CN109318443A - A kind of dual density is disposably injection moulded rubber and plastic pallet and its production technology - Google Patents
A kind of dual density is disposably injection moulded rubber and plastic pallet and its production technology Download PDFInfo
- Publication number
- CN109318443A CN109318443A CN201811329145.0A CN201811329145A CN109318443A CN 109318443 A CN109318443 A CN 109318443A CN 201811329145 A CN201811329145 A CN 201811329145A CN 109318443 A CN109318443 A CN 109318443A
- Authority
- CN
- China
- Prior art keywords
- injection
- density
- mold
- rubber
- mold half
- 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.)
- Withdrawn
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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/76—Cores
-
- 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
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/04—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam
- B29C35/045—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam using gas or flames
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/16—Making multilayered or multicoloured articles
- B29C45/1615—The materials being injected at different moulding stations
- B29C45/162—The materials being injected at different moulding stations using means, e.g. mould parts, for transferring an injected part between moulding stations
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/16—Making multilayered or multicoloured articles
- B29C45/1615—The materials being injected at different moulding stations
- B29C45/1628—The materials being injected at different moulding stations using a mould carrier rotatable about an axis perpendicular to the opening and closing axis of the moulding stations
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/2602—Mould construction elements
- B29C45/2606—Guiding or centering means
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/2681—Moulds with rotatable mould parts
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/34—Moulds having venting means
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/64—Mould opening, closing or clamping devices
- B29C45/67—Mould opening, closing or clamping devices hydraulic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D19/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
- B65D19/0004—Rigid pallets without side walls
- B65D19/0006—Rigid pallets without side walls the load supporting surface being made of a single element
- B65D19/0008—Rigid pallets without side walls the load supporting surface being made of a single element forming a continuous plane contact surface
- B65D19/001—Rigid pallets without side walls the load supporting surface being made of a single element forming a continuous plane contact surface the base surface being made of a single element
- B65D19/0012—Rigid pallets without side walls the load supporting surface being made of a single element forming a continuous plane contact surface the base surface being made of a single element forming a continuous plane contact surface
-
- 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
- B29L2031/00—Other particular articles
- B29L2031/712—Containers; Packaging elements or accessories, Packages
- B29L2031/7178—Pallets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
- B65D2519/00004—Details relating to pallets
- B65D2519/00009—Materials
- B65D2519/00014—Materials for the load supporting surface
- B65D2519/00034—Plastic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
- B65D2519/00004—Details relating to pallets
- B65D2519/00258—Overall construction
- B65D2519/00263—Overall construction of the pallet
- B65D2519/00268—Overall construction of the pallet made of one piece
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Thermal Sciences (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a kind of dual densities to be disposably injection moulded rubber and plastic pallet and its production technology, belongs to rubber and plastic pallet product technique field.Dual density of the invention is disposably injection moulded rubber and plastic pallet, including the latticed high density supporting layer of upper layer and lower layer and low-density resilient middle layer, low-density resilient middle layer is the barrier cavity of hollow grid, and is separated by partition and divides cavity for equally distributed pallet；The inner wall of high density supporting layer is connected with partition in a monolithic construction, can integrated injection forming；The material of partition is the low-density rubber that density is less than high density supporting layer, plays the role of elastic shock attenuation, and stability is good, and intensity is high, and light-weight, corresponding high density supporting layer is high density rubber, plays bearing goods.It solves and poor rubber and plastic pallet damping effect, the injection of dual density pallet and vulcanization separately progress, energy consumption, time-consuming, problem at high cost exists in the prior art.
Description
Technical field
The invention belongs to rubber and plastic pallet product technique fields, are disposably injection moulded specifically, being related to a kind of dual density
Rubber and plastic pallet and its production technology.
Background technique
Chinese national standard " logistics terms " is to the definition of pallet (pallet): being used for packaging, stacking, carrying and transport
Place as the cargo of unit load and the levelling bench arrangement of product.As a kind of unit load devices similar with container,
Pallet has been widely used in the fields such as production, transport, storage and circulation.
Pallet generally has a foot or beam below upper flat plate and upper flat plate, some pallets there are also lower plate be connected to foot or
The lower section of person's beam.According to the shape of pallet, plane and grid type can be divided into according to the shape of plate；According to the number of plate
It is divided into single deck pallet and double-deck pallet；It is divided into nine footrest disks, river word pallet and field word pallet according to using foot or beam.Institute
Pallet pattern abundant, such as nine foot single deck pallet of network, nine foot single side of plane are formed after permutation and combination with above-mentioned pattern
Pallet, grid river word single deck pallet ... etc., have different moulder moistures in different occasions.
The plastics system or rubbery system of the existing general identical material of style type pallet, although two kinds of systems are all answered extensively
With, but all have the shortcomings that corresponding:
The plastic material price of the first system is high, and chance high temperature easily softens and wearability is poor；The molding side of plastic pallet
Formula mainly has injection molding method, extrusion-hollow blow molding method, vacuum suction moulding method.These modes are by pallet integration
Molding, processing cost are relatively high.Therefore occur built-up pallet in recent years, plate and foot or beam are processed respectively, then
It is assembled.Whether this mode significantly reduces cost, but assemble secured, and the convenience of assembling, is to need to examine
The problem of worry.
In second of system, the molding and vulcanization of rubber and plastic pallet, which will separate, to be carried out, although material cost is relatively low, work
Skill higher cost, moreover, if there is hole in inside, sulfidation is difficult to ensure entire semi-finished product vulcanization uniformly in sulfidation,
Finished product dynamic balancing effect is poor, and after vulcanization, intrapore high pressure gas is also easy to rapid expanding in die sinking and explodes, and causes hole
Gap thin-walled ruptures and becomes waste product, and in technical process, rejection rate is higher；It should also be noted that, vulcanization is in dedicated vulcanization machine
It carries out, need to pressurize again, heat to rubber product, consume energy, is time-consuming, at high cost, being a big disadvantage of rubber product technique.
Moreover, all there is damping effect difference in two kinds of systems, and for being easy during out of stock or rotation cargo, mistake
Hard contact is easy to produce causes cargo to damage because of damping effect difference.
Solving problem above can be considered dual density system, because of the size of rubber density itself, with it containing gas bubble (hair
Bubble) it is related, by gas foaming, the rubber material of different densities is obtained, to reach dual-density rubber product, generally uses two
Injection mechanism is covered, not only increases equipment cost, but also increase occupation area of equipment.
Through retrieving, Chinese patent publication No. CN 102952317 B, publication date 2018.04.06, denomination of invention: Yi Zhongmu
Composite pallet is moulded, is made from the following raw materials in parts by weight: high density polyethylene (HDPE) 50-60, copolymerized type propene polymer 20-30, modification
Wood powder 30-40, recycled plastics polymers 40-50, calcium activated 20-30, zinc stearate 1-2, calcium stearate 1-2, the positive fourth of methacrylic acid
Ester 2-3, polyethylene wax 0.3-0.5, vinyltriethoxysilane 0.4-0.6, antioxidant 1010 0.3-0.4, anti-aging agent
MB0.4-0.6, foaming control agent 8-10, ACM4-8, MBS4-8, oxidized polyethylene wax 25-30, foaming agent 0.2-0.3, TPE4-
8, chliorinated polyvinyl chloride 8-12, glass fibre 5-8, semi-reinforcing hydrocarbon black 3-4.The invention limits technique from formula and process conditions
Process, using traditional process equipment, production Plastic-wooden composite tray, injection and vulcanization are separately carried out, and consume energy, is time-consuming, at high cost.
