CN116653092A - One-time compression molding die for perforated ceramic plate and production process - Google Patents

One-time compression molding die for perforated ceramic plate and production process Download PDF

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Publication number
CN116653092A
CN116653092A CN202310676915.3A CN202310676915A CN116653092A CN 116653092 A CN116653092 A CN 116653092A CN 202310676915 A CN202310676915 A CN 202310676915A CN 116653092 A CN116653092 A CN 116653092A
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CN
China
Prior art keywords
die
lower die
ceramic plate
upper die
perforated ceramic
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
CN202310676915.3A
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Chinese (zh)
Inventor
钟剑平
唐菠
冯奕炜
赖小青
王固宁
舒生辉
钟任行
潘世伟
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Foshan Jingqing Technology Co ltd
Guangdong Vocational College of Environmental Protection Engineering
Original Assignee
Foshan Jingqing Technology Co ltd
Guangdong Vocational College of Environmental Protection Engineering
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Publication date
Application filed by Foshan Jingqing Technology Co ltd, Guangdong Vocational College of Environmental Protection Engineering filed Critical Foshan Jingqing Technology Co ltd
Priority to CN202310676915.3A priority Critical patent/CN116653092A/en
Publication of CN116653092A publication Critical patent/CN116653092A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00Moulds; Cores; Mandrels
    • B28B7/16Moulds for making shaped articles with cavities or holes open to the surface, e.g. with blind holes
    • B28B7/18Moulds for making shaped articles with cavities or holes open to the surface, e.g. with blind holes the holes passing completely through the article
    • B28B7/186Moulds for making shaped articles with cavities or holes open to the surface, e.g. with blind holes the holes passing completely through the article for plates, panels or similar sheet- or disc-shaped objects, also flat oblong moulded articles with lateral openings, e.g. panels with openings for doors or windows, grated girders
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B3/00Producing shaped articles from the material by using presses; Presses specially adapted therefor
    • B28B3/02Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form
    • B28B3/04Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form with one ram per mould
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00Moulds; Cores; Mandrels
    • B28B7/10Moulds with means incorporated therein, or carried thereby, for ejecting or detaching the moulded article
    • B28B7/12Moulds with means incorporated therein, or carried thereby, for ejecting or detaching the moulded article by fluid pressure, e.g. acting through flexible wall parts or linings of the moulds

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)

Abstract

The application relates to the technical field of ceramic plates, in particular to a die for one-time compression molding of a perforated ceramic plate and a production process, comprising a base, an upper die and a lower die, wherein the base consists of a bottom plate and a fixed block, the fixed block is symmetrically fixed on the bottom plate, and a mounting groove is formed between the fixed block and the bottom plate; the upper die is of a T-shaped structure with a vertical section, a plurality of upper die slot holes are uniformly formed in the position, close to the middle position, of the upper die at intervals, and first through holes are formed in two ends of the upper die; the lower die and the upper die have the same shape and structure, a lower die slot hole is formed in the position, corresponding to the upper die slot hole, of the lower die, second through holes are formed in the two ends of the lower die, a guide shaft guide sleeve is inserted between the first through holes and the second through holes, and the upper die and the lower die are movably connected with the guide shaft guide sleeve; the perforated ceramic plate is formed in one step, and the perforated ceramic plate is directly cast by using the die for one-piece forming, so that secondary processing is not needed, the manufacturing process is simplified, and the working efficiency and the yield are improved.

Description

One-time compression molding die for perforated ceramic plate and production process
Technical Field
The application relates to a one-time forming process, which is used for the technical field of manufacturing ceramic plates with sound absorption perforations, in particular to a one-time compression forming die and a production process of a perforated ceramic plate.
