CN110591264A - Acrylic plate, casting process and casting equipment thereof - Google Patents
Acrylic plate, casting process and casting equipment thereof Download PDFInfo
- Publication number
- CN110591264A CN110591264A CN201910904047.3A CN201910904047A CN110591264A CN 110591264 A CN110591264 A CN 110591264A CN 201910904047 A CN201910904047 A CN 201910904047A CN 110591264 A CN110591264 A CN 110591264A
- Authority
- CN
- China
- Prior art keywords
- plate
- parts
- clamping plate
- casting
- acrylic
- 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
Links
Classifications
-
- 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
- B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
- B29C39/02—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles
-
- 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
- B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
- B29C39/22—Component parts, details or accessories; Auxiliary operations
-
- 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
- B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
- B29C39/22—Component parts, details or accessories; Auxiliary operations
- B29C39/24—Feeding the material into the mould
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- C08L33/04—Homopolymers or copolymers of esters
- C08L33/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, which oxygen atoms are present only as part of the carboxyl radical
- C08L33/10—Homopolymers or copolymers of methacrylic acid esters
- C08L33/12—Homopolymers or copolymers of methyl methacrylate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2007/00—Flat articles, e.g. films or sheets
- B29L2007/002—Panels; Plates; Sheets
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0806—Silver
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
The invention provides an acrylic plate which comprises the following raw materials in parts by mass: 100 parts of PMMA (polymethyl methacrylate), 10-16 parts of PC (polycarbonate), 5-18 parts of organic silicon resin, 3-10 parts of polydimethylsiloxane, 1-5 parts of lubricant, 0.6-1.5 parts of flame retardant, 2-5 parts of nano zirconium phosphate silver-loaded antibacterial agent, 0.6-3 parts of anti-aging agent and 2-5 parts of nano calcium carbonate; a casting process of an acrylic plate comprises the following steps: step1, melting the raw materials at high temperature; step2, casting and forming; a casting device for an acrylic plate comprises a base, a support, a workbench, a driving device and a filling device; the filling device comprises a storage bin and a discharging mechanism; the storage bin is communicated with the discharging mechanism through a hose; unloading mechanism includes: the device comprises a base, a through hole and a limiting block; an upper clamping plate and a lower clamping plate are arranged between the limiting block and the base, and a spring is arranged between the upper clamping plate and the lower clamping plate; the lower clamping plate is provided with a first groove; the base is provided with a second groove.
Description
Technical Field
The invention relates to the technical field of acrylic plate process production, in particular to an acrylic plate, a casting process and casting equipment thereof.
Background
Acrylic is a high molecular compound polymerized from methyl methacrylate, is an important thermoplastic plastic which is developed earlier, and organic glass has the advantages of better transparency, chemical stability, mechanical property and weather resistance, easy dyeing, easy processing, beautiful appearance and the like.
Most of acrylic plates in the prior art have poor performance, and do not have the performances of oxidation resistance stability, weather resistance, insulating property, water resistance, mould resistance and the like.
The acrylic plate can be divided into a casting type plate and an extrusion type plate according to the production process, wherein the casting type plate is mainly used for manufacturing carving, decoration, handicraft products and the like, and the extrusion type plate is mainly used for manufacturing advertising signboards, lamp boxes and the like. The production process of the casting type plate mainly comprises the working procedures of raw material prepolymerization, vacuumizing, filling, foam rising, polymerization, high-temperature treatment, demolding and the like.