Summary of the invention
1. technical problems to be solved by the inivention
Poor rubber and plastic pallet damping effect, the injection of dual density pallet and vulcanization separately progress exists in the prior art to overcome,
Energy consumption, time-consuming, problem at high cost, the present invention provide a kind of dual density and are disposably injection moulded rubber and plastic pallet and its production work
Skill.Dual density rubber and plastic tray design of the invention is at dual density hollow structure, high density supporting layer bearing goods, low-density elasticity
Middle layer is provided with multilayer longitudinal cavity partition, plays damping effect；Its make in, by double-density injection molding, it is hollow and
Vulcanization plant is integrated, reduces cost, the molding time of pallet product, and reduces energy consumption, moreover it is possible to eliminate pallet
Shipping expense between article process.
2. technical solution
To solve the above problems, the present invention adopts the following technical scheme:
A kind of dual density is disposably injection moulded rubber and plastic pallet, including the latticed high density supporting layer of upper layer and lower layer and low
Density elastic middle layer, low-density resilient middle layer are the barrier cavity of hollow grid, and are separated by partition to be uniformly distributed
Pallet divide cavity；The inner wall of high density supporting layer is connected with partition in a monolithic construction, can integrated injection forming；Every
The material of plate is the low-density rubber that density is less than high density supporting layer, plays the role of elastic shock attenuation, and stability is good, by force
Degree is high, and light-weight, corresponding high density supporting layer is high density rubber, plays bearing goods.
Further embodiment, partial tray divide cavity to be connected to form pallet loss of weight cavity, to mitigate overall weight, improve machine
Dynamic property, pallet loss of weight cavity symmetrical distribution between bilevel high density supporting layer, to improve stability；Partition and height
Density supporting layer is the integral structure with mold depanning；Pass through composite rubber-plastic material application double-density injection forming production system
One-step method completes dual-density rubber material injection, hollow and sulfuration process is made, and dual density rubber and plastic pallet is completed in a mold
Injection, it is hollow and vulcanization, avoid product in the circulation of each process, to reduce production cost.
Further embodiment, double-density injection forming production system include injection machine base and pressing mold vulcanization pedestal and divide
The injection device and pressing mold vulcanization plant not being fixed in the two further include the hollow devices of pressing mold vulcanization pedestal side, pressing mold
Vulcanization plant includes two mold cores, and injection device corresponds to two kinds of different plasticized rubber material of density in different molds
Core is successively injected into the mold of pressing mold vulcanization plant, and high pressure gas is passed through in the mold of pressing mold vulcanization plant by hollow devices
High pressure gas hollow cavity is formed after mold core two is removed in plasticized rubber material, pressing mold vulcanization plant is to the plasticized rubber in mold
Material carries out pressing mold and vulcanization.
Further embodiment, the injection device in double-density injection forming production system includes loading hopper, injection cylinder, modeling
Change injection barrel, injection seat Shift cylinder, pre-firing material-holding chamber, continuous frothing machine, material switching oil cylinder, injection head and material switching
Conversion valve；Loading hopper is communicated with the beginning of plasticizing injection barrel, and the cylinder barrel that plasticizing injection barrel is fixed on injection cylinder stops side；
The discharge port of plasticizing injection barrel and continuous frothing machine passes through feed pipe one respectively and feed pipe two is communicated with pre-firing material-holding chamber, object
Material switching conversion valve controls the alternation switch of feed pipe one and feed pipe two after connecting with the piston rod of material switching oil cylinder, with
Switch the injection of different densities sizing material；Plasticizing injection barrel, continuous frothing machine and material switching oil cylinder are both secured to pre-firing and hold material
Chamber top, in the injection ram insertion pre-firing material-holding chamber in injection cylinder, injection head, injection head is arranged in the front end of pre-firing material-holding chamber
The mould gate of face pressing mold vulcanization plant；The bottom of pre-firing material-holding chamber passes through the piston rod of fixed plate and injection seat Shift cylinder
It is fixedly connected；Injection seat Shift cylinder is fixed on injection machine base；The outer wall of plasticizing injection barrel is coated with plasticizing heater,
For being plasticized high density sizing material；Pressing mold vulcanization plant includes die cylinder, upper mold half, lower mold half, mold core one, mold
Inner core two and mold core rotational fuel tank；Lower mold half is fixed on pressing mold vulcanization pedestal, is equipped with right above lower mold half
Upper mold half, upper mold half are detachably connected with die cylinder；Die cylinder is fixed by fixed frame；Mold core one and mold
Two shape of inner core is identical, specification is different, and the two tail end is opposite, is detachably fixed with mold core conversion support, mold core conversion support
It is T-shaped, after mold core rotational fuel tank is inserted into bottom end, it is fixedly connected with the shaft of mold core rotational fuel tank；Mold core rotational fuel tank band dynamic model
Tool inner core one, mold core two are converted between upper mold half and lower mold half；Upper mold half, lower mold half and mold core one
It is equipped with according to the shape of high density supporting layer, the shape of mold core two is the barrier shape to form partition；Mold core rotation oil
Cylinder is fixed on pressing mold vulcanization pedestal, and upper mold half, lower mold half and mold core one and mold core two alternately cooperate with
Effect, can easily make and want dual density and need to mention elastomeric pallet, easy to operate.
Further embodiment, the hollow devices in double-density injection forming production system include that vacuum evacuation station, high pressure are empty
Air compressor, high-pressure air pipe and air tube, air tube is uniformly distributed in upper mold half and/or lower mold half, and is communicated therewith；Air tube
It is communicated respectively with vacuum evacuation station, High-Pressure Compressor by high-pressure air pipe, the vacuum evacuation and high pressure of entire mold is filled
Gas can be carried out using a set of pipeline, easy to operate, and part of appliance utilization rate is high.
Further embodiment, the hollow devices in double-density injection forming production system further include Electrocontrolled tee valve door, sky
Hot-air heater and pipe fitting；After High-Pressure Compressor is passed through air heater by tracheae, then connect with Electrocontrolled tee valve door,
Vacuum evacuation station is connected by tracheae with Electrocontrolled tee valve door, and high-pressure air pipe is connected with Electrocontrolled tee valve door, and three is respectively the same as electricity
Control three accesses connection of three-way valve；The other end of high-pressure air pipe is connected to by pipe fitting with air tube, and pipe fitting is fixed on pressure
Mould vulcanizes on the fixed frame of pedestal, is operated more square by Electrocontrolled tee valve door to vacuum evacuation and high-pressure aerated alternate operation
Just, high pressure gas can also be heated, avoids the internal-external temperature difference of high density supporting layer when vulcanization excessive and influences vulcanization effect
Fruit.
Further embodiment, pressing mold vulcanization plant further include molding crossbeam, and the hydraulic stem of die cylinder passes through molding crossbeam
Pilot hole after be fixedly connected again with upper mold half；Molding crossbeam is fixed on the fixed frame of pressing mold vulcanization plant, molds crossbeam
Positioning, guiding and the triple role effect for stablizing opening and closing mold are played, and ensure that stabilization when leakproofness and vulcanization in turn
Property；Pressing mold vulcanization plant further includes die heater；Die heater is set to top and/or the lower mold half of upper mold half
Lower part makes sizing material keep stable sulfided state high-pressure aerated in sulfidation；Pressing mold vulcanizes pedestal and vulcanizes dress together with pressing mold
It sets and hollow devices is fixed seat in the plane；It is movable seat in the plane that machine base, which is injected, together with injection device；Movable seat in the plane corresponds to multiple solid
Determine seat in the plane, and moved back and forth between each fixed seat in the plane, same injection device corresponds to multiple pressing mold vulcanization plants, in rubber and plastic support
In the sulfidation of disk, the injection work of different pressing mold vulcanization plants is successively carried out, is greatly improved work efficiency.