Background
The ceramic plate (brick) is a plate-shaped ceramic product made of clay, ore and other materials through a series of processes of forming, calcining and the like, and has the advantages of high hardness, environmental protection and the like. Therefore, the porcelain plate is a building decoration material which is widely used at present, the surface of the porcelain plate is generally smooth or has certain lines (mainly the design on aesthetic or decorative effect), the surface is smooth, the sound absorption effect is very poor (the sound reflection is very serious), when the porcelain plate material is used in large indoor spaces (such as a multifunctional gymnasium, a theatre, a KTV, a bar, a multimedia classroom and the like) and places needing tone quality control, the problems of sound field confusion, tone quality reduction and the like are caused because the sound reflection in the space is strong and the reverberation is serious, one of the solutions is to open holes in the ceramic plate, and the sound absorption cotton is filled in the open holes to reduce the noise, so that the noise elimination effect can be improved.
When current perforation ceramic plate (brick) production, mainly adopt ceramic plate (brick) finished product, use water sword or change the mode of hole to realize the trompil, this kind of trompil mode needs to divide the multistep processing mode to produce, it is low and with high costs to have restricted the application scenario of perforation ceramic plate (brick) greatly, simultaneously, the in-process that secondary processing trompil produced a large amount of waste materials, it is higher to lead to the cost loss, still lead to ceramic plate (brick) to receive the manual work to influence and take place to damage and break easily to receive the influence of machining precision, make the hole sound absorption effect that ceramic plate (brick) was opened not good.
Disclosure of Invention
The application aims to provide a die for one-time compression molding of a perforated ceramic plate and a production process thereof, which are used for solving one or more technical problems in the prior art.
In order to achieve the above purpose, the present application adopts the following technical scheme:
the die comprises a base, an upper die and a lower die, wherein the base consists of a bottom plate and a fixed block, the fixed block is symmetrically fixed on the bottom plate, and a mounting groove is formed between the fixed block and the bottom plate; the upper die is of a T-shaped structure with a vertical section, a plurality of upper die slot holes are uniformly formed in the position, close to the middle position, of the upper die at intervals, and first through holes are formed in the two ends of the upper die; the lower die and the upper die have the same shape and structure, a lower die slot hole is formed in the lower die at a position corresponding to the upper die slot hole, second through holes are formed in two ends of the lower die, a guide shaft guide sleeve is inserted between the first through holes and the second through holes, and the upper die and the lower die are movably connected with the guide shaft guide sleeve;
in a compression molding state, the upper die moves downwards along the guide shaft and guide sleeve to be pressed above the lower die, so that the upper die slot hole is connected with the lower die slot hole; and in the demolding state, the upper die and the lower die move upwards along the guide shaft and guide sleeve at the same time until the upper die slot hole and the lower die slot hole are separated.
Preferably, a tray is arranged between the upper die and the lower die, the tray is fixedly connected to the guide shaft and the guide sleeve, and a supporting structure is fixedly connected between two ends of the tray and the bottom plate.
Preferably, first hydro-pneumatic devices are symmetrically arranged between the lower die and the fixed block, and the first hydro-pneumatic devices drive the lower die to move up and down along the guide shaft and guide sleeve to finish pressing and demolding.
Preferably, the upper die slot hole and the lower die slot hole are axially arranged, a hole needle is inserted in the lower die slot hole, an ejector plate is fixedly connected to the bottom end of the hole needle, a second hydro-pneumatic device is connected between the ejector plate and the bottom plate, and the second hydro-pneumatic device is fixedly connected to the mounting groove.
Preferably, the top end of the hole needle is flat with the height of the material tray, and the hole needle is provided with a demoulding slope which is 15-30 degrees.
Preferably, the hole needle is made of metal steel, and the optional shape of the hole needle comprises a circle, a square, a triangle, a diamond, a bar, an ellipse and the like.
Preferably, the first and second hydropneumatic devices use hydraulic oil or gas as a transmission medium.
