CN112873872B - Ceramic grain weaving composite process - Google Patents
Ceramic grain weaving composite process Download PDFInfo
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- CN112873872B CN112873872B CN201911209925.6A CN201911209925A CN112873872B CN 112873872 B CN112873872 B CN 112873872B CN 201911209925 A CN201911209925 A CN 201911209925A CN 112873872 B CN112873872 B CN 112873872B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/44—Joining a heated non plastics element to a plastics element
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/74—Joining plastics material to non-plastics material
- B29C66/746—Joining plastics material to non-plastics material to inorganic materials not provided for in groups B29C66/742 - B29C66/744
- B29C66/7461—Ceramics
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- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
The invention relates to a ceramic particle weaving composite process, which comprises the following specific steps: preparing materials, weaving, turning over a die, preheating, installing a screen frame and performing hot melting pressing. The patterns of the braided fabric can be conveniently and quickly braided by means of a tooling plate in the braiding process; and the tool disc bearing the ceramic particles is sent into the electric roller kiln to achieve uniform heating of the whole body, the flat press is reused, all the convex columns of the net frame can be inserted into the forming holes of the ceramic particles once, the hot melting composite action is completed, the needle plate is separated from the net frame to the finished product, the time is less than one minute, and the man-machine cooperation is realized to improve the weaving and composite efficiency of the ceramic particles.
Description
The technical field is as follows:
the invention relates to a ceramic grain weaving and compounding process, in particular to a process for compounding ceramic grains with well edited patterns on a tool disc into a whole through hot melting of a net frame.
Background art:
the civil development of the ceramic material is not always stopped, the ceramic material is simply manufactured by hand in small batch from the old, and the ceramic material is developed into mechanical production, but a large amount of hand work is still needed for some patterns and products needing to be stringed. The patent application No. 200820102999.0 discloses a ceramic plastic composite product, which comprises a ceramic sheet formed and sintered by molding and a plastic cushion layer formed by injection molding, wherein the surface of the ceramic sheet is flat, the bottom of the ceramic sheet is at least provided with a bearing concave, the bearing concave is of a structure with a large inner opening or a small needle hole radiating towards the periphery of the ceramic sheet from the bottom of the bearing concave, or ribs are distributed on the inner wall of the bearing concave, tenons capable of being inserted into the bearing concave from the bottom of the ceramic sheet are uniformly distributed on the surface of the plastic cushion layer, and the ceramic sheet is fixed on the plastic cushion layer by hot melting according to the matching of the bearing concave and the tenons. The technology solves the trouble of the traditional nylon thread string weaving, and can cut various smaller products. However, the hot-melting compounding process cannot be well solved, the efficiency is still low, and the quality is difficult to guarantee.
How to provide a scheme which is convenient for weaving patterns and synchronous hot melting compounding is the object of the research of the invention.
The invention content is as follows:
the invention aims to provide a ceramic particle weaving and compounding process which weaves ceramic particle patterns on a tool disc and is combined with a net frame in a hot melting way after being heated.
The technical scheme of the invention is realized as follows:
a ceramic grain weaving composite process is characterized in that: the composite process comprises the following steps:
firstly, preparing materials, namely preparing a screen frame formed by ceramic particles and plastic; preparing a tooling plate, an aluminum template and a positioning plate which have the same specification with the screen frame; bearing concave parts which correspond to the grid cross point convex columns of the screen frame and can contain ceramic particles are processed on the tool plate and the aluminum template; the positioning plate is provided with through holes corresponding to the convex columns at the cross points of the grids of the screen frame, and the aperture of each through hole is equal to the diameter of each convex column;
weaving, namely weaving ceramic particles on the tool disc according to the design pattern, and placing the ceramic particles with the right side upwards in a bearing concave of the tool disc;
turning over the die, namely taking an aluminum die plate, reversely buckling the aluminum die plate on a tooling plate, turning over the aluminum die plate by 180 degrees, turning over and transferring the ceramic grains to the aluminum die plate, wherein the bottoms of the ceramic grains are upward;
preheating, namely feeding the aluminum template carrying the ceramic particles into an electric roller kiln for heating until the temperature reaches the melting temperature of the screen frame;
fourthly, mounting the screen frame, taking a positioning plate, putting the screen frame upside down on the positioning plate, inserting the convex columns on all the cross points into the through holes, keeping the screen frame to be flatly attached to the surface of the positioning plate, and forming constraint on the flexible screen frame by means of the positioning plate and having a boundary alignment reference;
fifthly, hot melting pressing, namely preparing a flat press, wherein the flat press comprises a needle plate, a stripper plate and a tooling platform which are driven by a cylinder to lift, needles corresponding to convex columns on the screen frame are uniformly distributed on the needle plate, and the center distance of adjacent needles is equal to that of adjacent convex columns on the screen frame; the stripper plate is provided with needle holes corresponding to the needling and is driven by the independent stripper cylinder to lift relative to the needle plate;