A kind of dual density is disposably injection moulded the manufacture craft of rubber and plastic pallet, step are as follows:
Step 1: the plasticizing of high density rubber: material switching oil cylinder control material switching conversion valve is by feed pipe one and in advance
Penetrate material-holding chamber connection；Increase density rubber pellet by loading hopper and enter plasticizing injection barrel, while plasticizing injection screw rotates
Plasticizing high density rubber is entered into pre-firing material-holding chamber, under the promotion of material, injection ram is moved back to setting position；
Step 2: molding: mold core rotational fuel tank rotates mold core conversion support, and mold core one is inserted into upper mold half under
At center between half mold, starting die cylinder is moved down, and upper mold half is closed up with lower mold half；
Step 3: vacuumizing: starting Electrocontrolled tee valve door, vacuum evacuation station are connected to by high-pressure air pipe, starting vacuum evacuation
It stands, air is by air tube, high-pressure air pipe, the discharge of vacuum evacuation station in upper mold half and lower mold half；
Step 4: injection: starting injection seat Shift cylinder, by the upper mold half and lower mold half after injection head insertion molding
It is interior, start injection cylinder, injection ram Forward will be in the high density rubber injection mold in pre-firing material-holding chamber；Injection head is closed；
Start injection seat Shift cylinder, injection head is exited into mold, molding is stood after injection；
Step 5: the foaming of low-density sizing material: material switching oil cylinder control material switching conversion valve is by feed pipe two and in advance
Penetrate material-holding chamber connection；Low-density rubber is entered pre-firing material-holding chamber by feed pipe two by continuous frothing machine, under the promotion of material,
Injection ram is moved back to setting position；
Step 6: die sinking: starting die cylinder moves up, and opens the high density supporting layer for including half of high density sizing material respectively
Upper mold half and lower mold half, start mold core rotational fuel tank, mold core conversion support extracts mold core one out, and will be in mold
Core two is inserted at the center between upper mold half and lower mold half；
Step 7: secondary mould closing: starting die cylinder moves down, and is closed upper mold half and lower mold half；
Step 8: biphasic injection: starting injection seat Shift cylinder, by the upper mold half and lower half after injection head insertion molding
In mold, start injection cylinder, injection ram Forward will be in the low-density rubber injection mold in pre-firing material-holding chamber；
Step 9: mold core is moved back in die sinking: starting die cylinder moves up, and opens upper mold half and lower mold half, and starting mold core turns
Dynamic oil cylinder, mold core conversion support extract mold core two out；
Step 10: molding three times: starting die cylinder moves down, and will include the upper mold half of half of high density supporting layer respectively
Close up again with lower mold half, the grid hollow form after being removed between high density supporting layer in mold core two；
Step 11: high-pressure aerated: Electrocontrolled tee valve door energization conversion connection High-Pressure Compressor and air heater,
And air tube is connected after high pressure gas is heated by air heater by high-pressure air pipe, upper half is entered by high-pressure air pipe, air tube
Mold and lower mold half inner cavity are allowed to high-temperature and high-pressure conditions required for having vulcanization；
Step 12: vulcanization: upper mold half and the high density supporting layer of lower mold half inner cavity are vulcanized；
Step 13: pressure release: by the high temperature and high pressure gas pressure release of hollow inside, high density supporting layer is quick-fried when avoiding being opened
It splits；
Step 14: twice-die-opening: starting die cylinder moves up, and opens upper mold half and lower mold half, space in taking-up
The high density supporting layer of grid.
3. beneficial effect
Compared with prior art, the present invention has the following obvious advantages:
(1) dual density of the invention is disposably injection moulded rubber and plastic pallet, and high density supporting layer and low-density elasticity are intermediate
Layer company is in one and shares out the work and help one another, and high density supporting layer bearing goods, low-density resilient middle layer plays damping, barrier chamber
The low-density resilient middle layer stability of body is good, and intensity is high, light-weight；
(2) dual density of the invention is disposably injection moulded rubber and plastic pallet, system complete double-density injection, in
Empty, sulfidation can effectively solve secondary pressurization again, heating during dual density rubber and plastic pallet production, cause energy consumption, consumption
When, problem at high cost, produced pair with reducing the cost of dual density rubber and plastic pallet, molding time, reducing energy consumption, and can eliminate
Shipping expense between density rubber and plastic pallet process；It furthermore reduces reheating bring noxious gas emission, reduces two
The rejection rate of secondary heating bring dual density rubber and plastic pallet reduces reheating pressurization bring energy consumption, has reached ring
Protect energy-efficient effect；
(3) dual density of the invention is disposably injection moulded rubber and plastic pallet, and double-density injection forming production system can basis
Dual density rubber and plastic pallet different process requirement, adjust needed for technological parameter: injection pressure, injection temperature, middle air source pressure,
Gas source temperature, vulcanization time reach product optimum efficiency；
(4) dual density of the invention is disposably injection moulded rubber and plastic pallet, to guarantee its flexibility, disposal molding production
System makes full use of the responsive to axial force in plasticizing injection screw rotary course backward, additional without applying to plasticizing injection screw
Power can be realized plasticizing material chamber and be gradually increased and achieve the purpose that sizing material is temporary；
(5) dual density of the invention is disposably injection moulded rubber and plastic pallet, double-density injection forming production system it is entire
The molding and seal operation of mold (including upper mold half, lower mold half and mold core one, two) are accomplished without any letup, operation letter
It is single, convenient and efficient；
(6) dual density of the invention is disposably injection moulded rubber and plastic pallet, the molding of double-density injection forming production system
Crossbeam play positioning, guiding and stablize opening and closing mold triple role effect, and ensure that in turn leakproofness and vulcanization when
Stability；
(7) dual density of the invention is disposably injection moulded rubber and plastic pallet, the mold of double-density injection forming production system
Heater makes sizing material keep stable sulfided state high-pressure aerated in sulfidation；
(8) dual density of the invention is disposably injection moulded rubber and plastic pallet, the activity of double-density injection forming production system
Seat in the plane corresponds to multiple fixed seats in the plane, and moves back and forth between each fixed seat in the plane, and same injection device corresponds to multiple pressing mold sulphur
Makeup is set, and in the sulfidation of dual density rubber and plastic pallet, is successively carried out the injection work of different pressing mold vulcanization plants, is mentioned significantly
High working efficiency；
(9) dual density of the invention is disposably injection moulded the manufacture craft of rubber and plastic pallet, rubber and plastic pallet obtained is heat-resisting,
Wear-resisting, weather-proof, moreover, same die cavity produces, quality is stablized, and dynamic balancing even results are good；
(10) manufacture craft of the invention can continue production free of discontinuities, production efficiency and high degree of automation.
Detailed description of the invention
Fig. 1 is longitudinal sectional view of the invention；
Fig. 2 is top view of the invention；
Fig. 3 is the operation system structure schematic diagram in the present invention；
Fig. 4 is schematic diagram after the mould part amplification in the present invention.