The application numbers are: 201811353683.3 discloses a production system of a casting type acrylic plate in the invention patent of 'a filling production system of organic glass and a use method thereof'; the filling device is improved aiming at the die and the filling device in the prior art, so that the phenomenon that a large amount of gas enters the die to influence the forming of the acrylic plate when the material is filled into the die is avoided; the prior art mold includes: the device comprises a lower glass plate, a sealing ring, an upper glass plate and a C-shaped clamp; the sealing ring is placed on the lower glass plate, the sealing ring is fixedly placed around the periphery of the lower glass plate, the upper glass plate is placed on the sealing ring, the upper glass plate and the lower glass plate are square organic glass plates with the same shape and size, the upper glass plate and the lower glass plate are placed in an overlapping mode, a cavity is formed by the space between the upper glass plate and the lower glass plate and surrounded by the sealing ring, the cavity is used for filling slurry, C-shaped clamps are arranged on three sides of the upper glass plate and the lower glass plate to be extruded and fixed to achieve a sealing effect, an opening is reserved on the other side of the upper glass plate and the lower glass plate, and an iron wire is wound on a; and the opening edge is pried open by the wedge-shaped organic glass during filling production, the slurry is filled into the cavity through the pried opening edge by an output belt of the filling device, the air in the cavity is completely discharged from the sealing section wound with the iron wire by extruding and exhausting the mold filled with the slurry, the iron wire is extracted, the C-shaped clamp is used for extruding and fixing the opening edge sealing mold, and the filling step is completed.
Although the invention patent improves the die, a large amount of air can not enter the die when the material is filled, the problem that the deviation of the output end in the invention can not be solved when the material is filled is solved, and the acrylic material still remains in the output end after the material is filled, if the output end is not cleaned or clamped and directly taken out, the acrylic material can flow out from the output end, the waste is caused, and the acrylic material can flow into the insertion port when the output end is pulled out, so that the sealing state can not be completely recovered.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a casting process production device of an acrylic plate.
The invention solves the technical problems through the following technical means:
an acrylic sheet, characterized in that: the composite material comprises the following raw materials in parts by mass: 100 parts of PMMA, 10-16 parts of PC, 5-18 parts of organic silicon resin, 3-10 parts of polydimethylsiloxane, 1-5 parts of lubricant, 0.6-1.5 parts of flame retardant, 2-5 parts of nano zirconium phosphate silver-loaded antibacterial agent, 0.6-3 parts of anti-aging agent and 2-5 parts of nano calcium carbonate.
As an improvement of the technical scheme, the lubricant is at least one of polyethylene glycol fatty acid ester, calcium stearate and zinc stearate.
As an improvement of the technical scheme, the method comprises the following steps:
step1. high temperature melting of raw materials
Firstly, putting PMMA, PC and organic silicon resin into a high-temperature kneading machine according to the mass fraction for heat treatment, and fully and uniformly mixing;
adding the raw materials such as polydimethylsiloxane, the lubricant, the flame retardant, the nano zirconium phosphate silver-loaded antibacterial agent, the anti-aging agent, the nano calcium carbonate and the like into a high-temperature kneading machine according to the mass fraction, melting at high temperature, and fully and uniformly mixing to obtain a molten mixed material;
step2. casting and forming
Placing the melted mixed material in casting equipment to obtain a plate-shaped molten mass;
and cooling and shaping the plate-shaped molten mass, demolding, and trimming to obtain the acrylic plate.
The utility model provides a casting equipment of inferior gram force board which characterized in that: comprises a base, a bracket, a workbench, a driving device and a filling device;
the base comprises a bottom plate and a side plate, and a first roller is arranged at the top end of the side plate;
the bracket is fixed on the bottom plate; the other end of the bracket, which is far away from the bottom plate, is provided with a workbench; the bracket is rotationally connected with the workbench;
the filling device comprises a storage bin and a discharging mechanism; the storage bin is communicated with the discharging mechanism through a hose; unloading mechanism includes: the hose conveying device comprises a base, wherein a through hole for allowing a hose to pass through is formed in the base, and a limiting block is arranged at a discharge port of the hose and used for preventing the hose from sliding out of the through hole; an upper clamping plate and a lower clamping plate are arranged between the limiting block and the base, the upper clamping plate is fixed on the base, the lower clamping plate is rotatably connected with the base, and a spring in a compressed state is arranged between the upper clamping plate and the lower clamping plate; the outer surfaces of the upper clamping plate and the lower clamping plate are arranged to be inclined plane structures; the outer surface of the lower clamping plate is provided with a first groove; and a second groove is formed in the same side of the base and the lower clamping plate.
As an improvement of the technical scheme, the limiting block is provided with a supporting block, and a gap is arranged between the supporting block and the hose.
