanism who sets up can send the material to material metering device better.
As optimization, the feeding mechanism comprises a feeding pipe horizontally arranged at the lower end of the transfer frame, and the upper side surface of one end of the feeding pipe is provided with a feeding hole and is connected with the discharging end of the hopper; the lower side surface of the other end of the feeding pipe is provided with a discharge hole and connected with the material output pipe, a feeding shaft is arranged in the feeding pipe along the axial direction of the feeding pipe, one end of the feeding shaft is connected with the rotation driving device, and a feeding blade in a spiral structure is arranged on the feeding shaft.
Like this, feeding mechanism's structure is simpler, and the design is more reasonable. Further, the driving device is a driving motor; the feeding hole is connected with a feeding flange, the discharging end of the hopper is connected with a discharging flange, and the feeding flange is connected with the discharging flange. The structure is simpler like this, and the design is more reasonable.
Preferably, the frame body is further provided with a water tank, the water tank is connected with a water supply pipe, and the far end of the water supply pipe is connected with the water inlet.
Like this, through set up the water tank water storage on the support body, can make things convenient for more and supply water, whole structural design is simple reasonable more. Furthermore, a metering valve and a water pump are arranged on the water supply pipe. Thus, water supply is more convenient, and the water supply amount is more conveniently controlled. An electric cabinet is also arranged on the frame body.
Preferably, the stirring device comprises a stirring barrel which is arranged obliquely downwards, and a feeding hole is formed in the upper side of the circumferential surface of the upper end of the stirring barrel and is used for being connected with the discharging end of the material metering device; the water inlet is formed in one side of the circumferential surface of the upper end of the stirring barrel; the lower end of the stirring barrel is open to form a stirring material output port, a sealing cover is hinged to the stirring material output port at the lower end of the stirring barrel, and a sealing cover vertical rotation control mechanism is arranged between the sealing cover and the stirring barrel to enable the sealing cover to vertically rotate and be arranged on the stirring material output port in a sealing mode; be equipped with the stirring structure on sealed lid, the stirring structure includes and installs at the inboard agitator disk of sealed lid through the (mixing) shaft, sealed outside of covering be equipped with actuating mechanism and with (mixing) shaft transmission connects, is equipped with a plurality of puddlers that outwards set up on agitator disk outside surface, is equipped with a plurality of stirring teeth on agitator disk circumferential surface.
Like this, foretell agitating unit is at the during operation, and sealed lid is encapsulated situation, and building gypsum is equipped with the feed inlet from agitator upper end circumference surface upside and gets into to from the water inlet intake, building gypsum and water get into the agitator after, concentrate on the inside lower extreme position of agitator. Simultaneously, actuating mechanism drives the agitator disk and rotates, and the stirring tooth of agitator disk circumference and the puddler of agitator disk outside surface stir the mixture that building gypsum and water formed, and with the mixture stirring back of building gypsum and water, the sealed rotation control mechanism of sealed lid control rotates for the mixture of building gypsum and water of stirring is from the automatic roll-off of agitator lower extreme to the hollow superstructure mould in. Foretell agitating unit is the slope with the agitator and sets up downwards, and when stirring tooth and puddler stirred the material on the agitator disk, be inhomogeneous stirring, can avoid producing the vortex, can be better with the mixture stirring of building gypsum and water, improve the stirring quality for the hollow superstructure that obtains has better quality. The material-pouring type stirring barrel is matched with the double-row stirring disc with teeth, so that the stirring is more uniform and quicker, and the vortex phenomenon is not generated.
As optimizing, the puddler includes first puddler and second puddler, and first puddler and second puddler respectively are a plurality of that are evenly distributed along the agitator disk circumferencial direction, and just first puddler is located the second puddler outside, and the length of first puddler is greater than the length of second puddler.
Like this, through setting up first puddler and second puddler, and make the length of first puddler be greater than the length of second puddler, can be better with the mixture stirring of building gypsum and water, improve the stirring quality.
Preferably, a plurality of connecting rods are uniformly arranged on the circumferential surface of the stirring disc, and the connecting rods form the stirring teeth.
Like this, can conveniently obtain the stirring tooth more, and the structure is simpler, and the design is more reasonable.
As optimization, the upper end of the stirring barrel is arranged in an open mode, a circular material pushing plate is arranged inside the upper end of the stirring barrel, a material pushing plate movement control mechanism is arranged between the frame body and the material pushing plate, and the material pushing plate can move downwards in the stirring barrel along the axial direction of the material pushing plate.