In figure: 1, injecting machine base；2, injection device；3, pressing mold vulcanization plant；4, hollow devices；5, pressing mold vulcanizes platform
Seat；6, high density supporting layer；7, pallet divides cavity；8, pallet loss of weight cavity；9, partition；20, fixed plate；21, loading hopper；22,
Injection cylinder；23, plasticizing injection barrel；24, injection seat Shift cylinder；25, pre-firing material-holding chamber；26, continuous frothing machine；27, object
Material switching oil cylinder；28, injection head；29, material switches conversion valve；31, die cylinder；32, crossbeam is molded；33, upper mold half；
34, lower mold half；35, mold core one；36, mold core two；37, mold core conversion support；38, die heater；39, mold core
Rotational fuel tank；41, vacuum evacuation station；42, Electrocontrolled tee valve door；43, air heater；44, High-Pressure Compressor；45, high
Air pipe；46, pipe fitting；47, air tube；221, injection ram；231, it is plasticized injection screw；232, feed pipe one；233, it is plasticized
Heater；261, feed pipe two.
Specific embodiment
To further appreciate that the contents of the present invention, this present invention is described in detail in conjunction with attached drawing.
Embodiment 1
The dual density of the present embodiment is disposably injection moulded rubber and plastic pallet, and as shown in Figure 1, 2, including upper layer and lower layer are latticed
High density supporting layer 6 and low-density resilient middle layer, low-density resilient middle layer is the barrier cavity of hollow grid, and is passed through
Partition 9, which separates, divides cavity 7 for equally distributed pallet；Inner wall and partition 9 connection of high density supporting layer 6 are in a monoblock type
Structure, can integrated injection forming；The material of partition 9 is the low-density rubber that density is less than high density supporting layer 6, plays elasticity
The effect of damping, and stability is good, and intensity is high, and light-weight, corresponding high density supporting layer 6 is high density rubber, rises and holds
The effect of loading object.
Embodiment 2
The dual density of the present embodiment is disposably injection moulded rubber and plastic pallet, and with embodiment 1, improvements exist basic structure
In: partial tray divides the connection of cavity 7 to form pallet loss of weight cavity 8, to mitigate overall weight, improves mobility, pallet loss of weight chamber
The symmetrical distribution between bilevel high density supporting layer 6 of body 8, to improve stability, as shown in Figure 1, pallet loss of weight chamber
Body 8 is 2；Partition 9 and high density supporting layer 6 are the integral structure with mold depanning；It is double by composite rubber-plastic material application
Density is injection moulded the injection of production system one-step method completion dual-density rubber material, hollow and sulfuration process is made, and in a mold
The interior injection for completing dual density rubber and plastic pallet, hollow and vulcanization, avoid product in the circulation of each process, are produced into reduce
This.
Double-density injection forming production system in the present embodiment include injection machine base 1 and pressing mold vulcanization pedestal 5 and
The injection device 2 and pressing mold vulcanization plant 3 being individually fixed in the two further include the hollow devices of pressing mold vulcanization 5 side of pedestal
4, pressing mold vulcanization plant 3 includes two mold cores, and injection device 2 is corresponding different by two kinds of different plasticized rubber material of density
Mold core be successively injected into the mold of pressing mold vulcanization plant 3, high pressure gas is passed through pressing mold vulcanization plant by hollow devices 4
The high pressure gas hollow cavity that mold core 2 36 is formed after removing in plasticized rubber material in 3 mold is allowed to have vulcanization institute
The condition of high voltage needed, it is ensured that inside and outside uniform vulcanization effect, pressing mold vulcanization plant 3 carry out the plasticized rubber material in mold
Pressing mold and vulcanization.
Embodiment 3
The dual density of the present embodiment is disposably injection moulded rubber and plastic pallet, for produce rubber and plastic pallet note penetrate dual density at
The basic structure of type production system is theed improvement is that with embodiment 2: as shown in figure 3, injection device 2 includes loading hopper 21, note
Penetrate oil cylinder 22, plasticizing injection barrel 23, injection seat Shift cylinder 24, pre-firing material-holding chamber 25, continuous frothing machine 26, material switching oil
Cylinder 27, injection head 28 and material switch conversion valve 29；Loading hopper 21 is communicated with the beginning of plasticizing injection barrel 23, plasticizing injection
The cylinder barrel that barrel 23 is fixed on injection cylinder 22 stops side；The discharge port of plasticizing injection barrel 23 and continuous frothing machine 26 passes through respectively
Feed pipe 1 and feed pipe 2 261 are communicated with pre-firing material-holding chamber 25, and material switches conversion valve 29 and material switches oil cylinder 27
Piston rod connection after control feed pipe 1 and feed pipe 2 261 alternation switch, to switch the injection of different sizing materials；Modeling
Change injection barrel 23, continuous frothing machine 26 and material switching oil cylinder 27 and is both secured to 25 top of pre-firing material-holding chamber, injection cylinder 22
Interior injection ram 221 is inserted into pre-firing material-holding chamber 25, and injection head 28,28 face of injection head is arranged in the front end of pre-firing material-holding chamber 25
The mould gate of pressing mold vulcanization plant 3 uses the same high and low density sizing material of 28 alternate injection of injection head；Pre-firing material-holding chamber 25
Bottom is fixedly connected by fixed plate 20 with the piston rod of injection seat Shift cylinder 24；Injection seat Shift cylinder 24 is fixed on injection
On machine base 1；The outer wall of plasticizing injection barrel 23 is coated with plasticizing heater 233, for being plasticized high density sizing material.Pressing mold vulcanization
Device 3 includes die cylinder 31, upper mold half 33, lower mold half 34, mold core 1, mold core 2 36 and mold core rotation
Oil cylinder 39；Lower mold half 34 is fixed on pressing mold vulcanization pedestal 5, and the surface of lower mold half 34 is equipped with upper mold half
33, upper mold half 33 is detachably connected with die cylinder 31；Die cylinder 31 is fixed by fixed frame；Mold core 1 and mould
It is identical as tray outline to have 2 36 shape of inner core, specification is different, and the two tail end is opposite, detachably solid with mold core conversion support 37
Fixed, mold core conversion support 37 is T-shaped, the fixed company of shaft after mold core rotational fuel tank 39 is inserted into bottom end, with mold core rotational fuel tank 39
It connects；39 driven mold inner core 1 of mold core rotational fuel tank, mold core 2 36 turn between upper mold half 33 and lower mold half 34
It changes；Upper mold half 33, lower mold half 34, mold core 1 and mold core 2 36 are matched according to the shape of high density supporting layer 6
Setting is closed, moreover, the shape of mold core 2 36 still forms the barrier shape of partition 9；Mold core rotational fuel tank 39 is fixed on pressing mold
Vulcanize on pedestal 5, upper mold half, lower mold half and mold core 1, mold core 2 36 alternately act synergistically, can be square
Just production wants dual density and needs the pallet class rubber and plastic pallet of hollow grid, easy to operate.Hollow devices 4 include vacuum evacuation
It stands 41, High-Pressure Compressor 44, high-pressure air pipe 45 and air tube 47, air tube 47 is uniformly distributed in upper mold half 33 and/or lower half
On mold 34, and communicate therewith；Air tube 47 by high-pressure air pipe 45 respectively with vacuum evacuation stand 41,44 phase of High-Pressure Compressor
It is logical, vacuum evacuation to entire mold and it is high-pressure aerated carried out using a set of pipeline, easy to operate, part of appliance utilization rate
It is high.