As an improvement of the technical scheme, the outer surfaces of the upper clamping plate and the lower clamping plate are of arc-shaped inclined surface structures.
As an improvement of the above technical solution, the rolling direction of the first roller is the same as the moving direction of the mold.
As an improvement of the above technical solution, the work table includes: a support frame; the supporting frame is provided with a lower fixing plate and an upper fixing plate, the lower fixing plate is fixedly connected with the supporting frame, and the upper fixing plate is connected with the supporting frame in a sliding manner and slides up and down along the supporting frame; a working cavity is formed between the lower fixing plate and the upper fixing plate and used for containing a die, a limiting mechanism is arranged at one end of the die sliding-out working cavity of the lower fixing plate and used for limiting the die to move in the working cavity.
As an improvement of the technical scheme, the lower fixing plate is provided with a plurality of second rollers.
As an improvement of the above technical solution, the method further comprises: an exhaust device; the exhaust device is provided with an exhaust hood.
The invention has the beneficial effects that:
1. the invention obviously improves the antibacterial property, the aging resistance, the flame retardant property, the thermal oxidation stability, the durability and the hardness of the acrylic plate, thereby improving the quality and prolonging the service life of the acrylic plate;
2. the first roller and the second roller are arranged, so that the die can conveniently enter the working cavity and move in the working cavity;
3. the storage bin and the blanking mechanism are connected through the hose, so that the device can be suitable for processing and molding moulds with different sizes in the device;
4. the limiting block is arranged to prevent the hose from sliding out of the through hole to cause the separation of the blanking mechanism and the hose, and the hose is driven to slide downwards to a deeper position in the die after the front end of the blanking mechanism is inserted into the die by utilizing the self gravity, so that the flowing distance of the acrylic material is reduced during blanking, and the phenomenon that the large impact force is generated during blanking due to long-distance sliding to generate bubbles in the acrylic material is avoided;
5. the second groove is formed, so that when the blanking mechanism is inserted into the mold, the sealing ring is clamped in the second groove, and the situation that the blanking mechanism is shifted and even falls out of the mold easily due to shaking when the blanking mechanism is filled into the mold can be prevented, and the filling is influenced;
6. set up first recess and make when irritating the material and accomplish, unloading mechanism 5 retreats the sealing washer card that makes the mould in first recess, make lower pinch-off blades rotate under the effect of the elastic restoring force of sealing washer self elastic restoring force and the glass board of mould, it is tight with the hose clamp with last pinch-off blades effect, pull the hose outward to the mould again, make the residual material of inferior gram force in the hose extrude the hose, it is not enough to avoid this part residual material to lead to the inferior gram force material weight in the mould, and remaining inferior gram force material is difficult for preserving in the hose after taking out unloading mechanism, reveal easily and cause pollution and waste.
Drawings
FIG. 1 is a schematic structural view of a mold entering a casting device according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a casting apparatus according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of the mold of the embodiment of the invention when taken out of the casting device;
FIG. 4 is a schematic structural diagram of a blanking mechanism according to an embodiment of the present invention;
FIG. 5 is a schematic cross-sectional structure diagram of the blanking mechanism according to the embodiment of the present invention;
FIG. 6 is a schematic view of the cross-sectional structure A-A of FIG. 5;
the glass plate comprises a glass plate 1, a sealing ring 2, a base 100, a bottom plate 110, a side plate 120, a first roller 121, a support 200, a workbench 300, a support frame 310, a lower fixing plate 320, an upper fixing plate 330, a working cavity 340, a limiting mechanism 350, a travel switch 351, a limiting plate 352, a second roller 360, a driving device 400, a filling device 500, a storage bin 510, a blanking mechanism 520, a base 521, a through hole 522, an upper clamping plate 523, a lower clamping plate 524, a first groove 525, a second groove 526, a first stop 527, a second stop 528, a spring 529, a hose 530, a limiting block 531, a supporting block 532 and an exhaust hood 610.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
Examples
This embodiment an inferior gram force board, its characterized in that: the composite material comprises the following raw materials in parts by mass: 100 parts of PMMA, 10-16 parts of PC, 5-18 parts of organic silicon resin, 3-10 parts of polydimethylsiloxane, 1-5 parts of lubricant, 0.6-1.5 parts of flame retardant, 2-5 parts of nano zirconium phosphate silver-loaded antibacterial agent, 0.6-3 parts of anti-aging agent and 2-5 parts of nano calcium carbonate.