Like this, after the mixture stirring of building gypsum and water, under the action of gravity, roll-off that the mixture of building gypsum and water can be automatic is outside to the agitator, later, and the circular shape scraping wings is under scraping wings movement control mechanism's drive for the scraping wings can be along its axial downstream in the agitator, can scrape down and send out the misce bene that adheres to on the internal perisporium of agitator outside to the agitator. And can also wash by water in the agitator, stir again and wash, discharge to the agitator outside with water, can use manpower sparingly, do not need manual to clear up the agitator, and the clearance effect is better. The piston type material pushing plate structure has the advantages of fast pulp discharging and no residue on the barrel wall.
Preferably, the outer side of the material pushing plate is provided with a backing plate in a sticking mode, the material pushing plate movement control mechanism comprises a material pushing power cylinder, and the piston rod end of the material pushing power cylinder is connected with the backing plate.
Therefore, by arranging the base plate, the base plate is connected with the material pushing plate and the material pushing power cylinder, so that the material pushing plate is stressed more uniformly.
Preferably, the material pushing plate is made of a nylon material.
Like this, the selection of material is more reasonable, can play the guard action to the agitator.
As optimization, the circumferential upper side of the sealing cover is hinged with the circumferential upper side of the stirring barrel; the vertical rotation control mechanism of sealed lid is including setting up the sealed power cylinder at agitator circumference upside, and sealed power cylinder body end hinge connects on the agitator, is connected with the actuating lever that the slope set up downwards on the sealed lid, and the actuating lever outer end is connected with the connecting block, and makes the articulated connection of sealed power cylinder piston rod end on the connecting block.
Therefore, the vertical rotation control mechanism of the sealing cover is simpler and more reasonable in design.
Preferably, an observation hole is further formed in the surface of one side of the upper end of the stirring barrel.
Therefore, on one hand, the mixing degree of the building gypsum and the water in the stirring barrel can be conveniently observed; on the other hand, the fiber can be conveniently added from the observation hole to improve the strength of the product.
As optimization, the vibration table comprises a bracket with a rectangular structure, and the upper end surface of the bracket forms the mold containing station and is used for placing the hollow floor mold; a rectangular frame is horizontally arranged above the inner part of the bracket and on the upper end surface of the spacing bracket, a vibrator is fixedly arranged below the rectangular frame, a horizontal supporting member is also arranged below the rectangular frame, and the supporting member is connected with the rectangular frame through a vertical spring mechanism; and a vertical driving control mechanism is arranged between the supporting member and the support, and can control the supporting member to vertically move upwards, and push the rectangular frame to move upwards through a spring mechanism, so that the rectangular frame is supported on the lower end surface of the hollow floor mold on the mold containing station in an abutting mode.
When the vibration table works, the hollow floor mould is placed on a mould containing station formed on the upper end surface of the support; after the hollow floor mould on the mould holds the station is put into the material, vertical drive control mechanism can control the vertical upward movement of supporting member to promote the rectangle frame upward movement through spring mechanism, and make the rectangle frame butt support hold on the lower terminal surface of the hollow floor mould on the mould holds the station, and will vibrate the transmission to hollow floor mould. In this working process, the pressure that spring mechanism received is constantly changed, and the volume that the spring mechanism compressed is big more, and the vibration that hollow superstructure mould received is just also stronger, and the vibration frequency can change according to the vibration needs, and frequency conversion vibration technology not only can replace the surface strickle process of gypsum diaphragm capsule, and material saving can not produce unnecessary lime-ash and make the intensity of product improve greatly after the grout.
As optimization, a mounting plate is horizontally arranged on the rectangular frame, and the vibrating machine is mounted on the lower surface of the mounting plate.
Therefore, the vibrating machine is more convenient to install and set, simple in structure and more reasonable in design.
As optimization, four horizontal installation blocks are arranged on the rectangular frame in a rectangular mode, guide rods which are vertically and downwards arranged are arranged on the installation blocks, guide blocks are arranged on the supports and correspond to the guide rods respectively, and guide holes are formed in the guide blocks so that the guide rods can be vertically inserted into the guide holes.
Like this, at the course of the work for guide structure has between rectangle frame and the support, and the design is more reasonable, makes both difficult emergence dislocation.
And as optimization, vertical upward positioning pins are respectively arranged at four corner positions of the upper surface of the rectangular frame, and the positioning pins can be correspondingly inserted into positioning holes formed in the lower end surface of the hollow floor mould.
Like this, hollow superstructure mould can place better in the rectangle frame top, in the vibration process, fixes a position hollow superstructure mould better, avoids its roll-off to the rectangle frame outside.