The dual density of the present embodiment is disposably injection moulded in the production process of rubber and plastic pallet, can effectively solve double injection head
Injector, in the mobile alignment procedures of injection head, injection gate is easy to blocking or cast gate is unsmooth, leads to the problem of waste product, and
And two sets of injection mechanisms, equipment cost is not only increased, but also increase occupation area of equipment, the production system of the present embodiment may be used also
It is required according to the different process of pallet, technological parameter needed for adjusting: injection pressure, injection temperature, gas source ratio, gas source temperature
Deng, therefore, the production system of this present embodiment reduces the cost of dual density pallet, molding time, reduces energy consumption,
And the rejection rate of dual density pallet can be reduced, it ensure that product quality.
Embodiment 4
The dual density of the present embodiment is disposably injection moulded rubber and plastic pallet, for producing the molding of rubber and plastic pallet double-density injection
The basic structure of production system is theed improvement is that with embodiment 3: as shown in Figure 3,4, mold core 1 and mold core two
36 outer shapes are identical as pallet, but specification is different, and the shape of mold core 2 36 is the barrier shape to form partition 9, belly shirt
Setting 4 further includes Electrocontrolled tee valve door 42, air heater 43 and pipe fitting 46；High-Pressure Compressor 44 is passed through by tracheae
It after air heater 43, then connects with Electrocontrolled tee valve door 42, vacuum evacuation station 41 is connected by tracheae and Electrocontrolled tee valve door 42
It connects, high-pressure air pipe 45 and Electrocontrolled tee valve door 42 connect, and three connects with three accesses of Electrocontrolled tee valve door 42 respectively；High pressure
The other end of tracheae 45 is connected to by pipe fitting 46 with air tube 47, and pipe fitting 46 is fixed on pressing mold vulcanization pedestal 5, by automatically controlled
Three-way valve 42, to vacuum evacuation and high-pressure aerated alternate operation, operation is more convenient, can also add to high pressure gas
Heat avoids the internal-external temperature difference of rubber and plastic pallet when vulcanization excessive and influences vulcanization effect.
Embodiment 5
The dual density of the present embodiment is disposably injection moulded rubber and plastic pallet, for produce the double-density injection of rubber and plastic pallet at
The basic structure of type production system is theed improvement is that with embodiment 4: pressing mold vulcanization plant 3 further includes molding crossbeam 32, molding
The hydraulic stem of oil cylinder 31 is fixedly connected with upper mold half 33 again after passing through the pilot hole for molding crossbeam 32；It is fixed to mold crossbeam 32
In on the fixed frame of pressing mold vulcanization plant 3, molding crossbeam plays positioning, guiding and the triple role effect for stablizing opening and closing mold
Fruit, and ensure that stability when leakproofness and vulcanization in turn.Pressing mold vulcanization plant 3 further includes die heater 38；Mold adds
Hot device 38 is set to the top of upper mold half 33 and the lower part of lower mold half 34, and sizing material is made to keep stable in sulfidation
Sulfided state is high-pressure aerated.
The dual density of the present embodiment is disposably injection moulded the manufacture craft of rubber and plastic pallet, is applied to the hollow rubber and plastic of dual density
The production of pallet, step are as follows:
Step 1: high density rubber is plasticized: material switches oil cylinder 27 and controls material switching conversion valve 29 for feed pipe one
232 are connected to pre-firing material-holding chamber 25；Increase density rubber pellet by loading hopper 21 and enters plasticizing injection barrel 23, plasticizing injection
Plasticizing high density rubber is entered into pre-firing material-holding chamber 25 while screw rod 231 rotates, under the promotion of material, injection ram 221
It moves back to setting position；
Step 2: molding: mold core rotational fuel tank 39 rotates mold core conversion support 37, and mold core 1 is inserted into upper mold section
At center between tool 33 and lower mold half 34, starting die cylinder 31 is moved down, in the case where molding 32 guiding role of crossbeam, upper half
Mold 33 closes up with lower mold half；
Step 3: vacuumizing: vacuum evacuation station 41 is connected to by high-pressure air pipe 45, is started by starting Electrocontrolled tee valve door 42
Vacuum evacuation station 41, upper mold half 33 is with air in lower mold half 36 by air tube 47, high-pressure air pipe 45,41 rows of vacuum evacuation station
Out, survival gas in mold is extracted out, and then guarantees injection, hollow and vulcanization effect；
Step 4: injection: opening injection head 28, start injection seat Shift cylinder 24, after the insertion molding of injection head 28
In upper mold half 33 and lower mold half 34, start injection cylinder 22, injection ram 221 moves forward, will be whole in pre-firing material-holding chamber 25
Low-density rubber injection mold in, after injection stand molding；
Step 5: low-density sizing material foams: material switches oil cylinder 27 and controls material switching conversion valve 29 for feed pipe two
261 are connected to pre-firing material-holding chamber 25；Continuous frothing machine 26 enters the low-density rubber after foaming by feed pipe 2 261 pre-
Material-holding chamber 25 is penetrated, under the promotion of material, injection ram 221 is moved back to setting position；Quarter can be set on injection ram 221
Degree injects rubber material using quantity to determine；
Step 6: die sinking: starting die cylinder 31 moves up, and opens the rubber and plastic pallet for including half of high density sizing material respectively
Upper mold half 33 and lower mold half 34 start mold core rotational fuel tank 39, and mold core conversion support 37 extracts mold core 1 out, and
Mold core 2 36 is inserted at the center between upper mold half 33 and lower mold half 34；Under normal circumstances, mold core 2 36
Shape it is identical with one 35 shape of mold core, but 2 36 volume of mold core be less than mold core 1, mold core 2 36
Interior shape be the barrier shape to form partition；
Step 7: secondary mould closing: starting die cylinder 31 moves down, closure upper mold half 33 and lower mold half 34；
Step 8: biphasic injection: starting injection seat Shift cylinder 24, by the upper mold half 33 after the insertion molding of injection head 28
In lower mold half 34, start injection cylinder 22, injection ram 221 moves forward, and the low-density rubber in pre-firing material-holding chamber 25 is infused
Enter in mold；
Step 9: mold core is moved back in die sinking: starting die cylinder 31 moves up, and opens upper mold half 33 and lower mold half 34, starting
Mold core rotational fuel tank 39, is rotated by 90 °, and mold core conversion support 37 extracts mold core 2 36 out；
Step 10: molding three times: starting die cylinder 31 moves down, and will include the upper mold half 33 of half of rubber and plastic pallet respectively
Close up again with lower mold half 34, the grid hollow form after being removed inside pallet in mold core 2 36；
Step 11: high-pressure aerated: 42 energization conversion connection High-Pressure Compressor 44 of Electrocontrolled tee valve door and high pressure gas
Pipe 45, and air tube 47 is connected after high pressure gas is heated by air heater 43 by high-pressure air pipe 45 and passes through high-pressure air pipe
45, air tube 47 enters upper mold half 33 and 36 inner cavity of lower mold half, is allowed to high-temperature and high-pressure conditions required for having vulcanization；
Step 12: vulcanization: upper mold half 33 and the dual density pallet of 34 inner cavity of lower mold half are vulcanized；Vulcanized
Cheng Zhong, 38 continuous heating of die heater；
Step 13: pressure release: by the high temperature and high pressure gas pressure release of hollow inside, dual density pallet when die sinking is avoided to burst；
Step 14: twice-die-opening: starting die cylinder 31 moves up, and opens upper mold half 33 and lower mold half 34, takes out
The dual density pallet of hollow grid.