Polycarbonate PC is colorless and transparent, heat-resistant, impact-resistant, oxidation-resistant, flame-retardant for BI grade, good in processability, has UL 94V-2 grade flame-retardant performance without additives, and has good mechanical properties at ordinary use temperature. PC is added to improve the flame retardance, the oxidation resistance and the shock resistance of the acrylic plate.
The organic silicon resin has the characteristics of excellent thermal oxidation stability, electric insulation performance, weather resistance, water resistance, salt mist resistance, mold resistance, biocompatibility and the like. Organic silicon resin is added to obviously improve the thermal oxidation stability, weather resistance, insulating property, water resistance and mould resistance of the acrylic plate.
The polydimethylsiloxane is a hydrophobic organic silicon material, has high transparency, heat resistance, cold resistance, small viscosity change along with temperature, water resistance, small surface tension, thermal conductivity coefficient of 0.134-0.159W/M & ltK & gt, light transmittance of 100 percent, no toxicity and odor, physiological inertia, good chemical stability, good electrical insulation, weather resistance and hydrophobicity, high shear resistance, can be used for a long time at the temperature of-50-200 ℃, has excellent physical characteristics, can be directly used for damp-proof insulation, damping, shock absorption, defoaming, lubrication, polishing and other aspects, and can be widely used as insulation lubrication, shock resistance, oil dust resistance, dielectric fluid and heat carrier, and can be used as additives of defoaming, mold release agent, paint and daily chemicals.
The nano silver-carried zirconium phosphate antibacterial agent is a silver-series inorganic antibacterial agent using zirconium phosphate as a carrier. The inorganic antibacterial agent is prepared by using layered zirconium phosphate as a carrier, using various metal ions such as silver, zinc and the like as antibacterial ions and various auxiliary agents, and has the characteristics of high safety, good heat resistance and good chemical stability. The nano zirconium phosphate silver-carrying antibacterial agent is added to improve the antibacterial action of the acrylic plate, and various bacteria are efficiently and broadly killed and removed, so that the quality of the acrylic plate is improved, and the service life of the acrylic plate is prolonged.
The nano calcium carbonate has the functions of filling, reinforcing and toughening, shows good electrical insulation when applied to the acrylic plate, can effectively improve the toughness, the bending strength, the bending elastic modulus, the thermal deformation temperature and the electrical insulation performance of the acrylic plate, improves the processability, improves the rheological property, the size stability, the heat resistance stability and the hardness of the acrylic plate, and reduces the cost.
The lubricant is at least one of polyethylene glycol fatty acid ester, calcium stearate and zinc stearate.
The polyethylene glycol fatty acid ester has excellent lubricity, moisture retention, nonvolatility, dispersibility, adhesiveness, antistatic property, flexibility and the like.
Calcium stearate or zinc stearate is added to be used as a lubricant, a mold release agent, or the like.
Example 2
A casting process of an acrylic plate comprises the following steps:
step1. high temperature melting of raw materials
Firstly, putting PMMA, PC and organic silicon resin into a high-temperature kneading machine according to the mass fraction for heat treatment, and fully and uniformly mixing;
adding the raw materials such as polydimethylsiloxane, the lubricant, the flame retardant, the nano zirconium phosphate silver-loaded antibacterial agent, the anti-aging agent, the nano calcium carbonate and the like into a high-temperature kneading machine according to the mass fraction, melting at high temperature, and fully and uniformly mixing to obtain a molten mixed material;
step2. casting and forming
Placing the melted mixed material in a casting machine to obtain a plate-shaped molten body;
and cooling and shaping the plate-shaped molten mass, demolding, and trimming to obtain the acrylic plate.