Preferably, the number of the spring mechanisms is four, the four spring mechanisms are distributed in a rectangular shape in the horizontal direction, and the upper ends of the spring mechanisms are connected to four corner positions below the rectangular frame in a one-to-one correspondence mode.
Thus, the layout of the spring mechanism is more reasonable.
As optimization, the spring mechanism comprises a vertical telescopic rod, two ends of the telescopic rod are respectively connected with the rectangular frame and the supporting member, a spiral spring is sleeved outside the telescopic rod, and two ends of the spiral spring are respectively supported on the rectangular frame and the supporting member in an abutting mode.
Thus, the design of the spring mechanism is simpler and more reasonable.
Preferably, the vertical driving control mechanism comprises a driving member which is integrally in a long strip-shaped structure, one end of the driving member is hinged to the support in a vertically rotatable mode and extends to the middle position below the supporting member; the other end of the driving member extends to the outside of the bracket and forms an operating end; and after the driving operation end moves downwards, the driving end can be abutted and supported below the supporting member and drive the supporting member to move vertically upwards.
Therefore, the whole structure is more simple and more reliable, different vibration force and vibration frequency can be generated by the pedal force, and the force application amount and the vibration time can be determined by an operator according to the surface flatness of the slurry injected into the mold.
Preferably, a pedal is arranged at the driving end.
Therefore, the design is more reasonable, and the use is more convenient.
As optimization, the middle part of the supporting member is provided with a supporting column which is vertically arranged downwards, and the lower end of the supporting column is of a ball head structure and is used for being abutted and supported by the driving end.
Like this, the structure is simpler, can drive the vertical upward movement of support framework better.
Drawings
Fig. 1 is a schematic structural diagram of a hollow floor production device in the specific embodiment of the present invention.
Fig. 2 is a top view of fig. 1.
Fig. 3 is a partially enlarged view of a portion a of fig. 1.
Fig. 4 is a schematic view of fig. 1 without showing the shelf.
Fig. 5 is a schematic structural view of the stirring device in fig. 1.
Fig. 6 is a schematic structural view of the vibration table in fig. 1.
Fig. 7 is a front view of fig. 6.
Fig. 8 is a top view of fig. 6.
Detailed Description
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
referring to fig. 1 to 8: the hollow floor production equipment comprises a frame body 1, wherein a material supply part structure 2 is arranged at the upper end of the frame body, and the material supply part structure is provided with a material input port 3 and a material output port 4; a material metering device 5 is arranged on the frame body corresponding to the material output port, the upper end of the material metering device is a material input end and is connected with the material output port, a stirring device 6 is arranged below the material metering device, the feed end of the stirring device is connected with the discharge end of the material metering device, and a water inlet is also arranged on the stirring device; a vibrating table 7 is arranged on one side of the frame body and corresponds to the discharge end of the stirring device, the upper end surface of the vibrating table forms a horizontal mold containing station and is used for placing a hollow floor mold 8, and the discharge end of the stirring device is connected with the feed end of the hollow floor mold; and the vibrating table is provided with a vibrating mechanism, and the working end of the vibrating mechanism can be in contact with the hollow floor mould on the mould containing station and drive the material inside the hollow floor mould to vibrate.
Therefore, when the equipment works, the material supply part structure supplies building gypsum, after the weighing and the metering of the material metering device, the material metering device weighs the building gypsum with specific weight and sends the building gypsum into the stirring device, and if the building gypsum with specific weight is provided with water with specific weight, the building gypsum is uniformly stirred and then sent into the hollow floor mould on the mould containing station, the vibration table is provided with a vibration mechanism which is in contact with the hollow floor mould on the mould containing station and drives the material in the hollow floor mould to vibrate, and the production of the hollow floor in the hollow floor mould is completed. The equipment is adopted to produce the hollow floor, so that the labor input is reduced, and the production labor intensity can be reduced; the hollow floor is produced mechanically, so that the quality of the hollow floor is more stable; the building gypsum is weighed and added, so that production raw materials can be saved.
Specifically, material metering device includes the metering tank, and the even level of metering tank upper end outer wall outwards is equipped with the connecting block, corresponds on the support body the connecting block is equipped with the supporting shoe, is equipped with the gravity inductor on the supporting shoe, and the butt that the connecting block lower surface corresponds is supported on the gravity inductor. The structure is simpler and the design is more reasonable. And a one-way valve is arranged inside the metering tank to control the output of the materials.