the process of entering the flat press comprises the following steps: the positioning plate with the net frame is sent to a tool platform, pushed forwards and pushed by one side, and abutted against a right-angle reference edge arranged on the tool platform by virtue of a right-angle edge of the positioning plate to be aligned; the cylinder drives the needle plate to descend, the needle on the needle plate is inserted into the forming hole at the bottom of the convex column of the net frame, the net frame is taken away from the positioning plate along with the raised needle plate, and the needle plate is withdrawn from the positioning plate; secondly, prepressing, namely feeding the preheated aluminum template bearing the ceramic particles into a tooling platform, and aligning the aluminum template to a right-angle reference edge of the tooling platform; the cylinder drives the needle plate to descend for the second time, the convex columns on the screen frame are pressed into the embedding holes at the bottoms of the ceramic particles, hot melting is formed by means of heat of the ceramic particles, the prepressing time is 3-7 seconds, the pressure value is 4MPa, and the needle plate is quickly lifted; at the moment, the convex columns of the screen frame are embedded into the embedding holes and the surface of the convex columns is hot-melted and adsorbed, the convex columns and the ceramic particles are brought together and separated from the aluminum template, and the aluminum template is sent to preheating circulation or heat preservation treatment; maintaining the pressure, namely descending the needle plate for the third time, pressing the ceramic particles and the screen frame on the tool platform together, wherein the pressure value is not higher than 4M Pa, and keeping the pressure value for 20 to 35 seconds; fully extruding the preliminarily melted convex column plastic into the embedding hole, and cooling and solidifying; and fourthly, demolding, wherein the cylinder drives the needle plate to move upwards, the demolding cylinder is started simultaneously, the demolding plate is ejected out towards the end part of the needle prick, the needle prick is separated from the net frame, the compounded product is taken down, and the product is cooled at normal temperature to obtain a finished product.
The woven ceramic particles refer to color patterns of the woven ceramic particles, and the patterns are formed by hot-melting and fixing the ceramic particles with different colors at different positions of the screen frame.
The net frame main body is of a rectangular structure, a half of convex column extends outwards to form a connecting rib at each of four edges, and a convex pin capable of being inserted into a forming hole at the bottom of the convex column is formed at the end part of the connecting rib; the bottom of the other half of the convex column is outwards formed with a groove for the connecting rib to be embedded in; the connecting ribs and the grooves on the four edges are rotationally and symmetrically distributed and can be spliced with any screen frame with the same specification.
The tool plate, the aluminum template and the positioning plate as well as the needle plate and the stripper plate on the flat press are all correspondingly arranged by taking the screen frame as a standard.
The invention has the characteristics of reasonable flow, simple action and high weaving and compounding efficiency; by means of the tooling plate, patterns of the braided fabric can be conveniently and quickly compiled, the tooling plate bearing the ceramic grains is sent into the electric roller kiln to achieve uniform heating of the whole body, the flat press is reused, all protruding columns of the net frame can be inserted into forming holes of the ceramic grains once, hot melting compounding is completed, the net frame is separated from the needle plate to a finished product, and the man-machine cooperation is realized to improve the efficiency of weaving and compounding the ceramic grains within one minute.
Description of the drawings:
the invention is further illustrated with reference to the following specific figures:
FIG. 1 is a schematic view of a tooling plate
FIG. 2 is a partial schematic view of a platen press
FIG. 3 is a partially exploded view of a platen press
FIG. 4 is a schematic view of a platen press before hot-melting
Wherein
1-cylinder 2-back plate 21-guide pillar 3-tooling platform
31-right-angle reference edge 4-needle plate 41-needling 5-stripping plate
51-pinhole 52-demoulding cylinder 6-tooling plate 61-bearing concave
7-positioning plate 71-through hole 8-screen frame 81-convex column
82-forming hole 83-connecting rib 84-convex pin 85-groove
9-ceramic grain 91-embedding hole
The specific implementation mode is as follows:
referring to fig. 1 to 4, the part of the flat press includes a lifting back plate 2 and a tooling platform 3 driven by a cylinder 1, wherein the back plate 2 is used for locking a needle plate 4 and positioning a stripper plate 5, and can drive the needle plate 4 to lift to complete various tasks; therefore, four guide posts 21 are arranged outside the cylinder to ensure that the lifting action of the back plate 2 is kept horizontal and the pressure is balanced, and the cylinder body end of the cylinder 1 and the sleeves of the guide posts are locked on a cantilever of the flat press, which is omitted in the known equipment drawing; the tool platform 3 is used for placing tools, namely an aluminum template and a positioning plate 7; the tool disc 6 for weaving the ceramic grain pattern is actually the same as the aluminum template, but for stably receiving the lower ceramic grains 9, bearing concave 51 capable of receiving the ceramic grains are formed on the surface, and the distance between the bearing concave 51 corresponds to the convex columns 81 on the screen frame 8. The woven ceramic particles refer to color patterns of the woven ceramic particles, and the patterns are formed by hot-melting and fixing the ceramic particles with different colors at different positions of the screen frame 8; or the ceramic particles with different sizes and specifications and geometric shapes of the outer contour are arranged at different positions to form a pattern combination.