Example 3
An apparatus for casting an acrylic sheet, comprising: a base 100, a support 200, a workbench 300, a driving device 400 and a filling device 500;
the base 100 comprises a bottom plate 110 and a side plate 120, and a first roller 121 is arranged at the top end of the side plate 120;
the bracket 200 is fixed on the bottom plate 110; the other end of the bracket 200 far away from the bottom plate 110 is provided with a workbench 300; the bracket 200 is rotatably connected with the workbench 300;
the filling device 500 comprises a storage bin 510 and a discharging mechanism 520; the storage bin 510 is communicated with the blanking mechanism 520 through a hose 530; the discharging mechanism 520 includes: a through hole 522 for the hose 530 to pass through is arranged in the base 521, a limiting block 531 is arranged at a discharge port of the hose 530, and the limiting block 531 is used for preventing the hose 530 from sliding out of the through hole 522; an upper clamping plate 523 and a lower clamping plate 524 are arranged between the limiting block 531 and the base 521, the upper clamping plate 523 is fixed on the base 521, the lower clamping plate 524 is rotatably connected with the base 521, and a spring 529 in a compressed state is arranged between the upper clamping plate 523 and the lower clamping plate 524; the outer surfaces of the upper clamping plate 523 and the lower clamping plate 524 are provided with inclined surface structures; the outer surface of the lower clamping plate 524 is provided with a first groove 525; the base 521 is provided with a second groove 526 on the same side as the lower clamping plate 524.
After three sides of the mold are fixed by a C-shaped clamp in the previous process, the mold moves to the workbench 300, and the top end of the side plate 120 is provided with a first roller 121, so that the mold can move conveniently, and the mold and the side plate 120 are prevented from being scratched to damage the surface of the glass plate 1 of the mold; after the mold is placed on the workbench 300, the workbench 300 is rotated to enable the mold to be inclined, so that the mold is convenient to fill materials into the mold; the storage bin 510 is used for storing acrylic materials, in the prior art, the storage bin 510 is generally used for quantitative blanking, the hose 530 is connected with the blanking mechanism 520 for blanking, moulds with different sizes can be used for producing acrylic plates with different sizes in actual production, and the hose 530 is connected with the blanking mechanism 520 so as to adjust the position of the blanking mechanism 520 to adapt to moulds with different sizes; the outer surfaces of the upper clamping plate 523 and the lower clamping plate 524 at the front end of the blanking mechanism 520 are set to be inclined structures, so that the front end of the blanking mechanism 520 is inserted into a mold; the limiting block 531 has two functions, one of which is to prevent the hose 530 from slipping out of the through hole 522 to cause the separation of the blanking mechanism 520 and the hose 530, and the other is to utilize self gravity to drive the hose to slide down to a deeper position in the mold after the front end of the blanking mechanism 520 is inserted into the mold, so as to reduce the flow distance of the acrylic material during blanking, thereby avoiding the large impact force generated during blanking due to long-distance sliding down, and generating bubbles inside the acrylic material; the hose 530 is pulled when the material in the mold rises, so that the phenomenon that the limiting block 531 enters the acrylic material to cause the adhesion of a large amount of acrylic material on the surface of the limiting block 531, waste is caused, and the sealing ring 2 of the mold is polluted when the material is filled and the limiting block 531 is taken out, so that the sealing performance of the mold is influenced is avoided; the same side of the base 521 and the lower clamping plate 524 is provided with a second groove 526, so that when the blanking mechanism 520 is inserted into the mold, the sealing ring 2 is clamped in the second groove 526, and the blanking mechanism 520 can be prevented from shaking when the blanking mechanism 520 is filled into the mold, so that the blanking mechanism 520 is easily deviated and even falls out of the mold, and the filling is affected; the outer surface of the lower clamping plate 524 is provided with a first groove 525, so that when the material filling is completed, the blanking mechanism 520 retreats to enable the sealing ring 2 of the mold to be clamped in the first groove 525, the lower clamping plate 524 rotates under the action of the elastic restoring force of the sealing ring and the elastic restoring force of the glass plate 1 of the mold, the lower clamping plate and the upper clamping plate 523 act to clamp the hose 530, and the hose 530 is pulled outwards of the mold, so that the acrylic residual material in the hose 530 is extruded out of the hose 530, and therefore, the situation that the weight of the acrylic material in the mold is insufficient due to the residual material is avoided, and the residual acrylic material is not easy to store in the hose 530 after the blanking mechanism 520 is taken out, and is easy to leak to; the spring 529 in a compressed state is arranged between the upper clamping plate 523 and the lower clamping plate 524, so that the sealing ring 2 is clamped in the second groove 526, and when the upper clamping plate 523 and the lower clamping plate 524 enter the mold, the space between the upper clamping plate 523 and the lower clamping plate 524 can be opened, so that acrylic materials can conveniently flow through and be discharged from the hose.