Specifically, one side of the frame body 1 is provided with a containing frame 9, and the containing frame is provided with a plurality of containing stations and can contain hollow floor molds; the containing stations are sequentially arranged adjacently and are integrally distributed in a rectangular shape; the vibration table is arranged at a position corresponding to one of the containing stations. Therefore, the circulation of the hollow floor mold during production is more convenient.
In this embodiment, the frame body 1 includes a support frame 10 at a lower end and a transfer frame 11 disposed above the support frame, and the support frame and the transfer frame are disposed independently; the material supply part structure is arranged on the transfer frame; the material metering device and the stirring device are arranged on the support frame; and the material supply part structure comprises a material output pipe 12 which is vertically arranged downwards, the lower end of the material output pipe forms the material output port, the material metering device is provided with a material input pipe 13 which is vertically upwards, and the material output pipe is sleeved outside the material input pipe in a manner of vertically sliding.
Like this, the support frame is mutually independent setting with transporting the frame, transports the material supply part structure on frame and transporting the frame as a whole, can adopt transport apparatus such as fork truck to shift transporting the frame alone. And through the material output tube that sets up, when can make things convenient for support frame and transport frame equipment more, the linking of material transport between the two.
In this embodiment, the support frame and the transfer frame respectively include four lower support columns 14 and four upper support columns 15 that are vertical and are rectangular distribution in the horizontal direction, are equipped with the locating hole on the lower support column up end, are equipped with positioning pin 16 at the upper support column lower extreme, just the grafting that positioning pin can the one-to-one is in the locating hole to make upper support column lower extreme terminal surface paste respectively and support on the lower support column up end.
Like this, during support frame and the equipment of transporting the frame, both can adjust well for the back together of equipment, the precision is higher, and linking up from top to bottom is more accurate.
In the present embodiment, the material supply part structure comprises a hopper 17 arranged at the upper end of the transfer frame, and the upper end of the hopper is open and forms the material input port; the material feeding part structure also comprises a horizontal feeding mechanism 18 arranged below the hopper; the feeding end of the feeding mechanism is connected with the discharging end of the hopper; and the discharge end of the feeding mechanism forms the material output port.
Like this, through setting up hopper and feeding mechanism, can conveniently deposit the material to the feeding mechanism who sets up can send the material to material metering device better.
In the specific embodiment, the feeding mechanism comprises a feeding pipe 19 horizontally arranged at the lower end of the transfer frame, and the upper side surface of one end of the feeding pipe is provided with a feeding hole and is connected with the discharging end of the hopper; the lower side surface of the other end of the feeding pipe is provided with a discharge hole and is connected with the material output pipe, a feeding shaft 20 is arranged in the feeding pipe along the axial direction of the feeding pipe, one end of the feeding shaft is connected with a rotation driving device 21, and a feeding blade in a spiral structure is arranged on the feeding shaft.
Like this, feeding mechanism's structure is simpler, and the design is more reasonable. Further, the driving device is a driving motor; the feeding hole is connected with a feeding flange, the discharging end of the hopper is connected with a discharging flange, and the feeding flange is connected with the discharging flange. The structure is simpler like this, and the design is more reasonable.
In this embodiment, a water tank 22 is further disposed on the frame body, and a water supply pipe is connected to the water tank, and a distal end of the water supply pipe is connected to the water inlet.
Like this, through set up the water tank water storage on the support body, can make things convenient for more and supply water, whole structural design is simple reasonable more. Furthermore, a metering valve and a water pump are arranged on the water supply pipe. Thus, water supply is more convenient, and the water supply amount is more conveniently controlled. An electric cabinet is also arranged on the frame body.
In the specific embodiment, the stirring device comprises a stirring barrel 23 which is arranged obliquely downwards, and a feeding hole is formed in the upper side of the circumferential surface of the upper end of the stirring barrel and is used for being connected with the discharging end of the material metering device; the water inlet is formed in one side of the circumferential surface of the upper end of the stirring barrel; the lower end of the stirring barrel is open to form a stirring material output port, a sealing cover 24 is hinged to the stirring material output port at the lower end of the stirring barrel, and a sealing cover vertical rotation control mechanism is arranged between the sealing cover and the stirring barrel to enable the sealing cover to vertically rotate and be arranged on the stirring material output port in a sealing mode; be equipped with the stirring structure on sealed lid, the stirring structure includes and installs at the inboard agitator disk 25 of sealed lid through the (mixing) shaft, sealed outside of the covering be equipped with actuating mechanism and with (mixing) shaft transmission connects, is equipped with a plurality of outside puddlers 26 that set up on agitator disk outside surface, is equipped with a plurality of stirring teeth 27 on agitator disk circumferential surface.