Embodiment 6
The dual density of the present embodiment is disposably injection moulded rubber and plastic pallet, for produce the double-density injection of rubber and plastic pallet at
The basic structure of type production system is theed improvement is that with embodiment 5: pressing mold vulcanize pedestal 5 together with pressing mold vulcanization plant 3 and
Hollow devices 4 are fixed seat in the plane；It is movable seat in the plane that machine base 1, which is injected, together with injection device 2；Movable seat in the plane corresponds to multiple fixed machines
Position, and moved back and forth between each fixed seat in the plane, same injection device corresponds to multiple pressing mold vulcanization plants, in rubber and plastic pallet
In sulfidation, the injection work of different pressing mold vulcanization plants is successively carried out, is greatly improved work efficiency.
The dual density of the present embodiment is disposably injection moulded the manufacture craft of rubber and plastic pallet, is applied to the hollow rubber and plastic of dual density
The production of pallet, step are as follows:
Step 1: high density rubber is plasticized: material switches oil cylinder 27 and controls material switching conversion valve 29 for feed pipe one
232 are connected to pre-firing material-holding chamber 25；Increase density rubber pellet by loading hopper 21 and enters plasticizing injection barrel 23, plasticizing injection
Plasticizing high density rubber is entered into pre-firing material-holding chamber 25 while screw rod 231 rotates, plasticization temperature is 60~100 DEG C, this implementation
It is 100 DEG C in example, under the promotion of material, injection ram 221 is moved back to setting position；
Step 2: molding: mold core rotational fuel tank 39 rotates mold core conversion support 37, and mold core 1 is inserted into upper mold section
At center between tool 33 and lower mold half 34, starting die cylinder 31 is moved down, in the case where molding 32 guiding role of crossbeam, molding
In the process, 100 DEG C can be heated up to die cavity, upper mold half 33 is closed up with lower mold half；
Step 3: vacuumizing: vacuum evacuation station 41 is connected to by high-pressure air pipe 45, is started by starting Electrocontrolled tee valve door 42
Vacuum evacuation station 41, upper mold half 33 is with air in lower mold half 36 by air tube 47, high-pressure air pipe 45,41 rows of vacuum evacuation station
Out, survival gas in mold is extracted out, and then guarantees injection, hollow and vulcanization effect；
Step 4: injection: opening injection head 28, start injection seat Shift cylinder 24, after the insertion molding of injection head 28
In upper mold half 33 and lower mold half 34, start injection cylinder 22, injection ram 221 moves forward, will be whole in pre-firing material-holding chamber 25
Low-density rubber injection mold in, injection material temperature be 100 DEG C, inject 5~30s, after injection stand 5~50s molding；
Step 5: low-density sizing material foams: material switches oil cylinder 27 and controls material switching conversion valve 29 for feed pipe two
261 are connected to pre-firing material-holding chamber 25；Continuous frothing machine 26 enters the low-density rubber after foaming by feed pipe 2 261 pre-
Material-holding chamber 25 is penetrated, under the promotion of material, injection ram 221 is moved back to setting position；Quarter can be set on injection ram 221
Degree injects rubber material using quantity to determine；
Step 6: die sinking: starting die cylinder 31 moves up, and opens the rubber and plastic pallet for including half of high density sizing material respectively
Upper mold half 33 and lower mold half 34 are adjacent to upper mold half 33 and lower mold half 34 at this point, internal molding sizing material is divided into two
Inner wall, start mold core rotational fuel tank 39, mold core conversion support 37 extracts mold core 1 out, and by mold core 2 36
It is inserted at the center between upper mold half 33 and lower mold half 34；Under normal circumstances, in the shape and mold of mold core 2 36
One 35 shape of core is identical, but 2 36 volume of mold core is less than mold core 1, and the interior shape of mold core 2 36 is shape
At the barrier shape of partition；
Step 7: secondary mould closing: starting die cylinder 31 moves down, closure upper mold half 33 and lower mold half 34；
Step 8: biphasic injection: starting injection seat Shift cylinder 24, by the upper mold half 33 after the insertion molding of injection head 28
In lower mold half 34, start injection cylinder 22, injection ram 221 moves forward, and the low-density rubber in pre-firing material-holding chamber 25 is infused
Enter in mold；
Step 9: mold core is moved back in die sinking: starting die cylinder 31 moves up, and opens upper mold half 33 and lower mold half 34: starting
Mold core rotational fuel tank 39, is rotated by 90 °, and mold core conversion support 37 extracts mold core 2 36 out；
Step 10: molding three times: starting die cylinder 31 moves down, and will include the upper mold half 33 of half of rubber and plastic pallet respectively
Close up again with lower mold half 34, the grid hollow form after being removed inside pallet in mold core 2 36；
Step 11: high-pressure aerated: 42 energization conversion connection High-Pressure Compressor 44 of Electrocontrolled tee valve door and high pressure gas
Pipe 45, and air tube 47 is connected after high pressure gas is heated by air heater 43 by high-pressure air pipe 45 and passes through high-pressure air pipe
45, air tube 47 enters upper mold half 33 and 36 inner cavity of lower mold half, and the pressure of high temperature and high pressure gas is 10~50kg, the present embodiment
In be 50kg, temperature be 130~180 DEG C, in the present embodiment be 180 DEG C；According to different purposes pallets, different the blowing pressures are set,
It is allowed to high-temperature and high-pressure conditions required for having vulcanization；
Step 12: vulcanization: upper mold half 33 and the dual density pallet of 34 inner cavity of lower mold half are vulcanized；Vulcanized
Cheng Zhong, 38 continuous heating of die heater make rubber and plastic pallet internal and external temperature when vulcanization unanimously be heated to 180 DEG C, improve vulcanization
Stability and uniformity effects；Vulcanization time is 300~2000s, is 2000s in the present embodiment.
Step 13: in sulfidation, it is dynamic that the moving machine displacement that machine base 1 is formed together with injection device 2 will telephone-moving: be injected
By the fixation seat in the plane formed to next pressing mold vulcanization pedestal 5 together with pressing mold vulcanization plant 3 and hollow devices 4, step is repeated
One to 11；
Step 14: pressure release: by the high temperature and high pressure gas pressure release of hollow inside, make its internal and external pressure balance, avoid being opened
When dual density pallet burst；
Step 15: twice-die-opening: starting die cylinder 31 moves up, and opens upper mold half 33 and lower mold half 34, takes out
The dual density pallet of hollow grid.
The dual density of the present embodiment is disposably injection moulded rubber and plastic pallet and its production technology, needed for can adjusting as needed
Technological parameter: it is best to can reach product for injection pressure, injection temperature, the blowing pressure, gas source temperature, vulcanization time, sulfide stress
Effect.
Schematically the present invention and embodiments thereof are described above, description is not limiting, institute in attached drawing
What is shown is also one of embodiments of the present invention, and actual structure is not limited to this.So if the common skill of this field
Art personnel are enlightened by it, without departing from the spirit of the invention, are not inventively designed and the technical solution
Similar frame mode and embodiment, are within the scope of protection of the invention.
Claims (10)
1. a kind of dual density is disposably injection moulded rubber and plastic pallet, which is characterized in that including the latticed high density of upper layer and lower layer
Supporting layer (6) and low-density resilient middle layer, the low-density resilient middle layer be hollow grid barrier cavity, and by every
Plate (9), which separates, divides cavity (7) for equally distributed pallet；Inner wall and partition (9) connection of the high density supporting layer (6) are in one
A monolithic construction；The material of the partition (9) is the low-density rubber that density is less than high density supporting layer (6), corresponding high
Density supporting layer (6) is high density rubber.