For this reason, the tool plate 6, the aluminum mold plate and positioning plate 7, and the needle plate 4 and the stripper plate 5 are designed based on the screen frame 8, and the positions and specifications of the convex columns 81 on the screen frame are changed, and the parts are required to be adjusted correspondingly.
The main body of the screen frame 8 is a rectangular structure, convex columns 81 are formed at the cross points of grids of the screen frame, forming holes 82 are formed at the bottoms of the convex columns, a half of each convex column 81 at each of the four edges of the rectangular structure extends outwards to form a connecting rib 83, and a convex pin 84 capable of being inserted into the forming hole 82 at the bottom of the convex column is formed at the end of each connecting rib 83; a groove 85 for embedding the connecting rib 83 is formed outwards at the bottom of the other half of the convex column 81; the connecting ribs 83 and the grooves 85 on the four edges are rotationally and symmetrically distributed, and can be mutually spliced with any screen frame 8 with the same specification, namely, a finished product unit of the screen frame 8 can be utilized to splice a finished product with a larger specification.
More specifically, the needle plates 4 are uniformly distributed with needles 41 corresponding to the convex columns 71 on the screen frame, and the center distance between adjacent needles 41 is equal to the center distance between adjacent convex columns 71 on the screen frame; the stripper plate 5 is provided with needle holes 51 corresponding to the needle pricks 41 and is driven by an independent stripper cylinder 52 to lift relative to the needle plate 4; a demoulding cylinder 52 is respectively arranged at the four corners of the demoulding plate 5 and is driven synchronously; the demoulding cylinder 52 is positioned on the back plate 2, the piston end of the cylinder is locked on the demoulding plate 5, the synchronous action pushes the demoulding plate 5 downwards, the needle pricks 41 on the needle plate are relatively retracted, and therefore the state of being inserted into the screen frame forming hole 82 is separated, and the finished product demoulding action is realized.
The ceramic grain weaving composite process comprises the following specific steps:
firstly, preparing materials, namely preparing ceramic particles 9 and a plastic-molded screen frame 8; preparing a tool plate 6, an aluminum template and a positioning plate 7 which have the same specification with the screen frame; bearing concave parts 61 which correspond to the convex columns 81 on the grid intersections of the screen frame and can contain ceramic particles are processed on the tool plate 6 and the aluminum template; a through hole 71 corresponding to the convex column 81 on the screen frame is processed on the positioning plate 7, the aperture of the through hole 71 is equivalent to the diameter of the convex column 81, and the screen frame 8 can be stably buckled on the positioning plate 7;
weaving, namely weaving ceramic particles on the tool disc 6 according to the design pattern, and placing the ceramic particles with the right side upwards in a bearing concave 61 of the tool disc; as shown in fig. 1, the ceramic grains with different colors or the ceramic grains with different sizes and shapes can be used for weaving pattern combinations, thereby enriching the products;
turning over the die, namely taking an aluminum die plate, reversely buckling the aluminum die plate on the tooling plate 6, turning over the aluminum die plate by 180 degrees, turning over the ceramic particles 9 and transferring the ceramic particles onto the aluminum die plate, wherein the bottoms of the ceramic particles 9 are upward;
preheating, namely feeding the aluminum template carrying the ceramic particles into an electric roller kiln for heating until the temperature reaches the melting temperature of the screen frame;
fourthly, mounting the screen frame, namely taking the positioning plate 7, inversely placing the screen frame 8 on the positioning plate, inserting the convex columns 81 on all the cross points into the through holes 71, keeping the screen frame 8 flatly attached to the surface of the positioning plate 7, and forming constraint on the flexible screen frame by means of the positioning plate 7 and having a boundary alignment reference; as shown in FIG. 2;
fifthly, hot-melt pressing, namely preparing a flat press, wherein the flat press comprises a needle plate 4, a stripper plate 5 and a tooling platform 3, the air cylinder 1 drives the flat press to lift, needle pricks corresponding to convex pillars on the screen frame are uniformly distributed on the needle plate 4, the center distance of adjacent needle pricks is equal to the center distance of adjacent convex pillars on the screen frame, the needle plate 4 is fixedly locked on the bottom surface of the back plate 2, and the needle pricks 41 face downwards; the stripper plate 5 is provided with needle holes 51 corresponding to the needle pricks and is tightly attached to the lower part of the needle plate 4, and the needle pricks 41 are kept to penetrate through the needle holes 51; the demoulding plate 5 is positioned by demoulding cylinders 52 at four corners and synchronously drives the opposite needle plate 4 to lift;
the process of entering the flat press comprises the following steps:
1. the positioning plate 7 with the screen frame is fed into the tool platform 3, pushed forwards and leans to one side, and abutted against a right-angle reference edge 31 arranged on the tool platform by virtue of a right-angle edge of the positioning plate 7 to be aligned; the needle plate 4 is driven by the cylinder 1 to descend, the needle pricks 41 on the needle plate are inserted into the forming holes 82 at the bottom of the convex columns of the net frame, the net frame 8 is taken away from the positioning plate 7 along with the lifted needle plate, and the positioning plate 7 is withdrawn, as shown in fig. 2 and 4;
2. pre-pressing, namely, sending the preheated aluminum template bearing the ceramic particles into the tooling platform 3, and aligning the aluminum template to a right-angle reference edge 31 of the tooling platform; the cylinder 1 drives the needle plate to descend for the second time, the convex columns 81 on the screen frame are pressed into the embedding holes 91 at the bottoms of the ceramic particles, hot melting is formed by means of heat of the ceramic particles 9, the prepressing time is 3-7 seconds, the pressure value is 4MPa, and the needle plate 4 is quickly lifted; at the moment, the net frame convex columns 81 are embedded into the embedding holes and the surface hot melting adsorption force is utilized to bring the net frame convex columns together with the ceramic particles 9 and separate the net frame convex columns from the aluminum template, the aluminum template is sent to preheating circulation or heat preservation treatment again to wait for next mold turnover and bear the ceramic particles;
3. maintaining the pressure, namely descending the needle plate 4 for the third time, pressing the ceramic particles 9 and the screen frame 8 on the tooling platform 3 together, keeping the pressure value not higher than 4M Pa for 20-35 seconds, and casting the hot-melt plastic to each corner of the embedding hole 91; fully extruding the preliminarily melted plastic of the convex column 81 into the embedding hole, and cooling and solidifying;
4. and (3) demoulding, wherein the cylinder 1 drives the needle plate 4 to move upwards, the demoulding cylinder 52 is started at the same time, the demoulding plate 5 is ejected out towards the end part of the acupuncture, so that the acupuncture is separated from the net frame 8, the compounded product is taken down, and the product is cooled at normal temperature to obtain a finished product. And finishing the whole man-machine matching and compounding process.
Claims (5)
1. A ceramic grain weaving composite process is characterized in that: the composite process comprises the following steps:
firstly, preparing materials, namely preparing a screen frame formed by ceramic particles and plastic; preparing a tooling plate, an aluminum template and a positioning plate which have the same specification with the screen frame; bearing concave parts which correspond to the grid cross point convex columns of the screen frame and can contain ceramic particles are processed on the tool plate and the aluminum template; the positioning plate is provided with through holes corresponding to the convex columns at the cross points of the grids of the screen frame, and the aperture of each through hole is equal to the diameter of each convex column;
weaving, namely weaving ceramic particles on the tool disc according to the design pattern, and placing the ceramic particles with the right side upwards in a bearing concave of the tool disc;
turning over the die, namely taking an aluminum die plate, reversely buckling the aluminum die plate on a tooling plate, turning over the aluminum die plate by 180 degrees, turning over and transferring the ceramic grains to the aluminum die plate, wherein the bottoms of the ceramic grains are upward;
preheating, namely feeding the aluminum template carrying the ceramic particles into an electric roller kiln for heating until the temperature reaches the melting temperature of the screen frame;
fourthly, mounting the screen frame, taking a positioning plate, putting the screen frame upside down on the positioning plate, inserting the convex columns on all the cross points into the through holes, keeping the screen frame to be flatly attached to the surface of the positioning plate, and forming constraint on the flexible screen frame by means of the positioning plate and having a boundary alignment reference;
fifthly, hot-melting pressing, namely preparing a flat press, wherein the flat press comprises a needle plate, a stripper plate and a tooling platform which are driven by a cylinder to lift, needle pricks corresponding to the convex pillars on the screen frame are uniformly distributed on the needle plate, and the center distance of adjacent needle pricks is equal to the center distance of adjacent convex pillars on the screen frame; the stripper plate is provided with needle holes corresponding to the needle pricks and is driven by the independent stripper cylinder to lift relative to the needle plate;
the process of entering the flat press comprises the following steps: the net frame is used for feeding the positioning plate with the net frame into a tool platform, pushing the positioning plate forwards and by one side, and abutting against a right-angle reference edge arranged on the tool platform by virtue of a right-angle edge of the positioning plate to align; the cylinder drives the needle plate to descend, the needle on the needle plate is inserted into the forming hole at the bottom of the convex column of the net frame, the net frame is taken away from the positioning plate along with the raised needle plate, and the needle plate is withdrawn from the positioning plate; secondly, prepressing, namely feeding the preheated aluminum template bearing the ceramic particles into a tooling platform, and aligning the aluminum template to a right-angle reference edge of the tooling platform; the cylinder drives the needle plate to descend for the second time, the convex columns on the screen frame are pressed into the embedding holes at the bottoms of the ceramic particles, hot melting is formed by means of heat of the ceramic particles, the prepressing time is 3-7 seconds, the pressure value is 4MPa, and the needle plate is quickly lifted; at the moment, the convex columns of the screen frame are embedded into the embedding holes and the surface of the convex columns is hot-melted and adsorbed, the convex columns and the ceramic particles are brought together and separated from the aluminum template, and the aluminum template is sent to preheating circulation or heat preservation treatment; maintaining the pressure, namely descending the needle plate for the third time, and pressing the ceramic particles and the screen frame on the tool platform together, wherein the pressure value is not higher than 4MPa and is kept for 20-35 seconds; fully extruding the preliminarily melted convex column plastic into the embedding hole, and cooling and solidifying; and fourthly, demolding, wherein the cylinder drives the needle plate to move upwards, the demolding cylinder is started simultaneously, the demolding plate is ejected out towards the end part of the needle prick, the needle prick is separated from the net frame, the compounded product is taken down, and the product is cooled at normal temperature to obtain a finished product.
2. The ceramic grain weaving composite process according to claim 1, characterized in that: the woven ceramic grains refer to color patterns of the woven ceramic grains, and the patterns are formed by hot-melting and fixing the ceramic grains with different colors at different positions of the screen frame.
3. The ceramic grain weaving composite process according to claim 1, characterized in that: the ceramic grains are woven in different sizes or shapes and arranged in different positions to form pattern combination.
4. The ceramic grain weaving composite process according to claim 1, 2 or 3, characterized in that: the main body of the net frame is of a rectangular structure, a half of convex columns are arranged on each of the four edges, connecting ribs extend outwards, and convex pins capable of being inserted into forming holes at the bottoms of the convex columns are formed at the ends of the connecting ribs; the bottom of the other half of the convex column is outwards formed with a groove for the connecting rib to be embedded in; the connecting ribs and the grooves on the four edges are rotationally and symmetrically distributed and can be mutually spliced with any screen frame with the same specification.
5. The ceramic grain weaving composite process according to claim 1, characterized in that: the tool plate, the aluminum template and the positioning plate as well as the needle plate and the stripper plate on the flat press are all correspondingly arranged by taking the screen frame as a standard.
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| CN201911209925.6A CN112873872B (en) | 2019-11-29 | 2019-11-29 | Ceramic grain weaving composite process |
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| CN201911209925.6A CN112873872B (en) | 2019-11-29 | 2019-11-29 | Ceramic grain weaving composite process |
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| CN112873872B true CN112873872B (en) | 2022-06-17 |
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| JPH03159732A (en) * | 1989-11-17 | 1991-07-09 | Achilles Corp | Sheet having particle laminated part and preparation thereof |
| CN100424308C (en) * | 2005-02-25 | 2008-10-08 | 蔡振宗 | Ceramic plastic composite decorative material and making technique thereof |
| FR2917099B1 (en) * | 2007-06-06 | 2010-03-19 | Ensait | METHOD FOR MANUFACTURING A COMPOSITE MATERIAL, IN PARTICULAR FOR BALLISTIC PROTECTION, AND COMPOSITE MATERIAL OBTAINED |
| CN201230745Y (en) * | 2008-07-11 | 2009-05-06 | 蔡振宗 | Ceramoplastic composite product |
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