Like this, foretell agitating unit is at the during operation, and sealed lid is encapsulated situation, and building gypsum is equipped with the feed inlet from agitator upper end circumference surface upside and gets into to from the water inlet intake, building gypsum and water get into the agitator after, concentrate on the inside lower extreme position of agitator. Simultaneously, actuating mechanism drives the agitator disk and rotates, and the stirring tooth of agitator disk circumference and the puddler of agitator disk outside surface stir the mixture that building gypsum and water formed, and with the mixture stirring back of building gypsum and water, the sealed rotation control mechanism of sealed lid control rotates for the mixture of building gypsum and water of stirring is from the automatic roll-off of agitator lower extreme to the hollow superstructure mould in. Foretell agitating unit is the slope with the agitator and sets up downwards, and when stirring tooth and puddler stirred the material on the agitator disk, be inhomogeneous stirring, can avoid producing the vortex, can be better with the mixture stirring of building gypsum and water, improve the stirring quality for the hollow superstructure that obtains has better quality. The material-pouring type stirring barrel is matched with the double-row stirring disc with teeth, so that the stirring is more uniform and quicker, and the vortex phenomenon is not generated.
In this specific embodiment, the puddler includes first puddler 28 and second puddler 29, and first puddler and second puddler are respectively for being a plurality of evenly distributed along the agitator disk circumferencial direction, and just first puddler is located the second puddler outside, and the length of first puddler is greater than the length of second puddler.
Like this, through setting up first puddler and second puddler, and make the length of first puddler be greater than the length of second puddler, can be better with the mixture stirring of building gypsum and water, improve the stirring quality.
In this embodiment, a plurality of connecting rods are uniformly arranged on the circumferential surface of the stirring disc, and the connecting rods form the stirring teeth.
Like this, can conveniently obtain the stirring tooth more, and the structure is simpler, and the design is more reasonable.
In the embodiment, the upper end of the stirring barrel is open, the circular material pushing plate 30 is arranged inside the upper end of the stirring barrel, and the material pushing plate movement control mechanism is arranged between the frame body and the material pushing plate and enables the material pushing plate to move downwards in the stirring barrel along the axial direction of the material pushing plate.
Like this, after the mixture stirring of building gypsum and water, under the action of gravity, roll-off that the mixture of building gypsum and water can be automatic is outside to the agitator, later, and the circular shape scraping wings is under scraping wings movement control mechanism's drive for the scraping wings can be along its axial downstream in the agitator, can scrape down and send out the misce bene that adheres to on the internal perisporium of agitator outside to the agitator. And can also wash by water in the agitator, stir again and wash, discharge to the agitator outside with water, can use manpower sparingly, do not need manual to clear up the agitator, and the clearance effect is better. The piston type material pushing plate structure has the advantages of fast pulp discharging and no residue on the barrel wall.
In this embodiment, the backing plate 31 is disposed on the outer side of the pushing plate, the pushing plate movement control mechanism includes a pushing power cylinder 32, and the piston rod end of the pushing power cylinder is connected to the backing plate.
Therefore, by arranging the base plate, the base plate is connected with the material pushing plate and the material pushing power cylinder, so that the material pushing plate is stressed more uniformly.
In this embodiment, the material pushing plate 30 is made of nylon material.
Like this, the selection of material is more reasonable, can play the guard action to the agitator.
In the specific embodiment, the circumferential upper side of the sealing cover is hinged with the circumferential upper side of the stirring barrel; the vertical rotation control mechanism of sealed lid is including setting up the sealed power cylinder 33 at agitator circumference upside, and sealed power cylinder body end hinge connects on the agitator, is connected with the actuating lever 34 that the slope set up downwards on the sealed lid, and the actuating lever outer end is connected with connecting block 35, and makes the articulated connection of sealed power cylinder piston rod end on the connecting block.
Therefore, the vertical rotation control mechanism of the sealing cover is simpler and more reasonable in design.
In this embodiment, a viewing hole 36 is further formed on the upper end side surface of the mixing tank.
Therefore, on one hand, the mixing degree of the building gypsum and the water in the stirring barrel can be conveniently observed; on the other hand, the fiber can be conveniently added from the observation hole to improve the strength of the product.