The production process of the one-time compression molding of the perforated ceramic plate adopts a one-time compression molding die of the perforated ceramic plate, and comprises the following steps:
s1, selecting materials and ceramic plates, wherein the ceramic plates have the performances of wear resistance, skid resistance, moisture resistance, mildew resistance, oil resistance, acid resistance and the like, the glossiness and the roughness meet the national standard requirements, the thickness of the ceramic plate material is 0-25 mm, and the width dimension is 200-2400 mm;
s2, charging and downward moving the lower die under the driving of the hydraulic pneumatic device until the height of the hole needle protrudes out of the surface of the lower die, so that a forming groove is formed between the lower die and the material tray, and powder is flatly paved on the forming groove, wherein the height of the hole needle is flush with the surface of the material tray during charging, and redundant powder is scraped in cooperation with the charging process;
s3, pressing the powder in the forming groove downwards by the upper die to increase the density of the powder until dry pressing forming, and inserting the hole needle into the upper die slot hole in the pressing process to form a ceramic plate with perforations after the powder is pressed and formed, wherein the shape and arrangement of the perforations are controlled by the arrangement of the shape of the hole needle;
s4, discharging, wherein the upper die and the lower die synchronously move upwards along the guide shaft guide sleeve until the upper die leaves the material tray to restore to the original position, the surface of the lower die is kept flat with the height of the hole needle, and meanwhile, the ejector pin plate is driven by the second hydro-pneumatic device to drive the hole needle to be ejected upwards to be matched with demoulding discharging;
s5, after resetting and taking out the perforated ceramic plate formed by dry pressing, the lower die is driven by the first hydro-pneumatic device to move downwards to the original position, so that the manufacturing of the perforated ceramic plate for one time is completed.
Preferably, the depth of the forming groove is 0-50 mm, and the width dimension is 200-2400 mm.
In summary, the beneficial effects of the application are as follows:
1. the perforated ceramic plate is formed in one step, so that the market cost advantage is obvious, the market prospect is huge, the integral forming die and the production process thereof are adopted, the forming problem of the perforated ceramic plate is solved, the production cost of the perforated ceramic plate is greatly reduced, and a cost foundation is laid for large-scale application of the perforated ceramic plate; meanwhile, compared with the prior integrally formed perforated ceramic production process, the method has the advantages that the raw materials such as powder materials are extremely simple to separate, the perforated ceramic plate is directly cast by using the die for integrally forming, secondary processing is not needed, the manufacturing process is simplified, and the working efficiency and the yield are improved.
2. The perforated ceramic plate is directly formed into the perforated ceramic plate by die casting from powder by using a die, and is integrally formed by using a plurality of holes and needles according to a certain arrangement and combination of array holes, and the whole holes and needles work cooperatively, so that a large number of holes on the ceramic plate are formed at one time. Meanwhile, the heat conduction and heat transfer effects of the brick blanks are better and the energy is saved in the firing process; in addition, the production process of the perforated ceramic plate is simple, secondary processing and waste material production are avoided, the production cost is greatly reduced, meanwhile, the perforated ceramic plate produced by pressing through the die has better sound absorption effect, the hole pattern arrangement of the processed ceramic plate is different according to the different hole needle shape arrangement on the die, and thus the plate type of the perforated ceramic plate is enriched, and the application scene is wide.
3. According to the application, holes are arranged on the traditional ceramic plate according to a certain rule, and the shape and arrangement rule of the holes enable the brand-new structure to have an acoustic function and sound absorption capacity, and meanwhile, the perforated ceramic plate can achieve the decoration effect of ceramic, achieve good sound field control and achieve sound quality control effects of sound absorption, noise reduction and the like.
Drawings
The application is further described below with reference to the drawings and examples;
fig. 1 is a schematic structural view of a die for one-time compression molding of a perforated ceramic plate according to the present application;
fig. 2 is a front view of a die for one-time compression molding of the perforated ceramic plate of the present application;
fig. 3 is a front view of a die for one-time compression molding of the perforated ceramic plate of the present application;
fig. 4 is a cross-sectional view of a perforated ceramic plate according to the present application;
fig. 5 is a view showing a triangular arrangement of circular holes of the perforated ceramic plate according to the present application;
fig. 6 is a view of a square arrangement of circular holes of the perforated ceramic plate of the application;
fig. 7 is a diagram showing a staggered arrangement of circular holes of the perforated ceramic plate according to the present application;
fig. 8 is a view of a circular hole bar arrangement pattern of the perforated ceramic plate of the present application;
fig. 9 is a view showing a layout pattern of circular holes of the perforated ceramic plate according to the present application;
fig. 10 is a view showing a square-hole triangular arrangement pattern of the perforated ceramic plate of the present application;
fig. 11 is a 90 deg. arrangement of square holes of the perforated ceramic plate according to the present application;
fig. 12 is a diagram of a triangular arrangement of prismatic holes of the perforated ceramic plate according to the present application;
fig. 13 is a view showing an oval-shaped triangular arrangement of holes of the perforated ceramic plate according to the present application;
fig. 14 is a line hole arrangement pattern diagram of the perforated ceramic plate of the present application;
fig. 15 is a regular hollow Kong Xingshi view of the perforated ceramic plate according to the present application;
fig. 16 is a view of another regular hollows Kong Xingshi of the perforated ceramic plate according to the application;
fig. 17 is a graph of circles Kong Xingshi of the perforated ceramic plate of the present application having a perforation rate of 17%;
fig. 18 is a graph of circles Kong Xingshi of the perforated ceramic plate of the present application having a perforation rate of 19.6%;
fig. 19 is a graph of circles Kong Xingshi of the perforated ceramic plate of the present application having a perforation rate of 13.6%;
fig. 20 is a graph of square Kong Xingshi with a perforation rate of 17.3% for the perforated ceramic plate according to the present application;
fig. 21 is a graph of prismatic Kong Xingshi perforated ceramic plates of the present application having a perforation rate of 17.3%;
fig. 22 is a graph of circles Kong Xingshi of the perforated ceramic plate of the present application having a perforation rate of 1.7%;
FIG. 23 is a graph of a slit arrangement of the perforated ceramic plate of the present application having a penetration rate of 8%;
fig. 24 is a graph of circles Kong Xingshi of the perforated ceramic plate of the present application having a perforation rate of 2.3%;
fig. 25 is a graph showing a slit arrangement pattern having a perforation ratio of 20% for the perforated ceramic plate according to the present application.
Reference numerals in the drawings illustrate:
1. a base; 11. a bottom plate; 12. a fixed block; 13. a mounting groove; 2. an upper die; 21. an upper die slot; 22. a first through hole; 3. a lower die; 31. a lower die slot; 32. a second through hole; 4. guide shaft guide sleeve; 5. a material tray; 51. a forming groove; 6. a support structure; 7. a first hydropneumatic device; 8. a hole needle; 81. a needle ejection plate; 9. a second hydropneumatic device; 10. a ceramic plate.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the application, fall within the scope of protection of the application.
It will be appreciated by those skilled in the art that in the present disclosure, the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," etc. refer to an orientation or positional relationship based on that shown in the drawings, which is merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore the above terms should not be construed as limiting the present application.
In the description of the present application, if there is a word description such as "a plurality" or the like, the meaning of the plurality is one or more, the meaning of the plurality is two or more, and greater than, less than, exceeding, etc. are understood to exclude the present number, and above, below, within, etc. are understood to include the present number. The description of first, second, and third is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of technical features indicated.
Referring to fig. 1 to 25, a mold and a production process for one-time compression molding of a perforated ceramic plate according to the present application are described below as several embodiments.
Embodiment one.
The die for one-time compression molding of the perforated ceramic plate comprises a base 1, an upper die 2 and a lower die 3, wherein the base 1 consists of a bottom plate 11 and a fixed block 12, the fixed block 12 is symmetrically fixed on the bottom plate 11, and a mounting groove 13 is formed between the fixed block 12 and the bottom plate 11; the upper die 2 has a T-shaped structure with a vertical section, a plurality of upper die slots 21 are uniformly formed in the position, close to the middle position, of the upper die 2 at intervals, and first through holes 22 are formed in two ends of the upper die 2; the lower die 3 has the same shape and structure as the upper die 2, a lower die slot hole 31 is formed in the lower die 3 at a position corresponding to the upper die slot hole 21, second through holes 32 are formed in two ends of the lower die 3, a guide shaft guide sleeve 4 is inserted between the first through hole 22 and the second through holes 32, and the upper die 2 and the lower die 3 are movably connected with the guide shaft guide sleeve 4; in the compression molding state, the upper die 2 moves downwards along the guide shaft and guide sleeve 4 to be pressed above the lower die 3, so that the upper die slot hole 21 is connected with the lower die slot hole 31; in the demolding state, the upper die 2 and the lower die 3 move upwards along the guide shaft and guide sleeve 4 at the same time until the upper die slot 21 and the lower die slot 31 are separated.