The rotating part of the lower clamping plate 524 is provided with a first stop block 527, the base 521 is provided with a second stop block 528 which is matched with the first stop block 527 for use, so that the rotating range of the lower clamping plate 524 is limited, and the limiting block 531 is prevented from entering between the upper clamping plate 523 and the lower clamping plate 524 to influence the normal use of the blanking mechanism 520.
The limiting block 531 is provided with a supporting block 532, and a gap is formed between the supporting block 532 and the hose 530; after the material filling is completed, the limiting block 531 is tightly attached to the upper clamping plate 523 and the lower clamping plate 524, when the blanking mechanism 520 is pulled out until the sealing ring 2 is clamped in the first groove 525, the lower clamping plate 524 clamps the hose 530, the joint between the hose 530 and the limiting block 531 is easily torn, and the service life of the hose is shortened.
The outer surfaces of the upper clamping plate 523 and the lower clamping plate 524 are arranged to be arc-shaped inclined surface structures; the arcuate surfaces make the blanking mechanism 520 easier when just inserted into the mold.
The rolling direction of the first roller 121 is the same as the moving direction of the mold; the universal roller is not used, and the rolling direction of the first roller 121 is the same as the moving direction of the mold, so that the mold is prevented from shifting when sliding to the workbench 300.
The work stage 300 includes: a support frame 310; a lower fixing plate 320 and an upper fixing plate 330 are arranged on the support frame 310, the lower fixing plate 320 is fixedly connected with the support frame 310, and the upper fixing plate 330 is slidably connected with the support frame 310 and slides up and down along the support frame 310; a working cavity 340 is arranged between the lower fixing plate 320 and the upper fixing plate 330, the working cavity 340 is used for placing a mold, a limiting mechanism 350 is arranged at one end, sliding out of the working cavity 340, of the lower fixing plate 320, and the limiting mechanism 350 is used for limiting the mold to move in the working cavity 340.
The lower fixing plate 320 and the upper fixing plate 330 are used for limiting the mold in the workbench 300 and preventing the mold from falling down when the workbench inclines, the supporting frame 310 is used for supporting the upper fixing plate 330, and the upper fixing plate 330 is slidably connected with the supporting frame 310, so that the workbench 300 can prevent molds with different thicknesses, and the adaptability is stronger; the limiting mechanism 350 limits the mold and prevents the mold from falling off the worktable 300 after the worktable rotates and inclines.
The limiting mechanism 350 comprises a travel switch 351 and a limiting plate 352; the travel switch 351 is arranged on the lower fixing plate 320, and the limit plate 352 is arranged at one end of the lower fixing plate 320, which is close to the mold outlet working cavity 340, and is rotatably connected with the lower fixing plate 320; the travel switch 351 is protruded out of the surface of the lower fixing plate 320 under normal conditions, when the die enters the working cavity 340, the die presses the travel switch 351 to trigger the limit plate 352 to rotate, and the limit plate rotates from being parallel to the lower fixing plate 320 to being vertical to the surface of the lower fixing plate 320, so that the die is prevented from sliding towards the outlet direction; after the material is poured and the workbench is rotated to the horizontal position, the lower limiting plate 352 is manually pulled, the mold slides out of the working cavity 340, and the next working procedure is carried out.
The lower fixing plate 320 is provided with a plurality of second rollers 360; facilitating the sliding of the mold within the platen 300; facilitating mold access to the working chamber 340.