In this specific embodiment, the vibration table includes a support 37 having a rectangular structure, and the upper end surface of the support forms the mold holding station and is used for placing the hollow floor mold; a rectangular frame 38 is horizontally arranged above the inner part of the bracket and on the upper end surface of the interval bracket, a vibrator 39 is fixedly arranged below the rectangular frame, a horizontal supporting member 40 is also arranged below the rectangular frame, and the supporting member and the rectangular frame are connected through a vertical spring mechanism 41; and a vertical driving control mechanism is arranged between the supporting member and the support, and can control the supporting member to vertically move upwards, and push the rectangular frame to move upwards through a spring mechanism, so that the rectangular frame is supported on the lower end surface of the hollow floor mold on the mold containing station in an abutting mode.
When the vibration table works, the hollow floor mould is placed on a mould containing station formed on the upper end surface of the support; after the hollow floor mould on the mould holds the station is put into the material, vertical drive control mechanism can control the vertical upward movement of supporting member to promote the rectangle frame upward movement through spring mechanism, and make the rectangle frame butt support hold on the lower terminal surface of the hollow floor mould on the mould holds the station, and will vibrate the transmission to hollow floor mould. In this working process, the pressure that spring mechanism received is constantly changed, and the volume that the spring mechanism compressed is big more, and the vibration that hollow superstructure mould received is just also stronger, and the vibration frequency can change according to the vibration needs, and frequency conversion vibration technology not only can replace the surface strickle process of gypsum diaphragm capsule, and material saving can not produce unnecessary lime-ash and make the intensity of product improve greatly after the grout.
In this embodiment, a mounting plate 42 is horizontally provided on the rectangular frame, and the vibrator is mounted on the lower surface of the mounting plate.
Therefore, the vibrating machine is more convenient to install and set, simple in structure and more reasonable in design.
In the specific embodiment, four horizontal installation blocks 43 are arranged on the rectangular frame in a rectangular shape, guide rods 44 which are vertically and downwardly arranged are arranged on the installation blocks, guide blocks 45 are arranged on the supports corresponding to the guide rods respectively, and guide holes are formed in the guide blocks for the guide rods to be vertically inserted.
Like this, at the course of the work for guide structure has between rectangle frame and the support, and the design is more reasonable, makes both difficult emergence dislocation.
In the embodiment, the four corner positions on the upper surface of the rectangular frame are respectively provided with the vertical upward positioning pins 46, and the positioning pins can be correspondingly inserted into the positioning holes formed in the lower end surface of the hollow floor mould.
Like this, hollow superstructure mould can place better in the rectangle frame top, in the vibration process, fixes a position hollow superstructure mould better, avoids its roll-off to the rectangle frame outside. Furthermore, an annular cushion block made of rubber materials is sleeved on the locating pin.
In this specific embodiment, the number of the spring mechanisms is four, and the four spring mechanisms are distributed in a rectangular shape in the horizontal direction, and the upper ends of the spring mechanisms are connected to four corner positions below the rectangular frame in a one-to-one correspondence manner.
Thus, the layout of the spring mechanism is more reasonable.
In this embodiment, the spring mechanism includes a vertical telescopic rod 47, two ends of the telescopic rod are respectively connected with the rectangular frame and the supporting member, a coil spring 48 is sleeved outside the telescopic rod, and two ends of the coil spring are respectively supported on the rectangular frame and the supporting member in an abutting manner.
Thus, the design of the spring mechanism is simpler and more reasonable.
In this embodiment, the vertical driving control mechanism includes a driving member 49 having an overall elongated structure, one end of the driving member is hinged to the bracket in a vertically rotatable manner and extends to a middle position below the supporting member; the other end of the driving member extends to the outside of the bracket and forms an operating end; and after the driving operation end moves downwards, the driving end can be abutted and supported below the supporting member and drive the supporting member to move vertically upwards.
Therefore, the whole structure is more simple and more reliable, different vibration force and vibration frequency can be generated by the pedal force, and the force application amount and the vibration time can be determined by an operator according to the surface flatness of the slurry injected into the mold.
In this embodiment, a pedal 50 is provided at the driving end.
Therefore, the design is more reasonable, and the use is more convenient.
In this embodiment, a support pillar 51 is disposed in the middle of the support member and vertically downward, and the lower end of the support pillar is of a ball head structure and is used for being abutted against the drive end for supporting.
Like this, the structure is simpler, can drive the vertical upward movement of support framework better.
In summary, the above-mentioned device has the following characteristics in operation:
1. the conveying, weighing and stirring of the gypsum powder are carried out in a totally closed state, and no dust is generated in the production process.
2. The volume of the cavity of the mould is larger than the volume of the injected gypsum slurry, the surface of the gypsum slurry injected into the mould is self-leveling after vibration instead of a leveling process, and no residue is generated in the production process.
3. The process of filling the gypsum slurry into the mould is carried out to vibrate the gypsum slurry to achieve the purpose of tight filling, and reduce air holes and internal defects so as to improve the strength of the gypsum mould box.
The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.

Claims (10)

1. The hollow floor production equipment comprises a frame body, wherein a material supply part structure is arranged at the upper end of the frame body and is provided with a material input port and a material output port; the material metering device is characterized in that a material metering device is arranged on the frame body corresponding to the material output port, the upper end of the material metering device is a material input end and is connected with the material output port, a stirring device is arranged below the material metering device, the feed end of the stirring device is connected with the discharge end of the material metering device, and a water inlet is also formed in the stirring device; a vibrating table is arranged on one side of the frame body and corresponds to the discharge end of the stirring device, the upper end surface of the vibrating table forms a horizontal mold containing station and is used for placing a hollow floor mold, and the discharge end of the stirring device is connected with the feed end of the hollow floor mold; and the vibrating table is provided with a vibrating mechanism, and the working end of the vibrating mechanism can be in contact with the hollow floor mould on the mould containing station and drive the material inside the hollow floor mould to vibrate.
2. The hollow floor production apparatus of claim 1, wherein: the frame body comprises a support frame at the lower end and a transfer frame arranged above the support frame, and the support frame and the transfer frame are arranged independently; the material supply part structure is arranged on the transfer frame; the material metering device and the stirring device are arranged on the support frame; and the material supply part structure comprises a material output pipe which is vertically arranged downwards, the lower end of the material output pipe forms the material output port, the material metering device is provided with a material input pipe which is vertically upwards, and the material output pipe can be vertically slidably sleeved outside the material input pipe.
3. The hollow floor production apparatus as claimed in claim 2, wherein: the support frame and the transfer frame respectively comprise four lower support columns and four upper support columns which are vertical and are distributed in a rectangular mode in the horizontal direction, positioning holes are formed in the upper end faces of the lower support columns, positioning pin shafts are arranged at the lower ends of the upper support columns, the positioning pin shafts can be inserted into the positioning holes in a one-to-one correspondence mode, and the lower end faces of the upper support columns are enabled to be respectively attached to and supported on the upper end faces of the lower support columns.
4. The hollow floor production apparatus as claimed in claim 2, wherein: the material supply part structure comprises a hopper arranged at the upper end of the transfer frame, and the upper end of the hopper is arranged in an open manner and forms the material input port; the material supply part structure also comprises a horizontal feeding mechanism arranged below the hopper; the feeding end of the feeding mechanism is connected with the discharging end of the hopper; and the discharge end of the feeding mechanism forms the material output port.
5. The hollow floor production apparatus of claim 4, wherein: the feeding mechanism comprises a feeding pipe horizontally arranged at the lower end of the transfer frame, and the upper side surface of one end of the feeding pipe is provided with a feeding hole and is connected with the discharging end of the hopper; the lower side surface of the other end of the feeding pipe is provided with a discharge hole and connected with the material output pipe, a feeding shaft is arranged in the feeding pipe along the axial direction of the feeding pipe, one end of the feeding shaft is connected with a rotation driving device, and a feeding blade in a spiral structure is arranged on the feeding shaft;
the frame body is also provided with a water tank, the water tank is connected with a water supply pipe, and the far end of the water supply pipe is connected with the water inlet.
6. The hollow floor production apparatus of claim 1, wherein: the stirring device comprises a stirring barrel which is arranged obliquely downwards, and a feeding hole is formed in the upper side of the circumferential surface of the upper end of the stirring barrel and is used for being connected with the discharging end of the material metering device; the water inlet is formed in one side of the circumferential surface of the upper end of the stirring barrel; the lower end of the stirring barrel is open to form a stirring material output port, a sealing cover is hinged to the stirring material output port at the lower end of the stirring barrel, and a sealing cover vertical rotation control mechanism is arranged between the sealing cover and the stirring barrel to enable the sealing cover to vertically rotate and be arranged on the stirring material output port in a sealing mode; be equipped with the stirring structure on sealed lid, the stirring structure includes and installs at the inboard agitator disk of sealed lid through the (mixing) shaft, sealed outside of covering be equipped with actuating mechanism and with (mixing) shaft transmission connects, is equipped with a plurality of puddlers that outwards set up on agitator disk outside surface, is equipped with a plurality of stirring teeth on agitator disk circumferential surface.
7. The hollow floor production apparatus of claim 6, wherein: the stirring rods comprise a first stirring rod and a second stirring rod, the first stirring rod and the second stirring rod are respectively uniformly distributed along the circumferential direction of the stirring disc, the first stirring rod is positioned on the outer side of the second stirring rod, and the length of the first stirring rod is greater than that of the second stirring rod;
a plurality of connecting rods are uniformly arranged on the circumferential surface of the stirring disc, and the connecting rods form the stirring teeth.
8. The hollow floor production apparatus of claim 6, wherein: the upper end of the stirring barrel is open, a circular material pushing plate is arranged inside the upper end of the stirring barrel, a material pushing plate movement control mechanism is arranged between the frame body and the material pushing plate, and the material pushing plate can move downwards in the stirring barrel along the axial direction of the material pushing plate;
the outer side of the material pushing plate is provided with a backing plate in an attached mode, the material pushing plate movement control mechanism comprises a material pushing power cylinder, and the piston rod end of the material pushing power cylinder is connected with the backing plate;
the material pushing plate is made of a nylon material;
the circumferential upper side of the sealing cover is hinged with the circumferential upper side of the stirring barrel; the vertical rotation control mechanism of the sealing cover comprises a sealing power cylinder arranged on the circumferential upper side of the stirring barrel, the cylinder body end of the sealing power cylinder is hinged to the stirring barrel, the sealing cover is connected with a driving rod which is arranged obliquely downwards, the outer end of the driving rod is connected with a connecting block, and the piston rod end of the sealing power cylinder is hinged to the connecting block;
an observation hole is also arranged on the surface of one side of the upper end of the stirring barrel.
9. The hollow floor production apparatus of claim 1, wherein: the vibration table comprises a bracket with a rectangular structure, and the upper end surface of the bracket forms the mold containing station and is used for placing the hollow floor mold; a rectangular frame is horizontally arranged above the inner part of the bracket and on the upper end surface of the spacing bracket, a vibrator is fixedly arranged below the rectangular frame, a horizontal supporting member is also arranged below the rectangular frame, and the supporting member is connected with the rectangular frame through a vertical spring mechanism; and a vertical driving control mechanism is arranged between the supporting member and the support, and can control the supporting member to vertically move upwards, and push the rectangular frame to move upwards through a spring mechanism, so that the rectangular frame is supported on the lower end surface of the hollow floor mold on the mold containing station in an abutting mode.
10. The hollow floor production apparatus of claim 9, wherein: the rectangular frame is horizontally provided with a mounting plate, and the vibrating machine is mounted on the lower surface of the mounting plate;
four horizontal mounting blocks are arranged on the rectangular frame in a rectangular shape, guide rods which are vertically arranged downwards are arranged on the mounting blocks, guide blocks are respectively arranged on the brackets corresponding to the guide rods, and guide holes are formed in the guide blocks for the guide rods to be vertically inserted;
four corner positions on the upper surface of the rectangular frame are respectively provided with a positioning pin which is vertically upward, and the positioning pins can be correspondingly inserted into positioning holes arranged on the lower end surface of the hollow floor mould;
the four spring mechanisms are distributed in a rectangular shape in the horizontal direction, and the upper ends of the spring mechanisms are correspondingly connected to four corner positions below the rectangular frame one by one;
the spring mechanism comprises a vertical telescopic rod, two ends of the telescopic rod are respectively connected with the rectangular frame and the supporting member, a spiral spring is sleeved outside the telescopic rod, and two ends of the spiral spring are respectively supported on the rectangular frame and the supporting member in an abutting mode;
the vertical driving control mechanism comprises a driving member which is integrally in a long strip-shaped structure, one end of the driving member is hinged to the support in a vertically rotatable mode and extends to the middle position below the supporting member; the other end of the driving member extends to the outside of the bracket and forms an operating end; after the driving operation end moves downwards, the driving end can be abutted and supported below the supporting member and drive the supporting member to move vertically upwards;
a pedal is arranged at the driving end;
the middle part of the supporting member is provided with a vertical downward supporting column, and the lower end of the supporting column is of a ball head structure and is used for being abutted against the driving end for supporting.
CN202010956211.8A 2020-09-11 2020-09-11 Hollow floor production equipment Pending CN111993564A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010956211.8A CN111993564A (en) 2020-09-11 2020-09-11 Hollow floor production equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010956211.8A CN111993564A (en) 2020-09-11 2020-09-11 Hollow floor production equipment

Publications (1)

Publication Number Publication Date
CN111993564A true CN111993564A (en) 2020-11-27

Family

ID=73470054

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010956211.8A Pending CN111993564A (en) 2020-09-11 2020-09-11 Hollow floor production equipment

Country Status (1)

Country Link
CN (1) CN111993564A (en)

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