Specifically, the preparation methods commonly adopted in the prior porous sound-absorbing ceramic materials include a particle stacking method, a pore-forming agent adding method, a gas foaming method and the like, but the perforated ceramic plate 10 prepared by the methods has the defects of high strength, low sound absorption performance and insufficient sound absorption performance, and the study on the firing process of the slit ceramic plate 10 and the perforated ceramic plate 10 is mentioned in the manual of noise and vibration control technology, but the study on how to form is not mentioned, wherein Zhu Legeng teaches that the ceramic plate 10 is manufactured by using a manual perforation method, and the method has the defects that: on the one hand, there is no method for industrialization, and on the other hand, the manual perforation is relatively large in deformation during firing and unstable in performance, so that the defect of the perforated ceramic plate 10 cannot be effectively solved; compared with the pressing and forming of the ceramic plate 10 in the prior art, the pressing and forming method can only press single or small number of open holes in the existing die, the die can press a plurality of open holes at the same time, the diameter of the open holes is small and the number of the open holes is very large, the number of the open holes is not one order of magnitude compared with the prior art, the effect of the open holes of the die in the prior art is generally that the ceramic plate 10 after pressing is convenient to install, the ceramic plate 10 after pressing has no sound absorption function, the ceramic plate 10 after pressing has good sound absorption function, meanwhile, the requirement on demolding of green bricks in the pressing process is higher, the upper die 2 and the lower die 3 are matched with the guide shaft and guide sleeve 4 for demolding, so that the ceramic plate 10 is effectively prevented from sticking in the demolding process, and the demolding effect is better.
Example two
On the basis of the above embodiment, in this embodiment, a tray 5 is disposed between the upper die 2 and the lower die 3, the tray 5 is fixedly connected to the guide shaft and guide sleeve 4, and a supporting structure 6 is fixedly connected between two ends of the tray 5 and the bottom plate 11.
Specifically, the upper die 2 can move up and down along the guide shaft and guide sleeve 4, and one end of the upper die 2 is externally connected with a power source (not shown in the figure), so that the upper die 2 can be controlled to move, and meanwhile, a hole needle 8 can be matched between the upper die slot 21 and the lower die slot 31 to punch and form the pressed ceramic plate 10; and the array holes which are arranged and combined according to the hole needles 8 are integrally formed, and the difference between the array holes and the prior art is that: the die of the application needs a large number of holes to be formed at one time, so that the hole needles 8 need to work cooperatively, but the prior patent mostly adopts manual drilling or can only singly open holes, so that no cooperative work exists; meanwhile, the brick blank pressed by the die has better heat conduction and heat transfer effects and is more energy-saving.
In the embodiment, first hydro-pneumatic devices 7 are symmetrically arranged between the lower die 3 and the fixed block 12, and the first hydro-pneumatic devices 7 drive the lower die 3 to move up and down along the guide shaft and guide sleeve 4 to finish die pressing and die stripping.
In this embodiment, the upper die slot 21 and the lower die slot 31 are axially arranged, a hole needle 8 is inserted into the lower die slot 31, a thimble plate 81 is fixedly connected to the bottom end of the hole needle 8, a second hydro-pneumatic device 9 is connected between the thimble plate 81 and the bottom plate 11, and the second hydro-pneumatic device 9 is fixedly connected in the mounting groove 13.
In the present embodiment, the first and second hydropneumatic devices 7 and 9 use hydraulic oil or gas as a transmission medium.
Specifically, after the lower die 3 moves down to the upper surface lower than the top surface of the tray 5, the space formed between the lower die 3 and the tray 5 is the forming groove 51, and the hole needle 8 protrudes out of the forming groove 51, when the ceramic plate 10 is pressed, raw material powder is poured into the forming groove 51, and as the hole needle 8 protrudes out of the forming groove 51, in the pressing process, after the powder is formed, the hole needle 8 exits from the forming groove 51, so that the formed ceramic plate 10 forms a porous structure; in addition, the lower die 3 is moved up along the guide shaft and guide sleeve 4 by the first hydro-pneumatic device 7 and then is moved to be at least flush with the top surface of the tray 5, so that the perforated ceramic plate 10 formed by pressing is ejected from the forming groove 51.
Example III
Based on the above embodiment, in this embodiment, the top end of the hole needle 8 is level with the height of the tray 5, and the hole needle 8 is provided with a demoulding slope, and the demoulding slope is 15 ° to 30 °; the hole needle 8 is made of metal steel, and alternative shapes of the hole needle 8 include round, square, triangle, diamond, bar, ellipse and the like.
Specifically, the hole needle 8 plays a very important role in the die, the quantity, shape and arrangement of the hole needle 8 are directly related to the perforation shape and arrangement of the ceramic plate 10, and the sound absorption effect of the perforated ceramic plate 10 is more directly affected, so that the hole needle 8 is particularly important in demolding, and the hole needle 8 is provided with a demolding slope of 15-30 degrees in the die, so that the hole needle 8 is driven by the second hydro-pneumatic device 9 to move upwards to eject and demold under the driving of the ejector plate 81, and the demolding process is simple and quick and does not stick to the die.
Example IV
A process for the production of a perforated ceramic plate 10 by one-time compression molding, which adopts a die for the one-time compression molding of the perforated ceramic plate 10, comprising the following steps:
s1, selecting materials, wherein the ceramic plate 10 has the performances of wear resistance, skid resistance, moisture resistance, mildew resistance, oil resistance, acid resistance and the like, the glossiness and the roughness meet the national standard requirements, the thickness of the ceramic plate 10 material is 0-25 mm, and the width dimension is 200-2400 mm;
s2, charging and downward moving the lower die 3 under the drive of a hydro-pneumatic device until the height of the hole needle 8 protrudes out of the surface of the lower die 3, forming a forming groove 51 between the lower die 3 and the material tray 5, and spreading powder on the forming groove 51, wherein the height of the hole needle 8 is flush with the surface of the material tray 5 during charging, and scraping off redundant powder in cooperation with the charging process;
s3, pressing, namely pressing the powder in the forming groove 51 downwards by the upper die 2 to increase the density of the powder until dry pressing forming, and inserting the hole needle 8 into the upper die slot 21 in the pressing process to form the ceramic plate 10 with perforations after the powder is pressed and formed, wherein the shape and arrangement of the openings are controlled by the arrangement of the shape of the hole needle 8;
s4, discharging, wherein the upper die 2 and the lower die 3 synchronously move upwards along the guide shaft guide sleeve 4 until the upper die 2 leaves the material tray 5 to restore to the original position, the surface of the lower die 3 is level with the height of the hole needle 8, and simultaneously, the ejector pin plate 81 drives the hole needle 8 to be ejected upwards under the drive of the second hydro-pneumatic device 9 to be matched with demoulding discharging;
s5, after resetting and taking out the perforated ceramic plate 10 formed by dry pressing, the lower die 3 is driven by the first hydro-pneumatic device 7 to move downwards to the original position, and the production of the perforated ceramic plate 10 is completed once.
In this embodiment, the depth of the molding groove 51 is 0 to 50mm and the width dimension is 200 to 2400mm.
Specifically, the production process relies on the mould to carry out semi-dry compression molding, and in the compression process, the mould relies on the upper mould 2 and the lower mould 3 to cooperate with the hole needle 8 to accomplish the ceramic plate 10 and press the perforation for ceramic plate 10 one shot forming has shortened production time and cost greatly, and the production specification of ceramic plate 10 can be adjusted according to the size of shaping groove 51, has improved the suitability of this mould.
In addition, as shown in fig. 4 to 25, the perforated ceramic plate 10 pressed by the mold and the production process of the application has rich patterns, wherein different perforation shapes and pattern arrangements have different sound absorption effects, but the hole patterns and arrangement of all the perforated ceramic plates 10 are controlled by the structures and arrangement of the hole needles 8, when the perforation patterns of different ceramic plates 10 are required to be pressed, only the shapes and arrangement modes of the hole needles 8 are required to be replaced, the mold is not required to be replaced when the patterns are changed, the time is greatly saved, the production efficiency of pressing is effectively improved, and the perforation rate of the ceramic plate 10 is greatly improved, so that good sound absorption performance and strength performance are achieved.
The perforated ceramic plate 10 of the present application has advantages over the conventional ceramic plate 10 in that: the one-step forming is adopted, so that the market cost advantage is obvious, the market prospect is huge, the forming problem of the perforated ceramic plate 10 is solved by adopting the integrated forming die and the production process thereof, the production cost of the perforated ceramic plate 10 is greatly reduced, and a cost foundation is laid for large-scale application of the perforated ceramic plate 10; meanwhile, compared with the prior integrally formed perforated ceramic production process, the method has the advantages that the raw materials such as powder materials are extremely simple to separate, the perforated ceramic plate 10 is directly cast by using the die for integrally forming, secondary processing is not needed, the manufacturing process is simplified, and the working efficiency and the yield are improved. Meanwhile, the perforated ceramic plate 10 is directly die-cast from powder by using a die to form the perforated ceramic plate 10, and the plurality of hole needles 8 are integrally formed according to a certain array of holes, so that the integral cooperation of the hole needles 8 can meet the requirement of one-step forming of a large number of holes on the ceramic plate 10. Meanwhile, the heat conduction and heat transfer effects of the brick blanks are better and the energy is saved in the firing process; in addition, the production process of the perforated ceramic plate 10 is simple, secondary processing and waste generation are avoided, the production cost is greatly reduced, meanwhile, the perforated ceramic plate 10 produced by using the die for pressing has better sound absorption effect, and the hole pattern arrangement of the processed ceramic plate 10 is different according to the different shape arrangement of the hole needles 8 on the die, so that the plate pattern of the perforated ceramic plate 10 is enriched, and the application scene is wide.
According to the application, holes are arranged on the traditional ceramic plate 10 according to a certain rule, and the shape and arrangement rule of the holes enable the brand new structure to have an acoustic function and sound absorption capability, and meanwhile, the perforated ceramic plate 10 can achieve ceramic decoration effect, good sound field control and sound quality control effects required by sound absorption, noise reduction and the like.
The embodiments of the present application are all preferred embodiments of the present application, and are not intended to limit the scope of the present application, wherein like reference numerals are used to refer to like elements throughout. Therefore: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.

Claims (9)

1. The die for one-time compression molding of the perforated ceramic plate comprises a base, an upper die and a lower die, and is characterized in that the base consists of a bottom plate and a fixed block, the fixed block is symmetrically fixed on the bottom plate, and a mounting groove is formed between the fixed block and the bottom plate; the upper die is of a T-shaped structure with a vertical section, a plurality of upper die slot holes are uniformly formed in the position, close to the middle position, of the upper die at intervals, and first through holes are formed in the two ends of the upper die; the lower die and the upper die have the same shape and structure, a lower die slot hole is formed in the lower die at a position corresponding to the upper die slot hole, second through holes are formed in two ends of the lower die, a guide shaft guide sleeve is inserted between the first through holes and the second through holes, and the upper die and the lower die are movably connected with the guide shaft guide sleeve;
in a compression molding state, the upper die moves downwards along the guide shaft and guide sleeve to be pressed above the lower die, so that the upper die slot hole is connected with the lower die slot hole; and in the demolding state, the upper die and the lower die move upwards along the guide shaft and guide sleeve at the same time until the upper die slot hole and the lower die slot hole are separated.
2. The die for one-time compression molding of a perforated ceramic plate according to claim 1, wherein a tray is arranged between the upper die and the lower die, the tray is fixedly connected to the guide shaft sleeve, and a supporting structure is fixedly connected between two ends of the tray and the bottom plate.
3. The die for one-time compression molding of a perforated ceramic plate according to claim 2, wherein first hydropneumatic devices are symmetrically arranged between the lower die and the fixed block, and the first hydropneumatic devices drive the lower die to move up and down along the guide shaft guide sleeve to finish compression molding and demolding.
4. A mould for one-time compression moulding of a perforated ceramic plate according to claim 3, wherein the upper mould slot hole and the lower mould slot hole are axially arranged, a hole needle is inserted in the lower mould slot hole, an ejector plate is fixedly connected to the bottom end of the hole needle, a second hydro-pneumatic device is connected between the ejector plate and the bottom plate, and the second hydro-pneumatic device is fixedly connected in the mounting groove.
5. A mould for one-time compression moulding of perforated ceramic plates according to claim 4, wherein the top height of the pins is level with the height of the tray and the pins are provided with a draft angle of 15 ° to 30 °.
6. A mould for one-time compression moulding of perforated ceramic plates according to claim 5, wherein the pins are made of metal steel and the alternative shapes of the pins include circular, square, triangular, diamond, bar, oval, etc.
7. The one-time compression molding die for perforated ceramic plates according to claim 6, wherein the first and second hydro-pneumatic devices use hydraulic oil or gas as a transmission medium.
8. A process for the production of a perforated ceramic plate by one-time compression molding, characterized in that it uses a die for the one-time compression molding of a perforated ceramic plate according to any one of claims 1 to 7, comprising the steps of:
s1, selecting materials and ceramic plates, wherein the ceramic plates have the performances of wear resistance, skid resistance, moisture resistance, mildew resistance, oil resistance, acid resistance and the like, the glossiness and the roughness meet the national standard requirements, the thickness of the ceramic plate material is 0-25 mm, and the width dimension is 200-2400 mm;
s2, charging and downward moving the lower die under the driving of the hydraulic pneumatic device until the height of the hole needle protrudes out of the surface of the lower die, so that a forming groove is formed between the lower die and the material tray, and powder is flatly paved on the forming groove, wherein the height of the hole needle is flush with the surface of the material tray during charging, and redundant powder is scraped in cooperation with the charging process;
s3, pressing the powder in the forming groove downwards by the upper die to increase the density of the powder until dry pressing forming, and inserting the hole needle into the upper die slot hole in the pressing process to form a ceramic plate with perforations after the powder is pressed and formed, wherein the shape and arrangement of the perforations are controlled by the arrangement of the shape of the hole needle;
s4, discharging, wherein the upper die and the lower die synchronously move upwards along the guide shaft guide sleeve until the upper die leaves the material tray to restore to the original position, the surface of the lower die is kept flat with the height of the hole needle, and meanwhile, the ejector pin plate is driven by the second hydro-pneumatic device to drive the hole needle to be ejected upwards to be matched with demoulding discharging;
s5, after resetting and taking out the perforated ceramic plate formed by dry pressing, the lower die is driven by the first hydro-pneumatic device to move downwards to the original position, so that the manufacturing of the perforated ceramic plate for one time is completed.
9. A process for the production of a perforated ceramic plate by one-time compression molding according to claim 8, wherein the depth of the molding groove is 0 to 50mm and the width dimension is 200 to 2400mm.
CN202310676915.3A 2023-06-08 2023-06-08 One-time compression molding die for perforated ceramic plate and production process Pending CN116653092A (en)

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CN202310676915.3A CN116653092A (en) 2023-06-08 2023-06-08 One-time compression molding die for perforated ceramic plate and production process

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CN202310676915.3A CN116653092A (en) 2023-06-08 2023-06-08 One-time compression molding die for perforated ceramic plate and production process

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117863314A (en) * 2024-03-13 2024-04-12 晋江信路达机械设备有限公司 Foaming ceramic plate production and processing equipment and working method thereof
CN117962097A (en) * 2023-12-31 2024-05-03 广东昊晟陶瓷有限公司 Production process of die surface anti-slip ceramic tile

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117962097A (en) * 2023-12-31 2024-05-03 广东昊晟陶瓷有限公司 Production process of die surface anti-slip ceramic tile
CN117863314A (en) * 2024-03-13 2024-04-12 晋江信路达机械设备有限公司 Foaming ceramic plate production and processing equipment and working method thereof
CN117863314B (en) * 2024-03-13 2024-06-04 晋江信路达机械设备有限公司 Foaming ceramic plate production and processing equipment and working method thereof

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