2. dual density as described in claim 1 is disposably injection moulded rubber and plastic pallet, which is characterized in that the part pallet point
Cavity (7) connection forms pallet loss of weight cavity (8), and the pallet loss of weight cavity (8) is in bilevel high density supporting layer (6)
Between symmetrical distribution；The partition (9) and high density supporting layer (6) are the integral structure with mold depanning；Pass through rubber and plastic
Composite material application double-density injection forming production system one-step method completes dual-density rubber material injection, hollow and sulfuration process system
?.
3. dual density as claimed in claim 2 is disposably injection moulded rubber and plastic pallet, which is characterized in that the double-density injection
Forming production system includes that injection machine base (1) and pressing mold vulcanize injection device pedestal (5) and be individually fixed in the two
It (2) and pressing mold vulcanization plant (3), further include the hollow devices (4) of pressing mold vulcanization pedestal (5) side, the pressing mold vulcanization plant
It (3) include two mold cores, two kinds of different plasticized rubber material of density are corresponded to different molds by the injection device (2)
Inner core is successively injected into the mold of pressing mold vulcanization plant (3), and high pressure gas is passed through pressing mold vulcanization dress by the hollow devices (4)
The hollow cavity in the plasticized rubber material in the mold of (3) is set, the pressing mold vulcanization plant (3) is to the plasticized rubber material in mold
Carry out pressing mold and vulcanization.
4. dual density as claimed in claim 3 is disposably injection moulded rubber and plastic pallet, which is characterized in that the double-density injection
Injection device (2) in forming production system includes loading hopper (21), injection cylinder (22), plasticizing injection barrel (23), injection
Seat Shift cylinder (24), pre-firing material-holding chamber (25), continuous frothing machine (26), material switching oil cylinder (27), injection head (28) and object
Material switching conversion valve (29)；The loading hopper (21) communicates with the beginning of plasticizing injection barrel (23), plasticizing injection barrel
(23) cylinder barrel for being fixed on injection cylinder (22) stops side；The discharge port of the plasticizing injection barrel (23) and continuous frothing machine (26)
It is communicated respectively by feed pipe one (232) and feed pipe two (261) with pre-firing material-holding chamber (25), the material switches conversion valve
(29) feed pipe one (232) are controlled after connecting with the piston rod of material switching oil cylinder (27) and the alternating of feed pipe two (261) is opened
It closes；Plasticizing injection barrel (23), continuous frothing machine (26) and material switching oil cylinder (27) are both secured to pre-firing material-holding chamber
(25) top, in injection ram (221) insertion pre-firing material-holding chamber (25) in the injection cylinder (22), the pre-firing material-holding chamber
(25) injection head (28) are arranged in front end, the mould gate of injection head (28) face pressing mold vulcanization plant (3)；The pre-firing holds material
The bottom of chamber (25) is fixedly connected by fixed plate (20) with the piston rod of injection seat Shift cylinder (24)；The injection seat is mobile
Oil cylinder (24) is fixed in injection machine base (1)；The outer wall of plasticizing injection barrel (23) is coated with plasticizing heater
(233)。
5. dual density as claimed in claim 4 is disposably injection moulded rubber and plastic pallet, which is characterized in that the pressing mold vulcanization dress
Setting (3) includes die cylinder (31), upper mold half (33), lower mold half (34), mold core one (35), mold core 2 36)
With mold core rotational fuel tank (39)；The lower mold half (34) be fixed on pressing mold vulcanization pedestal (5) on, lower mold half (34) just on
Side is equipped with upper mold half (33), and the upper mold half (33) is detachably connected with die cylinder (31)；The molding oil
Cylinder (31) is fixed by fixed frame；The tail end of the mold core one (35) and mold core two (36) is opposite, turns with mold core
Bracket (37) to be changed to be detachably fixed, the mold core conversion support (37) is T-shaped, after mold core rotational fuel tank (39) are inserted into bottom end, with
The shaft of mold core rotational fuel tank (39) is fixedly connected；In mold core rotational fuel tank (39) the driven mold inner core one (35), mold
Core two (36) is converted between upper mold half (33) and lower mold half (34)；Upper mold half (33), lower mold half (34) and mold
Inner core one (35) is equipped with according to the shape of high density supporting layer (6), and the shape of mold core two (36) is to form partition (9)
Barrier shape；The mold core rotational fuel tank (39) is fixed in pressing mold vulcanization pedestal (5).
6. dual density as claimed in claim 5 is disposably injection moulded rubber and plastic pallet, which is characterized in that the double-density injection
Hollow devices (4) in forming production system include vacuum evacuation station (41), High-Pressure Compressor (44), high-pressure air pipe (45)
With air tube (47), the air tube (47) is uniformly distributed in upper mold half (33) and/or lower mold half (34), and communicates therewith；
The air tube (47) is communicated with vacuum evacuation station (41), High-Pressure Compressor (44) respectively by high-pressure air pipe (45).
7. dual density as claimed in claim 5 is disposably injection moulded rubber and plastic pallet, which is characterized in that the double-density injection
Hollow devices (4) in forming production system further include Electrocontrolled tee valve door (42), air heater (43) and pipe fitting (46)；
After the High-Pressure Compressor (44) is passed through air heater (43) by tracheae, then with Electrocontrolled tee valve door (42) connect,
The vacuum evacuation station (41) is connected by tracheae and Electrocontrolled tee valve door (42), the high-pressure air pipe (45) and Electrocontrolled tee valve
Door (42) connection, three connect with three accesses of Electrocontrolled tee valve door (42) respectively；The other end of the high-pressure air pipe (45)
It is connected to by pipe fitting (46) with air tube (47), the pipe fitting (46) is fixed on the fixed frame of pressing mold vulcanization pedestal (5).
8. dual density as claimed in claim 5 is disposably injection moulded rubber and plastic pallet, which is characterized in that the pressing mold vulcanization dress
Setting (3) further includes molding crossbeam (32), and the hydraulic stem of the die cylinder (31) passes through after the pilot hole of molding crossbeam (32) again
It is fixedly connected with upper mold half (33)；The molding crossbeam (32) is fixed on the fixed frame of pressing mold vulcanization plant (3)；
The pressing mold vulcanization plant (3) further includes die heater (38)；The die heater (38) is set to upper mold half
(33) lower part on top and/or lower mold half (34).
9. dual density as claimed in claim 8 is disposably injection moulded rubber and plastic pallet, which is characterized in that the pressing mold vulcanizes platform
Seat (5) is fixed seat in the plane together with pressing mold vulcanization plant (3) and hollow devices (4)；The injection machine base (1) fills together with injection
(2) are set as movable seat in the plane；The activity seat in the plane corresponds to multiple fixed seats in the plane, and moves back and forth between each fixed seat in the plane.
10. the manufacture craft that dual density as claimed in claim 9 is disposably injection moulded rubber and plastic pallet, which is characterized in that step
Are as follows:
Step 1: high density rubber is plasticized: material switches oil cylinder (27) control material switching conversion valve (29) for feed pipe one
(232) it is connected to pre-firing material-holding chamber (25)；Increase density rubber pellet by loading hopper (21) and enters plasticizing injection barrel (23), modeling
Plasticizing high density rubber is entered into pre-firing material-holding chamber (25) while changing injection screw (231) rotation, under the promotion of material, note
Piston (221) is penetrated to move back to setting position；
Step 2: molding: mold core rotational fuel tank (39) rotates mold core conversion support (37), and mold core one (35) is inserted into upper half
At center between mold (33) and lower mold half (34), starting die cylinder (31) is moved down, upper mold half (33) and female die
Tool closes up；
Step 3: vacuumizing: starting Electrocontrolled tee valve door (42), vacuum evacuation station (41) are connected to by high-pressure air pipe (45), starting
Vacuum evacuation station (41), upper mold half (33) and lower mold half (34) interior air are arranged by air tube (47), high-pressure air pipe (45), vacuum
Gas station (41) discharge；
Step 4: injection: starting injection seat Shift cylinder (24), by injection head (28) insertion molding after upper mold half (33) with
In lower mold half (34), start injection cylinder (22), injection ram (221) Forward, by the high density in pre-firing material-holding chamber (25)
Rubber injects in mold；Injection head (28) is closed；Start injection seat Shift cylinder (24), injection head (28) is exited into mold, infuses
Molding is stood after penetrating；
Step 5: low-density sizing material foams: material switches oil cylinder (27) control material switching conversion valve (29) for feed pipe two
(261) it is connected to pre-firing material-holding chamber (25)；Low-density rubber is entered pre-firing by feed pipe two (261) by continuous frothing machine (26)
Material-holding chamber (25), under the promotion of material, injection ram (221) is moved back to setting position；
Step 6: die sinking: starting die cylinder (31) moves up, and opens the high density supporting layer for including half of high density sizing material respectively
(6) upper mold half (33) and lower mold half (34), start mold core rotational fuel tank (39), mold core conversion support (37) will be in mold
Core one (35) extraction, and will be at the center between mold core two (36) insertion upper mold half (33) and lower mold half (34)；
Step 7: secondary mould closing: starting die cylinder (31) moves down, closure upper mold half (33) and lower mold half (34)；
Step 8: biphasic injection: starting injection seat Shift cylinder (24), by the upper mold half after injection head (28) insertion molding
(33) and in lower mold half (34), start injection cylinder (22), injection ram (221) Forward will be in pre-firing material-holding chamber (25)
Low-density rubber injects in mold；
Step 9: mold core is moved back in die sinking: starting die cylinder (31) moves up, and opens upper mold half (33) and lower mold half (34), opens
Moving-mould-core rotational fuel tank (39), mold core conversion support (37) extract mold core two (36) out；
Step 10: molding three times: starting die cylinder (31) moves down, and will include the upper mold half (33) of half of rubber and plastic pallet respectively
Close up again with lower mold half (34), the grid hollow form after being removed between high density supporting layer (6) in mold core two (36)；
Step 11: high-pressure aerated: Electrocontrolled tee valve door (42) energization conversion connection High-Pressure Compressor (44) and air add
Hot device (43), and air tube (47) are connected by high-pressure air pipe (45), after high pressure gas is heated by air heater (43), pass through
High-pressure air pipe (45), air tube (47) enter upper mold half (33) and lower mold half (36) inner cavity；
Step 12: vulcanization: upper mold half (33) and the high density supporting layer (6) of lower mold half (34) inner cavity are vulcanized；
Step 13: pressure release: by the high temperature and high pressure gas pressure release of hollow inside；
Step 14: be opened again: starting die cylinder (31) moves up, and opens upper mold half (33) and lower mold half (34), takes
Dual density rubber and plastic pallet out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811329145.0A CN109318443A (en) | 2018-11-09 | 2018-11-09 | A kind of dual density is disposably injection moulded rubber and plastic pallet and its production technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811329145.0A CN109318443A (en) | 2018-11-09 | 2018-11-09 | A kind of dual density is disposably injection moulded rubber and plastic pallet and its production technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109318443A true CN109318443A (en) | 2019-02-12 |
Family
ID=65261011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811329145.0A Withdrawn CN109318443A (en) | 2018-11-09 | 2018-11-09 | A kind of dual density is disposably injection moulded rubber and plastic pallet and its production technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109318443A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110253792A (en) * | 2019-07-30 | 2019-09-20 | 哈尔滨市航科技术开发有限责任公司 | Wind-tunnel loss of weight model aircraft composite material sends out room component core-pulling type mold |
| CN112297545A (en) * | 2020-10-16 | 2021-02-02 | 广东聚石化学股份有限公司 | Thermoplastic automotive interior part and preparation mold and preparation method thereof |
-
2018
- 2018-11-09 CN CN201811329145.0A patent/CN109318443A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110253792A (en) * | 2019-07-30 | 2019-09-20 | 哈尔滨市航科技术开发有限责任公司 | Wind-tunnel loss of weight model aircraft composite material sends out room component core-pulling type mold |
| CN112297545A (en) * | 2020-10-16 | 2021-02-02 | 广东聚石化学股份有限公司 | Thermoplastic automotive interior part and preparation mold and preparation method thereof |
| CN112297545B (en) * | 2020-10-16 | 2021-12-07 | 广东聚石化学股份有限公司 | Thermoplastic automotive interior part and preparation mold and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109109352B (en) | One-time injection, hollow and vulcanization molding production method of rubber product | |
| CN109318442A (en) | A kind of dual density is disposably injection moulded rubber tyre and its production technology | |
| CN109318443A (en) | A kind of dual density is disposably injection moulded rubber and plastic pallet and its production technology | |
| CN109318445A (en) | A kind of high-elastic wear-resistant dual density foam-in-mould rubber tyre and its manufacture craft | |
| CN105835299A (en) | Microcellular foaming injection molding technology capable of realizing high surface glossiness and high bubble density as well as mold | |
| CN109318441A (en) | A kind of rubber product dual density is disposably injection moulded production system and its production technology | |
| CN109177258A (en) | A kind of rubber product disposably in-molded curing system and molding sulfuration method | |
| CN109367965A (en) | A kind of high-strength light hollow molding rubber and plastic pallet and its manufacture craft | |
| CN209381278U (en) | A kind of dual density is disposably injection moulded rubber and plastic pallet | |
| CN209381279U (en) | A kind of dual density is disposably injection moulded rubber tyre | |
| CN202344770U (en) | Two-color EVA (Ethylene-Vinyl Acetate copolymer) foamed sole mould based on once injection | |
| CN208827187U (en) | A kind of disposable in-molded curing system of rubber product | |
| CN109572022B (en) | Double-density forming in-mold foaming vulcanization forming rubber health-care sole and production process thereof | |
| CN109572015B (en) | Double-density forming in-mold foaming vulcanization forming rubber tire and manufacturing process thereof | |
| CN109318440A (en) | A kind of dual density is disposably injection moulded rubber health-care soles and its production technology | |
| CN209142627U (en) | A kind of high-strength light hollow molding rubber and plastic pallet | |
| CN109318444B (en) | High-strength high-elasticity double-density in-mold foaming rubber plastic tray and manufacturing process thereof | |
| CN109171101A (en) | A kind of high resiliency hollow molding rubber health-care soles and its manufacture craft | |
| CN209395147U (en) | A kind of rubber product dual density is disposably injection moulded production system | |
| CN209036846U (en) | A kind of rubber dual density double injection product foam-in-mould sulfidization molding system | |
| CN208290364U (en) | A kind of injection mold convenient for turnover box demoulding | |
| CN103990803B (en) | Tungsten-molybdenum alloy powder injection mould and technology thereof | |
| CN204658836U (en) | A kind of bicolor injection mould | |
| CN109181124A (en) | A kind of hollow sulfidization molding sole of high elasticity abrasion-proof and preparation method thereof | |
| CN205853243U (en) | A kind of TPU expanded beads injection mo(u)lding die for shoe-sole |
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 | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190212 |
|
| WW01 | Invention patent application withdrawn after publication |