The casting equipment of the acrylic plate further comprises: an exhaust device; the exhaust device is provided with an exhaust hood 610; after the workbench 300 rotates to the position, the blanking mechanism 520 is inserted into the die, and the exhaust hood 610 is arranged right above the insertion hole; harmful gas generated during material filling can be sucked away, and the influence on the health of workers operating near the insertion opening is prevented.
It is noted that, in this document, relational terms such as first and second, and the like, if any, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. An acrylic sheet, characterized in that: the composite material comprises the following raw materials in parts by mass: 100 parts of PMMA, 10-16 parts of PC, 5-18 parts of organic silicon resin, 3-10 parts of polydimethylsiloxane, 1-5 parts of lubricant, 0.6-1.5 parts of flame retardant, 2-5 parts of nano zirconium phosphate silver-loaded antibacterial agent, 0.6-3 parts of anti-aging agent and 2-5 parts of nano calcium carbonate.
2. An acrylic sheet as claimed in claim 1, wherein: the lubricant is at least one of polyethylene glycol fatty acid ester, calcium stearate and zinc stearate.
3. A casting process comprising an acrylic sheet according to claim 1 or 2, characterized in that it comprises the following steps:
step1. high temperature melting of raw materials
Firstly, putting PMMA, PC and organic silicon resin into a high-temperature kneader according to the mass fraction in claim 1 for heat treatment, and fully and uniformly mixing;
adding the raw materials such as polydimethylsiloxane, a lubricant, a flame retardant, a nano zirconium phosphate silver-loaded antibacterial agent, an anti-aging agent, nano calcium carbonate and the like into a high-temperature kneader according to the mass fraction in claim 1, melting at high temperature, and fully and uniformly mixing to obtain a molten mixed material;
step2. casting and forming
Placing the melted mixed material in casting equipment to obtain a plate-shaped molten mass;
and cooling and shaping the plate-shaped molten mass, demolding, and trimming to obtain the acrylic plate.
4. A casting apparatus comprising an acrylic plate as claimed in claim 3, wherein: comprises a base (100), a bracket (200), a workbench (300), a driving device (400) and a filling device (500);
the base (100) comprises a bottom plate (110) and a side plate (120), and a first roller (121) is arranged at the top end of the side plate (120);
the bracket (200) is fixed on the bottom plate (110); the other end of the bracket (200) far away from the bottom plate (110) is provided with a workbench (300); the bracket (200) is rotationally connected with the workbench (300);
the filling device (500) comprises a storage bin (510) and a blanking mechanism (520); the storage bin (510) is communicated with the blanking mechanism (520) through a hose (530); the blanking mechanism (520) includes: the hose fixing device comprises a base (521), wherein a through hole (522) for allowing a hose (530) to pass through is formed in the base (521), a limiting block (531) is arranged at a discharge port of the hose (530), and the limiting block (531) is used for preventing the hose (530) from sliding out of the through hole (522); an upper clamping plate (523) and a lower clamping plate (524) are arranged between the limiting block (531) and the base (521), the upper clamping plate (523) is fixed on the base (521), the lower clamping plate (524) is rotatably connected with the base (521), and a spring (525) in a compressed state is arranged between the upper clamping plate (523) and the lower clamping plate (524); the outer surfaces of the upper clamping plate (523) and the lower clamping plate (524) are arranged to be inclined surface structures; the outer surface of the lower clamping plate (524) is provided with a first groove (525); the base (521) is provided with a second groove (526) on the same side as the lower clamping plate (524).
5. The apparatus for casting an acrylic plate according to claim 4, wherein: the limiting block (531) is provided with a supporting block (532), and a gap is formed between the supporting block (532) and the hose (530).
6. The apparatus for casting an acrylic plate according to claim 5, wherein: the outer surfaces of the upper clamping plate (523) and the lower clamping plate (524) are arranged to be arc-shaped inclined surface structures.
7. The apparatus for casting an acrylic plate according to claim 6, wherein: the rolling direction of the first roller (121) is the same as the moving direction of the die.
8. The apparatus for casting an acrylic plate according to claim 7, wherein: the work table (300) comprises: a support frame (310); a lower fixing plate (320) and an upper fixing plate (330) are arranged on the support frame (310), the lower fixing plate (320) is fixedly connected with the support frame (310), and the upper fixing plate (330) is slidably connected with the support frame (310) and slides up and down along the support frame (310); set up to working chamber (340) between bottom plate (320) and upper fixed plate (330), working chamber (340) are used for placing the mould, bottom plate (320) are provided with stop gear (350) in mould roll-off working chamber (340) one end, stop gear (350) are used for restricting the mould and move in working chamber (340).
9. The apparatus for casting an acrylic plate according to claim 8, wherein: the lower fixing plate (320) is provided with a plurality of second rollers (360).
10. The apparatus for casting an acrylic plate as claimed in claim 9, wherein: further comprising: an exhaust device; the exhaust device is provided with an exhaust hood (610).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910904047.3A CN110591264A (en) | 2019-09-24 | 2019-09-24 | Acrylic plate, casting process and casting equipment thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910904047.3A CN110591264A (en) | 2019-09-24 | 2019-09-24 | Acrylic plate, casting process and casting equipment thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110591264A true CN110591264A (en) | 2019-12-20 |
Family
ID=68863074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910904047.3A Pending CN110591264A (en) | 2019-09-24 | 2019-09-24 | Acrylic plate, casting process and casting equipment thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110591264A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112428642A (en) * | 2020-11-26 | 2021-03-02 | 瑞昌荣联环保科技有限公司 | Acrylic bubble plate |
| CN116768685A (en) * | 2023-06-09 | 2023-09-19 | 西安近代化学研究所 | Flow stopping method for casting liquid of granule casting propellant |
-
2019
- 2019-09-24 CN CN201910904047.3A patent/CN110591264A/en active Pending
Non-Patent Citations (1)
| Title |
|---|
| 张广成等: "《塑料成型加工技术》", 上海科学技术文献出版社, pages: 218 - 219 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112428642A (en) * | 2020-11-26 | 2021-03-02 | 瑞昌荣联环保科技有限公司 | Acrylic bubble plate |
| CN116768685A (en) * | 2023-06-09 | 2023-09-19 | 西安近代化学研究所 | Flow stopping method for casting liquid of granule casting propellant |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110591264A (en) | Acrylic plate, casting process and casting equipment thereof | |
| CN102675807A (en) | Thermoplastic elastomer material for refrigerator sealing strip and preparation method thereof | |
| CN211057013U (en) | Casting equipment for acrylic plate | |
| CN212979220U (en) | Full-automatic positive-pressure integrated plastic sucking machine | |
| CN112721101A (en) | Extrusion molding process for rubber products | |
| CN211591227U (en) | Extrusion molding equipment for foaming composite board | |
| CN117087111A (en) | Injection molding machine for rapidly molding household appliance plastic parts | |
| CN202702606U (en) | Resin template molding equipment | |
| CN215151728U (en) | Single-station blow molding barrel hollow forming processing device | |
| CN215203237U (en) | Plastic mold with top clamping and demolding mechanism | |
| CN215472858U (en) | Automatic discharge device of injection molding machine | |
| KR102146406B1 (en) | Producing method for extrusion products | |
| CN210501108U (en) | Fixed rail injection molding device for plastic product production | |
| CN113733426A (en) | Processing equipment for molded customized resin tile | |
| CN210651736U (en) | Extruding machine with automatic production capacity | |
| CN210590399U (en) | Injection mold capable of being rapidly processed | |
| CN111391434A (en) | Double-layer co-extruded aluminum-wood-plastic profile and preparation method thereof | |
| CN210501363U (en) | Movable bottle blowing mold opening and closing device | |
| CN217891821U (en) | Refill blow molding equipment that leakproofness is high | |
| CN110744828B (en) | Production process of car repairing lying plate | |
| CN220331752U (en) | Cooling system for polyethylene board molding | |
| CN218429898U (en) | Bottle blank cooling and blowing device for plastic container | |
| CN219600239U (en) | Injection mold of air conditioner air outlet plectrum | |
| CN215151440U (en) | Mould is used in processing of data line head that charges | |
| CN211843145U (en) | Hollow blow molding machine for urea barrel production |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |